CN100443213C

CN100443213C - High speed oil pressure die-cutting apparatus

Info

Publication number: CN100443213C
Application number: CNB2006101240741A
Authority: CN
Inventors: 张建能; 张冠华
Original assignee: NANHAI HUAJIE HARDWARE PRODUCT CO Ltd FOSHAN
Current assignee: Foshan Nanhai Kai Yi Hardware Products Co., Ltd.
Priority date: 2006-12-07
Filing date: 2006-12-07
Publication date: 2008-12-17
Anticipated expiration: 2026-12-07
Also published as: CN1974050A

Abstract

The present invention discloses one kind of high speed oil pressure die-cutting apparatus, and aims at providing die-cutting apparatus with simple structure, low cost, reliable running and high cutting speed. The high speed oil pressure die-cutting apparatus includes one die-cutting oil cylinder and one pressurizing oil cylinder with oil cavities on two sides of the piston communicated with those in the die-cutting oil cylinder separately through pipelines, overflow branches and oil replenishing branches in the pipelines, overflow valves in the overflow branches, oil replenishing tank communicated with the oil replenishing branches, non-return valves in the oil replenishing branches, and one electrically driven reciprocator interlinked with the piston rod of the pressurizing oil cylinder. The present invention is used in production line of continuous die-cutting.

Description

High speed oil pressure die-cutting apparatus

Technical field

The present invention relates to oil pressure die-cutting apparatus, refer in particular to a kind of high speed oil pressure die-cutting apparatus of the continuous die-cutting that is used for online production.

Background technology

At present, in the roll-forming equipment of Hardware fitting, generally all use and do not shut down on-line continuous and thrust mechanism and come blanking,,, adopt high-voltage oil cylinder usually as the power that thrusts in order to alleviate the volume and weight of moving component because the mechanical type cutter sweep is comparatively heavy; When adopting the high-voltage oil cylinder conduct to thrust power, directly determine speed of production the blanking time of thrusting, and shorten and thrust blanking time, raising speed of production, can only improve the movement velocity of oil cylinder; And the work of traditional oil cylinder realizes by oil pump and directional control valve, improve the movement velocity of oil cylinder, just needs to increase fuel delivery, promptly increases the power of oil pump; With regard to present technical merit, the oil pump of big flow is no problem, but with the matching used big flow of big flow oil pump, high pressure, the directional control valve of (operating frequency is greater than 60 times/minute) really can not be realized at a high speed, this becomes restriction and improves the technical bottleneck that oil cylinder thrusts frequency, also cause the speed of production of former not improve, become the technical barrier that the handware processing industry need solve at present.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of simple in structure, low cost of manufacture, reliable, the high speed oil pressure die-cutting apparatus that can improve the speed of thrusting.

Technical scheme of the present invention is: a kind of high speed oil pressure die-cutting apparatus, comprise and thrust oil cylinder, the wherein said oil pocket that thrusts the oil cylinder piston both sides passes through pipeline connection respectively with the corresponding oil pocket on pressurization oil cylinder piston both sides, on two connecting pipelines between the oil pocket that thrusts oil cylinder and pressurization oil cylinder, be connected with spill pipe and repairing arm respectively, on spill pipe, be connected with overflow valve, the repairing arm is communicated with additional fuel tank, is connected with on the repairing arm by additional fuel tank to the check valve of pipeline folk prescription to conducting; The piston rod of described pressurization oil cylinder and the interlock of electric reciprocating drive unit.

Thrust described in above-mentioned a kind of high speed oil pressure die-cutting apparatus oil cylinder and the pressurization oil cylinder oil pocket between two connecting pipelines partly be arranged in the cooling water tank.

The described electric reciprocating drive unit of above-mentioned a kind of high speed oil pressure die-cutting apparatus can adopt and comprise motor, flywheel with the motor output shaft interlock, bent axle with the flywheel interlock is connected the clutch between flywheel and the bent axle, and described bent axle links with the piston rod of pressurization oil cylinder.

