A material stop mechanism for a bending machine

Abstract

This utility model relates to the field of bending machines and discloses a material-stopping mechanism for bending machines. It includes a support frame fixedly mounted on the bending machine and a material-stopping plate mounted on top of the support frame. A movable plate is slidably mounted on the top of the support frame. A convenient disassembly and assembly mechanism is provided between the support frame, the material-stopping plate, and the movable plate. An adjustment mechanism is provided between the support frame and the movable plate. Two guide rollers are rotatably connected to the inner walls of the front and rear sides of the support frame. The convenient disassembly and assembly mechanism includes a rack fixedly connected to the inner wall of the bottom of the support frame, a locking block disposed within the movable plate, and two insert plates fixedly connected to one side of the material-stopping plate. This utility model has the following advantages and effects: the material-stopping plate is easy to quickly disassemble and replace, avoiding excessive wear on the material-stopping plate that affects bending accuracy. Furthermore, the position of the material-stopping plate can be adjusted as needed to limit and position materials of different specifications to be bent, improving the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, and in particular to a material stop mechanism for bending machines. Background Technology

[0002] CNC bending machines use equipped molds (general or special molds) to bend cold metal sheets into workpieces of various geometric cross-sectional shapes. They are sheet metal forming machines designed for cold-rolled sheet metal processing and are widely used in sheet metal bending processes in industries such as automobiles, aircraft manufacturing, light industry, shipbuilding, containers, elevators, and railway vehicles. Bending often requires a stop device to ensure bending accuracy.

[0003] However, the baffle mechanism for bending machines in related technologies still has shortcomings. The baffle plate will wear down due to long-term use, making it inconvenient to disassemble and replace, which affects the bending accuracy. Furthermore, it is inconvenient to adjust the position of the baffle plate as needed, which makes it inconvenient to limit and position the plates of different specifications to be bent. Therefore, we propose a baffle mechanism for bending machines to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a material stop mechanism for a bending machine, which has a material stop plate that is easy to disassemble and replace, avoids excessive wear of the material stop plate that affects the bending accuracy, and allows the position of the material stop plate to be adjusted as needed to limit and position the sheet metal of different specifications to be bent, thereby improving the practicality of the device.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a material blocking mechanism for a bending machine, comprising a support frame fixedly mounted on the bending machine and a material blocking plate mounted on the top of the support frame, a movable plate slidably mounted on the top of the support frame, a convenient disassembly and assembly mechanism provided between the support frame, the material blocking plate and the movable plate, an adjustment mechanism provided between the support frame and the movable plate, two guide rollers rotatably connected to the inner walls of the front and rear sides of the support frame, the convenient disassembly and assembly mechanism comprising a rack fixedly mounted on the inner wall of the bottom of the support frame, a locking block disposed in the movable plate, and two insert plates fixedly mounted on one side of the material blocking plate, each insert plate having a slot on the side closest to each other, and the two locking blocks being movably engaged in the corresponding slots.

[0006] The present invention is further configured as follows: the convenient disassembly and assembly mechanism includes an installation groove on one side of the movable plate, two slots on one inner wall of the installation groove, a common through groove between the two slots, the baffle plate is movably placed in the installation groove, two insert plates are movably inserted into the corresponding slots, the same rotating shaft is rotatably connected to the front and rear inner walls of the through groove, a rear gear and a front gear are fixedly sleeved on the outer side of the rotating shaft, lifting plates are fixedly connected to the inner sides of the two locking blocks, racks are fixedly connected to the inner sides of the two lifting plates, racks mesh with the front gear, the rear gear cooperates with rack one, two sliding grooves are opened on the inner walls of both sides of the through groove, sliding plates are slidably sleeved in the sliding grooves, four sliding plates are fixedly connected to the two sides of the corresponding lifting plates, compression springs are fixedly connected to the inner sides of the four sliding plates, the ends of the four compression springs that are close to each other are fixedly connected to the inner walls of the corresponding sliding grooves, a rectangular opening is opened on one side of the movable plate, the rectangular opening communicates with the through groove, and the rectangular opening cooperates with rack one.

