JPH0733626U - Laminator - Google Patents

Abstract

(57) [Abstract] [Purpose] A sheet-shaped article sandwiched between rollers for pressure-bonding and transporting a plastic film having a heat-melting adhesive to a sheet-shaped article without removing the case and disassembling around the rollers. The purpose is to provide a laminator that can be easily removed without damaging it. In order to rotate the roller, one of the gears arranged between the drive shaft of the electric motor and the rotation shaft of one roller can be moved so as to be out of mesh with the other fixed gear. To install. The gear is positioned so as to be meshed with another fixed gear by constantly urging the gear with a spring, and a follower is continuously provided. An operation lever having a stepped portion whose one end is exposed outside the case body is disposed so as to be connected to the follower so as to form a cam mechanism with the follower and the stepped portion. The operation lever is operated to disengage the gear from meshing with another fixed gear.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a laminator for sealing a sheet-like article with a plastic film.

[0002]

[Prior art]

 Conventionally, sheet-like articles such as commuter passes, business cards, photographs, pressed flowers, etc. have been sealed with a plastic film having a heat-meltable adhesive layer to prevent them from becoming dirty or scratched. The technology to make the above is well known, and a large number of laminators, which are devices therefor, are provided. The basic structure of the main laminator is the heater play for melting the heat-fusible adhesive provided on the plastic film and for thermally deforming the plastic film so that it fits into the sheet-like article and seals. And a pair of rollers for pressing and transporting at least the plastic film and the sheet-like article. The pair of rollers conveys the sheet-like article. One roller rotates the electric motor by disposing several gears between the drive shaft of the electric motor and the rotation shaft of the one roller. In addition to transmitting force to enable rotation, the other roller is structured to rotate in the opposite direction to the one roller.

[0003]

[Problems to be solved by the device]

 Due to the structure of the laminator, the sheet-like article sealed with the plastic film is inserted between the rollers, so if the sheet-like article was too thick, it was sometimes caught between the rollers. In such a case, the sheet-like article was pulled in the front-back direction of the rollers to be separated from between the rollers. However, since the roller is connected to the electric motor via the gear by simply pulling it, the roller does not rotate easily due to the load, so that the sheet-like article or plastic film is rubbed on the roller surface and scratched. There were some things that happened.

Some laminators have a structure in which the rotation of the rollers can be reversed in consideration of the situation where the sheet-shaped article is sandwiched between the rollers, but the rotation force of the electric motor is not so large. Since it is not strong, even if the electric motor is rotated in the reverse direction and the part of the sheet-shaped article is pulled as described above, the roller will not rotate and the sheet-shaped article may not be separated from the rollers. is there. Further, since the rollers are forced to rotate in the reverse direction, the plastic film may be wrapped around the rollers in some cases, which may make it impossible to remove the sheet-shaped article from between the rollers.

When the sheet-like article cannot be separated from the rollers by such a method, the laminator case is removed, the rollers are disassembled to separate the rollers from each other, and the sheet-like article is separated from the rollers. There must be. However, disassembling around the roller is not preferable for the following reasons. As mentioned above, the heater plate is provided inside, and the temperature is high at about 100 ° C or higher during operation. For this reason, the temperature does not drop sharply even if the power is turned off, and the high temperature is maintained.In order to disassemble the area around the roller, tightening or loosening small-diameter screws, etc. It is highly possible that your fingers or hand will accidentally touch the heater plate during work, which may cause burns.

In order to solve these problems, the present invention provides a structure in which a sheet-like article sandwiched between rollers can be easily removed without removing the laminator case and disassembling around the roller. The purpose is to provide a laminator.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is for sealing a sheet-like article with a plastic film having a heat-meltable adhesive layer, and for melting at least the heat-meltable adhesive layer of the plastic film. A heater plate and a pair of rollers for pressing and transferring the plastic film and the sheet-like article are provided. One roller of the pair of rollers is provided between the rotary shaft and the drive shaft of the electric motor. In the laminator having the structure in which the gears are meshed with each other and can be rotated by the rotation of the electric motor, and the other roller is rotatable in the opposite direction to the one roller, the drive shaft of the electric motor One of the gears arranged between the rotation shaft of one roller and the other roller is movably attached so that it is out of mesh with the other fixed gear, and it is always attached with a spring. Then, the gear is positioned so as to mesh with the other fixed gear, and a follower is connected to the gear, and an operating lever having a step portion whose one end is exposed outside the case body is provided between the follower and the step portion. The cam mechanism is arranged so as to be connected to the follower so that the gear can be disengaged from the mesh with another fixed gear by operating the operation lever.

