Die structure capable of realizing secondary ejection

Abstract

The utility model provides a mould structure capable of realizing secondary ejection, which comprises a male mould fixing plate, an ejector pin lower plate and an ejector pin upper plate which are sequentially stacked from bottom to top, a male mould base plate is arranged above the ejector pin upper plate, an ejector plate is arranged on one side of the ejector pin lower plate, and the ejector plate drives the ejector pin lower plate to move upwards under the action of external force; a first cushion block is arranged in the ejector pin lower plate in a penetrating mode, a first ejector pin and a second ejector pin are arranged in the ejector pin upper plate, the bottom of the first ejector pin abuts against the first cushion block, a second cushion block abuts against the bottom of the second ejector pin, and the second cushion block is arranged in the ejector pin lower plate. A third cushion block is arranged on the male die fixing plate, a spring is arranged at the bottom of the third cushion block, and the bottom of the first cushion block abuts against the third cushion block. The secondary ejection mechanism is compact in structure and can realize a secondary ejection function in a common mold structure. Compared with a traditional secondary ejection mold structure, the secondary ejection mold structure has the advantages that the mold is simplified, and the mold cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold structure capable of realizing secondary ejection. Background Art

[0002] In the plastic mold structure, secondary ejection can be used in many situations, such as when the product must adopt a secondary ejection structure to be demoulded, or when the product sticks to the public mold and causes the product to swell. However, under the current background, to achieve the secondary ejection function, the mold structure is relatively complex, the mold shape is large, and the cost is high.

[0003] It is necessary to provide a mold to overcome the above-mentioned problems of complex mold structure, large mold height and high mold cost. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a mold structure that can realize secondary ejection, which has the advantages of compact structure and low cost.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model provides a mold structure capable of realizing secondary ejection, comprising a male mold fixing plate, an ejector lower plate and an ejector upper plate which are sequentially stacked from bottom to top, a male mold pad is arranged above the ejector upper plate, an ejector plate is arranged on one side of the ejector lower plate, and the ejector lower plate is driven to move upward by an external force; a first pad is inserted into the ejector lower plate, a first ejector and a second ejector are arranged in the ejector upper plate, the bottom of the first ejector rests on the first pad, the bottom of the second ejector rests on the second pad, and the second pad is arranged in the ejector lower plate; a third pad is arranged on the male mold fixing plate, a spring is arranged at the bottom of the third pad, and the bottom of the first pad rests on the third pad.

[0007] Further preferably, the mold also includes a fourth cushion block, which is clamped between the male mold fixing plate and the ejector lower plate and fixed to the male mold fixing plate by bolts; a first accommodating cavity is provided on the fourth cushion block, the first cushion block passes through the first accommodating cavity, the first cushion block includes a first abutting portion and a first limiting portion, the first limiting portion protrudes from the first abutting portion, the top of the first abutting portion abuts against the first ejector, and a first gap is provided between the first limiting portion and the fourth cushion block along the movement direction of the first ejector.

[0008] Further preferably, the distance of the first gap is 0.5 cm.

[0009] Further preferably, a second accommodating cavity is provided at the upper end of the ejector upper plate, the second cushion block is provided in the second accommodating cavity, the second cushion block includes a second abutting portion and a second limiting portion, the second abutting portion protrudes from the second limiting portion, the top of the second abutting portion abuts against the second ejector, the bottom of the second cushion block abuts against the fourth cushion block, and a second gap is provided between the second abutting portion and the ejector upper plate along the movement direction of the second ejector.

[0010] Further preferably, the distance of the second gap is 0.2 cm.

[0011] Further preferably, the mold further comprises a second ejector pin insert, the second ejector pin insert is arranged in an ejector upper plate, and the second ejector pin is penetrated through the second ejector pin insert.

[0012] Further preferably, the number of the first ejector pins and the number of the second ejector pins are both 2, and the first ejector pins and the second ejector pins are symmetrically arranged on the ejector upper plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model has a compact structure and can realize the function of secondary ejection in a common mold structure. Compared with the traditional secondary ejection mold structure, the utility model simplifies the mold and reduces the mold cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 A magnified schematic diagram of AA in the middle;

[0018] Figure 3 It is a schematic diagram of the structure of the cooperation between the first cushion block and the fourth cushion block;

[0019] Figure 4 It is a schematic diagram of the structure of the cooperation between the second cushion block and the ejector lower plate;

[0020] Illustrations: 101-male mold fixing plate, 102-elevator lower plate, 1021-second accommodating cavity, 103-elevator upper plate, 104-male mold pad, 105-elevator plate, 201-first ejector, 202-second ejector, 203-second ejector insert, 301-first cushion block, 3011-first abutting portion, 3012-first limiting portion, 302-second cushion block, 3021-second abutting portion, 3022-second limiting portion, 303-third cushion block, 304-fourth cushion block, 3041-first accommodating cavity, 401-spring, L1-first gap, L2-second gap.

