JP2013167622A - Bag-making seal inspection device and inspection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new bag-making seal inspection device and inspection method which allow anyone to efficiently and accurately execute a seal inspection of a back-making product without the need of many experiences or the like.SOLUTION: A bag-making product W to be an inspection object is held, and an inspection liquid is applied to an inner side of the held bag-making product W. Then, an opening of the bag-making product W to which the inspection liquid is applied is closed, and a gas of a prescribed pressure is injected to the inside and held for prescribed time. Thereafter, an inspection condition for setting a gas pressure to be supplied and inspection time is set, a pressure inside the bag-making product W to which the gas of the prescribed pressure is injected is detected, and then the pressure inside the bag-making product W and its change are displayed. Thus, anyone can efficiently and accurately execute the seal inspection of the bag-making product without the need of many experiences or the like.

Description

  The present invention is produced by a packaging bag, particularly a synthetic resin film, used for packaging in various fields such as packaging of foods such as pickles, frozen foods and dried foods, packaging of detergents, and packaging of pharmaceuticals. The present invention relates to an apparatus and an inspection method for inspecting the sealing performance of a packaging bag.

  In general, packaging bags (bag making products) that are made by sealing a synthetic resin film are often used for packaging that requires high airtightness. And in the case of such a use, especially in the case of the use in which the airtightness directly affects the quality retention period of the packaging object, such as foods, the bag-making product is used in the bagging process for packaging the packaging object. When a seal failure occurs, the bag-made product is regarded as a defective product in lot units delivered from a bag-making manufacturer to a manufacturer of bag-made products, for example, a manufacturer of food products. That is, if there is at least one poorly sealed bag-making product in the delivery lot, all of the bag-making products in that delivery lot will be handled as defective products, resulting in a large loss.

  For this reason, in the bag-making product, the airtightness, that is, the sealing performance of the seal portion is inspected after the bag-making. This sealability inspection is usually performed by a bag manufacturer based on a standard set by the manufacturer of the bag manufacturing product, and conventionally, the following inspection methods are generally used.

  There are two types of conventional inspection methods. One of them is an inspection method called a shopper inspection in which the seal portion is peeled off and the resistance at that time is measured to evaluate the sealing performance (this inspection method is called an expansion force test or inspection). Called). The other is a pressure resistance test in which a bag product is filled with a liquid such as water, a predetermined pressure is applied to the bag-made product from the outside, the pressure is maintained for a predetermined time, and the sealing performance is evaluated based on the presence or absence of leakage of the filling liquid. is there. These two types of inspection methods are usually used in combination, and inspection by either inspection method is a laborious operation, which is a heavy burden for bag makers.

  In the case of heat sealing, the bag making product is sealed with a heat sealing apparatus using electric heat. And as a main cause of causing a seal failure in the seal portion, there is insufficient or excessive heating due to voltage fluctuation in the heat seal device, and also to the heating surface of the heat seal device or the seal part of the bag making material There is adhesion of garbage.

  The occurrence of defective seals due to these is sudden. Therefore, if sampling for the sealability inspection is performed at a sufficiently short time interval, even if a seal failure occurs, the final product can be obtained simply by eliminating the bag-making products for the short sampling time. Therefore, it is possible to effectively prevent a defective product from entering a bag-making product shipped from a bag-making manufacturer.

  In the problem of poor sealing of bag-made products, the loss due to the occurrence of defective sealing can be reduced by shortening the sampling time for the sealing property inspection and increasing the inspection frequency as described above. However, the conventional seal inspection as described above takes time and effort, and if the sampling time is shortened, much labor is required for the inspection. Therefore, as long as the conventional inspection method is used, it is practically difficult to make the inspection frequency sufficient, and as a result, the loss due to the seal failure cannot be ignored.

  In addition, in the case of shopper inspection, the conventional inspection method is to inspect by peeling off the seal part of the bag-made product, so the relationship between the inspection result and the sealing property is not necessarily clear, and inspection accuracy The problem remains in that. This is also true for the pressure resistance test. That is, for example, in the case of a bag-making product enclosing an inert gas, sealing performance against a gas that requires higher airtightness becomes a problem, but it is not always sufficient as inspection accuracy to inspect it with liquid encapsulation. I can't say that.

  Therefore, in order to eliminate these disadvantages, the present applicant, as shown in Patent Document 1 below, injects high-pressure gas (air) into the bag-making product to be inspected to inspect the internal pressure of the bag-making product. And a pressing body and a pressure receiving body for closing the opening of the bag-made product during the seal inspection, a change in the bag-making internal pressure is detected, a recording means for recording the detection data, and an inspection internal pressure of the bag-making are determined and A new seal inspection device with a control system that notifies a seal failure according to the internal pressure state is proposed. By using a seal inspection device that uses such air pressure, it is possible to inspect the strength and seal state of the bag-making seal surface efficiently and with little effort. High inspection is possible.

Japanese Patent No. 3854284

  By the way, in the seal inspection using the seal inspection apparatus as described in Patent Document 1, in order to feed back the inspection result to the bag manufacturing process, not only the presence or absence of seal leakage but also the position and state of the leakage are inspected accurately. There is a need to. Therefore, when carrying out a seal inspection using a seal inspection apparatus such as Patent Document 1, for example, a dedicated test solution colored in red is placed inside the bag-made product to be inspected so that the inspector can easily see it. After spraying in advance, this is set in the apparatus.

  However, since the spraying operation of the inspection liquid is manually performed for each bag-making product to be inspected, a part of the inspection liquid is scattered and adheres to clothes or stains the surroundings. Sometimes. In particular, this dedicated test solution does not easily fall once attached to clothes, but in the case of a red test solution, it may look like a bleeding and does not look good.

  In addition, when inspecting the seals of bag making products using such air pressure, the inspection conditions such as pressure and inspection time set for each bag making product to be inspected are different. In order to perform the inspection efficiently and accurately, there is a disadvantage that a lot of experience and skill are required.

  Accordingly, the present invention has been devised to solve these problems, and its purpose is to prevent contamination by a test solution and to produce it efficiently and accurately without requiring much experience. A novel bag-making seal inspection apparatus and inspection method capable of carrying out a seal inspection of bag products are provided.

  In order to solve the above-mentioned problems, the first invention is a bag-making product holding means for holding a bag-making product to be inspected, and a test solution is applied to the inside of the bag-making product held by the bag-making product holding means. And a pressure gas injection means for closing the opening of the bag-making product on which the inspection liquid is applied by the inspection liquid application means, injecting a predetermined pressure of gas therein, and holding it for a predetermined time. An inspection condition setting means for setting the pressure of the gas injected from the pressure gas injection means and an inspection time; and a pressure detection for detecting the pressure in the bag-made product into which a predetermined pressure of gas has been injected by the pressure gas injection means And a display means for displaying the pressure in the bag-making product detected by the pressure detection means and the change thereof.

