Low-cost coating rubbing production equipment and process thereof

Abstract

The invention relates to the technical field of rubbing, and discloses low-cost coating rubbing production equipment and a process thereof, the low-cost coating rubbing production equipment comprises a workbench, the lower surface of the workbench is fixedly connected with supporting legs, and the upper surface of the workbench is provided with a mold device. According to the mobile phone rear cover cleaning and coating device, the structure is simple, cleaning and coating operation on a to-be-machined mobile phone rear cover is achieved through the air pipe, the feeding pipe, the first bent pipe, the second bent pipe, the first spray head, the second spray head, the rotatable base and other simple parts, and cleaning and coating work is completed by controlling the flowing direction and spraying of compressed air and coating liquid; compared with the prior art, complex and expensive cleaning and coating equipment is not needed, meanwhile, the operation device composed of the torsion spring, the pull rod, the rotating rod, the supporting rod, the suction cup and the like is used for achieving adsorption, carrying and discharging of the mobile phone rear cover, the parts are low in cost and easy to maintain, meanwhile, the production technology is optimized, and the cost of the whole production process is further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of rubbing printing, and specifically relates to a low-cost coating rubbing printing production device and its process. Background Art

[0002] Coating rubbing printing is a technology that coats a specific material on the surface of an object and then obtains relevant information or patterns through rubbing printing. Usually, a coating liquid with certain viscosity, color development property or other special properties is evenly coated on a carrier, such as paper, film, etc. Then, the carrier coated with the coating liquid is closely contacted with the object to be rubbed printed. By means of pressing, friction, etc., the coating liquid fully contacts and adsorbs the information or patterns on the object surface. Finally, the carrier is separated from the object, and the rubbed printed result can be obtained, on which the shape, texture, handwriting and other characteristics of the rubbed printed object are clearly presented. This technology has wide applications in the fields of cultural relic protection, printing, packaging, etc., and can be used for replicating cultural relic patterns, making packaging labels, etc. With the development of society, when producing mobile phone back covers, the coating rubbing printing technology is often used for processing operations.

[0003] The existing coating rubbing printing process is complex, requires multiple sets of production equipment to cooperate with each other, the equipment structure is complex, and the cost is high. When the equipment fails, it is difficult to repair it in time, increasing the production cost of the enterprise. For this reason, we propose a low-cost coating rubbing printing production device and its process. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the existing technology, the present invention provides a low-cost coating rubbing printing production device and its process, which solves the problems that the existing coating rubbing printing process is complex, requires multiple sets of production equipment to cooperate with each other, the equipment structure is complex, and the cost is high. When the equipment fails, it is difficult to repair it in time, increasing the production cost of the enterprise.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the present invention is realized through the following technical solutions: A low-cost coating and stamping production device, including a workbench, the lower surface of the workbench is fixedly connected with supporting feet, the upper surface of the workbench is provided with a mold device, the mold device includes an upper stamping mold and a lower stamping mold, the lower stamping mold is placed on the upper surface of the workbench, the upper stamping mold is placed on the upper surface of the lower stamping mold, the inner wall of the workbench is fixedly connected with a first liquid inlet pipe, the inner wall of the workbench is fixedly connected with a first return pipe, the lower surface of the lower stamping mold is provided with a first liquid inlet hole adapted to the first liquid inlet pipe, the lower surface of the lower stamping mold is provided with a first return hole adapted to the first return pipe, the upper surface of the lower stamping mold is fixedly connected with two second return pipes and two second liquid inlet pipes in sequence, the lower surface of the upper stamping mold is provided with a second return hole adapted to the second return pipe, the lower surface of the upper stamping mold is provided with a second liquid inlet hole adapted to the second liquid inlet pipe, the upper surface of the workbench is provided with a stamping device. The structure of this solution is simple. The cleaning and coating operations for the mobile phone back cover to be processed are realized by means of simple components such as an air pipe, a feeding pipe, a first elbow pipe, a second elbow pipe, a first nozzle, a second nozzle, and a rotatable base. By controlling the flow direction and spraying of compressed air and coating liquid, the cleaning and coating work is completed, without the need for complex and expensive cleaning and coating equipment. At the same time, an operating device composed of a torsion spring, a pull rod, a rotating rod, a supporting rod, and a suction cup is used to realize the adsorption, handling, and discharging of the mobile phone back cover. These components are low-cost and easy to maintain. At the same time, the production process is optimized to further reduce the cost of the entire production process.

[0008] Preferably, a liquid inlet flow channel is arranged inside the lower stamping mold, and the two ends of the liquid inlet flow channel are respectively connected to the first liquid inlet hole and the second liquid inlet pipe. A return flow channel is arranged inside the lower stamping mold, and the two ends of the return flow channel are respectively connected to the first return hole and the second return pipe. A circulation flow channel is arranged inside the upper stamping mold, and the two ends of the circulation flow channel are respectively connected to the second liquid inlet hole and the second return hole. The first liquid inlet pipe is inserted into the first liquid inlet hole, the first return pipe is inserted into the first return hole, and the second liquid inlet pipe is inserted into the second liquid inlet hole, and the second return pipe is inserted into the second return hole, ensuring the stability of the coating liquid circulation path. A stable coating liquid circulation system can continuously provide coating liquid for the mold, ensuring the continuity and uniformity of coating. At the same time, it is also convenient to recycle and reuse the coating liquid, reducing production costs.

[0009] Preferably, a first magnet is installed on the upper surface of the workbench, and the first magnet is magnetically adsorbed to the lower stamping mold. A second magnet is installed on the upper surface of the lower stamping mold, and the second magnet is magnetically adsorbed to the upper stamping mold, facilitating the quick installation and positioning operations of the lower stamping mold and the upper stamping mold.

