Adjustable traction device for processing PE (Poly Ethylene) bent pipe

Abstract

The utility model provides an adjustable traction device for PE bent pipe machining. The adjustable traction device comprises a base, a main shaft, an alignment plate and a butt joint assembly. The base is arranged on the left side or the right side of the extruder in parallel, a positioning seat is slidably connected to the base, and the positioning seat is in transmission connection with a first driving component; the main shaft is rotationally arranged on the upper side face of the positioning base and is in transmission connection with a first rotation driving component. The main shaft is provided with a supporting arm, and the alignment plate is arranged on the supporting arm and connected with the supporting arm through a locking structure. The butt joint assembly is arranged on the alignment plate and used for being connected with the end of the PE bent pipe and moves along with the alignment plate with the main shaft as the center axis so that traction of the PE bent pipe can be achieved. According to the adjustable traction device for PE bent pipe machining, the movement track of the traction device can be adjusted by adjusting the positions of the positioning base and the alignment plate, so that the adjustable traction device adapts to machining of PE bent pipes with different specification requirements, the machining efficiency of the PE bent pipes is improved, and the forming effect of the PE bent pipes is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of PE pipe bending processing, and specifically relates to an adjustable traction device for PE pipe bending processing. Background Art

[0002] PE elbow is a pipe made of polyethylene (PE) material, and its main characteristics are large bending angle and large radius. Specifically, PE elbow usually refers to a pipe with an angle greater than or equal to 90 degrees and a radius greater than or equal to twice the diameter of the bend.

[0003] In the existing PE elbow processing process, after the elbow is discharged from the rubber extruder, it needs to first pass through the elbow mold and the cooling component to achieve preliminary shaping, and then form a pipe body structure with an arc cross section under the traction of the traction device.

[0004] The inventors found that the moving trajectory of the existing traction device is usually prefabricated. When processing PE elbows with different curvature requirements, it takes a lot of time and energy to adjust, and errors will occur, which in turn causes technical defects such as low processing efficiency and unstable forming effect of PE elbows. Utility Model Content

[0005] An embodiment of the present application provides an adjustable traction device for PE elbow processing, which aims to adjust the moving trajectory of the traction device to improve the processing efficiency of the PE elbow and ensure the forming effect of the PE elbow.

[0006] To achieve the above objectives, the technical solution adopted in this application is:

[0007] Provided is an adjustable traction device for PE pipe bending processing, comprising:

[0008] The base is arranged in parallel on the outside of the extruder, and the arrangement direction of the base and the extruder is defined as the left-right direction; the base has a positioning seat, the positioning seat is slidably connected to the upper side of the base along the left-right direction, and the positioning seat is transmission-connected to a linear drive member;

[0009] A main shaft is provided on the upper side of the positioning seat, and its axial direction is parallel to the up-down direction; the main shaft is connected to the positioning seat in a vertical direction, and the main shaft is connected to the first rotation driving member; and the main shaft has a support arm extending radially outward.

[0010] an alignment plate, disposed on the support arm, adapted to move along the length direction of the support arm, and having a locking structure between the alignment plate and the support arm; and

[0011] The docking assembly is arranged on the alignment plate, is used to be connected to the end of the PE elbow, and moves with the alignment plate with the main shaft as the central axis.

[0012] In a possible implementation, the linear drive component includes:

[0013] a rack fixedly connected to the base and extending in the left-right direction; and

[0014] The first rotating motor is fixedly arranged on the positioning seat, and the power output shaft is parallel to the front-rear direction; and the power output shaft of the first rotating motor is coaxially connected to a driving gear meshing with the rack.

[0015] In a possible implementation, the first rotation driving member includes:

[0016] A driving gear is provided on the upper side of the positioning seat, and its axial direction is parallel to the up-down direction; the driving gear is connected to the positioning seat in a vertical rotation direction, and is in transmission connection with a second rotation driving member; and

[0017] A driven gear, coaxially connected to the main shaft and meshing with the driving gear;

[0018] When the second rotation driving member drives the driving gear to rotate, the driven gear drives the main shaft to rotate synchronously.

