Sliding block anti-retreating mechanism driven by oil cylinder

Abstract

The utility model relates to a sliding block anti-retreating mechanism driven by an oil cylinder. The sliding block anti-retreating mechanism comprises an upper sliding block and a lower sliding block. A first inclined surface and a first plane are arranged on the lower surface of the upper sliding block; the upper surface of the lower sliding block is provided with a second plane and a second slope. The upper sliding block and the lower sliding block are in matched sliding connection through a sliding structure. A first anti-retreating platform is arranged on the first inclined surface; a second anti-retreating platform is arranged on the second inclined surface; the sliding block anti-retreating mechanism is simple in structure and ingenious in design, surface contact compression is formed through the first plane and the second anti-retreating platform as well as the second plane and the first anti-retreating platform during mold closing, upper and lower mechanical interlocking is formed to directly limit retreating of the lower sliding block, and due to the structural design, the anti-retreating effect does not depend on long-time inclined plane mechanical friction; and the anti-retreating effect is not obviously reduced even if the anti-retreating device is used for a long time, and the abrasion is small, so that the retreating of the lower sliding block can be effectively limited during mold closing.

Description

Technical Field

[0001] This utility model relates to the technical field of injection molds, and more specifically, to a hydraulically driven slider anti-reverse mechanism. Background Technology

[0002] In traditional injection molds, the hydraulically driven slide mechanism often causes the slide to retract due to injection pressure. Therefore, existing technologies mostly use anti-reverse ramps on the slide to prevent it from retracting during injection. However, since the anti-reverse ramps prevent slide retraction by generating inclined friction, these contact friction surfaces may wear or be damaged after prolonged use, leading to a decrease in the anti-retraction effect. Furthermore, repairing worn surfaces is complex, increasing maintenance costs and time. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a hydraulically driven slider anti-reverse mechanism to address the above-mentioned deficiencies of the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a hydraulically driven slider anti-retraction mechanism, comprising an upper slider and a lower slider, and a driving component for driving the lower slider laterally closer to or further away from the upper slider; the lower surface of the upper slider is provided with a first inclined surface and a first flat surface; the upper surface of the lower slider is provided with a second flat surface and a second inclined surface adapted to and slidably connected with the first inclined surface; the lower surface of the upper slider is also provided with a sliding connector protruding towards the lower slider; the upper surface of the lower slider is provided with a first sliding groove through its length direction, which slidably connects with the sliding connector; the extension direction of the first sliding groove is parallel to the second inclined surface; a first anti-retraction platform is provided on the first inclined surface; a second anti-retraction platform is provided on the second inclined surface;

[0005] During mold closing, the first plane and the second anti-retraction platform are pressed together, and the first anti-retraction platform and the second plane are pressed together to jointly restrict the backward movement of the lower slide block;

[0006] The driving component drives the lower slider to retract until the first plane and the second anti-retraction platform are misaligned, and the second plane and the first anti-retraction platform are misaligned. Then, the upper slider moves out along the first slide groove and separates from the lower slider, completing the demolding.

[0007] The slider anti-retraction mechanism of this utility model includes a first anti-retraction platform that divides the first inclined surface into a first sub-inclined surface and a second sub-inclined surface with a height difference; and a second anti-retraction platform that divides the second inclined surface into a third sub-inclined surface and a fourth sub-inclined surface with a height difference.

[0008] In the slider anti-reverse mechanism of this utility model, the height difference between the first sub-inclined surface and the second sub-inclined surface and the height difference between the third sub-inclined surface and the fourth sub-inclined surface are the same;

[0009] In the slider anti-reverse mechanism of this utility model, the length of the first sub-inclined surface is the same as the length of the third sub-inclined surface;

[0010] In the slider anti-reverse mechanism of this utility model, the length of the second sub-inclined surface is the same as the length of the fourth sub-inclined surface;

[0011] In the slider anti-retraction mechanism of this utility model, the lower surface of the sliding connector is parallel to the first inclined surface;

[0012] The slider anti-retreat mechanism of this utility model includes a sliding connector comprising a vertical connecting portion extending from the lower end of the upper slider toward the lower slider, and a transverse sliding portion extending laterally from the end of the vertical connecting portion away from the upper slider.

[0013] The slider anti-reverse mechanism of this utility model includes a first sub-groove that is adapted to the outer contour of the vertical connecting part, and a second sub-groove that is directly connected to the first sub-groove and slides in cooperation with the transverse sliding part.