[0010] Preferably, the rubbing device includes a positioning block fixedly connected to the upper surface of the workbench. A screw rod is rotatably connected to the surface of the positioning block. A carrier is threadedly connected to the screw rod. A cylinder is fixedly connected to the lower surface of the carrier. The driving end of the cylinder is fixedly connected to a bracket. A pressure roller is rotatably connected to the inner wall of the bracket, which facilitates the hot-pressing and rubbing operation on the mobile phone back cover material placed between the upper rubbing mold and the lower rubbing mold.

[0011] Preferably, an installation sleeve is fixedly connected to the upper surface of the workbench. A driving motor is fixedly connected to the inner wall of the installation sleeve. The driving end of the driving motor penetrates through the positioning block and is fixedly connected to the axis of the screw rod. By starting the driving motor, the screw rod is driven by the motor rotation, so that the carrier and the pressure roller can accurately adjust their positions. After the pressure roller moves above the upper rubbing mold, the cylinder is started to control the pressure roller to contact the upper rubbing mold. The pressure and position of the pressure roller can be flexibly adjusted according to the thickness of different molds and the rubbing requirements, ensuring uniform pressure during the rubbing process and improving the rubbing quality.

[0012] Preferably, an auxiliary device is arranged on the upper surface of the workbench. The auxiliary device includes an installation block fixedly connected to the upper surface of the workbench. A feeding pipe is fixedly connected to one side of the installation block. An air pipe is fixedly connected to the side of the installation block close to the feeding pipe. Two symmetrically arranged through holes are opened on the upper surface of the installation block, and the two through holes are respectively communicated with the feeding pipe and the air pipe. A base is rotatably connected to the upper surface of the installation block. A first elbow pipe is fixedly connected to the inner wall of the base. The end of the first elbow pipe far from the base is fixedly connected to a first nozzle. A second elbow pipe is fixedly connected to the upper surface of the base. The end of the second elbow pipe far from the base is fixedly connected to a second nozzle. By using compressed air sprayed out from the air pipe through the second elbow pipe and the second nozzle, the rubbing surface of the mobile phone back cover adsorbed on the suction cup is cleaned, which can quickly remove dust, impurities, etc. on the surface of the mobile phone back cover, ensuring the cleanliness of the rubbing surface, providing a good foundation for subsequent coating and rubbing work, effectively improving the product quality, reducing rubbing defects caused by surface uncleanness, and improving the yield rate of the product. At the same time, the coating liquid is controlled to flow from the feeding pipe into the first elbow pipe and sprayed out from the first nozzle. By repeating the operation, the coating liquid can be evenly sprayed on the rubbing surface of the mobile phone back cover. This coating method is simple to operate and can flexibly adjust the thickness and uniformity of the coating according to actual needs, meeting the coating requirements of different mobile phone back covers. The precise coating effect helps to improve the clarity and integrity of the rubbed pattern, enhancing the aesthetics and market competitiveness of the product.

[0013] Preferably, the first elbow pipe and the second elbow pipe are adapted to the through holes. A stop block is fixedly connected to the upper surface of the installation block. The feeding pipe is communicated with the first elbow pipe through the through hole. The air pipe is communicated with the second elbow pipe through the through hole.

[0014] Preferably, an operating device is provided on the upper surface of the workbench. The operating device includes a guiding frame fixedly connected to the upper surface of the workbench. A carrier block is slidably connected to the guiding frame. A supporting block is fixedly connected to the upper surface of the carrier block. A rotating rod is rotatably connected to the inner wall of the supporting block. A bracket is fixedly connected to the surface of the rotating rod. A suction cup is fixedly connected to one end of the bracket away from the carrier block. One end of the rotating rod is fixedly connected to a pull rod. The pull rod is fixedly connected to a handle at one end away from the carrier block. Rotate the base counterclockwise by 90° to move the first elbow pipe, the first nozzle, the second elbow pipe, and the second nozzle away from the area above the suction cup, avoiding interference with the mobile phone back cover during the discharging process. By rotating the handle to drive the pull rod, the rotating rod, the support rod, and the suction cup to rotate, and using the action of the torsion spring, the suction cup adsorbs and disengages from the printed mobile phone back cover for the discharging operation of the lower printing mold. The discharging method of the solution is simple and flexible in operation, can quickly complete the discharging process, improve production efficiency, and at the same time reduce the risk of damage to the product caused by manual operation.

[0015] Preferably, an auxiliary block is fixedly connected to one end of the rotating rod away from the pull rod. A torsion spring is fixedly connected to one side of the auxiliary block close to the rotating rod, and the torsion spring is sleeved on the rotating rod. The end of the torsion spring away from the auxiliary block is fixedly connected to the supporting block, facilitating the normal use of the device.

[0016] Preferably, it includes the following steps:

[0017] S1. Adsorb the mobile phone back cover on the suction cup, control the compressed air to flow into the second elbow pipe from the air pipe and spray out from the second nozzle, and comprehensively clean the printed surface of the mobile phone back cover by pulling the handle back and forth to drive the relevant components to displace;

[0018] S2. After the cleaning is completed, turn off the compressed air, control the coating liquid to flow into the first elbow pipe from the supply pipe and spray out from the first nozzle, and repeat the operation to evenly spray the coating liquid on the printed surface of the mobile phone back cover. After completion, turn off the supply of the coating liquid;

[0019] S3. Place the lower printing mold on the workbench, use the magnetic adsorption of the first magnet and the lower printing mold to fix the lower printing mold. At the same time, insert the first liquid inlet pipe into the first liquid inlet hole and the first return pipe into the first return hole. Put the mobile phone back cover coated with the coating liquid into the cavity of the lower printing mold, then buckle the upper printing mold on the lower printing mold, adsorb the upper printing mold through the second magnet, and make the second liquid inlet pipe insert into the second liquid inlet hole and the second return pipe insert into the second return hole;

