JP2930396B2 - Weighing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weighing device for automatically weighing an object to be sorted by weight.

2. Description of the Related Art Japanese Patent Application Laid-Open No. Sho 59-76583 discloses an endless body 1 which is driven to rotate vertically (in the direction of arrow B) with respect to an installation location A as shown in FIG. turn was placed in the bucket 2, the discharge station 4 ₁ is placed on the bucket 2 more buckets 2 with weighing station 3 disposed to the outside of the endless member 1 is attached to weighed sorting goods for the
When passing through 4 _N , the weight of each item to be sorted is compared with the weight rank of the discharge station, and when the bucket 2 arrives at the discharge station of the corresponding weight rank, the bucket 2 is tilted. Te position of the discharge station in question for example in Figure 7 is configured to discharge the sorted object goods at the location of each weight categories and so the position of the discharge station 4 _2.

The length of the Invention Problems to be Solved by such a conventional configuration, when the increasing number selection rank longer placement length of the discharge station 4 ₁ to 4 _N, endless member 1 forward 5 However, there is a problem that the size of the apparatus becomes longer and the size of the apparatus further increases.

 An object of the present invention is to realize a compact device.

Means for Solving the Problems The weighing device of the present invention is an endless body that is horizontally rotated, the forward path and the return path are in the same plane, and is driven to rotate. A plurality of buckets on which articles are placed; a tare storage means for storing a tare amount of each bucket; and a container disposed on the upstream side in the transport direction of the transport path of the endless body, and rotationally driven in the same direction as the endless body. Weighing means for measuring the load of the bucket passing therethrough, detecting means for detecting which bucket the measured bucket is, and transport of at least one of the forward path and the return path of the endless body. The bucket is tilted by comparing the weight value of the weighing conveyer corresponding to the bucket passing the set weight and subtracting the tare amount from the weighed value of the weighing conveyor, and comparing the net weight value of the sorted target product with the corrected net weight value. Select A discharge station for discharging another target product is provided, and a drain hole is formed in the bottom surface of the bucket.

According to this configuration, since the endless body rotates horizontally and the forward path and the return path are in the same plane, the discharge station can be provided not only on the forward path but also on the return path. And even if the sorting target product containing water is placed on the bucket, the water flowing out of the sorting target product is discharged through the drain hole from a time before the bucket tilts and discharges the sorting target product. . More specifically, unnecessary water is discharged from the bucket before the bucket reaches the weighing means for measuring the weight of the sorting target product, so that the net weight of the sorting target product can be accurately measured.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIGS. Note that components having the same functions as those in FIG. 7 showing a conventional example are denoted by the same reference numerals and described.

In the weighing device of the present invention, as shown in FIGS. 1 and 2, the endless body 1 is arranged so as to rotate horizontally with respect to the installation location A, so that the forward path 5 and the return path 6 are in the same plane. is there. A plurality of buckets 2 on which items to be sorted are placed are attached to the endless body 1 at predetermined intervals. Here the forward fifth endless member 1 is arranged the discharge station 4 _{10-4 40} along the conveying direction C, a discharge station 4 _{11-4 41} is arranged in the return path 6. The upstream side of the discharge station 4 _{10-4 40} forward 5 are mounted weighing machine 7. The weighing machine 7 measures the load of the passing bucket.

The discharge station 4 _{10-4 40,} 4 _{11-4 41} discharge trigger 8 _{10-8 40} provided on, 8 _{11-8 41,} each weighing values and the discharge station ₄₁ to ₄ weighing conveyor 7 The vehicle is operated as follows based on the set weight rank.

The tare amount of each bucket 2 is stored in the tare memory in advance. A first position detector for detecting the passage of each bucket 2 and a second position detector for detecting that a specific one of the buckets 2 has passed the position immediately before the weighing machine 7 are provided. cage, the second position detector resets the counted content of the counter upon detection of a first-th bucket 2 ₁ as the specific bucket count contents of the counter is incremented each time the bucket 2 passes .
Based on the count value of the counter, the tare amount is read from the tare memory, and the weighing value of the weighing machine 7 is corrected by the tare amount of each of the read buckets to calculate a net weight value. A rotary encoder is directly or indirectly attached to a motor for rotating and driving the endless body 1, and each discharge station 4 is synchronized with the conveyance of the endless body 1.
Identify the buckets that have reached ₁₀ to 4 ₄₀ and 4 ₁₁ to 4 ₄₁ , and the net weight value of the items to be sorted placed in those buckets,
The set weight of each discharge station 4 ₁₀ to 4 ₄₀ and 4 ₁₁ to 4 ₄₁ is compared with the weight rank, and the bucket on which the sorting target items matching the weight rank are placed arrives at its own discharge station. When discharge trigger 8 ₁₀ to 8 ₄₀ , 8 ₁₁ to 8 ₄₁
Is driven, the bucket is tilted, and the articles to be sorted are discharged at an appropriate discharging station.

The first figure and the second figure is driven with the discharge trigger 8 _20, 8 _31, the bucket has arrived to the discharge station 4 _20, 4 ₃₁ at that time is tilted.

Thus, the outgoing path 5 and the return path 6 of the endless body 1 are located at the installation location
Because of the same horizontal plane with respect to, when it becomes much weight rank sorted, not only the discharge station 4 _{10-4 40} of the first group of forward 5, discharge station of the second group to return 6 4 ₁₁ it is possible to provide a to 4 _41, the endless member 1
Can be made shorter than that of the conventional example shown in FIG. When the bucket 2 is rotated from the forward path 5 to the backward path 6 without tilting, the endless body 1 may be rotated at high speed for the purpose of high-speed processing. As shown in FIGS. 3 and 5, the bucket 2 of this weighing device has the discharge side outlet 9 inclined upward by the angle α, so that the endless body 1 changes from the forward path 5 to the backward path 6. At the opposite point 10, the items to be sorted are restricted by the upwardly inclined discharge-side outlet 9, and a situation such as jumping out of the bucket 2 can be avoided.

