A module shrinkage structure

Abstract

This utility model provides a module shrinkage structure, including a shrinkage module body disposed within a mold. The body includes a connecting slider, a guide slider, and two shrinkage sliders. The guide slider is positioned above the product cavity, and the connecting slider is fixedly connected to the top of the guide slider. When the connecting slider drives the guide slider to move longitudinally and separate from the product, it simultaneously drives the shrinkage sliders to move towards the center, thereby causing the flange to disengage from the undercut groove of the product. This facilitates smooth demolding, reduces the use of lateral driving components, lowers costs, provides good synchronization, and results in a more compact overall structure.

Description

Technical Field

[0001] This utility model relates to the field of mold structure technology, and more specifically, to a module internal shrinkage structure. Background Technology

[0002] Currently, in the structural design of plastic products, to meet different process requirements, undercut structures such as side holes, side grooves, or blind side holes are often created around the product. These undercut structures are generally present on the product itself. Therefore, when using injection molds to produce plastic products, the undercuts need to be demolded before ejection. For molds used to mold products with side holes, side grooves, or blind side holes, side drive components are commonly used to drive side pull blocks to pull the mold out. However, sometimes, due to product design issues, certain structures may obstruct the side pull blocks, preventing radial movement. Furthermore, simultaneous operation of multiple drive components can lead to poor synchronization, affecting demolding.

[0003] In view of this, the applicant hereby submits this application after studying the existing technology. Utility Model Content

[0004] This invention provides a module shrinkage structure, which aims to improve at least one of the above-mentioned technical problems.

[0005] To solve the above technical problems, this utility model provides a module shrinking structure, including a shrinking module body disposed in a mold. The body includes a connecting slider, a guide slider, and two shrinking sliders. The guide slider is disposed above the product cavity, and the connecting slider is fixedly connected to the top of the guide slider to drive the guide slider to move longitudinally. The width of the guide slider gradually increases from bottom to top on both sides. The two shrinking sliders are symmetrically disposed on both sides of the guide slider. The side end of the guide slider protrudes to form a first guide portion, and the inner side surface of the shrinking slider is concave to form a first guide groove adapted to the first guide portion. The first guide portion and the first guide groove are slidably connected. The bottom of the outer side surface of the shrinking slider protrudes to form a flange, which is used to extend into the cavity to serve as a module for forming the product.

[0006] As a further optimization, the main body also includes a limiting platform, which is provided with a slot. Two end platforms are symmetrically arranged in the slot, and two inwardly retractable sliders are respectively slidably arranged above the two end platforms.

[0007] As a further optimization, limit blocks are provided on both sides of the end platform; a groove is provided on the side end of the inward sliding block, and the limiting end of the limit block extends into the groove.

[0008] As a further optimization, the other two sides of the guide slider protrude to form a second guide portion, which is arranged longitudinally; the inner sidewall of the slot is provided with a second guide groove that is adapted to slide and connect with the second guide portion.

[0009] As a further optimization, a limiting groove is provided on one side of the connecting slider and the guide slider, and the limiting groove is arranged longitudinally; it also includes a pull block, which has a protrusion extending into the limiting groove, and the protrusion is used to limit the guide slider in the longitudinal direction.

[0010] As a further optimization, the cross-section of the first guide portion is arranged in an isosceles trapezoidal shape, and the distance between its two sides gradually increases from the end closer to the guide slider to the other end.

