Numerical control hydraulic plate shearing machine for energy storage container side plate sizing

Abstract

This invention discloses a CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers, belonging to the field of energy storage container side panel processing technology. It includes a frame, a hydraulic shearing cylinder fixedly mounted on the top of the frame, a blade holder vertically fixed downwards at the output end of the hydraulic shearing cylinder, an upper shearing blade fixed at the bottom of the blade holder, a cutting table fixed in the middle of the frame, and a lower shearing blade on the top of the cutting table that cooperates with the upper shearing blade. This invention, by setting a spray pipe structure with atomizing nozzles on both sides below the blade holder, and cooperating with a passivation liquid delivery mechanism, can simultaneously and precisely spray passivation liquid onto the cut surfaces of both the finished plate and the parent material to be processed during the process of shearing and unloading the finished plate. This achieves a one-time fully enclosed anti-oxidation protection treatment of the cut surfaces, eliminating the need for offline independent passivation after shearing, thus improving production continuity and processing efficiency.

Description

Technical Field

[0001] This invention relates to CNC hydraulic shearing machines, and in particular to CNC hydraulic shearing machines for fixed-length processing of side panels of energy storage containers, belonging to the field of energy storage container side panel processing technology. Background Technology

[0002] In the process of fixed-length processing of side panels of energy storage containers, since the side panels of energy storage containers are mostly large-sized hot-dip galvanized cold-rolled steel plates, the industry generally uses CNC hydraulic shearing machines to complete the fixed-length shearing process. By controlling the linear movement of the cutter head, it applies shearing force to the metal plate to achieve fixed-length breakage and separation of the plate.

[0003] In practical use, the existing CNC hydraulic shearing machine is limited to cutting plates to a fixed length. It cannot simultaneously complete the protective treatment of the cut end face during the shearing process. After the side plate is sheared, the cut position will damage the original anti-corrosion coating on the plate surface, resulting in the direct exposure of the internal metal substrate. This will cause the protective structure of the container to fail, seriously affecting the overall service life and structural safety of the energy storage container.

[0004] To address these issues, a CNC hydraulic shearing machine was designed for the fixed-length processing of side panels of energy storage containers. Summary of the Invention

[0005] The main objective of this invention is to provide a CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers, in order to solve the problem that current equipment only has a single fixed-length shearing function for sheet metal and cannot simultaneously complete the anti-corrosion protection treatment of the cut end face during the shearing process.

[0006] The objective of this invention can be achieved by adopting the following technical solution:

[0007] A CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers includes a frame, a hydraulic shearing cylinder fixedly installed on the top of the frame, a knife holder fixed vertically downward at the output end of the hydraulic shearing cylinder, an upper shearing blade fixed at the bottom of the knife holder, a cutting table fixed in the middle of the frame, and a lower shearing blade on the top of the cutting table that cooperates with the upper shearing blade.

[0008] A tray is fixed at the discharge end of the frame, and a rear conveying roller is rotatably mounted on the top of the tray. The frame is equipped with a drive mechanism that is linked to the reset of the cutter holder, and a pressing and limiting mechanism that works with the drive mechanism to achieve fixed-length pressing and conveying of the sheet metal. The power input end of the drive mechanism is fixedly connected to the cutter holder, and the output end of the drive mechanism is connected to the rear conveying roller for transmission, so that when the hydraulic shearing cylinder drives the cutter holder to return to reset, the rear conveying roller is driven to rotate at a fixed length through pure mechanical linkage.

[0009] A spray pipe is fixed below the blade holder along its length. Several sets of atomizing nozzles are evenly installed on both sides of the spray pipe along its length. The atomizing nozzles on both sides of the spray pipe correspond to the cut end face of the finished board and the cut end face of the parent material to be processed, respectively.

[0010] The top of the frame is also equipped with a passivation liquid conveying mechanism. The power input end of the passivation liquid conveying mechanism is rigidly linked with the clamping and limiting mechanism. The liquid outlet end of the passivation liquid conveying mechanism is connected to the spray pipe through a pipeline to quantitatively convey the passivation liquid to the spray pipe after the plate is conveyed to a fixed length.

[0011] Preferably, the feed end of the frame is rotatably equipped with a front conveyor roller for conveying the sheet material to be processed. The front conveyor rollers are evenly spaced along the length of the cutting table, and the surface of the front conveyor rollers is coated with a wear-resistant coating.

[0012] Preferably, the drive mechanism includes a rack, a drive gear, a driven gear, and a one-way transmission assembly. The rack is vertically fixed on the side wall of the cutter holder. The drive gear is rotatably mounted on the support plate and meshes with the rack. The driven gear is loosely fitted on the roller shaft of the rear conveyor roller and forms a coaxial rotational engagement with the roller shaft. The drive gear meshes with the driven gear. The one-way transmission assembly is located at the center of the driven gear so as to drive the rear conveyor roller to rotate unidirectionally when the cutter holder returns and keep the rear conveyor roller stationary when the cutter holder descends to shear.

[0013] Preferably, the one-way transmission assembly includes a ratchet, a ratchet tooth, and a first spring. A groove is provided at the center of the driven gear. The ratchet is coaxially fixed on the roller shaft of the rear conveyor roller. The ratchet tooth is hinged to the inner wall of the groove. The two ends of the first spring are fixedly connected to the ratchet tooth and the inner wall of the groove, respectively. The ratchet tooth and the groove of the ratchet tooth engage in a one-way engagement.

[0014] Preferably, the pressing and limiting mechanism includes a horizontal plate, a second spring, a slide rod, a mounting plate, an elastic pressing component, a pressure roller, and a locking and releasing component. The slide rod is vertically fixed between the bottom of the frame and the support plate. The horizontal plate is vertically slidably installed between the slide rods. The second spring is sleeved on the outside of the slide rod, and the two ends of the second spring abut against the top of the horizontal plate and the support plate, respectively. The mounting plate is horizontally set below the horizontal plate. An elastic pressing component is provided between the mounting plate and the horizontal plate to adaptively fit according to the thickness of the material.

