An automatically adjustable circular blade holder for a lithium battery separator film slitting machine

Abstract

This utility model discloses an automatically adjustable circular blade holder for a lithium battery separator film slitting machine, including a base, an upper blade assembly, a lower blade assembly, and a translation mechanism mounted on the base. The upper blade assembly has a guide rail and a power mechanism on its base. Multiple base plates are slidably mounted on the guide rail, each base plate having a transmission mechanism and a circular blade mechanism. Multiple transmission mechanisms are threadedly connected to the same positioned transmission screw, and the operation of each transmission mechanism controls its movement on the transmission screw. Multiple circular blade mechanisms are arranged opposite to the lower blade assembly. The power mechanism drives the multiple circular blade mechanisms. The translation mechanism controls the direction of movement of the multiple circular blade mechanisms and their separation from the lower blade assembly. This solution allows for automatic blade adjustment, independent adjustment of a single circular blade, and direct replacement of damaged circular blades, effectively solving the problem of inconvenient blade replacement in existing circular blade holders.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium battery separator film slitting machines, and in particular to an automatically adjustable circular blade holder for lithium battery separator film slitting machines. Background Technology

[0002] The circular blade holder is a key module and structure in equipment used in the slitting of lithium-ion battery separator films. Traditional slitting blade holders are swing-arm type manual blade holders, with a fixed lower blade shaft and an upper blade shaft rotating on the swing arm. The upper blade shaft is equipped with multiple blade holders for mounting the upper circular blades. The feed rate is controlled by adjusting the angle of the swing arm, and the blade contact is adjusted by adjusting the left and right lateral movement of the swing arm. Blade adjustments typically occur when a blade change is required.

[0003] The specific process is as follows: When a circular blade is damaged (in this case, the upper circular blade is damaged), the slitting machine stops. The blade guide adjustment handle is adjusted to move the upper blade away from the lower blade. Then, the feed adjustment handle is adjusted to adjust the swing arm angle, moving the upper blade axis away from the lower blade axis, causing the upper blade to exit the blade slot. This process is called blade retraction. The blade holder is disconnected, the entire blade holder is pulled out, the upper blade axis fixing seat is loosened, and the upper blade axis is removed using the blade axis trolley and transferred to the blade changer. The upper blade holder is loosened (if the innermost blade is damaged, all blade holders need to be loosened). The blade holders are removed one by one, the blade holder requiring blade replacement is located, the blade fixing device is loosened, the blade is replaced, the blade fixing device is reinstalled, and the blade holder is reinstalled onto the blade axis. At this point, the blade holder does not need to be fixed; the blade axis trolley is used to remove it. Retrieve the upper cutter shaft and install it onto the cutter holder. Secure the cutter shaft and manually move the cutter holder on the cutter shaft until the blade is approximately positioned within the cutter groove of the lower cutter shaft without touching any object. Adjust the feed adjustment handle to bring the upper cutter shaft closer to the lower cutter shaft, thus initiating the cut. Simultaneously, clamp a gauge block between the upper and lower cutter shafts until the cutter shaft clamps the gauge block. At this point, zero the feed amount. Remove the gauge block and continue feeding to the preset position. Manually move the upper cutter holder to bring the upper blade close to the lower blade, then secure the cutter holder to complete the zeroing of the blade contact amount. Repeat the retraction process, then push the cutter holder forward, secure it, and thread the tape. After threading the tape, adjust the feed adjustment handle to feed to the preset value, then adjust the blade contact handle to the preset value. Secure the cutter shaft and start the slitting machine to complete the entire blade change (including blade adjustment) process.

[0004] This structure has many inconveniences:

[0005] First, the tool changing process is cumbersome, and each tool change requires zeroing, which takes a long time and accounts for a large proportion of the total process time, resulting in wasted time.

[0006] Second, the zeroing process of the tool holder relies on manual adjustment. The upper blade is easily damaged and expensive. It requires workers to have a lot of experience in tool adjustment and requires a dedicated tool adjuster, which increases labor costs.

