Splitting machine for needled felt production

Abstract

The utility model discloses a splitting machine for needled felt production, which belongs to the technical field of splitting machines and comprises a mounting frame, a dust collecting component is arranged at the bottom end of the mounting frame, a splitting component and a lifting component are respectively arranged on the inner side of the mounting frame, the lifting component is positioned below the splitting component, and the dust collecting component is positioned below the lifting component. A driving assembly is arranged on the outer side of the mounting frame, a suction fan is arranged on the other side of the mounting frame, two guide rollers are rotationally connected to the outer end of the mounting frame, the slitting assembly comprises a cutter shaft, the cutter shaft is rotationally connected with the inner side wall of the mounting frame, a lifting assembly is arranged below the slitting assembly, and a plurality of lifting rings are mounted on a rotating shaft; the annular cutters are arranged in the annular grooves, the lifting rings are arranged below the annular cutters, the annular grooves formed in the lifting rings are located below the annular cutters all the time, and when felt is cut, the felt can be supported by the lifting rings, so that the felt cannot fall when making contact with the annular cutters, the felt can make contact with the annular cutters stably, and the flatness of the cut edge is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slitting machines, and more specifically to a slitting machine for producing needle-punched felt. Background Art

[0002] A felt slitting machine is a device used to cut and process felt materials. It is usually used in felt product factories, textile factories and other production sites. Felt is a fiber material, usually made of wool, polyester fiber, polypropylene fiber, etc. It is often used to make carpets, clothing, packaging materials, etc. The felt production slitting machine uses cutting tools such as blades or knife wheels to cut felt or similar materials into required sizes and shapes to meet the production needs of different products. It plays a key role in the production process of felt products, can improve production efficiency, reduce labor costs, and ensure product quality and specification consistency.

[0003] The Chinese patent publication number CN214394358U discloses an automatic felt slitting machine. By setting a smoothing device, a smoothing plate in the smoothing device can first smooth the felt at the blade to make the felt flat. The width of the felt strips after slitting is more uniform and the slitting quality is higher. By setting a clearance groove on the smoothing plate, the smoothing plate can uniformly smooth the felt upstream and on both sides of the blade, so that the smoothing area is larger and the smoothing effect is better.

[0004] When the felt is to be cut, it is necessary to pass the felt under the blade and contact the blade to be cut. The felt is thicker and therefore heavier. When there is no proper supporting device under the blade in the above scheme, the felt is prone to fall down when contacting the blade. The falling of the felt during cutting can easily lead to unstable contact between the tool and the felt, resulting in quality problems such as uneven cutting edges and burrs.

[0005] Therefore, it is necessary to provide a slitting machine for needle-punched felt production to solve the above problems. Utility Model Content

[0006] The utility model provides a slitting machine for needle-punched felt production, which can improve the problem in the related art that the felt is prone to falling down when in contact with a blade. The felt falling down during cutting can easily lead to unstable contact between the blade and the felt, resulting in quality problems such as uneven cutting edges and burrs.

[0007] An embodiment of the present application provides a slitter for the production of needle-punched felts, including a mounting frame. A dust collection assembly is provided at the bottom end of the mounting frame. A slitting assembly and a lifting assembly are respectively provided inside the mounting frame. The lifting assembly is located below the slitting assembly, and the dust collection assembly is located below the lifting assembly. A driving assembly is provided on the outer side of the mounting frame, and a suction fan is provided on the other side of the mounting frame. Two guide rollers are rotatably connected to the outer end of the mounting frame. The slitting assembly includes a cutter shaft, and the cutter shaft is rotatably connected to the inner side wall of the mounting frame. A plurality of mounting bushings are sleeved on the outer end of the cutter shaft, and a circular knife is installed on the outer periphery of each of the plurality of mounting bushings. The lifting assembly includes a rotating shaft, and the rotating shaft is rotatably connected to the inner side wall of the mounting frame. A plurality of lifting rings are sleeved on the outer end of the rotating shaft, and a limiting device is installed at the outer end of each of the plurality of lifting rings. The number of the lifting rings corresponds to the number of the circular knives, and a circular groove adapted to the circular knife is formed on the outer periphery of the lifting ring.

