A thin-walled steel pipe feeding device

Abstract

The present invention discloses a feeding device for thin-walled steel pipes. The key points of its technical solution include a support base, a discharging device, a storage tank, and a conveying device sequentially arranged on the support base along the length direction of the support base; the conveying device includes a mounting plate, a guide rail, a clamping assembly, and a conveying mechanism. The mounting plate and the guide rail are respectively arranged on the support base along the width direction of the support base. A sliding groove extending along the length direction of the guide rail is provided on the side of the guide rail facing away from the support base, and a sliding groove extending along the length direction of the mounting plate is provided on the side of the mounting plate close to the guide rail. The clamping assembly is slidably connected to the sliding groove, and one end of it extends into the sliding groove. A first through hole and a second through hole are respectively provided at one end of the guide rail close to the storage device and at one end away from the storage device. The present invention is provided with a clamping assembly for clamping steel pipes, and after the clamping assembly clamps the steel pipes, the precise conveying is completed through the conveying mechanism.

Description

Technical Field

[0001] The present invention relates to the field of steel pipe processing equipment, and more specifically, to a feeding device for thin-walled steel pipes. Background Art

[0002] Steel pipes are a very widely used basic product, mainly applied in industries such as metal manufacturing, general equipment, special equipment, transportation equipment, electrical machinery, electric power, and heat power. Thin-walled steel pipes are usually used for transporting fluids and powdery solids, exchanging heat energy, manufacturing mechanical parts and containers, etc.

[0003] Cutting or bending pipes is an important process in the production of thin-walled steel pipe parts, and usually requires the assistance of a feeding device to complete. Manual feeding is the most common feeding method. The steel pipe is sent to the conveyor belt by the handling personnel, and the placement position of the steel pipe is adjusted. Then, the conveyor belt transports the steel pipe to the steel pipe processing equipment for processing. However, this operation method is time-consuming and laborious, with low production efficiency, does not conform to mechanized and batch production, and requires a large amount of labor productivity, resulting in high production costs. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a feeding device for thin-walled steel pipes. The feeding device for thin-walled steel pipes is provided with two arc-shaped clamping plates for clamping the steel pipe. After the two arc-shaped clamping plates clamp the steel pipe, precise transmission is completed through a transmission mechanism.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A feeding device for thin-walled steel pipes, including a support base and a discharging device, a storage tank, and a transmission device sequentially arranged on the support base along the length direction of the support base. The storage tank is used for storing a plurality of steel pipes, and the discharging device is used for transporting the plurality of steel pipes in the storage tank one by one into the transmission device. The transmission device includes a mounting plate, a guide rail, a clamping assembly, and a transmission mechanism. The mounting plate and the guide rail are respectively arranged on the support base along the width direction of the support base. A sliding groove is arranged on the side of the guide rail facing away from the support base, and the extending direction of the sliding groove is parallel to the length direction of the support base. A chute extending along the length direction of the mounting plate is arranged on the side of the mounting plate close to the guide rail. The clamping assembly is slidably connected to the chute, and one end of it extends into the sliding groove. A first through hole and a second through hole are respectively arranged at one end of the guide rail close to the storage tank and at one end away from the storage tank. When a single steel pipe in the storage tank enters the sliding groove through the first through hole, the clamping assembly clamps the steel pipe, and the transmission mechanism drives the clamping assembly to move along the chute away from the storage tank, driving the steel pipe to move along the sliding groove until it extends out of the second through hole.

[0006] The clamping assembly includes a first connecting rod, a first collar, a slider, and two arc-shaped clamping plates. The first connecting rod is located above the sliding groove. One end of the slider is connected to the end of the first connecting rod away from the support base, and the other end extends towards the sliding groove. The slider is slidably connected to the sliding groove. The arc-shaped clamping plate includes a hinge rod for hinging to one end of the first connecting rod close to the sliding cavity. The arc-shaped clamping plate is hinged to the first connecting rod through the hinge rod. The two arc-shaped clamping plates are located in the sliding cavity. One arc-shaped clamping plate is inclined towards the mounting plate relative to the first connecting rod, and the other arc-shaped clamping plate is inclined away from the mounting plate relative to the first connecting rod. A clamping cavity for clamping the steel pipe is formed between the two arc-shaped clamping plates. The first collar is slidably connected to the first connecting rod. The conveying mechanism drives the first collar to move along the first connecting rod towards the support base until the inner wall of the first collar abuts against the outer walls of the two hinge rods, and the two arc-shaped clamping plates close to clamp the steel pipe extending from the first collar. When the first collar moves away from the support base until the inner wall of the first collar disengages from the two hinge rods, the two arc-shaped clamping plates open to release the clamping of the steel pipe.

