A U-bending machine blanking device and a U-bending machine

Abstract

This invention discloses a U-bending tube feeding device and a U-bending tube machine, including a support platform and a mounting plate. During use, when the support plate detaches from the feeding inclined surface, one side of the support plate loses support, causing it to rotate in the mounting groove and face the ground under the action of the pin. This causes the electric telescopic rod and the guide plate to tilt. As the drive plate continues to move, the end of the support plate near the bottom of the feeding groove will contact the guide rod, causing the stacked U-bending tubes to detach from the electric telescopic rod and the guide plate. At this time, the stacked U-bending tubes complete the flipping and reversal, and the U-bending tubes fall onto the top of the conveyor plate. The top of the conveyor plate is supplied with gas by the jet pump. The gas is heated by the heating resistance wire, and the injection molding material on the U-bending tube is further dried. At the same time, the injection molding material on the U-bending tube can replace the wear of the U-bending tube on the conveyor plate, thereby further reducing the wear on the bottom of the U-bending tube and ensuring the yield of U-bending tubes.

Description

Technical Field

[0001] This invention relates to the field of U-bend tube feeding technology, specifically to a U-bend tube feeding device and a U-bend tube machine. Background Technology

[0002] U-bends, also known as U-shaped bends, are a type of pipe fitting primarily used for bending non-ferrous or ferrous metal pipes. They are suitable for use in building materials, shipbuilding, chemical, metallurgical, boiler, and heavy machinery manufacturing industries. The products are mainly used in architectural curved steel structures, tunnel supports, vehicle roof beams, subway projects, aluminum doors and windows, ceilings, internal frameworks for cylindrical columns, balcony handrails, shower doors, production line tracks, fitness equipment, and many other industries. Materials include carbon steel, alloy steel, stainless steel, copper, and aluminum.

[0003] In the prior art, publication number "CN108856550A" discloses a U-bending machine unloading device and a U-bending machine. The unloading device includes a receiving platform with a first end and a second end. The first end has a pushing device for pushing the U-bending pipe, and the second end has a groove for holding the U-bending pipe. It also includes a gripping device, which comprises a support base, a robotic arm connected to the support base, and a robotic claw mounted on the robotic arm for gripping the U-bending pipe placed in the groove. A transfer device is also included for holding the U-bending pipe transferred by the gripping device. By employing the cooperation of the pushing device and the gripping device, the U-bending pipe is transferred, thereby reducing the labor intensity of workers.

[0004] However, existing technologies still have significant shortcomings, such as:

[0005] In the aforementioned devices and existing technologies, stainless steel U-bends are widely used in the decoration field due to their good gloss and high strength. However, the surface of stainless steel bends needs to maintain its gloss and avoid excessive scratches that would result in poor surface cleanliness. Therefore, during the material cutting process, it is necessary to ensure that adjacent bends are stacked neatly. Scattered bends will increase the contact area between them, leading to increased collisions and affecting the yield of finished bends. After stacking, the bends still need to be supported during transportation to reduce contact wear between them. Summary of the Invention

[0006] The purpose of this invention is to provide a U-bending machine feeding device and a U-bending machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a U-bending pipe machine feeding device, comprising a support platform and a mounting plate, wherein a sliding groove is provided on the top of one side of the support platform, a direct drive guide rail is installed inside the sliding groove, a drive plate is installed on the moving end of the direct drive guide rail, a feeding groove is provided on the other side of the support platform, a feeding inclined surface is provided on the inner wall of the feeding groove near the drive plate, a support frame is installed on the top of the support platform, a feeding inclined plate is installed on the support frame near the feeding groove, and a support plate is provided at one end of the drive plate;

[0008] A guiding unit is disposed inside the feeding trough and on the top of the support plate. It is used to guide and stack the U-bends falling from the feeding inclined plate so that multiple sets of U-bends are neatly stacked.

[0009] A fixing unit is disposed on one side of the guiding unit and is used to spray liquid injection molding material into the U-bend tubes during the stacking process of U-bend tubes, so that the stacked U-bend tubes are sealed and fixed.