[0008] In the above technical solution of the embodiment of the present application, it has at least the following technical effects:

[0009] (1) By providing a lifting assembly below the slitting assembly and installing a plurality of lifting rings on the rotating shaft, a lifting ring is provided below each circular knife, and the circular groove provided on the lifting ring is always located below the circular knife. When the felt is cut, it will be supported by the lifting ring, so that the felt cannot fall when it contacts the circular knife, enabling it to contact the circular knife smoothly and improving the flatness of the cutting edge.

[0010] (2) A dust collection assembly is provided below the lifting assembly. Since the felt is relatively rough and has a lot of short fibers, the fibers are likely to be scattered into the air when it is cut. By using a suction fan to pump air inside the box to form a negative pressure environment, the fibers generated by the slitting assembly cutting the felt will fall downward onto the first filter screen due to gravity and the attraction of negative pressure, thereby improving the cleanliness of the air.

[0011] In some embodiments, the slitting assembly further includes a plurality of bolts. A plurality of mounting blocks are fixedly connected to the inner side of the circular knife. A plurality of mounting grooves adapted to the mounting blocks are formed at the outer end of the mounting bushing. The bolt penetrates the inner side wall of the mounting bushing, and the bolt is threadedly connected to the mounting block.

[0012] In some embodiments, a plurality of movable grooves are formed at the outer end of the cutter shaft. A plurality of limiting blocks are fixedly connected to the inner side wall of the mounting bushing, and the limiting blocks are slidably connected to the movable grooves.

[0013] In some embodiments, the slitting assembly further includes a plurality of threaded rods. A plurality of threaded holes adapted to the threaded rods are formed at the inner side wall of the mounting bushing. One end of the threaded rod is rotatably connected to a butting block. The butting block is arc-shaped and made of rubber material.

[0014] In some embodiments, the drive assembly includes a motor and a belt, the motor is fixedly mounted on the outer end of the mounting frame, the output end of the motor is fixedly connected to a driving pulley, one end of the knife shaft passes through the side wall of the mounting frame, and one end of the knife shaft is fixedly connected to a passive pulley, and the passive pulley is connected to the driving pulley through a belt.

[0015] In some embodiments, the dust collection assembly includes a box body, the suction fan input end is connected to the interior of the box body, the top of the box body is fixedly connected to an outer shell, the inner wall of the box body is fixedly connected to two partitions, the two partitions are arranged to be tilted downward, a filter screen 1 is fixedly installed between the two partitions, and a filter screen 2 is installed at the connection between the box body and the suction fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a first overall structural schematic diagram of the utility model;

[0018] Figure 2 It is a second overall structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the cutting assembly of the utility model;

[0021] Figure 5 This is a schematic cross-sectional structural diagram of a cutting assembly of the utility model;

[0022] Figure 6 This is a schematic diagram of the lifting assembly structure of the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the dust collection component of the utility model;

[0024] Figure 8 It is a schematic cross-sectional structure diagram of the dust collecting component of the present utility model.

[0025] Description of the numbers in the figure:

[0026] 1. Mounting frame;

[0027] 2. Slitting assembly; 21. Knife shaft; 22. Ring knife; 23. Mounting bushing; 24. Movable slot; 25. Mounting block; 26. Limit block; 27. Mounting groove; 28. Bolt; 29. Contact block; 210. Threaded rod;

[0028] 3. Driving assembly; 31. Motor; 32. Belt; 33. Driven pulley; 34. Driving pulley;

[0029] 4. Lifting assembly; 41. Rotating shaft; 42. Lifting ring; 43. Limiting device;

[0030] 5. Suction fan;

[0031] 6. Guide roller;

[0032] 7. Dust collection assembly; 71. Box body; 72. Outer shell; 73. Partition board; 74. Filter screen I; 75. Filter screen II. Specific implementation manners

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and do not limit the present application. The terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion.

