Multi-station pipe penetrating device

Abstract

The utility model discloses a multi-station pipe penetrating device which comprises a rack, a first positioning structure, a second positioning structure and a third positioning structure, the first positioning structure comprises a first mounting arm, a first driving assembly and at least two first positioning assemblies used for positioning the head end of a connecting sleeve; the second positioning structure comprises a second mounting arm, a second driving assembly and at least two second positioning assemblies used for positioning the head end of the connecting inner pipe. The third positioning structure comprises a third mounting arm and at least two third positioning assemblies arranged on the third mounting arm and used for positioning the tail end of the connecting inner pipe. The sleeve can be arranged outside the third positioning assembly in a sleeving mode and move towards the machine body in the direction away from the machine head along with the first positioning assembly so that the inner pipe can be arranged in the sleeve in a penetrating mode. According to the multi-station pipe penetrating device, pipe penetrating operation of at least two sets of inner pipes and sleeves can be completed at a time, the pipe penetrating efficiency is greatly improved, and the time cost invested by water pipe manufacturers is reduced.

Description

Technical Field

[0001] The utility model relates to the field of pipe threading machines, in particular to a multi-station pipe threading device. Background Art

[0002] Water pipes are often used in garden watering and car washing. Such water pipes usually include an inner pipe and a sleeve arranged outside the inner pipe. The inner pipe is generally made of plastic, rubber, silicone and other materials and is used to divert water. The sleeve is generally made of cloth and is mainly used to improve the wear resistance and aesthetics of the water pipe.

[0003] At present, in the process of producing such water pipes, water pipe manufacturers generally adopt manual pipe threading to thread the inner pipe into the casing. The pipe threading tools used for manual pipe threading are such as a telescopic water pipe processing device (China Invention Announcement No.: CN104669204B), which includes a roller fixed on the fixing device, a hook-shaped connecting rod hooked on the roller, a diamond-shaped locking head connected to the head of the hook-shaped connecting rod, and an inner sleeve sleeved on the diamond-shaped locking head. When in use, the end of the inner pipe is clamped and positioned between the diamond-shaped locking head and the inner sleeve, the head end of the casing is sleeved outside the hook-shaped connecting rod, and the inner pipe is threaded into the casing by the worker holding the head ends of the inner pipe and the casing and walking in a preset pipe threading direction. However, since the length of such water pipes is often more than 10m, and most of them exceed 30m or 50m, workers are required to hold the first end of the inner pipe and the first end of the casing and walk a pipe-threading distance of about 10m, 30m, or 50m during manual pipe threading. Moreover, one worker can only complete the pipe-threading operation of one set of inner pipes and casings by walking one round trip, so the pipe-threading efficiency is low and the time cost invested by the water pipe manufacturer is high. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a multi-station pipe threading device, which can complete the pipe threading operations of at least two groups of inner pipes and casing pipes at one time, greatly improving the pipe threading efficiency and reducing the time cost invested by water pipe manufacturers.

[0005] The utility model provides a multi-station pipe threading device, comprising a frame, a first positioning structure, a second positioning structure and a third positioning structure, wherein the frame comprises a machine body and a machine head arranged at one end of the machine body; the first positioning structure comprises a first mounting arm arranged on the machine body along the width direction of the machine body, a first driving component used to drive the first mounting arm to reciprocate along the length direction of the machine body, and at least two first positioning components arranged on the first mounting arm for positioning the head end of the connecting sleeve; the second positioning structure comprises a second mounting arm arranged on the machine body along the width direction of the machine body, a second driving component used to drive the second mounting arm to reciprocate along the length direction of the machine body The third positioning structure comprises a third mounting arm arranged on the machine head along the width direction of the machine body, and at least two third positioning components arranged on the third mounting arm for positioning the end of the connected inner tube; the first positioning structure is arranged on one side of the second positioning structure close to the third positioning structure, and each of the first positioning component, the second positioning component, and the third positioning component is arranged one by one, and the sleeve can be sleeved outside the third positioning component and move with the first positioning component toward the direction away from the machine head on the machine body, so that the inner tube is passed through the sleeve.

[0006] Preferably, the first mounting arm includes a first mounting frame arranged along the width direction of the body, the first mounting frame has a first sliding portion slidably connected to the body, and a first mounting portion protruding out of the side of the body, and the first positioning component is arranged on the first mounting portion; the second mounting arm includes a second mounting frame arranged along the width direction of the body, the second mounting frame has a second sliding portion slidably connected to the body, and a second mounting portion protruding out of the side of the body, and the second positioning component is arranged on the second mounting portion.

[0007] Preferably, both ends of the first sliding part are respectively connected to the first mounting parts, and each first mounting part is respectively provided with at least two first positioning components; both ends of the second sliding part are respectively connected to the second mounting parts, and each second mounting part is respectively provided with at least two second positioning components.

[0008] Preferably, the third mounting arm includes a positioning axis arranged along the width direction of the frame, the positioning axis has a connecting portion connected relative to the machine head, and a third mounting portion protruding out of the side of the machine head, the two ends of the connecting portion are respectively connected to the third mounting portions, and each third mounting portion is respectively connected to at least two positioning wheels for hanging the third positioning assembly.

[0009] Preferably, the outer periphery of the positioning wheel is recessed with a traction groove along its circumferential direction, the third positioning assembly includes a traction member, and a clamp connected to the head end of the traction member, the traction member is configured to be in a hook shape and hung on the traction groove, the end of the inner tube can be positioned and connected to the clamp, the head end of the sleeve can be sleeved toward the head end of the traction member through the end of the traction member and positioned and connected to the first positioning assembly, when the sleeve moves with the first positioning assembly toward the direction away from the head of the machine body, the positioning wheel can rotate around the axis of the positioning shaft to guide the sleeve to move along the traction groove.

