Cutter locking device of slitting machine

Abstract

The utility model discloses a slitting machine cutter locking device which comprises a cutter shaft for installing a cutter and a locking mechanism arranged on the outer side of the cutter shaft, the locking mechanism is used for abutting against the cutter, and a shaft sleeve arranged on the outer side of the cutter shaft in a sleeving mode is arranged between the locking mechanism and the cutter; a main shaft capable of moving in the axis direction of the cutter shaft is arranged in the cutter shaft, and the main shaft is connected with the locking mechanism and used for driving the locking mechanism to move along the cutter shaft. A guide structure is arranged at one end of the cutter shaft, the locking mechanism is arranged on the outer side of the guide structure in a sleeving mode, and the guide structure is used for containing the locking mechanism and can guide the locking mechanism to be opened or closed to correspondingly abut against or loosen the cutter. The main shaft can automatically drive the locking mechanism to outwards open and lock the cutter along the guide structure or inwards fold, loosen the cutter and retract into the guide structure, the locking mechanism is prevented from interfering with cutter replacement, the working intensity can be reduced, the cutter is prevented from moving, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of slitting machines, in particular to a slitting machine cutter locking device. BACKGROUND

[0002] A slitting machine is a device for cutting metal strips into several strips of required specifications, comprising upper and lower cutter rollers, the cutter rollers being provided with corresponding cutter tools, the distance between the cutter tools being adjustable according to different widths of the plate material. After being unwound, the plate material enters between the upper and lower cutter rollers and is cut into strips by the cutter tools on the upper and lower cutter rollers. During cutting, the position of the cutter tools on the cutter rollers will be offset. The existing technology generally adopts a round nut for locking (such as the slitting machine with the patent number 201921326001.X). It is difficult for an operator to accurately determine the locking state, which may result in insufficient or excessive locking, and the locking force cannot be guaranteed. During work, the cutter tools are prone to loosening, which causes burrs on the side edges of the plate material after cutting, affecting the product quality. CONTENT OF THE UTILITY MODEL

[0003] The application provides a slitting machine cutter locking device to solve the above-mentioned problems in the prior art, and adopts the following technical scheme:

[0004] The slitting machine cutter locking device comprises a cutter shaft on which cutter tools are mounted, and a locking mechanism arranged outside the cutter shaft, the locking mechanism being used for pressing the cutter tools;

[0005] The cutter shaft is internally provided with a main shaft capable of moving along the axial direction of the cutter shaft, the main shaft being connected with the locking mechanism and used for driving the locking mechanism to move along the cutter shaft;

[0006] One end of the cutter shaft is provided with a guide structure, the locking mechanism being sleeved outside the guide structure, the guide structure being used for accommodating the locking mechanism and guiding the locking mechanism to open or fold, and correspondingly pressing or loosening the cutter tools.

[0007] Preferably, the guide structure comprises an annular accommodation groove for placing the locking mechanism, and a guide part being formed between one side of the annular accommodation groove and the cutter shaft.

[0008] Preferably, the locking mechanism comprises a movable sleeve, and opening and closing parts and a push plate arranged at two ends of the movable sleeve, the push plate being connected with the main shaft, and a shaft sleeve being arranged between the locking mechanism and the cutter tools and sleeved outside the cutter shaft.

[0009] Further preferably, the opening and closing parts comprise a plurality of clamping blocks circumferentially distributed at one end of the movable sleeve, and a separation block being arranged between adjacent clamping blocks, the separation block being connected with the movable sleeve, and the clamping blocks being rotationally connected with adjacent separation blocks.

[0010] Further preferably, the clamping block is provided with a clamping groove at one end away from the movable sleeve, and the bottom of the clamping block is provided with an arc-shaped sliding groove matched with the guide structure.

[0011] Further preferably, the clamping groove comprises a clamping side wall and a supporting bottom wall, the supporting bottom wall is coaxial with the outer wall of the shaft sleeve, and the clamping side wall abuts against the shaft sleeve for locking the cutter.

[0012] Preferably, the main shaft comprises a driving part and a driving shaft, the driving part is located on the shaft at one end away from the locking mechanism, and the driving part is in transmission connection with the driving shaft.

[0013] Further preferably, the driving part is a rotary oil cylinder.

