CN2492586Y

CN2492586Y - Paper pulp forming mould

Info

Publication number: CN2492586Y
Application number: CN 01249970
Authority: CN
Inventors: 刘耿; 勇波
Original assignee: Wuhan No2 Machine Tool Works
Current assignee: Wuhan No2 Machine Tool Works
Priority date: 2001-06-29
Filing date: 2001-06-29
Publication date: 2002-05-22
Anticipated expiration: 2011-06-29

Abstract

The utility model is a pulp molding forming die. The utility model consists of a forming die 2, a sieve 4 and a hollow absorption part, and in which the hollow absorption part is added with a mold core 1 with a through hole 1-1. The shape of the core head of the mold core 1 is similar with the shape of the die, which can exactly fill the hollow part of the die. The through hole leads to the core end 1-3 which connects with low pressure cavity through a close surface formed by the core head of the mold core and the die. The bore diameter of the through hole is 3-6mm, uniformly distributed, and the hole spacing is 12-20mm.

Description

The paper mould shaping dies

The utility model relates to a kind of paper mould shaping dies.Specifically be exactly in the moulded paper pulp product forming process, paper pulp forms this particular manufacturing craft of the wet base that is shaped smoothly.

Existing common shaping dies is that the mould by hollow adheres to one or more layers filter screen and constitutes.It is sunk in the paper pulp, filter out the most of water in the paper pulp, on the mould filter screen that is shaped, form the wet base of goods, and then form goods through other operations such as hot pressing.The common disadvantage of this common shaping dies is exactly that to form time of qualified wet base oversize.If the shortening drainage time, the moisture of wet base is too high, and the yield rate in the HEAT SETTING process is just too low, even the qualification rate of wet base itself is just very low.

The purpose of this utility model is exactly in shaping dies, increases a kind of core rod, improves the water absorption rate of mould itself, makes it use the extremely short time just moisture to be filtered away in forming process, and production efficiency and yield rate are greatly improved.

The technical solution of the utility model is achieved in that this paper mould shaping dies comprises shaping die body 2, filter screen 4 and hollow absorbed portion, wherein the attached part of suction increases the core rod 1 that through hole 1-1 is arranged, the core print of core rod 1 is similar to the die body shape, just in time fill the die body hollow space, through hole be from the core rod core print lead to the core tail 1-3 that is connected with low-pressure cavity with the face of pressing close to of die body.

Described paper mould shaping dies, the aperture of through hole 1-1 are 3-6mm, evenly distribute, and pitch-row is 12-20mm.

The utility model has the advantages that on the basis of existing mold, increase a kind of core rod of uniform an amount of through hole, in order to fill the hollow space of shaping die body, force mould in the drainage process, at first extrusion die holds the space of water.The hole in quantity reasonable in design and aperture on mould core then, the moisture that makes filter screen leach can be discharged by the through hole of core rod apace.Be with a kind of simple structure, significantly improved the wet base forming efficiency of paper mould production, the qualification rate and the production efficiency of wet base and goods all are greatly improved.

Below accompanying drawing of the present utility model is described:

Fig. 1 is a structural representation of the present utility model, and 2 is shaping die bodys among the figure, the 4th, and filter screen, the 1st, core rod, 1-1 are through holes, the 3rd, press the net circle, the 5th, fixed station, 1-2 are that core rod connects platform, 1-3 is that core rod core tail, 1-4 are the core rod core prints.The other parts of finishing die are same as the prior art, just increased a core rod 1, and the core rod middle part has one to connect platform 1-2, connect platform and by securing member core rod are fixed on the die body fixed station 5, and during use, core rod core tail one end places a low-pressure cavity.

Below embodiment of the present utility model is described.

The other parts of finishing die are same as the prior art, just increased a core rod 1, and the core rod middle part has one to connect platform 1-2, connect platform and by securing member core rod are fixed on the die body fixed station 5, and during use, core rod core tail one end places a low-pressure cavity.Core rod of the present utility model and die body shape are complementary, and promptly the core print of core rod is just in time filled the hollow space of die body, and through hole is that die body hollow face leads to core rod core tail from the core rod core print, and the diameter of through hole is relevant with size with shape of products with quantity on the core rod.When the flow of draining was certain value, the aperture increased, and flow velocity can reduce, and the aperture reduces, and flow velocity has increased, and the pressure loss can increase.In the production application of reality, when pressure and flow one timing, the aperture should be comparatively reasonable between φ 3-φ 6mm.Pitch-row 12-20mm.

The utility model is suitable for the shaping dies of different shape, no matter is circular or square or other shape, and core rod changes along with the shape of finishing die cavity, partly is principle with cavity filling.Why therefore, no matter mold shape petty change as long as added core rod with holes in the finishing die cavity, all belongs to protection domain of the present utility model.

Claims

1, a kind of paper mould shaping dies, comprise shaping die body (2), filter screen (4) and hollow absorbed portion, it is characterized in that the hollow absorbed portion has the core rod (1) of through hole to fill with one, the core print of core rod (1) is similar to the die body shape, just in time fill the die body hollow space, through hole (1-1) is to lead to the core tail (1-3) that is connected with low-pressure cavity from the core rod core print with the face of pressing close to of die body.

2, paper mould shaping dies according to claim 1, the aperture that it is characterized in that through hole (1-1) is 3-6mm, arranges that evenly pitch-row is 12-20mm.