[0010] Preferably, each of the first mounting parts is provided with four first positioning components, each of the second mounting parts is provided with four second positioning components, and each of the third mounting parts is provided with four third positioning components.

[0011] Preferably, the first driving component includes a first conveying member arranged on the body along the length direction of the body, and a first driving member for driving the first conveying member to reciprocate along the length direction of the body, and the first sliding part is provided with a first positioning block positioned and connected to the first conveying member; the second driving component includes a second conveying member arranged on the body along the length direction of the body, and a second driving member for driving the second conveying member to reciprocate along the length direction of the body, the second conveying member is arranged parallel and spaced apart from the first conveying member, and the second sliding part is provided with a second positioning block positioned and connected to the second conveying member; a slide rail arranged along the length direction of the body is provided on the body, a first slider slidably connected to the slide rail is provided on the first sliding part, and a second slider slidably connected to the slide rail is provided on the second sliding part, the first slider and the second slider are arranged spaced apart, and the relative distance between the first slider and the second slider can be adjusted by the first driving component and the second driving component.

[0012] Preferably, slide rails are respectively provided on both sides of the machine body, first sliders slidably connected to the slide rails on both sides are respectively provided at the bottom of the first sliding part, second sliders slidably connected to the slide rails on both sides are respectively provided at the bottom of the second sliding part, the first conveying member and the second conveying member are arranged between the two slide rails, the first positioning block is arranged at the bottom of the first sliding part and arranged between the two first sliders, and the second positioning block is arranged at the bottom of the second sliding part and arranged between the two second sliders.

[0013] Preferably, each of the first positioning components respectively includes a first positioning member arranged on the first mounting portion, a first main clamp and a first auxiliary clamp relatively arranged on the first positioning member, and a first switch member arranged on the first mounting portion and / or the first positioning member, the first switch member being used to control the first main clamp and the first auxiliary clamp to move relatively away from each other to an open state, and relatively close to each other to a use state, and in the use state, the first end of the sleeve can be clamped and positioned between the first main clamp and the first auxiliary clamp; each of the second positioning components respectively includes a second positioning member arranged on the second mounting portion, a second main clamp and a second auxiliary clamp relatively arranged on the second positioning member, and a second switch member arranged on the second mounting portion and / or the second positioning member, the second switch member being used to control the second main clamp and the second auxiliary clamp to move relatively away from each other to an open state, and relatively close to each other to a use state, and in the use state, the first end of the inner tube can be clamped and positioned between the second main clamp and the second auxiliary clamp.

[0014] Preferably, a first power source structure is provided on the first sliding part, and each of the first positioning components is connected to the first power source structure through a first power tube, and the power medium in the first power source structure can enter the first positioning component along the first medium channel in the first power tube to drive the first main clamp and the first auxiliary clamp to be relatively close to each other until they are in use, and the first switch component is connected to the first power tube for opening or closing the first medium channel in the first power tube; a second power source structure is provided on the second sliding part, and each of the second positioning components is connected to the second power source structure through a second power tube, and the power medium in the second power source structure can enter the second positioning component along the second medium channel in the second power tube to drive the second main clamp and the second auxiliary clamp to be relatively close to each other until they are in use, and the second switch component is connected to the second power tube for opening or closing the second medium channel in the second power tube.

[0015] The multi-station pipe threading device disclosed by the utility model has at least two first positioning components for positioning the head end of the connecting sleeve on the first mounting arm, at least two second positioning components for positioning the head end of the connecting inner tube on the second mounting arm, and at least two third positioning components for positioning the end of the connecting inner tube on the third mounting arm, and each first positioning component, second positioning component, and third positioning component are arranged in a one-to-one correspondence, so that the sleeves positioned and connected to each first positioning component can move along with the first mounting arm toward the direction away from the machine head on the machine body at the same time, so that the inner tubes positioned and connected to each second positioning component are threaded into the correspondingly arranged sleeves, and the pipe threading operations of at least two groups of inner tubes and sleeves are completed at one time, which greatly improves the pipe threading efficiency and reduces the time cost invested by the water pipe manufacturer; and because the first mounting arm can reciprocate along the length direction of the machine body under the drive of the first driving component, the second mounting arm It can reciprocate along the length direction of the machine body under the drive of the second drive component, so the machine can replace the worker's walking a back and forth pipe threading distance in the prior art, which greatly reduces the labor intensity of the workers and the labor cost of the water pipe manufacturer; in addition, each pipe threading station in the manual pipe threading site in the prior art needs to reserve a worker pipe threading walking area with a length of at least 10m or even 30m or 50m and a width of at least 1m, resulting in a large area occupied by the entire pipe threading site and a high pipe threading site cost for the water pipe manufacturer. The multi-station pipe threading device provided by the utility model can combine at least two stations in the prior art into one, and since there is no need to reserve a certain width of the worker pipe threading walking area, it can allow the width of each station to be set narrower and the adjacent stations to be set more compactly, thereby greatly reducing the area occupied by the entire pipe threading site and reducing the pipe threading site cost for the water pipe manufacturer.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 The figure is a schematic structural diagram of a multi-station pipe threading device according to one embodiment of the utility model.

[0019] Figure 2 A schematic diagram of the partial structure of a multi-station pipe threading device according to an embodiment of the utility model Figure 1 .

