Longitudinal cutting structure for non-glue cotton

Abstract

A longitudinal cutting structure for non-glue cotton comprises a cutter shaft, the cutter shaft is sleeved with a plurality of cutters in the axis direction of the cutter shaft, the cutters are detachably connected with the cutter shaft, and the positions of blades are adjustable in the axis direction of the cutter shaft; the cutting knife comprises a blade and a knife holder which are integrally formed, the blade and the knife holder are coaxially arranged, mounting holes matched with the knife shaft are formed in the blade and the knife holder, the knife holder is detachably connected with the knife shaft through a limiting assembly, the limiting assembly comprises a first limiting piece and a second limiting piece, the first limiting piece penetrates through the knife holder to abut against the outer wall of the knife shaft, and the second limiting piece penetrates through the knife holder to abut against the outer wall of the knife shaft. And the other end of the second limiting piece is connected with the cutter shaft. The cutter shaft is sleeved with the cutter, the cutter is fastened to the cutter shaft in a double-fastening mode through the first limiting piece and the second limiting piece, the phenomenon that the cutter loosens and shakes due to long-term use is avoided, and the slitting quality problems of bevel edges, laces and the like in non-glue cotton slitting caused by loosening of the cutter are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a no -glue cotton cutting technical field, specifically to a no -glue cotton longitudinal cutting structure. BACKGROUND

[0002] In the processing of no -glue cotton (such as PP cotton, PE cotton, polyester fiber cotton etc.), it is usually necessary to cut the wide roll into different width strip or block to meet the size requirement of downstream products (such as filling cotton, filter material, soundproof cotton etc.).

[0003] At present, the common no -glue cotton longitudinal cutting equipment mainly adopts the mode of installing multiple disc knives on the cutter shaft to cut, but the knife blades of the existing cutting knives are generally welded or fixed on the cutter shaft by single bolt, the welding of the knife blade on the cutter shaft makes the spacing of the knife blade unadjustable, when cutting no -glue cotton of different width is needed, the knife blade must be disassembled and rearranged, or even the cutter shaft of different specifications is replaced, and the operation is tedious, although the knife blade can be adjusted by bolt fixed on the cutter shaft, but long -term use, bolt can be loose, the stability of the knife blade is influenced, and then the cutting quality of no -glue cotton is influenced, and the cutter shaft needs to be provided with several thread holes by bolt, if the thread holes are more, the strength of the cutter shaft is influenced, if the thread holes are less, the position adjustment range of the knife blade is limited. SUMMARY

[0004] To solve the technical problems in the background art, the utility model provides a no -glue cotton longitudinal cutting structure.

[0005] The utility model technical scheme is as follows:

[0006] A no -glue cotton longitudinal cutting structure, including cutter shaft, multiple cutting knives are sleeved on the cutter shaft along its axial direction, the cutting knife is detachably connected with the cutter shaft, and the position of the knife blade along the axial direction of the cutter shaft is adjustable;

[0007] The cutting knife includes integrally formed knife blade and knife seat, the knife blade and the knife seat are coaxially arranged, and the knife blade and the knife seat are provided with mounting holes matched with the cutter shaft, the knife seat is detachably connected with the cutter shaft through the limiting assembly, the limiting assembly includes first limiting piece and second limiting piece, the first limiting piece passes through the knife seat and is tightly connected to the outer wall of the cutter shaft, one end of the second limiting piece is connected with the knife seat, and the other end is connected with the cutter shaft.

[0008] Preferably, the cutter shaft is provided with multiple annular clamping grooves at equal intervals along its axial direction, and one end of the second limiting piece away from the knife seat is clamped with the annular clamping groove.

[0009] The specific structure of the second limiting part is that the second limiting part comprises a lockable telescopic rod, the telescopic rod comprises a first adjusting rod and a second adjusting rod, the first adjusting rod is detachably connected with the tool holder through a first fastener, and the second adjusting rod is provided with a clamping hook matched with the annular clamping groove at an end away from the tool holder.

[0010] Further, the clamping hook is detachably connected with the tool shaft through a second fastener.

[0011] Preferably, two sets of limiting assemblies are symmetrically arranged on the same tool holder.

[0012] As another arrangement of the limiting assembly, the limiting assemblies on adjacent tool holders are arranged in an up-and-down staggered mode.

[0013] Preferably, the maximum length that the cutting knife can reach along the axial direction thereof is greater than the vertical spacing of adjacent annular clamping grooves.

[0014] The connecting structure of the first adjusting rod and the second adjusting rod is that a sliding hole is formed in the middle of the second adjusting rod along the length direction thereof, the first adjusting rod is slidably connected with the sliding hole through a sliding rod, and the sliding rod is detachably connected with the second adjusting rod through a third fastener.

