CN109968442B

CN109968442B - PE pipe processingequipment

Info

Publication number: CN109968442B
Application number: CN201910349354.XA
Authority: CN
Inventors: 李程伟
Original assignee: Anhui Lantong Technology Co Ltd
Current assignee: Anhui Lantong Technology Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-06-30
Anticipated expiration: 2039-04-28
Also published as: CN111531623A; CN109968442A; CN111469201A

Abstract

The invention belongs to the technical field of PE pipes, and particularly relates to a PE pipe processing device which comprises an upper clamping mechanism, an adjusting driving mechanism, a guide support, a lower clamping plate and a bottom plate, wherein the guide support, the adjusting driving mechanism, the upper clamping mechanism and the lower clamping plate are fixed on the bottom plate by the fixing device, so that the fixing device can be freely moved in the using process and is more convenient to use; on the other hand, the distance between the upper clamping plate and the lower clamping plate is determined by controlling the adjusting driving mechanism and the guiding support through measuring the PE pipes, so that the PE pipes with different diameters are adapted, and the fixing mechanism is ensured to be suitable for the PE pipes with different diameters; simultaneously through the deformation clamping PE pipe of first elastic rubber board and second elastic rubber board, guarantee to press from both sides tightly through the face contact between PE pipe and last clamp plate and the lower clamp plate, it is more stable.

Description

PE pipe processingequipment

Technical Field

The invention belongs to the technical field of PE pipes, and particularly relates to a PE pipe processing device.

Background

PE is polyethylene plastic, the most basic plastic, plastic bags, preservative films and the like are PE, and the PE has the excellent characteristic of resisting most of domestic and industrial chemicals; in the production of PE pipe, often need cut into different length with the PE pipe and adapt to different demands, need fix PE pipe clamp fastening in cutting process to convenient cutting, and present PE pipeline fixing device is fixed bore mostly, can't come the tight pipeline of tight different bores of clamp through a fixing device, has reduced workman's work efficiency.

The invention designs a PE pipe processing device to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a PE pipe processing device which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "below", "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention usually place when using, and are only used for convenience of description and simplification of description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

The utility model provides a PE pipe processingequipment which characterized in that: the device comprises an upper clamping mechanism, an adjusting driving mechanism, a guide support, support plates, a lower clamping plate and a bottom plate, wherein the guide support which plays a role in supporting and guiding a PE pipe in the pushing process is arranged on the upper side of the bottom plate through two symmetrically distributed support plates, a V-shaped groove is formed in the upper side surface of the guide support, and two side surfaces of the V-shaped groove and the horizontal plane form an included angle of 45 degrees; the adjusting driving mechanism is arranged on the upper side of the bottom plate, the upper clamping mechanism and the lower clamping machine plate are positioned on the upper side of the bottom plate, and the adjusting driving mechanism controls the upper clamping mechanism and the lower clamping plate to move up and down.

The upper clamping mechanism comprises a driving block, a rack rod, an upper clamping plate, a second elastic rubber plate, a clamping mechanism and a fourth gear, wherein the driving block is provided with a cylindrical groove which is communicated up and down; the driving block is controlled to move up and down by adjusting the driving mechanism; the fourth gear is arranged on the gear shaft; the rack rod is cylindrical, and the teeth on the rack rod are annular teeth; the annular teeth can ensure that the sixth gear arranged on the upper clamping plate can be continuously meshed with the rack bar when the upper clamping plate rotates relative to the rack bar, and interference cannot occur; the rack rod is arranged on the driving block through a cylindrical groove on the driving block and is meshed with the fourth gear; one end of the upper clamping plate is provided with a pin hole, and the upper clamping plate is arranged on the driving block through the pin hole and the rotary fit of the rack rod; a second elastic rubber plate is arranged on the lower end face of the upper clamping plate; the second elastic rubber plate is used for increasing the friction of the upper clamping plate on the PE pipe, and the upper clamping plate is more stably fixed on the PE pipe through the deformation of the second elastic rubber plate; the clamping mechanism is arranged on the upper clamping plate and matched with the rack rod.

The clamping mechanism comprises a return spring, a first sliding block, a second sliding block, clamping plates, a mounting square plate, a third elastic rubber plate and guide blocks, wherein the first sliding block and the second sliding block are identical in structure, two sliding grooves penetrating through the side face of the second sliding block are symmetrically formed in two ends of the second sliding block, two guide grooves are symmetrically formed in two sides of each sliding groove, and the guide grooves are used for ensuring that the clamping plates mounted on the first sliding block and the second sliding block can always keep vertical downward movement and cannot swing through the matching of the guide blocks and the guide grooves; the clamping plates arranged on the first sliding block and the second sliding block are provided with third elastic rubber plates, the third elastic rubber plates are elastic, in an initial state, the third elastic rubber plates on the two clamping plates positioned on the same side on the first sliding block and the second sliding block are in close contact, if the clamping plates are not guided by the guide blocks and the guide grooves, the third elastic rubber plates on the two clamping plates can be extruded when the two clamping plates are extruded by external force, so that a gap is formed between one side of the clamping plates, which is not provided with the third elastic rubber, and the sliding grooves, the clamping plates can incline under the external force, if the external force does not disappear, and workers can not find the clamping plates in time, the clamping plates can not move vertically downwards in the downward moving process, namely the two clamping plates can not keep a parallel state, and the distance between the two clamping plates can also change, so that the clamping of the clamping plates on the PE pipe can be influenced, in the process that the two clamping plates move downwards, after the clamping plates are connected with the PE pipe, the clamping plates begin to clamp the PE pipe, in the process, the PE pipe can apply a reaction force to one end, contacted with the clamping plates, of the clamping plates, if the other end of the clamping plates is not fixed, under the reaction force, the third elastic rubber plates on the parts, matched with the sliding grooves in the first sliding block and the second sliding block, of the clamping plates can be compressed, the clamping plates swing, and the clamping of the clamping plates on the PE pipe can be weakened; the first sliding block and the second sliding block are arranged on the upper clamping plate in a sliding fit manner, and sliding grooves formed in the first sliding block and the second sliding block are opposite; the first sliding block and the second sliding block move back to back under the control of the movement of the rack rod.

