Automatic bending machine

Abstract

The application discloses an automatic bending machine, which comprises a rack, a workbench, a bending tool, a pushing piece and a blocking piece. The workbench is arranged on the rack, and a V-shaped groove is arranged on the upper end of the workbench along the left-right direction. The bending tool is movably arranged on the rack, and is located directly above the V-shaped groove. The pushing piece and the blocking piece are movably arranged on the front and back of the V-shaped groove respectively. The pushing piece is used for pushing the mesh plate on the upper end of the workbench to move backward, and the blocking piece is used for limiting the backward movement of the mesh plate. When the pushing piece pushes the mesh plate to move backward to contact the blocking piece, the bending tool moves downward. When the bending tool moves downward to contact the mesh plate, the pushing piece moves forward, and the blocking piece moves backward until the pushing piece and the blocking piece are separated from the mesh plate, and then the bending tool continues to move downward to bend the mesh plate into a V-shaped structure. The automatic bending machine has the advantages of high automation, convenience, high safety, high work efficiency, only one worker needed and small labor workload.

Description

Technical Field

[0001] This application relates to the technical field of bending equipment, and specifically relates to an automatic bending machine. Background Art

[0002] When laying cables, communication optical cables or other long and slender pipes, grid cable trays are usually used for support and protection. The existing grid cable trays are generally of a grid-like structure with a "U" shape, and the inside of the "U" shape is used for laying cables, communication optical cables or other long and slender pipes.

[0003] Currently, when processing a grid cable tray with a "U" shape, generally two workers first place the mesh plate on the bending machine and adjust the position of the mesh plate to start the first bending operation of the bending machine; then, the two workers rotate the mesh plate horizontally by 180° and readjust the position of the mesh plate to start the second bending operation of the bending machine to process the mesh plate into a grid cable tray; finally, the two workers lift the grid cable tray off the bending machine to complete the blanking.

[0004] However, the existing bending machines have the following defects: 1. Each bending machine requires two workers, which wastes manpower, and requires good action coordination ability between the two workers during operation. Otherwise, once the two workers cooperate improperly, it will not only reduce the work efficiency but also easily cause safety accidents; 2. The degree of automation is low, highly dependent on manual labor, and the workload of manual operation is large, with low work efficiency, which is not conducive to industrial processing and production. Summary of the Invention

[0005] An object of this application is to provide an automatic bending machine with high automation, easy to use, high safety, high work efficiency, less manual workload, and only requires one worker.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: an automatic bending machine, comprising a frame, a worktable, a bending cutter, a pusher, and a stopper; the worktable is disposed on the frame, and a V-shaped groove is provided on the upper end of the worktable along the left-right direction; the bending cutter is movably disposed on the frame, and the bending cutter is located directly above the V-shaped groove; the pusher and the stopper are respectively movably disposed on the front and back sides of the V-shaped groove, the pusher being used to push the mesh plate on the upper end of the worktable to move backward, and the stopper being used to restrict the backward movement of the mesh plate; when the pusher pushes the mesh plate backward to contact the stopper, the bending cutter moves downward; when the bending cutter moves downward to contact the mesh plate, the pusher moves forward, and the stopper moves backward, until the pusher and the stopper separate from the mesh plate respectively, and the bending cutter continues to move downward to bend the mesh plate into a V-shaped structure.

[0007] Preferably, the blocking component includes a blocking plate and a pressure rod; the blocking plate is slidably disposed on the frame, the distance between the upper end of the blocking plate and the upper end of the worktable is greater than or equal to the thickness of the mesh plate, and the distance between the lower end of the blocking plate and the upper end of the worktable is less than the thickness of the mesh plate; the rear end of the pressure rod is disposed on the blocking plate; after the first bending operation is completed, and when the pushing component pushes the mesh plate to contact the blocking component again, the front end of the pressure rod presses against the longitudinal rib of the mesh plate. Its advantage is that after the first bending operation is completed, when the pushing component pushes the mesh plate to continue moving backward until the rear end of the mesh plate contacts the blocking component again, it easily lifts the rear end of the mesh plate, thereby losing its positioning function and making it impossible to continue the second bending operation. However, under the action of the blocking plate and the pressure bar, when the rear end of the mesh plate comes into contact with the blocking member (i.e. the blocking plate) again, the front end of the pressure bar presses against the longitudinal rib, thereby restricting the rear end of the mesh plate from tilting upwards, so as to ensure the stability of positioning the mesh plate and provide a basis for the subsequent stable second bending operation.

[0008] Preferably, the rear end of the pressure rod is slidably mounted on the baffle plate. The advantage is that by adjusting the height of the pressure rod through vertical sliding, it ensures that the front end of the pressure rod is always pressed against the longitudinal rib when processing different types of mesh cable trays, thus enhancing versatility.

[0009] Preferably, a guide ramp is provided between the front end and the lower end of the pressure rod, and / or the front end of the pressure rod is inclined upwards. The advantage is that, since the front end of the pressure rod needs to press against the longitudinal rib, it is necessary to ensure that the lower part of the pressure rod is precisely in contact with the longitudinal rib. In actual processing, if there is a dimensional error, the longitudinal rib can easily abut against the front end of the pressure rod, preventing the mesh plate from contacting the blocking plate and thus failing to complete positioning. However, under the action of the guide ramp, and given the tendency of the longitudinal rib to deform, when the longitudinal rib abuts against the guide ramp, it can also move under the pushing force of the pusher to the bottom of the pressure rod, allowing the mesh plate to properly contact the blocking plate for positioning, thereby improving the error tolerance. Similarly, when the front end of the pressure plate is inclined upwards, it can achieve the same effect as the guide ramp; of course, by inclining the front end of the pressure rod upwards, a guide ramp can also be provided between the front end and the lower end of the pressure rod to further improve the error tolerance.

