A mobile phone back cover coating device

Abstract

The utility model discloses a kind of mobile phone back cover coating device, belong to mobile phone accessory processing equipment technical field, including rack, workstation, controller, and set in the drying mechanism and the upper mechanism of workstation upper, the drying mechanism includes the portal frame that can slide in rack top chute, fan and air supply plate are equipped on portal frame, the upper mechanism includes the linear motor that can slide on rack inner wall slide rail, rotatingly connected drum is equipped on linear motor, controller electrically connected and drive drying mechanism and the upper mechanism synchronous coordinated motion, realize the coating and drying integrated operation of mobile phone back cover. The utility model solves the problem of long processing cycle caused by process separation in the prior art, realizes coating and drying, significantly shortens working time, simplifies work flow, effectively improves product yield and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone accessory processing technology, and in particular to a mobile phone back cover coating device. Background Technology

[0002] With the rapid development of the smartphone market, consumers are increasingly demanding higher quality and durability in terms of phone appearance. As an important exterior component of a phone, the back cover usually needs to be coated to achieve specific visual effects, improve the feel, and enhance scratch resistance.

[0003] In existing production processes, the coating process for mobile phone back covers and the subsequent drying and curing process are usually completed as two independent steps on different equipment or workstations. After the coating is completed, the mobile phone back cover needs to be transferred to a special drying equipment for long-term heating treatment. Only after the coating is completely cured can it proceed to the next step.

[0004] This production model with separate processes has obvious shortcomings. The transfer process between the coating and drying stations, as well as the independent drying waiting time, greatly prolongs the entire production cycle and reduces production efficiency. The surface of the mobile phone back cover that has just been coated is covered with a layer of wet film that has not yet cured. During the transfer to the drying equipment, its wet surface is very easy to attract dust, fibers and other impurities in the air. Once these impurities adhere, they are difficult to remove, eventually forming defects on the product surface, which seriously affects the product yield and causes unnecessary material waste.

[0005] Therefore, this utility model proposes a mobile phone back cover coating device to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems in the existing mobile phone back cover coating device, such as the separation of coating and drying processes, which leads to long processing cycles and complicated procedures, and the fact that the wet coating surface is easily contaminated by dust during station transfer, affecting product yield, this utility model aims to provide a mobile phone back cover coating device with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a mobile phone back cover coating device, including: a frame, a worktable, a controller; as well as a drying mechanism and an overlay mechanism.

[0008] The drying mechanism is located above the workbench, and the covering mechanism is located between the drying mechanism and the workbench. The drying mechanism has a gantry frame, with sliders fixedly connected to the bottom two sides of the gantry frame. The top two sides of the frame are provided with corresponding sliding grooves for the sliders to slide. A processing block is also installed on the gantry frame. A fan is installed at the air inlet end of the processing block, and an air supply plate facing the workbench is installed at the air outlet end.

[0009] Furthermore, the covering mechanism has a linear motor, and slide rails are fixedly connected to both sides of the inner wall of the frame. The slide rails are provided with a groove for the linear motor to slide. The working part of the linear motor is combined with a rotating shaft in a rotatable connection manner. A roller is fixed to the outer peripheral wall of the rotating shaft. The controller is electrically connected to the fan, the drive device of the duct frame and the linear motor respectively, and drives the drying mechanism and the covering mechanism to move synchronously and in a coordinated manner through unified and coordinated control.

[0010] Preferably, in order to significantly improve the heat exchange efficiency of the drying process and effectively prevent external dust from entering the working area, the surface of the air supply plate facing the workbench is integrally formed with multiple fins, which are sheet-like structures extending along the airflow direction; at the same time, baffles are vertically fixed on opposite sides of the air supply plate along the extension direction of the second slide groove, and the height of the baffles is not lower than the height of the fins, thereby forming a semi-enclosed drying environment.

[0011] Preferably, in order to achieve intelligent and precise control of the drying process, the processing block is symmetrically fixedly connected to one side of the workbench and on both sides of the air supply plate. The detection direction of the identifier is towards the surface of the workbench, and it is used to obtain the coating status information of the mobile phone back cover surface in real time.

