Crimping device

Abstract

To provide a crimping device capable of preventing bending of a shaft when the shaft is used with a pipe around which a sheet having a width narrower than a shaft width is wound.SOLUTION: A crimping device 40 according to an embodiment includes a sheet B wound around a pipe 62, the sheet B being provided between a crimping part 50 and a second workpiece 2, and is a crimping device 40 that crimps the second workpiece 2 to a first workpiece 1 via the sheet B by the crimping part 50. The crimping device 40 comprises a flange 64 fixed to both ends of the pipe 62, a shaft 65 to which the pipe 62 and the flange 64 are fixed and which rotates the sheet B, a receiver that is a rotatable support member supporting the shaft 65, and a roller portion 68 that rotatably supports one of the sheet B, the flange 64, or the shaft 65, and suppresses bending of the shaft 65.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a crimping device. [Background technology]

[0002] Display devices such as liquid crystal displays and organic EL displays have a panel-shaped substrate formed by bonding a pair of glass plates together, and are manufactured by attaching driver ICs and the like to circuits and signal lines (hereinafter referred to as lead wires or leads) formed outside the display area of ​​this substrate.

[0003] Conventionally, a flexible film-like electronic component (COF: Chip On Film) equipped with a driver IC has been used as a method for mounting a driver IC on a substrate. To connect this COF to a substrate, a method is known in which the lead wires of the COF are crimped to the lead wires exposed around the display area of ​​the substrate (see Patent Document 1).

[0004] Such connections by crimping between a substrate and electronic components are widely known not only in display devices but also in various electronic devices, and hereinafter, the objects to be crimped between such substrates and electronic components are referred to as the workpiece. Also, conductive parts of the workpiece, such as electrodes and terminals, that should be electrically connected to each other are referred to as leads.

[0005] Anisotropic conductive film (ACF) is used to connect the workpieces together, and ensures electrical conductivity between the leads of each workpiece through heat and pressure bonding. Anisotropic conductive film is a sheet-like material that contains many small conductive particles in a resin base material. Thermosetting resin is used as the resin base material.

[0006] When ACF is sandwiched between the leads of a pair of workpieces and pressure is applied while heating, the leads protrude from the surface of the workpieces, so the conductive particles in those parts are crushed and the leads become electrically connected. The conductive particles in other parts are not crushed and maintain their thickness, so no conductivity occurs and insulation is ensured. The thermosetting resin base hardens when heated, so the workpieces are mechanically connected to each other.

[0007] When bonding a workpiece, the bonding head is heated to a high temperature in order to heat the ACF to melt and harden it. Therefore, when the workpiece is pressurized and heated by the bonding head, the ACF melts, and some of it may protrude from the workpiece and adhere to the bonding head.

[0008] If ACF adheres to the crimping head, it can lead to poor pressurization, where the crimping head is unable to apply uniform pressure to the workpiece, or the ACF adhering to the crimping head can transfer to the workpiece and cause contamination, which is undesirable.

[0009] Therefore, when the workpiece is bonded, a heat-resistant sheet B made of silicone resin or fluororesin is placed between the workpiece and the bonding head, which prevents the molten ACF from adhering to the bonding head when the workpiece is pressurized and heated.

[0010] Such a sheet B is mounted in a cassette 61 having two shafts 65 on each of the supply side Su and the winding side Wi as shown in FIG. 21. Here, the cassette 61 is described as having two shafts 65 on each of the supply side Su and the winding side Wi, but the same applies to the case where the cassette 61 has one shaft 65 on the supply side Su and one shaft 65 on the winding side Wi. The sheet B is wound around each of the shafts 65 on the supply side Su. The sheet B wound around the two shafts 65 on the supply side Su is wound around each of the two shafts 65 on the winding side Wi. Each sheet B is arranged in an overlapping state between the work and the crimping head. That is, the supply side Su and the winding side Wi of the sheet B are mounted on the shafts 65 on the supply side Su and the winding side Wi in the cassette 61, respectively, and the developed portion between the shaft 65 on the supply side Su and the shaft 65 on the winding side Wi is arranged between the work and the crimping head. Each time the crimping head performs a crimping operation on the workpiece, the sheet B is fed from the shaft 65 on the supply side Su at a predetermined interval, and after the workpiece is crimped, it is taken up on the shaft 65 on the winding side Wi.

[0011] 22, the sheet B is wound around a pipe 62 provided on a shaft 65 on the supply side Su and the winding side Wi. In the shaft 65 on the supply side Su and the winding side Wi, flanges 64 are attached to both ends of the pipe 62, thereby fixing the pipe 62 to the shaft 65. When the shaft 65 is driven to rotate, the sheet B rotates via the flanges 64, and the sheet B is unwound on the supply side Su and wound around the pipe 62 on the winding side Wi. [Prior art documents] [Patent documents]

[0012] [Patent Document 1] JP 2007-73897 A Summary of the Invention [Problem to be solved by the invention]

[0013] In recent years, the width between the lead wires has become narrower due to the high precision of the workpiece, and the width of the COF has also become narrower. Accordingly, the width of the sheet B has also become narrower, and the width of the pipe 62 around which the sheet B is wound has also become narrower. However, there is still a demand for bonding a wide conventional COF to a substrate. Therefore, it has been proposed to use a cassette for a wide conventional COF as it is, without changing the width of the bonding device or the sheet supply device associated therewith, to wind the narrow sheet B around the narrow pipe 62 and fit it into the wide shaft 65. However, although such a configuration has the advantage of commonality of the cassette, in reality, there are the following problems. That is, as shown in FIG. 23(A), conventionally, the length of the pipe 62 and the length of the shaft 65 were almost the same, and the pipe 62 had the effect of suppressing the bending of the shaft 65. However, as the pipe 62 became shorter, the proportion of the exposed portion of the shaft 65 increased, as shown in FIG. 23(B). In the exposed portion of the shaft 65, the bending suppression effect of the pipe 62 is reduced, and the shaft 65 becomes more prone to bending.

[0014] Also, the length of the shaft 65 remains long to accommodate the wide conventional COF. Therefore, if the bending suppression effect of the pipe 62 is not obtained, the shaft 65 will bend under its own weight. Furthermore, the weight of the pipe 62 and the sheet B is added to the center of the shaft 65, so the shaft 65 will bend even more. When the shaft 65 bends in this way, it rotates in an elliptical orbit.

