A steel pipe binding device

Abstract

This application discloses a steel pipe binding device, relating to the field of steel pipe processing, used to solve the problem of steel pipe slippage during transportation. The device includes: a rotating device for placing binding straps and driving the straps to move around the steel pipe for binding; a cutting assembly including a first long arm and a second long arm arranged side-by-side, connected by a gear transmission to drive the first and second long arms to move towards each other; a transmission assembly connected to the cutting assembly to drive the cutting assembly to move into the trajectory of the binding strap; a clamp with a cross-shaped limiting part on the first long arm, and a cutting blade on the second long arm, the clamp cooperating with the cutting blade to cut the binding strap when the limiting part intercepts it, thus completing the binding.

Description

Technical Field

[0001] This invention relates to the field of steel pipe processing technology, and in particular to a steel pipe binding device. Background Technology

[0002] In the manufacturing process of steel pipes, the efficient transportation of steel pipe assemblies is a key link in the production process. Usually, the steel pipe assemblies need to be transported to the lifting device, then the lifting device is used to hoist the steel pipe assemblies onto the overhead crane, and finally the overhead crane transports the steel pipe assemblies to the designated work station.

[0003] However, during this process, after the steel pipes are cut and processed, water stains and oil stains often remain on their surface. In addition, the outer surface of the steel pipes is relatively smooth. During hoisting and transportation, the steel pipes inside the steel pipe assembly are very prone to slipping due to insufficient friction between them, or even loosening and slipping out, which poses a great risk.

[0004] Therefore, a new steel pipe binding device is needed to solve the problem of steel pipes slipping during transportation. Summary of the Invention

[0005] The purpose of this application is to provide a new steel pipe binding device that can solve the problem of steel pipes slipping during transportation.

[0006] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0007] The device includes: a rotating device for placing the strapping and driving it to move around a steel pipe for binding; a cutting assembly including a first long arm and a second long arm arranged side by side, the first long arm and the second long arm being connected by a gear to drive the first long arm and the second long arm to move towards each other; a transmission assembly connected to the cutting assembly for driving the cutting assembly to move into the movement trajectory of the strapping; a clamp with a cross-shaped limiting part on the first long arm, and a cutting blade on the second long arm, the clamp cooperating with the cutting blade to cut the strapping when the limiting part intercepts the strapping to complete the binding.

[0008] Furthermore, the transmission assembly includes a housing and a drive shaft. The housing has a square groove, the drive shaft has a guide rod, and a slider is slidably mounted on the guide rod. A long arm is laterally mounted on the upper part of the slider, and the slider extends into the square groove to drive the long arm to move along the square groove.

[0009] Furthermore, long arm one and long arm two are slidably mounted on the fixed plate, and gear one is rotatably mounted on the fixed plate. Gear one is located between long arm one and long arm two, and racks that mesh with gear one are provided on long arm one and long arm two.

[0010] Furthermore, a guide section is provided at the bottom of the gear, and the guide section has an inclined surface. A contact member is provided at the bottom of the body, and the contact member is located below the square groove. A contact section is provided at the top of the contact member, and the contact section is located on the movement trajectory of the guide section. This is used to drive the gear to rotate when the limiting part intercepts the strap.

[0011] Furthermore, it also includes a drive device 1, which is mounted on the machine body 1 and is used to drive the long arm 1 to perform cyclical movement along the square groove by the guide rod.

[0012] Furthermore, the main body is composed of a vertical plate and a horizontal plate set at the bottom of the vertical plate, and the drive device is set on the horizontal plate.

[0013] Furthermore, the output end of the drive device is arranged horizontally, and two pulley grooves are provided at the end of the output end. A support frame is provided on the horizontal plate, and a connecting shaft is provided on the support frame. The pulley groove is provided on the left end of the connecting shaft, and a bevel gear is provided on the right end of the connecting shaft. A gear and a bevel gear are provided on the drive shaft, and the bevel gear and the bevel gear are meshed.

[0014] Furthermore, the rotating device includes a hollow ring with meshing teeth on the outer side that mesh with gear two. This meshing teeth are used to drive bevel gear two through the cooperation of drive device one and connecting shaft one. Bevel gear two drives bevel gear one, bevel gear one drives gear two to rotate, and gear two drives the hollow ring to rotate.

