Automatic rubber coating equipment for fin products

Abstract

This utility model discloses an automatic coating equipment for heat sink products, including a tape feeding module; a rotating clamping module, including a first clamp and a second clamp arranged opposite each other, a driving component for synchronously rotating the first clamp and the second clamp, and a first cylinder for driving the first clamp to extend and retract. The first clamp includes a rotating cylinder, a telescopic rod that moves axially through the rotating cylinder, and a top holding block fixed to the end of the telescopic rod. The first cylinder drives the telescopic rod to perform axial extension and retraction. The tape feeding module includes a third cylinder and a fourth cylinder, a second support plate that moves up and down and left and right driven by the third cylinder and the fourth cylinder, a clamping component fixed to the second support plate and arranged sequentially along the tape conveying direction, a material head adsorption and pasting component, and a material tail cutting component. This utility model greatly improves the reliability and stability of the automatic coating process for heat sinks and reduces the risk of heat sink deformation.

Description

[Technical Field]

[0001] This utility model belongs to the technical field of coating equipment, and in particular relates to an automatic coating equipment for heat sink products. [Background Technology]

[0002] A heat sink is a device used to dissipate heat from heat-generating electronic components in electrical appliances. They are typically made of aluminum alloy, brass, or bronze, and can be in the form of plates, sheets, or multiple sheets. For example, the CPU (Central Processing Unit) in a computer requires a fairly large heat sink, and power transistors, horizontal output transistors, and power amplifier transistors in a television all use heat sinks. After manufacturing, heat sinks require multiple layers of adhesive tape to be wrapped around their outer surface for protection. Traditionally, this wrapping is done manually, which is inefficient. Existing patent CN211644091U discloses a heat sink wrapping mechanism that uses a rotating clamping mechanism to hold one end of the heat sink and rotate it. The input side of the rotating clamping mechanism includes a tape feeding mechanism and a tape cutting mechanism. The tape feeding mechanism pushes the tape tip above the heat sink, and a pressing cylinder above the heat sink adheres the tape tip to the surface of the heat sink. The automatic wrapping is then completed by the rotation of the heat sink. However, this mechanism has the following drawbacks:

[0003] (1) After the tape cutting mechanism cuts the tape, the tape head may stick to the cutter. Since the tape itself is a flexible material, relying solely on the tape drive device in the middle of the tape conveyor to push the tape forward may not effectively and reliably push the tape head to the designated position. Subsequently, the tape head cannot be pasted onto the heat sink, which poses a risk of tape wrapping failure.

[0004] (2) The heat sink is rotated by only one end of the heat sink held by the rotating clamping mechanism. Since the heat sink itself is a sheet structure, it is easy to deform during the coating process due to the stretching of the tape, which poses a risk of damage to the heat sink. In addition, since the heat sink is in a cantilevered state, the pressing cylinder above the heat sink also poses a risk of deforming the heat sink when pressing the tape head down onto the surface of the heat sink.

[0005] Therefore, it is necessary to provide a new automatic glue-coating equipment for heat sink products to solve the above-mentioned technical problems. [Utility Model Content]

[0006] The main purpose of this invention is to provide an automatic gluing equipment for heat sink products, which greatly improves the reliability and stability of the automatic gluing process of heat sinks and reduces the risk of heat sink deformation.

[0007] This utility model achieves the above objectives through the following technical solution: an automatic glue-coating device for heat sink products, comprising:

[0008] Tape feeding module;

[0009] A rotary clamping module includes a support, a first clamp and a second clamp arranged opposite to each other on the support, a drive assembly for driving the first clamp and the second clamp to rotate synchronously, and a first cylinder for driving the first clamp to extend and retract. The first clamp includes a rotating cylinder, a telescopic rod that moves axially through the rotating cylinder, and a top holding block fixed to the end of the telescopic rod. The first cylinder drives the telescopic rod to extend and retract axially, and the top holding block and the second clamp clamp each other to limit the heat sink.

