Multicolor injection mold

Abstract

The utility model relates to the technical field of injection molds, in particular to a multicolor injection mold, which is provided with a rear mold assembly, a first seat stand and a second seat stand, the first seat stand and the second seat stand can respectively inject materials with different colors to the rear mold assembly, and the rear mold assembly is provided with a sliding mechanism and a rotating mechanism. The rear mold assembly can automatically switch working positions in different injection molding stages, the rear mold assembly can be close to the first seat stand or the second seat stand according to injection molding requirements, human intervention and semi-finished product transfer time can be shortened, and the problem that the same product can be subjected to injection molding through materials of multiple colors is effectively solved; and a semi-finished product needs to be transferred from one injection mold to another injection mold for continuous processing, so that the production cost is increased, and the production efficiency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to multi-color injection molds. Background Technology

[0002] With the continuous advancement of industrial manufacturing technology, injection molds are widely used to efficiently produce various complex-shaped and precisely sized plastic products. By injecting molten plastic into a pre-set mold cavity and rapidly shaping it after cooling, production efficiency is greatly improved, meeting the demands of modern industry for large-scale customized production.

[0003] With the increasing demand for product diversification, the same product can be injection molded using materials in various colors to meet market demands for personalization and customization. However, in the injection molding process, to achieve this diversified production, it is often necessary to transfer the semi-finished product from one injection mold to another for further processing. This process not only increases production costs but also reduces production efficiency.

[0004] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0005] Regarding the aforementioned issue that the same product can be injection molded from materials of various colors, but during the injection molding process, it is often necessary to transfer the semi-finished product from one injection mold to another for further processing, which not only increases production costs but also reduces production efficiency, the technical solution adopted by this utility model to solve this problem is:

[0006] A multi-color injection mold includes a mold body, the mold body including a rear mold assembly and a base assembly for injection molding the rear mold assembly. The base assembly includes a first base fixedly disposed on one side of the rear mold assembly and a second base movably disposed on the other side of the rear mold assembly. The rear mold assembly is provided with a sliding mechanism for moving the rear mold assembly relative to the first base and a rotating mechanism for rotating the rear mold assembly. The sliding mechanism and the rotating mechanism cooperate to bring the rear mold assembly closer to the first base or the second base.

[0007] Furthermore, an injection molding machine is provided on the second platform, and the second platform can be moved closer to or further away from the first platform through the injection molding machine to form a rotation space for the rear mold assembly to rotate.

[0008] Furthermore, the rear mold assembly includes a rear mold mounting base connected to the sliding mechanism and the rotating mechanism respectively, and a first rear mold located on the rear mold mounting base and used for molding the product.

[0009] Further, the mold body is provided with a mold connecting seat, the sliding mechanism comprises a sliding driving part on the mold connecting seat, a sliding connecting block connected with the output end of the sliding driving part and connected with the rear mold mounting seat, and a sliding gap is arranged between the sliding connecting block and the mold connecting seat to enable the rear mold mounting seat to move relative to the first seat table.

[0010] Further, the rear mold mounting seat is provided with a sliding connecting seat, the sliding mechanism comprises a sliding groove on the sliding connecting seat and a sliding rail on the side of the mold connecting seat close to the sliding connecting seat and connected with the sliding groove.

[0011] Further, the mold connecting seat is provided with a connecting groove arranged along the moving direction of the rear mold mounting seat, and the rotating mechanism comprises a rotating motor, a rotating shaft connected with the output end of the rotating motor and penetrating through the connecting groove and connected with the rear mold mounting seat.

[0012] Further, the rotating mechanism comprises a rotating connecting seat for mounting the rotating motor, a vertical connecting block arranged in the vertical direction and used for connecting the rotating connecting seat and the rear mold mounting seat, and the sliding driving part is arranged in the horizontal direction and penetrates through the vertical connecting block.

[0013] Further, the rear mold assembly comprises a second rear mold arranged on the rear mold mounting seat and used for forming a product, and when the first rear mold is arranged on the side close to the first seat table, the second rear mold is arranged on the side close to the second seat table.

[0014] Further, the mold body is provided with an ejection mechanism for ejecting the formed product of the rear mold assembly.

[0015] Further, the mold body is further provided with a rotation position sensor for detecting the rotation angle of the rotating mechanism.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. The utility model discloses a rear mold assembly, a first seat table and a second seat table, the first seat table and the second seat table can respectively inject materials of different colors to the rear mold assembly, the rear mold assembly is provided with a sliding mechanism and a rotating mechanism, the sliding mechanism and the rotating mechanism are used to automatically switch the working position of the rear mold assembly in different injection stages, the rear mold assembly can be close to the first seat table or the second seat table according to the injection requirement, which is favorable for reducing artificial intervention and the time of semi-finished product transfer, and effectively solves the problem that the same product can be injection molded by materials of multiple colors, however, in the injection process, the semi-finished product often needs to be transferred from one injection mold to another injection mold for continuous processing, which not only increases the production cost, but also reduces the production efficiency.

