Monofilament cutting device convenient to fix

Abstract

The utility model relates to the technical field of cutting devices, in particular to a monofilament cutting device convenient to fix. According to the technical scheme, the cutting device comprises a cutting structure, a fixing structure, an adjusting structure and a flow guide structure. The cutting structure comprises a machine shell, a first motor located at the rear end of the machine shell, a rotating wheel located at the output end of the first motor and rotationally installed in the machine shell, and cutting knives distributed on the outer wall of the rotating wheel in an annular array mode. The fixing structure comprises a sleeve shell connected with one end of the machine shell in a penetrating mode, a negative pressure chamber formed in the sleeve shell, an adsorption hole formed in the inner wall of the sleeve shell and communicated with the negative pressure chamber, a negative pressure draught fan located below the sleeve shell, and a suction pipe communicating the suction end of the negative pressure draught fan and the negative pressure chamber. According to the filament cutting device, the cutting structure and the fixing structure are matched, so that the problems that filaments are loose and are conveyed uninterruptedly, clamping and fixing are inconvenient during cutting, and the lengths of the cut filaments are different easily are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting devices, in particular to a monofilament cutting device which is easy to fix. Background Art

[0002] In the manufacture of synthetic fibers, knitted or crocheted fabrics and their products, as well as high-performance fibers and composite materials, the raw materials undergo polymerization reactions to polymerize monomers into high-molecular polymers, which are then drawn into filaments through an extruder or stretcher. Heat or chemical treatment is introduced to solidify the fibers, and the filaments are then cut by a cutting device to form fiber bundles of the desired length.

[0003] Publication number CN203976997U retrieved discloses a continuous monofilament cutting device, comprising a housing, an upper conveyor chain, a lower conveyor chain, a knife gate, and a knife roller. The upper conveyor chain is located at the upper portion of the housing, the lower conveyor chain is located at the lower portion of the housing, the knife gate is located between the upper and lower conveyor chains and at the ends of the upper and lower conveyor chains, and the knife roller is located on one side of the knife gate and within the housing. Compared with the prior art, the knife roller of the utility model has multiple cutting knives on it, and can automatically perform continuous processing in conjunction with two conveyor chains, with uniform cutting length. Moreover, the knife roller is placed within the housing to prevent the monofilament from being scattered after cutting, resulting in high processing efficiency and value for promotion and application.

[0004] This patented technology has the advantage of preventing the monofilaments from being scattered after cutting, but it still has some shortcomings during use. During the filament cutting process, because the filaments are loose and in uninterrupted transportation, it is inconvenient to clamp and fix them during cutting, which easily leads to the situation that the cut filaments are of different lengths. For this reason, we propose a monofilament cutting device that is easy to fix to solve the existing problem. Utility Model Content

[0005] The purpose of the utility model is to address the problems existing in the background technology and to provide a monofilament cutting device that is easy to fix.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a monofilament cutting device that is easy to fix, comprising a cutting structure, a fixing structure, an adjustment structure, and a flow-guiding structure, wherein the cutting structure comprises a housing, a motor 1 located at the rear end of the housing, a rotor located at the output end of the motor 1 and rotatably mounted inside the housing, and cutting blades distributed in an annular array on the outer wall of the rotor;

[0007] The fixed structure includes a sleeve connected to one end of the casing, a negative pressure chamber opened inside the sleeve, an adsorption hole opened on the inner wall of the sleeve and connected to the negative pressure chamber, a negative pressure fan located below the sleeve, and a suction pipe connecting the suction end of the negative pressure fan and the negative pressure chamber.

[0008] Preferably, the regulating structure comprises a valve body connected to the center of the suction pipe, a ball valve is provided inside the valve body, and both ends of the ball valve are provided with a rotating shaft rotatably mounted inside the valve body. The ball valve is rotatably supported by the inner wall of the valve body through the rotating shaft.

[0009] Preferably, a second motor is provided at one end of the valve body, the output end of which is connected to a rotating shaft. Sealing rings are embedded in the inner walls of both the upper and lower ends of the valve body, and the ball valve is rotatably mounted on the sealing rings. When the second motor is in operation, it drives the rotating shaft to rotate, causing the ball valve to rotate within the valve body, which is sealed by the sealing ring during rotation.

[0010] Preferably, the ball valve is provided with valve ports at both the front and rear ends, and the ball valve further conducts the suction airflow through the corresponding suction pipe.

[0011] Preferably, a discharge port is provided in the lower end of the housing, and exhaust holes are provided in one end of the housing at equal intervals. The filaments are output through the discharge port, and the exhaust holes discharge excess gas from the housing.

[0012] Preferably, the flow-guiding structure comprises an annular tube located on one side of the casing, one end of the annular tube being provided with an annular air outlet nozzle facing the casing, and the lower end of the annular tube being connected to an air supply pipe. The air supply pipe conveys airflow through the annular air outlet nozzle and delivers an annular airflow into the casing, thereby assisting the flow of the conveyed filaments.

