Double-color injection mold

Abstract

The utility model relates to the technical field of injection molds, and particularly discloses a double-color injection mold which comprises a first mold and a second mold, the first mold is connected with the second mold in a sliding mode, mold cores are installed in the first mold and the second mold, and forming blocks matched with workpieces are connected to the side walls of the mold cores in a sliding mode. The molding block is matched with the mold core for injection molding of a workpiece, a linkage piece is arranged between the first mold and the molding block, and in the mold opening stroke of the first mold and the second mold, the linkage piece drives the molding block to be away from the mold core; the mold further comprises a bottom plate, an ejection part is arranged between the bottom plate and the second mold, in the mold opening stroke of the first mold and the second mold, the forming block is driven to be away from the mold core through the linkage part, and after the forming block is driven to be away from the mold core, the workpiece is ejected out of the mold core through the ejection part, so that demolding operation of the workpiece is facilitated; not only can the demolding efficiency be improved, but also the yield of products can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a two-color injection mold. Background Technique

[0002] The hidden handle of an automobile can be controlled to be in a closed state when the automobile is moving. At this time, the handle housing is in the same plane as the automobile door panel to reduce the wind resistance and wind noise of the automobile; when the automobile stops and the handle is not in use, the handle housing is also in the same plane as the automobile door panel to maintain the overall beauty of the automobile.

[0003] When injection molding the automobile handle, an injection mold is usually used. An injection mold is a tool for producing plastic products; it is also a tool for endowing plastic products with a complete structure and precise dimensions. Injection molding is a processing method used when mass-producing some parts with complex shapes. Specifically, it means injecting the heat-melted material into the mold cavity under high pressure, and after cooling and solidifying, a formed product is obtained. When working, the injection mold is composed of a moving mold and a fixed mold. The moving mold is installed on the moving template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. When injection molding, the moving mold and the fixed mold are closed to form a gating system and a cavity, and when the mold is opened, the moving mold and the fixed mold are separated to take out the plastic product.

[0004] In the prior art, such as the patent with the application number 202322431006.1, the authorized announcement number CN220700283U, and the invention name "A Two-color Injection Mold", a two-color injection mold is disclosed in the above patent. The two-color injection mold includes a turntable, a left injection mold is fixedly installed at the left end of the front side surface of the turntable, a right injection mold is fixedly installed at the right end of the front side surface of the turntable, and a heat dissipation component is arranged on the front side surface of the turntable.

[0005] In the above patent, the cooling liquid can be added into the water storage tank through the arranged water inlet pipe, so that the cooling liquid circulates in the circulation channels inside the left injection mold and the right injection mold, quickly drives away the heat, and accelerates the cooling and forming of the raw material. However, during the injection molding process of the automobile handle, due to the special structure of the handle, the door handle is easily damaged during the demolding process, and the qualified product rate cannot be guaranteed, there are certain deficiencies. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a two-color injection mold to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A two-color injection mold, including a first mold and a second mold, the first mold is slidably connected to the second mold, a mold core is installed inside the first mold and the second mold, and a forming block adapted to the workpiece is slidably connected to the side wall of the mold core. The forming block and the mold core cooperate to injection mold the workpiece. A linkage member is provided between the first mold and the forming block. When the first mold and the second mold are in the mold opening stroke, the linkage member drives the forming block away from the mold core; It further includes a bottom plate, and an ejecting member is provided between the bottom plate and the second mold. When the forming block moves away from the mold core, the ejecting member ejects the workpiece inside the mold core.

[0008] Further, the linkage member includes a driving block, the driving block is installed on the first mold, a wedge-shaped groove is provided on the driving block, a positioning block is provided on the forming block, and the positioning block is installed in the wedge-shaped groove. When the first mold and the second mold are separated, the positioning block slides in the wedge-shaped groove so that the forming block moves away from the mold core.

[0009] Further, the ejecting member includes a driving plate slidably connected to the bottom plate, multiple ejector rods are provided on the driving plate, and multiple ejector rods are all in communication with the mold core; A driving unit for driving the driving plate to slide is provided on the bottom of the bottom plate.

[0010] Further, the driving unit includes a servo cylinder, the output end of the servo cylinder is installed at the bottom of the driving plate, and the driving plate slides to drive multiple ejector rods to slide to eject the workpiece.

[0011] Further, a limiting rod is also provided between the driving plate and the bottom plate to improve the stability when the driving plate and the bottom plate slide.

[0012] Further, a return spring is also provided between the driving plate and the bottom plate.

[0013] Further, a limiting member is provided between the first mold and the second mold to improve the stability when the first mold and the second mold slide.

[0014] Further, the limiting member includes a limiting rod fixedly connected to the first mold, and a limiting sleeve is fixedly connected to the second mold. When the first mold and the second mold slide, the limiting rod is slidably connected in the limiting sleeve.