[0020] Figure 3It is a structural schematic diagram of a first positioning structure and a second positioning structure according to an embodiment of the utility model.

[0021] Figure 4 A schematic diagram of the partial structure of a multi-station pipe threading device according to an embodiment of the utility model Figure 2 .

[0022] Figure 5 A schematic diagram of the partial structure of a multi-station pipe threading device according to an embodiment of the utility model Figure 3 . DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the patent application specification and claims of the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not indicate a quantity limitation, but indicate the existence of at least one.

[0028] like Figure 1-5As shown, as an embodiment of the utility model, a multi-station pipe threading device is disclosed, including a first positioning structure 1, a second positioning structure 2, a third positioning structure 3, and a frame 4, wherein the frame 4 includes a body 41 and a head 42 arranged at one end of the body 41. The first positioning structure 1 includes a first mounting arm 12 arranged on the body 41 along the width direction of the body 41, a first driving component 14 for driving the first mounting arm 12 to reciprocate along the length direction of the body 41, and at least two first positioning components 11 for positioning the head end of the connecting sleeve arranged on the first mounting arm 12. The second positioning structure 2 includes a second mounting arm 22 arranged on the body 41 along the width direction of the body 41, a second driving component 23 for driving the second mounting arm 22 to reciprocate along the length direction of the body 41, and at least two second positioning components 21 for positioning the head end of the connecting inner pipe arranged on the second mounting arm 22. The third positioning structure 3 includes a third mounting arm 32 arranged on the machine head 42 along the width direction of the machine body 41, and at least two third positioning components 31 for positioning and connecting the ends of the inner tubes arranged on the third mounting arm 32. The first positioning structure 1 is arranged on one side of the second positioning structure 2 close to the third positioning structure 3, and each of the first positioning components 11, the second positioning component 21, and the third positioning component 31 is arranged one by one. The sleeve can be sleeved outside the third positioning component 31 and move with the first positioning component 11 toward the direction away from the machine head 42 on the machine body 41, so that the inner tube is inserted into the sleeve. The multi-station pipe threading device in this embodiment has at least two first positioning components 11 for positioning the head end of the connecting sleeve on the first mounting arm 12, at least two second positioning components 21 for positioning the head end of the connecting inner pipe on the second mounting arm 22, and at least two third positioning components 31 for positioning the end of the connecting inner pipe on the third mounting arm 32. The first positioning components 11, the second positioning components 21, and the third positioning components 31 are arranged in a one-to-one correspondence, so that the sleeve positioned and connected to each first positioning component 11 can move toward the direction away from the head 42 on the machine body 41 at the same time as the first mounting arm 12, so that the inner pipe positioned and connected to each second positioning component 21 is inserted into the correspondingly arranged sleeve, and the pipe threading operation of at least two groups of inner pipes and sleeves is completed at one time, which greatly improves the pipe threading efficiency and reduces the time cost invested by the water pipe manufacturer. And because the first mounting arm 12 can reciprocate along the length direction of the body 41 under the drive of the first driving assembly 13, and the second mounting arm 22 can reciprocate along the length direction of the body 41 under the drive of the second driving assembly 23, the machine can replace the worker's work of walking a back and forth distance to thread the pipe in the prior art, which greatly reduces the labor intensity of the workers and the labor cost of the water pipe manufacturer.In addition, in the prior art, each pipe threading station in the manual pipe threading site needs to reserve a length of at least 10m, even 30m or 50m, and a workers' walking area with a width of at least 1m, resulting in a large area occupied by the entire pipe threading site and a high pipe threading site cost for water pipe manufacturers. The multi-station pipe threading device provided in this embodiment can combine at least two stations in the prior art into one, and since there is no need to reserve a certain width of workers' walking area for pipe threading, the width of each station can be set narrower and the adjacent stations can be set more compactly, thereby greatly reducing the area occupied by the entire pipe threading site and reducing the pipe threading site cost for water pipe manufacturers.

[0029] like Figure 3 As shown, in some specific embodiments, the first mounting arm 12 includes a first mounting frame 121 arranged along the width direction of the machine body 41, the first mounting frame 121 has a first sliding portion 1211 slidably connected to the machine body 41, and a first mounting portion 1212 protruding out of the side of the machine body 41, and the first positioning assembly 11 is arranged on the first mounting portion 1212. The second mounting arm 22 includes a second mounting frame 221 arranged along the width direction of the machine body 41, the second mounting frame 221 has a second sliding portion 2211 slidably connected to the machine body 41, and a second mounting portion 2212 protruding out of the side of the machine body 41, and the second positioning assembly 21 is arranged on the second mounting portion 2212. The third mounting arm 32 includes a positioning shaft 321 arranged along the width direction of the frame 4, the positioning shaft 321 has a connecting portion 3211 connected to the machine head 42, and a third mounting portion 3212 protruding out of the side of the machine head 42, and the third positioning assembly 31 is arranged on the third mounting portion 3212. In this embodiment, by setting the first positioning component 11 on the first mounting portion 1212 protruding outside the side of the body 41, setting the second positioning component 21 on the second mounting portion 2212 protruding outside the side of the body 41, and setting the third positioning component 31 on the third mounting portion 3212 protruding outside the side of the head 42, the work station is arranged outside the side of the body 41, and an open area required for the inner pipe and sleeve to be threaded and moved during the pipe threading is directly formed outside the side of the frame 4, thereby saving the pipe threading site occupation, and the open area is convenient for workers to replace the sleeve and the inner pipe. In other embodiments, the first mounting portion 1212 and the second mounting portion 2212 can also be set inside the frame 4, so that the work station is arranged inside the frame 4 and the pipe threading operation can also be carried out.