The structures installed on the first sliding block and the second sliding block are completely the same, for the first sliding block, two guide blocks are symmetrically installed on two sides of the clamping plate, two clamping plates are symmetrically installed on the lower side of the installation square plate, the installation square plate is installed on the first sliding block through the sliding fit of the two clamping plates and the sliding grooves formed in the first sliding block, and the two guide blocks on the clamping plates are in sliding fit with the two guide grooves in the corresponding one of the two sliding grooves formed in the first sliding block; two return springs which cannot be bent are arranged between the mounting square plate and the first sliding block; the reset spring is used for resetting the two corresponding clamping plates; a third elastic rubber plate is respectively arranged on the two clamping plates; the effect of third elastic rubber board is when two cardboard cards press from both sides tight to the PE pipe on the PE pipe, can increase the friction of cardboard and PE pipe through the third rubber board, prevents that the cardboard from going on pressing from both sides tight in-process rebound at the cardboard to the PE pipe under the effect that corresponds reset spring, influences the clamp of cardboard to the PE pipe.

The third elastic rubber plates in the first sliding block and the second sliding block are tightly attached in an initial state; after the first sliding block and the second sliding block move, the distance between the two corresponding clamping plates on the first sliding block and the second sliding block is kept consistent with the diameter of the PE pipe.

The adjusting and driving mechanism comprises a first gear, a first rack, a second gear, a third gear, a second rack, a first supporting shaft, a driving handle, a first shaft sleeve, a fixing block, a fixing rack, an installation shell, a first connecting block, a second supporting shaft, a second shaft sleeve and a second connecting block, wherein a shaft hole is formed in one side of the installation shell, a second guiding square hole and a first guiding square hole are formed in the other side of the installation shell, and the second guiding square hole is used for guiding the first connecting block connected between the first rack and the lower clamping plate, namely guiding the first rack and the lower clamping plate; the first guide square hole is used for guiding the second rack and the driving block, namely guiding the upper clamping mechanism; the upper side of the mounting shell is provided with a second rack port and a first rack port, and the second rack port is used for providing an outlet for the second rack so as to prevent the second rack from interfering with the mounting shell; the first rack opening is used for providing an outlet for the first rack and preventing the first rack from interfering with the mounting shell; the second rack port is communicated with the first guide square hole, and the mounting shell is mounted on the upper side of the bottom plate; the first supporting shaft is installed in the installation shell through two second shaft sleeves, one end of the first supporting shaft penetrates through a shaft hole formed in the installation shell and is located on the outer side of the installation shell, and the driving handle is installed at one end, located on the outer side of the installation shell, of the first supporting shaft; the second gear is arranged on the first supporting shaft; the second rack is arranged in the mounting shell and is matched with a second rack opening formed in the mounting shell; the second rack is connected with the driving block through a second connecting block, and the driving block is matched with a first guide square hole formed in the mounting shell; the second rack is meshed with the second gear; the second support shaft is arranged in the mounting shell through two first shaft sleeves, the third gear is arranged at one end of the second support shaft, and the third gear is meshed with the second rack; the first gear is arranged at the other end of the second supporting shaft, the first rack is arranged in the mounting shell, the first rack is connected with the lower clamping plate through a first connecting block, and the first rack is meshed with the first gear; the diameter ratio of the third gear to the first gear is 2.414 which is 0.414 min; the driving handle is driven to rotate around the first supporting shaft manually, the driving handle drives the second gear to rotate through the first supporting shaft, the second gear rotates to drive the second rack to move upwards, and the second rack moves upwards to drive the driving block to move upwards; meanwhile, the second rack moves upwards to drive a third gear meshed with the second rack to rotate, the third gear rotates to drive a second support shaft provided with the third gear to rotate, the second support shaft rotates to drive a first gear arranged on the second support shaft to rotate, and the first gear rotates to drive a first rack meshed with the first gear to move upwards; the first rack moves upwards to drive the lower clamping plate to move upwards; the diameter ratio of the third gear to the first gear is 2.414: 0.414, which ensures that the interval between the upper clamping plate and the lower clamping plate can clamp the PE pipe into the upper clamping plate and the lower clamping plate after the upper clamping plate and the lower clamping plate move upwards according to the PE pipe; because the upper side surface of the guide support is provided with the V-shaped groove, the two side surfaces of the V-shaped groove and the horizontal plane form an included angle of 45 degrees; the lower side surface of the upper clamping plate and the upper side surface of the lower clamping plate are on the same horizontal plane, and the lower side surfaces of the upper clamping plate and the lower clamping plate are on the same horizontal plane with the lowest end point of the V-shaped groove on the guide support; setting the radius of the PE pipe to be R, and according to the triangular pythagorean theorem, after the PE pipe is placed in the V-shaped groove on the guide support, the distance between the center of the PE pipe and the endpoint of the lowest side of the V-shaped groove on the guide support is about 1.414R, namely the distance between the highest point of the PE pipe and the endpoint of the lowest side of the V-shaped groove on the guide support is about 2.414R, and the distance between the lowest point of the PE pipe and the endpoint of the lowest side of the V-shaped groove on the guide support is about 0.414R; the second rack drives the upper clamping plate to move upwards through the driving block, the first rack drives the lower clamping plate to move upwards, when the lower clamping plate moves upwards to be in contact with the lowest point of the PE pipe, the upward movement distance of the upper side of the lower clamping plate is about 0.414R, the lower side of the upper clamping plate can be guaranteed to be on the same horizontal plane with the highest point of the PE pipe only by moving upwards 2.414R, the upper clamping plate can rotate to clamp the PE pipe, and therefore the upward movement distance of the second rack is 2.414 times of the upward movement distance of the first rack, and the diameter ratio of the diameter of the third gear to the diameter of the first gear is 2.414 of 0.414.

The fixed rack is arranged on one side of the mounting shell back to the driving handle through two fixed blocks and is meshed with the fourth gear; when the driving block moves upwards under the driving of the second rack, the driving block can drive the fourth gear installed on the driving block to move upwards, the fourth gear moves upwards to change the displacement with the fixed rack meshed with the fourth gear, the fourth gear rotates under the driving of the fixed rack, the fourth gear rotates to drive the rack rod meshed with the fourth gear to move upwards, and the rack rod moves upwards to drive the sixth gear meshed with the rack rod to rotate.

In an initial state, the lower side surface of the upper clamping plate and the upper side surface of the lower clamping plate are on the same horizontal plane, and the lower side surfaces of the upper clamping plate and the lower clamping plate are on the same horizontal plane with the lowest end point of the V-shaped groove on the guide support; an included angle of 90 degrees is formed between the upper clamping plate and the lower clamping plate, and the lower clamping plate is vertical to the guide direction of the guide support; the upward movement distance of the upper clamping plate and the lower clamping plate is kept the same as the diameter of the PE pipe.