[0015] Here, a method for calculating the length of the sheet B to be fed at a predetermined interval will be described. The length of the sheet B to be fed at a predetermined interval is calculated by first assuming that the sheet B is circular, and calculating the circumferential length of the sheet B from the diameter (sheet diameter) of the sheet B. Then, the length of the circumference is calculated to determine how much the sheet B needs to be rotated to reach the predetermined interval. Therefore, as described above, if the shaft 65 rotates in an elliptical orbit, the sheet B also rotates in an elliptical orbit, and the rotation of the sheet B becomes unstable. Therefore, when the sheet B is supplied and wound up, a discrepancy occurs between the actual sheet diameter and the calculated sheet diameter. In addition, similar to the sheet B on the supply side Su, the length of the sheet B to be wound on the shaft 65 on the winding side Wi is also calculated from the diameter of the sheet B. At the beginning of the operation of the pressing device, almost no sheet B is wound on the shaft 65 on the winding side Wi. Therefore, the deflection is smaller than that of the shaft 65 on the supply side Su. In other words, the deflection amount is different between the shaft 65 on the supply side Su and the shaft 65 on the winding side Wi. Therefore, the length of the sheet B on the supply side Su that is unwound and the length of the sheet B on the winding side Wi that is wound up differ, and it becomes difficult to stably supply the sheet B from the shaft 65 on the supply side Su to the shaft 65 on the winding side Wi. The developed portion of the sheet B between the shaft 65 on the supply side Su and the shaft 65 on the winding side Wi needs to have an appropriate amount of slack. However, if the sheet B is not stably supplied, the length of the sheet B on the supply side Su that is unwound may be smaller than the length of the sheet B on the winding side Wi that is wound up. In this case, there is no slack in the developed portion of the sheet B, and when the workpiece is crimped by the crimping head, an excessive load is applied to the sheet B. Alternatively, the length of the sheet B on the supply side Su that is unwound may be larger than the length of the sheet B on the winding side Wi that is wound up. In this case, the slack in the developed portion of the sheet B becomes large, which may hinder the movement of the workpiece.

[0016] In order to solve the above problems, the present invention aims to provide a crimping device that can prevent bending of a shaft when a shaft is used that is fitted with a pipe wrapped with a sheet that is narrower than the shaft width. [Means for solving the problem]

[0017] The crimping device of the present invention is an electronic component crimping device in which a sheet wrapped around a pipe is provided between a crimping section and an electronic component, and the electronic component is crimped to a substrate via the sheet by a crimping head, and is characterized in that it comprises flanges fixed to both ends of the pipe, a shaft to which the pipe and flanges are fixed and which rotates the sheet, a receiving device which is a rotatable support member that supports the shaft, and a support section that rotatably supports any of the sheet, the flange, or the shaft and suppresses deflection of the shaft. Effect of the Invention

[0018] The crimping device of the present invention makes it possible to prevent bending of a shaft when a shaft is used that is fitted with a pipe wrapped with a sheet having a width narrower than the shaft width. [Brief description of the drawings]

[0019] [Figure 1] 1A and 1B are perspective views showing a workpiece to be crimped according to an embodiment. [Diagram 2] FIG. 4 is a plan view showing the leads of a workpiece to be crimped according to the embodiment. [Diagram 3] 4A and 4B are cross-sectional views showing the crimped portion of a work and an ACF to be crimped according to an embodiment. [Figure 4] 1 is a partially sectional side view showing a basic configuration of a crimping device according to an embodiment. [Diagram 5] 3A is a cross-sectional side view and FIG. 3B is a plan view of a sheet supply unit in the embodiment. [Figure 6] 3A and 3B are schematic side views showing a thermocompression bonded portion in an embodiment. [Figure 7] FIG. 2 is a perspective view showing a cassette in the embodiment. [Figure 8] FIG. 4 is a schematic diagram showing a connection between a gear and a shaft in the embodiment. [Figure 9]1A to 1C are schematic diagrams showing a shaft in an embodiment. [Figure 10] 1A is a perspective view showing a pipe in an embodiment, and FIG. 1B is a schematic diagram showing a pipe and a flange. [Figure 11] 1A is a schematic diagram showing a pipe and a flange in an embodiment, FIG. 1B is a perspective view showing a spacer, and FIG. 1C is a schematic diagram showing contact between the spacer and a notch of a shaft. [Figure 12] 2A is a perspective view showing a roller unit in an embodiment, FIG. 2B is a schematic diagram, and FIG. 2C is a cross-sectional view taken along the line XX in FIG. [Figure 13] 5 is a flowchart showing a procedure for attaching a sheet B of the present embodiment to a pressure bonding device. [Figure 14] 5A, 5B, and 5C are schematic diagrams showing a procedure for attaching the sheet B of this embodiment to a shaft. [Figure 15] FIG. 4 is a cross-sectional view showing a state in which a flange is attached to a shaft. [Figure 16] 1 is a schematic diagram showing a cassette equipped with a shaft according to the present embodiment. FIG. [Figure 17] 5A to 5C are schematic diagrams showing a method of mounting the cassette of the present embodiment to a crimping device. [Figure 18] 1A and 1B are schematic cross-sectional views showing how a load from a shaft in this embodiment is distributed. [Figure 19] FIG. 11 is a schematic view showing a roller portion according to another embodiment. [Figure 20] 13A and 13B are diagrams illustrating a configuration of a roller unit that allows two types of sheets to be set in a cassette. [Figure 21] FIG. 1 is a perspective view showing a cassette having a conventional shaft attached thereto. [Figure 22] FIG. 1 is a cross-sectional view showing a shaft wrapped with a conventional sheet. [Diagram 23] 1A is a cross-sectional view showing a shaft wound with a sheet of a conventional width, and (B) is a cross-sectional view showing a shaft wound with a sheet of a narrow width. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] An embodiment of the present invention (hereinafter, referred to as the present embodiment) will be specifically described with reference to the drawings. Note that the drawings are schematic diagrams, and the sizes, ratios, and the like of each part include exaggerated parts for ease of understanding.

[0021] [1-1. Crimping target] A first work 1 and a second work 2 to be bonded in this embodiment, and an ACF 3 will be described with reference to Figs. 1 and 2. The first work 1 corresponds to a substrate. The first work 1 is, for example, a display panel having a display area such as a liquid crystal display or an organic EL display. Depending on the size of such a display panel, multiple second workpieces 2 may be bonded to the display panel as shown in Fig. 1(A) or a single second workpiece 2 may be bonded to the display panel as shown in Fig. 1(B). In this embodiment, an example in which multiple second workpieces 2 are bonded to the first workpiece 1 will be described.

[0022] As shown in Fig. 2, a plurality of conductive leads 11 are provided on one side of the first work 1 at right angles to the side of the first work 1. Each lead 11 is connected to a circuit in the display area via a signal line. The leads 11 are arranged side by side at a predetermined interval (pitch p). The plurality of leads 11 have a maximum pitch p (distance between center lines) of, for example, 40 µm or less.

[0023] As shown in Fig. 1(A), the second work 2 is an electronic component that is joined to the first work 1 via ACF 3. A COF is used as the electronic component. A COF is, for example, a member in which a driver IC is mounted on a flexible sheet made of a flexible resin and printed wiring is formed.

[0024] As shown in FIG. 2, a conductive lead 21 is provided on one side of the second work 2. The lead 21 is for electrically connecting to the lead 11 of the first work 1. Each lead 21 is connected to a driver IC via a signal line. A plurality of leads 21 are arranged side by side at a predetermined interval. The leads 11 of the first work 1 and the leads 21 of the second work 2 have a predetermined correspondence relationship to be connected to each other, and need to be crimped so that the positions of the corresponding leads 11 and 21 match. For this reason, the intervals between the leads 11 and 21 are also the same. This matching may be sufficient to ensure the conductivity between the corresponding leads 11 and 21 and to ensure insulation between the other adjacent leads 11 and 21.

