Automatic pipe feeding device and straightening device

Abstract

The invention discloses an automatic pipe feeding device and a straightening device, and belongs to the technical field of pipe straightening, the automatic pipe feeding device comprises a bottom plate, a feeding frame is fixedly mounted on the left portion of the upper end of the bottom plate, a stock bin is fixedly connected to the upper end of the feeding frame, a feeding mechanism is arranged on the feeding frame, and a frame is fixedly connected to the middle of the upper end of the bottom plate; an auxiliary feeding mechanism is arranged on the frame, a feeding frame is fixedly connected to the left portion of the upper end of the bottom plate, and a belt wheel is installed in the feeding frame through a bearing. The conveying belt, the push plate, the blocking frame and other structures are additionally arranged on the feeding frame, in the using process, the pipe fittings can be pushed out from the interior of the stock bin through the push plate, fall onto the conveying belt, then are conveyed through the conveying belt and are blocked by the blocking frame, and therefore the pipe fittings can be conveyed conveniently. Intermittent feeding can be achieved through sliding connection between the cam and the supporting frame, and therefore feeding blockage can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe straightening, and more particularly to an automatic pipe feeding device and a straightening device. Background Art

[0002] In the process of processing the pipe, it is necessary to straighten the processed pipe. In the process, the straightening device can be fed by the feeding device, and then the pipe is straightened by the straightening device. The invention patent with the publication number CN115194035A discloses a pipe feeding device and a pipe straightening device. The pipe feeding device includes a discharge mechanism. The discharge mechanism is a matching structure of a first inclined channel, a second inclined channel and a pipe lifting assembly, so that the pipes fed by the pipe feeding device can be discharged from the discharge port of the discharge mechanism one by one, which is convenient for the subsequent processing of the pipes one by one; in addition, by setting a conveying mechanism, the pipe can be automatically fed into the pipe inlet of the pipe straightening device with the long direction as the feeding direction. Furthermore, the patent realizes the automatic feeding of pipes one by one and completes the straightening process by integrating the pipe straightening device with the pipe feeding device; the patent has a clever structure and good scalability.

[0003] However, when the feeding device in the prior art feeds the pipe, the pipe has a certain curvature, which makes it difficult for the pipe to roll and easily causes the pipe to stay outside the loading rack, resulting in ineffective feeding. In addition, when feeding the pipe into the straightening device, the pipe needs a certain insertion force, and the insertion force is too low, which makes it inconvenient to feed the pipe. Therefore, improvements are needed. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide an automatic pipe feeding device and a straightening device, which can solve the problems that pipe feeding is easy to get stuck and it is inconvenient to feed the pipe into the straightening device.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] A pipe automatic feeding device comprises a base plate, a loading rack is fixedly installed on the upper left part of the base plate, a material bin is fixedly connected to the upper end of the loading rack, a loading mechanism is arranged on the loading rack, a frame is fixedly connected to the middle part of the upper end of the base plate, an auxiliary feeding mechanism is arranged on the frame, a feeding rack is fixedly connected to the upper left part of the base plate, a plurality of pulleys are installed inside the feeding rack through bearings, a feeding belt is sleeved on the outer side of the pulley, a motor 1 is fixedly installed on the front left part of the feeding rack, and the output shaft of the motor 1 is fixedly connected to one of the pulleys.

[0007] As a preferred solution of an automatic pipe feeding device of the present invention, the feeding mechanism includes a plurality of driving rollers rotatably mounted on a feeding frame through bearings, a conveyor belt is sleeved on the outer side of the driving roller, a motor 2 is fixedly mounted on the outer side of the feeding frame, an eccentric wheel is fixedly connected to the outer side of the left end connecting shaft of the driving roller below the silo, an eccentric connecting shaft is installed at the non-center of the eccentric wheel, a rocker arm is installed through a bearing on the eccentric connecting shaft, a pull rod is hinged on the outer side of the rocker arm, a push plate is slidably connected to the inside of the silo, a guide frame is fixedly connected to the upper end of the feeding frame, two symmetrically distributed guide pins are fixedly connected to the upper end of the plane of the guide frame, a baffle is slidably connected to the outer side of the guide pin, the left and right ends of the baffle are fixedly connected to a support frame, a spring 1 is arranged on the outer side of the guide pin, and a cam is fixedly connected to the left and right ends of the driving roller located below the support frame. As a preferred solution of an automatic pipe feeding device of the present invention, the output shaft of the motor 2 is fixedly connected to one of the driving rollers, and the pull rod is hinged to the push plate.

