Stainless steel cold-rolled sheet forming and trimming device and method

Abstract

The invention relates to the technical field of stainless steel cold-rolled sheet trimming, in particular to a stainless steel cold-rolled sheet forming and trimming device and method.The stainless steel cold-rolled sheet forming and trimming device comprises a base, two mounting frames, a locking mechanism, a rolling correction mechanism, a transverse leveling mechanism and two flattening mechanisms. Through cooperation of the rolling correction mechanism, the two flat pressing mechanisms and the transverse leveling mechanism, rolling correction of a thin plate, straightening and leveling of the thin plate in the length direction and the width direction and supporting of the trimming position are achieved; therefore, the problems that the thin plate deforms in the moving process, the edge cutting position of the thin plate is not in the horizontal state and the supporting force of the edge cutting position is insufficient, so that the edge cutting straightness of the thin plate is reduced, and the edge cutting quality is poor are solved. And the mounting frame, the locking mechanism, the rolling correction mechanism, the two flattening mechanisms and the transverse leveling mechanism jointly form a working table of a triangular structure, the sheet correction and supporting stability is improved, and the trimming quality is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of trimming of cold-rolled stainless steel thin plates, and specifically provides a forming and trimming device and method for cold-rolled stainless steel thin plates. Background Art

[0002] Cold-rolled stainless steel thin plates are stainless steel plates made through cold-rolling processes, with characteristics such as high surface finish, good dimensional accuracy, and excellent mechanical properties. They are widely used in fields such as industry, construction, and household appliances. Their production processes mainly include hot-rolling, annealing, pickling, cold-rolling, and trimming. The purpose of trimming cold-rolled stainless steel thin plates is mainly to ensure that the dimensions of the formed parts meet the requirements, remove burrs, and unevenness at the edges.

[0003] Currently, when trimming cold-rolled stainless steel thin plates, the cold-rolled stainless steel thin plates located before the cutting tool are in a freely falling state, and the thin plates are limited by limit rollers and a supporting plate. After entering the cutting tool, the thin plates are driven by conveying rollers to move towards the cutting tool for trimming.

[0004] However, such a forming and trimming method for cold-rolled stainless steel thin plates has the following problems: 1. The cold-rolled stainless steel thin plates after cold-rolling forming are prone to bending deformation during the process of moving and conveying. The existing trimming device has insufficient corrective force for the thin plates, and the deformation of the thin plates affects the straightness during trimming; 2. The cold-rolled stainless steel thin plates are supported and limited by a single limit roller and a conveying mechanism on both sides before and after the cutting tool. It is easy for the cold-rolled stainless steel thin plates to deform and vibrate due to insufficient supporting force during the processes of conveying and trimming under force, thus affecting the quality of trimming. Summary of the Invention

[0005] In view of the above problems, embodiments of the present invention provide a forming and trimming device and method for cold-rolled stainless steel thin plates to solve the technical problems in the related art.

[0006] To achieve the above object, embodiments of the present invention provide the following technical solution: A forming and trimming device for cold-rolled stainless steel thin plates, comprising: a base, on which two mounting frames and a locking mechanism for locking the two mounting frames are installed. Between the two mounting frames, a roll pressing and correcting mechanism and two flattening mechanisms are installed in sequence along their length directions. A trimming machine is also installed on the two mounting frames and is located between the two flattening mechanisms. A transverse leveling mechanism is installed between the two flattening mechanisms.

[0007] The roll pressing and correcting mechanism is used for roll pressing and correcting the thin plate and elastically tensioning the thin plate during the correcting process.

[0008] The trimming machine includes two trimming cutters and a driving part for driving the trimming cutters; the transverse leveling mechanism is located between the two trimming cutters and is used for leveling the thin plate in its width direction. The transverse leveling mechanism cooperates with the two flattening mechanisms to straighten and level the thin plate in the length and width directions and support the trimmed edge of the thin plate.

