CN2846095Y

CN2846095Y - Mixed casting device

Info

Publication number: CN2846095Y
Application number: CN 200520139966
Authority: CN
Inventors: 张春锦
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-17
Filing date: 2005-12-17
Publication date: 2006-12-13
Anticipated expiration: 2015-12-17

Abstract

The utility model relates to a mixing pouring device, and the device comprises a mixing and rabbling mechanism (1) and a pouring head. The utility model is characterized in that a disconnecting valve (2) is arranged on a liquid pouring channel vertically penetrating a material pouring head, and the defects of material dropping, material leaking, polluted environment, etc. existing in the original pouring device are overcome. The utility model adopts a rotary valve as the disconnecting valve (2), a transition groove (4-2) is arranged at one end opening of an overflowing hole (4-1) on a valve rod (4) of the rotary valve at the side along a radial direction and reverse with rotation, in the disconnection-communication process and the communication-disconnection process, namely, the initial and the ending quantities for pouring materials are in linear variations, the problem of handing over and taking over alluvial materials for annular products is effectively solved, the stability of the product quantity is ensured, the rate of finished products is improved, and the waste is reduced, so product producers can obtain good economical and social benefits.

Description

A kind of mixing apparatus for pouring

Technical field: the utility model relates to the high son of a kind of mixing apparatus for pouring of macromolecule chemical industry raw material and a kind of pair of component or many components and divides the chemical industry raw material to stir by rotation at a high speed to carry out the apparatus for pouring that injects after the polymerisation in mold cavity, especially be applied to the mixing apparatus for pouring of polyurethane, epoxy resin industrial chemicals.

Background technology: the mixing apparatus for pouring of two in the market components or many components macromolecule chemical industry raw material, mostly be that the mixing and blending machine structure directly connects (referring to Fig. 1) with pouring head, reservoir channel is vertically through the material feeding head, the passage upper end is infundibulate, link to each other with the hybrid chamber of rabbling mechanism, two components or many components macromolecule chemical industry raw material by the mixing and blending machine structure rotate at a high speed mix after, among material feeding head cast injection mould, when the operation sequence instruction stops cast, feed valve cuts out, because stir chamber has certain space, the mixed liquor that remains in this space can hang along the pouring head reservoir channel under the effect of gravity, form the tear drop phenomenon, bring very big technical barrier for the production of articles merchant of use equipment, cause product weight inaccurate, the quality instability, also form waste, also cause bad environment pollution simultaneously.

In addition, because polyurethane material unique technique performance, its range of application is extensive day by day, and the seal of annular or abnormity sealing is replaced by polyurethane product gradually, but by traditional mixing apparatus for pouring make interface point become silted up material and on workpiece the problem of tear drop can't solve all the time.

Summary of the invention: the purpose of this utility model is to overcome the deficiencies in the prior art, solves the insurmountable difficult problem of prior art, and a kind of industrial chemicals mixing apparatus for pouring simple in structure, easy to use is provided.

The existing apparatus for pouring that mixes promptly comprises mixing and blending machine structure 1, pouring head, reservoir channel is vertically through the material feeding head, the passage upper end is infundibulate, link to each other with the inner chamber of rabbling mechanism 1, mixing apparatus for pouring described in the utility model is that the reservoir channel of a described material feeding infundibulate bottom is provided with special construction cut-off valve 2, and this cut-off valve and feed valve move simultaneously, the clout of effectively having blocked in the mixing and blending machine structure cavity hangs, and has stopped the tear drop phenomenon.

Repeatedly practise with rotary valve as cut-off valve 2 by me, can improve valve and service life of equipment greatly, also solved the difficult problem that the cast interface point becomes silted up and expects by improvement simultaneously to valve rod, its concrete scheme is: this rotary valve comprises valve body 3, valve rod 4 and valve rod turn device 5, there is reservoir channel vertically to run through in the described valve body 3, its upper end is infundibulate, being positioned at the infundibulate below with the valve pocket 3-1 of valve rod 4 bedding-ins communicates with the reservoir channel difference in orthogonality, with have the flowing hole 4-1 identical on the corresponding valve rod 4 in reservoir channel position with the reservoir channel diameter, valve rod 4 and valve rod turn device 5 and are cross-linked by the tooth embedding of axle head separately, the other end of valve rod 4 is joined sealing gasket 6 and is fixed by plug screw 7 roof pressures of spiral on valve body 3, flowing hole 4-1 port on the described valve rod 4 radially has lead-over groove 4-2 with the reverse side of rotation, when rotary valve open close with make and break process in to be that material feeding is initial can make reservoir quantity be linear change during with ending.