As a further improvement of the technology, the inner side of the upper clamping plate is provided with a square mounting groove communicated with the pin hole, the upper side surface of the square mounting groove, which is far away from one end of the pin hole, is provided with a through first square chute, the upper side surface of the square mounting groove, which is near to one end of the pin hole, is provided with a first trapezoid guide groove, the first trapezoid guide groove is communicated with the first square chute, the lower side surface of the square mounting groove, which is near to one end of the pin hole, is provided with a through second square chute, the lower side surface of the square mounting groove, which is far away from one end of the pin hole, is provided with a second trapezoid guide; the first trapezoidal guide groove plays a role in supporting and guiding the first driving rack; the second trapezoidal guide groove plays a role in supporting and guiding the second driving rack; two ends of the first rotating shaft are fixedly arranged in square mounting grooves formed in the upper clamping plate, the sixth gear is arranged on the first rotating shaft, and the sixth gear is meshed with the rack rod; two ends of a second rotating shaft are fixedly arranged in a square mounting groove formed in the upper clamping plate, a fifth gear is arranged on the second rotating shaft, and the fifth gear is connected with a sixth gear through a synchronous belt; the upper side of the first driving rack is provided with a trapezoidal guide block, the first driving rack is arranged in the upper clamping plate through the sliding fit of the trapezoidal guide block and a first trapezoidal guide groove formed in the upper clamping plate, and the first driving rack is connected with the second sliding block; the first driving rack is positioned on the upper side of the fifth gear and meshed with the fifth gear; the part where the first driving rack and the second sliding block are connected is matched with a first square sliding groove formed in the upper clamping plate; the lower side of the second driving rack is provided with a trapezoidal guide block, the second driving rack is arranged in the upper clamping plate through the sliding fit of the trapezoidal guide block and a second trapezoidal guide groove formed in the upper clamping plate, and the second driving rack is connected with the first sliding block; the second driving rack is positioned on the lower side of the fifth gear and meshed with the fifth gear; the part of the second driving rack connected with the first sliding block is matched with a second square sliding groove formed in the upper clamping plate; when the sixth gear rotates, the sixth gear drives the fifth gear to rotate through the synchronous belt, the fifth gear drives the first driving rack and the second driving rack to move towards opposite directions, and the first driving rack and the second driving rack move to drive the second sliding block and the first sliding block to move towards opposite directions; the first sliding block and the second sliding block move to drive the clamping plates mounted on the first sliding block to move towards opposite directions; the transmission ratio of the sixth gear and the fifth gear is set, so that the relative movement distance of the first sliding block and the second sliding block is consistent with the diameter of the PE pipe.

As a further improvement of the present technology, the fifth gear and the sixth gear each have a stopper ring for preventing the timing belt from sliding in the axial direction of the fifth gear and the sixth gear.

As a further improvement of the technology, a five-stage telescopic rod is arranged between the mounting square plate and the first sliding block; the telescopic rods are nested in the middle of the corresponding return springs; the effect of telescopic link prevents that reset spring from bending, influences reset of reset spring to the cardboard.

As a further improvement of the technology, four cutting plates which are distributed in a square shape are installed on the outer side of the return spring, one end of each cutting plate is installed on the first sliding block and the second sliding block, and the other end of each cutting plate penetrates through the installation square plate and is located on the upper side of the installation square plate; the effect of cutting the board is that prevent reset spring from bending, influences reset of reset spring to the cardboard.

As a further improvement of the technology, the above alternative solution as the synchronous belt is that the fifth gear and the sixth gear are both provided with chain teeth, and the fifth gear and the sixth gear are connected through a chain.

As a further improvement of the present technology, the upper side of the lower clamping plate has a first elastic rubber plate; the friction of clamping plate and PE pipe under the increaseing presss from both sides tightly the PE pipe through the deformation of first elastic rubber board for the clamping plate is more stable to the clamp of PE pipe down.

As a further improvement of the technology, one side of the lower end surface of the upper clamping plate is provided with an inclined surface, and the second elastic rubber plate is matched with the inclined surface; the function of the inclined plane is to ensure that the upper clamping plate can smoothly move to the upper side of the PE pipe.

As a further improvement of the technology, the bottom plate is provided with a guide plate, the guide plate is uniformly provided with three guide holes, the lower side of the lower clamping plate is uniformly provided with three guide rods, and the lower clamping plate is positioned on the upper side of the guide plate through the matching of the three guide rods and the three guide holes; the guide rod is used for guiding the lower clamping plate.

As a further improvement of the present technology, the first slider and the second slider are mounted on the upper clamping plate through linear bearings.

According to the fixing device, the upper clamping plate moves upwards to reversely drive the lower clamping plate to move upwards, namely, the distance between the upper clamping plate and the lower clamping plate is kept unchanged after the PE pipe is clamped, and any one of the upper clamping plate and the lower clamping plate cannot independently move, so that the fixing device has a self-locking function.

Compared with the traditional PE pipe technology, the fixing device designed by the invention has the advantages that on one hand, the guide support, the adjusting driving mechanism, the upper clamping mechanism and the lower clamping plate are all fixed on the bottom plate, so that the fixing device can be freely moved in the using process and is more convenient to use; on the other hand, the distance between the upper clamping plate and the lower clamping plate is determined by controlling the adjusting driving mechanism and the guiding support through measuring the PE pipes, so that the PE pipes with different diameters are adapted, and the fixing mechanism is ensured to be suitable for the PE pipes with different diameters; meanwhile, the PE pipe is clamped through the deformation of the first elastic rubber plate and the second elastic rubber plate, so that the PE pipe is ensured to be clamped with the upper clamping plate and the lower clamping plate through surface contact, and the PE pipe is more stable; in addition, the two clamping plates are designed, and the distance between the two clamping plates is controlled by adjusting the driving mechanism, so that the two clamping plates can clamp and fix the two sides of the PE pipe, and the stable shape of the PE pipe in the processing process is ensured.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

Fig. 3 is a schematic view of a guide support structure.

Fig. 4 is a schematic view of the upper clamping mechanism and the lower clamping plate arrangement.

Fig. 5 is a schematic view of the first and second gear arrangements.

Fig. 6 is a second gear mounting schematic.

Fig. 7 is a schematic view of the structure of the mounting case.

Fig. 8 is a schematic view of the lower clamping plate installation.

Fig. 9 is a schematic view of the engagement of the second rack with the second gear.

Fig. 10 is a schematic view of the engagement of the first rack with the first gear.

Fig. 11 is a schematic view of the upper clamping plate installation.

Fig. 12 is a fourth gear mounting schematic.

Fig. 13 is a schematic view of the drive block structure.

Fig. 14 is a schematic view of the engagement of the fourth gear with the fixed rack.

FIG. 15 is a sixth gear and fifth gear arrangement.

Fig. 16 is a schematic view of the first and second sliders being arranged.

Figure 17 is a schematic view of the first drive rack mounting.

Figure 18 is a second drive rack mounting schematic.