[0009] The locking mechanism is used to adjust the distance between the mounting frames and uniformly adjust and lock the pressure of the roller pressing and straightening mechanism and the upper and lower roller pressing and limiting forces of the two flattening mechanisms on the thin plate.

[0010] The mounting frames, the locking mechanism, the roller pressing and straightening mechanism, the two flattening mechanisms, and the transverse leveling mechanism together form an operating table with a triangular stable structure.

[0011] In a possible implementation manner, the mounting frame is composed of an inclined frame, a horizontal frame, a triangular frame mounted on the inclined frame, a mounting plate and a mounting seat mounted on the horizontal frame, and plug-in parts mounted at the lower ends of the mounting plate and the mounting seat and inserted into the triangular frame. The inclined frame is mounted on the top of the base, and the inclined frame is in plug-in fit with the end of the horizontal frame away from the triangular frame.

[0012] In a possible implementation manner, the locking mechanism includes a connecting frame jointly mounted on the tops of the two horizontal frames. A support frame spanning across the two horizontal frames is mounted on the base. A screw rod is rotatably connected to the connecting frame, and the screw rod is connected to the support frame in a threaded fit manner.

[0013] In a possible implementation manner, the roller pressing and straightening mechanism includes a tensioning part and two groups of roller pressing and straightening parts; each of the two groups of roller pressing and straightening parts includes two cooperating upper and lower correction rollers. One of the two correction rollers in one group is respectively rotatably connected to the mounting plate and the triangular frame, and the two correction rollers in the other group are respectively rotatably connected to the mounting seat and the triangular frame.

[0014] In a possible implementation manner, the tensioning part includes a fixed seat jointly mounted on the tops of the two inclined frames. An arc-shaped abutting frame is slidably connected to the fixed seat. A first return spring is mounted between the arc-shaped abutting frame and the fixed seat. The outer arc surface of the arc-shaped abutting frame is used to push against the thin plate, and a second friction-reducing roller with a side wall flush with its outer arc surface is rotatably connected to the arc-shaped abutting frame.

[0015] In a possible implementation manner, the flattening mechanism includes a support seat jointly mounted on the tops of the two inclined frames. A plurality of rectangular grooves are formed in the support seat. A supporting roller is rotatably connected in the rectangular groove, and the top of the supporting roller is flush with the top of the support seat. A fixed frame is mounted between the two horizontal frames. A pressing guide plate is slidably arranged up and down at the lower end of the fixed frame, and an elastic pushing member is arranged between the pressing guide plate and the fixed frame.

[0016] In a possible implementation manner, the elastic pushing member includes a plurality of return springs. A slot is provided at the lower end of the fixing frame. A strip inserted into the slot in a sliding manner is installed at the top of the pressing guide plate. The plurality of return springs are installed between the slot and the strip.

[0017] In a possible implementation manner, one end of the pressing guide plate in the entering direction of the thin plate is arc-shaped, so as to facilitate the thin plate to enter between the pressing guide plate and the supporting seat. A friction-reducing roller pressing portion is installed on the lower end surface of the pressing guide plate. The friction-reducing roller pressing portion is that a plurality of first friction-reducing rollers are rotatably connected to the lower end surface of the pressing guide plate, and the friction-reducing rollers correspond to the supporting rollers one by one.

[0018] In a possible implementation manner, the horizontal leveling mechanism includes two fixing plates. One of the fixing plates is fixedly installed between the two supporting seats, and the other fixing plate is fixedly installed between the two pressing guide plates. Push plates are installed on both sides of the fixing plate arranged along its length direction through elastic pushing components.

[0019] In a possible implementation manner, the elastic pushing component includes spring grooves provided on both sides of the fixing plate and slidably connected to the push plate. A plurality of first springs that push the push plate by elastic force are installed between the spring grooves and the push plate.

[0020] Friction-reducing portions for reducing friction in the length direction are installed on the opposite surfaces of the upper and lower push plates. The friction-reducing portions are third friction-reducing rollers, and the axis of the third friction-reducing roller is parallel to the axis of the second friction-reducing roller.

