A coating repair device for injection molded parts

Abstract

The application discloses a coating repairing device for injection molding parts for production, which comprises a fitting shell, sliding rods are uniformly connected to the top of the fitting shell, a coating accommodating shell is fixed on the top of the sliding rods through welding, an up-down sliding pair is arranged on the top of the coating accommodating shell, a front-rear sliding pair is arranged on the top of the up-down sliding pair, a transverse sliding pair is arranged on the top of the front-rear sliding pair, a discharge hole is formed in the top of the fitting shell, suction holes are formed in the two sides of the fitting shell, a gas pump is correspondingly installed in the fitting shell, heat dissipation copper strips are installed on the inner bottom wall of the fitting shell, a small heat exchanger is installed in the fitting shell, the outlet of the gas pump corresponds to the small heat exchanger, the inlet of the gas pump corresponds to the suction hole, flow regulating valves are correspondingly connected to the two ends of the small heat exchanger, and a left connecting pipe is connected to one end of the small heat exchanger.

Description

Technical Field

[0001] This invention belongs to the field of injection molding production technology, and specifically relates to a coating repair device for injection molding parts used in production. Background Technology

[0002] Mobile phones are common household items, but their plastic casings typically consist of four main parts: the front cover, the back support, the bottom front support, and the bottom back cover, along with smaller components such as the battery cover, buttons, windows, clips, and scratch-resistant strips. The structural design of these components must fully consider compatibility and assembly with components such as circuit boards and batteries.

[0003] The coating on injection molded parts gradually wears down during use, requiring a new coating for repair during refurbishment. Since the coating relies on natural or air cooling when applied to the defective area before proceeding to the next process, debris may adhere to the injection molded part during cooling, resulting in poor repair outcomes. Alternatively, prolonged cooling and crust formation can be necessary, compromising practicality. This phenomenon has become a pressing problem for those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a coating repair device for injection molded parts in production, in order to solve the problems mentioned in the background art, in response to existing material collection devices.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a coating repair device for injection molded parts in production, comprising a bonding shell, wherein a sliding rod is uniformly connected to the top of the bonding shell, and a coating receiving shell is fixed to the top of the sliding rod by welding. The top of the coating receiving shell is provided with an upper and lower sliding pair, the top of the upper and lower sliding pair is provided with a front and rear sliding pair, and the top of the front and rear sliding pair is provided with a lateral sliding pair.

[0006] The present invention further describes that the top of the fitting shell is provided with a discharge hole, and the two sides of the fitting shell are provided with corresponding suction holes. An air pump is installed inside the fitting shell. A heat dissipation copper strip is installed on the bottom inner wall of the fitting shell. A small heat exchanger is installed inside the fitting shell. The outlet of the air pump corresponds to the small heat exchanger, and the inlet of the air pump corresponds to the suction hole. Flow regulating valves are connected to both ends of the small heat exchanger. One end of the small heat exchanger is connected to a left connecting pipe, and the other end of the small heat exchanger is connected to a right connecting pipe.

[0007] The present invention further illustrates that the interior of the coated housing is provided with a dosage control system, a large heat exchanger, a compressor, and a reversing valve body. One end of the left connecting pipe extends into the interior of the coated housing, and the dosage control system and the large heat exchanger are respectively provided on the left connecting pipe. One end of the large heat exchanger is connected to a first connecting band, one end of the first connecting band is connected to the compressor, one end of the compressor is connected to a second connecting band, and a reversing valve body is provided between the second connecting band and the first connecting band. One end of the reversing valve body is connected to the right connecting pipe.

[0008] The present invention further describes that the dose control system includes a flexible membrane. The main body of the dose control system is L-shaped, with a receiving portion at the top and a coating inlet hole through the bottom. A coating spray hole is through one side. An elastic deformable part is provided inside the coating inlet hole. One end of the elastic deformable part is connected to a plug. A movable plug is fixed to the top of the plug by welding. The top of the movable plug is in contact with the flexible membrane. A flexible membrane is provided inside the receiving portion. The inner wall of the coating inlet hole contracts inward at the corner, and the contracted part is in position to cooperate with the plug.