[0018] 2. By setting the injection molding machine control second seat station movement, while the sliding mechanism driven rear mold assembly smooth displacement, rotation mechanism driven rear mold assembly flexible rotation, and the automatic ejection mechanism of the molded product on the rear mold assembly, so that the mold body can realize the full process automation operation in the injection molding process, from the mold, injection molding, mold opening and taking the molded product, without manual intervention, help to reduce labor costs at the same time, effectively improve production efficiency.

[0019] The utility model will be further described below in connection with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure schematic drawing of the mold body of the utility model;

[0021] Figure 2 It is the structure schematic drawing of the rear mold mounting seat, sliding mechanism and rotation mechanism connection of the utility model;

[0022] Figure 3 It is the structure schematic drawing of the rear mold mounting seat, sliding mechanism and rotation mechanism connection of the utility model;

[0023] Figure 4 It is Figure 3 It is the enlarged schematic view of the B part of the mark;

[0024] Figure 5 It is the exploded schematic view of the rear mold mounting seat, sliding mechanism and rotation mechanism connection of the utility model. DETAILED DESCRIPTION

[0025] The embodiments of the utility model will be described in detail below in connection with the drawings.

[0026] As Figures 1 to 5 The multicolor injection mold shown in the utility model, including mold body 1, the mold body 1 includes rear mold assembly 2, the seat station assembly 3 for the injection of rear mold assembly 2, the seat station assembly 3 includes the first seat station 31 of fixedly arranged in one side of rear mold assembly 2, the second seat station 32 of movably arranged in the other side of rear mold assembly 2, the rear mold assembly 2 is equipped with the sliding mechanism 4 for driving rear mold assembly 2 relative to the first seat station 31 moves, and the rotation mechanism 5 for driving rear mold assembly 2 rotates, the sliding mechanism 4 and rotation mechanism 5 cooperate, so that rear mold assembly 2 is close to the first seat station 31 or the second seat station 32;

[0027] The utility model discloses a back mould assembly, first seat platform and second seat platform are set up, and first seat platform and second seat platform can respectively inject the material of different colors to back mould assembly, is equipped with sliding mechanism and rotating mechanism on back mould assembly, utilizes sliding mechanism and rotating mechanism, to make back mould assembly can switch the working position automatically in different injection stage, and back mould assembly can be close to first seat platform or second seat platform according to injection requirement, is favorable to reduce the time of artificial intervention and semi -finished product transfer, effectively solved the same product can through the injection molding of multiple colors of material quality, however, in the injection process, often need to transfer semi -finished product from one injection mold to another injection mold and continue processing, not only increased production cost, also reduced the problem of production efficiency.

[0028] Further, by setting the injection molding machine to control the second seat table 32 to move, at the same time, the sliding mechanism 4 drives the smooth displacement of the back mould assembly 2, the rotating mechanism 5 drives the flexible rotation of the back mould assembly 2, and the automatic ejection mechanism 6 ejects the molded product on the back mould assembly 2, so that the mold body 1 can realize full-process automatic operation during the injection molding process, from clamping, injection molding, opening and taking the molded product, without manual intervention, which is beneficial to reduce labor costs and effectively improve production efficiency.

[0029] Further, the number of back moulds for molding products on the seat table assembly 3 and the back mould assembly 2 can be multiple.

[0030] Optionally, in some embodiments, the seat assembly 3 comprises a fixedly arranged first seat 31 and a movably arranged second seat 32, the back mold assembly 2 comprises a back mold mounting seat 21 and a first back mold (not shown in the figure) for forming a product, the back mold mounting seat 21 is provided with a sliding mechanism 4 and a rotating mechanism 5, the first seat 31 and the second seat 32 are both provided with an injection molding machine at a side away from the back mold mounting seat 21, at the beginning of injection molding, the first back mold (not shown in the figure) is located on the back mold mounting seat 21 and close to a side of the first seat 31, the injection molding machine drives the second seat 32 to move towards the first seat 31 to complete the mold closing, the first seat 31 injects the first back mold, then the injection molding machine drives the second seat 32 to move away from the first seat 31 to form a rotating space for the first back mold, at this time, the sliding mechanism 4 drives the back mold mounting seat 21 to move away from the first seat 31, the first back mold moves to the rotating space, the rotating mechanism 5 drives the back mold mounting seat 21 to rotate to make the first back mold rotate from the side facing the first seat 31 to the side facing the second seat 32, the sliding mechanism 4 drives the back mold mounting seat 21 to move towards the first seat 31 to complete the reset, the injection molding machine drives the second seat 32 to move towards the first seat 31 to complete the mold closing, the second seat 32 injects the first back mold, after the injection molding is completed, finally, the injection molding machine drives the second seat 32 to move away from the first seat 31, the ejection mechanism 6 ejects the formed product on the first back mold, the ejection mechanism 6 resets, the sliding mechanism 4 drives the back mold mounting seat 21 to move away from the first seat 31, the first back mold moves to the rotating space, the rotating mechanism 5 drives the back mold mounting seat 21 to rotate to make the first back mold rotate from the side facing the second seat 32 to the side facing the first seat 31, the sliding mechanism 4 drives the back mold mounting seat 21 to move towards the first seat 31 to complete the reset.

