KR20200098984A - Heat-welding device using cylinder - Google Patents

Abstract

The present invention relates to a fusion device using a cylinder, which includes a fusing stroke stopper on upper and lower gripping members facing each other and moving up and down by an operation cylinder, controls an operation stroke of the upper and lower gripping members pressed by the cylinder by providing a melt stroke stopper on a heating member that heats a joined portion of a joining member, thereby preventing excessive heating of a heated portion when heating the joined portion of the joining member, and can prevent excessive pressure from being applied to the joined portion when pressing the joined portions of the joining member to each other.

Description

Heat-welding device using cylinder}

The present invention relates to a thermal bonding apparatus using a cylinder, and more particularly, when bonding a pair of bonding members made of a synthetic resin material, the cylinder is used for heating and pressing operation for bonding, and the stroke of the cylinder is It relates to a thermal welding device using a controllable cylinder.

In general, fusion bonding refers to bonding in a molten state by fusion bonding the base material itself, and it can be distinguished from welding using other materials (e.g. welding rods) in that the base material is melt-bonded without using other materials. have.

In such fusion bonding, ultrasonic vibration, pressure, and time may act as important factors in determining the quality of the fusion bonding state. In this way, bonding two or more different members by applying heat is referred to as a heat fusion device, which is applied in various structures and configurations according to the material and shape of the object and is used in various industrial fields.

A typical thermal fusion device generates heat by using power supplied from the outside, and uses this to fuse and bond different members.

That is, the heat-sealing apparatus can bond the two members by applying heat to the two members (joining members) to be bonded to be melted, and then pressing the molten members in contact with each other.

A process of joining two members (hereinafter referred to as'joining members') to be joined in a conventional thermal welding device by thermal welding is as follows.

First, the bonding member is heated by contacting the upper and lower portions of the heating plate generating heat, respectively. Thereafter, the heating plate is separated from each other by heating the bonding member at the upper and lower portions of the heating plate, and the heating plate is removed by moving the heating plate between the separated and heated bonding members.

Then, the heated joining members are moved in a direction facing each other, the heated and melted portions are brought into contact with each other, and then pressurized to join.

When the heated bonding member is pressed and bonded, if the pressure to press the heated bonding member is increased, the molten portions that are bonded to each other are crushed, resulting in a bonding failure. In addition, when the pressure for pressing the heated bonding member is small, the molten portions do not completely adhere to each other, resulting in a bonding failure that is easily dropped.

In order to solve the above problems of bonding failure, the stroke range of the pressurizing unit is finely set in order to keep the pressurizing force of the pressurizing unit that presses the joining member in consideration of the melting state of the joining part and the joining thickness. You should be able to.

However, in order to finely set the stroke range of the pressurizing unit, an expensive stepping motor capable of controlling the stroke range must be used, and thus, there is a problem in that the cost for the thermal welding device is high.

Korean Patent Publication No. 10-0724589 (registered on May 28, 2007)

Accordingly, the present invention has been devised to solve the above problems, and pressurizes the bonding member with a cylinder, and controls the stroke range of the cylinder to the heating member for heating the bonding member and the gripping member for holding the bonding member. Its purpose is to provide a heat-sealing device that can reduce equipment cost while simplifying the structure of the device by adding a configuration that can be done.

The present invention for achieving the above object is, the upper and lower gripping members respectively gripping two bonding members to be bonded by heating with heat, spaced apart from each other and reciprocating in a direction facing each other, and the upper and lower A pair of operating cylinders each connected to the holding member and reciprocating each of the upper and lower holding members, a pressure supplying part supplying pressure to the pair of operating cylinders, and provided at an end of the operating cylinder and provided at the upper and A pair of pressing members for pressing the bonding members respectively gripped by the lower gripping member, a heating member provided between the upper and lower gripping members to heat the bonding portion of the two bonding members, and the heating member A moving unit for reciprocating movement between the upper and lower gripping members, and upper and lower gripping members provided in the heating member to reciprocate between the upper and lower gripping members move to the heating member so that the bonding portion of the bonding member contacts the heating member A plurality of molten stroke stoppers capable of stopping the movement of the upper and lower gripping members after being formed, and provided on the upper and lower gripping members, and heating the bonding portion of the bonding member, and connecting the upper and lower gripping members to each other. When moving in a facing direction and contacting and joining the joining portions of the joining members respectively gripped by the upper and lower gripping members, the upper and lower gripping members move in a direction facing each other, It can be configured including a fusion stroke stopper.

