Clamping device for winding and packaging pipes

Abstract

The invention relates to the technical field of winding and packaging, and discloses a clamping device for winding and packaging a pipe, the clamping device for winding and packaging the pipe comprises a machine body, a fixing frame is fixedly mounted at the top of the machine body, and the outer wall of the fixing frame is fixedly connected with the outer wall of a servo motor. According to the clamping device for winding and packaging the pipe, in order to better wind and package a pipe body, the winding assembly is arranged, the pipe body passes through the base, an asynchronous motor on the frame is started, so that a rotating shaft drives a driving gear to rotate, and the driving gear rotates in multiple sets of riding wheels in cooperation with transmission of a gear ring; the fixing rod and the packaging film barrel are driven to synchronously revolve around the circle center of the gear ring, so that a packaging film body is wound outside a pipe body, packaging is completed along with continuous transverse movement of the pipe body, an arc-shaped hook is made to transversely move in cooperation with a bottom plate, a hydraulic cylinder and a piston rod, and clamping of the packaging film body is completed in cooperation with a clamping block; and then winding and packaging can be better carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of winding and packaging, in particular to a clamping device for pipe winding and packaging. Background Art

[0002] In the field of pipe production and application, wrapping the outside of the pipe is an important process. Its purpose is to prevent the surface of the pipe from being damaged during handling and transportation, and to avoid damage to the anti-corrosion protective layer, thereby ensuring that the performance and service life of the pipe are not affected.

[0003] In the traditional packaging process, operators hold the packaging parts and pipes by hand to package them. However, for larger pipes and batch production, the production efficiency needs to be improved. At present, there are many clamping devices for pipe packaging on the market, but they are often simple in structure and basically perform a single clamping on the pipe body.

[0004] The packaging film cannot be clamped and fixed well after one packaging is completed so as to facilitate the next packaging, and the packaging cannot be thickened at a certain position of the pipe body. The practicality needs to be improved, and the device cannot adapt well to pipe bodies of more sizes, and its applicability needs to be improved. In view of this, we propose a clamping device for pipe winding packaging. Summary of the Invention

[0005] The object of the present invention is to provide a clamping device for pipe winding and packaging to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A clamping device for pipe winding and packaging, comprising a body, a fixing frame fixedly mounted on the top of the body, an outer wall of the fixing frame fixedly connected to the outer wall of a servo motor, a transmission roller provided at the output end of the servo motor, the transmission roller rotatably mounted on the fixing frame, a pipe body provided on the transmission roller, two sets of the fixing frame and the servo motor are provided, a winding assembly is provided on the top of the body, and the winding assembly includes:

[0008] A base is fixedly mounted on the top of the machine body, a frame is fixedly mounted on the outer wall of the base, the frame is located between the two sets of transmission rollers, an asynchronous motor is fixedly mounted on the outer wall of the frame, a rotating shaft is fixedly mounted on the output end of the asynchronous motor, and a driving gear is fixedly mounted on the outer wall of the rotating shaft;

[0009] The frame is provided with a plurality of supporting wheels for rotation. The supporting wheels are provided in a plurality of groups. The arc-shaped outer wall of the gear ring is slidably fitted between the supporting wheels. The gear ring is engaged with the driving gear.

[0010] A fixing rod is fixedly installed on the outer wall of the gear ring, a packing film cylinder is clamped on the fixing rod, a packing film body is wound around the packing film cylinder, a bottom plate is fixedly installed on the bottom of the fixing frame, a hydraulic cylinder is fixedly installed on the bottom of the bottom plate, one end of the piston rod is fixedly installed on the piston end of the hydraulic cylinder, and an arc-shaped hook is fixedly installed on the other end of the piston rod, a clamping block is fixedly installed on the outer wall of the hydraulic cylinder close to the arc-shaped hook, and the outer wall of the arc-shaped hook close to the gear ring is arc-shaped.

[0011] Preferably, the centers of the circular cross-sections of the frame and the gear ring are coaxial, so as to better perform winding and packaging.

[0012] Preferably, two groups of bases are provided, and the two groups of bases are symmetrically arranged at both ends of the frame with the vertical center line of the frame as the symmetry axis, so that the frame is more stable.

