Ejection mechanism of hot pressing die

Abstract

The utility model relates to an ejection mechanism of a hot-pressing die, and belongs to the technical field of hot-pressing dies. Comprising a die base, a forming cavity with an upward opening is formed in the die base, a top plate in sliding connection is arranged at the top of the die base, an upper pressing block fixedly connected is arranged at the bottom of the top plate, the upper pressing block is inserted into the forming cavity and is in sliding connection with the die base, and an annular piece is arranged at the bottom of the forming cavity; the upper pressing block, the annular piece and the forming piece jointly define a closed forming cavity, and a demolding mechanism for pushing the forming piece to move upwards is arranged at the bottom of the forming piece. In the scheme, as the forming part is detachably arranged in the forming cavity, the forming part and the product can be taken out together, and then the product and the forming part are separated from each other outside the mold, so that the technical problem that the product is difficult to demold in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hot -pressing mould technical field relates to a hot -pressing mould's ejection mechanism. BACKGROUND

[0002] The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, pressure casting or forging forming, smelting, punching and the like in industrial production, and the hot -pressing mould is one of the moulds, in the process of manufacturing products of the hot -pressing mould, powder, granular, granular, flaky, even first make and product similar shape plastic blank, place in the heated mould cavity of mould, then close the mould and press, make it form and solidification or vulcanization, form the product corresponding with the structure of cavity, open the mould again, the product formed is ejected from the lower mould through the ejection mechanism, and the product formed is conveniently taken out.

[0003] However, the hot -pressing mould in the prior art still has some problems, for the product with complex structure, in the process of demolding and ejecting, the demolding ejector pin cannot effectively eject the product from the mould, causing the product to be broken and the like, resulting in waste products in the production process, reducing the production efficiency and increasing the production cost. SUMMARY

[0004] The utility model proposes a hot -pressing mould's ejection mechanism aiming at the problems existing in prior art, and the technical problem to be solved by the utility model is how to quickly and effectively eject the product from the mould.

[0005] The utility model discloses a hot -pressing mould's ejection mechanism, including the mould seat, the mould seat inside is equipped with the open upwards forming cavity, the mould seat top is equipped with the sliding connection top plate, the top plate bottom is equipped with the fixed upper pressure block, the upper pressure block inserts the forming cavity inside and is connected with the mould seat sliding, the forming cavity bottom is equipped with the ring part, the ring part center is equipped with the sliding connection forming part, the upper pressure block, ring part and forming part jointly enclose and form the closed forming cavity, the forming part bottom is equipped with the demolding mechanism of pushing the forming part and going up.

[0006] In the present scheme, the top plate moves upward to open the mold, the forming cavity inside the mold base remains open, the forming part is put into the top of the forming cavity, the forming part falls into the upper part of the demolding mechanism, then the plastic raw material that needs to be hot pressed is put into the forming cavity, the top plate moves downward to make the upper pressing block slide into the forming cavity, the material in the forming cavity is hot pressed, after the plastic raw material in the forming cavity is cooled and formed, the top plate is moved upward again to make the upper pressing block extracted from the forming cavity, the demolding mechanism pushes the forming part upward, since the forming part is detachably arranged inside the forming cavity, the forming part can be taken out together with the product, the product and the forming part are separated outside the mold, the technical problem of difficult product demolding in the prior art is solved; at this time, another forming part can be put into the forming cavity for the next round of hot pressing manufacturing, and the production efficiency is improved.

[0007] In the ejection mechanism of the hot pressing mold, the demolding mechanism comprises a connecting piece and a demolding column, the connecting piece is arranged at the bottom of the forming part and is in sliding connection with the forming part, and the top of the demolding column is fixedly connected with the connecting piece. The connecting piece is used for fixing the position of the forming part in the forming cavity, the demolding column pushes the connecting piece upward, and the connecting piece pushes the forming part upward, so that the forming part can be taken off from the connecting piece.

[0008] In the ejection mechanism of the hot pressing mold, the bottom of the mold base is provided with a fixed connecting plate, the bottom of the connecting plate is provided with fixed foot plates on both sides, the inner side of the foot plate is provided with a push plate capable of moving longitudinally, and the bottom of the demolding column is fixedly connected with the push plate. The demolding mechanism is pushed upward by the push plate, and the foot plate plays a connecting and supporting role.

[0009] In the ejection mechanism of the hot pressing mold, the top of the connecting piece is located above the connecting plate, the top of the demolding column passes through the connecting plate upwardly and is fixedly connected with the connecting piece, and the outer side wall of the demolding column is in sliding connection with the connecting plate. In the process of pressing the upper pressing block downward, the connecting plate is used for supporting the connecting piece and the forming part, so that the product is hot pressed in the forming cavity.