[0035] Since the width specification of the felt is unified during production, but the widths required by customers are all different, it is necessary to slit the felt. When slitting the felt, it is necessary to pass the felt under the blade and contact the blade to be cut. The felt is relatively thick, so its mass is relatively large. When there is no appropriate supporting device under the blade in the above solution, the felt is likely to sag when it contacts the blade. The sagging of the felt during cutting is likely to cause unstable contact between the tool and the felt, resulting in quality problems such as uneven cutting edges and burrs.

[0036] Based on this, it is possible to improve the situation that the felt is likely to sag when it contacts the blade in the related art. The sagging of the felt during cutting is likely to cause unstable contact between the tool and the felt, resulting in quality problems such as uneven cutting edges and burrs.

[0037] Please refer to Figures 1-8, A slitter for the production of needle-punched felt, comprising a mounting frame 1. A dust collection assembly 7 is provided at the bottom end of the mounting frame 1. Inside the mounting frame 1, a slitting assembly 2 and a lifting assembly 4 are respectively provided. The lifting assembly 4 is located below the slitting assembly 2, and the dust collection assembly 7 is located below the lifting assembly 4. A driving assembly 3 is provided on the outer side of the mounting frame 1, and an air suction fan 5 is provided on the other side of the mounting frame 1. Two guide rollers 6 are rotatably connected to the outer end of the mounting frame 1. The slitting assembly 2 includes a cutter shaft 21, which is rotatably connected to the inner side wall of the mounting frame 1. A plurality of mounting bushings 23 are sleeved on the outer end of the cutter shaft 21, and a circular knife 22 is installed on the outer periphery of each of the plurality of mounting bushings 23. The lifting assembly 4 includes a rotating shaft 41, which is rotatably connected to the inner side wall of the mounting frame 1, and a plurality of lifting rings 42 are sleeved on the outer end of the rotating shaft 41. A limiting device 43 is installed at the outer end of each of the plurality of lifting rings 42. The number of lifting rings 42 corresponds to the number of circular knives 22. A circular groove adapted to the circular knife 22 is provided on the outer periphery of the lifting ring 42.

[0038] Needle-punched felt is a kind of felt made by a needle punching machine. The main materials include wool, polyester chemical fiber, polypropylene fiber, etc. The device in this solution is mainly used for slitting needle-punched felt, that is, changing its width by slitting. If the length needs to be changed, a cutting device needs to be installed at the end of this device. A slitting assembly 2 and a lifting assembly 4 are installed inside the mounting frame 1. A dust collection assembly 7 is provided below the lifting assembly 4. Among them, the slitting assembly 2 is located at the top, and the lifting assembly 4 is located between the slitting assembly 2 and the dust collection assembly 7. A driving assembly 3 is provided at the outer end of the mounting frame 1. The driving assembly 3 is mainly used to provide power for the slitting assembly to make it rotate. By providing a lifting assembly 4 below the slitting assembly 2 and installing a plurality of lifting rings 42 on the rotating shaft 41, a lifting ring 42 is provided below each circular knife 22, and the circular groove provided on the lifting ring 42 is always located below the circular knife 22. When the felt is cut, it will be supported by the lifting ring 42, so that the felt cannot fall when it contacts the circular knife 22, enabling it to contact the circular knife 22 smoothly and improving the flatness of the cutting edge. An air suction fan 5 is installed on the other side of the mounting frame 1. The air suction fan 5 is mainly used to cooperate with the dust collection assembly 7 for dust suction.

