A cross-cutting device for a winding machine with adjustable cutter angle

Abstract

The present invention discloses a cross-cutting device for a winding machine with an adjustable cutter angle, which relates to the technical field of textile machinery. The device comprises a U-shaped bending plate, with connecting plates provided at both ends of the U-shaped bending plate; a rodless cylinder is provided in the U-shaped bending plate, a slider connecting plate is provided on the slider of the rodless cylinder, and an air motor mounting seat is provided on the slider connecting plate; the air motor mounting seat comprises a base and a vertical plate, the base is provided with a circular hole and an arc-shaped oblong hole arranged coaxially with the circular hole, the slider connecting plate is provided with a first threaded hole and a second threaded hole, and the first threaded hole and the second threaded hole are respectively connected to the circular hole and the arc-shaped oblong hole by screws; the vertical plate is provided with an air motor, and a cutter assembly is provided on the power output shaft of the air motor. The cross-cutting device provided by the present invention enables the cutter to adapt to more spunlace fabrics with different fiber characteristics while achieving better cutting effect, thereby improving the winding efficiency of the spunlace fabric.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, and in particular to a cross-cutting device of a winding machine with adjustable cutter angle. Background Art

[0002] As the demand for non-woven spunlace fabrics increases, the production speed of non-woven spunlace fabrics is also getting higher and higher. As one of the important equipment in the non-woven spunlace production line, the winder requires the winder to have the function of automatic roll changing without stopping the machine. Therefore, whether it is a highly automated winder or a semi-automated winder, its cross-cutting knife cutting and roll changing must meet three conditions: first, it can automatically cut the non-woven fabric; second, it can quickly wind the cut non-woven fabric onto a new core shaft; third, the cutter automatically returns to its original position without damaging the non-woven fabric.

[0003] Since the fabric is in motion when the blade cuts the spunlace fabric, the cutting effect will be affected to a certain extent if the cutter angle remains unchanged. In addition, the fiber properties of different fabrics are different, and the cutter angle will also affect the cutting effect, which in turn affects the winding efficiency. Therefore, an efficient and fast cross-cutting device has become an urgent problem that needs to be solved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a cross-cutting device for a winding machine with an adjustable cutter angle, so as to solve the problems raised in the above background technology.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A cross-cutting device for a winding machine with an adjustable cutter angle comprises a U-shaped bending plate with connecting plates provided at both ends of the U-shaped bending plate;

[0007] A rodless cylinder is provided in the U-shaped bending plate, a slider connecting plate is provided on the slider of the rodless cylinder, and a pneumatic motor mounting seat is provided on the slider connecting plate;

[0008] The pneumatic motor mounting base includes a base and a vertical plate, the base is provided with a circular hole and an arc-shaped oblong hole arranged coaxially with the circular hole, the slider connecting plate is provided with a first threaded hole and a second threaded hole, and the first threaded hole and the second threaded hole are respectively connected to the circular hole and the arc-shaped oblong hole by screws;

[0009] The vertical plate is provided with an air motor, and a cutter assembly is provided on the power output shaft of the air motor.

[0010] Furthermore, the cutter assembly includes a clamping seat sleeved on the power output shaft of the pneumatic motor, and the clamping seat is sequentially sleeved with a cloth cutting blade and a blade pressure plate from left to right, and the cloth cutting blade is clamped and fixed between the clamping seat and the blade pressure plate.

[0011] Furthermore, the hole on the clamping seat for accommodating the power output shaft is a blind hole closed on the right side, and the power output shaft is sleeved with a spring clip located inside the clamping seat, and an expansion sleeve is sleeved on the spring clip. An expansion sleeve pressure plate is provided on the left side of the expansion sleeve, and the expansion sleeve pressure plate is connected to the clamping seat by bolts. Under the tightening action of the bolts, the expansion sleeve pressure plate presses the expansion sleeve, and the spring clip is tightened on the power output shaft through the expansion action of the expansion sleeve.

[0012] Furthermore, a square boss is provided on the right end surface of the clamping seat.

[0013] Furthermore, two expansion sleeves are provided on the spring clip, and a spacer sleeve is provided between the two expansion sleeves.

