Mold with built-in multi-ejection mechanism

Abstract

The utility model relates to a mould with a built-in multi-ejection mechanism, which comprises an ejector plate, a bearing plate and a push plate, the push plate is fixedly connected with an ejection rod, the bearing plate is fixedly connected with a fixed rod, the lower end of the ejection rod is lower than the lower end of the fixed rod, the lower end of the fixed rod forms an inverted conical guide part, a sliding cavity is arranged in the ejector plate, and the sliding cavity is communicated with the ejector plate. A movable block capable of horizontally sliding is arranged in the sliding cavity, a first through hole matched with the ejector rod and a second through hole matched with the fixed rod are formed in the movable block, a third through hole and a fourth through hole which are communicated with the sliding cavity are formed in the ejector plate, and the third through hole and the fourth through hole are matched and aligned with the ejector rod and the fixed rod respectively; a reset spring is arranged between the side end of the movable plate and the side wall of the sliding cavity, and in the natural state, the first penetrating hole and the second penetrating hole are staggered with the third penetrating hole and the fourth penetrating hole correspondingly. The mold with the built-in multi-ejection mechanism is simple and attractive in structure, small in machining amount and capable of saving cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, especially a mould of built -in multiple ejection mechanism. BACKGROUND

[0002] The ejection mechanism in the mould is used for ejecting the product from the cavity after the product is formed to separate the product from the mould and realize demolding, in the prior art, the product is ejected by the ejector pin driven by the ejector pin plate and the ejector pin on the ejector pin plate is driven to move in the mould and extend into the cavity to realize, need multiple ejection mechanisms in the mould to realize the complete demolding of the product, lead to the structure of the mould is more complex, the volume is bigger, and make the action period of demolding is longer, influence the production efficiency of product.

[0003] In view of the above problems, the utility model improves. UTILITY MODEL CONTENTS

[0004] The utility model provides a mould of built -in multiple ejection mechanism, solve the prior art in the above -mentioned problem of existing in the use.

[0005] The technical scheme of the utility model is realized as follows:

[0006] A kind of mould of built -in multiple ejection mechanism, including ejector pin plate, bearing plate and push plate, the push plate is fixedly connected with the ejection rod passing through bearing plate downwards, the bearing plate is fixedly connected with the fixed rod on the side of ejection rod part passing through bearing plate, the lower end of the ejection rod is lower than the lower end of fixed rod, the lower end of fixed rod forms inverted conical guide portion, sliding cavity is set in the ejector pin plate, the movable block that can slide horizontally is arranged in the sliding cavity, the first perforation matched with ejection rod and the second perforation matched with fixed rod are set in the movable block, the third perforation and the fourth perforation that communicate with sliding cavity are set in the ejector pin plate, the third perforation and the fourth perforation are matched with ejection rod and fixed rod respectively and are aligned, reset spring is arranged between movable block side end and sliding cavity side wall, in natural state, the first perforation and the second perforation are misaligned with the third perforation and the fourth perforation respectively.

[0007] Preferably, the upper end of the ejection rod passes through the bearing plate and is screwed with the first bolt threaded on the push plate, and the upper end of the fixed rod passes into the bearing plate and is screwed with the second bolt threaded on the bearing plate.

[0008] Preferably, the sliding cavity passes through the ejector pin plate downwards, the ejector pin plate lower surface is provided with ejector pin backing plate, the fifth perforation and the sixth perforation aligned with the third perforation and the fourth perforation respectively are set in the ejector pin backing plate.

[0009] Preferably, spring hole is set in the movable block side end, and one end of the reset spring passes into the spring hole.

[0010] Preferably, the upper end of the first, second, third and fourth through holes are chamfered.

[0011] Preferably, a guide notch is formed on one side of the upper end of the second through hole.

[0012] In summary, the beneficial effects of the present application are that the multiple ejection mechanism composed of the ejector rod, the fixed rod, the ejector plate and the movable block can realize multiple ejection actions during demolding, the multiple ejection mechanism can be arranged at any position with space in the mold, the structure is simple and stable, the processing amount is small and the cost is saved, and the multiple ejection mechanism arranged in the mold makes the mold more beautiful as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 is a cross-sectional view of the present application;

[0015] Figure 2 is Figure 1 is an enlarged view of position A in the middle;

[0016] Figure 3 is a structural view of the ejector rod, the fixed rod and the movable block in the present application.

