Arc-shaped mold module glue pouring jig

Abstract

The utility model discloses an arc module glue pouring jig, it includes jig main part, apron and positioning jig, the apron detachably covers and sets up on positioning jig, positioning jig sets up on jig main part, the first clamping slot and two groups of second clamping slots for the positioning of PCB board are seted up on the positioning jig, and two groups of second clamping slots are respectively symmetrical and set up on the both sides of first clamping slot, in the utility model, through setting up the first clamping slot and second clamping slot for positioning on positioning jig, thereby realize the effective positioning clamping of arc PCB board middle position and both sides position, realize accurate spacing, and it is convenient for subsequent glue pouring, effectively solve the positioning difficulty of arc module because of the curved surface structure, and the problem of easy deviation, improve the glue pouring quality.

Description

Technical Field

[0001] This utility model relates to the field of glue dispensing equipment technology, and in particular to an arc-shaped module glue dispensing fixture. Background Technology

[0002] In the LED display manufacturing industry, curved displays are increasingly widely used to meet the needs of special shapes and visual experiences. The core display unit of a curved display is composed of multiple curved modules spliced ​​together. One of the key aspects of manufacturing curved modules is to stably and accurately fix their flexible PCB boards onto the curved base shell and to encapsulate their lamp surfaces with potting compound to provide protection, insulation, and structural reinforcement.

[0003] However, existing potting processes and conventional fixtures face significant challenges when dealing with curved modules. First, curved PCBs are irregularly shaped curved surfaces, lacking effective and uniform positioning benchmarks in potting fixtures, making them prone to misalignment and affecting potting quality. Second, during the potting process, the flow of liquid adhesive on the curved surface is difficult to control, easily leading to problems such as uneven thickness, poor edge coverage, or adhesive overflow. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an arc-shaped module potting fixture to solve the problems of positioning difficulties and easy misalignment of arc-shaped modules caused by their curved surface structure in the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an arc-shaped module potting fixture, which includes a fixture body, a cover plate and a positioning fixture. The cover plate is detachably mounted on the positioning fixture, and the positioning fixture is mounted on the fixture body. The positioning fixture has a first slot for positioning the PCB board and two sets of second slots, and the two sets of second slots are symmetrically arranged on both sides of the first slot.

[0006] Furthermore, the arc-shaped module potting fixture of this utility model also includes a demolding device, which includes a driving mechanism and an ejector pin structure. The driving mechanism is connected to the ejector pin structure in a transmission manner. The ejector pin structure is movably arranged in the vertical height direction through the driving mechanism. The ejector pin structure is used to lift the PCB board.

[0007] Furthermore, in the arc-shaped module potting fixture of this utility model, the ejector pin structure includes a support plate and a plurality of ejector pins. The support plate is movably arranged in the vertical height direction by the driving mechanism. The bottom of the ejector pin is fixed on the support plate, and the top of the ejector pin is used to detachably abut against the PCB board.

[0008] Furthermore, in the arc-shaped module potting fixture of this utility model, the positioning fixture is provided with a through hole, and one end of the plurality of ejector pins away from the support plate passes through the through hole to be detachably abutted against the PCB board.

[0009] Furthermore, in the arc-shaped module potting fixture of this utility model, the driving mechanism includes a cylinder, the cylinder is disposed on the fixture body, and the piston rod of the cylinder is connected to the support plate.

[0010] Furthermore, in the arc-shaped module potting fixture of this utility model, the demolding device further includes a plurality of guide rods, which are disposed on the fixture body and extend along the vertical height direction. The support plate is slidably sleeved on the plurality of guide rods.

[0011] Furthermore, in the arc-shaped module potting fixture of this utility model, the cover plate includes a rectangular frame and a grid-like support, and the grid-like support is disposed in the rectangular frame.

[0012] Furthermore, in the arc-shaped module potting fixture of this utility model, the first slot includes a first strip groove and a plurality of first positioning holes. The first strip groove extends along a first horizontal direction, and the plurality of first positioning holes are located on the first strip groove, with adjacent first positioning holes spaced apart by a certain distance.

