A tool for cutting of material
By employing a dual-handle cutter design and counterweight adjustment, the stability and safety issues of single-handle cutter cutting in monocrystalline silicon roll felt cutting have been resolved, achieving high-precision and safe cutting results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHUANGLIANG CRYSTALLINE SILICON NEW MATERIALS (BAOTOU) CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-07-14
AI Technical Summary
Existing single-handed civilian cutting tools have poor operational stability in cutting monocrystalline silicon rolls, posing safety hazards, making it difficult to control cutting accuracy, and affecting work quality and efficiency.
Design a double-handled knife with the handle set at a certain angle, combined with a counterweight and anti-slip structure, to allow for simultaneous operation with both hands, which is ergonomic and improves stability and safety.
The dual-handle design and counterweight adjustment reduce arm joint torque by 40%, improve cutting accuracy, avoid accidental injuries, and enhance operational stability and safety.
Smart Images
Figure CN224489201U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material cutting technology, specifically to a cutting tool for material cutting. Background Technology
[0002] In the production process of monocrystalline silicon rolled felt, cutting off excess felt is an essential step. Currently, the industry generally uses ordinary civilian cutting tools for this operation.
[0003] Most cutting tools currently on the market, such as watermelon knives, machetes, and utility knives, are designed for one-handed operation. In scenarios requiring precise cutting of excess felt, such as monocrystalline silicon felt rolling, using these tools presents several risks. Firstly, one-handed operation lacks stability, posing a higher risk of injury to the operator. Secondly, it's difficult to effectively control cutting precision, impacting work quality and efficiency.
[0004] Therefore, how to improve the safety of personnel during the cutting of monocrystalline silicon roll felt is a technical issue that has always been of concern to those skilled in the art. Utility Model Content
[0005] The purpose of this application is to provide a cutting tool with relatively high cutting safety.
[0006] This application provides a cutting tool for material cutting, comprising:
[0007] The blade includes a blade that extends along a first direction, and the blade also includes a first sidewall and a second sidewall arranged along the first direction;
[0008] The knife handle has two blades, which are respectively mounted on the first sidewall and the second sidewall. The blades extend along a second direction, which is arranged at an angle to the first direction.
[0009] Compared to single-handled knives, the knife in this application features handles on both sides, angled to the blade's extension direction. This allows users to operate with both hands, creating a synchronized force application structure. By balancing the force of both hands, the risk of blade deviation caused by unilateral force application is eliminated. In other words, this knife fundamentally changes the cutting operation method, effectively avoiding the safety issues associated with single-handed knife handling. This design significantly improves stability and safety during the cutting process, not only increasing cutting accuracy but also effectively preventing accidental injury to the operator. Whether in industrial production scenarios or daily life, this utility model's knife provides operators with convenience and reliable safety.
[0010] Taking the cutting of rolled felt as an example, when the tool of this application is used, the blade is parallel to the operator's body centerline, and the cutting direction is perpendicular to the standing direction of the human body. This conforms to the layout characteristics of the workbench in industrial operations and avoids the distortion of the operating posture caused by space constraints of the longitudinal transmission tool. According to statistics, in the rolled felt cutting test, the lateral force application method of the tool provided in this application reduced the torque of the arm joint by about 40%.
[0011] In one example, the handle is further provided with a counterweight component, the weight of which is adjustable.
[0012] In one example, the counterweight is mounted on the end of the handle.
[0013] In one example, the counterweight is mounted on the end of the handle near the blade.
[0014] In one example, the tool holder is further provided with a screw component and an internal thread component that engage via a threaded pair. One of the screw component and the internal thread component is disposed on the tool holder, and the other is disposed on the counterweight component. The counterweight component is connected to the tool holder via the threaded pair that engages between the screw component and the internal thread component.
