CN213972547U - Plastic tubing shape correcting unit - Google Patents

Abstract

The utility model discloses a plastic tubing shape correcting unit, including repairing the shape subassembly, it is equipped with horizontal compression roller and backing roll to repair the shape subassembly, horizontal compression roller is formed with and is used for leaning on the first arc annular of extruded plastic pipe, the backing roll is formed with and is used for leaning on the second arc annular of extruded plastic pipe, first arc annular corresponds the setting with second arc annular, first arc annular encloses into the first shape mouth of repairing that is used for revising the section outer circular form of plastic pipe with second arc annular, it is equipped with the mount pad to repair the shape subassembly, the both ends of backing roll rotate with the mount pad respectively and are connected, it is equipped with the slider to repair the shape subassembly, slider and the mount pad sliding connection that corresponds, the both ends of horizontal compression roller rotate with the slider respectively and are connected, it is equipped with the slider power supply mechanism that is used for applying pressure to the plastic pipe to repair the shape subassembly, slider power supply mechanism link block. The utility model discloses a cross-section external circular shape that plastic tubing shape correcting unit can revise the plastic pipe is favorable to improving the product quality of plastic tubing.

Description

Plastic tubing shape correcting unit

Technical Field

The utility model relates to a plastic tubing shaping auxiliary device field, concretely relates to plastic tubing shape correcting unit.

Background

At present, plastic pipes are needed in many applications, and are generally used for conveying fluids, and the plastic pipes are commonly used in the pipelines for conveying tap water or sewage in the current buildings. The plastic tubing passes through the extrusion moulding technology preparation, and the plastic tubing is when extruding through extrusion tooling because the plastic tubing still is in the software state, leads to the plastic tubing to produce easily and warp, that is to say the outer disc shape in cross-section of plastic tubing produces approximate elliptical deformation, so when the plastic tubing need plug into the use, appear difficult to plug into even can't plug into the condition of use with the joint and take place, so need utility model a can solve the device of above-mentioned problem to improve the product quality of plastic tubing.

Disclosure of Invention

An object of the utility model is to overcome prior art's not enough, provide a plastic tubing shape correcting unit, it can revise the outer circular shape of cross-section of plastics pipe.

The purpose of the utility model is realized by the following technical scheme.

The utility model discloses a plastic tubing shape correcting unit, including repairing the shape subassembly, it is equipped with horizontal compression roller and backing roll to repair the shape subassembly, horizontal compression roller is formed with the first arc annular that is used for pasting and leans on the extruded plastic pipe, the backing roll is formed with the second arc annular that is used for pasting and leans on the extruded plastic pipe, first arc annular with the second arc annular corresponds the setting, first arc annular with the second arc annular encloses into the first shape mouth of repairing that is used for revising the section outer circularity of plastic pipe, it is equipped with the mount pad to repair the shape subassembly, the both ends of backing roll respectively with the mount pad rotates to be connected, it is equipped with the slider to repair the shape subassembly, the slider with correspond mount pad sliding connection, the both ends of horizontal compression roller respectively with the slider rotates to be connected, it is equipped with the slider power supply mechanism that is used for exerting pressure to the plastic pipe to repair the shape subassembly, the sliding block force supply mechanism is connected with the sliding block.

Preferably, the slider force supplying mechanism includes a first upper and lower positioning screw, a spring and a first nut, the lower end of the first upper and lower positioning screw is fixedly connected with the slider, the upper portion of the first upper and lower positioning screw is adapted to penetrate through the mounting seat, the first nut is screwed with the upper portion of the first upper and lower positioning screw, the spring is sleeved on the first upper and lower positioning screw, and the spring is arranged between the slider and the mounting seat.

Preferably, the automatic winding device further comprises a transmission mechanism, wherein the transmission mechanism is provided with a motor, a worm gear reducer, a first chain wheel, a second chain wheel, a third chain wheel, a tensioning chain wheel and a first chain, the first chain wheel is coaxially and fixedly connected with the end part of the supporting roller, the second chain wheel is coaxially and fixedly connected with the end part of the transverse pressing roller, the third chain wheel is coaxially and fixedly connected with an output shaft of the worm gear reducer, the motor is in driving connection with the worm gear reducer, the first chain wheel, the second chain wheel, the third chain wheel and the tensioning chain wheel are connected through the first chain, the second chain wheel, the third chain wheel and the tensioning chain wheel are arranged on the inner side of the first chain, and the first chain wheel is arranged on the outer side of the first chain.

