CN202805680U

CN202805680U - Electric screw press

Info

Publication number: CN202805680U
Application number: CN 201220416708
Authority: CN
Inventors: 邹泽斌
Original assignee: LIAOYANG LIANFA MACHINERY MANUFACTURING Co Ltd
Current assignee: LIAOYANG LIANFA MACHINERY MANUFACTURING Co Ltd
Priority date: 2012-08-21
Filing date: 2012-08-21
Publication date: 2013-03-20
Anticipated expiration: 2022-08-21

Abstract

The utility model relates to an electric screw press suitable for processing refractory bricks or being used for forging and stamping. The electric screw press is an improvement on the basis of an existing friction screw press, an existing horizontal-vertical wheel friction driving mode is structurally eliminated, a fixing base with a circular inner cavity is welded to a cross beam of a machine frame, a screw rod is fixed through a pressure bearing and a guide bearing which are arranged in the fixing base, a belt pulley is fixed at the upper end of the screw rod, a nut connected to the lower end of the screw rod drives a slide block to move upwards and downwards, and an electric control system with a programmable logic controller (PLC) in an electric control box automatically controls a reluctance motor, a high-pressure oil pump, a brake cylinder, a cooling fan and a brick outlet cylinder to operate. According to the electric screw press, easily damaged parts are small in number, and the failure rate is low; the motor works in a batch type, and electricity can be saved by 50% when the refractory bricks are processed; personnel expenses are automatically controlled and saved, blowing precision is high, technological parameters of the bricks of the same batch are identical, and the rate of finished products is high; and safety is good, multiple brakes are achieved, and the fact that the slide block can brake at any positions is guaranteed.

Description

Electric screw press

Technical field the utility model relates to a kind of electric screw press that is fit to processing refractory brick or uses for forging, punching press.

Background technology has processing refractory brick or is used for the friction press of forging, punching press use, is to lean on motor to be with movable slider to move up and down in frame by flat wheel of vertical wheel friction, and the object on the support lower platform is hit.Because vertical wheel peace wheel rubs for a long time, accessory loss is large, fault rate is high, and the power consumption of motor long time continuous working is high, and Artificial Control operates, and attack precision is also poor.

Summary of the invention is for overcoming existing friction press above shortcomings in structure, reduce fault, saves energy, improve the attack precision of workpiece, minimizing personnel spending, the utility model will provide a kind of electric screw press, to satisfy the needs of processing refractory brick or forging and punch process.The technical solution of the utility model electric screw press is: improve on the basis at existing friction press, cancelled putting down in the prior art, the friction driving way of vertical wheel, directly the employing screw mandrel cooperates the kind of drive with movable slider with screw, employing is with the electric control system of PLC cyclelog, in its concrete structure: the frame that has comprised prior art, screw mandrel, motor, screw, slide block, slideway, and be welded with an inner chamber at the entablature of inverted U frame and be circular holder, in the chamber of holder, be provided with for fixedly pressure bearing and the guide bearing of screw mandrel, top at screw mandrel is fixed wtih belt pulley, middle part at screw mandrel is fixed with thrust bearing, arrange on the panel with touching the numerical control display screen on the next door of frame, switch, be provided with cooling blower in the case, electric operated control box with PLC cyclelog electric control system, in the fuel tank that frame one side is fixed, be provided with the high-pressure oil pump that communicates with thrust bearing and slideway by pipeline, on the entablature of frame, also be fixed with the brake cylinder of control belt pulley brake.

The utility model electric screw press is compared with the friction press of prior art: owing to changed existing friction driving way, consumable accessory reduces, failure rate is low, and maintenance cost reduces; Adopt switched reluctance machines, the motor service intermittent, power saving 50% particularly is used in the process of processing refractory brick, shuts down when material loading, brick output, cleaning mould, and the electric motor starting electric current is little, and starting torque is large, can not produce electrical network and impact; Adopt PLC procedure auto-control formed product, attack precision is high, and is consistent with batch brickwork skill parameter, guaranteed the consistent of the bulk density of brick and size, improved the qualification rate of product, also saved personnel's spending; Security is good, and multiple brake has guaranteed that slide block can brake at an arbitrary position.

Description of drawings Fig. 1, be the structural representation of the utility model electric screw press.Fig. 2, be the electric principle schematic of electric screw press.