[0014] Furthermore, the clamping seat is provided with a circular boss, the cloth cutting blade is provided with a circular mounting hole matched with the circular boss, and the thickness of the cloth cutting blade is greater than the height of the circular boss.

[0015] Furthermore, the blade pressure plate is threadedly connected to the clamping seat.

[0016] Furthermore, a limiting plate is provided on the upper end surface of the vertical plate, the front end of the limiting plate is bent upward, and a long slot hole for accommodating the cloth cutting blade is provided at a position of the limiting plate corresponding to the cloth cutting blade.

[0017] Furthermore, a left support plate and a right support plate are respectively provided on the left and right sides of the U-shaped bending plate.

[0018] Furthermore, an air blowing device is provided in the U-shaped bending plate, and the air blowing device includes an air blowing pipe, and the air blowing holes on the air blowing pipe correspond one-to-one to the air holes provided on the right supporting plate.

[0019] The beneficial effects of the present invention are:

[0020] 1. By installing the cutting blade and the pneumatic motor on a mounting base that can be adjusted, the cross-cutting blade angle can be adjusted from 0° to 30°, allowing the cutter to adapt to spunlace fabrics with different fiber characteristics while achieving better cutting results and improving the winding efficiency of the spunlace fabric.

[0021] 2. Sleeve the circular mounting hole of the cloth cutting blade onto the circular boss of the clamping seat, which can not only quickly clamp the cloth cutting blade but also ensure the accurate positioning of the cloth cutting blade, make it easy to use and make blade replacement more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is a schematic diagram of the internal end face of the cross-cutting device;

[0024] Figure 2 Schematic diagram of the structure of the cross-cutting device;

[0025] Figure 3 This is a schematic diagram of the structure of a part of the cross-cutting device;

[0026] Figure 4 Schematic diagram of the structure of the slider connecting plate;

[0027] Figure 5 It is a structural diagram of the pneumatic motor mounting base;

[0028] Figure 6 Schematic diagram of the structure of the cutter assembly;

[0029] Figure 7 It is a structural diagram of the clamping seat;

[0030] Figure 8 It is a structural schematic diagram of the blade pressure plate;

[0031] Figure 9 Schematic diagram of the structure of the spring clip;

[0032] Figure 10 This is a schematic diagram of the installation structure of the cross-cutting device.

[0033] In the figure: clamping seat 1, cloth cutting blade 2, blade pressure plate 3, expansion sleeve 4, spacer 5, expansion sleeve pressure plate 6, bolt 7, spring clip 8, pneumatic motor 9, power output shaft 91, U-shaped bending plate 10, connecting plate 11, winding shaft 12, support plate 13, rodless cylinder 14, connecting piece 15, left support plate 16, right support plate 17, air hole 171, air blow pipe 18, slider connecting plate 19, first connecting plate 191, second connecting plate 192, first threaded hole 1921, second threaded hole 1922, pneumatic motor mounting seat 20, base 201, oblong hole 2011, round hole 2012, vertical plate 202, avoidance gap 2021, drag chain guard 21, drag chain 22, limit plate 23, spunlace 24, round boss 25, square boss 26. DETAILED DESCRIPTION

[0034] In order to enable people skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] like Figures 1 to 3 As shown, a cross-cutting device for a winding machine with an adjustable cutter angle includes a U-shaped bending plate 10. The U-shaped bending plate 10 includes a web, and the left and right ends of the web are respectively provided with wing plates extending upward perpendicular to the web. The web and wing plates together form a U-shaped structure with an opening facing the upper side. The U-shaped bending plate 10 is provided with connecting plates 11 at both ends. The connecting plates 11 are connected to the U-shaped bending plate 10 by fasteners, and the upper and lower end surfaces of the connecting plates 11 are flush with the upper and lower end surfaces of the U-shaped bending plate 10, respectively.

[0036] Furthermore, in order to support the spunlace fabric to be cross-cut, a left support plate 16 and a right support plate 17 are respectively provided on the left and right sides of the U-shaped bending plate 10. As a specific embodiment, the left support plate 16 and the right support plate 17 in this embodiment both include vertical portions, the upper ends of the vertical portions are provided with horizontal portions extending inwardly to the left and right sides, and the vertical and horizontal portions together form an L-shaped structure. The wing plates on the left and right sides of the U-shaped bending plate 10 are respectively fixedly connected to the vertical portions of the left support plate 16 and the right support plate 17 by screws, and the ends of the horizontal portions of the left support plate 16 and the right support plate 17 are provided with curled edges with openings facing outward (with the opposite side of the left and right support plates as the inner side).

