JPH09297317A - Press welding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the work to adjust the level degree of a press welding head by constituting hanging means of first to third hanging struts and level adjusting means disposed at the respective hanging struts. SOLUTION: The correction of the inclination in the lateral direction of the press welding head 55 is executed by moving and adjusting a supporting member (slide guide plate) 26 to a vertically by the level adjusting means disposed at the first hanging stretching 20. The inclination in the lateral direction of the supporting member 26 is then adjusted and the entire part of a holding unit A is inclined to correct the inclination in the lateral direction. The inclination in the lateral direction of the press welding head 55 held at this holding unit A is thus corrected. The correction in the longitudinal direction of the press welding head 55 is executed by correcting the inclination in the longitudinal direction of the supporting member 26 by actuating either of the level adjusting means disposed at the second and third hanging struts 22, 22, and by correcting the inclination in longitudinal direction of the supporting member by inclining the entire part of the holding unit A, by which the inclination in the longitudinal direction of the press welding head 55 held at this holding unit A is thus corrected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible printed circuit board for connecting an external circuit connecting electrode terminal portion of a liquid crystal panel for display and an external circuit, or a flexible printed circuit board on which a liquid crystal driving IC is mounted. The present invention relates to a crimping device that crimps a connection terminal portion to a printed board.

[0002]

2. Description of the Related Art A crimping device of this type is provided with an anisotropic conductive adhesive or heat seal when connecting an electrode connecting portion of a display panel composed of a liquid crystal display (LCD) device and a connecting terminal portion of a driving circuit component. Used to connect through.

The anisotropic conductive adhesive is made of a thermosetting or thermoplastic synthetic resin containing conductive particles, has electrical anisotropy, and is conductive in the thickness direction. Of the adhesive, which is electrically insulating in the surface direction, and a cover film made of a heat-resistant and peelable fluorine-based resin that covers one surface of the adhesive.

As shown in FIGS. 22 to 25, the conventional crimping device has an electrode connecting portion of a liquid crystal panel for display and a connecting terminal portion of a flexible printed circuit board with an anisotropic conductive adhesive interposed therebetween. A stage 80 to be placed, a crimping head 81 that moves up and down, a holding unit 82 that holds the crimping head 81 at its lower end, a slide guide plate 83 that supports the holding unit 82 so as to be movable in the vertical direction, and this slide. And a suspending means 85 for suspending the guide plate 83 on the apparatus frame 84. The suspending means 85 suspends the slide guide plates 83 in the left and right front and rear directions, respectively, and four suspension columns (four) 86. 87, 88, 89, and horizontal adjusting means provided on the suspension columns 86, 87, 88, 89 for vertically adjusting the slide guide plate 83. As shown in FIG. 25, these horizontal adjusting means are provided with a thread forming portion 90 and an inserting portion 91 at the bottom of the suspension columns 86, 87, 88, 89, and a horizontal adjusting nut 92 is screwed onto the thread forming portion 90. The hanging pillar 8
The mounting bolts 95 inserted into the insertion holes 93 of the slide guide plate 83 and inserted through the holding plate members 94 are the suspension columns 86, 87, 8 and 6, 87, 88, 89.
The holding plate member 94 is configured to abut on the lower surface of the slide guide plate 83 by being screwed into the screw holes 96 on the lower end surfaces of the Nos. 8 and 89 and tightened to the mounting bolts 95.

The correction of the inclination of the crimping head 81 in the left-right direction is performed as follows. That is, the two front and rear suspension columns 86, 87 located on either the left or right side
In the horizontal adjusting means provided at (88, 89), the mounting bolt 95 is loosened to form a predetermined gap between the holding plate member 94 and the slide guide plate 83, and the horizontal adjusting nut 92 is moved to the upper or lower side. Screwing in the direction, and by moving the horizontal adjustment nut 92 by a predetermined amount, the slide guide plate 83 is moved by a predetermined amount in the upper or lower direction with the connection point with the other two suspension columns as a fulcrum. , The mounting bolt 9
5 to tighten the holding plate member 94 to the slide guide plate 83.
The bottom surface of the slide guide plate 83 is brought into contact with the bottom surface of the slide guide plate 83 to correct the inclination in the left-right direction.

By correcting the tilt of the slide guide plate 83 in the left-right direction, the entire holding unit 82 is tilted to correct the tilt in the left-right direction, and the pressure-bonding head 81 held by the holding unit 82 moves in the left-right direction. Correct the tilt.

Further, the correction of the inclination of the pressure bonding head 81 in the front-rear direction has been performed as follows. That is, in one or both of the horizontal adjusting means provided on the front and rear suspension columns 86, 88 (87, 89) located on the left and right, the mounting bolt 95 is loosened to hold the holding plate member 94 and the slide guide plate 83. A predetermined gap between them, and screw the leveling nut 92 upward or downward,
By moving the horizontal adjusting nut 92 by a predetermined amount, the slide guide plate 83 is moved upward or downward by a predetermined amount with a connection point with the other two suspension columns as a fulcrum, and the mounting bolt 95 is tightened. The holding plate member 94 is brought into contact with the lower surface of the slide guide plate 83 so that the slide guide plate 8
Correct the inclination of 3 in the front-back direction.

By correcting the inclination of the slide guide plate 83 in the front-rear direction, the entire holding unit 82 is tilted to correct the inclination in the front-rear direction, and the pressure-bonding head 81 held by the holding unit 82 in the front-rear direction is corrected. Correct the tilt.

Further, the pressure bonding head 81 has a pressure bonding surface forming portion 81B formed in the lower portion of the head main body 81A along the longitudinal direction (horizontal direction) of the head main body 81A, and a lower surface portion of the pressure bonding surface forming portion 81B. Was the crimping surface 96.

