Method for increasing the speed of a press for a draw die and a progressive die

Abstract

The application discloses a method for improving stamping speed of a die and a progressive die, and comprises a plurality of stamping stations of progressive dies, wherein the progressive die comprises an upper die, a lower die, a positioning device, a guide pin, a material floating device and a material unloading device. The shape structure of a stamping workpiece in a continuous stamping process is reformed, the stamping stroke is shortened, the stroke of the material floating device and the material unloading device of the die is shortened, the strength of a material lifting rod is increased, a fixed positioning pipe is arranged to perform profile positioning, and the interference position of the shortest stroke of the high-speed die is removed, so that the stamping speed is improved, the production efficiency is high, and the product quality is ensured.

Description

Technical Field

[0001] This invention relates to the field of stamping die equipment technology, specifically to a method for increasing the stamping speed of a die and a progressive die. Background Technology

[0002] In current stamping die processing, in order to reduce production costs while ensuring the quality of stamped parts, the external dimensions of the stamped parts at each station of the stamping process affect the stamping stroke. The long stroke of the material floating device and unloading device of the die prevents high-speed stamping, resulting in long production time and low efficiency. Simply reducing the stroke will cause interference in the entire die stamping process, leading to product quality problems during high-speed processing. The workpiece is prone to deformation due to inaccurate positioning during high-speed stamping. The die device is not strong enough to withstand the impact force of high-speed stamping, making the die easily damaged and requiring frequent die replacements, increasing production costs. Furthermore, multiple transfers are required, resulting in low processing efficiency and failing to meet the demands of high-speed processing and large-volume production of stamped parts.

[0003] Current methods for improving high-speed stamping production do not address the issue of modifying the workpiece shape to shorten the stroke, preventing high-speed stamping. Furthermore, the lack of continuous die processing results in insufficient strength in the die's material floating and unloading devices, die structure, and lifting rods. These factors negatively impact the quality of stamped products, leading to low production efficiency and substandard quality. Summary of the Invention

[0004] The purpose of this invention is to provide a method for increasing the stamping speed of a die and a progressive die. By modifying the shape and structure of the stamped workpiece in the stamping process, the stamping stroke is shortened, as are the strokes of the die's material lifting device and unloading device. To meet the requirements of high-speed production, improvements are made to the strength of the lifting rod, the fixed positioning tube, and the removal of interference positions at the shortest stroke of the high-speed die. Furthermore, high-speed processing of the progressive die prevents the workpiece from falling off at the bottom. This improves high-speed stamping production, increases production efficiency, and ensures product quality.

[0005] The present invention is implemented as follows: a method for increasing the stamping speed of a die and a progressive die, including an upper die, a lower die, a material floating device and a material unloading device, wherein the workpiece is stamped by the progressive die;

[0006] The specific steps of the method for increasing the stamping speed of the die are as follows:

[0007] S1: Modify the workpiece stamping die at each station of the continuous mold to shorten the workpiece stroke.

[0008] S2: Then, the stamping shape of the corresponding upper and lower dies is changed to meet the requirements of workpiece shaping modification, thereby shortening the stamping workpiece stroke;

[0009] S3: Based on the stamping shape of the workpiece, shorten the stroke distance of the float block in the float device of the progressive die;

[0010] S4: Shorten the unloading plate stroke distance of the unloading plate device;

[0011] S5: Based on the stamping shape of the workpiece, and at the limit positions of the floating block, guide pin and stripper plate stroke, cut off the interference position at the corresponding upper or lower die position.

[0012] S6: Then, the lower mold of the fixed workpiece with shortened stroke is set according to the shape of the workpiece, and the tube position or contour positioning is set;

[0013] S7: The lifting rod of the stamping die is widened and thickened to withstand the impact force of high-speed stamping and prevent deformation of the die or workpiece;

[0014] S8: After the workpiece undergoes a continuous stamping process, the burrs formed by the die stamping reverse the direction, and the burrs slide out and fall off.

[0015] S9: The final workpiece is formed and then removed from the bottom, which is used to reduce the time for the workpiece to be ejected and slid out, and is a drop forming production process.

[0016] A further solution is to reverse the burr stamping of the workpiece to improve the stamping efficiency of the die.

[0017] A further solution is to have the workpiece slide out of the mold from the bottom instead of sliding out horizontally during the mold process, in order to reduce processing time.

[0018] A further embodiment is a progressive die for increasing the stamping speed of a die, comprising a progressive die with multiple stamping stations, wherein the progressive die includes an upper die, a lower die, a positioning device, a guide pin, a material floating device, and a material unloading device;

[0019] The upper and lower die stamping shapes correspond to the workpiece shapes in each station of the stamping process;

[0020] The stroke of the floating device, unloading device and guide pin is shortened, and the strength of the lifting rod in the floating device is increased;

[0021] The positioning device is located on the upper and lower dies to position the workpiece, and the strength of the positioning device can withstand the stamping force of the high-speed stamping of the die;

[0022] The unloading device is equipped with a reverse punching burr removal device and a waste material sliding device.

