Electrolyte filling device for lithium battery production

Abstract

The invention discloses an electrolyte filling device for lithium battery production, which comprises a shell, a stirring rod, a conveying block, a placing block, a conveying cylinder, a power device, a rotating assembly and a reciprocating assembly, when the electrolyte filling device is used, a battery is placed in a placing groove, a double-shaft motor drives a first driving shaft and a second driving shaft to rotate; the second driving shaft drives the rotating assembly to operate so as to drive the rotating shaft to intermittently rotate, the rotating shaft intermittently rotates to drive the batteries placed in the conveying groove to sequentially rotate to the bottom of the filling pipe, and the second driving shaft drives the reciprocating assembly to operate so as to drive the guide block to slide in a reciprocating mode. The rotating rod drives the stirring rod to rotate to stir the electrolyte in the shell, the winding drum drives the connecting rope to wind and unwind, in the winding process, the pressing rod moves downwards to enable the sealing block to extrude the electrolyte into the battery, the transverse plate moves upwards to drive the conveying barrel and the filling pipe to move upwards, and after the transverse plate moves upwards to a proper height, the pressing rod pulls the sealing block to slide upwards to generate negative pressure; and the electrolyte is sucked into the conveying cylinder through the liquid inlet pipe.

Description

Technical Field

[0001] The invention relates to a filling device, in particular to an electrolyte filling device for lithium battery production. Background Art

[0002] Lithium battery is a primary battery with lithium metal or lithium alloy as negative electrode material and non-aqueous electrolyte solution. It is different from rechargeable lithium-ion battery and lithium-ion polymer battery. The inventor of lithium battery is Edison. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Therefore, lithium battery has not been used for a long time. With the development of microelectronics technology in the late 20th century, the number of miniaturized devices has increased, which puts high demands on power sources. Lithium battery has entered the large-scale practical stage.

[0003] The existing electrolyte filling device does not stir the electrolyte sufficiently and cannot ensure the activity of the electrolyte. At the same time, during the filling process, only a single battery can be filled each time. After the filling is completed, the battery needs to be replaced manually and another battery to be filled is placed in the same position for filling. This method is time-consuming and labor-intensive, inefficient, and has certain risks. Therefore, it is necessary to design an electrolyte filling device for lithium battery production to solve this problem. Summary of the invention

[0004] The object of the present invention is to provide an electrolyte filling device for lithium battery production to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: The top of the shell is provided with a guide groove, and a guide block is slidably installed in the guide groove. A rotating rod is rotatably installed on the guide block, and one end of the rotating rod extends into the shell, and a stirring rod is installed on the rotating rod. A driving gear is meshed with the gear plate; a vertical plate is symmetrically arranged on the shell, and a sliding groove and a limiting groove are provided on the vertical plate, a horizontal plate is slidably installed in the sliding groove, a limiting block is slidably installed in the limiting groove, a cross bar is installed on one side of the limiting block, a placing block is installed at one end of the cross bar away from the limiting block, a placing groove is provided on the placing block, a conveying cylinder is fixedly arranged in the placing groove, a sealing block is slidably installed in the conveying cylinder, a filling pipe is provided at the bottom of the conveying cylinder, a pressure rod is installed on the sealing block, and the pressure rod is connected to the cross plate at one end away from the sealing block, and the injection pipe is provided with a pressure rod The transmission mechanism that this outer cover is connected with this outer cover is that this outer cover is provided with a circle, and this outer cover is provided with a circle.

[0006] As a further solution of the present invention: the positioning device includes a telescopic member, and the telescopic member is symmetrically arranged in the conveying trough, one end of the telescopic member is connected to the side wall of the conveying trough, and the other end is connected to the clamping plate.

[0007] As a further solution of the present invention: the power device includes a dual-axis motor, the dual-axis motor is installed on a driving plate, the output ends of the dual-axis motor are respectively installed with a first drive shaft and a second drive shaft, the first drive shaft is connected to the rotating component, and the second drive shaft is connected to the reciprocating component at one end away from the dual-axis motor.

[0008] As a further solution of the present invention: the reciprocating assembly includes a rotating member, one end of which is connected to the second driving shaft, and the other end is rotatably connected to a movable rod, and the end of the movable rod away from the rotating member is hinged to the guide block.

