A core preheating process and device for lithium battery production and processing

Abstract

The present invention discloses a core preheating process and device for lithium battery production and processing, which relates to the technical field of lithium battery core preheating. The aim is to solve the technical problems that manual feeding of cylindrical cores is cumbersome and inefficient, and the preheating effect of traditional preheating devices is poor, affecting the quality and efficiency of core preheating. It includes a base, a machine body shell arranged above the base, a transmission component, and a partition board. Among them, the transmission component passes through the machine body shell, and the partition board is located on both sides of the transmission component. By designing a clamping component, a roller component, and a discharging component, the device of the present invention can automatically complete the feeding and discharging work. For cylindrical cores, the device can complete the preheating work more quickly. Compared with existing preheating devices, it not only ensures the quality and efficiency of preheating, but also avoids the steps that manual feeding affects the processing efficiency, thereby guaranteeing the preheating efficiency and efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of preheating of lithium battery cells, and more specifically, to a cell preheating process and device for lithium battery production and processing. Background Art

[0002] Lithium batteries are a type of battery with lithium metal or lithium alloy as the positive / negative electrode material and using a non-aqueous electrolyte solution. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The negative electrode materials actually used in lithium-ion batteries are basically carbon materials, such as artificial graphite, natural graphite, mesophase carbon microspheres, petroleum coke, carbon fiber, pyrolytic resin carbon, etc. A cell refers to a single electrochemical cell containing positive and negative electrodes and is generally not used directly. Cells are divided into three types: aluminum shell cells, soft pack cells, and cylindrical cells.

[0003] Currently, when performing the preheating process on cylindrical cells, there are positioning challenges caused by the smooth surface of the cylinder. Workers have to manually adjust the position of the cell and manually start the preheating device after ensuring its accurate positioning. This manual feeding method is not only cumbersome in operation but also greatly restricts the efficiency of cell processing. In addition, traditional preheating devices have obvious deficiencies in preheating effects, especially in the rapid and uniform heating of the two key preheating areas at both ends of the cell. This uneven preheating not only leads to significant heat loss but also seriously affects the quality and production efficiency of the preheated cells. In view of this, we propose a cell preheating process and device for lithium battery production and processing. Summary of the Invention

[0004] The purpose of the present invention is to provide a cell preheating process and device for lithium battery production and processing to solve the technical problems of cumbersome and inefficient manual feeding of cylindrical cells, and poor preheating effects of traditional preheating devices, which affect the quality and efficiency of cell preheating.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A cell preheating process and device for lithium battery production and processing, including a motor and a hot air blower, and further including,

[0006] A body mechanism, including a base, a body shell arranged above the base, a transmission component, and a partition board. Among them, the transmission component passes through the body shell, and the partition board is located on both sides of the transmission component; and a preheating mechanism, including a roller component, two side plates arranged on both sides of the roller component, two connecting shafts connected to the two side plates, a hot air blower and a motor connected to one of the side plates, a clamping component, a air supply component, and a discharging component. Among them, the clamping component is connected to the roller component, the air supply component is located on one side of the roller component, and the discharging component is connected to the air supply component.

[0007] The present invention can automatically complete the feeding and discharging operations. For cylindrical battery cells, the device can complete the preheating work more quickly. Compared with the existing preheating devices, it not only ensures the quality and efficiency of preheating, but also avoids the steps that affect the processing efficiency due to manual feeding, thus guaranteeing the preheating efficiency and quality of the device.

[0008] Preferably, the upper part of the base is fixedly connected to the lower part of the body shell. The upper part of the body shell is lapped with the transmission component, and the upper part of the body shell is fixedly connected to two partition plates, and the two partition plates are respectively located on both sides of the transmission component.

[0009] Preferably, the roller assembly is connected to two side plates through two connecting shafts respectively. One of the connecting shafts passes through the side plate and is in transmission connection with the motor. One side of the side plate is fixedly connected to the motor and the hot air blower. The hot air blower is communicated with the air supply assembly. The air supply assembly is clamped outside the roller assembly. A number of clamping assemblies are fixedly connected to the outside of the roller assembly. The air supply assembly is communicated with the discharging assembly;

[0010] The air supply assembly is fixedly connected to the upper part of the inner wall of the body shell. Both of the two side plates are fixedly connected to the lower part of the inner wall of the body shell. The roller assembly is located above the transmission component.

