Quick switching structure of multi-mode alternating type lead-acid storage battery grid casting equipment

Abstract

The invention relates to the technical field of grid casting, and discloses a quick switching structure of multi-mode alternating type lead-acid storage battery grid casting equipment, which comprises a switching part, and the switching part comprises a support frame fixed on the upper surface of a workbench. The quick switching structure of the multi-mold alternating type lead-acid storage battery grid casting equipment can effectively solve the problems that in the prior art, casting molds are mostly vertically placed, when machined lead-acid storage battery grids are demolded through casting equipment, the grids which are not completely cooled and still in a soft state fall downwards, and the casting efficiency is low. The grid is supported by the bearing surface with a large slope below the grid, the grid is bent in the falling process under the action of the slope, even if the grid is pressed to be straight subsequently, the grid is subjected to large deformation twice, the microstructure of the grid is seriously damaged by the repeated deformation, the mechanical strength and the corrosion resistance of the grid are reduced, and the service life of the grid is prolonged. And the defective rate is increased, so that the production cost is greatly increased.

Description

Technical Field

[0001] The present invention relates to the technical field of grid casting, and particularly relates to a rapid switching structure of a multi-mode alternating lead-acid battery grid casting device. Background Art

[0002] Lead-acid batteries play an important role in the energy storage and supply system of modern society and are widely used in many fields such as automobile starting, industrial backup power supplies, and renewable energy energy storage. As the core component of lead-acid batteries, the quality of the grid directly affects the performance and service life of the battery.

[0003] In the prior art, most casting molds are vertically placed. When the casting equipment demolds the processed lead-acid battery grid, the moving mold and the fixed mold are separated. At this time, the grid that has not yet fully cooled and is still in a relatively soft state drops downward, and the bearing surface with a large slope below supports it. Under the action of the slope, the grid bends during the dropping process. Even if it is straightened later, the grid has undergone two large deformations. This repeated deformation not only seriously damages the microstructure of the grid, reduces its mechanical strength and corrosion resistance, but also increases the defective rate, resulting in a substantial increase in production costs. Summary of the Invention

[0004] Aiming at the above-mentioned drawbacks of the prior art, the present invention provides a rapid switching structure of a multi-mode alternating lead-acid battery grid casting device, which can effectively solve the problems in the prior art that most casting molds are vertically placed. When the casting equipment demolds the processed lead-acid battery grid, the moving mold and the fixed mold are separated. At this time, the grid that has not yet fully cooled and is still in a relatively soft state drops downward, and the bearing surface with a large slope below supports it. Under the action of the slope, the grid bends during the dropping process. Even if it is straightened later, the grid has undergone two large deformations. This repeated deformation not only seriously damages the microstructure of the grid, reduces its mechanical strength and corrosion resistance, but also increases the defective rate, resulting in a substantial increase in production costs.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: The present invention provides a rapid switching structure of a multi-mode alternating lead-acid battery grid casting device, including: A conversion part, the conversion part includes a support frame fixed on the upper surface of the workbench. The support frame is rotatably connected with a roller through a rotating shaft arranged on its outer side. One side of the roller is fixedly connected with a baffle, and the baffles are symmetrically distributed at both ends of the roller. The outer surface of the roller is provided with a module that can be used for casting and forming; The blanking part, the blanking part includes a conveyor belt arranged below the drum, the conveyor belt is fixedly connected to the upper surface of the workbench through a support plate arranged on its side, the conveyor belt adopts an inclined design, and the highest point of the upper surface of the conveyor belt is close to the drum side, and a bearing component for supporting the grid after demoulding is arranged on the upper surface of the conveyor belt; Among them, the bearing component includes a bearing plate, the bearing plate is fixedly connected with a support column through a connecting block fixed on its side, and the outer circumferential surface of the support column is slidably connected with a bottom column fixedly connected to the upper surface of the workbench.

[0006] Further, it also includes a ladle for pouring liquid metal into the mold, and a tensioning member is arranged on the outer surface of the support plate.

[0007] Further, a spring connected to the lower surface of the connecting block is sleeved on the outer circumferential surface of the support column, and one end of the spring away from the connecting block is connected to the top end of the bottom column.