[0009] As a further solution of the present invention: the rotating assembly includes a mounting plate, the mounting plate is fixedly mounted on the supporting plate, and a transmission rod is rotatably mounted on the mounting plate; A half gear is installed on the first driving shaft, a driven gear is arranged on one side of the half gear, the half gear is intermittently meshed with the driven gear, the driven gear is installed on the transmission rod, a connecting unit is installed on the transmission rod, and the connecting unit is connected to the rotating shaft at one end away from the transmission shaft.

[0010] As a further solution of the present invention: the length of the sliding groove is greater than the length of the limiting groove.

[0011] As a further solution of the present invention: the telescopic member is an electric telescopic rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: when the device is used, the battery to be filled with electrolyte is placed in the placement slot, and the installed telescopic parts drive the splints connected thereto to move toward each other, and the splints move toward each other to limit and fix the battery, thereby improving the stability of the device, and the installed double-axis motor drives the first drive shaft and the second drive shaft connected thereto to rotate, and the installed second drive shaft drives the half gear connected thereto to rotate, and the rotation of the half gear drives the transmission rod to rotate through intermittent meshing with the driven gear, and the rotation of the transmission rod drives the intermittent rotation of the rotating shaft through the connecting unit, and the intermittent rotation of the rotating shaft can The conveying block is driven to rotate intermittently, and the batteries placed in multiple conveying grooves are transported to the bottom of the filling pipe in sequence. The installed second driving shaft drives the rotating member connected thereto to rotate. The rotation of the rotating member drives the guide block connected thereto to slide back and forth in the guide groove through the movable rod. During the reciprocating sliding process, the guide block drives the gear at one end of the rotating rod to engage with the toothed plate. The toothed plate engages with the gear to drive the rotating rod to rotate. The rotation of the rotating rod drives the stirring rod to rotate while also moving horizontally, so that the stirring rod stirs the electrolyte in the shell to ensure the activity of the electrolyte and increase the uniformity of the electrolyte. In this process, the reel also The connecting rope will be driven to reel in and unwind. During the reeling process of the connecting rope, the horizontal plate at one end will be pulled downward, the elastic component will be compressed to generate elastic force, the horizontal plate will move downward and then drive the placement block to move downward through the pressure rod. The placement block moves downward and drives the filling tube to move downward and insert into the battery. At the same time, the pressure plate at one end of the connecting rod contacts the battery surface to limit the filling tube from moving downward. At this time, the limit block just moves to the bottom of the limit groove and cannot drive the placement block to move downward. As the horizontal plate continues to move downward, the horizontal plate drives the pressure rod to move downward, so that the sealing block at one end squeezes the electrolyte in the delivery cylinder and transports it to the battery through the filling tube. The electrolyte in the battery is filled in the cell. After the filling is completed, the guide block slides in the direction to drive the reel to reverse, and the elastic force generated by the elastic component drives the horizontal plate to move up. The moving up of the horizontal plate drives the placement block and the conveying cylinder at the bottom of the pressure rod to move up, and at the same time drives the filling pipe and the pressure plate away from the battery. Under the action of the limiting groove, the limiting block drives the placement block to move up to a suitable height, and the pressure rod will pull the sealing block in the conveying cylinder to slide upward in the conveying cylinder. At this time, negative pressure will be generated in the conveying cylinder, and the electrolyte in the shell will be sucked into the conveying cylinder through the liquid inlet pipe, which is convenient for filling the electrolyte to another battery again, which is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of the structure of an electrolyte filling device for lithium battery production.

[0014] Figure 2 This is a schematic structural diagram of an electrolyte filling device for lithium battery production from another angle.

[0015] Figure 3 This is a schematic diagram of the structure of a shell in an electrolyte filling device for lithium battery production.

[0016] Figure 4 This is a schematic diagram of the structure of a conveying block in an electrolyte filling device for lithium battery production.

[0017] Figure 5 A cross-sectional view of a placement block and a delivery cylinder in an electrolyte filling device for lithium battery production.

[0018] Figure 6 The present invention is a schematic diagram of the structure of a stirring rod in an electrolyte filling device for lithium battery production.

[0019] Figure 7 This is a schematic diagram of the structure of a half gear in an electrolyte filling device for lithium battery production.

