Automatic bending machine for ub hanging plate

Abstract

The application discloses a kind of UB hanging plate automatic bending machine, by power device, bending part and rack constitute, bending part includes material box, carousel, movable module, fixed module, wherein: carousel surface center part is equipped with vertical vertical shaft, movable module is fixed on carousel, and with the recess gap adaptation of fixed module inner side surface of one end of first fixed die seat installed in rack table top, material box is fixed in one end of second fixed die seat, and its discharge port is opposite to fixed module inner side surface;Feeding pump is fixed on the side surface of rack, and its telescopic end is opposite to the interstice of discharge port and fixed module inner side surface;The edge portion of carousel is equipped with bump block, the surface of rack on the both sides of carousel is respectively equipped with stopper, two stoppers are respectively located on the same diameter extension line of carousel, and bump block is necessarily contacted with two stoppers when doing circumferential rotation with carousel.This application can realize the full automation of UB hanging plate bending process, improve production efficiency, simple operation, greatly reduce work intensity and difficulty.

Description

Technical Field

[0001] This invention relates to the field of panel processing technology, and more particularly to panel bending equipment. Background Technology

[0002] The demand for UB (Underpind) mounting plates in power equipment is enormous, required by every transmission line, substation, and distribution network, with an annual demand exceeding millions of sets. Therefore, UB mounting plate production equipment needs high efficiency. The traditional bending process involves first bending pre-cut and punched raw materials into a V-shape using a special die on a bending machine. Then, the V-shaped product is further bent into a U-shape using a different bending machine with a positive die, producing the final product. This bending method requires two bending machines and at least two operators per cycle, making the process cumbersome and inefficient. Furthermore, the bending process is labor-intensive, increasing the difficulty and risk for operators, and it cannot adequately guarantee their safety. Additionally, it is unsuitable for processing different types of mounting plates. Summary of the Invention

[0003] To overcome the above-mentioned technical defects, the present invention provides an automatic bending machine for UB hanging plates that is simple and safe to operate, highly efficient, and capable of automating the bending process of different models.

[0004] The present invention provides the following technical solution:

[0005] An automatic bending machine for UB hanging panels comprises a power unit, a bending section, and a frame. The power unit is installed on the lower side of the frame, while the bending section is located above the power unit. The output shaft of the power unit is connected to the bending section. The bending section includes a material box, a turntable, a moving module, and a fixed module. A vertical shaft is provided at the center of the turntable surface. The moving module is fixed on the turntable and is fitted with a groove on the inner side of the fixed module at one end of a first fixed mold base mounted on the frame table. The material box is fixed at one end of a second fixed mold base, with its outlet facing the inner side of the fixed module. A feeding pump is fixed on the side of the frame, with its extension end facing the gap between the outlet and the inner side of the fixed module. A stop block is provided on the edge of the turntable. A first limiter and a second limiter are respectively installed on the frame surfaces on both sides of the turntable. The two limiters are located on the same diameter extension line of the turntable. When the stop block rotates circumferentially with the turntable, it will inevitably collide with the two limiters.

[0006] Compared with the prior art, the beneficial effects of the present invention are as follows: the traditional process requires two machines and two workers to bend a UB hanging plate, and the average time is 1-1.2 minutes. Now, bending a hanging plate can be completed with one machine and one worker in just 0.2 minutes, which improves efficiency by 200%, greatly improves production efficiency, and saves manpower and material resources. In addition, during the operation of the equipment, the operator only needs to add raw materials, making the work very simple and easy, greatly reducing the intensity and difficulty of the work, and ensuring the safety of the operator.

[0007] Preferably, the output shaft of the power unit is keyed to the center of the turntable. This keyed connection uses a key to circumferentially fix the shaft and its components to transmit motion and torque. The turntable has a keyway at its lower center for embedding the key. The power unit contains a motor, a large gear, a small pulley, and another large pulley and small gear. The output shaft of the power unit is the output shaft of the large gear. The key inside the output shaft engages with the keyway at the center of the turntable. The large gear drives the turntable to rotate via the output shaft, controlling the turntable's speed and direction. This connection method has the advantages of simple structure, convenient installation and disassembly, good alignment, and a compact and reliable connection.

