CN110171118B

CN110171118B - PVC tubular product production system

Info

Publication number: CN110171118B
Application number: CN201910545413.0A
Authority: CN
Inventors: 杨磊
Original assignee: Anhui Jiuzhou Tong Pipe Technology Co ltd
Current assignee: Anhui Jiuzhou Tong Pipe Technology Co ltd
Priority date: 2019-06-22
Filing date: 2019-06-22
Publication date: 2021-04-02
Anticipated expiration: 2039-06-22
Also published as: CN110171118A

Abstract

The invention discloses a PVC (polyvinyl chloride) pipe production system which comprises a processing box body, wherein a feeding hole and a discharging hole are respectively formed in two ends of the processing box body; the processing box body is also provided with a traction device, a cutting device, a driving device, a flaring device and a clamping device; the driving device comprises a driving cylinder fixed on the inner top wall of the processing box body, a driving frame fixed on the end part of a piston rod of the driving cylinder, a driving roller rotationally connected to the driving frame, a driving motor fixed on the driving frame and a rotating roller rotationally connected to the inner side walls on the two sides of the processing box body and positioned on the lower side of the driving roller, wherein the driving motor is a servo motor; the flaring device comprises a lifting cylinder fixed on the inner bottom wall of the processing box body and a flaring box fixed on the lifting cylinder. The invention has the following effects: this production system has shortened the production processes of PVC tubular product production line, has avoided the horizontal translation of section form tubular product, is favorable to improving the space utilization of factory building, makes things convenient for the rational arrangement of PVC tubular product production line in the factory building.

Description

PVC tubular product production system

Technical Field

The invention relates to the field of PVC pipe production, in particular to a PVC pipe production system.

Background

Plastic pipes are a bulk product of plastic products, and the yield of rigid polyvinyl chloride (PVC) pipes accounts for more than 55% of the total plastic pipe yield. The PVC pipe has the advantages of light weight, corrosion resistance, raw material saving, convenience and rapidness in installation, long service life, small fluid resistance, sedimentation resistance and the like, and is widely applied to the fields of drainage, pollution discharge, irrigation and water conservancy irrigation in recent years. The existing PVC pipe production line comprises the working procedures of feeding, injection molding, cooling, traction, cutting, transverse translation, flaring, warehousing and the like, wherein the injection molding working procedure relates to a pipe injection molding machine, in the feeding working procedure, PVC granular raw materials are dried and then continuously enter the injection molding machine, and then the PVC raw materials form tubular products through the thermal forming action of the injection molding machine and are continuously extruded. And cooling the extruded tubular product through a cooling process, then cutting the tubular product into sections in a cutting process under the action of a tractor, transversely transferring the sectional tubes to a flaring machine through a manipulator or manually to flare one end of the sectional tubes, and finally, flaring the sectional tubes and then warehousing to finish the production and the manufacture of the PVC tubes.

In the process from a cutting procedure to a flaring procedure in the existing PVC pipe production line, due to the incompatibility of selected equipment, a transverse translation mode is often adopted to transfer a section-shaped pipe to a flaring machine, and an advanced mode such as an SGK-250 pipe full-automatic flaring machine is adopted. However, this type of flaring machine shifts the skew tubular product axis direction of section form tubular product to flaring machine department flaring through the mode of translation, leads to PVC tubular product production line to buckle the extension, has occupied a large amount of factory building spaces, has restricted the space utilization of factory building, is unfavorable for the rational arrangement of PVC tubular product production line in the factory building.

Therefore, a PVC pipe production system is needed urgently, the production process of a PVC pipe production line is shortened by the production system, the transverse translation of the sectional pipes is avoided, the space utilization rate of a factory building is improved, and the PVC pipe production line is convenient to arrange reasonably in the factory building.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a PVC pipe production system, which shortens the production process of a PVC pipe production line, avoids the transverse translation of a sectional pipe, is beneficial to improving the space utilization rate of a factory building and is convenient for the reasonable arrangement of the PVC pipe production line in the factory building.

The technical purpose of the invention is realized by the following technical scheme:

a PVC pipe production system comprises a processing box body which is arranged in a PVC production line and corresponds to a cooling process, wherein a feeding hole and a discharging hole are respectively formed in two ends of the processing box body; the processing box body is also provided with a traction device arranged at two ends of the processing box body, a cutting device arranged in the processing box body and positioned at one end of the processing box body close to the feeding hole, a driving device arranged in the processing box body and positioned at one end of the processing box body close to the discharging hole, an expanding device arranged in the processing box body and positioned between the cutting device and the driving device, and a clamping device arranged between the expanding device and the driving device and used for clamping a pipe product; the driving device comprises a driving cylinder fixed on the inner top wall of the processing box body, a driving frame fixed on the end part of a piston rod of the driving cylinder, a driving roller rotationally connected to the driving frame, a driving motor fixed on the driving frame and driving the driving roller to rotate, and a rotating roller rotationally connected to the inner side walls on the two sides of the processing box body and positioned on the lower side of the driving roller, wherein the driving motor is a servo motor; the flaring device comprises a lifting cylinder fixed on the inner bottom wall of the processing box body and a flaring box fixed on the end part of a piston rod of the lifting cylinder and used for flaring a pipe orifice.

