A method of processing for producing an embossed metal sheet

Abstract

The application discloses a processing method for producing an embossed metal sheet, and aims to provide a processing method for producing an embossed metal sheet which has the advantages of increasing the cutting buffering effect of the metal sheet, increasing the cutting stability, high practicability and simple structure. The technical scheme is as follows: the processing method is through the following steps: sheet traction, sheet flattening, roller embossing, roller edge folding, sheet cutting and assembling. When the sheet is processed, the sheet is first flattened to improve the flatness of the sheet, ensure the uniformity of stress during embossing, and has the advantages of high stability and simple structure. The application is suitable for the technical field of metal sheet embossing.

Description

TECHNICAL FIELD

[0001] The present application relates to a metal sheet embossing technical field, more particularly, it relates to a processing method for producing embossed metal sheet. BACKGROUND

[0002] With the continuous improvement of people's living standards, outdoor sports are often a choice for people, and after outdoor sports, people often need to have a meal or rest, so they need leisure tables and chairs and other products. Traditional seats are made of wood materials, but wood materials are not conducive to environmental protection, and their service life is not as long as that of metal materials, which is not conducive to outdoor use.

[0003] When processing the metal sheet, traction, embossing, edge folding, cutting and other steps are needed, but after edge folding, the strength of the metal sheet will increase linearly, and when cutting, the rigid structure is too strong, which can easily cause the collapse of the metal sheet when the metal sheet is subjected to instantaneous force, affecting the processing, and also increasing the burden of the cutting tool, affecting the service life. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a processing method for producing embossed metal sheet, which can increase the cutting buffer effect of the metal sheet, increase the cutting stability, has strong practicality and simple structure.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a processing method for producing embossed metal sheet, the processing method of the metal embossed sheet specifically comprises the following steps, S1, sheet traction: placing the wound sheet on the placing rack of the feeder, and pulling the sheet through the traction roller to enter the next step;

[0006] S2, sheet flattening: pulling the sheet to the sheet press through the traction roller, and flattening the sheet through a plurality of flattening rollers, the traction interval of the flattening operation is between 3-5s, and the pressure of the flattening roller is between 1000N-2000N;

[0007] S3, roller embossing: after the flattening operation is completed, the sheet is pulled into the embossing machine through the traction of the traction roller, and the sheet is embossed by the roller, and the pressure during embossing is between 3000N-3500N;

[0008] S4, roller edge folding: pulling the embossed sheet to the edge folding machine through the traction of the traction roller, and folding the sheet through the edge folding roller of the edge folding machine, the roller edge folding machine is a plurality of edge folding rollers forming different edge folding states;

[0009] S5, sheet cutting: entering the cutting machine through the traction of the traction roller, and cutting the folded sheet to a fixed length;

[0010] S6, assembling: the cut sheet material is combined and spliced with the leisure table semi-finished product to be processed,

[0011] The traction roller is arranged at the feeding port of the flattening machine, the embossing machine, the flanging machine and the cutting machine

[0012] The present application further provides that the cutting machine in step S5 comprises a rack, a workbench arranged on the rack, a mounting frame arranged on the workbench, an upper shearing body arranged on the mounting frame, a lower shearing body arranged on the rack and matched with the upper shearing body, and a pressure buffering mechanism arranged between the rack and the lower shearing body.

[0013] The present application further provides that the pressure buffering mechanism comprises a buffering plate arranged below the lower shearing body, left and right hydraulic cavities arranged between the buffering plate and the workbench and arranged in parallel with each other, a force-bearing piston arranged between the buffering plate and the left hydraulic cavity, a driven piston arranged between the buffering plate and the right hydraulic cavity, a connecting rod connected between the force-bearing piston and the driven piston in sequence, and a buffering assembly arranged between the left and right hydraulic cavities and the force-bearing and driven pistons, and the force-bearing and driven pistons are connected with the buffering plate.

