Self-clamping screwing and unscrewing device

Abstract

This application discloses a self-clamping tightening and loosening device for the cylindrical portion of a cylindrical object. The device includes multiple finger-shaped members, each fitted with an eccentric rubber sleeve, for twisting and engaging the cylindrical top. After the top is removed, the clamping force on the top decreases when the resisting torque is removed or the object returns to its initial position. When not subjected to torsional loads or in the opposite direction of the designed engagement, the initial clamping state is maintained on the component, allowing for component handling. The design of this invention increases clamping force by employing directional deformation of the eccentric rubber sleeve, which can be designed as a pair if both clockwise and counterclockwise directions are required.

Description

Technical Field

[0001] This invention relates to a self-clamping tightening and loosening device. Specifically, it relates to a device that, after moving the cylindrical top of a cylindrical object, tightens and loosens the top while simultaneously holding the top in place. Background Technology

[0002] The process of tightening and loosening an item includes the following steps: holding the internal or external threaded portion of the item, aligning it with the internal threaded hole or external threaded rod, and rotating it to insert it as the threaded portion moves linearly along the thread axis.

[0003] In existing tightening and loosening devices, the clamping element for the closure is activated via a fixed control curve in which a rotating curved roller on a circular track engages with the clamping element. This is a conventional tightening or loosening device designed long ago.

[0004] PCT patent (No. WO2010118994A3) discloses a device for tightening and loosening a cap, which consists of a series of bases on the inner surface of a collar and includes a corresponding latch that can slide within the base and has a spring that pushes it toward the center of the collar.

[0005] Existing technologies for tightening and loosening caps present traditional requirements and challenges. For example, firstly, the cap should be tight enough to create a good seal, especially for white wine packaging; secondly, it should be easy to loosen and retighten by hand without tools; and finally, it is important that these sealing and tightening / loosening torque values ​​be repeatedly obtained under high-speed industrial conditions for capping. Good geometric tolerances are required for the bottles to be capped, and the capping torque must be controlled.

[0006] U.S. Patent No. 5,784,933A discloses an apparatus for unscrewing a threaded cap from its associated threaded container. This apparatus includes: a first body having a first hole shaped to accommodate threaded caps of various sizes; a second body having a second hole shaped to accommodate containers of various sizes; and means for coupling the first body to the second body, wherein the coupling means includes a first coupling element on the first body and a second coupling element on the second body, and wherein the first coupling element is configured to engage with the second coupling element by a press-fit engagement.

[0007] U.S. Patent No. 20070068117A1 discloses an apparatus for screwing a sealing cap onto a container. The apparatus includes several sealing heads that rotate on a sealing track, each sealing head having clamps that can be moved in a controlled manner, each clamp having a control unit that rotates with the clamp, each control unit being movable relative to the sealing track between an open position for opening the clamps and a closed position for closing the clamps, and the control unit being operable to change direction by means of a stationary stop between the open and closed positions.

[0008] Many traditional bottle openers are ineffective at opening a wide variety of containers of different sizes and leave the lid on after opening. Many traditional bottle openers, such as some existing devices, are strictly designed to open specific containers (e.g., containers sealed with standard caps). Others can be configured to be compatible with a small number of different container or cap sizes.

[0009] U.S. Patent No. 4,702,129, granted to Allen on October 27, 1987, discloses a conventional device that houses a threaded cap within a cavity, allowing the user to increase the amount of torque by squeezing the device around the cap. However, removing the cap from the cavity is difficult and cumbersome if it is coated with paint, glue, or other materials. Furthermore, the cavity does not allow the user to apply an effective amount of pressure around the cap while avoiding unnecessary twisting of the device body.

[0010] Some traditional openers have a first element for gripping the cap and a second element for gripping the bottle or container. This device is designed to allow the user to apply an increased amount of torque to both the cap and the container simultaneously during use. Summary of the Invention

[0011] The main objective of this invention is to provide a self-clamping tightening and loosening device, wherein the top of a cylindrical object, lacking mechanical locking features, is the portion to be tightened or loosened. When the resisting torque applied from the top of the cylindrical object increases, the tightening and loosening device provides an increased clamping force, requiring both this increased clamping force and rotational movement of the top of the cylindrical object to loosen or tighten it. The mechanism operates in the tightening or loosening direction.

