CN111646403A - Cap screwing method - Google Patents
Cap screwing method Download PDFInfo
- Publication number
- CN111646403A CN111646403A CN202010693099.3A CN202010693099A CN111646403A CN 111646403 A CN111646403 A CN 111646403A CN 202010693099 A CN202010693099 A CN 202010693099A CN 111646403 A CN111646403 A CN 111646403A
- Authority
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- China
- Prior art keywords
- cap
- cap screwing
- bottle
- bottle body
- head
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B3/00—Closing bottles, jars or similar containers by applying caps
- B67B3/20—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps
- B67B3/2073—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps comprising torque limiting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B3/00—Closing bottles, jars or similar containers by applying caps
- B67B3/26—Applications of control, warning, or safety devices in capping machinery
- B67B3/261—Devices for controlling the tightening of threaded caps, e.g. testing the release torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B3/00—Closing bottles, jars or similar containers by applying caps
- B67B3/26—Applications of control, warning, or safety devices in capping machinery
- B67B3/262—Devices for controlling the caps
- B67B3/264—Devices for controlling the caps positioning of the caps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Jars (AREA)
Abstract
The invention discloses a cap screwing method, which comprises the following steps: s1, conveying the bottle body to a cap screwing station, and clamping the bottle body by a clamping mechanism; s2, the cap screwing head descends to contact the bottle cap, then descends to a first set height continuously, starts cap screwing in a torque mode until a set torque is reached, and stops rotating after the set torque is maintained; s3, the cap screwing head rises to a second set height, and then the torque mode is ended; s4, the cap screwing head continues to rise until the cap screwing head is separated from the bottle cap, the bottle body is loosened by the clamping mechanism, and the bottle body leaves the cap screwing station; s5, circularly performing the steps S1 to S4 to finish the cap screwing of all the bottles. The invention has the advantages of being beneficial to preventing the bottle cap from being scratched and slipping, improving the cap screwing efficiency and the like.
Description
Technical Field
The invention relates to a method for packaging food and medicines, in particular to a method for screwing a cover.
Background
The prior application (CN 110902628A) of the applicant discloses a cap screwing method and a cap screwing device, which effectively solve the problems that the bottle cap is askew or not screwed, and the quality or the appearance of a product is influenced by the damage of threads and grains on the bottle cap due to stress and crushing, and improve the production yield. For a plastic cap bottle, the cap can be screwed only by reaching a certain torque when the cap is screwed, and the cap made of plastic is soft, so that the cap can be easily scratched and slipped by a cap screwing head if a contact surface is not large enough in the cap screwing process.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a cap screwing method which is beneficial to preventing the phenomena of scratching and slipping of a bottle cap and improving cap screwing efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method of capping comprising the steps of:
s1, conveying the bottle body to a cap screwing station, and clamping the bottle body by a clamping mechanism;
s2, the cap screwing head descends to contact the bottle cap, then descends to a first set height continuously, starts cap screwing in a torque mode until a set torque is reached, and stops rotating after the set torque is maintained;
s3, the cap screwing head rises to a second set height, and then the torque mode is ended;
s4, the cap screwing head continues to rise until the cap screwing head is separated from the bottle cap, the bottle body is loosened by the clamping mechanism, and the bottle body leaves the cap screwing station;
s5, circularly performing the steps S1 to S4 to finish the cap screwing of all the bottles.
As a further improvement of the above technical solution: in the step S1, when the bottle body is conveyed to the cap screwing station, the encoder feeds back a first current value to the PLC control module, and the PLC control module controls the clamping mechanism to clamp the bottle body; in step S2, when the capping head descends to the first set height, the encoder feeds back the second current value to the PLC control module; in step S3, when the capping head rises to the second set height, the encoder feeds back the third current value to the PLC control module; in step S4, when the screw cap head is separated from the bottle cap, the encoder feeds back a fourth current value to the PLC control module, and the PLC control module controls the clamping mechanism to loosen the bottle body.
As a further improvement of the above technical solution: from steps S1 to S4, the encoder makes one rotation.
As a further improvement of the above technical solution: if the height of the bottle cap is h, in step S2, the distance between the first set height position and the top of the bottle cap is 2/3 h.
As a further improvement of the above technical solution: if the height of the bottle cap is h, the distance between the second set height position and the top of the bottle cap is 1/3h in step S3.
As a further improvement of the above technical solution: the bottle body conveying and the cap screwing head lifting are controlled by the same cam or servo motor.