[0021] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0022] In order to better understand the utility model, a more detailed description of various aspects of the utility model will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of embodiments of the utility model, and do not limit the scope of the utility model in any way. Throughout the specification, the same figure numbers refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0024] It should also be understood that the terms "comprises", "including", "having", "includes" and / or "comprising", when used in this specification, indicate the presence of the stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present invention, "may" is used to mean "one or more embodiments of the present invention". And, the term "exemplary" is intended to refer to an example or illustration.

[0025] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as commonly understood by ordinary technicians in the field to which the utility model belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] like Figures 1 to 4 As shown, the utility model provides a mold structure capable of realizing secondary ejection, including a male mold fixing plate 101, an ejector lower plate 102 and an ejector upper plate 103 stacked in sequence from bottom to top, a male mold pad 104 is arranged above the ejector upper plate 103, the male mold fixing plate 101 is used to install the mold as a whole on the machine platform, and the upper portion of the male mold pad 104 is used to simulate injection molding products or mold inserts and other structures. A top plate 105 is arranged on one side of the ejector lower plate 102, and the top plate 105 drives the ejector lower plate 102 to move upward under the action of an external force.

[0028] The first cushion block 301 is inserted into the ejector lower plate 102, and the first ejector 201 and the second ejector 202 are arranged in the ejector upper plate 103. In one embodiment, the number of the first ejector 201 and the second ejector 202 can be two, and the first ejector 201 and the second ejector 202 are symmetrically arranged on the ejector upper plate 103. The bottom of the first ejector 201 rests on the first cushion block 301, and the bottom of the second ejector 202 rests on the second cushion block 302, which is arranged in the ejector lower plate 102; the third cushion block 303 is arranged on the male mold fixing plate 101, and the bottom of the third cushion block 303 is provided with a spring 401, and the bottom of the first cushion block 301 rests on the third cushion block 303. The spring 401 is in a compressed state before the mold is opened. When the jig is opened, the spring 401 rebounds, thereby driving the third cushion block 303 and the first cushion block 301 to move upward, thereby realizing the upward movement of the first ejector pin 201 and completing the first ejection. At the same time, the ejector plate 105 is driven by an external force to drive the ejector lower plate 102 to move upward, which can also cause the second ejector pin 202 to move upward, completing the second ejection.

[0029] More specifically, the mold further includes a fourth cushion block 304, which is sandwiched between the male mold fixing plate 101 and the ejector lower plate 102 and fixed to the male mold fixing plate 101 by bolts. The fourth cushion block 304 is provided with a first accommodating cavity 3041, and the first cushion block 301 passes through the first accommodating cavity 3041. The first cushion block 301 includes a first abutting portion 3011 and a first limiting portion 3012, and the first limiting portion 3012 protrudes from the first abutting portion 3011. The top of the first abutting portion 3011 abuts against the first ejector 201, and a first gap L1 is provided between the first limiting portion 3012 and the fourth cushion block 304 along the moving direction of the first ejector 201. In one embodiment, the distance of the first gap L1 may be 0.5 cm. It can be understood that when the spring 401 rebounds, it pushes the third pad 303 above to move upward, and there is a gap between the third pad 303 and the fourth pad 304. After the third pad 303 and the first pad 301 move the distance of the first gap L1, they are limited and supported by the fourth pad 304, and the movement of the first ejector pin 201 stops, and the first ejection is completed.

[0030] More specifically, the upper end of the ejector upper plate 103 is provided with a second accommodating cavity 1021, the second cushion block 302 is provided in the second accommodating cavity 1021, the second cushion block 302 includes a second abutting portion 3021 and a second limiting portion 3022, the second abutting portion 3021 protrudes from the second limiting portion 3022, the top of the second abutting portion 3021 abuts against the second ejector 202, the bottom of the second cushion block 302 abuts against the fourth cushion block 304, and a second gap L2 is provided between the second abutting portion 3021 and the ejector upper plate 103 along the movement direction of the second ejector 202. In one embodiment, the distance of the second gap L2 may be 0.2 cm.

