A cutter locking mechanism for diaphragm straight knife slitting

CN224826868UActive Publication Date: 2026-10-09DONGGUAN JINSHENG PACKAGING MACHINERY CO LTD
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Patent Information

Application Number
CN202522462203.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-20
Publication Date
2026-10-09
Estimated Expiration
2035-11-20

AI Technical Summary

Technical Problem

[0003]现有的刀具锁紧机构结构较为复杂,设计较为不合理,且该机构通常仅提供单一方向的水平锁紧力,对于刀片在垂直方向缺乏有效的主动约束,在高速分切过程中,锋利的刀片刃口会受到来自材料的连续、不均匀的切割阻力,针对此问题,发明人设计了一种隔膜直刀分切用的刀具锁紧机构

Benefits of technology

[0014]1、本实用新型提供了一种隔膜直刀分切用的刀具锁紧机构,该刀具锁紧机构包括连接轴、基座、直刀主体和驱动件,直刀主体包括隔膜和刀片,整体结构简单,设计合理,通过设置的支撑部以及连接部,实现了对刀片的双向锁紧,不仅水平压紧,更通过斜面产生了垂直向下的锁紧分力,有效防止了刀片在切割受力时产生的跳刀或微振动,避免了因振动和应力集中导致的刀口崩刃或异常磨损。

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Abstract

The utility model relates to diaphragm straight knife technical field, concretely is a kind of cutter locking mechanism for diaphragm straight knife slitting, the cutter locking mechanism includes connecting shaft, base, straight knife main body and driving part, base is arranged at the side of connecting shaft, straight knife main body is arranged in the inside of base, driving part is arranged at the side of straight knife main body away from connecting shaft;Straight knife main body includes diaphragm and blade, blade is rectangular, diaphragm is arranged at the side of blade, diaphragm and blade are respectively provided with multiple, a group of blade and the diaphragm of blade side is a group, straight knife main body is composed of multiple blade and diaphragm, diaphragm and connecting portion, support portion and connecting portion are integrally formed, and connecting portion is located at the top of support portion, support portion is rectangular, connecting portion is right trapezoid.The utility model has the advantages of simple structure, reasonable design, functional full, can effectively prevent blade from producing knife jump or microvibration when cutting stress.
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Description

Technical Field

[0001] This utility model relates to the field of diaphragm straight knife technology, specifically a knife locking mechanism for diaphragm straight knife slitting. Background Technology

[0002] In the field of precision slitting of emerging materials such as lithium-ion battery separators and high-end optical films, the quality requirements for the cuts are extremely stringent. Any burrs, flanging, or dust can lead to a serious decline in product performance. Therefore, the tool locking mechanism is one of the essential mechanisms in the straight-blade slitting of separators.

[0003] Existing tool locking mechanisms are complex in structure and poorly designed. They typically only provide horizontal locking force in one direction, lacking effective active constraint on the blade in the vertical direction. During high-speed slitting, the sharp blade edge is subjected to continuous and uneven cutting resistance from the material. To address this problem, the inventors designed a tool locking mechanism for diaphragm straight blade slitting. Utility Model Content

[0004] The purpose of this utility model is to provide a tool locking mechanism for diaphragm straight knife cutting, which has the advantages of simple structure, reasonable design, full functionality, and can effectively prevent the blade from jumping or vibrating under cutting force, thus solving the problems mentioned in the above technical background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tool locking mechanism for diaphragm straight knife cutting, the tool locking mechanism comprising a connecting shaft, a base, a straight knife body and a driving component, wherein the base is disposed on one side of the connecting shaft, the straight knife body is disposed inside the base, and the driving component is disposed on the side of the straight knife body away from the connecting shaft;

[0006] The straight blade body includes a diaphragm and a blade. The blade is rectangular, and the diaphragm is disposed on one side of the blade. Multiple diaphragms and blades are disposed. A set of blades and the diaphragm on one side of the blade constitutes a set. The straight blade body is composed of multiple sets of blades and diaphragms.

[0007] Preferably, the diaphragm and the connecting part, the support part and the connecting part are integrally formed, and the connecting part is located on top of the support part.

[0008] Preferably, the support portion is rectangular and the connecting portion is a right-angled trapezoid.

