CN117124563B

CN117124563B - PE gas pipe extrusion production equipment

Info

Publication number: CN117124563B
Application number: CN202311043503.2A
Authority: CN
Inventors: 陈建辉; 刘鹏晓; 张振鹏; 陈奎; 吴远辉
Original assignee: Changchun Liansu Industrial Co ltd
Current assignee: Changchun Liansu Industrial Co ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2024-04-19
Anticipated expiration: 2043-08-18
Also published as: CN117124563A

Abstract

The invention relates to the field of PE pipe production equipment, in particular to PE gas pipe extrusion production equipment, which comprises a shell, a crushing device and a screening device; the shell comprises a first cylinder and a second cylinder; the first cylinder is connected with the second cylinder and is positioned above the second cylinder; the bottom of the second cylinder body is provided with a connecting pipe and an extrusion assembly; two ends of the connecting pipe are respectively communicated with the second cylinder body and the extrusion assembly; the crushing device is arranged in the first cylinder; the screening device comprises a screen plate, an elastic piece and a pushing component; the sieve plate is in sliding fit with the inner wall of the second cylinder; the pushing assembly is arranged on the shell. According to the invention, the functions of crushing raw materials and controlling the raw materials with qualified sizes to enter the extrusion assembly are realized through the shell, the crushing device and the screening device, and the throwing of the screen plate is controlled periodically through the elastic piece and the pushing assembly, so that the effect of throwing the large-size raw materials retained on the screen plate to the crushing device is achieved, and the problem that the screen holes are blocked due to the retention of large-particle raw materials on the screen plate is solved.

Description

PE gas pipe extrusion production equipment

Technical Field

The invention relates to the field of PE pipe production equipment, in particular to PE gas pipe extrusion production equipment.

Background

PE pipe is also called polyethylene pipe, and it is widely used in gas transmission. Extrusion equipment is generally used to produce PE pipes, but when PE pipe production is performed, incompletely pulverized plastic raw materials are mixed, and when raw materials are heated, large-particle raw materials are melted for a long time, which affects extrusion efficiency.

For this reason, chinese patent CN219213743U discloses an extrusion device for production of high-efficient PE tubular product, it pours the raw materials into crushing incasement through the feeder hopper, then start the second motor, make the axis of rotation drive a plurality of cutting knives rotate and smash the raw materials, the raw materials after smashing falls into the reel after then, start vibrating motor, make vibrating motor drive reel and sieve vibrations screen the raw materials, the raw materials of screening then falls into the extruder through the discharging pipe, be convenient for the extruder carries out quick heating with the raw materials and melts, thereby reduce the time of heating when the raw materials extrudes, effectively improve the extrusion efficiency of PE pipe.

However, when the existing extrusion device is used for feeding, large-particle plastic raw materials still fall on the sieve plate, and the large-particle raw materials cannot be discharged only through the cooperation of the slag discharging pipe and the vibrating motor, so that the large-particle raw materials are retained on the sieve plate, and plastic particles with qualified sizes are influenced to pass through the sieve plate.

Disclosure of Invention

Aiming at the problems, the PE gas pipe extrusion production equipment solves the problem that large-particle raw materials are detained on a sieve plate to block sieve holes through a shell, a crushing device and a screening device.

In order to solve the problems in the prior art, the invention provides PE gas pipe extrusion production equipment, which comprises a shell, a crushing device and a screening device; the shell comprises a first cylinder and a second cylinder; the first cylinder is connected with the second cylinder and is positioned above the second cylinder; the bottom of the second cylinder body is provided with a connecting pipe and an extrusion assembly; two ends of the connecting pipe are respectively communicated with the second cylinder body and the extrusion assembly; the crushing device is arranged in the first cylinder and is used for crushing the raw materials; the screening device comprises a screen plate, an elastic piece and a pushing component; the sieve plate is arranged in the second cylinder body and is in sliding fit with the inner wall of the second cylinder body; two ends of the elastic piece are respectively connected with the shell and the sieve plate; the pushing component is arranged on the shell and is used for pushing the sieve plate to move against the elastic force of the elastic piece.

Preferably, the pushing assembly comprises a fixed frame, a first bracket, a first pushing plate and a second pushing plate; the fixing frame is arranged on the shell and is connected with the outer wall of the shell; the first bracket is slidably arranged on the fixed frame; the first push plate and the second push plate are both slidably arranged on the first bracket; the shell is also provided with an auxiliary control device and a switching control device; the auxiliary control device comprises a linear driving assembly which is arranged on the shell and is used for driving the push plate to move; the switching control device is arranged on the shell and used for controlling the first bracket to move along the fixing frame.

Preferably, the switching control device comprises a switching assembly and a rotary driving assembly; the switching assembly comprises a mounting plate, a guide piece and a control ring; the mounting plate is mounted on the first bracket; the guide piece is arranged on the mounting plate and provided with a long groove; the control ring is rotatably arranged on the shell, and is provided with a fixed rod which is in sliding fit with the long groove of the guide piece; the rotary driving assembly is arranged on the shell, and the driving end of the rotary driving assembly is in transmission connection with the control ring.

