Rolling and slitting all-in-one machine for manufacturing battery pole piece

Abstract

The utility model belongs to the technical field of battery pole piece equipment, and particularly provides a rolling and slitting all-in-one machine for manufacturing a battery pole piece, which comprises an unwinding roller, a rolling device, a heating device, a traction roller, a slitting device and a winding roller which are sequentially arranged, the slitting device comprises two groups of cutters and a mounting frame, the two groups of cutters are respectively arranged at the upper end and the lower end of the electrode piece, and the mounting frame is arranged on the unwinding roller. The two ends of the two sets of cutters are rotationally connected with the mounting frame, each cutter comprises a rotating shaft, a plurality of circular blades, a threaded rod and a limiting sleeve, the two ends of each rotating shaft are rotationally connected with the mounting frame, the circular blades are slidably connected to the rotating shafts in a sleeving mode, adjusting holes are formed in the circular blades, the threaded rods are slidably installed in the adjusting holes, and the limiting sleeves are in threaded connection with the threaded rods. Through the arrangement of the rotating shaft, the circular blades, the threaded rods and the limiting sleeves arranged on the two sides of the circular blades, the distance between every two adjacent circular blades can be freely adjusted, and the cutter can conduct slicing work on electrode slices with different width requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pole piece equipment technical field relates to a kind of roll cutting integrated machine for battery pole piece manufacturing. BACKGROUND

[0002] In the front end manufacturing process of battery pole piece, roll and cutting process are essential. The roll press is an important equipment indispensable for battery to improve capacity, reduce internal resistance and ensure consistency. The pole piece increases the compaction density of the pole piece by roll pressing, and improves the consistency of the pole piece thickness. The cutting machine can be used for width cutting of ordinary lithium electrode and power battery pole piece. The production process includes pole piece roll unwinding, width cutting and winding after cutting.

[0003] At present, the ordinary commercial roll cutting integrated machine in the industry can roll and slit the lithium battery pole piece at the same time, so that the whole manufacturing process is shorter and more efficient. However, it still has some shortcomings, for example: the spacing between the slices of the conventional roll cutting integrated machine is not easy to adjust when in use, so a lot of time is wasted when cutting the pole piece with different width requirements. Moreover, the environmental humidity has an effect on the hygroscopicity of the pole piece. When the environmental humidity is too high, the pole piece will swell after roll pressing due to moisture absorption, which will affect the subsequent battery manufacturing process and battery performance. UTILITY MODEL CONTENTS

[0004] In view of the technical problems in the prior art, the utility model provides a roll cutting integrated machine for battery pole piece manufacturing, which comprises an unwinding roller, a roll device, a heating device, a traction roller, a cutting device and a winding roller arranged in sequence along the output direction of the electrode. The cutting device comprises two sets of cutting knives and a mounting bracket. The two sets of cutting knives are arranged at the upper and lower ends of the electrode respectively. The two ends of the two sets of cutting knives are rotatably connected to the mounting bracket by a motor. The cutting knife comprises a shaft, a plurality of circular blades, a threaded rod and a limiting sleeve arranged on both sides of the circular blade. The two ends of the shaft are rotatably connected to the mounting bracket. The plurality of circular blades are slidably sleeved on the shaft. The circular blade is provided with an adjusting hole. The threaded rod is slidably installed in the plurality of adjusting holes and extends out of the circular blade. The limiting sleeve is threadedly connected with the threaded rod and abuts against the end face of the circular blade.

[0005] Further, the center of the circular blade is provided with a through hole, and a plurality of clamping grooves are arranged in the through hole. A plurality of limiting teeth are arranged on the circumference of the shaft. The clamping grooves and the limiting teeth correspond one by one. The clamping grooves and the limiting teeth are in sliding fit.

[0006] Further, the threaded rod comprises two rods, and the two threaded rods are arranged on both sides of the shaft.

[0007] Further, the heating device comprises a drying box, a heating pipe and multiple groups of rotating rollers, the heating pipe is fixedly installed in the drying box and located above the electrode sheet, and the multiple groups of rotating rollers are arranged at intervals along the output direction of the electrode sheet and rotationally connected with the drying box.

[0008] Further, the heating device further comprises a fan and a ventilation cover, the fan is fixedly installed in the drying box and located above the heating pipe, and the ventilation cover is fixedly installed on the top of the drying box and communicates the inside and outside of the drying box.