[0011] Preferably, the roller assembly includes a mounting cylinder. A flow channel is opened in the mounting cylinder. A limiting chute is opened on one side of the mounting cylinder. The limiting chute is annular. A number of first through holes are opened on the side of the mounting cylinder where the limiting chute is opened. A number of second through holes are opened outside the mounting cylinder. A number of exhaust grooves are opened on both sides of the mounting cylinder. A partition cover is fixedly connected to one side of the mounting cylinder. The partition cover is communicated with the exhaust groove. The partition cover is communicated with the flow channel through a pipeline;

[0012] Both sides of the mounting cylinder are respectively fixedly connected to two connecting shafts. The air supply assembly is clamped in the limiting chute. The air supply assembly is communicated with the mounting cylinder through the first through holes and the exhaust grooves. The mounting cylinder is communicated with a number of clamping assemblies through a number of second through holes.

[0013] Preferably, the clamping assembly includes a first telescopic cylinder. The top of the first telescopic cylinder is fixedly connected to a mounting table. A pin shaft is fixedly connected above the mounting table. The mounting table is respectively hinged to a movable device and a clamping plate through the pin shaft. Pushers are fixedly connected to the other sides of the movable device and the clamping plate. A pressure relief hole is opened outside the first telescopic cylinder;

[0014] The first telescopic cylinder is communicated with the first through hole outside the mounting cylinder. The pusher is communicated with the mounting cylinder.

[0015] Preferably, the air supply assembly includes a sub-connecting pipe, and the other ends of the sub-connecting pipe are respectively communicated with the sealing cover and the limiting cover;

[0016] The sub-connecting pipe is communicated with the discharging assembly through a tee joint. The sealing cover is clamped outside the installation cylinder, the limiting cover is clamped in the limiting chute, and the other end of the sub-connecting pipe is communicated with the hot air blower.

[0017] Preferably, the discharging assembly includes a conduit, one end of the conduit is communicated with one of the second telescopic cylinders. There are two second telescopic cylinders, and the two second telescopic cylinders are communicated through a connecting pipe. Fixed blocks are fixedly connected to the bottom ends of the two second telescopic cylinders. A baffle plate is fixedly connected to the opposite sides of the two fixed blocks. A discharging block is fixedly connected to the rear of the baffle plate. A second arc-shaped groove is formed in the front of the baffle plate. A first arc-shaped groove is formed in the rear of the discharging block;

[0018] The top end of the second telescopic cylinder is fixedly connected to the upper part of the inner wall of the machine body shell. The other end of the conduit is communicated with the sub-connecting pipe. The discharging block is arranged between the two first telescopic cylinders in the middle.

[0019] Preferably, the actuator includes a limiting plate. A first rotating shaft is fixedly connected above the limiting plate. Two first bearings are sleeved outside the first rotating shaft. Two movable plates are clamped outside the two first bearings. The movable plates are arc-shaped. A torsion spring is fixedly connected outside the first rotating shaft. The other end of the torsion spring is fixedly connected to the movable plate;

[0020] The limiting plate is fixedly connected to the pusher. The bottom end of the limiting plate is fixedly connected to the pin shaft.

[0021] Preferably, the pusher includes a third telescopic cylinder. A second rotating shaft is fixedly connected to the top end of the third telescopic cylinder. Two second bearings are sleeved outside the second rotating shaft, and the two second bearings are respectively clamped with two positioning blocks;

[0022] The positioning block is fixedly connected to the limiting plate. The third telescopic cylinder is communicated with the installation cylinder. The third telescopic cylinder is designed obliquely.

[0023] A core preheating device for lithium battery production and processing includes the following steps:

[0024] S1. Place the core to be processed in the body mechanism;

[0025] S2. Start the preheating mechanism to clamp and heat the core;

[0026] S3. After the preheating is completed, the preheating mechanism will automatically release the core, and the body mechanism will convey and discharge the core.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention designs a clamping assembly, a roller assembly and a discharge assembly, places the battery cell above the transmission assembly, transports the battery cell through the transmission assembly, starts the hot air blower and the motor, and the hot air blower injects gas into the air supply assembly and the discharge assembly, so that the discharge assembly extends downward to block the battery cell, and the clamping assembly automatically clamps and feeds the battery cell blocked above the transmission assembly. As the roller assembly rotates and drives the clamping assembly to clamp and fix the battery cell, the hot air discharged by the hot air blower will be blown to the two ends of the battery cell through the roller assembly and the air supply assembly, and part of the hot air will also be blown along The clamping assembly is discharged to preheat the battery cell. After the treatment is completed, the hot air blower and the motor are operated in reverse, the clamping assembly loosens the clamping of the battery cell, and the unloading assembly shrinks and moves upward to assist the battery cell to separate from the clamping assembly and complete the unloading, so that the device can automatically complete the loading and unloading work. For cylindrical battery cells, the device can complete the preheating work more quickly. Compared with the existing preheating device, it not only ensures the quality and efficiency of the preheating, but also avoids the step of affecting the processing efficiency due to manual loading, thereby ensuring the preheating efficiency and preheating efficiency of the device.