[0008] Preferably, the moving module has an internal through-hole that connects to the strip-shaped through-hole bolt in the turntable. After adjusting the moving module to the appropriate matching distance with the inner side of the stationary module, it is then fixed to the turntable with bolts, which can accommodate the bending processing of UB hanging plates of different thicknesses.

[0009] Preferably, the fixed module has through-holes at both ends, which are bolted to the strip-shaped through-holes in the first and second fixed mold bases, respectively, and the bottom of the fixed module is higher than the turntable plane. The fixed module is fixed by bolts to the mold base A and the second fixed mold base, which are not in contact with the turntable, and the bottom of the fixed module will not contact the surface of the turntable. The gap between the inner side of the fixed module and the central vertical axis of the turntable can be adjusted according to the thickness of the raw material being processed.

[0010] In a further preferred embodiment, the top surface of the first fixed mold base slopes downwards along the pushing direction of the telescopic end, with the top of the slope higher than the turntable plane and the bottom of the slope connected to the inlet of the material discharge groove. The completed hanging plate is pushed to the top of the slope and then slides from the slope of the fixed mold base into the material discharge groove.

[0011] Preferably, the material box has a rectangular structure with an open top and reinforcing ribs that are fixedly connected to the side walls of the material box. The open top allows operators to observe the quantity of raw materials, while the reinforcing ribs at the top strengthen the material box and ensure its stability.

[0012] Preferably, the material bin is equipped with a spring-loaded pushing device, the pushing end of which is a square plate structure and is positioned opposite the discharge port. Under the action of the pushing end, the raw material in the bin stands vertically at the bottom of the bin and is continuously pushed to the discharge port of the bin, facilitating feeding by the feed pump.

[0013] Preferably, an alarm is installed on the side of the material bin, and a pressure sensor is installed at the bottom of the material bin. The pressure sensor is electrically connected to the alarm. When there is not much raw material left in the material bin, and the pressure sensor experiences a pressure lower than a set value, the pressure sensor transmits a signal to the alarm through a wire, and the alarm sounds.

[0014] Preferably, the extension end of the feed pump is controlled by a solenoid valve, and its pushing distance can be adaptively adjusted according to the length of the raw material being processed. The pump body of the feed pump remains stationary, and the pushing distance of the extension end is controlled by setting the pushing time of the extension end, thereby adapting to the processing of UB hanging plates of different lengths.

[0015] Working principle of a solenoid valve: Inside the solenoid valve is a sealed cavity with a piston in the middle and two electromagnets on either side. Once the electromagnet coil is energized, the valve body is attracted to the direction of the energized electromagnet. Different through holes are opened at different positions in the cavity, connecting to different oil pipes. Therefore, the part of the drain hole to be opened can be selected by controlling the movement of the valve body. Since the oil inlet is in the normally open state, the movement of the valve body allows hydraulic oil to enter different drain pipes. The oil pressure pushes the piston of the cylinder, which in turn pushes the piston rod, thereby driving the mechanical device. Using this principle, the extension and retraction movement of the telescopic end can be controlled by switching the current on and off the electromagnet.

[0016] Preferably, both the first and second limit switches contain limit switches connected to the internal circuitry to control the forward and reverse rotation of the motor. The impact block follows the turntable's circumferential rotation and contacts the limit switches on both sides of the turntable, triggering the internal limit switches. This changes the phase sequence of the motor's three-phase power supply, thus changing the motor's rotation direction.

