Hot pressing head flatness adjusting mechanism

Abstract

The utility model provides a flatness adjusting mechanism for a hot pressing head, which comprises a base on which a main supporting part and a side supporting part which are arranged in parallel are formed, and the upper parts of the main supporting part and the side supporting part are separated and the bottoms of the side supporting part are connected; the adjusting body is connected to the side supporting part, the upper portion of the adjusting body is provided with a front-back adjusting screw with the tail end acting on the outer wall of the main supporting part, the lower portion of the adjusting body is provided with an extending block with the two sides separated and the middle connected, and the lower portion of the adjusting body is provided with an up-down adjusting screw with the tail end acting on the top face of the extending block; the heat dissipation body is connected to the extension block, and the extension block is provided with a horizontal swing adjusting screw with the tail end acting on the outer wall of the heat dissipation body; and a hot-pressing head. According to the utility model, the angle fine adjustment of the hot-pressing head in three directions can be realized through the front-back adjusting screw, the up-down adjusting screw and the horizontal swing adjusting screw, and the pressure distribution and the pressure balance condition of the hot-pressing head are accurately measured by means of the pressure measuring film until the pressure head plane of the hot-pressing head reaches an ideal horizontal state; therefore, stable operation of equipment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to chip crimping technical field, specifically, it shows a hot die flatness adjusting mechanism. BACKGROUND

[0002] COG bonder (Chip on Glass Bonder) is the accurate binding of IC chip to the LCD glass panel on the automatic equipment, mainly used in the display screen module assembly in electronic product manufacturing. Mainly through the hot pressing process, using ACF glue (anisotropic conductive adhesive) to connect IC chip and LCD glass panel permanently, realizing circuit conduction and signal transmission. Specifically, adopting PLC control system, platform servo transmission positioning, using constant temperature heating mode, cooperating with stainless steel hot die, realizing constant temperature crimping. But the existing automatic bonder still has some deficiencies: the die plane of the hot die cannot be in good contact with the top surface of the chip, that is, the flatness difference of the die plane on the hot die is too large, and the crimping action easily causes the chip to warp too much, and the hot die cannot be accurately flattened, causing bonder work difficulty. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a hot die flatness adjusting mechanism, which is simple and practical in structure and can correct and adjust the flatness of the die plane on the hot die.

[0004] The technical scheme is as follows:

[0005] A hot die flatness adjusting mechanism comprises:

[0006] A base, on which two parallel main support parts, a side support part, which are separated at the top but connected at the bottom, are formed;

[0007] An adjusting body is connected to the side support part, the upper part of the adjusting body is provided with front and rear adjusting screws acting on the outer wall of the main support part, the lower part of the adjusting body is formed with two extension blocks separated on the sides but connected in the middle, and the lower part of the adjusting body is provided with up and down adjusting screws acting on the top surface of the extension block;

[0008] A heat dissipation body is connected to the extension block, and the extension block is provided with horizontal swing adjusting screws acting on the outer wall of the heat dissipation body;

[0009] A hot die is connected to the heat dissipation body, and the hot die has a heating rod.

[0010] Optionally, an optoelectronic sensor is further included, which is arranged towards the hot die to detect whether there is a buffer material under the hot die. In actual work, a layer of buffer material is laid between the hot die and the chip to avoid hard contact between the hot die and the chip, and the optoelectronic sensor is used to detect whether there is a buffer material.

[0011] The photoelectric sensor is arranged on the adjusting body through a mounting plate, and the other end of the mounting plate is provided with a bevel for mounting the photoelectric sensor. The mounting angle of the photoelectric sensor is adjusted through the bevel, so that the irradiation end of the photoelectric sensor can accurately face the lower part of the hot press head.

[0012] Optionally, the lower part of the adjusting body is provided with a blowing head for matching the heat sink to dissipate heat. The heat on the heat sink is blown outwards through the blowing head to quickly take away the heat and reduce the temperature of the heat sink.

[0013] Optionally, a ceramic sheet for heat insulation is arranged between the extension block and the heat sink. The high thermal conductivity of the ceramic sheet quickly and effectively conducts heat, improves heat dissipation efficiency, and avoids excessive concentration of heat on the heat sink.

[0014] Optionally, a plurality of fins are arranged on the periphery of the heat sink. Through the effect of air convection and heat conduction between the fins, the temperature of the heat sink is effectively reduced.

[0015] Optionally, a screw rod is arranged on the upper part of the adjusting body, the screw rod sequentially penetrates through the adjusting body, the side support part, and the end of the screw rod is threadedly connected with the main support part, and the front part of the screw rod is sleeved with a compression spring arranged inside the adjusting body. During the adjustment of the spacing between the side support part and the main support part through the front and rear adjusting screws, the compression spring can have a buffering compression effect to ensure the flexible connection effect between the side support part and the main support part.

