Knife rest structure for thick foil shears

Abstract

The utility model relates to the technical field of shearing machines, in particular to a knife rest structure for thick foil shears, which comprises a first support and a cutting disc, a first cylinder and a second cylinder are arranged between the first support and the cutting disc, the fixed end of the first cylinder is arranged on the first support, and the telescopic end of the first cylinder is connected with the fixed end of the second cylinder. The telescopic end of the second air cylinder is rotationally connected with the cutting disc, the telescopic end of the first air cylinder moves in the first direction, and the telescopic end of the second air cylinder moves in the second direction. The edge cutting device can easily adjust the lower cutter overlapping amount and the cutter leaning backlash of the cutting disc, is easy to operate and convenient to use, and improves the edge cutting quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to shearing machine technical field, concretely relates to a knife rest structure for thick foil shearing. BACKGROUND

[0002] Thick foil shearing machine is the equipment that realizes big roll slitting into small roll in electronic aluminum foil finishing shearing process. Figure 3 As shown in the figure, it mainly includes upper cutter shaft 7 and lower cutter shaft 15, a plurality of parallel upper disc knives 4 are evenly arranged on the upper cutter shaft 7, a plurality of lower knives 10 are staggered on the lower cutter shaft 15, wherein the upper disc knife 4 is fixed on the upper cutter shaft 7 through the upper cutter seat 8, and the lower knife 10 is fixed on the lower cutter shaft 15 through the lower cutter pad 9, the clamping sleeve 11, the tightening sleeve 12, the round nut 13 and the round nut 14.

[0003] The existing disc knife fixing form of the above structure has the following problems:

[0004] I. The upper disc knife and the lower disc knife are closely attached, one upper knife cannot be replaced alone, even if the lower disc knife is not damaged, the upper disc knife and the lower disc knife also need to be disassembled at the same time, and the installation and adjustment time is long, about 20-30 minutes are needed for adjustment after replacing the upper knife each time, the production efficiency is reduced;

[0005] II. The concentricity of the upper cutter seat and the cutter shaft is low, the upper cutter surface is not perpendicular to the upper cutter shaft, the radial runout and axial runout of the slitting upper knife are large, the equipment running precision is poor, the shearing performance is unstable, the error reaches dozens of filaments to more than twenty filaments per meter, the thick foil shearing edge quality is unstable, and quality defects such as edge warping and lotus leaf edge are prone to occur;

[0006] III. Since the upper cutter shaft is a whole type through shaft, the installation mode of the parallel knives makes the left and right upper disc knives parallel to the material running direction, the contact area between the material and the side surface of the upper disc knife is large, the tool wear is caused, and the consumption is large, about hundreds of thousands of knives are consumed for each shearing machine per year.

[0007] Therefore, a thick foil shearing knife rest structure that is convenient to disassemble and position adjustable is needed. SUMMARY

[0008] The utility model discloses to solve the disc knife fixing structure installation adjustment of the existing thick foil shearing machine is not convenient, causes the equipment shearing performance to be unstable, precision is poor, and the problem of high product failure rate, provides a thick foil shearing knife rest structure, can easily adjust the lower knife overlap of disc knife and the side gap of the knife, simple operation, convenient to use, improves the edge quality.

[0009] In order to realize the above-mentioned purpose, the technical scheme of the utility model is:

[0010] The utility model provides a kind of thick foil cutting knife holder structure, including first support and disc cutter, first cylinder and second cylinder are arranged between the first support and disc cutter, the fixed end of first cylinder is arranged on first support, the telescopic end of first cylinder is connected the fixed end of second cylinder, the telescopic end of second cylinder is rotationally connected disc cutter, the telescopic end of first cylinder moves in first direction, the telescopic end of second cylinder moves in second direction.

[0011] Further, the knife holder structure is arranged on the shearing machine by guide rail sliding, the guide groove matched with guide rail is arranged on the first support. Knife holder structure can be moved along guide rail, facilitate the position of knife holder structure on shearing machine is adjusted.

[0012] Further, the first direction is vertical direction, and the second direction is horizontal direction. First cylinder realizes pneumatically lower knife function, and second cylinder realizes rely on knife function when shearing production.

[0013] Further, micro-adjusting assembly is arranged between the first cylinder and the second cylinder, the micro-adjusting assembly includes adjusting light pole arranged along the first direction, one end of the adjusting light pole is rotationally connected with the first cylinder body, the other end of the adjusting light pole is slidably arranged in the first piston, drives the first piston to rotate relative to the first cylinder body, the other end of the first piston extending from the first cylinder body is screw-connected with the second cylinder. Manual adjustment micro-adjusting assembly realizes the overlap of upper and lower knives.

