Injection molding device for PVC pipe processing

Abstract

The invention provides an injection molding device for PVC pipe machining, and relates to the technical field of injection molding pipelines, the injection molding device comprises an assembly base, and a water tank is fixedly arranged at the top of the assembly base; a stand column is fixedly arranged on the front side of the top of the assembling base, and a melting bin is fixedly arranged on the top of the stand column and internally provided with a heater. According to the feeding base and the inner film pipe of each embodiment, the rapid shaping and demolding effects are provided, in the lifting process of the first feeding base, conveying of injection molding liquid can be achieved, in cooperation with rapid condensation of the inner film pipe, the injection molding liquid can be rapidly formed, and the injection molding efficiency is improved. The injection molding liquid is supplemented when the feeding base descends, the position of the injection molding liquid can be kept inconvenient, the shaped injection molding pipe can be lifted when the feeding base is lifted, then manufacturing of the pipeline is achieved, and the outer mold pipe continuously rotates in the process to guarantee demolding. The problem that an existing injection molding device lacks the rapid shaping and demolding combination function is solved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding pipelines, in particular to an injection molding device used for processing PVC pipes. Background Art

[0002] The injection molding device mainly transports the injection liquid through a screw propeller or a pump body and transports it to the mold for shaping processing. When injecting pipes, the injection molding machine is required to continuously extrude the pipes and then process them into shape.

[0003] However, the injection molding devices currently used mainly perform injection molding through continuous extrusion. It is not convenient to assist rapid shaping and maintain the demoulding function during continuous injection molding, which is not conducive to rapid cycle cooling and fixed-point cutting, and requires separate cutting. Summary of the invention

[0004] In view of this, the present invention provides an injection molding device for PVC pipe processing, which has a carrier and provides a receiving function. If a cooling failure occurs, the injection liquid will fall into the carrier when the injection is discharged, avoiding safety hazards.

[0005] The present invention provides an injection molding device for PVC pipe processing, which specifically comprises: an assembly seat, a water tank is fixedly arranged on the top of the assembly seat; a column is fixedly arranged on the front side of the top of the assembly seat, a melting bin is fixedly arranged on the top of the column, and a heater is arranged in the melting bin; a rotating cover is hingedly arranged on the top of the melting bin, and a one-way air valve is arranged in the middle of the rotating cover; a strip channel is integrally arranged on the rear side of the bottom of the melting bin; a control seat, the control seat is fixedly arranged on the top of the water tank; a guide rod column is fixedly arranged on the top of the control seat, and an upper seat is fixedly arranged on the top of the guide rod column; a transmission motor, the transmission motor is fixedly arranged on the front side of the top of the upper seat; a main gear plate, the main gear plate is transmission-connected to the bevel gear outside the transmission motor shaft; the middle of the top of the main gear plate An outer mold tube is integrally arranged in the middle; an inner film tube, the inner film tube is fixedly arranged on the top of the control seat, and the interior of the inner film tube is a single-circulation channel; a side transmission frame, the side transmission frame is fixedly arranged on both sides of the control seat; a piston cylinder, the piston cylinder is fixedly arranged on the top rear side of the control seat; a feed seat, the feed seat is slidably arranged on the outside of the guide rod column; a carrier, the carrier is fixedly arranged on the outside of the outer mold tube, and an assembly frame is fixedly arranged on the top of the carrier; a bearing frame, the bearing frame is fixedly arranged on the top of the assembly frame, the interior of the bearing frame is a hollow structure, and air holes are opened on the outside of the bearing frame; a swivel seat, the swivel seat is rotatably arranged on the outside of the bearing frame in cooperation with two sets of airtight bearings and wraps the air holes; a motor seat, the motor seat is fixedly arranged on the top of the carrier.

[0006] Optionally, the control seat also includes: a roller shaft, four groups of roller shafts are rotatably arranged on the top of the control seat, and a disc-shaped roller is fixedly arranged on the top outer side of the roller shaft; a V-shaped groove is opened on the inner wall of the main gear plate, and the V-shaped groove is fitted on the outside of the disc-shaped roller.

