Handheld cutting device

Abstract

The utility model belongs to the technical field of textile, and particularly relates to a handheld cutting device which comprises a tool apron, and one end of the tool apron is fixedly connected with a handheld frame. The rotary blade is fixedly mounted below the tool apron through a rotary shaft, and the rotary shaft is connected with the driving motor; the tensioning structure is installed below the two sides of the tool apron and comprises two sets of rotating rods and tensioning pressing blocks which are arranged on the two sides of the tool apron respectively, the rotating rods are installed on the tool apron in a hinged mode, limiting bases for limiting the rotating angles of the rotating rods are arranged on the outer sides of the rotating rods, and the tensioning pressing blocks are hinged to the rotating rods; the tensioning structure can press the fabric, other workers do not need to assist in spreading and tensioning, the rotating blade can conveniently cut the fixed fabric, the rotating blade is driven by the driving motor, the tensioning structure and the rotating blade are used in cooperation, the cutting efficiency is high, and the practicability is high. And the phenomenon that cutting fails or the cutting effect is poor due to fabric sliding when the fabric is cut is avoided, and a fabric notch is smooth.

Description

Technical Field

[0001] The utility model belongs to the technical field of textiles, and in particular relates to a handheld cutting device. Background Art

[0002] The textile industry is an important livelihood industry. In the process of weaving wool, silk thread, etc. into fabrics, it is often necessary to cut the fabrics. The existing electric cutting machines have high precision, but they occupy a large area and the cost of high precision is also high. It is difficult for general factories to afford too many electric cutting machines, and there are many fabrics that need to be cut, which leads to the phenomenon of the process being shelved. In addition, the transportation of fabrics is also cumbersome. Some smaller fabrics need to be cut manually by staff, and most hand-held tools are only scissors and blades. Cutting fabrics with hand-held blades is not only time-consuming and laborious, but also requires other staff to assist in flattening and tightening the fabrics. Otherwise, the cutting edges of the fabrics will be deformed and the cutting effect will be poor.

[0003] Therefore, a small, easy-to-use, high-precision handheld cutting device is needed. Utility Model Content

[0004] Aiming at the problem that the electric cutting machine in the prior art has a tight working time and small fabrics are left untreated and difficult to be processed in time, the utility model provides a handheld cutting device that can use a tensioning structure to assist in pressing and cutting, and use a push rod and a tensioning block to push the fabric to both sides. The tensioning block with a large friction force presses the fabric, making it easier for the cutting knife to cut.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a handheld cutting device, the key is: including

[0006] A knife holder, one end of which is fixedly connected to a hand-held frame;

[0007] The rotating blade is fixedly mounted below the blade holder by means of a rotating shaft, and the rotating shaft is connected to a driving motor;

[0008] The tensioning structure is installed below both sides of the knife seat, and includes two groups of rotating rods and tensioning blocks respectively arranged on both sides of the knife seat. The rotating rod is hingedly installed on the knife seat, and a limit seat is arranged on the outside to limit the rotation angle of the rotating rod. The tensioning block is hinged to the rotating rod.

[0009] After the fabric is compressed by the tensioning structure, the rotating blade can be conveniently used to cut the fixed fabric. The tensioning structure can compress the fabric, and no other staff is required to assist in tightening it, thereby reducing labor costs and avoiding the phenomenon of fabric sliding when cutting the fabric, resulting in cutting failure or poor cutting effect. The rotating blade is driven by a drive motor, with fast cutting efficiency and smooth fabric incision.

[0010] Preferably, each group of rotating rods is provided with 3-5 rods, and a clamping roller is installed under the tensioning block, and the clamping roller is made of rubber.

[0011] The pressing roller can make the cutting device move along the fabric, and can cut longer fabrics without the assistance of other staff, thus reducing the labor cost. The pressing roller can press the fabric while moving forward, so that the rotating blade can cut the tensioned fabric, ensuring the cutting process, making the cut edge of the fabric smooth, and reducing fabric waste.

[0012] Preferably, the maximum angle between the rotating rod and the knife holder is α, and the angle α gradually increases from the front end of the knife holder to the hand-held frame.

[0013] The angle between the rotating rod and the knife holder gradually increases from the front end to the rear end of the handheld frame, which can gradually increase the distance between each set of pressing rollers on both sides of the knife holder from the front end to the rear end, so that the fabric is gradually pushed outward and pressed to both sides from the front end to the rear end, which is convenient for cutting.

[0014] Preferably, the pressing roller exceeds the front end of the knife seat by 2-5 cm.

[0015] The pressing roller exceeds the front end of the knife seat, and can contact the fabric first to press the fabric, and then the knife seat brings the rotating blade to contact the fabric for cutting, which can ensure that the fabric is cut in a compressed state.

[0016] Preferably, an arc-shaped baffle is provided at one end of the handheld frame close to the rotating blade, and the arc-shaped baffle is 3-5 cm away from the rotating blade.

