Pipe blank guiding and positioning device for electric corrugated pipe production

Abstract

The invention relates to the technical field of corrugated pipe production equipment, in particular to a pipe blank guiding and positioning device for electric power corrugated pipe production. According to the pipe blank guiding and positioning device for electric corrugated pipe production, the technical problems that in the prior art, in the corrugated pipe blank conveying process, the positioning precision is low, and rolling is likely to happen are solved. A pipe blank guiding and positioning device for electric power corrugated pipe production comprises a rack. The sliding seat is connected to the rack in a sliding manner and is used for guiding a pipe blank; displacement of the sliding base is accurately controlled through the driving assembly, then the sliding base guides the pipe blank, accurate positioning of the pipe blank can be achieved, the position accuracy of the pipe blank in the production process is improved, and follow-up cutting and other operation are facilitated. The clamping assembly clamps the pipe blank through the multiple clamping jaws moving synchronously, the pipe blank can be firmly fixed, the problem that the pipe blank is prone to rolling due to the circular structure of the pipe blank in the conveying process is solved, and the stability of the pipe blank in the conveying process is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of corrugated pipe production equipment technology, and in particular to a pipe blank guiding and positioning device for the production of power corrugated pipes. Background Technology

[0002] Corrugated pipes are a new type of lightweight pipe made from high-density polyethylene. They are characterized by light weight, high pressure resistance, good toughness, fast construction, and long service life. Their excellent pipe wall structure design significantly reduces costs compared to other pipe structures.

[0003] Corrugated pipes in existing technologies are typically produced using continuous forming methods, such as forming machines. During continuous forming, the formed pipe blank needs to be cut, requiring it to be conveyed a certain distance before proceeding to the next step, such as slitting. Existing technologies utilize conveyor belts for transport. Because the outer surface of the pipe blank has raised ridges, the pipe blank and the conveyor belt are in line contact. This conveying method relies on the friction between the pipe blank and the conveyor belt, resulting in low positioning accuracy. Furthermore, the pipe blank is usually circular, making it prone to rolling during transport.

[0004] Therefore, in the existing technology, the tube blank transfer process of corrugated pipe has technical problems such as low positioning accuracy and easy rolling. Summary of the Invention

[0005] The present invention provides a tube blank guiding and positioning device for the production of power corrugated pipes, which solves the technical problems of low positioning accuracy and easy rolling during the tube blank conveying process of corrugated pipes in the prior art.

[0006] Some implementation schemes for solving the above-mentioned technical problems include: A tube blank guiding and positioning device for the production of power corrugated pipes includes a frame; A slide block, slidably connected to the frame, guides the tube blank; A drive assembly that drives the slide to reciprocate along the frame and positions the slide relative to the frame; and a clamping assembly, the clamping assembly being disposed on the slide block for clamping the tube blank; The slide block is provided with a ring frame, and the clamping assembly is provided on the ring frame. The clamping assembly includes a fixed ring rotatably connected to the ring frame, and a rotating ring rotatably connected to the fixed ring. The clamping assembly also includes a cover ring provided on the fixed ring. The cover ring is provided with a jaw. The rotating ring is provided with an end face thread that drives the jaw to reciprocate along the diameter direction of the cover ring. The jaw is provided with a threaded groove that mates with the end face thread. There are multiple jaws, and the multiple jaws are evenly arranged along the circumference of the cover ring. All the jaws move synchronously and at the same speed. The drive assembly includes a lead screw rotatably connected to the frame, the slide has a screw hole that mates with the lead screw, the drive assembly also has a guide rod, and the slide has a guide hole that mates with the guide rod.

[0007] Preferably, the grippers are provided with gripping grooves that engage with the spiral corrugations of the tube blank, and the line connecting all the gripping grooves of the grippers forms a gripping spiral line, which coincides with the tube fitting spiral line formed by the spiral corrugations of the tube blank.

[0008] Preferably, the fixed ring is provided with a mounting groove for mounting the rotating ring, the rotating ring is provided with a ring ridge protruding toward the fixed ring, and the fixed ring is provided with a ring groove that engages with the ring ridge.

[0009] Preferably, the annular ridge is coaxially arranged with the rotating ring, the annular ridge and the rotating ring are an integral structure, and the fixed ring is also provided with a driving mechanism for driving the rotating ring.

[0010] Preferably, the driving mechanism includes a worm gear rotatably connected to the fixed ring, a worm wheel that cooperates with the worm gear on the rotating ring, the worm wheel and the rotating ring being an integral structure, a mounting plate for mounting the worm gear on the fixed ring, the worm gear being rotatably connected to the mounting plate, and a bearing being provided between the worm gear and the mounting plate.

