A conveyor

Abstract

The present invention provides a conveyor, which relates to the technical field of cable conveying equipment, and solves the technical problems of poor conveying effect and low conveying efficiency of traditional cable conveyors in the prior art. The conveyor comprises a frame, a buffer and a clamping device, and a conveying device. The buffer and a clamping device comprise a lifting rod, a buffer device, a connecting rod and a clamping device which are arranged in sequence from top to bottom. A conduit is arranged on the frame, and the bottom of the lifting rod is inserted in the conduit and can be lifted and lowered relative to the conduit. The buffer device is arranged in the conduit and abuts against the lifting rod, and the two ends of the connecting rod are respectively connected to the buffer device and the clamping device; the conveying device comprises a driving device and a conveying device, and the conveying device is located below the clamping device; the conveying device of the present invention is used for conveying cables, and has high conveying efficiency. The buffer and a clamping device can buffer the vibration occurring during the transportation of the cables, and has a good conveying effect.

Description

Technical Field

[0001] The invention relates to the technical field of cable conveying equipment, and in particular to a conveyor. Background Art

[0002] A cable conveyor is a mechanical device used for cable transportation and is widely used in cable laying. Traditional cable conveyors are often heavy and large in size, making them inconvenient to carry and unable to lay small and medium-sized cables. The existing cable conveyors on the market have improved in weight and size, but in the process of transporting the cables, in order to ensure smooth transportation of the cables, their clamping devices often cause movement damage to the cables, and their conveying devices often slip after a certain period of use, all of which affect the cable transportation effect and efficiency.

[0003] A motorized cable conveyor disclosed in a Chinese patent document includes a box body, a motorized device, a track disc located inside the box body, a track arranged on the track disc, a support device, a handle and a pulley arranged on the support device. The motorized device is configured as a gasoline engine or a diesel engine. During use of the motorized cable conveyor, the cable is placed on the track, the pulley is pressed against the cable, and the motorized device drives the track to move, thereby realizing the transportation of the cable.

[0004] The applicant compared the prior art and found that there were at least the following technical problems:

[0005] 1. Use the handle to control the support device and then control the pulley to press against the cable. If it is pressed too tightly, it will cause damage to the equipment and cable and affect the transmission effect. If it is pressed too loosely, the cable will be unstable and affect the transmission efficiency.

[0006] 2. The motorized device drives the track disc to drive the track conveying cable. After a period of use, the track disc will slip with the track, affecting the transmission effect, thereby greatly affecting the conveying efficiency. Summary of the invention

[0007] The purpose of the present invention is to provide a conveyor to solve the technical problems of poor conveying effect and low conveying efficiency of traditional cable conveyors in the prior art; the preferred technical scheme among the many technical schemes provided by the present invention can produce many technical effects (the screw and the guide tube are threadedly connected to form a nut screw mechanism, which can effectively adjust the relative position of the clamping device in the vertical direction to clamp the cable; the clamping bracket is connected to the connecting rod for the installation of the clamping wheel, and the clamping wheel is directly pressed against the cable for clamping the cable; the diameter of the clamping wheel increases successively from the middle section to the two ends, so that the positioning and installation of cables of different specifications are more stable; the guide rod is used to stop the clamping device in the vertical direction with the oil-containing bearing on the one hand, and on the other hand The surface can effectively prevent the connecting rod from rotating radially during axial movement; the driving wheel, the driven wheel and the transmission chain form a chain transmission mechanism with significant transmission effect, which is convenient for transmitting the cable of the conveying track; the pull rod and the rotating nut form a nut screw mechanism, which can pull the driven shaft to slide along the guide groove to tighten the conveying track, and the operation is convenient and quick; the guide device includes a support roller and a guide roller, the support roller can support the cable and assist the conveying track for cable transportation, and the guide roller has the function of guiding the cable and correcting the cable; a positioning groove with a V-shaped cross-section is arranged in the middle of the conveying track, which further makes the positioning and installation of cables of different specifications more stable; the electric control box is used to control the drive device, which is easy to operate, etc.); see the following for details.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] The present invention provides a conveyor, comprising a frame, a buffer and clamping device and a conveying device, wherein: the buffer and clamping device comprises a lifting rod, a buffer device, a connecting rod and a clamping device which are arranged in sequence from top to bottom, a guide tube is arranged on the frame, the bottom of the lifting rod is inserted in the guide tube and can be lifted and lowered relative to the guide tube, the buffer device is arranged in the guide tube and abuts against the lifting rod, one end of the connecting rod is inserted in the guide tube and abuts against the buffer device, and the other end of the connecting rod is connected to the clamping device; the conveying device comprises a driving device and a conveying device which are connected in transmission, the driving device and the conveying device are both arranged on the frame, and the conveying device is located below the clamping device.

