Transverse cutting device for pre-oxidized fiber felt

Abstract

The transverse cutting device of the pre-oxidized fiber felt comprises a conveying platform with an interval channel and a transverse cutting tool assembly capable of doing reciprocating motion from the interval channel, and the transverse cutting tool assembly comprises a saw disc, an autorotation power device for driving a reel to autorotate and a transverse cutting power device for driving the saw disc to do reciprocating motion along the interval channel. The transverse cutting device further comprises a flattening assembly used for flattening the pre-oxidized fiber felt on the conveying platform, the flattening assembly comprises an edge pressing frame with an avoiding cutter groove and a flattening power device located above the conveying platform and used for driving the edge pressing frame to move up and down, the avoiding cutter groove and the interval channel form a transverse cutting channel, and the saw disc transversely moves to penetrate through the transverse cutting channel in the autorotation process. On the basis of positive pressure and saw cutting avoidance provided by the flattening assembly, by matching with autorotation and transverse cutting of the saw disc, the flattened pre-oxidized fiber felt is transversely cut, namely, the influence of the thickness of the pre-oxidized fiber felt is avoided, a saw cutting port is smooth, and the probability of generating waste heads is reduced; the loss of the saw disc is reduced, and the sawing service life of the saw disc is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of new fiber and composite material preparation technology, specifically relating to a cross-cutting device for pre-oxidized fiber felt. Background Technology

[0002] Currently, the production line for the preparation of felt typically consists of pretreatment equipment, feeding equipment, needle punching equipment, heat setting equipment, and edge trimming and rolling equipment. The pretreatment equipment mainly combs the fibers (such as pre-oxidized fibers) to form a fiber web, then multiple fiber webs are needle punched to form the web, and finally, the fibers are set, trimmed, and rolled.

[0003] However, during the rolling process, the felt needs to be cut crosswise with a cutting tool. Conventional cutting tools require the felt to be under special tension to make crosswise cuts. Therefore, the resulting crosswise cuts have the following defects:

[0004] 1) The blade must be sharp, otherwise it will take multiple cuts to cut through it. As the thickness of the felt increases, the cuts become more difficult, and the blade needs to be replaced regularly.

[0005] 2) The end of the blade will arch up when it comes into contact with the felt. Therefore, the cut end is not flush, which increases the probability of waste material. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an improved cross-cutting device for pre-oxidized filament felt.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A cross-cutting device for pre-oxidized felt includes a transmission platform forming a spaced channel and a cross-cutting tool assembly capable of reciprocating along the spaced channel. The cross-cutting tool assembly includes a saw disc, a rotational power unit for driving the reel to rotate, and a cross-cutting power unit for driving the saw disc to reciprocate along the spaced channel. The cross-cutting device also includes a flattening assembly for flattening the pre-oxidized felt on the transmission platform. The flattening assembly includes a pressing frame with a clearance groove and a flattening power unit located above the transmission platform to drive the pressing frame to move up and down. The clearance groove and the spaced channel form the cross-cutting channel, and the saw disc moves laterally through the cross-cutting channel during rotation.

[0009] Preferably, the pressing frame includes a first frame strip and a second frame strip respectively pressed onto the transmission platform, a third frame strip and a fourth frame strip for fixing the ends of the first frame strip and the second frame strip together, wherein a clearance groove is formed between the first frame strip and the second frame strip. The flattening positioning formed by the frame strips is beneficial for sawing the saw disc, while reducing wear on the cutting tool, and allowing for a single cross-cut regardless of the felt thickness.

[0010] According to a specific embodiment and preferred aspect of this utility model, a plurality of positioning frame plates are further provided between the first frame bar and the second frame bar, and the flattening power unit acts on each positioning frame plate respectively. Based on the arrangement of the positioning frame plates, it is convenient for the flattening power unit to be positioned directly above the clearance groove.

