Medicine bottle cap screwing degree adjustable cap screwing device

Abstract

A cap screwing device capable of adjusting the screwing degree of medicine bottle caps comprises a rack, a lifting table, a cap screwing head, a rotating shaft, a cap screwing motor, a push rod lifting air cylinder and a driving rod, a sliding groove is vertically formed in the outer wall of the driving rod, and the sliding groove is in sliding fit with a positioning protrusion of the lifting table; the center of the driving rod is in threaded connection with a lifting screw, the lifting screw and a sleeve outside the driving rod are assembled into a whole, the lifting screw can rotate relative to the sleeve, and the lower end of the sleeve is installed on a lifting table. According to the cap screwing device capable of adjusting the screwing degree of the medicine bottle cap, it can be guaranteed that the screwing degree meets the requirement.

Description

Technical Field

[0001] This utility model relates to capping equipment, and in particular to a capping device with adjustable tightness for medicine bottle caps. Background Technology

[0002] After filling medicine bottles, the caps need to be automatically tightened. The capping equipment purchased by our company is basically the same in structure as the "Capping Device of Filling and Capping Machine" with patent application number "201620376087.7". Since the capping equipment is a purchased finished product, although the capping head in the capping equipment can be replaced according to the capping size and dimensions of different medicine bottles, different caps require different tightening forces. Moreover, the tightening adjustment of bottle caps of different specifications and products is often very subtle. If the tightening is slightly too high, it will cause cracks at the neck of the bottle, which cannot be detected by the subsequent inspection equipment; if the tightening is slightly too low, it will cause air leakage and loosening later. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a capping device with adjustable tightness for medicine bottle caps, which can be appropriately adjusted to ensure that the tightness meets the requirements, and is simple and reliable.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] An adjustable capping device for medicine bottles includes a frame, a lifting platform, a capping head, a rotating shaft, a capping motor, a push rod lifting cylinder, and a drive rod. The outer wall of the drive rod is vertically provided with a sliding groove, which slides in cooperation with the positioning protrusion of the lifting platform. A lifting screw is threaded to the center of the drive rod. The lifting screw and the sleeve outside the drive rod are assembled into a whole, and the lifting screw can rotate relative to the sleeve. The lower end of the sleeve is mounted on the lifting platform.

[0006] The lifting screw is rotatably connected to the sleeve via a flat ball bearing.

[0007] The upper end of the lifting screw is fitted with an operating wheel, the lower end of the operating wheel rests against the end face of the sleeve, and the side thread of the operating wheel is screwed into the adjusting screw, which extends into the limiting hole of the lifting screw and is tightened.

[0008] This utility model provides a capping device with adjustable bottle cap tightness, which has the following technical effects: the fixed connection between the drive rod and the lifting platform 2 in the patent "Capping Device of Filling and Capping Machine" with application number "201620376087.7" is changed to a threaded connection. This allows for overall adjustment of the lifting platform 2 and its various mechanisms, realizing the lifting adjustment of the capping head. Since the threaded rotation allows for stepless adjustment and the lifting distance can be varied in millimeters, micro-adjustment is achieved, ensuring that the tightness of the bottle cap can be precisely controlled. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0010] Figure 1 This is a schematic diagram of the present invention.

[0011] Figure 2 This is a partial cross-sectional view (first state) of the present invention.

[0012] Figure 3 This is a top sectional view of the drive rod and lifting platform in this utility model.

[0013] Figure 4 This is a partial cross-sectional view (second state) of the present invention.

