Adjustable mold ejector pin

Abstract

The utility model discloses an adjustable mold ejector pin, which comprises an ejector pin body, an ejector pin, a first ejector pin, a second ejector pin, a second ejector pin and a third ejector pin, and the ejector pin body is composed of an ejector rod and a fixing piece arranged at the end of the ejector rod; the base mold is provided with an adjusting hole, and the adjusting hole part is in threaded fit with the fixing piece; and the at least two self-locking nuts are respectively arranged on two sides of the base mold in the aperture direction of the adjusting hole, are in threaded fit with the fixing piece and are used for locking the position of the ejector pin body. The adjusting hole is in threaded fit with the fixing piece, so that the ejector pin body can be fixedly installed on a base die, the position of the whole ejector pin body can be adjusted by rotating the fixing piece forwards and backwards, and then the extension amount of the ejector rod is adjusted; two self-locking nuts are matched to lock the two ends of the fixing piece, so that the position of the whole ejector pin body can be locked; the overall structure is simple and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of mold ejector technology, and more specifically, to an adjustable mold ejector. Background Technology

[0002] Ejector pins, also known as push rods or ejectors, are a key component in mold systems such as injection molds and die-casting molds. They are primarily used to eject the product from the mold after molding, facilitating product removal and preparation for the next production run.

[0003] In the existing technology, the countersunk head of the mold ejector pin is fixed on the base mold, and the ejector rod part is guided and engaged with the mold mounting hole on the guide mold. In this way, the length of the mold ejector pin is fixed, which cannot be used for various different models of products. It is necessary to replace the mold ejector pin separately, which is relatively troublesome. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a mold ejector pin that can adjust the extension and retraction position of the mold ejector pin.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] An adjustable mold ejector pin, comprising:

[0007] The ejector body comprises an ejector rod and a fixing member disposed at the end of the ejector rod;

[0008] A base mold, wherein an adjustment hole is provided on the base mold, and the adjustment hole portion is threadedly engaged with the fixing component;

[0009] At least two self-locking nuts are respectively set on both sides of the base mold in the direction of the adjustment hole diameter, and are threadedly engaged with the fixing part to lock the position of the ejector pin body.

[0010] Preferably, an adjustment seat is provided on one side of the base mold along the diameter direction of the adjustment hole; the adjustment hole includes a guide hole located in the base mold and a threaded hole located in the adjustment seat, the threaded hole being threadedly engaged with the fixing member.

[0011] Preferably, the guide hole has a smooth cylindrical inner wall; the fixing member includes:

[0012] The base has a sliding guide disposed within the guide hole;

[0013] A first threaded portion is provided at the end of the base away from the push rod, for threaded engagement with the threaded hole and the self-locking nut;

[0014] The second threaded portion is disposed between the base and the push rod, and is used to engage with the self-locking nut.

[0015] Preferably, the diameter of the guide hole is larger than the diameter of the threaded hole; the diameter of the base is larger than the diameter of the first threaded portion and the second threaded portion.

[0016] Preferably, a pressure member is detachably provided on the side of the base away from the adjusting seat. The pressure member has a through hole with a diameter larger than the diameter of the second threaded portion and smaller than the diameter of the base, and the through hole is concentric with the adjusting hole.

[0017] Preferably, the base mold has a mounting groove on the side away from the adjustment seat, with a depth complementary to that of the pressure member.

[0018] Preferably, the pressing component has a relief groove on the side away from the base mold, the depth of which is complementary to that of the self-locking nut.

[0019] Compared with the prior art, the advantages of this utility model are as follows:

[0020] By adjusting the hole and engaging the threaded connection with the fixing component, the ejector pin body can be fixedly installed on the base mold, and the position of the entire ejector pin body can be adjusted by rotating the fixing component in both directions, thereby adjusting the extension amount of the ejector rod; and by locking the two ends of the fixing component with two self-locking nuts, the position of the entire ejector pin body can be locked; the overall structure is simple and easy to operate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the combined structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the assembled components of this utility model.

