Square-iron-free double push plate structure

Abstract

The invention discloses a square-iron-free double-push-plate structure which comprises a plate A, a plate B and a push plate and is characterized by further comprising a buckling machine structure, the buckling machine structure comprises a buckling machine box, a control rod and a sliding block, the buckling machine box is fixed to the plate A, the control rod is fixed to the plate B, a sliding hole is formed in the push plate, and the sliding block is arranged in the sliding hole. The sliding block can slide in the sliding hole and can abut against the buckle machine box through the action of the elastic piece, the buckle machine box is provided with an ejection structure capable of pushing the sliding block to ascend so as to drive the push plate to ascend, and the control rod is provided with an extrusion structure capable of extruding the sliding block to move towards the interior of the sliding hole so as to enable the ejection structure to be separated from the sliding block.

Description

Technical Field

[0001] The invention relates to an injection mold, in particular to a square iron-free double push plate structure. Background Art

[0002] In order to control the order and distance of mold opening, ordinary molds use a chain to connect the A plate and the push plate. After the A plate is opened to a certain distance, the chain is straightened to drive the push plate to realize the ejection action.

[0003] The disadvantages of the above structure are: after the chain is straightened, it drives the push plate to move. When the push plate moves to the limit position, the inertia force of the injection molding machine opening the mold is very large, and the pulling force on the chain is large, which can easily cause the chain to break and pose a safety hazard; the mold opening stroke is limited by the chain length, so when a larger stroke is required between the A plate and the push plate during the mold opening process, the chain length is particularly long, and the chain falls when the mold is closed, affecting the mold movement. Therefore, the applicant has designed a double push plate structure without square iron. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a double push plate structure without square iron.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A double push plate structure without square iron, comprising an A plate, a B plate and a push plate, characterized in that it also includes a latch structure, the latch structure comprising a latch box, a control rod and a sliding block, the latch box is fixed to the A plate, the control rod is fixed to the B plate, a sliding hole is provided in the push plate, the sliding block can slide in the sliding hole and can resist the latch box through the action of an elastic member, the latch box is provided with a push-up structure that can push the sliding block up and thereby drive the push plate up, and the control rod is provided with an extrusion structure that can squeeze the sliding block to move into the sliding hole so as to separate the push-up structure from the sliding block.

[0007] The push-up structure is a boss protruding from the surface of the buckle box.

[0008] The extrusion structure is a convex ridge protruding from the surface of the control rod, and the convex ridge has a lower guiding inclined surface and an upper guiding inclined surface.

[0009] A slide slot is provided in the trigger box, and the control rod is located in the slide slot.

[0010] The elastic member is a spring, a mounting hole is provided on the sliding block, one end of the spring is located in the mounting hole, and the other end of the spring abuts against the bottom of the sliding hole.

[0011] The sliding block is provided with a limiting hole and a limiting screw arranged in the limiting hole, the bottom of the limiting hole is provided with a through hole, the bottom of the sliding hole is provided with a limiting screw hole, and the limiting screw is connected with the limiting screw hole through the through hole.

[0012] A nitrogen spring is provided between the B plate and the push plate to support the push plate after the mold is opened.

[0013] The push plate includes push plate 1 and push plate 2, both of which are provided with sliding holes, and a nitrogen spring 2 is provided between the push plate 1 and the push plate 2, so as to support the push plate 1 after the mold is opened, and the nitrogen spring 1 is connected to the push plate 2.

[0014] The latch box comprises box one and box two, and box one and box two are fixedly connected by screws.

[0015] The bottom surface of the box one is provided with a positioning groove, and the top surface of the box two is provided with a positioning block engaged with the positioning groove.

[0016] The beneficial effect of the present invention is that the present invention adopts a latching structure to replace the previous chain structure, and the latching structure is mainly composed of a latching box, a control rod, and a sliding block, so there is no soft connection between the A plate and the push plate, which not only greatly improves the rigidity and reliability of the overall connection, but also prevents the problem of the chain falling and affecting the mold movement when the mold is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is the overall structural view of the present invention;

[0019] Figure 2 It is a cross-sectional structural view of the present invention;

[0020] Figure 3 It is a structural view of the buckle structure of the present invention;

[0021] Figure 4 It is an exploded view of the trigger structure of the present invention;

[0022] Figure 5 It is an exploded view of the trigger structure of the present invention from another direction;

[0023] Figure 6 It is a position view of the limit screw of the present invention;

[0024] Figure 7 1 is a position view of the nitrogen spring of the present invention. DETAILED DESCRIPTION

[0025] The advantages and features of the present disclosure and its implementation methods will be explained by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0026] The shapes, sizes, ratios, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are only examples, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when the detailed description of the relevant known functions or configurations is determined to be unnecessary to blur the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having" and "comprising" described in this specification, other parts may be added unless "only" is used. Unless otherwise indicated, the terms in the singular may include plural forms.

