A soft pack battery injection production system

Abstract

The utility model discloses a soft-pack battery injection production system, including multiple injection production lines and circulating logistics lines arranged at both ends of the multiple injection production lines. Both ends of the injection production lines are provided with transition cabins respectively connected to the logistics lines at both ends. The logistics lines are equipped with material boxes for loading battery cells. The transition cabins include a feed channel and a discharge channel connected to the logistics lines, so that the material boxes on the logistics lines enter from the feed channel and then return to the logistics line from the discharge channel. The utility model builds a bilateral circulation logistics line based on multiple production lines, realizes the automated operation of feeding and discharging materials on multiple production lines, and effectively improves production capacity.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery production, and in particular relates to a soft-pack battery liquid injection production system. Background Art

[0002] With the rapid development of the battery industry and the increase in market demand, the battery field has an increasing demand for production capacity. At present, the production capacity of soft-pack battery production lines tends to be stable, and it is difficult to increase the production capacity of a single production line, especially in the liquid filling stage. It is often necessary to manually transfer the unfilled empty battery cells and the finished battery cells after liquid filling. Establishing more production lines can effectively solve the capacity problem, but it also increases labor costs and transportation time. In addition, the site limits the implementation of multiple production lines. How to increase production capacity based on existing production lines and existing sites is an urgent problem to be solved. Utility Model Content

[0003] The purpose of the utility model is to provide a soft-pack battery injection production system, which builds a bilateral circulation logistics line based on multiple production lines, realizes the automated operation of material loading and unloading on multiple production lines, and effectively improves production capacity.

[0004] The utility model adopts a technical solution to solve its technical problem, which is to propose a soft-pack battery filling production system, including multiple filling production lines and circulating logistics lines arranged at both ends of the multiple filling production lines, transition cabins are arranged at both ends of the filling production lines and are respectively connected to the logistics lines at both ends, the logistics lines are equipped with material boxes for loading battery cells, and the transition cabin includes a feeding channel and a discharging channel connected to the logistics lines, so that the material boxes on the logistics line enter from the feeding channel and return to the logistics line from the discharging channel.

[0005] Furthermore, the two ends of the liquid injection production line include a transition chamber at the feed end and a transition chamber at the discharge end, and the logistics line includes logistics line one and logistics line two. The logistics line one is located at the feed end of the liquid injection production line, and the logistics line two is located at the discharge end of the liquid injection production line.

[0006] Furthermore, an identification module for identifying whether the material box is loaded with empty battery cells or liquid-injected battery cells is provided at the docking position between the logistics line and the liquid injection production line. The identification module includes a feed identification unit and a discharge identification unit. The feed identification unit is provided at the docking position between the feed channel and the logistics line, and the discharge identification unit is provided at the docking position between the discharge channel and the logistics line.

[0007] Furthermore, the logistics line is respectively provided with an independently operated first branch channel and a second branch channel corresponding to the feed channel and the discharge channel. The first branch channel is erected between the logistics line and the feed channel to transfer the boxes loaded with empty battery cells or empty boxes on the logistics line to the feed channel, and the second branch channel is erected between the logistics line and the discharge channel to transfer the boxes loaded with liquid-filled battery cells or empty boxes on the discharge channel to the logistics line.

[0008] Furthermore, it also includes an aisle, one end of which passes over or under the logistics line and is arranged between two adjacent injection production lines, and the other end of the aisle is located outside the logistics line.

[0009] Furthermore, the liquid injection production line sequentially includes a lower battery position, an empty package weighing module, a battery cell clamping module, a vacuum liquid injection module, a vacuum standing module, a vacuum packaging module, a battery cell lower clamping module, a liquid injection weighing module, an NG buffer module, and a battery boxing position, wherein the lower battery position is the feeding end of the liquid injection production line, and the battery boxing position is the discharging end of the liquid injection production line.

[0010] Furthermore, the lower battery position is equipped with a robot for grabbing and transferring empty battery cells, which grabs the empty battery cells in the material box and transfers them to the battery cell clamping module; the empty battery weighing module includes a barcode scanner and a weighing sensor, the barcode scanner is arranged on one side of the running path of the robot, the weighing sensor is arranged on the robot, the weighing sensor is electrically connected to the barcode scanner, and the empty battery weighing module is electrically connected to the vacuum liquid injection module.

