Continuous reciprocating folding mechanism, folding method, stacking mechanism and stacking method

Abstract

The application discloses a continuous reciprocating folding mechanism, which comprises a laminating table, a reciprocating folding mechanism and a folding positioning mechanism; the reciprocating folding mechanism comprises a folding guide mechanism and a folding driving mechanism; the folding guide mechanism comprises a swing arm, the two ends of the swing arm are a moving end and a swinging end respectively, the moving end of the swing arm is rotatable relative to a rotating shaft, and the swinging end is provided with a first guide roller set for guiding a strip material; the folding driving mechanism comprises a driving assembly for driving the moving end of the swing arm to move along a preset track and a swinging assembly for driving or guiding the swing arm to rotate around the rotating shaft; the preset track comprises at least one vertical track which is perpendicular to the laminating table; the first guide roller set reciprocally moves relative to the laminating table under the combined action of linear motion of the moving end of the swing arm in a direction perpendicular to the laminating table and rotational motion of the swing arm around the rotating shaft, so as to fold the strip material back and forth on the laminating table. The application further discloses a continuous reciprocating folding method, a laminating mechanism and a laminating method.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery or capacitor manufacturing, and specifically relates to a continuous reciprocating folding mechanism, a folding method, a lamination mechanism and a lamination method. Background Art

[0002] Chinese patent application publication number CN113555595A discloses a thermal composite lamination device and method. Specifically, the specification describes a lamination mechanism. Specifically, the lamination mechanism includes a magazine and a blow assembly. The magazine has an opening at its top end, and a main conveying mechanism drives a strip of material vertically into the magazine through the opening. The blow assembly is located on one side of the magazine. When the end of the strip of material enters the top end of the magazine, the blow assembly blows air toward the other side of the magazine, pushing the end of the strip of material into contact with the other side of the magazine. The strip of material then continues to move downward against the magazine, positioning the first unit sheet. The blow assembly then stops blowing, allowing the strip of material to fall freely and fold in a Z-shape, stacking the units in the magazine in sequence. When a predetermined number of units are stacked, the strip of material is cut. At this point, the magazine filled with units of material leaves the bottom of the strip of material, and the empty magazine moves back to the bottom of the strip of material. This ensures a continuous lamination process, reduces waiting time, and improves production efficiency.

[0003] Although this lamination mechanism can theoretically meet the lamination requirements of the material strip, its lamination accuracy cannot be guaranteed. During lamination, the material strip is only blown by the blowing component, and the blanking position and folding position of the material strip cannot be accurately controlled. Battery manufacturing requires high position accuracy of the lamination. If the lamination error is large, the battery product produced will be scrapped. If other auxiliary means are used after lamination to improve the lamination accuracy, it will inevitably lead to relative movement between the stacked materials, which will affect the surface properties of the stacked materials and also lead to a decrease in the quality of the battery product produced. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide a continuous reciprocating folding mechanism, a folding method, a lamination mechanism and a lamination method, which can realize continuous folding and continuous lamination and can effectively control the accuracy of folding and lamination.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention first proposes a continuous reciprocating folding mechanism, comprising:

[0007] Lamination table;

[0008] A reciprocating folding mechanism, used for reciprocatingly folding the strip material in a strip shape on the lamination table;

[0009] A folding positioning mechanism for controlling the positions of both ends of the strip during its reciprocating folding;

[0010] The reciprocating folding mechanism includes a folding guide mechanism and a folding drive mechanism; the folding guide mechanism includes a swing arm, the two ends of the swing arm are respectively a moving end and a swinging end, the moving end of the swing arm can rotate relative to a rotating shaft, and the swinging end is provided with a first guide roller group for guiding the strip material, the folding drive mechanism includes a driving component for driving the moving end of the swing arm to move along a preset track and a swinging component for driving or guiding the swing arm to rotate around the rotating shaft, the preset track includes at least one vertical track perpendicular to the stacking table; the first guide roller group moves back and forth relative to the stacking table under the combined action of the linear motion of the moving end of the swing arm perpendicular to the direction of the stacking table and the rotational motion of the swing arm around the rotating shaft, so as to fold the strip material back and forth on the stacking table.

[0011] Furthermore, the preset track includes a vertical track perpendicular to the stacking platform, and a movable slider that slides with the vertical track is provided in the vertical track, and the movable end of the swing arm is rotationally engaged with the movable slider through the rotating shaft.

[0012] Furthermore, the preset track includes two vertical tracks perpendicular to the stacking platform, and the two vertical tracks are connected by an arc track at one end away from the stacking platform; or the two ends of the two vertical tracks are connected by an arc track respectively.

[0013] Furthermore, the swing assembly includes a swing track, and a slider is provided on the swing arm, and the slider slides with the swing track and can rotate relative to the swing track; or the swing assembly includes a swing control motor for controlling the swing arm to rotate around the rotating shaft.

[0014] Furthermore, a first roller frame is provided at the swing end of the swing arm, and the first guide roller group is mounted on the first roller frame; the first roller frame is fixedly mounted on the swing arm, or the first roller frame and the swing arm are rotationally matched.

[0015] Furthermore, the first guide roller group includes two first guide rollers arranged opposite to each other, and a first symmetry plane parallel to the axes of the two first guide rollers is provided between the two first guide rollers; when the first roller frame is fixedly mounted on the swing arm, the axis of the rotating shaft falls on the first symmetry plane; when the first roller frame and the swing arm rotate in coordination, the axis of the first rotating shaft of the first roller frame rotating relative to the swing arm falls on the first symmetry plane.

[0016] Furthermore, when the first roller frame and the swing arm are rotationally engaged, a posture control motor is installed on the swing arm for controlling the rotation angle of the first roller frame relative to the swing arm.

[0017] Furthermore, it also includes a second guide roller group for guiding the strip material to the first guide roller group; the movable end of the swing arm is provided with a second roller frame, and the second guide roller group is installed on the second roller frame; or, the second guide roller group is fixed relative to the preset track.

[0018] Furthermore, the second guide roller group is installed on the second roller frame, and the second guide roller group includes two second guide rollers arranged opposite to each other, and a second symmetry plane parallel to the axes of the two second guide rollers is provided between the two second guide rollers, and the axis of the rotating shaft falls on the second symmetry plane.

[0019] Furthermore, the folding and positioning mechanism includes positioning rods, positioning pressure pins or positioning pressure blocks respectively located at the two ends of the strip material folding back and forth.

[0020] Furthermore, it also includes a strip material caching mechanism, which includes fixed rollers located on both sides, a movable roller and a tension mechanism for driving the movable roller to move to control the tension of the strip material are provided between the two fixed rollers, and the strip material enters the reciprocating folding mechanism after passing through the caching mechanism.

[0021] Furthermore, it also includes a lamination table moving drive mechanism for driving the lamination table to move in a direction perpendicular to its table surface.

[0022] Furthermore, the movable end of the swing arm is located above or below the lamination platform, and the swing end of the swing arm is located above the lamination platform.

[0023] Furthermore, the trajectory of the center of the first guide roller group moving relative to the lamination platform is a straight line parallel to the lamination platform.

[0024] The present invention also proposes a continuous reciprocating folding method, comprising the following steps:

[0025] 1) The swing end of the swing arm and the first guide roller assembly are positioned at the end position of the first end of the strip material folding back and forth, and the strip material at the first end is pressed and fixed by the folding positioning mechanism; the plane passing through the axis of the rotating shaft and perpendicular to the lamination table is used as the reference plane, and the angle between the swing arm and the reference plane reaches the maximum positive value at this time;

[0026] 2) Using the linear drive assembly to drive the movable end of the swing arm to move in a direction away from the laminating table, and simultaneously using the swing drive assembly to drive the swing arm to rotate about the rotating axis, so that the angle between the swing arm and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm about the rotating axis, the swing end of the swing arm moves relative to the laminating table toward the second end of the strip material reciprocating folding;

[0027] 3) When the angle between the swing arm and the reference plane decreases to zero, the distance between the movable end of the swing arm and the stacking table reaches its maximum value; thereafter, the movable end of the swing arm is driven by the linear drive assembly to move toward the stacking table, and at the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotation axis, so that the angle between the swing arm and the reference plane increases in the opposite direction. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotation axis, the swing end of the swing arm continues to move relative to the stacking table toward the second end of the strip folding;

[0028] 4) When the swing end of the swing arm and the first guide roller group reach the end position of the second end of the strip material to be folded back and forth, the angle between the swing arm and the reference plane reaches the reverse maximum value, and the folding positioning mechanism is used to press and fix the strip material at the second end;

[0029] 5) Using the linear drive assembly to drive the movable end of the swing arm to move in a direction away from the laminating table, and at the same time using the swing drive assembly to drive the swing arm to rotate around the rotating axis, so that the angle between the swing arm and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotating axis, the swing end of the swing arm moves relative to the laminating table toward the first end of the strip material reciprocating folding;

[0030] 6) When the angle between the swing arm and the reference plane decreases to zero, the distance between the movable end of the swing arm and the stacking table reaches its maximum value; thereafter, the movable end of the swing arm is driven by the linear drive assembly to move toward the stacking table, and at the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotation axis, so that the angle between the swing arm and the reference plane increases in the positive direction. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotation axis, the swing end of the swing arm continues to move relative to the stacking table toward the first end of the strip folding;

[0031] 7) When the swing end of the swing arm and the first guide roller group reach the end position of the first end of the strip material folding back and forth, the angle between the swing arm and the reference plane reaches the maximum positive value, and the folding positioning mechanism is used to press and fix the strip material at the first end;

[0032] 8) Repeat steps 2 to 7) until the strip is folded.

[0033] Furthermore, in step 4) and step 7), when the swing end of the swing arm and the first guide roller group reach the end position of the first end or the second end of the back-and-forth folding of the strip, the first guide roller group is driven to move toward the lamination table to reduce the distance between the first guide roller group and the lamination table, so that the strip on the first guide roller group fits with the folded strip below it, and then the folding positioning mechanism is used to press and fix the strip; when the strip is pressed and fixed by the folding positioning mechanism, the first guide roller group is driven to move back to the lamination table to increase the distance between the first guide roller group and the lamination table, so that the first guide roller group returns to the preset position.

[0034] Furthermore, in the process of driving the first guide roller group to move toward or away from the stacking platform, the moving end of the swing arm moves synchronously with the first guide roller group; or, the swing arm rotates a set angle relative to the rotating shaft to control the guide roller group to move toward or away from the stacking platform.

[0035] Furthermore, a first roller frame is provided at the swing end of the swing arm, and the first guide roller group is mounted on the first roller frame; the first roller frame and the swing arm are rotationally engaged, and a posture control motor is mounted on the swing arm for controlling the rotation angle of the first roller frame relative to the swing arm;

[0036] In step 4) and step 7), when the swing end of the swing arm and the first guide roller group reach the end position of the first end or the second end of the strip material to be folded back and forth, the posture control motor is used to control the first roller frame to rotate relative to the swing arm to reduce the distance between the first guide roller group and the lamination table, so that the strip material on the first guide roller group fits with the folded strip material located below it, and then the folding positioning mechanism is used to press and fix the strip material; when the strip material is pressed and fixed by the folding positioning mechanism, the posture control motor is used to control the first roller frame to rotate and reset relative to the swing arm, so that the first guide roller group returns to the preset position.

