CN113275325B - Lithium battery pole piece coiled material targeted dust removal belt pressing mechanism - Google Patents

Abstract

The invention relates to the technical field of lithium battery pole piece slitting equipment, and discloses a lithium battery pole piece coiled material targeted dust removal belt pressing mechanism. The lithium battery pole piece coiled material targeted dust removal belt pressing mechanism comprises: the outer surface of the dedusting press roller is provided with a plurality of layers of adhesive layers; the adhesive layer stripping structure is positioned at one side of the dedusting press roller and aligned with the opening of the adhesive layer; the conveying belt structure is positioned at one side of the adhesive layer stripping structure far away from the dedusting press roller; an electrostatic generator in contact with a surface of the conveyor belt structure; and the fixed bracket is fixedly connected with the adhesive layer stripping structure, the conveyor belt structure and the static generator. Through the arrangement of the technical scheme, the adhesive layer can adsorb dust and particles of the coiled material, so that the surface of the coiled material can be kept clean.

Description

Lithium battery pole piece coil targeted dust removal and pressing mechanism

technical field

The invention relates to the technical field of lithium battery pole piece cutting equipment, in particular to a targeted dedusting and pressing mechanism for lithium battery pole piece coils.

Background technique

Lithium-ion batteries have the advantages of high working voltage, high specific energy, high energy density, high output power, long cycle life, and no environmental pollution. They are not only widely used in mobile communication equipment, but also widely used in electric vehicles. , electric tools and other fields, so the performance requirements of lithium batteries are getting higher and higher, which is the main direction of the development of major battery manufacturers at present.

Lithium batteries currently on the market are usually of a laminated structure, that is, the positive electrode sheet, negative electrode sheet, and separator are laminated to form a battery core, and then a casing is packaged outside the battery core. Among them, in the production of positive and negative electrodes, wide raw materials need to be cut into widths of different specifications to meet the needs of use.

Lithium battery pole piece slitting and forming machine has two stepping motors for correcting deviation, two stepping motors for cutter position and two speed regulating motors. There is no physical connection between the motors with the same function. To make the equipment high precision and high efficiency Production must achieve multi-axis high-synchronous control.

Theoretically, the synchronous movement of each axis with equal speed and equal displacement feed is easy to realize and can meet the synchronization requirements whether it is transient or steady state movement. Taking the synchronous control system of two axes as an example, the synchronous error can be obtained as:

(1)

In formula (1), , , , Respectively represent the speed and displacement of the first axis and the second axis of the control system. It can be concluded that if the speed difference between the two axes is always zero at a certain stage of control, then the displacement difference is always zero. The displacement difference between the two axes will be disturbed by the influence of the external environment. In order to achieve displacement synchronization, speed synchronization is sometimes discarded, thereby eliminating the synchronization error between the two axes.

In the production process of pole piece slitting, the raw material coils are required to be kept clean and tidy. In the prior art, an industrial vacuum cleaner is usually used to remove dust from the coiled material, but this dust removal method cannot completely absorb dust and other stains on the coiled material.

Contents of the invention

The purpose of the present invention is to provide a targeted dedusting and pressing mechanism for lithium battery pole piece coils, which can solve the problem of poor dedusting effect in the prior art.

In order to achieve the above purpose, the present invention provides a targeted dedusting and pressing mechanism for lithium battery pole piece coils. The targeted dust removal and pressing mechanism for lithium battery pole piece coils includes:

Dust-removing pressing roller, the outer surface of which has multiple layers of glue, and the dust-removing pressing roller is used for flattening the coiled material and sticking dust and particles on the surface of the coiled material;

The adhesive layer peeling structure is located on one side of the dust removal pressure roller, aligned with the opening of the adhesive layer, and is used to peel the adhesive layer from the dust removal pressure roller;

The conveyor belt structure is located on the side of the adhesive layer peeling structure away from the dust removal pressure roller, and is used to transport the peeled adhesive layer to the side away from the dust removal pressure roller;

an electrostatic generator, in contact with the surface of the conveyor belt structure, for attaching static electricity to the surface of the conveyor belt structure;

And a fixed bracket, which is fixedly connected with the adhesive layer peeling structure, the conveyor belt structure and the static generator.