[0025] The ACF 3 is an anisotropic conductive member, and is a film in which conductive particles 32 are dispersed in a base material 31 (see FIG. 3(A)). The base material 31 is made of a thermosetting resin that is hardened by heating.

[0026] When ACF 3 is sandwiched between second work 2 and first work 1 and pressurized while being heated, conductive particles 32 located between leads 21 and 11 are crushed by being sandwiched between leads 11, 21, thereby realizing conductivity in the thickness direction between leads 21 and 11 and insulation in the surface direction (see FIG. 3(B)). In addition, the thermosetting resin of base material 31 is hardened by heating, and second work 2 is bonded to first work 1. In other words, electrical connection between leads 11 and 21 and mechanical connection between first work 1 and second work 2 can be realized by thermocompression bonding.

[0027] [1-2. Outline configuration] The configuration of the pressure bonding device 40 of this embodiment will be described with reference to FIG. 4 and FIG. 5(A) and (B). In FIG. 4, the pressure bonding direction by the pressure bonding device 40 is the Z direction, and the directions perpendicular to each other in a plane perpendicular to the Z direction are the X direction and the Y direction. The Y direction is the direction between the front and the back in the figure. When the pressure bonding device 40 is installed so that the Z direction is the vertical direction, the XY plane becomes a horizontal plane. In this case, the Z direction is the height direction, and the installation surface side is called the bottom and the opposite side is called the top. The rotation direction parallel to the XY plane is called the θ direction. The pressure bonding device 40 has a pressure bonding unit 50, a sheet supply unit 60, a pressure receiving unit 80, a support unit 90, and a control unit 100.

[0028] The crimping unit 50 corresponds to a crimping head. The crimping unit 50 is a component that heats and crimps the leads 11 of the first work 1 and the leads 21 of the second work 2 via the ACF 3. The crimping unit 50 has a pressure member 51, a heating unit 52, a pressure source 53, and a driving mechanism 54. Note that the second work 2 will be described as being supplied to the crimping device 40 in a state in which it has been provisionally crimped to the first work 1 via the ACF 3 by a provisional crimping device arranged in a process preceding the crimping device 40.

[0029] The pressure member 51 is a member that presses the second work 2. The pressure member 51 is a substantially rectangular parallelepiped shape that is elongated in the Y direction, and has a pressure surface with a length corresponding to the second work 2. Although the pressure members 51 are overlapped and hidden in FIG. 4, a plurality of pressure members 51 are arranged in the Y direction corresponding to each of the second work 2. As will be described later, a configuration for applying pressure to the pressure members 51, such as a pressure source 53, is also provided individually for each of the plurality of pressure members 51. The surface of the pressure member 51 facing the second work 2 has a pressure portion 51a that protrudes in a strip shape. This pressure portion 51a has a flat pressure surface that faces the second work 2 in parallel. The pressure portion 51a may have a pressure surface with a length corresponding to a wide conventional COF.

[0030] The heating unit 52 is a member that heats the pressure applying member 51. The heating unit 52 is built into the pressure applying member 51. The heating unit 52 uses, for example, a heater that generates heat when a voltage is applied. A plurality of heaters are embedded at equal intervals in the pressure applying member 51 behind the pressure applying unit 51a.

[0031] The pressure source 53 is a device that applies pressure to the pressure member 51. The pressure set in the pressure source 53 causes the pressure member 51 to pressurize the second workpiece 2. The pressure source 53 is a fluid pressure cylinder that applies a pressure force to the pressure member 51 by applying fluid pressure to a piston that is slidably provided inside the cylinder. For example, an air cylinder is used in which the piston slides inside due to the pressure of compressed air. The pressure source 53 has an operating rod connected to the piston. The operating rod is urged downward in the Z direction by the pressure source 53, and applies a pressure force to the pressure member 51. The pressure source 53 is also provided with a load sensor such as a load cell that detects the load applied to the second workpiece 2.

[0032] The driving mechanism 54 is a mechanism that drives the pressure member 51 in a direction to approach or move away from the second workpiece 2 together with the pressure source 53 .

[0033] A sheet supplying unit 60, which will be described later, is disposed between the pressure member 51 and the second work 2. The sheet supplying unit 60 is detachable from the pressure bonding device 40, and is an assembly that supplies the sheet B between the pressure member 51 and the second work 2. Details of the sheet supplying unit 60 will be described later.

[0034] As shown in Figs. 6(A) and (B), a sheet B is interposed between the pressure member 51 and the second work 2. Fig. 6(A) shows the state before pressure is applied, and Fig. 6(B) shows the state during pressure application. Figs. 6(A) and (B) are enlarged views of the pressure member 51 and the pressure receiving portion 80 shown in Fig. 4. Therefore, the X, Y, and Z directions in Figs. 6(A) and (B) are the same as those in Fig. 4. As shown in Figs. 4 and 6(A) and (B), the pressure receiving portion 80 is a member that holds the second work 2 and the first work 1 between the pressure receiving portion 80 and the pressure portion 51a of the pressure member 51. The pressure receiving portion 80 is a member of a substantially rectangular parallelepiped shape that can be raised and lowered by a lifting mechanism (not shown), and has a length equal to that of the pressure member 51 in the X and Y directions. The pressure receiving portion 80 has a backup portion 81 and a heating portion 82. The backup portion 81 is provided on a surface facing the pressure member 51a, and protrudes in a strip shape extending in the Y direction. In this manner, the backup portion 81 is a member that is elongated in the Y direction.

[0035] The support unit 90 is a device that supports the first workpiece 1 (see FIG. 4). The support unit 90 has a stage 91 and a moving device 92. The stage 91 is a flat platform that supports the first workpiece 1 in the horizontal direction. Although not shown, the stage 91 has a number of holes that are connected to a vacuum source. This allows the stage 91 to suction and hold the first workpiece 1. The moving device 92 is a device that supports the stage 91 so that it can move freely in the X, Y, and θ directions.

[0036] [Sheet supply section] The configuration of the sheet supply unit 60 of this embodiment will be described in detail below. The sheet supply unit 60 is made up of a cassette 61, a shaft 65, and a roller unit 68.

[0037] (cassette) The cassette 61 is detachable from the pressing device 40, and is an assembly that supplies the sheet B between the pressing member 51 and the second work 2. As shown in FIG. 7, the cassette 61 is composed of a pair of side plates 61a and a pair of connecting plates 70. The side plates 61a are plate-shaped members. The connecting plates 70 are plates with an L-shaped cross section. The cassette 61 has a rectangular frame shape by connecting the pair of connecting plates 70 to both ends of each side plate 61a. A flat frame 70a is provided on a side surface of the connecting plate 70 that is parallel to the Z direction and faces the inside of the cassette 61. The flat frame 70a is a plate-shaped member having a groove 70b into which a nut can be fitted (see FIGS. 5(A) and (B)). For example, the flat frame 70a is formed from aluminum. The side plate 61a of the cassette 61 is provided with a receiver 61d, a gear 61e, a brake member 61b, a guide shaft 63, and a roller shaft 66.