[0011] Preferably, the driving mechanism includes a driving bevel gear rotatably connected to the fixed ring, the rotating ring is provided with a gear ring that meshes with the driving bevel gear, the gear ring and the rotating ring are an integral structure, the driving bevel gear is provided with an operating part, there are multiple driving bevel gears, the multiple driving bevel gears are evenly arranged along the circumference of the fixed ring, and each driving bevel gear is provided with an independent operating part.

[0012] Preferably, the cover ring is fixed to the fixing ring by threads, and the cover ring is provided with a relief groove that guides the gripper, the relief groove passing through the cover ring.

[0013] Preferably, the cover ring is further provided with an extension cylinder extending toward the rotating ring, the rotating ring being rotatably connected to the extension cylinder, and the extension cylinder and the cover ring being an integral structure.

[0014] Preferably, the fixing ring is provided with an annular connecting ridge, and the ring frame is provided with an annular connecting groove that mates with the annular connecting ridge. The annular connecting ridge includes a positioning part that prevents the fixing ring from detaching from the ring frame along the axial direction and a connecting part that fixes the positioning part to the fixing ring. The positioning part and the connecting part are integral structures, and the connecting part and the fixing ring are integral structures. The thickness of the connecting part is less than the thickness of the positioning part.

[0015] Preferably, the drive assembly further includes a motor, which is fixed to the frame by bolts, and the output shaft of the motor drives the lead screw, which is arranged parallel to the guide rod.

[0016] Compared with the prior art, the present invention has the following advantages: By precisely controlling the displacement of the slide block through the drive assembly, and then guiding the tube blank through the slide block, accurate positioning of the tube blank can be achieved, improving the positional accuracy of the tube blank during the production process and facilitating subsequent operations such as cutting. The clamping assembly clamps the tube blank with multiple synchronously moving jaws, which can firmly fix the tube blank and prevent the tube blank from easily rolling during the conveying process due to its own circular structure, thus ensuring the stability of the tube blank during the conveying process.

[0017] Since the grippers can reciprocate along the diameter of the cover ring, the gripping range of the grippers can be adjusted according to tube blanks of different specifications (different diameters), thereby realizing the gripping and conveying of tube blanks of different specifications, improving the versatility and adaptability of the device.

[0018] The clamping assembly is mounted on the ring frame of the slide block. A fixed ring is rotatably connected to the ring frame, and a rotating ring is rotatably connected to the fixed ring. A cover ring is mounted on the fixed ring and has multiple grippers evenly distributed circumferentially, each gripper having threaded grooves. The rotating ring has end-face threads that mate with the threaded grooves of the grippers. When the rotating ring rotates, according to the principle of threaded drive, the end-face threads drive the grippers to reciprocate along the diameter of the cover ring. Because all grippers move synchronously and at the same speed, multiple grippers can simultaneously move towards the center or spread outwards, thus achieving the clamping or releasing of the tube blank.

[0019] The slide is slidably connected to the frame, and the lead screw in the drive assembly is rotatably connected to the frame. The slide has a screw hole that mates with the lead screw. When the lead screw rotates, according to the principle of screw drive, it converts the rotational motion into linear motion of the slide, causing the slide to move back and forth along the frame. Simultaneously, the guide rod engages with the guide hole on the slide to guide the movement, ensuring the linearity of the slide's movement and thus positioning the slide relative to the frame. The clamping assembly on the slide clamps the tube blank, pulling it a certain distance, and the slide's position is fixed when the lead screw stops rotating. Attached Figure Description

[0020] For illustrative purposes, several embodiments of the invention are illustrated in the following figures. These figures are incorporated herein by reference and form part of the detailed description. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring the concept of the subject matter of the invention.

[0021] Figure 1 This is a schematic diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0023] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 This is a schematic diagram of the cover ring.

[0025] Figure 5 This is a schematic diagram of a rotating ring.

[0026] Figure 6 This is a schematic diagram of the gripper.

[0027] Figure 7 This is a schematic diagram of the fixing ring.

[0028] Figure 8 This is a schematic diagram of the slide.

[0029] As shown in the figure: 1. Rack.

[0030] 2. Slide.

[0031] 3. Drive components, 31. Lead screw, 32. Guide rod, 33. Motor.