[0029] 2. The present invention also designs a roller assembly, an air supply assembly and a clamping assembly. The hot air blower injects gas into the second telescopic cylinder, so that the baffle plate moves down to the top of the transmission assembly to block the battery cell. When the battery cell contacts the movable plate, the movable plate is squeezed to flip along the first rotating shaft, and as it flips to the extreme state, the coil spring drives the movable plate to reset, and the battery cell enters between the limit plate and the clamping plate to complete the loading, so that the battery cell installation cylinder can stably squeeze the battery cell during its rotation, so that the battery cell enters between the clamping plate and the movable plate, and cooperates with the secondary push and fixation of the third telescopic cylinder, so that the device can clamp the battery cell more stably to avoid the battery cell falling off during the rotation of the installation cylinder, and the method of injecting gas from both ends further ensures the effect of the device on preheating the battery cell, thereby ensuring the preheating quality and efficiency of the device.

[0030] 3. The present invention also designs a discharging component and a blowing component, runs the hot air blower and the motor in reverse, the motor drives the installation cylinder to rotate in reverse, the hot air blower extracts the air in the second telescopic cylinder, causing it to contract while pulling the baffle plate upward. At this time, the discharging block will be located between the middle two first telescopic cylinders. At the same time, the hot air blower extracts the gas in the third telescopic cylinder, causing the limiting plate and the clamping plate to reverse and gradually loosen the clamping of the battery cell. As the installation cylinder rotates, the limiting plate and the clamped and fixed battery cell will squeeze the discharging block. And as the installation cylinder operates, the battery cell will disengage from the limiting plate and the clamping plate and fall along the second arc groove to the other side of the transmission component, enabling the device to automatically discharge the battery cell after the processing of the battery cell is completed. In this way, it can repeatedly preheat and process the subsequent battery cells in a cycle, improving the automation degree of the device and avoiding the situation of damage due to over-preheating of the battery cell, thereby ensuring the processing quality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 is a schematic diagram of the body mechanism structure of the present invention;

[0033] Figure 3 is a schematic diagram of the cross-sectional structure of the body mechanism of the present invention;

[0034] Figure 4 is a schematic diagram of the drum assembly structure of the present invention;

[0035] Figure 5 is a schematic diagram of the cross-sectional structure of the drum assembly of the present invention;

[0036] Figure 6 is a schematic diagram of the clamping assembly structure of the present invention;

[0037] Figure 7 of the present invention Figure 6 is an enlarged schematic diagram of part A;

[0038] Figure 8 is a schematic diagram of the cross-sectional structure of the discharging component of the present invention.

[0039] Explanation of the reference numerals in the drawings:

[0040] 1. Body mechanism; 2. Preheating mechanism;

[0041] 101. Base; 102. Body shell; 103. Transmission component; 104. Partition board;

[0042] 201. Drum assembly; 202. Side plate; 203. Connecting shaft; 204. Hot air blower; 205. Motor; 206. Clamping assembly; 207. Blowing component; 208. Discharging component;

[0043] 2011, mounting cylinder; 2012, flow groove; 2013, limiting sliding groove; 2014, first through hole; 2015, second through hole; 2016, exhaust groove; 2017, isolation cover;

[0044] 2061, first telescopic cylinder; 2062, mounting table; 2063, pin shaft; 2064, actuator; 2065, clamping plate; 2066, pusher;

[0045] 2071, sub - connecting pipe; 2072, sealing cover; 2073, limiting cover;

[0046] 2081, conduit; 2082, second telescopic cylinder; 2083, connecting pipe; 2084, fixing block; 2085, baffle plate; 2086, discharging block; 2087, first arc groove; 2088, second arc groove;

[0047] 20641, limiting plate; 20642, first rotating shaft; 20643, first bearing; 20644, movable plate; 20645, coil spring;

[0048] 20661, third telescopic cylinder; 20662, second rotating shaft; 20663, second bearing; 20664, positioning block. Specific embodiments

[0049] As Figures 1 to 8 shown, a core pre - heating process and its device for lithium - battery production and processing according to the present invention include a motor 205 and a hot - air blower 204, and also include,

