Fabric cutting device of nonwoven winding machine

Abstract

A cloth cutting device for a non-woven fabric winding machine includes a cloth supporting mechanism, a cloth guide roller, a non-woven fabric cutting mechanism and a pair of swing arms. The cloth supporting mechanism is fixed between the upper front ends of the pair of swing arms. Both ends of the cloth guide roller have a cloth guide roller support shaft head. The non-woven fabric cutting mechanism is connected to the opposite sides of the middle and lower front ends of the pair of swing arms. A swing arm actuating wheel is fixed on the opposite sides of the rear ends of the pair of swing arms. The pair of swing arm actuating wheels and the rear ends of the pair of swing arms are sleeved on the cloth guide roller support shaft head. Features: The non-woven fabric cutting mechanism includes a cylinder fixing beam, a tensioning roller frame, a tensioning roller, a group of non-woven fabric cutting knife frames, a non-woven fabric cutting knife, a non-woven fabric cutting knife frame connecting rod, a pair of pivot arms, a pair of pivot arm driving cylinders and a group of non-woven fabric cutting knife frame driving cylinders. When the cloth roll is full and needs to be changed, the non-woven fabric in the continuous lead-out state will be cut off instantly by the non-woven fabric cutting knife to avoid waste and ensure quality. It is suitable for non-woven fabric high-speed production lines.

Description

Technical Field

[0001] The invention belongs to the technical field of nonwoven machinery, and in particular relates to a cloth cutting device of a nonwoven fabric winding machine. Background Art

[0002] The non-woven fabric winder is an indispensable machine in the complete set of non-woven product production lines. Specifically, the winder will roll up the non-woven fabric that has been needled by the previous process, such as the needle punching machine. When the diameter of the roll reaches the required requirement, it will be cut by the cloth cutting device, and then the cloth roller will be used to reel it up, and the cycle will continue. The general structure and specific working principle of the non-woven fabric winder can also be understood more deeply by reading patent documents such as CN201545539U (a non-woven fabric winder), CN211225653U (a non-woven fabric winder), CN209038665U (a non-woven fabric winder) and CN213084867U (a non-woven fabric winder).

[0003] In order to reflect the overall effect of the structure, a cloth cutting device is usually installed on the non-woven fabric winding machine. Figure 4 The figure shows a common cloth cutting device of a non-woven fabric winding machine in the prior art, and its working process is: when the diameter of the cloth roll 10 reaches the degree required by the process (i.e., when it reaches full roll), the cylinder 20 works to drive the cylinder column 201 to drive the swing arm 30, and the motor frame 40 moves downward together with the motor 401. While the belt drives the motor 401 to move quickly, the motor 401 drives the disc cutter 4011 (also called "knife disc") fixed on its motor shaft to move at high speed, and the non-woven fabric passing through the cloth supporting mechanism 1 is cut off, that is, the non-woven fabric located below the disc blade 4011 is cut off. This cloth cutting device is substantially similar to the cloth cutting device equipped on the cloth spreading machine (also called "cloth spreading machine") of the clothing machinery, which can also be confirmed by the "full-automatic cutting mechanism of the cloth spreading machine" recommended by CN201416113Y and the "corresponding cutting device of the cloth spreading machine" provided by CN209957085U.

[0004] The above Figure 4Although the cloth cutting device of the nonwoven winding machine shown can meet the requirements of cutting the nonwoven fabric, there are the following technical problems: since the nonwoven fabric is cut by the disc blade during the process of winding the cloth roll, that is, the nonwoven fabric is cut during the process of drawing out, and since the higher the speed of the needle punching machine, the faster the speed of winding the cloth roll, and the faster the speed of drawing out the nonwoven fabric, the incision of the nonwoven fabric cut by the disc blade is often inclined from one side of the nonwoven fabric to the other side, that is, the incision is an oblique incision, and the nonwoven fabric at the oblique incision needs to be removed when used by downstream manufacturers, resulting in waste. On the other hand, for nonwoven products with strict quality requirements, it is usually not allowed to produce an inclined surface when the head and tail of the cloth are cut. The reason why the cloth cut does not appear inclined on the aforementioned cloth spreading machine is that the cloth is cut in a pressed state, that is, it is temporarily in a static state, so the cloth cutting device on the cloth spreading machine is not suitable for cutting nonwoven fabrics in motion. Of course, if the nonwoven fabric is temporarily stopped during the period of being cut by the disc blade, on the one hand, the nonwoven fabric loses its tensioning effect (i.e., is in a relaxed state) and is difficult or even impossible to cut, and on the other hand, it is objectively impossible to temporarily stop the preceding needle punching machine for cutting when the roll is full. Since there is no enlightenment in the currently disclosed patents and non-patent documents that can help to remedy the above technical problems, the applicant has made useful explorations and formed the technical solution to be introduced below. Summary of the invention