[0021] The present invention also provides a method for forming and trimming a cold-rolled stainless steel thin plate, including the following steps:

[0022] S1, roller pressing and straightening: When the thin plate enters the roller pressing and straightening mechanism, the two groups of straightening rollers perform roller pressing and straightening on the thin plate before trimming the edges of the thin plate. At the same time, the arc-shaped supporting frame tensions the thin plate under the elastic force of the first return spring, so that the thin plate between the two groups of straightening rollers is in a tensioned state.

[0023] S2, flattening and limiting: When the thin plate enters between the pressing guide plate and the supporting seat, the corrected thin plate is flattened and limited under the upper and lower limiting effects of the pressing guide plate and the supporting seat. The two flattening mechanisms cooperate to limit and guide the upper and lower sides of the thin plate after roller pressing and straightening, so that the trimmed edge of the thin plate is flattened and limited along its length direction.

[0024] S3, horizontal leveling: The horizontal leveling mechanism cooperates with the two flattening mechanisms to straighten and level the thin plate in the length direction and the width direction and support the trimmed edge of the thin plate.

[0025] S4, Trimming: The horizontal leveling mechanism cooperates with two flattening mechanisms to make the trimmed edges of the thin plate in a horizontal state. The two sides of the thin plate are trimmed by a trimming machine to remove burrs and irregular edges.

[0026] One or more of the above technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. A stainless steel cold-rolled thin plate forming and trimming device designed by the present invention realizes the roll straightening of the thin plate, the straightening and leveling of the thin plate in the length and width directions, and the support of the trimmed edge through the cooperation of the roll straightening mechanism, two flattening mechanisms and the horizontal leveling mechanism, thus avoiding the problems of deformation of the thin plate during movement, the non-horizontal state of the trimmed edge of the thin plate, and insufficient support force at the trimmed edge, resulting in a decrease in the straightness of the trimmed edge of the thin plate and poor trimming quality; moreover, the mounting frame, locking mechanism, roll straightening mechanism, two flattening mechanisms and horizontal leveling mechanism in the present invention jointly form a working platform with a multi-triangle structure. The multi-triangle structure can effectively improve the overall stability of the device structure, reduce the vibration during movement and cutting, and improve the uniformity of the distribution of the roll pressure and flattening pressure, further improving the straightening and supporting effects on the thin plate, and thus further improving the trimming quality of the thin plate.

[0027] 2. The roll straightening mechanism in the present invention performs roll straightening on the thin plate before trimming the thin plate, and tensions the thin plate during the straightening process of the thin plate, avoiding the thin plate from becoming loose and bending again, thereby affecting the straightening of the thin plate and the accuracy of trimming the two sides of the thin plate.

[0028] 3. The horizontal leveling mechanism cooperates with two flattening mechanisms to straighten and level the thin plate in the length and width directions and support the trimmed edge of the thin plate during trimming, preventing the thin plate from shaking due to the cutting force of the trimming tool, affecting the stability of cutting and the quality of trimming. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0030] Figure 1 is a three-dimensional structural schematic diagram of the trimming device of the present invention.

[0031] Figure 2 is Figure 1 the main cross-sectional view of

[0032] Figure 3It is a schematic structural diagram of the elastic pushing member, fixing bracket and pressing guide plate of the present invention.

[0033] Figure 4 It is a right-sectional structural diagram of the horizontal leveling mechanism of the present invention.

[0034] Figure 5 It is a schematic structural diagram of the mounting bracket of the present invention.