By adopting the technical scheme, after the injection molding machine extrudes and cools the tubular product, the tubular product enters the processing box under the action of the traction device until the tubular product moves to a certain distance through the driving roller and the rotating roller, the driving cylinder works to drive the driving frame and the driving roller to move downwards so that the driving roller and the rotating roller are both abutted against the tubular product, then the cutting device works to cut the tubular product entering the processing box into sections, then the driving motor works to drive the driving roller to rotate so that the section-shaped tubular product moves for a certain distance towards the discharge port of the processing box until one end of the section-shaped tubular product close to the cut end is positioned between the driving device and the flaring device, then the lifting cylinder is started to drive the flaring box to move upwards until the flaring box is aligned with the section-shaped tubular product, then the driving motor rotates reversely to drive the driving roller to rotate, the drive section form tubular product moves towards the flaring box, make the notched one end of section form tubular product get into in the flaring box, then clamping device centre gripping section form tubular product, the mouth of pipe of flaring box division flaring section form tubular product, then clamping device removes the centre gripping to section form tubular product, driving motor work at last, section form tubular product after driving the flaring gets into the draw gear department that sets up in processing box discharge gate department, thereby make the section form tubular product after cutting and the flaring shift out the processing box, so this PVC tubular product production system makes and need not the flaring that horizontal translation can accomplish the tubular product after the tubular product cutting, the process has been saved, be favorable to improving the space utilization of factory building, make things convenient for the rational arrangement of PVC tubular product line in the factory building.

The flaring device further comprises an electric heating wire fixed on the inner wall of the flaring box, a flaring cylinder fixed on the outer side wall of the flaring box far away from the driving device and a flaring die head arranged in the flaring box, wherein the end part of a piston rod of the flaring cylinder penetrates through the flaring box and is fixed with the flaring die head.

By adopting the technical scheme, when the notched one end of section form tubular product gets into in the flaring box, heating wire work for temperature in the flaring box rises, thereby make the notched one end of section form tubular product soft, then flaring cylinder work, drive the flaring die head and fill in the notched end of section form tubular product, make the notched end opening of section form tubular product expand, then after section form tubular product shifted out the flaring box, the notched end cooling of section form tubular product, thereby make the flaring of section form tubular product accomplish.

The invention is further provided that the inside of the box wall of the flaring box is hollow and is filled with heat-insulating cotton.

Through adopting above-mentioned technical scheme, the cotton setting of heat preservation has effectively completely cut off the inside and outside temperature of flaring box, prevents the loss of the interior temperature of flaring box, strengthens the efficiency of heating wire hot melt section form tubular product, and in addition, the cotton isolated to the interior temperature of flaring box of heat preservation has effectively prevented that the high temperature environment in the flaring box from influencing the life of flaring cylinder.

The invention is further arranged in that the clamping device comprises a clamping frame fixed in the processing box body, clamping hoops connected in the clamping frame in a sliding manner, clamping lead screws vertically arranged in the clamping frame and connected with the clamping frame in a rotating manner, and clamping motors fixed on the upper surface of the clamping frame, wherein two clamping hoops are arranged in the clamping frame, and the two clamping frames are symmetrically arranged along the horizontal bisection plane of the clamping frame; the clamping screw rod is a bidirectional screw rod, and two ends of the clamping screw rod respectively penetrate through the end parts of the two clamping hoops and are in threaded connection with the two clamping hoops.

By adopting the technical scheme, when the cut end of the section-shaped pipe enters the flaring box, the clamping motor works to drive the clamping screw rod to rotate, so that the clamping hoops which are symmetrically distributed up and down move towards the section-shaped pipe passing through the clamping frame until the clamping hoops clamp the section-shaped pipe tightly, and the section-shaped pipe is prevented from moving during flaring.

The invention is further provided that a plurality of air passing holes are arranged on the clamping hoop, and the inner top wall and the inner bottom wall of the clamping frame are respectively fixed with a cooling fan.

Through adopting above-mentioned technical scheme, after the flaring die head is plugged in section form tubular product incision in, the centre gripping motor reversal, drive the centre gripping lead screw reversal, make the centre gripping hoop move towards the direction of keeping away from section form tubular product, the clamp to section form tubular product has been relieved, then driving motor work, drive section form tubular product and move towards processing box discharge gate, and when section form tubular product incision end was through the centre gripping frame, the cooling blower work that is fixed in the centre gripping frame, the air that is blown sweeps on the incision end of section form tubular product behind the air hole on the centre gripping hoop, thereby the cooling of section form tubular product incision end has been accelerated, prevent that section form tubular product incision end from passing through the drive roller when soft, and then prevent that section form tubular product incision end from warping.

