A pipe feeding mechanism and a pipe winding machine having the same

Abstract

A pipe feeding mechanism and a pipe winding machine with the pipe feeding mechanism, the pipe feeding mechanism comprising: a base; a first rotating arm, one end of which is arranged on the base in a manner that can rotate up and down about a first axis extending horizontally, the other end of which is a first free end, and the extending direction of the first axis is defined as a left-right direction; a second rotating arm, a first end of which is arranged on the first free end of the first rotating arm in a manner that can rotate up and down about a second axis extending along the left-right direction, a second end of which is a second free end opposite to the first rotating arm and is provided with a through hole extending front to back, so that a pipe can pass through; a driving mechanism, an output end of which acts on the first rotating arm to drive the first rotating arm to rotate up and down; and a rotating mechanism, an output end of which acts on the second rotating arm to drive the second rotating arm to rotate up and down. Compared with the prior art, the pipe feeding angle can be adjusted.

Description

Technical Field

[0001] This invention belongs to the field of heat exchanger tube winding technology, specifically relating to a tube feeding mechanism and a tube winding machine having the tube feeding mechanism. Background Technology

[0002] Existing tube feeding devices, such as the structure disclosed in Chinese Utility Model Patent No. 201420698270.X, "A Tube Feeding Device for Tube Winding" (Authorization Announcement No. CN204355890U), include a base with wheels. The base is connected to a guide rod set on a tube winding operation platform via a guide mechanism. The base is equipped with a drive mechanism that drives the base to reciprocate along the guide rod. The base is equipped with a lifting mechanism. The lifting mechanism is equipped with a support seat. The support seat is equipped with a roller for supporting the tube winding. A radial adjustment mechanism for adjusting the tube inlet angle is also provided between the roller and the support seat. A fine adjustment mechanism for adjusting the position of the support seat along the length direction of the guide rod is also provided between the lifting mechanism and the support seat.

[0003] The aforementioned utility model patent uses a radial adjustment mechanism to adjust the inlet pipe angle. This mechanism includes two support plates arranged parallel to each other on a support base. Each support plate has corresponding sliding holes at both ends. The central shafts of the two support rollers pass through the sliding holes on the two support plates and are positioned by nuts. Each central shaft can move within its respective sliding hole. Thus, the inlet pipe angle is adjusted by regulating the position of the central shafts of each support roller within their sliding holes. Summary of the Invention

[0004] The first technical problem to be solved by the present invention is to provide a tube feeding mechanism that can also adjust the tube feeding angle, in light of the current state of the prior art.

[0005] The second technical problem to be solved by the present invention is to provide a tube feeding mechanism so that the fed tube can be tightly wound around the core.

[0006] The third technical problem to be solved by the present invention is to provide a tube winding machine having the above-mentioned tube feeding mechanism.

[0007] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a tube feeding mechanism, comprising:

[0008] Base;

[0009] Its characteristic is that it also includes:

[0010] The first rotating arm has one end mounted on the base so that it can rotate up and down around a horizontally extending first axis, and the other end is the first free end. The direction of extension of the first axis is defined as the left and right direction.

[0011] The second rotating arm has its first end mounted on the first free end of the first rotating arm in a manner that allows it to rotate up and down around a second axis extending in the left and right direction. Its second end is a second free end that is relatively far away from the first rotating arm and has a through hole that runs through the front and back for the pipe to pass through.

[0012] The drive mechanism, whose output end acts on the first rotating arm, drives the first rotating arm to rotate up and down;

[0013] The rotating mechanism has its output end acting on the second rotating arm to drive the second rotating arm to rotate up and down.

[0014] Thus, when the tube feeding angle needs to be adjusted, the first rotating arm can be rotated first to adjust the overall angle of the first and second rotating arms, and then the second rotating arm can be rotated for fine-tuning so that the tube feeding angle meets the tube winding requirements. In other words, the present invention can adjust the tube feeding angle more precisely through two-stage adjustment.

[0015] Preferably, the first rotating arm and the second rotating arm have a first state in which they are arranged in a straight line and a second state in which they are arranged at an obtuse angle.