Preferably, the number of the shape modification assemblies is at least two, the adjacent transverse pressing rollers are connected with each other through corresponding chains, and the adjacent supporting rollers are connected with each other through corresponding chains.

Preferably, the cross compression roller is formed with the third arc annular that is used for pasting the extruded plastic pipe, the backing roll is formed with the fourth arc annular that is used for pasting the extruded plastic pipe, the third arc annular with the fourth arc annular corresponds the setting, the third arc annular with the second of the outer circular form of cross-section that the fourth arc annular encloses into being used for revising the plastic pipe is repaiied the shape mouth.

Preferably, the feeding guide assembly is provided with guide wheels, a wheel shaft and a bearing plate for bearing the plastic round pipe, a first long hole is formed in the bearing plate, the lower end of the wheel shaft penetrates through the first long hole in a matching mode, the wheel shaft and the bearing plate are fixed through screws, the guide wheels are coaxially and rotatably connected with the wheel shaft, the number of the guide wheels is two, and a channel for the plastic round pipe to pass in a matching mode is formed between the two guide wheels.

Preferably, the material discharging device further comprises a material discharging guide assembly, wherein the material discharging guide assembly comprises a first vertical compression roller, a second vertical compression roller, a vertical sliding seat, a stand column, a material clamping screw rod and a second vertical positioning screw rod, the vertical sliding seat is connected with the stand column in a sliding manner, the vertical sliding seat is fixedly connected with a guide shaft, the guide shaft is perpendicular to the stand column, the guide shaft is connected with a first transverse sliding seat and a second transverse sliding seat in a sliding manner, the first vertical compression roller is rotatably connected onto the second transverse sliding seat, the second vertical compression roller is rotatably connected onto the first transverse sliding seat, the upper end of the stand column is fixedly connected with a top fixing plate, the second vertical positioning screw rod is rotatably connected with the top fixing plate, the second vertical positioning screw rod is in threaded connection with the vertical sliding seat, one end of the material clamping screw rod is hinged with the first transverse sliding seat, and the other end corresponding to the material clamping screw rod is in threaded, the second sideslip seat fixedly connected with baffle, the baffle is formed with the breach, press from both sides the material screw rod and pass the breach, the baffle is located the second nut with press from both sides the material screw rod with between the articulated one end of first sideslip seat, first perpendicular compression roller with the second is erect the compression roller and is enclosed to become to have the third that all is used for revising the circular form outside the cross section of plastics pipe and is repaiied shape mouthful and the fourth and repaiied the shape mouthful, the third is repaiied the shape mouthful and can just be right first repaiied the shape mouthful, the fourth is repaiied the shape mouthful and can just be right the second is repaiied the shape mouthful.

Preferably, the upper end of the second vertical positioning screw is fixedly connected with a rotating arm, the rotating arm is perpendicular to the second vertical positioning screw, and the end of the rotating arm is fixedly connected with a handle.

Preferably, the transverse press roll, the support roll, the first vertical press roll and the second vertical press roll are all rubber rolls.

Compared with the prior art, the utility model, its beneficial effect is: the shaping assembly is provided with a sliding block force supply mechanism for applying pressure to the plastic circular pipe, the sliding block force supply mechanism is connected with the sliding block, so that when the plastic circular pipe is conveyed through the first shaping opening, the first shaping opening exerts an extrusion effect on the plastic circular pipe to correct the outer circular shape of the plastic circular pipe, therefore, the plastic pipe shape correcting device of the utility model is beneficial to improving the product quality of the plastic pipe.

Drawings

Fig. 1 is a front view structure diagram of the shape correction device of the present invention.

Fig. 2 is a schematic top view of the shape correction device of the present invention.

Fig. 3 is a right view structural diagram of the combination of the shape modification assembly and the transmission mechanism of the present invention.

Fig. 4 is a schematic diagram of the transmission mechanism of the present invention.

Fig. 5 is a schematic view of the front view structure of the shape-modifying assembly of the present invention.

Fig. 6 is a front view schematic structural diagram of the discharge guide assembly of the present invention.

Fig. 7 is a schematic top view of the discharge guide assembly of the present invention.

Fig. 8 is a left side view structure diagram of the combination of the first vertical compression roller and the second vertical compression roller of the discharging guide assembly of the present invention.