The invention is further provided that the traction device comprises a fixed frame fixed on the outer side wall of the processing box body provided with the feed inlet and the discharge outlet, a traction roller rotationally connected between the fixed frames, a traction belt bypassing the traction roller and tightly abutting against the traction roller, a traction motor fixed on the fixed frame and used for driving the traction roller to rotate, and traction strips fixed on the surface of the traction belt far away from the traction roller and arranged along the length direction of the traction belt; the four traction rollers on the fixing frame are arranged, every two of the four traction rollers are distributed at two ends of the fixing frame, and the four traction rollers are symmetrically distributed along the horizontal plane; the two traction belts on the fixing frame are respectively sleeved on the traction rollers at different heights; synchronous gears which are meshed with each other are fixed on the end parts of the two traction rollers at one end of the fixing frame, which is far away from the traction motor.

Through adopting above-mentioned technical scheme, when the tubular product gets into between the traction area of distribution from top to bottom, the tubular product supports tightly between the strip of pulling on the traction area, traction motor work this moment has driven the traction area and has removed for the tubular product is driven to remove under the frictional force of pulling the strip, and the setting of apposition gear makes the reverse synchronous rotation of carry over pinch rolls of upper and lower distribution, thereby has effectively prevented the condition that the tubular product skidded because traction area moves the inconsistent and leads to, makes the removal of tubular product stable.

The invention is further provided that the surface of the traction strip close to the pipe product is arc-shaped and is provided with an arc-shaped heat dissipation groove.

Through adopting above-mentioned technical scheme, the setting of radiating groove is favorable to accelerating the loss of heat between tubular product surface and the traction strip.

The cutting device comprises a bearing plate fixed on the inner side wall of the processing box body, wherein the inner side wall is provided with the feed port, a cutting cylinder fixed on the inner top wall of the processing box body, a cutting plate fixed on the end part of a piston rod of the cutting cylinder, a rotating plate fixed on the bottom surface of the cutting plate, a cutting motor fixed on the side wall of the rotating plate, a cutting wheel fixed on the end part of an output shaft of the cutting motor, an elastic telescopic rod fixed on the bottom surface of the cutting plate and a pressing hoop fixed at the lower end of the elastic telescopic rod; the elastic telescopic rod comprises a fixed column fixed on the bottom surface of the cutting board, a telescopic sleeve fixed at the top of the compression hoop, a telescopic block connected in the telescopic sleeve in a sliding mode and an extension spring fixed between the bottom surface of the telescopic block and the inner bottom wall of the telescopic sleeve, and the lower end of the fixed column penetrates through the upper surface of the telescopic sleeve and is fixed with the upper surface of the telescopic block.

Through adopting above-mentioned technical scheme, after the tubular product got into processing box one section distance through the feed inlet under draw gear's effect, cutting cylinder work, it moves down to drive the cutting board, compress tightly the hoop at first contact tubular product surface, make the tubular product press from both sides tightly between the bearing board and the hoop in vertical direction, then cutting motor work, drive the cutting wheel and rotate, then the cutting cylinder continues to drive the cutting board and moves down, make the spring compression that stretches, at this moment, the tubular product is firm, the cutting wheel moves down and runs through the tubular product, thereby make the tubular product cut into the segmental form.

In conclusion, the beneficial technical effects of the invention are as follows:

1. when an injection molding machine extrudes a tubular product and cools the tubular product, the tubular product enters a processing box under the action of a traction device, the driving cylinder works until the tubular product moves to a certain distance through a driving roller and a rotating roller, the driving frame and the driving roller are driven to move downwards, so that the driving roller and the rotating roller are both abutted against the tubular product, then the cutting device works to cut the tubular product entering the processing box into sections, then the driving motor works to drive the driving roller to rotate, so that the section-shaped tubular product moves for a certain distance towards a discharge port of the processing box, until one end of the section-shaped tubular product close to the cut end is positioned between the driving device and a flaring device, then the flaring cylinder is started to drive a flaring box to move upwards until the flaring box is aligned with the section-shaped tubular product, then the driving motor rotates reversely to drive the driving roller to rotate, so that the section, the PVC pipe production system has the advantages that one end of a cut of a sectional pipe enters the flaring box, then the clamping device clamps the sectional pipe, the flaring box opens the pipe orifice of the flared sectional pipe, then the clamping device releases clamping of the sectional pipe, and finally the driving motor works to drive the flared sectional pipe to enter the traction device arranged at the discharge port of the processing box body, so that the cut and flared sectional pipe is moved out of the processing box body, and therefore, the PVC pipe production system can complete flaring of the pipe product without transverse translation after cutting the pipe product, saves working procedures, is beneficial to improvement of space utilization rate of a factory building, and facilitates reasonable arrangement of a PVC pipe production line in the factory building;