[0014] In the diagram: 1. Frame; 2. Lifting platform; 3. Capping head; 4. Rotating shaft; 5. Capping motor; 6. Push rod lifting cylinder; 7. Drive rod; 8. Slide groove; 9. Threaded hole; 10. Lifting screw; 11. Sleeve; 12. Operating wheel; 13. Adjusting screw; 14. Limiting part; 15. Flat ball bearing; 16. Guide cylinder. Detailed Implementation

[0015] like Figure 1-4 As shown, a capping device with adjustable bottle cap tightness adopts the main equipment of the patent "Capping Device for Filling and Capping Machine" with application number "201620376087.7", including a frame 1, a lifting platform 2, a capping head 3, a rotating shaft 4, a capping motor 5, a push rod lifting cylinder 6, and a drive rod 7. Unlike this device, the drive rod 7 passes through the lifting platform 2 and slides with the positioning protrusion of the lifting platform 2 via a sliding groove 8. The drive rod 7 has a threaded hole 9 at its center, into which a lifting screw 10 is screwed. A sleeve 11 is fitted onto the part of the drive rod 7 extending outside the lifting platform 2, and the sleeve 11 is fixed to the lifting platform 2 by screws. The top end of the lifting screw 10 extends out of the sleeve 11 and is tightened against the operating wheel 12 at the top of the sleeve 11 via an adjusting screw 13 on the side.

[0016] Preferably, a limiting part 14 is provided at the upper end of the lifting screw 10, and a flat ball bearing 15 is installed between the upper end of the limiting part 14 and the top of the sleeve 11. This allows the sleeve 11 and the lifting screw 10 to rise and fall simultaneously as a whole, and the lifting screw 10 can rotate relative to the sleeve 11. The flat ball bearing 15 provides support and relative rotation.

[0017] Preferably, a guide cylinder 16 is fixed on the frame 1 at the drive rod 7, and the guide cylinder 16 guides the drive rod 7 to move up and down.

[0018] The drive rod 7 is driven by a cylinder to move up and down.

[0019] Working principle and process:

[0020] 1) During normal operation of the equipment, the equipment operates in accordance with the operating principle of the patent "Capping Device of Filling and Capping Machine" with application number "201620376087.7".

[0021] 2) When a problem of loose screws or broken screws is found during intermediate sampling, the equipment is stopped, and the drive rod 7 remains stationary. The operating wheel 12 is slowly rotated, causing the lifting screw 10 to rotate relative to the drive rod 7 and move up and down. The up-and-down movement of the lifting screw 10 simultaneously moves the sleeve 11 up and down, which in turn moves the lifting platform 2 linearly up and down relative to the drive rod 7. This allows for adjustment of the up-and-down movement of all components on the lifting platform 2, thus fine-tuning the distance between the lower end of the capping head 3 and the bottle cap. Decreasing the distance between the capping head 3 and the bottle cap results in greater pressure and a tighter screw; conversely, increasing the distance reduces pressure and reduces the tightness. Adjusting the height eliminates the problem of loose screws or broken bottle necks caused by excessive tightness.

Claims

1. A capping device with adjustable tightness for medicine bottle caps, comprising a frame (1), a lifting platform (2), a capping head (3), a rotating shaft (4), a capping motor (5), a push rod lifting cylinder (6), and a drive rod (7), characterized in that: The outer wall of the drive rod (7) is vertically provided with a sliding groove (8), which slides in cooperation with the positioning protrusion of the lifting platform (2); the center of the drive rod (7) is threaded with a lifting screw (10), the lifting screw (10) and the sleeve (11) outside the drive rod (7) are assembled into a whole and the lifting screw (10) can rotate relative to the sleeve (11), and the lower end of the sleeve (11) is installed on the lifting platform (2).

2. The adjustable capping device for medicine bottle caps according to claim 1, characterized in that: The lifting screw (10) is rotatably connected to the sleeve (11) via a flat ball bearing (15).

3. The adjustable capping device for medicine bottle caps according to claim 1, characterized in that: The upper end of the lifting screw (10) is fitted with an operating wheel (12), the lower end of the operating wheel (12) rests on the end face of the sleeve (11), and the side of the operating wheel (12) is threaded into the adjusting screw (13), and the adjusting screw (13) extends into the limiting hole of the lifting screw (10) and is tightened.

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