CN201456410U

CN201456410U - Thermoplastic hydraulic press

Info

Publication number: CN201456410U
Application number: CN2009200969999U
Authority: CN
Inventors: 纪国群; 王金奎
Original assignee: TIANJIN TIANDUAN HYDRAULIC CO Ltd
Current assignee: TIANJIN TIANDUAN HYDRAULIC CO Ltd
Priority date: 2009-06-05
Filing date: 2009-06-05
Publication date: 2010-05-12
Anticipated expiration: 2019-06-05

Abstract

A thermoplastic hydraulic press comprises a hydraulic press frame which is formed by columns, a crossbeam and a workbench, wherein the lower ends of the columns are fixedly connected with the workbench, and the upper ends are fixedly connected with the crossbeam. The thermoplastic hydraulic press is characterized in that the hydraulic press further comprises a plunger cylinder, a sliding block, side plunger cylinders and a constant-pressure power source, and has the advantages that an actuator and the power of a motor of the equipment are optimized to the maximum, the motor power is made full use of, and energy is saved; the return stroke is quick at first and then slows down, so that the pattern can be drawn instantly after being pressed, the phenomenon that drag marks can be caused on the surface of a workpiece in the opening of the workpiece by change of mould temperature is avoided, and the product quality and the production efficiency are improved; the sliding block can stop at low speed, which prevents the collision of metals in an oil cylinder and the impact of liquids in the system; the connection rigidity of the machine is reinforced; the thermoplastic hydraulic press fully utilizes the characteristics of small size, large flow capacity and high pressure of a logical valve, forms a self-adaption process through the matching of the logical valve, and eliminates the sound of 'artillery' generated when the sliding block conducts fast return stroke from pressure maintaining; and noise is reduced and service life is prolonged.

Description

A kind of thermoplastics type's hydraulic press

(1) technical field:

The utility model relates to a kind of hydraulic press, especially a kind of thermoplastics type's hydraulic press.

(2) background technology:

Easily pull surface of the work because of mold temperature changes when opening when having the molding of thermoplastics type's hydraulic press now, influence product quality and production efficiency; And because cylinder rod chamber and rodless cavity area difference, can make the inaccessible unanimity of descending, opening speed, metal bump produces noise, reduces service life of equipment, increases manufacturing and use cost.

(3) utility model content:

The purpose of this utility model is to design a kind of thermoplastics type's hydraulic press, and it can solve the deficiencies in the prior art, avoids pulling surface of the work because of mold temperature changes when opening, and improves product quality and production efficiency prolongation equipment, die life.

The technical solution of the utility model: a kind of thermoplastics type's hydraulic press, comprise the hydraulic press framework that constitutes by column, crossbeam and workbench, said column lower end is connected with stationary table, fixedlying connected with crossbeam in the upper end, it is characterized in that it also comprises plunger case, crossbeam, slide block, lateral column plug cylinder, workbench and constant voltage power source; Wherein, plunger case is fastened on the crossbeam middle part according to its seam and locknut, and plunger case plunger lower end is blue in accordance with the law to be connected with the slide block upper surface middle part with bolt; Said lateral column plug cylinder lower end is according to its end flange and be bolted to both sides on the table top of workbench, and lateral column plug cylinder plunger upper end orchid and bolt in accordance with the law is connected with slide block lower surface both sides; The power intake of said plunger case and lateral column plug cylinder is connected the constant voltage power source respectively.

Above-mentioned said constant voltage power source comprises hydraulic manifold block, guide's unloader, overflow valve, low discharge high-pressure pump, oil filter I, big flow low-pressure pumps and oil filter II; The clutch end difference joint pin plug cylinder of said hydraulic manifold block and the power intake of lateral column plug cylinder; The input of said hydraulic manifold block connects guide's unloader; Said low discharge high-pressure pump input is connected with oil filter I, and output connects guide's unloader and overflow valve respectively; The output of said overflow valve connects fuel tank; Said big flow low-pressure pumps input is connected with oil filter II, and output connects guide's unloader; Said oil filter I is connected fuel tank respectively with oil filter II.

This equipment hydraulic system is controlled by electrical system.

The course of work of the present utility model: 1. plunger case drives slide block down; When 2. suppressing workpiece, big flow low-pressure pumps is through the off-load of guide's unloader; 3. the low discharge high-pressure pump provides pressure to hydraulic system, and unnecessary hydraulic oil is realized long-time (more than 24 hours) pressurize through the overflow valve oil sump tank; 4. it is up that the lateral column plug cylinder drags slide block, and its speed equates with descending; When 5. up, can execute same pressure, realize upwards drawing process.