[0020] In the figure: 1, support plate; 2, support rod; 3, shell; 4, fixed plate; 5, connecting unit; 6, fixed plate; 7, rotating shaft; 8, transmission rod; 9, half gear; 10, second drive shaft; 11, double-axis motor; 12, first drive shaft; 13, rotating member; 14, fixed rod; 15, tooth plate; 16, driving gear; 17, movable rod; 18, reel; 19, connecting rope; 20, guide roller; 21, guide block; 22, vertical plate; 23, placement block; 24, filling pipe; 25, conveying block; 26, clamping plate; 27, telescopic member; 28, cross bar; 29, pressing plate; 30, connecting rod; 31, rotating rod; 32, stirring rod; 33, limiting block; 34, sealing block; 35, conveying cylinder; 36, cross plate; 37, elastic component; 38, pressing rod; 39, driven gear; 40, liquid inlet pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1 to Figure 7As an embodiment of the present invention, an electrolyte filling device for lithium battery production includes a support plate 1, a support rod 2 is installed on the support plate 1, a shell 3 is installed at one end of the support rod 2 away from the support plate 1, a guide groove is provided on the top of the shell 3, a guide block 21 is slidably installed in the guide groove, a rotating rod 31 is rotatably installed on the guide block 21, one end of the rotating rod 31 extends into the shell 3, and a stirring rod 32 is installed on the rotating rod 31, a driving gear 16 is installed at the other end of the rotating rod 31, a fixing rod 14 is provided on the shell 3, and a gear is installed at one end of the fixing rod 14 away from the shell 3 Plate 15, driving gear 16 meshes with tooth plate 15; vertical plates 22 are symmetrically arranged at the bottom of housing 3, and slide grooves and limit grooves are provided on vertical plates 22, and a horizontal plate 36 is slidably installed in the slide groove, and a limit block 33 is slidably installed in the limit groove, and a cross bar 28 is installed on one side of the limit block 33, and a placement block 23 is installed at one end of the cross bar 28 away from the limit block 33, and a placement groove is provided on the placement block 23, and a conveying cylinder 35 is fixedly arranged in the placement groove, and a sealing block 34 is slidably installed in the conveying cylinder 35, and a filling pipe 24 is provided at the bottom of the conveying cylinder 35, and a pressure rod 38 is installed on the sealing block 34, and the pressure rod 38 The end away from the sealing block 34 is connected to the cross plate 36, a connecting block is installed on the injection pipe, a connecting rod 30 is installed on the connecting block, and a pressure plate 29 is installed on the end of the connecting rod 30 away from the connecting block; a liquid inlet pipe 40 is installed at the bottom of the shell 3, and the end of the liquid inlet pipe 40 away from the shell 3 is connected to the delivery cylinder 35, and a one-way valve is installed on the liquid inlet pipe 40 and the filling pipe 24; a fixed plate 4 is symmetrically installed on the support plate 1, a rotating shaft 7 is rotatably installed on the fixed plate 4, a delivery block 25 is installed on the rotating shaft 7, a delivery groove is opened on the delivery block 25, and a positioning device is provided in the delivery groove; a drive is installed on one side of the shell 3 A moving plate and a power device are installed on the driving plate, a rotating assembly and a reciprocating assembly are installed on the shell 3, one end of the rotating assembly is connected to the power device, and the other end is connected to the rotating shaft 7, one end of the reciprocating assembly is connected to the power assembly, and the other end is connected to the guide block 21; a reel 18 is installed on the rotating rod 31, a guide roller 20 is installed on the side wall of the shell 3, a connecting rope 19 is installed on the reel 18, one end of the connecting rope 19 away from the reel 18 is wound around the reel 18 and connected to the cross plate 36, an elastic component 37 is arranged in the slide groove, one end of the elastic component 37 is connected to the side wall of the slide groove, and the other end is connected to the cross plate 36.

