A metal sheet bending device and bending method

Abstract

This invention discloses a metal bending sheet device and bending method. The metal bending sheet device includes a truss, a pressure plate, a power mechanism, and a support plate. A platform is provided on the truss, and the platform has a bending groove. The pressure plate is distributed above the platform, and a pressure block is provided on the pressure plate. The pressure block and the bending groove form an adjustable gap for a movable metal plate. A slag removal mechanism is installed on the pressure plate. The power mechanism can drive the pressure plate to cooperate with the bending groove to bend the metal. The power mechanism includes a telescopic source, and a movable plate is connected to the movable end of the telescopic source. The movable plate is connected to the pressure plate through a connecting component. The support plate is located on the front side of the truss and is connected to the truss through an adjustment mechanism. In this invention, the support plate can move synchronously with the raised part of the front side of the metal plate to lift it, so that the raised part of the front side of the metal plate being bent can be blocked by the support plate from the downward pressure tendency, avoiding a certain degree of distortion at the bending position due to the downward pressure of the raised part of the front side of the metal plate, and ensuring the bending accuracy.

Description

Technical Field

[0001] This invention relates to the field of metal bending technology, specifically to a metal bending sheet apparatus and bending method. Background Technology

[0002] Metal bending sheets are a commonly used building material with an increasingly wide range of applications. Currently, metal bending sheets are generally bent using bending machines to bend straight metal sheets according to the actual bending requirements.

[0003] When a traditional metal bending machine bends a straight metal plate, the plate lifts up under pressure, creating a lever effect on both sides of the bending position. In particular, the longer portion on the bending side tends to press down in the opposite direction of bending due to its own weight, causing deviations in the bending position. In addition, during the bending process, rust (paint rust) easily appears at the bending position of the metal plate, affecting the accuracy of subsequent bending. To address these issues, this invention proposes a metal bending sheet device and bending method that can solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a metal bending sheet apparatus and bending method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a metal bending sheet apparatus and bending method, comprising:

[0006] A truss on which a platform is provided, the platform having a bending groove;

[0007] Pressure plates are distributed above the platform, and pressure blocks are provided on the pressure plates. The pressure blocks and bending grooves form an adjustable gap of a movable metal plate. A slag removal mechanism is installed on the pressure plates.

[0008] A power mechanism is provided, which can drive the pressure plate to cooperate with the bending groove to bend metal. The power mechanism includes a telescopic source, and the movable end of the telescopic source is connected to a movable plate. The movable plate is connected to the pressure plate through a connecting component.

[0009] A support plate, located on the front side of the truss, is connected to the truss via an adjustment mechanism. When the pressure plate is bent by the telescopic source, the support plate can move synchronously with the raised portion of the metal plate to lift it. In a preferred embodiment of the invention, the slag removal mechanism includes pre-blocks respectively hinged to both sides of the pressure plate. Each pre-block has a suction groove connected to a duct. The suction groove extends vertically to the outside and extends horizontally through the end closest to the pressure plate. When the pressure plate presses down, the two pre-blocks protrude downwards from the pressure plate, first pre-pressing the metal plate and then expanding outwards to be flush with the pressure plate. When the pressure plate rises and detaches from the metal plate, the two pre-blocks retract inwards, causing the two suction grooves to move along the upper surface of the metal plate and suck up the slag through the duct.

[0010] As a preferred embodiment of the present invention, the bending groove is provided with a drain groove for discharging slag from the lower surface of the metal plate.

[0011] As a preferred technical solution of the present invention, the connecting component includes two sets of bushings, the two sets of bushings forming an opening. After the telescopic source drives the two sets of bushings to continuously bend the pressure plate, the bent and raised part of the metal plate on the back side can be pushed back through the opening.

[0012] As a preferred technical solution of the present invention, at least one set of frame rods is rotatably connected to the front side of the pressure plate. The frame rods extend upward at an incline. A roller is connected to the top of the frame rods. A traction spring is connected to the frame rods. The traction spring is connected to the pressure plate. When the bent and raised part of the metal plate on the rear side passes back through the opening, it can contact the roller. The roller supports the metal plate passing back through the support plate by pivoting downward.

[0013] As a preferred technical solution of the present invention, one end of the pressure plate is hinged to a set of rods, and the other end abuts against another set of rods through a contact pad. By rotating the pressure plate, the opening has a notch, so that the bent and lifted metal plate can be taken out from the notch.