[0017] The principle of forward and reverse control of a three-phase asynchronous motor: To achieve forward and reverse rotation of the motor, simply swap any two phases of the three-phase power supply lines connected to the motor. This can be achieved using two contactors, KM1 and KM2, to switch the phase sequence of the three-phase power supply to the motor. However, the two contactors cannot be engaged simultaneously. That is, when KM1 is energized and KM2 is de-energized, the motor rotates forward; when KM1 is de-energized and KM2 is energized, the motor rotates in reverse. Therefore, the forward and reverse rotation of the motor can be controlled by using limit switches to control the energization and de-energization of the KM1 and KM2 circuits. Attached Figure Description

[0018] The present invention will be described by way of example and with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a top view of the present invention;

[0020] Figure 2 This is a side view of the present invention;

[0021] Figure 3This is a cross-sectional view of the connection between the turntable and the output shaft of the present invention;

[0022] Figure 4 This is a vertical cross-sectional view of the connection between the turntable and the output shaft of the present invention;

[0023] Figure 5 This is a flowchart of the internal circuit control.

[0024] The diagram shows the following components: power unit 1, frame 2, material box 3, discharge port 31, reinforcing rib 32, spring pressing device 33, pushing end 331, turntable 4, vertical shaft 41, impact block 42, moving module 5, fixed module 6, first fixed mold base 61, second fixed mold base 62, groove 63, feeding pump 7, telescopic end 71, bracket 72, first limiter 8, second limiter 9, motor 10, large gear 11, output shaft 111, key 112, small pulley 12, belt 13, large pulley 14, small gear 15, and discharge chute 16. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] Example 1: As Figure 1 , Figure 2The UB automatic bending machine for hanging panels shown comprises a power unit 1, a bending section, and a frame 2. The power unit 1 is installed below the frame 2, and the bending section is located above the power unit 1. The output shaft 111 of the power unit 1 is connected to the bending section. The bending section includes a material box 3, a turntable 4, a moving module 5, and a fixed module 6. The turntable 4 has a vertical shaft 41 at its center. The moving module 5 is fixed on the turntable 4 and can rotate with it. It is fitted with a groove 63 on the inner side of the fixed module 6 at one end of the first fixed mold base 61 installed on the platform of the frame 2. The material box 3 is fixed to the second fixed mold base 62. One end of the turntable 4 has its discharge port 31 facing the inner side of the fixed module 6. The fixed module 6 is fixed by the first fixed mold base 61 and the second fixed mold base 62 on both sides of the turntable 4, spanning the surface of the turntable 4, and the bottom surface of the fixed module 6 does not contact the surface of the turntable 4. The feeding pump 7 is fixed on the side of the frame 2, and its telescopic end 71 is facing the gap between the discharge port 31 and the inner side of the fixed module 6. The edge of the turntable 4 is provided with a bumper 42. The surface of the frame 2 on both sides of the turntable 4 is respectively equipped with a first limiter 8 and a second limiter 9. The two limiters are located on the same diameter extension line of the turntable 4. When the bumper 42 rotates circumferentially with the turntable 4, it will collide with the two limiters. In use, the telescopic end 71 of the feeding pump 7 can push the raw material along the inner side of the fixed module 6 to the fixed position on the turntable 4. Then the turntable 4 rotates, driving the moving module 5 to rotate. The moving module 5 drives the raw material to rotate around the vertical shaft 41 to form the UB hanging plate. When the impact block 42 rotates with the turntable 4, it will collide with the first limiter 8 and the second limiter 9 on both sides of the turntable 4, thereby controlling the motor 10 to automatically reciprocate in a cycle, and the turntable 4 will make half a revolution back and forth.

[0027] Example 2: Figure 2 , Figure 3 , Figure 4 As shown, based on Embodiment 1, this device features an optimized design for the connection between the power unit 1 and the turntable 4, specifically, the output shaft 111 of the power unit 1 is keyed to the center of the turntable 4. During operation, the motor 10 within the power unit 1 is connected to the small pulley 12, which drives the small pulley 12 to rotate. The small pulley 12, via the belt 13, drives the large pulley 14 to rotate, achieving the first deceleration. The large pulley 14 is coaxially connected to the small gear 15, which drives the small gear 15 to rotate. A large gear 11 is mounted on one side of the small gear 15, and its rotation drives the large gear 11 to rotate, achieving the second deceleration. The key 112 within the output shaft 111 of the large gear 11 engages with the key 112 groove inside the lower center of the turntable 4. When the large gear 11 rotates, the output shaft 111 at the center of the large gear 11 drives the turntable 4 to rotate together. Thus, the rotation direction of the turntable 4 can be controlled by controlling the rotation direction of the motor 10.

