Mobile phone backboard double-color shielding spraying clamp

Abstract

The utility model provides a mobile phone backboard double-color spraying shielding clamp, the mobile phone backboard double-color spraying shielding clamp comprises a spraying shielding plate, a first elastic frame body, a base plate and a second elastic frame body, the spraying shielding plate covers the base plate, the spraying shielding plate is provided with a buckle hole, the base plate is convexly provided with a buckle piece, the buckle piece is buckled in the buckle hole, and the first elastic frame body and the second elastic frame body are arranged on the base plate. A mounting groove used for placing a mobile phone backboard is formed between the spraying shielding plate and the base plate, the first elastic frame body is connected to the side, close to the base plate, of the spraying shielding plate and arranged on the edge of the spraying shielding plate, and the second elastic frame body is connected to the side, close to the spraying shielding plate, of the base plate and arranged on the edge of the base plate. The first elastic frame body and the second elastic frame body are used for clamping a mobile phone backboard. The mobile phone back plate can be rapidly disassembled and assembled through the spraying shielding plate and the base plate, the first elastic frame body and the second elastic frame body are in interference fit to elastically clamp the mobile phone back plate, the sealing and shielding effects of the first elastic frame body and the second elastic frame body on the mobile phone back plate are good, and the double-color spraying effect is good.

Description

Technical Field

[0001] This disclosure relates to the technical field of mobile phone back panel manufacturing, and in particular to a two-color masking fixture for mobile phone back panels. Background Technology

[0002] The glossy and matte finishes on the back panel of a mobile phone are achieved through spraying. Two-color spraying of the back panel requires controlling the spraying sequence and color coverage to create the two-color effect. First, one effect is sprayed, then a masking fixture is used to cover and hold the back panel while spraying the second effect.

[0003] Existing spray masking fixtures are made of hard plastic. When the hard plastic fixture covers the back panel of the phone, there is a gap between the hard plastic fixture and the back panel. This means that the color junctions of the phone back panel cannot be completely sealed and covered. As a result, paint overspray and color mixing occur at the color junctions of the phone back panel. Furthermore, paint cracking occurs at the junctions of the phone back panel after the fixture is removed. This leads to poor appearance of the phone back panel after spraying and fails to achieve the desired gloss and matte finish.

[0004] For example, the prior art document CN201920237408.9 discloses an assembled mobile phone case spray masking fixture, which includes an upper cover and a lower cover. The upper and lower covers are provided with multiple sets of cooperating claws and holes. The upper cover has multiple protrusions radially outward on its side, and the lower cover has a ring of raised protrusions on its side. This technical solution cannot completely seal and cover the color junctions, and cannot solve the problem of paint overspray and color mixing at the color junctions. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a mobile phone back panel dual-color masking fixture with better sealing and masking effects and dual-color spraying effect.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A dual-color spray masking clamp for a mobile phone back panel includes a spray mask plate, a first elastic frame, a base plate, and a second elastic frame. The spray mask plate covers the base plate and has a snap-fit ​​hole. The base plate has a protruding snap-fit ​​element that snaps into the snap-fit ​​hole. A mounting groove is formed between the spray mask plate and the base plate for placing the mobile phone back panel. The first elastic frame is connected to the side of the spray mask plate adjacent to the base plate and is located at the edge of the spray mask plate. The second elastic frame is connected to the side of the base plate adjacent to the spray mask plate and is located at the edge of the base plate. The first and second elastic frames are used to clamp the mobile phone back panel.

[0008] In one embodiment, the spray shield is integrally formed with the first elastic frame; and / or, the base plate is integrally formed with the second elastic frame.

[0009] In one embodiment, the spray shield has a first embedding groove, and the first elastic frame has a first protrusion, which is embedded in the first embedding groove.

[0010] In one embodiment, the base plate has a second embedding groove, and the second elastic frame has a second protrusion, which is embedded in the second embedding groove.

[0011] In one embodiment, the second elastic frame is further provided with an elastic protrusion on the side opposite to the base plate, the elastic protrusion being used to abut against the back panel of the receiving mobile phone.

[0012] In one embodiment, the base plate has an ejector through hole for ejecting the spray shield through a ejector pin.

[0013] In one embodiment, the base plate is provided with a fixing block, which is used to limit the platform installed on the spraying equipment.