[0014] The present application further provides that the buffering assembly comprises a fixed disc arranged on the rod side of the force-bearing piston, a first oil pressure flow channel penetrating through the piston rod of the force-bearing piston, a second oil pressure flow channel penetrating through the piston rod of the driven piston, a connecting oil channel arranged on the connecting rod and connected with the first and second oil pressure flow channels in sequence, a transverse oil channel arranged on the fixed disc and communicated with the first oil pressure flow channel, and a vertical oil channel arranged on the pressure plate and arranged perpendicularly with the transverse oil channel, an oil outlet is arranged on the left hydraulic cavity, the vertical oil channel is communicated with the oil outlet, a one-way valve is arranged on the inner wall of the rodless cavity of the right hydraulic cavity, the one-way valve is configured to be in an open state when the driven piston is away from the one-way valve, and in a closed state when the driven piston is close to the one-way valve, the one-way valve is connected with an oil inlet cavity, and the oil outlet is connected with an oil return cavity.

[0015] The present application further provides that the buffering assembly further comprises a reset assembly arranged in the left and right hydraulic cavities and used for resetting the force-bearing and driven pistons, and the left hydraulic cavity has hydraulic oil in the rod cavity, and the right hydraulic cavity has hydraulic oil in the rodless cavity.

[0016] The present application further provides that a plurality of sliding cavities are arranged on the outer edge surface of the fixed disc along the radial direction of the fixed disc, each sliding cavity is arranged in the transverse oil channel, a tension spring and a slidable sliding block are arranged in the sliding cavity, and the sliding block slides towards the axis direction of the pressure plate under the tension of the tension spring.

[0017] The present application further provides that the reset assembly comprises a reset spring arranged in the rodless cavities of the left and right hydraulic cavities.

[0018] The application is further provided that the specific control steps of the pressure buffering mechanism are as follows: S40, when the buffering plate is stressed, the stress is borne by the stress piston and the driven piston and pressure is applied in the left and right hydraulic cavities;

[0019] S41, the return spring forms the first buffering, after the hydraulic oil in the right hydraulic cavity is stressed, the hydraulic oil cannot be discharged through the one-way valve, then the hydraulic oil passes through the second oil pressure flow channel, the connecting oil channel and the second oil pressure flow channel, and enters the rod cavity of the left hydraulic cavity through the transverse oil channel and the vertical oil channel, and then enters the oil return cavity through the oil outlet, forming a loop;

[0020] S42, when the instantaneous force of the buffering plate is too large, the hydraulic oil will be divided in the transverse oil channel, part of the oil pressure will impact the sliding block, the sliding block will rub against the left hydraulic cavity, forming the second buffering;

[0021] S43, after the buffering plate is stressed, the stress piston will be reset under the action of the return spring, the one-way valve will be filled with oil again, and the hydraulic oil in the rod cavity of the left hydraulic cavity will also be discharged from the oil outlet;

[0022] S44, repeat steps S40-S43.

[0023] By adopting the above technical scheme, the beneficial effects are as follows: 1. By adopting the processing method through the following steps: sheet material traction, sheet material flattening, roller embossing, roller edge folding, sheet material cutting and assembly, when the sheet material is processed, the sheet material is first flattened to improve the flatness of the sheet material, ensure the uniformity of the stress during embossing, and the structure is simple and stable;

[0024] 2. Because the sheet material is cut after being folded, the rigidity of the sheet material is strong during cutting, and the sheet material may be broken during cutting. In order to alleviate the pressure on the sheet material during cutting, the pressure buffering mechanism between the rack and the lower cutting body is used, so that the force borne by the lower cutting body in the stress moment is relatively small, which greatly reduces the damage to the sheet material and the lower cutting body, and increases the overall service life;

[0025] 3. Further, the pressure buffering mechanism is provided with a buffering plate arranged below the lower cutting body, left and right hydraulic cavities arranged between the buffering plate and the workbench and parallel to each other, a stress piston arranged between the buffering plate and the left hydraulic cavity, a driven piston arranged between the buffering plate and the right hydraulic cavity, a connecting rod connected between the stress piston and the driven piston in sequence, and a buffering assembly arranged between the left and right hydraulic cavities and the stress piston and the driven piston. The stress piston and the driven piston are connected with the buffering plate. By connecting the buffering plate with the left and right hydraulic cavities and cooperating with the buffering assembly, an elastic buffering effect is achieved when the buffering plate is stressed in the moment, the stability is high, and the structure is simple.

