CN2143535Y

CN2143535Y - Damp sand type centrifugal casting pipe machine group

Info

Publication number: CN2143535Y
Application number: CN 92227524
Authority: CN
Inventors: 罗尊
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-16
Filing date: 1992-07-16
Publication date: 1993-10-13
Anticipated expiration: 2002-07-16

Abstract

The utility model relates to a damp sand type centrifugal casting pipe machine group, which is applicable to cast high quality casting iron pipes with various shapes, wherein, comprising double flanges, which are difficult to be cast by metal type centrifugal casting method. The damp sand type centrifugal casting pipe machine group comprises a sand iteration machine, a molding machine, a set of double die pouring rotary bench and matched double pouring truck thereof, a pipe pushing machine and matched pipe connecting and moving device thereof and a plurality of pipe dies. The plurality of pipe dies are positioned at mutual parallel working positions, that is molding, truing, pouring and pipe pushing can be operated simultaneously at transshipment working positions, and mechanical continuous production can be realized by means of the displacements of overhead mechanical hoisting machines or auxiliary lower pipe die lifting and moving vehicles with few operating staff and high production efficiency.

Description

Damp sand type centrifugal casting pipe machine group

The utility model is a kind of damp sand mold Centrifugal Casting Pipe Unit, and it not only is applicable to the high quality cast iron pipe of casting common shape, is particularly useful for casting band double flange, the pipe of double-bellmouth head, two major parts.Belong to centrifugal casting machinery field.

The method of at present domestic current casting band double flange iron pipe adopts horizontal manual sand casting mostly.Its operation is numerous and diverse, and main ingredient consumption is big, and working condition is abominable, and production efficiency is extremely low.Especially because of core is subjected to lift on the molten iron buoyancy, body wall thickness difference is difficult to control; Add because of loosening seriously gas, floating gathering of floating sand, cause pipe to be difficult to by the higher water pressure test in body upper wall and cast gate position thermal center.Though stinting, manufacturer do not make pipe thicken, overweightly improve scheming, loss due to spoiled work still very big (usually more than 30%), and it is very little often get a profit because of cost is very high, even loss of capital and be difficult to production.When this pipe was carried soda acid, also often because of annual a large amount of replacing of pipe quality problems, even in use the way met accident to leak and stops work, and the user is taken a bath.External cast tube fado adopts sand mold centrifugal casting.But its moulding is poured into a mould and is gone out tube apparatus and all belongs to the burst setting, by means of the reciprocal handling pipe die in the long distance of factory building crane ground, and pipe, because of floor space is big, the operation flow periods is long, has many-sided disadvantage that common on-mechanical Foundry Production has.

The purpose of this utility model is provided with existing many-sided problem with regard to being the moulding, cast and the cast tube equipment burst that solve employed horizontal manual sand mold of above-mentioned domestic current cast tube method and external use, a kind of damp sand mold Centrifugal Casting Pipe Unit is provided, to realize small investment, instant effect, high-quality and efficient, low consumption, produce cast tube continuously at low cost, especially flanged dish be applicable to the high quality cast iron pipe of carrying soda acid.

Another purpose of the present utility model provides a kind of manipulator crane that is used for this class unit.

The utility model also has purpose to provide a kind of this class unit that is used for, and in order to the load that alleviates the manipulator crane and work frequency, the pipe die that is positioned at the station below is lifted and moved car.

A purpose more of the present utility model provides a kind of this class unit that is used for, and adopts the portable spiral moulding machine of hydraulic control spring damping device.

Damp sand mold Centrifugal Casting Pipe Unit of the present utility model comprises that one is sent the sand machine to what the moulding machine hopper added molding sand, the bimodulus that a moulding machine that is used for the pipe die moulding, a cover are used for gate spool revolves platform and supporting double-contracting (or single bag) pouring truck with watering (or single mode cast).One is used to eject the push-bench of pipe and supporting adapter pipe-conveying device, and many pipe dies.When adopting the single mode cast to revolve platform, this unit is provided with at least five stations that are parallel to each other.When adopting bimodulus with watering at least eight stations when revolving platform, i.e. moulding station, at least one finishing (finishing pipe die two ends, install blanking cover additional) station, 1-2 cast station, one ejects station and several transfer stations, and many pipe dies are worked on a plurality of stations that are parallel to each other simultaneously, pipe die the displacement of the samsara between each station by means of be arranged on above the station the manipulator crane and below pipe die lift and move car.