[0012] Preferably, as a specific implementation, the controller is also used to adjust the operating status of the fan in real time according to the feedback signal of the identifier, so as to realize closed-loop control of on-demand heating and save energy.

[0013] Preferably, in order to achieve uniform and controllable output of the coating liquid, the roller is designed as a hollow structure, and multiple air jet holes for seeping out the coating liquid are arranged in an array along its axial and circumferential directions on its outer peripheral wall, ensuring that the coating liquid can stably wet the entire surface of the roller.

[0014] Preferably, in order to ensure the stability and load-bearing capacity of the rotating shaft during high-speed rotation, both ends of the rotating shaft are rotatably supported on the housing of the linear motor by cylindrical roller bearings.

[0015] Preferably, in order to ensure that the coating trajectory of the coating mechanism corresponds precisely to the drying trajectory of the drying mechanism, the extension direction of the slide rail is parallel to the extension direction of the second slide groove, and the slide rail is located below the second slide groove in the vertical direction in the spatial layout, thus forming a stable and non-interfering double-layer motion system.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problems of long processing cycle, complicated process and easy contamination of wet film caused by the separation of coating and drying processes in the prior art by integrating the coating mechanism and drying mechanism into the same frame and driving the two to move synchronously and in coordination by the controller. It achieves coating and drying immediately, greatly shortens working time, simplifies the workflow and improves product yield.

[0017] 2. This utility model solves the problems of low heat utilization and inability to accurately control the drying area in traditional drying methods by setting up a hot air system consisting of a fan, a processing block, and a finned air delivery plate on a moving gantry frame, and adding an identifier. It achieves the technical effect of multi-directional, rapid and precise heating and drying of mobile phone back covers, thus improving drying efficiency.

[0018] 3. This utility model solves the problems of uneven coating and poor stability that may exist in traditional coating methods by using a linear motor to drive a roller with air jet holes to perform a composite motion of linear movement and rotation, and using cylindrical roller bearings to provide stable support. This achieves efficient, uniform and stable coating of mobile phone back covers and ensures the quality of the coating. Attached Figure Description

[0019] Figure 1 This is a perspective view of a mobile phone back cover coating device proposed in this utility model; Figure 2 This is a schematic diagram of the drying mechanism of a mobile phone back cover coating device proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the fins of a mobile phone back cover coating device proposed in this utility model; Figure 4 This is a schematic diagram of the upper coating mechanism of a mobile phone back cover coating device proposed in this utility model.

[0020] Legend: 1. Frame; 2. Drying mechanism; 201. Slider; 202. Gantry frame; 203. Processing block; 204. Fan; 205. Identifier; 206. Air supply plate; 207. Baffle; 208. Fin; 3. Covering mechanism; 301. Slide rail; 302. Slide groove one; 303. Linear motor; 304. Rotary shaft; 305. Cylindrical roller bearing; 306. Drum; 307. Air jet; 4. Slide groove two; 5. Controller; 6. Worktable. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Please refer to Figures 1 to 4 This utility model provides a mobile phone back cover coating device, which aims to solve the problems of low production efficiency, cumbersome process and easy contamination caused by the separation of mobile phone back cover coating and drying processes in the prior art.

[0023] like Figure 1 As shown, a mobile phone back cover coating device includes a frame 1, a worktable 6 horizontally fixed on the upper part of the frame 1, the frame 1 provides a mounting base for the entire device, the worktable 6 is used to support the mobile phone back cover to be processed, the device also includes a drying mechanism 2 set above the worktable 6 and an overlay mechanism 3 set between the drying mechanism 2 and the worktable 6, and the device also includes a controller 5, which is electrically connected to the drying mechanism 2 and the overlay mechanism 3 respectively, and is used to uniformly schedule and drive the drying mechanism 2 and the overlay mechanism 3 to perform synchronous and coordinated movements, thereby realizing the integrated operation of coating and drying of the mobile phone back cover.