[0010] In the ejection mechanism of the hot pressing mold, the bottom of the foot plate on both sides is provided with a fixed bottom plate, the bottom of the bottom plate is provided with a fixed hydraulic cylinder, the upper end of the hydraulic cylinder is provided with a piston rod, and the top of the piston rod passes through the bottom plate and is fixedly connected with the push plate above. The hydraulic cylinder serves as a driving mechanism for pushing the demolding mechanism upward, the piston rod of the hydraulic cylinder extends upward, and the piston rod pushes the push plate upward.

[0011] In the ejection mechanism of the hot pressing mold, the bottom of the foot plate is provided with a fixed support column at four corners, the inner side of the foot plate is provided with a guide column, the top end of the guide column is fixedly connected with the connecting plate, and the bottom end of the guide column is in sliding connection with the bottom plate and is fixedly connected with the bottom plate. The support column is used for increasing the height of the bottom plate, so that the bottom of the bottom plate can be arranged in the structure of the hydraulic cylinder, and the guide column plays a guiding role, so that the push plate can be stably and vertically moved upward.

[0012] In the ejection mechanism of the hot-pressing mold, the top of the forming piece is provided with a plurality of forming grooves communicated with the forming cavity, and the bottom of the upper pressing block is provided with a plurality of forming rods which extend downward into the forming grooves. The forming grooves and the forming rods are used for forming structures on the product.

[0013] Compared with the prior art, the hot-pressing mold has the following advantages:

[0014] In the scheme, the forming piece is detachably arranged in the forming cavity, and the forming piece can be taken out together with the product, and the product and the forming piece are separated outside the mold, so that the technical problem of difficult demolding of the product in the prior art is solved.

[0015] In the scheme, after the forming piece is taken out from the forming cavity together with the product, another forming piece can be put into the forming cavity for the next round of production and manufacturing, so that the waiting time in the demolding process is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Fig. 2 is a schematic diagram of the front view half-section structure of the utility model;

[0018] Fig. 3 is a schematic diagram of the left view half-section structure of the utility model.

[0019] In the figure, 1, mold base; 1a, forming cavity; 1b, forming piece; 1b1, forming groove; 1c, annular piece; 2, top plate; 2a, upper pressing block; 2a1, forming rod; 3, connecting plate; 4, foot plate; 4a, push plate; 5, bottom plate; 5a, support column; 6, hydraulic cylinder; 6a, piston rod; 7, demolding mechanism; 7a, connecting piece; 7b, demolding top column; 8, guide column. DETAILED DESCRIPTION

[0020] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments. EMBODIMENT

[0021] As Fig. 1As shown, the ejection mechanism of the hot-pressing mold includes a mold base 1, a top plate 2 slidably connected to the top of the mold base 1, a connecting plate 3 fixedly connected to the bottom of the mold base 1, foot plates 4 fixedly connected to the bottom of the connecting plate 3, a push plate 4a slidably connected to the inner side of the foot plates 4, a bottom plate 5 fixedly connected to the bottom of the foot plates 4, support columns 5a fixedly connected to the four corners of the bottom of the bottom plate 5, and a hydraulic cylinder 6 fixedly connected to the center of the bottom of the bottom plate 5.

[0022] As shown in the drawings, Fig. 2 The mold base 1 is internally provided with a forming cavity 1a with an opening facing upward, the bottom of the top plate 2 is provided with an upper pressing block 2a fixedly connected thereto, the upper pressing block 2a is inserted into the interior of the forming cavity 1a and is slidably connected with the mold base 1, the bottom of the forming cavity 1a is provided with an annular member 1c, the center of the annular member 1c is provided with a forming member 1b slidably connected thereto, the upper pressing block 2a, the annular member 1c and the forming member 1b jointly form a closed forming cavity 1a, the bottom of the forming member 1b is provided with a demolding mechanism 7 for pushing the forming member 1b upward, the demolding mechanism 7 includes a connecting member 7a and a demolding top column 7b, the top of the connecting member 7a is located above the connecting plate 3, the top of the demolding top column 7b penetrates through the connecting plate 3 and is fixedly connected with the connecting member 7a, the outer side wall of the demolding top column 7b is slidably connected with the connecting plate 3, the bottom of the demolding mechanism 7 is fixedly connected with the push plate 4a, the upper end of the hydraulic cylinder 6 is provided with a piston rod 6a, the top of the piston rod 6a penetrates through the bottom plate 5 and is fixedly connected with the push plate 4a above it

[0023] As shown in the drawings, Fig. 3 The top of the forming member 1b is provided with a plurality of forming grooves 1b1 in communication with the forming cavity 1a, the forming grooves 1b1 are in a grid shape, the bottom of the upper pressing block 2a is provided with a plurality of forming rods 2a1 extending downward into the forming cavity 1a, the inner side of the foot plates 4 is provided with guide columns 8, the top ends of the guide columns 8 are fixedly connected with the connecting plate 3, the bottom ends of the guide columns 8 penetrate through the push plate 4a and are slidably connected with the bottom plate 5.

