A tray fixture for injection molded products
By designing a tray fixture for injection molded products, the problems of low efficiency and insufficient stability in the coating process were solved, achieving efficient and uniform coating effects and improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 华天慧创科技(西安)有限公司
- Filing Date
- 2025-01-24
- Publication Date
- 2026-05-29
AI Technical Summary
Existing technologies for coating treatment of injection molded products suffer from problems such as low production efficiency, high risk of appearance damage, and insufficient transportation stability.
Design a tray fixture for injection molded products, including a top cover, a base, and a positioning plate assembly. Through the cooperation of positioning rods, slots, and fixing holes, ensure the precise positioning and stable connection of injection molded products during the coating process, provide a stable placement environment, and facilitate the coating treatment of the outer surface.
It improves coating quality and production efficiency, reduces processing errors and product damage risks, enhances transportation stability, and ensures coating uniformity and consistency.
Smart Images

Figure CN224296341U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding product assembly technology, specifically a tray fixture for injection molding products. Background Technology
[0002] In current technologies, to meet the high-performance requirements of specific products, such as increasing transmittance and surface hydrophobicity, it is usually necessary to apply a coating to the inner and outer surfaces of the product. This coating technology can not only improve the functionality of the product, but also enhance its durability and aesthetics to a certain extent. However, in actual production processes, existing technologies face multiple challenges.
[0003] First, because the inner and outer surfaces of the product need to be coated on different tooling, this process increases the number of clamping operations. Frequent clamping not only reduces production efficiency and increases production costs, but also increases the risk of product damage during processing. This damage may manifest as scratches, dents, or other forms of appearance defects, further affecting the product's market competitiveness.
[0004] Furthermore, existing adhesive film bonding solutions have revealed insufficient stability during transportation. Due to weak adhesion or factors such as vibration, products can easily detach from the adhesive film, leading to quality defects. This not only increases the risk of product damage but may also cause additional economic losses and reputational damage to manufacturers.
[0005] In summary, existing technologies for product coating processes suffer from multiple problems, including low production efficiency, high risk of surface damage, and insufficient transport stability. Therefore, there is an urgent need for a new technology that can overcome these shortcomings and improve product quality and production efficiency. Utility Model Content
[0006] In order to overcome the defects of the prior art, the purpose of this utility model is to provide a tray fixture for injection molded products, so as to solve the technical problems of unstable coating and low efficiency of injection molded products in the prior art.
[0007] This utility model is achieved through the following technical solution:
[0008] A tray fixture for injection molded products includes a top cover, a base, and a positioning plate assembly;
[0009] The base is placed on the positioning plate assembly, and the base has a plurality of second through holes, in which injection molded products are placed respectively.
[0010] The top cover is positioned on the base by a positioning plate assembly, and the top cover is provided with a plurality of first through holes, the positions of which correspond to the positions of second through holes. The injection molded product is inside the first through holes, and the outer surface of the injection molded product extends to the outside of the first through holes for outer surface coating.
[0011] Preferably, the diameter of the first through hole is smaller than that of the second through hole, and is used to snap onto the injection molded product when the injection molded product is flipped for coating.
[0012] Preferably, the base is also provided with several fixing holes, and the side of the top cover facing the base is provided with several fixing shafts, which are correspondingly inserted into the several fixing holes.
[0013] Preferably, the positioning plate assembly includes a positioning plate, and the edge of the positioning plate is provided with a plurality of positioning rods; the base is placed on the positioning plate by the plurality of positioning rods, and the upper cover is snapped between the plurality of positioning rods.
[0014] Furthermore, the base has a positioning hole corresponding to the position of the positioning rod, and the base is placed on the positioning plate by inserting the positioning rod into the positioning hole.
[0015] Preferably, the diameter of the positioning hole is set to correspond to the diameter of the positioning rod.
[0016] Furthermore, a slot is provided on the edge of the top cover corresponding to the positioning rod, and the positioning rod is engaged in the slot.
[0017] Furthermore, the slot is a semi-circular arc slot, and the rod body of the positioning rod abuts against the semi-circular arc slot.
[0018] Preferably, the positioning rod is a vertical rod.
[0019] Preferably, the outer surface of the injection molded product is cylindrical, and the outer sidewall of the injection molded product is inclined along the direction from the second through hole to the first through hole, and a gap is provided between it and the inner sidewall of the first through hole.