2. when one end of the cut of the section-shaped pipe enters the flaring box, the electric heating wire works to raise the temperature in the flaring box, so that the cut end of the section-shaped pipe is soft, then the flaring cylinder works to drive the flaring die head to be plugged into the cut end of the section-shaped pipe, so that the opening of the cut end of the section-shaped pipe is flared, and then after the section-shaped pipe is moved out of the flaring box, the cut end of the section-shaped pipe is cooled, so that the flaring of the section-shaped pipe is finished;

3. when the cut end of the section-shaped pipe enters the flaring box, the clamping motor works to drive the clamping screw rod to rotate, so that the clamping hoops which are symmetrically distributed up and down move towards the section-shaped pipe passing through the clamping frame until the clamping hoops clamp the section-shaped pipe, and the section-shaped pipe is prevented from moving during flaring.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic view of the structure of the driving device;

FIG. 3 is a schematic view of the construction of the draft gear;

FIG. 4 is a schematic structural view of the elastic telescopic rod;

fig. 5 is a schematic structural view of the flaring device.

In the figure: 1. processing the box body; 11. a feed inlet; 12. a discharge port; 2. a traction device; 21. a fixed mount; 22. a traction roller; 23. a synchronizing gear; 24. a traction belt; 25. a traction motor; 26. a traction bar; 261. an arc-shaped clamping groove; 262. a heat sink; 3. a cutting device; 31. a support plate; 32. cutting the air cylinder; 33. cutting the board; 34. a rotating plate; 35. cutting the motor; 36. a cutting wheel; 37. an elastic telescopic rod; 371. fixing a column; 372. a telescopic sleeve; 373. a telescopic block; 374. extending the spring; 38. a compression collar; 4. a drive device; 41. a driving cylinder; 42. a driving frame; 43. a drive roller; 44. a drive motor; 45. a rotating roller; 5. a clamping device; 51. a clamping frame; 511. a guide bar; 512. a cooling fan; 52. a clamping hoop; 521. air passing holes; 53. clamping a screw rod; 54. a clamping motor; 6. a flaring device; 61. a lifting cylinder; 62. a flaring box; 621. heat preservation cotton; 63. an electric heating wire; 64. a flaring cylinder; 65. and (4) a flaring die head.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a PVC pipe production system includes a processing box 1, a traction device 2, a cutting device 3, a driving device 4, a clamping device 5 and a flaring device 6. Referring to fig. 2, the processing box 1 is a rectangular box-shaped structure, and has a hollow interior, and two ends of the processing box 1 are respectively provided with a feeding port 11 and a discharging port 12. The feed inlet 11 is arranged on the outer side wall of the processing box body 1 close to the cooling process of the PVC pipe production line, the opening of the feed inlet 11 is circular, and the axis of the feed inlet 11 coincides with the axis of a pipe product on the PVC pipe production line. The discharge port 12 is arranged on the outer side wall of one end of the processing box body 1 far away from the feed port 11, the opening of the discharge port is circular, and the axis of the discharge port 12 coincides with the axis of the feed port 11.