[0015] The pressure roller is rotatably mounted at the bottom of the mounting plate, and is located directly above the rear conveyor roller. The side wall of the knife holder is fixed with a pressure block that cooperates with the horizontal plate. The locking and releasing assembly is located between the horizontal plate and the frame. It is used to lock when the horizontal plate moves down to press the plate, reset the knife holder to the top, and automatically unlock and reset after the plate is conveyed.

[0016] Preferably, the elastic compression assembly includes a third spring and a limiting rod. The limiting rod is vertically slidably mounted on the horizontal plate, and the bottom end of the limiting rod is fixedly connected to the top of the mounting plate. The top end of the limiting rod is provided with a protrusion that fits against the top of the horizontal plate to limit the top end of the limiting rod. The outer side of the limiting rod is fitted with a third spring, and the two ends of the third spring abut against the horizontal plate and the mounting plate, respectively.

[0017] Preferably, the locking and releasing assembly includes a sliding sleeve, a plug, a fourth spring, and a pull rope. The sliding sleeve is fixed at both ends of the horizontal plate. A plug is slidably provided at one end of the sliding sleeve near the side of the frame. A fourth spring is provided between the plug and the inner end of the sliding sleeve. A slot that mates with the plug is provided at the bottom of the inner wall of the frame. The slot is located on the downward movement path of the plug. One end of the pull rope is fixedly connected to the plug, and the other end of the pull rope slides out from the inside of the sliding sleeve and is fixedly connected to the pressure block. When the tool holder is reset to the top, the plug is pulled out of the slot by the pull rope.

[0018] Preferably, the passivation liquid delivery mechanism includes a cylinder, a piston, a pull rod, a passivation liquid storage tank, an inlet pipe, and an outlet pipe. The cylinder is fixed to the lower side of the top of the frame. The piston is slidably installed inside the cylinder, and the inside of the cylinder forms a liquid chamber above the piston. The top end of the pull rod is fixedly connected to the bottom of the piston, and the bottom end of the pull rod extends vertically downward to the outside of the cylinder and is fixedly connected to the top of the cross plate. The passivation liquid storage tank is fixed to the top of the frame. The two ends of the inlet pipe are respectively connected to the outlet of the passivation liquid storage tank and the liquid chamber of the cylinder. The two ends of the outlet pipe are respectively connected to the liquid chamber of the cylinder and the inlet of the nozzle.

[0019] Preferably, the inlet pipe is equipped with an inlet check valve that allows the passivating liquid to flow only from the passivating liquid storage tank to the inside of the cylinder, and the outlet pipe is equipped with an outlet check valve that allows the passivating liquid to flow only from the inside of the cylinder to the nozzle.

[0020] Preferably, the length of the nozzle matches the length of the cutter holder, the atomizing nozzles are evenly spaced on both sides of the nozzle, and the spray axes of the atomizing nozzles on both sides form an acute angle of 45°-60° with the cut end face of the plate.

[0021] The beneficial effects of this invention are as follows:

[0022] The CNC hydraulic shearing machine for fixed-length processing of energy storage container side panels provided by the present invention, by setting a spray pipe structure with atomizing nozzles on both sides below the knife holder, and working in conjunction with the passivation liquid conveying mechanism, can simultaneously and precisely spray passivation liquid on the cut end face of the cut finished plate and the cut end face of the parent material to be processed during the process of the plate shearing and the finished plate being shipped out. It can complete the fully enclosed anti-oxidation protection treatment of the cut surface in one go, without the need for offline independent passivation after shearing, thus improving production continuity and processing efficiency.

[0023] By setting a pallet structure with a rear conveyor roller at the rear end of the frame, and cooperating with a drive mechanism and a clamping limit mechanism linked with the hydraulic shearing cylinder, the cut plate can be conveyed horizontally to a fixed length through pure mechanical structure linkage control during the return and reset process of the hydraulic shearing cylinder driving the cutter holder. There is no need to configure an additional automated CNC control system and an independent drive power source. It relies entirely on the mechanical transmission of the main shearing action, which not only ensures the accuracy of the side plate fixed length feeding, but also reduces the equipment manufacturing cost and improves the stability and practicality of the equipment continuous operation.

[0024] By setting a passivation liquid delivery mechanism consisting of a cylinder, piston, pull rod, passivation liquid storage tank, inlet pipe, and outlet pipe between the horizontal plate and the top of the frame, the passivation liquid delivery mechanism is rigidly linked with the horizontal plate of the clamping and limiting mechanism. During the shearing of the sheet metal and the downward movement and clamping of the horizontal plate, the piston is driven to move down simultaneously to complete the quantitative extraction and precise delivery of the passivation liquid. During the return stroke of the clamping and limiting mechanism, the piston is automatically linked to reset synchronously, realizing the automatic supply of passivation liquid. There is no need to configure an additional electrical control unit and an independent liquid supply system, ensuring the uniformity and consistency of the passivation film coating on the cut. Attached Figure Description

[0025] Figure 1 This is a front view schematic diagram of an embodiment of the present invention;

[0026] Figure 2 This is a rear view diagram of an embodiment of the present invention;

[0027] Figure 3 This is a side sectional view of an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of a partial structure within the frame according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the overall sheet metal conveying structure according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the driving mechanism according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the clamping and limiting mechanism according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the locking and releasing assembly according to an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the outer fixing structure of the tool holder according to an embodiment of the present invention;

[0034] Figure 10 This is a schematic diagram of the passivation liquid delivery mechanism according to an embodiment of the present invention.

[0035] In the diagram: 1. Frame; 101. Hydraulic shearing cylinder; 102. Blade holder; 103. Cutting table; 104. Front conveyor roller;

[0036] 2. Pallet; 3. Rear conveyor roller;

[0037] 4. Drive mechanism; 401. Drive gear; 402. Rack; 403. Driven gear; 404. Groove; 405. Ratchet; 406. Ratchet tooth; 407. First spring;

[0038] 5. Pressing and limiting mechanism; 501. Horizontal plate; 502. Second spring; 503. Slide rod; 504. Third spring; 505. Limiting rod; 506. Mounting plate; 507. Pressure roller; 508. Pressure block; 509. Sliding sleeve; 510. Insert block; 511. Slot; 512. Fourth spring; 513. Pull rope;

[0039] 6. Nozzle; 7. Atomizing nozzle;

[0040] 8. Passivating fluid delivery mechanism; 801. Cylinder; 802. Piston; 803. Tie rod; 804. Passivating fluid storage tank; 805. Inlet pipe; 806. Drain pipe. Detailed Implementation

[0041] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0042] like Figures 1-10 As shown, this embodiment provides a CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers, including a frame 1, a hydraulic shearing cylinder 101 fixedly installed on the top of the frame 1, a knife holder 102 fixed vertically downward at the output end of the hydraulic shearing cylinder 101, an upper shearing blade fixed at the bottom of the knife holder 102, a cutting table 103 fixed in the middle of the frame 1, and a lower shearing blade on the top of the cutting table 103 that cooperates with the upper shearing blade.