Compared with the prior art, the invention has the advantages that: the cap screwing method disclosed by the invention has the advantages that when the cap screwing head contacts the bottle cap, the cap screwing is not immediately carried out, but the cap screwing is continuously lowered to the first set height, so that the contact area between the cap screwing head and the bottle cap is increased, the phenomenon that the bottle cap is slipped and scratched due to the fact that the contact area is too small in the cap screwing process is prevented, the cap screwing is not continuously rotated after the cap screwing process reaches the set torque, the contact area between the cap screwing head and the bottle cap is gradually reduced in the rising process, the cap screwing head is continuously rotated after rising to the second set height in order to prevent the friction torque between the cap screwing head and the bottle cap from being smaller than the set torque of the cap screwing head, the torque mode is timely ended, and the phenomenon that the.
Drawings
FIG. 1 is a schematic flow diagram of the capping method of the present invention.
FIG. 2 is a schematic diagram of the capping method of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples of the specification.
Fig. 1 to 2 show an embodiment of the capping method of the present invention, and the capping method of the present embodiment includes the following steps:
s1, conveying the bottle body to a cap screwing station, and clamping the bottle body by a clamping mechanism;
s2, the cap screwing head descends to contact the bottle cap, then descends to a first set height continuously, starts cap screwing in a torque mode until a set torque is reached, and stops rotating after the set torque is maintained;
s3, the cap screwing head rises to a second set height, and then the torque mode is ended;
s4, the cap screwing head continues to rise until the cap screwing head is separated from the bottle cap, the bottle body is loosened by the clamping mechanism, and the bottle body leaves the cap screwing station;
s5, circularly performing the steps S1 to S4 to finish the cap screwing of all the bottles.
According to the cap screwing method, when the cap screwing head contacts the bottle cap, cap screwing is not carried out immediately, but the cap screwing head continues to descend to a first set height, so that the contact area between the cap screwing head and the bottle cap is increased, the phenomenon that the cap is slipped and scratched due to the fact that the contact area is too small in the cap screwing process is prevented, the cap screwing is not rotated continuously after the torque is set, the contact area between the cap screwing head and the bottle cap is gradually reduced in the rising process, the torque mode is finished in time after the cap screwing head rises to a second set height, the phenomenon that the friction torque between the cap screwing head and the bottle cap is smaller than the set torque of the cap screwing head and the cap screwing is prevented, and the phenomenon that the cap is slipped and.
Further, in this embodiment, in step S1, when the bottle is conveyed to the cap screwing station, the encoder feeds back the first current value to the PLC control module, and the PLC control module controls the clamping mechanism to clamp the bottle; in step S2, when the capping head descends to the first set height, the encoder feeds back the second current value to the PLC control module; in step S3, when the capping head rises to the second set height, the encoder feeds back the third current value to the PLC control module; in step S4, when the screw cap head is separated from the bottle cap, the encoder feeds back a fourth current value to the PLC control module, and the PLC control module controls the clamping mechanism to loosen the bottle body. The encoder is adopted to detect the positions of the cap screwing head and the bottle body, so that the actual contact condition of the cap screwing head and the bottle cap is judged, cap screwing action is carried out, the control precision of the cap screwing method is improved, and the automation and intelligence degree is higher.
Further, in the present embodiment, the encoder rotates one rotation from steps S1 to S4. The encoder rotates a circle to return to the initial position every time the cap screwing is finished, so that the cap screwing process and the encoder detection process are synchronous, the encoder can detect circularly, and the control process is simplified.
In a preferred embodiment, if the height of the cap is h, in step S2, the distance between the first set height position and the top of the cap is 2/3h, and when the cap-screwing head descends to this position, the cap is fully contacted, and the cap will not slip or scratch during the cap-screwing process.
In a preferred embodiment, if the height of the cap is h, the distance between the second set height position and the top of the cap is 1/3h in step S3, and when the cap is lifted to this position, the torque mode should be terminated in time to prevent the cap from slipping or being scratched due to continuous rotation caused by too small contact area with the cap.
As the preferred technical scheme, the conveying of the bottle body and the lifting of the cap screwing head are controlled by the same cam or servo motor, so that the conveying of the bottle body and the lifting of the cap screwing head are carried out in a coordinated mode, and the cap screwing efficiency is improved.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (6)
1. A cap screwing method is characterized in that: the method comprises the following steps:
s1, conveying the bottle body to a cap screwing station, and clamping the bottle body by a clamping mechanism;
s2, the cap screwing head descends to contact the bottle cap, then descends to a first set height continuously, starts cap screwing in a torque mode until a set torque is reached, and stops rotating after the set torque is maintained;
s3, the cap screwing head rises to a second set height, and then the torque mode is ended;
s4, the cap screwing head continues to rise until the cap screwing head is separated from the bottle cap, the bottle body is loosened by the clamping mechanism, and the bottle body leaves the cap screwing station;
s5, circularly performing the steps S1 to S4 to finish the cap screwing of all the bottles.
