Crimping method and crimping device

Abstract

To provide a control method of a crimping device that appropriately controls the pressing force in response to instability in the output of a drive device, and a crimping device used to carry out the control method.SOLUTION: In a control method of a crimping device, first, a downwardly moving driving force by a drive rod is applied to a load detection unit located above a pressure unit in a crimping module, and the driving force drives a pressurizing mold located below a pressurizing rod of the pressurizing unit via the load detection unit to pressurize a pressurizing object.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention is Method and Regarding the crimping device, in particular The assembly is made up of a die mounted on a substrate and covered with a heat dissipation sheet. Pressure bonding: Pressing and bonding objects together Method and Regarding the crimping device. [Background technology]

[0002] In a typical chip packaging process, a heat dissipation gel is first applied to a substrate, a die is attached to the substrate, another heat dissipation gel is applied on the die, and a heat dissipation sheet covering the die and substrate is then attached to the heat dissipation gel. A method has also been proposed in which a heat dissipation pad with a heat dissipation effect is used instead of the heat dissipation gel used in this method, but when the heat dissipation sheet is attached to the heat dissipation pad, the heat dissipation sheet covering the heat dissipation pad is fixed to the substrate by pressing the heat dissipation sheet onto the heat dissipation pad.

[0003] Conventionally, when such pressure bonding is performed, an upper mold and a lower mold are used to press the heat dissipation sheet against the heat dissipation pad to bond them together. However, the pressure applied during this process is prone to change due to instability in the output of the drive device and is difficult to control, so there is still room for improvement in the pressure bonding process in mass production. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Taiwan Patent No. I638421 Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, the present invention Crimping method that overcomes at least one of the disadvantages of the prior art The purpose is to provide. It is also an object of the present invention to provide a crimping device that overcomes at least one of the disadvantages of the prior art. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention Crimping method teeth, An assembly in which at least one die is placed on a substrate and further covered with a heat dissipation sheet is provided as a pressure target, and an upper mold is provided for pressing the pressure target together with a lower mold located below, the upper mold having a drive module for providing a driving force and a compression module in which the pressure mold is provided, the drive force is used to drive the pressure mold to press the pressure target, and the drive force is measured by a load detection unit. .

[0007] Furthermore, the crimping device of the present invention provides an assembly as a pressure target, which has at least one die placed on a substrate and is further covered with a heat dissipation sheet, and is provided with both a drive module whose driving force is measured by a load detection unit and a pressure unit in which a pressure mold is provided, the upper mold presses the pressure target together with a lower mold located below, a plurality of the pressure units are provided on the mold table of the crimping module, and the driving force drives the pressure mold to apply pressure to the pressure target.

[0008] Further, a further crimping device of the present invention is Above pressure How to wear Used to carry out the law do. Effect of the Invention

[0009] As described above, the present invention In the crimping method and the crimping device, the driving force of the driving module that presses the pressure mold against the pressure target is measured by the load detection unit, so that the driving force can be controlled, thereby improving the quality of the manufacturing process. can. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a perspective view showing a configuration of a portion of the crimping device according to the present invention. [Diagram 2] 1 is a side view showing a configuration of a portion of a crimping device according to the present invention; [Diagram 3] FIG. 2 is a perspective view showing the configuration of one pressurizing unit of the crimping device according to the present invention. [Figure 4] FIG. 2 is a side view showing the configuration of one pressurizing unit of the crimping device according to the present invention. [Diagram 5] FIG. 2 is a cross-sectional view showing the configuration of one pressurizing unit of the crimping device according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The control method for a crimping device of the present invention and the crimping device used to carry out the control method will be described in more detail below with reference to Figs. 1 to 5.

[0012] In this embodiment, a bonding device used in the process of bonding a heat dissipation sheet is used as an example. When implementing the present invention, an upper mold and a lower mold are used to pressurize the object E to be pressed, and the object E to be pressed is an assembly in the semiconductor manufacturing process in which a die is placed on a substrate and a heat dissipation gel is applied, or an assembly in which a heat dissipation pad is bonded and then covered with a heat dissipation sheet.

[0013] As shown in Figures 1 and 2, the crimping device comprises a drive module AB having a fixed base A on which a plurality of drive means B having a drive rod B1 movable up and down are mounted, and a crimping module CD located below the drive module AB and having a rectangular mold base C on which a plurality of pressurizing units D arranged in a matrix form are mounted, each corresponding to each of the drive means located above.

