Double-end vacuum cap screwing machine

By designing a double-head vacuum capping machine, which combines a conveying component, a lifting component, and a bottle clamping component, automated slow conveying and synchronous capping are achieved. This solves the problems of bottle jamming, overflow, and low efficiency of rotary and linear vacuum capping machines, thereby improving production efficiency and product quality.

CN224132691UActive Publication Date: 2026-04-17SHANDONG DERUISI AUTOMATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG DERUISI AUTOMATION EQUIP CO LTD
Filing Date
2025-05-06
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing rotary vacuum capping machines are prone to bottle jamming and bottle explosion, and have high vacuum loss during capping. Linear vacuum capping machines suffer from material spillage and pollution, as well as low production efficiency.

Method used

A dual-head vacuum capping machine was designed, which combines a conveying component, a lifting component, a bottle clamping component, and a capping component to achieve automated slow conveying and synchronous capping. It uses cylinders to separate bottles and silicone bottle clamps for sealing, ensuring the continuity and efficiency of the capping process.

Benefits of technology

It avoids bottle jamming and spillage during the capping process, improving production efficiency and product quality. The capping process is flexible, with excellent sealing effect and uniform capping force, thus enhancing production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double-end vacuum cap screwing machine, and particularly relates to the technical field of cap screwing machines, the double-end vacuum cap screwing machine comprises a conveying assembly, the front part of the conveying assembly is provided with a supporting assembly, the left part of the supporting assembly is rotatably connected with a synchronous assembly, and the lower part of the synchronous assembly is fixedly connected with a lifting assembly; the lower portion of the lifting assembly is fixedly connected with a cap screwing assembly, and the upper portion of the lifting assembly is fixedly connected with a bottle clamping assembly. According to the double-end vacuum cap screwing machine, the cap screwing action can be completed in the continuous moving process of a bottle through the designed synchronous assembly, liquid shaking out or bottle opening pollution caused by pause is avoided, meanwhile, the production efficiency is improved, cap screwing torque is controlled through the pneumatic actuator, parameters are digitally adjusted through a touch screen, and the production efficiency is improved. And meanwhile, the tracking system accurately controls the bottle body position and the cap screwing track, synchronous operation under high-speed movement is achieved, and the sealing reliability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of capping machine technology, and in particular to a double-head vacuum capping machine. Background Technology

[0002] A vacuum capping machine is a device that screws three or four tinplate caps onto the mouth of a glass bottle. Before capping, the air inside the bottle is extracted and the capping is completed simultaneously. After the cap is screwed on, the bottle is in a vacuum state, which effectively extends the shelf life of the contents. It is widely used in the glass-filled food industry.

[0003] Existing vacuum capping machines come in two structural forms: rotary and linear. However, existing rotary vacuum capping machines have significant drawbacks: (1) Rotary vacuum capping machines are prone to bottle jamming and bottle explosion during the bottle feeding process; (2) Vacuum loss is high during capping, requiring a matching vacuum pump with a power of over 3 kilowatts, and the vacuum pump operates continuously, increasing operating costs; (3) For round bottles of sauce, the production efficiency of rotary machines is halved when there is oil at the bottle opening. Linear vacuum capping machines are generally four-head or six-head vacuum capping machines. The capping process of linear vacuum capping machines is intermittent. When the bottles are fed in, the bottle separating device separates the bottles by a certain distance, and then the bottle blocking device blocks the bottles. When the bottle blocking device blocks the bottles, the material inside the bottles will overflow due to inertia, contaminating the packaging line and affecting product quality. To prevent the material from overflowing, the bottle conveying speed can only be reduced to reduce the bottle inertia, but this affects production efficiency. Therefore, we propose a double-head vacuum capping machine to solve the above problems. Utility Model Content

[0004] The main purpose of this invention is to provide a double-head vacuum capping machine that can effectively solve the problems of bottle jamming and low efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A double-head vacuum capping machine includes a conveying assembly, a support assembly at the front of the conveying assembly, a synchronization assembly rotatably connected to the left side of the support assembly, a lifting assembly fixedly connected to the lower part of the synchronization assembly, a capping assembly fixedly connected to the lower part of the lifting assembly, and a bottle clamping assembly fixedly connected to the upper part of the lifting assembly.