[0010] Preferably, the blocking component further includes a sliding seat, which is slidably mounted on the frame; the number of blocking plates is at least two, and the rear end of each blocking plate is provided with a connecting arm, the rear end of which is slidably mounted on the sliding seat. The advantages are: by sliding the sliding seat back and forth, the connecting arms (i.e., each blocking plate) can be driven to move back and forth; by having at least two blocking plates spaced apart, the volume of the blocking plates can be reduced while achieving the same effect. Furthermore, by adjusting the connecting arms left and right, the spacing between the blocking plates can be adjusted to accommodate the processing of different types of mesh cable trays, thus increasing versatility.

[0011] Preferably, the pushing component includes a push plate, which is slidably disposed on the frame. The distance between the upper end of the push plate and the upper end of the worktable is greater than or equal to the thickness of the mesh plate, and the distance between the lower end of the push plate and the upper end of the worktable is less than the thickness of the mesh plate. Its advantage is that by driving the push plate to slide backward, the mesh plate on the upper end of the worktable can be driven to move backward, making operation simple.

[0012] Preferably, the pushing component further includes a guide post, a slider, and a pushing cylinder; the guide post is fixed to the frame in the front-to-back direction, the slider has a sliding hole extending through it, and the sliding hole is slidably connected to the guide post; the pushing cylinder is fixed to the frame and is used to push the slider to slide; a connecting plate extends forward from the push plate, and the connecting plate is fixed to the upper end of the slider. Its advantages are: by controlling the extension and retraction of the pushing cylinder, the push plate can be driven to slide back and forth, making operation simple; the sliding cooperation between the guide post and the sliding hole can improve the movement accuracy of the push plate.

[0013] Preferably, the automatic bending machine further includes a positioning component, which is disposed at the left and / or right end of the frame, and is located in front of the V-groove. The distance between the upper end of the positioning component and the upper end of the worktable is greater than or equal to the thickness of the mesh plate, and the distance between the lower end of the positioning component and the upper end of the worktable is less than the thickness of the mesh plate. The advantage is that, with the positioning component, when the worker places the mesh plate on the worktable, one end of the mesh plate is pressed against the positioning component, thereby achieving left-right positioning of the mesh plate. This prevents the worker from carelessly placing the left end of the mesh plate to the left of the bending cutter, or the right end of the mesh plate to the right of the bending cutter. Furthermore, with the pressure bar, it is even more necessary to position the mesh plate in the left-right direction to prevent the front end of the pressure bar from abutting against the bent transverse rib. In this case, positioning with the positioning component avoids the need for manual misalignment of the pressure bar and the transverse rib, and the operation is simpler.

[0014] Preferably, the automatic bending machine further includes a clamping component, which includes a support plate, a clamping bolt, and a C-shaped clamping arm. The support plate is fixed to the frame or the worktable. The clamping bolt is threaded to the lower end of the clamping arm, and a clamping area is formed between the clamping bolt and the upper end of the clamping arm for clamping the positioning component on the support plate. Its advantages are: the positioning component can be clamped and fixed to the support plate (i.e., the worktable or the frame) through the clamping area, making operation simple; at the same time, when the clamping bolt is loosened, the position of the positioning component on the support plate can be adjusted so that when one end of the mesh plate contacts the positioning component, the other end of the mesh plate will not extend beyond the outside of the bending cutter, and the front end of the pressure rod is offset from the transverse rib.

[0015] Preferably, a V-shaped template is embedded in the V-groove, and the front and rear sides of the V-shaped template have horizontally outward extensions, the upper end face of which is flush with the upper end face of the worktable. The advantage is that when the mesh plate directly contacts the V-groove, once the wear of the V-groove exceeds the standard value, the entire groove needs to be replaced, which is costly; however, with the embedded V-shaped template, when wear occurs, only the V-shaped template needs to be replaced, resulting in lower cost.

[0016] Preferably, the workbench includes a table body, a first support member, and a second support member; the table body is a long strip structure, detachably mounted on the frame, and the V-shaped groove is formed at the upper end of the table body; the first support member and the second support member are fixed to the frame, distributed on the front and rear sides of the table body, and the upper end faces of the first support member, the second support member, and the table body are flush with each other. Its advantages are: during bending, the downward pressure of the bending tool acts on the V-shaped groove through the mesh plate, while other areas on the workbench are mainly used to support the mesh plate. Therefore, when the table body is mounted on the frame, it can effectively provide support during bending; when the first support member and the second support member are respectively arranged on the front and rear sides of the table body, they can both assist the table body in supporting the mesh plate and reduce the overall weight. In addition, since the platform is detachable, it is convenient to replace the platform separately, and it is also convenient to disassemble the platform to replace the V-shaped template in the V-groove.