[0028] Example 3: As Figure 1As shown, based on Embodiment 1, the fixed module 6 and moving module 5 of this device are optimized in terms of their fixing method. In this embodiment, there are two fixed mold bases: a first fixed mold base 61 is fixed to the side frame 2 of the material feed trough 16 and connected to the material feed trough 16; a second fixed mold base 62 is located on the side frame 2 of the material box 3. The two fixed mold bases are on both sides of the turntable 4, facing each other, with gaps between the two fixed mold bases and the edge of the turntable 4. The fixed module 6 is located on the upper surface of the first fixed mold base 61 and the second fixed mold base 62, and has through-holes at both ends, which are connected to the strip-shaped through-holes in the first fixed mold base 61 and the second fixed mold base 62 respectively by bolts. The top and bottom ends of the bolts are fixed with nuts. Similarly, the moving module 5 has through-holes that are connected to the strip-shaped through-holes in the turntable 4 by bolts. The top and bottom ends of the bolts are fixed with nuts. The direction of the strip-shaped through-holes is perpendicular to the length direction of the fixed module 6. In use, the bolts inside the through-hole of the fixed module 6 can move along the length of the strip-shaped through-hole within the first fixed mold base 61 and the second fixed mold base 62. This allows the distance between the fixed module 6 and the vertical shaft 41 to be adjusted according to the thickness of different raw materials. After determining the distance, tighten the nuts to fix the fixed module 6 onto the first fixed mold base 61 and the second fixed mold base 62. Correspondingly, the moving module 5 can also be adjusted to match the inner groove 63 of the fixed module 6 according to its position. Then, tighten the nuts to fix the moving module 5 onto the turntable 4. Therefore, different types of raw materials only need to have their mold positions adjusted in advance, and the equipment can automatically process them during operation. Furthermore, the top surfaces of the first fixed mold base 61 and the second fixed mold base 62, as well as the bottom of the fixed module 6, are at the same height and 3mm higher than the upper surface of the turntable 4. Neither the first fixed mold base 61 nor the second fixed mold base 62 will contact the edge of the turntable 4. Therefore, the first fixed mold base 61, the second fixed mold base 62, and the fixed module 6 will not affect the rotation of the turntable 4, and the processed finished products can be smoothly pushed from the turntable 4 onto the first fixed mold base 61.

[0029] Example 4: Figure 1 , Figure 2 As shown, based on Embodiment 3, the upper surface of the first fixed mold base 61 of this device is preferably designed. The top surface of the first fixed mold base 61 slopes downward along the pushing direction of the telescopic end 71. The top of the slope is higher than the plane of the turntable 4, and the bottom of the slope is connected to the inlet of the material discharge groove 16. The finished hanging plate is pushed to the top of the slope and then slides into the material discharge groove 16 from the slope.

[0030] Example 5: Figure 1As shown, based on Embodiment 1, this equipment features an optimized design for the material bin 3. The material bin 3 is a cuboid structure with an open top. Reinforcing ribs 32 are fixedly connected to the side walls of the material bin 3 at the top. A spring-loaded pushing device 33 is installed inside the material bin 3, with its pushing end 331 being a square plate-like structure, facing the discharge port 31. The reinforcing ribs 32 are located at the top of the spring-loaded pushing device 33 at the front of the material bin 3. This structure facilitates the stability of the material bin 3 without obstructing the operator's observation of the raw materials. The pushing end 331 of the spring-loaded pushing device 33 can neatly arrange the raw materials inside the material bin 3 in a vertical, upright manner at the bottom of the bin. An alarm is also provided on the side of the material bin 3, and a pressure sensor is installed at the bottom of the material bin 3, electrically connected to the alarm. When the equipment is running, the spring-pressing device 33 pushes the raw material in the material box 3 to the discharge port 31, and then the feeding pump 7 feeds the material. The raw material in the material box 3 will gradually decrease. When there is not much raw material left in the material box 3, the pressure sensor will be lower than the set value. The pressure sensor transmits a signal to the alarm through the wire, and the alarm will sound to remind the operator to add material. The operator does not need to keep an eye on the material box 3 all the time.

