Panel injection mold

Abstract

The utility model discloses a kind of decorative plate injection mould, including mould body, exit control device and partition piece, mould body is equipped with the first injection cavity and second injection cavity connected by communicating port;One end of partition piece is located in second injection cavity and blocks communicating port, and the other end of partition piece is connected with exit control device through the exit channel of second injection cavity inner wall. The utility model temporarily partitions first injection cavity and second injection cavity using partition piece, after the first injection of first injection product in first injection cavity, partition piece is controlled to exit from second injection cavity by exit control device, and then second injection product is injected in second injection cavity, simultaneously, so that first injection product and second injection product are connected, to obtain the decorative plate of different color product composition, compared with the existing manual pasting mode, it can avoid damaging decorative plate appearance, and improve decorative plate yield.

Description

Technical Field

[0001] This utility model relates to the field of decorative panel mold technology, and in particular to a decorative panel injection mold. Background Technology

[0002] Currently, three-color decorative panels with lip-shaped edges consist of a first injection of a non-gloss product, a second injection of a gloss product, and a third injection of a soft rubber product, i.e., the lip. However, the first injection of the non-gloss product, the second injection of the gloss product, and the third injection of the soft rubber product are not independent of each other and cannot be injection molded simultaneously. Therefore, the existing manufacturing process for three-color decorative panels is as follows: First, a non-gloss product is injected using a double-shot injection molding machine. Second, the double-shot injection molding machine opens the mold, rotates the male mold part 180°, and then closes the mold. Then, the double-shot injection molding machine injects the second gloss product, thus obtaining the double-shot gloss product. The third type of soft rubber product is produced simultaneously using a regular single-shot injection molding machine. Finally, the on-site operator attaches the third soft rubber product to both ends of the double-shot gloss product to obtain the three-color decorative panel.

[0003] However, when applying the third-shot soft adhesive product, on-site workers must first peel off the protective film from both ends of the double-shot high-gloss product before proceeding with the application. During this process, the surface of the double-shot high-gloss product is extremely prone to scratches. Furthermore, on-site workers are prone to misaligning, reversing, or even missing parts when applying the third-shot soft adhesive product, affecting the yield rate of the decorative panels. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a decorative panel injection mold that avoids damage to the appearance of the decorative panel during the production of decorative panels composed of products of different colors, while improving the yield of the decorative panel.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A decorative panel injection mold includes a mold body, an ejection control device, and a partition. The mold body is provided with a first injection cavity and a second injection cavity connected by a communication port. One end of the partition is located inside the second injection cavity and blocks the communication port, while the other end of the partition is connected to the exit control device through the exit channel on the inner wall of the second injection cavity.

[0006] Furthermore, the exit control device includes a support rod and a support block; The support block is movably disposed within the mold body, the upper end of the support rod is connected to the partition, the lower end of the support rod abuts against the support surface of the support block, and the support surface is provided with a first inclined surface; The direction of movement of the support block is perpendicular to the axial direction of the support rod.

[0007] Furthermore, the exit control device also includes a linear drive component; The support block is connected to the movable end of the linear drive assembly; The direction of movement of the movable end of the linear drive assembly is perpendicular to the axial direction of the support rod.

[0008] Furthermore, the exit control device also includes a slider; The mold body has a movable channel connected to the exit channel. The slider is slidably disposed in the movable channel. The sliding direction of the slider is perpendicular to the axial direction of the support rod. The movable end of the linear drive assembly is connected to the support block through the slider.

[0009] Furthermore, a wear-resistant layer is provided on the inner wall of the active channel, and the slider is slidably frictionally connected to the wear-resistant layer.

[0010] Furthermore, the exit control device also includes a travel detection element; The stroke detection component is movably disposed within the mold body, and the detection end of the stroke detection component is positioned facing the movable end of the linear drive assembly; The direction of movement of the stroke detection element is the same as the direction of movement of the moving end of the linear drive assembly.

[0011] Furthermore, the lower end of the support rod is provided with a second inclined surface corresponding to the first inclined surface.

