CN112549598B - Method for manufacturing lifelong mark of rubber conveying belt - Google Patents
Method for manufacturing lifelong mark of rubber conveying belt Download PDFInfo
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- CN112549598B CN112549598B CN202011229466.0A CN202011229466A CN112549598B CN 112549598 B CN112549598 B CN 112549598B CN 202011229466 A CN202011229466 A CN 202011229466A CN 112549598 B CN112549598 B CN 112549598B
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- Prior art keywords
- rubber
- parts
- mark
- green
- conveyer belt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D29/00—Producing belts or bands
- B29D29/06—Conveyor belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C2037/80—Identifying, e.g. coding, dating, marking, numbering
Abstract
The invention discloses a method for manufacturing a lifetime mark of a rubber conveyer belt, which comprises the following steps: step 1, carrying out sheet discharging on the conveyer belt covering rubber to be produced according to the specified requirements, and punching out hollow characters of the marks; step 2, discharging the green rubber material, wherein the thickness of the green rubber material is the same as that of the covering rubber, and punching green rubber solid characters; step 3, filling the green rubber solid characters into the covering rubber mark hollow characters to form complete covering rubber containing green rubber mark characters; and 4, stacking the complete covering rubber containing the green rubber mark font on a conveyer belt framework, molding and vulcanizing. The method improves the contrast ratio by adjusting the formula of the rubber material, makes the contrast ratio more obvious, improves the thickness of the conveyer belt mark, can keep clear and complete in the whole life cycle of the conveyer belt, and ensures the traceability and the propaganda of the product.
Description
Technical Field
The invention belongs to the technical field of manufacturing processes of conveyor belts, and particularly relates to a method for manufacturing a lifelong mark of a rubber conveyor belt, which is suitable for common conveyor belts with steel wire rope cores, EP canvas, NN canvas, CC canvas and the like as frameworks, and is also suitable for rubber surface whole core flame-retardant conveyor belts, steel wire rope core flame-retardant conveyor belts and the like.
Background
The conveyer belt is suitable for the transportation of powdery and blocky materials among various working procedures and working sections, is convenient and quick, has high production efficiency, and is a necessary means for continuously conveying the mass materials in modern mass production.
According to the GB/T5752 conveyor belt Mark regulation: normally, one side of the working surface of the conveyor belt is 50-100mm away from the belt edge, at least one obvious mark (as shown in figure 1) is marked every 25m, and the two sides are alternately marked, so that the following requirements are met:
when the thickness of the covering layer is more than or equal to 2mm, the depth is less than or equal to 1.5 mm;
when the cover layer thickness is <2mm, the depth is 50% of the cover layer thickness;
the width of the mark is as follows: 20-80mm, and the length is not limited.
The current manufacturing method comprises the following steps:
when the thickness of the covering layer is more than or equal to 2mm, a copper or aluminum template with the thickness of 1.5mm is recorded into the template in advance by a corrosion or carving method according to the main information of the conveyer belt to be marked, and the font depth is 1-1.2 mm.
When the thickness of the covering layer is less than 2mm, a copper or aluminum template with the thickness of 1.2mm is recorded into the template in advance by a corrosion or carving method according to the main information of the conveyer belt to be marked, and the font depth is 0.7-1.0 mm.
The template is a reverse character, and a positive character is pressed through subsequent vulcanization.
When the rubber conveyer belt is vulcanized (most of the existing conveyer belt is produced by hot plate mould pressing vulcanization), a belt blank is drawn into a mould cavity, the mark character dies are placed at the positions required by the specification, and are taken out after a period of vulcanization, and then the pressing is repeated according to the required interval.
At present, the adhesive tape industry achieves marking through a mould pressing method. However, as individual enterprises have few or no labels, the fishes and the dragons are mixed in the intense market competition.
In order to protect the own rights and interests of enterprises, related enterprises think of a plurality of methods, but because the depth of the mark font is limited, the mark is easy to identify at the early stage of the use of the conveyer belt, and the mark is difficult to identify or cannot be identified when the middle and later stages of the service life of the conveyer belt, particularly the edge part of the conveyer belt is easy to wear, so that the difficulty is brought to tracing related contents such as conveyer belt manufacturers, batch numbers and the like.
