Bottle cap screwing device

Abstract

The utility model relates to a bottle cap screwing device which comprises a frame body, a motor fixedly arranged on the frame body, an electric air cylinder fixedly arranged at the output end of the motor and a clamping mechanism fixedly arranged at the moving end of the electric air cylinder. The clamping mechanism comprises a cylinder fixedly arranged at the moving end of the electric air cylinder, a first receding groove formed in the cylinder, two clamping rods symmetrically and rotatably arranged on the first receding groove, an ejector rod arranged in the first receding groove and used for driving the two clamping rods to rotate, and a spring with the two ends fixedly arranged on the first receding groove and the ejector rod correspondingly. The two clamping heads are arranged on the two clamping rods correspondingly, and the two protection assemblies are arranged on the two clamping rods correspondingly. When the bottle cap screwing device is used, when the bottle cap is screwed to a threshold value, the clamping head is automatically separated, too tight damage is prevented, the bottle cap is protected, abrasion of device parts can be reduced, and stable operation of the device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of bottle cap tightening equipment, specifically to a bottle cap screwing device. Background Technology

[0002] In the cosmetic packaging process, the cap-screwing operation is crucial. Traditional screw-on devices lack effective over-tightening designs, making it easy for the cap to become over-tightened during continuous screwing. Glass caps may crack due to excessive torque, while plastic caps may experience thread stripping or deformation, severely affecting product sealing and appearance integrity, and reducing product quality. A new cap-screwing device is now available that protects the cap from damage. Utility Model Content

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] To address the technical problems mentioned in the background section, some embodiments of this application provide a bottle cap screwing device, including a frame, a motor fixedly mounted on the frame, an electric cylinder fixedly mounted on the output end of the motor, and a clamping mechanism fixedly mounted on the moving end of the electric cylinder. The clamping mechanism includes a cylinder fixedly mounted on the moving end of the electric cylinder, a first clearance groove disposed within the cylinder, two clamping rods symmetrically and rotatably mounted on the first clearance groove, a top rod disposed within the first clearance groove for driving the two clamping rods to rotate, a spring with its two ends respectively fixed to the first clearance groove and the top rod, two clamping heads respectively disposed on the two clamping rods, and two sets of protective components respectively disposed on the two clamping rods.

[0005] Specifically, the protection component includes a first slide groove on the clamping rod, a slide rod movably disposed in the first slide groove, a second slide groove on the clamping rod, a limiting pin fixedly disposed on the slide rod, and compression springs fixed at both ends on the first slide groove and the slide rod respectively; the clamping head is detachably disposed on the slide rod; and the limiting pin is movably disposed in the second slide groove.

[0006] Specifically, the protection assembly further includes a second clearance groove disposed on the clamping rod and communicating with the first sliding groove, a circular plate movably disposed in the second clearance groove, and a bolt fixedly disposed on the circular plate; the bolt is threadedly engaged with the clamping rod; one end of the compression spring is fixedly disposed on the circular plate.

[0007] Specifically, the gripper head is provided with multiple anti-slip strips on the side near the bottle cap.

[0008] Specifically, a trapezoidal block is fixedly provided on the slide rod, and a first slot is provided on the trapezoidal block; a second slot with the same shape as the trapezoidal block is provided on the clamping head, and a clamping block corresponding to the first slot is fixedly provided on the clamping head.

[0009] Specifically, the top rod includes a top block movably disposed in the first clearance groove, a fixing rod fixedly disposed below the top block, and a pressure block fixedly disposed below the fixing rod.

[0010] Specifically, an elastic block is fixedly provided above the top block; one end of the spring is fixedly provided on the elastic block.

[0011] The beneficial effects of this utility model are:

[0012] When using this screw-on device, first start the electric cylinder to move the clamping mechanism downwards. When the push rod touches the bottle cap, it moves upwards relative to the cylinder, thus pushing the two clamping rods to rotate, bringing them closer together. The two clamping heads then grip the bottle cap. Next, start the motor to rotate the clamping mechanism and tighten the bottle cap. After the bottle cap is tightened, the torque increases, and the reaction force on the clamping heads increases, which is equivalent to the bottle cap exerting an outward pushing force on the clamping heads. When the pushing force exceeds the elastic force of the compression spring, the clamping heads move and separate from the bottle cap. The cap will not be tightened further, avoiding cap breakage and thread deformation caused by continuous forceful tightening; the cooperation between the limiting pin and the second slide groove prevents the slide rod from rotating in the first slide groove, ensuring that the clamping head only moves radially along the slide rod when pushed apart, ensuring stable clamping head separation action; the limiting pin can limit the extension of the clamping head. When not in use, the clamping head slides outward under the push of the compression spring until the limiting pin is blocked by the second slide groove, ensuring that the extension length of the two clamping heads is consistent, ensuring that the two clamping heads are centered and clamped, and preventing the cap from tilting. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0014] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0015] In the attached diagram:

