Lower die locking device of cold and hot pressing forming machine

Abstract

The utility model discloses a lower die locking device of a cold and hot pressing forming machine, which comprises a bearing plate, a hollow part is arranged on the bearing plate, a gap is reserved between the hollow part and a lower die of a die, a supporting part positioned at the edge of the hollow part is arranged on the bearing plate, and the supporting part is used for supporting a limiting rod arranged on the lower die; a locking structure is arranged below the bearing plate, the locking structure comprises a locking hook capable of swinging relative to the bearing plate, and the locking hook penetrates through a gap between the hollow part and the lower die and hooks the limiting rod. According to the lower die locking device of the cold and hot pressing forming machine, the lower die of the die can be positioned and locked, and the lower die is kept stable when the upper die is pulled up.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold and hot press forming field especially relates to a lower mould locking device of cold and hot press forming machine. BACKGROUND

[0002] The roughcast of plastic shoe sole still needs to further adjust surface profile precision after injection molding, at this time can place the roughcast in the mould formed by the upper mould and the lower mould buckling, let the mould pass through heating, constant temperature, cooling, constant temperature and other procedures in turn, let the roughcast pass through heat treatment plasticity and cold treatment setting in the mould. However, the traditional cold and hot press forming machine needs manual operation to open and close the upper mould of the mould, because the weight of the mould is big, and the product quantity is many when producing, frequent manual operation not only needs to consume a lot of manpower cost, and there is security risk. Although the mechanism specially used for pulling up the upper mould can be designed, because the lower mould and the mould support plate are not fixedly connected, and the upper mould and the lower mould are rotatably connected through the hinge, when pulling up the upper mould, the lower mould cannot be locked, leading to the lower mould easily shaking or even being pulled up with the upper mould, thereby causing the bump and damage of the mould. SUMMARY

[0003] The utility model discloses a lower mould locking device of cold and hot press forming machine can position and lock the lower mould of the mould, and when pulling up the upper mould, let the lower mould keep stable.

[0004] In order to achieve the above object, the utility model provides a lower mould locking device of cold and hot press forming machine, including the support plate, be equipped with the hollow part on the support plate, and the gap between the hollow part and the lower mould of the mould, be equipped with the support part on the support plate and be located the limit rod of support part for supporting setting on the lower mould, the lower of support plate is equipped with the locking structure, and the locking hook of locking structure can swing relative to the support plate, and the locking hook passes through the gap between the hollow part and the lower mould and hooks the limit rod.

[0005] As a further improvement of the utility model, the limit rod is arranged at the outer side wall of the lower mould and extends horizontally, the top surface of the support part is provided with a concave limit groove, the limit rod falls in the limit groove, and the number of the limit rod and the limit groove corresponds one by one.

[0006] As a further improvement of the utility model, the limit rod is a plurality of and symmetrically arranged on the left and right side walls of the lower mould, and the front and rear sides of the left and right side walls of the lower mould are provided with limit rods, the rear ends of the upper mould and the lower mould of the mould are rotatably connected through the hinge, and the locking hook hooks the limit rod on the front side of the lower mould.

[0007] As a further improvement of the utility model, the locking structure further comprises a locking structure fixing seat, a telescopic driving element and a locking swing arm, the locking hook is arranged at one end of the locking swing arm; the locking structure fixing seat is rotationally connected with the middle part of the locking swing arm through a first locking pivot, one end of the telescopic driving element is rotationally connected with the locking structure fixing seat, and the other end of the telescopic driving element is rotationally connected with the other end of the locking swing arm through a second locking pivot.

[0008] As a further improvement of the utility model, the locking structure fixing seat is provided with an arc guide groove, the center of the arc guide groove coincides with the axis of the first locking pivot, and the second locking pivot passes through the arc guide groove and is in sliding fit with the arc guide groove.