Once a problem occurs, tape supply enterprises tear skins of each other or tape enterprises tear skins of users, especially users with unsound basic ledgers, and after the problem occurs in the tape, only which tape production enterprise supplies goods can be estimated, or all the enterprises supplying the tape are found, so that the phenomenon of tearing skins of each other easily occurs, and the reputation of some enterprises is damaged. Meanwhile, for some steel wire rope core conveying belts with long service lives, the service lives are mostly about 8 years, the longest service life is 15 years, and various account records, field use personnel and management personnel are replaced and mobilized for many times, so that the source conditions are not looked up.
In this regard, it is desirable to achieve lifelong traceability by providing a lifelong mark that is synchronized with or extends the life of the tape in an economical manner.
Disclosure of Invention
The invention aims to provide a method for manufacturing a lifelong mark of a rubber conveying belt, which can improve the contrast of the character style of the mark, make the character style more obvious, keep clear and complete in the whole life cycle of the conveying belt and ensure the traceability and the propaganda of products.
In order to achieve the above purpose, the solution of the invention is:
a method for manufacturing a lifetime mark of a rubber conveyer belt comprises the following steps:
step 1, carrying out sheet discharging on the conveyer belt covering rubber to be produced according to the specified requirements, and punching out hollow characters of the marks;
step 2, discharging the green rubber material, wherein the thickness of the green rubber material is the same as that of the covering rubber, and punching green rubber solid characters;
step 3, filling the green rubber solid characters into the covering rubber mark hollow characters to form complete covering rubber containing green rubber mark characters;
step 4, stacking the complete covering rubber containing the green rubber mark font on a conveyer belt framework, molding and vulcanizing;
in the step 2, the formula of the green rubber material can be correspondingly adjusted according to different types of the applied conveying belts.
In the step 1, the specific method for punching out the hollow character of the mark comprises the following steps: firstly, placing the covering glue of the sheet on a rubber belt blank forming machine, arranging a small-sized press on a blank pressing gluing machine in advance, and punching out hollow characters of the marks at the position specified by a working face by using the press and a punching die at normal temperature.
In the step 3, after the green rubber solid characters are aligned with the rubber covering mark hollow characters, the green rubber solid characters are pressed into corresponding hollow character gaps by using a pneumatic press.
The specific process of the step 4 is as follows:
firstly, planning a spacing distance in advance according to the length of the vulcanizing equipment and a specified spacing range;
then, the complete covering rubber containing the green rubber mark font is piled on the conveyer belt framework and compacted to form a complete belt blank;
finally, the complete belt blank is vulcanized to form the conveyer belt with green rubber mark characters with the same thickness as the covering rubber.
The width of the mark font is 20-80 mm.
After the scheme is adopted, the invention has the following improvements:
(1) the thickness of the working surface of the conveyer belt covering rubber is generally 3-10mm, the service life of the conveyer belt represents the service life of the conveyer belt, the thickness of the mark of the conveyer belt is 0.7-1.5mm, a small amount of facilities are invested on the basis of the existing equipment, the thickness of the mark is adjusted to be the same as the thickness of the working surface, the mark is not lost due to slight abrasion, and the performance and the use of a product are not influenced;
(2) the color of the mark is adjusted to green from the original same color (generally black) with the covering glue, so that the color contrast of the mark and the covering layer is improved, the mark is convenient to find in time, and the propaganda strength of the conveyor belt real object is improved.
Compared with the prior art, the invention improves the thickness (or called depth) of the conveyer belt mark, simultaneously improves the contrast ratio, makes the conveyer belt mark more obvious, keeps clear and complete in the whole life cycle of the conveyer belt, and ensures the traceability and the propaganda of the product.
Drawings
FIG. 1 is a schematic illustration of a conveyor belt with a flag;
wherein 5000 represents the nominal breaking strength of the adhesive tape, and the unit is N/mm; s represents that the adhesive tape has flame retardance and conductivity under the condition of having or not having a covering layer; 20 denotes the production year of the tape, 20 denotes 2020, and 21 denotes 2021; XXXXXX represents a manufacturing enterprise; 888888 indicates the number of the adhesive tape in the current year of the manufacturing enterprise, and the number is not limited;
FIG. 2 is a schematic view of a conveyor belt constructed according to the method of the present invention;
fig. 3 is a flow chart of the present invention.