Through the setting of the above technical scheme, the adhesive layer can absorb the dust and particles of the coiled material, keeping the surface of the coiled material clean; at the same time, the adhesive layer peeling structure can peel off the adhesive layer with gradually reduced adsorption capacity, making a brand new adhesive layer It is in contact with the coil, thus ensuring the continuity of the assembly line operation of the equipment.

Further, the openings of the adhesive layers on the adjacent two sides are 180° with the dust removal pressure roller as the center of the circle.

Further, the adhesive layer peeling structure includes a guide block, a scraper head and a spring steel sheet, the guide block is fixedly connected to the fixing bracket, the guide block is arc-shaped, and the scraper head is hinged to the guide block , the two ends of the spring steel sheet are respectively fixedly connected with the scraper head and the guide block.

Further, the conveyor belt structure includes a conveyor belt, a driving wheel, a driven wheel and a motor, the two ends of the driving wheel and the driven wheel are respectively connected to the fixed bracket bearings on both sides, and the two ends of the conveyor belt are respectively sleeved on the On the driving wheel and the driven wheel, the output shaft of the motor is fixedly connected to the driving wheel, and the motor is fixedly connected to the fixed bracket.

Further, the targeted dedusting and pressing mechanism for lithium battery pole piece coils also includes a collection box, the collection box is a hollow structure with an open top, and the collection box is located at the side of the conveyor belt structure away from the adhesive layer peeling structure. One end is fixedly connected with the fixed bracket.

Further, the two ends of the dust removal pressure roller are respectively connected with connecting blocks; the dust removal pressure roller includes an upper dust removal pressure roller and a lower dust removal pressure roller, and the upper dust removal pressure roller and the lower dust removal pressure roller are in contact with each other. The coiled material is passed between the upper dust-removing pressing roller and the lower dust-removing pressing roller.

Further, the targeted dedusting and pressing mechanism for lithium battery pole piece coils also includes a support structure, the support structure includes a support column, a spring, and a first stepping driver, and the support column is provided with a first sliding groove and a The second sliding slot, the connecting block of the upper dust removal pressure roller is located in the first sliding slot, and is fixedly connected with the top wall of the first sliding slot by the spring; the fixed end of the first stepping driver It is fixedly connected with the bottom wall of the second sliding groove, and its movable end is fixedly connected with the connection block of the lower dust removal pressure roller.

Further, the targeted dedusting and pressing mechanism for lithium battery pole piece coils further includes a controller, and the controller is electrically connected to the first stepping driver.

Further, a rotation position sensor is provided on the side wall of the dust removal pressure roller, and the rotation position sensor is electrically connected to the controller.

Further, the fixed bracket is fixedly connected with a second stepper driver that pushes the fixed bracket to move in the vertical direction, and the second stepper driver is fixedly connected with a third stepper driver that pushes the fixed bracket to move in the horizontal direction .

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

Fig. 1 is the structural representation of a kind of specific embodiment of the present invention;

Figure 2 is an enlarged view of A in Figure 1;

Fig. 3 is a schematic diagram of the structure of the dedusting pressing roller.

Explanation of reference signs

Detailed ways

Specific embodiments of the present invention will be described in detail below. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

In the present invention, unless stated otherwise, the used orientation words such as "upper and lower" usually refer to the orientation in the state of assembly and use. "Inner and outer" refer to inner and outer relative to the outline of each component itself.