[0013] Preferably, the guide structure includes an installation frame located inside the shell, a guide roller rotatably installed inside the lower end of the installation frame, and the guide roller is connected to the inner wall of the upper end of the shell with symmetrically distributed springs; the installation frame is elastically installed inside the upper end of the shell through the spring, and the upper end of the conveyed filament is rolled and pressed by the guide roller to limit it.

[0014] Preferably, the upper end of the mounting frame is provided with a guide rod positioned within the spring, and the inner wall of the upper end of the housing is provided with symmetrically distributed positioning holes, and the upper ends of the guide rods are slidably mounted within the positioning holes. When the spring is extended or retracted, the guide rods slide within the spring and the positioning holes to position the spring, thereby preventing the spring from deflecting and limiting the spring.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In the utility model, the filament enters the casing through the casing, and the rotating wheel driven by the motor drives the cutting knife to cut the filament. A negative pressure chamber is opened inside the upper end of the casing, and an adsorption hole passes through the casing and the negative pressure chamber, which intermittently adsorbs the filament, thereby temporarily fixing the filament. When cutting the filament, the consistency of the cutting length is guaranteed, and the stability of filament cutting is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the rear-view stereoscopic structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the main sectional three-dimensional structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the main cross-sectional three-dimensional structure of the casing of the present invention;

[0021] Figure 5 This is a schematic diagram of the main cross-sectional three-dimensional structure of the ring tube of the present utility model;

[0022] Figure 6 It is a schematic diagram of the side sectional three-dimensional structure of the valve body of the present invention.

[0023] Reference numerals: 100, cutting structure; 101, housing; 102, motor 1; 103, discharge port; 104, exhaust hole; 105, rotating wheel; 106, cutting blade;

[0024] 200, fixed structure; 201, casing; 202, adsorption hole; 203, negative pressure chamber; 204, suction pipe; 205, negative pressure fan;

[0025] 300, adjustment structure; 301, rotating shaft; 302, ball valve; 303, valve port; 304, sealing ring; 305, motor 2; 306, valve body;

[0026] 400, guide structure; 401, air supply pipe; 402, ring pipe; 403, mounting frame; 404, guide roller; 405, guide rod; 406, spring; 407, positioning hole; 408, air outlet nozzle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figures 1-6As shown, the present invention proposes a monofilament cutting device that is easy to fix, including a cutting structure 100, a fixing structure 200, an adjustment structure 300 and a flow guide structure 400. The cutting structure 100 includes a housing 101, a motor 102 located at the rear end of the housing 101, a rotating wheel 105 located at the output end of the motor 102 and rotatably mounted inside the housing 101, and cutting blades 106 distributed in an annular array on the outer wall of the rotating wheel 105.

[0029] The fixed structure 200 includes a casing 201 connected to one end of the housing 101, a negative pressure chamber 203 provided inside the casing 201, a suction hole 202 provided on the inner wall of the casing 201 and connected to the negative pressure chamber 203, a negative pressure fan 205 located below the casing 201, and a suction pipe 204 connecting the suction end of the negative pressure fan 205 and the negative pressure chamber 203.

[0030] A discharge port 103 is provided inside the lower end of the housing 101, and exhaust holes 104 are provided inside one end of the housing 101 at equal intervals.

[0031] Based on the implementation steps of Example 1: After the polymer is drawn into filament solidified fibers through an extruder or a stretching machine, the filaments enter the interior of the casing 101 through the casing 201, the motor 102 drives the rotor 105 to rotate, and the rotor 105 drives the cutting knife 106 to rotate, cutting the filaments in stages, and the filaments are transported to the outside through the discharge port 103. In the manufacture of synthetic fibers, the manufacture of knitted or crocheted fabrics and their products, and the manufacture of high-performance fibers and composite materials, after the polymer is extruded or drawn into filament solidified fibers, the filaments are effectively cut and processed.

[0032] like Figures 1-6 As shown, the monofilament cutting device proposed by the present invention is easy to fix. Compared with the first embodiment, this embodiment further includes: an adjustment structure 300 includes a valve body 306 connected to the center of the suction pipe 204, a ball valve 302 is provided inside the valve body 306, and both ends of the ball valve 302 are provided with a rotating shaft 301 rotatably installed inside the valve body 306;

[0033] One end of the valve body 306 is provided with a second motor 305 whose output end is connected to the rotating shaft 301. The inner walls of the upper and lower ends of the valve body 306 are embedded with sealing rings 304. The ball valve 302 is rotatably mounted on the sealing ring 304.

[0034] The ball valve 302 is provided with valve ports 303 at both the front and rear ends;

[0035] The flow guide structure 400 includes an annular tube 402 located on one side of the casing 201. An annular air outlet nozzle 408 facing the casing 201 is provided at one end of the annular tube 402. The lower end of the annular tube 402 is connected to the air supply pipe 401.