[0011] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0012] This application provides a module retraction structure, including a retraction module body disposed within a mold. The body includes a connecting slider, a guide slider, and two retraction sliders. The guide slider is positioned above the product cavity, and the connecting slider is fixedly connected to the top of the guide slider. When the connecting slider drives the guide slider to move longitudinally and separate from the product, it simultaneously drives the retraction sliders to move towards the center, thereby causing the flange to disengage from the undercut groove of the product. This facilitates smooth demolding, reduces the use of lateral driving components, lowers costs, provides good synchronization, and results in a more compact overall structure. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a cross-sectional structural diagram of a module inward shrinkage structure according to this utility model;

[0015] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is a schematic diagram of the structure of the module's internal shrinkage structure body according to this utility model;

[0017] Figure 4 This is a partial structural diagram of the body of a module with a recessed structure according to the present invention;

[0018] The markings in the diagram are: 1. Body; 2. Lower mold stage; 3. Upper mold stage; 4. Stripper plate; 5. Connecting slider; 6. Guide slider; 7. Retracting slider; 8. Product; 9. First guide part; 10. First guide groove; 11. Flange; 12. Limiting stage; 13. Slot; 14. End stage; 15. Limiting block; 16. Groove; 17. Second guide part; 18. Second guide groove; 19. Limiting groove; 20. Pull block; 21. Protrusion. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Depend on Figures 1 to 4 As shown, this utility model embodiment provides a module shrinking structure, including a shrinking module body 1 disposed within a mold. The mold includes a lower mold platform 2, an upper mold platform 3, and a stripper plate 4 between them. These three components can be driven by a driving component, such as a telescopic cylinder (not shown in the figure), allowing them to move relative to each other in the longitudinal direction. This is prior art and will not be elaborated upon here. The shrinking module body 1 is mainly disposed within the lower mold platform 2 and includes a connecting slider 5, a guide slider 6, and two shrinking sliders 7. The guide slider 6 is disposed above the cavity of the product 8. The connecting slider 5 is fixedly connected to the top of the guide slider 6. In this embodiment, the upper end of the connecting slider 5 is fixed within the upper mold platform 3. When the upper mold platform 3 moves longitudinally, the connecting slider 5 can drive the guide slider 6 to move longitudinally. Further details are omitted here.

[0021] Preferably, the width of the guide slider 6 gradually increases from bottom to top on both sides; two inwardly recessed sliders 7 are symmetrically arranged on both sides of the guide slider 6, and the side end of the guide slider 6 protrudes to form a first guide portion 9. The inner side surface of the inwardly recessed slider 7 is recessed to form a first guide groove 10 that matches the first guide portion 9, and the first guide portion 9 and the first guide groove 10 are slidably connected; the bottom of the outer side surface of the inwardly recessed slider 7 protrudes to form a flange 11, which is used to extend into the cavity to serve as part of the module forming the product 8. When the connecting slider 5 drives the guide slider 6 to move vertically upward, since the side of the guide slider 6 is inclined, as it moves upward, guided by the first guide portion 9 and the first guide groove 10, the inwardly recessed sliders 7 on both sides gradually move closer to the middle, and then the flange 11 can move out of the groove of the product 8 and separate, and then the product 8 can be separated and demolded through the subsequent demolding step. In this way, the radial movement of the molding module is linked by the longitudinal drive for demolding, reducing the use of lateral drive components, reducing costs, and achieving good synchronization, with a more compact overall structure. It should be noted that in this embodiment, the bottom of the guide slider 6 is also provided with a shape structure for forming part of the product 8. Therefore, compared with the conventional side pull structure, the middle part is limited, which affects the operation of the side drive component. However, in this embodiment, by moving the guide slider 6 vertically upward at the same time, the flange 11 moves towards the middle, so that demolding can be carried out smoothly.

[0022] Preferably, in this embodiment, the cross-section of the first guide portion 9 is an isosceles trapezoid, and the distance between its two sides gradually increases from one end closer to the guide slider 6 to the other end. In this way, by restricting the two sides of the first guide portion 9, a stable relative sliding between the first guide portion 9 and the first slide groove can be achieved, without radial separation, thereby allowing the inwardly retracting slider 7 to move against the inclined surface of the guide slider 6.