[0043] The discharge end of the frame 1 is fixed with a pallet 2. The top of the pallet 2 is rotatably mounted with a rear conveyor roller 3. The adjacent rear conveyor rollers 3 are driven by a sprocket or belt pulley. The frame 1 is equipped with a drive mechanism 4 that is linked to the reset of the cutter holder 102, and a pressing and limiting mechanism 5 that cooperates with the drive mechanism 4 to achieve fixed-length pressing and conveying of the plate. The power input end of the drive mechanism 4 is fixedly connected to the cutter holder 102, and the output end of the drive mechanism 4 is connected to the rear conveyor roller 3 for transmission, so that when the hydraulic shearing cylinder 101 drives the cutter holder 102 to return to reset, the rear conveyor roller 3 is driven to rotate at a fixed length through pure mechanical linkage.

[0044] A nozzle 6 is fixed below the blade holder 102 along its length. Several sets of atomizing nozzles 7 are evenly installed on both sides of the nozzle 6 along its length. The atomizing nozzles 7 on both sides of the nozzle 6 correspond to the cut end face of the finished plate and the cut end face of the parent material to be processed, respectively.

[0045] The top of the frame 1 is also equipped with a passivation liquid conveying mechanism 8. The power input end of the passivation liquid conveying mechanism 8 is rigidly linked with the clamping and limiting mechanism 5. The liquid outlet end of the passivation liquid conveying mechanism 8 is connected to the spray pipe 6 through a pipeline to quantitatively convey the passivation liquid to the spray pipe 6 after the plate is conveyed to a fixed length.

[0046] When the hydraulic shearing cylinder 101 drives the cutter head 102 to descend vertically, the cutter head 102 simultaneously engages with the clamping and limiting mechanism 5 to clamp the plate. As the cutting progresses, the pressure on the plate increases to prevent the plate from shifting during the shearing process. The upper shearing blade at the bottom of the cutter head 102 cooperates with the lower shearing blade on the cutting table 103 to apply shearing force to the hot-dip galvanized steel plate, completing the fixed-length breakage and separation of the energy storage container side panel. After shearing, the hydraulic shearing cylinder 101 drives the cutter head 102 to return vertically to its original position. During the return stroke, the clamping and limiting mechanism 5 remains locked and clamped, and the pressure on the plate remains unchanged. Multiple rear conveyor rollers 3 are synchronously driven by sprockets or pulleys. One of the active rear conveyor rollers 3 is connected to the drive mechanism 4, and the remaining driven rear conveyor rollers 3 rotate accordingly. During the return stroke, the cutter head 102 drives the rear conveyor rollers 3 to rotate unidirectionally at a fixed length through the drive mechanism 4, relying on the pressure... The stable friction under tight conditions simultaneously achieves fixed-length output of the finished sheet material after shearing. The rotation of the rear conveyor roller 3 only moves the sheared finished sheet material to the output end by a fixed length, without moving the unprocessed parent material. This precisely increases the distance between the cut end face of the finished sheet material and the cut end face of the parent material to be processed, providing sufficient unobstructed operating space for subsequent passivation liquid spraying. After the cutter holder 102 is reset to the top and the sheet material is conveyed, the locking release component in the clamping limit mechanism 5 is triggered to unlock, and the clamping limit mechanism 5 is reset simultaneously. During the reset process of the clamping limit mechanism 5, the passivation liquid conveying mechanism 8 is linked to complete the quantitative delivery of the passivation liquid. The passivation liquid enters the spray pipe 6 below the cutter holder 102 through the pipeline, and finally passes through the atomizing nozzles 7 on both sides of the spray pipe 6 to simultaneously perform precise atomized spraying of passivation liquid on the cut end face of the cut finished sheet material and the cut end face of the parent material to be processed, completing the fully enclosed anti-oxidation protection treatment of the cut surface in one go.

[0047] In this embodiment, a front conveyor roller 104 for conveying the sheet metal to be processed is rotatably installed at the feeding end of the frame 1, providing feeding support and horizontal guidance for large-sized hot-dip galvanized steel sheets to be processed; the front conveyor rollers 104 are evenly spaced along the length of the cutting table 103 to form a continuous horizontal support surface, which can effectively avoid the problem of sagging in the middle and offset at the end during the feeding of ultra-long sheets, and ensure the levelness and straightness of the sheet metal during the feeding process; the surface of the front conveyor rollers 104 is coated with a wear-resistant coating to prevent the galvanized layer on the surface from being scratched and damaged during the feeding process, while improving the wear resistance and service life of the front conveyor rollers 104.

[0048] During operation, the sheet material to be processed slides horizontally along the roller surface of the front conveyor roller 104 under the push of manual or auxiliary feeding equipment, passes through the shearing station of the cutting table 103, and finally adheres to the rear conveyor roller 3 on the top of the pallet 2, completing the initial feeding and positioning.

[0049] In this embodiment, the drive mechanism 4 includes a rack 402, a drive gear 401, a driven gear 403, and a one-way transmission assembly. The rack 402 is vertically fixed on the side wall of the cutter holder 102. The drive gear 401 is rotatably mounted on the support plate 2 and meshes with the rack 402. The driven gear 403 is loosely fitted on the roller shaft of the rear conveyor roller 3 and forms a coaxial rotational engagement with the roller shaft. The drive gear 401 meshes with the driven gear 403. The one-way transmission assembly is located at the center of the driven gear 403 so as to drive the rear conveyor roller 3 to rotate unidirectionally when the cutter holder 102 returns and keep the rear conveyor roller 3 stationary when the cutter holder 102 descends for shearing.