[0014] Further, the top of the adjusting light pole is provided with a scale. For realizing the quantization of adjustment range.

[0015] Further, the fixed end of the second cylinder is provided with an upper knife shield, the upper knife shield partially shields the disc cutter, and the upper knife shield is provided with a lubricating felt slidably connected with the disc cutter. Upper knife shield is used for protecting disc cutter, and lubricating felt provides lubrication for disc cutter.

[0016] Further, guide assembly is arranged between the first cylinder and the second cylinder, the guide assembly includes guide column arranged along the first direction, one end of the guide column is slidably connected with the fixed end of the first cylinder, and the other end is fixedly connected with the fixed end of the second cylinder. Guide assembly is used to limit the movement direction of the telescopic end of first cylinder, to prevent deviation.

[0017] Further, precision inclined gasket with gradually changing cross-sectional thickness is arranged between the first support and the first cylinder. The precision inclined gasket is used to adjust the inverted eight-shaped shearing angle of disc cutter and incoming material running direction, to reduce the wear of cutting tool by sheared material.

[0018] Further, the electromagnetic valve is arranged on the air inlet hose of the first cylinder and the second cylinder.

[0019] By the technical scheme, the utility model has the advantages that:

[0020] The utility model changes the fixed form of disc cutter, uses the tool rest structure to fix single disc cutter, the first cylinder can adjust the lower knife position of disc cutter, the second cylinder adjusts the knife position of disc cutter, avoids the waste of manpower and energy of traditional setting double knives simultaneously dismounting.

[0021] The utility model changes the fluctuation and inconsistency defect of each operation hand to the lower knife action of disc cutter and the fluctuation and inconsistency defect of overlap adjustment in the past design, realizes the lower knife, overlap standard adjustment operation, greatly increases the stability and consistency of shearing quality, improves customer satisfaction rate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structural schematic diagram of the utility model;

[0023] Figure 2 It is the sectional view along Figure 1 A-A line;

[0024] Figure 3 It is the structural schematic diagram of the existing thick foil shear whole shaft type upper and lower knife device.

[0025] The reference numerals in the drawings are: 1 is first support, 11 is guide groove, 12 is inclined washer, 13 is compression screw, 2 is first cylinder, 21 is first cylinder body, 22 is first piston, 23 is air inlet hose, 24 is return spring, 25 is cylinder bottom gland, 26 is piston seal, 27 is piston guide ring, 3 is second cylinder, 31 is second cylinder body, 32 is second piston, 4 is disc cutter, 41 is upper knife shield, 42 is lubricating felt, 43 is bearing, 44 is bearing seat, 5 is fine adjustment assembly, 51 is adjustment light pole, 52 is second support, 53 is rotating key, 54 is pre-tightening nut, 61 is guide column, 62 is guide shaft sleeve, 7 is upper knife shaft, 8 is upper knife seat, 9 is lower knife pad, 10 is lower knife, 11 is clamping sleeve, 12 is tightening sleeve, 13 and 14 are round nuts, 15 is lower knife shaft. DETAILED DESCRIPTION

[0026] The utility model will be further described in connection with the drawings and specific embodiments:

[0027] As Figures 1-2 Indicated, the embodiment provides a tool rest structure for thick foil shear, including first support 1, first cylinder 2, second cylinder 3 and disc cutter 4, the embodiment shown is upper disc cutter.

[0028] A first cylinder 2 and a second cylinder 3 are arranged between the first support 1 and the disc cutter 4. The fixed end of the first cylinder 2 is set on the first support 1, which is used to connect the shearing machine. The telescopic end of the first cylinder 2 is connected to the fixed end of the second cylinder 3. The first cylinder 2 drives the disc cutter 4 to move in the vertical direction to realize the pneumatic cutting function. The telescopic end of the second cylinder 3 is rotatably connected to the disc cutter 4. The second cylinder 3 drives the disc cutter 4 to move in the horizontal direction to realize the pneumatic cutting function. The telescopic end of the first cylinder 2 moves in a first direction, and the telescopic end of the second cylinder 3 moves in a second direction. The first direction is the vertical direction, and the second direction is the horizontal direction.

[0029] like Figure 2 As shown, the first support 1 is located on one side of the first cylinder 21. The blade holder structure is slidably mounted on the shearing machine via a guide rail. The first support 1 is provided with a guide groove 11 that matches the guide rail. The guide groove 11 is a dovetail-shaped guide groove. A clamping screw 13 is provided between the guide groove 11 and the guide rail, which allows the entire blade holder to achieve precise lateral movement and positioning through the guide groove 11 and by adjusting the clamping screw 13.