[0012] Furthermore, the mold body is provided with guide components; The guide is arranged around the circumferential side of the support rod, and the guide extends toward the direction of the second injection cavity.

[0013] Furthermore, a limiting protrusion is provided on the inner wall of the exit channel; The side surface of the partition is provided with a shoulder corresponding to the limiting protrusion.

[0014] Furthermore, there are at least two second injection cavities and at least one partition, with each second injection cavity corresponding to one partition.

[0015] The beneficial effects of this utility model are as follows: It provides a decorative panel injection mold that uses a partition to temporarily separate the first injection cavity and the second injection cavity. After the first injection product is injected into the first injection cavity, the partition is controlled to exit from the second injection cavity by an exit control device. Then, the second injection product is injected into the second injection cavity, which connects the first injection product and the second injection product to obtain a decorative panel composed of products of different colors. Compared with the existing method of manual pasting, this method can avoid damaging the appearance of the decorative panel and improve the yield of the decorative panel. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an existing three-color decorative panel; Figure 2 This is a cross-sectional view of an existing three-color decorative panel; Figure 3 This is a schematic diagram of the internal components of a decorative panel injection mold according to this utility model; Figure 4 This is a schematic diagram illustrating the interaction between a decorative panel injection mold of this utility model and existing first injection molding machine and third injection molding device; Figure 5 This is a schematic diagram showing the position of the partition component of a decorative panel injection mold in the partition state according to the present invention; Figure 6 This is a schematic diagram showing the position of the partition component of a decorative panel injection mold in the retracted state. Figure 7 This is a schematic diagram of the structure of a panel injection mold exit control device according to the present invention, when the partition is in the partition state; Figure 8 This is a schematic diagram of the structure of a control device for exiting a decorative panel injection mold according to the present invention, which controls the partition to change from a partitioned state to an exited state. Figure 9 This is a schematic diagram of the structure of a panel injection mold exit control device according to the present invention, when the partition is in the exit state. Figure 10 This is a schematic diagram showing the distribution of the hot runner inlet and the second jet channel of a decorative panel injection mold according to this utility model. Figure 11 A schematic diagram of the location of the third injection channel in a decorative panel injection mold according to this utility model.

[0017] Label Explanation: 1. Mold body; 2. Exit control device; 3. Partition; 4. Connecting port; 5. First injection cavity; 6. Second injection cavity; 7. Exit channel; 8. Movable channel; 9. Wear-resistant layer; 10. First injection for non-high-gloss products; 11. Second injection for high-gloss products; 12. Third injection for soft rubber products; 13. First injection molding machine; 14. Third injection molding device; 15. Hot runner inlet; 16. Second injection channel; 17. Third injection channel; 18. Sprue nozzle; 19. Valve pin; 21. Support rod; 22. Support block; 23. First inclined plane; 24. Linear drive assembly; 25. Slider; 26. Stroke detection element; 27. Second inclined plane; 28. Guide element; 29. ​​Fixing block; 31. Shoulder; 71. Limiting protrusion. Detailed Implementation

[0018] 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.

[0019] The existing structure of the three-color decorative panel is as follows Figure 1 and Figure 2 As shown, its manufacturing process is as follows: First, a double-shot injection molding machine is used to inject the first shot of the non-gloss product 10. Second, the double-shot injection molding machine opens the mold, rotates the male mold part 180°, and then closes the mold. Then, the double-shot injection molding machine injects the second shot of the gloss product 11, thus obtaining the double-shot gloss product. The third shot of the soft rubber product 12 is produced simultaneously using a regular single-shot injection molding machine. Finally, the on-site operator attaches the third soft rubber product 12 to both ends of the double-shot gloss product to obtain the three-color decorative panel.

[0020] However, when applying the third-shot soft adhesive product 12, the operator must first peel off the protective film from both ends of the double-shot high-gloss product before proceeding with the application. During this process, the appearance of the double-shot high-gloss product is extremely prone to scratches. Furthermore, on-site operators are prone to misaligning, reversing, or even missing parts when applying the third-shot soft adhesive product 12, affecting the yield rate of the decorative panels.