[0010] A tape feeding module is disposed between a tape feeding module and a rotary clamping module, and includes a third cylinder, a first support plate driven by the third cylinder to move up and down, a fourth cylinder fixed on the first support plate, a second support plate driven by the fourth cylinder to move left and right, a clamping assembly fixed on the second support plate and arranged sequentially along the tape conveying direction, a material head adsorption and pasting assembly, and a material tail cutting assembly.

[0011] Furthermore, both the second chuck and the rotating cylinder are rotatably mounted on the support via bearings; the drive assembly includes a motor fixed on the support, a transmission shaft driven by the motor to rotate, a first synchronous pulley fixed on the outer periphery of the rotating cylinder, a second synchronous pulley fixed on the outer periphery of the second chuck, and a third and fourth synchronous pulleys fixed on the transmission shaft; the first and third synchronous pulleys are connected by a synchronous belt drive to achieve synchronous rotation; the second and fourth synchronous pulleys are connected by a synchronous belt drive to achieve synchronous rotation.

[0012] Furthermore, the second clamp is provided with a limiting slot to facilitate the insertion of the heat sink and to limit the position of the heat sink after insertion.

[0013] Furthermore, the first cylinder is fixed on the support and located at the front shaft end of the telescopic rod, and its piston end is connected to the end of the telescopic rod.

[0014] Furthermore, the telescopic rod and the rotating cylinder are connected together by a pin, which passes radially through the telescopic rod and the rotating cylinder; the outer circumferential surface of the rotating cylinder is provided with a clearance groove for the axial movement of the pin, and the pin extends into the clearance groove.

[0015] Furthermore, the rotary clamping module also includes a straightening module for straightening the front end of the heat sink to a set height position; the straightening module includes a second cylinder fixed on the support, a mounting plate driven by the second cylinder to move back and forth, and a straightening cylinder fixed on the mounting plate. A straightening slot is provided on the outer end face of the straightening cylinder, and the top holding block passes through the inside of the straightening cylinder.

[0016] Furthermore, the material head adsorption and pasting assembly includes a sixth cylinder fixed on the second support plate, a third support plate driven by the sixth cylinder to move up and down, and an adsorption block fixed on the third support plate; the material clamping assembly includes a fifth cylinder fixed on the second support plate and a clamping rod driven by the fifth cylinder to move up and down; the third support plate is provided with a clamping block that cooperates with the clamping rod to clamp the tape.

[0017] Furthermore, the clamping assembly includes a fifth cylinder fixed on the second support plate, a gripper cylinder driven by the fifth cylinder to move up and down, and a pair of clamping rods that are opened or clamped by the gripper cylinder.

[0018] Furthermore, the material tail cutting assembly includes a seventh cylinder fixed on the second support plate and a cutter driven by the seventh cylinder to move up and down.

[0019] Compared with the prior art, the advantages of the automatic gluing equipment for heat sink products of this utility model are: it greatly improves the reliability and stability of the automatic gluing process of heat sinks and reduces the risk of heat sink deformation.

[0020] Specifically:

[0021] (1) The heat sink is clamped and limited by the first clamp and the second clamp set in opposite directions. The synchronous rotation of the first clamp and the second clamp is achieved with the help of the drive component. This ensures that both ends of the heat sink are supported by a certain force when the tape is pasted and when the tape is rotated and wrapped. Compared with the cantilever structure with single-sided limit, this effectively avoids the problem of heat sink deformation caused by tape pasting and rotating and wrapping, thus ensuring the quality of the heat sink product.

[0022] (2) In the tape feeding module, a second support plate with lifting and horizontal transfer motion is configured. The second support plate is equipped with a clamping component, a tape head adsorption and pasting component and a tape tail cutting component. The tape head adsorption and pasting component directly adsorbs and fixes the tape head, and then the tape head is directly pasted onto the heat sink through the horizontal transfer motion, which ensures effective and reliable pasting of the tape head and avoids the problem of tape head pasting failure. Moreover, the heat sink is in a horizontal state in the initial state, which helps to ensure effective and reliable pasting of the tape head.

