Shaping mold and cooling device for plastic part
By combining a shaping mold and a cooling device, the problem of deformation during the cooling process of plastic parts is solved, achieving precision assurance and rapid cooling of plastic parts. It is suitable for shaping and cooling plastic parts.
Patent Information
- Application Number
- CN202520584055.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Plastic parts deform during the cooling process due to the temperature difference caused by the different cooling rates of the outer and inner layers. This is especially true for thicker plastic parts, such as the shoulder of a synchronous shaft bearing, which is prone to deformation during cooling, affecting assembly accuracy.
A shaping mold, including shaping parts and connecting rods, is used. The baffle is clamped by the first shaping plate and the second shaping plate. Combined with the cooling box and connecting mechanism in the cooling device, it is ensured that the plastic parts do not deform during the cooling process. The plastic parts are rapidly shaped and cooled using cylinders and hooks.
It effectively prevents plastic parts from deforming during the cooling process, ensuring product precision, and achieves rapid shaping of plastic parts through a rapid cooling device, avoiding deformation problems caused by stacking.
Smart Images
Figure CN223933989U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastics technology, and in particular to a molding die and cooling device for plastic parts. Background Technology
[0002] Plastic products are polymer products synthesized from plastics through addition polymerization or condensation polymerization. During the molding process, addition polymerization and condensation polymerization are two common polymerization reaction methods. They form polymer chains through the repeated addition and condensation of monomer molecules, respectively, and then form plastic in a molten state. Plastic products should not be too thick during production. If the plastic products are too thick, the outer and inner layers will cool at different rates during the cooling process. The outer layer cools faster and the inner layer cools slower. This temperature difference will lead to uneven distribution of internal stress, thereby causing deformation.
[0003] like Figure 1 The plastic part 100 shown is a synchronous shaft bearing shoulder. Because it is used for the installation of synchronous shafts, it needs to have a certain strength, which corresponds to the relatively large thickness of the plastic part 100. The plastic part 100 includes a baffle 10, which has a thickness of about 9mm. However, the thickness of a typical plastic part does not exceed 3mm. Therefore, the plastic part used as a synchronous shaft bearing shoulder is very prone to deformation, which makes it difficult to install in the subsequent assembly process. Utility Model Content
[0004] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a shaping mold for plastic parts. The plastic parts are provided with grooves, and the two sides of the grooves are baffles. Arc-shaped grooves are provided at intervals on the baffles. The shaping mold is installed on the plastic parts to shape them. The shaping mold includes a shaping component, which includes a base plate. A first shaping plate and a second shaping plate are provided opposite to each other on the base plate. A shaping groove for clamping the baffles is formed between the first shaping plate and the second shaping plate. The bottom of the shaping groove has an arc-shaped surface that abuts against the arc-shaped groove.
[0005] In this process, a shaping mold is used to shape the plastic part, and a first shaping plate and a second shaping plate are used to clamp the baffle to ensure that the plastic part does not deform when it cools, thereby improving the product's precision.
[0006] In one or more embodiments of this utility model, the shaping mold is provided in multiple ways, and each group of shaping molds is set on the plastic part with arc-shaped grooves as positioning intervals.
[0007] In one or more embodiments of this utility model, the shaping mold is provided with a plurality of shaping components, the shaping components along a first direction are connected by a first connecting rod, and the first connecting rods are connected to each other by a second connecting rod.
[0008] One molding die can be equipped with multiple molding parts, which are connected by connecting rods to ensure the stability of the molding die and the precision of the plastic parts during cooling.
[0009] Another aspect of the present invention provides a cooling device for plastic parts, including the above-mentioned shaping mold for plastic parts, and a mounting frame. A cooling tank for holding coolant is installed inside the mounting frame. The cooling tank is a box without a top cover. A connecting mechanism is also installed on the inner top wall of the mounting frame for connecting the plastic parts.
[0010] In one or more embodiments of this utility model, the mounting frame is provided with multiple sets of connecting mechanisms at intervals, each set of connecting mechanisms is connected to a plastic part, and a shaping mold is connected to the plastic part.
[0011] In one or more embodiments of this utility model, the connecting mechanism includes a cylinder, the end of the cylinder is provided with a hook, and one end of the plastic part is provided with a hanging ring connected to the hook.
[0012] In one or more embodiments of this utility model, the mounting bracket is further equipped with a storage box for placing plastic parts.
[0013] In one or more embodiments of this utility model, when the movable end of the cylinder moves to the furthest distance from the fixed end of the cylinder, the top of the shaping mold hanging on the hook is below the liquid level of the coolant in the cooling tank.