[0015] Furthermore, the left end of the drive shaft is provided with a pulley groove three, and the bottom of the housing is provided with a vertical rod one, which is fixedly mounted on the horizontal plate.

[0016] The technical effects are as follows:

[0017] A hollow ring with a rotating shaft is used to drive the binding straps to rotate around the centrally conveyed steel pipe assembly to begin binding. A cutting device is installed on one side of the hollow ring to achieve automatic binding and cutting of the binding straps. The cutting device includes a drive shaft driven by a driving device, and a housing with a square groove is installed on the drive shaft. A guide rod is installed at the end of the drive shaft, and a long arm with a slider is installed on the guide rod to keep the long arm in a horizontally parallel state during movement. Driven by the drive shaft, the long arm moves in a circular motion around the square groove. When the long arm extends forward, the limiting part moves into the binding movement trajectory and intercepts the binding strap in the clamp. Between the cutting blade and the gear, and by setting racks that mesh with gear one on the inner side of long arm one and long arm two, when long arm one is driven to retract, the inclined surface one of the guide part drives gear one to rotate under the contact of the lower contact member. While long arm one moves backward, long arm two moves forward. During this period, clamp one intercepts the binding strap and tightens the binding strap when retracting. Cutting blade one cuts the binding strap under the assistance of the tension force, thereby automatically completing one stage of binding and cutting of the steel pipe group. Before hoisting, the steel pipes are automatically bundled in rows and groups to prevent the steel pipes from slipping and loosening during transportation, thereby solving the problem of steel pipes slipping easily during transportation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the steel pipe binding device of the present invention.

[0019] Figure 2 This is a schematic diagram of the cutting device of the steel pipe binding device of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the long arm one and long arm two of the steel pipe binding device of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of clamp one and clamp two of the steel pipe binding device of the present invention.

[0022] Figure 5 This is a schematic diagram showing three motion postures of the long arm of the steel pipe binding device of the present invention.

[0023] Figure 6 This is a schematic diagram of the structure of the fixing plate of the steel pipe binding device of the present invention.

[0024] Figure 7 This is a schematic diagram of the conveying device of the steel pipe binding device of the present invention.

[0025] Figure 8 This is a schematic diagram of the square box structure of the steel pipe binding device of the present invention.

[0026] In the attached diagram: 1. Conveying device, 2. Guiding device, 3. Binding device, 4. Cutting device, 5. Lifting device, 6. Drive device one, 7. Clamp one, 8. Clamp two;

[0027] 201. Body 2; 202. Guide frame; 203. Square box; 204. Rotary wheel; 205. Gear set; 206. Column; 207. Base plate; 208. Insert plate; 209. Support plate.

[0028] 2031, Side plate; 2032, Connecting buckle; 2033, Rotating shaft; 2034, Pull rope; 2035, Counterweight;

[0029] 401. Drive shaft; 402. Housing; 403. Guide rod; 404. Bushing; 405. Long arm one; 406. Vertical rod one;

[0030] 4021, cover plate; 4022, square groove; 4031, slide groove one;

[0031] 4051. Fixing plate; 4052. Slide rail; 4053. Sliding cover; 4054. Long arm II; 4055. Rack; 4056. Gear I; 4057. Guide part; 4058. Tension spring.

[0032] 701. Limiting part; 702. Clamping block one; 703. Cutting blade; 801. Clamping block two. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other. Example

[0037] like Figures 1 to 5 As shown, in this embodiment, a conveying device 1 and a lifting device 5 are provided for conveying groups of circular steel pipes. The conveying device 1 is used to convey steel pipes one by one. There are two lifting devices 5, which are located on both sides of the front end of the conveying device 1. A stop bar is set between the lifting devices 5 to limit the total width of the group of steel pipes. After the number of steel pipes on the two lifting devices 5 or between the stop bars reaches a predetermined number, the lifting device 5 is driven to lift the group of steel pipes, and the double-headed trolley is driven to move above the group of steel pipes. After the two ends of the group of steel pipes are manually tied, the lifting device 5 and the stop bar are driven to descend so that the group of steel pipes is hoisted onto the two straps lowered by the double-headed trolley. The double-headed trolley is then used to lift and transport the steel pipes to the predetermined position to complete the transportation. However, the above method has the risk of the middle steel pipes loosening and slipping out due to tilting and water stains and oil stains between the steel pipes during transportation. Therefore, it is necessary to tie the steel pipes into rows and groups again before stacking them on the lifting device 5 to ensure the stability of the group of steel pipes during transportation. The device that can achieve this effect is as follows.

