An injection mold for an oil cylinder

Abstract

The utility model discloses an oil cylinder injection mold, including movable mould, fixed mould, demoulding structure and core -pulling structure, the shape of movable mould and fixed mould is same, the left and right sides outer fixed surface of movable mould and fixed mould is connected with fixed block, the outer surface of fixed block is equipped with screw hole, the inner surface of movable mould and fixed mould is equipped with mould groove, the inner surface fixed connection of movable mould has the locating column, the inner surface of fixed mould is equipped with the positioning hole, the inside mould groove of fixed mould is connected with the baffle, the outer surface fixed connection of baffle has the limiting block, the left side of movable mould is provided with demoulding structure, and the demoulding structure includes roof, thimble and top column, and the top of movable mould is provided with core -pulling structure, and the core -pulling structure includes oil cylinder, mounting panel, guide block, piston rod and core. Through above -mentioned structure, solve integral type oil cylinder maintenance difficult, and the problem such as maintenance of guide mechanism is complicated.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a hydraulic cylinder injection mold. Background Technology

[0002] In the field of injection molds, hydraulic cylinders, as core power components, are widely used in actions such as core pulling, ejection, and mold locking.

[0003] However, traditional hydraulic cylinder injection molds have the following drawbacks:

[0004] When an integral hydraulic cylinder structure malfunctions, the entire cylinder needs to be disassembled and repaired, resulting in long downtime and affecting production efficiency.

[0005] Traditional guide blocks require manual lubrication periodically, which increases maintenance costs and workload. Utility Model Content

[0006] The purpose of this utility model is to provide a hydraulic cylinder injection mold that can solve problems such as the difficulty in repairing integral hydraulic cylinders and the cumbersome maintenance of guide mechanisms.

[0007] To achieve the above objectives, a hydraulic cylinder injection mold is provided, comprising a moving mold, a fixed mold, a demolding structure, and a core-pulling structure;

[0008] A demolding structure is provided on the left side of the moving mold, and a core-pulling structure is provided at the top of the moving mold.

[0009] According to the aforementioned hydraulic cylinder injection mold, the moving mold and the fixed mold have the same shape. Fixed blocks are fixedly connected to the left and right outer surfaces of the moving mold and the fixed mold. Threaded holes are opened on the outer surface of the fixed blocks. Mold grooves are opened on the inner surfaces of the moving mold and the fixed mold. Positioning pins are fixedly connected to the inner surface of the moving mold. Positioning holes are opened on the inner surface of the fixed mold. The positioning pins and positioning holes fit together.

[0010] According to the aforementioned hydraulic cylinder injection mold, through holes are provided on the inner surface of the moving mold and the inner surface of the mold groove. A connecting block is fixedly connected to the outer surface of the moving mold, and a fixing plate is fixedly connected to the other end of the connecting block. A mounting bracket is fixedly connected to the moving mold, and the mounting bracket and the moving mold are connected by bolts. A core-pulling structure is installed at the top of the mounting bracket.

[0011] According to the aforementioned hydraulic cylinder injection mold, the demolding structure includes a top plate, an ejector pin, and an ejector column.

[0012] According to the aforementioned hydraulic cylinder injection mold, the top plate is installed on the left side of the moving mold, and ejector pins and ejector columns are fixedly connected to the inner surface of the top plate. The ejector pins, ejector columns, moving mold, and through holes on the inner surface of the mold groove fit together with each other.

[0013] According to the aforementioned hydraulic cylinder injection mold, the core-pulling structure includes a hydraulic cylinder, a mounting plate, a guide block, a piston rod, and a core.

[0014] According to the aforementioned hydraulic cylinder injection mold, the mounting plate is fixedly connected to the top of the mounting frame by bolts. A hydraulic cylinder is fixedly connected to the top of the mounting plate. The output end of the hydraulic cylinder extends into the interior of the mounting frame and is fixedly connected to a piston rod. A slot is opened at the top of the mounting frame, and the piston rod and the slot fit together. A core is fixedly connected to the other end of the piston rod. A guide block is connected to the outer surface of the piston rod, and the outer surface of the guide block is coated with a molybdenum disulfide coating.

[0015] According to the aforementioned hydraulic cylinder injection mold, a baffle is connected inside the mold groove of the fixed mold, and a limit block is fixedly connected to the outer surface of the baffle, and the limit block and the piston rod are engaged.