Preferably, the rotary drive assembly comprises a mount, a first rotary drive, a first rotary gear and a toothed ring; the mounting seat is arranged on the shell; the first rotary driver is arranged on the mounting seat; the first rotary gear is sleeved on the driving end of the first rotary driver; the gear ring is arranged on the control ring, the axis of the gear ring is collinear with the axis of the control ring, and the first rotary gear is in transmission connection with the gear ring.

Preferably, the linear drive assembly comprises a second rotary drive, a screw and a push block; the second rotary driver is arranged on the first bracket; the two screws are arranged and are rotatably arranged on the first bracket, and one screw is in transmission connection with the driving end of the second rotary driver; the two pushing blocks are respectively connected with the first pushing plate and the second pushing plate, and are respectively in threaded connection with the two screw rods; the transmission component is arranged on the first bracket, and two ends of the transmission component are respectively connected with the two screw rods in a transmission way.

Preferably, the transmission assembly comprises a rotating shaft, a second rotating gear, a sleeve and a synchronous belt; the two rotating shafts are arranged and rotatably mounted on the first bracket; the two second rotary gears are respectively sleeved on the two rotary shafts and are in transmission connection; the sleeve is provided with four sleeves which are respectively sleeved on the two rotating shafts and the two screws; the synchronous belt is provided with two, and two ends of the synchronous belt are respectively sleeved on the two sleeves on the rotating shaft and the screw rod.

Preferably, the sieve plate is provided with a fixing lug, the second cylinder body is provided with a sliding groove, the fixing lug is in sliding fit with the sliding groove, and two ends of the elastic piece are respectively connected with the fixing lug and the shell.

Preferably, a leakage-proof assembly is further arranged in the second cylinder, and the leakage-proof assembly comprises a leakage-proof plate and a connecting ring; the anti-leakage plate is slidably arranged in the chute, the fixing lug is arranged on the anti-leakage plate, the anti-leakage plate is fixedly connected with the screen plate, and the length of the anti-leakage plate is at least twice the length of the chute; the connecting ring is connected with the leakage-proof plate.

Preferably, the bottoms of the first pushing plate and the second pushing plate are respectively provided with a pressure sensor.

Preferably, the comminution device comprises a mounting frame, a third rotary drive and a cutter; the mounting frame is arranged in the first cylinder body and is connected with the inner wall of the first cylinder body; the third rotary driver is arranged on the mounting frame; the cutting knife is rotatably arranged on the mounting frame, and the driving end of the third rotary driver is in transmission connection with the cutting knife.

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

1. According to the invention, the functions of crushing raw materials and controlling the raw materials with qualified sizes to enter the extrusion assembly are realized through the shell, the crushing device and the screening device, and the throwing of the sieve plate is controlled through the elastic piece and the pushing assembly periodically, so that the effect of throwing the large-size raw materials retained on the sieve plate to the crushing device is achieved, the problem that the sieve holes are blocked due to the retention of large-particle raw materials on the sieve plate is solved, and the raw material melting efficiency is greatly improved.

2. The invention realizes the function of pushing the sieve plate to move through the fixing frame, the first bracket, the push plates, the auxiliary control device and the switching control device, and achieves the effect of continuously driving the sieve plate to move through the alternate movement of the two push plates.

3. The invention realizes the function of controlling the movement of the first bracket through the switching component and the rotary driving component, and achieves the effect of synchronously adjusting the movement of the first brackets of the plurality of groups of pushing components.

Drawings

Fig. 1 is a schematic perspective view of a PE gas pipe extrusion production apparatus.

Fig. 2 is a schematic perspective view of a PE gas pipe extrusion production apparatus with the screen deck uppermost.

Fig. 3 is a schematic cross-sectional view of a PE gas pipe extrusion production apparatus with the screen deck uppermost.

Fig. 4 is a schematic perspective view of a screening device and a switching control device in a PE gas pipe extrusion production apparatus.

Fig. 5 is a schematic perspective view of a screening device in a PE gas pipe extrusion production facility.

Fig. 6 is a schematic perspective view of a screening device, an auxiliary control device and a switching control device of a PE gas pipe extrusion production apparatus.

Fig. 7 is an enlarged partial schematic view at a in fig. 6.

Fig. 8 is a schematic perspective view of an auxiliary control device in a PE gas pipe extrusion production apparatus.

Fig. 9 is a schematic perspective view of a second cylinder and screening device in a PE gas pipe extrusion production apparatus.

Fig. 10 is a schematic perspective view of a pulverizing device in a PE gas pipe extrusion production apparatus.

