Automatic pipe winding machine for flattening copper pipe

Abstract

The invention belongs to the technical field of copper pipe winding, and particularly relates to a copper pipe flattening automatic pipe winding machine which comprises pipe winding equipment, the pipe winding equipment comprises a base, a supporting plate, a motor, a winding shaft, an electric sliding rail, a sliding block, a guiding block and three guiding shafts, a flattening shaft is arranged above the winding shaft, and the flattening shaft is connected with a side face bearing of the supporting plate; the supporting plate is fixedly installed above the base, the motor is fixedly installed on one side of the supporting plate, the winding shaft is fixedly connected with the output end of the motor, the electric sliding rail is fixedly installed above the base, and the sliding block is slidably connected to the upper portion of the electric sliding rail. The device solves the problems that when an existing pipe winding machine conducts large-scale pipe winding work on copper pipes with different diameters, the distance between a flattening shaft and a winding shaft cannot be rapidly, efficiently and accurately adjusted, so that the pressing force of the copper pipes is insufficient, the compactness after pipe winding is affected, and the pipe winding efficiency is affected.

Description

Technical Field

[0001] The present invention belongs to the technical field of copper tube winding, and particularly relates to an automatic copper tube flattening and winding machine. Background Art

[0002] The automatic winding machine is applied to the refrigeration industry and is a special equipment for flattening and winding copper tubes. Since the diameters of copper tubes are different, in order to ensure the stability of the copper tube after winding, it is necessary to flatten it during winding to improve the winding quality.

[0003] Currently, a flattening shaft is often arranged on the winding machine for flattening copper tubes. During winding, the copper tube is extruded by the flattening shaft. At this time, due to the different diameters of copper tubes, the distance between the flattening shaft and the winding shaft needs to be adjusted each time during winding to be applicable to copper tubes of different diameters. The adjustment methods are relatively complex, or the adjustment accuracy is poor. For a large number of copper tubes with different diameters during winding, the diameter of the copper tube is different each time, and the adjustment is even more troublesome. This phenomenon has become a problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic copper tube flattening and winding machine to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: An automatic copper tube flattening and winding machine, including a winding device. The winding device includes a base, a support plate, a motor, a winding shaft, an electric slide rail, a slider, a guide block, and three guide shafts. A flattening shaft is arranged above the winding shaft, and the flattening shaft is connected to the side of the support plate by a bearing; the support plate is fixedly installed above the base, the motor is fixedly installed on one side of the support plate, and the winding shaft is fixedly connected to the output end of the motor. The electric slide rail is fixedly installed above the base, the slider is slidably connected above the electric slide rail, the three guide shafts and the guide block are all fixed above the slider. An insertion groove is provided on the side of the winding shaft, and the copper tube passes through the three guide shafts and the guide block, and one end is inserted into the insertion groove; the inside of the flattening shaft is hollow, and a size adjustment mechanism is arranged inside. A threaded hole is provided on one side of the flattening shaft, and a threaded rod is threadedly connected in the threaded hole. The threaded rod is connected to the size adjustment mechanism, and a first nut is fixed to the left end of the threaded rod.

[0006] The present invention further illustrates that the size adjustment mechanism includes a sphere, two annular tubes, two connecting rods, and two spherical balls; two sliding holes are provided on the outer side of the flattening shaft, and the inner diameters of the inner and outer ends of the two sliding holes are smaller than the inner diameter of the middle part. The connecting rod is slidably connected in the sliding hole, and the outer end is fixed to the inner side of the annular tube, and the inner end is fixed to the spherical ball. A limiting block is provided on the outer side of the connecting rod, and the limiting block is slidably connected to the middle part of the sliding hole. A spring is provided inside the middle part of the sliding hole, and the spring is located outside the limiting block.

[0007] The present invention further illustrates that both of the two annular tubes are sleeved on the outer side of the flattening shaft and are arranged oppositely; a circular hole is provided in the middle of the flattening shaft, and the sphere is located in the circular hole. After the threaded rod rotates, it contacts the left side of the sphere, and the sphere contacts the spherical ball.

[0008] The present invention further illustrates that a hole is provided on the left side of the sphere, and an arc-shaped block is fixed to the inner wall of the hole. The right end of the threaded rod is spherical, and the spherical part is located in the hole.