[0014] In one embodiment, the spray shield is further provided with a first reinforcing member, which is disposed on the side of the spray shield opposite to the first elastic frame.

[0015] In one embodiment, the spray shield is provided with a plurality of first limiting members, and the base plate is provided with a plurality of second limiting members. Each first limiting member is attached to the side wall of the corresponding second limiting member, and each first limiting member is used to limit the movement of the second limiting member.

[0016] In one embodiment, the fastener is further provided with a second reinforcing member, which is located on the side of the fastener away from the second elastic frame and is connected to both the fastener and the base plate.

[0017] Compared with the prior art, this disclosure has at least the following advantages:

[0018] The aforementioned dual-color masking fixture for mobile phone back panels uses a snap-fit ​​connection between the masking plate and the base plate, allowing for quick assembly and disassembly of the mobile phone back panel. This improves the efficiency of back panel replacement and consequently, the production efficiency of back panel painting. The interference fit between the first and second elastic frames ensures a tight fit between the back panel and these frames, resulting in a better sealing and masking effect. This leads to better sealing at the color transitions and ultimately a better dual-color painting effect for the mobile phone back panel. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a dual-color masking fixture for a mobile phone back panel according to one embodiment.

[0021] Figure 2 for Figure 1 A cross-sectional view of the dual-color masking fixture for the back panel of a mobile phone shown.

[0022] Figure 3 for Figure 1 The exploded view of a dual-color masking fixture for the back panel of a mobile phone is shown.

[0023] Figure 4 for Figure 1 Another exploded view of the dual-color masking fixture for the back panel of the mobile phone shown. Detailed Implementation

[0024] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0028] like Figure 1 and Figure 2 As shown, this is a dual-color spray masking clamp 10 for a mobile phone back panel according to an embodiment of the present disclosure. It includes a spray masking plate 100, a first elastic frame 200, a base plate 300, and a second elastic frame 400. The spray masking plate 100 and the base plate 300 are made of PC polycarbonate resin and 20% GF glass fiber material, resulting in high rigidity and hardness. The first elastic frame 200 and the second elastic frame 400 are made of TPU thermoplastic polyurethane material, providing good elasticity and flexibility. The spray masking plate 100 covers the base plate 300, and the spray masking plate 100 has a snap-fit ​​hole 101. The base plate 300 has a protruding... A latching member 310 is provided, which is fastened to the latching hole 101. A mounting groove 102 is formed between the spray mask 100 and the base plate 300. The mounting groove 102 is used to place the back panel of the mobile phone. The first elastic frame 200 is connected to the side of the spray mask 100 adjacent to the base plate 300 and is disposed at the edge of the spray mask 100. The second elastic frame 400 is connected to the side of the base plate 300 adjacent to the spray mask 100 and is disposed at the edge of the base plate 300. The first elastic frame 200 and the second elastic frame 400 are used to elastically clamp the back panel of the mobile phone.

[0029] In this embodiment, the two-color spraying of the mobile phone back panel requires controlling the spraying sequence and color coverage to achieve a two-color effect. First, one effect is sprayed, and then the mobile phone back panel is clamped by the mobile phone back panel two-color masking clamp 10 to spray the second effect. When the mobile phone back panel is sprayed with the second effect, the mobile phone back panel is first installed in the mounting groove 102 and fastened to the buckle hole 101 by the buckle 310, so that the masking plate 100 covers the base plate 300. The first elastic frame 200 and the second elastic frame 400 elastically clamp the mobile phone back panel, so that the mobile phone back panel is fixed. The upper and lower sides of the mobile phone back panel are covered by the masking plate 100 and the base plate 300, and the middle frame of the mobile phone back panel is exposed. Then, the middle frame of the mobile phone back panel is sprayed. The first elastic frame 200 and the second elastic frame 400 seal the color junction of the sprayed colors.

[0030] The aforementioned dual-color masking fixture 10 for mobile phone back panels connects the masking plate 100 and the base plate 300 via a snap-fit ​​fastener 310, allowing for quick assembly and disassembly of the mobile phone back panel and improving the efficiency of back panel replacement, thereby increasing the production efficiency of back panel painting. The interference fit between the first elastic frame 200 and the second elastic frame 400 ensures a tight fit between the back panel and these frames, resulting in a better sealing and masking effect. This leads to better sealing at the color transitions and ultimately a better dual-color painting effect for the mobile phone back panel.

