Multi-color integrally-formed injection mold

Abstract

The invention relates to the technical field of injection molds, and particularly discloses a multicolor integrally-formed injection mold which comprises a mold frame, and a fixed mold assembly is mounted on the mold frame; a movable mold assembly matched with the fixed mold assembly is further arranged on the mold frame; and a power mechanism used for driving the movable mold assembly to move is further arranged on the mold frame, so that the movable mold assembly rotates and slides on the mold frame and is in intermittent fit with the fixed mold assembly, and injection molding of a product is achieved. Therefore, in the using process of the injection mold, firstly, the movable mold assembly and the fixed mold assembly are driven to be closed through the power mechanism. After one-time injection molding is completed, the power mechanism is used for driving the movable mold assembly and the fixed mold assembly to be separated, the power mechanism is used for driving the movable mold assembly to rotate by 120 degrees and then driving the movable mold assembly and the fixed mold assembly to be assembled again, and injection molding of a product continues to be completed, so that injection molding operation of multiple colors or multiple materials can be completed on the injection mold; and the practicability of the injection mold is improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to a multi-color integrated injection mold. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into complex-shaped parts. Injection molding is suitable for mass production and complex-shaped products and other molding and processing fields.

[0003] Injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise size. When using injection molds for molding, the completely molten plastic material is stirred by a screw at a certain temperature and injected into the mold cavity with high pressure. After cooling and solidification, the molded product is obtained. Injection molds are suitable for mass production of parts with complex shapes and are one of the important processing methods.

[0004] Three-color plastic parts refer to plastic parts with a clear boundary between two colors of plastic. The molding method of using two or more injection systems to inject different types or colors of plastic into the mold simultaneously or successively is called three-color injection molding, and the mold used is called three-color injection molding mold. As people's requirements for the appearance and function of plastic products continue to increase, the demand for three-color molds is increasing.

[0005] The injection mold in the prior art, such as the Chinese patent with application number 202220612183.2, authorization announcement number CN217346459U, and name of a single-set mold double-color mold installation structure that can be used for an ordinary injection molding machine, discloses a single-set mold double-color mold installation structure that can be used for an ordinary injection molding machine. The installation structure of the single-set mold double-color mold that can be used for an ordinary injection molding machine includes: a mold, on which an injection molding mechanism and a fixing mechanism are arranged; the injection molding mechanism includes a first color glue inlet pipe, a second color glue inlet pipe, a hot runner heating plate, a cylinder, a slider, a T-block, an injection molding sub-shooting platform, a hopper, an injection molding cylinder and an injection molding nozzle, the first color glue inlet pipe is arranged on the mold, and the second color glue inlet pipe is arranged on the mold.

[0006] The injection mold in the above patent can be used to injection mold the second color product, and at the same time, the injection molding sub-shooting station can be quickly installed directly on the mold, which reduces the mold manufacturing cost and injection molding production cost. It can be used for the installation structure of a single set of molds and two-color molds on ordinary injection molding machines. The existing technology, such as the above patent, meets the needs of injection molds to a certain extent. However, after the first injection molding, the movable mold can only be driven to separate from the fixed mold, and then the movable mold can be driven to rotate to a predetermined angle by a separate driving device before the movable mold can be combined with another fixed mold, which affects the work efficiency. Summary of the invention

[0007] The object of the present invention is to provide a multi-color integrated injection mold to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-color integrated injection mold, comprising a mold frame, on which a fixed mold assembly is installed; the mold frame is also provided with a movable mold assembly adapted to the fixed mold assembly; the mold frame is also provided with a power mechanism for driving the movable mold assembly to move, so that the movable mold assembly rotates and slides on the mold frame, and intermittently cooperates with the fixed mold assembly to realize the injection molding of the product.

[0009] Furthermore, the movable mold assembly includes a movable mold 1, a movable mold 2 and a movable mold 3, and also includes a bearing plate, and the movable mold 1, the movable mold 2 and the movable mold 3 are all installed on the bearing plate.

