Cap screwing mechanism of filling machine
By designing an automated capping mechanism, the problem of unstable capping of manual capping is solved, and an efficient and stable capping process is achieved, ensuring the quality of capping and equipment safety, which is suitable for capping operation of filling machines.
Patent Information
- Application Number
- CN202422605908.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The manual capping operation of existing filling equipment is unstable, resulting in uneven capping quality, affecting sealing and product quality, and there is a risk of capping being too tight or too loose.
An automated capping mechanism including a transmission frame, an explosion-proof frame, a sealing mechanism, a clamping cylinder, a screw head and a stepping rotating mechanism is designed to realize the stable transmission and screwing of the barrel cover. The cap quality is ensured by the setting of multiple sets of screw heads, and the equipment is ensured safe operation by combining the explosion-proof frame and the explosion-proof door.
It realizes automated transmission and capping, improves capping efficiency and stability, reduces operating errors, ensures the stability of capping quality and equipment safety, and is suitable for handling hazardous environments such as corrosive liquids.
Smart Images

Figure CN223239725U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of filling machines, in particular to a capping mechanism of a filling machine. Background Art
[0002] During the liquid filling process, the cap is delivered from the cap feeding mechanism to the top of the container to be sealed. The capping mechanism then activates and screws the cap onto the container mouth, ensuring a tight seal. The capping step is crucial in this process, and its quality directly impacts the product's sealing and shelf life. If the cap is not securely screwed on or the sealing force is uneven, it can lead to liquid leakage and product deterioration.
[0003] Currently, many filling machines on the market still rely on manual capping. This manual capping method is unstable and cannot be compatible with automated filling systems. Because manual capping force is difficult to control, it is easy to overtighten or overloose the cap, affecting the product's seal. Overtightening the cap can cause container deformation, while loosening the cap can easily cause liquid leakage. Furthermore, manual operation is prone to human error, such as the cap not being aligned with the container opening or shifting during capping, which affects the overall product packaging quality.
[0004] Therefore, a capping mechanism for a filling machine is needed to solve the above technical defects. Utility Model Content
[0005] The purpose of the utility model is to provide a capping mechanism for a filling machine, so as to solve the problem of unstable operation during manual capping proposed in the above background technology.
[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a capping mechanism of a filling machine, comprising a transmission frame and an explosion-proof frame, a transmission motor being installed on one side of the outside of the transmission frame, a guide groove being fixedly connected to the top edge of the transmission frame, an explosion-proof frame being mounted above the transmission frame, a sealing mechanism being installed inside the explosion-proof frame, the sealing mechanism comprising a sealing motor fixed to the upper part of the explosion-proof frame, the sealing motor being connected to multiple groups of screwing heads via a transmission belt, the screwing heads being fixed to the lower part of the explosion-proof frame, a clamping cylinder being fixedly connected to one side of the lower part of the explosion-proof frame, and the piston rod of the clamping cylinder being fixedly connected to a splint.
[0007] Preferably, a cover plate is installed on the top of the explosion-proof frame, and a stepping rotation mechanism is provided on the right side of the cover plate. The stepping rotation mechanism includes a group of stepping motors fixedly assembled on one side of the cover plate, and the output end of the stepping motor is fixedly connected to a turntable through a connecting shaft, and multiple groups of slots are provided on the edge of the turntable.
[0008] Preferably, the grooves are semicircular concave arc grooves, and the grooves are distributed in a ring shape on the outer edge of the turntable.
[0009] Preferably, a cover placing mechanism is further provided at one end of the explosion-proof frame, and the cover placing mechanism includes a shift cylinder installed at one end of the screwing head, and the shift cylinder is fixedly assembled on the explosion-proof frame, and the piston rod of the shift cylinder is fixedly connected to the cover slot, and the top of the cover slot is fixedly connected to a guide column.
[0010] Preferably, an explosion-proof door is provided on the outside of the explosion-proof frame, and footings are installed at the four corners of the bottom end of the explosion-proof door.
[0011] Preferably, a buzzer is installed at the top of the explosion-proof door, an explosion-proof electrical box is installed at the left rear of the explosion-proof door, and an explosion-proof display screen is installed at the left front of the explosion-proof door.
[0012] Compared with the prior art, the beneficial effects of the present invention are: the capping mechanism of the filling machine not only realizes automatic transmission and capping, realizes continuous cap feeding and reduces errors, but also realizes safety and explosion prevention, reducing the risk of accidents;
[0013] (1) The barrel is manually placed on the transmission frame with a sealing mechanism, a transmission frame, a clamping cylinder, a splint, and a screwing head. As the transmission frame is conveyed, when the barrel comes under the sealing mechanism, the clamping cylinder drives the splint to advance toward the barrel, half-clamping the barrel to ensure its stability when the cap is installed. The screwing head screws the barrel cap onto the barrel. By setting up multiple sets of screwing heads, after the capping is completed, the transmission frame quickly removes the barrel, realizing automated transmission and capping, solving the problem of unstable operation in the traditional manual capping process, improving the capping efficiency and stability, and making the capping quality more stable.