[0007] Preferably, the conveying assembly includes a base plate, a fixing plate fixedly connected to the rear end of the base plate, a motor fixedly connected to the upper end of the fixing plate, two pulleys rotatably connected to the rear end of the base plate, a belt wound around the outer surfaces of the two pulleys, a shaft fixedly connected to the front end of each of the two motors, a conveyor belt rotatably connected to the outer surfaces of the two shafts, and the output end of the motor is fixedly connected to the rear end of the pulley located on the right side via a coupling.

[0008] Preferably, the support assembly includes support rods, two of which are disposed at the front of the base plate, and a fixing shell is fixedly connected to the upper end of each of the two support rods.

[0009] Preferably, the synchronization component includes two pulleys, the right ends of which are rotatably connected to the left end of the support rod, and belts are wound around the outer surfaces of the two pulleys. A motor is fixedly connected to the right side of the bottom wall of the inner cavity of the support rod. A threaded rod is fixedly connected to the left end of the pulley at the front via a shaft. A guide rod is fixedly connected to the left and right sides of the inner cavity of the support rod.

[0010] Preferably, the lifting assembly includes a sliding plate, the two inner surfaces of which are slidably connected to the outer surface of the threaded rod and the outer surface of the guide rod, a lifting cylinder is fixedly connected to the upper end of the sliding plate, and a connecting plate is fixedly connected to the lower end of the lifting cylinder.

[0011] Preferably, the capping assembly includes connecting shafts, the upper ends of several connecting shafts are fixedly connected to the lower ends of connecting plates, two fixing plates are fixedly connected to the outer surfaces of several connecting shafts, pneumatic actuators are fixedly connected to the upper ends of the two fixing plates, two fixing plates are fixedly connected to the lower ends of several connecting shafts, protective shells are fixedly connected to the upper ends of the two fixing plates and the lower ends of the two fixing plates, sealing shells are fixedly connected to the lower ends of the two fixing plates, and the output ends of the two pneumatic actuators are fixedly connected to the capping head body via couplings.

[0012] Preferably, the bottle clamping assembly includes a bidirectional cylinder, the lower end of which is fixedly connected to the middle of the upper end of the second fixing plate, and the output ends of the bidirectional cylinder are all fixedly connected to the bottle clamping plates via couplings.

[0013] Preferably, the left and right ends of the threaded rod are rotatably connected to the left and right side walls of the inner cavity of the fixed housing, and the output end of the second motor is fixedly connected to the rear end of the second pulley located at the rear via a coupling.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model, through its conveying, lifting, capping, and clamping components, achieves fully automated slow-speed bottle conveying, automatic capping, cylinder-based bottle separation, bottle clamping, sealing, vacuuming, and capping. The capping mechanism employs a continuous bottle clamping and automatic capping mechanism, cylinder-based bottle separation, silicone bottle clamping, sealing, vacuuming, and capping. During the process, bottle explosions and material spillage are prevented, ensuring product quality, high output, and good versatility. All adjustable parts are equipped with scales and digital adjustment parameters. When changing bottle types, only the silicone bottle clamping seal and the height of the capping device need to be replaced, making adjustment simple and efficient. During vacuum capping, all parts in contact with the bottle cap are made of silicone, providing flexible contact that does not damage the bottle or cap, ensuring a good seal and improving product quality and production efficiency.

[0016] 2. This utility model, through the set synchronization component, can realize the capping action while the bottle is moving continuously, avoiding liquid spillage or bottle mouth contamination caused by pauses, while improving production efficiency. It uses a pneumatic actuator to control the capping torque and adjusts parameters digitally through a touch screen to ensure uniform capping force and avoid problems of not tightening or tightening too much. At the same time, the tracking system accurately controls the position of the bottle and the capping trajectory, realizing synchronous operation under high-speed movement and improving sealing reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0019] Figure 3 This is a partial cross-sectional view of the structure of this utility model;

[0020] Figure 4 This is a partial structural cross-sectional view of the present invention from another perspective;

[0021] Figure 5 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0022] Figure 6 For the present utility model Figure 5 Enlarged diagram of point A in the middle.