[0031] Optionally, in some embodiments, the seat assembly 3 comprises a fixedly arranged first seat 31 and a movably arranged second seat 32, the back mold assembly 2 comprises a back mold mounting seat 21 and first and second back molds (not shown in the figure) for forming products, the back mold mounting seat 21 is provided with a sliding mechanism 4 and a rotating mechanism 5, the first seat 31 and the second seat 32 are both provided with injection molding machines on the side away from the back mold mounting seat 21, at the beginning of injection molding, the first back mold is located on the back mold mounting seat 21 and close to the side of the first seat 31, the second back mold (not shown in the figure) is located on the back mold mounting seat 21 and close to the side of the second seat 32, the injection molding machine drives the second seat 32 to move towards the first seat 31 to complete the mold closing, the first seat 31 injects the first back mold, then the injection molding machine drives the second seat 32 to move away from the first seat 31 to form a rotating space for the back mold mounting seat 21 to rotate, at this time, the sliding mechanism 4 drives the back mold mounting seat 21 to move away from the first seat 31, the back mold mounting seat 21 moves to the rotating space, and the rotating mechanism 5 drives the back mold mounting seat 21 to rotate, so that the first back mold rotates from the side facing the first seat 31 to the side facing the second seat 32, and the second back mold rotates from the side facing the second seat 32 to the side facing the first seat 31, the sliding mechanism 4 drives the back mold mounting seat 21 to move towards the first seat 31 to complete the reset, the injection molding machine drives the second seat 32 to move towards the first seat 31 to complete the mold closing, the first seat 31 injects the second back mold, at the same time, the second seat 32 injects the first back mold, the injection molding machine drives the second seat 32 to move away from the first seat 31 to complete the mold opening, the ejection mechanism 6 ejects the molded product on the first back mold, the ejection mechanism 6 resets, the sliding mechanism 4 drives the back mold mounting seat 21 to move away from the first seat 31, the back mold mounting seat 21 moves to the rotating space, and the rotating mechanism 5 drives the back mold mounting seat 21 to rotate, so that the first back mold rotates from the side facing the second seat 32 to the side facing the first seat 31, and the second back mold rotates from the side facing the first seat 31 to the side facing the second seat 32, the sliding mechanism 4 drives the back mold mounting seat 21 to move towards the first seat 31 to complete the reset, the injection molding machine drives the second seat 32 to move towards the first seat 31 to complete the mold closing, the first seat 31 injects the first back mold, the second seat 32 injects the second back mold, the injection molding machine drives the second seat 32 to move away from the first seat 31 to complete the mold opening, the ejection mechanism ejects the molded product on the second back mold, the ejection mechanism 6 resets, the sliding mechanism 4 drives the back mold mounting seat 21 to move away from the first seat 31, the back mold mounting seat 21 moves to the rotating space, and the rotating mechanism 5 drives the back mold mounting seat 21 to rotate, so that the first back mold rotates from the side facing the first seat 31 to the side facing the second seat 32, and the second back mold rotates from the side facing the second seat 32 to the side facing the first seat 31, the above actions are repeated to perform injection molding production,The first back mold and the second back mold are arranged to enable the mold body 1 to simultaneously perform injection molding of two products in different colors, thereby improving production efficiency.

[0032] Further, when the number of the seat assemblies 3 is two, the back mold mounting seat 21 is provided with the first back mold, or the back mold mounting seat 21 is provided with the first back mold and the second back mold, the seat assembly 3 and the back mold for molding the product are located on the same straight line, and the rotation mechanism 5 drives the back mold mounting seat 21 to rotate by an angle of 180° each time.

[0033] As shown in the first seat 31 and the second seat 32 are provided with injection molding machines, and the second seat 32 is close to or away from the first seat 31 to form a rotating space for the back mold assembly 2 to rotate. Figures 1 to 5

[0034] Further, the first seat 31 and the second seat 32 are provided with injection molding machines on the side away from the back mold assembly 2, so that the first seat 31 and the second seat 32 can respectively inject materials of different colors to the first back mold and the second back mold.

