Filling machine cap screwing head for medicine filling

Abstract

The utility model provides a cap screwing head of a filling machine for filling medicines. The cap screwing head comprises a cap screwing head upper seat and a cap screwing head lower seat which are connected with each other, the cap screwing head lower base comprises a side wall, and a first containing cavity used for containing a bottle cap is defined by the side wall. A friction ring is arranged on the inner surface of the side wall and comprises a plurality of wear-resistant bulges which are uniformly distributed along the inner surface of the side wall; a plurality of through holes are uniformly formed in the peripheral surface of the side wall; the outward end of the through hole is connected with a negative pressure air source, and the other end is communicated with the first containing cavity. The cap screwing head is simple and clear in structure and low in manufacturing cost, friction is generated between the friction ring of the cap screwing head lower base and a bottle cap, torque is transmitted to the bottle cap to tighten the bottle cap, the friction ring is arranged on the side face, enough friction force can be provided, and the bottle cap and a bottle body are not damaged. And the bottle cap can be sucked to a mounting position through the negative-pressure air source cap screwing head to be screwed.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical packaging machinery technology, and in particular to a capping head for a filling machine used for pharmaceutical filling. Background Technology

[0002] Canning is a method of storing medicines. Medicines are placed into cans, and vacuum sealing may be applied if necessary, followed by capping. It is safe, reliable, has a long shelf life, and is convenient to use, making life easier and gaining widespread application.

[0003] A crucial step in the filling process is sealing the packaging containers (such as plastic or glass bottles), which requires a filling machine. After the medicine is filled into the container, the cap needs to be screwed on. The mechanism responsible for screwing on the cap is called the capping mechanism. In existing pharmaceutical filling machines, the capping machine first places the cap at the opening of the packaging container, then clamps the container, and the capping head clamps the cap and screws it into the container opening. However, existing capping heads generally use a friction pad inside. The pressure from the capping head presses the friction pad against the cap to generate friction. If the pressure is too low, the friction is too weak to tighten the cap; if the pressure is too high, it can easily damage the bottle. Furthermore, capping heads with pickup functions mostly use three-jaw or four-jaw mechanisms, which have complex mechanical structures and high maintenance and operating costs. Therefore, these problems urgently need to be solved. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a capping head for a filling machine for pharmaceutical filling, which has a simple structure and low manufacturing cost; by adding a negative pressure air source, it can ensure that the bottle cap is fixed and that it is not damaged.

[0005] To achieve the above and other related objectives, this utility model provides the following technical solution:

[0006] A capping head for a pharmaceutical filling machine includes an upper capping head seat and a lower capping head seat connected to each other; the lower capping head seat includes a side wall, which surrounds a first receiving cavity for accommodating bottle caps; a friction ring is provided on the inner surface of the side wall, the friction ring including a plurality of wear-resistant protrusions evenly arranged along the inner surface of the side wall; a plurality of through holes are evenly opened on the outer circumferential surface of the side wall; one end of each through hole facing outward is connected to a negative pressure air source, and the other end is connected to the first receiving cavity.

[0007] Furthermore, the negative pressure air source includes a miniature air pump.

[0008] Furthermore, the wear-resistant protrusion extends along the height direction of the lower seat of the capping head, and its bottom is shaped like a shovel base.

[0009] Further, the lower side of the lower seat of the cap head is outwardly provided with a flange, and the flange is smoothly transitioned with the inner wall.

[0010] Further, the upper seat of the cap head is provided with a positioning hole, and the upper seat of the cap head is positioned and connected with the cap machine through the positioning hole.

[0011] Further, the side wall is provided with a limiting plate arranged around the outer circumferential surface, and the limiting plate abuts against the bottom end of the cap machine.

[0012] Further, the inner surface of the side wall is coated with a rubber coating.

[0013] As described above, the cap head of the filling machine for filling medicine has the following beneficial effects:

[0014] 1. The cap head of the filling machine for filling medicine is simple in structure, and a friction ring is arranged inside, a wear-resistant protrusion vertically arranged on the friction ring generates friction force to transmit torque with the bottle cap, so that the pressure is prevented from being applied on the bottle cap to break the bottle body or cause the bottle cap to be unable to be tightened.

[0015] 2. The cap head of the filling machine for filling medicine can not only tighten the bottle cap, but also pick up the bottle cap, a micro air pump provides an air source to form a negative pressure area inside the cap head, so that the bottle cap with light weight can be completely sucked.

[0016] 3. The wear-resistant protrusion end and the smooth transition surface between the flange and the inner wall in the cap head of the filling machine for filling medicine can guide the bottle cap well, and the cap head and the bottle cap do not need to be very accurately aligned to complete the picking and twisting work. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure schematic view of the cap head of the filling machine for filling medicine is shown.

[0018] Figure 2 A top view of the cap head of the filling machine for filling medicine is shown.

[0019] Figure 3 A Figure 2 A sectional view along the AA line.

[0020] 1, the upper seat of the cap head; 11, the positioning hole; 2, the lower seat of the cap head; 21, the side wall; 211, the first accommodating cavity; 212, the friction ring; 2121, the wear-resistant protrusion; 213, the through hole; 22, the limiting plate; 3, the micro air pump; 4, the flange; 100, the cap head of the filling machine for filling medicine. DETAILED DESCRIPTION

[0021] The following specific embodiments illustrate the embodiments of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosed content.

[0022] Please refer to Figures 1-3 It is understood that the structure, proportion, size, etc. shown in the drawings attached to the present specification are only used to cooperate with the disclosed content for those skilled in the art to understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the disclosed technical content. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.

