CN112537899A - Quick forming method for glass bottle in cold start - Google Patents
Quick forming method for glass bottle in cold start Download PDFInfo
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- CN112537899A CN112537899A CN202011304025.2A CN202011304025A CN112537899A CN 112537899 A CN112537899 A CN 112537899A CN 202011304025 A CN202011304025 A CN 202011304025A CN 112537899 A CN112537899 A CN 112537899A
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- timing
- cooling
- normal production
- opening timing
- delayed
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B9/00—Blowing glass; Production of hollow glass articles
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B9/00—Blowing glass; Production of hollow glass articles
- C03B9/30—Details of blowing glass; Use of materials for the moulds
- C03B9/36—Blow heads; Supplying, ejecting or controlling the air
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B9/00—Blowing glass; Production of hollow glass articles
- C03B9/30—Details of blowing glass; Use of materials for the moulds
- C03B9/38—Means for cooling, heating, or insulating glass-blowing machines or for cooling the glass moulded by the machine
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
The invention belongs to the technical field of glass bottle production, and discloses a glass bottle cold start rapid forming method which is used for a row-machine preheating production stage, wherein the forming method comprises positive air blowing, primary mold cooling and molding cooling, and the opening timing of the positive air blowing is delayed by 70-90 units of periodicity from the opening timing in normal production; the starting timing of the primary mold cooling is delayed by 15-25 unit cycle degrees from the starting timing in normal production, and the stopping timing of the primary mold cooling is advanced by 50-70 unit cycle degrees from the stopping timing in normal production; the opening timing of the molding cooling is delayed by 60-80 units of periodicity from the opening timing in normal production; wherein, the periodicity of one unit is alpha, and alpha satisfies the following formula:
Description
Technical Field
The invention belongs to the technical field of glass bottle production, and particularly relates to a method for quickly forming a glass bottle in a cold start mode.
Background
In the process of changing varieties of a row-line machine, the changed molds are basically cold, the conventional machine section timing is not beneficial to the molding of the glass bottles after the machine is started, the molding is often insufficient or individual varieties cannot be molded, the glass bottles are broken and clamped, the normal machine is incapable of normally starting and manufacturing the bottles, a large amount of waste products are generated, the materials are wasted, and the cost is increased.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention aims to provide a method for quickly forming a glass bottle in a cold start mode.
The technical scheme adopted by the invention is as follows:
a glass bottle cold start-up rapid forming method is used for a row machine preheating production stage, and comprises positive air blowing, primary mold cooling and molding cooling, wherein the opening timing of the positive air blowing is delayed by 70-90 unit periodicity from the opening timing in normal production; the starting timing of the primary mold cooling is delayed by 15-25 unit cycle degrees from the starting timing in normal production, and the stopping timing of the primary mold cooling is advanced by 50-70 unit cycle degrees from the stopping timing in normal production; the opening timing of the molding cooling is delayed by 60-80 units of periodicity from the opening timing in normal production;
wherein, the periodicity of one unit is alpha, and alpha satisfies the following formula:
wherein the meaning of each symbol in the formula is as follows:
α: taking the bottle making period of one glass bottle as a circumference, wherein the circumference is 360 degrees, and one degree is the period of one unit;
t: the unit time is 1 minute;
n: the number of die cavities of the row-column machine;
v: the number of glass bottles produced by the row and column machine in unit time.
In an optional technical scheme, the opening timing of the positive blowing air is delayed by 80 units of periodicity from the opening timing in normal production.
In an optional technical scheme, the opening timing of the primary mold cooling is delayed by 20 units of periodicity from the opening timing in normal production, and the stopping timing is advanced by 60 units of periodicity from the stopping timing in normal production.
In an alternative embodiment, the opening timing of the mold cooling is delayed by a period of 70 units from the opening timing in normal production.
In an optional technical scheme, the forming method further comprises bottle conveying cooling, and the cooling air volume of the bottle conveying cooling is reduced compared with the air volume in normal production.
In an optional technical scheme, the row-arranging machine is a double-dripping row-arranging machine.