[0012] Another object of the present invention is to provide a self-clamping tightening and loosening device, comprising:

[0013] (i) a tightening / loosening module (200) having a back plate (20) and a plurality of fingers (110) uniformly mounted on and along the edge of one surface of the back plate (20); and a plurality of guide rods (30) for mounting the back plate (20) to a base plate (10) attached to an actuator (11), wherein a central chamber (120) is formed at the center of the back plate (20) by the plurality of guide rods (30) and the fingers (110);

[0014] (ii) A gripper device (400) having a hollow cavity to hold a cylindrical object (300) having a round top (301) and a bottom (302), wherein the top (301) is tightened or loosened by the tightening / loosening module (200) on the substrate (10), the tightening / loosening module (200) being slidably mounted by a modular assembly fitting such that the central chamber (120) engages with the top (301) of the cylindrical object (300) at the hollow cavity formed by the gripper device (400);

[0015] Furthermore, during the tightening and / or loosening process, the top (301) of the cylindrical object (300) at the central chamber (120) tangentially presses against the outer surface of the finger (110), and each finger (110) rotates in the opposite direction to the top (301) at the central chamber (120), thereby loosening or tightening the top (301).

[0016] Another object of the present invention is to provide a self-clamping tightening and loosening device, wherein rotation of a plurality of finger-shaped elements (110) on the tightening / loosening module (200) causes the top (301) of a cylindrical object (300) to be loosened or tightened.

[0017] Another object of the present invention is to provide a self-clamping tightening and loosening device, wherein the top (301) presses against the finger (110) attached to the back plate (20), and the top (301) is held by frictional force formed between the plurality of fingers (110) and the outer surface of the top (301).

[0018] Another object of the present invention is to provide a self-clamping tightening and loosening device, wherein a spring (50) is mounted on a guide sleeve (40) disposed at one end of the guide rod (30), the spring (50) compressing the back plate (20) toward the substrate (10) such that the back plate (20) and the top (301) move linearly along the axis of rotation of the top (301) of the cylindrical object (300).

[0019] Another object of the present invention is to provide a self-clamping tightening and loosening device, wherein a plurality of said guide rods (30) are placed between said base plate (10) and said back plate (20), and torque generated by a motor is transmitted through said guide rods (30) to tighten and loosen said top (301) of said cylindrical object (300).

[0020] Another object of the present invention is to provide a self-clamping tightening and loosening device, wherein if the top of the article needs to be both tightened and loosened, two sets of clamping fingers can be used for opening and removing the cap. One set provides clockwise self-clamping, and the other set provides counterclockwise self-clamping. When the top of the article is rotated, the top moves linearly in the direction of the rotation axis of the cylindrical fingers or clamping fingers.

[0021] Another object of the present invention is to provide a self-clamping tightening and loosening device, wherein the tightening or loosening movement of the top of the cylindrical object is a linear movement along a rotation axis, maintaining the clamping of the top throughout the tightening or loosening process.

[0022] According to the invention, the top of the cylindrical object is pressed between a plurality of cylindrical fingers or clamping fingers connected to a back plate, wherein the top is held in place by friction generated by the cylindrical fingers on the top. A guide rod is placed between the base plate and the back plate to guide the back plate linearly along the axis of rotation. A plurality of guide rods and springs are placed behind the back plate such that the top is pushed between the clamping fingers, and the back plate and the top move linearly along the axis of rotation until the tightening or loosening process is complete.

[0023] To guide the backplate linearly along the axis of rotation, the guide rod is placed between the substrate and the backplate.

[0024] The torque generated by the motor is transmitted through multiple guide rods to tighten and loosen the parts via a self-clamping tightening and loosening device.