As shown in fig. 1 and 3, the traction device 2 includes a fixing frame 21, a traction roller 22, a synchronizing gear 23, a traction belt 24, a traction motor 25, and a traction bar 26. Referring to fig. 2, the fixing frames 21 are plate-shaped structures with U-shaped cross sections, the length direction of the fixing frames is the same as the length direction of the processing box 1, two fixing frames 21 are provided, and the U-shaped end surfaces of the two fixing frames 21 are fixed to the outer side walls of the processing box 1, which are provided with the feed port 11 and the discharge port 12. The drawing roller 22 is a circular roller-shaped structure, the axis of the drawing roller is horizontal and vertical to the axis of the feed inlet 11, and two ends of the drawing roller 22 are respectively rotatably connected with the inner side walls of two sides of the fixing frame 21. Four traction rollers 22 are arranged on the same fixing frame 21, every two of the four traction rollers 22 are distributed at two ends of the fixing frame 21, and the four traction rollers 22 are symmetrically distributed relative to a horizontal plane where the axis of the feed port 11 is located. The traction motor 25 is a commonly used servo motor, and is arranged at one end of the fixing frame 21 close to the processing box body 1, the traction motor 25 is fixed with the outer side wall of one side of the fixing frame 21, the output shaft of the traction motor 25 is fixed with the end part of the higher traction roller 22 at one end of the fixing frame 21 close to the processing box body 1, and when the traction motor 25 works, the traction roller 22 at the position is driven to rotate. In addition, the end parts of the two traction rollers 22 at one end of the fixing frame 21 far away from the processing box 1 penetrate through the fixing frame 21 and are connected with the outer side wall of the traction motor 25, two synchronous gears 23 are arranged on the same fixing frame 21, the two synchronous gears 23 are respectively sleeved on the end parts of the traction rollers 22 penetrating through the fixing frame 21 and are fixed with the end parts, and the two synchronous gears 23 at the position are meshed with each other, so that the two traction rollers 22 on the upper side and the lower side synchronously and reversely rotate. The two traction belts 24 are arranged on the same fixing frame 21, the traction belts 24 are of a closed belt-shaped structure, the two traction belts 24 are respectively sleeved on and bypass the two traction rollers 22 at the same height on the fixing frame 21, and the traction belts 24 are tightly abutted to the roller surfaces of the traction rollers 22. The draw bar 26 is an elongated structure with a rectangular cross section, the length direction of the draw bar is consistent with the width direction of the draw belt 24, and the draw bar 26 is fixed on the surface of the draw belt 24 far away from the draw roller 22. Draw strip 26 to be equipped with many, many draw strip 26 along the closed length direction align to grid of drawing area 24, and draw strip 26 to keep away from the surface of drawing area 24 and seted up arc clamp groove 261, seted up radiating groove 262 on the inner wall of arc clamp groove 261. The cross section of the heat dissipation groove 262 is rectangular, the heat dissipation groove extends along the arc direction of the arc-shaped clamping groove 261, the number of the heat dissipation grooves 262 on the arc-shaped clamping groove 261 is three, and the three heat dissipation grooves 262 are uniformly arranged along the axial direction of the feed port 11. When the tubular product gets into between the traction area 24, the tubular product supports tightly with the arc of the strip 26 that pulls of upper and lower both sides respectively and presss from both sides the groove 261 inner wall, traction motor 25 work, the carry over pinch rolls 22 that drive to be connected with it rotates, make it rotate under the frictional action of carry over pinch rolls 24 through carry over pinch rolls 22 that carry over pinch rolls 24 to it downside carry over pinch rolls 22 rotates, the carry over pinch rolls 24 synchronous orientation that has realized upper and lower both sides and keep away from mount 21 and remove, make the tubular product move towards the direction of processing box 1 in and keeping away from processing box 1, play the effect of pulling the tubular product.

As shown in fig. 1 and fig. 3, the cutting device 3 is disposed in the processing box 1 and located at one end of the processing box 1 close to the feeding port 11, and the cutting device 3 includes a supporting plate 31, a cutting cylinder 32, a cutting plate 33, a rotating plate 34, a cutting motor 35, a cutting wheel 36, an elastic expansion rod 37, and a pressing hoop 38. Referring to fig. 2, the supporting plate 31 has a plate-shaped structure with a circular arc-shaped cross section, the length direction of the supporting plate is the same as the length direction of the processing box 1, one end of the supporting plate 31 is fixed to the inner side wall of the processing box 1, which is provided with the feed port 11, and the arc-shaped surface of the supporting plate 31 with a smaller area is flush with the inner wall of the feed port 11. The cutting cylinder 32 is a common cylinder, which is fixed on the inner top wall of the processing box 1, and the piston rod of the cutting cylinder is arranged downwards, the cutting plate 33 is of a rectangular plate-shaped structure, which is horizontally arranged in the processing box 1, and the upper surface of the cutting plate 33 is fixed with the end part of the piston rod of the cutting cylinder 32. The rotating plate 34 is a rectangular plate-shaped structure, and is vertically arranged at the lower side of the cutting plate 33, the upper surface of the rotating plate 34 is fixed with the bottom surface of the cutting plate 33, and in addition, the axis of the feed port 11 is perpendicular to the plate surface of the rotating plate 34. The cutting motor 35 is a servo motor, and is fixed on one side of the rotating plate 34, and an output shaft of the cutting motor 35 penetrates out of the other side of the rotating plate 34 far away from the cutting motor 35. The cutting wheel 36 is a circular wheel-shaped structure, the arc edge of the cutting wheel is provided with a cutting edge, the diameter of the cutting wheel 36 is 2.5 times of the outer diameter of the pipe product, and the middle part of the end surface of one side of the cutting wheel 36 is fixed with the end part of the output shaft of the cutting motor 35. As shown in fig. 4, the elastic telescopic rod 37 includes a fixing column 371, a telescopic sleeve 372, a telescopic block 373, and an extension spring 374. The fixed column 371 is a column structure with a square horizontal cross section, and is vertically arranged on one side of the rotating plate 34 far away from the feed port 11, and the upper end of the fixed column 371 is fixed with the bottom surface of the cutting plate 33. The telescopic sleeve 372 is of a square columnar structure with a horizontal cross section, is hollow inside and is vertically arranged on the lower side of the fixed column 371. The retractable block 373 is a square block structure, and is disposed in the retractable sleeve 372 and slidably connected to the inner side wall of the retractable sleeve 372. The extension spring 374 is disposed in the telescopic sleeve 372, the axis of the extension spring 374 is vertical, the upper end of the extension spring 374 is fixed to the bottom surface of the telescopic block 373, the lower end of the extension spring 374 is fixed to the bottom wall of the telescopic sleeve 372, and the extension spring 374 keeps an extended state when the telescopic sleeve 372 and the fixed column 371 are not affected by external force. The clamp 38 is an arc-shaped plate-shaped structure, the arc-shaped surface of the larger area of the clamp 38 faces upward, the middle part of the arc-shaped surface of the larger area of the clamp 38 is fixed with the lower end of the telescopic sleeve 372, and in addition, when the clamp 38 is not in contact with the tubular product, the clamp 38 is located at the lower side of the cutting wheel 36 in the vertical direction. After the tubular product moved a section of distance in getting into processing box 1 under draw gear's 2 effect, cutting cylinder 32 work, its piston rod promoted cutting board 33 and moved down, make compressing tightly hoop 38 contact tubular product, then cutting board 33 continues to move down, it moves down to drive the dead lever, make flexible block 373 slide down in telescope tube 372, the spring 374 that stretches out compresses tightly this moment compresses, make telescope tube 372 drive compressing tightly hoop 38 and tubular product top support tightly, at this moment, cutting motor 35 works, drive cutting wheel 36 and rotate, make cutting wheel 36 run through tubular product along with moving down of cutting board 33, thereby the tubular product has been cut.