[0035] Reference numerals:

[0036] 1, base; 2, mounting bracket; 20, inclined bracket; 21, horizontal bracket; 22, triangular bracket; 23, mounting plate; 24, mounting seat; 25, plug-in member; 3, locking mechanism; 30, connecting bracket; 31, support bracket; 32, screw; 33, guide rod; 4, roll straightening mechanism; 40, tensioning part; 401, fixed seat; 402, first return spring; 420, arc-shaped abutting bracket; 421, second friction-reducing roller; 41, roll straightening part; 410, straightening roller; 5, flattening mechanism; 50, support seat; 51, supporting roller; 52, fixing bracket; 53, pressing guide plate; 54, elastic pushing member; 55, friction-reducing roller pressing part; 550, first friction-reducing roller; 6, trimming machine; 60, trimming tool; 8, horizontal leveling mechanism; 80, fixing plate; 81, elastic pushing assembly; 82, pushing plate; 83, friction-reducing part; 9, thin plate. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] In order to enable those in the technical field to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] Refer to Figure 1 , a stainless steel cold-rolled thin plate forming and trimming device, comprising: a base 1, two mounting brackets 2 are installed on the base 1 and a locking mechanism 3 for locking the two mounting brackets 2, a roll straightening mechanism 4 and two flattening mechanisms 5 arranged in sequence along its length direction are installed between the two mounting brackets 2, a trimming machine 6 located between the two flattening mechanisms 5 is also installed on the two mounting brackets 2, and a horizontal leveling mechanism 8 is installed between the two flattening mechanisms 5.

[0040] Refer to Figure 1, the roll straightening mechanism 4 is used to roll and straighten the thin plate 9 and elastically tension the thin plate 9 during the straightening process to prevent the thin plate 9 from bending during the conveying and moving process after cold rolling forming, which affects the accuracy of the subsequent trimming of both sides of the thin plate 9.

[0041] Refer to Figure 1 and Figure 2 , the trimming machine 6 includes two trimming cutters 60 and a driving part for driving the trimming cutters 60 (the driving part is, for example, a motor for driving the trimming cutters 60 to rotate); the transverse leveling mechanism 8 is located between the two trimming cutters 60 and is used to level the thin plate 9 in its width direction. The transverse leveling mechanism 8 cooperates with the two flattening mechanisms 5 to straighten and level the thin plate 9 in the length direction and width direction and support the trimming position of the thin plate 9 during trimming, preventing the thin plate 9 from shaking due to the cutting force of the trimming cutters 60, which affects the stability of the trimming of the thin plate 9 and the quality of the trimming.

[0042] Refer to Figure 1 , the locking mechanism 3 is used to adjust the distance between the mounting brackets 2 and uniformly adjust and lock the pressure of the roll straightening mechanism 4 and the upper and lower roll pressing and limiting forces of the two flattening mechanisms 5 on the thin plate 9, greatly improving the convenience of adjustment.

[0043] Refer to Figure 1 、 Figure 2 and Figure 5 , the mounting brackets 2, the locking mechanism 3, the roll straightening mechanism 4, the two flattening mechanisms 5, and the transverse leveling mechanism 8 together form an operating table with a triangular stable structure, thereby improving the stability of the roll straightening mechanism 4, the two flattening mechanisms 5, and the transverse leveling mechanism 8 when performing roll straightening, flattening and limiting, and cutting on the thin plate 9.

[0044] The mounting bracket 2 is composed of an inclined frame 20, a horizontal frame 21, a triangular bracket 22 installed on the inclined frame 20, a mounting plate 23 and a mounting seat 24 installed on the horizontal frame 21, and plug connectors 25 installed at the lower ends of the mounting plate 23 and the mounting seat 24 and inserted into the triangular bracket 22. The inclined frame 20 is installed on the top of the base 1, and the inclined frame 20 is in plug-in fit with one end of the horizontal frame 21 away from the triangular bracket 22.

[0045] Refer to Figure 1 , the locking mechanism 3 includes a connecting frame 30 commonly installed on the tops of the two horizontal frames 21. A support frame 31 straddling the two horizontal frames 21 is installed on the base 1. A screw rod 32 is rotatably connected to the connecting frame 30, and the screw rod 32 is connected to the support frame 31 in a threaded fit manner.

