Ejection mechanism and injection molding part mold thereof

Abstract

The utility model discloses an ejection mechanism and an injection molding part mold thereof. The ejection mechanism comprises an ejection rod, the outer wall of the ejection rod is connected with a lower mold base in a sliding, penetrating and sleeving mode, a mounting cavity is formed in one side of the lower mold base, a connecting plate is connected to the bottom of an inner cavity of the mounting cavity in a sliding and sleeving mode, and a mounting plate is arranged in the mounting cavity in a sliding mode. A through hole matched with the ejector rod is formed in the top of the mounting plate, the clamping assembly is used for clamping and locking the ejector rod, the locking assembly is arranged on the lower die base, and the locking assembly is used for clamping and limiting the connecting plate, the mounting plate and the clamping assembly. According to the utility model, the lower die holder, the ejector rod, the mounting plate, the clamping component and the locking component are matched for use, under the action of the locking component, the connection stability of the clamping plate and the mounting plate can be ensured, so that the mounting stability of the ejector rod is ensured, the locking component is disassembled, the clamping plate is driven by the connecting rod to be separated from the ejector rod, and the ejector rod can be directly drawn out; therefore, the joint of the ejector rod and the lower die holder is cleaned and maintained.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mould field, especially a kind of ejection mechanism and its injection molded part mould. BACKGROUND

[0002] Injection molded part mould is the tool for manufacturing injection molded part, and injection mold is usually composed of upper mould and lower mould, and the lower mould is usually concave, and in order to facilitate the lower mould demoulding, ejection mechanism is arranged in the lower mould, so that injection molded part is ejected after injection molding.

[0003] Ejection mechanism is usually composed of ejector pin and driving mechanism, and driving mechanism is usually cylinder ejection or spring force ejection, but when ejector pin is installed, the connecting part of ejector pin is usually located in the interior of lower mould, so that the situation of damage or material leakage of ejector pin occurs, and it needs to be disassembled and maintained, but since the connecting mechanism of ejector pin is located in the interior of lower mould, the lower mould as a whole needs to be disassembled, so that ejector pin can be disassembled and maintained, and it is not convenient to disassemble ejector pin alone, so there is certain defect. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of ejection mechanism and its injection molded part mould to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of ejection mechanism, for lower mould base ejects injection molded part, including:

[0006] Ejector rod, the outer wall of the ejector rod is slidably inserted into the lower mould base;

[0007] Mounting chamber, the mounting chamber is opened in the side of lower mould base;

[0008] Connecting plate, the connecting plate is slidably inserted into the bottom of the inner cavity of mounting chamber;

[0009] Mounting plate, the mounting plate is slidably arranged in the interior of mounting chamber, and the top of the mounting plate is provided with through hole matched with ejector rod;

[0010] Clamping assembly, the clamping assembly is arranged on the mounting plate, and the clamping assembly is used for clamping locking ejector rod;

[0011] Locking assembly, the locking assembly is arranged on the lower mould base, and the locking assembly is used for clamping limiting connecting plate, mounting plate and clamping assembly.

[0012] Preferably, the clamping assembly includes:

[0013] Slide hole, the slide hole is opened in the front of mounting plate;

[0014] The outer wall of the clamping plate is slidably sleeved with the inner cavity of the sliding hole;

[0015] The clamping groove is arranged on the bottom of the outer wall of the ejector rod, and the side of the clamping plate is slidably clamped in the inner cavity of the clamping groove.

[0016] Preferably, the clamping assembly further comprises:

[0017] The outer wall of the connecting rod is slidably sleeved with the mounting plate;

[0018] The handle is fixedly connected to the end of the connecting rod.

[0019] Preferably, the locking assembly comprises:

[0020] The locking plate is slidably sleeved with the lower die seat in a vertical state;

[0021] The locking groove is arranged on the side of the connecting plate, the mounting plate and the clamping plate, and the outer wall of the locking plate is slidably clamped in the inner cavity of the locking groove.

[0022] Preferably, the locking assembly further comprises:

[0023] The side of the fixed plate is fixedly connected with the locking plate, and the fixed plate is fixedly connected with the lower die seat through the inner bolt;

[0024] The side of the lower die seat is provided with a bearing groove matched with the second spring, and one end of the second spring is fixedly connected with the fixed plate.

[0025] Preferably, the utility model further comprises:

[0026] The bottom of the guide rod is fixedly connected with the connecting plate, and the top of the outer wall of the guide rod is slidably sleeved with the mounting plate;

[0027] The first spring is slidably sleeved on the outside of the guide rod, and the first spring is located between the connecting plate and the mounting plate.