[0016] This utility model has the following beneficial effects:

[0017] 1. Compared with existing technologies, this system features a core-pulling structure and mounting bracket. The hydraulic cylinder adopts a modular structure, disassembling the traditional integral hydraulic cylinder into a core-pulling structure and mounting bracket. The modules are fixedly connected by bolts, and the connection points are equipped with seals (such as rubber gaskets). In the event of a hydraulic cylinder 5 failure, it can be disassembled and replaced by bolts, reducing downtime and adapting to different product requirements.

[0018] 2. Compared with existing technologies, the outer surface of the guide block is coated with a molybdenum disulfide coating to achieve self-lubrication, reduce friction loss, and reduce maintenance frequency. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a three-dimensional front view of a hydraulic cylinder injection mold according to the present invention;

[0021] Figure 2 This is a three-dimensional mold assembly drawing of a hydraulic cylinder injection mold according to this utility model;

[0022] Figure 3 This is a structural diagram of the moving mold of a hydraulic cylinder injection mold according to the present invention;

[0023] Figure 4 This is a structural diagram of the fixed mold of a hydraulic cylinder injection mold according to this utility model.

[0024] Legend:

[0025] 1. Moving mold; 2. Fixed mold; 3. Demolding structure; 301. Top plate; 302. Ejector pin; 303. Ejector pillar; 4. Connecting block; 5. Core pulling structure; 501. Hydraulic cylinder; 502. Mounting plate; 503. Guide block; 504. Piston rod; 505. Core; 6. Positioning pin; 601. Positioning hole; 7. Mounting bracket; 8. Bolt; 9. Fixing block; 10. Baffle; 10. Limiting block; 11. Mold groove; 12. Fixing plate. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-4 This utility model provides an injection mold for a hydraulic cylinder, which includes a moving mold 1, a fixed mold 2, a demolding structure 3, and a core-pulling structure 5.

[0028] The moving mold 1 and the fixed mold 2 have the same shape. The left and right outer surfaces of the moving mold 1 and the fixed mold 2 are fixedly connected to the fixing blocks 9. The outer surface of the fixing blocks 9 is provided with threaded holes. The inner surfaces of the moving mold 1 and the fixed mold 2 are provided with mold grooves 11. The inner surface of the moving mold 1 is fixedly connected to the positioning pin 6. The inner surface of the fixed mold 2 is provided with positioning holes 601. The positioning pin 6 and the positioning holes 601 fit together. The mold groove 11 of the fixed mold 2 is connected to the baffle 10. The outer surface of the baffle 10 is fixedly connected to the limiting block 1010. The limiting block 1010 and the piston rod 504 fit together.

[0029] With the above structure, when processing materials, the baffle 10 can block the guide block 503 and can also work with the guide block 503 to seal the mold groove 11.

[0030] Through holes are provided on the inner surface of the moving mold 1 and the inner surface of the mold groove 11. A connecting block 4 is fixedly connected to the outer surface of the moving mold 1. A fixing plate 12 is fixedly connected to the other end of the connecting block 4. A mounting bracket 7 is fixedly connected to the moving mold 1. The mounting bracket 7 and the moving mold 1 are connected by bolts 8. A core-pulling structure 5 is installed at the top of the mounting bracket 7.

[0031] The core-pulling structure 5 includes a hydraulic cylinder 501, a mounting plate 502, a guide block 503, a piston rod 504, and a core 505. The mounting plate 502 is fixedly connected to the top of the mounting frame 7 by bolts 8. The top of the mounting plate 502 is fixedly connected to the hydraulic cylinder 501. The output end of the hydraulic cylinder 501 extends into the interior of the mounting frame 7 and is fixedly connected to the piston rod 504. The top of the mounting frame 7 has a slot, and the piston rod 504 and the slot fit together. The other end of the piston rod 504 is fixedly connected to the core 505. The outer surface of the piston rod 504 is connected to the guide block 503, and the outer surface of the guide block 503 is coated with a molybdenum disulfide coating.

[0032] The above structure, the hydraulic cylinder 501 adopts a modular structure, which splits the traditional integral hydraulic cylinder into a core-pulling structure 5 and a mounting bracket 7. The modules are fixedly connected by bolts 8, and the connection is equipped with a seal (such as a rubber gasket). In case of failure of hydraulic cylinder 501, it can be disassembled and replaced by bolts 8, reducing downtime and adapting to different product requirements.