The station of this unit can be provided with as required, is not particularly limited, and is generally 5-12.Especially good is 8-12.

The arrangement of each station of this unit also can be provided with as required, is not particularly limited, and for example the cast station can be arranged on an end, in the middle of also can being arranged on.

The employed sand machine that send of this unit is not particularly limited, but uses belt conveyer usually.

The moulding machine that this unit uses is the spiral moulding machine, is good with the portable spiral moulding machine that is described in detail among the embodiment especially.

For the load and the work frequency of the manipulator crane that alleviates station top, pipe die can be set below station lift and move car, but and the nonessential pipe die that is provided with lift and move car.

This unit total arrangement novelty, simple and compact for structure, easy to use and reliable, production efficiency is quite high, and can arrange unit quantity flexibly according to the description and the production capacity of required production cast iron pipe, station order and station sum.

Fig. 1 is the schematic plan view of first embodiment of damp sand mold Centrifugal Casting Pipe Unit of the present utility model;

Fig. 2 is the diagrammatic elevational view of first embodiment shown in Figure 1;

Fig. 3 is the schematic plan view of second embodiment of unit of the present utility model;

Fig. 4 is the schematic plan view of the 3rd embodiment of unit of the present utility model;

Fig. 5, A, B are respectively manipulator crane signal facade and the side views that is used for this unit;

Fig. 6, A, B are respectively that the pipe die act that is used for this unit moves car signal facade and side view;

Fig. 7, A, B are respectively portable spiral moulding machine signal facade and the planes that is used for this unit.

Main label and meaning thereof are among the figure:

1-moulding station; The 2-finishing station; 3-pours into a mould station; 4-push pipe station; 5-transfer station; 6-send the sand machine; The 7-moulding machine; Platform is revolved in the 8-cast; The 9-pouring truck; The 10-push-bench; 11-manipulator crane; The 12-pipe die is lifted and is moved car; 13-takes over car; 14-slip pipe frame; 15-46 manipulator crane, pipe die is lifted the main parts size of moving car and moulding machine.

The general working condition of unit of the present utility model is such:

Send sand machine 6 to add molding sand to the hopper of moulding machine 7, moulding machine 7 is according to specification moulding in pipe die; The pipe die of having made type directly moves car 12 with manipulator crane 11 or pipe die act without baking and moves to finishing station (subsequently another pipe die is displaced to moulding station 1 and carries out moulding simultaneously), so that finishing pipe die two ends sand head installs blanking cover additional, finishes casting mold.Completed then casting mold moves car 12 with manipulator crane 11 or pipe die act and moves to cast station 3, pours into a mould with pouring truck 9.After treating that the pipe of having poured into a mould is cooled to a certain degree, the pipe die of finishing cast moves car 12 with manipulator crane 11 or pipe die act again and is displaced to push pipe station 4 successively, the pipe that will water with push-bench 10 once ejects, (after this, moulding station 1, finishing station 2, all parallel operations simultaneously of cast station 3 and push pipe station 4) pipe that is ejected directly drops on and takes on the car 13, and (as slip pipe frame 14) sent into and leveled the building site more in a certain way.Like this, just can use this unit to begin to realize that to sending pipe the mechanization of cast tube is produced continuously from last molding sand again and again.

Below in conjunction with accompanying drawing several embodiment of the present utility model are described in detail.

Embodiment 1.