[0037] Furthermore, in order to blow the cross-cut spunlace fabric 24 located on the right side of the right support plate 17 onto the next cloth winding shaft, a blowing device is provided on the inner side of the right support plate 17 (the side opposite to the left and right support plates is the inner side), and the blowing device includes a blowing pipe 18. A row of air holes 171 are provided on the vertical portion of the right support plate 17 near the bend, and the air holes 171 of the right support plate 17 correspond one-to-one to the air holes of the blowing pipe 18. Air pipe joints (not shown in the figure) are provided at both ends of the blowing pipe 18, and the air pipe joints are connected to the air compressor through an air pipe to achieve ventilation. When the spunlace fabric needs to be cross-cut, the air supply to the blowing pipe is achieved by controlling the solenoid valve.

[0038] The inner bottom of the U-shaped bending plate 10 is provided with a rodless cylinder 14, and the rodless cylinder 14 is connected to the U-shaped bending plate 10 through a connecting piece 15, and a slider connecting plate 19 is provided on the slider connecting plate 19 of the rodless cylinder 14, and an air motor mounting seat 20 is provided on the slider connecting plate 19. The left side of the rodless cylinder 14 is provided with a drag chain guard 21, and the left outer surface of the drag chain guard 21 (with the side opposite to the left and right support plates as the inner) is in contact with the left inner surface of the U-shaped bending plate 10 (with the side opposite to the left and right support plates as the inner). The bottom of the drag chain guard 21 is fixedly connected to the bottom of the U-shaped bending plate 10, and a drag chain 22 is provided inside the drag chain guard 21, one end of the drag chain 22 is fixedly connected to the slider connecting plate 19, and the other end of the drag chain 22 is fixedly connected to the middle part of the drag chain guard 21, and an air pipe for providing compressed air to the rodless cylinder is provided inside the drag chain 22.

[0039] like Figure 4 As shown, as a specific embodiment, the slider connecting plate 19 in this embodiment is composed of a first connecting plate 191 and a second connecting plate 192. The first connecting plate 191 and the second connecting plate 192 can be an integrated structure. The first connecting plate 191 is connected to one end of the drag chain 22. Four threaded holes are evenly arranged on the second connecting plate 192. The second connecting plate 192 is fixedly connected to the slider (not shown in the figure) on the rodless cylinder 14 by screws.

[0040] like Figure 5 As shown, the pneumatic motor mounting seat 20 is composed of a base 201 and a vertical plate 202 extending upward perpendicular to the base 201, and an avoidance notch 2021 is provided on the upper portion of the vertical plate 202. The base 201 of the pneumatic motor mounting seat 20 is provided with an arc-shaped oblong hole 2011 and a circular hole 2012. In order to achieve adjustable angle of the mounting seat, the second connecting plate 192 of the slider connecting plate 19 is provided with a first threaded hole 1921 and a second threaded hole 1922. The first threaded hole 1921 on the second connecting plate 192 is connected to the circular hole 2012 on the base 201 by a screw, and the second threaded hole 1922 on the second connecting plate 192 is connected to the arc-shaped oblong hole 2011 on the base 201 by a screw.

[0041] The pneumatic motor mounting base 20 is adjustable within a range of 0° to 30° relative to the second connecting plate 192 with the circular hole 2012 as the center. When the upper end of the arc-shaped oblong hole 2011 of the base 201 coincides with the second threaded hole 1922 of the second connecting plate 192, the right end face of the base 201 is parallel to the right end face of the second connecting plate 192; when the lower end of the arc-shaped oblong hole 2011 of the base 201 coincides with the second threaded hole 1922 on the second connecting plate 192, the right end face of the base 201 is at an angle of 30° to the right end face of the second connecting plate 192.