[0017] Preferably, the bending tool includes a tool holder and at least two tool bodies. The tool holder is slidably connected to the frame. The tool bodies are detachably disposed at the lower end of the tool holder, and the at least two tool bodies are sequentially connected in the left-right direction. Its advantages are: by controlling the up-and-down sliding of the tool holder, the tool bodies can be driven to move up and down to achieve the bending operation. Furthermore, since there are at least two tool bodies, the overall length in the left-right direction can be adjusted by splicing them together as needed; simultaneously, it reduces the processing difficulty of a single tool body and allows for individual replacement after damage, resulting in lower costs.

[0018] Preferably, a bent portion is formed by bending the lower end of the tool body, and a relief groove for accommodating the longitudinal ribs on the mesh plate is provided on the outer side of the bent portion. The advantages are as follows: The bent portion can play a buffering role, preventing damage to the tool body and the workbench due to excessive pressure during bending. In addition, since the mesh plate is taken out from the automatic welding equipment, cut, and then placed on the workbench, the longitudinal ribs on the mesh plate are always above the transverse ribs. Therefore, without the relief groove, the outer side of the bent portion will contact the longitudinal ribs, directly applying pressure to the longitudinal ribs, and easily flattening the joint between the longitudinal ribs and the transverse ribs. Although it has little impact on the normal use of the finished grid cable tray, it has a great impact on the appearance of the finished grid cable tray, resulting in a lack of market competitiveness during sales. After setting the relief groove, during the bending process, there is just enough space in the relief groove to accommodate the longitudinal ribs, thus avoiding flattening the joint between the transverse ribs and the longitudinal ribs.

[0019] Compared with the prior art, the beneficial effects of the present application are as follows: (1) During the bending operation, the mesh plate on the workbench is pushed backward by the pushing member until the rear end of the mesh plate contacts the blocking member. At this time, the portion of the mesh plate that needs to be bent is exactly located directly above the V-shaped groove (i.e., directly below the bending tool), and the positioning of the mesh plate can be automatically achieved. Then, the bending tool is driven downward until the lower end of the bending tool contacts the mesh plate, and the mesh plate can be pressed tightly against the upper end of the workbench to prevent the mesh plate from shifting on the workbench before bending starts. Next, the blocking member is driven backward to separate from the mesh plate, and the pushing member is driven forward to separate from the mesh plate to avoid mutual interference between the pushing member and the blocking member and the mesh plate during the bending process. Finally, the bending tool is driven to continue moving downward until the bending tool presses the mesh plate into the V-shaped groove to fold the mesh plate into a V-shaped structure, and then the bending tool is driven upward to the initial position. The entire above operation process has a high degree of automation. Only one worker needs to first place the mesh plate on the workbench and then automatically repeat the above steps twice to automatically bend the mesh plate into a "U" - shaped grid cable tray structure. Finally, the worker can take down the grid cable tray. Compared with the traditional bending machine, this automatic bending machine has a high degree of automation, is easy to use, only requires one worker, has high safety, high work efficiency, and less manual workload.

[0020] (2) After the first bending operation is completed, when the pusher pushes the mesh plate to continue moving backward until the rear end of the mesh plate contacts the blocking member again, it is easy to push the rear end of the mesh plate up, thereby losing the positioning function of the mesh plate, and thus making it impossible to continue the second bending operation; however, when the blocking member includes the blocking plate and the pressure rod, when the rear end of the mesh plate contacts the blocking member (i.e. the blocking plate) again, the front end of the pressure rod just presses against the longitudinal rib, thereby restricting the rear end of the mesh plate from tilting upward, so as to ensure the stability of positioning the mesh plate and provide a basis for the subsequent stable second bending operation. Attached Figure Description

[0021] Figure 1 A perspective view of an automatic bending machine provided in this application.

[0022] Figure 2 Provided for this application Figure 1 A magnified view of a section at point I.

[0023] Figure 3 Provided for this application Figure 1 A magnified view of section II in the middle.

[0024] Figure 4 Provided for this application Figure 1 A 3D view of an automatic bending machine from a rear-view perspective.

[0025] Figure 5 Provided for this application Figure 4 A magnified view of section III in the middle.

[0026] Figure 6 Provided for this application Figure 4 Enlarged view of a section at point IV

[0027] Figure 7 Provided for this application Figure 4 Enlarged view of the middle V section

[0028] Figure 8 Provided for this application Figure 4 Enlarged view of the middle blocking component.

[0029] Figure 9 Provided for this application Figure 1 Enlarged view of the push component.

[0030] Figure 10 Provided for this application Figure 1 Exploded view of the central workbench.

[0031] Figure 11 Provided for this application Figure 10 A magnified view of section VI in the middle.

[0032] Figure 12 Provided for this application Figure 1 Exploded view of a bending tool.

[0033] Figure 13 Provided for this application Figure 1 A cross-sectional view of an automatic bending machine.

[0034] Figure 14 Provided for this application Figure 13 A magnified view of section VII in the middle.

[0035] Figure 15 Provided for this application Figure 13 A magnified view of section VIII in the middle.

[0036] Figure 16 Provided for this application Figure 13 A magnified view of section IX in the middle.

[0037] Figure 17 Provided for this application Figure 13 A magnified view of the area at point X.