[0019] In a possible implementation, the second rotation driving member includes:

[0020] a first transmission gear, coaxially disposed on the upper side of the driving gear and connected to the driving gear via a connecting rod; and

[0021] A second rotating motor is fixedly mounted on the upper side of the positioning seat, with a power output shaft parallel to the up-down direction, and a second transmission gear is coaxially connected to the power output shaft; and

[0022] A transmission belt is sleeved on the outer circumferences of the first transmission gear and the second transmission gear to synchronize the rotation of the power output shaft of the second rotating motor and the driving gear.

[0023] In a possible implementation, both upper and lower ends of the alignment plate are located outside the support arm, and the locking structure includes:

[0024] Two groups of locking rods are arranged side by side on the alignment plate in the vertical direction and are respectively located on the upper and lower sides of the support arm; each group of locking rods includes a plurality of locking rods arranged at intervals along the length direction of the support arm, and each locking rod extends toward the support arm to the side of the support arm facing away from the alignment plate;

[0025] a support plate disposed on the support arm and located on a side of the support arm facing away from the alignment plate; the support plate having two groups of through holes arranged in parallel in the vertical direction and corresponding one-to-one with the two groups of locking rods, and each group of through holes includes a plurality of through holes arranged at intervals along the length direction of the support arm and corresponding one-to-one with the corresponding plurality of locking rods; and

[0026] a plurality of connecting members connected to the extending ends of the plurality of locking rods in a one-to-one correspondence, and abutting against a side of the support plate facing away from the support arm, so that both the support plate and the alignment plate abut against the support arm;

[0027] In which, the extended end of the locking rod has an external thread structure, and the connecting piece is a nut suitable for threaded connection with the external thread structure; and the spacing between the two groups of locking rods is equal to the width of the support arm along the up and down directions, so that when the support plate and the alignment plate are both abutted against the support arm, the two groups of locking rods respectively abut against the two sides of the support arm in the up and down directions.

[0028] In a possible implementation, the adjustable traction device further includes:

[0029] A first swing arm, hinged to the extended end of the support arm, with the hinge axis perpendicular to the up-down direction; and

[0030] a second swing arm, hinged to the outer peripheral wall of the main shaft, with its hinge axis parallel to that of the first swing arm; and

[0031] a double-headed screw, disposed between the first swing arm and the second swing arm, and having two threaded portions;

[0032] The two threaded portions are respectively threadedly connected to the first swing arm and the second swing arm to coaxially connect the first swing arm and the second swing arm.

[0033] In one possible implementation, the docking component includes:

[0034] a connecting arm, fixedly connected to a side of the alignment plate facing away from the support arm, and extending outward away from the alignment plate; and

[0035] The docking sleeve is coaxially connected to the extended end of the connecting arm and adopts a structure with a hollow interior and an open opening facing away from the alignment plate for the insertion of the PE elbow.

[0036] In one possible implementation, a plurality of reserved holes are provided on the docking tube; the axial direction of each of the reserved holes is parallel to the axial direction of the docking tube, and a plug rod for connecting to the insertion end face of the PE elbow is inserted into each of the reserved holes, and each of the plug rods has a head suitable for abutting against the docking tube.

[0037] In a possible implementation, at least one pressure relief hole is formed on the outer peripheral wall of the docking sleeve, and the pressure relief hole penetrates the open surface of the docking sleeve along the axial direction of the docking sleeve; and the docking sleeve further includes:

[0038] A reinforcing tube is coaxially sleeved on the outer circumference of the butt joint tube, and its inner circumference is in contact with the outer circumference of the butt joint tube;

[0039] Among them, the reinforcement tube has a limiting ring with a ring-shaped vertical cross-section, which abuts the docking tube toward the side of the alignment plate, and the limiting ring has multiple through-holes corresponding to the multiple insertion rods one by one; when the insertion rod passes through the through-holes and is connected to the PE elbow, the head of the insertion rod abuts the limiting ring.

[0040] In one possible implementation, the upper side of the base has two guide rails arranged side by side in the front-to-back direction and extending in the left-to-right direction, and the lower side of the positioning seat has two sets of connection parts that are respectively slidably connected to the two guide rails in the left-to-right direction.

[0041] In an embodiment of the present application, when the docking assembly is connected to the end of the PE elbow, the main shaft is driven to rotate by the first rotating drive component, so that the support arm can swing synchronously, so that the end of the PE elbow can make a linear motion with the main shaft as the center axis along the alignment plate, thereby realizing the traction processing of the PE elbow.