[0020] S4, start the driving motor, drive the screw to rotate by the driving motor, adjust the position of the carrier and the pressure roller until the pressure roller is located above the upper rubbing mold, start the cylinder to make the pressure roller contact with the upper rubbing mold, and then close the cylinder, inject hot water through the first liquid inlet pipe, so that the hot water flows through the first liquid inlet pipe, the first liquid inlet hole, the liquid inlet channel, the second liquid outlet pipe, the second liquid outlet hole, the circulation channel, the second reflux hole, the second reflux pipe, the reflux channel, the first reflux hole and the first reflux pipe in sequence, complete the hot water circulation, heat the upper rubbing mold and the lower rubbing mold, and then heat the back cover of the mobile phone and the coating liquid;

[0021] S5, controlling the carrier to reciprocate, driving the pressing roller to reciprocate on the upper rubbing mold, and completing the rubbing operation;

[0022] S6, after the rubbing is completed, stop supplying hot water, inject coolant through the first liquid inlet pipe, and after the upper rubbing mold and the lower rubbing mold are cooled, inject air through the first liquid inlet pipe to drain the liquid in the internal flow channels of the upper rubbing mold and the lower rubbing mold;

[0023] S7. Control the drive motor to drive the screw to rotate, so that the carrier and the pressure roller are reset, and the base is rotated 90° counterclockwise until the protrusion and the stopper are against each other, so that the relevant nozzles are moved away, and the handle is turned to drive the relevant parts to rotate, so that the suction cup absorbs the printed mobile phone back cover, and then release the handle, and use the torsion spring to drive the mobile phone back cover to separate from the lower printing mold to complete the discharge.

[0024] In summary, the technical effects and advantages of the present invention are as follows:

[0025] 1. In the present invention, compressed air is sprayed from the air pipe through the second bend pipe and the second nozzle to clean the printed surface of the mobile phone back cover adsorbed on the suction cup, which can quickly remove dust, impurities, etc. on the surface of the mobile phone back cover to ensure the cleanliness of the printed surface, provide a good foundation for subsequent coating and printing work, effectively improve product quality, reduce printing defects caused by surface uncleanness, and improve the product yield. At the same time, the coating liquid is controlled to flow from the feed pipe into the first bend pipe and sprayed from the first nozzle. The coating liquid can be evenly sprayed on the printed surface of the mobile phone back cover through repeated operations. The coating method is simple to operate, and the coating thickness and uniformity can be flexibly adjusted according to actual needs to meet the coating requirements of different mobile phone back covers. The precise coating effect helps to improve the clarity and integrity of the printed pattern, and improve the aesthetics and market competitiveness of the product.

[0026] 2. In the present invention, the structure of this solution is simple. The cleaning and coating operations for the mobile phone back cover to be processed are realized by means of simple components such as an air pipe, a feeding pipe, a first elbow pipe, a second elbow pipe, a first nozzle, a second nozzle, and a rotatable base. By controlling the flow direction and spraying of compressed air and coating liquid, the cleaning and coating work is completed. There is no need for complex and expensive cleaning and coating equipment. At the same time, an operating device composed of a torsion spring, a pull rod, a rotating rod, a support rod, and a suction cup is used to realize the adsorption, handling, and discharging of the mobile phone back cover. These components are low-cost and easy to maintain. Meanwhile, the production process is optimized to further reduce the cost of the entire production process.

[0027] 3. In the present invention, the first liquid inlet pipe is inserted into the first liquid inlet hole, the first return pipe is inserted into the first return hole, and the second liquid inlet pipe is inserted into the second liquid inlet hole, and the second return pipe is inserted into the second return hole, ensuring the stability of the coating liquid circulation path. A stable coating liquid circulation system can continuously provide coating liquid for the mold, ensuring the continuity and uniformity of coating. At the same time, it is also convenient to recycle and reuse the coating liquid, reducing production costs.

[0028] 4. In the present invention, when the driving motor is started, the screw is driven by the rotation of the motor, so that the carrier and the pressure roller can accurately adjust their positions. After the pressure roller moves above the upper stamping mold, the air cylinder is started to control the pressure roller to contact the upper stamping mold. The pressure and position of the pressure roller can be flexibly adjusted according to the thickness of different molds and stamping requirements, ensuring uniform pressure during the stamping process and improving the stamping quality.

[0029] 5. In the present invention, hot water is injected through the first liquid inlet pipe to heat the upper stamping mold and the lower stamping mold, and then heat the mobile phone back cover and the coating liquid. Heating can make the coating liquid better penetrate and adhere, improving the stamping effect. After the stamping is completed, the supply of hot water is stopped, and coolant is injected to cool the mold. After cooling, air is injected to empty the liquid in the flow channel. Precise heating and cooling control not only ensure the smooth progress of the stamping process, but also extend the service life of the mold and reduce the equipment maintenance cost.

