JP4080958B2 - Printer device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a printer device for a heat-sensitive adhesive sheet in which a heat-sensitive adhesive layer that normally exhibits non-adhesiveness and develops adhesiveness when heated is formed on one side of a sheet-like substrate.
[0002]
[Prior art]
In recent years, one of the sheets affixed to products is a thermoactive sheet (for example, a printing medium having a coating layer containing a thermoactive component on its surface such as a heat-sensitive adhesive sheet).・ It is used in a wide range of fields, including delivery sheets, medical sheets, baggage tags, and labeling of bottles and cans.
[0003]
This heat-sensitive adhesive sheet can be printed on the surface side with a heat-sensitive adhesive layer that is normally non-adhesive on the back side of a sheet-like substrate (for example, base paper) and exhibits adhesiveness when heated. Each surface is formed.
[0004]
The heat-sensitive adhesive is mainly composed of a thermoplastic resin, a solid plasticizer, etc., and is non-adhesive at room temperature, but has the property that it is activated and exhibits adhesiveness when heated by a heat activation device. Have. Usually, the activation temperature is 50 to 150 ° C., and in this temperature range, the solid plasticizer in the heat-sensitive adhesive is melted and the adhesiveness is imparted to the thermoplastic resin. And since the melted solid plasticizer is gradually crystallized through a supercooled state, the adhesiveness is maintained for a predetermined time, and it is used by sticking to the surface of an object such as a glass bottle while having this adhesiveness. Is done.
[0005]
As a printer apparatus using such a heat-sensitive adhesive sheet, a “linerless label printer” shown in Patent Document 1 has been proposed.
According to this printer device, after the heat-sensitive adhesive layer is activated by the heat activation device, desired characters and images are printed on the printable surface of the heat-sensitive pressure-sensitive adhesive sheet by the thermal printer device. It can be severely cut.
[0006]
As a result, after the adhesive force of the heat-sensitive adhesive sheet is expressed, pasting work of a display sheet on glass bottles such as alcoholic beverages and chemical bottles and plastic containers, or pasting work of price tags and advertising sheets, Since there is no need for a release sheet (liner) such as a general adhesive label sheet, there is an advantage that the cost can be reduced, and there is no need for a release sheet that becomes waste after use, thus saving resources and environmental issues There is merit from the viewpoint.
[0007]
[Patent Document 1]
JP 2000-264322 A
[0008]
[Problems to be solved by the invention]
However, in the conventional printer device, after the heat-sensitive adhesive layer is activated by the thermal activation device, desired characters, images, and the like are printed on the printable surface of the heat-sensitive adhesive sheet by the thermal printer device. It has become.
[0009]
As a result, the heat-sensitive adhesive sheet that exhibits adhesive strength is transported to the thermal printer device, and the heat-sensitive adhesive sheet sticks to the printing platen roller, so that it easily wraps around the platen roller and easily causes jams. have.
[0010]
Moreover, in order to make the above-mentioned jam difficult to occur, the surface of the platen roller for printing is difficult to adhere to the surface, and the main component is a substance having a relatively low surface energy such as a silicone resin or a fluororesin. Although it may be configured with a material, there is a problem that the manufacturing cost increases.
[0011]
In the above printer device, the activation process is performed by the thermal activation device, and after printing desired characters and images by the thermal printer device, it is cut to a desired length by the cutter device. There is a possibility that the heat-sensitive adhesive exhibiting adhesive force may adhere to the blade of the cutter device and reduce the cutting quality. Therefore, in the above printer device, the inactive portion of the heat-sensitive adhesive layer (that is, the heat activation device is not subjected to heat treatment at the front end portion and the rear end portion corresponding to the cutting position of the heat-sensitive adhesive sheet). A region that is not generated) is provided, so that it is possible to avoid a situation in which the heat-sensitive adhesive adheres to the blade of the cutter device at the cutting position.
[0012]
However, at the front end portion and the rear end portion of the heat-sensitive adhesive sheet (label) cut by the cutter device, as described above, the heat-sensitive adhesive layer is not activated and an inactive site where the adhesive force cannot be expressed remains. For this reason, there is a problem that, when affixed to an object, it is easily peeled off from a portion having no adhesive force.
[0013]
In addition, when cutting with the cutter device, it is necessary to stop the conveyance of the heat-sensitive adhesive sheet, but the thermal head of the thermal activation device remains after the power is turned off. There is a possibility that the heat-sensitive adhesive layer of the heat-sensitive adhesive sheet located in the apparatus is activated and sticks to the thermal head, or heat reaches the printable surface to cause unnecessary color development.
[0014]
The present invention has been devised to solve the above-mentioned problems, and it is possible to prevent the heat-sensitive adhesive sheet from jamming without increasing the cost, and to perform an activation process that does not easily peel off from the object. It is another object of the present invention to provide a printer apparatus that can prevent unnecessary activation and color development due to residual heat of a thermal activation thermal head.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a heat-sensitive adhesive sheet in which a printable surface comprising a thermosensitive coloring layer is formed on one surface of a sheet-like substrate and a heat-sensitive adhesive layer is formed on the other surface. The thermal head for printing (10) which prints in contact with the thermosensitive coloring layer of the (thermosensitive adhesive label L), and the thermal head for activation (40) for heating and activating the thermosensitive adhesive layer ), A cutter device (cutter unit C) for cutting the heat-sensitive adhesive sheet, transport means (first and second stepping motors, etc.) for transporting the heat-sensitive adhesive sheet, and the thermal head for printing , Thermal head for activation , The cutter device And the conveying means A control device (control device 1500) that controls at least the control device, wherein the control device is arranged in the order of the thermal head for printing, the thermal head for activation, and the cutter device. And after the heat-sensitive adhesive sheet is cut by the cutter device, the tip of the remaining part of the heat-sensitive adhesive sheet is printed at the printing position of the thermal head for printing. Put To return To control I did it.