[0038] In the diagram: 1. Frame; 11. Limiting strip; 2. Worktable; 21. Table body; 211. V-groove; 212. Protruding strip; 22. First support member; 221. Mounting plate; 23. Second support member; 231. Mounting part; 24. First locking member; 241. First fixing plate; 242. First bolt; 243. First hand-tightening screw; 244. Washer; 25. Second locking member; 251. Second fixing plate; 252. Second bolt; 253. Second hand-tightening screw; 3. Bending tool; 31. Tool holder; 32. Tool body; 321. Bending part; 322. Relief groove; 323. Snap-fit ​​groove; 33. Hydraulic cylinder; 34. Third locking member; 341. First clamping plate; 342. Second... Clamping plate; 343, Third clamping plate; 344, Snap-fit ​​part; 4, Pushing part; 41, Push plate; 411, Connecting plate; 412, Rib plate; 42, Guide post; 43, Slider; 431, Sliding hole; 44, Pushing cylinder; 5, Blocking part; 51, Blocking plate; 510, Connecting arm; 511, Long strip hole; 52, Pressure rod; 521, Guide slope; 522, Mounting block; 523, Mounting hole; 53, Sliding seat; 54, Slide plate; 55, Guide groove; 56, Guide rail; 57, Drive cylinder; 6, Positioning part; 7, Clamping part; 71, Clamping arm; 72, Clamping bolt; 73, Support plate; 8, V-shaped template; 81, Extension part; 100, Mesh plate; 101, Transverse rib; 102, Longitudinal rib. Detailed Implementation

[0039] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0040] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0041] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0042] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0043] Reference Figure 1 , Figure 4 as well as Figure 13, an embodiment of the present application provides an automatic bending machine, including a frame 1, a workbench 2, a bending tool 3, a pushing member 4, and a blocking member 5; the workbench 2 is arranged on the frame 1, and a V-shaped groove 211 is provided at the upper end of the workbench 2 along the left-right direction; the bending tool 3 is arranged on the frame 1 so as to be movable up and down, and the bending tool 3 is located directly above the V-shaped groove 211; the pushing member 4 and the blocking member 5 are respectively arranged on the front and rear sides of the V-shaped groove 211 so as to be movable back and forth, the pushing member 4 is used to push the mesh plate 100 on the upper end of the workbench 2 backward, and the blocking member 5 is used to limit the backward movement of the mesh plate 100; when the pushing member 4 pushes the mesh plate 100 backward until it contacts the blocking member 5, the bending tool 3 moves downward; when the bending tool 3 moves downward until it contacts the mesh plate 100, the pushing member 4 moves forward, and the blocking member 5 moves backward, until the pushing member 4 and the blocking member 5 are separated from the mesh plate 100 respectively, and then the bending tool 3 continues to move downward to bend the mesh plate 100 into a V-shaped structure. During the bending operation, the mesh plate 100 on the workbench 2 is pushed backward by the pushing member 4 until the rear end of the mesh plate 100 contacts the blocking member 5, and the part of the mesh plate 100 that needs to be bent is exactly located directly above the V-shaped groove 211 (that is, directly below the bending tool 3), so that the positioning of the mesh plate 100 can be automatically realized; then, the bending tool 3 is driven to move downward until the lower end of the bending tool 3 contacts the mesh plate 100, and the mesh plate 100 can be pressed tightly on the upper end of the workbench 2 to prevent the mesh plate 100 from displacing on the workbench 2 before the bending starts; then, the blocking member 5 is driven to move backward until it is separated from the mesh plate 100, and the pushing member 4 is driven to move forward until it is separated from the mesh plate 100, so as to prevent mutual interference between the pushing member 4 and the blocking member 5 and the mesh plate 100 during the bending process; finally, the bending tool 3 is driven to continue to move downward until the bending tool 3 presses the mesh plate 100 into the V-shaped groove 211 to bend the mesh plate 100 into a V-shaped structure, and then the bending tool 3 is driven to move upward to the initial position. The above entire operation process has a high degree of automation. Only one worker needs to first place the mesh plate 100 on the workbench 2, and then automatically repeat the above steps twice, and the mesh plate 100 can be automatically bent into a "U"-shaped grid bridge, and finally the worker can take down the grid bridge; compared with the traditional bending machine, this automatic bending machine has a high degree of automation, is easy to use, only requires one worker, has high safety, high work efficiency, and less manual workload. It should be noted that the included angle of the V-shaped groove 211 can be determined according to the model of the grid bridge to be processed. For example, when processing a "U"-shaped grid bridge, the included angle of the V-shaped groove 211 is 90°.

