Laminating machine
By designing independent power source and motion control for each lamination assembly in the lamination machine, the problems of large load and slow response of the traditional lamination machine are solved, and more efficient lamination operation and smaller equipment are achieved volume.
Patent Information
- Application Number
- CN202323558486.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-25
AI Technical Summary
When the knife-pressing control mode of the traditional Z-type lamination machine improves the stacking efficiency, the power source load is large and the response is slow. Increasing the power source power will lead to an increase in the volume and weight of the equipment, an increase in the floor area, and a vertical motor. It is necessary to bear the horizontal direction of the power structure, resulting in further increase in the load.
A lamination machine is designed, in which each lamination assembly is driven by an independent power source, and the vertical and horizontal movements are controlled by the first and second power modules respectively, to avoid the power source bearing multi-directional loads at the same time and improve the power source. Efficiency and speed.
The movement of the laminated pressing tool module is controlled by independent power sources, the load of each power source is reduced, the stacking efficiency and acceleration are improved, the floor area of the whole machine is reduced, and the problem of excessive load of the power source is avoided.
Smart Images
Figure CN222320316U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of lithium battery production, and in particular to a stacking machine. Background Art
[0002] At present, the control mode of the press knife used on the stacking table of the traditional Z-type stacking machine is mainly the following method, that is, a servo motor plus a lead screw is used to drive the two press knives to move horizontally in the horizontal direction, and a servo motor plus a lead screw is used to drive the two press knives to move vertically in the vertical direction. The motor in the vertical direction not only has to bear the load of the two press knives, but also has to bear the load of the power structure in the horizontal direction. Therefore, if the traditional Z-type stacking machine's knife pressure control mode wants to continue to improve the stacking efficiency, the following problems will arise: Due to the improvement in stacking efficiency, the knife pressure speed and acceleration must also be increased accordingly, and therefore, the requirements for the power source will be higher. If the current pair of knife pressures are continued to be controlled in the horizontal or vertical direction synchronously, without increasing the power of the power source, there will be problems of heavy load and slow response. If a more powerful power source is to be selected, the size and weight of the power source will also increase, which will not only increase the footprint of the entire machine, but also because the motor in the vertical direction has to bear the load of the power structure in the horizontal direction, which will further increase the load on the power source. Utility Model Content
[0003] The embodiment of the present application provides a laminating machine, aiming to effectively solve the technical problem that the knife pressing control mode of the existing laminating machine cannot further improve the laminating efficiency.
[0004] To this end, an embodiment of the present application provides a stacking machine, comprising a stacking platform and two stacking devices, wherein the two stacking devices are relatively arranged on both sides of the stacking platform in a first horizontal direction, and each of the stacking devices comprises two stacking assemblies, wherein the two stacking assemblies are spaced apart on corresponding sides of the stacking platform in a second horizontal direction, and each of the stacking assemblies comprises a stacking press module, a first power module that only drives the stacking press module to rise and fall, and a second power module that only drives the stacking press module to move back and forth in the first horizontal direction, and the first horizontal direction and the second horizontal direction are arranged perpendicular to each other.
[0005] Optionally, in some embodiments of the present application, the first power module includes a lifting bracket and a lifting power structure that drives the lifting bracket to lift. The first end of the lifting bracket can be connected to the stacking cutter module in a transmission manner without affecting the back and forth movement of the stacking cutter module in the first horizontal direction, so that when the lifting power structure drives the lifting bracket to lift, the stacking cutter module can be driven to lift synchronously.
[0006] Optionally, in some embodiments of the present application, the lifting power structure includes a first screw rod and a first screw rod motor that drives the first screw rod to rotate, the first screw rod extends in a vertical direction, and the second end of the lifting bracket is threadedly connected to the first screw rod so that when the first screw rod motor drives the first screw rod to rotate, the lifting bracket is driven to lift and lower along the extension direction of the first screw rod.