[0032] 4. Clamping assembly, 41. Fixing ring, 411. Mounting groove, 412. Ring groove, 413. Annular connecting ridge, 4131. Positioning part, 4132. Connecting part, 42. Rotating ring, 421. End face thread, 422. Ring ridge, 43. Cover ring, 431. Relief groove, 432. Extension cylinder, 44. Clamping claw, 441. Threaded groove, 442. Clamping groove.

[0033] 5. Ring frame, 51. Annular connecting groove. Detailed Implementation

[0034] The specific embodiments shown below are intended to describe various configurations of the subject matter of the invention and are not intended to represent the only configuration in which the subject matter of the invention can be practiced. The specific embodiments include particular details intended to provide a thorough understanding of the subject matter of the invention. However, it will be clear and apparent to those skilled in the art that the subject matter of the invention is not limited to the specific details shown herein and can be practiced without these specific details.

[0035] Understandably, in this document, relational terms such as “first” and “second” are intended to distinguish one entity or operation from another, and are not intended to expressly or imply any actual relationship or order between these entities or operations.

[0036] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Reference Figures 1 to 8 As shown, a tube blank guiding and positioning device for the production of power corrugated pipes includes a frame 1; Slide 2, which is slidably connected to the frame 1 and guides the tube blank; Drive component 3 drives the slide 2 to reciprocate along the frame 1 and positions the slide 2 relative to the frame 1; and clamping assembly 4, which is disposed on the slide 2 and is used to clamp the tube blank; The slide block 2 is provided with a ring frame 5, and the clamping assembly 4 is provided on the ring frame 5. The clamping assembly 4 includes a fixed ring 41 rotatably connected to the ring frame 5, and a rotating ring 42 rotatably connected to the fixed ring 41. The clamping assembly 4 also includes a cover ring 43 provided on the fixed ring 41. The cover ring 43 is provided with a gripper 44. The rotating ring 42 is provided with an end face thread 421 that drives the gripper 44 to reciprocate along the diameter direction of the cover ring 43. The gripper 44 is provided with a threaded groove 441 that mates with the end face thread 421. There are multiple grippers 44, and the multiple grippers 44 are evenly arranged along the circumference of the cover ring 43. All grippers 44 move synchronously and at the same speed. The drive assembly 3 includes a lead screw 31 rotatably connected to the frame 1, the slide 2 is provided with a screw hole that cooperates with the lead screw 31, the drive assembly 3 is also provided with a guide rod 32, and the slide 2 is provided with a guide hole that cooperates with the guide rod 32.

[0038] Understandably, this solution can be used in conjunction with a conveyor belt, or it can be combined with the forming speed of the forming setup.

[0039] For example, a conveyor belt or forming equipment outputs a tube blank at a certain speed, and the first force is applied by the conveyor belt or forming equipment when the tube blank is displaced.

[0040] The tube blank is clamped by the clamping assembly 4, and then the slide 2 is driven to move by the lead screw 31. The position speed of the slide 2 is equal to the displacement speed of the tube blank pushed by the first force, so that the tube blank is subjected to uniform force during the movement.

[0041] Since this solution uses clamping component 4 to clamp the tube blank and guide the tube blank by pulling the tube blank to move, the tube blank has high displacement accuracy during the displacement process. The tube blank will not roll during the displacement process and its direction will always remain parallel to the displacement direction of slide 2, thereby improving the displacement accuracy and positioning accuracy of the tube blank during the displacement process.

[0042] Reference Figure 3 As shown, in some embodiments, the gripper 44 is provided with a clamping groove 442 that engages with the spiral corrugations of the tube blank, and the clamping grooves 442 of all the grippers 44 are connected to form a clamping spiral line, which coincides with the tube fitting spiral line formed by the spiral corrugations of the tube blank.

[0043] There can be six or more grippers 44. Multiple grippers 44 increase the contact area between the clamping groove 442 and the tube blank, making it less likely for stress concentration to occur on the tube blank, thus making the tube blank less prone to damage.

[0044] It can be understood that, since the clamping groove 442 matches the spiral corrugations on the tube blank, the clamping assembly 4 can clamp the tube blank by rotating the fixing ring 41.

[0045] That is, multiple jaws 44 form a nut with multiple openings, and the tube blank can be regarded as a stud. The helical nut can make the nut formed by the jaws 44 engage with the stud formed by the tube blank, so as to further increase the contact area between the clamping groove 442 and the tube blank.

[0046] In some embodiments, the fixed ring 41 is provided with a mounting groove 411 for mounting the rotating ring 42, the rotating ring 42 is provided with an annular ridge 422 protruding toward the fixed ring 41, and the fixed ring 41 is provided with an annular groove 412 that engages with the annular ridge 422.