[0030] 6. In the present invention, the base is rotated counterclockwise by 90°, so that the first elbow pipe, the first nozzle, the second elbow pipe, and the second nozzle are moved away from the area above the suction cup, avoiding interference with the mobile phone back cover during the discharging process. By rotating the handle to drive the pull rod, the rotating rod, the support rod, and the suction cup to rotate, and using the action of the torsion spring, the suction cup realizes the adsorption of the stamped mobile phone back cover and the discharging operation of detaching from the lower stamping mold. The discharging method of this solution is simple and flexible, can quickly complete the discharging process, improve production efficiency, and at the same time reduce the risk of product damage caused by manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of a low-cost coating and stamping production equipment of the present invention;

[0032] Figure 2 It is a schematic upward view structure diagram of a low-cost coating and stamping production device of the present invention;

[0033] Figure 3 It is a schematic side view structure diagram of a low-cost coating and stamping production device of the present invention;

[0034] Figure 4 In a low-cost coating and stamping production device of the present invention Figure 3 Schematic structure diagram of part A;

[0035] Figure 5 In a low-cost coating and stamping production device of the present invention Figure 3 Schematic structure diagram of part B;

[0036] Figure 6 It is a schematic partial explosion structure diagram of a low-cost coating and stamping production device of the present invention;

[0037] Figure 7 In a low-cost coating and stamping production device of the present invention Figure 6 Schematic structure diagram of part C;

[0038] Figure 8 In a low-cost coating and stamping production device of the present invention Figure 6 Schematic diagram of partial structure;

[0039] Figure 9 It is a schematic cross-sectional view structure diagram of the lower stamping die in a low-cost coating and stamping production device of the present invention;

[0040] Figure 10 It is a schematic cross-sectional view structure diagram of the upper stamping die in a low-cost coating and stamping production device of the present invention;

[0041] Figure 11 It is a schematic explosion structure diagram of the operating device in a low-cost coating and stamping production device of the present invention;

[0042] Figure 12 It is a schematic process flow diagram of a low-cost coating and stamping production process of the present invention.

[0043] In the figure: 1, workbench; 2, supporting feet; 3, die device; 31, first liquid inlet pipe; 32, first return pipe; 33, first magnet; 34, lower embossing die; 35, upper embossing die; 36, second return pipe; 37, second magnet; 38, second liquid inlet hole; 39, second return hole; 310, first liquid inlet hole; 311, first return hole; 312, second liquid inlet pipe; 313, liquid inlet flow channel; 314, return flow channel; 315, circulation flow channel; 4, embossing device; 41, carrier; 42, screw; 43, positioning block; 44, drive motor; 45, mounting sleeve; 46, pressure roller; 47, cylinder; 48, bracket; 5, auxiliary device; 51, mounting block; 52, feeding pipe; 53, air pipe; 54, base; 55, convex block; 56, stop block; 57, first elbow pipe; 58, first spray head; 59, second elbow pipe; 510, second spray head; 511, through hole; 6, operating device; 61, guiding frame; 62, bracket; 63, supporting block; 64, auxiliary block; 65, torsion spring; 66, rotating rod; 67, pull rod; 68, carrier block; 69, suction cup; 610, handle. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Refer to Figures 1 - 12A low-cost coating and stamping production device shown in the figure includes a workbench 1. Fixedly connected to the lower surface of the workbench 1 are supporting feet 2. Arranged on the upper surface of the workbench 1 is a die device 3. The die device 3 includes an upper stamping die 35 and a lower stamping die 34. The lower stamping die 34 is placed on the upper surface of the workbench 1, and the upper stamping die 35 is placed on the upper surface of the lower stamping die 34. Fixedly connected to the inner wall of the workbench 1 are a first liquid inlet pipe 31 and a first return pipe 32. The lower surface of the lower stamping die 34 is provided with a first liquid inlet hole 310 adapted to the first liquid inlet pipe 31, and the lower surface of the lower stamping die 34 is provided with a first return hole 311 adapted to the first return pipe 32. Sequentially fixedly connected to the upper surface of the lower stamping die 34 are two second return pipes 36 and two second liquid inlet pipes 312. The lower surface of the upper stamping die 35 is provided with a second return hole 39 adapted to the second return pipe 36, and the lower surface of the upper stamping die 35 is provided with a second liquid inlet hole 38 adapted to the second liquid inlet pipe 312. Arranged on the upper surface of the workbench 1 is a stamping device 4. The structure of this solution is simple. The cleaning and coating operations for the mobile phone back cover to be processed are realized by means of simple components such as an air pipe 53, a feeding pipe 52, a first elbow pipe 57, a second elbow pipe 59, a first nozzle 58, a second nozzle 510, and a rotatable base 54. By controlling the flow direction and spraying of compressed air and coating liquid, the cleaning and coating work is completed without complex and expensive cleaning and coating equipment. At the same time, an operating device 6 composed of a torsion spring 65, a pull rod 67, a rotating rod 66, a supporting rod, and a suction cup 69 is used to realize the adsorption, handling, and discharging of the mobile phone back cover. These components are low-cost and easy to maintain. At the same time, the production process is optimized to further reduce the cost of the entire production process.

[0046] Among them, a liquid inlet flow channel 313 is arranged inside the lower stamping die 34, and the two ends of the liquid inlet flow channel 313 are respectively connected to the first liquid inlet hole 310 and the second liquid inlet pipe 312. A return flow channel 314 is arranged inside the lower stamping die 34, and the two ends of the return flow channel 314 are respectively connected to the first return hole 311 and the second return pipe 36. A circulation flow channel 315 is arranged inside the upper stamping die 35, and the two ends of the circulation flow channel 315 are respectively connected to the second liquid inlet hole 38 and the second return hole 39. The first liquid inlet pipe 31 is inserted into the first liquid inlet hole 310, the first return pipe 32 is inserted into the first return hole 311, the second liquid inlet pipe 312 is inserted into the second liquid inlet hole 38, and the second return pipe 36 is inserted into the second return hole 39, ensuring the stability of the coating liquid circulation path. A stable coating liquid circulation system can continuously provide coating liquid for the die, ensuring the continuity and uniformity of coating. At the same time, it is also convenient to recycle and reuse the coating liquid, reducing production costs.

