In-mold shaping device for automobile plastic part
By designing an in-mold forming device for automotive plastic parts, a screw and limiting components are used to tightly press the product, and a cooling component is used to maintain the product shape. This solves the deformation problem caused by product cooling and molding during transportation, and achieves efficient restoration and resource saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO JIAMIN ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-28
AI Technical Summary
During transportation, the product cools and solidifies naturally, which can lead to poor restoration by the fixture, potentially damaging the product, resulting in poor restoration and economic losses.
An in-mold forming device for automotive plastic parts was designed, comprising a top plate, a positioning component, a fixture, a pressing plate, and a cooling component. The pressing plate is driven to move downward by a screw, and combined with a limiting component and a spring structure, tight pressing is achieved, while the cooling component maintains the product shape.
It effectively maintains the product's shape after cooling, reduces deformation and economic losses, improves recovery effect, and reduces resource waste.
Smart Images

Figure CN224170266U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive plastic parts, specifically an in-mold forming device for automotive plastic parts. Background Technology
[0002] After injection molding, automotive products may deform during the cooling process. Some minor deformations may cause problems for later use or even render the product unusable. In such cases, a jig is needed to press the product back to its original shape.
[0003] However, when pressing and restoring a product in this way, the product needs to be removed from the mold, placed under a jig, and then pressed. But during transportation, the product has already cooled and solidified naturally. This means that when pressing the product with the jig, it may still be restored, and damage may occur, resulting in poor restoration effect. It may even render the product unusable, causing economic losses. Utility Model Content
[0004] To overcome the shortcomings of existing technologies and solve the problem that products naturally cool and solidify during transportation, which leads to product reversion when pressed by a fixture, potentially causing damage, poor reversion results, and even rendering the product unusable, resulting in economic losses, this utility model proposes an in-mold forming device for automotive plastic parts.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The automotive plastic part in-mold forming device of this utility model includes a top plate, a positioning component is provided on the outer side of the top plate, the positioning component includes two connecting rods fixedly connected to the bottom of the top plate, a fixture is slidably connected to the outer side of the connecting rods, a pressing plate is slidably connected to the outer side of the connecting rods, an insertion rod is fixedly connected to the bottom of the top plate, a screw is threadedly connected to the inside of the top plate, the bottom of the screw is rotatably connected to the top of the pressing plate, and a knob is fixedly connected to the top of the screw.
[0006] Preferably, a cooling assembly is provided on the outside of the fixture. The cooling assembly includes a transmission hose fixedly connected to the inside of the fixture. Supporting metal pipes are fixedly connected to both ends of the transmission hose. A connecting pipe is fixedly connected to the outside of the supporting metal pipe, and the inside of the connecting pipe communicates with the inside of the supporting metal pipe.
[0007] Preferably, a pressing assembly is provided on the outer side of the connecting rod and the outer side of the supporting metal tube. The pressing assembly includes a limiting plate fixedly connected to the outer side of the supporting metal tube and the connecting rod. A first spring is sleeved on the outer side of both the connecting rod and the supporting metal tube. The first spring is fixedly connected between the bottom of the pressing plate and the top of the fixture.
[0008] Preferably, a limiting component is provided at the bottom of the top plate. The limiting component includes an insertion tube fixedly connected to the bottom of the top plate, and a triangular retraction component is slidably connected inside the insertion tube, the triangular retraction component penetrating the insertion tube.
[0009] Preferably, the limiting component further includes a mounting frame fixedly connected to the inside of the insertion tube, and a second spring is fixedly connected between the outer side of the triangular retraction member and the inside of the mounting frame.
[0010] Preferably, the supporting metal tube passes through the pressing plate and is slidably connected, and the outer side of the supporting metal tube is slidably connected to the inside of the top plate.
[0011] Preferably, the triangular recycling component passes through the mounting frame and is slidably connected.
[0012] The advantages of this utility model are:
[0013] 1. This utility model uses a knob to rotate a screw, which in turn moves a pressing plate downwards, thereby pressing the pressing assembly. This causes the fixture to move, allowing the fixture to press the product more tightly, so that the product can maintain its shape after cooling, thus reducing the possibility of product deformation and minimizing the occurrence of unusable products, thereby reducing economic losses.