When the parallelism of the pressure bonding head 81 is obtained, a dummy glass plate (not shown) is placed and fixed on the stage 80, and a thermal paper (not shown) is placed on the dummy glass plate. On the slide guide plate 83,
The pressure-bonding head 81 is lowered, the pressure-bonding surface 96 of the pressure-bonding head 81 is brought into contact with the thermal paper, and the thermal paper is pressure-bonded to the dummy glass plate, so that the carbon of the thermal paper is attached to the surface of the dummy glass plate. , The adhesion of this carbon is the pressure bonding surface 9
6 is uniform, the parallelism in the left-right direction of the pressure bonding head 81 is good, but carbon adhesion is uneven on the left or right, and if it is not uniform, the parallelism in the left-right direction is poor. To be judged.

Further, if the carbon deposition on the dummy glass plate is uneven in the front or rear and is not uniform, it is judged that the parallelism in the front and rear direction is poor.

[0012]

However, in the above-mentioned conventional crimping device, the suspending means 85 of the slide guide plate 83 are provided on the left and right front and rear sides respectively.
4 suspension columns 86, 87, 88, 89 for suspending 3
And the horizontal adjusting means provided on these suspension columns 86, 87, 88, 89 for vertically adjusting the slide guide plate 83.
In order to correct the inclination of 1 in the left-right direction, it is necessary to operate the horizontal adjusting means provided on the two suspension columns 86, 87 (88, 89) located on either the left side or the right side. To correct the inclination in the front-back direction, one or both of the horizontal adjusting means provided on the front and rear suspension columns 86, 88 (87, 89) located on the left and right must be operated. There is a problem that the work of adjusting the levelness becomes extremely complicated.

Further, since the pressure-bonding head 81 has the pressure-bonding surface 96 on the lower surface of the pressure-bonding surface forming portion 81B below the head body 81A, the lengthwise dimension in the left-right direction is the electrode connecting portion of the display panel. The length is the same as the length of the connection terminal portion of the flexible printed circuit board connected via the anisotropic conductive adhesive, and the length is short.

Therefore, when the parallelism of the pressure-bonding surface 96 is visually recognized by the carbon adhesion state of the thermal paper on the surface of the dummy glass plate, the carbon adhesion state is small and it is difficult to see the parallelism of the pressure-bonding head 81. There was a problem of coming.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a crimping device which facilitates the work of adjusting the levelness of the crimping head. .

[0016]

In order to achieve the above object, a crimping device according to the invention of claim 1 applies a stage and a workpiece mounted on the stage by moving up and down on the stage. A pressure head for pressing and heating, a holding unit holding the pressure head, a support member for movably supporting the holding unit in the vertical direction, and a suspending means for suspending the support member on the apparatus frame. Then, the suspension means includes a first suspension column located in one longitudinal direction of the crimping head, and second and third suspension columns located in front of and behind the other longitudinal direction of the crimping head. It is characterized in that it is configured by horizontal adjusting means provided on the first, second, and third suspension columns to adjust the support member in the vertical direction.

With such a configuration, the inclination of the crimping head in the left-right direction can be corrected by moving the support member in the up-down direction by the horizontal adjusting means provided on the first suspension column to adjust the left-right direction of the support member. By correcting the tilt, the entire holding unit is tilted to correct the left-right tilt, and the left-right tilt of the crimp head held by the holding unit is corrected.

The inclination of the crimping head in the front-rear direction is corrected by operating one of the horizontal adjusting means provided on the second and third suspension columns. Or by adjusting both the horizontal adjustment means provided on the second and third suspension columns to correct the tilt of the support member in the front-rear direction, the entire holding unit is tilted to move in the front-rear direction. Of the pressure-bonding head held by the holding unit is corrected.

As described above, the inclination of the crimping head in the left-right direction can be corrected by operating the horizontal adjusting means provided on one suspension column (first suspension column). The inclination of can be corrected by operating the horizontal adjusting means provided on one or both of the other two (second and third suspension columns), and the work for adjusting the levelness of the crimping head is performed. Will be easier.

In order to achieve the above object, a crimping device according to a second aspect of the present invention is the crimping device according to the first aspect, wherein the horizontal adjusting means is provided with first, second and third suspensions. A thread forming portion and an insertion portion are provided in the lower portion of the column, and a horizontal adjustment nut is screwed on the thread forming portion, and the insertion portions of the first, second, and third suspension columns are inserted into the insertion holes of the support member. Mounting bolts inserted into the holding plate member and inserted into the first, second,
The holding plate member is brought into contact with the lower surface of the support member by being screwed into the screw hole of the lower end surface of the third suspension column, and the lower surface of the horizontal adjustment nut is attached to the upper surface of the support member by tightening the mounting bolts. Abutted and configured.

With this structure, the inclination of the crimping head in the left-right direction can be corrected by loosening the mounting bolts in the horizontal adjusting means provided on the first suspension column and setting a predetermined distance between the holding plate member and the supporting member. Gap is created, the horizontal adjustment nut is screw-fed in one of the upper and lower directions, and the supporting member is fulcrumed at a connection point with the second and third suspension columns by moving the horizontal adjustment nut by a predetermined amount. Then, the holding plate member is brought into contact with the lower surface of the supporting member by tightening the mounting bolt to correct the inclination of the supporting member in the left-right direction.

By correcting the inclination of the supporting member in the left-right direction, the entire holding unit is inclined to correct the inclination in the left-right direction, and the inclination of the pressure bonding head held by the holding unit in the left-right direction is corrected.

The inclination of the crimping head in the front-rear direction can be corrected by loosening the mounting bolts at one or both of the horizontal adjusting means provided on the second and third suspension columns, and the holding plate member and the above. A predetermined gap is formed between the support member and the horizontal adjustment nut, and the horizontal adjustment nut is screw-fed in any of the upper and lower directions. Move a predetermined amount up or down with the connecting point as a fulcrum, tighten the mounting bolt to bring the holding plate member into contact with the lower surface of the support member,
The tilt of the support member in the front-rear direction is corrected.

By correcting the tilt of the support member in the front-rear direction, the entire holding unit is tilted to correct the tilt in the front-rear direction, and the tilt in the front-rear direction of the crimping head held by the holding unit is corrected.