[0050] The machine body mechanism 1 comprises a base 101, a machine body shell 102 arranged above the base 101, a transmission assembly 103 and an isolation plate 104, wherein the transmission assembly 103 passes through the machine body shell 102, and the isolation plates 104 are located on both sides of the transmission assembly 103; and the preheating mechanism 2 comprises a drum assembly 201, two side plates 202 arranged on both sides of the drum assembly 201, two connecting shafts 203 connected to the two side plates 202, a hot air blower 204 and a motor 205 connected to one side of the side plates 202, and a clamp The holding assembly 206, the air supply assembly 207 and the unloading assembly 208, wherein the holding assembly 206 is connected to the drum assembly 201, the air supply assembly 207 is located on one side of the drum assembly 201, and the unloading assembly 208 is connected to the air supply assembly 207. By designing the holding assembly 206, the drum assembly 201 and the unloading assembly 208, the battery core is placed above the transmission assembly 103, and the battery core is transported through the transmission assembly 103. When the hot air blower 204 and the motor 205 are started, the hot air blower 204 will inject gas into the air supply assembly 207. 07 and unloading assembly 208, so that the unloading assembly 208 extends downward to block the battery cell, and the clamping assembly 206 automatically clamps and loads the battery cell blocked above the transmission assembly 103. As the roller assembly 201 rotates and drives the clamping assembly 206 to clamp and fix the battery cell, the hot air discharged by the hot air blower 204 will pass through the roller assembly 201 and the air supply assembly 207 to blow to both ends of the battery cell, and part of the hot air will also be discharged along the clamping assembly 206, so as to preheat the battery cell. After the treatment is completed, the reverse By operating the hot air blower 204 and the motor 205, the clamping assembly 206 loosens its grip on the battery cell, and the unloading assembly 208 shrinks and moves upward, assisting the battery cell to detach from the clamping assembly 206 and completing the unloading, so that the device can automatically complete the loading and unloading work. For cylindrical battery cells, the device can complete the preheating work more quickly. Compared with the existing preheating device, it not only ensures the quality and efficiency of preheating, but also avoids the step of affecting the processing efficiency due to manual loading, thereby ensuring the preheating efficiency and preheating efficiency of the device.

[0051] In an embodiment of the present invention, the upper part of the base 101 is fixedly connected to the lower part of the body housing 102. The upper part of the body housing 102 is lapped with the transmission assembly 103. The upper part of the body housing 102 is fixedly connected to two partition plates 104, and the two partition plates 104 are respectively located on both sides of the transmission assembly 103. The roller assembly 201 is connected to the two side plates 202 through two connecting shafts 203 respectively. One of the connecting shafts 203 passes through the side plate 202 and is in transmission connection with the motor 205. One side of the side plate 202 is fixedly connected to the motor 205 and the hot air blower 204. The hot air blower 204 is communicated with the air supply assembly 207. The air supply assembly 207 is clamped outside the roller assembly 201. A plurality of clamping assemblies 206 are fixedly connected to the outside of the roller assembly 201. The air supply assembly 207 is communicated with the unloading assembly 208. The air supply assembly 207 is fixedly connected to the upper part of the inner wall of the body housing 102. The two side plates 202 are both fixedly connected to the lower part of the inner wall of the body housing 102. The roller assembly 201 is located above the transmission assembly 103. During feeding, the hot air blower 204 injects gas into the second telescopic cylinder 2082, so that the baffle plate 2085 moves down to block the battery cell above the transmission assembly 103. When the motor 205 operates, it drives the mounting cylinder 2011 and the first telescopic cylinder 2061 outside the mounting cylinder 2011 to rotate. When the battery cell contacts the movable plate 20644, it squeezes the movable plate 20644 to flip along the first rotating shaft 20642, and when it flips to the limit state, the coil spring 20645 drives the movable plate 20644 to reset, and the battery cell enters between the limiting plate 20641 and the clamping plate 2065, completing the preliminary fixed feeding of the battery cell. With the continuous injection of hot air, part of the gas enters the third telescopic cylinder 20661, pushing the clamping plate 2065 and the limiting plate 20641 to flip towards each other, completing the secondary fixation of the battery cell. With the continuous rotation of the mounting cylinder 2011, the feeding is completed. Since the hot air blower 204 continuously injects gas into the sealing cover 2072 and the limiting cover 2073, part of the gas entering the mounting cylinder 2011 will be discharged again along the isolation cover 2017, cooperating with the gas discharged from the sealing cover 2072 on the other side, completing the heating of both ends of the battery cell, and the hot air entering the first telescopic cylinder 2061 is discharged through the pressure relief holes, thereby preheating the surface of the battery cell, so that the device can reduce the feeding difficulty by squeezing the movable plate 20644 during feeding, and cooperating with the clamping plate 2065 and the limiting plate 20641 both being made of elastic materials, so that the battery cell can be stably squeezed during the rotation of the mounting cylinder 2011 driven by it, so that the battery cell enters between the clamping plate 2065 and the movable plate 20644, and cooperating with the secondary pushing and fixing of the third telescopic cylinder 20661, so that the device can clamp the battery cell more stably, avoiding the situation that the battery cell falls off during the rotation of the mounting cylinder 2011, and cooperating with the gas injection method from both ends further ensures the preheating effect of the device on the battery cell, guaranteeing the preheating quality and efficiency of the device.