[0016] Preferably, the length of the first rotating arm is less than the length of the second rotating arm, so as to make the overall system more stable during pipe feeding.

[0017] To allow adjustment of the angle of the second rotating arm, the rotating mechanism further includes a turbine mounted on the first free end of the first rotating arm via a rotating shaft extending laterally, a worm gear meshing with the turbine, and a handwheel for driving the worm gear to rotate. The first end of the second rotating arm is constrained to the turbine. Thus, the second rotating arm can be driven to rotate by turning the handwheel, facilitating operation.

[0018] In the above embodiments, preferably, a pipe feeding device is further included, the pipe feeding device comprising:

[0019] The base is located on the second rotating arm and at the rear side of the perforation;

[0020] The tube feeder has a central axis extending to the left and right and an annular wall surrounding the central axis in the circumferential direction. The tube feeder is mounted on a base in a manner that allows it to rotate about its central axis. The annular wall is used to support the aforementioned tube extending forward and backward.

[0021] The power mechanism is used to drive the tube forward and through the perforation of the second rotating arm.

[0022] To further address the second technical problem mentioned above, preferably, the pipe feeding device further includes a damping component located on the base, in front of the pipe feeding wheel, and has a channel through which the pipe passes. The damping component is arranged to generate a damping force when the pipe passes through the channel, thereby limiting the forward movement of the pipe.

[0023] Thus, during the tube winding operation, the forward-moving tube is subjected to the damping force generated by the damping component, which will cause it to tend to tighten backward, thereby allowing the wound tube to be tightly wound on the core.

[0024] Preferably, the damping component includes:

[0025] The roller has a central axis extending to the left and right and a peripheral wall surrounding the outer periphery of the central axis. There are two rollers, which are respectively arranged one above the other on both sides of the tube in a manner that allows them to rotate around their respective central axes, and the peripheral walls of the two rollers face each other to form the aforementioned channel.

[0026] A damping element acts on at least one of the rollers to limit the roller's rotation as the tube moves.

[0027] Furthermore, the first end of the second rotating arm is provided with an extension arm that extends to the left and right, and the base of the tube feeding device is provided on the extension arm in a manner that allows it to move left and right.

[0028] The second end of the second rotating arm is provided with a perforated seat with the aforementioned perforation that can move left and right.

[0029] Furthermore, there are at least two sets of the tube feeding device, which are spaced apart on the extension arm in the left-right direction;

[0030] The number of perforated seats with perforations on the second end of the second rotating arm matches the number of pipe feeding devices and is arranged at intervals in the left-right direction.

[0031] Thus, at least two tubes can pass through their respective tube feeding devices and perforations and then be wound onto the core. The interval between each set of tube feeding devices and the interval between each perforation can be adjusted according to the tube winding interval.

[0032] The technical solution adopted by the present invention to solve the third technical problem mentioned above is: a tube winding machine, characterized by having a tube feeding mechanism as described above.

[0033] Compared with the prior art, the advantages of the present invention are as follows: by setting a first rotating arm, a second rotating arm and a driving mechanism, when it is necessary to adjust the tube feeding angle, the first rotating arm can be rotated first to adjust the overall angle of the first rotating arm and the second rotating arm, and then the second rotating arm can be rotated for fine adjustment so that the tube feeding angle meets the tube winding requirements. In other words, the present invention can adjust the tube feeding angle more precisely through two-stage adjustment. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the tube winding machine according to an embodiment of the present invention;

[0035] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0036] Figure 3 This is a schematic diagram of the tube winding machine from another perspective according to an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the tube winding machine from another perspective according to an embodiment of the present invention;

[0038] Figure 5 This is a cross-sectional view of the tube winding machine according to an embodiment of the present invention;

[0039] Figure 6 This is a schematic diagram of the structure of the damping component according to an embodiment of the present invention;

[0040] Figure 7 This is a cross-sectional view of the damping component according to an embodiment of the present invention. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0042] like Figures 1-7 As shown, this is a preferred embodiment of a tube feeding mechanism and a tube winding machine having the tube feeding mechanism of the present invention. The tube winding machine includes a tube feeding device 100, a base 200, a support arm 300, a winding disc 400, and a support column 600.