[0008] As a preferred solution of the automatic pipe feeding device of the present invention, the lower end of the silo is fixedly connected to two symmetrically distributed guide frames, the outer side of the guide frame is slidably connected to a guide sleeve, the guide sleeve is fixedly connected to the push plate, and the baffle is slidably connected to the guide frame.

[0009] As a preferred solution of the automatic pipe feeding device of the present invention, brackets are fixedly connected to the left and right ends of the loading rack, the brackets are connected to the cam through bearings, the cam is slidably connected to the support frame, one end of the spring one is fixedly connected to the baffle frame, and the other end of the spring one is fixedly connected to the guide pin.

[0010] As a preferred solution of the automatic pipe feeding device of the present invention, the auxiliary feeding mechanism includes a guide rod frame, two guide rod frames symmetrically distributed front and back are fixedly connected to the outer side of the frame, a wheel frame is slidably connected to the outer side of the guide rod frame, a rotating shaft is installed inside the wheel frame through a bearing, a driving wheel is fixedly connected to the middle part of the outer side of the rotating shaft, a motor three is fixedly connected to the outer side of the wheel frame located on the front side of the frame, a spring two is arranged on the outer side of the rod member of the guide rod frame, an adjusting frame is slidably connected to the upper part of the outer side of the rod member of the guide rod frame, a screw is installed on the upper end of the adjusting frame through a bearing, a knob is fixedly connected to the lower part of the outer side of the screw, and an internally threaded tube is fixedly connected to the inner side of the upper end of the guide rod frame.

[0011] As a preferred solution of the automatic pipe feeding device of the present invention, the output shaft of the motor three is fixedly connected to the rotating shaft, the wheel frame is slidably connected to the frame, the screw is threadedly connected to the internal threaded tube, one end of the spring two is fixedly connected to the adjusting frame, the other end of the spring two is fixedly connected to the wheel frame, the adjusting frame is slidably connected to the frame, the upper ends of the two screws are fixedly connected to synchronous wheels, and the outer sides of the two synchronous wheels are jointly sleeved with a synchronous belt.

[0012] As a preferred solution of the automatic pipe feeding device of the present invention, the loading mechanism is located directly above the feeding rack, and the auxiliary feeding mechanism is located above the feeding belt.

[0013] As a preferred solution of the automatic pipe feeding device of the present invention, the upper end of the base plate is fixedly connected to a mounting frame, and the upper end of the mounting frame is fixedly connected to a conical cover.

[0014] A pipe straightening device includes a straightening box and the above-mentioned automatic pipe feeding device, wherein the upper end of the base plate is fixedly connected to the straightening box, the left end of the straightening box is fixedly connected to a feed port, the right end of the straightening box is fixedly connected to a discharge port, and the feed port is fixedly connected to the conical cover.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) In the present invention, by adding structures such as a conveyor belt, a push plate and a baffle frame to the loading rack, the pipe fittings can be pushed out from the inside of the silo by the push plate during use, and the pipe fittings fall on the top of the conveyor belt. The pipe fittings are then transported by the conveyor belt and blocked by the baffle frame. Intermittent feeding can be achieved through the sliding connection between the cam and the support frame, thereby effectively avoiding loading jams.

[0017] (2) In the present invention, by adding structures such as a screw, a driving roller and a rotating shaft to the frame, during use, the elastic force of spring 2 can drive the driving roller to squeeze the outside of the pipe fitting and squeeze the pipe fitting above the feed belt, so that the feeding force can be applied to the pipe fitting at the same time by the driving roller and the feed belt, which can make feeding more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the present invention is three-dimensional Figure 1 ;

[0019] Figure 2 The overall structure of the present invention is three-dimensional Figure 2 ;

[0020] Figure 3 For the present invention Figure 1 A partially cutaway stereogram of

[0021] Figure 4 For the present invention Figure 1 A three-dimensional enlarged view of the feed rack;

[0022] Figure 5 For the present invention Figure 1 A three-dimensional enlarged view of the frame;

[0023] Figure 6 For the present invention Figure 1 A three-dimensional diagram of a guide frame;

[0024] Figure 7 For the present invention Figure 1 A magnified view of the structure at A;

[0025] Figure 8 For the present invention Figure 2 A magnified view of the structure at B;

[0026] Fig. 9 For the present invention Figure 3 Enlarged view of the structure at location C.