[0025] The clamping fingers of the self-clamping tightening and loosening device of the present invention have a plurality of eccentric rubber sleeves, each eccentric rubber sleeve rotates under the resistance torque from the top, and each eccentric rubber sleeve is held in its initial position by a pin, the eccentric rubber sleeve being deformable upon torsion.

[0026] According to the present invention, during the tightening or loosening process, the resisting torque from the top is transmitted to the clamping finger through friction, wherein the eccentric rubber sleeve rotates about the axis of the cylindrical clamping finger, thereby further clamping the cylindrical clamping finger on the top.

[0027] The added grip at the top ensures that the tangential force from the motor torque is applied to the top without slipping. As the top rotates, the backplate continuously presses against it, and the distance the backplate moves is the distance required to fully tighten or loosen it from the top.

[0028] According to the self-clamping tightening and loosening device of the present invention, the resistance torque is removed after the tightening process is completed or reduced at the beginning of the loosening process, and the elastic modulus of the eccentric rubber sleeve returns to its initial position, thereby reducing the gripping force on the top when the eccentric rubber sleeve returns to its initial position.

[0029] Another primary objective of this invention is to provide a self-clamping tightening and loosening device, wherein a device on a substrate is mounted on a motor or rotary actuator to tighten and loosen a cylindrical top, and during tightening and loosening, the device descends toward the top. During this descent, the top is pressed between clamping fingers. If the rotational direction moves the top toward the clamping fingers, the clamping finger assembly descends to the height where the spring reaches its initial compression. If the rotational direction moves the top away from the clamping fingers, the fingers are descended to the initial compression height of the spring plus the required linear travel of the top.

[0030] Another object of the present invention is to provide a self-clamping tightening and loosening device, wherein the cylindrical top does not have a mechanical locking feature, but relies on friction to allow torque to be effectively transmitted to the top, thereby enabling tightening and loosening processes without relative slippage.

[0031] Another object of the present invention is to provide a self-clamping tightening and loosening device, wherein a relatively small initial clamping force makes the top easy to be operated to be inserted between the clamping fingers and removed from the clamping assembly.

[0032] Another object of the present invention is to provide a self-clamping tightening and loosening device in which torque from a motor is transmitted to the top, and the torque from the top causes the eccentric rubber sleeve to rotate around each clamping finger, thereby tightening the clamping force on the top.

[0033] Another object of the present invention is to provide a self-clamping tightening and loosening device, wherein the increased clamping force prevents slippage between the eccentric rubber sleeve and the top, so that the top can be tightened or loosened, and the eccentric rubber sleeve returns to its initial position when the resisting torque from the top is removed or reduced, so that the top can be easily removed.

[0034] Another object of the present invention is to provide a self-clamping tightening and loosening device, wherein the device is connected to a rotary motor or mechanism at a base plate to allow the entire device to rotate about its axis, and to maintain the position of the clamping fingers during tightening or loosening of the top, and to push the top by a back plate guided by a guide rod, and to allow the back plate to slide back and forth during tightening and loosening respectively.

[0035] The above-mentioned contents and other effects of the present invention are achieved by a self-clamping tightening and loosening device. Attached Figure Description

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] Figure 1 This is a perspective view of the self-clamping tightening and loosening device provided by the present invention, which is attached to the shaft of a rotary motor.

[0038] Figure 2 This is an exploded perspective view of the self-clamping tightening and loosening device provided by the present invention.

[0039] Figure 3 This is a side view of the self-clamping tightening and loosening device provided by the present invention, wherein the tightening / loosening module (200) is mounted on the base plate and disposed on the rotary motor.

[0040] Figure 4 This is a perspective view of the self-clamping tightening and loosening device provided by the present invention, attached to a linear actuator, used to tighten or loosen the cylindrical top of a cylindrical object.

[0041] Figure 5 It is a three-dimensional schematic diagram of a cylindrical object having a cylindrical top and a tube bottom, which is held by a pair of grippers provided by the present invention.

