Composite flaking device

Abstract

The utility model discloses a composite flaking device which comprises a first unwinding mechanism, a second unwinding mechanism, a third unwinding mechanism and a fourth unwinding mechanism, and the first unwinding mechanism is used for releasing a first material belt; the at least one second unwinding mechanism is used for releasing a second material belt; the at least one cutter mechanism is arranged at the downstream of the second unwinding mechanism, and the cutter mechanism is used for cutting a second material belt to form a first material mold and a plurality of second sub material belt sections; the first composite roller set is arranged on the downstream of the first unwinding mechanism and the downstream of the second unwinding mechanism, the first material belt and the second sub-material belt section pass through the first composite roller set, and the second sub-material belt section is composited on the first material belt to form a first composite material belt. According to the technical scheme provided by the invention, the lithium foil can be prevented from being wasted, so that the cost can be saved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery production, and particularly relates to a composite sheet manufacturing device. BACKGROUND

[0002] The copper-lithium composite negative electrode is a new type of negative electrode material and has a wide application prospect in the field of lithium ion batteries. In the lamination core manufacturing mode, it is particularly important to obtain a copper-lithium composite film with a specified length-width specification.

[0003] In the prior art, the traditional copper-lithium composite scheme usually composites a continuous lithium foil with a continuous copper foil, and removes the excess lithium foil layer through post-cutting, so as to obtain a composite material belt with a preset size specification. This kind of mode has more waste of lithium foil material and poor economy. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiment of the application is to provide a composite sheet manufacturing device.

[0005] According to a first aspect of the embodiment of the application, a composite sheet manufacturing device is provided, comprising:

[0006] A first unwinding mechanism is configured to release a first material belt.

[0007] At least one second unwinding mechanism is configured to release a second material belt.

[0008] At least one cutter mechanism is arranged downstream of the second unwinding mechanism, and is configured to cut the second material belt to form a first material mold and a plurality of second sub-material belt segments.

[0009] A first composite roller group is arranged downstream of the first unwinding mechanism and the second unwinding mechanism, and the first material belt and the second sub-material belt segment pass through the first composite roller group. The second sub-material belt segment is compounded on the first material belt to form a first composite material belt.

[0010] Optionally, the cutter mechanism comprises a cutter assembly and a driving roller. The second material belt passes through the cutter assembly and the driving roller. The cutter assembly is configured to cut the second material belt.

[0011] The linear speed of the driving roller is less than the linear speed of the first composite roller group.

[0012] Optionally, the composite sheet manufacturing device further comprises a conveying mechanism. The conveying mechanism is located between the cutter mechanism and the first composite roller group, and is configured to convey the plurality of second sub-material belt segments to the first composite roller group.

[0013] Optionally, the conveying mechanism comprises a first conveying assembly, a second conveying assembly and a carrying assembly, the first conveying assembly and the second conveying assembly are arranged in sequence, the first conveying assembly is close to the first unwinding mechanism, the second conveying assembly is close to the first composite roller group, and the carrying assembly is used to move the second sub-belt segment on the first conveying assembly to the second conveying assembly.

[0014] Optionally, the conveying mechanism further comprises a limiting roller group, the limiting roller group is located between the second conveying assembly and the first composite roller group.

[0015] The limiting roller group comprises a first compression roller and a second compression roller, the first compression roller and the second compression roller are arranged at intervals and form a first gap, the first composite roller group comprises a third compression roller and a fourth compression roller, the third compression roller and the fourth compression roller are arranged at intervals and form a second gap, and the first gap and the second gap are located in the same horizontal plane.

[0016] Optionally, the composite tablet making device further comprises at least one first winding mechanism, the first winding mechanism is arranged between the cutter mechanism and the first composite roller group, and the first winding mechanism is used to wind the first material mold.

[0017] Optionally, the composite tablet making device further comprises a second composite roller group and at least one third unwinding mechanism, the second composite roller group is arranged downstream of the first composite roller group, the third unwinding mechanism is arranged between the first composite roller group and the second composite roller group, and the third unwinding mechanism is used to release a second material mold, and the second material mold is compounded with the first composite belt through the second composite roller group.