[0031] like Figure 2 As shown, in one embodiment, the spray mask 100 is integrally formed with the first elastic frame 200, and the base plate 300 is integrally formed with the second elastic frame 400. In this embodiment, the spray mask 100 and the first elastic frame 200 are integrally formed by injection molding, and the base plate 300 and the second elastic frame 400 are integrally formed by injection molding. Specifically, the spray mask 100 and the base plate 300 are made of PC polycarbonate resin and 20% GF glass fiber material, which makes the spray mask 100 and the base plate 300 have high rigidity and hardness. The first elastic frame 200 and the second elastic frame 400 are made of TPU thermoplastic polyurethane material, which makes the first elastic frame 200 and the second elastic frame 400 have good elasticity and flexibility, thereby making the first elastic frame 200 and the second elastic frame 400 fit and seal well with the back panel of the mobile phone.

[0032] like Figure 3As shown, in one embodiment, the spray shield 100 has a first mounting groove 103, and the first elastic frame 200 has a first protrusion 210, which is mounted in the first mounting groove 103. In this embodiment, the first protrusion 210 is mounted in the first mounting groove 103, making the fit between the first elastic frame 200 and the spray shield 100 tighter, increasing the structural stability of the first elastic frame 200 and the spray shield 100, and improving their resistance to vibration or external impact.

[0033] like Figure 4 As shown, in one embodiment, the base plate 300 has a second embedding groove 301, and the second elastic frame 400 has a second protrusion 410 protruding from it, which is embedded in the second embedding groove 301. In this embodiment, the second protrusion 410 is embedded in the second embedding groove 301. Through the engagement of the second protrusion 410 with the second embedding groove 301, the fit between the second elastic frame 400 and the base plate 300 is tighter, increasing the impact resistance of the connection between the second protrusion 410 and the base plate 300, thereby improving the connection strength between the second protrusion 410 and the base plate 300.

[0034] like Figure 4 As shown, in one embodiment, the second elastic frame 400 has an elastic protrusion 420 on the side opposite to the base plate 300. The elastic protrusion 420 is used to elastically abut against the back panel of the receiving mobile phone. In this embodiment, the elastic deformation adapts to the curved contour or thickness deviation of the back panel of the receiving mobile phone, so that the back panel of the mobile phone is elastically fixed. The elastic protrusion 420 also reduces the shaking generated during the movement of the back panel of the mobile phone, thereby making the coating effect of the back panel of the mobile phone better.

[0035] like Figure 4 As shown, in one embodiment, the base plate 300 has an ejection through hole 302, which is used to eject the spray mask 100 after the ejector pin passes through. In this embodiment, after the mobile phone back panel is coated, the ejector device can control the ejector pin to rise and fall through the ejection through hole 302, and the ejector pin ejects the spray mask 100, ensuring that the spray mask 100 is smoothly removed from the mobile phone back panel, thereby smoothly and quickly removing the coated mobile phone back panel.

[0036] like Figure 2As shown, in one embodiment, the base plate 300 is provided with a fixing block 320, which is used to limit the installation on the platform of the spraying equipment. In this embodiment, the fixing block 320 is fixedly engaged with the platform of the spraying equipment, so that the mobile phone back panel dual-color masking clamp 10 can be accurately positioned at a fixed position on the platform of the spraying equipment, ensuring that the mobile phone back panel dual-color masking clamp 10 and the clamped mobile phone back panel will not move or shake during the spraying process.

[0037] like Figure 1 As shown, in one embodiment, the masking plate 100 is further provided with a first reinforcing member 110, which is disposed on the side of the masking plate 100 opposite to the first elastic frame 200. In this embodiment, after spraying, the masking plate 100 is subjected to the pressure of the ejector pin. The first reinforcing member 110 increases the structural strength of the masking plate 100, improves its durability, extends its service life, and reduces production costs.

