Front mold spring pitched roof core-pulling structure and mold

Abstract

The invention provides a front mold spring pitched roof core-pulling structure and a mold, the front mold spring pitched roof core-pulling structure comprises a panel, a stripper plate, a front mold plate, a rear mold plate and a bottom plate in sequence from top to bottom, a containing cavity is formed in the stripper plate and / or the front mold plate, and an ejector plate is arranged in the containing cavity; the front mold spring pitched roof core-pulling structure further comprises a front mold pitched roof which is movably arranged in the front mold, the upper end of the front mold pitched roof is connected with the ejector plate, and the lower end of the front mold pitched roof is in contact with a buckling position of a product; the panel is provided with a nitrogen spring, and the driving end of the nitrogen spring is connected with the ejector plate; and the ejector plate moves downwards under the driving action of the nitrogen spring to drive the front mold inclined ejector to synchronously move downwards so as to be separated from the buckling position of the product. According to the front mold spring pitched roof core-pulling structure, the nitrogen spring is innovatively used for driving the ejector plate to move, so that the front mold pitched roof is dragged to move in the mold opening process and is separated from a buckling position, and a product is smoothly demolded.

Description

Technical Field

[0001] The invention relates to the technical field of moulds, and in particular to a front mould spring inclined top core pulling structure and a mould. Background Art

[0002] In the technical field of mold injection molding, for products with buckles, the release and core pulling process is essential in the mold opening process. In the prior art, when encountering the above-mentioned product structure with buckles, it is generally necessary to make a mechanical buckle on the mold to eject the front template or the ejector plate, which will make the mold structure complicated and difficult to install. For this reason, the present application designs a new inclined ejector core pulling structure to simplify the entire mold structure. Summary of the invention

[0003] The purpose of the present invention is to provide a front mold spring inclined top core pulling structure and a mold, aiming to solve the technical problem of how to simplify the core pulling structure.

[0004] In order to achieve the above object, the technical solutions of the present invention are:

[0005] The present invention provides a front mold spring inclined top core pulling structure, which comprises: from top to bottom, a panel, a stripping plate, a front mold plate, a rear mold plate and a bottom plate, wherein:

[0006] The stripping plate and / or the front template is provided with a receiving cavity, and the receiving cavity is provided with an ejector plate;

[0007] The front mold spring inclined top core pulling structure also includes a front mold inclined top, which is movably arranged in the front mold, the upper end of the front mold inclined top is connected to the ejector plate, and the lower end of the front mold inclined top is in contact with the buckle position of the product;

[0008] The panel is provided with a nitrogen spring, and the driving end of the nitrogen spring is connected to the ejector plate;

[0009] The ejector plate moves downward under the driving action of the nitrogen spring, driving the front mold inclined ejector to move downward synchronously to disengage from the buckle position of the product.

[0010] Compared with the prior art, the front mold spring inclined ejector core pulling structure of the present invention innovatively utilizes a nitrogen spring to drive the ejector plate to move, thereby dragging the front mold inclined ejector to move during the mold opening process, disengaging the buckle position, and allowing the product to be demolded smoothly.

[0011] In one embodiment, a first opening is provided below the stripper plate, and a second opening is provided above the front template;

[0012] The first opening and the second opening are combined to form the accommodating cavity.

[0013] In one embodiment, the front mold inclined ejector includes a positioning block and an inclined ejector rod, the positioning block is arranged on the lower side of the ejector plate, and a slide groove is arranged in the positioning block;

[0014] The upper end of the inclined ejector rod is slidably arranged in the sliding groove, and the lower end of the inclined ejector rod is in contact with the buckle position of the product.

[0015] In one embodiment, a storage cavity is provided at the lower side of the accommodating cavity, a slanted top guide block is fixed in the storage cavity, and the slanted top guide block is provided with a guide groove; the slanted top rod is movably arranged in the guide groove.