[0023] In this embodiment, when the device is used, the battery to be filled with electrolyte is placed in the placement slot, and the battery is limited and fixed by the installed positioning device. After the battery is limited and fixed, the installed power device drives the rotating assembly and the reciprocating assembly to operate, and the rotating assembly drives the rotating shaft 7 to rotate intermittently, and the intermittent rotation of the rotating shaft 7 can drive the conveying block 25 to rotate intermittently, and then the batteries placed in multiple conveying slots are sequentially conveyed to the bottom of the filling pipe 24, and the reciprocating assembly drives the guide block 21 to slide back and forth in the guide slot, and the guide block 21 drives the gear at one end of the rotating rod 31 and the toothed plate 1 during the reciprocating sliding process. 5 meshes, the toothed plate 15 meshes with the gear to drive the rotating rod 31 to rotate, and the rotating rod 31 rotates and drives the stirring rod 32 to rotate while also moving horizontally, so that the stirring rod 32 stirs the electrolyte in the housing 3 to ensure the activity of the electrolyte and increase the uniformity of the electrolyte. In this process, the reel 18 also drives the connecting rope 19 to reel in and unwind. During the reeling process of the connecting rope 19, the horizontal plate 36 at one end is pulled downward, and the elastic component 37 is compressed to generate elastic force. The horizontal plate 36 moves downward and then drives the placement block 23 to move downward through the pressure rod 38. The placement block 23 moves downward and drives the filling pipe 24 moves downward and is inserted into the battery. At the same time, the pressure plate 29 at one end of the connecting rod 30 contacts the battery surface to limit the filling pipe 24 from moving further downward, and at the same time, the battery can be pressed and fixed. At this time, the limit block 33 just moves to the bottom of the limit groove and cannot drive the placement block 23 to move further downward. As the cross plate 36 continues to move downward, the cross plate 36 drives the pressure rod 38 to move downward so that the sealing block 34 at one end squeezes the electrolyte in the delivery cylinder 35 and delivers it to the battery through the filling pipe 24, thereby filling the electrolyte in the battery. After the filling is completed, the guide block 21 slides in the direction to drive the reel 18 to reverse, and the reel 18 is rotated in the elastic part. The elastic force generated by the component 37 drives the cross plate 36 to move upward, and the upward movement of the cross plate 36 drives the placement block 23 and the conveying cylinder 35 at the bottom of the pressure rod 38 to move upward, and at the same time drives the filling pipe 24 and the pressure plate 29 away from the battery. Under the action of the limiting groove, the limiting block 33 drives the placement block 23 to move up to a suitable height, and the pressure rod 38 will pull the sealing block 34 in the conveying cylinder 35 to slide upward in the conveying cylinder 35. At this time, negative pressure will be generated in the conveying cylinder 35, and the electrolyte in the shell 3 is sucked into the conveying cylinder 35 through the liquid inlet pipe 40, so as to facilitate the electrolyte filling of another battery rotated to the bottom of the filling pipe 24.

[0024] Furthermore, the filling port on each battery is made of elastic rubber material.

[0025] See also Figure 4 As an embodiment of the present invention, the positioning device includes a telescopic member 27, and the telescopic member 27 is symmetrically arranged in the conveying trough. One end of the telescopic member 27 is connected to the side wall of the conveying trough, and the other end is connected to the clamping plate 26.

[0026] In this embodiment, when the device is in use, the battery to be filled with electrolyte is placed in the placement slot, and the installed telescopic member 27 drives the splint 26 connected thereto to move toward each other. The splint 26 moves toward each other to limit and fix the battery, thereby improving the stability of the device.

[0027] See also Figure 1 to Figure 3 As an embodiment of the present invention, the power device includes a dual-axis motor 11, which is installed on a driving plate. The output ends of the dual-axis motor 11 are respectively installed with a first drive shaft 12 and a second drive shaft 10, the first drive shaft 12 is connected to the rotating component, and the second drive shaft 10 is connected to the reciprocating component at one end away from the dual-axis motor 11.

[0028] In this embodiment, the installed dual-axis motor 11 drives the first drive shaft 12 and the second drive shaft 10 connected thereto to rotate, the first drive shaft 12 drives the rotating assembly to operate, the rotating assembly drives the rotating shaft 7 to rotate intermittently, the intermittent rotation of the rotating shaft 7 can drive the conveying block 25 to rotate intermittently, and then the batteries placed in multiple conveying grooves are conveyed to the bottom of the filling pipe 24 in sequence, the reciprocating assembly drives the guide block 21 to slide back and forth in the guide groove, and the guide block 21 drives the gear at one end of the rotating rod 31 to engage with the tooth plate 15 during the reciprocating sliding process, the tooth plate 15 engages with the gear to drive the rotating rod 31 to rotate, the rotating rod 31 rotates and drives the stirring rod 32 to rotate while also moving laterally, so that the stirring rod 32 stirs the electrolyte in the shell 3 to ensure the activity of the electrolyte and increase the uniformity of the electrolyte. During this process, the reel 18 will also drive the connecting rope 19 to reel in and unwind.

