CN203305469U

CN203305469U - A rubber roller mold

Info

Publication number: CN203305469U
Application number: CN2013202038254U
Authority: CN
Inventors: 李建锋; 刘世菊
Original assignee: Zhongshan Heyao Polymer Materials Co ltd
Current assignee: Zhongshan Chongtian Hardware Product Co Ltd
Priority date: 2013-04-19
Filing date: 2013-04-19
Publication date: 2013-11-27
Anticipated expiration: 2023-04-19

Abstract

The utility model discloses a rubber roller mold, which is characterized in that it comprises an upper mold, a bottom mold and an inner mold, the upper mold comprises an upper mold box, an upper module is arranged in the upper mold box, and an upper semicircular groove is arranged in the upper module; the bottom mold comprises a bottom mold box, a bottom module is arranged in the bottom mold box, and a bottom semicircular groove is arranged in the bottom module, and after the upper mold and the bottom mold are molded together, the upper semicircular groove and the bottom semicircular groove form a first cylindrical cavity, the inner mold is a round tube, and is located in the first cylindrical cavity, and can be straightened by the first cylindrical cavity.

Description

A kind of rubber rollers mould

Technical field

The utility model relates to a kind of mould, particularly a kind of rubber rollers mould.

Background technology

At present, the manufacture craft of rubber rollers generally is divided into two kinds, and a kind of is two die sinking methods, and another kind is that integral body goes out modulus method.

The method of two die sinking methods is: mould (as shown in Figure 2) is divided into upper and lower two semicircular die cavities, during work, first puts into the axle core, then matched moulds, injecting glue, sulfuration, die sinking take out product.The advantage of this method is that mould structure is simple, easily processing, the concentricity of axle core and rubber cylindrical is higher, shortcoming is due to the bad mold joint that has two moulds to cause, therefore product must carry out secondary operations, such as upper grinding machine etc., we know that the cutting of rubber is very unmanageable, therefore cost is very high, and cutting rear surface roughness also difficulty lower, even if cutting is also had any different with other position in physical property and other aspect of performance later in the bad mold joint position simultaneously, thereby affects performance.

The method that integral body goes out modulus method requires very high to mould (as shown in Figure 3), generally only for the rubber product of liquid state perfusion type, at first will process a columniform die cavity, also has two assembly heads to pack in die cavity, for fixedly passing the metal shaft core of die cavity.The axle core during work, first pack in die cavity, and two ends fix the axle core with assembly head, and then product is taken out in injecting glue, sulfuration again.We can find out that columniform die cavity has born main power thus, so the wall thickness of die cavity is generally very thick, and more than 5mm, material is generally selected rigidity steel preferably, and the moulding of die cavity generally adopts the methods such as grinding machine mill and Wire EDM to make.Therefore we can find out, this processing mode all can have large, the middle little defect in two ends, if the degree of depth in hole is too dark, substantially just have no idea to reprocess, if in fact the degree of depth in hole just is difficult to process over 300mm is long, therefore also limit its some application, even after the whole depanning of product, because the concentricity of product is difficult to guarantee in 0.05mm, add foregoing conicity problem, generally can go up grinding machine yet and cut correction, but this method does not have the problem of bad mold joint.

The utility model content

In order to overcome the deficiencies in the prior art, the utility model provides a kind of can produce that fineness is good, circularity is good, the mould of the good rubber rollers of linearity.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of rubber rollers mould is characterized in that: comprise patrix, bed die and internal mold, this patrix comprises diaphragm capsule, is provided with upper module in upper diaphragm capsule, in upper module, is provided with upper half-round slot; This bed die comprises the bed die box, in the bed die box, is provided with the bed die piece, in the bed die piece, is provided with end half slot, and after patrix and bed die matched moulds, upper half-round slot and end half slot form one first cylindrical cavity, described internal mold is a pipe, and is positioned at the first cylindrical cavity, and can pass through this first cylindrical cavity alignment.

Described upper module comprises on some first to be inserted, and this is inserted on first and is provided with the first half slot, and described upper half-round slot consists of the first half slot; Described bed die piece comprises that some first ends insert, and inserts and be provided with the second half slot in this first end, and half slot of the described end consists of the second half slot.

In described upper module, relatively be provided with the 3rd half slot, described upper half-round slot two ends are communicated with the 3rd corresponding half slot, in described bed die piece, relatively be provided with the 4th half slot, half slot two ends, the described end are communicated with corresponding the 4th half slot, and the 3rd half slot and corresponding the 4th half slot formation one second cylindrical cavity after patrix and bed die matched moulds.

Described upper module comprises on two second to be inserted, on described the 3rd half slot is arranged on second and inserts; Described bed die piece comprises that two second ends inserted, and described the 4th half slot is arranged on second end inserted.