[0007] Optionally, the inner membrane tube is connected to two groups of pipes, the front pipe is connected to the upper rear side of the water tank, the rear pipe is connected to the bottom of the piston cylinder, and another group of pipes is provided at the bottom of the piston cylinder and connected to the lower rear side of the water tank. A one-way valve is connected in the middle of the three groups of pipes.

[0008] Optionally, the side transmission frame includes: a side connecting shaft, a side connecting shaft is rotatably arranged on the upper outer side of the side transmission frame; a driven shaft, a driven shaft is rotatably arranged on the top of the side transmission frame, and the driven shaft and the side connecting shaft are connected by a bevel gear transmission; a transmission wheel, transmission wheels are rotatably arranged on adjacent surfaces of two groups of side transmission frames, and eccentric rods are integrally arranged on adjacent surfaces of the two groups of transmission wheels; the transmission wheel and the side connecting shaft are connected by a bevel gear transmission.

[0009] Optionally, the feed seat includes: a guide groove, guide grooves are provided on both sides of the feed seat, and the eccentric rod of the transmission wheel slides in the guide groove; an outer mold sleeve, an outer mold sleeve is integrally arranged in the middle of the feed seat, and an inner mold sleeve is fixedly arranged inside the outer mold sleeve; a connecting pipe, a connecting pipe is connected to the lower outer side of the outer mold sleeve, a check valve A is connected to the middle of the connecting pipe, a telescopic pipe is connected to the bottom of the front side of the connecting pipe, a check valve B is connected to the bottom of the telescopic pipe, and the check valve B is connected to the top of the strip channel.

[0010] Optionally, the carrier also includes: auxiliary rubber rollers, four groups of auxiliary rubber rollers are rotatably arranged on the top of the assembly frame, the four groups of auxiliary rubber rollers are connected by bevel gear transmission, a counting wheel is fixedly arranged on the outer end of the rotating shaft of one group of auxiliary rubber rollers, and the counting wheel is an eccentric wheel; a counting sensor, a counting sensor is fixedly arranged on the top of the assembly frame, and the counting sensor can intermittently fit the counting wheel.

[0011] Optionally, a monitoring fuse is fixedly arranged outside the outer mold tube, the monitoring fuse is a ring structure, and the fracture of the monitoring fuse is arranged as an inclined surface.

[0012] Optionally, the swivel seat includes: side gear plates, the interior of the swivel seat is an intermediate structure, and the outer side of the swivel seat is integrally provided with side gear plates; gas telescopic rods, four groups of gas telescopic rods are connected to the top of the swivel seat, and a cutter is fixedly provided at the telescopic end of the gas telescopic rod.

[0013] Optionally, the motor seat includes: a guide air cylinder, a guide air cylinder is fixedly arranged on the top of the motor seat, a lead screw is rotatably arranged in the guide air cylinder, an octagonal piston is slidably arranged in the guide air cylinder; the lead screw is threadedly connected to the octagonal piston; an air pipe is arranged at the bottom of the guide air cylinder and connected to the bearing frame; a cutting motor is fixedly arranged on the top of the motor seat, a bevel gear is arranged on the rotating shaft of the cutting motor to mesh with the side gear disk, and a bevel gear is arranged on the rotating shaft of the cutting motor to mesh with the top end of the lead screw.

[0014] Beneficial Effects The feed seat and the inner film tube according to each embodiment of the present invention provide a combination of rapid molding and demolding effects. First, during the lifting and lowering of the feed seat, the injection molding liquid can be transported, and in conjunction with the rapid condensation of the inner film tube, the injection molding liquid can be replenished when the feed seat is lowered to maintain the position of the injection molding liquid. When the feed seat is lifted, the molded injection molding tube can be lifted, thereby realizing the manufacturing of the pipeline. The outer mold tube continues to rotate during this process to ensure demolding.

[0015] In addition, the setting of the piston cylinder provides a cooling circulation function. When the piston cylinder contracts, the water inside it is input into the inner membrane tube. The water in the inner membrane tube circulates and is input into the water tank. When the piston cylinder extends, water is directly drawn from the water tank for replenishment, thereby achieving the effect of circulating cooling and hydration.