[0030] In some specific embodiments, the first sliding portion 1211 is connected to the first mounting portion 1212 at both ends, and at least two first positioning components 11 are respectively provided on each first mounting portion 1212. The second sliding portion 2211 is connected to the second mounting portion 2212 at both ends, and at least two second positioning components 21 are respectively provided on each second mounting portion 2212. The third mounting portion 3212 is connected to the third mounting portion 3212 at both ends, and at least two positioning wheels 322 for hanging the third positioning components 31 are respectively connected to each third mounting portion 3212. In other words, the pipe threading operation of at least four groups of inner pipes and casings can be completed at one time, further improving the pipe threading efficiency and reducing the time cost invested by the water pipe manufacturer. The two ends of the first sliding portion 1211 are respectively connected to the first mounting portion 1212 protruding out of the side of the body 41, and the first positioning component 11 arranged on the first mounting portion 1212; the two ends of the second sliding portion 2211 are respectively connected to the second mounting portion 2212 protruding out of the side of the body 41, and the second positioning component 21 arranged on the second mounting portion 2212; the two ends of the connecting portion 3211 are respectively connected to the third mounting portion 3212 protruding out of the side of the head 42, so that the stability and balance of the arrangement of the first positioning structure 1, the second positioning structure 2, and the third positioning structure 3 relative to the body 41 are better. In other embodiments, the first mounting portion 1212 may also be only arranged at one end of the first sliding portion 1211, and the second mounting portion 2212 may also be only arranged at one end of the second sliding portion 2211.

[0031] like Figure 1As shown, in some specific embodiments, four first positioning components 11 are respectively arranged on each first mounting portion 1212, four second positioning components 21 are respectively arranged on each second mounting portion 2212, and four third positioning components 31 are respectively arranged on each third mounting portion 3212. In other words, the pipe threading operation of eight groups of inner pipes and casings can be completed at one time, further improving the pipe threading efficiency and reducing the time cost invested by the water pipe manufacturer. Moreover, the moving speed of the first positioning structure 1 and the second positioning structure 2 can be set faster than the walking speed of the workers in the prior art, so that the machine pipe threading speed is faster than the manual pipe threading speed, which can also further improve the pipe threading efficiency and reduce the time cost invested by the water pipe manufacturer. The spacing distance between two adjacent first positioning components 11, the spacing distance between two adjacent second positioning components 21, and the spacing distance between two adjacent third positioning components 31 are set to 10cm-30cm, preferably 15cm-20cm, which can ensure the complementary interference of the pipe threading operation of the inner pipe and the casing in the adjacent stations while making the adjacent stations compactly arranged, greatly reducing the floor space of the entire pipe threading site and reducing the pipe threading site cost of the water pipe manufacturer. Of course, in other embodiments, the first positioning assembly 11, the second positioning assembly 21, and the third positioning assembly 31 can also be set to other numbers, so that they can complete the pipe threading operations of other numbers of groups of inner tubes and sleeves at one time.

[0032] like Figure 3 As shown, in some specific embodiments, the outer periphery of the positioning wheel 322 is recessed with a traction groove 3221 along its circumferential direction, the third positioning assembly 31 includes a traction member 311, and a clamp 312 connected to the head end of the traction member 311, the traction member 311 is set in a hook shape and hung on the traction groove 3221, the end of the inner tube can be positioned and connected to the clamp 312, the head end of the sleeve can be sleeved toward the head end of the traction member 311 through the end of the traction member 311, and is positioned and connected to the first positioning assembly 11, when the sleeve moves with the first positioning assembly 11 toward the direction away from the head 42 on the body 41, the positioning wheel 322 can rotate around the axis of the positioning shaft 321 to guide the sleeve to move along the traction groove 3221, so as to keep the traction member 311 hung on the traction groove 3221 while allowing the sleeve sleeved outside the traction member 311 to move relative to the traction groove 3221 to be sleeved outside the inner tube.

[0033] In some specific embodiments, the clamp 312 includes a connector 3121, a mounting kit 3122 and a telescopic kit 3123. The connector 3121 has a positioning end that can extend into the inner end of the inner tube, and a connecting end away from the positioning end. The mounting kit 3122 is connected to the head end of the traction member 311, and the connector 3121 is sleeved in the mounting kit 3122 and connected to the mounting kit 3122 through the connecting end. The telescopic kit 3123 is sleeved in the mounting kit 3122 and outside the connector 3121, and can telescopically move relative to the mounting kit 3122 and the connector 3121 between a use state close to the positioning end and an open state away from the positioning end. When it is in the use state, the inner tube end can be clamped and positioned between the positioning end and the telescopic kit 3123, so that the inner tube end can be quickly installed on the third positioning assembly 31 or quickly removed from the third positioning assembly 31, further improving the pipe threading efficiency. A reset member (not shown in the figure) is arranged between the telescopic kit 3123 and the installation kit 3122. The reset member may be an elastic member such as a spring or elastic silicone, which can provide an operating force to keep the telescopic kit 3123 in a use state, and facilitate the quick installation of the inner tube end between the positioning end and the telescopic kit 3123. The installation kit 3122 and the head end of the traction member 311 are detachably connected, and the installation kit 3122 and the connecting end are detachably connected. The detachable connection structure may be a threaded connection structure or a snap connection structure, etc., to facilitate the replacement of the clamp 312. In other embodiments, the head end or the connecting end of the traction member 311 and the installation kit 3122 may also be set as an integral structure or fixedly connected as a whole by welding or other methods to improve the stability of the connection between the clamp 312 and the traction member 311. In other embodiments, the connecting end may also be directly connected to the head end of the traction member 311, or simultaneously connected to the installation kit 3122 and the head end of the traction member 311. As another embodiment of the present invention, the clamp 312 may also only include the connecting head 3121 and the telescopic kit 3123 , and the end of the inner tube may be staggered and positioned between the connecting end and the telescopic kit 3123 .