[0039] On the feeding side of the mounting frame 1, two guide rollers 6 are rotatably connected. The number of guide rollers 6 can be adjusted according to requirements. The guide rollers 6 are mainly used to guide the felt, so that the coiled felt can enter between the slitting assembly 2 and the lifting assembly 4 at an appropriate angle, improving the stability of slitting.

[0040] Optionally, in some embodiments, please refer to Figures 3-5, the slitting assembly 2 further includes a plurality of bolts 28. A plurality of mounting blocks 25 are fixedly connected to the inner side of the annular knife 22. A plurality of mounting grooves 27 adapted to the mounting blocks 25 are provided at the outer end of the mounting bushing 23. The bolts 28 penetrate the inner side wall of the mounting bushing 23, and the bolts 28 are threadedly connected to the mounting blocks 25.

[0041] A plurality of moving grooves 24 are provided at the outer end of the cutter shaft 21. A plurality of limiting blocks 26 are fixedly connected to the inner side wall of the mounting bushing 23. The limiting blocks 26 are slidably connected to the moving grooves 24.

[0042] The slitting assembly 2 further includes a plurality of threaded rods 210. A plurality of threaded holes adapted to the threaded rods 210 are provided in the inner side wall of the mounting bushing 23. One end of the threaded rod 210 is rotatably connected to an abutting block 29. The abutting block 29 is arc-shaped and is made of rubber material.

[0043] In this solution, the cutter shaft 21 is rotatably installed inside the mounting frame 1 and lies horizontally inside the mounting frame 1. A plurality of mounting bushings 23 are sleeved outside the cutter shaft 21. The number of the mounting bushings 23 can be adjusted according to requirements. It is worth mentioning that it needs to match the number of the lifting rings 42. A plurality of limiting blocks 26 are fixed inside the mounting bushing 23. A plurality of moving grooves 24 are provided outside the cutter shaft 21. By slidably connecting the limiting blocks 26 with the moving grooves 24, the mounting bushing 23 can drive the annular knife 22 to slide on the cutter shaft 21 to adjust the distance between the annular knives 22, which can be adjusted according to requirements. After adjusting the position, it is fixed by abutting the abutting block 29 against the outer end of the cutter shaft 21. Since the abutting block 29 is made of rubber material, it can be fixed by friction. The outer end of the abutting block 29 is rotatably connected to a threaded rod 210. Threaded holes are provided inside the mounting bushing 23. The threaded rod 210 is threadedly connected to the threaded holes. By rotating the threaded rod 210, the threaded rod 210 can drive the abutting block 29 to move. The limiting block 26 is slidably connected to the moving groove 24, which can not only move and adjust the distance, but also clamp the mounting bushing 23 so that it will not rotate with the cutter shaft 21 when rotating. At this time, the abutting block 29 only needs to limit the mounting bushing 23 from moving horizontally by friction. The cooperation of the abutting block 29 and the limiting block 26 can improve the stability during work.

[0044] A plurality of mounting blocks 25 are fixed to the inner side of the annular knife 22. A plurality of mounting grooves 27 are provided on one side of the outer end of the mounting bushing 23. By sliding the mounting blocks 25 into the mounting grooves 27, a plurality of through holes are provided inside the mounting bushing 23. Then, bolts 28 are used to penetrate the through holes on the mounting bushing 23 and are threadedly connected to the mounting blocks 25 inside the mounting bushing 23, so that the annular knife 22 can be fixed, and the annular knife 22 and the mounting bushing 23 are detachably connected, thereby facilitating the replacement of the annular knife 22.

[0045] Among them, the rotating shaft 41 is rotatably installed on the inner side wall of the mounting frame 1 in the same way as the cutter shaft 21. The lifting ring 42 is sleeved on the outer end of the rotating shaft 41. The limiting method of the lifting ring 42 is the same as that of the mounting shaft sleeve 23. The limiting device 43 fixed to the outer end is similar in structure to the threaded rod 210 and the abutting block 29, and both are limited by friction. When adjusting the position of the annular cutter 22, it is necessary to synchronously adjust the position of the lifting ring 42 so that the annular cutter 22 can always be located above the annular groove on the lifting ring 42.