[0015] In one example, at least a portion of the gripping surface of the knife handle has an anti-slip structure;
[0016] Alternatively, at least a portion of the gripping surface of the knife handle is provided with soft rubber;
[0017] Alternatively, the gripping surface of the knife handle is provided with both an anti-slip structure and soft rubber, and the anti-slip structure and the soft rubber are arranged at least partially offset.
[0018] Alternatively / and, the main material of the handle is hard plastic.
[0019] In one example, the handle includes a first end and a second end arranged along the second direction, the dimension of the handle along the second direction being greater than the dimension of the blade along the second direction, and both the first end and the second end extending to the outside of the corresponding side of the blade.
[0020] In one example, the handle has an inward curve on the side opposite to the blade to fit the human hand.
[0021] In one example, the cross-section of the blade has a V-shaped structure.
[0022] In one example, the blade is provided on both sides of the blade along the second direction;
[0023] Alternatively / and, the cutting edge is a cutting edge adapted for cutting single-crystal silicon roll felt;
[0024] Alternatively, the first direction and the second direction are perpendicular.
[0025] Alternatively and / or, the blade angle ranges from 15° to 60°. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of a cutting tool provided in an embodiment of this application;
[0027] Figure 2 for Figure 1 Enlarged view of point A in the cutting tool shown;
[0028] Figure 3 for Figure 1 A magnified view of point B in the cutting tool shown.
[0029] in, Figures 1 to 3 The annotations in the accompanying drawings are explained as follows:
[0030] 1. Blade; 11. Edge; 12. Body; 2. Handle; 21. Anti-slip structure; 22. Soft rubber; 23. Bending arc; 24. Hard plastic; 3. Counterweight component; 4. Screw component. Detailed Implementation
[0031] To enable those skilled in the art to better understand the technical solutions of the embodiments of this application, the embodiments of this application will be further described in detail below with reference to the accompanying drawings and specific examples.
[0032] Please refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of a cutting tool provided in an embodiment of this application; Figure 2 for Figure 1 Enlarged view of point A in the cutting tool shown; Figure 3 for Figure 1 A magnified view of point B in the cutting tool shown.
[0033] This application provides a cutting tool for material cutting. The tool provided is primarily a hand-operated tool, suitable for manual handling. This application uses the cutting of monocrystalline silicon rolled felt as an example to illustrate the technical solution and its effects. Of course, the tool provided can also be applied to cutting other materials, such as plastics.
[0034] In this embodiment, the cutting tool includes a blade 1 and a handle 2. The blade 1 can be made of high-speed steel, cemented carbide, superhard material, carbon steel, or ceramic, etc., as long as it meets the cutting requirements; these will not be described in detail here.
[0035] In this embodiment, the blade 1 includes a cutting edge 11 and a main body 12. The cutting edge 11 is located on one or both sides of the main body 12. The accompanying drawings show an example of a cutting edge 11 set on one side of the main body 12. Of course, in other embodiments, the main body 12 can be provided with cutting edges 11 on both sides, with the two cutting edges 11 located on opposite sides of the main body 12. This can satisfy the cutting in both pushing and pulling directions during cutting and improve the flexibility of tool use.
[0036] In this embodiment, the surface of the main body 12 can be a smooth surface, for example, formed by grinding to reduce cutting resistance. The shape of the cutting edge 11 is mainly determined by geometric parameters such as the cutting angle β, the cutting edge radius, and the cutting tip design. In this embodiment, the cross-section of the cutting edge 11 is a V-shaped structure. The cutting angle β of the cutting edge 11 ranges approximately from 15° to 60°, for example, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, or 60°. The smaller the cutting angle β of the cutting edge 11, the better the guiding performance.
[0037] In this embodiment, the blade 11 extends along a first direction, as shown in the figure, extending in a left-right direction. The blade body 1 also includes a first sidewall and a second sidewall arranged along the first direction; the first sidewall and the second sidewall are located on the left and right sides of the blade body 1, respectively, and extend along a second direction. In this embodiment, the first direction and the second direction are approximately perpendicular to each other. However, considering the possibility of setting errors, the angle between the first direction and the second direction is not absolutely 90 degrees, and a certain deviation is permissible. In one example, the first direction and the second direction are arranged at an angle, with the angle ranging from 80 degrees to 100 degrees.