[0016] In addition, the setting of the swivel seat provides a cut-off function. The formed pipe is output through the auxiliary rubber roller. At the same time, the auxiliary rubber roller drives the counting wheel to cooperate with the counting sensor to count. When the pipe needs to be cut off, the cutting motor can be directly started, and the side gear plate and the lead screw are driven to rotate through the bevel gear, thereby prompting the swivel seat to rotate. The lead screw drives the octagonal piston to descend, and the air in the guide air cylinder is input into the swivel seat, and the air telescopic rod is stretched to make the cutter press against the outer wall of the pipe. The contraction and cutting action is realized while rotating to cut off the pipe; the cutting motor can be reversed to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 A schematic diagram of a three-dimensional structure according to an embodiment of the present invention is shown; Figure 2 It shows an axonometric structural schematic diagram according to an embodiment of the present invention; Figure 3 A schematic diagram of a side view structure according to an embodiment of the present invention is shown; Figure 4 A partial three-dimensional structural schematic diagram according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of a partial side tilt structure according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the three-dimensional structure of a feed seat according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the three-dimensional structure of a main gear disc according to an embodiment of the present invention is shown; Figure 8 It shows a schematic diagram of the overall structure of a carrier according to an embodiment of the present invention; Fig. 9 A schematic diagram of the side structure of a carrier according to an embodiment of the present invention is shown; Fig.10 A schematic diagram of a local enlarged structure of A according to an embodiment of the present invention is shown.

[0020] Reference numerals list 1. Assembly seat; 101. Water tank; 102. Column; 2. Melting chamber; 201. Rotating cover; 202. One-way air valve; 203. Strip channel; 3. Control seat; 301. Guide rod column; 302. Upper seat; 303. Roller shaft; 304. Disc roller; 4. Transmission motor; 5. Main gear plate; 501. V-shaped rotating groove; 502. Outer mold tube; 6. Inner mold tube; 7. Side transmission frame; 701. Side connecting shaft; 702. Driven shaft; 703. Transmission wheel; 8. Piston cylinder; 9. Feed seat; 901. Guide groove; 902. Outer mold sleeve; 90 3. Inner mold sleeve; 904. Connecting pipe; 905. Check valve A; 906. Telescopic pipe; 907. Check valve B; 10. Carrier; 1001. Assembly frame; 1002. Auxiliary rubber roller; 1003. Counting wheel; 1004. Counting sensor; 11. Monitoring fuse; 12. Bearing frame; 1201. Air hole; 13. Turntable; 1301. Side gear disc; 1302. Air telescopic rod; 1303. Cutter; 14. Motor seat; 1401. Guide air cylinder; 1402. Lead screw; 1403. Octagonal piston; 15. Cutting motor. DETAILED DESCRIPTION

[0021] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0022] Example: Please refer to Figures 1 to 10 : The present invention proposes an injection molding device for PVC pipe processing, comprising: an assembly seat 1, a water tank 101 is fixedly arranged on the top of the assembly seat 1; a column 102 is fixedly arranged on the front side of the top of the assembly seat 1, a melting bin 2 is fixedly arranged on the top of the column 102, and a heater is arranged in the melting bin 2; a rotating cover 201 is hingedly arranged on the top of the melting bin 2, and a one-way air valve 202 is arranged in the middle of the rotating cover 201; a strip channel is integrally arranged on the rear side of the bottom of the melting bin 2 203; control seat 3, control seat 3 is fixedly arranged on the top of water tank 101; a guide rod column 301 is fixedly arranged on the top of control seat 3, and an upper seat 302 is fixedly arranged on the top of guide rod column 301; transmission motor 4, transmission motor 4 is fixedly arranged on the top front side of upper seat 302; main gear plate 5, main gear plate 5 is connected with bevel gear outside the rotating shaft of transmission motor 4; an outer mold tube 502 is integrally arranged in the middle of the top of main gear plate 5, and a monitoring device is fixedly arranged outside outer mold tube 502 Fuse 11, the monitoring fuse 11 is an annular structure, and the fracture of the monitoring fuse 11 is set as an inclined surface; the inner film tube 6, the inner film tube 6 is fixedly arranged on the top of the control seat 3, and the interior of the inner film tube 6 is a single circulation channel; the side transmission frame 7, the side transmission frame 7 is fixedly arranged on both sides of the control seat 3; the piston cylinder 8, the piston cylinder 8 is fixedly arranged on the top rear side of the control seat 3; the feed seat 9, the feed seat 9 is slidably arranged on the outside of the guide rod column 301; the carrier 10, the carrier 10 is fixedly arranged on the outside of the outer mold tube 502, and the top of the carrier 10 is fixedly provided with an assembly frame 1001; the bearing frame 12, the bearing frame 12 is fixedly arranged on the top of the assembly frame 1001, the interior of the bearing frame 12 is a hollow structure, and the outer side of the bearing frame 12 is provided with an air hole 1201; the swivel seat 13, the swivel seat 13 is rotatably arranged on the outside of the bearing frame 12 in cooperation with two sets of airtight bearings and wraps the air hole 1201; the motor seat 14, the motor seat 14 is fixedly arranged on the top of the carrier 10.