[0038] The receiver 61d is a rotatable support member that supports the shaft 65, and is attached to the side plate 61a. As shown in FIG. 7, the cassette 61 has a supply side Su that supplies the sheet B and a recovery side (winding side Wi) that recovers the sheet B. The receiver 61d is provided on each of the supply side Su and winding side Wi of the side plate 61a. As shown in FIG. 8, the receiver 61d is composed of a rotating shaft 61f and a connecting portion 61g. The rotating shaft 61f penetrates the side plate 61a and is attached rotatably relative to the side plate 61a. The rotating shaft 61f has, for example, a cylindrical shape, and one end of the rotating shaft 61f is disposed inside the cassette 61, and the other end of the rotating shaft 61f is disposed outside the cassette 61. A connecting portion 61g for connecting to the shaft 65 is provided on one end of the rotating shaft 61f. The connecting portion 61g is a cylindrical member with a bottom, and a groove 61h is provided on the side surface. A pin 65e provided on the tip (projection 65a) of a shaft 65 described later fits into this groove 61h, so that the shaft 65 rotates as the receiver 61d rotates. A gear 61e or a brake member 61b is provided on the other end of the rotating shaft 61f.

[0039] The gear 61e converts force from an external power source into rotational force and transmits it to the shaft 65 (see Figs. 5 and 8). The gear 61e is fixed to the other end of the rotating shaft 61f, and is connected to an external power source when the cassette 61 is placed at the crimping position of the crimping device 40. With this configuration, stress transmitted from the external power source to the gear 61e is transmitted to the shaft 65 via the receiver 61d.

[0040] The brake member 61b is a member for suppressing rotation in the opposite direction to the rotation direction of the gear 61e. For example, the weight of the wound sheet B may cause the shaft 65 to rotate in the opposite direction to the rotation direction of the gear 61e. The brake member 61b suppresses such rotation. The brake member 61b is, for example, a friction clutch, a slip clutch, or a back torque limiter. As shown in FIG. 7, when the gear 61e is provided on the receiver 61d provided on the supply side Su of one side plate 61a1, the brake member 61b is provided on the receiver 61d provided on the supply side Su of the other side plate 61a2. The same is true for the winding side Wi. That is, it is sufficient to provide the gear 61e on one of the receivers 61d on the same axis and provide the brake member 61b on the other. Therefore, the gear 61e is provided on one end of the shaft 65 via the receiver 61d, and the brake member 61b is provided on the other end of the shaft 65 via the receiver 61d.

[0041] The guide shaft 63 is a cylindrical member having approximately the same length as the connecting plate 70, and the surface is non-adhesive and smooth. The guide shaft 63 is configured to be rotatable with respect to the side plate 61a. The guide shaft 63 serves to guide the supplied sheet B, and one guide shaft 63 is provided on each of the supply side Su and the winding side Wi. The guide shaft 63 is disposed below the shaft 65 so as to be parallel to the shaft 65. The roller shaft 66 is a shaft that supports the roller portion 68. The roller shaft 66 is a cylindrical member having approximately the same length as the connecting plate 70. The roller shaft 66 is disposed on each of the side plates 61a below the shaft 65 on the supply side Su and the winding side Wi so as to be parallel to the shaft 65. The surface of the roller shaft 66 is smooth, so that the roller portion 68 can easily slide on the roller shaft 66.

[0042] (shaft) As shown in FIG. 9(A), the shaft 65 is composed of a main body 651 and a protrusion 65a. The main body 651 has a cylindrical shape, and protrusions 65a are provided on both ends of the main body 651. The main body 651 is sometimes called the shaft 65. The protrusion 65a provided on one end of the main body 651 is provided so as to be able to be embedded in the main body 651, and the protrusion 65a provided on the other end of the main body 651 is fixed to the main body 651. For example, as shown in FIG. 8, a cylindrical hollow portion that opens on the end face is provided on one end of the main body 651. The protrusion 65a is provided inside the hollow portion via a spring 65b. As a result, the protrusion 65a provided on one end of the main body 651 is movable in the axial direction and is able to be embedded in the main body 651 (shaft 65). This makes it easy to attach and detach the shaft 65 to and from the receiver 61d. A scale 65c is provided from one end of the shaft 65 to the center of the shaft 65. 9(A), there is a notch 65d from the other end to the center of the shaft 65. The cross section of this notch is semicircular as shown in FIG. 9(C), which enables the rotational force transmitted from the gear 61e to be transmitted to the seat B efficiently.

[0043] As shown in FIG. 9(B), the shaft 65 is provided with the sheet B, the pipe 62, the flanges 64a and 64b, and the fixing member 650. The sheet B is a cushion sheet for shock absorbing. The material of the sheet B is, for example, a heat-resistant film such as silicone resin or fluororesin. When the first work 1 and the second work 2 are pressurized and heated, the sheet B is interposed between them, thereby preventing the melted ACF 3 from adhering to the pressure-bonding portion 50. As shown in FIG. 5(A), the sheet B is wound around the outer periphery of the pipe 62A (pipe 62). For ease of understanding, the sheet B is not wound around the pipe 62B on the winding side Wi in FIG. 5(A)(B). Also, in FIG. 5(A)(B), the arrangement of the supply side Su and the winding side Wi is opposite to that in FIG. 4. Also, when the pipe 62A and the pipe 62B are not distinguished from each other, they may be called the pipe 62.

[0044] As shown in FIG. 10(A), the pipe 62 is a hollow cylinder, and grooves 62a are provided at both ends. The length of the pipe 62 is determined according to the width of the sheet B. Therefore, pipes 62 of different lengths are attached to the shaft 65 according to the width of the sheet B. As shown in FIG. 5(A)(B), a thick flange 64a is fixed to one end of the pipe 62, and a thin flange 64b is fixed to the other end. The shaft 65 communicates the pipes 62A and 62B with the centers of the flanges 64a and 64b. When the flanges 64a and 64b are not distinguished from each other, they may be called flanges 64. As shown in FIG. 10(B), the thick flange 64a has an insert plate 641, a disk 642, and a set collar 643. The disk 642 has a structure with a hole in the center of the circle. The thickness of the disk 642 is thicker than the thickness of the roller 68a of the roller unit 68 described later. In this embodiment, the outer shape of the disk 642 is the largest among the components that make up the flange 64a. Therefore, the outer periphery of the disk 642 is the outer periphery of the thick flange 64a. Therefore, the outer periphery of the thick flange 64a is round, and the periphery is a circumferential surface. The insert plate 641 is fixed to one surface of the disk 642. The insert plate 641 has a protrusion 641a, which fits into a groove 62a provided at the end of the pipe 62. This allows the pipe 62 and the thick flange 64a to rotate together. The set collar 643 is attached to the other surface of the disk 642 and is a member for fixing the thick flange 64a to the shaft 65. The set collar 643 is C-shaped and has a slit (not shown) in a structure with a hole in the center of the circle. In addition, the set collar 643 is provided with a screw 643a for adjusting the width of the slit (not shown). By tightening the screw 643a provided in the set collar 643, the slit portion of the set collar 643 is bent. By bending the set collar 643, the thick flange 64a is fixed to the shaft 65. This allows the shaft 65 and the thick flange 64a to rotate together. In other words, by tightening the screw 643a provided in the set collar 643 with the protrusion 641a of the insertion plate 641 fitted into the groove 62a provided in the end of the pipe 62, the pipe 62 and the shaft 65 can rotate together.When the sheet B is wrapped around the pipe 62, the sheet B and the shaft 65 can rotate together.