[0011] Furthermore, the battery boxing position is equipped with a robot for grabbing and transferring liquid-filled cells, which grabs the liquid-filled cells on the cell lower clamping module and transfers them to the material box; the liquid filling weighing module includes a barcode scanner and a weighing sensor, the barcode scanner is arranged on one side of the running path of the robot, and the weighing sensor is arranged on the robot, and the weighing sensor is electrically connected to the barcode scanner.

[0012] Furthermore, the NG buffer module is electrically connected to the liquid filling weighing module and the empty package weighing module, and the liquid filling weighing module and the empty package weighing module are electrically connected to the robot at the battery box loading position.

[0013] Furthermore, an empty package NG cache module is provided between the lower battery position and the battery cell clamping module, the empty package weighing module is electrically connected to the empty package NG cache module, and the empty package weighing module is electrically connected to the manipulator of the lower battery position; the liquid filling weighing module is electrically connected to the NG cache module, and the liquid filling weighing module is electrically connected to the manipulator of the battery boxing position.

[0014] Furthermore, the transition cabin also includes a transfer channel, which is installed between the feed channel and the discharge channel and is used to transfer the material box from the feed channel to the discharge channel.

[0015] Furthermore, the feed channel, the discharge channel and the transfer channel can all operate independently.

[0016] Furthermore, the feed channel and the discharge channel operate independently, the feed channel extends out of a docking channel, the docking channel and the discharge channel operate synchronously, and the front end of the docking channel docks with the discharge channel, thereby transferring the material box to the discharge channel.

[0017] The beneficial effects of the utility model are:

[0018] The utility model proposes a soft-pack battery injection production system, which builds a bilateral circulation logistics line based on multiple injection production lines, loads battery cells through material boxes, realizes automatic loading and unloading operations of the injection production line, and improves production capacity.

[0019] The material boxes are recycled on the logistics line, and the material boxes do not need to be transferred between two logistics lines, which improves the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a production line layout diagram of a soft-pack battery filling production system according to an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of a liquid injection production line of a soft-pack battery liquid injection production system according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the embodiments of the utility model and the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work. In addition, the design orientation only represents the relative position relationship between the components, not the absolute position relationship.

[0024] The utility model embodiment provides a soft pack battery injection production system, please refer to Figure 1 , Figure 2 It mainly includes multiple liquid injection production lines and circulating logistics lines arranged at both ends of the multiple liquid injection production lines. Transition cabins are arranged at both ends of the liquid injection production lines and are respectively connected to the logistics lines at both ends. The logistics lines are equipped with material boxes for loading battery cells. The transition cabin includes a feeding channel and a discharging channel connected to the logistics lines, so that the material boxes on the logistics lines enter from the feeding channel and return to the logistics line from the discharging channel.

[0025] In the present application, multiple injection production lines can be arranged in parallel, and the functional ends of the injection production lines are flush, that is, the feed ends are all on the right and the discharge ends are all on the left. Figure 1 As shown in the figure, transition cabins are provided at both the feed end and the discharge end to establish a transfer channel for the material box with the logistics line; the logistics line includes logistics line one and logistics line two. For example, logistics line one is located at the feed end of the liquid injection production line, and logistics line two is located at the discharge end of the liquid injection production line.

[0026] It is understandable that multiple liquid injection production lines can also be arranged and distributed in other forms, as long as their functional ends are connected to the logistics lines.

[0027] As a preferred embodiment, this application uses the right logistics line for uploading empty battery cells and the left logistics line for unloading liquid-filled battery cells as an example for illustration and explanation. This layout reduces the utilization rate of the material boxes on each logistics line, but has a high fault tolerance rate and a low temporary shutdown rate, which is conducive to improving production capacity.