[0038] In this embodiment of the application, there are two knife handles 2, which are respectively installed on the first side wall and the second side wall, and the knife handles 2 extend along the second direction.
[0039] Compared to single-handled knives, the knife in this application has handles 2 on both sides, which are set at a certain angle to the extension direction of the blade 11. Users can operate it with both hands, forming a structure where both hands apply force simultaneously. By balancing the force of both hands, the risk of knife deviation caused by unilateral force application is eliminated. In other words, the knife of this application fundamentally changes the cutting operation method and effectively avoids the safety problems caused by holding the knife with one hand. This design greatly improves the stability and safety during the cutting process, not only increasing cutting accuracy but also effectively preventing accidental injury to the operator. Whether in industrial production scenarios or daily life use, the knife of this utility model can bring convenience and reliable safety protection to users.
[0040] Taking the cutting of rolled felt as an example, when the tool of this application is used, the blade 11 is parallel to the operator's body centerline, and the cutting direction is perpendicular to the standing direction of the human body. This conforms to the layout characteristics of the workbench in industrial operations and avoids the distortion of the operating posture caused by space constraints of the longitudinal transmission tool. According to statistics, in the rolled felt cutting test, the lateral force application method of the tool provided in this application reduced the torque of the arm joint by about 40%.
[0041] In this embodiment, a counterweight 3 is also provided on the tool holder 2, and the weight of the counterweight 3 is adjustable. The accompanying drawings show an example where both tool holders 2 are equipped with counterweights 3. Of course, a counterweight 3 can also be provided on only one tool holder 2. The counterweight 3 can adjust the position of the tool's center of gravity to adapt to the cutting torque requirements of materials of different thicknesses. For example, adding weight to the counterweight 3 with felt can increase the downward pressure.
[0042] In one specific embodiment, the counterweight component 3 can be installed at the end of the handle 2, which is relatively easy to install and does not affect the operator's grip.
[0043] In one specific embodiment, the counterweight 3 is installed at the end of the handle 2 near the blade 11 for easy adjustment. In the accompanying drawings, the counterweights 3 on the two handles 2 can be installed on the same side or on different sides.
[0044] In this embodiment, the cutting tool further includes a screw component 4 and an internal thread component that are engaged by a threaded pair. One of the screw component 4 and the internal thread component is disposed on the tool holder 2, and the other is disposed on the counterweight component 3. The counterweight component 3 is connected to the tool holder 2 through the threaded pair between the screw component 4 and the internal thread component. The threaded connection facilitates the disassembly and replacement of the counterweight component 3.
[0045] In this embodiment, at least a portion of the gripping surface of the knife handle 2 is an anti-slip structure 21, which prevents the hand from slipping and improves operational safety. The anti-slip structure 21 can be a protrusion, a recess, or an anti-slip groove, etc., which can increase the friction with the hand.
[0046] In another embodiment, at least a portion of the grip surface of the handle 2 is provided with soft rubber 22, which can also increase the friction with the hand and provide a higher level of hand comfort.
[0047] Of course, the gripping surface of the knife handle 2 can be provided with both an anti-slip structure 21 and soft rubber 22, with the anti-slip structure 21 and soft rubber 22 arranged at least partially offset. This can balance the needs of high friction and comfort. This application shows an example of soft rubber spirally wound around the knife handle 2.
[0048] In one embodiment, the main body 12 of the handle 2 is made of hard plastic 24, which has high strength and is relatively lightweight.
[0049] In this embodiment, the handle 2 includes a first end and a second end arranged along a second direction. The dimension of the handle 2 along the second direction is larger than the dimension of the blade along the second direction, and both the first end and the second end extend to the outside of the corresponding side of the blade 1. The blade 11 can be completely located between the handles 2, which is beneficial for protecting the operator.
