Automatic feeding device of thin-wall copper pipe drawing machine

Abstract

The invention relates to the technical field of copper pipe drawing, and discloses an automatic feeding device of a thin-wall copper pipe drawing machine, which comprises a conveying belt, a partition plate is fixedly connected to the surface of the conveying belt, and two rollers are arranged in the conveying belt. The rollers of the conveying belt are driven to rotate through the belt wheels and the belt, and the copper pipes are conveyed to the inclined placing frame in order through the partition plates on the surface of the conveying belt; a second motor in the blocking mechanism drives a worm and a worm gear to drive an oval block to rotate, and an adjusting plate, a tension spring and a rubber spacer block achieve batch flow limiting of the copper pipe; when the copper pipe slides down to the cleaning mechanism, the water tank sprays water through a nozzle, and the surface of the copper pipe is brushed through rotation of two cleaning rollers; then an electric push rod adjusts the angle of a swing rod to enable a clamping box to position the copper pipe, and a positive and negative rotation screw drives a clamping plate to clamp the copper pipe; and finally, the hydraulic rod pushes the push plate to precisely push the copper pipe into the drawing machine along the guide of the rolling wheels, the stabilizing rod ensures that the push plate moves linearly, and full-automatic feeding, cleaning and positioning are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of copper tube drawing, and particularly to an automatic feeding device for a thin-wall copper tube drawing machine. Background Art

[0002] Copper tube drawing is a plastic processing technology in which a copper tube blank is pulled out from a die with a specific shape and size through an external force, so that its cross-sectional area is reduced and its length is increased, thereby obtaining a copper tube with the required specifications. This process is based on the principle of plastic deformation of metals. During drawing, one end of the copper tube blank is passed through the die, clamped by the chuck of the drawing machine and a pulling force is applied. Under the action of the pulling force, the copper tube undergoes plastic deformation under the constraint of the die, the pipe diameter gradually decreases, and the wall thickness and length change accordingly according to the die design and process parameters. The drawing die is a key component, and its shape, size and precision directly affect the final quality of the copper tube. Common die materials include cemented carbide, diamond, etc. to ensure wear resistance and service life. According to production requirements, copper tube drawing can be divided into single-pass drawing and multi-pass drawing. Single-pass drawing is suitable for situations with small deformation; multi-pass drawing gradually reduces the die aperture step by step to gradually achieve precise control of the copper tube size, and is suitable for producing copper tubes with high precision and complex specifications. Copper tube drawing technology is widely used in fields such as refrigeration, HVAC, power, and electronics. The produced copper tubes have the characteristics of high dimensional accuracy, good surface quality, and excellent mechanical properties.

[0003] Copper tube drawing requires a drawing machine. When the existing drawing machine is in use, the copper tube feeding method usually adopts manual feeding and mechanical automatic feeding. Manual feeding is time-consuming and laborious, and there are certain safety hazards, which is not conducive to the user. Mechanical feeding does not have the effect of cleaning the copper tube. There are a large amount of dust and particles on the surface of the copper tube, which is easy to slip during drawing and is easy to damage the copper tube, resulting in a reduction in the yield rate of copper tube drawing. Therefore, an automatic feeding device for a thin-wall copper tube drawing machine is proposed to solve the above problems. Summary of the Invention

[0004] In order to make up for the above deficiencies, the present invention provides an automatic feeding device for a thin-wall copper tube drawing machine, aiming to improve the problems in the prior art that when the drawing machine is in use, the copper tube feeding method usually adopts manual feeding and mechanical automatic feeding. Manual feeding is time-consuming and laborious, and there are certain safety hazards, which is not conducive to the user. Mechanical feeding does not have the effect of cleaning the copper tube. There are a large amount of dust and particles on the surface of the copper tube, which is easy to slip during drawing and is easy to damage the copper tube, resulting in a reduction in the yield rate of copper tube drawing.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: An automatic feeding device for a thin-walled copper tube drawing machine, comprising a conveyor belt. A partition is fixedly connected to the surface of the conveyor belt. Two rollers are arranged inside the conveyor belt. Rotating rods are fixedly connected to the interiors of the two rollers. A positioning frame is movably connected to the outer sides of the two rotating rods. Support columns are arranged at the bottom of the conveyor belt. A first motor is fixedly installed at the top of the support column. A belt pulley is fixedly connected to the output end of the first motor. A belt is installed on the surface of the belt pulley. The top of the belt is fixedly connected to one of the rotating rods through the belt pulley. A support frame is arranged inside the conveyor belt. An inclined placement frame is arranged on the right side of the conveyor belt. A blocking mechanism is arranged at the bottom of the inclined placement frame. The blocking mechanism includes an adjusting plate. The adjusting plate is movably installed at the bottom of the inclined placement frame through a pin. Cross plates are fixedly connected to both sides of the adjusting plate. Rubber blocking blocks are fixedly connected to the tops of the cross plates. A cleaning mechanism is arranged on the right side of the inclined placement frame. The cleaning mechanism includes a U-shaped frame. The U-shaped frame is fixedly installed on the ground through a square rod. A water tank is fixedly installed at the top of the U-shaped frame.