[0024] like Figure 1 and Figure 2 As shown, the drying mechanism 2 includes a gantry frame 202. Slider 201 is fixedly connected to both sides of the bottom of the gantry frame 202. Slide grooves 4 are correspondingly opened on both sides of the top of the frame 1. The slider 201 is slidably connected in the slide grooves 4, so that the gantry frame 202 can move back and forth above the worktable 6 along the length of the slide grooves 4. A processing block 203 is installed on the gantry frame 202. A fan 204 is installed at the air inlet end of the processing block 203. An air supply plate 206 facing the worktable 6 is installed at the air outlet end of the processing block 203. The airflow generated by the fan 204 passes through the internal channel of the processing block 203 and is blown out from the air supply plate 206 to dry the back cover of the mobile phone on the worktable 6. The controller 5 is electrically connected to the drive device of the fan 204, the gantry frame 202 and the linear motor 303, which will be described later.

[0025] Please refer to Figure 1 and Figure 4The coating mechanism 3 includes a linear motor 303. Slide rails 301 are fixedly connected to both sides of the inner wall of the frame 1. A groove 302 is provided on the slide rail 301 for the linear motor 303 to slide. The linear motor 303 slides in conjunction with the groove 302 through its own slider 201 structure, providing a precise linear reciprocating motion basis for subsequent coating operations. A rotating shaft 304 is rotatably connected to the working part of the linear motor 303. Both ends of the rotating shaft 304 are rotatably supported by cylindrical roller bearings 305. On the housing of the linear motor 303, a cylindrical roller bearing 305 is used to bear radial and axial loads to ensure smooth rotation. A roller 306 is fixed on the outer peripheral wall of the rotating shaft 304. The roller 306 has a hollow structure, and multiple air jet holes 307 for exuding coating liquid are arranged in an array along its axial and circumferential directions on its outer peripheral wall. The rotation of the rotating shaft 304 drives the roller 306 to rotate in friction with the surface of the mobile phone back cover, while the coating liquid is evenly output from the air jet holes 307 to realize the roller coating operation.

[0026] As a preferred embodiment, in order to improve drying efficiency and prevent contamination from external impurities, please refer to... Figure 2 and Figure 3 The surface of the air supply plate 206 facing the workbench 6 is integrally formed with multiple fins 208. The fins 208 are sheet-like structures extending along the airflow direction to increase the heat exchange area. Furthermore, baffles 207 are vertically fixed on opposite sides of the air supply plate 206 along the extension direction of the slide groove 24. The height of the baffles 207 is not lower than the height of the fins 208.

[0027] As another preferred embodiment, in order to achieve accurate identification of the drying area, please refer to... Figure 2 The processing block 203 faces the workbench 6 on one side, and the identifiers 205 are symmetrically fixedly connected to both sides of the air supply plate 206. The detection direction of the identifiers 205 is towards the surface of the workbench 6.

[0028] As another preferred embodiment, to ensure that the coating liquid can be uniformly and stably output from the surface of the roller 306, please refer to... Figure 4 Multiple jet holes 307 for exuding coating liquid are arranged in an array along its axial and circumferential directions on the outer peripheral wall of the roller 306.

[0029] As another preferred embodiment, to ensure that the covering mechanism 3 and the drying mechanism 2 are coordinated and do not interfere with each other on their respective movement paths, please refer to... Figure 1 The extension direction of slide rail 301 is parallel to the extension direction of slide groove 4, and slide rail 301 is located below slide groove 4 in the vertical direction.

[0030] As another preferred embodiment, in order to realize intelligent closed-loop control based on the drying area, the controller 5 is also electrically connected to the identifier 205 to receive feedback signals from the identifier 205 and adjust the operating status of the fan 204 in real time based on the feedback signals.

