CN115519727A - Plastic pipe production equipment and production method thereof - Google Patents

Abstract

The invention discloses a plastic pipe production device and a production method thereof, and the plastic pipe production device comprises an injection molding machine and a feed inlet arranged at the top of the injection molding machine, wherein a mixing assembly and a driven assembly for controlling the mixing assembly are arranged inside the feed inlet, the mixing assembly comprises a protective cover, a motor, a stirring rod, a material receiving disc, a support rod, a baffle plate and a torsion spring A, a feed frame is fixed at the top of the feed inlet, a heating pipe is arranged inside the feed frame, a sliding groove is formed in the inner side of the feed inlet, the driven assembly comprises a sleeve, the sleeve is penetrated through by an output shaft of the motor and is fixed with the output shaft of the motor, an arc-shaped sliding groove is formed in the surface of the sleeve, and when the plastic pipe production device is processed, hot melting treatment can be firstly carried out on raw materials, and the hot melting raw materials can be stirred and mixed, so that the raw materials cannot cause a large load on a screw rod of the injection molding machine after entering the inside of the injection molding machine, and the service life of the screw rod is influenced.

Description

Plastic pipe production equipment and production method thereof

Technical Field

The invention relates to the field of plastic pipe production, in particular to plastic pipe production equipment and a production method thereof.

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 process of plasticizing and forming a plastic pipe by using the conventional injection molding machine, polyethylene or polypropylene granules are used, and pure granules are used for processing, so that the load can be caused on a processing screw rod of the injection molding machine, the service life of the screw rod can be reduced, and the working efficiency is low; in view of this, we propose a plastic pipe production facility and a production method thereof.

Disclosure of Invention

The invention mainly aims to provide plastic pipe production equipment and a production method thereof, and solves the problems in the background technology.

In order to achieve the purpose, the invention provides plastic pipe production equipment, which comprises an injection molding machine and a feeding hole arranged at the top of the injection molding machine, wherein a mixing assembly and a driven assembly for controlling the mixing assembly are arranged in the feeding hole, and the mixing assembly comprises:

the top of the injection molding machine is fixedly provided with a protective cover;

the motor is fixed on the inner wall of the protective cover, and an output shaft of the motor penetrates through the protective cover and is rotationally connected with the protective cover;

the stirring rod is fixed on the surface of the output shaft of the motor;

the output shaft of the motor penetrates through the material receiving disc and is rotationally connected with the material receiving disc, and an annular sliding groove is formed in the bottom of the material receiving disc;

the support rod is fixed at the top of the injection molding machine, and the top of the support rod is slidably arranged at the inner side of the annular chute at the bottom of the material receiving disc;

the top of the material receiving disc is hinged with a baffle;

the side face of the material receiving disc is fixedly provided with the torsion spring A, and one end, far away from the material receiving disc, of the torsion spring A is fixed with the baffle.

Optionally, a feeding frame is fixed to the top of the feeding port, and a heating pipe is arranged on the inner side of the feeding frame.

Optionally, a chute is formed in the inner side of the feed inlet.

Optionally, driven subassembly includes the sleeve, the sleeve is run through by the output shaft of motor and fixed with the output shaft of motor, the arc spout has been seted up on telescopic surface, the inboard slidable mounting of sleeve surface arc spout has the slide bar, the slide bar run through the horizontal pole and with horizontal pole sliding connection, the right side of horizontal pole is fixed with spring A, spring A keeps away from the one end of horizontal pole fixed with the slide bar, the left side slidable mounting of horizontal pole is in the spout of feed inlet inboard, the bottom of horizontal pole is fixed with spring B, the one end that spring B kept away from the horizontal pole is fixed in the spout of feed inlet inboard, the top of horizontal pole is fixed with the montant, the montant runs through the ejector pin and with ejector pin sliding connection, the bottom of ejector pin is fixed with spring C, the one end that the ejector pin was kept away from to spring C is fixed with the montant.