[0023] In addition, according to an embodiment of the present invention, reference Figure 7 The control seat 3 also includes: a roller shaft 303. The top of the control seat 3 is equipped with four groups of roller shafts 303 for rotation in cooperation with double-row tapered roller bearings. A disc-shaped roller 304 is fixedly arranged on the outer side of the top of the roller shaft 303. A V-shaped groove 501 is opened on the inner wall of the main gear plate 5. The V-shaped groove 501 is fitted on the outside of the disc-shaped roller 304 to maintain the limited rotation effect.

[0024] In addition, according to an embodiment of the present invention, reference Figure 3 The inner membrane tube 6 is connected with two groups of pipes. The front pipe is connected with the upper rear side of the water tank 101, and the rear pipe is connected with the bottom of the piston cylinder 8. Another group of pipes is set at the bottom of the piston cylinder 8 and connected with the lower rear side of the water tank 101. A one-way valve is connected in the middle of the three groups of pipes.

[0025] In addition, according to an embodiment of the present invention, reference Figure 5The side transmission frame 7 includes: a side connecting shaft 701, a side connecting shaft 701 is rotatably arranged on the upper outer side of the side transmission frame 7; a driven shaft 702, a driven shaft 702 is rotatably arranged on the top of the side transmission frame 7, and the driven shaft 702 is connected to the side connecting shaft 701 by a bevel gear transmission; a transmission wheel 703, two groups of adjacent surfaces of the side transmission frames 7 are rotatably arranged with transmission wheels 703, and adjacent surfaces of the two groups of transmission wheels 703 are integrally provided with eccentric rods; the transmission wheel 703 is connected to the side connecting shaft 701 by a bevel gear transmission.

[0026] In addition, according to an embodiment of the present invention, reference Figure 6 The feed seat 9 includes: a guide groove 901, guide grooves 901 are provided on both sides of the feed seat 9, and the eccentric rod of the transmission wheel 703 slides in the guide groove 901; an outer mold sleeve 902, an outer mold sleeve 902 is integrally provided in the middle of the feed seat 9, and an inner mold sleeve 903 is fixedly provided in the outer mold sleeve 902; a connecting pipe 904, a connecting pipe 904 is connected to the lower outer side of the outer mold sleeve 902, a check valve A905 is connected to the middle of the connecting pipe 904, and an extension valve A906 is connected to the bottom of the front side of the connecting pipe 904. The expansion tube 906 is connected to a check valve B907 at the bottom thereof, and the check valve B907 is connected to the top of the strip channel 203; the top of the piston cylinder 8 is fixed to the bottom of the feed seat 9, and the feed seat 9 drives the piston cylinder 8 to expand and contract during the lifting process. When the piston cylinder 8 contracts, the water inside it is input into the inner membrane tube 6, and the water in the inner membrane tube 6 circulates and is input into the water tank 101. When the piston cylinder 8 extends, water is directly pumped out from the water tank 101 for replenishment, thereby achieving the effects of circulating cooling and water replenishment.

