Bending machine for metal plates

Abstract

The utility model discloses a bending machine for sheet metal, and relates to the technical field of bending machines, the bending machine comprises a frame body, a placing table fixed on the frame body and a sheet metal main body arranged above the placing table, a drying mechanism is arranged on the placing table, the drying mechanism comprises a drying assembly, the drying assembly comprises two groups of side blocks and an upper pipeline, a plurality of groups of hollow rotating rods are rotationally arranged between the two groups of side blocks; through the designed drying mechanism, the plate main body can be heated in cold weather to improve the ductility and toughness of the plate main body, and through the design of the hollow pin rollers, the plate main body is blown up and down through hot air, chippings or foreign matters attached to the outer surface of the plate main body are blown and cleaned, and the plate main body can be dried. And the bending quality in the subsequent bending process is improved, meanwhile, moisture on the outer surface of the plate body can be blow-dried in humid weather, and bending is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of bending machine technology, specifically a bending machine for metal sheets. Background Technology

[0002] A sheet metal bending machine is an industrial device used to precisely bend and shape sheet metal through pressure processing. It is widely used in machinery manufacturing, automotive, aerospace, home appliances, construction and other fields. Its core function is to apply controllable pressure to the sheet metal through a die, causing it to undergo plastic deformation and form the desired angle or shape.

[0003] In existing technology, the sheet metal is placed on the placement table of the bending machine, and then the upper cylinder drives the upper die to contact and press the sheet metal downwards. Then, the lower cylinder drives the flipping die to flip and apply pressure to the sheet metal to bend it. However, bending is usually done by directly placing the sheet metal on the placement table. In humid weather, the surface of the metal sheet is prone to adhering a lot of moisture. Moisture may increase the friction between the die and the sheet metal during bending, affecting the forming accuracy. At the same time, when bending the sheet metal in cold weather, the cold sheet metal will reduce the ductility and toughness of the sheet metal during bending, and is prone to cracking or breakage. Therefore, we propose a bending machine for metal sheets. Utility Model Content

[0004] The purpose of this utility model is to provide a bending machine for metal sheets to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bending machine for metal sheets, comprising a frame, a placement platform fixed on the frame, and a sheet body disposed above the placement platform. A drying mechanism is provided on the placement platform, and the drying mechanism includes:

[0006] The drying assembly includes two sets of side blocks and an upper pipeline. Multiple sets of hollow rotating rods are rotatably arranged between the two sets of side blocks. Multiple sets of hollow rollers are sleeved and fixed on the outside of the hollow rotating rods to push the main body of the sheet material to move.

[0007] The outer wall of the hollow roller is provided with multiple sets of blowing grooves for drying the lower surface of the main body of the plate.

[0008] Multiple sets of nozzles are installed on the upper pipe for drying the upper surface of the main body of the board.

[0009] Preferably, the placement platform has multiple sets of grooves, one end of the hollow rotating rod is provided with a slip ring, and the side of the side block is provided with an installation tube.

[0010] Preferably, the hollow rotating rod is provided with an arc-shaped box, and multiple sets of counterweights are evenly arranged at the bottom of the arc-shaped box along its length to keep the arc-shaped box in a horizontal state.

[0011] Preferably, the drying mechanism further includes a lifting assembly, which includes two sets of columns fixed on the frame, and a hydraulic lifting rod is fixedly installed on the top of the columns.

[0012] Preferably, the front of the placement platform is provided with a drying component, which includes two sets of U-shaped vertical plates located on the front of the placement platform. A rod is rotatably arranged between the two sets of U-shaped vertical plates, and two sets of arc-shaped sponges are provided on the outside of the rod for wiping the surface of the board body that passes over it.

[0013] Preferably, the outer wall of the rod is fixedly provided with two sets of arc-shaped male and female adhesive strips, and the inner wall of the arc-shaped sponge is fixedly provided with two sets of arc-shaped male and female adhesive strips.

[0014] Preferably, the spiral-shaped vertical plate is provided with two sets of screws, and the outside of the screws is connected with a threaded ring by a thread.