[0021] To address at least the aforementioned problems, this application proposes a decorative panel injection mold, such as... Figures 3 to 6 As shown, the mold includes a mold body 1, an exit control device 2, and a partition 3. The mold body 1 has a first injection cavity 5 and a second injection cavity 6 connected by a connecting port 4. One end of the partition 3 is located inside the second injection cavity 6 and blocks the connecting port 4. The other end of the partition 3 is connected to the exit control device 2 through an exit channel 7 on the inner wall of the second injection cavity 6.

[0022] Combination Figure 4 and Figure 5 As shown, taking a three-color decorative panel as an example, the first injection cavity 5 and the second injection cavity 6 are used for injection molding the second high-gloss product 11 and the third soft rubber product 12, respectively, while the connecting port 4 corresponds to the connection part between the second high-gloss product 11 and the third soft rubber product 12. During the injection molding process, the partition 3 has the following two states: Partition status: such as Figure 5 As shown, the partition 3 enters the second injection cavity 6 from the exit channel 7 and then seals the connecting port 4; furthermore, the partition 3 does not occupy the cavity space of the first injection cavity 5. At this point, it is sufficient to wait for the injection process in the first injection cavity 5 to complete. The injection process in the first injection cavity 5 is combined with... Figure 10As shown, after the molten plastic of the second high-gloss product 11 is poured into the hot runner inlet 15 of the mold body 1, it flows into the second injection channel 16 under the control of the valve needle 19, and finally enters the first injection cavity 5, waiting for the molding to be completed.

[0023] Exit status: such as Figure 6 As shown, after the first injection cavity 5 is completed, the partition 3 retracts from the second injection cavity 6 into the exit channel 7; and the partition 3 just blocks the exit channel 7; at this time, the internal space of the second injection cavity 6 is completely vacated and connected to the second high-gloss product 11 that has been injected in the first injection cavity 5 through the connecting port 4, so that the injection process of the third soft rubber product 12 can begin.

[0024] This utility model also includes a third injection molding device 14, and the injection molding process of the third injection soft rubber product 12 is as follows: Figure 3 and Figure 11 As shown, the molten plastic of the third injection soft rubber product 12 is in the third injection molding device 14; during injection molding, the molten plastic of the third injection soft rubber product 12 is poured into the mold body 1 from the sprue nozzle 18 by the third injection molding device 14; the molten plastic of the third injection soft rubber product 12 enters the second injection cavity 6 after passing through the third injection channel 17, and waits for the molding to be completed.

[0025] like Figure 4 As shown, the exit control device 2 controls the partition 3 to complete the switching between the two states mentioned above. When injection molding is performed in the first injection cavity 5, the injection pressure generated will act on the partition 3. If the exit control device 2 uses the moving end of a linear drive device such as a cylinder or push rod motor to directly connect to and control the partition 3, the injection pressure will cause damage to the moving end of the linear drive device.

[0026] Therefore, combined Figures 7 to 9 As shown, the exit control device 2 of this utility model includes a support rod 21 and a support block 22; the support block 22 is movably disposed within the mold body 1, the upper end of the support rod 21 is connected to the partition 3, and the lower end of the support rod 21 abuts against the support surface of the support block 22, the support surface being provided with a first inclined surface 23; the moving direction of the support block 22 is perpendicular to the axial direction of the support rod 21. (Refer to...) Figure 7 The direction of movement of support block 22 is shown by the horizontal arrow, while the direction of movement of support rod 21 is shown by the vertical arrow; Figure 8 As shown, the lower end of the support rod 21 is provided with a second inclined surface 27 corresponding to the first inclined surface 23. Transmission between the support rod 21 and the support block 22 is achieved through the frictional engagement of the first inclined surface 23 and the second inclined surface 27. During the back-and-forth movement of the support block 22, the support rod 21 moves up and down along the first inclined surface 23; as... Figure 7 As shown, when the support rod 21 is positioned above the first inclined plane 23 on the support surface, the partition 3 enters the partition state; as Figures 8 to 9 As shown, the support block 22 moves, causing the support rod 21 to slide down the first inclined plane 23 until it reaches the position on the support surface corresponding to the lower part of the first inclined plane 23, at which point the partition 3 is in the retracted state. During injection molding in the first injection cavity 5, the generated injection pressure passes through the partition 3 and the support rod 21 successively, and finally acts on the support block 22.