[0038] like Figures 2 to 4 As shown, in one embodiment, the spray mask 100 has a plurality of first limiting members 120 protruding from it, and there are multiple abutting arms 110. The base plate 300 has a plurality of second limiting members 330 protruding from it. Each of the first limiting members 120 is attached to the side wall of the corresponding second limiting member 330, and each limiting member 130 is used to limit the movement of the abutting arm 110. In this embodiment, by limiting the movement of the abutting arm 110 by the limiting member 130, the spray mask 100 and the base plate 300 are more tightly fitted, the clamping position of the mobile phone back panel is fixed, and the accuracy and consistency of the spray position of the mobile phone back panel are improved.

[0039] like Figure 4 As shown, in one embodiment, the fastener 310 is further provided with a second reinforcing member 311. The second reinforcing member 311 is disposed on the side of the fastener 310 opposite to the second elastic frame 400, and the second reinforcing member 311 is connected to both the fastener 310 and the base plate 300. In this embodiment, during the fastening process of the fastener 310 engaging with the fastening hole 101, the fastener 310 will deform under force. The second reinforcing member 311 enhances the structural strength of the fastener 310, enabling the fastener 310 to effectively resist pressure, prevent damage to the fastener 310, and thus extend the service life of the fastener 310.

[0040] Compared with the prior art, this disclosure has at least the following advantages:

[0041] The aforementioned dual-color masking fixture 10 for mobile phone back panels connects the masking plate 100 and the base plate 300 via a snap-fit ​​fastener 310, allowing for quick assembly and disassembly of the mobile phone back panel and improving the efficiency of back panel replacement, thereby increasing the production efficiency of back panel painting. The interference fit between the first elastic frame 200 and the second elastic frame 400 ensures a tight fit between the back panel and these frames, resulting in a better sealing and masking effect. This leads to better sealing at the color transitions and ultimately a better dual-color painting effect for the mobile phone back panel.

[0042] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A dual-color masking fixture for mobile phone back panels, characterized in that, The device includes a spray mask, a first elastic frame, a base plate, and a second elastic frame. The spray mask covers the base plate and has a snap-fit ​​hole. The base plate has a snap-fit ​​component that snaps into the snap-fit ​​hole. A mounting groove is formed between the spray mask and the base plate for placing a mobile phone back panel. The first elastic frame is connected to the side of the spray mask adjacent to the base plate and is located at the edge of the spray mask. The second elastic frame is connected to the side of the base plate adjacent to the spray mask and is located at the edge of the base plate. The first and second elastic frames are used to clamp the mobile phone back panel.

2. The dual-color masking fixture for mobile phone back panels according to claim 1, characterized in that, The spray shield is integrally formed with the first elastic frame; and / or, the base plate is integrally formed with the second elastic frame.

3. The dual-color masking fixture for mobile phone back panels according to claim 2, characterized in that, The spray shield has a first embedding groove, and the first elastic frame has a first protrusion, which is embedded in the first embedding groove.

4. The dual-color masking fixture for mobile phone back panels according to claim 2, characterized in that, The base plate has a second embedding groove, and the second elastic frame has a second protrusion, which is embedded in the second embedding groove.

5. The dual-color masking fixture for mobile phone back panels according to claim 1, characterized in that, The second elastic frame also has an elastic protrusion on the side opposite to the base plate, which is used to abut against the back panel of the receiving mobile phone.

6. The dual-color masking fixture for mobile phone back panels according to claim 1, characterized in that, The base plate has an ejector hole for ejecting the spray shield through the ejector pin.

7. The dual-color masking fixture for mobile phone back panels according to claim 1, characterized in that, The base plate is provided with a fixing block, which is used to limit the installation on the platform of the spraying equipment.

8. The dual-color masking fixture for mobile phone back panels according to claim 1, characterized in that, The spray shield is also provided with a first reinforcing member, which is located on the side of the spray shield away from the first elastic frame.

9. The dual-color masking fixture for mobile phone back panels according to claim 1, characterized in that, The spray shield is provided with a plurality of first limiting members, and the base plate is provided with a plurality of second limiting members. Each first limiting member is attached to the side wall of the corresponding second limiting member, and each first limiting member is used to limit the movement of the second limiting member.

10. The dual-color masking fixture for mobile phone back panels according to claim 1, characterized in that, The fastener is further provided with a second reinforcing member, which is located on the side of the fastener away from the second elastic frame. The second reinforcing member is connected to both the fastener and the base plate.

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