JPH036477Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a thermopressure device used for lining or smoothing out wrinkles when mounting calligraphy, painting, embroidery, etc.

PRIOR TECHNOLOGY AND PROBLEMS In this type of device, in order to prevent the occurrence of wrinkles in the calligraphy, drawings, etc. that are subject to heat pressure and to obtain a good finish on the mounting, etc., it is necessary to uniformly cover the entire member to be pressed during heat pressure. It is necessary to press with force. In addition, since the optimal pressing force to be applied to the pressurized member differs slightly depending on the material of the pressurized member and the purpose of applying pressure, it is also desirable to be able to finely adjust the pressing force. .

However, conventionally known thermopressure devices have not been able to fully satisfy either of these requirements. That is, as shown in FIG. 4, this type of heat-pressing device that has been commonly used in the past has a pressure plate 2 equipped with a heater on one side of a fixed pedestal 1, which is rotatable around a shaft 3. When used, the pressure plate 2 is rotated in the closing direction relative to the pedestal 1, and the pressurized member 4 placed on the pedestal 1 is heated and pressed. In particular, when the pressurized member 4 is a thick material, such as a thick material, the pressurized member 4 may be pressed in an inclined state before the pressurizing plate 2 is parallel to the pedestal 1. As a result, the pressing force becomes uneven and the pressed member 4
It was easily wrinkled.

Furthermore, conventional means for applying the pressing force mainly utilize hydraulic pressure, air pressure, spring force, etc., and therefore it has been difficult to finely adjust the pressing force.

On the other hand, as an attempt to improve some of the problems with the above-mentioned thermopressure apparatus, recently, as shown in Japanese Utility Model Publication No. 58-4960, the pressurization plate is driven up and down via a toggle mechanism. A thermopressure device has been proposed in which a large pressurizing force can be applied during pressing by supporting the pressurized body, and the pressurizing force can be adjusted to a certain extent by manually operating the toggle mechanism. however,
The thermopressure device according to this prior proposal adopts a toggle mechanism to control the lifting and lowering operation of the pressure plate.
The pressure plate becomes completely horizontal at the lowest dead center point where the toggle link becomes straight, and if the thickness of the pressurized member is not uniform, it is necessary to apply a uniform pressing force over the entire surface. It was difficult to obtain. For example, if the pressurized member is not thick enough, one part of the pressure plate will come into contact with the pressurized member before the other parts, just as in the conventional product, and it will not necessarily be possible to apply an even pressing force to the entire surface. On the other hand, if the material is thin, a sufficient desired pressing force cannot be applied to the pressurized member. Of course, this problem can be solved by adjusting the height position of the pressure plate relative to the pedestal in advance according to the thickness of the pressurized member, but such adjustment work is actually quite troublesome. Moreover, accurate relative position adjustment is often not possible, and there is a great possibility that problems such as wrinkles in the pressurized member may occur. Further, since a toggle mechanism is used to adjust the pressing force, it has been impossible to adjust the pressing force by greatly increasing or decreasing it depending on the type of the pressurized member. Therefore, there was an essential problem that the adaptability to different types of pressurized members having different thicknesses was poor.

This idea was made in view of these circumstances, and regardless of the thickness of the pressurized member,
It is an object of the present invention to provide a thermopressure device for mounting, etc., which can apply a uniform pressing force over the entire surface and also allows fine adjustment of the pressing force.

Means for Solving the Problems In order to achieve this objective, this invention adopts a vertical lift type as a method of moving the pressure plate, and also uses a motor drive device to move the pressure plate up and down, and when lowering We focused on the fact that the force with which the pressurized member presses the pressurized member when it comes into contact with the pressurized member and then tries to descend further changes continuously depending on the descending operation time of the pressure plate, and the The present invention is characterized in that the pressing force applied to the pressurized member is finely adjusted by variably setting the pressure applied to the pressurized member.

That is, this invention includes a pedestal 10 for horizontally mounting and supporting a pressurized member 50 such as calligraphy, backing paper, etc., a heater installed inside the pedestal 10, and a pedestal 10 mounted above the pedestal 10.
A pressure plate 14 which is disposed opposite to the ground and supported vertically so as to be movable up and down, a drive device including a motor 19 that drives the pressure plate 14 up and down, and a lowering operation time of the pressure plate 14 by the drive device 19. The gist of the present invention is a thermopressure device for mounting, etc., which is equipped with a timer 36 that variably sets the pressing force applied to the pressurized member 50 by adjusting it.

Embodiments The configuration of this invention will be described below with reference to illustrated embodiments.

In FIGS. 1 to 3, reference numeral 10 denotes a flat pedestal, and the pedestal 10 is supported by the lower ends of left and right side arms 11, 11 on both sides in the longitudinal direction. The pedestal 10 has a board 12 made of plywood, plywood, etc. placed on its upper surface, and a board 1
The pressurized member 50 is placed and supported in a horizontal state via a mat 13 made of felt, rubber, etc. placed on the upper surface of the pressurized member 2 .

Above the pedestal 10, a flat pressure plate 14 is provided.
are placed facing each other. This pressure plate 14 is equipped with a space heater, and a lower surface 14a that is in contact with the mat 13 serves as a pressure heating surface. Further, on the upper surface of the pressure plate 14, side frames 11, 1
Two racks 16, 16 protrude upwardly through a horizontal mounting plate 15 fixed to the upper part of the rack 1.
Two pinions 1 fixed to the rotating shaft 17 of the book
8 and 18 are meshed with each other. Therefore, by rotation of the rotating shaft 17, the pressure plate 14 can be freely moved in the vertical direction via the pinions 18, 18 and the racks 16, 16.