[0023] Figure 3 This is a schematic diagram of the disassembled structure of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Ejector pin body; 11. Ejector rod; 12. Fixing component; 121. Base; 122. First threaded part; 123. Second threaded part; 2. Base mold; 21. Adjustment hole; 211. Guide hole; 212. Threaded hole; 3. Self-locking nut; 4. Adjustment seat; 5. Pressing component; 51. Through hole; 52. Mounting groove; 53. Clearance groove. Detailed Implementation

[0026] 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.

[0027] refer to Figure 1-3 An adjustable mold ejector pin includes: an ejector pin body 1, a base mold 2, and at least two self-locking nuts 3. The ejector pin body 1 consists of an ejector rod 11 and a fixing member 12 disposed at the end of the ejector rod 11; the base mold 2 is provided with an adjustment hole 21, the adjustment hole 21 being threadedly engaged with the fixing member 12; at least two self-locking nuts 3 are respectively disposed on both sides of the base mold 2 in the direction of the diameter of the adjustment hole 21, and are threadedly engaged with the fixing member 12, for locking the position of the ejector pin body 1.

[0028] Understandably, the base mold 2 is the base component that fixes the ejector body 1. It can be a block structure or a disc structure, but is not limited to these. The adjusting hole 21 is threadedly engaged with the fixing component 12, so a thread needs to be provided within the adjusting hole 21. This threaded portion can be located within the base mold 2, or it can be provided on another component added to the base mold 2. The self-locking nut 3 is not limited to the common hexagonal nut; it can also be other shapes of nut structures with threaded holes 212, such as a cylindrical or flanged outer ring, but is not limited to these. Multiple self-locking nuts 3 are provided, with at least one at each end of the fixing component 12. Of course, one or more ejector bodies 1 can be provided on a single base mold 2.

[0029] With this configuration, the adjusting hole 21 and the threaded engagement of the fixing member 12 not only allow the ejector pin body 1 to be fixedly mounted on the base mold 2, but also allow the position of the entire ejector pin body 1 to be adjusted by rotating the fixing member 12 in both directions, thereby adjusting the extension amount of the ejector rod 11. Furthermore, by locking both ends of the fixing member 12 with two self-locking nuts 3, the position of the entire ejector pin body 1 can be locked. When the ejector pin position needs to be adjusted, the self-locking nuts 3 are loosened, and then the fixing member 12 is rotated for adjustment.

[0030] In some embodiments, an adjusting seat 4 is provided on one side of the base mold 2 along the diameter direction of the adjusting hole 21. The adjusting hole 21 includes a guide hole 211 located within the base mold 2 and a threaded hole 212 located within the adjusting seat 4. The threaded hole 212 is threadedly engaged with the fixing member 12. Here, an additional component is used to engage with the fixing member 12. The adjusting seat 4 can be integrally mounted on the base mold 2, or it can be fixed to the base mold 2 by bolts or other fastening connectors, but is not limited to these methods. In this way, the fixing member 12 is functionally connected to the adjusting seat 4, eliminating the need for machining the base mold 2 and simplifying manufacturing.

[0031] In some embodiments, the guide hole 211 has a smooth cylindrical inner wall; the fastener 12 includes a base 121, a first threaded portion 122, and a second threaded portion 123. The base 121 is slidably guided within the guide hole 211; the first threaded portion 122 is located at the end of the base 121 away from the push rod 11 and is used to thread into the threaded hole 212 and the self-locking nut 3a; the second threaded portion 123 is located between the base 121 and the push rod 11 and is used to engage with the self-locking nut 3b.

[0032] Understandably, the guide hole 211 is designed to limit and guide the base 121. When adjusting the ejector body 1, the ejector body 1 needs to be rotated, so the guide hole 211 needs to be a circular hole, and the base 121 needs to be cylindrical or spherical, etc., but not limited to these. The first threaded part 122 and the second threaded part 123 are screw structures.

[0033] With this configuration, the extension / retraction position of the ejector body 1 can be adjusted by rotating the first threaded portion 122 in conjunction with the threaded hole 212. Furthermore, the engagement of the first threaded portion 122 and the second threaded portion 123 with the self-locking nut 3 locks the entire fixing component 12 in place, ensuring the stability of the ejector body 1's position. The guiding engagement between the base 121 and the guide hole 211 does not affect the movement and adjustment of the fixing component 12.