[0028] Another purpose of the utility model is to provide a injection molding part mold.

[0029] The utility model discloses a technical effect and advantage:

[0030] This utility model utilizes the combined use of a lower mold base, an ejector rod, a mounting plate, a snap-fit ​​assembly, and a locking assembly. The snap-fit ​​assembly includes a snap-fit ​​plate and a connecting rod. The snap-fit ​​plate is slidably snapped between the mounting plate and the ejector rod. Under the action of the locking assembly, the stability of the connection between the snap-fit ​​plate and the mounting plate can be ensured, thereby ensuring the stability of the ejector rod installation. By disassembling the locking assembly and using the connecting rod to separate the snap-fit ​​plate from the ejector rod, the ejector rod can be directly pulled out, thereby cleaning and maintaining the connection between the ejector rod and the lower mold base. Attached Figure Description

[0031] Fig. 1 This is a schematic diagram of the overall structure of this utility model.

[0032] Fig. 2 This is a schematic diagram of the internal structure of the front of this utility model.

[0033] Fig. 3 This is a top view diagram of the structure of this utility model.

[0034] In the diagram: 1. Lower mold base; 2. Ejector rod; 3. Connecting plate; 4. Mounting plate; 5. First spring; 6. Snap-fit ​​assembly; 61. Snap-fit ​​plate; 62. Sliding hole; 63. Connecting rod; 7. Locking assembly; 71. Locking plate; 72. Fixing plate; 73. Inner bolt; 74. Second spring; 8. Guide rod. Detailed Implementation

[0035] 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.

[0036] This utility model provides, for example Figs. 1-3 The image shows an ejection mechanism used to eject the injection molded part from the lower mold base 1.

[0037] Example 1

[0038] The top rod 2, the installation chamber, the connecting plate 3, the mounting plate 4, the clamping assembly 6 and the locking assembly 7 are included, the outer wall of the top rod 2 is slidably sleeved with the lower die seat 1, the installation chamber is arranged on one side of the lower die seat 1, the connecting plate 3 is slidably sleeved at the bottom of the inner cavity of the installation chamber, the mounting plate 4 is slidably arranged in the installation chamber, the top of the mounting plate 4 is provided with a through hole matched with the top rod 2, the clamping assembly 6 is arranged on the mounting plate 4, the clamping assembly 6 is used for clamping and locking the top rod 2, under the action of the clamping assembly 6, the mounting plate 4 can drive the top rod 2 to slide up and down relative to the lower die seat 1, the locking assembly 7 is arranged on the lower die seat 1, the locking assembly 7 is used for clamping and limiting the connecting plate 3, the mounting plate 4 and the clamping assembly 6, and the locking assembly 7 can ensure the stability of the connecting plate 3 and the mounting plate 4 installed in the installation chamber, and will not affect the up-down movement of the mounting plate 4.

[0039] Specifically, the guide rod 8 and the first spring 5 are further included, the bottom of the guide rod 8 is fixedly connected with the connecting plate 3, the top of the outer wall of the guide rod 8 is slidably sleeved with the mounting plate 4, the first spring 5 is slidably sleeved outside the guide rod 8, the first spring 5 is located between the connecting plate 3 and the mounting plate 4, and the top of the lower die seat 1 is provided with a guide hole, so that when the upper die seat is used in cooperation with the lower die seat, the guide column at the bottom of the upper die seat is slidably sleeved with the guide hole, the guide column can press the mounting plate 4 to descend, and when the lower die seat and the upper die seat are completed, the mounting plate 4 drives the top rod 2 to descend, so that the top of the top rod 2 is flush with the inner cavity of the lower die seat 1.

[0040] Especially, the clamping assembly 6 includes the sliding hole 62, the clamping plate 61 and the clamping groove, the sliding hole 62 is arranged on the front surface of the mounting plate 4, the outer wall of the clamping plate 61 is slidably sleeved with the inner cavity of the sliding hole 62, the clamping groove is arranged on the bottom of the outer wall of the top rod 2, and the side of the clamping plate 61 is slidably clamped with the inner cavity of the clamping groove, so that the clamping plate 61 is separated from the clamping groove of the outer wall of the top rod 2, and the top rod 2 can be directly pulled out.

[0041] Further, the clamping assembly 6 further includes the connecting rod 63 and the handle, one end of the connecting rod 63 is fixedly connected with the clamping plate 61, the outer wall of the connecting rod 63 is slidably sleeved with the mounting plate 4, and the handle is fixedly connected with the end of the connecting rod 63, so that the handle can drive the clamping plate 61 to slide in the sliding hole 62 of the mounting plate 4 through the connecting rod 63.