In addition, the fusion stroke stopper is formed respectively on the lower surface of the upper gripping member and the upper surface of the lower gripping member provided facing each other, the fusion stroke stopper formed on the upper gripping member and the fusion stroke stopper of the lower gripping member May be formed at positions that deviate from each other so as not to be located on the same straight line.

In addition, the height of the melting stroke stopper may be formed smaller than the height of the bonding portion of the bonding member.

In addition, the height of the fusion stroke stopper is formed to be smaller than the height of the fusion stroke stopper, the melting stroke stopper provided on the upper and lower gripping members during the operation for heating the joint portion of the joining member is the heating member It can be configured to prevent contact with.

In addition, the fusion stroke stopper and the fusion stroke stopper are formed to protrude in a direction facing each other, but are not positioned on the same straight line so as not to contact each other, but may be formed at a position that deviates from each other.

In addition, further comprising a pressure control unit capable of adjusting the operating pressure of the operating cylinder for reciprocating the upper and lower gripping members up and down, the distance measuring member disposed from the heating member to the position of the operating cylinder, the A first sensor provided in the distance measuring member, a second sensor receiving a signal from the first sensor, and a pressure control unit receiving a signal from the second sensor to control the operation of the pressure supply unit. have.

In addition, the heating member, the gripping member, the operation cylinder, and configured to accommodate the pressing member in a chamber having a separate space, further comprising a temperature control unit capable of adjusting the temperature in the chamber, wherein the temperature The control unit includes a temperature sensor for measuring a temperature in the chamber, a cold air supply unit for supplying cold air into the chamber, a hot air supply unit for supplying hot air into the chamber, and the cold air supply unit and hot air by receiving a signal from the temperature sensor. It can be configured to include a temperature control unit for controlling the operation of the supply unit.

According to the present invention, by forming a fusion stroke stopper on a pair of gripping members facing each other and a fusion stroke stopper on the heating member, when bonding the pair of gripping members by pressing them in a direction facing each other with a cylinder, the cylinder It is possible to precisely control the bonding thickness of the bonding member that is pressed and bonded by, thereby reducing equipment cost.

1 is a view schematically showing a thermal welding device according to a first embodiment of the present invention.
A perspective view showing an upper gripping member having a fusion stroke stopper formed thereon and a heating member having a melting stroke stopper formed in the thermal fusion device of FIGS. 2A and 1.
FIG. 2B is a perspective view showing a heating member having a melting stroke stopper and a lower gripping member having a fusion stroke stopper in the thermal welding device of FIG. 1.
Figure 3 is a perspective view showing the upper and lower gripping members formed with a melt stroke stopper in the thermal welding device of Figure 1;
4 is a block diagram showing a pressure control unit of the heat fusion device of FIG. 1;
Figure 5 is a block diagram showing a temperature control unit in the thermal welding device of Figure 1;

The terms or words used in the specification and claims are not to be construed as being limited to their usual or dictionary meanings, but'inventors should appropriately define the concept of terms in order to explain their own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle of'can be'.

In addition, the embodiments described in the present specification and the configurations shown in the drawings are merely preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, so that they can be replaced at the time of application It should be understood that there may be various equivalents and variations.