[0009] The present invention further illustrates that a through hole is provided in the middle of the threaded rod and the sphere, and a round rod is slidably connected in the through hole. A second nut is fixed to the left end of the round rod, and an arc ball is fixed to the right end. A screw is fixed to the right end of the arc ball. The screw is threadedly connected to a threaded sleeve on the right side of the inner wall of the flattening shaft; the left end of the round rod extends out of the through hole of the threaded rod, and a scale is provided at the left end. The values of the scale are arranged from small to large, and the values correspond to the distance between the outer side of the annular tube and the outer side of the winding shaft, that is, the diameter of the copper tube.

[0010] The present invention further illustrates that a conical groove is provided on the right side of the sphere. The sphere is a complete spherical body composed of two hemispheres, and the two hemispheres are mutually attached; two inner holes are provided inside the sphere, and elastic springs are provided in both of the two inner holes, and the two hemispheres are fixed to each other through the elastic springs.

[0011] The present invention further illustrates that the arc-shaped block is also composed of two semi-circular arc blocks and is respectively fixed on the two hemispherical bodies.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention bends the copper tube by the flattening shaft, thereby performing the tube winding work, and during the tube winding process, the copper tube wound on the reel is flattened or compacted by the flattening shaft, thereby improving the tube winding quality, and the distance between the flattening shaft and the reel is changed by the size adjustment mechanism, so that the tube winding operation can be performed for copper tubes of different sizes, without the need to replace equipment or structure, and the operation is convenient and efficient, and the application range is wide, especially when the diameter of the copper tube is frequently changed, the tube winding efficiency can be greatly improved, and the distance during flattening can be directly adjusted for copper tubes with small diameters, thereby improving the flattening strength, so that the copper tubes with small diameters can also be compacted more tightly, and the tube winding quality is guaranteed, and whether it is a copper tube with large diameter or a copper tube with small diameter, the distance between the ring tube and the reel can be quickly adjusted by rotating the threaded rod to adapt to copper tubes with different diameters;

[0013] After the initial adjustment of the distance between the ring tube and the winding shaft, the copper tube of one of the winding tubes was not fully compacted. This indicates that the adjusted size has met the standard but is about to meet the standard. The operator can rotate the round rod through nut 2 to drive the threaded rod to rotate and move in the threaded sleeve through the arc ball. When the screw moves to the left, it drives the arc ball to move to the left until it is immersed in the conical groove, and the sphere composed of the two hemispheres is spread apart through the conical groove. The adjustment amplitude when the hemispheres are spread apart is lower than that when the threaded rod is rotated, and the adjustment accuracy is higher, which can fully guarantee the quality of the winding tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the arrangement of the copper tube before winding of the present invention;

[0017] Figure 3 It is a schematic diagram of the copper tube after being formed by winding the tube of the present invention;

[0018] Figure 4 is a schematic diagram of a flattening shaft of the present invention;

[0019] Figure 5 It is a schematic diagram of the internal structure of the flattening shaft of the present invention;

[0020] Figure 6 is an exploded view of the flattening shaft of the present invention;

[0021] Figure 7 It is a schematic diagram of the internal structure of the sphere of the present invention;

[0022] Figure 8 It is a schematic diagram of the positional relationship among the threaded rod, round rod and sphere of the present invention;

[0023] Figure 9 It is a schematic diagram of the third embodiment of the present invention;

[0024] Figure 10 It is a schematic diagram of the fifth embodiment of the present invention;

[0025] In the figure: 1. Rewinding shaft; 11. Insertion groove; 2. Flattening shaft; 21. Threaded rod; 211. First nut; 22. Sphere; 221. Arc-shaped block; 222. Conical groove; 23. Ring pipe; 24. Connecting rod; 241. Limiting block; 25. Sphere; 26. Spring; 27. Round hole; 28. Round rod; 281. Second nut; 282. Arc ball; 283. Screw; 284. Threaded sleeve; 29. Elastic spring. Detailed implementation manners

[0026] The technical solution of the present invention will be further described in detail below in conjunction with the preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-10 , the present invention provides a technical solution: a copper tube flattening and automatic winding machine, including a winding device, the winding device includes a base, a support plate, a motor, a rewinding shaft 1, an electric slide rail, a slider, a guide block and three guide shafts. Above the rewinding shaft 1, there is a flattening shaft 2, and the flattening shaft 2 is connected to the side of the support plate by a bearing;