[0038] A steel pipe binding device includes: a rotating device for placing binding straps and driving the binding straps to move around a steel pipe assembly for binding; a cutting assembly including a first long arm 405 and a second long arm 4054 arranged side by side, the first long arm 405 and the second long arm 4054 being connected by a gear 4056 for driving the first long arm 405 and the second long arm 4054 to move towards each other; a transmission assembly connected to the cutting assembly for driving the cutting assembly to move into the movement trajectory of the binding strap; the first long arm 405 is provided with a clamp 7 having a cross-arranged limiting part 701, and the second long arm 4054 is provided with a cutting blade 703, the clamp 7 cooperating with the cutting blade 703 for cutting the binding strap when the limiting part 701 intercepts the binding strap to complete the binding.

[0039] Specifically, it includes a binding device 3, which includes a body rotatably equipped with a rotating device. The rotating device includes a hollow ring located in the middle of the binding device 3. One side of the hollow ring is provided with a drive roller connected to a drive device 6 and a rotating shaft for placing the binding strap. A cutting device 4 is mounted on the body and includes a transmission assembly. The transmission assembly includes a drive shaft 401 connected to the drive device 6. A housing 402 and a guide rod 403 are mounted on the drive shaft 401. The housing 402 is externally equipped with... The device has a square groove 4022, and a strip-shaped sliding groove 4031 is provided in the middle of the guide rod 403. A slider is slidably mounted on the square groove 4022. The slider is equipped with a cutting assembly, including a long arm 405 passing through the sliding groove 4031. A second long arm 4054 is arranged side by side on one side of the first long arm 405. A fixing plate 4051 with a gear 4056 and a guide part 4057 is provided at the bottom of the first long arm 405. A rack 4055 that meshes with the gear 4056 is provided on the inner side of the second long arm 4054. A tool with a guide part 4057 is provided at the end of the first long arm 405. The machine body has a clamp 7 at the limit position 701, a clamp 8 with a cutting blade 703 on the left side at the end of the long arm 4054, and an inclined surface on the guide 4057. A drive device 6 drives the drive shaft 401, causing the long arm 405 to reciprocate along the square groove 4022 driven by the guide rod 403. A contact member is provided on the inclined surface of the gear 4056 along its movement path. A rotating shaft for holding the strap is provided on the hollow ring. The limit position 701 intercepts the strap when the long arm 405 extends forward. The strap passes through the gap between the two clamps. Driven by the drive device 6, the end of the long arm 405 moves back and forth along the square groove 4022 and the rotating strip-shaped slide groove 4031 via the guide rod 403. When the long arm 405 retracts from the bottom of the square groove 4022, the contact member abuts against the inclined surface of the guide part 4057 through the contact part, which drives the gear 4056 to rotate. This causes the clamp 8 of the long arm 4054 to move relative to the clamp 7, so that the cutting blade 703 cuts the strap to complete the local binding of the workpiece.

[0040] Specifically, the strap includes adhesive tape. A tension spring 4058 is provided between gear 1 4056 and long arm 1 405 to separate chuck 1 7 and chuck 2 8. One end of tension spring 4058 is connected to gear 1 4056, and the other end of tension spring 4058 is connected to long arm 1 405. A rack 4055 that meshes with gear 1 4056 is also provided on the inner side of long arm 1 405. The racks of long arm 1 405 and long arm 2 4054 are located on both sides of gear 1 4056. Long arm 1 405 is slidably mounted on fixed plate 4051 via slide rail 4052, thereby ensuring that a smaller inclined plane drives long arm 1 405 and long arm 2 4054 to perform larger movements under the action of gear and rack. Chuck 1 also has a cutting blade 703, and the two cutting blades 703 are located in the middle of chuck 1 and chuck 2, respectively.