Fig. 9 is a right view structural diagram of the combination of the first shaping opening of the shaping assembly and the plastic round tube of the present invention.

Fig. 10 is a right view structural diagram of the combination of the second shaping opening of the shaping assembly and the plastic round tube of the present invention.

Fig. 11 is a schematic cross-sectional view of the feed guide assembly in the right-side view.

Fig. 12 is a schematic cross-sectional structure of the round plastic pipe in a deformed state.

Description of reference numerals: 1-a shaping component; 11-a transverse press roll; 1101-a first arc-shaped ring groove; 1102-a third arc ring groove; 12-a support roll; 1201-a second arc-shaped ring groove; 1202-a fourth arc ring groove; 131-a first shaping port; 132-a second shaping opening; 14-a mounting seat; 1401-a base; 1402-a slider; 1403-a first up-down positioning screw rod; 1404-a spring; 1405-first nut; 1406-thrust ball bearing; 2-a feed guide assembly; 21-a guide wheel; 22-a support plate; 2201-first slot; 23-a wheel axle; 2301-set screws; 3-a discharge guide assembly; 31-a first vertical pressing roller; 32-a second vertical pressing roller; 33-a vertical slide; 3301-guide shaft; 3302-a first cross slide; 3303-a second cross slide; 3304-clamping screw; 3305-baffle plate; 3306-second nut; 34-upright column; 3401-top fixing plate; 35-a second vertical positioning screw rod; 36-a tumbler; 37-a handle; 381-third trim lip; 382-a fourth shaping port; 4-a transmission mechanism; 41-a motor; 42-worm gear reducer; 431-a first sprocket; 432-a second sprocket; 433-a third sprocket; 434-a tension sprocket; 44-a first chain; 45-a second chain; 5-a frame; 98-designing an outer circle of the plastic pipe; 99-plastic round tube.

Detailed Description

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

The utility model discloses a plastic tubing shape correcting unit, as shown in fig. 1 and 2, including repairing shape subassembly 1, as shown in fig. 3 and 5, repair shape subassembly 1 and be equipped with horizontal compression roller 11 and backing roll 12, as shown in fig. 3, horizontal compression roller 11 is formed with the first arc ring groove 1101 that is used for leaning on extruded plastic pipe 99, in other words, the cross-section of first arc ring groove 1101 is the circular arc line form, and first arc ring groove 1101 is around the axis of horizontal compression roller 11 a whole circle in addition, and first arc ring groove 1101 can form through numerical control lathe processing. The support roller 12 is formed with a second arc annular groove 1201 for abutting against the extruded circular plastic pipe 99, the first arc annular groove 1101 and the second arc annular groove 1201 are arranged correspondingly, and when viewed from fig. 3, the first arc annular groove 1101 and the second arc annular groove 1201 enclose a first shaping opening 131 for modifying the outer circular shape of the cross section of the circular plastic pipe 99, as shown in fig. 9, the circular plastic pipe 99 can pass through the first shaping opening 131. As shown in fig. 3, the shape correcting assembly 1 is provided with a mounting seat 14, the two ends of the supporting roller 12 are respectively rotatably connected with the mounting seat 14, specifically, the mounting seat 14 is formed with a chute, the two ends of the supporting roller 12 are respectively provided with a UCT with a sliding block seat outer spherical surface bearing, the UCT with a sliding block seat outer spherical surface bearing which is in mounting connection with the supporting roller 12 is installed in the chute of the mounting seat 14, as shown in fig. 5, the lower end of the UCT with a sliding block seat outer spherical surface bearing which is in mounting connection with the supporting roller 12 is supported by the mounting seat 14, so that the UCT with a sliding block seat outer spherical surface bearing which is provided with the supporting roller 12 is only for conveniently disassembling the supporting roller 12, when the shape correcting device of the utility model normally works, the UCT with a sliding block seat outer spherical surface bearing which is in mounting connection with the supporting roller 12 keeps a static state. As shown in fig. 5, the shape-modifying assembly 1 is provided with a slider 1402, the slider 1402 is slidably connected with the corresponding mounting seat 14, two ends of the transverse pressure roller 11 are respectively rotatably connected with the slider 1402, and the slider 1402 can also adopt a UCT with slider seat outer spherical bearing. The bottom of the mounting seat 14 is fixedly connected with the frame 5 through corresponding bolts. The UCT bearing with the sliding block seat outer spherical surface, which is installed and connected with the transverse pressure roller 11, can move up and down relative to the installation seat 14. The shape modification assembly 1 is provided with a slider force supply mechanism for applying pressure to the plastic circular tube 99, the slider force supply mechanism is connected with the slider 1402, when the transverse press roller 11 is arranged above the support roller 12, that is, the slider force supply mechanism has a basic function of applying downward thrust to the slider 1402, the slider force supply mechanism can adopt a structural form that an air cylinder pushes the slider 1402 downward, the slider force supply mechanism can also adopt an electric push rod in the prior art to drive the slider 1402, or even can press the slider 1402 downward by a hand, and thus, the slider force supply mechanism can adopt a common force supply structure in the prior art to realize the effect of applying pressure to the plastic circular tube 99.