[0034] In some specific embodiments, the cross section of the traction member 311 is set to a circular structure, which is suitable for the pipe-threading operation of a circular inner pipe. As another embodiment of the utility model, the cross section of the traction member 311 can also be set to an elliptical structure or a combined structure composed of at least two circular structures connected side by side, so as to be suitable for the pipe-threading operation of an oblate inner pipe. In other embodiments, the cross section of the traction member 311 can also be set to other shapes such as square and triangle to adapt to the pipe-threading operation of inner pipes of other shapes such as square and triangle.

[0035] In other specific embodiments, a spherical expansion portion with a width greater than that of the traction member 311 is further provided at the end of the traction member 311 to expand the interior of the sleeve when the sleeve is sleeved outside the traction member 311, thereby preventing the sleeve from moving smoothly relative to the traction member 311 due to the inner walls of the sleeve sticking together.

[0036] like Figure 4 As shown, in some specific embodiments, the first driving component 13 includes a first conveying member 131 arranged on the body 41 along the length direction of the body 41, and a first driving member 132 for driving the first conveying member 131 to reciprocate along the length direction of the body 41. The first sliding portion 1211 is provided with a first positioning block 122 which is positioned and connected to the first conveying member 131. The first sliding portion 1211 can reciprocate along the length direction of the body 41 with the first conveying member 131 under the drive of the first driving member 132, so as to drive the head end of the sleeve positioned and connected to the first positioning component 12 to reciprocate along the length direction of the body 41 with the first conveying member 131 under the drive of the first driving member 132. The second driving assembly 23 includes a second conveying member 231 arranged on the body 41 along the length direction of the body 41, and a second driving member 232 for driving the second conveying member 231 to reciprocate along the length direction of the body 41. The second conveying member 231 is arranged in parallel and spaced apart from the first conveying member 131. The second sliding portion 2211 is provided with a second positioning block 222 which is positioned and connected to the second conveying member 231. The second sliding portion 2211 can reciprocate along the length direction of the body 41 with the second conveying member 231 under the drive of the second driving member 232, so as to drive the head end of the sleeve positioned and connected to the second positioning assembly 22 to reciprocate along the length direction of the body 41 with the second conveying member 231 under the drive of the second driving member 232.

[0037] In some specific embodiments, the first conveying member 41 is configured as a synchronous belt, the first driving structure 4 further includes a first driving wheel set 43 respectively sleeved on the inner side of both ends of the first conveying member 41, the first driving member 42 is configured as a driving motor, the first driving member 42 is connected to one of the first driving wheel sets 43 in a transmission manner, and is used to drive the first driving wheel set 43 to rotate forward and reversely, thereby driving the first conveying member 41 to reciprocate. The second conveying member 51 is configured as a synchronous belt, the second driving structure 5 further includes a second driving wheel set 53 respectively sleeved on the inner side of both ends of the second conveying member 51, the second driving member 52 is configured as a driving motor, the second driving member 52 is connected to one of the second driving wheel sets 53 in a transmission manner, and is used to drive the second driving wheel set 53 to rotate forward and reversely, thereby driving the second conveying member 51 to reciprocate. In other embodiments, the first conveying member 41 or the second conveying member 51 may also be configured as a synchronous chain or other structures that can be used to drive the first positioning structure 1 and the second positioning structure 2 to reciprocate.

[0038] like Figure 2As shown, in some specific embodiments, the machine body 41 is provided with a slide rail 43 arranged along the length direction of the machine body 41. The first sliding portion 1211 is provided with a first slider 123 slidably connected to the slide rail 43, and the first positioning structure 1 is guided by the first slider 123 to move along the slide rail 43 when it reciprocates along the length direction of the machine body 41. The second sliding portion 2211 is provided with a second slider 223 slidably connected to the slide rail 43, and the second positioning structure 2 is guided by the second slider 223 to move along the slide rail 43 when it reciprocates along the length direction of the machine body 41. The first slider 123 and the second slider 223 are arranged at intervals to avoid the first slider 123 and the second slider 223 from interfering with each other during the sliding process and affecting the normal movement of the first positioning structure 1 or the second positioning structure 2, and the first positioning structure 1 and the second positioning structure 2 are arranged at intervals to form an activity space for the bending and deformation of part of the inner tube between the first positioning component 11 and the second positioning component 21, thereby ensuring that part of the inner tube between the first positioning component 11 and the second positioning component 21 can be freely bent and deformed as the first positioning component 11 and the second positioning component 21 move toward the end of the body 41 away from the machine head 42 to smoothly penetrate into the sleeve, avoiding the part of the inner tube between the first positioning component 11 and the second positioning component 21 bending when the first positioning component 11 and the second positioning component 21 move toward the end of the body 41 away from the machine head 42 and affecting the smoothness of the pipe threading operation. Due to the different materials or shapes used to make the inner tube, the inner tubes of different materials or shapes have different softness, that is, the size of the activity space required for the inner tubes of different softness to bend and deform is also different. In this embodiment, the relative distance between the first slider 123 and the second slider 223 can be adjusted by the first drive component 13 and the second drive component 23, so that the relative distance between the first positioning component 11 and the second positioning component 21 can be adjusted with the first slider 123 and the second slider 223. For example, the second drive component 23 drives the second slider 223 away from the machine head 42 on the body 41, so that the second positioning component 21 moves away from the machine head 42 on the body 41 to an appropriate size of the activity space, thereby being able to adapt to the size of the activity space required for inner tubes of different softness, so that the pipe threading device can adapt to the pipe threading operations of inner tubes of different softness, and has a wide range of applications.