[0005] The task of the present invention is to provide a cloth cutting device for a nonwoven winding machine which helps to cut the nonwoven fabric which continues to be drawn out when the fabric roll is full and needs to be changed, and does not cause a bevel at the cut portion of the nonwoven fabric, thereby avoiding waste and ensuring quality.

[0006] The task of the present invention is accomplished in this way. A cloth cutting device of a non-woven fabric winding machine includes a cloth supporting mechanism, a cloth guide roller, a non-woven fabric cutting mechanism and a pair of swing arms corresponding to each other on the left and right. The cloth supporting mechanism is fixed between the upper front ends of the pair of swing arms. Both ends of the cloth guide roller each have a cloth guide roller supporting shaft head. The non-woven fabric cutting mechanism is connected to the middle and lower front ends of the pair of swing arms and one side facing each other and corresponds to the length direction of the cloth guide roller. A swing arm actuating wheel is fixed on each side opposite to the rear end of the pair of swing arms. The pair of swing arm actuating wheels together with the rear ends of the pair of swing arms are rotatably sleeved on the support shaft heads of the cloth guide rollers. The nonwoven fabric cutting mechanism comprises a cylinder fixed beam, a tensioning roller frame, a tensioning roller, a group of nonwoven fabric cutting knife frames, a nonwoven fabric cutting knife, a nonwoven fabric cutting knife frame connecting rod, a pair of pivot arms, a pair of pivot arm driving cylinders and a group of nonwoven fabric cutting knife frame driving cylinders, the cylinder fixed beam is fixed between the opposite sides of the front end lower part of the pair of swing arms, the tensioning roller frame is fixed between the opposite sides of the upper ends of the pair of pivot arms, the tensioning roller is rotatably supported between the opposite sides of the upper ends of the pair of pivot arms at a position above the length direction of the tensioning roller frame, and a group of nonwoven fabric cutting knife frames are spaced apart. The cloth is between a pair of pivot arms, the lower end of the group of non-woven fabric cutting knife holders is sleeved and fixed in the middle of a cutting knife holder connecting roller shaft, and the two ends of the cutting knife holder connecting roller shaft are rotatably supported on a connecting roller shaft pivot support seat, and the connecting roller shaft pivot support seat is fixed at a position corresponding to the upper end of the end of the action cylinder fixed beam and the opposite side of the lower front end of the pair of swing arms. The non-woven fabric cutting knife is fixed to the upper end of the non-woven fabric cutting knife holder and corresponds to the upper front end in the length direction of the tensioning roller. The non-woven fabric cutting knife holder connecting rod is fixedly connected to the middle of a group of non-woven fabric cutting knife holders, and the lower ends of a pair of pivot arms are pivotally supported. Connected to the opposite sides of the middle part of the front end of a pair of swing arms, a pair of pivot arm driving cylinders are respectively fixed at the two ends of the cylinder fixed beam, the pivot arm driving cylinder columns of the pair of pivot arm driving cylinders face upward and are respectively hinged to the middle part of the opposite sides of the pair of pivot arms, the number of a group of non-woven fabric cutting knife holder driving cylinders is equal to the number of a group of non-woven fabric cutting knife holders and are fixed on the cylinder fixed beam at a position corresponding to a group of non-woven fabric cutting knife holders, the non-woven fabric cutting knife holder driving cylinder columns of the non-woven fabric cutting knife holder driving cylinders face upward and are hinged to the front of the lower end of a group of non-woven fabric cutting knife holders.

[0007] In a specific embodiment of the present invention, the cloth supporting mechanism includes a cloth supporting roller frame, a front cloth supporting roller and a rear cloth supporting roller, the cloth supporting roller frame is fixed to a pair of swing arms between the center positions corresponding to the upper front ends of the pair of swing arms, the front cloth supporting roller corresponds to the front of the cloth supporting roller frame in the length direction, and the front cloth supporting roller left shaft head and the front cloth supporting roller right shaft head of the front cloth supporting roller are each rotatably supported on the front cloth supporting roller shaft head pivot support seat, and the front cloth supporting roller shaft head pivot support seat is fixed to the front side of the cloth supporting roller frame, the rear cloth supporting roller corresponds to the rear of the cloth supporting roller frame in the length direction, and the rear cloth supporting roller left shaft head and the rear cloth supporting roller right shaft head of the rear cloth supporting roller are each rotatably supported on the rear cloth supporting roller shaft head pivot support seat, and the rear cloth supporting roller shaft head pivot support seat is fixed to the rear side of the cloth supporting roller frame.