[0050] When the hydraulic shearing cylinder 101 drives the cutter holder 102 to move vertically downward to perform the shearing operation, the cutter holder 102 drives the rack 402 on the side wall to move vertically downward synchronously. The rack 402 drives the drive gear 401 to rotate forward through tooth meshing. The drive gear 401 then drives the driven gear 403 to rotate in the opposite direction through tooth meshing. At this time, the one-way transmission component set at the center of the driven gear 403 is in a disengaged state, and the rotational power of the driven gear 403 cannot be transmitted to the roller shaft of the rear conveyor roller 3. The rear conveyor roller 3 remains stationary, ensuring that the plate does not have horizontal displacement during the shearing process and guaranteeing the accuracy of the fixed-length shearing. When the hydraulic shearing cylinder 101 drives the cutter holder 102 to return vertically to reset, the cutter holder 102 drives the rack 402 to move vertically upward synchronously. The rack 402 meshes and drives the drive gear 403 to rotate in the opposite direction. The driving gear 401 rotates in the reverse direction, and then engages to drive the driven gear 403 to rotate in the forward direction. At this time, the one-way transmission component is in the engagement transmission state, and the rotational power of the driven gear 403 is completely transmitted to the roller shaft of the rear conveying roller 3, driving the rear conveying roller 3 to rotate in one direction at a fixed length. With the help of the sprocket or belt pulley transmission between adjacent rear conveying rollers 3, the synchronous rotation of all rear conveying rollers 3 is achieved. During this process, the pressing and limiting mechanism 5 always maintains the pressing state on the plate, which greatly increases the frictional resistance between the plate and the roller surface of the rear conveying roller 3, avoids slippage between the roller surface and the plate, and ensures that the rotational power of the rear conveying roller 3 can be stably converted into the horizontal conveying thrust of the plate. Finally, it drives the sheared finished plate to be conveyed to the discharge end at a fixed length, providing space for the spraying of passivation liquid.

[0051] In this embodiment, the one-way transmission assembly includes a ratchet 405, a ratchet tooth 406, and a first spring 407. A groove 404 is provided at the center of the driven gear 403. The ratchet 405 is coaxially fixed on the roller shaft of the rear conveying roller 3. The ratchet tooth 406 is hinged to the inner wall of the groove 404. The two ends of the first spring 407 are fixedly connected to the ratchet tooth 406 and the inner wall of the groove 404, respectively. The ratchet tooth 406 and the tooth groove of the ratchet 405 engage in a one-way engagement.

[0052] When the cutter holder 102 descends for shearing and the driven gear 403 rotates in the opposite direction, the driven gear 403 drives the ratchet 406 in the groove 404 to rotate synchronously around the hinge point. The tooth tip of the ratchet 406 slides along the inclined surface of the back of the ratchet 405, while simultaneously compressing the first spring 407 to retract into the groove 404, making it unable to engage with the tooth groove of the ratchet 405. The driven gear 403 and the ratchet 405 are in a separated state, and power cannot be transmitted. The roller shaft of the rear conveyor roller 3 remains stationary. When the cutter holder 102 descends for shearing and the driven gear 403 rotates in the opposite direction, the driven gear 403 drives the ratchet 406 in the groove 404 to rotate synchronously around the hinge point. The tooth tip of the ratchet 406 slides along the inclined surface of the back of the ratchet 405, while the first spring 407 is compressed and retracts into the groove 404, making it unable to engage with the tooth groove of the ratchet 405. The driven gear 403 and the ratchet 405 are in a separated state, and power cannot be transmitted. The roller shaft of the rear conveyor roller 3 remains stationary. When the driven gear 403 rotates forward during the return stroke, the rebound force of the first spring 407 pushes the ratchet 406 to reset and unfold around the hinge point. The tooth tip of the ratchet 406 precisely engages in the tooth groove of the ratchet 405, so that the driven gear 403 and the ratchet 405 form a rigid engagement connection. The rotational power of the driven gear 403 is completely transmitted to the roller shaft of the rear conveyor roller 3 through the engagement of the ratchet 406 and the ratchet 405, driving the rear conveyor roller 3 to rotate synchronously, realizing the one-way precise transmission of power.

[0053] In this embodiment, the pressing and limiting mechanism 5 includes a horizontal plate 501, a second spring 502, a slide rod 503, a mounting plate 506, an elastic pressing component, a pressure roller 507, and a locking and releasing component. The slide rod 503 is vertically fixed between the bottom of the frame 1 and the support plate 2. The horizontal plate 501 is vertically slidably installed between the slide rods 503. The second spring 502 is sleeved on the outside of the slide rod 503. The two ends of the second spring 502 abut against the top of the horizontal plate 501 and the support plate 2, respectively. The mounting plate 506 is horizontally arranged below the horizontal plate 501. An elastic pressing component is provided between the mounting plate 506 and the horizontal plate 501 to adaptively fit according to the thickness of the plate.

[0054] The pressure roller 507 is rotatably mounted on the bottom of the mounting plate 506. The pressure roller 507 is located directly above the rear conveying roller 3. The side wall of the knife holder 102 is fixed with a pressure block 508 that cooperates with the horizontal plate 501. The locking and releasing assembly is set between the horizontal plate 501 and the frame 1. It is used to lock when the horizontal plate 501 moves down to press the plate, reset the knife holder 102 to the top, and automatically unlock and reset after the plate is conveyed.