[0010] Furthermore, the fixed mold assembly includes fixed mold 1, fixed mold 2 and fixed mold 3, and the fixed mold 1, fixed mold 2 and fixed mold 3 are installed on the mold frame through a fixed plate, and the movable mold 1, movable mold 2 and movable mold 3 are intermittently adapted with the fixed mold 1, fixed mold 2 and fixed mold 3 to realize the injection molding operation of the product.

[0011] Furthermore, a plurality of groups of limiting members are arranged between the fixed mold assembly and the movable mold assembly; the limiting members include limiting columns fixedly connected to the movable mold assembly, the fixed mold assembly is provided with a plurality of groups of adapting grooves adapted to the limiting columns, and the limiting columns are slidably connected to the adapting grooves.

[0012] Furthermore, a power plate is rotatably connected to the mold frame, and the bearing plate is mounted on the power plate.

[0013] Furthermore, the power mechanism comprises a telescopic support cylinder installed between the mold frame and the power plate, and a rotating component for driving the power plate to rotate is arranged between the mold frame and the telescopic support cylinder.

[0014] Furthermore, the rotating assembly includes a power rod rotatably connected to the mold frame, a driving ring is fixedly connected to the power rod, and a plurality of groups of meshing teeth are intermittently arranged on the driving ring, and the plurality of groups of meshing teeth are distributed in a circular array on the circumferential side of the driving ring; a spur gear is installed on the telescopic support cylinder, and the plurality of groups of meshing teeth are intermittently meshed with the spur gear; a servo motor is installed on the mold frame, and the output end of the servo motor is coaxially connected to the power rod.

[0015] Furthermore, a plurality of groups of limiting telescopic rods are arranged between the mold frame and the power plate; the limiting telescopic rods include a rod body fixedly connected to the power plate, and also include a bearing cylinder, and the bearing cylinder is rotatably connected to the mold frame through a mounting unit.

[0016] Furthermore, the installation unit includes a roller rotatably connected to the bottom of the supporting cylinder, an annular groove is provided on the mold frame, and the roller is installed in the annular groove.

[0017] Furthermore, the telescopic support cylinder includes a positioning cylinder and a support rod, the support rod is fixedly connected to the power plate, and the support rod is slidably connected to the positioning cylinder, and a servo cylinder is arranged between the support rod and the positioning cylinder to drive the support rod to slide in the positioning cylinder.

[0018] Compared with the prior art, the beneficial effect of the present invention is that the multi-color one-piece injection mold is formed through the cooperation between the mold frame, the fixed mold assembly, the movable mold assembly and the power mechanism. Therefore, during the use of the injection mold, the movable mold assembly and the fixed mold assembly are first driven by the power mechanism to close the mold. After completing one injection, the power mechanism is used to drive the movable mold assembly to separate from the fixed mold assembly, and the power mechanism is used to drive the movable mold assembly to rotate 120° and then drive the movable mold assembly and the fixed mold assembly to close the mold again, and continue to complete the injection molding of the product. Therefore, the injection molding operation of multiple colors or multiple materials can be completed on the injection mold, which greatly improves the practicality of the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A structural schematic diagram of a movable mold installation method provided in an embodiment of the present invention;

[0021] Figure 2 A structural schematic diagram of a fixed mold installation method provided in an embodiment of the present invention;

[0022] Figure 3A schematic diagram of the overall structure of a mold frame provided by an embodiment of the present invention;

[0023] Figure 4 A schematic structural diagram of the mold frame as a whole from another perspective provided by an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the structure of the power board installation method provided by an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of a state where a movable mold assembly and a fixed mold assembly are separated according to an embodiment of the present invention;

[0026] Figure 7 A schematic diagram of the structure of the installation method of the rotating assembly provided in an embodiment of the present invention;

[0027] Figure 8 A schematic diagram of a partial structure of a rotating assembly provided in an embodiment of the present invention;