[0009] The present invention further illustrates that the upper cavity of the receiving part is connected to an adjusting tube, one end of the adjusting tube is connected to a cylindrical block, the adjusting tube extends into the interior of the fitting shell, the cylindrical block passes through and protrudes from the bottom of the fitting shell, and a spring is provided between the cylindrical block and the inner wall of the adjusting tube.

[0010] The present invention further illustrates that the lateral sliding pair includes a large mounting shell, the bottom of the large mounting shell is provided with front and rear torques, and the front and rear torques are connected by front and rear screw pairs.

[0011] The present invention further illustrates that the front and rear sliding pair includes front and rear guide members, and the bottom of the large mounting shell is correspondingly equipped with the front and rear guide members. The front and rear guide members are slidably connected to the portal bracket. The bottom of the portal bracket is equipped with left and right torques, and the output shaft of the left and right torques is connected to left and right screw pairs.

[0012] The present invention further explains that the upper and lower sliding pairs include upper and lower torques, and the bottom of the left and right screw pairs are correspondingly installed with upper and lower guide members. The upper and lower guide members are slidably connected to the coating housing. The bottom of the left and right screw pairs is installed with upper and lower torques. The output shaft of the upper and lower torques is connected to the upper and lower screw pairs. The upper and lower screw pairs are fixed to the coating housing by welding.

[0013] The method of using this coating repair device is as follows:

[0014] S1. Start the large heat exchanger and bonding shell and other components. When the bonding shell is pressed down, the repair area of ​​the injection molded part is heated, so that the temperature of the adhesive increases, making it easier to press down and deform, and making the repair coating adhere firmly.

[0015] S2. After the bonding shell is pressed down, leave it on the repair coating for a moment and start accelerating the cooling process so that the adhesive is completely cooled before entering the next process.

[0016] S3. Increase the flow rate of the cooling medium when the adhesive is hard (i.e., cold) and decrease the flow rate of the cooling medium when the adhesive is soft (i.e., hot) to make the temperature of the adhesive more uniform during pressing.

[0017] S4. The movement has X, Y and up-and-down sliding pairs, which help to fit the housing and press down after moving to the appropriate position.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention,

[0019] By using a structure that fits the shell, the adhesive can be heated when pressed down, so that the coating reaches a hot-melt state and bonds firmly to the defect.

[0020] Components using liquid cooling can be cooled quickly after repair, preventing debris from adhering to the injection molded part during prolonged cooling.

[0021] By employing a device to adjust the coolant flow rate, the temperature of the cooling medium can be automatically adjusted according to the temperature of the adhesive, preventing cooling from being too fast or too slow. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the installation of the coating housing and the bonding housing of the present invention;

[0025] Figure 3 This is a schematic diagram of the bonding shell repair process of the present invention;

[0026] Figure 4 This is a schematic diagram of the front cross-sectional structure of the fitting shell of the present invention;

[0027] Figure 5 This is a hydraulic schematic diagram of the refrigeration state of the present invention;

[0028] Figure 6This is a hydraulic schematic diagram of the heating state of the present invention;

[0029] Figure 7 This is a front cross-sectional view of the dose control system of the present invention;

[0030] In the diagram: 1. Lateral sliding pair; 11. Large mounting housing; 12. Front and rear torque; 121. Front and rear screw pair; 2. Front and rear sliding pair; 21. Front and rear guides; 22. Portal bracket; 222. Left and right guides; 23. Left and right torque; 231. Left and right screw pairs; 3. Up and down sliding pair; 31. Up and down torque; 311. Up and down screw pairs; 32. Up and down guides; 4. Coating housing; 43. Dosage control system; 431. Flexible membrane; 432. Reception section; 433. Coating nozzle; 434. Coating inlet hole; 435. Blockage 436. Elastic deformation type; 437. Movable plug; 44. Large heat exchanger; 45. Compressor; 46. Reversing valve body; 47. First connecting strip; 48. Second connecting strip; 5. Fitting shell; 51. Suction port; 52. Discharge port; 53. Left connecting pipe; 54. Sliding rod; 55. Small heat exchanger; 551. Flow regulating valve; 552. Air pump; 56. Heat dissipation copper strip; 561. Fitting shell; 562. Regulating pipe; 57. Right connecting pipe; 6. Injection molded part body; 61. Repair coating; 62. Fracture point; 63. Adhesive. Detailed Implementation

