Title of Invention | "A FAULTY PACKET REJECTION DEVICE" |
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Abstract | This invention relates to a faulty packet rejection device for packaging machine comprising a belt conveyor C for conveying the packets P from the packaging machine, characterized in that a bracket 1 adapted to be operated by pneumatic cylinder 3 secured with the frame of the machine, a lever 2 being secured with said bracket to act as a stopper in order to make the stock of pouches or to reject as faulty packet P, a spring 6 is provided between the upper arm 2A of said lever and said bracket to keep the lever always into the downward position, a photo sensor 8 being provided below the conveyor belt to sense the existence of the faulty packet and to convey signals to the pneumatic cylinder to lift the bracket as well as the lever to allow the passage of the faulty/jointed packet to go to the rejection chute of the machine. |
Full Text | This invention relates to a faulty packets rejection device. The device is used at the discharge end of a packaging machine for rejecting the faulty, packets. The device can also be used at the infeed end of down stream secondary packaging machine linked to the primary packaging machine specifically in case of a pouch packing machine for biscuits. The faulty packets rejection system is as such known in the art. This system comprises a photo electric sensor provided near the discharge belt for sensing the faulty packet i.e. jointed packets such that to convey the signals to fast acting pneumatic cylinder provided with the machine so as to push the faulty packet into the rejection chute of the packaging machine. There are some disadvantages associated with the faulty packet rejection system of the known art. One of the main disadvantage is that the action of the pneumatic pusher has to be very fast as the distance between the two packets is negligible and the packets are conveyed on the conveyor belt S 120 packets per minute, which is very difficult to get. Another disadvantage is that the packets are conveyed on the belt by friction and push action for rejection is at the right angle to the conveyor belt movement and thus the orientation of the packets on the belt is disturbed and therefore the packets got jamed in the side guides. Therefore the main object of this invention is to propose a device for use with a packaging machine for the rejection of the faulty packets, and which obviates the disadvantages associated with the prior art. Another object of this invention is to propose a device for use with a pouch packaging machine to discharge the faulty packets having the means which do not disturb the orientation of the packets on the conveyor be1t. According to this invention there is provided a faulty packet rejection system for use at the discharge end of a packaging machine comprising a belt conveyor for conveying the packets from the pouch packaging machine, characterised in that means consisting of a bracket adapted to be operated by pneumatic cylinder secured with the frame of the machine, a lever being secured with said bracket such that to stop the packet for making stack or to reject as faulty packet, a photo sensor being provided below the conveyor belt such that to sense the existence of the faulty packet and to convey signals to operate the said bracket. In accordance with this invention the faulty packet rejection system comprises a bracket adapted to be moved in the upward and downward direction by means of a pneumatic cylinder secured with the main frame of the pouch packaging machine. A lever is pivotly secured to the bracket such that to act as a stopper in order to make the stack of the pouches. A spring is provided between the upper arm of the lever and the bracket such that to keep the lever always in the downward position. A photosensor is provided near the conveyor belt of the machine so as to sense the existence of the faulty packet or jointed packet and to provide the signals to the pneumatic cylinder to lift the bracket as well as the lever so as to allow the passage of the faulty/jointed packet to go to the rejection chute of the machine. A faulty packet rejection system for use • packaging machine according to a preferred embodiment is herein described and illustrated in the accompanying drawings wherein: Fig. 1 shows the plane view of the faulty packet rejection system.of the known art and Fig. 2 shows the plane view of the faulty packet system of the present invention Referring to the drawings particularly fig. 1 the faulty packet rejection system has faulty packet rejector R adapted to be operated by means of a fast acting pneumatic cylinder A provided in the proximity of the belt conveyor C. A photosensor B being provided near the conveyor belt C such that to detect the existence of the faulty/jointed packet P on the conv»yor belt C and to convey the signals to operate fast acting cylinder A in order to push the faulty packet P in th« rejection chute RC from the conveyor belt C. Reference is now made to fig. 2, the faulty/jointed packet rejection system comprises a belt conveyor C for conveying the packet P received from the pouch making machine in the conventional manner. A photosensor 8 is provided near the conveyor belt C for detecting the presence of the faulty packet on the belt C. These features do not constitute the inventive features according to this invention. Specifically in accordance with this invention the faulty packet rejection system has a bracket 1 adapted to be moved up and down by means ofr pneumatic cylinder 3 provided with the frame of the machine. A lever 2 having a roller secured at the lower end thereof rotatably is secured pivotly with the bracket 1 at the bottom end thereof. A spring 6 is provided between the bracket 1 and the top arm 2A of the lever 2 to keep the lever 7 always in the downward position. An adjusting screw 5 is provided to keep the pressure of the lever 2 on the conveyor belt as per the requirement. The roller 7 is provided to keep the packet in the moving position even if the lever is supported on the packet. However, the packet is not a faulty packet. As soon as the packet passed through the lever 2, the lever 2 moves down to act as a packet stopper for making the stack of the packets P. During the operation of the machine lever 2 act as a stopper to facilitate the formation of the stack of the packets. In case of a faulty packet the photosensor sense it and send the signals to operate the pneumatic cylinder so as to lift the bracket/lever to allow the passage of the packet into the rejection chute of the machine. 1 CLAIM; 1. A faulty packet rejection system for use at the discharge end of a packaging machine comprising a balt conveyor for conveying the packets from the ,pouch packaging machine, characterised in that means consisting of a bracket adapted to be operated by pneumatic cylinder secured with the frame of the machine, a lever being secured with said bracket such that to stop the packet for making stack or to reject as faulty packet, a photo sensor being provided below the conveyor belt such that to sense the existence of the faulty packet and to convey signals to operate the said bracket. 2. A faulty packet rejection system as claimed in claim 1 wherein said lever has a roller secured at the lower end thereof rotatably, a spring is provided between the upper arm of said lever and said bracket to keep the lever always into the downward position. 3. A faulty packet rejection system as claimed in claim 1 wherein an adjusting screw is provided with said bracket to adjust the pressure of said lever onto the conveyor belt. 4. A faulty packet rejection system substantially herein described and illustrated. |
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1051-del-1999-correspondence-others.pdf
1051-del-1999-correspondence-po.pdf
1051-del-1999-description (complete).pdf
Patent Number | 223105 | ||||||||
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Indian Patent Application Number | 1051/DEL/1999 | ||||||||
PG Journal Number | 40/2008 | ||||||||
Publication Date | 03-Oct-2008 | ||||||||
Grant Date | 04-Sep-2008 | ||||||||
Date of Filing | 02-Aug-1999 | ||||||||
Name of Patentee | RAJESH KHOSLA | ||||||||
Applicant Address | KHOSLA PRECISIONS, 644, SECTOR 16-D, CHANDIGARH-160 015, INDIA. | ||||||||
Inventors:
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PCT International Classification Number | B65B 65/00 | ||||||||
PCT International Application Number | N/A | ||||||||
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PCT Conventions:
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