[0018] Optionally, the second composite roller group comprises a fifth compression roller, a sixth compression roller and a driving member, the fifth compression roller and the sixth compression roller are arranged at intervals.

[0019] The driving end of the driving member is connected with the fifth compression roller, and the driving member can drive the fifth compression roller to approach or move away from the sixth compression roller; or

[0020] The driving end of the driving member is connected with the sixth compression roller, and the driving member can drive the sixth compression roller to approach or move away from the fifth compression roller.

[0021] Optionally, the composite tablet making device further comprises a detection mechanism and a control mechanism, the detection mechanism is arranged upstream of the second composite roller group, the detection mechanism is communicatively connected with the control mechanism, and the driving member is communicatively connected with the control mechanism.

[0022] Optionally, the tablet-composite manufacturing device further comprises at least one second winding mechanism, the second winding mechanism is arranged downstream of the second composite roller group, and the second winding mechanism is used for winding the second material die and the third material die located on the first composite material belt to form a second composite material belt.

[0023] Optionally, the tablet-composite manufacturing device further comprises a third winding mechanism, the third winding mechanism is arranged downstream of the second winding mechanism, and the third winding mechanism is used for winding the second composite material belt.

[0024] Optionally, the tablet-composite manufacturing device further comprises an adjusting mechanism, the adjusting mechanism is arranged between the third winding mechanism and the second winding mechanism.

[0025] Optionally, the tablet-composite manufacturing device comprises:

[0026] Two second unwinding mechanisms, the two second unwinding mechanisms are arranged on two sides of the first unwinding mechanism.

[0027] Two cutter mechanisms, the two cutter mechanisms are arranged on two sides of the first unwinding mechanism, one of the cutter mechanisms is arranged downstream of one of the second unwinding mechanisms, and the other cutter mechanism is arranged downstream of the other second unwinding mechanism.

[0028] Optionally, the tablet-composite manufacturing device comprises two first winding mechanisms, the two first winding mechanisms are arranged on two sides of the first unwinding mechanism, one of the first winding mechanisms is arranged downstream of one of the cutter mechanisms, and the other first winding mechanism is arranged downstream of the other cutter mechanism.

[0029] Optionally, the tablet-composite manufacturing device comprises two third unwinding mechanisms, the two third unwinding mechanisms are arranged on two sides of the first unwinding mechanism.

[0030] Optionally, the tablet-composite manufacturing device comprises two second winding mechanisms, the two second winding mechanisms are arranged on two sides of the first unwinding mechanism.

[0031] One technical effect of the embodiment is that the cutter mechanism is arranged downstream of the second unwinding mechanism, the second sub-material belt segment is cut before being compressed, and the lithium foil layer that is not needed in the later stage is not cut, so that the lithium foil is not wasted, and the cost is saved.

[0032] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0034] Figure 1 A structure schematic diagram of the composite tablet making device in the embodiment of the present application;

[0035] Figure 2 A structure schematic diagram of the composite tablet making device in the embodiment of the present application;

[0036] Figure 3 A structure schematic diagram of the composite tablet making device in the embodiment of the present application;

[0037] Figure 4 A structure schematic diagram of the composite tablet making device in the embodiment of the present application;

[0038] Figure 5 A forming step diagram of the second composite material belt.

[0039] BRIEF DESCRIPTION OF DRAWINGS: composite tablet making device 100; first unwinding mechanism 1; second unwinding mechanism 2; cutter mechanism 3; driving roller 31; cutter assembly 32; first composite roller group 4; third compression roller 41; fourth compression roller 42; conveying mechanism 5; first conveying assembly 51; second conveying assembly 52; carrying assembly 53; limiting roller group 54; first compression roller 541; second compression roller 542; first winding mechanism 6; third unwinding mechanism 7; second composite roller group 8; fifth compression roller 81; sixth compression roller 82; detection mechanism 9; second winding mechanism 10; third winding mechanism 11; adjusting mechanism 12; guide roller group 13; first material belt 200; second material belt 300; first material mold 301; second sub-material belt segment 302; third material mold 3021; lithium foil 3022; second material mold 400. DETAILED DESCRIPTION

[0040] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.