FIG. 19 is a schematic diagram of the upper clamp plate configuration.

Figure 20 is a timing belt installation schematic.

Figure 21 is a card mounting schematic.

Fig. 22 is a schematic view of a return spring installation.

FIG. 23 is a second slider configuration.

FIG. 24 is a schematic view of the guide bar and guide plate mating.

Fig. 25 is a schematic view of guide bar installation.

Fig. 26 is a schematic diagram of a guide plate structure.

Number designation in the figures: 1. an upper clamping mechanism; 2. adjusting the driving mechanism; 3. a guide support; 4. a support plate; 6. a base plate; 7. a guide plate; 8. a lower clamping plate; 9. a first gear; 10. a first rack; 11. a second gear; 13. a third gear; 14. a second rack; 15. a first support shaft; 16. a drive handle; 17. a first bushing; 18. a fixed block; 19. fixing a rack; 20. mounting a shell; 21. a shaft hole; 22. a second rack port; 23. a first rack port; 24. a first guiding square hole; 25. a second guiding square hole; 26. a first elastic rubber sheet; 27. a first connection block; 29. a fourth gear; 30. a drive block; 31. a second support shaft; 32. a second shaft sleeve; 33. a second connecting block; 35. a rack bar; 36. an upper clamping plate; 37. a second elastic rubber sheet; 38. a locking mechanism; 39. a gear shaft; 40. mounting grooves; 41. a square notch; 42. a cylindrical groove; 45. a fifth gear; 46. a sixth gear; 47. a first drive rack; 48. a second drive rack; 49. a telescopic rod; 50. a return spring; 51. a first slider; 52. a second slider; 53. a bevel; 54. a pin hole; 55. a first trapezoidal guide groove; 56. a first square chute; 57. a square mounting groove; 58. a second square chute; 59. a second trapezoidal guide groove; 60. a synchronous belt; 61. a limiting ring; 62. a first rotating shaft; 63. a second rotating shaft; 64. clamping a plate; 65. installing a square plate; 66. a third elastic rubber sheet; 67. a guide block; 68. a trapezoidal guide block; 69. a guide groove; 70. a sliding groove; 71. a guide bar; 72. and (4) a guide hole.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 and 2, the device comprises an upper clamping mechanism 1, an adjusting driving mechanism 2, a guide support 3, a support plate 4, a lower clamping plate 8 and a bottom plate 6, wherein as shown in fig. 1 and 3, the guide support 3 which plays a role in supporting and guiding a PE pipe in a pushing process is arranged on the upper side of the bottom plate 6 through the two symmetrically distributed support plates 4, a V-shaped groove is formed on the upper side surface of the guide support 3, and both side surfaces of the V-shaped groove form an included angle of 45 degrees with the horizontal plane; as shown in fig. 1, the adjustment driving mechanism 2 is installed on the upper side of the base plate 6, the upper clamping mechanism 1 and the lower clamping plate are located on the upper side of the base plate 6, and the adjustment driving mechanism 2 controls the up-and-down movement of the upper clamping mechanism 1 and the lower clamping plate 8.

As shown in fig. 11, the upper clamping mechanism 1 includes a driving block 30, a rack bar 35, an upper clamping plate 36, a second elastic rubber plate 37, a locking mechanism 38, and a fourth gear 29, wherein as shown in fig. 13, the driving block 30 is provided with a vertically through cylindrical groove 42, one side of the driving block 30 is provided with an installation groove 40 communicated with the cylindrical groove 42, a gear shaft 39 is installed in the installation groove 40, and the upper end of the driving block 30 is provided with a square notch 41; the driving block 30 is controlled to move up and down by adjusting the driving mechanism 2; as shown in fig. 12, the fourth gear 29 is mounted on the gear shaft 39; as shown in fig. 12 and 14, the rack bar 35 has a cylindrical shape, and the teeth on the rack bar 35 are annular teeth; the annular teeth can ensure that the sixth gear 46 arranged on the upper clamping plate 36 can be continuously meshed with the rack bar 35 without interference when the upper clamping plate 36 rotates relative to the rack bar 35; the rack bar 35 is mounted on the drive block 30 through the cylindrical groove 42 on the drive block 30, as shown in fig. 14, and the rack bar 35 is engaged with the fourth gear 29; as shown in fig. 19, one end of the upper clamping plate 36 has a pin hole 54, and as shown in fig. 15 and 16, the upper clamping plate 36 is mounted on the driving block 30 through the pin hole 54 and the rotational engagement of the rack bar 35; as shown in fig. 11, a second elastic rubber plate 37 is mounted on the lower end surface of the upper clamp plate 36; the second elastic rubber plate 37 is used for increasing the friction of the upper clamping plate 36 on the PE pipe, and the upper clamping plate 36 is more stably fixed on the PE pipe through the deformation of the second elastic rubber plate 37; as shown in fig. 11, a locking mechanism 38 is mounted on the upper clamp plate 36, and the locking mechanism 38 is engaged with the rack bar 35.

As shown in fig. 16 and 21, the locking mechanism 38 includes a return spring 50, a first slider 51, a second slider 52, a locking plate 64, a mounting square plate 65, a third elastic rubber plate 66, and a guide block 67, wherein the first slider 51 and the second slider 52 have the same structure, and for the second slider 52, as shown in fig. 23, two sliding grooves 70 extending out of the side surface of the second slider 52 are symmetrically formed at two ends of the second slider 52, two guide grooves 69 are symmetrically formed at two sides of each sliding groove 70, and the guide grooves 69 ensure that the locking plate 64 mounted on the first slider 51 and the second slider 52 can always keep moving vertically and downwards without swinging through the cooperation of the guide block 67 and the guide grooves 69; the third elastic rubber plate 66 is installed on the clamping plates 64 installed on the first sliding block 51 and the second sliding block 52, and because the third elastic rubber plate 66 has elasticity, in an initial state, the third elastic rubber plates 66 on the two clamping plates 64 on the same side on the first sliding block 51 and the second sliding block 52 are in close contact with each other, if the clamping plates 64 are not guided by the guide blocks 67 and the guide grooves 69, when the two clamping plates 64 are pressed by an external force, the third elastic rubber plates 66 on the two clamping plates 64 are pressed, so that a gap is formed between the side of the clamping plates 64 without the third elastic rubber and the sliding groove 70, the clamping plates 64 may tilt under the external force, if the external force does not disappear, and a worker cannot timely find that the vertical downward movement cannot be maintained in the downward movement process of the clamping plates 64, that is, that the two clamping plates 64 cannot be maintained in a parallel state, and the distance between the two will change, so will influence the clamping of the chuck plate 64 to the PE pipe, and when two chuck plates 64 move downwards, after the chuck plate 64 contacts with the PE pipe, the chuck plate 64 will begin to clamp the PE pipe, in this process the PE pipe will apply a reaction force to the end of the chuck plate 64 contacting with it, if the other end of the chuck plate 64 is not fixed, under this reaction force, the third elastic rubber plate 66 on the chuck plate 64, which is in the position where it cooperates with the sliding grooves 70 on the first slider 51 and the second slider 52, will be compressed, the chuck plate 64 will swing, the clamping of the chuck plate 64 to the PE pipe will be weakened; the first slider 51 and the second slider 52 are mounted on the upper clamping plate 36 by sliding fit, and the sliding grooves 70 formed on the first slider 51 and the second slider 52 are opposite; the first slider 51 and the second slider 52 are controlled to move away from each other by the movement of the rack bar 35.