[0027] Description of the numbers in the figure:

[0028] 1. Bottom plate; 2. Loading rack; 3. Bin; 4. Loading mechanism; 5. Frame; 6. Auxiliary feeding mechanism; 7. Feeding rack; 8. Pulley; 9. Feeding belt; 10. Straightening box; 11. Feeding port; 12. Discharging port; 13. Mounting rack; 14. Conical cover; 15. Motor 1; 41. Driving roller; 42. Conveyor belt; 43. Motor 2; 44. Eccentric wheel; 45. Rocker arm; 46. Pull rod; 47. Push plate; 48. Guide frame; 49, guide sleeve; 40, guide frame; 401, guide pin; 402, stop frame; 403, support frame; 404, spring one; 405, bracket; 406, cam; 61, guide rod frame; 62, wheel frame; 63, rotating shaft; 64, driving wheel; 65, motor three; 66, spring two; 67, adjustment frame; 68, screw; 69, internal threaded tube; 60, knob; 601, synchronous wheel; 602, synchronous belt. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 indirectly connected 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.

[0032] Example:

[0033] See also Figure 1-9 A pipe automatic feeding device comprises a base plate 1, a loading rack 2 is fixedly installed on the upper left part of the base plate 1, a silo 3 is fixedly connected to the upper end of the loading rack 2, a loading mechanism 4 is arranged on the loading rack 2, a frame 5 is fixedly connected to the middle part of the upper end of the base plate 1, an auxiliary feeding mechanism 6 is arranged on the frame 5, a feeding rack 7 is fixedly connected to the upper left part of the base plate 1, a plurality of pulleys 8 are installed inside the feeding rack 7 through bearings, a feeding belt 9 is sleeved on the outer side of the pulley 8, a motor 15 is fixedly installed on the left front part of the feeding rack 7, and the output shaft of the motor 15 is fixedly connected to one of the pulleys 8.

[0034] In this embodiment, the motor 15 can drive the feed belt 9 to rotate via the pulley 8.

[0035] For details, please refer to Figure 1-9The feeding mechanism 4 includes a plurality of driving rollers 41 rotatably mounted on the feeding frame 2 through bearings, a conveyor belt 42 is sleeved on the outer side of the driving roller 41, a motor 2 43 is fixedly mounted on the outer side of the feeding frame 2, an eccentric wheel 44 is fixedly connected to the outer side of the left end connecting shaft of the driving roller 41 below the silo 3, an eccentric connecting shaft is installed at the non-center of the eccentric wheel 44, a rocker arm 45 is installed on the eccentric connecting shaft through a bearing, a pull rod 46 is hinged on the outer side of the rocker arm 45, a push plate 47 is slidably connected to the inside of the silo 3, a guide frame 40 is fixedly connected to the feeding frame 2, two symmetrically distributed guide pins 401 are fixedly connected to the upper end of the plane of the guide frame 40, a blocking frame 402 is slidably connected to the outer side of the guide pin 401, the left and right ends of the blocking frame 402 are fixedly connected to the support frame 403, a spring 1 404 is arranged on the outer side of the guide pin 401, and the left and right ends of the driving roller 41 below the support frame 403 are fixedly connected to the cam 406.

[0036] In this embodiment, motor 2 43 drives the driving roller 41 to rotate, and the driving roller 41 drives the conveyor belt 42 to rotate. The driving roller 41 located below the silo 3 can drive the eccentric wheel 44 to rotate during the rotation process. The eccentric wheel 44 can drive the push plate 47 to move back and forth through the rocker arm 45 and the pull rod 46 during the rotation process. When the push plate 47 moves toward the opening of the silo 3, it can push the pipe to slide out through the opening.