[0017] The arc-shaped baffle can isolate the rotating blade from the hand-held frame to protect the staff from being scratched by the blade. At the same time, the arc-shaped baffle is at a certain distance from the rotating blade to avoid interference and damage to the rotating blade.

[0018] Preferably, a base is further provided below the knife holder, and the base has two bottom plates provided below the clamping roller, a processing groove for the rotating blade is reserved between the two bottom plates, and the bottom plate has the freedom to move up and down along the handheld frame.

[0019] The base is used to support the fabric to avoid the fabric being unable to be cut due to having nowhere to lay flat. The bottom plate can move up and down along the handheld frame within a certain distance. The handheld frame is pressed down to move the bottom plate up relative to the handheld frame. The bottom plate also cooperates with the clamping roller. The clamping roller pushes the fabric to both sides with the rotating rod to tighten the fabric, and compresses the fabric from the top and bottom to assist the rotating blade in cutting. At the same time, a processing groove is left between the two bottom plates for the rotating blade to cut the fabric, which facilitates the rotating blade to rotate and cut.

[0020] Preferably, the bottom surface of the bottom plate is 2-5 cm lower than the lowest end of the rotating blade.

[0021] The bottom surface of the bottom plate is 2-5 cm lower than the lowest end of the rotating blade, which can leave a working space for the rotating blade and prevent the rotating blade from being interfered by the outside world.

[0022] Preferably, protective plates are provided on both sides of the rotating blade, and the protective plates are clamped on both sides of the blade seat.

[0023] The protective plate can isolate the rotating blades to prevent workers from being injured.

[0024] Preferably, the protective plate is made of transparent plastic material and has a thickness of 1-5 mm.

[0025] The protective plate is made of transparent plastic with a light texture, which reduces the overall weight. At the same time, the transparent material makes it convenient for staff to observe the status of the rotating blade.

[0026] The beneficial effects of the utility model are as follows: the tensioning structure can compress the fabric, and no other staff is required to assist in spreading and tightening it, so that the rotating blade can cut the fixed fabric conveniently. The rotating blade is driven by a driving motor, and the tensioning structure and the rotating blade are used together, so the cutting efficiency is fast, and the phenomenon of fabric sliding during cutting, resulting in cutting failure or poor cutting effect, is avoided, so that the fabric cut is smooth;

[0027] The pressing roller can move on the fabric, driving the cutting knife to move forward to continuously cut the fabric, which is suitable for fabrics that need to be cut over a long distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the axial structure of the handheld cutting device in the embodiment;

[0029] Figure 2 It is a front view structural schematic diagram of the handheld cutting device in the embodiment;

[0030] Figure 3 It is a schematic diagram of the exploded structure of the handheld cutting device in the embodiment;

[0031] Figure 4 is a structural schematic diagram of a tensioning structure of a handheld cutting device in an embodiment;

[0032] Figure 5 Schematic diagram of the structure of the knife holder of the handheld cutting device in the embodiment;

[0033] In the figure: 1 represents the tool holder; 2 represents the rotating blade; 201 represents the rotating shaft; 3 represents the tensioning structure; 301 represents the rotating rod; 302 represents the tensioning block; 303 represents the clamping roller; 304 represents the limit seat; 4 represents the hand-held frame; 401 represents the arc baffle; 5 represents the base; 501 represents the bottom plate; 502 represents the processing groove; 6 represents the protective plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0035] Specific implementation examples Figure 1 , 2 , 3, 4 and 5, a handheld cutting device, the key is: comprising a knife holder 1, one end of the knife holder 1 is fixedly connected to a handheld frame 4;

[0036] The rotating blade 2 is fixedly mounted below the blade holder 1 by means of a rotating shaft 201, the rotating shaft 201 is connected to the driving motor, and the rotating shaft 201 is fixed on the blade holder 1 through a bearing;

[0037] The tensioning structure 3 is installed below the two sides of the tool holder 1, and includes two groups of rotating rods 301 and tensioning blocks 302 respectively arranged on both sides of the tool holder 1. The rotating rod 301 is hingedly installed on the tool holder 1, and a limit seat 304 is arranged on the outside to limit the rotation angle of the rotating rod 301. The tensioning block 302 is hinged to the rotating rod 301.

[0038] like Figure 1 , 2 As shown in , 3, 4 and 5, each group of rotating rods 301 is provided with 3-5 pieces, and a clamping roller 303 is installed under the tensioning block 302, and the clamping roller 303 is made of rubber.

[0039] like Figure 1 , 2 As shown in Figures 3, 4 and 5, the maximum angle between the rotating rod 301 and the knife holder 1 is α, and the angle α gradually increases from the front end of the knife holder 1 to the hand-held frame 4.

[0040] like Figure 1 , 2 As shown in FIGS. 3, 4 and 5, the clamping roller 303 exceeds the front end of the knife holder 1 by 2-5 cm.

[0041] like Figure 1 , 2 As shown in Figures 3, 4 and 5, an arc-shaped baffle 401 is provided at one end of the hand-held frame 4 close to the rotating blade 2, and in order to avoid collision between the arc-shaped baffle 401 and the rotating blade 2, the distance between the two is 3-5 cm.

