Compact injection mold with improved stripping action

Abstract

The utility model discloses a compact injection mold of improving separation stripping action, include: static module and movable module, static module and movable module one side fixedly connected with the positioning ring, separation subassembly, separation subassembly sets up inside static module, and separation subassembly is used for separating the product after forming and separating, filter component, filter component sets up the bottom intercommunication of separation subassembly, the utility model relates to injection mold technical field. The compact injection mold of improving separation stripping action, utilize the setting of separation subassembly, before separating stripping, adopt high pressure gas and blow, can form the air film, reduce the friction, when the plastic product cools down, the outer surface will be close to the inner wall of mould cavity, and high pressure gas passes through the pinhole in the mould, in addition, for the product of deep cavity or curved surface structure, gas blowing can guarantee that the inner wall is uniformly stressed as a whole, set up the air passage in the sealing sleeve, can guarantee when not the air, directly to the device seal, avoid mistake blowing.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a compact injection mold that improves the separation and unloading action. Background Technology

[0002] An injection mold is a special tool installed on an injection molding machine for producing plastic products.

[0003] Patent CN222858631U discloses a precision injection mold with automatic stripping. The left mold base has several horizontally extending inner forming rods on its left side. A clamping plate is located on the right side of the left mold base, and a stripping plate is mounted on the clamping plate. The stripping plate is mounted on a horizontal track that moves back and forth on the clamping plate. The front and rear parts of the left mold base are respectively equipped with right-extending stripping guide rods, each with a track groove. An outwardly extending track plate is mounted on the outside of the stripping plate, with its sliding end located within the track groove. Pairs of semi-annular stripping cavities are mounted on the stripping plate. The right mold base has a fixed cavity that opens to the left and is opposite to the inner forming rods. A cooling device is located around the fixed cavity inside the right mold base. The rightmost end of the fixed cavity has a sprue for material feeding. This patent enables automated mass production of products, with automatic and rapid mold closing, demolding, and stripping. The injection mold structure has high precision, and the entire production process is efficient and energy-saving.

[0004] As shown in the above technology, traditional injection molds directly use mechanical separation when separating and unloading products, mainly relying on mechanical ejector pins and push plates to eject the products. Mechanical ejection often only applies force locally, and the edges of the products may still stick to the mold or deform. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a compact injection mold that improves the separation and ejection action. It solves the problem that direct mechanical separation mainly relies on mechanical ejector pins and push plates to eject the product, and mechanical ejection often only applies force locally, while the product edges may still stick to the mold or deform.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a compact injection mold that improves the separation and unloading action, comprising: A static module and a dynamic module, wherein a positioning ring is fixedly connected to one side of the static module and the dynamic module; A separation component is disposed inside the stationary module and is used to separate and detach the molded product. A filter assembly is disposed at the bottom of the separation assembly and is used to filter the air entering the mold.

[0007] Preferably, the separation component includes an air outlet oblique pipe and a top mounting groove disposed inside the static module. One end of the air outlet oblique pipe is connected to a bend pipe, one side of the bend pipe surface is connected to a vent pipe, and one end of the vent pipe is connected to a guide pipe.

[0008] Preferably, a telescopic rod is fixedly connected to one side of the inner wall of the folded tube, and a sealing sleeve is fixedly connected to the top of the telescopic rod. The sealing sleeve has a ventilation groove inside.

[0009] Preferably, a separation telescopic rod is fixedly connected to the bottom of the inner wall of the top mounting groove, and a contact plate is fixedly connected to the top of the separation telescopic rod.

[0010] Preferably, the filter assembly includes a filter housing fixedly connected to the bottom of the static module, a filter pad movably connected to the inner wall of the filter housing, and a limiting ring plate movably connected to the bottom of the filter housing.

[0011] Preferably, the bottom of the static module is rotatably connected to a baffle via a damping shaft, and the top of the baffle is provided with anti-slip texture.

