Hydraulic support side guard plate bending device

Abstract

The utility model provides a hydraulic support side guard plate bending device which comprises an upper bending die and a lower bending die which are correspondingly arranged up and down, and a lifting limiting plate and a plurality of conveying roller ways capable of rotating forwards and backwards are arranged on the two sides of the lower bending die respectively. The conveying roller way is used for conveying one end of a to-be-bent plate to the bending lower die and conveying the other end of the to-be-bent plate to the bending lower die through reverse rotation. The limiting plate is used for limiting one end of the to-be-bent plate and limiting the other end of the to-be-bent plate when the conveying roller way rotates reversely. According to the hydraulic support side guard plate bending device, a to-be-bent plate can be driven to move through the conveying roller way to achieve automatic feeding and discharging, accurate positioning can be conducted through the limiting plate during feeding, manual intervention is not needed in the operation process, and therefore the production efficiency of side guard plate bending is improved, the labor intensity of workers is reduced, and the safety of a work site is improved.

Description

Technical Field

[0001] This utility model relates to the field of side guard plate bending equipment, specifically, to a hydraulic support side guard plate bending device. Background Technology

[0002] Hydraulic supports are key equipment in coal mining, primarily responsible for mine shaft support. Side plates are a crucial component of hydraulic supports. Traditionally, side plates were welded together from the top plate and side plate. To reduce welding and improve production efficiency, the welded structure was optimized into a single bent structure. Additionally, a two-piece cutting method was adopted during steel plate cutting, followed by bending the side plate and then separating it into two pieces. The optimized single-bent side plate is characterized by its large size and the need for secondary bending. Furthermore, the traditional side plate bending process requires manual operation of an overhead crane for loading and unloading, and bending by the bending machine. Due to the large size of the workpiece and the need for secondary bending, loading and unloading efficiency is low, safety is poor, and manual positioning accuracy is poor. Especially during the secondary bending, the overhead crane needs to be moved to the other side of the bending machine for loading and bending, which is cumbersome and affects efficiency. Moreover, traditional side plates frequently experience quality problems during bending, such as cracking, poor bending accuracy, and incomplete bending.

[0003] Patent application CN118893110A discloses a bending die, including an upper die, a lower die, a movable die for bending sheet metal, and a triggering assembly. The lower die has an upper die surface, a first positioning surface, and a first clearance surface at its bottom, and a lower die surface, a second positioning surface, and a second clearance surface at its top. The movable die is movably connected to the lower die. The triggering assembly includes a trigger element, which is movably connected to the lower die in a vertical direction, with its top positioned above the second clearance surface. When the trigger element moves downwards, the movable die moves closer to the upper die; when the upper die moves downwards to abut against the sheet metal, a gap exists between the first clearance surface and the trigger element. This bending die can improve the bending quality of sheet metal while maintaining high bending efficiency. However, this bending die does not have the functions of secondary bending and automatic feeding. Utility Model Content

[0004] In order to achieve automatic loading and unloading, automatic positioning, automatic secondary bending, improve the production efficiency of side guard plate bending, reduce labor intensity, and improve the safety of the work site, the technical solution adopted by this utility model is: a hydraulic support side guard plate bending device, including an upper bending die and a lower bending die arranged correspondingly at the top and bottom, and a lifting limit plate and several forward and reverse conveying rollers are respectively arranged on both sides of the lower bending die.

[0005] The conveyor roller conveyor is used to transfer one end of the sheet metal to be bent to the lower bending die for one bending, and to transfer the other end of the sheet metal to be bent after one bending to the lower bending die by reversing the direction of bending.

[0006] The limiting plate is used to limit one end of the sheet material to be bent when the conveyor rollers rotate forward, and to limit the other end of the sheet material to be bent after one bend when the conveyor rollers rotate in reverse.

[0007] Based on the above, in order to achieve small arc large angle bending, meet the requirements of the bending side guard plate, and avoid problems such as poor bending accuracy, incomplete bending, and frequent replacement of bending molds caused by the inconsistency of the bending arc radius and bending angle of the bending side guard plate, the upper bending mold is provided with an arc-shaped punch.

[0008] Based on the above, in order to facilitate adjustment, the lower bending die includes a pair of lower modules, the spacing between the pair of lower modules is adjustable, and a bending cavity is formed between the pair of lower modules.

[0009] Based on the above, in order to prevent deviation during bending, the axis of the pair of lower modules and the axis of the arc-shaped punch are on the same vertical plane.

[0010] Based on the above, in order to effectively support the sheet material to be bent during bending, the length values ​​of the pair of lower modules are equal to the length values ​​of the sheet material to be bent.

[0011] Based on the above, in order to ensure smooth loading and unloading, the specifications of several of the conveyor rollers are the same.

[0012] Based on the above, in order to facilitate adjustment and achieve smooth loading and unloading, the top of the conveyor roller is provided with an adjustable roller.

[0013] Based on the above, in order to improve bending efficiency and bending range, the length of the arc-shaped punch is greater than the length of the lower module.

[0014] Based on the above, on the same side of the lower bending die, the limiting plate is located between several of the conveyor rollers.

