Bidirectional two-section type sliding block structure and mold

By linking the inclined slider and sliding seat assembly of the bidirectional two-stage slider structure, the problem of product bone interference in the injection mold is solved, and the smooth demolding and compact structure of the injection molded product are achieved.

CN223998896UActive Publication Date: 2026-03-17ZHONGSHAN JIRUI PRECISION MOLD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-20
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

During the demolding process, existing injection molds cannot be successfully demolded because the product's ribs are embedded in the slider molding groove, causing interference. This is especially problematic when space is limited, as normal slider and angled ejector structures cannot be used.

Method used

The system adopts a two-way, two-stage slider structure. Through the front and rear linkage of the inclined slider and the sliding seat assembly, the driving component drives the slider seat assembly to slide, so that the inclined slider moves from the molding position to the release position. The linkage component drives the protrusion to disengage from the locking position, thus realizing the smooth demolding of the injection molded product.

Benefits of technology

It enables smooth demolding of injection molded products, avoids interference, and has a compact structure that does not require additional driving components, making the overall structure more compact.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a two-way two-section type sliding block structure which comprises a base and a sliding block, the sliding seat assembly is connected to the base, and the sliding seat assembly is provided with a first supporting part and a plurality of protruding parts; each inclined sliding block is connected into the sliding seat assembly in a sliding manner, and each inclined sliding block is provided with a forming part which can be matched with the corresponding protruding part to form a buckling position of the injection molding product; an output shaft of the driving part is connected with a sliding block seat assembly capable of moving along with the output shaft, and the sliding block seat assembly can push the multiple inclined sliding blocks to move from the disengaging position to the forming position or move from the forming position to the disengaging position; and the linkage assembly is arranged between the pushing assembly and the sliding seat assembly, and the linkage assembly can drive the sliding seat assembly to slide so that the protruding part can be separated from the buckling position of the injection product. The utility model further provides a die which comprises the bidirectional two-section type sliding block structure. The utility model provides the bidirectional two-section type sliding block structure which is convenient to demould. The utility model further provides a die.
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Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a bidirectional two-stage slider structure. Background Technology

[0002] In existing injection molds, the demolding process is significantly affected by the ribs of the injection molded product (e.g., Figure 9 and Figure 10 As shown, there is bone interference at the product's snap-fit ​​point. Furthermore, due to limited space, a normal slider and angled ejector structure cannot be used. During molding, the product's bone is embedded in the slider's molding groove, causing interference during demolding and preventing the injection-molded product from being successfully demolded. Utility Model Content

[0003] The purpose of this invention is to overcome the problems of the prior art and provide a bidirectional two-stage slider structure that facilitates demolding.

[0004] This utility model also provides a mold.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] The first aspect of this utility model provides a bidirectional two-stage slider structure, comprising:

[0007] Base;

[0008] A sliding seat assembly connected to a base, the sliding seat assembly having a first support portion for contacting the injection-molded product, and the sliding seat assembly also having a plurality of protrusions;

[0009] Multiple inclined sliders are slidably connected within a sliding seat assembly, and each inclined slider is also provided with a molding part that can cooperate with the protrusion to form a snap-fit ​​on the injection molded product.

[0010] The drive unit has a slider seat assembly connected to its output shaft that can follow its movement. The slider seat assembly can push multiple inclined sliders to move from the disengagement position to the molding position or from the molding position to the disengagement position. When the inclined slider is in the molding position, the molding part can cooperate with the protrusion to form a snap-fit ​​position for the injection molded product. When the inclined slider moves from the molding part to the disengagement position, the molding part gradually disengages from the snap-fit ​​position of the injection molded product.

[0011] A linkage component is disposed between the push component and the sliding seat component. When the sliding seat component moves to a preset position, the linkage component can drive the sliding seat component to slide, thereby causing the protrusion to disengage from the injection molded product.

[0012] The slider seat assembly includes a slider seat slidably connected to the slider seat assembly. The slider seat is provided with a plurality of slider inserts that can slide within the slider seat assembly. The inclined slider is provided with a first inclined sliding surface. The slider insert is provided with a second inclined sliding surface that can push against the first inclined sliding surface, causing the inclined slider to move from the disengagement position to the forming position.