[0027] When explaining an element, although not explicitly described, the element is understood to include a range of error.

[0028] When describing a positional relationship, for example, when the positional relationship is described as "on," "above," "below," and "adjacent to," unless "immediately" or "directly" is used, one or more parts may be arranged between two other parts.

[0029] When describing a time relationship, for example, when a time sequence is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.

[0030] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0031] As those skilled in the art can fully understand, the features of the different embodiments of the present disclosure can be coupled or combined with each other in part or in whole, and can cooperate with each other in various ways and be driven technically. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a mutually dependent relationship.

[0032] Reference Figures 1 to 7The present invention discloses a double push plate structure without square iron, including an A plate 1, a B plate 2 and a push plate 3, and also includes a locking structure, wherein the locking structure includes a locking box 4, a control rod 5 and a sliding block 6, wherein the locking box 4 is fixed to the A plate 1, and the control rod 5 is fixed to the B plate 2, and a sliding hole 7 is provided in the push plate 3, wherein the sliding block 6 can slide in the sliding hole 7 and can resist the locking box 4 through the action of an elastic member 8, and a push-up structure 9 is provided on the locking box 4 to push the sliding block 6 up so as to drive the push plate 3 to rise, and an extrusion structure 10 is provided on the control rod 5 to extrude the sliding block 6 to move into the sliding hole 7 so as to separate the push-up structure 9 from the sliding block 6, and the above process is that when the mold is opened, the A plate 1 moves along the mold opening direction while the B plate 2 does not move, so the locking box 4 moves with the A plate 1; and the control rod 5 It is stationary. At this time, the extrusion structure 10 is located above the sliding block 6, and the push-up structure 9 is located below the sliding block 6. One end of the sliding block 6 is located in the sliding hole 7 and the other end of the sliding block 6 is located outside the sliding hole 7 through the action of the elastic member 8 and contacts with the latch box 4. After the A plate 1 moves a certain distance, the push-up structure 9 contacts with the part of the sliding block 6 exposed outside the sliding hole 7, so that the A plate 1 can drive the push plate 3 and the sliding block 6 to move. After the A plate 1 and the push plate 3 move a certain distance together, the sliding block 6 contacts and squeezes the extrusion structure 10, so that the sliding block 6 retracts into the sliding hole 7 and separates from the push-up structure 9. At this time, only the A plate 1 continues to move along the mold opening direction until the mold opening is completed. The above process realizes the controllable mold opening sequence and distance of the A plate 1 and the push plate 3 through the latch structure, and avoids the defects of the chain connection. In the mold closing process, the A plate 1 and the push plate 3 move in opposite directions but the principle is the same, so it will not be described in detail. As a preferred structure, after the push plate 3 opens the mold, because the mold opening process has not been completed, a nitrogen spring 23 is provided between the B plate 2 and the push plate 3 to support the push plate 3 after the mold opening, so as to maintain the position of the push plate 3 and prevent it from falling back.

[0033] As shown in the figure, the push-up structure 9 is a boss protruding from the surface of the trigger box 4, the surface where the boss contacts the sliding block 6 is flat, and the boss and the trigger box 4 are integrally formed by a milling cutter, so they have high strength and good reliability.

[0034] As shown in the figure, the extrusion structure 10 is a ridge protruding from the surface of the control rod 5, and the ridge has a lower guiding slope 11 and an upper guiding slope 12. The cross-section of the ridge is triangular. When the mold is opened, the upper guiding slope 12 and the sliding block 6 are squeezed when the push plate 3 rises, so that the sliding block 6 is retracted, ensuring that the push plate 3 is separated from the A plate 1. When the mold is closed, the lower guiding slope 11 and the sliding block 6 are squeezed when the push plate 3 descends, so that the sliding block 6 is retracted, thereby ensuring that the push plate 3 can be closed with the B plate 2.

[0035] As shown in the figure, a slide groove 13 is provided in the latch box 4, and the control rod 5 is located in the slide groove 13. The above structure saves space and has a compact overall structure. Of course, the ridges and bosses are staggered and not in a straight line.

[0036] As shown in the figure, the elastic member 8 is a spring, and the sliding block 6 is provided with a mounting hole 14, one end of the spring is located in the mounting hole 14, and the other end of the spring is against the bottom of the sliding hole 7; the sliding block 6 is provided with a limiting hole 15 and a limiting screw 16 arranged in the limiting hole 15, the bottom of the limiting hole 15 is provided with a through hole, and the bottom of the sliding hole 7 is provided with a limiting screw hole, and the limiting screw 16 is connected with the limiting screw hole through the through hole. The above structure is easy to install, and the limiting screw 16 is used to ensure that the sliding block 6 will not fall out of the sliding hole 7 when the push plate 3 is removed or installed. In this application, the through hole and the mounting hole 14 are connected, so that the limiting screw 16 can also serve as a guide column for the spring to prevent the spring from deflecting during extrusion or stretching.

