CN2093079U

CN2093079U - Moulding face plate prepressing die set

Info

Publication number: CN2093079U
Application number: CN 91202447
Authority: CN
Inventors: 陆瑜
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-02-08
Filing date: 1991-02-08
Publication date: 1992-01-15

Abstract

The utility model relates to a prepressing die set for applying for producing moulding wood products in the wood processing technology. The utility model refers to the problems that in the process of prepressing, the moulding products have ubiquitous difficult prepressing material blank demoulding and low material blank serviceability rate to design. The utility model is characterized in that a male die is arranged above, and a female die is arranged below. The die set is a composite structure. The positive surface of the male die adopts a flat surface model. An anti-clogging taper is arranged on the side wall of the male die. An automatic correcting taper is arranged on the inner wall of an upper end of a material surrounding ring. A positioning reference curved surface is arranged on the outer wall of a lower end. A manual placing skidproof lifting slot is arranged on the outer wall.

Description

Moulding face plate prepressing die set

The utility model relates to the prepressing device of production mold pressing woodwork in a kind of precompressed of mold pressing the panel mould, particularly wood processing technique.

The pre-pressing process process is the preparatory stage of hot press forming technology process, be the wood particulate after the glue mixing be placed on enclosing of precompressed mould add in the material circle press to material base with certain degree of hardness after, the release die sinking is taken out material base and is also moved the process of changing to heat pressing and molding mold.The pre-pressing process process directly affects the surface quality of mold pressing woodwork, and small rut, shank line, the stain that produces at the mold pressing wood product surface, defective such as be close to all are because the material base surface local that material base causes in the demoulding, billet shift, die change process is peeled off breakage and material base takes out the back overinflation and cause.

In the prior art, the position of formpiston is following, and the position of former is last, and promptly the material base of being produced faces up, and is negative downward.In the process of putting into wood particulate and paving, because making thinner particle sink to the bottom, the interior friction between particle forms fine and smooth closely knit bottom, after promptly particle became base, positive loose, matt, the unit volume gel content was minimum.Easily to the material base percdation, the coating consumption is relatively large at hot pressing fashionable dress veneer coating.The positive surface modeling that adopts of formpiston is a upright Cylinder, encloses the material circle and is upright tubulose, and formpiston falls into wood particulate easily with enclosing in the fit clearance of material between enclosing, and causes demoulding difficulty.After the precompressed release die sinking, earlier material base is taken out, and then carry out hot-formingly, it is apparent in view to take out being radially expanded of back material base, so, when hot pressing, cause the finish coat damage phenomenon that is close to easily.Mould adopts whole method for processing, makes complexity, and material expensive is so that cost of manufacture increases.In addition, must use in the prior art and enclose material circle telescoping mechanism and former mould emptier, the corresponding cost that increased.

The purpose of this utility model is to overcome above-mentioned deficiency of the prior art and a kind of mold pressing panel precompressed mould simple, that cost is low, easy to use of making is provided.

To achieve these goals, the technical solution that the utility model provides is: with the location swap of former and formpiston, make the formpiston position last, the former position is following, mould adopts fabricated structure, the inner chamber that is processed by corrosion resistant plate on the former liner, former and formpiston are made by ordinary low-carbon steel.

In order to reach better effect, the positive planar design that adopts of formpiston of the present utility model, the formpiston sidewall has an anti-clogging tapering α, its size is 5～10 °, and enclosing material circle upper end inwall has the tapering β that sets right automatically, and its size is 10～15 °, enclose material circle lower end outer wall and have location benchmark curved surface, its angle is that φ is 25～30 °, and θ is 18～22 °, encloses the material ring outer wall and has the manual anti-skidding groove of carrying.

Mold pressing panel precompressed mould compared to existing technology the utlity model has following advantage:

The material base of " 1 " particle through being pre-pressed into, it is positive fine and smooth closely knit, and unit volume gel content maximum is smooth, smooth, hard, weakens to the material base Surface Permeability at hot pressing fashionable dress veneer coating, and the coating consumption is low;

" 2 " have omitted stripping process in the precompressed process;

" 3 " are enclosed the material circle and are easy to location and adjustment, pick and place conveniently;

" 4 " have improved quality of item, and precompressed material base serviceability rate reaches more than 99%;

" 5 " cost of manufacture is significantly less than pre existing pressing mold tool.