[0023] In the diagram: 1. Conveying assembly; 11. Base plate; 12. Fixing plate one; 13. Motor one; 14. Pulley one; 15. Belt one; 16. Shaft; 17. Conveyor belt; 2. Support assembly; 21. Support rod; 22. Fixing shell; 3. Synchronization assembly; 31. Pulley two; 32. Belt two; 33. Motor two; 34. Threaded rod; 35. Guide rod; 4. Lifting assembly; 41. Sliding plate; 42. Lifting cylinder; 43. Connecting plate; 5. Capping assembly; 51. Connecting shaft; 52. Pneumatic actuator; 53. Fixing plate two; 54. Fixing plate three; 55. Protective shell; 56. Sealing shell; 57. Capping head body; 6. Bottle clamping assembly; 61. Two-way cylinder; 62. Bottle clamping plate. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Example 1, as Figure 1 As shown, a double-head vacuum capping machine includes a conveying component 1, a support component 2 is provided at the front of the conveying component 1, a synchronization component 3 is rotatably connected to the left side of the support component 2, a lifting component 4 is fixedly connected to the lower part of the synchronization component 3, a capping component 5 is fixedly connected to the lower part of the lifting component 4, and a bottle clamping component 6 is fixedly connected to the upper part of the lifting component 4.

[0026] In implementation, the operator first connects the vacuum pump to the suction pipe, then places the bottle on the conveying assembly 1 and starts the conveying assembly 1 to move the bottle. When the bottle moves to the bottle clamping assembly 6, the sensor at the bottom of the bottle clamping assembly 6 will activate the bottle clamping assembly 6 and the synchronization assembly 3 to clamp the bottle clamping assembly 6 and move it synchronously. At the same time, the lifting assembly 4 will be activated to lower the capping assembly 5. At this time, the vacuum pump will first evacuate the air from the capping assembly 5 and the bottle, and then the capping assembly 5 will start to cap the bottle, achieving the effect of automatic capping.

[0027] Specifically, for screw-top bottles, such as Figure 3 As shown, in this scheme, the conveying assembly 1 includes a base plate 11, a fixing plate 12 is fixedly connected to the rear end of the base plate 11, a motor 13 is fixedly connected to the upper end of the fixing plate 12, two pulleys 14 are rotatably connected to the rear end of the base plate 11, a belt 15 is wound around the outer surface of the two pulleys 14, a shaft 16 is fixedly connected to the front end of each of the two motors 13, a conveyor belt 17 is rotatably connected to the outer surface of each of the two shafts 16, and the output end of the motor 13 is fixedly connected to the rear end of the pulley 14 located on the right side through a coupling.

[0028] For further details, please refer to [link / reference]. Figure 2The support assembly 2 includes support rods 21. Both support rods 21 are located at the front of the base plate 11, and both support rods 21 are fixedly connected to a fixed shell 22 at their upper ends.

[0029] For further details, please refer to [link / reference]. Figure 3 and Figure 4 The lifting assembly 4 includes a sliding plate 41. Both inner surfaces of the sliding plate 41 are slidably connected to the outer surfaces of the threaded rod 34 and the guide rod 35. A lifting cylinder 42 is fixedly connected to the upper end of the sliding plate 41, and a connecting plate 43 is fixedly connected to the lower end of the lifting cylinder 42.

[0030] For further details, please refer to [link / reference]. Figure 3 and Figure 5 The capping assembly 5 includes connecting shafts 51. The upper ends of several connecting shafts 51 are fixedly connected to the lower ends of connecting plates 43. Two fixing plates 53 are fixedly connected to the outer surfaces of several connecting shafts 51. Pneumatic actuators 52 are fixedly connected to the upper ends of the two fixing plates 53. Two fixing plates 54 are fixedly connected to the lower ends of several connecting shafts 51. Protective shells 55 are fixedly connected to the upper ends of the two fixing plates 54 and the lower ends of the two fixing plates 53. Sealing shells 56 are fixedly connected to the lower ends of the two fixing plates 54. The output ends of the two pneumatic actuators 52 are fixedly connected to the capping head body 57 through couplings.