In order to solve the problem of poor dust removal effect in the prior art, as shown in Fig. 1-Fig. Dust removal belt mechanism includes:

Dust removal pressing roller 1, its outer surface has multi-layer adhesive layer 11, and described dust removal pressing roller is used for flattening coiled material 10 and sticking the dust and particle of described coiled material 10 surface; The adhesive face of described adhesive layer 11 faces outside;

The adhesive layer peeling structure 2 is located on the side of the dust removal pressure roller 1, aligned with the opening of the adhesive layer 11, and is used to peel the adhesive layer 11 from the dust removal pressure roller 1;

The conveyor belt structure 3 is located on the side of the adhesive layer peeling structure 2 away from the dust removal pressure roller 1, and is used to transport the peeled adhesive layer 11 to the side away from the dust removal pressure roller 1;

An electrostatic generator 4, in contact with the surface of the conveyor belt structure 3, is used to add static electricity to the surface of the conveyor belt structure 3;

And a fixed bracket 5, which is fixedly connected with the adhesive layer peeling structure 2, the conveyor belt structure 3 and the electrostatic generator 4.

Through the setting of the above technical solution, the adhesive layer 11 can absorb the dust and particles of the coiled material 10, so that the surface of the coiled material 10 can be kept clean; at the same time, the adhesive layer peeling structure 2 can peel off the adhesive layer 11 whose adsorption capacity gradually decreases , so that the brand-new adhesive layer 11 is in contact with the coiled material 10, thereby ensuring the continuity of the assembly line operation of the equipment; the electrostatic generator 4 can provide static electricity for the conveyor belt structure 3, and the conveyor belt structure 3 absorbs the stripped adhesive layer 11 by static electricity, The transportation of the adhesive layer 11 is relatively stable.

In order to facilitate the peeling of the adhesive layer 11, as shown in Figure 2 and Figure 3, the openings of the adhesive layer 11 on the adjacent two sides are 180° with the dust removal pressure roller 1 as the center of circle. This setting can avoid the situation that the adhesive layer peeling mechanism 2 simultaneously peels off multiple adhesive layers 11 caused by openings on the same side, so as to improve the accuracy of the number of peeled adhesive layers 11.

Considering that the peeling of the adhesive layer 11 requires a certain pressure from the scraper head 22, and the pressure must not be so large as to puncture the adhesive layer 11, in a preferred case, the adhesive layer peeling structure 2 includes a guide block 21, a scraper Head 22 and spring steel sheet 23, the guide block 21 is fixedly connected with the fixed bracket 5, the guide block 21 is arc-shaped, the scraper head 22 is hinged with the guide block 21, and the spring steel sheet 23 The two ends of each are fixedly connected with the scraper head 22 and the guide block 21 respectively. Through the setting of the above technical solution, the spring steel sheet 23 can give the scraper head 22 a certain pressure when in contact with the adhesive layer 11, but it will not puncture the adhesive layer 11; the arc-shaped guide block 21 can be peeled off. The adhesive layer 11 provides guidance, so that the adhesive layer 11 can be in contact with the structure of the conveyor belt structure 3 smoothly.

In order to transport the adhesive layer 11, in a preferred case, the conveyor belt structure 3 includes a conveyor belt, a driving wheel, a driven wheel and a motor 31, and the two ends of the driving wheel and the driven wheel are respectively connected to the fixed brackets 5 bearings on both sides, Two ends of the conveyor belt are sleeved on the driving wheel and the driven wheel respectively, the output shaft of the motor 31 is fixedly connected to the driving wheel, and the motor 31 is fixedly connected to the fixed bracket 5 .

In order to collect and store the peeled adhesive layer 11, in a preferred case, the targeted dedusting and pressing mechanism for the lithium battery pole piece coil also includes a collection box 6, which is a hollow structure with an open top, and The collection box 6 is located at the end of the conveyor belt structure 3 away from the adhesive layer peeling structure 2 , and is fixedly connected with the fixing bracket 5 .

