Soft package lithium battery edge cutting mechanism

Abstract

The utility model relates to an edge cutting mechanism for a soft package lithium battery in the technical field of battery edge cutting. The edge cutting mechanism comprises a mounting frame, a lifting assembly, an edge cutting assembly and a limiting assembly, the lifting assembly comprises a driving part and two groups of guide parts with identical structures, the driving part is arranged in the middle of the top surface of the mounting frame, and the guide parts are symmetrically arranged on the top surfaces of two ends of the mounting frame; the edge cutting assembly comprises a mounting frame, an air cylinder and a cutting-off piece, the mounting frame is arranged below the lifting assembly, the driving end of the driving piece and the bottom face of the guiding piece are both connected with the top face of the mounting frame, the air cylinder is arranged on the front surface of the mounting frame, and the cutting-off piece is arranged on the front surface of the driving end of the air cylinder; the limiting assembly is arranged on the top face of the edge cutting assembly. The driving part is driven by compressed air, so that the trimming assembly is driven to move up and down so as to determine the height position of the trimming assembly and the battery, the air cylinder in the trimming assembly drives the cutting part to move left and right to complete cutting of the aluminum-plastic film air bag, and compared with a previous structure, the trimming device can be compatible with trimming of a larger battery.

Description

Technical Field

[0001] The utility model relates to the technical field of battery trimming, in particular to a trimming mechanism for a soft-pack lithium battery. Background Art

[0002] In the production process of soft-package batteries, after the battery is evacuated and sealed, the battery air bag needs to be punctured after the battery is charged and discharged to discharge the excess electrolyte and the gas after the chemical reaction in the battery. After the electrolyte and gas are discharged, the excess air bag needs to be cut off and the air bag mouth is heat-sealed.

[0003] The Chinese patent with publication number CN203526674U discloses a soft-package lithium-ion battery trimming mechanism, but it still has the following shortcomings: it cannot adapt to batteries of various sizes and models. When trimming batteries of different sizes and models, the existing soft-package lithium battery trimming mechanism generally chooses to manually adjust the position of the trimming knife of the trimming mechanism or adjust the trimming range of the mechanism, resulting in low efficiency and insufficient compatibility, and cannot meet the production needs of batteries of various sizes and models.

[0004] Therefore, a soft-pack lithium battery trimming mechanism is urgently needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a soft-pack lithium battery trimming mechanism, which can trim batteries of different models and sizes without manually adjusting the position of the mechanism or the trimming knife or replacing the trimming knife, and has higher compatibility.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] Soft pack lithium battery trimming mechanism, including:

[0008] Mounting frame;

[0009] The lifting assembly includes a driving member and two sets of guide members with completely identical structures, wherein the driving member is arranged in the middle of the top surface of the mounting frame, and the guide members are symmetrically arranged on the top surfaces of both ends of the mounting frame;

[0010] The trimming assembly comprises a mounting frame, a cylinder and a cutting piece, wherein the mounting frame is arranged below the lifting assembly, the driving end of the driving member and the bottom surface of the guide member are both connected to the top surface of the mounting frame, the mounting frame can reciprocate up and down through the driving of the driving member and the guide limit of the guide member, the cylinder is arranged on the front surface of the mounting frame, the cutting piece is arranged on the front surface of the driving end of the cylinder, and the cutting piece can reciprocate left and right through the driving of the cylinder;

[0011] The limiting component is arranged on the top surface of the edge cutting component.

[0012] Furthermore, the mounting frame includes a longitudinal cylinder mounting plate, the bottom surfaces of both ends of the longitudinal cylinder mounting plate are provided with support plates, the bottom surface of the support plate is provided with a base plate, and reinforcing ribs are provided on the inner side of the connection between the longitudinal cylinder mounting plate and the support plate.

[0013] Furthermore, the mounting frame comprises a horizontal cylinder mounting plate, the top and bottom surfaces of which are respectively provided with a guide rod mounting plate and a frame bottom plate, and the rear surface of which is evenly spaced with a plurality of reinforcing plates.

[0014] Furthermore, the installation frame also includes a pressing plate, which is arranged on the bottom surface of the frame bottom plate.

[0015] Furthermore, a floating joint is provided at the driving end of the driving member, and a bottom surface of the floating joint is connected to a top surface of the installation frame.