[0013] Preferably, the movement tracks of the packaging film cylinder and the packaging film body do not intersect with the transmission roller to prevent movement interference.

[0014] Preferably, the arc hooks and clamping blocks are provided in multiple groups, and the multiple groups of arc hooks and clamping blocks are arranged in a circular array with equal spacing around the center of the circular cross section of the piston rod, so as to better pull back and clamp the packaging film body.

[0015] Preferably, a blocking assembly is provided on the top of the body, and the blocking assembly includes a first electric push rod, the top of the body is fixedly connected to the fixed end of the bottom end of the first electric push rod, the piston end of the first electric push rod is fixedly installed with a cross frame, the outer wall of the cross frame is fixedly installed with a first asynchronous motor, the output end of the first asynchronous motor is fixedly installed with a one-way threaded rod, the one-way threaded rod is rotatably installed on the cross frame, the one-way threaded rod is threaded with a first threaded block, the outer wall of the first threaded block is fixedly installed with a slider, and the slider is slidably installed on the cross frame.

[0016] Preferably, one end of a connecting frame is fixedly mounted on the outer wall of the slider, a U-shaped frame is fixedly mounted on the other end of the connecting frame, and a baffle is clamped inside the U-shaped frame.

[0017] Preferably, the horizontal centers of the U-shaped frame, the baffle and the pipe body are at the same level, so as to better block the pipe body.

[0018] Preferably, a moving component is provided on the outside of the pipe body, and the moving component includes a second asynchronous motor, a second asynchronous motor is fixedly mounted on the outer wall of the U-shaped frame, a bidirectional threaded rod is fixedly mounted on the output end of the second asynchronous motor, the bidirectional threaded rod is rotatably mounted on the U-shaped frame, a second threaded block is threadedly fitted on the bidirectional threaded rod, a moving block is fixedly mounted on the outer wall of the second threaded block, one end of the moving block slides in contact with the outside of the baffle, one end of the moving block is fixedly mounted on the other end of the moving block, and an arc-shaped splint is fixedly mounted on the other end of the connecting rod, and two groups of the second threaded block, moving block, connecting rod and arc-shaped splint are provided, and the two groups of the second threaded block, moving block, connecting rod and arc-shaped splint are mirrored at both ends of the U-shaped frame with the vertical center line of the drive roller as the mirror axis.

[0019] Preferably, the top of one end of the body away from the first electric push rod is fixedly connected to the fixed end of the bottom end of the second electric push rod, the internal thread of the piston end of the second electric push rod is matched with a threaded column, and the threaded column is rotatably installed inside the clamping plate. The second electric push rod, threaded column and clamping plate are provided in two groups, so as to better enable the pipe body to be transported in a centered manner.

[0020] Compared with the prior art, the present invention provides a clamping device for pipe winding and packaging, which has the following beneficial effects:

[0021] 1. The clamping device for pipe winding and packaging, in order to better wrap and package the pipe body, by setting a winding assembly, first start the servo motor on the fixed frame to rotate the transmission roller to transport the pipe body in one direction. The pipe body passes through the base, and the asynchronous motor on the frame is started in advance, so that the rotating shaft drives the driving gear to rotate, and cooperates with the transmission of the gear ring to rotate inside the multiple sets of rollers, driving the fixed rod and the packaging film cylinder to synchronously revolve around the center of the gear ring, so that the packaging film body is wrapped around the outside of the pipe body. As the pipe body continues to move laterally, the packaging is completed, and then the hydraulic cylinder on the bottom plate is started, so that the piston rod drives the arc hook to move laterally close to the direction of the stretched packaging film body, and then the hydraulic cylinder is reversed to reset the arc hook in the opposite direction. The arc hook pulls the packaging film body back in a bundle shape, and cooperates with the clamping block to complete the clamping. The pipe body continues to move and tears the packaging film body outside it. Therefore, when the next packaging process is carried out, the packaging film body is rewound when the packaging film cylinder rotates, and then the wrapping and packaging can be better performed.