[0014] 2. This utility model inserts the insertion tube into the corresponding position of the lower mold, and then the lower mold presses the triangular retractor, thereby compressing the second spring. When the triangular retractor moves to the bottom of the lower mold, the second spring will drive the triangular retractor to return to its original position, so that the triangular retractor cannot leave the bottom of the lower mold, thereby restricting the position of the top plate. When the screw rotates and drives the fixture to move down, it can work with the triangular retractor to form a counter-pulling force, thereby making the fixture press the product more tightly. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall top view structure in Embodiment 1;
[0017] Figure 2 This is a schematic diagram of the overall side view structure in Embodiment 1;
[0018] Figure 3This is a schematic diagram of the internal component breakdown structure in Embodiment 1;
[0019] Figure 4 This is a side view diagram of some components in Embodiment 1;
[0020] Figure 5 This is a schematic diagram of the partial component disassembly structure in Example 2.
[0021] In the diagram: 1. Top plate; 2. Screw; 3. Knob; 4. Pressing plate; 5. Connecting rod; 6. Limiting plate; 7. Fixture; 8. First spring; 9. Insertion rod; 10. Transmission hose; 11. Supporting metal tube; 12. Connecting tube; 13. Insertion tube; 14. Mounting frame; 15. Triangular retraction component; 16. Second spring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1
[0024] Please see Figure 1-4 As shown, an in-mold forming device for automotive plastic parts includes a top plate 1. A positioning assembly is provided on the outer side of the top plate 1. The positioning assembly includes two connecting rods 5 fixedly connected to the bottom of the top plate 1. A fixture 7 is slidably connected to the outer side of the connecting rods 5. A pressing plate 4 is slidably connected to the outer side of the connecting rods 5. An insertion rod 9 is fixedly connected to the bottom of the top plate 1. A screw 2 is threadedly connected inside the top plate 1. The bottom of the screw 2 is rotatably connected to the top of the pressing plate 4. A knob 3 is fixedly connected to the top of the screw 2.
[0025] During operation, the upper mold is first removed, then the top plate 1 is lifted, and the insertion rod 9 is inserted into the corresponding hole in the lower mold. The pressure is then continued downwards to allow the pressing plate 4 and fixture 7 to enter the lower mold, thus pressing the product inside. Then, the knob 3 is turned to rotate the screw 2, causing the pressing plate 4 to move downwards and press the pressing assembly. This moves the fixture 7, allowing it to press the product more tightly, ensuring the product retains its shape after cooling. This reduces the possibility of product deformation and minimizes the occurrence of unusable products, thereby reducing economic losses.
[0026] The fixture 7 is provided with a cooling assembly on its outer side. The cooling assembly includes a transmission hose 10 fixedly connected to the inside of the fixture 7. Supporting metal pipes 11 are fixedly connected to both ends of the transmission hose 10. A connecting pipe 12 is fixedly connected to the outside of the supporting metal pipe 11. The inside of the connecting pipe 12 is connected to the inside of the supporting metal pipe 11.
[0027] During operation, coolant is transferred through one of the connecting pipes 12 to the inside of the supporting metal pipe 11, thereby transferring the coolant to the inside of the transfer hose 10, which cools the jig 7 and then the product. This allows the product to cool and set quickly when it is being pressed. After cooling is complete, the coolant can be transferred through another supporting metal pipe 11 to the inside of the second connecting pipe 12, so that the coolant can be recycled and reused, thereby reducing resource waste.
[0028] Among them, a pressing component is provided on the outside of the connecting rod 5 and the outside of the supporting metal tube 11. The pressing component includes a limiting plate 6 fixedly connected to the outside of the supporting metal tube 11 and the connecting rod 5. A first spring 8 is sleeved on the outside of the connecting rod 5 and the supporting metal tube 11. The first spring 8 is fixedly connected between the bottom of the pressing plate 4 and the top of the fixture 7.
[0029] During operation, the movement range of the pressing plate 4 is limited by the limiting plate 6, and the movement of the pressing plate 4 is used to press the first spring 8, thereby transmitting the pressing force to the fixture 7, so that the product can be pressed. The rebound force of the first spring 8 can make the fixture 7 and the product fit more tightly.
[0030] The supporting metal tube 11 passes through the pressing plate 4 and is slidably connected, and the outer side of the supporting metal tube 11 is slidably connected to the inside of the top plate 1.
[0031] During operation, the pressing plate 4 is slidably connected to the supporting metal tube 11, allowing the pressing plate 4 to move. The sliding connection between the supporting metal tube 11 and the top plate 1 ensures that the fixture 7 moves without obstruction.
[0032] Example 2
[0033] Please see Figure 5 As shown in the first embodiment, as another implementation of this utility model, a limiting component is provided at the bottom of the top plate 1. The limiting component includes an insertion tube 13 fixedly connected to the bottom of the top plate 1. A triangular retraction component 15 is slidably connected inside the insertion tube 13, and the triangular retraction component 15 penetrates the insertion tube 13.