Described internal mold is the cold-drawn hollow circular-tube.

The relation of the diameter D of described upper half-round slot or end half slot and the external diameter H of described internal mold meets 0≤D-H≤0.2mm.

The concentricity of described the first cylindrical cavity and the second cylindrical cavity is less than 0.1mm.

The inner circle of described internal mold and the concentricity of cylindrical are less than 0.1mm.

The wall thickness 0.5-20mm of described internal mold.

The beneficial effects of the utility model are: the mode that the utility model adopts patrix, bed die and internal mold to combine is made rubber rollers, so difficulty of processing is low, and product is not used the grinding machine cutting can guarantee product concentricity and circularity again.Mould structure is simple, and cost is low, uses this mould production efficiency high, and the processing of applicable lengthy product, and all physical sizes can guarantee fine.

The accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is dispersed structure figure of the present utility model;

Fig. 2 is that two traditional die sinking legal systems are made the mould that rubber rollers adopts;

Fig. 3 is that traditional whole depanning legal system is made the mould that rubber rollers adopts;

Fig. 4 is the three-dimensional view of inserting on first;

Fig. 5 is the three-dimensional view of inserting on second.

The specific embodiment

With reference to Fig. 1, Fig. 4 and Fig. 5, the utility model discloses a kind of rubber rollers mould, comprise patrix 1, bed die 2 and internal mold 3, this patrix 1 comprises rectangular upper diaphragm capsule 4, in upper diaphragm capsule 4, be provided with upper module, in upper module, be provided with upper half-round slot: this bed die 2 comprises rectangular bed die box 5, in bed die box 5, be provided with the bed die piece, in the bed die piece, be provided with end half slot, and after patrix 1 and bed die 2 matched moulds, upper half-round slot and end half slot form one first cylindrical cavity, internal mold 3 is a pipe, and during matched moulds, be positioned at the first cylindrical cavity, and can pass through this first cylindrical cavity alignment, and after matched moulds, the plastic material melted is by being arranged at the injecting hole 14 on patrix 1 or bed die 2, 15 inject the interior moulding of internal mold 3, thereby the roll body geomery of rubber rollers and precision are all finally directly to be determined by internal mold 3.In upper module, relatively be provided with the 3rd half slot 11, the upper half-round slot two ends are communicated with the 3rd corresponding half slot 11, in the bed die piece, relatively be provided with the 4th half slot 12, half slot two ends, the end are communicated with the 4th corresponding half slot 12, and after patrix 1 and bed die 2 matched moulds, the 3rd half slot 11 forms one second cylindrical cavity with corresponding the 4th half slot 12, specifically, there is respectively the second cylindrical cavity be communicated with it at the first cylindrical cavity two ends, and the first cylindrical cavity is concentric with the second cylindrical cavity, because rubber rollers comprises the cylindrical roll main body on an axle and axle, before injection moulding, axle is to pass internal mold 3, and its two ends are to lay respectively in the second cylindrical cavity, and fix by the second cylindrical cavity, during injection moulding, the plastic material melted is full of the interior formation cylindrical roll of internal mold 3 main body, and axle tightly is rolled in to center.

As shown in the figure, upper module comprises on some first inserts 6, and this is inserted on first and 6 is provided with the first half slot 7, and in this example, having on three first inserts 6 is provided with the first half slot 7, and upper half-round slot consists of the first half slot 7 of inserting on three first on 6, described bed die piece comprises that some first ends insert 8, insert and 8 be provided with the second half slot 9 in this first end, in this example, having three first ends inserts and 8 is provided with the second half slot 9, the second half slot 9 that half slot of the described end was inserted on 8 by three first ends forms, said structure is as the further preferred structure of this structure, because longer for the length of circular groove as existing equipments machining die such as grinding machine or linear cutting equipment, its processing is more difficult, and its machining accuracy can decline to a great extent, thereby, adopt polylith to insert and process respectively the mode that half slot is assembled into a module whole again, half slot can obtain very high machining accuracy, although can produce some slight errors when assembling, but, with the precision of integral body processing half slot, significantly reduce and compare, it is little to whole Accuracy, the first half slot 7 that finally is positioned at patrix 1 still can be very high with the precision that is positioned at the second half slot 9 integral body of bed die 2, thereby the precision of the first cylindrical cavity is also very high, therefore after internal mold 3 is put into the first cylindrical cavity, the relation of the diameter D of upper half-round slot or end half slot and the external diameter H of described internal mold 3 can meet 0≤D-H≤0.2mm, also namely the relation of the external diameter H of the diameter D of the first cylindrical cavity and described internal mold 3 can meet 0≤D-H≤0.2mm, it is the gap of the nearly 0-0.2mm of inwall of internal mold 3 and the first cylindrical cavity, above-mentioned numerical optimization 0.05mm, so neither can assemble difficulty, can be good at internal mold 3 alignments, and has a very high linearity, by very high the first cylindrical cavity of script precision can be when the matched moulds alignment internal mold 3 cylindricals, and very high as the concentricity of the cylindrical of internal mold 3 and inner circle, so also simultaneously with regard to alignment the endoporus of internal mold 3, thereby we have obtained high-precision internal mold 3 inner circles, and length is unrestricted, the surface smoothness of the rubber rollers product that this kind method obtains is fabulous, circularity is good, linearity might as well, cost also reduces greatly.