[0026] 4、Further, the buffer assembly includes a fixed disc body arranged on the rod side of the force receiving piston, a first oil pressure flow channel penetrating the piston rod of the force receiving piston, a second oil pressure flow channel penetrating the piston rod of the driven piston, a connecting oil channel arranged on the connecting rod and sequentially connecting the first oil pressure flow channel and the second oil pressure flow channel, a transverse oil channel arranged on the fixed disc body and communicating with the first oil pressure flow channel, and a vertical oil channel arranged on the pressure disc and arranged perpendicularly to the transverse oil channel, an oil outlet is arranged on the left hydraulic chamber, the vertical oil channel communicates with the oil outlet, a one-way valve is arranged on the inner wall of the rodless chamber on the right hydraulic chamber, the one-way valve is configured such that when the driven piston moves away from the one-way valve, the oil path is a passage; otherwise, the oil path is a break, the one-way valve is connected with an oil inlet chamber, the oil outlet is connected with an oil return chamber, after the buffer plate is stressed, because the hydraulic oil in the right hydraulic chamber is stressed, the one-way valve cannot discharge oil, then the hydraulic oil passes through the second oil pressure flow channel, the connecting oil channel and the second oil pressure flow channel, and enters the rod chamber of the left hydraulic chamber through the transverse oil channel and the vertical oil channel, and then enters the oil return chamber through the oil outlet, forming a loop.

[0027] 5、The outer edge surface of the fixed disc body is provided with a plurality of sliding cavities arranged along the radial direction of the fixed disc body, each sliding cavity is arranged in the transverse oil channel, the sliding cavity is provided with a tension spring and a slidable sliding block, the sliding block slides towards the axis direction of the pressure disc under the tension of the tension spring, by adopting the above structure, the sliding cavities are arranged, and the sliding block structure is matched, when an oil pressure impact is received, the sliding block forms a friction force on the inner wall of the cavity, thereby reducing the impact, greatly protecting the structure of the sheet material, and forming secondary buffering protection, which is practical and simple in structure. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A flowchart of an embodiment of the processing method for producing the embossed metal sheet according to the present application.

[0029] Figure 2 A structure diagram of a cutting machine in an embodiment of the processing method for producing the embossed metal sheet according to the present application.

[0030] Figure 3 An embodiment of the processing method for producing the embossed metal sheet according to the present application Figure 2 An enlarged schematic diagram of the structure at A in the embodiment.

[0031] Fig. 1, frame; 10, workbench; 2, mounting frame; 20, upper shearing body; 21, lower shearing body; 3, buffer plate; 40, left hydraulic chamber; 401, force receiving piston; 402, fixed disc body; 403, first oil pressure flow channel; 404, transverse oil channel; 405, vertical oil channel; 406, oil outlet; 41, right hydraulic chamber; 410, driven piston; 411, second oil pressure flow channel; 42, connecting rod; 420, connecting oil channel; 43, sliding chamber; 430, tension spring; 431, sliding block; 5, one-way valve; 6, return spring; 7, oil inlet chamber; 8, oil return chamber. DETAILED DESCRIPTION

[0032] REFERENCE Figures 1 to 3 Further description is made to an embodiment of the processing method for producing the embossed metal sheet.

[0033] For ease of description, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to describe the relationship of one element or feature to another element or feature shown in the drawings. It should be understood that the spatial terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as being on the other element or feature "lower" would then be oriented on the other element or feature "upper". Thus, the exemplary term "lower" can encompass both an upper and lower orientation. The spatially relative terms used herein are in reference to the device in the drawings as placed in the orientation shown in the drawings. It is understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0034] Moreover, relational terms such as "first" and "second", and the like can be used solely to distinguish one element from another element without necessarily requiring or implying any actual relationship or order between or among the elements.