[0024] The working principle of the present scheme is as follows, as shown in the drawings, Figs. 1-3As shown, the top plate 2 moves upward to open the mold, the forming cavity 1a inside the mold base 1 remains in an open state, the forming piece 1b is put into the top of the forming cavity 1a, the forming piece 1b falls into the upper part of the demolding mechanism 7, the plastic raw material that needs to be hot-pressed is put into the forming cavity 1a, the top plate 2 moves downward, the upper pressing block 2a is slidably inserted into the forming cavity 1a, the material in the forming cavity 1a is hot-pressed, after the plastic raw material in the forming cavity 1a is cooled and formed, the top plate 2 is moved upward again, the upper pressing block 2a is extracted from the forming cavity 1a, the hydraulic cylinder 6 is controlled to extend the piston rod 6a upward, the piston rod 6a pushes the push plate 4a to move vertically upward, the push plate 4a drives the demolding top column 7b at the top to move upward, the demolding top column 7b pushes the connecting piece 7a and the forming piece 1b to move upward, since the forming piece 1b is detachably arranged inside the forming cavity 1a, the forming piece 1b can be taken out together with the product, the product and the forming piece 1b are separated outside the mold, and another forming piece 1b can be put into the forming cavity 1a for the next round of production and manufacturing.

[0025] The specific embodiments described herein merely exemplify the spirit of the present application. Those skilled in the art to which the present application pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

[0026] Although the terms such as 1, mold base; 1a, forming cavity; 1b, forming piece; 1b1, forming groove; 1c, annular piece; 2, top plate; 2a, upper pressing block; 2a1, forming rod; 3, connecting plate; 4, foot plate; 4a, push plate; 5, bottom plate; 5a, support column; 6, hydraulic cylinder; 6a, piston rod; 7, demolding mechanism; 7a, connecting piece; 7b, demolding top column; 8, guide column, etc. are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any kind of additional limitation by interpreting them is contrary to the spirit of the present application.

Claims

1. A hot-pressing mold ejection mechanism, comprising a mold base (1) with an upwardly open forming cavity (1a) inside, a top plate (2) slidably connected to the top of the mold base (1), and an upper pressing block (2a) fixed to the bottom of the top plate (2) and inserted into the forming cavity (1a) and slidably connected to the mold base (1), characterized in that, The bottom of the forming cavity (1a) is provided with an annular part (1c), the center of the annular part (1c) is provided with a slidingly connected forming part (1b), the upper pressing block (2a), the annular part (1c) and the forming part (1b) jointly enclose a closed forming cavity (1a), and the bottom of the forming part (1b) is provided with a demolding mechanism (7) for pushing the forming part (1b) to move upwards.

2. The ejection mechanism of a hot press mold according to claim 1, wherein The demolding mechanism (7) comprises a connecting piece (7a) and a demolding top column (7b), the connecting piece (7a) is arranged at the bottom of the forming part (1b) and is in sliding connection with the forming part (1b), and the top of the demolding top column (7b) is fixedly connected with the connecting piece (7a).

3. The ejection mechanism of a hot press mold according to claim 2, wherein The bottom of the mold base (1) is provided with a fixedly connected connecting plate (3), the bottom of the connecting plate (3) is provided with fixedly connected foot plates (4) on both sides, the inner side of the foot plate (4) is provided with a push plate (4a) capable of moving longitudinally, and the bottom of the demolding top column (7b) is fixedly connected with the push plate (4a).

4. The ejection mechanism of a hot press mold according to claim 3, wherein The top of the connecting piece (7a) is located above the connecting plate (3), the top of the demolding top column (7b) passes through the connecting plate (3) upwards and is fixedly connected with the connecting piece (7a), and the outer side wall of the demolding top column (7b) is in sliding connection with the connecting plate (3).

5. The ejection mechanism of a hot press mold according to claim 3, wherein The bottom of the foot plate (4) on both sides is provided with a fixedly connected bottom plate (5), the bottom of the bottom plate (5) is provided with a fixedly connected hydraulic cylinder (6), the upper end of the hydraulic cylinder (6) is provided with a piston rod (6a), the top of the piston rod (6a) passes through the bottom plate (5) and is fixedly connected with the push plate (4a) above.

6. The ejection mechanism of a hot press mold according to claim 5, wherein The bottom of the push plate (4a) is provided with a fixedly connected support column (5a) at four corners, the inner side of the foot plate (4) is provided with a guide column (8), the top end of the guide column (8) is fixedly connected with the connecting plate (3), and the bottom end of the guide column (8) is in sliding connection with the bottom plate (5) and is fixedly connected with the bottom plate (5).

7. The ejection mechanism of a hot press mold according to claim 1, wherein The top of the forming part (1b) is provided with a plurality of forming grooves (1b1) in communication with the forming cavity (1a), and the bottom of the upper pressing block (2a) is provided with a plurality of forming rods (2a1) extending downward into the forming cavity (1a).

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