[0042] like Figure 3 、 Figure 6 、 Figure 9 As shown, an air motor 9 is provided on the vertical plate 202 of the air motor mounting seat 20, and a power output shaft 91 of the air motor 9 passes through the vertical plate 202 and extends to the right side of the vertical plate 202. The housing of the air motor 9 is connected to the vertical plate 202 by screws, and a cutter assembly is provided on the power output shaft 91 of the air motor 9. The cutter assembly includes a clamping seat 1, and a cloth cutting blade 2 is sleeved on the outside of the clamping seat 1. A blade pressure plate 3 is provided on the right side of the cloth cutting blade 2.

[0043] Furthermore, the clamping base 1 is internally sleeved with a clamping sleeve 4. In this embodiment, there are two clamping sleeves 4, symmetrically arranged on both sides. A spacer 5 is placed between the clamping sleeves 4. An expansion sleeve pressure plate 6 is located on the left side of the clamping sleeve 4. The expansion sleeve pressure plate 6 is connected to the clamping base 1 via bolts 7. A spring clip 8 is sleeved within the clamping sleeve 4, which is connected to the power output shaft 91 of the pneumatic motor 9.

[0044] Its working principle is that the bolt 7 tightens the expansion sleeve pressure plate 6 and the clamping seat 1, and the expansion sleeve pressure plate 6 presses the expansion sleeve 4. The expansion sleeve 4 expands under the action of the expansion sleeve pressure plate 6. At this time, the expansion sleeve 4 presses the internal spring clip 8, and the spring clip 8 locks the power output shaft 91 of the pneumatic motor 9 connected thereto.

[0045] like Figure 7 As shown, a square boss 26 is provided on the right end surface of the clamping seat 1, and a circular boss 25 is provided on the clamping seat 1. The cloth cutting blade 2 is provided with a circular mounting hole that matches the circular boss 25, that is, the circular mounting hole of the cloth cutting blade 2 is sleeved on the circular boss 25 of the clamping seat 1. As a specific embodiment, the cloth cutting blade 2 in this embodiment has an octagonal structure.

[0046] like Figure 7 、 Figure 8As shown, an external thread is provided on the outside of the clamping seat 1 away from the circular boss 25, and an internal thread is provided on the blade pressure plate 3. The side of the clamping seat 1 away from the circular boss 25 is threadedly connected to the blade pressure plate 3. As a specific implementation method, four slots are provided on the outside of the blade pressure plate 3 in this embodiment.

[0047] Furthermore, a limiting plate 23 is fixedly connected to the upper end surface of the vertical plate 202, the front end of the limiting plate 23 is bent upward, and the rear end surface of the limiting plate 23 is flush with the rear end surface of the vertical plate 202. A long slot is provided at the position of the limiting plate 23 corresponding to the cloth cutting blade 2, and the upper end of the cloth cutting blade 2 extends to the top of the limiting plate 23 through the long slot. An avoidance notch 2021 is provided on the vertical plate 202 just below the front end of the limiting plate 23. The limiting plate 23 is located above the spunlace fabric 24 to prevent the spunlace fabric 24 from moving up and down.

[0048] like Figure 10 As shown, during installation, the cross-cutting device is installed obliquely below the winding shaft, and the two ends of the cross-cutting device are respectively connected to the support plate 13, and the support plate 13 is connected to the large sprockets sleeved on the two ends of the winding shaft 12.

[0049] The specific work of the present invention is as follows:

[0050] The staff can adjust the position of the pneumatic motor mounting seat 20 according to the characteristics and specifications of the spunlace fibers. When the upper end of the arc-shaped oblong hole 2011 of the pneumatic motor mounting seat 20 coincides with the second threaded hole 1922 of the slider connecting plate 19, the cloth cutting blade 2 and the spunlace cloth 24 are at a 90° angle. When the lower end of the arc-shaped oblong hole 2011 of the pneumatic motor mounting seat 20 coincides with the second threaded hole 1922 on the slider connecting plate 19, the cloth cutting blade 2 and the spunlace cloth 24 are at a 60° angle. The angle between the cloth cutting blade 2 and the spunlace cloth 24 is adjustable between 60° and 90°, so that the cutter can adapt to more spunlace cloths with different fiber characteristics while having a better cutting effect and improving the winding efficiency of the spunlace cloth.

