CN103213252A - Manufacturing method of rubber roller - Google Patents

Manufacturing method of rubber roller Download PDF

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Publication number
CN103213252A
CN103213252A CN2013101395259A CN201310139525A CN103213252A CN 103213252 A CN103213252 A CN 103213252A CN 2013101395259 A CN2013101395259 A CN 2013101395259A CN 201310139525 A CN201310139525 A CN 201310139525A CN 103213252 A CN103213252 A CN 103213252A
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half slot
internal mold
slot
bed die
preparation
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CN2013101395259A
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CN103213252B (en
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李建锋
刘世菊
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Zhongshan Chongtian Hardware Products Co ltd
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ZHONGSHAN HEYAO POLYMER MATERIALS CO Ltd
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Abstract

The invention discloses a manufacturing method of a rubber roller. The rubber roller is manufactured by adopting a mode of combining an upper mold, a base mold and an inner mold, so that the processing difficulty is low, and a product is not required to be conveyed to a grinding machine for cutting, and the concentricity and the circular degree of the product can be ensured. According to the method, steps are simple, the cost is low, and the production efficiency is good, and also the method is suitable for processing super long products; moreover all physical sizes are very good; and the rubber roller product obtained through the method is extremely good in surface smoothness, and is good in circular degree and straightness, and the cost is greatly lowered.