Accompanying drawing is an embodiment of the utility model mold pressing panel precompressed mould.

Fig. 1 is the elevational cross-sectional view of mold pressing panel precompressed mould.

Fig. 2 is that mold pressing panel precompressed mould encloses material delineation position benchmark curved surface partial sectional view.

Below in conjunction with accompanying drawing essentiality content of the present utility model and characteristic thereof are further described:

The utility model is with formpiston (1) in the pre existing pressing mold tool and former (2) location swap, the position that makes formpiston (1) is last, the position of former (2) is following, be that material base (9) faces down, in the process of putting into wood particulate and paving, because making thinner particle sink to the bottom, the interior friction between particle forms fine and smooth closely knit bottom, particle not only can obtain colory front after becoming base, and because the surface area maximum of this fine and closely woven layer unit volume, therefore unit volume gel content maximum that relatively should fine and closely woven layer under the situation of thickness particle glue mixing together, pass through follow-up hot press forming technology process again, goods can obtain smooth, smooth, hard front, can also effectively prevent decorative cover coating when hot pressing to the material base percdation, make the goods decorative cover have gloss more, and reduced the coating consumption.The inner chamber of on former (2) liner, making (3) by corrosion resistant plate, the cavity shape consistent size of precompressed dies cavity (3) and hot pressing die can directly be moved material base (9) to change to heat pressing and molding mold together with stainless steel inner chamber (3) after the precompressed release die sinking and be carried out hot pressing.The heat pressing process process is finished in two stages, at first makes material base (9) obtain smooth smooth and watchcase with suitable intensity, opens heat pressing and molding mold then, puts into decorative cover, and is closed again, finishes hot-forming process.Omit the precompressed stripping process, stripping process has been interted to the hot pressing interstage from precompressed carry out, overcome the expansion of material base (9).Simultaneously, the positive planar design that adopts of formpiston (1), formpiston (1) sidewall has an anti-clogging tapering α (5), and the size of tapering α (5) is 7 °, has reduced formpiston (1) and has enclosed the contact area of expecting between the circle (4), avoids clogging to take place.Enclose material circle (4) lower end outer wall and have location benchmark curved surface (7), its angle φ is 30 °, and θ is 20 °, is used for the location that actual production process is enclosed material circle (4).Enclose material circle (4) upper end inwall the one tapering β (6) that sets right is automatically arranged.The size of tapering β (6) is 12 °, when formpiston (1) when pressing down, its role is to adjust the position enclose material circle (4).Enclose material circle (4) outer wall and have the manual anti-skidding groove (8) of carrying, be convenient to enclose the craft of expecting circle (4) and pick and place.Formpiston (1) and former (2) all adopt the ordinary low-carbon steel of relative low price to make; stainless steel inner chamber (3) does not need the processing of special steel punch die yet; saved the mould emptier that encloses material circle (4) telescoping mechanism and former (2) simultaneously; material base (9) quality improves; serviceability rate reaches more than 99%, and the manufacturing cost of precompressed mould reduces greatly.

Claims

1, a kind of mold pressing panel precompressed mould, it comprises formpiston, former and encloses the material circle, feature of the present utility model is that formpiston (1) position is last, former (2) position is following, and mould is a fabricated structure, the positive planar design that adopts of formpiston (1), formpiston (1) sidewall has an anti-clogging tapering α (5), enclosing material circle (4) upper end inwall has the tapering β (6) that sets right automatically, encloses material circle (4) lower end outer wall and has location benchmark curved surface (7), encloses material circle (4) outer wall and has the manual anti-skidding groove (8) of carrying that picks and places.

2, mould according to claim 1, feature of the present utility model are the inner chambers (3) that is processed by corrosion resistant plate on former (2) liner.

3, mould according to claim 1, feature of the present utility model are that formpiston (1) and former (2) are made by ordinary low-carbon steel.

4, mould according to claim 1, feature of the present utility model are that the size of anti-clogging tapering α (5) is 5～10 °.

5, mould according to claim 1, feature of the present utility model are that set right the automatically size of tapering β (6) is 10～15 °.

6, mould according to claim 1, feature of the present utility model are that the angle φ of location benchmark curved surface (7) is 25～30 °, and θ is 18～22 °.