Edge cutter for papermaking felt

By installing a trimming knife body and adjustment device on the paper machine, using stabilizing rollers and reinforcing rollers to keep the paper felt flat, and adjusting the trimming knife spacing through a servo motor and gear system, the problem of looseness of the paper felt during winding is solved, achieving a stable and efficient trimming effect.

CN224047787UActive Publication Date: 2026-03-27XUZHOU JINGUAN IND FABRICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

There is a distance between the output end of the paper machine and the winding mechanism, which causes the paper felt to become loose during winding, resulting in offset wrinkles, affecting the neatness of the trimmed edges and the quality of the finished product.

Method used

A paper felt trimmer is used, comprising a trimmer body, a trimmer holder, and an adjustment device. The stabilizing roller and reinforcing roller in the stabilizing device are used to flatten the paper felt, and the spacing of the trimmer is adjusted by a servo motor and gear meshing to drive a rotating frame and a screw. The scraper removes debris to achieve stable trimming.

Benefits of technology

It effectively prevents paper blankets from wrinkling during the rolling process, ensuring the neatness of the trimmed edges and the quality of the finished product, and improving the effectiveness and functionality of the trimming knife.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an edge cutter for papermaking felt, which relates to the technical field of paper felt production and comprises an edge cutter body, a cutter rest and an adjusting device, the edge cutter body is mounted on the surface of the cutter rest by the aid of the adjusting device, and a stabilizing device is arranged on the surface of one side of the cutter rest. The stabilizing device enables a paper blanket output by a paper machine to be smoother and not prone to wrinkling by means of a stabilizing roller and a reinforcing roller, the stabilizing device comprises a mounting shaft mounted on a tool rest, a rotating frame is rotationally arranged on the arc surface of the mounting shaft, and a servo motor is mounted on the surface of the tool rest. When the edge cutter body carries out rolling and edge cutting on a paper blanket in the production rolling process, the paper blanket is not prone to wrinkling and shifting, stability and flatness of the paper blanket are guaranteed, edge cutting can be carried out on the edge stably and efficiently, the machined and cut edge is more neat, and the edge cutting efficiency is improved. And the using effect and functionality of the edge cutter body are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to paper blanket production technical field especially a papermaking blanket edge cutter. BACKGROUND

[0002] Papermaking blanket refers to the fabric felt used for paper forming and conveying in paper industry, the structure of papermaking blanket is generally divided into three parts, the middle is base web layer, the upper and lower are fiber layers, and it is made into a circular ring, because the edge is relatively rough, so it needs to use the corresponding edge cutting tool to cut.

[0003] The traditional edge cutter is generally installed between the output end of the paper machine and the winding mechanism, the edge cutter is placed on both sides of the papermaking blanket, and the edge of the papermaking blanket is cut through the sliding contact of the blade and the papermaking blanket, but it is found in actual use that there is still a distance between the output end of the paper machine and the winding mechanism, so a certain looseness is generated when the papermaking blanket is wound, which leads to the offset and wrinkle of the papermaking blanket, affects the standard and neatness of the edge cutting, reduces the quality of finished products, and also reduces the use effect of the edge cutter. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is that there is still a distance between the output end of the paper machine and the winding mechanism, so a certain looseness is generated when the papermaking blanket is wound, which leads to the offset and wrinkle of the papermaking blanket, affects the standard and neatness of the edge cutting, reduces the quality of finished products, and also reduces the use effect of the edge cutter.

[0005] The utility model adopts the technical scheme that a papermaking blanket edge cutter, including edge cutter body, tool rest and adjusting device, the edge cutter body is installed on the surface of the tool rest through the adjusting device, and the surface of one side of the tool rest is provided with a stabilizing device, wherein the stabilizing device makes the paper blanket output on the paper machine more flat and not easy to wrinkle through the stabilizing roller and the reinforcing roller.

[0006] The above-mentioned components achieve the effects that when the paper machine is used to produce and process the paper blanket, the edge cutter body is installed on one side of the output of the paper machine through the tool rest, then the paper blanket is wound by the winding mechanism on one side after production, and when winding, the stabilizing device on the tool rest is operated to limit and stabilize the paper blanket, and the distance between the two edge cutter bodies on the tool rest is adjusted to cut the two sides of the paper blanket.

