JP2007210614A - Bag body feeder and automatic packaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bag body feeder capable of reliably delivering a bag body while keeping a predetermined posture when delivering the bag body to a chuck unit attached to a rotary table. <P>SOLUTION: When the bag body A is fed to the chuck unit attached to the rotary table, the bag body A is placed on a placement plate, and its side portion is held by a frame body. When a working plate is advanced in a state arranged between the bag body A and a back side part of the frame body, a front side part of the frame body is pressed via the bag body A, the frame body is turned so as to disengage the bag body A, and the bag body A is pushed toward the chuck unit. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a bag supply device and an automatic packaging device, for example, a bag supply device for supplying a bag to a chuck unit that is attached to a rotary table that rotates intermittently and grips the bag, and The present invention relates to an automatic packaging apparatus that grips a bag body by a plurality of chuck units, transfers the bag body by rotation of a rotary table, and packs contents into the bag body or seals the mouth of the bag body.

2. Description of the Related Art Conventionally, automatic packaging apparatuses that fill bags with contents such as pharmaceuticals and foods and seal (seal) the mouth of the bags have been used.
This automatic wrapping apparatus includes an intermittent rotary table to which a plurality of holding claws for holding a bag body are mounted, and the intermittent rotary table rotates intermittently, and each holding claw moves to move the bag body supply unit, the bag Stop at the body opening part / content filling part, bag body sealing part, printing part / bag discharging part (station) in sequence, supply the bag, fill the bag, Sealing of the mouth portion of the bag body, and printing and discharging to the bag body are performed (for example, see Patent Document 1, Patent Document 2, etc.).
That is, the bag body supplied from the bag body supply unit is held by the holding claws, intermittently circulates, and for each station to be stopped, the opening of the bag body and the filling of the contents, the mouth of the bag body The seal and the bag are printed sequentially and discharged.
Japanese Patent Laid-Open No. 5-193764 JP-A-6-199317

  The problem to be solved is that when the bag body is delivered to the chuck unit attached to the rotary table by the automatic packaging device, it cannot be delivered in a state where the predetermined posture is securely maintained, and in the worst case In other words, the gripping of the bag body by the chuck unit may fail.

  The present invention has been made in view of the above circumstances, and when delivering a bag body to a chuck unit attached to a rotary table, the bag body supply apparatus can reliably deliver it while maintaining a predetermined posture. And to provide an automatic packaging device.

  In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that the packaging bag body is grasped one by one from a bundle of packaging bag bodies, the mouth of the packaging bag body is widened, and the packaging bag body is opened. A bag body storage section for storing the packaging bag body, which is used in an automatic packaging apparatus for filling the contents from the mouth of the bag body and then sealing the mouth of the packaging bag body to complete the packaging of the contents. And a bag body take-out means for taking out the packaging bag body from the bag body storage unit, a bag body carrying means for carrying the taken-out packaging bag body, and the packaging bag body that has been carried, The present invention relates to a bag body supply device comprising a bag body delivery means for delivering to a chuck unit for gripping and transferring the packaging bag body, wherein the bag body delivery means holds at least both sides of the packaging bag body. In addition, each has a substantially groove-shaped cross section that can be rotated around a predetermined rotation axis. A pair of support frames, a placement plate for placing the packaging bag body in an upright state, and a pair of pushers for pushing out the packaging bag body toward the chuck unit disposed opposite to the bag body delivery means. An operation plate, and an extrusion driving means for moving the operation plate forward or backward, and the operation plate moves forward from a state where it is disposed between the packaging bag body and the back surface of the support frame body, The support frame rotates so that the front portion of the support frame is pressed through the packaging bag to release the packaging bag, and the packaging bag maintains the upright state. And the operation plate is pushed out of the packaging bag body and then retracted, whereby the back portion of the support frame body is pressed and the support frame body rotates. The packaging bag body from the bag body conveying means It is characterized by being configured to return to receive and support a state capable.

  Further, the invention according to claim 2 relates to the bag body supply device according to claim 1, wherein the pair of support frame bodies are capable of rotating about a predetermined rotation axis via hinge means. It is characterized by being attached to the holding body.

  The invention according to claim 3 relates to the bag body supply device according to claim 2, further comprising a width adjusting means for adjusting a distance between the pair of support frame bodies, wherein the width adjusting means has an axial center. Are attached in common, a right male screw is formed on one side, a left male screw is formed on the other side, and a mounting shaft portion having a first shaft portion and a second shaft portion is formed. One holding body is screwed to the first shaft portion, the other holding body is screwed to the second shaft portion, and the mounting shaft portion rotates, so that the pair of holding bodies are rotated. The distance between the pair of support frames is adjusted by moving away from or approaching each other.

  The invention according to claim 4 relates to the bag body supply device according to claim 1, 2, or 3, and moves forward or backward together with the pair of operating plates, and pushes and pushes out the central portion of the packaging bag body. An auxiliary operating plate is provided.

  Further, the invention according to claim 5 relates to the bag supply device according to any one of claims 1 to 4, further comprising height adjusting means for adjusting the position along the vertical direction of the mounting plate. It is characterized by having prepared.