[0022] 2. In order to achieve better packaging effect and improve practicality, the clamping device for pipe winding and packaging is provided with a blocking component. When it is necessary to thicken the packaging at a certain position of the pipe body, the first electric push rod is started to enable the cross frame to move up and down to adapt to pipe bodies of different sizes. When the first asynchronous motor is started, the one-way threaded rod is rotated, so that the first threaded block drives the slider to move horizontally, and the connecting frame synchronously drives the U-shaped frame and the baffle to move. When the baffle fits the outside of the pipe body, the pipe body is blocked and can no longer move forward, so that the position where it is packaged by the winding component is repeatedly packaged, and the packaging thickness is thickened, thereby better improving the practicality of the device body.

[0023] 3. The clamping device for pipe winding and packaging is provided with a moving component in order to achieve a better packaging effect of the winding assembly. When the pipe body hits the baffle, the second asynchronous motor is started to rotate the bidirectional threaded rod, so that the two groups of second threaded blocks drive the moving blocks to move toward each other synchronously, so that the two groups of connecting rods can drive the two groups of arc-shaped clamping plates to move synchronously close to each other, so that the arc-shaped clamping plates can clamp the pipe body, so that it can move better in the center. When the second electric push rod is started, the threaded column can move up and down. When the threaded column is rotated, the two groups of clamping plates can move up and down and can also move toward each other, so that it can better adapt to pipe bodies of different sizes, so that the pipe body can be better centered and packaged by the winding assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0026] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0027] Figure 4 It is a partial structural diagram of the present invention;

[0028] Figure 5 It is a schematic cross-sectional view of the machine body of the present invention;

[0029] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of the middle B area;

[0030] Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure of the middle C area.

[0031] In the figure: 1, machine body; 2, fixed frame; 3, servo motor; 4, transmission roller; 5, pipe body; 6, winding assembly; 61, base; 62, frame; 63, asynchronous motor; 64, rotating shaft; 65, driving gear; 66, supporting roller; 67, gear ring; 68, fixing rod; 69, packaging film cylinder; 610, packaging film body; 611, bottom plate; 612, hydraulic cylinder; 613, piston rod; 614, arc hook; 615, clamping block; 7, Blocking assembly; 71. First electric push rod; 72. Cross frame; 73. First asynchronous motor; 74. One-way threaded rod; 75. First threaded block; 76. Slider; 77. Connecting frame; 78. U-shaped frame; 79. Baffle; 8. Moving assembly; 81. Second asynchronous motor; 82. Two-way threaded rod; 83. Second threaded block; 84. Moving block; 85. Connecting rod; 86. Arc-shaped clamping plate; 87. Second electric push rod; 88. Threaded column; 89. Clamping plate. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In this application, the term "upper" indicates an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. This is primarily for the purpose of better describing this application and its embodiments, and is not intended to limit the indicated devices, elements, or components to a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, the term "upper" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0034] See also Figure 1 - Figure 7 , the present invention provides a technical solution:

[0035] A clamping device for pipe winding and packaging includes a body 1, a fixing frame 2 is fixedly installed on the top of the body 1, the outer wall of the fixing frame 2 is fixedly connected to the outer wall of a servo motor 3, a transmission roller 4 is provided at the output end of the servo motor 3, the transmission roller 4 is rotatably installed on the fixing frame 2, and a pipe body 5 is provided on the transmission roller 4. Two groups of the fixing frame 2, servo motor 3 and transmission roller 4 are provided.

[0036] When the servo motor 3 is powered on and started, it drives the transmission roller 4 to rotate at a set speed. The surface of the transmission roller 4 contacts the pipe body 5, and relies on friction to transport the pipe body 5 from the initial position to the working area of ​​the winding assembly 6 in one direction. Since there are two groups of fixed frame 2, servo motor 3 and transmission roller 4, the two groups of transmission rollers 4 work together to ensure that the pipe body 5 remains stable during the transportation process and avoids deviation.