Considering that the distance between the dedusting pressure roller 1 and the coil will change with the peeling off of the adhesive layer 11, in a preferred case, the two ends of the dedusting pressure roller 1 are respectively bearing-connected with connecting blocks 12; The roll 1 includes an upper dust removal pressure roller and a lower dust removal pressure roller, the upper dust removal pressure roller and the lower dust removal pressure roller are in contact, and the coil 10 is passed between the upper dust removal pressure roller and the lower dust removal pressure roller . The targeted dedusting and pressing mechanism for lithium battery pole piece coils also includes a support structure, the support structure includes a support column 71, a spring 72 and a first step driver 73, and the support column 71 is provided with a first sliding groove and the second sliding groove, the connecting block 12 of the upper dust removal pressure roller is located in the first sliding groove, and is fixedly connected with the top wall of the first sliding groove by the spring 72; the first step driver The fixed end of 73 is fixedly connected with the bottom wall of the second sliding groove, and its movable end is fixedly connected with the connection block 12 of the lower dust removal pressing roller. Through the setting of the above technical solution, the first stepping driver 73 can drive the lower dust removal pressure roller, so that the upper surface kept by the lower dust removal pressure roller remains at a horizontal plane, and then, the restoring force of the spring 72 makes the upper dust removal pressure roller The coiled material 10 can be pressed all the time, so that the lower surface of the upper dedusting pressing roller remains on a horizontal plane.

In order to enable the adhesive layer peeling structure 2 to be aligned with the opening of the adhesive layer 11, in a preferred case, the targeted dust removal and pressing mechanism for the lithium battery pole piece coil also includes a controller, and the controller communicates with the The first step driver 73 is electrically connected. A rotation position sensor 8 is arranged on the side wall of the dust removal pressure roller 1, and the rotation position sensor 8 is electrically connected with the controller. The fixed support 5 is fixedly connected with a second step driver 91 that pushes the fixed support 5 to move in the vertical direction, and the second step driver 91 is fixedly connected with a third step driver 91 that promotes the fixed support 5 to move in the horizontal direction. Enter drive 92.

The specific control method is as follows:

The thickness data of the adhesive layer 11 is set in the controller.

As shown in FIG. 1 , when the adhesive layer 11 needs to be replaced, the rotational position sensor 8 starts to work, collects the angular position of the opening of the adhesive layer 11 , and transmits the signal to the controller.

When the opening moves to the leftmost side (0° to 90°) of the dedusting pressure roller 1, the controller controls the third stepping driver 92 to push the fixed bracket 5 so that the scraper head 22 approaches the glue layer 11.

When the opening of the adhesive layer 11 passed the scraper 22, the adhesive layer 11 peeled off from the dedusting pressing roller 1.

When the opening of the adhesive layer 11 rotated 270° from the leftmost side, the controller controlled the first stepping driver 73 to move upwards by a value of the thickness of the adhesive layer 11, so that the upper surface of the lower dedusting pressure roller remained on a horizontal plane.

At the same time, the controller controls the second stepping driver 91 to move a value of the thickness of the adhesive layer 11, so that the scraping head 22 is aligned with the opening on the horizontal plane.

When one layer of adhesive layer 11 is completely removed from the dust removal pressure roller 1 , the third step driver 92 moves to the side away from the fixed bracket 5 .

Through the setting of the above technical solution, the device can still keep in contact with the coil 10 during the process of peeling off the adhesive layer 11, which ensures the working efficiency and sustainability of the assembly line operation.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention. These simple modifications All belong to the protection scope of the present invention.

In addition, it should be noted that the various specific technical features described in the above specific implementation manners may be combined in any suitable manner if there is no contradiction. In order to avoid unnecessary repetition, various possible combinations are not further described in the present invention.

In addition, various combinations of different embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.

Claims (8)