[0014] (2) By providing a cap placing mechanism, a shifting cylinder, a cap slot, a turntable, a slot position, and a stepping motor, the cap body is transferred from the external cap placing machine to the cap placing mechanism, the shifting cylinder pushes the cap slot to move, so that the cap body comes to the slot position of the turntable, and the stepping motor drives the turntable to rotate once, and the slot position is changed once, and a new barrel cap is added to the slot position from the cap slot, thereby realizing continuous cap feeding, and the cap body can stably and accurately enter the capping position, avoiding the errors and delays that may occur when manually placing the cap body, improving production efficiency, and reducing interruptions and operational errors in the production process;
[0015] (3) The entire capping assembly is installed on the explosion-proof frame and located inside the explosion-proof door. The transmission frame passes through the explosion-proof door. Before the machine works, the parameters are operated on the explosion-proof display. The various components in the machine are controlled by the explosion-proof electrical box. If the capping fails, all components will be paused and the buzzer will light up to warn. It is suitable for handling dangerous environments such as corrosive liquids. The explosion-proof door ensures the safe operation of the equipment and reduces the risk of accidents. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a front view structural diagram of the utility model;
[0017] Figure 2 This is a rear view structural diagram of the utility model;
[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;
[0019] Figure 4 This is a front view structural diagram of the sealing mechanism of the present invention;
[0020] Figure 5 This is a schematic diagram of the top view of the stepping rotation mechanism of the present utility model;
[0021] Figure 6 This is a schematic diagram of the turntable structure of the utility model;
[0022] Figure 7 This is a schematic diagram of the top view of the cover placing mechanism of the present invention;
[0023] Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the utility model.
[0024] In the figure: 1. Buzzer; 2. Explosion-proof electrical box; 3. Explosion-proof display screen; 4. Transmission frame; 5. Transmission motor; 6. Explosion-proof frame; 7. Anchor; 8. Explosion-proof door; 9. Guide groove; 10. Stepper rotation mechanism; 11. Sealing mechanism; 12. Cover plate; 13. Guide column; 14. Sealing motor; 15. Screwing head; 16. Turntable; 17. Slot; 18. Stepper motor; 19. Cover placement mechanism; 20. Shift cylinder; 21. Cover slot; 22. Clamping cylinder; 23. Clamping plate. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] Example: See Figure 1-8A capping mechanism of a filling machine includes a transmission frame 4 and an explosion-proof frame 6. A transmission motor 5 is installed on one side of the outside of the transmission frame 4. The top edge of the transmission frame 4 is fixedly connected to a guide groove 9. An explosion-proof frame 6 is mounted above the transmission frame 4. A sealing mechanism 11 is installed in the explosion-proof frame 6. The sealing mechanism 11 includes a sealing motor 14 fixed to the upper part of the explosion-proof frame 6. The sealing motor 14 is connected to multiple groups of screwing heads 15 through a transmission belt. The screwing heads 15 are fixed to the lower part of the explosion-proof frame 6. A clamping cylinder 22 is fixedly connected to one side of the lower part of the explosion-proof frame 6. The piston rod of the clamping cylinder 22 is fixedly connected to a clamping plate 23.
[0027] Specifically, if Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 8 As shown, the barrel is manually placed on the transmission rack 4. As the transmission rack 4 is transported, when the transmission rack 4 comes under the sealing mechanism 11, the clamping cylinder 22 drives the clamping plate 23 to advance toward the barrel, half-clamping the barrel to ensure its stability when the cap is installed. The screwing head 15 screws the barrel cover onto the barrel. Through the setting of multiple groups of screwing heads 15, after the capping is completed, the transmission rack 4 quickly removes the barrel to realize automated transmission and capping. The slot 17 is a semicircular concave arc slot, and the slot 17 is distributed in a ring on the outer edge of the turntable 16.
[0028] Embodiment: A cover plate 12 is installed on the top of the explosion-proof frame 6, and a stepping rotation mechanism 10 is provided on the right side of the cover plate 12. The stepping rotation mechanism 10 includes a set of stepping motors 18 fixedly assembled on one side of the cover plate 12. The output end of the stepping motor 18 is fixedly connected to the turntable 16 through a connecting shaft. A plurality of groups of slots 17 are provided on the edge of the turntable 16. A cover placement mechanism 19 is also provided at one end of the explosion-proof frame 6. The cover placement mechanism 19 includes a shift cylinder 20 installed at one end of the screwing head 15. The shift cylinder 20 is fixedly assembled at the explosion-proof frame 6. The piston rod of the shift cylinder 20 is fixedly connected to the cover slot 21, and the top of the cover slot 21 is fixedly connected to the guide column 13;
[0029] Specifically, if Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7 As shown, the cover body is transferred from the external cover placing machine to the cover placing mechanism 19, and the shift cylinder 20 pushes the cover slot 21 to move, so that the cover body comes to the slot 17 position of the turntable 16. The stepper motor 18 drives the turntable 16 to rotate once, and the slot 17 changes once. The new barrel cover is added from the cover slot 21 to the slot 17, realizing continuous cover feeding, and the cover body can stably and accurately enter the capping position.