[0037] In one embodiment of the present invention, a winding assembly 6 is provided on the top of the machine body 1, and the winding assembly 6 includes a base 61. The base 61 is fixedly installed on the top of the machine body 1, and a frame 62 is fixedly installed on the outer wall of the base 61. The frame 62 is located between the two groups of transmission rollers 4. In addition, two groups of bases 61 are provided, and the two groups of bases 61 are symmetrically arranged at both ends of the frame 62 with the vertical center line of the frame 62 as the symmetry axis, so that the frame 62 is more stable. An asynchronous motor 63 is fixedly installed on the outer wall of the frame 62, and a rotating shaft 64 is fixedly installed on the output end of the asynchronous motor 63. A driving gear 65 is fixedly installed on the outer wall of the rotating shaft 64. A supporting wheel 66 is rotatably installed inside the frame 62. There are six groups of supporting wheels 66, and the arc-shaped outer wall of a gear ring 67 is slidably fitted between the six groups of supporting wheels 66. The gear ring 67 meshes with the driving gear 65. In addition, the circular cross-section centers of the frame 62 and the gear ring 67 are coaxial, so as to better carry out winding and packaging. The outer surface of the gear ring 67 The wall is fixedly installed with a fixing rod 68, on which a packing film cylinder 69 is clamped, and a packing film body 610 is wound around the packing film cylinder 69. In addition, the movement tracks of the packing film cylinder 69 and the packing film body 610 do not intersect with the transmission roller 4 to prevent movement interference. A bottom plate 611 is fixedly installed at the bottom of the fixing frame 2, and a hydraulic cylinder 612 is fixedly installed at the bottom of the bottom plate 611. One end of a piston rod 613 is fixedly installed at the piston end of the hydraulic cylinder 612. The piston rod 613 An arc-shaped hook 614 is fixedly installed at the other end, and a clamping block 615 is fixedly installed on the outer wall of the hydraulic cylinder 612 close to the arc-shaped hook 614. The outer wall of the arc-shaped hook 614 close to the gear ring 67 is arc-shaped. In addition, there are three groups of arc-shaped hooks 614 and clamping blocks 615, and the three groups of arc-shaped hooks 614 and clamping blocks 615 are arranged in a circular array with equal spacing around the center of the circular cross-section of the piston rod 613 as the center of the array, so as to better pull back and clamp the packaging film body 610.

[0038] When this embodiment is used, the asynchronous motor 63 on the frame 62 is started before the pipe body 5 is transported, and the rotating shaft 64 fixed at the output end of the asynchronous motor 63 rotates accordingly, and the rotating shaft 64 drives the driving gear 65 to rotate. The driving gear 65 and the gear ring 67 are meshed with each other. According to the gear transmission principle, the rotation of the driving gear 65 will drive the gear ring 67 to rotate inside the six sets of supporting wheels 66. The design of the supporting wheels 66 can reduce the friction resistance when the gear ring 67 rotates, ensuring its smooth operation. During the rotation of the gear ring 67, the packaging film cylinder 69 connected thereto is driven by the fixed rod 68 to rotate synchronously around the gear ring 6 7, the center of the circle revolves, and the packaging film body 610 wound on the packaging film cylinder 69 is gradually unfolded and wound around the outside of the pipe body 5 during the revolution. At the same time, the pipe body 5 continues to move horizontally under the action of the transmission roller 4, and the packaging film body 610 is continuously wound until the overall packaging of the pipe body 5 is completed. During this process, the movement trajectory of the packaging film cylinder 69 and the packaging film body 610 does not intersect with the transmission roller 4, so as to prevent movement interference and affect the normal progress of the packaging work. After the packaging is completed, the hydraulic cylinder 612 on the bottom plate 611 starts to work, and its piston drives the piston rod 613 to move closer to the straightened The packing film body 610 in the state moves laterally, and the arc hook 614 fixed at the other end of the piston rod 613 gradually approaches the packing film body 610. When the arc hook 614 hooks the packing film body 610, the hydraulic cylinder 612 is controlled to run in the reverse direction, and the piston rod 613 drives the arc hook 614 to reset in the reverse direction. The arc hook 614 pulls the packing film body 610 back in a bundle shape. Since the arc hook 614 and the clamping block 615 are provided in three groups, and are arranged in a circular array with equal spacing around the center of the circular cross section of the piston rod 613 as the center of the array, the three groups of arc hooks 614 and the clamping block 615 work together to The packaging film body 610 can be clamped more stably. At this time, the tube body 5 continues to move under the drive of the transmission roller 4 (at the same time, the packaging film body 610 is clamped and fixed by the moving component 8). The moving force of the tube body 5 is used to tear off the packaging film body 610 that has been clamped on its outside, completing a packaging process. When the next tube body 5 enters, the packaging film cylinder 69 continues to rotate under the drive of the gear ring 67. The arc hook 614 moves away from the clamping block 615 to release the clamped packaging film body 610 and then resets in the reverse direction, so that the packaging film body 610 is rewound to prepare for the next packaging.

