CN2923268Y

CN2923268Y - Double-colour moulder rotary disc clutching-index locking device

Info

Publication number: CN2923268Y
Application number: CN 200620105505
Authority: CN
Inventors: 夏善海; 杜宁; 童哲王; 朱立志
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-07
Filing date: 2006-07-07
Publication date: 2007-07-18
Anticipated expiration: 2016-07-07

Abstract

The utility model relates to a locking device for turntable clutch indexing of a twin-color plastic jetting-moulding machine. The locking device consists of a turntable drive cylinder of and a turntable shaft component. The turntable drive cylinder is made up of a front cover and a rear cover with an oil entrance and an oil exit respectively. The turntable drive cylinder is integrally fixed on a moveable plate by a cylinder cover. A piston rod is formed by going through the front cover, the rear cover and a through hole in middle part of the cylinder cover. After being connected with a needle bearing and a check ring of the bearing and tightened by a fastener, the turntable shaft component is positioned a shaft cover of a blank cap of the bearing; both ends of the shaft cover are provided with sealing rings. A shaft of the turntable is arranged on the moveable plate by the shaft cover, and one end of the shaft of the turntable is fixed on the turntable. The turntable drive cylinder of the cylinder and the turntable shaft component are integrated by the piston rod and the shaft of the turntable. A clutch is arranged on the turntable and the moveable plate to enable the turntable to complete the transposition of a die cavity without contact and by rotation of 180 degrees in positive and reverse directions. Plastic injection begins after the turntable is clocked with the moveable plate, which prevents frictional resistance and abrasion arising when the turntable contacts with the head face of the moveable plate, assures precision when the mold is folded, improves product quality and avoids damaging mold with high precision. The utility model is convenient in use.

Description

The Two-color injection molding machine dial, graduated locking device

Technical field

The utility model relates to the major critical component on a kind of double coloured plastic injection machine, when the positive and negative 180 degree rotations of the rotating disk of mould particularly are installed is to throw off the moving contactless rotation of plate, rotating disk still is locked with moving plate after the injecting cavity position has been changed in rotation, carries out the Two-color injection molding machine dial, graduated locking device that double-shot moulding is used again.

Background technology

Patent No. CN01228679.6 " distinguishes the mould rotary disk of double coloured plastic injection machine ", patent No. CN200320108123.4 " the mould whirligig of clear double coloured plastic injection machine ", all be to utilize existing common injection machine, the material of two kinds of different colours is overlapped be arranged side by side articles injection-moulded by two, enter synchronously in the same mould of two different die cavities, just can make continuously and distinguish double-colored plastic products.

But during the work of above-mentioned double coloured plastic injection machine, the end face of rotating disk develops in moving plate rotation, can produce frictional force in the process of rotating disk rotation, and rotating disk turns round for a long time, and rotating disk contacts end face with moving plate two just have in various degree abrasion, thereby causes two covers injection member side by side behind rotating disk Rotate 180 °, can not fine centering, make double-colored Products Quality can not get guaranteeing, influenced the precision of closing up of mould simultaneously, fragile again high-precision mould causes great economic loss.

Summary of the invention

Technical problem to be solved in the utility model is: a kind of Two-color injection molding machine dial, graduated locking device is provided, avoid producing frictional force when making the rotating disk rotary work and between moving plate, both prolonged injection machine service life, guaranteed the precision that mould closes up again, and improved Products Quality, easy-maintaining, maintenance, easy to use.

The technical scheme in the invention for solving the above technical problem is: the Two-color injection molding machine dial, graduated locking device, comprise by rotating disk driving oil cylinder and turntable shaft assembly and constituting, described rotating disk drives oil cylinder by having into, the protecgulum of oil-out, bonnet connects into overall fixed on moving plate by cylinder sleeve, and piston rod passes protecgulum, cylinder sleeve, through hole in the middle of the bonnet constitutes, described turntable shaft assembly passes through needle bearing by turntable shaft, end ring, needle bearing screws with securing member, be installed in the axle sleeve stifle that two ends are connected with the band sealing ring, in the axle sleeve of bearing stifle, turntable shaft is installed on the moving plate by axle sleeve and an end is fixed on the rotating disk and constitutes, and rotating disk driving oil cylinder and turntable shaft assembly connect into integral body with piston rod and turntable shaft.

Compared with prior art, advantage of the present utility model is: increased arrangement of clutch on rotating disk and moving plate, before dial rotation changes the die cavity position, driving rotating disk with arrangement of clutch earlier moves forward, allow rotating disk break away from and move contacting of plate, after making contactless rotation 180 degree of rotating disk, again rotating disk and moving pulling are locked the back injection moulding, both avoided rotating disk to contact frictional resistance and the wearing and tearing that produce with moving plate end face, guaranteed the precision that mould closes up again, improved quality of item, also can not damage high-precision mould, easy to usely easily maintained again, keep in repair.

Description of drawings

Fig. 1, structural representation of the present utility model.

The right view of Fig. 2, Fig. 1.

The A-A view of Fig. 3, Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Have oil cylinder protecgulum 18, bonnet 20 into and out of hydraulic fluid port, connect into integral body by cylinder sleeve 19, with screw oil cylinder protecgulum 18 is fixed on the moving outer face of pulling 4 bridge plate center, and piston rod 17 passes the forward and backward lid 18,20 of oil cylinder, through hole in the middle of the cylinder sleeve 19 constitutes rotating disk and drives oil cylinder, also fixes one on the outer face of bonnet 20 near switch 21.