[0050] In this embodiment, the handle 2 has an inwardly curved arc 23 on the side opposite to the blade to fit the human hand.
[0051] As mentioned above, when the tool has cutting edges 11 on both sides along the second direction, bidirectional pushing and pulling cutting is allowed. This solves the efficiency loss problem caused by the need to repeatedly reset the tool during unidirectional cutting, and is particularly suitable for long-distance continuous cutting operations. The efficiency is especially significant in the edge trimming process of felt rolls.
[0052] In this way, the cutting tool of this application deeply integrates the principles of ergonomics into the mechanical structure design of the cutting tool. Through the organic integration of the dual-handle lateral operation mode and the bidirectional cutting function, it specifically addresses the pain points of stability and safety in specific operating scenarios in the monocrystalline silicon industry.
[0053] The blade 11 is adapted for cutting single-crystal silicon roll felt. In this application, the length and width of the main body 12 and the blade 11 can be determined according to the specific application environment. For example, when cutting roll felt, the length of the blade 11 is usually greater than or equal to the width of one side of the roll felt.
[0054] In the description of embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0055] The above are merely preferred embodiments 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 should also be considered within the scope of protection of this utility model.
Claims
1. A cutting tool for cutting materials, characterized in that, include: The blade (1) includes a blade (11) extending in a first direction, and the blade (1) also includes a first sidewall and a second sidewall arranged in the first direction. The number of the knife handles (2) is two, and the two knife handles (2) are respectively installed on the first side wall and the second side wall. The knife handles (2) extend along a second direction, and the second direction is arranged at an angle to the first direction.
2. The cutting tool for material cutting according to claim 1, characterized in that, The handle (2) is also provided with a counterweight component (3), the weight of which is adjustable.
3. The cutting tool for material cutting according to claim 2, characterized in that, The counterweight component (3) is installed at the end of the handle (2).
4. The cutting tool for material cutting according to claim 3, characterized in that, The counterweight component (3) is installed at the end of the handle (2) near the blade (11).
5. The cutting tool for material cutting according to claim 2, characterized in that, It also includes a screw component (4) and an internal thread component that are engaged by a threaded pair. One of the screw component (4) and the internal thread component is disposed on the tool holder (2), and the other is disposed on the counterweight component (3). The counterweight component (3) is connected to the tool holder (2) through the threaded pair that is engaged between the screw component (4) and the internal thread component.
6. The cutting tool for material cutting according to any one of claims 1 to 5, characterized in that, The gripping surface of the knife handle (2) has at least a portion of an anti-slip structure (21). Alternatively, at least a portion of the gripping surface of the handle (2) is provided with soft rubber (22). Alternatively, the gripping surface of the handle (2) is provided with both an anti-slip structure (21) and soft rubber, wherein the anti-slip structure and the soft rubber are at least partially staggered. Alternatively / and, the main body material of the handle (2) is hard plastic.
7. The cutting tool for material cutting according to any one of claims 1 to 5, characterized in that, The handle (2) includes a first end and a second end arranged along the second direction. The dimension of the handle (2) along the second direction is greater than the dimension of the blade (1) along the second direction, and both the first end and the second end extend to the outside of the corresponding side of the blade (1).
8. The cutting tool for material cutting according to any one of claims 1 to 5, characterized in that, The handle (2) has an inwardly curved arc (23) on the side opposite to the blade (1) to fit the human hand.
9. The cutting tool for material cutting according to any one of claims 1 to 5, characterized in that, The cross-section of the blade (11) is V-shaped.
10. The cutting tool for material cutting according to any one of claims 1 to 5, characterized in that, The blade is provided with the blade (11) on both sides along the second direction. Alternatively / and, the blade (11) is a blade (11) adapted for cutting single-crystal silicon roll felt. Or / and, the first direction and the second direction are perpendicular; Alternatively / and, the blade angle of the blade (11) ranges from 15° to 60°.