[0042] On this basis, the linear driving component can realize the movement of the positioning seat in the left and right directions relative to the base. At the same time, by adjusting the relative position of the alignment plate and the support arm (and fixing the position through the locking structure), the movement trajectory can be adjusted to adapt to the PE pipe bending process with different specifications.

[0043] Compared with the prior art, the adjustable traction device for PE elbow processing provided in this embodiment can adjust the moving trajectory of the traction device to improve the processing efficiency of the PE elbow and ensure the forming effect of the PE elbow. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0045] Figure 1 This is one of the three-dimensional structural schematic diagrams of the adjustable traction device provided in an embodiment of the present application;

[0046] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle circle A;

[0047] Figure 3 for Figure 1 A partial enlarged schematic diagram of the middle circle B;

[0048] Figure 4 The second schematic diagram of the three-dimensional structure of the adjustable traction device provided in an embodiment of the present application;

[0049] Figure 5 A side view of an adjustable traction device provided in an embodiment of the present application;

[0050] Figure 6 Schematic diagram of the exploded structure of the linear drive component used in the embodiment of the present application (for ease of display, the rack in the figure is cross-sectionalized);

[0051] Figure 7 Schematic diagram of the three-dimensional structure of the first rotation drive member and the second rotation drive member used in the embodiment of the present application (for ease of display, the second rotation drive member in the figure is shown in an exploded view);

[0052] Figure 8 This is a schematic diagram of the exploded structure of the first swing arm, the second swing arm and the double-headed screw used in the embodiment of the present application;

[0053] Figure 9 A schematic diagram of the three-dimensional structure of the alignment plate and the docking assembly used in the embodiment of the present application in the assembled state;

[0054] Figure 10 This is a schematic diagram of the exploded structure of the docking assembly and reinforcement tube used in the embodiment of the present application;

[0055] Figure 11 This is a schematic diagram of the exploded structure of the locking structure used in the embodiment of the present application;

[0056] Explanation of reference numerals: 1. base; 11. guide rail; 12. positioning seat; 121. connection portion; 2. main shaft; 21. support arm; 3. alignment plate; 4. docking assembly; 41. connecting arm; 42. docking cylinder; 421. reserved hole; 422. pressure relief hole; 5. second rotation driving member; 51. first transmission gear; 511. connecting rod; 52. second rotation motor; 521. second transmission gear; 53. transmission belt; 61. First swing arm; 62, second swing arm; 63, double-headed screw; 7, insertion rod; 8, reinforcement tube; 81, limiting ring; 82, through hole; 9, locking structure; 91, locking rod; 92, support plate; 921, through hole; 93, connecting piece; 10, linear drive component; 101, rack; 102, first rotating motor; 1021, driving gear; 20, first rotating drive component; 201, driving gear; 202, driven gear. DETAILED DESCRIPTION

[0057] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0058] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0059] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0061] Please also refer to Figures 1 to 11The adjustable traction device for PE pipe bending processing provided by the present application is now described. The adjustable traction device proposed in the present application includes a base 1, a main shaft 2, an alignment plate 3 and a docking assembly 4.

[0062] The base 1 is used to be arranged in parallel on the outside of the extruder; in this embodiment, for the convenience of description, as shown in FIG. Figure 4 As shown, the arrangement direction of the base 1 and the extruder is defined as the left-right direction; the base 1 extends along the left-right direction, and accordingly, the width direction of the base 1 is the front-back direction.

[0063] The base 1 has a positioning seat 12 , which is slidably connected to the upper side of the base 1 along the left-right direction. The positioning seat 12 is also transmission-connected to a linear driving member 10 for driving it to slide along the left-right direction.

[0064] The main shaft 2 is arranged on the upper side of the positioning seat 12, and its axial direction is parallel to the up and down direction; the main shaft 2 is connected to the positioning seat 12 in a rotational manner along the up and down direction, and the main shaft 2 is connected to a first rotating drive component 20 for driving it to rotate around its own central axis.

[0065] The main shaft 2 has a support arm 21 extending radially outward, and the alignment plate 3 is arranged on the support arm 21 and is suitable for moving along the length direction of the support arm 21; and, there is a locking structure 9 between the alignment plate 3 and the support arm 21, and the alignment plate 3 and the support arm 21 can be connected through the locking structure 9 to limit the movement of the alignment plate 3 relative to the support arm 21.