[0010] Preferably, a screw is provided at the bottom of the lifting rod, a thread is provided inside the conduit, and the screw is threadedly connected inside the conduit and abuts against the buffer device.

[0011] Preferably, the clamping device includes a clamping bracket and a clamping wheel rotatably arranged on the clamping bracket, wherein: the top end of the connecting rod is inserted into the conduit and connected to the buffer device; the bottom end of the connecting rod is fixedly connected to the clamping bracket; and the clamping wheel is arranged above the conveying device.

[0012] Preferably, the diameter of the pressing wheel increases gradually from the middle section to both ends.

[0013] Preferably, the buffer clamping device also includes a stopping device, which includes a guide rod and an oil-containing bearing, and a mounting hole is provided on the frame, wherein: the oil-containing bearing is fixedly arranged in the mounting hole; the guide rod passes through the oil-containing bearing and is connected to the clamping bracket, and the oil-containing bearing can limit the relative position of the guide rod.

[0014] Preferably, the conveying device includes a driving device, a driven device and a conveying belt, wherein: the driving device includes a driving wheel and a driving shaft, one end of the driving shaft is transmission-connected to the driving device, the other end of the driving shaft is rotatably arranged on the frame, and the driven wheel is fixedly sleeved on the driving shaft; the driven device includes a driven shaft and a driven wheel, both ends of the driven shaft are arranged on the frame, and the driven wheel is fixedly sleeved on the driven shaft; a transmission chain is arranged on the inner wall of the conveying belt, and the driving wheel and the driven wheel are transmission-connected via the transmission chain.

[0015] Preferably, the conveying device also includes a tensioning device, which includes a mounting frame, a pull rod and a rotating nut, and a guide groove is provided on the frame, wherein: the end of the driven shaft passes through the guide groove and is rotatably connected to the mounting frame, and the end of the driven shaft can slide along the guide groove; the mounting frame is connected to the pull rod, and a mounting plate is provided on the frame, and the pull rod passes through the mounting plate and is threadedly connected to the rotating nut.

[0016] Preferably, the conveying device also includes a guiding device, which includes a supporting roller and a guide roller, wherein: the supporting roller is arranged on the frame, the supporting roller is located at the end position of the conveying belt, and the supporting roller is arranged parallel to the driven shaft; the guide roller is vertically arranged on the frame, and the guide roller is located on both sides of the end of the conveying belt.

[0017] Preferably, a positioning groove is provided at the middle position of the conveying crawler, and the cross-sectional shape of the positioning groove is V-shaped.

[0018] Preferably, the conveyor further comprises an electric control box, which is detachably mounted on the frame and electrically connected to the conveying device; the electric control box is provided with a power switch, a running direction switch, a gear switch and an emergency stop switch.

[0019] The conveyor provided by the present invention has at least the following beneficial effects:

[0020] The conveyor comprises a frame, a buffer clamping device and a conveying device, the frame is used for supporting and installing other devices, the buffer clamping device is used for clamping cables, and the conveying device is used for conveying cables; the buffer clamping device comprises a lifting rod, a buffer device, a connecting rod and a clamping device which are arranged in sequence from top to bottom, a guide tube is arranged on the frame, the bottom of the lifting rod is inserted in the guide tube and can be lifted and lowered relative to the guide tube, the lifting rod is used to push the buffer device and the connecting rod to move downward; the buffer device is arranged in the guide tube and abuts against the lifting rod, and the buffer device can buffer the jumping of the cable during transportation; the connecting rod One end of the connecting rod is inserted into the conduit and abuts against the buffer device, and the other end of the connecting rod is connected to the clamping device. The connecting rod is used to connect the clamping device so that the clamping device can clamp the cable under the action of the lifting rod; the conveying device includes a driving device and a transmission device connected in a transmission manner, and the driving device provides power for the conveying device; the conveying device is arranged on the frame and located below the clamping device, and the conveying device is used to convey the cable; according to the present invention, the conveying device is used for conveying cables, and the conveying efficiency is high. The buffer clamping device can buffer the vibration occurring during the transportation of the cable, and the conveying effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the main structure of the present invention without the motor and the electric control box;