After the present invention adopts said structure, utilize the electric reciprocating driving mechanism to drive the pressurization oil cylinder to thrusting the oil cylinder fuel feeding, make the pressurization oil cylinder and thrust oil cylinder and form the closed fluid circulatory system, and solve the Volume Changes that the fluid thermal expansion forms by overflow valve, come makeup oil liquid cooling but back volume contraction and oil liquid leakage by check valve, under the situation of not using oil pump and directional control valve, having solved at one stroke prior art is difficult to improve and thrusts the technical barrier that oil cylinder thrusts speed, and the present invention compared with prior art, structure is simpler, it is more reliable to work, cost is cheaper, thrust thrusting frequency and can bringing up to 120 times/minute of oil cylinder, improved production efficiency exponentially.

Description of drawings

Below in conjunction with the embodiment in the accompanying drawing the present invention is described in further detail, but does not constitute any limitation of the invention.

Fig. 1 is the structural representation of a kind of specific embodiment of the present invention;

Fig. 2 is one of operation principle schematic diagram of the present invention;

Fig. 3 is two of an operation principle schematic diagram of the present invention.

Among the figure: 1-thrusts oil cylinder, 2-pressurization oil cylinder, 3,4-pipeline, 3a, 4a-lengths of steel pipes, 3b, 4b-high-pressure rubber pipe section, 5-spill pipe, 6-electric reciprocating drive unit, 61-motor, 62-flywheel, 63-bent axle, 64-clutch, 7-overflow valve, the additional fuel tank of 8-, 9-check valve, 10-repairing arm, 11-cooling water tank, 12-oil sump tank, the spacing contact of 13-fixed length, 14-thrust mode, 15-cylinder, 16-linear bearing.

The specific embodiment

Consult Fig. 1, shown in Figure 2, high speed oil pressure die-cutting apparatus of the present invention, comprise and thrust oil cylinder 1, the oil pocket that thrusts oil cylinder 1 piston top is communicated with by pipeline 3 with the oil pocket on pressurization oil cylinder 2 pistons the right, the oil pocket that thrusts oil cylinder 1 piston bottom is communicated with by pipeline 4 with the oil pocket on pressurization oil cylinder 2 pistons the right, two connecting pipelines 3 between the oil pocket that thrusts oil cylinder 1 and pressurization oil cylinder 2, be connected with spill pipe 5 and repairing arm 10 on 4 respectively, on spill pipe 5, be connected with overflow valve 7, overflow valve 7 is by the maximum pressure setting of operation, in time thermal expansion fluid is let out to oil sump tank 12 by overflow valve 7, guaranteed the safe operation of system; Repairing arm 10 is communicated with additional fuel tank 8, on repairing arm 10, be connected with by additional fuel tank 8 to the check valve 9 of

pipeline

3,4 folk prescriptions to conducting, leakage by check valve 9 comes replenishment system inner fluid cooling back volume contraction and system's fluid realizes the automatic compensation of system's fluid; Connecting

pipeline

3,4 all adopts lengths of

steel pipes

3a, 4a and high-pressure

rubber pipe section

3b, 4b serial connection to form, for reducing the system oil liquid temp, the service life of seal in the prolongation system, lengths of

steel pipes

3a, 4a in two connecting

pipelines

3,4 that thrust between the oil pocket of oil cylinder 1 and pressurization oil cylinder 2 are arranged in the cooling water tank 11, to reach the purpose that reduces oil liquid temperature; The piston rod of

pressurization oil cylinder

2 and 6 interlocks of electric reciprocating drive unit, electric reciprocating drive unit 6 in the present embodiment adopts punch press of the prior art to constitute, and with the horizontal installation of punch press, it mainly comprises motor 61, flywheel 62 with the interlock of motor 61 output shafts, bent axle 63 with flywheel 62 interlocks is connected the clutch 64 between flywheel 62 and the bent axle 63, by the piston rod interlock of bent axle 63 with pressurization oil cylinder 2; Adopt the punch press of conventional art, can utilize the accumulation of energy effect of flywheel 62, reduce energy resource consumption.