[0066] The docking assembly 4 is arranged on the alignment plate 3, and is used to be connected to the end of the PE elbow, and is used to move with the alignment plate 3 with the main shaft 2 as the central axis.

[0067] In the embodiment of the present application, when the docking assembly 4 is connected to the end of the PE elbow, the main shaft 2 is driven to rotate by the first rotating drive member 20, so that the support arm 21 can swing synchronously, so that the end of the PE elbow can make a translational motion with the main shaft 2 as the center axis along the alignment plate 3, thereby realizing the traction processing of the PE elbow.

[0068] On this basis, the linear driving component 10 can realize the movement of the positioning seat 12 in the left and right directions relative to the base 1. At the same time, by adjusting the relative positions of the alignment plate 3 and the support arm 21 (and fixing the position through the locking structure 9), the movement trajectory can be adjusted to adapt to the PE pipe bending processing process with different specifications.

[0069] Compared with the prior art, the adjustable traction device for PE elbow processing provided in this embodiment can adjust the moving trajectory of the traction device to improve the processing efficiency of the PE elbow and ensure the forming effect of the PE elbow.

[0070] In some embodiments, as Figure 5 and Figure 6 As shown, the linear drive member 10 includes a rack 101 and a first rotary motor 102 .

[0071] The rack 101 is fixedly connected to the base 1 and extends in the left-right direction.

[0072] The first rotating motor 102 is fixedly arranged on the positioning seat 12, and the power output axis is parallel to the front-to-back direction; and, the power output shaft of the first rotating motor 102 is coaxially connected to a driving gear 1021 that meshes with the rack 101, so that when the first rotating motor 102 is started, the driving gear 1021 rotates, and through the meshing relationship between the driving gear 1021 and the rack 101, the positioning seat 12 is driven to move in the left and right directions relative to the base 1.

[0073] In some embodiments, as Figure 2 and Figure 7 As shown, the first rotation driving member 20 includes a driving gear 201 and a driven gear 202 .

[0074] The driving gear 201 is arranged on the upper side of the positioning seat 12 and its axial direction is parallel to the up-down direction; the driving gear 201 is connected to the positioning seat 12 in a vertical rotational direction and is transmission-connected to the second rotation driving member 5 for driving it to rotate.

[0075] The driven gear 202 is coaxially connected to the main shaft 2 and externally meshes with the driving gear 201 .

[0076] By adopting the above technical solution, when the second rotation driving member 5 drives the driving gear 201 to rotate, the driven gear 202 drives the main shaft 2 to rotate synchronously.

[0077] It should be noted that, in this embodiment, the first rotation driving member 20 is a member for driving the main shaft 2 to rotate, while the second rotation driving member 5 is a member for driving the driving gear 201 to rotate. There are obvious differences in the driving requirements of the two during the design stage.

[0078] In some embodiments, as Figure 2 and Figure 7 As shown, the second rotation driving member 5 includes a first transmission gear 51 , a second rotation motor 52 and a transmission belt 53 .

[0079] The first transmission gear 51 is coaxially arranged on the upper side of the driving gear 201 and is connected to the driving gear 201 through a connecting rod 511; wherein, the connecting rod 511 is coaxially connected to the bottom surface of the first transmission gear 51, and this connecting rod 511 is also coaxially arranged with the driving gear 201 to ensure the coaxial connection between the driving gear 201 and the first transmission gear 51.

[0080] The second rotary motor 52 is fixedly mounted on the upper side of the positioning seat 12 , and its power output shaft is parallel to the up-down direction. A second transmission gear 521 is coaxially connected to the power output shaft.

[0081] The transmission belt 53 is sleeved on the outer circumference of the first transmission gear 51 and the second transmission gear 521 to synchronize the rotation of the power output shaft of the second rotary motor 52 and the driving gear 201 .

[0082] It should be supplemented that the transmission belt 53 can be a chain structure that is compatible with the first transmission gear 51 and the second transmission gear 521 to ensure the stability of the transmission effect.

[0083] In some embodiments, as Figure 1 and Figure 11 As shown, the alignment plate 3 extends in the up-down direction, and its upper and lower ends are located at the upper and lower sides of the support arm 21 respectively.