[0024] Figure 3 is a side cross-sectional schematic diagram of the present invention;

[0025] Figure 4 It is a side cross-sectional schematic diagram of the present invention for conveying another specification of cable;

[0026] Figure 5 The present invention Figure 4 A magnified view of part A;

[0027] Figure 6 The present invention Figure 4 A magnified view of part B;

[0028] Figure 7is a schematic cross-sectional top view of the conveying device of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the cable box of the present invention.

[0030] Reference numerals

[0031] 1. Frame; 11. Conduit; 12. Guide groove; 13. Long round hole; 2. Conveying device; 21. Driving device; 211. Motor; 212. Speed ​​reducer; 22. Conveying device; 221. Conveying crawler; 2211. Transmission chain; 2212. Positioning groove; 222. Driving shaft; 223. Driving wheel; 224. Driven shaft; 225. Driven wheel; 23. Tensioning device; 231. Pull rod; 232. Rotating nut; 233. Mounting frame; 24. Guide device; 241. Guide roller; 2411. Guide sleeve; 2412. Guide inner shaft; 242. Support roller; 2421. Support sleeve; 2422. Support inner shaft; 3. Buffer clamping device; 31. Lifting rod; 32. Buffer device; 33. Connecting rod; 34. Clamping device; 341. Clamping bracket; 342. Clamping wheel; 343. Wheel axle; 344. Bushing; 35. Stop device; 351. Guide rod; 352. Oil-containing bearing; 36. Handle; 361. Handle rod; 362. Handle body; 4. Electric control box; 41. First cable connector; 42. Second cable connector; 43. Power switch; 44. Running direction switch; 45. Gear switch; 46. Emergency stop switch. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0033] The present invention provides a conveyor, such as Figure 1-Figure 3As shown, the conveyor includes a frame 1, a buffer and clamping device 3 and a conveying device 2, wherein: the buffer and clamping device 3 includes a lifting rod 31, a buffer device 32, a connecting rod 33 and a clamping device 34 which are arranged in sequence from top to bottom, a conduit 11 is arranged on the frame 1, the bottom of the lifting rod 31 is inserted in the conduit 11 and can be lifted and lowered relative to the conduit 11, the buffer device 32 is arranged in the conduit 11 and abuts against the lifting rod 31, one end of the connecting rod 33 is inserted in the conduit 11 and connected to the buffer device 32, the other end of the connecting rod 33 is connected to the clamping device 34, the clamping device 34 can be set as a pulley, and the pulley can roll relative to the cable; the conveying device 2 includes a driving device 21 and a conveying device 22 which are transmission-connected, the driving device 21 and the conveying device 22 are both arranged on the frame 1, and the conveying device 22 is located below the clamping device 34.

[0034] In the preparation stage, the cable is placed on the conveying device 22, and the lifting rod 31 is adjusted. The lifting rod 31 moves downward along the conduit 11, the buffer device 32 and the connecting rod 33 move downward, and the clamping device 34 presses on the cable; in the working stage, the driving device 21 is turned on, the driving device 21 drives the conveying device 22 to move, and the conveying device 22 starts to convey the cable. During the cable conveying process, the buffer device 32 buffers the cable vibration; the present invention conveys the cable through the conveying device 22, adjusts the relative height of the clamping device 34 through the lifting rod 31 and the conduit 11 to compress the cable, and buffers the cable vibration during transportation through the buffer device 32, thereby effectively avoiding damage to the cable during transportation, and not only has high transportation efficiency but also good transportation effect.