[0016]
Thus, the heat-sensitive adhesive sheet is subjected to a printing process on the printable surface with the printing thermal head, and then the activation process of the heat-sensitive adhesive layer is performed with the activation thermal head. Since it is cut to a predetermined length by the cutter device, the activation process is performed prior to the printing process as before, avoiding the situation where a heat-sensitive adhesive sheet sticks to the printing platen roller and causes jamming. can do.
[0017]
In addition, after the front side of the heat-sensitive adhesive sheet is cut at the predetermined cutting position by the cutter device, the front end of the remaining portion from the cutting position of the heat-sensitive adhesive sheet is positioned at the position of the thermal head for printing. Put Therefore, even if there is a part that is not subjected to thermal activation treatment at the front end of the remaining part from the cutting position of the heat-sensitive adhesive sheet, it will be activated in the next process. Since the heat activation treatment is surely performed by the head, at least the heat-sensitive adhesive layer at the tip of the heat-sensitive pressure-sensitive adhesive sheet after cutting is prevented from generating a non-activated portion (a region that does not express adhesive force). , It can be made difficult to peel off when affixed to an object.
[0018]
In addition, the tip of the remaining portion in front of the cutting position of the heat-sensitive adhesive sheet is the position of the thermal head for printing. Put Therefore, unnecessary activation and color development by the activation thermal head can be prevented.
[0019]
In addition, a temperature sensor (K) for measuring the temperature of the thermal head for activation is further provided, and the control means is configured to detect the temperature of the thermal head for activation measured by the temperature sensor when the temperature is higher than a predetermined value. If the temperature of the thermal head for activation measured below the predetermined value (for example, 70 ° C.) is not more than a predetermined value (for example, 70 ° C.), the cutting position of the heat-sensitive adhesive sheet is the cutter device. The conveying means is driven to stop at the cutting section, and the cutter device is driven to perform cutting. As a result, when the heat-sensitive adhesive sheet is cut by the cutter device, the thermal head for activation is at a predetermined temperature or lower, so that the heat-sensitive adhesive layer is activated by residual heat or the printable surface is heat-sensitive. It is possible to reliably avoid a situation in which the coloring layer is colored.
[0020]
Further, when the cutting position of the heat-sensitive adhesive sheet reaches the cutter device, the distance from the thermal head for activation to the cutter device so that the thermal head for activation becomes a predetermined temperature or less, and the The conveying speed of the conveying means can be set. As a result, when cutting the heat-sensitive adhesive sheet with the cutter device Alive The heat-sensitive adhesive sheet located on the thermal head Alive It is possible to reliably avoid a situation in which the heat-sensitive pressure-sensitive adhesive layer is activated by the remaining heat of the thermal head for oxidization or higher than a predetermined temperature, or the heat-sensitive color forming layer on the printable surface is colored.
[0021]
Further, a thermal head separating means for separating the surface of the thermal head for activation from the heat-sensitive adhesive sheet is further provided, and the control means is configured such that when the cutting position of the heat-sensitive adhesive sheet reaches the cutter device. The conveying means is stopped, and the thermal head separating means is operated. As a result, when the heat-sensitive adhesive sheet is cut by the cutter device, the heat-sensitive adhesive sheet located on the activation thermal head is separated from the activation thermal head, so that the thermal head is activated by the activation thermal head. It is possible to more reliably avoid the situation where the adhesive layer is activated or the heat-sensitive coloring layer on the printable surface is colored.
[0022]
Further, the thermal head separating means is provided on the lower surface side of the activation thermal head and rotates in contact with the activation rod member that can move up and down together with the activation thermal head and a part of the activation rod member. And a cam mechanism that converts the motion into a vertical motion. Thereby, the thermal head separating means can be realized with a simple and inexpensive configuration.
[0023]
The thermal head separating means is provided on the lower surface side of the activation thermal head, and can be moved up and down together with the activation thermal head. You may make it comprise from the actuator to move. As a result, the thermal head separating means can be realized with a simple configuration.
[0024]
The actuator can be configured by any one of a solenoid, a pneumatic cylinder device, and a hydraulic cylinder device. Thereby, the vertical movement of the activation thermal head can be easily realized.
[0025]
Further, the cutting position of the heat-sensitive adhesive sheet may be an inactive site that is separated from the position where the activation by the activation thermal head is completed by a predetermined distance in the direction opposite to the conveyance direction. Thereby, the heat-sensitive adhesive layer can be deactivated at the cutting position of the heat-sensitive adhesive sheet, and a situation in which the heat-sensitive adhesive is attached to the blade of the cutter device and the cutting quality is deteriorated can be avoided. .
[0026]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings.
[0027]
FIG. 1 is a schematic diagram showing a configuration of a thermal printer apparatus P1 according to the first embodiment, and FIG. 2 is a control block diagram of the thermal printer apparatus P1.