As described above, the inclination of the crimping head in the left-right direction can be corrected by operating the horizontal adjusting means provided on one suspension column (first suspension column). The inclination of can be corrected by operating the horizontal adjusting means provided on one or both of the other two (second and third suspension columns), and the work for adjusting the levelness of the crimping head is performed. Will be easier.

In order to achieve the above object, the crimping device according to the invention of claim 3 is the crimping device according to claim 2, wherein a spring receiving member is fixed to the intermediate portion of the first suspension column. A horizontal adjustment nut attachable to a handle was screwed onto the thread forming portion of the first suspension column, and a spring was interposed between the horizontal adjustment nut and the spring receiving member.

With this construction, not only the same operation as the operation of the second aspect of the invention described above can be achieved, but also since the spring pushes the horizontal adjusting nut downward, the loosening of the horizontal adjusting nut is prevented. It

In order to achieve the above object, the crimping device according to the invention of claim 4 is the crimping device according to claim 1 or claim 2 or claim 3, wherein A pressure-bonding surface forming portion is formed in the lower portion along the longitudinal direction of the head body, and a pressure-bonding surface is formed in the middle of the lower surface of the pressure-bonding surface forming portion, and contact surfaces are formed on the left and right sides of the pressure-bonding surface. The pressure-bonding surface and the contact surface are respectively located in the same plane, and a recess is formed between the pressure-bonding surface and the contact surface.

With this configuration, not only can the same effects as those of the above-mentioned invention of claim 1, claim 2 or claim 3 be exerted, but also when the parallelism of the crimping head is to be obtained, a dummy is provided on the stage. A glass plate is placed and fixed, and thermal paper is placed on this dummy glass plate. Then, the pressure-bonding head is lowered together with the holding members, the pressure-bonding surface and the contact surface of the pressure-bonding surface forming portion of the pressure-bonding head are brought into contact with the thermal paper, and the thermal paper is pressure-bonded to the dummy glass plate.
By this pressure bonding, carbon of the thermal paper adheres to the surface of the dummy glass plate.

Then, the pressure bonding head is raised, the dummy glass plate is taken out of the stage, and the carbon adhesion state on the surface of the dummy glass plate is inspected. If the adhesion of carbon is uniform on the pressure contact surface and both contact surfaces by this inspection, the parallelism of the pressure contact head in the left-right direction is good,
If carbon adheres unevenly on either the left or right side and is not uniform, it is determined that the parallelism in the left and right direction is poor. For example, if there is a large amount of carbon on the right side,
This is the case where the pressure bonding head is tilted to the right, and the case where the amount of carbon adhering to the left side is large, the case where the pressure bonding head is tilted to the left.

If the carbon deposition on the dummy glass plate is uneven in the front or rear and is not uniform, the parallelism in the front-rear direction is judged to be poor. For example,
When the amount of carbon adhering to the front side is large, the pressure-bonding head is inclined forward, and when the amount of carbon adhering to the rear side is large, the pressure-bonding head is inclined rearward. .

As described above, by forming a crimping surface in the middle of the lower surface of the crimping surface forming portion of the crimping head and abutting surfaces on the left and right sides sandwiching the crimping surface, the crimping surfaces are parallel to each other. When the degree of adhesion is visually recognized by the carbon adhering condition of the thermal paper on the surface of the dummy glass plate, the carbon adhering condition becomes large and it is easy to see, and the parallelizing operation of the pressure bonding head can be easily performed.

[0033]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a partially sectional front view of the crimping device according to the present invention, FIG. 2 is a partially sectional side view of the crimping device, and FIG. 3 is a sectional view taken along the line D-D of FIG.

The crimping device according to the present invention is provided with a base 1, to which a base plate 4 is fixed in a substantially horizontal state via a plurality of columns 2, and the left and right sides of the base 1 are fixed. Has a plurality of columns 5 standing upright, and these columns 5
Thus, the upper plate member 6 is held in a substantially horizontal state. The base 1, the support column 5 and the upper plate member 6 constitute an apparatus frame.

The index unit 3 constituting the stage S has an inner ring support base 7 fixed to a base plate 4, and the inner ring support base 7 supports an index turntable 9 via bearings 8. An indexing mechanism portion 10 for the index stable 9 is provided on the base 1. The indexing mechanism portion 10 includes a reversible motor 11 and a rotary index 14 in which the input shaft 14A side is connected to the output shaft 12A side of the gear head 12 of the reversible motor 11 via a coupling 13. Index 14
The output shaft 14B of is connected to the central portion of the index table 9.

An opening 15 is provided at the center of the upper plate member 6, and the rod side of the working cylinder 16 faces the opening 15. The working cylinder 16 has a mounting flange on the rod side. The portion 17 is fixed to the upper plate member 6 by a screw member 18. Upper spring locking members 19A and 19B are fixed to the center of the lower surface of the upper plate member 6 on the left and right sides of the opening 15.

A slide guide plate 26 is suspended from the lower surface of the upper plate member 6 via the first, second and third suspension columns 20, 21, 22. That is, as shown in FIG. 3, to the left of the center of the opening 15 (which coincides with the axis of the piston rod 16A of the working cylinder 16),
The first suspension column 20 is arranged on a straight line a in the left-right direction passing through the center P, and the second and third suspension columns 21, 22 are arranged on the right side of the center P and before and after sandwiching the straight line a. Has been placed.

As shown in FIG. 6, the first suspension column 20 has a thread forming portion 20B formed at an intermediate portion of the column body 20A and a thread forming portion 20C formed at a lower portion thereof. The lower half is formed in the insertion portion 20D. Then, screw holes 25 are formed on the upper and lower end surfaces of the pillar body 20A.
A and 25B are formed.

The second and third suspension columns 21 and 22 are shown in FIG.
As shown in FIG. 3, the column main body 23 has a small diameter portion 24 in the lower portion, and the upper half of the small diameter portion 24 is the screw forming portion 24A.
The lower half is processed into the insertion portion 24B, and screw holes 25A and 25B are formed in the upper end surface of the column main body 23 and the lower end surface of the small diameter portion 24, respectively.

