Novel cap pre-screwing structure

Abstract

The utility model belongs to the field of cap pre-screwing structures, and particularly relates to a novel cap pre-screwing structure which comprises an installation arm, a driving assembly is arranged on the upper surface of the installation arm, a cap taking assembly is arranged on the inner wall of the installation arm, the cap taking assembly comprises a rotating connector, and the end face of the rotating connector is rotationally connected with the end face of a vacuum tube. According to the novel cap pre-screwing structure, when a bottle cap is installed, air in the vacuum pipe is pumped out through an external vacuum pump, the interior of the vacuum pipe is in a negative pressure state, the cap taking assembly is pushed by external power to integrally move downwards, and when the suction cup carries the bottle cap to make contact with a bottle opening, the outer pipe abuts against the bottle cap, and the vacuum pipe stops moving downwards; at the moment, the reset spring is compressed, the top end of the reset spring abuts against the bottom of the sleeve, the lower end of the reset spring abuts against the step of the vacuum pipe, meanwhile, the driving assembly drives the bottle cap to rotate through the cap taking assembly, the bottle cap is installed on the bottle opening, and after installation is completed, the cost of mass production of the device is low.

Description

Technical Field

[0001] This utility model relates to the field of pre-screw cap structure technology, specifically a novel pre-screw cap structure. Background Technology

[0002] The pre-capping device is mainly used to pre-rotate the bottle cap before it is fully screwed onto the bottle neck, making it easier and more accurate to align and tighten. This device reduces resistance and friction during the capping process, improves capping efficiency, and reduces the capping failure rate caused by improper alignment. Automated operation reduces the need for manual intervention and lowers the labor intensity of workers. The pre-capping device is widely used in many industries such as food, beverage, cosmetics, and pharmaceuticals. It is an indispensable piece of equipment, especially on automated production lines that require high-efficiency and high-quality capping.

[0003] Currently, in existing technologies, cap-retrieving structures play a crucial role in automated production lines. However, their single-function nature often becomes a bottleneck for improving production efficiency and reducing costs. In traditional setups, cap retrieval and pre-capping are usually two independent workstations. This separate design not only increases the complexity of the production line but also leads to resource waste and increased manufacturing costs. Therefore, we propose a novel pre-capping structure. Utility Model Content

[0004] The main objective of this invention is to provide a novel pre-screw cap structure that can solve the problems mentioned in the above-mentioned technical background.

[0005] To achieve the above objectives, this utility model proposes a novel pre-screw cap structure, including a mounting arm, a driving assembly disposed on the upper surface of the mounting arm, and a cap-removing assembly disposed on the inner wall of the mounting arm, the cap-removing assembly comprising:

[0006] A rotary joint, wherein the end face of the rotary joint is rotatably connected to the end face of the vacuum tube, a limiting block is fixedly connected to the surface of the vacuum tube, the surface of the limiting block is slidably connected to the inner wall of the limiting waist hole, the limiting waist hole is opened on the surface of the sleeve, and the surface of the sleeve is sleeved with the surface of the vacuum tube.

[0007] Preferably, the bottom surface of the sleeve is engaged with the inner ring of the bearing, the bearing is disposed on the inner wall of the mounting arm, the bottom surface of the sleeve abuts against one end of the return spring, the other end of the return spring abuts against the step of the vacuum tube, the inner wall of the copper sleeve is fixedly connected to the surface of the vacuum tube, and the copper sleeve is disposed on the inner wall of the mounting arm.

[0008] Preferably, an outer tube is fitted onto the surface of the vacuum tube, and a suction cup is fixedly connected to the end face of the vacuum tube.

[0009] Preferably, the inner wall of the mounting arm is fixedly connected to the outer ring of the bearing.

[0010] Preferably, the inner wall of the mounting arm is rotatably connected to the surface of the copper sleeve.

[0011] Preferably, both the mounting arm and the cover removal assembly are provided with driving components on their surfaces.

[0012] This utility model provides a novel pre-screw cap structure. It has the following beneficial effects:

[0013] This novel pre-capping structure, through its cap-picking component, utilizes an external vacuum pump to evacuate the air from the vacuum tube during cap installation, creating a negative pressure environment. Driven by external power, the cap-picking component moves downwards. When the suction cup carrying the cap contacts the bottle opening, the outer tube abuts against the cap, stopping the vacuum tube's downward movement. At this point, the return spring is compressed and stores a certain amount of elasticity. The top of the return spring abuts against the bottom of the sleeve, and the bottom of the return spring abuts against the step of the vacuum tube. Simultaneously, the drive component rotates the cap via the cap-picking component, installing the cap onto the bottle opening. After installation, the machine stops moving. This mechanism combines vacuum cap picking and capping, achieving multifunctionality while maintaining a simple structure, thus reducing manufacturing costs compared to existing technologies. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the disassembly structure of the cap removal component of this utility model.