[0042] like Figure 1 , 2As shown in Figures 3, 4 and 5, a base 5 is further provided below the knife holder 1. The base 5 has two bottom plates 501 provided below the clamping roller 303. A processing groove 502 for the rotating blade 2 is reserved between the two bottom plates 501. The bottom plate 501 has the freedom to move up and down along the hand-held frame 4. Specifically, the bottom plate 501 and the hand-held frame 4 are connected by an elastic member, and a guide column is provided below the hand-held frame 4. The bottom plate 501 can move up and down along the guide column, so that the staff can adjust the distance between the base 5 and the rotating blade 2 by pressing down the hand-held frame 4.

[0043] In order to prevent the rotating blade 2 from interfering with the outside, the bottom surface of the bottom plate 501 is 2-5 cm lower than the lowest end of the rotating blade 2 .

[0044] like Figure 1 , 2 , 3 and 4, protective plates 6 are provided on both sides of the rotating blade 2, and the protective plates 6 are clamped on both sides of the blade holder 1.

[0045] For easy observation, the protection plate 6 is made of transparent plastic material with a thickness of 1-5 mm.

[0046] Working principle: This solution is used for some fabrics with small areas or that are inconvenient to transport to large cutting machines. The fabrics are laid flat. If there is not enough space on the desktop, the auxiliary cutting position is used, such as the line drawing method, and the fabrics to be cut are stacked and placed. After the part to be cut is determined, the fabric is placed on the bottom plate 501. The part to be cut of the fabric is located below the rotating blade 2. The staff presses down the hand-held frame 4 to move the bottom plate 501 upward relative to the hand-held frame 4, and cooperates with the clamping roller 303 to clamp the fabric from the upper and lower directions. The clamping roller 303 pushes and squeezes the fabric to both sides with the rotating rod 301, so that the fabric is stretched and laid flat on the bottom plate. 501; the pressing roller 303 extends beyond the front end of the knife seat 1 and contacts the fabric first, causing the fabric to be tensioned. The tensioned fabric is rotated and cut by the rotating blade 2 at the rear. This structure prevents the fabric from wrinkling and slipping, and can ensure that the fabric is cut along a predetermined direction, ensure the cutting quality of the fabric, and make the cutting edge of the fabric smooth; the protective plate 6 and the arc baffle 401 can be arranged around the rotating blade 2, which can not only protect the staff, but also prevent the outside from interfering with the rotating blade 2. At the same time, the protective plate 6 adopts a transparent structure, which is convenient for the staff to observe the working status of the rotating blade 2 and the shape of the fabric being cut at any time.

[0047] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A handheld cutting device, characterized in that: include A knife holder (1), one end of which is fixedly connected to a hand-held frame (4); The rotating blade (2) is fixedly mounted below the blade holder (1) by means of a rotating shaft (201), and the rotating shaft (201) is connected to a driving motor; The tensioning structure (3) is installed below the two sides of the knife seat (1), and comprises two groups of rotating rods (301) and tensioning blocks (302) respectively arranged on the two sides of the knife seat (1); the rotating rod (301) is hingedly installed on the knife seat (1), and a limit seat (304) for limiting the rotation angle of the rotating rod (301) is arranged on the outside; the tensioning block (302) is hingedly connected to the rotating rod (301).

2. A handheld cutting device according to claim 1, characterized in that: Each group of rotating rods (301) is provided with 3 to 5 pieces, and a pressing roller (303) is installed below the tensioning block (302), and the pressing roller (303) is made of rubber.

3. A handheld cutting device according to claim 2, characterized in that: The maximum angle between the rotating rod (301) and the knife seat (1) is α, and the angle α gradually increases from the front end of the knife seat (1) to the hand-held frame (4).

4. A handheld cutting device according to claim 2, characterized in that: The pressing roller (303) exceeds the front end of the knife seat (1) by 2-5 cm.

5. A handheld cutting device according to claim 1, characterized in that: An arc-shaped baffle (401) is provided at one end of the handheld frame (4) close to the rotating blade (2), and the distance between the arc-shaped baffle (401) and the rotating blade (2) is 3-5 cm.

6. A handheld cutting device according to claim 1, characterized in that: A base (5) is also provided below the blade holder (1), and the base (5) has two bottom plates (501) provided below the pressing roller (303), a processing groove (502) for the rotating blade (2) is reserved between the two bottom plates (501), and the bottom plate (501) has the freedom to move up and down along the handheld frame (4).

7. A handheld cutting device according to claim 6, characterized in that: The bottom surface of the bottom plate (501) is 2-5 cm lower than the lowest end of the rotating blade (2).

8. A handheld cutting device according to claim 1, characterized in that: Protective plates (6) are provided on both sides of the rotating blade (2), and the protective plates (6) are clamped on both sides of the blade seat (1).

9. A handheld cutting device according to claim 8, characterized in that: The protective plate (6) is made of transparent plastic material and has a thickness of 1-5 mm.

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