[0034] In some embodiments, the diameter of the guide hole 211 is larger than the diameter of the threaded hole 212; the diameter of the base 121 is larger than the diameter of the first threaded portion 122 and the second threaded portion 123. Thus, a limiting wall is formed at the junction of the threaded hole 212 and the guide hole 211, and the limiting wall can limit the base 121 after it moves to the top in the direction of the threaded hole 212.

[0035] In some embodiments, a pressure member 5 is detachably provided on the side of the base 121 away from the adjusting seat 4. The pressure member 5 has a through hole 51 with a diameter larger than the diameter of the second threaded portion 123 and smaller than the diameter of the base 121, and the through hole 51 is concentrically arranged with the adjusting hole 21. Here, the pressure member 5 is a component that limits the base 121, and can be, for example, a block structure or a plate structure, but is not limited to these. The detachable installation of the pressure member 5 can be achieved by bolt fixing or snap-on fixing structure, but is not limited to these. During assembly, the fixing member 12 can be inserted and installed first from the side of the base mold 2 away from the adjusting seat 4, and then the pressure member 5 can be sleeved on the top rod 11 through the through hole 51 and fixedly installed on the base mold 2. In this way, the pressure member 5 can limit the end of the base 121 away from the first threaded portion 122 without affecting the overall assembly.

[0036] In some embodiments, the base mold 2 has a mounting groove 52 on the side away from the adjusting seat 4, with a depth complementary to that of the pressure member 5. The pressure member 5 has a clearance groove 53 on the side away from the base mold 2, with a depth complementary to that of the self-locking nut 3b. It is understood that both the mounting groove 52 and the clearance groove 53 are recessed structures, respectively accommodating the pressure member 5 and the self-locking thread. Thus, there is no protruding structure on the side of the base mold 2 away from the adjusting seat 4, facilitating the mating of the base mold 2 with the guide mold.

[0037] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An adjustable mold ejector pin, characterized in that, include: The ejector body comprises an ejector rod and a fixing member disposed at the end of the ejector rod; A base mold, wherein an adjustment hole is provided on the base mold, and the adjustment hole portion is threadedly engaged with the fixing component; At least two self-locking nuts are respectively disposed on both sides of the base mold in the direction of the adjustment hole diameter, and are threadedly engaged with the fixing component to lock the position of the ejector pin body.

2. An adjustable mold ejector pin according to claim 1, characterized in that, An adjustment seat is provided on one side of the base mold along the diameter direction of the adjustment hole; the adjustment hole includes a guide hole located in the base mold and a threaded hole located in the adjustment seat, and the threaded hole is threadedly engaged with the fixing member.

3. An adjustable mold ejector pin according to claim 2, characterized in that, The guide hole has a smooth cylindrical inner wall; the fixing component includes: The base has a sliding guide disposed within the guide hole; A first threaded portion is provided at the end of the base away from the push rod, for threaded engagement with the threaded hole and the self-locking nut; The second threaded portion is disposed between the base and the push rod, and is used to engage with the self-locking nut.

4. An adjustable mold ejector pin according to claim 3, characterized in that, The diameter of the guide hole is larger than the diameter of the threaded hole; the diameter of the base is larger than the diameter of the first threaded portion and the second threaded portion.

5. An adjustable mold ejector pin according to claim 4, characterized in that, A pressure member is detachably provided on the side of the base away from the adjustment seat. The pressure member has a through hole with a diameter larger than the diameter of the second threaded part and smaller than the diameter of the base. The through hole is concentric with the adjustment hole.

6. An adjustable mold ejector pin according to claim 5, characterized in that, The base mold has an installation groove on the side away from the adjustment seat, with a depth complementary to that of the pressure member.

7. An adjustable mold ejector pin according to claim 5, characterized in that, The pressure component has a relief groove on the side away from the base mold, with a depth complementary to that of the self-locking nut.

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