[0007] As a further improvement of the present invention, the conveying mechanism is located between the first connecting rod and the mounting plate and is arranged on the mounting plate. The conveying mechanism includes a rotating motor, a second collar, a second connecting rod, a spring, and a hinge plate. The second collar is vertically rotatably arranged on the mounting plate. The second collar is slidably sleeved with the second connecting rod. One end of the second connecting rod is fixedly provided with the hinge plate, and the hinge plate is rotatably connected to the first collar through a hinge shaft. The rotating motor is fixed at the middle position of the mounting plate, and its output shaft is connected to the second collar to drive the second collar to rotate. The spring is sleeved on the second connecting rod and abuts between the second collar and the hinge plate. The spring is used to have a deformation pressure on the hinge plate to move away from the second collar. When the rotating motor is started, the second collar rotates, driving the first collar to move along the first connecting rod towards the support base until the inner wall of the first collar abuts against the outer walls of the two hinge rods, and the two arc-shaped clamping plates begin to close. When the first collar moves to abut against the two arc-shaped clamping plates, the two arc-shaped clamping plates clamp the steel pipe extending from the first through hole. The second collar continues to rotate, the spring compresses, the second connecting rod slides in the second collar away from the clamping assembly, and drives the first connecting rod to move along the sliding groove away from the storage device until the two arc-shaped clamping plates move to the second through hole, and the steel pipe extends from the second through hole. The second collar continues to rotate and drives the first collar to move away from the support base along the first connecting rod. The inner wall of the first collar disengages from the hinge rod, and the two arc-shaped clamping plates open to release the clamping of the steel pipe.

[0008] As a further improvement of the present invention, a main receiving groove is provided on a surface of the storage bin facing away from the support base. The main receiving groove extends in a zigzag shape along the height direction of the storage bin. The main receiving groove is used to receive a plurality of steel pipes with the axial direction consistent with the length direction of the support base. The storage bin includes a first side plate on the side away from the mounting plate. A secondary receiving groove for receiving a single steel pipe is provided on the first side plate. The secondary receiving groove communicates with one end of the main receiving groove close to the support base. Third through holes and fourth through holes are respectively provided at one end of the first side plate close to the discharging device and at one end away from the discharging device. Both the third through hole and the fourth through hole communicate with the secondary receiving groove and are coaxially arranged with the first through hole. The third through hole is for one end of the discharging device to extend into to drive the steel pipe in the secondary receiving groove to move. The fourth through hole is for the steel pipe in the secondary receiving groove to extend out, and extend into the first through hole and be located between the two arc-shaped clamping plates.

[0009] As a further improvement of the present invention, the discharging device includes a telescopic motor and a push rod. The telescopic motor is arranged on the support base. The push rod is located on the side of the telescopic motor close to the secondary receiving groove and is connected to its output end. When the telescopic motor is started, the push rod moves towards the storage bin until it extends into the third through hole and drives the steel pipe in the secondary receiving groove to move. One end of the steel pipe away from the discharging device sequentially passes through the fourth through hole and the first through hole, and then the steel pipe is transported by the conveying device and separated from the secondary receiving groove. When the telescopic motor controls the push rod to move away from the storage bin until the push rod disengages from the secondary receiving groove, a single steel pipe in the main receiving groove close to the secondary receiving groove enters the secondary receiving groove.

[0010] As a further improvement of the present invention, the first side plate includes a first groove wall and a second groove wall located on the upper and lower sides of the secondary receiving groove. Ball bearings for assisting the movement of the steel pipe are provided on both the first groove wall and the second groove wall.

[0011] As a further improvement of the present invention, rubber sheets are provided on the inner walls of the two arc-shaped clamping plates.

