Mold for processing plastic bracket

Abstract

The utility model discloses a mold for processing a plastic bracket. The mold comprises a base, a mold closing mechanism and a cooling mechanism, supports are fixedly connected to the four corners of the upper surface of the base, a bottom plate is fixedly connected among the upper ends of the four supports, and a bottom die is placed in the upper end of the bottom plate; the mold closing mechanism is arranged at the upper end of the bottom plate, and the mold closing mechanism is matched with the bottom mold; the cooling mechanism comprises limiting grooves, protruding bags and a cooling pipeline, the limiting grooves which are evenly distributed are formed in the top wall of the bottom plate, the cooling pipeline is placed between the limiting grooves, the protruding bags which are evenly distributed are arranged on the outer arc face of the cooling pipeline and penetrate through the adjacent limiting grooves in the upper end, and the upper surfaces of the protruding bags make contact with the lower surface of the bottom die. According to the mold for machining the plastic support, rapid cooling is achieved through circulation of cooling liquid, meanwhile, the ejector pins are automatically ejected out after the mold is opened, and demolding is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic support processing, specifically to a plastic support processing mould. BACKGROUND

[0002] Plastic support is a kind of structural member widely used in industry, electronics, medical field etc., mainly used for supporting, fixing or connecting other components, and compared with metal, plastic support is lightweight, suitable for weight-sensitive scenes, and can be designed flexibly in complex shape to adapt to specific space requirements, such as disposable stents in medical devices.

[0003] Plastic support is usually formed by injection molding, molten plastic is injected into the mold, and the plastic support is ejected after cooling, which has the advantages of suitable for mass production, high precision and low cost, and the molten plastic needs to be cooled for a period of time after injection, and the plastic support is molded and ejected after cooling, and the ejector pin is usually used to eject the plastic support, and the corresponding driving mechanism is needed for the ejector pin, and the driving mechanism needs a certain response time after the mold is opened, so the ejection is slow and the processing efficiency is low, therefore, we propose a plastic support processing mould. UTILITY MODEL CONTENTS

[0004] The utility model wants to overcome the present defect, provides a kind of plastic support processing mould, and the cooling liquid is circulated and cooled quickly, and the ejector pin is automatically ejected after mold opening, and it is convenient to demould, can effectively solve the problems in background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of plastic support processing mould, including base, mold closing mechanism and cooling mechanism;

[0006] Base: its upper surface four corners are fixedly connected with support, and the upper end between four supports is fixedly connected with bottom plate, and bottom plate is placed with bottom mould in the upper end inside;

[0007] Mold closing mechanism: it is set to the upper end of bottom plate, and mold closing mechanism is cooperatively arranged with bottom mould;

[0008] Cooling mechanism: it includes limiting slot, convex capsule and cooling pipeline, the top wall of bottom plate is provided with uniformly distributed limiting slot, cooling pipeline is placed between limiting slot, the outer cam surface of cooling pipeline is provided with uniformly distributed convex capsule, and the upper surface of convex capsule is in contact with the lower surface of bottom mould, respectively, the water inlet of cooling pipeline passes through the through hole of the front side wall of bottom plate, and the water inlet of cooling pipeline is communicated with the water outlet of external circulating water pump, and the cooling liquid is circulated and cooled quickly, and the ejector pin is automatically ejected after mold opening, and it is convenient to demould.

[0009] Further, the cooling mechanism further comprises a pressing plate, the top wall of the bottom plate is fixedly connected with the pressing plate between the left and right ends, the cooling pipeline is located between the pressing plate and the limiting groove, and the cooling pipeline is fixed.

[0010] Further, the mold closing mechanism comprises a slide column, a spring one, an upper mold plate, a ejector pin and an ejector pin plate, the left and right sides of the upper mold plate are fixedly connected with the uniformly distributed slide columns, the slide columns are respectively slidably connected to the inside of the vertically adjacent through holes of the bottom plate, the lower ends of the slide columns are fixedly connected with the ejector pin plate, the middle part of the ejector pin plate is fixedly connected with the uniformly distributed ejector pins, the groove walls of the limiting grooves are provided with the uniformly distributed ejector pin holes, the upper ends of the ejector pins are respectively slidably connected to the inside of the vertically adjacent ejector pin holes, the lower ends of the slide columns are movably sleeved with the spring one, and the spring one is located between the ejector pin plate and the bottom plate, so that automatic demolding is realized.

