JP2521480Y2 - Weighing pan rotating device in weight sorter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rotating device for a weighing pan in a weight sorter.

[Conventional technology]

In the process of progress of the weight measuring and sorting device assembled to this together with the rotation of the endless conveyor, in accordance with a predetermined weight section, in order to measure and sort the weighing object into a set value group,
The weighing tray that contains the articles is placed on the side of the vertical link so that the weighing tray is laid down to release the contents, or the weighing tray is directly attached to the mounting rod of the conveyor of the sorting device. When mounted, the tray is toppled downward during measurement, and furthermore, a frame-type link is attached to the front link that is fixed to the above mounting rod, and a weighing dish is attached to this to allow tipping downward. There are various types of embodiments, such as the ones.

[Problems to be solved by the invention] In these existing weighing / sorting devices, the contents on the weighing pan may move or sway in the course of the conveyor depending on the shape or size of the article such as fruits and vegetables. There are some inadequacies and drawbacks in that accurate measurements cannot be obtained due to instability or vibration of the device itself, and that the weighing material discharge operation cannot perform satisfactory sorting processing.

Therefore, in the present invention, stable transfer and measurement are performed smoothly and accurately irrespective of the articles, and the backward discharge operation of the measured weight is performed more quickly and more reliably. 2-24332) is intended to be improved.

[Means for solving the problem]

The present invention aims to improve the functionality of the weighing pan rotating device by improving the Roberval mechanism, and the details thereof will be described below with reference to the drawings.

An endless chain conveyor 1 that circulates in the front-rear direction via a drive sprocket and a driven sprocket is mounted on both sides of the machine base. This rotary feed mechanism is known. A large number of mounting plates 2 are mounted at regular intervals between the endless chain conveyors 1. A suspension plate 5 provided with two sets of suspension legs 3, 3'and 4, 4 'facing each other on the left and right is fixed to the mounting plate 2. A pair of suspension legs 3 and 3'are respectively connected to upper link-shaped arms 7 and 7'through a support shaft 6,
The top and bottom are linked via the support shaft 8 to the rear vertical direction.
Connect to 9,9 '. The other suspension legs 4 and 4'are connected to the lower link-shaped arms 11 and 11 'via the support shafts 10, respectively, and their tips are connected to the connecting rod 12 between the rear vertical links 9 and 9'. Fixed. The upper link-shaped arms 7 and 7'and the lower link-shaped arms 11 and 11 'are parallel to each other and have the same length, and the lower arm is bendable at a fulcrum 13 near the support shaft 10. 14 is a weighing pan fixed on the rear vertical links 9 and 9 ', and 15 is a restoring spring 16 mounted on one side of the lower part of the link.
And 17 is a measuring rail.

[Action]

Since the present invention is configured as described above, in the process in which the desired article is stored in the weighing dish 14 and the chain conveyor 1 rotates in the A direction, weighing and sorting are performed according to a predetermined sorting section of the weighing object. In the Roberval mechanism formed between the upper link-shaped arms 7 and 7 ′ and the lower link-shaped arms 11 and 11 ′ and the rear vertical links 9 and 9 ′, the weight of the weighing pan 14 at the time of measurement is the rear vertical direction. Link 9,9 ′
A vertical measurement is performed by acting on the measuring piece 15 vertically through the measuring piece 15 and the weighing pan 14 is separated from the measuring rail 17 when the weighing pan 14 matches a predetermined selection weight value.
The weighing pan 14 fixed on the 9, 9'starts the backward rotary discharge operation. That is, the upper link-shaped arms 7, 7'rotate in the C direction about the support shaft 6, and the lower link-shaped arms 11, 11 'bend while rotating in the B direction at the fulcrum 13 about the support shaft 10. While operating in the state indicated by the chain line in FIG. This movement is such that the upper link-shaped arms 7, 7'and the lower link-shaped arms 11, 11 'have the same length, and the lower end of the rear vertical links 9, 9'is B by the refraction amount of the latter arm. When the weighing pan 14 is pulled in the direction, the weighing pan 14 has a large discharge angle, and the contained weighing object is quickly, stably and surely discharged to a predetermined position.

[Effect of device]

According to the present invention, as described above, the weighing device is directly fixed to the mounting plate mounted on the chain conveyor to form the Roberval mechanism, and the contents supporting posture of the weighing pan fixed on the rear vertical link is always vertical. While ensuring stability, the upper link arm and the lower link arm are made parallel and of the same length to eliminate causes of anxiety such as shaking and displacement during measurement transfer, and especially the lower link arm can be bent freely in the middle part. As a result, the rotation discharge angle of the weighing pan is large when the weighing pan is rotated, so that the contents can be discharged quickly and reliably, and the effect of improving the functionality is great.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention, FIG. 2 is a side view of the same as above, and a chain line is an explanatory view of its operation. 2 ... Mounting plate, 3, 3 ', 4, 4' ... Suspension leg, 5 ... Suspension plate, 6 ... Support shaft, 7, 7 '... Upper link arm, 8
…… Spindle, 9,9 ′ …… Rear vertical link, 10 …… Spindle, 11,11 ′ …… Lower link arm, 12 …… Coupling rod, 13
…… Support point, 14 …… Weighing pan

Claims (1)

(57) [Scope of utility model registration request] 1. A plurality of mounting plates mounted at regular intervals between the endless chain conveyors on both sides, which are opposed to each other on the left and right sides.
A pair of suspension legs is fixed to the suspension plate, and one suspension leg is connected to the upper link-shaped arm via a support shaft, and the tip of the suspension leg is fixed to the upper part of the weighing plate. Connected to the link, the suspension legs of the other set are connected to the lower link-shaped arm via the support shaft, respectively, and the tip of the leg is fixed to the link rod of the rear vertical link, so that the upper link-shaped arm and the lower link-shaped arm are A weighing plate rotating device in a weight sorter, wherein the lower link-shaped arms are parallel to each other and have the same length, and the lower link-shaped arms can be bent at a fulcrum near the supporting shaft on the hanging leg side.