[0015] Further, an injection port is also provided on the first mold, and the injection port is communicated with the mold core through an injection channel.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: For this two-color injection mold, through the cooperation among the first mold, the second mold, the linkage member, the forming block and the mold core, after the injection mold injects and cools and forms, the first mold and the second mold are driven to open. During the opening stroke of the first mold and the second mold, the forming block is driven away from the mold core by the linkage member. After driving the forming block away from the mold core, the workpiece is ejected from the inside of the mold core by the ejecting member, thus facilitating the demolding operation of the workpiece. It can not only improve the demolding efficiency, but also ensure the qualified rate of the product, further improving the practicability and reliability of this injection mold, and is suitable for wide promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0018] Figure 1 It is the overall structure schematic diagram provided by the embodiment of the present utility model;

[0019] Figure 2 It is the structure schematic diagram of the mold in the unfolded state provided by the embodiment of the present utility model;

[0020] Figure 3 It is the structure schematic diagram of the installation method of the linkage member provided by the embodiment of the present utility model;

[0021] Figure 4 It is the structure schematic diagram of the connection method between the linkage member and the forming block provided by the embodiment of the present utility model;

[0022] Figure 5 It is the structure schematic diagram of the installation method of the mold core provided by the embodiment of the present utility model;

[0023] Figure 6 It is the structure schematic diagram of the driving block provided by the embodiment of the present utility model;

[0024] Figure 7 It is the structure schematic diagram of the mold core provided by the embodiment of the present utility model;

[0025] Figure 8 It is the structure schematic diagram of the workpiece provided by the embodiment of the present utility model.

[0026] Description of the reference numerals: 1. First mold; 2. Second mold; 3. Injection port; 4. Limiting member; 5. Driving block; 6. Bottom plate; 7. Mold core; 8. Forming block; 9. Workpiece; 10. Driving plate; 11. Ejector rod; 12. Limiting rod; 13. Return spring; 14. Wedge-shaped groove. Detailed implementation mode

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1-8 , the present invention provides a technical solution: a two-color injection mold, including a first mold 1 and a second mold 2. The first mold 1 is slidably connected to the second mold 2. A mold core 7 is installed inside the first mold 1 and the second mold 2. A forming block 8 adapted to the workpiece 9 is slidably connected to the side wall of the mold core 7. The forming block 8 and the mold core 7 cooperate to inject and mold the workpiece 9. A linkage member is provided between the first mold 1 and the forming block 8. When the first mold 1 and the second mold 2 are in the mold opening stroke, the linkage member drives the forming block 8 away from the mold core 7. It further includes a bottom plate 6. A ejecting member is provided between the bottom plate 6 and the second mold 2. After the forming block 8 moves away from the mold core 7, the ejecting member ejects the workpiece 9 inside the mold core 7.

[0029] Specifically, the two-color injection mold specifically includes a first mold 1 and a second mold 2. The first mold 1 is slidably connected to the second mold 2. A mold core 7 is installed inside the first mold 1 and the second mold 2. A forming block 8 adapted to the workpiece 9 is slidably connected to the side wall of the mold core 7. The forming block 8 and the mold core 7 cooperate to inject and mold the workpiece 9, which is convenient for the injection of the workpiece 9. A linkage member is provided between the first mold 1 and the forming block 8. When the first mold 1 and the second mold 2 are in the mold opening stroke, the linkage member drives the forming block 8 away from the mold core 7, which is convenient for subsequent demolding operations, greatly improving the demolding efficiency of the entire injection mold and meeting the work requirements. It further includes a bottom plate 6. A ejecting member is provided between the bottom plate 6 and the second mold 2. After the forming block 8 moves away from the mold core 7, the ejecting member ejects the workpiece 9 inside the mold core 7. Therefore, after the workpiece 9 is injected and cooled and formed in the injection mold, the first mold 1 and the second mold 2 are driven to open the mold. During the mold opening stroke of the first mold 1 and the second mold 2, the linkage member drives the forming block 8 away from the mold core 7. After driving the forming block 8 away from the mold core 7, the ejecting member ejects the workpiece 9 from inside the mold core 7, thus facilitating the demolding operation of the workpiece 9. It can not only improve the demolding efficiency, but also ensure the product qualification rate, further improving the practicability and reliability of the injection mold and being suitable for wide promotion and use. The power for driving the first mold 1 and the second mold 2 to open the mold is the prior art and will not be elaborated here.

[0030] In the embodiments provided by the present utility model, the linkage member includes a driving block 5, the driving block 5 is installed on the first mold 1, a wedge-shaped groove 14 is formed on the driving block 5, a positioning block is arranged on the forming block 8, and the positioning block is installed in the wedge-shaped groove 14. When the first mold 1 is separated from the second mold 2, the positioning block slides in the wedge-shaped groove 14, so that the forming block 8 moves away from the mold core 7, and the use effect is better.