[0046] Optionally, in some embodiments, please refer to Figure 3 , the driving assembly 3 includes a motor 31 and a belt 32. The motor 31 is fixedly installed at the outer end of the mounting frame 1. A driving pulley 34 is fixedly connected to the output end of the motor 31. One end of the cutter shaft 21 penetrates through the side wall of the mounting frame 1, and a driven pulley 33 is fixedly connected to one end of the cutter shaft 21. The driven pulley 33 is in transmission connection with the driving pulley 34 through the belt 32.

[0047] In this solution, the motor 31 is installed at the outer end of the mounting frame 1, and a driving pulley 34 is fixed to the output end. A driven pulley 33 is fixed to one end of the cutter shaft 21. Through the transmission connection of the belt 32, when the motor 31 drives the driving pulley 34 to rotate, the belt 32 can drive the driven pulley 33 to rotate, thereby providing power for the rotation of the cutter shaft 21, driving the annular cutter 22 to rotate, and cutting the felt.

[0048] Optionally, in some embodiments, please refer to Figure 7 and Figure 8 , the dust collection assembly 7 includes a box body 71. The input end of the suction fan 5 is connected to the inside of the box body 71. An outer shell 72 is fixedly connected to the top end of the box body 71. Two partition plates 73 are fixedly connected to the inner side wall of the box body 71. Both of the two partition plates 73 are arranged obliquely downward. A first filter screen 74 is fixedly installed between the two partition plates 73. A second filter screen 75 is installed at the connection between the box body 71 and the suction fan 5.

[0049] The dust collection component 7 mentioned above mainly functions to collect dust. The dust collection component 7 is arranged below the lifting component 4. A housing 72 is fixedly installed on the top of the box body 71, and the housing 72 just semi - surrounds the lifting component 4. Two partition plates 73 which are inclined downward are fixed inside the box body 71. A first filter screen 74 is fixed between the two partition plates 73. Since the felt is relatively rough and has many short fibers, when it is cut, the fibers are easily scattered into the air. An air suction fan 5 is arranged outside the dust collection component 7. The input end of the air suction fan 5, that is, the air suction end, is communicated with the inside of the box body 71. When the air suction fan 5 starts to work, it will pump air from the inside of the box body 71, creating a negative - pressure environment. The fibers generated by the cutting of the felt by the cutting component 2 will fall downward onto the first filter screen 74 under the action of gravity and negative - pressure attraction. At this time, the smaller fibers will pass through the first filter screen 74 and fall into the box body 71, and the larger ones will be collected on the first filter screen 74, thereby improving the air cleanliness. A second filter screen 75 is installed on the side wall of the box body 71, that is, at the connection with the air suction fan 5. The pore diameter of the second filter screen 75 is smaller than that of the first filter screen 74, which can prevent the fibers in the box body 71 from being sucked into the air suction fan 5. It is worth mentioning that a dust collection bag needs to be set at the air outlet end of the air suction fan 5 to prevent dust from flying around.

[0050] Working principle: When using this device, first, the positions of the circular knife 22, the mounting bushing 23, and the lifting ring 42 need to be adjusted. The outer end of the abutting block 29 is rotatably connected to a threaded rod 210. By rotating the threaded rod 210, the threaded rod 210 can drive the abutting block 29 to move. Since the limiting method of the lifting ring 42 is the same as that of the mounting bushing 23, the position of the lifting ring 42 can be adjusted in the same way, so that the circular knife 22 is located above the circular groove on the lifting ring 42. Then, guide the felt between the circular knife 22 and the lifting ring 42. By driving the knife shaft 21 to rotate through the driving component 3, the circular knife 22 can cut the felt. The dust collection component 7 arranged below mainly functions to collect dust. By pumping air from the inside of the box body 71 through the air suction fan 5, a negative - pressure environment is created. The fibers generated by the cutting of the felt by the cutting component 2 will fall downward onto the first filter screen 74 under the action of gravity and negative - pressure attraction, thereby improving the air cleanliness.