[0031] Working principle: When the coating is completed, the drive controller 5 starts the drying mechanism 2. The gantry 202 slides in the slide grooves 4 on both sides of the frame 1 under the action of the sliders 201 on both sides of the bottom. Then the fan 204 drives it through the processing block 203 at the bottom. The processing block 203 generates airflow on the air supply plate 206 at the output end. The airflow generated by the air supply plate 206 will be heated by the action of multiple fins 208 at its bottom. The mobile phone back cover on the top worktable 6 of the frame 1 is dried. During the process, the identifiers 205 on both sides of the processing block 203 can identify the drying area to improve the drying rate. The baffles 207 on both sides of the air supply plate 206 can prevent external dust from entering the air supply plate 206 and causing damage. Under the action of the drying mechanism 2, the mobile phone back cover can be dried quickly in multiple directions. Furthermore, under the action of the controller 5, the linear motor 303 will slide within the groove 302 of the slide rail 301 on both sides of the inner wall of the frame 1. The linear motor 303 is internally connected to a rotating shaft 304. Since the outer wall of the rotating shaft 304 is fixed with a roller 306, it will rotate with friction against the back cover of the mobile phone during the coating process. While the rotating shaft 304 rotates, the roller 306 will spray coating liquid from the air jet 307. The sprayed coating liquid will be applied to the back cover of the mobile phone on the bottom worktable 6 while it is being moved by the linear motor 303. During the process, the cylindrical roller bearings 305 on both sides of the roller 306 can withstand radial and axial loads, improving stability. This allows the drying mechanism 2 to start the drying task simultaneously during the coating process of the coating mechanism 3, greatly reducing working time and simplifying the workflow.

Claims

1. A mobile phone back cover coating apparatus, comprising a frame (1) and a worktable (6) horizontally fixed to the upper part of the frame (1), the mobile phone back cover coating apparatus further comprising a controller (5), characterized in that, The mobile phone back cover coating device further includes: The drying mechanism (2) is set above the workbench (6). The drying mechanism (2) includes a gantry frame (202). Slider (201) is fixedly connected to the bottom two sides of the gantry frame (202). Slide grooves (4) are opened on the top two sides of the frame (1) for the slider (201) to slide. A processing block (203) is installed on the gantry frame (202). A fan (204) is installed at the air inlet end of the processing block (203). An air supply plate (206) facing the workbench (6) is installed at the air outlet end of the processing block (203). An overlay mechanism (3) is provided between the drying mechanism (2) and the worktable (6). The overlay mechanism (3) includes a linear motor (303). Slide rails (301) are fixedly connected to both sides of the inner wall of the frame (1). A slide groove (302) is provided on the slide rail (301) for the linear motor (303) to slide. The working part of the linear motor (303) is rotatably connected to a rotating shaft (304). A roller (306) is fixed to the outer peripheral wall of the rotating shaft (304). The controller (5) is electrically connected to the fan (204), the drive device of the gantry (202) and the linear motor (303) respectively, so as to drive the drying mechanism (2) and the covering mechanism (3) to move synchronously and in coordination.

2. The mobile phone back cover coating apparatus according to claim 1, characterized in that, The air supply plate (206) has multiple fins (208) integrally formed on the surface facing the workbench (6), and baffles (207) are respectively vertically fixed on opposite sides of the air supply plate (206) along the extension direction of the slide groove (4).

3. The mobile phone back cover coating device according to claim 1, characterized in that, The processing block (203) faces the workbench (6) on one side, and on both sides of the air supply plate (206), a recognition device (205) is symmetrically fixedly connected, and the detection direction of the recognition device (205) is towards the surface of the workbench (6).

4. The mobile phone back cover coating apparatus according to claim 1, characterized in that, The roller (306) has a hollow structure, and multiple jet holes (307) for exuding coating liquid are arranged in an array along its axial and circumferential directions on its outer peripheral wall.

5. The mobile phone back cover coating apparatus according to claim 1, characterized in that, The two ends of the rotating shaft (304) are rotatably supported on the housing of the linear motor (303) by cylindrical roller bearings (305).

6. The mobile phone back cover coating apparatus according to claim 1, characterized in that, The extension direction of the slide rail (301) is parallel to the extension direction of the second slide groove (4), and the slide rail (301) is located below the second slide groove (4) in the vertical direction.

7. The mobile phone back cover coating apparatus according to claim 2, characterized in that, The fin (208) is a sheet-like structure extending along the airflow direction, and the height of the baffle (207) is not lower than the height of the fin (208).

8. The mobile phone back cover coating apparatus according to claim 3, characterized in that, The controller (5) is also used to adjust the operating status of the fan (204) in real time according to the feedback signal of the identifier (205).

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