CN201357559Y

CN201357559Y - Composite rubber extruder head

Info

Publication number: CN201357559Y
Application number: CNU2008201137302U
Authority: CN
Inventors: 邓文忠; 黄发国; 程一祥; 江建平; 王东明
Original assignee: CHINA CHEMICAL GUILIN ENGINEERING Co Ltd
Current assignee: CHINA CHEMICAL GUILIN ENGINEERING Co Ltd
Priority date: 2008-12-30
Filing date: 2008-12-30
Publication date: 2009-12-09
Anticipated expiration: 2018-12-30

Abstract

The utility model discloses a composite rubber extruder head, which comprises an upper die, an upper-middle die, a middle die, a lower-middle die and a lower die, which are installed on a die holder; after the die spotting, a parting surface which is inclined from a feeding inlet to a forming port is arranged between every two adjacent die bodies, and the distance from the end of each parting surface to the central surface of the middle die is respectively 65 to 180 mm, 0 to 120 mm, 0 to 120 mm and 50 to 180 mm; a flow passage cavity which is communicated with the feeding inlet and the forming port is arranged between every two adjacent parting surfaces, and is characterized in that the angle which is formed between each parting surface and the central surface of the middle die is respectively 35 to 50 degrees, 10 to 30 degrees, minus 30 to minus 10 degrees and minus 50 to minus 35 degrees; and the length of the flow passage cavity of each parting surface is respectively 450 to 490 mm, 530 to 570 mm, 530 to 570 mm and 480 to 520 mm. With the best angle of the parting surfaces, under the condition that the rubber is free from being leaked at the work state of the composite rubber extruder head, the tight locking force is reduced, and the self-locking performance is improved, and thereby, the structure of the device is optimized.

Description

Compound rubber extrusion device head

(1) technical field:

The utility model relates to a kind of rubber manufacturing machinery, specifically is a kind of compound rubber extrusion device head design.

(2) background technology:

The four compounded rubber extrusion group is with compound in the machine that the machine of original tire production is fitted outward, the outer combination process of machine changes multiple mode into, make the applying between the various different formulations rubber tightr, satisfy multiple manufacturing technique requirent, optimize the manufacturing process of tire, this equipment is applicable to four compound extruding of radial semifinished part, is one of important process equipment during radial (particularly high-quality tyre) is produced.

Critical component in the said equipment is a four compounded rubber extrusion device head, as the applicant invention " the hydraulic pressure composite machine head of compound multiple elastomeric material extruder (notification number is CN 20102535Y) is the most typical representative.Because tire product is very high to the stability requirement that the anti-leak of die body, rubber flow in extrusion, determine patrix, go up in mould, middle mould, down in the die joint angle and the length of mould and counterdie very crucial.Because of four compounded rubber extrusion device head force-bearing situation complexity, the rigidity and the requirement of strength of composite machine head are higher, in the design of former patent application, owing to lack optimal design, make the die joint angle and the length of patrix, upward middle mould, middle mould, down middle mould and counterdie unreasonable, cause the structure of four compounded rubber extrusion device head huge, the manufacturing and the processing cost that directly influence four compounded rubber extrusion device head rise.

(3) utility model content:

The utility model provides a kind of and has made structure and the more excellent compound rubber extrusion device head of performance through optimal design.

Can realize the compound rubber extrusion device head of above-mentioned purpose, be included in middle mould placed in the middle on the die holder, the upward middle mould of middle mould upper-lower position and down middle mould, go up the patrix of position on the middle mould and the counterdie of down middle mould upper/lower positions, behind the matched moulds, form die joint between adjacent each mould, the direction of die joint by charging aperture to the molding port squint, offer flow passage chamber between each die joint, flow passage chamber is communicated with charging aperture and molding port, at the molding port place, the termination of each die joint and middle mould center line keep spacing, different is when each parts of compound rubber extrusion device head are carried out force analysis, adopted finite element method, the die joint of head die body and flow passage chamber are carried out Computer Simulation under the complex load condition, analyze and design: patrix and the die joint termination and the middle mould median plane spacing that go up between the middle mould are 65mm～180mm, and the die joint between patrix and the upward middle mould and the angle of middle mould median plane are 35 °～50 °; Middle mould and the die joint termination and the middle mould median plane spacing that go up between the middle mould are 0mm～120mm, and middle mould and die joint and the middle mould median plane angle gone up between the middle mould are 10 °～30 °; Die joint termination and middle mould median plane spacing down between mould and the middle mould are 0mm～120mm, and die joint and middle mould median plane angle between down middle mould and the middle mould are-30 °～10 °; Die joint termination and middle mould median plane spacing down between mould and the counterdie are 50mm～180mm, and die joint and middle mould median plane angle between down middle mould and the counterdie are-50 °～-35 °.Above-mentioned basic parameter be defined as each die body of compound rubber extrusion device head and other parts are established design basis.