[0028]
In FIG. 1, a thermal printer apparatus P1 includes a printing unit I, a thermal activation unit A as a thermal activation apparatus, and a cutter unit C in the order of conveyance of the heat-sensitive adhesive label L (right direction in the figure). Is arranged. In the vicinity of the printing unit I, a roll R of a heat-sensitive adhesive sheet around which a long heat-sensitive adhesive label L is wound is disposed.
[0029]
The printing unit I includes a printing thermal head 10, a platen roller 11 that is pressed against the printing thermal head 10, and a drive system (not shown) that rotates the platen roller 11 (for example, a first stepping motor M 1 and a gear train). I have.
Then, by rotating the platen roller 11 in FIG. 1 in the clockwise direction, the heat-sensitive adhesive label L is pulled out from the roll R, and after the heat-sensitive printing is performed on the drawn heat-sensitive adhesive label L, the printing is performed in the right direction. It comes to carry out. The printing thermal head 10 includes a pressing means (not shown) (for example, a coil spring or a leaf spring), and the surface of the printing thermal head 10 is pressed against the platen roller 11 by its elastic force. Yes.
[0030]
The heating element H1 of the printing thermal head 10 includes a plurality of relatively small resistors arranged in parallel in the width direction of the head so that dot printing is possible. On the other hand, the heating element H2 as an electrical heating source of the thermal activation thermal head 40, which will be described later, does not need to be divided in units of dots as in printing, but is continuous like a thermal bar used in a laser printer or the like. It may be a resistor. Further, instead of a thermal head or a heat bar, it is also possible to employ a heat roll that rotates a cylindrical resistor used in a laser printer or the like.
[0031]
In addition, by using resistors having the same configuration for the thermal head for printing 10 and the thermal head 40 for thermal activation, it is possible to reduce the cost by using common parts.
[0032]
Here, the heat-sensitive adhesive label L used in the present embodiment is not particularly limited. For example, a heat-insulating layer and a heat-sensitive color-developing layer (printable layer) are formed on the front surface side of the label-like substrate, and the back surface side. It has a structure in which a heat-sensitive adhesive layer formed by applying and drying a heat-sensitive adhesive is formed. The heat-sensitive adhesive layer is made of a heat-sensitive adhesive mainly composed of a thermoplastic resin, a solid plastic resin or the like. The heat-sensitive adhesive label L may not have the heat insulating layer, or may have a heat-sensitive color-developing layer provided with a protective layer or a colored printing layer (a pre-printed layer).
[0033]
Then, based on a print signal from a control device 1500 to be described later, the thermal head 10 for printing and the platen roller 11 for printing (first stepping motor M1) are operated so that the thermosensitive coloring layer (printable) of the thermosensitive adhesive label L is possible. Surface) can be printed as desired.
[0034]
The thermal activation unit A is rotated by a drive source (second stepping motor M2) (not shown), for example, and an insertion roller 30 and a discharge roller for inserting and discharging the thermosensitive adhesive label L conveyed from the printing unit I. The thermal activation thermal head 40 and the thermal activation platen roller 41 pressed against the thermal activation thermal head 40 are disposed between the insertion roller 30 and the discharge roller 31. The thermal activation platen roller 41 includes a drive system (for example, the second stepping motor M2 and a gear train). The thermal activation platen roller 41 is rotated clockwise, and is inserted by the insertion roller 30 and the discharge roller 31. The heat sensitive adhesive label L is conveyed rightward. The thermal activation platen roller 41 is made of, for example, hard rubber.
[0035]
The cutter unit C is for cutting the heat-sensitive adhesive label L subjected to the thermal activation process by the thermal activation unit A with an appropriate length, and is operated by a drive source (not shown) such as an electric motor. It consists of a movable blade 20, a fixed blade 21 and the like. The cutter driving unit 20A (not shown) of the movable blade 20 is operated at a predetermined timing under the control of a control device 1500 described later.
[0036]
Further, sensors S1 to S3 for detecting the presence or absence of the heat-sensitive adhesive label L are provided between the roll R of the heat-sensitive adhesive sheet and the printing unit I, between the insertion roller 30 and the thermal activation platen roller 41, and the cutter unit. C is disposed in the subsequent stage.
[0037]
The thermal activation thermal head 40 is provided with a temperature sensor K for measuring the temperature.
[0038]
Here, as shown in FIG. 2, the control device 1500 of the thermal printer apparatus P1 includes a one-chip microcomputer 1000 that controls the control unit, a ROM 1010 that stores a control program executed by the microcomputer 1000, and various types. A RAM 1020 for storing a print format, an operation unit 1030 for inputting, setting or calling print data or print format data, a display unit 1040 including a liquid crystal display panel for displaying the print data, etc. The interface 1050 is used to input and output data between the control unit and the driving device.
[0039]
The interface 1050 includes a heating element H1 of the printing thermal head 10 of the printing unit I, a heating element H2 of the thermal activation thermal head 40 of the thermal activation unit A, a cutter driving unit 20A of the cutter unit C, and first to third steppings. Motors M1 to M3 and heat-sensitive adhesive label detection sensors S1 to S3 are connected to each other.
[0040]
In the figure, the third stepping motor M3 or the solenoid 80 indicates a drive source of the thermal head separation mechanisms V1 and V2 as shown in FIGS.
[0041]
Here, when the operation of the thermal printer apparatus P1 according to the first embodiment having the above-described configuration is outlined, the heat-sensitive adhesive label L drawn from the roll R of the heat-sensitive adhesive sheet is controlled by the control device 1500. First, predetermined thermal printing is performed on the printable surface (front side in FIG. 1) in the printing unit I, and the printed unit I is transported to the thermal activation unit A.