[0009] Further, the mounting frame comprises two adjusting frames and two driving blocks, the two adjusting frames are arranged at the two ends of the rotating shaft respectively, two slide grooves are symmetrically arranged on the inner side of the adjusting frame, slide strips matched with the slide grooves are arranged on the two sides of the driving block, the two driving blocks are slidably connected with the slide grooves through the slide strips, adjusting pins are rotationally installed at the upper and lower ends of the adjusting frame, threaded holes are arranged at the ends of the two driving blocks away from each other, and one end of the adjusting pin is threadedly connected with the threaded hole, and the two ends of the rotating shaft are rotationally connected with the driving blocks through the motor.

[0010] Beneficial effects:

[0011] 1. In the utility model, through the setting of the rotating shaft, multiple circular blades, threaded rods and limiting sleeves arranged on the two sides of the circular blade, the distance between the two adjacent circular blades can be freely adjusted, so that the cutting knife can meet the slicing work of electrode sheets with different width requirements, the applicability and use efficiency of the roller pressing and slicing integrated machine for battery electrode sheet manufacturing are effectively improved, and specifically, when the distance between the circular blades needs to be adjusted, the limiting sleeve on one side is loosened, then the limiting sleeve on the other side is rotated, so that the circular blade can slide along the axis direction of the rotating shaft, and when the adjustment is completed, the two limiting sleeves are rotated to ensure that they are tightly attached to the two end faces of the circular blade.

[0012] 2. In the utility model, through the setting of the clamping groove and the limiting tooth, the relative rotation between the circular blade and the rotating shaft can be prevented, and the fixing effect between the two is improved; through the setting of the two threaded rods, the deflection of the circular blade during sliding can be effectively avoided, and the sliding of the circular blade is smoother.

[0013] 3. In the utility model, through the setting of the drying box, the heating pipe and the multiple groups of rotating rollers, the air humidity in the drying box can be reduced by using the heat generated by the heating pipe, the expansion of the electrode sheet due to moisture absorption can be prevented, and the stability of the electrode sheet is effectively improved; in combination with the setting of the fan and the ventilation cover, the heat generated by the heating pipe can be blown to the electrode sheet by the fan, the temperature difference before and after the electrode sheet is rolled can be reduced, the thermal expansion and cold shrinkage of the electrode sheet due to the excessively high temperature difference before and after the electrode sheet is rolled can be prevented, and the stability of the electrode sheet is further effectively improved.

[0014] 4、In the utility model, through the setting of two adjusting frames, two driving blocks and two adjusting pegs, the interval between the two driving blocks can be adjusted, so that the interval between the two sets of cutters can be adjusted, and then the electrode sheet with different thickness requirements can be sliced, specifically when the interval needs to be adjusted, the adjusting peg is only needed to be rotated in the clockwise or counterclockwise direction. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a cutter and mounting rack mounting structure schematic view of the utility model;

[0018] Figure 3 It is a cutter structure schematic view of the utility model;

[0019] Figure 4 It is a clamping groove and limiting tooth mounting structure schematic view of the utility model;

[0020] Figure 5 It is a mounting rack structure schematic view of the utility model;

[0021] Figure 6 It is a heating device structure schematic view of the utility model;

[0022] Figure 7 It is a heating device internal structure schematic view of the utility model.

[0023] Explanation of reference signs:

[0024] 1, electrode sheet;2, unwinding roller;3, heating device;4, roller pressing device;5, traction roller;6, slitting device;7, winding roller;8, cutter;9, adjusting frame;10, rotating shaft;11, circular blade;12, threaded rod;13, limiting sleeve;14, limiting tooth;15, clamping groove;16, adjusting hole;17, driving block;18, sliding groove;19, adjusting peg;20, sliding bar;21, drying box;22, ventilation cover;23, fan;24, heating pipe;25, rotating roller. DETAILED DESCRIPTION

[0025] In order to make the above objectives, features and advantages of the present application more clear and understandable, the detailed description of the embodiments of the present application is made below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in many different ways from what is described herein, and with many different combinations of elements, and the present application is not limited to the embodiments described herein below.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0028] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0030] It is to be understood that when an element such as a layer, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] The utility model provides a kind of roll cutting integrated machine for battery pole piece manufacturing, as shown in figure Figures 1 to 4 It includes unwinding roller 2, roll device 4, heating device 3, traction roller 5, cutting device 6 and winding roller 7 in order along the output direction of electrode sheet 1, the cutting device 6 includes two sets of cutter 8 and mounting bracket, two sets of cutter 8 are respectively arranged at the upper and lower ends of electrode sheet 1, and the two ends of two sets of cutter 8 are rotatably connected with mounting bracket, the cutter 8 includes shaft 10, multiple circular blades 11, threaded rod 12 and limiting sleeve 13 arranged on the two sides of circular blade 11, the two ends of shaft 10 are rotatably connected with mounting bracket, and multiple circular blades 11 are slidably sleeved on shaft 10, adjusting hole 16 is formed in circular blade 11, threaded rod 12 is slidably installed in multiple adjusting holes 16, and extends out of circular blade 11, to avoid that circular blade 11 is separated from threaded rod 12, stop sleeve can be arranged at the two ends of threaded rod 12, limiting sleeve 13 is threadedly connected with threaded rod 12, and abuts with the end face of circular blade 11.