Description

A kind of preparation method of rubber rollers
Technical field
The present invention relates to the preparation method of a kind of rubber rollers, particularly a kind of rubber rollers.
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 3) is divided into two semicircular die cavities up and down, puts into a core during work earlier, and product is taken out in matched moulds, injecting glue, sulfuration, die sinking again.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 because the bad mold joint that has two moulds to cause, therefore product must carry out secondary operations, for example go up grinding machine etc., we know that the cutting of rubber is very unmanageable, so cost is very high.And cutting rear surface roughness also difficulty lower, even if simultaneously in the bad mold joint position cutting also have any different in physical property and other aspect of performance later with other position, thereby influence performance.
The method that integral body goes out modulus method is very high to mould (as shown in Figure 4) requirement, generally only is used for the rubber product of liquid perfusion type, at first will process a columniform die cavity, in two assembly heads are packed die cavity in addition, is used for fixing the metal shaft core that passes die cavity.A core pack during work earlier in die cavity, and two ends fix a core with assembly head, and product is taken out in injecting glue, sulfuration more then.Our columniform as can be seen 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 the better rigidity steel for use, and the moulding of die cavity generally adopts methods such as bistrique mill and Wire EDM to make.So we as can be seen, this processing mode all can have big, the middle little defective 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 above 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.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of preparation method of new rubber rollers.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of preparation method of rubber rollers is characterized in that: comprise
Step 1, processing mold and preparation material, mould comprises patrix, bed die and internal mold, this patrix comprises diaphragm capsule, be provided with upper module in the last diaphragm capsule, the 3rd half slot that is provided with upper half-round slot in the upper module and is oppositely arranged, this bed die comprises the bed die box, be provided with the bed die piece in the bed die box, the 4th half slot that is provided with end half slot in the bed die piece and is oppositely arranged, and upper half-round slot and end half slot constitute first cylindrical cavity behind patrix and the bed die matched moulds, and described internal mold is a pipe, and are positioned at first cylindrical cavity, and can pass through this first cylindrical cavity alignment, described upper half-round slot two ends and corresponding the 3rd half slot are communicated with, half slot two ends, the described end and corresponding the 4th half slot connection, and the 3rd half slot and corresponding the 4th half slot constitute second cylindrical cavity behind patrix and the bed die matched moulds; Described material comprises the metal shaft core of glue class raw material and preliminary dimension,
Step 2 is passed internal mold with the metal shaft core, again metal shaft core and internal mold is put into patrix or bed die, and the 3rd half slot is passed through at the two ends of metal shaft core or the 4th half slot is located, and internal mold is located by upper half-round slot or end half slot,
Step 3, matched moulds is injected into the glue class raw material that the melts glue feeding opening by mould in the internal mold, and wraps the metal shaft core,
Step 4, with the rubber full cure in the mould,
Step 5, the die sinking cooling,
Step 6, the demoulding.
After the described step 6 also in steps 7, rubber roll is sprayed.
The mode of the demoulding is cut internal mold for the mode that adopts machinery or laser cutting and is taken out product in the described step 6.
Described upper module comprises on some first to be inserted, and this is inserted on first and is provided with first half slot, and described upper half-round slot is made of first half slot; Described bed die piece comprises that some first ends insert, and inserts and be provided with second half slot in this first end, and half slot of the described end is made of second half slot.
Described upper module comprises on two second to be inserted, on described the 3rd half slot is arranged at and inserts on second; 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 satisfies 0≤D-H≤0.2mm.
The concentricity of described first cylindrical cavity and second cylindrical cavity is less than 0.1mm.
The interior 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 invention has the beneficial effects as follows: the mode that the present invention 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 just can guarantee product concentricity and circularity.This method step is simple, and cost is low, the production efficiency height, and the processing of suitable lengthy product, and all physical sizes can guarantee finely, the surface smoothness of the rubber rollers product that obtains by this method is fabulous, circularity is good, linearity, and cost also reduces greatly.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is dispersed structure figure of the present invention;
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 invention discloses a kind of preparation method of rubber rollers, it is characterized in that: comprise step 1, processing mold and preparation material,
Mould comprises patrix 1, bed die 2 and internal mold 3, this patrix 1 comprises the rectangular diaphragm capsule 4 of going up, be provided with upper module in the last diaphragm capsule 4, be provided with upper half-round slot in the upper module: this bed die 2 comprises rectangular bed die box 5, be provided with the bed die piece in the bed die box 5, be provided with end half slot in the bed die piece, and upper half-round slot and end half slot constitute first cylindrical cavity behind patrix 1 and bed die 2 matched moulds, internal mold 3 is a pipe, and be positioned at first cylindrical cavity during matched moulds, and can pass through this first cylindrical cavity alignment, be provided with the 3rd half slot 11 in the upper module relatively, upper half-round slot two ends and corresponding the 3rd half slot 11 connections, be provided with the 4th half slot 12 in the bed die piece relatively, half slot two ends, the end and corresponding the 4th half slot 12 are communicated with, and the 3rd half slot and corresponding the 4th half slot 12 formations second cylindrical cavity behind patrix 1 and bed die 2 matched moulds
Material comprises the metal shaft core of glue class raw material and preliminary dimension, and glue class raw material is by the plant equipment thawing of heating, glue class raw material comprise as, rubber, plastic cement, silica gel and silicon rubber etc.,
Step 2 is passed internal mold 3 with the metal shaft core, again metal shaft core and internal mold 3 is put into patrix 1 or bed die 2, and the 3rd half slot 11 is passed through at the two ends of metal shaft core or the 4th half slot 12 is located, and internal mold 3 is located by upper half-round slot or end half slot,
Step 3, matched moulds, again the plastic material that melts is injected moulding in the internal molds 3 by the injecting hole 14,15 that is arranged on patrix 1 or the bed die 2, and make the glue class raw material of thawing wrap the metal shaft core, thereby the roll body geomery of rubber rollers and precision finally all are directly to be determined by internal mold 3.
Step 4, with the rubber full cure in the mould,
Step 5 is separated patrix 1 to be cooled to normal temperature with bed die 2,
Step 6, the demoulding, internal mold 3 is taken out from patrix 1 or bed die 2, directly from internal mold 3, the rubber rollers of moulding is extracted out, and inner membrance 3 can be reused, but because some reasons, as sticking too tight of rubber roll and internal mold 3, or rubber roll and internal mold 3 have formed tighter tight fit and can not take out, and just need to adopt the mode of machinery or laser cutting to cut internal mold 3 and take out products
Step 7 sprays rubber roll.
As shown in the figure, the structure of this mould specifically, the first cylindrical cavity two ends have second cylindrical cavity that is communicated with it respectively, and first cylindrical cavity is concentric with second cylindrical cavity, because rubber rollers comprises the cylindrical roll main body on an axle and the axle, before the injection moulding, axle is to pass internal mold 3, and its two ends are to lay respectively in second cylindrical cavity, and fix by second cylindrical cavity, during injection moulding, the plastic material of thawing is full of and forms the cylindrical roll main body in the internal mold 3, and the axle core tightly is rolled in the 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 first half slot 7, and in this example, having inserts on three first 6 is provided with first half slot 7, and upper half-round slot is made of first half slot of inserting on three first on 67; Described bed die piece comprises that some first ends insert 8, insert and 8 be provided with second half slot 9 in this first end, in this example, having three first ends inserts and 8 is provided with second half slot 9, second half slot 9 that half slot of the described end was inserted on 8 by three first ends constitutes, said structure is as the further preferred structure of this structure, because it is long more for the length of circular groove as existing equipments machining die such as grinding machine or linear cutting equipment, its processing is difficult more, and its machining accuracy can decline to a great extent, thereby, adopt polylith to insert and process the mode that half slot is assembled into a module whole more respectively, half slot can obtain very high machining accuracy, though when assembling, can produce some slight errors, but, significantly reduce with the precision of integral body processing half slot and to compare, its precision influence to integral body is little, first half slot 7 that finally is positioned at patrix 1 still can be very high with the precision that is positioned at second half slot, 9 integral body of bed die 2, thereby the precision of first cylindrical cavity is also very high, therefore after internal mold 3 is put into 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 satisfy 0≤D-H≤0.2mm, also promptly the relation of the external diameter H of the diameter D of first cylindrical cavity and described internal mold 3 can satisfy 0≤D-H≤0.2mm, it is the gap of the nearly 0-0.2mm of inwall of the internal mold 3 and first cylindrical cavity, the preferred 0.05mm of above-mentioned numerical value, so neither can assemble difficulty, can be good at again internal mold 3 alignments, and has a very high linearity, by very high first cylindrical cavity of script precision can be when the matched moulds alignment internal mold 3 cylindricals, and it is very high as the concentricity of the cylindrical of internal mold 3 and interior circle, so also simultaneously with regard to alignment the endoporus of internal mold 3, thereby we have obtained circle in the high-precision internal mold 3, and length is unrestricted, the surface smoothness of the rubber rollers product that this kind method obtains is fabulous, circularity is good, linearity, cost also reduce greatly.
As shown in the figure, upper module comprises that 10, the three half slots 11 of inserting on two second are arranged at and inserts on second 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 first half slot 7 and second half slot 9 differ, disposable processing is difficult to, and precision is difficult to guarantee, for the concentricity that guarantees first cylindrical cavity and second cylindrical cavity is less than 0.1mm, is preferably less than 0.03 mm, thereby also needing to adopt independent mode of processing the back assembly unit, 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 preferred 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 for use, because inside and outside circle good concentricity, the tube wall of drawn tube are 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 justifying in the high-precision internal mold 3.
More than to the preparation method of a kind of rubber rollers that the embodiment of the invention provided, be described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (10)

