Automatic taking device for plastic mold

Abstract

The utility model discloses an automatic part taking device for a plastic mould, which relates to the technical field of plastic moulds and comprises a frame, a fixing plate, a lower mould and a lifting plate, a lifting rod is arranged on the lifting plate, a connecting block is arranged on one side of the lifting plate, a push rod is fixedly mounted at the top of the connecting block, and a sliding pipe is fixedly mounted on the inner wall of the frame. A push block is slidably arranged in the sliding pipe and connected with the inner wall of the sliding pipe through a first spring, a through hole is formed in the bottom of the sliding pipe, the through hole corresponds to and is matched with the push rod, a sliding groove is formed in the push block, a limiting block is slidably arranged in the sliding groove, and the bottom end of the limiting block penetrates through the push block to be arranged in the through hole. The limiting block is matched with the through hole, so that the first spring is in a compressed state, meanwhile, the pushing block is prevented from moving, after a plastic part is completely lifted out, the pushing rod pushes the limiting block to enter the sliding groove, the first spring loses external force limitation and is restored to push the pushing block, and the pushing block pushes the plastic part out of the mold.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic mould, specifically is a plastic mould automatic taking device. BACKGROUND

[0002] In recent years, with the rapid development of plastic industry and the continuous improvement of general and engineering plastics in strength and precision, the application range of plastic products is also expanding, such as household appliances, instruments and meters, building materials, automobile industry, daily hardware and many other fields, and the proportion of plastic products is increasing rapidly. A well-designed plastic part can replace multiple traditional metal parts. The trend of plasticization of industrial products and daily products is rising.

[0003] The Chinese utility model patent with patent application number 202120054923.0 provides a plastic mould with automatic unloading, by setting the unloading structure and the pushing structure, the unloading structure can automatically unload the processed plastic parts from the lower die, thereby avoiding the problem of manual unloading, thereby achieving the effect of saving time cost, by the pushing structure cooperating with the unloading structure to push the plastic parts out of the mould, thereby avoiding the safety hazard of manual taking.

[0004] However, the oblique push plate on the back of the upper die is pushed forward by the spring force when the upper die moves upward, which pushes the plastic parts to separate from the mould, but when facing high plastic parts, the upward movement of the upper die drives the ejector rod and does not completely eject the plastic parts, the oblique push plate pushes the plastic parts under the action of the spring, which can easily cause damage to the surface of the plastic parts, resulting in unqualified plastic parts and increasing the scrap rate. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a plastic mould automatic taking device, which solves the problem that when the upward movement of the upper die drives the ejector rod and does not completely eject the plastic parts, the oblique push plate pushes the plastic parts under the action of the spring, which can easily cause damage to the surface of the plastic parts, resulting in unqualified plastic parts and increasing the scrap rate.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a plastic mould automatic taking device, comprising a frame, a fixed plate is connected to the bottom of the frame through bolts, a hydraulic cylinder is installed at the top of the frame, a connecting plate is connected to the output end of the hydraulic cylinder, an upper die is fixedly installed at the bottom of the connecting plate, a lower die is installed at the top of the fixed plate, a lifting plate is fixedly connected to the bottom of the connecting plate, a lifting rod is arranged on the lifting plate,

[0007] One side of the lifting plate is provided with a connecting block, a push rod is fixedly installed on the top of the connecting block, a sliding pipe is fixedly installed on the inner wall of the frame, a push block is slidably arranged in the sliding pipe, the push block is connected with the inner wall of the sliding pipe through a spring, a through hole is formed in the bottom of the sliding pipe, the through hole corresponds to and is matched with the push rod, a sliding groove is formed in the push block, and a limiting block is slidably arranged in the sliding groove.

[0008] Preferably, a sliding groove is formed in the inner side of the fixed plate, the connecting block is arranged in the sliding groove, the height of the push rod is the same as the height of the lifting rod, and the top of the sliding groove is horizontally flush with the top of the lifting rod.

[0009] Preferably, the push block is matched with the inside of the sliding pipe, the outside bottom of the sliding pipe is provided with a reinforcing rib, the sliding pipe is connected with the frame through the reinforcing rib, and the other end of the sliding pipe is provided with an opening and is attached to the upper die.

[0010] Preferably, an inclined surface is arranged on the end of the push block close to the opening of the sliding pipe.

[0011] Preferably, a spring is arranged on the top of the inner wall of the sliding groove, the spring is connected with the limiting plate, the limiting plate is matched with the sliding groove and is slidably arranged in the sliding groove, and the limiting block is fixedly installed on the bottom of the limiting plate.

[0012] The utility model provides a kind of automatic taking device of plastic mould.It has the following beneficial effects:

[0013] (1), the utility model discloses the cooperation of limiting block and through hole, so that spring is in compressed state while avoiding push block movement, after plastic part is completely lifted out, push rod pushes limiting block into sliding groove, promotes spring to lose external force restriction and restores original state to push push block, so that push block pushes plastic part and pushes out mould.