[0055] In the initial state, the rebound force of the second spring 502 pushes the horizontal plate 501 to remain in a high position along the slide bar 503. A gap is reserved between the roller surface of the pressure roller 507 and the rear conveying roller 3 for the plate to pass through, which does not affect the initial feeding and delivery of the plate. When the hydraulic shearing cylinder 101 drives the cutter holder 102 to move downward, the cutter holder 102 drives the pressure block 508 on the side wall to move downward synchronously. The pressure block 508 first contacts the top surface of the horizontal plate 501, pushing the horizontal plate 501 to slide vertically downward along the slide bar 503. The horizontal plate 501 compresses the second spring 502. During the cutting process, the elastic compression component drives the mounting plate 506 and the pressure roller 507 to move downwards synchronously until the roller surface of the pressure roller 507 is in close contact with the upper surface of the material. Then, the elastic compression component adaptively compresses and deforms according to the actual thickness of the material, so that the pressure roller 507 presses the material firmly against the top of the rear conveying roller 3, achieving flexible pressing and limiting of the material. Throughout the entire cutting and downward movement process, the horizontal plate 501 moves downwards together with the pressure block 508 until the cutting is completed and the pressure block 508 reaches its lowest point. At this time, the horizontal plate 501 also reaches its lowest point. Then, the locking and releasing assembly is automatically triggered, rigidly locking the horizontal plate 501 to the frame 1. This locked state will be maintained continuously. During the resetting and upward movement of the cutter holder 102, the position of the horizontal plate 501 will not change until the cutter holder 102 returns to the top and the fixed-length conveying of the sheet is completed. This ensures that the sheet does not have any horizontal displacement during the entire shearing process, improving the fixed-length shearing accuracy. Furthermore, during the sheet conveying process, the continuous pressing of the pressure roller 507 increases the positive pressure and frictional resistance between the sheet and the rear conveying roller 3, preventing... When the rear conveyor roller 3 rotates, slippage occurs between it and the plate, ensuring that the rotational power of the rear conveyor roller 3 can be stably converted into the horizontal conveying thrust of the plate. After the knife holder 102 is reset to the top and the plate is conveyed, the locking and releasing component is automatically triggered to unlock as the knife holder 102 is in position. The rebound force of the second spring 502 pushes the horizontal plate 501 to move vertically upward along the slide bar 503 to reset. The pressure roller 507 moves upward synchronously with the horizontal plate 501, forming a feeding gap with the rear conveyor roller 3 again, providing space for the next feeding and cycle operation.

[0056] In this embodiment, the elastic compression assembly includes a third spring 504 and a limiting rod 505. The limiting rod 505 is vertically slidably mounted on the horizontal plate 501, and the bottom end of the limiting rod 505 is fixedly connected to the top of the mounting plate 506. The top end of the limiting rod 505 is provided with a protrusion that fits against the top of the horizontal plate 501 to limit the top end of the limiting rod 505. The third spring 504 is fitted on the outside of the limiting rod 505, and the two ends of the third spring 504 abut against the horizontal plate 501 and the mounting plate 506, respectively.

[0057] When the horizontal plate 501 moves downward, causing the pressure roller 507 to contact the upper surface of the plate, the horizontal plate 501 continues to move downward under the push of the pressure block 508. At this time, the pressure roller 507 and the mounting plate 506 are blocked by the plate and cannot move further downward. The third spring 504 undergoes elastic compression deformation due to the compression of the horizontal plate 501 and the mounting plate 506. Its rebound force is continuously transmitted to the pressure roller 507 through the mounting plate 506, causing the pressure roller 507 to press tightly against the surface of the plate with continuously increasing pressure. The limiting rod 505 provides precise vertical guidance for the up and down movement of the mounting plate 506, preventing... During the clamping process, the mounting plate 506 may shift horizontally. At the same time, the protrusion at the top of the limiting rod 505 can limit the downward stroke of the limiting rod 505, preventing the limiting rod 505 from falling off the horizontal plate 501 and ensuring the stability of the structure. When the thickness of the processed material changes, the compression of the third spring 504 can be adjusted adaptively, eliminating the need for manual adjustment of the height of the pressure roller 507. This greatly improves the equipment's adaptability to specifications and the efficiency of changeover processing, while ensuring that materials of different thicknesses can obtain stable clamping force and ensuring no slippage during conveying.

[0058] In this embodiment, the locking and releasing assembly includes a sliding sleeve 509, a plug 510, a fourth spring 512, and a pull rope 513. The sliding sleeve 509 is fixed at both ends of the horizontal plate 501. A plug 510 is slidably provided at one end of the sliding sleeve 509 near the side of the frame 1. A fourth spring 512 is provided between the plug 510 and the inner end of the sliding sleeve 509. A slot 511 that mates with the plug 510 is provided at the bottom of the inner wall of the frame 1. The slot 511 is located on the downward movement path of the plug 510. One end of the pull rope 513 is fixedly connected to the plug 510. The other end of the pull rope 513 slides out from the inside of the sliding sleeve 509 and is fixedly connected to the pressure block 508. When the tool holder 102 is reset to the top, the plug 510 is pulled away from the slot 511 by the pull rope 513.

[0059] When the tool holder 102 moves downward and the pressure block 508 pushes the horizontal plate 501 downward, the pull rope 513 continues to relax as the pressure block 508 moves downward. The rebound force of the fourth spring 512 pushes the insert block 510 to slide and extend towards the inner wall of the frame 1. When the horizontal plate 501 moves downward until the insert block 510 is completely aligned with the slot 511 on the inner wall of the frame 1, the horizontal plate 501 is at its lowest point. Under the action of the spring force of the fourth spring 512, the insert block 510 is completely inserted into the slot 511. Through the engagement of the insert block 510 and the slot 511, the horizontal plate 501 is rigidly locked to the frame 1, preventing the horizontal plate 501 from moving upward to reset. During the initial stroke of the return stroke of the tool holder 102, the pressure block 508 moves upward with the tool holder 102, and the pull rope 513 remains relaxed. In the current state, the insert block 510 remains engaged with the slot 511, the horizontal plate 501 remains locked, and the pressure roller 507 maintains pressure on the cut plate. At this time, the drive mechanism 4 synchronously drives the rear conveyor roller 3 to rotate to complete the fixed-length conveying of the plate. When the cutter head 102 returns to the top and the plate conveying is completed, the pressure block 508 moves up to the preset position, and the pull rope 513 is just fully tensioned. The pressure block 508 drives the insert block 510 to slide and retract into the sliding sleeve 509 through the pull rope 513. The insert block 510 compresses the fourth spring 512 and completely disengages from the slot 511, completing the automatic unlocking of the horizontal plate 501. At this time, the rebound force of the second spring 502 can smoothly push the horizontal plate 501 to move upward and reset, providing conditions for the next cycle operation.