[0015] Preferably, two sets of upper cylinders are hinged to the frame, and the working end of the upper cylinder is hinged to the upper mold;

[0016] Two sets of lower cylinders are hinged to the frame, and the working end of the lower cylinder is rotatably equipped with a flipping mold.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) The present invention, through its designed drying mechanism, can heat the main body of the board in cold weather to improve the ductility and toughness of the main body of the board. In addition, with the hollow roller design, hot air can be used to blow the main body of the board up and down to clean the debris or foreign objects attached to the outer surface of the main body of the board, thereby improving the bending quality in the subsequent bending process. At the same time, it can also dry the moisture on the outer surface of the main body of the board in humid weather, making bending easier. Moreover, the rotation of the hollow roller can drive the main body of the board to move to the top of the flipping mold, eliminating the need for manual pushing of the main body of the board for bending, thus increasing safety.

[0019] (2) The present invention uses an arc-shaped sponge structure for the drying component, which can quickly absorb the moisture attached to the surface of the board, making it convenient to dry the surface moisture with hot air. Moreover, the spacing between the arc-shaped sponges can be adjusted according to the thickness of the board body, increasing the applicability to boards of different thicknesses during the drying process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0022] Figure 3 This is a bottom view of the structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the placement platform structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the drying component structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the hollow roller and hollow rotating rod structure of this utility model;

[0026] Figure 7 This is a bottom view schematic diagram of the hollow roller and hollow rotating rod of this utility model;

[0027] In the diagram: 100, frame; 101, main body of the sheet metal; 102, upper mold; 103, upper cylinder; 104, placement platform; 105, lower cylinder; 106, flipping mold; 200, arc-shaped sponge; 201, diagonal brace; 202, U-shaped vertical plate; 203, screw; 204, arc-shaped male and female connector one; 205, threaded ring; 206, arc-shaped male and female connector two; 300, side block; 301, arc-shaped box; 303, upper pipeline; 304, hydraulic lifting rod; 305, mounting pipe; 306, groove; 307, hollow roller; 308, blow groove; 309, hollow rotating rod; 310, connector; 311, air slip ring; 312, transmission belt; 313, nozzle. Detailed Implementation

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

[0029] Example 1

[0030] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7This utility model provides a technical solution: a bending machine for metal sheets, including a frame 100, a placement platform 104 fixed on the frame 100, and a sheet body 101 disposed above the placement platform 104. By blowing the sheet body 101 up and down, surface debris and foreign matter can be removed, reducing the likelihood of debris and foreign matter from being squeezed and embedded inside the sheet body 101 by the flipping die 106 after contact with the sheet body 101 during subsequent bending. Heating the sheet body 101 increases its temperature, significantly improving its ductility and toughness during bending, making it easier to form and less prone to breakage or cracking. Furthermore, heating significantly reduces the yield strength of the metal material, making it more susceptible to plastic deformation and reducing stress peaks during bending. A drying mechanism is provided on the placement platform 104, including a drying component comprising two... The side block 300 and the upper pipe 303 are located on the right side of the equipment. A geared motor is fixed on the side block 300. The working end of the geared motor can rotate forward or backward to make the hollow rotating rod 309 rotate forward or backward. Repeating this can make the plate body 101 fully heated, dry the moisture or clean the outer surface debris and foreign objects before bending. The working end of the geared motor is fixedly connected to one of the hollow rotating rods 309. Multiple sets of hollow rotating rods 309 are rotatably arranged between the two sets of side blocks 300. Multiple sets of hollow rollers 307 are fixed on the outside of the hollow rotating rods 309. They can be raised to push the plate body 101 to move, and can also blow hot air to the lower surface of the plate body 101 through multiple sets of blowing grooves 308 on the outside of the hollow rollers 307 for drying and removing foreign objects or debris attached to the lower surface of the plate body 101. Multiple sets of blowing grooves 308 are opened on the outer wall of the hollow rollers 307, and multiple sets of blowing nozzles 313 are opened on the upper pipe 303.