[0014] Preferably, the main shaft is provided with a locking part, and the locking part abuts against the push plate.

[0015] The beneficial effects of the present application compared with the prior art are:

[0016] The present application drives the locking mechanism to move along the guide structure by the main shaft, and the locking mechanism opens outward or folds inward along the guide part, so as to quickly lock or loosen the cutter. The cutter is locked stably and reliably, and the cutter is prevented from moving or deviating on the shaft, thereby improving product quality and reducing work intensity.

[0017] Secondly, when the cutter is replaced, the locking mechanism of the present application can be retracted into the guide structure, thereby avoiding interference between the locking mechanism and the cutter. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the present application;

[0019] Figure 2 is a sectional view of the present application;

[0020] Figure 3 is a structure schematic view of the locking mechanism when loosened at B of the present application;

[0021] Figure 4 is a structure schematic view of the locking mechanism when locked at B of the present application.

[0022] In the drawings:

[0023] 1, cutter shaft, 2, main shaft, 21, driving shaft, 22, driving part, 3, locking mechanism, 31, movable sleeve, 32, opening and closing part, 321, partition block, 322, clamping block, 323, sliding groove, 324, clamping groove, 33, push plate, 4, annular receiving groove, 5, guide part, 6, locking part. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described in this application are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] See Figures 1 to 4 Further explanation of this application:

[0026] The slitting machine cutter locking device includes a cutter shaft 1, on which a plurality of cutters (not shown in the figure) are sleeved, and a locking mechanism 3 sleeved on the outside of the cutter shaft 1. The locking mechanism 3 is used to press the cutters together. A bushing (not shown) is provided between the cutter and the locking mechanism 3. The bushing is sleeved on the outside of the cutter shaft 1, and the bushing facilitates the locking mechanism 3 to press the cutters together.

[0027] Combination Figure 2 The cutter shaft 1 has a hollow structure, and a main shaft 2 that can move along the x-axis is provided inside the cutter shaft 1. The main shaft 2 is connected to the locking mechanism 3 and is used to drive the locking mechanism 3 to move along the axis (x-axis) of the cutter shaft 1. The main shaft 2 includes a driving component 22 and a driving shaft 21. The driving component 22 is located on the side of the cutter shaft 1 away from the end where the locking mechanism 3 is located, and the driving component 22 is connected to the driving shaft 21. The driving component 22 is a rotary cylinder. The main shaft 2 is threadedly connected to the cutter shaft 1. The rotary cylinder drives the main shaft 2 to rotate, thereby realizing movement along the x-axis, which has higher precision.

[0028] The cutter shaft 1 is provided with a guide structure, which is located at the end where the locking mechanism 3 is located. Figure 1 (The middle part is the right end). The locking mechanism 3 is sleeved on the outside of the guide structure. The guide structure is used to house the locking mechanism 3 and can guide the locking mechanism 3 to open or close, correspondingly tightening or loosening the tool. It can realize the quick locking or loosening of the tool, and the tool is locked firmly and reliably, ensuring that the tool will not move or shift on the tool shaft, which can improve product quality.

[0029] like Figure 3In the embodiment, the guide structure comprises an annular receiving groove 4 for placing the locking mechanism 3, and a guide part 5 is formed between one side of the annular receiving groove 4 and the cutter shaft 1, which is in a slope shape for guiding the locking mechanism 3 to open. When the tool needs to be replaced, the locking mechanism 3 can be retracted into the annular receiving groove 4, without affecting the replacement of the tool. When the tool needs to be locked, the locking mechanism 3 can be opened along the guide part 5 in the radial direction of the cutter shaft 1 to the outside, and the shaft sleeve can be pushed out of the annular receiving groove 4 to push the tool, so as to lock the tool.

[0030] In combination Figure 1 , the locking mechanism 3 comprises a movable sleeve 31, an opening and closing part 32 and a push plate 33 arranged at both ends of the movable sleeve 31 respectively, and the opening and closing part 32 is located close to the driving part 22. The push plate 33 is connected with the main shaft 2, and the main shaft 2 is provided with a locking part 6 abutting against the push plate 33. The locking part 6 is a locking nut, and the position of the locking mechanism 3 in the guide structure can be adjusted through the locking part 6, so as to facilitate the overall disassembly and installation. The opening and closing part 32 comprises a plurality of clamping blocks 322 arranged at one end of the movable sleeve 31 in a circumferential direction, and the clamping blocks 322 are used for synchronously opening and clamping the shaft sleeve, so that the shaft sleeve can be uniformly stressed to clamp the cutter shaft 1. A partition block 321 is arranged between adjacent clamping blocks 322, and the partition block 321 is connected with the movable sleeve 31. The clamping block 322 is rotationally connected with the adjacent two partition blocks 321, and the partition block 321 is used for supporting the rotation of the clamping block 322.