  According to such a structure, a test | inspection liquid can be apply | coated to the inner side of a bag making product in the state which hold | maintained (set) the bag making product used as test | inspection object. As a result, it is possible to reliably avoid a part of the inspection liquid from being scattered during application and adhering to the clothes of the worker or contaminating the surroundings. Furthermore, the inspection liquid is manually dispensed by the inspector. In addition, after the bag-making product is set in the apparatus, a gas having a predetermined pressure determined for each bag-making product is injected into the device, and the gas pressure can be measured and displayed for a predetermined time. As a result, it is possible to efficiently and accurately carry out a seal inspection of a bag-making product without requiring much experience. Here, the seal inspection of the bag-made product includes, for example, seal strength against the internal pressure (gas pressure) of the bag inner surface 360 °, presence / absence of pinholes, chuck fitting strength, and seal leakage on both sides of the chuck.

  According to a second aspect of the present invention, in the first aspect of the invention, the inspection liquid application means applies the inspection liquid at least near the bottom and near the opening in the bag making product. Device.

  According to such a configuration, since the inspection liquid can be reliably applied not only to the seal portion at the bottom of the bag but also to the opening thereof, for example, when a chuck is provided in the opening, the seal leakage on both sides of the chuck In addition, the seal state can be easily and reliably inspected.

  According to a third aspect of the present invention, in the first or second aspect, the inspection liquid application unit is configured to inspect at least one spray nozzle that can be inserted into and removed from the opening of the bag-making product and the spray nozzle. A bag-making seal inspection apparatus comprising: a test liquid spray can that supplies a liquid; and an actuator that controls supply of the test liquid from the test liquid spray can.

  According to such a configuration, the test liquid can be supplied from the test liquid spray can to the spray nozzle by operating the actuator, and the test liquid can be sprayed from the spray nozzle and applied to the bag-making product. Moreover, since the test solution marketed in the state of a spray can can be easily used as it is, the configuration of the apparatus is simplified, and the manufacturing cost can be kept low.

  A fourth invention is the bag-making seal inspection device according to the third invention, wherein two spray nozzles are provided in the width direction of the opening of the bag-making product. According to such a configuration, the test solution can be sprayed and applied evenly over the entire seal portion in the bag-making product in a short time.

  5th invention is a bag-making seal | sticker test | inspection apparatus provided with the said test | inspection liquid spray can for every said spray nozzle in 4th invention. According to such a configuration, since the test liquid spray can can be replaced for each spray nozzle, the test liquid in the test liquid spray can can be used without waste, and the test liquid from the two spray nozzles can be eliminated simultaneously. Such inconveniences can be avoided.

  According to a sixth aspect of the present invention, the test solution application means moves the spray nozzle through an opening in the bag making product, and moves the tip of the spray nozzle to a corner in the bag making product. A bag-making seal inspection apparatus characterized by having a moving mechanism. According to such a configuration, the tip of the spray nozzle can be positioned at the corner of the bag-making product, and the inspection liquid can be reliably applied to that portion.

  According to a seventh invention, in the first to sixth inventions, the pressure gas injection means includes a pressure gas supply source for supplying a gas having a pressure set by the inspection condition setting means, and an opening of the bag-making product. A nozzle body for injecting the gas supplied from the pressure gas supply source into the interior thereof, and pressing the opening from both sides with the nozzle body facing the opening of the bag making product. A bag-making seal inspection apparatus comprising: a pressing body that closes a portion; and a pressing receiver.

  According to such a configuration, a predetermined pressure of gas is supplied from the pressure gas supply source through the nozzle body in the bag-making product in a state in which the opening of the bag-making product is securely closed by the pressing body by the pressing body and the pressure receiving body. Can be supplied to. Further, after the seal inspection, the gas in the bag making product can be exhausted from the nozzle body.

  According to an eighth aspect, in the seventh aspect, the pressing body includes an actuator that operates in a proximity and separation direction with respect to the pressing receiver, and a foot-operated switch that controls the operation of the actuator. A bag-making seal inspection device characterized by the above.

  According to such a configuration, after the operator sets the bag-making product on the apparatus with both hands, the pressing operation of the bag-making product at the time of applying the test solution can be easily performed by operating the foot-operated switch. Can do.

  According to a ninth invention, in the first to eighth inventions, the inspection condition setting means is a storage unit storing data defining inspection conditions for each bag-making product to be inspected, and the inspection object. A gas supplied from the pressure gas injecting means based on data stored in the storage unit corresponding to the type of bag-making product input at the input unit. The bag-making seal inspection device is characterized in that a pressure and an inspection time are set.

  According to such a configuration, the inspector simply inputs the type of bag making product to be inspected from the input unit, and based on the data defining the inspection conditions for each bag making product, the gas pressure and the inspection time The seal inspection can be automatically performed under the optimum conditions corresponding to the bag-making product.

  A tenth invention is characterized in that, in the first to ninth inventions, at least the bag product holding means, the test solution applying means, and the gas injection means are accommodated in a casing having a front door that can be opened and closed. This is a bag-making seal inspection device. According to such a configuration, it is possible to safely carry out the inspection liquid application process and gas injection while holding the bag-made product in a housing having a front door that can be freely opened and closed.

  An eleventh aspect of the invention is the bag making seal inspection apparatus according to the tenth aspect of the invention, further comprising bag making product discharge means for discharging the bag making product after the seal inspection below the pressure gas injection means. is there. According to such a configuration, the inspector can surely discharge the product from the pressure gas injection means and collect it in a collection box or the like without directly touching the bag-made product soiled with the inspection liquid after the seal inspection. Can do.

  In a twelfth aspect based on the eleventh aspect, the bag-made product discharge means includes a discharge table that partitions the lower surface side in the housing, and a rotation mechanism that rotates the discharge table downward. A bag-making seal inspection device characterized by the above.

  According to such a configuration, after the bag-made product discharged from the pressure gas injection means is once placed on the discharge table, the inspection table is sealed by rotating the discharge table downward by the rotation mechanism. It can be dropped and stored in a collection box without touching the bag-making product after inspection.

  A thirteenth aspect of the present invention is the bag-making seal inspection apparatus according to any one of the first to twelfth aspects, wherein the inspection condition setting means and the display means comprise a touch panel type liquid crystal monitor. According to such a configuration, a single touch panel type liquid crystal monitor can be used to input and input inspection conditions and display inspection results, which greatly improves operability and provides them separately. Compared to this, the manufacturing cost can be greatly reduced.

  A fourteenth aspect of the invention is a bag-making product holding step for holding a bag-making product to be inspected, a test liquid application step for applying a test liquid to the inside of the bag-making product held in the bag-making product holding step, From the pressure gas injection step, the pressure gas injection step of closing the opening of the bag-made product to which the inspection solution has adhered to the inside by the inspection solution application step, injecting a predetermined pressure of gas therein, and holding the gas for a predetermined time; An inspection condition setting step for setting a gas pressure to be supplied and an inspection time, a pressure detection step for detecting a pressure in the bag-made product into which a predetermined pressure of gas has been injected in the pressure gas injection step, and the pressure detection step And a display step for displaying the pressure in the bag-making product detected in step 1 and the change thereof.

