CN217035718U - Continuous reciprocating movement folding mechanism and lamination mechanism - Google Patents

Abstract

The utility model discloses a continuous reciprocating movement folding mechanism, which comprises: a lamination table; the belt material conveying mechanism is used for continuously conveying belt materials in a belt shape and enabling the belt materials to be folded back and forth on the laminating table; the folding positioning mechanism is used for controlling the positions of two ends of the belt material to be folded back and forth; the belt material conveying mechanism comprises a folding roller set and a folding driving mechanism; the folding roller group comprises two folding rollers for guiding the belt material; the folding driving mechanism is used for driving the folding roller group and the lamination table to move relatively and enabling the belt material to be folded back and forth on the lamination table. The utility model also discloses a continuous reciprocating movement folding method, a continuous reciprocating movement lamination mechanism and a continuous reciprocating movement lamination method. The continuous reciprocating movement folding mechanism can realize continuous folding and continuous lamination, and can effectively control the precision of folding and lamination.

Description

Continuous reciprocating movement folding mechanism and lamination mechanism

Technical Field

The utility model belongs to the technical field of manufacturing of batteries or capacitors, and particularly relates to a continuous reciprocating movement folding mechanism and a lamination mechanism.

Background

Chinese patent application publication No. CN113555595A discloses a thermal lamination apparatus and a thermal lamination method, and in particular, the specification thereof describes a lamination mechanism. Specifically, the lamination mechanism comprises a material box and an air blowing assembly, an opening is arranged at the upper end of the material box, the main conveying mechanism drives the material belt to vertically enter the material box from the opening of the material box, the air blowing assembly is arranged at one side of the material box, when the end part of the material belt enters the upper end of the material box, the air blowing assembly blows air to the other side of the material box, so that the end part of the material belt is blown to be abutted against the other side of the material box, then the material belt is abutted against the material box to move downwards continuously to realize the positioning of the first unit chip, then the air blowing component stops blowing air, the material belt falls freely and is folded in a Z shape, so that the unit chips are sequentially stacked in the material box, after the unit pieces are stacked to the preset number, the material belt is cut, at the moment, the material box filled with the unit pieces leaves the lower portion of the material belt, and the empty material box moves to the lower portion of the material belt, so that the lamination process is continuously carried out, waiting time is shortened, and production efficiency is improved.

Although the lamination mechanism can meet the lamination requirement of the material belt theoretically, the lamination precision of the lamination mechanism cannot be guaranteed. Only rely on the subassembly of blowing to blow the material area during the lamination and carry out the lamination, blanking position and folding position etc. in material area all can't accurate control, and the position accuracy requirement to the lamination is higher when making the battery, if the lamination error is great, then can lead to the battery product that the production obtained to scrap. If other auxiliary means are adopted to improve the lamination precision after lamination, relative movement is inevitably generated between materials after lamination, which affects the surface performance of the materials after lamination and also reduces the quality of the produced battery products.

Disclosure of Invention

In view of the above, the present invention provides a continuous reciprocating folding mechanism and a lamination mechanism, which can realize continuous folding and continuous lamination, and can effectively control the precision of folding and lamination.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model firstly provides a continuous reciprocating movement folding mechanism, which comprises:

a lamination table;

the belt material conveying mechanism is used for continuously conveying belt materials in a belt shape and enabling the belt materials to be folded back and forth on the laminating table;

the folding positioning mechanism is used for controlling the positions of the two ends of the belt material to be folded back and forth;

the belt material conveying mechanism comprises a folding roller set and a folding driving mechanism; the folding roller group comprises two folding rollers for guiding the belt material; the folding driving mechanism is used for driving the folding roller group and the lamination table to move relatively and enabling the belt material to be folded back and forth on the lamination table.

Furthermore, the folding positioning mechanism comprises positioning rods, positioning pressing needles or positioning pressing blocks which are respectively positioned at two ends of the belt material which is folded back and forth.

Further, the belt material conveying mechanism further comprises a guide roller set, and the guide roller set comprises two guide rollers for guiding the belt material.

Further, still including area material buffer memory mechanism, area material buffer memory mechanism is including the fixed roll that is located both sides, two be equipped with between the fixed roll movable roll and be used for the drive movable roll removes in order to control take tensile tension mechanism of material.

Further, the folding driving mechanism comprises a first movement driving mechanism for driving the folding roller group and the lamination table to move relatively along a first direction parallel to the table top of the lamination table, and a second movement driving mechanism for driving the folding roller group and the lamination table to move relatively along a second direction vertical to the table top of the lamination table.

Further, the second movement driving mechanism includes a roller group movement driving mechanism and a lamination table movement driving mechanism for driving the folding roller group and the lamination table to move in the second direction, respectively.

Further, the second movement drive mechanism is configured to drive the set of folding rollers to move in a second direction.

The utility model also provides a continuous reciprocating lamination mechanism which comprises the continuous reciprocating folding mechanism and a sheet material conveying mechanism, wherein the sheet material conveying mechanism is used for conveying sheet-shaped sheet materials and enabling the sheet materials to be sequentially stacked on the belt material after the belt material is folded each time.

Further, the two sheet material conveying mechanisms are respectively positioned at two ends of the laminating table, which are vertical to the axis of the laminating roller, or at two sides of the laminating table, which are parallel to the axis of the laminating roller; or the sheet material conveying mechanism is arranged as one and is positioned on one side of the lamination table parallel to the axis of the lamination roller.

Further, the sheet material contraposition driving mechanism is used for driving the sheet material conveying mechanism to move along the second direction.

The device further comprises a sheet material pressing mechanism, wherein the sheet material pressing mechanism is used for pressing and fixing the uppermost sheet material on the corresponding belt material.

Further, the sheet material pressing mechanism comprises a sheet material pressing rod, a sheet material pressing needle or a sheet material pressing block which are respectively positioned at two ends of the sheet material.