The invention has the beneficial effects that:
when the variety is changed or the machine is started, because the cold die is arranged on the machine, the forming of the glass bottle is greatly influenced, and the temperature and the ductility of the blank are greatly reduced during forming, so that the forming process is difficult or the bottle is formed to be rotten. Through the adjustment to the time, adopt and delay and shorten the refrigerated switch of primary mould timing parameter, delay the refrigerated opening timing parameter of moulding and postpone the opening timing parameter of just blowing, let the blank of initial shape avoid cooling with higher speed in the primary mould die cavity, keep the blank to have sufficient ductility. After the blank enters the molding space, the delayed positive blowing can ensure that the blank has enough reheating time, the temperature difference distribution of the blank is uniform and the falling time is longer, so that the bottom of the molded bottle has enough thickness to support and is not thin or bottomless. Meanwhile, the delayed primary mold and molding cooling air can enable the mold to quickly absorb the temperature of the blank to quickly raise the temperature of the blank, and the quick molding period is accelerated. The air quantity of the cooling air of the bottle conveying machine is correspondingly reduced, so that the glass bottles which are just discharged can smoothly enter the annealing furnace to be preheated, and the problem that the normal starting of the glass bottles is influenced because the glass bottles are exploded due to too large air of the bottle conveying machine is solved. Therefore, the rapid forming method can greatly reduce the rejection rate in the initial stage of production, reduce the cost and avoid unnecessary material waste.
After the blanking of the machine section is finished successively, the positive blowing time is gradually advanced when the temperature of the die is raised to be close to the normal forming temperature and the glass bottle has obvious bottle bottom thickness after being formed, the cooling air quantity of the primary die and the forming die is gradually increased, the cooling air of the bottle conveying machine is opened to be large, and the parameters of the roundness, the verticality and the like of the glass bottle are ensured to be in a qualified range until the glass bottle is produced normally.
Meanwhile, the calculation formula provided by the technical scheme of the invention can ensure that the forming method can be conveniently adapted when being used for different models or types of ranks, and has good market popularization and application prospects.
Detailed Description
The forming method is used for bottle-making production of a line machine and can be used for line machines of different types. The forming method is mainly suitable for the row-line machine to greatly reduce the rejection rate at the initial stage of production when the variety is changed or the machine is started, reduces the cost and avoids unnecessary material waste. And when the temperature of the mold is raised to be close to the normal molding temperature and the glass bottle has obvious bottle bottom thickness after being molded, gradually advancing the positive blowing time, gradually increasing the cooling air quantity of the primary mold and the molding, and opening the cooling air of the large bottle conveying machine to ensure that the parameters of the roundness, the verticality and the like of the glass bottle are in a qualified range until the glass bottle is normally produced.
Moreover, the calculation formula provided in the technical scheme of the invention can ensure that the forming method can be conveniently adapted when being used for different models or types of line-arranging machines.
The present invention is further illustrated below with reference to specific examples.
Example 1:
the embodiment provides a method for quickly forming a glass bottle in cold start, which is used in a row-column machine preheating production stage, and comprises positive air blowing, primary mold cooling and molding cooling, wherein the opening timing of the positive air blowing is delayed by 70 units from the opening timing in normal production; the starting timing of the primary mold cooling is delayed by 15 units of cycle degrees from the starting timing in normal production, and the stopping timing of the primary mold cooling is advanced by 50 units of cycle degrees from the stopping timing in normal production; the opening timing of the molding cooling is delayed by 60 units of periodicity from the opening timing in normal production; the stop timing of positive blowing and molding cooling is not changed from the stop timing in normal production;
wherein, the periodicity of one unit is alpha, and alpha satisfies the following formula:
wherein the meaning of each symbol in the formula is as follows:
α: taking the bottle making period of one glass bottle as a circumference, wherein the circumference is 360 degrees, and one degree is the period of one unit;
t: the unit time is 1 minute;
n: the number of die cavities of the row-column machine;
v: the number of glass bottles produced by the row and column machine in unit time.
The forming method further comprises bottle conveying cooling, and the cooling air volume of the bottle conveying cooling is reduced compared with the air volume in normal production.
In actual normal production, the opening timing in normal production of positive blowing is 30 cycle degrees, the opening timing of primary mold cooling is 350 cycle degrees, the stop timing of primary mold cooling is 320 cycle degrees, and the opening timing of molding cooling is 40 cycle degrees. After the adjustment, the opening timing in normal production of the positive air blowing is 100 cycle degrees, the opening timing of the primary mold cooling is 5 cycle degrees, the stop timing of the primary mold cooling is 260 cycle degrees, and the opening timing of the molding cooling is 100 cycle degrees.
In the actual production, not only one bottle making period is needed, but a plurality of bottle making periods are needed in one production process, namely, in terms of a single production link, some production links span two bottle making periods, and some production links are only carried out in one bottle making period. Just like the primary mold cooling, it is delayed from 350 cycle degrees at the time of normal production to 10 cycle degrees, that is, the primary cooling is delayed from 350 cycle degrees at the previous production cycle to 10 cycle degrees at the next bottle-making cycle.
