CN102601973A

CN102601973A - Water tank shaping block for cooling and shaping plastic-extruded sectional material

Info

Publication number: CN102601973A
Application number: CN2012100853895A
Authority: CN
Inventors: 查安平; 周汉生; 陆跃; 王秀平; 徐瑞
Original assignee: TONGLING GREAT EXTRUSION TECHNOLOGY CO LTD
Current assignee: TONGLING GREAT EXTRUSION TECHNOLOGY CO LTD
Priority date: 2012-03-28
Filing date: 2012-03-28
Publication date: 2012-07-25

Abstract

The invention relates to a water tank shaping block for cooling and shaping a plastic-extruded sectional material. The shaping block is provided with a cavity which is matched with the section of the sectional material in shape; a press roll is arranged above the cavity corresponding to the visible surface of the profile; and the two ends of the press roll are fixed on the shaping block by bearing seats. The press roll is arranged above the visible surface of the sectional material and the visible surface of the sectional material is contacted with the press roll in a rolling way, impurity particles cannot clamp the part between the visible surface of the sectional material and the cavity wall of the shaping block, therefore scratches are prevented from being caused on the visible surface of the sectional material; and in addition, the visible surface of the sectional material can be corrected by selecting appropriate curvature of the surface of the press roll, so that the surface evenness and the appearance quality can be improved.

Description

The water tank shaped block that is used for the extruded plastic profile cooling and shaping

Technical field

This explanation relates to a kind of water tank shaped block that is used for the extruded plastic profile cooling and shaping.

Background technology

Because in process of production, can there be particulate contamination in plastic profiled bar extrusion die in the cooling water in the water tank inevitably, can't thoroughly clean out.These particulate contamination 9 usually can be attached to the surface of section bar 8; Along with the direction of current and the direction of extruding of section bar move, get in the angle between section bar 8 and the water tank shaped block 1 also stuck, as shown in Figure 1; Can cause scuffing to the section bar surface inevitably; The cut that forms on the cut, particularly section bar visible surface on the section bar surface can influence the section material appearance quality, causes defect rate to improve.

Summary of the invention

This illustrative purposes is to the weak point that exists in the prior art, and a kind of water tank shaped block that is used for the extruded plastic profile cooling and shaping is provided, and can avoid cut occurring at cooling procedure medium section visible surface, improves the product appearance quality.

Be to realize above-mentioned purpose, following technical scheme has been adopted in this explanation: have the die cavity with the section material section form fit on the shaped block, above the corresponding die cavity of section bar visible surface, pressure roller is housed, the pressure roller two ends are fixed on the shaped block by bearing block.When section bar was drawn the die cavity of process shaped block, pressure roller rolled with the section bar visible surface and contacts, and the fine particle shape impurity that is adsorbed on the section bar visible surface can or not produce cut to the section bar surface by passing through between pressure roller and the section bar visible surface.

Regulate the gap between pressure roller and the section bar surface for ease, the bearing block adjustable height at pressure roller two ends saves land and is fixed on the shaped block.

Plastic irregular profile because of its inner in muscle can not be in effective time cooling forming fully; Also there is certain deformation behind the section bar water tank; The influence of many factors such as the extruded velocity that how much receives section bar of its deflection, the wall thickness of section bar, the internal structure of section bar, on-the-spot process conditions; Be difficult to eliminate through extrusion die, possibly cause the section bar surface irregularity produced, special the section bar surface as the section bar visible surface 81 of broad occurs to outer lug or inwardly contraction in the cross section; Show like Fig. 2, cause cooled section bar 8 open defect to occur.

In order to overcome the problems referred to above, a priority scheme of this explanation is: said pressure roller diameter is increased to the centre by section bar visible surface two ends gradually, makes roller surface form the curved surface that the section bar visible surface is corrected.Through the rectification curved surface of suitable curvature is set at roller surface, can in cooling, correct the section bar visible surface, proofread and correct the section bar surface smoothness thereby reach, improve its presentation quality.

Can know that by technique scheme this explanation makes the section bar visible surface roll with pressure roller and contacts through above the section bar visible surface of shaped block, pressure roller being set; Impurity particle can be not stuck between the die cavity wall of section bar visible surface and shaped block; Thereby avoid the section bar visible surface is produced cut, select the suitable curvature of roller surface in addition, can also correct the section bar visible surface; Can improve its surface smoothness, improve its presentation quality.

