CN220951125U - Spiral cover mechanism - Google Patents
Spiral cover mechanism Download PDFInfo
- Publication number
- CN220951125U CN220951125U CN202323054754.9U CN202323054754U CN220951125U CN 220951125 U CN220951125 U CN 220951125U CN 202323054754 U CN202323054754 U CN 202323054754U CN 220951125 U CN220951125 U CN 220951125U
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- CN
- China
- Prior art keywords
- ball spline
- main shaft
- spline
- spiral cover
- servo motor
- Prior art date
- 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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- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a cap screwing mechanism which comprises a main shaft, a sliding sleeve, a ball spline, a high-speed rotary joint, a cap screwing head, a rotary driving structure and a cam follower, wherein the sliding sleeve is sleeved on the main shaft, the cam follower is arranged at the top end of the main shaft, the ball spline is a hollow shaft, the ball spline is connected with the main shaft through a bearing, the top end of the ball spline extends into the main shaft from the bottom end of the main shaft and is connected with the high-speed rotary joint, the bottom end of the ball spline extends out of the main shaft from the bottom end of the main shaft and is connected with the cap screwing head, and the rotary driving structure is connected with the ball spline. The utility model can improve the coaxial precision, the screw cap precision, the structure is simple, and the cost is reduced.
Description
Technical Field
The utility model relates to the technical field of packaging equipment, in particular to a cap screwing mechanism.
Background
The cap screwing machine is an important device of an automatic filling production line and is used for screwing a bottle cap onto a bottle mouth of a packaging bottle. The connection structure between the cap screwing head and the main shaft of the existing cap screwing mechanism is complex, so that the coaxial precision is low, the cap screwing precision is influenced, and the production cost is high.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide the cap screwing mechanism which can improve the coaxial precision, the cap screwing precision, the structure is simple and the cost is reduced.
The utility model is realized by the following technical scheme: the utility model provides a spiral cover mechanism, includes main shaft, sliding sleeve, ball spline, high-speed rotary joint, spiral cover head, rotary driving structure, cam follower, the sliding sleeve suit is in on the main shaft, the cam follower sets up the top of main shaft, ball spline is the hollow shaft, ball spline with connect through the bearing between the main shaft, just ball spline's top is followed the bottom of main shaft stretches into in the main shaft, and with high-speed rotary joint connects, ball spline's bottom is followed the bottom of main shaft stretches out outside the main shaft, and with the spiral cover head is connected, rotary driving structure with ball spline connects.
Further: the spiral cover head is in sealing connection with the ball spline through an O-shaped ring.
Further: the ball spline is provided with a limiting ring, the ball spline is sleeved with a spring, and the spring is positioned between the limiting ring and the flange plate of the ball spline.
Further: the rotary driving structure is arranged on the mounting seat, and the mounting seat is fixed with the main shaft.
Further: the rotary driving structure comprises a servo motor and a transmission structure, wherein the servo motor is arranged on the mounting seat, the transmission structure is arranged in the mounting seat, and the servo motor is connected with the spline housing of the ball spline through the transmission structure.
Further: the transmission structure comprises a driving gear, a synchronous belt and a driven gear, wherein the driving gear is connected with the output end of the servo motor, the driven gear is sleeved on a spline housing of the ball spline, and the synchronous belt is sleeved on the driving gear and the driven gear.
Compared with the prior art, the utility model has the following beneficial effects:
1. Through setting up high-speed rotary joint on ball spline's top, with the spiral cover head setting in ball spline's bottom, can improve coaxial precision between the three to improve spiral cover precision, simple structure can reduce manufacturing cost.
2. The spiral cover head is in sealing connection with the ball spline through the O-shaped ring, no relative motion exists between the spiral cover head and the ball spline, static sealing is achieved between the O-shaped ring, the spiral cover head and the ball spline, sealing is relatively reliable, air leakage is avoided, and the cover grabbing stability of the spiral cover head is improved.
3. The buffer effect can be achieved by arranging the spring between the limiting ring and the flange plate of the ball spline.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
Fig. 2 is a cross-sectional view of the present utility model.
Reference numerals illustrate: the device comprises a main shaft, a 2-sliding sleeve, a 3-ball spline, a 4-high-speed rotary joint, a 5-rotary cap head, a 6-rotary driving structure, a 7-cam follower, an 8-bearing, a 9-O-shaped ring, a 10-limiting ring, an 11-spring, a 12-flange plate, a 13-mounting seat, a 14-servo motor, a 15-spline sleeve, a 16-driving gear, a 17-synchronous belt and an 18-driven gear.
Detailed Description
Fig. 1 to 2 are schematic structural views of an embodiment of a cap screwing mechanism provided by the utility model, which comprises a main shaft 1, a sliding sleeve 2, a ball spline 3, a high-speed rotary joint 4, a cap screwing head 5, a rotary driving structure 6 and a cam follower 7, wherein the sliding sleeve 2 is sleeved on the main shaft 1, the cam follower 7 is arranged at the top end of the main shaft 1, the ball spline 3 is a hollow shaft, the ball spline 3 and the main shaft 1 are connected through a bearing 8, the top end of the ball spline 3 extends into the main shaft 1 from the bottom end of the main shaft 1 and is connected with the high-speed rotary joint 4, the bottom end of the ball spline 3 extends out of the main shaft 1 from the bottom end of the main shaft 1 and is connected with the cap screwing head 5, and the rotary driving structure 6 is connected with the ball spline 3.