1 is a view schematically showing a heat-sealing apparatus according to a first embodiment of the present invention, and in the heat-sealing apparatus of FIGS. 2A and 1, an upper gripping member having a fusion stroke stopper and a heating member having a melting stroke stopper are shown. It is a perspective view shown. FIG. 2B is a perspective view showing a heating member having a melting stroke stopper and a lower gripping member having a melting stroke stopper in the thermal welding apparatus of FIG. 1. FIG. 3 is a perspective view showing upper and lower gripping members having a melt stroke stopper formed in the thermal fusion device of FIG. 1. FIG. 4 is a block diagram showing a pressure control unit of the heat fusion device of FIG. 1, and FIG. 5 is a block diagram showing a temperature control unit in the heat fusion device of FIG. 1.

1 to 5, the thermal welding device 1 according to an embodiment of the present invention heats a joint portion of two members to be joined (hereinafter referred to as'joining member') with heat and then pressurization. By joining the heated portion, a pair of gripping members 10 and 11, a pair of operating cylinders 20, a pressure supply unit 30, a pair of pressing members 40, and heating It can be configured to include a heating member 50 having a portion, a moving unit 60, a melting stroke stopper 70, and a fusion stroke stopper 80.

First, the bonding member 3 is formed of a plastic material that melts when heated by heat. For example, a hemispherical container in which one side is opened for making a tank (tubular member) is formed into a pair, and the inner You can make a tank with space in it. At the edges of the pair of bonding members 3, a bonding portion 3a that can be butted to each other and fused by heat may be formed to protrude.

A pair of gripping members 10 and 11 may be configured to be disposed to face each other in a spaced apart state. The pair of gripping members 10 and 11 includes an upper gripping member 10 positioned above the heating member 40 and a lower gripping member 11 positioned above the heating member 40.

The upper and lower gripping members 10 and 11 are provided with holes through which the bonding member 3 can be inserted and gripped at the center of each. When the upper and lower gripping members 10 and 11 are held by inserting the bonding member 3 into the hole in the center, the edges of the openings to be bonded by contacting each other in the bonding member 3 can face each other. Can be held in the state. Here, the upper and lower gripping members 10 and 11 may be disposed in a vertical direction while being spaced apart from each other in the vertical direction.

The pair of operating cylinders 20 may have their ends connected to the upper and lower gripping members 10 and 11, respectively, and may be configured to linearly move the upper and lower gripping members 10 and 11. That is, the pair of operating cylinders 20 connects the upper or lower surfaces of the respective gripping members 10 and 11 at the upper and lower sides of the upper and lower gripping members 10 and 11 arranged vertically to be vertical. It can be moved back and forth in any direction. The operating cylinder 20 may be configured to be operated by fluid or air, but in an embodiment of the present invention, it may be configured as an air cylinder operated by an air supply unit such as an air pump or an air compressor.

The heating member 50 may be provided with heating units that generate heat on the upper and lower surfaces, respectively. That is, the heating unit may be embedded in the heating member 50 to generate heat on the upper and lower surfaces of the heating member 50. Here, the heating unit may be formed of a nichrome wire that generates heat by application of electricity, and may be embedded in the heating member 50. The heating member 50 is formed in a shape corresponding to the shape of the bonding portion 3a because the bonding portion 3a must be heated in a state where the bonding portion 3a of the bonding member 3 is completely in close contact with each other. Can be.

A pair of pressing members 40 are provided at the ends of the pair of operating cylinders 20, respectively, to hold the upper and lower gripping members 10 and 11 for gripping the bonding member 3, respectively, as a heating member 50. You can press it to the side. That is, the pressing member 40 may be coupled to the end of the operating cylinder 20 and configured to move in the vertical direction of FIG. 1 when the operating cylinder 20 is operated. The pair of pressing members 40 may be configured to be connected to or separated from the upper and lower gripping members 10 and 11.

The moving unit 60 serves to move the heating member 50 linearly to move it between the upper and lower gripping members 10 and 11 or take it out between the upper and lower gripping members 10 and 11. The moving unit 60 arranges the upper and lower gripping members 10 and 11 to move the heating member 50 in a direction orthogonal to the direction in which the upper and lower gripping members 10 and 11 move. It can be composed of a cylinder disposed in a direction orthogonal to the direction. Here, the moving unit 60 may be composed of a motor that generates power, a pinion gear rotated by the motor, and a rack gear that is gear-coupled to the pinion gear, and the rack gear is provided or coupled to the heating member to provide a heating member. (50) can also be configured to be able to move linearly.