[0007] By adopting the above technical solution, when the baffle plate wears out significantly after prolonged use and needs replacement, the feed screw is rotated by handwheel, causing the moving plate and baffle plate to move to the left. Since the rectangular opening aligns with rack one, when rack one inserts into the rectangular opening and meshes with the rear gear, it will drive the rear gear to rotate clockwise. The rear gear will then drive the rotating shaft and the front gear to rotate clockwise. The front gear will cause the two racks two to move closer together, which in turn will cause the two lifting plates and the two locking blocks to move closer together and disengage from the slots, thus preventing the insert plate from locking. At this point, the baffle plate can be pulled out to the right. With two insert plates, turn the handwheel in the opposite direction to move the moving plate a certain distance to the right, so that the rack goes out of the rectangular opening. At this time, under the elastic force of the compression spring, the locking block extends outward into the slot, and the new baffle plate and the two insert plates are placed into the mounting slot and the slot respectively. At this time, the locking block is automatically compressed back into the through slot, so as not to hinder the insertion of the insert plate into the slot. When the insert plate is fully inserted into the slot, the locking block and the slot are aligned and not compressed. At this time, under the elastic force of the compression spring, the two locking blocks move away from each other and lock into the corresponding slot, so as to lock and fix the insert plate and the baffle plate.

[0008] A further feature of this invention is that a connecting plate is fixedly connected to the bottom inner wall of the support frame, and the rack is fixedly connected to one side of the connecting plate.

[0009] By adopting the above technical solution, it is convenient to support and fix rack one.

[0010] A further feature of this invention is that the adjusting mechanism includes a drive groove formed on the inner wall of the bottom of the support frame, and a feed screw rotatably connected to the inner walls on both sides of the drive groove. The feed screw is threaded with a drive plate on its outer side, and the drive plate is fixedly connected to the bottom of the movable plate.

[0011] By adopting the above technical solution, the feed screw is rotated by handwheel. When the feed screw rotates, it will drive the drive plate to move laterally. The drive plate drives the moving plate and the stop plate to move laterally, thereby adjusting the position of the stop plate. Then, the plate to be bent is placed on the worktable, with one end resting on the stop plate, thereby achieving the purpose of blocking and limiting the plate. Then, the bending operation can be performed by the bending machine.

[0012] A further feature of this invention is that a handwheel is fixedly connected to one end of the feed screw, and the drive plate is slidably sleeved in the drive groove.

[0013] By adopting the above technical solution, it is beneficial to rotate the feed screw, and at the same time, the drive plate can be guided so that it does not rotate with the feed screw.

[0014] A further feature of this invention is that the top of the support frame has two guide grooves, and guide blocks are slidably fitted in both guide grooves. Both guide blocks are fixedly connected to the bottom of the movable plate.

[0015] By adopting the above technical solution, it is convenient to guide and limit the movement of the moving plate, making its movement more stable and smooth.

[0016] A further feature of this invention is that two rotating shafts are rotatably connected to the inner walls of the front and rear sides of the support frame, and two guide rollers are respectively fixedly sleeved on the outer side of the corresponding rotating shafts.

[0017] By adopting the above technical solution, it is convenient to rotatably connect the guide roller to the inner walls of the front and rear sides of the support frame.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model uses a handwheel to rotate the feed screw. When the feed screw rotates, it will drive the drive plate to move laterally. The drive plate drives the moving plate and the stop plate to move laterally, thereby adjusting the position of the stop plate. Then, the sheet material to be bent is placed on the worktable, with one end resting on the stop plate, thereby achieving the purpose of blocking and limiting the sheet material. Then, the bending operation can be performed by the bending machine.