[0039] In some specific embodiments, slide rails 43 are respectively provided on both sides of the machine body 41, first sliders 123 slidably connected to the slide rails 43 on both sides are respectively provided at the bottom of the first sliding part 1211, and second sliders 223 slidably connected to the slide rails 43 on both sides are respectively provided at the bottom of the second sliding part 2211. The provision of the slide rails 43 on both sides makes the connection between the first sliding part 1211 and the second sliding part 2211 and the machine body 41 more stable and stable. The first conveying member 131 and the second conveying member 231 are arranged between the two slide rails 43, the first positioning block 122 is arranged at the bottom of the first sliding part 1211 and arranged between the two first sliders 123, and the second positioning block 222 is arranged at the bottom of the second sliding part 2211 and arranged between the two second sliders 223. The space arrangement is compact, so that the overall space occupied by the pipe threading device is small, and the pipe threading site occupied by the pipe threading device is reduced.

[0040] like Figure 3 As shown, in some specific embodiments, each first positioning component 11 respectively includes a first positioning member 114 arranged on the first mounting portion 1212, a first main clamp 111 and a first auxiliary clamp 112 relatively arranged on the first positioning member 114, and a first switch member 115 arranged on the first mounting portion 1212. The first switch member 115 is used to control the first main clamp 111 and the first auxiliary clamp 112 to be relatively away from each other to an open state, and relatively close to each other to a use state. In the use state, the head end of the sleeve can be clamped and positioned between the first main clamp 111 and the first auxiliary clamp 112, so that the head end of the sleeve can be quickly installed on the first positioning component 11, or quickly removed from the first positioning component 11, and the pipe threading efficiency is higher. Each second positioning assembly 21 includes a second positioning member 213 disposed on the second mounting portion 2212, a second main clamp 211 and a second auxiliary clamp 212 disposed relatively on the second positioning member 213, and a second switch 214 disposed on the second mounting portion 2212. The second switch 214 is used to control the second main clamp 211 and the second auxiliary clamp 212 to be relatively far away from each other to an open state, and relatively close to each other to a use state. In the use state, the head end of the inner tube can be clamped and positioned between the second main clamp 211 and the second auxiliary clamp 212, so as to facilitate the quick installation of the head end of the inner tube on the second positioning assembly 21, or to quickly remove it from the second positioning assembly 21, thereby further improving the efficiency of pipe threading. In other embodiments, the first switch 115 can also be disposed on the first positioning member 114, or on both the first mounting portion 1212 and the first positioning member 114, or the second switch 214 can also be disposed on the second positioning member 213, or on both the second mounting portion 2212 and the second positioning member 213.

[0041] In some specific embodiments, a first power source structure (not shown in the figure) is provided on the first sliding portion 1211, and each first positioning component 11 is connected to the first power source structure through a first power tube (not output in the figure). The gas, liquid or other power medium in the first power source structure can enter the first positioning component 11 along the first medium channel in the first power tube to drive the first main clamp 111 and the first auxiliary clamp 112 to be relatively close to a use state. The first switch 115 is connected to the first power tube for opening or closing the first medium channel in the first power tube, so that the pneumatic control system or the hydraulic control system drives the first main clamp 111 and the first auxiliary clamp 112 to be relatively close or away from each other, so that the first positioning component 11 can be easily switched between the use state and the open state, and it is convenient for workers to replace the sleeve. The second sliding part 2211 is provided with a second power source structure (not shown in the figure), and each second positioning assembly 21 is connected to the second power source structure through a second power tube (not shown in the figure). The power medium such as gas and liquid in the second power source structure can enter the second positioning assembly 21 along the second medium channel in the second power tube to drive the second main clamp 211 and the second auxiliary clamp 212 to be relatively close to each other until they are in use. The second switch 214 is connected to the second power tube to open or close the second medium channel in the second power tube, so that the air pressure control system or the hydraulic control system drives the second main clamp 211 and the second auxiliary clamp 212 to be relatively close to each other or away from each other, so that the second positioning assembly 21 can be easily switched between the use state and the open state, and it is convenient for workers to replace the inner tube. In other embodiments, the first main clamp 111 and the first auxiliary clamp 112, or the second main clamp 211 and the second auxiliary clamp 212 can also be controlled by a mechanical structure to be relatively close to each other or away from each other, so that the first positioning assembly 11 or the second positioning assembly 21 can be switched between the use state and the open state.

[0042] like Figure 3 As shown, in some specific embodiments, the first positioning assembly 11 further includes a sleeve 113, and a pipe threading channel 1131 is formed inside the sleeve 113 for the inner tube to pass through. The head end of the sleeve can be sleeved outside the sleeve 1131, so that the head end of the sleeve is supported outside the sleeve 113, and the inner tube moves relative to the sleeve by moving along the pipe threading channel 1131, which is conducive to the movement of the inner tube relative to the sleeve for pipe threading. A first positioning groove 1111 is recessed on one side of the first main clamp 111 close to the first auxiliary clamp 112, and a second positioning groove 1121 is recessed on one side of the first auxiliary clamp 112 close to the first main clamp 111 and arranged opposite to the first positioning groove 1111. When the first main clamp 111 and the first auxiliary clamp 112 are in use, a clamping channel for clamping the head end of the positioning sleeve can be formed between the sleeve 113, the first positioning groove 1111 and the second positioning groove 1121.