[0052] In an embodiment of the present invention, the drum assembly 201 includes a mounting cylinder 2011. A flow channel 2012 is formed inside the mounting cylinder 2011. A limiting sliding groove 2013 is formed on one side of the mounting cylinder 2011. The limiting sliding groove 2013 is annular. A plurality of first through holes 2014 are formed on the side of the mounting cylinder 2011 where the limiting sliding groove 2013 is formed. A plurality of second through holes 2015 are formed outside the mounting cylinder 2011. A plurality of exhaust grooves 2016 are formed on both sides of the mounting cylinder 2011. A partition cover 2017 is fixedly connected to one side of the mounting cylinder 2011. The partition cover 2017 is communicated with the exhaust groove 2016. The partition cover 2017 is communicated with the flow channel 2012 through a pipeline. Both sides of the mounting cylinder 2011 are respectively fixedly connected to two connecting shafts 203. The air supply assembly 207 is clamped in the limiting sliding groove 2013. The air supply assembly 207 is communicated with the mounting cylinder 2011 through the first through holes 2014 and the exhaust grooves 2016. The mounting cylinder 2011 is communicated with a plurality of clamping assemblies 206 through a plurality of second through holes 2015. The clamping assembly 206 includes a first telescopic cylinder 2061. The top end of the first telescopic cylinder 2061 is fixedly connected to a mounting table 2062. A pin shaft 2063 is fixedly connected above the mounting table 2062. The mounting table 2062 is respectively hinged to a mover 2064 and a clamping plate 2065 through the pin shaft 2063. Pusher 2066 is fixedly connected to the other side of the mover 2064 and the clamping plate 2065. A pressure relief hole is formed outside the first telescopic cylinder 2061. The first telescopic cylinder 2061 is communicated with the first through hole 2014 outside the mounting cylinder 2011. The pusher 2066 is communicated with the mounting cylinder 2011. By designing a first arc-shaped groove 2087 below the unloading block 2086, it can ensure that during the movement of the battery cell along with the transmission assembly 103, the baffle plate 2085 initially blocks it to prevent the battery cell from moving again. To avoid the situation of slipping due to being squeezed by the movable plate 20644, the first arc-shaped groove 2087 can further limit the position of the battery cell, increasing the contact surface between the battery cell and the baffle plate 2085 and the unloading block 2086, ensuring that the limiting plate 20641 and the clamping plate 2065 can stably clamp and fix the battery cell.

[0053] As another embodiment of the present invention, the air supply assembly 207 includes a branch pipe 2071. The other ends of the branch pipe 2071 are respectively communicated with a sealing cover 2072 and a limiting cover 2073. The branch pipe 2071 is communicated with the discharging assembly 208 through a tee joint. The sealing cover 2072 is clamped outside the mounting cylinder 2011, and the limiting cover 2073 is clamped in the limiting chute 2013. The other end of the branch pipe 2071 is communicated with the hot air blower 204. The discharging assembly 208 includes a conduit 2081. One end of the conduit 2081 is communicated with one of the second telescopic cylinders 2082. There are two second telescopic cylinders 2082, and the two second telescopic cylinders 2082 are communicated through a connecting pipe 2083. The bottom ends of the two second telescopic cylinders 2082 are fixedly connected with fixing blocks 2084. A baffle plate 2085 is fixedly connected to the opposite sides of the two fixing blocks 2084. A discharging block 2086 is fixedly connected to the rear of the baffle plate 2085. A second arc-shaped groove 2088 is formed in the front of the baffle plate 2085, and a first arc-shaped groove 2087 is formed in the rear of the discharging block 2086. The top ends of the second telescopic cylinders 2082 are fixedly connected to the upper part of the inner wall of the machine body shell 102. The other end of the conduit 2081 is communicated with the branch pipe 2071. The discharging block 2086 is arranged between the two middle first telescopic cylinders 2061. Due to the provision of the limiting chute 2013 and the limiting cover 2073, and the shapes of the limiting chute 2013 and the limiting cover 2073 are both circular, when the mounting cylinder 2011 rotates, the limiting cover 2073 will remain stationary in the limiting chute 2013. At the same time, it can ensure that the limiting cover 2073 is always in communication with the mounting cylinder 2011, ensuring that the hot air blower 204 continuously injects gas into the mounting cylinder 2011, thereby ensuring the stability of the device during use.