Detailed Description
The technical solution and the advantages of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 3, the invention provides a method for manufacturing a lifetime mark of a rubber conveyer belt, which comprises the following steps:
step 1, conveying a working surface of a belt: making the mark on one side of the working surface of the conveyer belt according to the specification, and taking out the sheet according to the requirement of a client to form the sheet with the specified thickness and width;
step 2, hollow characters: spreading the covering film on the adhesive tape blank forming machine together with lining cloth, and arranging a small-sized press on the edge-pressing gluing machine, wherein the panel size of the small-sized press is 100 × 200mm2Pressurizing through a cylinder;
step 3, punching out the hollow mark characters at the specified position of the working surface by using tools such as a press, a die and the like at normal temperature;
step 4, covering green rubber solid characters with the same thickness with rubber: the green rubber compound is produced into the same thickness size of a working face, and the required green rubber solid characters are punched at normal temperature by using another small-sized press arranged near the adhesive tape forming machine and a matched die;
step 5, after punching the green rubber solid characters, temporarily keeping the green rubber solid characters in a punching die, after punching the hollow characters, aligning the hollow characters, and pressing the green rubber solid characters into corresponding hollow character gaps one by one under the action of a pneumatic press so as to ensure that the working surface is completely covered with rubber without shortage or excess of materials; as shown in fig. 2;
step 6, other steps: molding and vulcanizing the adhesive tape according to the original process; the method specifically comprises the following steps:
firstly, planning a spacing distance in advance according to the length of actual vulcanization equipment of an enterprise and a specified spacing range;
then, the complete covering rubber containing the green rubber mark font is piled on the conveyer belt framework according to the original process, and is compacted to form a complete belt blank;
finally, vulcanizing according to the original process to form the conveyer belt containing green rubber mark characters with the same thickness as the covering rubber.
During manufacturing, the size of the mark is within the range of 20-80mm of the specified width, and the mark is designed to be as large as possible so as to facilitate the setting of the mark in the scheme.
When the green rubber material is prepared, on the basis of the formula of the covering rubber, partial materials are adjusted, on the premise of ensuring the performances of strength, elongation, abrasion and the like and having better adhesive performance with the covering rubber and the framework layer, the carbon black is adjusted to be white carbon black, and the white carbon black and the framework layer are matched with each other to form the green rubber material. For example, the general purpose conveyer belt (wire rope core, EP canvas, NN canvas, CC canvas are skeleton) cover rubber and green mark rubber formulation are as follows:
TABLE 1
Table 2 shows the formulations of the rubber-faced whole-core flame-retardant conveyor belt cover rubber and the corresponding green-marking rubber:
TABLE 2
Table 3 is the formulation of the steel cord core flame retardant conveyor belt cover rubber and the corresponding green marking rubber:
TABLE 3
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.