[0023] The main body 1 also includes a limiting platform 12, which has a slot 13. Two end platforms 14 are symmetrically arranged within the slot 13, and two retractable sliders 7 are slidably disposed above the two end platforms 14. In this embodiment, the limiting platform 12 is fixedly disposed within the lower mold base 2, and the retractable sliders 7 are supported by the end platforms 14. At the same time, the upper limit of the retractable sliders 7 in the radial direction is located between the two sides of the slot 13, thereby limiting the bottom height of the guide sliders 6 so that they do not extend too far into the cavity.

[0024] Furthermore, limit blocks 15 are provided on both sides of the end plate 14. The limit blocks 15 are fixed by bolts or limited by the groove wall. The side end of the inward sliding block 7 is provided with a groove 16, and the limiting end of the limit block 15 extends into the groove 16. This can prevent the inward sliding block 7 from moving too far towards the center.

[0025] Preferably, the other two sides of the guide slider 6 have protruding second guide portions 17, which are arranged longitudinally; the inner sidewall of the slot 13 is provided with a second guide groove 18 that is adapted to and slidably connected to the second guide portion 17. By sliding and guiding the longitudinally arranged second guide portion 17 and the second guide groove 18, the stability of the guide slider 6 when moving longitudinally can be enhanced.

[0026] Preferably, a limiting groove 19 is provided on one side of the connecting slider 5 and the guide slider 6, and the limiting groove 19 is arranged longitudinally; it also includes a pull block 20, which has a protruding protrusion 21 that extends into the limiting groove 19. The protrusion 21 is used to limit the guide slider 6 in the longitudinal direction. In this embodiment, the pull block 20 is fixed to the lower end of the stripper plate 4 by a bolt. When not demolded, there is a gap between the protrusion 21 and the bottom of the limiting groove 19. The pull block 20 with different gaps can limit the longitudinal movement distance of the guide slider 6, which can prevent the guide slider 6 and the retracting slider 7 from separating and affecting subsequent reset. In other embodiments, the pull block 20 can also be provided on the lower mold plate 2, which will not be described in detail here.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A modular retraction structure comprising a retraction module body disposed within a mold, wherein, The body comprises a connecting slider, a guide slider and two inward sliders, the guide slider is arranged above the product cavity, the connecting slider is fixedly connected to the top end of the guide slider and used to drive the guide slider to move in the longitudinal direction, the width of the two sides of the guide slider gradually increases from bottom to top, the two inward sliders are symmetrically arranged on the two sides of the guide slider, the side end of the guide slider protrudes to form a first guide part, the inner side of the inward slider is concave to form a first guide groove matched with the first guide part, and the first guide part and the first guide groove are in sliding connection, the bottom of the outer side of the inward slider protrudes to form a flange, and the flange is used to extend into the cavity to serve as a module for forming a product.

2. A module retraction structure according to claim 1, characterized in that The body further comprises a limiting table, the limiting table is provided with a slot, two end tables are symmetrically arranged in the slot, and the two inward sliders are respectively arranged above the two end tables.

3. A module retraction structure according to claim 2, wherein The two sides of the end table are provided with limiting blocks, the side end of the inward slider is provided with a groove, and the limiting end of the limiting block extends into the groove.

4. The module retraction structure of claim 2, wherein The other two sides of the guide slider protrude to form a second guide part, the second guide part is arranged in the longitudinal direction, and the inner side wall of the slot is provided with a second guide groove matched with the second guide part in sliding connection.

5. The modular retraction structure of claim 1, wherein The side end of the connecting slider and the guide slider is in communication with a limiting groove, the limiting groove is arranged in the longitudinal direction, a pull block is further included, the pull block protrudes to form a protruding block extending into the limiting groove, and the protruding block is used to limit the guide slider in the longitudinal direction.

6. The modular retraction structure of claim 1, wherein The cross section of the first guide part is arranged in the shape of an isosceles trapezoid, and the distance between the two sides gradually increases from one end close to the guide slider to the other end.

Images