[0014] In the slider anti-reverse mechanism of this utility model, the height of the second sub-groove is greater than the height of the transverse sliding part; the height difference between the second sub-groove and the transverse sliding part is equal to the height difference between the first sub-inclined surface and the second sub-inclined surface, or equal to the height difference between the third sub-inclined surface and the fourth sub-inclined surface;

[0015] The slider anti-retreat mechanism of this utility model includes at least one vertically upward-arranged forming rod on the upper slider.

[0016] The slider anti-retraction mechanism of this utility model includes an upper surface of the upper slider having at least one second groove for the forming rod to slide through; the forming rod is slidably connected to the upper slider through the second groove.

[0017] The slider anti-reverse mechanism of this utility model includes a second groove extending along the width direction of the upper surface of the upper slider and a first groove extending along the length direction of the lower surface of the lower slider.

[0018] The beneficial effects of this utility model are as follows: the slider anti-retraction mechanism has a simple structure and ingenious design. By setting a first anti-retraction platform on the first inclined surface of the upper slider and a second anti-retraction platform on the second inclined surface of the lower slider, when the mold is closed, the first plane and the second anti-retraction platform, as well as the second plane and the first anti-retraction platform, form a surface contact and press together, forming a mechanical interlock between the upper and lower parts to directly restrict the backward movement of the lower slider. This structural design makes the anti-retraction effect not dependent on long-term mechanical friction, but on the pressing cooperation between the anti-retraction platform and the plane. Therefore, even after long-term use, the anti-retraction effect will not decrease significantly, and this rigid contact can significantly reduce sliding friction and reduce the risk of wear, so that the backward movement of the lower slider can be effectively restricted when the mold is closed. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a cylinder-driven slider anti-reverse mechanism according to a preferred embodiment of the present invention;

[0021] Figure 2 This is a right-hand view of a preferred embodiment of the present invention: a cylinder-driven slider anti-reverse mechanism.

[0022] Figure 3 yes Figure 3 Sectional view of AA;

[0023] Figure 4 yes Figure 3 Sectional view of BB;

[0024] Figure 5 yes Figure 1 A partial exploded perspective view of a hydraulic cylinder-driven slider anti-reverse mechanism. Detailed Implementation

[0025] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] "Multiple" refers to 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.

[0028] Furthermore, the terms indicating orientation, such as "up, down, front, back, left, right, upper end, lower end, longitudinal," etc., are all based on the posture and position of the device or equipment described in this solution during normal use.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0030] A preferred embodiment of this utility model provides a cylinder-driven slider anti-reverse mechanism, such as... Figure 1-5 As shown, the device includes an upper slider 10 and a lower slider 20, and a drive assembly 30 that moves the lower slider 20 laterally closer to or further away from the upper slider 10. In this embodiment, the drive assembly 30 is a hydraulic cylinder or a telescopic cylinder in the prior art. The lower surface of the upper slider 10 is provided with a first inclined surface 11 and a first flat surface 12. The upper surface of the lower slider 20 is provided with a second flat surface 21 and a second inclined surface 22 that is adapted to and slidably connected to the first inclined surface 11. The upper slider and the lower slider can be slidably connected by a sliding structure. This sliding structure includes a sliding connector 13 provided on the lower surface of the upper slider 10 and protruding towards the lower slider 20, and a first groove 23 provided on the upper surface of the lower slider 20 and extending through it along its length direction, which is slidably connected to the sliding connector 13. The extension direction of the first groove 23 is parallel to the second inclined surface 22, which can ensure that the movement path of the lower slider is consistent with the direction of the inclined surface, reduce lateral offset or jamming, and reduce abnormal wear. A first anti-reverse platform 14 is provided on the first inclined surface 11, and a second anti-reverse platform 24 is provided on the second inclined surface 22.

[0031] During mold closing, the first plane 12 and the second anti-retraction platform 24 are pressed together, and the first anti-retraction platform 14 and the second plane 21 are pressed together, together restricting the slide block 20 from moving backward;

[0032] The drive assembly 30 drives the lower slider 20 to retract until the first plane 12 is misaligned with the second anti-retraction platform 24 and the second plane 21 is misaligned with the first anti-retraction platform 14. Then, the upper slider 10 moves out along the first groove and separates from the lower slider 20, completing the demolding. This design allows demolding to be completed without compromising the anti-retraction effect, further reducing the dependence on the friction slope and reducing wear.