In the above embodiment of the present invention, electric reciprocating drive unit 6 as 12 tons of common punch presses of employing change original motor into 3 kilowatts by 1.1 kilowatts, can thrust the power that thrusts that oil cylinder 1 obtains 18 tons, thrust frequency and can reach 120 times/minute; Under square one, if adopt hydraulic pump,,, also need to dispose 55 kilowatts motor even in the problem of not considering directional control valve for satisfying about 40 liters/minute fluid flow, how a lot of the energy that obviously expends is.

Electric reciprocating drive unit 6 among the present invention also can adopt and variously in the prior art circular motion of motor can be transferred to straight-line other device, as gear, rack gear arrangement, and eccentric wheel, linkage etc., its technique effect is suitable.

When the present invention specifically uses, consult Fig. 1, shown in Figure 2, the section bar of moulding triggers the spacing contact 13 of fixed length, clutch 64 closures, the piston rod that bent axle 63 promotes pressurization oil cylinder 2 moves right, the fluid in the right chamber of pressurization oil cylinder 2 pistons injects the piston upper oil chamber that thrusts oil cylinder 1 by pipeline 3, thrusts oil cylinder 1 descending promotion thrust mode 14 section bar is cut off; When clutch 64 was closed, thrust oil cylinder 1 and thrust mode 14 etc. that cylinder 15 will be installed on the linear bearing 16 were followed section bar and are moved; When bent axle 63 turns over bottom dead centre, consult shown in Figure 3, the piston rod of pulling pressurization oil cylinder 2 is moved to the left, the fluid of pressurization oil cylinder 2 piston left side oil pockets injects the piston bottom oil pocket that thrusts oil cylinder 1 by pipeline 4, and thrust mode 14 is up, goes to top dead-centre until bent axle 63, clutch 64 separates, pressurization oil cylinder 2, thrust oil cylinder 1 and quit work, cylinder will be installed in and thrust oil cylinder 1 and the thrust mode 14 contour positions of replying immediately on the linear bearing 16 simultaneously, finish and once thrust stroke.

Claims

1. high speed oil pressure die-cutting apparatus, comprise and thrust oil cylinder (1), it is characterized in that the described oil pocket that thrusts oil cylinder (1) piston both sides passes through pipeline (3 respectively with the corresponding oil pocket on pressurization oil cylinder (2) piston both sides, 4) be communicated with, two connecting pipelines (3 between the oil pocket that thrusts oil cylinder (1) and pressurization oil cylinder (2), 4) be connected with spill pipe (5) and repairing arm (10) on respectively, on spill pipe (5), be connected with overflow valve (7), repairing arm (10) is communicated with additional fuel tank (8), is connected with by additional fuel tank (8) on repairing arm (10) to pipeline (3,4) folk prescription is to the check valve (9) of conducting; The piston rod of described pressurization oil cylinder (2) and electric reciprocating drive unit (6) interlock.

2. a kind of high speed oil pressure die-cutting apparatus according to claim 1 is characterized in that two connecting pipelines (3, the 4) part between the described oil pocket that thrusts oil cylinder (1) and pressurization oil cylinder (2) is arranged in the cooling water tank (11).

3. a kind of high speed oil pressure die-cutting apparatus according to claim 1, it is characterized in that described electric reciprocating drive unit (6) comprises motor (61), flywheel (62) with the interlock of motor (61) output shaft, bent axle (63) with flywheel (62) interlock, be connected the clutch (64) between flywheel (62) and the bent axle (63), described bent axle (63) links with the piston rod of pressurization oil cylinder (2).