[0047] In some embodiments, the annular ridge 422 and the rotating ring 42 are coaxially arranged, the annular ridge 422 and the rotating ring 42 are an integral structure, and the fixed ring 41 is further provided with a driving mechanism for driving the rotating ring 42.

[0048] The arrangement of the ring 422 makes it easy to assemble the rotating ring 42 and the fixed ring 41, and the rotating ring 42 is not easily misaligned relative to the fixed ring 41.

[0049] In some embodiments, the driving mechanism includes a worm gear rotatably connected to the fixed ring 41, a rotating ring 42 having a worm wheel that cooperates with the worm gear, the worm wheel and the rotating ring 42 being an integral structure, the fixed ring 41 having a mounting plate for mounting the worm gear, the worm gear being rotatably connected to the mounting plate, and a bearing being provided between the worm gear and the mounting plate. The worm gear can be driven by an electric motor.

[0050] Another driving method parallel to the worm gear scheme: The driving mechanism includes a driving bevel gear rotatably connected to the fixed ring 41. The rotating ring 42 is provided with a gear ring that meshes with the driving bevel gear. The gear ring and the rotating ring 42 are an integral structure. The driving bevel gear is provided with an operating part. There are multiple driving bevel gears, which are evenly arranged along the circumference of the fixed ring 41. Each driving bevel gear is provided with an independent operating part.

[0051] The operating part can be a protruding column with a polygonal cross-section, or it can be a groove with a polygonal cross-section.

[0052] Reference Figures 3 to 8 As shown, in some embodiments, the cover ring 43 is threaded to the fixing ring 41, and the cover ring 43 is provided with a relief groove 431 for guiding the gripper 44, the relief groove 431 passing through the cover ring 43.

[0053] In some embodiments, the cover ring 43 is further provided with an extension cylinder 432 extending toward the rotating ring 42, the rotating ring 42 being rotatably connected to the extension cylinder 432, and the extension cylinder 432 and the cover ring 43 being an integral structure.

[0054] In some embodiments, the fixing ring 41 is provided with an annular connecting ridge 413, and the ring frame 5 is provided with an annular connecting groove 51 that cooperates with the annular connecting ridge 413. The annular connecting ridge 413 includes a positioning part 4131 that prevents the fixing ring 41 from detaching from the ring frame 5 along the axial direction and a connecting part 4132 that fixes the positioning part 4131 to the fixing ring 41. The positioning part 4131 and the connecting part 4132 are integral structures, and the connecting part 4132 and the fixing ring 41 are integral structures. The thickness of the connecting part 4132 is less than the thickness of the positioning part 4131.

[0055] In some embodiments, the retaining ring 41 may be a split structure to facilitate the assembly of the retaining ring 41 with the ring frame 5.

[0056] In some embodiments, the cross-sectional shape of the annular connecting rib 413 may also be trapezoidal to prevent the fixing ring 41 from displacing axially relative to the ring frame 5.

[0057] In some embodiments, the drive assembly 3 further includes a motor 33, which is fixed to the frame 1 by bolts. The output shaft of the motor 33 drives the lead screw 31, which is arranged parallel to the guide rod 32.

[0058] The motor 33 can drive the lead screw 31 through a reducer.

[0059] The technical solution of the present invention and its corresponding details have been described above. It is understood that the above description is only some implementation schemes of the technical solution of the present invention, and some details may be omitted in the specific implementation.

[0060] Furthermore, in some embodiments of the above invention, multiple embodiments may be combined; however, due to space limitations, all such combinations will not be listed here. Those skilled in the art can freely combine and implement the above embodiments according to their needs to obtain a better application experience.

[0061] When implementing the subject matter of this invention, those skilled in the art can obtain other detailed configurations or drawings based on the subject matter and drawings. Obviously, these details are still within the scope of the subject matter of this invention without departing from it.