[0011] Preferably, each positioning frame plate is fixed to the top of the first and second frame bars, forming sufficient clearance space. Furthermore, multiple positioning frame plates are evenly distributed along the clearance groove. This creates pressure that is more conducive to the saw blade's cross-cutting.

[0012] Preferably, a fixed truss is provided on the upper side of the transmission platform, and each flattening power unit is installed on the fixed truss through an external mounting bracket.

[0013] In some specific implementations, the flattening power unit is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0014] Preferably, the third and fourth frame bars are located on top of the first and second frame bars.

[0015] According to another specific embodiment and preferred aspect of this utility model, the first and second frame bars are partially pressed onto the transmission platform, while the remaining portions are located above the interval channel. This results in a good flattening effect, and the remaining portions can still provide holding force during the sawing process.

[0016] Preferably, the saw disc is set to rotate via the saw base. The rotation power unit includes a power wheel coaxial with the saw disc, a power motor mounted on the saw base, and a transmission component for synchronously transmitting power between the power motor and the power wheel, wherein the transmission component is a sprocket, pulley, or gear.

[0017] Furthermore, the cross-cutting power unit includes a lead screw and a cross-cutting motor that drives the lead screw to rotate, wherein the lead screw and the saw holder form a lead screw and nut structure. Based on the lead screw and nut structure, the reciprocating lateral movement of the saw disc is realized to complete the cross-cutting of the felt.

[0018] Due to the implementation of the above technical solution, this utility model has the following advantages compared with the prior art:

[0019] In existing methods of cross-cutting pre-oxidized felt, the cutting tools must be sharp; otherwise, multiple cuts are required to cut through the felt. As the felt thickness increases, the cuts become more difficult, and the tools need to be replaced regularly. Furthermore, the blade arches at the moment of contact with the felt, resulting in a non-flush cut and increasing the probability of waste material. This invention addresses these shortcomings by comprehensively redesigning the structure of the cross-cutting device for pre-oxidized felt, cleverly resolving these deficiencies. Using this cross-cutting device, firstly, the… The flattening assembly flattens the pre-oxidized felt on the transmission platform, avoiding the knife groove and the interval channel to form a cross-cutting channel. Then, during the rotation of the saw disc, the cross-cutting power unit drives the saw disc to form a cross-cutting along the cross-cutting channel. Therefore, this utility model, based on the positive pressure and sawing avoidance provided by the flattening assembly, combined with the rotation and cross-cutting of the saw disc, cross-cuts the flattened pre-oxidized felt. This is not affected by the thickness of the pre-oxidized felt, and the sawing end is flat, reducing the probability of waste material generation. It also reduces the wear of the saw disc and extends the sawing life of the saw disc. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of the pre-oxidized felt cross-cutting device in this embodiment;

[0021] Figure 2 for Figure 1 A top-down view;

[0022] Of which: 1. Transmission platform; 10. Interval channels;

[0023] 2. Cross-cutting tool assembly; 20. Saw disc; 21. Rotation power unit; 210. Drive wheel; 211. Power motor; 212. Transmission component; 22. Cross-cutting power unit; 220. Lead screw; 221. Cross-cutting motor; 23. Saw base;

[0024] 3. Flattening assembly; 30. Pressing frame; 300. Clearance groove; 301. First frame strip; 302. Second frame strip; 303. Third frame strip; 304. Fourth frame strip; 305. Positioning frame plate; 31. Flattening power unit

[0025] 4. Fixed truss;

[0026] 5. External connector;

[0027] M, Pre-oxidized filament mat. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0033] like Figure 1 and Figure 2 As shown, the pre-oxidized felt cross-cutting device of this embodiment includes a transmission platform 1 with spaced channels 10, a cross-cutting blade assembly 2 capable of reciprocating from the spaced channels 10, and a flattening assembly 3 for flattening the pre-oxidized felt M on the transmission platform 1.

[0034] Specifically, the top surface of transmission platform 1 is flush with the corresponding spacing.