[0046] When the thickness of the thin plate 9 becomes thinner or the roller leveling mechanism 4 and the two flattening mechanisms 5 are worn, by manually rotating the screw 32, during the rotation of the screw 32, through the threaded fit between it and the support frame 31, the two horizontal frames 21 are driven to move downward, the distance between the mounting frames 2 is adjusted, and the pressure of the roller leveling mechanism 4 and the upper and lower roller pressing limiting forces of the two flattening mechanisms 5 on the thin plate 9 are uniformly adjusted and locked.

[0047] During the adjustment process, the horizontal frame 21 drives the mounting plate 23, the mounting seat 24, and the plug-in member 25 to move downward. The plug-in member 25 is in plug-in fit with the triangular frame 22 on the inclined frame 20, thereby forming a triangular structure to improve the overall stability of the trimming device. Two guide rods 33 that are slidably connected to the support frame 31 up and down are also installed on the connecting frame 30. The guide rods 33 are used to improve the stability of the up and down movement of the connecting frame 30.

[0048] Refer to Figure 1 And Figure 2 As shown in, the roller leveling mechanism 4 includes a tensioning part 40 and two groups of roller leveling parts 41; both groups of the roller leveling parts 41 include two cooperating and vertically distributed leveling rollers 410. Two of the leveling rollers 410 in one group are respectively rotatably connected to the mounting plate 23 and the triangular frame 22, and two of the leveling rollers 410 in the other group are respectively rotatably connected to the mounting seat 24 and the triangular frame 22.

[0049] When the thickness of the thin plate 9 becomes thinner or the two groups of leveling rollers 410 are worn, the locking mechanism 3 drives the horizontal frame 21 to move downward. The horizontal frame 21 drives the two leveling rollers 410 located on the upper side to move downward, thereby adjusting the distance between the upper and lower two leveling rollers 410, and further adjusting the roller leveling distance of the two leveling rollers 410 in the same group on the thin plate 9; a driving component for driving the two groups of leveling rollers 410 to rotate and perform roller leveling is provided on the triangular frame 22, the mounting seat 24, and the mounting plate 23; it should be noted that the driving component includes gears that can be detachably sleeved on one end of the four leveling rollers 410. The two gears on the two leveling rollers 410 in the same group are in meshing transmission. Two motors for driving the two leveling rollers 410 on it to rotate are installed on the triangular frame 22. After the distance between the upper and lower two leveling rollers 410 is adjusted, matching gears can be replaced for meshing transmission. The above are all realized by using existing part structures and are not shown in the figure.

[0050] The two groups of leveling rollers 410 perform roller leveling on the thin plate 9 for width-direction deformation and length-direction deformation before trimming, so as to prevent the thin plate 9 from bending during the conveying and moving process after cold rolling forming, which affects the accuracy of the subsequent trimming on both sides.

[0051] Refer to Figure 1 And Figure 2, the tensioning part 40 includes a fixing seat 401 commonly installed on the tops of two inclined frames 20. A curved abutting frame 420 is slidably connected to the fixing seat 401. A first reset spring 402 is installed between the curved abutting frame 420 and the fixing seat 401. The outer arc surface of the curved abutting frame 420 is used to abut and push the thin plate 9. A second friction-reducing roller 421 with its side wall flush with the outer arc surface is rotatably connected to the curved abutting frame 420.

[0052] The curved abutting frame 420 tensions the thin plate 9 under the elastic force of the first reset spring 402, thereby preventing the thin plate 9 between the two roller straightening parts 41 from becoming slack and bending again when the two roller straightening parts 41 straighten the thin plate 9, which affects the straightening of the thin plate 9. The second friction-reducing roller 421 is used to reduce the friction between the thin plate 9 and the curved abutting frame 420.

