Ejector rod structure of decorative cover injection mold structure

Abstract

The utility model discloses an ejector rod structure of a decorative cover injection mold structure, which comprises a first ejector rod piece, a second ejector rod piece and a mold ejection disc piece, a pressing connecting block is slidably connected in one strip-shaped opening, a mold connecting rod is mounted at one end of the pressing connecting block, and an elastic oil storage barrel is mounted in an inner cavity of the first ejector rod piece. An oil guide pipeline is arranged at an oil outlet of the elastic oil storage cylinder, and the oil outlet of the elastic oil storage cylinder is connected with the pressing connecting block in a sleeving mode. The elastic oil storage barrel is arranged in the inner cavity of the first ejector rod piece, the first ejector rod piece can be connected to a fixed mold plate of a mold through the pressing connecting block and the mold connecting rod, the pressing connecting block and the mold connecting rod are kept still in the process of jacking and opening the mold, and the elastic oil storage barrel moves relative to the pressing connecting block. And compared with a surface slotting mode, the lubricating oil can be stored, and the drying phenomenon of the lubricating oil is avoided.

Description

Technical Field

[0001] The utility model relates to a push rod structure of an injection mold structure of a decorative cover, belonging to the technical field of injection mold accessories. Background Art

[0002] The mold ejector pin is an important component of the mold and plays a role in opening the mold. Patent No. CN202020672498.7 discloses a mold ejector pin, comprising a cylindrical ejector pin front end and an ejector pin rear end sequentially connected along the length direction, a cylindrical ejector pin cap is connected to the end of the ejector pin rear end, the diameter of the ejector pin cap is larger than the diameter of the ejector pin rear end, the diameter of the ejector pin rear end is larger than the diameter of the ejector pin front end, and a spiral oil storage groove is provided on the outer surface of the front end of the ejector pin. The utility model has a simple structure and is easy to operate, which can extend the service life of the mold ejector pin, while reducing the labor intensity of personnel maintaining the ejector pin and reducing the cost of replacing the ejector pin.

[0003] The disadvantage of the above-disclosed ejector pin is that a spiral oil storage groove is provided on the outer surface of the front end of the ejector pin. Although it can store a certain amount of lubricating oil, it lacks sealing and the lubricating oil is prone to drying up. Therefore, we design an ejector pin structure of a decorative cover injection mold structure. Utility Model Content

[0004] The purpose of the utility model is to provide a push rod structure of a decorative cover injection mold structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a push rod structure of a decorative cover injection mold structure, comprising a first push rod component, a second push rod component and a mold top plate component, one end of the first push rod component is provided with a joint connection seat, one end of the second push rod component is provided with a matching through hole, the matching through hole is assembled and connected with the joint connection seat, the top and bottom of the first push rod component are provided with symmetrically distributed strip openings, one of the strip openings is slidably connected to the inside of a press connection block, one end of the press connection block is installed with a mold connecting rod, an elastic oil storage cylinder is installed in the inner cavity of the first push rod component, an oil guide pipe is provided at the oil outlet of the elastic oil storage cylinder, and the oil outlet of the elastic oil storage cylinder is sleeve-connected with the press connection block.

[0006] In the ejector rod structure of the above-mentioned decorative cover injection mold structure, a chassis connecting seat is provided at the other end of the first ejector rod.

[0007] In the ejector rod structure of the above-mentioned injection mold structure of the decorative cover, a metal sleeve is fixedly installed at one end of the chassis connecting seat, and limiting screws are installed at two limiting holes of the metal sleeve.

[0008] In the ejector rod structure of the above-mentioned decorative cover injection mold structure, the other end of the second ejector rod is fixedly mounted to the mold top plate, and a sealing ring is provided on the outer ring of the mold top plate.

[0009] In the ejector rod structure of the above-mentioned decorative cover injection mold structure, one end of the oil guide pipe passes through the joint connection seat, the matching through hole and is connected with the second ejector rod.

[0010] In the above-mentioned ejector rod structure of the injection mold structure of the decorative cover, the length of the first ejector rod is twice that of the second ejector rod, and the diameter of the first ejector rod is equal to the diameter of the second ejector rod.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The ejector rod structure of the injection mold structure of the decorative cover of the utility model is characterized by arranging an elastic oil storage cylinder in the inner cavity of the first ejector rod, which can be connected to the fixed mold plate of the mold by pressing the connecting block and the mold connecting rod. In the process of lifting and opening the mold, the pressing connecting block and the mold connecting rod remain stationary. As the elastic oil storage cylinder moves relative to the pressing connecting block, the lubricating oil inside the elastic oil storage cylinder is squeezed and reaches the second ejector rod through the oil guide pipe, thereby achieving a lubricating effect. Compared with the surface grooving method, the lubricating oil can be stored to avoid the drying up of the lubricating oil. At the same time, the weight of the first ejector rod can be reduced, which is convenient for saving materials and optimizing the manufacturing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the ejector rod structure of the injection mold structure of the decorative cover of the utility model.

[0014] Figure 2 It is a schematic diagram of the internal structure of the first push rod member of the push rod structure of the injection mold structure of the decorative cover of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the second ejector member of the ejector structure of the injection mold structure of the decorative cover of the utility model.