[0032] In the embodiment, the interval between adjacent two circular blades 11 can be freely adjusted by the arrangement of shaft 10, multiple circular blades 11, threaded rod 12 and limiting sleeve 13 arranged on the two sides of circular blade 11, so that the cutter 8 can meet the slicing work of electrode sheet 1 with different width requirements, and the applicability and use efficiency of the roll cutting integrated machine for battery pole piece manufacturing are effectively improved, specifically, when it is necessary to adjust the interval of circular blade 11, only the limiting sleeve 13 on one side is loosened, and then the limiting sleeve 13 on the other side is rotated to make circular blade 11 slide along the axis direction of shaft 10, and when the adjustment is completed, the limiting sleeve 13 is rotated to ensure that the two limiting sleeves 13 are tightly attached to the two end faces of circular blade 11.

[0033] In the utility model, preferably, as Figure 2 , Figure 3 and Figure 4As shown, the center of the circular blade 11 is provided with a through hole, a plurality of clamping grooves 15 are arranged in the through hole, a plurality of limiting teeth 14 are arranged on the circumference of the rotating shaft 10, the clamping grooves 15 and the limiting teeth 14 are one-to-one corresponding, and the clamping grooves 15 and the limiting teeth 14 are in sliding fit.

[0034] In the embodiment, the relative rotation between the circular blade 11 and the rotating shaft 10 is prevented by the clamping grooves 15 and the limiting teeth 14, and the fixing effect between the two is improved.

[0035] In the utility model, preferably, as shown in Figure 3 As shown, the threaded rod 12 includes two, and the two threaded rods 12 are arranged on the two sides of the rotating shaft 10.

[0036] In the embodiment, the deflection of the circular blade 11 during sliding is effectively avoided by the two threaded rods 12, and the sliding is smoother.

[0037] In the utility model, preferably, as shown in Figure 1 、 Figure 6 and Figure 7 As shown, the heating device 3 includes a drying box 21, a heating pipe 24 and a plurality of groups of rotating rollers 25, the heating pipe 24 is fixedly installed in the drying box 21 and is located above the electrode sheet 1, a plurality of groups of the rotating rollers 25 are arranged at intervals along the output direction of the electrode sheet 1, and the rotating rollers 25 are rotationally connected with the drying box 21; the heating device 3 further includes a fan 23 and a ventilation cover 22, the fan 23 is fixedly installed in the drying box 21 and is located above the heating pipe 24, and the ventilation cover 22 is fixedly installed on the top of the drying box 21 and is in communication with the inside and outside of the drying box 21.

[0038] In the embodiment, the air humidity in the drying box 21 is reduced by the heat generated by the heating pipe 24, the expansion phenomenon of the electrode sheet 1 caused by moisture absorption is prevented, and the stability of the electrode sheet 1 is effectively improved by the arrangement of the drying box 21, the heating pipe 24 and the plurality of groups of rotating rollers 25; in combination with the arrangement of the fan 23 and the ventilation cover 22, the heat generated by the heating pipe 24 can be blown to the electrode sheet 1 by the fan 23, the temperature difference before and after the electrode sheet 1 is rolled can be reduced, the thermal expansion and contraction phenomenon of the electrode sheet 1 before and after rolling caused by the excessively high temperature difference can be prevented, and the stability of the electrode sheet 1 is further effectively improved.

[0039] In the utility model, preferably, as shown in Figure 1 、 Figure 2 and Figure 5As shown, the mounting frame comprises two adjusting frames 9 and two driving blocks 17, the two adjusting frames 9 are respectively arranged at two ends of the rotating shaft 10, the inner side of the adjusting frame 9 is symmetrically provided with two sliding grooves 18, the two sides of the driving block 17 are provided with sliding strips 20 matched with the sliding grooves 18, the two driving blocks 17 are slidably connected with the sliding grooves 18 through the sliding strips 20, the upper and lower ends of the adjusting frame 9 are both rotationally installed with adjusting pins 19, the ends of the two driving blocks 17 away from each other are both provided with threaded holes, one end of the adjusting pin 19 is threadedly connected with the threaded hole, and the two ends of the rotating shaft 10 are rotationally connected with the driving blocks 17 through motors.