One or more melt stroke stoppers 70 may be provided on the upper and lower surfaces of the heating member 50, respectively. When the upper and lower gripping members 11 and 10 holding the joining member 3 move toward the heating member 50, the melt stroke stopper 70 is formed of the upper and lower gripping members 10 and 11. It serves to stop the movement. In other words, the melting stroke stopper 70 is the upper part to prevent excessive melting of the joint part 3a after the joint part 3a of the joint member 3 is in close contact with the heating member 50 and starts to melt. And the lower gripping members 10 and 11 are prevented from being further pressed toward the heating member 50.

Here, the melt stroke stopper 70 allows the bonding member 3 to be pressed slightly toward the heating member 50 even after the bonding portion 3a of the bonding member 3 comes into contact with the heating member 50. It is preferably formed to have a thickness smaller than the thickness of the bonding portion 3a of the bonding member 3.

The thickness of the melt stroke stopper 70 may be determined in consideration of the state and thickness of the bonding member 3 when the bonding portion 3a of the bonding member 3 is heated and then bonded to each other. The thickness of the melt stroke stopper 70 can be determined by performing a number of bonding operations.

The fusion stroke stopper 80 may be configured in plural on the lower surface of the upper gripping member 10 and the upper surface of the lower gripping member 20 facing each other. The fusion stroke stopper 80 allows the upper and lower gripping members 10 and 11 to contact each other after the bonding parts 3a are in contact with each other in the process of bonding the heated bonding member 3 to the bonding portion 3a. It is to stop the movement of the upper and lower gripping members 10 and 11 so as not to move more than the set distance toward. That is, when the fusion stroke stopper 80 is pressed toward each other after the bonding portions 3a of the heated bonding member 3 are in close contact with each other, the heated bonding portions 3a are excessively pressed, causing bonding failure. To prevent it from becoming.

The fusion stroke stopper 80 is formed in plural and formed on the bottom surface of the upper gripping member 10 and the upper surface of the lower gripping member 11 facing each other, but as shown in FIG. It is preferably formed in. That is, the fusion stroke stopper 80 formed on the bottom surface of the upper gripping member 10 during the bonding process of the bonding portion 3a of the bonding member 3 contacts the upper surface of the lower gripping member 11, and the lower gripping member The fusion stroke stopper 80 formed on the upper surface of (11) is configured to contact the lower surface of the upper gripping member 10.

On the other hand, the melting stroke stopper 70 formed on the upper and lower surfaces of the heating member 50, respectively, when heating the joint portion 3a of the joining member 3 is formed on the lower surfaces of the upper and lower gripping members 10, 11 When contacting each of the upper and lower surfaces, it is preferable to configure such that the fusion stroke stoppers 80 formed on the upper and lower gripping members 10 and 11 do not contact the upper and lower surfaces of the heating member 50, respectively. That is, the height of the fusion stroke stopper 80 is formed smaller than the height of the fusion stroke stopper 70, so that when the fusion stroke stopper 70 comes into contact with the upper and lower gripping members 10, 11, the fusion stroke stopper ( 80) can prevent contact with the upper and lower surfaces of the heating member 50.

As described above, when heating the bonding portion 3a of the bonding member 3, the fusion stroke stopper 80 formed on the bottom and top surfaces of the upper and lower gripping members 10, 11 and the upper surface of the heating member 50 It is preferable that the melt stroke stopper 70 protruding from the bottom surface is formed at a position that deviates from each other so as not to be positioned on the same straight line so as not to contact or catch each other.

On the other hand, the heat fusion device 1 according to the first embodiment of the present invention is a pressure control unit 90 for adjusting the pressure acting by the operating cylinder 20 for pressing the upper and lower gripping members 10, 11 ) May be further included.