[0023] (3) A correction module is provided at the first chuck end. The correction slot on the correction cylinder block is used to correct the cantilever end of the heat sink to the set height position. Then, the top holding block extends from inside the correction cylinder block to accurately hold the cantilever end face of the heat sink. This effectively solves the technical problem that the top holding block cannot accurately hold the end face of the heat sink due to the deformation error of the heat sink material. [Attached Image Description]

[0024] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the rotary clamping module and the tape feeding module in the embodiments of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the rotating clamping module in the embodiment of this utility model;

[0027] Figure 4 This is a partial structural diagram of the rotary clamping module in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the tape feeding module in an embodiment of the present invention;

[0029] Figure 6 This is a partial structural diagram of the tape feeding module in an embodiment of this utility model;

[0030] The numbers in the image represent:

[0031] 100-Automatic glue-coating equipment for heat sink products;

[0032] 200-Heat sink;

[0033] 1- Tape feeding module;

[0034] 2-Rotary clamping module, 21-Support, 22-First chuck, 221-Rotating cylinder, 2211-Avoidance strip groove, 222-Telescopic rod, 223-Top holding block, 224-Pin shaft, 23-Second chuck, 231-Limiting slot, 24-Drive assembly, 241-Motor, 242-Transmission shaft, 243-First synchronous pulley, 244-Second synchronous pulley, 245-Third synchronous pulley, 246-Fourth synchronous pulley, 25-First cylinder, 26-Correcting module, 261-Second cylinder, 262-Mounting plate, 263-Correcting cylinder block, 2631-Correcting slot;

[0035] 3- Tape feeding module, 31- Third cylinder, 32- First support plate, 33- Fourth cylinder, 34- Second support plate, 35- Clamping assembly, 351- Fifth cylinder, 352- Clamping rod, 353- Clamping block, 36- Material head adsorption and pasting assembly, 361- Sixth cylinder, 362- Third support plate, 363- Adsorption block, 37- Material tail cutting assembly, 371- Seventh cylinder, 372- Cutter.

Detailed Implementation Methods

[0036] Example 1:

[0037] Please refer to Figures 1-6 This embodiment describes an automatic adhesive wrapping device 100 for heat sink products. It is mainly used to wrap multiple layers of adhesive tape around a designated section of a heat sink 200, thereby achieving automatic adhesive wrapping of the heat sink. This embodiment of the automatic adhesive wrapping device 100 for heat sink products includes a tape feeding module 1, a rotary clamping module 2 for gripping and rotating the heat sink 200, and a tape feeding module 3 for adsorbing and pasting the tape head and cutting the tape tail.

[0038] The tape feeding module 1 adopts a conventional tape feeding mechanism in the existing technology, including a tape feeding reel assembly, a feeding roller assembly, a tension control assembly, and a tape guide roller assembly.

[0039] The rotary clamping module 2 includes a support 21, a first clamp 22 and a second clamp 23 arranged opposite to each other on the support 21, a drive assembly 24 that drives the first clamp 22 and the second clamp 23 to rotate synchronously, and a first cylinder 25 that drives the first clamp 22 to extend and retract. The first clamp 22 includes a rotating cylinder 221, a telescopic rod 222 that moves axially through the rotating cylinder 221, and a top holding block 223 fixed to the end of the telescopic rod 222. The first cylinder 25 drives the telescopic rod 22 to extend and retract axially. The second clamp 23 and the rotating cylinder 221 are both rotatably mounted on the support 21 via bearings.

[0040] The second clamp 23 is provided with a limiting slot 231 for facilitating the insertion of the heat sink 200 and limiting the position of the heat sink after insertion. The limiting slot 231 has an opening formed on the outer peripheral surface of the second clamp 23. This opening allows the heat sink 200 to be inserted on one hand, and allows the extension section of the heat sink 200 to extend beyond the body of the second clamp 23 on the other hand.