[0043] The base 200 includes a body 210 and a turntable 220. The bottom of the body 210 is equipped with wheels 211 and a second power component for driving the wheels 211 to rotate. The turntable 220 is positioned at the center of the body 210 so as to rotate around its own vertically extending axis. A first power component 230 is provided, whose output end acts on the turntable 220 to drive its rotation. The first power component 230 can be a motor that drives the turntable 220 to rotate via a conventional reduction mechanism such as a gear set. Similarly, the second power component can be a conventional walking motor. Since these are all existing power components, they will not be described in detail here.

[0044] The aforementioned support column 600 is mounted on the turntable 220 and extends upward at an angle from the turntable 220, with the angle being backward.

[0045] The pipe winding disc 400 is mounted on the central rotating shaft 410 and has a bearing wall 420 that surrounds the outer periphery of the central rotating shaft 410 in a circumferential direction for the pipe 500 to be wound around in a circumferential direction. The pipe winding disc 400 is disposed at the upper end of the support column 600 in a manner that allows it to rotate about the aforementioned central rotating shaft 410 which extends to the left and right.

[0046] The aforementioned support arm 300 is mounted on the turntable 220 and extends forward from the lower end of the support column 600 of the turntable 220. The front end of the support arm 300 has a through hole 321 for the pipe 500 to pass through. The rear end of the support arm 300 is mounted on the turntable 220 in a manner that allows it to rotate up and down around a first axis L1 extending laterally. In this embodiment, the support arm 300 includes a first rotating arm 310 and a second rotating arm 320. One end of the first rotating arm 310 is mounted on the turntable 220 in a manner that allows it to rotate up and down around the first axis L1, and the other end is a first free end extending forward. The first end of the second rotating arm 320 is mounted on the first free end of the first rotating arm 310 in a manner that allows it to rotate up and down around a second axis L2 extending laterally, and the second end is a second free end extending forward and has the aforementioned through hole 321. The first rotating arm 310 and the second rotating arm 320 have a first state in which they are arranged in a straight line and a second state in which they are arranged at an obtuse angle. The specific state can be adjusted according to the required pipe feeding angle. The length of the first rotating arm 310 is less than the length of the second rotating arm 320, which makes the overall structure stable. Moreover, this design allows the longer second rotating arm 320 to have a greater adjustment range for the perforation on its free end when adjusting to the same angle, making it easier to meet adjustment needs.

[0047] like Figure 5 As shown, in order to drive the first rotating arm 310 and the second rotating arm 320 to rotate, a drive mechanism 330 and a rotating mechanism 340 are also provided. The drive mechanism 330 is an existing electric cylinder or hydraulic cylinder, etc., and its output end acts on the first rotating arm 310 to drive the first rotating arm 310 to rotate up and down. The rotating mechanism 340 has a turbine 342 mounted on the first free end of the first rotating arm 310 via a rotating shaft 341 extending to the left and right, a worm gear 343 meshing with the turbine 342, and a handwheel 344 for driving the worm gear 343 to rotate. The first end of the second rotating arm 320 is constrained to the turbine 342 so that the second rotating arm 320 can rotate together with the turbine 342. Thus, the first rotating arm 310 can be driven to rotate via the drive mechanism 330 (the second rotating arm 320 rotates together with the first rotating arm 310), and the second rotating arm 320 can be driven to rotate independently by turning the handwheel 344, which is convenient for operation. Furthermore, this worm gear transmission method in this location meets the requirements of miniaturization and portability, while also featuring high transmission precision and efficiency. Of course, those skilled in the art understand that the drive mechanism 330 can also be designed as a worm gear; and the rotating mechanism 340 can also be driven by an electric cylinder or a hydraulic cylinder.

[0048] To improve winding efficiency, the second end of the second rotating arm 320 is provided with a perforation seat 360 containing the aforementioned perforation 321, which can move left and right. There are two perforation seats 360, arranged one on the left and one on the right (that is, two tubes can be wound simultaneously; of course, the number of perforation seats 360 with perforations 321 can be increased if needed). The first end of the second rotating arm 320 is provided with an extension arm 350 extending left and right. The number of tube feeding devices 100 matches the number of perforation seats 360, that is, in this embodiment, there are also two sets of tube feeding devices 100, which are spaced apart on the extension arm 350, one on the left and one on the right, so as to drive the corresponding tube 500 forward.

