Quick-release knife rest of towel slitting machine

Abstract

The utility model provides a quick-release knife rest of a towel slitting machine, which comprises a rotating shaft, a supporting seat and a locking seat, wherein the supporting seat and the locking seat are sequentially sleeved on the rotating shaft and are used for clamping a knife blade; the rotating shaft is provided with a limiting ring, a protruding strip and a locking block, and gaps are formed between the limiting ring and the protruding strip and between the protruding strip and the locking block. Grooves matched with the protruding strips are formed in the inner wall of the supporting base. The inner wall of the locking seat is provided with a receding groove for the locking block to pass through, the end face, away from the supporting seat, of the locking seat is provided with a locking groove matched with the locking block, and a gap is formed between the locking groove and the receding groove. The locking piece is inserted between the supporting base and the limiting ring, so that when the locking block is located in the locking groove, the limiting ring, the locking piece, the supporting base, the blade and the locking base are sequentially connected in an abutting mode. The mounting mode of the blade is changed by changing the shapes of the knife rest and the rotating shaft, so that the technical problem that time and labor are consumed in disassembly and assembly due to the fact that the blade is fixed by a traditional knife rest through several screws is solved, and the blade is quickly and conveniently disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of fabric cutting equipment, in particular to a knife holder for a towel slitting machine. Background Art

[0002] In order to improve production efficiency, today's towel weaving machines are usually larger, and the products they weave are the width of two or even more towels. In subsequent processing, they are then cut longitudinally and transversely, and then go through processes such as edge locking, folding, and packaging to complete the production of a single towel.

[0003] Towel slitting machines usually use rotating circular blades to cut taut cloth. During the operation of the equipment, it is inevitable that thread ends will be entangled on the knife holder and in the gap between the knife holder and the blade. If the thread ends continue to accumulate, it is possible that the thread ends will extend along the rotating shaft toward the motor, and even increase the motor load, damage the bearing components, and reduce the cutting positioning accuracy. At this time, the machine can only be stopped, the blade can be removed from the knife holder, the thread ends can be cleaned off, and the blade can be reinstalled.

[0004] The common installation method is usually to use at least three screws to tighten the blade to the tool holder. Removing the screws is not only extremely time-consuming, but if the operation is improper, it is also easy for the removal tool to damage the cutting edge of the blade. Therefore, a tool holder that is easy and quick to disassemble and assemble is needed to reduce downtime and improve production efficiency. Utility Model Content

[0005] In view of the deficiencies existing in the prior art, the utility model provides a quick-detachable blade holder for a towel slitting machine, which solves the problem of long downtime caused by the inconvenience of removing the blade to clean the thread ends in the prior art.

[0006] According to an embodiment of the utility model, a quick-release knife holder for a towel slitting machine comprises: a rotating shaft and a support seat and a locking seat sequentially sleeved on the rotating shaft, a blade being clamped between the support seat and the locking seat; a limit ring protruding in a direction surrounding the rotating shaft, at least two convex strips extending in an extending direction of the rotating shaft and protruding from a side wall of the rotating shaft, and at least two locking blocks protruding from the side wall of the rotating shaft at the end of the rotating shaft are sequentially provided from the middle section to the end of the rotating shaft, there are intervals between the limit ring and the convex strip, between the convex strip and the locking block, and the convex strip and the locking block are spaced apart. The positions of the locking blocks correspond, and the cross-sectional dimensions of the locking blocks are equal to or smaller than the cross-sectional dimensions of the convex strips; a groove cooperating with the convex strips is formed on the inner wall of the support seat; a clearance groove for the passage of the locking block is formed on the inner wall of the locking seat, and a locking groove cooperating with the locking block is formed on the end face of the locking seat away from the support seat, and there is a gap between the locking groove and the clearance groove; and the locking member also includes a locking member inserted between the support seat and the limiting ring, so that when the locking block is located in the locking groove, the limiting ring, the locking member, the support seat, the blade and the locking seat are abutted in sequence.

