CN115320040A

CN115320040A - Quick demoulding structure for injection molding machine

Info

Publication number: CN115320040A
Application number: CN202210999776.3A
Authority: CN
Inventors: 茅金娣
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-11-11

Abstract

The invention discloses a quick demoulding structure for an injection molding machine, and belongs to the field of injection molding machines. The utility model provides a quick demoulding structure that injection molding machine was used, includes fixed plate and the terrace die of fixed mounting on the injection molding machine, still includes: the first telescopic equipment is fixedly arranged on the outer wall of the fixed plate, wherein a device plate is fixedly connected with the telescopic end of the first telescopic equipment, a female die is arranged on the device plate through an automatic dumping mechanism, and an injection molding cavity is arranged on the female die; the injection molding device comprises a fixing plate, a circular groove and a circular top plate, wherein the circular groove is formed in the inner wall of the injection molding cavity, the circular top plate is matched with the circular groove, a push rod facing the fixing plate is fixedly connected to the side wall of the circular top plate, and a circular hole matched with the push rod is formed in the inner wall of the circular groove; the invention can enable the injection molding cavity of the female die to be arranged in a downward inclined mode and can blow air into the injection molding cavity, so that a product is not easy to clamp in the injection molding cavity, and the product demolding efficiency is improved.

Description

Quick demoulding structure for injection molding machine

Technical Field

The invention relates to the technical field of injection molding machines, in particular to a quick demoulding structure for an injection molding machine.

Background

An injection molding machine is also known as an injection molding machine or an injection machine. It is a main forming equipment for making various shaped plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming mould. The device is divided into a vertical type, a horizontal type and a full-electric type. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

In the use of the horizontal injection molding machine, after a product in the female die is cooled and shaped, the female die is separated from the male die through the telescopic equipment, and then the product in the female die is ejected through the ejector rod.

Disclosure of Invention

The invention aims to solve the problem that in the prior art, a product is easy to clamp when being ejected out of a female die to influence the demolding efficiency, and provides a quick demolding structure for an injection molding machine.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a quick demoulding structure that injection molding machine was used, includes fixed plate and the terrace die of fixed mounting on the injection molding machine, still includes: the first telescopic equipment is fixedly arranged on the outer wall of the fixed plate, wherein a device plate is fixedly connected with the telescopic end of the first telescopic equipment, a female die is arranged on the device plate through an automatic dumping mechanism, and an injection molding cavity is arranged on the female die; the inner wall of the injection molding cavity is provided with a circular groove, wherein the circular groove is internally provided with a circular top plate matched with the circular groove, the side wall of the circular top plate is fixedly connected with a push rod towards a fixed plate, the inner wall of the circular groove is provided with a round hole matched with the push rod, the fixed plate is provided with a jacking assembly matched with the push rod, and the side wall of the device plate is provided with a strip-shaped groove matched with the push rod.

In order to drive the female die to dump a product in the injection molding cavity, preferably, the automatic dumping mechanism comprises a fixed seat fixedly connected to the side wall of the lower end of the female die, wherein a rotating shaft is fixedly connected to the fixed seat, the rotating shaft is rotatably connected to the lower end of a device plate, a worm wheel is fixedly mounted at the shaft end of the rotating shaft, the lower end of the device plate is rotatably connected with a rotating rod through a support, and a worm meshed with the worm wheel is fixedly connected to the rotating rod; still fixed mounting has driven gear on the bull stick, fixedly connected with and driven gear complex spur rack on the fixed plate.

In order to eject out a product in the injection molding cavity, preferably, the jacking assembly comprises an arc-shaped plate fixedly connected to the fixing plate, the outer wall of the push rod is fixedly connected with a limiting plate, and the limiting plate is elastically connected with the outer wall of the female die through a first spring.