[0023] A further embodiment is that the positioning device establishes a pipe position and / or positioning at each work station.

[0024] A further embodiment is that the tube position includes a positioning pin, a fixing stop pin, a positioning block, and a fixing clamp to prevent the material sheet from sliding when the stripper plate closes with the lower die.

[0025] A further embodiment is that the positioning includes workpiece contour positioning, and the lower mold is provided with a positioning element that conforms to the shape of the workpiece.

[0026] A further embodiment is that the final station of the unloading device is equipped with a sliding device for moving and sliding out the waste material.

[0027] A further embodiment is that the final station of the unloading device is equipped with a burr reverse punch for burr reverse punching, which is used for the workpiece to slide out and fall.

[0028] A further solution is to increase the width and thickness of the lifting rod in the floating material device to accommodate the high-speed and high-pressure stamping of the stamping die.

[0029] Compared with the prior art, the advantages of this invention are: by modifying the shape and structure of the stamped workpiece in the progressive die stamping process, the stamping stroke is shortened, and the stroke of the die floating device and the unloading device is also shortened. To meet the requirements of high-speed production, this invention modifies the stamping shape, strengthens the lifting rod, fixes the positioning tube, and removes the most...

[0030] The short-stroke interference position, coupled with high-speed processing using continuous stamping dies, prevents workpieces from falling off at the bottom. This improves high-speed stamping production efficiency while ensuring product quality, offering the following benefits:

[0031] 1. By using progressive die process, the stamping workpiece at each station of progressive die is modified in shape, that is, the shape of the upper and lower dies of the corresponding die is changed. After stamping, the stamping stroke of each station of progressive die is shortened, high-speed stamping is achieved, and the efficiency of automatic processing is improved.

[0032] 2. The continuous die of the present invention has a shortened stroke for the floating device, guide pin and unloading device at each station, and the corresponding lifting rod has a shortened stamping stroke, enabling automated high-speed production;

[0033] 3. The contour positioning of the continuous die positioning device of the present invention enhances the production stability of high-speed stamping, and improves the width, thickness and strength of the lifting rod, thus ensuring the quality requirements of the workpiece produced by high-speed stamping.

[0034] This invention modifies the continuous die process to shorten the stamping stroke of the workpiece. By shortening the stamping stroke at each station of the continuous die, and configuring positioning devices and stamping lifting rods for the corresponding dies, the automated high-speed production achieves high efficiency, reduces production costs, and ensures the quality requirements of the stamped workpieces during the stamping production process. Attached Figure Description

[0035] Figure 1 is a schematic diagram of the steps of the method for continuously increasing the stamping speed of the die according to the present invention;

[0036] Figure 2 is a schematic diagram of the overall processing structure of the continuous mold according to an embodiment of the present invention;

[0037] Figure 3 is a schematic diagram of the structure of the progressive die molding modification according to an embodiment of the present invention;

[0038] Figure 4 is a schematic diagram of the shortened upper and lower die strokes after the stamping molding modification according to an embodiment of the present invention;

[0039] Figure 5 is a schematic diagram of the structure of the lower mold floating material device with shortened stroke and cut-off interference position according to an embodiment of the present invention;

[0040] Figure 6 is a schematic diagram of the shortened stroke structure of the floating material device, unloading device and guide pin according to an embodiment of the present invention;

[0041] Figure 7 is a schematic diagram of the burr reversal and workpiece bottom removal structure in an embodiment of the present invention;

[0042] Figure 8 is a three-dimensional schematic diagram of the overall structure of the stamping continuous die according to an embodiment of the present invention.

[0043] Attached Figure Labels

[0044] 1. Pipe position one; 2. Positioning pin; 3. Pipe position two; 4. Unloading plate one; 5. Contour positioning; 6. Unloading plate two; 7. Modified stamping shape; 8. Floating block one; 9. Floating block two; 10. Sliding device. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0046] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0047] Referring to Figures 1-8, a preferred embodiment of the present invention is a technical solution for improving the stamping speed of continuous die stamping for automobile seats.

[0048] This invention discloses a method for increasing the stamping speed of a die and a progressive die, comprising an upper die, a lower die, a material float device, and a material unloading device, wherein the workpiece is stamped by the progressive die; the specific steps of the method for increasing the stamping speed of a die are as follows:

[0049] S1: Modify the workpiece stamping die at each station of the continuous die to shorten the workpiece stroke;

[0050] S2: Then, the stamping shape of the corresponding upper and lower dies is changed to meet the requirements of workpiece shaping modification, thereby shortening the stamping workpiece stroke;

[0051] S3: Based on the stamping shape of the workpiece, shorten the stroke distance of float block 8 or float block 9 in the float device of the progressive die;

[0052] S4: In the embodiment, the travel distance of the unloading plate 4 or the unloading plate 6 of the unloading plate device is shortened;

[0053] S5: Based on the stamping shape of the workpiece, and at the limit positions of the stroke of float block 18 or float block 29, guide pin and stripper plate 14 or stripper plate 26, cut off the interference position at the corresponding upper or lower die position.

