CN111360887B

CN111360887B - Square cotton production machine

Info

Publication number: CN111360887B
Application number: CN202010140068.5A
Authority: CN
Inventors: 丁彩红; 彭倚天; 杨延竹; 赵建刚; 杨柳
Original assignee: Suzhou Suzuran Sanitary Goods Co ltd; Donghua University
Current assignee: Suzhou Suzuran Sanitary Goods Co ltd; Donghua University
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2022-06-17
Anticipated expiration: 2040-03-03
Also published as: CN111360887A

Abstract

The invention relates to a square cotton production machine which comprises a material receiving table, a slitting machine and a material rack, wherein the material rack is used for placing a cotton cloth raw material roll with a certain width, the slitting machine is used for slitting cotton cloth into square cotton with the height H multiplied by the width W, and the material receiving table is used for placing the produced square cotton. Because a servo driving and controlling system is adopted and the working table surface of the receiving table can be lifted to adapt to placing square cotton sheets with different heights, the machine can produce square cotton sheets with various specifications, and has better production adaptability and higher production efficiency.

Description

Square cotton production machine

Technical Field

The invention relates to the field of cotton piece slitting production, in particular to a square piece cotton production machine.

Background

The square cotton quilt is widely applied to the fields of daily makeup cleaning or medical treatment and sanitation and has various specifications. The cotton and non-woven fabrics are laminated into cotton cloth, and the cotton cloth is cut longitudinally and transversely to form square cotton sheets with different purposes. The specifications of square cotton sheets are different, and the prior cotton sheet slitting machine can only produce cotton sheets with one specification generally, so that the adaptability is relatively poor.

Disclosure of Invention

The purpose of the invention is: realize a production machine which can be used for producing square cotton sheets with different sizes and specifications.

In order to achieve the purpose, the technical scheme of the invention is to provide a square cotton production machine which is characterized by comprising a material receiving table, a slitting machine and a material frame, wherein the material frame is used for placing a cotton cloth raw material roll with a certain width, the cotton cloth pulled out from the raw material roll is slit into square cotton with the height of H and the width of W by the slitting machine, and the material receiving table is used for placing the produced square cotton; will connect material platform place side to define the front side of square piece cotton production machine, define the back side of square piece cotton production machine with material rest place side, when the people face the front side of standing at square piece cotton production machine, the left side is defined the left side of square piece cotton production machine, the right side of square piece cotton production machine is defined to the right side of the left side, then there:

the slitting machine comprises a traction assembly, a longitudinal slitting cutter assembly and a transverse slitting cutter assembly, wherein cotton cloth pulled out of a raw material roll is sequentially pulled to the longitudinal slitting cutter assembly and the transverse slitting cutter assembly by the traction assembly at a preset conveying speed V, the longitudinal slitting cutter assembly is adjusted according to different widths W of square cotton to be produced, the longitudinal slitting cutter assembly longitudinally slits the cotton cloth into M narrow-width cotton pieces I with the widths W, the transverse slitting cutter assembly transversely cuts the M narrow-width cotton pieces I at time intervals T in the front and rear directions, the M narrow-width cotton pieces I are transversely cut into M square cotton pieces with the heights H and the widths W during each cutting, and the time intervals T and/or the conveying speed V are/is adjusted to adapt to different heights H of the square cotton pieces to be produced.

Preferably, the roll of stock material is freely rotatable after being placed on the stack.

Preferably, the cotton cloth is fed longitudinally to the rip knife assembly by the tow assembly and the M strips of narrow width cotton are fed longitudinally to the cross-cut knife assembly by the tow assembly.

Preferably, the longitudinal cutter assembly comprises a bed cutter shaft and a circular cutter shaft which are horizontally arranged along the left-right direction, and M +1 bed cutters are axially arranged at equal bed cutter intervals D₁Coaxially arranged on the bottom cutter shaft, M +1 circular cutters axially arranged at equal intervals D₂Coaxially arranged on a circular cutter shaft, and the distance D between the bed cutters is adjusted according to different widths W of square cotton sheets to be produced₁And the distance D between the circular cutters₂And respectively fixing the bottom cutter and the circular cutter on the bottom cutter shaft and the circular cutter shaft after the distance is equal to W. Arrange around one to one of M +1 circle sword and M +1 dead knife, the cutting edge of the M's dead knife and the M's dead knife is laminated each other on the left and right sides orientation, and has the coincidence face radially, and M1, 2, … …, M +1, the cotton is fed between dead knife axle and the circle arbor to by M +1 circle sword and M +1 dead knife will the vertical cutting of cotton is the cotton piece of M +2 narrow widths, respectively has a narrow width cotton piece two as slitter edge material to be drawn alone and derive in the breadth both sides that lie in the cotton piece of M +2 narrow widths the cotton piece one of M width for W in the outside of cutting machine, remaining narrow width cotton piece forms the cotton piece of narrow width.

