A mold structure for a two-color molded part with synchronous orientation

Abstract

The present application relates to a kind of double-color molded part mold structure with synchronous guide, including mold mechanism, loading plate, guide mechanism, the loading plate is set up oppositely, the mold mechanism is set up oppositely, and the rear side end of mold mechanism is respectively fixed on loading plate by bolt, the guide mechanism is set up oppositely by bolt and is fixed between the rear side of loading plate.The present application optimizes the setting of double-color molded part mold sliding turnover guide mechanism, improves a kind of structure using gear as guide piece, utilizes the principle of interaction, so that synchronous movement is realized in the movement process, while under the gravity of itself, the upper mold synchronous movement is realized, reduces the problem of extrusion and slider displacement, and it is suitable for use.

Description

Technical Field

[0001] This invention relates to the field of plastic molds, and more particularly to a two-color mold structure with synchronous guidance. Background Technology

[0002] Two-color mold technology is a crucial driver of development in numerous industries, including automotive, home appliances, and electronics. By molding two different materials within the same mold, it not only enhances product aesthetics and functionality but also improves production efficiency and reduces costs. A common two-color mold involves a large rear slide block ejection mechanism. Slide block limiting mechanisms exist in two forms: those consisting of a slide block lock and spring, and those driven by a hydraulic cylinder. However, during the rotation of a two-color mold, the large rear slide block experiences centrifugal force due to rotation. Upon stopping, it is subjected to a downward force due to its own gravity. The slide block lock and spring are prone to failure, potentially causing the slide block to fall and posing a risk of mold compression. Hydraulic cylinder drives are unsuitable in the motion logic where the rear slide block remains stationary during the first injection and moves during the second. Therefore, a two-color mold structure with synchronous guidance is designed. Summary of the Invention

[0003] The purpose of this invention is to provide a mold structure for two-color molded parts with synchronous guidance to solve the above-mentioned technical problems. To achieve the above objective, the present invention adopts the following technical solution:

[0004] A two-color molded part mold structure with synchronous guidance includes a mold mechanism, a loading plate, and a guide mechanism. The loading plate is arranged vertically opposite to the mold mechanism, and the rear ends of the mold mechanism are respectively fixed to the loading plate by bolts. The guide mechanism is arranged horizontally opposite to the rear sides of the loading plate by bolts.

[0005] Based on the above technical solution, positioning protrusions are provided on the opposite sides of the loading plate, and recessed fixing ears are provided on the inner side of the opposite side of the loading plate. Mold side fixing screw holes are provided on the recessed fixing ears. Loading fixing holes are provided on the outer sides of the loading plate. Two rows of mold bottom fixing screw holes are provided on the loading plate. Guide fixing screw holes are provided on the loading plate outside the mold bottom fixing screw holes. The guide mechanism is fixed to the rear side of the guide fixing screw holes by bolts. The mold mechanism is located between the positioning protrusions on both sides, and the mold mechanism is fixed to the mold bottom fixing screw holes and one side of the mold side fixing screw holes by bolts.

[0006] Based on the above technical solution, the guiding mechanism consists of opposing guide plates, a fixed end plate, an embedded positioning block, and a clamping gear. The opposing guide plates are disposed on the side of the fixed end plate, and the embedded positioning block is disposed at the center of the fixed end plate. The opposing guide plates, the fixed end plate, and the embedded positioning block are integrally formed. The opposing guide plates, the fixed end plate, the embedded positioning block, and the clamping gear are arranged in pairs. The two sets of opposing guide plates are arranged opposite to each other. The inner sidewalls of the two sets of opposing guide plates are provided with sliding teeth. The clamping gear is disposed between the two sets of opposing guide plates and meshes with the sliding teeth. The embedded positioning block and the fixed end plate are provided with guide fixing holes. The guide fixing holes are corresponding to the guide fixing screw holes on the loading plate, and bolts are inserted into the guide fixing holes to fix the fixed end plate. The embedded positioning block is embedded in the back side of the loading plate.