[0044] Refer to Figure 6 , Figure 7 and Figure 8In some embodiments of this application, the blocking member 5 includes a blocking plate 51 and a pressure rod 52; the blocking plate 51 is slidably disposed on the frame 1, the distance between the upper end of the blocking plate 51 and the upper end of the worktable 2 is greater than or equal to the thickness of the mesh plate 100, and the distance between the lower end of the blocking plate 51 and the upper end of the worktable 2 is less than the thickness of the mesh plate 100; the rear end of the pressure rod 52 is disposed on the blocking plate 51; after the first bending operation is completed, and when the pusher 4 pushes the mesh plate 100 to contact the blocking member 5 again, the front end of the pressure rod 52 presses against the longitudinal rib 102 of the mesh plate 100. Figure 15 As shown, after the first bending operation is completed, when the pusher 4 pushes the mesh plate 100 to continue moving backward until the rear end of the mesh plate 100 contacts the blocking member 5 (i.e., the blocking plate 51) again, the side of the transverse rib 101 and the blocking plate 51 (as shown) Figure 15 The static friction force (as shown) is much smaller than that between the end of the transverse rib 101 and the push plate 41 (as shown). Figure 14 The static friction (as shown) makes the rear end of the mesh plate 100 easily lifted up, thus losing its positioning function and making it impossible to continue the second bending operation. In addition, when the included angle of the V-groove 211 is greater than 90°, after the first bend, the included angle between the folded part of the rear end of the mesh plate 100 and the upper end surface of the worktable 2 is less than 90°. At this time, the front end of the baffle plate 51 must be set as an inclined structure to ensure that the baffle plate 51 fully contacts the rear end of the mesh plate 100. In this case, pushing the mesh plate 100 backward from the front end makes it easier for the mesh plate 100 to slide backward and upward along the front end of the baffle plate 51 (i.e., tilt up), which will also lose its positioning function. However, under the action of the baffle plate 51 and the pressure rod 52, when the rear end of the mesh plate 100 contacts the baffle 5 (i.e., the baffle plate 51) again, the front end of the pressure rod 52 presses against the longitudinal rib 102, thus preventing the rear end of the mesh plate 100 from tilting upwards. This ensures the stability of the mesh plate 100's positioning and provides a basis for the subsequent stable second bending operation. It should be noted that the lower end of the baffle plate 51 preferably extends below the upper surface of the worktable 2. In this case, the distance between the lower end of the baffle plate 51 and the upper end of the worktable 2 is negative, i.e., less than the thickness of the mesh plate 100.

[0045] Reference Figure 8 as well as Figure 15 In some embodiments of this application, the rear end of the pressure rod 52 is slidably mounted on the baffle plate 51. Adjusting the height of the pressure rod 52 by sliding it up and down ensures that the front end of the pressure rod 52 is always pressed against the longitudinal rib 102 when processing different types of mesh cable trays, thus improving versatility. It should be noted that this application does not limit the up-and-down sliding installation method of the pressure rod 52; the following is only one installation method for reference: Figure 8As shown, the rear end of the pressure rod 52 is connected to a mounting block 522. The mounting block 522 has two mounting holes 523. The baffle plate 51 has an elongated hole 511. After passing the bolt through the mounting holes 523 and the elongated hole 511 and tightening it with a nut, the mounting block 522 (i.e., the pressure rod 52) can be restricted from sliding up and down. After loosening the nut, the height of the pressure rod 52 can be adjusted by sliding it up and down.

[0046] Reference Figure 6 , Figure 8 as well as Figure 15 In some embodiments of this application, a guide ramp 521 is provided between the front end and the lower end of the pressure rod 52, and / or the front end of the pressure rod 52 is inclined upward. Figure 15 As shown, since the front end of the pressure rod 52 needs to be pressed against the longitudinal rib 102, it is necessary to ensure that the lower part of the pressure rod 52 is in contact with the longitudinal rib 102. In actual processing, if there is a dimensional error, the longitudinal rib 102 is likely to abut against the front end of the pressure rod 52, making it impossible for the mesh plate 100 to contact the blocking plate 51, thus preventing positioning. However, under the action of the guide slope 521, and because the longitudinal rib 102 is prone to deformation, when the longitudinal rib 102 abuts against the guide slope 521, the longitudinal rib 102 can also move to the bottom of the pressure rod 52 under the pushing force of the pusher 4, so that the mesh plate 100 can normally contact the blocking plate 51 to complete the positioning. This can improve the fault tolerance rate and ensure the stable operation of subsequent automatic operations. Similarly, when the front end of the pressure plate is tilted upward, it can also play the same role as the guide slope 521. Of course, when the front end of the pressure rod 52 is tilted upward, a guide slope 521 can also be set between the front end and the lower end of the pressure rod 52 to further improve the fault tolerance.

[0047] Reference Figure 7 as well as Figure 8In some embodiments of this application, the blocking member 5 further includes a sliding seat 53, which is slidably disposed on the frame 1. There are at least two blocking plates 51, with a connecting arm 510 extending rearward from the rear end of each blocking plate 51. The rear end of the connecting arm 510 is slidably disposed on the sliding seat 53. By sliding the sliding seat 53 back and forth, the connecting arms 510 (i.e., the blocking plates 51) can be driven to move back and forth. By having at least two blocking plates 51 spaced apart, the volume of the blocking plates 51 can be reduced while achieving the same effect. Furthermore, by adjusting the connecting arms 510 left and right, the spacing between the blocking plates 51 can be adjusted to accommodate the processing of different types of mesh cable trays, resulting in greater versatility. It should be noted that the sliding seat 53's slidable installation method is existing technology. For example, a guide groove 55 is provided on each of the left and right sides of the frame 1, and the left and right ends of the sliding seat 53 are slidably connected to the two guide grooves 55, respectively. The sliding seat 53 is then driven to slide back and forth by a drive cylinder 57 mounted on the frame 1. Similarly, the sliding installation method between the connecting arm 510 and the sliding seat 53 is also existing technology. For example, guide rails 56 are set on the upper end of the sliding seat 53 along the left and right sides, and a slide plate 54 is installed at the rear end of the connecting arm 510. The slide plate 54 is slidably connected to the guide rails 56. The slide plate 54 (i.e., the connecting arm 510) can be automatically driven to slide left and right by installing a cylinder, or the slide plate 54 (i.e., the connecting arm 510) can be locked on the sliding seat 53 by screws, and the slide plate 54 can be manually driven to slide left and right by loosening the screws.