Preferably, the transverse cutting knife assembly comprises a fixed knife, a movable knife and a movable knife driving assembly driven by a servo motor, wherein the fixed knife, the movable knife and the movable knife driving assembly are fixed in position, the M narrow cotton pieces vertically descend to the lower portion of the movable knife along the longitudinal direction at the rear side of the cutting edge of the fixed knife, the movable knife is fixed at the output end of the movable knife driving assembly, the movable knife driving assembly drives the movable knife to horizontally reciprocate along the front-back direction at a time interval T, and when the movable knife moves forwards in place, the movable knife and the fixed knife are matched to transversely cut the M narrow cotton pieces into square cotton pieces with the height H determined by the time interval T and/or the conveying speed V.

Preferably, the movable knife is arranged below the fixed knife, and when the movable knife moves forwards to a proper position, the cutting edge of the movable knife is meshed with the cutting edge of the fixed knife up and down.

Preferably, the material receiving table comprises a working table top capable of moving at least up and down, and the distance D between the upper surface of the working table top and the blade of the fixed knife in the vertical direction is adjusted by the up and down movement of the working table top₃So that a distance D₃Is adapted to the height H of the square cotton piece to be produced.

Preferably, the material receiving platform further comprises a fixed frame, a movable rack, a first guide mechanism, a second guide mechanism and a jacking mechanism, wherein:

the machine body of the jacking mechanism is fixed on the fixed frame, the output end of the jacking mechanism is fixedly connected with the movable rack, the movable rack does vertical lifting motion relative to the fixed frame along the first guide mechanism under the action of the jacking mechanism, the working table is arranged on the movable rack through the second guide mechanism, and the working table does horizontal left-right reciprocating motion along the second guide mechanism relative to the movable rack under the action of the cylinder.

Preferably, the square cotton production machine further comprises a longitudinal cutting detector, and the M narrow cotton pieces with the width W pass through the longitudinal cutting detector under the traction of the traction assembly and are then fed into the transverse cutting knife assembly;

the longitudinal detector comprises a needle-shaped thin rod positioned at the front end and a body with a fixed position, the needle-shaped thin rod is fixedly connected to the body through a spring in a cantilever mode, and the needle-shaped thin rod at the front end of each longitudinal detector is inserted between two adjacent left and right narrow cotton pieces in a one-to-one correspondence mode.

Preferably, the subassembly that draws includes by servo motor driven draft roller group and the unpowered transition roller that can freely rotate, and wherein, draft roller group includes first draft roller group and second draft roller group, will be around through the transition roller by first draft roller group the cotton draws extremely the vertical cut knife tackle spare is drawn by the second and is organized the M width is W's narrow width cotton piece one draws extremely the horizontal cut knife tackle spare, and the rotational speed that the roller was organized is drawn to the second is greater than the rotational speed of first draft roller group.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the slitting machine adopts a servo control technology, can flexibly control the cotton piece conveying capacity, is combined with a material receiving platform with a lifting function, can realize the production of square pieces of various specifications, is convenient and quick to switch different specifications, and has better production adaptability and higher production efficiency.

Drawings

FIG. 1 is a schematic structural composition of the present invention;

FIG. 2 is a schematic longitudinal cross-sectional view of FIG. 1;

figure 3 is a schematic view of a longitudinal cutter assembly according to the present invention.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

As shown in figure 1, the square cotton production machine provided by the invention comprises a receiving table 1, a slitting machine 2 and a material rack 3 which are arranged in a front-middle-rear manner. The material rack 3 is used for placing a cotton cloth raw material roll with a certain width, the raw material roll can freely rotate on the material rack 3, a cotton cloth 4 pulled out of the raw material roll is cut into square cotton pieces with a certain height and width by the slitting machine 2, and the material receiving table 1 is used for placing produced square cotton pieces 5.

For convenience of description, the side where the material receiving platform 1 is located is defined as the front side of a square cotton production machine, the side where the material rack 3 is located is defined as the rear side of the square cotton production machine, the left side is defined as the left side of the square cotton production machine when a person faces the front side of the square cotton production machine, and the right side is defined as the right side of the square cotton production machine.

