Automatic safety chuck

Abstract

The invention is an automatic safety chuck (A) used to guide and rotate the shafts that grip the bobbins in the winding and unwinding of materials such as paper, fabric, plastic, film layers and foil in the packaging and textile industry, wherein; it comprises the body (110) in which all the rotating elements that transmit the drive are positioned in order to prevent work accidents, the shaft support bearing (120), which can be mounted on the front surface of the body (110) at the desired angle and position in order to keep the shaft suspended and in the central position when the shaft is loaded into the machine, the geared drive element (150), which is positioned within the body (110) to transmit the drive from the engine to the shaft, and does not require centering positioning with a bearing, the air nozzle (160) positioned inside the geared drive element (150), which does not require positioning, to automatically transmit the air into the shaft through the automatic safety locking chuck (A), the rear centering body (140) connected to the body (110), the driven shaft (180) or non-driven shaft (181) centered with a bearing, positioned within the rear centering body (140) to transmit the drive coming from the engine to the shaft.

Description

[0001] AUTOMATIC SAFETY CHUCK

[0002] Technical Field

[0003] The invention relates to automatic safety chuck which is used to support and rotate the shafts that grip the bobbins in the winding and unwinding of materials such as paper, fabric, plastic, film layers and foil in the packaging and textile industry.

[0004] State of the Art

[0005] The packaging industry is a vital sector that ensures the protection, transportation, storage and sale of products. It performs many important functions such as protecting the products from external factors and delivering them to consumers in a fresh and healthy way, protecting the brand value and promoting the products. At the same time, it develops sustainable packaging solutions with its environmental responsibility and tries to minimize packaging waste. Therefore, the packaging industry has become an indispensable part of all industries.

[0006] In traditional processes where machines used in the packaging and textile industry process bobbins used in winding and unwinding materials such as paper, fabric, plastic, film layers and foil, these bobbins are mounted on the machines in a way that does not affect the winding or unwinding. The bobbins that carry the material are normally tubular components. A shaft is usually placed inside the bobbin to provide rotational drive. The shaft expands and grips the bobbin. Each end of the shaft then engages a chuck that is connected to a shaft that is rotationally connected to the machine. Chucks are used for supporting and rotating the shafts to grip the bobbins or materials used in the packaging and textile industries. The safety chuck prevents the roll from separating from the machine when it automatically grips and closes the shaft ends and the machine starts to rotate the shafts. The safety supporting is usually closed manually.

[0007] Various studies have been carried out and new structures have been developed in order to eliminate the disadvantages experienced in the existing systems in use. One of these studies is the invention that is the subject of patent application numbered US10457519B1. The invention overcomes the limitations of prior art safety chucks by providing a safety chuck that includes a closing spring(s) and magnets. An operator manually opens the safety chucks by applying force to the springs. In the fully open position, the magnets come into contact and hold the safety chuck in the fully open position. Then, a shaft is placed on the safety chuck pair. When the machine is started, the magnets are separated from each other and released as the safety chuck with paired shafts rotates. The springs then force the chuck to close completely. Although the mentioned invention offers a new approach in the art, it was not sufficient to eliminate the problems experienced.

[0008] In the present systems, in order to put the shaft into the locking chucks, the locking chucks must be brought to a certain position. For this, position sensors are included in the system as an additional cost. In the present arts, the part that supports and locks the shaft rotates with the shaft, posing a danger to work safety. Since the rotation of the shaft locking part along with the drive transmission shaft affects the total weight of the rotating system as well as work safety, it also brings about a powerful engine selection and more electricity consumption. In the present systems, if the shaft is locked and operated before reaching the safe (closed) position, the system is mechanically moved to the closed position with a pin or cam system. This method does not last long due to metal fatigue of the metals and causes frequent maintenance or work accidents. As a result, the existence of a need for a new safe chuck that eliminates the disadvantages of the present art and the inadequacy of existing solutions have made it necessary to make a development in the relevant technical field.

[0009] Brief Description of the Invention

[0010] The present invention relates to the automatic safety chuck, which meets the above-mentioned requirements, eliminates all disadvantages and brings some additional advantages, and is used to support and rotate the shafts that grip the bobbins in the winding and unwinding of materials such as paper, fabric, plastic, film layers and foil in the packaging and textile industry.