[0010] Preferably, the guiding unit includes an electric telescopic rod, which is installed on the top of the support plate near the drive plate. A guide plate is installed on the top surface of the electric telescopic rod, and an opening is provided on the side of the guide plate away from the drive plate. A pressure plate and a drive arm are installed on the moving end of the electric telescopic rod near the opening area, and a transmission arm is installed at the bottom of the drive arm.

[0011] Preferably, the fixing unit includes a movable cylinder, which is installed on the top of the support plate away from the drive plate. The movable cylinder's moving end is fixed to the bottom of the pressure plate. Positioning blocks are provided on both sides of the movable cylinder. One side of the positioning block is fixed to one side of the transmission arm. A liquid supply chamber is installed on one side of the positioning block, and a nozzle is installed on the other side of the positioning block. The nozzle is connected to the liquid supply chamber. A pressurizing hose is connected to one side of the liquid supply chamber, and the pressurizing hose is connected to the movable cylinder.

[0012] Preferably, a support unit is provided on one side of the movable cylinder. The support unit includes an assembly frame, and pneumatic telescopic rods are installed on both sides of the assembly frame. A rubber plate is installed on the output end of the pneumatic telescopic rod.

[0013] Preferably, the drive plate has a mounting groove at one end near the support plate, a pin is installed inside the mounting groove, one end of the support plate is rotatably sleeved on the surface of the pin, and one end of the support plate is in movable contact with the top of the feeding inclined surface.

[0014] Preferably, the surface of the mounting plate is provided with spray holes, the top of the mounting plate is connected to and installed with a jet pump, and a heating resistance wire is installed inside the spray holes.

[0015] Preferably, a guide unit is installed near the mounting plate area of ​​the feeding trough. The guide unit includes a guide rod, a conveying plate is installed at the bottom of the guide rod, the conveying plate is installed obliquely on the inner wall of the feeding trough, and the guide rod is installed inside the feeding trough.

[0016] Preferably, a base is installed at the bottom of the support platform, a storage box is installed on one side of the support platform, and the bottom of the conveyor plate faces the top of the storage box.

[0017] Preferably, the support plate is L-shaped, with one end of the support plate attached to the bottom of the mounting groove and the other end of the support plate attached to the surface of the material feeding slope.

[0018] The present invention also provides a U-bending machine, which includes the U-bending machine feeding device described above.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The U-bending machine conveys the processed U-bends to the feeding trough area via the feeding sloping plate. The U-bends slide down the feeding sloping plate to the top of the guide plate. The U-shaped area of ​​the U-bend falls outside the guide plate. Under the action of gravity, the U-bends adhere to the outer surface of the electric telescopic rod at the bottom of the guide plate. At this time, by controlling the unfolding of the pneumatic telescopic rod and the rubber plate, the initial position of the U-bends is calibrated. Subsequently, the stacked U-bends are intermittently stacked along the top of the initial U-bends to ensure that multiple sets of U-bends are stacked neatly, reduce the contact area of ​​each part of the U-bends, and reduce excessive wear of the U-bends during transportation.

[0021] 2. After stacking is completed, control the moving end of the electric telescopic rod to descend. During the descent, the electric telescopic rod presses down the moving end of the movable cylinder through the pressure plate, and causes the movable cylinder to inject pressurized gas into the liquid supply chamber through the pressurization hose. This causes the nozzle to spray the injection molding material onto the inner wall of the stacked U-bends, filling the spaces between the stacked U-bends. This allows the stacked U-bends to be molded as a single unit, thereby further reducing wear on the U-bends during transportation.

[0022] 3. During the descent of the moving end of the electric telescopic pole, the positioning block will be driven to descend vertically through the drive arm and transmission arm. When the positioning block descends, the nozzle will spray the injection material along the inner wall of the vertically stacked U-bend tubes. The spray range of the liquid is wider, so that the liquid fills the inner wall of the U-bend tubes more fully and improves the integrated molding effect of the stacked U-bend tubes.