[0037] For details, please refer to Fig. 9 The output shaft of the second motor 43 is fixedly connected to one of the driving rollers 41 , and the pull rod 46 is hinged to the push plate 47 .

[0038] In this embodiment, the pull rod 46 can drive the push plate 47 to move.

[0039] For details, please refer to Figure 8 The lower end of the silo 3 is fixedly connected to two symmetrically distributed guide frames 48, the outer side of the guide frame 48 is slidably connected to a guide sleeve 49, the guide sleeve 49 is fixedly connected to the push plate 47, and the retaining frame 402 is slidably connected to the guide frame 40.

[0040] In this embodiment, the guide sleeve 49 can guide the movement of the guide frame 48 .

[0041] For details, please refer to Figure 7 The left and right ends of the loading rack 2 are fixedly connected with brackets 405, the bracket 405 is connected to the cam 406 through a bearing, the cam 406 is in sliding contact with the support frame 403, one end of the spring 404 is connected to the blocking frame 402, and the other end of the spring 404 is connected to the guide pin 401.

[0042] In this embodiment, the spring 1 404 can drive the retaining frame 402 to automatically reset through elastic force.

[0043] For details, please refer to Figure 1-9 The auxiliary feeding mechanism 6 includes a guide rod frame 61, two guide rod frames 61 symmetrically distributed front and back are fixedly connected to the outer side of the frame 5, a wheel frame 62 is slidably connected to the outer side of the guide rod frame 61, a rotating shaft 63 is installed inside the wheel frame 62 through a bearing, a driving wheel 64 is fixedly connected to the middle part of the outer side of the rotating shaft 63, a motor three 65 is fixedly connected to the outer side of the wheel frame 62 located on the front side of the frame 5, a spring two 66 is arranged on the outer side of the rod member of the guide rod frame 61, an adjusting frame 67 is slidably connected to the upper part of the outer side of the rod member of the guide rod frame 61, a screw 68 is installed on the upper end of the adjusting frame 67 through a bearing, a knob 60 is fixedly connected to the lower part of the outer side of the screw 68, and an internal threaded tube 69 is fixedly connected to the upper end of the guide rod frame 61.

[0044] For details, please refer to Figure 5 The output shaft of motor three 65 is fixedly connected to the rotating shaft 63, the wheel frame 62 is slidably connected to the frame 5, the screw 68 is threadedly connected to the internal threaded tube 69, one end of the spring two 66 is fixedly connected to the adjustment frame 67, the other end of the spring two 66 is fixedly connected to the wheel frame 62, the adjustment frame 67 is slidably connected to the frame 5, the upper ends of the two screws 68 are fixedly connected to the synchronous wheels 601, and the outer sides of the two synchronous wheels 601 are jointly sleeved with a synchronous belt 602.

[0045] In this embodiment, the synchronous belt 602 can drive the two screw rods 68 to rotate simultaneously.

[0046] In this embodiment, the screw 68 can drive the adjustment frame 67 to move through the threaded fit between the internal threaded tubes 69, and the knob 60 drives the screw 68 to rotate. During the rotation process, the screw 68 can drive the two screws 68 to rotate synchronously through the synchronous wheel 601 and the synchronous belt 602. During the rotation process, the screw 68 can drive the adjustment frame 67 to move through the threaded fit between the internal threaded tubes 69, and adjust the elastic force value of the spring 2 66, so as to adjust the extrusion force on the pipe.

[0047] For details, please refer to Figure 1 , Figure 2 The feeding mechanism 4 is located directly above the feeding rack 7 , and the auxiliary feeding mechanism 6 is located above the feeding belt 9 .

[0048] In this embodiment, the feed belt 9 can drive the pipe to move by friction.

[0049] For details, please refer to Figure 1 , Figure 2 The upper end of the base plate 1 is fixedly connected with a mounting frame 13 , and the upper end of the mounting frame 13 is fixedly connected with a conical cover 14 .

[0050] In this embodiment, the mounting frame 13 can support the cone cover 14 .