The first slider 51 and the second slider 52 are mounted in the same structure, for the first slider 51, as shown in fig. 22, two guide blocks 67 are symmetrically mounted on two sides of the catch plate 64, as shown in fig. 21 and 22, two catch plates 64 are symmetrically mounted on the lower side of the mounting square plate 65, as shown in fig. 21, the mounting square plate 65 is mounted on the first slider 51 by the sliding fit of the two catch plates 64 and the sliding grooves 70 formed on the first slider 51, and the two guide blocks 67 on the catch plate 64 are in sliding fit with the two guide grooves 69 in the corresponding one of the two sliding grooves 70 formed on the first slider 51; two return springs 50 which cannot be bent are arranged between the mounting square plate 65 and the first sliding block 51; the return spring 50 is used for returning the two corresponding catch plates 64; as shown in fig. 22, a third elastic rubber plate 66 is mounted on each of the two catch plates 64; the effect of third elastic rubber plate 66 is when two cardboard 64 cards press from both sides tight to the PE pipe on the PE pipe, can increase the friction of cardboard 64 and PE pipe through the third rubber plate, prevents that cardboard 64 from going on pressing from both sides tight in-process rebound at cardboard 64 to the PE pipe under the effect that corresponds reset spring 50, influences the clamp of cardboard 64 to the PE pipe.

The third elastic rubber plate 66 in the first slider 51 and the second slider 52 is closely attached in the initial state; the distance between the two corresponding clamping plates 64 on the first sliding block 51 and the second sliding block 52 is ensured to be consistent with the diameter of the PE pipe after the first sliding block 51 and the second sliding block 52 are moved.

As shown in fig. 8, the adjusting and driving mechanism 2 includes a first gear 9, a first rack 10, a second gear 11, a third gear 13, a second rack 14, a first supporting shaft 15, a driving handle 16, a first sleeve 17, a fixing block 18, a fixing rack 19, a mounting shell 20, a first connecting block 27, a second supporting shaft 31, a second sleeve 32, and a second connecting block 33, wherein as shown in fig. 7, a shaft hole 21 is formed on one side of the mounting shell 20, a second guiding square hole 25 and a first guiding square hole 24 are formed on the other side of the mounting shell 20, and the second guiding square hole 25 is used for guiding the first connecting block 27 connected between the first rack 10 and the lower clamping plate 8, that is, guiding the first rack 10 and the lower clamping plate 8; the first square guide hole 24 is used for guiding the second rack 14 and the driving block 30, namely guiding the upper clamping mechanism 1; the upper side of the mounting shell 20 is provided with a second rack port 22 and a first rack port 23, and the second rack port 22 is used for providing an outlet for the second rack 14 and preventing the second rack 14 from interfering with the mounting shell 20; the first rack port 23 functions to provide an outlet for the first rack 10, preventing the first rack 10 from interfering with the mounting case 20; the second rack port 22 is communicated with the first guide square hole 24, and as shown in fig. 1, the mounting shell 20 is mounted on the upper side of the bottom plate 6; as shown in fig. 6 and 9, the first supporting shaft 15 is installed in the installation shell 20 through two second shaft sleeves 32, and one end of the first supporting shaft 15 passes through the shaft hole 21 formed in the installation shell 20 and is located outside the installation shell 20, as shown in fig. 5, the driving handle 16 is installed at one end of the first supporting shaft 15 located outside the installation shell 20; as shown in fig. 6, the second gear 11 is mounted on the first support shaft 15; the second rack 14 is installed in the installation shell 20, and the second rack 14 is matched with a second rack opening 22 formed in the installation shell 20; as shown in fig. 9, the second rack 14 is connected to the driving block 30 through a second connecting block 33, and the driving block 30 is engaged with the first square guiding hole 24 formed in the mounting shell 20; as shown in fig. 10, the second rack 14 is engaged with the second gear 11; as shown in fig. 5 and 8, the second supporting shaft 31 is mounted in the mounting case 20 through two first bushings 17, the third gear 13 is mounted at one end of the second supporting shaft 31, and the third gear 13 is meshed with the second rack 14; as shown in fig. 10, the first gear 9 is mounted at the other end of the second support shaft 31, the first rack 10 is mounted in the mounting housing 20, the first rack 10 is connected with the lower clamping plate 8 through the first connecting block 27, and the first rack 10 is meshed with the first gear 9; the diameter ratio of the third gear 13 to the first gear 9 is 2.414 divided by 0.414; the driving handle 16 is manually driven to rotate around the first supporting shaft 15, the driving handle 16 drives the second gear 11 to rotate through the first supporting shaft, the second gear 11 rotates to drive the second rack 14 to move upwards, and the second rack 14 moves upwards to drive the driving block 30 to move upwards; meanwhile, the second rack 14 moves upwards to drive the third gear 13 meshed with the second rack to rotate, the third gear 13 rotates to drive a second support shaft 31 provided with the third gear 13 to rotate, the second support shaft 31 rotates to drive the first gear 9 arranged on the second support shaft to rotate, and the first gear 9 rotates to drive the first rack 10 meshed with the first gear 9 to move upwards; the first rack 10 moves upwards to drive the lower clamping plate 8 to move upwards; the diameter ratio of the third gear 13 to the first gear 9 designed in the invention is 2.414 divided by 0.414, which has the function of ensuring that the interval between the upper clamping plate 36 and the lower clamping plate 8 can clamp the PE pipe between the upper clamping plate 36 and the lower clamping plate 8 after the upper clamping plate 36 and the lower clamping plate 8 move upwards according to the PE pipe; because the upper side surface of the guide support 3 is provided with a V-shaped groove, two side surfaces of the V-shaped groove and the horizontal plane form an included angle of 45 degrees; the lower side surface of the upper clamping plate 36 and the upper side surface of the lower clamping plate 8 are on the same horizontal plane, and are both on the same horizontal plane with the end point of the lowest side of the V-shaped groove on the guide support 3; setting the radius of the PE pipe to be R, and according to the triangular pythagorean theorem, after the PE pipe is placed in the V-shaped groove on the guide support 3, the distance between the center of the PE pipe and the endpoint of the lowest side of the V-shaped groove on the guide support 3 is about 1.414R, namely the distance between the highest point of the PE pipe and the endpoint of the lowest side of the V-shaped groove on the guide support 3 is about 2.414R, and the distance between the lowest point of the PE pipe and the endpoint of the lowest side of the V-shaped groove on the guide support 3 is about 0.414R; the second rack 14 drives the upper clamping plate 36 to move upwards through the driving block 30, the first rack 10 drives the lower clamping plate 8 to move upwards, when the lower clamping plate 8 moves upwards to be in contact with the lowest point of the PE pipe, the distance that the upper side surface of the lower clamping plate 8 moves upwards is about 0.414R, and the lower side surface of the upper clamping plate 36 needs to move upwards 2.414R to ensure that the lower side surface of the upper clamping plate 36 and the highest point of the PE pipe are in the same horizontal plane, and the upper clamping plate 36 can rotate to clamp the PE pipe, so the distance that the second rack 14 moves upwards is 2.414 times of the distance that the first rack 10 moves upwards, and the diameter ratio of the third gear 13 to the first gear 9 is 2.414 of 0.414.