In order to briefly explain the working principle of the shape correcting apparatus of the present invention, as shown in fig. 9, the plastic circular tube 99 extruded from the plastic tube extruding device and not yet cooled and solidified is fed into the first shaping opening 131, in other words, the plastic circular tube 99 passing through the first shaping opening 131 has a certain plasticity, and a downward pushing force is applied to the slider 1402, so that the first arc ring groove 1101 and the second arc ring groove 1201 abut against the plastic circular tube 99, and as seen from fig. 9, the first shaping opening 131 wraps the plastic circular tube 99, as shown in fig. 12, when the cross section of the plastic circular tube 99 is deformed, the portion of the cross section of the plastic circular tube 99 protruding from the plastic tube design outer circle 98 is pressed by the transverse press roller 11 or the support roller 12 to be restored to the position coinciding with the plastic tube design outer circle 98 while passing through the first shaping opening 131, and when the material of the plastic circular tube 99 is pressed, the force transmission through the wall of the plastic round tube 99 causes the part of the plastic round tube 99, which is sunken relative to the plastic tube design excircle 98, to simultaneously bulge outwards and recover to the position coinciding with the plastic tube design excircle 98, and the first shaping opening 131 wraps the plastic round tube 99, so that even if the part of the plastic round tube 99, which is bulged relative to the plastic tube design excircle 98, is not at the position right above or below, the outer circle shape of the plastic round tube 99 can be modified through the squeezing action of the first shaping opening 131 on the plastic round tube 99. The whole plastic round pipe 99 passes through the first shaping port 131, and then the plastic round pipe 99 is naturally cooled and solidified, so that the outer circular shape of the cross section of the plastic round pipe 99 can be corrected, the utility model discloses a plastic pipe shape correcting device is favorable to improving the product quality of the plastic pipe.

Further, as shown in fig. 5, the slider force supplying mechanism includes a first up-down positioning screw 1403, a spring 1404 and a first nut 1405, and a lower end of the first up-down positioning screw 1403 is fixedly connected to the slider 1402. When the slider 1402 employs the UCT with the slider holder outer spherical bearing, the first up-down positioning screw 1403 can only be rotated by a complete circle around the axis of the first up-down positioning screw 1403 relative to the slider 1402, so that the lower end of the first up-down positioning screw 1403 can be screwed with a corresponding nut, the nut is provided with an inner hexagon screw, the inner hexagon screw is screwed to press the lower end of the first up-down positioning screw 1403, so that when the first up-down positioning screw 1403 rotates, the head of the inner hexagon screw is blocked by the slider 1402 employing the UCT with the slider holder outer spherical bearing, the upper portion of the first up-down positioning screw 1403 is adapted to penetrate through the mounting seat 14, the first nut 1405 and the upper portion of the first up-down positioning screw 1403 are sleeved by the spring 1404, and the spring 1404 is screwed between the slider 1402 and the mounting seat 14. With the above arrangement, when the first nut 1405 is screwed clockwise by a wrench, the first up-down positioning screw 1403 is moved upward, the spring 1404 is compressed, that is, in the state shown in fig. 5, the spring 1404 is compressed, and the first up-down positioning screw 1403 and the cross press roll 11 can be stationary in the state shown in fig. 5 due to the limit function of the first nut 1405; when the plastic circular tube 99 is fed into the first shaping opening 131, the plastic circular tube 99 supports the cross press roller 11 to further compress the spring 1404, so that the spring 1404 provides a downward pushing force to the slider 1402, and the cross-sectional outer shape of the plastic circular tube 99 is modified by applying a pressure to the plastic circular tube 99 through the cross press roller 11. The slider force supply mechanism with the structure is simple in structure and low in cost. As shown in fig. 5, a thrust ball bearing 1406 may be further disposed between first nut 1405 and the top of mount 14 to facilitate rotational flexibility of first nut 1405.