[0037] Furthermore, in steps 2), 3), 5) and 6), the center of the first guide roller group is moved along a straight line parallel to the lamination table.

[0038] Furthermore, a first roller frame is provided at the swing end of the swing arm, and the first guide roller group is mounted on the first roller frame; the first roller frame and the swing arm are rotationally engaged, and a posture control motor is mounted on the swing arm for controlling the rotation angle of the first roller frame relative to the swing arm;

[0039] In the steps 2), 3), 5) and 6), the attitude control motor is used to control the angle of the first roller frame relative to the swing arm, thereby achieving control of the attitude of the first guide roller group.

[0040] Furthermore, the first guide roller group includes two first guide rollers arranged opposite to each other, and the attitude control motor is used to control the angle of the first roller frame relative to the swing arm so that the plane where the axes of the two first guide rollers are located remains parallel to the lamination table.

[0041] Furthermore, it also includes a lamination table moving drive mechanism for driving the lamination table to move in a direction perpendicular to its table surface;

[0042] After the first roller group moves a set number of n times between the first and second ends of the folded strip, the stacking table moving drive mechanism drives the stacking table to move a distance s in the direction away from the first guide roller group, where s = n*h, h is the thickness of the strip, and n≥1.

[0043] The present application also provides a continuous reciprocating lamination mechanism, comprising the continuous reciprocating folding mechanism and a sheet material lamination feeding mechanism for feeding sheet material and laminating the sheet material on the strip material after each folding.

[0044] Further, the lamination area is formed between the two ends of the reciprocating folding of the strip material, and the sheet material lamination feeding mechanism comprises a sheet material feeding mechanism for feeding the sheet material to the lamination area and a sheet material positioning mechanism for positioning the sheet material in the set lamination area.

[0045] Further, the sheet material feeding mechanism comprises:

[0046] A feeding belt, at least one end of the feeding belt is provided with a feeding end;

[0047] A feeding driving mechanism for driving the feeding end to reciprocate between a starting position and an ending position, when both ends of the feeding belt are provided with the feeding end, the starting positions of the two feeding ends are located at the opposite ends of the lamination area respectively; and

[0048] When the feeding end is located at the starting position, the feeding end is located outside the lamination area and close to one end of the lamination area; when the feeding end is located at the ending position, the feeding end is located inside the lamination area and close to the other end of the lamination area.

[0049] A feeding control mechanism for synchronously moving the sheet material with the feeding belt during the movement of the feeding end from the starting position to the ending position and for allowing the sheet material to be separated from the feeding belt during the movement of the feeding end from the ending position to the starting position.

[0050] Further, the sheet material positioning mechanism comprises a sheet material positioning member, the sheet material positioning member is arranged close to the ending position of the corresponding feeding end, and the sheet material positioning member comprises a sheet material pressing rod, a sheet material pressing pin or a sheet material pressing block.

[0051] The present application also provides a continuous reciprocating lamination method, comprising the following steps:

[0052] 1) The swinging end of the swing arm and the first guide roller group are located at the end position of the first end of the reciprocating folding of the strip material, and the strip material at the first end is tightly fixed by the folding positioning mechanism; taking the plane perpendicular to the lamination table and passing through the rotation shaft axis as the reference plane, the included angle between the swing arm and the reference plane reaches the maximum positive value at this time;

[0053] 2) Using the linear drive assembly to drive the movable end of the swing arm to move in a direction away from the laminating table, and simultaneously using the swing drive assembly to drive the swing arm to rotate about the rotating axis, so that the angle between the swing arm and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm about the rotating axis, the swing end of the swing arm moves relative to the laminating table toward the second end of the strip material reciprocating folding;

[0054] 3) When the angle between the swing arm and the reference plane decreases to zero, the distance between the movable end of the swing arm and the stacking table reaches its maximum value; thereafter, the movable end of the swing arm is driven by the linear drive assembly to move toward the stacking table, and at the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotation axis, so that the angle between the swing arm and the reference plane increases in the opposite direction. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotation axis, the swing end of the swing arm continues to move relative to the stacking table toward the second end of the strip folding;

[0055] 4) When the swing end of the swing arm and the first guide roller group reach the end position of the second end of the strip material to be folded back and forth, the angle between the swing arm and the reference plane reaches the reverse maximum value, and the folding positioning mechanism is used to press and fix the strip material at the second end;

[0056] 5) Using the sheet stacking feeding mechanism to stack the sheet material on the belt material;

[0057] 6) Using the linear drive assembly to drive the movable end of the swing arm to move in a direction away from the laminating table, and at the same time using the swing drive assembly to drive the swing arm to rotate around the rotating axis, so that the angle between the swing arm and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotating axis, the swing end of the swing arm moves relative to the laminating table toward the first end of the strip material reciprocating folding;

[0058] 7) When the angle between the swing arm and the reference plane decreases to zero, the distance between the movable end of the swing arm and the stacking table reaches its maximum value; thereafter, the movable end of the swing arm is driven by the linear drive assembly to move toward the stacking table, and at the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotation axis, so that the angle between the swing arm and the reference plane increases in the positive direction. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotation axis, the swing end of the swing arm continues to move relative to the stacking table toward the first end of the strip reciprocating folding;

[0059] 8) When the swing end of the swing arm and the first guide roller group reach the end position of the first end of the strip material folding back and forth, the angle between the swing arm and the reference plane reaches the maximum positive value, and the folding positioning mechanism is used to press and fix the strip material at the first end;

[0060] 9) Using the sheet stacking feeding mechanism to stack the sheet material on the belt material;

[0061] 10) Repeat steps 2 to 9) until the strip is folded.

[0062] Furthermore, in step 4) and step 8), when the swing end of the swing arm and the first guide roller group reach the end position of the first end or the second end of the back-and-forth folding of the strip, the first guide roller group is driven to move toward the lamination table to reduce the distance between the first guide roller group and the lamination table, so that the strip on the first guide roller group fits with the folded strip below it, and then the folding positioning mechanism is used to press and fix the strip; when the strip is pressed and fixed by the folding positioning mechanism, the first guide roller group is driven to move back to the lamination table to increase the distance between the first guide roller group and the lamination table, so that the first guide roller group returns to the preset position.

[0063] Furthermore, in the process of driving the first guide roller group to move toward or away from the stacking platform, the moving end of the swing arm moves synchronously with the first guide roller group; or, the swing arm rotates a set angle relative to the rotating shaft to control the guide roller group to move toward or away from the stacking platform.

[0064] Furthermore, a first roller frame is provided at the swing end of the swing arm, and the first guide roller group is mounted on the first roller frame; the first roller frame and the swing arm are rotationally engaged, and a posture control motor is mounted on the swing arm for controlling the rotation angle of the first roller frame relative to the swing arm;

[0065] In step 4) and step 8), when the swing end of the swing arm and the first guide roller group reach the end position of the first end or the second end of the reciprocating folding of the strip, the posture control motor is used to control the first roller frame to rotate relative to the swing arm to reduce the distance between the first guide roller group and the lamination table, so that the strip on the first guide roller group fits with the folded strip located below it, and then the folding positioning mechanism is used to press and fix the strip; when the strip is pressed and fixed by the folding positioning mechanism, the posture control motor is used to control the first roller frame to rotate and reset relative to the swing arm, so that the first guide roller group returns to the preset position.

[0066] Furthermore, in steps 2), 3), 6) and 7), the center of the first guide roller group is moved along a straight line parallel to the lamination table.

[0067] Furthermore, a first roller frame is provided at the swing end of the swing arm, and the first guide roller group is mounted on the first roller frame; the first roller frame and the swing arm are rotationally engaged, and a posture control motor is mounted on the swing arm for controlling the rotation angle of the first roller frame relative to the swing arm;

[0068] In the steps 2), 3), 6) and 7), the attitude control motor is used to control the angle of the first roller frame relative to the swing arm, thereby achieving control of the attitude of the first guide roller group.

[0069] Further, the first guide roller set comprises two oppositely arranged first guide rollers, and the angle of the first roller frame relative to the swing arm is controlled by a posture control motor, so that the plane where the axes of the two first guide rollers are located is kept parallel to the laminating table.

[0070] Further, the laminating table moving driving mechanism for driving the laminating table to move along the direction perpendicular to the table surface is further included.

[0071] When the first roller set moves between the first end and the second end of the back-and-forth folding for a set number of N times, the laminating table is driven by the laminating table moving driving mechanism to move in the direction away from the first guide roller set by a distance S, and S = N*H, H is the sum of the thickness of one layer of the strip and one layer of the sheet, and N ≥ 1.

[0072] The present application has the following beneficial effects:

[0073] The continuous reciprocating folding mechanism of the present application can control the reciprocating movement of the swing end of the swing arm relative to the laminating table along the preset track when the folding is performed, and the swing end of the swing arm is moved to the first end of the folding relative to the laminating table by using the folding positioning mechanism to press and fix the strip at the first end of the back-and-forth folding, and then the swing end is moved to the second end of the folding relative to the laminating table, and the strip at the second end of the back-and-forth folding is again pressed and fixed by using the folding positioning mechanism, so that the strip can be positioned and folded on the laminating table, and the positions of the two ends of the folding are precisely positioned and controlled by the folding positioning mechanism, so that not only the continuous folding can be realized, but also the folding precision can be improved. In addition, the length between the first end and the second end of the back-and-forth folding can be controlled by controlling the relative movement distance of the swing end and the first guide roller set and the laminating table, so that the folding requirements of different sizes can be met, and the folding requirements of larger length sizes are particularly suitable, and the generality is better.

[0074] The continuous reciprocating laminating mechanism of the present application can transport the sheet by using the sheet conveying mechanism during the folding of the strip by using the continuous reciprocating folding mechanism, so that the sheet is sequentially laminated on the folded strip, so that there is one layer of sheet between the two adjacent layers of the folded strip, so as to meet the laminating production requirements of different products. BRIEF DESCRIPTION OF DRAWINGS

[0075] In order to make the purpose, technical scheme and beneficial effects of the present application clearer, the present application provides the following drawings for illustration:

[0076] Figure 1 It is a structural schematic view of the continuous reciprocating folding mechanism of the present application embodiment 1.

[0077] Figure 2 It is a detailed view of A in Figure 1 the figure.