[0008] Further, the tensioning member includes a rotating rod, the rotating rod is rotatably connected to the side of the support plate away from the conveyor belt through a shaft rod arranged inside, a torsion spring connected to the outer surface of the support plate is sleeved on the outer surface of the shaft rod, and a tensioning wheel that fits the inner wall surface of the conveyor belt is rotatably connected to the end of the rotating rod away from the torsion spring.

[0009] Further, the bearing plate as a whole adopts an inclined design with the same inclined angle as the upper surface of the conveyor belt.

[0010] Further, the bearing plate is rollingly connected with a ball that fits the upper surface of the conveyor belt through a circular groove opened on its lower surface, and a plurality of the balls are arranged in an array.

[0011] Further, the mold includes a fixed mold fixedly installed on the outer surface of the drum, a hydraulic rod is arranged inside the drum, the hydraulic rod penetrates the surface of the fixed mold and is fixedly connected with a movable mold, and one side of the movable mold slides on the outer surface of the side of the baffle close to the drum.

[0012] Further, the lower surface of the bearing plate adopts an arc edge design, a cavity is jointly opened on the adjacent surfaces of the fixed mold and the movable mold, a gate communicating with the outside is arranged in the cavity, and the gate of one mold close to the ladle side is close to the upper side.

[0013] Further, a coolant channel is opened inside the mold, and the density of the coolant channel is greater on the side close to the gate.

[0014] The technical solution provided by the present invention, compared with the prior art, has the following beneficial effects: The present invention is provided with a drum, a module and a bearing assembly. The conversion part includes multiple workstations. The casting workstation is on the left side. After casting, the module remains closed until it reaches the demolding workstation below. Then, the moving mold slides towards the side away from the rotating shaft, and the ejector rod inside the module ejects the grid from the casting cavity. The drum continues to rotate. When the surface of the moving mold is parallel to the surface of the bearing plate, the grid on the surface of the moving mold slides towards the outer surface of the bearing plate under the action of gravity and centrifugal force, realizing the blanking process of the grid. During this blanking process, the bending deformation of the just-cast grid caused by falling from a high place is avoided. When blanking, the grid still maintains a flat state and does not need to be straightened at a large angle for the second time, preventing the destruction of the microstructure inside the grid and the generation of defects, such as the dislocation and slip of metal internal grains and the appearance of tiny cracks, etc., thereby ensuring the mechanical properties and dimensional accuracy of the grid, improving the stability and consistency of product quality, and helping to improve the corrosion resistance and service life of the grid. Brief Description of the Drawings

[0015] 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 use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 It is a cross-sectional view of the workbench of an embodiment of the present invention; Figure 3 It is a structural schematic diagram of the support frame, drum and baffle of an embodiment of the present invention; Figure 4 It is a structural schematic diagram of the conveyor belt, bearing assembly and tensioning member of an embodiment of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the bearing assembly of an embodiment of the present invention; Figure 6 It is a structural schematic diagram of the tensioning member of an embodiment of the present invention; Figure 7 For an embodiment of the present invention Figure 2 It is a partial enlarged structural schematic diagram of part A in

[0017] The reference numerals in the figure respectively represent: 1. Conversion part; 11. Workbench; 12. Support frame; 13. Roller; 131. Baffle; 14. Module; 141. Fixed mold; 142. Hydraulic rod; 143. Movable mold; 2. Blank discharging part; 21. Conveyor belt; 22. Carrying assembly; 221. Carrying plate; 222. Support column; 223. Bottom column; 224. Spring; 225. Ball; 23. Tensioning part; 231. Rotating rod; 232. Torsion spring; 233. Tensioning wheel; 3. Ladle. Specific embodiments

[0018] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0019] The present invention will be further described below with reference to the embodiments.