[0008] In another specific embodiment of the present invention, one end of the cloth guide roller support shaft head facing the cloth guide roller corresponds to the center position of the cloth guide roller cavity of the cloth guide roller and is fixed to the cavity wall of the cloth guide roller cavity by a group of cloth guide roller support shaft head spokes, and the one end of the cloth guide roller support shaft head extending outside the cloth guide roller cavity is rotatably supported on a cloth guide roller shaft head pivot support bearing seat provided on the winder in a state of use, and the cloth guide roller is driven to rotate by a cloth guide roller shaft head pivot driving device and a cloth guide roller shaft head driving device located at one end of the cloth guide roller through the cloth guide roller support shaft head.

[0009] In another specific embodiment of the present invention, the group of cloth guide roller support shaft head spokes are distributed in a radial form, and the cloth guide roller support shaft heads located at the left end and the right end of the cloth guide roller are connected by a cloth guide roller support shaft head connecting shaft located in the cloth guide roller cavity.

[0010] In another specific embodiment of the present invention, the swing arm actuating wheel is fixed to the side opposite to the rear end of the pair of swing arms by a swing arm actuating wheel screw, and a swing arm actuating wheel bearing is arranged at the center position of the swing arm actuating wheel, and the swing arm actuating wheel bearing rotatably sleeves the swing arm actuating wheel together with the rear end of the swing arm on the support shaft head of the cloth guide roller at a position corresponding to the swing arm shaft head hole opened at the rear end of the pair of swing arms.

[0011] In another specific embodiment of the present invention, the swing arm actuating wheel is a sprocket and is connected to the swing arm actuating wheel by a chain of a swing arm actuating wheel actuating device arranged on the winder when in use, and the swing arm actuating wheel driving device is a swing arm actuating wheel driving device with forward and reverse rotation functions.

[0012] In a more specific embodiment of the present invention, a pivot arm rotation support hole is provided at the lower end of each of the pair of pivot arms, and a pivot arm rotation support shaft is fixed on the opposite side of the front end of the pair of swing arms and at a position corresponding to the pivot arm rotation support hole, and the pivot arm rotation support hole is pivotally matched with the pivot arm rotation support shaft.

[0013] In a further specific embodiment of the present invention, a fixed beam fixing seat is fixed to each of the two ends of the fixed beam of the working cylinder, and the fixed beam fixing seat is fixed to the opposite side of the lower front end of the pair of swing arms.

[0014] In yet another specific embodiment of the present invention, the rear side of the nonwoven fabric cutting knife in the length direction is formed with a nonwoven fabric cutting knife serrated edge.

[0015] In yet another specific embodiment of the present invention, the pair of pivot arm driving cylinders are air cylinders; the group of non-woven fabric cutting tool holder driving cylinders are air cylinders.

[0016] The technical solution provided by the present invention adopts a non-woven fabric cutting mechanism with a reasonable structure, which helps to cut the non-woven fabric in a continuously drawn-out state by the non-woven fabric cutting knife at an angle when the fabric roll is full and needs to be changed, and no inclined surface will be formed at the incision portion of the non-woven fabric, thereby avoiding waste and ensuring quality. The technical solution is particularly suitable for non-woven fabric high-speed production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an embodiment of the present invention.

[0018] Figure 2 For the present invention Figure 1 The cloth supporting mechanism and the non-woven fabric cutting mechanism shown are schematic diagrams of the state of exiting the non-woven fabric cutting.

[0019] Figure 3 As shown in the present invention Figure 1 The cloth supporting mechanism and the non-woven fabric cutting mechanism shown are schematic diagrams of entering a state of cutting the non-woven fabric.

[0020] Figure 4 The diagram is a schematic diagram of a cloth cutting device of a nonwoven fabric winding machine in the prior art. DETAILED DESCRIPTION

[0021] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description in the form of embodiments below. However, the description of the embodiments is not a limitation of the present invention. Any equivalent changes made based on the concept of the present invention that are merely formal and not substantial should be regarded as within the scope of the technical solution of the present invention.