[0015] The sheet material to be bent is made of Q460 steel plate.

[0016] This utility model has substantial features and advancements compared to existing technologies. Specifically, the hydraulic support side guard plate bending device provided by this utility model, by setting conveyor rollers and limiting plates on both sides of the bending die of the automatic bending machine, can automatically load and unload the hydraulic support side guard plate by using the conveyor rollers, and use the limiting plates for precise positioning during loading. No human intervention is required during operation, improving the production efficiency of side guard plate bending, reducing the labor intensity of workers, and enhancing workplace safety. Furthermore, through the reciprocating motion and lifting of the rollers, two side guard plates can be bent at a time. After bending, the two side guard plates are separated from the outline of the drawing using a cutting machine, achieving highly efficient bending of the side guard plates.

[0017] Furthermore, by standardizing the bending angle of the side guard plates, all of them adopt small arc and large angle bending, thus meeting the usage requirements of the bent side guard plates. At the same time, it can also avoid problems such as poor bending accuracy, incomplete bending, and frequent replacement of bending molds caused by the inconsistency of the bending arc radius and bending angle of the bent side guard plates.

[0018] The hydraulic support side guard plate is made of Q460 steel plate, which can avoid the problem of bending and cracking of the side guard plate and greatly improve the bending quality and pass rate of the side guard plate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the initial state structure of the hydraulic support side guard plate bending device provided by this utility model.

[0020] Figure 2 This is a schematic diagram of the left-side loading state structure of the hydraulic support side guard plate bending device provided by this utility model.

[0021] Figure 3 This is a schematic diagram of the hydraulic support side guard plate bending device provided by this utility model in the first bending state.

[0022] Figure 4 This is a schematic diagram of the right-side loading state structure of the hydraulic support side guard plate bending device provided by this utility model.

[0023] Figure 5 This is a schematic diagram of the second bending state of the hydraulic support side guard plate bending device provided by this utility model.

[0024] Figure 6 This is a schematic diagram of the material cutting structure of the plate to be bent before bending using the hydraulic support side guard plate bending device provided by this utility model.

[0025] Figure 7 This is a schematic diagram of the hydraulic support side guard plate structure processed using the hydraulic support side guard plate bending device provided by this utility model.

[0026] Figure 8 This is a schematic diagram of the cross-sectional structure of a hydraulic support side guard plate processed using the hydraulic support side guard plate bending device provided by this utility model.

[0027] In the diagram: 1. Conveyor roller; 2. Roller; 3. Right side limiting plate; 4. Lower bending die; 5. Arc-shaped punch; 6. Upper bending die; 7. Left side limiting plate; 8. Bending cavity; 9. Side plate; 10. First fold; 11. Second fold; 12. Bending line; 13. Guide rod seat; 14. Cutting line. Detailed Implementation

[0028] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0029] Example 1

[0030] This embodiment provides a hydraulic support side guard plate bending device, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 ,and Figure 5 As shown, it includes an upper bending die 6 and a lower bending die 4 arranged vertically. The lower bending die 4 has lifting limit plates and several forward and reverse conveyor rollers 1 on both sides. For easy distinction, the limit plates can be divided into a left limit plate 7 and a right limit plate 3 according to their distribution position.

[0031] The conveyor roller 1 is used to transport one end of the sheet material to be bent to the lower bending die 4, and to transport the other end of the sheet material to be bent to the lower bending die 4 by reversing the direction of rotation. The limiting plate is used to limit one end of the sheet material to be bent when the conveyor roller 1 rotates forward, and to limit the other end of the sheet material to be bent when the conveyor roller 1 rotates in reverse.

[0032] In this embodiment, in order to achieve small arc large angle bending, meet the requirements of the bending side guard plate, and avoid problems such as poor bending accuracy, incomplete bending, and frequent replacement of bending molds caused by the inconsistency of the bending arc radius and bending angle of the bending side guard plate, the upper bending mold 6 is provided with an arc-shaped punch 5, the length of which is equal to the length of the upper bending mold 6.

[0033] To ensure smooth loading and unloading, the various conveyor rollers 1 are all of the same specification. On the same side of the lower bending die 4, the limiting plate is located between the various conveyor rollers.

[0034] Example 2

[0035] This embodiment provides a hydraulic support side guard plate bending device. The main difference from embodiment 1 is that, in this embodiment, for ease of adjustment, the bending lower die 4 includes a pair of lower modules, the spacing between the pair of lower modules is adjustable, and a bending cavity 8 is formed between the pair of lower modules.

[0036] Example 3

[0037] This embodiment provides a hydraulic support side guard plate bending device. The main difference from embodiment 1 is that, in this embodiment, in order to prevent deviation during bending, the axis of the pair of lower modules and the axis of the arc-shaped punch 5 are on the same vertical plane.

[0038] Example 4

[0039] This embodiment provides a hydraulic support side plate bending device. The main difference from Embodiment 1 is that, in this embodiment, in order to effectively support the plate to be bent during bending, the length value of the pair of lower modules is equal to the length value of the plate to be bent.

