Integrally-formed injection mold

Abstract

The utility model discloses an integrally formed injection mold, which relates to the technical field of injection molds, and adopts the technical scheme that the integrally formed injection mold comprises an injection mold movable mold body, an injection mold fixed mold body is arranged on one side of the injection mold movable mold body, the injection mold fixed mold body comprises an injection mold fixed mold main body, and a forming mold cavity and a cavity are formed in the injection mold fixed mold main body; the integrally-formed injection mold has the beneficial effects that the ejector pin assembly is located in the cavity, so that the ejector pin assembly is located in the sealed space, sundries are prevented from entering the cavity when the ejector pin assembly operates, and the injection molding quality is improved. The ejector pin driving plate is always in a clean state during operation, sundries are prevented from entering the space between the ejector pin driving plate and the cavity, the stroke of the ejector pin driving plate is further prevented from being influenced by the sundries during operation, and the ejector pin stably performs ejection and demolding.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an integrally formed injection mold. Background Art

[0002] An injection mold is a tool for producing plastic products and also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to the high-pressure injection of heated and molten plastic into the mold cavity by an injection molding machine. After cooling and solidification, a molded product is obtained. Although the structure of the mold may vary depending on the type and performance of the plastic, the shape and structure of the plastic product, and the type of injection molding machine, etc.

[0003] When an existing injection mold forms an injection molded part, it is necessary to use an ejector pin to eject the integrally formed injection molded part out of the fixed mold cavity to achieve automatic demolding of the injection molded part. The existing mold ejector pin structure is set outside the mold. Long-term use can easily cause foreign matter to be present between the ejector pin drive plate and the mold, resulting in an incorrect ejection or retraction distance of the ejector pin, which affects the demolding of the completed injection molded part. Utility Model Content

[0004] To this end, the utility model provides an integrally formed injection mold, in which an ejector assembly is arranged to solve the problem that the mold ejector structure is arranged outside the mold, and long-term use easily causes foreign matter to be present between the ejector drive plate and the mold, resulting in an incorrect ejection or retraction distance of the ejector, thereby affecting the demolding of the completed injection molded parts.

[0005] In order to achieve the above-mentioned object, the utility model provides the following technical solution: an integrally formed injection mold, comprising an injection mold movable mold body, an injection mold fixed mold body is provided on one side of the injection mold movable mold body, the injection mold fixed mold body comprises an injection mold fixed mold main body, a molding mold cavity and a cavity are opened inside the injection mold fixed mold main body, a plurality of ejector holes are opened between the molding mold cavity and the cavity, a fixed mold connecting seat is fixedly provided on one side of the injection mold fixed mold main body, an ejector assembly is provided inside the injection mold fixed mold main body, and the ejector assembly comprises a driving motor, the driving motor is fixedly provided on one side of the injection mold fixed mold main body, the output end of the driving motor is fixedly connected to a transmission shaft, a worm is fixedly sleeved on the outside of the transmission shaft, a worm gear is provided at the bottom of the worm, the worm is meshed with the worm gear, a threaded rod is fixedly inserted inside the worm gear, an ejector driving plate is provided on the outside of the threaded rod, and a plurality of ejectors are fixedly provided on one side of the ejector driving plate.

[0006] Preferably, the transmission shaft passes through both side walls of the cavity and is connected to both side walls of the cavity via bearings.

[0007] Preferably, the worm is meshed with a worm wheel.

[0008] Preferably, one end of the threaded rod is connected to a side wall of the cavity via a bearing, and the other end of the threaded rod is connected to a side wall of the fixed mold connecting seat via a bearing.

[0009] Preferably, the ejector drive plate is sleeved on the outside of the threaded rod and is connected to the threaded rod through threads.

[0010] Preferably, the ejector drive plate is disposed inside the cavity and is slidably connected to the cavity.

[0011] Preferably, the ejector pin passes through the ejector pin hole and is slidably connected to the ejector pin hole.

[0012] Preferably, an injection mold body is provided between the movable mold body and the fixed mold body of the injection mold.

[0013] The embodiment of the utility model has the following advantages:

[0014] 1. The ejector assembly is located inside the cavity, so that the ejector assembly is in a sealed space, which prevents debris from entering the cavity when the ejector assembly is running. The ejector drive plate is always in a clean state during operation, which prevents debris from entering between the ejector drive plate and the cavity, thereby preventing the ejector drive plate from being affected by debris during operation, and thus allowing the ejector to stably eject the material and demould.