[0041] In this embodiment, the heat sink 200 is an L-shaped thin sheet structure; therefore, the cross-sectional shape of the limiting slot 231 is also designed to be L-shaped. In other embodiments, if the heat sink 200 is a horizontal sheet structure, the limiting slot 231 can be designed as a horizontally extending slot structure. The cross-sectional shape of the limiting slot 231 roughly mimics the overall shape of the heat sink.

[0042] The first cylinder 25 is fixed on the support 21 and located at the front shaft end of the telescopic rod 222. Its piston end is connected to the end of the telescopic rod 222, driving the telescopic rod 222 to perform axial telescopic movement relative to the rotating cylinder 221, thereby driving the top holding block 223 to move axially.

[0043] To ensure synchronous rotation between the telescopic rod 222 and the rotating cylinder 221, a pin 224 connects them. The pin 224 passes radially through both the telescopic rod 222 and the rotating cylinder 221. When the rotating cylinder 221 rotates, it rotates along with the telescopic rod 222 via the pin 224. A clearance groove 2211 is provided on the outer circumferential surface of the rotating cylinder 221 for the axial movement of the pin 224, and the pin 224 extends into the clearance groove 2211.

[0044] In this embodiment, when the heat sink 200 is coated with adhesive, the adhesive tape needs to cover a certain distance outside the free end of the heat sink 200, and the adhesive tape needs to be completely attached to the outer peripheral surface of the designated section of the heat sink 200. Therefore, the top holding block 223 can only hold the front side surface of the heat sink 200 and cannot use a U-shaped slot structure to clamp the free end of the heat sink 200. Otherwise, the adhesive tape will wrap the U-shaped slot structure with the front end of the heat sink 200, making it difficult to unload the heat sink after coating.

[0045] In other embodiments, if the free end of the front side of the heat sink 200 does not need to be covered with tape, a U-shaped slot structure can be designed on the top holding block 223 to clamp and limit the free end of the heat sink 200.

[0046] After the heat sink 200 is installed on the second clamp 23, its front end is cantilevered. Due to the thin sheet structure of the heat sink 200, the incoming material may be deformed, causing the top holding block 223 to be unable to accurately hold the front end of the heat sink after it extends. To solve this technical problem, the rotary clamping module 2 in this embodiment also includes a straightening module 26 for straightening the position of the front end of the heat sink. The straightening module 26 includes a second cylinder 261 fixed on the support 21, a mounting plate 262 driven by the second cylinder 261 to move back and forth, and a straightening cylinder block 263 fixed on the mounting plate 262. A straightening slot 2631 is provided on the outer end face of the straightening cylinder block 263, and the top holding block 223 passes through the inside of the straightening cylinder block 263. The shape of the straightening slot 2631 is similar to a Y-shape lying down. The opening size of the free end is large so as to cover the heat sink with a greater degree of deformation. The axial inward slot height is small so as to straighten the front end of the heat sink to the set height range and ensure that the top support block 223 can accurately support it.

[0047] The drive assembly 24 includes a motor 241 fixed on the support 21, a transmission shaft 242 driven by the motor 241 to rotate, a first synchronous pulley 243 fixed on the outer periphery of the rotating cylinder 221, a second synchronous pulley 244 fixed on the outer periphery of the second chuck 22, and a third synchronous pulley 245 and a fourth synchronous pulley 246 fixed on the transmission shaft 242. The first synchronous pulley 243 and the third synchronous pulley 245 are connected by a synchronous belt drive to achieve synchronous rotation; the second synchronous pulley 244 and the fourth synchronous pulley 246 are connected by a synchronous belt drive to achieve synchronous rotation. The transmission shaft 242 is rotatably mounted on the support 21 and extends in the front-rear direction.

[0048] The tape feeding module 3 includes a third cylinder 31 fixed on the support 21, a first support plate 32 driven by the third cylinder 31 to move up and down, a fourth cylinder 33 fixed on the first support plate 32, a second support plate 34 driven by the fourth cylinder 33 to move left and right, a clamping assembly 35 fixed on the second support plate 34 and arranged sequentially along the tape conveying direction, a material head adsorption and pasting assembly 36, and a material tail cutting assembly 37.