[0035] A processing method for producing an embossed metal sheet, the processing method for producing the embossed metal sheet specifically comprises the following steps: S1, sheet traction: placing the wound sheet on the placing rack of the feeding machine, and tractioning the sheet by the traction roller to enter the next step;

[0036] S2, sheet flattening: tractioning the sheet to the sheet press by the traction roller, and flattening the sheet by a plurality of flattening rollers, the traction interval of the traction roller in the flattening operation being between 3-5s, and the pressure of the flattening roller being between 1000N-2000N;

[0037] S3, roller embossing: after the flattening operation is completed, entering the embossing machine by the traction of the traction roller, and performing roller embossing on the sheet, the pressure during embossing being between 3000N-3500N;

[0038] S4, roll edge folding: the embossed sheet is pulled to the edge folding machine under the traction of the traction roller, and edge folding is carried out under the edge folding roller of the edge folding machine; the roll edge folding machine is a plurality of edge folding rollers for forming different edge folding states;

[0039] S5, sheet cutting: the sheet after edge folding is cut to a fixed length by entering the cutting machine under the traction of the traction roller;

[0040] S6, assembly: the cut sheet is combined and spliced with the leisure table semi-finished product to be processed,

[0041] The traction roller is arranged at the inlet of the flattening machine, the embossing machine, the edge folding machine and the cutting machine. When the sheet is processed by the following steps: sheet traction, sheet flattening, roller embossing, roll edge folding, sheet cutting and assembly, the sheet is first flattened to improve the flatness of the sheet, ensure the uniformity of the stress during embossing, and has strong stability and simple structure.

[0042] The present application further provides that the cutting machine in step S5 includes a rack 1, a workbench 10 arranged on the rack 1, a mounting frame 2 arranged on the workbench 10, an upper shearing body 20 arranged on the mounting frame 2, a lower shearing body 21 arranged on the rack 1 and matched with the upper shearing body 20, and a pressure buffering mechanism arranged between the rack 1 and the lower shearing body 21. Because the sheet is cut after edge folding, the rigidity of the sheet is strong during cutting, which may cause the sheet to break during cutting. In order to alleviate the pressure on the sheet during cutting, the pressure buffering mechanism is arranged between the rack 1 and the lower shearing body 21, so that the force borne by the lower shearing body 21 is relatively small at the moment of force, greatly reducing the damage to the sheet and the lower shearing body 21, and increasing the overall service life.

[0043] The present application further provides that the pressure buffering mechanism includes a buffer plate 3 arranged below the lower shearing body 21, left and right hydraulic cavities 40 and 41 arranged between the buffer plate 3 and the workbench 10 and parallel to each other, a force receiving piston 401 arranged between the buffer plate 3 and the left hydraulic cavity 40, a driven piston 410 arranged between the buffer plate 3 and the right hydraulic cavity 41, a connecting rod 42 connected between the force receiving piston 401 and the driven piston 410 in sequence, a buffer assembly arranged between the left and right hydraulic cavities 41 and the force receiving piston 401 and the driven piston 410, and the force receiving piston 401 and the driven piston 410 are connected with the buffer plate 3.