[0015] The utility model discloses the beneficial effect lies in:

[0016] The cutting knife is sleeved on the tool shaft, is fastened on the tool shaft through the double fastening mode of the first limiting part and the second limiting part, the phenomenon of cutting knife slack and shaking after long-term use is avoided, and the cutting quality problems such as bevel, lace and the like of the non-adhesive cotton slitting caused by cutting knife slack are reduced.

[0017] The first limiting part can fasten the cutting knife and the tool shaft directly through the tool holder, and the number of holes on the tool shaft is reduced.

[0018] The second limiting part can further fasten the cutting knife on the tool shaft in cooperation with the first limiting part, even if the first limiting part is loose, the phenomenon of cutting knife shaking or deviating along the axial direction of the tool shaft can also be reduced by relying on the second limiting part.

[0019] The total length of the first adjusting rod and the second adjusting rod of the second limiting part is adjustable, and the length of the first adjusting rod and the second adjusting rod after adjustment can be locked through the third fastener, the position adjustment of the cutting knife on the tool shaft can be realized in cooperation with the first limiting part, the tool shaft and the cutting knife thereon do not need to be replaced as a whole, the blade spacing adjustment range of adjacent cutting knives is large, and the condition of different slitting widths of most wide non-adhesive cotton can be met. BRIEF DESCRIPTION OF DRAWINGS

[0020] In the drawings:

[0021] Figure 1 It is a structural schematic view of the first embodiment.

[0022] Figure 2 For Figure 1 enlarged view of structure at A in the middle;

[0023] Figure 3 For

[0024] Figure 4 For

[0025] Figure 5 For Figure 4 enlarged view of structure at A-A in the middle;

[0026] Figure 6 For Figure 5 enlarged view of structure at B in the middle;

[0027] Figure 7 For

[0028] The components represented by the reference numerals in the drawings are as follows:

[0029] 1, knife shaft; 101, annular clamping groove; 2, cutting knife; 201, blade; 202, knife seat; 3, first limiting piece; 4, first adjusting rod; 5, second adjusting rod; 501, clamping hook; 502, sliding hole; 6, first fastener; 7, second fastener; 8, sliding rod; 9, third fastener. DETAILED DESCRIPTION

[0030] Example 1

[0031] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a glue-free cotton longitudinal cutting structure includes a knife shaft 1, a plurality of cutting knives 2 are sleeved on the knife shaft 1 along the axial direction of the knife shaft 1, the cutting knives 2 are detachably connected with the knife shaft 1, and the position of the blade 201 along the axial direction of the knife shaft 1 is adjustable.

[0032] The cutting knife 2 includes an integrally formed blade 201 and a knife seat 202, the blade 201 and the knife seat 202 are coaxially arranged, and the blade 201 and the knife seat 202 are both provided with mounting holes matched with the knife shaft 1, the knife seat 202 is detachably connected with the knife shaft 1 through a limiting assembly, the limiting assembly includes a first limiting piece 3 and a second limiting piece, the first limiting piece 3 penetrates the knife seat 202 to abut against the outer wall of the knife shaft 1, one end of the second limiting piece is detachably connected with the knife seat 202, and the other end of the second limiting piece is detachably connected with the knife shaft 1, and the first limiting piece 3 can be a bolt.

[0033] The knife shaft 1 is provided with a plurality of annular clamping grooves 101 at equal intervals along the axial direction of the knife shaft 1, and the end of the second limiting piece away from the knife seat 202 is clamped with the annular clamping groove 101.

[0034] Referring toFigure 2 , Figure 5 and Figure 6 As shown, the specific structure of the second limiting member is as follows: the second limiting member includes a lockable telescopic rod, the telescopic rod includes a first adjusting rod 4 and a second adjusting rod 5, the first adjusting rod 4 is detachably connected to the tool holder 202 through a first fastener 6, and the second adjusting rod 5 is provided with a hook 501 adapted to the annular groove 101 at the end away from the tool holder 202.

[0035] The hook 501 is directly engaged in the annular groove 101. During long-term use, the hook 501 may wobble. To improve the connection stability between the second limiting member and the cutter shaft 1, the hook 501 is detachably connected to the cutter shaft 1 via the second fastener 7. The second fastener 7 can be a bolt, which is threadedly connected to both the hook 501 and the cutter shaft 1. The hook 501 has a through first threaded hole, and the annular groove 101 has a second threaded hole. The bolt passes through the first threaded hole and connects to the second threaded hole.

[0036] To facilitate the adjustment range of the cutting blade 2 on the blade shaft 1 and to be suitable for most wide-width non-adhesive cotton slitting operations, the maximum length that the cutting blade 2 can reach along its axial direction is greater than the vertical distance between adjacent annular grooves 101.