[0042]
Next, in the heat activation unit A, the heat-sensitive adhesive layer of the heat-sensitive pressure-sensitive adhesive label L is subjected to heat activation treatment to develop an adhesive force, and then conveyed to the cutter unit C.
[0043]
When the heat-sensitive adhesive label L is conveyed by a predetermined length and the cutting position G arrives at the blades (20, 21) of the cutter unit C, the conveyance of the heat-sensitive adhesive label L is stopped, and the movable blade 20 To drive the cutting process.
[0044]
At this time, although a detailed control procedure will be described later, a thermal activation / coloring prevention process for preventing thermal activation and color development of the thermosensitive adhesive label L located on the thermal activation thermal head 40 is executed. That is, when the heat-sensitive adhesive label L is cut by the cutter unit C, the conveyance of the heat-sensitive adhesive label L is stopped, but the heat activation process is completed in the heat activation unit A, and the heating element H2 is transferred to the heating element H2. Even after the current supply is cut off, the remaining heat remains for a predetermined time, which may cause unnecessary thermal activity and color development on the heat-sensitive adhesive label L located on the thermal activation thermal head 40. Therefore, it is necessary to prevent this unnecessary thermal activity and color development.
[0045]
In the thermal activation / coloring prevention treatment in this embodiment, the temperature of the thermal activation thermal head 40 is measured by the temperature sensor K, and the thermosensitive adhesive label L is conveyed until the temperature falls below a predetermined temperature (for example, 70 ° C.). The cutting process is performed by adjusting so that the cutting position G of the heat-sensitive adhesive label L comes to the position of the blades (20, 21) of the cutter unit C when the temperature falls below a predetermined temperature. As a result, when the heat-sensitive adhesive label L is cut, the thermal activation thermal head 40 is cooled to a predetermined temperature or lower, so that unnecessary heat activation and color development of the heat-sensitive adhesive label L can be prevented. .
[0046]
Note that after the cutting process of the heat-sensitive adhesive label L is completed, the remaining part of the heat-sensitive adhesive label L is transported in the direction opposite to the normal transport direction (left side in FIG. 1) under the control of the control device 1500, and the leading end is Of the thermal head 10 for printing of the printing unit I Print position Stopped at. As a result, even if there is a portion that is not subjected to the heat activation process at the front end portion of the remaining part from the cutting position G of the heat-sensitive adhesive label L, the thermal activation thermal head 40 ensures the next process. Since the heat activation treatment is applied to the heat-sensitive adhesive label L1, at least the tip of the heat-sensitive pressure-sensitive adhesive label L1 is prevented from generating a non-activated portion (a region that does not express adhesive force). When attached to an object, it can be made difficult to peel off.
[0047]
Further, by controlling the timing of energization to the thermal activation thermal head 40, the cutting position G of the heat-sensitive adhesive label L is the direction opposite to the conveying direction from the position where activation by the thermal activation thermal head 40 is completed. Inactive sites separated by a predetermined distance (for example, several millimeters) can be formed. As a result, the heat-sensitive adhesive layer can be deactivated at the cutting position G of the heat-sensitive adhesive label L, and the heat-sensitive adhesive adheres to the blades (20, 21) of the cutter unit C, thereby reducing the cutting quality. Can be avoided. However, an inactive site N remains at one end of the cut heat-sensitive adhesive label L1, for example, as shown in FIG. 6, but the effect on the pasting performance is slight because of the slight width. It is thought that.
[0048]
Here, a specific processing procedure of the thermal activation / coloring prevention processing due to residual heat will be described with reference to the flowcharts of FIGS. 3 and 4 and the explanatory diagram of FIG.
[0049]
When the thermal activation / coloring prevention process by the residual heat is started, first, in step S100, it is determined whether the sensor S3 is in an on state or an off state. If it is in the on state, it waits as it is, and if it is determined as the off state, it proceeds to step S101.
[0050]
In step S101, it is determined whether the sensor S1 is on or off. If it is determined to be in the off state, the process proceeds to step S102, a paper out error display is output to the display unit 1040, and a standby state is entered. As a result, the user can replace the roll R and remove a paper jam.
[0051]
On the other hand, if it is determined that the sensor S1 is in the on state, the first rotation of the first stepping motor M1 of the printing unit I and the second stepping motor M2 of the thermal activation unit A are started to rotate. The conveyance is started, the process proceeds to step S104, and the printing process by the printing thermal head 40 of the printing unit I is started.
[0052]
Next, the process proceeds to step S105, and the on / off state of the sensor S2 is determined. Then, in the off state, the process proceeds to step S106 to determine whether or not the second stepping motor M2 of the thermal activation unit A has rotated a predetermined number of times. In the case of No, the process returns to step S105 to carry. If YES, the first and second stepping motors M1 and M2 are stopped in step S107, and an error display such as “paper jam has occurred” is displayed in step S108 and waits.
[0053]
On the other hand, if it is determined in step S105 that the sensor S2 is in the ON state, the process proceeds to step S109 to start energization of the thermal activation thermal head 40 of the thermal activation unit A and the thermal sensitive adhesive label L is changed. The heat activation process is started.