[0047] Among them, a first magnet 33 is installed on the upper surface of the workbench 1, and the first magnet 33 is magnetically adsorbed to the lower stamping die 34. A second magnet 37 is installed on the upper surface of the lower stamping die 34, and the second magnet 37 is magnetically adsorbed to the upper stamping die 35, which is convenient for quickly completing the installation and positioning operations of the lower stamping die 34 and the upper stamping die 35.

[0048] Among them, the stamping device 4 includes a positioning block 43. The positioning block 43 is fixedly connected to the upper surface of the workbench 1. A screw rod 42 is rotatably connected to the surface of the positioning block 43. A carrier 41 is threadedly connected to the screw rod 42. A cylinder 47 is fixedly connected to the lower surface of the carrier 41. The driving end of the cylinder 47 is fixedly connected to a bracket 48. A pressure roller 46 is rotatably connected to the inner wall of the bracket 48, which is convenient for performing hot stamping operations on the mobile phone back cover material placed between the upper stamping die 35 and the lower stamping die 34.

[0049] Among them, an installation sleeve 45 is fixedly connected to the upper surface of the workbench 1. A driving motor 44 is fixedly connected to the inner wall of the installation sleeve 45. The driving end of the driving motor 44 penetrates through the positioning block 43 and is fixedly connected to the axis of the screw rod 42. When the driving motor 44 is started, the screw rod 42 is driven by the rotation of the motor, so that the carrier 41 and the pressure roller 46 can accurately adjust their positions. After the pressure roller 46 moves above the upper stamping die 35, the cylinder 47 is started to control the pressure roller 46 to contact the upper stamping die 35. The pressure and position of the pressure roller 46 can be flexibly adjusted according to the thickness of different dies and the stamping requirements, ensuring uniform pressure during the stamping process and improving the stamping quality.

[0050] Among them, an auxiliary device 5 is arranged on the upper surface of the workbench 1. The auxiliary device 5 includes a mounting block 51 which is fixedly connected to the upper surface of the workbench 1. One side of the mounting block 51 is fixedly connected with a feeding pipe 52, and one side of the mounting block 51 close to the feeding pipe 52 is fixedly connected with an air pipe 53. Two symmetrically arranged through holes 511 are formed in the upper surface of the mounting block 51, and the two through holes 511 are respectively communicated with the feeding pipe 52 and the air pipe 53. A base 54 is rotatably connected to the upper surface of the mounting block 51. The inner wall of the base 54 is fixedly connected with a first elbow pipe 57. One end of the first elbow pipe 57 away from the base 54 is fixedly connected with a first nozzle 58. The upper surface of the base 54 is fixedly connected with a second elbow pipe 59. One end of the second elbow pipe 59 away from the base 54 is fixedly connected with a second nozzle 510. By spraying compressed air from the air pipe 53 through the second elbow pipe 59 and the second nozzle 510, the stamping surface of the mobile phone back cover adsorbed on the suction cup 69 can be cleaned, and dust, impurities, etc. on the surface of the mobile phone back cover can be quickly removed, ensuring the cleanliness of the stamping surface, providing a good foundation for subsequent coating and stamping work, effectively improving the product quality, reducing stamping defects caused by surface uncleanness, and improving the yield rate of the product. At the same time, the coating liquid is controlled to flow from the feeding pipe 52 into the first elbow pipe 57 and spray out from the first nozzle 58. By repeating the operation, the coating liquid can be evenly sprayed on the stamping surface of the mobile phone back cover. This coating method is easy to operate and can flexibly adjust the coating thickness and uniformity according to actual needs to meet the coating requirements of different mobile phone back covers. The precise coating effect helps to improve the clarity and integrity of the stamping pattern, and enhances the aesthetics and market competitiveness of the product.

[0051] Among them, the first elbow pipe 57 and the second elbow pipe 59 are adapted to the through holes 511. A stop block 56 is fixedly connected to the upper surface of the mounting block 51. The feeding pipe 52 is communicated with the first elbow pipe 57 through the through hole 511, and the air pipe 53 is communicated with the second elbow pipe 59 through the through hole 511.

[0052] Among them, an operating device 6 is arranged on the upper surface of the workbench 1. The operating device 6 includes a guiding frame 61 which is fixedly connected to the upper surface of the workbench 1. A carrier block 68 is slidably connected to the guiding frame 61. A supporting block 63 is fixedly connected to the upper surface of the carrier block 68. A rotating rod 66 is rotatably connected to the inner wall of the supporting block 63. A bracket 62 is fixedly connected to the surface of the rotating rod 66. A suction cup 69 is fixedly connected to one end of the bracket 62 away from the carrier block 68. One end of the rotating rod 66 is fixedly connected to a pull rod 67. One end of the pull rod 67 away from the carrier block 68 is fixedly connected to a handle 610. Rotate the base 54 counterclockwise by 90°, so that the first elbow pipe 57, the first nozzle 58, the second elbow pipe 59 and the second nozzle 510 are moved away from the area above the suction cup 69, avoiding interference with the mobile phone back cover during the discharging process. By rotating the handle 610 to drive the pull rod 67, the rotating rod 66, the support rod and the suction cup 69 to rotate, and using the action of the torsion spring 65, the suction and detachment of the suction cup 69 from the printed mobile phone back cover for the discharging operation of the lower printing die 34 are realized. The discharging method of the scheme is simple and flexible in operation, can quickly complete the discharging process, improve the production efficiency, and at the same time reduce the risk of damage to the product caused by manual operation.

[0053] Among them, an auxiliary block 64 is fixedly connected to one end of the rotating rod 66 away from the pull rod 67. A torsion spring 65 is fixedly connected to one side of the auxiliary block 64 close to the rotating rod 66, and the torsion spring 65 is sleeved on the rotating rod 66. One end of the torsion spring 65 away from the auxiliary block 64 is fixedly connected to the supporting block 63, which is convenient for the normal use of the equipment.