As shown in fig. 4, the fixed rack 19 is mounted on the side of the mounting case 20 opposite to the driving handle 16 through two fixing blocks 18, and as shown in fig. 14, the fixed rack 19 is engaged with the fourth gear 29; when the driving block 30 moves upward under the driving of the second rack 14, the driving block 30 drives the fourth gear 29 mounted thereon to move upward, the upward movement of the fourth gear 29 changes the displacement with the fixed rack 19 engaged therewith, the fourth gear 29 rotates under the driving of the fixed rack 19, the rotation of the fourth gear 29 drives the rack bar 35 engaged therewith to move upward, and the upward movement of the rack bar 35 drives the sixth gear 46 engaged therewith to rotate.

In the initial state, the lower side surface of the upper clamping plate 36 and the upper side surface of the lower clamping plate 8 are on the same horizontal plane, and are both on the same horizontal plane with the lowest end point of the V-shaped groove on the guide support 3; an included angle of 90 degrees is formed between the upper clamping plate 36 and the lower clamping plate 8, and the lower clamping plate 8 is vertical to the guiding direction of the guiding support; the distance of upward movement of the upper clamping plate 36 and the lower clamping plate 8 is ensured to be the same as the diameter of the PE pipe.

In summary, the following steps:

the beneficial effects of the design of the invention are as follows: on one hand, the fixing device can be freely moved in the using process and is convenient to use by fixing the guide support 3, the adjusting driving mechanism 2, the upper clamping mechanism 1 and the lower clamping plate 8 on the bottom plate 6; on the other hand, the distance between the upper clamping plate 36 and the lower clamping plate 8 is determined by controlling the adjusting driving mechanism 2 and the guide support 3 through measuring the PE pipes, so that the PE pipe fixing mechanism is suitable for PE pipes with different diameters, and the fixing mechanism is guaranteed to be suitable for the PE pipes with different diameters; meanwhile, the PE pipe is clamped through the deformation of the first elastic rubber plate 26 and the second elastic rubber plate 37, so that the PE pipe is ensured to be clamped with the upper clamping plate 36 and the lower clamping plate 8 through surface contact, and the stability is higher; in addition, the two clamping plates 64 are designed, and the driving mechanism 2 is adjusted to control the distance between the two clamping plates 64, so that the two clamping plates 64 can clamp and fix the two sides of the PE pipe, and the stable shape of the PE pipe in the processing process is ensured.

As shown in fig. 19, the inner side of the upper clamping plate 36 is provided with a square mounting groove 57 communicated with the pin hole 54, the upper side of the square mounting groove 57 at the end far away from the pin hole 54 is provided with a first through-going square sliding groove 56, the upper side of the square mounting groove 57 at the end near the pin hole 54 is provided with a first trapezoidal guide groove 55, the first trapezoidal guide groove 55 is communicated with the first square sliding groove 56, the lower side of the square mounting groove 57 at the end near the pin hole 54 is provided with a second through-going square sliding groove 58, the lower side of the square mounting groove 57 at the end far away from the pin hole 54 is provided with a second trapezoidal guide groove 59, and the second trapezoidal guide groove 59 is communicated with the second square; the first trapezoidal guide groove 55 plays a role in supporting and guiding the first driving rack 47; the second trapezoidal guide groove 59 plays a role in supporting and guiding the second driving rack 48; as shown in fig. 16, both ends of the first rotating shaft 62 are fixedly installed in square installation grooves 57 opened on the upper clamping plate 36, as shown in fig. 15, the sixth gear 46 is installed on the first rotating shaft 62, and the sixth gear 46 is engaged with the rack bar 35; two ends of the second rotating shaft 63 are fixedly installed in the square installation groove 57 formed in the upper clamping plate 36, the fifth gear 45 is installed on the second rotating shaft 63, and as shown in fig. 20, the fifth gear 45 is connected with the sixth gear 46 through a synchronous belt 60; as shown in fig. 23, the upper side of the first driving rack 47 has a trapezoidal guide block 68, as shown in fig. 17, the first driving rack 47 is installed in the upper clamping plate 36 by the sliding fit of the trapezoidal guide block 68 and the first trapezoidal guide groove 55 opened on the upper clamping plate 36, as shown in fig. 23, and the first driving rack 47 is connected with the second slider 52; the first driving rack 47 is positioned on the upper side of the fifth gear 45, and the first driving rack 47 is meshed with the fifth gear 45; the connecting part of the first driving rack 47 and the second sliding block 52 is matched with a first square sliding groove 56 formed on the upper clamping plate 36; as shown in fig. 18, the lower side of the second driving rack 48 has a trapezoidal guide block 68, the second driving rack 48 is mounted in the upper clamping plate 36 by the sliding fit of the trapezoidal guide block 68 and the second trapezoidal guide groove 59 opened on the upper clamping plate 36, and the second driving rack 48 is connected with the first slider 51; the second driving rack 48 is positioned at the lower side of the fifth gear 45, and the second driving rack 48 is meshed with the fifth gear 45; the connecting part of the second driving rack 48 and the first slide block 51 is matched with a second square sliding groove 58 formed in the upper clamping plate 36; when the sixth gear 46 rotates, the sixth gear 46 drives the fifth gear 45 to rotate through the timing belt 60, the fifth gear 45 rotates to drive the first driving rack 47 and the second driving rack 48 to move in opposite directions, and the first driving rack 47 and the second driving rack 48 move to drive the second slider 52 and the first slider 51 to move in opposite directions; the first slide block 51 and the second slide block 52 move to drive the clamping plates 64 mounted on the first slide block to move in opposite directions; the gear ratio of the sixth gear 46 and the fifth gear 45 is set so that the relative movement distance between the first slider 51 and the second slider 52 is consistent with the diameter of the PE pipe.