[0009] Beneficial effects

[0010] Compared with the prior art, the lower die locking device of the cold and hot press forming machine has the following advantages:

[0011] 1. The mold is placed at the hollow part of the supporting plate, the supporting part supports the limiting rods of the lower die, thereby supporting the lower die. The locking hook of the locking structure passes through the gap between the hollow part and the lower die and hooks the limiting rod, thereby locking the lower die. After the lower die is locked, pulling up the upper die will not lift the lower die, thereby ensuring the stability of the lower die and avoiding the problem that the lower die falls out of the hollow part. The mold is prevented from being bumped and damaged.

[0012] 2. The limiting rods fall into the limiting grooves recessed on the top surface of the supporting part, thereby further reducing the probability that the lower die shakes forward and backward. Since the limiting grooves have a certain limiting effect, and the rear ends of the upper die and the lower die are rotationally connected through the hinge, the locking hook only needs to hook the limiting rod on the front side of the lower die, without the need to hook each limiting rod through the locking hook, thereby reducing the production cost of the equipment.

[0013] 3. The locking hook is arranged on the locking swing arm, the rotation of the locking swing arm is realized through the telescopic driving element, and the structure is simple. When the locking swing arm rotates, the second locking pivot passes through the arc guide groove and is in sliding fit with the arc guide groove, thereby ensuring the stability of the rotation of the locking swing arm.

[0014] The utility model will become more clear through the following description and in conjunction with the drawings, which are used to explain the embodiments of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Figure 1 It is a perspective view of a lower die locking device of a cold and hot press forming machine.

[0017] Figure 2 It is an enlarged view of the hollow part and the supporting part.

[0018] Figure 3 It is a perspective view of a mold.

[0019] Figure 4 It is a side view of the mold and the locking structure. DETAILED DESCRIPTION

[0020] The embodiments of the present application will now be described with reference to the accompanying drawings.

[0021] Embodiment

[0022] As shown in the specific embodiment of the present application, Figures 1 to 4 A lower die locking device of a cold and hot press forming machine, comprising a supporting plate 3, the supporting plate 3 is provided with a hollow part 31, a gap is left between the hollow part 31 and the lower die 22 of a mold 2, the supporting plate 3 is provided with a supporting part 32 located at the edge of the hollow part 31, and the supporting part 32 is used for supporting a limiting rod 25 arranged on the lower die 22. A locking structure 4 is arranged below the supporting plate 3, the locking structure 4 comprises a locking hook 431 which can swing relative to the supporting plate 3, the locking hook 431 passes through the gap between the hollow part 31 and the lower die 22 and hooks the limiting rod 25.

[0023] The limiting rod 25 is arranged at the outer side wall of the lower die 22 and extends transversely. The top surface of the supporting part 32 is provided with a concave limiting groove 33, the limiting rod 25 falls in the limiting groove 33, and the number of the limiting rod 25 and the limiting groove 33 corresponds one by one. In addition, the end of the limiting rod 25 away from the lower die 22 can be provided with a rod head, the rod head is cylindrical, the cross-sectional diameter of the rod head is greater than that of the limiting rod 25, the rod head and the limiting groove 33 are staggered with each other, the rod head can limit the sliding amplitude of the lower die 22 in the transverse direction, and even if the limiting rod 25 translates relative to the limiting groove 33, the end of the limiting rod 25 can also be prevented from falling off from one end of the limiting groove 33 due to the blocking effect of the rod head.

[0024] In the embodiment, the limiting rods 25 are 8 and symmetrically arranged on the left and right side walls of the lower mold 22, four on each side. The front and rear sides of the left and right side walls of the lower mold 22 are each provided with a limiting rod 25. The upper mold 21 and the lower mold 22 of the mold 2 are rotationally connected through the hinge 23 at the rear ends thereof. The locking hook 431 hooks the limiting rod 25 located at the front side of the lower mold 22. As shown in Figure 4 the front end of the upper mold 21 is connected with a lifting lug 24, and the upper mold 21 is opened upward by pulling up the lifting lug 24, and the upper mold 21 rotates counterclockwise around the hinge 23 when being opened.