[0049] The clamping assembly 35 includes a fifth cylinder 351 fixed on the second support plate 34 and a clamping rod 352 driven by the fifth cylinder 351 to move up and down.

[0050] The material head adsorption and bonding assembly 36 includes a sixth cylinder 361 fixed on the second support plate 34, a third support plate 362 driven by the sixth cylinder 361 to move up and down, and an adsorption block 363 fixed on the third support plate 362.

[0051] To clamp the tape, two clamping rods 352 are typically required to open and close. Therefore, the clamping rods 352 need to be arranged in pairs and equipped with gripper cylinders. To save on the number of cylinders and given the limited space, this embodiment utilizes the up-and-down movement of the sixth cylinder 361 in the material head adsorption and bonding assembly 36 to mount another clamping rod structure on the third support plate 362. Specifically, the third support plate 362 is provided with a clamping block 353 that cooperates with the clamping rod 352 to clamp the tape. The clamping block 353 is provided with a contoured groove 3531 that cooperates with the clamping rod 352. When the clamping rod 352 moves relative to the clamping block 353 into the contoured groove 3531, it can clamp the tape; conversely, it releases the clamp.

[0052] The tail cutting assembly 37 includes a seventh cylinder 371 fixed on the second support plate 34 and a cutter 372 driven by the seventh cylinder 371 to move up and down.

[0053] When the tape feeding module 3 is working, the third cylinder 31 can realize the up and down movement of the clamping component 35, the head adsorption and pasting component 36 and the tail cutting component 37 as a whole, and the fourth cylinder 33 can realize the horizontal transfer movement of the clamping component 35, the head adsorption and pasting component 36 and the tail cutting component 37, so that they can be moved to the set horizontal position according to the process requirements to realize their functions.

[0054] The workflow of an automatic glue-coating device for heat sink products in this embodiment includes the following steps:

[0055] S1. In the initial state, the limiting slot 231 is horizontal, the clamping component 35 is in the tape clamping state, and the material head adsorption and pasting component 36 adsorbs the tape head; the operator or robot puts the heat sink 200 horizontally into the limiting slot 231 in the second clamp 23, and the rear end of the heat sink 200 is clamped and limited by the second clamp 23.

[0056] S2. The second cylinder 261 in the correction module 26 drives the correction cylinder block 263 to extend. Under the correction action of the correction slot 2631, the front end of the heat sink 200 is corrected to the set height position and pushed backward into place.

[0057] S3, the first cylinder 25 drives the telescopic rod 222 to extend, the top holding block 223 pushes back to hold the front end face of the heat sink 200, and the straightening cylinder block 263 retracts;

[0058] S4. The fourth cylinder 33 drives the material head adsorption and pasting component 36 to adsorb the tape material head and move it horizontally above the heat sink 200, and paste the tape material head onto the surface of the heat sink 200 in a horizontal state. The drive component 24 drives the first clamp 22 and the second clamp 23 to start rotating the heat sink 200 to perform automatic tape wrapping operation. When the number of tape wrapping turns reaches the set value, the heat sink 200 stops rotating and stays in a vertical state.

[0059] S5. The adsorption block 363 in the material head adsorption and pasting component 36 descends to a low position and adsorbs the tape; the clamping rod 352 in the clamping component 35 moves upward to cooperate with the clamping block 353 to clamp the tape; the cutter 372 in the material tail cutting component 37 moves downward to cut the tape on the heat sink, and at the same time forms a new tape head on the adsorption block 363.

[0060] S6. The second chuck 23 rotates back to the horizontal position, the top holding block 223 retracts, and the heat sink wrapped with tape is taken out from the second chuck 23 to complete the unloading. The heat sink wrapping is completed.