A rotating shaft 1 is attached to the upper end of the horizontal mounting plate 15.
A motor 19 for applying rotational force to the motor 7 and a worm reducer 20 for decelerating the rotation of the motor 19 are installed, and a torque limiter 21 is connected to the input shaft of the worm reducer 20.
Then, the output shaft of the motor 19 and the torque limiter 2
1 are connected by a belt 22, while the output shaft of the worm reducer 20 and the rotating shaft 17 are connected via a chain 23 that spans sprockets 20a and 17a provided on both shafts. .
The torque limiter 21 is activated when the force pressing the pressurized member reaches a certain value when the pressure plate 14 is about to descend beyond the lowering limit,
This is for protecting the motor 19 against overload. Therefore, the capacity of the torque limiter 21 should be selected depending on the output capacity of the motor 19.

In addition, 24 in the figure is the bearing of the rotating shaft 17, and 25
is a limit switch which detects the maximum raised position of the pressure plate 14 by coming into contact with the upper end of one of the racks 16, and outputs a motor stop signal.

In FIG. 2, reference numeral 30 indicates an operation panel of the thermopressure apparatus according to this invention, and the operation panel 30 includes a heater circuit breaker 31, a heater power switch 32, a heater temperature setting device 33, Rise indicator lamp 34, operation button 35 for starting the operation of the motor 19, timer 36 for setting the pressing force, timer 37 for setting the heat pressure time, pressure plate rise button 3
8, a pressure plate stop button 39, fuses 40 for various circuits, etc. are provided.

The pressing force setting timer 36 is connected to the motor 19.
By setting the descending operation time T of the pressure plate 14 via the . T ₁ ,
Letting t be the time it takes for the torque limiter 21 to operate after coming into contact with the pressurized member, the time can be set approximately within the range T ₁ <T < T ₁ +t.

The heat pressure time setting timer 37 is connected to the pressure plate 1.
By setting the time from the start of the downward movement to the start of the upward movement in step 4, the heat pressure time for the pressurized member is set. Further, the pressure plate rise button 38 and the stop button 39 are used to raise and stop the pressure plate 14 by manual operation regardless of the operation of the timer.

Operation of the example Next, the operation of the illustrated embodiment will be explained.

For example, when backing a calligraphy or painting during mounting work, the pressurized member 50 is placed on the mat 13 by overlapping the backing paper whose surface has been coated with hot melt in advance and the work. Next, the heater temperature is set to a range of, for example, 80° C. to 100° C. using the heater temperature setting device 33, and the circuit breaker 31 and heater power switch 32 are turned on. Next, the pressing force setting timer 36 is set to, for example, about 6 seconds to 7 seconds depending on the pressing force to be applied to the pressurized member 50, and furthermore, the pressing force setting timer 36 is set to about 6 seconds to 7 seconds depending on the pressing force to be applied to the pressurized member 50. After setting the timer 37 to, for example, about 30 seconds, the operation button 35 is turned on to rotate the motor 19 in a predetermined direction. motor 19
The driving force is transmitted to the rotating shaft 1 via a worm reducer 20.
As a result of the rotation of the rotating shaft 17, the pressure plate 14 starts to descend via the pinion 18 and the rack 16.

Since the pressure plate 14 continues to descend until the time set by the timer 36 has elapsed even after contacting the pressurized member 50, the pressing force applied to the pressurized member 50 increases continuously during this time. Then timer 3
6, the pressure plate 14 stops descending when the set time elapses. Since the pressure plate 14 is configured to move up and down vertically while maintaining parallel and opposing state to the pedestal 10, when the pressure plate 14 is not pressurized, a uniform pressing force is applied to the entire pressurized member 50. is applied, and wrinkles do not occur on the pressurized member 50.

When the time set by the heat pressure time setting timer 37 has elapsed, the motor 19 rotates in the reverse direction and the pressure plate 14
However, when the upper end of one rack 16 rises until it comes into contact with the limit switch 25, the pressure plate 14 stops and prepares for the next pressurization operation.

Effects of the device As explained above, this device employs a vertical lifting method to move the pressure plate, and as a result, it is possible to perform hot pressure while maintaining the pressure plate parallel to the pedestal. A uniform pressing force can be applied to the entire surface of the pressure member regardless of its thickness. Furthermore, since the timer is configured to variably set the lowering operation time of the pressure plate via the drive device, the lowering operation time of the pressure plate is continuously increased after contact with the pressurized member. As the pressing force can be set simply by adjusting the timer, the pressing force can be finely adjusted extremely easily, and the optimal pressing force can be applied to the pressed member depending on the material of the pressed member, the purpose of pressing, etc. can be granted. Therefore, if the thermopressure device according to this invention is used for mounting, etc., it is possible to produce hanging scrolls, frames, etc. with extremely good wrinkle-free finishes.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of this invention, with Figure 1 being a side sectional view, Figure 2 being a front view, Figure 3 being a plan view, and Figure 4 being a conventional heat pressure FIG. 2 is a perspective view of the device. 10... pedestal, 14... pressure plate, 19... motor, 36... timer for setting pressing force, 50... pressurized member.

Claims (1)

[Scope of utility model registration request] A pedestal 10 for horizontally mounting and supporting a pressurized member 50 such as a calligraphy, backing paper, etc., and a heater installed therein, are placed above the pedestal 10 facing the pedestal 10, and are moved up and down vertically. A pressurizing plate 14 that can be supported, and a motor 1 that drives the pressurizing plate 14 up and down.
9 and a timer 36 for variably setting the pressing force applied to the pressurized member 50 by adjusting the lowering operation time of the pressure plate 14 by the driving device 19. Thermopressure equipment.