[0015] 2. The drive motor rotates to make the transmission shaft drive the worm to rotate. The rotation of the worm drives the threaded rod to rotate through the worm gear. The rotation of the threaded rod drives the ejector drive plate to move linearly through the thread. The ejector drive plate moves to eject the injection molded part from the inside of the molding cavity through the ejector, which facilitates the demolding of the injection molded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0018] Figure 1 A three-dimensional diagram of the mold opening state provided by the utility model;

[0019] Figure 2 A three-dimensional diagram of the connection relationship of the ejector assembly provided by the utility model;

[0020] Figure 3 This is an exploded perspective view of the connection relationship of the ejector assembly provided by the utility model;

[0021] Figure 4 This is a partial exploded perspective view of the connection relationship of the ejector assembly provided by the utility model;

[0022] Figure 5 This is a three-dimensional diagram of the mold closing state provided by the utility model.

[0023] In the figure: 1 injection mold movable mold body, 2 injection mold fixed mold body, 21 injection mold fixed mold body, 22 molding mold cavity, 23 cavity, 24 ejector hole, 25 fixed mold connecting seat, 3 ejector assembly, 31 drive motor, 32 transmission shaft, 33 worm, 34 worm gear, 35 threaded rod, 36 ejector drive plate, 37 ejector, 4 injection molded part body. DETAILED DESCRIPTION

[0024] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0025] Refer to the attached Figure 1 -Attached Figure 5 The utility model provides an integrally formed injection mold, comprising an injection mold movable mold body 1, an injection mold fixed mold body 2 is provided on one side of the injection mold movable mold body 1, the injection mold fixed mold body 2 comprises an injection mold fixed mold body 21, a molding cavity 22 and a cavity 23 are provided inside the injection mold fixed mold body 21, a plurality of ejector holes 24 are provided between the molding cavity 22 and the cavity 23, a fixed mold connecting seat 25 is fixedly provided on one side of the injection mold fixed mold body 21, and a fixed mold connecting seat 25 is provided inside the injection mold fixed mold body 21. The ejector assembly 3 includes a drive motor 31, which is fixedly mounted on one side of the fixed mold body 21 of the injection mold. The output end of the drive motor 31 is fixedly connected to a transmission shaft 32. A worm 33 is fixedly sleeved on the outside of the transmission shaft 32. A worm gear 34 is provided at the bottom of the worm 33. The worm 33 meshes with the worm gear 34. A threaded rod 35 is fixedly inserted into the inside of the worm gear 34. An ejector drive plate 36 is sleeved on the outside of the threaded rod 35. A plurality of ejectors 37 are fixedly mounted on one side of the ejector drive plate 36.

[0026] In this embodiment, in order to prevent the ejector drive plate 36 from being exposed outside the mold and to enable the ejector drive plate 36 to drive the ejector 37 to eject the injection molded part body 4, the ejector assembly 3 is placed inside the cavity 23, so that the ejector assembly 3 is placed inside a sealed space, thereby preventing debris from entering the cavity 23 when the ejector assembly 3 is running, so that the ejector drive plate 36 is always in a clean state when it is running, and preventing debris from entering between the ejector drive plate 36 and the cavity 23, thereby preventing the ejector drive plate 36 from being affected by debris during operation, thereby preventing the ejector drive plate 36 from affecting the stroke. The ejector pin 37 stably ejects the material from the mold. After the movable mold body 1 and the fixed mold body 2 of the injection mold are opened, when the ejector pin 37 is needed to eject the injection molded part body 4, the drive motor 31 is started. The drive motor 31 rotates through the transmission shaft 32 to drive the worm 33 to rotate. The worm 33 rotates through the worm gear 34 to drive the threaded rod 35 to rotate. The threaded rod 35 rotates and drives the ejector drive plate 36 to move linearly through the thread. The ejector drive plate 36 moves, thereby ejecting the injection molded part body 4 from the inside of the molding cavity 22 through the ejector pin 37, thereby facilitating the demoulding of the injection molded part body 4.

[0027] Among them, in order to achieve the purpose of rotating the threaded rod 35, this device adopts the following technical solutions: the transmission shaft 32 passes through the two side walls of the cavity 23 and is connected to the two side walls of the cavity 23 by bearings, the worm 33 is meshed with the worm wheel 34, one end of the threaded rod 35 is connected to a side wall of the cavity 23 by a bearing, and the other end of the threaded rod 35 is connected to a side wall of the fixed mold connecting seat 25 by a bearing. When the transmission shaft 32 rotates, the two ends are connected to the bearings of the cavity 23, so that the transmission shaft 32 rotates stably. When the threaded rod 35 rotates, it is connected to the bearings of the cavity 23 and the fixed mold connecting seat 25, so that the threaded rod 35 can rotate stably, thereby making the transmission shaft 32 stably drive the worm wheel 34 to rotate through the worm 33, thereby making the threaded rod 35 rotate stably.