[0041] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the application or its applications or uses.

[0042] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and devices can be viewed as part of the specification.

[0043] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0045] First, it should be noted that the X and Z directions mentioned in the embodiments of this application are referred to as... Figure 3 The directions are indicated. The X and Z directions intersect.

[0046] According to a first aspect of the embodiments of this application, a composite sheet making apparatus 100 is provided, including a first unwinding mechanism 1, at least one second unwinding mechanism 2, at least one cutting mechanism 3, and a first composite roller group 4; the first unwinding mechanism 1 is used to release a first strip 200; the second unwinding mechanism 2 is used to release a second strip 300; the cutting mechanism 3 is disposed downstream of the second unwinding mechanism 2, and the cutting mechanism 3 is used to cut the second strip 300 to form a first die 301 and a plurality of second sub-strip segments 302; the first composite roller group 4 is disposed downstream of the first unwinding mechanism 1 and the second unwinding mechanism 2, the first strip 200 and the second sub-strip segments 302 pass through the first composite roller group 4, and the second sub-strip segments 302 are composited with the first strip 200 to form a first composite strip.

[0047] like Figures 1-5 As shown, the composite film making device 100 includes a first unwinding mechanism 1, a second unwinding mechanism 2, a cutting mechanism 3, and a first composite roller group 4.

[0048] The first unwinding mechanism 1 is used to release the first strip 200, which can be copper foil; the second unwinding mechanism 2 is used to release the second strip 300, which includes a lithium foil 3022, a third die 3021 and a first die 301 stacked sequentially along the thickness direction of the second strip 300. The first die 301 and the third die 3021 can be made of polyethylene terephthalate plastic.

[0049] Further, the first composite roller group 4 is located downstream of the first unwinding mechanism 1 and the second unwinding mechanism 2, the cutting mechanism 3 is located downstream of the second unwinding mechanism 2 and upstream of the first composite roller group 4. Therefore, the first material belt 200 released by the first unwinding mechanism 1 passes through the first composite roller group 4, the second material belt 300 released by the second unwinding mechanism 2 passes through the cutting mechanism 3, the cutting mechanism 3 cuts the lithium foil 3022 layer and the third material belt 3021 of the second material belt 300 along the thickness direction of the second material belt 300, thereby forming a continuous first material belt 301 and a plurality of second material belt segments 302, the second material belt segments 302 pass through the first composite roller group 4 and are pressed on the first material belt 200 by the first composite roller group 4 to form a first composite material belt, and the plurality of second material belt segments 302 are arranged at intervals on the first material belt 200, so that a gap is formed between the adjacent two second material belt segments 302, thereby avoiding the need to cut out the excess lithium foil 3022 layer in the later stage, thereby avoiding the waste of lithium foil 3022 and saving costs.

[0050] As shown in Figure 1 and Figure 2 , in an optional embodiment, the cutting mechanism 3 includes a cutting assembly 32 and a driving roller 31, the second material belt 300 passes through the cutting assembly 32 and the driving roller 31, the cutting assembly 32 is used to cut the second material belt 300, and the linear speed of the driving roller 31 is less than the linear speed of the first composite roller group 4.

[0051] Further, the linear speed of the driving roller 31 is less than the linear speed of the first composite roller group 4, so that when the plurality of continuous second material belt segments 302 are pressed on the first material belt 200, a gap is formed between the adjacent two second material belt segments 302, thereby avoiding the need to cut out the excess lithium foil 3022 layer in the later stage, thereby avoiding the waste of lithium foil 3022 and saving costs.

[0052] As shown in Figure 3 and Figure 4 , in an optional embodiment, the composite tablet manufacturing device 100 further includes a conveying mechanism 5 located between the cutting mechanism 3 and the first composite roller group 4, and the conveying mechanism 5 is used to convey the plurality of second material belt segments 302 to the first composite roller group 4. The cutting mechanism 3 cuts the second material belt 300 into a continuous first material belt 301 and a plurality of second material belt segments 302, and the conveying mechanism 5 moves the second material belt segments 302 to the first composite roller group 4 to be compounded with the first material belt 200, wherein the moving speed of the conveying mechanism 5 is less than the linear speed of the first composite roller group 4, so that when the second material belt segments 302 are compounded on the first material belt 200, there is a gap between the adjacent two second material belt segments 302.