[0007] Preferably, the stabilizing device comprises a mounting shaft mounted on the tool holder, a rotating frame is rotatably arranged on the arc surface of the mounting shaft, a servo motor is mounted on the surface of the tool holder, gears are mounted on the output end of the servo motor and the rotating frame, the two gears are in meshing engagement, stabilizing rollers are mounted on the surface of the rotating frame on both sides, a screw rod is threadedly and penetratingly arranged on the surface of the rotating frame, a reinforcing roller is rotatably arranged at one end of the screw rod, and limit plates are mounted on the arc surface of the reinforcing roller on both sides of the screw rod, and the limit plates are in sliding connection with the inner wall of the rotating frame.

[0008] The effect achieved by the above components is that when the edge cutting tool body is used to cut the edges of the paper blanket during the production winding process, the paper blanket is not prone to wrinkle deviation, which ensures stable flatness, and the edges can be cut stably and efficiently, the processing and cutting are more neat, and the use effect and functionality of the edge cutting tool body are improved.

[0009] Preferably, the stabilizing device further comprises an operating block mounted on the screw rod, and the surface of the operating block is provided with a plurality of anti-skid protrusions.

[0010] The effect achieved by the above components is that the screw rod is more convenient and fast to rotate, so that the position of the auxiliary roller can be quickly adjusted, and the auxiliary roller can stably contact and limit the surface of the paper blanket.

[0011] Preferably, a scraper is mounted on one side surface of the rotating frame, and the cross section of the scraper is in the shape of “L”.

[0012] The effect achieved by the above components is that when the paper blanket is extruded and limited by the stabilizing rollers and the reinforcing roller, the excess debris on the surface of the paper blanket can be scraped off through the sliding friction between the scraper and the paper blanket, which facilitates subsequent cutting and improves the use effect of the edge cutting tool body.

[0013] Preferably, the stabilizing device further comprises a stabilizing plate mounted on the tool holder, and the stabilizing plate is penetratingly arranged at the output end of the servo motor.

[0014] The effect achieved by the above components is that the stabilizing plate can ensure the stable rotation of the output end gear of the servo motor when the servo motor is in use, and the servo motor is not prone to deformation and damage due to excessive transmission load, which ensures the normal use of the stabilizing device.

[0015] Preferably, the adjusting device comprises an adjusting rod mounted on the tool holder, two connecting plates are slidingly connected to the surface of the adjusting rod, one side of each of the two connecting plates is connected to the edge cutting tool body, the edge cutting tool body is slidingly connected to the inner wall of the tool holder, a plurality of evenly distributed grooves are formed in the surface of the adjusting rod, screws are threadedly connected to the surface of the connecting plates, and the screws are inserted into the grooves in the surface of the adjusting rod.

[0016] The effect achieved by the above components is that the edge cutting knife body can be conveniently adjusted in position during use, thereby adapting to the use of the paper machine and better performing edge cutting processing, and the convenience of use of the edge cutting knife body is improved.

[0017] Preferably, a spring is sleeved on each of the arc surfaces at the two ends of the adjusting rod, and the two ends of the spring are connected with the adjusting rod and the connecting plate respectively.

[0018] The effect achieved by the above components is that the connecting plate can be quickly displaced when driving the edge cutting knife body to slide and adjust the position, and the convenience of use of the adjusting device is improved.

[0019] Preferably, a scale line is formed on one side surface of the adjusting rod, and the scale line assists in adjusting the position of the connecting plate.

[0020] The effect achieved by the above components is that the edge cutting knife bodies on the two sides of the knife holder can more accurately grasp the size specification when adjusting the distance, and the use effect of the adjusting device is further improved.

[0021] The beneficial effects of the present application are:

[0022] When the edge cutting knife body of the present application is used to cut the edges of the paper blanket during the production and winding process, the paper blanket is not prone to wrinkle and deviation, and the stable and flat paper blanket can be stably and efficiently cut, the cutting is more uniform, and the use effect and functionality of the edge cutting knife body are improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described below in combination with the drawings and examples.