[0035] As an optional implementation, Figure 2 and Figure 3 As shown, a screw is provided at the bottom of the lifting rod 31, and a thread is provided inside the catheter 11. The screw thread is connected in the catheter 11 and abuts against the buffer device 32. The lifting rod 31 and the catheter 11 form a nut-screw mechanism with significant transmission effect and self-locking function.

[0036] The conduit 11 is arranged vertically, and a guide hole is arranged axially on the conduit 11. A thread cooperating with the screw is arranged on the inner wall of the guide hole. An upper port and a lower port are arranged on the end surfaces at both ends of the conduit 11 and are respectively connected with the guide hole. The inner diameter of the upper port and the inner diameter of the lower port are both smaller than the inner diameter of the guide hole. The bottom of the lifting rod 31 is arranged in the guide hole, and the outer diameter of the screw is larger than the inner diameter of the upper port. A limiting block is arranged on the top of the connecting rod 33, and the limiting block is arranged in the guide hole. The outer diameter of the limiting block is larger than the inner diameter of the lower port.

[0037] The buffer device 32 includes a buffer spring, the top of which abuts against the screw rod, and the bottom of which is connected to the limit block via a screw.

[0038] As an optional implementation, Figure 2 and Figure 3 As shown, the clamping device 34 includes a clamping bracket 341 and a clamping wheel 342 rotatably arranged on the clamping bracket 341, wherein: the top end of the connecting rod 33 is inserted into the conduit 11 and connected to the buffer device 32; the bottom end of the connecting rod 33 is fixedly connected to the clamping bracket 341; and the clamping wheel 342 is arranged above the conveying device 22.

[0039] The middle section of the clamping bracket 341 is connected to the connecting rod 33 . The number of the clamping wheels 342 is two, and the two clamping wheels 342 are symmetrically arranged relative to the connecting rod 33 .

[0040] As an optional implementation, Figure 3 As shown, the diameter of the clamping wheel 342 increases gradually from the middle section to the two ends; the middle section of the clamping wheel 342 forms an annular V-shaped groove, and the clamping wheel 342 is made of nylon. The setting of the clamping wheel 342 can increase the contact area between the clamping wheel 342 and the cable, further ensuring the conveying effect.

[0041] like Figure 6 The present invention Figure 3 As shown in the enlarged view of part B, a wheel axle 343 is provided on the clamping bracket 341, and the clamping wheel 342 is rotatably connected to the wheel axle 343 through a bearing. Bushings 344 are provided at both ends of the wheel axle 343, and the bushings 344 are connected to the wheel axle 343 through threaded fasteners. The bushings 344 are provided on the clamping bracket 341.

[0042] As an optional implementation, Figure 3 and Figure 5 The present invention Figure 3 As shown in the enlarged view of part A, the buffer clamping device 3 also includes a stopping device 35, which includes a guide rod 351 and an oil-containing bearing 352. A mounting hole is provided on the frame 1, wherein: the oil-containing bearing 352 is fixedly arranged in the mounting hole; the bottom of the guide rod 351 passes through the oil-containing bearing 352 and is fixedly connected to the clamping bracket 341, and the oil-containing bearing 352 can limit the relative position of the guide rod 351. Only when the friction force of the oil-containing bearing 352 is overcome can the guide rod 351 slide relative to the oil-containing bearing 352, which has a stopping function and can effectively prevent the clamping bracket 341 from slipping; on the one hand, the guide rod 351 cooperates with the oil-containing bearing 352 to stop the clamping bracket 341, and on the other hand, it can effectively prevent the connecting rod 33 from radially rotating during the up and down movement.

[0043] Two mounting holes are symmetrically arranged on the frame 1 on both sides of the conduit 11 , each of which is provided with an oil-containing bearing 352 . The number of guide rods 351 is set to two, and the two guide rods 351 pass through the corresponding oil-containing bearings 352 and are connected to both sides of the clamping bracket 341 .

[0044] As an optional implementation, Figure 2 As shown, a handle 36 is provided at one end of the lifting rod 31 away from the screw rod. The handle 36 includes a handle rod 361 and a handle body 362 . The handle rod 361 is vertically arranged at the top end of the lifting rod 31 , and the handle body 362 is arranged at the end of the handle rod 361 .