[0022] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are for Figure 1 The position state is taken as an example, and thus it cannot be understood as a special limitation on the technical solution provided by the present invention.

[0023] See also Figure 1 , showing a cloth supporting mechanism 1, a cloth guide roller 2, a non-woven fabric cutting mechanism 3 and a pair of swing arms 4 corresponding to each other on the left and right, the cloth supporting mechanism 1 is fixed between the upper front ends of the pair of swing arms 4, the two ends of the cloth guide roller 2 each have a cloth guide roller supporting shaft head 21, the non-woven fabric cutting mechanism 3 is connected to the middle and lower front ends of the pair of swing arms 4 and one side facing each other and corresponds to the length direction of the aforementioned cloth guide roller 2, and a swing arm actuating wheel 5 is fixed on the opposite side of the rear end of the pair of swing arms 4 (i.e., the back-to-back side), and the pair of swing arm actuating wheels 5 together with the rear ends of the pair of swing arms 4 are rotatably sleeved on the aforementioned cloth guide roller supporting shaft head 21.

[0024] As the technical key points of the technical solution provided by the present invention: the aforementioned non-woven fabric cutting mechanism 3 includes a cylinder fixed beam 31, a tensioning roller frame 32, a tensioning roller 33, a group of non-woven fabric cutting knife frames 34, a non-woven fabric cutting knife 35, a non-woven fabric cutting knife frame connecting rod 36, a pair of pivot arms 37, a pair of pivot arm driving cylinders 38 and a group of non-woven fabric cutting knife frame driving cylinders 39, the cylinder fixed beam 31 is fixed between the opposite sides of the lower front end of the aforementioned pair of swing arms 4, the tensioning roller frame 32 is fixed between the opposite sides of the upper ends of the pair of pivot arms 37, The tensioning roller 33 is rotatably supported between the upper ends of a pair of pivot arms 37 at a position corresponding to the longitudinal direction of the tensioning roller frame 32, and a group of non-woven fabric cutting knife frames 34 are spaced between the pair of pivot arms 37. The lower ends of the group of non-woven fabric cutting knife frames 34 are fixed to the middle of a cutting knife frame connecting roller shaft 341, and the two ends of the cutting knife frame connecting roller shaft 341 are rotatably supported on a connecting roller shaft pivot support seat 3411. The connecting roller shaft pivot support seat 3411 is connected to the aforementioned cylinder fixed beam 31 at a position corresponding to the upper end of the aforementioned cylinder fixed beam 31. The opposite sides of the lower front ends of the pair of swing arms 4 are fixed, the non-woven fabric cutting knife 35 is fixed to the upper end of the non-woven fabric cutting knife holder 34 and corresponds to the front upper side in the length direction of the aforementioned tensioning roller 33, the non-woven fabric cutting knife holder connecting rod 36 is fixedly connected to the middle of a group of non-woven fabric cutting knife holders 34, the lower ends of a pair of pivot arms 37 are pivotally connected to the opposite sides of the middle of the front ends of the pair of swing arms 4, a pair of pivot arm driving cylinders 38 are respectively fixed to the two ends of the aforementioned cylinder fixing beam 31, and the pivot arm driving cylinder columns 381 of the pair of pivot arm driving cylinders 38 face upward and pivot The ends of the swing arm driving cylinder column 381 are respectively hinged to the middle parts of the opposite sides of a pair of pivot arms 37 which are roughly L-shaped. The number of a group of non-woven fabric cutting knife holder driving cylinders 39 is equal to the number of a group of non-woven fabric cutting knife holders 34 and are fixed on the aforementioned cylinder fixed beam 31 at a position corresponding to a group of non-woven fabric cutting knife holders 34. The non-woven fabric cutting knife holder driving cylinder column 391 of the non-woven fabric cutting knife holder driving cylinder 39 faces upward and its ends are hinged to the front of the lower end of a group of non-woven fabric cutting knife holders 34 through cylinder column hinge pins 3911.