As shown in fig. 20, the fifth gear 45 and the sixth gear 46 each have a stopper ring 61 for preventing the timing belt 60 from sliding in the axial direction of the shafts 39 of the fifth gear 45 and the sixth gear 46.

A five-stage telescopic rod 49 is arranged between the mounting square plate 65 and the first sliding block 51; the telescopic rod 49 is nested in the middle of the corresponding return spring 50; the telescopic rod 49 is used for preventing the return spring 50 from being bent, and the return of the return spring 50 to the clamping plate 64 is influenced.

Four cutting plates which are distributed in a square shape are arranged on the outer side of the return spring 50, one ends of the cutting plates are arranged on the first sliding block 51 and the second sliding block 52, and the other ends of the cutting plates penetrate through the installation square plate 65 and are positioned on the upper side of the installation square plate 65; the function of the cut plate is to prevent the return spring 50 from bending and affecting the return of the return spring 50 to the catch plate 64.

As an alternative to the synchronous belt 60, the fifth gear 45 and the sixth gear 46 have chain teeth, and the fifth gear 45 and the sixth gear are connected by a chain.

As shown in fig. 8, the upper side of the lower clamp plate 8 has a first elastic rubber plate 26; increase the friction of lower pinch-off blades 8 and PE pipe, press from both sides tight PE pipe through the deformation of first elastic rubber board 26 for lower pinch-off blades 8 are more stable to the clamp of PE pipe.

As shown in fig. 17, one side of the lower end surface of the upper clamping plate 36 has an inclined surface 53, and the elastic rubber plate is engaged with the inclined surface 53; the purpose of the bevel 53 is to ensure that the upper clamping plate 36 can move smoothly to the upper side of the PE pipe.

As shown in fig. 26, the guide plate 7 is mounted on the bottom plate 6, three guide holes 72 are uniformly formed in the guide plate 7, as shown in fig. 25, three guide rods 71 are uniformly mounted on the lower side of the lower clamping plate 8, as shown in fig. 24, the lower clamping plate 8 is located on the upper side of the guide plate 7 through the cooperation of the three guide rods 71 and the three guide holes 72; the guide bar 71 serves to guide the lower clamping plate 8.

The first slider 51 and the second slider 52 are mounted on the upper clamp plate 36 via linear bearings.

In the invention, the upper clamping plate 36 moves upwards to reversely drive the lower clamping plate 8 to move upwards, namely, the distance between the upper clamping plate 36 and the lower clamping plate 8 is kept unchanged after the PE pipe is clamped, and any one of the upper clamping plate 36 and the lower clamping plate 8 cannot independently move, so that the fixing device designed by the invention has a self-locking function.

The specific working process is as follows: when the fixing device designed by the invention is used, firstly, a PE pipe is placed on the guide support 3, then, the driving handle 16 is manually driven to rotate around the first support shaft 15, the driving handle 16 drives the second gear 11 to rotate through the first support shaft, the second gear 11 drives the second rack 14 to move upwards when rotating, and the second rack 14 moves upwards to drive the driving block 30 to move upwards; the driving block 30 moves upwards to drive the upper clamping plate 36 to move upwards; meanwhile, the second rack 14 moves upwards to drive the third gear 13 meshed with the second rack to rotate, the third gear 13 rotates to drive a second support shaft 31 provided with the third gear 13 to rotate, the second support shaft 31 rotates to drive the first gear 9 arranged on the second support shaft to rotate, and the first gear 9 rotates to drive the first rack 10 meshed with the first gear 9 to move upwards; the first rack 10 moves upwards to drive the lower clamping plate 8 to move upwards; after the lower clamping plate 8 moves upwards to contact with the lowest point of the PE pipe, the distance between the upper clamping plate 36 and the lower clamping plate 8 is the same as the diameter of the PE pipe; the first slide block 51 and the second slide block 52 mounted on the upper clamping plate 36 also move relatively during the upward movement of the upper clamping plate 36 and the lower clamping plate 8, and the distance between the two is the same as the diameter of the PE pipe; then, manually driving the upper clamping plate 36 to rotate around the rack bar 35 to enable the upper clamping plate 36 to move to the upper side of the PE pipe, clamping the PE pipe through the upper clamping plate 36 and the lower clamping plate 8, manually pushing the installation square plate 65 downwards, driving the clamping plate 64 to move downwards through the installation square plate 65, and fixing the two sides of the PE pipe through the clamping plate 64; the downward movement of the catch plate 64 is as complete as possible to the lowermost side to ensure that the catch plate 64 grips the PE pipe as much as possible.

Claims

1. The utility model provides a PE pipe processingequipment which characterized in that: the device comprises an upper clamping mechanism, an adjusting driving mechanism, a guide support, support plates, a lower clamping plate and a bottom plate, wherein the guide support which plays a role in supporting and guiding a PE pipe in the pushing process is arranged on the upper side of the bottom plate through two symmetrically distributed support plates, a V-shaped groove is formed in the upper side surface of the guide support, and two side surfaces of the V-shaped groove and the horizontal plane form an included angle of 45 degrees; the adjusting driving mechanism is arranged on the upper side of the bottom plate, the upper clamping mechanism and the lower clamping machine plate are positioned on the upper side of the bottom plate, and the adjusting driving mechanism controls the upper clamping mechanism and the lower clamping plate to move up and down;

the upper clamping mechanism comprises a driving block, a rack rod, an upper clamping plate, a second elastic rubber plate, a clamping mechanism and a fourth gear, wherein the driving block is provided with a cylindrical groove which is communicated up and down; the driving block is controlled to move up and down by adjusting the driving mechanism; the fourth gear is arranged on the gear shaft; the rack rod is cylindrical, and the teeth on the rack rod are annular teeth; the rack rod is arranged on the driving block through a cylindrical groove on the driving block and is meshed with the fourth gear; one end of the upper clamping plate is provided with a pin hole, and the upper clamping plate is arranged on the driving block through the pin hole and the rotary fit of the rack rod; a second elastic rubber plate is arranged on the lower end face of the upper clamping plate; the clamping mechanism is arranged on the upper clamping plate and matched with the rack rod;