[0013] Furthermore, in the arc-shaped module potting fixture of this utility model, the second slot includes a second strip groove and a plurality of second positioning holes. The second strip groove extends along a horizontal first direction, and the plurality of second positioning holes are located on the second strip groove, with adjacent second positioning holes spaced apart by a certain distance.

[0014] Furthermore, in the arc-shaped module potting fixture of this utility model, the positioning fixture is provided with a first magnetic suction element, and the cover plate is provided with a second magnetic suction element corresponding to the first magnetic suction element.

[0015] The beneficial effects of this invention are as follows: Since the PCB board and support structure are assembled before glue application, the first support in the middle of the curved PCB board can be initially matched and positioned using the first slot. Then, the PCB board is flattened, and the second supports on both sides of the PCB board are precisely positioned using two sets of second slots. This achieves precise spatial positioning of the PCB board and positioning fixture before glue application, effectively solving the positioning difficulties and misalignment problems caused by the curved surface structure of the curved module, and significantly improving the assembly accuracy and consistency before glue application. Furthermore, because the PCB board is flattened on the positioning fixture, and through the engagement of the first and second slots and the pressing of the cover plate, the curved PCB board can be precisely laid flat on the glue application fixture. This allows for better control of the liquid glue flow on the PCB board surface during glue application, reducing problems such as uneven thickness, poor edge coverage, or glue overflow, thus improving the glue application quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the arc-shaped module potting fixture described in this utility model from one perspective under one embodiment.

[0017] Figure 2 This is a schematic diagram of the arc-shaped module potting fixture described in this utility model from another perspective under one embodiment.

[0018] Figure 3 This is a front view of one embodiment of the arc-shaped module potting fixture described in this utility model.

[0019] Figure 4 This is an exploded view of the arc-shaped module potting fixture described in this utility model from one perspective in one embodiment.

[0020] Figure 5 This is a schematic diagram of the positioning fixture in the arc-shaped module potting fixture of the present invention from one perspective in one embodiment.

[0021] Figure 6 This is a schematic diagram of the structure of the first support in this utility model from one perspective under one embodiment.

[0022] Figure 7 This is a schematic diagram of the structure of the second support in one embodiment of the present invention from one perspective.

[0023] Label Explanation: 1. Cover plate; 11. Rectangular frame; 12. Grid-like support; 2. Positioning fixture; 21. First slot; 22. First strip groove; 23. First positioning hole; 24. Second slot; 25. Second strip groove; 26. Second positioning hole; 27. Through hole; 28. Third positioning hole; 3. Demolding device; 31. Cylinder; 32. Ejector pin structure; 33. Support plate; 34. Ejector pin; 35. Guide rod; 4. The main body of the fixture; 5. First support; 6. Second support. Detailed Implementation

[0024] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0025] Please refer to Figure 1 as well as Figure 2 This utility model provides an arc-shaped module potting fixture, which includes a fixture body 4, a cover plate 1, and a positioning fixture 2. The cover plate 1 is detachably mounted on the positioning fixture 2. The positioning fixture 2 is mounted on the fixture body 4. The positioning fixture 2 has a first slot 21 for PCB board positioning and two sets of second slots 24. The two sets of second slots 24 are symmetrically arranged on both sides of the first slot 21.

[0026] In practical applications, the aforementioned arc-shaped module potting fixture is used for potting arc-shaped modules. From bottom to top, the arc-shaped module includes an arc-shaped bottom shell, a PCB board (i.e., a flexible circuit board), a support structure, and an arc-shaped face mask. The support structure includes two types of supports mounted on the PCB board. Each support includes a frame and a protrusion. The frame is located on the back of the PCB board, and the protrusion is located on the frame. The protrusion passes through the PCB board and extends outwards from the front of the PCB board, providing a unified mechanical interface for locking the arc-shaped face mask. This allows the front of the PCB board to be quickly and accurately positioned and fixedly connected to the arc-shaped face mask via the protrusion. The back of the PCB board is mounted on the arc-shaped bottom shell via the frame.