[0016] Optionally, a first locking block is arranged on the adjusting body, the front and rear adjusting screws are threadedly connected with the first locking block, and the other end of the front and rear adjusting screws sequentially penetrates through the adjusting body, the side support part, and abuts against the main support part through an adjusting top column. In this way, clockwise or counterclockwise rotation of the front and rear adjusting screws can easily change the force direction of the adjusting top column relative to the main support part, so as to adjust the spacing between the side support part and the main support part.

[0017] Optionally, a second locking block is arranged on the extension block, and the horizontal swing adjusting screw is threadedly connected with the second locking block. In this way, rotation of the horizontal swing adjusting screw can easily change the angle swing of the heat sink in the horizontal direction, so as to adjust the angle of the hot press head in the horizontal direction.

[0018] Optionally, two up and down adjusting screws are arranged on both sides of the extension block. The up and down adjusting screws on both sides can respectively adjust the angle inclination of the heat sink in the vertical direction, so as to adjust the angle of the hot press head in the vertical direction.

[0019] Compared with the prior art, the base's main support part is used for being connected with the driving control part of the bonding equipment, that is, the main support part always keeps a fixed posture, and the side support part of the base can change the relative angle with the main support part under the action of external force; the thermal head is connected to the side support part through the intermediate action of the heat sink and the adjusting body, the front and rear adjusting screws can adjust the angle between the side support part and the main support part to adjust the inclination angle change of the thermal head in the front and rear directions, the up and down adjusting screws can adjust the angle inclination of the heat sink in the vertical direction to adjust the inclination angle change of the thermal head in the left and right directions, and the horizontal swing adjusting screw can adjust the rotation angle between the heat sink and the adjusting body to adjust the rotation angle change of the thermal head in the horizontal direction.

[0020] The front and rear adjusting screws, the up and down adjusting screws and the horizontal swing adjusting screw can realize the angle fine adjustment of the thermal head in three directions, and the pressure distribution and pressure balance of the thermal head can be accurately measured by means of the pressure measuring film (commonly known as pressure sensitive paper), until the thermal head plane reaches the ideal horizontal state, so that the stable operation of the equipment is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic view of the thermal head flatness adjustment mechanism of the embodiment of the utility model;

[0022] Figure 2 It is a half cut schematic view about the upper part of the adjusting body of the embodiment of the utility model;

[0023] Figure 3 It is a related schematic view about the lower part of the thermal head flatness adjustment mechanism of the embodiment of the utility model;

[0024] Relevant marks in the drawing: 1-base, 2-adjusting body, 3-extension block, 4-heat sink, 5-thermal head, 6-ceramic sheet, 7-optoelectronic sensor, 8-blowing head, 9-mounting sheet, 11-main support part, 12-side support part, 21-front and rear adjusting screw, 22-up and down adjusting screw, 23-horizontal swing adjusting screw, 24-first locking block, 25-second locking block, 26-screw rod, 27-compression spring, 28-adjusting top column, 41-fin, 51-heating rod, 91-inclined surface part. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] The embodiment of the utility model provides a hot press head flatness adjusting mechanism for solving the technical problem proposed in the background art. Figure 1 、 Figure 2 and Figure 3 As shown, specifically, it mainly includes base 1, adjusting body 2, heat sink 4 and hot press head 5.

[0027] Base 1 has two parts, main support part 11 and side support part 12, the upper part of main support part 11 is separated from the upper part of side support part 12, but their bottom parts are kept connected, and main support part 11 and side support part 12 are vertically parallel, base 1 needs to be vertically installed and arranged, main support part 11 of base 1 is used to be connected with the driving control part of the bonding equipment, when external force acts on side support part 12, the angle between side support part 12 and main support part 11 will change.

[0028] Adjusting body 2 is connected to side support part 12 in a vertical posture, front and rear adjusting screws 21 capable of acting on the outer wall of main support part inward are arranged on the upper part of adjusting body 2, front and rear adjusting screws 21 are arranged in a posture perpendicular to the upper part of adjusting body 2, because main support part 11 always keeps a fixed posture, the force applied to main support part 11 will act on side support part 12, so that the angle between side support part 12 and main support part 11 changes; extension blocks 3 separated on both sides but connected in the middle are formed on the lower part of adjusting body 2, extension blocks 3 are integrally formed with adjusting body 2, and upper and lower adjusting screws 22 acting on the top surface of extension blocks 3 are arranged on the lower part of adjusting body 2, there are two upper and lower adjusting screws 22, which are respectively located on both sides of extension blocks 3, upper and lower adjusting screws 22 are arranged in a posture perpendicular to the lower part of adjusting body 2, and the upper and lower adjusting screws 22 on both sides can respectively adjust the angle inclination of extension blocks 3 in the vertical direction, that is, the height of one side can be adjusted high and the height of the other side can be adjusted low.