[0025] The locking structure 4 further comprises a locking structure fixing seat 41, a telescopic driving member 42, and a locking swing arm 43, and the locking hook 431 is arranged at one end of the locking swing arm 43. The locking structure fixing seat 41 is rotationally connected with the middle part of the locking swing arm 43 through a first locking rotation shaft 44, one end of the telescopic driving member 42 is rotationally connected with the locking structure fixing seat 41, and the other end of the telescopic driving member 42 is rotationally connected with the other end of the locking swing arm 43 through a second locking rotation shaft 45.

[0026] The locking structure fixing seat 41 is provided with a circular arc guide groove 46, the center of the circular arc guide groove 46 coincides with the axis of the first locking rotation shaft 44, and the second locking rotation shaft 45 passes through the circular arc guide groove 46 and is slidingly fitted with the same.

[0027] As shown in Figure 4 , when the locking swing arm 43 rotates counterclockwise, the locking hook 431 swings upward and hooks the limiting rod 25; when the locking swing arm 43 rotates clockwise, the locking hook 431 swings downward and moves away from the limiting rod 25, at which time the mold 2 can be lifted from the supporting plate 3 as a whole.

[0028] The supporting plate 3 can be provided with a plurality of hollow parts 31, each of which is used for placing the mold 2, and the supporting plate 3 can intermittently translate relative to the ground, while the locking structure fixing seat 41 is fixed relative to the ground. When a single mold 2 moves to the upper part of the locking structure 4 with the supporting plate 3, the supporting plate 3 stops moving, at which time the locking hook 431 of the locking structure 4 rotates upward and hooks the limiting rod 25, thereby locking the lower mold 22. At this time, when the upper mold 21 is pulled upward, the lower mold 22 will not be pulled up, thereby playing a role in stabilizing the lower mold.

[0029] The above describes the utility model in combination with the best embodiment, but the utility model is not limited to the embodiments disclosed above, but should cover various modifications, equivalent combinations according to the essence of the utility model.

Claims

1. A lower die locking device for a hot and cold pressing molding machine, characterized in that, The support plate (3) includes a support plate (3) with a cutout (31) and a gap between the cutout (31) and the lower mold (22) of the mold (2). The support plate (3) has a support part (32) located at the edge of the cutout (31) and the support part (32) is used to support the limiting rod (25) set on the lower mold (22). The support plate (3) has a locking structure (4) below it. The locking structure (4) includes a locking hook (431) that can swing relative to the support plate (3). The locking hook (431) passes through the gap between the cutout (31) and the lower mold (22) and hooks the limiting rod (25).

2. The lower die locking device for a hot and cold pressing machine according to claim 1, characterized in that, The limiting rod (25) is located on the outer side wall of the lower mold (22) and extends laterally; the top surface of the support part (32) is provided with a recessed limiting groove (33), and the limiting rod (25) falls in the limiting groove (33). The number of limiting rods (25) and limiting grooves (33) are in one-to-one correspondence.

3. The lower mold locking device for a hot and cold pressing machine according to claim 2, characterized in that, The limiting rods (25) are multiple and symmetrically arranged on the left and right side walls of the lower mold (22). The front and rear sides of the left and right side walls of the lower mold (22) are provided with limiting rods (25). The rear ends of the upper mold (21) and the lower mold (22) of the mold (2) are rotatably connected by hinges (23). The locking hook (431) hooks the limiting rods (25) located on the front side of the lower mold (22).

4. The lower mold locking device for a hot and cold pressing machine according to claim 2, characterized in that, The locking structure (4) further includes a locking structure fixing seat (41), a telescopic drive member (42), and a locking swing arm (43). The locking hook (431) is disposed at one end of the locking swing arm (43). The locking structure fixing seat (41) is rotatably connected to the middle part of the locking swing arm (43) through a first locking pivot (44). One end of the telescopic drive member (42) is rotatably connected to the locking structure fixing seat (41), and the other end of the telescopic drive member (42) is rotatably connected to the other end of the locking swing arm (43) through a second locking pivot (45).

5. The lower mold locking device for a hot and cold pressing machine according to claim 4, characterized in that, The locking structure fixing seat (41) is provided with an arc guide groove (46), the center of the arc guide groove (46) coincides with the axis of the first locking rotating shaft (44), and the second locking rotating shaft (45) passes through the arc guide groove (46) and the two slide together.

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