[0031] Example 6: As Figure 1 As shown, based on Embodiment 1, this equipment features an optimized design for the feed pump 7. The feed pump 7 is located on the frame 2 on the side of the material box 3 and is fixed by two supports 72. The telescopic end 71 is located at the front end of the feed pump 7. An electromagnetic valve inside the feed pump 7 controls the extension and retraction of the telescopic end 71, and its pushing distance can be adaptively adjusted according to the length of the processed material. When energized, the electromagnetic coil generates electromagnetic force, directly attracting the valve core, causing the valve core to shift, and the telescopic end 71 pushes the material. When de-energized, the electromagnetic force disappears, the valve core is reset by a spring, and the telescopic end 71 resets. The energizing time of the electromagnetic coil is controlled by a time relay in the internal circuit, and the time relay setting time is determined by the length of the material.

[0032] Example 7. Figure 1 , Figure 5 As shown, based on Embodiment 1, this device features an optimized internal circuit design, employing limit switches to achieve automatic reciprocating cyclic motion of the motor 10. The first limit switch 8 and the second limit switch 9 are located on both sides of the turntable 4, each containing a limit switch. Each limit switch contains two pairs of normally open and normally closed contacts connected to the internal circuitry, used to control the opening or closing of the km1 and km2 circuits, thereby controlling the forward and reverse rotation of the motor 10.

[0033] Internal circuit control process: Please refer to Figure 5The flowchart shows the process: Turning on the main switch connects the KM1 circuit, causing motor 10 to rotate forward, driving turntable 4 to rotate clockwise. The stop block 42 on turntable 4 hits the limit switch inside the first limit switch 8. The normally closed contact of KM1 inside the limit switch opens, and the normally open contact of KM2 inside closes, thus de-energizing the KM1 circuit and stopping motor 10's forward rotation. The KM2 circuit then connects, and motor 10 begins to rotate in reverse. The reverse rotation of motor 10 drives turntable 4 to rotate counter-clockwise. The stop block 42 on turntable 4 then hits the limit switch inside the second limit switch 9. The normally closed contact of KM2 inside this limit switch opens, and the normally open contact of KM1 inside closes, thus de-energizing the KM2 circuit and stopping motor 10's forward rotation. When the reverse rotation stops at 0, the KM1 circuit is activated by the intermediate relay, which in turn activates the time relay and the solenoid valve coil. The time relay starts timing, with the timing time pre-set according to the length of the raw material. Under the action of the time relay, the KM1 circuit is energized for a delay, so the motor will not rotate forward. At the same time, the solenoid valve coil in the feed pump 7 is energized, and the extension end 71 of the feed pump 7 begins to push the feed. After the timing time of the time relay ends, the solenoid valve coil in the feed pump 7 is de-energized, the extension end 71 returns to its original position, and the KM1 circuit is energized again, causing the motor 10 to start rotating forward. Thus, the motor 10 automatically reciprocates in a cycle, and the turntable 4 rotates with the motor 10.