[0027] In addition, according to an embodiment of the present invention, reference Figure 8-9 The carrier 10 also includes: auxiliary rubber rollers 1002, four groups of auxiliary rubber rollers 1002 are rotatably arranged on the top of the assembly frame 1001, the four groups of auxiliary rubber rollers 1002 are arranged with bevel gear transmission connection, a counting wheel 1003 is fixedly arranged on the outer end of the rotating shaft of one group of auxiliary rubber rollers 1002, and the counting wheel 1003 is an eccentric wheel; a counting sensor 1004, a counting sensor 1004 is fixedly arranged on the top of the assembly frame 1001, and the counting sensor 1004 can intermittently fit the counting wheel 1003.

[0028] In addition, according to an embodiment of the present invention, reference Figure 8-9 The swivel seat 13 includes: a side toothed disc 1301, the interior of the swivel seat 13 is an intermediate structure, and the outer side of the swivel seat 13 is integrally provided with a side toothed disc 1301; a gas telescopic rod 1302, four groups of gas telescopic rods 1302 are connected to the top of the swivel seat 13, and a cutter 1303 is fixedly provided at the telescopic end of the gas telescopic rod 1302.

[0029] In addition, according to an embodiment of the present invention, reference Figure 8-9The motor seat 14 includes: a guide air cylinder 1401, a guide air cylinder 1401 is fixedly arranged above the motor seat 14, a lead screw 1402 is rotatably arranged in the guide air cylinder 1401, an octagonal piston 1403 is slidably arranged in the guide air cylinder 1401; the lead screw 1402 is threadedly connected with the octagonal piston 1403; an air pipe is arranged at the bottom of the guide air cylinder 1401 and is connected to the bearing frame 12; a cutting motor 15 is fixedly arranged on the top of the motor seat 14, and a bevel gear is arranged on the rotating shaft of the cutting motor 15 to mesh with the side gear disc 1301 , the rotating shaft of the cutting motor 15 is meshed with a bevel gear set at the top of the lead screw 1402; start the cutting motor 15, and drive the side gear plate 1301 and the lead screw 1402 to rotate through the bevel gear, thereby causing the rotating seat 13 to rotate, and the lead screw 1402 drives the octagonal piston 1403 to descend, and the air in the guide air cylinder 1401 is input into the rotating seat 13, and the air telescopic rod 1302 is stretched to make the cutter 1303 press against the outer wall of the pipeline, and realize the contraction and cutting action while rotating, so as to cut off the pipeline; reverse the cutting motor 15 to reset it.

[0030] Specific usage and function of this embodiment: In the present invention, when in use, the injection molding raw material is poured into the melting bin 2 to melt, and then the transmission motor 4 is started, the transmission motor 4 drives the main gear plate 5 to rotate through the bevel gear, the main gear plate 5 drives the driven shaft 702 to rotate, the driven shaft 702 drives the side connecting shaft 701 to rotate through the bevel gear, the side connecting shaft 701 drives the transmission wheel 703 to rotate through the bevel gear, and the transmission wheel 703 drives the feed seat 9 to reciprocate up and down; When the feed seat 9 descends, the injection liquid in the telescopic tube 906 passes through the non-return valve A905 and enters the gap between the outer mold sleeve 902 and the inner mold sleeve 903. When the outer mold sleeve 902 and the inner mold sleeve 903 descend, the injection liquid is replenished between the outer mold tube 502 and the inner mold tube 6 to ensure that the position of the injection tube remains unchanged; when the feed seat 9 rises, the telescopic tube 906 is stretched, and the injection liquid passes through the non-return valve B907 and is replenished into the telescopic tube 906. At the same time, the outer mold sleeve 902 and the inner mold sleeve 903 rise, and the already injected part is pushed upward to complete the output. During the rising process, the pipeline continuously exchanges heat with the inner mold tube 6 to quickly cool and shape, and then is discharged from the middle of the top of the outer mold tube 502 and the inner mold tube 6; the outer mold tube 502 rotates continuously to ensure demolding; The feed seat 9 drives the piston cylinder 8 to expand and contract during the lifting process. When the piston cylinder 8 contracts, the water inside it is input into the inner membrane tube 6. The water in the inner membrane tube 6 circulates and is input into the water tank 101. When the piston cylinder 8 extends, water is directly pumped from the water tank 101 for replenishment, thereby achieving the effect of circulating cooling and water replenishment. The formed pipe is output through the auxiliary rubber roller 1002, and at the same time, the auxiliary rubber roller 1002 drives the counting wheel 1003 to cooperate with the counting sensor 1004 to count. When the pipe needs to be cut off, the cutting motor 15 can be directly started, and the side gear plate 1301 and the lead screw 1402 are driven to rotate through the bevel gear, thereby causing the rotating seat 13 to rotate. The lead screw 1402 drives the octagonal piston 1403 to descend, and the air in the guide air cylinder 1401 is input into the rotating seat 13, and the air telescopic rod 1302 is stretched to make the cutter 1303 press against the outer wall of the pipe, and the contraction cutting action is realized while rotating to cut the pipe; the cutting motor 15 can be reversed to reset.