[0042] Figure 6 This is a three-dimensional schematic diagram showing that, after the loosening process is performed according to the present invention, the top of the cylindrical object is held in the central chamber of the back plate, and the bottom of the cylindrical object is held in the gripper.

[0043] Figure 7A A top view of the tightening / loosening module provided by the present invention is shown, along with the position of each finger and guide rod, the self-clamping function of which is in a clockwise direction.

[0044] Figure 7B This is a cross-sectional view of the finger-shaped component provided by the present invention, wherein the eccentric rubber sleeve is held by a pin.

[0045] Figure 8A This is a top view of the finger assembly mounted on the back plate provided by the present invention.

[0046] Figure 8B A cross-sectional view of the guide rod and eccentric rubber sleeve provided by the present invention is shown, along... Figure 8A The BB line is installed on the back panel.

[0047] Figure 9A and Figure 9B The cross-sectional view shows the movement of the tightening / loosening module provided by the present invention during the tightening and loosening of the cylindrical top, wherein the eccentric rubber sleeve engages the cylindrical top and forces the tightening / loosening module to move downward, thereby compressing the spring around the guide rod. Figure 9B This is a cross-sectional view of the spring under compression.

[0048] Figure 10 This is a schematic diagram of the eccentric rubber sleeve engaging the cylindrical top when the finger-shaped member is subjected to a resisting torque, wherein the direction of the resisting torque at the top is opposite to the direction that causes the eccentric rubber sleeve to twist.

[0049] Figure 11 This is a perspective view of the finger-shaped component of the tightening / loosening module provided by the present invention, wherein the eccentric rubber sleeve twists the cylindrical portion of the cylindrical object, and when the eccentric rubber sleeve rotates, additional material of the cylindrical object is pulled from the eccentric rubber sleeve to the top. Detailed Implementation

[0050] like Figure 1 As shown, the self-clamping device (500) provided in a preferred embodiment of the present invention is designed for tightening and loosening the sealed cylindrical top of a cylindrical object. The object has a top (301) and a bottom (302), as... Figure 5 and Figure 6 As shown. Figure 1 The present invention provides a perspective view of a self-clamping tightening and loosening device (500) mounted on the shaft or similar of a rotary motor (11).

[0051] According to a preferred embodiment of the invention, the tightening and loosening device (500) includes a clamping assembly (100) comprising a plurality of finger-shaped members (110) and a plurality of guide rods (30), the finger-shaped members (110) and the guide rods (30) being mounted on a surface of a back plate (20) having a rounded edge, the back plate being disposed on a substrate (10). The clamping assembly (100), together with the back plate (20) and the substrate (10), forms a shape as shown in the figure. Figure 5 The tightening / loosening module (200) shown. That is, Figure 5 and Figure 6 The tightening / loosening module 200 shown is mounted on a shaft such as a rotary motor 11, and the rotary motor 11 rotates the tightening / loosening module 200 during the tightening and loosening of the top 301 of the cylindrical object 300.

[0052] A central chamber (120) is formed at the center of one surface of the back plate (20). This central chamber (120) is essentially a space surrounded by a plurality of guide rods (30) and finger-shaped elements (110). The guide rods (30) and finger-shaped elements (110) are equidistantly spaced along the edge of the back plate (20), such as... Figure 1 As shown. 1.

[0053] like Figure 1As shown, the clamping assembly (100) holds a cylindrical top (301) located in the central chamber (120) on the back plate (20) and is attached to the shaft of the rotary motor. In this figure, the cylindrical top (301) is located at the center of the back plate (20), and the figure shows how the top (301) is held by the clamping assembly (100).

[0054] Figure 2 This is an exploded perspective view of the self-clamping tightening and loosening device (500) provided by the present invention. The tightening / loosening module (200) includes a plurality of guide rods (30) and a plurality of eccentric rubber sleeves (60) or clamping assemblies (100) on a back plate (20), wherein the guide rods (30) are mounted on the back plate (20), and a plurality of fastening screws (90), a plurality of sleeve pins (70), a plurality of bushings (80), and a positioning pin (101) are fixed to the back plate (20) along its edge near the guide rods (30) on the back plate (20). A plurality of guide sleeves (40) are used to fasten to the guide rods (30) at the back plate (20). A plurality of springs (50) are used to support the guide sleeves (40), wherein the guide sleeves (40) are located on springs (50) on a base plate (10). That is, the back plate (10) can compress the substrate (10) by the spring (50), and the guide sleeve (40) is located on the spring (50).