2. A capping method according to claim 1, wherein: in the step S1, when the bottle body is conveyed to the cap screwing station, the encoder feeds back a first current value to the PLC control module, and the PLC control module controls the clamping mechanism to clamp the bottle body; in step S2, when the capping head descends to the first set height, the encoder feeds back the second current value to the PLC control module; in step S3, when the capping head rises to the second set height, the encoder feeds back the third current value to the PLC control module; in step S4, when the screw cap head is separated from the bottle cap, the encoder feeds back a fourth current value to the PLC control module, and the PLC control module controls the clamping mechanism to loosen the bottle body.
3. A capping method according to claim 2, wherein: from steps S1 to S4, the encoder makes one rotation.
4. A capping method according to claim 1 or 2 or 3, wherein: if the height of the bottle cap is h, in step S2, the distance between the first set height position and the top of the bottle cap is 2/3 h.
5. A capping method according to claim 1 or 2 or 3, wherein: if the height of the bottle cap is h, the distance between the second set height position and the top of the bottle cap is 1/3h in step S3.
6. A capping method according to claim 1 or 2 or 3, wherein: the bottle body conveying and the cap screwing head lifting are controlled by the same cam or servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693099.3A CN111646403B (en) | 2020-07-17 | 2020-07-17 | Cap screwing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693099.3A CN111646403B (en) | 2020-07-17 | 2020-07-17 | Cap screwing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111646403A true CN111646403A (en) | 2020-09-11 |
| CN111646403B CN111646403B (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010693099.3A Active CN111646403B (en) | 2020-07-17 | 2020-07-17 | Cap screwing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111646403B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386399A (en) * | 2008-10-09 | 2009-03-18 | 上海交通大学 | Servo bottle cap screwing mechanism |
| CN103818862A (en) * | 2014-03-19 | 2014-05-28 | 广州丽盈塑料有限公司 | Cap screwing device capable of accurately controlling torsion |
| CN105366609A (en) * | 2015-11-17 | 2016-03-02 | 长春北方化工灌装设备有限公司 | Control method for closing capping machine with torque perceptive function |
| CN206521264U (en) * | 2017-02-15 | 2017-09-26 | 常州汇拓科技有限公司 | A kind of rotary lid mechanism |
| CN206872385U (en) * | 2017-05-12 | 2018-01-12 | 天津市威锐杰机械有限公司 | A kind of servo lifting of Cover whirling Machine and servo spiral cover system |
| CN208166534U (en) * | 2018-05-02 | 2018-11-30 | 江西博君生态农业开发有限公司 | A kind of fruit vinegar Cover whirling Machine device |
| CN209401914U (en) * | 2018-12-14 | 2019-09-17 | 江苏熙霞通信技术有限公司 | A kind of pin connector being easily installed |
| CN209472126U (en) * | 2019-04-23 | 2019-10-08 | 郑华清 | High current connector |
| CN110482455A (en) * | 2019-07-09 | 2019-11-22 | 楚天科技股份有限公司 | A kind of screw capping method based on intelligent decision |
| CN110902628A (en) * | 2019-12-31 | 2020-03-24 | 楚天科技股份有限公司 | Cap screwing method and cap screwing device |
-
2020
- 2020-07-17 CN CN202010693099.3A patent/CN111646403B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386399A (en) * | 2008-10-09 | 2009-03-18 | 上海交通大学 | Servo bottle cap screwing mechanism |
| CN103818862A (en) * | 2014-03-19 | 2014-05-28 | 广州丽盈塑料有限公司 | Cap screwing device capable of accurately controlling torsion |
| CN105366609A (en) * | 2015-11-17 | 2016-03-02 | 长春北方化工灌装设备有限公司 | Control method for closing capping machine with torque perceptive function |
| CN206521264U (en) * | 2017-02-15 | 2017-09-26 | 常州汇拓科技有限公司 | A kind of rotary lid mechanism |
| CN206872385U (en) * | 2017-05-12 | 2018-01-12 | 天津市威锐杰机械有限公司 | A kind of servo lifting of Cover whirling Machine and servo spiral cover system |
| CN208166534U (en) * | 2018-05-02 | 2018-11-30 | 江西博君生态农业开发有限公司 | A kind of fruit vinegar Cover whirling Machine device |
| CN209401914U (en) * | 2018-12-14 | 2019-09-17 | 江苏熙霞通信技术有限公司 | A kind of pin connector being easily installed |
| CN209472126U (en) * | 2019-04-23 | 2019-10-08 | 郑华清 | High current connector |
| CN110482455A (en) * | 2019-07-09 | 2019-11-22 | 楚天科技股份有限公司 | A kind of screw capping method based on intelligent decision |
| CN110902628A (en) * | 2019-12-31 | 2020-03-24 | 楚天科技股份有限公司 | Cap screwing method and cap screwing device |
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| Publication number | Publication date |
|---|---|
| CN111646403B (en) | 2022-05-10 |
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