[0053] In an alternative embodiment, the conveying mechanism 5 comprises a first conveying assembly 51, a second conveying assembly 52 and a carrying assembly 53, the first conveying assembly 51 and the second conveying assembly 52 are arranged in sequence, the first conveying assembly 51 is close to the first unwinding mechanism 1, the second conveying assembly 52 is close to the first composite roller group 4, and the carrying assembly 53 is used to move the second sub-tape segment 302 on the first conveying assembly 51 to the second conveying assembly 52.

[0054] As shown in Figure 3 and Figure 4 , the conveying mechanism 5 comprises a first conveying assembly 51, a second conveying assembly 52 and a carrying assembly 53. After the second tape 300 is cut by the cutter mechanism 3, the second sub-tape segment 302 is conveyed to the first conveying assembly 51, the carrying assembly 53 moves the second sub-tape segment 302 on the first conveying assembly 51 to the second conveying assembly 52, and the second conveying assembly 52 moves the second sub-tape segment 302 to the second composite roller group 8. The spacing between the adjacent two second sub-tape segments 302 can be controlled by the carrying assembly 53.

[0055] Preferably, the first conveying assembly 51 comprises a plurality of conveying rollers arranged at intervals; the second conveying assembly 52 comprises a driving wheel, a driven wheel and a transmission belt, the driving wheel and the driven wheel are arranged at intervals, the transmission belt is sleeved on the driving wheel and the driven wheel, the second sub-tape segment 302 is located on the transmission belt, and the transmission belt rotates to move the second sub-tape segment 302 to the first composite roller group 4. Among them, the transmission belt is used for moving, and the moving process is relatively stable, which facilitates the second sub-tape segment 302 to enter the second gap between the third compression roller 41 and the fourth compression roller 42.

[0056] Preferably, the carrying assembly 53 comprises a driving assembly and a suction cup, the suction cup is connected with the driving end of the driving assembly, the driving assembly can drive the suction cup to move along the X direction and the Z direction, the first conveying assembly 51 and the second conveying assembly 52 are arranged at intervals along the X direction, and the moving direction of the first conveying assembly 51 and the second conveying assembly 52 is the X direction; the driving assembly drives the suction cup to move along the Z direction, so as to suck the second sub-tape segment 302 from the first conveying assembly 51 or place the second sub-tape segment 302 on the second conveying assembly 52, and the driving assembly drives the suction cup to move along the X direction, that is, reciprocate between the first conveying assembly 51 and the second conveying assembly 52.

[0057] In an alternative embodiment, as shown in Figure 3 and Figure 4As shown, the conveying mechanism 5 further comprises a limiting roller set 54 located between the second conveying assembly 52 and the first composite roller set 4; the limiting roller set 54 comprises a first compression roller 541 and a second compression roller 542 which are spaced apart and form a first gap, the first composite roller set 4 comprises a third compression roller 41 and a fourth compression roller 42 which are spaced apart and form a second gap, and the first gap and the second gap are located in the same horizontal plane. Thus, the second sub-belt segment 302 can be conveniently transferred into the second gap of the third compression roller 41 and the fourth compression roller 42, avoiding deviation of the second sub-belt segment 302 during the transfer process.

[0058] In an alternative embodiment, as shown in Figure 1 and Figure 2 As shown, when both sides of the copper foil need to be compounded with lithium foil 3022, the composite sheet manufacturing device 100 comprises two second unwinding mechanisms 2 and two cutter mechanisms 3, the two second unwinding mechanisms 2 are respectively arranged on the two sides of the first unwinding mechanism 1; the two cutter mechanisms 3 are respectively arranged on the two sides of the first unwinding mechanism 1, one of the cutter mechanisms 3 is located downstream of one of the second unwinding mechanisms 2, and the other cutter mechanism 3 is located downstream of the other second unwinding mechanism 2. The two second unwinding mechanisms 2 have the same structure and the same principle; the two cutter mechanisms 3 have the same structure and the same principle. The second sub-belt segments 302 of the second belts 300 released by the two second unwinding mechanisms 2 all pass through the first composite roller set 4, the second sub-belt segments 302 released by one of the second unwinding mechanisms 2 are compounded on one side of the first belt 200, and the second sub-belt segments 302 released by the other second unwinding mechanism 2 are compounded on the other side of the first belt 200.