[0012] Advantages of the present invention: In the present invention, by providing the clamping assembly and the conveying mechanism, before the steel pipe moves along the guide rail, the two arc-shaped clamping plates have already clamped the steel pipe in advance, so that during the subsequent conveying of the steel pipe, it is not easy to deviate. Compared with the prior art, it avoids the steel pipe rolling on the conveyor belt, resulting in the deviation of the actual conveying position from the preset position; compared with manual conveying, it improves the efficiency and saves labor costs, meeting the requirements of mechanized and batch production. Description of the Drawings

[0013] Figure 1 It is a front sectional view of the present invention longitudinally cutting the first side plate and the guide rail;

[0014] Figure 2 It is an enlarged front sectional view of the present invention longitudinally cutting the first side plate and the guide rail;

[0015] Figure 3 Side cross-sectional view of two arc-shaped clamping plates in the open state located on the guide rail;

[0016] Figure 4 Side cross-sectional view of two arc-shaped clamping plates in the closed state located on the guide rail;

[0017] Figure 5 Side cross-sectional view of the storage bin;

[0018] Figure 6 is Figure 5 Enlarged view of part A in

[0019] Reference numerals: 1, support base; 2, storage bin; 20, main receiving groove; 21, first side plate; 200, secondary receiving groove; 211, first groove wall; 212, second groove wall; 213, third through hole; 214, fourth through hole; 215, ball; 4, discharging device; 41, telescopic motor; 42, push rod; 3, conveying device; 31, mounting plate; 310, sliding groove; 32, guide rail; 321, first through hole; 322, second through hole; 320, sliding groove; 33, clamping assembly; 331, first connecting rod; 332, first collar; 333, slider; 334, arc-shaped clamping plate; 335, hinge rod; 330, clamping cavity; 34, conveying mechanism; 341, rotating motor; 342, second collar; 343, second connecting rod; 344, spring; 345, hinge plate. Detailed implementation manners

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The same components are denoted by the same reference numerals.

[0021] Refer to Figures 1 to 6As shown in the figure, a feeding device for thin-walled steel pipes in this embodiment includes a support base 1, a discharging device 4, a storage bin 2, and a conveying device 3 that are sequentially arranged on the support base 1 along the length direction of the support base 1. The storage bin 2 is used to store a plurality of steel pipes, and the discharging device 4 is used to transport the plurality of steel pipes in the storage bin 2 one by one into the conveying device 3. The conveying device 3 includes a mounting plate 31, a guide rail 32, a clamping assembly 33, and a conveying mechanism 34. The mounting plate 31 and the guide rail 32 are respectively arranged on the support base 1 along the width direction of the support base 1. A sliding groove 320 is provided on the side of the guide rail 32 facing away from the support base 1, and the extending direction of the sliding groove 320 is parallel to the length direction of the support base 1. A chute 310 extending along the length direction of the mounting plate 31 is provided on the side of the mounting plate 31 close to the guide rail 32. The clamping assembly 33 is slidably connected to the chute 310, and one end of it extends into the sliding groove 320. A first through hole 321 and a second through hole 322 are respectively provided at one end of the guide rail 32 close to the storage bin 2 and at the end away from the storage bin 2. When a single steel pipe in the storage bin 2 enters the sliding groove 320 through the first through hole 321, the clamping assembly 33 clamps the steel pipe, and the conveying mechanism 34 drives the clamping assembly 33 to move away from the storage bin 2 along the chute 310, driving the steel pipe to move along the sliding groove 320 until it extends out of the second through hole 322.

[0022] The clamping assembly 33 includes a first connecting rod 331, a first collar 332, a slider 333, and two arc-shaped clamping plates 334. The first connecting rod 331 is located above the sliding groove 320. One end of the slider 333 is connected to the end of the first connecting rod 331 away from the support base 1, and the other end extends towards the chute 310. The slider 333 is slidably connected to the chute 310. The arc-shaped clamping plate 334 includes a hinged rod 335 for hinging at one end of the first connecting rod 331 close to the sliding cavity. The arc-shaped clamping plate 334 is hinged to the first connecting rod 331 through the hinged rod 335. The two arc-shaped clamping plates 334 are located in the sliding cavity. One arc-shaped clamping plate 334 is inclined towards the mounting plate 31 relative to the first connecting rod 331, and the other arc-shaped clamping plate 334 is inclined away from the mounting plate 31 relative to the first connecting rod 331. A clamping cavity 330 for clamping the steel pipe is formed between the two arc-shaped clamping plates 334. The first collar 332 is slidably connected to the first connecting rod 331. The conveying mechanism 34 drives the first collar 332 to move along the first connecting rod 331 towards the support base 1 until the inner wall of the first collar 332 abuts against the outer walls of the two hinged rods 335, and the two arc-shaped clamping plates 334 close to clamp the steel pipe extending out of the first collar 332. When the first collar 332 moves away from the support base 1 until the inner wall of the first collar 332 disengages from the two hinged rods 335, the two arc-shaped clamping plates 334 open to release the clamping of the steel pipe.