[0029] Heat sink 4 is connected to the bottom end of extension blocks 3, heat sink 4 acts with extension blocks 3, horizontal swing adjusting screws 23 capable of acting on the outer wall of heat sink 4 are arranged on extension blocks 3, there are two horizontal swing adjusting screws 23, which are symmetrically arranged on the left and right, by screwing horizontal swing adjusting screws 23, the angle swing of heat sink 4 in the horizontal direction can be easily changed, that is, heat sink 4 is slightly rotated to one side by being pushed inward, so that the angle adjustment of heat sink 4 in the horizontal direction is realized.

[0030] Hot press head 5 is connected to the bottom end of heat sink 4, and the press head plane of hot press head 5 faces downward, hot press head 5 has heating rod 51.

[0031] In the embodiment, a screw rod 26 is arranged on the upper portion of the adjusting body 2, the screw rod 26 sequentially penetrates through the adjusting body 2 and the side support portion 12, and the end of the screw rod 26 is threadedly connected with the main support portion 11, that is, the end of the screw rod 26 is fixedly connected with the main support portion 11, while the front end portion of the screw rod 26 can relatively slide with the side support portion 12 and the adjusting body 2, the front portion of the screw rod 26 is sleeved with a compression spring 27 arranged inside the adjusting body 2, that is, the compression spring 27 is arranged between the head end of the screw rod 26 and the adjusting body 2, and the compression spring 27 is always in a compressed state. During the adjustment of the spacing between the upper portion of the side support portion 12 and the upper portion of the main support portion 11 by the front and rear adjusting screw 21, the compression spring 27 can play a buffering compression effect, so as to ensure the flexible connection effect between the side support portion 12 and the main support portion 11, thereby adapting to the angle inclination change of the side support portion 12 relative to the main support portion 11.

[0032] In an embodiment, a first locking block 24 is arranged on the adjusting body 2, the front and rear adjusting screw 21 is threadedly connected with the first locking block 24, and the other end of the front and rear adjusting screw 21 sequentially penetrates through the adjusting body 2 and the side support portion 12 and abuts against the main support portion 11 by means of an adjusting top column 28, that is, the front and rear adjusting screw 21 can relatively slide with the side support portion 12 and the adjusting body 2. In this way, the front and rear adjusting screw 21 is screwed clockwise or counterclockwise to relatively move relative to the first locking block 24, so as to easily change the force direction of the adjusting top column 28 relative to the main support portion 11, thereby realizing the adjustment of the spacing between the upper portion of the side support portion 12 and the upper portion of the main support portion 11, so as to change the inclination angle of the side support portion 12 relative to the main support portion 11.

[0033] In an embodiment, a second locking block 25 is arranged on the extension block 3, and the horizontal swing adjusting screw 23 is threadedly connected with the second locking block 25. In this way, the horizontal swing adjusting screw 23 is screwed to relatively move relative to the second locking block 25, so as to easily change the angle swing of the heat radiating body 4 on both sides in the horizontal direction, thereby realizing the angle adjustment of the hot pressing head 5 in the horizontal direction.

[0034] In the embodiment, a plurality of fins 41 can be arranged on both sides of the outer periphery of the heat radiating body 4. In this way, the air convection and heat conduction between the fins can effectively reduce the temperature of the heat radiating body.

[0035] Further, a ceramic sheet 6 for heat insulation can be arranged between the extension block 3 and the heat radiating body 4. In this way, the ceramic sheet has high thermal conductivity, so as to quickly and effectively conduct heat, improve the heat radiating efficiency, and avoid excessive concentration of heat on the heat radiating body.

[0036] Further, a blowing head 8 for matching the heat dissipation body 4 to dissipate heat is arranged at the lower part of the adjusting body 2, and the arrangement direction of the blowing head 8 is towards the heat dissipation body 4. In this way, the heat on the heat dissipation body can be blown outwards by the blowing head to quickly take away the heat and reduce the temperature of the heat dissipation body.

[0037] The temperature on the heat dissipation body is generated by the working of the heating rod on the hot head, and the temperature of the heat dissipation body is reduced by corresponding means to avoid that the heat is too concentrated to affect the reasonable control of the crimping temperature of the hot head.