[0028] The support plate is fixedly installed above the base, the motor is fixedly installed on one side of the support plate, and the rewinding shaft 1 is fixedly connected to the output end of the motor. The electric slide rail is fixedly installed above the base, the slider is slidably connected above the electric slide rail, the three guide shafts and the guide block are all fixed above the slider. An insertion groove 11 is opened on the side of the rewinding shaft 1. The copper tube is inserted through the three guide shafts and the guide block, and one end is inserted into the insertion groove 11;

[0029] The inside of the flattening shaft 2 is hollow, and a size adjustment mechanism is arranged inside. A threaded hole is opened on one side of the flattening shaft 2, and a threaded rod 21 is threadedly connected in the threaded hole. The threaded rod 21 is connected to the size adjustment mechanism, and a first nut 211 is fixed at the left end of the threaded rod 21;

[0030] Insert one end of the copper tube into the insertion groove 11, and then place its extended part into the three guide shafts and a guide block, as Figure 2As shown, after the electric slide rail operates, the slider drives the three guide shafts and the guide blocks to move, thereby driving the extension part of the copper tube to move. At the same time, the motor operates, driving the winding shaft 1 to rotate. The winding shaft 1 bends the copper tube, thereby performing the tube winding work. During the tube winding process, the copper tube wound on the winding shaft 1 is flattened or pressed by the flattening shaft 2 to improve the quality of the tube winding;

[0031] When winding copper tubes with different diameters, there is no need to replace the flattening shaft 2. Just rotate the threaded rod 21 through the nut 211, and it will rotate and sink into the flattening shaft 2 through the threaded hole while rotating, thereby driving the size adjustment mechanism to operate, changing the outer diameter of the flattening shaft 2, and thus changing the distance between the flattening shaft 2 and the winding shaft 1. Tube winding operations can be carried out for copper tubes of different sizes without replacing equipment or structures. The operation is convenient and efficient, and the applicable range is wide. Especially when the diameter of the copper tube changes frequently, the efficiency of tube winding can be greatly improved.

[0032] The size adjustment mechanism includes a sphere 22, two annular tubes 23, two connecting rods 24, and two spherical balls 25;

[0033] There are two sliding holes 25 provided on the outer side of the flattening shaft 2, and the inner diameters of the inner and outer ends of the two sliding holes 25 are smaller than the inner diameter of the middle part. The connecting rod 24 is slidably connected in the sliding hole 25, and the outer end is fixed to the inner side of the annular tube 23, and the inner end is fixed to the spherical ball 25. A limiting block 241 is provided on the outer side of the connecting rod 24, and the limiting block 241 is slidably connected to the middle part of the sliding hole 25. A spring 26 is provided inside the middle part of the sliding hole 25, and the spring 26 is located outside the limiting block 241.

[0034] Both of the two annular tubes 23 are sleeved on the outer side of the flattening shaft 2 and are arranged oppositely;

[0035] There is a circular hole 27 provided in the middle of the flattening shaft 2, and the sphere 22 is located in the circular hole 27. After the threaded rod 21 rotates, it contacts the left side of the sphere 22, and the sphere 22 contacts the spherical ball 25;

[0036] Embodiment 1:

[0037] When the diameter of the copper tube becomes smaller, before tube winding at this time, rotate the threaded rod 21 forward, so that it pushes the sphere 22 to move to the right. The sphere 22 moves to the right and contacts the spherical ball 25. The spherical ball 25 jacks up the connecting rod 24, thereby driving the annular tube 23 to expand outward, reducing the distance between the annular tube 23 and the winding shaft 1. At the same time, the spring 26 is pressed and deformed by the limiting block 241. For small-diameter copper tubes, the distance during flattening can be directly adjusted, improving the flattening strength, so that small-diameter copper tubes can also be pressed more tightly, and the quality of tube winding is guaranteed;

[0038] Embodiment 2:

[0039] The diameter of the copper tube becomes larger. Before winding the tube, rotate the threaded rod 21 in the reverse direction. Under the action of the spring 26, the spherical ball 25 pushes the sphere 22 in the reverse direction, causing it to move slowly to the left. At the same time, the annular tube 23 retracts, increasing the distance between the annular tube 23 and the winding shaft 1.

[0040] Whether it is a copper tube with a large diameter or a small diameter, by rotating the threaded rod 21, the distance between the annular tube 23 and the winding shaft 1 can be quickly adjusted to accommodate copper tubes of different diameters.

[0041] A hole is provided on the left side of the sphere 22, and an arc-shaped block 221 is fixed to the inner wall of the hole. The right end of the threaded rod 21 is spherical, and the spherical part is located within the hole.