[0016] In one embodiment, the front mold spring inclined ejector core pulling structure also includes a front mold return pin, the upper end of the front mold return pin is fixedly connected to the ejector pin plate, and the lower end of the front mold return pin is against the rear mold.

[0017] In one embodiment, the ejector plate includes a first ejector plate and a second ejector plate, wherein the second ejector plate is detachably arranged below the first ejector plate; a step groove is arranged on the upper side of the second ejector plate;

[0018] The upper end of the front mold return pin is provided with a limiting portion extending in the circumferential direction, and the limiting portion abuts against the step groove.

[0019] In one embodiment, a concave hole is provided on the upper side of the first ejector plate; and the driving end of the nitrogen spring is arranged in the concave hole.

[0020] In one embodiment, the number of the nitrogen springs is the same as the number of the front mold return pins, and each of the nitrogen springs and each of the front mold return pins are located on the same axis.

[0021] In one embodiment, the front mold spring inclined top core pulling structure does not need to be provided with a mechanical buckle.

[0022] The present invention provides a mould, which comprises the front mould spring inclined top core pulling structure as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 It is a schematic diagram of a mold of the prior art;

[0025] Figure 2 It is a three-dimensional diagram of the front mold spring inclined top core pulling structure of the present application;

[0026] Figure 3It is a transverse cross-sectional view of the front mold spring inclined top core pulling structure of the present application;

[0027] Figure 4 It is a longitudinal cross-sectional view of the front mold spring inclined top core pulling structure of the present application (the front mold plate, rear mold plate and bottom plate are omitted);

[0028] Figure 5 It is an oblique cross-sectional view of the front mold spring inclined top core pulling structure of the present application (the front mold plate, rear mold plate and bottom plate are omitted);

[0029] Figure 6 yes Figure 5 Magnified image of .

[0030] Description of reference numerals:

[0031] 10 panel, 110 nitrogen spring, 20 stripper plate, 30 front template, 40 rear template, 50 bottom plate, 60 accommodating cavity, 601 first opening, 602 second opening, 611 first ejector plate, 6111 concave hole, 612 second ejector plate, 6121 step groove, 620 front mold inclined ejector, 621 positioning block, 622 inclined ejector rod, 623 inclined ejector guide block, 630 front mold return pin, 631 limit part, 70 products DETAILED DESCRIPTION

[0032] In order to better illustrate the present invention, the present invention is further described in detail below with reference to the accompanying drawings.

[0033] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the embodiments of the present application.

[0034] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0035] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0036] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0037] Combination Figures 2 to 6 As shown, the present invention provides a front mold spring inclined top core pulling structure, which includes: from top to bottom, it includes a panel 10, a stripper plate 20, a front template 30, a rear template 40 and a bottom plate 50, wherein the stripper plate 20 and / or the front template 30 are provided with a accommodating cavity 60, and the accommodating cavity 60 is provided with an ejector plate; the front mold spring inclined top core pulling structure also includes a front mold inclined top 620, which is movably arranged in the front mold, the upper end of the front mold inclined top 620 is connected to the ejector plate, and the lower end of the front mold inclined top 620 is in contact with the buckle position of the product 70; the panel 10 is provided with a nitrogen spring 110, and the driving end of the nitrogen spring 110 is connected to the ejector plate; the ejector plate moves downward under the driving action of the nitrogen spring 110, driving the front mold inclined top 620 to move downward synchronously to disengage from the buckle position of the product.

[0038] Specifically, when the mold is opened, the front mold is separated from the rear mold, and the nitrogen spring 110 works and drives the ejector plate. The ejector plate starts to move downward under the elastic force of the nitrogen spring 110, thereby driving the front mold inclined ejector 620 to move downward relative to the front mold. The front mold inclined ejector 620 reaches the ejection position and leaves the buckle position, so that the product can be demolded smoothly.