[0060] In this embodiment, the passivation liquid delivery mechanism 8 includes a cylinder 801, a piston 802, a pull rod 803, a passivation liquid storage tank 804, an inlet pipe 805, and an outlet pipe 806. The cylinder 801 is fixed to the lower side of the top of the frame 1. The piston 802 is slidably installed inside the cylinder 801. The inside of the cylinder 801 forms a liquid chamber above the piston 802. The top end of the pull rod 803 is fixedly connected to the bottom of the piston 802. The bottom end of the pull rod 803 extends vertically downward to the outside of the cylinder 801 and is fixedly connected to the top of the horizontal plate 501. The passivation liquid storage tank 804 is fixed to the top of the frame 1. The two ends of the inlet pipe 805 are respectively connected to the outlet of the passivation liquid storage tank 804 and the liquid chamber of the cylinder 801. The two ends of the outlet pipe 806 are respectively connected to the liquid chamber of the cylinder 801 and the inlet of the nozzle 6.

[0061] When the tool holder 102 moves downward and the horizontal plate 501 moves vertically downward under pressure, the horizontal plate 501 drives the piston 802 to slide vertically downward along the inner wall of the cylinder 801 via the pull rod 803. The volume of the liquid inlet chamber above the piston 802 in the cylinder 801 increases, forming a negative pressure vacuum environment. Under atmospheric pressure, the passivation liquid in the passivation liquid storage tank 804 is drawn into the liquid inlet chamber of the cylinder 801 along the liquid inlet pipe 805, completing the quantitative extraction of the passivation liquid. During the return stroke of the tool holder 102, the horizontal plate 501 is in a locked state, the piston 802 remains stationary, and the passivation liquid in the cylinder 801 is in a pressure-maintaining storage state. Status: When the cutter holder 102 returns to the top, the sheet material is conveyed, and the horizontal plate 501 is unlocked and vertically moved upward to reset, the horizontal plate 501 drives the piston 802 to slide vertically upward along the inner wall of the cylinder 801 via the pull rod 803. The volume of the liquid inlet chamber in the cylinder 801 decreases, and the internal pressure continues to increase, pressurizing the pre-extracted passivation liquid into the drain pipe 806. The passivation liquid is precisely delivered along the drain pipe 806 to the spray pipe 6 below the cutter holder 102, providing a quantitative amount of passivation liquid for cut passivation protection, realizing automatic synchronous delivery of passivation liquid, which perfectly matches the cut spraying requirements after the sheet material is conveyed.

[0062] In this embodiment, an inlet check valve is installed on the inlet pipe 805, which only allows the passivating liquid to flow from the passivating liquid storage tank 804 to the inside of the cylinder 801, and an outlet check valve is installed on the outlet pipe 806, which only allows the passivating liquid to flow from the inside of the cylinder 801 to the nozzle 6.

[0063] When piston 802 moves downward and negative pressure is formed in the inlet chamber of cylinder 801, the inlet check valve automatically opens under the action of negative pressure, and the outlet check valve automatically closes under the action of negative pressure. The passivating liquid can only flow from the passivating liquid storage tank 804 into the inlet chamber of cylinder 801 along the inlet pipe 805, effectively preventing the passivating liquid in cylinder 801 from flowing back into the passivating liquid storage tank 804, and simultaneously preventing air in the outlet pipe 806 from being drawn into cylinder 801 and affecting subsequent spraying effects; when piston 802 moves downward and negative pressure is formed in the inlet chamber of cylinder 801, the passivating liquid in cylinder 801 automatically closes under the action of negative pressure. 2. When the cylinder body 801 moves upward and the pressure in the liquid inlet chamber increases, the liquid inlet check valve automatically closes under pressure, and the liquid outlet check valve automatically opens under pressure. The passivation liquid can only flow from the cylinder body 801 into the spray pipe 6 along the drain pipe 806, effectively preventing the passivation liquid in the spray pipe 6 from flowing back into the cylinder body 801 and causing waste. At the same time, it ensures that the passivation liquid in the cylinder body 801 can be fully pressurized and delivered to the spray pipe 6, ensuring stable spraying pressure of the atomizing nozzle 7 and improving the uniformity of passivation film coating.

[0064] In this embodiment, the length of the nozzle 6 matches the length of the cutter holder 102, covering the entire cut length of the energy storage container side panel; the atomizing nozzles 7 are evenly arranged at equal intervals on both sides of the nozzle 6, achieving full-process, dead-angle-free spraying of the cut end face and avoiding the problem of local missed coating; the spray axes of the atomizing nozzles 7 on both sides form acute angles of 45°-60° with the cut end face of the plate, so that the atomized passivation liquid can be accurately sprayed on the cut surface, effectively avoiding the contamination of the zinc plating layer and waste of the agent caused by the splashing of the passivation liquid onto the plate surface.

[0065] Material loading and positioning process: Place the large-size hot-dip galvanized cold-rolled steel sheet to be processed on the front conveyor roller 104 at the feeding end of the frame 1, push the sheet to slide horizontally along the roller surface of the front conveyor roller 104, so that the front end of the sheet passes through the shearing station of the cutting table 103 and adheres to the rear conveyor roller 3 at the top of the pallet 2, completing the initial material loading and positioning; at this time, the horizontal plate 501 is in a high position under the elastic force of the second spring 502, and a feeding gap is reserved between the pressure roller 507 and the rear conveyor roller 3, which does not affect the feeding adjustment of the sheet.

[0066] The pressing and limiting process and the fixed-length shearing are synchronized: The hydraulic shearing cylinder 101 is started, and the hydraulic shearing cylinder 101 drives the knife holder 102 to move vertically downward. The knife holder 102 synchronously drives the rack 402 on the side wall and the pressure block 508 to move vertically downward. During the downward movement, the rack 402 meshes and drives the driving gear 401 and the driven gear 403 to rotate. At this time, the ratchet 406 of the one-way transmission component slides along the back of the ratchet 405, and the rotational power cannot be transmitted to the rear conveying roller 3. The rear conveying roller 3 remains stationary throughout the process to ensure that the plate has no horizontal displacement.