[0031] In the embodiments provided by the present utility model, the ejecting member includes a driving plate 10 slidably connected to the bottom plate 6, multiple ejector rods 11 are arranged on the driving plate 10, and the multiple ejector rods 11 are all in communication with the mold core 7; a driving unit for driving the driving plate 10 to slide is arranged on the bottom of the bottom plate 6. The driving unit includes a servo cylinder, the output end of the servo cylinder is installed at the bottom of the driving plate 10, and the multiple ejector rods 11 are driven to slide by the sliding of the driving plate 10 to eject the workpiece 9.

[0032] In the embodiments provided by the present utility model, a limiting rod 12 is further arranged between the driving plate 10 and the bottom plate 6 to improve the stability when the driving plate 10 slides relative to the bottom plate 6 and further meet the working requirements.

[0033] In the embodiments provided by the present utility model, a return spring 13 is further arranged between the driving plate 10 and the bottom plate 6, which can not only improve the stability when the driving plate 10 slides, but also play a resetting role and reduce the force consumed by the screening cylinder.

[0034] In the embodiments provided by the present utility model, a limiting member 4 is arranged between the first mold 1 and the second mold 2 to improve the stability when the first mold 1 and the second mold 2 slide. The limiting member 4 includes a limiting rod 12 fixedly connected to the first mold 1, and a limiting sleeve is fixedly connected to the second mold 2. When the first mold 1 and the second mold 2 slide, the limiting rod 12 is slidably connected in the limiting sleeve, and the use effect is better.

[0035] In the embodiments provided by the present utility model, an injection port 3 is further formed on the first mold 1, and the injection port 3 is communicated with the mold core 7 through an injection channel, which is convenient for later injection operations.

[0036] It should be noted that the electrical equipment involved in this application can be powered by a storage battery or an external power supply.

[0037] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, terms such as "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A two-color injection mold, comprising a first mold (1) and a second mold (2), wherein the first mold (1) and the second mold (2) are slidably connected, and characterized in that: A mold core (7) is installed inside the first mold (1) and the second mold (2); a molding block (8) adapted to the workpiece (9) is slidably connected to the side wall of the mold core (7); the molding block (8) cooperates with the mold core (7) to injection mold the workpiece (9); and a linkage member is provided between the first mold (1) and the molding block (8); When the first mold (1) and the second mold (2) are in the process of opening, the linkage member drives the molding block (8) away from the mold core (7); It also comprises a bottom plate (6), wherein an ejector is arranged between the bottom plate (6) and the second mold (2), and when the molding block (8) is away from the mold core (7), the ejector ejects the workpiece (9) inside the mold core (7).

2. A two-color injection mold according to claim 1, characterized in that: The linkage member comprises a driving block (5), the driving block (5) is mounted on the first mold (1), a wedge-shaped groove (14) is provided on the driving block (5), and a positioning block is provided on the molding block (8), and the positioning block is mounted in the wedge-shaped groove (14); When the first mold (1) is separated from the second mold (2), the positioning block slides in the wedge-shaped groove (14) so ​​that the forming block (8) is away from the mold core (7).

3. A two-color injection mold according to claim 1, characterized in that: The ejector comprises a driving plate (10) slidably connected to the bottom plate (6), and a plurality of groups of ejector rods (11) are arranged on the driving plate (10), and the plurality of ejector rods (11) are all in conduction with the mold core (7); A driving unit for driving the driving plate (10) to slide is arranged on the bottom of the base plate (6).

4. A two-color injection mold according to claim 3, characterized in that: The driving unit comprises a servo cylinder, the output end of which is mounted on the bottom of a driving plate (10). The driving plate (10) slides to drive multiple groups of ejector rods (11) to slide, thereby ejecting the workpiece (9).

5. A two-color injection mold according to claim 3, characterized in that: A limiting rod (12) is also provided between the driving plate (10) and the bottom plate (6) to improve the stability of the driving plate (10) and the bottom plate (6) when they slide.

6. A two-color injection mold according to claim 3, characterized in that: A return spring (13) is also provided between the driving plate (10) and the bottom plate (6).

7. A two-color injection mold according to claim 1, characterized in that: A limiting member (4) is provided between the first mould (1) and the second mould (2) to improve the stability of the first mould (1) and the second mould (2) when they slide.

8. A two-color injection mold according to claim 7, characterized in that: The limiting member (4) comprises a limiting rod (12) fixedly connected to the first mould (1), and a limiting sleeve fixedly connected to the second mould (2); when the first mould (1) and the second mould (2) slide, the limiting rod (12) is slidably connected in the limiting sleeve.

9. A two-color injection mold according to claim 1, characterized in that: The first mold (1) is also provided with an injection port (3), and the injection port (3) is connected to the mold core (7) through an injection channel.

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