[0035] Further, the injection molding machines can drive the second seat 32 to move to form a rotating space for the back mold assembly 2 to rotate, which is beneficial to the mold body 1 to flexibly adapt to back mold assemblies 2 of different sizes and shapes. When the number of the seat assemblies is two, the back mold mounting seat 21 is provided with the first back mold, or the back mold mounting seat 21 is provided with the first back mold and the second back mold, the seat assembly 3 and the back mold for molding the product are located on the same straight line. At this time, the cross section of the back mold assembly 2 is rectangular. When the number of the seat assemblies is three, the back mold mounting seat 21 is provided with the first back mold, the second back mold, and the third back mold (not shown in the figure). At this time, the overall shape of the back mold assembly 2 is a triangular prism.

[0036] As shown in the first seat 31 and the second seat 32 are provided with injection molding machines, and the second seat 32 is close to or away from the first seat 31 to form a rotating space for the back mold assembly 2 to rotate. Figures 1 to 5

[0037] Optionally, in some embodiments, the back mold assembly 2 is provided with the first back mold, and the seat assembly 3 includes the first seat 31 and the second seat 32. At this time, the cross section of the back mold assembly 2 is rectangular, and the rotation mechanism 5 drives the back mold mounting seat 21 to rotate by an angle of 180° each time.

[0038] Optionally, in some embodiments, the back mold assembly 2 is provided with the first back mold and the second back mold, and the seat assembly 3 includes the first seat 31 and the second seat 32. At this time, the cross section of the back mold assembly 2 is rectangular, and the rotation mechanism 5 drives the back mold mounting seat 21 to rotate by an angle of 180° each time.

[0039] ​​Optionally, in some embodiments, the rear mold assembly 2 is provided with a first rear mold, a second rear mold and a third rear mold (not shown in the figure), and the base assembly 3 includes a first base 31, a second base 32 and a third base (not shown in the figure). In this case, the overall shape of the rear mold assembly 2 is a triangular prism, and the rotation mechanism 5 drives the rear mold mounting base 21 to rotate by an angle of 120° each time.

[0040] Optionally, in some embodiments, the rear mold assembly 2 is provided with a first rear mold, a second rear mold, a third rear mold and a fourth rear mold, and the base assembly 3 includes a first base 31, a second base 32, a third base (not shown in the figure) and a fourth base. In this case, the cross-section of the rear mold assembly 2 is rectangular, and the rotation mechanism 5 drives the rear mold mounting base 21 to rotate by 90° each time.

[0041] Specifically, several rear molds used for molding products are located on the rear mold mounting base 21. The sliding mechanism 4 and the rotating mechanism 5 are both connected to the rear mold mounting base 21, which can simultaneously drive several rear molds to move and rotate. This helps to reduce production cycle time and also helps to reduce investment in additional machines, effectively reducing production costs.

[0042] like Figures 1 to 5 The mold body 1 shown is provided with a mold connecting seat 11. The sliding mechanism 4 includes a sliding drive part 41 located on the mold connecting seat 11 and a sliding connecting block 42 connected to the output end of the sliding drive part 41 and connected to the rear mold mounting seat 21. A sliding gap is provided between the sliding connecting block 42 and the mold connecting seat 11 for the rear mold mounting seat 21 to move relative to the first base 31.

[0043] Optionally, in some embodiments, the sliding drive unit 41 is driven by a motor.

[0044] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the sliding drive unit 41 is hydraulically driven. Preferably, the sliding drive unit 41 is an HPS hydraulic cylinder, which can generate sufficient driving force to provide stable thrust.

[0045] Specifically, the sliding drive unit 41 is mounted on the mold connecting seat 11. The output end of the sliding drive unit 41 is connected to the sliding connecting block 42. The sliding connecting block 42 is connected to the top of the rear mold mounting seat 21. When the sliding drive unit 41 pushes or pulls the sliding connecting block 42, the rear mold mounting seat 21 and the sliding connecting block 42 move synchronously, so that the rear mold mounting seat 21 can move relative to each other.

[0046] like Figures 1 to 5The rear mold mounting base 21 shown is provided with a sliding connecting base 211 above it. The sliding mechanism 4 includes a sliding groove 43 located on the sliding connecting base 211 and a slide rail 44 located on the side of the mold connecting base 11 near the sliding connecting base 211 and slidably connected to the sliding groove 43.

[0047] Optionally, in some embodiments, the sliding mechanism 4 includes a sliding groove 43 located on the sliding connecting seat 211 and a sliding ball located on the side of the mold connecting seat 11 near the sliding connecting seat 211 and slidably connected to the sliding groove 43.

[0048] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the sliding mechanism 4 includes a sliding groove 43 located on the sliding connecting seat 211 and a slide rail 44 slidably connected to the sliding groove 43.