[0045] As an optional implementation, Figure 1 and Figure 7 As shown in the top cross-sectional schematic diagram of the conveying device of the present invention, the conveying device 22 includes a driving device, a driven device and a conveying belt 221, wherein: the driving device includes a driving wheel 223 and a driving shaft 222, one end of the driving shaft 222 is connected to the driving device 21 by transmission, and the other end of the driving shaft 222 is rotatably set on the frame 1 through a bearing, and the driven wheel 225 is fixedly sleeved on the driving shaft 222; the driven device includes a driven shaft 224 and a driven wheel 225, both ends of the driven shaft 224 are set on the frame 1, and the driven wheel 225 is fixedly sleeved on the driven shaft 224; a transmission chain 2211 is set on the inner wall of the conveying belt 221, and the driving wheel 223 and the driven wheel 225 are connected by transmission through the transmission chain 2211, and the conveying belt 221, the driving wheel 223 and the driven wheel 225 form a chain transmission mechanism.

[0046] like Figure 3 As shown, at least two transmission chains 2211 are fixedly arranged on the inner wall of the conveyor belt 221, the number of driving wheels 223 and driven wheels 225 is the same as the number of transmission chains 2211, and the driving wheels 223 and the driven wheels 225 are connected to the conveyor belt 221 through corresponding transmission chains 2211; the number of transmission chains 2211 is set to two, and the transmission chain 2211 adopts a short pitch precision roller chain with 19 teeth, a pitch of 19.05mm, a pitch circle of 115.74mm, and a maximum conveying speed of the conveyor belt 221 of 20.4m / min.

[0047] As an optional implementation, Figure 2The conveying device 2 also includes a tensioning device 23, which includes a mounting frame 233, a pull rod 231 and a rotating nut 232. The frame 1 is provided with a guide groove 12, wherein: the end of the driven shaft 224 passes through the guide groove 12 and is rotatably connected to the corresponding mounting frame 233 through a bearing, and the end of the driven shaft 224 can slide along the guide groove 12; the mounting frame 233 is connected to the pull rod 231, and a mounting plate is provided on the frame 1, and the pull rod 231 passes through the mounting plate and is threadedly connected to the rotating nut 232; the rotating nut 232 is set as a butterfly nut, and the rotating nut 232 is rotated, and the pull rod 231 slides along the axial direction, thereby adjusting the relative position of the driven shaft 224. The pull rod 231 and the rotating nut 232 are threadedly matched, which is convenient to operate on the one hand, and can lock the relative position of the driven shaft 224 on the other hand.

[0048] As an optional implementation, Figure 7 As shown, the conveying device 2 also includes a guide device 24, and the guide device 24 includes a support roller 242 and a guide roller 241, wherein: both ends of the support roller 242 are arranged on the frame 1, the support roller 242 is located at the end position of the conveying belt 221, and the support roller 242 is arranged parallel to the driven shaft 224; the support roller 242 includes a support sleeve 2421 and a support inner shaft 2422, and both ends of the support inner shaft 2422 are fixedly arranged on the frame 1, and the support sleeve 2421 is mounted on the support inner shaft 2422 through a bearing sleeve.

[0049] like Figure 7 As shown, the guide roller 241 is vertically arranged on the frame 1, and the guide roller 241 is located on both sides of the end of the conveyor belt 221. The number of the guide rollers 241 is an even number, and all the guide rollers 241 are evenly divided into two groups. The two groups of guide rollers 241 are symmetrically arranged relative to the conveyor belt 221. An oblong hole 13 is arranged on the frame 1 at the end of the conveyor belt 221. The oblong hole 13 is arranged parallel to the driven shaft 224. The bottom end of the guide roller 241 passes through the oblong hole 13 and is threadedly connected to the locking nut. The relative position of the guide roller 241 can be adjusted along the oblong hole 13 according to cables of different specifications.