Through accurate Calculation, the die joint termination and the middle mould median plane optimal spacing that draw between patrix and the upward middle mould are 100mm, and the die joint between patrix and the upward middle mould and the optimum angle of middle mould median plane are 45 °; In mould and go up in die joint termination and middle mould median plane optimal spacing between the mould be 40mm, middle mould and go up in the optimum angle of die joint between the mould and middle mould median plane be 18 to spend; Die joint termination and middle mould median plane optimal spacing down between mould and the middle mould are 10mm, and the die joint between down middle mould and the middle mould and the optimum angle of middle mould median plane are-18 degree; Die joint termination and middle mould median plane optimal spacing down between mould and the counterdie are 80mm, and the die joint between down middle mould and the counterdie and the optimum angle of middle mould median plane are-45 degree.

Reasonably the die joint angular range has determined the length range of suitable flow passage chamber, be that patrix and the length that goes up die joint flow passage chamber between the middle mould are 450mm～490mm, the length of die joint flow passage chamber is 530mm～570mm between middle mould and the upward middle mould, the length of die joint flow passage chamber is 530mm～570mm between middle mould and the down middle mould, and the length of die joint flow passage chamber is 480mm～520mm between counterdie and the down middle mould.

Die joint angle corresponding to above-mentioned optimum, the optimum length of die joint flow passage chamber is decided to be 470mm between patrix and the upward middle mould, the optimum length of die joint flow passage chamber is 550mm between middle mould and the upward middle mould, the optimum length of die joint flow passage chamber is 550mm between middle mould and the down middle mould, and the optimum length of die joint flow passage chamber is 500mm between counterdie and the down middle mould.

Flow passage chamber between described each die joint is to be communicated with the machine barrel of pin extruder by the corresponding crowded material mouth of offering on the die holder.

For easy to connect, each crowded material mouth cover is loaded onto the spacer shell ring flange.

Offer the flowing water passage on the jacket wall of spacer shell ring flange, the high temperature colloid through the spacer shell ring flange is cooled off.

Advantage of the present utility model:

Determining of the die joint optimal angle of the utility model compound rubber extrusion device head guaranteeing that the compound rubber extrusion device head duty do not leak under the situation of glue, reduced coupling mechanism force, and self-locking performance is improved, thereby has optimized device structure.

(4) description of drawings:

Fig. 1 is the structural representation of a kind of embodiment of the utility model.

Figure number sign: 1, patrix; 2, go up middle mould; 3, middle mould; 4, down middle mould; 5, counterdie; 6, die holder; 7, crowded material mouth; 8, spacer shell flange.

(5) specific embodiment:

Being example with 120/250/250/160 type four compounded rubber extrusion group is described the technical scheme of the utility model patent.

As shown in Figure 1, the four compounded rubber extrusion group comprises four compounded rubber extrusion device head, four compounded rubber extrusion device head comprises patrix 1, upward middle mould 2, middle mould 3, down middle mould 4 and counterdie 5, middle mould 3 and the vertical die holder 6 whole extending transverselies that are connected, mould 2 and patrix 1 during middle mould 3 tops are followed successively by, mould 2 and patrix 1 are hinged by last hinge and middle mould 3 in going up, and middle mould 3 belows are followed successively by down middle mould 4 and counterdie 5, and middle counterdie 4 and counterdie 5 are by down hinge and middle mould 3 hinge mutually.

Be illustrated in figure 1 as adjacent die body matched moulds state, between patrix 1 and the last middle mould 2, go up between middle mould 2 and the middle mould 3, between middle mould 3 and the down middle mould 4, form the inclination die joint down between mould 4 and the counterdie 5, incline direction is from the charging aperture of the die body molding port to die body, at the molding port place, patrix 1 and the die joint termination and the middle mould 3 median plane spacings that go up between the middle mould 2 are 100mm, middle mould 3 and the die joint termination and the middle mould 3 median plane spacings that go up between the middle mould 2 are 40mm, die joint termination and middle mould 3 median plane spacings down between mould 4 and the middle mould 3 are 10mm, and die joint termination and middle mould 3 median plane spacings between down middle mould 4 and the counterdie 5 are 80mm.Die joint and middle mould 3 median planes angle at 45 between patrix 1 and the last middle mould 2, in going up between mould 2 and the middle mould 3 die joint become 18 ° of angles with middle mould 3 median planes, in mould 3 with down between the mould 4 die joint become-18 ° of angles with middle mould 3 median planes, under between middle mould 4 and the counterdie 5 die joint become-45 ° of angles with middle mould 3 median planes.The length of die joint flow passage chamber is decided to be 470mm between patrix 1 and the upward middle mould 2, the length of die joint flow passage chamber is 550mm between middle mould 3 and the upward middle mould 2, the length of die joint flow passage chamber is 550mm between middle mould 3 and the down middle mould 4, and the length of die joint flow passage chamber is 500mm between counterdie 5 and the down middle mould 4.