[0027] like Figure 7 As shown, regarding the movement control of the support block 22, the exit control device 2 further includes a linear drive assembly 24; the support block 22 is connected to the movable end of the linear drive assembly 24; the direction of movement of the movable end of the linear drive assembly 24 is perpendicular to the axial direction of the support rod 21. The linear drive assembly 24 is preferably a driving component such as a hydraulic cylinder or a motor. Meanwhile, the mold body 1 has a movable channel 8 connected to the exit channel 7, and the slider 25 is slidably disposed within the movable channel 8. The sliding direction of the slider 25 is perpendicular to the axial direction of the support rod 21, and the movable end of the linear drive assembly 24 is connected to the support block 22 through the slider 25.

[0028] Among them, such as Figure 7 As shown, the size of the slider 25 is adapted to the movable channel 8; the slider 25 serves to limit and guide the movement of the support block 22. Furthermore, a wear-resistant layer 9 is provided on the inner wall of the movable channel 8, and the slider 25 is in sliding frictional connection with the wear-resistant layer 9. The wear-resistant layer 9 can adjust the tightness of the slider 25 during movement, preventing the slider 25 from jamming when moving back and forth within the movable channel 8.

[0029] like Figure 7 As shown, in order to improve the installation convenience of the support block 22, a fixing block 29 is provided between the slider 25 and the support block 22. The fixing block 29 and the slider 25, as well as the fixing block 29 and the support block 22, are detachable connections. The specific connection method can be a high-strength detachable connection method such as bolt connection.

[0030] In some embodiments, such as Figure 7 As shown, in order to more accurately control the movement stroke of the support block 22, that is, to control the partition 3 to complete the switching between the two states mentioned above, the exit control device 2 also includes a stroke detection element 26; the stroke detection element 26 is movably set inside the mold body 1, and the detection end of the stroke detection element 26 is set towards the movable end of the linear drive assembly 24. The movement direction of the stroke detection element 26 is the same as the movement direction of the moving end of the linear drive assembly 24. When there is poor contact of the stroke detection element 26, the position of the stroke detection element 26 can be adjusted to rearrange the stroke detection element 26.

[0031] In some embodiments, such as Figure 7As shown, to ensure that the support rod 22 can stably drive the partition 3 in and out of the exit channel 7, a guide 28 is provided inside the mold body 1; the guide 28 is arranged around the circumferential side of the support rod 21, and the guide 28 extends in the direction close to the second injection cavity 6. The guide 28 plays a guiding and limiting role in the movement of the support rod 21.

[0032] In some embodiments, such as Figure 8 As shown, a limiting protrusion 71 is provided on the inner side wall of the exit channel 7; a shoulder 31 corresponding to the limiting protrusion 71 is provided on the side surface of the partition 3. The limiting protrusion 71 and the shoulder 31 cooperate to limit the size of the part of the partition 3 that can pass through the exit channel 7, so that it can just block the connecting opening 4.

[0033] To meet the injection molding requirements of different products, there are at least two second injection cavities 6 and partitions 3, with each second injection cavity 6 corresponding to a partition 3.

[0034] Please refer to Figures 3 to 6 , Figure 10 as well as Figure 11 Embodiment 1 of this utility model is as follows: A decorative panel injection mold includes a mold body 1, an exit control device 2, and a partition 3. The mold body 1 has a first injection cavity 5 and a second injection cavity 6 connected by a connecting port 4. One end of the partition 3 is located in the second injection cavity 6 and blocks the connecting port 4. The other end of the partition 3 is connected to the exit control device 2 through an exit channel 7 on the inner wall of the second injection cavity 6.