[0039] The top of the machine body 1 is provided with a blocking assembly 7, which includes a first electric push rod 71, the top of the machine body 1 is fixedly connected to the fixed end of the bottom end of the first electric push rod 71, the piston end of the first electric push rod 71 is fixedly installed with a cross frame 72, the outer wall of the cross frame 72 is fixedly installed with a first asynchronous motor 73, the output end of the first asynchronous motor 73 is fixedly installed with a one-way threaded rod 74, the one-way threaded rod 74 is rotatably mounted on the cross frame 72, the one-way threaded rod 74 is threadedly matched with a first threaded block 75, the outer wall of the first threaded block 75 is fixedly installed with a slider 76, and the slider 76 is slidably mounted on the cross frame 72. In addition, the outer wall of the slider 76 is fixedly installed with one end of a connecting frame 77, and the other end of the connecting frame 77 is fixedly installed with a U-shaped frame 78. A baffle 79 is clamped inside the U-shaped frame 78. In addition, the horizontal centers of the U-shaped frame 78, the baffle 79 and the pipe body 5 are at the same horizontal height, so as to better block the pipe body 5.

[0040] When the present embodiment is used, when it is necessary to thicken and pack a certain position of the pipe body 5, the first electric push rod 71 is started in advance, thereby driving the cross frame 72 to move up and down, so as to adapt to pipe bodies 5 of different sizes. After adjusting the height of the cross frame 72, the first asynchronous motor 73 is started, and the output end of the first asynchronous motor 73 drives the one-way threaded rod 74 to rotate. The one-way threaded rod 74 and the first threaded block 75 are matched through threads. When the one-way threaded rod 74 rotates, the first threaded block 75 moves laterally along the one-way threaded rod 74 under the action of the threads. The slider 76 fixed on the outer wall of the first threaded block 75 slides on the cross frame 72, providing guidance and support for the movement of the first threaded block 75 to ensure its stable movement. The slider 76 drives the U-shaped frame 78 and the baffle 79 to move synchronously through the connecting frame 77. When the baffle 79 fits the outside of the pipe body 5, the pipe body 5 is blocked and can no longer move forward. At this time, the winding assembly 6 continues to work, and the packaging film body 610 continues to wrap around the current position of the pipe body 5, realizing repeated packaging, thickening the packaging thickness, and thereby improving the practicality of the device.

[0041] In one embodiment of the present invention, a moving assembly 8 is provided on the outside of the pipe body 5, and the moving assembly 8 includes a second asynchronous motor 81. The second asynchronous motor 81 is fixedly mounted on the outer wall of the U-shaped frame 78. The output end of the second asynchronous motor 81 is fixedly mounted with a bidirectional threaded rod 82, and the bidirectional threaded rod 82 is rotatably mounted on the U-shaped frame 78. The bidirectional threaded rod 82 is threaded with a second threaded block 83. The outer wall of the second threaded block 83 is fixedly mounted with a moving block 84. One end of the moving block 84 slides and fits the outside of the baffle 79. The other end of the moving block 84 is fixedly mounted with one end of a connecting rod 85. The other end of the connecting rod 85 is fixedly mounted with an arc splint 86. The second threaded block 83, moving block 84, connecting rod 85 and arc-shaped clamping plate 86 are provided in two groups, and the two groups of second threaded blocks 83, moving block 84, connecting rod 85 and arc-shaped clamping plate 86 all use the vertical center line of the transmission roller 4 as the mirror axis, and are mirrored at both ends of the U-shaped frame 78. In addition, the top of one end of the body 1 away from the first electric push rod 71 is fixedly connected to the fixed end of the bottom end of the second electric push rod 87, and the internal thread of the piston end of the second electric push rod 87 is matched with a threaded column 88, and the threaded column 88 is rotatably installed inside the clamping plate 89. The second electric push rod 87, threaded column 88 and clamping plate 89 are provided in two groups, so as to better enable the pipe body 5 to be transported in a centered manner.