[0053] Refer to Figure 1 、 Figure 2 And Figure 3 , the flattening mechanism 5 includes a support seat 50 commonly installed on the tops of two inclined frames 20. A plurality of rectangular grooves are formed in the support seat 50. A supporting roller 51 is rotatably connected in the rectangular grooves. The top of the supporting roller 51 is flush with the top of the support seat 50, so that the lower end surface of the thin plate 9 is supported by a larger supporting surface when moving, and at the same time, the friction during its movement is reduced. A fixing frame 52 is installed between the two horizontal frames 21. A pressing guide plate 53 is slidably arranged up and down at the lower end of the fixing frame 52. An elastic abutting member 54 is arranged between the pressing guide plate 53 and the fixing frame 52.

[0054] Refer to Figure 2 And Figure 3 , the elastic abutting member 54 includes a plurality of return springs. A slot is formed at the lower end of the fixing frame 52. A plug strip slidably inserted into the slot is installed at the top of the pressing guide plate 53. A plurality of return springs are installed between the slot and the plug strip. When the straightened thin plate 9 enters between the pressing guide plate 53 and the support seat 50, the thin plate 9 is flattened and limited under the up and down limiting action of the pressing guide plate 53 and the support seat 50, and there is a certain up and down moving elastic force when the pressing guide plate 53 presses and limits the thin plate 9 downward, so as to avoid pressing the thin plate 9 too tightly by the pressing guide plate 53, resulting in difficulty in moving the thin plate 9.

[0055] Refer to Figure 3 , one end of the pressing guide plate 53 in the entering direction of the thin plate 9 is arc-shaped to facilitate the thin plate 9 to enter between the pressing guide plate 53 and the support seat 50. A friction-reducing roller pressing part 55 is installed on the lower end surface of the pressing guide plate 53. Specifically, the friction-reducing roller pressing part 55 is a plurality of first friction-reducing rollers 550 rotatably connected to the lower end surface of the pressing guide plate 53. The first friction-reducing rollers 550 correspond to the supporting rollers 51 one by one, so as to reduce the friction between the pressing guide plate 53 and the support seat 50 and the thin plate 9.

[0056] Refer to Figure 1, Figure 2 and Figure 4 , the transverse leveling mechanism 8 includes two fixing plates 80, one of the fixing plates 80 is fixedly installed between two support seats 50, the other fixing plate 80 is fixedly installed between two pressing guide plates 53, and both sides of the fixing plate 80 arranged along its length direction are provided with push plates 82 installed through elastic pushing components 81.

[0057] Refer to Figure 4 , the elastic pushing component 81 includes spring grooves opened on both sides of the fixing plate 80 and slidably connected with the push plate 82, and a plurality of spring one for pushing the push plate 82 by elastic force are installed between the spring grooves and the push plate 82.

[0058] In the initial state, the external drive drives both push plates 82 to approach the fixing plate 80 connected thereto. When the thin plate 9 enters between the upper and lower push plates 82, the push plates 82 are released. The friction force between the push plate 82 and the thin plate 9 causes the push plate 82 to have a tendency to push the thin plate 9 in the direction of the two trimming cutters 60 under the elastic force of the spring one, so as to straighten the thin plate 9 in the width direction. The upper and lower push plates 82 slide along the pressing guide plates 53 on both sides or the support seats 50 on both sides thereof respectively, so that the trimmed edges of the thin plate 9 are straightened and supported horizontally and longitudinally, preventing the thin plate 9 from shaking due to the cutting force during the cutting of the trimming cutter 60 and affecting the trimming quality.

[0059] Refer to Figure 4 , anti-friction parts 83 for reducing friction in the length direction are installed on the opposite surfaces of the upper and lower push plates 82. Specifically, the anti-friction parts 83 are anti-friction rollers three, and the axis of the anti-friction roller three is parallel to the axis of the anti-friction roller two 421, so that the push plate 82 can not only push and straighten the thin plate 9 in its width direction, but also reduce the friction force between the push plate 82 and the thin plate 9.

