CN2243976Y

CN2243976Y - Two side hydraulic forming machine

Info

Publication number: CN2243976Y
Application number: CN 95217831
Authority: CN
Inventors: 李虎元; 李海平
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-01
Filing date: 1995-08-01
Publication date: 1997-01-01
Anticipated expiration: 2005-08-01

Abstract

The utility model relates to a hydraulic molding device which is especially suitable for the pressure molding of bulk materials and comprises a hydraulic ram and a frame, wherein at least one concave mould is fixed to the frame, and both ends of the concave moulds are provided with two convex moulds which are matched with the concave moulds and can make synchronously relative movement along cavities of the concave moulds. The utility model adopts a double-face pressure molding mode to cause molded products to have the advantages of uniform structure, compact structure and big intensity, and is not easy to damage.

Description

Two-sided hydraulic forming machine

The utility model relates to a kind of hydraulic forming device, is particularly suitable for bulk material is carried out pressure forming.

In the prior art, bulk material pressed make the mode of its moulding varied, comparatively advanced is to adopt the shaped by fluid pressure technology, and such as making aspects such as clay brick, refractory material, industrial ceramics and industrial residue utilization, the shaped by fluid pressure technology has obtained comparatively general application.But common shaped by fluid pressure equipment, just material is exerted pressure from single face, typical in Chinese patent 942247337 disclosed a kind of " hydraulic forming machine ", this machine comprises frame, hydraulic jack and a pattern chamber, the pattern body that pattern plate AB constitutes, its mid frame is made up of pillar, top board, base plate.Hydraulic jack is fixed on the top board, and the pattern chamber is fixed between top board and the base plate, during work, by placing the hydraulic jack on the top board that the material in the pattern chamber between top, base plate is exerted pressure, makes its moulding from top to bottom.Adopt this mode of exerting pressure, the material unbalance stress at two ends in the pattern chamber, movement degree is also inequality, with the contacted end of the template of exerting pressure, material moves with template, and material particles is also adjusted each other position and contact angle gradually in motion process, thereby, compact and uniform structure behind the material forming here, intensity is big, corner angle are not fragile, and the material of pattern chamber another side, because of initial stressed less, relative motion between the material particles, it is also little to adjust angle, make that the structure of molded blank is more loose relatively, intensity is also little, and especially the corner angle limit is very easily damaged, cause percent defective to increase, shorten service life.

The purpose of this utility model is in order to overcome above-mentioned deficiency, to provide a kind of material uniform-compression, raising of molded blank intensity simultaneously that makes two ends, pattern chamber, even structure densification, the comparatively simple two-sided shaped by fluid pressure equipment of high efficiency, structure.

The utility model comprises hydraulic jack, frame, is fixed with a die on frame at least, has two to be complementary and can be along the relative punch that is synchronized with the movement of this matrix cavity with this die at the die two ends.

These two punch that are synchronized with the movement are relatively controlled by same hydraulic jack.

The utility model makes that the shaping blank firm compact is even owing to adopted two-sided pressuring method, and especially the extent of damage of edges and corners reduces greatly, has improved blank quality and yield rate.

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

Fig. 1 is two-sided hydraulic forming machine front view.

With reference to accompanying drawing, the two-sided hydraulic forming machine of the utility model comprises hydraulic jack 1, frame 3, on frame 3, be fixed with a die 5 at least, there are two to be complementary with this die and can be along the punch 4 and punch 7 of the synchronous relative motion of this matrix cavity at the two ends of die 5, a crosshead that can move back and forth 2 is arranged on the frame, hydraulic jack 1 is fixed on an end of this crosshead 2, the piston rod end of this oil cylinder 1 is fixedlyed connected with punch 4, fixing punch 7 on the same axis of the other end of crosshead, also have an operating platform 11 and an auxiliary oil cylinder 8 on the frame 3, the piston head 9 of this auxiliary oil cylinder 8 places in the push-and-pull framework 10 of crosshead 2 outer ends, by stretching of piston rod, crosshead 2 is moved back and forth.

For crosshead 2 is moved flexibly, scroll wheel 12 is housed in its underpart, frame 3 is provided with the rail groove that is complementary with this scroll wheel 12.

During work, piston rod 13 retractions of auxiliary oil cylinder 8, driving crosshead 2 moves to the right, walk to the right output port of matrix cavity until punch 4, at this moment, space between punch 4 and punch 7 is a charging hopper, pack into behind the material, the piston rod 13 of oil cylinder 8 promotes crosshead 2 and resets, simultaneously, material is pushed in the die 5, close hydraulic jack 8, primer fluid compressing cylinder 1, at this moment, the piston rod of oil cylinder 1 promotes 4 pairs of materials of punch F that exerts pressure, simultaneously, because the cylinder body and the crosshead 2 of hydraulic jack 1 are fixed as one, therefore, crosshead 2 is subjected to a pulling force-F with pressure F opposite sign but equal magnitude, and the whole operation frame 2 that this pulling force-F makes drives punch 7 and makes rightabout (relative) with punch 4 and move, thereby, make the interior material of matrix cavity be subjected to the extruding of both direction, till pressure reached predetermined value, so far, the blank moulding finished, close hydraulic jack 1, primer fluid compressing cylinder 8, piston rod shrinks, and crosshead 2 is pulled to charging position, blank is deviate from, adjust the spacing of punch 4 and punch 7, next working cycles is carried out in charging once more.

In order to feed conveniently, two shelves flitch 6 are set in the both sides of die 5, when filling with substance can be pushed into it on operating desk 11, prevents material spilling, when crosshead 2 resets, drives the both sides that it is back to die 5.In addition, a mechanical stripping device 14 also can be set on frame.

Claims

1, a kind of hydraulic forming machine comprises hydraulic jack (1), and frame (3) is fixed with a die (5) at least on frame (3), has two to be complementary with this die at die (5) two ends, and can be along the punch (4,7) of the synchronous relative motion of this matrix cavity.

2, hydraulic forming machine as claimed in claim 1 is characterized in that described two punch (4,7) are controlled by a hydraulic jack (1).

3, hydraulic forming machine as claim 1 or 2, it is characterized in that a crosshead that can move back and forth (2) is arranged on the frame (3), hydraulic jack (1) is fixed on an end of crosshead (2), the piston rod end of hydraulic jack (1) is fixedlyed connected with punch (4), fixing second punch (7) on the same axis of the other end of crosshead (2), go up an operating desk (11) and an auxiliary oil cylinder (8) in addition in frame (3), the end of the piston rod (9) of this auxiliary oil cylinder (8) places in the push-and-pull frame (10) of crosshead (2) one ends, by stretching of piston rod (9), crosshead (2) is moved back and forth.

4, hydraulic forming machine as claimed in claim 3 is characterized in that scroll wheel (12) is equipped with in the bottom of crosshead (2), and the rail groove that is complementary with this scroll wheel (12) is arranged on frame (3).

5, hydraulic forming machine as claimed in claim 3 is characterized in that there are two movable shelves flitch (6) both sides of die (5), and this activity shelves flitch (6) can be along the axial reciprocating sliding of die (5).

6, hydraulic forming machine as claimed in claim 3 is characterized in that also having a stripper apparatus (14) on the frame.