[0031] The placement platform 104 has multiple sets of grooves 306. The top of the hollow roller 307 is located in the groove 306. One end of the hollow rotating rod 309 is provided with an air slip ring 311. The air slip ring 311 is composed of a stationary end (outer ring) and a rotating end (inner ring). The rotating end of the air slip ring 311 is connected to the left end of the hollow rotating rod 309, and the stationary end is connected to the mounting tube 305. The side of the side block 300 is provided with the mounting tube 305. The mounting tube 305 is fixed to the side block 300 located on the left side of the equipment by an inclined plate. The mounting tube 305 is connected to the air slip ring 311. Both ends of the upper pipe 303 are connected to the mounting tube 305. The end of the mounting tube 305 is fixedly provided with a telescopic tube. The end of the telescopic tube is fixedly provided with a connector 310. The connector 310 is connected to the external hot air blower equipment to provide a hot air source.

[0032] An arc-shaped box 301 is provided on the hollow rotating rod 309. A transmission belt 312 is sleeved on the outside of the hollow rotating rod 309. Multiple sets of counterweights are evenly arranged at the bottom of the arc-shaped box 301 along its length. The counterweights can increase the weight at the bottom of the arc-shaped box 301, so that the arc-shaped box 301 will not rotate during the rotation of the hollow rotating rod 309 inside the arc-shaped box 301, and the opening at the top of the arc-shaped box 301 is always facing upward. When the hollow roller 307 blows hot air out of the blow trough 308 at the bottom of the equipment downward during the rotation, the hot air will blow into the interior of the arc-shaped box 301. Then, through the arc-shaped inner wall of the arc-shaped box 301, the hot air is reversed and blown out from the upper opening of the arc-shaped box 301 towards the lower surface of the main body of the plate 101, avoiding the waste of hot air blowing downward.

[0033] The drying mechanism also includes a lifting assembly, which includes two sets of columns fixed on the frame 100. A hydraulic lifting rod 304 is fixedly installed on the top of the columns. When the hydraulic lifting rod 304 indirectly lifts the main body of the board 101, it can make the lower surface of the main body of the board 101 detach from the surface of the placement table 104. When the working end of the hydraulic lifting rod 304 descends, it no longer lifts the main body of the board 101, so that the bottom of the main body of the board 101 contacts the placement table 104. The top working end of the hydraulic lifting rod 304 extends to the surface of the side block 300.

[0034] This invention, through its designed drying mechanism, can heat the sheet body 101 in cold weather to improve its ductility and toughness. Combined with the hollow roller 307 design, it enables hot air to blow hot air up and down across the sheet body 101, cleaning debris or foreign matter adhering to its outer surface and improving bending quality during subsequent bending. Simultaneously, it can dry the moisture on the outer surface of the sheet body 101 in humid weather, facilitating bending. Furthermore, the rotation of the hollow roller 307 moves the sheet body 101 above the flipping mold 106, eliminating the need for manual pushing of the sheet body 101 for bending and increasing safety.

[0035] Example 2

[0036] Please refer to Example 1. Figures 1-5The front of the placement table 104 is provided with a drying component, which includes two sets of U-shaped vertical plates 202 located on the front of the placement table 104. The U-shaped vertical plates 202 are fixed to the diagonal braces 201 by bolts. When the drying step is not required, the U-shaped vertical plates 202 can be removed, and then the arc-shaped sponge 200 can be removed. The U-shaped vertical plates 202 are fixed to the frame 100 by the diagonal braces 201. A rod is rotatably provided between the two sets of U-shaped vertical plates 202. Two sets of arc-shaped sponges 200 are provided on the outside of the rod for drying the surface of the board body 101. Before bending the board body 101 in humid weather, the outer surface is dried by the arc-shaped sponge 200. If there is no moisture on the outer surface of the board body 101 in cold weather, this drying step can be skipped directly, and the board body 101 can be placed directly on the placement table 104 for subsequent operations.