In Fig. 1, convenient in order to satisfy different process requirement and machining, in last, respectively be inlaid with removable runner plate on mould 2, middle mould 3, down middle mould 4, the counterdie 5, in runner plate according to the characteristics of rubber fluid, process different runners, the charging aperture of each flow passage chamber is communicated with the corresponding crowded material mouth of offering 7 on the die holder 6, each crowded material mouth 7 suit spacer shell flange 8, the machine barrel of each spacer shell flange 8 external pin extruder offers the flowing water passage that cools off through wherein high temperature colloid on the jacket wall of each spacer shell flange 8.

Be specially: spacer shell flange 8 diameters that are communicated with flow passage chamber charging aperture between patrix 1, the upward middle mould 2 are ￠ 120mm, the machine barrel of ￠ 120mm spacer shell flange 8 external ￠ 120 pin extruders; With middle mould 3, go up in spacer shell flange 8 diameters that are communicated with of charging aperture between the mould 2 be ￠ 250mm, the machine barrel of ￠ 250mm spacer shell flange 8 external ￠ 250 pin extruders; Spacer shell flange 8 diameters that are communicated with the charging aperture that descends between middle mould 4, the middle mould 3 also are ￠ 250mm, the machine barrel of ￠ 250mm spacer shell flange 8 same external ￠ 250 pin extruders; Spacer shell flange 8 diameters that are communicated with the charging aperture that descends between middle mould 4, the counterdie 5 are ￠ 160mm, the machine barrel of ￠ 160mm spacer shell flange 8 external ￠ 160 pin extruders.

Claims

1, compound rubber extrusion device head, comprise the patrix (1) that is installed on the die holder (6), mould (2) in going up, middle mould (3), mould (4) and counterdie (5) down, behind the matched moulds, form between the adjacent die body by the die joint of charging aperture to the molding port squint, offer the flow passage chamber that is communicated with charging aperture and molding port between each die joint, at the molding port place, the termination of each die joint and middle mould (3) center line keep spacing, it is characterized in that: die joint end points and middle mould (3) centreline spacing between patrix (1) and the last middle mould (2) are 65mm～180mm, and the die joint between patrix (1) and the last middle mould (2) and the angle of middle mould (3) center line are 35 °～50 °; Die joint end points and middle mould (3) centreline spacing between middle mould (3) and the last middle mould (2) are 0mm～120mm, and die joint and middle mould (3) center line angle between middle mould (3) and the last middle mould (2) are 10 °～30 °; Die joint end points and middle mould (3) centreline spacing down between mould (4) and the middle mould (3) are 0mm～120mm, and die joint and middle mould (3) center line angle between down middle mould (4) and the middle mould (3) are-30 °～-10 °; Die joint end points and middle mould (3) centreline spacing down between mould (4) and the counterdie (5) are 50mm～180mm, and die joint and middle mould (3) center line angle between down middle mould (4) and the counterdie (5) are-50 °～-35 °.

2, compound rubber extrusion device head according to claim 1, it is characterized in that: die joint and middle mould (3) center line angle between patrix (1) and the last middle mould (2) are 45 °, die joint and middle mould (3) center line angle between middle mould (3) and the last middle mould (2) are 18 °, die joint and middle mould (3) center line angle down between mould (4) and the middle mould (3) are-18 °, and die joint and middle mould (3) center line angle between down middle mould (4) and the counterdie (5) are-45 °.

3, compound rubber extrusion device head according to claim 2, it is characterized in that: the length of die joint flow passage chamber is 450mm～490mm between patrix (1) and the last middle mould (2), the length of die joint flow passage chamber is 530mm～570mm between middle mould (3) and the last middle mould (2), the length of die joint flow passage chamber is 530mm～570mm between middle mould (3) and the down middle mould (4), and the length of die joint flow passage chamber is 480mm～520mm between counterdie (5) and the down middle mould (4).

4, compound rubber extrusion device head according to claim 3, it is characterized in that: the length of die joint flow passage chamber is 470mm between patrix (1) and the last middle mould (2), the length of die joint flow passage chamber is 550mm between middle mould (3) and the last middle mould (2), the length of die joint flow passage chamber is 550mm between middle mould (3) and the down middle mould (4), and the length of die joint flow passage chamber is 500mm between counterdie (5) and the down middle mould (4).

5, according to any described compound rubber extrusion device head in the claim 1～4, it is characterized in that: the flow passage chamber charging aperture between each die joint is communicated with die holder (6) and goes up the crowded material mouth (7) that correspondence is offered.

6, compound rubber extrusion device head according to claim 5 is characterized in that: the spacer shell flange (8) of the external pin extruder barrel of described each crowded material mouth (7) suit.

7, compound rubber extrusion device head according to claim 6 is characterized in that: offer the flowing water passage that colloid is cooled off on the jacket wall of described each spacer shell flange (8).