CN2377052Y

CN2377052Y - Hydraulic paper cutter

Info

Publication number: CN2377052Y
Application number: CN 99227673
Authority: CN
Inventors: 尤宝康
Original assignee: PRINTING MACHINERY CO Ltd FANGZHENG GROUP WENZHOU CITY
Current assignee: PRINTING MACHINERY CO Ltd FANGZHENG GROUP WENZHOU CITY
Priority date: 1999-06-23
Filing date: 1999-06-23
Publication date: 2000-05-10
Anticipated expiration: 2009-06-23

Abstract

The utility model relates to a hydraulic paper cutting machine, which is composed of a machine body (11), a paper pressing mechanism, a paper cutting mechanism, a hydraulic pressure mechanism and a working bench (3), wherein, the hydraulic pressure mechanism comprises an oil cylinder (6), two-position four-way electromagnetic valve (19), a hydraulic pressure setting loop and an oil tank (14), and the hydraulic pressure setting loop is connected below the two-position four-way electromagnetic valve. The utility model is characterized in that the oil cylinder (6) is a two-speed oil cylinder (12), and the two-speed oil cylinder (12) and one two-position four-way valve (13) are combined into a whole unit; a pressure relay (20), the two-position four-way electromagnetic valve and the oil tank (14) are connected below the two-position four-way valve (13). The utility model has the advantages of simple structure, accelerated paper pressing speed, increased paper pressing pressure, increased paper pressing efficiency, and energy saving.

Description

A kind of hydraulic clamp cutter

The utility model relates to paper cutter, relates in particular to hydraulic clamp cutter.

Existing hydraulic clamp cutter is by fuselage, cut paper mechanism, hydraulic mechanism, paper-pressing mechanism, workbench is formed, hydraulic mechanism is by large tank, two-position four-way solenoid valve, the pressure setting loop, sequence valve, small oil tank, oil sump is formed, large tank one tunnel connects two-position four-way solenoid valve, connect the pressure setting loop under the two-position four-way solenoid valve, another road of large tank connects sequence valve, connect small oil tank under the sequence valve, two-position two-way solenoid valve, pressure oil arrives large tank by two-position four-way solenoid valve one tunnel and produces the platen action, another road arrives small oil tank by sequence valve and produces the cut paper action, its weak point is that platen speed is slow excessively, and hydraulic system pressure can not downcut paper when low.

The purpose of this utility model is to provide the hydraulic clamp cutter that a kind of designs simplification, platen speed up, platen pressure increases.

The utility model hydraulic clamp cutter, form by fuselage, paper-pressing mechanism, cut paper mechanism, hydraulic mechanism, workbench, hydraulic mechanism comprises oil cylinder, two-position four-way solenoid valve, hydraulic pressure setting loop, connect hydraulic pressure under the two-position four-way solenoid valve and set up the loop, oil cylinder is the double speed oil cylinder, double speed oil cylinder and a two-position four-way valve are combined as integral body, connect pressure switch, two-position four-way solenoid valve, oil sump under the two-position four-way valve.

The utility model advantage, double speed oil cylinder, designs simplification, platen speed up, platen pressure increases, thereby also improve platen efficient, the saving energy.

Below in conjunction with accompanying drawing the utility model is described in detail:

Accompanying drawing 1 is the utility model hydraulic clamp cutter structural representation.

Accompanying drawing 2 is the utility model hydraulic clamp cutter hydraulic mechanism schematic diagrames.

Accompanying drawing 3 is the utility model hydraulic clamp cutter double speed oil cylinder, two-position four-way valve integrative-structure schematic diagram.

Accompanying drawing 4 is the utility model hydraulic clamp cutter pressure switch structure charts.

As Fig. 1, shown in 2, the utility model hydraulic clamp cutter, by fuselage 11, paper-pressing mechanism, cut paper mechanism, hydraulic mechanism, workbench is formed, cut paper mechanism, paper-pressing mechanism is prior art, cut paper mechanism is by tool rest 10, blade 10, connecting rod 5,5 ', pull bar 8 ' composition, tool rest 10 ' by connecting rod 5,5 ' connect with fuselage, by pull bar 8 ' connection gear 4, blade 10 by screw be fixed on tool rest 10 ' on, paper-pressing mechanism is by paper-weight 9, pull bar 8, fork 7, the rise spring is formed, paper-weight 9 cylinder lever connecting rods 8, pull bar 8 connects fork 7, fork 7 connects oil cylinder 6, rise spring 1 connects with paper-weight 9 makes paper-weight 9 get back to original position.Hydraulic mechanism of the present utility model comprises oil cylinder 6, two-position four-way solenoid valve 19, hydraulic pressure is set up the loop, oil sump 14,19 times companies of two-position four-way solenoid valve hydraulic pressure is set up the loop, oil cylinder 6 is a double speed cylinder 12, double speed oil cylinder 12 and a two-position four-way valve 13 are combined as integral body, 13 times companies of two-position four-way valve pressure switch 20, two-position four-way solenoid valve 19, oil sump 14, hydraulic pressure is set up the loop by overflow valve 18, oil pump 16, motor 17, oil filter 15 is formed, connect two-position four-way solenoid valve 19 on the overflow valve 18, under connect oil sump 14, oil pump 16 connects two-position four-way solenoid valve 19 on also, connect motor 17 again, oil filter 15, oil filter 15 connects oil sump 14.

