CN117245850A

CN117245850A - Automatic demolding injection molding device

Info

Publication number: CN117245850A
Application number: CN202311299047.8A
Authority: CN
Inventors: 林增荣; 曹宜荣; 成明祥; 叶如清
Original assignee: Deqing Shenda Machinery Manufacturing Co ltd
Current assignee: Deqing Shenda Machinery Manufacturing Co ltd
Priority date: 2023-10-09
Filing date: 2023-10-09
Publication date: 2023-12-19

Abstract

The utility model discloses an automatic demolding injection molding device, which relates to the technical field of demolding injection molding and comprises a base, wherein the top of the base is fixedly connected with a clamping block, the right side of the clamping block is lapped with a mold, the bottom of the mold is lapped with the top of the base, the right side of the top of the base is fixedly connected with a clamping frame, the middle of the clamping frame is rotationally connected with a rotating shaft II, the right end of the rotating shaft II is fixedly connected with a rocker, the right end of the rotating shaft II is fixedly connected with rotating wheels, and the number of the rotating wheels is two. According to the utility model, the rocker is rotated downwards to enable the rotating shaft to rotate downwards, so that the rotating wheels rotate downwards, the number of the rotating wheels is two, the rotating wheels are sequentially arranged on the right side of the second rotating shaft, each rotating wheel corresponds to one right rotating wheel, and as the rotating wheels are in transmission connection with the right rotating wheels through the V-belt, the two right rotating wheels rotate downwards, so that the rotating shaft is driven to rotate downwards, and the two threaded rods rotate downwards.

Description

Automatic demolding injection molding device

Technical Field

The utility model relates to the technical field of demolding and injection molding, in particular to an automatic demolding and injection molding device.

Background

Injection molding is a method for producing and shaping industrial products, the products are usually rubber injection molding and plastic injection molding, the injection molding can be divided into injection molding compression molding and pressure casting, and an injection molding machine is a main molding device for manufacturing thermoplastic plastics or thermosetting materials into plastic products with various shapes by utilizing a plastic molding die.

For example, chinese patent publication No. CN215661688U discloses an injection molding device capable of automatically demolding, which comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a fixed plate, the inside of the fixed plate is fixedly connected with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a sliding plate, one side of the sliding plate is provided with a movable mold, the top of the bottom plate is fixedly connected with a fixed box which is positioned on one side of the sliding plate, and one side of the fixed box is provided with a fixed mold matched with the movable mold; the beneficial effects achieved by the utility model are as follows: the automatic demolding device has the advantages that the automatic demolding function is achieved through the arrangement of the electric telescopic rod, the transmission rod, the connecting plate, the connecting rod, the push plate, the rotating rod, the limiting rod, the sliding block and the guide groove, the cooling function of the injection molding rear mold is achieved through the arrangement of the fan, the diaphragm pump, the semiconductor refrigerating sheet and the cooling pipe, the working efficiency is high, and the practicability is strong.

The following problems exist in the prior art:

the existing demolding injection molding device lacks a clamping component, so that the mold is easy to deviate during injection molding, and materials cannot be injected into the mold; the existing demolding injection molding device is usually used for directly performing injection molding, but a plurality of molten liquids contain partial bubbles, so that the quality of finished products is affected; most of existing demolding injection molding devices are manually demolding, so that the working efficiency is low and the practicability is poor.

Disclosure of Invention

The utility model provides an automatic demolding injection molding device, which aims to solve the problems in the background technology.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an automatic drawing of patterns injection molding device, includes the base, the top fixedly connected with grip block of base, the right side overlap joint of grip block has the mould, the bottom of mould and the mutual overlap joint in top of base, the top right side fixedly connected with centre gripping frame of base, the centre gripping frame rotates in the middle of being connected with the pivot two, the right-hand member fixedly connected with rocker of pivot two, the right-hand member fixedly connected with runner of pivot two, the quantity of runner is two, the both ends on the inner chamber right side of centre gripping frame rotate and are connected with the pivot, the surface fixedly connected with right runner of pivot, the left side fixedly connected with threaded rod two, the top left side fixedly connected with motor two, the axis of rotation upper end fixedly connected with threaded rod of motor two, the left side fixedly connected with threaded rod of grip block, the upper end movable sleeve of straight sleeve, the top fixedly connected with conveying pipeline of straight sleeve, the left side fixedly connected with straight rod, the right-hand member motor, the right-hand member fixedly connected with axis of rotation of motor, the surface fixedly connected with rotation of rotation leaf blade, the side of rotation axis of rotation is fixedly connected with threaded rod two-threaded rod, the bottom plate is connected with the top of base, the two-way screw top of the top of base is connected with the threaded rod, the two-way top of the top of base is connected with the threaded rod, the top of the two-way top of the feed carrier, the top is connected with the top of the two-way, the right end fixedly connected with bevel gear of two-way threaded rod, the inner chamber bottom of base just is located the right side fixedly connected with motor III of fixed block.