[0042] By providing the arc-shaped block 221 within the hole, when the spherical part at the right end of the threaded rod 21 smoothly pushes the sphere 22 to move to the right, during the process of adjusting to a large diameter, the spherical ball 25 pushes the sphere 22 to move to the left. After the spring 26 has been operating for a long time and its elasticity has decreased, when the threaded rod 21 continues to rotate in the reverse direction, it can drive the sphere 22 to fully reset through the arc-shaped block 221, so as to properly perform the large-diameter adjustment without the need to frequently replace the spring 26, thereby increasing the service life of the structure.

[0043] A through hole is provided in the middle of the threaded rod 21 and the sphere 22, and a round rod 28 is slidably connected within the through hole. A second nut 281 is fixed to the left end of the round rod 28, and an arc-shaped ball 282 is fixed to the right end. A screw rod 283 is fixed to the right end of the arc-shaped ball 282, and a threaded sleeve 284 is threadedly connected to the right side of the screw rod 283. The threaded sleeve 284 is fixedly installed on the right inner wall of the flattened shaft 2.

[0044] The left end of the round rod 28 extends out of the through hole of the threaded rod 21, and a scale is provided at the left end. The values of the scale are set from small to large, and the values correspond to the distance between the outer side of the annular tube 23 and the outer side of the winding shaft 1, that is, the diameter of the copper tube.

[0045] When the threaded rod 21 moves, the round rod 28 extends out of or retracts into the through hole. By means of the scale exposed at the left end of the round rod 28, the distance between the adjusted annular tube 23 and the winding shaft 1 can be accurately judged, so as to accurately correspond to the diameter of the copper tube and ensure the pressing force.

[0046] A tapered groove 222 is provided on the right side of the sphere 22. The sphere 22 is a complete spherical body composed of two hemispheres, and the two hemispheres are mutually attached.

[0047] Two inner holes are provided inside the sphere 22, and elastic springs 29 are provided in both of the two inner holes, and the two hemispheres are fixed to each other by means of the elastic springs 29.

[0048] Embodiment Three:

[0049] After the preliminary adjustment of the distance between the ring tube 23 and the winding shaft 1, the copper tube is not fully compacted when one of the winding tubes is wound. At this time, it means that the adjusted size is up to standard but will soon be up to standard. The operator can rotate the round rod 28 through the nut 281 to drive the threaded rod 283 to rotate and move in the threaded sleeve 284 through the arc ball 282. When the screw rod 283 moves to the left, it drives the arc ball 282 to move to the left until it is immersed in the tapered groove 222, and the sphere 22 composed of the two hemispheres is spread open through the tapered groove 222. Figure 9 As shown, the adjustment range when the hemisphere is expanded is lower than that when the threaded rod 21 is rotated, and the adjustment accuracy is higher, which can fully guarantee the quality of the winding pipe;

[0050] Embodiment 4:

[0051] The distance between the ring tube 23 and the winding shaft 1 is adjusted by rotating the threaded rod 21. If the diameter standard of the copper tube still cannot be reached after being adjusted to the minimum, the round rod 28 can be rotated by the nut 281 to expand the sphere 22, thereby further reducing the distance between the ring tube 23 and the winding shaft 1. There is no need to replace the flattening shaft 2 and the size adjustment mechanism. A set of flattening shaft 2 and size adjustment mechanism can meet the needs of copper tubes of all sizes, and the scope of application is wider.

[0052] The arc block 221 is also composed of two semicircular arc blocks, and is respectively fixed on two hemispheres;

[0053] Embodiment five:

[0054] After the ball 25 reaches the middle position of the sphere 22, the distance between the ring tube 23 and the winding shaft 1 is adjusted to the minimum. At this time, the copper tube with a larger diameter is replaced. The operator forgets to rotate forward or reverse, and does not pay attention to the scale. At this time, whether it is rotated forward or reverse, the distance between the ring tube 23 and the winding shaft 1 can be increased. When the threaded rod 21 continues to rotate forward, the ball 25 is located at the upper left corner of the ball 22, such as Figure 10 As shown, when the continuous rotation of the threaded rod 21 causes the distance between the ring tube 23 and the winding shaft 1 to be too large, the threaded rod 21 can be directly rotated in the opposite direction. At this time, the sphere 22 is supported by the round ball 25 and remains stationary. The spherical part at the right end of the threaded rod 21 contacts the arc block 221 and squeezes the arc block 221 to spread the two hemispheres apart, so as to relatively reduce the distance between the ring tube 23 and the winding shaft 1, making the adjustment more convenient and quicker. When the adjustment is completed, if it needs to be reset, the round rod 28 can be rotated to push the sphere 22 to reset through the arc ball 282.