[0011] Based on the state of the art, the object of the invention is to ensure that, by means of the closed body structure of the developed safety chuck, the parts that transfer the drive are placed in a completely closed structure and thus the risk of occupational accidents is eliminated.

[0012] The object of the invention is to ensure that the shaft can be positioned without the need for repositioning when the locking chuck is in any position, by means of geared drive element and shaft support bearing, which do not require positioning with a roller bearing.

[0013] Another object of the invention is to enable the selection of engine at lower powers and thus provide energy savings, by means of the fact that the rotating parts are only geared drive elements and driven shafts that do not require positioning and are lighter than existing systems. Another object of the invention is to ensure that the system is automatically brought to the closed position by means of the mold spring used.

[0014] Another object of the invention is to provide a system that is much longer lasting and does not require frequent maintenance, compared to the security measures in existing systems, by means of the automatic switching of the system to the off position.

[0015] Another object of the invention is to ensure that the supported shaft does not rotate when the system is moved, even if the system does not automatically come to a closed position by means of the movable driven shaft.

[0016] Another object of the invention is to ensure that air can be transferred directly into the shafts that will grip the bobbin or material by means of the air nozzle inside the body of the developed safety chuck.

[0017] Another object of the invention is to ensure that the shaft can be kept in the required position so that the loading and unloading systems on the machines in the usage areas can receive the shaft on the chuck, by being able to mount the shaft support bearing at the desired angle and position.

[0018] The structural and characteristic features and all the advantages of the invention will be understood more clearly by means of the drawings given below and the detailed description written with references to these drawings, therefore the evaluation needs to be made by taking these drawings and detailed descriptions into consideration.

[0019] Brief Description of the Drawings

[0020] In order to best understand the structure of the present invention and its advantages with additional elements, it needs to be evaluated together with the drawings described below.

[0021] Figure-1 is a schematic general view of the disassembled state of the automatic safety chuck, Figure-2 is a schematic general view of the automatic safety chuck in the open position, Figure-3 is a schematic general view of the automatic safety chuck in the closed position, Figure-4 is a schematic general view of the section of the automatic safety chuck,

[0022] Figure-5a is a schematic general view of the driven automatic safety chuck from the back,

[0023] Figure-5b is a schematic general view of the driven automatic safety chuck from the front,

[0024] Figure-6a is a schematic general view of the non-driven automatic safety chuck from the back,

[0025] Figure-6b is a schematic general view of the non-driven automatic safety chuck from the front, Figure-7 is a schematic general view of the geared drive element of the automatic safety chuck, which does not require positioning, while transferring the drive to the supported shaft head.

[0026] Reference Numbers

[0027] A. Automatic safety chuck

[0028] 110. Body

[0029] 120. Shaft support bearing

[0030] 130. Piston with protection cover

[0031] 140. Rear centering body

[0032] 150. Geared drive element that does not require positioning

[0033] 160. Air nozzle

[0034] 170. Mold spring

[0035] 180. Driven shaft

[0036] 181 . Non-driven shaft

[0037] 190. Valve

[0038] 200. Shaft head

[0039] Detailed Description of the Invention

[0040] In this detailed description, the automatic safety chuck (A), which is the subject of the invention, used in the packaging and textile industry for the supporting and rotation of the shafts that grip the bobbins in the winding and unwinding of materials such as paper, fabric, plastic, film layers and foil is described only as an example for a better understanding of the subject and in a way that does not form any limiting effect.