[0031] The following detailed, non-limiting description of the technical solution of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-7 The present invention provides a technical solution: a coating repair device for injection molded parts, comprising a bonding shell 5, a sliding rod 54 uniformly connected to the top of the bonding shell 5, a coating receiving shell 4 fixed to the top of the sliding rod 54 by welding, an upper and lower sliding pair 3 provided on the top of the coating receiving shell 4, a front and rear sliding pair 2 provided on the top of the upper and lower sliding pair 3, and a lateral sliding pair 1 provided on the top of the front and rear sliding pair 2. When working, the bonding shell 5 presses on the repair coating 61, compacts the adhesive 63, and makes the repair coating 61 adhere tightly to the fracture 62, and the repair process ends.

[0033] The top of the fitting shell 5 is provided with an exhaust hole 52, and the two sides of the fitting shell 5 are provided with corresponding suction holes 51. An air pump 552 is installed inside the fitting shell 5. A heat dissipation copper strip 56 is installed on the bottom inner wall of the fitting shell 5. A small heat exchanger 55 is installed inside the fitting shell 5. The outlet of the air pump 552 corresponds to the small heat exchanger 55, and the inlet of the air pump 552 corresponds to the suction hole 51. Flow regulating valves 551 are connected to both ends of the small heat exchanger 55. One end of the small heat exchanger 55 is connected to a left connecting pipe 53, and the other end of the small heat exchanger 55 is connected to a right connecting pipe 57. The air pump 552 is used to introduce hot air from the outside into the suction hole 51 so that the small heat exchanger 55 can exchange heat. The heat dissipation copper strip 56 is used to absorb the heat emitted from the small heat exchanger 55, thereby absorbing or dissipating heat, so that the temperature of the fitting shell 5 rises or falls. The flow regulating valve 551 is used to ensure that the flow distribution in the large heat exchanger 44 is uniform.

[0034] The interior of the coated housing 4 is equipped with a dosage control system 43, a large heat exchanger 44, a compressor 45, and a reversing valve body 46. One end of the left connecting pipe 53 extends into the interior of the coated housing 4, and the dosage control system 43 and the large heat exchanger 44 are respectively installed on the left connecting pipe 53. One end of the large heat exchanger 44 is connected to a first connecting band 47, and one end of the first connecting band 47 is connected to the compressor 45. One end of the compressor 45 is connected to a second connecting band 48. A reversing valve body 46 is installed between the second connecting band 48 and the first connecting band 47. One end of the reversing valve body 46 is connected to the right connecting pipe 57.

[0035] When the adhesive is cooled, the large heat exchanger 44 is used to bring in cold or hot air, and the compressor 45 is used to compress the cooling medium from a high temperature and high pressure gaseous state to a low temperature and low pressure liquid state, thereby reducing the temperature and allowing the cooling medium to pass through the entire cycle. When the cycle direction is changed, the flow direction of the reversing valve body 46 is changed.

[0036] The dosage control system 43 includes a flexible membrane 431. The main body of the dosage control system 43 is L-shaped, with a receiving part 432 at the top and a coating inlet hole 434 penetrating through the bottom. A coating spray hole 433 is penetrating through one side. An elastic deformable part 436 is provided inside the coating inlet hole 434. One end of the elastic deformable part 436 is connected to a plug 435. A movable plug 437 is fixed to the top of the plug 435 by welding. The top of the movable plug 437 is in contact with the flexible membrane 431. The flexible membrane 431 is provided inside the receiving part 432. The inner wall of the coating inlet hole 434 contracts inward at the corner, and the contracted part is matched with the plug 435. When the regulating tube 562 moves downward, the distance between the plug 435 and the coating inlet hole 434 increases, the coating inlet hole 434 increases, and the flow rate increases. Conversely, the flow rate decreases.