[0023] In the initial state of this embodiment, the two arc-shaped clamping plates 334 are located in the sliding groove 320 of the guide rail 32 and on the side of the sliding groove 320 close to the first through hole 321. One end of the hinge rod 335 is connected to the arc-shaped clamping plate 334, and the other end is hinged to one end of the first connecting rod 331 close to the support base 1. When the two arc-shaped clamping plates 334 are in an open state, the clamping cavity 330 formed by the two arc-shaped clamping plates 334 can allow a steel pipe to pass through. After the discharging device 4 drives a single steel pipe to pass through the first through hole 321 and the clamping cavity 330, there is a gap between the two arc-shaped clamping plates 334 and the steel pipe. Rubber pads can be arranged on the inner walls of the two arc-shaped clamping plates 334 so that the outer wall of the steel pipe will not be scratched when the two arc-shaped clamping plates 334 clamp the steel pipe subsequently. In this embodiment, the conveying mechanism 34 can be set as a first telescopic cylinder and a second telescopic cylinder. The first telescopic cylinder is arranged on the side of the mounting plate 31 facing the guide rail 32, and the second telescopic cylinder is arranged on the output end of the first telescopic cylinder. The second telescopic cylinder controls the movement of the first collar 332 in the vertical direction, while the second telescopic cylinder controls the movement of the first telescopic cylinder, the first collar 332 and the first connecting rod 331 in the horizontal direction. When it is necessary to convey the steel pipe, the conveying mechanism 34 drives the first collar 332 to move along the first connecting rod 331 close to the support base 1 until the inner wall of the first collar 332 abuts against the outer walls of the two hinge rods 335. At this time, the two arc-shaped clamping plates 334 begin to close, and the gap between the steel pipe and the two arc-shaped clamping plates 334 decreases until the two arc-shaped clamping plates 334 clamp the steel pipe. At this time, the inner wall of the first collar 332 abuts against the two arc-shaped clamping plates 334. The conveying mechanism 34 drives the first collar 332 to stop moving and drives the first collar 332 and the first connecting rod 331 to move away from the storage device 2, driving the steel pipe to move along the sliding groove 320. During the movement of the steel pipe, the end away from the storage device 2 extends out of the second through hole 322. When the two arc-shaped clamping plates 334 move to abut against the inner wall of the guide rail 32 on the side away from the storage device 2, the steel pipe has extended out of the second through hole 322. The conveying mechanism 34 drives the first connecting rod 331 to stop moving and drives the first collar 332 to move away from the support base 1. When the inner wall of the first collar 332 is separated from the outer walls of the two hinge rods 335, the two arc-shaped clamping plates 334 open to release the clamping of the steel pipe. A processing device used in processes such as pipe cutting and pipe bending can be placed on the side where the steel pipe extends out of the second through hole 322. After the processing device grabs the steel pipe in the released clamping state, the next processing is carried out; or a conveying device 3 with the same structure can be arranged on the side where the steel pipe extends out of the second through hole 322. When the steel pipe extends out of the second through hole 322, it extends into the guide rail 32 of the next conveying device 3 at the same time. By repeating the above operations, the steel pipe continues to move along the next guide rail 32 until it extends out of the next second through hole 322, so that the conveying distance of the steel pipe is increased.

[0024] In the present invention, by providing the clamping assembly 33 and the conveying mechanism 34, before the steel pipe moves along the guide rail 32, the two arc-shaped clamping plates 334 have already clamped the steel pipe in advance, so that during the subsequent conveying of the steel pipe, it is not easy to deviate. Compared with the prior art, it avoids the rolling of the steel pipe on the conveyor belt, resulting in the deviation of the actual conveying position from the preset position; compared with manual conveying, it improves the efficiency and saves labor costs, meeting the requirements of mechanized and batch production.