In order to blow the drawing of patterns to the intracavity of moulding plastics, furtherly, be equipped with the gas storage chamber in the circular roof, the axle head of circular roof is equipped with a plurality of evenly distributed gas holes, wherein, be equipped with in the gas storage chamber with the inclined hole of a plurality of gas hole intercommunications, it is a plurality of equal sliding connection has the plunger in the gas hole, the plunger is corresponding with the position of inclined hole, the inner wall fixed mounting in gas hole has the flexible equipment of second, plunger fixed connection is at the flexible end of the flexible equipment of second.

In order to carry out the air feed to the gas storage chamber automatically, further, the end of push rod is equipped with the slide opening, sliding connection has the piston in the slide opening, wherein, through second spring elastic connection between the inner wall of piston and slide opening, fixedly connected with is towards the stock of arc on the piston, fixedly connected with and the first trachea and the first exhaust pipe of slide opening intercommunication on the push rod, equal fixed mounting has the check valve in first trachea and the first exhaust pipe, the end of first trachea extends to in the gas storage chamber.

In order to drive the circular top plate to shake and demould, furthermore, a pulley is installed at the tail end of the long rod, and a plurality of uniformly distributed cambered surface convex blocks are fixedly connected to the cambered plate.

In order to drive the circular top plate to swing and demould, furthermore, a plurality of arc-shaped racks which are uniformly distributed are fixedly connected onto the arc-shaped plate, and a driven gear matched with the arc-shaped racks is fixedly installed on the outer wall of the tail end of the long rod.

For further heat dissipation to the die, furtherly, fixed mounting has curved shape cooling tube in the die, the one end fixedly connected with of curved shape cooling tube extends to the intake pipe of die outer wall, be equipped with the subassembly of breathing in of being connected with the curved shape cooling tube other end between device board and the die.

In order to automatically perform air suction and heat dissipation on the female die, furthermore, the air suction assembly comprises a telescopic air bag fixedly installed between the device plate and the outer wall of the female die, wherein a second air suction pipe and a second exhaust pipe which are communicated with the telescopic air bag are fixedly connected to the telescopic air bag, check valves are installed in the second air suction pipe and the second exhaust pipe, and the second air suction pipe is fixedly connected and communicated with one end of the curved heat dissipation pipe.

In order to make the operation more simple and convenient, furthermore, first telescopic equipment and second telescopic equipment are electric telescopic handle.

Compared with the prior art, the invention provides a quick demoulding structure for an injection moulding machine, which has the following beneficial effects:

1. according to the rapid demoulding structure for the injection molding machine, the spur rack drives the driven gear and the rotating rod to rotate, the rotating rod drives the rotating shaft and the female die to rotate clockwise, so that an injection molding cavity of the female die is inclined downwards, and a product in the injection molding cavity can be subjected to downward tilting force, so that the product demoulding efficiency is improved;

2. according to the rapid demoulding structure for the injection molding machine, when the push rod moves towards the arc-shaped plate, compressed air in the air storage cavity can be conveyed to the air blowing hole, the air blowing hole can blow air in the injection molding cavity, so that a gap is formed between a product and the inner wall of the injection molding cavity, the product is not easy to be clamped in the injection molding cavity, the product can be further cooled, and the demoulding efficiency of the product can be further improved;

3. according to the rapid demoulding structure for the injection molding machine, when the pulley passes through the plurality of cambered surface bumps, the long rod can shake in a reciprocating manner, so that the push rod and the circular top plate at the tail end are driven to shake, a product is not easy to be clamped in an injection molding cavity, and the product ejecting efficiency of the circular top plate, namely the demoulding efficiency, can be improved;

4. according to the rapid demoulding structure for the injection molding machine, when the driven gear passes through the plurality of arc-shaped racks, the push rod can drive the circular top plate to rotate in a reciprocating manner, and the circular top plate can drive a jacked product to swing in a reciprocating manner in the injection molding cavity, so that the product is not easy to clamp in the injection molding cavity, and the demoulding efficiency of the product can be further improved;

5. this quick demoulding structure that injection molding machine was used, stretch flexible gasbag through the die, flexible gasbag then can breathe in curved shape cooling tube through the second breathing pipe, and curved shape cooling tube then can absorb the outside air through the intake pipe to further heat dissipation to the die, can make the product of the intracavity of moulding plastics obtain further heat dissipation, the product then can the grow with the clearance of the intracavity of moulding plastics, can the indirectness promote the drawing of patterns efficiency of product.