[0035] In this embodiment, combined with Figure 3 , Figure 10 as well as Figure 11 As shown, the mold body 1 is also provided with a hot runner inlet 15, a second injection channel 16, a third injection channel 17, and a sprue nozzle 18; the sprue nozzle 18 has a matching third injection device 14. The hot runner inlet 15 is connected to the first injection cavity 5 through the second injection channel 16.

[0036] In this embodiment, there are at least two second injection cavities 6 and two partitions 3, with each second injection cavity 6 corresponding to a partition 3. Taking a three-color decorative panel as an example, the first injection cavity 5 has space for placing the first non-gloss product 10. The usage process of a decorative panel injection mold is as follows: First, the first injection non-gloss product 10 is injection molded using the existing first injection molding machine 13; the injection-molded first injection non-gloss product 10 is then placed into the space reserved in the first injection cavity 5 inside the mold body 1 of this embodiment.

[0037] Then, as Figure 5As shown, the exit control device 2 controls the partition 3 to maintain the blocking state of the connection port 4, and pours the molten plastic of the second high-gloss product 11 into the hot runner inlet 15. With the cooperation of the valve needle 19, the molten plastic enters the first injection cavity 5 through the second injection channel 16.

[0038] Finally, as Figure 6 As shown, after the molten plastic of the second injection high-gloss product 11 is molded, the exit control device 2 controls the partition 3 to exit the second injection cavity 6 from the exit channel 7; the third injection device 14 pours the molten plastic of the third injection soft rubber product 12 into the inlet nozzle 18; under the cooperation of the valve needle 19, the molten plastic is poured into the second injection cavity 6 through the third injection channel 17, and the molten plastic of the third injection soft rubber product 12 directly contacts the molded second injection high-gloss product 11 and begins to mold.

[0039] It should be noted that this embodiment is not limited to the injection molding process of three-color decorative panels. For decorative panel products with two connected parts and different colors, the decorative panel injection mold of this embodiment can be used to make them.

[0040] Please refer to Figures 7 to 9 Embodiment two of this utility model is as follows: A decorative panel injection mold, based on the above embodiment one, includes an exit control device 2 comprising a support rod 21, a support block 22, a linear drive assembly 24, a slider 25, a stroke detection element 26, and a guide element 28. The support block 22 is connected to the movable end of the linear drive assembly 24, the upper end of the support rod 21 is connected to the partition 3, and the lower end of the support rod 21 abuts against the support surface of the support block 22. The support surface has a first inclined surface 23, and the lower end of the support rod 21 has a second inclined surface 27 corresponding to the first inclined surface 23. The direction of movement of the movable end of the linear drive assembly 24 is perpendicular to the axial direction of the support rod 21.

[0041] In this embodiment, as Figure 7 As shown, the mold body 1 has a movable channel 8 connected to the exit channel 7. The slider 25 is slidably disposed in the movable channel 8, and the sliding direction of the slider 25 is perpendicular to the axial direction of the support rod 21. The movable end of the linear drive assembly 24 is connected to the support block 22 through the slider 25. A wear-resistant layer 9 is provided on the inner side wall of the movable channel 8, and the slider 25 is slidably frictionally connected to the wear-resistant layer 9.

[0042] In this embodiment, as Figure 7As shown, the stroke detection element 26 is movably disposed within the mold body 1, with its detection end facing the movable end of the linear drive assembly 24; the movement direction of the stroke detection element 26 is the same as the movement direction of the movable end of the linear drive assembly 24. The stroke detection element 26 is communicatively connected to the control module of the third injection molding device 14. When the stroke detection element 26 detects that the movable end of the linear drive assembly 24 has reached its position, that is, after the partition 3 enters the retracted state, it sends a signal to the third injection molding device 14, instructing it to begin injecting the molten plastic of the third injection soft rubber product 12.

[0043] In this embodiment, the guide member 28 is arranged around the circumferential side of the support rod 21, and the guide member 28 extends toward the direction close to the second injection cavity 6.