[0016] Figure 1 This is a structural diagram of the present invention;

[0017] Figure 2 This is a side view of the present invention;

[0018] Figure 3for Figure 2 AA-line sectional view;

[0019] Figure 4 This is a structural diagram of the clamping head in this utility model;

[0020] Figure 5 for Figure 4 BB line section view. Detailed Implementation

[0021] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0022] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0023] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0024] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0025] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Reference Figures 1-5 As shown, the bottle cap screwing device of this utility model includes a frame 1, a motor 2 fixedly mounted on the frame 1, an electric cylinder 3 fixedly mounted on the output end of the motor 2, and a clamping mechanism 4 fixedly mounted on the moving end of the electric cylinder 3. The clamping mechanism 4 includes a cylinder 41 fixedly mounted on the moving end of the electric cylinder 3, a first clearance groove 42 disposed in the cylinder 41, two clamping rods 43 symmetrically and rotatably disposed on the first clearance groove 42, a top rod 44 disposed in the first clearance groove 42 for driving the two clamping rods 43 to rotate, a spring 45 with its two ends fixedly mounted on the first clearance groove 42 and the top rod 44 respectively, two clamping heads 46 respectively disposed on the two clamping rods 43, and two sets of protective components 47 respectively disposed on the two clamping rods 43.

[0027] Specifically, the protective component 47 includes a first slide groove 471 on the clamping rod, a slide rod 472 movably disposed in the first slide groove 471, a second slide groove 473 on the clamping rod, a limiting pin 474 fixedly disposed on the slide rod 472, and a compression spring 475 with its two ends respectively fixed on the first slide groove 471 and the slide rod 472; the clamping head 46 is detachably disposed on the slide rod 472; and the limiting pin 474 is movably disposed in the second slide groove 473.

[0028] When using this screw-on device, first start the electric cylinder 3 to drive the clamping mechanism 4 to move downwards. When the push rod 44 touches the bottle cap, the push rod 44 moves upwards relative to the cylinder 41, thereby pushing the two clamping rods 43 to rotate, bringing the two clamping rods 43 closer together. The two clamping heads 46 then clamp the bottle cap. Then, start the motor 2 to drive the clamping mechanism 4 to rotate and tighten the bottle cap. After the bottle cap is tightened, the torque it receives increases, and the reaction force on the clamping head 46 increases. This is equivalent to the bottle cap exerting an outward pushing force on the clamping head 46. When the pushing force is greater than the elastic force of the compression spring 475, the clamping head 46 moves and separates from the bottle cap, and the bottle cap will no longer be screwed on. The first slide rail 471 is tightened to prevent the bottle cap from cracking or the threads from deforming due to continuous force. The cooperation between the limiting pin 474 and the second slide rail 473 can prevent the slide rod 472 from rotating in the first slide rail 471, ensuring that the clamping head 46 only moves radially along the slide rod 472 when it is pushed apart, thus ensuring the stability of the clamping head 46's separation action. The limiting pin 474 can limit the extension of the clamping head 46. When not in use, the clamping head 46 slides outward under the push of the compression spring 475 until the limiting pin 474 is blocked by the second slide rail 473, ensuring that the extension length of the two clamping heads 46 is consistent, ensuring that the two clamping heads 46 are centered and clamped, and preventing the bottle cap from tilting.

[0029] Specifically, the protection component 47 further includes a second clearance groove 476 disposed on the clamping rod and communicating with the first sliding groove 471, a circular plate 477 movably disposed in the second clearance groove 476, and a bolt 478 fixedly disposed on the circular plate 477; the bolt 478 is threadedly engaged with the clamping rod; one end of the compression spring 475 is fixedly disposed on the circular plate 477.

[0030] When the bolt 478 is rotated, the spring force of the compression spring 475 increases as the bolt 478 moves the circular plate 477 toward the clamping head 46, making it suitable for bottle caps that can withstand larger torques. Conversely, when the bolt 478 moves the circular plate 477 in the opposite direction, the spring force of the compression spring 475 decreases, making it suitable for more fragile bottle caps, thus significantly improving the equipment versatility of the screwing device.