The reference numerals in the figures are: 1-a housing; 11-a first cylinder; 111-a feed inlet; 12-a second cylinder; 121-connecting a pipe; 122-sliding grooves; 13-an extrusion assembly; 2-a crushing device; 21-a mounting rack; 22-a third rotary drive; 23-cutting knife; 3-screening device; 31-sieve plate; 311-fixing lugs; 32-an elastic member; 33-pushing assembly; 331-a fixing frame; 332-a first bracket; 333-first push plate; 334-a second push plate; 335-a pressure sensor; 34-a leak-proof assembly; 341-a leakage-proof plate; 342-a connecting ring; 4-an auxiliary control device; 41-a linear drive assembly; 411-a second rotary drive; 412-a screw; 413-pushing blocks; 42-a transmission assembly; 421-rotation axis; 422-a second rotary gear; 423-sleeve; 424-synchronous belt; 5-a switching control device; 51-a switching component; 511-mounting plate; 512-guide; 5121-an elongated slot; 513-a control loop; 5131-fixing rod; 52-a rotary drive assembly; 521-mounting seats; 522-a first rotary drive; 523-a first rotation gear; 524-toothed ring.

Detailed Description

The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.

Referring to fig. 1-3: a PE gas pipe extrusion production device comprises a shell 1, a crushing device 2 and a screening device 3; the housing 1 includes a first cylinder 11 and a second cylinder 12; the first cylinder 11 is connected with the second cylinder 12 and is positioned above the second cylinder 12; the bottom of the second cylinder 12 is provided with a connecting pipe 121 and an extrusion assembly 13; two ends of the connecting pipe 121 are respectively communicated with the second cylinder 12 and the extrusion assembly 13; the crushing device 2 is arranged in the first cylinder 11 and is used for crushing raw materials; the screening device 3 comprises a screen deck 31, an elastic member 32 and a pushing assembly 33; the sieve plate 31 is arranged inside the second cylinder 12, and the sieve plate 31 is in sliding fit with the inner wall of the second cylinder 12; two ends of the elastic piece 32 are respectively connected with the shell 1 and the sieve plate 31; a pushing assembly 33 is provided on the housing 1 and is adapted to push the screen plate 31 against the elastic force of the elastic member 32.

The invention realizes the functions of crushing raw materials and controlling the raw materials with qualified size to enter the extrusion assembly 13 through the shell 1, the crushing device 2 and the screening device 3, and controls the throwing of the sieve plate 31 periodically through the elastic piece 32 and the pushing assembly 33, thereby achieving the effect of throwing the raw materials with large size remained on the sieve plate 31 to the crushing device 2, solving the problem that the sieve holes are blocked by the large-particle raw materials remained on the sieve plate 31, and greatly improving the raw material melting efficiency. The elastic member 32 is preferably a nitrogen spring, the nitrogen spring is mounted on the shell 1, a piston rod of the nitrogen spring is in transmission connection with the sieve plate 31, and a feed opening 111 is formed in the top of the first cylinder 11. The operator drops the raw materials into casing 1 from feed inlet 111, and the raw materials drops to reducing mechanism 2 department from feed inlet 111, and it is broken through reducing mechanism 2, and the raw materials after the breakage drops on sieve 31, and the raw materials that the size is qualified gets into connecting pipe 121 through sieve 31 to get into extrusion assembly 13 from connecting pipe 121, extrude after melting, carry out PE gas pipe's production. The unqualified raw materials of size are detained on the sieve plate 31, the operator overcomes the elasticity of the elastic piece 32 through the pushing component 33 to push the sieve plate 31 to move downwards, after the sieve plate 31 moves to the lower limit position, the sieve plate 31 is separated from the pushing component 33, the sieve plate 31 moves upwards rapidly under the action of the elasticity of the elastic piece 32, meanwhile, the raw materials detained on the sieve plate 31 are driven to move synchronously, after the sieve plate 31 moves to the upper limit position, the raw materials continue to move upwards to the position of the smashing device 2 under the action of inertia to be smashed again, and then the large-particle raw materials are prevented from being detained on the sieve plate 31, meanwhile, the materials on the sieve plate 31 are vibrated through the movement of the sieve plate 31, so that the screening efficiency is improved, the raw materials are prevented from blocking the sieve holes, and high-efficiency screening is continuously maintained.

Referring to fig. 2, 4 and 5: the pushing assembly 33 includes a fixed frame 331, a first bracket 332, a first pushing plate 333, and a second pushing plate 334; the fixing frame 331 is mounted on the housing 1 and is connected with the outer wall of the housing 1; the first bracket 332 is slidably mounted on the fixing frame 331; the first push plate 333 and the second push plate 334 are both slidably mounted on the first bracket 332; the shell 1 is also provided with an auxiliary control device 4 and a switching control device 5; the auxiliary control device 4 comprises a linear driving assembly 41, wherein the linear driving assembly 41 is arranged on the shell 1 and is used for driving the push plate to move; the switching control device 5 is provided on the housing 1 and is used for controlling the first bracket 332 to move along the fixing frame 331.