[0054] As another embodiment of the present invention, the movable device 2064 includes a limit plate 20641, a first rotating shaft 20642 is fixedly connected to the upper side of the limit plate 20641, two first bearings 20643 are connected to the outer side of the first rotating shaft 20642, and a movable plate 20644 is clamped on the outer side of the two first bearings 20643, the movable plate 20644 is arc-shaped, a coil spring 20645 is fixedly connected to the outer side of the first rotating shaft 20642, and the other end of the coil spring 20645 is fixedly connected to the movable plate 20644, the limit plate 20641 is fixedly connected to the pusher 2066, and the limit The bottom end of the plate 20641 is fixedly connected to the pin 2063, and the pusher 2066 includes a third telescopic cylinder 20661. The top of the third telescopic cylinder 20661 is fixedly connected to the second rotating shaft 20662. The outer sleeve of the second rotating shaft 20662 is connected with two second bearings 20663, and the two second bearings 20663 are respectively connected to the two positioning blocks 20664. The positioning blocks 20664 are fixedly connected to the limit plate 20641. The third telescopic cylinder 20661 is connected to the installation cylinder 2011. The third telescopic cylinder 20661 adopts an inclined design. By designing the unloading The hot air blower 204 and the motor 205 are operated in reverse, and the motor 205 drives the installation cylinder 2011 to rotate in the opposite direction. The hot air blower 204 extracts the air in the second telescopic cylinder 2082, causing it to shrink and pull the baffle plate 2085 upward. At this time, the unloading block 2086 is located between the two first telescopic cylinders 2061 in the middle. At the same time, the hot air blower 204 extracts the air in the third telescopic cylinder 20661, causing the limit plate 20641 and the clamping plate 2065 to flip in the opposite direction, gradually loosening the clamping of the battery cell. As the installation cylinder 2011 rotates, the The rotation limit plate 20641 and the clamped battery cell will squeeze the unloading block 2086, and with the operation of the installation tube 2011, the battery cell will be separated from the limit plate 20641 and the clamping plate 2065, and fall along the second arc groove 2088 to the other side of the transmission assembly 103, so that the device can automatically unload the battery cell after processing the battery cell, and the subsequent battery cells can be preheated in this way, which improves the automation degree of the device and avoids damage to the battery cell due to over-preheating, thereby ensuring the processing quality of the device.

[0055] Working principle: This embodiment provides a cell preheating process and device for lithium battery production and processing. When in use, the cell to be processed is placed in the body mechanism 1, and then the preheating mechanism 2 is started to clamp and heat the cell. After the preheating is completed, the preheating mechanism 2 will automatically loosen the cell, and then the body mechanism 1 will transport and discharge the cell.

[0056] During processing, the battery cells are placed above the transmission component 103, and the battery cells are transported through the transmission component 103. The hot air blower 204 and the motor 205 are started, and the hot air blower 204 will inject gas into the air supply component 207 and the unloading component 208, so that the unloading component 208 extends downward to block the battery cells, and the clamping component 206 will automatically clamp and load the battery cells blocked above the transmission component 103. As the roller component 201 rotates and drives the clamping component 206 to clamp and fix the battery cells, the hot air discharged by the hot air blower 204 will pass through the roller component 201 and the air supply component 207 to blow to both ends of the battery cells, and part of the hot air will also be discharged along the clamping component 206, so as to preheat the battery cells. After the processing is completed, the hot air blower 204 and the motor 205 are reversed to run the clamping component 206 to loosen the clamping of the battery cells, and the unloading component 208 shrinks and moves upward to assist the battery cells to separate from the clamping component 206, and complete the unloading;