[0006] Through the above technical solutions, the partition fixedly connected to the surface of the conveyor belt can effectively separate and position the copper tubes, preventing the copper tubes from colliding with each other, rolling or stacking during transportation, ensuring the orderliness of transportation, and laying a foundation for subsequent accurate feeding. The combination of the two internal rollers, their rotating rods and the positioning frame not only ensures the smooth rotation of the conveyor belt but also provides a stable support structure for the conveyor belt, making the transportation process stable and reliable, reducing the position deviation of the copper tubes caused by vibration or deviation. The support columns provide a firm support for the overall device. The power transmission system of the motor, belt pulley and belt has a simple structure and efficient transmission, and can stably transmit the power of the motor to the rotating rod to achieve the continuous and stable operation of the conveyor belt, ensuring the continuity of copper tube transportation. The inclined placement frame facilitates the automatic sliding of the copper tubes to the subsequent mechanism under the action of gravity. The adjusting plate and rubber blocking blocks of the blocking mechanism at the bottom can flexibly control the falling rhythm of the copper tubes, preventing the copper tubes from falling too fast or piling up, and realizing the intermittent and orderly release of the copper tubes. In the cleaning mechanism, the U-shaped frame provides a stable installation platform for the cleaning components, the water tank provides a cleaning water source, and the two cleaning rollers can comprehensively and carefully clean the surface of the passing copper tubes, effectively removing oil stains, impurities, etc. on the surface of the copper tubes, ensuring the surface cleanliness of the copper tubes and improving the quality of subsequent drawing processing. The two rows of rollers at the top of the vertical plate on the right side of the feeding frame reduce the resistance of the copper tubes during feeding through rolling friction, enabling the copper tubes to move more smoothly to the designated position and improving the feeding efficiency. The boosting mechanism on the top of the square box, the combination of the hydraulic rod and the push plate, can provide a stable thrust after the copper tubes reach the designated position, accurately and quickly push the copper tubes into the clamping area of the drawing machine, ensuring the accuracy and efficiency of the feeding action.

[0007] As a further description of the above technical solution: A square plate is provided at the bottom of the adjusting plate. The square plate is fixedly installed on the ground through a square rod. A second motor is fixedly installed on the top of the square plate. The output end of the second motor is fixedly connected to a worm. A worm gear is meshed on the surface of the worm. A driving rod is fixedly connected inside the worm gear. Both ends of the driving rod and one end of the worm away from the second motor are movably connected to a reinforcing plate through a bearing seat. The bottom of the reinforcing plate is fixedly connected to the top of the square plate.

[0008] Through the above technical solution, a square plate is provided at the bottom of the adjusting plate and fixed to the ground through a square rod, providing a stable foundation for the entire driving and adjusting mechanism. This design avoids the displacement of the device during operation due to vibration or external forces, ensuring the stability and reliability of the feeding process. The worm connected to the output end of the second motor is meshed with the worm gear. This transmission method has self-locking properties, which can prevent the driving rod from reversing, ensuring the accuracy and stability of the position adjustment of the adjusting plate. At the same time, the worm and worm gear transmission is stable, which can reduce the vibration and impact during the transmission process, enabling the adjusting plate to be accurately adjusted to the required position, ensuring the accuracy and consistency of the copper tube feeding. Both ends of the driving rod and one end of the worm away from the second motor are movably connected to the reinforcing plate through a bearing seat. The use of the bearing seat reduces the friction between the transmission components, improves the transmission efficiency, reduces the energy loss, and ensures the flexible rotation of the transmission components, further enhancing the accuracy of the transmission.

[0009] As a further description of the above technical solution: An elliptical block is fixedly connected to the surface of the driving rod. Arc-shaped grooves are opened at the bottom of the adjusting plate and the top of the square plate. The surface of the inner wall of the arc-shaped groove is movably connected with a plurality of balls. The number of the balls is several and they are evenly distributed in an arc. The balls are used in cooperation with the elliptical block.

[0010] Through the above technical solution, the elliptical block is fixed on the surface of the driving rod and generates a periodic eccentric motion as the driving rod rotates, which can accurately control the swing amplitude and rhythm of the adjusting plate, improving the compatibility of the device. The arc-shaped grooves opened at the bottom of the adjusting plate and the square plate, in cooperation with the evenly distributed balls, construct a low-friction rolling support system. The balls convert the traditional sliding friction into rolling friction, greatly reducing the friction resistance, reducing the motion energy consumption, and at the same time accelerating the response speed, ensuring the agility and efficiency of the feeding action.

[0011] As a further description of the above technical solution: Two tension springs are movably connected to the top of the square plate through a pin. The tops of the two tension springs are movably connected to both sides of the adjusting plate through a pin. Four rubber isolation blocks are fixedly connected to the top of the two cross plates.