Further, as shown in fig. 2 to 4, the roll bending device further includes a transmission mechanism 4, the transmission mechanism 4 is provided with a motor 41, a worm gear reducer 42, a first chain wheel 431, a second chain wheel 432, a third chain wheel 433, a tension chain wheel 434 and a first chain 44, the first chain wheel 431 is coaxially and fixedly connected with the end of the support roll 12, the second chain wheel 432 is coaxially and fixedly connected with the end of the cross press roll 11, the third chain wheel 433 is coaxially and fixedly connected with the output shaft of the worm gear reducer 42, the motor 41 is in driving connection with the worm gear reducer 42, the motor 41 can be installed on the worm gear reducer 42, as shown in fig. 4, the first chain wheel 431, the second chain wheel 432, the third chain wheel 433 and the tension chain wheel 434 are connected through the first chain 44, the second chain wheel 432, the third chain wheel 433 and the tension chain wheel 434 are arranged on the inner side of the first chain 44, the first chain wheel 431 is arranged on the outer side of the first chain 44, through the arrangement structure shown in fig. 4, the rotation directions of the first chain wheel 431 and the second chain wheel 432 are opposite, and the linear velocity direction of the portion of the cross press roller 11 contacting the plastic circular tube 99 is the same as the linear velocity direction of the portion of the support roller 12 contacting the plastic circular tube 99, under the normal operation state of the shape correction device of the present invention, the second chain wheel 432 can float up and down within a certain range due to the characteristics of chain transmission, through the arrangement of the transmission mechanism 4, the cross press roller 11 and the support roller 12 have the power capable of pulling the plastic circular tube 99 to feed, so that after the plastic circular tube 99 is inserted into the first shape correction opening 131 by aligning with the human hand, the cross press roller 11 and the support roller 12 can drive the plastic circular tube 99 to pass through the first shape correction opening 131 uniformly, thereby reducing the labor intensity, being also beneficial to the plastic circular tube 99 to pass through the first shape correction opening 131 quickly, the shape correction effect is ensured.

Further, the number of the shape-modifying assemblies 1 is set to at least two groups, as shown in fig. 1 and 2, the number of the shape-modifying assemblies 1 may be set to five groups, as shown in fig. 2, the adjacent transverse pressing rollers 11 are connected to each other by the corresponding chains 45, that is, the number of the first sprocket 431 and the second sprocket 432 is one each, the rotation direction of each transverse pressing roller 11 is the same, the adjacent supporting rollers 12 are connected to each other by the corresponding chains 45, the rotation direction of each supporting roller 12 is the same, the number of the modification units 1 is set to at least two groups, in the case where the amount of deformation of the circular plastic tube 99 is assumed to be large, when the set of modification units 1 fails to perfectly modify the outer circular shape of the cross-section of the circular plastic tube 99, the subsequent shape modification assembly 1 can also be used for gradually modifying or consolidating the modification effect on the outer circular shape of the cross section of the plastic circular tube 99, so that the improvement on the product quality of the plastic circular tube 99 is further facilitated.

Further, as shown in fig. 3, the transverse pressing roller 11 is formed with a third arc annular groove 1102 for abutting against the circular extruded plastic pipe 99, the supporting roller 12 is formed with a fourth arc annular groove 1202 for abutting against the circular extruded plastic pipe 99, the third arc annular groove 1102 and the fourth arc annular groove 1202 are correspondingly arranged, the third arc annular groove 1102 and the fourth arc annular groove 1202 enclose a second shaping opening 132 for modifying the outer circular shape of the cross section of the circular plastic pipe 99, when the second shaping opening 132 is set to be different in size from the first shaping opening 131, the shape modifying device of the present invention can be adapted to the circular plastic pipes 99 with two different outer diameter specifications, and fig. 9 and 10 respectively show the states that the circular plastic pipes 99 with different specifications pass through the first shaping opening 131 and the second shaping opening 132; it should be noted that the first and second trimming openings 131 and 132 can be used alone, but not simultaneously. In addition, the second trimming opening 132 can also be set to be the same as the first trimming opening 131, and the second trimming opening 132 can be used as a spare.