Example 2:
the embodiment provides a method for quickly forming a glass bottle in cold start, which is used in a row-column machine preheating production stage, and comprises positive air blowing, primary mold cooling and molding cooling, wherein the opening timing of the positive air blowing is delayed by 80 units of periodicity from the opening timing in normal production; the starting timing of the primary mold cooling is delayed by 20 units of cycle degrees from the starting timing in normal production, and the stopping timing of the primary mold cooling is advanced by 60 units of cycle degrees from the stopping timing in normal production; the opening timing of the molding cooling is delayed by 70 units of periodicity from the opening timing in normal production; the stop timing of the positive blowing and the mold cooling is not changed from the stop timing in the normal production.
Wherein, the periodicity of one unit is alpha, and alpha satisfies the following formula:
wherein the meaning of each symbol in the formula is as follows:
α: taking the bottle making period of one glass bottle as a circumference, wherein the circumference is 360 degrees, and one degree is the period of one unit;
t: the unit time is 1 minute;
n: the number of die cavities of the row-column machine;
v: the number of glass bottles produced by the row and column machine in unit time.
The forming method further comprises bottle conveying cooling, and the cooling air volume of the bottle conveying cooling is reduced compared with the air volume in normal production.
In actual normal production, the opening timing in normal production of positive blowing is 30 cycle degrees, the opening timing of primary mold cooling is 350 cycle degrees, the stop timing of primary mold cooling is 320 cycle degrees, and the opening timing of molding cooling is 40 cycle degrees. After the adjustment, the opening timing during normal production of the positive blowing air is 110 cycle degrees, the opening timing for the primary mold cooling is 10 cycle degrees, the stopping timing for the primary mold cooling is 270 cycle degrees, and the opening timing for the molding cooling is 110 cycle degrees.
In the actual production, not only one bottle making period is needed, but a plurality of bottle making periods are needed in one production process, namely, in terms of a single production link, some production links span two bottle making periods, and some production links are only carried out in one bottle making period. Just like the primary mold cooling, it is delayed from 350 cycle degrees at the time of normal production to 10 cycle degrees, that is, the primary cooling is delayed from 350 cycle degrees at the previous production cycle to 10 cycle degrees at the next bottle-making cycle.
Example 3:
the embodiment provides a method for quickly forming a glass bottle in cold start, which is used in a row-column machine preheating production stage, and comprises positive air blowing, primary mold cooling and molding cooling, wherein the opening timing of the positive air blowing is delayed by 90 units of periodicity from the opening timing in normal production; the starting timing of the primary mold cooling is delayed by 25 units of cycle degrees from the starting timing in normal production, and the stopping timing of the primary mold cooling is advanced by 70 units of cycle degrees from the stopping timing in normal production; the opening timing of the molding cooling is delayed by a cycle degree of 80 units from the opening timing in normal production; the stop timing of the positive blowing and the mold cooling is not changed from the stop timing in the normal production.
Wherein, the periodicity of one unit is alpha, and alpha satisfies the following formula:
wherein the meaning of each symbol in the formula is as follows:
α: taking the bottle making period of one glass bottle as a circumference, wherein the circumference is 360 degrees, and one degree is the period of one unit;
t: the unit time is 1 minute;
n: the number of die cavities of the row-column machine;
v: the number of glass bottles produced by the row and column machine in unit time.
The forming method further comprises bottle conveying cooling, and the cooling air volume of the bottle conveying cooling is reduced compared with the air volume in normal production.
In actual normal production, the opening timing in normal production of positive blowing is 30 cycle degrees, the opening timing of primary mold cooling is 350 cycle degrees, the stop timing of primary mold cooling is 320 cycle degrees, and the opening timing of molding cooling is 40 cycle degrees. After the adjustment, the opening timing in normal production of the positive blowing air is 120 cycle degrees, the opening timing of the primary mold cooling is 15 cycle degrees, the stop timing of the primary mold cooling is 280 cycle degrees, and the opening timing of the molding cooling is 120 cycle degrees.
In the actual production, not only one bottle making period is needed, but a plurality of bottle making periods are needed in one production process, namely, in terms of a single production link, some production links span two bottle making periods, and some production links are only carried out in one bottle making period. Just like the primary mold cooling, it is delayed from 350 cycle degrees at the time of normal production to 10 cycle degrees, that is, the primary cooling is delayed from 350 cycle degrees at the previous production cycle to 10 cycle degrees at the next bottle-making cycle.
