A stretching device for sheet metal processing

Abstract

This utility model relates to the field of sheet metal stretching technology, specifically a stretching device for sheet metal processing, comprising: a base, a first hydraulic cylinder fixedly installed inside the base, a stretching plate fixedly installed on one side of the first hydraulic cylinder, and a pressure plate provided on the top of the base; a rapid unloading mechanism, for rapidly unloading the stretched sheet metal, the rapid unloading mechanism being provided on one side of the base; wherein, the rapid unloading mechanism includes two movable grooves formed on the surface of the base, and unloading components are provided in both movable grooves; during extrusion stretching, the unloading components retract without affecting the extrusion stretching, and when the pressure plate is lifted after processing, the unloading components move upward synchronously to lift the sheet metal part, thus facilitating rapid unloading and improving the efficiency of sheet metal processing; at the same time as the pressure plate is lifted, the ejector component simultaneously ejects the sheet metal part, preventing the sheet metal part from adhering to the bottom of the pressure plate.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal stretching technology, and in particular to a stretching device for sheet metal processing. Background Technology

[0002] The main purpose of using stretching devices in sheet metal processing is to change the shape and size of metal sheets by applying pressure. The core function of this device is to achieve sheet metal deformation, including stretching, thinning and reshaping the outline of the sheet metal.

[0003] As shown in the reference case "A stretching device for sheet metal processing" (publication number CN211218238U), it can increase the dragging contact area during stretching, effectively avoiding indentations. This solves the problem that the current stretching method has a small dragging contact area, which easily causes excessive pressure on local areas, resulting in indentations on the surface of sheet metal parts, affecting subsequent processing, and causing defective products.

[0004] However, existing extrusion stretching devices are usually set vertically for processing disc-shaped sheet metal parts. After processing, because the sheet metal parts themselves have a certain depth, they need to be lifted and unloaded, which greatly affects the efficiency of sheet metal stretching processing.

[0005] Therefore, a stretching device for sheet metal processing is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a stretching device for sheet metal processing to solve the above-mentioned problems. It improves the problem that existing extrusion stretching devices are usually set vertically and used to process disc-shaped sheet metal parts. After processing, the sheet metal parts themselves have a certain depth, which requires lifting them for unloading, thus greatly affecting the efficiency of sheet metal stretching processing.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a stretching device for sheet metal processing, comprising: a base, wherein a first hydraulic cylinder is fixedly installed inside the base, a stretching plate is fixedly installed on one side of the first hydraulic cylinder, and a pressure plate is provided on the top of the base; a rapid unloading mechanism, wherein the rapid unloading mechanism for rapidly unloading the stretched sheet metal is provided on one side of the base; wherein the rapid unloading mechanism includes two movable slots formed on the surface of the base, each of the two movable slots being provided with an unloading component, and an ejection component is provided on one side of the pressure plate. During extrusion stretching, the unloading component retracts without affecting the extrusion stretching, and when the pressure plate is lifted after processing, the unloading component moves upward synchronously to lift the sheet metal part, thereby facilitating rapid unloading and improving the efficiency of sheet metal processing. At the same time as the pressure plate is lifted, the ejection component simultaneously ejects the sheet metal part, preventing the sheet metal part from adhering to the bottom of the pressure plate.

[0008] Preferably, the feeding assembly includes a movable plate slidably installed inside the movable groove. Multiple rubber wheels are rotatably mounted on the surface of the movable plate. Two first support rods are provided at the bottom of the movable plate. One end of each of the two first support rods is slidably connected to the inner wall of the movable groove. A first spring is sleeved on the outer side of the first support rod. When the pressure plate moves down, it simultaneously contacts the multiple rubber wheels, squeezing the multiple rubber wheels to drive the movable plate down and simultaneously push the two first support rods to move. Squeezing the first spring can cause the multiple rubber wheels to retract, avoiding affecting the stretching process.

[0009] Preferably, the unloading assembly further includes a movable frame slidably installed inside the movable groove. A conveyor belt is fixedly installed on one side of the movable frame, and one side of the conveyor belt extends out of the movable frame. The conveyor belt is located at the bottom of the movable plate, and one side of the conveyor belt is in contact with multiple rubber wheels. The other ends of the two first support rods are fixedly connected to the bottom of the movable frame. When the movable plate moves down, it synchronously drives the movable frame to move down and squeeze the corresponding two first support rods. After stretching, the first spring resets the movable frame, movable plate, and multiple rubber wheels to lift the sheet metal part. At this time, the conveyor belt rotates synchronously, driving the multiple rubber wheels to rotate, which can transport and unload the sheet metal part, which is very convenient.