As shown in fig. 1 and 2, the driving device 4 is disposed in the processing box 1 and located at one end of the processing box 1 close to the discharge port 12, and the driving device 4 includes a driving cylinder 41, a driving rack 42, a driving roller 43, a driving motor 44, and a rotating roller 45. The driving cylinder 41 is a cylinder commonly used in industry, and is fixed on the inner top wall of the processing box 1, and the end of the piston rod of the driving cylinder 41 is arranged downwards. The driving frame 42 is a U-shaped plate structure, two ends of the driving frame are arranged downwards, the U-shaped surface of the driving frame 42 is perpendicular to the axis of the discharge port 12, and the middle part of the upper surface of the driving frame 42 is fixed with the end part of the piston rod of the driving cylinder 41. The driving roller 43 is a circular roller-shaped structure, the roller surface of which is concave towards the axis of the driving roller and is arc-shaped, and two ends of the driving roller are respectively connected with the inner side walls at two ends of the driving frame 42 in a rotating manner. The driving motor 44 is a servo motor fixed on one end outer side wall of the driving frame 42, and an output shaft of the driving motor 44 passes through the driving frame 42 and is fixed with an end of the driving roller 43. The rotating roller 45 is in a round roller shape, the roller surface of the rotating roller is concave towards the axis of the rotating roller and is in an arc shape, the axis of the rotating roller 45 is parallel to the axis of the driving roller 43 and is arranged on the lower side of the axis of the driving roller 43, two ends of the rotating roller 45 are respectively connected with the inner side walls of two sides of the processing box body 1 in a rotating mode, and in addition, the arc-shaped surrounding center of the roller surface of the rotating roller 45 is overlapped with the axis of the discharge port.

As shown in fig. 1 and 2, the clamping device 5 includes a clamping frame 51, a clamping hoop 52, a clamping screw 53, and a clamping motor 54. The clamping frame 51 is a rectangular frame-shaped structure, and is vertically disposed on one side of the driving device 4 away from the discharge port 12, and the outer side walls of both sides of the clamping frame 51 are fixed to the inner side walls of both sides of the processing box 1, respectively. The clamping hoops 52 are arc-shaped, two ends of each clamping hoop 52 are bent to be horizontal, the two clamping hoops 52 are arranged in a total manner, and the two clamping hoops 52 are symmetrically arranged about a horizontal bisecting plane of the clamping frame 51. The clamping frame 51 is internally provided with a guide rod 511, the guide rod 511 is in a circular rod shape and is vertically arranged in the clamping frame 51, the upper end of the guide rod 511 is fixed with the inner top wall of the clamping frame 51, and the lower end of the guide rod 511 is fixed with the inner bottom wall of the clamping frame 51. In addition, the guide rods 511 vertically penetrate through the end of the clamping hoop 52 and are slidably connected with the clamping hoop 52, two guide rods 511 are provided, and the two guide rods 511 are respectively arranged on two sides of the clamping frame 51. The clamping screw 53 is a bidirectional screw, two ends of the clamping screw are respectively rotatably connected with the inner top wall and the inner bottom wall of the clamping frame 51, the clamping screw 53 respectively penetrates through the ends of the clamping hoops 52 on the upper side and the lower side and is respectively in threaded connection with the two clamping hoops 52, and the threaded directions of the clamping screw 53 in threaded connection with the two clamping hoops 52 are opposite. The clamping motor 54 is a servo motor, and is fixed on the upper surface of the clamping frame 51 and located on one side of the clamping frame 51 close to the clamping screw 53, and the output shaft of the clamping motor 54 penetrates through the upper surface of the clamping frame 51 and is fixed with the upper end of the clamping screw 53, so that when the clamping motor 54 works, the clamping screw 53 rotates to drive the two clamping hoops 52 which are distributed up and down to move reversely. Be fixed with cooling blower 512 on top wall and the interior diapire in the centre gripping frame 51, and the arc surface of centre gripping hoop 52 has seted up air passing hole 521, and air passing hole 521's opening is circular, and when cooling blower 512 during operation, the air that cooling blower 512 was blown sweeps on the tubular product through air passing hole 521 and centre gripping hoop 52 both sides.