Optionally, the inside of feed inlet is provided with removes the subassembly, it includes L type pole to remove the subassembly, L type pole is fixed in the bottom of horizontal pole, L type pole run through by the kelly and with kelly sliding connection, the bottom of L type pole is fixed with spring D, spring D keeps away from the one end of L type pole and fixes with the kelly, the top of L type pole is fixed with the dead lever, the top of dead lever articulates there is branch.

Optionally, the top of injection molding machine is fixed with L type connecting rod, the bottom of L type connecting rod articulates there is the inserted bar, the bottom of L type connecting rod is fixed with torsional spring B, the one end that L type connecting rod was kept away from to torsional spring B is fixed with the inserted bar, the right side of L type connecting rod is fixed with L type push rod, L type push rod runs through L type pole.

Optionally, a triangular groove is formed in the top of the sliding rod, and a clamping groove is formed in the bottom of the sliding rod.

Optionally, the output shaft of motor runs through the ball and is fixed with the ball, the bottom of take-up (stock) pan is fixed with the elasticity telescopic link, the one end that the take-up (stock) pan was kept away from to the elasticity telescopic link is fixed with the disc, the disc is run through by the output shaft of motor.

Optionally, the plastic pipe production method comprises the following steps:

step one, hot melting, namely putting the raw materials into a feeding frame, and simultaneously starting a heating pipe to carry out hot melting treatment on the raw materials;

step two, fully mixing, starting a motor, driving a stirring rod to rotate by the motor, enabling the hot-melted raw materials to fall into a material receiving disc, and stirring the raw materials by the stirring rod;

step three, injection molding, wherein a motor drives a sleeve to rotate together, a sliding rod drives a transverse rod to move upwards, the transverse rod drives a vertical rod and an ejector rod to move upwards along with continuous upward movement of the transverse rod, the ejector rod pushes the disc to move upwards against the bottom of the disc after moving upwards for a certain distance, a ball is clamped into a through hole in the center of the disc, the motor drives the disc to rotate together, the disc drives a receiving disc to rotate together through an elastic telescopic rod, the receiving disc drives a baffle to rotate, the baffle rotates and opens at a position hinged with the receiving disc under the action of centrifugal force, the baffle cannot continuously block raw materials at the top of the receiving disc, the raw materials are thrown to the inner side of a feeding hole along with continuous rotation of the receiving disc, the raw materials fall into the injection molding machine along the feeding hole, and the injection molding machine is started to perform injection molding;

step four, releasing, wherein the vertical rods extrude the spring C along with the continuous upward movement of the cross rods, the upward movement of the cross rods cannot be influenced, the inserted rods are inserted into triangular grooves in the tops of the slide rods after the slide rods move upwards for a certain distance, when the slide rods continue to move upwards, the inserted rods push the slide rods to move leftwards, the slide rods are withdrawn from arc-shaped sliding grooves in the surfaces of the sleeves, the slide rods are separated from the sleeves, clamping grooves in the bottoms of the slide rods just move to the positions of the clamped rods, the clamping rods are inserted into the clamping grooves in the bottoms of the slide rods under the action of the springs D to limit the slide rods, meanwhile, the cross rods drive the slide rods to move downwards to reset under the action of the springs B, the vertical rods and the ejector rods are driven by the cross rods to move downwards, the discs are not propped against each other, the discs move downwards under the action of the elastic telescopic rods, the round balls are not clamped in through holes in the centers of the discs, the discs stop rotating, the material receiving discs stop rotating, and the baffle rotates to reset at the positions hinged with the material receiving discs under the action of the torsion springs A;

and step five, resetting, wherein after the cross rod drives the sliding rod to be completely reset, the L-shaped push rod can be abutted against the bottom of the supporting rod, so that the supporting rod rotates clockwise at a position hinged with the fixed rod, the supporting rod abuts against the clamping rod to push the clamping rod to move downwards, the clamping rod is withdrawn from the clamping groove at the bottom of the sliding rod to relieve the limit of the sliding rod, the sliding rod moves rightwards under the action of the spring A, at the moment, along with the continuous rotation of the sleeve, when the arc-shaped sliding groove on the surface of the sleeve rotates to the position of the sliding rod, the sliding rod is inserted into the arc-shaped sliding groove on the surface of the sleeve, and the resetting is completed.