Drawings

Fig. 1 is a first schematic diagram of an axial structure of a rapid demoulding structure for an injection molding machine according to the present invention;

FIG. 2 is a schematic axial view of a second embodiment of a rapid demolding structure for an injection molding machine according to the present invention;

FIG. 3 is a sectional view of a rapid mold release structure for an injection molding machine according to the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 1 illustrating a quick release structure for an injection molding machine according to the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 3 illustrating a quick release structure for an injection molding machine according to the present invention;

fig. 6 is an enlarged view of a portion C in fig. 3 of a quick release structure for an injection molding machine according to the present invention.

In the figure: 1. a fixing plate; 2. a male die; 3. a first telescopic device; 4. a female die; 5. an injection molding cavity; 6. a mounting plate; 7. a fixed seat; 8. a rotating shaft; 9. straight rack; 10. a worm gear; 11. a rotating rod; 12. a support; 13. a driven gear; 14. a worm; 15. a circular groove; 16. a circular top plate; 17. a push rod; 18. a limiting plate; 19. a first spring; 20. a slide hole; 21. a long rod; 22. a piston; 23. a second spring; 24. a first exhaust pipe; 25. a first inhalation tube; 26. an arc-shaped plate; 27. a pulley; 28. a cambered surface bump; 29. a driven gear; 30. an arc-shaped rack; 31. a strip-shaped groove; 32. a telescopic air bag; 33. a curved radiating pipe; 34. an air inlet pipe; 35. a second suction duct; 36. a second exhaust pipe; 37. a gas storage cavity; 38. a gas blowing hole; 39. a plunger; 40. a second telescopic device; 41. an inclined hole; 42. a circular hole.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-6, a fast demoulding structure for an injection molding machine comprises a fixed plate 1 and a male die 2 which are fixedly installed on the injection molding machine, and further comprises: the first telescopic equipment 3 is fixedly arranged on the outer wall of the fixed plate 1, wherein the telescopic end of the first telescopic equipment 3 is fixedly connected with a device plate 6, a female die 4 is arranged on the device plate 6 through an automatic dumping mechanism, and an injection molding cavity 5 is arranged on the female die 4; circular recess 15 sets up the inner wall at the chamber of moulding plastics 5, wherein, be equipped with in the circular recess 15 rather than complex circular roof 16, the lateral wall fixedly connected with of circular roof 16 towards the push rod 17 of fixed plate 1, the inner wall of circular recess 15 be equipped with push rod 17 complex round hole 42, be equipped with on the fixed plate 1 with push rod 17 complex roof pressure subassembly, the lateral wall of device board 6 is equipped with push rod 17 complex bar groove 31.

When a product in the female die 4 needs to be ejected, the device plate 6 and the female die 4 are driven to move towards the direction of the male die 2 according to the principle through the first telescopic device 3, after the device plate 6 and the female die 4 move for a certain distance, the push rod 17 can be limited by the ejection component, so that the circular top plate 16 is driven to eject towards the injection molding cavity 5, the product in the injection molding cavity 5 can be ejected, meanwhile, the female die 4 can be driven to rotate clockwise by automatic dumping, the injection molding cavity 5 of the female die 4 is enabled to be arranged in a downward inclined mode, the product in the injection molding cavity 5 can be forced to dump downwards, the product demolding efficiency is further improved, and in practice, when the female die 4 is inclined by 90 degrees, namely when the injection molding cavity 5 of the female die 4 faces downwards, the product demolding effect is the best.

Example 2:

referring to fig. 1-4, substantially the same as example 1, further, a specific embodiment of an automatic dumping mechanism is specifically disclosed.