[0010] Preferably, the two movable slots are located on both sides of the stretching plate, and the two ends of the first spring are fixedly connected to the movable frame and the inner wall of the adjacent movable slot, respectively. The movable slots on both sides can contact and lift the sheet metal parts on both sides when the two movable plates drive the corresponding multiple rubber wheels to move upward, which can more stably lift and unload the sheet metal parts.

[0011] Preferably, a support frame is fixedly installed on one side of the base, and a second hydraulic cylinder is fixedly installed on one side of the support frame. One end of the second hydraulic cylinder is fixedly connected to the top of the pressure plate. The pressure plate can be driven by the second hydraulic cylinder to press down and press the sheet metal parts. Then, in conjunction with the first hydraulic cylinder to push the stretching plate up, the sheet metal parts can be squeezed and stretched very conveniently.

[0012] Preferably, the ejection assembly includes two movable plates slidably mounted on the bottom of the pressure plate. Two second support rods are fixedly mounted on the top of the movable plates. One end of each of the two second support rods is slidably connected to the inside of the pressure plate. A second spring is sleeved on the outside of the second support rod. The two ends of the second spring are fixedly connected to the inside of the movable plate and the pressure plate, respectively. When the pressure plate moves down, the movable plate is simultaneously retracted into the pressure plate, and the movable plate squeezes the second support rods and the second spring. When the pressure plate moves up, the second spring resets, thus resetting the movable plate. One side of the movable plate extends out of the pressure plate to eject and remove the sheet metal parts adhering to the surface.

[0013] Preferably, an ejector block is fixedly installed at the bottom of the movable plate. The ejector block is set in a semi-circular shape. The movable plate can pass through the semi-circular ejector block so that the edge of the sheet metal part is subjected to uniform force during the ejection process, avoiding material damage or deformation due to force concentration.

[0014] The beneficial effects of this utility model are:

[0015] 1. During extrusion and stretching, the shrinkage of the feeding component does not affect the extrusion and stretching. After processing, when the pressure plate is lifted, the feeding component moves upward synchronously to lift the sheet metal part, which can facilitate and quickly unload the part, thereby improving the efficiency of sheet metal part processing. At the same time as the pressure plate is lifted, the ejector component ejects the sheet metal part synchronously to prevent the sheet metal part from sticking to the bottom of the pressure plate.

[0016] 2. When the pressure plate moves down, the moving plate is simultaneously retracted into the pressure plate, and the moving plate squeezes the second support rod and the second spring. When the pressure plate moves up, the second spring resets, thus resetting the moving plate. The moving plate extends out of the pressure plate on one side to push out and remove the sheet metal parts adhering to the surface. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rapid feeding mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the feeding assembly structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the ejection assembly structure of this utility model.

[0021] In the diagram: 1. Base; 11. First hydraulic cylinder; 12. Stretching plate; 13. Support frame; 2. Second hydraulic cylinder; 21. Pressure plate; 3. Quick unloading mechanism; 31. Movable groove; 32. Unloading assembly; 321. Movable plate; 322. Rubber wheel; 323. First support rod; 324. First spring; 325. Movable frame; 326. Conveyor belt; 33. Ejection assembly; 331. Moving plate; 332. Ejection block; 333. Second support rod; 334. Second spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In practical implementation: such as Figure 1-4 As shown, a stretching device for sheet metal processing includes: a base 1, a first hydraulic cylinder 11 fixedly installed inside the base 1, a stretching plate 12 fixedly installed on one side of the first hydraulic cylinder 11, and a pressure plate 21 provided on the top of the base 1; a rapid unloading mechanism 3, which is provided on one side of the base 1 for rapidly unloading the stretched sheet metal; wherein, the rapid unloading mechanism 3 includes two movable slots 31 formed on the surface of the base 1, each of the two movable slots 31 is provided with an unloading component 32, and one side of the pressure plate 21 is provided with... There is an ejector assembly 33, and a groove adapted to the stretching plate 12 is provided at the bottom of the pressure plate 21. It can cooperate to stretch the sheet metal part into the required shape. During extrusion and stretching, the shrinkage of the feeding assembly 32 does not affect the extrusion and stretching. After the processing is completed, when the pressure plate 21 is lifted, the feeding assembly 32 moves up synchronously to lift the sheet metal part, which can facilitate and quickly unload the part, thereby improving the efficiency of sheet metal processing. At the same time as the pressure plate 21 is lifted, the ejector assembly 33 simultaneously ejects the sheet metal part to prevent the sheet metal part from sticking to the bottom of the pressure plate 21.