[0028] In a feasible embodiment, when it is possible to identify whether the material box contains empty cells and liquid-filled cells, the functional ends of the liquid-filled production line can be set alternately, and do not need to be on the same side; the material boxes on the two logistics lines are the same, without substantial distinction, and the same logistics line can have material boxes in three states, namely, empty material boxes, material boxes loaded with empty cells, and material boxes with liquid-filled cells. The uploading of material boxes and empty cells and the downloading of liquid-filled cells can be done manually or mechanically, as long as the proportion of material boxes in each state on each logistics line is guaranteed; however, this layout will increase the complexity of the use of material boxes, have a low fault tolerance rate, and a high rate of short-term temporary downtime. More accurate identification and reasonable planning strategies for the arrangement of material boxes are required to achieve better material box utilization.

[0029] In the embodiment of the present application, identification areas are divided on the logistics line, such as Figure 1 As shown in the figure, the status of the material box can be identified in the identification area by visual, weighing and other methods, that is, whether the material box is empty or full. After the identification is completed, it can be determined whether the material box enters the injection production line:

[0030] On logistics line 1, the box full of empty cells enters the injection production line from the feed channel of the transition cabin on logistics line 1 to unload the empty cells; after all the cells in the box are unloaded, the empty box is transferred from the feed channel to the discharge channel, and then returned to logistics line 1 through the discharge channel. In this process, the box is transported between equipments by a carrier, which carries a batch of a certain number of empty cells.

[0031] On the logistics line 2, the empty material boxes enter the liquid injection production line from the feeding channel of the transition cabin on the logistics line 2 to pack the liquid injection cells; after the material boxes are fully loaded, the material boxes are transferred from the feeding channel to the discharging channel, and then returned to the logistics line 2 through the discharging channel. In this process, the material boxes are transported between the equipment by the carrier, and the carrier carries a batch of a certain number of liquid injection cells.

[0032] In an embodiment of the present application, a docking position (i.e., an identification area) between a logistics line and a logistics line and a liquid injection production line is provided with an identification module for identifying whether empty battery cells or liquid-injected battery cells are loaded in a material box. The identification module can be divided into a feed identification unit and a discharge identification unit according to functional requirements. The feed identification unit is provided at the docking position between the feed channel and the logistics line, and the discharge identification unit is provided at the docking position between the discharge channel and the logistics line.

[0033] In a specific embodiment, the recognition module can be arranged above the recognition area, specifically a recognition camera, which uses image recognition to confirm whether the material box is fully loaded with cells; it can specifically include two units, serving the feed channel and the discharge channel respectively. More precisely, image recognition can be performed based on the difference between the liquid-filled cells and the empty cells to determine whether the cells in the material box are filled with liquid. It is understandable that the liquid-filled cells are vacuum-sealed, and their appearance is more "compact" than that of the empty cells, and have certain identifiable features.

[0034] In another specific embodiment, the identification module can be arranged below the identification area or embedded in the logistics line, specifically a weighing sensor or a weighing meter, which can confirm whether the material box is fully loaded with battery cells by weighing; it can specifically include two units, serving the feeding channel and the discharging channel respectively. More precisely, it can be identified based on the weight difference between the liquid-filled battery cells and the empty battery cells, so as to determine whether the battery cells in the material box are filled with liquid. It can be fed that the weight of the liquid-filled battery cells after liquid injection is heavier than that of the empty battery cells. There are multiple liquid-filled battery cells in the material box, and more weight is superimposed, so that sufficient difference data can be measured.

[0035] The above two implementation modes can be selected for implementation according to specific parameter conditions. If there is no need to identify whether liquid is injected, but only a need to identify whether it is fully loaded, a relatively rough identification method can be used; if there is a need to identify whether liquid is injected, a more accurate and precise identification method is required. Under the above guidance, ordinary technicians in this field can easily obtain a solution based on the existing technology, so it will not be described in detail here.

[0036] In the embodiments of the present application, interaction is required between the logistics line and the transition cabin to realize the transfer of material boxes. After identifying the status of the material boxes, the material boxes can be transferred in real time or the status of the material boxes can be detected to see whether they meet normal operating standards, so as to avoid safety hazards or waste of resources.

[0037] In the embodiments of the present application, the logistics line may be a circulating conveying structure, with a plurality of powered rollers disposed on the conveying surface to achieve the conveying of the material box; it may also be a circulating conveyor belt.