[0049] Each pipe feeding device 100 includes a base 110, a pipe feeding wheel 120, a power mechanism 130, a damping component 140, a second telescopic power component 150, and a straightening component 160.

[0050] The base 110 is mounted on the extension arm 350 in a manner that allows it to move left and right.

[0051] The tube feed roller 120 has a left-right extending central axis and an annular wall 121 circumferentially surrounding the central axis. The tube feed roller 120 is mounted on the base 110 in a manner that allows it to rotate about its central axis. The annular wall 121 is used to support the tube 500 extending forward and backward. In this embodiment, there are two sets of tube feed rollers 120, arranged opposite each other on the upper and lower sides of the tube 500. The annular walls 121 of the two sets of tube feed rollers 120 are opposite each other to form a gap for the tube 500 to pass through. The aforementioned power mechanism 130 (which is a conventional mechanism such as a motor) acts on the first set of tube feed rollers located above the tube to drive the first set of tube feed rollers to rotate, thereby driving the tube 500 to move forward and pass through the through hole 321 of the second rotating arm 320. The second set of tube feed rollers located below the tube is a driven roller that rotates with the movement of the tube 500. The output end of the aforementioned second telescopic power member 150 acts on the first set of tube feed rollers to drive the first set of tube feed rollers to move relative to or away from the second set of tube feed rollers. Before starting the pipe winding process, the first set of pipe-feeding wheels can be moved away from the second set of pipe-feeding wheels. Then, the pipe is passed between the two sets of pipe-feeding wheels. Next, the first set of pipe-feeding wheels is moved closer to the second set of pipe-feeding wheels, simplifying the operation. Furthermore, by adjusting the distance between the two sets of pipe-feeding wheels, the external force exerted on the pipe 500 can be adjusted to better drive the pipe 500's movement. Please refer to [link to details]. Figure 2 , 3 .

[0052] like Figure 2 , 3As shown in Figures 6 and 7, the damping assembly 140 is located on the base 110, in front of the tube feed wheel 120, and has a channel 141 through which the tube 500 passes. The damping assembly 140 is arranged to generate a damping force when the tube 500 passes through the channel, thereby limiting the forward movement of the tube 500. In this embodiment, the damping assembly 140 includes a roller 142 and a damping element 144. The roller 142 has a left-right extending central axis and a peripheral wall 143 surrounding the outer periphery of the central axis. There are two rollers 142, which are respectively arranged one above the other on both sides of the tube 500 so as to be able to rotate around their respective central axes. The peripheral walls 143 of the two rollers 142 are opposite to each other to form the aforementioned channel 141. The damping element 144 is preferably a magnetic powder clutch (other existing damping structures can also be used), and acts on the roller 142 located below the tube 500 to limit the rotation of the roller 142 as the tube 500 moves.

[0053] The aforementioned straightening assembly 160 is located on the base 110, behind the tube feed wheel 120, and has a straightening hole 161 through which the tube 500 passes. There are two sets of straightening assemblies 160, arranged one in front of the other. The straightening assembly 160 in this embodiment is a conventional design and will not be described in detail here.

[0054] In this embodiment, the two sets of pipe feeding devices 100 have the same structure and are arranged symmetrically with the front and rear extending axes as the center. Figure 3 In order to show the enlarged portion of the power mechanism 130 and the second telescopic power member 150, the outer shell covering the power mechanism 130 and the second telescopic power member 150 is omitted.

[0055] During the winding process, the tube 500 output from the winding disc 400 passes sequentially through the straightening assembly 160, the tube feeding wheel 120, the damping assembly 140, and the through hole 321 on the second rotating arm 320 before being wound onto the core. The tube feeding wheel 120 can drive the tube 500 to move forward, and the damping assembly 140 can provide the tube 500 with a backward tension force, so that the tube 500 can be tightly wound onto the core.