[0007] Optionally, in some embodiments of the present application, the first end of the lifting bracket is transmission-connected to the lamination pressing die set through a linear bearing structure without affecting the back-and-forth movement of the lamination pressing die set in the horizontal first direction.
[0008] Optionally, in some embodiments of the present application, the lamination pressing die set is provided with a guide mounting hole extending through the first horizontal direction; the linear bearing structure comprises a guide tube and a bearing, one end of the guide tube is fastened to the first end of the lifting bracket, and the other end of the guide tube extends through the guide mounting hole along the first horizontal direction; the outer ring of the bearing is fixed in the guide mounting hole, and the inner ring of the bearing is slidably sleeved on the guide tube.
[0009] Optionally, in some embodiments of the present application, the second power module includes a horizontally movable bracket and a horizontally movable power structure for driving the horizontally movable bracket to move back and forth in the horizontal first direction. The first end of the horizontally movable bracket is transmission connected to the stacking cutter module without affecting the lifting of the stacking cutter module, so that when the horizontally movable power structure drives the horizontally movable bracket to move back and forth in the horizontal first direction, the stacking cutter module is synchronously driven to move back and forth in the horizontal first direction.
[0010] Optionally, in some embodiments of the present application, the horizontal moving power structure includes a second screw and a second screw motor that drives the second screw to rotate, the second screw extends along the horizontal first direction, and the second end of the horizontal moving bracket is threadedly connected to the second screw, so that when the second screw motor drives the second screw to rotate, the horizontal moving bracket is driven to move back and forth in the horizontal first direction along the extension direction of the second screw.
[0011] Optionally, in some embodiments of the present application, the first end of the horizontally movable bracket is provided with a guide rail extending in the vertical direction, and the lamination pressing module is slidably set on the guide rail to realize the transmission connection between the first end of the horizontally movable bracket and the lamination pressing module without affecting the lifting and lowering of the lamination pressing module.
[0012] Optionally, in some embodiments of the present application, the lamination press knife module includes a lamination press knife, a press knife mounting bracket and a module bracket, the first end of the module bracket is respectively transmission-connected to the first power module and the second power module, the second end of the module bracket is fixed to the lamination press knife via the press knife mounting bracket, and the lamination press knife is extended along the horizontal first direction.
[0013] Optionally, in some embodiments of the present application, the lamination press knife module further includes a buffer cylinder, which is installed at the second end of the module bracket, and the cylinder shaft of the buffer cylinder is installed and fixed to the lamination press knife through the press knife mounting bracket, so that the lamination press knife is extended along the horizontal first direction.
[0014] The stacking machine provided by the technical solution of the present application includes a stacking platform and two stacking devices, the two stacking devices are relatively arranged on both sides of the stacking platform in a first horizontal direction, and each stacking device includes two stacking assemblies, the two stacking assemblies are arranged at intervals on the corresponding sides of the stacking platform in a second horizontal direction, and each stacking assembly includes a stacking knife die set, a first power module that only drives the stacking knife die set to rise and fall, and a second power module that only drives the stacking knife die set to move back and forth in the first horizontal direction, and the first horizontal direction and the second horizontal direction are arranged perpendicular to each other. In this way, through the above-mentioned structural setting, the stacking knife die set of each stacking assembly, whether its vertical lifting movement or its back and forth movement in the first horizontal direction, is controlled by an independent power source (the first power module or the second power module), thereby greatly reducing the load of each power source. At the same time, since each independent power source (the first power module or the second power module) only needs to drive the corresponding stacking knife die set to move in the corresponding direction without having to load another power source (the first power module or the second power module) at the same time, its load is further reduced. It can be seen that the technical solution, which uses a power source to bear the load of a stacking cutter module, is conducive to further improving the speed and acceleration of the stacking cutter module, so that the stacking machine can better match the higher stacking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0016] Figure 1 A schematic side view of the structure of a laminating machine according to an embodiment of the present application;
[0017] Figure 2 for Figure 1 A schematic structural diagram of a laminating machine from a first axonometric perspective;
[0018] Figure 3 for Figure 1 A schematic structural diagram of the stacking machine shown in the second axonometric perspective.