Claims (4)
1. A method for manufacturing a lifetime mark of a rubber conveyer belt is characterized by comprising the following steps:
step 1, carrying out sheet discharging on the conveyer belt covering rubber to be produced according to the specified requirements, and punching out hollow characters of the marks;
step 2, discharging the green rubber material, wherein the thickness of the green rubber material is the same as that of the covering rubber, and punching green rubber solid characters;
step 3, filling the green rubber solid characters into the covering rubber mark hollow characters to form complete covering rubber containing green rubber mark characters;
step 4, stacking the complete covering rubber containing the green rubber mark font on a conveyer belt framework, molding and vulcanizing;
when the conveyer belt takes a steel wire rope core, EP canvas, NN canvas or CC canvas as a framework, the formula of the green rubber material in the step 2 comprises the following components in percentage by mass:
no. 3 natural smoked sheet rubber, 25-35;
25-35 parts of styrene butadiene rubber;
30-50 parts of butadiene rubber;
600 meshes of sulfur powder, 1.7 to 2.1;
99% zinc oxide, 5-6;
1-1.5 parts of secondary stearic acid;
0.7-1.1 of accelerant NOBS;
1.5-2 parts of anti-aging agent 4010 NA;
1.5-2 parts of anti-aging agent RD;
0.5-1 part of anti-aging agent 4020;
0.6-1 parts of protective wax;
white carbon black, 50-55;
2.5-3.5 parts of rubber green;
3-5 parts of acid-base neutralizing agent;
aromatic oil, 2-5;
when the conveyor belt is a rubber surface whole core flame-retardant conveyor belt, the formula of the green rubber material in the step 2 comprises the following components in percentage by mass:
nitrile rubber, 100;
2-2.3 parts of sulfur;
promoter TMTM, 0.3-0.6;
0.5-1 of accelerator DM;
3-5 parts of zinc oxide;
stearic acid, 0.6-1.5;
1.5-2 parts of anti-aging agent 4010 NA;
1-1.5 of anti-aging agent RD;
0.5-0.8 parts of anti-aging agent 4020;
0.6-1 parts of microcrystalline paraffin;
40-50 parts of white carbon black;
2.5-3.5 parts of rubber green;
3-5 parts of acid-base neutralizing agent;
5-10 parts of antimony trioxide;
20-25 parts of decabromodiphenyl ether;
8-12 parts of ammonium polyphosphate;
20-25% of chlorinated paraffin;
8-15 parts of hydrated zinc borate;
25-30 parts of aluminum hydroxide;
4-10 parts of liquid flame retardant;
when the conveyer belt is a steel wire rope core flame-retardant conveyer belt, the formula of the green rubber material in the step 2 comprises the following components in percentage by mass:
35-45 parts of natural gum;
15-20 parts of neoprene adhesive;
30-40 parts of butadiene rubber;
10-20 parts of chlorinated polyethylene;
1.3-1.8 parts of sulfur;
3-5 parts of zinc oxide;
3-5 parts of magnesium oxide;
stearic acid, 0.6-1.5;
0.5-1 of accelerator DM;
1.5-2 parts of anti-aging agent 4010 NA;
1-1.5 of anti-aging agent RD;
0.5-0.8 parts of anti-aging agent 4020;
protective agent 652, 0.6-1;
40-50 parts of white carbon black;
2.5-3.5 parts of rubber green;
3-5 parts of acid-base neutralizing agent;
5-10 parts of antimony trioxide;
20-25% of chlorinated paraffin;
8-15 parts of hydrated zinc borate;
25-30 parts of aluminum hydroxide;
the width of the mark font is 20-80 mm.
2. The method for making a lifetime logo for a rubber conveyor belt according to claim 1, wherein the method comprises the following steps: in the step 1, the specific method for punching out the hollow character of the mark comprises the following steps: firstly, placing the covering glue of the sheet on a rubber belt blank forming machine, arranging a small-sized press on a blank pressing gluing machine in advance, and punching out hollow characters of the marks at the position specified by a working face by using the press and a punching die at normal temperature.
3. The method for making a lifetime logo for a rubber conveyor belt according to claim 1, wherein the method comprises the following steps: in the step 3, after the green rubber solid characters are aligned with the rubber covering mark hollow characters, the green rubber solid characters are pressed into corresponding hollow character gaps by using a pneumatic press.