Axle sleeve 6 is screwed on moving plate 4 centre bores, turntable shaft 9 is successively by needle bearing 8, end ring 10, needle bearing 13 usefulness securing member locking nuts 11 screw, be immersed in and be full of grease, two ends have the axle sleeve stifle 14 of sealing ring, in the axle sleeve 6 of bearing stifle 7, turntable shaft 9 is installed on the termination of moving plate 4 centre bores by axle sleeve 6, the front end of turntable shaft 9 is screwed in the centre bore of rotating disk 5, constitute the turntable shaft assembly, the front end junction of piston rod 17 prevents the rotation of piston rod and turntable shaft in the tail end of turntable shaft assembly turntable axle 9 and the rotating disk driving oil cylinder with key 12 radial locations, and be rotary with two locking nuts 15 respectively, screw on its end face of 16 usefulness places corresponding sunk screw, with two locking nuts 15,16 connect into the whole rotating disk arrangement of clutch that constitutes.

On the same straight line of rotating disk 5 centers, centre bore is arranged respectively, both sides eject hole 22 and two locating holes 24, and the positional cylinder 25 of two band alignment pins 26 is arranged respectively on the rear surface upper/lower terminal of moving plate 4, and are corresponding with the locating hole 24 on the rotating disk 5.

Upper end, moving plate 4 rear surfaces is fixed with oil motor 1, gear 3 on the oil motor axle and 2 engagements of the arc-shaped rack on the rotating disk 5, and the outer surface upper and lower end of moving plate 4 respectively has one near switch 23.

During injection machine work, make the fuel feed hole oil-feed that drives on the oil cylinder bonnet 20 earlier, promote piston rod 17 by after move forward, and make the turntable shaft 9 that fuses with it also move axially a distance, at this moment driving the rotating disk 5 that fuses with it by turntable shaft 9 also moves forward, rotating disk 5 is broken away from and the contacting of 4 of moving plates, move forward not in effective range because of piston rod 17 tail ends simultaneously near switch 21, computer receives that signal sends instruction, oil motor 1 starts, the tooth bar 2 that drives on the rotating disks 5 with its engagement by the gear on it 3 rotates, thereby driving rotating disk 5 clockwise rotates when 180 spend, triggering on moving plate the right near switch 23, signal is passed to computer, oil motor 1 makes its deceleration, positional cylinder 25 is received the instruction oil-feed simultaneously, and release alignment pin 26 on it, rotating disk 5 is drawn back under the drive that drives oil cylinder and is pulled original position simultaneously, make rotating disk 5 press close to move plate 4, when rotating disk forwards 180 to when spending, alignment pin 26 just in time inserts in the locating hole 24 on the rotating disk locking rotating disk 5, two injection cylinders synchronously and has injected the alignment pin 26 of positional cylinder 25 and return from rotating disk synchronously to the monochromatic injection of the die cavity that ejects hole 22 correspondences (figure draws).Driving oil cylinder simultaneously makes turntable shaft 9 drive rotating disks 5 move forward again, disengaging contacts with moving plate, at this moment oil motor 1 starts again and drives rotating disk 5 and rotate counterclockwise near 180 degree, triggering of the moving plate left side near switch 23, signal passes to computer, positional cylinder 25 is received instruction and is released alignment pin 26, rotating disk 5 is drawn back under the drive that drives oil cylinder simultaneously, be pulled original position and paste translatory plate 4, when rotating disk forwards 180 to when spending, alignment pin 26 just in time inserts synchronously again in the locating hole 24 on the rotating disk and locks rotating disk, and two injection cylinders are synchronously to the die cavity double color injection that ejects hole 22 correspondences, but the intact back of double color injection demoulding just.In the entire work process, rotating disk 5 is being with the moving plate 4 of mould separating clockwise or after rotating counterclockwise 180 degree, under the effect that drives oil cylinder, set back again and moving plate develops, and after alignment pin under the effect of positional cylinder 25 26 is locked rotating disk synchronously, just carry out monochrome, double color injection, and whole process is sent instruction and is carried out automatically through computer control by near switch 21,23.

Claims

1, a kind of Two-color injection molding machine dial, graduated locking device, it is characterized in that comprising by rotating disk driving oil cylinder and turntable shaft assembly and constitute, described rotating disk drives oil cylinder by having into, the protecgulum of oil-out (18), bonnet (20) connects into overall fixed on moving plate (4) by cylinder sleeve (19), and piston rod (17) passes protecgulum (18), cylinder sleeve (19), through hole in the middle of the bonnet (20) constitutes, described turntable shaft assembly passes through needle bearing (8) by turntable shaft (9), end ring (10), needle bearing (13) screws with securing member, be installed in the axle sleeve stifle (14) that two ends are connected with the band sealing ring, in the axle sleeve (6) of bearing stifle (7), turntable shaft (9) is installed in by axle sleeve (6) that moving plate (4) is gone up and an end is fixed on the rotating disk (5) and constitutes, and rotating disk driving oil cylinder and turntable shaft assembly connect into integral body with piston rod (17) and turntable shaft (9).

2, Two-color injection molding machine dial, graduated locking device according to claim 1, it is characterized in that rotating disk drives oil cylinder, protecgulum (18) is screwed moving and pulls on the outer face at (4) bridge plate center, also fixes one on the outer face of bonnet (20) near switch (21).

3, Two-color injection molding machine dial, graduated locking device according to claim 1 is characterized in that axle sleeve (6) is screwed on moving plate (4) centre bore, and the front end of turntable shaft (9) is screwed in the centre bore of rotating disk (5).

4, Two-color injection molding machine dial, graduated locking device according to claim 1, it is characterized in that front end junction key (12) radial location of the tail end and the piston rod (17) of turntable shaft (9), and be rotary with two locking nuts (15), (16) respectively, place corresponding sunk screw with the screw on its end face, two locking nuts (15), (16) are connected into integral body.