[0054]
Next, the process proceeds to step S110 and the printing process is terminated after a lapse of a predetermined time. The process proceeds to step S111 and the thermal activation process is terminated after the lapse of a predetermined time (that is, the energization to the thermal activation thermal head 40 is cut off). .
[0055]
Thereby, as shown in FIG. 5, the front-end | tip part of the heat sensitive adhesive label L will be in the state conveyed through the cutter unit C and conveyed.
[0056]
Next, jumping to A in the flowchart of FIG. 4, it is determined in step S112 whether the residual heat temperature of the thermal activation thermal head 40 is 70 ° C. or less. Needless to say, the preheating temperature is not limited to 70 ° C., and can be appropriately changed according to the temperature characteristics of the heat-sensitive adhesive layer and the heat-sensitive color forming layer of the heat-sensitive adhesive label L.
[0057]
And if it is No, it waits as it is and waits for it to cool, and if it is Yes, it will transfer to Step S113.
[0058]
In step S113, it is determined whether or not the cutting position G of the heat-sensitive adhesive label L has passed the cutter unit C. This determination is performed, for example, by counting the rotation speeds of the first and second stepping motors M1 and M2. Then, if No, the process proceeds to step S115, and if Yes, the process proceeds to step S114, the first and second stepping motors M1, M2 are reversely rotated by a predetermined number, and in step S15, the first timing is reached. First, the second stepping motors M1 and M2 are stopped. Thereby, alignment with the cutting position G and the blade (20, 21) of the cutter unit C is performed.
[0059]
Next, in step S116, the cutter driving unit 20A of the cutter unit C is driven, and the cutting process by the movable blade 20 is executed.
Thereby, as shown in FIG.5 (b), the heat-sensitive adhesive label L1 for sticking is cut | disconnected. At this time, since the conveyance of the subsequent heat-sensitive adhesive label L is stopped, a part of the heat-sensitive adhesive label L comes into contact with the thermal activation thermal head 40 in a stopped state. Since the thermal head 40 is cooled to 70 ° C. or less, it is possible to avoid a situation in which unnecessary thermal activity or color development occurs.
[0060]
Next, the process proceeds to step S117, and the first and second stepping motors M1, M2 are reversed. Thereby, as shown in FIG.5 (c), conveyance of the subsequent thermosensitive adhesive label L to a reverse direction (left direction in FIG. 5) with respect to a normal conveyance direction is started. Next, the process proceeds to step S118, where it is determined whether the sensor S2 is on or off. If it is determined that the sensor S2 is in the off state, the process proceeds to step S119, and after a predetermined time has elapsed, the first and second stepping motors M1. , M2 is stopped to enter a standby state. As a result, as shown in FIG. 5D, the leading end portion of the subsequent heat-sensitive adhesive label L is attached to the thermal head 10 for printing. Print position It can be stopped in the state of being located. Therefore, the printing process and the heat activation process can be reliably performed from the top of the heat-sensitive adhesive label L at the next label issuance.
[0061]
On the other hand, if it is determined No in step S118, the process proceeds to step S120 to determine whether or not the first and second stepping motors M1 and M2 have rotated a predetermined number of times. In step S121, the first and second stepping motors M1 and M2 are stopped, and in step S122, an error display such as “abnormality has occurred” is output to enter a standby state.
[0062]
As described above, according to this embodiment, the heat-sensitive adhesive label L is printed on the printable surface by the printing thermal head 10, and then the thermal activation thermal head 40 is used to form the heat-sensitive adhesive layer. Since the activation process is performed and then cut to a predetermined length by the cutter unit C, the activation process is performed prior to the printing process as in the prior art, so that the heat-sensitive adhesive label is formed on the printing platen roller. It is possible to avoid a situation where jamming occurs due to sticking.
[0063]
In addition, after the head side of the heat-sensitive adhesive label L is cut at the predetermined cutting position G by the cutter unit C, the front end of the remaining portion (the subsequent heat-sensitive adhesive label L) from the cutting position of the heat-sensitive adhesive label L Is the position of thermal head 10 for printing Put Therefore, even if there is a part that is not subjected to the heat activation process at the front end of the remaining part before the cutting position G of the heat-sensitive adhesive label L, the thermal activation is performed in the next process. Since the thermal activation process is surely performed by the thermal head 40 for activation, a non-activated part (area where adhesive force is not expressed) is present at least in the heat-sensitive adhesive layer at the tip of the heat-sensitive adhesive label L after cutting. Occurrence is prevented, and it can be made difficult to peel off when it is attached to an object.
[0064]
In addition, a temperature sensor K for measuring the temperature of the thermal activation thermal head 40 is provided, and when the temperature measured by the temperature sensor K is equal to or higher than a predetermined value (for example, 70 ° C.), the thermosensitive adhesive label L When the measured temperature becomes a predetermined value (for example, 70 ° C.) or less, the first and second cutting positions G of the heat-sensitive adhesive label L arrive at the cutter unit C and stop when the measured temperature is lower than a predetermined value (for example, 70 ° C.). The second stepping motors M1 and M2 are driven and the cutter unit C is driven. Thereby, when the heat-sensitive adhesive label L is cut by the cutter unit C, the thermal activation thermal head 40 is at a predetermined temperature or lower, so that the heat-sensitive pressure-sensitive adhesive layer is activated or printed by the remaining heat. It is possible to reliably avoid the situation where the heat-sensitive color forming layer on the possible surface is colored.
[0065]
Next, a thermal printer apparatus P2 according to the second embodiment will be described with reference to the explanatory diagrams of FIGS.