[0009] Preferably, the base includes a circular column and a connecting groove. The circular column is fixed to one side of the connecting shaft, and the connecting groove is opened inside the top of the circular column. The straight blade body is located inside the connecting groove.

[0010] Preferably, the circular column has an installation groove on the side away from the connecting shaft.

[0011] Preferably, the driving component includes a cylinder and a pressure plate, with the cylinder installed inside the mounting slot and the pressure plate connected to the output end of the cylinder.

[0012] Preferably, a positioning block is fixed on the top surface of the pressure plate. The positioning block is in the shape of a right trapezoid, and the positioning block and the pressure plate are connected to the diaphragm closest to the cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a tool locking mechanism for diaphragm straight blade slitting. The tool locking mechanism includes a connecting shaft, a base, a straight blade body, and a driving component. The straight blade body includes a diaphragm and a blade. The overall structure is simple and reasonably designed. Through the set support part and connecting part, the blade is locked in both directions. It not only presses horizontally, but also generates a vertically downward locking component force through the inclined surface, which effectively prevents the blade from jumping or vibrating when it is under cutting force, and avoids blade chipping or abnormal wear caused by vibration and stress concentration.

[0015] 2. This utility model adopts cylinder drive, realizing one-button quick locking and unlocking, which greatly shortens the time for tool changing and tool spacing adjustment, significantly improves production efficiency, and the cylinder is built into the mounting groove of the base, making the whole mechanism simple in appearance and compact in size, reducing space occupation and making the layout more reasonable. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a structural diagram of the driving component of this utility model;

[0018] Figure 3 This is a structural diagram of the base of this utility model;

[0019] Figure 4 This is a structural diagram of the straight blade body of this utility model.

[0020] The reference numerals and names in the figure are as follows:

[0021] 1. Connecting shaft; 2. Base; 21. Circular column; 22. Connecting groove; 23. Mounting groove; 3. Straight blade body; 31. Diaphragm; 311. Support part; 312. Connecting part; 32. Blade; 4. Drive component; 41. Cylinder; 42. Pressure plate; 43. Positioning block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0025] Please see Figures 1 to 4 The present invention provides an embodiment of a tool locking mechanism for diaphragm straight knife cutting. The tool locking mechanism includes a connecting shaft 1, a base 2, a straight knife body 3 and a driving member 4. The base 2 is disposed on one side of the connecting shaft 1, the straight knife body 3 is disposed inside the base 2, and the driving member 4 is disposed on the side of the straight knife body 3 away from the connecting shaft 1.

[0026] The straight blade body 3 includes a diaphragm 31 and a blade 32. The blade 32 is rectangular. The diaphragm 31 is disposed on one side of the blade 32. Multiple diaphragms 31 and multiple blades 32 are disposed. A set of blades 32 and a diaphragm 31 on one side of the blade 32 constitutes a set. The straight blade body 3 is composed of multiple sets of blades 32 and diaphragms 31.

[0027] The connecting shaft 1 is the key component connecting the entire locking mechanism to the slitting machine host. The base 2 provides structural support and installation space. The straight blade body 3 performs the slitting function. The drive component 4 provides the power for locking and unlocking. The diaphragm 31 is the precision spacing and functional component of the straight blade body 3. The blade 32 is the core cutting element, and its rectangular blade body provides a stable cutting edge.

[0028] The diaphragm 31 includes a support portion 311 and a connecting portion 312, which are integrally formed, and the connecting portion 312 is located on top of the support portion 311.

[0029] The support part 311 is rectangular, and the connecting part 312 is a right trapezoid.

[0030] The support 311 provides the main axial bearing surface. Its rectangular structure ensures a sufficiently large and flat contact area with the adjacent blade 32 and pressure plate 42, thereby uniformly transmitting the locking force and preventing the surface of the blade 32 from being crushed. The connecting part 312 achieves radial locking and anti-tipping. Its right-angled trapezoidal bevel is the key to its cooperation with the positioning block 43. This design converts a portion of the horizontal locking force into downward pressure, thereby firmly pressing the blade 32 in the vertical direction and preventing the blade tip from being lifted or vibrating during cutting.

