Core-pulling avoiding structure for preventing hardware at bottom of sliding block from stepping on mold

Abstract

The utility model belongs to the technical field of injection molds, and provides an avoiding core-pulling structure for preventing sliding block bottom hardware from stepping on a mold, which comprises a first sliding block assembly, a second sliding block assembly, a shovel base assembly, a first module piece, a second module piece, a support piece and a hardware piece body. When the two module pieces are matched in a mold closing mode, the second sliding block assembly can further act on the hardware piece body to be matched with the first module piece and be tightly attached to the glue sealing position of the first sliding block assembly under the action of the shovel base assembly, when the two module pieces are separated in a mold opening mode, the shovel base assembly is separated from the second sliding block assembly, and the shovel base assembly is tightly attached to the glue sealing position of the first sliding block assembly under the elastic force action of the elastic piece. And the position of the second sliding block body is restored and drives the hardware body to move relative to the mounting hole, so that the top of the hardware body is lower than the top end face of the mounting hole, and the problem that in the mounting and matching process of the first module piece and the first sliding block assembly, the first sliding block assembly collides with the hardware which is not stably placed, and mold treading is caused can be solved.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, specifically relating to an avoidance core-pulling structure to prevent the bottom hardware of the slider from stepping on the mold. Background Technology

[0002] For finished products with internal transverse through holes or slots, core pulling and demolding are required after injection molding. Demolding is the last step in the injection molding process, and its quality ultimately determines the quality of the plastic part. Common demolding methods include ejector pins, ejector sleeves, flat ejector pins, and push plates. During demolding, due to factors such as gravity tilting and uneven placement, the top of the hardware part may not be placed stably in direct contact with the slider. During the process of the slider entering the core, the slider head may collide with the unstable hardware part, causing mold collapse. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide an avoidance core-pulling structure to prevent the bottom hardware of the slider from stepping on the mold.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A core-pulling structure for preventing the bottom hardware of the slider from stepping on the mold includes a first slider assembly, a second slider assembly, a shovel base assembly, a first module component, a second module component, a support component, and a hardware body;

[0006] The first module component, the shovel base assembly, and the first slider assembly are connected, and the first module component is provided with mounting holes;

[0007] The second module has a cavity for placing the second slider assembly and the support member, and a first opening and a second opening communicating with the cavity. The second slider assembly is disposed above the support member. The second slider assembly includes a second slider body and an elastic member. The hardware body is disposed on the top of the second slider body and cooperates with the first opening. The elastic member is disposed on the second slider body.

[0008] When the first module and the second module are engaged, one end of the shovel base assembly enters the cavity through the second opening and is positioned between the second slider assembly and the support member. The second slider assembly moves toward the first module and engages the hardware body with the mounting hole of the first module. The elastic member is in a first compressed state.

[0009] When the first module is separated from the second module, one end of the shovel base assembly is separated from the second module, the elastic element is in a second compression state and causes the second slider assembly to move away from the first module, the hardware body moves relative to the mounting hole, and the top of the hardware body is lower than the top end face of the mounting hole.

[0010] Preferably, the first slider assembly includes a first slider seat and a first slider body, the first slider body and the shovel base assembly are disposed on one end face of the first slider seat, and the first module is connected to the first slider body;

[0011] The first module is positioned above the shovel base assembly.

[0012] Preferably, one end of the shovel base assembly is provided with a shovel base inclined portion, the shovel base inclined portion having an inclined low end and an inclined high end, the inclined low end being arranged away from the direction of the first slider assembly.

[0013] Preferably, the second slider body includes a second slider seat and a second slider support column. The second slider support column is disposed on the second slider seat. The bottom of the second slider seat is disposed on the slider inclined portion that cooperates with the inclined portion of the shovel base. The hardware body cooperates with the top of the second slider support column. The second slider seat is provided with a mounting groove for placing the elastic element.

[0014] Preferably, the top of the second slider support column is located on the column that mates with the hardware body, and the hardware body is provided with a mating hole that mates with the column.

[0015] Preferably, the second module is provided with a channel portion that cooperates with the second slider support column, and the channel portion is respectively connected to the first opening portion and the cavity.

[0016] Preferably, the top of the support member is provided with a sliding groove that mates with one end of the shovel base assembly.

[0017] Preferably, the elastic element is a spring element, and the number of elastic elements is two or more.