[0025] As a specific embodiment of the improvement, the conveying mechanism 34 is located between the first connecting rod 331 and the mounting plate 31 and is arranged on the mounting plate 31. The conveying mechanism 34 includes a rotating motor 341, a second collar 342, a second connecting rod 343, a spring 344, and a hinge plate 345. The second collar 342 is vertically rotatably arranged on the mounting plate 31. The second collar 342 is slidably sleeved on the second connecting rod 343. One end of the second connecting rod 343 is fixedly provided with the hinge plate 345. The hinge plate 345 is rotatably connected to the first collar 332 through a hinge shaft. The rotating motor 341 is fixed at the middle position of the mounting plate 31, and its output shaft is connected to the second collar 342 to drive the second collar 342 to rotate. The spring 344 is sleeved on the second connecting rod 343 and is abutted between the second collar 342 and the hinge plate 345. The spring 344 is used to have a deformation pressure on the hinge plate 345 to move away from the second collar 342. When the rotating motor 341 is started, the second collar 342 rotates, driving the first collar 332 to move along the first connecting rod 331 close to the support base 1. Until the inner wall of the first collar 332 abuts against the outer walls of the two hinge rods 335, the two arc-shaped clamping plates 334 begin to close. When the first collar 332 moves to abut against the two arc-shaped clamping plates 334, the two arc-shaped clamping plates 334 clamp the steel pipe extending from the first through hole 321. The second collar 342 continues to rotate, and the spring 344 compresses the second connecting rod 343 to slide backward in the second collar 342 away from the clamping assembly 33, and drives the first connecting rod 331 to move along the chute 310 away from the storage tank 2 until the two arc-shaped clamping plates 334 move to the second through hole 322, and the steel pipe extends out from the second through hole 322. The second collar 342 continues to rotate and drives the first collar 332 to move away from the support base 1 along the first connecting rod. The inner wall of the first collar 332 is separated from the hinge rod 335, and the two arc-shaped clamping plates 334 open to release the clamping of the steel pipe. The second collar 342 continues to rotate to drive the first connecting rod 331 to reset to a position close to the first through hole 321.In the initial state of this embodiment, the end of the second connecting rod 343 close to the storage device 2 is in a state of tilting upward away from the support seat 1. The first collar 332 is located on the side of the first connecting rod 331 away from the support seat 1. Under the elastic force of the spring 344, the slider 333 abuts against the inner wall of the chute 310 on the side close to the storage device 2, and the two arc-shaped clamping plates 334 also abut against the inner wall of the guide rail 32 close to the storage device 2. When the rotating motor 341 is turned on, the end of the second collar 342 connected to the output end of the rotating motor 341 starts to rotate towards the support seat 1. Due to the abutment between the slider 333 and the chute 310 and the abutment between the two arc-shaped clamping plates 334 and the inner wall of the guide rail 32 close to the storage device 2, the position of the first connecting rod 331 remains unchanged at the beginning. The first connecting rod 331 can be arranged perpendicular to the support seat 1. The first collar 332 moves along the first connecting rod 331 towards the support seat 1, and the spring 344 starts to shorten. The end of the second connecting rod 343 away from the hinge plate 345 extends out of the second collar 342 until the first collar 332 moves to a position where the second connecting rod 343 is perpendicular to the first connecting rod 331. At this time, the spring 344 is compressed to the shortest. The second collar 342 continues to rotate, driving the first collar 332 to continue moving along the first connecting rod 331 towards the support seat 1, and the spring 344 starts to elongate again. The end of the second connecting rod 343 away from the hinge plate 345 retracts towards the second collar 342 until the inner wall of the first collar 332 abuts against the outer walls of the two hinge rods 335, and the two arc-shaped clamping plates 334 start to close. When the first collar 332 moves to abut against the two arc-shaped clamping plates 334, the two arc-shaped clamping plates 334 have clamped the steel pipe extending out of the first through hole 321. The second collar 342 continues to rotate and drives the first connecting rod 331 to move along the chute 310 away from the storage device 2, and the spring 344 deforms. The process of this deformation is similar to the process of the spring 344 deforming when the first collar 332 moves along the first connecting rod 331. Until the two arc-shaped clamping plates 334 move to abut against the inner wall of the guide rail 32 away from the storage device 2, the steel pipe has extended out of the second through hole 322. The second collar 342 continues to rotate and drives the first collar 332 to move along the first connecting rod away from the support seat 1. The inner wall of the first collar 332 is separated from the hinge rod 335, and the two arc-shaped clamping plates 334 open to release the clamping of the steel pipe. At this time, after the processing device grabs the steel pipe in the unclamped state, it proceeds to the next processing step; or a conveying device 3 with the same structure can be arranged on the side where the steel pipe extends out of the second through hole 322. When the steel pipe extends out of the second through hole 322, it also extends into the guide rail 32 of the next conveying device 3. Repeat the above operations. After the steel pipe is taken away, the second collar 342 continues to rotate, driving the first connecting rod 331 to move along the chute 310 towards the storage device 2, returning to the initial state, and then repeating the above operations to convey the next steel pipe.