[0007] Third, changing the tool requires removing all the tool holders that are associated with the position of the tool to be replaced before the tool can be replaced. It is not possible to directly replace the tool to be replaced. In addition, the tool holder and the tool shaft are closely matched, making installation difficult. Utility Model Content

[0008] The purpose of this invention is to provide an automatically adjustable circular blade holder for a lithium battery separator film slitting machine, so as to solve the problem of inconvenient blade changing in existing circular blade holders.

[0009] To address the aforementioned technical problems, this utility model provides an automatically adjustable circular blade holder for a lithium battery separator film slitting machine, comprising a base, an upper blade assembly, a lower blade assembly, and a translation mechanism mounted on the base. The upper blade assembly includes a base, a guide rail, a base plate, a transmission mechanism, a circular blade mechanism, and a power mechanism. The base is connected to the translation mechanism, and the guide rail and power mechanism are mounted on the base. The trajectory of the guide rail is consistent with the extension direction of the trajectory of the lower blade assembly. Multiple base plates are slidably mounted on the guide rail, and each base plate is provided with a transmission mechanism and a circular blade mechanism. Multiple transmission mechanisms are threadedly connected to the same positioned transmission screw, and the operation of the multiple transmission mechanisms is used to control the movement of the multiple transmission mechanisms on the transmission screw. Multiple circular blade mechanisms are arranged opposite to the lower blade assembly. The power mechanism drives the multiple circular blade mechanisms to operate. The translation mechanism controls the direction and movement of the multiple circular blade mechanisms away from the lower blade assembly.

[0010] In one embodiment, the top of the base is provided with a translation rail, the arrangement trajectory of the translation rail is perpendicular to the arrangement trajectory of the cutting tool assembly, and the base is slidably mounted on the translation rail.

[0011] In one embodiment, the base has two oppositely arranged side plates, and the guide rail and the transmission screw are provided between the two side plates. The two ends of the transmission screw are respectively fixedly connected to the two side plates.

[0012] In one embodiment, the transmission mechanism includes a tool adjustment motor, an output gear, and a displacement gear; the output shaft of the tool adjustment motor and the output gear are connected to form a coaxial rotating structure; the output gear meshes with the displacement gear; and the displacement gear is threaded onto the transmission lead screw.

[0013] In one embodiment, the power mechanism includes a power motor, a power drive wheel, a power driven wheel, and a power shaft; the output shaft of the power motor is connected to the power drive wheel in a coaxial rotation structure; the power drive wheel and the power driven wheel are connected in a driving connection; the power driven wheel and the power shaft are connected in a coaxial rotation structure; the power shaft passes through multiple circular cutter mechanisms, and the power shaft is connected in a driving connection to multiple circular cutter mechanisms.

[0014] In one embodiment, each of the plurality of circular blade mechanisms includes a blade holder, a first transmission wheel, a second transmission wheel, and a circular blade; the plurality of blade holders are all sleeved outside the power shaft; the plurality of first transmission wheels are all sleeved outside the power shaft, and the plurality of first transmission wheels are all connected to the power shaft in a coaxial rotation structure; the plurality of second transmission wheels are respectively connected to the plurality of first transmission wheels in a transmission connection; and the plurality of circular blades are respectively connected to the plurality of second transmission wheels in a coaxial rotation structure.

[0015] In one embodiment, the translation mechanism includes a translation motor, a translation lead screw, and a slider; the output shaft of the translation motor is connected to the translation lead screw in a coaxial rotation structure; the translation lead screw is threadedly connected to the slider; and the slider is fixedly connected to the base.

[0016] The beneficial effects of this utility model are as follows:

[0017] In the existing technology, the manual tool holder with a swing arm adjusts the tool by adjusting the swing arm, which requires manual adjustment. In addition, the upper blade is not an independent tool holder and requires linkage to change the tool. However, in this utility model, the tool can be automatically adjusted, a certain round blade can be adjusted independently, and damaged round blades can be replaced directly and independently, thus effectively solving the problem of inconvenient tool changing in the existing round tool holder. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram provided by an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 A schematic diagram of the translation mechanism;

[0021] Figure 3 yes Figure 1 A schematic diagram of the upper blade assembly structure;

[0022] Figure 4 yes Figure 3 A schematic diagram of the transmission mechanism;

[0023] Figure 5 yes Figure 3 A schematic diagram of the circular cutter mechanism and the power mechanism.

