Low-loss cutting equipment for non-woven fabric

Abstract

The utility model relates to low-loss cutting equipment for non-woven fabrics, and aims to solve the problems of waste of edge materials and insufficient cutting force caused by limitation of the width of a motor in the prior art. The equipment comprises a main rack, a movable cutter assembly, a fixed cutter assembly, a moving shaft, a mounting seat, a cutting roller, a guide roller, a control assembly, an operation platform and a winding device. The movable cutter assembly is fixed to the main machine frame through the movable shaft, the fixed cutter assemblies are installed on the installation base on the outer side of the main machine frame and matched with the cutting roller below to achieve precise cutting, material waste is avoided, and the cutting precision is improved. The fixed cutter assembly is suitable for non-woven fabrics with different hardness. The control assembly ensures the action accuracy of the movable cutter assembly and the fixed cutter assembly, the equipment structure is simplified, and the maintenance cost is reduced. According to the non-woven fabric cutting device, the non-woven fabric cutting efficiency and quality are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric cutting, and in particular to a low-loss cutting device for nonwoven fabrics. Background Technology

[0002] In the production process of nonwoven fabrics, the cutting process is a key step to ensure that the product reaches the required size. Chinese utility model patent application number 202021522432.6 provides an adjustable nonwoven fabric cutting device, which cuts the nonwoven fabric through an adjustment component and a cutting blade mounted on a frame. However, this technical solution still has shortcomings.

[0003] In actual production, due to the limitation of motor width, the cutting blade cannot completely cover the edge of the nonwoven fabric when it moves to the limit of the working area. This phenomenon results in some parts of the nonwoven fabric not being accurately cut during edge cutting, leading to material waste. In addition, when using a movable motor-driven cutting method to process harder nonwoven fabrics, insufficient cutting force affects the cutting effect, making it difficult to meet high-standard cutting quality requirements.

[0004] To overcome the above problems, it is necessary to design a new cutting device to improve cutting accuracy, reduce material waste, and enhance adaptability to nonwoven fabrics of different hardness, thereby improving overall production efficiency and product quality. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes a low-loss cutting device for non-woven fabrics, which can cut the edges of non-woven fabrics more precisely and with stronger cutting force.

[0006] The technical solution adopted by this utility model is: a low-loss cutting device for non-woven fabrics. The main structure consists of a main frame, a moving knife assembly, a moving shaft, a mounting base, a fixed knife assembly, a cutting roller, a guide roller, a control assembly, and an operating platform. The cutting device is set at the end of the discharge section in the non-woven fabric production line. After the non-woven fabric is produced from the discharge section, it passes through the outlet of the discharge section to the cutting device, and after being cut by the cutting device, it passes through the winding device.

[0007] As a preferred embodiment, the main frame is located behind the discharge section. The moving blade assembly for cutting nonwoven fabric is fixed to the main frame via a movable shaft. A mounting base is provided on the outside of the main frame, and the length of the mounting base is greater than the width of the main frame. Several sets of fixed blade assemblies for cutting nonwoven fabric are provided on the mounting base. Below the fixed blade assembly is a cutting roller for cooperating with the fixed blade assembly to cut the nonwoven fabric. Several sets of guide rollers for guiding the nonwoven fabric from the discharge section to the moving blade assembly and the fixed blade assembly are also provided inside the main frame. A control component for controlling the fixed blade assembly and the moving blade assembly is provided inside the main frame.

[0008] As a preferred embodiment, the mounting base is provided with a positioning structure with a trapezoidal cross-section, the length of the positioning structure being the same as that of the mounting base and the short side of its cross-section being connected to the mounting base.

[0009] As a preferred embodiment, the fixed blade assembly includes a housing, a cutting blade assembly, an air guide tube, a positioning groove, and bolts. The cutting blade assembly is disposed inside the housing and can move vertically within the housing. One end of the air guide tube, which provides power to the cutting blade, passes through the housing and connects to the cutting blade assembly, while the other end is connected to the control assembly. The positioning groove corresponds to the mounting base, and a positioning hole for fixing the fixed blade assembly is provided above the positioning groove. The bolt passes through the positioning hole to fix the fixed blade assembly to the mounting base.