[0030] A shearing angle adjustment assembly is provided between the first support 1 and the first cylinder 21. The shearing angle adjustment assembly includes a precision inclined shim 12 with a gradually changing cross-sectional thickness along the guide rail direction. The inclined shim 12 is provided between the first support 1 and the first cylinder 2. The inclined shim 12 is an existing mature spare part. Different angles of inclined shims can be selected according to the thickness and material of the incoming product, so that the disc cutter 4 and the incoming material running direction form an inverted V-shaped shearing angle, reducing the wear of the shearing material on the cutter.

[0031] like Figure 1 As shown, the first cylinder 2 includes a first cylinder body 21, a first piston 22, an air inlet hose 23 and connector, a return spring 24, and a cylinder bottom cover 25. Compressed gas enters the first cylinder body 21 through the air inlet hose 23. After the piston chamber is filled with gas, the first piston 22 falls, driving the disc cutter 4 to move downward, realizing the pneumatic cutting function. After stopping, the piston chamber is depressurized, and the return spring 24 lifts the first piston 22 to realize the return function of the disc cutter 4. In this embodiment, the first piston 22 is rotatably disposed inside the piston chamber. A piston seal 26 and a piston guide ring 27 are provided between the first piston 22 and the inner wall of the first cylinder body 21. The bottom of the first piston 22 has threads. As one possible implementation, the bottom of the first piston 22 is connected to a lead screw.

[0032] The pneumatic principle of the second cylinder 3 is basically the same as that of the first cylinder 2, and similar structures of the second cylinder 3 will not be described herein. The second cylinder 3 comprises a second cylinder body 31 and a second piston 32. In the embodiment, the fixed end of the second cylinder 3 is the second cylinder body 31, and the telescopic end of the second cylinder 3 is the second piston 32. The second piston 32 only telescopes in the piston cavity without rotating. The end of the second piston 32 is connected with a bearing 43 and a bearing seat 44 to connect a disc cutter 4. The bearing 43 is a two-stage precision radial deep groove ball bearing. The disc cutter 4 is fixed on the bearing seat 44 through precise positioning and fastening screws. The other side of the disc cutter 4 away from the second cylinder 3 is connected with a driving device to drive the disc cutter 4 to rotate and realize high-speed rotary shearing of the disc cutter 4.

[0033] As an implementable manner, an electromagnetic valve is arranged on the air inlet hose of the first cylinder 2 and the second cylinder 3. When the electromagnetic valve is powered on, the cylinder piston cavity is inflated, the disc cutter 4 is pneumatically extended and closely contacted; when the electromagnetic valve is powered off, the cylinder piston cavity is deflated, the spring resets the piston rod, and the disc cutter 4 is lifted and reset.

[0034] In order to realize the fine adjustment of the disc cutter 4, a fine adjustment assembly 5 is arranged between the first cylinder 2 and the second cylinder 3. The fine adjustment assembly 5 comprises an adjusting light rod 51 arranged in a first direction and a second support 52 fixedly arranged on the top of the first cylinder body 21. One end of the adjusting light rod 51 is rotationally connected with the first cylinder body 21, and the other end of the adjusting light rod 5 is slidingly arranged in the first piston 22 to drive the first piston 22 to rotate relative to the first cylinder body 21. The other end of the first piston 22 extending out of the first cylinder body 21 is threadedly connected with the second cylinder 3.

[0035] Specifically, the second support 52 is connected with the first cylinder body 21 through fastening bolts. The adjusting light rod 51 is rotationally arranged at the center of the second support 52. A bidirectional thrust bearing is arranged between the adjusting light rod 51 and the second support 52. The adjusting light rod 51 is connected with the first piston 22 through a rotating key 53 by penetrating the side wall of the second support 52 and the first cylinder body 21. A light rod shaft seal is arranged between the adjusting light rod 51 and the side wall of the first cylinder body 21. The top of the adjusting light rod 51 is provided with a scale. When the adjusting light rod 51 rotates relative to the first cylinder 2, the end face arrow can be compared with the precise scale to realize the quantification of the adjustment range. The fine adjustment range is 0-5mm.

[0036] As shown in Figure 1 The upper end surface of the second cylinder body 31 is provided with a pre-tightening nut 54 matched with the first piston 22 and an adjusting hole. Through the action of the thrust bearing and the rotating key, the hand-operated fine adjustment assembly can drive the first piston 22 to rotate by manually rotating the adjusting light rod 51, so as to adjust the lifting of the pre-tightening nut 54 and realize the fine adjustment of the overlapping amount of the upper and lower knives.