[0024] like Figure 2 and Figure 3As shown, the feeding assembly 32 includes a movable plate 321 slidably installed inside the movable groove 31. Multiple rubber wheels 322 are rotatably mounted on the surface of the movable plate 321. Two first support rods 323 are provided at the bottom of the movable plate 321. One end of each first support rod 323 is slidably connected to the inner wall of the movable groove 31. A first spring 324 is sleeved on the outer side of each first support rod 323. When the pressure plate 21 moves downward, it simultaneously contacts the multiple rubber wheels 322, squeezing the multiple rubber wheels 322 and causing the movable plate 321 to move downward, simultaneously pushing the two first support rods 323 to move. Pressing the first spring 324 allows multiple rubber wheels 322 to retract, preventing interference with the stretching process. The feeding assembly 32 also includes a movable frame 325 slidably mounted inside the movable groove 31. A conveyor belt 326 is fixedly mounted on one side of the movable frame 325, extending out of the movable frame 325. The conveyor belt 326 is located at the bottom of the movable plate 321, and one side of the conveyor belt 326 contacts multiple rubber wheels 322. The other ends of the two first support rods 323 are fixedly connected to the bottom of the movable frame 325, and move synchronously when the movable plate 321 moves downward. The movable frame 325 is moved downwards to press the two corresponding first support rods 323. After stretching, the first spring 324 resets the movable frame 325, the movable plate 321, and the multiple rubber wheels 322 to lift the sheet metal part. At this time, the conveyor belt 326 rotates synchronously, driving the multiple rubber wheels 322 to rotate, thus conveying and unloading the sheet metal part, which is very convenient. The two movable grooves 31 are located on both sides of the stretching plate 12. The two ends of the first spring 324 are fixedly connected to the inner walls of the movable frame 325 and the adjacent movable groove 31, respectively. 1. When the two movable plates 321 drive the corresponding multiple rubber wheels 322 to move upward, they can contact and lift the sheet metal parts on both sides respectively, which can lift and unload the sheet metal parts more stably. A support frame 13 is fixedly installed on one side of the base 1, and a second hydraulic cylinder 2 is fixedly installed on one side of the support frame 13. One end of the second hydraulic cylinder 2 is fixedly connected to the top of the pressure plate 21. The pressure plate 21 can be driven by the second hydraulic cylinder 2 to press down and press the sheet metal parts. Then, in conjunction with the first hydraulic cylinder 11 to push the stretching plate 12 to lift, the sheet metal parts can be squeezed and stretched very conveniently.

[0025] like Figure 2 and Figure 4As shown, the ejector assembly 33 includes two movable plates 331 slidably mounted on the bottom of the pressure plate 21. Two second support rods 333 are fixedly mounted on the top of the movable plates 331. One end of each second support rod 333 is slidably connected to the inside of the pressure plate 21. A second spring 334 is sleeved on the outer side of each second support rod 333. Both ends of the second spring 334 are fixedly connected to the movable plates 331 and the inside of the pressure plate 21, respectively. When the pressure plate 21 moves downward, the movable plates 331 are simultaneously retracted into the pressure plate 21, and the movable plates 331 press against the second support rods 331. When the pressure plate 21 moves upward, the second spring 334 resets, thus resetting the moving plate 331. The pressure plate 21 extends out from one side of the moving plate 331 to eject and remove the sheet metal parts adhering to the surface. An ejection block 332 is fixedly installed at the bottom of the moving plate 331. The ejection block 332 is set in a semi-circular shape. The moving plate 331 can pass through the semi-circular ejection block 332, so that the edge of the sheet metal parts is subjected to uniform force during the ejection process, avoiding material damage or deformation due to force concentration.