[0013] The sliding seat assembly is provided with a first sliding groove in which the inclined slider can slide. The groove wall of the first sliding groove is provided with a first abutting surface that can abut against the inclined slider so that the inclined slider is positioned at the forming position.

[0014] The slider insert is provided with a T-shaped slide rail, and the inclined slider is provided with a groove that can accommodate the slide rail and allow the slide rail to slide within it.

[0015] The sliding seat assembly includes a sliding seat slidably connected to the base, a first slider that can slide with the front end of the sliding seat, a plurality of protrusions that are provided on the first slider, a first sliding groove that is provided between the sliding seat and the first slider, and a second sliding groove that allows the slider insert to slide within the sliding seat.

[0016] The sliding seat is provided with a sliding space for the slider seat to slide, and the sliding seat has a stop block that extends into the sliding space to prevent the slider seat from disengaging from above the sliding space.

[0017] The linkage component includes multiple grooves on the sliding seat, one end of each groove has a second abutment surface, and the slider seat has multiple protrusions protruding downward into the grooves. After sliding a certain distance in the grooves, the protrusions can abut against the second abutment surface, thereby driving the sliding seat to slide.

[0018] The first support portion includes support steps disposed on a plurality of first sliders.

[0019] The slider seat is connected to a sliding rod that can slide with it. The drive member has a push-up component on one side that can abut against the sliding rod to prevent the sliding rod from moving further. The push-up component includes a first push block and a second push block connected to one side of the drive member. The first push block and the second push block are spaced apart to form a moving space in which the sliding rod can slide. The first push block and the second push block are also provided with protrusions that protrude into the moving space.

[0020] The second aspect of this utility model provides a mold, comprising: the bidirectional two-stage slider structure as described above.

[0021] Compared with existing technologies, this invention has the following advantages: After the injection-molded product is formed, the drive unit is activated. Upon activation, the drive unit drives the slider seat assembly to slide backward, causing multiple inclined sliders to gradually move from the forming position to the disengagement position. The formed parts on the multiple inclined sliders gradually disengage from the snap-fit ​​positions on the injection-molded product. During the movement of the inclined sliders from the forming position to the disengagement position, the linkage component is activated, causing multiple protrusions to disengage from the snap-fit ​​positions. Simultaneously, the first support part disengages from the rib of the injection-molded product. Due to the yielding of the multiple inclined sliders, the rib of the injection-molded product can disengage smoothly without interference. Furthermore, the use of a front-to-back linkage between the inclined sliders and the sliding seat assembly eliminates the need for a new drive unit for the sliding seat assembly, resulting in a more compact overall structure. The drive unit is a drive motor. Attached Figure Description

[0022] Figure 1 This is one of the structural schematic diagrams of the bidirectional two-stage slider structure of this utility model;

[0023] Figure 2 This is the second structural schematic diagram of the bidirectional two-stage slider structure of this utility model;

[0024] Figure 3 This is a cross-sectional view of the bidirectional two-section slider structure of this utility model;

[0025] Figure 4 This is a cross-sectional view of the inclined slider of the bidirectional two-stage slider structure of this utility model moving from the forming position toward the disengaging position.

[0026] Figure 5 This is a cross-sectional view of the inclined slider of the bidirectional two-stage slider structure of this utility model moving to the disengaged position;

[0027] Figure 6 This is a schematic diagram of the inclined slider of the bidirectional two-stage slider structure of this utility model;

[0028] Figure 7 This is a cross-sectional view of the linkage component of the bidirectional two-stage slider structure of this utility model;

[0029] Figure 8 This is a schematic diagram of the first slider of the bidirectional two-stage slider structure of this utility model;

[0030] Figure 9 for Figure 8 Enlarged view of region B in the middle;

[0031] Figure 10 This is a schematic diagram of the original first slider.