[0057] During material loading, the hot air blower 204 injects gas into the second telescopic cylinder 2082, so that the blocking plate 2085 moves down to the top of the transmission assembly 103 to block the battery cell. When the motor 205 is running, it drives the installation cylinder 2011 and the first telescopic cylinder 2061 outside the installation cylinder 2011 to rotate. When the battery cell contacts the movable plate 20644, the movable plate 20644 is squeezed to flip along the first rotating shaft 20642, and when it flips to the limit state, the coil spring 20645 drives the movable plate 20644 to reset, and the battery cell enters between the limit plate 20641 and the clamping plate 2065, completing the preliminary fixing and loading of the battery cell. With the continuous injection of hot air, part of the gas enters the third telescopic cylinder 20661, pushing the clamping plate 2065 to and the limiting plate 20641 are turned toward each other to complete the secondary fixation of the battery cell. With the continuous rotation of the installation cylinder 2011, the loading is completed. Since the hot air blower 204 will continue to inject gas into the sealing cover 2072 and the limiting cover 2073, part of the gas entering the installation cylinder 2011 will be discharged again along the isolation cover 2017, and the gas discharged from the sealing cover 2072 on the other side is cooperated to complete the heating of the two ends of the battery cell, and the hot air entering the first telescopic cylinder 2061 is discharged along the pressure relief hole, thereby preheating the surface of the battery cell, so that the device can reduce the difficulty of loading by squeezing the movable plate 20644 when loading, and the clamping plate 2065 and the limiting plate 20641 are all made of elastic materials;

[0058] During unloading, the hot air blower 204 and the motor 205 are operated in reverse, and the motor 205 drives the installation tube 2011 to rotate in the opposite direction. The hot air blower 204 extracts the air in the second telescopic tube 2082, causing it to contract and pull the baffle plate 2085 upward. At this time, the unloading block 2086 will be between the two middle first telescopic tubes 2061. At the same time, the hot air blower 204 extracts the gas in the third telescopic tube 20661, causing the limit plate 20641 and the clamping plate 2065 to flip in the opposite direction, gradually loosening the clamping of the battery cell. As the installation tube 2011 rotates, the limit plate 20641 and the clamped battery cell will squeeze the unloading block 2086, and as the installation tube 2011 runs, the battery cell will break away from the limit plate 20641 and the clamping plate 2065, and fall along the second arc groove 2088 to the other side of the transmission assembly 103.

[0059] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A preheating device for lithium battery cores in production and processing, comprising a motor (205) and a hot air blower (204), characterized in that, It further includes a body mechanism (1), including a base (101), a body housing (102) disposed above the base (101), a transmission component (103) and a partition plate (104). Among them, the transmission component (103) passes through the body housing (102), and the partition plate (104) is located on both sides of the transmission component (103); and a preheating mechanism (2), including a drum assembly (201), two side plates (202) disposed on both sides of the drum assembly (201), two connecting shafts (203) connected to the two side plates (202), a hot air blower (204) and a motor (205) connected to one of the side plates (202), a clamping component (206), an air supply component (207) and a discharging component (208). Among them, the clamping component (206) is connected to the drum assembly (201), the air supply component (207) is located on one side of the drum assembly (201), and the discharging component (208) is connected to the air supply component (207); the drum assembly (201) includes an installation cylinder (2011), a circulation groove (2012) is formed in the installation cylinder (2011), a limiting sliding groove (2013) is formed on one side of the installation cylinder (2011), the limiting sliding groove (2013) is annular, a plurality of first through holes (2014) are formed on the side of the installation cylinder (2011) where the limiting sliding groove (2013) is formed, a plurality of second through holes (2015) are formed outside the installation cylinder (2011), a plurality of exhaust grooves (2016) are formed on both sides of the installation cylinder (2011), a partition cover (2017) is fixedly connected to one side of the installation cylinder (2011), the partition cover (2017) is communicated with the exhaust groove (2016), and the partition cover (2017) is communicated with the circulation groove (2012) through a pipeline; both sides of the installation cylinder (2011) are fixedly connected to the two connecting shafts (203) respectively, the air supply component (207) is clamped in the limiting sliding groove (2013), the air supply component (207) is communicated with the installation cylinder (2011) through the first through hole (2014) and the exhaust groove (2016), and the installation cylinder (2011) is communicated with a plurality of clamping components (206) through a plurality of second through holes (2015).

2. The core preheating device for lithium battery production and processing according to claim 1, characterized in that, The upper part of the base (101) is fixedly connected to the lower part of the body housing (102), the upper part of the body housing (102) is lapped with the transmission component (103), the upper part of the body housing (102) is fixedly connected to the two partition plates (104), and the two partition plates (104) are respectively located on both sides of the transmission component (103).

