JPH0743929U - Thermal label applicator - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a labeling device using a heat-sensitive label. [Structure] A label supply mechanism that supplies a heat-sensitive label, a heating mechanism that heats the adhesive surface of the heat-sensitive label to activate the adhesive, and a label surface of the heat-sensitive label is suction-held on the belt surface with negative pressure. And a conveyor belt that conveys the front surface of the heating mechanism.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a labeling device using a heat sensitive label.

[0002]

[Prior art]

 A conventional label applying apparatus using a heat-sensitive label, the apparatus of Conventional Example 1 is a label supply mechanism for supplying the heat-sensitive labels one by one, a conveying drum for sucking and conveying the supplied heat-sensitive labels to the outer periphery, It consists of a heating mechanism adjacent to the outer circumference of the transport drum, and heats the heat-sensitive label that is sucked and held on the outer circumference of the transport drum to be heated by the heating mechanism during transport to activate the adhesive on the back surface of the label. The label was attached to the adherend that flows while contacting the outer circumference of the transport drum. Further, in the apparatus of Conventional Example 2, as shown in JP-B-60-25371, the belt surface of the conveyor belt for conveyance is supplied so that the adhesive-coated surface of the heat-sensitive label faces, and heating is performed from the printed surface of the label surface. The adhesive on the back side is activated and conveyed while adhering to the belt surface of the conveyor belt for conveyance, and the conveyor belt for conveyance is folded back at an acute angle at the label sticking section and the heat-sensitive label is peeled from the belt and stuck to the adherend. I was wearing it.

[0003]

[Problems to be solved by the device]

 This had the following drawbacks. In the device of Conventional Example 1, since the heat-sensitive label is sucked and held by the negative pressure on the outer periphery of the conveying drum to convey, a suction holding mechanism for controlling the timing of the suction and the release of the suction must be provided in the conveying drum section. However, there is a problem that the mechanism becomes complicated and the manufacturing cost becomes high. Also, in the case of a device that cuts and supplies a band-shaped heat-sensitive label with the label supply mechanism, if the operation is stopped during the transfer of the heat-sensitive label and the negative pressure is cut off, suction is applied to the outer periphery of the transfer drum. There is a problem in that the held thermal label is separated from the outer periphery of the transport drum and the thermal label cannot be used. Further, in the case of an apparatus that intermittently sends out a thermosensitive label in accordance with the passage of the adherend to be fed and labels the thermosensitive label, the rotation of the transport drum is intermittently rotated so as to stand by in front of the labeling section. However, in the case of a device that uses a conveyor drum, the inertial moment of the conveyor drum becomes too large, which increases the size of the device and increases the manufacturing cost, making it unsuitable for a simple labeling device. is there. Further, in the apparatus of Conventional Example 2, since the label surface is heated by the heating mechanism, there is a fatal problem that the ink on which the label pattern is printed is directly heated and burns and discolors depending on the type of ink. There is also a problem that the heat efficiency is poor and a large amount of heat is required because the label surface is heated to activate the adhesive on the back surface. Furthermore, since the adhesive surface is heated toward the conveyor belt for transportation, even if the conveyor belt for transportation uses a belt of a material that has good heat resistance and peeling off from the adhesive, the heated thermal label will adhere to the belt. However, there was a problem that when the label was peeled off from the belt, the adhesive remained little by little and accumulated, and when the device was not used, the adhesive hardened and the belt was damaged.

[0004]

[Means for solving the problem]

 In order to solve the above problems, a label supply mechanism that supplies a thermal label, a heating mechanism that directly heats the adhesive surface of the thermal label to activate the adhesive, and a negative pressure on the surface of the label of the thermal label. Consists of a conveyor belt that sucks and holds on the belt surface and conveys the front surface of the heating mechanism. Further, the apparatus according to claims 2 and 3 is provided with a holding belt or a holding roller, and the heat sensitive label supplied from the label supply mechanism is pressed against the surface of the conveyor belt and conveyed to the position immediately before the heating mechanism. To do.