[0037] Example 1: In order to accommodate the use of adhesives with different cooling levels, an adjusting tube 562 is connected through the upper cavity of the receiving part 432. A cylindrical block 561 is connected through one end of the adjusting tube 562. The adjusting tube 562 extends into the interior of the bonding shell 5. The cylindrical block 561 passes through and protrudes from the bottom of the bonding shell 5. A spring is provided between the cylindrical block 561 and the inner wall of the adjusting tube 562. When the adhesive 63 is hard, the cylindrical block 561 is compressed, and the flexible membrane 431 is squeezed downward, causing the adjusting tube 562 to move downward, which facilitates the adjustment of the cooling medium dosage according to the hardness of the adhesive 63.

[0038] The lateral sliding pair includes a large mounting shell 11. The bottom of the large mounting shell 11 is provided with a front and rear torque 12. The front and rear torque 12 is connected to a front and rear screw pair 121. When the X-direction position of the fitting shell 5 is adjusted, the front and rear torque 12 is activated, and its output shaft drives the front and rear screw pair 121 to move. The front and rear guide members 21 slide relative to the gantry bracket 22.

[0039] The front and rear sliding joint 2 includes front and rear guide members 21. The bottom of the large mounting shell 11 is correspondingly equipped with the front and rear guide members 21. The front and rear guide members 21 are slidably connected to the portal bracket 22. The bottom of the portal bracket 22 is equipped with a left and right torque 23. The output shaft of the left and right torque 23 is connected to the left and right screw joints 231. In use, when adjusting the Y-direction horizontal position of the fitting shell 5, the left and right torque 23 is activated. Its output shaft drives the left and right screw joints 231 to move. The left and right screw joints 231 slide relative to the portal bracket 22, thereby adjusting the Y-direction position of the left and right screw joints 231.

[0040] The upper and lower sliding joint 3 includes an upper and lower torque 31. The bottom of the left and right screw joint 231 is equipped with upper and lower guide members 32. The upper and lower guide members 32 are slidably connected to the coating housing 4. The bottom of the left and right screw joint 231 is equipped with the upper and lower torque 31. The output shaft of the upper and lower torque 31 is connected to the upper and lower screw joint 311. The upper and lower screw joint 311 is fixed to the coating housing 4 by welding. When the bonding housing 5 is working, the upper and lower torque 31 is activated. Its output shaft drives the upper and lower screw joint 311 to move up and down. The coating housing 4 slides relative to the upper and lower guide members 32, thereby adjusting the upper and lower position of the bonding housing 5.

[0041] When using this repair device:

[0042] S1. By setting up components such as a large heat exchanger and a bonding shell, the bonding shell can be heated when it is pressed down, which raises the temperature of the adhesive, making it easier to deform under pressure and making the repair coating adhere firmly.

[0043] S2. By providing components such as a second exchange pipe and a coating housing, the adhesive can be temporarily placed on the repair coating and begin to cool down rapidly after the bonding housing is pressed down, so that the adhesive is completely cooled before entering the next process, preventing displacement caused by collision with other processed parts.

[0044] S3. By setting up a dosage control system, the flow rate of the cooling medium can be increased when the adhesive is hard and cold, and the flow rate of the cooling medium can be reduced when the adhesive is soft and hot, thereby organically regulating the temperature of the bonding shell and making the temperature of the adhesive tend to be uniform during pressing.

[0045] S4. By moving the X, Y and up-and-down sliding pairs, it helps to fit the shell and press down after moving to the appropriate position. The adjustment is convenient and highly automated.