[0020] 2. When the baffle plate of this utility model is worn out after long-term use and needs to be replaced, the feed screw is turned by handwheel, which drives the moving plate and the baffle plate to move to the left. Since the rectangular opening is aligned with rack one, when rack one is inserted into the rectangular opening and meshes with the rear gear, it will drive the rear gear to rotate clockwise. The rear gear drives the rotating shaft and the front gear to rotate clockwise. The front gear drives the two racks two to move closer to each other. The two racks two drive the two lifting plates and the two locking blocks to move closer to each other and fall out of the locking slots, thus not locking the insert plate. At this time, the baffle plate and the two insert plates can be pulled out to the right.

[0021] 3. During installation, the handwheel is rotated in the opposite direction to move the moving plate a certain distance to the right, causing the rack to exit the rectangular opening. At this time, under the elastic force of the compression spring, the locking block extends outward into the slot, and the new baffle plate and the two insert plates are placed into the mounting groove and the slot respectively. At this time, the locking block is automatically compressed back into the groove, thus not hindering the insertion of the insert plate into the slot. When the insert plate is fully inserted into the slot, the locking block and the slot are aligned and not compressed. At this time, under the elastic force of the compression spring, the two locking blocks move away from each other and lock into the corresponding slots, thus locking and fixing the insert plate and the baffle plate. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a material stop mechanism for a bending machine proposed in this utility model;

[0024] Figure 2 This is a cross-sectional view of a material stop mechanism for a bending machine proposed in this utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of part A;

[0026] Figure 4 for Figure 2 A schematic diagram of the structure of part B.

[0027] In the diagram, 1. Support frame; 2. Moving plate; 3. Baffle plate; 4. Rotating shaft; 5. Guide roller; 6. Adjustment mechanism; 7. Convenient disassembly and assembly mechanism; 61. Drive groove; 62. Feed screw; 63. Drive plate; 64. Guide groove; 65. Guide block; 66. Handwheel; 701. Connecting plate; 702. Rack one; 703. Rectangular opening; 704. Mounting groove; 705. Slot; 706. Slot; 707. Insert plate; 708. Slot block; 709. Lifting plate; 710. Rack two; 711. Rotating shaft; 712. Rear gear; 713. Front gear; 714. Through groove; 715. Compression spring; 716. Slide plate; 717. Slide groove. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] See Figure 1 — Figure 4 This utility model provides a material blocking mechanism for a bending machine, including a support frame 1 fixedly mounted on the bending machine and a material blocking plate 3 mounted on the top of the support frame 1. A movable plate 2 is slidably mounted on the top of the support frame 1. A convenient disassembly and assembly mechanism 7 is provided between the support frame 1, the material blocking plate 3 and the movable plate 2. An adjustment mechanism 6 is provided between the support frame 1 and the movable plate 2. Two guide rollers 5 are rotatably connected to the inner walls of the front and rear sides of the support frame 1. The convenient disassembly and assembly mechanism 7 includes a rack 702 fixedly connected to the inner wall of the bottom of the support frame 1, a locking block 708 mounted in the movable plate 2, and two insert plates 707 fixedly connected to one side of the material blocking plate 3. The two insert plates 707 are provided with a slot 705 on the side that is close to each other. The two locking blocks 708 are respectively movably engaged in the corresponding slots 705.

[0030] Specifically, the convenient disassembly and assembly mechanism 7 also includes an installation groove 704 on one side of the movable plate 2. Two slots 706 are provided on the inner wall of one side of the installation groove 704. A through groove 714 is provided between the two slots 706. The baffle plate 3 is movably placed in the installation groove 704. Two insert plates 707 are movably inserted into the corresponding slots 706. The same rotating shaft 711 is rotatably connected to the inner walls of the front and rear sides of the through groove 714. A rear gear 712 and a front gear 713 are fixedly sleeved on the outer side of the rotating shaft 711. Lifting plates 709 are fixedly connected to the inner sides of the two locking blocks 708. A rack 710 is fixedly connected to the inner sides of the two lifting plates 709. The racks 710 mesh with the front gear 713, and the rear gear 712 cooperates with the rack 702.