[0023] 4. After the stacked U-bends are integrally formed, the drive plate is moved by the direct drive guide rail, causing the drive plate to push the support plate close to the guide rod. When the support plate detaches from the surface of the feeding slope, one side of the support plate loses support, causing the support plate to rotate in the mounting groove and face the ground under the action of the pin. This causes the electric telescopic rod and the guide plate to tilt. As the drive plate continues to move, the end of the support plate near the bottom of the feeding groove will contact the guide rod, causing the support plate to continue to rotate. This causes the stacked U-bends to detach from the electric telescopic rod and the guide plate. At this time, the stacked U-bends complete the flipping and reversal. At the same time, the U-bends fall onto the top of the conveyor plate. The top of the conveyor plate will be supplied with gas from the jet pump. The gas is heated by the heating resistance wire, which further dries the injection molding material on the U-bends, further improving the integral forming effect of the stacked U-bends. At the same time, the injection molding material on the U-bends can replace the wear of the U-bends on the conveyor plate, thereby further reducing the wear on the bottom of the U-bends and ensuring the yield of U-bends. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall device of the present invention;

[0025] Figure 2 This is a schematic diagram of the support platform in this invention;

[0026] Figure 3 This is a schematic diagram of the mounting plate portion in this invention;

[0027] Figure 4 This is a schematic diagram of the support frame portion in this invention;

[0028] Figure 5 This is a schematic diagram of the feeding inclined plate in this invention;

[0029] Figure 6 This is a schematic diagram of the driver board portion in this invention;

[0030] Figure 7 This is a schematic diagram of the movable cylinder part in the present invention;

[0031] Figure 8 This is a schematic diagram of the support plate portion in this invention;

[0032] Figure 9 This is a schematic diagram of the guide panel portion in this invention;

[0033] Figure 10 This is a schematic diagram of the assembly frame in this invention.

[0034] In the diagram: 1. Support platform; 11. Feed chute; 111. Feeding ramp; 12. Slide; 121. Direct drive guide rail; 13. Drive plate; 131. Mounting slot; 132. Pin; 14. Support frame; 15. Feeding ramp; 16. Guide rod; 17. Conveying plate; 18. Support plate; 19. Base platform; 2. Mounting plate; 21. Jet pump; 22. Nozzle; 23. Heating resistor wire; 3. Electric telescopic rod; 31. Guide enclosure; 311. Opening; 32. Pressure plate; 33. Drive arm; 34. Transmission arm; 4. Movable cylinder; 41. Assembly frame; 42. Pneumatic telescopic rod; 43. Rubber plate; 5. Positioning block; 51. Nozzle; 52. Liquid supply tank; 53. Pressurization hose; 6. Storage box. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1-10 The present invention provides a technical solution:

[0037] Example 1: A U-bending pipe machine feeding device and U-bending pipe machine: including a support platform 1 and a mounting plate 2, a slide groove 12 is provided on the top of one side of the support platform 1, a direct drive guide rail 121 is installed inside the slide groove 12, a drive plate 13 is installed on the moving end of the direct drive guide rail 121, a feeding groove 11 is provided on the other side of the support platform 1, a feeding inclined surface 111 is provided on the inner wall of the feeding groove 11 near the drive plate 13, a support frame 14 is installed on the top of the support platform 1, a feeding inclined plate 15 is installed on the support frame 14 near the feeding groove 11, and a support plate 18 is provided at one end of the drive plate 13;

[0038] A base platform 19 is installed at the bottom of the support platform 1, and a storage box 6 is installed on one side of the support platform 1. The bottom of the conveyor plate 17 faces the top of the storage box 6.

[0039] The support plate 18 is L-shaped, with one end of the support plate 18 attached to the bottom of the mounting groove 131 and the other end of the support plate 18 attached to the surface of the unloading slope 111.

[0040] A mounting groove 131 is provided at one end of the drive plate 13 near the support plate 18. A pin 132 is installed inside the mounting groove 131. One end of the support plate 18 is rotatably sleeved on the surface of the pin 132. One end of the support plate 18 is in active contact with the top of the unloading inclined surface 111.