[0018] Preferably, the depth of the mounting hole is greater than the height of the hardware body.

[0019] Compared with the prior art, the beneficial effects of this utility model include:

[0020] In this application, when the two modular components are molded together, the second slider assembly, under the action of the shovel base assembly, can further engage the hardware body with the first modular component and tightly adhere to the sealing area of ​​the first slider assembly. When the two modular components are molded apart, the shovel base assembly separates from the second slider assembly. Under the elastic force of the elastic element, the second slider body returns to its original position and drives the hardware body to move relative to the mounting hole, so that the top of the hardware body is lower than the top end face of the mounting hole. This avoids the height difference between the top of the hardware body and the top end face of the mounting hole caused by factors such as gravity tilting or uneven placement. It also prevents the first slider assembly from colliding with an unstable hardware body during the installation and engagement of the first modular component and the first slider assembly, thus preventing mold collapse. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the present invention.

[0023] Figure 2 This is a schematic diagram of the second module component of this utility model in its separated state.

[0024] Figure 3 This is a schematic diagram showing the cooperation between the shovel base assembly and the second slider assembly of this utility model.

[0025] Figure 4 This is a schematic diagram of the structure of the second slider of this utility model.

[0026] Figure 5 This is a schematic diagram of the structure of the shovel base component of this utility model.

[0027] Figure 6 This is a structural schematic diagram of the first module of this utility model.

[0028] Figure 7 This is a structural schematic diagram of the second module of this utility model.

[0029] Figure 8 This is a cross-sectional view of the shovel base assembly and the second slider body of the present invention within the second module component.

[0030] in:

[0031] 1-First module component, 2-Second module component, 3-Support component, 4-Hardware body, 5-Cavity, 6-First opening, 7-Second opening, 8-Second slider seat, 9-Elastic component, 10-Mounting hole, 11-First slider seat, 12-First slider body, 13-Shovel base assembly, 14-Shovel base inclined part, 15-Second slider support column, 16-Column body, 17-Matching hole, 18-Channel part, 19-Sliding groove part, 20-Mounting groove part, 21-Slider inclined part. Detailed Implementation

[0032] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0034] Example:

[0035] like Figure 1-8 As shown, this embodiment provides an obstacle avoidance core-pulling structure to prevent the bottom hardware of the slider from stepping on the mold, including a first slider assembly, a second slider assembly, a shovel base assembly 13, a first module 1, a second module 2, a support 3, and a hardware body 4;

[0036] The first module 1 and the shovel base assembly 13 are connected to the first slider assembly, and the first module 1 is provided with mounting holes 10;

[0037] The second module 2 has a cavity 5 for placing the second slider assembly and the support 3, and a first opening 6 and a second opening 7 communicating with the cavity 5. The second slider assembly is disposed above the support 3. The second slider assembly includes a second slider body and an elastic member 9. The hardware body is disposed on the top of the second slider body and cooperates with the first opening 6. The elastic member 9 is disposed on the second slider body.

[0038] When the first module 1 and the second module 2 cooperate, one end of the shovel base assembly 13 enters the cavity 5 through the second opening 7 and is located between the second slider assembly and the support 3. The second slider assembly moves toward the first module 1 and makes the hardware body cooperate with the mounting hole 10 of the first module 1. The elastic member 9 is in the first compression state.

[0039] When the first module 1 and the second module 2 are separated, one end of the shovel base assembly 13 is separated from the second module 2, the elastic member 9 is in a second compression state and causes the second slider assembly to move away from the first module 1, the hardware body moves relative to the mounting hole 10, and the top of the hardware body is lower than the top end face of the mounting hole 10.

[0040] In this embodiment, when the two modules are molded together, the second slider assembly, under the action of the shovel base assembly 13, can further engage the hardware body with the first module 1 and tightly adhere to the sealing area of ​​the first slider assembly. When the two modules are molded apart, the shovel base assembly 13 separates from the second slider assembly. Under the elastic force of the elastic member 9, the second slider body returns to its original position and drives the hardware body to move relative to the mounting hole 10, so that the top of the hardware body is lower than the top end face of the mounting hole 10. According to design requirements, it can be 1mm lower. This can avoid the height difference between the top of the hardware body and the top end face of the mounting hole 10 due to factors such as gravity tilting and uneven placement. It also prevents the first slider assembly from colliding with the hardware that is not placed stably during the installation and engagement of the first module 1 and the first slider assembly, thus preventing the problem of mold stepping.