[0044] The application is further provided that the buffer assembly comprises a fixed disc body 402 arranged on the rod side of the force receiving piston 401, a first oil pressure flow channel 403 penetrating the piston rod of the force receiving piston 401, a second oil pressure flow channel 411 penetrating the piston rod of the driven piston 410, a connecting oil channel 420 arranged on the connecting rod 42 and sequentially connected with the first oil pressure flow channel 403 and the second oil pressure flow channel 411, a transverse oil channel 404 arranged on the fixed disc body 402 and communicated with the first oil pressure flow channel 403, and a vertical oil channel 405 arranged on the pressure plate and vertically arranged with the transverse oil channel 404, the left hydraulic chamber 40 is provided with an oil outlet 406, the vertical oil channel 405 is communicated with the oil outlet 406, the right hydraulic chamber 41 is provided with a one-way valve 5 on the inner wall of the rodless cavity, the one-way valve 5 is configured to be open when the driven piston 410 is away from the one-way valve 5, and the oil circuit is closed when the driven piston 410 is close to the one-way valve 5, the one-way valve 5 is connected with an oil inlet cavity 7, the oil outlet 406 is connected with an oil return cavity 8, and the buffer assembly further comprises the fixed disc body 402 arranged on the rod side of the force receiving piston 401, the first oil pressure flow channel 403 penetrating the piston rod of the force receiving piston 401, the second oil pressure flow channel 411 penetrating the piston rod of the driven piston 410, the connecting oil channel 420 arranged on the connecting rod 42 and sequentially connected with the first oil pressure flow channel 403 and the second oil pressure flow channel 411, the transverse oil channel 404 arranged on the fixed disc body 402 and communicated with the first oil pressure flow channel 403, and the vertical oil channel 405 arranged on the pressure plate and vertically arranged with the transverse oil channel 404, the left hydraulic chamber 40 is provided with an oil outlet 406, the vertical oil channel 405 is communicated with the oil outlet 406, the right hydraulic chamber 41 is provided with a one-way valve 5 on the inner wall of the rodless cavity, the one-way valve 5 is configured to be open when the driven piston 410 is away from the one-way valve 5, and the oil circuit is closed when the driven piston 410 is close to the one-way valve 5, the one-way valve 5 is connected with an oil inlet cavity 7, the oil outlet 406 is connected with an oil return cavity 8, and the buffer plate 3 is stressed, the hydraulic oil in the right hydraulic chamber 41 is stressed, the one-way valve 5 cannot discharge oil, the hydraulic oil passes through the second oil pressure flow channel 411, the connecting oil channel 420 and the second oil pressure flow channel 411, and then enters the rod cavity of the left hydraulic chamber 40 through the transverse oil channel 404 and the vertical oil channel 405, and then enters the oil return cavity 8 through the oil outlet 406, thereby forming a loop, and ensuring that the buffer plate 3 is not stressed instantaneously when stressed, thereby greatly protecting the sheet.

[0045] The application is further provided that the buffer assembly further comprises a reset assembly arranged in the rodless cavities of the left hydraulic chamber 40 and the right hydraulic chamber 41 and used for resetting the force receiving and driven piston 410, the rod cavity of the left hydraulic chamber 40 contains hydraulic oil, and the rodless cavity of the right hydraulic chamber 41 contains hydraulic oil, and the reset assembly is further arranged to facilitate the resetting of the force receiving and driven piston 410 after being stressed and to supplement the hydraulic oil in the right hydraulic chamber 41 for the next buffering.

[0046] The outer edge surface of the fixed disc body 402 is provided with a plurality of sliding cavities 43 arranged along the radial direction of the fixed disc body 402, each sliding cavity 43 is arranged in the transverse oil channel 404, the sliding cavity 43 is provided with a tension spring 430 and a slidable sliding block 431, the sliding block 431 slides to the axis direction of the pressing disc under the tension of the tension spring 430, and further, the outer edge surface of the fixed disc body 402 is provided with a plurality of sliding cavities 43 arranged along the radial direction of the fixed disc body 402, each sliding cavity 43 is arranged in the transverse oil channel 404, the sliding cavity 43 is provided with a tension spring 430 and a slidable sliding block 431, the sliding block 431 slides to the axis direction of the pressing disc under the tension of the tension spring 430, by adopting the above structure, when the oil pressure impact is received, the sliding block 431 forms a friction force on the inner wall of the cavity, thereby reducing the impact, greatly protecting the structure of the sheet, and forming secondary buffering protection, and the utility is strong and the structure is simple.

[0047] The reset assembly includes a reset spring 6 arranged in the rodless cavity of the left and right hydraulic cavities 41.