[0031] Specifically, the clamping head 46 is provided with multiple anti-slip strips 461 on the side near the bottle cap.

[0032] Anti-slip strip 461 increases the friction between the clamping head 46 and the bottle cap, preventing slippage.

[0033] Specifically, a trapezoidal block 479 is fixedly provided on the slide rod 472, and a first slot 480 is provided on the trapezoidal block 479; a second slot 481 with the same shape as the trapezoidal block 479 is provided on the clamping head 46, and a clamping block 482 corresponding to the first slot 480 is fixedly provided on the clamping head 46.

[0034] The slide bar 472 and the clamping head 46 are detachable, allowing for the replacement of different clamping heads 46 to fit bottle caps of different diameters. Furthermore, during the tightening of the bottle cap, the trapezoidal block 479 and the second slot 481, and the block 482 and the first slot 480 will gradually lock together under force, preventing the clamping head 46 from falling off the slide bar 472 during use.

[0035] Specifically, the top rod 44 includes a top block 441 movably disposed in the first clearance groove 42, a fixing rod 442 fixedly disposed below the top block 441, and a pressure block 443 fixedly disposed below the fixing rod 442.

[0036] Specifically, an elastic block 444 is fixedly provided above the top block 441; one end of the spring 45 is fixedly provided on the elastic block 444.

[0037] When the pressure block 443 moves upward, it drives the top block 441 to move upward. The elastic block 444 on the top block 441 contacts the two clamping rods 43 and pushes the two clamping rods 43 to rotate, so that the two clamping heads 46 clamp the bottle cap. When the clamping head 46 is subjected to a large reaction force from the bottle cap, one end of the two clamping rods 43 connected to the clamping head 46 tends to rotate outward, while the other end presses the elastic block 444, causing the elastic block 444 to deform and further improve the protection effect.

[0038] In summary, this bottle cap tightening device can protect the bottle cap. When the bottle cap is tightened to the threshold, the clamping head 46 automatically separates to prevent damage from overtightening. It not only protects the bottle cap but also reduces wear on the device components and ensures stable operation of the device.

[0039] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A bottle cap screwing device, comprising a frame, a motor fixedly mounted on the frame, an electric cylinder fixedly mounted on the output end of the motor, and a clamping mechanism fixedly mounted on the moving end of the electric cylinder, characterized in that: The clamping mechanism includes a cylinder fixed to the moving end of the electric cylinder, a first clearance groove inside the cylinder, two clamping rods symmetrically and rotatably disposed on the first clearance groove, a top rod disposed in the first clearance groove for driving the two clamping rods to rotate, a spring with its two ends fixed to the first clearance groove and the top rod respectively, two clamping heads disposed on the two clamping rods respectively, and two sets of protective components disposed on the two clamping rods respectively.

2. The bottle cap screwing device according to claim 1, characterized in that: The protective assembly includes a first slide groove on the clamping rod, a slide rod movably disposed in the first slide groove, a second slide groove on the clamping rod, a limiting pin fixedly disposed on the slide rod, and compression springs fixed at both ends on the first slide groove and the slide rod respectively; the clamping head is detachably disposed on the slide rod; and the limiting pin is movably disposed in the second slide groove.

3. The bottle cap screwing device according to claim 2, characterized in that: The protective assembly also includes a second clearance groove disposed on the clamping rod and communicating with the first sliding groove, a circular plate movably disposed in the second clearance groove, and a bolt fixedly disposed on the circular plate; the bolt is threadedly engaged with the clamping rod; one end of the compression spring is fixedly disposed on the circular plate.

4. The bottle cap screwing device according to claim 3, characterized in that: The gripper head is fixed with multiple anti-slip strips on the side near the bottle cap.

5. A bottle cap screwing device according to claim 4, characterized in that: A trapezoidal block is fixedly provided on the slide rod, and a first slot is provided on the trapezoidal block; a second slot with the same shape as the trapezoidal block is provided on the clamping head, and a clamping block corresponding to the first slot is fixedly provided on the clamping head.

6. The bottle cap screwing device according to claim 1, characterized in that: The top rod includes a top block movably disposed in the first clearance groove, a fixing rod fixedly disposed below the top block, and a pressure block fixedly disposed below the fixing rod.

7. A bottle cap screwing device according to claim 6, characterized in that: An elastic block is fixedly provided above the top block; one end of the spring is fixedly provided on the elastic block.

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