[0059] In an alternative embodiment, the composite sheet manufacturing device 100 further comprises at least one first winding mechanism 6, which is arranged between the cutter mechanism 3 and the first composite roller set 4, and is used to wind the first material model 301.

[0060] As shown in Figures 1-4 The composite sheet manufacturing device 100 further comprises a first winding mechanism 6, which is located between the cutter mechanism 3 and the second composite roller set 8, and is used to wind the first material model 301 when the cutter mechanism 3 cuts the second belt 300 into the second sub-belt segment 302 and the continuous first material model 301 along the thickness direction of the second belt 300. Among them, the first material model 301 plays a role of isolation when the first sub-belt segment is cut off by the cutter assembly 32, avoiding direct contact between the lithium foil 3022 and the driving roller 31.

[0061] In an alternative embodiment, as shown in Figure 1 and Figure 2 When both sides of the copper foil need to be compounded with lithium foil 3022, the composite sheet manufacturing device 100 includes two first winding mechanisms 6, which are respectively arranged on the two sides of the first unwinding mechanism 1, one of the first winding mechanisms 6 is located downstream of one of the cutter mechanisms 3, and the other first winding mechanism 6 is located downstream of the other cutter mechanism 3. Therefore, one of the first winding mechanisms 6 is used to wind the first material model 301 of the second material belt 300 released by one of the second unwinding mechanisms 2, and the other winding mechanism is used to wind the first material model 301 of the second material belt 300 released by the other second unwinding mechanism 2.

[0062] In an alternative embodiment, the composite sheet manufacturing device 100 further includes a second composite roller group 8 and at least one third unwinding mechanism 7, the second composite roller group 8 is arranged downstream of the first composite roller group 4, and the third unwinding mechanism 7 is arranged between the first composite roller group 4 and the second composite roller group 8, the third unwinding mechanism 7 is used to release a second material model 400, and the second material model 400 is compounded with the first composite material belt through the second composite roller group 8.

[0063] As shown in Figures 1-4 , the composite sheet manufacturing device 100 further includes a second composite roller group 8 and a third unwinding mechanism 7, the second composite roller group 8 is arranged downstream of the first composite roller group 4, and the third unwinding mechanism 7 is arranged between the first composite roller group 4 and the second composite roller group 8; the third unwinding mechanism 7 is used to release a second material model 400, the second material model 400 can be made of polyethylene terephthalate plastic material, and the second material model 400 is pressed together with the first composite material belt passing through the second composite roller group 8, wherein the second material model 400 is in contact with the third material model 3021 of the second material belt segment 302, the second material model 400 and the third material model 3021 are made of the same material, and the adhesion between the third material model 3021 and the second material model 400 is greater than the adhesion between the third material model 3021 and the lithium foil 3022, thereby facilitating the peeling of the third material model 3021 through the second material model 400.

[0064] The third material model 3021 functions as an isolation when the second material belt segment 302 and the first material belt 200 are pressed together at the first composite roller group 4, the third material model 3021 is in contact with the first composite roller group 4, and the third material model 3021 functions as an isolation to avoid direct contact between the lithium foil 3022 and the first composite roller group 4.

[0065] In an alternative embodiment, as shown in Figure 1 and Figure 2As shown, when both sides of the copper foil need to be compounded with lithium foil 3022, the compound sheet manufacturing device 100 includes two third unwinding mechanisms 7, which are arranged on both sides of the first unwinding mechanism 1. The second material model 400 released by one of the third unwinding mechanisms 7 contacts the third material model 3021 of the second sub-material belt segment 302 on one side of the first compound material belt through the second compound roller set 8, and the second material model 400 released by the other third unwinding mechanism 7 contacts the third material model 3021 of the second sub-material belt segment 302 on the other side of the first compound material belt through the second compound roller set 8, so that the second material model 400 released by the two third unwinding mechanisms 7 can be peeled off from the third material model 3021 on both sides of the first compound material belt, respectively.