[0010] As a preferred embodiment, the main frame is also provided with an operating platform for the operator to stand on.

[0011] As a preferred embodiment, a winding device for winding the cut nonwoven fabric is also provided, and the winding device is located at the rear of the main frame.

[0012] As a preferred embodiment, the cutting roller is a smooth cylindrical metal roller, and the length of the cutting roller is the same as the width of the main frame.

[0013] As a preferred embodiment, the control component consists of a protective shell, control circuitry, and cylinders. The protective shell is a hollow rectangular strip structure with a length equal to the width of the main unit. The control circuitry for controlling the movement of the moving blade assembly is located inside the protective shell. Cylinders for controlling the stationary blade assembly are also provided at both ends of the protective shell.

[0014] The beneficial effects of this utility model are:

[0015] To address the shortcomings of existing technologies, this invention provides a low-loss cutting device for nonwoven fabrics. Through optimized structural design, this invention achieves the following technical advantages:

[0016] Firstly, this invention provides a low-loss cutting device for nonwoven fabrics. The device includes a moving blade assembly and a fixed blade assembly. The moving blade assembly is fixed to the main frame via a movable shaft. Several sets of fixed blade assemblies and a cutting roller are mounted on a mounting base on the outer side of the main frame. The fixed blade assembly and the moving blade assembly work together to solve the problem of traditional cutting devices being unable to completely cover the edges of the nonwoven fabric due to motor width limitations. This avoids material waste, improves cutting accuracy, and achieves more precise cutting of the nonwoven fabric edges, resulting in more accurate dimensions of the cut nonwoven fabric and increasing the product qualification rate.

[0017] Secondly, this invention features a fixed blade assembly, including a housing, a cutting blade assembly that can move vertically within the housing, an air guide pipe, a positioning groove, and bolts. The cutting blade assembly is driven by the air guide pipe, allowing for flexible adjustment of the cutting force as needed. Combined with the cutting roller, it effectively enhances the cutting force. This improvement solves the problem of insufficient cutting force that may occur when cutting harder non-woven fabrics, enhances the equipment's adaptability to non-woven fabrics of varying hardness, and further improves production efficiency and product quality.

[0018] Thirdly, this invention integrates the wiring for controlling the moving and stationary blade assemblies. A control component is installed on the main frame, running through both ends. The control component consists of a protective shell, control wiring, and cylinders. The protective shell is a hollow rectangular strip structure with cylinders at both ends for controlling the stationary blade assembly. This compact and reasonable layout not only protects the internal control wiring from external environmental influences but also simplifies the overall structure of the equipment and reduces maintenance costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the mounting base.

[0022] Figure 3 This is a schematic diagram of the fixed-blade assembly;

[0023] In the diagram: 1. Main frame; 2. Moving blade assembly; 3. Moving shaft; 4. Mounting base; 5. Fixed blade assembly; 501. Housing; 502. Cutting blade assembly; 503. Air guide pipe; 504. Positioning groove; 505. Bolt; 6. Cutting roller; 7. Guide roller; 8. Control assembly; 9. Operating platform; 10. Rewinding device. Detailed Implementation

[0024] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0025] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "a," "an," or "the," etc., used in this utility model patent application specification and claims do not express a quantity limitation, but rather indicate the presence of at least one; terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0026] To more clearly describe the specific structural components of this low-loss cutting device for nonwoven fabric production, in conjunction with the attached... Figure 1 -Appendix Figure 3 This embodiment is described as follows:

[0027] In this embodiment, the main structure of the device consists of a main frame 1, a moving knife assembly 2, a moving shaft 3, a mounting base 4, a fixed knife assembly 5, a cutting roller 6, a guide roller 7, a control assembly 8, and an operating platform 9. The cutting device is located at the end of the discharge section in the nonwoven fabric production line. After the nonwoven fabric is produced from the discharge section, it passes through the outlet of the discharge section to the cutting device, and after being cut by the cutting device, it passes through the winding device 10.