  According to such a method, as in the first aspect of the invention, since the inspection solution can be applied to the inner surface of the bag making product while the bag making product to be inspected is held in the apparatus, a part of the inspection solution is scattered. Thus, it is possible to surely prevent the worker from adhering to the clothes of the worker and soiling the surroundings. In addition, after setting a bag-making product in the device, it is possible to inject a gas of a predetermined pressure determined for each bag-making product into the device and measure and display the gas pressure for a predetermined time. It is possible to carry out seal inspection of bag-making products efficiently and accurately.

  According to a fifteenth aspect, in the fourteenth aspect, the inspection liquid application step applies the inspection liquid to at least the vicinity of the bottom and the opening in the bag manufacturing product. Is the method. According to such a method, similarly to the second invention, since the inspection liquid can be reliably applied not only to the seal portion on the inner surface of the bag but also to the opening, the seal leakage and the seal state on both sides of the chuck are easy. And it can be inspected reliably.

  According to the present invention, the inspection liquid can be applied to the inside of the bag-making product while the bag-making product to be inspected is held (set) in the apparatus. As a result, it is possible to reliably avoid a part of the inspection liquid from being scattered during application and adhering to the clothes of the worker or contaminating the surroundings. Furthermore, the inspection liquid is manually dispensed by the inspector. In addition, after the bag-making product is set in the apparatus, a gas having a predetermined pressure determined for each bag-making product is injected into the device, and the gas pressure can be measured and displayed for a predetermined time. As a result, it is possible to efficiently and accurately carry out a seal inspection of a bag-making product without requiring much experience.

1 is an overall external view showing an embodiment of a bag-making seal inspection apparatus 100 according to the present invention. It is an external view which shows the state which opened the front door 20 of the bag making seal test | inspection apparatus 100 which concerns on this invention. It is an enlarged view which shows the structure of A part vicinity in FIG. 2 (A). It is an AA line arrow directional view in FIG. It is a BB line arrow directional view in FIG. It is a top view which shows the effect | action of the spray nozzles 90 and 90. FIG. It is a block diagram which shows the structure of the function of the bag making seal test | inspection apparatus 100 which concerns on this invention. It is explanatory drawing which shows the flow of the pressure gas of the bag making seal test | inspection apparatus 100 which concerns on this invention. It is a screen figure which shows the example of an image of the touchscreen type data monitor. It is a screen figure which shows the example of an image of the touchscreen type data monitor. It is a screen figure which shows the example of an image of the touchscreen type data monitor. It is a screen figure which shows the example of an image of the touchscreen type data monitor. It is a screen figure which shows the example of an image of the touchscreen type data monitor. It is a screen figure which shows the example of an image of the touchscreen type data monitor. It is a figure which shows an example of the kind | species data table of the bag making product W used as a test object. It is a flowchart figure which shows the flow of the automatic seal | sticker inspection method by the bag making seal | sticker inspection apparatus 100 which concerns on this invention. FIG. 6 is a plan view showing a state in which a bag-making product W is set on a nozzle body 80. It is a top view which shows the state which sprayed (application | coating) test | inspection liquid from the state of FIG. It is a top view which shows the state which carried out the intermediate spray (application | coating) of the test | inspection liquid from the state of FIG. It is a top view which shows the state which extracted the spray nozzles 90 and 90 from the bag making product W from the state of FIG. It is a top view which shows the state which injected the high voltage | pressure gas in the bag making product W which closed the opening part completely. It is a top view which shows the state which discharged the bag making product W after completion | finish of a seal | sticker inspection from the nozzle body 80. FIG. It is a top view which shows other embodiment of the delivery mechanism of spray nozzle 90,90. It is the front view seen from A direction in FIG. It is a top view which shows the state which sprayed out the spray nozzles 90 and 90 with the delivery apparatus 94a of FIG. It is a top view which shows the state which opened the spray nozzles 90 and 90 from the state of FIG.

  Next, embodiments of the present invention will be described with reference to the accompanying drawings. 1A and 1B are external views showing an embodiment of a bag-making seal inspection apparatus 100 according to the present invention. FIG. 1A is a front view thereof, and FIG. 1B is a left side view thereof. As shown in the figure, this bag-making seal inspection apparatus 100 has a box-shaped casing 10 whose periphery is partitioned by a steel plate or the like, and an openable front door 20 is provided in the upper half of the casing 10. An opening 30, an operation panel 40, and a data monitor 50 are provided.

  Further, casters 11, 11, 11, and 11 and adjusters 12, 12, 12, and 12 are provided at the bottom four corners of the casing 10, respectively, so that the casters 11, 11, 11, and 11 can be easily moved. At the same time, the casing 10 can be installed in an arbitrary position by extending the screws of the adjusters 12, 12, 12, and 12.

  In addition, a power plug 13, an air coupler 14, and a foot pedal 15 connected to the internal devices are provided at the bottom of the housing 10 so as to extend. The power plug 13 and the air coupler 14 are detachable from an outlet (not shown) installed indoors and a pressure gas supply source (not shown) such as a compressor. Is used in seal inspection work described later. A warning lamp 10a is erected on the upper portion of the housing 10, and the state is notified by lighting or blinking of a colored lamp.

  The front door 20 has a structure in which a transparent reinforced plastic 22 is fitted into a rectangular frame 21 raised in a mountain shape as shown in FIG. 2, and the inside of the housing 10 can be easily viewed from the outside with the opening 30 closed. Can be visually recognized. The front door 20 is fitted with a pair of rails 31, 31 provided on both sides of the rectangular frame 21 vertically along both sides of the opening 30. Then, the inspector holds the handle 23 provided at the lower end of the rectangular frame 21 and slides the entire front door 20 along the rails 31 and 31 to open the opening 30 as shown in FIG. It can be opened and closed arbitrarily. The front door 20 is provided with a damper mechanism (not shown) so that it can be opened and closed with a light force, and even if the hand is released from the front door 20 with the opening 30 fully opened as shown in FIG. The state can be maintained without falling.

  The operation panel 40 includes a power lamp, a manual cock, a door in addition to various operation switches required for performing basic operations such as a power switch, an emergency stop switch, a start switch, a reset switch, and a stop / return switch. Open / close buttons, pressure meters, etc. are provided.

  The data monitor 50 is composed of a touch panel type liquid crystal monitor having a transparent touch panel on the screen, and includes various operation buttons, detection data, a selection screen, an input screen, and the like as shown in FIGS. The display is switched as appropriate. The screen examples shown in FIGS. 9 to 14 displayed on the data monitor 50 will be described in detail later.

  FIG. 3 is an enlarged view of a portion A in FIG. 2A, that is, an internal structure of the housing 10 viewed from the opening 30 side, and FIG. 4 is a view taken along the line AA in FIG. . As shown in the drawing, the lower surface side in the opening 30 is partitioned by a rectangular discharge table 60 made of a metal plate having a large number of holes.