[0078] Figure 3 It is a schematic diagram of the local structure when the first roller frame is fixedly connected to the swing arm;

[0079] Figure 4 This is a schematic diagram of the structure when the second guide roller group is installed at the moving end of the swing arm;

[0080] Figure 5 This is a structural diagram when the movable end of the swing arm is located below the stacking table;

[0081] Figure 6 It is a schematic diagram of the state when the folded first end of the strip is pressed and fixed;

[0082] Figure 7 is a schematic diagram of a state in which the swing end of the swing arm moves toward the folded second end;

[0083] Figure 8 This is a schematic diagram of the state when the swing arm is perpendicular to the stacking table;

[0084] Figure 9 is a schematic diagram of a state in which the swing end of the swing arm continues to move toward the folded second end;

[0085] Figure 10 is a schematic diagram of a state when the swing end of the swing arm reaches the second folded end;

[0086] Figure 11 This is a schematic diagram of the state when the swing end of the swing arm reduces the distance between it and the lamination table;

[0087] Figure 12 is a schematic diagram of a state in which the folded second end of the strip is compressed and fixed;

[0088] Figure 13 is a schematic diagram of a state in which the swing end of the swing arm moves toward the folded first end;

[0089] Figure 14 This is a schematic diagram of the state when the swing arm is perpendicular to the stacking table;

[0090] Figure 15 is a schematic diagram of a state in which the swing end of the swing arm continues to move toward the folded first end;

[0091] Figure 16 is a schematic diagram of the state when the swing end of the swing arm reaches the first folded end;

[0092] Figure 17 This is a schematic diagram of the state when the swing end of the swing arm reduces the distance between it and the lamination table;

[0093] Figure 18 It is a schematic diagram of the state when the folded first end of the strip is pressed and fixed;

[0094] Figure 19 Structure diagram of the first embodiment of the continuous reciprocating lamination mechanism of the present application;

[0095] Figure 20 Detail view of B in Figure 19

[0096] Figure 21 Detail view of C in Figure 19

[0097] Figure 22 Structure diagram of the second embodiment of the continuous reciprocating lamination mechanism of the present application;

[0098] Figure 23 Structure diagram of the third embodiment of the continuous reciprocating lamination mechanism of the present application;

[0099] Figure 24 Structure diagram of the first end when the strip material and the sheet material are pressed and fixed;

[0100] Figure 25 Structure diagram when the swinging end moves towards the folded second end;

[0101] Figure 26 Structure diagram when the swinging arm is perpendicular to the lamination table;

[0102] Figure 27 Structure diagram when the swinging end of the swinging arm continues to move towards the folded second end;

[0103] Figure 28 Structure diagram when the swinging end of the swinging arm reaches the folded second end, at which time the sheet material of one of the feeding ends is separated from it;

[0104] Figure 29 Structure diagram when the swinging end of the swinging arm reduces the distance between itself and the lamination table, at which time the sheet material of the other feeding end is pressed and positioned;

[0105] Figure 30 Structure diagram when the strip material of the folded second end is pressed and fixed;

[0106] Figure 31 Structure diagram when the swinging end of the swinging arm moves towards the folded first end;

[0107] Figure 32 Structure diagram when the swinging arm is perpendicular to the lamination table;

[0108] Figure 33 Structure diagram when the swinging end of the swinging arm continues to move towards the folded first end;

[0109] Figure 34 ​​This is a schematic diagram of the state when the swing end of the swing arm reaches the first folded end, at which time the sheet material at one of the feeding ends is separated from it;

[0110] Figure 35 This is a schematic diagram of the state when the swing end of the swing arm reduces the distance between it and the stacking table. At this time, the sheet at the other feeding end is pressed and positioned;

[0111] Figure 36 It is a schematic diagram of the state when the folded first end of the strip is pressed and fixed;

[0112] Figure 37 This is a schematic structural diagram of a second embodiment of the continuous reciprocating folding mechanism of the present invention;

[0113] Figure 38 This is a structural diagram of an embodiment in which curved tracks are provided at both ends of the two vertical tracks.

[0114] Description of reference numerals:

[0115] 1-strip material; 2-sheet material; 3-strip material; 4-first pole piece strip material; 5-diaphragm;

[0116] 10-Laminating table; 11-Swing arm; 111-Moving end; 112-Swing end; 12-Rotating shaft; 13-First guide roller group; 14-Preset track; 141-Track line; 15-Moving slider; 16-First roller frame; 161-First rotating shaft; 17-Second guide roller group; 171-Second roller frame; 18-Positioning block; 19-Fixed roller; 20-Moving roller; 21-First pole piece strip unwinding roller; 22-Diaphragm composite roller; 23-Diaphragm unwinding roller; 24-Diaphragm tension mechanism; 25-Pole piece cutting mechanism; 26-Encoder; 27-Feeding roller group; 28-First pole piece strip buffer area; 29-Heating box; 30-Hot roller composite roller group;

[0117] 50-feeding belt; 51-feeding end; 51a-first feeding end; 51b-second feeding end; 52-driving member; 53-tension mechanism; 54-control member; 55-guide plate; 56-front conveying roller; 57-rear conveying roller; 58-conveyor belt; 59-material receiving roller; 60-unwinding roller; 61-cutter mechanism; 62-driving roller group; 63-support platform; 64-encoder; 65-fixed roller; 66-tension movable roller; 67-sheet positioning member; 68-fixed roller; 69-moving roller. DETAILED DESCRIPTION

[0118] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0119] Example 1

[0120] like Figure 1 FIG. 1 is a schematic diagram of the structure of a continuous reciprocating folding mechanism according to an embodiment of the present invention. The continuous reciprocating folding mechanism according to this embodiment comprises:

[0121] Lamination table 10;

[0122] A reciprocating folding mechanism, used for reciprocatingly folding the strip material 1 on the lamination table 10;

[0123] The folding positioning mechanism is used to control the positions of both ends of the strip 1 during its reciprocating folding.

[0124] The reciprocating folding mechanism includes a folding guide mechanism and a folding drive mechanism; the folding guide mechanism includes a swing arm 11, the two ends of the swing arm 11 are respectively a moving end 111 and a swinging end 112, the moving end 111 of the swing arm 11 can rotate relative to a rotating shaft 12, and the swinging end 112 is provided with a first guide roller group 13 for guiding the strip 1, the folding drive mechanism includes a driving component for driving the moving end 111 of the swing arm 11 to move along a preset track 14 and a swinging component for driving or guiding the swing arm 11 to rotate around the rotating shaft 12, the preset track 14 includes at least one vertical track perpendicular to the stacking table 10; the first guide roller group 13 reciprocates relative to the stacking table 10 under the combined action of the linear motion of the swing arm moving end 111 in a direction perpendicular to the stacking table 10 and the rotational motion of the swing arm 11 around the rotating shaft 12, so as to fold the strip 1 back and forth on the stacking table 10.

[0125] Further, if Figure 1 As shown, the preset track 14 of this embodiment includes a vertical track perpendicular to the stacking table 10, and a movable slider 15 is provided in the vertical track to slide with it. The movable end 111 of the swing arm 11 and the movable slider 15 are rotated together through the rotating shaft 12.

[0126] Furthermore, in the process of the movable end 111 of the swing arm 11 reciprocating along the preset track 14, there are mainly two ways to control the swing arm 11 to rotate around the rotating shaft 12: one is a non-powered method, that is, the swing assembly at this time includes a swing track (not shown in the figure), and a slider is provided on the swing arm 11, which slides with the swing track and can rotate relative to the swing track; specifically, any point is taken on the swing arm 11, and the slider is installed at the position of the point. The walking path of the point in the process of the movable end 11 of the swing arm reciprocating along the preset track 14 and the swing end 112 of the swing arm reciprocating along the preset track is the swing track. The slider slides with the swing track and rotates with the swing arm 11 at the same time. Since the center line of the swing track is a curve, the slider adjusts its posture by rotating around the swing arm 11 during its movement along the swing track to prevent the slider from getting stuck in the swing track. The other is a powered method, in which the swing assembly includes a swing control motor for controlling the swing arm to rotate about the rotation axis. The swing control motor controls the swing arm 11 to drive the swing arm 11 to rotate about the rotation axis 12 according to a set rule, thereby also achieving the technical purpose of driving the swing end 112 of the swing arm 11 to reciprocate along a set trajectory 141 relative to the lamination table 10. Specifically, in this embodiment, the trajectory 141 of the reciprocating movement of the swing end 112 relative to the lamination table 10 is a straight line parallel to the lamination table 10, that is, the trajectory of the center of the first guide roller group 13 relative to the lamination table 10 is a straight line parallel to the lamination table 10. Of course, in other embodiments, the trajectory 141 of the reciprocating movement of the swing end 112 relative to the lamination table 10 can also be a curve or other shape, which will not be repeated.

[0127] Furthermore, a first roller frame 16 is provided at the swing end of the swing arm 11, and the first guide roller group 13 is mounted on the first roller frame 16; the first roller frame 16 is fixedly mounted on the swing arm 11, as shown in FIG. Figure 2 or the first roller frame 16 and the swing arm 11 rotate together, as shown Figure 3 As shown. The first guide roller assembly 13 includes two first guide rollers arranged opposite to each other, with a first symmetry plane parallel to the axes thereof defined between the two first guide rollers. When the first roller frame 16 is fixedly mounted on the swing arm 11, the axis of the rotating shaft 12 falls on the first symmetry plane. When the first roller frame 16 and the swing arm 11 rotate in conjunction with each other, the axis of the first rotating shaft 161, about which the first roller frame 16 rotates relative to the swing arm 11, falls on the first symmetry plane. Specifically, in some embodiments, when the first roller frame 16 and the swing arm 11 rotate in conjunction with each other, a posture control motor is mounted on the swing arm 11 for controlling the rotation angle of the first roller frame 16 relative to the swing arm 11, thereby controlling the posture of the first roller frame 16 in real time to facilitate guiding of the strip 1 during the lamination process.

[0128] Furthermore, the continuous reciprocating folding mechanism of this embodiment further includes a second guide roller set 17 for guiding the strip 1 to the first guide roller set 13; the second guide roller set 17 of this embodiment is fixed relative to the preset track 14. Of course, in some other embodiments, a second roller frame 171 can be provided at the movable end of the swing arm 11, and the second guide roller set 17 is mounted on the second roller frame, such as Figure 4 As shown, the second guide roller set 17 at this time includes two second guide rollers arranged opposite to each other, and a second symmetry plane parallel to the axes of the two second guide rollers is defined between the two second guide rollers, and the axis of the rotating shaft 12 falls on the second symmetry plane.

[0129] Furthermore, the folding and positioning mechanism includes positioning rods, positioning pressure pins, or positioning pressure blocks 18, respectively, located at the two ends of the strip 1 where it folds back and forth. The folding and positioning mechanism of this embodiment includes positioning pressure blocks 18, respectively, located at the two ends of the strip 1 where it folds back and forth. By setting the positioning pressure blocks 18 to press on the folded end positions of the strip 1, the strip 1 can be positioned and folded. Specifically, the positioning pressure blocks 18 press on the topmost layer of the strip 1. Of course, the folding and positioning mechanism can also achieve the same technical purpose by using positioning rods and positioning pressure pins, which will not be repeated here.