[0014] A plurality of rollers A1 are provided at locations corresponding to the two short sides of the drive module AB, and a plurality of rollers C1 are provided at locations corresponding to the two short sides of the compression module CD, with a space therebetween. The bottom ends of the drive rods B1 of the drive means B of the drive module AB are in a separated state when not driven, maintaining a predetermined distance d from the top ends of the pressurizing units D in the corresponding compression modules CD below. A rectangular mold frame C2 is provided below the mold table C of the compression module CD.

[0015] As shown in Fig. 2, each pressure unit D has a similar structure, so the following will describe in detail the configuration of one pressure unit D. As shown in Fig. 3, the pressure unit D is provided with a pressure rod means D1 and a fixing means D2, and a load detection unit D3 is provided at the top of the upper end of the pressure unit D.

[0016] As shown in Figs. 3 to 5, the pressure rod means D1 is provided with a pressure rod D11, the load detection unit D3 is provided at the top portion of the upper end of the pressure rod D11, and a pressure mold D12 is provided at the lower end.

[0017] The pressure rod D11 has a hollow tubular shape, and a pipe D111 is provided in the center of the tube. The upper end of the pipe D111 is located at the lower end of the load detection unit D3, and an opening D113 communicating with the outside is provided from a pipe wall D112 of the pipe D111. The lower end of the pipe D111 is formed by a fixed base D114 at the lower end of the pressure rod D11 and communicates with a chamber D115 located between the fixed base D114 and the pressure mold D12, and an air hole D116 communicating with the outside is provided on the opposite side of the pipe wall D112 opposite to the opening D113.

[0018] The load detection unit D3 is provided with a cover D31 that covers the top of the pressure rod D11. A pressure touching means D33 is provided at the upper end of a load detector D32 in the cover D31 so as to protrude out of the cover D31, and a bottom pad D34 is provided at the lower end of the load detector D32, which is fitted into the upper end opening of the pipe D111 of the pressure rod D11. The driving rod B1 is driven by a driving force moving downward and first acts on the load detection unit D3 above the pressure unit D in the crimping module CD, and the driving force further indirectly passes through the load detection unit D3 to drive the pressure die D12 below the pressure rod D11 of the pressure unit D in conjunction with the load detection unit D3 to perform pressing against the pressure target E.

[0019] The pressing mold D12 is made of a non-metallic material, such as polyetherimide (PEI), that is resistant to pressure and high temperature, and is provided with a temperature sensor D121. When the pressing mold D12 presses the pressing object E, the temperature sensor D121 detects the temperature of heat transferred from the lower mold F to the pressing mold D12 by the pressing object E. The temperature sensor D121 is linear and extends from the opening D113 to the outside via the pipe D111 of the pressing rod D11. The pressing mold D12 is provided with a plurality of ventilation paths D122 so as to be located around the temperature sensor D121, and one end of each ventilation path D122 is connected to the chamber D115 of the fixing base D114 at the lower end of the pressing rod D11, and the other end is connected to the area below the pressing mold D12. With this configuration, the gas entering from the air vent D116 of the pressurizing rod D11 can reach the chamber D115 via the pipe D111, and can then diffuse from the chamber D115 to each of the air vent paths D122 and be blown against the pressurized object E located below the pressurizing mold D12. This makes it easier to separate the pressurizing mold D12 from the pressurized object E when the pressurizing mold D12 is raised after the compression bonding by the pressurizing mold D12 is completed.

[0020] A first positioning unit D21 is pivotally supported on the fixing means D2 to provide vertical movement of the pressure rod D11 while maintaining the position of the pressure rod D11 in the horizontal radial direction, and a second positioning unit D22 is further provided to maintain the position of the pressure rod D11 in the vertical direction.

[0021] The first positioning unit D21 is provided with a shaft sleeve D211 and a pivot base D212. The shaft sleeve D211 is formed with a shaft hole D213 extending along the Z axis (vertical direction), and the pressure rod D11 inserted into the shaft hole D213 is pivotally supported by the shaft sleeve D211 so as to be movable up and down along the shaft hole D213. The upper end of the shaft sleeve D211 is provided with a circular flange portion D214 whose radial cross-sectional diameter is larger than the outer diameter of the shaft sleeve D211. The pivot base D212 is provided with a pivot hole D215 for pivoting the shaft sleeve D211, and the lower end of the pivot base D212 is provided with a flange base D216 extending radially outward from the pivot base D212. The radial width of the flange base D216 is larger than the radial width of the pivot base D212.