The invention realizes the function of pushing the screen plate 31 to move through the fixing frame 331, the first bracket 332, the push plates, the auxiliary control device 4 and the switching control device 5, and achieves the effect of continuously driving the screen plate 31 to move through the alternate movement of the two push plates. The linear driving assembly 41 and the switching control device 5 are electrically connected with the controller; the operator drops the raw materials into casing 1 from feed inlet 111, and the raw materials drops to reducing mechanism 2 department from feed inlet 111, and it is broken through reducing mechanism 2, and the raw materials after the breakage drops on sieve 31, and the raw materials that the size is qualified gets into connecting pipe 121 through sieve 31 to get into extrusion assembly 13 from connecting pipe 121, extrude after melting, carry out PE gas pipe's production. The raw materials with unqualified size are retained on the screen plate 31, an operator sends a signal to the linear driving assembly 41 and the switching control device 5 through the controller, the switching control device 5 controls the first support 332 to move after receiving the signal, the first support 332 drives the first push plate 333 and the second push plate 334 which are arranged on the first support 332 to synchronously move, the first push plate 333 is contacted with the screen plate 31, then the linear driving assembly 41 drives the first push plate 333 to move downwards after receiving the signal, the linear driving assembly 41 drives the second push plate 334 to move upwards at the same speed, the first push plate 333 overcomes the elastic force of the elastic piece 32 to push the screen plate 31 to move downwards, after the first push plate moves to the lower limit position, the second push plate 334 moves to the upper limit position, then the operator controls the first support 332 to move through the switching control device 5, the first support 332 drives the first push plate 333 and the second push plate 334 to synchronously move, the first push plate 333 and the second push plate 334 are both misplaced in the vertical direction, the first push plate 333 and the second push plate 334 are in a free state, the elastic force of the elastic piece 32 moves rapidly upwards, and simultaneously drives the retained raw materials to synchronously move on the screen plate 31, after the second push plate 334 moves to the upper limit position, the screen plate 31 moves to the upper limit position, the inertia of the screen plate 31 is continuously moved to the screen plate 31, and the raw materials are crushed, and the raw materials are retained on the screen particles are further kept at the high speed, and the high efficiency is kept at the screen grinding device, and the high speed, and the raw materials are further crushed, and the raw materials are further and retained on the raw materials are further and are continuously and retained on the screen 2.

Referring to fig. 1,2, 6 and 7: the switching control device 5 includes a switching assembly 51 and a rotation driving assembly 52; the switching assembly 51 includes a mounting plate 511, a guide 512, and a control ring 513; the mounting plate 511 is mounted on the first bracket 332; the guide element 512 is mounted on the mounting plate 511, and the guide element 512 is provided with a long groove 5121; the control ring 513 is rotatably installed on the housing 1, and the control ring 513 is provided with a fixing rod 5131, and the fixing rod 5131 is in sliding fit with the long groove 5121 of the guide member 512; a rotary drive assembly 52 is arranged on the housing 1 and its drive end is in driving connection with the control ring 513.

The invention realizes the function of controlling the movement of the first bracket 332 through the switching component 51 and the rotary driving component 52, and achieves the effect of synchronously adjusting the movement of the first bracket 332 of the plurality of groups of pushing components 33. The elastic member 32 and the pushing assembly 33 are provided with a plurality of groups, and the plurality of groups of pushing assemblies 33 and the elastic member 32 are arranged symmetrically along the axis center of the housing 1. The rotary drive assembly 52 is electrically connected to the controller; the operator drops the raw materials into casing 1 from feed inlet 111, and the raw materials drops to reducing mechanism 2 department from feed inlet 111, and it is broken through reducing mechanism 2, and the raw materials after the breakage drops on sieve 31, and the raw materials that the size is qualified gets into connecting pipe 121 through sieve 31 to get into extrusion assembly 13 from connecting pipe 121, extrude after melting, carry out PE gas pipe's production. While the unqualified raw materials are retained on the screen plate 31, an operator sends a signal to the linear driving assembly 41 and the rotary driving assembly 52 through the controller, the rotary driving assembly 52 receives the signal and drives the control ring 513 to rotate, the control ring 513 drives the fixed rod 5131 to synchronously rotate, the guide element 512 is further pushed by the cooperation of the fixed rod 5131 and the long groove 5121, the guide element 512 drives the mounting plate 511 and the first support 332 to move, the first support 332 drives the first push plate 333 and the second push plate 334 which are mounted on the guide element to synchronously move, the first push plate 333 is contacted with the screen plate 31, then the linear driving assembly 41 receives the signal and drives the first push plate 333 to move downwards, meanwhile, the linear driving assembly 41 drives the second push plate 334 to move upwards at the same speed, the first pushing plate 333 pushes the screen plate 31 to move downwards against the elastic force of the elastic element 32, after the screen plate 31 moves to the lower limit position, the second pushing plate 334 moves to the upper limit position, then an operator controls the first support 332 to move through the switching control device 5, the first support 332 drives the first pushing plate 333 and the second pushing plate 334 to synchronously move, so that the first pushing plate 333 and the second pushing plate 334 are misplaced with the screen plate 31 in the vertical direction, the screen plate 31 is in a free state, the screen plate 31 moves upwards rapidly under the elastic force of the elastic element 32, simultaneously drives raw materials retained on the screen plate 31 to synchronously move, after the screen plate 31 moves to the upper limit position, the raw materials continue to move upwards to the crushing device 2 under the inertia effect, and are crushed again, so that the large-particle raw materials are prevented from being retained on the screen plate 31, and the screening efficiency is maintained.