[0041] Specifically, the main body consists of a vertical plate and a horizontal plate set at the bottom of the vertical plate for support, and the drive device 6 is set on the horizontal plate.

[0042] Specifically, the output end of the drive device 6 is arranged horizontally, and two pulley grooves are arranged sequentially at the end of the output end. A support frame is arranged on the horizontal plate, and a connecting shaft is arranged on the support frame. A pulley groove is arranged on the left end of the connecting shaft, and a bevel gear is arranged on the right end of the connecting shaft. A gear and a bevel gear corresponding to the bevel gear are arranged on the drive roller. The bevel gear and the bevel gear are meshed.

[0043] Specifically, the hollow ring has meshing teeth on its outer side that mesh with gear two. These teeth are used to drive bevel gear one through the belt drive of drive device one 6 and connecting shaft one. Bevel gear one drives bevel gear two, thereby driving gear two to rotate and adjusting the rotation direction. This causes gear two to drive the hollow ring to rotate, so that the straps on the hollow ring can wrap around the steel pipe assembly.

[0044] Specifically, the left end of the drive shaft 401 is provided with a pulley groove 3 corresponding to another pulley groove 1 at the output end of the drive device 6, so that the pulley groove 1 and the pulley groove 3 can be connected. The bottom of the housing 402 is provided with an abutment, which includes a vertically arranged vertical rod 406. The vertical rod 406 is fixedly mounted on the horizontal plate, so that the drive device 6 can drive the connecting shaft 1 and the drive shaft 401 to rotate simultaneously, ensuring that the cutting device 4 and the binding device 3 can move synchronously.

[0045] Specifically, a groove is provided on the right end face of the housing 402, and a cover plate 4021 for supporting the drive shaft 401 is provided in the groove. The gap between the groove and the cover plate 4021 forms a square groove 4022.

[0046] Specifically, the right end of the drive shaft 401 passes through the cover plate 4021, and the guide rod 403 is fixedly installed on the drive shaft 401, with the guide rod 403 perpendicular to the drive shaft 401. A sliding cover 4053 is provided on the right side of the guide rod 403, and a second sliding groove adapted to the shape of the guide rod 403 is provided on the end face of the sliding cover 4053. A second connecting shaft is provided on the sliding cover 4053, and a slider is fixedly installed at one end of the second connecting shaft to connect the first long arm 405 to the second sliding groove and the square groove 4022. A bushing 404 is provided in the middle of the second connecting shaft, so that the other end of the second connecting shaft is provided with the first long arm 405.

[0047] Specifically, the guide rod 403 is set on the second slide groove, the bushing 404 is set in the first slide groove 4031 to reduce friction, and the slider is slidably set in the square groove 4022 so that the long arm 405 is always in a lateral state.

[0048] Specifically, a chassis is provided at the bottom of gear 4056, and the chassis is rotatably mounted on the fixed plate 4051. A guide part 4057 is provided at the bottom of the chassis, and the two ends of the guide part 4057 are provided with relatively inclined slopes. When the slider is located at the bottom of the square groove 4022 and moves backward, the abutment in its movement trajectory drives gear 4056 to rotate. At the same time, the slider drives the clamp 7 to pull back the strap, and the gear 4056 drives the clamp 8 to extend forward, so that the cutting blade 703 cuts the strap to complete one stage of binding.

[0049] Specifically, chuck 7 and chuck 8 are arranged side by side. The tail of the cutting blade 703 of chuck 7 and chuck 8 is fitted with clamping block 702 and clamping block 801. Clamping block 702 of chuck 7 protrudes so that when clamping block 702 and clamping block 801 are in contact, the contact point is located at the upper left of the edge of the cutting blade 703. The limiting part 701 is located above the clamping block of chuck 7 and protrudes towards chuck 8. The clamping block above the cutting blade 703 is used to tighten the binding strap during the movement of the steel pipe assembly. The clamping block below the cutting blade 703 is used to hold the binding strap before it wraps around the steel pipe assembly. This helps to cut the binding strap while holding the cut end of the binding strap, so that it can be driven by the rotating device to carry out the next stage of binding.