[0022] The second positioning unit D22 is provided with a first positioning table D221 and a second positioning table D222. The first positioning table D221 is located adjacent to the lower side of the load detection unit D3, and a pair of members, a first engaging means D2211 and a second engaging means D2212, are provided so as to sandwich and engage with the pressure rod D11 by being screwed and fixed to each other so as to face each other in the radial direction and move toward each other.

[0023] Here, the first engagement means D2211 is formed with an air guide hole D2213 that corresponds to and communicates with the vent hole D116 in the pressurizing rod D11, and positive pressure gas can be drawn in from the air guide hole D2213 and output to the pipe D111 of the pressurizing rod D11 via the vent hole D116. The second positioning table D222 is located below the first positioning table D221, and a first support frame D2221 and a second support frame D2222, which are a pair of members arranged at a distance from each other, are arranged to face each other outside the position movement section D2223 located outside the outer diameter of the pressurizing rod D11 and surround the pressurizing rod D11 in the radial direction. The upper end of the first support frame D2221 is formed with a curved section D2224 surrounding a part of the outer circumferential diameter of the position moving section D2223, and the lower end of the first support frame D2221 is fixed to the flange base D216 of the pivot base D212 of the first positioning unit D21. The lower end of the second support frame D2222 is fixed to the flange base D216 of the pivot base D212 of the first positioning unit D21, and is provided with an axle pin D2225 that moves up and down and protrudes from the upper end. The bottom of the second engagement means D2212 is fixed to the upper end surface of the axle pin D2225.

[0024] A spring unit D23 formed by a spring is provided between the first positioning unit D21 and the second positioning unit D22. The spring unit D23 is attached to the outside of the pressure rod D11 and disposed in the position moving section D2223 so that the lower end of the spring unit D23 abuts against the upper surface of the flange portion D214 of the shaft sleeve D211 of the first positioning unit D21 and the upper end of the spring unit D23 abuts against the lower edge of the first engaging means D2211 of the second positioning unit D22.

[0025] When the pressure rod D11 moves in conjunction with the up and down movement of the first engagement means D2211 and the pivot pin D2225 of the second positioning unit D22, the pivot pin D2225 prevents the pressure rod D11 from rotating, and when the driving force moving the pressure rod D11 downward is canceled by the restoring force of the compressed spring unit D23, the pressure rod D11 also moves upward in conjunction with the upward movement of the first engagement means D2211 of the second positioning unit D22 and returns to its original fixed position.

[0026] The first positioning unit D21 has flange corresponding sides D217 formed on both sides of the flange portion D214 of the shaft sleeve D211, and has outer diameter corresponding sides D218 formed on both sides of the outer diameter of the pivot base D212. The flange corresponding sides D217 and the outer diameter corresponding sides D218 correspond vertically so that their positions overlap. The first positioning base D221 and the second positioning base D222 of the second positioning unit D22 are attached to both sides of the overlapping portion of the flange corresponding sides D217 and the outer diameter corresponding sides D218, thereby restricting the relative rotation between the shaft sleeve D211 and the pivot base D212.

[0027] The fixing means D2 is fitted into a circular groove-shaped positioning portion C3 recessed in the upper surface of the mold table C at the flange base D216 of the pivot base D212 of the first positioning unit D21, and is attached to the second positioning base D222 of the second positioning unit D22 and the outside of the shaft sleeve D211 of the first positioning unit D21 by a substantially rectangular frame-shaped fixing means D4, and is screwed and fixed to the upper surface of the mold table C. The fixing means D4 is thin plate-shaped and has a central opening sleeve hole D41 whose inner diameter is smaller than the outer diameter of the flange base D216 of the pivot base D212, so that the fixing means D4 simultaneously presses the inner peripheral portion of the sleeve hole D41 against the upper surface of the flange base D216 to restrict the pivot base D212 within the positioning portion C3 of the mold table C.