[0051] See also Figure 1 , Figure 2 , Figure 3 The present embodiment also provides a pipe straightening device, including a straightening box 10, and also includes the above-mentioned automatic pipe feeding device. The upper end of the base plate 1 is fixedly connected with the straightening box 10, the left end of the straightening box 10 is fixedly connected with a feed port 11, and the right end of the straightening box 10 is fixedly connected with a discharge port 12. The feed port 11 is fixedly connected to the conical cover 14.

[0052] In this embodiment, the conical cover 14 can guide the movement of the pipe.

[0053] The straightening box 10 is a prior art, and its general structure is as follows: the straightening box 10 is provided with two rotatable upper and lower rows of straightening roller groups inside, each group of straightening roller groups includes a number of straightening rollers, and the upper and lower rows of straightening roller groups can be arranged in a herringbone shape. The pipe fittings pass between the upper and lower rows of straightening roller groups, thereby straightening the pipe fittings.

[0054] Working principle: when in use, place the pipe fitting inside the silo 3, then start the motor 2 43, the motor 2 43 drives the driving roller 41 to rotate, the driving roller 41 drives the conveyor belt 42 to rotate, the driving roller 41 located below the silo 3 can drive the eccentric wheel 44 to rotate during the rotation process, the eccentric wheel 44 can drive the push plate 47 to reciprocate through the rocker arm 45 and the pull rod 46 during the rotation process, the push plate 47 can push the pipe fitting to slide out through the opening when moving toward the opening of the silo 3, and fall on the outside of the conveyor belt 42, and be transported by the rotation of the conveyor belt 42, when the pipe fitting contacts the retaining frame 402, the driving roller 41 located below the loading frame 2 drives the cam 406 to rotate, the cam 406 drives the retaining frame 402 to reciprocate up and down through the support frame 403, and when the retaining frame 402 moves downward, the elastic force of the spring 1 404 can drive the retaining frame 402 to reset, so as to realize intermittent feeding;

[0055] When the pipe is separated from the conveyor belt 42, it falls and drives the top of the feed belt 9 inside the feed rack 7, and at the same time starts the motor 15 and the motor 3 65. The motor 15 can drive the feed belt 9 to rotate through the pulley 8, and the feed rack 7 drives the pipe to move. When the pipe contacts the driving wheel 64, the power of the motor 15 and the motor 3 65 can drive the pipe to be fed into the straightening box 10. During the feeding process, the knob 60 can be turned according to the thickness of the pipe. The knob 60 drives the screw 68 to rotate. During the rotation process, the screw 68 can drive the two screws 68 to rotate synchronously through the synchronous wheel 601 and the synchronous belt 602. During the rotation process, the screw 68 can drive the adjustment rack 67 to move through the thread cooperation between the internal threaded tube 69, and adjust the elastic force value of the spring 2 66, so as to adjust the extrusion force of the pipe.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and improved concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. An automatic pipe feeding device, comprising a bottom plate (1), characterized in that: A loading rack (2) is fixedly mounted on the left upper end of the base plate (1), a material bin (3) is fixedly connected to the upper end of the loading rack (2), a loading mechanism (4) is arranged on the loading rack (2), a frame (5) is fixedly connected to the middle upper end of the base plate (1), an auxiliary feeding mechanism (6) is arranged on the frame (5), a feeding rack (7) is fixedly connected to the left upper end of the base plate (1), a plurality of pulleys (8) are mounted inside the feeding rack (7) through bearings, a feeding belt (9) is sleeved on the outer side of the pulley (8), a motor (15) is fixedly mounted on the left front side of the feeding rack (7), an output shaft of the motor (15) is fixedly connected to one of the pulleys (8).