[0041] The first slider assembly in this embodiment includes a first slider seat 11 and a first slider body 12. The first slider body 12 and the shovel base assembly 13 are disposed on one end face of the first slider seat 11. The first module 1 is connected to the first slider body 12. Specifically, the first module 1 is sleeved on the outside of the first slider body 12.

[0042] The first module 1 is positioned above the shovel base assembly 13.

[0043] The structure of the interaction between the shovel base assembly 13 and the second slider assembly in this embodiment is as follows:

[0044] One end of the shovel base assembly 13 is provided with a shovel base inclined portion 14, which has an inclined lower end and an inclined higher end, with the inclined lower end being set away from the direction of the first slider assembly.

[0045] The second slider body in this embodiment includes a second slider seat 8 and a second slider support column 15. The second slider support column 15 is disposed on the second slider seat 8. The bottom of the second slider seat 8 is disposed on the slider inclined portion 21 that cooperates with the shovel base inclined portion 14. The hardware body cooperates with the top of the second slider support column 15. The second slider seat 8 is provided with a mounting groove portion 20 for placing the elastic element 9, which can prevent the elastic element 9 from shaking.

[0046] In this embodiment, the top of the second slider support column 15 is provided on the column 16 that cooperates with the hardware body 3. The hardware body 3 is provided with a mating hole 17 that cooperates with the column 16. Specifically, the mating method between the column 16 and the mating hole 17 is an interference fit.

[0047] Specifically, the second module 2 is provided with a channel portion 18 that cooperates with the second slider support column 15. The channel portion 18 is respectively connected to the first opening portion 6 and the cavity 5. The function of the channel portion 18 is to ensure the stability of the second slider support column 15 during movement.

[0048] Specifically, the top of the support member 3 is provided with a sliding groove 19 that mates with one end of the shovel base assembly 13.

[0049] In this embodiment, the elastic element 9 is a spring element, and the number of elastic elements 9 is two or more.

[0050] Specifically, the depth of the mounting hole 10 is greater than the height of the hardware body.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A relief core-pulling structure for preventing the bottom hardware of a slider from being stepped on, characterized by, The first slider assembly, the second slider assembly, the shovel base assembly, the first module, the second module, the support and the hardware body are included. The first module is connected with the first slider assembly, and the first module is provided with a mounting hole. The second module has a cavity for placing the second slider assembly and the support, and a first opening and a second opening communicating with the cavity. When the first module is separated from the second module, one end of the shovel base assembly is separated from the second module, the elastic member is in a second compression state and moves the second slider assembly away from the first module, the hardware body moves relative to the mounting hole, and the top of the hardware body is lower than the top end surface of the mounting hole. The first slider assembly includes a first slider seat and a first slider body, and the first slider body and the shovel base assembly are arranged on one end surface of the first slider seat.

2. The relief core structure for preventing the die sinking of the slider bottom hardware according to claim 1, wherein, The first module is arranged above the shovel base assembly. One end of the shovel base assembly is provided with a shovel base inclined portion, and the shovel base inclined portion has an inclined low end and an inclined high end.

3. The relief core structure for preventing the die sinking of the slider bottom hardware according to claim 1, wherein, The second slider body includes a second slider seat and a second slider support column, and the second slider support column is arranged on the second slider seat.

4. The relief core structure for preventing the die sinking of the slider bottom hardware according to claim 3, wherein The top of the second slider support column is provided with a column body matched with the hardware body, and the hardware body is provided with a matching hole matched with the column body.

5. The relief core structure for preventing the die sinking of the slider bottom hardware according to claim 4, wherein The second module is provided with a channel matched with the second slider support column, and the channel is respectively arranged in communication with the first opening and the cavity.

6. The relief core structure for preventing the die sinking of the slider bottom hardware according to claim 4, wherein The top of the support is provided with a sliding groove matched with one end of the shovel base assembly.

7. The relief core structure for preventing the die sinking of the slider bottom hardware according to claim 1, wherein The elastic member is a spring member, and the number of the elastic member is two or more.

8. The relief core structure for preventing the die sinking of the slider bottom hardware according to claim 1, wherein, The depth of the mounting hole is greater than the height of the hardware body.

9. The relief core structure for preventing the die sinking of the slider bottom hardware according to claim 1, wherein, ​

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