[0031] For further details, please refer to [link / reference]. Figure 2 The bottle clamping assembly 6 includes a bidirectional cylinder 61. The lower end of the bidirectional cylinder 61 is fixedly connected to the middle of the upper end of the fixing plate 53. The output ends of the bidirectional cylinder 61 are all fixedly connected to the bottle clamping plates 62 through couplings.

[0032] For further details, please refer to [link / reference]. Figure 6 The left and right ends of the threaded rod 34 are rotatably connected to the left and right side walls of the inner cavity of the fixed shell 22. The output end of the motor 2 33 is fixedly connected to the rear end of the pulley 2 31 located at the rear through a coupling.

[0033] When implementing this solution, the operator first connects the vacuum pump to the suction pipe. Then, the operator places the bottle on the conveyor belt 17 and starts the motor 13 to drive the pulley 14, belt 15, shaft 16 and conveyor belt 17 to rotate and move the bottle. When the bottle moves under the bottle clamping plate 62, the sensor at the bottom of the bottle clamping plate 62 will start the bidirectional cylinder 61 and the motor 2 33. As a result, the bottle clamping plates 62 will move closer to each other and clamp the bottle. Meanwhile, the synchronization component 3 will make the lifting component 4, the capping component 5 and the bottle clamping component 6 move synchronously with the bottle.

[0034] At the same time, the lifting cylinder 42 will be activated to push the connecting plate 43, the capping assembly 5 and the bottle clamping assembly 6 to descend as a whole, allowing the bottle to enter the sealing shell 56. At this time, the vacuum pump will first extract the air from the sealing shell 56 and the bottle, and then the pneumatic actuator 52 will be activated, thereby driving the capping head body 57 to rotate to cap the bottle, achieving the effect of automatic capping.

[0035] Example 2, based on Example 1, enables tracking movement for capping.

[0036] Specifically, the cap is screwed on for repositioning, such as... Figure 6 As shown, in this scheme, the synchronization component 3 includes pulley 2 31. The right ends of both pulley 2 31 are rotatably connected to the left end of the support rod 21. Belt 2 32 is wound around the outer surface of both pulley 2 31. Motor 2 33 is fixedly connected to the right side of the bottom wall of the inner cavity of the support rod 21. Threaded rod 34 is fixedly connected to the left end of the pulley 2 31 at the front via a shaft. Guide rod 35 is fixedly connected to the left and right sides of the inner cavity of the support rod 21.

[0037] When this solution is implemented, when motor 2 33 starts, pulley 2 31, belt 2 32 and threaded rod 34 will rotate, which will cause support rod 21 to slide on guide rod 35 and move synchronously with the bottle, achieving the effect of moving and screwing on at the same time.

[0038] Meanwhile, a sensor is fixedly connected to the lower part of the bottle clamping plate 62, which can sense the bottle and thus activate the lifting cylinder 42, the pneumatic actuator 52, and the bidirectional cylinder 61.

[0039] In summary, the implementation process of this utility model is as follows:

[0040] The operator first connects the vacuum pump to the suction pipe. Then, the operator places the bottle on the conveyor belt 17 and starts the motor 13 to drive the pulley 14, belt 15, shaft 16 and conveyor belt 17 to rotate and move the bottle. When the bottle moves under the bottle clamping plate 62, the sensor at the bottom of the bottle clamping plate 62 will start the bidirectional cylinder 61 and the motor 2 33. As a result, the bottle clamping plates 62 will move closer to each other and clamp the bottle. Meanwhile, the synchronization component 3 will make the lifting component 4, the capping component 5 and the bottle clamping component 6 move synchronously with the bottle.

[0041] At the same time, the lifting cylinder 42 will be activated to push the connecting plate 43, the capping assembly 5 and the bottle clamping assembly 6 to descend as a whole, so that the bottle enters the sealing shell 56. At this time, the vacuum pump will first extract the air from the sealing shell 56 and the bottle, and then the pneumatic actuator 52 will be activated, thereby driving the capping head body 57 to rotate to cap the bottle, so as to achieve the effect of automatic capping.