[0007] Based on the above technical solution, the mold mechanism consists of top and bottom mold plates, side protruding fixing ears, mold bottom fixing ears, fitting corner round grooves, and fitting corner round protrusions. The top and bottom mold plates are arranged opposite each other. The side protruding fixing ears are arranged on the planar side of the top and bottom mold plates, and the mold bottom fixing ears are arranged on the back side of the top and bottom mold plates. The top and bottom mold plates, side protruding fixing ears, and mold bottom fixing ears are integrally fixed. The fitting corner round grooves and fitting corner round protrusions are correspondingly arranged, and the fitting corner round grooves and fitting corner round protrusions are arranged on the corners of the contact surfaces of the top and bottom mold plates. The fitting corner round protrusions on one side of the top and bottom mold plates are correspondingly embedded in the fitting corner round grooves on the other side of the top and bottom mold plates. The side protruding fixing ears and recessed fixing ears are correspondingly arranged, and the side protruding fixing ears are fixed to the recessed fixing ears by bolts. The mold bottom fixing ears are fixed to the mold bottom fixing screw holes by bolts.

[0008] Compared with the prior art, the present invention has the following advantages: The present invention optimizes the setting of the sliding flipping guide mechanism of the two-color molded part, and improves it into a structure that uses gears as guides. By utilizing the principle of interaction, synchronous movement is achieved during the movement. At the same time, when it falls under its own weight, the upper mold moves synchronously, reducing the problems of squeezing and slider displacement. It is suitable for widespread use. Attached Figure Description

[0009] Figure 1 This is a diagram showing the overall appearance of the present invention.

[0010] Figure 2 This is a schematic diagram showing the structural breakdown of the present invention.

[0011] Figure 3 This is a schematic diagram of the loading plate of the present invention.

[0012] Figure 4 This is a schematic diagram of the guiding mechanism of the present invention.

[0013] Figure 5 This is a schematic diagram of the mold mechanism of the present invention.

[0014] In the diagram: 1. Mold mechanism; 2. Loading plate; 3. Guide mechanism; 4. Bolt; 5. Positioning protrusion; 6. Recessed fixing ear; 7. Mold side fixing screw hole; 8. Loading fixing hole; 9. Mold bottom fixing screw hole; 10. Guide fixing screw hole; 11. Opposing guide plate; 12. Fixed end plate; 13. Embedded positioning block; 14. Clamping gear; 15. Sliding gear; 16. Top and bottom mold plates; 17. Side protruding fixing ear; 18. Mold bottom fixing ear; 19. Fitting corner round groove; 20. Fitting corner round protrusion; 21. Guide fixing hole. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] A two-color molded part mold structure with synchronous guidance includes a mold mechanism 1, a loading plate 2, and a guide mechanism 3. The loading plate 2 is arranged vertically opposite each other, the mold mechanism 1 is arranged vertically opposite each other, and the rear ends of the mold mechanism 1 are respectively fixed to the loading plate 2 by bolts 4. The guide mechanism 3 is arranged horizontally opposite each other and fixed between the rear sides of the loading plate 2 by bolts 4.

[0017] The loading plate 2 has positioning protrusions 5 on its opposite sides and recessed fixing ears 6 on its inner opposite sides. The recessed fixing ears 6 have mold side fixing screw holes 7. The loading plate 2 has loading fixing holes 8 on its outer sides and two rows of mold bottom fixing screw holes 9 on its loading plate 2. The loading plate 2 has guide fixing screw holes 10 starting from the outer side of the mold bottom fixing screw holes 9. The guide mechanism 3 is fixed to the rear side of the guide fixing screw holes 10 by bolts 4. The mold mechanism 1 is set between the positioning protrusions 5 on both sides and is fixed to the mold bottom fixing screw holes 9 and one side of the mold side fixing screw holes 7 by bolts 4.