Therefore, the first, second, and third suspension columns 20, 21, 22 are fixed to the lower surface of the upper plate member 6 by fixing the screw member 6A provided on the upper plate member 6 to the first and second screw members 6A. 2nd and 3rd
It is performed by screwing into the screw holes 25A of the suspension columns 20, 21, and 22.

The slide guide plate 26 is shown in FIG.
As shown in FIG. 2, it has a rectangular plate 26A in a plan view, mounting holes 27A and 27B are provided in the front and rear corners on the right side of the plate 26A, and the center on the left side of the plate 26A. Mounting holes 27C are provided in the respective portions, and plate body 26A is provided with left and right spring through holes 28A and 28B and left and right mounting holes 29A and 29B.

Then, as shown in FIG. 6, the first suspension column 20 has a thread forming portion 2 at an intermediate portion of the column body 20A.
The spring receiving member 32 is fixed by being screwed to 0B, and the horizontal adjusting nut 30 is screwed to the screw forming portion 20C of the first suspension column 20. This leveling nut 3
No. 0 has a rotary jig mounting hole 30A formed obliquely in the radial direction as shown in FIG.
Is formed. A bar-shaped handle 34 is attached to the rotary jig mounting hole 30A of the horizontal adjustment nut 30. A spring 35 is interposed between the upper surface of the horizontal adjustment nut 30 and the spring receiving member 32. The horizontal adjustment nut 30 includes a holding member 36 and the slide guide plate 2.
The bar-shaped handle 34 may be attached to the lower surface of 6 and the rotary jig mounting hole 30 </ b> A of the horizontal adjustment nut 30. A spring 35 may be interposed between the spring receiving member 32 and the upper surface of the slide guide plate 26.

The horizontal adjusting nut 31 is provided in the screw forming portion 24A of the small diameter portion 24 of the second and third suspension columns 21 and 22.
Are screwed together. These leveling nuts 31
As shown in FIG. 9, a rotary jig mounting hole 31A is formed in the outer peripheral portion of the inner peripheral portion, and a screw portion 31B is formed in the upper half of the inner peripheral portion.

Then, the screw forming portion 2 of the first suspension column 20 is provided in the mounting hole 27C on the left side of the slide guide plate 26.
While inserting the insertion portion 20D which is a part of 0C, the insertion portion 24B of the small diameter portion 24 of the second and third suspension columns 21, 22 is inserted into the front and rear attachment holes 27A, 27B.
The mounting bolt 38 inserted into the washer 37 and the holding plate member 36 is screwed into the screw holes 25B of the first, second, and third suspension columns 20, 21, and 22, and the holding plate member is tightened by tightening these mounting bolts 38. 36 is brought into contact with the lower surface of the slide guide plate 26, and the slide guide plate 26 is suspended by the first, second and third suspension columns 20, 21, 22. In this case, the lower surfaces of the horizontal adjustment nuts 30 and 31 are in contact with the upper surface of the slide guide plate 26.

Therefore, in the first suspension column 20, the horizontal adjustment nut 30, which is screwed into the thread forming portion 20C, the mounting bolt 38, the holding plate member 36, the spring receiving member 32, and the spring 35. The horizontal adjusting means is configured by, and in the second and third suspension columns 21 and 22, the horizontal adjusting nut 31, which is screwed into the screw forming portion 24A thereof, the mounting bolt 38, and the holding plate member 36. The horizontal adjusting means is constituted by.

A bearing housing 39 is fixed to the slide guide plate 26 so as to penetrate through the left and right mounting holes 29A and 29B, and the bearing housing 39 can be moved up and down via a needle bearing 40. Are provided with support shafts 41, upper support plates 42 are fixed to upper ends of the left and right support shafts 41 through upper bearing members 43, and lower support members are provided at lower ends of the left and right support shafts 41. The plate 44 is fixed via the lower bearing member 45. The upper and lower support plates 42, 44 are parallel to each other in a horizontal state.

As shown in FIG. 10, spring through holes 46A and 46B are formed on the left and right sides of the upper support plate 42,
Further, as shown in FIG. 11, lower spring locking members 47A and 47B are fixed to the left and right on the upper surface of the lower support plate 44.
The upper ends of the suspension springs 48 are engaged with the left and right upper spring retaining members 19A and 19B provided on the lower surface of the upper plate member 6. Left and right spring through holes 28A, 28
B and left and right spring through holes 46A, 46 of the upper support plate 42
B, and the lower end of the hanging spring 48 has lower left and right lower spring locking members 47A, 47B of the lower support plate 44.
It is locked to. Further, the lower end surface of the piston rod 16A of the working cylinder 16 is in contact with the upper surface portion of the upper support plate 42.

That is, the upper support plate 42 is attached to the support shaft 4
The holding unit A is connected to the lower support plate 44 via the holding unit A. The holding unit A is hung by a hanging spring 48 and is urged upward. The upper surface is in contact with the lower end surface of the piston rod 16A of the working cylinder 16.

As shown in FIG. 12, a heater block 50 is attached to the lower support plate 44 of the holding unit A through a plurality of hanging bolts 49, and the lower support plate 44 and the heater block 50 are attached. A heat insulating collar 51 is provided between the above and the above so as to cover the hanging bolt 49. As shown in FIGS. 14 to 16, the heater block 50 has a pressure-bonding head mounting portion 52 on the lower side thereof along the left-right direction of the heater block 50. The pressure-bonding head mounting portion 52 has a vertical surface portion 52A. And a horizontal plane portion 52B form a right angle in a side view, and the vertical plane 52A
A plurality of screw holes 53 and left and right positioning pins 63, 64 are provided at predetermined intervals in the left and right direction. Also,
A heater mounting hole 54 is formed in the heater block 50 along the left-right direction. A heater (not shown) is attached to the heater attachment hole 54.