[0067] In the initial stage of the downward movement of the blade holder 102, the pressure block 508 first contacts the top surface of the horizontal plate 501, pushing the horizontal plate 501 to move vertically downward along the slide bar 503. The horizontal plate 501 drives the pressure roller 507 to move downward synchronously through the third spring 504, the limit rod 505, and the mounting plate 506. The pressure roller 507 first comes into contact with the upper surface of the plate, completing the pre-pressing and positioning of the plate. As the hydraulic shearing cylinder 101 continues to drive the blade holder 102 downward, the pressing action and the shearing action advance synchronously: the horizontal plate 501 continues to move downward and compresses the third spring 504. The pressing force on the plate increases synchronously with the downward stroke of the blade holder 102. The progressive flexible pressing of the plate is achieved through the adaptive compression of the third spring 504. At the same time, the upper shearing blade at the bottom of the blade holder 102 feeds synchronously towards the plate and cooperates with the lower shearing blade on the cutting table 103 to apply shearing force to the plate under continuous pressing, thus officially starting the fixed-length shearing operation.

[0068] When the cutter holder 102 descends to the lower stop of the shearing station, the upper and lower shearing blades close the mold, the plate is completely cut off, and the fixed-length breakage and separation operation of the energy storage container side panel is completed. At this time, the horizontal plate 501 descends synchronously with the pressure block 508 to the lowest preset position. The pull rope 513 remains slack throughout the descent. The insert block 510 is fully aligned with the slot 511 on the inner wall of the frame 1. The rebound force of the fourth spring 512 pushes the insert block 510 to be fully inserted into the slot 511, completing the rigid locking of the horizontal plate 501 and the frame 1. The plate remains fully compressed. At the same time, the continuous pressing of the pressure roller 507 greatly increases the frictional resistance between the plate and the rear conveying roller 3, providing sufficient and stable thrust for the fixed-length conveying of the finished plate.

[0069] Passivation liquid extraction process: During the shearing of the plate, the horizontal plate 501 moves down synchronously with the pressure block 508, and the piston 802 in the cylinder 801 moves down synchronously through the pull rod 803. The liquid inlet chamber of the cylinder 801 forms a negative pressure, the liquid inlet check valve opens, and the liquid outlet check valve closes. The passivation liquid in the passivation liquid storage tank 804 is quantitatively sucked into the cylinder 801 along the liquid inlet pipe 805, thus completing the extraction and storage of the passivation liquid.

[0070] Return pressure holding and fixed length conveying process: After the plate is sheared, the hydraulic shearing cylinder 101 drives the knife holder 102 to return vertically to reset. The knife holder 102 drives the pressure block 508 and the rack 402 to move upward synchronously. During this process, the pull rope 513 is still in a slack state, the insert block 510 is engaged with the slot 511, the horizontal plate 501 is continuously locked, and the pressure roller 507 keeps pressing the plate. At the same time, the rack 402 drives the drive gear 401 and the driven gear 403 to rotate in the opposite direction. The ratchet 406 of the one-way transmission component is engaged in the tooth groove of the ratchet 405. The power is synchronously transmitted to the roller shaft of the rear conveying roller 3, which drives the rear conveying roller 3 to rotate in one direction at a fixed length. Relying on the stable friction force under the pressing state, the sheared finished plate moves a distance to the discharge end to reserve space for the spraying of passivation liquid.

[0071] Unlocking and resetting process: When the knife holder 102 returns to the top and the fixed-length conveying of the plate is completed, the pressure block 508 moves up to the preset position, the pull rope 513 is fully tensioned, and the insert block 510 is pulled out of the slot 511, completing the automatic unlocking of the horizontal plate 501; the rebound force of the second spring 502 pushes the horizontal plate 501 to move vertically upward along the slide bar 503 to reset, and the pressure roller 507 moves up synchronously to release the plate, reserving a feeding gap for the next cycle operation.

[0072] Cut passivation spraying process: During the upward reset of the horizontal plate 501, the piston 802 in the cylinder 801 is driven to move upward synchronously through the pull rod 803. The pressure in the cylinder 801 increases, the inlet check valve closes, and the outlet check valve opens. The passivation liquid in the cylinder 801 is pressurized and transported to the spray pipe 6 along the outlet pipe 806. It is then sprayed out in an atomized state through the atomizing nozzles 7 on both sides of the spray pipe 6. The cut end face of the finished plate and the cut end face of the base material to be processed are precisely sprayed simultaneously, and the cut cross-section is fully sealed and protected against oxidation in one go.

[0073] Cyclic continuous operation: After one fixed-length shearing and cut passivation protection operation is completed, the conveyor line at the discharge end of the CNC hydraulic shearing machine is started to transport the plate. At the same time, the conveyor line at the feed end is started to transport the plate to be processed. The hydraulic shearing cylinder 101 drives the knife holder 102 to descend vertically again, repeating the above process flow 2-7 to realize the continuous processing of the side panels of the energy storage container.

[0074] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers, comprising a frame (1), a hydraulic shearing cylinder (101) fixedly installed on the top of the frame (1), a knife holder (102) fixed vertically downward at the output end of the hydraulic shearing cylinder (101), an upper shearing blade fixed at the bottom of the knife holder (102), a cutting table (103) fixed in the middle of the frame (1), and a lower shearing blade on the top of the cutting table (103) that cooperates with the upper shearing blade; Its features are: The discharge end of the frame (1) is fixed with a tray (2), and the top of the tray (2) is rotatably mounted with a rear conveying roller (3). The frame (1) is provided with a drive mechanism (4) that is linked to the reset of the knife holder (102) and a pressing limit mechanism (5) that works with the drive mechanism (4) to achieve fixed-length pressing and conveying of the plate. The power input end of the drive mechanism (4) is fixedly connected to the knife holder (102), and the output end of the drive mechanism (4) is connected to the rear conveying roller (3) for transmission. When the hydraulic shearing cylinder (101) drives the knife holder (102) to return to reset, the rear conveying roller (3) is driven to rotate at a fixed length through pure mechanical linkage. A nozzle (6) is fixed below the blade holder (102) along its length. Several sets of atomizing nozzles (7) are evenly installed on both sides of the nozzle (6) along its length. The atomizing nozzles (7) on both sides of the nozzle (6) correspond to the cut end face of the finished plate and the cut end face of the parent material to be processed, respectively. The top of the frame (1) is also provided with a passivation liquid conveying mechanism (8). The power input end of the passivation liquid conveying mechanism (8) is rigidly linked with the clamping and limiting mechanism (5). The liquid outlet end of the passivation liquid conveying mechanism (8) is connected to the nozzle (6) through a pipeline to quantitatively convey the passivation liquid to the nozzle (6) after the plate is conveyed to a fixed length.