[0055] Figure 3 This is a cross-sectional view of the self-clamping tightening and loosening device (500) provided by the present invention, wherein the tightening / loosening module (200) is mounted on a rotary motor (11). As shown, an eccentric rubber sleeve (60) and a guide rod (30) are located on the surface of the back plate (20) along the edge of the back plate (20). Each guide sleeve (not shown) is located on a spring (50), and the spring (50) is located on the surface of the base plate (10). That is, since the spring (50) is located between the back plate (20) and the base plate (10), the tightening / loosening module (200) can be compressed.

[0056] According to a preferred embodiment of the invention, as shown, the clamping assembly (100) includes a back plate (20) guided by a plurality of guide sleeves (40) to allow the guide rod (30) to slide through, and a plurality of springs (50) on the guide sleeves (40) for engaging the back plate (10). When the top (301) is pressed between the fingers (110), the springs (50) are compressed, thereby overcoming the friction between the eccentric rubber sleeve (60) and the top (301), so that the top (301) can be inserted into the central chamber (120).

[0057] Multiple finger-shaped components (110) are mounted on the back plate (20), and each finger-shaped component is secured by a fastening screw (90). On each finger-shaped component (110), an eccentric rubber sleeve (60) is inserted into a pin (70). When assembled onto the back plate (20), the pin (70) and the eccentric rubber sleeve (60) are secured in designated positions by multiple locating pins (101). One or more bushings (80) are inserted into the eccentric rubber sleeve (60), causing the eccentric rubber sleeve (60) to rotate around the pin (70).

[0058] A pin (70) is used to hold the eccentric rubber sleeve (60) at the desired pitch circle diameter according to the diameter of the top (301) of the cylindrical object (300). The pin (70) is placed in a hole (61) to maintain the angle and allow the eccentric rubber sleeve (60) to rotate to the side. This also allows the eccentric rubber sleeve (60) to return to its initial position when the resisting torque is removed.

[0059] Figure 4 This is a perspective view of the self-clamping tightening and loosening device (500) provided by the present invention, attached to a linear actuator (11) for tightening or loosening a round top (301). As shown, the tightening and loosening module (200) is connected to a retaining bracket (55), and the top (301) is gripped by multiple jaws (400) for tightening and loosening the top (301) by the module (200) of the present invention.

[0060] like Figure 4 As shown, the entire tightening and loosening module (200) is moved into place by a linear motor (12) and rotated by a rotary motor (11), wherein the height of the module (200) remains constant and the back plate (20) is allowed to slide along the guide rod (30) as the top (301) rotates.

[0061] Figure 5 A perspective view of a cylindrical object (300) provided by the present invention is shown, the cylindrical object having a cylindrical top (301) and a tube or bottom (300) held by a gripper (400). Figure 6 The diagram is a three-dimensional representation showing the top (301) of the cylindrical object (300) held in the tightening / loosening module (200) and the bottom (302) of the cylindrical object (300) held in the gripper (400) after the loosening process is performed according to the present invention.

[0062] Reference Figure 4 , Figure 5 and Figure 6The diagram shows a gripper (400) with a central chamber for holding a cylindrical object (300) having a rounded top (301) and a bottom (302), wherein the top (301) is tightened or loosened by a tightening / loosening module (200), which is slidably mounted by a modular assembly fitting (55). Figure 4 (As shown). The module assembly can move up or down so that the central chamber (120) on the tightening / loosening module (200) can engage with the top (301) of the cylindrical object (300) held by the gripper (400).