[0016] Furthermore, the guide member includes a linear bearing and a guide rod body, the linear bearing is sleeved on the guide rod body, the linear bearing is installed on the top surface of the mounting frame, and the lower end of the guide rod body extends out of the mounting frame and is connected to the top surface of the mounting frame.

[0017] Furthermore, the cylinder is arranged on the front surface of the horizontal cylinder mounting plate, and the cylinder is a magnetic coupling cylinder.

[0018] Furthermore, the cutting piece includes a cutter mounting plate, which is arranged on the front surface of the driving end of the cylinder, and a cutter top plate is arranged on the rear surface of the lower end of the cutter mounting plate, and a blade is clamped between the cutter mounting plate and the cutter top plate.

[0019] Furthermore, the limit assembly includes a sensor guide rail, which is arranged on the front end top surface of the mounting frame. A plurality of sensor bodies are slidably clamped in the sensor guide rail. The sensor body is used to control the stroke of the cylinder. The upper front surface of the cutter mounting plate is provided with a sensor sheet that cooperates with the sensor body.

[0020] Furthermore, the driving member is a thin cylinder.

[0021] The beneficial effects of the utility model are as follows:

[0022] The utility model provides a soft-pack lithium battery trimming mechanism, in which a driving member is driven by compressed air, thereby driving a trimming assembly to move up and down, so as to determine the height position of the trimming assembly and the battery, and a cylinder in the trimming assembly drives a cutting member to move left and right, so as to complete the cutting of the aluminum-plastic film air bag. Compared with the previous structure, it can be compatible with the trimming of larger batteries, avoids frequent replacement or repair of the cutter, and thus greatly reduces the after-sales cost; in this process, the guide member provides a guiding and supporting function for the installation frame, so that the cylinder installed in the installation frame is more stable, thereby improving the cutting accuracy of the cutter, and the limit assembly can be manually adjusted according to the production needs, so as to control the stroke of the cylinder, and then control the range of trimming, so as to meet the needs of more batteries of different sizes and models, and improve compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of the edge cutting mechanism of the soft-pack lithium battery of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the edge cutting mechanism of the soft-pack lithium battery of the utility model;

[0025] Figure 3 It is a schematic diagram of the structure of the trimming assembly of the trimming mechanism of the soft-pack lithium battery of the utility model;

[0026] Figure 4 This is a schematic structural diagram of the trimming assembly of the trimming mechanism of the soft-pack lithium battery of the utility model from another angle;

[0027] Figure 5 It is a schematic diagram of the installation frame structure of the soft-pack lithium battery trimming mechanism of the utility model;

[0028] In the figure: 1-lifting assembly, 101-thin cylinder, 102-floating joint, 103-linear bearing, 104-guide rod body, 2-mounting frame, 201-longitudinal cylinder mounting plate, 202-reinforcement rib, 203-support plate, 204-base plate, 3-trimming assembly, 301-mounting frame, 302-magnetic coupling cylinder, 303-cutting piece, 3031-cutter top plate, 3032-blade, 3033-cutter mounting plate, 3011-guide rod mounting plate, 3012-reinforcement plate, 3013-frame bottom plate, 3014-pressing plate, 3015-horizontal cylinder mounting plate, 4-sensor guide rail, 5-sensor body, 6-sensor sheet. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0030] See also Figure 1-Figure 5The specific implementation of the soft-pack lithium battery trimming mechanism includes:

[0031] A mounting frame 2, a lifting assembly 1, a trimming assembly 3 and a limiting assembly;

[0032] The lifting assembly 1 includes a driving member and two sets of guide members with identical structures. The driving member is arranged in the middle of the top surface of the mounting frame 2. The driving member is a thin cylinder 101. The guide members are symmetrically arranged on the top surfaces of both ends of the mounting frame 2.

[0033] The trimming assembly 3 includes a mounting frame 301, a cylinder and a cutting piece 303. The mounting frame 301 is arranged below the lifting assembly 1. The driving end of the driving member and the bottom surface of the guide member are both connected to the top surface of the mounting frame 301. The mounting frame 301 can reciprocate up and down through the driving of the driving member and the guide limit of the guide member. The cylinder is arranged on the front surface of the mounting frame 301. The cutting piece 303 is arranged on the front surface of the driving end of the cylinder. The cutting piece 303 can reciprocate left and right through the driving of the cylinder. The cylinder is a magnetic coupling cylinder 302.