[0037] Two sets of arc-shaped male and female adhesive strips 204 are fixedly installed on the outer wall of the rod, and two sets of arc-shaped male and female adhesive strips 206 are fixedly installed on the inner wall of the arc-shaped sponge 200. The arc-shaped male and female adhesive strips 206 and the arc-shaped male and female adhesive strips 204 are connected by adhesive.

[0038] Two sets of screws 203 are provided on the U-shaped vertical plate 202. The screws 203 are connected to the outside of the screw rings 205 by threads. The screws 203 and the rod body are rotatably connected by a rotating shaft, so that the screws 203 will not rotate when the rod body rotates.

[0039] This utility model, through the design of the drying component, adopts an arc-shaped sponge 200 structure, which can quickly absorb the moisture adhering to the surface of the board, making it convenient to dry the surface moisture with hot air afterwards. Moreover, the spacing between the arc-shaped sponges 200 can be adjusted according to the thickness of the board body 101, increasing the applicability to boards of different thicknesses during the drying process.

[0040] In this embodiment, two sets of upper cylinders 103 are hinged on the frame 100. The working end of the upper cylinder 103 is hinged to the upper mold 102. The driving source of the upper cylinder 103 and the lower cylinder 105 is an air compressor, and the driving source of the hydraulic lifting rod 304 is a hydraulic pump station.

[0041] Two sets of lower cylinders 105 are hinged to the frame 100. The working end of the lower cylinder 105 is rotatably equipped with a flipping mold 106. The front of the flipping mold 106 is rotatably connected to the frame 100 through a rotating shaft.

[0042] Working principle and usage process of this utility model:

[0043] When using this invention, in humid weather conditions, if the sheet body 101 is bent, a lot of water droplets will easily adhere to its outer surface. In this case, the sheet body 101 is first passed between the two sets of rods to be wiped dry. The curved sponge 200 on the outside of the two sets of rods then contacts and absorbs the water droplets on the surface of the sheet body 101, reducing the moisture content. Then (or in cold weather), the sheet body 101 is placed in a suitable position above the placement platform 104. Next, the two sets of hydraulic lifting rods 304 are activated, driving both sets of side blocks 300 to move upwards a certain distance. The hollow rotating rods 309, hollow rollers 307, and arc-shaped box 301 rise together. The top of the hollow rollers 307 then contacts and lifts the plate body 101 on the placement platform 104. The reduction motor on the right-side block 300 of the equipment is then activated, driving one set of hollow rotating rods 309 to rotate. This rotating set of hollow rotating rods 309, through the transmission belt 312 on the left end, drives the other three sets of hollow rotating rods 309 to rotate synchronously. The hollow rotating rods 309 drive the external hollow rollers 307 to rotate. The forward or reverse rotation of the hollow rollers 307 then moves the lifted plate body 101 forward or backward. The movement of the plate body 101 is then controlled by the rotation of the hollow rollers 307. Multiple sets of blowing channels 308 blow hot air onto the lower surface of the upper plate body 101. During the movement of the plate body 101, the nozzles 313 outside the upper pipe 303 also blow hot air onto the upper surface of the plate body 101. This hot air blowing on the upper and outer surfaces of the plate body 101 heats both the upper and lower surfaces, dries moisture on the outer surface, and removes debris or foreign matter adhering to the outer surface. This ensures the plate body 101 remains clean during subsequent bending, preventing debris or foreign matter from embedding within the plate body 101 and affecting bending quality. After repeatedly moving forward or backward, the hollow rollers 307 move the main body of the plate 101 backward, causing the rear end of the main body of the plate 101 to move above the flipping mold 106. At this time, the working end of the hydraulic lifting rod 304 descends, causing multiple sets of hollow rollers 307 to descend to the top and be in the groove 306. The bottom of the main body of the plate 101 then contacts the surface of the placement platform 104. Then, the two sets of upper cylinders 103 are activated, driving the lower upper mold 102 to move downward and contact and press the main body of the plate 101. At this time, the two sets of lower cylinders 105 are activated, driving the upper flipping mold 106 to rotate. The plate 101 is bent by the rotation of the flipping mold 106.