[0031] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0032] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. An injection molding device for PVC pipe processing, characterized in that: include: An assembly seat (1), wherein a water tank (101) is fixedly arranged on the top of the assembly seat (1); a column (102) is fixedly arranged on the front side of the top of the assembly seat (1), a melting chamber (2) is fixedly arranged on the top of the column (102), and a heater is arranged in the melting chamber (2); a rotating cover (201) is hingedly arranged on the top of the melting chamber (2), and a one-way air valve (202) is arranged in the middle of the rotating cover (201); a strip channel (203) is integrally arranged on the rear side of the bottom of the melting chamber (2); a control seat (3), wherein the control The control seat (3) is fixedly arranged on the top of the water tank (101); a guide rod column (301) is fixedly arranged on the top of the control seat (3), and an upper seat (302) is fixedly arranged on the top of the guide rod column (301); a transmission motor (4), the transmission motor (4) is fixedly arranged on the top front side of the upper seat (302); a main gear plate (5), the main gear plate (5) is connected to the bevel gear outside the rotating shaft of the transmission motor (4); an outer mold tube (502) is integrally arranged in the middle of the top of the main gear plate (5); an inner mold tube (6) is fixedly arranged on the top of the inner mold tube (6) The inner film tube (6) is fixedly arranged on the top of the control seat (3), and the interior of the inner film tube (6) is a single circulation channel; the side transmission frame (7), the side transmission frame (7) is fixedly arranged on both sides of the control seat (3); the piston cylinder (8), the piston cylinder (8) is fixedly arranged on the top rear side of the control seat (3); the feed seat (9), the feed seat (9) is slidably arranged on the outside of the guide rod column (301); the carrier (10), the carrier (10) is fixedly arranged on the outside of the outer mold tube (502), and the carrier (10 ) is fixedly provided on the top of the assembly frame (1001); a bearing frame (12), the bearing frame (12) is fixedly provided on the top of the assembly frame (1001), the interior of the bearing frame (12) is a hollow structure, and the outer side of the bearing frame (12) is provided with an air hole (1201); a swivel seat (13), the swivel seat (13) is rotatably provided on the outside of the bearing frame (12) in cooperation with two sets of airtight bearings and wraps the air hole (1201); and a motor seat (14), the motor seat (14) is fixedly provided on the top of the carrier (10).

2. An injection molding device for PVC pipe processing as claimed in claim 1, characterized in that: The control seat (3) also includes: Roller shafts (303), four groups of roller shafts (303) are rotatably arranged on the top of the control seat (3), and a disc-shaped roller (304) is fixedly arranged on the outer side of the top of the roller shaft (303); the inner wall of the main gear plate (5) is provided with a V-shaped groove (501), and the V-shaped groove (501) is fitted on the outside of the disc-shaped roller (304).