  According to a sixth aspect of the present invention, the packaging bag body is grasped one by one from a bundle of packaging bag bodies, the mouth of the packaging bag body is widened, and the contents from the mouth of the packaging bag body In accordance with an automatic wrapping apparatus that seals the mouth of the packaging bag body after the stuffing, and completes the packaging of the contents, a chuck unit that grips the packaging bag body, an intermittent rotational motion, and the chuck A unit is detachably attached, and includes a rotary table for transferring the packaging bag body, and a bag body supply device that delivers the packaging bag body to the chuck unit. The bag supply device according to any one of claims 1 to 5, wherein the packaging body is delivered by being pushed out toward the chuck unit by the bag delivery means. Yes.

  According to the configuration of the present invention, the packaging bag body is placed on the placing plate, the side portion thereof is pressed by the support frame body, and the operation plate is disposed between the packaging bag body and the back surface portion of the support frame body. The support frame rotates so that the front portion of the support frame is pressed through the packaging bag body to release the packaging bag body, and the packaging bag body Is pushed out toward the receiving portion, for example, when the packaging bag is delivered to the chuck unit as the receiving portion, it can be reliably delivered in a state in which a predetermined posture is maintained.

  In addition, the packaging bag body is mounted on the mounting plate, the side portion thereof is pressed by the support frame body, and the operation plate is disposed between the packaging bag body and the back surface portion of the support frame body. By moving forward, the support frame body rotates so that the front surface portion of the support frame body is pressed through the packaging bag body to release the packaging bag body, and the packaging bag body moves over the mounting plate. Since it is pushed out toward the receiving part while moving in an upright state, when delivering the packaging bag body to, for example, the chuck unit as the receiving part, the purpose of reliably delivering it in a state maintaining a predetermined posture has been realized. .

  1 is a front view showing the configuration of an automatic packaging apparatus according to an embodiment of the present invention, FIG. 2 is a side view showing the configuration of the automatic packaging apparatus, and FIG. 3 is a plan view showing the configuration of the automatic packaging apparatus. 4 is a block diagram showing the electrical configuration of the automatic packaging device, FIG. 5 is a plan view showing the configuration of a rotary transfer unit of the automatic packaging device, and FIG. 6 is a bag feeding unit of the automatic packaging device. FIG. 7 is a side view showing the configuration of the bag body delivery portion of the bag supply portion, FIGS. 8 and 9 are sectional views showing the configuration of the bag body delivery portion, and FIG. A flowchart for explaining the operation of the automatic packaging apparatus, and FIGS. 11 and 12 are explanatory views for explaining the operation of the bag delivery section.

The automatic packaging apparatus 1 of this example is used, for example, to fill a packaging bag A with contents such as medicines and foods, and holds the packaging bag A as shown in FIGS. While rotating intermittently while moving, the rotary transfer unit 2 for transferring the packaging bag A along a predetermined circulation path, the chuck driving unit 3 having a plurality of actuators for driving the chuck claws, and the packaging bag A bag supply portion 4 for supplying A, a filling portion 5 for filling the contents in the packaging bag body A whose mouth portion is expanded, and a mouth portion of the packaging bag body A by heat sealing. For example, a seal unit 6, a printing unit 7 that prints, for example, a product name or a production name on the surface of the packaging bag A, and a discharge unit 8 that discharges a product filled with the contents in the packaging bag A , An adsorption mechanism 9 including a vacuum pump, and air constituting an actuator connected to an air (compressed air) generation source Air supply mechanism for supplying air to the cylinder (not shown), and a controller 12 for controlling each component of the apparatus.
In this example, the packaging bag A is a synthetic resin film having a bottom and an open upper end, and is formed of a multilayer film in which a heat seal layer capable of heat fusion is formed on the inner layer. .

As shown in FIGS. 1, 4, and 5, the rotary transfer unit 2 includes four first chuck units 14 ₁ , second chuck units 14 ₂ , and third chuck units for gripping the packaging bag A. 14 and ₃ and the fourth chuck unit 14 ₄ is rotating table (index table) 15 which is worn taken to be placed at equal angular intervals (90 °), around a rotation axis along the rotation table 15 in a vertical direction A rotation driving unit 16 that rotates and a position detection unit 17 that detects the arrangement state of each chuck unit are provided.
The rotary transfer unit 2 grips the packaging bag A while performing intermittent rotation, and performs bag supply, bag port opening and filling, bag port sealing, printing and discharging. As possible, when the intermittent rotation is stopped, the packaging bag A is sequentially and continuously opposed to the bag supply unit 4, the filling unit 5, the seal unit 6, the printing unit 7 and the discharge unit 8, respectively. It is controlled to let you.

The rotation drive unit 16 includes a table drive motor 18 composed of an induction motor having a rotation axis along the horizontal direction, a pair of pulleys for transmitting the rotational movement of the table drive motor 18 via a drive belt, and a horizontal direction. A rotational direction conversion mechanism that converts the rotational motion into a rotational motion along the vertical direction.
The position detection unit 17 includes, for example, three position detection sensors 17a, 17a, and 17a arranged below the rotary table 15.

First chuck unit 14 ₁ of the lower surface of the rotary table 15, the second chuck unit 14 _2, the four positions corresponding to the positions of the third chuck unit 14 ₃ and the fourth chuck unit 14 _4, the position detecting sensor 17a, 17a , 17a, a reflection pattern composed of three light reflecting surfaces / non-light reflecting surfaces is formed.
The reflection pattern differs depending on the first chuck unit 14 ₁ , the second chuck unit 14 ₂ , the third chuck unit 14 _3, and the fourth chuck unit 14 ₄ (arrangement positions thereof). The reflection surface corresponds to each position detection sensor 17a.
Position detecting section 17 corresponds to a combination of the on / off position detection sensor 17a, the first chuck unit 14 _1, the arrangement position of the second chuck unit 14 _2, the third chuck unit 14 ₃ and the fourth chuck unit 14 ₄ A position specifying signal for specifying (position) is sent to the controller unit 12.