[0029] See also Figure 1 to Figure 3 As an embodiment of the present invention, the reciprocating assembly includes a rotating member 13, one end of the rotating member 13 is connected to the second drive shaft 10, and the other end is rotatably connected to a movable rod 17, and the movable rod 17 is hinged to a guide block 21 at one end away from the rotating member 13.

[0030] In this embodiment, the installed second drive shaft 10 drives the rotating member 13 connected thereto to rotate, and the rotation of the rotating member 13 drives the guide block 21 connected thereto to slide back and forth in the guide groove through the movable rod 17. During the reciprocating sliding process, the guide block 21 drives the gear at one end of the rotating rod 31 to mesh with the toothed plate 15, and the toothed plate 15 meshes with the gear to drive the rotating rod 31 to rotate. The rotating rod 31 rotates and drives the stirring rod 32 to rotate while also moving horizontally, so that the stirring rod 32 stirs the electrolyte in the shell 3 to ensure the activity of the electrolyte and increase the uniformity of the electrolyte. In this process, the reel 18 will also drive the connecting rope 19 to reel in and unwind. During the reeling process of the connecting rope 19, the cross plate 36 at one end will be pulled downward, and the elastic component 37 will be compressed to generate elastic force. The cross plate 36 moves downward and then drives the placement block 23 to move downward through the pressure rod 38. The placement block 23 moves downward and drives the filling pipe 24 to move downward and insert into the battery. At the same time, the pressure plate 29 at one end of the connecting rod 30 will contact the battery surface and limit The filling pipe 24 continues to move downward. At this time, the limit block 33 just moves to the bottom of the limit groove and cannot drive the placement block 23 to move further downward. As the cross plate 36 continues to move downward, the cross plate 36 drives the pressure rod 38 to move downward so that the sealing block 34 at one end squeezes the electrolyte in the delivery cylinder 35 and delivers it to the battery through the filling pipe 24, thereby filling the electrolyte in the battery. After the filling is completed, the guide block 21 slides in the direction to drive the reel 18 to reverse, and the elastic component 37 generates an elastic force to drive the cross plate 36 to move upward, and the cross plate 36 moves upward. The upward movement of the plate 36 drives the placement block 23 and the conveying cylinder 35 at the bottom of the pressure rod 38 to move upward, and at the same time drives the filling pipe 24 and the pressure plate 29 away from the battery. Under the action of the limiting groove, the limiting block 33 drives the placement block 23 to move up to a suitable height, and the pressure rod 38 will pull the sealing block 34 in the conveying cylinder 35 to slide upward in the conveying cylinder 35. At this time, negative pressure will be generated in the conveying cylinder 35, and the electrolyte in the shell 3 is sucked into the conveying cylinder 35 through the liquid inlet pipe 40, so as to facilitate the refilling of electrolyte to another battery.

[0031] Furthermore, the rotating member 13 may be a cam or a rotating disk, etc., which will not be described in detail herein.

[0032] See also Figure 1 to Figure 4 As an embodiment of the present invention, the rotating assembly includes a mounting plate 6, the mounting plate 6 is fixedly mounted on the supporting plate 1, and a transmission rod 8 is rotatably mounted on the mounting plate 6; A half gear 9 is installed on the first driving shaft 12, and a driven gear 39 is provided on one side of the half gear 9. The half gear 9 is intermittently meshed with the driven gear 39. The driven gear 39 is installed on a transmission rod 8. A connecting unit 5 is installed on the transmission rod 8. The connecting unit 5 is connected to the rotating shaft 7 away from one end of the transmission shaft.

[0033] In this embodiment, the installed first drive shaft 12 drives the half gear 9 connected thereto to rotate, and the rotation of the half gear 9 drives the transmission rod 8 to rotate through intermittent meshing with the driven gear 39, and the rotation of the transmission rod 8 drives the rotating shaft 7 to rotate intermittently through the connecting unit 5, and the intermittent rotation of the rotating shaft 7 can drive the conveying block 25 to rotate intermittently, thereby conveying the batteries placed in the multiple conveying troughs to the bottom of the filling pipe 24 in sequence, so as to facilitate the sequential filling of electrolyte therein.

[0034] Furthermore, the connecting unit 5 may be a gear set or a pulley set, etc., which will not be described in detail herein.

