Cosmetic bottle cap screwing clamp

By designing a combination structure of a support disc and a movable arm for a cosmetic bottle capping fixture, and utilizing elastic elements to gradually increase the clamping force, the problem of insufficient clamping force during the capping process is solved, thereby improving the reliability and sealing of the capping.

CN224062404UActive Publication Date: 2026-03-31SHANGHAI LIHUA COSMETICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The clamping force of the existing capping machine's jaws cannot increase with the tightening degree, which leads to problems such as slippage or poor sealing during the capping process.

Method used

A cosmetic bottle capping clamp was designed, which adopts a combination structure of a support disc, a movable shaft, a movable arm, a bushing, a connecting rod and an elastic element. The clamping force of the clamping block is gradually increased by the compression of the elastic element, avoiding external air circuit drive.

Benefits of technology

This design achieves a gradual increase in clamping force during the capping process, avoiding slippage and incomplete sealing, and improving the reliability and sealing performance of the cap.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224062404U_ABST
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Abstract

The utility model relates to the technical field of tool clamps, and particularly discloses a cosmetic bottle cap screwing clamp which comprises a supporting disc, a movable shaft, a movable arm, a shaft sleeve, a connecting rod, an elastic piece and a connecting piece. The supporting disc is horizontally arranged, a through hole is formed in the circle center of the supporting disc, and the movable shaft is arranged in the through hole in a sliding fit mode; the top end of the movable shaft is in threaded connection with the shaft sleeve, the bottom end of the movable shaft is fixedly connected with a pressing block, the elastic piece is arranged between the pressing block and the supporting disc in an abutting mode, the supporting disc is provided with a plurality of sliding grooves extending in the radial direction of the supporting disc, and a movable arm is slidably connected into each sliding groove. The bottom end of the movable arm is connected with a clamping block, a connecting rod is hinged between the top end of the movable arm and the shaft sleeve, and the connecting piece is used for connecting the supporting disc with an output shaft of a cap screwing motor. According to the cap screwing clamp, the clamping force on a bottle cap can be increased along with cap screwing, and the cap screwing effect is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to tool fixture technical field, especially relate to a cosmetic bottle screw cap clamp. BACKGROUND

[0002] In the cosmetic bottle packaging process, the screw cap machine is needed to seal the cosmetic bottle in batches. The working process of the screw cap machine is as follows: first, the cap is placed on the bottle mouth through the tool, then the bottle body is transported to the destination position and fixed, the claw above the bottle body moves down to the cap to apply a fixed force to clamp the cap, then the claw moves down and rotates to drive the cap to be screwed with the threads of the bottle mouth, then the claw is loosened, and the bottle body is sent to the next station. In the prior art, the claw usually adopts a pneumatic claw, and the clamping force of the claw is constant. However, the resistance of the screw cap increases with the degree of tightening, but the clamping force of the claw does not increase accordingly, which may cause slipping or even sealing failure during the screwing process. SUMMARY

[0003] To solve the problems mentioned in the background art, the purpose of the utility model is to provide a cosmetic bottle screw cap clamp.

[0004] In order to achieve the above-mentioned target, the technical scheme of the utility model is as follows:

[0005] A cosmetic bottle screw cap clamp, comprising a support disc, a movable shaft, a movable arm, a shaft sleeve, a connecting rod, an elastic member and a connecting piece, the support disc is horizontally arranged and a through hole is formed at the center, the movable shaft is slidingly fitted in the through hole, the top end of the movable shaft is threadedly connected with the shaft sleeve, the bottom end of the movable arm is fixedly connected with a pressing block, the pressing block and the support disc are provided with the elastic member therebetween, a plurality of sliding grooves extending along the radial direction of the support disc are formed on the support disc, the sliding grooves are arranged in a circle, each sliding groove is slidingly connected with a movable arm, the movable arm penetrates through the support disc, the bottom end of the movable arm is connected with a clamping block, the connecting rod is hingedly connected between the top end of the movable arm and the shaft sleeve, and the connecting piece is used to connect the support disc with the output shaft of the screw cap motor.

[0006] Further, the clamping block is arc-shaped, and the inner wall of the clamping block is connected with a rubber pad.

[0007] Further, the connecting piece comprises a main connecting shaft, a connecting disc and a plurality of auxiliary connecting shafts, a plurality of auxiliary connecting shafts are fixedly arranged on the top of the support disc in the longitudinal direction, the top of the auxiliary connecting shafts is fixedly connected with the connecting disc, the top of the connecting disc is fixedly arranged with the main connecting shaft in the longitudinal direction, the main connecting shaft is coaxially arranged with the support disc, and the top of the main connecting shaft is provided with a connecting flange.

[0008] Further, the elastic member is a compression spring, and the compression spring is sleeved on the movable shaft.

[0009] The beneficial effect of the utility model is that the pressing block is used for contacting the top of the bottle cap, the clamping block is used for clamping the bottle cap, when the cap is screwed, the downward movement of the supporting disc will make the pressing block contact the bottle cap first, the further tightening of the multiple movable arms will be caused by the continuous descending of the supporting disc, so that the clamping force of the clamping block on the bottle cap is increased, the effect of gradually increasing the clamping force along with the screwing of the cap is realized, and the whole device does not need external air circuit to drive the clamping block. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is a perspective view of the utility model embodiment;

[0011] Fig. 2 It is a sectional view of the utility model embodiment.