[0012] Through the above technical solution, two tension springs that are movably connected between the top of the square plate and both sides of the adjusting plate by pivot pins form an elastic reset and buffer system. The tension springs can provide a stable pulling force during the movement of the adjusting plate, enabling it to swing smoothly under the drive of the elliptical block, avoiding excessive displacement due to inertia or external force impact, and ensuring the feeding rhythm and accuracy. When the driving rod stops driving, the tension springs can quickly pull the adjusting plate back to its initial position, ensuring the accurate start of the next feeding action, greatly improving the automation and continuity level of the device. The four rubber spacer blocks fixed to the top of the cross plate are the key components for controlling the lowering of the copper tube. The elasticity and softness of the rubber material effectively buffer the impact force of the falling copper tube, and use its own elastic deformation characteristics to flexibly block and accurately limit the falling copper tube, ensuring that the copper tubes are lowered singly, orderly, and at intervals, avoiding copper tube accumulation or jamming, guaranteeing the smoothness and reliability of the feeding process, and further improving the overall performance of the device and the quality of copper tube drawing processing.

[0013] As a further description of the above technical solution: Two cleaning rollers are movably connected to the inner side of the U-shaped frame through bearing seats. A feeding frame is arranged on the right side of the U-shaped frame. A vertical plate is arranged on the right side of the feeding frame. Two rows of rollers are fixedly installed at the top of the vertical plate. A square box is fixedly connected to the right side of the vertical plate. A boosting mechanism is arranged on the top of the square box. The boosting mechanism includes a hydraulic rod. The output end of the hydraulic rod is fixedly connected to a push plate. A spray head fixing plate is fixedly installed on the inner side of the U-shaped frame. The inside of the water tank is communicated with a water pipe through multiple water pumps. The top of the water pipe is communicated with a spray head. The number of spray heads is several and they are evenly distributed in a straight line. A third motor is fixedly installed at the bottom of the inner wall of the U-shaped frame. The output end of the third motor is fixedly connected to a drive pipe. Both ends of the drive pipe are movably connected to the surface of the inner wall of the U-shaped frame through bearing seats. Two active synchronous wheels are fixedly connected to both sides of the surface of the drive pipe. A synchronous belt is meshed on the surface of both active synchronous wheels. A driven synchronous wheel is meshed on the top of the synchronous belt.

[0014] Through the above technical solution, the rotation of the third motor drives the drive pipe to rotate, thereby driving the active synchronous wheel, the synchronous belt, and the driven synchronous wheel to rotate, and spraying through the spray heads on the top of the water tank to clean the surface of the copper tube, facilitating the efficient use by the user.

[0015] As a further description of the above technical solution: A first cleaning rod is fixedly connected to the inside of the driven synchronous wheel. Both ends of the first cleaning rod are movably connected to both sides of the inner wall of the U-shaped frame through bearing seats. Two first gears are fixedly connected to both sides of the surface of the first cleaning rod. A second gear is meshed on the surface of both first gears. The outer sides of both second gears are movably connected to the surface of the inner wall of the U-shaped frame through bearing seats. A third gear is meshed on the right side of both second gears. Two second cleaning rods are fixedly connected to the inside of both third gears.

[0016] Through the above technical solution, the driven synchronous pulley drives the first cleaning rod, and the two ends are stably supported through the bearing seats, which not only ensures smooth rotation of the cleaning rod but also avoids eccentric swing, ensuring accurate and stable cleaning operations. Through the coordinated use of the first gear, the second gear, and the third gear, the first and second cleaning rods rotate in cooperation to form a multi-roller surface synchronous cleaning mode, effectively covering the 360° area of the copper tube surface, improving the cleaning efficiency and quality. At the same time, the gear drive has high transmission ratio accuracy, ensuring that the rotational speeds of the two cleaning rods are the same, avoiding distortion or scratches on the copper tube due to uneven force, and providing a reliable guarantee for the high-quality drawing process of thin-walled copper tubes.

[0017] As a further description of the above technical solution: The surfaces of the first cleaning rod and the second cleaning rod are respectively fixedly connected to the interiors of two cleaning rollers. A swing frame is arranged between the U-shaped frame and the loading frame. Both sides of the top of the swing frame are movably connected to swing rods through pins. Electric push rods are movably connected to the surfaces of the two swing rods through pins. The bottoms of the two electric push rods are movably connected to the top of the swing frame through pins. The inner sides of the two swing rods are movably connected to a round rod through a bearing seat.

[0018] Through the above technical solution, the first cleaning rod, the second cleaning rod, and the cleaning rollers are rigidly fixed together to form a dual-power cleaning module. The second cleaning rod directly drives the cleaning rollers to rotate synchronously through the stable torque transmitted by the gear set, ensuring a constant contact pressure between the brush and the copper tube surface and making the two cleaning rollers rotate in the same direction. In cooperation with the nozzle for spraying, the cleaning efficiency of the copper tube surface is improved. Through the setting of the electric push rod and the swing rod, it is convenient to move the copper tube efficiently, improving the usage efficiency.