[0045] As shown in FIG. 11(A), the thin flange 64b has an insert plate 644, a disk 645, and a spacer 646. The insert plate 644 is a member having the same shape and function as the insert plate 641, and therefore a description thereof will be omitted. The disk 645 is a disk having the same diameter and shape as the disk 642, and is thinner than the disk 642. Similarly to the thick flange 64a, the outer periphery of the disk 645 is the outer periphery of the thin flange 64b. Therefore, the outer periphery of the thin flange 64b is also round, and the periphery forms a circumferential surface. The spacer 646 is attached to the surface of the disk 645 opposite to the surface to which the insert plate 644 is attached. As shown in FIG. 11(B), the spacer 646 is U-shaped, and is provided with a recess 647, a countersunk groove 648, and a hole 649. For ease of understanding, a screw is inserted into the hole 649 on one side. The bottom of the recess 647 of the spacer 646 has a flat surface and contacts the notch 65d of the shaft 65 as shown in FIG. 11(C). When the shaft 65 rotates, the notch 65d of the shaft 65 is caught on the bottom of the recess 647 of the spacer 646, so that the flange 64b can be prevented from rotating freely relative to the shaft 65. In addition, the U-shaped surface of the spacer 646 is pressed by the fixing member 650. Therefore, a countersunk groove 648 is provided on the U-shaped surface of the spacer 646. The width of the countersunk groove 648 is larger than the screw head, and is large enough that the surface pressed by the fixing member 650 can be formed to sandwich the countersunk groove 648 on both sides of the countersunk groove 648. The depth of the countersunk groove 648 is deep enough that the screw head does not protrude. A hole 649 is formed in the U-shaped surface of the spacer 646, in the portion where the countersunk groove 648 is formed. The holes 649 are through holes for inserting screws. In this embodiment, two holes 649 are formed. The spacer 646 is screwed to the disk 645 by the screws inserted into the holes 649.

[0046] The fixing member 650 is a collar that has a clamp ring (not shown) and is fixed to the shaft 65. When the clamp ring of the fixing member 650 is pressed, the collar becomes movable on the shaft 65, whereas when the clamp ring is released, the collar is fixed to the shaft 65.

[0047] (Roller part) As described above, the roller portion 68 supported by the roller shaft 66 in the cassette 61 is a support portion that rotatably supports any one of the shaft 65, the pipe 62, the sheet B, and the flange 64, and suppresses bending of the shaft 65. In this embodiment, two roller portions 68 are arranged for one shaft 65 (see FIG. 5(B)). One roller portion 68 supports the thick flange 64a, and the other roller portion 68 supports the thin flange 64b. That is, in this embodiment, four roller portions 68 are provided for the sheet supply portion 60. Each roller portion 68 is supported by the roller shaft 66 and the connecting plate 70, and is fixed to the flat frame 70a of the connecting plate 70. As shown in FIGS. 12(A) to (C), the roller portion 68 has a plate 68b, a roller 68a, a fixing portion 68c, and a dust receiving plate 68d. The plate 68b is substantially rectangular parallelepiped-shaped, and is provided with a first recess 68e that opens on its top surface and one side surface. Further, a notch 68f is provided on the upper surface of the plate 68b to avoid contact with the flanges 64a, 64b. That is, the notch 68f is provided in the first recess 68e. The roller 68a is disposed in the first recess 68e.

[0048] The roller 68a is rotatably attached in the first recess 68e of the plate 68b at a position where it can support any one of the sheet B wound around the pipe 62, the flange 64, or the shaft 65. In this embodiment, two rollers 68a are provided on the plate 68b to support the flange 64. The rollers 68a contact the circumferential surface of the flange 64. As described above, the first recess 68e has a notch 68f. Therefore, when the roller portion 68 moves on the roller shaft 66 in accordance with the width of the sheet B, the plate 68b and the flange 64 do not interfere with each other. In other words, the roller portion 68 can change its position in the width direction of the sheet B in accordance with the width of the sheet B.

[0049] The lower surface of the plate 68b is provided with a second recess 68g that contacts the roller shaft 66 and a third recess 68h for avoiding contact with the guide shaft 63. The second recess 68g is provided on the lower surface of the plate 68b, on the side farther from the connecting plate 70. The lower surface of the plate 68b on the side closer to the connecting plate 70 contacts the connecting plate 70. In other words, the plate 68b is supported by the roller shaft 66 and the connecting plate 70, and is provided so as to be movable on the roller shaft 66. The third recess 68h is provided between the part of the lower surface of the plate 68b that contacts the connecting plate 70 and the second recess 68g. The guide shaft 63 guides the sheet B by rotating. Therefore, the third recess 68h is shaped so that a gap is formed between the plate 68b and the guide shaft 63 when the plate 68b is supported by the roller shaft 66 and the connecting plate 70. With this configuration, the third recess 68h can avoid contact with the guide shaft 63.

[0050] A fixing portion 68c that can be fixed to the flat frame 70a of the connecting plate 70 is provided on the side of the plate 68b close to the connecting plate 70. For example, a nut is provided inside the groove 70b of the flat frame 70a, and the fixing portion 68c of the roller portion 68 is fixed by the nut and a screw. In other words, the fixing portion 68c of the roller portion 68 is fixed to the groove 70b of the flat frame 70a.

[0051] A dust receiving plate 68d is provided on the surface of the plate 68b on which the first recess 68e is provided. The first recess 68e and the dust receiving plate 68d form a dust receiving portion 68i. That is, the dust receiving portion 68i is provided on the lower side of the roller 68a of the plate 68b. Particles are generated by friction between the roller 68a and any of the sheet B, flanges 64a, 64b, and shaft 65 wrapped around the pipe 62. However, if the dust receiving portion 68i is formed, the generated particles fall into the dust receiving portion 68i, so that it is possible to prevent the particles from falling onto and adhering to the first workpiece 1.

[0052] As shown in Fig. 4, the pressing device 40 is provided with a rotating body 41. The rotating body 41 is a member for calculating the supplied length of the sheet B. The rotating body 41 comes into contact with the outer circumferential surface of the sheet B wound via a pipe 62A on a shaft 65 provided on the supply side Su of the cassette 61. When the sheet B is sent out from the supply side Su, the rotating body 41 rotates by an amount of rotation (rotation angle) according to the sent-out length. An encoder (not shown) is connected to the rotating body 41, and the amount of rotation of the rotating body 41 input to the encoder is converted into an electric signal and output to the control unit 100.

[0053] The control unit 100 stores programs that control the heating temperatures of the heating units 52 and 82, the pressurization timing of the pressurization source 53, and the operations of the drive mechanism 54, the moving device 92, and an external power source. The control unit 100 controls each unit by reading and executing the programs and data using a processing device such as a PLC or a CPU.