  As shown in FIGS. 3 and 4, the discharge table 60 has one side portion on the back side hinged to the intermediate frame 16 in the housing 10 and extends from the intermediate frame 16 to the side portion. The expansion / contraction end of the air cylinder 61 is pin-coupled. Then, as shown in FIGS. 4A and 4B, by extending and contracting the air cylinder 61, the discharge table 60 can be rotated from the horizontal state toward the lower side of the housing 10 with the hinge portion 62 as an axis. It has become.

  In addition, a space is formed in the lower part of the discharge table 60, and a discharge box 41 is accommodated in the space as shown in FIG. As will be described later, the discharge box 41 is for storing and discharging the bag-made product W after the inspection, and as shown in the figure, the discharge box 41 is opened from the outlet 17 formed below the opening 30. It can be taken out of the body 10.

  Further, as shown in FIGS. 3 and 4, a pressing mechanism 70 for gripping the opening of the bag making product W is provided on the back side of the discharge table 40 as will be described later. The pressing mechanism 70 includes a pressing receiver 71 fixed on the intermediate frame 16, a pressing body 72 positioned on the pressing receiver 71, an air cylinder 73 for temporary pressing, and a main pressing (for pressing). The air cylinders 74 and 74 are mainly configured.

  Each of the press receiving body 71 and the pressing body 72 is formed as a highly rigid and elongated block body (press bar) using a high strength material such as a metal material. The upper portion of the pressing body 72 is supported by an air cylinder 73 that serves as a temporary pressing actuator, and both ends thereof are supported by air cylinders 74 and 74 that serve as main pressing actuators. Has been. The air cylinder 73 for temporary pressing and the air cylinders 74 and 74 for main pressing are attached to the upper frame 18 in the upper part of the housing 10 integrated with the intermediate frame 16.

  The temporary pressing air cylinder 73 and the main pressing air cylinders 74 and 74 both have a function of moving the pressing body 72 up and down by expanding and contracting in the vertical direction by gas pressure. The air cylinder 73 presses the pressing body 72 against the pressure receiving body 71 side with a low pressure enough to raise and lower the pressing body 72 (temporary pressing), whereas the air cylinder 74 for main pressing (for pressing). , 74 presses the pressing body 72 against the press receiving body 71 with a pressure high enough to completely close (seal) the opening of the bag-made product W at the time of seal inspection as will be described later (main presser). )

  Further, a sealing elastic layer 71 a and an elastic layer 72 a are provided on the pressing surface of the pressing body 71 and the pressing surface of the pressing body 72, respectively. These elastic layers 71a and 72a are both made of a highly elastic material such as a rubber material. In this embodiment, the elastic layer 72a of the pressing body 72 is made of a slightly hard rubber material. The elastic layer 71a of the press receiver 71 is formed of a rubber material that is softer than the elastic layer 72a. Further, the central portions of the pressing surface of the pressing body 72 and the pressing receiving surface of the pressing receiver 73 are slightly curved, so that a space capable of accommodating the nozzle body 80 described below is formed. ing.

  A nozzle body 80 and a pair of spray nozzles 90 and 90 are located between the pressure receiving body 71 and the pressure body 72. The nozzle body 80 is formed as a high-rigidity block body using a material having high strength such as a metal material. Further, as described later, a bag to be inspected made by the pressing body 72 and the pressing receiver 71 is formed. It has an outer shape for facilitating the holding and sealing of the opening of the product W. In the present embodiment, as shown in FIG. 3 and FIG. 5 and the like, it is formed in a long oval shape as a shape for easily holding or sealing the opening of the bag-made product W.

  The nozzle body 80 has a function of injecting high-pressure gas from the opening into the bag-making product W to be inspected sandwiched between the press receiving body 71 and the pressing body 72 and exhausting the gas after the seal inspection. . For this purpose, the nozzle body 80 is provided with a pressure gas inlet 81 and a pressure gas outlet 82. Both the pressure gas inlet 81 and the pressure gas exhaust 82 are formed by an elongated pipe body that penetrates the nozzle body 80 in the axial direction, and the front end thereof is open to the front portion of the nozzle body 80. ing.

  As shown in FIG. 5, a pressure gas injection pipe 84 is connected to the pressure gas injection port 81, and high pressure gas can be supplied through the pressure gas injection pipe 84. On the other hand, a pressure gas exhaust pipe 83 is connected to the pressure gas exhaust port 82, and the pressure gas in the bag-made product W after inspection is exhausted to the outside through the pressure gas exhaust pipe 83. It has become.

  On the other hand, the spray nozzles 90, 90 are positioned in parallel at a predetermined distance on both the left and right sides of the nozzle body 80. The spray nozzles 90, 90 are made of a metal pipe or the like, and spray (spray) the inspection liquid on the inner surface of the bag-making product W to be inspected sandwiched between the press receiving body 71 and the pressing body 72 from the tip. It is designed to be applied.

  As shown in FIG. 5, the spray nozzles 90, 90 are provided on a nozzle cradle 91 located on the back side of the press receiver 71 via rotating members 92, 92. The nozzle cradle 91 is composed of a horizontally long cradle main body 93 positioned substantially parallel to the press receiver 71, and a feed mechanism 94 provided at one end of the cradle main body 93.

  The underside of the cradle body 93 is fitted with a pair of rails 93a and 93a extending in parallel with each other in the direction of the press receiving body 71, and close to the direction of the press receiving body 71 along the rails 93a and 93a. The slide can be moved freely. On the other hand, the delivery mechanism 94 includes a ball screw 95 positioned in parallel with the rails 93a and 93a, and a drive motor 96 that rotationally drives the ball screw 95.

  Then, by rotating the screw portion 95a of the ball screw 95 in one direction by this drive motor 96, the receiving body 93 connected to the nut portion 95b is sent out in the direction of the press receiving body 71 as shown in FIG. By rotating the screw portion 95 in the opposite direction, the cradle body 93 is reciprocated away from the press receiver 71.

  The rotating members 92 and 92 provided with the spray nozzles 90 and 90 are pivotally supported on the nozzle base 91 so as to be rotatable about the center thereof. In addition, at the part of the outer periphery, the expansion / contraction end portions of the nozzle air cylinders 97 and 97 similarly provided on the nozzle support 91 are pivotally supported, and as the nozzle air cylinders 97 and 97 expand and contract, As the rotating members 92 and 92 are rotated, the spray nozzles 90 and 90 are pivoted outward at a predetermined angle so that the tips of the spray nozzles 90 and 90 are separated from the nozzle body 80 as shown in FIG. Yes.

  Further, as shown in FIG. 8, the spray nozzles 90 and 90 are provided with test liquid spray cans 98 and 98 via flexible tubes (not shown), respectively. The inspection liquid in the cans 98, 98 is supplied to the spray nozzles 90, 90 via a flexible tube (not shown).

  As the test solution spray can 98, a commercially available product having a press-down spray nozzle 98b on the upper portion of the spray can main body 98a can be used. For example, azo oil-soluble dyes, high-boiling esters, mineral oils, vegetable oils and the like are mainly used. “Ageless (registered trademark) seal check spray” manufactured by Mitsubishi Gas Chemical Co., Ltd. with dimethyl ether as a component gas can be used as it is.