[0063] Reference Figure 5 The image shows the top (301) of a cylindrical object (300) held by grippers (400), located directly below the tightening and loosening module (200) of the present invention. (See reference...) Figure 6 According to the present invention, the top (301) of the cylindrical object (300) is removed or loosened and held by the tightening / loosening module (200), while the bottom (302) is held by the gripper (400).

[0064] According to a preferred embodiment of the invention, during tightening and / or loosening, the top (301) of the cylindrical object (300) at the central chamber (120) contacts the outer surface of the finger (110), and each finger (110) rotates in the opposite direction to the top (301) at the central chamber (120), and the top (301) disengages from the bottom (302) of the cylindrical object (300), thereby the top (301) is unscrewed or tightened.

[0065] Figure 7A The top view of the clamping assembly (100) shows the layout of the fingers and guide rods forming the cavity. According to the invention, the directional offset of the asymmetrical fingers demonstrates the design function of the clamping assembly in a clockwise direction (as seen in the figure). Figure 7B This is a cross-sectional view of the finger-shaped member (110). According to the invention, the eccentric rubber sleeve (60) is held by a pin (70), which is fastened to the back plate (20) by a fastening screw (90) passing through the pin (70).

[0066] like Figure 7AAs shown, the central chamber (120) is used to receive the top (301) of the cylindrical object (300). Only three finger-shaped pieces (110) are shown. The top (301) is pressed between the three finger-shaped pieces (110) attached to the back plate (20), wherein the top (301) is held by friction. Three guide rods (30) are shown in the figure, with springs (not shown) placed behind the back plate (20) to allow the top (301) to be pushed between the clamping assemblies (100) and to allow the back plate (20) and the piece (301) to move linearly along the axis of rotation until the process is complete. To guide the back plate (20) linearly along the axis of rotation, the three guide rods (30) are placed between the base plate (10) and the back plate (20). Torque from the motor (11) is transmitted through the three guide rods (30) for tightening and loosening.

[0067] According to the present invention, Figure 10 The figure shows the eccentric rubber sleeve (60) engaging the cylindrical top (301) when the finger-shaped member (110) is subjected to a resisting torque. As shown, the torsional direction of the eccentric rubber sleeve (60) is opposite to the rotational direction of the top (301). The torsional direction of the eccentric rubber sleeve (60) is indicated by arrow 702, and the rotational direction of the top (301) is indicated by arrow 701.

[0068] Figure 11 The figure shows a perspective view of a finger-shaped component (110), wherein an eccentric rubber sleeve (60) twists the cylindrical top (301) of a cylindrical object (300); and as the eccentric rubber sleeve (60) rotates, other material of the cylindrical object (300) is pulled from the eccentric rubber sleeve (60) toward the top (301).

[0069] like Figure 10 As shown, each finger (110) has an eccentric rubber sleeve (60) that rotates under a resisting torque from the top (301). Each eccentric rubber sleeve (60) is held in its initial position by a sleeve pin (70), and the bottom end of the eccentric rubber sleeve (60) is secured by a locating pin (101) passing through a locating pin hole (61), as shown. Figure 7B As shown. Twisting can deform the eccentric rubber sleeve (60).

[0070] The resisting torque from the top (301) is transmitted to the finger (110) via friction, where the eccentric rubber sleeve (60) rotates about the axis of the finger (110), thus further tightening the grip of the finger (110) on the top (301) of the cylindrical object (300). The increased grip of the top (301) causes a tangential force from the motor torque to be applied to the top (301) without slippage. As the top (301) rotates, the back plate (20) continues to press against the top (301). The travel distance guided by the back plate (20) is the distance required for the top (301) to be fully tightened or loosened.

[0071] When the resistance torque is removed at the end of the tightening process or reduced at the beginning of the loosening process, the elastic modulus of the eccentric rubber sleeve (60) returns to its initial position, thereby returning the position of the eccentric rubber sleeve (60) and reducing the clamping on the top (301).