[0024] The attached figures are labeled as follows:

[0025] 100. Base; 110. Translation rail;

[0026] 200. Upper blade assembly; 210. Base; 211. Side plate; 220. Guide rail; 230. Base plate; 240. Transmission mechanism; 241. Blade adjustment motor; 242. Output gear; 243. Displacement gear; 250. Circular blade mechanism; 251. First transmission wheel; 252. Second transmission wheel; 253. Blade holder; 254. Circular blade; 260. Power mechanism; 261. Power motor; 262. Driven power wheel; 263. Driven power wheel; 264. Power shaft; 270. Transmission screw;

[0027] 300. Lowering blade assembly;

[0028] 400. Translation mechanism; 410. Translation motor; 420. Translation lead screw; 430. Slider. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] This utility model provides an automatically adjustable circular blade holder for a lithium battery separator film slitting machine, and its implementation is as follows: Figures 1 to 5As shown, the system includes a base 100, and an upper cutting tool assembly 200, a lower cutting tool assembly 300, and a translation mechanism 400 mounted on the base 100. The upper cutting tool assembly 200 includes a base 210, a guide rail 220, a base plate 230, a transmission mechanism 240, a circular cutting tool mechanism 250, and a power mechanism 260. The base 210 is connected to the translation mechanism 400, and the base 210 is provided with the guide rail 220 and the power mechanism 260. The arrangement trajectory of the guide rail 220 is consistent with the extension direction of the arrangement trajectory of the lower cutting tool assembly 300. Multiple base plates 230 are slidably mounted on the base 100. On the guide rail 220, multiple base plates 230 are equipped with transmission mechanisms 240 and circular cutter mechanisms 250. Each of the multiple transmission mechanisms 240 is threadedly connected to the same positioning transmission screw 270. The operation of the multiple transmission mechanisms 240 is used to control the movement of the multiple transmission mechanisms 240 on the transmission screw 270. Each of the multiple circular cutter mechanisms 250 is arranged opposite to the lower cutter assembly 300. The power mechanism 260 is used to drive the operation of the multiple circular cutter mechanisms 250. The translation mechanism 400 is used to control the direction of movement of the multiple circular cutter mechanisms 250 and their movement away from the lower cutter assembly 300.

[0031] Assuming that the upper blade assembly 200 needs to be replaced at this time, the slitting machine can be stopped by controlling the transmission mechanism 240 to start, so that the transmission mechanism 240 and the transmission screw 270 can engage in screw drive, thereby driving the transmission mechanism 240, the circular blade mechanism 250 and the base plate 230 to move along the guide rail 220 together, so that the circular blade mechanism 250 can leave the blade groove of the lower blade assembly 300 until the circular blade mechanism 250 no longer touches any object in the blade groove. Then, the translation mechanism 400 drives the upper blade assembly 200 to move away from the lower blade assembly 300, so that the circular blade mechanism 250 can completely exit the blade groove of the lower blade assembly 300, thus completing the entire blade removal process.

[0032] Obviously, since each of the above-mentioned circular cutter mechanisms 250 can be controlled independently, the above solution allows for the individual replacement of the blades in the required circular cutter mechanism 250 as needed, thereby effectively solving the problem of inconvenient blade replacement in existing circular cutter holders.

[0033] like Figure 1 and Figure 2 As shown, in this embodiment, the top of the base 100 is provided with a translation rail 110, the arrangement trajectory of the translation rail 110 is perpendicular to the arrangement trajectory of the cutting tool assembly 300, and the base 210 is slidably installed on the translation rail 110.

[0034] With this configuration, the translation rail 110 can guide the linear reciprocating movement of the base 210, ensuring that the base 210 can only move toward and away from the cutting assembly 300 in a specified direction. Since multiple circular cutting mechanisms 250 are mounted on the base 210, this implementation achieves the purpose of the translation mechanism 400 in controlling the movement of multiple circular cutting mechanisms 250 and their movement away from the cutting assembly 300.