The utility model has the beneficial effects that:

according to the continuous reciprocating movement folding mechanism, the belt material is continuously conveyed through the belt material conveying mechanism, the folding driving mechanism is utilized to drive the folding roller group and the lamination table to move relatively, when the folding roller group moves to the first folding end relative to the lamination table, the folding positioning mechanism is utilized to compress and fix the belt material positioned at the first end part of reciprocating folding, then the folding roller group is driven to move to the second folding end relative to the lamination table, the folding positioning mechanism is utilized to compress and fix the belt material positioned at the second end part of reciprocating folding again, the belt material can be positioned and folded on the lamination table in a circulating manner, and the positions of the two folded ends are accurately positioned and controlled through the folding positioning mechanism, so that the continuous folding can be realized, and the folding accuracy can be improved; in addition, the length between the first end and the second end of the strip material which is folded back and forth can be controlled by controlling the relative movement distance between the folding roller group and the lamination table, so that the folding requirements of different sizes can be met, the folding device is particularly suitable for the folding requirements of larger length sizes, and the universality is better.

According to the continuous reciprocating lamination mechanism, in the process of folding the belt material by using the continuous reciprocating folding mechanism, the sheet material is conveyed by using the sheet material conveying mechanism, so that the sheet materials are sequentially overlapped on the folded belt material, and a layer of sheet material is arranged between two adjacent layers of the folded belt material, so that the lamination production requirements of different products are met.

Drawings

In order to make the object, technical scheme and beneficial effect of the utility model more clear, the utility model provides the following drawings for explanation:

FIG. 1 is a schematic structural view of an embodiment 1 of a continuously reciprocating folding mechanism of the present invention;

FIG. 2 is detail A of FIG. 1;

FIG. 3 is a schematic view of the folding roller set positioned at the first end and the strip being compressed and secured;

FIG. 4 is a schematic view of the folding roller assembly after increasing the spacing between the table tops of the lamination stations;

FIG. 5 is a schematic view of the folding roller set moving toward the second end;

FIG. 6 is a schematic view of the folding roller set as it moves to the second end;

FIG. 7 is a schematic view of the folding roller set in a state where the distance from the lamination table is reduced to hold the strip in compression;

FIG. 8 is a schematic view of the arrangement after increasing the spacing between the folding roller set and the lamination table deck;

FIG. 9 is a schematic view of the folding roller set moving toward the first end;

FIG. 10 is a schematic view of the folding roller set moving to the first end;

FIG. 11 is a schematic view of the folding roller set in a reduced distance from the lamination station to hold the strip in compression;

FIG. 12 is a schematic structural view of embodiment 2 of the continuous reciprocating lamination mechanism of the present invention;

FIG. 13 is detail A of FIG. 12;

FIG. 14 is detail B of FIG. 12;

FIG. 15 is a schematic view of the structure of the belt with the feeding ends moving in relation to each other;

FIG. 16 is a schematic view of the structure of the belt with the feed ends moving independently of each other;

figure 17 is a view of the lamination roller set in a first end with the second feed end moved to its end position;

FIG. 18 is a view showing the first end with the strip material pressed and secured and the second feed end reaching its distal end position;

figure 19 is a view of the lamination roller set moving toward the second end;

figure 20 is a view of the lamination roller set as it reaches the second end and the first feed end moves to its end position;

FIG. 21 is a state view of the second feeding end with the strip material pressed and fixed and the first feeding end reaching its end position;

FIG. 22 is a view of the lamination roller set moving toward the first end;

figure 23 is a view of the lamination roller set as it is positioned at the first end and the second feed end is moved to its end position;

description of reference numerals:

1-carrying materials; 2-sheet material; 3-a strip; 4-a first pole piece strip; 5-a separator;

10-a lamination table; 11-a lamination roller; 12-positioning a pressing block; 14-a guide roll; 15-a first fixed guide roller; 16-a moving roll; 17-unwinding a first pole piece strip; 18-diaphragm composite roll; 19-a diaphragm unwinding roller; 20-a diaphragm tension mechanism; 21-a pole piece cutting mechanism; 22-an encoder; 23-a feed roll group; 24-a first pole piece strip buffer zone; 25-a heating box; 26-hot rolling the composite roller group;

50-a feeding belt; 51-a feeding end; 51 a-first feeding end; 51 b-a second feed end; 52-a drive member; 53-a tension mechanism; 54-a control member; 55-a guide piece; 56-front conveyor roller; 57-rear delivery rollers; 58-a conveyor belt; 59-a receiving roller; 60-unwinding roller; 61-a cutter mechanism; 62-a set of drive rollers; 63-a support table; 64-an encoder; 65-a fixed roller; 66-a tension roller; 67-sheet locating elements; 68-fixed roll; 69-moving rollers.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

Example 1

As shown in FIG. 1, the continuous reciprocating folding mechanism of the present invention is schematically illustrated. The continuous reciprocating folding mechanism of the embodiment comprises:

a lamination stage 10;

the belt material conveying mechanism is used for continuously conveying the belt material 1 in a belt shape and enabling the belt material 1 to be folded back and forth on the lamination table 10;

and the folding positioning mechanism is used for controlling the positions of the two ends of the belt material 1 which are folded back and forth.

Specifically, the belt material conveying mechanism of the embodiment includes a folding roller group and a folding driving mechanism. The folding roller group of the present embodiment includes two folding rollers 11 for guiding the web 1. The folding drive mechanism of the present embodiment is used to drive the relative movement between the folding roller group and the lamination station 10 and to fold the strip 1 back and forth on the lamination station 10.

Further, the folding positioning mechanism comprises a positioning rod, a positioning pressing pin or a positioning pressing block which are respectively positioned at the two ends of the belt material 1 folded back and forth. The folding positioning mechanism of the embodiment comprises positioning press blocks 12 respectively positioned at two end positions of the belt material 1 which is folded back and forth, and the positioning press blocks 12 are arranged at the end positions of the belt material 1 which is folded, so that the belt material 1 can be positioned and folded, and particularly, the positioning press blocks 12 are pressed on the belt material 1 positioned at the uppermost layer. Of course, the folding positioning mechanism can also achieve the same technical purpose by adopting a positioning rod and a positioning needle pressing mode, and the description is not repeated.