[0048] The specific control steps of the pressure buffering mechanism are as follows, S40, when the buffering plate 3 is stressed, the stressed driven piston 410 is stressed and pressurized in the left and right hydraulic cavities 41;

[0049] S41, the reset spring 6 forms the first buffering, after the hydraulic oil in the right hydraulic cavity 41 is stressed, the one-way valve 5 cannot discharge oil, then the hydraulic oil passes through the second oil pressure flow channel 411, the connecting oil channel 420 and the second oil pressure flow channel 411, and enters the rod cavity of the left hydraulic cavity 40 through the transverse oil channel 404 and the vertical oil channel 405, and then enters the oil return cavity 8 through the oil outlet 406, to form a loop;

[0050] S42, when the instantaneous force of the buffering plate 3 is too large, the hydraulic oil will be shunted in the transverse oil channel 404, and part of the oil pressure will impact the sliding block 431, the sliding block 431 forms friction on the left hydraulic cavity 40, to form the second buffering;

[0051] S43, after the stress of the buffering plate 3 is over, the stressed driven piston is reset under the action of the reset spring 6, the one-way valve 5 is filled with oil again, and the hydraulic oil in the rod cavity of the left hydraulic cavity 40 is also discharged from the oil outlet 406;

[0052] S44, the steps S40-S43 are repeated.

[0053] By adopting the above method, the left and right hydraulic cavities 41 serve as the main buffer carrier, cooperate with the reset spring 6 to form the first step buffer effect, and the increased sliding cavity 43 structure further forms the secondary buffer effect between the sliding block 431 and the inner wall of the cavity when the oil pressure is too large, thereby improving the overall damping effect, being stable, and being simple in structure.

[0054] Moreover, after the upper damping body is stressed, the main and slave pistons are reset by the reset spring 6, the damping operation is facilitated next time, the stability is high, the oil inlet cavity 7 and the oil outlet cavity are communicated, the oil passage is formed, the practicality is high, and the structure is simple.

[0055] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and the person skilled in the art can make common changes and replacements within the technical scheme range of the present application, which should be included in the protection range of the present application.

Claims

1. A processing method for producing an embossed metal sheet, characterized by, The processing method of the embossed metal sheet specifically comprises the following steps: S1, sheet traction: placing the wound sheet on the placing rack of the feeder, and tractioning the sheet by the traction roller to enter the next step; S2, sheet flattening: tractioning the sheet to the sheet press by the traction roller, and flattening the sheet by the multiple sets of flattening rollers, the traction interval of the flattening operation being 3-5s, and the pressure of the flattening roller being 1000N-2000N; S3, roller embossing: after the flattening operation is completed, the sheet is tractioned to the embossing machine by the traction roller, and the sheet is roller embossed, the pressure being 3000N-3500N during embossing; S4, roller flanging: the sheet after embossing is tractioned to the flanging machine by the traction roller, and is flanged by the flanging roller of the flanging machine, the roller flanging machine being a plurality of flanging rollers forming different flanging states; S5, sheet cutting: the sheet after flanging is cut to a fixed length by the cutting machine under the traction of the traction roller; S6, assembly: combining and splicing the cut sheet with the leisure table semi-finished product to be processed, The traction roller is arranged at the feeding port of the flattening machine, the embossing machine, the flanging machine and the cutting machine; The cutting machine in step S5 comprises a rack (1), a workbench (10) arranged on the rack (1), a mounting rack (2) arranged on the workbench (10), an upper shearing body (20) arranged on the mounting rack (2), a lower shearing body (21) arranged on the rack (1) and matched with the upper shearing body (20), and a pressure buffering mechanism arranged between the rack (1) and the lower shearing body (21); The pressure buffering mechanism comprises a buffering plate (3) arranged below the lower shearing body (21), left and right hydraulic cavities (40) and (41) arranged between the buffering plate (3) and the workbench (10) and parallel to each other, a force receiving piston (401) arranged between the buffering plate (3) and the left hydraulic cavity (40), a driven piston (410) arranged between the buffering plate (3) and the right hydraulic cavity (41), a connecting rod (42) connected between the force receiving piston (401) and the driven piston (410) in sequence, and a buffering assembly arranged between the left and right hydraulic cavities (41) and the force receiving piston (401) and the driven piston (410), the force receiving and driven pistons (410) being connected with the buffering plate (3); The buffer assembly comprises a fixed disc body (402) arranged on the rod side of the force receiving piston (401), a first oil pressure flow channel (403) penetrating the piston rod of the force receiving piston (401), a second oil pressure flow channel (411) penetrating the piston rod of the driven piston (410), a connecting oil channel (420) arranged on the connecting rod (42) and sequentially connected with the first oil pressure flow channel (403) and the second oil pressure flow channel (411), a transverse oil channel (404) arranged on the fixed disc body (402) and communicated with the first oil pressure flow channel (403), and a vertical oil channel (405) arranged on the pressure plate and vertically arranged with the transverse oil channel (404), wherein the left hydraulic chamber (40) is provided with an oil outlet (406), the vertical oil channel (405) is communicated with the oil outlet (406), the right hydraulic chamber (41) is provided with a one-way valve (5) on the inner wall of the rodless chamber, the one-way valve (5) is configured to be open when the driven piston (410) is away from the one-way valve (5), and the oil path is closed when the driven piston (410) is close to the one-way valve (5), the one-way valve (5) is connected with an oil inlet chamber (7), and the oil outlet (406) is connected with an oil return chamber (8).