[0011] Further, the mold closing mechanism further comprises a limiting plate, the limiting plate is fixedly connected between the brackets on the same side, the upper ends of the limiting plate are in contact with the lower surface of the ejector pin plate, and the movement range of the ejector pin plate is limited.

[0012] Further, the self-locking mechanism further comprises a cover, a clamping seat, a clamping groove and a connecting bolt, the left and right sides of the bottom plate are provided with the front and rear symmetrically distributed clamping grooves, the inside of the clamping groove is slidably connected with the clamping seat, the upper end of the clamping seat is threadedly connected with the connecting bolt, the outside of the clamping groove is fixedly connected with the cover, the middle part of the cover is provided with the avoiding hole, the rear end of the clamping seat is provided with the extension column, and the extension column is slidably connected to the inside of the avoiding hole of the adjacent cover, so that self-locking is realized.

[0013] Further, the self-locking mechanism further comprises a spring two, the outside of the extension column is movably sleeved with the spring two, and the spring two is located between the adjacent cover and the clamping seat, so that the clamping seat is automatically reset.

[0014] Further, the self-locking mechanism further comprises a handle, the upper ends of the connecting bolts on the same side are fixedly connected with the handle, and the connecting bolt is convenient to pull.

[0015] Compared with the prior art, the mold for the plastic support has the following advantages:

[0016] The cooling liquid flows in the s-shaped distribution cooling pipeline to take away the heat of the bottom mold, meanwhile, the convex capsules increase the contact area between the cooling liquid and the bottom mold, and the mold opening of the upper mold plate after the cooling of the plastic support after injection molding is accelerated to a certain position to drive the ejector pins to be ejected, the ejector pins are automatically ejected from the plastic support, and demolding is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses a structure schematic diagram;

[0018] Figure 2 The structure schematic diagram after the mold is opened of the utility model;

[0019] Figure 3 The structure schematic diagram of the utility model is enlarged at A place;

[0020] Figure 4 The structure schematic diagram of the utility model is exploded at the bottom plate;

[0021] Figure 5 The structure schematic diagram of the utility model is the structure schematic diagram of the clamping seat;

[0022] Figure 6 The structure schematic diagram of the utility model is the structure schematic diagram of the bottom mold.

[0023] In the figure: 1 base, 2 bottom plate, 3 bottom mold, 4 mold closing mechanism, 41 slide column, 42 spring one, 43 limit plate, 44 upper mold plate, 45 thimble, 46 thimble plate, 5 self-locking mechanism, 51 cover, 52 handle, 53 clamping seat, 54 spring two, 55 clamping groove, 56 connecting bolt, 6 cooling mechanism, 61 limit groove, 62 convex bag, 63 cooling pipeline, 64 pressing plate, 7 extension column. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a mold for plastic support processing, including base 1, mold closing mechanism 4 and cooling mechanism 6;

[0026] Base 1: the upper surface of which is fixedly connected with support at four corners, and the upper end of the four supports is fixedly connected with bottom plate 2, and bottom mold 3 is placed in the upper end of bottom plate 2;

[0027] The clamping mechanism 4 is arranged at the upper end of the bottom plate 2, and is arranged in cooperation with the bottom die 3. The clamping mechanism 4 comprises slide posts 41, springs 42, an upper die plate 44, ejector pins 45 and an ejector pin plate 46. The left and right sides of the upper die plate 44 are fixedly connected with uniformly distributed slide posts 41. The slide posts 41 are respectively and slidably connected in the interior of vertically adjacent through holes of the bottom plate 2. The lower ends of the slide posts 41 are fixedly connected with the ejector pin plate 46. The middle part of the ejector pin plate 46 is fixedly connected with uniformly distributed ejector pins 45. The groove walls of the limiting grooves 61 are provided with uniformly distributed ejector pin holes. The upper ends of the ejector pins 45 are respectively and slidably connected in the interior of vertically adjacent ejector pin holes. The lower ends of the slide posts 41 are movably sleeved with springs 42. The springs 42 are located between the ejector pin plate 46 and the bottom plate 2. The clamping mechanism 4 further comprises limiting plates 43. The limiting plates 43 are fixedly connected between the brackets on the same side. The upper ends of the limiting plates 43 are respectively in contact with the lower surfaces of the ejector pin plate 46. The pressing plate 64 avoids that the cooling pipeline 63 is separated from the limiting groove 61. When the mold is opened, the displacement mechanism of the injection molding machine drives the upper die plate 44 to be separated from the bottom die 3. The slide posts 41 are lifted, and the springs 42 are compressed. After the slide posts 41 are lifted to a certain height, the ejector pins 45 and the ejector pin plate 46 are lifted. The ejector pins 45 push out the plastic brackets, and rapid demolding is realized.