[0024] Figure 1 is a structural schematic view of the present application;

[0025] Figure 2 is a structural schematic view of the stabilizing device of the present application;

[0026] Figure 3 is a side structural schematic view of the present application Figure 2 ;

[0027] Figure 4 is a structural schematic view of the adjusting device of the present application.

[0028] Legend: 1, edge cutter body; 2, cutter holder; 3, stabilizing device; 31, mounting shaft; 32, rotating frame; 33, servo motor; 34, gear; 35, stabilizing roller; 36, screw; 37, limiting plate; 38, reinforcing roller; 39, operating block; 310, scraper; 311, stabilizing plate; 4, adjusting device; 41, adjusting rod; 42, connecting plate; 43, screw; 44, spring; 45, scale line. DETAILED DESCRIPTION

[0029] The utility model will be explained in further detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the utility model in a schematic manner, so they only show the structure related to the utility model.

[0030] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Figure 1 The utility model discloses an edge cutter for papermaking blanket, including edge cutter body 1, cutter holder 2 and adjusting device 4, edge cutter body 1 is installed on the surface of cutter holder 2 by adjusting device 4, one side surface of cutter holder 2 is provided with stabilizing device 3, wherein stabilizing device 3 makes the paper blanket output on paper machine more flat and not easy to produce fold by stabilizing roller 35 and reinforcing roller 38, when using paper machine to produce and process paper blanket, edge cutter body 1 is installed on the output side of paper machine by cutter holder 2, then paper blanket is rolled up by one side's winding mechanism after production, and when winding, stabilizing device 3 on cutter holder 2 is operated, paper blanket is positioned and stabilized, and the distance of two side edge cutter bodies 1 on cutter holder 2 is adjusted, and the two sides of paper blanket are edged.

[0032] Figure 1 、 Figure 2 and Figure 3The shown stabilizing device 3 comprises a mounting shaft 31 mounted on the tool holder 2, a rotating frame 32 is rotatably arranged on the arc surface of the mounting shaft 31, a servo motor 33 is mounted on the surface of the tool holder 2, gears 34 are mounted on the output end and the rotating frame 32 respectively, and the two gears 34 are meshed with each other, a stabilizing roller 35 is mounted on the surface of the rotating frame 32 on both sides, a screw rod 36 is threadedly penetrated on the surface of the rotating frame 32, a reinforcing roller 38 is rotatably arranged at one end of the screw rod 36, and the arc surface of the reinforcing roller 38 is located on both sides of the screw rod 36 and is provided with a limiting plate 37, the limiting plate 37 is slidably connected with the inner wall of the rotating frame 32. When the paper blanket is produced and processed by using the paper machine, the edge cutting tool body 1 is installed on the output side of the paper machine by means of the tool holder 2, then the paper blanket is wound by the winding mechanism on one side after production, and when winding, the servo motor 33 fixed on the tool holder 2 is started, then the rotating frame 32 on the mounting shaft 31 is rotated through the meshing action of the gears 34, so as to drive the stabilizing roller 35 on one side of the rotating frame 32 to extrude the surface of the paper blanket, then the screw rod 36 on the rotating frame 32 is rotated, and because of the limiting action of the limiting plate 37, the reinforcing roller 38 rotatably arranged at one end of the screw rod 36 gradually approaches the paper blanket until it is in contact and extrusion, at this time the paper blanket is extruded by the stabilizing roller 35 and the auxiliary roller to be stable and tight, and keeps the uniform state, at the same time the distance between the two edge cutting tool bodies 1 on the tool holder 2 is adjusted to cut the edges of the paper blanket, at this time the edge cutting tool body 1 can stably and efficiently cut the edges during the winding and cutting of the paper blanket in the production process, so that the paper blanket is not easy to wrinkle and deviate, the stable and flat state is ensured, the edges can be stably and efficiently cut, the processing and cutting are more uniform, and the use effect and functionality of the edge cutting tool body 1 are improved.