[0041] The automatic safety chuck (A), which is the subject of the invention, shown in Figure-1 basically comprises a body (110) in which all the rotating elements that transmit the drive are positioned in order to prevent work accidents, a shaft support bearing (120) and rear centering body (140), which can be mounted on the body (110) at the desired angle and position, a piston (130) with protection cover located inside the body (A) and allowing the system to be in the opened or closed position, a driven shaft (180), which is located inside the body (110) and transmits the drive received from the engine to the shaft, and a geared drive element (150), which does not require positioning, a mold spring (170), which automatically brings the automatic safety locking chuck (A) to the closed position when air is drawn from the system, an air nozzle (160) that provides automatic air transmission into the shaft through the automatic safety chuck (A). The shaft support bearing (120) and the rear centering body (140) are mounted on the body (110) shown in Figure-2. There is a centered piston with protection cover (130) inside said body (110). The geared drive element (150), which does not require a bearing and centered positioning, is positioned inside the said piston with protection cover (130). There is an air nozzle (160) inside the geared drive element (150), which does not require the mentioned positioning. A driven shaft (180) or non-driven shaft (181 ) centered with a bearing is connected to the inside of the rear centering body (140). A mold spring (170) is embedded in said driven shaft (180) or non-driven shaft (181). A valve (190) is fixed to said body (110) to ensure air entry into the system. The automatic safety locking chuck (A) can be brought to the open position by blowing air through the valve (190) mounted on said body (110). When the mentioned automatic safety chuck (A) is in the open position, shaft loading or shaft removal from the machine can be performed.

[0042] The shaft support bearing (120) mounted on the front surface of the body (110), which forms the main structure of the automatic safety chuck (A) shown in Figure-3, keeps the shaft suspended and in the central position when the shaft is loaded into the machine.

[0043] There is a geared drive element (150) that is centered and fixed with bearings and does not require positioning, inside the piston with a protection cover (130), which is centrally mounted inside the body (110) shown in Figure-4. The air nozzle (160), which is used to introduce air into the shaft from the center when the system is turned off, is positioned inside the geared drive element (150), which does not require positioning. By means of the air nozzle (160) mounted in said driven shaft (180) or non-driven shaft (181), the air coming from the rotary joint connected to the back of the driven shaft (180) or non-driven shaft (181 ) is transmitted to the air nozzle (160) and thus air is supplied into the shaft.

[0044] Inside the rear centering body (140) mounted on said body (110), there is the driven shaft (180) shown in Figure-5a or the non-driven shaft (181) shown in Figure-6a, which is centered with the bearing and transmits the drive coming from the engine to the shaft. Inside the driven shaft (180) shown in Figure-5b or the non-driven shaft (181 ) shown in Figure-6b, there is a mold spring (170) that automatically brings the shaft to the locking (closed) position as soon as air is evacuated from the system.

[0045] The automatic safety chuck (A) shown in Figure-7 is supported on the geared drive element (150), which does not require positioning, through the shaft support bearing (120), and the drive produced by the engine located in the body (110) is transmitted to the shaft through the geared shaft head (200), which does not require positioning.

Claims

CLAIMS1. An automatic safety chuck (A) used in packaging and textile industry to guide and rotate shafts that grip bobbins in winding and unwinding materials such as paper, fabric, plastic, film layers and foil, characterized by comprising:- a body (110) in which all the rotating elements that transmit the drive are positioned to prevent work accidents,- a shaft support bearing (120), which can be mounted on the front surface of the body (110) at the desired angle and position in order to keep the shaft suspended and in the central position when the shaft is loaded into the machine,- a geared drive element (150), which is positioned within the body (110) to transmit the drive from the engine to the shaft, and does not require centering positioning with a bearing,- an air nozzle (160) positioned inside the geared drive element (150), which does not require positioning, to automatically transmit the air into the shaft through the automatic safety chuck (A),- a rear centering body (140) connected to the body (110),- a driven shaft (180) or non-driven shaft (181) centered with the bearing, positioned within the rear centering body (140) to transmit the drive coming from the engine to the shaft.

2. The automatic safety chuck (A) according to claim 1 , characterized by comprising a piston with a protection cover (130) positioned inside the body (110) so that the system can be in the open or closed position.

3. The automatic safety chuck (A) according to claim 1 , characterized by comprising a mold spring (170) embedded in the driven shaft (180) or non-driven shaft (181) to automatically bring the automatic safety chuck (A) to the closed position when air is drawn from the system.

4. The automatic safety chuck (A) according to claim 1 , characterized by comprising a valve (190) positioned on the body (110) through which air is supplied to bring the automatic safety chuck (A) to the open position.

5. The automatic safety chuck (A) according to claim 1 , characterized by comprising a geared shaft head (200) that is mounted on a geared drive element (150) that does not require positioning, in order to transmit the drive produced by the engine inside the body (110) to the shaft.

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