Referring to fig. 1, 2, 6 and 7: the rotary drive assembly 52 includes a mount 521, a first rotary drive 522, a first rotary gear 523, and a toothed ring 524; the mounting seat 521 is mounted on the housing 1; the first rotary driver 522 is mounted on the mounting base 521; the first rotary gear 523 is sleeved on the driving end of the first rotary driver 522; a toothed ring 524 is mounted on the control ring 513 with its axis collinear with the axis of the control ring 513, the first rotary gear 523 being in driving connection with the toothed ring 524.

The present invention accomplishes the function of driving the control ring 513 to rotate by means of a mounting bracket 521, a first rotary driver 522, a first rotary gear 523 and a toothed ring 524. The first rotary drive 522 is preferably a servo motor, which is electrically connected to the controller; the operator drops the raw materials into casing 1 from feed inlet 111, and the raw materials drops to reducing mechanism 2 department from feed inlet 111, and it is broken through reducing mechanism 2, and the raw materials after the breakage drops on sieve 31, and the raw materials that the size is qualified gets into connecting pipe 121 through sieve 31 to get into extrusion assembly 13 from connecting pipe 121, extrude after melting, carry out PE gas pipe's production. While the unqualified raw materials are retained on the screen plate 31, an operator sends a signal to the linear driving assembly 41 and the first rotary driver 522 through the controller, the first rotary driver 522 receives the signal and then drives the first rotary gear 523 to rotate, the first rotary gear 523 drives the toothed ring 524 in transmission connection with the first rotary gear 523 to rotate, the toothed ring 524 drives the control ring 513 to rotate, the control ring 513 drives the fixed rod 5131 to synchronously rotate, the guide element 512 is pushed by the cooperation of the fixed rod 5131 and the long groove 5121, the guide element 512 drives the mounting plate 511 and the first bracket 332 to move, the first bracket 332 drives the first push plate 333 and the second push plate 334 which are mounted on the first bracket to synchronously move, so that the first push plate 333 is contacted with the screen plate 31, then the linear driving assembly 41 receives the signal and then drives the first push plate 333 to move downwards, and the linear driving assembly 41 drives the second push plate 334 to move upwards at the same speed, the first pushing plate 333 pushes the screen plate 31 to move downwards against the elastic force of the elastic element 32, after the screen plate 31 moves to the lower limit position, the second pushing plate 334 moves to the upper limit position, then an operator controls the first support 332 to move through the switching control device 5, the first support 332 drives the first pushing plate 333 and the second pushing plate 334 to synchronously move, so that the first pushing plate 333 and the second pushing plate 334 are misplaced with the screen plate 31 in the vertical direction, the screen plate 31 is in a free state, the screen plate 31 moves upwards rapidly under the elastic force of the elastic element 32, simultaneously drives raw materials retained on the screen plate 31 to synchronously move, after the screen plate 31 moves to the upper limit position, the raw materials continue to move upwards to the crushing device 2 under the inertia effect, and are crushed again, so that the large-particle raw materials are prevented from being retained on the screen plate 31, and the screening efficiency is maintained.

Referring to fig. 1, 6 and 8: the linear drive assembly 41 includes a second rotary drive 411, a screw 412 and a push block 413; the second rotary drive 411 is mounted on the first bracket 332; the two screws 412 are rotatably mounted on the first bracket 332, and one screw 412 is in transmission connection with the driving end of the second rotary driver 411; the two pushing blocks 413 are arranged, the two pushing blocks 413 are respectively connected with the first pushing plate 333 and the second pushing plate 334, and the two pushing blocks 413 are respectively in threaded connection with the two screws 412; the transmission assembly 42 is mounted on the first bracket 332 and has two ends respectively in transmission connection with two screws 412.

The present invention accomplishes the function of controlling the movement of the first push plate 333 and the second push plate 334 by means of the second rotary driver 411, the screw 412, the push block 413 and the transmission assembly 42. The second rotary driver 411 is preferably a servo motor, and the servo motor is electrically connected with the controller; after the extrusion production equipment is started, an operator sends a signal to the second rotary driver 411 and the first rotary driver 522 through the controller, the first rotary driver 522 receives the signal and then drives the first rotary gear 523 to rotate, the first rotary gear 523 drives the toothed ring 524 in transmission connection with the first rotary driver 523 to rotate, the toothed ring 524 drives the control ring 513 to rotate, the control ring 513 drives the fixed rod 5131 to synchronously rotate, further, the guide element 512 is pushed through the cooperation of the fixed rod 5131 and the long groove 5121, the guide element 512 drives the mounting plate 511 and the first bracket 332 to move, the first bracket 332 drives the first push plate 333 and the second push plate 334 which are mounted on the guide element to synchronously move, so that the first push plate 333 is in contact with the sieve plate 31, then the second rotary driver 411 receives the signal and then drives the screw 412 in transmission connection with the driving end of the second push plate, and simultaneously the screw 412 drives the other screw 412 to synchronously reversely rotate through the transmission assembly 42, the two screws 412 respectively drive the first pushing plate 333 and the second pushing plate 334 which are in threaded connection with the first pushing plate 333 to move, so that the first pushing plate 333 moves downwards, the second pushing plate 334 moves upwards at the same speed, the first pushing plate 333 pushes the sieve plate 31 to move downwards against the elastic force of the elastic piece 32, after the first pushing plate 333 moves to the lower limit position, the second pushing plate 334 moves to the upper limit position, then an operator controls the first bracket 332 to move through the switching control device 5, the first bracket 332 drives the first pushing plate 333 and the second pushing plate 334 to synchronously move, so that the first pushing plate 333 and the second pushing plate 334 are both misplaced with the sieve plate 31 in the vertical direction, the sieve plate 31 is in a free state, the raw materials retained on the sieve plate 31 are driven to synchronously move under the elastic force of the elastic piece 32, the raw materials continue to upwards move to the smashing device 2 under the inertia effect and are smashed again, so that the raw materials with large particles are prevented from being detained on the sieve plate 31, and the screening efficiency is maintained.