The automatic dumping mechanism comprises a fixed seat 7 fixedly connected to the side wall of the lower end of the female die 4, wherein a rotating shaft 8 is fixedly connected to the fixed seat 7, the rotating shaft 8 is rotatably connected to the lower end of the mounting plate 6, a worm wheel 10 is fixedly mounted at the shaft end of the rotating shaft 8, the lower end of the mounting plate 6 is rotatably connected with a rotating rod 11 through a support 12, and a worm 14 meshed with the worm wheel 10 is fixedly connected to the rotating rod 11; a driven gear 13 is also fixedly arranged on the rotating rod 11, and a spur rack 9 matched with the driven gear 13 is fixedly connected to the fixed plate 1.

After the mounting plate 6 and the female die 4 move for a certain distance, the driven gear 13 starts to contact with the straight rack 9, the driven gear 13 can drive the rotating rod 11 to rotate, the rotating rod 11 can drive the worm 14 to rotate, the worm 14 can drive the rotating shaft 8 to rotate through the worm wheel 10, and the rotating shaft 8 can drive the female die 4 to rotate clockwise, so that the injection molding cavity 5 of the female die 4 is arranged in a downward inclined mode, products in the injection molding cavity 5 can be forced to topple downwards, and the product demolding efficiency is improved.

Example 3:

referring to fig. 1-3, substantially the same as example 1, further, an embodiment of a press assembly is specifically disclosed.

The roof pressure subassembly includes arc 26 of fixed connection on fixed plate 1, and the outer wall fixedly connected with limiting plate 18 of push rod 17, through first spring 19 elastic connection between the outer wall of limiting plate 18 and die 4, after device board 6 removed a section distance with die 4, push rod 17 can receive arc 26's restriction to drive circular roof 16 roof to mould plastics 5 interior roof pressure, can be ejecting with the product in the chamber 5 of moulding plastics.

Example 4:

with reference to fig. 2, 3, 5 and 6, essentially the same as in example 1, a further embodiment of the injection mold cavity 5 for blow molding is added.

A gas storage cavity 37 is arranged in the circular top plate 16, a plurality of air blowing holes 38 are uniformly distributed at the shaft end of the circular top plate 16, inclined holes 41 communicated with the air blowing holes 38 are arranged in the gas storage cavity 37, plungers 39 are connected in the air blowing holes 38 in a sliding mode, the plungers 39 correspond to the inclined holes 41 in position, second telescopic equipment 40 is fixedly installed on the inner wall of each air blowing hole 38, and the plungers 39 are fixedly connected to the telescopic ends of the second telescopic equipment 40;

the end of push rod 17 is equipped with slide opening 20, sliding connection has piston 22 in slide opening 20, wherein, through second spring 23 elastic connection between the inner wall of piston 22 and slide opening 20, fixedly connected with is towards the stock 21 of arc 26 on the piston 22, fixedly connected with and the first trachea 25 and the first trachea 24 of slide opening 20 intercommunication on the push rod 17, equal fixed mounting has the check valve in first trachea 25 and the first trachea 24, the end of first trachea 24 extends to in the gas storage chamber 37.

When the push rod 17 moves towards the arc-shaped plate 26, the push rod 17 can drive the long rod 21 to slide towards the arc-shaped plate 26, when the circular top plate 16 cannot eject out a product in the injection molding cavity 5, the long rod 21 can drive the piston 22 to push towards the injection molding cavity 5 under the action of jacking pressure, air in the slide hole 20 can be extruded by the piston 22, then the compressed air in the air storage cavity 37 can be conveyed into the air storage cavity 37 from the first exhaust pipe 24, when the first telescopic device 3 is opened, the second telescopic device 40 is opened simultaneously, the second telescopic device 40 can drive the plunger 39 to move towards the direction far away from the injection molding cavity 5, when the plunger 39 is completely separated from the inclined hole 41, the compressed air in the air storage cavity 37 can be conveyed into the air blowing hole 38, the air blowing hole 38 can blow air into the injection molding cavity 5, so that a gap is formed between the product and the inner wall of the injection molding cavity 5, the product is not easy to be clamped in the injection molding cavity 5, and the product can be further cooled, the efficiency of product demoulding can be further improved, when the long rod 17 resets, and the long rod 21 can be driven to slide towards the slide and reset through the outside air suction pipe 20.