[0018] The guiding mechanism 3 consists of opposing guide plates 11, a fixed end plate 12, an embedded positioning block 13, and a clamping gear 14. The opposing guide plates 11 are disposed on the side of the fixed end plate 12, and the embedded positioning block 13 is disposed at the center of the fixed end plate 12. The opposing guide plates 11, the fixed end plate 12, and the embedded positioning block 13 are integrally formed. The opposing guide plates 11, the fixed end plate 12, the embedded positioning block 13, and the clamping gear 14 are arranged in pairs, and the two sets of opposing guide plates 11 are arranged opposite to each other. The inner sidewalls of the two sets of opposing guide plates 11 are provided with sliding teeth 15. The clamping gear 14 is disposed between the two sets of opposing guide plates 11 and is meshed with the sliding teeth 15. The embedded positioning block 13 and the fixed end plate 12 are provided with guide fixing holes 21. The guide fixing holes 21 are corresponding to the guide fixing screw holes 10 on the loading plate 2. The bolts 4 are inserted into the guide fixing holes 21 to fix the fixed end plate 12. The embedded positioning block 13 is embedded in the back side of the loading plate 2.

[0019] The mold mechanism 1 consists of top and bottom mold plates 16, side protruding fixing ears 17, mold bottom fixing ears 18, fitting corner rounded grooves 19, and fitting corner rounded protrusions 20. The top and bottom mold plates 16 are arranged opposite each other. The side protruding fixing ears 17 are arranged on the planar side of the top and bottom mold plates 16, and the mold bottom fixing ears 18 are arranged on the back side of the top and bottom mold plates 16. The top and bottom mold plates 16, side protruding fixing ears 17, and mold bottom fixing ears 18 are integrally fixed. The fitting corner rounded grooves 19 and fitting corner rounded protrusions 20 are also integrally fixed. The corner rounded protrusions 20 are correspondingly provided, and the corner rounded grooves 19 and corner rounded protrusions 20 are provided on the corners of the contact surfaces of the top and bottom mold plates 16. The corner rounded protrusions 20 on one side of the top and bottom mold plates 16 are correspondingly embedded in the corner rounded grooves 19 on the other side of the top and bottom mold plates 16. The side protruding fixing ears 17 and the recessed fixing ears 6 are correspondingly provided, and the side protruding fixing ears 17 are fixed to the recessed fixing ears 6 by bolts 4. The mold bottom fixing ears 18 are fixed to the mold bottom fixing screw holes 9 by bolts 4.

[0020] In practical application, the working principle of this mold structure is as follows: First, in the first color injection stage: the upper and lower opposing mold plates 16 are precisely fitted with the corner rounded protrusions 20 and corner rounded grooves 19, the side protruding fixing ears 17 and the recessed fixing ears 6 of the loading plate 2 are locked with bolts 4, and the mold bottom fixing ears 18 are fastened to the mold bottom fixing screw holes 9, forming a sealed cavity, completing the filling and curing of the first color injection molding material. Subsequently, when the two colors are switched, the clamping gear 14 of the guide mechanism 3 meshes with the sliding teeth 15 on the inner side of the opposing guide plate 11, driving the upper and lower mold mechanisms 1 to move synchronously along the guide direction, avoiding unilateral displacement deviation; the fitting structure of the embedded positioning block 13 and the back side of the loading plate 2 further improves the displacement stability. When the displacement reaches the second color injection station, the guide mechanism 3 is fixed to the guide fixing screw holes 10 with bolts 4, the upper and lower mold plates 16 close again, the second color material is injected, and the synchronous guide structure ensures that the mating surfaces of the two-color plastic parts are precisely aligned. Throughout the process, the positioning protrusion 5 limits the lateral displacement of the mold mechanism 1, and the loading and fixing hole 8 securely installs the overall structure onto the injection molding equipment, effectively solving the molding risk caused by centrifugal force or gravity falling of the traditional two-color mold slider, and improving the molding accuracy and production safety of plastic parts.

[0021] The above description represents a preferred embodiment of the present invention. For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of the present invention, based on the teachings of the present invention, still fall within the protection scope of the present invention.