[0042] When motor 2 33 starts, pulley 2 31, belt 2 32 and threaded rod 34 will rotate, which will cause support rod 21 to slide on guide rod 35 and move synchronously with the bottle, achieving the effect of moving and screwing on the cap at the same time.

[0043] It should be noted that the specific installation methods, circuit connection methods, and control methods of the motor 13, motor 23, lifting cylinder 42, pneumatic actuator 52, and bidirectional cylinder 61 used in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-head vacuum capping machine, comprising a conveying assembly (1), characterized in that: The conveying component (1) is provided with a support component (2) at the front. The support component (2) is rotatably connected to a synchronization component (3) on the left side. The synchronization component (3) is fixedly connected to a lifting component (4) at the bottom. The lifting component (4) is fixedly connected to a capping component (5) at the bottom. The lifting component (4) is fixedly connected to a bottle clamping component (6) at the top.

2. A dual-head vacuum spin capping machine as defined in claim 1, wherein: The conveying assembly (1) includes a base plate (11), a fixing plate (12) is fixedly connected to the rear end of the base plate (11), a motor (13) is fixedly connected to the upper end of the fixing plate (12), two pulleys (14) are rotatably connected to the rear end of the base plate (11), a belt (15) is wound around the outer surface of the two pulleys (14), a shaft (16) is fixedly connected to the front end of the two motors (13), a transmission belt (17) is rotatably connected to the outer surface of the two shafts (16), and the output end of the motor (13) is fixedly connected to the rear end of the pulley (14) located on the right side through a coupling.

3. A dual head vacuum capping machine as claimed in claim 2, wherein: The support assembly (2) includes support rods (21), both of which are located at the front of the base plate (11), and both of the support rods (21) are fixedly connected to a fixing shell (22) at their upper ends.

4. A dual-head vacuum spin capping machine as defined in claim 3, wherein: The synchronization component (3) includes two pulleys (31), the right ends of the two pulleys (31) are rotatably connected to the left end of the support rod (21), the outer surfaces of the two pulleys (31) are wound with belts (32), the right side of the bottom wall of the inner cavity of the support rod (21) is fixedly connected to a motor (33), the left end of the pulley (31) at the front is fixedly connected to a threaded rod (34) through a shaft, and the left and right sides of the inner cavity of the support rod (21) are jointly fixedly connected to a guide rod (35).

5. A dual-head vacuum spin capping machine as defined in claim 4, wherein: The lifting assembly (4) includes a sliding plate (41). The two inner surfaces of the sliding plate (41) are slidably connected to the outer surface of the threaded rod (34) and the outer surface of the guide rod (35). A lifting cylinder (42) is fixedly connected to the upper end of the sliding plate (41), and a connecting plate (43) is fixedly connected to the lower end of the lifting cylinder (42).

6. A dual-head vacuum spin-on cap machine as defined in claim 5, wherein: The capping assembly (5) includes connecting shafts (51), the upper ends of several connecting shafts (51) are fixedly connected to the lower ends of connecting plates (43), the outer surfaces of several connecting shafts (51) are fixedly connected to two fixing plates (53), the upper ends of the two fixing plates (53) are fixedly connected to pneumatic actuators (52), the lower ends of several connecting shafts (51) are fixedly connected to two fixing plates (54), the upper ends of the two fixing plates (54) and the lower ends of the two fixing plates (53) are fixedly connected to protective shells (55), the lower ends of the two fixing plates (54) are fixedly connected to sealing shells (56), and the output ends of the two pneumatic actuators (52) are fixedly connected to capping head bodies (57) through couplings.

7. A double-head vacuum capping machine according to claim 6, characterized in that: The bottle clamping assembly (6) includes a bidirectional cylinder (61), the lower end of which is fixedly connected to the middle of the upper end of the second fixing plate (53), and the output ends of the bidirectional cylinder (61) are all fixedly connected to the bottle clamping plate (62) through a coupling.

8. A dual-head vacuum spin-on cap machine as defined in claim 4, wherein: The left and right ends of the threaded rod (34) are rotatably connected to the left and right side walls of the inner cavity of the fixed shell (22), and the output end of the motor (33) is fixedly connected to the rear end of the pulley (31) located at the rear through a coupling.