[0007] Compared with the prior art, the utility model has the following beneficial effects: the installation method of the blade is changed by changing the shape of the tool holder and the rotating shaft. It is only necessary to put the support seat, the blade, and the locking seat on the rotating shaft in sequence, rotate the locking seat to make the locking block on the rotating shaft fall into the locking groove on the locking seat, and then insert the locking piece to prevent it from falling out. It solves the technical problem that the traditional tool holder fixes the blade with several screws, and the disassembly and assembly is time-consuming and labor-intensive, making the blade disassembly and assembly quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a component disassembly diagram of an embodiment of the utility model.

[0009] In the above drawings: 1, rotating shaft; 11, limiting ring; 12, convex strip; 13, locking block; 2, supporting seat; 21, groove; 22, positioning column; 3, locking seat; 31, giving groove; 32, locking groove; 33, transition groove; 4, blade; 41, positioning hole; 5, locking piece; 6, spring; 7, cutting groove. DETAILED DESCRIPTION

[0010] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0011] like Figure 1 As shown, the embodiment of the utility model proposes a quick-release knife holder for a towel slitting machine, which is characterized in that it comprises: a rotating shaft 1 and a supporting seat 2 and a locking seat 3 which are sequentially sleeved on the rotating shaft 1, and a blade 4 is clamped between the supporting seat 2 and the locking seat 3; the rotating shaft 1 is sequentially provided with a limiting ring 11 protruding in the direction surrounding the rotating shaft 1, at least two convex strips 12 extending in the extending direction of the rotating shaft 1 and protruding from the side wall of the rotating shaft 1, and at least two locking blocks 13 protruding from the side wall of the rotating shaft 1 at the end of the rotating shaft 1, there is a gap between the limiting ring 11 and the convex strip 12, and between the convex strip 12 and the locking block 13, and the convex strip 12 and the locking block 13 are spaced apart. The position of the block 13 corresponds to that of the block 13, and the cross-sectional size of the locking block 13 is equal to or smaller than the cross-sectional size of the convex strip 12; the inner wall of the support seat 2 is provided with a groove 21 that cooperates with the convex strip 12; the inner wall of the locking seat 3 is provided with a clearance groove 31 for the locking block 13 to pass through, and the end surface of the locking seat 3 away from the support seat 2 is provided with a locking groove 32 that cooperates with the locking block 13, and there is a gap between the locking groove 32 and the clearance groove 31; it also includes a locking piece 5 inserted between the support seat 2 and the limiting ring 11, so that when the locking block 13 is located in the locking groove 32, the limiting ring 11, the locking piece 5, the support seat 2, the blade 4 and the locking seat 3 are abutted in sequence.

[0012] When in use, the support seat 2 is sleeved on the rotating shaft 1 so that the groove 21 and the convex strip 12 cooperate, and then the blade 4 and the locking seat 3 are sleeved on the rotating shaft 1 in sequence, so that the locking block 13 passes through the yield groove 31, and then the locking seat 3 is rotated so that the locking block 13 passes through the transition groove 33 until it enters the locking groove 32, and the locking piece 5 is inserted between the limit ring 11 and the support seat 2, so that the locking seat 3 and the support seat 2 clamp the blade 4, and the locking block 13 cannot fall out of the locking groove 32.

[0013] Preferably, a spring 6 is sleeved on the rotating shaft 1 between the limiting ring 11 and the supporting seat 2. The spring 6 can prevent the locking groove 32 and the locking block 13 from deviating after corresponding before the locking member 5 is inserted, thus playing a role of temporary positioning.

[0014] Preferably, the end surface of the locking seat 3 is provided with a sloped transition groove 33 from deep to shallow from the clearance groove 31 to the locking groove 32. The edges of the locking block 13 that contact the transition groove 33 are rounded, and the deepest edges of the transition groove 33 are rounded. The transition groove 33 and the rounded corners are to make the locking seat 3 rotate more smoothly.