[0048] Reference Figure 3 as well as Figure 9 In some embodiments of this application, the pusher 4 includes a push plate 41, which is slidably mounted on the frame 1. The distance between the upper end of the push plate 41 and the upper end of the worktable 2 is greater than or equal to the thickness of the mesh plate 100, and the distance between the lower end of the push plate 41 and the upper end of the worktable 2 is less than the thickness of the mesh plate 100. By driving the push plate 41 to slide backward, the mesh plate 100 at the upper end of the worktable 2 can be driven to move backward, making operation simple. It should be noted that this application does not limit the sliding installation method of the push plate 41. For example, as Figure 9As shown, the pusher 4 also includes a guide post 42, a slider 43, and a push cylinder 44. The guide post 42 is fixed to the frame 1 in the front-to-back direction. The slider 43 has a sliding hole 431 extending through it, and the sliding hole 431 is slidably connected to the guide post 42. The push cylinder 44 is fixed to the frame 1 and is used to push the slider 43 to slide. A connecting plate 411 extends forward on the push plate 41 and is fixed to the upper end of the slider 43. By controlling the extension and retraction of the push cylinder 44, the push plate 41 can be driven to slide back and forth, making operation simple. The sliding cooperation between the guide post 42 and the sliding hole 431 can improve the motion accuracy of the push plate 41. It should be noted that the lower end of the push plate 41 preferably extends below the upper surface of the worktable 2. At this time, the distance between the lower end of the push plate 41 and the upper end of the worktable 2 is equivalent to a negative value, that is, less than the thickness of the mesh plate 100. In addition, a stiffening plate 412 can also be provided between the push plate 41 and the connecting plate 411 to improve the overall strength.

[0049] Reference Figure 3 In some embodiments of this application, the automatic bending machine further includes a positioning element 6, which is disposed at the left or right end of the frame 1 (or one positioning element 6 can be disposed at each of the left and right ends of the frame 1). The positioning element 6 is located on the front side of the V-groove 211. The distance between the upper end of the positioning element 6 and the upper end of the worktable 2 is greater than or equal to the thickness of the wire mesh 100, and the distance between the lower end of the positioning element 6 and the upper end of the worktable 2 is less than the thickness of the wire mesh 100. When the positioning element 6 is provided, the worker places the wire mesh 100 on the worktable 2 while pressing one end of the wire mesh 100 against the positioning element 6, thereby achieving the positioning of the wire mesh 100 in the left and right directions. This prevents the worker from carelessly placing the left end of the wire mesh 100 to the left of the bending cutter 3 or the right end of the wire mesh 100 to the right of the bending cutter 3. Furthermore, with the pressure bar 52 in place, it is necessary to position the mesh plate 100 in the left-right direction to prevent the front end of the pressure bar 52 from abutting against the bent transverse rib 101. In this case, positioning with the positioning element 6 avoids the need for manual misalignment of the pressure bar 52 and the transverse rib 101, and the operation is simpler. It should be noted that the lower end of the positioning element 6 preferably extends below the upper surface of the worktable 2. In this case, the distance between the lower end of the positioning element 6 and the upper surface of the worktable 2 is equivalent to a negative value, i.e., less than the thickness of the mesh plate 100.

[0050] Reference Figure 3 , Figure 10 as well as Figure 11In some embodiments of this application, the automatic bending machine further includes a clamping component 7, which includes a support plate 73, a clamping bolt 72, and a C-shaped clamping arm 71. The support plate 73 is fixed to the frame 1 or the workbench 2. The clamping bolt 72 is threaded to the lower end of the clamping arm 71, and a clamping area for clamping the positioning component 6 onto the support plate 73 is formed between the clamping bolt 72 and the upper end of the clamping arm 71. The positioning component 6 can be clamped and fixed onto the support plate 73 (i.e., the workbench 2 or the frame 1) through the clamping area, which is easy to operate. At the same time, when the clamping bolt 72 is loosened, the position of the positioning component 6 on the support plate 73 can be adjusted so that when one end of the mesh plate 100 contacts the positioning component 6, the other end of the mesh plate 100 will not extend beyond the outside of the bending cutter 3, and the front end of the pressure rod 52 is offset from the transverse rib 101.

[0051] Reference Figure 1 as well as Figure 5 In some embodiments of this application, a V-shaped template 8 is embedded in the V-groove 211. Extensions 81 extend horizontally outward from both the front and rear sides of the V-shaped template 8, with the upper surface of the extensions 81 flush with the upper surface of the worktable 2. When the mesh plate 100 directly contacts the V-groove 211, if the wear of the V-groove 211 exceeds the standard value, the entire groove needs to be replaced, resulting in high costs. However, with the embedded V-shaped template 8, when wear occurs, only the V-shaped template 8 needs to be replaced, resulting in lower costs. It should be noted that the V-shaped template 8 can be embedded in the V-groove 211 by welding, screw fixing, or other methods.