[0041] In this embodiment, the top of the storage box 6 is open to facilitate the storage of the injection-molded U-bend tube.

[0042] The setting of the feeding ramp 111 ensures that when the support plate 18 is at the top of the feeding ramp 111, the angle between the electric telescopic rod 3 and the guide plate 31 and the plane at the top of the support platform 1 is 35°. This makes it possible for the U-bend to fall quickly onto the guide plate 31 when the external U-bend falls from the feeding ramp 15 onto the guide plate 31, and to quickly adhere to the surface of the electric telescopic rod 3 at the bottom of the guide plate 31 due to gravity. After the first U-bend falls, the position of the first U-bend is calibrated by controlling the unfolding of the pneumatic telescopic rod 42 and the rubber plate 43. Subsequently, the U-bends are intermittently stacked along the top of the first U-bend, thereby ensuring that multiple sets of U-bends are stacked neatly, reducing the contact area of ​​each part of the U-bend, and reducing excessive wear of the U-bends during transportation.

[0043] The support plate 18 is composed of three plate sections. The first plate section near the pin 132 has a second plate section vertically mounted at one end. The angle between the second plate section and the third plate section is 60°. This ensures that when the support plate 18 is detached from the feeding slope 111 and faces the ground, the electric telescopic rod 3 and the guide plate 31 on the support plate 18 remain tilted towards the air, and the U-bend will not slip off the electric telescopic rod 3 and the guide plate 31.

[0044] As the drive plate 13 continues to move, the end of the support plate 18 near the bottom of the feeding trough 11 will contact the guide rod 16, causing the support plate 18 to continue to rotate. This causes the stacked U-bends to detach from the electric telescopic rod 3 and the guide plate 31. At this time, the stacked U-bends are flipped over, and the electric telescopic rod 3 and the guide plate 31 will rotate towards the ground. Simultaneously, the U-bends fall onto the top of the conveyor plate 17. The top of the conveyor plate 17 will be supplied with gas from the jet pump 21. The gas is heated by the heating resistance wire 23, further drying the injection molding material on the U-bends and further improving the integrated molding effect of the stacked U-bends. At the same time, the injection molding material on the U-bends can replace the wear of the U-bends on the conveyor plate 17, thereby further reducing the wear at the bottom of the U-bends and ensuring the yield of the U-bends.

[0045] The guiding unit is located inside the feeding trough 11 and on the top of the support plate 18. It is used to guide and stack the U-bends falling from the feeding inclined plate 15 so that multiple sets of U-bends are stacked neatly.

[0046] The guiding unit includes an electric telescopic rod 3, which is installed on the top of the support plate 18 near the drive plate 13. A guide plate 31 is installed on the top surface of the electric telescopic rod 3. An opening 311 is provided on the side of the guide plate 31 away from the drive plate 13. A pressure plate 32 and a drive arm 33 are installed on the moving end of the electric telescopic rod 3 near the opening 311. A transmission arm 34 is installed at the bottom of the drive arm 33.

[0047] In this embodiment, after the stacking is completed, the moving end of the electric telescopic rod 3 is lowered. During the descent, the electric telescopic rod 3 presses down the moving end of the movable cylinder 4 through the pressure plate 32, causing the movable cylinder 4 to inject pressurized gas into the liquid supply chamber 52 through the pressurization hose 53. This causes the nozzle 51 to spray injection molding material onto the inner wall of the stacked U-bends, filling the spaces between the stacked U-bends and thus forming the stacked U-bends into a single unit, thereby further reducing wear on the U-bends during transportation.

[0048] The fixing unit is located on one side of the guide unit and is used to spray injection molding material into the U-bend tubes during the stacking process, so that the stacked U-bend tubes are sealed and fixed.