[0027] It should be noted that these two types of brackets can be as follows: Figure 6 as well as Figure 7 As shown, Figure 6 The bracket shown is the first bracket 5. Figure 7 The bracket shown is the second bracket 6. There can be one first bracket 5, which is used to connect and fix to the central axis of the PCB board; there are multiple second brackets 6, located on either side of the first bracket 5. During assembly, both types of brackets are first assembled onto the PCB board, and then the assembled PCB board is positioned and secured onto the potting fixture using the bracket's frame.

[0028] As can be seen from the above description, the beneficial effects of this utility model are as follows: Since the PCB board and the bracket structure are assembled together before potting, the first bracket 5 in the middle of the arc-shaped PCB board can be initially matched and positioned by the first slot 21. Then, the PCB board is flattened and the second brackets 6 on both sides of the PCB board are precisely limited by the two sets of second slots 24. This achieves precise spatial positioning of the PCB board and the positioning fixture 2 before potting, effectively solving the positioning difficulties and easy misalignment problems caused by the curved surface structure of the arc module, and significantly improving the assembly accuracy and consistency before potting. Moreover, since the PCB board is flattened on the positioning fixture 2, and the first slot 21 and the second slot 24 are engaged and the cover plate 1 is pressed, the arc-shaped PCB board can be accurately laid flat on the potting fixture. Thus, during the potting process, the flow of liquid glue on the PCB board surface can be better controlled, reducing problems such as uneven thickness, poor edge coverage, or glue overflow, and improving the potting quality.

[0029] Furthermore, such as Figure 1 as well as Figure 2 As shown, the arc-shaped module potting fixture of this utility model also includes a demolding device 3. The demolding device 3 includes a driving mechanism and an ejector pin structure 32. The driving mechanism is connected to the ejector pin structure 32 in a transmission manner. The ejector pin structure 32 is movably arranged in the vertical height direction through the driving mechanism. The ejector pin structure 32 is used to lift the PCB board.

[0030] As described above, by driving the ejector pin structure 32 to lift the PCB board vertically through the drive mechanism, the automatic demolding function after the glue has been poured and cured is realized. This effectively avoids the damage to the glue layer, deformation or damage to the PCB board that may be caused by uneven force during traditional manual demolding, and significantly improves the reliability of the demolding process.

[0031] Furthermore, such as Figure 3 As shown, in the arc-shaped module potting fixture of this utility model, the ejector pin structure 32 includes a support plate 33 and a plurality of ejector pins 34. The support plate 33 is movably arranged in the vertical height direction by the driving mechanism. The bottom of the ejector pin 34 is fixed on the support plate 33, and the top of the ejector pin 34 is used to detachably abut against the PCB board.

[0032] As described above, the combined structure of the support plate 33 and multiple ejector pins 34 allows the lifting force to be evenly distributed across multiple support points on the back of the PCB board, preventing localized stress concentration that could lead to PCB board deformation or LED damage.

[0033] Furthermore, such as Figure 5As shown, in the arc-shaped module potting fixture of this utility model, the positioning fixture 2 is provided with a through hole 27, and one end of the plurality of ejector pins 34 away from the support plate 33 passes through the through hole 27 to be detachably abutted against the PCB board.

[0034] As described above, the through hole 27 on the positioning fixture 2 precisely guides the ejector pin 34, ensuring that the top of the ejector pin 34 accurately abuts against the pre-set lifting area on the PCB board, avoiding the risk of the ejector pin 34 deviating and touching electronic components, and making the lifting and lowering movement of the ejector pin 34 more stable and reliable.

[0035] Furthermore, such as Figure 3 As shown, in the arc-shaped module potting fixture of this utility model, the driving mechanism includes a cylinder 31, which is mounted on the fixture body 4, and the piston rod of the cylinder 31 is connected to the support plate 33.

[0036] As can be seen from the above description, using cylinder 31 as the drive source can provide stable and controllable lifting power. It has a fast response speed and uniform output, which is suitable for the lifting and retraction of the ejector structure 32, and the maintenance cost is relatively low.

[0037] Furthermore, such as Figure 3 As shown, in the arc-shaped module potting fixture of this utility model, the demolding device 3 further includes a plurality of guide rods 35, which are disposed on the fixture body 4 and extend along the vertical height direction. The support plate 33 is slidably sleeved on the plurality of guide rods 35.