[0025] The aforementioned cloth-supporting mechanism 1 comprises a cloth-supporting roller frame 11, a front cloth-supporting roller 12 and a rear cloth-supporting roller 13. The cloth-supporting roller frame 11 is fixed to the pair of swing arms 4 between the central positions corresponding to the upper front ends of the aforementioned pair of swing arms 4. Figure 1 In the figure, there are shown four cloth roller frame fixing screw holes 43 for fixing the cloth roller frame 11 and preset in the center position of the upper front end of a pair of swing arms 4. The front cloth roller 12 corresponds to the front of the cloth roller frame 11 in the length direction, and the front cloth roller left shaft head and the front cloth roller right shaft head of the front cloth roller 12 are each rotatably supported on a front cloth roller shaft head pivot support seat 121, and the front cloth roller shaft head pivot support seat 121 is fixed to the front side of the cloth roller frame 11, and the rear cloth roller 13 corresponds to the rear of the cloth roller frame 11 in the length direction, and the rear cloth roller left shaft head and the rear cloth roller right shaft head of the rear cloth roller 13 are each rotatably supported on a rear cloth roller shaft head pivot support seat 131, and the rear cloth roller shaft head pivot support seat 131 is fixed to the rear side of the cloth roller frame 11.

[0026] See you next time Figure 1 The end of the cloth guide roller support shaft head 21 facing the cloth guide roller 2 corresponds to the center position of the cloth guide roller cavity 22 of the cloth guide roller 2 and is fixed to the cavity wall of the cloth guide roller cavity 22 through a group of cloth guide roller support shaft head spokes 211, and the end of the cloth guide roller support shaft head 21 extending outside the cloth guide roller cavity 22 is rotatably supported on the cloth guide roller shaft head pivot support bearing seat arranged on the winder in the use state, and the cloth guide roller 2 is driven to rotate by the cloth guide roller shaft head pivot driving device and the cloth guide roller shaft head driving device located at one end of the cloth guide roller 2 through the cloth guide roller support shaft head 21.

[0027] Depend on Figure 1 As shown, the aforementioned set of cloth guide roller support shaft head spokes 211 are distributed in a radial form, and the cloth guide roller support shaft heads 21 located at the left and right ends of the cloth guide roller 2 are connected by a cloth guide roller support shaft head connecting shaft 212 located in the aforementioned cloth guide roller cavity 22.

[0028] The aforementioned swing arm actuating wheel 5 is fixed to the side opposite to the rear end of the aforementioned pair of swing arms 4 (i.e., the back-to-back side of the pair of swing arms 4) through a swing arm actuating wheel screw 52, ​​and a swing arm actuating wheel bearing 51 is provided at the center position of the swing arm actuating wheel 5, and the swing arm actuating wheel bearing 51 is used to rotatably sleeve the swing arm actuating wheel 5 together with the rear end of the swing arm 4 on the aforementioned cloth guide roller support shaft head 21 at a position corresponding to the swing arm shaft head hole 41 opened at the rear end of the pair of swing arms 4. The characteristics of such a structure are: when the cloth guide roller support shaft head 21 drives the cloth guide roller 2 to rotate, the pair of swing arms 4 do not rotate; when the pair of swing arms 4 swing an angle as required, they will not drive the cloth guide roller support shaft head 21, so the movements of the two do not interfere with each other.

[0029] In this embodiment, the aforementioned swing arm actuating wheel 5 is a sprocket and is connected to the swing arm actuating wheel 5 by a chain of a swing arm actuating wheel actuating device arranged on the winder when in use, and the aforementioned swing arm actuating wheel driving device is a swing arm actuating wheel driving device with forward and reverse rotation functions.

[0030] Depend on Figure 1 As shown, a pivot arm rotation support hole 371 is provided at the lower end of each of the aforementioned pair of pivot arms 37, and a pivot arm rotation support shaft 42 is fixed on the opposite side of the front end of the aforementioned pair of swing arms 4 and at a position corresponding to the pivot arm rotation support hole 371, and the pivot arm rotation support hole 371 is pivotally matched with the pivot arm rotation support shaft 42.

[0031] A fixed beam fixing seat 311 is fixed at each end of the aforementioned working cylinder fixed beam 31, and the fixed beam fixing seat 311 is fixed to the opposite side of the lower front end portion of the aforementioned pair of swing arms 4 by screws.

[0032] The rear side of the nonwoven fabric cutting knife 35 in the length direction is formed with a nonwoven fabric cutting knife serrated edge 351. In the high-speed winding state, when the fully rolled nonwoven fabric 9 is to be cut, the nonwoven fabric cutting knife serrated edge 351 can instantly cut the nonwoven fabric 9.