[0023] Please refer to Figures 1 to 3 The present application provides a filling machine cap head 100 for filling medicine, comprising a cap head upper seat 1 and a cap head lower seat 2 connected to each other. The cap head lower seat 2 comprises a side wall 21, which forms a first accommodating cavity 211 for accommodating the bottle cap.

[0024] Specifically, the inner surface of the side wall 21 is provided with a friction ring 212, and the friction ring 212 comprises a plurality of wear-resistant protrusions 2121 uniformly arranged along the inner surface of the side wall 21.

[0025] Further, a plurality of through holes 213 are formed on the side wall 21 and uniformly arranged along the outer circumferential surface. The through holes 213 are connected to a negative pressure gas source at one end facing the outside, and the other end is in communication with the first accommodating cavity 211.

[0026] Further, the negative pressure gas source is a micro air pump 3.

[0027] In a preferred embodiment, the interval angle between the wear-resistant protrusions 2121 is 12°, and there are thirty groups in total. The number of wear-resistant protrusions 2121 can be adjusted according to the shape of different bottle caps.

[0028] On the one hand, the setting of the friction ring 212 can greatly increase the friction between the bottle cap and the cap head lower seat 2, so that the bottle cap can be stably accommodated in the first accommodating cavity 211; on the other hand, the setting of the micro air pump 3 can assist the bottle cap to be fixed in the first accommodating cavity 211, and also can be used to release the pressure in the bottle during the process of screwing the bottle cap, so that the internal and external air pressure of the bottle is consistent, facilitating the preservation and transportation of the finished product.

[0029] Please refer to Figure 3 The bottom of the wear-resistant protrusion 2121 is provided with a spade base shape. The wear-resistant protrusion 2121 can be made of wear-resistant hard rubber, has a long service life, can provide sufficient friction without damaging the bottle cap, and can provide sufficient friction when the bottle cap does not have a concave-convex design.

[0030] Please refer to Figure 3 The lower side of the cap head is provided with a flange 4 which is smoothly transitioned with the side wall 21. The bottle cap first smoothly enters the first accommodating cavity 211 through the smooth transition surface of the flange 4 and the lower seat 2 of the cap head, and then the wear-resistant protrusion 2121 is aligned with the groove on the bottle cap through the spade base shape of the wear-resistant protrusion 2121.

[0031] Through the design of the flange 4 and the spade base shape of the bottom of the wear-resistant protrusion 2121, the cap head and the bottle cap can complete the picking and twisting work without very accurate alignment, the time spent on alignment between the cap head and the bottle cap is reduced, and the production efficiency is improved.

[0032] Please refer to Figure 1 The cap head upper seat 1 is provided with a positioning hole 11, and the cap head upper seat 1 is connected with the capping machine through the positioning hole 11. The side wall 21 is provided with a limiting plate 22 which is arranged around the outer circumferential surface of the side wall 21 and abuts against the bottom end of the capping machine.

[0033] Through the positioning hole 11 and the limiting plate 22, the cap head upper seat 1 and the capping machine are quickly connected, the assembly time is saved, and the production efficiency is improved.

[0034] In addition, the inner surface of the side wall 21 is coated with a rubber coating. The use of the rubber coating effectively protects the bumping between the bottle cap and the cap head lower seat 2 during the capping process, and ensures the appearance of the bottle cap.

[0035] The implementation principle of the capping machine cap head 100 for filling medicine in the utility model is as follows: the cap head upper seat 1 and the capping machine are quickly connected and installed through the limiting plate 22 and the positioning hole 11. The cap head and the capping machine are coaxially arranged, the bottle cap is tightened through the friction torque transmitted by the wear-resistant protrusion 2121 on the side wall 21 and the bottle cap, and the bottle cap, the bottle body or the bottle cap cannot be tightened. There is no case of damage or not being tightened, and the micro air pump 3 provides negative air pressure, so that the structure has certain pressure relief and bottle cap picking functions.

[0036] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A capping head for filling pharmaceutical products, characterized in that it comprises a capping head upper seat (1) and a capping head lower seat (2) connected to each other; the capping head lower seat (2) comprises a side wall (21) which encloses a first accommodating cavity (211) for accommodating a bottle cap; the inner surface of the side wall (21) is provided with a friction ring (212) comprising a plurality of wear-resistant protrusions (2121) uniformly arranged along the inner surface of the side wall (21); a plurality of through holes (213) are uniformly arranged on the outer circumferential surface of the side wall (21); one end of each through hole (213) is connected to a negative pressure air source, and the other end is in communication with the first accommodating cavity (211). The negative pressure air source comprises a micro air pump (3).

2. The capper head for a pharmaceutical filling machine according to claim 1, wherein The wear-resistant protrusions (2121) extend along the height direction of the capping head lower seat (2), and the bottom thereof is provided with a spade-shaped base.

3. The capper head for a pharmaceutical filling machine according to claim 1, wherein The lower side of the capping head lower seat (2) is provided with a flange (4) which is smoothly connected to the side wall (21).

4. The capper head for a pharmaceutical filling machine according to claim 1, wherein The capping head upper seat (1) is provided with a positioning hole (11), and the capping head upper seat (1) is connected to a capping machine through the positioning hole (11).

5. The capper head for a pharmaceutical filling machine according to claim 1, wherein The side wall (21) is provided with a limiting plate (22) arranged around the outer circumferential surface thereof, and the limiting plate (22) abuts against the bottom end of the capping machine.

6. The capper head for a pharmaceutical filling machine according to claim 5, wherein The inner surface of the side wall (21) is coated with a rubber coating.

7. The capper head for a pharmaceutical filling machine according to claim 1, wherein ​

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