[0019] Description of Figure Numbers:
[0020] 1. Laminating machine; 100. Laminating platform; 200. Laminating device; 210. Laminating assembly; 211. Laminating knife pressing module; 2111. Guide mounting hole; 2112. Laminating knife pressing module; 2113. Knife pressing mounting bracket; 2114. Module bracket; 2115. Buffer cylinder; 212. First power module; 2121. Lifting bracket; 2122. Lifting power structure; 213. Second power module; 2131. Horizontal moving bracket; 2132. Horizontal moving power structure.
[0021] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0023] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0024] In addition, the descriptions of "first", "second", etc. in this application are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0025] In one embodiment, Figure 1 and Figure 2As shown, an embodiment of the present application provides a stacking machine 1, which may specifically include a stacking platform 100 and two stacking devices 200, the two stacking devices 200 are relatively arranged on both sides of the stacking platform 100 in a first horizontal direction, and each stacking device 200 includes two stacking assemblies 210, the two stacking assemblies 210 are spaced apart on corresponding sides of the stacking platform 100 in a second horizontal direction, and each stacking assembly 210 includes a stacking knife die set 211, a first power module 212 that only drives the stacking knife die set 211 to rise and fall, and a second power module 213 that only drives the stacking knife die set 211 to move back and forth in a first horizontal direction, and the first horizontal direction and the second horizontal direction are arranged perpendicular to each other.
[0026] It can be understood that the stacking machine 1 of the present application can be specifically applied to the stacking operation of the electrode sheet in the lithium battery production process to realize the stacking operation of stacking multiple electrode sheets together. The first power module 212 mentioned above that only drives the stacking knife module 211 to rise and fall specifically refers to the first power module 212 only driving the stacking knife module 211 to rise and fall alone, rather than driving the stacking knife module 211 to rise and fall together with the second power module 213. Similarly, the second power module 213 mentioned above that only drives the stacking knife module 211 to move back and forth in the horizontal first direction specifically refers to the second power module 213 only driving the stacking knife module 211 to move back and forth in the horizontal first direction alone, rather than driving the stacking knife module 211 to move back and forth in the horizontal first direction together with the first power module 212.
[0027] In this way, the stacking machine 1 provided in the embodiment of the present application, through the above-mentioned structural setting, makes the stacking knife die set 211 of each stacking assembly 210, whether its vertical lifting movement or horizontal first direction back and forth movement, all are controlled by an independent power source (first power module 212 or second power module 213), thereby greatly reducing the load of each power source. At the same time, since each independent power source (first power module 212 or second power module 213) only needs to drive the corresponding stacking knife die set 211 to move in the corresponding direction without loading another power source (first power module 212 or second power module 213) at the same time, its load is further reduced. It can be seen that the technical solution, which bears the load of a stacking knife die set 211 through a power source, is conducive to continuing to improve the speed and acceleration of the stacking knife die set 211, so that the stacking machine 1 can better match a higher stacking efficiency.
[0028] In some examples, such as Figures 1 to 3As shown, the first power module 212 may specifically include a lifting bracket 2121 and a lifting power structure 2122 for driving the lifting bracket 2121 to move up and down. The first end of the lifting bracket 2121 may be connected to the lamination pressing die set 211 in a transmission manner without affecting the lamination pressing die set 211 to move back and forth in the horizontal first direction, so that when the lifting power structure 2122 drives the lifting bracket 2121 to move up and down, the lamination pressing die set 211 is synchronously driven to move up and down. It is understandable that the lifting bracket 2121 may specifically include a lifting bracket 2121 and a lifting power structure 2122 for driving the lifting bracket 2121 to move up and down. Figure 3 Thus, through the above-mentioned structural setting, when the lifting power structure 2122 drives the lifting bracket 2121 to lift, it can simultaneously drive the lamination pressing die set 211 to lift, and will not affect the lamination pressing die set 211 to move back and forth in the horizontal first direction.