[0054] Among them, it includes the following steps:

[0055] S1. Adsorb the mobile phone back cover on the suction cup 69, control the compressed air to flow into the second elbow pipe 59 from the air pipe 53 and spray out from the second nozzle 510, and comprehensively clean the printing surface of the mobile phone back cover by pulling the handle 610 back and forth to drive the relevant components to displace;

[0056] S2. After the cleaning is completed, close the compressed air, control the coating liquid to flow into the first elbow pipe 57 from the supply pipe 52 and spray out from the first nozzle 58, and repeat the operation to evenly spray the coating liquid on the printing surface of the mobile phone back cover, and then close the supply of the coating liquid after completion;

[0057] S3. Place the lower printing die 34 on the workbench 1, use the magnetic adsorption of the first magnet 33 and the lower printing die 34 to fix the lower printing die 34. At the same time, insert the first liquid inlet pipe 31 into the first liquid inlet hole 310 and the first return pipe 32 into the first return hole 311. Put the mobile phone back cover coated with the coating liquid into the cavity of the lower printing die 34, then buckle the upper printing die 35 on the lower printing die 34, adsorb the upper printing die 35 through the second magnet 37, and make the second liquid inlet pipe 312 insert into the second liquid inlet hole 38 and the second return pipe 36 insert into the second return hole 39;

[0058] S4. Start the drive motor 44. Drive the screw rod 42 to rotate through the rotation of the drive motor 44, and adjust the positions of the carrier 41 and the pressure roller 46 until the pressure roller 46 is located above the upper stamping die 35. Start the air cylinder 47. After the pressure roller 46 contacts the upper stamping die 35, close the air cylinder 47. Inject hot water through the first liquid inlet pipe 31, so that the hot water flows through the first liquid inlet pipe 31, the first liquid inlet hole 310, the liquid inlet flow channel 313, the second liquid outlet pipe, the second liquid outlet hole, the circulation flow channel 315, the second return hole 39, the second return pipe 36, the return flow channel 314, the first return hole 311 and the first return pipe 32 in sequence, complete the circular flow of the hot water, heat the upper stamping die 35 and the lower stamping die 34, and then heat the mobile phone back cover and the coating liquid;

[0059] S5. Control the reciprocating movement of the carrier 41, drive the pressure roller 46 to reciprocate on the upper stamping die 35, and complete the stamping operation;

[0060] S6. After the stamping is completed, stop supplying hot water. Inject coolant through the first liquid inlet pipe 31. After the upper stamping die 35 and the lower stamping die 34 are cooled, inject air through the first liquid inlet pipe 31 to drain the liquid in the internal flow channels of the upper stamping die 35 and the lower stamping die 34;

[0061] S7. Control the drive motor 44 to drive the screw rod 42 to rotate, reset the carrier 41 and the pressure roller 46, rotate the base 54 counterclockwise by 90° until the convex block 55 abuts against the stop block 56, move the relevant nozzles away, rotate the handle 610 to drive the relevant components to rotate, make the suction cup 69 adsorb the stamped mobile phone back cover, release the handle 610, and use the torsion spring 65 to drive the mobile phone back cover to separate from the lower stamping die 34 to complete the discharging.

[0062] The working principle of the present invention: When performing the coating and stamping of the mobile phone back cover, adsorb the mobile phone back cover on the suction cup 69, control the compressed air to flow from the air pipe 53 into the second elbow 59 and spray out from the second nozzle 510. Since the stamping surface of the mobile phone back cover is located below the second nozzle 510, the compressed air performs a cleaning operation on the mobile phone back cover. The operator drives the pull rod 67, the carrier block 68, the support rod, the suction cup 69 and the mobile phone back cover to displace by pulling the handle 610 back and forth, so as to perform a comprehensive cleaning on the mobile phone back cover. After the cleaning operation is completed, close the entry of the compressed air, and control the coating liquid to flow from the supply pipe 52 into the first elbow 57 and spray out from the first nozzle 58. The user repeats the above operation, and can evenly spray the coating liquid on the stamping surface of the mobile phone back cover. After the operation is completed, the supply of the coating liquid can be closed.

[0063] Subsequently, the lower stamping die 34 is placed on the workbench 1, and the first magnet 33 is magnetically adsorbed to the lower stamping die 34 to ensure that the lower stamping die 34 does not move randomly during the working process. At the same time, the first liquid inlet pipe 31 is inserted into the first liquid inlet hole 310, and the first return pipe 32 is inserted into the first return hole 311, ensuring the stability of the coating liquid circulation path. Subsequently, the upper stamping die 35 is pulled upward, and the mobile phone back cover coated with the coating liquid can be placed into the cavity of the lower stamping die 34. Then, the upper stamping die 35 is buckled on the lower stamping die 34. At this time, the second magnet 37 adsorbs the upper stamping die 35. At the same time, the second liquid inlet pipe 312 is inserted into the second liquid inlet hole 38, and the second return pipe 36 is inserted into the second return hole 39.

[0064] Subsequently, the driving motor 44 is started. The driving motor 44 rotates to drive the screw 42 to rotate. Under the rotation of the screw 42, the carrier 41 moves horizontally along the screw 42, thereby adjusting the positions of the carrier 41 and the pressure roller 46. After the pressure roller 46 moves above the upper stamping die 35, the air cylinder 47 is started. The driving end of the air cylinder 47 pushes the bracket 48 downward, thereby driving the bracket 48 and the pressure roller 46 to move downward and contact the upper stamping die 35. Subsequently, the air cylinder 47 is closed.