[0084] Based on this, in this embodiment, the locking structure 9 includes two groups of locking rods 91 , a support plate 92 and a plurality of connecting members 93 .

[0085] Two groups of locking rods 91 are arranged side by side on the alignment plate 3 in the up and down directions, and are respectively located on the upper and lower sides of the support arm 21; each group of locking rods 91 includes multiple locking rods 91 arranged at intervals along the length direction of the support arm 21, and each locking rod 91 extends toward the support arm 21 to the side of the support arm 21 facing away from the alignment plate 3.

[0086] The support plate 92 is arranged on the support arm 21 and is located on the side of the support arm 21 facing away from the alignment plate 3; the support plate 92 has two groups of through holes 921 arranged in parallel along the up and down directions and corresponding one-to-one with the two groups of locking rods 91, and each group of through holes 921 includes multiple through holes 921 arranged at intervals along the length direction of the support arm 21 and corresponding one-to-one with the corresponding multiple locking rods 91.

[0087] The multiple connecting members 93 are connected to the extended ends of the multiple locking rods 91 in a one-to-one correspondence, and abut against the side of the support plate 92 facing away from the support arm 21, so that the support plate 92 and the alignment plate 3 are both in abutment with the support arm 21.

[0088] Among them, the extended end of the locking rod 91 has an external thread structure, and the connecting piece 93 is a nut suitable for threaded connection with the external thread structure. By screwing the nut onto the external thread structure, the locking rod 91 and the connecting piece 93 can be matched and connected; and the spacing between the two groups of locking rods 91 is equal to the width of the support arm 21 in the up and down directions, so that when the support plate 92 and the alignment plate 3 are both in contact with the support arm 21, the two groups of locking rods 91 respectively abut against the two sides of the support arm 21 in the up and down directions, thereby preventing the alignment plate 3 from shaking in the up and down directions.

[0089] In some embodiments, as Figure 1 、 Figure 4 and Figure 8 As shown, the adjustable traction device further includes a first swing arm 61 , a second swing arm 62 and a double-headed screw 63 .

[0090] The first swing arm 61 is hinged to the extended end of the support arm 21 , and the hinge axis is perpendicular to the up-down direction.

[0091] The second swing arm 62 is hinged on the outer peripheral wall of the main shaft 2 , and the hinge axis is parallel to the hinge axis of the first swing arm 61 .

[0092] The double-threaded screw 63 is disposed between the first swing arm 61 and the second swing arm 62 and has two threaded portions.

[0093] Among them, the two threaded parts of the double-headed screw 63 are respectively threadedly connected to the first swing arm 61 and the second swing arm 62 to coaxially connect the first swing arm 61 and the second swing arm 62; and the thread directions of the two threaded parts of the double-headed screw 63 are opposite, so that when the first swing arm 61 and the second swing arm 62 are connected at the same time, rotating the double-headed screw 63 can make the first swing arm 61 and the second swing arm 62 move toward each other, achieving a tightening effect.

[0094] In some embodiments, as Figure 9 and Figure 10 As shown, the docking assembly 4 includes a connecting arm 41 and a docking sleeve 42.

[0095] The connecting arm 41 is fixedly connected to a side of the alignment plate 3 facing away from the support arm 21 , and extends outward away from the alignment plate 3 .

[0096] The butt joint sleeve 42 is coaxially connected to the extended end of the connecting arm 41 and has a hollow interior and an open opening facing away from the alignment plate 3 for insertion of the PE elbow.

[0097] Among them, the connecting arm 41 can not only connect the alignment plate 3 and the docking tube 42, but also effectively extend the distance between the alignment plate 3 and the docking tube 42, ensuring that when rotation occurs, the alignment plate 3, the support arm 21 and related structures will not affect the movement of the docking tube 42.

[0098] In some embodiments, as Figure 3 、 Figure 9 and Figure 10 As shown, a plurality of reserved holes 421 are provided on the docking tube 42; the axial direction of each reserved hole 421 is parallel to the axial direction of the docking tube 42, and a plug rod 7 for connecting to the insertion end face of the PE elbow is inserted into each reserved hole 421, and each plug rod 7 has a head suitable for abutting against the docking tube 42.