[0033] In this embodiment, the aforementioned pair of pivot arm driving cylinders 38 are air cylinders; the aforementioned set of non-woven fabric cutting knife holder driving cylinders 39 are air cylinders.

[0034] See also Figure 2 And combined with Figure 1 ,exist Figure 2 A pair of frame wall panels 6 of the structural system of the cloth rolling machine are shown in the figure. The opposite sides of the pair of frame wall panels 6 are fixedly connected as a whole by a set of wall panel support beams 64. A pair of guide rails 61 are respectively arranged on the pair of frame wall panels 6, that is, there are two pairs of guide rails 61 in total. A first slider 611 is respectively arranged on a pair of guide rails 61, and a second slider 612 is respectively arranged on the other pair of guide rails 61. The non-woven fabric 9 formed by needle punching by the high-speed needle punching machine is sequentially passed through Figure 2 The cloth guide roller 2 is driven by power and rotates between a pair of frame wall panels 6, the middle cloth guide roller 63 and the structural system of the cloth cutting device of the present invention, and then reaches the cloth roll roller 7a via the spare cloth roll roller 7b. The cloth roll roller 7a is driven by the corresponding power device, i.e., the aforementioned cloth guide roller shaft head pivot drive device, to rotate and roll up the non-woven fabric 9. During the rolling process, as the diameter of the cloth roll 10 gradually increases, the cloth roll 10 gradually moves to the left under the sliding action of a pair of first sliders 611 that are respectively corresponding to each other and slidably arranged on a pair of guide rails 61. When the aforementioned cloth roll roller 7a is in the cloth rolling state, the cloth roll roller 7a of the present invention is rotated. Figure 1The cloth supporting mechanism 1, the nonwoven fabric cutting mechanism 3 and a pair of swing arms 4 are arranged in a Figure 2 The state of leaving the coordination with the cloth guide roller 2 is shown. In this state, specifically, the swing arm actuating wheel driving device acts on the swing arm driving wheel 5 through the chain, so that the aforementioned pair of swing arms 4 drive the cloth supporting mechanism 1 and the non-woven fabric cutting mechanism 3 to exit the cutting state of the non-woven fabric 9. When the diameter of the cloth roll 10 reaches the degree required by the process (usually by a meter or similar measuring component not shown in the figure and the signal is fed back to the electrical controller), the electrical controller issues a command to cut the non-woven fabric 9.

[0035] See also Figure 3 And combined with Figure 1 and Figure 2 When the nonwoven fabric 9 is cut off when the roll is changed, the swing arm actuating wheel driving device reverses the swing arm actuating wheel 5 (rotates) under the instruction of the aforementioned electrical controller, so that the front ends of the pair of swing arms 4 are relative to each other. Figure 2 The state is upward, that is, it moves in the clockwise direction, and at the same time drives the cloth supporting mechanism 1 and the non-woven fabric cutting mechanism 3 to enter the cloth cutting working state. In this state, due to the operation of a pair of pivot arm driving cylinders 38, the tensioning shaft 33 is in a tensioned state for the non-woven fabric 9, and under the synchronous operation of a group of non-woven fabric cutting knife holder driving cylinders 39 and in the cloth supporting state of the cloth supporting mechanism 1, the non-woven fabric cutting knife 35 is in a state of good contact with the non-woven fabric 9 passing through. In this state, the non-woven fabric passing through the serrated edge 351 of the non-woven fabric cutting knife is cut off, that is, the non-woven fabric passing through the serrated edge 351 of the non-woven fabric cutting knife is instantly cut off. After completing the cutting of the head of the non-woven fabric 9, the aforementioned swing arm actuating wheel 5 rotates in the opposite direction, and the pair of swing arms 4, the cloth supporting mechanism 1 and the non-woven fabric cutting mechanism 3 of the present invention return to Figure 2 The state shown. The head of the cut nonwoven fabric 9 falls onto the aforementioned spare cloth roll roller 7b. The same principle as mentioned above is used. The corresponding cloth guide roller shaft head pivot drive device drives the spare cloth roll roller 36 to rotate, and the nonwoven fabric 9 is wound up. During the winding process, as the diameter of the cloth roll 10 on the spare cloth roll roller 7b gradually increases, the cloth roll 10 gradually moves to the left under the action of the movement of another pair of second sliders 611 that are respectively corresponding to each other and slidingly arranged on another pair of guide rails 61. In the aforementioned process, the previous cloth roll roller 7a is unloaded by the online operator. Since the unloading method belongs to the existing technology, for example, it can be seen that CN108639810A (a cloth winding machine that is convenient for replacing rolls) is not limited to the example, and the applicant will not elaborate on it. After the cloth roll 10 is unloaded, the aforementioned cloth roll roller 7a evolves into the spare cloth roll roller 7b, so that it is in a state of being moved by Figure 2 In the position shown, the spare cloth rolling roller 7b that is rolling up the cloth substantially plays the role of the cloth rolling roller 7a.