Referring to fig. 1, 6 and 8: the transmission assembly 42 includes a rotation shaft 421, a second rotation gear 422, a sleeve 423, and a timing belt 424; the rotation shaft 421 is provided in two and is rotatably installed on the first bracket 332; the two second rotating gears 422 are respectively sleeved on the two rotating shafts 421, and the two second rotating gears 422 are in transmission connection; the sleeve 423 is provided with four sleeves which are respectively sleeved on the two rotating shafts 421 and the two screws 412; the synchronous belt 424 is provided with two, and two ends of the synchronous belt 424 are respectively sleeved on the two sleeves 423 on the rotating shaft 421 and the screw 412.

The invention realizes the function of connecting the first pushing plate 333 and the second pushing plate 334 in a transmission way through the rotating shaft 421, the second rotating gear 422, the sleeve 423 and the synchronous belt 424, and achieves the effect of driving the second pushing plate 334 to descend when the first pushing plate 333 ascends. After the extrusion production equipment is started, an operator sends a signal to the second rotary driver 411 and the first rotary driver 522 through the controller, the first rotary driver 522 receives the signal and then drives the first rotary gear 523 to rotate, the first rotary gear 523 drives the toothed ring 524 in transmission connection with the first rotary driver 523 to rotate, the toothed ring 524 drives the control ring 513 to rotate, the control ring 513 drives the fixed rod 5131 to synchronously rotate, further, the guide element 512 is pushed through the cooperation of the fixed rod 5131 and the long groove 5121, the guide element 512 drives the mounting plate 511 and the first bracket 332 to move, the first bracket 332 drives the first push plate 333 and the second push plate 334 which are mounted on the guide element to synchronously move, so that the first push plate 333 is in contact with the sieve plate 31, then the second rotary driver 411 receives the signal and then drives the screw 412 in transmission connection with the driving end of the first push plate, and simultaneously the screw 412 drives the rotary shaft 421 in transmission connection with the first push plate through the sleeve 423 and the synchronous belt 424 to rotate, the rotating shaft 421 drives the second rotating gear 422 sleeved on the rotating shaft 421 to rotate, the second rotating gear 422 drives the other second rotating gear 422 connected with the second rotating gear 422 in a transmission way to reversely rotate at the same speed, and then drives the second screw 412 to rotate through the transmission of the sleeve 423 and the synchronous belt 424, the two screws 412 respectively drive the first pushing plate 333 and the second pushing plate 334 which are in threaded connection with the second rotating gear, so that the first pushing plate 333 moves downwards, the second pushing plate 334 moves upwards at the same speed, the first pushing plate 333 overcomes the elastic force of the elastic piece 32 to push the screen plate 31 to move downwards, after the second pushing plate 333 moves to the lower limit position, the second pushing plate 334 moves to the upper limit position, then an operator controls the first bracket 332 to move through the switching control device 5, the first bracket 332 drives the first pushing plate 333 and the second pushing plate 334 to synchronously move, make first push pedal 333 and second push pedal 334 all misplace with sieve 31 in the vertical direction, and sieve 31 is in the free state, and upward movement is rapidly carried out under the elasticity effect of elastic component 32, and it drives the synchronous motion of the raw materials that is detained above that simultaneously, and after sieve 31 moved to upper extreme position, the raw materials continues upward movement to reducing mechanism 2 department under inertial action, smashes once more, and then avoids the raw materials of macroparticle to detain on sieve 31, keeps screening efficiency.

Referring to fig. 9: the screen plate 31 is provided with a fixing lug 311, the second cylinder 12 is provided with a sliding groove 122, the fixing lug 311 is in sliding fit with the sliding groove 122, and two ends of the elastic piece 32 are respectively connected with the fixing lug 311 and the shell 1.