[0026] In use, the pressure plate 21 can be driven by the second hydraulic cylinder 2 to press down and clamp the sheet metal part. Then, the first hydraulic cylinder 11 pushes the stretching plate 12 to lift, thus stretching the sheet metal part. A groove adapted to the stretching plate 12 is provided at the bottom of the pressure plate 21, allowing the sheet metal part to be stretched into the required shape. When the pressure plate 21 moves downward, it simultaneously contacts multiple rubber wheels 322, squeezing the rubber wheels 322 and causing the movable plate 321 to move downward, simultaneously pushing the two first support rods 323 to move. Squeezing the first spring 324 allows the multiple rubber wheels 322 to retract, preventing interference with the stretching process. When the movable plate 321 moves downward, it simultaneously drives the movable frame 325 downward, squeezing the corresponding two first support rods 323. After stretching is completed, the first... Spring 324 resets the movable frame 325, movable plate 321, and multiple rubber wheels 322 to lift the sheet metal part. At this time, the conveyor belt 326 rotates synchronously, driving the multiple rubber wheels 322 to rotate, which can transport and unload the sheet metal part, which is very convenient. When the pressure plate 21 moves down, the moving plate 331 is simultaneously retracted into the pressure plate 21, and the moving plate 331 squeezes the second support rod 333 and the second spring 334. When the pressure plate 21 moves up, the second spring 334 resets, which can reset the moving plate 331. The moving plate 331 extends out of the pressure plate 21 on one side to push out and remove the sheet metal part adhering to the surface. The moving plate 331 can be pushed out by the semi-circular ejector block 332, so that the edge of the sheet metal part is subjected to uniform force during the ejection process, avoiding material damage or deformation due to force concentration.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stretching device for sheet metal processing, characterized in that, include: A base (1) is provided with a first hydraulic cylinder (11) fixedly installed inside the base (1), a tension plate (12) is fixedly installed on one side of the first hydraulic cylinder (11), and a pressure plate (21) is provided on the top of the base (1). A quick unloading mechanism (3) is used to quickly unload the stretched sheet metal. The quick unloading mechanism (3) is located on one side of the base (1). The rapid feeding mechanism (3) includes two movable slots (31) on the surface of the base (1), each of which is provided with a feeding component (32), and a push-out component (33) is provided on one side of the pressure plate (21).

2. The stretching device for sheet metal processing according to claim 1, characterized in that: The feeding assembly (32) includes a movable plate (321) slidably installed inside the movable groove (31). Multiple rubber wheels (322) are rotatably installed on the surface of the movable plate (321). Two first support rods (323) are provided at the bottom of the movable plate (321). One end of each of the two first support rods (323) is slidably connected to the inner wall of the movable groove (31). A first spring (324) is sleeved on the outer side of the first support rod (323).

3. A stretching device for sheet metal processing according to claim 2, characterized in that: The feeding assembly (32) also includes a movable frame (325) that is slidably installed inside the movable groove (31). A conveyor belt (326) is fixedly installed on one side of the movable frame (325). One side of the conveyor belt (326) extends out of the movable frame (325). The conveyor belt (326) is located at the bottom of the movable plate (321), and one side of the conveyor belt (326) is in contact with multiple rubber wheels (322). The other ends of the two first support rods (323) are fixedly connected to the bottom end of the movable frame (325).

4. A stretching device for sheet metal processing according to claim 3, characterized in that: The two movable slots (31) are located on both sides of the tension plate (12), and the two ends of the first spring (324) are fixedly connected to the movable frame (325) and the inner wall of the adjacent movable slot (31).

5. A stretching device for sheet metal processing according to claim 1, characterized in that: A support frame (13) is fixedly installed on one side of the base (1), and a second hydraulic cylinder (2) is fixedly installed on one side of the support frame (13). One end of the second hydraulic cylinder (2) is fixedly connected to the top of the pressure plate (21).

6. A stretching device for sheet metal processing according to claim 1, characterized in that: The ejection assembly (33) includes two movable plates (331) slidably mounted on the bottom of the pressure plate (21). Two second support rods (333) are fixedly mounted on the top of the movable plates (331). One end of each of the two second support rods (333) is slidably connected to the inside of the pressure plate (21). A second spring (334) is sleeved on the outside of the second support rod (333). The two ends of the second spring (334) are fixedly connected to the inside of the movable plate (331) and the pressure plate (21), respectively.

7. A stretching device for sheet metal processing according to claim 6, characterized in that: A push-out block (332) is fixedly installed at the bottom of the movable plate (331), and the push-out block (332) is set in a semi-circular shape.

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