[0060] Refer to Figures 1 - 5 , the present invention also provides a method for forming and trimming stainless steel cold-rolled thin plates, including the following steps: S1, roll pressing and straightening: When the thin plate 9 enters the roll pressing and straightening mechanism 4, two groups of straightening rollers 410 perform roll pressing and straightening on the thin plate 9 before trimming the edges of the thin plate 9. At the same time, the arc-shaped abutting frame 420 tensions the thin plate 9 under the elastic force of the return spring one 402, so that the thin plate 9 between the two groups of straightening rollers 410 is in a tensioned state, and the friction force between the thin plate 9 and the arc-shaped abutting frame 420 is reduced by the anti-friction roller two 421.

[0061] S2, Flattening and Limiting: When the thin plate 9 enters between the pressing guide plate 53 and the support seat 50, the corrected thin plate 9 is flattened and limited under the upper and lower limiting effects of the pressing guide plate 53 and the support seat 50. The two flattening mechanisms 5 cooperate to limit and guide the upper and lower sides of the roller-compressed and corrected thin plate 9, so that the cut edge of the thin plate 9 is flattened and limited in the length direction.

[0062] S3, Transverse Flattening: The pushing plate 82 pushes the thin plate 9 towards the two trimming cutters 60 under the elastic force of the first spring, straightening the thin plate 9 in the width direction. The pushing plates 82 on the upper and lower sides slide along the pressing guide plates 53 on both sides or the support seats 50 on both sides respectively, so that the cut edge of the thin plate 9 is transversely straightened and supported. The transverse flattening mechanism 8 and the two flattening mechanisms 5 cooperate to straighten and flatten the thin plate 9 in the length and width directions and support the cut edge of the thin plate 9.

[0063] S4, Trimming: The transverse flattening mechanism 8 and the two flattening mechanisms 5 cooperate to make the cut edge of the thin plate 9 in a horizontal state, and the two sides of the thin plate 9 are trimmed by the trimming machine 6 to remove burrs and irregular edges.

[0064] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0065] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0066] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A forming and trimming device for cold-rolled stainless steel thin plates, characterized in that, Including: A base, on which two mounting brackets and a locking mechanism for locking the two mounting brackets are installed; A roll straightening mechanism, arranged between the two mounting brackets, for roll straightening and elastic tensioning of the thin plate; Two flattening mechanisms, arranged between the two mounting brackets, for upper and lower roll pressing and limiting of the thin plate before and after trimming, and the roll straightening mechanism and the two flattening mechanisms are arranged in sequence along the length direction of the mounting brackets; A trimming machine, arranged on the two mounting brackets, located between the two flattening mechanisms, including two trimming cutters and a driving part for driving the trimming cutters; A transverse leveling mechanism, arranged between the two flattening mechanisms and the two trimming cutters, for leveling the thin plate in the width direction. The transverse leveling mechanism cooperates with the two flattening mechanisms to straighten and level the thin plate in the length and width directions during trimming and support the trimming position; The locking mechanism is used to adjust the distance between the mounting brackets and uniformly adjust and lock the pressure of the roll straightening mechanism and the upper and lower roll pressing and limiting forces of the two flattening mechanisms; The mounting brackets, the locking mechanism, the roll straightening mechanism, the two flattening mechanisms, and the transverse leveling mechanism jointly form a workbench that provides stable support for the thin plate and uniform roll pressing and flattening effects to reduce the deformation and vibration of the thin plate and presents a multi-triangle structure; 2. The edge trimming device for forming cold-rolled stainless steel sheets according to claim 1, wherein: The mounting bracket is composed of an inclined frame, a horizontal frame, a triangular bracket installed on the inclined frame, a mounting plate and a mounting seat installed on the horizontal frame, and a plug-in member installed at the lower ends of the mounting plate and the mounting seat and inserted into the triangular bracket. The inclined frame is installed on the top of the base; 3. The edge trimming device for forming cold-rolled stainless steel sheets according to claim 2, characterized in that: The locking mechanism includes a connecting frame jointly installed at the tops of the two horizontal frames. A support frame straddling the two horizontal frames is installed on the base. A screw rod is rotatably connected to the connecting frame, and the screw rod is connected to the support frame in a threaded cooperation manner; 4. The edge trimming device for forming cold-rolled stainless steel sheets according to claim 2, characterized in that: The roll straightening mechanism includes a tensioning part and two groups of roll straightening parts. The tensioning part is located between the two groups of roll straightening parts, and the tensioning part is used to tension the thin plate between the two groups of roll straightening parts during the process of straightening the thin plate by the two groups of roll straightening parts; 5. The forming and trimming device for cold-rolled stainless steel sheets according to claim 2, wherein: The flattening mechanism includes a support seat jointly installed at the tops of the two inclined frames. Support rollers evenly arranged along its length direction are installed on the support seat in a rolling manner. The tops of the support rollers are flush with the top of the support seat. A fixed frame is installed between the two horizontal frames. A pressing guide plate is slidably arranged up and down at the lower end of the fixed frame. An elastic pushing member is arranged between the pressing guide plate and the fixed frame. One end of the pressing guide plate in the direction of the thin plate entering is arc-shaped, and a friction-reducing roll pressing part is installed on the lower end surface of the pressing guide plate; 6. The edge trimming device for forming a cold-rolled stainless steel thin sheet according to claim 5, wherein: The transverse leveling mechanism includes two fixing plates. One fixing plate is fixedly installed between the two support seats, and the other fixing plate is fixedly installed between the two pressing guide plates. Push plates are installed on both sides of the fixing plate arranged along its length direction through elastic pushing components. The push plates are slidably connected to the pressing guide plates or the support seats on both sides of them. The push plates push the thin plate towards the two trimming cutters under the elastic force of the elastic pushing components to straighten the thin plate in the width direction; Friction-reducing parts for reducing friction in the length direction are installed on the opposite surfaces of the upper and lower push plates.