The technical scheme of the utility model is further improved as follows: the surface transmission of right runner is connected with the V belt, the lower extreme of V belt is connected with the surface transmission of runner.

The technical scheme of the utility model is further improved as follows: the left side of the clamping frame is movably sleeved with a second threaded sleeve, and the inside of the second threaded sleeve is in threaded connection with the surface of the second threaded rod.

The technical scheme of the utility model is further improved as follows: the left side fixedly connected with grip block two of the said screw thread cover two, the left side of the said grip block two overlaps with the right side of the base each other.

The technical scheme of the utility model is further improved as follows: the left side of the bottom of the conveying pipe is fixedly connected with a thread sleeve, and the inside of the thread sleeve is in threaded connection with the surface of the threaded rod.

The technical scheme of the utility model is further improved as follows: the top of the straight rod is fixedly connected with a spring, and the top of the spring is fixedly connected with the top of the inner cavity of the straight sleeve.

The technical scheme of the utility model is further improved as follows: the bottom of the bottom plate is provided with a sliding groove, and the inside of the sliding groove is in sliding connection with the upper end of the sliding block.

The technical scheme of the utility model is further improved as follows: the top of the rotating shaft of the motor III is fixedly connected with a bevel gear II, and the left end of the bevel gear II is meshed with the upper end of the bevel gear.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. the utility model provides an automatic demolding injection molding device, which adopts mutual coordination among a rocker, rotating wheels, a threaded rod II and a clamping block II, wherein the rocker is downwards rotated to enable a rotating shaft to downwards rotate, so that the rotating wheels downwards rotate, the number of the rotating wheels is two, the rotating wheels are sequentially arranged on the right side of the rotating shaft II, each rotating wheel corresponds to one right rotating wheel, the rotating wheels are in transmission connection with the right rotating wheels through a triangular belt, so that the two right rotating wheels downwards rotate to drive the rotating shaft to downwards rotate, so that the threaded rod II downwards rotates, and the threaded sleeve II is in threaded connection with the threaded sleeve II, so that the threaded sleeve downwards moves to drive the clamping block to downwards move to the left, and the mold is clamped under the action of the clamping block II, so that the mold cannot deviate in the injection molding process.

2. The utility model provides an automatic demolding injection molding device, which adopts the mutual coordination among a motor II, a threaded rod, a motor and a spring, wherein the threaded rod is enabled to move clockwise by starting the motor II, the threaded rod and a threaded sleeve are connected with each other through threads, so that the threaded sleeve moves downwards, a conveying pipe is enabled to move downwards, when a discharge hole slides into a feed inlet, the motor II is closed, meanwhile, a straight sleeve moves downwards along a straight rod, the spring is enabled to be compressed, the lowering of a mold is enabled to be more stable under the action of the spring, then the motor is started, a rotating shaft is enabled to rotate clockwise, a rotating blade is driven to rotate clockwise, molten plastic liquid is added from a feed hopper, under the action of the rotating blade, the plastic liquid is enabled to be fused more uniformly, the effect of reducing bubbles is achieved, the plastic liquid is enabled to be conveyed into the mold through the discharge hole, and the injection molding process is further completed.