Claims

1. A tube blank guiding and positioning device for the production of power corrugated pipes, characterized in that: The assembly includes a frame (1); a slide (2) slidably connected to the frame (1) and guiding the tube blank; a drive assembly (3) driving the slide (2) to reciprocate along the frame (1) and positioning the slide (2) relative to the frame (1); and a clamping assembly (4) disposed on the slide (2) for clamping the tube blank; wherein the slide (2) is provided with a ring frame (5), the clamping assembly (4) is disposed on the ring frame (5), the clamping assembly (4) includes a fixed ring (41) rotatably connected to the ring frame (5), the fixed ring (41) is rotatably connected to a rotating ring (42), and the clamping assembly (4) further includes a cover ring (43) disposed on the fixed ring (41). The cover ring (43) is provided with a gripper (44), and the rotating ring (42) is provided with an end face thread (421) that drives the gripper (44) to reciprocate along the diameter direction of the cover ring (43). The gripper (44) is provided with a threaded groove (441) that mates with the end face thread (421). There are multiple grippers (44), and the multiple grippers (44) are evenly arranged along the circumference of the cover ring (43). All grippers (44) move synchronously and at the same speed. The drive assembly (3) includes a lead screw (31) that is rotatably connected to the frame (1). The slide (2) is provided with a screw hole that mates with the lead screw (31). The drive assembly (3) is also provided with a guide rod (32), and the slide (2) is provided with a guide hole that mates with the guide rod (32).

2. The tube blank guiding and positioning device for power corrugated pipe production according to claim 1, characterized in that: The jaws (44) are provided with clamping grooves (442) that cooperate with the spiral corrugations of the tube blank. The clamping grooves (442) of all the jaws (44) are connected to form a clamping spiral line, which coincides with the tube fitting spiral line formed by the spiral corrugations of the tube blank.

3. The tube blank guiding and positioning device for power corrugated pipe production according to claim 2, characterized in that: The fixed ring (41) is provided with a mounting groove (411) for mounting the rotating ring (42), the rotating ring (42) is provided with a ring ridge (422) protruding toward the fixed ring (41), and the fixed ring (41) is provided with a ring groove (412) that matches the ring ridge (422).

4. The tube blank guiding and positioning device for power corrugated pipe production according to claim 3, characterized in that: The ring edge (422) and the rotating ring (42) are coaxially arranged, and the ring edge (422) and the rotating ring (42) are an integral structure. The fixed ring (41) is also provided with a driving mechanism for driving the rotating ring (42).

5. The tube blank guiding and positioning device for power corrugated pipe production according to claim 4, characterized in that: The driving mechanism includes a worm gear rotatably connected to the fixed ring (41), and a worm wheel that cooperates with the worm gear on the rotating ring (42). The worm wheel and the rotating ring (42) are an integral structure. The fixed ring (41) is provided with a mounting plate for mounting the worm gear. The worm gear is rotatably connected to the mounting plate, and a bearing is provided between the worm gear and the mounting plate.

6. The tube blank guiding and positioning device for power corrugated pipe production according to claim 4, characterized in that: The driving mechanism includes an active bevel gear rotatably connected to the fixed ring (41), and the rotating ring (42) is provided with a gear ring that meshes with the active bevel gear. The gear ring and the rotating ring (42) are an integral structure. The active bevel gear is provided with an operating part. There are multiple active bevel gears, and the multiple active bevel gears are evenly arranged along the circumference of the fixed ring (41). Each active bevel gear is provided with an independent operating part.

7. The tube blank guiding and positioning device for power corrugated pipe production according to claim 4, characterized in that: The cover ring (43) is fixed to the fixing ring (41) by threads. The cover ring (43) is provided with a relief groove (431) for guiding the jaw (44). The relief groove (431) passes through the cover ring (43).

8. The tube blank guiding and positioning device for power corrugated pipe production according to claim 7, characterized in that: The cover ring (43) is also provided with an extension cylinder (432) extending toward the rotating ring (42), the rotating ring (42) is rotatably connected to the extension cylinder (432), and the extension cylinder (432) and the cover ring (43) are an integral structure.

9. The tube blank guiding and positioning device for power corrugated pipe production according to claim 8, characterized in that: The fixing ring (41) is provided with an annular connecting ridge (413), and the ring frame (5) is provided with an annular connecting groove (51) that cooperates with the annular connecting ridge (413). The annular connecting ridge (413) includes a positioning part (4131) to prevent the fixing ring (41) from detaching from the ring frame (5) along the axial direction and a connecting part (4132) to fix the positioning part (4131) to the fixing ring (41). The positioning part (4131) and the connecting part (4132) are integral structures, and the connecting part (4132) and the fixing ring (41) are integral structures. The thickness of the connecting part (4132) is less than the thickness of the positioning part (4131).

10. The tube blank guiding and positioning device for producing power corrugated pipes according to claim 1, characterized in that: The drive assembly (3) also includes a motor (33), which is fixed to the frame (1) by bolts. The output shaft of the motor (33) drives the lead screw (31), which is arranged parallel to the guide rod (32).

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