[0014] (2), the utility model discloses the spring and limiting plate, when limiting block and through hole correspond, limiting block is automatically entered into through hole by spring, and limiting hole is limited, to ensure the stability of push block position.

[0015] So as to solve the problem that when the upper die moves upwards to drive the ejector rod, the plastic part is not completely pushed out, the inclined push plate pushes the plastic part under the action of spring, which can easily cause damage to the surface of the plastic part, resulting in unqualified plastic parts and increasing the scrap rate. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the overall structure display drawing of the utility model;

[0017] Figure 2The utility model discloses Figure 1 The middle frame inner wall structure display graph is shown in the figure.

[0018] Figure 3 The utility model discloses Figure 1 The middle fixed plate structure display graph is shown in the figure.

[0019] Figure 4 The utility model discloses Figure 2 The inside structure display graph of the sliding pipe is shown in the figure.

[0020] In the figure, 1, frame, 2, fixed plate, 21, slide, 3, lower mould, 4, upper mould, 5, connecting plate, 6, lifting plate, 61, connecting block, 62, push rod, 7, hydraulic cylinder, 8, sliding pipe, 81, reinforcing rib, 82, spring one, 83, through hole, 9, push block, 91, inclined plane, 92, sliding slot, 93, spring two, 94, limiting plate, 95, limiting block. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the range of protection of the utility model.

[0022] Embodiment 1:

[0023] Please refer to Figures 1-4 A plastic mould automatic taking device, including frame 1, the bottom of frame 1 is connected with fixed plate 2 through bolt, the top of frame 1 is installed with hydraulic cylinder 7, the output end of hydraulic cylinder 7 is connected with connecting plate 5, the bottom of connecting plate 5 is fixedly installed with upper mould 4, the top of fixed plate 2 is installed with lower mould 3, the bottom of connecting plate 5 is fixedly connected with lifting plate 6, and lifting rod is arranged on lifting plate 6, one side of lifting plate 6 is provided with connecting block 61, the top of connecting block 61 is fixedly installed with push rod 62, the inner wall of frame 1 is fixedly installed with sliding pipe 8, push block 9 is slidably arranged in the inside of sliding pipe 8, push block 9 is connected with the inner wall of sliding pipe 8 through spring one 82, through hole 83 is formed in the bottom of sliding pipe 8, and through hole 83 corresponds and adapts to push rod 62, sliding slot 92 is formed in the inside of push block 9, limiting block 95 is slidably arranged in the inside of sliding slot 92, and the bottom end of limiting block 95 passes through push block 9 and is arranged in through hole 83,

[0024] The inside of fixed plate 2 is provided with slide 21, and connecting block 61 is arranged in slide 21, the height of push rod 62 is same with the height of lifting rod, and the top of slide 21 is horizontally flush with the top of lifting rod.

[0025] The push block 9 is matched with the inside of the sliding tube 8, the outside bottom of the sliding tube 8 is provided with a reinforcing rib 81, the sliding tube 8 is connected with the frame 1 through the reinforcing rib 81, and the other end of the sliding tube 8 is provided with an opening and is matched with the upper mold 4.

[0026] Specifically, when the hydraulic cylinder 7 works, the output end drives the connecting plate 5 to move upwards, so that the upper mold 4 is lifted upwards, at the same time, the lifting plate 6 fixed at the bottom of the connecting plate 5 also moves upwards, the lifting rod on the lifting plate 6 contacts the plastic part and lifts the plastic part upwards by a certain height, in the process that the lifting plate 6 moves upwards, the connecting block 61 moves upwards in the slide 21 synchronously, and the push rod 62 at the top of the connecting block 61 also rises. Since the height of the push rod 62 is the same as that of the lifting rod, when the lifting rod completely pushes the plastic part out of the mold, the push rod 62 rises to a position corresponding to the through hole 83 at the bottom of the sliding tube 8 and enters the through hole 83 and pushes the push block 9. When the limiting block 95 in the push block 9 is in the through hole 83, one end of the push block 9 compresses the spring 82, after the push rod 62 pushes the limiting block 95 into the slide groove 92, the limiting block 95 is separated from the through hole 83, so that the spring 82 loses the external force limitation and restores to the original state, the push block 9 is driven to move to the direction of the plastic part and pushes the plastic part to separate from the lower mold 3;

[0027] When the push rod 62 is not pushed, the limiting block 95 limits the movement of the push block 9, so that the spring 82 is in the compressed state; only when the push rod 62 pushes the limiting block 95 into the slide groove 92, the spring 82 can drive the push block 9 to move, so that the stability and reliability of the device are improved, the misoperation is avoided, the precise control of pushing after the plastic part is completely lifted is realized, the problem that the plastic part is pushed by the inclined push plate when the plastic part is not completely separated from the lower mold 3 is avoided, the waste rate is effectively reduced, and the quality of the plastic part is improved.

[0028] Embodiment 2

[0029] In order to increase the stability of the limiting block 95 in the through hole 83, please refer to Figures 1-4 On the basis of the embodiment 1, the end, close to the opening of the sliding tube 8, of the push block 9 is provided with an inclined surface 91.