[0031] The second gap L2 means that the ejector upper plate 103 will abut against the second abutment portion 3021 only after moving upward a certain distance. The second gap L2 is set to delay ejection, that is, after completing the first ejection, the second ejection is performed, thereby limiting the order of the secondary ejection. It is understandable that after the mold is opened and the first ejection is completed, the ejector plate 105 is acted upon by an upward external force, which drives the ejector lower plate 102 to move upward by the distance of the second gap L2, and then the ejector lower plate 102 abuts against the second abutment portion 3021 of the second cushion block 302. When the external force continues to be applied, the ejector lower plate 102 drives the second cushion block 302 to move upward, and the second cushion block 302 drives the second ejector 202 to move upward, completing the secondary ejection. The above scheme has a compact structure and can realize the function of secondary ejection in an ordinary mold structure. Compared with the traditional secondary ejection mold structure, the utility model simplifies the mold and reduces the mold cost.

[0032] More specifically, the mold further includes a second ejector insert 203 , which is disposed in the ejector upper plate 103 , through which the second ejector 202 is passed, and the second ejector 202 is installed in the ejector upper plate 103 via the second ejector insert 203 .

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A mold structure capable of realizing secondary ejection, characterized in that: The invention comprises a male mold fixing plate (101), an ejector lower plate (102) and an ejector upper plate (103) which are stacked in sequence from bottom to top; a male mold pad (104) is provided above the ejector upper plate (103); a top plate (105) is provided on one side of the ejector lower plate (102); the top plate (105) drives the ejector lower plate (102) to move upward under the action of an external force; a first cushion block (301) is inserted into the ejector lower plate (102); a first ejector (201) is provided in the ejector upper plate (103); 1) and a second ejector pin (202), the bottom of the first ejector pin (201) rests on the first cushion block (301), the bottom of the second ejector pin (202) rests on the second cushion block (302), and the second cushion block (302) is arranged in the ejector lower plate (102); a third cushion block (303) is arranged on the male mold fixing plate (101), a spring (401) is arranged at the bottom of the third cushion block (303), and the bottom of the first cushion block (301) rests on the third cushion block (303).

2. A mold structure capable of realizing secondary ejection according to claim 1, characterized in that: The mold further comprises a fourth cushion block (304), the fourth cushion block (304) being clamped between the male mold fixing plate (101) and the ejector pin lower plate (102) and being fixed to the male mold fixing plate (101) by bolts; a first accommodating cavity (3041) is provided on the fourth cushion block (304), the first cushion block (301) passes through the first accommodating cavity (3041), the first cushion block (301) comprises a first abutting portion (3011) and a first limiting portion (3012), the first limiting portion (3012) protruding from the first abutting portion (3011), the top of the first abutting portion (3011) abuts against the first ejector pin (201), and a first gap is provided between the first limiting portion (3012) and the fourth cushion block (304) along the movement direction of the first ejector pin (201).

3. A mold structure capable of realizing secondary ejection according to claim 2, characterized in that: The distance of the first gap is 0.5 cm.

4. A mold structure capable of realizing secondary ejection according to claim 2, characterized in that: A second accommodating cavity (1021) is provided at the upper end of the ejector upper plate (103); the second cushion block (302) is provided in the second accommodating cavity (1021); the second cushion block (302) comprises a second abutting portion (3021) and a second limiting portion (3022); the second abutting portion (3021) protrudes from the second limiting portion (3022); the top of the second abutting portion (3021) abuts against the second ejector (202); the bottom of the second cushion block (302) abuts against the fourth cushion block (304); and a second gap is provided between the second abutting portion (3021) and the ejector upper plate (103) along the movement direction of the second ejector (202).

5. A mold structure capable of realizing secondary ejection according to claim 4, characterized in that: The distance of the second gap is 0.2 cm.

6. The mold structure capable of realizing secondary ejection according to claim 1, characterized in that: The mold further comprises a second ejector pin insert (203), wherein the second ejector pin insert (203) is arranged in an ejector pin upper plate (103), and the second ejector pin (202) is inserted through the second ejector pin insert (203).

7. The mold structure capable of realizing secondary ejection according to claim 1, characterized in that: The number of the first ejector pin (201) and the number of the second ejector pin (202) are both two, and the first ejector pin (201) and the second ejector pin (202) are symmetrically arranged on the ejector pin upper plate (103).

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