[0028] Fig. 9 A schematic diagram of the structure of the servo cylinder installation method provided in an embodiment of the present invention;

[0029] Fig.10 A schematic structural diagram of the annular groove opening method provided in an embodiment of the present invention.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. mold frame; 2. bearing plate; 3. movable mold 1; 4. movable mold 2; 5. movable mold 3; 6. fixed plate; 7. fixed mold 1; 8. fixed mold 2; 9. fixed mold 3; 10. limiter; 11. power plate; 12. limit telescopic rod; 121. rod body; 122. bearing cylinder; 13. telescopic support cylinder; 14. rotating assembly; 141. spur gear; 142. driving ring; 143. meshing teeth; 144. power rod; 15. servo cylinder; 16. roller; 17. annular groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 10 The present invention provides a technical solution: a multi-color integrated injection mold, comprising a mold frame 1, on which a fixed mold assembly is installed; the mold frame 1 is also provided with a movable mold assembly adapted to the fixed mold assembly; the mold frame 1 is also provided with a power mechanism for driving the movable mold assembly to move, so that the movable mold assembly rotates and slides on the mold frame 1, and intermittently cooperates with the fixed mold assembly to realize the injection molding of the product.

[0033] Specifically, the multi-color integrated injection mold includes a mold frame 1, on which a fixed mold assembly is installed. Specifically, the fixed mold assembly is provided with an injection channel for injecting raw materials into the fixed mold assembly to achieve the injection molding of the product. The mold frame 1 is also provided with a movable mold assembly adapted to the fixed mold assembly, wherein the movable mold assembly is adapted to the fixed mold assembly to meet the injection molding requirements of the product. The mold frame 1 is also provided with a power mechanism for driving the movable mold assembly to move, so that the movable mold assembly rotates and slides on the mold frame 1, and intermittently cooperates with the fixed mold assembly to achieve the injection molding of the product. For this reason, during the use of the injection mold, the power mechanism is first used to drive the movable mold assembly and the fixed mold assembly to close the mold. After completing one injection, the power mechanism is used to drive the movable mold assembly to separate from the fixed mold assembly, and the power mechanism is used to drive the movable mold assembly to rotate 120° and then drive the movable mold assembly and the fixed mold assembly to close the mold again, and continue to complete the injection molding of the product. Therefore, injection molding operations of multiple colors or multiple materials can be completed on the injection mold, which greatly improves the practicality of the injection mold.

[0034] In the embodiment provided by the present invention, the movable mold assembly includes movable mold 1 3, movable mold 2 4 and movable mold 3 5, and also includes a supporting plate 2. The movable mold 1 3, movable mold 2 4 and movable mold 3 5 are all installed on the supporting plate 2. Therefore, the injection mold can injection mold plastic products of three colors and different plastic materials in one cycle, and the use effect is better.

[0035] In the embodiment provided by the present invention, the fixed mold assembly includes a fixed mold 1 7, a fixed mold 2 8 and a fixed mold 3 9, and the fixed mold 1 7, the fixed mold 2 8 and the fixed mold 3 9 are installed on the mold frame 1 through a fixed plate 6, and the movable mold 1 3, the movable mold 2 4 and the movable mold 3 5 are intermittently matched with the fixed mold 1 7, the fixed mold 2 8 and the fixed mold 3 9 to realize the injection molding operation of the product. Therefore, during use, the fixed mold 1 7 is first matched with the movable mold 1 3, the fixed mold 2 8 is matched with the movable mold 2 4, and the fixed mold 3 9 is matched with the movable mold 3 5. After completing one injection molding, the movable mold assembly is driven to rotate by the power mechanism. When the movable mold assembly rotates, the fixed mold 1 7 is matched with the movable mold 2 4, the fixed mold 2 8 is matched with the movable mold 3 5, and the fixed mold 3 9 is matched with the movable mold 1 3, and the cycle is repeated, so that three colors or three different plastic materials of plastic products are realized in one injection molding cycle.