Superiority of the present utility model: 1. equipment carries out largest optimization with actuator and power of motor, has given full play to the power of motor effect, saves the energy; When continuing pressurize, system has adopted the compensatory pressure function, and pressure precision is controlled at ± 0.5MPa; 2. because opening speed is first quick and back slow, molding rapidly after the compacting is avoided pulling surface of the work because of mold temperature changes when opening, and improves product quality and production efficiency; 3. slide block can stop in mode at a slow speed, has stopped the oil cylinder metal bump, the internal system fluid impact; 4. strengthen machine and connect rigidity; 5. make full use of that the logical valve volume is little, flow is big and the high feature of pressure, cooperate by it to form adaptive process, eliminated slide block and produced " big gun ring " by pressurize to quick return; 6. reduce noise, increase the service life.

(4) description of drawings:

Fig. 1 is the overall structure schematic diagram of the related a kind of thermoplastics type's hydraulic press of the utility model;

Fig. 2 is the structural representation of constant voltage power source in the related a kind of thermoplastics type's hydraulic press of the utility model.

Wherein, 1 is plunger case (1), and 2 is crossbeam, and 3 is slide block, and 4 is lateral column plug cylinder (2), 5 is workbench, and 6 is hydraulic manifold block, and 7 is guide's unloader, and 8 is overflow valve, 9 is the low discharge high-pressure pump, and 10 is oil filter I, and 11 is big flow low-pressure pumps, and 12 is oil filter II.

(5) specific embodiment:

Embodiment: a kind of thermoplastics type's hydraulic press (see figure 1), comprise the hydraulic press framework that constitutes by column, crossbeam 2 and workbench 5, said column lower end is fixedlyed connected with workbench 5, fixedlying connected with crossbeam 2 in the upper end, it is characterized in that it also comprises plunger case 1, crossbeam 2, slide block 3, lateral column plug cylinder 4, workbench 5 and constant voltage power source; Wherein, plunger case 1 is fastened on crossbeam 2 middle parts according to its seam and locknut, and plunger case 1 plunger lower end is blue in accordance with the law to be connected with slide block 3 upper surface middle part with bolt; Said lateral column plug cylinder 4 lower ends are according to its end flange and be bolted to both sides on the table top of workbench 5, and lateral column plug cylinder plunger upper end orchid and bolt in accordance with the law is connected with slide block 3 lower surface both sides; The power intake of said plunger case 1 and lateral column plug cylinder 4 is connected the constant voltage power source respectively.

Above-mentioned said constant voltage power source (see figure 2) comprises hydraulic manifold block 6, guide's unloader 7, overflow valve 8, low discharge high-pressure pump 9, oil filter I 10, big flow low-pressure pumps 11 and oil filter II 12; The clutch end difference joint pin plug cylinder 1 of said hydraulic manifold block 6 and the power intake of lateral column plug cylinder 4; The input of said hydraulic manifold block 6 connects guide's unloader 7; Said low discharge high-pressure pump 9 inputs are connected with oil filter I 10, and output connects guide's unloader 7 and overflow valve 8 respectively; The output of said overflow valve 8 connects fuel tank; Said big flow low-pressure pumps 11 inputs are connected with oil filter II 12, and output connects guide's unloader 7; Said oil filter I 10 is connected fuel tank respectively with oil filter II 12.

This equipment hydraulic system is controlled by electrical system.

Claims

1. thermoplastics type's hydraulic press, comprise the hydraulic press framework that constitutes by column, crossbeam and workbench, said column lower end is connected with stationary table, fixedlys connected with crossbeam in the upper end, it is characterized in that it also comprises plunger case, crossbeam, slide block, lateral column plug cylinder, workbench and constant voltage power source; Wherein, plunger case is fastened on the crossbeam middle part according to its seam and locknut, and plunger case plunger lower end is blue in accordance with the law to be connected with the slide block upper surface middle part with bolt; Said lateral column plug cylinder lower end is according to its end flange and be bolted to both sides on the table top of workbench, and lateral column plug cylinder plunger upper end orchid and bolt in accordance with the law is connected with slide block lower surface both sides; The power intake of said plunger case and lateral column plug cylinder is connected the constant voltage power source respectively.

2. according to the said a kind of thermoplastics type's hydraulic press of claim 1, it is characterized in that said constant voltage power source comprises hydraulic manifold block, guide's unloader, overflow valve, low discharge high-pressure pump, oil filter I, big flow low-pressure pumps and oil filter II; The clutch end difference joint pin plug cylinder of said hydraulic manifold block and the power intake of lateral column plug cylinder; The input of said hydraulic manifold block connects guide's unloader; Said low discharge high-pressure pump input is connected with oil filter I, and output connects guide's unloader and overflow valve respectively; The output of said overflow valve connects fuel tank; Said big flow low-pressure pumps input is connected with oil filter II, and output connects guide's unloader; Said oil filter I is connected fuel tank respectively with oil filter II.