In the above embodiments by providing a weighing machine 7 to the forward 5 only, a case has been described to perform the sorting and the discharge station 4 _{10-4 40} of the first group in the second group of discharge stations 4 _{11-4 41,} respectively forward path 5 to return 6 by installing weighing machine 7, the discharge station of the discharge station 4 _{10-4 40} forward 5 backward 6
4 ₁₁ may also be implemented separate sorting between ~ 4 _41. In this case, as shown in FIG. 4, the bucket 2 is tilted at the end 11 of the return path 6 so that the sorting target product is not conveyed from the return path 6 to the forward path 5.

Linear movement section between the front and rear linear movement section and each station of the discharge station 4 _{10-4 40} forward 5, backward of the discharge station 4 _{11-4 41} back and forth linear movement section and linear movement section between the stations A guide rail 12 is provided on the fixed side at the turning point 10 from the outward path 5 to the return path 6, and a part D of the supporting portion of the bucket 2 on the moving side is formed on the back side of the guide rail 12 as shown in FIG. And the bucket 2 is not tilted. In FIG. 3, the upper part of the fixed side 13 and the upper part of the movable side 14 are connected by a link 15a,
The lower part of the fixed side 13 and the lower part of the movable side 14 are connected by a link 15b, and the rear end of the link 15a is extended inside the endless body 1 to be part D and engages with the back surface of the guide rail 12. ing. A roller 16 is attached to a lower portion of the movable side 14 and, when passing through the weighing machine 7, rides on a mounting table and lifts up to measure.

A protrusion 17 is provided on the back surface of the bucket 2. The projection 17 is connected to the movable side 14 by a shaft 18 so as to be tiltable.

As described above, the bucket 2 not only has the discharge-side outlet 9 inclined upward by the angle α, but also the rear end portion 19 inclined upward by the angle β. As shown in the figure, a valley 20 which is the lowest is formed in a portion of the bottom of the bucket 2 which is lower than the deep end 19. The valley 20 has a hole 21 for draining water.

With this configuration, assuming that the operator places fresh fish 22 as an object to be sorted on the bucket 2 at a position in front of the weighing machine 7, the water flowing out from the gills 23 of the fresh fish 22, etc. Since the water flows out of the bucket 2 from the hole 21 formed in the bucket 2 and the bucket 2 reaches the weighing machine 7, no water is accumulated in the bucket 2, so that the weight of the fresh fish 22 can be accurately measured.

In the above embodiment, the discharge stations are provided on both the outward path 5 and the return path 6, but it is also possible to provide a discharge station only on the return path 6.

Effects of the Invention As described above, according to the present invention, since the endless body rotates horizontally and the forward path and the return path are in the same plane, not only the forward path of the endless body but also the return path can be used for the sorting operation. Even when the number of sorting ranks increases and the number of sorting stations increases, the required length of the endless body can be shortened, and the apparatus can be further downsized.

Further, since a drain hole is formed in the bottom surface of the bucket, even if a sorting target product containing water is placed on the bucket, the water flowing out of the sorting target product is tilted by the bucket and the bucket tilts. Unnecessary water is discharged from the bucket before the bucket reaches the weighing means that measures the weight of the sorting target product, and the net weight of the sorting target product is reduced. It can be measured accurately.

[Brief description of the drawings]

1 is a plan view of an embodiment of a weighing device of the present invention, FIG. 2 is a front view of the device, FIG. 3 is a sectional view of the device, FIG. 4 is a plan view of a bucket, and FIG. FIG. 6 is a side view of the bucket, FIG. 6 is a longitudinal sectional view of the bucket, and FIG. 7 is a front view of a conventional weighing device. 1 endless body, 2 buckets, 4 ₁₀ to 4 ₄₀ , 4 ₁₁ to 4 ₄₁
…… Discharge station, 5… Outbound, 6… Return, 7…
… Weigher, 9… discharge side outlet, 10… turning point, 21… hole [drain hole].

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tomiwa Masumoto 2-35 Jinmucho, Yao-shi, Osaka Inside Kubota Kuhoji Plant (56) References JP-A-62-237981 (JP, A) JP-A Sho 59-25712 (JP, A) Fully open 1981-7584 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G01G 15/00 G01G 11/00 G01G 23/16 A47G 19 / 00-19/34 B07C 5/16-5/32

Claims (1)

(57) [Claims] 1. An endless body which is horizontally rotated so that an outward path and a return path are in the same plane and is driven to rotate, a plurality of buckets mounted on the endless body at a predetermined interval, and on which objects to be sorted are placed, and each bucket. Tare storage means for storing a tare amount of, and disposed on the upstream side in the transport direction of the transport path of the endless body,
The endless body is driven to rotate in the same direction as the endless body, weighing means for measuring the load of the passing bucket, detection means for detecting which bucket the measured bucket is, Nets of the sorting target items which are arranged on at least one of the forward path and the return path and which are corrected by subtracting the tare amount from the set weight of each set weight and the weighing value of the weighing conveyor corresponding to the bucket passing therethrough. A weighing device comprising: a discharge station for tilting the bucket in comparison with a weight value and discharging a sorting target product; and a drain hole formed in a bottom surface of the bucket.