The configuration of the thermal printer device P2 is substantially the same as that of the thermal printer device P1 according to the first embodiment except that the temperature sensor K is not provided and the heating element H2 of the thermal head 40 for thermal activation is used as a cutter unit C. Is different in that the distance to the blades (20, 21) is long.
[0066]
The distance Y from the heating element H2 of the thermal activation thermal head 40 to the blades (20, 21) of the cutter unit C is such that the cutting position G of the heat-sensitive adhesive label L is as shown in FIG. When the position of the C blade (20, 21) is reached, the thermal activation thermal head 40 is set to a predetermined temperature (for example, 70 ° C.) or less. Thereby, when the thermal sensitive adhesive label L is cut by the cutter unit C, the thermal activation thermal head 40 has already been cooled to a predetermined temperature (for example, 70 ° C.) or lower, so that the heat sensitive adhesive is caused by residual heat. It is possible to reliably avoid a situation where the layer is activated or the heat-sensitive coloring layer on the printable surface is colored.
[0067]
The distance Y varies depending on the conveyance speed of the heat-sensitive adhesive label L (such as the rotation speeds of the first and second stepping motors), and is determined in consideration of these parameters.
[0068]
Further, after the cutting process of the heat-sensitive adhesive label L is performed by the cutter unit C, the first and second stepping motors M1 and M2 are started from the state of FIG. 7B as in the case of the first embodiment. It is reversed and transported in the direction opposite to the normal transport direction (leftward in FIG. 7C) and controlled to stop before the thermal print head 10 as shown in FIG. 7D. The Thereby, the printing process and the thermal activation process can be reliably performed from the head of the heat-sensitive adhesive label L at the next label issuance.
[0069]
As described above, according to the second embodiment, the conveyance time and stop of the heat-sensitive adhesive label L based on the temperature measurement result of the thermal activation thermal head 40 by the temperature sensor K as in the first embodiment. Without any control to adjust the position, it is a simple configuration that appropriately sets the distance Y from the heating element H2 of the thermal activation thermal head 40 to the blades (20, 21) of the cutter unit C. Thermal activation and unnecessary color development can be prevented.
[0070]
Next, a thermal printer apparatus P3 according to the third embodiment will be described with reference to FIGS.
The thermal printer device P3 according to the third embodiment omits the temperature sensor K from the thermal printer device P1 of the first embodiment, and causes the thermal activation thermal head 40 to be detached from the thermal activation platen roller 41. The separation mechanism V1 is provided. When the cutting position G of the heat-sensitive adhesive label L reaches the position of the blades (20, 21) of the cutter unit C, the first and second stepping motors M1, M2 are stopped, and the thermal head separating mechanism. Activate V1. Thereby, when the cutting process of the heat-sensitive adhesive label L is performed by the cutter unit C, the heat-sensitive adhesive layer of the heat-sensitive adhesive label L located on the thermal activation thermal head 40 is used for the thermal activation thermal head 40. Since it is separated from the surface, it is possible to reliably avoid a situation in which the heat-sensitive adhesive layer is activated by remaining heat or the heat-sensitive color forming layer on the printable surface is colored.
[0071]
As shown in FIGS. 9A and 9B, the thermal head separation mechanism V1 is provided on the lower surface side of the thermal activation thermal head 40, and can be moved up and down together with the thermal activation thermal head 40. , The cam mechanism 60 that abuts against the horizontal portion 50a of the operating rod member 50 to convert the rotational motion into the vertical motion, and the thermal activation thermal head 40 in the normal state by the platen roller 41 for thermal activation. It is comprised from the spring 70 arrange | positioned under the operating rod member 50 which presses with respect to.
[0072]
The cam mechanism 60 includes an eccentric cam 60, a rotary shaft 62, and a third stepping motor M3 as a drive source (not shown).
[0073]
And by the control similar to the thermal printer apparatus P1 which concerns on the said 1st Embodiment, the conveyance process of the thermosensitive adhesive label L, a printing process, and a thermal activation process are performed, and the cutting position G of the thermosensitive adhesive label L is set. When it is determined that the position of the blade (20, 21) of the cutter unit C has been reached, the driving of the third stepping motor M3 is started, and the eccentric cam 60 is moved from the position (a) of FIG. By rotating 180 degrees counterclockwise, the state shown in FIG. 9B is obtained.
[0074]
As a result, the operating rod member 50 and the thermal activation thermal head 40 are pushed down by the action of the eccentric cam 60, and the thermal adhesive layer of the thermal adhesive label L located on the thermal activation thermal head 40 and the heat The surface of the activation thermal head 40 is separated. Therefore, the heat-sensitive adhesive label L, which has been stopped for carrying out the cutting process by the cutter unit C, activates the heat-sensitive adhesive layer due to the residual heat of the thermal activation thermal head 40, or the heat-sensitive surface of the printable surface. It is possible to reliably avoid a situation in which the coloring layer is colored.
[0075]
In particular, in the present embodiment, unlike the first and second embodiments, there is no need to wait until the thermal activation thermal head 40 becomes a predetermined temperature or lower, so that the label can be issued more quickly.
[0076]
Further, as shown in FIG. 10, a thermal head separation mechanism V <b> 2 using a solenoid 80 as a drive source can be employed instead of the cam mechanism 60.