[0038] As described above, the guide rod 35 provides vertical guidance and constraint for the support plate 33, preventing the support plate 33 from deflecting or shaking during the lifting process, ensuring that the multiple ejector pins 34 always maintain synchronous vertical movement, and further improving the operational stability and positioning accuracy of the demolding device 3.

[0039] Furthermore, such as Figure 3 as well as Figure 4 As shown, in the arc-shaped module potting fixture of this utility model, the cover plate 1 includes a rectangular frame 11 and a grid-shaped support 12, and the grid-shaped support 12 is disposed in the frame of the rectangular frame 11.

[0040] As described above, the cover plate 1 is specifically defined as a combination structure of a rectangular frame 11 and a grid-like support 12. The grid-like structure ensures the overall strength and sufficient downward pressure of the cover plate 1 while greatly reducing the weight of the cover plate 1. It also provides an observation window and a glue-filling channel, which makes it convenient for operators to observe the flow and filling of the glue during the glue-filling process, thereby improving the controllability and convenience of the process.

[0041] Furthermore, such as Figure 5 As shown, in the arc-shaped module potting fixture of this utility model, the first slot 21 includes a first strip groove 22 and a plurality of first positioning holes 23. The first strip groove 22 extends along a first horizontal direction, and the plurality of first positioning holes 23 are located on the first strip groove 22, and adjacent first positioning holes 23 are spaced apart by a certain distance.

[0042] Furthermore, such as Figure 5 As shown, in the arc-shaped module potting fixture of this utility model, the second slot 24 includes a second strip groove 25 and a plurality of second positioning holes 26. The second strip groove 25 extends along a first horizontal direction, and the plurality of second positioning holes 26 are located on the second strip groove 25, and adjacent two second positioning holes 26 are spaced apart by a certain distance.

[0043] As described above, the first slot 21 and the second slot 24 are configured to consist of strip grooves and spaced positioning holes. The strip grooves provide initial, wide-range positioning guidance, while the precisely distributed positioning holes can precisely match the protrusions or holes on the brackets mounted on the PCB, greatly improving positioning accuracy and reliability.

[0044] Furthermore, in the arc-shaped module potting fixture described in this utility model, the positioning fixture 2 is provided with a first magnetic suction element, and the cover plate 1 is provided with a second magnetic suction element corresponding to the first magnetic suction element. In practical applications, the edge of the positioning fixture 2 can be provided with corresponding positioning posts, and correspondingly, corresponding locking holes can be provided on the cover plate 1. Thus, when the cover plate 1 is assembled on the positioning fixture 2, the positioning posts and locking holes can cooperate to achieve positioning and locking.

[0045] As can be seen from the above description, through the magnetic attraction between the first magnetic component and the second magnetic component, the cover plate 1 can achieve rapid opening and closing and automatic alignment, which simplifies the clamping operation before glue dispensing and improves production efficiency.

[0046] Please refer to Figure 1 Embodiment 1 of this utility model is: an arc-shaped module potting fixture, which, from bottom to top, includes a fixture body 4, a demolding device 3, a positioning fixture 2, and a cover plate 1. Figure 3 as well as Figure 4 As shown, the cover plate 1 is detachably mounted on the positioning fixture 2. The cover plate 1 includes a rectangular frame 11 and a grid-like support 12, with the grid-like support 12 positioned within the rectangular frame 11. The fixture body 4 includes two fixture plates arranged parallel to each other vertically, connected by support columns.

[0047] In this embodiment, as Figure 2 as well as Figure 3As shown, the demolding device 3 includes a drive mechanism, an ejector pin structure 32, and four guide rods 35. The drive mechanism includes a cylinder 31, which is mounted on the fixture body 4. The piston rod of the cylinder 31 is connected to the support plate 33 of the ejector pin structure 32, thereby driving the support plate 33 to move up and down. The ejector pin structure 32 includes the support plate 33 and multiple ejector pins 34. The support plate 33 is located between two fixture plates and is movably mounted in the vertical direction via the drive mechanism. The bottom of the ejector pin is mounted on the support plate 33, and the top of the ejector pin is used to detachably abut against the PCB board, which can be used to lift the PCB board. The guide rods 35 are located at the four corners of the fixture body 4 and extend in the vertical direction. The support plate 33 is slidably fitted onto the four guide rods 35.