[0040] In the embodiment, the interval between the two driving blocks 17 can be adjusted through the arrangement of the two adjusting frames 9, the two driving blocks 17 and the two adjusting pins 19, so that the interval between the two groups of cutting knives 8 can be adjusted, and then the electrode sheet 1 with different thickness requirements can be cut, and specifically, when the interval needs to be adjusted, the adjusting pin 19 only needs to be rotated in the clockwise or counterclockwise direction.

[0041] The technical features of the above-mentioned embodiments can be combined arbitrarily, in order to make the description simple, not all possible combinations of the technical features in the above-mentioned embodiments are described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0042] The above-mentioned embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A roll forming and slitting machine for manufacturing battery electrode sheets, comprising an unwinding roller (2), a roll forming device (4), a heating device (3), a traction roller (5), a slitting device (6), and a take-up roller (7) arranged sequentially along the output direction of the electrode sheet (1), wherein the slitting device (6) comprises two sets of cutters (8) and a mounting frame, the two sets of cutters (8) being respectively disposed at the upper and lower ends of the electrode sheet (1), and the two ends of the two sets of cutters (8) being rotatably connected to the mounting frame via a motor, characterized in that, The cutter (8) includes a rotating shaft (10), multiple circular blades (11), a threaded rod (12), and limiting sleeves (13) disposed on both sides of the circular blades (11). The two ends of the rotating shaft (10) are rotatably connected to the mounting bracket. The multiple circular blades (11) are slidably sleeved on the rotating shaft (10). The circular blades (11) are provided with adjustment holes (16). The threaded rod (12) is slidably installed in the multiple adjustment holes (16) and extends out of the circular blades (11). The limiting sleeves (13) are threadedly connected to the threaded rod (12) and abut against the end face of the circular blades (11).

2. The integrated roll pressing and slitting machine for manufacturing battery electrode sheets according to claim 1, characterized in that, The circular blade (11) has a through hole in the center, and multiple slots (15) are provided in the through hole. Multiple limiting teeth (14) are provided on the circumferential surface of the rotating shaft (10). The slots (15) and the limiting teeth (14) correspond one-to-one, and the slots (15) and the limiting teeth (14) slide together.

3. The integrated roll pressing and slitting machine for manufacturing battery electrode sheets according to claim 2, characterized in that, The threaded rod (12) includes two rods, which are arranged on both sides of the rotating shaft (10).

4. A roll forming and slitting machine for manufacturing battery electrodes according to any one of claims 1 to 3, characterized in that, The heating device (3) includes a drying chamber (21), a heating tube (24), and multiple sets of rotating rollers (25). The heating tube (24) is fixedly installed inside the drying chamber (21) and located above the electrode plate (1). The multiple sets of rotating rollers (25) are spaced apart along the output direction of the electrode plate (1), and the rotating rollers (25) are rotatably connected to the drying chamber (21).

5. A roll forming and slitting machine for manufacturing battery electrodes according to claim 4, characterized in that, The heating device (3) also includes a fan (23) and a ventilation hood (22). The fan (23) is fixedly installed inside the drying chamber (21) and located above the heating tube (24). The ventilation hood (22) is fixedly installed on the top of the drying chamber (21) and connects the inside and outside of the drying chamber (21).

6. The integrated roll pressing and slitting machine for manufacturing battery electrode sheets according to claim 1, characterized in that, The mounting bracket includes two adjusting brackets (9) and two driving blocks (17). The two adjusting brackets (9) are respectively set at both ends of the rotating shaft (10). The inner side of the adjusting bracket (9) is symmetrically provided with two sliding grooves (18). The two sides of the driving block (17) are provided with sliding strips (20) that cooperate with the sliding grooves (18). The two driving blocks (17) are slidably connected to the sliding grooves (18) through the sliding strips (20). Adjusting bolts (19) are rotatably installed at both the upper and lower ends of the adjusting bracket (9). The ends of the two driving blocks (17) that are far apart from each other are provided with threaded holes. One end of the adjusting bolt (19) is threadedly connected to the threaded hole. The two ends of the rotating shaft (10) are rotatably connected to the driving blocks (17) through a motor.

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