This thermal head separation mechanism V2 has a structure in which a plunger 81 of a solenoid 80 is engaged with the lower surface of the thermal activation thermal head 40. Then, when it is determined that the cutting position G of the heat-sensitive adhesive label L has reached the position of the blades (20, 21) of the cutter unit C, the solenoid 80 is driven and the plunger 81 is moved as shown in FIG. The position is pulled down from the position as shown in FIG.
[0077]
Thereby, the operating rod member 50 and the thermal activation thermal head 40 are moved downward, and the thermal adhesive layer of the thermal adhesive label L located on the thermal activation thermal head 40 and the thermal activation thermal head 40. Is separated from the surface. Therefore, the heat-sensitive adhesive label L, which has been stopped for carrying out the cutting process by the cutter unit C, activates the heat-sensitive adhesive layer due to the residual heat of the thermal activation thermal head 40, or the heat-sensitive surface of the printable surface. It is possible to reliably avoid a situation in which the coloring layer is colored.
[0078]
Instead of the solenoid 80, various actuators such as a pneumatic cylinder device and a hydraulic cylinder device can be used.
[0079]
Although the invention made by the present inventor has been specifically described based on the embodiments, the present invention is not limited to the above-described examples, and various modifications can be made without departing from the scope of the invention.
[0080]
For example, in the above embodiment, the heat-sensitive adhesive label L is transported by the first stepping motor M1 of the printing unit I and the second stepping motor M2 of the thermal activation unit A. The conveyance process may be performed by one stepping motor using a gear train having a structure.
[0081]
It is also conceivable to provide a cooling means such as a cooling fan so that the residual heat of the thermal activation thermal head 40 can be removed in a short time.
[0082]
【The invention's effect】
As described above, the printer device according to the present invention has a thermal sensitivity in which a printable surface composed of a thermosensitive coloring layer is formed on one surface of a sheet-like substrate and a thermosensitive adhesive layer is formed on the other surface. A thermal head for printing that prints by contacting the heat-sensitive coloring layer of the pressure-sensitive adhesive sheet, a thermal head for activation for heating and activating the heat-sensitive pressure-sensitive adhesive layer, and cutting the heat-sensitive pressure-sensitive adhesive sheet A printer device comprising at least a cutter device, a transport unit that transports the heat-sensitive adhesive sheet, and a control unit that controls the thermal head for printing, the thermal head for activation, and the cutter device, wherein the control The means conveys the heat-sensitive adhesive sheet in the order of the printing thermal head, the activation thermal head, and the cutter device, and the heat-sensitive adhesive sheet. Landing sheet is said after being cut by the cutter device, the heat-sensitive adhesive sheet of the residual portion of the distal end print position of the printing thermal head Put To return in Do control Since the activation process is performed prior to the printing process as in the prior art, it is possible to avoid a situation in which the heat-sensitive adhesive sheet is stuck on the printing platen roller and a jam occurs. .
[0083]
In addition, after the front side of the heat-sensitive adhesive sheet is cut at the predetermined cutting position by the cutter device, the front end of the remaining portion from the cutting position of the heat-sensitive adhesive sheet is positioned at the position of the thermal head for printing. Put Therefore, even if there is a part that is not subjected to thermal activation treatment at the front end of the remaining part from the cutting position of the heat-sensitive adhesive sheet, it will be activated in the next process. Since the heat activation treatment is surely performed by the head, at least the heat-sensitive adhesive layer at the tip of the heat-sensitive pressure-sensitive adhesive sheet after cutting is prevented from generating a non-activated portion (a region that does not express adhesive force). There is an effect that it can be made difficult to peel off when it is attached to an object.
[0084]
In addition, the tip of the remaining portion in front of the cutting position of the heat-sensitive adhesive sheet is the position of the thermal head for printing. Put Therefore, unnecessary activation and color development by the activation thermal head can be prevented.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a configuration of a thermal printer apparatus according to the present invention.
FIG. 2 is a control block diagram of the thermal printer apparatus according to the present invention.
FIG. 3 is a flowchart showing a processing procedure of thermal activation / coloring prevention processing due to residual heat of the thermal printer apparatus according to the first embodiment.
4 is a flowchart showing a continuation of the processing procedure of FIG. 3;
FIG. 5 is an explanatory diagram showing an operation of the thermal printer apparatus according to the first embodiment.
6 is an explanatory view showing a heat-sensitive adhesive label L1 cut by the cutter unit C. FIG.
FIG. 7 is an explanatory diagram illustrating an operation of a thermal printer device according to a second embodiment.
FIG. 8 is a schematic diagram illustrating a configuration of a thermal printer apparatus according to a third embodiment.
FIG. 9 is an explanatory diagram illustrating the configuration and operation of a thermal head separation mechanism V1 of a thermal printer device according to a third embodiment.
FIG. 10 is an explanatory diagram showing the configuration and operation of a thermal head separation mechanism V2 of a thermal printer device according to a third embodiment.