[0035] like Figure 3 As shown, in this embodiment, the base 210 is provided with two oppositely arranged side plates 211, and a guide rail 220 and a transmission screw 270 are provided between the two side plates 211. The two ends of the transmission screw 270 are respectively fixedly connected to the two side plates 211.

[0036] With this setup, the transmission screw 270 can be positioned and installed using the two side plates 211.

[0037] like Figure 3 and Figure 4 As shown, in this embodiment, the transmission mechanism 240 includes a tool adjustment motor 241, an output gear 242, and a displacement gear 243. The output shaft of the tool adjustment motor 241 is connected to the output gear 242 in a coaxial rotating structure. The output gear 242 meshes with the displacement gear 243. The displacement gear 243 is threaded onto the transmission screw 270.

[0038] With this setup, once the tool adjustment motor 241 is started, it can drive the output gear 242 to rotate. The rotation of the output gear 242 will drive the displacement gear 243 to rotate. The rotation of the displacement gear 243 will enable the displacement gear 243 to move linearly on the transmission screw 270, thereby achieving the purpose of moving and controlling the entire transmission mechanism 240 on the transmission screw 270.

[0039] like Figure 3 and Figure 5 As shown, this embodiment includes a power mechanism 260 comprising a power motor 261, a power drive wheel 262, a power driven wheel 263, and a power shaft 264. The output shaft of the power motor 261 is connected to the power drive wheel 262 in a coaxial rotational structure. The power drive wheel 262 is connected to the power driven wheel 263 in a transmission connection. The power driven wheel 263 is connected to the power shaft 264 in a coaxial rotational structure. The power shaft 264 passes through multiple circular cutter mechanisms 250 and is connected to multiple circular cutter mechanisms 250 in a transmission connection.

[0040] With this configuration, once the power motor 261 starts, it can control the power drive wheel 262 to rotate. The rotation of the power drive wheel 262 can control the rotation of the power driven wheel 263. The rotation of the power driven wheel 263 can control the rotation of the power shaft 264. The rotation of the power shaft 264 can provide power to multiple circular cutter mechanisms 250, so that multiple circular cutter mechanisms 250 can obtain power and work synchronously.

[0041] It should be noted that there are multiple options for the transmission method between the driving wheel 262 and the driven wheel 263. For example, a gear set can be set between the two for meshing transmission, or a synchronous belt can be used to achieve transmission. The appropriate method can be selected according to the actual needs during the design and production process.

[0042] like Figure 3 and Figure 5 As shown, this embodiment provides multiple circular blade mechanisms 250, each including a blade holder 253, a first transmission wheel 251, a second transmission wheel 252, and a circular blade 254. Multiple blade holders 253 are fitted around a power shaft 264. Multiple first transmission wheels 251 are fitted around a power shaft 264, and are coaxially connected to the power shaft 264. Multiple second transmission wheels 252 are respectively connected to the multiple first transmission wheels 251. Multiple circular blades 254 are respectively connected to the multiple second transmission wheels 252, forming a coaxial rotation structure.

[0043] With this configuration, once the power shaft 264 rotates, it can drive multiple first transmission wheels 251 to rotate. The rotation of the multiple first transmission wheels 251 can control the rotation of multiple second transmission wheels 252, and the rotation of the multiple second transmission wheels 252 can control the rotation of multiple circular blades 254, thereby realizing the rotation control of multiple circular blades 254.

[0044] It should be noted that there are multiple options for the transmission method between the first transmission wheel 251 and the second transmission wheel 252. For example, a gear set can be set between them for meshing transmission, or a synchronous belt can be used to achieve transmission. The appropriate method can be selected according to actual needs during design and production.

[0045] like Figure 1 and Figure 2 As shown, this embodiment provides a translation mechanism 400 including a translation motor 410, a translation lead screw 420, and a slider 430; the output shaft of the translation motor 410 is connected to the translation lead screw 420 in a coaxial rotation structure; the translation lead screw 420 is threadedly connected to the slider 430; the slider 430 is fixedly connected to the base 210.