2. A processing method for producing an embossed metal sheet according to claim 1, characterized by, The buffer assembly further comprises a reset assembly arranged in the rodless chambers of the left hydraulic chamber (40) and the right hydraulic chamber (41) and used for resetting the force receiving and driven piston (410), the rod chamber of the left hydraulic chamber (40) contains hydraulic oil, and the rodless chamber of the right hydraulic chamber (41) contains hydraulic oil.

3. A method of processing for producing an embossed metal sheet according to claim 1, characterized in that, A plurality of sliding cavities (43) are arranged on the outer edge surface of the fixed disc body (402) in the radial direction of the fixed disc body (402), each sliding cavity (43) is arranged in the transverse oil channel (404), the sliding cavity (43) contains a tension spring (430) and a slidable sliding block (431), and the sliding block (431) slides to the axis direction of the pressure plate under the tension of the tension spring (430).

4. A processing method for producing an embossed metal sheet according to claim 2, characterized by, The reset assembly comprises a reset spring (6) arranged in the rodless chambers of the left and right hydraulic chambers (41).

5. A method of processing for producing an embossed metal sheet according to claim 1, characterized in that, The specific control steps of the pressure buffer mechanism are as follows, S40, when the buffer plate (3) is stressed, the force receiving and driven piston (410) is stressed and pressurized in the left and right hydraulic chambers (41); S41, the reset spring (6) forms the first buffer, after the hydraulic oil in the right hydraulic chamber (41) is stressed, the one-way valve (5) cannot discharge oil, then the hydraulic oil passes through the second oil pressure flow channel (411), the connecting oil channel (420) and the second oil pressure flow channel (411), and enters the rod chamber of the left hydraulic chamber (40) through the transverse oil channel (404) and the vertical oil channel (405), and then enters the oil return chamber (8) through the oil outlet (406), thereby forming a loop; S42, when the instantaneous force of the buffer plate (3) is too large, the hydraulic oil will be shunted in the transverse oil channel (404), part of the oil pressure will impact the sliding block (431), the sliding block (431) will rub the left hydraulic chamber (40), and the second buffer is formed. S43, after the buffer plate (3) is stressed, the stress, the piston will be reset under the action of the reset spring (6), the one-way valve (5) will enter the oil again, and the hydraulic oil of the left hydraulic chamber (40) with the rod cavity will also be discharged from the oil outlet (406); S44, repeat steps S40-S43.

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