[0055] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0056] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic copper tube flattening and winding machine, including a winding device, characterized in that: The pipe winding device includes a base, a support plate, a motor, a winding shaft (1), an electric slide rail, a slider, a guide block and three guide shafts. Above the winding shaft (1), a flattening shaft (2) is arranged, and the flattening shaft (2) is connected to the side of the support plate through a bearing; The support plate is fixedly installed above the base. The motor is fixedly installed on one side of the support plate, and the winding shaft (1) is fixedly connected to the output end of the motor. The electric slide rail is fixedly installed above the base. The slider is slidably connected above the electric slide rail. The three guide shafts and the guide block are all fixed above the slider. An insertion groove (11) is formed on the side of the winding shaft (1). The copper pipe is inserted through the three guide shafts and the guide block, and one end is inserted into the insertion groove (11); The inside of the flattening shaft (2) is hollow, and a size adjusting mechanism is arranged inside. A threaded hole is formed on one side of the flattening shaft (2), and a threaded rod (21) is threadedly connected in the threaded hole. The threaded rod (21) is connected to the size adjusting mechanism, and a first nut (211) is fixed to the left end of the threaded rod (21).

2. The automatic copper tube flattening and winding machine according to claim 1, wherein: The size adjusting mechanism includes a sphere (22), two annular pipes (23), two connecting rods (24) and two spherical balls (25); Two sliding holes (25) are arranged on the outer side of the flattening shaft (2). The inner diameters of the inner and outer ends of the two sliding holes (25) are smaller than the inner diameter of the middle part. The connecting rod (24) is slidably connected in the sliding hole (25), and the outer end is fixedly connected to the inner side of the annular pipe (23), and the inner end is fixedly connected to the spherical ball (25). A limiting block (241) is arranged on the outer side of the connecting rod (24), and the limiting block (241) is slidably connected to the middle part of the sliding hole (25). A spring (26) is arranged inside the middle part of the sliding hole (25), and the spring (26) is located outside the limiting block (241).

3. The automatic copper tube flattening and winding machine according to claim 2, wherein: Both of the two annular pipes (23) are sleeved on the outer side of the flattening shaft (2) and are arranged oppositely; A round hole (27) is arranged in the middle of the flattening shaft (2), and the sphere (22) is located in the round hole (27). After the threaded rod (21) rotates, it contacts the left side of the sphere (22), and the sphere (22) contacts the spherical ball (25).

4. The automatic copper tube flattening and winding machine according to claim 3, characterized in that: A hole is formed on the left side of the sphere (22), and an arc-shaped block (221) is fixed to the inner wall of the hole. The right end of the threaded rod (21) is spherical, and the spherical part is located in the hole.

5. The automatic copper tube flattening and winding machine according to claim 4, wherein: A through hole is arranged in the middle of the threaded rod (21) and the sphere (22), and a round rod (28) is slidably connected in the through hole. A second nut (281) is fixed to the left end of the round rod (28), and an arc-shaped ball (282) is fixed to the right end. A screw rod (283) is fixed to the right end of the arc-shaped ball (282). The screw rod (283) is threadedly connected to a threaded sleeve (284) on the right side of the inner wall of the flattening shaft (2); The left end of the round rod (28) extends out of the through hole of the threaded rod (21), and a scale is provided at the left end. The values of the scale are set from small to large, and the values correspond to the distance between the outer side of the annular tube (23) and the outer side of the winding shaft (1), that is, the diameter of the copper tube.

6. The automatic copper tube flattening and winding machine according to claim 5, wherein: A tapered groove (222) is formed on the right side of the sphere (22). The sphere (22) is a complete spherical body composed of two hemispheres, and the two hemispheres are in mutual contact. Two inner holes are provided inside the sphere (22), and elastic springs (29) are arranged in both of the two inner holes, and the two hemispheres are fixed to each other through the elastic springs (29).

7. An automatic copper tube flattening and winding machine according to claim 6, characterized in that: The arc-shaped block (221) is also composed of two semi-circular arc blocks, and is respectively fixed on the two hemispheres.

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