the clamping mechanism comprises a return spring, a first sliding block, a second sliding block, a clamping plate, a mounting square plate, a third elastic rubber plate and guide blocks, wherein the first sliding block and the second sliding block are identical in structure; the first sliding block and the second sliding block move back to back under the control of the movement of the rack bar;

the structures installed on the first sliding block and the second sliding block are completely the same, for the first sliding block, two guide blocks are symmetrically installed on two sides of the clamping plate, two clamping plates are symmetrically installed on the lower side of the installation square plate, the installation square plate is installed on the first sliding block through the sliding fit of the two clamping plates and the sliding grooves formed in the first sliding block, and the two guide blocks on the clamping plates are in sliding fit with the two guide grooves in the corresponding one of the two sliding grooves formed in the first sliding block; two return springs which cannot be bent are arranged between the mounting square plate and the first sliding block; a third elastic rubber plate is respectively arranged on the two clamping plates;

the third elastic rubber plates in the first sliding block and the second sliding block are tightly attached in an initial state;

the adjusting and driving mechanism comprises a first gear, a first rack, a second gear, a third gear, a second rack, a first supporting shaft, a driving handle, a first shaft sleeve, a fixing block, a fixing rack, an installation shell, a first connecting block, a second supporting shaft, a second shaft sleeve and a second connecting block, wherein a shaft hole is formed in one side of the installation shell, a second guiding square hole and a first guiding square hole are formed in the other side of the installation shell, a second rack opening and a first rack opening are formed in the upper side of the installation shell, the second rack opening is communicated with the first guiding square hole, and the installation shell is installed on the upper side of the bottom plate; the first supporting shaft is installed in the installation shell through two second shaft sleeves, one end of the first supporting shaft penetrates through a shaft hole formed in the installation shell and is located on the outer side of the installation shell, and the driving handle is installed at one end, located on the outer side of the installation shell, of the first supporting shaft; the second gear is arranged on the first supporting shaft; the second rack is arranged in the mounting shell and is matched with a second rack opening formed in the mounting shell; the second rack is connected with the driving block through a second connecting block, and the driving block is matched with a first guide square hole formed in the mounting shell; the second rack is meshed with the second gear; the second support shaft is arranged in the mounting shell through two first shaft sleeves, the third gear is arranged at one end of the second support shaft, and the third gear is meshed with the second rack; the first gear is arranged at the other end of the second supporting shaft, the first rack is arranged in the mounting shell, the first rack is connected with the lower clamping plate through a first connecting block, and the first rack is meshed with the first gear; the diameter ratio of the third gear to the first gear is 2.414 which is 0.414 min;

the fixed rack is arranged on one side of the mounting shell back to the driving handle through two fixed blocks and is meshed with the fourth gear;

in an initial state, the lower side surface of the upper clamping plate and the upper side surface of the lower clamping plate are on the same horizontal plane, and the lower side surfaces of the upper clamping plate and the lower clamping plate are on the same horizontal plane with the lowest end point of the V-shaped groove on the guide support; an included angle of 90 degrees is formed between the upper clamping plate and the lower clamping plate, and the lower clamping plate is vertical to the guide direction of the guide support;

the inner side of the upper clamping plate is provided with a square mounting groove communicated with the pin hole, the upper side surface of one end, far away from the pin hole, of the square mounting groove is provided with a through first square sliding groove, the upper side surface of one end, near the pin hole, of the square mounting groove is provided with a first trapezoid guide groove, the first trapezoid guide groove is communicated with the first square sliding groove, the lower side surface of one end, near the pin hole, of the square mounting groove is provided with a through second square sliding groove, the lower side surface of one end, far away from the pin hole, of the square mounting groove is provided with a second trapezoid guide groove, and the second trapezoid guide; two ends of the first rotating shaft are fixedly arranged in square mounting grooves formed in the upper clamping plate, the sixth gear is arranged on the first rotating shaft, and the sixth gear is meshed with the rack rod; two ends of a second rotating shaft are fixedly arranged in a square mounting groove formed in the upper clamping plate, a fifth gear is arranged on the second rotating shaft, and the fifth gear is connected with a sixth gear through a synchronous belt; the upper side of the first driving rack is provided with a trapezoidal guide block, the first driving rack is arranged in the upper clamping plate through the sliding fit of the trapezoidal guide block and a first trapezoidal guide groove formed in the upper clamping plate, and the first driving rack is connected with the second sliding block; the first driving rack is positioned on the upper side of the fifth gear and meshed with the fifth gear; the part where the first driving rack and the second sliding block are connected is matched with a first square sliding groove formed in the upper clamping plate; the lower side of the second driving rack is provided with a trapezoidal guide block, the second driving rack is arranged in the upper clamping plate through the sliding fit of the trapezoidal guide block and a second trapezoidal guide groove formed in the upper clamping plate, and the second driving rack is connected with the first sliding block; the second driving rack is positioned on the lower side of the fifth gear and meshed with the fifth gear; the part of the second driving rack connected with the first slide block is matched with a second square sliding groove formed in the upper clamping plate.

2. The PE pipe processing device according to claim 1, wherein: the fifth gear and the sixth gear are respectively provided with a limiting ring for preventing the synchronous belt from sliding along the axial direction of the fifth gear and the sixth gear.

3. The PE pipe processing device according to claim 1, wherein: a five-stage telescopic rod is arranged between the mounting square plate and the first sliding block; the telescopic rod is nested in the middle of the corresponding return spring.

4. The PE pipe processing device according to claim 1, wherein: four cutting plates which are distributed in a square shape are installed on the outer side of the reset spring, one end of each cutting plate is installed on the first sliding block and the second sliding block, and the other end of each cutting plate penetrates through the installation square plate and is located on the upper side of the installation square plate.

5. The PE pipe processing device according to claim 2, wherein: the above alternative scheme as the synchronous belt is that the fifth gear and the sixth gear are both provided with chain teeth, and the fifth gear and the sixth gear are connected through a chain.

6. The PE pipe processing device according to claim 1, wherein: the upper side of the lower clamping plate is provided with a first elastic rubber plate.

7. The PE pipe processing device according to claim 1, wherein: one side of the lower end face of the upper clamping plate is provided with an inclined plane, and the second elastic rubber plate is matched with the inclined plane.

8. The PE pipe processing device according to claim 1, wherein: the bottom plate is provided with a guide plate, the guide plate is uniformly provided with three guide holes, the lower side of the lower clamping plate is uniformly provided with three guide rods, and the lower clamping plate is positioned on the upper side of the guide plate through the matching of the three guide rods and the three guide holes.

9. The PE pipe processing device according to claim 1, wherein: the first slider and the second slider are mounted on the upper clamping plate through linear bearings.