As shown in fig. 2, the slitting machine 2 for slitting cotton cloth 4 into square cotton pieces 5 having a height H and a width W includes a drawing unit, a slitting blade unit 25, a cross-slitting blade unit, a longitudinal slitting detector 24, a frame on which these units are mounted, and a servo control system for powering the moving units.

With reference to fig. 2, the draw assembly comprises a first draw roller set 26, a second draw roller set 23, unpowered transition rollers 28a, 28b, 28c which are freely rotatable. The rip knife assembly 25 includes a bed knife shaft 2501, a bed knife 2503, a circular knife shaft 2502, and a circular knife 2504. The transverse cutting knife assembly comprises a movable knife driving assembly, a movable knife 27 and a fixed knife 22. The first drawing roller set 26, the second drawing roller set 23, the longitudinal knife assembly 25 and the movable knife 27 have movements as shown in fig. 2, the drive power and the speed of movement of which are controlled by the servo control system of the slitting machine 2.

The first traction roller set 26 and the second traction roller set 23 are both dynamic meshing type counter roller sets, and both comprise a driving roller and a driven roller with the same diameter as the driving roller. The driving roller and the driven roller are through long rollers and are horizontally arranged between the left side wall plate and the right side wall plate of the rack along the left-right direction. The rotational speed of the second set of traction rollers 23 is greater than the rotational speed of the first set of rollers 26.

The first set of draw rolls 26 starts drawing the cotton 4 from the cotton stock roll forward into the slitting machine 2. The cotton 4 is fed horizontally to a first set of draw rolls 26 after passing through transition rolls 28a, 28 b. The cotton cloth 4 is driven by the first traction roller group 26 to move forwards, pass through the transition roller 28c and then vertically and downwards enter the longitudinal cutter assembly 25.

Referring to fig. 3, the longitudinal cutter assembly 25 includes a bed knife shaft 2501, a bed knife 2503, a circular knife shaft 2502, and a circular knife 2504. The bottom knife shaft 2501 and the circular knife shaft 2502 are all through long cylindrical shafts with power, and are horizontally arranged between the left side wall plate and the right side wall plate of the rack in an equal center height manner along the left-right direction. The M +1 bed knives 2503 are coaxially mounted on the bed knife shaft 2501 at equal intervals along the axial direction. The M +1 circular cutters 2504 are coaxially mounted on the circular cutter shaft 2502 at equal intervals along the axial direction. Bed knife interval D between two bed knives 2503 adjacent to each other on the left and right₁A circular knife interval D between two circular knives 2504 adjacent to each other on the left and right₂Equal, the width W of the square piece of cotton to be produced. According to different widths W of square cotton to be produced, the bed knife 2503 and the round knife 2504 are axially moved, and the bed knife interval D is adjusted₁And the distance D between the circular cutters₂After W is reached, a bed knife 2503 and a circular knife 2504 are fixed to the bed knife shaft 2501 and the circular knife shaft 2502, respectively. The M +1 circular knives 2504 and the M +1 bed knives 2503 are arranged one-to-one in front and back. The cutting edges of the mth bed knife 2503 and the mth circular knife 2504 are attached to each other in the left-right direction, and have overlapping surfaces in the radial direction, where M is 1,2, … …, and M + 1. The cotton cloth 4 is fed between the bed knife shaft 2501 and the circular knife shaft 2502, thereby the cotton cloth 4 is longitudinally cut into M +2 narrow cotton pieces by M +1 circular knives 2504 and M +1 bed knives 2503. Two narrow cotton sheets 42 which are positioned on two sides of the width of the cotton cloth 4 in the M +2 narrow cotton sheets are independently drawn and guided out to the outer side of the slitting machine 2 as waste edge materials, and the remaining narrow cotton sheets form M narrow cotton sheets 41 with the width of W. The M narrow width cotton pieces 41 with the width W downwards pass through the longitudinal section detector 24 and enter the second traction roller group 23. The second traction roller group 23 continues to drive the M strips of narrow cottonSlice one 41 enters the cross-sectioning knife assembly.

The longitudinal cutting detector 24 has M +1 pieces, and is disposed between the longitudinal cutting blade assembly 25 and the second pull roller group 23. The longitudinal section detector 24 includes a needle-like thin rod at the tip and a fixed body. The needle-shaped thin rods are fixedly connected to the body in a cantilever mode through springs, and the needle-shaped thin rods at the front ends of the longitudinal detectors 24 are inserted between the two adjacent left and right narrow cotton pieces 41 in a one-to-one correspondence mode.