[0029] In some examples, the lifting power structure 2122 uses a linear module to realize the linear movement of the lifting bracket 2121 in the vertical direction. The linear module can be, but is not limited to, a screw-type linear module, a belt-type linear module, a gear rack linear module, and a linear motor module. For example, when a screw-type linear module is used as the lifting power structure 2122, the lifting power structure 2122 may specifically include a first screw and a first screw motor that drives the first screw to rotate. The first screw extends in the vertical direction. The second end of the lifting bracket 2121 is threadedly connected to the first screw, so that when the first screw motor drives the first screw to rotate, the lifting bracket 2121 is driven to rise and fall along the extension direction of the first screw. For another example, when a linear motor module is used as the lifting power structure 2122, the lifting power structure 2122 may specifically include a first linear motor, and the lifting bracket 2121 is connected to the mover of the first linear motor to drive the lifting bracket 2121 to rise and fall.
[0030] It should be noted that the lifting power structure 2122 has no particular limitation as long as it can drive the lifting bracket 2121 to move in the vertical direction.
[0031] In some examples, such as Figures 1 to 3As shown, the first end of the lifting bracket 2121 can be specifically connected to the lamination pressing die set 211 through a linear bearing structure (not shown) without affecting the lamination pressing die set 211 to move back and forth in the horizontal first direction. It can be understood that the linear bearing structure has a guiding function for moving back and forth in the horizontal first direction. In this way, the above-mentioned structure can be set so that the first end of the lifting bracket 2121 can be connected to the lamination pressing die set 211 through the linear bearing structure, and the lamination pressing die set 211 can also move back and forth in the horizontal first direction relative to the first end of the lifting bracket 2121 through the guiding function of the linear bearing structure for moving back and forth in the horizontal first direction, that is, it does not affect the lamination pressing die set 211 to move back and forth in the horizontal first direction. Further, the lamination pressing die set 211 is provided with a guide installation hole 2111 penetrating along the horizontal first direction. The linear bearing structure includes a guide tube and a bearing, one end of the guide tube is fastened to the first end of the lifting bracket 2121, and the other end of the guide tube passes through the guide installation hole along the horizontal first direction. The outer ring of the bearing is fixed in the guide installation hole 2111, and the inner ring of the bearing is slidably sleeved on the guide tube. In this way, the inner ring of the bearing can slide back and forth in the first horizontal direction along the guide tube, so that the lamination pressing die set 211 can also move back and forth in the first horizontal direction relative to the first end of the lifting bracket 2121, and the transmission connection between the first end of the lifting bracket 2121 and the lamination pressing die set 211 can be achieved without affecting the back and forth movement of the lamination pressing die set 211 in the first horizontal direction.
[0032] In some examples, such as Figures 1 to 3 As shown, the second power module 213 includes a horizontal moving bracket 2131 and a horizontal moving power structure 2132 that drives the horizontal moving bracket 2131 to move back and forth in the horizontal first direction. The first end of the horizontal moving bracket 2131 is connected to the stacking press die set 211 in a transmission manner without affecting the lifting of the stacking press die set 211, so that when the horizontal moving power structure 2132 drives the horizontal moving bracket 2131 to move back and forth in the horizontal first direction, the stacking press die set 211 is synchronously driven to move back and forth in the horizontal first direction. It can be understood that the horizontal moving bracket 2131 can be specifically composed of Figure 3 Thus, through the above-mentioned structural setting, when the horizontal moving power structure 2132 drives the horizontal moving bracket 2131 to move back and forth in the first horizontal direction, it can simultaneously drive the lamination pressing die set 211 to move back and forth in the first horizontal direction without affecting the lifting and lowering of the lamination pressing die set 211 in the vertical direction.