[0034] The limiting component also includes a mounting frame 14 fixedly connected inside the insertion tube 13, and a second spring 16 is fixedly connected between the outer side of the triangular retraction component 15 and the inside of the mounting frame 14.
[0035] During operation, the insertion tube 13 is inserted into the corresponding position of the lower mold. The lower mold then presses the triangular retractor 15, thereby compressing the second spring 16. When the triangular retractor 15 moves to the bottom of the lower mold, the second spring 16 will drive the triangular retractor 15 to return to its original position, thus preventing the triangular retractor 15 from leaving the bottom of the lower mold and thus restricting the position of the top plate 1. When the screw 2 rotates and drives the fixture 7 to move down, it can work with the triangular retractor 15 to form a counter-pulling force, thereby making the fixture 7 press the product more tightly.
[0036] The triangular recycling component 15 passes through the mounting frame 14 and is slidably connected.
[0037] During operation, the device can be installed and disassembled by pressing the triangular retraction component 15.
[0038] The working principle is as follows: First, the upper mold is removed, then the top plate 1 is lifted, and then the insertion tube 13 is inserted into the corresponding position in the lower mold. The lower mold then presses the triangular retractor 15, thereby compressing the second spring 16. When the triangular retractor 15 moves to the bottom of the lower mold, the second spring 16 will drive the triangular retractor 15 to return to its original position, thus preventing the triangular retractor 15 from leaving the bottom of the lower mold and thus restricting the position of the top plate 1. Then, the pressure continues to be applied, so that the pressing plate 4 and the fixture 7 enter the lower mold, thereby pressing the product inside the lower mold. Then, the knob 3 is turned, which drives the screw 2 to rotate, thereby moving the pressing plate 4 downward, thereby pressing the pressing components and moving the fixture 7, so that the fixture 7 can press the product more tightly, so that the product can maintain its shape after cooling, thereby reducing the possibility of product deformation and reducing the occurrence of unusable products, thus reducing economic losses.
[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An in-mold forming device for automotive plastic parts, comprising a top plate (1); Its features are: A positioning component is provided on the outer side of the top plate (1). The positioning component includes two connecting rods (5) fixedly connected to the bottom of the top plate (1). A fixture (7) is slidably connected to the outer side of the connecting rods (5). A pressing plate (4) is slidably connected to the outer side of the connecting rods (5). An insertion rod (9) is fixedly connected to the bottom of the top plate (1). The top plate (1) is internally threaded with a screw (2), the bottom of the screw (2) is rotatably connected to the top of the pressing plate (4), and a knob (3) is fixedly connected to the top of the screw (2).
2. The in-mold forming device for automotive plastic parts according to claim 1, characterized in that: A cooling assembly is provided on the outside of the fixture (7). The cooling assembly includes a transmission hose (10) fixedly connected inside the fixture (7). Supporting metal pipes (11) are fixedly connected to both ends of the transmission hose (10). A connecting pipe (12) is fixedly connected to the outside of the supporting metal pipe (11). The inside of the connecting pipe (12) is connected to the inside of the supporting metal pipe (11).
3. The in-mold forming device for automotive plastic parts according to claim 2, characterized in that: A pressing assembly is provided on the outside of the connecting rod (5) and the outside of the supporting metal tube (11). The pressing assembly includes a limiting plate (6) fixedly connected to the outside of the supporting metal tube (11) and the connecting rod (5). A first spring (8) is sleeved on the outside of the connecting rod (5) and the supporting metal tube (11). The first spring (8) is fixedly connected between the bottom of the pressing plate (4) and the top of the fixture (7).
4. The in-mold forming device for automotive plastic parts according to claim 1, characterized in that: The bottom of the top plate (1) is provided with a limiting component, which includes an insertion tube (13) fixedly connected to the bottom of the top plate (1). A triangular retraction component (15) is slidably connected inside the insertion tube (13), and the triangular retraction component (15) penetrates the insertion tube (13).
5. The in-mold forming device for automotive plastic parts according to claim 4, characterized in that: The limiting component also includes a mounting frame (14) fixedly connected inside the insertion tube (13), and a second spring (16) is fixedly connected between the outer side of the triangular retraction member (15) and the inside of the mounting frame (14).
6. The in-mold forming device for automotive plastic parts according to claim 2, characterized in that: The supporting metal tube (11) passes through the pressing plate (4) and is slidably connected. The outer side of the supporting metal tube (11) is slidably connected to the inside of the top plate (1).
7. The in-mold forming device for automotive plastic parts according to claim 4, characterized in that: The triangular recycling component (15) passes through the mounting frame (14) and is slidably connected.