[0054] S6: Then, in the mold of the fixed workpiece with shortened stroke, set tube position 1 and / or tube position 2 or contour positioning 5 according to the shape of the workpiece;

[0055] S7: The lifting rod of the stamping die is widened and thickened to withstand the impact force of high-speed stamping and prevent deformation of the die or workpiece;

[0056] S8: After the workpiece undergoes a continuous stamping process, the burrs formed by the die stamping reverse the direction, and the burrs slide out and fall off.

[0057] S9: The final workpiece is formed and then removed from the bottom, which is used to reduce the time for the workpiece to be ejected and slid out, and is a drop forming production process.

[0058] By improving as shown in Figure 2, the stroke of the lower die "floating block 1 8 or floating block 2 9" at positions 8 and 9 in the LAYOUT is changed from 60mm to 35mm.

[0059] By making improvements as shown in Figure 2, the stroke of the upper mold "ejector plate 1 4 or ejector plate 2 6" at point 6 in the LAYOUT was changed from 40mm to 28mm.

[0060] By improving the part dropping method at point 10 in the LAYOUT as shown in Figure 2, the production stamping speed of 60 times per minute is more guaranteed.

[0061] By improving the seven bends in the layout shown in Figure 2, each workstation can be designed to lift the material, reducing belt sway during high-speed production. This makes achieving a production speed of 60 cycles more reliable.

[0062] Furthermore, the burrs on the workpiece are stamped in the opposite direction to improve the stamping efficiency of the die.

[0063] Furthermore, in the mold-making process, the workpiece slides out of the mold from the bottom rather than sliding out by translation, in order to reduce the processing time.

[0064] Furthermore, progressive dies that increase stamping speed include progressive dies with multiple stamping stations. The progressive die includes an upper die, a lower die, a positioning device, a guide pin, a material floating device, and a material unloading device.

[0065] Figure 4 is a schematic diagram of the structure after the stamping shape modification of the present invention, in which the stroke of the upper and lower dies is shortened by 2mm. The stamping shapes of the upper and lower dies correspond to the workpiece shape in each station of the stamping process. To change the stroke of the upper die "ejector plate 1 4 or ejector plate 2 6" from 40mm to 28mm, it is necessary to modify the shape of two stamping processes. After the shape modification, the stroke of the upper and lower dies is shortened by 2mm.

[0066] Figure 5 shows a schematic diagram of the structure of the lower die floating device in this embodiment of the invention, with shortened stroke and removal of interference positions. The stroke of the lower die floating block 8 or floating block 9 is shortened from 60mm to 35mm, with only a 3.9mm stop being the minimum stroke space. Furthermore, a lifting rod must be added to prevent the feeding process from dropping downwards and interfering with the feeding.

[0067] Figure 6 shows a schematic diagram of the shortened stroke structure of the floating material device, unloading device, and guide pin in an embodiment of the present invention. The stroke of the floating material device, unloading device, and guide pin is shortened. The upper mold is 36.5 mm higher, minus the 9.2 mm recess of the material strip, resulting in 27.3 mm. The guide pin extension is 28 mm, thus shortening the stroke of the guide pin.

[0068] The positioning device is located on the upper and lower dies to position the workpiece, and the strength of the positioning device can withstand the stamping force of the high-speed stamping of the die;

[0069] The strength of the lifting rod in the floating material device is improved to meet the needs of high-speed continuous die stamping production. The unloading device is equipped with a reverse stamping burr and waste material sliding device.

[0070] Furthermore, the positioning device establishes pipe position 1 and / or pipe position 3 and / or positioning at each work station.

[0071] Furthermore, the tube position (tube position 1 and / or tube position 2) includes a positioning pin 2, a fixing stop pin, a positioning block and a fixing clamp to prevent the sheet from sliding when the stripper plate closes with the lower die.

[0072] Furthermore, the positioning includes workpiece contour positioning 5, where the lower mold is provided with a shape positioning groove that fits the shape of the workpiece, thereby fixing and positioning the workpiece in shape.

[0073] Furthermore, the final station of the unloading device is equipped with a sliding device for moving and sliding out the waste material.

[0074] Furthermore, as shown in Figure 7, the last station of the unloading device is equipped with a burr reverse punch for burr reverse punching and for the workpiece to slide out and fall.