[0049] Optionally, the number of sliding grooves 43 and slide rails 44 can be several. Preferably, the rear mold mounting base 21 is provided with a first sliding groove 43 and a second sliding groove. The mold connecting base 11 is provided with a first slide rail that is slidably connected to the first sliding groove 43 and a second slide rail that is slidably connected to the second sliding groove on the side near the rear mold mounting base 21. Similarly, the bottom of the rear mold mounting base 21 is also provided with a sliding groove 43 and a slide rail 44.

[0050] Furthermore, by providing a sliding groove 43 on the sliding connecting seat 211 and a slide rail 44 that is slidably connected to the sliding groove 43 on the mold connecting seat 11, the smooth and precise movement of the rear mold mounting seat 21 is ensured, which helps to reduce friction and vibration during the movement process and effectively improves the smoothness and stability of the movement of the rear mold mounting seat 21.

[0051] like Figures 1 to 5 The mold connecting seat 11 shown is provided with a connecting groove 111 arranged along the moving direction of the rear mold mounting seat 21. The rotating mechanism 5 includes a rotary motor 51 and a rotating shaft 52 connected to the output end of the rotary motor 51 and passing through the connecting groove 111 to connect with the rear mold mounting seat 21.

[0052] Specifically, the output end of the rotary motor 51 is connected to the rotating shaft 52, and the rotating shaft 52 is connected to the top of the rear mold mounting base 21. When the rotary motor 51 operates normally, it drives the rotating shaft 52 to rotate, and the rear mold mounting base 21 rotates synchronously with the rotating shaft 52, thereby adjusting the position of several rear molds on the rear mold mounting base 21.

[0053] Furthermore, the rotary motor 51 enables several rear molds to quickly and accurately complete angle adjustments during the injection molding process, which helps reduce the time for rear mold replacement and adjustment and effectively improves production efficiency.

[0054] Further, by setting the connecting groove 111 on the mold connecting seat 11, the rotating shaft 52 penetrates the connecting groove 111 and is connected with the rear mold mounting seat 21, and the sliding driving part 41 and the sliding connecting block 42 are arranged on one side of the mold connecting seat 11, so that the overall structure of the mold body 1 is more compact, and the space occupation is reduced.

[0055] As shown in Figures 1 to 5 The rotating mechanism 5 includes a rotating connecting seat 53 for mounting the rotating motor 51, a vertical connecting block 54 arranged in the vertical direction and connecting the rotating connecting seat 53 and the rear mold mounting seat 21, and the sliding driving part 41 arranged in the horizontal direction and penetrating the vertical connecting block 54.

[0056] Further, the vertical connecting block 54 is arranged in the vertical direction and connects the rotating connecting seat 53 and the rear mold mounting seat 21, so as to form a stable and compact structure, thereby making the overall structure of the mold body 1 more solid and capable of bearing greater working load.

[0057] As shown in Figures 1 to 5 The rear mold assembly 2 includes a second rear mold arranged on the rear mold mounting seat 21 and used for forming products, and when the first rear mold is arranged close to the first seat table 31, the second rear mold is arranged close to the second seat table 32.

[0058] Further, by arranging the first rear mold and the second rear mold close to the first seat table 31 and the second seat table 32 respectively, the mold body 1 can form two products simultaneously in the injection molding process, which is beneficial to significantly improve the production efficiency, effectively reduce the molding cycle, and complete the injection molding of multiple products and multiple colors more quickly.

[0059] Further, the first rear mold and the second rear mold are arranged close to different seat tables in the injection molding process, so that the injection molding processes of the first rear mold and the second rear mold are relatively independent, which is beneficial to reduce the mutual interference in the molding process and effectively improve the molding precision of the products.

[0060] As shown in Figures 1 to 5 The mold body 1 is provided with an ejection mechanism 6 for ejecting the products formed by the rear mold assembly 2.

[0061] Specifically, the ejection mechanism 6 includes an HPS hydraulic cylinder and a ejector pin connected with the HPS hydraulic cylinder, when the products on the rear mold are formed, the HPS hydraulic cylinder pushes the ejector pin to push the products on the rear mold out, and then the HPS hydraulic cylinder pulls the ejector pin to move, and the reset is completed.

[0062] Further, the ejection mechanism 6 can ensure that the products formed are safely and effectively ejected from the rear mold, avoid damage of the products due to improper demolding, and ensure the continuity of the production process and the stability of the product quality.

[0063] Furthermore, the automated ejection mechanism 6 helps reduce the need for manual demolding, which in turn reduces labor intensity and operational risks, while increasing the degree of automation in production.

[0064] like Figures 1 to 5 The mold body 1 shown is also equipped with a rotation position sensor for detecting the rotation angle of the rotating mechanism 5;

[0065] Furthermore, the rotary position sensor can monitor the rotation angle of the rotary mechanism 5 in real time, which helps to ensure that the rear mold rotates at a preset angle during the injection molding process, thus helping to accurately control the molding process of the product and effectively improve the quality and precision of the product.