[0031] Specifically, two sliding grooves 717 are provided on the inner walls of both sides of the through groove 714, and a sliding plate 716 is slidably fitted in each sliding groove 717. The four sliding plates 716 are respectively fixedly connected to both sides of the corresponding lifting plate 709.

[0032] Specifically, each of the four slide plates 716 has a compression spring 715 fixedly connected to its inner side, and the ends of the four compression springs 715 that are close to each other are fixedly connected to the inner wall of the corresponding slide groove 717.

[0033] Specifically, a rectangular opening 703 is provided on one side of the movable plate 2. The rectangular opening 703 is connected to the through groove 714 and cooperates with the rack 702.

[0034] Specifically, a connecting plate 701 is fixedly connected to the bottom inner wall of the support frame 1, and a rack 702 is fixedly connected to one side of the connecting plate 701.

[0035] Specifically, the adjustment mechanism 6 includes a drive groove 61 opened on the inner wall of the bottom of the support frame 1, and a feed screw 62 rotatably connected to the inner walls on both sides of the drive groove 61. The outer side of the feed screw 62 is threaded with a drive plate 63, and the drive plate 63 is fixedly connected to the bottom of the movable plate 2.

[0036] Specifically, a handwheel 66 is fixedly connected to one end of the feed screw 62, and the drive plate 63 is slidably sleeved in the drive groove 61.

[0037] Specifically, the top of the support frame 1 has two guide grooves 64, and guide blocks 65 are slidably fitted in both guide grooves 64. Both guide blocks 65 are fixedly connected to the bottom of the movable plate 2.

[0038] Specifically, two rotating shafts 4 are rotatably connected to the inner walls of the front and rear sides of the support frame 1, and two guide rollers 5 are respectively fixedly sleeved on the outer side of the corresponding rotating shafts 4.

[0039] In use, the feed screw 62 is rotated by handwheel 66. When the feed screw 62 rotates, it will drive the drive plate 63 to move laterally. The drive plate 63 drives the moving plate 2 and the stop plate 3 to move laterally, thereby adjusting the position of the stop plate 3. Then, the plate to be bent is placed on the worktable, with one end resting on the stop plate 3, thereby achieving the purpose of blocking and limiting the plate. Then, the bending operation can be performed by the bending machine. During bending, the plate will be guided by the guide roller 5, making the bending smoother.

[0040] When the baffle plate 3 becomes worn and needs replacement after prolonged use, the feed screw 62 is rotated via handwheel 66, causing the moving plate 2 and baffle plate 3 to move to the left. Since the rectangular opening 703 aligns with rack 1 702, when rack 1 702 inserts into the rectangular opening 703 and meshes with the rear gear 712, it will cause the rear gear 712 to rotate clockwise. The rear gear 712 will then cause the rotating shaft 711 and the front gear 713 to rotate clockwise. The front gear 713 will cause the two racks 2 710 to move closer together. The two racks 2 710 will then cause the two lifting plates 709 and the two locking blocks 708 to move closer together and disengage from the locking slots 705, thus preventing the insertion plate 707 from locking. At this point, the baffle plate 3 and the two insertion plates 707 can be pulled out to the right. Reverse rotation of handwheel 66 causes the movable plate 2 to move a distance to the right, causing rack 702 to exit the rectangular opening 703. At this time, under the elastic force of compression spring 715, the locking block 708 extends outward into the slot 706, placing the new baffle plate 3 and the two insert plates 707 into the mounting slot 704 and slot 706 respectively. At this time, the locking block 708 is automatically compressed back into the through slot 714, thus not hindering the insertion of the insert plate 707 into the slot 706. When the insert plate 707 is fully inserted into the slot 706, the locking block 708 is aligned with the slot 705 and is not compressed. At this time, under the elastic force of compression spring 715, the two locking blocks 708 move away from each other and lock into the corresponding slots 705, thus locking and fixing the insert plate 707 and the baffle plate 3.