3. The utility model provides an automatic demolding injection molding device, which adopts a motor III, a rotating plate, a threaded sliding block and a bottom plate to be mutually matched, and the motor III is started to enable a bevel gear II to move clockwise, so that the bevel gear II and the bevel gear are mutually meshed to enable the bevel gear to rotate upwards and further drive a bidirectional threaded rod to rotate upwards, the bidirectional threaded rod is a threaded rod with opposite threads on two sides, the threaded sliding block and the bidirectional threaded rod are mutually connected in a threaded manner, so that the two threaded sliding blocks move inwards and further enable the two rotating plates to rotate, the middle parts of the rotating plates are mutually intersected and rotationally connected to further drive the two sliding blocks to move inwards along a sliding groove and further drive the bottom plate to move upwards along the inside of a mold, the surface of the bottom plate and the inside of the mold are mutually attached to be used as a bottom bearing part of the mold, and then cooled finished products can be ejected, and the demolding effect is achieved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of the clamping assembly of the present utility model;

FIG. 4 is a schematic view of a clamping assembly according to the present utility model;

FIG. 5 is an enlarged schematic view of the injection molding assembly of the present utility model;

fig. 6 is an enlarged schematic view of the stripper assembly of the present utility model.

In the figure: 1. a base; 2. a material conveying pipe; 3. a mold; 4. a clamping frame; 5. a clamping block; 10. a bottom plate; 11. a straight rod; 12. straight sleeve; 13. a spring; 21. a motor; 22. a feed hopper; 23. a rotating shaft; 24. a rotating blade; 25. a discharge port; 26. a feed inlet; 27. a thread sleeve; 28. a threaded rod; 29. a second motor; 41. a clamping block II; 42. a second thread sleeve; 43. a second threaded rod; 44. a rocker; 45. a right wheel; 46. a rotating shaft; 47. a V-belt; 48. a rotating wheel; 49. a second rotating shaft; 51. a two-way threaded rod; 52. a thread slider; 53. a fixed block; 54. a rotating plate; 55. a slide block; 56. a chute; 57. bevel gears; 58. bevel gears II; 59. and a third motor.

Detailed Description

The utility model is further illustrated by the following examples:

example 1

As shown in fig. 1-6, the utility model provides an automatic demolding injection molding device, which comprises a base 1, wherein the top of the base 1 is fixedly connected with a clamping block 5, the right side of the clamping block 5 is lapped with a mold 3, the bottom of the mold 3 is lapped with the top of the base 1, the right side of the top of the base 1 is fixedly connected with a clamping frame 4, the middle of the clamping frame 4 is rotationally connected with a second rotating shaft 49, the right end of the second rotating shaft 49 is fixedly connected with a rocker 44, the right end of the second rotating shaft 49 is fixedly connected with a rotating wheel 48, the number of the rotating wheels 48 is two, the two ends of the right side of an inner cavity of the clamping frame 4 are rotationally connected with a rotating shaft 46, the surface of the rotating shaft 46 is fixedly connected with a right rotating wheel 45, the left side of the rotating shaft 46 is fixedly connected with a second threaded rod 43, the left side of the top of the base 1 is fixedly connected with a second motor 29, the upper end of the rotating shaft of the second motor 29 is fixedly connected with a threaded rod 28, the left side of the clamping block 5 is fixedly connected with a straight rod 11, the upper end of the straight rod 11 is movably sleeved with a straight sleeve 12, the top of the straight sleeve 12 is fixedly connected with a conveying pipe 2, the left side of the conveying pipe 2 is fixedly connected with a motor 21, the right end of a rotating shaft of the motor 21 is fixedly connected with a rotating shaft 23, the surface of the rotating shaft 23 is fixedly connected with a rotating blade 24, the right end of the rotating shaft 23 is rotationally connected with the right side of an inner cavity of the conveying pipe 2, the left side of the top of the conveying pipe 2 is fixedly connected with a feed hopper 22, the right side of the bottom of the conveying pipe 2 is fixedly connected with a discharge hole 25, the left side of the top of a die 3 is provided with a feed hole 26, the bottom of the die 3 is slidingly connected with a bottom plate 10, the middle of the bottom of the inner cavity of a base 1 is fixedly connected with a 50, the inside of the 50 is rotationally connected with a bidirectional threaded rod 51, two ends of the bidirectional threaded rod 51 are rotationally connected with a fixed block 53, two sides of the bidirectional threaded rod 51 are rotationally connected with a threaded slider 52, the top of the threaded slider 52 is rotationally connected with a rotating plate 54, the top of the rotating plate 54 is rotatably connected with a sliding block 55, the right end of the bidirectional threaded rod 51 is fixedly connected with a bevel gear 57, and the bottom of the inner cavity of the base 1 is fixedly connected with a motor III 59 positioned on the right side of the fixed block 53.