First chuck unit 14 _1, as shown in FIG. 5, respectively pivoted about a predetermined rotation axis, a chuck claws 26 _1, 27 ₁ pair of for unleashing grab the packaging bag A , a pair of left and right holders ₂₈ 1, 29 ₁ for holding the chuck claws ₂₆ 1, 27 _1, the distal end is attached via a moveable shaft to a rear end of the chuck claws ₂₆ 1, 27 _1, bag packaging Opening / closing drive rods 37a ₁ , 37b ₁ , 38a ₁ , 38b ₁ for rotating the chuck claws 26 ₁ , 27 ₁ by advancing or retreating with respect to the body A, and suction ports are formed at the tip portions, with the intake passage is formed by forward or backward relative to the packaging bag a, the connecting member 44 _1, 45 ₁ closer together the two holding members 28 _1, 29 ₁ through or away, both Chuck claw 2 It has _1, 27 ₁ of the opening drive shaft portion 46 ₁ for adjusting the spacing between the tips.
Note that the second chuck unit 14 _2, the third chuck unit 14 _3, a fourth chuck unit 14 ₄ is a first chuck unit 14 ₁ and the same configuration is intended to distinguish subscripts. That _indicates that 26 _2, 26 3, 26 _4, etc., it it, the second chuck unit 14 _2, the third chuck unit 14 _3, which is a component of the fourth chuck unit 14 _4.

By advancing against closing driving rod _{37a 1,} 37b _1, 38a 1, 38b ₁ of the packaging bag A, both the chuck jaws ₂₆ 1, 27 ₁ in the direction to be expanded to one another (so that the open state ) rotated, by retracting the opening and closing driving rod _{37a 1,} 37b _1, 38a 1, 38b _1, both the chuck jaws ₂₆ 1, 27 ₁ in the direction to be closed to each other (so that the closed state) is rotated.
By advancing against the opening drive shaft portion 46 ₁ packaging bag A, the connecting member ₄₄ 1, 45 away both holders ₂₈ 1, 29 ₁ through _1, both the chuck jaws ₂₆ 1, 27 ₁ As the distance between the tips of the two increases, the suction port is pressed against the packaging bag A.

Further, by retracting against the opening drive shaft portion 46 ₁ packaging bag A, close together the connecting member ₄₄ 1, 45 ₁ both holders ₂₈ 1 through 29 _1, both the chuck jaws 26 ₁ , together with the shortened distance between the 27 ₁ tip, if the intake gas state, the suction port drawing the packaging bag a. As a result, the mouth of the packaging bag A is expanded.

Chuck drive unit 3 is, for example, when the first chuck unit 14 ₁ is facing the bag feeding portion 4, and the opening and closing driving rod _{37a 1,} 37b _1, 38a 1, 38b ₁ is moved forward and backward, the chuck claws 26 ₁ , a pawl for opening and closing actuator 61 for 27 ₁ to the open state and closed state, for example, the first chuck unit 14 _1, upon facing the filling unit 5, the pair of the chuck pawls ₂₆ 1, 27 ₁ remains closed, i.e., while holding the packaging bag a, with suction section of the filling unit 5, to retract the opening drive shaft portion 46 ₁ while adsorbing the outer surface of the packaging bag a, the chuck jaws 26 _1, and allowed to narrow the spacing between the 27 _1, the opening actuator 62 for causing expanding the mouth of the packaging bag a, for example, when the first chuck unit 14 ₁ is facing the discharge portion 8 Open / close drive rod 7a _1, the _{37b 1,} 38a 1, 38b ₁ is moved forward and backward, and the claw opening and closing actuator 63 for chucking claws ₂₆ 1, 27 ₁ and the open state and closed state, suspended state in the mount 64 It is attached and is roughly configured.
The claw opening / closing actuator 61, the opening actuator 62, and the claw opening / closing actuator 63 each have an air cylinder and a solenoid valve for introducing forward and backward air into the air cylinder. .

As shown in FIG. 6, the bag supply unit 4 includes a bag storage unit 66 in which the packaging bag A is stored, a bag transport unit 67, and a bag delivery unit 68.
The bag housing portion 66 includes a mounting base 71 having a mounting portion 69 whose upper surface is inclined at a predetermined inclination angle (approximately 30 ° in this example) with respect to a horizontal plane, and an attachment fixed to the mounting portion 69. It has a frame 72 and a bag stocker 73 that is detachably attached to the mounting frame 72 and stores a packaging bag A having a predetermined size.
The bag stocker 73 is formed with a storage box body 74 having a rectangular cross section that is stored in a state where the packaging bag bodies A are stacked, and a takeout spacer portion 75 for the suction portion to reciprocate inside.