Claims

1. A material-stopping mechanism for a bending machine, characterized in that, The device includes a support frame (1) fixedly mounted on a bending machine and a baffle plate (3) mounted on the top of the support frame (1). A movable plate (2) is slidably mounted on the top of the support frame (1). A convenient disassembly and assembly mechanism (7) is provided between the support frame (1), the baffle plate (3) and the movable plate (2). An adjustment mechanism (6) is provided between the support frame (1) and the movable plate (2). Two guide rollers (5) are rotatably connected to the inner walls of the front and rear sides of the support frame (1). The convenient disassembly and assembly mechanism (7) includes a rack (702) fixedly mounted on the inner wall of the bottom of the support frame (1), a locking block (708) mounted in the movable plate (2), and two insert plates (707) fixedly mounted on one side of the baffle plate (3). The two insert plates (707) are provided with a slot (705) on the side that is close to each other. The two locking blocks (708) are respectively movably engaged in the corresponding slots (705).

2. The material blocking mechanism for a bending machine according to claim 1, characterized in that: The convenient disassembly and assembly mechanism (7) also includes a mounting groove (704) on one side of the movable plate (2). Two slots (706) are provided on one inner wall of the mounting groove (704), and a through groove (714) is provided between the two slots (706). The baffle plate (3) is movably placed in the mounting groove (704), and the two insert plates (707) are movably inserted into the corresponding slots (706). The through groove (714) is located on the front and rear sides. The same rotating shaft (711) is rotatably connected to the wall. A rear gear (712) and a front gear (713) are fixedly sleeved on the outer side of the rotating shaft (711). Lifting plates (709) are fixedly connected to the inner sides of the two locking blocks (708). A rack two (710) is fixedly connected to the inner side of the two lifting plates (709). The two rack two (710) mesh with the front gear (713). The rear gear (712) cooperates with the rack one (702).

3. The material blocking mechanism for a bending machine according to claim 2, characterized in that: Two sliding grooves (717) are provided on the inner walls of both sides of the through groove (714), and a sliding plate (716) is slidably fitted in each sliding groove (717). The four sliding plates (716) are respectively fixedly connected to the two sides of the corresponding lifting plate (709).

4. The material stop mechanism for a bending machine according to claim 3, characterized in that: Each of the four slide plates (716) has a compression spring (715) fixedly connected to its inner side. The ends of the four compression springs (715) that are close to each other are fixedly connected to the inner wall of the corresponding slide groove (717).

5. A material-stopping mechanism for a bending machine according to claim 2, characterized in that: A rectangular opening (703) is provided on one side of the movable plate (2), the rectangular opening (703) is connected to the through groove (714), and the rectangular opening (703) is engaged with the rack (702).

6. The material stop mechanism for a bending machine according to claim 1, characterized in that: A connecting plate (701) is fixedly connected to the bottom inner wall of the support frame (1), and the rack (702) is fixedly connected to one side of the connecting plate (701).

7. The material stop mechanism for a bending machine according to claim 1, characterized in that: The adjustment mechanism (6) includes a drive groove (61) opened on the inner wall of the bottom of the support frame (1) and a feed screw (62) rotatably connected to the inner walls on both sides of the drive groove (61). The outer side of the feed screw (62) is threaded with a drive plate (63), and the drive plate (63) is fixedly connected to the bottom of the moving plate (2).

8. A material-stopping mechanism for a bending machine according to claim 7, characterized in that: One end of the feed screw (62) is fixedly connected to a handwheel (66), and the drive plate (63) is slidably sleeved in the drive groove (61).

9. A material-stopping mechanism for a bending machine according to claim 1, characterized in that: The top of the support frame (1) has two guide grooves (64), and guide blocks (65) are slidably fitted in both guide grooves (64). Both guide blocks (65) are fixedly connected to the bottom of the movable plate (2).

10. A material-stopping mechanism for a bending machine according to claim 1, characterized in that: Two rotating shafts (4) are rotatably connected to the inner walls of the front and rear sides of the support frame (1), and two guide rollers (5) are respectively fixedly sleeved on the outer side of the corresponding rotating shafts (4).

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