[0020] Embodiment:

[0021] Please refer to Figures 1 - 7 , the present invention provides a technical solution: a rapid switching structure of a multi-mode alternating lead-acid battery grid casting device, including: Conversion part 1, the conversion part 1 includes a support frame 12 fixed on the upper surface of the workbench 11. The support frame 12 is rotatably connected with a roller 13 through a rotating shaft arranged on its outer side. One side of the roller 13 is fixedly connected with a baffle 131. The baffles 131 are symmetrically distributed at both ends of the roller 13. A module 14 for casting and forming is arranged on the outer surface of the roller 13; a dovetail groove is opened at the plane of the circumferential outer surface of the baffle 131; Blank discharging part 2, the blank discharging part 2 includes a conveyor belt 21 arranged below the roller 13. The conveyor belt 21 is fixedly connected with the upper surface of the workbench 11 through a support plate arranged on its side. The conveyor belt 21 adopts an inclined design, and the highest point on the upper surface of the conveyor belt 21 is close to the side of the roller 13. A carrying assembly 22 for supporting the demolded grid is arranged on the upper surface of the conveyor belt 21; Wherein, the carrying assembly 22 includes a carrying plate 221. The carrying plate 221 is fixedly connected with a support column 222 through a connecting block fixed on its side. The circumferential outer surface of the support column 222 is slidably connected with a bottom column 223 fixedly connected with the upper surface of the workbench 11.

[0022] It further includes a ladle 3 for pouring liquid metal into the module 14, and a tensioning part 23 is arranged on the outer surface of the support plate.

[0023] A spring 224 is sleeved on the circumferential outer surface of the support column 222 and is connected to the lower surface of the connection block. One end of the spring 224 away from the connection block is connected to the top end of the bottom column 223.

[0024] The tensioning member 23 includes a rotating rod 231. There are two rotating rods 231, which are symmetrically arranged on both sides of the conveyor belt 21. The rotating rod 231 is rotationally connected to the side of the support plate away from the conveyor belt 21 through a shaft rod arranged inside. A torsion spring 232 connected to the outer surface of the support plate is sleeved on the outer surface of the shaft rod. One end of the rotating rod 231 away from the torsion spring 232 is rotationally connected to a tensioning wheel 233 that fits on the inner wall surface of the conveyor belt 21. In the initial state, the torsion spring 232 drives the rotating rod 231 and the tensioning wheel 233 to press downward, so that the conveyor belt 21 is in a taut state.

[0025] The overall design of the bearing plate 221 is inclined at the same angle as the upper surface of the conveyor belt 21.

[0026] The bearing plate 221 is rotationally connected through a circular groove opened on its lower surface with a ball 225 that fits on the upper surface of the conveyor belt 21. A plurality of balls 225 are arranged in an array. The bearing plate 221 contacts the upper surface of the conveyor belt 21 through the balls 225 to reduce friction.

[0027] The module 14 includes a fixed mold 141 fixedly installed on the outer surface of the roller 13. A hydraulic rod 142 is arranged inside the roller 13. The hydraulic rod 142 penetrates the surface of the fixed mold 141 and is fixedly connected to a movable mold 143. One side of the movable mold 143 slides on the outer surface of the baffle 131 close to the roller 13.

[0028] The lower surface of the bearing plate 221 is designed with an arc edge. A cavity is jointly opened on the adjacent surfaces of the fixed mold 141 and the movable mold 143. A gate communicating with the outside is arranged in the cavity. The gate of one module 14 close to the ladle 3 is close to the upper side.

[0029] A coolant channel is opened inside the module 14, and the density of the coolant channel close to the gate is relatively large.

[0030] The process of installing the module 14: Pass the fixed mold 141 through the hydraulic rod 142 and fit it on the plane of the circumferential outer part of the roller 13. Use tools such as bolts and positioning pins to tightly fix the fixed mold 141 at this position. Then move the movable mold 143 towards the fixed mold 141. There are five planes on both the baffle 131 and the circumferential outer surface of the roller 13. A dovetail groove is opened at the plane of the circumferential outer surface of the baffle 131. The two sides of the movable mold 143 are designed into a dovetail shape that matches it. Insert the dovetail part of the movable mold 143 into the dovetail groove of the baffle 131, and then fix the movable mold 143 to the output end of the hydraulic rod 142 through external fasteners.

[0031] Process of casting the grid In practical applications, the roller 13 rotates intermittently under the control of a PLC. The outer surface of the roller 13 is arrayed with five planes, and the five modules 14 correspond one-to-one with the five planes, corresponding to different working conditions: casting, demolding, cleaning, spraying mold release agent, and film combination.