Compared with the prior art, the invention has the following beneficial effects:

(1) According to the plastic pipe production equipment and the production method thereof, through the arranged mixing assembly, the driven assembly and the removing assembly, during processing, hot melting treatment can be performed on raw materials firstly, and the hot-melted raw materials can be stirred and mixed, so that after the raw materials enter the interior of the injection molding machine, great burden can not be caused on a screw rod of the injection molding machine, and the service life of the screw rod is not influenced.

(2) After hot-melted raw materials enter the injection molding machine, the working efficiency of the injection molding machine can be further improved, and the production speed of the plastic pipe is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional front view of the present invention;

FIG. 3 is an enlarged structural view A in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of B of FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the structure C in FIG. 3 according to the present invention;

FIG. 6 is an enlarged view of D in FIG. 3 according to the present invention;

FIG. 7 is an enlarged view of E in FIG. 3 according to the present invention;

FIG. 8 is a schematic view of the inner side chute structure of the feed inlet of the present invention;

FIG. 9 is a schematic view of the structure of the annular chute at the bottom of the take-up pan of the present invention;

FIG. 10 is a schematic diagram of the structure of the central through hole of the disc according to the present invention.

The reference numbers illustrate: 1. an injection molding machine; 2. a feed inlet; 3. a mixing assembly; 31. a motor; 32. a protective cover; 33. a stirring rod; 34. a take-up pan; 35. a stay bar; 36. a baffle plate; 37. a torsion spring A; 4. a driven assembly; 41. a sleeve; 42. a slide bar; 43. a cross bar; 44. a spring A; 45. a spring B; 46. a vertical rod; 47. a top rod; 48. a spring C; 5. releasing the component; 51. an L-shaped rod; 52. a clamping rod; 53. a spring D; 54. fixing the rod; 55. a strut; 56. an L-shaped connecting rod; 57. a rod is inserted; 58. a torsion spring B; 59. an L-shaped push rod; 6. a feeding frame; 7. heating a tube; 8. a ball; 9. an elastic telescopic rod; 10. a disk.

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions relating to "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 10, the present invention provides a plastic pipe production apparatus, which includes an injection molding machine 1 and a feed inlet 2 disposed at the top of the injection molding machine 1, wherein a mixing assembly 3 and a driven assembly 4 for controlling the mixing assembly 3 are disposed inside the feed inlet 2.

In the embodiment of the invention, the mixing component 3 comprises a protective cover 32, the protective cover 32 is fixed on the top of the injection molding machine 1, the motor 31 is fixed on the inner wall of the protective cover 32, the output shaft of the motor 31 penetrates through the protective cover 32 and is rotatably connected with the protective cover 32, the stirring rod 33 is fixed on the surface of the output shaft of the motor 31, the output shaft of the motor 31 penetrates through the receiving tray 34 and is rotatably connected with the receiving tray 34, the bottom of the receiving tray 34 is provided with an annular chute, the support rod 35 is fixed on the top of the injection molding machine 1, the top of the support rod 35 is slidably mounted in the inner side of the annular chute at the bottom of the receiving tray 34, the top of the support rod 35 is made of rubber, a certain friction force is generated between the support rod 35 and the receiving tray 34, the receiving tray 34 can rotate only when being subjected to a certain external force, the top of the receiving tray 34 is hinged with a baffle 36, a torsion spring a37 is fixed on the side surface of the receiving tray 34, and one end of the torsion spring a37, which is far away from the receiving tray 34, is fixed with the baffle 36.

Particularly, mixing component 3 includes safety cover 32, motor 31, puddler 33, take-up (stock) pan 34, vaulting pole 35, baffle 36 and torsional spring A37, and the top of feed inlet 2 is fixed with feed frame 6, and the inboard of feed frame 6 is provided with heating pipe 7, can heat the raw materials of putting into feed frame 6, carries out the hot melt.