[0014] The beneficial effects of this utility model are: the shaping mold in this utility model includes multiple connected shaping parts. When the shaping mold is installed on the plastic part, it can ensure that the plastic part does not deform when it is cooled, thereby ensuring the dimensional accuracy of the plastic part.
[0015] This utility model also includes a cooling device for rapid cooling and shaping of plastic parts. By hanging plastic parts at intervals on the mounting frame, the plastic parts can be rapidly shaped and cooled in the cooling box, which also avoids the problem of deformation caused by the plastic parts being squeezed against each other when they are stacked for cooling. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall plastic part in one embodiment of the present invention;
[0017] Figure 2 This is a schematic diagram of the overall shape mold for plastic parts in one embodiment of the present invention;
[0018] Figure 3 This is a bottom view of a plastic part used in the mating of a molding die in one embodiment of the present invention;
[0019] Figure 4This is a front view of a plastic part used in the mating of a molding die in one embodiment of the present invention;
[0020] Figure 5 This is an overall schematic diagram of a cooling device for plastic parts in one embodiment of the present invention;
[0021] Figure 6 This is a front view of a cooling device for plastic parts according to an embodiment of the present invention;
[0022] Figure 7 This is a right view of a cooling device for plastic parts according to an embodiment of the present invention.
[0023] In the picture:
[0024] Plastic parts, 100;
[0025] 10 baffle, 11 arc groove, 12 recess, 13 hanging ring;
[0026] 200 mold pieces;
[0027] Shaping component 20, substrate 201, first shaping plate 202, second shaping plate 203, shaping groove 204
[0028] Cooling device 300;
[0029] First connecting rod 21, second connecting rod 22
[0030] Mounting bracket 30, connecting mechanism 31, cylinder 311, hook 312, cooling box 32, storage box 33. Detailed Implementation
[0031] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0032] In the description of this utility model, it should be understood that the terms "vertical", "horizontal", "top", "bottom", "upper", "lower", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] It should be noted that, unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0034] As described in the background section, see Appendix Figure 1 As shown, the plastic part 100 in the prior art is a synchronous shaft bearing shoulder in this embodiment. Since it is used for the installation of synchronous shaft, it needs to have a certain strength. In this embodiment, the plastic part 100 has a groove 12 in the middle position, and baffles 10 are on both sides of the groove 12. The baffles 10 have arc grooves 12 along the first direction. Due to the needs of subsequent assembly, the thickness of the baffles 10 is about 9mm, and a certain assembly accuracy needs to be ensured. However, if the thickness is too large, the plastic part 100 will deform when cooled, thus affecting the accuracy of the synchronous shaft bearing shoulder.
[0035] For the above issues, please refer to the appendix. Figures 2-3 As shown, this utility model provides a shaping mold for plastic parts, including a shaping component 20. The shaping component 20 includes a base plate 201. A first shaping plate 202 and a second shaping plate 203 are disposed opposite to each other on the base plate 201. A shaping groove 204 for clamping a baffle 10 is formed between the first shaping plate 202 and the second shaping plate 203. The bottom of the shaping groove 204 has an arc-shaped surface that abuts against the arc-shaped groove 11. In this embodiment, the shaping groove 204 clamps the baffle 10 along the third direction Z by the first shaping plate 202 and the second shaping plate 203 on both sides, ensuring that the baffle 10 will not deform during cooling. The bottom of the adaptable shaping groove 204 has an arc-shaped surface that protrudes outward from the groove, thereby limiting the arc-shaped groove 12 on the baffle 10.
[0036] In this embodiment, as Figure 2 As shown, the shaping mold 200 is provided with multiple shaping parts 20. The shaping parts 20 along the first direction X are connected by a first connecting rod 21. The first connecting rods 21 are connected to each other by a second connecting rod 22. The first connecting rods 21 and the second connecting rod 22 enable the shaping mold 200 to have a certain structural strength, thereby ensuring that the shaping mold 200 does not deform during cooling.
[0037] In this embodiment, as Figure 4 As shown, based on the number of arc grooves 12 on the plastic part 100, multiple shaping molds 200 are provided. Each group of shaping molds 200 is set on the plastic part 100 with the arc grooves 11 as the positioning interval. In this embodiment, each plastic part 100 requires two shaping molds 200, and each group of shaping molds 200 has 4 shaping parts 20.
[0038] like Figure 5-7 As shown, this utility model also provides a cooling device for plastic parts, including the above-mentioned shaping mold 200. The cooling device 300 includes a mounting frame 30, and a cooling tank 32 for holding coolant is installed inside the mounting frame 30. The cooling tank 32 is a box without a top cover. A connecting mechanism 31 is also installed on the top wall inside the mounting frame 30. The connecting mechanism 31 is used to connect the plastic part 100 to ensure that the entire plastic part 100 is completely immersed in the coolant during cooling.