[0020] Compared with the prior art, the present invention has the following beneficial technical effects:
[0021] This invention provides a tray fixture for injection-molded products. Through its structure, which includes a top cover, a base, and a positioning plate assembly, it ensures precise positioning of the injection-molded product during processing. The fit between the top cover and the base, and their secure connection via the positioning plate assembly, provides a stable and accurate placement environment for the injection-molded product, helping to reduce processing errors and improve product quality. Several first through holes on the top cover correspond to second through holes on the base, allowing the outer surface of the injection-molded product to be easily exposed for surface coating treatment. Simultaneously, because the injection-molded product is stably fixed in the tray fixture, the coating process can be carried out more efficiently and uniformly, improving coating quality and production efficiency.
[0022] Furthermore, when the injection-molded product is placed on the tray fixture, the smaller diameter of the first through hole can tightly surround a portion of the injection-molded product, thereby providing additional stability when the fixture is flipped for coating, helping to prevent uneven coating or damage to the injection-molded product due to shaking or misalignment during the coating process.
[0023] Furthermore, the combination of the fixed shaft and the fixed hole forms a more stable connection between the top cover and the base, which not only enhances the overall structural stability of the tray fixture, but also helps to prevent the fixture from deforming or being damaged due to improper operation or external factors during the coating process.
[0024] Furthermore, the positioning rods provide a clear positioning reference for the base and the top cover. By ensuring that the base is accurately placed on the positioning rods and that the top cover is correctly engaged between the positioning rods, the positioning accuracy of the tray fixture can be greatly improved. This helps to maintain the precise position of the injection-molded product during the coating process, thereby ensuring coating quality and product consistency.
[0025] Furthermore, the cooperation between the positioning rod and the positioning hole provides a precise and stable positioning method for the base, ensuring that the base can be accurately aligned with the positioning plate when placed, thereby avoiding problems such as uneven coating or product damage caused by positional deviation. At the same time, the fixing structure formed after the positioning rod is inserted into the positioning hole also helps to prevent the base from moving or tilting during the coating process.
[0026] Furthermore, when the diameter of the positioning hole precisely corresponds to the diameter of the positioning rod, the two can form a tight interlocking fit, ensuring that the base can be placed stably on the positioning plate, preventing the base from moving or tilting due to improper operation or external factors during the coating process.
[0027] Furthermore, the combination of the slot and the positioning rod creates a more stable connection structure between the top cover and the base, enhancing the overall stability of the tray fixture and preventing the top cover from moving or tilting due to improper operation or external factors during the coating process.
[0028] Furthermore, the precise shape of the semi-circular groove and its fit with the positioning rod ensure that the top cover is accurately aligned with the base during assembly. Because the curvature of the groove matches the diameter of the positioning rod, high-precision positioning is achieved, helping to maintain the consistency and uniformity of the coating.
[0029] Furthermore, the alignment of the vertical rod's positioning rod with the semi-circular groove simplifies the assembly and disassembly process of the pallet fixture. Operators simply need to align the vertical rod's positioning rod with the semi-circular groove and gently push or pull it in or out vertically to quickly connect or disconnect the top cover from the base. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the overall structure of the tray fixture in the embodiments of this utility model;
[0031] Figure 2 This is a top view of the tray fixture in an embodiment of this utility model;
[0032] Figure 3 for Figure 2 Sectional view at point AA;
[0033] Figure 4 for Figure 3 Enlarged view of section B;
[0034] In the diagram: 1. Top cover; 2. Base; 3. Positioning plate; 4. Injection molded product; 11. First through hole; 12. Slot; 13. Fixed shaft; 21. Second through hole; 22. Fixed hole; 31. Positioning rod. Detailed Implementation
[0035] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, products, or devices.
[0037] The purpose of this utility model is to provide a tray fixture for injection molded products, so as to solve the technical problems of unstable coating and low efficiency of injection molded products in the prior art.
[0038] The present invention will now be described in further detail with reference to the accompanying drawings:
[0039] See Figure 1 and Figure 2 In one embodiment of this utility model, a tray fixture for injection-molded products is provided, including an upper cover 1, a base 2, and a positioning plate assembly. The base 2 is placed on the positioning plate assembly, and the base 2 has a plurality of second through holes 21, in which injection-molded products 4 are placed. The upper cover 1 is positioned on the base 2 by the positioning plate assembly, and the upper cover 1 has a plurality of first through holes 11, the positions of which correspond to the positions of the second through holes 21. The injection-molded product 4 is placed in the first through holes 11, and the outer surface of the injection-molded product 4 extends to the outside of the first through holes 11 for outer surface coating.
[0040] Specifically, the diameter of the first through hole 11 is smaller than that of the second through hole 21, and it is used to snap onto the injection molded product 4 when the injection molded product 4 is flipped and coated.
[0041] In this embodiment, when it is necessary to coat the other side of the injection molded product 4, it can be achieved by flipping the coating equipment or manually flipping the injection molded product. During the flipping process, the diameter of the first through hole 11 is smaller than the middle section of the injection molded product 4, which allows the first through hole to be engaged with the injection molded product, preventing it from falling off or moving during the flipping process.