[0034] The limiting component is arranged on the top surface of the edge trimming component 3 , and the limiting component is used to control the edge trimming range of the edge trimming component 3 .

[0035] The driving member is driven by compressed air, thereby driving the trimming assembly 3 to move up and down, so as to determine the height position of the trimming assembly 3 and the battery. The cylinder in the trimming assembly 3 drives the cutting member 303 to move left and right to complete the cutting of the aluminum-plastic film air bag. Compared with the previous structure, it can be compatible with the trimming of larger batteries, avoiding frequent replacement or repair of the cutter, thereby greatly reducing the after-sales cost; in this process, the guide member provides guidance and support for the installation frame 301, so that the magnetic coupling cylinder 302 installed in the installation frame 301 is more stable, thereby improving the cutting accuracy of the cutter, and the limit assembly can be manually adjusted according to production needs, thereby controlling the stroke of the cylinder, and then controlling the range of trimming to meet more batteries of different sizes and models, thereby improving compatibility.

[0036] See also Figure 1 The mounting frame 2 includes a longitudinal cylinder mounting plate 201, and support plates 203 are provided on the bottom surfaces of both ends of the longitudinal cylinder mounting plate 201. A base plate 204 is provided on the bottom surface of the support plate 203. A reinforcing rib 202 is provided on the inner side of the connection between the longitudinal cylinder mounting plate 201 and the support plate 203. The reinforcing rib 202 can make the mounting frame 2 more stable and firm as a whole, avoid shaking during work, and further improve the accuracy of edge cutting.

[0037] The mounting frame 301 includes a horizontal cylinder mounting plate 3015, and the top and bottom surfaces of the horizontal cylinder mounting plate 3015 are respectively provided with a guide rod mounting plate 3011 and a frame bottom plate 3013. The rear surface of the horizontal cylinder mounting plate 3015 is evenly spaced with a plurality of reinforcing plates 3012. The reinforcing plates 3012 can make the mounting frame 301 as a whole more stable and firm to avoid shaking during operation, thereby further improving the accuracy of edge cutting. The mounting frame 301 also includes a pressing plate 3014, which is arranged on the bottom surface of the frame bottom plate 3013. The pressing plate 3014 can play a role in pressing, fixing and protecting the workpiece, thereby improving the accuracy of edge cutting.

[0038] A floating joint 102 is provided at the driving end of the driving member, and the bottom surface of the floating joint 102 is connected to the top surface of the installation frame 301. The floating joint 102 can prevent the inner wall of the cylinder from being scratched and causing leakage due to installation errors, and can reduce errors, protect related components, maintain smooth operation of the equipment, and extend the service life of the equipment.

[0039] The guide member includes a linear bearing 103 and a guide rod body 104. The linear bearing 103 has low friction and is relatively stable. It does not change with the bearing speed and can obtain smooth linear motion with high sensitivity and high precision. The linear bearing 103 is sleeved on the guide rod body 104. The linear bearing 103 is installed on the top surface of the mounting frame 2. The lower end of the guide rod body 104 extends out of the mounting frame 2 and is connected to the top surface of the mounting frame 301. The guide rod can play a role in guiding, limiting and supporting.

[0040] The cylinder is arranged on the front surface of the horizontal cylinder mounting plate 3015.

[0041] The cutting piece 303 includes a cutter mounting plate 3033, which is arranged on the front surface of the driving end of the cylinder. A cutter top plate 3031 is arranged on the rear surface of the lower end of the cutter mounting plate 3033, and a blade 3032 is clamped between the cutter mounting plate 3033 and the cutter top plate 3031.

[0042] The limit assembly includes a sensor guide rail 4, which is arranged on the front end top surface of the mounting frame 301. A sensor body 5 is slidably clamped in the sensor guide rail 4. The sensor body 5 is used to control the stroke of the cylinder. The upper front surface of the cutter mounting plate 3033 is provided with a sensor sheet 6 that cooperates with the sensor body 5. Several sensor bodies 5 can be provided. By cooperating between two adjacent sensor bodies 5 and the sensor sheet 6, the stroke of the magnetic coupling cylinder 302 can be controlled, thereby controlling the range of the cutting edge.