[0050] like Figure 2 As shown, the guide roller 241 includes a guide sleeve 2411 and a guide inner shaft 2412. Brackets are provided at both ends of the frame 1, and an oblong hole 13 is provided on the bracket. The bottom end of the guide inner shaft 2412 passes through the oblong hole 13 and is threadedly connected to the locking nut. The guide sleeve 2411 is mounted on the guide inner shaft 2412 through a bearing sleeve.

[0051] As an optional implementation, Figure 3 As shown, a positioning groove 2212 is provided in the middle of the conveying crawler 221 . The cross-section of the positioning groove 2212 is V-shaped. The provision of the positioning groove 2212 enables cables of different specifications to be placed firmly.

[0052] As an optional implementation, Figure 7 As shown, the driving device 21 includes a motor 211 and a reducer 212. The output end of the reducer 212 is drivingly connected to the driving shaft 222. The motor 211 is a unidirectional motor or a bidirectional motor.

[0053] Preferably, the motor 211 adopts a Y2-90S-4-B5 motor with a motor power of 1.1KW and a motor speed of 1400r / min. The reducer 212 adopts a NMRV075-F1-25-B3 worm gear reducer with a speed ratio of 25, a maximum output speed of 56r / min, and an output torque of 187.67Nm.

[0054] As an optional implementation, Figure 8 As shown in the schematic diagram of the structure of the electric control box of the present invention, the conveyor also includes an electric control box 4, which is detachably arranged on the frame 1, and the top and bottom of the electric control box 4 are provided with folded edges, and can be detachably arranged on the frame 1 by screws; the electric control box 4 is electrically connected to the conveying device 2, and a first cable connector 41 and a second cable connector 42 are provided on one side of the electric control box 4, the first cable connector 41 is electrically connected to the driving device 21, and the second cable connector 42 is connected to the power supply; the electric control box 4 is provided with a power switch 43, a running direction switch 44, a gear switch 45 and an emergency stop switch 46, the running direction switch 44 is used to control the output direction of the driving device 21, and then control the conveying direction of the conveying device 22, when the gear switch 45 includes four gears, the first gear is the highest gear, and the fourth gear is the lowest gear.

[0055] Working process:

[0056] Preparation stage:

[0057] Adjustment of the clamping device: Place the cable on the positioning groove 2212 of the conveyor crawler 221, and according to actual needs (cable outer diameter 10-130mm), turn the handle 36 forward, the lifting rod 31 moves downward along the guide tube 11, the buffer spring and the connecting rod 33 move downward, the clamping bracket 341 moves downward, and the middle section of the clamping wheel 342 presses against the top of the cable;

[0058] Guide roller adjustment: Loosen the locking nut matched with the guide roller 241, slide the bottom of the guide roller 241 on both sides of the cable along the oblong hole 13 to a suitable position, make the guide roller 241 butt against the cable, and tighten the locking nut of the guide roller 241;

[0059] Conveyor belt adjustment: Rotate the rotating nut 232, the pull rod 231 slides along the axial direction, driving the driven shaft 224 to slide along the guide groove 12, and the conveyor belt 221 is tightened.

[0060] Working stage: According to actual needs, select the appropriate gear through the gear switch 45, select the appropriate conveying direction through the running direction switch 44, turn on the power switch 43, the driving device 21 drives the conveying device 22 to move, and the cable starts to be conveyed.

[0061] After the work is completed: turn off the power switch 43, reset the operating gear switch 45, reset the operating direction switch 44, rotate the handle 36 in the opposite direction, move the lifting rod 31 upward and return to the initial position, and push the clamping bracket 341 upward with both hands to return to the initial position.