[0017] In the figure: 1, ejector plate; 11, sliding cavity; 12, third through hole; 13, fourth through hole; 2, bearing plate; 21, second bolt; 3, push plate; 31, first bolt; 4, ejector rod; 5, fixed rod; 51, guide part; 6, movable block; 61, first through hole; 62, second through hole; 63, guide notch; 64, spring hole; 7, return spring; 8, ejector support plate; 81, fifth through hole; 82, sixth through hole. DETAILED DESCRIPTION

[0018] The drawings needed to be used in the embodiments of the present application will be briefly introduced below. Figures 1-3 The technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0019] As shown in the figure, a built-in multiple ejection mechanism die, including ejector plate 1, bearing plate 2 and push plate 3, the push plate 3 is fixedly connected with the ejection rod 4 downward through the bearing plate 2, the bearing plate 2 is fixedly connected with the fixed rod 5 located on the side of the ejection rod 4 through the bearing plate 2 part, the lower end of the ejection rod 4 is lower than the lower end of the fixed rod 5, the lower end of the fixed rod 5 is formed with inverted conical guide part 51, the sliding cavity 11 is set in the ejector plate 1, the movable block 6 which can slide horizontally is arranged in the sliding cavity 11, the movable block 6 is provided with the first perforation 61 matched with the ejection rod 4 and the second perforation 62 matched with the fixed rod 5, the third perforation 12 and the fourth perforation 13 which communicate with the sliding cavity 11 are set in the ejector plate 1, the third perforation 12 and the fourth perforation 13 are matched and aligned with the ejection rod 4 and the fixed rod 5 respectively, the reset spring 7 is arranged between the side end of the movable block 6 and the side wall of the sliding cavity 11, in the natural state, the first perforation 61 and the second perforation 62 are respectively dislocated with the third perforation 12 and the fourth perforation 13.

[0020] Specifically, the ejection rod 4 and the fixed rod 5 are fixedly connected to the push plate 3 and the bearing plate 2 respectively: the upper end of the ejection rod 4 is threaded with the first bolt 31 threaded through the bearing plate 2 and the push plate 3, the upper end of the fixed rod 5 is threaded with the second bolt 21 threaded into the bearing plate 2 and the bearing plate 2, through the above structure, the connection operation of the ejection rod 4 and the fixed rod 5 with the push plate 3 and the bearing plate 2 is facilitated, thereby facilitating the operation during die assembly.

[0021] Specifically, the sliding cavity 11 penetrates the ejector plate 1 downward, the ejector plate 1 is provided with the ejector plate 8 on the lower surface, the ejector plate 8 is provided with the fifth perforation 81 and the sixth perforation 82 which are aligned with the third perforation 12 and the fourth perforation 13 respectively, through the above structure, the ejector plate 8 is fixedly connected with the ejector plate 1 below the ejector plate 1 to support the sliding block, so that the sliding block is kept in the sliding cavity 11, and the sliding cavity 11 penetrates the ejector plate 1 downward to form a port for facilitating the arrangement of the movable block 6 in the sliding cavity 11, thereby facilitating the operation during die assembly.

[0022] In the above structure, the natural state is that the ejector plate 1 is not driven by the injection molding machine ejector rod, the reset spring 7 drives the movable block 6 in the sliding cavity 11 to the side wall of the sliding cavity 11, so that the first perforation 61 and the second perforation 62 are respectively misaligned with the third perforation 12 and the fourth perforation 13. When the injection molding machine ejector rod drives the ejector plate 8 and drives the ejector plate 1 to move towards the support plate 2 to perform the demolding action, the lower end of the ejector rod 4 first penetrates into the first perforation 61, and because the third perforation 12 is misaligned with the first perforation 61 at this time, the lower end of the ejector rod 4 penetrates into the first perforation 61 and abuts against the movable block 6. The movable block 6 moves upward together with the ejector plate 1 to drive the push plate 3 upward to realize the first ejection. When the ejector plate 1 continues to move upward to the side of the guide part 51 of the lower end of the fixed rod 5 and the port of the second perforation 62, the movable block 6 slides horizontally in the sliding cavity 11 under the action of the guide part 51 with a tapered surface and compresses the reset spring 7, so that the first perforation 61 and the second perforation 62 are respectively aligned with the third perforation 12 and the fourth perforation 13. At this time, the push plate 3 and the ejector rod 4 are ejected in place and stop moving, and the ejector plate 1 continues to move upward through the sliding of the ejector rod 4 and the fixed rod 5 in the second perforation 62 and the third perforation 12 to realize the second ejection. The multiple ejection mechanism composed of the ejector rod 4, the fixed rod 5, the ejector plate 1 and the movable block 6 can be arranged at any space position in the mold, and the structure is simple and stable, the machining amount is small and the cost is saved. Moreover, the multiple ejection mechanism arranged in the mold makes the mold more beautiful as a whole.