[0019] As a further description of the above technical solution: The bottom of the round rod is movably connected to a clamping box through a pin. A motor is fixedly installed at one end of the clamping box. The output end of the motor is fixedly connected to a forward and reverse screw rod. The end of the forward and reverse screw rod away from the motor is movably connected to the inner wall surface of the clamping box through a bearing seat. Two screw sleeves are threadedly connected to the surface of the forward and reverse screw rod. A sliding rod is slidably connected inside the screw sleeve. The two ends of the sliding rod are fixedly connected to the inner wall surface of the clamping box. The bottom of the screw sleeve is fixedly connected to a clamping plate. The inner sides of the two clamping plates are fixedly connected to a conical block.

[0020] Through the above technical solution, the clamping mechanism is designed with multiple components working together, significantly improving the stability, precision, and compatibility of copper tube clamping. The motor drives the forward and reverse rotation of the screw rod, which cooperates with the screw sleeve and the sliding rod to form a high-precision linear drive module. The rigid guiding and anti-torsion characteristics of the sliding rod can eliminate the rotational offset of the screw sleeve, controlling the displacement error of the clamping plate within ±0.08 mm, ensuring synchronous centering clamping of the double clamping plates, and avoiding oval deformation of the thin-walled copper tube (wall thickness ≤ 0.3 mm) caused by unbalanced unilateral force. Finally, it is tightened by the tapered block, improving the usage efficiency.

[0021] As a further description of the above technical solution: The hydraulic rod is fixedly installed on the top of the square box. A stabilizing rod is slidably connected inside the push plate, and both ends of the stabilizing rod are fixedly connected to the top of the square box through reinforcing plates.

[0022] Through the above technical solution, the push plate is efficiently limited by the stabilizing rod, improving the efficiency of the push plate's movement and facilitating the user's operation.

[0023] The present invention has the following beneficial effects: In the present invention, the motor drives the rotation of the roller of the conveyor belt through a belt pulley and a belt. The partition plates on the surface of the conveyor belt orderly transport the copper tubes to the inclined placement rack. In the blocking mechanism, the second motor drives the worm and worm wheel to drive the elliptical block to rotate. Through the cooperation of the ball and the arc groove, the adjusting plate swings periodically, and together with the reset of the tension spring and the rubber partition block, it realizes the batch current limiting of the copper tubes. When the copper tubes slide down to the cleaning mechanism, the water tank sprays water through the nozzle, and the third motor drives the two cleaning rollers to rotate through the synchronous belt and the gear set to brush the surface of the copper tubes. Subsequently, the electric push rod adjusts the angle of the swing rod to position the copper tubes in the clamping box, and the motor drives the forward and reverse rotation of the screw rod to drive the clamping plate to clamp the copper tubes through the tapered block. They are sent to the top of the loading rack, and finally the hydraulic rod pushes the push plate to accurately push the copper tubes into the drawing machine along the roller guide. The stabilizing rod ensures the linear movement of the push plate, realizing full-automatic feeding, cleaning, and positioning.

[0024] In the present invention, the first cleaning rod, the second cleaning rod, and the cleaning roller are rigidly connected to form a dual-power cleaning module. The second cleaning rod directly drives the synchronous rotation of the cleaning roller through the stable torque transmitted by the gear set, ensuring a constant contact pressure between the brush and the surface of the copper tube, and making the two cleaning rollers rotate in the same direction. Together with the spraying of the nozzle, it improves the cleaning efficiency of the surface of the copper tube. Through the setting of the electric push rod and the swing rod, it is convenient to efficiently move the copper tubes, improving the usage efficiency. Brief Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the conveyor belt of the present invention; Figure 2 For the present invention Figure 1 Partial enlarged schematic diagram at A in Figure 3 For the present inventionFigure 1 Schematic diagram of partial enlargement at position B in Figure 4 Schematic diagram of the adjusting plate of the present invention; Figure 5 of the present invention Figure 4 Schematic diagram of partial enlargement at position D in Figure 6 Schematic diagram of the swing frame of the present invention; Figure 7 of the present invention Figure 6 Schematic diagram of partial enlargement at position C in Figure 8 Schematic diagram of the nozzle fixing plate of the present invention; Figure 9 Schematic diagram of the forward and reverse screw of the present invention.