Valve rod described in the utility model turns device 5 and adopts rotary cylinder, and its output axle head tooth embedding and valve rod 4 end tooth embeddings are cross-linked, and by the control to steam supply valve, guarantees the action and the feed valve close look at the swing of rotary cylinder.

Description of drawings:

Accompanying drawing 1 is a prior art apparatus for pouring structural representation;

Accompanying drawing 2 is the utility model example structure schematic diagram;

Accompanying drawing 3 is Fig. 2 rotary valve closed condition schematic diagram;

Accompanying drawing 4 is Fig. 2 A-A sectional view;

Accompanying drawing 5 is a kind of valve rod lead-over groove sectional view;

Accompanying drawing 6 is another kind of stem shaft surface development;

The utility model is described in further detail below in conjunction with accompanying drawing, and provide embodiment.

A kind of novel mixing apparatus for pouring embodiment 1 of this practicality is as Fig. 2, shown in Figure 4, valve body 3 is fixedlyed connected with mixing and blending machine structure bottom, reservoir channel vertically runs through wherein, its underpart is installed with cast and chews 8, the passage upper end is infundibulate, link to each other with the inner chamber of rabbling mechanism 1, being positioned at the infundibulate below with the valve pocket 3-1 of valve rod 4 bedding-ins communicates with the reservoir channel difference in orthogonality, with have the flowing hole 4-1 identical on the corresponding valve rod 4 in reservoir channel position with the reservoir channel diameter, this flowing hole 4-1 port radially has lead-over groove 4-2 with the reverse side of rotation, one end of valve rod 4 is provided with tooth embedding and valve rod, and to turn device be that the output axle head tooth embedding of rotary cylinder is cross-linked, the other end is joined sealing gasket 6 and is fixed by plug screw 7 closedtops of spiral on valve body 3, drive clockwise in the process that valve rod closes (referring to Fig. 3) at rotary cylinder, the flow channels cross section is ratio and reduces until closing the corresponding variation with it of material feeding liquid.

According to the cast product requirement, the lead-over groove 4-2 of valve rod flowing hole port can produce a desired effect by change of shape, and the utility model has a kind of lead-over groove 4-2 and flowing hole 4-1 footpath wide, and its cross section is wedge shape (referring to Fig. 5); Another kind of lead-over groove 4-2 starting point and flowing hole 4-1 footpath are wide, its groove such as taper (referring to Fig. 6).

Claims

1, a kind of mixing apparatus for pouring, comprise mixing and blending machine structure (1), pouring head, reservoir channel is vertically through the material feeding head, and the passage upper end is infundibulate, link to each other with the inner chamber of rabbling mechanism (1), it is characterized in that: the reservoir channel of a described material feeding infundibulate bottom is provided with cut-off valve (2).

2, a kind of mixing apparatus for pouring according to claim 1, it is characterized in that: described cut-off valve (2) is a rotary valve, comprise valve body (3), valve rod (4) and valve rod turn device (5), described valve body has reservoir channel vertically to run through in (3), its upper end is infundibulate, being positioned at the infundibulate below with the valve pocket (3-1) of valve rod (4) bedding-in communicates with the reservoir channel difference in orthogonality, have the flowing hole (4-1) identical on the valve rod corresponding (4) with the reservoir channel diameter with the reservoir channel position, valve rod (4) and valve rod turn device (5) and are cross-linked by the tooth embedding of axle head separately, and the other end of valve rod (4) is joined sealing gasket (6) and fixed by plug screw (7) closedtop of spiral on valve body (3).

3, a kind of mixing apparatus for pouring according to claim 2 is characterized in that: flowing hole (4-1) port on the described valve rod (4) radially has lead-over groove (4-2) with the reverse side of rotation.

4, according to claim 2 or 3 described a kind of mixing apparatus for pouring, it is characterized in that: it is rotary cylinder that described valve rod turns device (5), and its output axle head tooth embedding and valve rod (4) end tooth embedding are cross-linked.

5. a kind of mixing apparatus for pouring according to claim 3 is characterized in that: described lead-over groove (4-2) is wide with flowing hole (4-1) footpath, and its cross section is wedge shape.

6. a kind of mixing apparatus for pouring according to claim 3 is characterized in that: described lead-over groove (4-2) starting point and flowing hole (4-1) footpath are wide, its groove such as taper.