[0034] Equipment operation process: such as Figure 1 , Figure 2As shown, when the equipment starts, the motor 10 rotates clockwise for the first time, and the turntable 4 rotates clockwise with the motor 10. When the turntable 4 rotates to a certain extent, the impact block 42 on the turntable 4 hits the first limit switch 8. The limit switch inside the limit switch controls the motor 10 to rotate in reverse, and the turntable 4 rotates counterclockwise with the motor 10. When the turntable 4 rotates to a certain extent, it hits the second limit switch 9. At this time, the feeding pump 7 pushes the raw material in the material box 3, which is close to the inside of the fixed module 6, out of the discharge port 31 through the telescopic end 71 and onto the turntable 4. After the time relay in the internal circuit of the equipment finishes timing, the telescopic end 71 returns to its original position, and the turntable 4 begins to rotate clockwise. The raw material pushed onto the turntable 4 is fixed by the fixed module 6 and the vertical shaft 41. The distance between the inside of the fixed module 6 and the vertical shaft 41 is adjustable. The fixed module 6 and the vertical shaft 41 do not completely clamp the raw material, and the raw material can move along the length of the fixed module 6. The turntable 4 moves in the direction of rotation, causing the moving module 5 to rotate. The moving module 5 causes the material on one side of the vertical shaft 41 to rotate clockwise around the vertical shaft 41 to form a U-shaped hanging plate, completing the bending process of the first UB hanging plate. The impact block 42 on the turntable 4 contacts the first limiter 8 again, the motor 10 reverses, and the turntable 4 rotates counterclockwise with the motor 10. The impact block 42 on the turntable 4 hits the second limiter 9 again, and the feeding pump 7 pushes the second material in the material box 3, which is adjacent to the inner side of the fixed module 6, onto the turntable 4. The second material pushes the first processed UB hanging plate along the length of the fixed module 6 to the first fixed mold base 61 on the side of the discharge groove, and then slides from the top of the first fixed mold base 61 into the unloading groove 16. This completes one automatic feeding, bending, and discharge process of the UB hanging plate. The above process is repeated to complete the automatic processing of the UB hanging plate.

[0035] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. An automatic bending machine for UB hanging panels, comprising a power unit, a bending section, and a frame, wherein the power unit is installed on the lower side of the frame, and the bending section is located above the power unit, and the output shaft of the power unit is connected to the bending section, characterized in that: The curved section includes a material box, a turntable, a moving module, a fixed module, and a feeding pump. The turntable has a vertical shaft at its center. The moving module is fixed to the turntable and its clearance matches the groove on the inner side of the fixed module at one end of the first fixed mold base mounted on the machine frame. The bottom of the fixed module is higher than the turntable plane. The fixed module is fixed by the first and second fixed mold bases on both sides of the turntable and spans the turntable surface. The material box is fixed to one end of the second fixed mold base, and its outlet faces the inner side of the fixed module. The feeding pump is fixed to the side of the machine frame, and its telescopic end faces the gap between the outlet and the inner side of the fixed module. A stop block is provided at the edge of the turntable. A first limiter and a second limiter are respectively installed on the machine frame surfaces on both sides of the turntable. The two limiters are located on the same diameter extension line of the turntable. When the stop block rotates circumferentially with the turntable, it will inevitably collide with the two limiters. The fixed module has through-holes at both ends, which are respectively connected to the strip through-hole bolts in the first fixed mold base and the second fixed mold base; The top surface of the first fixed mold base slopes downward along the pushing direction of the feed pump telescopic end, with the top of the slope being higher than the turntable plane and the bottom of the slope being connected to the inlet of the feeding groove. An alarm is installed on the side of the hopper, and a pressure sensor is installed at the bottom of the hopper. The pressure sensor is electrically connected to the alarm. The extension end of the feed pump is controlled by a solenoid valve, and its pushing distance can be adaptively adjusted according to the length of the raw material being processed. Both the first and second limit switches contain limit switches that are connected to the internal circuitry.

2. The UB hanging plate automatic bending machine according to claim 1, characterized in that, The output shaft of the power unit is connected to the center key of the turntable.

3. The UB hanging plate automatic bending machine according to claim 1, characterized in that, The moving module has an internal port that is bolted to the strip-shaped port inside the turntable.

4. The UB hanging plate automatic bending machine according to claim 1, characterized in that, The material box has a rectangular structure with an open top and is equipped with reinforcing ribs that are fixedly connected to the side walls of the material box.

5. The UB hanging plate automatic bending machine according to claim 1, characterized in that, The material box is equipped with a spring-loaded pushing device, the pushing end of which is a square plate structure and is positioned opposite the discharge port.

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