[0028] Among them, in order to achieve the purpose of pushing the injection molded part body 4 to facilitate the demolding of the injection molded part body 4, the present device adopts the following technical solutions: the ejector drive plate 36 is sleeved on the outside of the threaded rod 35 and is connected to the threaded rod 35 by a thread, the ejector drive plate 36 is arranged inside the cavity 23 and is slidably connected to the cavity 23, the ejector 37 passes through the ejector hole 24 and is slidably connected to the ejector hole 24, the injection molded part body 4 is provided between the injection mold movable mold body 1 and the injection mold fixed mold body 2, the ejector drive plate 36 slides inside the cavity 23, and the injection molded part body 4 is ejected from the inside of the molding cavity 22 through the ejector 37, which facilitates the demolding of the injection molded part body 4.

[0029] The use process of the utility model is as follows: when using the utility model, the driving motor 31 is connected to the external power supply, the movable mold body 1 of the injection mold and the fixed mold body 2 of the injection mold are respectively connected to the injection molding machine, and the ejector assembly 3 is placed inside the cavity 23, so that the ejector assembly 3 is placed inside the sealed space, preventing foreign matter from entering the cavity 23 when the ejector assembly 3 is running, so that the ejector drive plate 36 is always in a clean state when running, preventing foreign matter from entering between the ejector drive plate 36 and the cavity 23, thereby preventing the ejector drive plate 36 from being affected by foreign matter during operation, and thus The ejector pin 37 can stably eject the material from the mold. After the movable mold body 1 and the fixed mold body 2 of the injection mold are opened, when the ejector pin 37 is needed to eject the injection molded part body 4, the drive motor 31 is started. The drive motor 31 rotates through the transmission shaft 32 to drive the worm 33 to rotate. The worm 33 rotates through the worm gear 34 to drive the threaded rod 35 to rotate. The threaded rod 35 rotates and drives the ejector drive plate 36 to move linearly through the thread. The ejector drive plate 36 moves, thereby ejecting the injection molded part body 4 from the inside of the molding cavity 22 through the ejector pin 37, which facilitates the demolding of the injection molded part body 4.

[0030] The above are merely preferred embodiments of the present invention. Anyone skilled in the art may utilize the above-described technical solutions to modify the present invention or create equivalent technical solutions. Therefore, any simple modification or equivalent replacement based on the technical solutions of the present invention falls within the scope of protection claimed by the present invention.

Claims

1. An integrally formed injection mold, comprising an injection mold movable mold body (1), characterized in that: An injection mold fixed mold body (2) is provided on one side of the injection mold movable mold body (1), the injection mold fixed mold body (2) includes an injection mold fixed mold body (21), a molding cavity (22) and a cavity (23) are provided inside the injection mold fixed mold body (21), a plurality of ejector holes (24) are provided between the molding cavity (22) and the cavity (23), a fixed mold connecting seat (25) is fixedly provided on one side of the injection mold fixed mold body (21), an ejector assembly (3) is provided inside the injection mold fixed mold body (21), and the ejector assembly (3) includes a driving motor (3 1), the driving motor (31) is fixedly arranged on one side of the fixed mold body (21) of the injection mold, the output end of the driving motor (31) is fixedly connected to a transmission shaft (32), the outer sleeve of the transmission shaft (32) is fixedly provided with a worm (33), the bottom of the worm (33) is provided with a worm wheel (34), the worm (33) is meshed with the worm wheel (34), the inner part of the worm wheel (34) is fixedly plugged with a threaded rod (35), the outer sleeve of the threaded rod (35) is provided with an ejector drive plate (36), and one side of the ejector drive plate (36) is fixedly provided with a plurality of ejectors (37).

2. The one-piece injection mold according to claim 1, characterized in that: The transmission shaft (32) passes through both side walls of the cavity (23) and is connected to both side walls of the cavity (23) via bearings.

3. The one-piece injection mold according to claim 1, characterized in that: The worm (33) is meshed with the worm wheel (34).

4. The one-piece injection mold according to claim 1, characterized in that: One end of the threaded rod (35) is connected to a side wall of the cavity (23) via a bearing, and the other end of the threaded rod (35) is connected to a side wall of the fixed mold connecting seat (25) via a bearing.

5. The one-piece injection mold according to claim 1, characterized in that: The ejector drive plate (36) is sleeved on the outside of the threaded rod (35) and is connected to the threaded rod (35) through threads.

6. The one-piece injection mold according to claim 1, characterized in that: The ejector drive plate (36) is disposed inside the cavity (23) and is slidably connected to the cavity (23).

7. The one-piece injection mold according to claim 1, characterized in that: The ejector pin (37) passes through the ejector pin hole (24) and is slidably connected to the ejector pin hole (24).

8. The one-piece injection mold according to claim 1, characterized in that: An injection molded part body (4) is provided between the injection mold movable mold body (1) and the injection mold fixed mold body (2).

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