[0130] Furthermore, the continuous reciprocating folding mechanism of this embodiment also includes a strip material buffer mechanism, which includes fixed rollers 19 located on both sides, and a movable roller 20 and a tension mechanism for driving the movable roller 20 to move to control the tension of the strip material 1 are provided between the fixed rollers 19 on both sides. After passing through the buffer mechanism, the strip material 1 enters the reciprocating folding mechanism.

[0131] Furthermore, the continuous reciprocating folding mechanism of this embodiment also includes a stacking platform movement drive mechanism for driving the stacking platform 10 in a direction perpendicular to its table surface. The stacking platform movement drive mechanism can be implemented using a screw mechanism, a gear rack mechanism, or other methods, and will not be described in detail. By providing the stacking platform movement drive mechanism to drive the stacking platform 10 in a direction perpendicular to its table surface, when the thickness of the folded strip 1 is relatively thick, the stacking platform 10 can be driven to move to make way.

[0132] Furthermore, the movable end 111 of the swing arm 11 is located above or below the lamination platform 10, and the swing end 112 of the swing arm 11 is located above the lamination platform 10. In this embodiment, the movable end 111 of the swing arm 11 is located above the lamination platform 10. Of course, in other embodiments, the movable end 111 of the swing arm 11 can also be located below the lamination platform 10, such as Figure 5 shown.

[0133] The folding mechanism of this embodiment is a continuous reciprocating folding mechanism. When folding, the movable end of the driving swing arm moves back and forth along the preset track, and at the same time drives the swing arm to rotate around the rotating shaft, so that the swing end of the swing arm can be controlled to move back and forth relative to the stacking table along the preset track. When the swing end moves to the first folding end relative to the stacking table, the folding positioning mechanism is used to press and fix the strip material at the first end of the reciprocating folding, and then the swing end is driven to move relative to the stacking table to the second folding end, and the folding positioning mechanism is used again to press and fix the strip material at the second end of the reciprocating folding. This cycle is repeated to position the strip material on the stacking table, and the positions of the two folded ends are accurately positioned and controlled by the folding positioning mechanism, thereby not only achieving continuous folding, but also improving folding accuracy; in addition, by controlling the relative movement distance of the swing end, the first guide roller group and the stacking table, the length between the first end and the second end of the reciprocating folding of the strip material can be controlled, which can meet the folding requirements of different sizes, is particularly suitable for folding requirements of larger length sizes, and has better versatility.

[0134] The specific implementation of the continuous reciprocating folding method of the present invention will be described in detail below in conjunction with the continuous reciprocating folding mechanism of this embodiment.

[0135] The continuous reciprocating folding method of this embodiment includes the following steps:

[0136] 1) Make the swing end 112 of the swing arm 11 and the first guide roller group 13 located at the end position of the first end of the strip 1 that is folded back and forth, and use the folding positioning mechanism to press and fix the strip 1 at the first end, such as Figure 6 As shown; with the plane through the axis of the rotating shaft 12 and perpendicular to the lamination table 10 as the reference plane, the angle between the swing arm 11 and the reference plane reaches the maximum positive value at this time;

[0137] 2) If Figure 7 As shown, the linear drive assembly is used to drive the movable end 111 of the swing arm 11 to move away from the laminating table 10, and the swing drive assembly is used to drive the swing arm 11 to rotate around the rotating shaft 12, so that the angle between the swing arm 11 and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotating shaft, the swing end of the swing arm moves relative to the laminating table toward the second end of the strip folding;

[0138] 3) If Figure 8As shown, when the angle between the swing arm and the reference plane is reduced to zero, the distance between the moving end of the swing arm and the stacking table reaches a maximum value. At this time, the swing direction of the swing arm can be controlled by setting a shift block or an auxiliary motor. Thereafter, the linear drive component is used to drive the moving end of the swing arm to move toward the stacking table, and the swing drive component is used to drive the swing arm to rotate around the rotating shaft, so that the angle between the swing arm and the reference plane increases in the opposite direction. Under the combined action of the linear motion of the moving end of the swing arm and the rotational motion of the swing arm around the rotating shaft, the swing end of the swing arm continues to move toward the second end of the material folding back and forth relative to the stacking table, as shown in FIG. Figure 9 As shown;

[0139] 4) When the swing end of the swing arm and the first guide roller group reach the end position of the second end of the strip material folding back and forth, the angle between the swing arm and the reference plane reaches the reverse maximum value, and the folding positioning mechanism is used to press and fix the strip material at the second end, such as Figure 10-12 As shown;

[0140] 5) If Figure 13 As shown, a linear drive assembly is used to drive the movable end of the swing arm to move in a direction away from the laminating table, and at the same time, a swing drive assembly is used to drive the swing arm to rotate about the rotating axis, so that the angle between the swing arm and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm about the rotating axis, the swing end of the swing arm moves relative to the laminating table toward the first end of the strip material reciprocating folding;

[0141] 6) If Figure 14 As shown, when the angle between the swing arm and the reference plane decreases to zero, the distance between the moving end of the swing arm and the stacking table reaches a maximum value. At this time, the swing direction of the swing arm can be controlled by setting a shift block or an auxiliary motor. Thereafter, the linear drive component is used to drive the moving end of the swing arm to move toward the stacking table, and the swing drive component is used to drive the swing arm to rotate around the rotating axis, so that the angle between the swing arm and the reference plane increases in the positive direction. Under the combined action of the linear motion of the moving end of the swing arm and the rotational motion of the swing arm around the rotating axis, the swing end of the swing arm continues to move toward the first end of the material reciprocating folding relative to the stacking table, as shown in FIG. Figure 15 As shown;

[0142] 7) When the swing end of the swing arm and the first guide roller group reach the end position of the first end of the strip material folding back and forth, the angle between the swing arm and the reference plane reaches the maximum positive value, and the folding positioning mechanism is used to press and fix the strip material at the first end, such as Figure 16-8 As shown;

[0143] 8) Repeat steps 2 to 7) until the strip is folded.

[0144] Furthermore, in step 4) and step 7), when the swing end 112 of the swing arm 11 and the first guide roller group 13 reach the end position of the first end or the second end of the back-and-forth folding of the strip 1, the first guide roller group 13 is driven to move toward the laminating table 10 to reduce the distance between the first guide roller group 13 and the laminating table 10, so that the strip on the first guide roller group 13 fits with the folded strip below it, and then the folding positioning mechanism is used to press and fix the strip, as shown in FIG. Figure 11 and Figure 17 When the strip is folded and fixed by the positioning mechanism, the first guide roller group 13 is driven back to move toward the lamination table 10 to increase the distance between the first guide roller group and the lamination table 10, so that the first guide roller group returns to the preset position, as shown Figure 12 and 18 Specifically, there are multiple ways to drive the first guide roller group 13 toward or away from the stacking platform 10. For example, the swing arm 11 and the first guide roller group 13 mounted on the swing arm 11 can be driven to move toward or away from the stacking platform 10 as a whole. Alternatively, the swing arm 11 can be kept stationary while the swing arm 11 is independently controlled to rotate about the rotation axis 12. This can also achieve the technical purpose of controlling the swing end 112 of the swing arm 11 to move toward or away from the stacking platform 10. That is, in the process of driving the first guide roller group toward or away from the stacking platform 10, the swing arm 11 can be moved synchronously with the first guide roller group 13. Alternatively, the swing arm 11 can be rotated at a set angle relative to the rotation axis to control the movement of the guide roller group 13 toward or away from the stacking platform 10.

[0145] In addition, when the swing end 112 of the swing arm is provided with a first roller frame 16, and the first guide roller group 13 is mounted on the first roller frame; the first roller frame and the swing arm are rotatably coordinated, and the swing arm is equipped with a posture control motor for controlling the rotation angle of the first roller frame relative to the swing arm, the spacing between the first guide roller group 13 and the laminating table 10 can be adjusted by controlling the first guide roller group 13. Specifically, in steps 4) and 7), after the swing end of the swing arm and the first guide roller group reach the end position of the first end or the second end of the strip folding back and forth, the posture control motor is used to control the first roller frame to rotate relative to the swing arm to reduce the spacing between the first guide roller group and the laminating table, so that the strip on the first guide roller group fits with the already folded strip below it, and then the folding positioning mechanism is used to press and fix the strip; after the strip is pressed and fixed by the folding positioning mechanism, the posture control motor is used to control the first roller frame to rotate and reset relative to the swing arm, so that the first guide roller group returns to the preset position.

[0146] Furthermore, in step 2), step 3), step 5) and step 6), the center of the first guide roller group 13 is moved along a straight line parallel to the stacking table 10. Of course, in some other embodiments, by adjusting the movement pattern of the movable end 111 along the preset track 14 and the rotation pattern of the swing arm 11 around the rotating shaft 12, it is also possible to move the center of the first guide roller group 13 along a curved trajectory, which will not be repeated.

[0147] Furthermore, when a first roller frame is provided at the swing end 112 of the swing arm 11, and a first guide roller group is mounted on the first roller frame; the first roller frame and the swing arm are rotationally coupled, and a posture control motor for controlling the rotational angle of the first roller frame relative to the swing arm is mounted on the swing arm, then in steps 2), 3), 5), and 6), the posture control motor can also be used to control the angle of the first roller frame 16 relative to the swing arm 11, thereby controlling the posture of the first guide roller group 13. Specifically, in a preferred embodiment, the first guide roller group includes two first guide rollers disposed opposite each other, and the posture control motor is used to control the angle of the first roller frame relative to the swing arm, so that the plane containing the axes of the two first guide rollers remains parallel to the lamination table 10.

[0148] Furthermore, in some embodiments, after the first roller group moves a set n times between the first end and the second end of the folded strip, the stacking table moving drive mechanism is used to drive the stacking table to move a distance s in the direction away from the first guide roller group, and s = n*h, h is the thickness of the strip, and n≥1.

[0149] Specifically, when producing batteries or capacitors, the first electrode sheet and the second electrode sheet can be interlaced on both sides of the diaphragm to form a strip. After the strip is folded back and forth on the lamination table, a layer of diaphragm is provided between adjacent first and second electrode sheets, thereby forming a battery or capacitor structure that can meet the production requirements of batteries or capacitors. Of course, the first electrode sheet and the second electrode sheet can also be interlaced on both sides of the solid electrolyte to form a strip. After the strip is folded back and forth on the lamination table, a layer of solid electrolyte is provided between adjacent first and second electrode sheets, thereby forming a solid battery or solid capacitor structure that can meet the production requirements of solid batteries or solid capacitors.

[0150] The specific implementation of the continuous reciprocating lamination mechanism of the present invention will be described in detail below in conjunction with the continuous reciprocating folding mechanism of this embodiment.

[0151] like Figure 19Figure 2 is a schematic diagram of the structure of a first embodiment of a continuous reciprocating laminating mechanism according to the present invention. This embodiment comprises a continuous reciprocating folding mechanism and a sheet laminating feeding mechanism. The sheet laminating feeding mechanism is used to convey sheet material 2 and stack the sheet material 2 onto the web 1 after each fold. Specifically, a laminating area is formed between the two ends of the web 1, where the sheet material 2 is folded back and forth. The sheet laminating feeding mechanism comprises a sheet feeding mechanism for conveying the sheet material 2 to the laminating area and a sheet positioning mechanism for positioning the sheet material within the designated laminating area.

