CN2685052Y

CN2685052Y - Double-servo energy-saving injection moulding machine

Info

Publication number: CN2685052Y
Application number: CN 200420020664
Authority: CN
Inventors: 杜宁; 舒行豪; 许国旗; 王洪刚
Original assignee: 夏善海
Priority date: 2004-03-05
Filing date: 2004-03-05
Publication date: 2005-03-16
Anticipated expiration: 2014-03-05

Abstract

The utility model provides a double-servo energy-saving injection moulding machine comprising an injecting station back plate fixed with a servo motor and a single-cylinder injection cylinder which is composed of an injection cylinder component matched with an injection piston. The injection cylinder and a machine barrel assembly with a screw rod are connected on an injection station front plate; both ends of the injection piston are connected respectively with the screw rod and the output shaft of the servo motor by a shaft coupling, and the rotational speed of the servo motor and the motor can be controlled and adjusted by a servo controller. The utility model can adjust the rotational speed of the motor to accomplish the stepless speed regulation according to different horse power requirements of each injection moulding link to attain reasonable output power, which can reduce greatly the energy consumption of the injection machine. By two suits of separate power source, the utility model can make a plurality of procedures proceed simultaneously and synchronously, which shortens the period of the production and improves the efficiency of the production; because the double-servo energy-saving injection moulding machine adopts the single-cylinder injection cylinder and the servo motor to drive the screw plasticizing structure directly, the injection machine has the advantages of simple structure, small volume, uniform stress and high precision injection.

Description

Double servo energy-conserving injection moulding machines

Technical field

The utility model relates to a kind of injection machine, particularly a kind ofly drives directly that plasticized screw carries out preformed and by the Double servo energy-conserving injection moulding machines that is used as power of motor of band servo controller with servomotor.

Background technology

The injection machine of existing all size adopts oil motor to drive preformed more, adopt hydraulic drive by Motor Drive constant displacement pump pressure oil output, finish each do action of injection machine, and carry out matched moulds, injection, preformed, cooling, die sinking successively, eject operation and finish a production cycle, so the production cycle is long, inefficiency.And used time of each procedure and power demand are all different, wherein the preformed time generally will account for the whole circulation 60-80% of cycle time, and injection is the link of power demand maximum, but only accounts for 2～8% of whole circulation cycle time, so the energy consumption of injection machine is big.

Patent No. 02278439.X " energy-saving injection machine that composition motor drives ", distribute different rated power output though provide a kind of according to injection moulding link different capacity demand, satisfy injection machine in process of production to the different needs of drive system power, thereby reach purpose of energy saving, but it still adopts the double injection cylinder structure, and need to increase a lot of driving gear set and a plurality of small machine, structure is simple not enough, volume is bigger, and noise is big, can not stepless speed regulation.

Summary of the invention

Technical problem to be solved in the utility model is: a kind of Double servo energy-conserving injection moulding machines is provided, it is long to have changed the traditional injection moulding machine production cycle, the drawback that production efficiency is low, production cycle can be shortened, improve the production efficiency of injection machine, can cut down the consumption of energy again, and simple in structure, volume is little, stressed evenly, can realize stepless speed regulation.

The technical scheme in the invention for solving the above technical problem is: Double servo energy-conserving injection moulding machines comprise by be fixed on the support by preceding; back link; small rod; thrust bearing will link into an integrated entity with the tailgate and two plates of die cylinder assembly and mode transfer assembly; and the power source that connects and composes by oil pump and oil cylinder of the clamping that connects and composes through pull bar and a plate and motor and have and penetrate the injecting mechanism that moves cylinder component and form; described injecting mechanism is by the plate behind the platform of penetrating that is fixed with servomotor; the injection cylinder that is combined with the injection cylinder assembly formation of injection ram is the single cylinder injection cylinder; all be connected and penetrate on the platform header board with the barrel assembly of band screw rod; the two ends of described injection ram respectively with screw rod be connected described servomotor with the output shaft of servomotor by shaft coupling; rotating speed of motor is controlled by servo controller; regulate.

Compared with prior art, advantage of the present utility model is: replace traditional oil motor by servomotor, and will overlap the power sources use as two of independence, mutually noninterfere by the servomotor and the motor of servo controller control, some operation can be carried out simultaneously synchronously, but as die sinking, preformed just when ejecting, but operate as composite move with regard to preformed in the time of injection, shorten the production cycle thereby reach, the purpose of enhancing productivity.

All control because of two power source motors in addition, can constantly regulate the control rotating speed of motor and realize stepless speed regulation, reach rational power output, thereby greatly reduce the energy consumption of injection machine again according to the different capacity demand of each injection moulding link by servo controller.Because of having adopted the structure by single cylinder injection cylinder and the direct drive screw plasticizing of servomotor, economized an oil cylinder again, made its structure simpler, volume is little, in light weight, stressed evenly, injection precision is high, energy consumption is low.

