Secondary forming anti-sticking front mold elastic block structure

Abstract

The utility model provides a secondary forming anti-sticking front mold elastic block structure which comprises a front mold, a rear mold and at least one forming position, and the forming position comprises a front mold elastic block movably arranged on the front mold; the stroke pressing plate is fixedly arranged on the front mold; the upper end of the reset spring abuts against the stroke pressing plate, and the lower end of the reset spring abuts against the front mold elastic block; the upper end of the lifting piece is arranged on the rear mold, and the lower end of the lifting piece is limited on the front mold elastic block; under the action of the elastic force of the reset spring, the front mold elastic block and the front mold form a flat area for placing a hard rubber product, and then a finished product is obtained through mold closing and injection molding; when the mold is opened, the upper side surface of the front mold elastic block and the upper side surface of the front mold are not positioned on the same plane under the pulling action of the lifting piece, so that a finished product is prevented from being adhered to the front mold, and an anti-adhesion function is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of molds, and in particular to a secondary molding anti-stick front mold spring block structure. Background Technology

[0002] like Figure 1 The finished product shown requires two sets of molds for secondary molding. After the hard plastic product is made, it is placed into the soft plastic product mold for injection molding. However, to ensure precision, the hard plastic product must be placed on the front mold. But because the front mold for the hard plastic product has a special structure, the problem of the product sticking to the front mold occurs. Utility Model Content

[0003] The purpose of this invention is to provide a secondary molding anti-stick front mold spring block structure, which aims to solve the technical problem of secondary molding products sticking to the front mold.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model provides a secondary molding anti-stick front mold spring block structure, which includes: a front mold, a rear mold, and at least one molding position, wherein the molding position includes:

[0006] A front mold spring block, which is movably mounted on the front mold;

[0007] The stroke pressure plate is fixedly mounted on the front mold;

[0008] The upper end of the return spring abuts against the travel pressure plate, and the lower end of the return spring abuts against the front mold spring block;

[0009] The upper end of the lifting component is disposed on the rear mold, and the lower end of the lifting component is restricted on the front mold spring block;

[0010] Under the elastic force of the return spring, the upper side of the front mold spring block and the upper side of the front mold are on the same plane and combine to form a product placement area.

[0011] Under the pulling action of the lifting member, the upper side of the front mold spring block is not on the same plane as the upper side of the front mold.

[0012] Compared with the prior art, the front mold spring block of this application forms a flat area with the front mold under the elastic force of the return spring to place the hard plastic product, and then the mold is closed and injection molded to obtain the finished product; when the mold is opened, under the pulling action of the lifting member, the upper side of the front mold spring block and the upper side of the front mold are not on the same plane, so as to avoid the finished product sticking to the front mold and achieve the anti-stick function.

[0013] In one embodiment, the front mold is provided with a receiving cavity, which houses the front mold spring block.

[0014] In one embodiment, the travel pressure plate includes a fixing part and a top abutment part;

[0015] The cavity is provided with a protrusion, and the upper side of the protrusion is fixedly connected to the fixing part;

[0016] The top abutment of the travel pressure plate extends beyond the protrusion, and the top abutment abuts against the upper end of the return spring.

[0017] In one embodiment, the number of return springs is twice the number of bumps, and the return springs are located on the left and right sides of the bumps, respectively.

[0018] The top abutment parts are respectively located at the left and right ends of the fixing part.

[0019] In one embodiment, the number of the protrusions is two, and the two protrusions are respectively located on the front and rear sides of the receiving cavity;

[0020] The number of travel pressure plates is two, and the number of return springs is four.

[0021] In one embodiment, under the elastic force of the return spring, the lower side of the front mold block abuts against the inner wall of the bottom of the receiving cavity.

[0022] In one embodiment, the front mold module is provided with multiple spring mounting slots, and the reset spring is housed in the spring mounting slots.

[0023] In one embodiment, the upper side of the front mold spring block is provided with a lifting hole groove;

[0024] The lifting component is a nylon plug, which includes a locking part and a lifting part. The locking part is fixedly connected to the rear mold, and the lifting part is inserted into the lifting hole groove.

[0025] In one embodiment, the front mold spring block is provided with an outwardly protruding limiting portion;

[0026] During mold opening, the front mold spring block moves upward under the pulling action of the lifting member, and the limiting part abuts against the stroke pressure plate, and the lifting part disengages from the lifting hole groove.