[0152] Furthermore, the sheet feeding mechanism of this embodiment includes:

[0153] A feeding belt 50, wherein at least one end of the feeding belt is configured as a feeding end 51;

[0154] A feed drive mechanism is used to drive the feed end to move back and forth between its starting position and end position. When both ends of the feed belt are set as feed ends, the starting positions of the two feed ends are located at opposite ends of the lamination area; and:

[0155] When the feed end is at its starting position, the feed end is outside the laminate area and close to one end of the laminate area; when the feed end is at its end position, the feed end is inside the laminate area and close to the other end of the laminate area;

[0156] The feeding control mechanism is used to make the sheet material move synchronously with the feeding belt when the feeding end moves from its starting position to the end position, and to make the sheet material detach from the feeding belt when the feeding end moves from its end position to the starting position.

[0157] Specifically, such as Figure 19 As shown, when the feed end 51 is provided only at one end of the feed belt 50, a sheet material feeding mechanism is provided at the opposite ends of the lamination platform 10, thereby meeting the technical purpose of laminating the sheet material 2 from both ends of the lamination area onto the folded belt material 1. Specifically, when the feed end 51 is in its starting position, the feed end 51 is located outside the lamination area and close to one end of the lamination area; when the feed end 51 is in its end position, the feed end 51 is located within the lamination area and close to the other end of the lamination area, thereby meeting the technical purpose of feeding the sheet material 2 from outside the lamination area to the lamination area. The feed control mechanism of this embodiment is used to synchronize the movement of the sheet material 2 and the feed belt 50 during the movement of the feed end 51 from its starting position to the end position, and to allow the sheet material 2 to detach from the feed belt 50 during the movement of the feed end 51 from its end position to the starting position. The sheet material positioning mechanism of this embodiment is used to position the sheet material 2 within a set lamination area.

[0158] like Figure 22 and 23As shown, when both ends of the feeding belt 50 are set as feeding ends 51, the starting positions of the two feeding ends 51 are respectively located at the opposite ends of the lamination area, that is, at this time, only one sheet material feeding mechanism is set, which can also meet the technical purpose of laminating the sheet material 2 on the folded belt material 1 from both ends of the lamination area. There are two ways to set the feeding ends 51 at both ends of the lamination platform 10: the first way is as follows: Figure 4 As shown, there is a linkage relationship between the two feeding ends 51, that is, when one feeding end 51 is at its starting position, the other feeding end 51 is at its end position; when one feeding end 51 moves from its starting position to its end position, the other feeding end 51 moves from its end position to its starting position; when one feeding end 51 moves from its end position to its starting position, the other feeding end 51 moves from its starting position to its end position. Figure 5 As shown, a buffer zone is provided on the feeding belt 50, and a fixed roller 68 and a movable roller 69 are provided in the buffer zone. The movable roller 69 is used to control the tension of the feeding belt 50, that is, a tension mechanism 53 is formed in the buffer zone at the same time; due to the existence of the buffer zone, when the length of the feeding belt 50 in the buffer zone is long enough, the feeding ends 51 at both ends of the feeding belt 50 can be controlled to move respectively, that is, at this time, there is no linkage relationship between the feeding ends 51 at both ends of the feeding belt 50, that is, the feeding ends 51 at both ends of the feeding belt 50 can be controlled independently, and the control method of each feeding end 51 is the same as that of the other feeding ends. Figure 1 The example shown is equivalent to that when the feeding end 51 is provided at only one end of the feeding belt 50, and will not be described again.

[0159] Furthermore, the feed drive mechanism includes a drive member 52, which is provided in a one-to-one correspondence with the feed end 51. The drive member 52 is disposed below the corresponding feed end 51, and the feed end 51 and the corresponding drive member 52 move synchronously. In this embodiment, the feed end 51 and the corresponding drive member 52 are fixedly connected to achieve synchronous movement. Specifically, the feed belt 50 is also provided with a tension mechanism 53, which ensures that the feed belt 50 maintains sufficient tension during the movement of the feed end 51 between its starting position and its end position.

[0160] Furthermore, the feed control mechanism includes a control member 54, which is provided in a one-to-one correspondence with the driver 52 and moves synchronously with the driver 52. The control member 54 is positioned above the corresponding feed end 51. The function of the control member 54 is to ensure that the sheet 2 moves synchronously with the feed belt 50 during the movement of the feed end 51 from its starting position to its end position, and to allow the sheet 2 to disengage from the feed belt 50 during the movement of the feed end 51 from its end position to its starting position. To achieve this technical purpose, the control member 54 can be implemented in a variety of ways. The first way is to provide a gap control mechanism on the control member 54, which is used to adjust the gap between the control member 54 and the driver 52. By adjusting the gap between the control member 54 and the driving member 52, when the feeding end 51 moves from its starting position to the end position, the gap between the control member 54 and the driving member 52 can be reduced, and appropriate pressure can be applied to the sheet 2 so that it moves synchronously with the feeding belt 50; when the feeding end 51 moves from its end position to the starting position, the gap between the control member 54 and the driving member 52 can be increased, that is, no pressure will be applied to the sheet 2, so that the sheet 2 can be detached from the feeding belt 50. The second method: the control member 54 adopts a control roller, which can only rotate in one direction and make the tangential velocity of the point closest to the feed belt 50 point to the end position of the corresponding feed end 51 during rotation; in this way, when the feed end 51 moves from its starting position to the end position, the control roller is subjected to the friction force applied by the sheet 2 toward the side of the starting position of the corresponding feed end 51. The torque applied to the control roller by this friction force is opposite to the direction in which the control roller can rotate, so the control roller will not rotate under the action of this friction force, that is, the sheet 2 will not slide on the feed belt 50, so that the sheet 2 and the feed belt 50 move synchronously; when the feed end 51 moves from its end position to the starting position, when the sheet 2 detaches from the feed belt 50, a friction force is applied to the control roller toward the side of the end position of the corresponding feed end 51. At this time, the torque applied to the control roller by the friction force is the same as the direction in which the control roller can rotate, so that the control roller rotates under the action of this friction force, so that the sheet 2 can detach from the feed belt 50. Of course, there are many ways to achieve the control roller rotating in only one direction, such as using a motor to control the direction of the control roller, or providing a ratchet on the control roller's rotating shaft, etc., which will not be repeated here. In some embodiments, when the control member 54 is a control roller, a gap control mechanism can also be provided on the control member 54. Of course, the gap control mechanism can be implemented using an electric cylinder, a screw mechanism, etc., which will not be repeated here.

[0161] Furthermore, in some embodiments, a guide plate 55 is provided below the feeding end 51 for guiding the sheet material 2 when the sheet material 2 is separated from the feeding belt 50. The guide plate 55 moves synchronously with the driving member 52. By providing the guide plate 55, the sheet material 2 can be prevented from being damaged by excessive bending during the process of separating from the feeding belt 50.

[0162] Furthermore, in some embodiments, the feed belt 50 is provided with a roller or a ball for rolling with the sheet material 2 , which can reduce the friction of the sheet material 2 during the process of detaching from the feed belt 50 and avoid damage to the surface of the sheet material 2 .

[0163] Furthermore, the sheet material feeding mechanism of this embodiment also includes a sheet material conveying mechanism for conveying the sheet material 2 to the feed end 51. The sheet material conveying mechanism is provided in a one-to-one correspondence with the feed end 51. Specifically, the sheet material conveying mechanism of this embodiment includes a front conveying roller 56 and a rear conveying roller 57 located at the front and rear ends, respectively, with a conveyor belt 58 disposed between the front conveying roller 56 and the rear conveying roller 57. The feed belt 21 is provided with a receiving roller 59, which is located near the front conveying roller 56. Of course, the sheet material conveying mechanism also includes a sheet material conveying motor (not shown) for driving the front conveying roller 56 or the rear conveying roller 57 to rotate, driving the conveyor belt 58 to move and convey the sheet material 2 to the feed end 51.

[0164] Furthermore, the sheet feeding mechanism of this embodiment also includes a sheet slicing mechanism, which includes an unwinding roller 60 for continuously unwinding a strip, a cutter mechanism 61 for cutting the strip to form a sheet, and a drive roller group 62 for driving the strip 3 to the cutter mechanism 61. The cutter mechanism 61 is located between the rear conveyor roller 57 and the drive roller group 62. By providing the sheet slicing mechanism, the continuous strip 3 can be cut into sheets 2. Preferably, a support platform 63 is provided between the cutter mechanism 61 and the rear conveyor roller 57 and between the cutter mechanism 61 and the drive roller group 62, respectively, to prevent the end of the strip 3 from tilting downward and being unable to smoothly enter the cutter mechanism 61 and the rear conveyor roller 57. Specifically, the strip 3 of this embodiment is the second pole piece.

[0165] Preferably, in some embodiments, an encoder 64 for measuring the length is provided between the driving roller set 62 and the unwinding roller 60 , thereby ensuring the dimensional accuracy of each sheet 2 .

[0166] Preferably, in some embodiments, a strip buffer area for caching the strip 3 is provided between the encoder 64 and the unwinding roller 60. The strip buffer area of ​​this embodiment includes a fixed roller 65 and a tensioning dynamic roller 66, so that the unwinding roller 60 can continuously unwind at a set speed without being affected by the intermittent feeding of the sheet 2.

[0167] Furthermore, the sheet positioning mechanism of this embodiment includes a sheet positioning member 67, which is arranged at a terminal position close to the corresponding feed end 51. The sheet positioning member 67 can be a sheet pressing rod, a sheet pressing needle, or a sheet pressing block. In this embodiment, the sheet positioning member 67 is a sheet pressing block. When the feed end 51 moves to its terminal position, the sheet pressing block is used to press and fix the end of the sheet 2 onto the folded belt 1 in the stacking area, thereby achieving the stacking position of the sheet 2. In the process of driving the feed end 51 to move toward its starting position, the sheet 2 is separated from the feed belt 50.

[0168] Specifically, in some embodiments, the strip 1 is a diaphragm, and the sheet 2 delivered by the feeding ends 51 at both ends of the lamination table 10 are respectively the first electrode and the second electrode, and the first electrode and the second electrode are respectively stacked on both sides of the diaphragm, thereby forming a battery or capacitor structure. In some other embodiments, the strip 1 includes a first electrode strip, and the sheet 2 is the second electrode; both sides of the first electrode strip are respectively compounded with a diaphragm or a solid electrolyte layer; or, both sides of the second electrode are respectively compounded with a diaphragm or a solid electrolyte layer; or, the first electrode strip and one side of the second electrode are respectively compounded with a diaphragm or a solid electrolyte layer. In this way, after the first electrode strip and the second electrode are stacked, there is a diaphragm or a solid electrolyte layer between the adjacent first electrode strips and the second electrode, which can also form a battery or capacitor structure. The strip 1 of this embodiment includes a first electrode strip 4, and both sides of the first electrode strip 4 are respectively compounded with a diaphragm 5. That is, the two sides of the first electrode strip 4 are respectively compounded with a diaphragm 5 to form a strip 1, and the strip feeding mechanism also includes a first electrode strip unwinding roller 21 for continuously unwinding the first electrode strip 4 and a diaphragm compounding mechanism for compounding the diaphragm 5 on both sides of the first electrode strip 4, the diaphragm compounding mechanism includes a diaphragm compounding roller 22 and a diaphragm unwinding roller 23. In some embodiments, a diaphragm tensioning mechanism 24 is provided between the diaphragm compounding roller 22 and the diaphragm unwinding roller 23.