[0036] In summary, the technical solution provided by the present invention makes up for the shortcomings of the existing technology, successfully completes the invention task, and faithfully realizes the technical effects stated by the applicant in the technical effect column above.

Claims

1. A cloth cutting device for a non-woven fabric winding machine, comprising a cloth supporting mechanism (1), a cloth guide roller (2), a non-woven fabric cutting mechanism (3) and a pair of swing arms (4) corresponding to each other on the left and right, the cloth supporting mechanism (1) being fixed between the upper front ends of the pair of swing arms (4), the two ends of the cloth guide roller (2) each having a cloth guide roller support shaft head (21), the non-woven fabric cutting mechanism (3) being connected to the middle and lower front ends of the pair of swing arms (4) on the opposite side and corresponding to the length direction of the cloth guide roller (2), a swing arm actuating wheel (5) being fixed on the opposite side of the rear ends of the pair of swing arms (4), the pair of swing arm actuating wheels (5) being rotatably sleeved on the cloth guide roller support shaft head (21) together with the rear ends of the pair of swing arms (4), characterized in that The nonwoven fabric cutting mechanism (3) comprises a cylinder fixing beam (31), a tensioning roller frame (32), a tensioning roller (33), a group of nonwoven fabric cutting knife frames (34), a nonwoven fabric cutting knife (35), a nonwoven fabric cutting knife frame connecting rod (36), a pair of pivot arms (37), a pair of pivot arm driving cylinders (38) and a group of nonwoven fabric cutting knife frame driving cylinders (39), the cylinder fixing beam (31) is fixed between the opposite sides of the lower front ends of the pair of swing arms (4), the tensioning roller frame (32) is fixed to the opposite sides of the upper ends of the pair of pivot arms (37). The tensioning roller (33) is rotatably supported between the upper ends of a pair of pivot arms (37) facing each other at a position above the tensioning roller frame (32) in the length direction. A group of non-woven fabric cutting knife frames (34) are spaced between the pair of pivot arms (37). The lower ends of the group of non-woven fabric cutting knife frames (34) are sleeved and fixed to the middle of a cutting knife frame connecting roller shaft (341) at the rear. The two ends of the cutting knife frame connecting roller shaft (341) are rotatably supported on a connecting roller shaft pivot support seat (3411). The connecting roller shaft pivot support seat (3411) is fixed to the working cylinder at a position corresponding to the upper end of the tensioning roller frame (32). The position above the end of the fixed beam (31) is fixed to the opposite side of the lower front end of the pair of swing arms (4); the non-woven fabric cutting knife (35) is fixed to the upper end of the non-woven fabric cutting knife holder (34) and corresponds to the upper front end in the length direction of the tensioning roller (33); the non-woven fabric cutting knife holder connecting rod (36) is fixedly connected to the middle of a group of non-woven fabric cutting knife holders (34); the lower ends of a pair of pivot arms (37) are pivotally connected to the opposite side of the middle of the front end of the pair of swing arms (4); a pair of pivot arm driving cylinders (38) are respectively fixed to the two ends of the cylinder fixed beam (31); the pair The pivot arm driving cylinder column (381) of the pivot arm driving cylinder (38) faces upward and is respectively hinged to the middle of the opposite sides of a pair of pivot arms (37); the number of a group of non-woven fabric cutting knife holder driving cylinders (39) is equal to the number of a group of non-woven fabric cutting knife holders (34) and is fixed on the cylinder fixing beam (31) at a position corresponding to a group of non-woven fabric cutting knife holders (34); the non-woven fabric cutting knife holder driving cylinder column (391) of the non-woven fabric cutting knife holder driving cylinder (39) faces upward and is hinged to the lower end front of a group of non-woven fabric cutting knife holders (34).