In addition, an opening 74a for pulling out and taking out the packaging bag A is provided at the bottom of the storage box 74, and the peripheral edge of the packaging bag A is supported by the upper surface of the edge of the opening 74a. Thus, the lowermost packaging bag A adsorbed from the opening 74a is taken out downward.
The bottom of the storage box 74 is inclined with respect to the horizontal plane at an inclination angle substantially the same as the inclination angle of the upper surface of the mounting portion 69, and the packaging bags A are also stacked at this inclination angle. .
The bag stocker 73 is selected and used in advance from a plurality of types corresponding to the types (particularly dimensions) of the packaging bag A.

The bag body transporting part 67 has a bag body take-out part 77 for taking out the packaging bag A from the bottom side of the bag body stocker 73, and a transport path inclined at an inclination angle substantially equal to the inclination angle of the bottom part of the bag body stocker 73. It has the upper conveyance part 78 and the lower conveyance part 79 which sends the packaging bag A to the bag delivery part 68 in a standing state.
The bag body taking-out portion 77 includes a plurality (two in this example) of adsorbing portions 81a and 81b that adsorb predetermined portions of the lowermost packaging bag A of the bag stocker 73, and an adsorbing portion 81a (81b). An adsorption unit driving actuator 82a (82b) attached to the tip for moving the packaging bag A from the bag stocker 73 onto the conveyance path of the upper conveyance unit 78 by moving the adsorption unit 81a (81b) forward or backward; have. The suction unit driving actuators 82a and 82b include an air cylinder and an electromagnetic valve for introducing air for forward (upward) and backward (downward) movement into the air cylinder.

  The upper transport unit 78 includes a roller drive motor 84, a plurality of drive rollers 86 attached to a drive shaft 85 that is rotated by the roller drive motor 84, and a driven roller 88 that is driven via a drive belt 87 that also serves as a transport belt. Is disposed in the vicinity of the boundary between the conveying roller including the lower conveying portion 79, the packaging bag body A is pressed from above by its own weight, and the packaging bag body A is interposed between the driving roller 86 and the driving roller 86. And a presser roller 89 that is sandwiched and sent to the lower conveyance unit 79.

The lower conveyance unit 79 includes, for example, two pairs of feed rollers 94 and a pinch roller 95 that sandwich and send the packaging bag A, a holding frame 97 that holds a movable shaft 96 to which the pinch roller 95 is attached, and a pinch roller 95. A compression spring 98 for pressing against the feed roller 94, a feed motor 101 for rotating the drive shaft 99 to which the lower feed roller 94 is attached, and the drive shaft 99 via the pulley 102 rotate together with the upper feed roller 94. Is attached to the driven shaft 103, two pairs of guide plates 104 for maintaining the posture of the packaging bag body A, and a bag body for detecting the passage of the packaging bag body A comprising a light emitting element and a light receiving element. And a detection sensor 105.
The holding frame 97 is always urged by a compression spring 98 so as to press the pinch roller 95 against the feed roller 94.

As shown in FIG. 7, the bag body delivery section 68 is used to hold both side portions of the packaging bag body A, and a pair of rotatable frame-shaped cross-sectional frames 107, 107 and a frame body 107. The packaging bag body A through the holding rods 109a and the operating rods 111b penetrating through the frame 107. A pair of side actuating plates 112 and 112 and a central actuating plate 113 which push out toward the first chuck unit 14 ₁ (second chuck unit 14 ₂ , third chuck unit 14 ₃ , fourth chuck unit 14 ₄ ) facing each other; , A width adjusting unit 114 for adjusting the distance between the pair of frames 107, 107, a height adjusting unit 115 for adjusting the position of the mounting plate 109 along the vertical direction, and the side operation plates 112, 112. And the central operation plate 11 It presses the first chuck unit 14 ₁ (second chuck unit 14 _2, the third chuck unit 14 _3, a fourth chuck unit 14 ₄₎ bag extrusion actuator for pushing the packaging bag A towards 116.

The bag body pushing actuator 116 has an air cylinder and a solenoid valve for introducing forward and backward air into the air cylinder.
Each frame 107 has side portions 107a, a front portion 107b, and a rear portion 107c joined in a U-shaped cross section, and is provided with tail portions 107d and 107d that protrude outwardly from two portions of the rear portion 107c. It is schematically configured by being attached to the holding body 108 so as to be rotatable around the hinge portion 117.
A stopper 118 for restricting the rotation range of the frame 107 outward (directions away from each other) is attached to the holding body 108.

When the bag body is received, the frame bodies 107 and 107 are arranged so that the front surface portion 107b and the back surface portion 107c are orthogonal to the pressing direction by the side operation plate 112, and the back surface of the side operation plate 112 is the back surface portion 107c. It arrange | positions so that it may contact | abut on the front surface.
The packaging bag A has its front surface pressed against the back surface of the front surface portion 107b, its back surface pressed against the front surface of the side portion operation plate 112, its side portion pressed against the side surface portion 107a, and its bottom portion positioned on the mounting plate. By being placed on 109, it is held in an upright state.

Further, at the time of handing over the bag body, the actuating rods 111a and 111b are displaced by the bag body extruding actuator 116 so that the side operation plate 112 and the central operation plate 113 are moved forward, and the side operation plate 112 is moved to the packaging bag body. The front surface portion 107b of the frame body 107 is pushed and rotated through A, and the packaging bag body A is moved to the chuck claws 26 ₁ , 27 ₁ (26 ₂ , 27 ₂ , 26 ₃ , 27 ₃ , 26 ₄ , 27 ₄ ). Pushing toward the opened first chuck unit 14 ₁ (second chuck unit 14 ₂ , third chuck unit 14 ₃ , fourth chuck unit 14 ₄ ), and immediately after that, the side operation plate 112 and the center operation plate 113 are moved. The side operation plate 112 pushes back and rotates the tail portion 107d of the frame body 107 to return to the original position.