[0072] According to the present invention, Figure 8A A top view of the finger-shaped piece (110) assembled to the back plate (20); Figure 8B For mounting to the back panel (20), the finger-shaped piece (110) along... Figure 8A The cross-section of the BB line. (By) Figure 8B It can be clearly seen that the guide rod (30) is mounted together with the guide sleeve (40) and then positioned on the spring (50). The guide sleeve (40) is located below the back plate (20); the spring (50) is located below the back plate (20) and above the base plate (10).

[0073] Figure 9A and Figure 9B The cross-sectional view shows the movement of the tightening / loosening module (200) of the present invention during the tightening and loosening of the cylindrical top (301), wherein the eccentric rubber sleeve (60) engages the cylindrical top (301) and forces the tightening / loosening module (200) to move downward, thereby compressing the spring (50) around the guide rod (30). Figure 9B This is a cross-sectional view of the spring (50) under compression.

[0074] In a preferred embodiment of the present invention, such as Figure 5 and Figure 6 As shown, grippers (400) for clamping the cylindrical top (301) are located directly below the tightening / loosening module (200), wherein the outer surface of the top (301) contacts the outer surface of the finger (110), and each finger (110) rotates in the opposite direction to the top (301) located in the central chamber (120). The grippers (400) are provided with a central cavity to hold the cylindrical object (300) to be tightened or loosened on the back plate (20) through the central chamber (120). Rotation of the cylindrical object (300) allows the top (301) of the item (300) to be tightened or loosened.

[0075] According to the present invention, a self-clamping tightening and loosening device is provided for a cylindrical top (301), such as a cap or similar structure. During tightening and / or loosening, the top (301) of the cylindrical object (300) can be held while being unscrewed.

[0076] This invention is designed to tighten and loosen an object with a circular cross-section without mechanical locking features. As the resistance torque increases, the invention generates an increased clamping force, requiring this increased force to loosen or tighten the component. The mechanism operates in the tightening or loosening direction. If both tightening and loosening functions are required, two sets of finger-shaped components can be used to perform the capping and decapping tasks. The component can move linearly along the axis of rotation as it rotates. This device is designed to move linearly along the axis of rotation, maintaining a grip on the component throughout the tightening and loosening process.

[0077] In summary, a preferred embodiment of the present invention provides a self-clamping tightening and loosening device for removing a lid or cylindrical top from a cylindrical container. This device is particularly suitable for containers and is configured to be compatible with containers and lids of various sizes. The device is configured to easily screw on and off lids from cylindrical containers and to retain the lid after it has been screwed on.

[0078] The present invention has been described above with reference to preferred embodiments. However, those skilled in the art can make adjustments and modifications to the preferred embodiments without departing from the scope of the invention. These and other adjustments and modifications are intended to fall within the scope of the claims of the present invention.

Claims

1. A self-clinching tightening and loosening device, characterized in that, include (i) a tightening / loosening module (200) having a back plate (20) with a circular edge and a plurality of fingers (110) uniformly mounted on and along the circular edge of one surface of the back plate (20); and a plurality of guide rods (30) for mounting the back plate (20) onto a base plate (10) attached to a rotary motor (11), wherein a central chamber (120) is formed at the center of the surface of the back plate (20) by the plurality of guide rods (30) and the fingers (110), each of the fingers (110) having an eccentric rubber sleeve (60) one end of which is fixed and is rotatable by torsional deformation around a positioning pin (70); (ii) A gripper device (400) having a hollow cavity to hold a cylindrical object (300) having a round top (301) and a bottom (302), wherein the top (301) is tightened or loosened by the tightening / loosening module (200) on the substrate (10), the tightening / loosening module (200) being slidably mounted by a modular assembly fitting such that the central chamber (120) engages with the top (301) of the cylindrical object (300) at the hollow cavity formed by the gripper device (400); Furthermore, during the tightening and / or loosening process, the top (301) of the cylindrical object (300) at the central chamber (120) contacts the outer surface of the finger (110), and each finger (110) rotates in the opposite direction to the top (301) at the central chamber (120). The top (301) is rotated, and the top (301) is rotated during engagement, and the rotation causes the eccentric rubber sleeve (60) to twist and deform, clamping the top (301) to achieve loosening or tightening.