4. The method for making a lifetime logo for a rubber conveyor belt according to claim 1, wherein the method comprises the following steps: the specific process of the step 4 is as follows:
firstly, planning a spacing distance in advance according to the length of the vulcanizing equipment and a specified spacing range;
then, the complete covering rubber containing the green rubber mark font is piled on the conveyer belt framework and compacted to form a complete belt blank;
finally, the complete belt blank is vulcanized to form the conveyer belt with green rubber mark characters with the same thickness as the covering rubber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011229466.0A CN112549598B (en) | 2020-11-06 | 2020-11-06 | Method for manufacturing lifelong mark of rubber conveying belt |
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| CN202011229466.0A CN112549598B (en) | 2020-11-06 | 2020-11-06 | Method for manufacturing lifelong mark of rubber conveying belt |
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| CN112549598B true CN112549598B (en) | 2022-04-22 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4128664C1 (en) * | 1991-08-29 | 1992-10-29 | Promotex Werbetechnik Gmbh, 4030 Ratingen, De | |
| JPH08281828A (en) * | 1995-04-18 | 1996-10-29 | Bando Chem Ind Ltd | Manufacture of transmission belt |
| CN1692238A (en) * | 2002-07-03 | 2005-11-02 | 盖茨公司 | Belt and method of marking |
| CN104985802A (en) * | 2015-07-24 | 2015-10-21 | 河北昊德橡塑有限公司 | Chevron conveyor belt manufacturing device and manufacturing method |
| CN204773559U (en) * | 2015-07-24 | 2015-11-18 | 河北昊德橡塑有限公司 | Ribbed conveyor belt and preparation facilities thereof |
| CN105150568A (en) * | 2015-08-27 | 2015-12-16 | 李伦锦 | Traceless mark rubber conveyor belt, manufacturing method and mark blank processing equipment |
| EP2962839A1 (en) * | 2013-02-27 | 2016-01-06 | Bridgestone Corporation | Method for manufacturing conveyor belt with ends, method for splicing conveyor belts with ends, method for manufacturing endless conveyor belt and conveyor belt device |
| CN210025473U (en) * | 2019-03-14 | 2020-02-07 | 王运斌 | Automatic rubber cutting machine for online code spraying |
| CN111716780A (en) * | 2020-06-12 | 2020-09-29 | 杭州西奥电梯有限公司 | Production equipment and process and elevator traction belt produced by production equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4118137C1 (en) * | 1991-06-03 | 1992-06-04 | Promotex Werbetechnik Gmbh, 4030 Ratingen, De | Elastomeric imprinted advancing belt prodn. - comprises applying cut=outs to additional belt to form markings or writings, then fixing belt onto main belt |
| DE4139524A1 (en) * | 1991-10-18 | 1993-06-09 | Fa. Ernst Siegling, 3000 Hannover, De | Conveyor belt or driving belt with precisely controlled movements - comprises plastic belt with a strip of plastic welded on contg. magnetic particles to act as a markers for control processes |
| CN1707565A (en) * | 2004-11-12 | 2005-12-14 | 大连宝邦贸易有限公司 | Identification marking |
| CN201816388U (en) * | 2010-09-03 | 2011-05-04 | 李勇 | Device for typewriting on tread of cover tyre of motorcycle |
| TW201601799A (en) * | 2014-07-03 | 2016-01-16 | Perseidas Entpr Co Ltd | Bumper plate with labels showing different colors and manufacturing method thereof |
-
2020
- 2020-11-06 CN CN202011229466.0A patent/CN112549598B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4128664C1 (en) * | 1991-08-29 | 1992-10-29 | Promotex Werbetechnik Gmbh, 4030 Ratingen, De | |
| JPH08281828A (en) * | 1995-04-18 | 1996-10-29 | Bando Chem Ind Ltd | Manufacture of transmission belt |
| CN1692238A (en) * | 2002-07-03 | 2005-11-02 | 盖茨公司 | Belt and method of marking |
| EP2962839A1 (en) * | 2013-02-27 | 2016-01-06 | Bridgestone Corporation | Method for manufacturing conveyor belt with ends, method for splicing conveyor belts with ends, method for manufacturing endless conveyor belt and conveyor belt device |
| CN104985802A (en) * | 2015-07-24 | 2015-10-21 | 河北昊德橡塑有限公司 | Chevron conveyor belt manufacturing device and manufacturing method |
| CN204773559U (en) * | 2015-07-24 | 2015-11-18 | 河北昊德橡塑有限公司 | Ribbed conveyor belt and preparation facilities thereof |
| CN105150568A (en) * | 2015-08-27 | 2015-12-16 | 李伦锦 | Traceless mark rubber conveyor belt, manufacturing method and mark blank processing equipment |
| CN108215256A (en) * | 2015-08-27 | 2018-06-29 | 赵令臣 | Indicate blank process equipment |
| CN210025473U (en) * | 2019-03-14 | 2020-02-07 | 王运斌 | Automatic rubber cutting machine for online code spraying |
| CN111716780A (en) * | 2020-06-12 | 2020-09-29 | 杭州西奥电梯有限公司 | Production equipment and process and elevator traction belt produced by production equipment |
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