[0032] When the module 14 is at the top near the ladle 3 (left side), the hydraulic rod 142 inside the roller 13 drives the moving mold 143 to move towards the fixed mold 141 until the adjacent surfaces of the two are completely fitted. The roller 13 rotates intermittently counterclockwise. When it rotates to the next working position, the hydraulic rod 142 always maintains this state (the moving mold 143 and the fixed mold 141 are closely fitted). At this time, the cavity formed between the adjacent surfaces of the moving mold 143 and the fixed mold 141 is in a slightly inclined state (the gate position is inclined towards the ladle 3). After the ladle 3 detects that the module 14 has rotated to this position, it tilts towards the roller 13. Due to the inclination of the module 14, the liquid metal inside the ladle 3 slowly flows along each gap in the pouring cavity from the gate above the moving mold 143 and the fixed mold 141, gradually filling the entire pouring cavity. During this process, the air in the cavity will be discharged from the gaps at the high positions or specially arranged exhaust holes along with the flow of the liquid metal. The inclination angle can control the flow speed and direction of the liquid metal, reduce splashing and turbulence, and make the metal liquid fill the pouring cavity in the module 14 more evenly, which helps to improve the forming quality of the grid and reduce defects such as air holes and material shortage. When the filling of the liquid metal is completed, the ladle 3 rotates back to its original state.

[0033] The roller 13 continues to rotate counterclockwise, rotating this module 14 to the next working position. During this process, the moving mold 143 still fits with the outer surface of the fixed mold 141 under the action of the hydraulic rod 142. This module 14 gradually changes from an inclined state to a horizontal state. During the rotation, the liquid metal is further evenly distributed inside the cavity of the module 14 under the combined action of centrifugal force and gravity, supplementing the possible parts with insufficient liquid metal, and at the same time making the impurities and gases in the liquid metal more likely to gather towards the surface. When this module 14 completely rotates to the blanking position, it remains in this state unchanged, allowing the liquid metal to fully solidify and form in the pouring cavity of the module 14. At this time, the shape and structure of the grid gradually stabilize.

[0034] Process of blanking the grid After the grid solidification is completed, the hydraulic rod 142 first slides the moving mold 143 outward in the direction away from the axis of the roller 13, separating the moving mold 143 from the fixed mold 141 by a certain distance, creating a certain gap between the module 14 and the grid, and using the ejection mechanism inside the module 14 to demold the grid. At this time, the module 14 is in a horizontal state parallel to the upper surface of the workbench 11. The cast grid no longer engages with the inner wall of the cavity but is placed on the upper surface of the moving mold 143 in a horizontal state. At this time, the lower side of the moving mold 143 slightly contacts the upper surface of the bearing plate 221.

[0035] The roller 13 continues to rotate counterclockwise, transforming this group of modules 14 to the next station. During this process, the hydraulic rod 142 drives the entire moving mold 143 to slide outward. The moving mold 143 is at the position with the maximum distance from the outer surface of the fixed mold 141 within its stroke range. At this time, the lower surface of the moving mold 143 is parallel to the upper surface of the bearing plate 221, and the overall slope of the bearing plate 221 is the same as the slope of the upper surface of the conveyor belt 21, being in a parallel state. After the moving mold 143 is pushed outward by the hydraulic rod 142, the outer surface of the moving mold 143 completely fits with the outer surface of the bearing plate 221, and presses the bearing plate 221, the connecting block, and the support column 222 vertically downward, causing the bottom end of the support column 222 to slide into the bottom column 223. When the lower surface of the moving mold 143 is parallel to the upper surface of the bearing plate 221, the grid on the upper surface of the moving mold 143 is under the action of gravity and planar support force, and under the action of these two forces, it begins to have a tendency to slide downward and to the left.

[0036] The conveyor belt 21 is relatively long. In the initial state, the surface of the conveyor belt 21 is not subject to force, and the tensioning wheel 233 presses downward inside the conveyor belt 21 to keep the conveyor belt 21 in a taut state.