[0042] Meanwhile, the larger diameter of the second through hole 21 provides sufficient space for the flipping process, avoiding the problems of flipping difficulties or damage to the injection molded product caused by the hole being too small.
[0043] Specifically, according to Figure 3 and Figure 4As shown, the base 2 is also provided with a number of fixing holes 22, and the upper cover 1 is provided with a number of fixing shafts 13 on the side facing the base 2, and the number of fixing shafts 13 are correspondingly inserted into the number of fixing holes 22.
[0044] In this embodiment, during assembly, the upper cover 1 and the base 2 are first aligned to ensure that the fixed shaft 13 and the fixed hole 22 are in the same position.
[0045] Then, the fixing shafts 13 are inserted one by one into the corresponding fixing holes 22 until all fixing shafts are fully inserted into the fixing holes. During this process, the cooperation between the fixing shafts 13 and the fixing holes 22 plays a role in positioning and fixing, ensuring the relative position between the upper cover 1 and the base 2 is stable.
[0046] Specifically, the positioning plate assembly includes a positioning plate 3, and the edge of the positioning plate 3 is provided with a plurality of positioning rods 31; the base 2 is placed on the positioning plate 3 by the plurality of positioning rods 31, and the upper cover 1 is snapped between the plurality of positioning rods 31.
[0047] The base 2 has a positioning hole corresponding to the position of the positioning rod 31, and the base 2 is placed on the positioning plate 3 by inserting the positioning rod 31 into the positioning hole.
[0048] The diameter of the positioning hole is set to correspond to the diameter of the positioning rod 31.
[0049] In this embodiment, the positioning hole on the base 2 is aligned with the positioning rod 31 on the positioning plate 3.
[0050] Place the base on the positioning plate and insert the positioning rod into the positioning hole. Because the diameter of the positioning hole corresponds to the diameter of the positioning rod, the base can be stably fixed on the positioning plate.
[0051] Align the top cover 1 with the base 2 that has been placed on the positioning plate.
[0052] The cover is snapped into place between the positioning rods 31 using a snap-fit mechanism. In this way, the cover, base, and positioning plate form a stable, integrated structure.
[0053] Specifically, the edge of the upper cover 1 is provided with a slot 12 corresponding to the positioning rod 31, and the positioning rod 31 is engaged in the slot 12.
[0054] Among them, the slot 12 is a semi-circular arc slot, and the rod body of the positioning rod 31 abuts against the semi-circular arc slot.
[0055] In this embodiment, the base 2 is placed on the positioning plate 3, and the initial positioning of the base is achieved by aligning and inserting the positioning rod 31 with the positioning hole.
[0056] Next, place the top cover 1 on top of the positioning plate 3, which already has the base installed, so that the slot 12 of the top cover is aligned with the positioning rod 31. As the top cover 1 descends and approaches the positioning plate 3, the semi-circular shape of the slot 12 begins to contact the rod body of the positioning rod 31.
[0057] As the top cover 1 descends further, the slot 12 gradually encloses the rod body of the positioning rod 31 until the positioning rod is completely locked in the slot.
[0058] During this process, the semi-circular shape of the slot 12 provides sufficient containment and guidance, allowing the positioning rod to be smoothly and securely engaged in the slot.
[0059] In this embodiment, the positioning rod 31 is a vertical rod. The cooperation between the positioning rod of the vertical rod and the semi-circular arc groove simplifies the assembly and disassembly process of the pallet fixture. The operator only needs to align the positioning rod of the vertical rod with the semi-circular arc groove and gently push it in or pull it out along the vertical direction to achieve quick connection or disassembly of the top cover and the base.
[0060] Specifically, the outer surface of the injection molded product 4 is cylindrical, and the outer sidewall of the injection molded product 4 is inclined along the direction from the second through hole 21 to the first through hole 11, and a gap is provided between it and the inner sidewall of the first through hole 11.
[0061] The pallet fixture for injection molded products provided in this embodiment is used as follows:
[0062] First, align the positioning hole on the base 2 with the positioning rod 31 on the positioning plate 3. Then, place the base 2 on the positioning plate 3, inserting the positioning rod 31 into the positioning hole. Because the diameter of the positioning hole and the diameter of the positioning rod 31 are correspondingly set, the base 2 can be stably fixed on the positioning plate 3.