[0042] When this embodiment is used, after the pipe body 5 contacts the baffle 79, the second asynchronous motor 81 is started, and the output end of the second asynchronous motor 81 drives the bidirectional threaded rod 82 to rotate. The bidirectional threaded rod 82 has two sections of threads with opposite rotation directions, which are threadedly matched with the two sets of second threaded blocks 83. When the bidirectional threaded rod 82 rotates, the two sets of second threaded blocks 83 move synchronously in opposite directions under the action of the threads. One end of the moving block 84 fixed on the outer wall of the second threaded block 83 slides and fits the outside of the baffle 79 to provide a guide for the movement of the moving block 84, and the other end drives the two sets of The arc-shaped clamping plates 86 move synchronously toward each other, thereby clamping and tightening the pipe body 5 to achieve centering; before the pipe body 5 is packaged, the second electric push rod 87 is started, and the second electric push rod 87 drives the threaded column 88 to move up and down. When the threaded column 88 is rotated, the threaded column 88 cooperates with the threaded structure inside the clamping plate 89, so that the two groups of clamping plates 89 can move toward each other while moving up and down. By adjusting the position and spacing of the clamping plates 89, it is further adapted to pipe bodies 5 of different sizes, ensuring that the pipe body 5 can be better centered so that it can be accurately packaged by the wound component 6.

[0043] Among them, the electrical components appearing in this application document are all electrically connected to the controller and the 220V AC power supply, and the controller is a conventional known device that can control the servo motor 3, the asynchronous motor 63, the hydraulic cylinder 612, the first electric push rod 71, the first asynchronous motor 73, the second asynchronous motor 81 and the second electric push rod 87. The standard parts used in this application document can all be purchased on the market. The specific connection method of each part adopts the conventional means such as mature rivets and welding in the existing technology for connection, and the machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0044] While the present invention has been generally described above, modifications and improvements are readily apparent to those skilled in the art. Therefore, modifications and improvements that do not depart from the spirit of the present invention are intended to be within the scope of the present invention.

Claims

1. A clamping device for pipe winding and packaging, comprising a body (1), a fixed frame (2) fixedly mounted on the top of the body (1), an outer wall of a servo motor (3) fixedly mounted on the outer wall of the fixed frame (2), a transmission roller (4) provided at the output end of the servo motor (3), the transmission roller (4) rotatably mounted on the fixed frame (2), a pipe body (5) provided on the transmission roller (4), the fixed frame (2), the servo motor (3) and the transmission roller (4) provided in two groups, characterized in that: A winding assembly (6) is provided on the top of the machine body (1), and the winding assembly (6) comprises: A base (61) is fixedly mounted on the top of the machine body (1), a frame (62) is fixedly mounted on the outer wall of the base (61), the frame (62) is located between two sets of transmission rollers (4), an asynchronous motor (63) is fixedly mounted on the outer wall of the frame (62), a rotating shaft (64) is fixedly mounted on the output end of the asynchronous motor (63), and a driving gear (65) is fixedly mounted on the outer wall of the rotating shaft (64); A supporting wheel (66) is rotatably mounted inside the frame (62). The supporting wheels (66) are provided in multiple groups, and the arc-shaped outer wall of the gear ring (67) is slidably attached between the multiple groups of supporting wheels (66). The gear ring (67) meshes with the driving gear (65); A fixing rod (68) is fixedly mounted on the outer wall of the gear ring (67); a packing film cylinder (69) is clamped on the fixing rod (68); a packing film body (610) is wound around the packing film cylinder (69); a bottom plate (611) is fixedly mounted on the bottom of the fixing frame (2); a hydraulic cylinder (612) is fixedly mounted on the bottom of the bottom plate (611); one end of a piston rod (613) is fixedly mounted on the piston end of the hydraulic cylinder (612); an arc-shaped hook (614) is fixedly mounted on the other end of the piston rod (613); a clamping block (615) is fixedly mounted on the outer wall of the hydraulic cylinder (612) on one side close to the arc-shaped hook (614); and the outer wall of the arc-shaped hook (614) on the side close to the gear ring (67) is in an arc shape.