[0075] Furthermore, the width and thickness of the lifting rod in the floating material device are increased to accommodate the pressure and speed of high-speed stamping of the stamping die.

[0076] Compared with the prior art, the advantages of this invention are: by modifying the shape and structure of the stamped workpiece in the progressive die stamping process, the stamping stroke is shortened, and the stroke of the die floating device and the unloading device is also shortened. To meet the requirements of high-speed production, the stamping shape 7 is modified, the strength of the lifting rod is improved, and the fixed positioning tube position (tube position 1 and / or) is fixed.

[0077] Or, in pipe position 2 (3), the interference position of the shortest stroke of the high-speed die is removed, and the workpiece is dropped off during high-speed processing of continuous stamping dies. This improves high-speed stamping production, increases production efficiency, and ensures product quality, with the following beneficial effects:

[0078] 1. By using progressive die process, the stamping workpiece at each station of progressive die is modified in shape, that is, the shape of the upper and lower dies of the corresponding die is changed. After stamping, the stamping stroke of each station of progressive die is shortened, high-speed stamping is achieved, and the efficiency of automatic processing is improved.

[0079] 2. The continuous mold of the present invention shortens the stroke of the floating device, guide pin and unloading device unloading plate 4 or unloading plate 6 at each station, and the corresponding lifting rod shortens the stamping stroke, enabling automated high-speed production;

[0080] 3. The contour positioning 5 of the continuous die positioning device of the present invention enhances the production stability of high-speed stamping, and improves the width, thickness and strength of the lifting rod, thus ensuring the quality requirements of the workpiece produced by high-speed stamping.

[0081] This invention modifies the continuous die process to shorten the stamping stroke of the workpiece. By shortening the stamping stroke at each station of the continuous die, and configuring positioning devices and stamping lifting rods for the corresponding dies, the automated high-speed production achieves high efficiency, reduces production costs, and ensures the quality requirements of the stamped workpieces during the stamping production process.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method of increasing the press speed of a draw mold characterized by, Includes an upper die, a lower die, a material floatation device, and a material unloading device; the workpiece is formed by continuous die stamping. The specific steps of the method for increasing the stamping speed of the die are as follows: S1: Modify the workpiece stamping die at each station of the continuous die to shorten the workpiece stroke. S2: Then, the stamping shape of the corresponding upper and lower dies is changed to meet the requirements of workpiece shaping modification, thereby shortening the stamping workpiece stroke; S3: Based on the stamping shape of the workpiece, shorten the stroke distance of the float block in the float device of the progressive die; S4: Shorten the unloading plate stroke distance of the unloading plate device; S5: Based on the stamping shape of the workpiece, and at the limit positions of the floating block, guide pin and stripper plate stroke, cut off the interference position at the corresponding upper or lower die position. S6: Then, the lower mold of the fixed workpiece with shortened stroke is used to set the tube position or contour positioning according to the shape of the workpiece; S7: The lifting rod of the stamping die is widened and thickened to withstand the impact force of high-speed stamping and prevent deformation of the die or workpiece; S8: After continuous stamping, the burrs formed by the die stamping reverse and slide out and fall off. S9: Finally, the workpiece is formed and detached, reducing the time for the workpiece to be ejected and slid out.

2. The method of increasing the press speed of an elevator mold as defined in claim 1, wherein, The burrs on the workpiece are stamped in the opposite direction to improve the stamping efficiency of the die.

3. The method of increasing the press speed of an elevator mold as defined in claim 1, wherein, In S9, the workpiece is removed from the mold by dropping off the bottom, rather than sliding out horizontally, in order to reduce processing time.

4. A progressive die formed by the method of increasing the die press speed according to any one of claims 1 to 3, characterized by, The continuous die includes an upper die, a lower die, a positioning device, a guide pin, a material floating device, and a material unloading device; The upper and lower die stamping shapes correspond to the workpiece shapes in each station of the stamping process; The stroke of the floating device, unloading device and guide pin is shortened, and the strength of the lifting rod in the floating device is increased; The positioning device is located on the upper and lower dies for positioning the workpiece, and the strength of the positioning device can withstand the stamping force of the high-speed stamping of the die. The positioning device sets up tube positions and / or positioning at each station. The tube position includes positioning pins, fixed stop pins, positioning blocks and fixed clamps to prevent the material sheet from sliding when the stripper plate closes with the lower die. The positioning includes workpiece contour positioning. The lower die is provided with positioning that fits the shape of the workpiece. The unloading device is equipped with a reverse punching burr and a waste material sliding device. The last station of the unloading device is equipped with a sliding device for the movement and sliding out of waste material. The last station of the unloading device is also equipped with a burr reverse punch for reverse punching of burrs and for the workpiece to slide out and fall. The width and thickness of the lifting rod in the floating device are increased to accommodate the pressure and speed of high-speed stamping of the stamping die.

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