In one embodiment of the present invention, a chute is formed in the back side of the feed port 2.

With reference to fig. 1 to 10, the driven component 4 includes a sleeve 41, the sleeve 41 is penetrated through by an output shaft of the motor 31 and fixed to the output shaft of the motor 31, an arc chute is formed on a surface of the sleeve 41, a sliding rod 42 is slidably mounted inside the arc chute on the surface of the sleeve 41, the sliding rod 42 penetrates through the cross rod 43 and is slidably connected to the cross rod 43, a spring a44 is fixed on a right side of the cross rod 43, one end of the spring a44 away from the cross rod 43 is fixed to the sliding rod 42, a left side of the cross rod 43 is slidably mounted in the chute on the inner side of the feed port 2, a spring B45 is fixed at a bottom of the cross rod 43, one end of the spring B45 away from the cross rod 43 is fixed to the chute on the inner side of the feed port 2, a vertical rod 46 is fixed at a top of the cross rod 43, the vertical rod 46 penetrates through the push rod 47 and is slidably connected to the push rod 47, a spring C48 is fixed at the bottom of the push rod 47, one end of the spring C48 away from the push rod 47 is fixed to the vertical rod 46, and when the motor 31 drives the sleeve 41 to rotate, the slide rod 42 can drive the cross rod 43 to move upward along the arc chute on the surface of the sleeve 41.

In addition, a releasing assembly 5 is arranged inside the feed inlet 2, the releasing assembly 5 comprises an L-shaped rod 51, the L-shaped rod 51 is fixed at the bottom of the cross rod 43, the L-shaped rod 51 is penetrated by the clamping rod 52 and is slidably connected with the clamping rod 52, a spring D53 is fixed at the bottom of the L-shaped rod 51, one end of the spring D53, which is far away from the L-shaped rod 51, is fixed with the clamping rod 52, the top of the L-shaped rod 51 is fixed with a fixing rod 54, the top of the fixing rod 54 is hinged with a supporting rod 55, the top of the injection molding machine 1 is fixed with an L-shaped connecting rod 56, the bottom of the L-shaped connecting rod 56 is hinged with an inserting rod 57, the bottom of the L-shaped connecting rod 56 is fixed with a torsion spring B58, one end of the torsion B58, which is far away from the L-shaped connecting rod 56, is fixed with the inserting rod 57, the right side of the L-shaped connecting rod 56 is fixed with an L-shaped push rod 59, the L-shaped push rod 51, the L-shaped push rod 59 can be abutted against the bottom of the supporting rod 55, so that the supporting rod 55 can rotate clockwise at the position hinged with the fixing rod 54, and the supporting rod 55 can be abutted against the clamping rod 52 to push the clamping rod 52 to move the clamping rod 52 downwards.

In order to control the sliding rod 42, a triangular groove is formed in the top of the sliding rod 42, a clamping groove is formed in the bottom of the sliding rod 42, after the sliding rod 42 moves upwards for a certain distance, the inserting rod 57 can be inserted into the triangular groove in the top of the sliding rod 42, when the sliding rod 42 continues to move upwards, the inserting rod 57 can support the sliding rod 42 to move leftwards, when the sliding rod 42 moves leftwards for a certain distance, the clamping groove in the bottom of the sliding rod 42 moves to the position of the clamping rod 52, the clamping rod 52 is inserted into the clamping groove in the bottom of the sliding rod 42 to limit the sliding rod 42 under the action of the spring D53, the sliding rod 42 is separated from the sleeve 41 at the moment, and under the action of the spring B45, the sliding rod 42 is driven by the cross rod 43 to move downwards for resetting.