[0044] When drying the moisture on the outer surface of the main body 101 of the board using the arc-shaped sponge 200, the spacing between the two sets of rods can be adjusted according to the thickness of the main body 101 of the board. To adjust, loosen the threaded ring 205 by rotating it outward, then move the screw 203 up or down to the appropriate position, causing the arc-shaped sponge 200 to move along with it. Finally, tighten the threaded ring 205 towards the direction of the U-shaped vertical plate 202 to fix it. This will adjust the spacing between the arc-shaped sponges 200, and thus the spacing between the two sets of rods. Replace the arc-shaped sponge 200 when it becomes saturated with water or is damaged. To replace it, peel off the arc-shaped male and female stickers 206 on the inner wall of the arc-shaped sponge 200 outward, and then attach the arc-shaped male and female stickers 206 on the new arc-shaped sponge 200 to the corresponding arc-shaped male and female stickers 204 on the outside of the rod.

[0045] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A bending machine for sheet metal, comprising a frame (100), a placement table (104) fixed on the frame (100), and a sheet metal body (101) disposed above the placement table (104), wherein a drying mechanism is provided on the placement table (104), characterized in that, The drying mechanism includes: The drying assembly includes two sets of side blocks (300) and an upper pipe (303). Multiple sets of hollow rotating rods (309) are rotatably arranged between the two sets of side blocks (300). Multiple sets of hollow rollers (307) are sleeved and fixed on the outside of the hollow rotating rods (309) for pushing the main body of the plate (101) to move. The outer wall of the hollow roller (307) is provided with multiple sets of blowing grooves (308) for drying the lower surface of the main body of the plate (101); The upper pipe (303) is provided with multiple sets of nozzles (313) for drying the upper surface of the main body of the plate (101).

2. A bending machine for sheet metal according to claim 1, characterized in that: The placement platform (104) has multiple sets of grooves (306), one end of the hollow rotating rod (309) is provided with a slip ring (311), and the side of the side block (300) is provided with an installation tube (305).

3. The bending machine for sheet metal according to claim 1, characterized in that: An arc-shaped box (301) is provided on the hollow rotating rod (309). Multiple sets of counterweights are evenly arranged at the bottom of the arc-shaped box (301) and along the length of the arc-shaped box (301) to keep the arc-shaped box (301) in a horizontal state.

4. The bending machine for sheet metal according to claim 1, characterized in that: The drying mechanism also includes a lifting assembly, which includes two sets of columns fixed on the frame (100), and a hydraulic lifting rod (304) is fixedly installed on the top of the columns.

5. The bending machine for sheet metal according to claim 1, characterized in that: The front of the placement platform (104) is provided with a drying component, which includes two sets of U-shaped vertical plates (202) located on the front of the placement platform (104). A rod is rotatably arranged between the two sets of U-shaped vertical plates (202), and two sets of arc-shaped sponges (200) are provided on the outside of the rod for wiping the surface of the board body (101) that passes by.

6. A press brake for bending sheet metal as defined in claim 5, wherein: Two sets of arc-shaped male and female adhesive strips (204) are fixedly installed on the outer wall of the rod, and two sets of arc-shaped male and female adhesive strips (206) are fixedly installed on the inner wall of the arc-shaped sponge (200).

7. A bending machine for metal sheets according to claim 5, characterized in that: The spiral vertical plate (202) is provided with two sets of screws (203), and the screws (203) are connected to the outside of the screws (203) by threaded rings (205).

8. The bending machine for sheet metal according to claim 1, characterized in that: Two sets of upper cylinders (103) are hinged to the frame (100), and the working end of the upper cylinder (103) is hinged to the upper mold (102); Two sets of lower cylinders (105) are hinged to the frame (100), and the working end of the lower cylinder (105) is rotatably provided with a flipping mold (106).

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