[0033] Figure 1 、 Figure 2 and Figure 3 The shown stabilizing device 3 further comprises an operating block 39 mounted on the screw rod 36, the surface of the operating block 39 is provided with a plurality of anti-skid protrusions, the setting of the operating block 39 makes the screw rod 36 more convenient and fast during rotation, so that the position of the auxiliary roller can be quickly adjusted, and the auxiliary roller can stably contact and limit the surface of the paper blanket, a scraper 310 is mounted on one side surface of the rotating frame 32, the cross section of the scraper 310 is "L" shaped, the setting of the scraper 310 makes the paper blanket be scraped by the sliding friction with the paper blanket through the scraper 310 when being extruded and limited by the stabilizing roller 35 and the reinforcing roller 38, so that the excess debris on the surface of the paper blanket is scraped, the subsequent cutting is facilitated, the use effect of the edge cutting tool body 1 is improved, and the stabilizing device 3 further comprises a stabilizing plate 311 mounted on the tool holder 2, the stabilizing plate 311 is penetrated with the output end of the servo motor 33, the setting of the stabilizing plate 311 makes the servo motor 33 ensure the stable rotation of the output end gear 34 during use, and the gear 34 is not easy to be deformed and damaged due to excessive rotation load, so that the normal use of the stabilizing device 3 is ensured.

[0034] Figure 1 and Figure 4 The adjusting device 4 shown in the figure includes an adjusting rod 41 mounted on the tool holder 2, the surface of the adjusting rod 41 is slidably connected with two connecting plates 42, and one side of the two connecting plates 42 is respectively connected with the edge trimming tool body 1, the edge trimming tool body 1 is slidably connected with the inner wall of the tool holder 2, the surface of the adjusting rod 41 is provided with a plurality of evenly distributed grooves, the surface of the connecting plate 42 is threadedly connected with a screw 43, and the screw 43 is inserted into the groove on the surface of the adjusting rod 41. When adjusting the position of the edge trimming tool body 1 according to the specifications of the paper blanket on the paper machine, first slide the edge trimming tool body 1 on both sides of the tool holder 2, so that the connecting plate 42 fixedly connected with the edge trimming tool body 1 slides on the adjusting rod 41 fixedly connected with the tool holder 2, until the distance between the edge trimming tool bodies 1 on both sides is adapted to the edge trimming requirements of the paper blanket, then threadedly connect the screw 43 with the surface of the connecting plate 42, until the screw 43 is inserted into the groove on the surface of the adjusting rod 41, so that the position of the edge trimming tool body 1 is fixed. At this time, the edge trimming tool body 1 can be conveniently adjusted in position during use, so as to adapt to the use of the paper machine and better perform edge trimming processing, thereby improving the convenience of use of the edge trimming tool body 1.

[0035] Figure 1 and Figure 4 The two ends of the adjusting rod 41 are respectively provided with a spring 44, and the two ends of the spring 44 are respectively connected with the adjusting rod 41 and the connecting plate 42. Through the arrangement of the spring 44, the connecting plate 42 can quickly slide and displace when driving the edge trimming tool body 1 to slide and adjust the position, thereby improving the convenience of use of the adjusting device 4. The side surface of the adjusting rod 41 is provided with a scale line 45, wherein the scale line 45 assists the position adjustment of the connecting plate 42. Through the arrangement of the scale line 45, the edge trimming tool bodies 1 on both sides of the tool holder 2 can more accurately grasp the size specifications when adjusting the distance, thereby further improving the use effect of the adjusting device 4.

[0036] Working principle: when the paper blanket is produced by the paper machine, the cutting knife body 1 is installed on the output side of the paper machine by the cutter holder 2, then the paper blanket is wound by the winding mechanism on one side after production, and when winding, the servo motor 33 fixed on the cutter holder 2 is started, then the rotating frame 32 on the installation shaft 31 is rotated through the meshing action of the gear 34, so as to drive the stable roller 35 on one side of the rotating frame 32 to extrude the surface of the paper blanket, then the screw rod 36 on the rotating frame 32 is rotated, and because of the limiting action of the limiting plate 37, the reinforcing roller 38 rotatingly arranged at one end of the screw rod 36 gradually approaches the paper blanket until it is extruded, at this time the paper blanket is extruded by the stable roller 35 and the auxiliary roller, so that the paper blanket is stable and tight, and the cutting knife body 1 can be used to cut the edge of the paper blanket during winding, so that the paper blanket is not easy to wrinkle and deviate, so that the stable and flat paper blanket can be obtained, the edge can be cut stably and efficiently, the processing and cutting are more uniform, and the use effect and functionality of the cutting knife body 1 are improved.