[0050] Specifically, such as Figures 6 to 8 As shown, a guide device 2 is also provided, including a second body 201. Support plates 209 are provided on both sides of the second body 201. An opening is provided at the top of the support plate 209. An insert plate 208 is provided on the left support plate 209. A guide frame 202 is provided on the support plate 209 to receive the steel pipe falling from the conveying device 1. When the weight of the steel pipe reaches a predetermined threshold, the guide frame 202 is pressed down, and the gap between the insert plate 208 and the guide frame 202 increases, so that the steel pipe can be driven to move towards the lifting device 5.

[0051] Specifically, a base plate 207 is provided below the guide frame 202, a gear set 205 is provided on the base plate 207, and a support column 206 is provided at the bottom of the base plate 207. The gear set 205 includes a driving gear provided at the top center of the base plate 207 and four driven gears provided around the driving gear. A rotating wheel 204 is provided on the driven gear. A connecting shaft 2 is provided below the driving gear. The end of the connecting shaft 2 is located below the base plate 207, and the connecting shaft 2 is connected to the drive device 2.

[0052] Specifically, a rubber sleeve is provided on the outer side of the rotating wheel 204, and a protrusion is provided on the rubber sleeve. The bottom of the protrusion is provided with a slope to provide friction and constraint during rotation. It presses the steel pipe to the lower right to prevent the steel pipes on both sides from being squeezed out, prevents the steel pipe from slipping, and presses the steel pipe downward to ensure that the guide frame 202 is low enough so that the steel pipe group passes through the gap between the insert plate 208 and the frame.

[0053] Specifically, the roller 204 has notches at both ends to allow the conveyed steel pipe assembly to stop moving intermittently when it is being bundled.

[0054] Specifically, a second vertical rod is provided on the left side of the guide frame 202, and a steering box 203 is provided at the top of the second vertical rod. A counterweight 2035 is provided inside the box 203 to pull the guide frame 202 upward to its extreme position. An insert plate 208 is inserted into the guide frame 202, and there is a gap between the insert plate 208 and the bottom of the guide frame 202. The gap is smaller than the height of the steel pipe, thus blocking the steel pipe. When the weight of the steel pipe inside the guide frame 202 is greater than that of the counterweight 2035, the guide frame 202 falls down, increasing the gap and allowing the rotating wheel 204 to contact the steel pipe. This causes several steel pipes inside the guide frame 202 to pass through the binding device 3 and move towards the lifting device 5. At the same time, the steel pipe group extends a certain distance and, under its own gravity, causes the guide frame 202 to tilt in the conveying direction. The steel pipe group then slides out quickly to complete the binding.

[0055] Specifically, a rotating shaft 2033 is provided inside the square box 203. A spiral groove is provided on the rotating shaft 2033. A sliding groove is provided on the lower left side of the rotating shaft 2033. A connecting buckle 2032 is provided on the sliding groove. One end of the connecting buckle 2032 is fixedly mounted on the guide frame 202. A pull rope 2034 is provided on the other end of the connecting buckle 2032. The pull rope 2034 passes around the spiral groove and connects to the counterweight 2035. A spring and a bracket for supporting the spring are provided at the bottom of the counterweight 2035. A roller for reducing friction can also be provided at the bottom of the insert plate 208.