A pressure bonding head 55 is attached to the pressure bonding head mounting portion 52 of the heater block 50. That is, the crimping head 55 has a block-shaped head main body 55A as shown in FIGS. 17 to 19, and the head main body 55A has a lower portion along the left-right direction of the head main body 55A. A crimping surface forming portion 56 having a width narrower than that of the main body 55A is formed, and a crimping surface 57 is formed in the central portion of the lower surface portion of the crimping surface forming portion 56, and contact surfaces are formed on the left and right sides sandwiching the crimping surface 57. 58A and 58B are respectively formed, and the crimping surface 57 and the left and right abutting surfaces 58A and 58B are located in the same plane, respectively, and between the crimping surface 57 and the left abutting surface 58A and crimping. Surface 57 and right contact surface 58
A recess 59, which is an escape portion formed by removing the lower surface portion 56A, is formed between the recess portion 59 and B. Further, the head main body 55A is provided with a plurality of mounting holes 60 that are pulled out to the front and rear surfaces thereof and left and right pin holes 61 and 62, and the right pin hole 62 is a long hole that is long in the left-right direction. .

Then, the crimping head 55 is inserted into the mounting hole 60 with the positioning pins 63 and 64 of the crimping head mounting portion 52 of the heater block 50 being inserted into the pin holes 61 and 62 of the crimping head 55 and being positioned. Mounting bolt 65
Is attached to the crimping head mounting portion 52 by screwing into the screw hole 53.

Next, the crimping operation of the electrode terminal portion of the liquid crystal panel for display and the connection terminal portion of the flexible printed circuit board by the crimping device configured as described above will be described.

First, the parallelism of the pressure bonding head 55 is finely adjusted. In this case, the index unit 3
The dummy glass plate G shown in (1) of FIG. 20 is placed and fixed on the index table 9 of FIG.
Place a thermal paper (not shown) on top.

The actuating cylinder 16 is extended to lower the piston rod 16A to lower the holding unit A against the suspension spring 48, and the heater block 50 and the pressure bonding head 55 are lowered to move the pressure bonding head 55. Of the crimping surface forming portion 56 and the left and right contact surfaces 58A, 58
B is brought into contact with the thermal paper, and the thermal paper is pressure-bonded to the dummy glass plate G. By this pressure bonding, as shown in (1) of FIG. 20, the carbon K (hatched portion) of the thermal paper adheres to the surface portion of the dummy glass plate G.

Then, the operating cylinder 16 is contracted, the elasticity of the suspension spring 48 raises the hot press holding member A, and the crimping head 55 rises.
The pressure bonding surface 57 and the left and right contact surfaces 58A and 58B of the pressure bonding surface forming portion 56 are separated from the thermal paper. Then, the thermal paper and the Gummy glass plate G are removed from the index table 9 and the adhesion state of the carbon K on the surface portion of the dummy glass plate G is inspected.

As a result of this inspection, the adhesion of carbon K is shown in FIG.
0 (1), the crimping surface 57 and the left and right contact surfaces 5
If 8A and 58B are even, the pressure bonding head 5
Although the parallelism in the left-right direction of 5 is good, the adhesion of the carbon K is uneven on either the left or right, and when it is not uniform, the parallelism in the left-right direction is determined to be poor. For example, FIG.
When the attached amount of the carbon K on the right side is large as shown in (2) of 0, the pressure bonding head 55 is inclined to the right, and the carbon K on the left side is shown as shown in (3) of FIG.
The case where the adhesion amount is large is the case where the pressure bonding head 55 is tilted to the left. Further, when the adhesion of the carbon K on the Gummy glass plate G is uneven in the front or rear and is not uniform, it is determined that the parallelism in the front-rear direction is poor. For example, as shown in (4) of FIG. 20, when the adhesion amount of the carbon K on the front side is large, it means that the pressure bonding head 55 is tilted forward, and as shown in (5) of FIG. When the adhered amount of carbon K on the side is large, the pressure bonding head 55 is tilted rearward.

Therefore, it is necessary to correct the inclination of the pressure bonding head 55 by adjusting the horizontal adjusting means. To correct the inclination of the crimping head 55 in the left-right direction, first, the mounting bolt 38 at the lower end of the first suspension column 20 is fixed.
Is loosened to form a predetermined gap between the holding plate member 36 and the slide guide plate 26. Then, the rod-shaped handle 34 fixed to the horizontal adjustment nut 30 screwed to the screw forming portion 20C of the first suspension column 20 is pivoted forward, for example, to screw the horizontal adjustment nut 30 downward. When the horizontal adjustment nut 30 is moved downward by a predetermined amount, the slide guide plate 26 is moved downward by a predetermined amount with the connection point between the second and third suspension columns 21 and 22 as a fulcrum. Then, the mounting bolt 38 is tightened to hold the holding plate member 36.
Is brought into contact with the lower surface of the slide guide plate 26 to correct the inclination of the slide guide plate 26 to the right. In this case, the spring 35 presses the horizontal adjustment nut 30 downward, so that the horizontal adjustment nut 30 is prevented from loosening.

By correcting the inclination of the slide guide plate 26 to the right, the entire holding unit A is tilted to the left to correct the inclination to the right, and the pressing head 55 held by the holding unit A is moved to the right. Correct the inclination of.

Further, by rotating the handle 34 backward, the horizontal adjusting nut 30 is screw-fed upward, and by moving the horizontal adjusting nut 30 upward by a predetermined amount, the slide guide plate 26 is moved. , The second and third suspension columns 21 and 22 are used as fulcrums to move upward by a predetermined amount, and the mounting bolts 38 are tightened to hold the holding plate member 3.
6 is brought into contact with the lower surface of the slide guide plate 26 to correct the inclination of the slide guide plate 26 to the left.

By correcting the inclination of the slide guide plate 26 to the left, the entire holding unit A is tilted to the right to correct the inclination to the left, and the pressing head 55 held by the holding unit A is moved to the left. Correct the inclination of.