[0032] Figure 11 for Figure 10 A magnified view of region C in the middle. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to embodiments:

[0034] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0035] like Figures 1 to 9 As shown, the first aspect of this utility model provides a bidirectional two-stage slider structure, including: a base 1; a sliding seat assembly 2 connected to the base 1, the sliding seat assembly 2 being provided with a first support portion 21 for contacting the injection-molded product a, and the sliding seat assembly 2 also being provided with a plurality of protrusions 22; a plurality of inclined sliders 3, each of the inclined sliders 3 being slidably connected within the sliding seat assembly 2, and each of the inclined sliders 3 being provided with a forming portion 31 capable of cooperating with the protrusions 22 to form a locking position a2 of the injection-molded product; and a driving member 4, the output shaft of which is connected to a slider seat assembly 5 capable of following its movement. Component 5 can push multiple inclined sliders 3 from the disengagement position to the molding position or from the molding position to the disengagement position. When the inclined sliders 3 are in the molding position, the molding part 31 can cooperate with the protrusion 22 to form a snap-fit ​​position for the injection molded product. When the inclined sliders 3 move from the molding part 31 to the disengagement position, the molding part 31 gradually disengages from the snap-fit ​​position for the injection molded product. Linkage component 6 is disposed between the pushing component and the sliding seat component 2. When the sliding seat component 2 moves to a preset position, the linkage component 6 can drive the sliding seat component 2 to slide, causing the protrusion 22 to disengage from the snap-fit ​​position for the injection molded product.

[0036] After the injection-molded product is formed, the drive unit 4 is activated. Upon activation, the drive unit 4 drives the slider assembly 5 to slide backward, causing multiple inclined sliders 3 to gradually move from the forming position to the release position. The forming parts 31 on the multiple inclined sliders 3 gradually disengage from the snap-fit ​​position a2 of the injection-molded product. During the movement of the inclined sliders 3 from the forming position to the release position, the linkage assembly 6 is activated, causing multiple protrusions 22 to disengage from the snap-fit ​​position. Simultaneously, the first support part 21 disengages from the rib position a1 of the injection-molded product. Due to the repositioning of the multiple inclined sliders 3, the rib position of the injection-molded product can disengage smoothly without interference. Furthermore, the front-to-back linkage of the inclined sliders 3 and the sliding seat assembly 2 eliminates the need for a new drive unit for the sliding seat assembly 2, resulting in a more compact overall structure. The drive unit 4 is a drive motor.

[0037] The slider seat assembly 5 includes a slider seat 51 slidably connected to the slider seat assembly 2. The slider seat 51 is provided with a plurality of slider inserts 52 that can slide within the slider seat assembly 2. The inclined slider 3 is provided with a first inclined sliding surface 32. The slider insert 52 is provided with a second inclined sliding surface 521 that can push against the first inclined sliding surface 32, causing the inclined slider 3 to move from the disengagement position to the molding position. When the slider insert 52 moves toward the slider seat assembly 2, the second inclined sliding surface 521 can push against the first inclined sliding surface 32, causing the inclined slider 3 to be in the molding position. When the injection molded product needs to be demolded, the drive component 4 drives the slider seat 51 and the slider insert 52 to slide backward, allowing the second inclined sliding surface 521 to make way for the first inclined sliding surface 32. At this time, the inclined slider 3 can disengage from the locking position.

[0038] The sliding seat assembly 2 is provided with a first sliding groove 23 in which the inclined slider 3 can slide. The groove wall of the first sliding groove 23 is provided with a first abutting surface 231 that abuts against the inclined slider 3 to position the inclined slider 3 in the forming position. The first sliding groove 23 is used to position the inclined slider 3 in the direction of sliding, and the first abutting surface 231 is provided to position the distance the inclined slider 3 moves, so that the inclined slider 3 can be accurately positioned in the forming position.

[0039] The slider insert 52 is provided with a T-shaped slide rail portion 522, and the inclined slider 3 is provided with a slide groove 33 that can accommodate the slide rail portion 522 and allow the slide rail portion 522 to slide within it. The slide rail portion 522 and the slide groove 33 cooperate to facilitate the precise matching of the slider insert 52 and the inclined slider 3.