[0026] In the present invention, the conveyor mechanism 34 is provided. After the rotary motor 341 is started, during the process of driving the movement of the first collar 332, the three steps of clamping the steel pipe, conveying the steel pipe, and releasing the clamping state of the steel pipe are completed at one time, greatly improving the working efficiency, being suitable for industrial assembly line production, and only using one rotary motor 341 as the power source, saving costs.

[0027] As a specific embodiment of the improvement, a main receiving groove 20 is provided on one side of the storage box 2 facing away from the support base 1. The main receiving groove 20 extends in a zigzag shape along the height direction of the storage box 2. The main receiving groove 20 is used to accommodate a plurality of steel pipes with the axial direction consistent with the length direction of the support base 1. The storage box 2 includes a first side plate 21 on the side away from the mounting plate 31. A secondary receiving groove 200 is provided on the first side plate 21. The secondary receiving groove 200 communicates with one end of the main receiving groove 20 close to the support base 1. The secondary receiving groove 200 is used to accommodate a single steel pipe that falls along the groove wall of the main receiving groove 20 under the action of gravity. Third through holes 213 and fourth through holes 214 are respectively provided at one end of the first side plate 21 close to the discharging device 4 and away from the discharging device 4. Both the third through holes 213 and the fourth through holes 214 communicate with the secondary receiving groove 200 and are coaxially arranged with the first through hole 321. One end of the discharging device 4 extends through the third through hole 213 to drive the movement of the steel pipe in the secondary receiving groove 200. The fourth through hole 214 is used for the steel pipe in the secondary receiving groove 200 to extend out, extend into the first through hole 321 and be located between the two arc-shaped clamping plates 334.

[0028] In the initial state of this embodiment, a plurality of steel pipes are filled in the main receiving groove 20 one by one. The secondary receiving groove 200 on the first side plate 21 extends along the length direction of the first side plate 21 and is arranged close to the bottom end of the receiving groove 210. Since the secondary receiving groove 200 communicates with one end of the main receiving groove 20 close to the support base 1, the steel pipe arranged at the bottommost will enter the secondary receiving groove 200 under the action of gravity, and the volume of the secondary receiving groove 200 only accommodates one steel pipe. After the first steel pipe enters the secondary receiving groove 200, the other steel pipes still stay in the main receiving groove 20, and the second steel pipe close to the secondary receiving groove 20 abuts against the first steel pipe. When it is necessary to convey a single steel pipe into the guide rail 32, through the discharging device 4, one end of the discharging and storing device 4 passes through the third through hole 213 and drives the movement of the steel pipe. The end of the steel pipe away from the discharging device 4 sequentially passes through the third through hole 214 and the first through hole 321 and then enters the guide rail 32 and is located between the two arc-shaped clamping plates 334. In the present invention, the structure of the storage box 2 is simple, convenient for feeding, and easy for industrialization.