As shown in fig. 1 and 5, the flaring device 6 is disposed between the clamping device 5 and the cutting device 3, and the flaring device 6 includes a lifting cylinder 61, a flaring box 62, a heating wire 63, a flaring cylinder 64, and a flaring die head 65. The lifting cylinder 61 is fixed on the inner bottom wall of the processing box body 1, and the end part of a piston rod of the lifting cylinder faces upwards. The flaring box 62 is a circular box-shaped structure, the opening of the flaring box 62 faces the clamping device 5, the axis of the flaring box 62 is overlapped with the axis of the feed inlet 11, and the outer wall of the bottom of the flaring box 62 is fixed with the end part of the piston rod of the lifting cylinder 61. The heating wire 63 is a conventional electric heating device, and is in a spiral shape, the heating wire 63 is fixed on the arc-shaped inner wall of the flaring cartridge 62, and the spiral axis of the heating wire 63 coincides with the axis of the flaring cartridge 62. When the heating wire 63 is energized, the temperature inside the flare box 62 rises, so that the tube material entering the flare box 62 is softened. In addition, the inside of the box wall of the flaring box 62 is hollow and filled with heat insulation cotton 621, and the heat insulation cotton 621 is a common heat insulation material and is used for isolating the temperature in the flaring box 62. The flaring cylinder 64 is an existing cylinder device, and is fixed on the side wall of the flaring box 62 far away from the clamping device 5, and the end of the piston rod of the flaring cylinder 64 passes through the flaring box 62 and is arranged in the flaring box 62. The flaring die head 65 is a circular block-shaped structure, the axis of the flaring die head is overlapped with the axis of the flaring box 62, the end face, far away from the opening of the flaring box 62, of the flaring die head 65 is fixed with the end part of the piston rod of the flaring cylinder 64, and in addition, the edge of the end face, close to the opening of the flaring box 62, of the flaring die head 65 is chamfered.

The working principle of the embodiment is as follows: when a pipe product enters the position between the traction belts 24 at the feed inlet 11 of the processing box body 1 from the cooling process, the pipe product is tightly propped between the traction strips 26 at the upper side and the lower side, at the moment, the traction motor 25 works to drive the traction belts 24 and the traction strips 26 to move, so that the pipe product enters the processing box body 1 through the feed inlet 11 until the end part of the pipe product sequentially passes through the supporting plate 31, the clamping frame 51 and the rotating roller 45 and extends for a certain distance, the cutting cylinder 32 and the cutting motor 35 work to cut the part of the pipe product in the processing box body 1 into sections, then the driving cylinder 41 and the driving motor 44 work to drive the section-shaped pipe to move towards the discharge port 12 until the cut end of the section-shaped pipe is positioned between the clamping frame 51 and the flaring device 6, then the lifting cylinder 61 works to drive the flaring box 62 to rise to the height at which the section-shaped pipe, the segment-shaped pipe is driven to move, the cut end of the segment-shaped pipe enters the flaring box 62, the clamping motor 54 works at the moment, the clamping screw rod 53 is driven to rotate, the clamping hoops 52 on the upper side and the lower side of the segment-shaped pipe clamp the segment-shaped pipe, then the heating wires 63 are electrified and heated, the cut end of the segment-shaped pipe is made to be soft, then the flaring air cylinder 64 works, the flaring die head 65 is driven to be plugged into the cut end of the segment-shaped pipe, the cut end of the segment-shaped pipe is made to be flared, then the clamping motor 54 rotates reversely, the clamping screw rod 53 is driven to rotate, the clamping hoops 52 are made to be separated from the segment-shaped pipe, then the driving motor 44 works, the driving roller 43 is driven to rotate, the segment-.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a PVC tubular product production system, is including setting up in PVC production line with the corresponding processing box (1) of cooling process, feed inlet (11) and discharge gate (12), characterized by have been seted up respectively to processing box (1) both ends: the processing box body (1) is further provided with a traction device (2) arranged at two ends of the processing box body (1), a cutting device (3) arranged in the processing box body (1) and positioned at one end, close to the feeding hole (11), of the processing box body (1), a driving device (4) arranged in the processing box body (1) and positioned at one end, close to the discharging hole (12), of the processing box body (1), a flaring device (6) arranged in the processing box body (1) and positioned between the cutting device (3) and the driving device (4), and a clamping device (5) arranged between the flaring device (6) and the driving device (4) and used for clamping a pipe product; the driving device (4) comprises a driving cylinder (41) fixed on the inner top wall of the processing box body (1), a driving frame (42) fixed on the end part of a piston rod of the driving cylinder (41), a driving roller (43) rotationally connected to the driving frame (42), a driving motor (44) fixed on the driving frame (42) and used for driving the driving roller (43) to rotate, and a rotating roller (45) rotationally connected to the inner side walls on the two sides of the processing box body (1) and positioned on the lower side of the driving roller (43), wherein the driving motor (44) is a servo motor capable of rotating forwards and backwards; the clamping device (5) is used for temporarily clamping the pipe to ensure that the flaring operation is smoothly finished; the flaring device (6) comprises a lifting cylinder (61) fixed on the inner bottom wall of the processing box body (1) and a flaring box (62) fixed on the end part of a piston rod of the lifting cylinder (61) and used for flaring a pipe orifice.