[0037] See Figure 6 As shown, the connection structure between the first adjusting rod 4 and the second adjusting rod 5 is as follows: a sliding hole 502 is provided in the middle of the second adjusting rod 5 along its length direction; the first adjusting rod 4 is slidably connected to the sliding hole 502 through a sliding rod 8; the sliding rod 8 is detachably connected to the second adjusting rod 5 through a third fastener 9; specifically, the sliding rod 8 has an external thread through the lower outer wall of the sliding hole 502; the third fastener 9 is a nut; the nut is connected to the lower thread of the sliding rod 8; tightening the nut can tighten the sliding rod 8 onto the second adjusting rod 5; the outer diameter of the nut is larger than the width of the sliding hole 502.

[0038] In the above structure, the first limiting member 3 can directly pass through the tool holder 202 to fasten the cutting blade 2 to the tool shaft 1, reducing the number of openings on the tool shaft 1; the second limiting member can cooperate with the first limiting member 3 to further fasten the cutting blade 2 to the tool shaft 1. Even if the first limiting member 3 becomes loose, the second limiting member can reduce the phenomenon of the cutting blade 2 shaking on the tool shaft 1 or deviating along the axis of the tool shaft 1.

[0039] Moreover, the total length of the first adjusting rod 4 and the second adjusting rod 5 of the second limiting member is adjustable, and the adjusted length of the first adjusting rod 4 and the second adjusting rod 5 can be locked by the third fastener 9. It can work with the first limiting member 3 to realize the position adjustment of the cutting blade 2 on the cutting shaft 1 without replacing the cutting shaft 1 and the cutting blade 2 on it. The spacing between the blades 201 of adjacent cutting blades 2 has a large adjustment range, which can meet the slitting of most wide non-adhesive cotton strips.

[0040] In order to reduce the phenomenon of mass distribution imbalance of multiple cutting knives 2 on the same side of the cutter shaft 1, the limiting assemblies on the adjacent knife holders 202 are staggered up and down in this embodiment, the adjacent limiting assemblies are in the same plane, and the plane is perpendicular to the axis of the knife holder 202.

[0041] Embodiment 2

[0042] Referring to Figure 7 The difference between embodiment 2 and embodiment 1 is that the number and arrangement position of the limiting assemblies of embodiment 2 are different from those of embodiment 1. Two groups of limiting assemblies are symmetrically arranged on the same knife holder 202 in this embodiment, which can further improve the balance of the mass distribution of the cutting knives 2 on the cutter shaft 1 compared with embodiment 1.

Claims

1. A longitudinal cutting structure for non-adhesive cotton, comprising a cutter shaft (1), characterized in that, Multiple cutting blades (2) are sleeved on the blade shaft (1) along its axial direction. The cutting blades (2) are detachably connected to the blade shaft (1). The position of the blade (201) along the axial direction of the blade shaft (1) is adjustable. The cutting blade (2) includes an integrally formed blade (201) and a blade holder (202). The blade (201) and the blade holder (202) are coaxially arranged, and both the blade (201) and the blade holder (202) are provided with mounting holes adapted to the cutter shaft (1). The blade holder (202) is detachably connected to the cutter shaft (1) through a limiting component. The limiting component includes a first limiting member (3) and a second limiting member. The first limiting member (3) passes through the blade holder (202) and presses against the outer wall of the cutter shaft (1). One end of the second limiting member is connected to the blade holder (202), and the other end is connected to the cutter shaft (1).

2. The non-adhesive cotton longitudinal cutting structure according to claim 1, characterized in that, The cutter shaft (1) has multiple annular slots (101) spaced at equal intervals along its axial direction, and the end of the second limiting member away from the cutter holder (202) is engaged with the annular slots (101).

3. The non-adhesive cotton longitudinal cutting structure according to claim 2, characterized in that, The second limiting member includes a lockable telescopic rod, which includes a first adjusting rod (4) and a second adjusting rod (5). The first adjusting rod (4) is detachably connected to the tool holder (202) via a first fastener (6). The second adjusting rod (5) has a hook (501) adapted to the annular groove (101) at one end away from the tool holder (202).

4. The non-adhesive cotton longitudinal cutting structure according to claim 3, characterized in that, The hook (501) is detachably connected to the cutter shaft (1) via a second fastener (7).

5. The non-adhesive cotton longitudinal cutting structure according to claim 1, characterized in that, Two sets of limiting components are symmetrically provided on the same tool holder (202).

6. The non-adhesive cotton longitudinal cutting structure according to claim 1, characterized in that, The limiting components on adjacent tool holders (202) are arranged alternately.

7. The non-adhesive cotton longitudinal cutting structure according to claim 3, characterized in that, The maximum length that the cutting blade (2) can reach along its axial direction is greater than the vertical distance between adjacent annular slots (101).

8. The non-adhesive cotton longitudinal cutting structure according to claim 7, characterized in that, The second adjusting rod (5) has a sliding hole (502) in the middle along its length direction. The first adjusting rod (4) slides through the sliding rod (8) and the sliding hole (502). The sliding rod (8) is detachably connected to the second adjusting rod (5) through the third fastener (9).

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