JPH0310504B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) This invention is useful when bonding a fabric coated with an adhesive such as a synthetic resin to an object by heating and pressurizing it on the back side, or when marking with paint or pigment is applied. Regarding the press machine used to transfer marks, etc. onto the fabric by heating and pressing the fabric onto the transfer paper on which it has been printed, in more detail, it is necessary to accurately grasp the pressure applied by the upper trowel. The present invention relates to a press machine that can always apply an appropriate pressing force to a workpiece.

(Prior art) Generally, the conditions for performing these pressing operations are heating temperature, heating time, and pressing force, and it is necessary to adjust these three conditions according to the type of workpiece to be bonded or transferred. Ta.

However, although the heating temperature and heating time can be easily adjusted by controlling the electric motor using a thermostat or timer, it is possible to accurately grasp the pressure applied by the upper trowel using a simple method. There was no press machine used for contact or transfer that could apply an appropriate pressure to the workpiece.

For example, a press machine as shown in Japanese Utility Model Application Publication No. 175044/1983 shown in FIG. 9 has been proposed.

The press machine of this invention has a movable upper plate attached to its upper surface, a worm 20 for adjusting the pressing force applied to the fixed lower plate 1, a fixed lever 11 for opening and closing the movable upper plate 2, and a pressure lever 10 for pressurizing the fixed lower plate 1. Board 2
and a fixed lower base 1 connected to the movable upper plate 2 so as to be able to open and close vertically, and a worm 20.
By adjusting the pressure, a constant pressing force was applied to the fixed lower base 1.

However, the pressurizing force in the press machine of this invention is grasped by the worm 20 that adjusts the pressurizing force applied to the fixed lower table 1, and the pressurizing force actually applied to the fixed lower table 1 is not grasped. Ta.

Therefore, when the types of workpieces are different, for example, when pressing thin items such as T-shirts and thick items such as judo uniforms or exercise clothes,
Worm 2 that adjusts the pressure applied to the fixed lower base 1
Since the pressurizing force is determined at 0, the pressurizing force that includes mechanical errors is applied, and the pressurizing force may be insufficient for thick fabrics, or high for thin fabrics. This caused the following problem.

For this reason, there has been a demand for a press machine that can accurately determine the pressing force applied by the upper trowel, and thereby can always apply an appropriate pressing force to the workpiece.

(Problems to be Solved by the Invention) The present invention is capable of ascertaining the exact pressure applied by the upper trowel to any workpiece to be bonded or transferred, thereby ensuring that the pressure is always appropriate. The present invention aims to provide a press machine used for adhesion, transfer, etc., which can apply a strong pressure to a workpiece.

(Means for Solving the Problems) This invention was made in view of the above-mentioned problems. This is a press machine that heats and presses a lower iron with a workpiece sandwiched between them, and a fixing plate is fixed to the back side of the lower iron via a spring body, and the amount of deflection of this spring body is equal to the lower iron. The gist of the press machine is that the press machine is characterized in that the detection is made by the change in current caused by the approach and separation of a magnetic body attached to the back surface of the iron and a coil attached to the fixing plate.

(Function) Therefore, in the press machine of the present invention, the pressing force applied to the workpiece such as a T-shirt or exercise clothes by tilting the movable upper plate equipped with the upper iron is transferred between the fixed plate and the lower plate. The amount of deflection is taken as the amount of deflection of the spring body interposed between the iron and the iron, and the amount of deflection is measured as the approach of the magnetic body attached to the back side of the lower iron to the coil on the fixed plate fixed to the back side of the lower iron via the spring body. Detection is based on electrical changes caused by separation.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail by way of example with reference to the drawings. However, unless there is a specific description, the shapes and relative positions of the components described in this example are not intended to limit the scope of the invention to these, but are merely illustrative examples. Only.

Now, as shown in FIGS. 1 to 5, the press machine used for adhesion or transfer of the present invention has a spring body 55
A fixed lower stand 50 equipped with a lower iron 53 supported by a lower iron 53 and a detector for detecting the compression distance of this spring body 55.
and a movable upper plate 40 provided with an upper iron 41 that applies pressure to the lower iron 53.

First, the movable upper plate 40 provided with the upper iron 41 that pressurizes the lower iron 53 will be explained.