[0028] A circular hollow through hole C32 is provided in the bottom part C31 of the positioning part C3, and an annular support pad D5 is provided to support the bottom part C31. A hollow hole D51 having approximately the same size as the through hole C32 of the bottom part C31 of the positioning part C3 is provided in the center of the support pad D5, and the through hole C32 and the hollow hole D51 are formed larger than the outer diameter of the shaft sleeve D211 of the first positioning unit D21 so that the shaft sleeve D211 can be inserted therein. The fixing table D114 at the lower end of the pressure rod D11 and the pressure mold D12 fixed thereto are accommodated in a mold chamber C21 partitioned by a mold frame C2 below the mold table C. A rectangular opening C22 is formed in the lower part of the mold chamber C21, and the upper part communicates with the through hole C32. The pressure mold D12 can move up and down in the mold chamber C21 in conjunction with the pressure rod D11.

[0029] The diameter of the sleeve hole D41 of the fixing means D4 is wider than the outer diameter of the shaft sleeve D211, and four fine adjustment sections D42 are recessed at the four corners of the inner periphery of the fixing means D4. Each fine adjustment section D42 is provided with a fine adjustment means D6 formed on a rod screw. The fine-adjustment means D6 is arranged to screw into the upper surface of the flange base D216 of the pivot base D212 of the first positioning unit D21, and its downward extending tip abuts the upper surface of the support pad D5. The two fine-adjustment means D6 are arranged on opposite sides of the shaft sleeve D211 and screwed into the pivot base D212, with their tips abutting the support pad D5. By adjusting the degree of screwing of the two fine-adjustment means D6 into the pivot base D212, the first positioning unit D21 can link the second positioning unit D22 and the pressure mold D12 at the lower end of the pressure rod D11 to tilt to one side, thereby adjusting the angle of the bottom of the pressure mold D12. In addition, since the mold table C is made of aluminum material, by disposing a support pad D5 made of iron, it is possible to avoid a situation in which the bottom of the positioning portion C3 is worn down and broken due to contact with the fine adjustment means D6, but the support pad D5 can be omitted in the present invention.

[0030] The crimping described in this embodiment In the method and the crimping device, the driving force of the driving module AB that presses the pressure target E of the pressure die D12 is measured by the load detection unit D3. The driving force can be controlled, thereby improving the quality of the manufacturing process.