[0040] The sliding seat assembly 2 includes a sliding seat 24 slidably connected to the base 1. The front end of the sliding seat 24 is provided with a first slider 25 that can slide along with it. Multiple protrusions 22 are provided on the first slider 25, and a first sliding groove 23 is provided between the sliding seat 24 and the first slider 25. The sliding seat 24 is also provided with a second sliding groove 241 that allows the slider insert 52 to slide within it. The second sliding groove 241 facilitates guiding the direction of movement of the slider insert 52. The sliding seat 24 can slide relative to the base 1, causing the protrusions 22 to disengage from their latching positions.

[0041] The sliding seat 24 is provided with a sliding space 242 for the slider seat 51 to slide. The sliding seat 24 has a stop block 243 that extends into the sliding space 242 to prevent the slider seat 51 from disengaging from above the sliding space 242. The sliding space 242 and the stop block 243 cooperate to limit the direction of movement of the slider seat 51 and guide the slider seat 51 to slide relative to the sliding seat 24.

[0042] The linkage component 6 includes multiple grooves 61 disposed on the sliding seat 24. One end of each groove 61 is provided with a second abutment surface 611. The slider seat 51 is provided with multiple protrusions 62 protruding downward into the grooves 61. After sliding a certain distance in the grooves 61, the protrusions 62 can abut against the second abutment surface 611, thereby driving the sliding seat 24 to slide. When the slider seat 51 slides a certain distance, the protrusions 62 move a corresponding distance in the grooves 61 and gradually contact and abut against the second abutment surface 611. At this time, the sliding seat 24 is driven by the protrusions 62 to achieve linkage, and the sliding seat 24 drives the first slider 25 to slide, thereby causing the protrusion 22 to disengage from the latch.

[0043] The first support portion 21 includes support steps 211 disposed on a plurality of first sliders 25, which facilitates the setting of the ribs of the injection molded product.

[0044] The slider seat 51 is connected to a sliding rod 7 that can slide with it. The driving member 4 has a support assembly 8 on one side that abuts against the sliding rod 7 to prevent it from moving further. The support assembly 8 includes a first top block 81 and a second top block 82 connected to one side of the driving member 4. The first top block 81 and the second top block 82 are spaced apart to form a sliding space 83 within which the sliding rod 7 can slide. The first top block 81 and the second top block 82 also have protrusions 84 extending into the sliding space 83. The protrusions 84 abut against the sliding rod 7, causing the sliding rod 7 to abut against the first top block 81 or the second top block 82. The sliding space 83 limits the distance the sliding rod 7 can move, thereby limiting the distance the slider seat 51 can move. It is conceivable that the first top block 81 and the second top block 82 are electromagnets, and the protrusion 84 is a magnetic abutment, which can more stably position the sliding rod 7.

[0045] The second aspect of this utility model provides a mold, including: the bidirectional two-stage slider structure 9 as described above. After the injection-molded product is formed, the drive component 4 is activated. The drive component 4 drives the slider seat assembly 5 to slide backward, thereby causing multiple inclined sliders 3 to gradually move from the forming position to the disengagement position. The forming parts 31 on the multiple inclined sliders 3 gradually disengage from the snap-fit ​​position of the injection-molded product. During the movement of the inclined sliders 3 from the forming position to the disengagement position, the linkage component 6 is activated, causing multiple protrusions 22 to disengage from the snap-fit ​​position. Simultaneously, the first support part 21 disengages from the rib of the injection-molded product. Due to the repositioning of the multiple inclined sliders 3, the rib of the injection-molded product can disengage smoothly without interference. Moreover, by using the front-to-back linkage of the inclined sliders 3 and the sliding seat assembly 2, there is no need to equip the sliding seat assembly 2 with a new drive component, making the overall structure more compact. The drive component 4 is a drive motor.