Further, area material conveying mechanism still includes the guide roller group, and the guide roller group leads area material 1 through setting up two guide rollers 14 including two guide rollers 14 that are used for direction area material 1, drives area material 1 reciprocating motion's in-process at folding roller group, all can realize the direction purpose to area material 1. The continuous reciprocating folding mechanism of this embodiment also includes a strip buffering mechanism, and the strip buffering mechanism includes the fixed rollers that are located both sides, is equipped with between the fixed rollers of both sides and moves 16 and is used for driving the tension mechanism that moves in order to control strip 1 tension with the movable roller 16. The fixed roller on one side of this embodiment is the first fixed roller 15, and the fixed roller on the other side is realized by using the guide roller 14, that is, the guide roller 14 plays a role of a fixed roller in the material-carrying buffer mechanism. The tension mechanism is arranged to drive the movable roller 16 to move, so that the tension of the belt material 1 is kept stable, the belt material 1 with a certain length can be stored between the fixed rollers on two sides, the requirement for laminating the belt material 1 is met, and meanwhile, a buffering effect is achieved. Specifically, the tension mechanism can be realized by adopting various existing tension stabilizing mechanisms, and the description is omitted.

Further, the folding drive mechanism includes a first movement drive mechanism for driving relative movement between the folding roller group and the lamination station 10 in a first direction parallel to the deck of the lamination station 10 and a second movement drive mechanism for driving relative movement between the folding roller group and the lamination station 10 in a second direction perpendicular to the deck of the lamination station. The first direction described in this embodiment is perpendicular to the axis of the folding roller 11. The first moving driving mechanism and the second moving driving mechanism can be realized by adopting various existing modes, such as a threaded screw rod mechanism, a gear rack mechanism and the like, and description is not repeated.

Further, a first movement drive mechanism drives the folding roller group and/or the lamination table to move in a first direction. That is, the first movement driving mechanism may drive the folding roller group to move in the first direction, may drive the lamination table to move in the first direction, and may drive the folding roller group and the lamination table to move in the first direction at the same time, as long as the folding roller group can move back and forth between the first end and the second end of the reciprocating folding of the web 1 with respect to the lamination table 10.

Further, the second movement driving mechanism includes a roller group movement driving mechanism and a lamination table movement driving mechanism for driving the folding roller group and the lamination table to move in the second direction, respectively, that is, the roller group movement driving mechanism can separately drive the folding roller group to move in the second direction relative to the lamination table 10, so that the distance between the belt material 1 and the top belt material 1 which is already folded during the folding process can be adjusted, and the interference between the folding roller group and the top belt material 1 which is already folded can be avoided. The lamination table 10 can be independently controlled to move along the second direction through the lamination table moving driving mechanism, so that when the lamination of the belt material 1 and the sheet material 2 is completed, the lamination table 10 can be controlled to move to enable the distance between the lamination table 10 and the sheet material conveying mechanism 17 in the direction perpendicular to the table surface of the lamination table 10, the distance of each stepping movement of the lamination table 10 is equal to n times of the thickness of the belt material, and n is larger than or equal to 1. Specifically, the roller group movement driving mechanism and the lamination table movement driving mechanism can be realized by adopting various existing driving mechanisms, such as a threaded screw rod mechanism, a gear and rack mechanism and the like, and the description is not repeated.

According to the continuous reciprocating movement folding mechanism, the belt material is continuously conveyed through the belt material conveying mechanism, the folding driving mechanism is utilized to drive the folding roller group and the lamination table to move relatively, when the folding roller group moves to the first folded end relative to the lamination table, the folding positioning mechanism is utilized to compress and fix the belt material positioned at the end part of the first end folded back and forth, then the folding roller group is driven to move to the second folded end relative to the lamination table, the folding positioning mechanism is utilized again to compress and fix the belt material positioned at the end part of the second end folded back and forth, the belt material can be positioned and folded on the lamination table in a circulating manner, and the positions of the two folded ends are accurately positioned and controlled through the folding positioning mechanism, so that the continuous folding can be realized, and the folding accuracy can be improved; in addition, the distance of relative movement of the folding roller group and the lamination table is controlled, so that the length between the first end and the second end of the strip material which is folded back and forth can be controlled, the folding requirements of different sizes can be met, the folding device is particularly suitable for the folding requirements of large length sizes, and the universality is better.

Specifically, when a battery or a capacitor is produced, the first electrode plate and the second electrode plate can be respectively compounded in a staggered mode on two sides of the diaphragm, so that a belt material is formed, after the belt material is folded back and forth on the lamination table, a layer of diaphragm is arranged between the adjacent first electrode plate and the second electrode plate, a battery or capacitor structure is formed, and production of the battery or the capacitor can be met. Certainly, the first electrode plate and the second electrode plate can be respectively compounded on two sides of the solid electrolyte in a staggered mode, so that after the formed strip is folded back and forth on the lamination table, a layer of solid electrolyte is arranged between the adjacent first electrode plate and the second electrode plate, a solid battery or solid capacitor structure is formed, and the production of the solid battery or the solid capacitor can be met.

The following describes in detail a specific embodiment of the continuous reciprocating folding method of the present invention with reference to the above-described continuous reciprocating folding mechanism.

The continuous reciprocating folding method of the embodiment comprises the following steps:

1) the folding roller group is positioned at the end position of the first end of the strip material which is folded back and forth, and the strip material 1 at the first end is pressed and fixed by the folding positioning mechanism, as shown in fig. 3. After the belt material at the first end is pressed and fixed by the folding positioning mechanism, the folding roller group and the lamination table are driven to move relatively along the second direction for a set distance, and the distance between the folding roller group and the table top of the lamination table is increased, as shown in fig. 4.