In the embodiment of the invention, the output shaft of the motor 31 penetrates through the round ball 8 and is fixed with the round ball 8, the elastic telescopic rod 9 is fixed at the bottom of the material receiving disc 34, one end of the elastic telescopic rod 9, which is far away from the material receiving disc 34, is fixed with the disc 10, the disc 10 is penetrated through by the output shaft of the motor 31, a through hole is formed in the center of the disc 10, when the disc 10 moves upwards, the round ball 8 can be clamped into the through hole in the center of the disc 10, so that the motor 31 can drive the disc 10 to rotate together, and the disc 10 drives the material receiving disc 34 to rotate together through the elastic telescopic rod 9.

In an embodiment of the present invention, the plastic pipe production method comprises the following steps:

step one, hot melting, namely putting raw materials into a feeding frame 6, and simultaneously starting a heating pipe 7 to carry out hot melting treatment on the raw materials;

step two, fully mixing, starting the motor 31, driving the stirring rod 33 to rotate by the motor 31, enabling the hot-melted raw materials to fall into the material receiving disc 34, and stirring the raw materials by the stirring rod 33;

step three, injection molding, wherein the motor 31 drives the sleeve 41 to rotate together, the sliding rod 42 drives the cross rod 43 to move upwards, the cross rod 43 drives the vertical rod 46 and the ejector rod 47 to move upwards along with continuous upward movement of the cross rod 43, after the ejector rod 47 moves upwards for a certain distance, the ejector rod 47 pushes the disc 10 to move upwards against the bottom of the disc 10, the round ball 8 is clamped in a through hole in the center of the disc 10, the motor 31 drives the disc 10 to rotate together, the disc 10 drives the receiving disc 34 to rotate together through the elastic telescopic rod 9, the receiving disc 34 drives the baffle plate 36 to rotate, under the action of centrifugal force, the baffle plate 36 rotates and opens at a position hinged with the receiving disc 34, the baffle plate 36 cannot continuously block the raw material at the top of the receiving disc 34, along with continuous rotation of the receiving disc 34, the raw material is thrown to the inner side of the feed inlet 2 and falls into the injection molding machine 1 along the feed inlet 2, and the injection molding machine 1 is started to perform injection molding;

step four, releasing, wherein the vertical rod 46 extrudes the spring C48 along with the continuous upward movement of the cross rod 43, the upward movement of the cross rod 43 cannot be influenced, after the slide rod 42 moves upwards for a certain distance, the inserted link 57 is inserted into the triangular groove at the top of the slide rod 42, when the slide rod 42 continues to move upwards, the inserted link 57 pushes the slide rod 42 to move leftwards, the slide rod 42 withdraws from the arc-shaped sliding groove on the surface of the sleeve 41, the slide rod 42 is separated from the sleeve 41, the clamping groove at the bottom of the slide rod 42 just moves to the position of the clamping rod 52, under the action of the spring D53, the clamping rod 52 is inserted into the clamping groove at the bottom of the slide rod 42 to limit the slide rod 42, meanwhile, under the action of the spring B45, the cross rod 43 drives the slide rod 42 to move downwards to reset, the cross rod 43 drives the vertical rod 46 and the ejector rod 47 to move downwards, the disc 10 is not propped against any more, under the action of the elastic telescopic rod 9, the disc 10 moves downwards, the ball 8 is not clamped in the through hole in the center of the disc 10, the disc 10 stops rotating, the receiving disc 34 stops rotating, and the receiving disc 34 stops rotating and then stops rotating and the baffle 36 is reset with the position hinged with the receiving disc 34 under the action of the torsion spring A37;

and step five, resetting, wherein after the cross rod 43 drives the sliding rod 42 to be completely reset, the L-shaped push rod 59 can abut against the bottom of the support rod 55, so that the support rod 55 rotates clockwise at a position hinged with the fixed rod 54, the support rod 55 abuts against the clamping rod 52 to push the clamping rod 52 to move downwards, the clamping rod 52 exits from the clamping groove at the bottom of the sliding rod 42, the limit on the sliding rod 42 is released, the sliding rod 42 moves rightwards under the action of the spring A44, the sliding rod 42 rotates continuously along with the sleeve 41 at the moment, and when the arc-shaped sliding groove on the surface of the sleeve 41 rotates to the position of the sliding rod 42, the sliding rod 42 is inserted into the arc-shaped sliding groove on the surface of the sleeve 41, and the resetting is completed.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. The utility model provides a plastics tubular product production facility, includes injection molding machine (1) and sets up feed inlet (2) at injection molding machine (1) top, its characterized in that: the inside of feed inlet (2) is provided with driven subassembly (4) of mixing subassembly (3) and control mixing subassembly (3), mixing subassembly (3) include:

the top of the injection molding machine (1) is fixed with a protective cover (32);

the motor (31) is fixed on the inner wall of the protective cover (32), and an output shaft of the motor (31) penetrates through the protective cover (32) and is rotatably connected with the protective cover (32);

the stirring rod (33), the stirring rod (33) is fixed on the surface of the output shaft of the motor (31);

the output shaft of the motor (31) penetrates through the material receiving disc (34) and is rotatably connected with the material receiving disc (34), and an annular sliding groove is formed in the bottom of the material receiving disc (34);

the support rod (35) is fixed at the top of the injection molding machine (1), and the top of the support rod (35) is slidably mounted at the inner side of the annular chute at the bottom of the material receiving tray (34);

the top of the receiving tray (34) is hinged with a baffle (36);

the side of the material receiving disc (34) is fixed with a torsion spring A (37), and one end, far away from the material receiving disc (34), of the torsion spring A (37) is fixed with the baffle (36).

2. The plastic pipe production apparatus according to claim 1, wherein: the top of feed inlet (2) is fixed with feeding frame (6), the inboard of feeding frame (6) is provided with heating pipe (7).

3. The plastic pipe production apparatus according to claim 1, wherein: the inner side of the feed inlet (2) is provided with a sliding groove.

4. A plastic pipe production apparatus as claimed in claim 3, wherein: driven component (4) include sleeve (41), sleeve (41) are run through by the output shaft of motor (31) and are fixed with the output shaft of motor (31), the arc spout has been seted up on the surface of sleeve (41), the inboard slidable mounting of sleeve (41) surface arc spout has slide bar (42), slide bar (42) run through horizontal pole (43) and with horizontal pole (43) sliding connection, the right side of horizontal pole (43) is fixed with spring A (44), the one end that horizontal pole (43) were kept away from in spring A (44) is fixed with slide bar (42), the left side slidable mounting of horizontal pole (43) is in the spout of feed inlet (2) inboard, the bottom of horizontal pole (43) is fixed with spring B (45), the one end that horizontal pole (43) were kept away from in spring B (45) is fixed in the spout of feed inlet (2) inboard, the top of horizontal pole (43) is fixed with montant (46), montant (46) run through ejector pin (47) and with ejector pin (47) sliding connection, the bottom of ejector pin (47) is fixed with spring C (48), the ejector pin (47) is fixed with the one end of ejector pin (47).

5. The plastic pipe production apparatus according to claim 4, wherein: the inside of feed inlet (2) is provided with removes subassembly (5), it includes L type pole (51) to remove subassembly (5), the bottom at horizontal pole (43) is fixed in L type pole (51), L type pole (51) are run through by card pole (52) and with kelly (52) sliding connection, the bottom of L type pole (51) is fixed with spring D (53), the one end and the kelly (52) that L type pole (51) were kept away from in spring D (53) are fixed, the top of L type pole (51) is fixed with dead lever (54), the top of dead lever (54) articulates there is branch (55).

6. The plastic pipe production apparatus according to claim 5, wherein: the top of injection molding machine (1) is fixed with L type connecting rod (56), the bottom of L type connecting rod (56) articulates there is inserted bar (57), the bottom of L type connecting rod (56) is fixed with torsional spring B (58), the one end that L type connecting rod (56) were kept away from in torsional spring B (58) is fixed with inserted bar (57), the right side of L type connecting rod (56) is fixed with L type push rod (59), L type push rod (59) run through L type pole (51).

7. The plastic pipe production apparatus according to claim 4, wherein: the top of the sliding rod (42) is provided with a triangular groove, and the bottom of the sliding rod (42) is provided with a clamping groove.