[0099] Specifically, the connection between the insertion rod 7 and the end face of the PE elbow is achieved by taking advantage of the fact that the end face of the PE elbow is easy to insert hard objects during the process of self-softening and tightening of the PE elbow; in actual use, the insertion part of the insertion rod 7 can adopt a conical structure, or a screw or self-tapping screw structure to ensure stable insertion into the PE elbow, thereby achieving the connection between the PE elbow and the insertion rod 7, and the PE elbow and the docking tube 42.

[0100] In some embodiments, as Figure 3 、 Figure 9 and Figure 10 As shown, at least one pressure relief hole 422 is provided on the outer peripheral wall of the docking sleeve 42, and the pressure relief hole 422 passes through the open surface of the docking sleeve 42 along the axial direction of the docking sleeve 42 to reduce damage to the docking sleeve 42 when the PE elbow is tightened.

[0101] In this embodiment, the docking tube 42 also includes a reinforcement tube 8, which is coaxially sleeved on the outer periphery of the docking tube 42, and the inner peripheral surface of the reinforcement tube 8 is connected to the outer peripheral surface of the docking tube 42 to form a cylindrical structure composed of the reinforcement tube 8 and the docking tube 42 for fixing the PE elbow, thereby improving the fixing effect of the PE elbow.

[0102] The reinforcing tube 8 has a limiting ring 81 with a ring-shaped vertical cross section, which abuts against the docking tube 42 on the side facing the alignment plate 3 , and the limiting ring 81 has a plurality of through holes 82 corresponding to the plurality of insertion rods 7 .

[0103] By adopting the above technical solution, when the insertion rod 7 passes through the through hole 82 and is connected to the PE elbow, the head of the insertion rod 7 abuts against the limiting ring 81 to connect the reinforcement tube 8 and the docking tube 42.

[0104] In some embodiments, as Figure 1 and Figure 2 As shown, the upper side of the base 1 has two guide rails 11 arranged side by side in the front-to-back direction and extending in the left-to-right direction. The lower side of the positioning seat 12 has two sets of connecting portions 121 that are slidably connected to the two guide rails 11 in the left-to-right direction. Each set of connecting portions 121 includes multiple sliders spaced apart in the left-to-right direction and slidably connected to the guide rails 11 on the same side. In actual use, the combination of the guide rails 11 and the connecting portions 121 can achieve a sliding connection between the base 1 and the positioning seat 12. At the same time, it is also possible to arrange the bottom surface of the positioning seat 12 higher than the upper side of the base 1, thereby providing installation space for the aforementioned linear drive member 10.

[0105] The above content is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. Adjustable traction device for PE pipe bending processing, characterized by: include: The base is arranged in parallel on the outside of the extruder, and the arrangement direction of the base and the extruder is defined as the left-right direction; the base has a positioning seat, the positioning seat is slidably connected to the upper side of the base along the left-right direction, and the positioning seat is transmission-connected to a linear drive member; A main shaft is provided on the upper side of the positioning seat, and its axial direction is parallel to the up-down direction; the main shaft is connected to the positioning seat in a vertical direction, and the main shaft is connected to the first rotation driving member; and the main shaft has a support arm extending radially outward. an alignment plate, disposed on the support arm, adapted to move along the length direction of the support arm, and having a locking structure between the alignment plate and the support arm; as well as The docking assembly is arranged on the alignment plate, is used to be connected to the end of the PE elbow, and moves with the alignment plate with the main shaft as the central axis.

2. The adjustable traction device for PE pipe bending processing according to claim 1, characterized in that: The linear drive component comprises: a rack fixedly connected to the base and extending in the left-right direction; and The first rotating motor is fixedly arranged on the positioning seat, and the power output shaft is parallel to the front-rear direction; and the power output shaft of the first rotating motor is coaxially connected to a driving gear meshing with the rack.

3. The adjustable traction device for PE pipe bending processing according to claim 1, characterized in that: The first rotation driving member comprises: A driving gear is provided on the upper side of the positioning seat, and its axial direction is parallel to the up-down direction; the driving gear is connected to the positioning seat in a vertical rotation direction, and is in transmission connection with a second rotation driving member; and A driven gear, coaxially connected to the main shaft and meshing with the driving gear; When the second rotation driving member drives the driving gear to rotate, the driven gear drives the main shaft to rotate synchronously.