The pressure control unit 90 quickly moves the upper and lower gripping members 10 and 11, which are respectively connected to the ends of the pair of operating cylinders 20 and moved to a predetermined distance, and then the upper and lower gripping members ( 10) The upper and lower gripping members 10 and 11 contact the melting stroke stopper 70 after the bonding portion 3a of the bonding member 3 gripped by 11 contacts the heating member 50 It plays a role of gradually moving the upper and lower gripping members 10 and 11 until it is completely stopped.

The pressure control unit 90 includes a distance measuring member 91 disposed from the position of the operating cylinder 20 to the heating member 50 in a state before operation of the operating cylinder 20, and provided in the distance measuring member 91. The first sensor 92, a second sensor 93 provided in the upper gripping member 10 to receive a signal from the first sensor 92, and a pressure supply unit receiving a signal from the second sensor 93 ( It can be configured to include a pressure control unit 94 for controlling the operation of 30).

The distance measuring member 91 is disposed in the direction in which the operating cylinder 20 is operated, that is, in the upward direction in which the upper gripping member 10 reciprocates, and the upper gripping member 10 before the operation cylinder 20 is operated After the operation cylinder 20 is operated at the position, the bonding member 3 may be provided in a vertical direction to the position where the upper gripping member 10 is before contact with the heating member 50. The distance measuring member 91 may be configured as a ruler (yulchuck) so as to measure the moving stroke of the upper gripping member 10 that is moved by the operating cylinder 20 when the operating cylinder 20 is operated.

The first sensor 92 and the second sensor 93 may be configured as a set (set), and may be provided on the distance measuring member 91 and the upper gripping member 10, respectively.

The first sensor 92 is provided on the distance measuring member 91, but may be configured to be located at a position higher than the upper surface of the melt stroke stopper 70. The first sensor 92 may be configured to generate a signal and transmit it to the second sensor 93. That is, the first sensor 92 serves to generate magnetic force or infrared rays.

The second sensor 93 may be provided on the upper gripping member 10 that grips the bonding member 3. The second sensor 93 is configured to receive a signal from the first sensor 92 and transmit it to the pressure control unit 94. The second sensor 93 may be configured as a Hall sensor that detects the magnetic force of the magnet when the first sensor 92 is composed of a magnet generating magnetic force. The second sensor 93 may be configured as a sensor that detects infrared rays when the first sensor 92 generates infrared rays.

The second sensor 93 is provided on the side of the upper gripping member 10, and specifically, it is preferably provided at the lower side of the side of the upper gripping member 10.

The location of the first sensor 92 is when the bonding portion of the bonding member 3 gripped by the upper gripping member 10 is positioned higher than the melting stroke stopper 70, the second sensor 93 is located. It can be configured by setting it to the same height as the location. That is, the position of the first sensor 92 can be arbitrarily set in the process of an operator testing the operation of the operating cylinder 20.

The pressure controller 94 is connected to the second sensor 93 and receives a signal from the second sensor 93 to control the operation of the pressure supply unit 20. The pressure control unit () may be configured to supply high pressure from the pressure supply unit 94 to the operation cylinder 20 when the operation of the operation cylinder 20 starts.

In addition, when the upper gripping member 10 moves, the pressure control unit 94 receives a signal from the first sensor 92 by the second sensor 93 of the upper gripping member 10, and the second sensor 93 When a signal is received from, the pressure supply unit 30 may be controlled to lower the pressure supplied to the operating cylinder 20 to be supplied.

In other words, the pressure control unit 94 controls the pressure supplied from the pressure supply unit 30 to the operating cylinder 20, so that the upper gripping member 10 for gripping the bonding member 3 is moved by the first sensor 92. It moves quickly to the position, and the upper gripping member 10 is moved slowly until the bonding portion of the bonding member 3 from the position of the first sensor 92 is in close contact with the heating member 50 and pressed and melted. I can.

