1. Field of the Invention
The present invention relates to a weight sorter, and more particularly to a weight sorter having an enhanced lifetime.
2. Description of the Related Art
A conventional weight sorter comprises a weight measuring device mounted to measure the weight of an article, and a drive lever mounted on the weight measuring device to drive and pivot the weight measuring device. Thus, the drive lever is operable to pivot the weight measuring device when the weight measuring device measures the weight of the article so as to drop the article supported by the weight measuring device onto a predetermined conveyor belt, thereby finishing a weight selection work. However, the drive lever is suspended from the weight measuring device, so that a gap is defined between the drive lever and the weight measuring device, thereby incurring a jamming problem. In addition, the drive lever applies an excessive load onto the weight measuring device via the article, thereby greatly increasing the burden of measuring device, thereby decreasing the lifetime of measuring device during a long-term utilization.
In accordance with the present invention, there is provided a weight sorter, comprising a base; a weight measuring device mounted on a top of the base to measure a weight of an article; and a pivot device mounted on a bottom of the base and operable to pivot the base when the weight measuring device measures the weight of the article so as to drop the article onto a predetermined conveyor belt, thereby finishing a weight selection work.
The primary objective of the present invention is to provide a weight sorter, wherein the pivot device does not apply any pressure or force on the weight measuring device during the pivot action, so that the weight measuring device is not subjected to an excessive force and can be used during a long-term utilization, thereby enhancing the lifetime of the weight measuring device.
Another objective of the present invention is to provide a weight sorter, wherein the ranges of the volume and weight of the article are not limited by provision of the pivot device, thereby enhancing the versatility of the weight sorter.
A further objective of the present invention is to provide a weight sorter, wherein after the weight measuring device measures the weight of the article, the weight measuring device stops operating until the pivot device is restored to its original state after dropping the article onto the predetermined conveyor belt so as to prevent consumption of the weight measuring device, thereby enhancing the lifetime of the weight measuring device.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
Referring to the drawings and initially to
In the preferred embodiment of the present invention, the weight measuring device 1 is fixed on the top of the base 2 to pivot therewith. The base 2 has a pivot shaft 21 pivotally mounted on a main frame 10. The pivot device 3 includes two hydraulic cylinders 31 each mounted on the main frame 10 and each having a retractable distal end 310 pivotally connected to one of two opposite sides of the base 2 by a roller 311. The hydraulic cylinders 31 of the pivot device 3 are operable to pivot the base 2 when the weight measuring device 1 measures the weight of the article 12. Thus, after the weight measuring device 1 measures the weight of the article 12, one of the hydraulic cylinders 31 is expanded and the other one of the hydraulic cylinders 31 is retracted, so that the base 2 is pivoted about the pivot shaft 21.
As shown in
Thus, when the weight of the article 12 satisfies the predetermined standard of the weight measuring device 1, the pivot device 3 is operated normally, so that the article 12 is dropped onto the conveyor belt 4, and when the weight of the article 12 does not satisfy the predetermined standard of the weight measuring device 1, the pivot device 3 is operated reversely, so that the article 12 is dropped onto the other conveyor belt 41.
In the preferred embodiment of the present invention, after the weight measuring device 1 measures the weight of the article 12, the weight measuring device 1 stops operating until the pivot device 3 is restored to its original state after dropping the article 12 onto the predetermined conveyor belt 4 or 41.
As shown in
Referring to
Referring to
Accordingly, the pivot device 3 does not apply any pressure or force on the weight measuring device 1 during the pivot action, so that the weight measuring device 1 is not subjected to an excessive force and can be used during a long-term utilization, thereby enhancing the lifetime of the weight measuring device 1. In addition, the ranges of the volume and weight of the article 12 are not limited by provision of the pivot device 3, thereby enhancing the versatility of the weight sorter. Further, after the weight measuring device 1 measures the weight of the article 12, the weight measuring device 1 stops operating until the pivot device 3 is restored to its original state after dropping the article 12 onto the predetermined conveyor belt 4 or 41 so as to prevent consumption of the weight measuring device 1, thereby enhancing the lifetime of the weight measuring device 1.
Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.