[0012] This invention provides a compact injection mold that improves the separation and ejection action. Compared with the prior art, it has the following advantages: 1. This compact injection mold for improving separation and ejection utilizes a separation component. Before separation and ejection, high-pressure gas is blown in to form an air film, reducing friction. After the plastic product cools, its outer surface will adhere tightly to the inner wall of the mold cavity. The high-pressure gas passes through the micropores in the mold. In addition, for products with deep cavities or curved surfaces, the gas blowing in ensures that the inner wall is uniformly stressed. A venting groove is set in the sealing sleeve to ensure that the device is sealed directly when venting is not necessary, avoiding accidental blowing. At the same time, a separation telescopic rod and a contact plate are set to separate and eject the product after basic separation in a timely manner, facilitating subsequent collection. The method of blowing air before ejection adopted in this application solves the problem that direct mechanical separation mainly relies on mechanical ejector pins and push plates to eject the product. Mechanical ejection often only applies force locally, and the edges of the product may still stick to the mold or deform.

[0013] 2. This compact injection mold that improves the separation and unloading action utilizes a filter assembly to filter the air using a filter pad, avoiding the need for air supply and preventing dust particles from being blown into the mold. The installation of the stationary module on one side can avoid frequent operation. In addition, the limit ring plate is completely detachable, allowing for quick disassembly and maintenance when dirty, making operation convenient. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a cross-sectional view of the separation component and the filtering component of this utility model; Figure 5 This utility model Figure 4 A magnified view of a section at point B in the middle; Figure 6 This utility model Figure 4 A magnified view of a section at point C.

[0015] In the diagram: 1. Static module; 2. Dynamic module; 3. Positioning ring; 4. Separation assembly; 5. Filter assembly; 41. Top mounting slot; 42. Bending pipe; 43. Vent pipe; 44. Telescopic rod; 45. Sealing sleeve; 46. Vent groove; 47. Separation telescopic rod; 48. Contact plate; 49. Guide pipe; 410. Outlet inclined pipe; 51. Filter shell; 52. Filter pad; 53. Limiting ring plate; 54. Baffle; 55. Damping shaft. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-6 This utility model provides two technical solutions: Example 1: A compact injection mold for improving the separation and stripping action, comprising: The stationary module 1 and the moving module 2 are respectively located at the bottom. The stationary module 1 and the moving module 2 are fixedly connected to one side of the positioning ring 3. Separation component 4 is located inside static module 1 and is used to separate and detach the molded product. The filter assembly 5 is located at the bottom of the separation assembly 4 and is used to filter the air entering the mold. With the separation assembly 4, high-pressure gas is blown in before separation and ejection to form an air film and reduce friction. After the plastic product cools, the outer surface will stick tightly to the inner wall of the mold cavity. The high-pressure gas passes through the micropores in the mold. In addition, for products with deep cavities or curved surfaces, the gas blowing can ensure that the inner wall is uniformly stressed. A ventilation groove 46 is set in the sealing sleeve 45 to ensure that the device is sealed directly when ventilation is not required, avoiding accidental blowing. At the same time, a separation telescopic rod 47 and a contact plate 48 are set to separate and eject the product after basic separation in a timely manner, which is convenient for subsequent collection. The method of blowing air before ejection in this application solves the problem that direct mechanical separation mainly relies on mechanical ejector pins and push plates to eject the product. Mechanical ejection often can only exert force locally, and the edge of the product may still stick to the mold or deform.

[0018] Example 2 differs from Example 1 primarily in that it features a compact injection mold that enhances the separation and unloading action. The separation component 4 includes an venting pipe 410 and a top mounting groove 41 located inside the stationary module 1. One end of the venting pipe 410 is connected to a bend pipe 42, and one side of the bend pipe 42 is connected to a vent pipe 43. One end of the vent pipe 43 is connected to a guide pipe 49. A telescopic rod 44 is fixedly connected to one side of the inner wall of the bend pipe 42. The telescopic rod 44 is controlled by an electro-hydraulic pump. A sealing sleeve 45 is fixedly connected to the top of the telescopic rod 44. The sealing sleeve 45 has the same diameter as the inner wall of the bend pipe 42. A sealing silicone ring is provided on the surface of the sealing sleeve 45. A venting groove 46 is provided inside the sealing sleeve 45, and the venting groove 46 has an L-shaped cross-section. A separation telescopic rod 47 is fixedly connected to the bottom of the inner wall of the top mounting groove 41. The telescopic rod 47 is controlled by an electro-hydraulic pump. A contact plate 48 is fixedly connected to the top of the telescopic rod 47. The filter assembly 5 includes a filter shell 51 fixedly connected to the bottom of the stationary module 1. A filter pad 52 is movably connected to the inner wall of the filter shell 51. A limit ring plate 53 is movably connected to the bottom of the filter shell 51. A protruding threaded tube is provided at the bottom of the limit ring plate 53, which is connected to an external air source, such as an air pump, through a pipe. A baffle 54 is rotatably connected to the bottom of the stationary module 1 through a damping shaft 55. The top of the baffle 54 is provided with anti-slip texture. By using the filter assembly 5, the filter pad 52 filters the air, avoiding the use of air supply and preventing dust particles from being blown into the mold. The installation side of the stationary module can avoid frequent operation. In addition, the limit ring plate 53 is detachable as a whole, which can be quickly disassembled and maintained after getting dirty, making operation convenient.