[0018] The reference numerals in the attached diagrams are as follows: 1. Mounting arm; 2. Drive assembly; 3. Cover removal assembly; 301. Rotary joint; 302. Sleeve; 303. Limiting hole; 304. Limiting block; 305. Vacuum tube; 306. Bearing; 307. Return spring; 308. Copper sleeve; 309. Outer tube; 310. Suction cup.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3 This utility model proposes a novel pre-spinning cap structure, including a mounting arm 1. The inner wall of the mounting arm 1 is fixedly connected to the outer ring of the bearing 306, and the inner wall of the mounting arm 1 is rotatably connected to the surface of the copper sleeve 308. A drive assembly 2 is provided on the upper surface of the mounting arm 1. Both the mounting arm 1 and the cap-removing assembly 3 are provided with drive assemblies 2. The drive assembly 2 includes a motor, a synchronous pulley, a synchronous belt, a drive wheel, and a multi-point synchronous belt. The output end of the motor passes through the mounting arm 1 and is fixedly connected to the bottom surface of the synchronous pulley. The synchronous pulley is connected to the drive wheel via the synchronous belt. The drive wheel is sleeved on the sleeve 302, and multiple sets of synchronous pulleys are sleeved on the surface of the sleeve 302. The multiple sets of synchronous pulleys are connected via the multi-point synchronous belt. The inner wall of the mounting arm 1 is provided with a cap-removing assembly 3, which includes:

[0022] A rotary joint 301 is rotatably connected to the end face of a vacuum tube 305. A limiting block 304 is fixedly connected to the surface of the vacuum tube 305. The surface of the limiting block 304 is slidably connected to the inner wall of a limiting slot 303. The limiting slot 303 is located on the surface of a sleeve 302. The surface of the sleeve 302 is sleeved with the surface of the vacuum tube 305. The bottom surface of the sleeve 302 is engaged with the inner ring of a bearing 306. The bearing 306 is located on the inner wall of the mounting arm 1. The bottom surface of the sleeve 302 abuts against one end of a return spring 307. The other end of the return spring 307 abuts against a step of the vacuum tube 305. The inner wall of a copper sleeve 308 is fixedly connected to the surface of the vacuum tube 305. The copper sleeve 308 is located on the inner wall of the mounting arm 1. An outer tube 309 is sleeved on the surface of the vacuum tube 305. A suction cup 310 is fixedly connected to the end face of the vacuum tube 305. By using the cap-removing assembly 3, when installing the bottle cap, the air inside the vacuum tube 305 is evacuated by an external vacuum pump, creating a negative pressure state inside the vacuum tube 305. Under external power, the cap-removing assembly 3 moves downward as a whole. When the suction cup 310 carrying the bottle cap contacts the bottle mouth, the outer tube 309 abuts against the bottle cap, and the vacuum tube 305 stops moving downward. At this time, the return spring 307 is compressed and stores a certain amount of elasticity. The top of the return spring 307 abuts against the bottom of the sleeve 302, and the bottom of the return spring 307 abuts against the step of the vacuum tube 305. At the same time, the drive assembly 2 drives the bottle cap to rotate through the cap-removing assembly 3, installing the bottle cap onto the bottle mouth. After installation, the machine stops moving. This mechanism combines vacuum cap removal and cap screwing, achieving multiple functions while maintaining a simple structure. Compared with existing technologies, it reduces manufacturing costs.

[0023] In this invention, during use, when installing the bottle cap, the air inside the vacuum tube 305 is evacuated by an external vacuum pump, creating a negative pressure state inside the vacuum tube 305. Under external power, the cap-removing assembly 3 moves downward as a whole. When the suction cup 310 carrying the bottle cap contacts the bottle mouth, the outer tube 309 abuts against the bottle cap, and the vacuum tube 305 stops moving downward. At this time, the return spring 307 is compressed and stores a certain amount of elasticity. The top of the return spring 307 abuts against the bottom of the sleeve 302, and the bottom of the return spring 307 abuts against the step of the vacuum tube 305. At the same time, the drive assembly 2 drives the bottle cap to rotate through the cap-removing assembly 3, installing the bottle cap onto the bottle mouth. After installation, the machine stops moving.

[0024] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A novel pre-screw cap structure, comprising a mounting arm (1), characterized in that: The upper surface of the mounting arm (1) is provided with a driving assembly (2), and the inner wall of the mounting arm (1) is provided with a cap-removing assembly (3), the cap-removing assembly (3) comprising: A rotary joint (301) is provided, the end face of which is rotatably connected to the end face of a vacuum tube (305). A limiting block (304) is fixedly connected to the surface of the vacuum tube (305). The surface of the limiting block (304) is slidably connected to the inner wall of a limiting waist hole (303). The limiting waist hole (303) is opened on the surface of a sleeve (302). The surface of the sleeve (302) is sleeved with the surface of the vacuum tube (305).

2. The novel pre-screw cap structure according to claim 1, characterized in that: The bottom surface of the sleeve (302) is engaged with the inner ring of the bearing (306), the bearing (306) is disposed on the inner wall of the mounting arm (1), the bottom surface of the sleeve (302) abuts against one end of the return spring (307), the other end of the return spring (307) abuts against the step of the vacuum tube (305), the surface of the vacuum tube (305) is fixedly connected to the inner wall of the copper sleeve (308), and the copper sleeve (308) is disposed on the inner wall of the mounting arm (1).

3. The novel pre-screw cap structure according to claim 2, characterized in that: The surface of the vacuum tube (305) is fitted with an outer tube (309), and a suction cup (310) is fixedly connected to the end face of the vacuum tube (305).

4. The novel pre-screw cap structure according to claim 3, characterized in that: The inner wall of the mounting arm (1) is fixedly connected to the outer ring of the bearing (306).

5. A novel pre-screw cap structure according to claim 4, characterized in that: The inner wall of the mounting arm (1) is rotatably connected to the surface of the copper sleeve (308).

6. A novel pre-screw cap structure according to claim 5, characterized in that: Both the mounting arm (1) and the cover removal assembly (3) are provided with drive components (2).

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