[0030] Embodiment: An explosion-proof door 8 is provided outside the explosion-proof frame 6, and feet 7 are installed at the four corners of the bottom of the explosion-proof door 8. A buzzer 1 is installed on the top of the explosion-proof door 8, an explosion-proof electric box 2 is installed at the left rear of the explosion-proof door 8, and an explosion-proof display screen 3 is installed at the left front of the explosion-proof door 8;
[0031] Specifically, if Figure 1 、 Figure 2 、 Figure 3 and Figure 8 As shown, the entire screw cap assembly is installed on the explosion-proof frame 6 and is located inside the explosion-proof door 8. The transmission frame 4 passes through the explosion-proof door 8. Before the machine works, the parameters are operated on the explosion-proof display screen 3. The various components in the machine are controlled by the explosion-proof electrical box 2. If the screw cap fails, all components are paused and the buzzer 1 lights up to warn. It is suitable for handling dangerous environments such as corrosive liquids.
[0032] Working principle: The barrel is manually placed on the transmission rack 4. As the transmission rack 4 is transported, when the transmission rack 4 comes to the bottom of the sealing mechanism 11, the clamping cylinder 22 drives the clamping plate 23 to advance toward the barrel, half-clamping the barrel to ensure its stability when the cap is installed. The screwing head 15 screws the barrel cover onto the barrel, and the cover body is transferred from the external capping machine to the capping mechanism 19. The shift cylinder 20 pushes the capping slot 21 to move, so that the cover body comes to the slot 17 position of the turntable 16. The stepping motor 18 drives the turntable 16 to rotate once, and the slot 17 changes once. The new barrel cover is added from the capping slot 21 to the slot 17, realizing continuous cap feeding. The cover body can stably and accurately enter the capping position. Through the setting of multiple sets of screwing heads 15, after the capping is completed, the transmission rack 4 quickly removes the barrel part to realize automatic transmission and capping.
[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. A capping mechanism for a filling machine, comprising a transmission frame (4) and an explosion-proof frame (6), characterized in that: A transmission motor (5) is installed on one side of the outside of the transmission frame (4); a guide groove (9) is fixedly connected to the top edge of the transmission frame (4); an explosion-proof frame (6) is mounted above the transmission frame (4); a sealing mechanism (11) is installed in the explosion-proof frame (6); the sealing mechanism (11) comprises a sealing motor (14) fixed to the upper part of the explosion-proof frame (6); the sealing motor (14) is connected to a plurality of screwing heads (15) through a transmission belt; the screwing heads (15) are fixed to the lower part of the explosion-proof frame (6); a clamping cylinder (22) is fixedly connected to one side of the lower part of the explosion-proof frame (6); and a piston rod of the clamping cylinder (22) is fixedly connected to a clamping plate (23).
2. The capping mechanism of a filling machine according to claim 1, characterized in that: A cover plate (12) is installed on the top of the explosion-proof frame (6), and a stepping rotation mechanism (10) is provided on the right side of the cover plate (12). The stepping rotation mechanism (10) includes a group of stepping motors (18) fixedly assembled on one side of the cover plate (12), and the output end of the stepping motor (18) is fixedly connected to a turntable (16) through a connecting shaft, and a plurality of slots (17) are provided on the edge of the turntable (16).
3. The capping mechanism of a filling machine according to claim 2, characterized in that: The grooves (17) are semicircular concave arc grooves, and the grooves (17) are distributed in an annular manner on the outer edge of the rotating disk (16).
4. The capping mechanism of a filling machine according to claim 1, characterized in that: A cover placement mechanism (19) is further provided at one end of the explosion-proof frame (6). The cover placement mechanism (19) comprises a shift cylinder (20) mounted at one end of the screwing head (15). The shift cylinder (20) is fixedly assembled on the explosion-proof frame (6). The piston rod of the shift cylinder (20) is fixedly connected to a cover slot (21). The top end of the cover slot (21) is fixedly connected to a guide column (13).
5. The capping mechanism of a filling machine according to claim 1, characterized in that: An explosion-proof door (8) is provided outside the explosion-proof frame (6), and four corners of the bottom end of the explosion-proof door (8) are all equipped with footings (7).
6. The capping mechanism of a filling machine according to claim 5, characterized in that: A buzzer (1) is installed at the top of the explosion-proof door (8), an explosion-proof electric box (2) is installed at the left rear of the explosion-proof door (8), and an explosion-proof display screen (3) is installed at the left front of the explosion-proof door (8).