Further, as shown in fig. 1 and 2, a feeding guide assembly 2 is further included, as shown in fig. 11, the feeding guide assembly 2 is provided with a guide wheel 21, a wheel shaft 23 and a support plate 22 for supporting the plastic circular tube 99, as shown in fig. 2, the support plate 22 is provided with a first long hole 2201, as shown in fig. 11, the lower end portion of the wheel shaft 23 is adapted to pass through the first long hole 2201, the wheel shaft 23 is fixed with the support plate 22 by a screw 2301, a flat washer is further provided between the screw 2301 and the lower end surface of the wheel shaft 23, the guide wheel 21 is coaxially and rotatably connected with the wheel shaft 23 by a deep groove ball bearing, the number of the guide wheels 21 is two, a passage for the plastic circular tube 99 to pass through is formed between the two guide wheels 21, so that after the screw 1 is loosened 230, the wheel shaft 23 can be slidably displaced in the first long hole 2201, after the screw 2301 is tightened again, the wheel shaft 23 can be fixed, and thus the passage for the plastic circular tube 99 to be displaced in the front-back direction, when it is necessary to switch from the first trimming port 131 to the second trimming port 132, the position of the passage formed between the two guide wheels 21 for the plastic round tube 99 to fit through can be adjusted accordingly.

Further, as shown in fig. 1 and fig. 2, the discharging guide assembly 3 is further included, as shown in fig. 6 to fig. 8, the discharging guide assembly 3 includes a first vertical pressing roller 31, a second vertical pressing roller 32, a vertical sliding seat 33, a vertical column 34, a material clamping screw 3304 and a second vertical positioning screw 35, the vertical sliding seat 33 is slidably connected to the vertical column 34, the number of the vertical sliding seats 33 may be two, the number of the vertical sliding seats 34 may be two, the lower end of the vertical column 34 is fixedly connected to the machine frame 5, as shown in fig. 7, the vertical sliding seat 33 is fixedly connected to a guide shaft 3301, the number of the guide shaft 3301 may be four, two guide shafts 3301 are fixedly connected to one vertical sliding seat 33 located at an upper position, the other two guide shafts 3301 are fixedly connected to one vertical sliding seat 33 located at a lower position, the guide shaft 3301 is perpendicular to the vertical column 34, the guide shaft 3301 is slidably connected to a first horizontal sliding seat 3302 and a second horizontal sliding seat 3303, the first vertical pressing roller 31 is rotatably connected to the second horizontal sliding seat 3303 through a corresponding UCP external That is to say, UCP with vertical seat spherical outside surface bearings are respectively installed at the upper and lower ends of the first vertical compression roller 31, the second vertical compression roller 32 is rotatably connected to the first cross sliding seat 3302 through the corresponding UCP with vertical seat spherical outside surface bearings, the upper end fixedly connected with top fixing plate 3401 of the upright column 34, the second up-down positioning screw 35 is rotatably connected with the top fixing plate 3401, the second up-down positioning screw 35 is screwed with the vertical sliding seat 33, one end of the clamping screw 3304 is hinged with the first cross sliding seat 3302, the other end corresponding to the clamping screw 3304 is screwed with the second nut 3306, the second cross sliding seat 3303 is fixedly connected with the baffle 3305, the baffle 3305 is formed with a notch, the clamping screw 3304 passes through the notch, and the baffle 3305 is located between the second nut 3306 and the end of the clamping screw 3304 hinged with the first cross sliding seat 3302. As shown in fig. 8, the first vertical pressing roller 31 and the second vertical pressing roller 32 are surrounded by a third trimming port 381 and a fourth trimming port 382 for correcting the outer circular shape of the cross section of the circular plastic pipe 99, and the principles of the third trimming port 381 and the fourth trimming port 382 are the same as the structural principle of the first trimming port 131. Through the arrangement, when the second vertical position adjusting screw 35 is rotated, the vertical sliding seat 33 can be lifted or lowered, so that the lifting position adjusting function can be realized by the first vertical pressing roller 31 and the second vertical pressing roller 32, and the first transverse sliding seat 3302 and the second transverse sliding seat 3303 are slidably connected with the guide shaft 3301, so that the positions of the first vertical pressing roller 31 and the second vertical pressing roller 32 can be adjusted back and forth, the third shape trimming port 381 can be just opposite to the first shape trimming port 131, and the fourth shape trimming port 382 can be just opposite to the second shape trimming port 132. For example, when the plastic round pipe 99 passes through the third trimming port 381, the distance between the first vertical pressing roller 31 and the second vertical pressing roller 32 can be reduced by rotating the second nut 3306, so that the third trimming port 381 can wrap and extrude the plastic round pipe 99, and by arranging the discharging guide assembly 3, on the basis that the trimming assembly 1 is arranged to apply pressure to the plastic round pipe 99 in the vertical direction, the plastic round pipe 99 is applied pressure in the front-back direction, and the effect of correcting the outer circular shape of the cross section of the plastic round pipe 99 is further ensured. When it is desired to quickly separate the first vertical pressing roller 31 from the second vertical pressing roller 32, the clamping screw 3304 may be swung up by hand to disengage from the notch formed in the stop 3305, as shown in fig. 7.