[0052] Reference Figure 2 , Figure 6 as well as Figure 10In some embodiments of this application, the workbench 2 includes a table body 21, a first support member 22, and a second support member 23; the table body 21 is a long strip structure, and the table body 21 is detachably mounted on the frame 1, with a V-shaped groove 211 formed at the upper end of the table body 21; the first support member 22 and the second support member 23 are fixed to the frame 1, and the first support member 22 and the second support member 23 are distributed on the front and rear sides of the table body 21, and the upper end surface of the first support member 22, the upper end surface of the second support member 23, and the upper end surface of the table body 21 are flush with each other. During the bending process, the downward pressure of the bending tool 3 is applied to the V-groove 211 through the mesh plate 100, while other areas on the worktable 2 are mainly used to support the mesh plate 100. Therefore, when the table body 21 is installed on the frame 1, it can effectively provide support during bending. When the first support member 22 and the second support member 23 are respectively arranged on the front and rear sides of the table body 21, they can both assist the table body 21 in supporting the mesh plate 100 and reduce the overall weight. In addition, since the table body 21 is detachable, it is convenient to replace the table body 21 individually and to disassemble the table body 21 to replace the V-shaped template 8 in the V-groove 211. It should be noted that the first support member 22 and the second support member 23 can be either rod-shaped or plate-shaped structures. Furthermore, this application does not limit the detachable installation method of the table body 21, for example, as Figure 4 and Figure 5 As shown, a limiting strip 11 is provided on the upper end of the frame 1 along the left and right direction. The platform 21 is placed directly on the upper end of the frame 1 and clamped by the first locking member 24. The first locking member 24 includes a first fixing plate 241, a first bolt 242, and a first hand-tightening screw 243. The first fixing plate 241 is fixed to the rear side of the frame 1 by the first bolt 242. The first hand-tightening screw 243 is threaded onto the first fixing plate 241, and the threaded end of the first hand-tightening screw 243 directly or through a washer 244 abuts against the platform 21, thereby locking the platform 21 onto the frame 1. The platform 21 can be removed after loosening the first hand-tightening screw 243. Furthermore, this application does not limit the installation method of the first support member 22 and the second support member 23. For example, when it is a plate-like structure, such as... Figure 2 As shown, the first support member 22 is a plate-shaped structure, and a mounting plate 221 extends downward from the rear end of the first support member 22. The mounting plate 221 is locked onto the frame 1 by the second locking member 25; Figure 2As shown, the second locking member 25 includes a second fixing plate 251, a second bolt 252, and a second hand-tightening screw 253. The second fixing plate 251 is fixed to the front side of the frame 1 by the second bolt 252; the second hand-tightening screw 253 is threadedly connected to the second fixing plate 251, and the threaded end of the second hand-tightening screw 253 abuts the mounting plate 221 against the limiting strip 11; to reduce the height of the limiting strip 11, a protruding rib 212 protrudes forward from the upper front end of the platform 21. The protruding rib 212 is located directly above the limiting strip 11, and the front end face of the protruding rib 212 is aligned with the front end face of the limiting strip 11. For example, when it is a rod-shaped structure, such as... Figure 4 as well as Figure 6 As shown, the second support member 23 is a rod-shaped structure, and the lower end of the second support member 23 is provided with a mounting part 231, which is fixed to the frame 1 by screws.

[0053] Reference Figure 12 In some embodiments of this application, the bending tool 3 includes a tool holder 31 and at least two tool bodies 32. The tool holder 31 is slidably connected to the frame 1. The tool bodies 32 are detachably disposed at the lower end of the tool holder 31, and at least two tool bodies 32 are sequentially connected in the left-right direction. By controlling the up-and-down sliding of the tool holder 31, the tool bodies 32 can be driven to move up and down to achieve the bending operation. In addition, since there are at least two tool bodies 32, the overall length in the left-right direction can be adjusted by splicing them together as needed. At the same time, it can reduce the processing difficulty of a single tool body 32 and can be replaced individually after damage, resulting in lower costs. It should be noted that this application does not limit the up-and-down sliding installation method of the tool holder 31. For example, as Figure 4 As shown, the tool holder 31 is slidably connected to the frame 1 via a slide groove, and is driven to slide up and down by a hydraulic cylinder 33. Furthermore, this application does not limit the detachable installation method of the tool body 32. For example, the tool body 32 can be detachably connected to the lower end of the tool holder 31 via a third locking member 34, such as... Figure 17 As shown, the third locking member 34 includes a first clamping plate 341, a second clamping plate 342, and a third clamping plate 343. The first clamping plate 341 is fixed to the lower end of the tool holder 31 by screws. The third clamping plate 343 is fixed to the rear side of the first clamping plate 341 by screws. The second clamping plate 342 is fixed to the front side of the second clamping plate 342 by screws. A clamping area for clamping the upper end of the tool body 32 is formed between the second clamping plate 342 and the third clamping plate 343. At the same time, the lower end of the second clamping plate 342 is provided with a snap-fit ​​part 344, and the upper end of the tool body 32 is provided with a snap-fit ​​groove 323. The snap-fit ​​part 344 snaps into the snap-fit ​​groove 323 to prevent the tool body 32 from falling off.