[0033] In some examples, the horizontal moving power structure 2132 uses a linear module to realize the linear movement of the horizontal moving bracket 2131 in the horizontal first direction. The linear module can be but is not limited to a screw-type linear module, a belt-type linear module, a gear rack linear module, and a linear motor module. For example, when a screw-type linear module is used as the horizontal moving power structure 2132, the horizontal moving power structure 2132 may specifically include a second screw and a second screw motor that drives the second screw to rotate. The second screw extends along the horizontal first direction. The second end of the horizontal moving bracket 2131 is threadedly connected to the second screw, so that when the second screw motor drives the second screw to rotate, the horizontal moving bracket 2131 is driven to move back and forth in the horizontal first direction along the extension direction of the second screw. For another example, when a linear motor module is used as the horizontal moving power structure 2132, the horizontal moving power structure 2132 may specifically include a second linear motor, and the horizontal moving bracket 2131 is connected to the mover of the second linear motor to drive the horizontal moving bracket 2131 to move back and forth in the horizontal first direction.
[0034] It should be noted that there is no particular limitation on the horizontal moving power structure 2132 as long as it can drive the horizontal moving bracket 2131 to move back and forth in the horizontal first direction.
[0035] In some examples, such as Figures 1 to 3 As shown, the first end of the horizontal movable bracket 2131 is provided with a guide rail extending in the vertical direction, and the lamination pressing die set 211 is slidably arranged on the guide rail, so as to realize the transmission connection between the first end of the horizontal movable bracket 2131 and the lamination pressing die set 211 without affecting the lifting and lowering of the lamination pressing die set 211. In this way, the lamination pressing die set 211 can slide back and forth in the vertical direction along the guide rail, so that the lamination pressing die set 211 can also perform vertical lifting movement relative to the first end of the horizontal movable bracket 2131, and the transmission connection between the first end of the horizontal movable bracket 2131 and the lamination pressing die set 211 can be realized without affecting the lifting and lowering of the lamination pressing die set 211.
[0036] In some examples, such as Figures 1 to 3As shown, the lamination pressing knife module 211 includes a lamination pressing knife 2112, a pressing knife mounting bracket 2113 and a module bracket 2114, the first end of the module bracket 2114 is respectively connected to the first power module 212 and the second power module 213 by transmission, and the second end of the module bracket 2114 is fixed to the lamination pressing knife 2112 by the pressing knife mounting bracket 2113, and the lamination pressing knife 2112 is extended along the horizontal first direction. It can be understood that the first end of the above-mentioned module bracket 2114 is respectively connected to the first power module 212 and the second power module 213 by transmission, which specifically means that the first end of the above-mentioned module bracket 2114 can be connected to the first power module 212 by transmission, while not affecting its back and forth movement in the horizontal first direction, and the first end of the above-mentioned module bracket 2114 can be connected to the second power module 213 by transmission, while not affecting its lifting in the vertical direction. Therefore, the above-mentioned guide mounting hole 2111 and guide rail can be specifically set on the module bracket 2114. Thus, through the above-mentioned structural setting, the lamination pressing knife 2112 of the corresponding lamination pressing knife module 211 can be effectively lifted and lowered in the vertical direction and moved back and forth in the horizontal first direction by driving the first power module 212 and the second power module 213 respectively. Furthermore, the lamination pressing knife module 211 also includes a buffer cylinder 2115, which is installed at the second end of the module bracket 2114, and the cylinder shaft of the buffer cylinder 2115 is installed and fixed to the lamination pressing knife 2112 through the pressing knife mounting bracket 2113, so that the lamination pressing knife 2112 is extended along the horizontal first direction. In this way, through the structural setting of the buffer cylinder 2115, when the laminate press knife 2112 of the laminate press knife module 211 is driven by the first power module 212 to perform a downward pressing movement, the reaction force generated by the laminate press knife 2112 when being pressed downward can be quickly eliminated through the contraction of the buffer cylinder 2115, thereby providing good shock-absorbing protection for the laminate press knife 2112.
[0037] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.