[0044] In summary, the decorative panel injection mold provided by this utility model utilizes a partition to temporarily separate the first and second injection cavities. After the first injection product is molded in the first cavity, the partition is withdrawn from the second cavity via an exit control device. Then, the second injection product is molded in the second cavity, simultaneously connecting the first and second injection products to obtain decorative panels composed of different colors. Compared to the existing manual pasting method, this avoids damage to the panel's appearance and improves the panel yield. The exit control device includes a linear drive assembly, a support block, and a support rod. The linear drive assembly controls the movement of the support block, and torque conversion is achieved through the frictional engagement between the first inclined surface on the support block and the second inclined surface of the support rod. This controls the partition to switch between partition and exit states, avoiding damage to the moving end of the linear drive device caused by injection pressure from direct use. The device also provides sliders, guides, and other components to guide and control the movement of the support block and support rod, ensuring stable and smooth operation of all components. Furthermore, a stroke detection component is provided to facilitate cooperation with a third injection molding device, improving the automation level of injection control.

[0045] 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 decorative panel injection mold, characterized in that, It includes a mold body (1), an exit control device (2) and a partition (3), wherein the mold body (1) is provided with a first injection cavity (5) and a second injection cavity (6) connected by a connecting port (4); One end of the partition (3) is located inside the second injection cavity (6) and blocks the communication port (4). The other end of the partition (3) is connected to the exit control device (2) through the exit channel (7) on the inner wall of the second injection cavity (6).

2. The decorative panel injection mold according to claim 1, characterized in that, The exit control device (2) includes a support rod (21) and a support block (22); The support block (22) is movably disposed inside the mold body (1), the upper end of the support rod (21) is connected to the partition (3), the lower end of the support rod (21) abuts against the support surface of the support block (22), and the support surface is provided with a first inclined surface (23). The direction of movement of the support block (22) is perpendicular to the axial direction of the support rod (21).

3. The decorative panel injection mold according to claim 2, characterized in that, The exit control device (2) also includes a linear drive assembly (24); The support block (22) is connected to the movable end of the linear drive assembly (24); The direction of movement of the movable end of the linear drive assembly (24) is perpendicular to the axial direction of the support rod (21).

4. The decorative panel injection mold according to claim 3, characterized in that, The exit control device (2) also includes a slider (25); The mold body (1) is provided with an active channel (8) connected to the exit channel (7). The slider (25) is slidably disposed in the active channel (8). The sliding direction of the slider (25) is perpendicular to the axial direction of the support rod (21). The active end of the linear drive assembly (24) is connected to the support block (22) through the slider (25).

5. A decorative panel injection mold according to claim 4, characterized in that, The inner wall of the active channel (8) is provided with a wear-resistant layer (9), and the slider (25) is in sliding friction connection with the wear-resistant layer (9).

6. The decorative panel injection mold according to claim 3, characterized in that, The exit control device (2) also includes a stroke detection element (26); The stroke detection component (26) is movably disposed within the mold body (1), and the detection end of the stroke detection component (26) is disposed facing the movable end of the linear drive assembly (24); The movement direction of the stroke detection element (26) is the same as the movement direction of the moving end of the linear drive assembly (24).

7. A decorative panel injection mold according to claim 2, characterized in that, The lower end of the support rod (21) is provided with a second inclined surface (27) corresponding to the first inclined surface (23).

8. A decorative panel injection mold according to claim 2, characterized in that, The mold body (1) is provided with a guide (28); The guide (28) is arranged around the circumferential side of the support rod (21), and the guide (28) extends toward the second injection cavity (6).

9. A decorative panel injection mold according to claim 1, characterized in that, The inner wall of the exit channel (7) is provided with a limiting protrusion (71). The side surface of the partition (3) is provided with a shoulder (31) corresponding to the limiting protrusion (71).

10. A decorative panel injection mold according to claim 1, characterized in that, There are at least two of the second injection cavity (6) and the partition (3), and the second injection cavity (6) corresponds to the partition (3) one by one.

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