As shown in FIGS. 1 to 3, an upper trowel 41 for pressurizing a lower trowel 53 is provided on the lower surface of the movable upper plate 40. As shown in FIGS. The upper trowel 41 is formed by pasting a silicone sponge S, and an electric heater (not shown) for heating the upper trowel 41 is embedded in the back surface thereof. A lower iron 53 is provided on the upper surface and rear end of the movable upper plate 40.
A pressurizing force adjustment mechanism (not shown) is attached to apply a predetermined pressurizing force to the pressurizing force. Note that this pressurizing force adjustment mechanism is similar to that shown in FIG. 9.

Further, a pressure adjustment knob 42 is attached to the front right side of the pressure force adjustment mechanism, and a pressure lever 43 and an upper trowel opening/closing lever 44 are rotatably arranged in parallel at the upper center. Further, on the left side of the front end of the pressurizing force adjustment mechanism, there is provided an identification mechanism (not shown) for identifying electrical changes due to pressurizing force, and a display lamp 45 that displays signals identified by this mechanism in a stepwise manner.

Next, a fixed lower stand equipped with a lower iron supported by a spring body and a detector for detecting the compression distance of this spring body, which is a feature of the present invention, will be described.

As shown in FIGS. 1 to 5, the lower fixed base 50 has a substantially trapezoidal box shape, and a box cover 51 is integrally formed in the front part of the lower fixed base 50. It is beginning to be set up.

Further, as shown in FIG. 1, a timer unit 81 for adjusting the heating time is attached to the rear left end of the fixed lower base 50, a thermostat 82 for adjusting the heating temperature is disposed at the rear right end, and a movable upper plate An electric heater (not shown) is embedded in the movable upper plate 40 via a switch (not shown) that is linked to the opening and closing of 40.
is controlled.

As shown in FIG. 3, the box cover 51 formed at the front part of the fixed lower base 50 is formed in a box shape.
The top is open.

Near each corner of the bottom, there are rod-shaped projections 5.
4 is formed and inserted into the spring body 55 to lower the lower iron 53.
The fixing plate 52 fixed to can be restrained.

In the case of the fixed plate 52, a crater-shaped circular groove portion 56 is formed near each corner of one surface thereof to restrain one end of the spring body 55. Further, in order to attach a coil 58 as a detector to the center of the fixed plate 52, two rods 60 having screw holes inside thereof are protruded, and the coil 58 is attached to the upper part of the rods 60. ing.

Furthermore, fixing holes 61 for fixing the fixing plate 52 to the lower iron 53 are provided at the side ends of two opposing sides of the fixing plate 52.

As shown in FIG. 3 and FIGS. 7 and 8, the lower iron 53
A crater-shaped circular groove 56 is formed near each corner of the back surface to restrain the other end of the spring body 55, which is the same as the fixed plate 52, and a magnet 62, which is a magnetic material, is attached to the adhesive in the center of the groove. It is glued and installed.

Furthermore, screw holes are threaded in the two opposing sides of the lower trowel 53 to match the fixing holes 61 of the fixing plate 52. In this way, the fixing plate 52 is fixed to the back side of the lower iron via the spring body 55.

Furthermore, cloth is pasted on the surface of the lower trowel 53 except for the back surface.

As shown in FIG. 8, a detector for detecting the compression distance of the spring body 55 of the lower iron 53 due to the pressurization of the upper iron 41 is mounted on a rod 60 protruding from the center of the fixed plate 52 having the above-described structure. the attached coil 58;
The fixing plate 52 is composed of a magnet 62 that is adhesively attached to the center of the lower iron 53 to which the fixing plate 52 is fixed, and a spring body 55 that is interposed between the lower iron 53 of the fixing plate 52. When the lower iron 53 is pressurized by the upper iron 41, the spring body 55 supporting it is compressed, and the magnetic magnet 62 approaches the coil 58 by the compressed distance. Due to the principle of electromagnetic induction, a current flows through the coil 58 by the distance that it approaches, and this is detected.

Next, the operation of the press machine configured as described above and used for adhesion, transfer, etc. of the present invention will be explained.

First, as shown in FIG. 1 and FIGS. 4 to 6, adjust the pressure adjustment knob 42 attached to the right side of the front end of the pressure adjustment mechanism (not shown) that adjusts the pressure, and set the heating temperature and heating time. It is set using the timer section 81 and thermostat 82.

Next, the workpiece Y is placed on the upper surface of the silicone sponge S of the lower iron 53 together with the adhesive material X or the transfer sheet X.

