A capping head, a pull ring chute and a capping machine thereof

By improving the capping head and pull ring slide structure of the capping machine, the problem of pull ring cap misalignment during beer filling was solved, resulting in more efficient beer bottle sealing, reduced scrap rate, and extended equipment life.

CN224411351UActive Publication Date: 2026-06-26HANGZHOU CHEERDAY BREWERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU CHEERDAY BREWERY CO LTD
Filing Date
2025-05-19
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the beer filling process, existing capping machines have a time difference between the conveying speed of the pull-tab cap and the beer conveying speed, which makes it difficult for the pull-tab cap to fall accurately on the beer bottle, resulting in bent caps and a high scrap rate.

Method used

A capping head and a pull ring slide are designed. The capping head includes a top rod, a capping head body, a capping neck, a capping cylinder, and a capping horn. It is provided with a countersunk hole, a first guide section, a stepped plastic section, and a second guide section. The pull ring slide has a notch at the end. These structures improve the guidance and positioning of the pull ring cap and reduce deflection.

Benefits of technology

It effectively reduces the probability of bent caps, lowers the scrap rate, extends the service life of the equipment, and improves the reliability of beer bottle sealing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of capping head, ring pull slide and its cap screwing machine, to solve the deficiency that current cap screwing machine is easy to cause press bending cover. The utility model includes material pushing rod and capping head body, capping head body includes capping neck, capping cylinder and capping horn, material pushing rod includes material pushing rod body and material pushing head, the bottom of capping cylinder is equipped with counterbore adapting material pushing head, capping neck and capping cylinder are equipped with inner hole adapting material pushing rod body, along the direction of capping neck to capping horn, the inner diameter of capping horn gradually increases, capping horn includes first guide section, step plastic section and second guide section, each place of first guide section and second guide section is continuously transition, and round corner is equipped between the two step surfaces of step shaping. Material pushing head can completely enter into counterbore, first guide section and second guide section provide more space and more guide to the inclined ring pull cover, drive the ring pull cover of lighter degree of deflection reset, reduce the probability of press bending cover condition.
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Description

Technical Field

[0001] This utility model relates to the field of beverage filling, and more specifically, it relates to a capping head, a pull ring slide, and a capping machine thereof. Background Technology

[0002] The process of filling beer with an automated filling machine includes conveying the filled beer to the bottom of the capping machine, providing the pull-ring cap through the pull-ring track, and then using the capping machine to press the cap onto the bottle neck to complete the sealing of the beer.

[0003] During this process, due to the difference in rhythm between the conveying speed of the pull tab cap and the conveying speed of the beer, as well as the moving speed and pressing speed of the cap, a small number of pull tab caps on beer bottles cannot be properly placed on top of the beer bottle, resulting in the pull tab caps being crushed.

[0004] This application aims to provide a capping head, a pull ring slide, and a capping machine thereof, thereby improving the situation of cap bending. Utility Model Content

[0005] This invention overcomes the shortcomings of existing capping machines that easily cause cap bending and generate waste products. It provides a capping head, a pull ring slide, and a capping machine. By adjusting the structure, it improves upon the existing capping machine, reducing the probability of cap bending and minimizing waste products.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A capping head for a capping machine includes a top rod and a capping head body. The capping head body includes a capping neck, a capping cylinder, and a capping horn. The top rod includes a top rod body and a top head disposed at the end of the top rod body. A connector is provided on the top rod body, and the connector is used to position a spring. The bottom of the capping cylinder is provided with a countersunk hole adapted to the top head. The capping neck and the capping cylinder are provided with inner holes adapted to the top rod body. Along the direction from the capping neck to the capping horn, the inner diameter of the capping horn gradually increases. The capping horn includes a first guide section, a stepped plastic section, and a second guide section. The first guide section and the second guide section are continuously transitioned at each point. A rounded corner is provided between the two stepped surfaces of the stepped plastic section.

[0008] The push rod is used to press the pull tab cap onto the bottle neck. While maintaining the pressure of the push rod on the pull tab cap, external pressure is applied to the capping head body or the beer bottle to drive them to move towards each other. The pull tab cap approaches and enters the capping horn, and is deformed by the shape of the capping horn to reliably seal the beer bottle neck, thus completing the sealing of the beer bottle.

[0009] To mitigate the issue of bent caps, this application incorporates a countersunk hole at the cap cylinder, adapted to the ejector head, allowing the ejector head to fully enter the countersunk hole. Furthermore, the cap flare is equipped with a first guide section, a stepped plastic section, and a second guide section. Both the first and second guide sections guide the pull ring cap, assisting in its repositioning. The ejector head's full entry into the countersunk hole provides greater movement space for the pull ring cap, guiding any misaligned caps and correcting them. This guides pull ring caps with relatively small misalignments to a predetermined position, reducing the probability of bent caps.