2. The PVC pipe production system of claim 1, wherein: the flaring device (6) further comprises an electric heating wire (63) fixed on the inner wall of the flaring box (62), a flaring cylinder (64) fixed on the outer side wall, far away from the driving device (4), of the flaring box (62), and a flaring die head (65) arranged in the flaring box (62), wherein the end part of a piston rod of the flaring cylinder (64) penetrates through the flaring box (62) and is fixed with the flaring die head (65).

3. The PVC pipe production system of claim 2, wherein: the inside of the box wall of the flaring box (62) is hollow and is filled with heat insulation cotton (621).

4. The PVC pipe production system of claim 1, wherein: the clamping device (5) comprises a clamping frame (51) fixed in the processing box body (1), clamping hoops (52) connected in the clamping frame (51) in a sliding manner, clamping screw rods (53) vertically arranged in the clamping frame (51) and rotatably connected with the clamping frame (51), and clamping motors (54) fixed on the upper surface of the clamping frame (51), wherein the number of the clamping hoops (52) in the clamping frame (51) is two, and the two clamping frames (51) are symmetrically arranged along the horizontal bisector of the clamping frame (51); the clamping screw rod (53) is a bidirectional screw rod, and two ends of the clamping screw rod (53) respectively penetrate through the end parts of the two clamping hoops (52) and are in threaded connection with the two clamping hoops (52).

5. The PVC pipe production system of claim 4, wherein: a plurality of air passing holes (521) are formed in the clamping hoop (52), and cooling fans (512) are respectively fixed on the inner top wall and the inner bottom wall of the clamping frame (51).

6. The PVC pipe production system of claim 1, wherein: the traction device (2) comprises a fixed frame (21) fixed on the outer side wall of the processing box body (1) provided with the feed inlet (11) and the discharge outlet (12), a traction roller (22) rotatably connected between the fixed frames (21), a traction belt (24) bypassing the traction roller (22) and tightly abutted against the traction roller, a traction motor (25) fixed on the fixed frame (21) and used for driving the traction roller (22) to rotate, and traction strips (26) fixed on the surface of the traction belt (24) far away from the traction roller (22) and arranged along the length direction of the traction belt (24); the four traction rollers (22) on the fixed frame (21) are arranged, every two of the four traction rollers (22) are distributed at two ends of the fixed frame (21), and the four traction rollers (22) are symmetrically distributed along the horizontal plane; the two traction belts (24) on the fixing frame (21) are respectively sleeved on the traction rollers (22) at different heights; synchronous gears (23) which are meshed with each other are fixed on the end parts of two traction rollers (22) at one end of the fixed frame (21) far away from the traction motor (25).

7. The PVC pipe production system of claim 6, wherein: the surface of the traction strip (26) close to the pipe product is arc-shaped and is provided with an arc-shaped heat dissipation groove (262).

8. The PVC pipe production system of claim 1, wherein: the cutting device (3) comprises a bearing plate (31) fixed on the inner side wall of the processing box body (1) provided with the feed port (11), a cutting cylinder (32) fixed on the inner top wall of the processing box body (1), a cutting plate (33) fixed on the end part of a piston rod of the cutting cylinder (32), a rotating plate (34) fixed on the bottom surface of the cutting plate (33), a cutting motor (35) fixed on the side wall of the rotating plate (34), a cutting wheel (36) fixed on the end part of an output shaft of the cutting motor (35), an elastic telescopic rod (37) fixed on the bottom surface of the cutting plate (33) and a pressing hoop (38) fixed at the lower end of the elastic telescopic rod (37); the elastic telescopic rod (37) comprises a fixed column (371) fixed on the bottom surface of the cutting board (33), a telescopic sleeve (372) fixed at the top of the pressing hoop (38), a telescopic block (373) connected in the telescopic sleeve (372) in a sliding mode and an extension spring (374) fixed between the bottom surface of the telescopic block (373) and the inner bottom wall of the telescopic sleeve (372), wherein the lower end of the fixed column (371) penetrates through the upper surface of the telescopic sleeve (372) and is fixed with the upper surface of the telescopic block (373).