Further, as shown in fig. 6, a rotating arm 36 is fixedly connected to an upper end of the second vertical positioning screw 35, the rotating arm 36 is perpendicular to the second vertical positioning screw 35, and a handle 37 is fixedly connected to an end of the rotating arm 36, so that the second vertical positioning screw 35 can be rotated by rotating the handle 37 by hand.

Further, the transverse pressing roller 11, the supporting roller 12, the first vertical pressing roller 31, and the second vertical pressing roller 32 are all rubber rollers, and more specifically, according to the existing rubber roller manufacturing process, the materials of the central shafts of the transverse pressing roller 11, the supporting roller 12, the first vertical pressing roller 31, and the second vertical pressing roller 32 may all be steel, and the materials of the portions for forming the first arc-shaped groove 1101, the second arc-shaped groove 1201, the third arc-shaped groove 1102, and the fourth arc-shaped groove 1202 may be rubber, and the rubber hardness may be set to shore a75 degree to 90 degrees.

Claims (9)

1. A plastic tube shape correction device characterized by: including repairing shape subassembly (1), it is equipped with horizontal compression roller (11) and backing roll (12) to repair shape subassembly (1), horizontal compression roller (11) are formed with and are used for leaning on first arc annular (1101) of extruded plastics pipe (99), backing roll (12) are formed with and are used for leaning on second arc annular (1201) of extruded plastics pipe (99), first arc annular (1101) with second arc annular (1201) correspond the setting, first arc annular (1101) with second arc annular (1201) enclose into and are used for revising first shape mouth (131) of the outer disc of cross-section of plastics pipe (99), it is equipped with mount pad (14) to repair shape subassembly (1), the both ends of backing roll (12) respectively with mount pad (14) rotate and are connected, it is equipped with slider (1402) to repair shape subassembly (1), slider (1402) with correspond mount pad (14) sliding connection, the two ends of the transverse pressing roller (11) are respectively connected with the sliding block (1402) in a rotating mode, the shape modification assembly (1) is provided with a sliding block force supply mechanism used for applying pressure to the plastic circular tube (99), and the sliding block force supply mechanism is connected with the sliding block (1402).

2. A plastic tube shape correcting apparatus according to claim 1, wherein: the slider power supply mechanism includes first vertical position adjusting screw (1403), spring (1404) and first nut (1405), the lower extreme of first vertical position adjusting screw (1403) with slider (1402) fixed connection, the upper portion adaptation of first vertical position adjusting screw (1403) passes mount pad (14), first nut (1405) with the upper portion spiro union of first vertical position adjusting screw (1403), spring (1404) cover is established on first vertical position adjusting screw (1403), spring (1404) set up slider (1402) with between mount pad (14).

3. A plastic tube shape correcting apparatus according to claim 1, wherein: the transverse pressing roller press further comprises a transmission mechanism (4), the transmission mechanism (4) is provided with a motor (41), a worm gear reducer (42), a first chain wheel (431), a second chain wheel (432), a third chain wheel (433), a tensioning chain wheel (434) and a first chain (44), the first chain wheel (431) is coaxially and fixedly connected with the end portion of the supporting roller (12), the second chain wheel (432) is coaxially and fixedly connected with the end portion of the transverse pressing roller (11), the third chain wheel (433) is coaxially and fixedly connected with an output shaft of the worm gear reducer (42), the motor (41) is in driving connection with the worm gear reducer (42), the first chain wheel (431), the second chain wheel (432), the third chain wheel (433) and the tensioning chain wheel (434) are connected through the first chain (44), and the second chain wheel (432) is connected with the tensioning chain wheel (434), The third sprocket (433) and the tension sprocket (434) are provided on the inner side of the first chain (44), and the first sprocket (431) is provided on the outer side of the first chain (44).

