CN102814903A

CN102814903A - Rotational molding die

Info

Publication number: CN102814903A
Application number: CN2012103085445A
Authority: CN
Inventors: 张洪昌
Original assignee: WUXI HUARUN ENVIRONMENTAL EQUIPMENT CO Ltd
Current assignee: WUXI HUARUN ENVIRONMENTAL EQUIPMENT CO Ltd
Priority date: 2012-08-28
Filing date: 2012-08-28
Publication date: 2012-12-12

Abstract

The invention provides a rotational molding die. The rotational molding die comprises a plurality of semicircle upper dies, a plurality of semicircle lower dies and two end sockets, wherein a tank body with a hollow inner part is formed by mutually buckling the upper dies and the lower dies, a plurality of first flange ribs and a plurality of second flange ribs, which are parallel to an axis of the tank body, are arranged on the upper dies and the lower dies along a radial direction in an outward stretching way, fourth flange ribs which are vertical to an axis direction of the tank are arranged on the upper dies and the lower dies along the radial direction in the outward stretching way, and the upper dies and the lower dies are mutually buckled by penetrating through the first flange ribs and the second flange ribs or the fourth flange ribs through a plurality of bolt assemblies; third flange ribs are arranged on the two end sockets along the radial direction in the outward stretching way, and the end sockets and the tank body are buckled by penetrating through the third flange ribs and corresponding fourth flange ribs through a plurality of bolt assemblies; and each first flange rib is provided with a through hole, a nut is fixedly arranged above the through hole, and one bolt is movably contained in the nut. Through the structure, bolts can be rotated in demolding, bonded second flange ribs can be ejected out through the bolts, thus the demolding efficiency is increased, and the labor strength of an operator is relieved.

Description

A kind of Plastic Rolling Molds

Technical field

The present invention relates to a kind of plant equipment, relate in particular to employed a kind of Plastic Rolling Molds in a kind of rotational molding technique process.

Background technology

Rotational molding technique is a kind of process of hollow plastic product moulding.Rotational molding technique is that toner is added in the Plastic Rolling Molds, heats Plastic Rolling Molds then, and makes it to rotate continuously along two axles that are parallel to each other.Resin in the Plastic Rolling Molds be coated with equably gradually under the effect of gravity and heat, fusion attaches on the inner surface of Plastic Rolling Molds, thereby form needed shape, cooling die then, the demoulding obtains rotomoulded articles.

Plastic Rolling Molds of the prior art normally is made up of some removable mold.Be attached on the inner surface of this Plastic Rolling Molds equably when resin after, need Plastic Rolling Molds be dismantled the demoulding, to form final rotomoulded articles.Plastic Rolling Molds generally includes: some patrixes, some counterdies, the outer wall of patrix and counterdie is provided with fin, and through some bolts patrix and counterdie is buckled and to be held.In like manner, patrix and counterdie button are held, to form complete Plastic Rolling Molds through two end sockets.

The Plastic Rolling Molds of this structure under the effect of the resin after solidifying, becomes the demoulding and requires great effort very much when the demoulding, has therefore caused the demoulding inconvenient, the defective that operating personnel's intensity is bigger.

In view of this, be necessary Plastic Rolling Molds of the prior art is improved, to address the above problem.

Summary of the invention

The object of the present invention is to provide a kind of Plastic Rolling Molds,, alleviate operating personnel's labour intensity in order to improve the efficient of the demoulding.

For realizing above-mentioned purpose, the invention provides a kind of Plastic Rolling Molds, it comprises:

Fasten some semicircular patrix and some semicircular counterdies each other with the tank body that forms inner hollow; Said patrix radially outward protrudes out some first fins and second fin parallel with the axis direction of tank body with counterdie; And four fin vertical with the axis direction of tank body; Connect said first fin and second fin or said the 4th fin through some bolt assemblies, hold so that patrix and counterdie are interlocked;

Two end sockets, it radially outward protrudes out the 3rd fin, and connects said the 3rd fin, corresponding the 4th fin through some bolt assemblies, holds in order to end socket and said tank body are interlocked;

One through hole is set on first fin, and said through hole upper fixed is provided with a nut, and a bolt is accommodated in said nut activity.

As further improvement of the present invention, said nut and the welding of first fin are fixing.

As further improvement of the present invention, the center of at least one end socket also is provided with people's casement.

As further improvement of the present invention, said patrix and/or counterdie are provided with at least one charging aperture.

Compared with prior art, the invention has the beneficial effects as follows: on first fin of fitting each other and first fin in second fin, a through hole is set, said through hole upper fixed is provided with a nut, and a bolt is accommodated in said nut activity.Through such structure, when this Plastic Rolling Molds demoulding, rotatable bolt, and eject through second fin that bolt will be fitted, thereby improved the efficient of the demoulding, alleviated operating personnel's labour intensity.

Description of drawings

Fig. 1 is the structural representation in a kind of Plastic Rolling Molds one specific embodiment of the present invention;

Fig. 2 is the partial sectional view along A-A line among Fig. 1;

Fig. 3 is the preceding structural representation of the B place demoulding for label among Fig. 1;

Structural representation when Fig. 4 is the demoulding of B place for label among Fig. 1.

The specific embodiment

Below in conjunction with each embodiment shown in the drawings the present invention is elaborated; But should be noted that; These embodiments are not limitation of the present invention; The function that those of ordinary skills do according to these embodiments, method, or structural equivalent transformation or substitute all belong within protection scope of the present invention.