The pulley 27 is installed to the end of stock 21, a plurality of evenly distributed's cambered surface lug 28 of fixedly connected with on the arc 26, when device board 6 drives die 4 rotation slope, the terminal pulley 27 of stock 21 can be at the surperficial slip of arc 26, when pulley 27 roof pressure to cambered surface lug 28, stock 21 removes to injection molding chamber 5 direction, when pulley 27 crosses the surface of cambered surface lug 28, stock 21 then can reset under the effect of first spring 19 and second spring 23, then when pulley 27 passes through a plurality of cambered surface lugs 28, stock 21 can reciprocal shake, make the difficult card of product in injection molding chamber 5, thereby it shakes to drive push rod 17 and terminal circular roof 16 production, can promote the ejecting efficiency of circular roof 16, also be the efficiency of the drawing of patterns.

Arc rack 30 of a plurality of evenly distributed of fixedly connected with on the arc 26, the terminal outer wall fixed mounting of stock 21 has with arc rack 30 complex driven gear 29, when pulley 27 slides on arc 26, pulley 27 can drive stock 21 indirectness and sweep a plurality of arc racks 30 in proper order, stock 21 then can drive driven gear 29 indirectness and slide a plurality of arc racks 30 in proper order, driven gear 29 then can indirectness drive stock 21 and rotate, and when driven gear 29 crossed arc rack 30, first spring 19 drives stock 21 and push rod 17 reversal reset, then under the effect of a plurality of arc racks 30, push rod 17 can drive circular top plate 16 reciprocating rotation, circular top plate 16 then can drive the product of roof pressure reciprocal swing in injection molding chamber 5, make the product difficult card again in injection molding chamber 5, can further promote the drawing of patterns efficiency of product.

First telescopic equipment 3 and second telescopic equipment 40 are electric telescopic handle, make the operation of whole device more simple and convenient.

Example 5:

referring to fig. 1 to 3, substantially the same as in example 1, further, an embodiment of further heat dissipation of the concave mold 4 is added.

A curved radiating pipe 33 is fixedly installed in the female die 4, one end of the curved radiating pipe 33 is fixedly connected with an air inlet pipe 34 extending to the outer wall of the female die 4, an air suction assembly connected with the other end of the curved radiating pipe 33 is arranged between the device plate 6 and the female die 4, the air suction assembly comprises a telescopic air bag 32 fixedly installed between the device plate 6 and the outer wall of the female die 4, a second air suction pipe 35 and a second air exhaust pipe 36 communicated with the telescopic air bag 32 are fixedly connected with the telescopic air bag 32, one-way valves are installed in the second air suction pipe 35 and the second air exhaust pipe 36, and the second air suction pipe 35 is fixedly connected with and communicated with one end of the curved radiating pipe 33;

when the slope is rotated downwards at die 4, die 4 can tensile flexible gasbag 32, flexible gasbag 32 then can breathe in curved shape cooling tube 33 through second breathing pipe 35, curved shape cooling tube 33 then can absorb outside air through intake pipe 34, thereby to the further heat dissipation of die 4, can make the product in the chamber of moulding plastics 5 obtain further heat dissipation, the product then can the grow with the clearance in the chamber of moulding plastics 5, can indirectness promotion product drawing of patterns efficiency, when die 4 resets, die 4 can extrude flexible gasbag 32, flexible gasbag 32 then can be discharged the hot-air of absorption from second blast pipe 36.