In this embodiment, by rotating the rocker 44 downwards to rotate the second rotating shaft 49 downwards, so that the rotating wheels 48 rotate downwards, the number of the rotating wheels 48 is two, the rotating wheels 48 are sequentially arranged on the right side of the second rotating shaft 49, each rotating wheel 48 corresponds to one right rotating wheel 45, so that the two right rotating wheels 45 rotate downwards, the rotating shaft 46 is driven to rotate downwards, the two threaded rods 43 rotate downwards, the threaded sleeves 42 move leftwards, the clamping blocks 41 are driven to move leftwards, the die 3 is clamped, the die 3 cannot deviate in the injection molding process, the threaded rods 28 move clockwise, the threaded sleeves 27 move downwards, the conveying pipe 2 moves downwards, and after the discharge hole 25 slides into the feed hole 26, closing the motor II 29, simultaneously, the straight sleeve 12 moves downwards, the spring 13 is compressed, the die 3 descends more stably, then, starting the motor 21, the rotating shaft 23 rotates clockwise, the rotating blade 24 rotates clockwise, molten plastic liquid is added from the feed hopper 22, the molten plastic liquid is fused more uniformly under the action of the rotating blade 24, the effect of reducing bubbles is achieved, the plastic liquid is conveyed into the die 3 through the discharge hole 25, the injection molding process is finished, after the plastic liquid is cooled, the motor III 59 is started, the bevel gear II 58 moves clockwise, the bevel gear 57 rotates upwards, the bidirectional threaded rod 51 is a threaded rod with opposite threads on two sides, the two thread sliders 52 move inwards, and then make two swivel plates 54 rotate, the centre of swivel plates 54 is crisscross and rotates to be connected each other, and then drives two sliders 55 to remove to inside, and then drives bottom plate 10 upwards to remove, and the surface of bottom plate 10 laminates each other with the inside of mould 3, also can slide when taking part as the bottom of mould 3, and then carries out ejecting with the finished product after the cooling, reaches the effect of drawing of patterns.

Example 2

As shown in fig. 1-6, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the surface transmission of right runner 45 is connected with V belt 47, and the lower extreme of V belt 47 is connected with the surface transmission of runner 48, and the left side activity of centre gripping frame 4 has cup jointed thread bush two 42, and the inside of thread bush two 42 is connected with the surface screw thread of threaded rod two 43, and the left side fixedly connected with grip block two 41 of thread bush two 42, the left side of grip block two 41 and the mutual overlap joint in right side of base 1.

In this embodiment, by rotating the rocker 44 downwards, the second rotating shaft 49 rotates downwards, so that the rotating wheels 48 rotate downwards, the number of the rotating wheels 48 is two, the rotating wheels 48 are sequentially arranged on the right side of the second rotating shaft 49, each rotating wheel 48 corresponds to one right rotating wheel 45, the rotating wheels 48 and the right rotating wheels 45 are connected through the V-belt 47 in a transmission manner, so that the two right rotating wheels 45 rotate downwards, the rotating shafts 46 are driven to rotate downwards, the two threaded rods 43 rotate downwards, and the second threaded rod 43 and the second threaded sleeve 42 are connected in a threaded manner, the second threaded rod 43 and the second threaded sleeve 42 are further connected in a threaded manner, so that the second threaded sleeve 42 moves leftwards, the second clamping block 41 is driven to move leftwards, and the mold 3 is clamped under the action of the second clamping blocks 5 and the second clamping blocks 41, so that the mold 3 cannot deviate in the injection molding process.

Example 3

As shown in fig. 1-6, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, a threaded sleeve 27 is fixedly connected to the left side of the bottom of the conveying pipe 2, the inside of the threaded sleeve 27 is in threaded connection with the surface of a threaded rod 28, a spring 13 is fixedly connected to the top of the straight rod 11, and the top of the spring 13 is fixedly connected with the top of the inner cavity of the straight sleeve 12.

In this embodiment, by starting the second motor 29 to make the threaded rod 28 move clockwise, since the threaded rod 28 and the threaded sleeve 27 are connected with each other by threads, the threaded sleeve 27 moves downwards, so that the conveying pipe 2 moves downwards, after the discharge hole 25 slides into the feed hole 26, the second motor 29 is closed, meanwhile, the straight sleeve 12 moves downwards along the straight rod 11, so that the spring 13 compresses, the die 3 descends more stably under the action of the spring 13, then the motor 21 is started, the rotating shaft 23 rotates clockwise, the rotating blade 24 rotates clockwise, molten plastic liquid is added from the feed hopper 22 under the action of the rotating blade 24, the plastic liquid is fused more uniformly, the effect of reducing bubbles is achieved, and the plastic liquid is conveyed into the die 3 through the discharge hole 25, so that the injection molding process is completed.