2) The folding roller group is moved relative to the lamination table 10 by a folding driving mechanism to move the folding roller group relative to the lamination table 10 to the end position of the second end of the strip material 1 to be folded back and forth, and the strip material 1 at the second end is pressed and fixed by a folding positioning mechanism, as shown in fig. 5 to 6. After the folding roller group moves to the end position of the second end of the strip material to be folded back and forth relative to the lamination table, the folding roller group and the lamination table are driven to move relatively along the second direction for a set distance, the distance between the folding roller group and the table top of the lamination table is reduced, the strip material positioned on the uppermost layer is attached to the strip material positioned below the folding roller group, and then the strip material at the second end is pressed and fixed by the folding positioning mechanism, as shown in fig. 7. After the second end of the strip material is pressed and fixed by the folding positioning mechanism, the folding roller group and the lamination table are driven to move relatively along the second direction for a set distance, and the distance between the folding roller group and the table top of the lamination table is increased, as shown in fig. 8.

3) The folding roller group is driven to move relative to the lamination table 10 by a folding driving mechanism, the folding roller group is moved relative to the lamination table 10 to the end position of the first end of the strip to be folded back and forth, and the strip at the first end is tightly pressed and fixed by a folding positioning mechanism, as shown in fig. 9-10. After the folding roller group moves to the end position of the first end of the belt material which is folded back and forth relative to the lamination table, the folding roller group and the lamination table are driven to move relatively along the second direction for a set distance, the distance between the folding roller group and the table top of the lamination table is reduced, the belt material positioned on the uppermost layer is attached to the belt material positioned below the folding roller group, and then the folding positioning mechanism is used for pressing and fixing the belt material at the first end, as shown in fig. 11. After the belt material at the first end is pressed and fixed by the folding positioning mechanism, the folding roller group and the lamination table are driven to move relatively along the second direction for a set distance, and the distance between the folding roller group and the table top of the lamination table is increased, as shown in fig. 4.

4) And (5) circulating the step 2) to the step 3) until the folding is finished.

In step 2) and/or step 3), after the folding roller group moves for a set number of times between the first end and the second end of the strip material in the back-and-forth folding process, the lamination table is driven to move towards the side back to which the folding roller group is located along the second direction for a distance s, wherein s is n x h, h is the thickness of the strip material, and n is more than or equal to 1.

Example 2

Fig. 12 is a schematic structural view of embodiment 2 of the continuous reciprocating lamination mechanism of the present invention. The continuous reciprocating lamination mechanism of the embodiment comprises a continuous reciprocating folding mechanism and a sheet material conveying mechanism, wherein the sheet material conveying mechanism is used for conveying sheet-shaped sheet materials and enabling the sheet materials to be sequentially stacked on the belt material after the belt material is folded each time.

Further, two sheet material conveying mechanisms 17 are arranged and are respectively positioned at two ends of the laminating table 10, which are vertical to the axis of the laminating roller 11, or at two sides of the laminating table 10, which are parallel to the axis of the laminating roller 11; or the sheet conveying mechanism 17 is provided as one and located on one side of the lamination table 10 in parallel with the axis of the lamination roller 11. Specifically, if there are two types of sheet materials, for example, when the sheet materials are the first and second sheet materials, the sheet material conveying mechanism 17 needs to be two; if the sheet material is only one, for example, when the sheet material is the first or second pole piece, the sheet material conveying mechanism 17 can be only one; of course, if the sheet stock is only one, for example, if the sheet stock is the first sheet stock or the second sheet stock, the sheet stock conveying mechanism 17 may be two. The two sheet conveying mechanisms 17 of this embodiment are provided at both ends of the laminating table 10 perpendicular to the axis of the laminating roller 11, and the two sheet conveying mechanisms 17 sequentially laminate the sheet-like sheets 2 on the uppermost tape member 1. Specifically, the sheet material conveying mechanism 17 may be implemented by using various existing sheet material conveying mechanisms 17, such as a conveying belt mechanism, a conveying roller mechanism, a manipulator device, and the like, which will not be described in detail.

The continuous reciprocating lamination mechanism of the embodiment also comprises a sheet material contraposition driving mechanism for driving the sheet material conveying mechanism to move along the second direction. Namely, the distance between the sheet conveying mechanism 17 and the lamination table 10 can be adjusted in a mode of driving the sheet conveying mechanism 17 to move relative to the lamination table 10, so as to meet the lamination requirement of the sheet 2.

Further, the continuous reciprocating lamination mechanism of the embodiment further comprises a sheet material pressing mechanism, wherein the sheet material pressing mechanism is used for pressing and fixing the uppermost sheet material on the corresponding belt material, so that displacement and dislocation of the sheet materials 2 in the process of folding the belt material 1 back and forth are prevented. The sheet material pressing mechanism comprises a sheet material pressing rod, a sheet material pressing needle or a sheet material pressing block which are respectively positioned at two ends of the sheet material. The sheet material pressing mechanism of the present embodiment includes sheet material pressing blocks 13 respectively located at both ends of the sheet material.