Claims

1. A mold structure for a two-color molded part with synchronous guidance, characterized in that, The system includes a mold mechanism (1), a loading plate (2), and a guide mechanism (3). The loading plate (2) is arranged vertically opposite to each other, and the mold mechanism (1) is arranged vertically opposite to each other. The rear ends of the mold mechanism (1) are fixed to the loading plate (2) by bolts (4). The guide mechanism (3) is arranged horizontally opposite to each other and is fixed between the rear sides of the loading plate (2) by bolts (4).

2. The mold structure for a two-color molded part with synchronous guidance according to claim 1, characterized in that, The loading plate (2) has positioning protrusions (5) on both sides of the opposite side, and recessed fixing ears (6) on the inner side of the opposite side of the loading plate (2). The recessed fixing ears (6) have mold side fixing screw holes (7). The loading plate (2) has loading fixing holes (8) on both sides of the outer side. The loading plate (2) has two rows of mold bottom fixing screw holes (9). The loading plate (2) outside the mold bottom fixing screw holes (9) starts with guide fixing screw holes (10). The guide mechanism (3) is fixed to the rear side of the guide fixing screw holes (10) by bolts (4). The mold mechanism (1) is set between the positioning protrusions (5) on both sides, and the mold mechanism (1) is fixed to the mold bottom fixing screw holes (9) and one side of the mold side fixing screw holes (7) by bolts (4).

3. The mold structure for a two-color molded part with synchronous guidance according to claim 2, characterized in that, The guiding mechanism (3) consists of opposing guide plates (11), a fixed end plate (12), an embedded positioning block (13), and a clamping gear (14). The opposing guide plates (11) are located on the side of the fixed end plate (12), and the embedded positioning block (13) is located at the center of the fixed end plate (12). The opposing guide plates (11), the fixed end plate (12), and the embedded positioning block (13) are integrally formed. The opposing guide plates (11), the fixed end plate (12), the embedded positioning block (13), and the clamping gear (14) are arranged in pairs. The two sets of opposing guide plates (11) are arranged opposite to each other. The inner sidewalls of the two sets of opposing guide plates (11) are provided with sliding teeth (15). The clamping gear (14) is set between the two sets of opposing guide plates (11) and the clamping gear (14) is meshed with the sliding teeth (15). The embedded positioning block (13) and the fixed end plate (12) are provided with guide fixing holes (21). The guide fixing holes (21) are correspondingly set with the guide fixing screw holes (10) on the loading plate (2). The bolts (4) are inserted in the guide fixing holes (21) to fix the fixed end plate (12). The embedded positioning block (13) is embedded in the back side of the loading plate (2).

4. The mold structure for a two-color molded part with synchronous guidance according to claim 2, characterized in that, The mold mechanism (1) consists of a top and bottom mold plate (16), side protrusion fixing ears (17), mold bottom fixing ears (18), fitting corner round grooves (19), and fitting corner round protrusions (20). The top and bottom mold plates (16) are arranged opposite each other. The side protrusion fixing ears (17) are arranged on the planar side of the top and bottom mold plates (16), and the mold bottom fixing ears (18) are arranged on the back side of the top and bottom mold plates (16). The top and bottom mold plates (16), side protrusion fixing ears (17), and mold bottom fixing ears (18) are fixed together. The fitting corner round grooves (19) and fitting corner round protrusions (20) are also fixed together. The corner rounded protrusion (20) is correspondingly set, and the fitting corner rounded groove (19) and the fitting corner rounded protrusion (20) are set on the corner of the contact surface of the top and bottom mold plate (16). The fitting corner rounded protrusion (20) on one side of the top and bottom mold plate (16) is correspondingly embedded in the fitting corner rounded groove (19) on the other side of the top and bottom mold plate (16). The side protrusion fixing ear (17) and the recessed fixing ear (6) are correspondingly set, and the side protrusion fixing ear (17) is fixed on the recessed fixing ear (6) by bolts (4). The mold bottom fixing ear (18) is fixed on the mold bottom fixing screw hole (9) by bolts (4).

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