The chuck claws 26 ₁ , 27 ₁ (26 ₂ , 27 ₂ , 26 ₃ , 27 ₃ , 26 ₄ , 27 ₄ ) are closed simultaneously with the retreat of the side operation plate 112 and the central operation plate 113, and a pair of chucks The packaging bag A is gripped by the claws 26 ₁ and 27 ₁ (26 ₂ , 27 ₂ , 26 ₃ , 27 ₃ , 26 ₄ , 27 ₄ ).
The width adjusting portion 114 is joined with a common shaft center, and the holding body mounting shaft 121 having the right male screw portion 121a formed on one side and the left male screw portion 121b formed on the other side, and the holding body mounting shaft 121 are rotated. A knurled handle 122 and a clamp lever 123 as a locking means for stopping the rotation of the holder mounting shaft 121.

One of the pair of holding bodies 108, 108 is screwed to the right male screw portion 121 a, and the other is screwed to the left male screw portion 121 b, and the holding body mounting shaft 121 is positioned at the central portion along its axial direction. The pair of holding bodies 108 and 108 are moved toward or away from each other by rotating clockwise or counterclockwise in a fixed state, and the separation between the pair of frame bodies 107 and 107 is adjusted.
By pulling the clamp lever 123 and turning the knurled handle 122, the distance between the two holding bodies 108 (that is, both the frame bodies 107, 107) is adjusted so that the both frame bodies approach or move away from each other. By separating, the separation between the holding bodies 108 and 108 is locked in an adjusted state.
The height adjusting unit 115 is schematically configured by fixing the mounting plate 109 so as to be movable along the vertical direction.

As shown in FIGS. 2 and 3, the filling unit 5 includes an adsorption unit 131 for adsorbing the outer surface of the packaging bag A and pulling it outward along a direction perpendicular to one outer surface. And a suction portion driving actuator 132 for moving the portion 131 forward or backward. The filling unit 5 is connected to a counting device 133 that counts and supplies the contents.
As shown in FIGS. 1 and 3, the seal unit 6 wraps a pair of crimping heads 135, 135 including a heater 134 that sandwiches the upper portions of both outer surfaces of the packaging bag A and thermocompression-bonds, and the crimping head 135. There are pressure-bonding head driving actuators 136 and 136 that move forward or backward with respect to the outer surface of the bag A, and a temperature sensor 137.

As shown in FIGS. 2 and 3, the printing unit 7 includes a printer 139 made of, for example, an ink jet printer, and a print having a backup plate 141 that presses the back side (the center side of the rotary table 15) of the packaging bag A. A unit 142, a backup drive actuator 143 that drives the backup plate 141, and a printer drive actuator 144 that drives the printer 139 are roughly configured.
The discharge portion 8 has chuck claws 26 ₁ , 27 ₁ (26 ₂ , 27 ₂ , 26 ₃ , 27 ₃ , 26 ₄ , 27 ₄ ) opened, and the first chuck unit 14 ₁ (second chuck unit 14 ₂ , 3 chuck unit 14 ₃ , fourth chuck unit 14 ₄ ), a chute part 146 for dropping a product in which the packaging bag A is filled with contents, and a receiving part 147 for receiving the packaging bag A For example, it has an NG sorting mechanism 148 for sorting and collecting the corresponding packaging bag A when an error occurs in the counting device 133.

In the suction mechanism 9, a tube constituting the intake path connected to the first chuck unit 14 ₁ (second chuck unit 14 ₂ , third chuck unit 14 ₃ , fourth chuck unit 14 ₄ ) is a rotary joint. The tube is twisted together with the rotation of the first chuck unit 14 ₁ (second chuck unit 14 ₂ , third chuck unit 14 ₃ , fourth chuck unit 14 ₄ ) by being connected to the vacuum pump side. There is no.

  As shown in FIG. 4, the controller unit 12 includes a main control unit 151 having a CPU (central processing unit) and the like, and a storage unit for storing processing programs executed by the main control unit 151, various data, and the like. 152, a solenoid valve control unit 153 that controls a solenoid valve constituting each actuator, a motor drive unit 154 for controlling and driving each motor, a heater control unit 155, a display / operation unit 156 having a touch panel, It is constituted by an information processing device such as a computer provided with an indicator lamp 157 for notifying the state of the device.

The main control unit 151 executes various processing programs stored in the storage unit 152, controls each component using various registers and flags secured in the storage unit 152, and performs electromagnetic valve control processing and motor drive control. Execute processing etc.
The main control unit 151 drives, for example, the claw opening / closing actuator 61, the opening actuator 62, the claw opening / closing actuator 63, and the like via the electromagnetic valve control unit 153 at a predetermined timing, and the chuck claws 26 ₁ , 27 are driven. ₁ (26 ₂ , 27 ₂ , 26 ₃ , 27 ₃ , 26 ₄ , 27 ₄ ) is driven to open and close or the mouth portion is expanded.