  The pedestal 99b on which the test solution spray can 98 is placed is pushed up by an air cylinder 99a for spraying which becomes the actuator 99, and the upper part of the spray nozzle 98b of the spray can main body 98a is pressed against the fixed portion 99c. The filled inspection liquid is ejected and supplied to the spray nozzle 90. If the pedestal 99b on which the inspection liquid spray can 98 is placed is lowered by an air cylinder 99a for spraying, the spray nozzle 98b of the spray can main body 98a is also returned to the original state, and the supply of the inspection liquid is automatically stopped. It has become.

  FIG. 7 is a block diagram showing a functional configuration of the bag-making seal inspection apparatus 100. As shown in the figure, this bag making seal inspection apparatus 100 is controlled by a control unit 51 including an information processing apparatus having a CPU, a RAM, a ROM, and the like according to inputs from a touch panel data monitor 50, an operation panel 40, a foot switch, and the like. The storage unit 52, the bag making pressing unit 53, the inspection liquid application unit 54, the pressure gas injection unit 55, the seal inspection unit 56, the bag making discharge unit 57, and the like are controlled. A specific control method by the control unit 51 will be described later.

  FIG. 8 is a system diagram showing the flow of the pressure gas in the bag making seal inspection apparatus 100. As shown in the figure, the pressure gas (high pressure air) supplied from the high pressure gas supply source via the coupler 14 is sent to the main valve 86 via the pressure switch 85, where the pressing body 72 is moved up and down. The air cylinder 73, the main holding air cylinder 74, the discharge table 60, the air cylinder 61 for turning, the nozzle air cylinders 97, 97, the spraying air cylinders 99a, 99a, etc. are used as drive sources for driving these. It has come to be.

  The pressure gas supplied from the high-pressure gas supply source is sent from the main valve 86 to the nozzle body 80 from the gas injection pipe 84 via the pressure gas supply line L1, and used as the inspection gas in the bag making product W. It is supposed to be. The pressure gas supply line L1 is provided with a check valve 84a and a regulator 84b to prevent backflow of the pressure gas and to adjust the pressure of the pressure gas during manual inspection.

  On the other hand, a pressure gas exhaust line L2 is connected to the pressure gas exhaust pipe 83 side of the nozzle body 80. The pressure gas exhaust line L2 includes a pressure gauge 83a that measures the pressure in the pressure gas exhaust pipe 83, that is, the pressure in the bag-making product W, and an electromagnetic that controls the gas flow in the pressure gas exhaust line L2. A valve 83b and a filter 83c for filtering the exhaust gas are connected in order.

  Next, FIG. 9 to FIG. 14 show examples of images displayed on the liquid crystal screen of the touch panel type data monitor 50. First, FIG. 9 is an image example of the initial screen before the start of inspection, and a measurement result display area 50b in which pressure and time are plotted is displayed at the center of the screen as a display unit, and the measurement state is shown in the upper right. A character display area 50a (stopped) is displayed. Further, below the measurement result display area 50b, an input unit including four button-like GUIs (graphic user interfaces) 50c, 50d, 50e, and 50f serving as input units is displayed.

  Of these four button-like GUIs 50c, 50d, 50e, 50f, for example, when the second button-like GUI 50c from the left is touched with a finger, the display changes from “intermediate application ON” to “intermediate application” as shown in FIG. When the button changes to “OFF” and the rightmost button-like GUI 50f is touched with a finger, the display changes from “manual” to “automatic”. By inputting from these four button-like GUIs 50c, 50d, 50e, and 50f, the inspection conditions can be set in detail in a seal inspection as will be described later.

  Next, FIG. 11 shows an example of an image during the seal inspection. The character 50a indicating the measurement state is changed to “under measurement” and the pressure actually measured in the measurement result display area 50b. The measurement result indicating the relationship between time and time is displayed in real time. This measurement result can be recorded in a storage unit (recording medium) 52 such as an SD card as shown in FIG.

  FIG. 12 shows an example of an image displayed when the button-like GUI 50c (setting) at the left end shown in FIG. 9 is shaken with a finger. When a button is touched on the button-like GUI 50c (setting) in FIG. 9, as shown in FIG. 12, a screen displaying a button-like GUI 50g for changing the type of the bag making product W to be inspected and a button-like GUI 50h for changing the type Switch to

Further, when the type-switching button-like GUI 50g is touched with a finger, a screen as shown in FIG. 13 is displayed, and when the type-switching button-like GUI 50h is touched with a finger, the screen is switched as shown in FIG. It has become. The screen of FIG. 13 displays “Measurement No (product type)” and “application time”, “pressure”, and “measurement time” corresponding thereto. In the example of the figure, “Measurement No (product type)” is “2”, the “application time” of the corresponding test solution is “1.0 second”, and the inspection “pressure” is “0.2 kgf / cm ² ( 0.02 MPa) ”and“ measurement time ”are“ 60.0 seconds ”.

  The “measurement No. (product type)” and the “application time”, “pressure”, and “measurement time” corresponding thereto are recorded in advance in the control unit 51 or the storage unit 52 as a table-type database, for example, as shown in FIG. Thus, the inspector can refer to this table and select the type of bag-making product W to be inspected, that is, “Measurement No”, and can inspect the bag-making product W under optimum conditions. ing. In the screen shown in FIG. 13, when a finger touches the position of “Measurement No”, this portion is activated and a numeric keypad-like numeric screen is displayed. Any number (measurement number) can be selected simply by touching with a finger.

  After switching “measurement No. (product type)”, when the button-like GUI 50i (return) at the lower right of the screen as an input unit is touched with a finger, the screen is switched to the initial screen. On the other hand, the screen of FIG. 14 is an example of a product type setting screen. When a new product type is registered, the “measurement number (product type)” and the “application time”, “pressure”, and “measurement time” corresponding thereto are displayed. An inspector etc. can register by touching the position of "" with a finger.

  The registered “measurement No. (product type)” is registered in the table type database as shown in FIG. 15, and thereafter, the screen is switched to the registered product type by switching to the screen of FIG. In the example shown in the figure, a button-type GUI 50j for product type registration is displayed at the lower left of the screen. Therefore, after setting the product type, it is possible to register simply by touching the button-like GUI 50j with a finger. ing.

  Next, an inspection method using the bag-making seal inspection apparatus 100 according to the present invention having such a configuration will be described with reference mainly to the flowchart of FIG. 16 and the explanatory diagrams of FIGS. . FIG. 16 shows the flow of control by the control unit 51 of the device 100 of the present invention. First, when the power is turned on (turned on) in the first step S100, the control unit 51 of the device 100 of the present invention performs a system check, and if there is an abnormality, turns on or blinks the warning lamp 10a to notify the abnormality, On the contrary, if there is no abnormality, the process proceeds to the next step S102.

  In step S102, it is determined whether or not the foot switch 15 has been stepped on (switch-on). If it is determined that the foot switch 15 has been stepped on (YES), the process proceeds to the next step S104 to lower the pressing body 72. As shown in FIG. 17, the bag making product W is temporarily pressed.