[0066] In an alternative embodiment, as shown in Figures 1-4 As shown, the second compound roller set 8 includes a fifth compression roller 81, a sixth compression roller 82, and a driving member, the fifth compression roller 81 is arranged apart from the sixth compression roller 82; the driving end of the driving member is connected with the fifth compression roller 81, and the driving member can drive the fifth compression roller 81 to move towards or away from the sixth compression roller 82; or the driving end of the driving member is connected with the sixth compression roller 82, and the driving member can drive the sixth compression roller 82 to move towards or away from the fifth compression roller 81.

[0067] Specifically, the fifth compression roller 81 and the second compression roller 542 are arranged apart, and a gap is formed between the fifth compression roller 81 and the sixth compression roller 82. When the compound sheet manufacturing device 100 starts to work or is about to end the work, the two sides of the first material belt 200 do not have the second sub-material belt segment 302 pressed when the first material belt 200 passes through the second compound roller set 8, the driving member drives the fifth compression roller 81 to move away from the second compression roller 542, thereby increasing the gap between the fifth compression roller 81 and the sixth compression roller 82, thereby facilitating the second material model 400 released by the third unwinding mechanism 7 to pass through the gap between the fifth compression roller 81 and the sixth compression roller 82; the two sides of the first material belt 200 are pressed with the second sub-material belt segment 302, and then pass through the gap between the fifth compression roller 81 and the sixth compression roller 82, the driving member drives the fifth compression roller 81 to move towards the sixth compression roller 82, thereby causing the fifth compression roller 81 and the sixth compression roller 82 to press the second material model 400 and the first compound material belt together. Alternatively, the driving end of the driving member is connected with the sixth compression roller 82 to drive the sixth compression roller 82 to move towards or away from the fifth compression roller 81, which can also achieve the above-mentioned effect, and the specific steps are not described again.

[0068] In an alternative embodiment, as shown in Figures 1-4As shown, the composite tablet making device 100 further comprises a detection mechanism 9 arranged upstream of the second composite roller group 8, and a control mechanism, the detection mechanism 9 being in communication connection with the control mechanism, and the driving member being in communication connection with the control mechanism. The detection mechanism 9 is used to detect whether there is a pressed second sub-belt segment 302 on the first belt 200. When the detection mechanism 9 detects that there is a pressed first sub-belt segment on the first belt 200, the detection mechanism 9 transmits a detection signal to the control mechanism, the control mechanism sends a working signal to the driving member, and the driving member drives the first pressing roller 541 to move towards the second pressing roller 542, so that the first pressing roller 541 and the second pressing roller 542 press the second die 400 and the first composite belt together. When the detection mechanism 9 detects that there is no pressed second sub-belt segment 302 on the first belt 200, the detection mechanism 9 transmits a detection signal to the control mechanism, the control mechanism sends a working signal to the driving member, and the driving member drives the first pressing roller 541 to move away from the second pressing roller 542, so as to increase the gap between the first pressing roller 541 and the second pressing roller 542, thereby avoiding pressing the second die 400 and the first belt 200 together and avoiding waste.

[0069] In an alternative embodiment, the composite tablet making device 100 further comprises at least one second winding mechanism 10 arranged downstream of the second composite roller group 8, the second winding mechanism 10 being used to wind the second die 400 and the third die 3021 located in the first composite belt, so as to form a second composite belt.

[0070] As shown in FIG. 1, Figures 1-4 The composite tablet making device 100 further comprises a second winding mechanism 10 arranged downstream of the second composite roller group 8. After the second composite roller group 8 presses the second die 400 and the first composite belt, the adhesion between the second die 400 and the third die 3021 is greater than the adhesion between the third die 3021 and the lithium foil 3022. Therefore, the second winding mechanism 10 is used to wind the second die 400, so that the third die 3021 in contact with the lithium foil 3022 can be peeled off through the second die 400, thereby forming a second composite belt, which only comprises a copper foil and a lithium foil 3022, so as to obtain a copper-lithium composite belt.