[0065] Hot water is injected through the first liquid inlet pipe 31. The hot water enters the liquid inlet flow channel 313 through the first liquid inlet pipe 31 and the first liquid inlet hole 310, and then flows into the circulation flow channel 315 from the second liquid outlet pipe and the second liquid outlet hole, and flows into the return flow channel 314 from the second return hole 39 and the second return pipe 36. Finally, it is discharged from the first return hole 311 and the first return pipe 32, completing the circulating flow of the hot water, realizing the heating operation of the upper stamping die 35 and the lower stamping die 34, and further heating the mobile phone back cover and the coating liquid. At the same time, the carrier 41 is controlled to reciprocate, driving the pressure roller 46 to reciprocate on the upper stamping die 35, and finally completing the stamping operation.

[0066] Subsequently, the supply of hot water is stopped, and coolant is injected through the first liquid inlet pipe 31. After the upper stamping die 35 and the lower stamping die 34 are cooled, air is injected through the first liquid inlet pipe 31 to drain the liquid in the internal flow channels of the upper stamping die 35 and the lower stamping die 34. Subsequently, the driving motor 44 can be controlled to drive the screw 42 to rotate, driving the carrier 41 and the pressure roller 46 to return to their original positions. After the pressure roller 46 moves away from above the upper stamping die 35, the upper stamping die 35 can be removed.

[0067] At the same time, rotate the base 54 counterclockwise by 90°. Wait until the convex block 55 abuts against the stop block 56, and then release the base 54. At this time, the base 54 drives the first elbow 57, the first nozzle 58, the second elbow 59 and the second nozzle 510 to move away from the area above the suction cup 69. Subsequently, rotate the handle 610 to drive the pull rod 67, the rotating rod 66, the support rod and the suction cup 69 to rotate. The torsion spring 65 is deformed under force. After the pull rod 67 rotates 180 degrees, the rotating rod 66 and the support rod drive the suction cup 69 to move above the printed mobile phone back cover. At the same time, the suction cup 69 adsorbs the mobile phone back cover. Then slowly release the handle 610, and the torsion spring 65 drives the rotating rod 66, the support rod, the suction cup 69 and the mobile phone back cover to rotate away from the lower stamping die 34. Subsequently, the printed mobile phone back cover is separated from the lower stamping die 34 to complete the discharging. Repeat the above operations to stably perform the subsequent stamping operation of the mobile phone back cover.

[0068] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-cost coating and rubbing production device, comprising a workbench (1), characterized in that: The lower surface of the workbench (1) is fixedly connected with supporting feet (2). The upper surface of the workbench (1) is provided with a die device (3). The die device (3) includes an upper embossing die (35) and a lower embossing die (34). The lower embossing die (34) is placed on the upper surface of the workbench (1), and the upper embossing die (35) is placed on the upper surface of the lower embossing die (34). The inner wall of the workbench (1) is fixedly connected with a first liquid inlet pipe (31), and the inner wall of the workbench (1) is fixedly connected with a first return pipe (32). The lower surface of the lower embossing die (34) is provided with a first liquid inlet hole (310) adapted to the first liquid inlet pipe (31), and the lower surface of the lower embossing die (34) is provided with a first return hole (311) adapted to the first return pipe (32). The upper surface of the lower embossing die (34) is fixedly connected with two second return pipes (36) and two second liquid inlet pipes (312) in sequence. The lower surface of the upper embossing die (35) is provided with a second return hole (39) adapted to the second return pipe (36), and the lower surface of the upper embossing die (35) is provided with a second liquid inlet hole (38) adapted to the second liquid inlet pipe (312). The upper surface of the workbench (1) is provided with an embossing device (4).

2. The low-cost coating and rubbing production equipment according to claim 1, characterized in that: A liquid inlet flow channel (313) is arranged inside the lower embossing die (34), and the two ends of the liquid inlet flow channel (313) are respectively connected with the first liquid inlet hole (310) and the second liquid inlet pipe (312). A return flow channel (314) is arranged inside the lower embossing die (34), and the two ends of the return flow channel (314) are respectively connected with the first return hole (311) and the second return pipe (36). A circulation flow channel (315) is arranged inside the upper embossing die (35), and the two ends of the circulation flow channel (315) are respectively connected with the second liquid inlet hole (38) and the second return hole (39).

3. A low-cost coating and rubbing production device according to claim 1, characterized in that: A first magnet (33) is installed on the upper surface of the workbench (1), and the first magnet (33) is magnetically adsorbed to the lower embossing die (34). A second magnet (37) is installed on the upper surface of the lower embossing die (34), and the second magnet (37) is magnetically adsorbed to the upper embossing die (35).

4. A low-cost coating and rubbing production device according to claim 1, characterized in that: The embossing device (4) includes a positioning block (43). The positioning block (43) is fixedly connected with the upper surface of the workbench (1). A screw rod (42) is rotatably connected to the surface of the positioning block (43). A carrier (41) is threadedly connected to the screw rod (42). A cylinder (47) is fixedly connected to the lower surface of the carrier (41). A driving end of the cylinder (47) is fixedly connected with a bracket (48). A pressure roller (46) is rotatably connected to the inner wall of the bracket (48).

5. The low-cost coating and rubbing production equipment according to claim 4, characterized in that: An installation sleeve (45) is fixedly connected with the upper surface of the workbench (1). A driving motor (44) is fixedly connected with the inner wall of the installation sleeve (45). A driving end of the driving motor (44) penetrates through the positioning block (43) and is fixedly connected with the axis of the screw rod (42).