The laminator in the present invention is for sealing a sheet-like article with a plastic film. The term "sealing" means not only wrapping the sheet-like article with the plastic films arranged above and below but also the sheet-like article. It also includes covering the surface of the article with a plastic film.

A feature of the present invention resides in that one of the gears arranged between the drive shaft of the electric motor and the rotation shaft of one of the pair of rollers is movably attached. It may be a gear attached to the drive shaft of the motor and is not particularly limited.

[0010]

[Action]

 A cam mechanism is formed by a step formed on the operation lever and a follower connected to one of the gears arranged between the drive shaft of the electric motor and the rotation shaft of one of the pair of rollers. Therefore, the gear is moved by the operation of the operation lever, and is disengaged from the mesh with other fixed gears. Therefore, the pair of rollers are free from the load of the electric motor and can rotate freely.

Further, since the movable gear is positioned so as to be biased by the spring and mesh with the other fixed gear, when the operation lever is returned to the original state, the gear again moves to another gear. Return to the position where it meshes with the fixed gear, and then mesh with the other fixed gear. Even if the tooth tips of the gear and other fixed gears do not come into contact with each other by collision, the drive shaft of the electric motor is rotated because it is biased by the spring to the meshing position as described above. For example, the tooth tips are displaced and mesh with each other.

[0012]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. The laminator 1 of the present embodiment has an insertion opening (not shown) for laminating a sheet-like article (not shown) sandwiched between plastic films (not shown) having a heat-meltable adhesive layer inside. In order to melt the heat-fusible adhesive of the plastic film at a position corresponding to the insertion port, the case film 2 is fitted to the case body 2 and the plastic film is adapted to the sheet-like article. Heater plates 4 and 4 ′ heated by a heater 3 of an attached ceramic heater (product name: heater posistor manufactured by Murata Manufacturing Co., Ltd.) for heat deformation so as to be sealed are arranged vertically apart from each other. I am doing it.

Behind the heater plates 4 and 4 ′, they are vertically arranged so that their surfaces are in contact with each other, and the contact surfaces are located in the separating portions 5 of the heater plates 4 and 4 ′. 6 and 7 are rotatably attached.

Similar gears 10 and 11 are attached to one ends of the rotary shafts 8 and 9 of the rollers 6 and 7, respectively, with tooth tips meshing with each other. A gear 12 is attached to the other end of the rotary shaft 8 of the lower roller 6.

A motor blanket 15 having an electric motor 14 attached to the outside is connected to one standing piece 13 of the case body 2 so as to be spaced apart so that the gear 12 is present therein. The electric motor 14 is fixedly attached to the motor blanket 15 at one point, and can swing about the fixed point P. The electric motor 14 internally has several gears so that the rotational output of the drive shaft 16 does not increase.

The drive shaft 16 of the electric motor 14 projects through the through hole 17 formed in the motor blanket 15 toward the standing piece 13 side. A gear 18 that meshes with the gear 12 is attached to the tip thereof.

The pitch circles and the number of teeth of the gears 10, 11, 12, and 18 attached to the respective places, and the electric motor 14 and the heater plates 4 and 4 ′ are the same as those used in the conventional laminator. Since it is the same as the one that is present, it is not described in detail.

A protrusion 19 is attached to the electric motor 14, and a bar 20 is attached to the protrusion 19 toward the outside. A coil spring 22 whose one end is fixed to a base 21 of the case body 2 is attached to the rod-shaped body 20, and the electric motor 14 is pulled and positioned so that the gear 18 always meshes with the gear 12. A plate-shaped follower 23 extending toward the base 21 is swingably attached to the inside of the projecting piece 19. The follower 23 is formed so that the motor blanket 15 is sandwiched between the electric motor 14 and the projecting piece 19 so that the electric motor 14 does not rattle when swinging.

Below the follower 23, a plate-like operation lever 24 is arranged on the base 21 so as to mount the follower 23. The tip of the operating lever 24 is exposed to the outside when the case body 2 is covered with a case (not shown), and is bent in an L shape so as not to be buried in the case body 2. . The operating lever 24 is arranged so as to be movable back and forth in the longitudinal direction thereof, and is held by a holding plate 25 so as not to rattle during movement. A convex step portion 26 is formed at a position behind (right side in FIG. 3) the pressing plate 25. The step 26 and the follower 23 form a cam mechanism.