[0014] As a preferred technical solution of the present invention, the adjustment mechanism comprises multiple sets, including a rod connected to the support plate and a sleeve fitted on the rod. When the movable end of the telescopic source extends, the traction component pulls the sleeve to drive the rod closer to the truss and pushes the rod to move upward within the sleeve, so that the support plate moves obliquely upward.

[0015] As a preferred technical solution of the present invention, the traction assembly includes a crossbar, a shaft, and a pulley. The crossbar is connected to the sleeve and movably passes through the truss. A torsion spring is wound around the crossbar. The shaft and the pulley are rotatably connected to the truss. A ring wheel is provided at one end of the shaft, and a rope is wound around the ring wheel. The rope passes upward around the pulley and is connected to the movable end of the telescopic source. A drive disc is provided at the other end of the shaft, and a guide wheel is provided at the bottom of the shaft. The drive disc spirals from front to back and is embedded in the annular groove on the guide wheel.

[0016] A metal bending method, used in any of the above technical solutions, specifically includes the following steps:

[0017] S1. Pass the metal plate through the adjustment gap to move the part of the metal plate that needs to be bent to the bending groove.

[0018] S2. When the telescopic source extends, it can drive the movable plate to move the pressure plate downward through the connecting component. The pressure plate presses the metal plate above the bending groove into the bending groove for bending.

[0019] S3. The support plate is connected to the truss through the adjustment mechanism. The support plate can move synchronously with the front raised part of the metal plate to lift it, so that the support plate moves obliquely upward and close to the bending position of the metal, so that the front raised part of the bent metal plate can be blocked by the support plate from the downward pressure.

[0020] Compared with the prior art, the beneficial effects of the present invention are: the pallet of the present invention is connected to the truss through the adjustment mechanism, and the pallet can move synchronously with the front raised part of the metal plate to lift it, so that the front raised part of the metal plate that is bent can be blocked by the pallet to prevent the downward pressure, avoid the bending position from being pressed down by the front raised part of the metal plate and thus ensure the bending accuracy.

[0021] When the telescopic source extends, the traction component pulls the sleeve to move the rod closer to the truss and pushes the rod to move upward within the sleeve, causing the support plate to move obliquely upward. The obliquely upward-moving support plate is close to the bending position of the metal, which prevents the raised part of the metal plate from being far away from the bending position of the metal plate, resulting in a large gap between the bending position and the support position. This ensures a good blocking effect when lifting the raised part of the metal and further prevents the bending position from twisting.

[0022] When the bent and raised part of the metal plate goes back through the opening, it can contact the roller. The roller pivots downward through the support plate to support the metal plate going back through. By supporting the metal plate going back through the roller, the metal plate going back through can avoid affecting the bending. Attached Figure Description

[0023] Figure 1 This is a first-angle view of the overall structure of the present invention;

[0024] Figure 2 This is a second-angle view of the overall structure of the present invention;

[0025] Figure 3 This is a schematic diagram showing the connection between the connecting component and the pressure plate of the present invention;

[0026] Figure 4 This is a schematic diagram of the slag removal mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram showing the positional relationship between the pallet and the platform of the present invention;

[0028] Figure 6 This is a schematic diagram of the connection between the pallet and the truss of the present invention via an adjustment mechanism;

[0029] In the diagram: 100, Truss; 200, Platform; 210, Bending Groove; 211, Discharge Groove; 300, Pressure Plate; 310, Pressure Block; 320, Contact Pad; 330, Frame Rod; 340, Traction Spring; 350, Roller; 400, Power Mechanism; 410, Telescopic Source; 420, Movable Plate; 430, Liner Rod; 440, Opening; 500, Support Plate; 600, Adjustment Mechanism; 610, Rod; 611, Guide Wheel; 620, Sleeve; 630, Crossbar; 631, Torsion Spring; 640, Shaft Rod; 641, Ring Wheel; 642, Drive Disc; 650, Pulley; 660, Rope; 700, Slag Removal Mechanism; 710, Pre-block; 720, Suction Groove; 730, Air Duct. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-6 The present invention provides a technical solution: a metal bending sheet device and bending method, including a truss 100, a pressure plate 300, a power mechanism 400 and a support plate 500.