6. A low-cost coating and rubbing production device according to claim 1, characterized in that: An auxiliary device (5) is provided on the upper surface of the workbench (1). The auxiliary device (5) includes a mounting block (51), the mounting block (51) is fixedly connected to the upper surface of the workbench (1), a feeding pipe (52) is fixedly connected to one side of the mounting block (51), an air pipe (53) is fixedly connected to the side of the mounting block (51) close to the feeding pipe (52), two symmetrically arranged through holes (511) are formed on the upper surface of the mounting block (51), and the two through holes (511) are respectively communicated with the feeding pipe (52) and the air pipe (53). A base (54) is rotatably connected to the upper surface of the mounting block (51). A first elbow pipe (57) is fixedly connected to the inner wall of the base (54). One end of the first elbow pipe (57) away from the base (54) is fixedly connected to a first nozzle (58). A second elbow pipe (59) is fixedly connected to the upper surface of the base (54). One end of the second elbow pipe (59) away from the base (54) is fixedly connected to a second nozzle (510).

7. A low-cost coating and rubbing production device according to claim 6, characterized in that: The first elbow pipe (57) and the second elbow pipe (59) are adapted to the through holes (511), and a stop block (56) is fixedly connected to the upper surface of the mounting block (51).

8. A low-cost coating and rubbing production device according to claim 1, characterized in that: An operating device (6) is provided on the upper surface of the workbench (1). The operating device (6) includes a guiding frame (61), the guiding frame (61) is fixedly connected to the upper surface of the workbench (1), a carrier block (68) is slidably connected to the guiding frame (61), a supporting block (63) is fixedly connected to the upper surface of the carrier block (68), a rotating rod (66) is rotatably connected to the inner wall of the supporting block (63), a bracket (62) is fixedly connected to the surface of the rotating rod (66), a suction cup (69) is fixedly connected to one end of the bracket (62) away from the carrier block (68), a pull rod (67) is fixedly connected to one end of the rotating rod (66), and a handle (610) is fixedly connected to the end of the pull rod (67) away from the carrier block (68).

9. The low-cost coating and rubbing production equipment according to claim 8, characterized in that: An auxiliary block (64) is fixedly connected to the end of the rotating rod (66) away from the pull rod (67). A torsion spring (65) is fixedly connected to the side of the auxiliary block (64) close to the rotating rod (66), and the torsion spring (65) is sleeved on the rotating rod (66). One end of the torsion spring (65) away from the auxiliary block (64) is fixedly connected to the supporting block (63).

10. A low-cost coating and rubbing production process, characterized in that: It includes the following steps: S1. Adsorb the mobile phone back cover on the suction cup (69), control the compressed air to flow from the air pipe (53) into the second elbow pipe (59) and spray out from the second nozzle (510), and drive the relevant components to displace by pulling the handle (610) back and forth to comprehensively clean the stamping surface of the mobile phone back cover; S2. After the cleaning is completed, turn off the compressed air, control the coating liquid to flow from the feeding pipe (52) into the first elbow pipe (57) and spray out from the first nozzle (58), repeat the operation to evenly spray the coating liquid on the stamping surface of the mobile phone back cover, and turn off the coating liquid supply after completion; S3, placing the lower rubbing mold (34) on the workbench (1), fixing the lower rubbing mold (34) by magnetic adsorption of the first magnet (33) and the lower rubbing mold (34), inserting the first liquid inlet pipe (31) into the first liquid inlet hole (310), inserting the first reflux pipe (32) into the first reflux hole (311), placing the back cover of the mobile phone coated with the coating liquid into the cavity of the lower rubbing mold (34), then buckling the upper rubbing mold (35) onto the lower rubbing mold (34), adsorbing the upper rubbing mold (35) by the second magnet (37), inserting the second liquid inlet pipe (312) into the second liquid inlet hole (38), and inserting the second reflux pipe (36) into the second reflux hole (39); S4, starting the driving motor (44), driving the screw rod (42) to rotate by rotating the driving motor (44), adjusting the positions of the carrier (41) and the pressing roller (46) until the pressing roller (46) is located above the upper rubbing mold (35), starting the cylinder (47) to make the pressing roller (46) contact the upper rubbing mold (35), and then closing the cylinder (47), injecting hot water through the first liquid inlet pipe (31), so that the hot water flows through the first liquid inlet pipe (31), the first liquid inlet hole (310), the liquid inlet channel (313), the second liquid outlet pipe, the second liquid outlet hole, the circulation channel (315), the second reflux hole (39), the second reflux pipe (36), the reflux channel (314), the first reflux hole (311) and the first reflux pipe (32) in sequence, completing the circulation of hot water, heating the upper rubbing mold (35) and the lower rubbing mold (34), and then heating the back cover of the mobile phone and the coating liquid; S5, controlling the carrier (41) to reciprocate, driving the pressing roller (46) to reciprocate on the upper rubbing mold (35), and completing the rubbing operation; S6, after the rubbing is completed, the hot water supply is stopped, and a cooling liquid is injected through the first liquid inlet pipe (31), and after the upper rubbing mold (35) and the lower rubbing mold (34) are cooled, air is injected through the first liquid inlet pipe (31) to drain the liquid in the internal flow channels of the upper rubbing mold (35) and the lower rubbing mold (34); S7, control the driving motor (44) to drive the screw (42) to rotate, so that the carrier (41) and the pressure roller (46) are reset, the base (54) is rotated 90 degrees counterclockwise until the protrusion (55) and the stopper (56) are abutted, so that the relevant nozzle is moved away, the handle (610) is rotated to drive the relevant parts to rotate, so that the suction cup (69) absorbs the printed mobile phone back cover, and the handle (610) is released, and the torsion spring (65) is used to drive the mobile phone back cover to separate from the lower printing mold (34) to complete the discharge.

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