[0056] The working process includes: a guide frame 202 is set on the body 201 of the guide device 2. The top of the guide frame 202 is provided with a feed port. The rotating wheels 204 are set on both sides and connected to the drive device 2. The rotating wheels 204 are driven to push the row of steel pipes to move through friction. The rotating wheels 204 are provided with notches on both sides to ensure that the steel pipes are intermittently paused during binding to ensure stable binding. A hollow ring is rotatably mounted on the body of the binding device 3. A strap is fitted with a rotating shaft at the edge of the hollow ring. The output end of the bottom drive device 6 is connected to a drive roller to rotate the hollow ring. The hollow ring with its rotating shaft drives the strap to rotate around its center. A cutting device 4 is located on one side of the hollow ring to automatically cut the strap. The cutting device 4 includes a drive shaft 401 driven by the drive device 6, and a housing 402 with a square groove 4022 is mounted on the drive shaft 401. A guide rod 403 is located at the end of the drive shaft 401, and a long arm 405 with a slider is mounted on the guide rod 403 to keep the long arm 405 parallel during movement. Figure 5The left-side view shows the arm moving up and down and back and forth under the drive of the drive shaft 401. A fixed plate 4051 with a gear 4056 and a guide 4057 is provided at the bottom of the first long arm 405. Both the first long arm 405 and the second long arm 4054 are slidably mounted on the fixed plate 4051 via slide rails 4052. A rack meshing with the gear 4056 is provided on the inner side of the first long arm 405 and the second long arm 4054. This allows the gear 4056 to rotate under the contact of the lower contact member. As the first long arm 405 moves backward, it simultaneously drives the second long arm forward. Figure 5 From the middle view to the right view, clamping blocks 702 and 801 clamp the straps, and the cutting blade 703 cuts the straps with the help of tension, thus automatically completing one stage of binding and cutting of the steel pipe group. Before hoisting, the steel pipes are automatically bundled in rows and groups to prevent them from slipping and loosening during transportation. The lifting device 5, together with the baffles on both sides, tilts and lifts the steel pipes so that they are automatically stacked under gravity to facilitate hoisting by the double-headed crane, thereby solving the problem of steel pipes slipping during transportation.

[0057] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A steel pipe binding device, characterized in that, include: A rotating device is used to place the binding strap and drive the binding strap to move around the steel pipe for binding; A cutting assembly, comprising a first long arm and a second long arm arranged side by side, the first long arm and the second long arm being connected by a gear, for driving the first long arm and the second long arm to move in opposite directions; A transmission assembly, connected to the cutting assembly, is used to drive the cutting assembly to move into the movement trajectory of the strap; The first long arm is provided with a clamp with a cross-shaped limiting part, and the second long arm is provided with a cutting blade. The clamp and the cutting blade cooperate with each other. When the limiting part intercepts the binding strap, the cutting blade cuts the binding strap to complete the binding of the steel pipe. It also includes a body, on which the rotating device is provided, and a rotating shaft is rotatably provided on the rotating device, the rotating shaft being used to place the straps; The transmission assembly includes a housing and a drive shaft. A square groove is provided on the housing, a guide rod is provided on the drive shaft, and a slider is slidably provided on the guide rod. A long arm is laterally provided on the upper part of the slider, and the slider extends into the square groove to drive the long arm to move along the square groove. The first long arm and the second long arm are slidably mounted on the fixed plate via a slide rail. The first gear is rotatably mounted on the fixed plate. The first gear is located between the first long arm and the second long arm. The first long arm and the second long arm are provided with racks that mesh with the first gear. The gear is provided with a guide part at its bottom, and the guide part is provided with an inclined surface. The body is provided with an abutment at its bottom, and the abutment is located below the square groove. The abutment is provided with an abutment part at its top, and the abutment part is located on the movement trajectory of the guide part. When the limiting part intercepts the strap, the abutment part can drive the gear to rotate. It also includes a drive device 1, which is mounted on the machine body 1 and is used to drive the long arm 1 to circulate along the square groove by the guide rod.

2. The steel pipe binding device according to claim 1, characterized in that, The machine body consists of a vertical plate and a horizontal plate disposed at the bottom of the vertical plate, and the driving device is disposed on the horizontal plate.

3. The steel pipe binding device according to claim 2, characterized in that, The output end of the drive device is arranged horizontally, and the end of the output end is provided with two pulley grooves. A support frame is provided on the horizontal plate, and a connecting shaft is provided on the support frame. A pulley groove is provided on the left end of the connecting shaft, and a bevel gear is provided on the right end of the connecting shaft. A gear and a bevel gear are provided on the drive shaft, and the bevel gear and the bevel gear mesh with each other.

4. The steel pipe binding device according to claim 3, characterized in that, The rotating device includes a hollow ring with meshing teeth on its outer side that mesh with the second gear. The second gear is driven by the first drive device in conjunction with the first connecting shaft. The second gear drives the first bevel gear, the first bevel gear drives the second gear, and the second gear drives the hollow ring to rotate.

5. The steel pipe binding device according to claim 4, characterized in that, The left end of the drive shaft is provided with a pulley groove three, and the bottom of the housing is provided with a vertical rod one, which is fixedly mounted on the horizontal plate.

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