[0016] In the figure: 1. first ejector member; 2. second ejector member; 3. mold top plate member; 4. sealing ring; 5. chassis connecting seat; 6. strip opening; 7. metal bushing; 8. elastic oil storage cylinder; 9. pressing connecting block; 10. mold connecting rod; 11. oil guide pipe; 12. joint connecting seat; 13. matching through hole. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 The utility model provides a technical solution for the ejector structure of the decorative cover injection mold structure:

[0019] according to Figure 1-3 As shown, it includes a first ejector member 1, a second ejector member 2 and a mold top plate member 3, one end of the first ejector member 1 is provided with a joint connection seat 12, one end of the second ejector member 2 is provided with a matching through hole 13, the matching through hole 13 is assembled and connected with the joint connection seat 12, the top and bottom of the first ejector member 1 are provided with symmetrically distributed strip openings 6, one of the strip openings 6 is slidably connected to the inside of a press connection block 9, one end of the press connection block 9 is installed with a mold connecting rod 10, an elastic oil storage cylinder 8 is installed in the inner cavity of the first ejector member 1, an oil guide pipe 11 is provided at the oil outlet of the elastic oil storage cylinder 8, and the oil outlet of the elastic oil storage cylinder 8 is sleeve-connected with the press connection block 9.

[0020] In this embodiment, specifically, Figure 1 As shown, in order to facilitate installation at the bottom of the mold and to be able to connect with the driving power equipment, a chassis connecting seat 5 is provided at the other end of the first push rod 1; a metal sleeve 7 is fixedly installed at one end of the chassis connecting seat 5, and limiting screws are installed at the two limiting holes of the metal sleeve 7.

[0021] In this embodiment, specifically, Figure 1 As shown, in order to better correspond to the mold cavity and reduce the connection gap, the other end of the second ejector rod 2 is fixedly installed with the mold top plate 3, and the outer ring of the mold top plate 3 is provided with a sealing ring 4.

[0022] In this embodiment, specifically, Figure 3 As shown, in order to better assemble and connect so that the lubricating oil in the elastic oil storage cylinder 8 can be delivered to the second push rod 2, one end of the oil guide pipe 11 passes through the joint connection seat 12, the matching through hole 13 and is connected to the second push rod 2.

[0023] In this embodiment, specifically, Figure 1 As shown, the length of the first push rod member 1 is twice that of the second push rod member 2 and the diameter of the first push rod member 1 is equal to the diameter of the second push rod member 2 .

[0024] Working principle: The push rod of the utility model comprises a first push rod member 1, a second push rod member 2 and a mold top plate member 3, wherein a joint connection seat 12 is arranged at one end of the first push rod member 1 to be assembled and connected with a matching through hole 13 of the second push rod member 2, and the top and bottom of the first push rod member 1 are both provided with strip openings 6 which are symmetrically distributed, and the interior of one of the strip openings 6 is slidably connected to a press connection block 9, and a mold connection rod 10 is installed at one end of the press connection block 9, and the mold connection rod 10 is connected to the fixed mold plate of the mold, and the interior of the first push rod member 1 is An elastic oil storage cylinder 8 is installed at the cavity, and an oil guide pipe 11 is provided at the oil outlet of the elastic oil storage cylinder 8, and the oil outlet of the elastic oil storage cylinder 8 is sleeve-connected with the pressing connection block 9; during the process of lifting and opening the mold, the pressing connection block 9 and the mold connecting rod 10 remain stationary. Since the elastic oil storage cylinder 8 moves relative to the pressing connection block 9, the lubricating oil inside the elastic oil storage cylinder 8 is squeezed and reaches the second ejector rod 2 through the oil guide pipe 11, which has a lubricating effect. Compared with the surface grooving method, it can store lubricating oil and avoid the drying up of the lubricating oil.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A push rod structure of a decorative cover injection mold structure, comprising a first push rod component (1), a second push rod component (2) and a mold top plate component (3), characterized in that: One end of the first push rod (1) is provided with a joint connection seat (12), and one end of the second push rod (2) is provided with a matching through hole (13), and the matching through hole (13) is assembled and connected with the joint connection seat (12). The top and bottom of the first push rod (1) are provided with symmetrically distributed strip openings (6), and a pressing connection block (9) is slidably connected inside one of the strip openings (6), and a mold connecting rod (10) is installed at one end of the pressing connection block (9). An elastic oil storage cylinder (8) is installed in the inner cavity of the first push rod (1), and an oil guide pipe (11) is provided at the oil outlet of the elastic oil storage cylinder (8), and the oil outlet of the elastic oil storage cylinder (8) is sleeve-connected with the pressing connection block (9).

2. The ejector pin structure of the decorative cover injection mold structure according to claim 1, characterized in that: The other end of the first top rod (1) is provided with a chassis connecting seat (5).

3. The ejector pin structure of the decorative cover injection mold structure according to claim 2, characterized in that: A metal sleeve (7) is fixedly mounted on one end of the chassis connecting seat (5), and two limiting holes of the metal sleeve (7) are both installed with limiting screws.

4. The ejector pin structure of the decorative cover injection mold structure according to claim 1, characterized in that: The other end of the second ejector rod (2) is mounted on a mold top plate (3), and a sealing ring (4) is provided on the outer ring of the mold top plate (3).

5. The ejector pin structure of the decorative cover injection mold structure according to claim 1, characterized in that: One end of the oil guide pipe (11) passes through the joint connection seat (12), the matching through hole (13), and is connected to the second push rod (2).

6. The ejector pin structure of the decorative cover injection mold structure according to claim 1, characterized in that: The length of the first push rod (1) is twice that of the second push rod (2), and the diameter of the first push rod (1) is equal to the diameter of the second push rod (2).

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