Claims
1. A lamination machine, characterized in that: It includes a stacking platform and two stacking devices, the two stacking devices are relatively arranged on both sides of the stacking platform in a first horizontal direction, and each of the stacking devices includes two stacking assemblies, the two stacking assemblies are spaced apart on corresponding sides of the stacking platform in a second horizontal direction, and each of the stacking assemblies includes a stacking knife die set, a first power module that only drives the stacking knife die set to rise and fall, and a second power module that only drives the stacking knife die set to move back and forth in the first horizontal direction, and the first horizontal direction and the second horizontal direction are perpendicular to each other.
2. The laminating machine according to claim 1, characterized in that: The first power module includes a lifting bracket and a lifting power structure for driving the lifting bracket to lift. The first end of the lifting bracket is transmission-connected to the stacking cutter module without affecting the back-and-forth movement of the stacking cutter module in the first horizontal direction, so that when the lifting power structure drives the lifting bracket to lift, the stacking cutter module is synchronously driven to lift.
3. The laminating machine according to claim 2, characterized in that: The lifting power structure includes a first screw and a first screw motor that drives the first screw to rotate, the first screw extends in a vertical direction, and the second end of the lifting bracket is threadedly connected to the first screw, so that when the first screw motor drives the first screw to rotate, the lifting bracket is driven to rise and fall along the extension direction of the first screw.
4. The laminating machine according to claim 2, characterized in that: The first end of the lifting bracket is transmission-connected to the lamination pressing die set through a linear bearing structure without affecting the back-and-forth movement of the lamination pressing die set in the first horizontal direction.
5. The laminating machine according to claim 4, characterized in that: The lamination pressing die set is provided with a guide mounting hole extending through it along the first horizontal direction; the linear bearing structure comprises a guide tube and a bearing, one end of the guide tube is fastened to the first end of the lifting bracket, and the other end of the guide tube extends through the guide mounting hole along the first horizontal direction; the outer ring of the bearing is fixed in the guide mounting hole, and the inner ring of the bearing is slidably sleeved on the guide tube.
6. The laminating machine according to claim 1, characterized in that: The second power module includes a horizontally movable bracket and a horizontally movable power structure for driving the horizontally movable bracket to move back and forth in the horizontal first direction. The first end of the horizontally movable bracket is transmission-connected to the stacking cutter module without affecting the lifting and lowering of the stacking cutter module, so that when the horizontally movable power structure drives the horizontally movable bracket to move back and forth in the horizontal first direction, the stacking cutter module is synchronously driven to move back and forth in the horizontal first direction.
7. The laminating machine according to claim 6, characterized in that: The horizontal moving power structure includes a second screw and a second screw motor that drives the second screw to rotate, the second screw extends along the horizontal first direction, and the second end of the horizontal moving bracket is threadedly connected to the second screw, so that when the second screw motor drives the second screw to rotate, the horizontal moving bracket is driven to move back and forth in the horizontal first direction along the extension direction of the second screw.
8. The laminating machine according to claim 6, characterized in that: The first end of the horizontal movable bracket is provided with a guide rail extending in the vertical direction, and the lamination pressing die set is slidably arranged on the guide rail to realize the transmission connection between the first end of the horizontal movable bracket and the lamination pressing die set without affecting the lifting and lowering of the lamination pressing die set.
9. The laminating machine according to any one of claims 1 to 8, characterized in that: The lamination press die set includes a lamination press die, a press die mounting bracket and a die set bracket. The first end of the die set bracket is respectively transmission-connected to the first power module and the second power module. The second end of the die set bracket is used to mount and fix the lamination press die through the press die mounting bracket, and the lamination press die is extended along the horizontal first direction.
10. The laminating machine according to claim 9, characterized in that: The lamination pressing knife module also includes a buffer cylinder, which is installed at the second end of the module bracket, and the cylinder shaft of the buffer cylinder is installed and fixed to the lamination pressing knife through the pressing knife mounting bracket, so that the lamination pressing knife is extended along the horizontal first direction.