[0032] Please see Figure 1 , Figure 2 The truss 100 is fixedly connected to the ground or other supporting surface to maintain the stability of the device. A platform 200 is provided on the truss 100, and the platform 200 has a bending groove 210.

[0033] Please see Figure 1 , Figure 2 , Figure 5The pressure plate 300 is distributed above the platform 200. The pressure plate 300 is provided with a pressure block 310. The pressure block 310 and the bending groove 210 form an adjustable gap for a movable metal plate. The pressure plate 300 is equipped with a slag removal mechanism 700. The metal plate moves its position by adjusting the gap, so that the part of the metal plate that needs to be bent moves to the bending groove 210.

[0034] See Figure 1 , Figure 2 The power mechanism 400 can drive the pressure plate 300 to cooperate with the bending groove 210 to bend the metal. The power mechanism 400 includes a telescopic source 410. The movable end of the telescopic source 410 is connected to a movable plate 420. The movable plate 420 is connected to the pressure plate 300 through a connecting assembly. The telescopic source 410 is preferably a hydraulic cylinder. When the movable end of the telescopic source 410 extends, it can drive the movable plate 420 to drive the pressure plate 300 to move downward through the connecting assembly. The pressure plate 300 presses the metal plate above the bending groove 210 into the bending groove 210 for bending.

[0035] Please see Figure 1 , Figure 2 , Figure 5 The support plate 500 is located on the front side of the truss 100. The support plate 500 is connected to the truss 100 through the adjustment mechanism 600. When the telescopic source 410 drives the pressure plate 300 to bend the metal plate, the support plate 500 can move synchronously with the raised part of the front side of the metal plate to lift it. An elastic layer is provided on the upper side of the support plate 500. The elastic layer includes rubber and a sponge layer laid on the rubber. Through the contact of the elastic layer with the metal plate, it can support the front part of the metal plate before bending the metal plate, without the need for manual support. When bending the metal plate, the movable end of the telescopic source 410 extends and can drive the support plate 500 to move. That is, the support plate 500 lifts the raised part of the front side of the metal plate.

[0036] When bending a metal plate, the metal plate is passed through the adjustment gap, moving the part of the metal plate that needs to be bent to the bending groove 210. When the movable end of the telescopic source 410 extends, it can drive the movable plate 420 to drive the pressure plate 300 to move downward through the connecting component. The pressure plate 300 presses the metal plate above the bending groove 210 into the bending groove 210 for bending. The support plate 500 is connected to the truss 100 through the adjustment mechanism 600. The support plate 500 can move synchronously with the front raised part of the metal plate to lift it, so that the front raised part of the metal plate being bent can be blocked by the support plate 500 to prevent the bending position from being pressed down by the front raised part of the metal plate and thus ensuring the accuracy of bending.

[0037] Example 2

[0038] Based on Example 1, please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 The adjustment mechanism 600 has multiple sets. The adjustment mechanism 600 includes a rod 610 connected to the support plate 500 and a sleeve 620 sleeved on the rod 610. When the movable end of the telescopic source 410 extends, the traction component pulls the sleeve 620 to drive the rod 610 closer to the truss 100 and pushes the rod 610 to move upward in the sleeve 620, so that the support plate 500 moves obliquely upward. The obliquely upward-moving support plate 500 is close to the bending position of the metal, which avoids the raised position of the metal plate being far away from the bending position of the metal plate, resulting in a large gap between the bending position and the lifting position. This ensures a good blocking effect when lifting the raised part of the metal and further prevents the bending position from twisting.