[0071] In an alternative embodiment, as shown in FIG. 1, Figure 1 and Figure 2As shown, when both sides of the copper foil need to be compounded with lithium foil 3022, the compound sheet manufacturing device 100 comprises two second winding mechanisms 10, which are arranged on both sides of the first unwinding mechanism 1. Therefore, one of the second winding mechanisms 10 is used to wind the second material mold 400 released by one of the third unwinding mechanisms 7, and the other second winding mechanism 10 is used to wind the second material mold 400 released by the other third unwinding mechanism 7.

[0072] In an alternative embodiment, as shown in Figures 1-4 As shown, the compound sheet manufacturing device 100 further comprises a third winding mechanism 11 arranged downstream of the second winding mechanism 10, and the third winding mechanism 11 is used to wind the second compound material tape.

[0073] In an alternative embodiment, as shown in Figures 1-4 As shown, the compound sheet manufacturing device 100 further comprises an adjusting mechanism 12 arranged between the third winding mechanism 11 and the second winding mechanism 10. The adjusting mechanism 12 is used to adjust the tension of the second compound material tape so as to facilitate the winding of the second compound material tape by the third winding mechanism 11.

[0074] In an alternative embodiment, the compound sheet manufacturing device 100 further comprises a guide roller set 13 arranged between the cutter mechanism 3 and the first compound roller set 4, and the guide roller set 13 is used to guide the second sub-material tape segment 302 so as to facilitate the transfer of the second sub-material tape segment 302 from the cutter mechanism 3 to the first compound roller set 4.

[0075] In an alternative embodiment, as shown in Figure 1 and Figure 2 As shown, when both sides of the copper foil need to be compounded with lithium foil 3022, the compound sheet manufacturing device 100 comprises two guide roller sets 13 arranged on both sides of the first unwinding mechanism 1, one of which is used to guide the second sub-material tape segment 302 cut by one of the cutter mechanisms 3, and the other is used to guide the second sub-material tape segment 302 cut by the other cutter mechanism 3.

[0076] As shown in Figure 5 The specific steps of forming the second compound material tape are as follows:

[0077] Step S0 is the initial state, the first material tape 200 and the second material tape 300 are in the unprocessed state, the first unwinding mechanism 1 releases the first material tape 200, and the second unwinding mechanism 2 releases the second material tape 300;

[0078] Step S1, the cutter mechanism 3 cuts the second material tape 200 to form a continuous first material die 301 and a plurality of second sub-material tape segments 302, the second sub-material tape segments 302 including lithium foils 3022 and third material dies 3021;

[0079] Step S2, the first composite roller group 4 composites the plurality of second sub-material tape segments 302 with the first material tape 200 to form a first composite material tape;

[0080] Step S3, the second composite roller group 8 composites the second material die 400 to the first composite material tape, that is, composites the second material die 400 with the plurality of third material dies 3021 together;

[0081] Step S4, the second winding mechanism 10 winds the second material die 400 and the plurality of third material dies 3021 to separate the second material die 400 from the plurality of third material dies 3021 to form a second composite material tape, the second composite material tape including the first material tape 200 and the plurality of lithium foils 3022.

[0082] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood that such examples are for illustrative purposes only and are not intended to limit the scope of the present application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A compound tabletting device, characterized by The composite tablet making device comprises: a first unwinding mechanism for releasing a first material strip; at least one second unwinding mechanism for releasing a second material strip; at least one cutter mechanism downstream of the second unwinding mechanism, the cutter mechanism being used for cutting the second material strip to form a first material mold and a plurality of second material strip segments; a first composite roller set downstream of the first unwinding mechanism and the second unwinding mechanism, the first material strip and the second material strip segments passing through the first composite roller set, the second material strip segments being compounded on the first material strip to form a first composite material strip.

2. The compound tablet making device of claim 1, wherein The cutter mechanism comprises a cutter assembly and a driving roller, the second material strip passing through the cutter assembly and the driving roller, the cutter assembly being used for cutting the second material strip; the linear speed of the driving roller is less than the linear speed of the first composite roller set.