[0046] After adopting the above configuration, once the translation motor 410 is started, it can drive the translation screw 420 to rotate. The rotation of the translation screw 420 will cause the slider 430 to move on the translation screw 420, thereby driving the base 210 to move together. Since the translation motor 410 can switch between forward and reverse directions, by controlling the direction of the translation motor 410, the base 210 can move towards and away from the cutting tool assembly 300, thereby realizing the purpose of the translation mechanism 400 to control the movement of multiple circular knife mechanisms 250 towards and away from the cutting tool assembly 300.

[0047] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. An automatically adjustable circular blade holder for a lithium battery separator film slitting machine, characterized in that, Includes a base, and an upper blade assembly, a lower blade assembly, and a translation mechanism disposed on the base; The upper blade assembly includes a base, a guide rail, a base plate, a transmission mechanism, a circular blade mechanism, and a power mechanism; The base is connected to the translation mechanism, and the base is provided with the guide rail and the power mechanism; The arrangement trajectory of the guide rail is consistent with the extension direction of the arrangement trajectory of the cutting tool assembly; The multiple base plates are slidably mounted on the guide rail, and the multiple base plates are provided with the transmission mechanism and the circular knife mechanism; The multiple transmission mechanisms are all threadedly connected to the same positioning and installed transmission screw, and the operation of the multiple transmission mechanisms is used to control the movement of the multiple transmission mechanisms on the transmission screw. Multiple circular cutting tools are arranged opposite to the lower cutting tool assembly; The power mechanism is used to drive the operation of the multiple circular knife mechanisms; The translation mechanism is used to control the direction of movement of the multiple circular blade mechanisms and to move them away from the lower blade assembly.

2. The automatically adjustable circular knife holder according to claim 1, characterized in that, The base is provided with a translation rail on its top, and the arrangement trajectory of the translation rail is perpendicular to the arrangement trajectory of the lowering blade assembly. The base is slidably mounted on the translation rail.

3. The automatically adjustable circular knife holder according to claim 1, characterized in that, The base has two oppositely arranged side plates, and the guide rail and the transmission screw are provided between the two side plates. The two ends of the transmission screw are respectively fixedly connected to the two side plates.

4. The automatically adjustable circular knife holder according to claim 1, characterized in that, The transmission mechanism includes a tool-adjusting motor, an output gear, and a displacement gear; The output shaft of the tool-adjusting motor is connected to the output gear in a coaxial rotating structure. The output gear meshes with the displacement gear; The displacement gear is fitted onto the transmission screw via a threaded connection.

5. The automatically adjustable circular knife holder according to claim 1, characterized in that, The power mechanism includes a power motor, a power drive wheel, a power driven wheel, and a power shaft; The output shaft of the power motor is connected to the power drive wheel in a coaxial rotating structure; The driving wheel and the driven wheel are connected by a transmission. The driven wheel and the drive shaft are connected in a coaxial rotation structure; The power shaft passes through multiple circular cutter mechanisms, and the power shaft is connected to the multiple circular cutter mechanisms in a driving connection.

6. The automatically adjustable circular knife holder according to claim 5, characterized in that, Each of the aforementioned circular cutting tool mechanisms includes a tool holder, a first transmission wheel, a second transmission wheel, and a circular cutting tool; Multiple tool holders are fitted around the power shaft; Multiple first transmission wheels are all sleeved on the outside of the power shaft, and multiple first transmission wheels are all connected to the power shaft in a coaxial rotation structure; Multiple second transmission wheels are respectively connected to multiple first transmission wheels in a transmission manner; The plurality of circular blades are respectively connected to the plurality of second transmission wheels in a coaxial rotating structure.

7. The automatically adjustable circular knife holder according to claim 1, characterized in that, The translation mechanism includes a translation motor, a translation lead screw, and a slider; The output shaft of the translation motor is connected to the translation lead screw in a coaxial rotation structure. The translation screw is threadedly connected to the slider. The slider is connected and fixed to the base.

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