The horizontal slitting knife assembly comprises a movable knife driving assembly, a movable knife 27 and a fixed knife 22. The movable knife 27 and the fixed knife 22 are both thin plate parts, the position of the fixed knife 22 is fixed, and the movable knife 27 is fixed at the output end of the movable knife driving component. The moving blade driving assembly makes the moving blade 27 reciprocate horizontally back and forth at time intervals T according to the working principle of the slider-crank mechanism. The movable knife 27 is arranged below the fixed knife 22, and when the movable knife 27 moves backwards, the M narrow cotton slices one 41 vertically descend at the rear side of the cutting edge of the fixed knife 22 and enter below the movable knife 27. When the movable knife 27 moves forward until the blade edge of the movable knife 27 is engaged with the blade edge of the fixed knife 22 up and down, the M strips of the first narrow-width cotton slices 41 are cut into M square cotton slices 5 with the height of H and the width of W.

The moving blade driving assembly comprises a moving blade shaft 2101 driven by a servo motor, a crank connecting rod assembly 2102 and a moving blade seat 2103. The movable knife 27 is fixed on the movable knife holder 2103. The movable knife shaft 2101 drives the movable knife holder 2103 to horizontally reciprocate along the guide by the crank connecting rod assembly 2102 according to the working principle of the crank slider mechanism, so that the movable knife 27 horizontally reciprocates back and forth.

The square cotton 5 cut by the transverse cutting knife assembly vertically falls on the working table surface of the material receiving table 1, and the square cotton 5 is cut and simultaneously pushed forward by the movable knife 27. The receiving platform 1 comprises a fixed frame 11, a movable platform 12, a working platform 13, a first guide mechanism 14, a second guide mechanism 15 and a jacking mechanism 16. The body of the jacking mechanism 16 is fixed on the fixed frame 11, and the output end of the jacking mechanism is fixedly connected with the movable rack 12. The movable stand 12 is vertically moved up and down along the first guide mechanism 14 relative to the fixed frame 11 by the lift mechanism 16. The working table 13 and the second guide mechanism 15 are fixed on the movable table 12. The working table 13 is reciprocated horizontally along the second guide mechanism 15 with respect to the movable table 12 at a certain time by the cylinder.

The working table surface 13 extends into the slitting machine 2 and is arranged below the fixed knife 22, and the vertical distance between the upper surface of the working table surface 13 and the cutting edge of the fixed knife 22 can be set to be H through the lifting of the jacking mechanism 16. The square cotton 5 vertically falls on the working table surface 13 of the receiving table 1 and is pushed out a distance forward on the working table surface 13 by the moving knife 27 which moves forward continuously. The moving blade 27 is then moved rearwardly by the crank link assembly 2102 to begin the next cutting cycle.

The servo control system comprises a first servo motor, a second servo motor, a mechanical power distribution system and corresponding control software. An output shaft of the first servo motor is fixedly connected with a driving roller of the first traction roller set 26 to provide power for the first traction roller set 26, and then the output shaft respectively provides power for the second traction roller set 23 and the longitudinal cutter assembly 25 through a mechanical power distribution system. An output shaft of the second servo motor is fixedly connected with the movable knife shaft 2101 to drive the movable knife 27 to horizontally reciprocate.

Claims

1. A square cotton production machine is characterized by comprising a receiving platform (1), a slitting machine (2) and a material rack (3), wherein the material rack (3) is used for placing a cotton cloth raw material roll with a certain width, cotton cloth (4) pulled out of the raw material roll is slit into square cotton with the height of H and the width of W by the slitting machine (2), and the receiving platform (1) is used for placing produced square cotton (5); define the side of connecing material platform (1) place as the front side of square piece cotton production machine, define the rear side of square piece cotton production machine with work or material rest (3) place side, when the people face and stand at the front side of square piece cotton production machine, the left side is defined as the left side of square piece cotton production machine, the right side of right definition as square piece cotton production machine, then have:

the slitting machine (2) comprises a traction assembly, a longitudinal cutter assembly (25) and a transverse cutter assembly, wherein cotton cloth (4) pulled out from a raw material roll is sequentially pulled to the longitudinal cutter assembly (25) and the transverse cutter assembly by the traction assembly at a preset conveying speed V, the longitudinal cutter assembly (25) is adjusted according to different widths W of square cotton to be produced, the cotton cloth (4) is longitudinally slit into M narrow cotton pieces (41) with the widths W by the longitudinal cutter assembly (25), the M narrow cotton pieces (41) are transversely cut by the transverse cutter assembly at time intervals T in the front and rear directions, and during each cutting, cutting the M narrow cotton pieces I (41) into M square cotton pieces (5) with the height of H and the width of W according to a certain height of H, the time interval T and/or the conveying speed V are/is adjusted to adapt to different heights H of square cotton pieces to be produced;