[0049] The fixed unit includes a movable cylinder 4, which is installed on the top of the support plate 18 away from the drive plate 13. The moving end of the movable cylinder 4 is fixed to the bottom of the pressure plate 32. Positioning blocks 5 are provided on both sides of the movable cylinder 4. One side of the positioning block 5 is fixed to one side of the transmission arm 34. A liquid supply chamber 52 is installed on one side of the positioning block 5. A nozzle 51 is installed on one side of the positioning block 5. The nozzle 51 is connected to the liquid supply chamber 52. A pressurizing hose 53 is connected to one side of the liquid supply chamber 52. The pressurizing hose 53 is connected to the movable cylinder 4.

[0050] In this embodiment, each set of liquid supply chambers 52 has six sets of nozzles 51. The three sets of nozzles 51 near the transmission arm 34 are set to two-thirds the size of the three sets of nozzles 51 far from the transmission arm 34, so as to avoid the nozzles 51 located at the far end of the liquid supply chambers 52 having too low pressure.

[0051] During the descent of the moving end of the electric telescopic rod 3, the positioning block 5 will be driven to descend vertically through the drive arm 33 and the transmission arm 34. When the positioning block 5 descends, the nozzle 51 will spray the injection material along the inner wall of the vertically stacked U-bend tubes. The spray range of the injection liquid is wider, so that the liquid fills the inner wall of the U-bend tubes more fully, improving the integrated molding effect of the stacked U-bend tubes.

[0052] A support unit is provided on one side of the movable cylinder 4. The support unit includes an assembly frame 41. Pneumatic telescopic rods 42 are installed on both sides of the assembly frame 41. A rubber plate 43 is installed on the output end of the pneumatic telescopic rods 42.

[0053] In this embodiment, after the first U-bend is dropped, the pneumatic telescopic rod 42 and the rubber plate 43 are unfolded by controlling the rubber plate 43 to open from the inside of the U-bend, thereby calibrating and fixing the position of the first U-bend. Subsequently, the U-bends are intermittently stacked along the top of the first U-bend to ensure that multiple sets of U-bends are stacked neatly.

[0054] Example 2:

[0055] Based on Embodiment 1, this embodiment considers that after the top of the U-bend is injection molded, the top of the U-bend will be covered with injection molding material. However, the U-bend located at the bottom of the stack is in contact with the top of the support plate 18, which causes the overall mass of the stacked U-bends to increase significantly when the bottom of the U-bend stack contacts the conveyor plate 17 for unloading. This will increase the wear on the surface of the bottom U-bend and the conveyor plate 17. In order to avoid the stacked U-bends from scattering during the unloading process, this embodiment provides a drying structure and a guiding unit to further dry and reinforce the injection molding material on the surface of the stacked U-bends during the unloading process. At the same time, the stacked U-bends are rotated and reversed so that the U-bend at the top of the stack contacts the conveyor plate 17.

[0056] The surface of the mounting plate 2 has a nozzle 22, and the top of the mounting plate 2 is connected to a jet pump 21. A heating resistance wire 23 is installed inside the nozzle 22.

[0057] A guide unit is installed in the area of ​​the feeding trough 11 near the mounting plate 2. The guide unit includes a guide rod 16. A conveying plate 17 is installed at the bottom of the guide rod 16. The conveying plate 17 is installed at an angle on the inner wall of the feeding trough 11. The guide rod 16 is installed inside the feeding trough 11.

[0058] In this embodiment, after the stacked U-bends are integrally formed, the drive plate 13 is moved by the direct drive guide rail 121, causing the drive plate 13 to push the support plate 18 closer to the guide rod 16. When the support plate 18 disengages from the surface of the feeding slope 111, one side of the support plate 18 loses support, causing the support plate 18 to rotate in the mounting groove 131 under the action of the pin 132. This causes the electric telescopic rod 3 and the guide plate 31 to tilt towards the ground. As the drive plate 13 continues to move, the end of the support plate 18 near the bottom of the feeding groove 11 will contact the guide rod 16, causing the support plate 18 to continue to rotate, thus causing the stacked... The U-bend detaches from the electric telescopic rod 3 and the guide plate 31. At this point, the stacked U-bends are flipped over, and the electric telescopic rod 3 and the guide plate 31 rotate toward the ground. Simultaneously, the U-bends fall onto the top of the conveyor plate 17. The top of the conveyor plate 17 is supplied with gas by the jet pump 21. The gas is heated by the heating resistance wire 23, which further dries the injection molding material on the U-bends, further improving the integrated molding effect of the stacked U-bends. At the same time, the injection molding material on the top U-bends replaces the wear of the top U-bends on the conveyor plate 17, thereby further reducing the wear on the bottom of the U-bends and ensuring the yield of U-bends.