[0061] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An automatic glue-coating equipment for heat sink products, characterized in that: include: Tape feeding module; A rotary clamping module includes a support, a first clamp and a second clamp arranged opposite to each other on the support, a drive assembly for driving the first clamp and the second clamp to rotate synchronously, and a first cylinder for driving the first clamp to perform a forward and backward telescopic movement; the first clamp includes a rotating cylinder, a telescopic rod that moves axially through the rotating cylinder, and a top holding block fixed to the end of the telescopic rod, and the first cylinder drives the telescopic rod to perform an axial telescopic movement. A tape feeding module is disposed between a tape feeding module and a rotary clamping module, and includes a third cylinder, a first support plate driven by the third cylinder to move up and down, a fourth cylinder fixed on the first support plate, a second support plate driven by the fourth cylinder to move left and right, a clamping assembly fixed on the second support plate and arranged sequentially along the tape conveying direction, a material head adsorption and pasting assembly, and a material tail cutting assembly.

2. The automatic glue-coating equipment for heat sink products as described in claim 1, characterized in that: Both the second chuck and the rotating cylinder are rotatably mounted on the support via bearings; the drive assembly includes a motor fixed on the support, a transmission shaft driven by the motor to rotate, a first synchronous pulley fixed on the outer periphery of the rotating cylinder, a second synchronous pulley fixed on the outer periphery of the second chuck, and a third and fourth synchronous pulley fixed on the transmission shaft; the first and third synchronous pulleys are connected by a synchronous belt drive to achieve synchronous rotation; the second and fourth synchronous pulleys are connected by a synchronous belt drive to achieve synchronous rotation.

3. The automatic glue-coating equipment for heat sink products as described in claim 1, characterized in that: The second clamp is provided with a limiting slot to facilitate the insertion of the heat sink and to limit the position of the heat sink after insertion.

4. The automatic glue-coating equipment for heat sink products as described in claim 1, characterized in that: The first cylinder is fixed on the support and located at the front shaft end of the telescopic rod, and its piston end is connected to the end of the telescopic rod.

5. The automatic glue-coating equipment for heat sink products as described in claim 1, characterized in that: The telescopic rod and the rotating cylinder are connected by a pin, which passes radially through the telescopic rod and the rotating cylinder. The outer circumferential surface of the rotating cylinder is provided with a clearance groove for the axial movement of the pin, and the pin extends into the clearance groove.

6. The automatic glue-coating equipment for heat sink products as described in any one of claims 1 to 5, characterized in that: The rotary clamping module also includes a straightening module for straightening the front end of the heat sink to a set height position; the straightening module includes a second cylinder fixed on the support, a mounting plate driven by the second cylinder to move back and forth, and a straightening cylinder fixed on the mounting plate. A straightening slot is provided on the outer end face of the straightening cylinder, and the top holding block passes through the inside of the straightening cylinder.

7. The automatic glue-coating equipment for heat sink products as described in claim 1, characterized in that: The material adsorption and pasting assembly includes a sixth cylinder fixed on the second support plate, a third support plate driven by the sixth cylinder to move up and down, and an adsorption block fixed on the third support plate; the material clamping assembly includes a fifth cylinder fixed on the second support plate and a clamping rod driven by the fifth cylinder to move up and down; the third support plate is provided with a clamping block that cooperates with the clamping rod to clamp the tape.

8. The automatic glue-coating equipment for heat sink products as described in claim 1, characterized in that: The material head adsorption and bonding assembly includes a sixth cylinder fixed on the second support plate, a third support plate driven by the sixth cylinder to move up and down, and an adsorption block fixed on the third support plate; the material clamping assembly includes a fifth cylinder fixed on the second support plate, a gripper cylinder driven by the fifth cylinder to move up and down, and a pair of clamping rods that are opened or clamped by the gripper cylinder.

9. The automatic glue-coating equipment for heat sink products as described in claim 1, characterized in that: The material tail cutting assembly includes a seventh cylinder fixed on the second support plate and a cutter driven by the seventh cylinder to move up and down.

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