[0005]

[Action]

 The heat-sensitive label supplied from the label supply mechanism is suctioned and held by the negative pressure on the surface of the label of the heat-sensitive label to pass through the front surface of the heating mechanism, and the adhesive surface of the heat-sensitive label is directly heated to apply the adhesive. Activate it and paste it on the adherend. Further, in the apparatus of claims 2 and 3, the heat-sensitive label supplied from the label supply mechanism is pressed against the conveying belt surface by the holding belt or the holding roller and is conveyed to immediately before the heating mechanism by rotation of the conveying belt. , The heat-sensitive label is suction-held on the conveyor belt by a negative pressure with the adhesive surface facing the heating mechanism side and passed through the front surface of the heating mechanism. The purpose of the holding belt and the holding roller is to press and hold the heat-sensitive label supplied by the label feeding mechanism against the conveyor belt, which allows the heat-sensitive label to be intermittently fed while the conveyor belt is intermittently fed. Supply. When there is no adherend, the thermosensitive label is held by the holding belt or holding roller immediately before the heating mechanism, and the adherend is fed to the label sticking part and at the same time from the waiting position of the conveyor belt. It is sucked and held by the conveyor belt by the sending negative pressure and passes through the front of the heating mechanism. Therefore, in the standby state, the thermal label is held by the holding belt or the holding roller, so the standby state can be maintained even when the operation of the device is stopped and the negative pressure is cut off. Can be used.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a side view of the device of the present invention. This mechanism is composed of a label hopper 11 for storing the heat-sensitive label 1 and a label sucking mechanism 2 for sucking and moving the stored heat-sensitive labels one by one under a negative pressure and transferring the heat-sensitive label 1 to the conveyor belt 3. A label supply mechanism, a transport belt 3 that sucks and holds the heat-sensitive label 1 transferred by the label suction mechanism 2 on the belt surface by a negative pressure, and the negative pressure acts on the surface of the transport belt 3. A suction mechanism 5 for this purpose and a heating mechanism 4 for heating the adhesive surface of the heat-sensitive label 1 conveyed by the conveyor belt 3. This suction mechanism 5 is constructed as shown in the sectional views of FIGS. FIG. 2 shows a cross-sectional view of the suction mechanism 5 as seen from the side surface direction of the conveyor belt 3. The suction mechanism 5 is composed of a suction member 51 provided on the back side of the conveyor belt 3, and the conveyor belt 3 is provided with an infinite number of suction holes 31. The exhaust holes 52 are connected to a negative pressure source such as a vacuum pump to provide a negative pressure. The heat-sensitive label 1 is sucked and held on the belt surface through the suction holes 31 of the conveyor belt 3 by pressure, and the heat-sensitive label 1 is conveyed by the movement of the conveyor belt 3. FIG. 3 shows a sectional view of the suction mechanism 5 as seen from the moving direction of the conveyor belt 3. The suction mechanism 5 is composed of a suction member 51 provided on the back side of the conveyor belt 3, the conveyor belt 3 is composed of a plurality of belts, and a gap between the belts is provided, and an exhaust hole 52 of the suction member 51 and a vacuum are provided. A negative pressure source such as a vacuum pump is connected, and the thermal label 1 is sucked and held on the belt surface by a negative pressure through a belt between the belt of the conveyor belt 3 and the belt, and the thermal label 1 is conveyed by moving the conveyor belt 3. The heating mechanism 5 is composed of a heater that uses radiant heat and a hot air generator. Further, in order to efficiently use the hot air generated by the hot air generator, a blowing member 41 as shown in FIG. 4 is provided on the passage front side of the heat-sensitive label 1, and the hot air is blown into the ventilation hole 42 by the hot air generator. Hot air is blown from the blowing holes 43 communicating with the ventilation holes 42 to uniformly heat the entire surface of the heat-sensitive label 1.