In order to correct the inclination of the crimping head 55 in the forward direction, first, the mounting bolt 3 at the lower end of the third suspension column 22 on the rear side of the second and third suspension columns 21, 22 is to be corrected.
8 is loosened to form a predetermined gap between the holding plate member 36 and the slide guide plate 26. Then, the horizontal adjusting nut 31 screwed into the screw forming portion 24A of the third suspension column 22 is screw-fed downward, and the slide guide plate 26 is moved by moving the horizontal adjusting nut 31 downward by a predetermined amount. Is moved downward by a predetermined amount with the connection point between the first suspension column 20 and the second suspension column 21 as a fulcrum, and the mounting bolt 38 is tightened to hold the holding plate member 36 on the lower surface of the slide guide plate 26. The slide guide plates 26 are brought into contact with each other to correct the forward inclination of the slide guide plates 26.

By correcting the inclination of the slide guide plate 26 in the forward direction, the entire holding unit A is tilted backward to correct the inclination in the forward direction, and the pressing head 55 held by the holding unit A is moved in the forward direction. Correct the inclination of.

The inclination of the crimping head 55 in the forward direction is corrected by screwing the horizontal adjusting nut 31 screwed into the screw forming portion 24A of the second suspension column 21 upward to feed the horizontal adjusting nut. When the slide guide plate 26 is moved upward by a predetermined amount, the slide guide plate 26 is moved upward by a predetermined amount with the connection point between the first suspension column 20 and the third suspension column 22 as a fulcrum, and the mounting bolt 38 is moved. Tighten the holding plate member 36
May be brought into contact with the lower surface of the slide guide plate 26 to correct the inclination of the slide guide plate 26 in the forward direction.

In order to correct the inclination of the crimping head 55 in the rearward direction, first loosen the mounting bolt 38 at the lower end of the second suspension column 21 of the second and third suspension columns 2 and 22. A predetermined gap is formed between the holding plate member 36 and the slide guide plate 26. Then, the horizontal adjustment nut 31 screwed into the screw forming portion 24A of the second suspension column 21 is screwed downward, and the slide guide plate 26 is moved by moving the horizontal adjustment nut 31 downward by a predetermined amount. Is moved downward by a predetermined amount with the connection point between the first suspension column 20 and the third suspension column 22 as a fulcrum, and the mounting bolt 38 is tightened to hold the holding plate member 36 on the lower surface of the slide guide plate 26. The slide guide plates 26 are brought into contact with each other to correct the inclination in the rearward direction.

By correcting the tilt of the slide guide plate 26 in the rearward direction, the entire holding unit A is tilted forward to correct the tilt in the rearward direction, and the rearward direction of the crimping head 55 held by the holding unit A is corrected. Correct the inclination of.

To correct the inclination of the crimping head 55 in the rearward direction, the horizontal adjusting nut 31 screwed to the screw portion 24A of the third suspension column 22 is screw-fed upward, and the horizontal adjusting nut 31 is moved. By a predetermined amount of upward movement, the slide guide plate 26 is moved upward by a predetermined amount with the connection point between the first suspension column 22 and the second suspension column 21 as a fulcrum to move the mounting bolt 38. Alternatively, the holding plate member 36 may be brought into contact with the lower surface of the slide guide plate 26 by tightening to correct the rearward inclination of the slide guide plate 26.

After finely adjusting the horizontality of the crimping head 55 as described above, the crimping device is used to connect the connecting terminal portions 73A of the flexible printed board 73 to the display panel via the anisotropic conductive adhesive 70. 72 is connected to the electrode terminal portion 72A. In this case, the connection terminal portion 73A of the flexible printed board 73, the anisotropic conductive adhesive 70, and the electrode terminal portion 72A of the display panel 72 form a work.

In this case, the display panel 72 is placed and fixed on the index table 9 of the index unit 3 with the electrode terminal portion 72A provided on the back side thereof facing upward, and the electrode terminal portion 72A of the display panel 72 is fixed. Then, the connection terminal portion 73A of the flexible printed circuit board 73 is placed on the connection terminal portion 73A via the anisotropic conductive adhesive 70 which is positioned in advance. In this case, the anisotropic conductive adhesive 7
The cover film (not shown) protecting 0 is omitted.

Next, the working cylinder 16 is extended to lower the piston rod 16A to lower the holding unit A against the suspension spring 48, and the heater block 50 and the pressure bonding head 55 to lower. The crimping surface 57 of the crimping surface forming portion 56 of the crimping head 55 is brought into contact with the connecting terminal portion 73A of the flexible printed circuit board 73, and the connecting terminal portion 73A is attached to the display panel 72 via the anisotropic conductive adhesive 70. The electrode terminal portion 72A is pressurized with a predetermined pressure for a predetermined time and is heated.

As a result, the temperature of the anisotropic conductive adhesive 70 rises, so that the anisotropic conductive adhesive at the portions corresponding to the connection terminal portions 73A of the flexible printed circuit board 73 and the electrode terminal portions 72A of the display panel 72. The synthetic resin 70A of the agent 70 is melted, and the molten synthetic resin 70A is melted.
Move to the recesses 59 on the left and right of the crimping surface 57, and the conductive particles (in the figure) in the synthetic resin 70A of the anisotropic conductive adhesive 70 are interposed between the connection terminal portion 73A and the electrode terminal portion 72A. No)
Or the gap between the connecting terminal portion 73A of the flexible printed circuit board 73 and the electrode terminal portion 72A of the display panel 72 becomes narrower, and the conductive particles cause the connecting terminal portion 73A of the flexible printed circuit board 73 and the electrode terminal of the display panel 72. The part 72A is electrically connected.

Thereafter, the working cylinder 16 is contracted to raise the holding unit A by the elasticity of the suspension spring 48 to raise the crimping head 55, and the crimping surface 57 of the crimping surface forming portion 56 thereof is made flexible. By separating from the connection terminal portion 73A of the printed board 73, the temperature of the anisotropic conductive adhesive 70 is lowered and the synthetic resin 70A is cured. Thereby, the flexible printed circuit board 7
The connection terminal portion 73A of No. 3 is fixed to the electrode terminal portion 72A of the display panel 72 via the anisotropic conductive adhesive 70, and the connection terminal portion 73A of the flexible printed board 73 is also attached.
The electrical connection between the electrode terminal portion 72A of the display panel 72 and the electrode terminal portion 72A is maintained.