[0039] Please see Figure 1 , Figure 2 , Figure 5 , Figure 6 The traction assembly includes a crossbar 630, a shaft 640, and a pulley 650. The crossbar 630 is connected to the sleeve 620 and movably passes through the truss 100. A torsion spring 631 is wound around the crossbar 630. The shaft 640 and the pulley 650 are rotatably connected to the truss 100. One end of the shaft 640 is provided with a coil wheel 641, on which a rope 660 is wound. The rope 660 passes upward around the pulley 650 and connects to the movable end of the telescopic source 410. The other end of the shaft 640 is provided with a drive disc 642. A guide wheel 611 is provided at the bottom of the shaft 610. The drive disc 642 spirals from front to back and fits into the annular groove on the guide wheel 611. The movable end of the telescopic source 410 extends and pulls the rope 660, causing the shaft 640 to rotate. When the shaft 640 rotates, it drives the drive disc 642 to rotate, causing the drive disc 642 to move the rod 610 closer to the truss 100 and to move the rod 610 upward along the sleeve 620. That is, the rod 610 makes a compound movement of upward and lateral movement towards the truss 100, causing the rod 610 to move the support tilted upward. When the movable end of the telescopic source 410 retracts, under the weight of the raised part of the metal plate and the support plate 500, as well as the elastic action of the torsion spring 631, the rod 610 presses against the drive disc 642 through the guide wheel 611. The shaft 640 drives the drive reverse disc to rotate, and the shaft 640 winds up the rope 660 through the coil wheel 641, causing the support plate 500 to tilt downward and reset. The lifting action can be performed again during the next bending operation.

[0040] Example 3

[0041] Based on Example 1 or Example 2, please refer to Figure 4The slag removal mechanism 700 includes pre-blocks 710 respectively mounted on both sides of the pressure plate 300 via hinges. Each pre-block 710 has a suction groove 720 and is connected to an air duct 730. The suction groove 720 extends vertically to the outside and extends horizontally through one end near the pressure plate 300. When the pressure plate 300 is pressed down, the two pre-blocks 710 protrude downward from the pressure plate 300, first pre-pressing the metal plate and then expanding outward to be flush with the pressure plate 300. When the pressure plate 300 rises and detaches from the metal plate, the two pre-blocks... 710 retracts inward, causing the two suction grooves 720 to move along the upper surface of the metal plate and suck up the slag through the air duct 730. The air duct 730 is a flexible hose and is connected to a suction fan. During the metal bending operation, the two sets of pre-blocks 710 can move laterally along the upper surface of the metal plate, expanding and contracting. This allows the suction grooves 720 to suck up the slag on the upper surface of the metal bending position. The suction groove 720 also extends laterally through the end near the pressure plate 300, effectively sucking up the slag at the pressure point of the pressure plate 300.

[0042] Please see Figure 6 The bending groove 210 is provided with a drain groove 211, which is used to discharge the slag on the lower surface of the metal plate. The slag on both the upper and lower surfaces of the metal plate at the bending point can be discharged, so that the metal plate will not be affected by the slag during bending, thus ensuring the bending accuracy.

[0043] Example 4

[0044] Based on any of the above embodiments, please refer to Figure 3 The connecting component includes two sets of bushings 430, which form an opening 440. The telescopic source 410 drives the two sets of bushings 430 to continuously bend the pressure plate 300, so that the bent and raised part of the metal plate on the back side can be pushed back through the opening 440, that is, so that the metal will not be blocked after continuous bending.

[0045] Please see Figure 3 As the weight of the rear part of the continuously bent metal plate gradually increases, it also tends to press down on the next bending position. To address this, at least one set of support rods 330 is rotatably connected to the front side of the pressure plate 300. The support rods 330 extend upward at an angle, and a roller 350 is connected to the top of the support rods 330. A traction spring 340 is connected to the support rods 330 and is connected to the pressure plate 300. When the bent and raised part of the metal plate passes back through the opening 440, it can contact the roller 350. The roller 350 pivots downward through the support plate 500 to support the passing metal plate. By supporting the passing metal plate through the roller 350, the passing metal plate can be prevented from affecting the bending.

[0046] Please see Figure 3One end of the pressure plate 300 is hinged to a set of rods 610, and the other end abuts against another set of rods 610 through a contact pad 320. Rotating the pressure plate 300 creates a notch in the opening 440, allowing the bent and lifted metal plate to be removed from the notch, making material removal simple and convenient.

[0047] Example 5

[0048] A metal bending method specifically includes the following steps:

[0049] S1. Pass the metal plate through the adjustment gap so that the part of the metal plate that needs to be bent is moved to the bending groove 210.

[0050] S2. When the movable end of the telescopic source 410 extends, it can drive the movable plate 420 to drive the pressure plate 300 to move downward through the connecting component. The pressure plate 300 presses the metal plate above the bending groove 210 into the bending groove 210 for bending.

