Double-color injection mold structure for production of single-color machine

Abstract

The utility model relates to the technical field of injection molds, in particular to a double-color injection mold structure for production of a single-color machine, which comprises a plate B and a plate A. A rear mold core connected with the plate B is arranged in the plate B. A front mold core connected with the plate A is arranged in the plate A. A mold cavity capable of forming a product is reserved between the rear mold core and the front mold core. The mold cavity comprises a first-color mold cavity and a second-color mold cavity, the first-color mold cavity is communicated with the second-color mold cavity, the first-color mold cavity can form a first-color product, and the second-color mold cavity can form a second-color product connected with the first-color product; and a rear mold insert capable of moving up and down along the interior of the plate B and being adjusted is arranged in the plate B, and the rear mold insert can move into the second color cavity. Compared with the prior art, the double-color injection mold structure for production of the single-color machine has the advantages that the production cost can be greatly reduced by arranging the rear mold insert and a core pulling structure.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a double-color injection mold structure for single-color machine production. Background Art

[0002] At present, many automotive injection molding parts adopt the two-color injection molding process, which is generally performed on a two-color mold using a two-color injection molding machine. However, the production cost of a two-color injection molding machine of the same tonnage is higher than that of a single-color injection molding machine. Therefore, it is necessary to provide a mold structure that can be used to mold two-color products using a single-color machine. Therefore, a two-color injection mold structure for single-color machine production is proposed. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides a two-color injection mold structure for single-color machine production, which solves the problems raised in the above-mentioned background technology.

[0005] (2) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a two-color injection mold structure for single-color machine production, comprising a B plate and an A plate, wherein the B plate is provided with a rear mold core connected to the B plate, and the A plate is provided with a front mold core connected to the A plate, and a mold cavity capable of forming a product is left between the rear mold core and the front mold core, and the mold cavity comprises a first color cavity and a second color cavity, the first color cavity and the second color cavity are connected, the first color cavity can form a first color product, and the second color cavity can form a second color product connected to the first color product, and the B plate is provided with a rear mold insert that can be displaced and adjusted up and down along the inside of the B plate, and the rear mold insert can be moved into the second color cavity.

[0007] Furthermore, the top surface of the rear mold insert can be moved to fit the cavity surface of the second color cavity, and the B plate is provided with a rear mold insert push rod connected to the rear mold insert and capable of driving the rear mold insert to move up and down.

[0008] Furthermore, the cavity surface of the second color cavity is identical to the veneer surface at the top of the rear mold insert, a bottom plate is provided under the B plate, a core-pulling drive plate for installing the rear mold insert push rod is provided in the bottom plate, the core-pulling drive plate can drive the rear mold insert push rod to move up and down, and a core-pulling structure is provided in the bottom plate that can drive the core-pulling drive plate to move.

[0009] Furthermore, the core pulling structure includes a core pulling drive cylinder, and the core pulling drive cylinder can drive the core pulling drive plate to move.

[0010] Furthermore, the bottom plate is provided with a support block that can be connected to the B plate, and the bottom plate is provided with an ejector plate that can be set in an empty sleeve with the ejector rod of the rear mold insert.

[0011] Furthermore, the A plate is provided with a single-color glue inlet pipe that can pass through the front mold core, and the single-color glue inlet pipe can inject the molten liquid into the single-color cavity. The A plate is provided with a two-color glue inlet pipe that can pass through the front mold core, and the two-color glue inlet pipe can inject the molten liquid into the second-color cavity.

[0012] Furthermore, the B plate is provided with a locking bolt that can lock the installation of the rear mold core, and the bottom plate is provided with a product ejector rod that can extend upward to the rear mold core, and the product ejector rod can eject the first color product and the second color product formed in the first color cavity and the second color cavity.

[0013] This equipment can cooperate with a single-color injection molding machine to realize the molding and injection of two-color product structures on a single-color machine, thereby reducing production costs.

[0014] The double-color injection mold structure for single-color machine production, compared with the existing technology, is provided with a rear mold insert and a core pulling structure. During injection molding, the rear mold insert is first moved into the two-color cavity by the core pulling structure to seal the two-color cavity, and then the glue is injected into the first-color cavity through the one-color glue inlet pipe. At this time, since the second-color cavity is in a blocked state, the glue will not enter the second-color cavity. After the glue in the first-color cavity is molded, the rear mold insert is moved out of the second-color cavity by the core pulling structure to open the second-color cavity. At this time, the glue is injected into the second-color cavity through the two-color glue inlet pipe. At this time, since the glue in the first-color cavity has been molded, the two-color glue will not enter the first-color cavity. After the glue in the second-color cavity is molded, the complete injection molding process of a two-color product is completed, and the production of the two-color machine is changed to the production of the single-color machine. At the same time, the tonnage of the original two-color production machine can be reduced to two to three tonnage single-color machine production, which greatly reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the structure enlarged at point A in FIG;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the structure enlarged at point B in FIG.