[0023] In addition, the side end of the movable block 6 is provided with a spring hole 64, one end of the reset spring 7 penetrates into the spring hole 64, and the spring hole 64 limits the reset spring 7 to stably keep between the side end of the movable block 6 and the side wall of the sliding cavity 11 to reset the movable block 6.

[0024] In addition, the upper end of the first perforation 61, the second perforation 62, the third perforation 12 and the third perforation 12 is chamfered, so that the ejector rod 4 and the fixed rod 5 can be more smoothly penetrated into the first perforation 61 and the third perforation 12 and the second perforation 62 and the fourth perforation 13.

[0025] In addition, the side of the upper end of the second perforation 62 is formed with a guide notch 63 communicating with the second perforation 62, and the guide notch 63 has a guide slope matching with the guide part 51, so that the guide part 51 can be more smoothly inserted into the second perforation 62 to drive the movable block 6 to slide horizontally in the sliding cavity 11.

[0026] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mould with built-in multiple ejection mechanism, comprising a pin plate (1), a carrier plate (2) and a push plate (3), characterized in that: The push plate (3) is fixedly connected with an ejection rod (4) penetrating through the supporting plate (2) downward, the supporting plate (2) is fixedly connected with a fixed rod (5) located at one side of the part of the ejection rod (4) penetrating out of the supporting plate (2), the lower end of the ejection rod (4) is lower than the lower end of the fixed rod (5), the lower end of the fixed rod (5) is formed with an inverted conical guide portion (51), the thimble plate (1) is provided with a sliding cavity (11), the sliding cavity (11) is provided with a movable block (6) horizontally sliding, the movable block (6) is provided with a first perforation (61) matched with the ejection rod (4) and a second perforation (62) matched with the fixed rod (5), the thimble plate (1) is provided with a third perforation (12) and a fourth perforation (13) communicating with the sliding cavity (11), the third perforation (12) and the fourth perforation (13) are matched and aligned with the ejection rod (4) and the fixed rod (5) respectively, the reset spring (7) is arranged between the side end of the movable block (6) and the side wall of the sliding cavity (11), and in the natural state, the first perforation (61) and the second perforation (62) are misaligned with the third perforation (12) and the fourth perforation (13) respectively.

2. The mold with built-in multiple ejection mechanism according to claim 1, characterized in that: The upper end of the ejection rod (4) penetrates out of the supporting plate (2) and is screwed with the first bolt (31) penetrating and arranged on the push plate (3), and the upper end of the fixed rod (5) penetrates into the supporting plate (2) and is screwed with the second bolt (21) penetrating and arranged on the supporting plate (2).

3. The mold with built-in multiple ejection mechanism according to claim 2, characterized in that: The sliding cavity (11) penetrates through the thimble plate (1) downward, the thimble plate (1) is provided with a thimble supporting plate (8) on the lower surface, and the thimble supporting plate (8) is provided with a fifth perforation (81) and a sixth perforation (82) aligned with the third perforation (12) and the fourth perforation (13) respectively.

4. The mold with built-in multiple ejection mechanism according to claim 3, characterized in that: The side end of the movable block (6) is provided with a spring hole (64), and one end of the reset spring (7) penetrates into the spring hole (64).

5. The mold with built-in multiple ejection mechanism according to claim 1, characterized in that: The upper end of the first perforation (61), the second perforation (62), the third perforation (12) and the fourth perforation (12) is chamfered.

6. The mold with built-in multiple ejection mechanism according to claim 5, characterized in that: The side of the upper end of the second perforation (62) is formed with a guide notch (63) communicating with the second perforation (62).

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