[0059] The present invention also provides a U-bending machine, which includes a U-bending machine feeding device.

[0060] Working principle: During use, the U-bending machine transports the processed U-bending tubes to the feeding trough 11 area via the feeding ramp 15. The U-bending tubes slide down the feeding ramp 15 to the outside of the guide plate 31. The U-bending tubes quickly fall onto the guide plate 31 and adhere to the surface of the electric telescopic rod 3 at the bottom of the guide plate 31 due to gravity. After the first U-bending tube falls, the position of the first U-bending tube is calibrated by controlling the unfolding of the pneumatic telescopic rod 42 and the rubber plate 43. Subsequently, the U-bending tubes are intermittently stacked along the top of the first U-bending tube to ensure that multiple sets of U-bending tubes are stacked neatly, reduce the contact area of ​​each part of the U-bending tubes, and reduce excessive wear of the U-bending tubes during transportation.

[0061] After the stacking is completed, the moving end of the electric telescopic rod 3 is lowered. During the descent, the electric telescopic rod 3 presses down the moving end of the movable cylinder 4 through the pressure plate 32, and the movable cylinder 4 injects pressurized gas into the liquid supply chamber 52 through the pressurization hose 53. This causes the nozzle 51 to spray the injection molding material onto the inner wall of the stacked U-bends, filling the space between the stacked U-bends and making the stacked U-bends integrally molded, thereby further reducing the wear of the U-bends during transportation.

[0062] During the descent of the moving end of the electric telescopic rod 3, the positioning block 5 will be driven to descend vertically through the drive arm 33 and the transmission arm 34. When the positioning block 5 descends, the nozzle 51 will spray the injection material along the inner wall of the vertically stacked U-bend tubes. The spray range of the injection liquid is wider, so that the liquid fills the inner wall of the U-bend tube more fully, and improves the integrated molding effect of the stacked U-bend tubes.

[0063] After the stacked U-bends are integrally formed, the drive plate 13 is moved by the direct drive guide rail 121, causing the drive plate 13 to push the support plate 18 closer to the guide rod 16. When the support plate 18 disengages from the surface of the feeding slope 111, one side of the support plate 18 loses support, causing the support plate 18 to rotate in the mounting groove 131 under the action of the pin 132. This causes the electric telescopic rod 3 and the guide plate 31 to tilt towards the ground. As the drive plate 13 continues to move, the end of the support plate 18 near the bottom of the feeding groove 11 will contact the guide rod 16, causing the support plate 18 to continue rotating, thus causing the stacked U-bends to... After detaching from the electric telescopic rod 3 and guide plate 31, the stacked U-bends are flipped over. The electric telescopic rod 3 and guide plate 31 rotate towards the ground, and the U-bends fall onto the top of the conveyor plate 17. The top of the conveyor plate 17 is supplied with gas by the jet pump 21. The gas is heated by the heating resistance wire 23, and the injection molding material on the U-bends is further dried, which further improves the integrated molding effect of the stacked U-bends. At the same time, the injection molding material on the top U-bends replaces the wear of the top U-bends on the conveyor plate 17, thereby further reducing the wear at the bottom of the U-bends and ensuring the yield of U-bends.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding device for a U-bending pipe machine, characterized in that: The support includes a support platform (1) and a mounting plate (2). A slide groove (12) is provided on the top of one side of the support platform (1). A direct drive rail (121) is installed inside the slide groove (12). A drive plate (13) is installed on the moving end of the direct drive rail (121). A feeding groove (11) is provided on the other side of the support platform (1). A feeding ramp (111) is provided on the inner wall of the feeding groove (11) near the drive plate (13). A support frame (14) is installed on the top of the support platform (1). A feeding ramp (15) is installed on the support frame (14) near the feeding groove (11). A support plate (18) is provided at one end of the drive plate (13). The guiding unit is located inside the feeding trough (11) and on the top of the support plate (18). It is used to guide and stack the U-bends falling from the feeding inclined plate (15) so that multiple sets of U-bends are stacked neatly. A fixing unit is disposed on one side of the guiding unit and is used to spray liquid injection molding material into the U-bend tubes during the stacking process of U-bend tubes, so that the stacked U-bend tubes are sealed and fixed.