Specifically, in some embodiments, the strip 1 is a diaphragm or a solid electrolyte, and the sheets 2 conveyed by the feeding end 51 at two ends of the lamination table 10 are a first pole piece and a second pole piece, respectively, which are laminated on two sides of the diaphragm or the solid electrolyte, respectively, so as to form a battery or a capacitor structure. In other embodiments, tape 1 comprises a first strip of pole pieces, and web 2 is a second pole piece; the two sides of the first pole piece strip are respectively compounded with a diaphragm or a solid electrolyte layer; or, the two sides of the second pole piece are respectively compounded with a diaphragm or a solid electrolyte layer; or, a diaphragm or a solid electrolyte layer is compounded on one side of the first pole piece strip and one side of the second pole piece respectively. Therefore, after the first pole piece strip and the second pole piece are laminated, a diaphragm or a solid electrolyte layer is arranged between the adjacent first pole piece strip and the second pole piece, and a structure of a battery or a capacitor can be formed. The belt material 1 of the present embodiment includes a first pole piece belt material 4, and two sides of the first pole piece belt material 4 are respectively compounded with a diaphragm 5. Namely, the two sides of the first pole piece strip 4 are respectively compounded with the diaphragms 5 to form the strip 1, the strip feeding mechanism further comprises a first pole piece strip unwinding roller 17 for continuously unwinding the first pole piece strip 4 and a diaphragm compounding mechanism for compounding the diaphragms 5 on the two sides of the first pole piece strip 4, the diaphragm compounding mechanism comprises a diaphragm compounding roller 18 and a diaphragm unwinding roller 19, and in some embodiments, a diaphragm tensioning mechanism 20 is arranged between the diaphragm compounding roller 18 and the diaphragm unwinding roller 19.

Specifically, for some first pole piece tapes with excellent folding performance, the first pole piece tape 4 can be folded back and forth directly on the laminating table 10 after the separator 5 is respectively compounded on two sides of the first pole piece tape. For some first pole piece strips 4 with poor folding performance, particularly the first pole piece strips 4 which can affect the product quality of the finally formed battery or capacitor after being folded, the first pole piece strips 4 need to be firstly sliced, and then the strips 1 are formed after the membrane 5 is compounded. At this moment, a pole piece cutting mechanism 21 for cutting off the first pole piece strip 4 is arranged between the diaphragm composite roller 18 and the first pole piece strip unwinding roller 17, the length of the first pole piece sheet cut by the pole piece cutting mechanism 21 is equal to the distance between the two end positions of the strip material 1 which are folded back and forth, so after the first pole piece strip 4 is cut, the length of the strip material 1 which is folded back and forth is equal to the length of the first pole piece sheet, and the position of the strip material 1 which is folded back and forth can be controlled to be just positioned between the two first pole piece sheets, so that continuous folding is realized by using the flexible foldable diaphragm 5, and the performance cannot be influenced.

Preferably, in order to accurately control the cut length of the first pole piece sheet, an encoder 22 for measuring the cut length of the first pole piece strip 4 is provided between the pole piece cutting mechanism 21 and the first pole piece strip unwinding roller 17. In order to drive the first pole piece strip 4 to continuously feed, a feeding roller group 23 for driving the pole piece to feed is arranged between the encoder 22 and the pole piece cutting mechanism 21. In order to enable the first pole piece strip unwinding roller 17 to continuously prevent the first pole piece strip 4 from being wound according to the set rotating speed, a first pole piece strip buffer area 24 is arranged between the encoder 22 and the first pole piece strip unwinding roller 17, and the first pole piece strip buffer area 18 comprises a fixed roller, a movable roller and the like, which are not described in detail again.

Further, a hot-pressing composite mechanism is arranged between the diaphragm composite roller 18 and the strip folding mechanism, so that the composite performance between the diaphragm 5 and the first pole piece strip 4 is improved. The hot press compounding mechanism of the present embodiment includes a heating box 25 for heating the strip 1 and a hot press compounding roller group 26 for hot rolling the strip 1.

The sheet material feeding mechanism of the embodiment comprises a feeding belt 50, a feeding driving mechanism, a feeding control mechanism and a sheet material positioning mechanism. At least one end of the feed belt 50 of the present embodiment is a feed end 51. The feed drive mechanism of the present embodiment is used to drive the feed end 51 to reciprocate between its start and end positions.

Specifically, as shown in fig. 12, when the feeding end 51 is provided only at one end of the feeding belt 50, the sheet feeding mechanisms are provided at the opposite ends of the lamination stage 10, respectively, thereby satisfying the technical object of laminating the sheets 2 from the both ends of the lamination area to the belt material 1 folded back and forth, respectively. In particular, when the feed end 51 is in its starting position, the feed end 51 is located outside the lamination zone and close to one of the ends of the lamination zone; when the feeding end 51 is located at its end position, the feeding end 51 is located in the lamination area and near the other end of the lamination area for the technical purpose of feeding the sheet 2 from outside the lamination area into the lamination area. The feeding control mechanism of the present embodiment is configured to move the sheet 2 in synchronization with the feeding belt 50 during the movement of the feeding end 51 from its start position to its end position, and to disengage the sheet 2 from the feeding belt 50 during the movement of the feeding end 51 from its end position to its start position. The sheet positioning mechanism of the present embodiment is used to position the sheet 2 in a set lamination area.

As shown in fig. 15 and 16, when both ends of the feeding belt 50 are set as the feeding ends 51, the starting positions of the two feeding ends 51 are located at the opposite ends of the laminating area, respectively, i.e., only one sheet feeding mechanism is set at this time, and the technical object of laminating the sheets 2 from both ends of the laminating area to the belt material 1 folded back and forth, respectively, can be satisfied. The two feeding ends 51 are respectively arranged at the two ends of the lamination table 10: first, as shown in fig. 15, there is a linkage relationship between the two feeding ends 51, that is, when one of the feeding ends 51 is located at its initial position, the other feeding end 51 is located at its terminal position; when one of the feeding ends 51 moves from its starting position to its ending position, the other feeding end 51 moves from its ending position to its starting position; when one of the feeding ends 51 moves from its end position to its start position, the other feeding end 51 moves from its start position to its end position. And the second method comprises the following steps: as shown in fig. 16, a buffer zone is provided on the feeding belt 50, a fixed roller 68 and a movable roller 69 are provided in the buffer zone, the tension of the feeding belt 50 is controlled by the movable roller 69, that is, a tension mechanism 53 is formed in the buffer zone; due to the existence of the buffer area, when the length of the feeding belt 50 in the buffer area is long enough, the feeding ends 51 at the two ends of the feeding belt 50 can be respectively controlled to move, that is, no linkage relationship exists between the feeding ends 51 respectively arranged at the two ends of the feeding belt 50, that is, the feeding ends 51 respectively arranged at the two ends of the feeding belt 50 can be respectively and independently controlled, and the control mode of each feeding end 51 is equivalent to that when the feeding end 51 is only arranged at one end of the feeding belt 50 as shown in fig. 1, and the description is omitted.