[0015] Preferably, at least three positioning posts 22 are evenly distributed in the circumferential direction on the surface of the support seat 2 facing the locking seat 3, and the blade 4 is provided with positioning holes 41 corresponding to the positioning posts 22, and the height of the positioning posts 22 is less than the thickness of the blade 4. This design allows the blade 4 to rotate more stably and avoid slipping, and at the same time will not affect the rotation of the locking seat and the clamping of the blade by the support seat and the locking seat.

[0016] Preferably, the ends of the support seat 2 and the locking seat 3 are thick and thin in the middle, so as to guide the thread ends wound on the tool holder, so that the thread ball tends to be wound in a thinner part and is not easy to spread toward the motor.

[0017] Preferably, the side walls of the support seat 2 and the locking seat 3 are provided with at least one cutting groove 7. A portion of the thread ends can be cleaned by passing the cutting groove 7 with the blade 4 without disassembling the blade holder.

[0018] Preferably, the locking member 5 is sleeved on the outside of the spring 6, has an Ω-shaped cross section, and is elastic. The locking member 5 is made of elastic material and designed in an Ω shape to further ensure that it is not easy to fall out in the operating state, and does not require an additional fixing structure, further simplifying the disassembly and assembly of the tool holder.

[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A quick-release knife holder for a towel slitting machine, characterized in that: include: A rotating shaft and a supporting seat and a locking seat which are sequentially sleeved on the rotating shaft, wherein a blade is clamped between the supporting seat and the locking seat; a limiting ring which protrudes in the direction surrounding the rotating shaft, at least two convex strips which extend in the extending direction of the rotating shaft and protrude from the side wall of the rotating shaft, and at least two locking blocks which protrude from the side wall of the rotating shaft at the end of the rotating shaft are sequentially provided from the middle section to the end section of the rotating shaft, wherein there is a gap between the limiting ring and the convex strip, and between the convex strip and the locking block, the convex strip corresponds to the position of the locking block, and the locking block The cross-sectional size is equal to or smaller than the cross-sectional size of the convex strip; the inner wall of the support seat is provided with a groove that cooperates with the convex strip; the inner wall of the locking seat is provided with a clearance groove for the locking block to pass through, and the end surface of the locking seat away from the support seat is provided with a locking groove that cooperates with the locking block, and there is a gap between the locking groove and the clearance groove; it also includes a locking piece inserted between the support seat and the limiting ring, so that when the locking block is located in the locking groove, the limiting ring, the locking piece, the support seat, the blade and the locking seat are abutted in sequence.

2. A quick-release knife holder for a towel slitting machine as claimed in claim 1, characterized in that: A spring is sleeved on the rotating shaft between the limiting ring and the supporting seat.

3. A quick-release knife holder for a towel slitting machine as claimed in claim 2, characterized in that: The end surface of the locking seat is provided with a slope-shaped transition groove from deep to shallow from the giving way groove to the locking groove.

4. A quick-release knife holder for a towel slitting machine as claimed in claim 3, characterized in that: The edges of the locking block that contact the transition groove are rounded, and the edges at the deepest part of the transition groove are rounded.

5. The quick-release blade holder for a towel slitting machine according to claim 1, characterized in that: At least three positioning columns are evenly distributed in the circumferential direction on the surface of the support seat facing the locking seat, and positioning holes corresponding to the positioning columns are arranged on the blade, and the height of the positioning columns is less than the thickness of the blade.

6. The quick-release blade holder for a towel slitting machine according to claim 1, characterized in that: The supporting seat and the locking seat are thick at both ends and thin in the middle.

7. A quick-release knife holder for a towel slitting machine as claimed in claim 6, characterized in that: At least one cutting groove is formed on the side walls of the supporting seat and the locking seat.

8. The quick-release blade holder for a towel slitting machine according to claim 2, characterized in that: The locking piece is sleeved on the outside of the spring, has an Ω-shaped cross section, and is elastic.

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