[0054] [Installation of Sheet B] Next, a procedure for attaching the cassette 61 with the sheet B attached thereto to the pressure bonding device 40 will be described with reference to Figures 4, 5, and 13 to 17. Figure 13 is a flow chart showing the procedure for attaching the sheet B to the pressure bonding device 40.

[0055] First, the sheet B is attached to the shaft 65 (S01). When the second work 2 is fully crimped, the position (attachment position) where the sheet B is between the crimping section 50 and the backup section 81 is determined in advance. At this time, it is preferable to position the position where the thick flange 64a is fixed to the shaft 65 using the scale 65c of the shaft 65 as a guide. In this way, the position where the thick flange 64a is fixed to the shaft 65 can be easily positioned. Therefore, as shown in FIG. 14(A), the thick flange 64a is positioned on the end side of the shaft 65 where the scale 65c is provided. After the positioning of the thick flange 64a to the position where it is fixed to the shaft 65 is completed, the screw 643a of the set collar 643 is tightened to fix the thick flange 64a to the shaft 65.

[0056] Next, as shown in FIG. 14(B), the pipe 62 with the sheet B wound around it is inserted into the insertion plate 641 of the thick flange 64a. Specifically, the protrusion 641a of the insertion plate 641 is inserted into the groove 62a of the pipe 62. This fixes the pipe 62 to the thick flange 64a. After that, as shown in FIG. 14(C), the insertion plate 644 of the thin flange 64b is inserted into the pipe 62. Specifically, the protrusion 641a of the insertion plate 644 is inserted into the groove 62a of the pipe 62. With the thick flange 64a fixed to the shaft 65, the spacer 646 is pushed by the fixing member 650, so that the thin flange 64b can press the pipe 62. In other words, the thin flange 64b is pushed toward the thick flange 64a, so that the pipe 62 can be sandwiched between the flanges 64a and 64b. This prevents the pipe 62 and the thin flange 64b from shifting in the width direction of the pipe 62. Therefore, the rotating force of the shaft 65 is transmitted to the pipe 62 via the flanges 64a, 64b. When inserting the thin flange 64b into the pipe 62, the clamp ring of the fixing member 650 is pressed while inserting it. The fixing member 650 is fixed to the shaft 65 by releasing the clamp ring. As a result, the thin flange 64b is fixed to the shaft 65.

[0057] 15, in the thin flange 64b, the spacer 646 comes into contact with the bottom surface of the notch 65d of the shaft 65 and the recess 647. Therefore, the thin flange 64b is prevented from rotating relative to the shaft 65.

[0058] Next, the shaft 65 on which the sheet B is attached is attached to the cassette 61 (S02). As shown in FIG. 16, the shaft 65 on which the sheet B is wound is attached to the supply side Su of the cassette 61. When the shaft 65 on which the sheet B is wound is attached to the cassette 61, the roller portion 68 is retracted to a position where it does not interfere with the attachment. First, the end of the shaft 65 on which the projection 65a that can be embedded in the main body 651 is provided is inserted into one of the receivers 61d. At this time, the pin 65e provided on the projection 65a that can be embedded is fitted into the groove 61h of the connecting portion 61g of the one of the receivers 61d. Next, while the projection 65a that can be embedded is embedded in the shaft 65, the pin 65e provided on the other projection 65a of the shaft 65 is fitted into the groove 61h of the connecting portion 61g of the other receiver 61d. Thereafter, the roller portion 68, which had been retracted to a position that would not interfere with the attachment, is moved under the flanges 64a, 64b, and the flanges 64a, 64b are brought into contact with the roller 68a. Thereafter, the shaft 65 having the pipe 62 (pipe 62B) to which the sheet B is not attached is similarly attached to the winding side Wi of the cassette 61.

[0059] Sheet B is sent out from pipe 62A on the supply side Su of cassette 61, and taken up on pipe 62B on the winding side Wi of cassette 61. For example, sheet B wound around pipe 62A on the supply side Su is sent out by rotation of shaft 65. The sent-out sheet B is guided by guide shaft 63, taken up on pipe 62B attached to shaft 65 on the winding side Wi, and collected (see FIG. 5(A)).

[0060] Then, when the sheet B is wound around the pipes 62 on the supply side Su and the winding side Wi of the cassette 61, the cassette 61 is attached to the crimping device 40 main body as shown in FIG. 17 (S03). The cassette 61 is moved to the crimping position along the rail member. As a result, the sheet B is arranged at the crimping position. When the cassette 61 is arranged at the crimping position, the gear 61e is connected to an external power source. When the cassette 61 is attached to the crimping position of the crimping device 40, the rotating body 41 comes into contact with the outer circumferential surface of the sheet B wound around the shaft 65 on the supply side Su (see FIG. 4). When the sheet B is supplied from the supply side Su, the rotating body 41 rotates by an amount of rotation (rotation angle) according to the length of the sheet B supplied. The amount of rotation of the rotating body 41 is output to the control unit 100. The control unit 100 calculates the length of the sheet B supplied from the output amount of rotation (rotation angle) of the rotating body 41.

[0061] [Effect] Next, in the crimping device 40 of this embodiment having the above-mentioned configuration, the load of the sheet B applied to the shaft 65 when the sheet B is attached to the crimping device 40 will be described.

[0062] After the second work 2 is pressed against the first work 1 via the sheet B, the shaft 65 is rotated by an external power source. This causes the sheet B to be supplied and taken up. The length of the supplied sheet B is calculated from the amount of rotation of the rotor 41. At this time, as shown in FIG. 18(A), the weight of the sheet B and the pipe 62 is applied as a load to the shaft 65. Therefore, a downward load is applied to the shaft 65. The shaft 65 is also in contact with the roller 68a via the flange 64. Therefore, the load applied to the shaft 65 is transmitted to the roller 68a as indicated by the arrow in FIG. 18(A).

[0063] Furthermore, the plate 68b to which the roller 68a is fixed is supported by the roller shaft 66 and also by the connecting plate 70. Therefore, as shown in Fig. 18(B), the load applied to the plate 68b is distributed to the roller shaft 66 and the connecting plate 70. Therefore, even if the load due to the sheet B and the pipe 62 becomes large, the load is not applied only to the shaft 65, but is distributed to the roller shaft 66 and the connecting plate 70.