Description of drawings

Fig. 1 structural representation of the present utility model;

The structural representation of Fig. 2 injecting mechanism.

The specific embodiment

Embodiment is further described the utility model below in conjunction with accompanying drawing:

By front and rear connecting rods 7,5, small rod 6, thrust bearing 1 with two plates 8 be connected with die cylinder assembly 2 and the tailgate 4 of mode transfer assembly 3 links into an integrated entity; and two plates 8 and a plate 10 are connected into whole clamping with pull bar 9; be fixed on the termination of support 28; motor 27 is fastened under support 28 other ends with oil pump 26, and servomotor 22 is fixed on by support flange 21 and penetrates behind the platform on the plate 23.Motor 27, servomotor 22 are connected with servo controller, by its control and adjusting rotating speed (figure omits).

Have blind hole, neighboring to be embedded with seal 16 in the middle of one end of stairstepping injection ram 15, the aperture is located with the spline housing 17 that has been threaded.

End by bearings stairstepping shaft coupling 19 cooperates with spline housing 17, and is fixed in the blind hole of injection ram 15 ends, and the end in addition of shaft coupling 19 connects into integral body with servomotor output shaft 20.

Penetrate platform header board 14, penetrate behind the platform plate 23 and be connected and penetrate on the platform guide rod 24, and can move along penetrating platform guide rod 24, be fixed on the guide rod seat 25 and penetrate the platform guide rod, and guide rod seat 25 is fixed on the in addition termination of support 28, penetrates and move cylinder component 12 two ends and be separately fixed at and penetrate on platform header board 14, the plate 10.Injection ram 15 put into the band oilhole injection cylinder assembly 18 be mated, and with penetrate platform after plate 23 connect to form the single cylinder injection cylinder, be fixed in the through hole of penetrating platform header board 14 1 ends.Hopper component is fixed on penetrates platform header board 14 upper surfaces, and an end that is installed in the screw rod 13 in the barrel assembly 11 links into an integrated entity screw rod 13 and injection ram 15 by two semi-rings.

During use, mould is separately fixed on a plate 10 end face relative with two plates 8, connects electrical convertors and generators 27 and drive oil pumps 26 and rotate, make the die cylinder oil-feed, promote thrust bearing 1 and drive small rod 6, back link 5, front rod 7 motions, promote two plates 8 and carry out mould assembling action, close tight mould.And penetrating in the injecting mechanism moved cylinder component 12 whole injection member moved, thereby nozzle is contacted with mould, by 18 oil-feeds of injection cylinder assembly, promotion has injection ram 15 left and right the moving of screw rod 13 and finishes injection, after the injection, open mould, eject product by the oil cylinder fuel feeding again, meanwhile, carry out preformed by servomotor 22 drive injection rams 15 and screw rod 13 rotations, the several cycles operation is carried out simultaneously, produce composite move, reduce the production cycle thereby reach, the purpose of energy savings.The rotating speed and the power output of motor 27, servomotor 22 are all different during the difference operation, and this is all controlled to adjust by servo controller.

Claims

1; a kind of Double servo energy-conserving injection moulding machines; comprise by be fixed on the support (28) by preceding; back link (7); (5); small rod (6); thrust bearing (1) will link into an integrated entity with the tailgate (4) and two plates (8) of die cylinder assembly (2) and mode transfer assembly (3); and the power source that connects and composes by oil pump (26) and oil cylinder of the clamping that connects and composes through pull bar (9) and a plate (10) and motor (27) and have and penetrate the injecting mechanism that moves cylinder component (12) and form; it is characterized in that: described injecting mechanism is by the plate (23) behind the platform of penetrating that is fixed with servomotor (22); the injection cylinder that is combined with injection cylinder assembly (18) formation of injection ram (15) is the single cylinder injection cylinder; all be connected and penetrate on the platform header board (14) with the barrel assembly (11) of band screw rod (13); the two ends of described injection ram (15) respectively with screw rod (13) be connected described servomotor (22) by shaft coupling (19) with the output shaft (20) of servomotor (22); the rotating speed of motor (27) is controlled by servo controller; regulate.

2, injection machine according to claim 1 is characterized in that the end centre of stairstepping injection ram (15) has blind hole, neighboring to be embedded with seal (16), and the aperture is located with the spline housing that has been threaded (17).

3, injection machine according to claim 1, it is characterized in that cooperating with spline housing (17) by an end of bearings stairstepping shaft coupling (19), and be fixed in the blind hole of injection ram (15) end, the in addition end of shaft coupling (19) connects into integral body with servomotor output shaft (20), and servomotor (22) is fixed on by support flange (21) and penetrates behind the platform on the plate (23).

4, injection machine according to claim 1 is characterized in that the single cylinder injection cylinder is fixed in the through hole of penetrating platform header board (14) one ends, and with penetrate platform after plate (23) be connected.