[0028] In this embodiment, the main frame 1 of the cutting device is located behind the discharge section, and the moving blade assembly 2 is fixed to the main frame 1 via a moving shaft 3. A mounting base 4, covering the discharge port of the main frame 1, is provided on the outer side of the main frame 1. At each end of the mounting base 4 is a set of fixed blade assemblies 5 for cutting nonwoven fabric. Below the fixed blade assembly 5 are cutting rollers 6 that cooperate with it to achieve the cutting function. Furthermore, several sets of guide rollers 7 are provided inside the main frame 1. These guide rollers 7 are responsible for guiding the nonwoven fabric from the discharge section sequentially to the moving blade assembly 2 and the fixed blade assembly 5. In addition, a control component 8 is provided inside the main frame 1 for precisely controlling the movements of the fixed blade assembly 5 and the moving blade assembly 2.

[0029] Furthermore, the mounting base 4 is equipped with a positioning structure with a trapezoidal cross-section. The length of this positioning structure is the same as that of the mounting base 4, and the short side of its cross-section is connected to the mounting base 4. This design enhances the stability and rigidity of the mounting base 4, ensuring the accuracy of the installation position of the fixed tool assembly 5.

[0030] In this embodiment, a set of fixed blade assemblies 5 are provided at each end of the mounting base 4. The fixed blade assembly 5 includes a housing 501, a cutting blade assembly 502, an air guide pipe 503, a positioning groove 504, and a bolt 505. The cutting blade assembly 502 is located inside the housing 501 and can move vertically. One end of the air guide pipe 503 passes through the inside of the housing 501 and is connected to the cutting blade assembly 502, and the other end is connected to the control assembly 8. The cutting position of the cutting blade assembly 502 is controlled by air pressure. This not only controls the cutting thickness of the nonwoven fabric by changing the distance between the cutting blade assembly 502 and the cutting roller 6, but also allows the cutting blade assembly 502 to flexibly adjust the cutting force as needed, solving the problem of insufficient force that may occur when cutting harder nonwoven fabrics.

[0031] Furthermore, the positioning groove 504 corresponds to the mounting base 4, and the fixed blade assembly 5 is installed from both ends of the positioning structure on the mounting base 4. The upper end of the positioning groove is also provided with positioning holes for fixing the fixed blade assembly 5. The bolt 505 passes through the positioning holes to firmly fix the fixed blade assembly 5 on the mounting base 4. By loosening the bolt 505, the fixed blade assembly 5 can move horizontally on the mounting base 4. The fixed blade assembly can be adjusted to a suitable position according to the width of the nonwoven fabric produced, which enhances the applicability of the equipment.

[0032] In this embodiment, the control component 8 consists of a protective shell, control circuitry, and cylinders. The protective shell is a hollow rectangular strip structure with a length equal to the width of the main unit, and cylinders at both ends are used to control the fixed blade assembly 5. The control component 8 is compact and rationally designed, protecting the internal control circuitry from external environmental influences while simplifying the overall structure of the equipment and reducing maintenance costs. This design enables precise control of the moving blade assembly 2 and the fixed blade assembly 5, enhancing the stability and reliability of the system.

[0033] In this embodiment, to facilitate operation and maintenance by operators, an operating platform 9 is provided on the lower side of the main frame 1. This not only provides a safe operating environment but also facilitates daily maintenance. Meanwhile, a winding device 10 is provided at the rear of the main frame 1 to wind up the cut nonwoven fabric, ensuring that the cut nonwoven fabric can be promptly stored.

[0034] Operating steps:

[0035] In the first step, the staff selects to use either the moving knife assembly 2 or the fixed knife assembly 5 based on the width and hardness of the nonwoven fabric being produced. Depending on the actual situation, the moving knife assembly 2 and the fixed knife assembly 5 can also be used in combination.