Next, as shown in FIGS. 4 to 6, the pressure lever 4
If you close the movable upper plate 40 by holding the upper trowel opening/closing lever 44 while keeping the upper trowel 3 upright, a switch (not shown) will be activated.
The timer unit 81 is turned on via the .

Next, when the pressure lever 43 is tilted forward, the upper trowel 41 presses the lower trowel 53 with a constant pressure while sandwiching the workpiece Y placed together with the adhesive X or the transfer sheet X. , is heated at a constant temperature set by a thermostat 82, and is bonded or transferred. After a certain period of time, the timer unit 81 activates a buzzer (not shown) to notify the completion of the pressing operation.

As shown in FIGS. 7 and 8, when the lower iron 53 is pressurized by the upper iron 41, the lower iron 53 is supported by the spring body 55, that is, the lower iron 53 is fixed to the back surface thereof via the spring body 55. When the spring body 55 of the lower iron 53 to which the plate 52 is fixed is compressed, the detector detects the compression distance of the compressed spring body 55.

In other words, the magnet 62, which is a magnetic material bonded to the back surface of the lower iron 53, approaches the coil attached to the rod 60 protruding from the center of the fixed plate 52 by the compressed distance, and the magnet 62, which is a magnetic material, 62 and the coil 58 changes. Along with this, the magnetic flux changes, and based on the principle of electromagnetic induction, current flows in a direction that reduces this change in magnetic flux.

Magnet 62 and spring body 55 of coil 58
The detector detects the compression distance of the spring body 55, that is, the distance between the magnet 62, which is a magnetic material, and the coil 58, as a current flow.

The current change due to this pressurizing force is instantly transmitted to the identification mechanism (not shown) provided on the left side of the front end of the pressurizing force adjustment mechanism (not shown), which identifies the current change stepwise. be done.

The signal identified by this mechanism is displayed in stages by an indicator lamp 45 shown in FIG. 1 adjacent to the pressurizing force adjustment mechanism (not shown).

Therefore, the operator can perform press work while constantly checking the pressure applied to the workpiece using the display lamp, and can wear thin items such as T-shirts, judo uniforms, or exercise clothes. Even when pressing work on thick objects, the pressure is never insufficient for thick objects or too high for thin objects, and the pressure is always appropriate. It is capable of applying pressure to the workpiece.

(Effects of the Invention) As described above in detail, in the press machine of the present invention, the pressurizing force applied to the workpiece such as a T-shirt or exercise clothes is applied by tilting the movable upper plate equipped with the upper iron. is regarded as the amount of deflection of the spring body interposed between the fixed plate and the lower iron, and this amount of deflection is calculated as the amount of deflection on the back side of the lower iron with respect to the coil on the fixed plate fixed to the back side of the lower iron via the spring body. Detection is done by detecting current changes as the attached magnetic material approaches and separates. Therefore, according to this press machine, the pressing force applied to the fabric can be directly determined from the compression distance of the spring body, thereby making it possible to always apply an appropriate pressing force.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a press used for adhesion or transfer of the present invention in a pressurized state, FIG. 2 is a perspective view of the press of the present invention with its movable upper plate open, and FIG. The figure is a partially cutaway perspective view of the press machine of the present invention with the movable upper plate open.
Fig. 4 is a side view showing the movable upper plate of the press machine of the present invention in an open state, and Fig. 5 shows a state in which the movable upper plate is closed by rotating the upper trowel opening/closing lever of the press machine of the present invention. A side view, FIG. 6 is a side view showing a state in which the pressure lever is rotated to apply pressure, and FIG. 7 is a side view showing a state in which the lower iron and fixed plate of the press machine of the present invention are not pressurized. Partially enlarged sectional view, No. 8
The figure is a partially enlarged cross-sectional view of the pressurized state shown in FIG. 7, and FIG. 9 is a perspective view of the conventional press machine. Explanation of symbols, 41...Upper trowel, 53...Lower trowel, 5
5... Spring body, 43... Pressure lever, 40... Movable upper plate, 50... Solid lower stand, 58... Coil, 6
2...Magnet.

Claims (1)

[Scope of Claims] 1. A press machine that heats and presses a lower iron while holding a workpiece such as a T-shirt or exercise clothes between them by tilting a movable upper plate equipped with an upper iron, A fixing plate is fixed to the back side of the lower iron via a spring body, and the amount of deflection of this spring body is caused by the approach and separation of the magnetic body attached to the back side of the lower iron and the coil attached on the fixing plate. A press machine characterized by detecting changes in current.