[0010] Preferably, the capping neck and capping cylinder are fixedly connected to sliding sleeves at both ends of the inner hole, and the inner diameter of the sliding sleeves is the same as the diameter of the inner hole. The sliding sleeves reduce the friction between the ejector rod and the capping head body, extend the service life of the capping head, and reduce the vibration of the capping head caused by the relative movement of the ejector rod relative to the capping head body.

[0011] Preferably, the outer diameter of the cap neck is smaller than the outer diameter of the cap cylinder, and the cap neck is provided with a cap ring groove, which is connected to the spinning machine.

[0012] Preferably, the connector is a retaining ring, which is detachably connected to the top rod. By adjusting the distance of the connector, the distance between the top rod and the pull ring cover can be controlled, allowing for faster pressing and positioning onto the pull ring cover.

[0013] Preferably, the diameter of the capping head body is 20mm.

[0014] A pull ring slide for a capping machine is disclosed, used to transport pull ring caps. The pull ring slide has a U-shaped notch at its end, the notch being arc-shaped and its width exceeding the diameter of the pull ring cap. This notch at the end of the pull ring slide extends the support time for the pull ring cap, reducing the probability of cap misalignment.

[0015] Preferably, the thickness of the pull tab slide gradually decreases to 1.5 mm at the end. By reducing the thickness of the pull tab slide, the distance between the pull tab cap and the beer bottle cap is reduced, thereby reducing the degree of pull tab cap skew, which can be corrected by the first guide section, the stepped plastic section, and the second guide section.

[0016] A capping machine includes a capping head as described above and a pull ring slide as described above.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) The top material head can fully enter the countersunk hole, and the first guide section, the stepped plastic section and the second guide section are set in the pressure cap horn, which provides more space and more guidance for the deviated pull ring cap, thereby driving a part of the pull ring cap with a slight degree of deviation to reset.

[0019] (2) Set up a pull ring slide with a notch and gradually thinning. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the capping head;

[0021] Figure 2 This is a cross-sectional view of the cap head;

[0022] Figure 3 This is a schematic diagram of the pressure cap and the pull ring track;

[0023] In the picture:

[0024] 1. Top material rod, 2. Pressure cap head body, 3. Pressure cap neck, 4. Pressure cap cylinder, 5. Pressure cap horn, 6. Top material rod body, 7. Top material head, 8. Connector, 9. Spring, 10. Countersunk hole, 11. Inner hole, 12. First guide section, 13. Stepped plastic section, 14. Second guide section, 15. Rounded corner, 16. Sliding sleeve, 17. Pressure cap ring groove, 18. Pull ring slide, 19. Notch. Detailed Implementation

[0025] The present disclosure will be further described below with reference to the accompanying drawings and embodiments.

[0026] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] In this disclosure, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely relational terms determined for the convenience of describing the structural relationship of the various components or elements in this disclosure, and do not specifically refer to any component or element in this disclosure, nor should they be construed as limiting this disclosure.

[0029] In this disclosure, terms such as "fixed connection," "connected," and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can determine the specific meaning of these terms in this disclosure based on the specific circumstances, and they should not be construed as limitations on this disclosure.

[0030] Example:

[0031] A capping head for a capping machine, as shown Figure 1 and Figure 2 As shown, the device includes a top-feeding rod 1 and a capping head body 2. The capping head body 2 includes a capping neck 3, a capping cylinder 4, and a capping horn 5. The top-feeding rod 1 includes a top-feeding rod body 6 and a top-feeding head 7 located at the end of the top-feeding rod body 6. A connecting piece 8 is provided on the top-feeding rod body 6, which is used to position a spring 9. The bottom of the capping cylinder 4 has a countersunk hole 10 adapted to the top-feeding head 7. The capping neck 3 and the capping cylinder 4 have inner holes 11 adapted to the top-feeding rod body 6. Along the direction from the capping neck 3 to the capping horn 5, the inner diameter of the capping horn 5 gradually increases. The capping horn 5 includes a first guide section 12, a stepped plastic section 13, and a second guide section 14. The first guide section 12 and the second guide section 14 are continuously transitioned at each point. A rounded corner 15 is provided between the two stepped surfaces of the stepped plastic section. The diameter of the capping head body 2 is 20 mm.

[0032] The capping neck 3 and the capping cylinder 4 are fixedly connected to the two ends of the inner hole 11 with sliding sleeves 16. The inner diameter of the sliding sleeves 16 is the same as the diameter of the inner hole 11. The sliding sleeves 16 reduce the friction between the ejector rod 1 and the capping head body 2, extend the service life of the capping head, and reduce the vibration of the capping head caused by the relative movement of the ejector rod 1 relative to the capping head body 2.

[0033] The outer diameter of the cap neck 3 is smaller than the outer diameter of the cap cylinder 4. The cap neck 3 is provided with a cap ring groove 17, which is connected to the spinning machine.