[0037] When the position of the cutting knife body 1 is adjusted according to the paper blanket on the paper machine, first, the cutting knife body 1 on both sides of the cutter holder 2 is slid, so that the connecting plate 42 fixedly connected to the cutting knife body 1 slides on the adjusting rod 41 fixedly connected to the cutter holder 2, until the distance between the cutting knife bodies 1 on both sides is adapted to the cutting requirement of the paper blanket, then the screw 43 is screwed through the surface of the connecting plate 42, until the screw 43 is inserted into the groove in the surface of the adjusting rod 41, so that the position of the cutting knife body 1 is fixed, at this time the cutting knife body 1 can be conveniently adjusted in position during use, so as to adapt to the use of the paper machine and better cut the paper blanket, and the convenience of the cutting knife body 1 is improved.

[0038] Based on the above ideal embodiment of the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents in the specification, and must be determined according to the scope of claims.

Claims

1. A trimming knife for papermaking felts, comprising a trimming knife body (1), a holder (2) and an adjustment device (4), characterized in that: The trimming knife body (1) is installed on the surface of the knife holder (2) by the adjusting device (4), one side surface of the knife holder (2) is provided with the stabilizing device (3), wherein the stabilizing device (3) makes the paper blanket output on the paper machine more flat and not easy to produce wrinkles by the stabilizing roller (35) and the reinforcing roller (38).

2. A trimming knife for papermaking felts according to claim 1, characterized in that: The stabilizing device (3) comprises a mounting shaft (31) mounted on the knife holder (2), a rotating frame (32) is rotatably arranged on the arc surface of the mounting shaft (31), a servo motor (33) is mounted on the surface of the knife holder (2), gears (34) are mounted on the output end and the rotating frame (32) respectively, the two gears (34) are meshed with each other, stabilizing rollers (35) are mounted on the surface of the rotating frame (32) on both sides respectively, a screw rod (36) is threadedly penetrated on the surface of the rotating frame (32), a reinforcing roller (38) is rotatably arranged at one end of the screw rod (36), and the arc surface of the reinforcing roller (38) is located on the two sides of the screw rod (36) and is respectively provided with a limiting plate (37), and the limiting plate (37) is slidably connected with the inner wall of the rotating frame (32).

3. A trimming knife for papermaking felts according to claim 2, characterized in that: The stabilizing device (3) further comprises an operating block (39) mounted on the screw rod (36), and the surface of the operating block (39) is provided with a plurality of anti-skid protrusions.

4. The slitting knife for papermaking felt according to claim 2, characterized in that: One side surface of the rotating frame (32) is provided with a scraper (310), and the cross section of the scraper (310) is in "L" shape.

5. The slitting knife for papermaking felt according to claim 2, characterized in that: The stabilizing device (3) further comprises a stabilizing plate (311) mounted on the knife holder (2), and the stabilizing plate (311) is penetrated with the output end of the servo motor (33).

6. The slitting knife for papermaking felt according to claim 1, characterized in that: The adjusting device (4) comprises an adjusting rod (41) mounted on the knife holder (2), two connecting plates (42) are slidably connected on the surface of the adjusting rod (41), one side of each of the two connecting plates (42) is connected with the trimming knife body (1), the trimming knife body (1) is slidably connected with the inner wall of the knife holder (2), a plurality of evenly distributed grooves are formed in the surface of the adjusting rod (41), screws (43) are threadedly connected on the surface of the connecting plates (42), and the screws (43) are inserted into the grooves on the surface of the adjusting rod (41).

7. A trimming knife for papermaking felts according to claim 6, characterized in that: The two ends of the adjusting rod (41) are respectively provided with springs (44), and the two ends of the spring (44) are respectively connected with the adjusting rod (41) and the connecting plate (42).

8. The slitting knife for papermaking felt according to claim 6, characterized in that: A scale line (45) is formed on one side surface of the adjusting rod (41), and the scale line (45) assists the position adjustment of the connecting plate (42).