[0046] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A bidirectional two-stage slider structure, characterized in that, The utility model relates to a kind of injection moulding product positioning device, including: Base (1); Sliding seat assembly (2) is connected to base (1), the first support part (21) for being used to contact with injection moulding product is provided in the sliding seat assembly (2), the sliding seat assembly (2) is further provided with multiple convex parts (22); Multiple inclined sliding blocks (3), each the inclined sliding block (3) is slidably connected in sliding seat assembly (2), each the inclined sliding block (3) is further provided with the forming part (31) that can cooperate with convex part (22) and form injection moulding product buckle; Driving member (4), the output shaft of which is connected with the slider block seat assembly (5) that can follow its activity, the slider block seat assembly (5) can push multiple inclined sliding blocks (3) from disengaging position to forming position or from forming position to disengaging position, when the inclined sliding block (3) is in forming position, forming part (31) can cooperate with convex part (22) and form injection moulding product buckle, and when the inclined sliding block (3) is moved from forming part (31) to disengaging position, the forming part (31) gradually disengages from injection moulding product buckle; Linkage assembly (6) is provided between pushing assembly and sliding seat assembly (2), and when the sliding seat assembly (2) moves to preset position, the linkage assembly (6) can drive sliding seat assembly (2) to slide so that convex part (22) disengages from injection moulding product buckle.

2. The bidirectional two-stage slider structure according to claim 1, wherein, The slider block seat assembly (5) includes slider block seat (51) slidably connected to sliding seat assembly (2), the slider block seat (51) is provided with multiple slider block inserts (52) that can slide in sliding seat assembly (2), the inclined sliding block (3) is provided with first inclined sliding surface (32), the slider block insert (52) is provided with second inclined sliding surface (521) that can push first inclined sliding surface (32) so that inclined sliding block (3) moves from disengaging position to forming position.

3. The bidirectional two-stage slider structure according to claim 2, wherein, The sliding seat assembly (2) is provided with first sliding groove (23) that can slide in the inclined sliding block (3), and the groove wall of the first sliding groove (23) is provided with first abutting surface (231) that can abut against the inclined sliding block (3) so that the inclined sliding block (3) is positioned in forming position.

4. The bidirectional two-stage slider structure according to claim 3, wherein, The slider block insert (52) is provided with T-shaped slide rail part (522), and the inclined sliding block (3) is provided with sliding groove (33) that can accommodate slide rail part (522) and can slide in the slide rail part (522).

5. The bidirectional two-stage slider structure according to claim 3, wherein, The sliding seat assembly (2) includes sliding seat (24) slidably connected to base (1), the front end of the sliding seat (24) is provided with first slider (25) that can slide along it, multiple convex parts (22) are provided on the first slider (25), and the first sliding groove (23) is provided between the sliding seat (24) and the first slider (25), and the sliding seat (24) is further provided with second sliding groove (241) that can slide in the slider block insert (52).

6. The bidirectional two-stage slider structure according to claim 5, wherein, The sliding seat (24) is provided with a sliding space (242) for the sliding block seat (51) to slide, and the sliding seat (24) is provided with a stop block (243) extending to the sliding space (242) to prevent the sliding block seat (51) from being separated from the sliding space (242).

7. The bidirectional two-stage slider structure according to claim 6, wherein, The linkage assembly (6) comprises a plurality of grooves (61) provided on the sliding seat (24), one end of the groove (61) is provided with a second abutting surface (611), and the sliding block seat (51) is provided with a plurality of protrusions (62) protruding downward into the groove (61), and the protrusion (62) can abut against the second abutting surface (611) after sliding in the groove (61) for a distance, thereby driving the sliding seat (24) to slide.

8. The bidirectional two-stage slider structure according to claim 1, wherein, The first support part (21) comprises a support step (211) provided on a plurality of first sliding blocks (25).

9. The bidirectional two-stage slider structure according to claim 1, wherein, The sliding block seat (51) is connected with a sliding rod (7) capable of sliding therewith, one side of the driving member (4) is provided with an abutting assembly (8) capable of abutting against the sliding rod (7) to prevent the sliding rod (7) from continuing to move, the abutting assembly (8) comprises a first abutting block (81) and a second abutting block (82) connected to one side of the driving member (4), the first abutting block (81) and the second abutting block (82) are arranged at intervals to form a movement space (83) capable of sliding the sliding rod (7) therein, and the first abutting block (81) and the second abutting block (82) are further provided with protrusions (84) protruding into the movement space (83).

10. A mold characterized in that, Comprise: The bidirectional two-stage sliding block structure (9) according to any one of claims 1 to 9.