[0031] The base 2 includes a circular column 21 and a connecting groove 22. The circular column 21 is fixed to one side of the connecting shaft 1, and the connecting groove 22 is opened inside the top of the circular column 21. The straight blade body 3 is located inside the connecting groove 22.

[0032] The circular column 21 forms the main shape of the base 2, providing sturdy support and ensuring stability during locking and cutting. The connecting groove 22 is used to precisely accommodate and position the straight blade body 3.

[0033] A mounting groove 23 is provided inside the circular column 21 on the side away from the connecting shaft 1.

[0034] Mounting slot 23 is used to house cylinder 41, making the entire mechanism compact and avoiding the bulkiness and interference problems of external cylinder 41.

[0035] The drive unit 4 includes a cylinder 41 and a pressure plate 42. The cylinder 41 is installed inside the mounting groove 23, and the pressure plate 42 is connected to the output end of the cylinder 41.

[0036] Cylinder 41 converts the energy of compressed air into linear thrust, enabling fast and automated locking and unlocking actions. Pressure plate 42 evenly transmits the concentrated force generated by cylinder 41 to the stacked end faces of the entire straight blade body 3.

[0037] A positioning block 43 is fixed on the top surface of the pressure plate 42. The positioning block 43 is a right trapezoid. The positioning block 43 and the pressure plate 42 are connected to the diaphragm 31 closest to the cylinder 41.

[0038] The positioning block 43, through its engagement with the inclined surface of the connecting part 312, generates a downward component force, actively constraining the vertical degree of freedom of the blade 32.

[0039] Working principle: When it is necessary to lock the straight blade body 3, the cylinder 41 drives the pressure plate 42 to move horizontally, thereby driving the pressure plate 42 and the diaphragm 31 on one side of the positioning block 43 to move synchronously, thereby locking the straight blade body 3. When the blade 32 needs to cut, due to the influence of the shape of the connecting part 312, the top of the blade 32 can perform cutting work stably and without obstruction.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tool locking mechanism for diaphragm straight knife slitting, characterized in that, include: The assembly includes a connecting shaft (1), a base (2), a straight blade body (3), and a driving component (4). The base (2) is located on one side of the connecting shaft (1), the straight blade body (3) is located inside the base (2), and the driving component (4) is located on the side of the straight blade body (3) away from the connecting shaft (1). The straight blade body (3) includes a diaphragm (31) and a blade (32). The blade (32) is rectangular. The diaphragm (31) is disposed on one side of the blade (32). Multiple diaphragms (31) and blades (32) are disposed. A set of blades (32) and the diaphragm (31) on one side of the blade (32) constitute a set. The straight blade body (3) is composed of multiple sets of blades (32) and diaphragms (31).

2. The tool locking mechanism for diaphragm straight knife slitting according to claim 1, characterized in that, The diaphragm (31) includes a support (311) and a connecting part (312), which are integrally formed, and the connecting part (312) is located on top of the support (311).

3. The tool locking mechanism for diaphragm straight knife slitting according to claim 2, characterized in that, The support part (311) is rectangular, and the connecting part (312) is a right trapezoid.

4. The tool locking mechanism for diaphragm straight knife slitting according to claim 1, characterized in that, The base (2) includes a circular column (21) and a connecting groove (22). The circular column (21) is fixed on one side of the connecting shaft (1), and the connecting groove (22) is opened inside the top of the circular column (21). The straight blade body (3) is located inside the connecting groove (22).

5. The tool locking mechanism for diaphragm straight knife slitting according to claim 4, characterized in that, The circular column (21) has an installation groove (23) on the side away from the connecting shaft (1).

6. The tool locking mechanism for diaphragm straight knife slitting according to claim 1, characterized in that, The drive unit (4) includes a cylinder (41) and a pressure plate (42). The cylinder (41) is installed inside the mounting groove (23), and the pressure plate (42) is connected to the output end of the cylinder (41).

7. The tool locking mechanism for diaphragm straight knife slitting according to claim 6, characterized in that, The top surface of the pressure plate (42) is fixed with a positioning block (43), which is a right trapezoid. The positioning block (43) and the pressure plate (42) are connected to the diaphragm (31) closest to the cylinder (41).