[0039] In a further embodiment, the mounting frame 300 is provided with multiple sets of connecting mechanisms 31 at intervals, each set of connecting mechanisms 31 is connected to a plastic part 100, and a shaping mold 200 is connected to the plastic part 100. In this embodiment, the mounting frame 300 is equipped with 12 sets of connecting mechanisms 31 in two rows and six columns. The cooling device in this embodiment can complete the cooling and shaping of 12 plastic parts 100 at one time.
[0040] In a further embodiment, the connecting mechanism 31 includes a cylinder 311, with a hook 312 at one end of the cylinder 311. One end of the plastic part 100 is provided with a hanging ring 13 connected to the hook 312. The cooling and retraction of the plastic part 100 are accomplished by the extension and retraction of the cylinder 311. The cooled plastic part 100 is placed in the storage box 33 on the mounting frame 300. To ensure that the entire plastic part 100 can be completely cooled during cooling, when the movable end of the cylinder 311 moves to the farthest distance from the fixed end of the cylinder 311, the shaping mold 200 hooked on the hook 312 is located inside the cooling box 32, which is filled with coolant.
[0041] After the plastic part 100 is melted and cast, the shaping mold 200 is installed on the plastic part 100 to ensure that the baffle 10 on the plastic part 100 is in the shaping groove 204 and the arc surface in the shaping groove 204 is in contact with the arc groove 11 on the plastic part. After the snap-fit is completed, the plastic part 100 is hung on the hook 312, and the cylinder 311 is started to cool the plastic part 100 in the cooling box 32 and then return it to the storage box 33.
[0042] The shaping mold 200 in this utility model includes multiple connected shaping parts 20. When the shaping mold 200 is installed on the plastic part 100, it can ensure that the plastic part 100 does not deform when it is cooled, thereby ensuring the dimensional accuracy of the plastic part 100.
[0043] This utility model also includes a cooling device 300 for rapid cooling and shaping of plastic parts 100. By hanging plastic parts 100 at intervals on the mounting frame 30, the plastic parts 100 can be rapidly shaped and cooled in the cooling box, which also avoids the problem of deformation caused by mutual compression of plastic parts 100 when they are stacked for cooling.
[0044] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.
Claims
1. A shaping mold for a plastic part, wherein the plastic part (100) has a groove (12), the two sides of the groove (12) are baffles (10), and the baffles (10) are provided with arc-shaped grooves (11) at intervals, and the shaping mold (200) is mounted on the plastic part (100) to shape the plastic part (100), characterized in that: The shaping mold (200) includes a shaping component (20), the shaping component (20) includes a base plate (201), a first shaping plate (202) and a second shaping plate (203) are provided opposite to each other on the base plate (201), a shaping groove (204) for clamping the baffle (10) is formed between the first shaping plate (202) and the second shaping plate (203), and the bottom of the shaping groove (204) has an arc-shaped surface that abuts against the arc-shaped groove (11).
2. The molding die for plastic parts according to claim 1, characterized in that, The shaping mold (200) is provided in multiple sets, and each set of shaping molds (200) is set on the plastic part (100) with the arc groove (11) as the positioning interval.
3. A shaping mold for plastic parts according to claim 2, characterized in that, The shaping mold (200) is provided with a plurality of shaping parts (20), the shaping parts (20) along the first direction are connected by a first connecting rod (21), and the first connecting rods (21) are connected to each other by a second connecting rod (22).
4. A cooling device for plastic parts, comprising a shaping mold as described in any one of claims 1 to 3, characterized in that, It also includes a mounting bracket (30), in which a cooling tank (32) for holding coolant is installed. The cooling tank (32) is a box without a top cover. A connecting mechanism (31) is also installed on the top wall of the mounting bracket (30). The connecting mechanism (31) is used to connect plastic parts (100).
5. A cooling device for plastic parts according to claim 4, characterized in that, The mounting bracket (30) is provided with multiple sets of connecting mechanisms (31) at intervals. Each set of connecting mechanisms (31) is connected to a plastic part (100), and a shaping mold (200) is connected to the plastic part (100).
6. A cooling device for plastic parts according to claim 5, characterized in that, The connecting mechanism (31) includes a cylinder (311), the end of which is provided with a hook (312), and one end of the plastic part (100) is provided with a hanging ring (13) connected to the hook (312).
7. A cooling device for plastic parts according to claim 4, characterized in that, The mounting bracket (30) is also equipped with a storage box (33) for placing plastic parts (100).
8. A cooling device for plastic parts according to claim 6, characterized in that, When the movable end of the cylinder (311) moves to the farthest distance from the fixed end of the cylinder (311), the top of the shaping mold (200) hanging on the hook (312) is below the surface of the coolant in the cooling box (32).