Next, the operation of the apparatus shown in FIG. 1 will be described. The label suction mechanism 2 of the label supply mechanism retracts in the direction of the label hopper-11, approaches the label hopper-11 side, and stores the heat-sensitive label 1 The sheets are adsorbed and transferred to the conveyor belt 3. The transferred heat-sensitive label 11 is suction-held by the conveyor belt 3 by negative pressure and moves to just before the heating mechanism 4 by the movement of the conveyor belt 3, and stands by in front of the heating mechanism 4 when the conveyor belt 3 is stopped. The adherend 6 sent by the conveyor 7 is detected by a sensor or the like, and the conveyor belt 3 is moved according to the detection signal to pass the heat-sensitive label 1 on the conveyor belt 3 under a negative pressure so as to pass through the front surface of the heating mechanism 4. The adhesive applied to the heat-sensitive label 1 is conveyed to the end of the conveyor belt 3 while being activated, and is attached to the adherend 6 that moves close to the end of the conveyor belt 3. Since the end of the suction member 51 is located at the end of the conveyor belt 3, the heat-sensitive label 1 conveyed to the end of the conveyor belt 3 is released from the suction-holding due to the negative pressure and attached to the adherend 6. The movement of the conveyor belt 3 and the operation of the label supply mechanism are performed as a series of operations. While the heat sensitive label 1 is passing through the front surface of the heating mechanism 4, the label supply mechanism supplies the next heat sensitive label 1.

5 and 6 show side views of the device according to claims 2 and 3. The apparatus shown in FIG. 5 is provided with a holding roller 81 on the conveyor belt 3 and configured so that the thermal label 1 supplied from the label supply mechanism is pressed against the conveyor belt 3 and conveyed immediately before the heating mechanism 4. . The apparatus shown in FIG. 6 is configured such that a holding belt 82 is provided on the conveyor belt 3 and the heat-sensitive label 1 supplied from the label supply mechanism is pressed against the conveyor belt 3 and conveyed immediately before the heating mechanism 4.

Next, the operation of the apparatus shown in FIGS. 5 and 6 will be described. The label suction mechanism 2 of the label supply mechanism retracts in the direction of the label hopper-11, approaches the label hopper-11 side, and stores the thermal label. One piece of 1 is adsorbed and transferred to the conveyor belt 3. The transferred heat-sensitive label 11 is pressed against the holding roller 81 or the holding belt 82 and is held by the conveyor belt 3, and is moved to just before the heating mechanism 4 by the movement of the conveyor belt 3, and is heated by stopping the conveyor belt 3. Stand by just before the mechanism 4. The adherend 6 sent by the conveyor 7 is detected by a sensor, etc., and the conveyor belt 3 is moved by the detection signal to pass the heat-sensitive label 1 on the conveyor belt 3 with a negative pressure, and passes the front of the heating mechanism 4. Then, the adhesive applied to the heat-sensitive label 1 is conveyed to the end of the conveyor belt 3 while being activated, and the end of the conveyor belt 3 is attached to the adhering object 6 that moves closer. Since the end of the suction member 51 is located at the end of the conveyor belt 3, the heat-sensitive label 1 conveyed to the end of the conveyor belt 3 is released from the suction-holding due to the negative pressure and attached to the adherend 6. . The movement of the conveyor belt 3 and the operation of the label supply mechanism are performed as a series of operations. While the heat sensitive label 1 is passing through the front surface of the heating mechanism 4, the label supply mechanism supplies the next heat sensitive label 1. Therefore, in the case of the apparatus shown in FIGS. 5 and 6, the heat-sensitive label 1 in the standby state is pressed against the holding roller 81 or the holding belt 82 and held by the conveyor belt 3, so that the work is stopped and the negative pressure is shut off. Even if it does, the thermal label 1 can be kept in the standby state, and the work can be started immediately even when the work is started again. It is also possible to use a label feeding mechanism for feeding the roll-shaped heat-sensitive label 1 one by one while cutting the roll-shaped heat-sensitive label 1 in the apparatus shown in FIGS. 1, 5, and 6.