[0035] The cross-cutting tool assembly 2 includes a saw disc 20, a rotation power unit 21 that drives the reel 20 to rotate, and a cross-cutting power unit 22 that drives the saw disc 20 to reciprocate along the spaced channel 10.

[0036] In some specific embodiments, the saw disc 20 is rotated via the saw base 23. The rotation power unit 21 includes a power wheel 210 coaxial with the saw disc 20, a power motor 211 mounted on the saw base 23, and a transmission component 212 for synchronously transmitting power motor 211 and power wheel 210, wherein the transmission component 212 is a sprocket, pulley, or gear. The cross-cutting power unit 22 includes a lead screw 220 and a cross-cutting motor 221 that drives the lead screw 220 to rotate, wherein the lead screw 220 and the saw base 23 form a lead screw and nut structure. The reciprocating lateral movement of the saw disc is achieved based on the lead screw and nut structure to complete the cross-cutting of the felt. In this example, a slide rail is also provided on the transmission platform 1, wherein the saw base 23 slides linearly on the slide rail.

[0037] The flattening assembly 3 includes a pressing frame 30 with a clearance groove 300 and a flattening power unit 31 located above the transmission platform 1 to drive the pressing frame 30 to move up and down. The clearance groove 300 and the spacer channel 10 form a cross-cutting channel, and the saw disc 20 moves laterally through the cross-cutting channel during its rotation.

[0038] In some specific embodiments, the pressing frame 30 includes a first frame strip 301 and a second frame strip 302 respectively pressed onto the transmission platform, a third frame strip 303 and a fourth frame strip 304 for fixing the ends of the first frame strip 301 and the second frame strip 302 together, wherein a clearance groove 300 is formed between the first frame strip 301 and the second frame strip 302. The flattening positioning formed by the frame strips facilitates saw cutting, reduces wear on the cutting tool, and allows for a single cross-cut regardless of the felt thickness. Multiple positioning frame plates 305 are also provided between the first frame strip 301 and the second frame strip 302, and the flattening power unit 31 acts on each positioning frame plate 305. The positioning frame plates facilitate the placement of the flattening power unit directly above the clearance groove. Each positioning frame plate 305 is fixed to the top of the first frame strip 301 and the second frame strip 302, forming sufficient clearance space. Furthermore, the multiple positioning frame plates 305 are evenly distributed along the clearance groove 300. The pressure generated in this way is more conducive to the cross-cutting of the saw blade. In this example, there are three positioning frame plates 305, that is, there are three corresponding flattening power units 31. The third frame bar 303 and the fourth frame bar 304 are located on top of the first frame bar 301 and the second frame bar 302. The first frame bar 301 and the second frame bar 302 are partially pressed onto the transmission platform 1, and the remaining parts are located above the interval channel 10. This results in a good flattening effect, and the remaining parts can still provide holding force during the sawing process.

[0039] In addition, a fixed truss 4 is provided on the upper side of the transmission platform 1, and each flattening power unit 31 is mounted on the fixed truss 4 via an external mounting base 5. The flattening power unit 31 is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0040] In summary, after adopting this pre-oxidized felt cross-cutting device, firstly, the flattening component flattens the pre-oxidized felt on the transmission platform, and the avoidance groove and the interval channel form the cross-cutting channel; then, during the rotation of the saw disc, the cross-cutting power unit drives the saw disc to form a cross-cut along the cross-cutting channel. Therefore, this utility model, based on the positive pressure and sawing avoidance provided by the flattening component, combined with the rotation and cross-cutting of the saw disc, cross-cuts the flattened pre-oxidized felt, which is not affected by the thickness of the pre-oxidized felt, and the sawing end is flat, reducing the probability of waste head generation; it also reduces the wear of the saw disc and extends the sawing life of the saw disc; secondly, the flattening positioning formed by the frame strips is beneficial to the saw disc sawing, while reducing the wear on the tool, and the cross-cutting is not affected by the thickness of the felt; thirdly, the setting of the positioning frame plate makes it easy to place the flattening power unit directly above the avoidance groove; at the same time, each positioning frame plate is fixed to the top of the first frame strip and the second frame strip, forming sufficient avoidance space; multiple positioning frame plates are evenly distributed along the avoidance groove. The pressure generated in this way is more conducive to the cross-cutting of the saw blade; fourthly, the first and second frame bars are partially pressed on the transmission platform, and the remaining part is located above the interval channel, which results in a good flattening effect, and the remaining part can still provide holding force during the sawing process; fifthly, based on the transmission method of sprocket, pulley or gear, the saw blade can rotate and saw, and based on the screw nut structure, the saw blade can reciprocate and move laterally to complete the cross-cutting of the felt.

