A spraying device for a mobile phone back cover

Abstract

The utility model discloses a kind of spraying devices of mobile phone back cover, it is related to mobile phone back cover production field, to solve the problem that existing technology's spraying equipment cannot simultaneously spray the upper and lower end surfaces of mobile phone back cover, while mobile phone back cover is inconvenient to take after being sprayed on back cover placement mould.The L-shaped support frame is fixedly connected with a limiting tube on the upper end of the middle part of the spraying table, a rotating column is rotatably connected inside the limiting tube, the lower end of the rotating column extends out of the lower end of the limiting tube and is fixedly connected with a fixed disc, a plurality of support arms are fixedly connected in annular array on the side wall of the fixed disc, a hook is connected to the lower end of the side of the plurality of support arms away from the fixed disc, two baffles are fixedly connected in parallel on the middle rear end of the upper end surface of the spraying table, a spraying mechanism is fixedly connected to the middle of the inner side surface of the two baffles, by setting rotatable support arm structure and double-sided spraying mechanism, the upper and lower end surfaces of mobile phone back cover can be simultaneously synchronously sprayed.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone back cover production, specifically a spraying device for mobile phone back covers. Background Technology

[0002] A phone back cover is the outer casing component at the back of a smartphone, primarily serving to protect internal hardware (such as the battery and motherboard) and enhance its aesthetics. It is typically made of glass, plastic, metal, or ceramic; different materials affect the feel, heat dissipation, and wireless charging performance. Phone back covers require painting during production using a spraying device.

[0003] For example, CN 222369389 U, authorized publication number, discloses a mobile phone back cover production spraying device, which relates to the field of spraying device technology. Its technical solution includes a base, with an outer ring plate and an inner ring groove fixedly arranged on the top of the base. A spraying feeding mechanism is provided on the top of the base, and a trajectory component is provided on the outer ring plate and the inner ring groove. The spraying feeding mechanism includes a drive shaft, which passes through the top of the inner ring groove and is connected to the top of the inner ring groove via a bearing. A cross turntable is fixedly arranged on the top of the drive shaft. The beneficial effect of this mobile phone back cover production spraying device is that the rotation of the cross turntable causes multiple back cover placement molds to continuously move the mobile phone back cover to the spraying equipment body. This allows the back cover placement mold at the front position to be empty during the spraying of the mobile phone back cover, facilitating the placement of new mobile phone back covers. This allows for the continuous spraying of mobile phone back covers while the spraying equipment body is spraying the back cover, preventing wasted spraying time.

[0004] However, the spraying equipment in the above technology can only spray the top of the phone back cover, and cannot spray the top and bottom surfaces of the phone back cover at the same time. In addition, the phone back cover is not easy to pick up after being sprayed on the back cover placement mold. Therefore, the market urgently needs to develop a spraying device for phone back covers to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a spraying device for mobile phone back covers, so as to solve the problem mentioned in the background art that the spraying equipment can only spray the upper part of the mobile phone back cover, and cannot spray the upper and lower ends of the mobile phone back cover at the same time. At the same time, the mobile phone back cover is inconvenient to pick up after being sprayed on the back cover placement mold.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spraying device for a mobile phone back cover, comprising a spraying table, an L-shaped support frame fixedly connected to the middle of one side of the upper end of the spraying table, a limiting tube fixedly connected to the upper end of the L-shaped support frame and located in the middle of the spraying table, a rotating column rotatably connected inside the limiting tube, a fixed plate fixedly connected to the lower end of the rotating column extending out of the lower end of the limiting tube, a plurality of support arms fixedly connected in a circular array on the side wall of the fixed plate, a hook connected to the lower end of the plurality of support arms on the side away from the fixed plate, and two baffles fixedly connected in parallel to the rear end of the middle of the upper surface of the spraying table, a spraying mechanism fixedly connected to the middle of the inner end face of the two baffles.

[0007] Preferably, the end of the support arm away from the fixed plate is provided with a U-shaped slot, and both the front and rear ends of one side of the U-shaped slot are provided with rectangular limiting grooves.

[0008] Preferably, a connecting post is fixedly connected to the upper end of the hook, and two symmetrical rectangular limiting strips are fixedly connected to the outer end face of the connecting post. The upper end of the connecting post is inserted into the U-shaped slot and the two rectangular limiting strips slide into the two rectangular limiting grooves respectively.

[0009] Preferably, the upper end of the connecting column extends out of the upper end face of the support arm and is fixedly connected to a limiting disc.

[0010] Preferably, a drive box is fixedly connected to the upper end of the L-shaped support frame, a servo motor is fixedly installed inside the drive box, and a worm gear is fixedly connected to the output shaft of the servo motor.