7. The edge trimming device for forming cold-rolled stainless steel sheets according to claim 4, wherein: Both of the two roll straightening parts include two cooperating straightening rolls which are distributed vertically. Two straightening rolls in one of the groups are respectively rotatably connected to the mounting plate and the triangular frame, and two straightening rolls in the other group are respectively rotatably connected to the mounting seat and the triangular frame. A driving component for driving the two groups of straightening rolls to rotate for straightening by rolling is provided on the triangular frame, the mounting seat and the mounting plate.

8. The edge trimming device for forming cold-rolled stainless steel sheets according to claim 4, characterized in that: The tensioning part includes a fixed seat commonly installed at the tops of two inclined frames. A tensioning pushing component is slidably connected to the fixed seat. A first return spring is installed between the tensioning pushing component and the fixed seat. The tensioning pushing component is used for tensioning the thin plate and supporting it during the moving process.

9. The edge trimming device for forming cold-rolled stainless steel sheets according to claim 8, characterized in that: The tensioning pushing component includes an arc-shaped pushing frame slidably installed on the fixed seat. The outer arc surface of the arc-shaped pushing frame is used for pushing the thin plate. A second friction-reducing roller with a side wall flush with its outer arc surface is rotatably connected to the arc-shaped pushing frame.

10. A method for forming and trimming a cold-rolled stainless steel thin sheet, which is completed by cooperating with a device for forming and trimming a cold-rolled stainless steel thin sheet as described in claim 1, and is characterized in that, It includes the following steps: S1, Roll straightening: When the thin plate enters the roll straightening mechanism, the roll straightening mechanism straightens the thin plate by rolling and tensions it during the straightening process. S2, Flattening and limiting: The two flattening mechanisms cooperate to limit and guide the upper and lower sides of the thin plate after roll straightening, and the cut edge of the thin plate is flattened and limited along its length direction. S3, Horizontal leveling: The horizontal leveling mechanism and the two flattening mechanisms cooperate to straighten and level the thin plate in the length direction and the width direction, and support the cut edge of the thin plate. S4, Cut edge treatment: The horizontal leveling mechanism and the two flattening mechanisms cooperate to make the cut edge of the thin plate in a horizontal state, and the two sides of the thin plate are cut by a cutting machine.

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