The invention realizes the function of guiding the movement of the sieve plate 31 through the fixing lugs 311 and the sliding grooves 122, and achieves the effect of avoiding the blocking of the sieve plate 31 in the second cylinder 12. Four sliding rails are arranged on the second cylinder 12, four fixing lugs 311 are arranged on the sieve plate 31, the four fixing lugs 311 are respectively in sliding fit with the four sliding rails, and when the sieve plate 31 is pushed to move, the elastic piece 32 pushes the fixing lugs 311 to move, and then the sieve plate 31 is driven to move through the fixing lugs 311. As the pushing assembly 33 pushes the screen plate 31 to move, the fixing lugs 311 are also pushed to move by the first pushing plate 333 and the second pushing plate 334. Through the cooperation of fixed ear 311 and slide rail, make the sieve 31 can stably slide, avoid the slope of sieve 31 at the slip in-process to lead to its card to die in second barrel 12.

Referring to fig. 2,6 and 9: a leakage-proof assembly 34 is further arranged in the second barrel 12, and the leakage-proof assembly 34 comprises a leakage-proof plate 341 and a connecting ring 342; the anti-leakage plate 341 is slidably installed in the sliding groove 122, the fixing lug 311 is installed on the anti-leakage plate 341, the anti-leakage plate 341 is fixedly connected with the screen plate 31, and the length of the anti-leakage plate 341 is at least twice the length of the sliding groove 122; the connection ring 342 is connected to the leakage preventing plate 341.

The present invention realizes the function of avoiding the leakage of the raw material from the chute 122 by the leakage preventing plate 341 and the connection ring 342. Because spout 122 passes the section of thick bamboo wall of second barrel 12 from the inside of second barrel 12, in order to avoid the raw materials to leak from spout 122, set up leak protection board 341, can drive leak protection board 341 and sieve 31 when fixed ear 311 removes and remove, even fixed ear 311 removes to the lower extreme, leak protection board 341 also can not misplace with spout 122, and then avoid the raw materials to leak, can stable control sieve 31 removes simultaneously.

Referring to fig. 9: the bottoms of the first push plate 333 and the second push plate 334 are each provided with a pressure sensor 335.

The present invention realizes the function of automatically controlling the movement of the first pushing plate 333 and the second pushing plate 334 by the pressure sensor 335. The pressure sensor 335 is electrically connected to the controller; after the equipment is started, the controller sends a signal to the rotary driving assembly 52, the rotary driving assembly 52 drives the control ring 513 to rotate, the control ring 513 drives the fixed rod 5131 to move, the fixed rod 5131 drives the first support 332 to move, and then the first push plate 333 is in contact with the fixed lug 311, after the pressure sensor 335 senses the pressure, the controller sends a signal to the linear driving assembly 41, the linear driving assembly 41 drives the first push plate 333 to move downwards, when the fixed lug 311 moves to the lower limit, the pressure sensor 335 senses the pressure increase and feeds back the signal to the controller again, the controller sends a signal to the rotary driving assembly 52 after receiving the signal, the first support 332 is controlled to move reversely again, the first push plate 333 is separated from the fixed lug 311, the fixed lug 311 moves upwards under the driving of the elastic piece 32 until the first push plate 333 is in contact with the pressure sensor 335 at the bottom of the second push plate 334, the pressure sensor 335 feeds back the signal to the controller, the controller receives the signal and then sends the signal to the linear driving assembly 41 again, the second push plate 334 is controlled to move downwards, the operation is repeated, and the periodical control is performed to control the screen plate 31 to move.

Referring to fig. 1 and 10: the comminution device 2 comprises a mounting frame 21, a third rotary drive 22 and a cutter 23; the mounting rack 21 is mounted in the first cylinder 11 and is connected with the inner wall of the first cylinder 11; the third rotary drive 22 is mounted on the mounting frame 21; the cutter 23 is rotatably mounted on the mounting frame 21, and the driving end of the third rotary driver 22 is in transmission connection with the cutter 23.

The invention realizes the function of crushing raw materials through the mounting frame 21, the third rotary driver 22 and the cutter 23. The third rotary drive 22 is preferably a servomotor, which is electrically connected to the controller; after the operator starts the device, the controller sends a signal to the third rotary driver 22, the third rotary driver 22 receives the signal and drives the cutter 23 to rotate, and the raw materials are crushed after contacting with the cutter 23 rotating at a high speed, so that the cutting of the raw materials is completed.

The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.

Claims

1. The PE gas pipe extrusion production equipment comprises a shell (1), a crushing device (2) and a screening device (3);

The shell (1) comprises a first cylinder (11) and a second cylinder (12);

The first cylinder (11) is connected with the second cylinder (12) and is positioned above the second cylinder (12);

the bottom of the second cylinder body (12) is provided with a connecting pipe (121) and an extrusion assembly (13);

two ends of the connecting pipe (121) are respectively communicated with the second cylinder (12) and the extrusion assembly (13);

the crushing device (2) is arranged in the first cylinder (11) and is used for crushing raw materials;

the screening device (3) is characterized by comprising a screen plate (31), an elastic piece (32) and a pushing component (33);