[0029] As an improved specific embodiment, the discharging device includes a telescopic motor 41 and a push rod 42. The telescopic motor 41 is arranged on the support seat 1, and the push rod 42 is located on the side of the telescopic motor 41 close to the secondary receiving tank 200 and is connected to its output end. When the telescopic motor 41 is started, the push rod 42 moves toward the storage box 2 until it extends into the third through hole 213 and drives the steel pipe in the secondary receiving tank 200 to move. After the end of the steel pipe away from the discharging device 4 passes through the fourth through hole 214 and the first through hole 321 in turn, the steel pipe is transported by the conveying device 3 and detached from the secondary receiving tank 200. The telescopic motor 41 controls the push rod 42 to move away from the storage box 212 until the push rod 42 detaches from the secondary receiving tank 200, and the single steel pipe in the main receiving tank 20 close to the secondary receiving tank 200 enters the secondary receiving tank 200.

[0030] When the push rod 42 is turned on, the push rod 42 is rotated to move forward and backward, and the push rod 42 is rotated to move backward, so that the push rod 42 can move forward and backward, and the push rod 42 can move backward and backward.

[0031] As an improved specific embodiment, the first side plate 21 includes a first groove wall 211 and a second groove wall 212 located on the upper and lower sides of the auxiliary accommodating groove 200, and the first groove wall 211 and the second groove wall 212 are both provided with balls 215 for assisting the movement of the steel pipe.

[0032] Through the above technical solution, the ball 215 converts the static friction between the steel pipe or push rod 42 and the first groove wall 211 and the first groove wall 212 into dynamic friction, reducing the friction force on the steel pipe or push rod 42 during movement and improving efficiency.

[0033] As an improved specific implementation, rubber sheets are provided on the inner walls of the two arc-shaped clamping plates 334 .

[0034] Through the above technical solution, the rubber sheet has elasticity, so that the two arc-shaped clamping plates 334 are not likely to damage the steel pipe during the process of clamping the steel pipe; and the rubber sheet will undergo elastic deformation and clamp more tightly.

[0035] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A thin-walled steel pipe feeding device, characterized in that: It includes a support base (1), a discharging device (4), a storage bin (2), and a conveying device (3) that are sequentially arranged on the support base (1) along the length direction of the support base (1). The storage bin (2) is used to store a number of steel pipes, and the discharging device (4) is used to transport the steel pipes in the storage bin (2) one by one into the conveying device (3). The conveying device (3) includes a mounting plate (31), a guide rail (32), a clamping assembly (33), and a conveying mechanism (34). The mounting plate (31) and the guide rail (32) are respectively arranged on the support base (1) along the width direction of the support base (1). A sliding groove (320) is provided on the side of the guide rail (32) facing away from the support base (1), and the extending direction of the sliding groove (320) is parallel to the length direction of the support base (1). A chute (310) extending along the length direction of the mounting plate (31) is provided on the side of the mounting plate (31) close to the guide rail (32). The clamping assembly (33) is slidably connected to the chute (310), and one end of it extends into the sliding groove (320). A first through hole (321) and a second through hole (322) are respectively provided at one end of the guide rail (32) close to the storage bin (2) and at one end of the guide rail (32) far from the storage bin (2). When a single steel pipe in the storage bin (2) enters the sliding groove (320) through the first through hole (321), the clamping assembly (33) clamps the steel pipe, and the conveying mechanism (34) drives the clamping assembly (33) to move along the chute (310) away from the storage bin (2), driving the steel pipe to move along the sliding groove (320) until it extends out of the second through hole (322). The conveying mechanism (34) is a telescopic cylinder; The clamping assembly (33) includes a first connecting rod (331), a first collar (332), a slider (333), and two arc-shaped clamping plates (334). The first connecting rod (331) is located above the sliding groove (320). One end of the slider (333) is connected to the end of the first connecting rod (331) away from the support base (1), and the other end extends towards the sliding groove (310). The slider (333) is slidably connected to the sliding groove (310). The arc-shaped clamping plate (334) includes a hinge rod (335) for hinging to the first connecting rod (331) near one end of the sliding cavity. The arc-shaped clamping plate (334) is hinged to the first connecting rod (331) through the hinge rod (335). The two arc-shaped clamping plates (334) are located in the sliding cavity. One arc-shaped clamping plate (334) is inclined relative to the first connecting rod (331) towards the mounting plate (31), and the other arc-shaped clamping plate (334) is inclined relative to the first connecting rod (331) away from the mounting plate (31). A clamping cavity (330) for clamping the steel pipe is formed between the two arc-shaped clamping plates (334). The first collar (332) is slidably connected to the first connecting rod (331). The conveying mechanism (34) drives the first collar (332) to move along the first connecting rod (331) towards the support base (1). When the inner wall of the first collar (332) abuts against the outer walls of the two hinge rods (335), the two arc-shaped clamping plates (334) close to clamp the steel pipe extending from the first collar (332). When the first collar (332) moves away from the support base (1) until the inner wall of the first collar (332) disengages from the two hinge rods (335), the two arc-shaped clamping plates (334) open to release the clamping of the steel pipe; The conveying mechanism (34) is located between the first connecting rod (331) and the mounting plate (31) and is arranged on the mounting plate (31). The conveying mechanism (34) includes a rotating motor (341), a second collar (342), a second connecting rod (343), a spring (344), and a hinge plate (345). The second collar (342) is vertically rotatably arranged on the mounting plate (31). The second collar (342) slidably sleeved on the second connecting rod (343). One end of the second connecting rod (343) is fixedly provided with the hinge plate (345). The hinge plate (345) is rotatably connected to the first collar (332) through a hinge shaft. The rotating motor (341) is fixed at the middle position of the mounting plate (31), and its output shaft is connected to the second collar (342) to drive the second collar (342) to rotate. The spring (344) is sleeved on the second connecting rod (343) and abuts between the second collar (342) and the hinge plate (345). The spring (344) is used to have a deformation pressure on the hinge plate (345) to move away from the second collar (342).