2. A clamping device for pipe wrapping and packaging according to claim 1, characterized in that: The centers of the circular cross sections of the frame (62) and the gear ring (67) are coaxial.

3. The clamping device for pipe wrapping and packaging according to claim 1, characterized in that: The bases (61) are provided in two groups, and the two groups of bases (61) are symmetrically arranged at both ends of the frame (62) with the vertical center line of the frame (62) as the symmetry axis.

4. The clamping device for pipe wrapping and packaging according to claim 1, characterized in that: The movement tracks of the packaging film cylinder (69) and the packaging film body (610) do not intersect with the transmission roller (4).

5. The clamping device for pipe wrapping and packaging according to claim 1, characterized in that: The arc-shaped hooks (614) and the clamping blocks (615) are provided in multiple groups, and the multiple groups of arc-shaped hooks (614) and the clamping blocks (615) are arranged in a circular array with equal spacing around the center of the circular cross section of the piston rod (613).

6. The clamping device for pipe wrapping and packaging according to claim 1, characterized in that: A blocking assembly (7) is provided at the top of the machine body (1), and the blocking assembly (7) includes a first electric push rod (71). The top of the machine body (1) is fixedly connected to the fixed end of the bottom end of the first electric push rod (71). A cross frame (72) is fixedly installed on the piston end of the first electric push rod (71). A first asynchronous motor (73) is fixedly installed on the outer wall of the cross frame (72). A one-way threaded rod (74) is fixedly installed on the output end of the first asynchronous motor (73). The one-way threaded rod (74) is rotatably mounted on the cross frame (72). A first threaded block (75) is threadedly matched on the one-way threaded rod (74). A slider (76) is fixedly installed on the outer wall of the first threaded block (75). The slider (76) is slidably mounted on the cross frame (72).

7. The clamping device for pipe wrapping and packaging according to claim 6, characterized in that: One end of a connecting frame (77) is fixedly mounted on the outer wall of the slider (76), and a U-shaped frame (78) is fixedly mounted on the other end of the connecting frame (77), wherein a baffle (79) is clamped inside the U-shaped frame (78).

8. The clamping device for pipe wrapping and packaging according to claim 7, characterized in that: The horizontal centers of the U-shaped frame (78), the baffle (79) and the pipe body (5) are at the same level.

9. The clamping device for pipe wrapping and packaging according to claim 8, characterized in that: A moving assembly (8) is provided on the outside of the pipe body (5), and the moving assembly (8) includes a second asynchronous motor (81). The second asynchronous motor (81) is fixedly mounted on the outer wall of the U-shaped frame (78). A bidirectional threaded rod (82) is fixedly mounted on the output end of the second asynchronous motor (81). The bidirectional threaded rod (82) is rotatably mounted on the U-shaped frame (78). A second threaded block (83) is threadedly engaged on the bidirectional threaded rod (82). A moving block (84) is fixedly mounted on the outer wall of the second threaded block (83). The moving block ( One end of the movable block (84) is slidably fitted to the outside of the baffle (79), one end of the connecting rod (85) is fixedly installed on the other end of the movable block (84), and an arc-shaped clamping plate (86) is fixedly installed on the other end of the connecting rod (85). The second threaded block (83), the movable block (84), the connecting rod (85) and the arc-shaped clamping plate (86) are provided in two groups, and the two groups of the second threaded block (83), the movable block (84), the connecting rod (85) and the arc-shaped clamping plate (86) are mirrored at both ends of the U-shaped frame (78) with the vertical center line of the transmission roller (4) as the mirror axis.

10. The clamping device for pipe wrapping and packaging according to claim 9, characterized in that: The top of one end of the body (1) away from the first electric push rod (71) is fixedly connected to the fixed bottom end of the second electric push rod (87); the internal thread of the piston end of the second electric push rod (87) is matched with a threaded column (88); the threaded column (88) is rotatably installed inside the clamping plate (89); the second electric push rod (87), the threaded column (88) and the clamping plate (89) are provided in two groups.

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