This quick demoulding structure that injection molding machine was used, when needing ejecting the product in the die 4, drive device board 6 and die 4 through first telescoping device 3 and remove towards the direction of principle terrace die 2, after device board 6 and die 4 remove a distance, push rod 17 can receive the restriction of arc 26, thereby drive circular roof 16 roof pressure in to injection molding chamber 5, can be ejecting with the product in the injection molding chamber 5, meanwhile, driven gear 13 begins to contact with spur rack 9, driven gear 13 then can drive bull stick 11 and rotate, bull stick 11 then can drive worm 14 and rotate, worm 14 then can drive pivot 8 through worm wheel 10 and rotate, pivot 8 then can drive die 4 clockwise rotation, thereby make the injection molding chamber 5 downward sloping setting of die 4, the product in the injection molding chamber 5 then can receive the power of toppling over downwards, and then promote the efficiency of product drawing of patterns, after the drawing of patterns, drive die 4 reverse slip through first telescoping device 3 and reset, push rod 17 then can drive circular roof 16 in the circular recess 15 under the effect of first spring 19, the final straight rack 4 can reset again, the tight cooperation of supporting with the terrace die 2 again.

When the push rod 17 moves towards the arc-shaped plate 26, the push rod 17 can drive the long rod 21 to slide towards the arc-shaped plate 26, when the round top plate 16 cannot eject a product in the injection molding cavity 5, the long rod 21 can drive the piston 22 to push towards the injection molding cavity 5 under the jacking action, air in the sliding hole 20 can be extruded by the piston 22, the compressed air in the air storage cavity 37 can be conveyed into the air storage cavity 37 from the first exhaust pipe 24, when the first telescopic device 3 is opened, the second telescopic device 40 is opened at the same time, the plunger 39 can be driven to move towards the direction away from the injection molding cavity 5 by the second telescopic device 40, when the plunger 39 is completely separated from the inclined hole 41, the compressed air in the air storage cavity 37 can be conveyed into the air blowing hole 38, the air blowing hole 38 can blow air in the injection molding cavity 5, so that a gap is formed between the product and the inner wall of the injection molding cavity 5, the product is not easy to be clamped in the injection molding cavity 5, the product can be further cooled, the product demoulding efficiency can be further improved, when the female die 4 is reset, the second spring 23 can drive the long rod 21 to slide and the sliding hole 20 can suck external air through the first air.

When die 4 down rotation slope, die 4 can tensile flexible gasbag 32, flexible gasbag 32 then can breathe in curved shape cooling tube 33 through second breathing pipe 35, curved shape cooling tube 33 then can absorb outside air through intake pipe 34, thereby to the further heat dissipation of die 4, can make the product in the chamber 5 of moulding plastics obtain further heat dissipation, the product then can the grow with the clearance in the chamber 5 of moulding plastics, can indirectness promote the drawing of patterns efficiency of product, when die 4 resets, die 4 can extrude flexible gasbag 32, flexible gasbag 32 then can discharge the hot-air of absorption from second blast pipe 36.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a quick demoulding structure that injection molding machine was used, includes fixed plate (1) and terrace die (2) of fixed mounting on the injection molding machine, its characterized in that still includes:

a first telescopic device (3) fixedly arranged on the outer wall of the fixed plate (1),

the device plate (6) is fixedly connected with the telescopic end of the first telescopic device (3), a female die (4) is mounted on the device plate (6) through an automatic dumping mechanism, and an injection molding cavity (5) is formed in the female die (4);

a circular groove (15) arranged on the inner wall of the injection molding cavity (5),

the device is characterized in that a circular top plate (16) matched with the circular groove is arranged in the circular groove (15), a push rod (17) facing the fixing plate (1) is fixedly connected to the side wall of the circular top plate (16), a round hole (42) matched with the push rod (17) is formed in the inner wall of the circular groove (15), a jacking assembly matched with the push rod (17) is arranged on the fixing plate (1), and a strip-shaped groove (31) matched with the push rod (17) is formed in the side wall of the device plate (6).