4. The adjustable traction device for PE pipe bending processing according to claim 3, characterized in that: The second rotation driving member comprises: a first transmission gear, coaxially disposed on the upper side of the driving gear and connected to the driving gear via a connecting rod; and A second rotating motor is fixedly mounted on the upper side of the positioning seat, with a power output shaft parallel to the up-down direction, and a second transmission gear is coaxially connected to the power output shaft; and A transmission belt is sleeved on the outer circumferences of the first transmission gear and the second transmission gear to synchronize the rotation of the power output shaft of the second rotating motor and the driving gear.

5. The adjustable traction device for PE pipe bending processing according to claim 1, characterized in that: The upper and lower ends of the alignment plate are both located outside the support arm, and the locking structure includes: Two groups of locking rods are arranged side by side on the alignment plate in the vertical direction and are respectively located on the upper and lower sides of the support arm; each group of locking rods includes a plurality of locking rods arranged at intervals along the length direction of the support arm, and each locking rod extends toward the support arm to the side of the support arm facing away from the alignment plate; a support plate disposed on the support arm and located on a side of the support arm facing away from the alignment plate; the support plate having two groups of through holes arranged in parallel in the vertical direction and corresponding one-to-one with the two groups of locking rods, and each group of through holes includes a plurality of through holes arranged at intervals along the length direction of the support arm and corresponding one-to-one with the corresponding plurality of locking rods; and a plurality of connecting members connected to the extending ends of the plurality of locking rods in a one-to-one correspondence, and abutting against a side of the support plate facing away from the support arm, so that both the support plate and the alignment plate abut against the support arm; In which, the extended end of the locking rod has an external thread structure, and the connecting piece is a nut suitable for threaded connection with the external thread structure; and the spacing between the two groups of locking rods is equal to the width of the support arm along the up and down directions, so that when the support plate and the alignment plate are both abutted against the support arm, the two groups of locking rods respectively abut against the two sides of the support arm in the up and down directions.

6. The adjustable traction device for PE pipe bending processing according to claim 1, characterized in that: The adjustable traction device further comprises: A first swing arm, hinged to the extended end of the support arm, with the hinge axis perpendicular to the up-down direction; and a second swing arm, hinged to the outer peripheral wall of the main shaft, with its hinge axis parallel to that of the first swing arm; and a double-headed screw, disposed between the first swing arm and the second swing arm, and having two threaded portions; The two threaded portions are respectively threadedly connected to the first swing arm and the second swing arm to coaxially connect the first swing arm and the second swing arm.

7. The adjustable traction device for PE pipe bending processing according to claim 1, characterized in that: The docking assembly includes: a connecting arm, fixedly connected to a side of the alignment plate facing away from the support arm, and extending outward away from the alignment plate; and The docking sleeve is coaxially connected to the extended end of the connecting arm and adopts a structure with a hollow interior and an open opening facing away from the alignment plate for the insertion of the PE elbow.

8. The adjustable traction device for PE pipe bending processing according to claim 7, characterized in that: A plurality of reserved holes are provided on the docking tube; the axial direction of each reserved hole is parallel to the axial direction of the docking tube, and a plug rod for connecting to the insertion end face of the PE elbow is inserted into each reserved hole, and each plug rod has a head suitable for abutting against the docking tube.

9. The adjustable traction device for PE pipe bending processing according to claim 8, characterized in that: At least one pressure relief hole is provided on the outer peripheral wall of the docking sleeve, and the pressure relief hole penetrates the open surface of the docking sleeve along the axial direction of the docking sleeve; and the docking sleeve further comprises: A reinforcing tube is coaxially sleeved on the outer circumference of the butt joint tube, and its inner circumference is in contact with the outer circumference of the butt joint tube; Among them, the reinforcement tube has a limiting ring with a ring-shaped vertical cross-section, which abuts the docking tube toward the side of the alignment plate, and the limiting ring has multiple through-holes corresponding to the multiple insertion rods one by one; when the insertion rod passes through the through-holes and is connected to the PE elbow, the head of the insertion rod abuts the limiting ring.

10. The adjustable traction device for PE pipe bending processing according to any one of claims 1 to 9, characterized in that: The upper side of the base has two guide rails arranged in parallel along the front-back direction and extending along the left-right direction. The lower side of the positioning seat has two groups of connection parts respectively connected to the two guide rails in a sliding manner along the left-right direction.

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