[0036] In the embodiment provided by the present invention, a plurality of groups of limiters 10 are arranged between the fixed mold assembly and the movable mold assembly; the limiters 10 include limiter columns fixedly connected to the movable mold assembly, and a plurality of groups of adapting grooves adapted to the limiter columns are provided on the fixed mold assembly, and the limiter columns are slidably connected to the adapting grooves, thereby improving the stability of the fixed mold assembly and the fixed mold assembly when opening and closing the mold, and achieving a better use effect. More specifically, the limiter columns are fixedly connected to the fixed mold assembly, that is, the limiter columns are fixedly connected to the fixed mold 1 7, the fixed mold 2 8, and the fixed mold 3 9, and similarly, the movable mold 1 3, the movable mold 2 4, and the movable mold 3 5 are provided with limiter grooves adapted to the limiter columns, thereby further improving the stability of the movable mold assembly and the fixed mold assembly when opening and closing the mold, and achieving a better use effect.

[0037] In the embodiment provided by the present invention, a power plate 11 is rotatably connected to the mold frame 1, and the support plate 2 is installed on the power plate 11. When the power plate 11 moves, it drives the support plate 2 to move, so as to realize the movement of the movable mold assembly.

[0038] In the embodiment provided by the present invention, the power mechanism includes a telescopic support tube 13 installed between the mold frame 1 and the power plate 11, and a rotating component 14 for driving the power plate 11 to rotate is arranged between the mold frame 1 and the telescopic support tube 13, and the rotating component 14 includes a power rod 144 rotatably connected to the mold frame 1, and a driving ring 142 is fixedly connected to the power rod 144, and a plurality of groups of meshing teeth 143 are intermittently arranged on the driving ring 142, and the plurality of groups of meshing teeth 143 are distributed in a circular array on the circumferential side of the driving ring 142; a spur gear 141 is installed on the telescopic support tube 13, and the plurality of groups of meshing teeth 143 are intermittently meshed with the spur gear 141; a servo motor is installed on the mold frame 1, and the output end of the servo motor is coaxially connected to the power rod 144. Specifically, when the meshing teeth 143 drive the spur gear 141 to rotate, the spur gear 141 can drive the power rod 144 to rotate by an angle of 120°, which can ensure that the corresponding movable mold assembly can be molded with the fixed mold assembly again, thereby completing the subsequent injection molding operation.

[0039] In the embodiment provided by the present invention, a plurality of groups of limiting telescopic rods 12 are arranged between the mold frame 1 and the power plate 11; the limiting telescopic rods 12 include a rod body 121 fixedly connected to the power plate 11, and also include a carrying cylinder 122, and the carrying cylinder 122 is rotatably connected to the mold frame 1 through an installation unit. Therefore, when the carrying plate 2 slides downward, it will drive the rod body 121 to slide inside the carrying cylinder 122, thereby realizing the opening and closing operations of the movable mold assembly and the fixed mold assembly, thereby greatly improving the practicability of the injection mold.

[0040] In the embodiment provided by the present invention, the installation unit includes a roller 16 rotatably connected to the bottom of the supporting cylinder 122, and an annular groove 17 is opened on the mold frame 1. The roller 16 is installed in the annular groove 17. Therefore, when the power plate 11 rotates, it will drive the supporting cylinder 122 to rotate inside the mold frame 1. At this moment, the roller 16 on the supporting cylinder 122 will roll inside the annular groove 17, thereby reducing the friction force when the power plate 11 rotates, and the use effect is better.

[0041] In the embodiment provided by the present invention, the telescopic support cylinder 13 includes a positioning cylinder and a support rod. The support rod is fixedly connected to the power plate 11, and the support rod is slidably connected to the positioning cylinder. A servo cylinder 15 is arranged between the support rod and the positioning cylinder for driving the support rod to slide in the positioning cylinder, thereby providing a power source for opening and closing the movable mold assembly and the fixed mold assembly, and the use effect is better.