2. The quick release structure for an injection molding machine according to claim 1, wherein said automatic dumping mechanism comprises:

a fixed seat (7) fixedly connected with the side wall of the lower end of the female die (4),

the device comprises a fixed seat (7), a rotating shaft (8), a rotating rod (11), a worm (14) and a worm wheel (10), wherein the rotating shaft (8) is fixedly connected to the fixed seat (7), the rotating shaft (8) is rotatably connected to the lower end of a device plate (6), the worm wheel (10) is fixedly installed at the shaft end of the rotating shaft (8), the lower end of the device plate (6) is rotatably connected with the rotating rod (11) through a support (12), and the worm (14) in meshed connection with the worm wheel (10) is fixedly connected to the rotating rod (11);

still fixed mounting has driven gear (13) on bull stick (11), fixedly connected with and driven gear (13) complex spur rack (9) on fixed plate (1).

3. The structure of claim 1, wherein the pressing assembly comprises:

fixedly connected arc (26) on fixed plate (1), the outer wall fixedly connected with limiting plate (18) of push rod (17), through first spring (19) elastic connection between limiting plate (18) and the outer wall of die (4).

4. The rapid demoulding structure for injection moulding machines according to claim 3, wherein the circular top plate (16) is provided with a gas storage cavity (37), the axial end of the circular top plate (16) is provided with a plurality of uniformly distributed gas blowing holes (38),

the gas storage device is characterized in that an inclined hole (41) communicated with a plurality of gas blowing holes (38) is formed in the gas storage cavity (37), a plunger (39) is connected to the inside of each gas blowing hole (38) in a sliding mode, the position of the plunger (39) corresponds to that of the inclined hole (41), second telescopic equipment (40) is fixedly mounted on the inner wall of each gas blowing hole (38), and the plunger (39) is fixedly connected to the telescopic end of the second telescopic equipment (40).

5. A rapid demoulding structure for injection moulding machines according to claim 4, wherein the end of the push rod (17) is provided with a slide hole (20), a piston (22) is slidably connected in the slide hole (20),

wherein, through second spring (23) elastic connection between the inner wall of piston (22) and slide opening (20), fixedly connected with is towards stock (21) of arc (26) on piston (22), and fixedly connected with and first trachea (25) and first trachea (24) of slide opening (20) intercommunication on push rod (17), equal fixed mounting has a check valve in first trachea (25) and the first trachea (24), the end of first trachea (24) extends to in the gas storage chamber (37).

6. The quick demoulding structure for injection moulding machines according to claim 5, characterized in that the end of the long rod (21) is provided with a pulley (27), and the arc plate (26) is fixedly connected with a plurality of evenly distributed arc lugs (28).

7. The quick demoulding structure for the injection molding machine according to claim 5, wherein a plurality of evenly distributed arc-shaped racks (30) are fixedly connected to the arc-shaped plate (26), and a driven gear (29) matched with the arc-shaped racks (30) is fixedly arranged on the outer wall of the tail end of the long rod (21).

8. The rapid demoulding structure of injection molding machine that claim 2 said, fixed mounting has curved shape cooling tube (33) in die (4), the one end fixedly connected with of curved shape cooling tube (33) extends to intake pipe (34) of die (4) outer wall, be equipped with the subassembly of breathing in of being connected with curved shape cooling tube (33) other end between mounting plate (6) and die (4).

9. A quick release structure for an injection molding machine as claimed in claim 8, wherein said suction assembly comprises:

a telescopic air bag (32) fixedly arranged between the device plate (6) and the outer wall of the female die (4),

the telescopic air bag (32) is fixedly connected with a second air suction pipe (35) and a second exhaust pipe (36) which are communicated with the telescopic air bag, one-way valves are installed in the second air suction pipe (35) and the second exhaust pipe (36), and the second air suction pipe (35) is fixedly connected and communicated with one end of the curved radiating pipe (33).

10. The rapid demoulding structure for injection moulding machines according to claim 4, wherein the first telescopic device (3) and the second telescopic device (40) are both electric telescopic rods.