[0037] The spring 224 sleeved on the outer surface of the support column 222 and located between the connecting block and the bottom column 223 undergoes elastic deformation under the extrusion force. At the same time, the conveyor belt 21 located below the bearing plate 221 is extruded. The conveyor belt 21 at this position is in close contact with the lowest point of the outer surface of the ball 225. Since the material of the conveyor belt 21 is soft, the conveyor belt 21 at this position collapses after being extruded. Since the length of the conveyor belt 21 is fixed, correspondingly, the tension pulley 233 inside the conveyor belt 21 rotates upward and lifts after being extruded. During this process, the upper surface of the conveyor belt 21 always contacts the outer surface of the ball 225 below the bearing plate 221, reducing the friction force, which is beneficial to improving the service life of the conveyor belt 21 (both sides of the lower surface of the bearing plate 221 perpendicular to the conveyor belt 21 are designed with arc edges. When the moving mold 143 presses down, the conveyor belt 21 still continues to rotate, avoiding the problem that the relatively sharp sides of the bearing plate 221 scratch the outer surface of the conveyor belt 21 or even cause it to break). At the same time, the bearing plate 221 separates the conveyor belt 21 from the module 14, preventing the waste heat of the module 14 from directly contacting the surface of the conveyor belt 21 and causing the outer surface of the conveyor belt 21 to deform due to heat.

[0038] The moving mold 143 remains in this separated state, and the roller 13 drives the group of modules 14 to rotate counterclockwise to the next station at a relatively fast speed. The grid on the surface of the moving mold 143 is affected by the inclined surface of the moving mold 143. Due to the initial sliding tendency, the distance from its axis to the axis of rotation gradually increases, which further leads to an increase in centrifugal force. When the resultant force of the centrifugal force and the component force of gravity along the surface of the moving mold 143 is greater than the friction force, the grid starts to slide relative to the surface of the moving mold 143. Since the inclination angle of the surface of the moving mold 143 gradually increases during the rotation process, the right side of the surface of the moving mold 143 is getting higher and higher, and the component force of gravity along the surface of the moving mold 143 is also increasing. Under the combined action of the centrifugal force and the component force of gravity along the surface of the moving mold 143, the grid accelerates and slides to the left along the surface of the moving mold 143.

[0039] As the grid continues to slide to the left, it gradually approaches the edge position on the surface of the moving mold 143. When approaching the edge, the supporting force on the grid gradually decreases, while the effects of gravity and centrifugal force become more significant. The grid quickly falls on the edge of the surface of the moving mold 143. At this time, the center of gravity of the grid exceeds the support range of the surface of the moving mold 143, and under the action of gravity, the grid begins to fall towards the bearing plate 221 below. When the grid falls from the edge of the surface of the moving mold 143, it makes a free-fall motion under the action of gravity. Since the sliding direction and speed of the grid are relatively stable before falling, and the distance between the surface of the moving mold 143 and the upper surface of the bearing plate 221 is relatively close, the grid will fall onto the upper surface of the bearing plate 221 in a relatively stable posture under the action of gravity. The bearing plate 221 is an inclined plane, and the grid will not bend after falling above the bearing plate 221 and still remains relatively straight. At this time, the lower surface of the moving mold 143 is parallel to the upper surface of the bearing plate 221, and the moving mold 143 still remains separated from the fixed mold 141. Taking the moving mold 143 of this group in this state as an example, the edge of its lower surface close to the left side adopts a curved surface design (ensuring the smoothness when the moving mold 143 separates from the bearing plate 221). At this time, this curved surface still contacts the upper surface of the bearing plate 221.

[0040] As the roller 13 continues to rotate counterclockwise, it will drive the module 14 to move together until the curved surface on the lower surface of the moving mold 143 separates from the upper surface of the bearing plate 221. After the upper surface of the bearing plate 221 loses the extrusion of the module 14, under the action of the spring 224, the support column 222, the connecting block and the bearing plate 221 synchronously return to the initial state upward, and the balls 225 on its lower surface no longer contact the upper surface of the conveyor belt 21. After the upper part of the conveyor belt 21 loses the extrusion, it is no longer in a taut state. Correspondingly, the tension pulley 233 inside the conveyor belt 21 rotates downward around the shaft rod under the action of the torsion spring 232, and the conveyor belt 21 is restored to the taut state again. At this time, the upper surface of the conveyor belt 21 slightly contacts the outer circumferential surface of the balls 225 again.

[0041] During the upward recovery process of the bearing plate 221, it has a certain vibration force, which can vibrate and drop the grid above the bearing plate 221 onto the upper surface of the conveyor belt 21 and move it towards the side close to the ladle 3. Since the slopes of the upper surface of the bearing plate 221 and the upper surface of the conveyor belt 21 are the same in this state, when the grid slides onto the upper surface of the conveyor belt 21, it will not cause bending deformation of the grid. At the same time, the spring 224 can reduce the vibration and avoid problems such as dislocation and slip of the crystal grain structure inside the grid that has just been cast due to excessive vibration intensity, which destroys the originally forming ordered lattice structure and leads to an increase in internal curves, such as fine cracks and pores, ensuring the stability and density of the internal structure of the grid.