[0019] The bottom of the limiting ring plate 53 is an external air source interface, the top of the moving module 2 is provided with a gate, and each folded tube 42 is provided with a telescopic rod 44, which can be started at the same time by electrical control.

[0020] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0021] During operation, the mold is aligned and installed using the positioning ring 3. After the moving module 2 and the stationary module 1 are sealed, the bottom of the limiting ring plate 53 is connected to the external air source. After normal injection molding and cooling, the moving module 2 is raised to supply air to the limiting ring plate 53. The air is filtered by the filter pad 52 and then enters the vent pipe 43 and the bend pipe 42 through the guide pipe 49. The extension rod 44 extends, the sealing sleeve 45 moves upward, and the vent groove 46 connects the bend pipe 42 and the outlet inclined pipe 410. Therefore, air passes through the outlet inclined pipe. The tube 410 blows directly outward, creating an air film between the injection molded product and the inner wall of the mold. Then, the separation telescopic rod 47 in the top mounting groove 41 extends, and the contact plate 48 directly separates the molded product, completing the unloading. When the filter pad 52 is dirty, the baffle 54 is rotated to separate the top of the damping shaft 55 from the bottom of the limiting ring plate 53. Then, the limiting ring plate 53 is pulled down to remove and replace the filter pad 52. Then, the damping shaft 55 is restored. When the operation of the device is completely finished, the device is restored.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A compact injection mold for improving the separation and stripping action, characterized in that, include: A static module (1) and a moving module (2), wherein a positioning ring (3) is fixedly connected to one side of the static module (1) and the moving module (2); Separation component (4), which is disposed inside the stationary module (1), is used to separate and detach the formed product; A filter assembly (5) is disposed at the bottom of the separation assembly (4) and is used to filter the air entering the mold.

2. The compact injection mold for improving the separation and unloading action according to claim 1, characterized in that: The separation component (4) includes an outlet oblique pipe (410) and a top mounting groove (41) disposed inside the static module (1). One end of the outlet oblique pipe (410) is connected to a bend pipe (42), one side of the surface of the bend pipe (42) is connected to a vent pipe (43), and one end of the vent pipe (43) is connected to a guide pipe (49).

3. The compact injection mold for improving the separation and unloading action according to claim 2, characterized in that: A telescopic rod (44) is fixedly connected to one side of the inner wall of the folded tube (42), and a sealing sleeve (45) is fixedly connected to the top of the telescopic rod (44). A ventilation groove (46) is provided inside the sealing sleeve (45).

4. The compact injection mold for improving the separation and unloading action according to claim 2, characterized in that: A separation telescopic rod (47) is fixedly connected to the bottom of the inner wall of the top mounting groove (41), and a contact plate (48) is fixedly connected to the top of the separation telescopic rod (47).

5. The compact injection mold for improving the separation and unloading action according to claim 1, characterized in that: The filter assembly (5) includes a filter shell (51) fixedly connected to the bottom of the static module (1), a filter pad (52) is movably connected to the inner wall of the filter shell (51), and a limiting ring plate (53) is movably connected to the bottom of the filter shell (51).

6. The compact injection mold for improving the separation and unloading action according to claim 1, characterized in that: The bottom of the static module (1) is rotatably connected to a baffle (54) via a damping shaft (55), and the top of the baffle (54) is provided with anti-slip texture.

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