[0038] In a feasible embodiment, the logistics line is provided with an independently operated first branch channel and a second branch channel corresponding to the feed channel and the discharge channel respectively. The first branch channel is set between the logistics line and the feed channel to transfer the boxes loaded with empty battery cells or empty boxes on the logistics line to the feed channel. The second branch channel is set between the logistics line and the discharge channel to transfer the boxes loaded with liquid-filled battery cells or empty boxes on the discharge channel to the logistics line.

[0039] For example, a fork plate is set between the first branch and the material line. When the material box to be fed into the production line runs to the first branch, the fork plate opens to gather the material box into the first branch and transport it from the first branch to the feeding channel. When the fork plate is closed, the first branch can be closed, and the connection point can be located on the upstream side wall. In this process, the steering adjustment of the material box is completed. The same setting can be made between the second branch and the material line.

[0040] In another feasible embodiment, the feed channel and the discharge channel can be directly connected to the logistics line to implement the functions of the first branch channel and the second branch channel. During this process, the operation of the feed channel and the discharge channel are independently controlled, but the problem of the material box posture still needs to be solved. A turning roller surface can be set in the logistics line to solve this problem. Specifically, the feed channel and the discharge channel are both connected to the turning roller surface. When the material box to be entered into the production line runs to the turning roller surface, the turning roller surface turns the material box and outputs it in the direction of the feed channel, and then the feed channel carries out subsequent transportation.

[0041] Exemplarily, a steering roller surface may be provided at the docking position (identification area), the steering roller surface including at least two groups of power rollers, one group being power rollers in the normal operating direction, and the other group being steering rollers. When steering is required, the power rollers and the steering rollers cooperate to drive the material box, thereby realizing steering conveying of the material box; or a plurality of groups of power rollers capable of synchronously adjusting the conveying direction may be provided on the steering roller surface. When operating normally, the rollers are driven in the transport direction; when steering conveying is required, the rollers are conveyed in the direction of the feed channel, thereby completing the steering in the process of conveying the material box to the feed channel.

[0042] In the embodiment of the present application, the transition chamber is connected to the injection production line, and the transition chamber and the production line have a certain overlapping area, so as to realize the transfer operation of the battery cells between the two. The material box is also transported in the transition chamber as a carrier and returned to the logistics line.

[0043] In a specific embodiment, the transition chamber further includes a transfer channel for transferring the material box from the feed channel to the discharge channel. The transfer channel is arranged between the feed channel and the discharge channel, and the three channels are arranged in a horizontal "U" shape. Figure 1 Taking logistics line 1 as an example, the feed channel is horizontally located at the lower side, and the discharge channel is horizontally located at the upper side. The outer ends of the two are connected to logistics line 1, and the transfer channel is vertically located at the inner ends of the two. The three are connected in sequence to realize the transfer of the material box.

[0044] Exemplarily, the feed channel, the discharge channel, and the transfer channel can all operate independently. The feed channel is used to transport the material box to the transfer channel, where the empty battery cells are unloaded; at this time, the feed channel can still receive the material box full of empty battery cells, and wait for the empty battery cells in the material box on the transfer channel to be unloaded; the empty material box is transferred to the discharge channel and finally returned to the logistics line. The same is true for the boxing of liquid-filled batteries.

[0045] In a feasible embodiment, the feed channel extends out of the docking channel, the docking channel and the discharge channel operate synchronously, and the front end of the docking channel docks with the discharge channel, thereby transferring the material box to the discharge channel.

[0046] For example, the feed channel and the discharge channel operate independently, and multiple feasible battery unloading positions can be set on the docking channel, so that multiple boxes full of empty cells can be pre-stored; the empty boxes are transferred to the discharge channel and finally returned to the logistics line. The same is true for the boxing of liquid-filled cells.

[0047] In the present application, the liquid filling production line includes a lower battery position, an empty package weighing module, a battery cell clamping module, a vacuum liquid filling module, a vacuum standing module, a vacuum packaging module, a battery cell lower clamping module, a liquid filling weighing module, an NG buffer module, and a battery boxing position in sequence. The lower battery position is the feeding end of the liquid filling production line, and the battery boxing position is the discharging end of the liquid filling production line.