1. the preparation method of a rubber rollers is characterized in that: comprise
Step 1, processing mold and preparation material, mould comprises patrix, bed die and internal mold, this patrix comprises diaphragm capsule, be provided with upper module in the last diaphragm capsule, the 3rd half slot that is provided with upper half-round slot in the upper module and is oppositely arranged, this bed die comprises the bed die box, be provided with the bed die piece in the bed die box, the 4th half slot that is provided with end half slot in the bed die piece and is oppositely arranged, and upper half-round slot and end half slot constitute first cylindrical cavity behind patrix and the bed die matched moulds, and described internal mold is a pipe, and are positioned at first cylindrical cavity, and can pass through this first cylindrical cavity alignment, described upper half-round slot two ends and corresponding the 3rd half slot are communicated with, half slot two ends, the described end and corresponding the 4th half slot connection, and the 3rd half slot and corresponding the 4th half slot constitute second cylindrical cavity behind patrix and the bed die matched moulds; Described material comprises the metal shaft core of glue class raw material and preliminary dimension,
Step 2 is passed internal mold with the metal shaft core, again metal shaft core and internal mold is put into patrix or bed die, and the 3rd half slot is passed through at the two ends of metal shaft core or the 4th half slot is located, and internal mold is located by upper half-round slot or end half slot,
Step 3, matched moulds is injected into the glue class raw material that the melts glue feeding opening by mould in the internal mold, and wraps the metal shaft core,
Step 4, with the rubber full cure in the mould,
Step 5, the die sinking cooling,
Step 6, the demoulding.
2. the preparation method of a kind of rubber rollers according to claim 1 is characterized in that: after the described step 6 also in steps 7, rubber roll is sprayed.
3. the preparation method of a kind of rubber rollers according to claim 1 is characterized in that: the mode of the demoulding is cut internal mold for the mode that adopts machinery or laser cutting and is taken out product in the described step 6.
4. the preparation method of a kind of rubber rollers according to claim 1, it is characterized in that: described upper module comprises on some first to be inserted, and this is inserted on first and is provided with first half slot, and described upper half-round slot is made of first half slot; Described bed die piece comprises that some first ends insert, and inserts and be provided with second half slot in this first end, and half slot of the described end is made of second half slot.
5. the preparation method of a kind of rubber rollers according to claim 1, it is characterized in that: described upper module comprises on two second to be inserted, on described the 3rd half slot is arranged at and inserts on second; Described bed die piece comprises that two second ends inserted, and described the 4th half slot is arranged on second end inserted.
6. the preparation method of a kind of rubber rollers according to claim 1, it is characterized in that: described internal mold is the cold-drawn hollow circular-tube.
7. the preparation method of a kind of rubber rollers according to claim 1, it is characterized in that: 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 satisfies 0≤D-H≤0.2mm.
8. the preparation method of a kind of rubber rollers according to claim 1, it is characterized in that: the concentricity of described first cylindrical cavity and second cylindrical cavity is less than 0.1mm.
9. the preparation method of a kind of rubber rollers according to claim 1, it is characterized in that: the interior circle of described internal mold and the concentricity of cylindrical are less than 0.1mm.
10. the preparation method of a kind of rubber rollers according to claim 1 is characterized in that: the wall thickness 0.5-20mm of described internal mold.
CN201310139525.9A 2013-04-19 2013-04-19 Method for manufacturing rubber roller Active CN103213252B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103465611A (en) * 2013-09-22 2013-12-25 苏州市湘园特种精细化工有限公司 Method for manufacturing plastic rollers
CN104368797A (en) * 2014-11-14 2015-02-25 无锡阳工机械制造有限公司 Method for machining hardware structural component