In addition, the heat fusion device according to the first embodiment of the present invention includes a heating member 50, an upper and lower gripping member 10, 11, an operation cylinder 20, a pressing member 40, and a fusion stroke stopper 80. ), a separate chamber capable of accommodating the configurations of the melt stroke stopper 70 may be included, and a temperature control unit 100 capable of adjusting the temperature in the chamber may be further included.

Here, the temperature control unit 100 serves to adjust the temperature in the chamber to maintain a constant temperature without increasing or decreasing the temperature in the chamber.

Here, the temperature control unit 100 includes a temperature sensor 101 that measures the temperature in the chamber, a cold air supply unit 102 that supplies cool air that can lower the temperature in the chamber, and warms up to increase the temperature in the chamber. It may be configured to include a warm air supply unit 103 to supply, and a temperature control unit 104 for controlling the operation of the cold air supply unit 102 and the warm air supply unit 103 by receiving a signal from the temperature sensor 101.

A brief description will be made of the operational relationship of the thermal bonding apparatus according to an embodiment of the present invention as described above.

First, before the operation of the operating cylinder 20, that is, before the upper and lower gripping members 10 and 11 move to the heating member 50, the upper and lower gripping members 10, 11 and the heating member ( 50) maintains a state spaced apart from each other by a certain distance, and the state in which the bonding member 3 is not gripped by the upper and lower gripping members 10 and 11 is referred to as an initial state of the thermal welding device 1. In this initial state, the heating member 50 is positioned between the upper and lower gripping members 10 and 11, and the upper surfaces of the upper gripping member 10 and the heating member 50 face each other, and the lower gripping member 11 ) And the bottom surfaces of the heating member 50 may be in a state in which they face each other.

In this way, the thermal fusion device 1 includes pressure and heating member 50 supplied to the operating cylinder 20 so that the moving speed of the upper and lower gripping members 10 and 11 can be adjusted to the operating cylinder 20. ) To be heated, etc. must be set in advance.

In order to bond a pair of bonding members 3 made of plastic material to each other by using such a heat-sealing device 1, a pair of bonding members 3 are respectively attached to the upper and lower gripping members 10 and 11. Each will be grasped.

Before gripping or gripping the bonding member 3 on the upper and lower gripping members 10 and 11, the heating member 50 may be preheated to a predetermined temperature by operating in advance.

Thereafter, the operation cylinder 20 is operated to move the upper and lower gripping members 10 and 11 toward the upper and lower surfaces of the heating member 50, respectively. At this time, the operating cylinder 20 can be moved at a speed of two steps by the pressure control unit 90. Specifically, the upper and lower gripping members 10 and 11 in the initial position are quickly moved to the position where the first sensor 92 provided in the distance measuring member 91 is provided.

After that, from the first sensor 92 onwards, it moves slowly until the bonding portion 3a of the bonding member 3 gripped by the upper and lower gripping members 10 and 11 is heated.

After the bonding portion 3a of the bonding member 3 gripped by the upper and lower gripping members 10 and 11 moves to the heating member 50 by the operation of the operating cylinder 20 as described above, Heated.

When the joining portion 3a of the joining member 3 is heated in this way, the operating cylinder 20 is operated again to move the upper and lower gripping members 10 and 11 away from the heating member 50. .

Then, the moving unit 60 is operated to move the heating member 50 between the upper and lower gripping members 10 and 11.

Thereafter, the operation cylinder 20 is operated again to move the upper and lower gripping members 10 and 11 in a direction facing each other.

Then, the upper and lower gripping members 10 and 11 move toward each other, and at this time, the heated bonding portions 3a of the bonding member 3 come into contact with each other to start bonding to each other.

Thereafter, the heated bonding portion 3a of the bonding member 3 where bonding is started with each other is further pressed and compressed by the pressing operation of the operating cylinder 20, thereby bonding.