Please join shown in Figure 1ly, Fig. 1 is the structural representation in a kind of Plastic Rolling Molds one specific embodiment of the present invention.In this embodiment, a kind of Plastic Rolling Molds 100, it comprises:

Fasten some semicircular patrix 1 and some semicircular counterdies 2 each other with the tank body 10 that forms inner hollow.This patrix 1 and counterdie 2 radially outward protrude out some first fins 11 and second fin 21 with the parallel axes of tank body 10; And four fin 14 vertical with the axis direction of tank body 10; Connect said first fin 11 and second fin 21 or said the 4th fin 14 through some bolt assemblies 4, hold so that patrix 1 and counterdie 2 are interlocked.Concrete, this first fin 11 and second fin 21 are fitted mutually and are provided with.

Two end sockets 3, it radially outward protrudes out the 3rd fin 31, and connects said the 3rd fin 31, corresponding the 4th fin 14 through some bolt assemblies 4, holds in order to end socket 3 and said tank body 10 are interlocked.Concrete, in this embodiment, the 3rd fin 31 is structure in the form of a ring.

In this embodiment, can connect this first fin 11 and second fin 21 through some bolt assemblies 4, so that being interlocked, patrix 1 and counterdie 2 hold.Simultaneously, connect the 3rd fin 31 and extend into the 4th fin 14, can hold in order to two end sockets 3 and tank body 10 are interlocked through some bolt assemblies 4.

In conjunction with extremely shown in Figure 4 with reference to Fig. 2, in this embodiment, a through hole 110 is set on this first fin 11, these through hole 110 upper fixed are provided with a nut 111.A bolt 112 is accommodated in these nut 111 activities.When this Plastic Rolling Molds 100 needed the demoulding, rotatable bolt 112 ejected second fin 21 of fitting, thereby has improved the efficient of the demoulding.

Concrete, bolt 112 moves down under the support of nut 111, and the lower surface 114 of extend through first fin 11, contacts with the upper surface 211 of second fin 21 then.At last, the upper surface 211 of this second fin 21 against down, first fin 11 is realized separating with second fin 21.Thereby accomplished separating of patrix 1 and counterdie 2.

Preferably, this nut 111 and 11 welding of first fin are fixing.

In this embodiment, the center of this end socket 3 also is provided with people's casement 32, and it connects said end socket 3, and is arranged on the center of end socket 3.This people's casement 32 can form a manhole (not shown) after these Plastic Rolling Molds 100 demouldings.Manhole is setly on the storage tank to be made for the passage that the industry personnel get into storage tank.Concrete, this end socket 3 is circular.

Concrete, this people's casement 32 can connect a ring flange (not shown), so that this end socket 3 is shut.

In this embodiment, this patrix 1 and/or counterdie 2 are provided with at least one charging aperture 33.Can be through this charging aperture 33 to these Plastic Rolling Molds 100 inner toners that add.Simultaneously, also a ring flange (not shown) can be set on charging aperture 33, so that this Plastic Rolling Molds 100 is shut fully.Like this, the resin of molten condition just can be attached on the internal face of this Plastic Rolling Molds 100 after Plastic Rolling Molds 100 rotations or oscillating motion equably.

Through on people's casement 32 and charging aperture 33, ring flange being set, can make this Plastic Rolling Molds 100 form the confined space of a complete closed.

In this embodiment, this patrix 1, counterdie 2 and end socket 3 are through modifier treatment.Modifier treatment can improve the overall mechanical properties of patrix 1, counterdie 2 and end socket 3.

The listed a series of detailed description of preceding text only is specifying to feasibility embodiment of the present invention; They are not in order to restriction protection scope of the present invention, allly do not break away from equivalent embodiment or the change that skill of the present invention spirit done and all should be included within protection scope of the present invention.

To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned example embodiment, and under the situation that does not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore; No matter from which point; All should regard embodiment as exemplary; And be nonrestrictive, scope of the present invention is limited accompanying claims rather than above-mentioned explanation, therefore is intended to the implication of the equivalents that drops on claim and all changes in the scope are included in the present invention.Should any Reference numeral in the claim be regarded as limit related claim.

In addition; Describing according to embodiment though should be appreciated that this specification, is not that each embodiment only comprises an independently technical scheme; This narrating mode of specification only is for clarity sake; Those skilled in the art should make specification as a whole, and the technical scheme among each embodiment also can form other embodiments that it will be appreciated by those skilled in the art that through appropriate combination.

Claims

1. a Plastic Rolling Molds (100), it comprises:

Fasten some semicircular patrix (1) and some semicircular counterdies (2) each other with the tank body (10) that forms inner hollow; Said patrix (1) radially outward protrudes out some first fins (11) parallel with the axis direction of tank body (10) and second fin (21) with counterdie (2); And four fin (14) vertical with the axis direction of tank body (10); Connect said first fin (11) and second fin (21) or said the 4th fin (14) through some bolt assemblies (4), hold so that patrix (1) and counterdie (2) are interlocked;

Two end sockets (3), it radially outward protrudes out the 3rd fin (31), and connects said the 3rd fin (31), corresponding the 4th fin (14) through some bolt assemblies (4), holds in order to end socket (3) and said tank body (10) are interlocked;

It is characterized in that, a through hole (110) is set on first fin (11), said through hole (110) upper fixed is provided with a nut (111), and a bolt (112) is accommodated in said nut (111) activity.

2. Plastic Rolling Molds according to claim 1 (100) is characterized in that, said nut (111) is fixing with first fin (11) welding.

3. Plastic Rolling Molds according to claim 1 (100) is characterized in that, the center of at least one end socket (3) also is provided with people's casement (32).

4. Plastic Rolling Molds according to claim 1 (100) is characterized in that, said patrix (1) and/or counterdie (2) are provided with at least one charging aperture (33).