Next, from the index table 9 of the index unit 3, the display panel 72 in which the connection terminal portion 73A of the flexible printed board 73 is connected to the electrode terminal portion 72A is removed.

According to the embodiment described above, the crimping head 55
The inclination of the crimping head 55 in the left-right direction can be corrected by operating the horizontal adjusting means provided on one suspension column (first suspension column 20).
It suffices to operate the horizontal adjusting means provided on one or both of the other two (second and third suspension columns 21 and 22), and the work of adjusting the levelness of the crimping head 55 is easy. become.

[0074]

As described above, according to the crimping apparatus according to the invention of claim 1, the stage and the work placed on the stage by moving up and down on the stage are pressed,
A pressure-bonding head for heating, a holding unit that holds the pressure-bonding head, a support member that supports the holding unit so as to be movable in the vertical direction, and a suspending unit that suspends the support member on a device frame, A first suspension column located on one side of the crimping head in the longitudinal direction, and a second suspension column located on the front and rear of the other side of the crimping head in the longitudinal direction;
The third suspension column and the horizontal adjustment means provided on the first, second, and third suspension columns to adjust the support member in the up-down direction are adjusted, so that the crimping head tilts in the left-right direction. Is corrected by moving and adjusting the support member in the vertical direction by the horizontal adjusting means provided on the first suspension column, and correcting the inclination of the support member in the left-right direction to tilt the entire holding unit. The tilt in the left-right direction is corrected, and the tilt in the left-right direction of the crimping head held by the holding unit is corrected.

The inclination of the crimping head in the front-rear direction is corrected by operating one of the horizontal adjusting means provided on the second and third suspension columns. Or by adjusting both the horizontal adjustment means provided on the second and third suspension columns to correct the tilt of the support member in the front-rear direction, the entire holding unit is tilted to move in the front-rear direction. Of the pressure-bonding head held by the holding unit is corrected.

As described above, the inclination of the crimping head in the left-right direction can be corrected by operating the horizontal adjusting means provided on one suspension column (first suspension column). The inclination of can be corrected by operating the horizontal adjusting means provided on one or both of the other two (second and third suspension columns), and the work for adjusting the levelness of the crimping head is performed. Will be easier.

According to the crimping device of the second aspect of the present invention, in the crimping device of the first aspect, the horizontal adjusting means is provided with a screw forming portion at the bottom of the first, second and third suspension columns. And an insertion portion are provided, a horizontal adjustment nut is screwed on the screw forming portion, and the insertion portions of the first, second, and third suspension columns are inserted into the insertion holes of the support member to hold the holding plate member. The mounting bolts inserted into the screw holes are screwed into the screw holes of the lower end surfaces of the first, second, and third suspension columns, and the holding plate member is brought into contact with the lower surface of the support member by tightening the mounting bolts. Since the lower surface of the horizontal adjusting nut is in contact with the upper surface of the supporting member, the inclination of the crimping head in the left-right direction can be corrected by loosening the mounting bolt in the horizontal adjusting means provided on the first suspension column. Between the holding plate member and the support member And feed the horizontal adjustment nut in one of the upper and lower directions, and by moving the horizontal adjustment nut by a predetermined amount, the support member is used as a fulcrum at the connection point with the second and third suspension columns. The holding plate member is brought into contact with the lower surface of the support member by moving the mounting bolt up or down by a predetermined amount to correct the inclination of the support member in the left-right direction.

By correcting the inclination of the supporting member in the left-right direction, the entire holding unit is inclined to correct the inclination in the left-right direction, and the inclination of the pressure bonding head held by the holding unit in the left-right direction is corrected.

The inclination of the crimping head in the front-rear direction can be corrected by loosening the mounting bolt at one or both of the horizontal adjusting means provided on the second and third suspension columns, and the holding plate member and the above. A predetermined gap is formed between the support member and the horizontal adjustment nut, and the horizontal adjustment nut is screw-fed in any of the upper and lower directions. Move a predetermined amount up or down with the connecting point as a fulcrum, tighten the mounting bolt to bring the holding plate member into contact with the lower surface of the support member,
The tilt of the support member in the front-rear direction is corrected.

By correcting the tilt of the support member in the front-rear direction, the entire holding unit is tilted to correct the tilt in the front-rear direction, and the tilt in the front-rear direction of the pressure bonding head held by the holding unit is corrected.

As described above, the inclination of the crimping head in the left-right direction can be corrected by operating the horizontal adjusting means provided on one suspension column (first suspension column). The inclination of can be corrected by operating the horizontal adjusting means provided on one or both of the other two (second and third suspension columns), and the work for adjusting the levelness of the crimping head is performed. Will be easier.

According to the crimping device of the third aspect of the present invention, in the crimping device of the second aspect, the spring receiving member is fixed to the intermediate portion of the first suspension column, and the screw of the first suspension column is fixed. A horizontal adjustment nut to which a handle can be attached is screwed to the forming portion, and a spring is interposed between the horizontal adjustment nut and the spring receiving member, so that the same effect as the invention of claim 2 is provided. Not only can the effect be obtained, but the spring presses the horizontal adjustment nut downward, so that the horizontal adjustment nut is prevented from loosening.

According to the crimping device according to the invention of claim 4, in the crimping device according to claim 1, 2 or 3, the crimping head is provided on the lower part of the head body.
A pressure-bonding surface forming portion is formed along the longitudinal direction of the head main body, and a pressure-bonding surface is formed in the middle of the lower surface of the pressure-bonding surface forming portion, and contact surfaces are formed on the left and right sides of the pressure-bonding surface. The pressure-bonding surface and the contact surface are respectively located in the same plane, and a concave portion is formed between the pressure-bonding surface and the contact surface.
Alternatively, not only the same effects as the effects of the invention of claim 2 or claim 3 can be obtained, but when performing parallelism of the pressure bonding head, a dummy glass plate is mounted and fixed on the stage,
Place thermal paper on this dummy glass plate. Then, the pressure-bonding head is lowered together with the holding members, the pressure-bonding surface and the contact surface of the pressure-bonding surface forming portion of the pressure-bonding head are brought into contact with the thermal paper, and the thermal paper is pressure-bonded to the dummy glass plate. By this pressure bonding, carbon of the thermal paper adheres to the surface of the dummy glass plate.