[0064] As described above, the two rollers 68a of the roller portion 68 support the outer periphery of the flange 64. When the flange 64 rotates while the sheet B is being wound, the two rollers 68a of the roller portion 68 rotate in accordance with the rotation of the flange 64. That is, the roller portion 68 rotatably supports the flange 64. In addition, the load applied to the roller portion 68 is distributed to the roller shaft 66 and the connecting plate 70. Therefore, the roller shaft 66 supporting the roller portion 68 does not bend downward, and the sheet B wound around the pipe 62 is supported at a predetermined height in the cassette 61. Therefore, the shaft 65 can be prevented from bending. As a result, the calculated value of the sheet diameter during winding and unwinding of the sheet B does not become unstable, and the sheet B can be stably supplied from the shaft 65 of the supply side Su to the shaft 65 of the winding side Wi. In particular, when the rotating body 41 is used to calculate the length of the supplied sheet B, if the shaft 65 is bent and rotates in an elliptical orbit, the rotation of the rotating body 41 becomes unstable. However, since the two rollers 68a of the roller unit 68 support the outer periphery of the flange 64, it is possible to suppress the rotation of the rotating body 41 from becoming unstable. Therefore, the calculated value of the sheet diameter when the sheet B is wound up and unwound does not become unstable, and the sheet B can be stably supplied from the shaft 65 of the supply side Su to the shaft 65 of the winding side Wi. In addition, the fixed position of the plate 68b can be freely changed in the length direction of the roller shaft 66 by loosening the fixing portion 68c. Therefore, even when sheets B of different widths are used, it is possible to support the flange 64 by the roller unit 68. In addition, in this embodiment, the flange 64 is supported so as to sandwich the sheet B by the two roller units 68. Therefore, the load by the sheet B and the pipe 62 can be distributed to the two roller units 68. In other words, the load applied to one roller unit 68 is distributed. In this case, the number of positions where the load is applied to the roller shaft 66 increases, but the load applied at those positions decreases. Therefore, it is possible to further prevent the shaft 65 from bending. In addition, the roller portion 68 supports the flange 64 at a position where it does not come into contact with the sheet B. Therefore, it is possible to prevent particles from adhering to the sheet B and tearing it.

[0065] [effect] (1) The crimping device 40 of this embodiment is a crimping device for a second work 2 in which a sheet B wrapped around a pipe 62 is provided between the crimping section 50 and the second work 2, and the second work 2 is crimped to a first work 1 via the crimping section 50 via the sheet B, and is equipped with flanges 64 fixed to both ends of the pipe 62, a shaft 65 to which the pipe 62 and the flange 64 are fixed and which rotates the sheet B, a receiver 61d which is a rotatable support member that supports the shaft 65, and a roller section 68 that rotatably supports any one of the sheet B, the flange 64, or the shaft 65 and suppresses deflection of the shaft 65.

[0066] In this embodiment, even when a sheet B corresponding to a first work 1 having a narrow width is attached to a shaft 65 to which a sheet B corresponding to a first work 1 having a wide width can be attached, it is possible to suppress the deflection of the shaft 65. As a method for suppressing the deflection of the shaft 65, a method of increasing the diameter of the shaft 65 is considered. However, when the diameter of the shaft 65 is increased, the weight of the shaft 65 also increases. When replacing the sheet B, the weight of the shaft 65 needs to be suppressed to a weight that the worker can carry the shaft 65. Therefore, there is a limit to the method of increasing the diameter of the shaft 65. In the crimping device 40 of this embodiment, the roller portion 68 supports any one of the sheet B, the flange 64, and the shaft 65, so that the load applied to the shaft 65 can be distributed to the roller shaft 66 and the connecting plate 70 of the cassette 61 via the roller portion 68. Therefore, the deflection of the shaft 65 can be suppressed. In addition, it is possible to suppress the calculated value of the sheet diameter from becoming unstable due to the deflection of the shaft 65. The rollers 68a, when combined with the flanges 64, are capable of rotatably supporting the shaft 65, and are capable of dispersing the load acting on the shaft 65 without impeding the rotation of the shaft 65.

[0067] (2) The shaft 65 can be fitted with pipes 62 of different lengths in accordance with the width of the sheet B, and the roller portion 68 can be moved in the width direction of the sheet B in accordance with the width of the sheet B. As a method for suppressing the deflection of the shaft 65, a method of calculating the amount of deflection in advance and correcting the feed amount of the sheet B from the calculated amount of deflection is also conceivable. However, the number and width of the COFs used differ depending on the type of panel. Therefore, the width of the sheet B used is not constant. Furthermore, even if the same width of sheet B is used, the amount of deflection differs depending on the attachment position of the sheet B to the shaft 65. Therefore, when sheets B of different widths are used, or when the attachment position is changed even if the same width of sheet B is used, the amount of deflection of the shaft 65 is not constant, so the amount of deflection must be calculated each time. Therefore, it is time-consuming and difficult to correct the feed amount of the sheet B from the amount of deflection. According to the pressure bonding device 40 of this embodiment, the roller portion 68, which is configured to suppress the deflection of the shaft 65, can be arranged around the shaft 65 in accordance with the width and attachment position of the sheet B. Therefore, even when sheets B of different widths are used, or when the attachment position of the sheet B is changed, bending of the shaft 65 can be easily prevented, enabling stable supply and winding.

[0068] (3) There are at least two roller parts 68, which rotatably support either the flange 64 or the shaft 65 so as to sandwich the sheet B at a position that does not contact the sheet B. Either the flange 64 or the shaft 65 is supported by the two roller parts 68 so as to sandwich the sheet B. Therefore, the load from the sheet B and the pipe 62 can be distributed to the two roller parts 68. In this case, the number of positions where the load is applied to the roller shaft 66 increases, but the load applied at those positions decreases. Therefore, it is possible to further suppress the shaft 65 from bending. In addition, the roller parts 68 support either the flange 64 or the shaft 65 at a position that does not contact the sheet B. Therefore, it is possible to prevent particles from adhering to the sheet B or from being torn.

[0069] (4) The roller section 68 further includes a roller shaft 66 extending parallel to the shaft 65 of the present embodiment, and includes a plate 68b movably provided on the roller shaft 66, and a roller 68a provided on the plate 68b and rotatably supporting any one of the sheet B, the flange 64, or the shaft 65. The plate 68b on which the roller 68a is provided is supported slidably relative to the roller shaft 66. The plate 68b can be fixed to and released from the connecting plate 70 by the fixing portion 68c. When the plate 68b is not fixed by the fixing portion 68c, the fixing portion 68c does not prevent the plate 68b from sliding. On the other hand, when the plate 68b is fixed by the fixing portion 68c, the plate 68b does not slide on the roller shaft 66. This ensures that the roller 68a can support the flange 64, the shaft 65, or the sheet B, while when the shaft 65 is attached to the cassette 61, the roller section 68 can be moved to a position that does not get in the way.

[0070] In addition, by configuring the roller unit 68 to be slidable on the roller shaft 66, the roller unit 68 can be positioned at a position that matches the width of the sheet B. Therefore, the sheet B can be stably supplied and wound up regardless of whether the sheet B is wide or narrow.

[0071] (5) In this embodiment, the flange 64 has a round outer periphery and is a circumferential surface, and the rollers 68a contact this circumferential surface to rotatably support the flange 64. The weight of the pipe 62 and the sheet B is one of the causes of the deflection of the shaft 65. If the rollers 68a support the lower part of the pipe 62 (sheet B), the load on the exposed part of the shaft 65 can be reduced. The flange 64 contacts both ends of the sheet B. Therefore, supporting the flange 64 with the rollers 68a can further suppress the deflection of the shaft 65.

[0072] (6) One of the flanges 64 in this embodiment is thicker than the roller 68a. By making the thickness of the thick flange 64a thicker than the roller 68a, it is possible to prevent the sheet B from contacting the roller 68a when attaching and detaching the shaft 65 from the cassette 61. If the roller 68a and the thick flange 64a have the same dimensions, the roller 68a may contact the sheet B due to a slight misalignment. From this perspective, it is possible to make not only the thick flange 64a but also the thin flange 64b thicker than the roller 68a, but by making the flange 64b thinner than the roller 68a, the frictional force between the roller 68a and the flange 64b can be reduced and the rotation can be made smoother. In this embodiment, by combining the thick flange 64a and the thin flange 64b, it is possible to obtain two effects: prevention of contact between the roller 68a and the sheet B and smooth rotation between the flange 64 and the roller 68a.