Further, the feeding driving mechanism includes driving members 52, the driving members 52 are disposed in one-to-one correspondence with the feeding ends 51, the driving members 52 are disposed below the corresponding feeding ends 51, and the feeding ends 51 move synchronously with the corresponding driving members 52, and the feeding ends 51 and the corresponding driving members 52 of this embodiment are fixedly connected to each other, so that synchronous movement can be achieved. Specifically, the feeding belt 50 is further provided with a tension mechanism 53, so that the feeding belt 50 can maintain sufficient tension in the process of moving the feeding end 51 at the initial position and the end position.

Further, the feeding control mechanism includes control members 54, the control members 54 are disposed in one-to-one correspondence with the driving members 52 and move synchronously with the driving members 52, and the control members 54 are disposed above the corresponding feeding ends 51. The control member 54 functions to move the sheet 2 in synchronization with the belt 50 during the movement of the feeding end 51 from its starting position to its end position, and to be disengaged from the belt 50 during the movement of the feeding end 51 from its end position to its starting position. To accomplish this technical objective, control member 54 can be implemented in a variety of ways. The first mode is as follows: the control member 54 is provided with a gap control mechanism for adjusting a gap between the control member 54 and the driving member 52. By adjusting the gap between the control member 54 and the driving member 52, the gap between the control member 54 and the driving member 52 can be reduced to apply an appropriate pressure to the sheet 2 to move synchronously with the feeding belt 50 during the movement of the feeding end 51 from the start position to the end position; during the movement of the feeding end 51 from its end position to its start position, the gap between the control member 54 and the driving member 52 is increased, i.e., no pressure is applied to the sheet 2, so that the sheet 2 can be separated from the feeding belt 50. The second mode is as follows: the control member 54 is a control roller which can rotate only in one direction and enables the tangential speed of the point closest to the feeding belt 50 to point to the tail end position of the corresponding feeding end 51 when rotating; in this way, when the feeding end 51 moves from its initial position to its final position, the control roller is subjected to a frictional force applied by the sheet 2 toward the side of the initial position of the corresponding feeding end 51, and the frictional force applies a torque to the control roller opposite to the rotational direction of the control roller, so that the control roller does not rotate under the frictional force, that is, the sheet 2 does not slide on the feeding belt 50, and the sheet 2 and the feeding belt 50 move synchronously; when the sheet 2 is detached from the belt 50 while the feeding end 51 is moving from its end position to its start position, a frictional force is applied to the control roller toward the side of the end position of the corresponding feeding end 51, and the frictional force applies a torque to the control roller in the same direction as the control roller is rotatable, so that the control roller is rotated by the frictional force to detach the sheet 2 from the belt 50. Of course, there are various ways to realize that the control roller rotates only in one direction, for example, a motor is used to control the steering of the control roller, and a ratchet wheel or the like may be provided on the rotating shaft of the control roller, which will not be described in detail. In some embodiments, when control member 54 is a control roller, a gap control mechanism may also be provided on control member 54 at the same time. Of course, the clearance control mechanism can be realized by adopting an electric cylinder, a threaded screw rod mechanism and the like, and the description is not repeated.

Further, in some embodiments, a guide piece 55 for guiding the sheet 2 when the sheet 2 is detached from the feeding belt 50 is provided below the feeding end 51, the guide piece 55 moves in synchronization with the driving member 52, and by providing the guide piece 55, the sheet 2 is prevented from being excessively bent and damaged in the process of detaching from the feeding belt 50.

Further, in some embodiments, the feed belt 50 is provided with rollers or rolling balls for rolling engagement with the web 2, so that friction during the separation of the web 2 from the feed belt 50 can be reduced to avoid damage to the surface of the web 2.

Further, the sheet material feeding mechanism of the present embodiment further includes a sheet material conveying mechanism for conveying the sheet material 2 to the feeding end 51, and the sheet material conveying mechanisms are provided in one-to-one correspondence with the feeding end 51. Specifically, the sheet conveying mechanism of the present embodiment includes a front conveying roller 56 and a rear conveying roller 57 respectively located at the front and rear ends, and a conveying belt 58 is provided between the front conveying roller 56 and the rear conveying roller 57; the feed belt 21 is provided with a receiving roller 59, and the receiving roller 59 is disposed near the front feed roller 56. Of course, the sheet conveying mechanism further includes a sheet conveying motor (not shown) for driving the front conveying roller 56 or the rear conveying roller 57 to rotate, and the conveying belt 58 is moved to convey the sheet 2 to the feeding end 51.

Further, the sheet material feeding mechanism of the present embodiment further includes a sheet material slicing mechanism including an unwinding roller 60 for continuously unwinding the sheet material, a cutter mechanism 61 for cutting the sheet material to form the sheet material, and a drive roller group 62 for driving the sheet material 3 to the cutter mechanism 61, the cutter mechanism 61 being located between the rear conveying roller 57 and the drive roller group 62. By providing the sheet material slicing mechanism, the continuous strip material 3 can be cut into the sheet materials 2. Preferably, support tables 63 are provided between the cutter mechanism 61 and the rear feed roller 57 and between the cutter mechanism 61 and the drive roller group 62, respectively, to prevent the end portion of the strip 3 from being inclined downward and failing to smoothly enter the cutter mechanism 61 and the rear feed roller 57. Specifically, the tape 3 of the present embodiment is a second pole piece.

Preferably, in some embodiments, an encoder 64 for measuring the length is provided between the driving roller group 62 and the unwinding roller 60, thereby ensuring the dimensional accuracy of each sheet 2.