Example 4

As shown in fig. 1-6, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the bottom of the bottom plate 10 is provided with a chute 56, the interior of the chute 56 is slidably connected with the upper end of the sliding block 55, the top of the rotating shaft of the third motor 59 is fixedly connected with a bevel gear II 58, and the left end of the bevel gear II 58 is meshed with the upper end of the bevel gear 57.

In this embodiment, by starting the motor three 59 to make the bevel gear two 58 move clockwise, because the bevel gear two 58 and the bevel gear 57 are meshed with each other, the bevel gear 57 rotates upwards, and then drives the bidirectional threaded rod 51 to rotate upwards, the bidirectional threaded rod 51 is threaded rod with opposite threads on two sides, and because the threaded slide blocks 52 and the bidirectional threaded rod 51 are connected with each other by threads, the two threaded slide blocks 52 move inwards, and then the two rotating plates 54 rotate, the middle of the rotating plates 54 are crossed with each other and are connected by rotation, and then the two slide blocks 55 are driven to move inwards along the sliding groove 56, and then the bottom plate 10 moves upwards along the inside of the die 3, the surface of the bottom plate 10 and the inside of the die 3 are mutually attached, and can slide when being used as the bottom bearing part of the die 3, and then the cooled finished product is ejected out, so as to achieve the demolding effect.

The working principle of the automatic demolding injection molding device is specifically described below.

As shown in fig. 1-6, the mold 3 is first placed on the base 1, such that the bottom plate 10 enters the interior of the mold 3, the second rotating shaft 49 is rotated downward by rotating the rocker 44 downward, such that the second rotating wheels 48 are rotated downward, the number of the second rotating wheels 48 is two, and the second rotating wheels 48 are sequentially disposed on the right side of the second rotating shaft 49, and each of the second rotating wheels 48 corresponds to one of the right rotating wheels 45, because the second rotating wheels 48 and the right rotating wheels 45 are connected through the v belt 47 in a transmission manner, such that the two right rotating wheels 45 are rotated downward, such that the second threaded rod 43 is rotated downward, such that the second threaded rod 43 and the second threaded sleeve 42 are connected through the threads, such that the second threaded sleeve 42 is moved leftward, such that the second clamping block 41 is driven leftward, such that the mold 3 is clamped under the action of the clamping blocks 5 and the second clamping block 41, the die 3 can not deviate in the injection molding process, the motor II 29 is started, the threaded rod 28 moves clockwise, the threaded rod 28 and the threaded sleeve 27 are connected with each other through threads, the threaded sleeve 27 moves downwards, the conveying pipe 2 moves downwards, after the discharge hole 25 slides into the feed hole 26, the motor II 29 is closed, the straight sleeve 12 moves downwards along the straight rod 11, the spring 13 is compressed, the die 3 descends more stably under the action of the spring 13, the motor 21 is started, the rotating shaft 23 rotates clockwise, the rotating blade 24 is driven to rotate clockwise, molten plastic liquid is added from the feed hopper 22, the molten plastic liquid is fused more uniformly under the action of the rotating blade 24, the effect of reducing bubbles is achieved, the plastic liquid is conveyed into the die 3 through the discharge hole 25, and then accomplish the process of moulding plastics, wait to get plastics liquid cooling back, through start motor three 59, make bevel gear two 58 clockwise move, because bevel gear two 58 and bevel gear 57 intermesh, and then make bevel gear 57 upwards rotate, and then drive the upwards rotation of two-way threaded rod 51, two-way threaded rod 51 is the threaded rod of both sides opposite screw thread, because screw thread slider 52 and two-way threaded rod 51 mutual threaded connection, and then make two screw thread slider 52 inwards move, and then make two swivel plates 54 rotate, the centre of swivel plates 54 is crisscross and rotate and connect, and then drive two sliders 55 and follow spout 56 and inwards move, and then drive bottom plate 10 upwards to move along the inside of mould 3, the surface of bottom plate 10 and the inside mutual laminating of mould 3 also can slide when being the bottom portion of accepting of mould 3, and then carry out ejection with the finished product after the cooling, reach the effect of drawing of patterns.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims

1. An automatic demolding injection molding device, comprising a base (1), characterized in that: the novel plastic mold is characterized in that the top of the base (1) is fixedly connected with a clamping block (5), the right side of the clamping block (5) is overlapped with a mold (3), the bottom of the mold (3) is overlapped with the top of the base (1), the right side of the top of the base (1) is fixedly connected with a clamping frame (4), the middle of the clamping frame (4) is rotationally connected with a rotating shaft II (49), the right end of the rotating shaft II (49) is fixedly connected with a rocker (44), the right end of the rotating shaft II (49) is fixedly connected with rotating wheels (48), the number of the rotating wheels (48) is two, two ends of the right side of an inner cavity of the clamping frame (4) are rotationally connected with rotating shafts (46), the surface of each rotating shaft (46) is fixedly connected with a right rotating wheel (45), and the left side of each rotating shaft (46) is fixedly connected with a threaded rod II (43).

The novel feeding device is characterized in that a motor II (29) is fixedly connected to the left side of the top of the base (1), a threaded rod (28) is fixedly connected to the upper end of a rotating shaft of the motor II (29), a straight rod (11) is fixedly connected to the left side of the clamping block (5), a straight sleeve (12) is movably sleeved at the upper end of the straight rod (11), a conveying pipe (2) is fixedly connected to the top of the straight sleeve (12), a motor (21) is fixedly connected to the left side of the conveying pipe (2), a rotating shaft (23) is fixedly connected to the right end of the rotating shaft of the motor (21), a rotating blade (24) is fixedly connected to the surface of the rotating shaft (23), the right end of the rotating shaft is rotatably connected to the right side of an inner cavity of the conveying pipe (2), a feeding hopper (22) is fixedly connected to the left side of the top of the conveying pipe (2), and a discharging port (25) is fixedly connected to the right side of the bottom of the conveying pipe (2).

Feed inlet (26) have been seted up in top left side of mould (3), the bottom sliding connection of mould (3) has bottom plate (10), fixedly connected with (50) in the middle of the inner chamber bottom of base (1), the inside rotation of (50) is connected with two-way threaded rod (51), the both ends rotation of two-way threaded rod (51) are connected with fixed block (53), the both sides threaded connection of two-way threaded rod (51) has screw slider (52), the top rotation of screw slider (52) is connected with swivel plate (54), the top rotation of swivel plate (54) is connected with slider (55), the right-hand member fixedly connected with bevel gear (57), the inner chamber bottom of base (1) just is located the right side fixedly connected with motor three (59) of fixed block (53).

2. An automatic demolding injection molding apparatus as claimed in claim 1, wherein: the surface transmission of right runner (45) is connected with V belt (47), the lower extreme of V belt (47) is connected with the surface transmission of runner (48).

3. An automatic demolding injection molding apparatus as claimed in claim 1, wherein: the left side of the clamping frame (4) is movably sleeved with a second threaded sleeve (42), and the inside of the second threaded sleeve (42) is in threaded connection with the surface of a second threaded rod (43).

4. An automatic demolding injection molding apparatus as claimed in claim 3, wherein: the left side of the second thread bush (42) is fixedly connected with a second clamping block (41), and the left side of the second clamping block (41) is mutually overlapped with the right side of the base (1).

5. An automatic demolding injection molding apparatus as claimed in claim 1, wherein: the left side of the bottom of the conveying pipe (2) is fixedly connected with a threaded sleeve (27), and the inside of the threaded sleeve (27) is in threaded connection with the surface of a threaded rod (28).

6. An automatic demolding injection molding apparatus as claimed in claim 1, wherein: the top of the straight rod (11) is fixedly connected with a spring (13), and the top of the spring (13) is fixedly connected with the top of the inner cavity of the straight sleeve (12).

7. An automatic demolding injection molding apparatus as claimed in claim 1, wherein: a sliding groove (56) is formed in the bottom of the bottom plate (10), and the inside of the sliding groove (56) is connected with the upper end of the sliding block (55) in a sliding mode.

8. An automatic demolding injection molding apparatus as claimed in claim 1, wherein: and the top of the rotating shaft of the motor III (59) is fixedly connected with a bevel gear II (58), and the left end of the bevel gear II (58) is meshed with the upper end of the bevel gear (57).