[0056] The specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for ease of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A delivery mechanism, comprising: Base (200); Its features are: The base (200) includes a body (210) and a turntable (220). The bottom of the body (210) is provided with a walking wheel (211) and a second power component for driving the walking wheel (211) to rotate. The turntable (220) is located in the center of the body (210) in a manner that allows it to rotate about its own vertically extending axis. A first power component (230) is provided, the output end of which acts on the turntable (220) to drive the turntable (220) to rotate. The delivery mechanism also includes: The first rotating arm (310) is mounted on the turntable (220) of the base (200) at one end so as to be able to rotate up and down around the horizontally extending first axis (L1), and the other end is the first free end. The extension direction of the first axis (L1) is defined as the left and right direction. The second rotating arm (320) has its first end mounted on the first free end of the first rotating arm (310) in a manner that allows it to rotate up and down around the second axis (L2) extending in the left and right direction. Its second end is a second free end that is relatively far away from the first rotating arm (310) and has a through hole (321) that runs through the front and back for the tube (500) to pass through. The drive mechanism (330) has its output end acting on the first rotating arm (310) to drive the first rotating arm (310) to rotate up and down; The rotating mechanism (340) has its output end acting on the second rotating arm (320) to drive the second rotating arm (320) to rotate up and down; It also includes a pipe feeding device (100), which includes: The base (110) is disposed on the second rotating arm (320) and located behind the through hole (321); The tube feeder (120) has a central axis extending to the left and right and an annular wall (121) surrounding the outer periphery of the central axis in the circumferential direction. The tube feeder (120) is mounted on a base (110) in a manner that allows it to rotate about its central axis. The annular wall (121) is used to support the aforementioned tube (500) extending forward and backward. A power mechanism (130) is used to drive the tube (500) forward and through the perforation (321) of the second rotating arm (320); The pipe feeding device (100) further includes a damping assembly (140) disposed on the base (110) in front of the pipe feeding wheel (120). The damping assembly (140) has a channel (141) through which the pipe (500) passes, and the damping assembly (140) is arranged to generate a damping force when the pipe (500) passes through the channel (141) to limit the forward movement of the pipe (500).

2. The tube feeding mechanism according to claim 1, characterized in that: The first rotating arm (310) and the second rotating arm (320) have a first state in which they are arranged in a straight line and a second state in which they are arranged at an obtuse angle.

3. The tube feeding mechanism according to claim 1, characterized in that: The length of the first rotating arm (310) is less than the length of the second rotating arm (320).

4. The tube feeding mechanism according to claim 1, characterized in that: The rotating mechanism (340) includes a worm gear (342) mounted on the first free end of the first rotating arm (310) via a rotating shaft (341) extending to the left and right, a worm (343) meshing with the worm gear (342), and a handwheel (344) for driving the worm (343) to rotate. The first end of the second rotating arm (320) is constrained to the worm gear (342).

5. The tube feeding mechanism according to any one of claims 1 to 4, characterized in that: The damping component (140) includes: The roller (142) has a central axis extending to the left and right and a peripheral wall (143) surrounding the outer periphery of the central axis. There are two rollers (142), which are respectively arranged one above the other on both sides of the tube (500) in a way that they can rotate around their respective central axes, and the peripheral walls (143) of the two rollers (142) face each other to form the aforementioned channel (141). A damping element (144) acts on at least one of the rollers (142) to limit the rotation of the roller (142) as the tube (500) moves.

6. The tube feeding mechanism according to any one of claims 1 to 4, characterized in that: The first end of the second rotating arm (320) is provided with an extension arm (350) that extends to the left and right. The base (110) of the pipe feeding device (100) is provided on the extension arm (350) in a manner that allows it to move left and right. The second end of the second rotating arm (320) is provided with a perforated seat (360) with the aforementioned perforation (321) that can move left and right.

7. The tube feeding mechanism according to claim 6, characterized in that: There are at least two sets of the tube feeding device (100), which are spaced apart on the extension arm (350) in the left-right direction; The number of perforated seats (360) with perforations (321) on the second end of the second rotating arm (320) matches the number of pipe feeding devices (100) and are arranged at intervals in the left-right direction.

8. A tube winding machine, characterized in that... It has a delivery mechanism as described in any one of claims 1 to 7.

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