In this way, when fusion is made to the bonding portion 3a of the bonding member 3, the fusion stroke stopper 80 of the upper gripping member 10 contacts the upper surface of the lower gripping member 11, and As the fusion stroke stopper 80 of the member 11 contacts the bottom surface of the upper gripping member 10, the pressurizing operation of the operating cylinder 20 is stopped.

1: heat fusion device
3: bonding member 3a; Junction
10: upper gripping member 11: lower gripping member
20: operating cylinder 30: pressure supply
40: pressing member 50: heating member
60: mobile unit
70: melting stroke stopper 80: melting stroke stopper
90: pressure control unit 91: distance measuring member
92: first sensor 93: second sensor
94: pressure control unit
100: temperature control unit 101: temperature sensor
102: cold air supply unit 103: warm air supply unit
104: temperature control unit

Claims (7)

Upper and lower gripping members respectively gripping the two bonding members to be bonded by heating with heat, and being spaced apart from each other and reciprocating in a direction facing each other;
A pair of operating cylinders connected to the upper and lower gripping members, respectively, for reciprocating the upper and lower gripping members;
A pressure supply unit for supplying pressure to the pair of operating cylinders;
A pair of pressing members provided at an end of the operating cylinder and pressing the bonding members respectively gripped by the upper and lower gripping members;
A heating member provided between the upper and lower gripping members to heat a joint portion of the two joining members;
A moving unit for reciprocating the heating member between the upper and lower gripping members;
The upper and lower gripping members provided in the heating member to reciprocate the upper and lower gripping members move to the heating member to stop the movement of the upper and lower gripping members after the bonding portion of the bonding member comes into contact with the heating member. A plurality of melt stroke stoppers capable of;
It is provided on the upper and lower gripping members, the bonding portion of the bonding member is heated, and the upper and lower gripping members are moved in a direction facing each other to join the bonding members respectively gripped by the upper and lower gripping members. A plurality of fusing stroke stoppers capable of stopping moving in a direction opposite to each other when the upper and lower gripping members are in contact with each other to be joined;
Consisting, including, a thermal welding device using a cylinder. The method of claim 1,
The fusion stroke stopper,
Each formed on a bottom surface of the upper gripping member and an upper surface of the lower gripping member provided facing each other,
The fusion stroke stopper formed on the upper gripping member and the fusion stroke stopper of the lower gripping member are formed at positions that deviate from each other so as not to be located on the same straight line. The method of claim 1,
The height of the melt stroke stopper,
A thermal welding device using a cylinder that is formed smaller than the height of the bonding portion of the bonding member. The method of claim 1,
The height of the fusion stroke stopper is formed smaller than the height of the fusion stroke stopper,
A thermal bonding apparatus using a cylinder configured to prevent contact with the heating member by the melting stroke stoppers provided on the upper and lower gripping members during an operation for heating the bonding portion of the bonding member. The method of claim 1,
The fusion stroke stopper and the fusion stroke stopper are formed to protrude in a direction facing each other, and are not positioned on the same straight line so as not to contact with each other, but are formed at positions that deviate from each other. The method of claim 1,
Further comprising a pressure control unit capable of adjusting the operating pressure of the operating cylinder for reciprocating the upper and lower gripping members up and down,
A distance measuring member disposed from the heating member to the position of the operating cylinder,
A first sensor provided in the distance measuring member,
A second sensor that receives a signal from the first sensor,
A pressure control unit that receives a signal from the second sensor and controls the operation of the pressure supply unit; and a thermal welding device using a cylinder. The method of claim 1,
The heating member, the gripping member, the operating cylinder, and configured to accommodate the pressing member in a chamber having a separate space,
The configuration further comprises a temperature control unit capable of adjusting the temperature in the chamber,
The temperature control unit,
A temperature sensor that measures the temperature in the chamber, and
A cold air supply unit for supplying cold air into the chamber,
A warmth supply unit for supplying warmth into the chamber,
A temperature control unit receiving a signal from the temperature sensor and controlling the operation of the cold air supply unit and the warm air supply unit;
Consisting, including, a thermal welding device using a cylinder.

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