[0054] Reference Figure 16In some embodiments of this application, the lower end of the tool body 32 is bent to form a bent portion 321, and the outer side of the bent portion 321 is provided with a relief groove 322 for accommodating the longitudinal ribs 102 on the mesh plate 100. The bent portion can act as a buffer to prevent damage to the tool body 32 and the worktable 2 due to excessive pressure during bending. In addition, since the mesh plate 100 is taken out of the automatic welding equipment and then cut, until it is placed on the worktable 2, the longitudinal ribs 102 on the mesh plate 100 are always above the transverse ribs 101. Therefore, without the relief groove 322, the outer side of the bent portion will contact the longitudinal ribs 102, thereby directly applying pressure to the longitudinal ribs 102. This can easily flatten the part where the longitudinal ribs 102 and the transverse ribs 101 meet. Although this has little impact on the normal use of the finished mesh cable tray, it has a great impact on the appearance of the finished mesh cable tray, resulting in a lack of market competitiveness during sales. After setting the relief groove 322, during the bending process, the relief groove 322 has just enough space to accommodate the longitudinal rib 102, thereby avoiding the flattening of the part where the transverse rib 101 and the longitudinal rib 102 are joined.

[0055] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. An automatic bending machine, characterized in that, The device includes a frame, a worktable, a bending cutter, a pusher, and a stopper. The worktable is mounted on the frame, and a V-shaped groove is provided on the upper end of the worktable along the left-right direction. The bending cutter is movably mounted on the frame and is located directly above the V-shaped groove. The pusher and the stopper are movably mounted on the front and back sides of the V-shaped groove, respectively. The pusher is used to push the mesh plate on the upper end of the worktable to move backward, and the stopper is used to restrict the backward movement of the mesh plate. When the pusher pushes the mesh plate backward to contact the blocking member, the bending cutter moves downward; when the bending cutter moves downward to contact the mesh plate, the pusher moves forward and the blocking member moves backward, until the pusher and the blocking member separate from the mesh plate respectively, the bending cutter continues to move downward to bend the mesh plate into a V-shaped structure. The blocking component includes a blocking plate and a pressure rod; the blocking plate is slidably disposed on the frame, the distance between the upper end of the blocking plate and the upper end of the worktable is greater than or equal to the thickness of the mesh plate, and the distance between the lower end of the blocking plate and the upper end of the worktable is less than the thickness of the mesh plate; the rear end of the pressure rod is disposed on the blocking plate; after the first bending operation is completed, and when the pushing component pushes the mesh plate to contact the blocking component again, the front end of the pressure rod presses against the longitudinal rib of the mesh plate.

2. The automatic bending machine as described in claim 1, characterized in that, The rear end of the pressure rod is slidably mounted on the blocking plate.

3. The automatic bending machine as described in claim 1, characterized in that, A guide ramp is provided between the front end and the lower end of the pressure rod, and / or the front end of the pressure rod is inclined upward.

4. The automatic bending machine as described in claim 1, characterized in that, The blocking component also includes a sliding seat, which is slidably disposed on the frame; the number of blocking plates is at least two, and the rear end of the blocking plate is provided with a connecting arm, the rear end of the connecting arm being slidably disposed on the sliding seat.

5. The automatic bending machine as described in claim 1, characterized in that, The pusher includes a push plate, which is slidably disposed on the frame. The distance between the upper end of the push plate and the upper end of the worktable is greater than or equal to the thickness of the mesh plate, and the distance between the lower end of the push plate and the upper end of the worktable is less than the thickness of the mesh plate.

6. The automatic bending machine as described in claim 5, characterized in that, The pusher also includes a guide post, a slider, and a push cylinder; the guide post is fixed to the frame in the front-to-back direction, the slider has a sliding hole through it in the front and back, and the sliding hole is slidably connected to the guide post in the front and back direction; the push cylinder is fixed to the frame and is used to push the slider to slide; a connecting plate extends forward on the push plate and is fixed to the upper end of the slider.

7. The automatic bending machine according to any one of claims 1-6, characterized in that, The automatic bending machine also includes a positioning component, which is disposed at the left end and / or right end of the frame and is located in front of the V-groove; the distance between the upper end of the positioning component and the upper end of the worktable is greater than or equal to the thickness of the mesh plate, and the distance between the lower end of the positioning component and the upper end of the worktable is less than the thickness of the mesh plate.

8. The automatic bending machine as described in claim 7, characterized in that, The automatic bending machine also includes a clamping component, which includes a support plate, a clamping bolt, and a C-shaped clamping arm. The support plate is fixed to the frame or the worktable. The clamping bolt is threaded to the lower end of the clamping arm, and a clamping area is formed between the clamping bolt and the upper end of the clamping arm for clamping the positioning element on the support plate.

9. The automatic bending machine as described in any one of claims 1-6, characterized in that, The V-shaped groove is embedded with a V-shaped template, and the front and rear sides of the V-shaped template have horizontally outward extensions, the upper end face of which is flush with the upper end face of the workbench. The workbench includes a table body, a first support member, and a second support member; the table body has a strip-shaped structure and is detachably mounted on the frame, with a V-shaped groove formed at the upper end of the table body; the first support member and the second support member are fixed to the frame, and are distributed on the front and rear sides of the table body, with the upper end surfaces of the first support member, the second support member, and the table body being flush with each other; The bending tool includes a tool holder and at least two tool bodies. The tool holder is slidably connected to the frame. The tool bodies are detachably disposed at the lower end of the tool holder, and at least two tool bodies are sequentially connected in the left-right direction. The lower end of the cutter body is bent to form a bent portion, and the outer side of the bent portion is provided with a relief groove for accommodating the longitudinal ribs on the mesh plate.

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