A power supply circuit section 27 is arranged in front of the heater plates 4, 4 '. The power supply circuit section 27 is connected to the heaters 3 attached to the heater plates 4 and 4'and the electric motor 14 by cords 28 (codes in the middle are omitted), and a power switch ( (Not shown) is energized, the heater 3 is energized, and when the heater plates 4, 4'are warmed, it is detected, a lamp (not shown) is turned on, and the electric motor 14 is energized. It has the function of controlling the drive shaft 16 to rotate.

Next, the operation of separating the sheet-shaped article from between the rollers 6 and 7 will be described. The power switch may or may not be turned off, but first the operation lever 24 is pulled toward you. Then, the operation lever 24 moves forward, the follower 23 rides on the convex step portion 26, and lifts the electric motor 14 obliquely upward as shown in FIG. Since the gear 18 attached to the drive shaft 16 of the electric motor 14 also moves, the meshing with the gear 12 attached to the rotary shaft 8 of the lower roller 6 is disengaged.

Since the pair of rollers 6 and 7 are released from the load of the electric motor 14, the pair of rollers 6 and 7 can be easily rotated, and the pair of rollers 6 and 7 can be easily rotated by pulling or pushing the sheet-shaped article to move the pair of rollers 6 and 7. The rollers 6 and 7 also rotate, and the sheet-shaped article can be easily separated from between the rollers 6 and 7.

When the operation lever 24 is returned to the original state after the sheet-shaped article is removed, the coil spring 22 attached to the projecting piece 19 of the electric motor 14 causes the electric motor 14 to constantly drive the gear 18 attached to its drive shaft 16. Is positioned so as to be meshed with the gear 12 attached to the rotary shaft 8 of the roller 6, the electric motor 14 is also returned to its original position, and the gear 18 and the gear 12 are meshed again, and the pair of rollers 6 , 7 can be rotated again.

[0024]

[Effect of device]

 In the laminator of the present invention, one of the gears arranged between the drive shaft of the electric motor and the rotation shaft of one of the pair of rollers is attached in the structure as described above, so that the operation lever can be pulled. As a result, the pair of rollers are released from the load of the electric motor, so that the rollers can easily rotate, and the sheet-like article sandwiched between the rollers can be easily removed without damaging the sheet-like article. Further, for this reason, there is no need to disassemble the rollers 6 and 7, so that the heater plates 4 and 4'are not contacted with and burned.

When the gear is returned to the original state, even if the tooth tips of other fixed gears collide with each other and do not mesh well, the gear is attached by the attached spring. Since the teeth are positioned so that they are urged to mesh with each other, if the position of the tooth tip of the gear is slightly shifted by the rotation from the electric motor, the tooth tips will be meshed. Therefore, it is not necessary to repeatedly operate the operation lever or open the case to engage the teeth of the gear so that the teeth are engaged, and the operability is good.

[Brief description of drawings]

FIG. 1 is a perspective view showing the internal structure of a laminator of this embodiment.

FIG. 2 is a front view showing the internal structure of FIG.

3 is a right side view showing the internal structure in FIG. 1. FIG.

4 is a cross-sectional view taken along the line AA in FIG.

5 is a diagram showing a state in which an operation lever is operated in FIG.

[Explanation of symbols]

 1 Laminator 2 Case Body 4, 4'Heater Plate 6, 7 Roller 8, 9 Rotating Shaft 12 Gear 14 Electric Motor 16 Drive Shaft 18 Gear 22 Spring 23 Follower 24 Operation Lever 26 Step Section

Claims (1)

[Scope of utility model registration request] 1. A heater plate for sealing a sheet-like article with a plastic film having a heat-melting adhesive layer, for melting at least the heat-melting adhesive layer of a plastic film, a plastic film and a sheet. And a pair of rollers for pressing and transferring the shaped article, wherein one roller of the pair of rollers is disposed by meshing several gears between its rotary shaft and the drive shaft of the electric motor. A laminator having a structure in which the other roller is rotatable in response to rotation of the electric motor, and the other roller is rotatable in the opposite direction to the one roller. The laminator is disposed between the drive shaft of the electric motor and the rotation shaft of the one roller. One of the fixed gears is movably attached so that it is out of mesh with the other fixed gears, and it is constantly urged by a spring to engage with the other fixed gears. Positioned so that they mesh with each other, a follower is continuously connected to the gear, and an operation lever having a stepped portion whose one end is exposed to the outside of the case main body is driven so as to form a cam mechanism with the follower and the stepped portion. A laminator arranged so as to be connected to a child so that the gear is disengaged from meshing with another fixed gear by operating an operation lever.