[0041] The present utility model has been described in detail above, with the aim of enabling those skilled in the art to understand its contents and implement it. However, this description should not be construed as limiting the scope of protection of the present utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A cross-cutting device for pre-oxidized felt, comprising a transport platform forming spaced channels and a cross-cutting blade assembly capable of reciprocating through the spaced channels, characterized in that: The cross-cutting tool assembly includes a saw disc, a rotation power unit that drives the reel to rotate, and a cross-cutting power unit that drives the saw disc to reciprocate along the spaced channels. The cross-cutting device further includes a flattening assembly for flattening the pre-oxidized felt on the transmission platform. The flattening assembly includes a pressing frame with a clearance groove and a flattening power unit located above the transmission platform to drive the pressing frame to move up and down. The clearance groove and the interval channel form a cross-cutting channel, and the saw disc moves laterally through the cross-cutting channel during its rotation.

2. The cross-cutting device for pre-oxidized filament felt according to claim 1, characterized in that: The pressing frame includes a first frame strip and a second frame strip respectively pressed on the transmission platform, a third frame strip and a fourth frame strip for fixing the ends of the first frame strip and the second frame strip together, wherein the avoidance groove is formed between the first frame strip and the second frame strip.

3. The cross-cutting device for pre-oxidized filament felt according to claim 2, characterized in that: Multiple positioning frame plates are provided between the first frame bar and the second frame bar, and the flattening power unit acts on each of the positioning frame plates respectively.

4. The cross-cutting device for pre-oxidized filament felt according to claim 3, characterized in that: Each of the positioning frame plates is fixed to the top of the first frame bar and the second frame bar; and / or, a plurality of the positioning frame plates are distributed at equal intervals along the clearance groove.

5. The cross-cutting device for pre-oxidized filament felt according to claim 4, characterized in that: A fixed truss is provided on the upper side of the transmission platform, and each of the flattening power units is mounted on the fixed truss via an external mounting bracket.

6. The cross-cutting device for pre-oxidized filament felt according to claim 5, characterized in that: The flattening power unit is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

7. The cross-cutting device for pre-oxidized filament felt according to claim 2, characterized in that: The third and fourth frame bars are located on top of the first and second frame bars.

8. The cross-cutting device for pre-oxidized filament mat according to any one of claims 2 to 7, characterized in that: The first and second frame bars are partially pressed onto the transmission platform, while the remaining portions are located above the interval channel.

9. The cross-cutting device for pre-oxidized filament felt according to claim 1, characterized in that: The saw disc is set to rotate via a saw base. The rotation power unit includes a power wheel coaxial with the saw disc, a power motor mounted on the saw base, and a transmission component for synchronously transmitting the power motor and the power wheel. The transmission component is a sprocket, pulley, or gear.

10. The cross-cutting device for pre-oxidized filament felt according to claim 9, characterized in that: The cross-cutting power unit includes a power lead screw and a cross-cutting motor that drives the power lead screw to rotate, wherein the power lead screw and the saw seat form a lead screw and nut structure.

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