[0031] Although the embodiments of the present invention have been described above, the present invention is not limited thereto, and encompasses all modifications and equivalent configurations as various configurations falling within the spirit and scope of the broadest interpretation. The present disclosure also includes the following inventions. The first aspect is A step of preparing a drive module having a fixed base on which a plurality of drive means having a drive rod that can be driven up and down are provided, and a crimping module having a mold table located below the drive module and provided with a plurality of pressure units each of which corresponds to each of the drive means above and has a pressure rod means having a load detection unit at the top portion at the upper end and a pressure mold at the lower end; This is a control method for a crimping device, characterized by carrying out the steps of: moving the drive rod downward by a drive force, first applying a drive force to the load detection unit in the pressurizing unit in the crimping module, and then using the drive force to drive a pressurizing die below the pressurizing rod of the pressurizing unit via the load detection unit, thereby pressurizing an object to be pressed. The second aspect is The method for controlling a crimping device according to the first aspect, further comprising detecting the temperature of the pressure mold using a temperature sensor. The third aspect is This is a control method for a crimping device in a first aspect, characterized in that when crimping by the pressure die is completed and the pressure die is raised, gas is blown onto the object to be pressurized below the pressure die to make it easier to separate the pressure die from the object to be pressurized. The fourth aspect is The method for controlling a crimping device according to the first aspect is characterized in that the pressure rod is held horizontally by a first position determination unit of a fixing means and is pivotally supported so as to be vertically movable. The fifth aspect is The method for controlling a crimping apparatus according to the first aspect is characterized in that the pressure rod is held vertically by a second positioning unit of a fixing means. The sixth aspect is The method for controlling a crimping device in a first aspect is characterized in that the pressure rod does not rotate when it moves up and down, and moves the pressure rod upward and returns it to its original position by providing a return force that cancels out the driving force that moves the pressure rod downward. The seventh aspect is A method for controlling a crimping device in the fourth or fifth aspect, characterized in that the attitude of the pressure die below the pressure rod is adjusted by adjusting the degree of screwing of a fine adjustment means that screws into and passes through the first positioning unit that holds the pressure rod, into the first positioning unit. The eighth aspect is a drive module having a fixed base on which a plurality of drive means having vertically movable drive rods are provided; a compression module located below the drive module and having a mold table on which a plurality of pressure units corresponding to the drive means above are provided, The pressure applying unit is provided with a pressure applying rod means having a pressure applying rod with a load detection unit at its top end and a pressure applying die at its bottom end, and the downward driving force of the driving rod is applied to the load detection unit, and the driving force drives the pressure applying die located below the pressure applying rod of the pressure applying unit via the load detection unit, thereby applying pressure to the pressure applying object. This is a crimping device characterized in that the pressure applying unit is provided with a pressure applying rod means having a load detection unit at its top end and a pressure applying die at its bottom end. The ninth aspect is The eighth aspect of the crimping device is characterized in that the pressure rod is provided with a pipe having an opening communicating with the outside, and a linearly formed temperature sensor is arranged to extend from the opening to the outside via the pipe of the pressure rod. A tenth aspect is The eighth aspect of the crimping device is characterized in that a pipe is provided on the pressure rod, a vent hole communicating with the outside is provided in the tube wall of the pipe, the lower end of the pipe communicates with a chamber formed on a fixed base at the lower end of the pressure rod and located between the pressure mold and the fixed base, and the pressure mold is provided with at least one air passage having one end communicating with the chamber and the other end communicating with an area below the pressure mold. An eleventh aspect is The pressure rod is provided with a pipe, The load detection unit is provided with a cover covering the top portion of the upper end of the pressure rod, a pressure touching means is provided at the upper end of the load detector within the cover so as to protrude outside the cover, and a bottom pad is provided at the lower end of the load detector which is fitted into the upper end opening of the pipe of the pressure rod. This is a crimping device of the eighth aspect, characterized in that A twelfth aspect is The pressurizing unit is provided with a fixing means having a first positioning unit having a shaft sleeve and a pivot base; The crimping device of the eighth aspect is characterized in that the axial sleeve has an axial hole in which the pressure rod can be pivoted and moved up and down, the pivot base has a pivot hole in which the axial sleeve is pivoted, and a flange base is provided below the pivot base. A thirteenth aspect is 1 is a crimping device used in carrying out a method for controlling a crimping device according to any one of the first to seventh aspects. [Explanation of symbols]

[0032] A Fixed stand A1 Roller AB Drive Module B. Driving means B1 Drive rod C Mold stand C1 Roller C2 Mold Frame C3 Positioning section C31 Bottom part C32 Hollow passage hole CD Crimping Module D Pressurizing unit D1 Pressure rod means D111 Pipe D112 Pipe wall D113 Aperture D114 Fixed base D115 Chamber D116 Ventilation hole D11 Pressure rod D12 Pressure mold D121 Temperature Sensor D122 Ventilation passage D2 Fixing means D21 First positioning unit D211 Shaft sleeve D212 Pivot base D213 Shaft hole D214 Flange part D215 Pivot hole D216 Flange base D217 Flange compatible side D218 Outer diameter corresponding side D22 Second positioning unit D221 First Positioning Table D2211 First engagement means D2211 First engagement means D2212 Second engagement means D2213 Air guide hole D222 Second Positioning Table D2221 1st support frame D2222 Secondary Support Frame D2223 Position change section D2224 Curved section D2225 Axle pin D23 Spring unit D3 Load Sensing Unit D31 Cover D32 Load Detector D333 Pressurized touching means D34 Bottom Pad D5 Support Pad D51 Hollow hole E Object to be pressurized F Lower mold d Distance

Claims

1. Providing an assembly having at least one die mounted on a substrate and covered with a heat dissipation sheet as a pressure target; providing an upper die for pressing the object together with a lower die disposed therebelow; The upper mold includes a drive module for providing a driving force and a compression module in which a pressure mold is provided, The drive module has a fixed base on which a plurality of drive means are provided, each of which is provided with a drive rod that can be driven up and down and is arranged in a matrix. The crimping module is located below the drive module and has a mold table on which a plurality of pressurizing units corresponding to each of the drive means above are arranged in a matrix. The plurality of pressurizing units are provided with pressurizing rod means having a pressurizing rod with a load detection unit at its top end and a pressurizing mold at its lower end. A mold frame is disposed below the mold table. The pressurizing unit is provided with a fixing means, and the fixing means is provided with an axial hole extending vertically. The pressurizing rod can be moved up and down by being inserted into the axial hole. The pressurizing mold at the lower end of the pressurizing rod is accommodated in a mold chamber partitioned by the mold frame below the mold table. An opening is formed at the lower part of the mold chamber. The pressurizing mold can be moved up and down in the mold chamber in conjunction with the pressurizing rod. The pressing mold is driven by the driving force to press the pressing target, A crimping method comprising the steps of: measuring the driving force with the load detection unit;