[0011] Preferably, the upper end of the rotating column extends into the drive box and is fixedly connected to a worm gear, which meshes with the worm teeth on the output shaft of the servo motor.

[0012] Preferably, a delivery pump is fixedly connected to the middle of the outer end face of each of the two baffles, and the two delivery pumps are respectively connected to the two spraying mechanisms through connecting pipes. A spraying material box is fixedly connected to one side of the rear end face of the upper end face of the spraying platform, and the two delivery pumps are connected to the spraying material box through delivery pipes.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, by setting a rotatable support arm structure and a double-sided spraying mechanism, the upper and lower ends of the back cover of the mobile phone can be sprayed simultaneously, which significantly improves the spraying efficiency.

[0015] (2) In this utility model, the hook-type suspension design and quick-release connection structure make it more convenient to install and remove the mobile phone back cover. This not only ensures the stability during spraying, but also facilitates quick removal of parts after spraying, effectively improving production efficiency.

[0016] (3) In this utility model, continuous cyclic operation is realized through the worm gear transmission system and the workstation layout of the ring array. While spraying one workpiece, the loading and unloading operations of other workpieces can be carried out, minimizing the equipment waiting time. Attached Figure Description

[0017] Figure 1 This is a front view of a spraying device for a mobile phone back cover according to the present invention.

[0018] Figure 2 This is a front sectional view of the drive box of this utility model;

[0019] Figure 3 This is a side sectional view of the rotating column of this utility model;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Spraying table; 101. L-shaped support frame; 102. Limiting tube; 2. Rotating column; 201. Worm gear; 202. Fixed plate; 203. Support arm; 204. U-shaped slot; 205. Rectangular limiting groove; 3. Hook; 301. Connecting column; 302. Limiting disc; 303. Rectangular limiting strip; 4. Drive box; 401. Servo motor; 402. Worm gear; 5. Baffle; 501. Spraying mechanism; 502. Conveying pump; 503. Conveying pipe; 6. Spraying material box. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1-4This utility model provides an embodiment of a mobile phone back cover spraying device, including a spraying table 1. An L-shaped support frame 101 is fixedly connected to the middle of one side of the upper end of the spraying table 1. A limiting tube 102 is fixedly connected to the upper end of the L-shaped support frame 101, located in the middle of the spraying table 1. A rotating column 2 is rotatably connected inside the limiting tube 102. The lower end of the rotating column 2 extends out of the lower end of the limiting tube 102 and is fixedly connected to a fixing plate 202. A plurality of support arms 203 are fixedly connected in a circular array on the side wall of the fixing plate 202. A hook 3 is connected to the lower end of the side of the plurality of support arms 203 away from the fixing plate 202. Two baffles 5 are fixedly connected in parallel to the rear end of the upper surface of the spraying station 1. Spraying mechanism 501 is fixedly connected to the middle of the inner end face of the two baffles 5. By hanging the reserved camera slots on multiple mobile phone back covers one by one on the hooks 3, and then installing the hooks 3 on the support arms 203, the rotating column 2 drives the fixed plate 202 and the multiple support arms 203 on it to rotate, thereby causing the multiple support arms 203 to drive the multiple hooks 3 and the mobile phone back covers on them to rotate, so that the mobile phone back covers enter between the two baffles 5 one by one. The two spraying mechanisms 501 simultaneously spray the mobile phone back covers on both sides.

[0024] Please see Figure 2 and Figure 3 The upper end of the L-shaped support frame 101 is fixedly connected to the drive box 4. The drive box 4 is fixedly installed with a servo motor 401. The output shaft of the servo motor 401 is fixedly connected to a worm gear 402. The upper end of the rotating column 2 extends into the drive box 4 and is fixedly connected to a worm wheel 201. The worm wheel 201 is meshed with the teeth of the worm gear 402 on the output shaft of the servo motor 401. The servo motor 401 drives the worm gear 402 to rotate, which in turn drives the worm wheel 201 and the rotating column 2 on it to rotate.

[0025] Please see Figure 2 and Figure 4 The support arm 203 has a U-shaped slot 204 at one end away from the fixed plate 202. Rectangular limiting grooves 205 are provided at both the front and rear ends of one side of the U-shaped slot 204. A connecting post 301 is fixedly connected to the upper end of the hook 3. Two symmetrical rectangular limiting strips 303 are fixedly connected to the outer end face of the connecting post 301. The upper end of the connecting post 301 is inserted into the U-shaped slot 204, causing the two rectangular limiting strips 303 to slide into the two rectangular limiting grooves 205 respectively. The upper end of the support arm 203 extends out and is fixedly connected to the upper end of the limiting disc 302. After the mobile phone back cover is sprayed and moved out between the two baffles 5 by rotating, the connecting column 301 can be pulled up and slide out of the U-shaped slot 204 when the limiting disc 302 is pulled, and the rectangular limiting strip 303 can be moved out of the rectangular limiting groove 205 at the same time. This allows the upper end of the hook 3 to be moved horizontally out of the U-shaped slot 204, so that the mobile phone back cover is moved out of the lower end of the support arm 203, which is convenient for the subsequent processing of the mobile phone back cover.