[0030] The spring 93 is installed on the top of the inner wall of the slide groove 92, the spring 93 is connected with the limiting plate 94, the limiting plate 94 is matched with the slide groove 92 and is slidably arranged in the slide groove 92, and the limiting block 95 is fixedly installed at the bottom of the limiting plate 94.

[0031] Specifically, when the limiting block 95 is in the through hole 83, the spring 93 is in a normal state, and when the limiting block 95 needs to enter the sliding groove 92, the elastic force of the spring 93 needs to be overcome, so that the spring 93 is in a compressed state, thereby preventing the limiting block 95 from being easily displaced by external forces, and the stability of the limiting block 95 in the through hole 83 is enhanced.

[0032] The stable limiting block 95 can more accurately control the moving timing of the push block 9. During the picking process, only when the push rod 62 applies sufficient force to overcome the elastic force of the spring 93 to make the limiting block 95 enter the sliding groove 92, the push block 9 will be pushed by the spring 82 to push the plastic part, ensuring the accuracy and timeliness of the picking operation, avoiding damage to the plastic part or failure to pick up due to misoperation, and reducing the probability of equipment failure due to the shaking or accidental movement of the limiting block 95, reducing equipment maintenance and downtime, improving production efficiency and equipment reliability.

[0033] Working principle: When the device is in use, plastic raw materials are injected into the mold cavity after the mold is closed, and the plastic is cooled and solidified to form a plastic part. After injection molding is completed, the hydraulic cylinder 7 starts to work, and its output end drives the connecting plate 5 to move upward, so that the upper mold 4 is lifted upward and separated from the lower mold 3, opening the mold. After injection molding is completed, the hydraulic cylinder 7 starts to work, and its output end drives the connecting plate 5 to move upward, and the lifting rod on the lifting plate 6 will contact the plastic part and lift it upward, and the connecting block 61 in the sliding way 21 will also move upward synchronously, and the push rod 62 on the top of the connecting block 61 will also rise. When the lifting rod completely pushes the plastic part out of the mold, the push rod 62 rises to a position corresponding to the through hole 83 at the bottom of the sliding tube 8, and enters the through hole 83 and pushes the push block 9. After the limiting block 95 enters the sliding groove 92, the limiting block 95 is separated from the through hole 83, and the spring 93 is compressed. At this time, the spring 82 loses external force restriction and returns to its original state, and pushes the push block 9 to move in the direction of the plastic part and contacts the plastic part, pushing the plastic part out of the lower mold 3, completing the picking operation.

[0034] The basic principle and main features of the present application and the advantages of the present application are shown and described above. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0035] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A plastic mold automatic taking device, comprising a frame (1), the bottom of the frame (1) is connected with a fixed plate (2) through bolts, the top of the frame (1) is installed with a hydraulic cylinder (7), the output end of the hydraulic cylinder (7) is connected with a connecting plate (5), the bottom of the connecting plate (5) is fixedly installed with an upper mold (4), the top of the fixed plate (2) is installed with a lower mold (3), the bottom of the connecting plate (5) is fixedly connected with a lifting plate (6), the lifting plate (6) is provided with a lifting rod, characterized in that: One side of the lifting plate (6) is provided with a connecting block (61), the top of the connecting block (61) is fixedly installed with a push rod (62), the inner wall of the frame (1) is fixedly installed with a sliding tube (8), the inside of the sliding tube (8) is slidably provided with a push block (9), the push block (9) is connected with the inner wall of the sliding tube (8) through a spring (82), the bottom of the sliding tube (8) is provided with a through hole (83), the through hole (83) corresponds and fits with the push rod (62), the inside of the push block (9) is provided with a sliding groove (92), the inside of the sliding groove (92) is slidably provided with a limiting block (95), the bottom end of the limiting block (95) is arranged in the through hole (83) through the push block (9).

2. The automatic plastic mold part taking device according to claim 1, wherein: The inner side of the fixed plate (2) is provided with a slide (21), the connecting block (61) is arranged in the slide (21), the height of the push rod (62) is the same as the height of the lifting rod, the top of the slide (21) is horizontally flush with the top of the lifting rod.

3. The automatic plastic mold part taking device according to claim 1, wherein: The push block (9) fits with the inside of the sliding tube (8), the outside bottom of the sliding tube (8) is provided with a reinforcing rib (81), the sliding tube (8) is connected with the frame (1) through the reinforcing rib (81), the other end of the sliding tube (8) is provided with an opening and is attached to the upper mold (4).

4. The automatic plastic mold part taking device according to claim 3, wherein: The end of the push block (9) close to the opening of the sliding tube (8) is provided with an inclined surface (91).

5. The automatic plastic mold part taking device according to claim 4, wherein: The inside wall top of the sliding groove (92) is installed with a spring (93), the spring (93) is connected with a limiting plate (94) The limiting plate (94) fits with the sliding groove (92) and is slidably arranged in the sliding groove (92), The limiting block (95) is fixedly installed at the bottom of the limiting plate (94).

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