The specific embodiment has further understanding for the structure to the utility model electric screw press, and details are as follows by reference to the accompanying drawings:

Referring to accompanying drawing 1,2, the structure of the utility model electric screw press has comprised the frame 1 of inverted U among the figure, inner chamber of solid welding is circular holder 2 on the entablature of frame 1, is provided with in the chamber of holder 2 for fixedly pressure bearing 3 and the guide bearing 4 of screw mandrel 5.The belt pulley 6 fixing at screw mandrel 5 tops is connected by the output shaft of V-belt with switched reluctance machines 7, is fixed with the thrust bearing 8 that prevents screw mandrel 5 bounce-backs in screw mandrel 5 middle parts.Screw 9 is bolted on slide block 10, and is threaded connection the lower end at screw mandrel 5.An electric operated control box 11 is set on the next door of frame 1, the panel of electric operated control box 11 is provided with and touches numerical control display screen 15, two buttons 18, be provided with the cooling blower 19 to electric operated control box 11 heat radiation in the case, with touch that numerical control display screen 15 is connected with PLC cyclelog 16 electric control systems.In the fuel tank 12 that frame 1 one sides are fixed, be provided with high-pressure oil pump 13, the connecting pipe of high-pressure oil pump 13 enters from the entablature punching of frame 1, fixing slideway 14 communicates with thrust bearing 8 with in frame 1 inboard, under the setting of PLC cyclelog 16, high-pressure oil pump 13 at regular time and quantity give thrust bearing 8 and slideway 14 oil jet lubrications.On the entablature of frame 1, also be fixed with the brake cylinder 17 for 6 brakes of control belt pulley.This electric screw press also will (being below the horizon among Fig. 1) be fixed a brick output cylinder 20 using when processing refractory brick below frame 1 base plate.With switched reluctance machines 7, high-pressure oil pump 13, touch in the circuit with PLC cyclelog 16 electric control systems that numerical control display screen 15, brake cylinder 17, button 18, cooling blower 19, brick output cylinder 20 be connected, also be provided with air switch QF, fastp-acting fuse FU, control transformer T, A.C. contactor KM and relay K A.

The operation principle of this machine is: plugged, the power supply electricity is by (seeing accompanying drawing 2) the air switch QF in the circuit, connect the start button SB of control transformer T in the button 18 by fastp-acting fuse FU, at the revolution that touches configuration switch reluctance motor 7 on the numerical control display screen 15, the cycle of workpiece, the automatic number of starts/time and the fuel delivery of high-pressure oil pump 13, press start button SB, A.C. contactor KM adhesive, the controller energising of switched reluctance machines 7, switched reluctance machines 7, high-pressure oil pump 13, brake cylinder 17, cooling blower 19 and simultaneously automatically startup work of brick output cylinder 20, according to the in advance setting on touch numerical control display screen 15, PLC cyclelog 16 gauge tap reluctance motors 7 are just done, reverse rotation, drive screw mandrel 5 by belt pulley 6, screw 9 is done along the screw thread of screw mandrel 5 with movable slider 10, lower reciprocating motion is when slide block 10 moves downward, the object that needs to impact on frame 1 base is hit; During stop botton SBR in pressing button 18; relay K A outage in the circuit; the controller of A.C. contactor KM cut-off switch reluctance motor 7; switched reluctance machines 7, high-pressure oil pump 13, brake cylinder 17, cooling blower 19, brick output cylinder 20 quit work, and the brake spring on the cylinder 17 that meanwhile brakes ejects and withstands on the belt pulley 6.

Claims

1. electric screw press, it includes frame (1), screw mandrel (5), motor (7), screw (9), slide block (10), slideway (14), it is characterized in that being welded with the holder (2) that an inner chamber is circle at the entablature of inverted U frame (1), in the chamber of holder (2), be provided with for fixedly pressure bearing (3) and the guide bearing (4) of screw mandrel (5), be fixed wtih belt pulley (6) at the top of screw mandrel (5), be fixed with thrust bearing (8) in the middle part of screw mandrel (5), arrange on the panel with touching numerical control display screen (15) on the next door of frame (1), two buttons (18), be provided with cooling blower (19) in the case, electric operated control box (11) with PLC cyclelog (16) electric control system, in the fuel tank (12) that frame (1) one side is fixed, be provided with by pipeline and the high-pressure oil pump (13) that thrust bearing (8) and slideway (14) communicate, on the entablature of frame (1), also be fixed with the brake cylinder (17) of control belt pulley (6) brake.

2. electric screw press according to claim 1 is characterized in that motor (7) is switched reluctance machines.

3. electric screw press according to claim 1 is characterized in that screw (9) and slide block (10) are fixed together, and are threaded connection the lower end in screw mandrel (5).

4. electric screw press according to claim 1 is characterized in that being fixed with brick output cylinder (20) in the floor below of frame (1).