[0048] In this embodiment, as Figure 2 as well as Figure 5 As shown, the positioning fixture 2 is mounted on the fixture body 4. The positioning fixture 2 has a first slot 21 for PCB board positioning and two sets of second slots 24, located on opposite sides of the first slot 21. The first slot 21 includes a first strip groove 22 and multiple first positioning holes 23. The first strip groove 22 extends along a first horizontal direction, and the multiple first positioning holes 23 are located on the first strip groove 22, with adjacent first positioning holes 23 spaced apart. Similarly, the second slots 24 include a second strip groove 25 and multiple second positioning holes 26. The second strip groove 25 extends along a first horizontal direction, and the multiple second positioning holes 26 are located on the second strip groove 25, with adjacent second positioning holes 26 spaced apart. Furthermore, the positioning fixture 2 is provided with a through hole 27 and a first magnetic chuck. Multiple ejector pins 34, with one end away from the support plate 33, pass through the through hole 27 to detachably abut against the PCB board. The cover plate 1 is provided with a second magnetic chuck corresponding to the first magnetic chuck. The magnetic structure of the first and second magnetic chucks facilitates demolding and ensures that the PCB board will not lift during the potting process. Of course, a corresponding third positioning hole 28 can also be provided on the positioning fixture 2 to further secure the PCB board.

[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A curved module potting fixture, characterized in that, The fixture includes a main body, a cover plate, and a positioning fixture. The cover plate is detachably mounted on the positioning fixture, which is mounted on the main body. The positioning fixture has a first slot for positioning a PCB board and two sets of second slots, which are symmetrically arranged on both sides of the first slot.

2. The arc-shaped module potting fixture according to claim 1, characterized in that, It also includes a demolding device, which includes a driving mechanism and an ejector pin structure. The driving mechanism is connected to the ejector pin structure, and the ejector pin structure is movably arranged in the vertical height direction through the driving mechanism. The ejector pin structure is used to lift the PCB board.

3. The arc-shaped module potting fixture according to claim 2, characterized in that, The ejector pin structure includes a support plate and a plurality of ejector pins. The support plate is movably disposed along the vertical height direction by the driving mechanism. The bottom of the ejector pin is fixed on the support plate, and the top of the ejector pin is used to detachably abut against the PCB board.

4. The arc-shaped module potting fixture according to claim 3, characterized in that, The positioning fixture has a through hole, and one end of the plurality of ejector pins away from the support plate passes through the through hole to be detachably abutted against the PCB board.

5. The arc-shaped module potting fixture according to claim 3, characterized in that, The driving mechanism includes a cylinder, which is mounted on the fixture body, and the piston rod of the cylinder is connected to the support plate.

6. The arc-shaped module potting fixture according to claim 3, characterized in that, The demolding device also includes multiple guide rods, which are disposed on the fixture body and extend along the vertical height direction. The support plate is slidably sleeved on the multiple guide rods.

7. The arc-shaped module potting fixture according to claim 1, characterized in that, The cover plate includes a rectangular frame and a grid-like support, with the grid-like support disposed within the rectangular frame.

8. The arc-shaped module potting fixture according to claim 1, characterized in that, The first slot includes a first strip groove and a plurality of first positioning holes. The first strip groove extends along a first horizontal direction, and the plurality of first positioning holes are located on the first strip groove, with adjacent first positioning holes spaced apart by a certain distance.

9. The arc-shaped module potting fixture according to claim 1, characterized in that, The second slot includes a second strip groove and a plurality of second positioning holes. The second strip groove extends along a first horizontal direction, and the plurality of second positioning holes are located on the second strip groove, with adjacent second positioning holes spaced apart by a certain distance.

10. The arc-shaped module potting fixture according to claim 1, characterized in that, The positioning fixture is provided with a first magnetic suction element, and the cover plate is provided with a second magnetic suction element corresponding to the first magnetic suction element.

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