During operation, the cam follower 7 and the cam disc (not shown) are matched with each other to drive the main shaft 1 to slide up and down along the sliding sleeve 2, the main shaft 1 drives the cap screwing head 5 to lift through the ball spline 3, meanwhile, the high-speed rotary joint 4 is connected with the air tap (not shown), compressed air enters the cap screwing head 5 from the air tap through the inside of the ball spline 3, the cap screwing head 5 is driven to grip a cap, the rotary driving structure 6 drives the ball spline 3 to rotate, the ball spline 3 drives the cap screwing head 5 to rotate, the bottle cap is screwed on a packaging bottle, and the high-speed rotary joint 4 and the main shaft 1 do not rotate in the rotating process of the ball spline 3.
The cap screwing head 5 is connected with the ball spline 3 in a sealing way through an O-shaped ring 9.
There is no relative movement between the cap screwing head 5 and the ball spline 3, the O-shaped ring 9, the cap screwing head 5 and the ball spline 3 are static seals, the seals are relatively reliable, no air leakage exists, and the cap grabbing stability of the cap screwing head 5 is improved.
The ball spline 3 is provided with a limiting ring 10, the ball spline 3 is sleeved with a spring 11, and the spring 11 is positioned between the limiting ring 10 and a flange 12 of the ball spline 3.
The spring 11 can play a role of buffering.
The rotary drive structure 6 is arranged on a mounting seat 13, and the mounting seat 13 is fixed with the main shaft 1.
The rotary driving structure 6 comprises a servo motor 14 and a transmission structure, wherein the servo motor 14 is arranged on the mounting seat 13, the transmission structure is arranged in the mounting seat 13, and the servo motor 14 is connected with a spline housing 15 of the ball spline 3 through the transmission structure.
The transmission structure comprises a driving gear 16, a synchronous belt 17 and a driven gear 18, wherein the driving gear 16 is connected with the output end of the servo motor 14, the driven gear 18 is sleeved on the spline housing 15 of the ball spline 3, and the synchronous belt 17 is sleeved on the driving gear 16 and the driven gear 18.
When the ball spline 3 is driven to rotate, the servo motor 14 drives the driving gear 16 to rotate, and the driving gear 16 drives the driven gear 18 to drive the ball spline 3 to rotate through the synchronous belt 17, so that the ball spline 3 drives the cap screwing head 5 to rotate to screw the cap.
The foregoing detailed description is directed to embodiments of the utility model which are not intended to limit the scope of the utility model, but rather to cover all modifications and variations within the scope of the utility model.
Claims (6)
1. A spiral cover mechanism which is characterized in that: including main shaft, sliding sleeve, ball spline, high-speed rotary joint, spiral cover head, rotary drive structure, cam follower, the sliding sleeve suit is in on the main shaft, the cam follower sets up the top of main shaft, ball spline is the hollow shaft, ball spline with connect through the bearing between the main shaft, just ball spline's top is followed the bottom of main shaft stretches into in the main shaft, and with high-speed rotary joint connects, ball spline's bottom is followed the bottom of main shaft stretches out outside the main shaft, and with the spiral cover head is connected, rotary drive structure with ball spline connects.
2. A capping mechanism as claimed in claim 1 wherein: the spiral cover head is in sealing connection with the ball spline through an O-shaped ring.
3. A capping mechanism as claimed in claim 2 wherein: the ball spline is provided with a limiting ring, the ball spline is sleeved with a spring, and the spring is positioned between the limiting ring and the flange plate of the ball spline.
4. A capping mechanism as claimed in claim 3 wherein: the rotary driving structure is arranged on the mounting seat, and the mounting seat is fixed with the main shaft.
5. A capping mechanism as claimed in claim 4 wherein: the rotary driving structure comprises a servo motor and a transmission structure, wherein the servo motor is arranged on the mounting seat, the transmission structure is arranged in the mounting seat, and the servo motor is connected with the spline housing of the ball spline through the transmission structure.
6. A capping mechanism as claimed in claim 5 wherein: the transmission structure comprises a driving gear, a synchronous belt and a driven gear, wherein the driving gear is connected with the output end of the servo motor, the driven gear is sleeved on a spline housing of the ball spline, and the synchronous belt is sleeved on the driving gear and the driven gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323054754.9U CN220951125U (en) | 2023-11-10 | 2023-11-10 | Spiral cover mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323054754.9U CN220951125U (en) | 2023-11-10 | 2023-11-10 | Spiral cover mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220951125U true CN220951125U (en) | 2024-05-14 |
Family
ID=90981449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323054754.9U Active CN220951125U (en) | 2023-11-10 | 2023-11-10 | Spiral cover mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220951125U (en) |
-
2023
- 2023-11-10 CN CN202323054754.9U patent/CN220951125U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |