CN217293344U

CN217293344U - Plastic mould thimble exhaust structure

Info

Publication number: CN217293344U
Application number: CN202221028963.9U
Authority: CN
Inventors: 张焕喜
Original assignee: Daxi Technology Shenzhen Ltd Co
Current assignee: Daxi Technology Shenzhen Ltd Co
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-26
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a plastic mould thimble exhaust structure, including mould body and the die cavity of setting on the mould body lateral wall, one side that the die cavity was kept away from to the mould body is equipped with puts the thing groove, it is equipped with the exhaust hole to put between thing groove and the die cavity, the both sides of mould body all are equipped with and exhaust communicating venthole in hole, it is equipped with the ejector pin to slide to insert in the exhaust hole, one side that the die cavity was kept away from to the mould body is equipped with puts the thing groove, sliding connection has the movable plate on putting the inner wall in thing groove, the one end that the die cavity was kept away from to the ejector pin runs through the exhaust hole and with movable plate fixed connection, one side sliding plug that the ejector pin was kept away from to the movable plate is inserted and is equipped with a plurality of slide bars, the one end of slide bar runs through the movable plate and with put the inner wall fixed connection in thing groove. The utility model discloses a setting in ejector pin, spring, venthole and exhaust hole for the operation of exhausting automatically after the die cavity internal gas pressure reaches certain numerical value, and the difficult jam in exhaust hole has good use prospect.

Description

Plastic mould thimble exhaust structure

Technical Field

The utility model relates to an exhaust technical field especially relates to a plastic mould thimble exhaust structure.

Background

The plastic mold is also called as an injection mold, molten plastic is injected into a cavity formed by assembling the mold, and a required product can be obtained after cooling molding, so that the plastic mold is suitable for mass production of plastic parts. The plastic mold production part mainly comprises five steps of mold closing, injection, cooling, mold opening and ejection, in the injection molding process, gas exists in a mold cavity more or less, and the mold needs to be exhausted in order to prevent defects of poor product filling, poor appearance, bubbles and the like.

Traditional mould passes through the exhaust hole as main exhaust means, but in the use, the melt of mould intracavity is glued and is blockked up the exhaust hole easily, and the work of exhausting can't normally work, leads to the production quality of product to receive the influence.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the molten rubber in the die cavity easily blocks up the exhaust hole, the exhaust work can not normally work, the production quality of products is influenced, and the provided plastic die ejector pin exhaust structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a plastic mould thimble exhaust structure comprises a mould body and a mould cavity arranged on the side wall of the mould body, wherein one side of the mould body, which is far away from the mould cavity, is provided with a storage groove, an exhaust hole is arranged between the storage groove and the mould cavity, both sides of the mould body are provided with air outlet holes communicated with the exhaust hole, a mandril is inserted in the exhaust hole in a sliding way, one side of the mould body, which is far away from the mould cavity, is provided with the storage groove, the inner wall of the storage groove is connected with a movable plate in a sliding way, one end of the mandril, which is far away from the mould cavity, penetrates through the exhaust hole and is fixedly connected with the movable plate, one side of the movable plate, which is far away from the mandril, is inserted with a plurality of slide bars in a sliding way, one end of each slide bar penetrates through the movable plate and is fixedly connected with the inner wall of the storage groove, a spring is sleeved on the slide bar, one side of the movable plate, which is far away from the mandril, is provided with a connecting plate, and two ends of the spring respectively abut against the movable plate and the connecting plate, the connecting plate with put for sliding connection between the thing groove, the both ends of connecting plate all are equipped with the slot, sliding connection has the fixture block on the inner wall of slot, be equipped with the draw-in groove corresponding with the fixture block on putting the inner wall of thing groove, the one end of fixture block runs through the slot and extends to in the draw-in groove, the other end of fixture block is equipped with adjustment mechanism.

Preferably, the adjusting mechanism comprises a screw rod inserted into one end of the clamping block far away from the clamping groove, the screw rod is in threaded connection with the clamping block, one end of the screw rod far away from the clamping block is rotatably connected with the inner wall of the slot, a worm wheel is fixedly sleeved at one end of the screw rod far away from the clamping block, a worm meshed with the worm wheel is arranged in the storage groove, one end of the worm is rotatably connected with the inner wall of the slot, the other end of the worm penetrates through the connecting plate, and the worm is rotatably connected with the connecting plate.

Preferably, both ends of the moving plate are provided with grooves, rollers are arranged in the grooves, the rollers partially penetrate through the grooves, fixing rods are rotatably connected in the rollers, and both ends of each fixing rod penetrate through the rollers and are fixedly connected with the opposite side walls in the grooves.

Preferably, the side wall of the clamping block is fixedly connected with a limiting block, the inner wall of the slot is provided with a limiting groove corresponding to the limiting block, and one end of the limiting block slides and extends into the limiting groove.

Preferably, a pull ring is fixedly connected to one side of the connecting plate, which is far away from the moving plate.

Preferably, a dust screen is fixedly embedded in the air outlet.

Has the advantages that:

1. when the air pressure in the die cavity reaches a certain value, the air enters the exhaust holes and pushes the ejector rods to move towards the inner direction of the object placing groove, the ejector rods drive the movable plate to move, the movable plate can drive the rollers to roll when moving, the resistance of the movable plate during moving is reduced through the rollers, the springs can be compressed when moving, when one end of the ejector rods, far away from the movable plate, passes through the air outlet holes, the air is discharged outwards through the air outlet holes, when the air is discharged, the air pressure in the die cavity is reduced, at the moment, the movable plate is pushed to move to reset through the elasticity of the springs, and the ejector rods are driven by the movable plate to move to reset, so that molten glue is prevented from entering the exhaust holes;

2. the spring is after using repeatedly, elasticity reduces, need change, and at this moment, it rotates the worm and drives the worm wheel and rotate, drives the screw rod through the worm wheel and rotates, and the screw rod drives the fixture block through thread engagement's effect and breaks away from in the draw-in groove, then takes the connecting plate out from putting the thing inslot, alright take off the spring and change, the utility model discloses a setting in ejector pin, spring, venthole and exhaust hole for the automatic operation of exhausting after die cavity internal gas pressure reaches certain numerical value, and the difficult jam in exhaust hole has good use prospect.

Drawings

Fig. 1 is a schematic structural view of an ejector pin exhaust structure of a plastic mold according to the present invention;

FIG. 2 is a schematic view of an internal structure of a connecting plate of an ejector pin exhaust structure of a plastic mold according to the present invention;

fig. 3 is the utility model provides a plastic mould thimble exhaust structure's a department structure sketch map.

In the figure: 1-a mould body, 2-a dustproof net, 3-a top rod, 4-a moving plate, 5-a connecting plate, 6-a sliding rod, 7-a pull ring, 8-a spring, 9-a fixture block, 10-a worm, 11-a worm wheel, 12-a screw, 13-a limiting block, 14-a roller and 15-a fixed rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an ejector pin exhaust structure of a plastic mold comprises a mold body 1 and a mold cavity arranged on the side wall of the mold body 1, wherein a storage groove is arranged on one side of the mold body 1 away from the mold cavity, an exhaust hole is arranged between the storage groove and the mold cavity and used for being matched with an exhaust hole to exhaust air, the two sides of the mold body 1 are respectively provided with an exhaust hole communicated with the exhaust hole, and a dustproof net 2 is fixedly embedded in the exhaust hole;

in the embodiment, the ejector rod 3 is inserted in the exhaust hole in a sliding manner and used for preventing molten rubber from entering the exhaust hole, a storage groove is formed in one side, away from the mold cavity, of the mold body 1, a moving plate 4 is connected to the inner wall of the storage groove in a sliding manner and used for driving the ejector rod 3 to move and reset, one end, away from the mold cavity, of the ejector rod 3 penetrates through the exhaust hole and is fixedly connected with the moving plate 4, grooves are formed in two ends of the moving plate 4, rollers 14 are arranged in the grooves and used for reducing resistance when the moving plate 4 moves, the parts of the rollers 14 penetrate through the grooves, fixing rods 15 are rotatably connected to the rollers 14 and used for preventing the rollers 14 from loosening, and two ends of each fixing rod 15 penetrate through the rollers 14 and are fixedly connected with the corresponding side wall in each groove;

in the embodiment, a plurality of sliding rods 6 are slidably inserted into one side of the moving plate 4, which is away from the ejector rod 3, and are used for improving the stability of the moving plate 4 during moving, one ends of the sliding rods 6 penetrate through the moving plate 4 and are fixedly connected with the inner wall of the object placing groove, springs 8 are sleeved on the sliding rods 6, a connecting plate 5 is arranged on one side of the moving plate 4, which is away from the ejector rod 3, and is used for preventing the springs 8 from loosening, two ends of the springs 8 respectively abut against the moving plate 4 and the connecting plate 5, and a pull ring 7 is fixedly connected to one side of the connecting plate 5, which is away from the moving plate 4, and is used for facilitating a user to take out the connecting plate 5;

in the embodiment, the connecting plate 5 is in sliding connection with the object placing groove, the two ends of the connecting plate 5 are provided with slots, the inner wall of each slot is connected with a clamping block 9 in a sliding manner and used for preventing the connecting plate 5 from loosening, the inner wall of the object placing groove is provided with a clamping groove corresponding to the clamping block 9, one end of each clamping block 9 penetrates through each slot and extends into each clamping groove, the side wall of each clamping block 9 is fixedly connected with a limiting block 13, each clamping block 9 can drive the limiting block 13 to move when moving, the stability of the clamping blocks 9 during moving is improved through the limiting blocks 13, the inner wall of each slot is provided with a limiting groove corresponding to the limiting block 13, and one end of each limiting block 13 extends into the limiting groove in a sliding manner;

in this embodiment, an adjusting mechanism is arranged at the other end of the clamping block 9, the adjusting mechanism includes a screw 12 inserted into one end of the clamping block 9, which is far away from the clamping groove, and used for driving the clamping block 9 to move, the screw 12 is in threaded connection with the clamping block 9, one end of the screw 12, which is far away from the clamping block 9, is rotatably connected with the inner wall of the slot, a worm wheel 11 is fixedly sleeved at one end of the screw 12, which is far away from the clamping block 9, and used for driving the screw 12 to rotate, a worm 10 meshed with the worm wheel 11 is arranged in the storage groove and used for driving the worm wheel 11 to rotate, one end of the worm 10 is rotatably connected with the inner wall of the slot, the other end of the worm 10 penetrates through the connecting plate 5, and the worm 10 is rotatably connected with the connecting plate 5;

in the embodiment, when the air pressure in the target mold cavity reaches a certain value, the air enters the exhaust hole and pushes the ejector rod 3 to move towards the direction of the object placing groove, the moving plate 4 is driven to move by the ejector rod 3, the roller 14 is driven to roll when the moving plate 4 moves, the resistance of the moving plate 4 in moving is reduced by the roller 14, the spring 8 is compressed when the moving plate 4 moves, when one end of the ejector rod 3, far away from the moving plate 4, passes through the air outlet hole, the air is discharged outwards by the air outlet hole, when the air is discharged, the air pressure in the mold cavity is reduced, at the moment, the moving plate 4 is pushed to move and reset by the elasticity of the spring 8, the ejector rod 3 is driven by the moving plate 4 to move and reset, and the molten glue is prevented from entering the exhaust hole; spring 8 is after using repeatedly, elasticity reduces, need change, and at this moment, it rotates worm 10 and drives worm wheel 11 and rotate, drives screw rod 12 through worm wheel 11 and rotates, and screw rod 12 drives fixture block 9 through thread engagement's effect and breaks away from in the draw-in groove, then takes connecting plate 5 out from putting the thing inslot, alright take off spring 8 and change, the utility model discloses a setting of ejector pin, spring, venthole and exhaust hole for the operation of exhausting automatically after the die cavity internal gas pressure reaches certain numerical value, and the difficult jam in exhaust hole has good use prospect.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a plastic mould thimble exhaust structure, includes mould body (1) and sets up the die cavity on mould body (1) lateral wall, its characterized in that: one side of the die body (1) far away from the die cavity is provided with a storage groove, an exhaust hole is formed between the storage groove and the die cavity, both sides of the die body (1) are provided with air outlet holes communicated with the exhaust hole, an ejector rod (3) is inserted in the exhaust hole in a sliding manner, one side of the die body (1) far away from the die cavity is provided with a storage groove, the inner wall of the storage groove is connected with a movable plate (4) in a sliding manner, one end of the ejector rod (3) far away from the die cavity penetrates through the exhaust hole and is fixedly connected with the movable plate (4), one side of the movable plate (4) far away from the ejector rod (3) is inserted with a plurality of sliding rods (6) in a sliding manner, one end of each sliding rod (6) penetrates through the movable plate (4) and is fixedly connected with the inner wall of the storage groove, a spring (8) is sleeved on each sliding rod (6), one side of the movable plate (4) far away from the ejector rod (3) is provided with a connecting plate (5), the two ends of the spring (8) are respectively abutted against the movable plate (4) and the connecting plate (5), the connecting plate (5) is connected with the object placing groove in a sliding mode, the two ends of the connecting plate (5) are respectively provided with an inserting groove, a clamping block (9) is connected to the inner wall of the inserting groove in a sliding mode, a clamping groove corresponding to the clamping block (9) is formed in the inner wall of the object placing groove, one end of the clamping block (9) penetrates through the inserting groove and extends into the clamping groove, and an adjusting mechanism is arranged at the other end of the clamping block (9).

2. The plastic mold ejector pin exhaust structure of claim 1, wherein: adjustment mechanism is including inserting screw rod (12) of establishing in fixture block (9) and keeping away from draw-in groove one end, be threaded connection between screw rod (12) and fixture block (9), the one end that fixture block (9) were kept away from in screw rod (12) is rotated with the inner wall of slot and is connected, the fixed cover of the one end that fixture block (9) were kept away from in screw rod (12) has connect worm wheel (11), it is equipped with worm (10) with worm wheel (11) engaged with to put the thing inslot, the one end of worm (10) is rotated with the inner wall of slot and is connected, the other end of worm (10) runs through connecting plate (5), be connected for rotating between worm (10) and connecting plate (5).

3. The plastic mold ejector pin exhaust structure of claim 1, wherein: the two ends of the moving plate (4) are provided with grooves, rollers (14) are arranged in the grooves, the parts of the rollers (14) penetrate through the grooves, fixing rods (15) are rotatably connected in the rollers (14), and the two ends of each fixing rod (15) penetrate through the rollers (14) and are fixedly connected with the opposite side walls in the grooves.

4. The plastic mold ejector pin exhaust structure of claim 1, wherein: the fixture structure is characterized in that a limiting block (13) is fixedly connected to the side wall of the fixture block (9), a limiting groove corresponding to the limiting block (13) is formed in the inner wall of the slot, and one end of the limiting block (13) slides and extends into the limiting groove.

5. The plastic mold ejector pin exhaust structure of claim 1, wherein: and one side of the connecting plate (5) far away from the moving plate (4) is fixedly connected with a pull ring (7).

6. The ejector pin exhaust structure of a plastic mold according to claim 1, wherein: and a dust screen (2) is fixedly embedded in the air outlet.