[0066] Furthermore, by monitoring the rotation position sensor, the rotation angle of the rotating mechanism 5 can be automatically adjusted, which helps to reduce the time for manual adjustment and verification, so that the rear mold can complete the rotation action quickly and accurately during the production process, effectively improving production efficiency.

[0067] The implementation method of Example 1 is as follows:

[0068] The seat assembly 3 comprises a first seat 31 and a second seat 32, the back mold assembly 2 comprises a back mold mounting seat 21 and a first back mold for forming a product, the first seat 31, the first back mold, the back mold mounting seat 21 and the second seat 32 are located on the same straight line, the first seat 31 and the second seat 32 are provided with injection molding machines on the side away from the back mold mounting seat 21, when injection molding starts, the first back mold is located on the back mold mounting seat 21 and close to the side of the first seat 31, the injection molding machine drives the second seat 32 to move towards the first seat 31, the mold is closed, the first seat 31 injects the first back mold, then the injection molding machine drives the second seat 32 to move away from the first seat 31, thereby forming a rotating space for the back mold mounting seat 21 to rotate, at this time, the sliding drive part 41 drives the sliding connecting block 42 to move towards the second seat 32, the back mold mounting seat 21 moves synchronously with the sliding connecting block 42, the back mold mounting seat 21 moves to the rotating space, the rotating motor 51 drives the rotating shaft 52 to rotate, the back mold mounting seat 21 rotates synchronously with the rotating shaft 52, the back mold mounting seat 21 rotates 180°, so that the first back mold rotates from the side facing the first seat 31 to the side facing the second seat 32, the sliding drive part 41 drives the back mold mounting seat 21 to move towards the first seat 31 through the sliding connecting block 42, the reset is completed, the injection molding machine drives the second seat 32 to move towards the first seat 31, the mold is closed, the second seat 32 injects the first back mold, the injection molding is completed, finally, the injection molding machine drives the second seat 32 to move away from the first seat 31, the ejection mechanism 6 ejects the formed product on the first back mold, the ejection mechanism 6 resets, the sliding drive part 41 drives the back mold mounting seat 21 to move away from the first seat 31 through the sliding connecting block 42, the back mold mounting seat 21 moves to the rotating space, the rotating motor 51 drives the back mold mounting seat 21 to rotate 180° through the rotating shaft 52, so that the first back mold rotates from the side facing the second seat 32 to the side facing the first seat 31, the sliding drive part 41 drives the back mold mounting seat 21 to move towards the first seat 31 through the sliding connecting block 42, the reset is completed.

[0069] The implementation of Example 2 is as follows:

[0070] The difference between the embodiment 2 and the embodiment 1 is that the seat assembly 3 comprises a first seat 31 and a second seat 32, the back mold assembly 2 comprises a back mold mounting seat 21 and a first back mold and a second back mold for forming products, the first seat 31, the first back mold, the back mold mounting seat 21, the second back mold and the second seat 32 are located on the same straight line, the first seat 31 and the second seat 32 are provided with injection molding machines on the sides away from the back mold mounting seat 21, when the injection molding starts, the first back mold is located on the back mold mounting seat 21 and close to the side of the first seat 31, the second back mold is located on the back mold mounting seat 21 and close to the side of the second seat 32, the injection molding machine drives the second seat 32 to move towards the first seat 31, the mold is closed, the first seat 31 injects the first back mold, then the injection molding machine drives the second seat 32 to move away from the first seat 31, so as to form a rotating space for the back mold mounting seat 21 to rotate, at this time, the sliding driving part 41 drives the back mold mounting seat 21 to move away from the first seat 31 through the sliding connecting block 42, the back mold mounting seat 21 moves to the rotating space, the rotating motor 51 drives the back mold mounting seat 21 to rotate 180° through the rotating shaft 52, so that the first back mold rotates from the side facing the first seat 31 to the side facing the second seat 32, and the second back mold rotates from the side facing the second seat 32 to the side facing the first seat 31, the sliding driving part 41 drives the back mold mounting seat 21 to move towards the first seat 31 through the sliding connecting block 42, the reset is completed, the injection molding machine drives the second seat 32 to move towards the first seat 31, the mold is closed, the first seat 31 injects the second back mold, at the same time, the second seat 32 injects the first back mold, the injection molding machine drives the second seat 32 to move away from the first seat 31, the mold is opened, the ejection mechanism 6 ejects the formed product on the first back mold, the ejection mechanism 6 resets, the sliding driving part 41 drives the back mold mounting seat 21 to move away from the first seat 31 through the sliding connecting block 42, the back mold mounting seat 21 moves to the rotating space, the rotating motor 51 drives the back mold mounting seat 21 to rotate 180° through the rotating shaft 52, so that the first back mold rotates from the side facing the second seat 32 to the side facing the first seat 31, and the second back mold rotates from the side facing the first seat 31 to the side facing the second seat 32, the sliding driving part 41 drives the back mold mounting seat 21 to move towards the first seat 31 through the sliding connecting block 42, the reset is completed, the injection molding machine drives the second seat 32 to move towards the first seat 31, the mold is closed, the first seat 31 injects the first back mold, the second seat 32 injects the second back mold, the injection molding machine drives the second seat 32 to move away from the first seat 31, the mold is opened, the ejection mechanism 6 ejects the formed product on the second back mold, the ejection mechanism 6 resets, the sliding driving part 41 drives the back mold mounting seat 21 to move away from the first seat 31 through the sliding connecting block 42, the back mold mounting seat 21 moves to the rotating space, the rotating motor 51 drives the back mold mounting seat 21 to rotate 180° through the rotating shaft 52,The first rear mold is rotated from the side facing the first seat 31 to the side facing the second seat 32, and the second rear mold is rotated from the side facing the second seat 32 to the side facing the first seat 31, and the above actions are repeated to produce injection molding, and the first rear mold and the second rear mold are arranged to enable the mold body 1 to simultaneously perform injection molding of different colors on two products, thereby improving production efficiency.