Preferably, in some embodiments, a strip buffer for buffering the strip 3 is provided between the encoder 64 and the unwind roller 60. The tape buffer area of the present embodiment includes the fixed roller 65 and the tension roller 66, so that the unwinding roller 60 can be continuously unwound at a set rotation speed without being affected by the intermittent feeding of the sheet material 2.

Further, the sheet positioning mechanism of the present embodiment includes a sheet positioning member 67, and the sheet positioning member 67 is provided near an end position corresponding to the feeding end 51. The sheet positioning member 67 may be a sheet pressing lever, a sheet pressing pin, a sheet pressing block, or the like, and the sheet positioning member 67 of the present embodiment uses a sheet pressing block to press and fix the end portion of the sheet 2 to the already folded belt material 1 in the lamination area when the feeding end 51 moves to the end position thereof, to realize lamination positioning of the sheet 2, and to detach the sheet 2 from the feeding belt 50 in the process of driving the feeding end 51 to move to the start position thereof.

The specific implementation of the continuous reciprocating folding mechanism of this embodiment is the same as that of embodiment 1, and will not be described in detail.

The following describes in detail a specific embodiment of the continuously reciprocating lamination method of the present invention in conjunction with the above-described continuously reciprocating lamination mechanism.

The continuous reciprocating lamination moving method comprises the following steps:

1) the folding roller group is positioned at the end position of the first end of the web 1 to be folded back and forth, and the web 1 at the first end is pressed and fixed by the folding positioning mechanism, as shown in fig. 17. Specifically, after the first end of the strip is pressed and fixed by the folding positioning mechanism, the folding roller set and the lamination table 10 are driven to move relatively along the second direction for a set distance, so as to increase the distance between the folding roller set and the table top of the lamination table 10, as shown in fig. 18.

2) Sheet-like sheets 2 are stacked on the belt material 1 by the sheet conveying mechanism 17, as shown in fig. 18. Specifically, after the sheet 2 is stacked on the belt material 1, the sheet is pressed and fixed by a sheet pressing mechanism.

When the belt material 1 is a diaphragm, the first pole piece or the second pole piece which is in a sheet shape can be stacked on the belt material 1;

when the belt material 1 is a first pole piece, the second pole piece which is in a sheet shape is overlapped on the first pole piece;

when the strip 1 is a second pole piece, the first pole piece is stacked on the first pole piece.

3) The folding roller group is moved relative to the lamination station 10 by a folding driving mechanism to the end position of the second end of the strip material 1 to be folded back and forth, and the strip material 1 at the second end is pressed and fixed by a folding positioning mechanism, as shown in fig. 19-21.

Specifically, after the folding roller group is moved to the end position of the second end of the web 1 to be folded back and forth with respect to the laminating table 10, the folding roller group and the laminating table 10 are driven to move relatively in the second direction by a set distance, the distance between the folding roller group and the table surface of the laminating table 10 is reduced, the web 1 positioned on the uppermost side is brought into contact with the sheet 2 positioned therebelow, and then the web 1 on the second end is pressed and fixed by the folding positioning mechanism, as shown in fig. 19 to 20. After the second end of the strip material 1 is pressed and fixed by the folding positioning mechanism, the folding roller group and the lamination table 10 are driven to move relatively along the second direction for a set distance, and the distance between the folding roller group and the table top of the lamination table 10 is increased, as shown in fig. 21.

4) Sheet-like sheets 2 are stacked on the belt material 1 by a sheet conveying mechanism 17. After the sheet 2 is stacked on the belt material 1, the sheet pressing mechanism presses and fixes the sheet 2 as shown in fig. 21.

When the strip 1 is a diaphragm, if the first pole piece is stacked on the diaphragm in the step 2), the second pole piece is stacked on the diaphragm in the step 4); if the second pole piece is stacked on the diaphragm in the step 2), the first pole piece is stacked on the diaphragm in the step 4);

when the belt material is a first pole piece, the second pole piece which is in a sheet shape is stacked on the first pole piece;

when the strip material is a second pole piece, the first pole piece which is in a sheet shape is overlapped on the first pole piece.

5) The folding drive mechanism is used to drive the relative movement between the folding roller group and the lamination table, so that the folding roller group moves to the end position of the first end of the strip material for reciprocating folding relative to the lamination table, and the folding positioning mechanism is used to tightly press and fix the strip material at the first end, as shown in figures 22-23.

After the folding roller group moves to the end position of the first end of the web 1 to be folded back and forth relative to the lamination table 10, the folding roller group and the lamination table 10 are driven to move relatively in the second direction by a set distance, the distance between the folding roller group and the table top of the lamination table 10 is reduced, the web 1 positioned on the uppermost layer is attached to the sheet 2 positioned therebelow, and then the web 1 on the first end is pressed and fixed by the folding positioning mechanism, as shown in fig. 23. After the first end of the strip material 1 is pressed and fixed by the folding positioning mechanism, the folding roller group and the lamination table 10 are driven to move relatively along the second direction for a set distance, and the distance between the folding roller group and the table top of the lamination table 10 is increased, as shown in fig. 17.

6) And (6) circulating the steps 2) to 5) until lamination is completed.

In step 3) and/or step 5), after the folding roller group moves for a set N times between the first end and the second end of the strip material in the back-and-forth folding process, the lamination table is driven to move towards the side where the back-to-back folding roller group is located along the second direction for a distance S, wherein S is N H, H is the sum of the thicknesses of one layer of strip material and one layer of sheet material, and N is more than or equal to 1.

Specifically, the method for stacking sheet-shaped sheets on the belt by using the sheet conveying mechanism comprises the following steps:

(1) moving the feed end 51 to its starting position; at the moment, sheet material lamination feeding mechanisms are respectively arranged at two ends of the lamination table 10, the sheet material lamination feeding mechanism positioned at the left side is a first sheet material lamination feeding mechanism, and the sheet material lamination feeding mechanism positioned at the right side is a second sheet material lamination feeding mechanism; the method for feeding the sheet material lamination of the present embodiment will be described in detail with reference to the operation of the first sheet material lamination feeding mechanism. Specifically, as shown in fig. 17, the feeding end 51 of the first sheet stack feeding mechanism is located at its initial position.