[0040] Example 5

[0041] This embodiment provides a hydraulic support side guard plate bending device. The main difference from embodiment 1 is that, in this embodiment, in order to facilitate adjustment and achieve smooth loading and unloading, the top of the conveyor roller 1 is provided with an adjustable roller 2.

[0042] Example 6

[0043] This embodiment provides a hydraulic support side guard plate bending device. The main difference from Embodiment 1 is that, in this embodiment, in order to improve bending efficiency and bending range, the length of the arc-shaped punch is greater than the length of the lower module.

[0044] Specifically, the working process of the hydraulic support side guard plate bending device provided by this utility model is as follows:

[0045] In the initial state, the upper ends of the conveyor roller 1, the lower bending die 4, the left limiting plate 7, and the right limiting plate 3 are all on the same horizontal plane. The sheet material to be bent is placed on the left conveyor roller 1, and the width direction of the sheet material to be bent is parallel to the conveying direction of the conveyor roller.

[0046] Then, the entire conveyor roller 1 is raised by 30mm, and the right limit plate 3 is raised by 50mm. At the same time, in order to ensure the accuracy of the first and second bends and to ensure that each bend is performed according to the bending line, the horizontal distance between the center of the plate thickness of the left limit plate and the center of the lower bending die, and the horizontal distance between the center of the plate thickness of the right limit plate and the center of the lower bending die are adjusted according to the bending line, and the two horizontal distance values ​​are ensured to be equal.

[0047] Then the conveyor rollers begin to rotate clockwise, conveying the material to be bent toward the right limit plate until the right end of the material to be bent is aligned with the left end of the right limit plate, at which point the conveyor rollers stop rotating.

[0048] Subsequently, the upper ends of the conveyor rollers and the right limit plate are restored to the same horizontal height as the upper end of the bending lower die. Then, the bending upper die descends at a certain speed to bend the right end of the plate to be bent to an inner angle of 90°, forming the first fold 10.

[0049] After pressure holding, the upper bending die rises to the initial point at a certain speed, while all the conveyor rollers are raised by 30mm. All the conveyor rollers rotate clockwise, conveying the sheet material to be bent past the first bending step to the right until its left end is at the right end of the left limit plate, at which point the rotation stops.

[0050] Then the left limit plate is raised by 50mm, and all the conveyor rollers start to rotate counterclockwise, conveying the material to be bent after one bend towards the left limit plate until its left end is aligned with the right end of the left limit plate, and all the conveyor rollers stop rotating.

[0051] Subsequently, the upper ends of all conveyor rollers, the left limiting plate, and the right limiting plate are restored to the same horizontal height as the upper end of the bending die. The bending die descends, bending the right end to an inner angle of 90°, forming the second folded edge 11. The side plate 9 to be cut is formed between the first folded edge 10 and the second folded edge 11. After pressure is maintained, the bending die rises to the initial point. At the same time, all conveyor rollers are raised by 30mm as a whole, and the conveyor rollers rotate clockwise, conveying the plate material after two bending processes to the right.

[0052] Specifically, such as 6. Figure 7 and Figure 8 As shown, the sheet metal to be bent is marked with bending line 12 and cutting line 14, and is equipped with guide rod seat 13. After bending, the side plate 9 is cut along the cutting line to form two separate hydraulic support side guard plates.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A hydraulic support side guard bending device, comprising a bending upper die and a bending lower die arranged in correspondence with each other, characterized in that: Each side of the bending lower die is provided with a liftable limiting plate and a plurality of reversible conveying roller beds; The conveying roller beds are used to convey one end of the plate to be bent to the bending lower die for one-time bending, and to convey the other end of the plate to be bent after one-time bending to the bending lower die by reversing; The limiting plates are used to limit one end of the plate to be bent when the conveying roller beds are in forward rotation, and to limit the other end of the plate to be bent after one-time bending when the conveying roller beds are in reverse rotation.

2. The hydraulic support side shield bending device according to claim 1, characterized in that: The bending upper die is provided with a circular-arc punch.

3. The hydraulic support side shield bending device according to claim 2, characterized in that: The bending lower die comprises a pair of lower die blocks, the spacing between the pair of lower die blocks is adjustable, and a bending cavity is formed between the pair of lower die blocks.

4. The hydraulic support side shield folding device according to claim 3, characterized in that: The axes of the pair of lower die blocks are in the same vertical plane as the axis of the circular-arc punch.

5. The hydraulic support side shield folding device according to claim 3 or 4, characterized in that: The length of the pair of lower die blocks is equal to the length of the plate to be bent.

6. The hydraulic support side shield folding device according to claim 1 or 2 or 3 or 4, characterized in that: The specifications of the plurality of conveying roller beds are the same.

7. The hydraulic support side shield folding device according to claim 6, characterized in that: The top of the conveying roller bed is provided with a roller that can be adjusted up and down.

8. The hydraulic support side shield folding device according to claim 3 or 4, characterized in that: The length of the circular-arc punch is greater than the length of the lower die blocks.

9. The hydraulic support side shield folding device according to claim 1 or 2 or 3 or 4, characterized in that: On the same side of the bending lower die, the limiting plates are located between the plurality of conveying roller beds.

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