When the bottle is replaced or started, because the cold molds are arranged on the machine, the forming of the glass bottle is greatly influenced, and the temperature and the ductility of the blank are greatly reduced during forming, so that the forming process is difficult or the bottle is broken. Through the adjustment of timing in several links in the existing bottle-making process, the initial blank is prevented from being cooled in the initial mold cavity by delaying and shortening the opening timing parameter of initial mold cooling, delaying the opening timing parameter of mold cooling and delaying the opening timing parameter of positive blowing, and the blank is kept to have enough ductility. After the blank enters the molding space, the delayed positive blowing can ensure that the blank has enough reheating time, the temperature difference distribution of the blank is uniform and the falling time is longer, so that the bottom of the molded bottle has enough thickness to support and is not thin or bottomless. Meanwhile, the delayed primary mold and molding cooling air can enable the mold to quickly absorb the temperature of the blank to quickly raise the temperature of the blank, and the quick molding period is accelerated. The air quantity of the cooling air of the bottle conveying machine is correspondingly reduced, so that the glass bottles which are just discharged can smoothly enter the annealing furnace to be preheated, and the problem that the normal starting of the glass bottles is influenced because the glass bottles are exploded due to too large air of the bottle conveying machine is solved. Therefore, the rapid forming method can greatly reduce the rejection rate in the initial stage of production, reduce the cost and avoid unnecessary material waste.
After the blanking of the machine section is finished successively, the positive blowing time is gradually advanced when the temperature of the die is raised to be close to the normal forming temperature and the glass bottle has obvious bottle bottom thickness after being formed, the cooling air quantity of the primary die and the forming die is gradually increased, the cooling air of the bottle conveying machine is opened to be large, and the parameters of the roundness, the verticality and the like of the glass bottle are ensured to be in a qualified range until the glass bottle is produced normally.
The present invention is not limited to the above-described alternative embodiments, and various other forms of products can be obtained by anyone in light of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the claims, and which the description is intended to be interpreted accordingly.
Claims (6)
1. A glass bottle cold start-up rapid forming method is used in a row machine preheating production stage, and comprises positive blowing, primary mold cooling and molding cooling, and is characterized in that:
the opening timing of the positive blowing is delayed by 70-90 unit of periodicity from the opening timing during normal production; the starting timing of the primary mold cooling is delayed by 15-25 unit cycle degrees from the starting timing in normal production, and the stopping timing of the primary mold cooling is advanced by 50-70 unit cycle degrees from the stopping timing in normal production; the opening timing of the molding cooling is delayed by 60-80 units of periodicity from the opening timing in normal production;
wherein, the periodicity of one unit is alpha, and alpha satisfies the following formula:
wherein the meaning of each symbol in the formula is as follows:
α: taking the bottle making period of one glass bottle as a circumference, wherein the circumference is 360 degrees, and one degree is the period of one unit;
t: the unit time is 1 minute;
n: the number of die cavities of the row-column machine;
v: the number of glass bottles produced by the row and column machine in unit time.
2. The method for rapidly forming a glass bottle in a cold start-up state according to claim 1, which is characterized in that: the opening timing of the positive blowing is delayed by a cycle of 80 units from the opening timing in normal production.
3. The method for rapidly forming a glass bottle in a cold start-up state according to claim 1, which is characterized in that: the opening timing of the primary mold cooling is delayed by 20 units of the cycle degree from the opening timing in the normal production, and the stopping timing is advanced by 60 units of the cycle degree from the stopping timing in the normal production.
4. The method for rapidly forming a glass bottle in a cold start-up state according to claim 1, which is characterized in that: the opening timing of the mold cooling is delayed by a cycle of 70 units from the opening timing in normal production.
5. A method for rapidly forming a glass bottle at a cold start according to any one of claims 1 to 4, which is characterized in that: the forming method further comprises bottle conveying cooling, and the cooling air volume of the bottle conveying cooling is reduced compared with the air volume in normal production.
6. The method for rapidly forming a glass bottle in a cold start-up state according to claim 5, wherein: the ranks machine is a double-drop ranks machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011304025.2A CN112537899B (en) | 2020-11-19 | 2020-11-19 | Quick forming method for glass bottle in cold start |
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| CN202011304025.2A CN112537899B (en) | 2020-11-19 | 2020-11-19 | Quick forming method for glass bottle in cold start |
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