[0036] The guide structure 400 includes a mounting frame 403 located inside the casing 201, a guide roller 404 rotatably mounted inside the lower end of the mounting frame 403, and symmetrically distributed springs 406 connected to the inner wall of the upper end of the casing 201.

[0037] The upper end of the mounting frame 403 is provided with a guide rod 405 located inside the spring 406. The inner wall of the upper end of the housing 201 is provided with symmetrically distributed positioning holes 407. The upper end of the guide rod 405 is slidably installed inside the positioning holes 407.

[0038] In this embodiment, during the filament cutting process, the air supply pipe 401 is connected to the positive pressure fan, and the air flow is transported to the ring pipe 402 through the air supply pipe 401, and the annular air flow is transported to the internal channel of the shell 201 through the air outlet nozzle 408. The filament is transported at the center of the ring pipe 402, and the filament is transported by the air flow. The filament is rolled and transported at the lower end of the guide roller 404, and the mounting frame 403 is elastically supported by the spring 406 to elastically press the filament. The guide roller 404 elastically presses the filament while rolling and guiding the filament, and when the suction force of the negative pressure fan 205 acts on the negative pressure through the suction pipe 204, the filament is transported. The suction hole 202 acts on the inside of the shell 201 and on the conveyed filament, and the motor 2 305 operates to drive the rotating shaft 301 to rotate, driving the ball valve 302 to rotate inside the valve body 306. When the valve port 303 corresponds to the suction pipe 204, the negative pressure suction force of the negative pressure fan 205 acts on the negative pressure chamber 203, and performs short-term adsorption and fixation during the long-line cutting process to achieve stable cutting of the long line. When cutting long lines, it is avoided that the length of the cut filaments is different due to uninterrupted transportation. By performing staged suction on the filaments and coordinating the staged cutting process, the length of the long line is consistent when cutting.

[0039] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A monofilament cutting device that is easy to fix, comprising a cutting structure (100), a fixing structure (200), an adjusting structure (300) and a flow guiding structure (400), characterized in that: The cutting structure (100) comprises a housing (101), a motor (102) located at the rear end of the housing (101), a rotating wheel (105) located at the output end of the motor (102) and rotatably mounted inside the housing (101), and cutting blades (106) distributed in an annular array on the outer wall of the rotating wheel (105); The fixed structure (200) comprises a casing (201) connected to one end of the housing (101), a negative pressure chamber (203) provided inside the casing (201), an adsorption hole (202) provided on the inner wall of the casing (201) and connected to the negative pressure chamber (203), a negative pressure fan (205) located below the casing (201), and a suction pipe (204) connecting the suction end of the negative pressure fan (205) and the negative pressure chamber (203).

2. The monofilament cutting device that is easy to fix according to claim 1, characterized in that: The regulating structure (300) includes a valve body (306) connected to the center of the suction pipe (204), a ball valve (302) is provided inside the valve body (306), and both ends of the ball valve (302) are provided with a rotating shaft (301) rotatably installed inside the valve body (306).

3. The monofilament cutting device that is easy to fix according to claim 2, characterized in that: One end of the valve body (306) is provided with a second motor (305) whose output end is connected to the rotating shaft (301). Sealing rings (304) are embedded and installed in the inner walls of the upper and lower ends of the valve body (306). The ball valve (302) and the sealing ring (304) are rotatably installed.

4. The monofilament cutting device that is easy to fix according to claim 2, characterized in that: The ball valve (302) is provided with valve ports (303) at both the front and rear ends.

5. The monofilament cutting device that is easy to fix according to claim 1, characterized in that: A discharge port (103) is provided inside the lower end of the casing (101), and exhaust holes (104) distributed at equal intervals are provided inside one end of the casing (101).

6. The monofilament cutting device that is easy to fix according to claim 1, characterized in that: The flow-guiding structure (400) comprises an annular tube (402) located on one side of the casing (201); one end of the annular tube (402) is provided with an annular air outlet nozzle (408) facing the casing (201); the lower end of the annular tube (402) is connected to the air supply pipe (401).

7. The monofilament cutting device that is easy to fix according to claim 1, characterized in that: The guide structure (400) comprises a mounting frame (403) located inside the casing (201), a guide roller (404) rotatably mounted inside the lower end of the mounting frame (403), and symmetrically distributed springs (406) connected to the inner wall of the upper end of the casing (201).

8. The monofilament cutting device that is easy to fix according to claim 7, characterized in that: The upper end of the installation frame (403) is provided with a guide rod (405) located inside the spring (406), and the inner wall of the upper end of the housing (201) is provided with symmetrically distributed positioning holes (407), and the upper end of the guide rod (405) is slidably installed inside the positioning hole (407).

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