2. 2. The method according to claim 1, further comprising the step of detecting a temperature transmitted to the pressurizing die via the object to be pressed due to heat from the lower die of the pressurizing die using a temperature sensor.

3. The crimping method according to claim 1, characterized in that, when crimping by the pressure die is completed, gas is blown onto the object to be pressurized below the pressure die, thereby making it easier to separate the pressure die from the object to be pressurized.

4. 2. The crimping method according to claim 1, wherein the crimping module is held horizontally by a first positioning unit and vertically by a second positioning unit.

5. The crimping method described in claim 1, characterized in that the upper die provides a restoring force when the driving force moving the pressure rod downward disappears.

6. 2. The method according to claim 1, further comprising adjusting the degree of screw engagement of two mutually opposing fine adjustment means to adjust the attitude of the pressure die.

7. providing an assembly in which at least one die is placed on a substrate and further covered with a heat dissipation sheet as a pressure target; providing an upper mold provided with both a drive module whose drive force is measured by a load detection unit and a pressure unit in which a pressure mold is provided; The drive module has a fixed base on which a plurality of drive means are arranged in a matrix, the drive means including a drive rod that can be driven up and down, The upper die presses a pressure target together with a lower die below, and the pressure units are arranged in a matrix on a die table of a crimping module. A mold frame is disposed below the mold table of the crimping module, and the pressurizing unit is provided with a pressurizing rod means and a fixing means, The pressure rod means includes a pressure rod having a pressure die at its lower end, The fixing means is provided with an axial hole along a vertical direction, the pressure rod can be moved up and down by being inserted into the axial hole, the pressure die at the lower end of the pressure rod is accommodated in a die chamber partitioned by the die frame below the die table, an opening is formed at the bottom of the die chamber, and the pressure die can be moved up and down in the die chamber in conjunction with the pressure rod, The crimping device is characterized in that the driving force drives the pressure die to pressurize an object to be pressed.

8. The crimping device according to claim 7, wherein the pressure die has a temperature sensor formed in a linear shape, and the temperature sensor is arranged to extend from an opening to the outside via a pipe formed in the pressure rod.

9. The crimping apparatus as described in Claim 7, characterized in that the load detection unit is arranged above the pressure rod.

10. 10. The crimping device according to claim 9, wherein the pressure rod is provided with a pipe, the pipe having an opening communicating with the outside.

11. the pressure rod has a pipe, a vent hole communicating with the outside is provided in a tube wall of the pipe, a lower end of the pipe is formed on a fixing base at the lower end of the pressure rod and communicates with a chamber between the fixing base and the pressure mold, and the pressure mold has an air passage; 10. The crimping apparatus according to claim 9, wherein one end of the air passage communicates with the chamber, and the other end communicates with an area below the pressure die.

12. The crimping device according to claim 9, characterized in that the load detection unit is provided with a cover that covers the upper end top portion of the pressure rod, a pressure touching means is provided at the upper end of the load detector inside the cover so as to protrude outside the cover, and a bottom pad is provided at the lower end of the load detector that is fitted into the upper end opening of the pipe of the pressure rod.

13. The crimping apparatus according to claim 9, wherein the upper die is provided with a spring unit that provides a restoring force when the driving force that moves the pressure rod downward disappears.

14. 8. The crimping device according to claim 7, characterized in that a plurality of rollers arranged at intervals on two sides of the drive module or the crimping module are provided.

15. A crimping device used to perform the crimping method according to any one of claims 1 to 6, A crimping device comprising an upper die which pressurizes the object to be pressed in conjunction with the lower die located below, the upper die comprising a drive module whose drive force is measured by the load detection unit, and the crimping module in which the pressure die is provided.

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