  That is, in order to perform a seal inspection of the bag-made product W, first, an inspector manually opens the front door 30, widens the opening of the bag-making product W to be inspected, and the opening protrudes from the nozzle body 80. The opening is set between the pressure receiving body 71 and the pressure body 72 so as to cover the pair of spray nozzles 90, 90.

  In this state, when the inspector steps on the foot switch 15, the temporarily pressing air cylinder 73 is extended, the pressing body 72 is lowered, and the opening of the bag-making product W is formed by the pressing receiver 71 and the pressing body 72. It is lightly clamped and temporarily pressed (held). In the present embodiment, the bag-made product W having the chuck W1 at the opening is the inspection target. Further, when the front door 30 is closed after the temporary pressing, the temporary pressing state is continued even if the foot switch 15 is released and the switch is turned off.

  Next, the control unit 51 proceeds to the next step S106 to determine whether or not the seal inspection of the temporarily made bag product W is performed in the automatic inspection mode (manual mode). That is, since the inspector selects the inspection mode on the liquid crystal screen of the touch panel type data monitor 50 after the temporary pressing, the control unit 51 determines whether or not the automatic inspection mode is selected by this operation. When it is determined that the automatic inspection mode has not been selected (NO), the process proceeds to the manual inspection mode described later. When it is determined that the automatic inspection mode has been selected (YES), the process proceeds to the next step S108. .

  In step S108, it is determined whether or not the test solution is to be applied. When it is determined that the test solution is not applied (NO), the process jumps to step S118, but when it is determined that the test solution is to be applied (YES), The process proceeds to step S112. That is, as described above, since the inspector selects the presence / absence of the application of the inspection liquid and the presence / absence of the intermediate application together with the inspection mode on the liquid crystal screen of the touch panel type data monitor 50 after the temporary pressing, the control unit 51 determines this. It is determined whether or not the automatic inspection mode is selected by the operation.

  In step S112, as shown in FIG. 18, the spray nozzles 90 and 90 are expanded so that the inspection liquid can sufficiently reach the corners of the inner bottom surface of the bag-made product W, and then from the tips of the spray nozzles 90 and 90. The inspection liquid is applied (sprayed) to the bottom of the bag-making product W, and the process proceeds to the next step S114. Here, the application time is automatically determined according to a preset product type as shown in FIG. In the example of FIG. 13, the inspection liquid is applied (sprayed) from the tip of the spray nozzles 90, 90 to the bottom of the bag-made product W for about 1.0 second.

  In step S114, it is determined whether or not intermediate coating is to be performed, that is, whether or not the test solution is to be applied to the opening side of the bag-making product W. That is, when the bag-made product W to be inspected has the chuck W1 as shown in FIG. 17, there is a possibility that the chuck W1 portion has a sealing failure. In contrast, it is determined whether or not to apply the test solution. As a result, when it is determined that the intermediate application is not performed (NO), the process jumps to step S118, but when it is determined that the intermediate application is performed (YES), the process proceeds to the next step S116.

  In step S116, as shown in FIG. 19, the spray nozzles 90 and 90 are moved back so that the spray nozzles 90 and 90 are widened, and the tips thereof are positioned at both ends of the chuck W1. Apply (spray). Accordingly, the inspection liquid can be sufficiently applied (sprayed) not only to the bottom portion of the bag-made product W but also to the chuck W1 portion.

  Then, in the next step S118, the spray nozzles 90, 90 are further retracted as they are and are completely extracted from the bag making product W as shown in FIG. 20, and the process proceeds to the next step S120. The inspection liquid application process is performed in a state in which the opening is lightly pressed (temporarily pressed) to the extent that the bag-making product W is not removed, so that the spray nozzles 90 and 90 move and move smoothly. Is called.

  In step S120, the air cylinders 74, 74 for main pressing are operated, and the pressing body 72 is strongly pressed against the pressing receiving body 71 so that the opening of the bag-making product W is completely closed (sealed). Then, the process proceeds to the next step S122. In step S <b> 122, high-pressure gas (air) is injected into the bag-making product W from the nozzle body 80. As a result, as shown in FIG. 21, the bag-making product W gradually expands and the internal pressure rises.

  Then, in the next step S124, it is determined whether or not the pressure in the bag making product W has reached the set pressure. When it is determined that the set pressure has not yet been reached (NO), the process proceeds to step S112. Returning, high pressure gas is injected and pressurization is continued, but when it is determined that the set pressure has been reached (NO), the process proceeds to the next step S126 and pressurization by injection of high pressure gas is stopped. In the example of FIG. 13, since the set pressure is 0.2 kgf / cm 2, the pressurization is continued until the pressure in the bag making product W becomes 0.2 kgf / cm 2.

  In the next step S128, the pressure fluctuation in the bag making product W in the state where the pressurization is stopped is measured for a predetermined time, and the measurement result is displayed on the data monitor 50, and the process proceeds to the next step S130. In the example of FIG. 13, measurement is performed for 60 seconds. As shown in FIG. 11, the measurement result is displayed in a graph in the measurement result display area 50b with the relationship between the pressure fluctuation and time. In the example shown in the figure, the set pressure is reached by injecting high-pressure gas for several seconds, and then the fluctuation of the pressure is displayed in seconds.

  In step S130, it is determined whether or not the measurement time has reached the set time. If it is determined that the set time has not been reached (NO), the process returns to step S128 and continues measurement and display. When it is determined that the time has been reached (YES), the process proceeds to the next step S132, and the measurement data is stored in the storage unit 52 or the like. Then, the inspector determines the presence or absence of a sealing failure of the bag-making product W to be inspected based on measurement data such as a change in internal pressure.

  In the next step S134, the electromagnetic valve 83b of the pressure gas exhaust line L2 is opened to slowly exhaust the pressure gas in the bag making product W, and then the process proceeds to the next step S136. In step S136, the air cylinders 74 and 74 for main pressing are raised to release the main pressing and temporary pressing, and the process proceeds to the next step S138.

  In step S138, as shown in FIG. 22, high-pressure air is blown from the nozzle body 80 at a stretch to blow off the inspected bag-making product W, and the process proceeds to the next step S140. Since the bag-making product W discharged from the nozzle body 80 is directly placed on the discharge table 60, in step S140, as shown in FIGS. 4A to 4B, the discharge table 60 is moved downward from the horizontal state. , The bag-making product W is dropped downward and discharged (dropped) into the discharge box 41, and the process proceeds to the next step S142.

  In step S142, the spray nozzles 90, 90 that have returned to the parallel state in parallel with this are advanced and protruded from the press receiver 71 (standby state), and the process proceeds to the last step S142.

  And in last step S142, as shown to (A) from FIG. 4 (B), a series of inspection process is complete | finished by returning the discharge table 60 to a horizontal state. As a result of the inspection, when it is determined that there is a seal failure, the inspector takes out the inspected bag-made product W discharged into the discharge box 41 and specifies the location of the seal failure from the state of the inspection liquid. Since the state can be easily grasped, it is possible to quickly take an appropriate measure by feeding back to the manufacturing process.