[0043] In some specific embodiments, the socket is made of hard materials such as metal and rubber and has a certain supporting strength so as to stably support the head end of the sleeve outside the socket 113, which is beneficial for the inner tube to move freely and smoothly along the tube passage 1131 and is beneficial for the head end of the sleeve to be more stably clamped and positioned in the clamping channel. The shape of the tube threading channel 1131 is matched with the shape of the inner tube. In the present embodiment, the tube threading channel 1131 is set as a circular structure, which is suitable for the tube threading operation with a circular inner tube. The sleeve 113 is set as a cylindrical structure. At this time, the positioning groove 1111 and the positioning groove 2 1121 can be respectively set as arc groove structures matching the cylindrical structure, so as to stably clamp and position the head end of the sleeve in the clamping channel; as another embodiment of the present utility model, the tube threading channel can also be set as an elliptical structure, which is suitable for the tube threading operation with an oblate inner tube. At this time, the sleeve 113 can be set as an elliptical cylinder structure, and the positioning groove 1 1111 and the positioning groove 2 1121 can be respectively set as elliptical arc groove structures matching the elliptical cylinder structure, so as to stably clamp and position the head end of the sleeve in the clamping channel; in other embodiments, the tube threading channel can also be set as square, triangle or other shaped structures to be suitable for the tube threading operation with inner tubes of other shapes such as square and triangle.

[0044] like Figure 3 As shown, in some specific embodiments, the first mounting arm 12 is configured as a horizontally arranged plate structure, the first positioning member 114 is connected to the side of the first mounting portion 1212 close to the third positioning structure 3, the first main clamp 111 and the first auxiliary clamp 112 are installed on the first positioning member 114, and are arranged below the first mounting portion 1212 and on the side of the first positioning member 114 away from the body 41, and a accommodating area is formed between the lower side of the first mounting portion 1212 and the first main clamp 111 and the first auxiliary clamp 112. The second mounting arm 22 is configured as a horizontally arranged plate structure, the second positioning member 213 is connected to the lower side of the second mounting portion 2212 and extends in the direction close to the first positioning component 21, the second main clamp 211 and the second auxiliary clamp 212 are installed on the second positioning member 214 close to one end of the first positioning component 21, and the second positioning member 214 can extend into the accommodating area to allow the second main clamp 211 and the second auxiliary clamp 212 to be close to the first main clamp 111 and the first auxiliary clamp 112, so that after the pipe threading is completed, the head end of the inner pipe and the head end of the sleeve can be closer, and the pipe threading operation is more complete.

[0045] like Figure 5As shown, in some specific embodiments, the third positioning structure 3 also includes a third driving assembly 33 for driving the positioning shaft 321 to rotate around the axis of the positioning shaft 321. The connecting portion 3211 is rotatably connected to the machine head 42, and the positioning wheel 322 is relatively fixedly connected to the positioning shaft 321, and can rotate relative to the machine head 42 around the axis of the positioning shaft 321 as the positioning shaft 321 rotates. The third driving assembly 33 includes a third conveying member 331, a third driving member 332, and a third driving wheel group 333. The third conveying member 331 is set as a synchronous belt, and the inner sides of the two ends of the third conveying member 331 are respectively sleeved with third driving wheel groups 333, one of which is relatively fixedly connected to the connecting portion 3211, and the third driving member 332 is set as a driving motor, and is in transmission connection with another third driving wheel group 333, and can drive the third driving wheel group 333 to rotate to drive the positioning shaft 321 to rotate, so as to cooperate with the sleeve to move toward the preset pipe-threading direction, which is more conducive to guiding the sleeve to move smoothly toward the preset pipe-threading direction. In other embodiments, the third drive assembly 33 may not be provided, and the positioning wheel 322 may be directly rotatably connected to the positioning shaft 321, so that the positioning wheel 322 can rotate relative to the axis of the positioning shaft 321 in coordination with the movement of the sleeve when the sleeve moves toward the end of the body 41 away from the head 42.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the utility model.

[0047] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A multi-station pipe threading device, characterized in that: include: A frame, comprising a body and a head arranged at one end of the body; The first positioning structure comprises a first mounting arm arranged on the machine body along the width direction of the machine body, a first driving assembly for driving the first mounting arm to reciprocate along the length direction of the machine body, and at least two first positioning assemblies arranged on the first mounting arm for positioning the head end of the connecting sleeve; The second positioning structure includes a second mounting arm arranged on the machine body along the width direction of the machine body, a second driving assembly for driving the second mounting arm to reciprocate along the length direction of the machine body, and at least two second positioning assemblies arranged on the second mounting arm for positioning the head end of the connecting inner tube; A third positioning structure, comprising a third mounting arm arranged on the nose along the width direction of the machine body, and at least two third positioning components arranged on the third mounting arm for positioning the end of the connecting inner tube; The first positioning structure is arranged on one side of the second positioning structure close to the third positioning structure, and the first positioning components, the second positioning components, and the third positioning components are arranged one by one. The sleeve can be sleeved outside the third positioning component and move along with the first positioning component toward the direction away from the head of the machine body so that the inner tube is inserted into the sleeve.