[0027] In one embodiment, during mold closing, the lifting portion is inserted into the lifting hole groove. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0029] Figure 1 This is one of the perspective views (mold opening) of the secondary molding anti-stick front mold block structure of this application;

[0030] Figure 2 This is the second perspective view (mold opening) of the secondary molding anti-stick front mold spring block structure of this application;

[0031] Figure 3 This is a perspective view of the secondary molding anti-stick front mold block structure of this application (the rear mold and part of the front mold are omitted);

[0032] Figure 4 This is a schematic diagram of the front mold spring block and the stroke pressure plate of this application;

[0033] Figure 5 yes Figure 4 Sectional view of AA;

[0034] Figure 6 yes Figure 4 A sectional view of AA.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10 Front mold, 110 Protrusion, 20 Rear mold, 30 Molding position, 310 Front mold spring block, 311 Spring mounting slot, 312 Lifting hole slot, 313 Limiting part, 320 Stroke pressure plate, 330 Return spring, 340 Nylon rubber plug, 40 Finished product Detailed Implementation

[0037] To better illustrate this utility model, a further detailed description of this utility model is provided below with reference to the accompanying drawings.

[0038] It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.

[0039] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0040] In the following description, when referring to the accompanying 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 this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0042] Combination Figures 1 to 6 As shown, this utility model provides a secondary molding anti-stick front mold spring block 310 structure, which includes: a front mold 10, a rear mold 20 and at least one molding position 30. The molding position 30 includes: a front mold spring block 310, which is movably disposed on the front mold 10; a stroke pressure plate 320, which is fixedly disposed on the front mold 10; a return spring 330, the upper end of which abuts against the stroke pressure plate 320 and the lower end of which abuts against the front mold spring block 310; and a lifting member, the upper end of which is disposed on the rear mold 20 and the lower end of which is restricted on the front mold spring block 310.

[0043] Under the elastic force of the return spring 330, the upper side of the front mold spring block 310 and the upper side of the front mold 10 are on the same plane and combine to form a product placement area; under the pulling action of the lifting member, the upper side of the front mold spring block 310 and the upper side of the front mold 10 are not on the same plane.

[0044] Specifically, after the hard plastic product is injection molded, it is placed into the soft plastic product mold (i.e., the mold containing the secondary molding anti-stick front mold spring block 310 structure of this application). During the process of placing the hard plastic product into the mold, the front mold spring block 310 first moves downward to reset under the action of the return spring 330. At this time, the return spring 330 is in the released state, and the upper side of the front mold spring block 310 and the upper side of the front mold 10 are on the same plane and combine to form a product placement area. This application ensures that when placing the hard plastic product, the product placement area is a complete plane, avoiding product problems caused by height differences.

[0045] After placing the hard plastic product and closing the mold, the soft plastic product is injected a second time to obtain the finished product 40. When the mold is opened, the front mold spring block 310 moves upward under the pulling action of the lifting component. At this time, the return spring 330 is in a compressed state. The upper side of the front mold spring block 310 is not on the same plane as the upper side of the front mold 10, which facilitates the demolding of the finished product and achieves anti-sticking.

[0046] Compared with the prior art, in this application, the upper side of the front mold spring block 310 is on the same plane as the upper side of the front mold 10 under the elastic force of the return spring 330, and they are combined to form a product placement area, so as to form a flat area for placing hard plastic products. Then, the mold is closed and injection molded to obtain the finished product. When the mold is opened, under the pulling action of the lifting member, the upper side of the front mold spring block 310 is not on the same plane as the upper side of the front mold 10, so as to avoid the finished product sticking to the front mold 10 and achieve the anti-stick function.

[0047] In this embodiment, the front mold 10 is provided with a receiving cavity, which is recessed downwards and houses the front mold spring block 310. The receiving cavity is used to house the front mold spring block 310, making reasonable use of the space of the front mold 10.

[0048] Further, the stroke pressure plate 320 includes a fixing part and a top abutment part; a protrusion 110 is provided in the receiving cavity, and the upper side of the protrusion 110 is fixedly connected to the fixing part, using the protrusion 110 to install and fix the stroke pressure plate 320; preferably, the stroke pressure plate 320 is fixed to the protrusion 110 by bolts. The top abutment part of the stroke pressure plate 320 extends out of the protrusion 110, and the top abutment part abuts against the upper end of the return spring 330, using the top abutment part to abut against the upper end of the return spring 330, so as to cooperate with the front mold spring block 310 to compress the return spring 330.

[0049] Furthermore, the number of return springs 330 is twice the number of protrusions 110, and the return springs 330 are respectively located on the left and right sides of the protrusions 110; the abutment portions are respectively disposed at the left and right ends of the fixing portion. Specifically, there are two protrusions 110, which are respectively located on the front and rear sides of the receiving cavity; there are correspondingly two stroke pressure plates 320, and correspondingly four return springs 330. In this embodiment, four return springs 330 are respectively disposed on the left and right sides of the two protrusions 110 to uniformly apply elastic force to the front mold spring block 310, so that the upper surface of the front mold spring block 310 after reset is in the same plane as the upper surface of the front mold 10.