[0051] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are intended only to describe the present invention and do not require that the present invention must be constructed or operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense. For example, they can be connected or detachably connected; they can be directly connected or indirectly connected through an intermediate component. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0052] The above description is a preferred embodiment of the present invention, and the description of the specific embodiment is only for a better understanding of the concept of the present invention. For those skilled in the art, according to the principles of the present invention, several improvements or equivalent substitutions can be made, and these improvements or equivalent substitutions are also considered to fall within the scope of protection of the present invention.

Claims

1. A cross-cutting device for a winding machine with adjustable cutter angle, characterized in that: It includes a U-shaped bending plate, with connecting plates at both ends of the U-shaped bending plate; A rodless cylinder is provided in the U-shaped bending plate, a slider connecting plate is provided on the slider of the rodless cylinder, and a pneumatic motor mounting seat is provided on the slider connecting plate; The pneumatic motor mounting base includes a base and a vertical plate, the base is provided with a circular hole and an arc-shaped oblong hole arranged coaxially with the circular hole, the slider connecting plate is provided with a first threaded hole and a second threaded hole, and the first threaded hole and the second threaded hole are respectively connected to the circular hole and the arc-shaped oblong hole by screws; The vertical plate is provided with an air motor, and the power output shaft of the air motor is provided with a cutter assembly; The cutter assembly includes a clamping seat sleeved on the power output shaft of the pneumatic motor, and a cloth cutting blade and a blade pressure plate are sleeved on the clamping seat in sequence from left to right, and the cloth cutting blade is clamped and fixed between the clamping seat and the blade pressure plate; The hole on the clamping seat for accommodating the power output shaft is a blind hole with its right side closed. A spring clip is sleeved on the inside of the clamping seat on the power output shaft. An expansion sleeve is sleeved on the spring clip. An expansion sleeve pressure plate is provided on the left side of the expansion sleeve. The expansion sleeve pressure plate is connected to the clamping seat by a bolt. Under the tightening action of the bolt, the expansion sleeve pressure plate presses the expansion sleeve, and the spring clip is tightened on the power output shaft through the expansion action of the expansion sleeve. The clamping seat is provided with a circular boss, the cloth cutting blade is provided with a circular mounting hole matched with the circular boss, and the thickness of the cloth cutting blade is greater than the height of the circular boss; The present invention works as follows: a worker can adjust the position of the pneumatic motor mounting base according to the fiber characteristics and specifications of the spunlace fabric. When the upper end of the arc-shaped oblong hole of the pneumatic motor mounting base coincides with the second threaded hole of the slider connecting plate, the cloth cutting blade forms a 90° angle with the spunlace fabric. When the lower end of the arc-shaped oblong hole of the pneumatic motor mounting base coincides with the second threaded hole of the slider connecting plate, the cloth cutting blade forms a 60° angle with the spunlace fabric. The angle between the cloth cutting blade and the spunlace fabric is adjustable between 60° and 90°. The cutter can adapt to a wider range of spunlace fabrics with different fiber characteristics, while achieving a better cutting effect and improving the winding efficiency of the spunlace fabric. A square boss is provided on the right end surface of the clamping seat; The spring clip is provided with two expansion sleeves, and a spacer is provided between the two expansion sleeves; The upper end surface of the vertical plate is fixedly connected to a limit plate, the front end of the limit plate is bent upward, and the rear end surface of the limit plate is flush with the rear end surface of the vertical plate, and a long slot is provided on the limit plate at a position corresponding to the cloth cutting blade, and the upper end of the cloth cutting blade passes through the long slot and extends to the top of the limit plate, and an avoidance notch is provided on the vertical plate just below the front end of the limit plate. The limit plate is located above the spunlace cloth to prevent the spunlace cloth from moving up and down; when installed, the cross-cutting device is installed obliquely below the winding shaft, and the two ends of the cross-cutting device are respectively connected to the support plate, and the support plate is connected to the large sprockets sleeved on both ends of the winding shaft; A left support plate and a right support plate are respectively provided on the left and right sides of the U-shaped bending plate; An air blowing device is provided in the U-shaped bending plate, and the air blowing device includes an air blowing pipe. The air blowing holes on the air blowing pipe correspond one-to-one to the air holes provided on the right supporting plate.

2. A cross-cutting device for a winding machine with adjustable cutter angle according to claim 1, characterized in that: The blade pressure plate is threadedly connected to the clamping seat.

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