[0033] This slider anti-reverse mechanism has a simple structure and ingenious design. It sets a first anti-reverse platform on the first inclined surface of the upper slider and a second anti-reverse platform on the second inclined surface of the lower slider. When the mold is closed, the first plane and the second anti-reverse platform, as well as the second plane and the first anti-reverse platform, form a surface contact and press together, creating a mechanical interlock between the upper and lower parts that directly restricts the backward movement of the lower slider. This structural design makes the anti-reverse effect not dependent on long-term mechanical friction, but on the pressing fit between the anti-reverse platform and the plane. Therefore, even after long-term use, the anti-reverse effect will not decrease significantly. Moreover, this rigid contact can significantly reduce sliding friction and reduce the risk of wear, thus effectively restricting the backward movement of the lower slider when the mold is closed.

[0034] Furthermore, the first anti-retraction platform 14 divides the first inclined plane 11 into a first sub-inclined plane 111 and a second sub-inclined plane 112 with a height difference; the second anti-retraction platform 24 divides the second inclined plane 22 into a third sub-inclined plane 221 and a fourth sub-inclined plane 222 with a height difference. By dividing the inclined planes, the upper slider can press and lock the lower slider step by step during the mold closing process. This not only provides different locking forces at different mold closing stages, which helps to improve the stability and accuracy of mold closing, but also provides a certain safety buffer when the mold closing is incomplete, avoiding equipment damage or safety accidents caused by sudden failure of the slider. Moreover, the first and second inclined planes with a height difference can provide more precise matching, which helps to achieve a tighter connection during mold closing, thereby improving the manufacturing accuracy of the product.

[0035] Furthermore, the height difference between the first sub-sloping surface 111 and the second sub-sloping surface 112 is the same as the height difference between the third sub-sloping surface 221 and the fourth sub-sloping surface 222; the length of the first sub-sloping surface 111 is the same as the length of the third sub-sloping surface 221; the length of the second sub-sloping surface 112 is the same as the length of the fourth sub-sloping surface 222; this enables the first platform and the second platform to simultaneously press and lock against the second anti-recoil platform and the first anti-recoil platform, respectively, when the upper slider and the lower slider are closed.

[0036] Furthermore, the lower surface of the sliding connector 13 is parallel to the first inclined surface 11; when the slider moves, it ensures that the pressure between the sliding connector and the first groove is evenly distributed. This helps reduce localized wear and extend the service life of the component.

[0037] In one embodiment, the sliding connector 13 includes a vertical connecting portion 131 extending from the lower end of the upper slider 10 towards the lower slider 20, and a transverse sliding portion 132 extending laterally from the end of the vertical connecting portion 131 away from the upper slider 10. The vertical connecting portion 131 can effectively connect the upper slider 10 and the lower slider 20, providing vertical support and enhancing the stability of the overall structure. The design of the transverse sliding portion 132 allows the sliding connector to slide in the horizontal direction, while the vertical connecting portion remains fixed in the vertical direction. This can control the movement direction of the slider and prevent unnecessary tilting or offset. The transverse sliding portion can also restrict the sliding connector 13 from disengaging from the lower slider in the direction of the first groove.

[0038] Alternatively, the cross-section of the sliding connector 13 can be an inverted T-shaped structure or an L-shaped structure.

[0039] Furthermore, the first groove 23 includes a first sub-groove 231 adapted to the outer contour of the vertical connecting portion 131, and a second sub-groove 232 directly communicating with the first sub-groove 231 and sliding in cooperation with the transverse sliding portion 132; the first sub-groove 231 adapts to the outer contour of the vertical connecting portion 131, which can ensure the precise guidance of the sliding connector 13 in the vertical direction and prevent it from deviating during movement. The cross-section of the first groove 23 may be an inverted T-shaped structure, or an L-shaped structure adapted to the L-shaped sliding connector 13.

[0040] The movement of the sliding connector is decomposed into two directions, vertical and horizontal, which can reduce wear caused by complex movement paths and extend the service life of the groove and the sliding connector.

[0041] Alternatively, the height of the second sub-groove 232 is greater than the height of the lateral sliding portion 132, and the height difference between the second sub-groove 232 and the lateral sliding portion 132 is equal to the height difference between the first sub-slope 111 and the second sub-slope 112, or equal to the height difference between the third sub-slope 221 and the fourth sub-slope 222. This height difference ensures that there is a certain locking force between the sliders even when the lateral sliding portion 132 has not fully entered the second sub-groove 232, which helps prevent the sliders from retracting during injection molding. In case of accidental failure of the hydraulic cylinder, the height difference can also provide additional cushioning to prevent the sliders from suddenly retracting, increasing operational safety.