[0051] S3. The support plate 500 is connected to the truss 100 through the adjustment mechanism 600. The support plate 500 can move synchronously with the front raised part of the metal plate to lift it, so that the support plate 500 moves obliquely upward and close to the bending position of the metal, so that the front raised part of the bent metal plate can be blocked by the support plate 500 from the downward pressure.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal sheet bending device, characterized in that, include: A truss on which a platform is provided, the platform having a bending groove; Pressure plates are distributed above the platform, and pressure blocks are provided on the pressure plates. The pressure blocks and bending grooves form an adjustable gap of a movable metal plate. A slag removal mechanism is installed on the pressure plates. A power mechanism is provided, which can drive the pressure plate to cooperate with the bending groove to bend metal. The power mechanism includes a telescopic source, and the movable end of the telescopic source is connected to a movable plate. The movable plate is connected to the pressure plate through a connecting component. The support plate is located on the front side of the truss. The support plate is connected to the truss through an adjustment mechanism. When the telescopic source drives the pressure plate to bend the metal plate, the support plate can move synchronously with the raised part of the front side of the metal plate to lift it. The slag removal mechanism includes pre-blocks respectively set on both sides of the pressure plate by hinges. Each pre-block has a suction groove and is connected to an air duct. The suction groove is vertically connected to the outside and has a horizontal penetration at the end near the pressure plate. When the pressure plate is pressed down, the two pre-blocks protrude downward from the pressure plate, first pre-pressing the metal plate and then expanding outward to be flush with the pressure plate. When the pressure plate is raised and the pressure plate is separated from the metal plate, the two pre-blocks retract inward, so that the two suction grooves move along the upper surface of the metal plate and suck up the slag through the air duct. The adjustment mechanism has multiple sets. The adjustment mechanism includes a rod connected to the support plate and a sleeve fitted on the rod. When the movable end of the telescopic source extends, the traction component pulls the sleeve to drive the rod closer to the truss and pushes the rod to move upward in the sleeve, so that the support plate moves obliquely upward. The traction assembly includes a crossbar, a shaft, and a pulley. The crossbar is connected to the sleeve and movably passes through the truss. A torsion spring is wound around the crossbar. The shaft and the pulley are rotatably connected to the truss. A ring wheel is provided at one end of the shaft, and a rope is wound around the ring wheel. The rope passes upward around the pulley and is connected to the movable end of the telescopic source. A drive disc is provided at the other end of the shaft. A guide wheel is provided at the bottom of the shaft. The drive disc spirals from front to back and fits into the annular groove on the guide wheel.

2. The metal bending sheet metal device according to claim 1, characterized in that, The bending groove is provided with a drain channel for discharging slag from the lower surface of the metal plate.

3. The metal bending sheet metal device according to claim 1, characterized in that, The connecting assembly includes two sets of bushings, which form an opening. After the telescopic source drives the two sets of bushings to continuously bend the pressure plate, the bent and raised part of the metal plate can be pushed back through the opening.

4. The metal bending sheet metal device according to claim 3, characterized in that, At least one set of support rods is rotatably connected to the front side of the pressure plate. The support rods extend upward at an angle. A roller is connected to the top of the support rods. A traction spring is connected to the support rods. The traction spring is connected to the pressure plate. When the bent and raised part of the metal plate passes back through the opening, it can contact the roller. The roller supports the metal plate passing back by pivoting downward through a support plate.

5. A metal bending sheet metal device according to claim 4, characterized in that, One end of the pressure plate is hinged to a set of rods, and the other end abuts against another set of rods through a contact pad. Rotating the pressure plate creates a notch in the opening, allowing the bent and lifted metal plate to be removed from the notch.

6. A method for bending metal, characterized in that, The metal bending sheet metal apparatus according to any one of claims 1-5 specifically includes the following steps: S1. Pass the metal plate through the adjustment gap to move the part of the metal plate that needs to be bent to the bending groove. S2. When the telescopic source extends, it can drive the movable plate to move the pressure plate downward through the connecting component. The pressure plate presses the metal plate above the bending groove into the bending groove for bending. S3. The support plate is connected to the truss through the adjustment mechanism. The support plate can move synchronously with the front raised part of the metal plate to lift it, so that the support plate moves obliquely upward and close to the bending position of the metal, so that the front raised part of the bent metal plate can be blocked by the support plate from the downward pressure.

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