[0050] Furthermore, under the elastic force of the reset spring 330, the lower side of the front mold spring 310 abuts against the inner wall of the bottom of the receiving cavity, so that the front mold spring 310 remains fixed in the reset position, ensuring that the upper side of the front mold spring 310 and the upper side of the front mold 10 are on the same plane.

[0051] In this embodiment, the front mold 10 module is provided with a plurality of spring mounting slots 311, and the reset spring 330 is housed in the spring mounting slots 311. The reset spring 330 is housed and guided by the spring mounting slots 311.

[0052] In this embodiment, the upper side of the front mold spring block 310 is provided with a lifting groove 312; the lifting member is a nylon plug 340, which includes a locking part and a lifting part. The locking part is fixedly connected to the rear mold 20, and the lifting part is inserted into the lifting groove 312. Specifically, during mold opening, because the friction between the nylon plug 340 and the lifting groove 312 is greater than the weight of the front mold spring block 310 itself, the front mold spring block 310 moves upward under the pulling action of the lifting member. Furthermore, the front mold spring block 310 is provided with an outwardly protruding limiting part 313. During mold opening, the front mold spring block 310 moves upward under the pulling action of the lifting member, and the limiting part 313 abuts against the stroke pressure plate 320. The stroke pressure plate 320 applies a downward force to the stroke pressure plate 320, and the lifting part disengages from the lifting hole groove 312, facilitating the removal of the finished product. When reuse is required, during mold closing, the lifting part is inserted into the lifting hole groove 312 for the next use.

[0053] In the description of this utility model, it should be understood that the terms "vertical", "horizontal", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0054] If the terms "first" or "second" are used in this document to define the components, those skilled in the art should know that the use of "first" or "second" is merely for the convenience of describing this utility model and simplifying the description, and unless otherwise stated, the above terms have no special meaning.

[0055] This utility model is not limited to the above-described embodiments. If any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. A secondary molding anti-stick front mold spring block structure, comprising a front mold, a rear mold, and at least one molding position, characterized in that, The forming position includes: A front mold spring block, which is movably mounted on the front mold; The stroke pressure plate is fixedly mounted on the front mold; The upper end of the return spring abuts against the travel pressure plate, and the lower end of the return spring abuts against the front mold spring block; The upper end of the lifting component is disposed on the rear mold, and the lower end of the lifting component is restricted on the front mold spring block; Under the elastic force of the return spring, the upper side of the front mold spring block and the upper side of the front mold are on the same plane and combine to form a product placement area. Under the pulling action of the lifting member, the upper side of the front mold spring block is not on the same plane as the upper side of the front mold.

2. The secondary molding anti-sticking front mold block structure according to claim 1, characterized in that: The front mold is provided with a receiving cavity, which houses the front mold spring block.

3. The secondary molding anti-sticking front mold block structure according to claim 2, characterized in that: The travel pressure plate includes a fixing part and a top abutment part; The cavity is provided with a protrusion, and the upper side of the protrusion is fixedly connected to the fixing part; The top abutment of the travel pressure plate extends beyond the protrusion, and the top abutment abuts against the upper end of the return spring.

4. The secondary molding anti-sticking front mold block structure according to claim 3, characterized in that: The number of reset springs is twice the number of the bumps, and the reset springs are located on the left and right sides of the bumps respectively; The top abutment parts are respectively located at the left and right ends of the fixing part.

5. The secondary molding anti-sticking front mold spring block structure according to claim 4, characterized in that: The number of protrusions is two, and the two protrusions are respectively located on the front and rear sides of the receiving cavity; the number of stroke pressure plates is two accordingly, and the number of return springs is four accordingly.

6. The secondary molding anti-sticking front mold block structure according to claim 2, characterized in that: Under the elastic force of the return spring, the lower side of the front mold spring abuts against the inner wall of the bottom of the receiving cavity.

7. The secondary molding anti-stick front mold spring block structure according to any one of claims 1-6, characterized in that: The front mold spring block is provided with multiple spring mounting slots, and the reset spring is housed in the spring mounting slots.

8. The secondary molding anti-sticking front mold block structure according to claim 1, characterized in that: The upper side of the front mold spring block is provided with a lifting hole groove; The lifting component is a nylon plug, which includes a locking part and a lifting part. The locking part is fixedly connected to the rear mold, and the lifting part is inserted into the lifting hole groove.

9. The secondary molding anti-sticking front mold block structure according to claim 8, characterized in that: The front mold spring block is provided with an outwardly protruding limiting part; During mold opening, the front mold spring block moves upward under the pulling action of the lifting member, and the limiting part abuts against the stroke pressure plate, and the lifting part disengages from the lifting hole groove.

10. The secondary molding anti-sticking front mold spring block structure according to claim 8, characterized in that: During mold closing, the lifting part is inserted into the lifting hole groove.

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