2. The CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers according to claim 1, characterized in that: The feed end of the frame (1) is rotatably equipped with a front conveyor roller (104) for conveying the plate to be processed. The front conveyor roller (104) is evenly spaced along the length of the cutting table (103), and the surface of the front conveyor roller (104) is coated with a wear-resistant coating.

3. The CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers according to claim 1, characterized in that: The drive mechanism (4) includes a rack (402), a drive gear (401), a driven gear (403), and a one-way transmission assembly. The rack (402) is vertically fixed on the side wall of the cutter holder (102). The drive gear (401) is rotatably mounted on the support plate (2) and meshes with the rack (402). The driven gear (403) is loosely fitted on the roller shaft of the rear conveyor roller (3) and forms a coaxial rotational engagement with the roller shaft. The drive gear (401) meshes with the driven gear (403). The one-way transmission assembly is located at the center of the driven gear (403) so as to drive the rear conveyor roller (3) to rotate in one direction when the cutter holder (102) returns and keep the rear conveyor roller (3) stationary when the cutter holder (102) descends to shear.

4. The CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers according to claim 3, characterized in that: The one-way transmission assembly includes a ratchet (405), a ratchet tooth (406), and a first spring (407). A groove (404) is provided at the center of the driven gear (403). The ratchet (405) is coaxially fixed on the roller shaft of the rear conveying roller (3). The ratchet tooth (406) is hinged to the inner wall of the groove (404). The two ends of the first spring (407) are fixedly connected to the ratchet tooth (406) and the inner wall of the groove (404), respectively. The ratchet tooth (406) and the tooth groove of the ratchet tooth (405) engage in a one-way engagement.

5. The CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers according to claim 1, characterized in that: The pressing and limiting mechanism (5) includes a horizontal plate (501), a second spring (502), a slide rod (503), a mounting plate (506), an elastic pressing component, a pressure roller (507), and a locking and releasing component. The slide rod (503) is vertically fixed between the bottom of the frame (1) and the support plate (2). The horizontal plate (501) is vertically slidably installed between the slide rods (503). The second spring (502) is sleeved on the outside of the slide rods (503). The two ends of the second spring (502) abut against the top of the horizontal plate (501) and the support plate (2) respectively. The mounting plate (506) is horizontally set below the horizontal plate (501). An elastic pressing component is provided between the mounting plate (506) and the horizontal plate (501) to adaptively fit according to the thickness of the plate. The pressure roller (507) is rotatably mounted on the bottom of the mounting plate (506). The pressure roller (507) is located directly above the rear conveying roller (3). The side wall of the knife holder (102) is fixed with a pressure block (508) that cooperates with the horizontal plate (501). The locking and releasing assembly is set between the horizontal plate (501) and the frame (1) to lock when the horizontal plate (501) moves down to press the plate, reset the knife holder (102) to the top, and automatically unlock and reset after the plate is conveyed.

6. The CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers according to claim 5, characterized in that: The elastic compression assembly includes a third spring (504) and a limiting rod (505). The limiting rod (505) is vertically slidably mounted on the horizontal plate (501), and the bottom end of the limiting rod (505) is fixedly connected to the top of the mounting plate (506). The top end of the limiting rod (505) is provided with a protrusion that fits against the top of the horizontal plate (501) to limit the top end of the limiting rod (505). The outer side of the limiting rod (505) is fitted with a third spring (504), and the two ends of the third spring (504) abut against the horizontal plate (501) and the mounting plate (506) respectively.

7. The CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers according to claim 5, characterized in that: The locking and releasing assembly includes a sliding sleeve (509), a plug (510), a fourth spring (512), and a pull rope (513). The sliding sleeve (509) is fixed at both ends of the horizontal plate (501). A plug (510) is slidably provided at one end of the sliding sleeve (509) near the side of the frame (1). A fourth spring (512) is provided between the plug (510) and the inner end of the sliding sleeve (509). A slot (511) that mates with the plug (510) is provided at the bottom of the inner wall of the frame (1). The slot (511) is located on the downward path of the plug (510). One end of the pull rope (513) is fixedly connected to the plug (510). The other end of the pull rope (513) slides out from the inside of the sliding sleeve (509) and is fixedly connected to the pressure block (508). When the tool holder (102) is reset to the top, the plug (510) is pulled away from the slot (511) by the pull rope (513).

8. The CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers according to claim 5, characterized in that: The passivation liquid delivery mechanism (8) includes a cylinder (801), a piston (802), a pull rod (803), a passivation liquid storage tank (804), an inlet pipe (805), and a drain pipe (806). The cylinder (801) is fixed to the lower side of the top of the frame (1). The piston (802) is slidably installed inside the cylinder (801). The interior of the cylinder (801) forms a liquid chamber above the piston (802). The top of the pull rod (803) is connected to the piston (802). The bottom of the rod (803) is fixedly connected to the cylinder (801), and the bottom end of the rod (803) extends vertically downward to the outside of the cylinder (801) and is fixedly connected to the top of the cross plate (501). The passivation liquid storage tank (804) is fixed to the top of the frame (1). The two ends of the inlet pipe (805) are respectively connected to the outlet of the passivation liquid storage tank (804) and the liquid chamber of the cylinder (801). The two ends of the drain pipe (806) are respectively connected to the liquid chamber of the cylinder (801) and the inlet of the nozzle (6).

9. The CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers according to claim 8, characterized in that: An inlet check valve is installed on the inlet pipe (805) to allow the passivating liquid to flow from the passivating liquid storage tank (804) to the inside of the cylinder (801), and a drain check valve is installed on the drain pipe (806) to allow the passivating liquid to flow from the inside of the cylinder (801) to the nozzle (6).

10. The CNC hydraulic shearing machine for fixed-length processing of side panels of energy storage containers according to claim 1, characterized in that: The length of the nozzle (6) matches the length of the cutter holder (102). The atomizing nozzles (7) are evenly arranged at equal intervals on both sides of the nozzle (6). The spray axes of the atomizing nozzles (7) on both sides form acute angles of 45°-60° with the cut end face of the plate.

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