FIG. 7 shows a side view of an apparatus provided with a label supply mechanism for supplying the single-wafer heat-sensitive label 1 and a marking mechanism 9. This device is a label hopper 11 for storing the heat sensitive label 1 of a sheet, and a label suction mechanism for sucking and moving the stored heat sensitive labels 1 one by one under a negative pressure and transferring the heat sensitive label 1 to the conveyor belt 3. The label feeding mechanism composed of 2 and the marking mechanism 9 that stamps on the surface of the heat sensitive label 1 while rotating by the label sucking mechanism 2 while being transferred, and the heat sensitive label 1 imprinted and transferred is negatively pressured. The conveyor belt 3 that sucks and holds the belt on the belt surface by means of the conveyor belt, the suction mechanism 5 for causing the negative pressure to act on the surface of the conveyor belt 3, and the adhesive surface of the heat-sensitive label 1 conveyed by the conveyor belt 3. It is composed of a heating mechanism 4 for heating.

Next, the operation of the apparatus shown in FIG. 7 will be described. The label suction mechanism 2 of the label supply mechanism retracts in the direction of the label hopper-11, approaches the label hopper-11 side, and stores the heat-sensitive label 1 The sheets are adsorbed and transferred to the conveyor belt 3. During the transfer, the heat sensitive label 1 moves so as to come into contact with the printing roller 91 of the marking mechanism 9. At this time, the outer peripheral speed of the printing roller 91 and the moving speed of the heat-sensitive label 1 are the same, and they are imprinted on the surface. The heat-sensitive label 11 transferred while imprinting is sucked and held by the conveyor belt 3 by negative pressure, moves to just before the heating mechanism 4 by the movement of the conveyor belt 3, and stands by immediately before the heating mechanism 4 by stopping the conveyor belt 3. . The adherend 6 sent by the transport conveyor 7 is detected by a sensor or the like, and the detection signal causes the conveyor belt 3 to move so that the heat sensitive label 1 is held on the conveyor belt 3 at a negative pressure. The adhesive applied to the heat-sensitive label 1 is passed and conveyed to the end of the conveyor belt 3 while activating the adhesive, and the end of the conveyor belt 3 is attached to the adhering object 6 that moves closer. Since the end of the suction member 51 is located at the end of the conveyor belt 3, the heat-sensitive label 1 conveyed to the end of the conveyor belt 3 is released from the suction and hold due to the negative pressure and adheres to the adherend 6.

FIG. 8 shows a side view of a label supply mechanism for supplying the roll-shaped heat-sensitive label 1 and an apparatus using the marking mechanism 9. This device is equipped with a roll-shaped heat-sensitive label 1 to which the roll-shaped heat-sensitive label 1 is appropriately fed, a feeding roller 13 for feeding the roll-shaped heat-sensitive label 1 in a fixed amount, and cutting the fed heat-sensitive label 1. The cutter 14 and the marking belt 91 that sucks and holds the cut thermal label 1 by negative pressure and conveys it, and the thermal label 1 that is conveyed from the marking belt 91 sucks and holds it on the belt surface by negative pressure. The transport belt 3 is configured to be transported, a suction mechanism 5 for applying a negative pressure to the surface of the transport belt 3, and a heating mechanism 4 for heating the adhesive surface of the heat-sensitive label 1 transported by the transport belt 3.