As shown in the figure, upper module comprises on two second that 10, the three half slots 11 of inserting are arranged on second and inserts on 10; Described bed die piece comprises that two second ends inserted 13, described the 4th half slot 12 was arranged at for second end and inserts on 13, cause the 3rd half slot 11 and the diameter of the 4th half slot 12 and the diameter of the first half slot 7 and the second half slot 9 differ, disposable processing is difficult to, and precision is difficult to guarantee, for the concentricity that guarantees the first cylindrical cavity and the second cylindrical cavity is less than 0.1mm, be preferably less than 0.03 mm, thereby also needing to adopt assembled mode after independent processing, principle is described with the last period.

As the further preferred embodiment of this structure, internal mold 3 is the cold-drawn hollow circular-tube, preferred hollow aluminum pipe, because the inside and outside round good concentricity of the aluminum pipe that this method obtains, tube wall is smooth, and circularity is good, and cost is low, and processing length is also unrestricted.The wall thickness of internal mold 3 can be at 0.5-20mm, for the ease of alignment, its wall thickness can not be too thick, and preferably wall thickness is the pipe fitting of 3mm, in this specific embodiment, internal mold 3 is the hollow aluminum pipes that adopt the cold-drawn mode to obtain, and certainly, above-mentioned material also can be selected steel or copper material, because inside and outside circle good concentricity, the tube wall of drawn tube is smooth, circularity good, thereby when matched moulds in alignment internal mold 3 cylindricals, the accurate endoporus of alignment internal mold 3 simultaneously, thus we have obtained high-precision internal mold 3 inner circles.

Above a kind of rubber rollers mould that the utility model embodiment is provided, be described in detail, applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just be used to helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims

1. a rubber roller mould, is characterized in that: comprise patrix, bottom mold and inner mold, this patrix comprises patrix box, is provided with upper module in the patrix box, is provided with last semicircle groove in the patrix; The mold includes a bottom mold box, a bottom module is arranged in the bottom mold box, a bottom semicircular groove is arranged in the bottom module, and after the upper mold and the bottom mold are closed, the upper semicircular groove and the bottom semicircular groove form a first cylindrical cavity. The mold is a circular tube and is located in the first cylindrical cavity and can be straightened through the first cylindrical cavity.

2. A rubber roller mold according to claim 1, characterized in that: said upper module includes several first upper inserts, said first upper inserts are provided with first semicircular grooves, said upper semicircular grooves It is composed of a first semicircular groove; the bottom module includes several first bottom inserts, and the first bottom insert is provided with a second semicircular groove, and the bottom semicircular groove is formed by the second semicircular groove.

3. A rubber roller mold according to claim 1, characterized in that: a third semicircular groove is oppositely provided in the upper module, both ends of the upper semicircular groove communicate with the corresponding third semicircular groove, the The bottom module is relatively provided with a fourth semicircular groove, the two ends of the bottom semicircular groove communicate with the corresponding fourth semicircular groove, and the third semicircular groove and the corresponding fourth semicircular groove form a first semicircular groove after the upper mold and the bottom mold are closed. Two cylindrical cavities.

4. A rubber roller mold according to claim 3, characterized in that: the upper module includes two second upper inserts, the third semicircular groove is arranged on the second upper inserts; the bottom module It includes two second bottom inserts, and the fourth semicircular groove is arranged on the second bottom inserts.

5. A rubber roller mold according to claim 1, characterized in that: the inner mold is a cold-drawn hollow circular tube.

6. A rubber roller mold according to claim 1, characterized in that: the relationship between the diameter D of the upper semicircular groove or the bottom semicircular groove and the outer diameter H of the inner mold satisfies 0≤D-H≤0.2mm.

7. A rubber roller mold according to claim 3, characterized in that: the concentricity between the first cylindrical cavity and the second cylindrical cavity is less than 0.1mm.

8. A rubber roller mold according to claim 1, characterized in that: the concentricity of the inner circle and the outer circle of the inner mold is less than 0.1mm.

9. A rubber roller mold according to claim 1, characterized in that: the wall thickness of the inner mold is 0.5-20mm.