[0063] Next, place the injection-molded product 4 into the second through hole 21 of the base 2. Then, align the top cover 1 with the base 2 already placed on the positioning plate 3, ensuring that the fixing shaft 13 on the top cover 1 is aligned with the fixing hole 22 on the base 2. At the same time, ensure that the slot 12 of the top cover 1 is aligned with the positioning rod 31. Finally, lower the top cover 1 so that the fixing shaft 13 is inserted into the fixing hole 22, and the slot 12 encloses the rod body of the positioning rod 31, forming a stable overall structure.
[0064] After assembly, a portion of the outer surface of the injection-molded product 4 (the inclined portion of the non-cylindrical outer wall) will extend to the outside of the first through hole 11. This portion of the outer surface is the area prepared for coating.
[0065] Since the diameter of the first through hole 11 is smaller than the diameter of the second through hole 21, and smaller than the diameter of the middle section of the injection molded product 4 (i.e., a section of the diameter of the outer wall of the cylinder), the first through hole 11 can be locked onto the injection molded product 4 during the flipping coating process, preventing it from falling off or moving during the flipping process.
[0066] When it is necessary to coat the other side of the injection molded product 4, it can be done by flipping the coating equipment or by manually flipping the entire pallet fixture (including the top cover 1, the base 2 and the positioning plate 3).
[0067] During the flipping process, the larger diameter of the second through hole 21 provides sufficient space for flipping, avoiding the problems of flipping difficulties or damage to the injection molded product caused by the hole being too small.
[0068] Meanwhile, the snap-fit function of the first through hole 11 ensures the stability and positional accuracy of the injection molded product 4 during the flipping process.
[0069] In summary, the tray fixture for injection-molded products provided by this utility model, through its structure comprising a top cover, a base, and a positioning plate assembly, ensures precise positioning of the injection-molded product during processing. The cooperation between the top cover and the base, and their secure connection via the positioning plate assembly, provides a stable and accurate placement environment for the injection-molded product, helping to reduce processing errors and improve product quality. The several first through holes on the top cover correspond to the second through holes on the base, allowing the outer surface of the injection-molded product to be easily exposed for surface coating treatment. Simultaneously, because the injection-molded product is stably fixed in the tray fixture, the coating process can be carried out more efficiently and uniformly, improving coating quality and production efficiency.
[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.
Claims
1. A tray fixture for injection-molded products, characterized in that, Includes a top cover (1), a base (2), and a positioning plate assembly; The base (2) is placed on the positioning plate assembly. The base (2) has several second through holes (21) and the injection molded product (4) is placed in each of the several second through holes (21). The upper cover (1) is positioned on the base (2) by the positioning plate assembly, and the upper cover (1) is provided with a plurality of first through holes (11). The positions of the plurality of first through holes (11) correspond to the positions of the second through holes (21). The injection molded product (4) is inside the first through holes (11), and the outer surface of the injection molded product (4) extends to the outside of the first through holes (11) for outer surface coating. The positioning plate assembly includes a positioning plate (3), and the edge of the positioning plate (3) is provided with a plurality of positioning rods (31); the base (2) is placed on the positioning plate (3) by a plurality of positioning rods (31), and the upper cover (1) is snapped between the plurality of positioning rods (31).
2. A tray fixture for injection molded products according to claim 1, characterized in that, The diameter of the first through hole (11) is smaller than that of the second through hole (21), and it is used to snap onto the injection molded product (4) when the injection molded product (4) is flipped and coated.
3. A tray fixture for injection molded products according to claim 1, characterized in that, The base (2) is also provided with several fixing holes (22), and the top cover (1) is provided with several fixing shafts (13) on the side facing the base (2), and the several fixing shafts (13) are inserted into the several fixing holes (22).
4. A pallet fixture for injection-molded products according to claim 1, characterized in that, The base (2) has a positioning hole at the position corresponding to the positioning rod (31), and the base (2) is placed on the positioning plate (3) by inserting the positioning rod (31) into the positioning hole.
5. A tray fixture for injection molded products according to claim 4, characterized in that, The diameter of the positioning hole is set to correspond to the diameter of the positioning rod (31).
6. A pallet fixture for injection molded products according to claim 1, characterized in that, The edge of the cover (1) is provided with a slot (12) corresponding to the positioning rod (31), and the positioning rod (31) is engaged in the slot (12).
7. A pallet fixture for injection-molded products according to claim 6, characterized in that, The slot (12) is a semi-circular arc slot, and the rod body of the positioning rod (31) abuts against the semi-circular arc slot.
8. A pallet fixture for injection molded products according to claim 7, characterized in that, The positioning rod (31) is a vertical rod.
9. A pallet fixture for injection molded products according to claim 1, characterized in that, The outer surface of the injection molded product (4) is cylindrical. The outer sidewall of the injection molded product (4) is inclined along the direction from the second through hole (21) to the first through hole (11), and there is a gap between it and the inner sidewall of the first through hole (11).