[0071] The embodiments of example 3 are as follows:

[0072] The difference between the embodiment 3 and the embodiment 1 is that the seat assembly 3 comprises a first seat 31, a second seat 32 and a third seat, the back mold assembly 2 comprises a back mold mounting seat 21 and a first back mold, a second back mold and a third back mold for forming products, the first seat 31, the second seat 32 and the third seat enclose a triangle in cross section, the back mold mounting seat 21, the first back mold, the second back mold and the third back mold are in the shape of a triangular prism as a whole, the first seat 31, the second seat 32 and the third seat are each provided with an injection molding machine on the side away from the back mold mounting seat 21, at the beginning of injection molding, the first back mold is located on the back mold mounting seat 21 and close to the side of the first seat 31, the second back mold is located on the back mold mounting seat 21 and close to the side of the second seat 32, the third back mold is located on the back mold mounting seat 21 and close to the side of the third seat, the injection molding machine drives the second seat 32 and the third seat to move towards the first seat 31 to complete the mold clamping, the first seat 31 injects towards the first back mold, then the injection molding machine drives the second seat 32 and the third seat to move away from the first seat 31 to form a rotating space for the back mold mounting seat 21 to rotate, at this time, the sliding drive part 41 drives the back mold mounting seat 21 to move away from the first seat 31 through the sliding connecting block 42, the back mold mounting seat 21 moves to the rotating space, the rotary motor 51 drives the back mold mounting seat 21 to rotate 120° through the rotating shaft 52, so that the first back mold rotates from the side facing the first seat 31 to the side facing the second seat 32, the second back mold rotates from the side facing the second seat 32 to the side facing the third seat, and the third back mold rotates from the side facing the third seat to the side facing the first seat 31, the sliding drive part 41 drives the back mold mounting seat 21 to move towards the first seat 31 through the sliding connecting block 42 to complete the reset, the injection molding machine drives the second seat 32 and the third seat to move towards the first seat 31 to complete the mold clamping, the first seat 31 injects towards the third back mold, at the same time, the second seat 32 injects towards the first back mold and the third seat injects towards the second back mold, the injection molding machine drives the second seat 32 and the third seat to move away from the first seat 31 to complete the mold opening, the sliding drive part 41 drives the back mold mounting seat 21 to move away from the first seat 31 through the sliding connecting block 42, the back mold mounting seat 21 moves to the rotating space, the rotary motor 51 drives the back mold mounting seat 21 to rotate 120° through the rotating shaft 52, so that the first back mold rotates from the side facing the second seat 32 to the side facing the third seat, the second back mold rotates from the side facing the third seat to the side facing the first seat 31, and the third back mold rotates from the side facing the first seat 31 to the side facing the second seat 32, the sliding drive part 41 drives the back mold mounting seat 21 to move towards the first seat 31 through the sliding connecting block 42 to complete the reset, the injection molding machine drives the second seat 32 and the third seat to move towards the first seat 31 to complete the mold clamping, the first seat 31 injects towards the second back mold, at the same time, the second seat 32 injects towards the third back mold and the third seat injects towards the first back mold,The injection molding machine drives the second and third platforms 32 and 32 to move away from the first platform 31, completes the mold opening, the ejection mechanism 6 ejects the molded product on the first back mold, the ejection mechanism 6 resets, the sliding driving part 41 drives the back mold mounting seat 21 to move away from the first platform 31 through the sliding connecting block 42, the rotary motor 51 drives the back mold mounting seat 21 to rotate 120° through the rotating shaft 52, so that the first back mold is rotated from the side facing the third platform to the side facing the first platform 31, the second back mold is rotated from the side facing the first platform 31 to the side facing the second platform 32, and the third back mold is rotated from the side facing the second platform 32 to the side facing the third platform, the sliding driving part 41 drives the back mold mounting seat 21 to move towards the first platform 31 through the sliding connecting block 42, completes the reset, the injection molding machine drives the second and third platforms 32 and 32 to move towards the first platform 31, completes the mold closing, the first platform 31 injects the first back mold, at the same time, the second platform 32 injects the second back mold, and the third platform 32 injects the third back mold, the injection molding machine drives the second and third platforms 32 and 32 to move away from the first platform 31, completes the mold opening, the ejection mechanism 6 ejects the molded product on the second and third back molds at the same time, the ejection mechanism 6 resets, the sliding driving part 41 drives the back mold mounting seat 21 to move away from the first platform 31 through the sliding connecting block 42, the rotary motor 51 drives the back mold mounting seat 21 to rotate 120° through the rotating shaft 52, so that the first back mold is rotated from the side facing the first platform 31 to the side facing the second platform 32, the second back mold is rotated from the side facing the second platform 32 to the side facing the third platform, and the third back mold is rotated from the side facing the third platform to the side facing the first platform 31, and the above actions are repeatedly circulated to perform injection molding production.