[0043] The utility model provides a soft-pack lithium battery trimming mechanism, in which a driving member is driven by compressed air, thereby driving a trimming assembly 3 to move up and down, so as to determine the height position of the trimming assembly 3 and the battery, and a cylinder in the trimming assembly 3 drives a cutting member 303 to move left and right, so as to complete the cutting of the aluminum-plastic film air bag. Compared with the previous structure, it can be compatible with the trimming of larger batteries, avoiding frequent replacement or repair of the cutter, thereby greatly reducing the after-sales cost; in this process, the guide member provides a guiding and supporting function for the installation frame 301, so that the cylinder installed in the installation frame 301 is more stable, thereby improving the cutting accuracy of the cutter, and the limit assembly can be manually adjusted according to the production needs, thereby controlling the stroke of the cylinder, and then controlling the trimming range, so as to meet the needs of more batteries of different sizes and models, and improve compatibility.

[0044] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A soft-pack lithium battery trimming mechanism, characterized in that: include: Mounting frame; The lifting assembly includes a driving member and two sets of guide members with completely identical structures, wherein the driving member is arranged in the middle of the top surface of the mounting frame, and the guide members are symmetrically arranged on the top surfaces of both ends of the mounting frame; The trimming assembly comprises a mounting frame, a cylinder and a cutting piece, wherein the mounting frame is arranged below the lifting assembly, the driving end of the driving member and the bottom surface of the guide member are both connected to the top surface of the mounting frame, the mounting frame can reciprocate up and down through the driving of the driving member and the guide limit of the guide member, the cylinder is arranged on the front surface of the mounting frame, the cutting piece is arranged on the front surface of the driving end of the cylinder, and the cutting piece can reciprocate left and right through the driving of the cylinder; The limiting component is arranged on the top surface of the edge cutting component.

2. The soft-pack lithium battery trimming mechanism according to claim 1, characterized in that: The mounting frame comprises a longitudinal cylinder mounting plate, the bottom surfaces of both ends of the longitudinal cylinder mounting plate are provided with support plates, the bottom surface of the support plate is provided with a foot plate, and reinforcing ribs are provided on the inner side of the connection between the longitudinal cylinder mounting plate and the support plate.

3. The soft-pack lithium battery trimming mechanism according to claim 1, characterized in that: The installation frame comprises a horizontal cylinder installation plate, the top surface and the bottom surface of the horizontal cylinder installation plate are respectively provided with a guide rod installation plate and a frame bottom plate, and the rear surface of the horizontal cylinder installation plate is evenly spaced with a plurality of reinforcing plates.

4. The soft-pack lithium battery trimming mechanism according to claim 3, characterized in that: The installation frame also includes a pressing plate, which is arranged on the bottom surface of the frame bottom plate.

5. The soft-pack lithium battery trimming mechanism according to claim 1, characterized in that: The driving end of the driving member is provided with a floating joint, and the bottom surface of the floating joint is connected to the top surface of the installation frame.

6. The soft-pack lithium battery trimming mechanism according to claim 1, characterized in that: The guide member comprises a linear bearing and a guide rod body, wherein the linear bearing is sleeved on the guide rod body and the linear bearing is mounted on the top surface of the mounting frame, and the lower end of the guide rod body extends out of the mounting frame and is connected to the top surface of the mounting frame.

7. The soft-pack lithium battery trimming mechanism according to claim 3, characterized in that: The cylinder is arranged on the front surface of the horizontal cylinder mounting plate, and the cylinder is a magnetic coupling cylinder.

8. The soft-pack lithium battery trimming mechanism according to claim 1, characterized in that: The cutting piece comprises a cutter mounting plate, the cutter mounting plate is arranged on the front surface of the driving end of the cylinder, a cutter top plate is arranged on the rear surface of the lower end of the cutter mounting plate, and a blade is clamped between the cutter mounting plate and the cutter top plate.

9. The soft-pack lithium battery trimming mechanism according to claim 8, characterized in that: The limit assembly includes a sensor guide rail, which is arranged on the front end top surface of the installation frame. Several sensor bodies are slidably clamped in the sensor guide rail. The sensor body is used to control the stroke of the cylinder. The upper front surface of the cutter mounting plate is provided with a sensor sheet that cooperates with the sensor body.

10. The soft-pack lithium battery trimming mechanism according to claim 1, characterized in that: The driving member is a thin cylinder.

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