[0042] After the grid falls on the upper surface of the conveyor belt 21 and is conveyed away, the roller 13 rotates counterclockwise to the next working station. At this time, the module 14 is still in the mold-opening state. Use external tools to clean the module 14. Blow and clean the adjacent surfaces of the moving mold 143 and the fixed mold 141 through an air gun or the like to remove the residual substances. After the impurities are removed, the roller 13 continues to rotate counterclockwise, and the cavity plane between the moving mold 143 and the fixed mold 141 is sprayed with a mold release agent to facilitate the smooth demolding of the grid. After the mold release agent is sprayed, the roller 13 continues to rotate counterclockwise, driving the group of modules 14 to return to the initial mold-closing working station. The output end of the hydraulic rod 142 is fixedly connected to the moving mold 143, and the moving mold 143 slides towards the fixed mold 141 to complete the mold-closing action, preparing for the casting of the next working station.

[0043] In summary, the casting equipment has the following advantages: Advantage 1: The conversion part 1 includes multiple working stations. The casting working station is on the left side. After casting, the module 14 remains in the closed state until it reaches the demolding working station below. The moving mold 143 slides towards the side away from the rotating shaft, and the ejection mechanism inside the module 14 ejects the grid from the casting cavity. When the roller 13 continues to rotate and the surface of the moving mold 143 is parallel to the surface of the bearing plate 221, the grid on the surface of the moving mold 143 slides towards the outer surface of the bearing plate 221 under the action of gravity and centrifugal force, realizing the blanking process of the grid. During this blanking process, the bending deformation of the just-cast grid caused by falling from a high place is avoided. When blanking, the grid still maintains a flat state and does not require secondary large-angle correction and straightening, preventing the destruction of the internal microstructure of the grid and the generation of defects, such as problems like dislocation and slip of metal internal grains and the appearance of tiny cracks, etc., thus ensuring the mechanical properties and dimensional accuracy of the grid, improving the stability and consistency of product quality, and contributing to improving the corrosion resistance and service life of the grid.

[0044] Advantage 2: A plurality of modules 14 are installed on the outer surface of the roller 13, corresponding to multiple different working conditions (casting, demolding, cleaning, spraying mold release agent, mold closing). By controlling the intermittent rotation of the roller 13 through a PLC, multi-station collaborative operation is realized, improving production efficiency and making the entire casting process orderly and continuous.

[0045] Advantage 3: When the grid drops from inside the module 14 onto the upper surface of the carrier plate 221, the upper surface of the moving die 143 is parallel to the upper surface of the carrier plate 221. When the grid drops from the upper surface of the carrier plate 221 onto the upper surface of the conveyor belt 21, the upper surface of the carrier plate 221 is parallel to the upper surface of the conveyor belt 21. Under the action of the loading and unloading assembly 22, the inclination angles of the planes where the grid is transferred twice are almost the same. The parallel transfer surfaces make the external forces received by the grid during the blanking process relatively uniform, and large impact forces or side forces will not be generated due to inclined or uneven surfaces. Therefore, the grid can slide smoothly, reducing the possibility of deformation and damage of the grid caused by collision or shaking.

[0046] Advantage 4: The parallel surfaces greatly reduce the scratching and friction between the grid and the transfer surface during the transfer process of the grid. Due to the parallel surfaces, the contact between the grid and the carrier plate 221 and the conveyor belt 21 is relatively uniform, the contact area is large, and the pressure per unit area is small, thereby reducing the risk of surface damage to the grid and being beneficial to ensuring the surface quality of the grid.

[0047] Advantage 5: The carrier plate 221 is made of a hard material, which avoids the situation that when the battery grid is blanked from the module 14, the lower surface of the moving die 143 presses the conveyor belt 21, pressing down the upper surface of the flexible conveyor belt 21 to form a depression, causing the grid to fall on the upper surface of the curved conveyor belt 21. The grid, which still has a certain amount of heat and is in a relatively soft state, deforms under the action of the curved conveyor belt 21. Therefore, it is not necessary to straighten the grid with a large bending coefficient again, reducing the number of times of its deformation and ensuring the strength of the grid under the microscope.