[0026] Legend: 1, conveyor belt; 2, partition board; 3, roller; 4, rotating rod; 5, positioning frame; 6, support column; 7, first motor; 8, belt pulley; 9, belt; 10, support frame; 11, inclined placement frame; 12, blocking mechanism; 121, adjusting plate; 122, cross plate; 123, rubber isolation block; 124, square plate; 125, second motor; 126, worm; 127, worm wheel; 128, driving rod; 129, reinforcement plate; 1210, elliptical block; 1211, arc groove; 1212, ball; 1213, tension spring; 13, cleaning mechanism; 131, U-shaped frame; 132, water tank; 133, cleaning roller; 135, water pipe; 136, nozzle; 137, third motor; 138, driving pipe; 139, driving synchronous pulley; 1310, synchronous belt; 1311, driven synchronous pulley; 1312, first cleaning rod; 1313, first gear; 1314, second gear; 1315, third gear; 1316, second cleaning rod; 1317, swing frame; 1318, swing rod; 1319, electric push rod; 1320, round rod; 1321, clamping box; 1322, motor; 1323, forward and reverse screw; 1324, nut sleeve; 1325, sliding rod; 1326, clamping plate; 1327, tapered block; 1328, nozzle fixing plate; 14, loading rack; 15, vertical plate; 16, roller; 17, square box; 18, boosting mechanism; 181, hydraulic rod; 182, push plate; 183, stabilizing rod. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Reference Figures 1-9, an embodiment provided by the present invention: an automatic feeding device for a thin-walled copper tube drawing machine, comprising: a conveyor belt 1, a partition 2 is fixedly connected to the surface of the conveyor belt 1, two rollers 3 are arranged inside the conveyor belt 1, a rotating rod 4 is fixedly connected to the inside of each of the two rollers 3, a positioning frame 5 is movably connected to the outside of the two rotating rods 4, a support column 6 is arranged at the bottom of the conveyor belt 1, a first motor 7 is fixedly installed at the top of the support column 6, an output end of the first motor 7 is fixedly connected to a pulley 8, a belt 9 is installed on the surface of the pulley 8, the top of the belt 9 is fixedly connected to one of the rotating rods 4 through the pulley 8, a support frame 10 is arranged inside the conveyor belt 1, an inclined placement frame 11 is arranged on the right side of the conveyor belt 1, a blocking mechanism 12 is arranged at the bottom of the inclined placement frame 11, the blocking mechanism 12 includes an adjusting plate 121, the adjusting plate 121 is movably installed at the bottom of the inclined placement frame 11 through a pin, cross plates 122 are fixedly connected to both sides of the adjusting plate 121, a rubber blocking block 123 is fixedly connected to the top of the cross plate 122, a cleaning mechanism 13 is arranged on the right side of the inclined placement frame 11, the cleaning mechanism 13 includes a U-shaped frame 131, the U-shaped frame 131 is fixedly installed on the ground through a square rod, a water tank 132 is fixedly installed at the top of the U-shaped frame 131, two cleaning rollers 133 are movably connected to the inside of the U-shaped frame 131 through bearing seats, a feeding frame 14 is arranged on the right side of the U-shaped frame 131, a vertical plate 15 is arranged on the right side of the feeding frame 14, two rows of rollers 16 are fixedly installed at the top of the vertical plate 15, a square box 17 is fixedly connected to the right side of the vertical plate 15, a boosting mechanism 18 is arranged at the top of the square box 17, the boosting mechanism 18 includes a hydraulic rod 181, an output end of the hydraulic rod 181 is fixedly connected to a push plate 182. The partition 2 fixedly connected to the surface of the conveyor belt 1 can effectively separate and limit the copper tubes, preventing the copper tubes from colliding with each other, rolling or stacking during transportation, ensuring the orderliness of transportation, and laying a foundation for subsequent accurate feeding. The combination of the two internal rollers 3, their rotating rods 4 and the positioning frame 5 not only ensures the smooth rotation of the conveyor belt 1, but also provides a stable support structure for the conveyor belt 1, making the transportation process stable and reliable, reducing the position deviation of the copper tubes caused by vibration or deviation. The support column 6 provides a solid support for the overall device. The power transmission system of the motor, pulley 8 and belt 9 has a simple structure and efficient transmission, and can stably transmit the power of the motor to the rotating rod 4, realizing the continuous and stable operation of the conveyor belt 1 and ensuring the continuity of the copper tube transportation. The inclined placement frame 11 is conducive to the automatic sliding of the copper tubes under the action of gravity to the subsequent mechanism. The adjusting plate 121 and the rubber blocking block 123 of the blocking mechanism 12 at the bottom can flexibly control the falling rhythm of the copper tubes, avoiding the too fast falling or stacking of the copper tubes, and realizing the intermittent and orderly lowering of the copper tubes. In the cleaning mechanism 13, the U-shaped frame 131 provides a stable installation platform for the cleaning components, the water tank 132 provides a cleaning water source, and the two cleaning rollers 133 can comprehensively and carefully clean the surface of the passing copper tubes, effectively removing the oil stains, impurities, etc. on the surface of the copper tubes, ensuring the surface cleanliness of the copper tubes and improving the quality of subsequent drawing processing.On the upper feeding rack 14, there are two rows of rollers 16 at the top of the right vertical plate 15. By rolling friction, the resistance of the copper tube during the feeding process is reduced, enabling the copper tube to move more smoothly to the specified position, improving the feeding efficiency. On the top of the square box 17, there is a boosting mechanism 18, which is a combination of a hydraulic rod 181 and a push plate 182. After the copper tube reaches the specified position, it can provide a stable thrust to accurately and quickly push the copper tube into the clamping area of the drawing machine, ensuring the accuracy and efficiency of the feeding action.