[0073] The above only further illustrates the technical content of the utility model with examples, so that the reader can more easily understand, but does not represent that the embodiment of the utility model is limited to this, any technical extension or re-creation made according to the utility model is protected by the utility model. The protection scope of the utility model is subject to the patent claim.

Claims

1. Multicolour injection mould comprising a mould body (1), characterised in that: The mold body (1) comprises a back mold assembly (2), a seat base assembly (3) for injection molding to the back mold assembly (2), the seat base assembly (3) comprises a first seat base (31) fixedly arranged on one side of the back mold assembly (2), and a second seat base (32) movably arranged on the other side of the back mold assembly (2), the back mold assembly (2) is provided with a sliding mechanism (4) for driving the back mold assembly (2) to move relative to the first seat base (31), and a rotating mechanism (5) for driving the back mold assembly (2) to rotate, the sliding mechanism (4) and the rotating mechanism (5) are matched to make the back mold assembly (2) close to the first seat base (31) or the second seat base (32).

2. The multi-color injection mold of claim 1, wherein: The second seat base (32) is provided with an injection molding machine, and the second seat base (32) is close to or away from the first seat base (31) through the injection molding machine to form a rotating space for the back mold assembly (2) to rotate.

3. The multi-color injection mold of claim 2, wherein: The back mold assembly (2) comprises a back mold mounting seat (21) connected with the sliding mechanism (4) and the rotating mechanism (5) respectively, and a first back mold for forming a product on the back mold mounting seat (21).

4. The multi-color injection mold of claim 3, wherein: The mold body (1) is provided with a mold connecting seat (11), the sliding mechanism (4) comprises a sliding driving part (41) on the mold connecting seat (11), a sliding connecting block (42) connected with the output end of the sliding driving part (41) and connected with the back mold mounting seat (21), and a sliding gap between the sliding connecting block (42) and the mold connecting seat (11) for the back mold mounting seat (21) to move relative to the first seat base (31).

5. The multi-color injection mold of claim 4, wherein: The back mold mounting seat (21) is provided with a sliding connecting seat (211) above, the sliding mechanism (4) comprises a sliding groove (43) on the sliding connecting seat (211), and a sliding rail (44) on the side of the mold connecting seat (11) close to the sliding connecting seat (211) and connected with the sliding groove (43).

6. The multi-color injection mold of claim 4, wherein: The mold connecting seat (11) is provided with a connecting groove (111) arranged along the moving direction of the back mold mounting seat (21), and the rotating mechanism (5) comprises a rotating motor (51), a rotating shaft (52) connected with the output end of the rotating motor (51) and penetrating through the connecting groove (111) and connected with the back mold mounting seat (21).

7. The multi-color injection mold of claim 6, wherein: The rotating mechanism (5) comprises a rotating connecting seat (53) for mounting the rotating motor (51), a vertical connecting block (54) arranged in a vertical direction and used for connecting the rotating connecting seat (53) and the back mold mounting seat (21), and the sliding driving part (41) is arranged in a horizontal direction and penetrates through the vertical connecting block (54).

8. The multi-color injection mold of claim 3, wherein: The back mold assembly (2) comprises a second back mold for forming a product on the back mold mounting seat (21), and when the first back mold is located on the side close to the first seat base (31), the second back mold is located on the side close to the second seat base (32).

9. The multi-color injection mold of claim 1, wherein: The mold body (1) is provided with an ejection mechanism (6) for ejecting the molded product of the rear mold assembly (2).

10. The multi-color injection mold of claim 1, wherein: The mold body (1) is further provided with a rotation position sensor for detecting the rotation angle of the rotation mechanism (5).

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