The main control unit 151 controls the table drive motor 18 via the motor drive unit 154, for example, to rotate the turntable 15 intermittently every 90 °.
The storage unit 152 includes an internal storage device and an external storage device. The storage unit 152 stores various processing programs such as a motor drive control processing program executed by the main control unit 151 and various setting information. And an information storage area for storing information.
The internal storage device includes a semiconductor memory such as a ROM or a RAM. The external storage device includes an FD driver to which an FD (flexible disk) is mounted, an HD driver to which an HD (hard disk) is mounted, an MO disk driver to which an MO (magneto-optical) disk is mounted, or a CD (compact disk). A disc / ROM driver, a CD-R (Recordable), a CD-RW (ReWritable), a DVD (Digital Video Disc) -ROM, a DVD-R, a DVD-RW and the like are mounted.

Next, the operation of the automatic packaging device 1 of this example will be described with reference to FIG. 4 and FIGS.
First, in the bag supply unit 4, the bag stocker 73 selects a predetermined bag stocker 73 from a plurality of types of bag stockers 73 corresponding to the type (particularly dimensions) of the packaging bag A, and attaches it to the mounting frame. Attach to 72. The bag stocker 73 stores a large number (N (N: natural number)) of packaging bags A of a predetermined type in advance.
When the power switch is turned on and activated, the main controller 151 starts the bag supply process (step SA1 (FIG. 10)).

The main control unit 151 controls the suction unit driving actuators 82a and 82b via the electromagnetic valve control unit 153, and the suction units 81a and 81b move forward (rise), and the lowermost packaging bag of the bag stocker 73. Contacting the body A and sucking in this state, the suction portions 81a and 81b are retracted (lowered) and transferred onto the transport path of the bag transport portion 67.
The main control unit 151 controls the roller drive motor 84 and the feed motor 101 via the motor drive unit 154 to rotate the drive roller 86 and the feed roller 94 so that the packaging bag A is transferred to the upper transport unit 78 and It is conveyed by the lower conveyance unit 79 and transferred to the bag body delivery unit 68.

Next, when receiving a detection signal from the bag detection sensor 105, the main control unit 151 controls the bag pushing actuator 116 via the electromagnetic valve control unit 153, and as shown in FIG. , 111b is displaced, the side operation plates 112, 112 and the central operation plate 113 are advanced, and the side operation plate 112 pushes and rotates the front surface portion 107b of the frame body 107 through the packaging bag A, the packaging bag a, for example, extruded first toward the chuck unit 14 _1.
Here, the main controller 151 via a solenoid valve control unit 153 controls the claw opening and closing actuator 61 and allowed to open the chuck jaws ₂₆ 1, 27 _1.

As shown in FIG. 12, the main control unit 151 retracts the side operation plates 112 and 112 and the central operation plate 113 immediately after pushing the packaging bag A through the solenoid valve control unit 153, The side operation plate 112 pushes and rotates the tail portion 107d of the frame body 107 to return it to the original position. Simultaneously with retraction of the side actuation plate 112 and the central portion operating plate 113, and controls the claw opening and closing actuator 61, the chuck claws ₂₆ 1, 27 ₁ are closed, the chuck claws ₂₆ 1, 27 packaging bag by ₁ A is gripped.

Next, the main control unit 151 rotates the table drive motor 18 via the motor drive unit 154 to rotate the rotary table 64 that has been stopped 90 degrees counterclockwise (step SE1). Accordingly, the first chuck unit 14 _1, faces the filling unit 5.
Next, the main control unit 151 starts a filling process (step SB1). That is, the main controller 151 via a solenoid valve control unit 153 controls the opening actuator 62 and the adsorption section drive actuator 132, as shown in FIGS. 31 and 32, the first chuck unit 14 ₁ of the pair while the chuck claws 26 _1, 27 ₁ is closed, i.e., while holding the packaging bag a, while adsorption of both outer surfaces of the packaging bag a, the opening drive shaft portion 46 ₁ and the suction portion 131 is retracted, by narrowing the spacing between the chuck claws 26 _1, 27 _1, press the packaging bag a from both sides, thereby expanding the mouth of the packaging bag a. In this state, the packaging bag A is filled with the contents.

Next, the main control unit 151 controls the opening actuator 62 and the suction unit driving actuator 132 via the electromagnetic valve control unit 153, and the pair of chuck claws 26 ₁ and 27 ₁ remain closed, that is, while gripping the packaging bag a, is advanced toward bag a f packaging the opening drive shaft portion 46 ₁ and the suction portion 131 while adsorbing the outer surface of the packaging bag a, the chuck claws 26 _1, to expand the spacing between the 27 _1, thereby closing the mouth of the packaging bag a to return to the original state.
The main controller 151, simultaneously with the filling process, in a state where the second chuck unit 14 ₂ is facing the bag feeding portion 4 executes the bag supply process (step SA2).

Next, the main control unit 151 rotates the table drive motor 18 via the motor drive unit 154 to rotate the stopped rotary table 90 ° counterclockwise (step SE2). Accordingly, the first chuck unit 14 _1, the seal portion 6, the second chuck unit 14 _2, facing the filling unit 5.
Next, the main controller 151 executes a sealing process (step SC1). That is, the main controller 151 via a solenoid valve control unit 153 controls the compression head driving actuator 136, 136, while the chuck claws ₂₆ 1, 27 ₁ is closed by a pair of compression head 135, 135 The upper portions of both outer surfaces of the packaging bag A are sandwiched and thermocompression bonded.