[0042] Embodiment 2

[0043] On the basis of embodiment 1, the locking assembly 7 comprises a locking plate 71 and a locking groove, the locking plate 71 is in a vertical state and is sleeved with the lower die seat 1, the locking groove is opened in the side of the connecting plate 3, the mounting plate 4 and the clamping plate 61, the outer wall of the locking plate 71 is sleeved with the inner cavity of the locking groove, the locking plate 71 can be clamped and limited to the connecting plate 3, the mounting plate 4 and the clamping plate 61, so as to ensure the stability of the connecting plate 3, the mounting plate 4 and the clamping plate 61 installed in the installation chamber, and does not affect the stability of the mounting plate 4 and the clamping plate 61 sliding in the installation chamber.

[0044] Further, the locking assembly 7 further comprises a fixed plate 72, an inner bolt 73 and a second spring 74, one side of the fixed plate 72 is fixedly connected with the locking plate 71, the fixed plate 72 is fixedly connected with the lower die seat 1 through the inner bolt 73, and the side of the lower die seat 1 is provided with a groove matched with the fixed plate 72, the side of the lower die seat 1 is provided with a bearing groove matched with the second spring 74, one end of the second spring 74 is fixedly connected with the fixed plate 72, the inner bolt 73 is disassembled, the second spring 74 can push out the fixed plate 72, so that the fixed plate 72 and the locking plate 71 can be pulled out.

[0045] The embodiment provides an injection molding part mold, the injection molding part mold comprises the ejection mechanism, the injection molding part mold comprises a lower die seat 1 and an upper die seat, and the lower die seat 1 and the upper die seat can be clamped to injection molding production of the injection molding part.

[0046] Finally, it should be noted that: the above only for preferred embodiments of the utility model have been described, and are not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. An ejection mechanism for ejecting an injection molded part from a lower mold base (1), characterized in that, include: The outer wall of the push rod (2) is slidably inserted into the lower mold base (1); The mounting chamber is located on one side of the lower mold base (1); Connecting plate (3), which is slidably sleeved on the bottom of the inner cavity of the mounting chamber; Mounting plate (4), which is slidably disposed inside the mounting chamber, and the top of the mounting plate (4) is provided with a through hole that matches the top rod (2); A snap-fit ​​assembly (6) is disposed on the mounting plate (4) and is used to snap-fit ​​and lock the top rod (2); Locking component (7) is disposed on the lower mold base (1) and is used to lock and limit the connection plate (3), mounting plate (4) and locking component (6).

2. The ejection mechanism according to claim 1, characterized in that, The snap-fit ​​assembly (6) includes: A sliding hole (62) is provided on the front side of the mounting plate (4); A snap-fit ​​plate (61) is provided, wherein the outer wall of the snap-fit ​​plate (61) is slidably sleeved with the inner cavity of the sliding hole (62); The slot is located at the bottom of the outer wall of the top rod (2), and the side of the snap plate (61) is slidably snapped into the inner cavity of the slot.

3. The ejection mechanism according to claim 2, characterized in that, The snap-fit ​​assembly (6) also includes: A connecting rod (63) is fixedly connected at one end to a snap-fit ​​plate (61), and the outer wall of the connecting rod (63) is slidably inserted into the mounting plate (4). A handle, which is fixedly connected to the end of the connecting rod (63).

4. The ejection mechanism according to claim 3, characterized in that, The locking component (7) includes: Locking plate (71), which is in a vertical state and is slidably inserted into the lower mold base (1); The locking groove is provided on the side of the connecting plate (3), the mounting plate (4) and the snap-fit ​​plate (61), and the outer wall of the locking plate (71) is slidably snapped into the inner cavity of the locking groove.

5. The ejection mechanism according to claim 4, characterized in that, The locking component (7) also includes: A fixing plate (72) and an inner bolt (73) are provided. One side of the fixing plate (72) is fixedly connected to the locking plate (71). The fixing plate (72) is fixedly connected to the lower mold base (1) by the inner bolt (73). The second spring (74) has a bearing groove that matches the side of the lower mold base (1), and one end of the second spring (74) is fixedly connected to the fixing plate (72).

6. The ejection mechanism according to claim 1, characterized in that, Also includes: Guide rod (8), the bottom of the guide rod (8) is fixedly connected to the connecting plate (3), and the top of the outer wall of the guide rod (8) is slidably inserted into the mounting plate (4); The first spring (5) is slidably sleeved on the outside of the guide rod (8) and is located between the connecting plate (3) and the mounting plate (4).

7. An injection mold, characterized in that, The injection mold includes an ejection mechanism as described in any one of claims 1-6.

Images