2. The cloth cutting device of the nonwoven fabric winding machine according to claim 1 is characterized in that The cloth supporting mechanism (1) comprises a cloth supporting roller frame (11), a front cloth supporting roller (12) and a rear cloth supporting roller (13); the cloth supporting roller frame (11) is fixed to the pair of swing arms (4) between the central positions corresponding to the upper front ends of the pair of swing arms (4); the front cloth supporting roller (12) corresponds to the front of the cloth supporting roller frame (11) in the length direction; and the front cloth supporting roller left shaft head and the front cloth supporting roller right shaft head of the front cloth supporting roller (12) are rotatably supported on the front cloth supporting roller shaft head pivot. The front cloth-supporting roller shaft head pivot support seat (121) is fixed to the front side of the cloth-supporting roller frame (11), the rear cloth-supporting roller (13) corresponds to the rear of the cloth-supporting roller frame (11) in the length direction, and the rear cloth-supporting roller left shaft head and the rear cloth-supporting roller right shaft head of the rear cloth-supporting roller (13) are rotatably supported on the rear cloth-supporting roller shaft head pivot support seat (131), and the rear cloth-supporting roller shaft head pivot support seat (131) is fixed to the rear side of the cloth-supporting roller frame (11).

3. The cloth cutting device of the nonwoven fabric winding machine according to claim 1, characterized in that One end of the cloth guide roller support shaft head (21) facing the cloth guide roller (2) corresponds to the central position of the cloth guide roller cavity (22) of the cloth guide roller (2) and is fixed to the cavity wall of the cloth guide roller cavity (22) via a group of cloth guide roller support shaft head spokes (211), and one end of the cloth guide roller support shaft head (21) extending outside the cloth guide roller cavity (22) is rotatably supported on a cloth guide roller shaft head pivot support bearing seat arranged on the winder in a state of use, and the cloth guide roller (2) is driven to rotate by a cloth guide roller shaft head pivot drive device and a cloth guide roller shaft head drive device located at one end of the cloth guide roller (2) via the cloth guide roller support shaft head (21).

4. The cloth cutting device of the nonwoven fabric winding machine according to claim 3 is characterized in that The group of cloth guide roller support shaft head spokes (211) are distributed in a radial form, and the cloth guide roller support shaft heads (21) located at the left and right ends of the cloth guide roller (2) are connected by a cloth guide roller support shaft head connecting shaft (212) located in the cloth guide roller cavity (22).

5. The cloth cutting device of the nonwoven fabric winding machine according to claim 1, characterized in that The swing arm actuating wheel (5) is fixed to the side opposite to the rear ends of the pair of swing arms (4) by means of a swing arm actuating wheel screw (52), and a swing arm actuating wheel bearing (51) is arranged at the center of the swing arm actuating wheel (5), and the swing arm actuating wheel bearing (51) rotatably sleeves the swing arm actuating wheel (5) together with the rear ends of the swing arms (4) on the support shaft head (21) of the cloth guide roller at a position corresponding to the swing arm shaft head hole (41) provided at the rear ends of the pair of swing arms (4).

6. The cloth cutting device of the nonwoven fabric winding machine according to claim 1 or 5, characterized in that The swing arm actuating wheel (5) is a sprocket and is connected to the swing arm actuating wheel (5) by a chain of a swing arm actuating wheel actuating device arranged on the winder when in use. The swing arm actuating wheel driving device is a swing arm actuating wheel driving device with forward and reverse rotation functions.

7. The cloth cutting device of the nonwoven fabric winding machine according to claim 1, characterized in that A pivot arm rotation support hole (371) is provided at the lower end of each of the pair of pivot arms (37), and a pivot arm rotation support shaft (42) is fixed at the opposite side of the front end of the pair of swing arms (4) and at a position corresponding to the pivot arm rotation support hole (371), and the pivot arm rotation support hole (371) is pivotally matched with the pivot arm rotation support shaft (42).

8. The cloth cutting device of the nonwoven fabric winding machine according to claim 1, characterized in that A fixed beam fixing seat (311) is fixed to each of the two ends of the cylinder fixed beam (31), and the fixed beam fixing seat (311) is fixed to the opposite side of the lower front end of the pair of swing arms (4).

9. The cloth cutting device of the nonwoven fabric winding machine according to claim 1, characterized in that The nonwoven fabric cutting knife (35) has a nonwoven fabric cutting knife serrated edge (351) formed on the rear side in the length direction.

10. The cloth cutting device of the nonwoven fabric winding machine according to claim 1, characterized in that The pair of pivot arm driving cylinders (38) are air cylinders; the group of non-woven fabric cutting knife frame driving cylinders (39) are air cylinders.

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