[0036] In the second step, the operator controls the moving blade assembly 2 to move to the set position on the moving shaft 3 through the control component 8. If the fixed blade assembly 5 is used, the operator loosens the fixing bolt 505, moves the fixed blade assembly 5 to the set position, and then tightens the bolt 505 to fix the position of the fixed blade assembly 5.

[0037] The third step is to start the cylinder to move the cutting blade assembly 502 in the fixed blade assembly 5 out of the fixed blade assembly 5.

[0038] The fourth step is to start the machine, and the winding device 10 will wind up the cut nonwoven fabric.

[0039] It should be noted that although the present invention has been described through the above embodiments, there may be other various embodiments of the present invention. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and modifications to the present invention, but all such changes and modifications should fall within the scope of protection of the appended claims and their equivalents.

Claims

1. A low-loss cutting device for nonwoven fabrics, comprising a discharge section, a main frame (1), a moving blade assembly (2), and a moving shaft (3), wherein the main frame (1) is disposed behind the discharge section, and the moving blade assembly (2) is fixed to the main frame (1) via the moving shaft (3), characterized in that, The main frame (1) is provided with a mounting base (4) on the outside. The mounting base (4) is provided with several sets of fixed blade assemblies (5) for cutting nonwoven fabric. Below the fixed blade assembly (5) is a cutting roller (6) for cooperating with the fixed blade assembly (5) to cut nonwoven fabric. The main frame (1) is also provided with several sets of guide rollers (7) for guiding nonwoven fabric from the discharge section to the moving blade assembly (2) and the fixed blade assembly (5) in sequence. The main frame (1) is provided with a control assembly (8) for controlling the fixed blade assembly (5) and the moving blade assembly (2).

2. The low-loss cutting device for nonwoven fabrics according to claim 1, characterized in that, The mounting base (4) is provided with a positioning structure with a trapezoidal cross section. The length of the positioning structure is the same as that of the mounting base (4), and the short side of its cross section is connected to the mounting base (4).

3. The low-loss cutting device for nonwoven fabrics according to claim 1, characterized in that, The fixed blade assembly (5) includes a housing (501), a cutting blade assembly (502), and an air guide pipe (503). The cutting blade assembly (502) is located inside the housing (501) and can move in the vertical direction of the housing (501). One end of the air guide pipe (503) that provides power to the cutting blade passes through the inside of the housing (501) and is connected to the cutting blade assembly (502), and the other end is connected to the control assembly (8).

4. The low-loss cutting device for nonwoven fabrics according to claim 3, characterized in that, The fixed blade assembly (5) is also provided with a positioning groove (504) and a bolt (505). The positioning groove (504) corresponds to the mounting base (4), and a positioning hole for fixing the fixed blade assembly (5) is provided above the positioning groove (504). The bolt (505) passes through the positioning hole to fix the fixed blade assembly (5) on the mounting base (4).

5. A low-loss cutting device for nonwoven fabrics according to claim 1, characterized in that, The control component (8) consists of a protective shell, control lines and cylinders. The protective shell is a hollow rectangular strip structure with the same length as the width of the host. The control lines for controlling the movement of the moving blade assembly (2) are set inside the protective shell. Cylinders for controlling the fixed blade assembly (5) are also provided at both ends of the protective shell.

6. The low-loss cutting device for nonwoven fabrics according to claim 1, characterized in that, The main frame (1) is also provided with an operating platform (9) for the operator to stand on below the side.

7. The low-loss cutting device for nonwoven fabrics according to claim 1, characterized in that, It is also provided with a winding device (10) for winding up the cut nonwoven fabric, the winding device (10) being located behind the main frame (1).

8. A low-loss cutting device for nonwoven fabrics according to claim 1, characterized in that, The cutting roller (6) is a smooth cylindrical metal roller, and the length of the cutting roller (6) is the same as the width of the main frame (1).

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