[0051] The above is only the preferred specific implementation manner of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A slitter for the production of needle punched felt, comprising a mounting frame (1), characterized in that: A dust collection component (7) is provided at the bottom end of the mounting frame (1). A slitting component (2) and a lifting component (4) are respectively arranged inside the mounting frame (1). The lifting component (4) is located below the slitting component (2), and the dust collection component (7) is located below the lifting component (4). A driving component (3) is arranged outside the mounting frame (1), and an air suction fan (5) is arranged on the other side of the mounting frame (1). Two guiding rollers (6) are rotatably connected to the outer end of the mounting frame (1). The slitting component (2) includes a cutter shaft (21). The cutter shaft (21) is rotatably connected to the inner side wall of the mounting frame (1). A plurality of mounting bushings (23) are sleeved on the outer end of the cutter shaft (21), and a circular cutter (22) is installed on the outer periphery of each of the plurality of mounting bushings (23). The lifting component (4) includes a rotating shaft (41). The rotating shaft (41) is rotatably connected to the inner side wall of the mounting frame (1). A plurality of lifting rings (42) are sleeved on the outer end of the rotating shaft (41). A limiting device (43) is installed at the outer end of each of the plurality of lifting rings (42). The number of the lifting rings (42) corresponds to that of the circular cutters (22). A circular groove adapted to the circular cutter (22) is formed in the outer periphery of the lifting ring (42).

2. The slitter for the production of needled felt according to claim 1, characterized in that: The slitting component (2) further includes a plurality of bolts (28). A plurality of mounting blocks (25) are fixedly connected to the inner side of the circular cutter (22). A plurality of mounting grooves (27) adapted to the mounting blocks (25) are formed in the outer end of the mounting bushing (23). The bolt (28) penetrates through the inner side wall of the mounting bushing (23), and the bolt (28) is threadedly connected to the mounting block (25).

3. The slitter for the production of needle punched felt according to claim 2, characterized in that: A plurality of moving grooves (24) are formed in the outer end of the cutter shaft (21). A plurality of limiting blocks (26) are fixedly connected to the inner side wall of the mounting bushing (23). The limiting blocks (26) are slidably connected to the moving grooves (24).

4. A slitter for the production of needle punched felts according to claim 3, characterized in that: The slitting component (2) further includes a plurality of threaded rods (210). A plurality of threaded holes adapted to the threaded rods (210) are formed in the inner side wall of the mounting bushing (23). One end of the threaded rod (210) is rotatably connected to an abutting block (29). The abutting block (29) is arc-shaped and is made of rubber material.

5. A slitter for the production of needle punched felts according to claim 1, characterized in that: The driving component (3) includes a motor (31) and a belt (32). The motor (31) is fixedly installed at the outer end of the mounting frame (1). A driving pulley (34) is fixedly connected to the output end of the motor (31). One end of the cutter shaft (21) penetrates through the side wall of the mounting frame (1), and a driven pulley (33) is fixedly connected to one end of the cutter shaft (21). The driven pulley (33) is in transmission connection with the driving pulley (34) through the belt (32).

6. The slitter for manufacturing needle punched felt according to claim 1, wherein: The dust collection assembly (7) includes a box body (71). The input end of the suction fan (5) is connected to the interior of the box body (71). A housing (72) is fixedly connected to the top end of the box body (71). Two partition plates (73) are fixedly connected to the inner side wall of the box body (71). Both of the two partition plates (73) are arranged in a downward inclined manner. A first filter screen (74) is fixedly installed between the two partition plates (73). A second filter screen (75) is installed at the connection between the box body (71) and the suction fan (5).

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