[0029] Refer to Figures 1-9 At the bottom of the adjusting plate 121, there is a square plate 124. The square plate 124 is fixedly installed on the ground through a square rod. On the top of the square plate 124, a second motor 125 is fixedly installed. The output end of the second motor 125 is fixedly connected with a worm 126. A worm gear 127 is meshed on the surface of the worm 126. Inside the worm gear 127, a driving rod 128 is fixedly connected. At both ends of the driving rod 128 and at one end of the worm 126 away from the second motor 125, reinforcing plates 129 are movably connected through bearing seats. The bottom of the reinforcing plate 129 is fixedly connected with the top of the square plate 124. The square plate 124 is arranged at the bottom of the adjusting plate 121 and fixed on the ground through a square rod, providing a stable foundation for the entire driving and adjusting mechanism. This design avoids the displacement of the device during operation due to vibration or external forces, ensuring the stability and reliability of the feeding process. The worm 126 connected to the output end of the second motor 125 is meshed with the worm gear 127. This transmission method has self-locking property, which can prevent the driving rod 128 from reversing, ensuring the accuracy and stability of the position adjustment of the adjusting plate 121. At the same time, the transmission of the worm gear 127 and the worm 126 is stable, which can reduce the vibration and impact during the transmission process, enabling the adjusting plate 121 to be accurately adjusted to the required position, ensuring the accuracy and consistency of the copper tube feeding. At both ends of the driving rod 128 and at one end of the worm 126 away from the second motor 125, reinforcing plates 129 are movably connected through bearing seats. The use of bearing seats reduces the friction between transmission components, improves the transmission efficiency, reduces the energy loss, and ensures the flexible rotation of transmission components, further improving the accuracy of the transmission. On the surface of the driving rod 128, an elliptical block 1210 is fixedly connected. Arc-shaped grooves 1211 are opened at the bottom of the adjusting plate 121 and at the top of the square plate 124. The inner surface of the arc-shaped groove 1211 is movably connected with a plurality of balls 1212. The number of balls 1212 is several and they are evenly distributed in an arc. The balls 1212 are used in cooperation with the elliptical block 1210.

[0030] Refer to Figures 1-9, two tension springs 1213 are movably connected to the top of the square plate 124 through a pin. The tops of the two tension springs 1213 are movably connected to both sides of the adjusting plate 121 through a pin. Four rubber spacer blocks 123 are fixedly connected to the tops of the two cross plates 122. A nozzle fixing plate 1328 is fixedly installed inside the U-shaped frame 131. Inside the water tank 132, a water pipe 135 is connected through a plurality of water pumps. The top of the water pipe 135 is connected to a nozzle 136. The number of nozzles 136 is several and they are evenly distributed in a straight line. A third motor 137 is fixedly installed at the bottom of the inner wall of the U-shaped frame 131. The output end of the third motor 137 is fixedly connected to a driving pipe 138. Both ends of the driving pipe 138 are movably connected to the surface of the inner wall of the U-shaped frame 131 through a bearing seat. Two driving synchronous pulleys 139 are fixedly connected to both sides of the surface of the driving pipe 138. A synchronous belt 1310 is engaged with the surfaces of the two driving synchronous pulleys 139. A driven synchronous pulley 1311 is engaged with the top of the synchronous belt 1310. A first cleaning rod 1312 is fixedly connected to the inside of the driven synchronous pulley 1311. Both ends of the first cleaning rod 1312 are movably connected to both sides of the inner wall of the U-shaped frame 131 through a bearing seat. Two first gears 1313 are fixedly connected to both sides of the surface of the first cleaning rod 1312. A second gear 1314 is engaged with the surfaces of the two first gears 1313. The outer sides of the two second gears 1314 are movably connected to the surface of the inner wall of the U-shaped frame 131 through a bearing seat. A third gear 1315 is engaged with the right sides of the two second gears 1314. A second cleaning rod 1316 is fixedly connected to the inside of the two third gears 1315. The surfaces of the first cleaning rod 1312 and the second cleaning rod 1316 are respectively fixedly connected to the inside of the two cleaning rollers 133. A swing frame 1317 is arranged between the U-shaped frame 131 and the loading frame 14. Swing rods 1318 are movably connected to both sides of the top of the swing frame 1317 through a pin. Electric push rods 1319 are movably connected to the surfaces of the two swing rods 1318 through a pin. The bottoms of the two electric push rods 1319 are movably connected to the top of the swing frame 1317 through a pin. A round rod 1320 is movably connected to the inside of the two swing rods 1318 through a bearing seat.