[0012] The number of the drawing is explained: 1, supporting disc, 11, through hole, 12, sliding slot, 13, auxiliary connecting shaft, 2, movable shaft, 21, pressing block, 3, movable arm, 31, clamping block, 32, rubber pad, 4, shaft sleeve, 5, connecting rod, 6, elastic member, 7, main connecting shaft, 71, connecting disc, 72, connecting flange. DETAILED DESCRIPTION

[0013] The technical scheme in the utility model embodiments will be described clearly and completely below in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all the other embodiments obtained by the person skilled in the art belong to the protection scope of the utility model.

[0014] As Figs. 1-2As shown, a cosmetic bottle cap rotating clamp, including support disc 1, movable shaft 2, movable arm 3, shaft sleeve 4, connecting rod 5, elastic element 6 and connecting piece, support disc 1 is horizontally arranged and a through hole 11 is formed at the center, movable shaft 2 is slidingly fitted in the through hole 11, the top end of movable shaft 2 is threadedly connected with shaft sleeve 4, the bottom end is fixedly connected with pressing block 21, elastic element 6 is arranged between pressing block 21 and support disc 1, elastic element 6 is a compression spring, the compression spring is sleeved on movable shaft 2, three slide grooves 12 extending along the radial direction of support disc 1 are formed on support disc 1, the three slide grooves 12 are arranged in a circle, one movable arm 3 is slidingly connected in each slide groove 12, movable arm 3 is vertically arranged and penetrates support disc 1, the bottom end of movable arm 3 is connected with clamping block 31, clamping block 31 is arc-shaped, the inner wall of clamping block 31 is connected with rubber pad 32, connecting rod 5 is hingedly connected between the top end of movable arm 3 and the outer circumferential surface of shaft sleeve 4, the connecting piece is used for connecting support disc 1 with the output shaft of the cap rotating motor, specifically, the connecting piece includes main connecting shaft 7, connecting disc 71 and a plurality of auxiliary connecting shafts 13, three auxiliary connecting shafts 13 are fixedly arranged on the top of support disc 1, connecting disc 71 is fixedly connected to the top of the three auxiliary connecting shafts 13, main connecting shaft 7 is fixedly arranged on the top of connecting disc 71, main connecting shaft 7 is coaxially arranged with support disc 1, connecting flange 72 is arranged on the top of main connecting shaft 7, connecting flange 72 is used for connecting the output shaft of the cap rotating motor (not shown in the figure, it can be understood that the cap rotating motor can be lifted and lowered).

[0015] In actual use, after the bottle body is moved to below support disc 1 and fixed, the cap rotating motor is driven to descend, the downward movement of support disc 1 will make pressing block 21 first contact the bottle cap, and the continuous downward movement of support disc 1 will make the three movable arms 3 further tighten, thereby increasing the clamping force of clamping block 31 on the bottle cap, achieving the effect of gradually increasing the clamping force with the rotation of the cap, and the whole device does not need to be externally connected with an air circuit to drive clamping block 31.

[0016] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cosmetic bottle cap screwing jig characterized by comprising: The utility model provides a support disc (1), movable axle (2), movable arm (3), axle sleeve (4), connecting rod (5), elastic element (6) and connecting piece are included, the support disc (1) horizontal arrangement and the center of circle is equipped with through -hole (11), movable axle (2) is slidably fitted in through -hole (11), the top end of movable axle (2) is connected with axle sleeve (4), the bottom end of movable is fixedly connected with pressure block (21), and the pressure block (21) is located with the support disc (1) between the elastic element (6) of setting, the support disc (1) is equipped with a plurality of sliding slot (12) along the radial direction of itself, a plurality of sliding slot (12) is arranged in circle, and each sliding slot (12) is slidably connected with a movable arm (3), and movable arm (3) penetrates the support disc (1), and the bottom end of movable arm (3) is connected with clamping block (31), and the top end of movable arm (3) is hinged with connecting rod (5) between axle sleeve (4), and the connecting piece is used to connect the support disc (1) with the output shaft of cap motor.

2. A cosmetic bottle cap screwing jig according to claim 1, wherein The clamping block (31) is arc-shaped, and the inner wall of the clamping block (31) is connected with a rubber pad (32).

3. A cosmetic bottle cap screwing jig according to claim 1, wherein The connecting piece includes a main connecting shaft (7), a connecting disc (71), and a plurality of auxiliary connecting shafts (13). The top of the support disc (1) is longitudinally fixed with a plurality of auxiliary connecting shafts (13). The top of the plurality of auxiliary connecting shafts (13) is fixedly connected with the connecting disc (71). The top of the connecting disc (71) is longitudinally fixed with the main connecting shaft (7). The main connecting shaft (7) is coaxially arranged with the support disc (1). The top of the main connecting shaft (7) is provided with a connecting flange (72).

4. A cosmetic bottle cap screwing jig according to claim 1, wherein The elastic element (6) is a compression spring, and the compression spring is sleeved on the movable axle (2).