Next, the operation of this apparatus will be described. The heat-sensitive label 1 pulled out from the roll base 12 by the rotation of the feed roller 13 is fed to the cutter 14 by a fixed amount and cut by the cutter. The negative pressure causes the belt surface of the marking belt 91 to be sucked, held, and conveyed. When the marking belt 91 is stopped, the marking machine 9 operates to mark on the surface of the heat-sensitive label 1 waiting on the marking belt 91. The imprinted heat-sensitive label 1 is conveyed to the conveyor belt 3 by the marking belt 91 in the next operation, is suction-held by the conveyor belt 3 by negative pressure, and is moved to immediately before the heating mechanism 4 by the movement of the conveyor belt 3, and conveyed. When the belt 3 is stopped, it stands by immediately before the heating mechanism 4. The adherend 6 sent by the transport conveyor 7 is detected by a sensor or the like, and the detection signal causes the conveyor belt 3 to move so that the heat-sensitive label 1 is held on the conveyor belt 3 at a negative pressure. The adhesive applied to the heat-sensitive label 1 is passed and conveyed to the end of the conveyor belt 3 while being activated, and the end of the conveyor belt 3 is attached to the adhering object 6 that moves closer. Since the end of the suction member 51 is located at the end of the conveyor belt 3, the heat-sensitive label 1 conveyed to the end of the conveyor belt 3 moves and is released from the suction and hold due to the negative pressure and adheres to the adherend 6.

[0014]

[Effect of device]

 Compared with the device of Conventional Example 1, this device has a simple mechanism for sucking and holding the heat-sensitive label 1 and a simple structure because it is not affected by inertial moments, so the manufacturing cost is low and the price is low. A device can be provided. Further, the same negative pressure is used to hold the thermal label 1. However, even if the negative pressure is cut off, the thermal label 1 waiting in front of the heating mechanism can be held and the waste of the label can be saved, and the work can be performed. You can freely suspend your work. Further, as compared with the device of Conventional Example 2, since the adhesive surface of the heat-sensitive label 1 is directly heated, the heat efficiency is good and the adhesive can be activated with a small amount of heat. Moreover, since the printing surface is not directly heated, there is no problem of discoloration of printing ink. Further, since the adhesive does not reach the conveyor belt 3, there is no problem that the adhesive adheres to the belt surface and is accumulated, and the damage of the belt due to the adhesion of the adhesive does not occur.

[Brief description of drawings]

FIG. 1 is a side view of the device of the present invention.

FIG. 2 is a sectional view of a suction mechanism.

FIG. 3 is a sectional view of a suction mechanism.

FIG. 4 is a perspective view of a blowing member.

FIG. 5 is a side view of the device of the present invention.

FIG. 6 is a side view of the device of the present invention.

FIG. 7 is a side view of the device of the present invention.

FIG. 8 is a side view of the device of the present invention.

[Explanation of symbols]

 1 Thermal Label 2 Label Sucking Mechanism 3 Conveyor Belt 4 Heating Mechanism 5 Suction Mechanism 6 Adhered Items 7 Carrying Conveyor 9 Marking Mechanism 11 Thermal Label 12 Roll Stand 13 Feed Roller 14 Cutter 41 Blowup Member 42 Vent Hole 51 Suction member 91 Printing roller 92 Marking belt

Claims (4)

[Scope of utility model registration request] 1. A label applying apparatus using a heat-sensitive label, a label supply mechanism for supplying a heat-sensitive label, a heating mechanism for heating an adhesive surface of the heat-sensitive label to activate the adhesive, and a label for the heat-sensitive label. A heat-sensitive labeling device that is composed of a conveyor belt that conveys the front surface of the heating mechanism by suction holding the surface of the belt with a negative pressure. 2. The heat-sensitive label according to claim 1, wherein the heat-sensitive label transferred from the label supply mechanism for supplying the label is constituted by a holding belt for pressing the heat-sensitive label against the surface of the conveyor belt and rotating the conveyor belt to immediately before the heating mechanism. Labeling device. 3. A holding roller for transporting the heat-sensitive label transferred from the label supply mechanism for supplying the label to the surface of the conveyor belt and rotating it together with the conveyor belt to immediately before the heating mechanism. 1 Thermal label applying device. 4. The heat-sensitive label transferred from the label supply mechanism to the conveyor belt is imprinted by providing a marking mechanism between the label supply mechanism for supplying a label and the conveyor belt. Item 3. A heat-sensitive label applying device according to item 3.