[0169] Specifically, for some first electrode strips with excellent folding performance, the diaphragm 5 can be compounded on both sides of the first electrode strip 4 and then directly folded back and forth on the lamination table 10. For some first electrode strips 4 with poor folding performance, especially those that will affect the quality of the final battery or capacitor product after folding, it is necessary to slice the first electrode strip 4 first and then compound the diaphragm 5 to form the strip 1. At this time, a electrode cutting mechanism 25 for cutting the first electrode strip 4 is provided between the diaphragm compounding roller 22 and the first electrode strip unwinding roller 21. The length of the first electrode sheet cut by the electrode cutting mechanism 25 is equal to the distance between the two end positions of the strip 1 folded back and forth. In this way, after the first electrode strip 4 is sliced, the length of the strip 1 folded back and forth is equal to the length of the first electrode sheet. At this time, the position of the strip 1 folded back and forth can be controlled to be just between the two first electrode sheets. In this way, continuous folding can be achieved by utilizing the flexible and foldable diaphragm 5 without affecting performance.

[0170] Preferably, in order to accurately control the slice length of the first electrode sheet, an encoder 26 for measuring the cut length of the first electrode strip 4 is provided between the electrode cutting mechanism 25 and the first electrode strip unwinding roller 21. In order to drive the first electrode strip 4 to feed continuously, a feed roller group 27 for driving the electrode feeding is provided between the encoder 26 and the electrode cutting mechanism 25. In order to enable the first electrode strip unwinding roller 21 to continuously unwind the first electrode strip 4 at a set speed, a first electrode strip buffer area 28 is provided between the encoder 26 and the first electrode strip unwinding roller 21. The first electrode strip buffer area 28 includes a fixed roller and a movable roller, etc., which will not be repeated.

[0171] Furthermore, a hot pressing laminating mechanism is provided between the diaphragm laminating roller 22 and the strip folding mechanism to improve the laminating performance between the diaphragm 5 and the first pole piece strip 4. The hot pressing laminating mechanism of this embodiment includes a heating box 29 for heating the strip 1 and a hot rolling laminating roller assembly 30 for hot rolling the strip 1.

[0172] The specific implementation of the continuous reciprocating lamination method of the present invention is described in detail below in conjunction with the continuous reciprocating lamination mechanism of this embodiment.

[0173] The continuous reciprocating lamination method of this embodiment includes the following steps:

[0174] 1) The swing end of the swing arm and the first guide roller assembly are positioned at the end position of the first end of the strip material to be folded back and forth, and the strip material at the first end is pressed and fixed by the folding positioning mechanism, as shown in 24; a plane passing through the axis of the rotating shaft and perpendicular to the lamination table is used as a reference plane, and the angle between the swing arm and the reference plane reaches a maximum positive value at this time;

[0175] 2) If Figure 25As shown, a linear drive assembly is used to drive the movable end of the swing arm to move in a direction away from the laminating table, and at the same time, a swing drive assembly is used to drive the swing arm to rotate around the rotating axis, so that the angle between the swing arm and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotating axis, the swing end of the swing arm moves relative to the laminating table toward the second end of the strip material reciprocating folding;

[0176] 3) If Figure 26 As shown, when the angle between the swing arm and the reference plane decreases to zero, the distance between the moving end of the swing arm and the stacking table reaches a maximum value; thereafter, the linear drive component is used to drive the moving end of the swing arm to move toward the stacking table, and at the same time, the swing drive component is used to drive the swing arm to rotate around the rotating axis, so that the angle between the swing arm and the reference plane increases in the opposite direction. Under the combined action of the linear motion of the moving end of the swing arm and the rotational motion of the swing arm around the rotating axis, the swing end of the swing arm continues to move toward the second end of the strip folding relative to the stacking table, as shown in FIG. Figure 27 As shown;

[0177] 4) When the swing end of the swing arm and the first guide roller group reach the end position of the second end of the strip material folding back and forth, the angle between the swing arm and the reference plane reaches the reverse maximum value, and the folding positioning mechanism is used to press and fix the strip material at the second end, such as Figures 28-30 As shown;

[0178] 5) Use the sheet stacking feeding mechanism to stack the sheet material on the belt material, such as Figures 29-30 As shown;

[0179] 6) If Figure 31 As shown, a linear drive assembly is used to drive the movable end of the swing arm to move in a direction away from the laminating table, and at the same time, a swing drive assembly is used to drive the swing arm to rotate about the rotating axis, so that the angle between the swing arm and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm about the rotating axis, the swing end of the swing arm moves relative to the laminating table toward the first end of the strip material reciprocating folding;

[0180] 7) If Figure 32 As shown in FIG, when the angle between the swing arm and the reference plane decreases to zero, the distance between the moving end of the swing arm and the stacking table reaches a maximum value; thereafter, the moving end of the swing arm is driven by the linear drive component to move toward the stacking table, and at the same time, the swing drive component is used to drive the swing arm to rotate around the rotation axis, so that the angle between the swing arm and the reference plane increases in the positive direction. Under the combined action of the linear motion of the moving end of the swing arm and the rotational motion of the swing arm around the rotation axis, the swing end of the swing arm continues to move toward the first end of the strip folding relative to the stacking table, as shown in FIG. Figure 33 As shown;

[0181] 8) When the swing end of the swing arm and the first guide roller group reach the end position of the first end of the strip material folding back and forth, the angle between the swing arm and the reference plane reaches the maximum positive value, and the folding positioning mechanism is used to press and fix the strip material at the first end, such as Figures 34-36 As shown;

[0182] 9) Use the sheet stacking feeding mechanism to stack the sheet material on the belt material, such as Figures 35-36 As shown;

[0183] 10) Repeat steps 2 to 9) until the strip is folded.

[0184] Furthermore, in step 4) and step 8), when the swing end of the swing arm and the first guide roller group reach the end position of the first end or the second end of the back-and-forth folding of the strip, the first guide roller group is driven to move toward the lamination table to reduce the distance between the first guide roller group and the lamination table, so that the strip on the first guide roller group fits with the folded strip below it, and then the folding positioning mechanism is used to press and fix the strip; when the strip is pressed and fixed by the folding positioning mechanism, the first guide roller group is driven to move back to the lamination table to increase the distance between the first guide roller group and the lamination table, so that the first guide roller group returns to the preset position. Specifically, there are multiple ways to drive the first guide roller group 13 to move toward or away from the laminating platform 10. For example, the swing arm 11 and the first guide roller group 13 mounted on the swing arm 11 can be driven to move toward or away from the laminating platform 10 as a whole. Alternatively, the position of the movable end 11 of the swing arm can be kept stationary, and the swing arm 11 can be independently controlled to rotate about the rotation axis 12. Alternatively, the swing end 112 of the swing arm 11 can be controlled to move toward or away from the laminating platform 10. That is, in the process of driving the first guide roller group to move toward or away from the laminating platform 10, the movable end 111 of the swing arm can be moved synchronously with the first guide roller group 13. Alternatively, the swing arm 11 can be rotated at a set angle relative to the rotation axis to control the movement of the first guide roller group 13 toward or away from the laminating platform 10.

[0185] In addition, when the swing end 112 of the swing arm is provided with a first roller frame 16, and the first guide roller group 13 is mounted on the first roller frame; the first roller frame and the swing arm are rotatably coordinated, and the swing arm is equipped with a posture control motor for controlling the rotation angle of the first roller frame relative to the swing arm, the spacing between the first guide roller group 13 and the laminating table 10 can be adjusted by controlling the first guide roller group 13. Specifically, in steps 4) and 8), after the swing end of the swing arm and the first guide roller group reach the end position of the first end or the second end of the strip folding back and forth, the posture control motor is used to control the first roller frame to rotate relative to the swing arm to reduce the spacing between the first guide roller group and the laminating table, so that the strip on the first guide roller group fits with the already folded strip below it, and then the folding positioning mechanism is used to press and fix the strip; after the strip is pressed and fixed by the folding positioning mechanism, the posture control motor is used to control the first roller frame to rotate and reset relative to the swing arm, so that the first guide roller group returns to the preset position.

[0186] Furthermore, in steps 2), 3), 6), and 7), the center of the first guide roller set is caused to move along a straight line parallel to the lamination table. Of course, in other embodiments, by adjusting the movement pattern of the movable end 111 along the preset track 14 and the rotation pattern of the swing arm 11 about the rotation axis 12, the center of the first guide roller set 13 can also be moved along a curved track, which will not be further described.

[0187] Furthermore, when the swing end 112 of the swing arm 11 is provided with a first roller frame, and the first guide roller group is mounted on the first roller frame; the first roller frame and the swing arm are rotationally coordinated, and the swing arm is mounted with a posture control motor for controlling the rotation angle of the first roller frame relative to the swing arm, in steps 2), 3), 6), and 7), the posture control motor can also be used to control the angle of the first roller frame relative to the swing arm, thereby achieving posture control of the first guide roller group. Specifically, in a preferred embodiment, the first guide roller group includes two first guide rollers arranged opposite to each other, and the posture control motor is used to control the angle of the first roller frame relative to the swing arm, so that the plane where the axes of the two first guide rollers are located remains parallel to the lamination table 10.

[0188] Furthermore, in some embodiments, after the first roller group moves a set N times between the first end and the second end of the folded strip, the stacking table moving drive mechanism is used to drive the stacking table to move a distance S in the direction away from the first guide roller group, and S = N*H, H is the sum of the thickness of a layer of strip and a layer of sheet, and N≥1.

[0189] Specifically, the method of stacking sheet materials on a belt material using a sheet material conveying mechanism includes the following steps:

[0190] (1) Move the feeding end 51 to its starting position; at this time, sheet stacking feeding mechanisms are respectively provided at both ends of the stacking platform 10, and the sheet stacking feeding mechanism on the left is referred to as the first sheet stacking feeding mechanism, and the sheet stacking feeding mechanism on the right is referred to as the second sheet stacking feeding mechanism; the sheet stacking feeding method of this embodiment is described in detail below based on the action process of the first sheet stacking feeding mechanism. Specifically, Figure 24 In the state shown, the feeding end 51 of the first sheet stack feeding mechanism is located at its starting position.

[0191] (2) After the sheet material 2 is delivered to the feeding end, the feeding end 51 is driven to move toward its end position by the feeding drive mechanism, and the sheet material 2 is moved synchronously with the feeding belt 50 under the action of the feeding control mechanism. Figure 25-29 As shown, the feed end 51 of the first sheet stack feed mechanism moves from its starting position towards its end position.