[0042] Furthermore, the upper slider 10 is provided with at least one vertically upward-mounted forming rod 40, which can help the upper slider 10 complete more complex forming operations, such as the mandrel extraction or insertion action in injection molding, thereby improving the applicability of the equipment; optionally, the forming rod 40 can be fixedly connected to the upper slider 10 or movably connected to it.

[0043] In one embodiment, the upper surface of the upper slider 10 is provided with at least one second groove 15 for the forming rod 40 to slide; the forming rod 40 is slidably connected to the upper slider 10 through the second groove 15; the replacement and maintenance of the forming rod is more convenient and does not require a complicated disassembly process.

[0044] Furthermore, the second slide 15 extends along the width direction of the upper surface of the upper slide block 10; the first slide 23 extends along the length direction of the lower surface of the lower slide block 20; the extension direction of the second slide 15 is different from the extension direction of the first slide 23; the movement of the two will not interfere with each other.

[0045] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A hydraulically driven slider anti-reverse mechanism, characterized in that, The device includes an upper slider and a lower slider, and a drive assembly that moves the lower slider laterally closer to or further away from the upper slider. The lower surface of the upper slider has a first inclined surface and a first flat surface. The upper surface of the lower slider has a second flat surface and a second inclined surface adapted to and slidably connected to the first inclined surface. The lower surface of the upper slider also has a sliding connector protruding towards the lower slider. The upper surface of the lower slider has a first groove extending along its length, slidably connected to the sliding connector. The extension direction of the first groove is parallel to the second inclined surface. A first anti-recoil platform is provided on the first inclined surface. A second anti-recoil platform is provided on the second inclined surface. During mold closing, the first plane and the second anti-retraction platform are pressed together, and the first anti-retraction platform and the second plane are pressed together to jointly restrict the backward movement of the lower slide block; The driving component drives the lower slider to retract until the first plane and the second anti-retraction platform are misaligned. After the second plane and the first anti-retraction platform are misaligned, the upper slider moves out along the first slide groove and separates from the lower slider, thus completing the demolding.

2. The slider anti-retraction mechanism according to claim 1, characterized in that, The first anti-retrograde platform divides the first inclined plane into a first sub-inclined plane and a second sub-inclined plane with a height difference; the second anti-retrograde platform divides the second inclined plane into a third sub-inclined plane and a fourth sub-inclined plane with a height difference.

3. The slider anti-retraction mechanism according to claim 2, characterized in that, The height difference between the first sub-slope and the second sub-slope is the same as the height difference between the third sub-slope and the fourth sub-slope; the length of the first sub-slope is the same as the length of the third sub-slope.

4. The slider anti-retraction mechanism according to claim 2 or 3, characterized in that, The lower surface of the sliding connector is parallel to the first inclined surface.

5. The slider anti-retraction mechanism according to claim 4, characterized in that, The sliding connector includes a vertical connecting portion extending from the lower end of the upper slider towards the lower slider, and a lateral sliding portion extending laterally from the end of the vertical connecting portion away from the upper slider.

6. The slider anti-retraction mechanism according to claim 5, characterized in that, The first groove includes a first sub-groove adapted to the outer contour of the vertical connecting part, and a second sub-groove that is directly connected to the first sub-groove and slides in cooperation with the lateral sliding part.

7. The slider anti-retraction mechanism according to claim 6, characterized in that, The height of the second sub-groove is greater than the height of the transverse sliding part; the height difference between the second sub-groove and the transverse sliding part is equal to the height difference between the first sub-inclined surface and the second sub-inclined surface, or equal to the height difference between the third sub-inclined surface and the fourth sub-inclined surface.

8. The slider anti-retraction mechanism according to claim 1, characterized in that, The upper slider is provided with at least one forming rod that is vertically upward.

9. The slider anti-retraction mechanism according to claim 8, characterized in that, The upper surface of the upper slider is provided with at least one second groove for the forming rod to slide; the forming rod is slidably connected to the upper slider through the second groove.

10. The slider anti-retraction mechanism according to claim 9, characterized in that, The second groove extends along the width direction of the upper surface of the upper slider; the first groove extends along the length direction of the lower surface of the lower slider.

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