[0048] In an embodiment of the present application, a robot for grabbing and transferring empty battery cells is installed in the lower battery position, and the empty battery cells in the material box are grabbed and transferred to the battery cell clamping module; the empty battery weighing module includes a barcode scanner and a weighing sensor. The barcode scanner is arranged on one side of the running path of the robot, and the weighing sensor is arranged on the manipulator. The weighing sensor is electrically connected to the barcode scanner, and the empty battery weighing module is electrically connected to the vacuum injection module. During vacuum injection, battery cell identification can be performed based on the empty battery weighing data. Unqualified products will not be subjected to vacuum injection, packaging, etc., and will only be transported along with the process.

[0049] In an embodiment of the present application, a robot for grabbing and transferring liquid-filled cells is installed in the battery box loading position, and the liquid-filled cells on the cell lower clamping module are grabbed and transferred to the material box; the liquid filling weighing module includes a barcode scanner and a weighing sensor, the barcode scanner is arranged on one side of the running path of the robot, and the weighing sensor is arranged on the robot, and the weighing sensor is electrically connected to the barcode scanner.

[0050] See also Figure 2 Based on the layout of the liquid injection production line of the present application, the empty battery cells are grabbed from the material box by a robot at the lower battery position and transferred to the battery cell clamping module. During this process, code scanning and weight detection are performed. If the weight detection fails, liquid injection is not performed; only empty battery cells that pass the weight detection are injected. The liquid-injected battery cells are grabbed from the battery cell lower clamping module and transferred to the material box by a robot at the battery boxing position. During this process, code scanning and weight detection are performed. If the weight detection fails, the unqualified battery cells are transferred to the NG buffer module; if the weight detection passes, the battery cells are boxed.

[0051] In this application, the NG buffer module is used to temporarily store unqualified cells, which may specifically include empty cells and liquid-filled cells. Since the screening of the two types of cells is at different stages, the following two implementation methods may be provided for convenience and timeliness:

[0052] One is to set up only one set of NG buffer modules, and finally screen and remove the battery cells; in this embodiment, the NG buffer module can be set at the battery cell boxing position, and screen and remove the battery cells through battery cell identification when scanning the code. The NG buffer module can be electrically connected to the liquid filling weighing module and the empty package weighing module respectively, and then determine whether the battery cell is qualified through weight detection, whether it is an empty package battery cell or a liquid filling battery cell; the liquid filling weighing module and the empty package weighing module are electrically connected to the robot at the battery boxing position, so that after the barcode scanner scans the battery cell, it can obtain whether the weight detection of the battery cell is qualified, and the robot can directly remove the unqualified battery cell or pack the qualified battery cell.

[0053] The second is to add a set of empty package NG buffer modules to cooperate with the NG buffer modules at the back end to implement the rejection of unqualified battery cells; specifically, an empty package NG buffer module is provided between the lower battery position and the battery cell clamping module, the empty package weighing module is electrically connected to the empty package NG buffer module, and the empty package weighing module is electrically connected to the manipulator at the lower battery position; the liquid injection weighing module is electrically connected to the NG buffer module, and the liquid injection weighing module is electrically connected to the manipulator at the battery boxing position. In this case, the weight detection of the empty package battery cells does not need to be synchronized to the back end of the production line, and can be directly rejected in response, without occupying the fixture position of the battery cell clamping module, which effectively increases the battery cell injection ratio; at the same time, the front and rear ends are each equipped with a cache module, and the battery cell category in the cache module is single, so there is no need for manual identification, which reduces safety hazards and increases the cache processing cycle of the production line.

[0054] It can be understood that the grabbing position of empty battery cells and the empty NG buffer module should be within the operating range of the robot in the lower battery position; the grabbing position of filled battery cells and the NG buffer module should be evenly within the operating range of the robot in the battery box.