[0039] Compared with the prior art, the front mold spring inclined ejector core pulling structure of the present invention innovatively utilizes the nitrogen spring 110 to drive the ejector plate to move, thereby dragging the front mold inclined ejector 620 to move during the mold opening process and disengaging the buckle position, so that the product can be demolded smoothly. In addition, by adding the nitrogen spring 110 to the front mold, the product can be demolded smoothly without strain or burring, and the structure is stable for mass production without problems such as mold stepping and screw breakage.

[0040] In this embodiment, a first opening 601 is provided below the stripping plate 20, and a second opening 602 is provided above the front template 30; the first opening 601 and the second opening 602 are combined to form the accommodating cavity 60. In this embodiment, after the stripping plate 20 is combined with the front template 30, since the first opening 601 and the second opening 602 are arranged correspondingly, the first opening 601 and the second opening 602 are combined to form the accommodating cavity 60, so that there is enough space between the stripping plate 20 and the front template 30 to place the ejector plate. Moreover, since the accommodating cavity 60 is composed of the first opening 601 and the second opening 602, it is convenient to place the ejector plate, and the space in the stripping plate 20 and the front template 30 is borrowed respectively, so that the volume of the stripping plate 20 and the front template 30 can be made as small as possible.

[0041] In other embodiments, the accommodating cavity 60 may be disposed only in the stripping plate 20 , or may be disposed only in the front template 30 .

[0042] In this embodiment, the front mold lifter 620 includes a positioning block 621 and a lift rod 622. The positioning block 621 is arranged on the lower side of the ejector plate, and a slide groove is arranged in the positioning block 621. The upper end of the lift rod 622 is slidably arranged in the slide groove, and the lower end of the lift rod 622 contacts the buckle position of the product. When the mold is opened, the ejector plate moves downward relative to the front mold plate 30, and the positioning block 621 is fixed relative to the ejector plate. Under the guidance of the front mold plate 30, the upper end of the lift rod 622 slides in the slide groove, thereby driving the lower end of the lift rod 622 to separate from the buckle position of the product; and when the mold is closed, the lower end of the lift rod 622 contacts the buckle position of the product.

[0043] Furthermore, a storage cavity is provided at the lower side of the accommodating cavity 60, and a slanted top guide block 623 is fixed in the storage cavity, and the slanted top guide block is provided with a guide groove; the slanted top rod 622 is movably arranged in the guide groove, and the slanted top guide block is used to guide the slanted top rod 622.

[0044] In this embodiment, the front mold spring inclined ejector core pulling structure also includes a front mold return pin 630, the upper end of the front mold return pin 630 is fixedly connected to the ejector plate, and the lower end of the front mold return pin 630 is against the rear mold, so that the front mold return pin 630 can be used to support the ejector plate.

[0045] In this embodiment, the ejector plate includes a first ejector plate 611 and a second ejector plate 612, wherein the second ejector plate 612 is detachably disposed below the first ejector plate 611; a step groove 6121 is disposed on the upper side of the second ejector plate 612; and a limiting portion 631 extending in the circumferential direction is disposed at the upper end of the front mold return pin 630, wherein the limiting portion 631 abuts against the step groove 6121. In this embodiment, the matching mode of the limiting portion 631 and the step groove 6121 is adopted to facilitate the installation and replacement of the front mold return pin 630.

[0046] Furthermore, a concave hole 6111 is provided on the upper side of the first ejector plate 611 ; the driving end of the nitrogen spring 110 is disposed in the concave hole 6111 so as to narrow the volume in the longitudinal direction.

[0047] Furthermore, the number of the nitrogen springs 110 is the same as the number of the front mold return pins 630, and each of the nitrogen springs 110 and each of the front mold return pins 630 are on the same axis, so that the front mold return pins 630 and the nitrogen springs 110 are arranged one by one, and the force of the nitrogen springs 110 on the ejector plate is reasonably distributed.