[0046] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coating repair device for injection molded parts in production, comprising a bonding housing (5), characterized in that: The top of the fitting shell (5) is uniformly connected with a sliding rod (54), and the top of the sliding rod (54) is fixed with a coating receiving shell (4) by welding. The top of the coating receiving shell (4) is provided with an upper and lower sliding pair (3), the top of the upper and lower sliding pair (3) is provided with a front and rear sliding pair (2), and the top of the front and rear sliding pair (2) is provided with a lateral sliding pair (1). The top of the fitting housing (5) is provided with an exhaust hole (52), and the two sides of the fitting housing (5) are provided with suction holes (51). An air pump (552) is installed inside the fitting housing (5). A heat dissipation copper strip (56) is installed on the bottom inner wall of the fitting housing (5). A small heat exchanger (55) is installed inside the fitting housing (5). A flow regulating valve (551) is connected to both ends of the small heat exchanger (55). A left connecting pipe (53) is connected to one end of the small heat exchanger (55), and a right connecting pipe (57) is connected to the other end of the small heat exchanger (55). The coating housing (4) is equipped with a dose control system (43). One end of the left connecting pipe (53) extends into the coating housing (4). The left connecting pipe (53) is equipped with a dose control system (43) and a large heat exchanger (44). One end of the large heat exchanger (44) is connected to a first connecting band (47). One end of the first connecting band (47) is connected to a compressor (45). One end of the compressor (45) is connected to a second connecting band (48). A reversing valve body (46) is provided between the second connecting band (48) and the first connecting band (47). One end of the reversing valve body (46) is connected to the right connecting pipe (57). The dose control system (43) includes a flexible membrane (431). The top of the dose control system (43) is provided with a receiving part (432), and a coating inlet hole (434) is passed through its bottom. A coating spray hole (433) is passed through its side. An elastic deformable part (436) is provided inside the coating inlet hole (434). One end of the elastic deformable part (436) is connected to a plug (435). A movable plug (437) is fixed to the top of the plug (435) by welding. The receiving part (432) is provided with a flexible membrane (431). The upper cavity of the receiving part (432) is connected to an adjusting tube (562). One end of the adjusting tube (562) is connected to a cylindrical block (561). The adjusting tube (562) extends into the interior of the fitting shell (5). The cylindrical block (561) passes through and protrudes from the bottom of the fitting shell (5). A spring is provided between the cylindrical block (561) and the inner wall of the adjusting tube (562). When the adhesive (63) is hard, the cylindrical block (561) is compressed, and the flexible membrane (431) is squeezed downward, causing the adjusting tube (562) to move downward. This facilitates the adjustment of the cooling medium dosage according to the hardness of the adhesive (63). When the adjusting tube (562) moves downward, the distance between the block (435) and the coating inlet hole (434) increases, the coating inlet hole (434) increases, and the flow rate increases. Conversely, the flow rate decreases.

2. The coating repair device for injection molded parts according to claim 1, characterized in that: The lateral sliding pair includes a large mounting shell (11), and a front and rear torque (12) is provided at the bottom of the large mounting shell (11). The front and rear torque (12) is connected to a front and rear screw pair (121). When the front and rear torque (12) is activated, its output shaft drives the front and rear screw pair (121) to move.

3. The coating repair device for injection molded parts in production according to claim 2, characterized in that: The front and rear sliding joint (2) includes front and rear guide members (21). The bottom of the large mounting shell (11) is correspondingly equipped with the front and rear guide members (21). The front and rear guide members (21) are slidably connected to the gantry bracket (22). The bottom of the gantry bracket (22) is equipped with a left and right torque (23). The output shaft of the left and right torque (23) is connected to the left and right screw joint (231). When the left and right torque (23) is activated, its output shaft drives the left and right screw joint (231) to move.

4. The coating repair device for injection molded parts in production according to claim 3, characterized in that: The upper and lower sliding pair (3) includes an upper and lower torque (31), and the bottom of the left and right screw pair (231) is correspondingly equipped with an upper and lower guide (32). The bottom of the left and right screw pair (231) is equipped with an upper and lower torque (31), and the output shaft of the upper and lower torque (31) is connected to the upper and lower screw pair (311). When the upper and lower torque (31) is started, its output shaft drives the upper and lower screw pair (311) to move up and down.

5. The coating repair device for injection molded parts in production according to claim 4, characterized in that: The method of using this injection molding part coating repair device is as follows: S1. The starting component heats the repair area of ​​the injection molded part when it is pressed down on the shell, which raises the temperature of the adhesive, making it easier to deform under pressure and making the repair coating adhere firmly. S2. After the bonding shell is pressed down, let it remain on the repair coating for a moment and start to accelerate cooling so that the adhesive is completely cooled before entering the next process. S3. Increase the flow rate of the cooling medium when the adhesive is hard, and decrease the flow rate of the cooling medium when the adhesive is soft, so that the temperature of the adhesive tends to be uniform during pressing. S4, move the front and back sliding joint (2), the lateral sliding joint (1) and the up and down sliding joint (3) to help the fit the shell move to the appropriate position and then press down.

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