[0042] It should be noted that the electrical equipment involved in this application can be powered by batteries or external power supply.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-color integrated injection mold, comprising a mold frame (1), characterized in that: A fixed mold assembly is installed on the mold frame (1); a movable mold assembly adapted to the fixed mold assembly is also arranged on the mold frame (1); The mold frame (1) is also provided with a power mechanism for driving the movable mold assembly to move, so that the movable mold assembly can rotate and slide on the mold frame (1) and intermittently cooperate with the fixed mold assembly to achieve injection molding of the product.

2. The multi-color integrated injection mold according to claim 1, characterized in that: The movable mold assembly comprises a movable mold 1 (3), a movable mold 2 (4) and a movable mold 3 (5), and also comprises a bearing plate (2), and the movable mold 1 (3), the movable mold 2 (4) and the movable mold 3 (5) are all mounted on the bearing plate (2).

3. The multi-color integrated injection mold according to claim 2, characterized in that: The fixed mold assembly comprises a fixed mold 1 (7), a fixed mold 2 (8) and a fixed mold 3 (9), wherein the fixed mold 1 (7), the fixed mold 2 (8) and the fixed mold 3 (9) are mounted on a mold frame (1) via a fixed plate (6), and the movable mold 1 (3), the movable mold 2 (4) and the movable mold 3 (5) are intermittently matched with the fixed mold 1 (7), the fixed mold 2 (8) and the fixed mold 3 (9) to realize the injection molding operation of the product.

4. The multi-color integrated injection mold according to claim 1, characterized in that: A plurality of groups of limiting members (10) are arranged between the fixed mold assembly and the movable mold assembly; The limiting member (10) comprises a limiting column fixedly connected to the movable mold assembly, and the fixed mold assembly is provided with a plurality of groups of matching grooves matching the limiting column, and the limiting column is slidably connected to the matching grooves.

5. The multi-color integrated injection mold according to claim 1, characterized in that: The mold frame (1) is rotatably connected to a power plate (11), and the bearing plate (2) is mounted on the power plate (11).

6. The multi-color integrated injection mold according to claim 5, characterized in that: The power mechanism comprises a telescopic support cylinder (13) installed between the mold frame (1) and the power plate (11), and a rotating assembly (14) for driving the power plate (11) to rotate is arranged between the mold frame (1) and the telescopic support cylinder (13).

7. The multi-color integrated injection mold according to claim 6, characterized in that: The rotating assembly (14) comprises a power rod (144) rotatably connected to the mold frame (1), a driving ring (142) is fixedly connected to the power rod (144), and a plurality of groups of meshing teeth (143) are intermittently arranged on the driving ring (142), and the plurality of groups of meshing teeth (143) are distributed in a circumferential array on the circumferential side of the driving ring (142); A spur gear (141) is mounted on the telescopic support cylinder (13), and a plurality of groups of meshing teeth (143) intermittently mesh with the spur gear (141); A servo motor is installed on the mold frame (1), and the output end of the servo motor (145) is coaxially connected to the power rod (144).

8. The multi-color integrated injection mold according to claim 6, characterized in that: A plurality of groups of position-limiting telescopic rods (12) are arranged between the mold frame (1) and the power plate (11); the position-limiting telescopic rods (12) comprise a rod body (121) fixedly connected to the power plate (11), and also comprise a bearing cylinder (122); the bearing cylinder (122) is rotatably connected to the mold frame (1) via a mounting unit.

9. The multi-color integrated injection mold according to claim 8, characterized in that: The installation unit comprises a roller (16) rotatably connected to the bottom of the supporting cylinder (122); an annular groove (17) is provided on the mold frame (1), and the roller (16) is installed in the annular groove (17).

10. The multi-color integrated injection mold according to claim 6, characterized in that: The telescopic support cylinder (13) comprises a positioning cylinder and a support rod, wherein the support rod is fixedly connected to the power plate (11) and slidably connected to the positioning cylinder, and a servo cylinder (15) is provided between the support rod and the positioning cylinder for driving the support rod to slide in the positioning cylinder.

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