[0028] The cooling mechanism 6 comprises limiting grooves 61, convex capsules 62 and cooling pipelines 63. The top wall of the bottom plate 2 is provided with uniformly distributed limiting grooves 61. The limiting grooves 61 are placed with the cooling pipelines 63 therebetween. The outer curved surfaces of the cooling pipelines 63 are provided with uniformly distributed convex capsules 62. The convex capsules 62 respectively pass through adjacent limiting grooves 61 at the upper end. The upper surfaces of the convex capsules 62 are respectively in contact with the lower surface of the bottom die 3. The water inlet of the cooling pipeline 63 passes through the through hole of the front side wall of the bottom plate 2. The water inlet of the cooling pipeline 63 is in communication with the water outlet of the external circulating water pump. The cooling mechanism 6 further comprises a pressing plate 64. The pressing plate 64 is fixedly connected between the left and right ends of the top wall of the bottom plate 2. The cooling pipeline 63 is located between the pressing plate 64 and the limiting groove 61. The external circulating water pump sends the cooling liquid into the cooling pipeline 63. The cooling pipeline 63 is distributed in an s shape between the limiting grooves 61, so as to increase the cooling area. Meanwhile, the convex capsules 62 increase the contact area with the lower surface of the bottom die 3, so as to realize rapid cooling of the bottom die 3.

[0029] Wherein: still includes self-locking mechanism 5, self-locking mechanism 5 includes cover 51, card seat 53, card slot 55 and connecting bolt 56, the left and right sides of bottom plate 2 are all provided with symmetrically distributed card slot 55, the inside of card slot 55 is all slidably connected with card seat 53, the upper end of card seat 53 is all threadedly connected with connecting bolt 56, the outside of card slot 55 is all fixedly connected with cover 51, the middle part of cover 51 is all provided with avoiding hole, the rear end of card seat 53 is all provided with extension column 7, card extension column 7 is slidably connected in the inside of avoiding hole of adjacent cover 51 respectively, self-locking mechanism 5 still includes spring two 54, the outside of extension column 7 is movably sleeved with spring two 54, spring two 54 is located between adjacent cover 51 and card seat 53 respectively, self-locking mechanism 5 still includes handle 52, the upper end between the connecting bolt 56 of left and right same side is all fixedly connected with handle 52, when needing to replace mould, pull handle 52, the two connecting bolt 56 of same side is pulled outwards, card seat 53 slides to the outside in the inside of adjacent card slot 55, the front end of card seat 53 is separated from bottom die 3, spring two 54 is compressed, take out bottom die 3, replace new bottom die 3, spring two 54 resets, promote card seat 53 reset, new bottom die 3 is clamped between card seat 53, and replacement is completed.

[0030] The working principle of the plastic support machining mold is as follows: the plastic support machining mold is installed in the injection molding machine, the upper mold plate 44 injects the glue, the glue is molded into a plastic support in the bottom die 3, the external circulating water pump sends the cooling liquid into the cooling pipeline 63, the cooling pipeline 63 is distributed in an s shape between the limiting grooves 61, the cooling area is increased, the convex capsules 62 increase the contact area with the lower surface of the bottom die 3, the bottom die 3 is quickly cooled, and the pressing plate 64 prevents the cooling pipeline 63 from being separated from the limiting grooves 61. When the mold is opened, the displacement mechanism of the injection molding machine drives the upper mold plate 44 to be separated from the bottom die 3, the slide column 41 rises, the spring one 42 is compressed, the slide column 41 rises to a certain height and drives the ejector pin 45 and the ejector pin plate 46 to move upwards, the ejector pin 45 ejects the plastic support, and rapid mold opening is realized. When the mold is closed, the slide column 41 descends, the spring one 42 resets, the ejector pin 45 and the ejector pin plate 46 move downwards, the limiting plate 43 limits the downward movement range of the ejector pin plate 46, and the ejector pin 45 is prevented from being separated from the ejector pin hole. When the mold needs to be replaced, the handle 52 is pulled, the two connecting bolts 56 of the same side are pulled outwards, the card seat 53 slides to the outside in the inside of the adjacent card slot 55, the front end of the card seat 53 is separated from the bottom die 3, the spring two 54 is compressed, the bottom die 3 is taken out, a new bottom die 3 is replaced, the spring two 54 resets, the card seat 53 resets, and the new bottom die 3 is clamped between the card seat 53, and the replacement is completed.