The main controller 151, at the same time as the sealing process, with the second chuck unit 14 ₂ is facing the filling section 5, executes the filling process (step SB2), and, third chuck unit in the sheet bag section 4 14 _The bag supply process is executed in a state where ₃ faces each other (step SA3).
Next, the main control unit 151 rotates the table drive motor 18 via the motor drive unit 154 to rotate the stopped rotary table 90 ° counterclockwise (step SE3). Thereby, the first chuck unit 14 ₁ is opposed to the printing unit 7 and the discharge portion 8, the second chuck unit 14 _2, to face the seal portion 6, the third chuck unit 14 _3, facing the filling unit 5 To do.

Next, the main control unit 151 executes a print / discharge process (step SD1). That is, the main control unit 151 controls the backup drive actuator 143 and the printer drive actuator 144 via the solenoid valve control unit 153 to drive the printer 139 and the backup plate 141, and the printer 139 causes the packaging bag body. A predetermined area on the outer surface of A is printed.
Next, the main control unit 151 controls the claw opening / closing actuator 61 via the electromagnetic valve control unit 153 to open / close drive rods 37a ₁ , 37b ₁ , 38a ₁ , as shown in FIGS. the 38b ₁ is advanced, the chuck claws ₂₆ 1, 27 ₁ in the open state, to dissociate the packaging bag a from the chuck claws ₂₆ 1, 27 _1. As a result, the product filled with the contents in the packaging bag A passes through the chute 146, reaches the receiving part 147, and is collected.

The main controller 151, at the same time as the printing and ejection process, in a state where the second chuck unit 14 ₂ is opposed to the seal portion 6 performs a sealing process (Step SC2), third chuck unit 14 ₃ to the filling unit 5 There in a state of facing the, executes the filling process (step SB3), and, in a state where the fourth chuck unit 14 ₄ is facing the bag feeding portion 4 executes the bag supply process (step SA4).
Next, the main control unit 151 rotates the table drive motor 18 via the motor drive unit 154 to rotate the stopped rotary table by 90 ° counterclockwise (step SE4). Thereby, the first chuck unit 14 _1, facing the bag feeding portion 4, the second chuck unit 14 ₂ is opposed to the printing unit 7 and the discharge portion 8, the third chuck unit 14 _3, the seal portion 6 confronting, fourth chuck unit 14 _4, faces the filling unit 5.

The main control unit 151 repeatedly executes the above-described operation until the printing / discharge process (step SDN) to the last (Nth) packaging bag A is completed. Here, for example, until the bag supply process (step SAN) for the final (Nth) packaging bag A is completed, the bag supply unit 4, the filling unit 5, the seal unit 6, and the printing unit 7 and Processing is performed simultaneously and continuously at four locations of the discharge unit 8.
Note that the main control unit 151 temporarily stops the operation when, for example, bag detection is not performed or when an error occurs.

According to the configuration of this example, when the packaging bag body A is supplied to the chuck unit attached to the rotary table, the packaging bag body A is placed on the placing plate, and the frame body has its side portion. , And the front plate is pressed via the packaging bag A of the frame to advance the packaging from the state where the operation plate is disposed between the packaging bag A and the back of the frame. The frame body rotates so that the bag body A is released, and the packaging bag body A is pushed out toward the chuck unit. Therefore, when the packaging bag body A is delivered to the chuck unit, a predetermined posture is maintained. It can be delivered reliably in the state.
Moreover, since it has the width adjustment part for adjusting the separation between frame bodies, and the height adjustment part which adjusts the position along the vertical direction of a mounting board, the width | variety of the packaging bag body A, It can easily cope with changes in height (length), and can easily cope with a variety of bags.

In addition, by rotating a turntable to which a plurality of chuck units are attached, a series of processes from receiving the supplied packaging bag A to filling and sealing the contents, to printing and discharging are performed. Can do. Therefore, it is not necessary to perform work while transporting on the belt conveyor, which can contribute to space saving.
Moreover, since the work is performed independently at each station by the rotational transfer of the packaging bag A, the manufacturing tact can be shortened and the productivity can be improved.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. Are also included in the present invention.
For example, in the above-described embodiment, the case where air is used as a power source in the actuator has been described. However, the present invention is not limited to this, and fluid pressure can be generally used. For example, a hydraulic cylinder is used instead of the air cylinder. May be. Further, the horizontal driving by the actuator may be performed by a motor through a timing belt, or may be driven by using a ball screw.

Moreover, you may make it mount a compressor (air compressor) as an air supply source.
Further, the bag body may be dropped from above instead of the operation of pressing the bag body against the chuck unit at the bag body supply unit.
Further, the number of stations is not necessarily limited to four, and for example, a separate printing station may be provided, or a cooling station may be added. Further, the opening station and the filling station may be provided separately. Moreover, it is good also as 3 places by dropping and discharging at this position after sealing. Further, the printing unit may be omitted. Along with this, the number of chuck units attached to the rotary table may be increased or decreased.

Further, when the bag body is delivered, suction may be performed by the chuck unit so that the posture of the bag body can be reliably maintained.
Further, an input device using a light pen may be used instead of the touch panel in the display / operation unit.
Further, the size of the bag may be set in advance by the display / operation unit, or may be detected by the bag storage unit or the like, and the width adjustment or the height adjustment may be automatically performed.