As shown in Figure 3, be combined into whole double speed oil cylinder 12, two-position four-way valve 13 is by piston 21, cylinder body 22, inner carrier 23, small valve core 25, big valve core 26, spring 27, bottom 28 is formed, cover piston 21 in the cylinder body 22, cover inner carrier 23 in the piston 21, inner carrier 23 lower end central movable device small valve cores 25,25 times even inner big valve cores 26 that are provided with spring 27 of small valve core, big valve core 26 heads are in bottom 28 centres, bottom 28 logical oil sumps 14, the inner carrier center is a blank pipe 24, blank pipe 24 is with the hollow part UNICOM of small valve core 25, small valve core 25 has a mouthful A, mouth B, mouth A is communicated with the blank pipe 24 of inner carrier 23, mouth B is communicated with piston 21 cavity of resorptions, big valve core 26 has mouthful C also to be communicated with piston 21 cavity of resorptions, the oil inlet P connected entrance A of pressure oil, 29 be inlet port as shown in Figure 4, existing pressure switch is by piston 36, cross bar 30, switch 31, set screw 32, valve body 33, spring base 34 compositions such as grade, valve body 33 has pressure oil inlet 35, for fear of producing misoperation because of compression shock, piston 36 diameter of the present utility model are 2-4 times of existing diameter, existing diameter is the 12-24 millimeter, and switch 31 is travel switches.

During the utility model work, pressure oil enters inner carrier 23 central hollow tube 24 from oil inlet P, piston 21 is risen, because piston 21 rises, piston 21 cavity of resorptions are vacuum state, and hydraulic oil through port C enters piston 21 cavity of resorptions, piston 21 rises rapidly, because of piston 21 connects paper-pressing mechanism, so paper-pressing mechanism arrives paper position rapidly, this moment, pressure oil was full of piston 21 inner chambers, oil pressure back-pressure small valve core 25, small valve core 25 moves down, and mouthful A overlaps a mouthful B, and oil inlet P is simultaneously to mouth A, mouth B advances pressure oil, make pressure oil enter inner carrier 21 central hollow tube 24 and piston 21 cavity of resorptions, paper is produced very big thrust, when thrust reaches a certain setting, push away before the piston 36 of hydraulic oil with pressure switch, make cross bar 30 touch switch 31, switch 31 instruction cut paper mechanisms 10 carry out the cut paper function.

Claims

1, a kind of hydraulic clamp cutter, form by fuselage (11), paper-pressing mechanism, cut paper mechanism, hydraulic mechanism, workbench (3), hydraulic mechanism comprises oil cylinder (6), two-position four-way solenoid valve (19), hydraulic pressure setting loop, oil sump (14), connect hydraulic pressure under the two-position four-way solenoid valve (19) and set up the loop, it is characterized in that: oil cylinder (6) is a double speed oil cylinder (12), double speed oil cylinder (12) is combined as integral body with a two-position four-way valve (13), connects pressure switch (20), two-position four-way solenoid valve (19), oil sump (14) under the two-position four-way valve (13).

2, by the described hydraulic clamp cutter of claim 1, it is characterized in that: be combined into whole double speed oil cylinder (12), two-position four-way valve (13) is by piston (21), cylinder body (22), inner carrier (23), small valve core (25), big valve core (26), spring (27), bottom (28) is formed, cover piston (21) in the cylinder body (22), cover inner carrier (23) in the piston (21), inner carrier (23) lower end central movable device small valve core (25), connect the big valve core (26) that inside is provided with spring (27) under the small valve core (25), big valve core (26) head is in bottom (28) centre, bottom (28) leads to oil sump (14), the inner carrier center is blank pipe (24), the hollow part UNICOM of the same small valve core of blank pipe (24) (25), small valve core (25) has a mouthful A, mouth B, mouth A is communicated with inner carrier (23) blank pipe (24), mouth B is communicated with piston (21) cavity of resorption, big valve core (26) has mouthful C also to be communicated with piston (21) cavity of resorption, the oil inlet P connected entrance A of pressure oil.

3, by the described hydraulic clamp cutter of claim 1, it is characterized in that: the valve core diameter of pressure switch is 2-4 times of existing valve core diameter, and switch (31) is a travel switch.