3. An injection molding device for PVC pipe processing as claimed in claim 1, characterized in that: The inner membrane tube (6) is connected to two groups of pipes, the front pipe is connected to the upper rear side of the water tank (101), the rear pipe is connected to the bottom of the piston cylinder (8), and another group of pipes is provided at the bottom of the piston cylinder (8) and connected to the lower rear side of the water tank (101). One-way valves are connected in the middle of the three groups of pipes.

4. An injection molding device for PVC pipe processing as claimed in claim 1, characterized in that: The side transmission frame (7) comprises: A side connecting shaft (701), the side connecting shaft (701) being rotatably arranged on the upper outer side of the side transmission frame (7); A driven shaft (702), the top of the side transmission frame (7) is rotatably provided with a driven shaft (702), and the driven shaft (702) is connected to the side connecting shaft (701) by a bevel gear transmission; The transmission wheels (703) are rotatably arranged on adjacent surfaces of the two sets of side transmission frames (7), and eccentric rods are integrally arranged on adjacent surfaces of the two sets of transmission wheels (703); the transmission wheels (703) are connected to the side connection shaft (701) by means of a bevel gear transmission.

5. An injection molding device for PVC pipe processing as claimed in claim 1, characterized in that: The feed seat (9) comprises: Guide grooves (901), guide grooves (901) are provided on both sides of the feed seat (9), and the eccentric rod of the transmission wheel (703) slides in the guide grooves (901); An outer mold sleeve (902), the middle of the feed seat (9) is integrally provided with the outer mold sleeve (902), and an inner mold sleeve (903) is fixedly provided inside the outer mold sleeve (902); A connecting pipe (904) is connected to the lower outer side of the outer mold sleeve (902), a check valve A (905) is connected to the middle of the connecting pipe (904), a telescopic pipe (906) is connected to the bottom of the front side of the connecting pipe (904), a check valve B (907) is connected to the bottom of the telescopic pipe (906), and the check valve B (907) is connected to the top of the strip channel (203).

6. An injection molding device for PVC pipe processing as claimed in claim 1, characterized in that: The carrier (10) further comprises: Auxiliary rubber rollers (1002), four groups of auxiliary rubber rollers (1002) are rotatably arranged on the top of the assembly frame (1001), the four groups of auxiliary rubber rollers (1002) are arranged to bevel gear transmission connection, and a counting wheel (1003) is fixedly arranged on the outer end of the rotating shaft of one group of auxiliary rubber rollers (1002), and the counting wheel (1003) is an eccentric wheel; A counting sensor (1004) is fixedly arranged on the top of the assembly frame (1001), and the counting sensor (1004) can intermittently fit the counting wheel (1003).

7. An injection molding device for PVC pipe processing as claimed in claim 1, characterized in that: A monitoring fuse (11) is fixedly arranged outside the outer mold tube (502); the monitoring fuse (11) is a ring-shaped structure, and the fracture of the monitoring fuse (11) is arranged as an inclined surface.

8. An injection molding device for PVC pipe processing as claimed in claim 1, characterized in that: The transposition (13) comprises: A side toothed disc (1301), the interior of the rotating seat (13) is an intermediate structure, and the outer side of the rotating seat (13) is integrally provided with a side toothed disc (1301); Gas telescopic rods (1302), four groups of gas telescopic rods (1302) are connected to the top of the rotating seat (13), and a cutter (1303) is fixedly provided at the telescopic end of the gas telescopic rod (1302).

9. An injection molding device for PVC pipe processing as claimed in claim 1, characterized in that: The motor base (14) comprises: A guide air cylinder (1401) is fixedly arranged above the motor seat (14), a lead screw (1402) is rotatably arranged inside the guide air cylinder (1401), and an octagonal piston (1403) is slidably arranged inside the guide air cylinder (1401); the lead screw (1402) and the octagonal piston (1403) are threadedly connected; an air pipe is arranged at the bottom of the guide air cylinder (1401) and is connected to the bearing frame (12); a cutting motor (15) is fixedly arranged at the top of the motor seat (14), a bevel gear is arranged on the rotating shaft of the cutting motor (15) and meshes with the side gear disc (1301), and a bevel gear is arranged on the rotating shaft of the cutting motor (15) and meshes with the top of the lead screw (1402).

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