2. The thin-walled steel pipe feeding device according to claim 1, characterized in that: On one side of the storage bin (2) facing away from the support base (1), a main receiving groove (20) is provided. The main receiving groove (20) extends in a zigzag shape along the height direction of the storage bin (2). The main receiving groove (20) is used to accommodate a number of steel pipes with the axial direction consistent with the length direction of the support base (1). The storage bin (2) includes a first side plate (21) on the side away from the mounting plate (31). A secondary receiving groove (200) is provided on the first side plate (21). The secondary receiving groove (200) communicates with one end of the main receiving groove (20) close to the support base (1). The secondary receiving groove (200) is used to accommodate a single steel pipe that falls along the groove wall of the main receiving groove (20) under the action of gravity. At the two ends of the first side plate (21) close to and away from the discharging device (4), a third through hole (213) and a fourth through hole (214) are respectively provided. Both the third through hole (213) and the fourth through hole (214) communicate with the secondary receiving groove (200) and are coaxially arranged with the first through hole (321). The third through hole (213) is for one end of the discharging device (4) to extend into to drive the steel pipe in the secondary receiving groove (200) to move. The fourth through hole (214) is for the steel pipe in the secondary receiving groove (200) to extend out, extend into the first through hole (321) and be located between the two arc-shaped clamping plates (334).

3. The thin-walled steel pipe feeding device according to claim 2, wherein: The discharging device includes a telescopic motor (41) and a push rod (42). The telescopic motor (41) is arranged on the support base (1). The push rod (42) is located on the side of the telescopic motor (41) close to the secondary receiving groove (200) and is connected to its output end. When the telescopic motor (41) is started, the push rod (42) moves towards the storage bin (2) until it extends into the third through hole (213) and drives the steel pipe in the secondary receiving groove (200) to move. One end of the steel pipe away from the discharging device (4) sequentially passes through the fourth through hole (214) and the first through hole (321), and then the steel pipe is transported by the conveying device (3) and separated from the secondary receiving groove (200). When the telescopic motor (41) controls the push rod (42) to move away from the storage bin (2) until the push rod (42) is separated from the secondary receiving groove (200), a single steel pipe in the main receiving groove (20) close to the secondary receiving groove (200) enters the secondary receiving groove (200).

4. The thin-walled steel pipe feeding device according to claim 3, characterized in that: The first side plate (21) includes a first groove wall (211) and a second groove wall (212) located on the upper and lower sides of the secondary receiving groove (200). Ball bearings (215) for assisting the movement of the steel pipe are provided on both the first groove wall (211) and the second groove wall (212).

5. The thin-walled steel pipe feeding device according to claim 3, wherein: Rubber sheets are provided on the inner walls of the two arc-shaped clamping plates (334).

Images