2. The self-clinching tightening and loosening device according to claim 1, characterized in that, The top (301) of the cylindrical object (300) is loosened or tightened by rotating a plurality of finger-shaped pieces (110) on the tightening / loosening module (200).

3. The self-clinching tightening and loosening device according to claim 1, characterized in that, The top (301) presses against the finger (110) attached to the back plate (20), and the top (301) is held in place by friction between the plurality of fingers (110) and the outer surface of the top (301).

4. The self-clinching tightening and loosening device according to claim 1, characterized in that, Multiple springs (50) are mounted on a guide sleeve (40) disposed at one end of a guide rod (30). The springs (50) allow the back plate (20) to compress toward the base plate (10), causing the back plate (20) and the top (301) to move linearly along the rotation axis of the finger (110).

5. The self-clinching tightening and un-tightening device according to claim 1, characterized in that, Multiple guide rods (30) are placed between the substrate (10) and the back plate (20), and the torque generated by the rotary motor (11) is transmitted through the guide rods (30) to tighten and loosen the top (301) of the cylindrical object (300).

6. The self-clamping tightening and loosening device according to claim 1, characterized in that, Each of the finger-shaped members (110) has an eccentric rubber sleeve (60) that rotates when a resisting torque from the top (301) is applied to the eccentric rubber sleeve (60).

7. The self-clinching tightening and loosening device according to claim 6, characterized in that, The eccentric rubber sleeve (60) is deformable.

8. The self-clinching tightening and un-tightening device of claim 1, wherein, The resisting torque from the top (301) of the cylindrical object (300) is transmitted to the finger (110) through friction.

9. The self-clinching tightening and un-tightening device of claim 1, wherein, Rotate the top (301), and the back plate (20) continues to press on the top (301), the back plate (20) moves a distance required to fully tighten or loosen the top (301).

10. The self-clinching tightening and un-tightening device of claim 1, wherein, The substrate (10) is mounted on the rotary motor (11) to tighten or loosen the top (301) of the cylindrical object (300).

11. The self-clamping tightening and loosening device according to claim 1, characterized in that, The back plate (20) guided by the guide rod (30) is pushed to the top (301) and can slide back and forth during the loosening and tightening of the top (301).

12. The self-clamping tightening and loosening device according to claim 1, characterized in that, The finger-shaped member (110) includes an eccentric rubber sleeve (60) and a pin (70), the eccentric rubber sleeve (60) being inserted into the pin (70) on the back plate (20).

13. The self-clinching tightening and un-tightening device according to claim 12, characterized in that, The pin (70) is used to fix one end of the eccentric rubber sleeve (60) to restrict the rotation of the eccentric rubber sleeve (60).

14. The self-clinching tightening and un-tightening device of claim 1, wherein, The tightening / loosening module (200) is rotated by the rotary motor (11), and the height of the tightening / loosening module (200) to the back plate (20) remains unchanged. When the top (301) rotates, the back plate (20) can slide along the guide rod (30).

15. The self-clinching tightening and un-tightening device of claim 1, wherein, The finger (110) holds the top (301) and is attached to the shaft of the rotary motor (11).

16. The self-clamping tightening and loosening device according to claim 1, characterized in that, The pin (70) is fastened to the back plate (20) by a fastening screw (90) passing through the pin (70).

17. The self-clinching tightening and un-tightening device of claim 4, wherein, The eccentric rubber sleeve (60) engages with the top (301), forcing the tightening / loosening module (200) to move downward and compress the spring (50) around the guide rod (30).

18. The self-clinching tightening and un-tightening device of claim 1, wherein, During tightening and / or loosening, the eccentric rubber sleeve (60) rotates at the top (301), but remains stationary at its bottom.

19. The self-clinching tightening and un-tightening device of claim 1, wherein, The rotation direction of the eccentric rubber sleeve (60) is opposite to the rotation direction of the top (301), and the rotation direction is the direction of the resisting torque of the top (301).

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