[0048] In this embodiment, the front mold spring inclined top core pulling structure does not need to be equipped with mechanical buckles. Through this innovation in mold structure, the structure of the mold of this type of product is extremely effectively simplified, the cost of mold manufacturing is saved, and the manufacturing efficiency of the mold is improved. Even after the structural innovation, the mold has more positions to enhance cooling, reduce product deformation, and improve the efficiency of mold mass production; and without mechanical buckles, the volume of the mold becomes smaller, and if the clamping force allows, a smaller injection molding machine can be used for production. It should be noted that if Figure 1 As shown, the mold of the prior art needs to be provided with a mechanical buckle.

[0049] The present invention provides a mould, which comprises the front mould spring inclined top core pulling structure as described above.

[0050] In the description of the present invention, it is necessary to understand that the terms "vertical", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0051] If the words "first", "second", etc. are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only to facilitate the description of the present invention and simplify the description. Unless otherwise stated, the above words have no special meaning.

[0052] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A front mold spring inclined top core pulling structure, characterized in that: include: It includes a panel, a stripper plate, a front template, a rear template and a bottom plate from top to bottom, wherein a receiving cavity is provided in the stripper plate and / or the front template, and an ejector plate is provided in the receiving cavity; The front mold spring inclined top core pulling structure also includes a front mold inclined top, which is movably arranged in the front mold, the upper end of the front mold inclined top is connected to the ejector plate, and the lower end of the front mold inclined top is in contact with the buckle position of the product; The panel is provided with a nitrogen spring, and the driving end of the nitrogen spring is connected to the ejector plate; The ejector plate moves downward under the driving action of the nitrogen spring, driving the front mold inclined ejector to move downward synchronously to disengage from the buckle position of the product.

2. The front mold spring inclined top core pulling structure according to claim 1 is characterized in that: A first opening is provided below the stripping plate, and a second opening is provided above the front template; The first opening and the second opening are combined to form the accommodating cavity.

3. The front mold spring inclined top core pulling structure according to claim 2 is characterized in that: The front mold inclined ejector includes a positioning block and an inclined ejector rod, the positioning block is arranged on the lower side of the ejector plate, and a sliding groove is arranged in the positioning block; The upper end of the inclined ejector rod is slidably arranged in the sliding groove, and the lower end of the inclined ejector rod is in contact with the buckle position of the product.

4. The front mold spring inclined top core pulling structure according to claim 3 is characterized in that: A storage cavity is provided at the lower side of the accommodating cavity, a slanted top guide block is fixed in the storage cavity, and the slanted top guide block is provided with a guide groove; the slanted top rod is movably arranged in the guide groove.

5. The front mold spring inclined top core pulling structure according to claim 1 is characterized in that: The front mold spring inclined ejector core pulling structure also includes a front mold return pin, the upper end of the front mold return pin is fixedly connected to the ejector pin plate, and the lower end of the front mold return pin is against the rear mold.

6. The front mold spring inclined top core pulling structure according to claim 5 is characterized in that: The ejector plate comprises a first ejector plate and a second ejector plate, wherein the second ejector plate is detachably arranged below the first ejector plate; a step groove is arranged on the upper side surface of the second ejector plate; The upper end of the front mold return pin is provided with a limiting portion extending in the circumferential direction, and the limiting portion abuts against the step groove.

7. The front mold spring inclined top core pulling structure according to claim 6 is characterized in that: A concave hole is provided on the upper side of the first ejector plate; the driving end of the nitrogen spring is arranged in the concave hole.

8. The front mold spring inclined top core pulling structure according to claim 5 is characterized in that: The number of the nitrogen springs is the same as the number of the front mold return pins, and each of the nitrogen springs and each of the front mold return pins are located on the same axis.

9. The front mold spring inclined top core pulling structure according to claim 1 is characterized in that: The front mold spring inclined top core pulling structure does not need to be provided with a mechanical buckle.

10. A mould comprising the front mould spring inclined top core pulling structure as claimed in any one of claims 1 to 9.

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