[0037] The second cylinder 3 is provided with an upper blade guard 41 on its fixed end. The upper blade guard 41 partially covers the disc blade 4 and is used to protect the disc blade 4. The upper blade guard 41 is provided with a lubricating felt 42 that is slidably connected to the disc blade 4. The lubricating felt 42 is made of wool or synthetic fibers through needle punching or bonding processes to form a porous structure that can absorb and store lubricant.

[0038] like Figure 2 As shown, a guide assembly is provided between the first cylinder 2 and the second cylinder 3. The guide assembly is used to limit the movement direction of the extension and retraction end of the first cylinder 2 and prevent deviation. The guide assembly includes a guide post 61 arranged along a first direction and a guide sleeve 62 disposed inside the first cylinder body 21. One end of the guide post 61 is slidably connected to the fixed end of the first cylinder 2, and the other end is fixedly connected to the fixed end of the second cylinder 3. Specifically, the guide post 61 and the guide sleeve 62 are matched, with one end of the guide post 61 slidably disposed inside the guide sleeve 62 and the other end fixed on the second cylinder body 31.

[0039] The working principle of this utility model:

[0040] In use, the entire tool holder structure moves and is positioned laterally via the guide groove 11 and the clamping screw 13. After the tool holder structure is positioned, the first cylinder 2 is activated, the first piston 22 extends, and drives the second cylinder 3 and the disc cutter 4 to move downward, realizing the pneumatic cutting function; the second cylinder 3 is activated, the second piston 32 extends, and drives the disc cutter 4 to move to one side, realizing the pneumatic cutting function; the distance between the first cylinder 2 and the second cylinder 3 is adjusted by manually rotating the first piston 22 or adjusting the guide rod 51, so as to fine-tune the overlap of the upper and lower cutters.

[0041] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A knife holder structure for a thick foil cutting shear comprising a first support (1) and a disc knife (4), characterized in that, The first support (1) and the disc cutter (4) are provided with a first cylinder (2) and a second cylinder (3), the fixed end of the first cylinder (2) is arranged on the first support (1), the telescopic end of the first cylinder (2) is connected with the fixed end of the second cylinder (3), the telescopic end of the second cylinder (3) is rotatably connected with the disc cutter (4), the telescopic end of the first cylinder (2) moves in a first direction, and the telescopic end of the second cylinder (3) moves in a second direction.

2. A knife holder structure for a thick foil scissors according to claim 1, wherein The cutter holder structure is arranged on the shearing machine through sliding of a guide rail, and the first support (1) is provided with a guide groove (11) matched with the guide rail.

3. A knife holder structure for a thick foil scissors according to claim 1, wherein The first direction is a vertical direction, and the second direction is a horizontal direction.

4. A holder structure for a thick foil cutting knife according to claim 1, wherein A fine adjustment assembly (5) is arranged between the first cylinder (2) and the second cylinder (3), the fine adjustment assembly (5) comprises an adjusting light rod (51) arranged in the first direction, one end of the adjusting light rod (51) is rotatably connected with a first cylinder body (21), the other end of the adjusting light rod (51) is slidably arranged in a first piston (22) and drives the first piston (22) to rotate relative to the first cylinder body (21), and the other end of the first piston (22) extending out of the first cylinder body (21) is threadedly connected with the second cylinder (3).

5. A holder structure for a thick foil cutting knife according to claim 4, wherein A scale is arranged on the adjusting light rod (51).

6. A holder structure for a thick foil cutting knife according to claim 1, wherein The fixed end of the second cylinder (3) is provided with an upper cutter guard (41), the upper cutter guard (41) partially shields the disc cutter (4), and the upper cutter guard (41) is provided with lubricating felt (42) slidably connected with the disc cutter (4).

7. A holder structure for a thick foil cutting knife according to claim 1, wherein A guide assembly is arranged between the first cylinder (2) and the second cylinder (3), the guide assembly comprises a guide column (61) arranged in the first direction, one end of the guide column (61) is slidably connected with the fixed end of the first cylinder (2), and the other end of the guide column (61) is fixedly connected with the fixed end of the second cylinder (3).

8. A holder structure for a thick foil cutting knife according to claim 1, wherein A precision inclined gasket (12) with gradually changed cross-sectional thickness is arranged between the first support (1) and the first cylinder (2).

9. A holder structure for a thick foil cutting knife according to claim 1, wherein An electromagnetic valve is arranged on the air inlet hose of the first cylinder (2) and the second cylinder (3).

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