8. The plastic pipe production apparatus according to claim 1, wherein: the output shaft of motor (31) runs through ball (8) and is fixed with ball (8), the bottom of take-up (34) is fixed with elasticity telescopic link (9), the one end that take-up (34) was kept away from in elasticity telescopic link (9) is fixed with disc (10), disc (10) are run through by the output shaft of motor (31).

9. A method for producing plastic pipes is characterized in that: the production method of the plastic pipe comprises the following steps:

step one, hot melting, namely putting the raw materials into a feeding frame (6), and simultaneously starting a heating pipe (7) to carry out hot melting treatment on the raw materials;

step two, fully mixing, starting a motor (31), driving a stirring rod (33) to rotate by the motor (31), enabling the hot-melted raw materials to fall into a material receiving disc (34), and stirring the raw materials by the stirring rod (33);

step three, injection molding, wherein the motor (31) drives the sleeve (41) to rotate together, the sliding rod (42) drives the cross rod (43) to move upwards, the cross rod (43) drives the vertical rod (46) and the ejector rod (47) to move upwards along with continuous upward movement of the cross rod (43), after the ejector rod (47) moves upwards for a certain distance, the ejector rod (47) pushes the disc (10) to move upwards against the bottom of the disc (10), the round ball (8) is clamped in a through hole in the center of the disc (10), the motor (31) drives the disc (10) to rotate together, the disc (10) drives the material receiving disc (34) to rotate together through the elastic telescopic rod (9), the material receiving disc (34) drives the baffle (36) to rotate, under the action of centrifugal force, the baffle (36) rotates and opens at the position hinged with the material receiving disc (34), the baffle (36) cannot continue to block the raw materials at the top of the material receiving disc (34), the raw materials rotate continuously along with throwing of the material receiving disc (34), the raw materials are conveyed to the inner side of the feed inlet (2), the injection molding machine (1) and injection molding is started;

step four, releasing, wherein the vertical rod 46 extrudes the spring C48 along with the continuous upward movement of the cross rod 43, the upward movement of the cross rod 43 cannot be influenced, after the sliding rod 42 moves upwards for a certain distance, the inserted rod (57) is inserted into a triangular groove at the top of the sliding rod (42), when the sliding rod (42) continues to move upwards, the inserted rod (57) pushes the sliding rod (42) to move leftwards, the sliding rod (42) withdraws from an arc-shaped sliding groove in the surface of the sleeve (41), the sliding rod (42) is separated from the sleeve (41), a clamping groove at the bottom of the sliding rod (42) just moves to the position of the clamping rod (52), under the action of the spring D (53), the clamping rod (52) is inserted into the clamping groove at the bottom of the sliding rod (42) to limit the sliding rod (42), meanwhile, under the action of the spring B (45), the cross rod (43) drives the sliding rod (42) to move downwards for resetting, the cross rod (43) drives the sliding rod (46) and the ejector rod (47) to move downwards, the disc (10) is not clamped to move downwards under the action of the elastic rod (9), the disc (10), the through hole (34) stops rotating of the disc (34), and the through hole (34) and the through which the disc (34) rotates;

and step five, resetting, wherein after the cross rod (43) drives the sliding rod (42) to be completely reset, the L-shaped push rod (59) can abut against the bottom of the support rod (55), so that the support rod (55) rotates clockwise at a position hinged with the fixed rod (54), the support rod (55) abuts against the clamping rod (52) to push the clamping rod (52) to move downwards, the clamping rod (52) withdraws from a clamping groove in the bottom of the sliding rod (42), the limiting on the sliding rod (42) is relieved, the sliding rod (42) moves rightwards under the action of the spring A (44), and at the moment, along with the continuous rotation of the sleeve (41), when the arc-shaped sliding groove in the surface of the sleeve (41) rotates to the position of the sliding rod (42), the sliding rod (42) is inserted into the arc-shaped sliding groove in the surface of the sleeve (41), and the resetting is completed.

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