[0035] See also Figure 2-3 As an embodiment of the present invention, the length of the slide groove is greater than the length of the limiting groove.

[0036] In this embodiment, the length of the slide groove is greater than the length of the limiting groove, ensuring that the placement block 23 can be driven downward by the pressure rod 38 during the sliding of the cross plate 36, so that the filling pipe 24 at the bottom can be smoothly inserted into the filling port of the battery. It also ensures that when the limiting block 33 moves to the bottom of the limiting groove, as the cross plate 36 continues to move downward, it can drive the pressure rod 38 to squeeze the sealing block 34, so that the sealing block 34 squeezes the electrolyte in the delivery cylinder 35 into the battery.

[0037] See also Figure 4 As an embodiment of the present invention, the telescopic member 27 is an electric telescopic rod.

[0038] In this embodiment, the telescopic member 27 is an electric telescopic rod, which drives the clamping plate 26 connected thereto to move toward each other, so that the clamping plate 26 limits and fixes the battery placed in the conveying trough, thereby improving the stability of the battery.

[0039] The working principle of the present invention is as follows: when the device is used, the battery to be filled with electrolyte is placed in the placement slot, and the installed telescopic member 27 drives the connected clamping plate 26 to move toward each other, and the clamping plate 26 moves toward each other to limit and fix the battery, thereby improving the stability of the device, and the installed double-axis motor 11 drives the first drive shaft 12 and the second drive shaft 10 connected thereto to rotate, and the installed second drive shaft 10 drives the connected half gear 9 to rotate, and the rotation of the half gear 9 drives the transmission rod 8 to rotate through intermittent meshing with the driven gear 39, and the rotation of the transmission rod 8 drives the intermittent rotation of the rotating shaft 7 through the connecting unit 5, and the intermittent rotation of the rotating shaft 7 can drive the conveying block 25 to rotate intermittently, thereby transferring multiple The batteries placed in the conveying trough are sequentially conveyed to the bottom of the filling pipe 24, and the installed second driving shaft 10 drives the rotating member 13 connected thereto to rotate. The rotating member 13 rotates and drives the guide block 21 connected thereto to slide back and forth in the guide groove through the movable rod 17. During the reciprocating sliding process, the guide block 21 drives the gear at one end of the rotating rod 31 to mesh with the toothed plate 15. The toothed plate 15 meshes with the gear to drive the rotating rod 31 to rotate. The rotating rod 31 rotates and drives the stirring rod 32 to rotate while also moving laterally, so that the stirring rod 32 stirs the electrolyte in the shell 3 to ensure the activity of the electrolyte and increase the uniformity of the electrolyte. In this process, the reel 18 also drives the connecting rope 19 to reel in and unwind. During the winding process of the connecting rope 19, the horizontal plate 36 at one end will be pulled to move downward, and the elastic component 37 will be compressed to generate elastic force. The horizontal plate 36 moves downward and then drives the placement block 23 to move downward through the pressure rod 38. The placement block 23 moves downward and drives the filling pipe 24 to move downward and insert into the battery. At the same time, the pressure plate 29 at one end of the connecting rod 30 contacts the battery surface and restricts the filling pipe 24 from continuing to move downward. At this time, the limit block 33 just moves to the bottom of the limit groove and cannot drive the placement block 23 to continue to move downward. As the horizontal plate 36 continues to move downward, the horizontal plate 36 drives the pressure rod 38 to move downward, so that the sealing block 34 at one end squeezes the electrolyte in the delivery cylinder 35 and delivers it to the battery through the filling pipe 24, thereby achieving battery charging. When the electrolyte in the battery is filled, after the filling is completed, the guide block 21 slides in the direction to drive the reel 18 to reverse, and the elastic force generated by the elastic component 37 drives the cross plate 36 to move upward. The upward movement of the cross plate 36 drives the placement block 23 and the conveying cylinder 35 at the bottom of the pressure rod 38 to move upward, and at the same time drives the filling pipe 24 and the pressure plate 29 away from the battery. Under the action of the limiting groove, the limiting block 33 drives the placement block 23 to move up to a suitable height, and the pressure rod 38 will pull the sealing block 34 in the conveying cylinder 35 to slide upward in the conveying cylinder 35. At this time, negative pressure will be generated in the conveying cylinder 35, and the electrolyte in the shell 3 will be sucked into the conveying cylinder 35 through the liquid inlet pipe 40, so as to facilitate the electrolyte filling of another battery again, which is convenient and efficient.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electrolyte filling device for lithium battery production, comprising a support plate, characterized in that: A support rod is installed on the support plate, a shell is installed at one end of the support rod away from the support plate, a guide groove is provided on the top of the shell, a guide block is slidably installed in the guide groove, a rotating rod is rotatably installed on the guide block, one end of the rotating rod extends into the shell, and a stirring rod is installed on the rotating rod, a driving gear is installed on the other end of the rotating rod, a fixing rod is provided on the shell, a tooth plate is installed at one end of the fixing rod away from the shell, and the driving gear is meshed with the tooth plate; The bottom of the shell is symmetrically provided with vertical plates, and a slide groove and a limit groove are opened on the vertical plates. A horizontal plate is slidably installed in the slide groove, and a limit block is slidably installed in the limit groove. A cross bar is installed on one side of the limit block, and a placement block is installed at the end of the cross bar away from the limit block. A placement groove is provided on the placement block, and a conveying cylinder is fixedly provided in the placement groove. A sealing block is slidably installed in the conveying cylinder, and a filling pipe is provided at the bottom of the conveying cylinder. A pressure rod is installed on the sealing block, and the end of the pressure rod away from the sealing block is connected to the horizontal plate, a connecting block is installed on the injection pipe, a connecting rod is installed on the connecting block, and a pressure plate is installed at the end of the connecting rod away from the connecting block; A liquid inlet pipe is installed at the bottom of the shell, and one end of the liquid inlet pipe away from the shell is connected to the delivery cylinder, and a one-way valve is installed on the liquid inlet pipe and the filling pipe; The support plate is symmetrically mounted with a fixed plate, a rotating shaft is rotatably mounted on the fixed plate, a conveying block is mounted on the rotating shaft, a conveying slot is provided on the conveying block, and a positioning device is provided in the conveying slot; A driving plate is installed on one side of the shell, a power device is installed on the driving plate, a rotating assembly and a reciprocating assembly are installed on the shell, one end of the rotating assembly is connected to the power device, and the other end is connected to the rotating shaft, one end of the reciprocating assembly is connected to the power assembly, and the other end is connected to the guide block; A reel is installed on the rotating rod, a guide roller is installed on the side wall of the shell, a connecting rope is installed on the reel, and the end of the connecting rope away from the reel is wound around the reel and connected to the cross plate. An elastic component is arranged in the slide groove, one end of the elastic component is connected to the side wall of the slide groove, and the other end is connected to the cross plate.