the longitudinal cutter assembly (25) comprises a bottom cutter shaft (2501) and a circular cutter shaft (2502) which are horizontally arranged along the left-right direction, and M +1 bottom cutters (2503) are arranged at equal bottom cutter intervals D along the axial direction₁Coaxially arranged on a bottom cutter shaft (2501), and M +1 circular cutters (2504) are arranged at equal circular cutter intervals D along the axial direction₂Is coaxially arranged on the circular knife shaft (2502); adjusting the space D between the bed knives according to different widths W of square cotton sheets to be produced₁And the distance D between the circular cutters₂After the distance W is equal to W, a bottom knife (2503) and a circular knife (2504) are respectively fixed on a bottom knife shaft (2501) and a circular knife shaft (2502); m +1 circular cutters (2504) and M +1 bed cutters (2503) are arranged in a one-to-one front-back mode, the cutting edges of the mth bed cutter (2503) and the mth circular cutter (2504) are attached to each other in the left-right direction, the M =1,2, … … and M +1 are in a radial direction; the cotton cloth (4) is fed between the bottom cutter shaft (2501) and the circular cutter shaft (2502), so that M +1 circular cutters (2504) and M +1 bottom cutters (2503) longitudinally cut the cotton cloth (4) into M +2 narrow-width cotton sheets, a narrow-width cotton sheet II (42) which is positioned on two sides of the width of the cotton cloth (4) in the M +2 narrow-width cotton sheets is separately pulled and guided out to the outer side of the slitting machine (2) as scrap edge, and the residual narrow-width cotton sheets form M narrow-width cotton sheets I (41) with the width of W;

the square cotton production machine also comprises a longitudinal cutting detector (24), and the M narrow-width cotton pieces I (41) with the width W pass through the longitudinal cutting detector (24) under the traction of the traction assembly and are then sent to the transverse cutting knife assembly;

the longitudinal detector (24) comprises a needle-shaped thin rod at the front end and a fixed body, the needle-shaped thin rod is fixedly connected to the body through a spring in a cantilever mode, and the needle-shaped thin rod at the front end of each longitudinal detector (24) is inserted between two adjacent left and right narrow cotton pieces (41) in a one-to-one correspondence mode.

2. The square cotton production machine according to claim 1, wherein the transverse cutting knife assembly comprises a fixed knife (22), a movable knife (27) and a movable knife driving assembly driven by a servo motor, the M narrow cotton pieces (41) vertically descend below the movable knife (27) along the longitudinal direction at the rear side of the cutting edge of the fixed knife (22), the movable knife (27) is fixed at the output end of the movable knife driving assembly, the movable knife driving assembly drives the movable knife (27) to horizontally reciprocate along the front-back direction at the time interval T, and when the movable knife (27) moves forwards to a position, the movable knife (27) and the fixed knife (22) are matched to transversely cut the M narrow cotton pieces (41) into the square cotton pieces (5) with the height H and the width W according to the height H.

3. The square cotton production machine according to claim 2, wherein the movable knife (27) is disposed below the fixed knife (22), and when the movable knife (27) is moved forward to a position, the cutting edge of the movable knife (27) and the cutting edge of the fixed knife (22) are engaged up and down.

4. A square cotton production machine according to claim 2, characterized in that the receiving table (1) comprises at least a table top (13) which can be moved up and down, and the distance D between the upper surface of the table top (13) and the cutting edge of the stationary knife (22) in the vertical direction is adjusted by the up and down movement of the table top (13)₃So that a distance D₃Is adapted to the height H of the square cotton piece to be produced.

5. A square cotton production machine according to claim 1, wherein the drawing assembly comprises a drawing roller set driven by a servo motor and a freely rotatable unpowered transition roller, wherein the drawing roller set comprises a first drawing roller set (26) and a second drawing roller set (23), the cotton cloth (4) passing around the transition roller is drawn to the longitudinal slitting knife assembly (25) by the first drawing roller set (26), the M narrow width cotton pieces (41) with the width W are drawn to the transverse slitting knife assembly by the second drawing roller set (23), and the rotation speed of the second drawing roller set (23) is greater than that of the first drawing roller set (26).