[0033] A demolding structure 3 is provided on the left side of the moving mold 1. The demolding structure 3 includes a top plate 301, an ejector pin 302, and an ejector column 303. The top plate 301 is installed on the left side of the moving mold 1. The ejector pin 302 and the ejector column 303 are fixedly connected to the inner surface of the top plate 301. The ejector pin 302, the ejector column 303 and the through holes on the inner surface of the moving mold 1 and the mold groove 11 fit together.

[0034] In the above structure, after the mold is processed, when demolding, the top plate 301 is controlled to move towards the moving mold 1, and the processed material is ejected by the ejector pin 302.

[0035] Working principle: Start the oil cylinder 501, control the piston rod 504 to move the core 505 into the mold groove 11, then position and connect the moving mold 1 and the fixed mold 2 through the positioning pin 6 and the positioning hole 601, then inject the material into the mold groove 11. After the material is processed, separate the moving mold 1 and the fixed mold 2, then control the top plate 301 to move towards the moving mold 1, and eject the processed material through the ejector pin 302.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A hydraulic cylinder injection mold, characterized in that, It includes a moving mold (1), a fixed mold (2), a demolding structure (3), and a core-pulling structure (5); The moving mold (1) has a demolding structure (3) on its left side and a core-pulling structure (5) on its top.

2. The hydraulic cylinder injection mold according to claim 1, characterized in that, The moving mold (1) and the fixed mold (2) have the same shape. The left and right outer surfaces of the moving mold (1) and the fixed mold (2) are fixedly connected to the fixing blocks (9). The outer surface of the fixing blocks (9) is provided with threaded holes. The inner surfaces of the moving mold (1) and the fixed mold (2) are provided with mold grooves (11). The inner surface of the moving mold (1) is fixedly connected to the positioning pin (6). The inner surface of the fixed mold (2) is provided with positioning holes (601). The positioning pin (6) and the positioning holes (601) fit together.

3. The hydraulic cylinder injection mold according to claim 1, characterized in that, Through holes are provided on the inner surface of the moving mold (1) and the inner surface of the mold groove (11). A connecting block (4) is fixedly connected to the outer surface of the moving mold (1). A fixing plate (12) is fixedly connected to the other end of the connecting block (4). A mounting bracket (7) is fixedly connected to the moving mold (1). The mounting bracket (7) and the moving mold (1) are connected by bolts (8). A core-pulling structure (5) is installed at the top of the mounting bracket (7).

4. The hydraulic cylinder injection mold according to claim 1, characterized in that, The demolding structure (3) includes a top plate (301), an ejector pin (302), and an ejector column (303).

5. A hydraulic cylinder injection mold according to claim 4, characterized in that, The top plate (301) is installed on the left side of the moving mold (1). The inner surface of the top plate (301) is fixedly connected with ejector pins (302) and ejector columns (303). The ejector pins (302), ejector columns (303) and the through holes on the inner surface of the moving mold (1) and the mold groove (11) fit together.

6. The hydraulic cylinder injection mold according to claim 1, characterized in that, The core-pulling structure (5) includes a hydraulic cylinder (501), a mounting plate (502), a guide block (503), a piston rod (504), and a core (505).

7. A hydraulic cylinder injection mold according to claim 6, characterized in that, The mounting plate (502) is fixedly connected to the top of the mounting frame (7) by bolts (8). A hydraulic cylinder (501) is fixedly connected to the top of the mounting plate (502). The output end of the hydraulic cylinder (501) extends into the interior of the mounting frame (7) and is fixedly connected to a piston rod (504). A slot is opened at the top of the mounting frame (7). The piston rod (504) and the slot fit together. A core (505) is fixedly connected to the other end of the piston rod (504). A guide block (503) is connected to the outer surface of the piston rod (504). The outer surface of the guide block (503) is coated with a molybdenum disulfide coating.

8. A hydraulic cylinder injection mold according to claim 1, characterized in that, The mold groove (11) of the fixed mold (2) is connected to a baffle (10), and a limit block (1010) is fixedly connected to the outer surface of the baffle (10), and the limit block (1010) and the piston rod (504) are in harmony.

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