  As described above, the present invention can automatically perform the application of the test liquid and the seal test after the bag-making product W to be inspected is held in the apparatus 100, so that a part of the test liquid scatters and works. It is possible to surely avoid adhering to a worker's clothes and soiling the surroundings. In addition, since the seal inspection using the inspection liquid is automatically performed after the bag making product W is set, the seal inspection of the bag making product W is performed efficiently and accurately without requiring much experience. can do.

  The above describes the automatic seal inspection process for bag-making products W whose inspection conditions are determined in advance. However, in the case of bag-making products W whose inspection conditions are not determined, a bag breaking test is first performed in the manual inspection mode. Is done. That is, the bag-making product W to be inspected differs in the type and thickness of the synthetic resin film of the bag-making material according to its use, and the internal pressure applied in the inspection differs accordingly. The internal pressure for inspection is determined as a pressure lower by a certain level than the internal pressure at which the bag-making product W breaks, based on the internal pressure at which the bag-made product W is broken. Therefore, when inspecting a bag-making product with a new specification, a bag breaking test is first performed in the manual inspection mode.

  In order to perform the bag breaking test in the manual inspection mode, the bag body W is put on the nozzle body 80 in the same manner as in the automatic inspection mode, and then the opening is fully pressed to completely close the nozzle body 80. The high pressure gas is injected by, and the internal pressure of the bag making product W is gradually increased. Thereby, when the inside of the bag-making product W reaches the bag breaking internal pressure, the bag-making product W is torn at the seal portion and other portions to break the bag. This broken bag is detected by the pressure sensor 83a as a sudden decrease in the internal pressure, and the internal pressure and the broken bag time are displayed on the data monitor 50. The data is recorded by the recording unit 52. Note that the bag breaking test is performed in the casing 10 whose front door is closed and the periphery is partitioned, so there is no fear that the broken bag pieces will scatter around, but there will be a loud bursting sound. Therefore, it is desirable to carry out the bag breaking test in a state where there are no people around or to warn the surroundings by displaying a predetermined color with a warning light 10a or the like during the bag breaking test.

  If the bag breaking pressure can be grasped by the bag breaking test as described above, the inspection inner pressure, the inspection time, etc. are determined based on the bag breaking pressure and then the type registration is performed as shown in FIG. Thereafter, the seal inspection of the bag product W can be performed in the automatic inspection mode.

  Next, FIGS. 23 to 26 show another embodiment relating to the delivery mechanism of the spray nozzles 90, 90 according to the present invention. In the present embodiment, a pair of spray nozzles 90, 90 described above is caused to appear and disappear on the side of the packaged product W using a single-axis delivery device 94a called a so-called single-axis robot.

  As shown in the figure, the delivery device 94a includes a linear guide 94b extending along the longitudinal direction on the nozzle body 80, and a slider 94c that moves along the linear guide 94b. The slider 94c is engaged with a ball screw 94e provided in the linear guide 94b or a timing belt (not shown), and the ball screw 94e is connected to an AC servo motor 94d and a gear portion provided at the end of the linear guide 94b. The slider 94c can be reciprocated along the linear guide 94b by being driven to rotate forward and backward by 94f. As the delivery device 94a, for example, a single axis robot (commercially available) manufactured by IAI Corporation can be used.

  Brackets 94g and 94g are provided on both sides of the slider 94c, and air actuators 94h and 94h are provided on the brackets 94g and 94g, respectively. The movable parts of the air actuators 94h and 94h are provided with the above-described spray nozzles 90 and 90, respectively. The movable parts moved by the air actuators 94h and 94h move horizontally in the horizontal direction around the brackets 94g and 94g. It can be rotated at a predetermined angle. As the air actuator 94h, for example, an air cylinder (commercial product) manufactured by SMC Corporation can be used.

  A plate-like nozzle guide 90a is provided at the tip of the linear guide 94b of the delivery device 94a so as to cover it. As shown in FIGS. 23 and 24, the nozzle guide 90a is formed with a horizontally long passage hole 90b and slits 90c and 91c extending horizontally from both sides of the passage hole 90b. The nozzle body 80 is positioned so as to pass through the passage hole 90b, and the spray nozzles 90 and 90 pass through the slits 90c and 91c, respectively.

  The spray nozzles 90, 90 are provided with test solution spray cans 98, 98 via flexible tubes (not shown), respectively, as in the above-described embodiment. The inspection liquid in 98 is supplied through a flexible tube (not shown). Further, the AC servo motor 94d and the pneumatic actuators 94h and 94h of the sending device 94a are also controlled at a predetermined timing as shown in FIGS. It is controlled to work.

  That is, as shown in FIG. 25, when applying the test solution, the AC servo motor 94d is driven to move the slider 94c to the tip of the linear guide 94b, thereby moving the spray nozzles 90, 90 forward of the pressing body 71. Can be moved to. Then, from this state, as shown in FIG. 26, the air actuators 94h and 94h are driven to rotate so that the tips of the spray nozzles 90 and 90 are opened, so that the spray can be immediately made possible. Thereafter, as described above, the slider 94c is slowly moved back to the original position while the inspection liquid is ejected from the spray nozzles 90, 90.

  In this embodiment using such a uniaxial delivery device 94a, the test solution can be applied evenly in the wrapped product W as in the above embodiment, and of course, it has a uniaxial structure. Therefore, the movement becomes smooth and stable movement can be expected. In addition, since it is a single-axis robot, fine operation control is possible, and the movement can be easily set according to the size of the bag product W. Furthermore, since the size can be reduced, it can be installed in a narrow space. Further, in this embodiment, since the nozzle guide 90a having the slits 90c and 91c is provided at the tip of the linear guide 94b of the delivery device 94a, the movement of the spray nozzles 90 and 90 in the left-right direction (opening and closing direction) is controlled. While allowing, the movement in the vertical direction can be restricted. For this reason, it can prevent reliably that the front-end | tip of the spray nozzles 90 and 90 shakes up and down largely.

  The bag-making product holding means in the bag-making seal inspection apparatus described in the means for solving the above-mentioned problems is, for example, the pressing body 71 and its elastic layers 71a and 72a, the pressing receiver 72, and the temporary presser in the present embodiment. This corresponds to the air cylinder 73 for use. Similarly, the test liquid application means corresponds to, for example, the spray nozzle 90, the feed mechanism 94, the feed device 94a, the test liquid spray can 98, the actuator 99, and the like. Similarly, the gas injection means corresponds to, for example, the nozzle body 80, the pressure gas injection port 81, the pressure gas injection pipe 84, the check valve 84a, the pressure gas supply line L1, the main valve 86, and the like.

  Similarly, the inspection condition setting means corresponds to, for example, the touch panel data monitor 50, and the pressure detection means corresponds to, for example, a pressure gauge 83a provided in the pressure gas exhaust line L2. Further, the display means corresponds to the touch panel type data monitor 50, for example. The bag-making product discharge means corresponds to, for example, the discharge table 60, the discharge table air cylinder 61, and the like.