[0026] Please see Figure 3 Two conveying pumps 502 are fixedly connected to the middle of the outer end face of the two baffles 5. The two conveying pumps 502 are respectively connected to the two spraying mechanisms 501 through connecting pipes. A spraying material box 6 is fixedly connected to the rear end side of the upper end face of the spraying table 1. The two conveying pumps 502 are connected to the spraying material box 6 through conveying pipes 503. The conveying pumps 502 convey the spraying material inside the spraying material box 6 to the spraying mechanism 501.

[0027] Working Principle: In use, multiple phone back covers are first suspended one by one onto the hook 3 through their pre-drilled camera holes. Then, the connecting post 301 at the upper end of the hook 3 is inserted into the U-shaped slot 204 at the end of the support arm 203, allowing the rectangular limiting strip 303 to engage with the rectangular limiting groove 205 for quick positioning and installation. The servo motor 401 is started to drive the worm gear 402 to rotate, which in turn drives the rotating column 2 and the fixed disk 202 to rotate at a uniform speed. This causes the support arm 203 to carry the suspended phone back covers sequentially through the spraying station between the two baffles 5. During this process, two delivery pumps 502 pump the paint from the paint material tank 6 through the delivery pipe 503 to the symmetrically arranged spraying mechanism 501, simultaneously spraying the upper and lower surfaces of the phone back covers. When the sprayed back cover rotates to the unloading station, the operator only needs to lift the limiting disc 302 to horizontally pull out the hook 3 for quick unloading. Simultaneously, subsequent back covers to be sprayed can continuously enter the spraying station, forming a cyclical operation.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A spraying device for a mobile phone back cover, comprising a spraying table (1), characterized in that: An L-shaped support frame (101) is fixedly connected to the middle of one side of the upper end of the spraying table (1). A limiting tube (102) is fixedly connected to the upper middle part of the L-shaped support frame (101) and located in the middle of the spraying table (1). A rotating column (2) is rotatably connected inside the limiting tube (102). The lower end of the rotating column (2) extends out of the lower end of the limiting tube (102) and is fixedly connected to a fixed plate (202). Multiple support arms (203) are fixedly connected in a ring array on the side wall of the fixed plate (202). A hook (3) is connected to the lower end of the multiple support arms (203) on the side away from the fixed plate (202). Two baffles (5) are fixedly connected in parallel to the rear end of the middle part of the upper surface of the spraying table (1). A spraying mechanism (501) is fixedly connected to the middle of the inner end face of the two baffles (5).

2. The spraying device for a mobile phone back cover according to claim 1, characterized in that: The support arm (203) is provided with a U-shaped slot (204) at one end away from the fixed plate (202), and rectangular limiting grooves (205) are provided at both the front and rear ends of one side of the U-shaped slot (204).

3. The spraying device for a mobile phone back cover according to claim 2, characterized in that: The upper end of the hook (3) is fixedly connected to a connecting post (301). Two symmetrical rectangular limiting strips (303) are fixedly connected to the outer end face of the connecting post (301). The upper end of the connecting post (301) is inserted into the U-shaped slot (204) and the two rectangular limiting strips (303) slide into the two rectangular limiting grooves (205) respectively.

4. The spraying device for a mobile phone back cover according to claim 3, characterized in that: The upper end of the connecting column (301) extends out to the upper end face of the support arm (203) and is fixedly connected to the limiting disc (302).

5. The spraying device for a mobile phone back cover according to claim 1, characterized in that: The upper end of the L-shaped support frame (101) is fixedly connected to a drive box (4), and a servo motor (401) is fixedly installed inside the drive box (4). A worm gear (402) is fixedly connected to the output shaft of the servo motor (401).

6. The spraying device for a mobile phone back cover according to claim 5, characterized in that: The upper end of the rotating column (2) extends into the drive box (4) and is fixedly connected to a worm gear (201). The worm gear (201) meshes with the teeth of the worm (402) on the output shaft of the servo motor (401).

7. The spraying device for a mobile phone back cover according to claim 5, characterized in that: A delivery pump (502) is fixedly connected to the middle of the outer end face of each of the two baffles (5). The two delivery pumps (502) are respectively connected to the two spraying mechanisms (501) through connecting pipes. A spraying material box (6) is fixedly connected to the rear end side of the upper end face of the spraying table (1). The two delivery pumps (502) are connected to the spraying material box (6) through delivery pipes (503).

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