2. The multi-station pipe threading device according to claim 1 is characterized in that: The first mounting arm comprises a first mounting frame arranged along the width direction of the machine body, the first mounting frame comprises a first sliding portion slidably connected to the machine body, and a first mounting portion protruding out of the side portion of the machine body, and the first positioning assembly is arranged on the first mounting portion; The second mounting arm comprises a second mounting frame arranged along the width direction of the machine body, the second mounting frame has a second sliding portion slidably connected to the machine body, and a second mounting portion protruding out of the side of the machine body, and the second positioning assembly is arranged on the second mounting portion.

3. The multi-station pipe threading device according to claim 2 is characterized in that: Both ends of the first sliding portion are respectively connected to first mounting portions, and at least two first positioning components are respectively arranged on each first mounting portion; Two ends of the second sliding portion are respectively connected to second mounting portions, and at least two second positioning components are respectively arranged on each second mounting portion.

4. The multi-station pipe threading device according to claim 3 is characterized in that: The third mounting arm includes a positioning shaft arranged along the width direction of the frame, the positioning shaft has a connecting portion connected to the head, and a third mounting portion protruding out of the side of the head, the two ends of the connecting portion are respectively connected to the third mounting portions, and each third mounting portion is respectively connected to at least two positioning wheels for hanging the third positioning assembly.

5. The multi-station pipe threading device according to claim 4 is characterized in that: The outer periphery of the positioning wheel is recessed with a traction groove along its circumferential direction. The third positioning assembly includes a traction member and a clamp connected to the head end of the traction member. The traction member is configured in a hook shape and hung on the traction groove. The end of the inner tube can be positioned and connected to the clamp. The head end of the sleeve can be sleeved toward the head end of the traction member through the end of the traction member and positioned and connected to the first positioning assembly. When the sleeve moves along with the first positioning assembly toward the direction away from the head of the machine body, the positioning wheel can rotate around the axis of the positioning shaft to guide the sleeve to move along the traction groove.

6. The multi-station pipe threading device according to claim 4, characterized in that: Four first positioning components are respectively arranged on each of the first mounting parts; four second positioning components are respectively arranged on each of the second mounting parts; and four third positioning components are respectively arranged on each of the third mounting parts.

7. The multi-station pipe threading device according to any one of claims 2 to 6, characterized in that: The first driving assembly includes a first conveying member arranged on the machine body along the length direction of the machine body, and a first driving member for driving the first conveying member to reciprocate along the length direction of the machine body, and the first sliding portion is provided with a first positioning block which is positioned and connected with the first conveying member; The second driving assembly includes a second conveying member arranged on the machine body along the length direction of the machine body, and a second driving member for driving the second conveying member to reciprocate along the length direction of the machine body, the second conveying member is arranged parallel to and spaced from the first conveying member, and the second sliding portion is provided with a second positioning block which is positioned and connected with the second conveying member; The machine body is provided with a slide rail arranged along the length direction of the machine body, the first sliding part is provided with a first slider slidably connected to the slide rail, the second sliding part is provided with a second slider slidably connected to the slide rail, the first slider and the second slider are arranged at intervals, and the relative distance between the first slider and the second slider can be adjusted by the first driving component and the second driving component.

8. The multi-station pipe threading device according to claim 7, characterized in that: Slide rails are respectively provided on both sides of the machine body, first sliders slidably connected to the slide rails on both sides are respectively provided at the bottom of the first sliding part, second sliders slidably connected to the slide rails on both sides are respectively provided at the bottom of the second sliding part, the first conveying member and the second conveying member are arranged between the two slide rails, the first positioning block is arranged at the bottom of the first sliding part and arranged between the two first sliders, and the second positioning block is arranged at the bottom of the second sliding part and arranged between the two second sliders.

9. The multi-station pipe threading device according to any one of claims 2 to 6, characterized in that: Each of the first positioning components comprises a first positioning member arranged on the first mounting portion, a first main clamping member and a first auxiliary clamping member arranged relatively on the first positioning member, and a first switch member arranged on the first mounting portion and / or the first positioning member, wherein the first switch member is used to control the first main clamping member and the first auxiliary clamping member to move away from each other to an open state and to move closer to each other to a use state, and in the use state, the first end of the sleeve can be clamped and positioned between the first main clamping member and the first auxiliary clamping member; Each of the second positioning components respectively includes a second positioning member arranged on the second mounting portion, a second main clamp and a second auxiliary clamp relatively arranged on the second positioning member, and a second switch member arranged on the second mounting portion and / or the second positioning member, the second switch member is used to control the second main clamp and the second auxiliary clamp to relatively move away from each other to an open state, and relatively move close to each other to a use state, and in the use state, the head end of the inner tube can be clamped and positioned between the second main clamp and the second auxiliary clamp.

10. The multi-station pipe threading device according to claim 9, characterized in that: The first sliding part is provided with a first power source structure, each of the first positioning components is connected to the first power source structure through a first power tube, and the power medium in the first power source structure can enter the first positioning component along the first medium channel in the first power tube to drive the first main clamp and the first auxiliary clamp to be relatively close to each other until they are in use, and the first switch is connected to the first power tube for opening or closing the first medium channel in the first power tube; A second power source structure is provided on the second sliding part, and each of the second positioning components is connected to the second power source structure through a second power tube. The power medium in the second power source structure can enter the second positioning component along the second medium channel in the second power tube to drive the second main clamp and the second auxiliary clamp to be relatively close to a use state. The second switch is connected to the second power tube for opening or closing the second medium channel in the second power tube.

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