Fig. 1 and Fig. 2 are the schematic diagrames of first embodiment of expression unit of the present utility model, this unit has 12 stations, and can make maximum diameter is 150mm, and maximum length is the high quality cast iron pipe of 2m band double flange, also can produce other pipe, per hour calculate output up to 20.The number in the figure I is represented moulding station 1, and II is represented moulding station 2, and III represents to pour into a mould totally 2 of station 3(), IV is represented push pipe station 4, V is represented totally 7 of the transfer station 5(of above each station).The unit sky is provided with manipulator crane 11, section below, a left side is established the act of bimodulus pipe die and is moved car 12, right section below is established the single mode pipe die and is lifted and move car 12, and the sand mold that the station I is made is lifted with a right section single mode pipe die and moved car 12 and lift and move to the station II and go finishing, lifts the station V placement that moves to its left side again.Manipulator crane 11 will be positioned on the station V of right side and eject pipe simultaneously, and the pipe die of having leveled inner chamber winches to moulding on the station I, hang again on the station II and repair, lift with left side section bimodulus pipe die then and move car 12, two casting molds that station III right side has been trimmed are lifted together and are moved on on 2 station III, with double-contracting pouring truck 9 cast simultaneously.Moving car 12 with the act of bimodulus pipe die again when good pipe to be cast is cooled to about 800～900 ℃ once lifts on two transfer station V that move on to its left side, winching to two of the right sections of unit one by one with manipulator crane 11 then treats to eject pipe on the migration station V successively more subsequently on the transfer station V of push pipe.And the pipe die that will eject pipe moves and is put on the left side transfer station V of preparing moulding, is upper moulding to treat the casting mold of making on the station I after removing, and so goes round and begins again.Obviously the displacement of pipe die or with manipulator crane 11 or to move car 12 with the pipe die act be very nimble.

Embodiment 2:

Fig. 3 represents the schematic diagram of the 2nd embodiment of unit of the present utility model.This unit has 8 stations, can produce maximum diameter 300mm, and maximum length is the two flange pipes of 3m and the pipe of other approximate specification.Per hour high-throughput is 16.Wherein, the indicated station title of label I～V is with embodiment 1.

Each station top also is provided with manipulator crane 11, does not establish the pipe die act below the section of a unit left side and moves car, and only right section below is provided with a single mode pipe die act and moves car 12.Why so arranging is owing to the lower frequency that is shifted of secondary station efficient of right side station is bigger.

Embodiment 3:

Fig. 4 represents the schematic diagram of the 3rd embodiment of unit of the present utility model.This unit is provided with 5 stations, and can produce maximum diameter is 350mm, and maximum length is other pipe that the high quality cast iron pipe of the band double flange of 4m reaches approximate specification.Hourly output 6-8 root.Station title shown in number in the figure I～V is with above-mentioned embodiment, and each station top is provided with manipulator crane 11, and the below is not provided with the pipe die act and moves car (because of station is few, the work efficiency of manipulator crane is enough), and working condition and embodiment 1 are substantially roughly the same.

Be described in detail the structure of the several main devices that constitute unit of the present utility model below again.

Shown in Fig. 5 A, B, manipulator crane 11 comprises rail frame 15, car body 16, critical pieces such as undercarriage 17 and pneumatic suspension hook 18.Rail frame 15 adopts the shaped steel Welding Structure, and with 19 supportings of four root posts, its guide rail 20 is vertical mutually with the station orientation.Divide a word with a hyphen at the end of a line and the driver parts such as bridge motor and decelerator of car body 16 all are contained on the platen 21, and platen 21 usefulness four rollings 22 are bearing on the guide rail 20; Undercarriage 17 both sides with two steel cables 23 hang be positioned on car body platen 21 both sides 2 with blowout patche tube 24 on.And be provided with along the pulley 26 of car body slide rail 25 vertically-guideds, its underpart installing pneumatic type folding suspension hook 23 realizes embracing pipe die 28 is hung oneself and pipe die falls a back loose hook.

As Fig. 6, shown in A, the B, four orthogonal with the station orientation, as to divide a word with a hyphen at the end of a line rollers 30 also are equipped with in the below that pipe die is lifted the platen 29 move car 12 on guide rail, by high-quality electric reducer structure 31 drivings of platen 29 belows installing.Pallet body 32 is lifted by means of cylinder or fluid cylinder 23 in the installing of platen 29 central vertical, by guide pin bushing 35 orientations of the guide rod 34 of installing thereon and installing on platen 29.