[0073] (7) In this embodiment, a dust receiving portion 68i is further provided below the roller 68a of the plate 68b. By providing the dust receiving portion 68i below the roller 68a, even if the roller 68a comes into contact with the flange 64 or the like and generates dust, the dust will not fall onto the first workpiece 1.

[0074] (8) The plate 68b of this embodiment has a first recess 68e in which the roller 68a is provided, and a dust receiving plate 68d which forms the dust receiving portion 68i together with the first recess 68e. The dust receiving portion 68i does not need to be formed by the plate 68b alone. By attaching the dust receiving plate 68d to the first recess 68e of the plate 68b to form the dust receiving portion 68i, it is possible to provide the dust receiving portion 68i that prevents dust from falling without complex processing.

[0075] [Variations] (1) In the above embodiment, the rollers 68a rotatably support the flange 64. However, the rollers 68a may rotatably support the shaft 65 or the sheet B instead of the flange 64. Even in this case, it is possible to suppress bending of the shaft 65, similar to the case where the rollers 68a rotatably support the flange 64.

[0076] (2) In the above embodiment, each of the two roller portions 68 has two rollers 68a to rotatably support the flange 64. However, each of the two roller portions 68 may have one roller 68a to rotatably support the flange 64, as shown in FIG.

[0077] (3) In the above embodiment, the plate 68b of the roller unit 68 is supported by the roller shaft 66 and the connecting plate 70. However, the plate 68b may be supported by two roller shafts 66. In this case, it is preferable to further provide a second recess 68g corresponding to the additional roller shaft 66 on the lower surface of the plate 68b, and to make the connecting plate 70 of the cassette 61 shaped like a plate so as not to interfere with the additional roller shaft 66.

[0078] (4) In the above embodiment, when the shaft 65 is attached to the cassette 61, the roller portion 68 is retreated to a position where it does not interfere with the attachment. However, if the width and attachment position of the sheet B are not changed, the roller portion 68 does not need to be moved from the position fixed by the fixing portion 68c. A thick flange 64a is provided at the end of the shaft 65 on the side where the protrusion 65a that is provided so as to be embedded in the shaft 65 is provided. The thickness of the thick flange 64a is thicker than the thickness of the roller 68a. Therefore, when the shaft 65 is attached or detached, the sheet B can be prevented from contacting the roller 68a. In other words, it is not necessary to retreat the roller portion 68 to a position where it does not interfere with the attachment every time the shaft 65 is attached or detached. Therefore, the shaft 65 can be easily attached or detached while preventing the shaft 65 from bending.

[0079] (5) In the above embodiment, the cassette 61 is provided with one pair of shafts 65 on the feed side and one pair of shafts 65 on the winding side. However, as shown in FIG. 21 given as the conventional technique, the cassette 61 may be provided with a plurality of pairs of shafts 65. For example, when different types of sheets (silicon sheet and Teflon sheet) are used in a stacked manner, two types of sheets are loaded in the cassette 61. FIG. 20 is a diagram showing the configuration of the roller unit 68 that allows two types of sheets B to be set in the cassette 61. The shape of the plate 68b of the roller unit 68 is different from that of the present embodiment, and two notches, first recesses 68e, and third recesses 68h are provided. In this way, even when a plurality of types of sheets are used in a stacked manner, the calculated value of the sheet diameter can be prevented from becoming unstable due to the bending of the shaft 65, and stable winding and unwinding can be achieved.

[0080] [Other embodiments] Although the embodiment of the present invention and the modified examples of each part have been described above, these embodiments and the modified examples of each part are presented as examples and are not intended to limit the scope of the invention. These novel embodiments described above can be implemented in various other forms, and various omissions, substitutions, modifications, and combinations can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the invention described in the claims. [Explanation of symbols]

[0081] 1. First Work 2. Second Work 11, 21 Lead 3 ACF 31 Base material 32 Conductive particles 40 Crimping device 41 Rotating Body 50 Crimping section 51 Pressure member 51a Pressurizing section 52 Heating section 53 Pressure source 54 Drive mechanism 60 Sheet supply unit 61 Cassette 61a, 61a1, 61a2 side plate 61b Brake member 61d Support 61e Gear 61f Rotation axis 61g connection part 61h groove 62, 62A, 62B Pipes 62a groove 63 Guide shaft 64, 64a, 64b flanges 641 Insert plate 641a Protrusion 642 Disc 643 Set Color 643a Screw 644 Insert plate 645 Disc 646 Spacer 647 Recess 648 Counterbore 649 holes 650 Fixing member 65 Shaft 651 Main unit 65a protrusion 65b Spring 65c scale 65d cutout 65e Pin 66 Roller shaft 68 Roller part 68a Lola 68b Plate 68c Fixed part 68d Garbage plate 68e First recess 68f Cutout 68g Second recess 68h 3rd recess 68i Garbage collection section 70 Connecting plate 70a flat frame 70b groove 72 Mobile Device 80 Pressure receiving part 81 Backup Department 82 Heating section 90 Support part Stage 91 92 Mobile Devices 100 Control section B Sheet

Claims

1. A crimping device for electronic components, comprising: a sheet wound around a pipe provided between a crimping unit and an electronic component; and a crimping head crimping the electronic component onto a substrate via the sheet, Flanges fixed to both ends of the pipe; a shaft to which the pipe and the flange are fixed and which rotates the seat; A support member that is a rotatable support member that supports the shaft; a support portion that rotatably supports any one of the seat, the flange, or the shaft and suppresses bending of the shaft; A crimping device comprising:

2. The pipes of different lengths can be attached to the shaft in accordance with the width of the seat, The pressing device according to claim 1 , wherein the support portion changes its position in a width direction of the sheet in accordance with the width of the sheet.

3. The crimping device according to claim 1 , wherein the support portion includes at least two support portions, and rotatably supports the flange or the shaft so as to sandwich the sheet at a position not in contact with the sheet.

4. Further comprising a roller shaft extending parallel to the shaft, The support portion includes a plate movably provided on the roller shaft; a roller provided on the plate and configured to rotatably support any one of the sheet, the flange, or the shaft; The crimping device according to claim 1 , further comprising:

5. 5. The crimping device according to claim 4, wherein the flange has a round outer periphery and a circumferential surface, and the roller contacts the circumferential surface to rotatably support the flange.

6. 6. The crimping device according to claim 5, wherein one of the flanges is thicker than the roller.

7. 5. The pressing device according to claim 4, further comprising a dust receiving portion provided on the plate below the roller.

8. The plate has a recess in which the roller is provided, and a dust receiving plate which forms the dust receiving portion together with the recess; 8. The crimping device according to claim 7, further comprising:

9. A cassette that is detachable from the crimping device, the shaft is rotatably fixed, and the support portion is fixed, The crimping device according to any one of claims 1 to 8, further comprising:

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