Then, the pressure bonding head is raised, the dummy glass plate is taken out from the stage, and the carbon adhesion state on the surface of the dummy glass plate is inspected. If the adhesion of carbon is uniform on the pressure contact surface and both contact surfaces by this inspection, the parallelism of the pressure contact head in the left-right direction is good,
If carbon adheres unevenly on either the left or right side and is not uniform, it is determined that the parallelism in the left and right direction is poor. For example, if there is a large amount of carbon on the right side,
This is the case where the pressure bonding head is tilted to the right, and the case where the amount of carbon adhering to the left side is large, the case where the pressure bonding head is tilted to the left.

Further, if the adhesion of carbon on the dummy glass plate is uneven in the front or rear and is not uniform, it is judged that the parallelism in the front-rear direction is poor. For example,
When the amount of adhered carbon K on the front side is large, the pressure-bonding head is inclined forward, and the amount of carbon K on the rear side is increased.
The case where the adhered amount is large is the case where the pressure bonding head is tilted rearward.

As described above, by forming a pressure-bonding surface in the middle of the pressure-bonding surface forming portion of the pressure-bonding head and abutting surfaces on the left and right sides of the pressure-bonding surface, the pressure-bonding surfaces are parallel to each other. When the degree of adhesion is visually recognized by the carbon adhering condition of the thermal paper on the surface of the dummy glass plate, the carbon adhering condition becomes large and it is easy to see, and the parallelizing operation of the pressure bonding head can be easily performed.

[Brief description of drawings]

FIG. 1 is a partially sectional front view of a crimping device according to the present invention.

FIG. 2 is a side view showing a partial cross section of the crimping device.

FIG. 3 is a cross-sectional view taken along the line DD of FIG.

FIG. 4 is a partially sectional front view of second and third suspension columns of the crimping device.

FIG. 5 is a plan view of a slide guide plate in the crimping device.

FIG. 6 is a partially sectional front view of a suspending unit including a horizontal adjusting unit in the crimping device.

FIG. 7 is a sectional view of a horizontal adjustment nut of the horizontal adjustment means.

FIG. 8 is a sectional view of another horizontal adjusting means.

FIG. 9 is a cross-sectional view of a horizontal adjustment nut of the horizontal adjustment means.

FIG. 10 is a plan view of an upper holding plate of the holding unit.

FIG. 11 is a plan view showing an assembled state of a lower holding plate of the holding unit, a heater block, and a pressure bonding head.

12 is a view from the X direction in FIG.

13 is a view from the direction Y in FIG.

FIG. 14 is a plan view of a heater block.

FIG. 15 is a front view of a heater block.

16 is a sectional view taken along the line BB of FIG.

FIG. 17 is a front view of the crimping head.

FIG. 18 is a bottom view of the crimp head.

FIG. 19 (1) is a side view of the same pressure bonding head.
(2) is an enlarged view of a C part of (1).

20 (1) to (5) are explanatory views of a carbon adhesion state on a surface portion of a dummy glass plate.

21 (1) and 21 (2) show a state in which a connection terminal portion of a flexible printed circuit board is pressure-bonded to an electrode terminal portion of a display panel using an anisotropic conductive adhesive by using the pressure bonding device of the present invention. FIG.

FIG. 22 is a partially sectional front view of a conventional crimping device.

FIG. 23 is a side view showing a partial cross section of the crimping device.

24 is a cross-sectional view taken along the line EE of FIG.

FIG. 25 is a cross-sectional view of horizontal adjusting means in the crimping device.

[Explanation of symbols]

 20 1st suspension pillar 21 2nd suspension pillar 22 3rd suspension pillar 26 Slide guide plate (support member) 55 Crimp head A Holding unit S stage

Claims (4)

[Claims] 1. A stage, a pressure-bonding head that moves up and down on the stage to pressurize and heat a workpiece placed on the stage, a holding unit that holds the pressure-bonding head, and a vertical direction of the holding unit. And a suspension member for suspending the support member on the apparatus frame, and the suspension unit is located on one side in the longitudinal direction of the crimping head. And second and third suspension columns located in front of and behind the other in the longitudinal direction of the pressure bonding head, and the first, second, and third suspension columns provided with the suspension columns, and the support members are vertically moved and adjusted. And a horizontal adjusting means for adjusting the pressure. 2. The horizontal adjusting means includes first, second and third horizontal adjusting means.
A thread forming portion and an inserting portion are provided in the lower portion of the suspension column, and a horizontal adjusting nut is screwed into the thread forming portion, and the first, second,
Inserting the insertion portion of the third suspension column into the insertion hole of the support member and inserting the mounting bolt inserted into the holding plate member into the screw holes on the lower end surfaces of the first, second, and third suspension columns. 2. The crimping device according to claim 1, wherein the holding plate member is brought into contact with the lower surface of the support member and the lower surface of the horizontal adjustment nut is brought into contact with the upper surface of the support member by tightening the mounting bolts. 3. A spring adjustment member is fixed to an intermediate portion of the first suspension strut, and a horizontal adjustment nut to which a handle can be attached is screwed to the thread forming portion of the first suspension strut. The crimping device according to claim 2, wherein a spring is interposed between the spring and the spring receiving member. 4. A pressure-bonding surface forming part is formed in the lower part of the head main body along the longitudinal direction of the head main body of the pressure-bonding head, and a pressure-bonding surface is formed on the lower surface part of the pressure-bonding surface formation part at an intermediate part thereof. A contact surface is formed on each of the left and right sides of the pressure contact surface, the pressure contact surface and the contact surface are located in the same plane, and a recess is formed between the pressure contact surface and the contact surface. The crimping device according to claim 1, 2 or 3, which is formed and configured.