[0031] Refer to Figures 1-9, the bottom of the round rod 1320 is movably connected to a clamping box 1321 through a shaft pin. One end of the clamping box 1321 is fixedly installed with a motor 1322. The output end of the motor 1322 is fixedly connected to a forward and reverse screw rod 1323. The end of the forward and reverse screw rod 1323 away from the motor 1322 is movably connected to the inner wall surface of the clamping box 1321 through a bearing seat. Two screw sleeves 1324 are threadedly connected to the surface of the forward and reverse screw rod 1323. A sliding rod 1325 is slidably connected inside the screw sleeve 1324. Both ends of the sliding rod 1325 are fixedly connected to the inner wall surface of the clamping box 1321. The bottom of the screw sleeve 1324 is fixedly connected to a clamping plate 1326. The inner sides of the two clamping plates 1326 are fixedly connected to a conical block 1327. The hydraulic rod 181 is fixedly installed on the top of the square box 17. A stabilizing rod 183 is slidably connected inside the push plate 182. Both ends of the stabilizing rod 183 are fixedly connected to the top of the square box 17 through a reinforcing plate 129.

[0032] Working principle: The motor drives the roller 3 of the conveyor belt 1 to rotate through the belt pulley 8 and the belt 9. The partition plate 2 on the surface of the conveyor belt 1 orderly conveys the copper tubes to the inclined placement rack 11; in the blocking mechanism 12, the second motor 125 drives the worm 126 and the worm gear 127 to drive the elliptical block 1210 to rotate. Through the cooperation of the ball 1212 and the arc groove 1211, the adjusting plate 121 swings periodically, and cooperates with the reset of the tension spring 1213 and the rubber isolation block 123 to realize the batch current limiting of the copper tubes; when the copper tubes slide down to the cleaning mechanism 13, the water tank 132 sprays water through the nozzle 136. The third motor 137 drives the two cleaning rollers 133 to rotate through the synchronous belt 1310 and the gear set to brush the surface of the copper tubes; then the electric push rod 1319 adjusts the angle of the swing rod 1318 to position the clamping box 1321 for the copper tubes. The motor 1322 drives the forward and reverse screw rod 1323 to drive the clamping plate 1326 to clamp the copper tubes through the conical block 1327; it is sent to the top of the feeding rack 14. Finally, the hydraulic rod 181 pushes the push plate 182 to accurately push the copper tubes into the drawing machine along the guide of the roller 16. The stabilizing rod 183 ensures the linear movement of the push plate 182, realizing full-automatic feeding, cleaning and positioning.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic feeding device for a thin-walled copper tube drawing machine, comprising a conveyor belt (1), characterized in that: A partition plate (2) is fixedly connected to the surface of the conveyor belt (1). Two rollers (3) are arranged inside the conveyor belt (1). A rotating rod (4) is fixedly connected to the inside of each of the two rollers (3). A positioning frame (5) is movably connected to the outer sides of the two rotating rods (4). Support columns (6) are arranged at the bottom of the conveyor belt (1). A first motor (7) is fixedly installed at the top of the support column (6). A belt pulley (8) is fixedly connected to the output end of the first motor (7). A belt (9) is installed on the surface of the belt pulley (8). The top of the belt (9) is fixedly connected to one of the rotating rods (4) through the belt pulley (8). A support frame (10) is arranged inside the conveyor belt (1). An inclined placement frame (11) is arranged on the right side of the conveyor belt (1). A blocking mechanism (12) is arranged at the bottom of the inclined placement frame (11). The blocking mechanism (12) includes an adjusting plate (121). The adjusting plate (121) is movably installed at the bottom of the inclined placement frame (11) through a pin. Cross plates (122) are fixedly connected to both sides of the adjusting plate (121). Rubber partition blocks (123) are fixedly connected to the tops of the cross plates (122). A cleaning mechanism (13) is arranged on the right side of the inclined placement frame (11). The cleaning mechanism (13) includes a U-shaped frame (131). The U-shaped frame (131) is fixedly installed on the ground through a square rod. A water tank (132) is fixedly installed at the top of the U-shaped frame (131).

2. The automatic feeding device for a thin-walled copper tube drawing machine according to claim 1, characterized in that: A square plate (124) is arranged at the bottom of the adjusting plate (121). The square plate (124) is fixedly installed on the ground through a square rod. A second motor (125) is fixedly installed at the top of the square plate (124). A worm (126) is fixedly connected to the output end of the second motor (125). A worm gear (127) is meshed with the surface of the worm (126). A driving rod (128) is fixedly connected to the inside of the worm gear (127). Bearing seats are used for the activities at both ends of the driving rod (128) and one end of the worm (126) away from the second motor (125). Reinforcing plates (129) are fixedly connected to the bottoms of the reinforcing plates (129) and the top of the square plate (124).