[0037] As shown in the figure, the mold opening process of the present application requires two push plates 3, so the push plate 3 includes a push plate 17 and a push plate 18, and the push plate 17 and the push plate 18 are both provided with a sliding hole 7, and a nitrogen spring 24 is provided between the push plate 17 and the push plate 18, so as to support the push plate 17 after the mold is opened, and the nitrogen spring 13 is connected to the push plate 18. Of course, the boss and the convex ridge are also correspondingly set at two places, so as to realize the separate movement of the push plate 17 and the push plate 18 to open the mold.

[0038] Preferably, in order to prevent the push plate 17 and the push plate 2 18 from moving too far during mold opening, resulting in inaccurate stroke, a limit screw 25 and a limit countersunk hole 26 are provided between the push plate 17 and the push plate 2 18; a limit screw 27 and a limit countersunk hole 28 are provided between the push plate 2 18 and the B plate 2, the limit screw 25 and the limit screw 27 are both fixed to the push plate 2 18, the limit countersunk hole 1 26 is located on the push plate 17, and the limit countersunk hole 28 is located on the B plate 2. When the push plate 17 moves to a certain distance, the step surface in the limit countersunk hole 1 26 will abut against the nut of the limit screw 25 to limit the movement of the push plate 17. Similarly, when the push plate 2 18 and the limit screw 27 move to a certain distance, the nut of the limit screw 27 abuts against the step surface in the limit countersunk hole 28, thereby limiting the position of the push plate 2 18.

[0039] As shown in the figure, in order to facilitate processing, the buckle box 4 includes box one 19 and box two 20, and the box one 19 and box two 20 are fixedly connected by screws. In order to facilitate assembly, the bottom surface of the box one 19 is provided with a positioning groove 21, and the top surface of the box two 20 is provided with a positioning block 22 that is engaged with the positioning groove 21, so that it is convenient to connect with the screws after positioning.

[0040] The above is a detailed introduction to a double push plate structure without square iron provided in an embodiment of the present invention. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A square iron-free double push plate structure, comprising an A plate, a B plate and a push plate, characterized in that: It also includes a latching structure, which includes a latching box, a control rod, and a sliding block. The latching box is fixed to the A plate, and the control rod is fixed to the B plate. A sliding hole is provided in the push plate, and the sliding block can slide in the sliding hole and can resist the latching box through the action of an elastic member. The latching box is provided with a push-up structure that can push the sliding block up and thereby drive the push plate up. The control rod is provided with a squeezing structure that can squeeze the sliding block to move into the sliding hole so as to separate the push-up structure from the sliding block.

2. The double push plate structure without square iron according to claim 1, characterized in that: The push-up structure is a boss protruding from the surface of the buckle box.

3. The double push plate structure without square iron according to claim 1, characterized in that: The extrusion structure is a convex ridge protruding from the surface of the control rod, and the convex ridge has a lower guiding inclined surface and an upper guiding inclined surface.

4. The double push plate structure without square iron according to claim 1, characterized in that: A slide slot is provided in the trigger box, and the control rod is located in the slide slot.

5. The square iron-free double push plate structure according to claim 1 is characterized in that: The elastic member is a spring, a mounting hole is provided on the sliding block, one end of the spring is located in the mounting hole, and the other end of the spring abuts against the bottom of the sliding hole.

6. The double push plate structure without square iron according to claim 1, characterized in that: The sliding block is provided with a limiting hole and a limiting screw arranged in the limiting hole, the bottom of the limiting hole is provided with a through hole, the bottom of the sliding hole is provided with a limiting screw hole, and the limiting screw is connected with the limiting screw hole through the through hole.

7. The square iron-free double push plate structure according to claim 1 is characterized in that: A nitrogen spring is provided between the B plate and the push plate to support the push plate after the mold is opened.

8. The square iron-free double push plate structure according to claim 7, characterized in that: The push plate includes push plate 1 and push plate 2, both of which are provided with sliding holes, and a nitrogen spring 2 is provided between the push plate 1 and the push plate 2, so as to support the push plate 1 after the mold is opened, and the nitrogen spring 1 is connected to the push plate 2.

9. The square iron-free double push plate structure according to claim 1, characterized in that: The latch box comprises box one and box two, and box one and box two are fixedly connected by screws.

10. The square iron-free double push plate structure according to claim 9, characterized in that: The bottom surface of the box one is provided with a positioning groove, and the top surface of the box two is provided with a positioning block engaged with the positioning groove.

Images