[0034] The connecting piece 8 is a retaining ring, which is detachably connected to the top material rod 1. By adjusting the distance of the connecting piece 8, the distance between the top material rod 1 and the pull ring cover can be controlled, allowing for faster pressing and positioning onto the pull ring cover. The top material rod 1 has an annular groove near its top, and the retaining ring engages with this groove. In some embodiments, there are several equally spaced annular grooves. By adjusting the position of the retaining ring, the preload of the spring 9 can be adjusted to adapt to the production cycle. To prevent the spring 9 from being corroded by beer, the spring 9 is made of stainless steel. To prevent electro-corrosion, the top material rod 1 is also made of stainless steel.

[0035] The ejector rod 1 is used to press-fit the pull-tab cap onto the beer bottle mouth. On the basis of maintaining the pressure of the ejector rod 1 on the pull-tab cap, an external pressure is applied to the capping head body 2 or the beer bottle to drive the two to move towards each other. The pull-tab cap approaches and enters the capping horn 5, and is deformed due to the limitation of the shape of the capping horn 5 and reliably seals the beer bottle mouth, completing the encapsulation of the beer bottle.

[0036] In order to improve the situation of bending the cap in this application, a counter bore 10 adapted to the ejector head 7 is provided at the capping cylinder 4, so that the ejector head 7 can completely enter the counter bore 10. And a first guiding section 12, a stepped plastic section 13 and a second guiding section 14 are provided in the capping horn 5. The pull-tab cap can be guided through both the first guiding section 12 and the second guiding section 14 to assist the pull-tab cap in returning to its position. The ejector head 7 can completely enter the counter bore 10, making the moving space for supplying the pull-tab cap larger, so that the skewed pull-tab cap is guided and then corrected, and thus the pull-tab cap with a relatively small skewed angle is guided to the preset position, reducing the probability of bending the cap.

[0037] A pull-tab slideway 18 for a capping machine, which is used to convey pull-tab caps. The end of the pull-tab slideway 18 is provided with a U-shaped notch 19. The notch 19 is arc-shaped, and the width of the end of the notch 19 is greater than the diameter of the pull-tab cap. Through the notch 19 provided at the end of the pull-tab chute, the notch 19 can extend the support time for the pull-tab cap and reduce the probability of the pull-tab cap skewing. The thickness of the end of the pull-tab slideway 18 gradually decreases to 1.5 mm. By reducing the thickness of the pull-tab slideway 18, the distance between the pull-tab cap and the beer bottle cap is reduced, thereby reducing the degree of skewing of the pull-tab cap, and it can be corrected by the first guiding section 12, the stepped plastic section 13 and the second guiding section 14. Limiting side plates for preventing the pull-tab cap from脱出 are also provided on both sides of the pull-tab runway. The limiting side plates are missing at the end position of the pull-tab runway so that the capping head can pass through in a posture closer to the pull-tab runway to avoid interference.

[0038] See Figure 3 As shown, a capping machine includes the capping head for the capping machine as described above and the pull-tab slideway 18 for the capping machine as described above.

[0039] The above-described embodiments are only preferred solutions of the present utility model, and do not impose any form of limitation on the present utility model. There are other variations and modifications without exceeding the technical solutions recorded in the claims.

Claims

1. A gland head characterized by, The device includes a top feed rod and a capping head body. The capping head body includes a capping neck, a capping cylinder, and a capping horn. The top feed rod includes a top feed rod body and a top feed head disposed at the end of the top feed rod body. A connector is provided on the top feed rod body, which is used to position the spring. The bottom of the capping cylinder is provided with a countersunk hole adapted to the top feed head. The capping neck and the capping cylinder are provided with inner holes adapted to the top feed rod body. Along the direction from the capping neck to the capping horn, the inner diameter of the capping horn gradually increases. The capping horn includes a first guide section, a stepped plastic section, and a second guide section. The first guide section and the second guide section are continuously transitioned at each point. A rounded corner is provided between the two stepped surfaces of the stepped plastic section.

2. The capping head according to claim 1, characterized in that, The gland neck and gland cylinder are fixedly connected to the two ends of the inner hole with sliding sleeves, the inner diameter of which is the same as the diameter of the inner hole.

3. The capping head according to claim 1, characterized in that, The outer diameter of the cap neck is smaller than the outer diameter of the cap cylinder, and the cap neck is provided with a cap ring groove.

4. The capping head according to claim 1, characterized in that, The connector is a retaining ring, which is detachably connected to the top material rod.

5. The capping head according to claim 1, characterized in that, The diameter of the capping head body is 20mm.

6. A pull ring slide for conveying pull ring caps, characterized in that, The end of the pull ring slide has a U-shaped notch, which is arc-shaped and the width of the end of the notch is greater than the diameter of the pull ring cover.

7. The pull ring slide rail according to claim 6, characterized in that, The thickness at the end of the pull ring slide gradually decreases to 1.5mm.

8. A capping machine, characterized in that, It includes the capping head as described in any one of claims 1 to 5 and the pull ring slide as described in claim 6 or 7.