[0062] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A conveyor, characterized in that: It comprises a frame (1), a buffer pressing device (3) and a conveying device (2), wherein: The buffer pressing device (3) comprises a lifting rod (31), a buffer device (32), a connecting rod (33) and a pressing device (34) which are arranged in sequence from top to bottom; a guide tube (11) is arranged on the frame (1); the bottom of the lifting rod (31) is inserted into the guide tube (11) and can be lifted and lowered relative to the guide tube (11); the buffer device (32) is arranged in the guide tube (11) and abuts against the lifting rod (31); one end of the connecting rod (33) is inserted into the guide tube (11) and connected to the buffer device (32); and the other end of the connecting rod (33) is connected to the pressing device (34); The conveying device (2) comprises a driving device (21) and a conveying device (22) which are connected in a transmission manner, the driving device (21) and the conveying device (22) are both arranged on the frame (1), and the conveying device (22) is located below the pressing device (34); The clamping device (34) comprises a clamping bracket (341) and a clamping wheel (342) rotatably arranged on the clamping bracket (341), wherein: the top end of the connecting rod (33) is inserted into the conduit (11) and connected to the buffer device (32); the bottom end of the connecting rod (33) is fixedly connected to the clamping bracket (341); the clamping wheel (342) is arranged above the conveying device (22); the diameter of the clamping wheel (342) increases from the middle section to the positions of the two ends; The transmission device (22) comprises a driving device, a driven device and a transmission crawler (221), wherein: the driving device comprises a driving wheel (223) and a driving shaft (222), one end of the driving shaft (222) is transmission-connected to the driving device (21), the other end of the driving shaft (222) is rotatably arranged on the frame (1), and the driving wheel (223) is fixedly sleeved on the driving shaft (222); the driven device comprises a driven shaft (224) and a driven wheel (225), both ends of the driven shaft (224) are arranged on the frame (1), and the driven wheel (225) is fixedly sleeved on the driven shaft (224); a transmission chain (2211) is arranged on the inner wall of the transmission crawler (221), and the driving wheel (223) and the driven wheel (225) are transmission-connected via the transmission chain (2211); A positioning groove (2212) is provided in the middle of the conveying crawler belt (221), and the cross-sectional shape of the positioning groove (2212) is V-shaped; A screw rod is provided at the bottom of the lifting rod (31), a limit block is provided at the top of the connecting rod (33), and the buffer device (32) comprises a buffer spring, the top of the buffer spring abuts against the screw rod, and the bottom of the buffer spring is connected to the limit block via a screw; The driving device (21) comprises a motor (211) and a reducer (212); the output end of the reducer (212) is drivingly connected to the driving shaft (222); and the motor (211) is a unidirectional motor or a bidirectional motor.

2. The conveyor according to claim 1, characterized in that The interior of the conduit (11) is provided with a thread, and the screw is threadedly connected inside the conduit (11) and abuts against the buffer device (32).

3. The conveyor according to claim 1, characterized in that: The buffer pressing device (3) further comprises a stopper (35), wherein the stopper (35) comprises a guide rod (351) and an oil-containing bearing (352), and a mounting hole is provided on the frame (1), wherein: The oil-containing bearing (352) is fixedly arranged in the mounting hole; The guide rod (351) passes through the oil-containing bearing (352) and is connected to the clamping bracket (341), and the oil-containing bearing (352) can limit the relative position of the guide rod (351).

4. The conveyor according to claim 1, characterized in that: The conveying device (2) further comprises a tensioning device (23), wherein the tensioning device (23) comprises a mounting frame (233), a pull rod (231) and a rotating nut (232), and a guide groove (12) is provided on the frame (1), wherein: The end of the driven shaft (224) passes through the guide groove (12) and is rotatably connected to the mounting frame (233), and the end of the driven shaft (224) can slide along the guide groove (12); The mounting frame (233) is connected to the pull rod (231); a mounting plate is provided on the frame (1); and the pull rod (231) passes through the mounting plate and is threadedly connected to the rotating nut (232).

5. The conveyor according to claim 4, characterized in that The conveying device (2) further comprises a guiding device, wherein the guiding device comprises a supporting roller (242) and a guiding roller (241), wherein: The support roller (242) is arranged on the frame (1), the support roller (242) is located at the end of the conveying crawler (221), and the support roller (242) is arranged parallel to the driven shaft (224); The guide roller (241) is vertically arranged on the frame (1), and the guide roller (241) is located on both sides of the end of the conveying crawler belt (221).

6. The conveyor according to claim 1, characterized in that The conveyor further comprises an electric control box (4), wherein the electric control box (4) is detachably arranged on the frame (1), and the electric control box (4) is electrically connected to the conveying device (2); The electric control box (4) is provided with a power switch (43), a running direction switch (44), a gear switch (45) and an emergency stop switch (46).

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