CN2432149Y - Covering film ring-cutting device - Google Patents

Abstract

The utility model relates to a covering film ring cutting device, which has the action that a work piece of circular thin plate class can be cut by the utility model in rolling and ring cutting mode after the surface of the work piece is coated and stuck to a layer of protective plastic film, and peripheral surplus material of which diameter is larger than the diameter of the work piece is cut off and separated. The utility model comprises a compacting air cylinder, a compression spring, a machine frame, a driven gear, a driving gear, a rotary air cylinder, a flat key, a rotating shaft, a platen, a thrust bearing, a ring cutting hobbing cutter, a hexagonal nut, a rotary cutter bar, etc. The utility model is characterized in that the cutter body of the ring cutting hobbing cutter adopt the structure of 30 DEG included angle swinging compression, and the cutter body can radially move along the rotary cutter bar with a guiding groove; thus, the cutting radius can be regulated. The rotary cutter bar adopts the mode that the rotary cutter bar executes the operation in a pneumatic mode by a gear transmission. The utility model has the advantages of simple structure, and convenient operation and adjustment.

Description

The Covering film ring-cutting device

A kind of Covering film ring-cutting device belongs to the machine cuts technical field, and it is applicable to uses it with rolling ring butt formula to some garden shape film class workpiece after its coating treatment surface is covered sticking one deck protection plastic sheeting again, the peripheral clout cutting and separating greater than diameter of work.

The mode that realizes at present the surplus film cutting and separating in workpiece overlay film protection back has two kinds: 1, carry out the hand cutting separation with the edge of work of common paper knife behind the overlay film; because adopt the manual mode of operation, so labor strength is big, production efficiency is low; cutting quality also and lacks safety control.2, with having the electrothermic die of ring knife mouth (its cutting edge diameter is corresponding with workpiece), the workpiece of overlay film is pressurizeed (1～2 second) in short-term, utilize the cutting edge temperature thermal conductance plastic sheeting that fuses.Though this mode can realize that mechanism operates automatically, owing to have form and position tolerance and mould-manufacturing precision factor between workpiece planarization and the mould, it is not thorough through regular meeting fusing to take place, and fracture has the phenomenon of adhesion.Defectives such as in addition, the workpiece of different-diameter need be equipped with the mould of different size, causes the equipment cost height, changes and uses inconvenience, and energy consumption is big.

The purpose of this utility model is at above-mentioned drawback, provides a kind of simple in structure, the overlay film automatic ring cutting device of superior performance.This device can overcome above-mentioned shortcoming, can finish the ring cutting action quickly and easily automatically, satisfies the technical standard requirement of ring cutting.

The purpose of this utility model is to realize in the following manner: this Covering film ring-cutting device comprises main parts in addition such as clamping cylinder 1, compression spring 2, frame 3, ring gear 4, driving gear 5, rotary cylinder 6, flat key 7, rotating shaft 8, platen 9, thrust baring 10, ring cutting hobboing cutter 11, hexagonal nut 12, revolution knife bar 13.It is characterized in that ring cutting hobboing cutter cutter hub is divided into upper knife body and lower knife body two parts, wear company's two cutter hubs by bearing pin and form 30 ° of oscillating type structures of its angle.Upper and lower cutter hub all has groove, the swing compression spring is connected in the groove of upper and lower cutter hub, the lower knife body upper grooves is equipped with trimming screw, adjust spring pressure, the lower knife body end also has groove roll blade and cutterhead is housed, and cutterhead and roll blade are press-fitted riveted and are integral, the built-in antifriction-bearing box of cutterhead, be attached in the terminal groove of lower knife body by bearing pin, bearing pin is installed with spring cotter.The ring cutting hobboing cutter is to be contained on the guide groove of revolution knife bar, is fixed by hexagonal nut.The rotating shaft that is contained on the frame has the keyway arrangements of joining with the flat key cunning, and its length is greater than the compression cylinder stroke.The revolution knife bar is contained in the rotating shaft, the rotating shaft lower end is equipped with platen and thrust baring, compression spring is equipped with in rotating shaft upper end, and rotating shaft is 4: 3 driving gear and ring gear transmission by one group of over-speed gear ratio, makes rotating shaft make 360 °+5 ° horizontally rotating together with the revolution knife bar by the flat key transfer torque.Then by driving with the rotary cylinder that is contained in frame, rotary cylinder adopts the microphyll chip to driving gear, and its shaft extension can be done 270 °+4 ° rotations, and the shaft extension cross-under cooperates transfer torque at the driving gear center with key.Clamping cylinder is contained in the frame top and is descended by the rotating shaft that it promotes on the frame, makes the platen workpiece pressing that is installed in the rotating shaft lower end, and the ring cutting hobboing cutter also is compressed 5-8 centimetre simultaneously, under the supporting that promotes bearing, finishes the ring cutting action in one week.