3. The compound tablet making device of claim 1, wherein The composite tablet making device further comprises a conveying mechanism between the cutter mechanism and the first composite roller set, the conveying mechanism being used for conveying the plurality of second material strip segments to the first composite roller set.

4. The compound tablet making apparatus of claim 3 wherein, The conveying mechanism comprises a first conveying assembly and a second conveying assembly arranged in sequence, the first conveying assembly being close to the first unwinding mechanism, and the second conveying assembly being close to the first composite roller set, and a carrying assembly for moving the second material strip segments on the first conveying assembly to the second conveying assembly.

5. The compound tablet making apparatus of claim 4 wherein, The conveying mechanism further comprises a limiting roller set between the second conveying assembly and the first composite roller set; The limiting roller set comprises a first compression roller and a second compression roller arranged at intervals and forming a first gap, and the first composite roller set comprises a third compression roller and a fourth compression roller arranged at intervals and forming a second gap, and the first gap and the second gap are located on the same horizontal plane.

6. The compound tablet making device of claim 1, wherein The composite tablet making device further comprises at least one first winding mechanism between the cutter mechanism and the first composite roller set, the first winding mechanism being used for winding the first material mold.

7. The compound tablet making device of claim 1, wherein The composite tablet making device further comprises a second composite roller set downstream of the first composite roller set and at least one third unwinding mechanism between the first composite roller set and the second composite roller set, the third unwinding mechanism being used for releasing a second material mold, and the second material mold passing through the second composite roller set and being compounded with the first composite material strip.

8. The compound tablet making device of claim 7, wherein The second composite roller set comprises a fifth compression roller, a sixth compression roller and a driving member, the fifth compression roller and the sixth compression roller being arranged at intervals; a driving end of the driving member is connected with the fifth compression roller, and the driving member can drive the fifth compression roller to move close to or away from the sixth compression roller; or a driving end of the driving member is connected with the sixth compression roller, and the driving member can drive the sixth compression roller to move close to or away from the fifth compression roller.

9. The compound tablet making apparatus of claim 8 wherein, The composite tablet making device further comprises a detection mechanism arranged upstream of the second composite roller group, and a control mechanism, wherein the detection mechanism is communicatively connected to the control mechanism, and the driving member is communicatively connected to the control mechanism.

10. The compound tablet making apparatus of claim 7 wherein, The composite tablet making device further comprises at least one second winding mechanism arranged downstream of the second composite roller group, wherein the second winding mechanism is used for winding the second material mold and the third material mold located on the first composite material belt to form a second composite material belt.

11. The compound tablet making apparatus of claim 10 wherein, The composite tablet making device further comprises a third winding mechanism arranged downstream of the second winding mechanism, wherein the third winding mechanism is used for winding the second composite material belt.

12. The compound tablet making device of claim 11, wherein The composite tablet making device further comprises an adjusting mechanism arranged between the third winding mechanism and the second winding mechanism.

13. The compound tablet making device of claim 1, wherein The composite tablet making device comprises: Two second unwinding mechanisms, wherein the two second unwinding mechanisms are arranged on two sides of the first unwinding mechanism. Two cutter mechanisms, wherein the two cutter mechanisms are arranged on two sides of the first unwinding mechanism, one of the cutter mechanisms is arranged downstream of one of the second unwinding mechanisms, and the other cutter mechanism is arranged downstream of the other second unwinding mechanism.

14. The compound tablet making apparatus of claim 6 wherein, The composite tablet making device comprises two first winding mechanisms, wherein the two first winding mechanisms are arranged on two sides of the first unwinding mechanism, one of the first winding mechanisms is arranged downstream of one of the cutter mechanisms, and the other first winding mechanism is arranged downstream of the other cutter mechanism.

15. The compound tablet making apparatus of claim 7 wherein, The composite tablet making device comprises two third unwinding mechanisms, wherein the two third unwinding mechanisms are arranged on two sides of the first unwinding mechanism.

16. The compound tablet making apparatus of claim 10 wherein, The composite tablet making device comprises two second winding mechanisms, wherein the two second winding mechanisms are arranged on two sides of the first unwinding mechanism.

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