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07244902A (en) * 1994-03-02 1995-09-19 Sanshin Kogyo Kk Production of tape guide roller
EP1038685A2 (en) * 1995-03-31 2000-09-27 Seiko Epson Corporation Roller-forming mold and method for forming a roller
JP2002079535A (en) * 2000-06-28 2002-03-19 Ricoh Co Ltd Cylindrical molding mold, its production method, and method for producing cylindrical film
CN1278839C (en) * 2003-04-15 2006-10-11 陈贤斌 Forming mould of coated pressure roll

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07244902A (en) * 1994-03-02 1995-09-19 Sanshin Kogyo Kk Production of tape guide roller
EP1038685A2 (en) * 1995-03-31 2000-09-27 Seiko Epson Corporation Roller-forming mold and method for forming a roller
JP2002079535A (en) * 2000-06-28 2002-03-19 Ricoh Co Ltd Cylindrical molding mold, its production method, and method for producing cylindrical film
CN1278839C (en) * 2003-04-15 2006-10-11 陈贤斌 Forming mould of coated pressure roll

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103465611A (en) * 2013-09-22 2013-12-25 苏州市湘园特种精细化工有限公司 Method for manufacturing plastic rollers
CN104368797A (en) * 2014-11-14 2015-02-25 无锡阳工机械制造有限公司 Method for machining hardware structural component

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