  The actuator can be applied when using a motor in addition to an air cylinder.

It is a front view which shows the structure of the automatic packaging apparatus which is one Example of this invention. It is a side view which shows the structure of the automatic packaging apparatus. It is a top view which shows the structure of the automatic packaging apparatus. It is a block diagram which shows the electrical structure of the automatic packaging apparatus. It is a top view which shows the structure of the rotation transfer part of the automatic packaging apparatus. It is sectional drawing which shows the structure of the bag supply part of the automatic packaging apparatus. It is a side view which shows the structure of the bag body delivery part of the bag supply part. It is sectional drawing which shows the structure of the bag body delivery part. It is sectional drawing which shows the structure of the bag body delivery part. It is a flowchart for demonstrating operation | movement of the automatic packaging apparatus. It is explanatory drawing for demonstrating operation | movement of the bag body delivery part. It is explanatory drawing for demonstrating operation | movement of the bag body delivery part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic packaging apparatus 2 Rotation transfer part 3 Chuck drive part 4 Bag supply part (bag body supply apparatus)
5 Filling section 6 Sealing section 7 Printing section 8 Discharging section 12 Controller section 14 ₁ First chuck unit (chuck unit)
14 ₂ Second chuck unit (chuck unit)
14 ₃ 3rd chuck unit (chuck unit)
14 ₄ 4th chuck unit (chuck unit)
15 Rotating table 66 Bag body storage part (bag body storage part)
67 Bag body transport section (bag body transport means)
68 Bag body delivery section (bag body delivery means)
73 Bag body stocker 77 Bag body takeout part (bag body taking means)
107 Frame (support frame)
107a Side surface portion 107b Front surface portion 107c Back surface portion 107d Tail portion 108 Holding body 109 Mounting plate 112 Side portion operation plate (operation plate)
113 Central operation plate (auxiliary operation plate)
114 Width adjustment part (width adjustment means)
115 Height adjustment part (height adjustment means)
116 Actuator for bag body extrusion (extrusion drive means)
121 Holder mounting shaft (mounting shaft)
121a Right male screw portion (first shaft portion or second shaft portion)
121b Left male screw portion (second shaft portion or first shaft portion)
A Packaging bag

Claims (6)

After grabbing the packaging bag one by one from the bundle of packaging bags, opening the mouth of the packaging bag and filling the contents from the mouth of the packaging bag, the packaging bag A bag body storage unit for storing the packaging bag body, and a bag for taking out the packaging bag body from the bag body storage unit, which is used in an automatic packaging device that seals the mouth of the body and completes the packaging of the contents The body take-out means, the bag body carrying means for carrying the taken-out packaging bag body, and the packaging bag body that has been carried are received and delivered to the chuck unit for grasping and transferring the packaging bag body. A bag body supply device comprising bag body delivery means,
The bag body delivery means includes a pair of support frame bodies each having a substantially groove-shaped cross section that can be pressed around at least both sides of the packaging bag body and can be rotated around a predetermined rotation axis, and the packaging bag body. A pair of operation plates for pushing out the packaging bag body toward the chuck unit disposed opposite to the bag body delivery means, and the operation plate moved forward or backward And an extrusion driving means
By advancing from the state where the operation plate is disposed between the packaging bag body and the back surface portion of the support frame body, the front surface portion of the support frame body is pressed through the packaging bag body. The support frame rotates so that the packaging bag is released, and the packaging bag is pushed toward the chuck unit while maintaining the standing state,
After the operation plate pushes out the packaging bag body, it retracts, so that the back portion of the support frame body is pressed, and the support frame body rotates to rotate the packaging body from the bag body conveying means. A bag supply device configured to return to a state in which the bag can be received and supported.   The bag body supply device according to claim 1, wherein the pair of support frame bodies are attached to the pair of holding bodies so as to be rotatable around a predetermined rotation axis via hinge means. . A width adjusting means for adjusting a distance between the pair of support frame bodies is provided. The width adjusting means is joined with a common shaft center, a right male screw is formed on one side, and a left male screw is formed on the other side. An attachment shaft portion having a first shaft portion and a second shaft portion;
Of the pair of holding bodies, one of the holding bodies is screwed to the first shaft portion, the other holding body is screwed to the second shaft portion, and the mounting shaft portion rotates. The bag body supply device according to claim 2, wherein the pair of holding bodies are separated from each other or approached to adjust a separation between the pair of support frame bodies.   The bag supply device according to claim 1, 2 or 3, further comprising an auxiliary operation plate that moves forward or backward together with the pair of operation plates and presses and pushes the central portion of the packaging bag.   The bag supply device according to any one of claims 1 to 4, further comprising height adjusting means for adjusting a position along the vertical direction of the mounting plate. After grabbing the packaging bag one by one from the bundle of packaging bags, opening the mouth of the packaging bag and filling the contents from the mouth of the packaging bag, the packaging bag An automatic packaging device that seals the mouth of the body and completes the packaging of the contents,
A chuck unit for gripping the packaging bag body, an intermittent rotary motion, the chuck unit being detachably mounted, a rotary table for transferring the packaging bag body, and the packaging bag body A bag body supply device to be delivered to the chuck unit;
The bag supply device according to any one of claims 1 to 5 is used as the bag supply device, and the packaging bag is pushed out toward the chuck unit by the bag delivery means. Automatic packaging device, characterized by being delivered by.

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