4. A plastic tube shape correcting apparatus according to claim 3, wherein: the number of the shape modification assemblies (1) is set to be at least two groups, the adjacent transverse pressing rollers (11) are connected with each other through corresponding chains (45), and the adjacent supporting rollers (12) are connected with each other through corresponding chains (45).

5. A plastic tube shape correcting apparatus according to claim 1, wherein: horizontal compression roller (11) are formed with third arc annular groove (1102) that is used for leaning on extruded plastic pipe (99), backing roll (12) are formed with fourth arc annular groove (1202) that is used for leaning on extruded plastic pipe (99), third arc annular groove (1102) with fourth arc annular groove (1202) correspond the setting, third arc annular groove (1102) with fourth arc annular groove (1202) enclose into the second that is used for revising the cross-section outer circular shape of plastic pipe (99) and repair shape mouth (132).

6. A plastic tube shape correcting apparatus according to claim 5, wherein: the plastic circular tube feeding device is characterized by further comprising a feeding guide assembly (2), wherein the feeding guide assembly (2) is provided with a guide wheel (21), a wheel shaft (23) and a supporting plate (22) used for supporting a plastic circular tube (99), a first long hole (2201) is formed in the supporting plate (22), the lower end portion of the wheel shaft (23) is matched and penetrates through the first long hole (2201), the wheel shaft (23) and the supporting plate (22) are fixed through a screw (2301), the guide wheel (21) is coaxially connected with the wheel shaft (23) in a rotating mode, the number of the guide wheels (21) is two, and a channel used for enabling the plastic circular tube (99) to be matched and penetrate through is formed between the two guide wheels (21).

7. A plastic tube shape correcting apparatus according to claim 5, wherein: still include ejection of compact guide assembly (3), ejection of compact guide assembly (3) includes that first perpendicular compression roller (31), second erect compression roller (32), erect slide (33), stand (34), press from both sides material screw rod (3304) and second vertical position adjusting screw rod (35), erect slide (33) with stand (34) sliding connection, erect slide (33) fixedly connected with guiding axle (3301), guiding axle (3301) perpendicular to stand (34), guiding axle (3301) sliding connection has first horizontal slide (3302) and second horizontal slide (3303), first perpendicular compression roller (31) rotate to be connected on second horizontal slide (3303), second vertical compression roller (32) rotate to be connected on first horizontal slide (3302), the upper end fixedly connected with top fixed plate (3401) of stand (34), second vertical position adjusting screw rod (35) with top fixed plate (3401) rotates to be connected, the second vertical position adjusting screw (35) is in threaded connection with the vertical sliding seat (33), one end of the material clamping screw (3304) is hinged to the first horizontal sliding seat (3302), the other end corresponding to the material clamping screw (3304) is in threaded connection with a second nut (3306), the second horizontal sliding seat (3303) is fixedly connected with a baffle (3305), the baffle (3305) is provided with a notch, the material clamping screw (3304) penetrates through the notch, the baffle (3305) is located between the second nut (3306) and the material clamping screw (3304) and the first horizontal sliding seat (3302) hinged end, the first vertical pressing roller (31) and the second vertical pressing roller (32) are surrounded by a third trimming port (381) and a fourth trimming port (382) which are used for correcting the section outer circular shape of the plastic circular tube (99), and the third trimming port (381) can be just opposite to the first trimming port (131), the fourth trimming port (382) can be directly opposite to the second trimming port (132).

8. A plastic tube shape correcting apparatus according to claim 7, wherein: the upper end of the second vertical positioning screw rod (35) is fixedly connected with a rotating arm (36), the rotating arm (36) is perpendicular to the second vertical positioning screw rod (35), and the end part of the rotating arm (36) is fixedly connected with a handle (37).

9. A plastic tube shape correcting apparatus according to claim 7, wherein: the transverse pressing roller (11), the supporting roller (12), the first vertical pressing roller (31) and the second vertical pressing roller (32) are all rubber rollers.

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