[0192] (3) After the feeding end 51 reaches its end position, the sheet positioning mechanism is used to position the end of the sheet 2 in the lamination area. Figure 30 As shown, the feeding end 51 of the first sheet stack feeding mechanism reaches its end position, and the sheet positioning member 67 is used to position and press the end of the sheet 2 on the stacking area.

[0193] (4) Drive the feeding end 51 to move toward its starting position, and under the action of the feeding mechanism, the sheet 2 gradually separates from the feeding belt 50 until it completely falls into the lamination area. Figures 30-35 As shown, the feeding end 51 of the first sheet stack feeding mechanism moves from its end position toward its starting position, during which the sheet 2 gradually separates from the feeding belt 50.

[0194] (5) Continue to drive the feeding end 51 toward its starting position until the feeding end 51 returns to its starting position. Figure 36 As shown, the feeding end 51 of the first sheet stack feeding mechanism has reached its starting position.

[0195] Furthermore, in order to enable the sheet positioning mechanism to position the end of the sheet 2 in the lamination area, the following two methods can be used:

[0196] The first method: in step (2), when the sheet 2 is fed to the feed end 51, the end of the sheet 2 is exposed outside the feed end 51; in step 3), the sheet positioning mechanism is used to position the end of the sheet exposed outside the feed end in the stacking area.

[0197] The second method: in step (3), when the feeding end 51 reaches its end position, the feeding control mechanism is used to drive the sheet 2 to move so that the end of the sheet 2 is exposed outside the feeding end, and then the sheet positioning mechanism is used to position the end of the sheet exposed outside the feeding end in the stacking area.

[0198] That is, both methods can make the end of the sheet 2 exposed outside the feeding end 51, so that the sheet positioning mechanism can be used to position the end of the sheet exposed outside the feeding end in the stacking area, and the sheet positioning member 37 can be used to press the end of the sheet exposed outside the feeding end into the stacking area.

[0199] Example 2

[0200] like Figure 37 FIG. 1 is a schematic diagram of the structure of a continuous reciprocating folding mechanism according to an embodiment 2 of the present invention. The continuous reciprocating folding mechanism according to this embodiment comprises:

[0201] Lamination table 10;

[0202] A reciprocating folding mechanism, used for reciprocatingly folding the strip material 1 on the lamination table 10;

[0203] The folding positioning mechanism is used to control the positions of both ends of the strip 1 during its reciprocating folding.

[0204] The reciprocating folding mechanism includes a folding guide mechanism and a folding drive mechanism; the folding guide mechanism includes a swing arm 11, the two ends of the swing arm 11 are respectively a moving end 111 and a swinging end 112, the moving end 111 of the swing arm 11 can rotate relative to a rotating shaft 12, and the swinging end 112 is provided with a first guide roller group 13 for guiding the strip 1, the folding drive mechanism includes a driving component for driving the moving end 111 of the swing arm 11 to move along a preset track 14 and a swinging component for driving or guiding the swing arm 11 to rotate around the rotating shaft 12, the preset track 14 includes at least one vertical track perpendicular to the stacking table 10; the first guide roller group 13 reciprocates relative to the stacking table 10 under the combined action of the linear motion of the swing arm moving end 111 in a direction perpendicular to the stacking table 10 and the rotational motion of the swing arm 11 around the rotating shaft 12, so as to fold the strip 1 back and forth on the stacking table 10.

[0205] The preset track of this embodiment includes two vertical tracks perpendicular to the laminating table 10, and the two vertical tracks are connected by an arc track at one end away from the laminating table. Figure 37 As shown; or two vertical tracks are connected by arc tracks at both ends, such as Figure 38 As shown in the figure, the two vertical tracks in this embodiment are connected by a circular arc track at the ends away from the stacking platform. During the folding process, the movable end 111 of the swing arm 11 follows the preset track. Since the two vertical tracks are parallel to each other, when the swing arm 11 is perpendicular to the stacking platform 10, the linear velocity of the movable end 111 of the swing arm 11 is parallel to the stacking platform 10, thus avoiding the swing arm 11 from swinging in a dead angle.

[0206] The other implementations of this embodiment are the same as those of embodiment 1 and will not be described again.

[0207] The above embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A continuous reciprocating folding mechanism, characterized in that: include: Lamination table; A reciprocating folding mechanism, used for reciprocatingly folding the strip material on the lamination table; A folding positioning mechanism for controlling the positions of both ends of the strip during its reciprocating folding; The reciprocating folding mechanism includes a folding guide mechanism and a folding drive mechanism; the folding guide mechanism includes a swing arm, the two ends of the swing arm are respectively a moving end and a swinging end, the moving end of the swing arm can rotate relative to a rotating shaft, and the swinging end is provided with a first guide roller group for guiding the strip material; the folding drive mechanism controls the relative movement distance of the swinging end and the first guide roller group and the stacking table, and includes a driving component for driving the moving end of the swing arm to move along a preset track and a swinging component for driving or guiding the swing arm to rotate around the rotating shaft; the preset track includes at least one vertical track perpendicular to the stacking table; the first guide roller group moves back and forth relative to the stacking table under the combined action of the linear motion of the moving end of the swing arm perpendicular to the direction of the stacking table and the rotational motion of the swing arm around the rotating shaft, so as to fold the strip material back and forth on the stacking table.

2. The continuous reciprocating folding mechanism according to claim 1, characterized in that: The preset track includes a vertical track perpendicular to the stacking platform. A movable slider that slides in cooperation with the vertical track is provided in the vertical track. The movable end of the swing arm is rotationally engaged with the movable slider via the rotating shaft.

3. The continuous reciprocating folding mechanism according to claim 1, characterized in that: The preset track includes two vertical tracks perpendicular to the stacking platform, and the ends of the two vertical tracks away from the stacking platform are connected by an arc track; or the ends of the two vertical tracks are respectively connected by an arc track.

4. The continuous reciprocating folding mechanism according to claim 1, characterized in that: The swing assembly includes a swing track, and a slider is provided on the swing arm. The slider slides with the swing track and can rotate relative to the swing track; or the swing assembly includes a swing control motor for controlling the swing arm to rotate around the rotating shaft.

5. The continuous reciprocating folding mechanism according to claim 1, characterized in that: The swing end of the swing arm is provided with a first roller frame, and the first guide roller group is installed on the first roller frame; the first roller frame is fixedly installed on the swing arm, or the first roller frame and the swing arm are rotationally matched.

6. The continuous reciprocating folding mechanism according to claim 5, characterized in that: The first guide roller group includes two first guide rollers arranged opposite to each other, and a first symmetry plane parallel to the axis of the two first guide rollers is provided between the two first guide rollers; when the first roller frame is fixedly mounted on the swing arm, the axis of the rotating shaft falls on the first symmetry plane; when the first roller frame and the swing arm rotate in coordination, the axis of the first rotating shaft of the first roller frame rotating relative to the swing arm falls on the first symmetry plane.

7. The continuous reciprocating folding mechanism according to claim 5 or 6, characterized in that: When the first roller frame and the swing arm are in rotational cooperation, a posture control motor for controlling the rotation angle of the first roller frame relative to the swing arm is installed on the swing arm.

8. The continuous reciprocating folding mechanism according to claim 1, characterized in that: It also includes a second guide roller group for guiding the strip to the first guide roller group; the movable end of the swing arm is provided with a second roller frame, and the second guide roller group is installed on the second roller frame; or, the second guide roller group is fixed relative to the preset track.

9. The continuous reciprocating folding mechanism according to claim 8, characterized in that: The second guide roller group is installed on the second roller frame. The second guide roller group includes two second guide rollers arranged opposite to each other. A second symmetry plane parallel to the axes of the two second guide rollers is provided between the two second guide rollers. The axis of the rotating shaft falls on the second symmetry plane.

10. The continuous reciprocating folding mechanism according to claim 1, characterized in that: The folding and positioning mechanism comprises a positioning rod, a positioning pressure needle or a positioning pressure block respectively located at two end positions of the strip material for reciprocating folding.

11. The continuous reciprocating folding mechanism according to claim 1, characterized in that: It also includes a strip material caching mechanism, which includes fixed rollers located on both sides, a movable roller and a tension mechanism for driving the movable roller to move to control the tension of the strip material are provided between the fixed rollers on both sides, and the strip material enters the reciprocating folding mechanism after passing through the caching mechanism.

12. The continuous reciprocating folding mechanism according to claim 1, characterized in that: It also includes a lamination table moving drive mechanism for driving the lamination table to move along a direction perpendicular to its table surface.

13. The continuous reciprocating folding mechanism according to claim 1, characterized in that: The movable end of the swing arm is located above or below the lamination platform, and the swing end of the swing arm is located above the lamination platform.

14. The continuous reciprocating folding mechanism according to any one of claims 2, 6, 8-13, characterized in that: The trajectory of the center of the first guide roller group moving relative to the lamination platform is a straight line parallel to the lamination platform.

15. A continuous reciprocating folding method, characterized in that: The steps include: 1) Position the swing end of the swing arm and the first guide roller assembly at the end of the first end of the strip material's reciprocating folding motion, and use the folding positioning mechanism to press and secure the strip material at the first end. A plane passing through the axis of the rotating shaft and perpendicular to the lamination table is used as a reference plane, and the angle between the swing arm and the reference plane reaches its maximum positive value at this point. 2) The linear drive assembly is used to drive the movable end of the swing arm to move away from the laminating table. At the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotating axis, so that the angle between the swing arm and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotating axis, the swing end of the swing arm moves relative to the laminating table toward the second end of the strip folding; 3) When the angle between the swing arm and the reference plane decreases to zero, the distance between the movable end of the swing arm and the stacking table reaches its maximum value; thereafter, the movable end of the swing arm is driven by the linear drive assembly to move toward the stacking table, and at the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotation axis, so that the angle between the swing arm and the reference plane increases in the opposite direction. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotation axis, the swing end of the swing arm continues to move relative to the stacking table toward the second end of the strip folding; 4) When the swing end of the swing arm and the first guide roller group reach the end position of the second end of the strip material folding back and forth, the angle between the swing arm and the reference plane reaches the reverse maximum value, and the folding positioning mechanism is used to press and fix the strip material at the second end; 5) The linear drive assembly is used to drive the movable end of the swing arm to move away from the stacking table. At the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotating axis, so that the angle between the swing arm and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotating axis, the swing end of the swing arm moves relative to the stacking table toward the first end of the strip folding; 6) When the angle between the swing arm and the reference plane decreases to zero, the distance between the movable end of the swing arm and the stacking table reaches its maximum value; thereafter, the movable end of the swing arm is driven by the linear drive assembly to move toward the stacking table, and at the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotation axis, so that the angle between the swing arm and the reference plane increases in the positive direction. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotation axis, the swing end of the swing arm continues to move relative to the stacking table toward the first end of the strip reciprocating folding; 7) When the swing end of the swing arm and the first guide roller group reach the end position of the first end of the strip material folding back and forth, the angle between the swing arm and the reference plane reaches the maximum positive value, and the folding positioning mechanism is used to press and fix the strip material at the first end; 8) Repeat steps 2 to 7 until the strip is folded.