The sieve plate (31) is arranged in the second cylinder (12), and the sieve plate (31) is in sliding fit with the inner wall of the second cylinder (12);

two ends of the elastic piece (32) are respectively connected with the shell (1) and the sieve plate (31);

the pushing component (33) is arranged on the shell (1) and is used for pushing the sieve plate (31) to move against the elastic force of the elastic piece (32);

the pushing component (33) comprises a fixed frame (331), a first bracket (332), a first pushing plate (333) and a second pushing plate (334);

the fixing frame (331) is arranged on the shell (1) and is connected with the outer wall of the shell (1);

the first bracket (332) is slidably arranged on the fixed bracket (331);

the first pushing plate (333) and the second pushing plate (334) are both slidably mounted on the first bracket (332);

an auxiliary control device (4) and a switching control device (5) are also arranged on the shell (1);

the auxiliary control device (4) comprises a linear driving assembly (41), wherein the linear driving assembly (41) is arranged on the shell (1) and is used for driving the push plate to move;

The switching control device (5) is arranged on the shell (1) and is used for controlling the first bracket (332) to move along the fixed bracket (331);

The switching control device (5) comprises a switching assembly (51) and a rotary driving assembly (52);

The switching assembly (51) comprises a mounting plate (511), a guide (512) and a control ring (513);

The mounting plate (511) is mounted on the first bracket (332);

the guide piece (512) is arranged on the mounting plate (511), and the guide piece (512) is provided with a long groove (5121);

The control ring (513) is rotatably arranged on the shell (1), the control ring (513) is provided with a fixed rod (5131), and the fixed rod (5131) is in sliding fit with the long groove (5121) of the guide piece (512);

the rotary driving assembly (52) is arranged on the shell (1) and the driving end of the rotary driving assembly is in transmission connection with the control ring (513);

The rotary drive assembly (52) includes a mount (521), a first rotary drive (522), a first rotary gear (523), and a toothed ring (524);

the mounting seat (521) is mounted on the shell (1);

a first rotary drive (522) is mounted on the mount (521);

the first rotary gear (523) is sleeved on the driving end of the first rotary driver (522);

the gear ring (524) is arranged on the control ring (513) and the axis of the gear ring is collinear with the axis of the control ring (513), and the first rotary gear (523) is in transmission connection with the gear ring (524);

The linear driving assembly (41) comprises a second rotary driver (411), a screw (412) and a push block (413);

a second rotary drive (411) is mounted on the first bracket (332);

The two screws (412) are arranged and rotatably mounted on the first bracket (332), and one screw (412) is in transmission connection with the driving end of the second rotary driver (411);

The two pushing blocks (413) are arranged, the two pushing blocks (413) are respectively connected with the first pushing plate (333) and the second pushing plate (334), and the two pushing blocks (413) are respectively in threaded connection with the two screw rods (412);

The transmission component (42) is arranged on the first bracket (332) and two ends of the transmission component are respectively connected with the two screws (412) in a transmission way;

the transmission assembly (42) comprises a rotating shaft (421), a second rotating gear (422), a sleeve (423) and a synchronous belt (424);

the rotation shafts (421) are provided in two and are rotatably mounted on the first bracket (332);

The two second rotating gears (422) are respectively sleeved on the two rotating shafts (421), and the two second rotating gears (422) are in transmission connection;

The sleeve (423) is provided with four sleeves which are respectively sleeved on the two rotating shafts (421) and the two screws (412);

Two synchronous belts (424) are arranged, and two ends of each synchronous belt (424) are respectively sleeved on two sleeves (423) on the rotating shaft (421) and the screw (412);

the screen plate (31) is provided with a fixed lug (311), the second cylinder body (12) is provided with a sliding groove (122), the fixed lug (311) is in sliding fit with the sliding groove (122), and two ends of the elastic piece (32) are respectively connected with the fixed lug (311) and the shell (1).

2. The PE gas pipe extrusion production device according to claim 1, wherein a leakage-proof assembly (34) is further arranged in the second barrel (12), and the leakage-proof assembly (34) comprises a leakage-proof plate (341) and a connecting ring (342);

the anti-leakage plate (341) is slidably arranged in the sliding groove (122), the fixing lug (311) is arranged on the anti-leakage plate (341), the anti-leakage plate (341) is fixedly connected with the sieve plate (31), and the length of the anti-leakage plate (341) is at least twice that of the sliding groove (122);

the connection ring (342) is connected to the leakage preventing plate (341).

3. The PE gas pipe extrusion production apparatus of claim 1, wherein the bottoms of the first push plate (333) and the second push plate (334) are each provided with a pressure sensor (335).

4. A PE gas pipe extrusion production plant according to claim 1, characterized in that the comminuting means (2) comprise a mounting frame (21), a third rotary drive (22) and a cutter (23);

the mounting rack (21) is arranged in the first cylinder (11) and is connected with the inner wall of the first cylinder (11);

A third rotary drive (22) is mounted on the mounting frame (21);

the cutting knife (23) is rotatably arranged on the mounting frame (21), and the driving end of the third rotary driver (22) is in transmission connection with the cutting knife (23).