Description of drawings

Fig. 1 cut mechanism sketch map occurs for the section bar surface;

Fig. 2 is a section bar areal deformation sketch map;

Fig. 3 is this description architecture sketch map;

Fig. 4 is along A-A line cutaway view among Fig. 3;

Fig. 5 is along B-B line cutaway view among Fig. 3;

Fig. 6 is along C-C line profile among Fig. 3;

Fig. 7 proofreaies and correct section bar surface smoothness principle schematic for this explanation.

The specific embodiment

Like Fig. 3, Fig. 4 and shown in Figure 5, have the die cavity 2 that cooperates with section bar 8 section configurations on the shaped block 1, what die cavity 2 upper parts 21 were corresponding is the visible surface 81 of section bar 8.Shaped block 1 has pressure roller mounting groove 15 above die cavity upper part 21; Pressure roller mounting groove 15 two ends are provided with bearing block mounting groove 12; Bearing block mounting groove 15 1 sides are provided with the block 11 that fuses with shaped block 1; Opposite side is provided with dismountable postive stop baffle 7, and the rotating shaft 32 at pressure roller 3 two ends is fixed on the bearing block 4 through bearing 5, in the time of in bearing block 4 is positioned over bearing block mounting groove 12; With screw 71 postive stop baffle 7 is fixed on the shaped block 1, can bearing block 4 be fixed in the bearing block mounting groove 12.

Be the convenient gap of regulating between pressure roller 3 and the section bar visible surface 81, shaped block 1 is provided with the adjusting device of regulating shaft bearing 4 height.This adjusting device is an adjusting bolt 6, and shaped block 1 upper end has the through hole 14 that leads to bearing block mounting groove 12, regulate bolt 6 and be threaded with bearing block 4 through through hole 14, and through placing bolt 6, can the height of regulating shaft bearing 4 in bearing block mounting groove 12.

Consider the shaped block more compact structure, through hole 14 lower ends to bearing block mounting groove 12 tops have the lateral slot with bolt 6 form fit, the embedded groove 13 that lateral slot top has nut 61 parts of pair bolt 6 to cooperate; As shown in Figure 5; When mounted, bolt 6 is fixed on earlier on the bearing block 4, together embeds in this lateral slot with bearing block 4 again; Because it is spacing that nut 61 upper and lower sides receive embedded groove 13, coming swivel bolt 6 through through hole 14 is the height of regulating shaft bearing 4.

Pressure roller 3 diameters are increased to the centre by section bar visible surface 81 two ends gradually, make roller surface form the curved surface 31 that the section bar visible surface is corrected.Its Principles of Regulation are as shown in Figure 7, through visible surface 81 pre compressed magnitudes of 31 pairs of section bars 8 of curved surface of control pressure roller 3, the flatness that can correct section bar visible surface 81.

As shown in Figure 6; When section bar 8 is drawn along the direction of arrow during through the die cavity of shaped block 1; Pressure roller 3 and section bar visible surface 81 rolls and contact, is adsorbed on tiny shape granule foreign 9 on the section bar visible surface 81 by passing through between pressure roller 3 and the section bar visible surface 81, can avoid the surperficial generation of section bar cut.

Claims

1. the water tank shaped block that is used for the extruded plastic profile cooling and shaping; Have the die cavity (2) that cooperates with section bar (8) section configuration on the shaped block (1); It is characterized in that: pressure roller (3) is equipped with in die cavity (21) top in that section bar visible surface (81) is corresponding, and pressure roller (3) two ends are fixed on the shaped block (1) by bearing block (4).

2. the water tank shaped block that is used for the extruded plastic profile cooling and shaping according to claim 1 is characterized in that: bearing block (4) adjustable height at pressure roller (3) two ends saves land and is fixed on the shaped block (1).

3. the water tank shaped block that is used for the extruded plastic profile cooling and shaping according to claim 1 and 2; It is characterized in that: said pressure roller (3) diameter is increased to the centre by section bar visible surface (81) two ends gradually, makes roller surface form the curved surface (31) that the section bar visible surface is corrected.