DESCRIPTION OF SYMBOLS 100 ... Bag-making seal apparatus 10 ... Housing | casing 10a ... Warning light 11 ... Caster 12 ... Adjuster 13 ... Power plug 14 ... Air coupler 15 ... Foot pedal 16 ... Frame in housing | casing 17 ... Outlet 18 ... Upper frame of housing | casing 20 ... Front Door 21 ... Rectangular frame
22 ... Transparent reinforced plastic 23 ... Handle 30 ... Opening 31 ... Rail 40 ... Operation panel 41 ... Discharge box 50 ... Touch panel data monitor 50a ... Character display area 50b ... Measurement result display area 50c, 50d, 50e, 50f, 50g, 50h, 50i, 50j ... Button-like GUI
DESCRIPTION OF SYMBOLS 51 ... Control part 52 ... Memory | storage part 53 ... Bag making press part 54 ... Inspection liquid application part 55 ... Pressure gas injection part 56 ... Seal inspection part 57 ... Bag making discharge part 60 ... Discharge table 61 ... Air cylinder for discharge table
62 ... Hinge part 70 ... Pressing mechanism 70
DESCRIPTION OF SYMBOLS 71 ... Press body 71a ... Elastic layer 72 ... Press receiving body 72a ... Elastic layer 73 ... Temporary pressing air cylinder 74 ... Main pressing air cylinder 80 ... Nozzle body 81 ... Pressure gas injection port 82 ... Pressure gas exhaust port 83 ... Pressure Gas exhaust piping 83a ... Pressure gauge 83b ... Electromagnetic valve 83c ... Filter 84 ... Pressure gas injection piping 84a ... Check valve 84b ... Regulator 85 ... Pressure switch 86 ... Main valve 87 ... Filter 90 ... Spray nozzle 92 ... Rotating member ( Moving mechanism)
93 ... Receiving body 93a ... Rail 94 ... Delivery mechanism 94a ... Delivery device 94b ... Linear guide 94c ... Slider 94e ... Ball screw 94f ... Gear part 94g ... Bracket 94h ... Air actuator (movement mechanism)
95 ... Ball screw 95a ... Screw part 95b ... Nut part 96 ... Drive motor 97 ... Nozzle air cylinder (moving mechanism)
98 ... Test solution spray can 98a ... Spray can body 98b ... Spray nozzle 99 ... Actuator 99a ... Spray air cylinder 99b ... Base 99c ... Fixed part L1 ... Pressure gas supply line L2 ... Pressure gas exhaust line W ... Bag making product W1 ... Chuck

Claims (15)

A bag-making product holding means for holding a bag-making product to be inspected;
A test liquid application means for applying a test liquid to the inside of the bag-made product held by the bag-made product holding means;
A pressure gas injection means that closes an opening of the bag-made product on which the inspection liquid is applied on the inside by the inspection liquid application means, injects a predetermined pressure of gas therein, and holds the predetermined time;
Inspection condition setting means for setting the pressure of the gas injected from the pressure gas injection means and the inspection time;
Pressure detecting means for detecting a pressure in the bag-making product into which a predetermined pressure of gas is injected by the pressure gas injecting means;
A bag making seal inspection apparatus comprising: a display means for displaying a pressure in the bag making product detected by the pressure detecting means and a change thereof. In the bag-making seal inspection device according to claim 1,
The test liquid application means includes
A bag-making seal inspection apparatus, wherein the inspection liquid is applied at least near the bottom of the bag-making product and near the opening. In the bag-making seal inspection device according to claim 1 or 2,
The test liquid application means includes
At least one spray nozzle that can be inserted into and removed from the opening in the bag-making product;
A test liquid spray can for supplying a test liquid to the spray nozzle;
And an actuator for controlling the supply of the inspection liquid from the inspection liquid spray can. In the bag-making seal inspection device according to claim 3,
Two spray nozzles are provided in the width direction of the opening of the bag making product. In the bag-making seal inspection device according to claim 4,
A bag-making seal inspection apparatus, wherein the inspection liquid spray can is provided for each spray nozzle. In the bag-making seal inspection device according to claim 3,
The test liquid application means includes
A delivery mechanism for inserting and removing the spray nozzle from an opening in the bag-making product;
A bag-making seal inspection apparatus, comprising: a moving mechanism that moves a tip of the spray nozzle to a corner in the bag-making product. In the bag-making seal inspection apparatus according to any one of claims 1 to 6,
The pressure gas injection means includes
A pressure gas supply source for supplying a gas having a pressure set by the inspection condition setting means;
A nozzle body for injecting gas supplied from the pressure gas supply source into the opening of the bag-making product;
A bag-making seal inspection comprising: a pressing body that presses the opening from both sides and closes the opening while the nozzle body faces the opening of the bag-making product; apparatus. In the bag-making seal inspection device according to claim 7,
The pressing body is
An actuator for approaching and separating the pressing body from the pressing receiver side;
A bag-making seal inspection device comprising a foot-operated switch for controlling the operation of the actuator. In the bag-making seal inspection device according to any one of claims 1 to 8,
The inspection condition setting means includes
A storage unit storing data defining the inspection conditions for each bag-making product to be inspected, and an input unit for inputting the type of the bag-making product to be inspected,
The bag making is characterized in that the gas pressure supplied from the pressure gas injection means and the inspection time are set based on the data stored in the storage unit corresponding to the type of the bag making product input at the input unit. Seal inspection device. In the bag-making seal inspection device according to any one of claims 1 to 9,
A bag-making seal inspection apparatus, wherein at least the bag-making product holding means, the inspection liquid application means, and the pressure gas injection means are provided in a casing having a front door that can be freely opened and closed. In the bag-making seal inspection device according to claim 10,
A bag-making seal inspection apparatus comprising bag-making product discharge means for discharging the bag-made product after inspection, below the pressure gas injection means. The bag-making seal inspection device according to claim 11,
The bag-making product discharging means is:
A discharge table that partitions a lower surface side in the housing;
A bag-making seal inspection device comprising: a turning actuator for turning the discharge table downward. In the bag-making seal inspection apparatus according to any one of claims 1 to 12,
The bag-making seal inspection device, wherein the inspection condition setting means and the display means comprise a touch panel type liquid crystal monitor. A bag making product holding process for holding a bag making product to be inspected;
A test liquid application process for applying a test liquid to the inside of the bag-making product held in the bag-making product holding process;
A pressure gas injection step of closing the opening of the bag-making product coated with the inspection liquid on the inside by the inspection liquid application step and injecting a predetermined pressure of gas therein to hold it for a predetermined time;
An inspection condition setting step for setting the pressure and inspection time of the gas injected in the pressure gas injection step;
A pressure detection step of detecting a pressure in the bag-making product into which a predetermined pressure of gas has been injected in the pressure gas injection step;
A bag making seal inspection method, comprising: a display step for displaying a pressure in the bag making product detected in the pressure detecting step and a change thereof. The bag-making seal inspection method according to claim 14,
The inspection liquid application step includes
A bag-making seal inspection method, wherein the inspection liquid is applied at least to the bottom of the bag-making product and the vicinity of the opening.

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