1. A targeted dedusting and pressing mechanism for lithium battery pole piece coils, characterized in that it includes: Dust removal pressing roller (1), the outer surface of which has multiple layers of glue (11), the dust removal pressing roller is used to flatten the coiled material (10) and stick dust and particles on the surface of the coiled material (10); The adhesive layer peeling structure (2) is located on the side of the dust removal pressure roller (1), aligned with the opening of the adhesive layer (11), and is used to remove the adhesive layer (11) from the dust removal pressure roller (1) Peel off; The conveyor belt structure (3), located on the side of the adhesive layer peeling structure (2) away from the dust removal pressure roller (1), is used to move the peeled adhesive layer (11) to the side away from the dust removal pressure roller (1) delivery; An electrostatic generator (4), in contact with the surface of the conveyor belt structure (3), is used to add static electricity to the surface of the conveyor belt structure (3); and a fixed bracket (5), which is fixedly connected with the glue layer peeling structure (2), the conveyor belt structure (3) and the static electricity generator (4); The adhesive layer peeling structure (2) includes a guide block (21), a scraper head (22) and a spring steel sheet (23), the guide block (21) is fixedly connected with the fixing bracket (5), and the guide The block (21) is arc-shaped, the scraper head (22) is hinged to the guide block (21), and the two ends of the spring steel sheet (23) are respectively connected to the scraper head (22) and the guide block (21) fixed connection; The openings of the adhesive layers (11) on the adjacent two sides are 180° with the dust removal pressure roller (1) as the center of the circle; The targeted dedusting and pressing mechanism for lithium battery pole piece coils also includes a rotary position sensor (8) for collecting the angular position of the opening of the adhesive layer (11). 2. The targeted dedusting and pressing mechanism for lithium battery pole piece coils according to claim 1, characterized in that, the conveyor belt structure (3) includes a conveyor belt, a driving wheel, a driven wheel and a motor (31), and the driving The two ends of the driving wheel and the driven wheel are respectively connected to the fixed brackets (5) bearings on both sides, the two ends of the conveyor belt are respectively sleeved on the driving wheel and the driven wheel, and the output shaft of the motor (31) It is fixedly connected with the driving wheel, and the motor (31) is fixedly connected with the fixed bracket (5). 3. The targeted dust removal and pressing mechanism for lithium battery pole piece coils according to claim 1, characterized in that the targeted dust removal and pressing mechanism for lithium battery pole piece coils also includes a collection box (6), and the The collection box (6) is a hollow structure with an open top, and the collection box (6) is located at the end of the conveyor belt structure (3) away from the adhesive layer peeling structure (2), and is fixedly connected with the fixing bracket (5) . 4. According to any one of claims 1 to 3, the targeted dedusting and pressing belt mechanism for lithium battery pole piece coils is characterized in that the two ends of the dedusting pressing roller (1) are respectively connected with connecting blocks ( 12); the dust removal pressure roller (1) includes an upper dust removal pressure roller and a lower dust removal pressure roller, the upper dust removal pressure roller and the lower dust removal pressure roller are in contact, and the coil (10) is threaded on the upper dust between the pressure roller and the lower dust removal pressure roller. 5. The targeted dust removal and pressing mechanism for lithium battery pole piece coils according to claim 4, characterized in that the targeted dust removal and pressing mechanism for lithium battery pole piece coils also includes a support structure, and the support structure includes The support column (71), the spring (72) and the first step driver (73), the support column (71) is provided with a first sliding groove and a second sliding groove, the connection of the upper dust removal pressure roller The block (12) is located in the first sliding groove, and is fixedly connected with the top wall of the first sliding groove through the spring (72); the fixed end of the first step driver (73) is connected with the second sliding groove The bottom wall is fixedly connected, and its movable end is fixedly connected with the connection block (12) of the lower dust removal pressure roller. 6. The targeted dust removal and pressing mechanism for lithium battery pole piece coils according to claim 5, characterized in that the targeted dust removal and pressing mechanism for lithium battery pole piece coils also includes a controller, and the controller and The first step driver (73) is electrically connected. 7. The targeted dedusting and pressing mechanism for lithium battery pole piece coils according to claim 6, characterized in that a rotational position sensor (8) is provided on the side wall of the dedusting pressing roller (1), and the rotating The position sensor (8) is electrically connected with the controller. 8. The targeted dedusting and pressing mechanism for lithium battery pole piece coils according to claim 6, characterized in that, the fixed bracket (5) is fixedly connected with a second device that pushes the fixed bracket (5) to move in the vertical direction. Two stepping drivers (91), the second stepping driver (91) is fixedly connected with a third stepping driver (92) that pushes the fixed bracket (5) to move along the horizontal direction.

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