(2) After the sheet materials 2 are fed to the feeding end, the feeding end 51 is driven by the feeding driving mechanism to move towards the tail end position, and the sheet materials 2 move synchronously along with the feeding belt 50 under the action of the feeding control mechanism. As shown in fig. 18-20, the feed end 51 of the first sheet stack feed mechanism moves from its starting position toward its end position.

(3) After the feeding end 51 reaches its end position, the end of the sheet 2 is positioned in the lamination area by the sheet positioning mechanism. As shown in fig. 20, the feeding end 51 of the first sheet stacking mechanism reaches its end position, and the end of the sheet 2 is positioned and pressed against the stacking area by the sheet positioning member 67.

(4) The feed end 51 is driven to move toward its initial position, and the sheet 2 is gradually separated from the feed belt 50 by the feed mechanism until it completely falls into the lamination area. As shown in fig. 21 to 23, the feeding end 51 of the first sheet stack feeding mechanism is moved from its end position toward its start position, during which the sheet 2 is gradually disengaged from the feeding belt 50.

(5) The movement of the feeding end 51 towards its starting position is continued until the feeding end 51 returns to its starting position. As shown in fig. 23, the feed end 51 of the first sheet stack feed mechanism reaches its starting position.

Further, in order to enable the sheet positioning mechanism to position the end of the sheet 2 in the lamination area, the following two ways may be adopted:

the first mode is as follows: in the step (2), when the sheet 2 is fed to the feeding end 51, the end part of the sheet 2 is exposed out of the feeding end 51; and 3) positioning the end part of the sheet material exposed out of the feeding end in the lamination area by using a sheet material positioning mechanism.

The second mode is as follows: in the step (3), after the feeding end 51 reaches the end position thereof, the sheet 2 is driven to move by the feeding control mechanism so that the end of the sheet 2 is exposed outside the feeding end, and then the end of the sheet exposed outside the feeding end is positioned in the lamination area by the sheet positioning mechanism.

That is, both of the modes can expose the end portion of the sheet 2 outside the feeding end 51, so that the end portion of the sheet exposed outside the feeding end can be positioned in the laminating area by the sheet positioning mechanism, that is, the end portion of the sheet exposed outside the feeding end can be positioned in the laminating area by pressing by the sheet positioning member 37.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitutions or changes made by the person skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the utility model is subject to the claims.

Claims (12)

1. A continuous reciprocating movement folding mechanism which is characterized in that: the method comprises the following steps:

a lamination table;

the belt material conveying mechanism is used for continuously conveying belt materials in a belt shape and enabling the belt materials to be folded back and forth on the laminating table;

the folding positioning mechanism is used for controlling the positions of two ends of the belt material to be folded back and forth;

the belt material conveying mechanism comprises a folding roller set and a folding driving mechanism; the folding roller group comprises two folding rollers for guiding the belt material; the folding driving mechanism is used for driving the folding roller group and the lamination table to move relatively and enabling the belt material to be folded back and forth on the lamination table.

2. The continuous reciprocating folding mechanism of claim 1, wherein: the folding positioning mechanism comprises positioning rods, positioning pressing needles or positioning pressing blocks which are respectively positioned at two ends of the band material which is folded back and forth.

3. The continuous reciprocating folding mechanism of claim 1, wherein: the belt material conveying mechanism further comprises a guide roller set, and the guide roller set comprises two guide rollers for guiding the belt material.

4. The continuous reciprocating folding mechanism of claim 1, wherein: still including area material buffer memory mechanism, area material buffer memory mechanism is including the fixed roll that is located both sides, two be equipped with between the fixed roll and move the roller and be used for the drive move in order to control take tensile tension mechanism of material.

5. The continuous reciprocating folding mechanism of any of claims 1 to 4, wherein: the folding driving mechanism comprises a first movement driving mechanism used for driving the folding roller group and the lamination table to move relatively along a first direction parallel to the table top of the lamination table and a second movement driving mechanism used for driving the folding roller group and the lamination table to move relatively along a second direction vertical to the table top of the lamination table.

6. The continuous reciprocating folding mechanism of claim 5, wherein: the second movement driving mechanism comprises a roller group movement driving mechanism and a lamination table movement driving mechanism which are used for respectively driving the folding roller group and the lamination table to move along the second direction.

7. The continuous reciprocating folding mechanism of claim 5, wherein: the second movement driving mechanism is used for driving the folding roller group to move along a second direction.

8. A continuous reciprocating lamination mechanism is characterized in that: comprising a continuously reciprocating folding mechanism according to any one of claims 1 to 7 and a sheet material conveying mechanism for conveying sheet materials in a sheet form and stacking the sheet materials on the webbing after each folding of the webbing.

9. The continuous reciprocal moving lamination mechanism of claim 8, wherein: the two sheet material conveying mechanisms are respectively positioned at two ends of the lamination table perpendicular to the axis of the lamination roller or at two sides of the lamination table parallel to the axis of the lamination roller; or the sheet material conveying mechanism is arranged at one side of the lamination table parallel to the axis of the lamination roller.

10. The continuous reciprocal moving lamination mechanism of claim 8, wherein: the sheet material aligning and driving mechanism is used for driving the sheet material conveying mechanism to move along the second direction.

11. The continuous reciprocal moving lamination mechanism of claim 8, wherein: the device also comprises a sheet material pressing mechanism, wherein the sheet material pressing mechanism is used for pressing and fixing the uppermost sheet material on the corresponding belt material.

12. The continuous reciprocal moving lamination mechanism of claim 11, wherein: the sheet material pressing mechanism comprises a sheet material pressing rod, a sheet material pressing needle or a sheet material pressing block which are respectively positioned at two ends of the sheet material.

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