16. The continuous reciprocating folding method according to claim 15, characterized in that: In step 4) and step 7), when the swing end of the swing arm and the first guide roller group reach the end position of the first end or the second end of the reciprocating folding of the strip, the first guide roller group is driven to move toward the lamination table to reduce the distance between the first guide roller group and the lamination table, so that the strip on the first guide roller group is in contact with the folded strip below it, and then the folding positioning mechanism is used to press and fix the strip; when the strip is pressed and fixed by the folding positioning mechanism, the first guide roller group is driven to move back to the lamination table to increase the distance between the first guide roller group and the lamination table, so that the first guide roller group returns to the preset position.

17. The continuous reciprocating folding method according to claim 16, characterized in that: In the process of driving the first guide roller group to move toward or away from the stacking platform, the moving end of the swing arm moves synchronously with the first guide roller group; or, the swing arm rotates a set angle relative to the rotating shaft to control the guide roller group to move toward or away from the stacking platform.

18. The continuous reciprocating folding method according to claim 15, characterized in that: A first roller frame is provided at the swing end of the swing arm, and the first guide roller group is mounted on the first roller frame; the first roller frame and the swing arm are rotationally engaged, and a posture control motor is mounted on the swing arm for controlling the rotation angle of the first roller frame relative to the swing arm; In the above steps 4) and 7), after the swing end of the swing arm and the first guide roller group reach the end position of the first end or the second end of the reciprocating folding of the strip, the posture control motor is used to control the first roller frame to rotate relative to the swing arm to reduce the distance between the first guide roller group and the lamination table, so that the strip on the first guide roller group fits with the folded strip located below it, and then the folding positioning mechanism is used to press and fix the strip; after the strip is pressed and fixed by the folding positioning mechanism, the posture control motor is used to control the first roller frame to rotate and reset relative to the swing arm, so that the first guide roller group returns to the preset position.

19. The continuous reciprocating folding method according to claim 15, characterized in that: In the steps 2), 3), 5) and 6), the center of the first guide roller group is moved along a straight line parallel to the lamination table.

20. The continuous reciprocating folding method according to claim 15, characterized in that: A first roller frame is provided at the swing end of the swing arm, and the first guide roller group is mounted on the first roller frame; the first roller frame and the swing arm are rotationally engaged, and a posture control motor is mounted on the swing arm for controlling the rotation angle of the first roller frame relative to the swing arm; In the steps 2), 3), 5) and 6), the attitude control motor is used to control the angle of the first roller frame relative to the swing arm, thereby achieving control of the attitude of the first guide roller group.

21. The continuous reciprocating folding method according to claim 20, characterized in that: The first guide roller group includes two first guide rollers arranged opposite to each other, and the angle of the first roller frame relative to the swing arm is controlled by a posture control motor so that the plane where the axes of the two first guide rollers are located remains parallel to the lamination table.

22. The continuous reciprocating folding method according to claim 15, characterized in that: It also includes a lamination table moving drive mechanism for driving the lamination table to move in a direction perpendicular to its table surface; After the first roller group moves a set number of n times between the first and second ends of the folded strip, the stacking table moving drive mechanism drives the stacking table to move a distance s in the direction away from the first guide roller group, and s=n*h, h is the thickness of the strip, and n≥1.

23. A continuous reciprocating lamination mechanism, characterized in that: It comprises a continuous reciprocating folding mechanism and a sheet stacking feeding mechanism as described in any one of claims 1 to 14, wherein the sheet stacking feeding mechanism is used to convey sheet-shaped sheets and stack the sheets on the strip in sequence after each folding of the strip.

24. The continuous reciprocating lamination mechanism according to claim 23, characterized in that: A lamination area is formed between the two ends of the strip material that is folded back and forth. The sheet lamination feeding mechanism includes a sheet material feeding mechanism for conveying the sheet material to the lamination area and a sheet material positioning mechanism for positioning the sheet material in the set lamination area.

25. The continuous reciprocating lamination mechanism according to claim 24, characterized in that: The sheet material feeding mechanism comprises: A feeding belt, wherein at least one end of the feeding belt is set as a feeding end; a feed drive mechanism for driving the feed end to move back and forth between its starting position and end position; when both ends of the feed belt are set as feed ends, the starting positions of the two feed ends are respectively located at opposite ends of the lamination area; and: When the feeding end is at its starting position, the feeding end is outside the lamination area and close to one end of the lamination area; when the feeding end is at its end position, the feeding end is inside the lamination area and close to the other end of the lamination area; The feeding control mechanism is used to make the sheet material move synchronously with the feeding belt when the feeding end moves from its starting position to the end position, and to make the sheet material detach from the feeding belt when the feeding end moves from its end position to the starting position.

26. The continuous reciprocating lamination mechanism according to claim 24, characterized in that: The sheet positioning mechanism includes a sheet positioning member, which is arranged at an end position close to the corresponding feeding end, and the sheet positioning member includes a sheet pressing rod, a sheet pressing needle or a sheet pressing block.

27. A continuous reciprocating lamination method, characterized in that: The steps include: 1) Position the swing end of the swing arm and the first guide roller assembly at the end of the first end of the strip material's reciprocating folding motion, and use the folding positioning mechanism to press and secure the strip material at the first end. A plane passing through the axis of the rotating shaft and perpendicular to the lamination table is used as a reference plane, and the angle between the swing arm and the reference plane reaches its maximum positive value at this point. 2) The linear drive assembly is used to drive the movable end of the swing arm to move away from the laminating table. At the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotating axis, so that the angle between the swing arm and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotating axis, the swing end of the swing arm moves relative to the laminating table toward the second end of the strip folding; 3) When the angle between the swing arm and the reference plane decreases to zero, the distance between the movable end of the swing arm and the stacking table reaches its maximum value; thereafter, the movable end of the swing arm is driven by the linear drive assembly to move toward the stacking table, and at the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotation axis, so that the angle between the swing arm and the reference plane increases in the opposite direction. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotation axis, the swing end of the swing arm continues to move relative to the stacking table toward the second end of the strip folding; 4) When the swing end of the swing arm and the first guide roller group reach the end position of the second end of the strip material folding back and forth, the angle between the swing arm and the reference plane reaches the reverse maximum value, and the folding positioning mechanism is used to press and fix the strip material at the second end; 5) Using the sheet stacking feeding mechanism to stack the sheet material on the belt material; 6) The linear drive assembly is used to drive the movable end of the swing arm to move away from the laminating table. At the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotating axis, so that the angle between the swing arm and the reference plane is reduced. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotating axis, the swing end of the swing arm moves relative to the laminating table toward the first end of the strip folding; 7) When the angle between the swing arm and the reference plane decreases to zero, the distance between the movable end of the swing arm and the stacking table reaches its maximum value; thereafter, the movable end of the swing arm is driven by the linear drive assembly to move toward the stacking table, and at the same time, the swing drive assembly is used to drive the swing arm to rotate around the rotation axis, so that the angle between the swing arm and the reference plane increases in the positive direction. Under the combined action of the linear motion of the movable end of the swing arm and the rotational motion of the swing arm around the rotation axis, the swing end of the swing arm continues to move relative to the stacking table toward the first end of the strip reciprocating folding; 8) When the swing end of the swing arm and the first guide roller group reach the end position of the first end of the strip material folding back and forth, the angle between the swing arm and the reference plane reaches the maximum positive value, and the folding positioning mechanism is used to press and fix the strip material at the first end; 9) Using the sheet stacking feeding mechanism to stack the sheet material on the belt material; 10) Repeat steps 2 to 9 until the strip is folded.

28. The continuous reciprocating lamination method according to claim 27, characterized in that: In step 4) and step 8), when the swing end of the swing arm and the first guide roller group reach the end position of the first end or the second end of the reciprocating folding of the strip, the first guide roller group is driven to move toward the lamination table to reduce the distance between the first guide roller group and the lamination table, so that the strip on the first guide roller group is in contact with the folded strip below it, and then the folding positioning mechanism is used to press and fix the strip; when the strip is pressed and fixed by the folding positioning mechanism, the first guide roller group is driven to move back to the lamination table to increase the distance between the first guide roller group and the lamination table, so that the first guide roller group returns to the preset position.

29. The continuous reciprocating lamination method according to claim 28, characterized in that: In the process of driving the first guide roller group to move toward or away from the stacking platform, the moving end of the swing arm moves synchronously with the first guide roller group; or, the swing arm rotates a set angle relative to the rotating shaft to control the guide roller group to move toward or away from the stacking platform.

30. The continuous reciprocating lamination method according to claim 27, characterized in that: A first roller frame is provided at the swing end of the swing arm, and the first guide roller group is mounted on the first roller frame; the first roller frame and the swing arm are rotationally engaged, and a posture control motor is mounted on the swing arm for controlling the rotation angle of the first roller frame relative to the swing arm; In step 4) and step 8), when the swing end of the swing arm and the first guide roller group reach the end position of the first end or the second end of the reciprocating folding of the strip, the posture control motor is used to control the first roller frame to rotate relative to the swing arm to reduce the distance between the first guide roller group and the lamination table, so that the strip on the first guide roller group fits with the folded strip located below it, and then the folding positioning mechanism is used to press and fix the strip; when the strip is pressed and fixed by the folding positioning mechanism, the posture control motor is used to control the first roller frame to rotate and reset relative to the swing arm, so that the first guide roller group returns to the preset position.

31. The continuous reciprocating lamination method according to claim 27, characterized in that: In steps 2), 3), 6) and 7), the center of the first guide roller group is moved along a straight line parallel to the lamination table.

32. The continuous reciprocating lamination method according to claim 27, characterized in that: A first roller frame is provided at the swing end of the swing arm, and the first guide roller group is mounted on the first roller frame; the first roller frame and the swing arm are rotationally engaged, and a posture control motor is mounted on the swing arm for controlling the rotation angle of the first roller frame relative to the swing arm; In the steps 2), 3), 6) and 7), the attitude control motor is used to control the angle of the first roller frame relative to the swing arm, thereby achieving control of the attitude of the first guide roller group.

33. The continuous reciprocating lamination method according to claim 32, characterized in that: The first guide roller group includes two first guide rollers arranged opposite to each other, and the angle of the first roller frame relative to the swing arm is controlled by a posture control motor so that the plane where the axes of the two first guide rollers are located remains parallel to the lamination table.

34. The continuous reciprocating lamination method according to claim 27, wherein: It also includes a lamination table moving drive mechanism for driving the lamination table to move in a direction perpendicular to its table surface; After the first roller group moves the set N times between the first end and the second end of the folded strip, the stacking table moving drive mechanism is used to drive the stacking table to move a distance S in the direction away from the first guide roller group, and S=N*H, H is the sum of the thickness of a layer of strip and a layer of sheet, and N≥1.

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