2. The U-bending pipe machine feeding device according to claim 1, characterized in that: The guiding unit includes an electric telescopic rod (3), which is installed on the top of the support plate (18) near the drive plate (13). A guide plate (31) is installed on the top surface of the electric telescopic rod (3). An opening (311) is provided on the side of the guide plate (31) away from the drive plate (13). A pressure plate (32) and a drive arm (33) are installed on the moving end of the electric telescopic rod (3) near the opening (311). A transmission arm (34) is installed at the bottom of the drive arm (33).

3. The U-bending pipe machine feeding device according to claim 2, characterized in that: The fixed unit includes a movable cylinder (4), which is installed on the top of the support plate (18) away from the drive plate (13). The movable end of the movable cylinder (4) is fixed to the bottom of the pressure plate (32). Positioning blocks (5) are provided on both sides of the movable cylinder (4). One side of the positioning block (5) is fixed to one side of the transmission arm (34). A liquid supply chamber (52) is installed on one side of the positioning block (5). A nozzle (51) is installed on one side of the positioning block (5). The nozzle (51) is connected to the liquid supply chamber (52). A pressure-boosting hose (53) is connected to one side of the liquid supply chamber (52). The pressure-boosting hose (53) is connected to the movable cylinder (4).

4. The U-bending pipe machine feeding device according to claim 3, characterized in that: A support unit is provided on one side of the movable cylinder (4). The support unit includes an assembly frame (41). Pneumatic telescopic rods (42) are installed on both sides of the assembly frame (41). A rubber plate (43) is installed on the output end of the pneumatic telescopic rods (42).

5. The U-bending pipe machine feeding device according to claim 1, characterized in that: The drive plate (13) has an installation groove (131) near one end of the support plate (18). A pin (132) is installed inside the installation groove (131). One end of the support plate (18) is rotatably sleeved on the surface of the pin (132). One end of the support plate (18) is in active contact with the top of the feeding inclined surface (111).

6. The U-bending pipe machine feeding device according to claim 1, characterized in that: The mounting plate (2) has a nozzle (22) on its surface. A jet pump (21) is connected to the top of the mounting plate (2). A heating resistance wire (23) is installed inside the nozzle (22).

7. The U-bending pipe machine feeding device according to claim 1, characterized in that: A guide unit is installed in the area of ​​the feeding trough (11) near the mounting plate (2). The guide unit includes a guide rod (16). A conveying plate (17) is installed at the bottom of the guide rod (16). The conveying plate (17) is installed obliquely on the inner wall of the feeding trough (11). The guide rod (16) is installed inside the feeding trough (11).

8. The U-bending pipe machine feeding device according to claim 7, characterized in that: The support platform (1) has a base platform (19) installed at its bottom, and a storage box (6) is installed on one side of the support platform (1). The bottom of the conveyor plate (17) faces the top of the storage box (6).

9. The U-bending pipe machine feeding device according to claim 5, characterized in that: The support plate (18) is L-shaped, with one end of the support plate (18) attached to the bottom of the mounting groove (131) and the other end of the support plate (18) attached to the surface of the feeding slope (111).

10. A U-bending machine, characterized in that, Includes a U-bending machine feeding device as described in any one of claims 1 to 9.

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