[0038] In other possible embodiments, a photoelectric sensor 7 is arranged towards the hot head 5 to detect whether there is a buffer material under the hot head. In actual work, a layer of buffer material (commonly made of Teflon material) is laid between the hot head and the chip to avoid that the hot head directly contacts the chip, and the photoelectric sensor can detect whether the buffer material exists.

[0039] The photoelectric sensor 7 is arranged on the adjusting body 2 through a mounting plate 9, and the other end of the mounting plate 9 is provided with a beveled part 91 for mounting the photoelectric sensor 7. The mounting angle of the photoelectric sensor is adjusted through the beveled part, so that the irradiation end of the photoelectric sensor can accurately face the lower part of the hot head.

[0040] When adjusting the flatness of the hot head, the front and rear adjusting screws 21 can adjust the angle between the side supporting part 12 and the main supporting part 11 to adjust the inclination angle of the hot head 5 in the front and rear directions, the up and down adjusting screws 22 can adjust the inclination angle of the heat dissipation body 4 in the vertical direction to adjust the inclination angle of the hot head 5 in the left and right directions, and the horizontal swing adjusting screw 23 can adjust the rotation angle between the heat dissipation body 4 and the adjusting body 2 to adjust the rotation angle of the hot head 5 in the horizontal direction. During the adjustment process, a pressure measuring film (commonly known as pressure sensitive paper) is used to accurately measure the pressure distribution and pressure balance of the hot head until the hot head plane reaches the ideal horizontal state.

[0041] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the creative concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A thermal press head flatness adjustment mechanism, characterized by, It comprises: a base (1) with two parallel main supporting parts (11) separated at the top but connected at the bottom, and a side supporting part (12); an adjusting body (2) connected to the side supporting part (12), the upper part of the adjusting body (2) being provided with front and rear adjusting screws (21) acting on the outer wall of the main supporting part (11), the lower part of the adjusting body (2) being provided with an extension block (3) separated on both sides but connected in the middle, and the lower part of the adjusting body (2) being provided with up and down adjusting screws (22) acting on the top surface of the extension block (3); a heat dissipation body (4) connected to the extension block (3), the extension block (3) being provided with horizontal swing adjusting screws (23) acting on the outer wall of the heat dissipation body (4); a hot pressing head (5) connected to the heat dissipation body (4), the hot pressing head (5) having a heating rod (51).

2. A thermal press head flatness adjustment mechanism according to claim 1, wherein It also comprises a photoelectric sensor (7) arranged towards the direction of the hot pressing head (5) to detect whether there is a cushioning material under the hot pressing head.

3. A thermal press head flatness adjustment mechanism according to claim 2, wherein, The photoelectric sensor (7) is arranged on the adjusting body (2) through a mounting plate (9), and the other end of the mounting plate (9) is provided with a beveled part (91) for mounting the photoelectric sensor (7).

4. The thermal press head flatness adjustment mechanism of claim 1, wherein, The lower part of the adjusting body (2) is provided with a blowing head (8) for heat dissipation of the heat dissipation body (4).

5. The thermal press head flatness adjustment mechanism of claim 1, wherein, A ceramic sheet (6) is arranged between the extension block (3) and the heat dissipation body (4) for heat insulation.

6. The thermal press head flatness adjustment mechanism of claim 1, wherein, A plurality of fins (41) are arranged on the periphery of the heat dissipation body (4).

7. The thermal press head flatness adjustment mechanism of claim 1, wherein, A screw rod (26) is arranged on the upper part of the adjusting body (2), the screw rod (26) penetrating through the adjusting body (2) and the side supporting part (12) in sequence, and the end of the screw rod (26) being threadedly connected with the main supporting part (11), and the front part of the screw rod (26) being sleeved with a compression spring (27) inside the adjusting body (2).

8. The thermal press head flatness adjustment mechanism of claim 1, wherein, A first locking block (24) is arranged on the adjusting body (2), the front and rear adjusting screws (21) being threadedly connected with the first locking block (24), and the other end of the front and rear adjusting screws (21) penetrating through the adjusting body (2) and the side supporting part (12) in sequence and abutting against the main supporting part (11) through an adjusting top column (28).

9. The thermal press head flatness adjustment mechanism of claim 1, wherein, A second locking block (25) is arranged on the extension block (3), the horizontal swing adjusting screws (23) being threadedly connected with the second locking block (25).

10. The thermal press head flatness adjustment mechanism of claim 1, wherein, The up and down adjusting screws (22) are arranged in two, respectively on both sides of the extension block (3).

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