[Explanation of symbols]
P1, P2, P3 Thermal printer device
R Roll-shaped heat-sensitive adhesive label (heat-sensitive adhesive sheet)
L, L1 heat-sensitive adhesive label (heat-sensitive adhesive sheet)
I Printing unit
10 Thermal head for printing
11 Platen roller for printing
A Thermally active unit
H1, H2 heating element
C Cutter unit
20 Movable blade
21 Fixed blade
30 Pull-in roller
31 Discharge roller
40 Thermal head for thermal activation
41 Platen roller for thermal activation
50 Actuation rod
60 cams
70 Spring
S1, S2, S3 Detection sensors for heat-sensitive adhesive labels
K temperature sensor
1500 controller
1000 microcomputer
M1 first stepping motor
M2 Second stepping motor
M3 3rd stepping motor
80 Solenoid
G Cutting position
V1, V2 thermal head separation mechanism
N Inactive site

Claims (7)

Printing is performed by contacting a printable surface composed of a thermosensitive coloring layer on one surface of a sheet-like substrate and a heat-sensitive adhesive layer of a heat-sensitive adhesive sheet formed on the other surface. Thermal head for printing, thermal head for activation for heating and activating the thermosensitive adhesive layer, a cutter device for cutting the thermosensitive adhesive sheet, and conveying means for conveying the thermosensitive adhesive sheet And a control unit that controls at least the printing thermal head , the activation thermal head , the cutter device, and the conveying unit ,
A temperature sensor for measuring the temperature of the thermal head for activation;
The control means includes
The heat-sensitive adhesive sheet is conveyed so as to pass through the printing thermal head, the activation thermal head, and the cutter device in this order, and the activation is terminated and the energization to the activation thermal head is performed. After the heat-sensitive adhesive sheet is continued until the temperature of the thermal head for activation measured by the temperature sensor becomes a predetermined value or less,
When the temperature of the thermal head for activation is equal to or lower than the predetermined value, it is determined whether or not the cutting position of the heat-sensitive adhesive sheet has passed through the cutter device. When the heat-sensitive adhesive sheet is conveyed so that the cutting position of the adhesive sheet returns to the cutting part of the cutter device and stops, on the other hand, when it is determined that it has not passed, the cutting position of the heat-sensitive adhesive sheet is the Conveying the thermosensitive adhesive sheet to stop at the cutting part of the cutter device,
Printer The heat-sensitive adhesive sheet, characterized in the after cut by the cutter, to control the tip of the remaining portion of the heat-sensitive adhesive sheet to return the printing position 置Ma of the printing thermal head apparatus. Printing is performed by contacting a printable surface composed of a thermosensitive coloring layer on one surface of a sheet-like substrate and a heat-sensitive adhesive layer of a heat-sensitive adhesive sheet formed on the other surface. Thermal head for printing, thermal head for activation for heating and activating the thermosensitive adhesive layer, a cutter device for cutting the thermosensitive adhesive sheet, and conveying means for conveying the thermosensitive adhesive sheet And a control unit that controls at least the printing thermal head, the activation thermal head, the cutter device, and the conveying unit,
The distance from the thermal head for activation to the cutting part of the cutter device takes into consideration the conveying speed of the heat-sensitive adhesive sheet by the conveying means, and the cutting position of the heat-sensitive adhesive sheet is at the cutting part of the cutter device. When the temperature reaches, the temperature of the thermal head for activation that has been deactivated and is de-energized is set to a distance that is a predetermined value or less,
The control means conveys the heat-sensitive adhesive sheet so as to pass through the printing thermal head, the activation thermal head, and the cutter device in this order, and the cutting position of the heat-sensitive adhesive sheet is the cutter. The thermosensitive adhesive sheet is conveyed so as to stop at the cutting part of the apparatus, and after the thermosensitive adhesive sheet is cut by the cutter device, the leading end of the remaining part of the thermosensitive adhesive sheet is the thermal head for printing. A printer apparatus that controls to return to the printing position . Printing is performed by contacting a printable surface composed of a thermosensitive coloring layer on one surface of a sheet-like substrate and a heat-sensitive adhesive layer of a heat-sensitive adhesive sheet formed on the other surface. Thermal head for printing, thermal head for activation for heating and activating the thermosensitive adhesive layer, a cutter device for cutting the thermosensitive adhesive sheet, and conveying means for conveying the thermosensitive adhesive sheet And a control unit that controls at least the printing thermal head, the activation thermal head, the cutter device, and the conveying unit,
Thermal head separating means for separating the surface of the thermal head for activation from the heat-sensitive adhesive sheet is further provided,
The control means conveys the heat-sensitive adhesive sheet so as to pass through the printing thermal head, the activation thermal head, and the cutter device in this order, and the cutting position of the heat-sensitive adhesive sheet is the cutter. When the cutting unit of the apparatus is reached, the conveying unit is stopped and the thermal head separating unit is operated, and after the heat-sensitive adhesive sheet is cut by the cutter device, the heat-sensitive adhesive sheet remains. A printer apparatus , wherein control is performed so that the front end of the unit is returned to the printing position of the printing thermal head . The thermal head separating means is
An actuating member provided on a lower surface side of the thermal head for activation and movable up and down together with the thermal head for activation;
The printer device according to claim 3 , further comprising a cam mechanism that contacts a part of the operating rod member and converts a rotational motion into a vertical motion. The thermal head separating means is
An actuating member provided on a lower surface side of the thermal head for activation and movable up and down together with the thermal head for activation;
An actuator that moves up and down in contact with a part of the operating rod member;
The printer apparatus according to claim 3 , comprising: The printer device according to claim 5 , wherein the actuator is configured by any one of a solenoid , a pneumatic cylinder device , and a hydraulic cylinder device. Cutting position of the heat-sensitive adhesive sheet, and characterized in that from a position activating the thermal head for the activation is completed, a non-active site a predetermined distance in a direction opposite to the conveying direction during the activation The printer device according to any one of claims 1 to 6 .

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