Advantage of the present utility model: 1, the side cut of overlay film workpiece is neatly smooth, and fracture is continuous, the free of discontinuities adhesion phenomenon.2, the ring cutting hobboing cutter can be along knife bar adjusting travel radially, to adapt to the workpiece of different-diameter specification.3, ring cutting hobboing cutter cutting edge is sharp, adjustable in pressure, and the performance of floating is good.4, the ring cutting linear velocity can reach 1600 mm/second.5, adopt pneumatic apparatus, be convenient to the automatic control program action.6, simple in structure, cost is low, adjusts easy to use.

Fig. 1 is the application in the utility model non-stick pan aluminium sheet blank teflon coating manufacturing line overlay film protection production procedure.

Fig. 2 is the utility model overall construction drawing.

Fig. 3 is the utility model ring cutting hobboing cutter block construction figure.

Below in conjunction with drawings and Examples the utility model is elaborated.Fig. 1 represents the work flow of the follow-up overlay film protection of non-stick pan aluminium sheet blank teflon coating manufacturing line.Coated processing but the not work 5 of overlay film protection as yet; on the travel line 1 of step run, cover stickingly through 2 roll extrusion of PE self-adhesive plastic film, become the workpiece of having been protected by overlay film 6; knife-equipped cut-out cylinder 3; press straight path 7 and cut off the PE film, make it to separate, then at ring cutting workpiece 8 with adjacent overlay film workpiece; by Covering film ring-cutting device 4; the surplus film of the PE of workpiece periphery is encircled separation (shade is partly represented the surplus film of PE among the figure), and workpiece 9 has been removed surplus film, enters packaging process with conveyer.Fig. 2 represents the utility model overall construction drawing.Ring cutting hobboing cutter 11 is installed in and can does on the revolution knife bar 13 of radially adjustment along guide groove, fixing by hexagonal nut 12, rotary cylinder 6, adopt the microphyll chip, its shaft extension can be done 270 °+4 ° rotations, by one group of over-speed gear ratio is the transmission of 4: 3 driving gear 5 and ring gear 4, makes rotating shaft 8 make 360 °+5 ° horizontally rotating together with the revolution knife bar by flat key 7 transfer torques.Frame 3 is installed in the conveyer relevant position, and compression cylinder 1 promotes rotating shaft and descends, and makes platen 9 workpiece pressings, and the ring cutting hobboing cutter also is compressed the 5-8 millimeter simultaneously, under the supporting of thrust baring 10, finishes the ring cutting action in one week.Compression spring 2 resets the rotating shaft rising, and platen and ring cutting hobboing cutter also set back with its rising.The utility model is undertaken by follow procedure action: the overlay film workpiece enters ring cutting station → platen and the ring cutting hobboing cutter descends simultaneously and workpiece pressing → ring cutting hobboing cutter is rotated in the forward a week, and the PE film is cut off → and platen and ring cutting hobboing cutter rise simultaneously and leave the reverse sky of workpiece ring cutting hobboing cutter and circle and reset.Fig. 3 represents the utility model ring cutting hobboing cutter block construction figure.It is 30 ° of oscillating type structure of the cutter body that upper knife body 1 and lower knife body 3 are formed its angle by bearing pin 4 companies of wearing, spring cotter 5 prevents that bearing pin from deviating from, swing compression spring 2 is adjusted cutting pressure and is compressed the stroke that floats by screw 9, roll blade 11 adopts the finished high speed steel cutter blade transformation of the way of corresponding size, its oad is φ 30 * 0.8,20 ° of cutting edge cutting nose angles, cutterhead 10 is press-fitted the riveted one with roll blade 11, built-in antifriction-bearing box 6, be attached in the lower knife body groove with bearing pin 7, choose the H8/97 free-running fit, guarantee roll blade neither pine rotate again flexibly, spring cotter 8 is through and prevents in the bearing pin 7 that bearing pin from deviating from.

Claims (5)

1, a kind of Covering film ring-cutting device, comprise clamping cylinder, compression spring, frame, ring gear, driving gear, rotary cylinder, flat key, rotating shaft, platen, thrust baring, the ring cutting hobboing cutter, hexagonal nut, revolution knife bar etc., it is characterized in that ring cutting hobboing cutter cutter hub is divided into upper knife body and lower knife body, wear the oscillating type structure that company's two cutter hubs are formed 30 ° of its angles by bearing pin, on, lower knife body all has groove, the swing compression spring is connected, in the groove of lower knife body, the lower knife body upper grooves is equipped with trimming screw, the lower knife body end also has groove roll blade and cutterhead is housed, cutterhead and roll blade are press-fitted riveted and are integral, the built-in antifriction-bearing box of cutterhead, be attached in the terminal groove of lower knife body by bearing pin, bearing pin is installed with spring cotter.

2, ring cutting device according to claim 1 is characterized in that turning round knife bar and has guide groove.

3, ring cutting device according to claim 1 is characterized in that the ring cutting hobboing cutter is installed on the guide groove of revolution knife bar, is fixed by hexagonal nut.

4, ring cutting device according to claim 1 is characterized in that the keyway of joining with the flat key cunning is arranged in the rotating shaft, and its length is greater than the compression cylinder stroke.

5, ring cutting device according to claim 1 is characterized in that adopting rotary cylinder to connect and drives driving gear and ring gear, and ring gear connects rotating shaft, and the flat key transfer torque is housed between them.

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