3. The core preheating device for lithium battery production and processing according to claim 2, wherein The drum assembly (201) is connected to two side plates (202) through two connecting shafts (203) respectively. One of the connecting shafts (203) passes through the side plate (202) and is in transmission connection with the motor (205). One side of the side plate (202) is fixedly connected to the motor (205) and the hot air blower (204). The hot air blower (204) is communicated with the air supply assembly (207). The air supply assembly (207) is clamped outside the drum assembly (201). The outside of the drum assembly (201) is fixedly connected to a number of clamping assemblies (206). The air supply assembly (207) is communicated with the unloading assembly (208); The air supply assembly (207) is fixedly connected above the inner wall of the machine body shell (102). Both of the two side plates (202) are fixedly connected below the inner wall of the machine body shell (102). The drum assembly (201) is located above the transmission assembly (103).

4. The core preheating device for lithium battery production and processing according to claim 1, characterized in that, The clamping assembly (206) includes a first telescopic cylinder (2061). The top end of the first telescopic cylinder (2061) is fixedly connected to a mounting table (2062). Above the mounting table (2062) is fixedly connected with a pin shaft (2063). The mounting table (2062) is hinged to a mover (2064) and a clamping plate (2065) through the pin shaft (2063) respectively. The other sides of the mover (2064) and the clamping plate (2065) are both fixedly connected with a pusher (2066). A pressure relief hole is formed outside the first telescopic cylinder (2061); The first telescopic cylinder (2061) is communicated with a first through hole (2014) outside the mounting cylinder (2011). The pusher (2066) is communicated with the mounting cylinder (2011).

5. The core preheating device for lithium battery production and processing according to claim 4, characterized in that, The air supply assembly (207) includes a sub-connecting pipe (2071). The other end of the sub-connecting pipe (2071) is respectively communicated with a sealing cover (2072) and a limiting cover (2073); The sub-connecting pipe (2071) is communicated with the unloading assembly (208) through a tee joint. The sealing cover (2072) is clamped outside the mounting cylinder (2011). The limiting cover (2073) is clamped in a limiting chute (2013). The other end of the sub-connecting pipe (2071) is communicated with the hot air blower (204).

6. The core preheating device for lithium battery production and processing according to claim 5, characterized in that, The unloading assembly (208) includes a conduit (2081). One end of the conduit (2081) is communicated with one of the second telescopic cylinders (2082). There are two second telescopic cylinders (2082), and the two second telescopic cylinders (2082) are communicated through a connecting pipe (2083). The bottom ends of the two second telescopic cylinders (2082) are both fixedly connected with fixing blocks (2084). The opposite sides of the two fixing blocks (2084) are fixedly connected with a baffle plate (2085). Behind the baffle plate (2085) is fixedly connected with a discharging block (2086). A second arc-shaped groove (2088) is formed in front of the baffle plate (2085). A first arc-shaped groove (2087) is formed behind the discharging block (2086); The top end of the second telescopic cylinder (2082) is fixedly connected above the inner wall of the machine body shell (102), the other end of the conduit (2081) is communicated with the sub - connecting pipe (2071), and the discharging block (2086) is arranged between two middle first telescopic cylinders (2061).

7. The core preheating device for lithium battery production and processing according to claim 6, characterized in that, The mover (2064) includes a limit plate (20641), a first rotating shaft (20642) is fixedly connected above the limit plate (20641), two first bearings (20643) are sleeved outside the first rotating shaft (20642), two movable plates (20644) are clamped outside the two first bearings (20643), the movable plate (20644) is arc - shaped, a coil spring (20645) is fixedly connected outside the first rotating shaft (20642), and the other end of the coil spring (20645) is fixedly connected with the movable plate (20644); The limit plate (20641) is fixedly connected with the pusher (2066), and the bottom end of the limit plate (20641) is fixedly connected with the pin shaft (2063).

8. The core preheating device for lithium battery production and processing according to claim 7, characterized in that, The pusher (2066) includes a third telescopic cylinder (20661), the top end of the third telescopic cylinder (20661) is fixedly connected with a second rotating shaft (20662), two second bearings (20663) are sleeved outside the second rotating shaft (20662), and the two second bearings (20663) are respectively clamped with two positioning blocks (20664); The positioning block (20664) is fixedly connected with the limit plate (20641), the third telescopic cylinder (20661) is communicated with the installation cylinder (2011), and the third telescopic cylinder (20661) adopts an inclined design.

9. A core preheating process for lithium battery production and processing, using a core preheating device for lithium battery production and processing described in any one of claims 1-8, characterized in that, It includes the following steps: S1. Place the battery cell to be processed in the machine body mechanism (1); S2. Start the pre - heating mechanism (2) to clamp and heat the battery cell; S3. After pre - heating, the pre - heating mechanism (2) will automatically release the battery cell, and the machine body mechanism (1) will convey and discharge the battery cell.

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