3. The automatic feeding device for a thin-walled copper tube drawing machine according to claim 2, characterized in that: An elliptical block (1210) is fixedly connected to the surface of the driving rod (128). Arc-shaped grooves (1211) are formed at the bottoms of the adjusting plate (121) and the top of the square plate (124). A ball (1212) is movably connected to the surface of the inner wall of the arc-shaped groove (1211). The number of the balls (1212) is several and they are evenly distributed in an arc. The balls (1212) are used in cooperation with the elliptical block (1210).

4. The automatic feeding device for a thin-walled copper tube drawing machine according to claim 2, characterized in that: Two tension springs (1213) are movably connected to the top of the square plate (124) through pins. The tops of the two tension springs (1213) are movably connected to both sides of the adjusting plate (121) through pins. Four rubber partition blocks (123) are fixedly connected to the tops of the two cross plates (122).

5. The automatic feeding device for a thin-walled copper tube drawing machine according to claim 1, characterized in that: On the inner side of the U-shaped frame (131), two cleaning rollers (133) are movably connected through bearing seats. On the right side of the U-shaped frame (131), a feeding frame (14) is provided. On the right side of the feeding frame (14), a vertical plate (15) is provided. At the top of the vertical plate (15), two rows of rollers (16) are fixedly installed. On the right side of the vertical plate (15), a square box (17) is fixedly connected. On the top of the square box (17), a boosting mechanism (18) is provided. The boosting mechanism (18) includes a hydraulic rod (181). The output end of the hydraulic rod (181) is fixedly connected with a push plate (182). Inside the U-shaped frame (131), a nozzle fixing plate (1328) is fixedly installed. Inside the water tank (132), a water pipe (135) is connected through a plurality of water pumps. At the top of the water pipe (135), a nozzle (136) is connected. The number of nozzles (136) is several and they are evenly distributed in a straight line. At the bottom of the inner wall of the U-shaped frame (131), a third motor (137) is fixedly installed. The output end of the third motor (137) is fixedly connected with a drive pipe (138). Both ends of the drive pipe (138) are movably connected with the surface of the inner wall of the U-shaped frame (131) through bearing seats. On both sides of the surface of the drive pipe (138), a driving synchronous pulley (139) is fixedly connected. On the surface of both driving synchronous pulleys (139), a synchronous belt (1310) is engaged. On the top of the synchronous belt (1310), a driven synchronous pulley (1311) is engaged.

6. The automatic feeding device for a thin-walled copper tube drawing machine according to claim 5, characterized in that: Inside the driven synchronous pulley (1311), a first cleaning rod (1312) is fixedly connected. Both ends of the first cleaning rod (1312) are movably connected with both sides of the inner wall of the U-shaped frame (131) through bearing seats. On both sides of the surface of the first cleaning rod (1312), a first gear (1313) is fixedly connected. On the surface of both first gears (1313), a second gear (1314) is engaged. On the outside of both second gears (1314), they are movably connected with the surface of the inner wall of the U-shaped frame (131) through bearing seats. On the right side of both second gears (1314), a third gear (1315) is engaged. Inside both third gears (1315), a second cleaning rod (1316) is fixedly connected.

7. The automatic feeding device for a thin-walled copper tube drawing machine according to claim 6, characterized in that: The surfaces of the first cleaning rod (1312) and the second cleaning rod (1316) are respectively fixedly connected with the inside of the two cleaning rollers (133). Between the U-shaped frame (131) and the feeding frame (14), a swing frame (1317) is provided. On both sides of the top of the swing frame (1317), swing rods (1318) are movably connected through pin shafts. On the surfaces of both swing rods (1318), electric push rods (1319) are movably connected through pin shafts. At the bottom of both electric push rods (1319), they are movably connected with the top of the swing frame (1317) through pin shafts. Inside the inner sides of both swing rods (1318), a round rod (1320) is movably connected through a bearing seat.

8. The automatic feeding device for a thin-walled copper tube drawing machine according to claim 7, characterized in that: The bottom of the round rod (1320) is movably connected with a clamping box (1321) through a shaft pin. One end of the clamping box (1321) is fixedly installed with a motor (1322). The output end of the motor (1322) is fixedly connected with a forward and reverse screw rod (1323). The end of the forward and reverse screw rod (1323) far away from the motor (1322) is movably connected with the inner wall surface of the clamping box (1321) through a bearing seat. The surface of the forward and reverse screw rod (1323) is threadedly connected with two screw sleeves (1324). A sliding rod (1325) is slidably connected inside the screw sleeve (1324). Both ends of the sliding rod (1325) are fixedly connected with the inner wall surface of the clamping box (1321). The bottom of the screw sleeve (1324) is fixedly connected with a clamping plate (1326). The inner sides of the two clamping plates (1326) are fixedly connected with a conical block (1327).

9. The automatic feeding device for a thin-walled copper tube drawing machine according to claim 5, characterized in that: The hydraulic rod (181) is fixedly installed on the top of the square box (17). A stabilizing rod (183) is slidably connected inside the push plate (182). Both ends of the stabilizing rod (183) are fixedly connected with the top of the square box (17) through a reinforcing plate (129).

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