[0031] In combination Figure 3 , one end of the clamping block 322 away from the movable sleeve 31 is provided with a clamping groove 324 for placing the shaft sleeve. The bottom of the clamping block 322 is provided with an arc-shaped sliding groove 323 matched with the guide structure, and the sliding groove 323 can slide along the guide part 5. The clamping groove 324 comprises a clamping side wall and a supporting bottom wall. The supporting bottom wall is coaxial with the outer wall of the cutter shaft, and when the cutter shaft is locked, the supporting bottom wall abuts against the inner wall of the shaft sleeve coaxial with the outer wall of the cutter shaft 1, and the clamping side wall abuts against the shaft sleeve to push the shaft sleeve to press the tool.

[0032] In combination Figure 3 and Figure 4The locking principle of the application is described as follows: during operation, the driving part 22 drives the driving shaft 21 to move to the left side with the locking mechanism 3, the clamping blocks 322 are respectively opened and extended to the outside of the annular receiving groove 4 along the guide part 5, the clamping groove 324 on the end of the clamping block 322 is in butt joint with the shaft sleeve, and the shaft sleeve is pushed to lock the tool; during tool changing, the driving part 22 drives the driving shaft 21 to move to the right side with the locking mechanism 3, the locking mechanism 3 releases the shaft sleeve, and the locking mechanism 3 is retracted into the annular receiving groove 4, so that interference with the tool during tool changing is avoided.

Claims

1. A sliver knife locking device for a sliver divider, characterized in that: The tool shaft comprises a tool installed thereon, and a locking mechanism arranged outside the tool shaft and used for pressing the tool; The tool shaft is provided with a spindle capable of moving along the axial direction of the tool shaft, and the spindle is connected with the locking mechanism and used for driving the locking mechanism to move along the tool shaft; One end of the tool shaft is provided with a guide structure, and the locking mechanism is arranged outside the guide structure, the guide structure is used for accommodating the locking mechanism and guiding the locking mechanism to open or close, and the tool is pressed or released correspondingly.

2. The slitter-knife locking device of claim 1, wherein: The guide structure comprises an annular accommodation groove used for placing the locking mechanism, and a guide part is formed between one side of the annular accommodation groove and the tool shaft.

3. The slitter-knife locking device of claim 1, wherein: The locking mechanism comprises a movable sleeve, opening and closing parts and a push plate arranged at two ends of the movable sleeve, the push plate is connected with the spindle, a shaft sleeve is arranged between the locking mechanism and the tool, and the shaft sleeve is arranged outside the tool shaft.

4. The sliver knife locking device according to claim 3, characterized in that: The opening and closing parts comprise a plurality of clamping blocks distributed circumferentially at one end of the movable sleeve, and a separation block is arranged between adjacent clamping blocks, the separation block is connected with the movable sleeve, and the clamping blocks are rotationally connected with adjacent separation blocks.

5. The sliver knife locking device according to claim 4, wherein: One end of the clamping block away from the movable sleeve is provided with a clamping groove, and the bottom of the clamping block is provided with an arc-shaped sliding groove matched with the guide structure.

6. The sliver knife locking device according to claim 5, wherein: The clamping groove comprises a pressing side wall and a supporting bottom wall, the supporting bottom wall is coaxial with the outer wall of the tool shaft, and the pressing side wall abuts against the shaft sleeve and is used for locking the tool.

7. The slitter-knife locking device of claim 1, wherein: The spindle comprises a driving part and a driving shaft, the driving part is located on the tool shaft away from the locking mechanism, and the driving part is transmissionally connected with the driving shaft.

8. The sliver knife locking device according to claim 7, characterized in that: The driving part is a rotary oil cylinder.

9. The slitter-knife locking device of claim 3, wherein: The spindle is provided with a locking part abutting against the push plate.

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