[0048] Advantage 6: The carrier plate 221 separates the module 14 from the conveyor belt 21, avoiding the direct conduction of heat from the module 14 with residual heat to the upper surface of the conveyor belt 21, and avoiding the stretching deformation and even breakage of the conveyor belt 21 caused by high temperature. The balls 225 on the lower surface of the carrier plate 221 are in contact with the upper surface of the conveyor belt 21, reducing the friction force, reducing the wear of the conveyor belt 21, and improving the overall service life of the conveyor belt 21.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fast switching structure for a multi-mode alternating lead-acid battery grid casting device, characterized in that: include: A conversion part (1), the conversion part (1) comprising a support frame (12) fixed on the upper surface of a workbench (11), the support frame (12) being rotatably connected to a roller (13) via a rotating shaft arranged on the outer side thereof, a baffle (131) being fixedly connected to one side of the roller (13), the baffles (131) being symmetrically distributed at both ends of the roller (13), and a mold group (14) that can be used for casting is arranged on the outer surface of the roller (13); A material discharge portion (2), the material discharge portion (2) comprising a conveyor belt (21) arranged below the roller (13), the conveyor belt (21) being fixedly connected to the upper surface of the workbench (11) via a support plate arranged on the side thereof, the conveyor belt (21) being of inclined design, and the highest point of the upper surface of the conveyor belt (21) being close to one side of the roller (13), and the upper surface of the conveyor belt (21) being provided with a bearing assembly (22) for supporting the demoulding grid; The bearing assembly (22) comprises a bearing plate (221), the bearing plate (221) being fixedly connected to a support column (222) via a connecting block fixed to a side thereof, and a bottom column (223) fixedly connected to an upper surface of a workbench (11) is slidably connected to a circumferential outer surface of the support column (222).

2. The fast switching structure of a multi-mode alternating lead-acid battery grid casting device according to claim 1, characterized in that: It also includes a ladle (3) for pouring liquid metal into the mold assembly (14), and a tensioning member (23) is provided on the outer surface of the support plate.

3. The fast switching structure of a multi-mode alternating lead-acid battery grid casting device according to claim 1, characterized in that: A spring (224) connected to the lower surface of the connection block is sleeved on the circumferential outer surface of the support column (222), and one end of the spring (224) away from the connection block is connected to the top end of the bottom column (223).

4. The fast switching structure of a multi-mode alternating lead-acid battery grid casting device according to claim 2, characterized in that: The tensioning member (23) comprises a rotating rod (231), wherein the rotating rod (231) is rotatably connected to a side of a support plate away from the conveyor belt (21) via an internally arranged shaft rod, the outer surface of the shaft rod is sleeved with a torsion spring (232) connected to the outer surface of the support plate, and one end of the rotating rod (231) away from the torsion spring (232) is rotatably connected to a tensioning wheel (233) that is in contact with the inner wall surface of the conveyor belt (21).

5. The fast switching structure of a multi-mode alternating lead-acid battery grid casting device according to claim 4, characterized in that: The entire support plate (221) is designed to be inclined at the same angle as the upper surface of the conveyor belt (21).

6. The fast switching structure of a multi-mode alternating lead-acid battery grid casting device according to claim 5, characterized in that: The bearing plate (221) is rollingly connected to a ball (225) that fits the upper surface of the conveyor belt (21) via a circular groove provided on the lower surface thereof, and a plurality of balls (225) are arranged in an array.

7. The fast switching structure of a multi-mode alternating lead-acid battery grid casting device according to claim 2, characterized in that: The die set (14) comprises a fixed die (141) fixedly mounted on the outer surface of the drum (13); a hydraulic rod (142) is arranged inside the drum (13); the hydraulic rod (142) penetrates the surface of the fixed die (141) and is fixedly connected to a movable die (143); one side of the movable die (143) slides with the outer surface of the baffle (131) on a side close to the drum (13).

8. The fast switching structure of a multi-mode alternating lead-acid battery grid casting device according to claim 6, characterized in that: The lower surface of the bearing plate (221) adopts a circular arc edge design.

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