Moulding machine 7 adopts the spiral moulding machines, especially with the portable spiral moulding machine of controllable spring damping unit.Four rollers 37 that can roll and divide a word with a hyphen at the end of a line are equipped with in vehicle frame 36 belows on guide rail, vehicle frame 36 tops are equipped with and are driven the transmission system 40 that transmission system 38 that car divides a word with a hyphen at the end of a line and drive screw 39 rotate.When the pipe die of preparing moulding is fallen moulding station 1, clamp pipe die with the clamping support (not shown) on the station.When the die head 41 that travels to the front end of its screw rod 39 when moulding machine 7 arrived precalculated positions, screw rod 39 began to rotate; Simultaneously, use send sand machine 6 molding sand to be joined equably in the hopper 42 of moulding machine 7, the molding sand that is pushed into the top by spiral by consolidation after, its propulsive thrust retreats screw rod 39, thereby whole moulding machine 7 is retreated, withdraw from pipe die until the die head 41 of screw rod 39 front ends and form the die cavity of cylindrical surface.During moulding, the resistance when the consolidation degree of molding sand retreats with screw rod 39 becomes.For making moulding smooth, consolidation is even, and the frictional resistance that produces between roller and guide rail except moulding machine 7 dead weights, and outside the frictional resistance of other parts also must add a fixing thrust.This thrust normally realizes with the top power of the lengthening hydraulic jack of device on vehicle frame 36.This unit then adopts controllable spring damping unit simple in structure to realize.The controllable spring damping unit regulates and control the degree of holding tightly of 44 pairs of damper rods 45 of brake gear by the pressure of regulation and control micro hydraulic station 43 oil cylinders and the decrement of damping spring 46 realizes regulation and control.

Bimodulus revolves platform 8 and the 9 supporting uses of double-contracting pouring truck with watering, and can realize the once-cast two tubes, improves nearly one times of work efficiency, and to revolve platform 8 be to revolve the mutual neighbour of platform with two to put to bimodulus with watering, with a public motor-driven.

9 settings supporting with it of double-contracting pouring truck are with two casting ladle cast of a shared oil hydraulic cylinder upset.

Push-bench 10 is the equipment that is fixed on the ground, once moves with hydraulic pressure pipe is ejected on the adapter car 13, with pneumatic or hydraulic pressure pipe is turned on the slip pipe frame 14 again, levels the area so that pipe tumbles automatically.

This set structure compactness, cheap, floor space is little, and operating personnel are few, and unit are production capacity and production efficiency is all higher per capita can reach 0.002 ton/meter respectively ²Hour and 0.6～0.8 ton/day for human beings, this unit can be produced the high-quality acid and alkali resistance cast iron pipe of band double flange, also can produce the various water pipes, tracheae of other double-bellmouth head, two major part, single major part and general shape etc.Adaptation molten steel quality scope is wide, technology controlling and process is easy, and product quality is high and adopt a kind of pipe die of specification can produce the double end and the single head pipe of adjacent several specifications, is safeguarding that the length in pipe die life-span can be suitable with equipment under the good situation.

Claims

1, a kind of damp sand mold Centrifugal Casting Pipe Unit, what comprise that a hopper 42 to moulding machine 7 adds molding sand send sand machine 6, a moulding machine 7 that is used for the pipe die moulding, one overlaps single mode (or bimodulus) cast that is used for gate spool revolves platform 8 and corresponding single (or double-contracting) pouring truck 9 that wraps, a push-bench 10 and many pipe dies that are used to eject pipe, it is characterized in that: this unit is provided with at least five (or eight) stations parallel to each other, it is moulding station 1, finishing station 2, cast station 3, push pipe station 4 and an amount of transfer station 5; Many pipe die multiple operations on a plurality of stations parallel to each other, the samsara displacement; Pipe die in the samsara between each station displacement by means of being arranged on manipulator crane 11 above the station to realize mechanizeding continuous operation.

2, damp sand mold Centrifugal Casting Pipe Unit according to claim 1 is characterized in that: be provided with 5-12 station.

3, damp sand mold Centrifugal Casting Pipe Unit according to claim 1 and 2 is characterized in that: send sand machine 6 to adopt belt conveyer.

4, damp sand mold Centrifugal Casting Pipe Unit according to claim 1 and 2 is characterized in that: moulding machine 7 adopts the spiral moulding machine.

5, damp sand mold Centrifugal Casting Pipe Unit according to claim 4 is characterized in that: moulding machine 7 adopts the portable spiral moulding machine of hydraulic control spring damping.

6, damp sand mold Centrifugal Casting Pipe Unit according to claim 1 and 2 is characterized in that: the single mode and/or the act of bimodulus pipe die that also are provided with 11 work of auxiliary manipulator crane below station move car 12.