[0031] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A mold for processing a plastic stent, characterized by: It includes base (1), mold closing mechanism (4) and cooling mechanism (6); The upper surface of the base (1) is fixedly connected with supports at four corners, the upper ends of the four supports are fixedly connected with a bottom plate (2), and the inside of the upper end of the bottom plate (2) is placed with a bottom mold (3); The mold closing mechanism (4) is arranged at the upper end of the bottom plate (2) and is arranged in cooperation with the bottom mold (3); The cooling mechanism (6) includes limiting grooves (61), convex capsules (62) and cooling pipelines (63), the top wall of the bottom plate (2) is provided with uniformly distributed limiting grooves (61), the cooling pipelines (63) are placed between the limiting grooves (61), the outer arc surface of the cooling pipeline (63) is provided with uniformly distributed convex capsules (62), the convex capsules (62) respectively pass through the adjacent limiting grooves (61) at the upper end, the upper surfaces of the convex capsules (62) are in contact with the lower surface of the bottom mold (3), the water inlet of the cooling pipeline (63) passes through the through hole of the front side wall of the bottom plate (2), and the water inlet of the cooling pipeline (63) is in communication with the water outlet of the external circulating water pump.

2. A mold for processing a plastic holder according to claim 1, characterized in that: The cooling mechanism (6) further includes a pressing plate (64), the top wall of the bottom plate (2) is fixedly connected with the pressing plate (64) between the left and right ends, and the cooling pipeline (63) is located between the pressing plate (64) and the limiting groove (61).

3. A mold for processing a plastic holder according to claim 1, characterized in that: The mold closing mechanism (4) includes slide columns (41), springs (42), an upper mold plate (44), ejector pins (45) and an ejector pin plate (46), the left and right sides of the upper mold plate (44) are fixedly connected with uniformly distributed slide columns (41), the slide columns (41) are respectively and slidably connected to the inside of the vertically adjacent through holes of the bottom plate (2), the lower ends of the slide columns (41) are fixedly connected with the ejector pin plate (46), the middle part of the ejector pin plate (46) is fixedly connected with uniformly distributed ejector pins (45), the groove walls of the limiting grooves (61) are provided with uniformly distributed ejector pin holes, the upper ends of the ejector pins (45) are respectively and slidably connected to the inside of the vertically adjacent ejector pin holes, the lower ends of the slide columns (41) are movably sleeved with springs (42), and the springs (42) are located between the ejector pin plate (46) and the bottom plate (2).

4. A mold for processing a plastic holder according to claim 3, characterized in that: The mold closing mechanism (4) further includes a limiting plate (43), the limiting plate (43) is fixedly connected between the supports on the same side of the left and right sides, and the upper ends of the limiting plate (43) are in contact with the lower surfaces of the ejector pin plate (46).

5. The mold for processing a plastic holder according to claim 1, wherein: It further includes a self-locking mechanism (5), the self-locking mechanism (5) includes covers (51), clamping seats (53), clamping grooves (55) and connecting bolts (56), the left and right sides of the bottom plate (2) are provided with front and rear symmetrically distributed clamping grooves (55), the inside of the clamping groove (55) is slidably connected with a clamping seat (53), the upper end of the clamping seat (53) is threadedly connected with a connecting bolt (56), the outer side of the clamping groove (55) is fixedly connected with a cover (51), the middle part of the cover (51) is provided with an avoiding hole, and the rear end of the clamping seat (53) is provided with an extension column (7), and the extension column (7) is respectively and slidably connected to the inside of the avoiding hole of the adjacent cover (51).

6. A mold for processing a plastic holder according to claim 5, characterized in that: The self-locking mechanism (5) further comprises a spring two (54), the outer part of the extension column (7) is movably sleeved with the spring two (54), and the spring two (54) is located between the adjacent cover (51) and the clamping seat (53) respectively.

7. A mold for processing a plastic holder according to claim 5, characterized in that: The self-locking mechanism (5) further comprises a handle (52), and the upper ends of the left and right same side connecting bolts (56) are fixedly connected with the handle (52).

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