[0055] In an embodiment of the present application, there are multiple liquid injection production lines between two logistics lines. Aisles can be set above or below the logistics lines to allow staff to enter between the liquid injection production lines for inspection and maintenance or production inspection. Specifically, the aisle can be a downward stepped structure or an upward climbing structure; illustratively, one end of the aisle passes over or under the logistics line and is arranged between two adjacent liquid injection production lines; the other end of the aisle is located outside the logistics line, connecting the inside and outside of the logistics line.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0057] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation methods, and the specific embodiments of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A soft pack battery injection production system, characterized in that: It includes multiple liquid injection production lines and circulating logistics lines arranged at both ends of the multiple liquid injection production lines. Transition cabins are arranged at both ends of the liquid injection production lines and are respectively connected to the logistics lines at both ends. The logistics lines are equipped with material boxes for loading battery cells. The transition cabin includes a feeding channel and a discharging channel connected to the logistics lines, so that the material boxes on the logistics lines enter from the feeding channel and return to the logistics line from the discharging channel.

2. A soft pack battery injection production system according to claim 1, characterized in that: The two ends of the liquid injection production line include a feed end and a discharge end, and the logistics line includes logistics line 1 and logistics line 2. The logistics line 1 is located at the feed end of the liquid injection production line, and the logistics line 2 is located at the discharge end of the liquid injection production line.

3. A soft pack battery injection production system according to claim 1, characterized in that: The docking position between the logistics line and the liquid injection production line is provided with an identification module for identifying whether the material box is loaded with empty battery cells or liquid-injected battery cells, and the identification module includes a feeding identification unit and a discharging identification unit. The feeding identification unit is arranged at the docking position between the feeding channel and the logistics line, and the discharging identification unit is arranged at the docking position between the discharging channel and the logistics line.

4. A soft pack battery injection production system according to claim 1, characterized in that: The logistics line is provided with an independently operated first branch channel and a second branch channel corresponding to the feed channel and the discharge channel, respectively. The first branch channel is set between the logistics line and the feed channel, and transfers the boxes loaded with empty battery cells or empty boxes on the logistics line to the feed channel; the second branch channel is set between the logistics line and the discharge channel, and transfers the boxes loaded with liquid-filled battery cells or empty boxes on the discharge channel to the logistics line.

5. A soft pack battery injection production system according to claim 1, characterized in that: It also includes an aisle, one end of which passes over or under the logistics line and is arranged between two adjacent liquid injection production lines, and the other end of the aisle is located outside the logistics line.

6. A soft pack battery injection production system according to claim 1, characterized in that: The liquid injection production line sequentially includes a lower battery position, an empty package weighing module, a battery cell clamping module, a vacuum liquid injection module, a vacuum standing module, a vacuum packaging module, a battery cell lower clamping module, a liquid injection weighing module, an NG buffer module, and a battery boxing position, wherein the lower battery position is the feeding end of the liquid injection production line, and the battery boxing position is the discharging end of the liquid injection production line.

7. A soft pack battery injection production system according to claim 6, characterized in that: The lower battery position is equipped with a robot for grabbing and transferring empty battery cells, which grabs the empty battery cells in the material box and transfers them to the battery cell clamping module; the empty battery weighing module includes a barcode scanner and a weighing sensor, the barcode scanner is arranged on one side of the running path of the robot, the weighing sensor is arranged on the robot, the weighing sensor is electrically connected to the barcode scanner, and the empty battery weighing module is electrically connected to the vacuum liquid injection module.

8. A soft pack battery injection production system according to claim 6, characterized in that: The battery boxing position is equipped with a robot for grabbing and transferring liquid-filled batteries, which grabs the liquid-filled batteries on the battery lower clamping module and transfers them to the material box; the liquid filling weighing module includes a barcode scanner and a weighing sensor, the barcode scanner is arranged on one side of the running path of the robot, and the weighing sensor is arranged on the robot, and the weighing sensor is electrically connected to the barcode scanner.

9. A soft pack battery injection production system according to claim 8, characterized in that: The NG buffer module is electrically connected to the liquid filling weighing module and the empty package weighing module, and the liquid filling weighing module and the empty package weighing module are electrically connected to the manipulator of the battery box loading position.

10. A soft pack battery injection production system according to claim 7 or 8, characterized in that: An empty package NG cache module is provided between the lower battery position and the battery cell clamping module, the empty package weighing module is electrically connected to the empty package NG cache module, and the empty package weighing module is electrically connected to the manipulator of the lower battery position; the liquid filling weighing module is electrically connected to the NG cache module, and the liquid filling weighing module is electrically connected to the manipulator of the battery boxing position.

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