[0018] In the figure: 1. Plate B; 2. Plate A; 3. Rear mold; 4. Front mold core; 5. Mold cavity; 6. First color cavity; 7. Second color cavity; 8. Rear mold insert; 9. Rear mold insert ejector; 10. Bottom plate; 11. Core-pulling drive plate; 12. Core-pulling structure; 13. Support block; 14. Ejector plate; 15. First color rubber inlet hose; 16. Second color rubber inlet hose; 17. Locking bolt; 18. Product ejector; 19. Core-pulling drive cylinder. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figures 1 to 3 The utility model provides a technical solution: a two-color injection mold structure for single-color machine production, including a B plate 1 and an A plate 2, a rear mold core 3 connected to the B plate 1 is provided in the B plate 1, and a front mold core 4 connected to the A plate 2 is provided in the A plate 2, and a mold cavity 5 capable of forming a product is left between the rear mold core 3 and the front mold core 4, characterized in that the mold cavity 5 includes a first color cavity 6 and a second color cavity 7, the first color cavity 6 and the second color cavity 7 are connected, the first color cavity 6 can form a first color product, and the second color cavity 7 can form a second color product. The second color product connected to the first color product, the B plate 1 is provided with a rear mold insert 8 that can be displaced up and down along the inside of the B plate 1 and adjusted, the rear mold insert 8 can be moved into the second color cavity 7, and the veneer at the top of the rear mold insert 8 can be moved to fit the cavity surface of the second color cavity 7, the B plate 1 is provided with a rear mold insert push rod 9 connected to the rear mold insert 8 and capable of driving the rear mold insert 8 to move up and down, the cavity surface of the second color cavity 7 is identical to the veneer at the top of the rear mold insert 8, a bottom plate 10 is provided below the B plate 1, and a There is a core pulling drive plate 11 that can be used to install the rear mold insert push rod 9. The core pulling drive plate 11 can drive the rear mold insert push rod 9 to move up and down. The bottom plate 10 is provided with a core pulling structure 12 that can drive the core pulling drive plate 11 to move. The core pulling structure 12 includes a core pulling drive cylinder 19. The core pulling drive cylinder 19 can drive the core pulling drive plate 11 to move. The bottom plate 10 is provided with a support block 13 that can be connected to the B plate 1. The bottom plate 10 is provided with an ejector plate 14 that can be set in an empty sleeve with the rear mold insert push rod 9. The A plate 2 is provided with a core pulling structure that can penetrate A single-color glue inlet pipe 15 is provided in the front mold core 4, and the single-color glue inlet pipe 15 can inject the molten liquid into the first-color cavity 6. A two-color glue inlet pipe 16 is provided in the A plate 2, which can penetrate the front mold core 4 and inject the molten liquid into the second-color cavity 7. A locking bolt 17 is provided in the B plate 1 for locking the rear mold core 3. A product ejector rod 18 can extend upward to the rear mold core 3 in the bottom plate 10, and the product ejector rod 18 can eject the first-color product and the second-color product formed in the first-color cavity 6 and the second-color cavity 7.

[0021] The electrical components mentioned in this article are all connected to an external main controller and 380V commercial power, and the main controller can be a conventional known device that performs control such as a computer.

[0022] In the description of this specification, the terms "connect", "install", "fix", "set", etc. are understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. As in this example, for ordinary technicians in this field, the specific meanings of the above terms in this utility model or utility model can be understood according to specific circumstances.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A two-color injection mold structure for single-color machine production, comprising a B plate (1) and an A plate (2), wherein the B plate (1) is provided with a rear mold core (3) connected to the B plate (1), and the A plate (2) is provided with a front mold core (4) connected to the A plate (2), and a mold cavity (5) capable of forming a product is left between the rear mold core (3) and the front mold core (4), characterized in that: The mold cavity (5) includes a first color cavity (6) and a second color cavity (7), the first color cavity (6) and the second color cavity (7) are connected, the first color cavity (6) can form a first color product, and the second color cavity (7) can form a second color product connected to the first color product. The B plate (1) is provided with a rear mold insert (8) that can be moved up and down and adjusted along the inside of the B plate (1), and the rear mold insert (8) can be moved into the second color cavity (7).

2. The double-color injection mold structure for single-color machine production according to claim 1, characterized in that: The top surface of the rear mold insert (8) can be moved to fit the cavity surface of the second color cavity (7), and the B plate (1) is provided with a rear mold insert push rod (9) connected to the rear mold insert (8) and capable of driving the rear mold insert (8) to move up and down.

3. The double-color injection mold structure for single-color machine production according to claim 2, characterized in that: The cavity surface of the second color cavity (7) is identical to the top surface of the rear mold insert (8); a bottom plate (10) is provided below the B plate (1); a core-pulling driving plate (11) capable of installing a rear mold insert push rod (9) is provided in the bottom plate (10); the core-pulling driving plate (11) can drive the rear mold insert push rod (9) to move up and down; and a core-pulling structure (12) capable of driving the core-pulling driving plate (11) to move is provided in the bottom plate (10).

4. The double-color injection mold structure for single-color machine production according to claim 3, characterized in that: The core pulling structure (12) comprises a core pulling drive cylinder (19), and the core pulling drive cylinder (19) can drive the core pulling drive plate (11) to move.

5. The double-color injection mold structure for single-color machine production according to claim 4, characterized in that: The bottom plate (10) is provided with a support block (13) that can be connected to the B plate (1), and the bottom plate (10) is provided with an ejector plate (14) that can be set in an empty sleeve with the rear mold insert ejector rod (9).

6. The double-color injection mold structure for single-color machine production according to claim 5, characterized in that: The A plate (2) is provided with a single-color glue inlet pipe (15) capable of penetrating the front mold core (4), and the single-color glue inlet pipe (15) is capable of injecting molten liquid into the first-color mold cavity (6). The A plate (2) is provided with a two-color glue inlet pipe (16) capable of penetrating the front mold core (4), and the two-color glue inlet pipe (16) is capable of injecting molten liquid into the second-color mold cavity (7).

7. The double-color injection mold structure for single-color machine production according to claim 6, characterized in that: The B plate (1) is provided with a locking bolt (17) capable of installing and locking the rear mold core (3); the bottom plate (10) is provided with a product ejector rod (18) capable of extending upward to the rear mold core (3); the product ejector rod (18) is capable of ejecting the first color product and the second color product formed in the first color cavity (6) and the second color cavity (7).

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