2. The electrolyte filling device for lithium battery production according to claim 1, characterized in that: The positioning device comprises a telescopic member, which is symmetrically arranged in the conveying trough, one end of the telescopic member is connected to the side wall of the conveying trough, and the other end is connected to a clamping plate.

3. The electrolyte filling device for lithium battery production according to claim 1, characterized in that: The power device includes a dual-axis motor, which is installed on a driving plate. The output ends of the dual-axis motor are respectively installed with a first driving shaft and a second driving shaft. The first driving shaft is connected to a rotating component, and the second driving shaft is connected to a reciprocating component at one end away from the dual-axis motor.

4. The electrolyte filling device for lithium battery production according to claim 3, characterized in that: The reciprocating assembly comprises a rotating member, one end of which is connected to the second driving shaft, and the other end of which is rotatably connected to a movable rod, and one end of the movable rod away from the rotating member is hinged to the guide block.

5. The electrolyte filling device for lithium battery production according to claim 3, characterized in that: The rotating assembly includes a mounting plate, the mounting plate is fixedly mounted on the supporting plate, and a transmission rod is rotatably mounted on the mounting plate; A half gear is installed on the first driving shaft, a driven gear is arranged on one side of the half gear, the half gear is intermittently meshed with the driven gear, the driven gear is installed on the transmission rod, a connecting unit is installed on the transmission rod, and the connecting unit is connected to the rotating shaft at one end away from the transmission shaft.

6. The electrolyte filling device for lithium battery production according to claim 1, characterized in that: The length of the sliding groove is greater than the length of the limiting groove.

7. The electrolyte filling device for lithium battery production according to claim 1, characterized in that: The telescopic member is an electric telescopic rod.

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