2. The automatic pipe feeding device according to claim 1, characterized in that: The feeding mechanism (4) comprises a plurality of driving rollers (41) rotatably mounted on a feeding frame (2) via bearings, a conveyor belt (42) being sleeved on the outer side of the driving rollers (41), a motor 2 (43) being fixedly mounted on the outer side of the feeding frame (2), an eccentric wheel (44) being fixedly connected to the outer side of the connecting shaft at the left end of the driving roller (41) located below the silo (3), an eccentric connecting shaft being mounted at a non-center portion of the eccentric wheel (44), a rocker arm (45) being mounted on the eccentric connecting shaft via bearings, a pull rod (46) being hinged on the outer side of the rocker arm (45), and the silo (3 ) is slidably connected to the inside of the pushing plate (47), the loading frame (2) is fixedly connected to a guide frame (40), the upper end of the plane of the guide frame (40) is fixedly connected to two symmetrically distributed guide pins (401), the outer side of the guide pins (401) is slidably connected to a blocking frame (402), the left and right ends of the blocking frame (402) are fixedly connected to a support frame (403), the outer side of the guide pin (401) is provided with a spring 1 (404), and the left and right ends of the driving roller (41) located below the support frame (403) are fixedly connected to cams (406).

3. The automatic pipe feeding device according to claim 2, characterized in that: The output shaft of the second motor (43) is fixedly connected to one of the driving rollers (41), and the pull rod (46) is hinged to the push plate (47).

4. The automatic pipe feeding device according to claim 2, characterized in that: The lower end of the silo (3) is fixedly connected to two symmetrically distributed guide frames (48), the outer side of the guide frame (48) is slidably connected to a guide sleeve (49), the guide sleeve (49) is fixedly connected to the push plate (47), and the blocking frame (402) is slidably connected to the guide frame (40).

5. The automatic pipe feeding device according to claim 2, characterized in that: The left and right ends of the loading rack (2) are fixedly connected with brackets (405), the bracket (405) is connected to the cam (406) through a bearing, the cam (406) is slidably connected to the support frame (403), one end of the spring (404) is connected to the blocking frame (402), and the other end of the spring (404) is connected to the guide pin (401).

6. The automatic pipe feeding device according to claim 1, characterized in that: The auxiliary feeding mechanism (6) comprises a guide rod frame (61), two guide rod frames (61) symmetrically distributed front and back are fixedly connected to the outer side of the frame (5), a wheel frame (62) is slidably connected to the outer side of the guide rod frame (61), a rotating shaft (63) is installed inside the wheel frame (62) through a bearing, a driving wheel (64) is fixedly connected to the middle part of the outer side of the rotating shaft (63), a motor (65) is fixedly connected to the outer side of the wheel frame (62) located on the front side of the frame (5), a spring (66) is arranged on the outer side of the rod member of the guide rod frame (61), an adjustment frame (67) is slidably connected to the upper part of the outer side of the rod member of the guide rod frame (61), a screw rod (68) is installed on the upper end of the adjustment frame (67) through a bearing, a knob (60) is fixedly connected to the lower part of the outer side of the screw rod (68), and an internal threaded tube (69) is fixedly connected to the upper end of the guide rod frame (61).

7. The automatic pipe feeding device according to claim 6, characterized in that: The output shaft of the motor three (65) is fixedly connected to the rotating shaft (63), the wheel frame (62) is slidably connected to the frame (5), the screw rod (68) is threadedly connected to the internal threaded tube (69), one end of the spring two (66) is fixedly connected to the adjustment frame (67), the other end of the spring two (66) is fixedly connected to the wheel frame (62), the adjustment frame (67) is slidably connected to the frame (5), the upper ends of the two screw rods (68) are fixedly connected to a synchronous wheel (601), and the outer sides of the two synchronous wheels (601) are commonly sleeved with a synchronous belt (602).

8. The automatic pipe feeding device according to claim 1, characterized in that: The feeding mechanism (4) is located directly above the feeding rack (7), and the auxiliary feeding mechanism (6) is located above the feeding belt (9).

9. The automatic pipe feeding device according to claim 1, characterized in that: The upper end of the base plate (1) is fixedly connected to a mounting frame (13), and the upper end of the mounting frame (13) is fixedly connected to a conical cover (14).

10. A pipe straightening device, comprising a straightening box (10), characterized in that: It also includes the automatic pipe feeding device according to any one of claims 1 to 9, wherein the upper end of the base plate (1) is fixedly connected to a straightening box (10), the left end of the straightening box (10) is fixedly connected to a feed port (11), the right end of the straightening box (10) is fixedly connected to a discharge port (12), and the feed port (11) is fixedly connected to the conical cover (14).

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