JPH0131874B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for continuously classifying and sorting rod-shaped articles based on their weight values.

Note that the rod-shaped articles in the present invention include cigarettes,
Refers to rod-shaped objects such as filters or rods.

In the tobacco manufacturing industry, measuring the weight of cigarettes and filters and sorting them by grade has important significance in quality control.

[Problems with conventional technology]

Conventionally, a device for sorting and sorting rod-shaped articles transfers weighed rod-shaped articles to a predetermined classification box position, and then injects and sorts them.
(No. 11200, No. 54-43910) The problem is that the device becomes large in size, and there is a desire for something that can be done efficiently in a small amount of space.

[Means for solving problems]

The present invention aims to solve this problem. In other words, the rod-shaped articles (hereinafter referred to as samples) supplied one by one are weighed while being transferred in the longitudinal direction of the sample, and based on the weighed value, the classification box is slid in the direction perpendicular to the direction of transfer of the sample. The present invention provides a method and apparatus for classifying samples by classifying them into classes.

This will be explained below with reference to the drawings.

As shown in FIG. 1, the apparatus of the present invention comprises a supply section 1, a transfer section 2, a measuring section 3, and a classifying section 4.

The supply unit 1 includes a hopper 12 provided in a side plate 11 on a base 5, and a delivery drum 13 provided below the hopper 12 and having a groove 13a on the circumference.
and a guide plate 14a provided diagonally from below the sending drum 13 toward the transfer section 2, a detector 15a attached to a detector fixing plate 15b fixed to the side plate 11, and a guide from the bar 14c. It consists of a restraining plate 14b suspended by a thread 14d so as not to touch the plate 14a, and the delivery drum 13 is connected to a drive unit (not shown) by a delivery drum shaft 13b.

The transfer section 2 includes a first transfer groove 2 provided on the base 5.
0, a second transfer groove 35 fixed via a support member 36 to a shaft 37 swingably provided between the side plate 11 and the side plate 28b, and the side plate 28 on the base 5.
a third transfer groove 38 provided on the same axis as the first transfer groove 20 and having one end protruding from b.
, a first pusher 21 provided in the first transfer groove 20, a second pusher 39 provided in the second transfer groove 35, and a pusher moving means.
The pusher moving means includes the side plates 28a and 28b.
Two slide shafts 2 provided parallel to each other between
5, a rack 24a is slidably provided in parallel with the transfer groove, and protrusions 23b-1, 23b-2, 23c provided at the upper end of the rack 24a.
-1, 23c-2 and the protrusions 23b-1 and 23c
-1 and between 23b-2 and 23c-2, a shaft 23a provided parallel to the slide shaft 25.
1 and 23a-2, and a first shaft rotatably provided on the shaft 23a-1 via a bearing (not shown).
The support member 22a of the pusher 21 and the shaft 23a
A support member 22-2 of the second pusher 39 is swingably provided on -1 and 23a-2 via bearings (not shown), a pinion 24b is provided so as to mesh with the rack 24a, and pinion 24
A shaft 24c to which b is attached, and a rack moving means (not shown) connected to one end of the shaft 24c.
, pusher position detection sections 26b and 26c provided on both sides of the rack 24a, and a pusher position detection limit switch 26a provided on a side plate 26d supporting the shaft 24c. The pusher support members 22a, 22b
There is a pusher up/down lever 29 below the side plate 28a,
It is fixed to the tip of a holder 34 provided on both sides of a bar 30 rotatably provided on the bar 28b. A pulley 33 is provided at one end of the bar 30, and is swingable by a motor 27 provided on the side plate 28a. 31 is a pusher timing plate provided at one end of the bar 30;
Close to this, a limit switch 32 is installed on the side plate 28.
It is located at a.

The measuring section 3 is located below a gap formed between the measuring section main body 40 on the base 5, the first transfer groove 20 and the second transfer groove 35, and the second transfer groove 20 and the third transfer groove 38. It consists of saucers 41 extending upward from the measuring section main body 40 so as to be located at the respective positions. Inside the measuring unit main body 40, there are a measuring unit of the receiving tray 41, a signal generating circuit (not shown) for extracting the measured value as an electric signal, a grading circuit (not shown) for classifying this signal, and a corresponding one. A classifying box moving motor control device (not shown) is configured to drive a classifying box moving motor (not shown) in accordance with an output signal from the grading circuit and a signal from a classifying box position detector 54 (described later). Built-in.

The classification section 4 has a classification box 50 partitioned into several chambers by a partition plate 50a, and the classification box 50 has a bearing 51b mounted on a shaft 51a provided on the base 5 in a direction perpendicular to the third transfer groove 38. It is provided so that it can be slid through. A rack 52a is provided at the bottom of the classification box 50, and a pinion 52b is provided on the base 5 so as to mesh with the rack 52a. The pinion 52b is connected to a drive motor (not shown) by a drive shaft 52c. A plurality of position detection ends 53a, 53b, 53c, 53d, and 53e are provided on the side of the classification box 50 in the sliding direction, and a position detector 54 is installed on the base 5 in parallel to the position detection ends. has been done.

[Effect]

Next, the operation of the present invention will be explained.

The samples contained in the hopper 12 are taken into the groove 13a of the delivery drum 13, and are delivered one by one to the first transfer groove 20 by the rotation of the delivery drum 13. The holding plate 14b prevents the sample from falling out of the groove of the delivery drum.

When the detector 15a senses that the sample has been delivered to the first transfer groove 20, the pinion 24b is rotated by a pusher moving motor (not shown), and the rack 24a is moved to the right. Rack 24a
In response to the movement, the first pusher 21 and the second pusher 39 move rightward, and the sample is transferred in the longitudinal direction. Pusher position detection limit switch 26a is easily moved 24a to left end 26b
When detected, the movement of the pusher is stopped. Next, the motor 27 is rotated, and in order to rotate the bar 30 so as to lift the pusher up/down lever 29 in the direction of the arrow, the first pusher 21 and the second pusher
The pusher 39 is lifted from the first transfer groove 20 and the second transfer groove 35. Next, the pusher moving motor reverses, and the first pusher 21 and the second pusher 39 move leftward until the pusher detection limit switch 26a detects the right end of movement 26c. The first pusher 21 mentioned above
By this movement, the sample on the first transfer groove 20 is transferred onto the second transfer groove 35.

The sample placed on the second transfer groove 35 is transferred to the receiving tray 41 and weighed by reversing the shaft 37 in the direction of the arrow by a swinging means (not shown). After a certain period of time, the second transfer groove 35 returns to its original state.

When the weighing is completed, the weight signal is transmitted to a classification circuit (not shown), classified into grades according to established standards, and converted into a classification signal. Furthermore, the classification signal is controlled by a control device for moving the classification box (not shown).
can be conveyed to.

The motor control device for moving the classification box receives the classification signal and also uses a detector 54 provided on the base 5.
While receiving signals from the classification box, the motor for moving the classification box (not shown) is rotated forward or reverse until a proper position detection end of the classification box is detected. The movement of the motor for moving the classification box is made easy by the pinion 52b.
2a, the classification box 20 moves on the slide rod 51.

By repeating the pusher operation again, the sample on the second transfer groove 35 is transferred to the appropriate chamber of the classification box 50 through the third transfer groove 38.

In this way, the samples are sequentially classified into classes.

When the hopper 12 becomes empty, the delivery drum 13 rotates for a certain period of time and then stops. Only in this case, the first pusher 21 and the second pusher 39 are
It is activated and sends the sample on the second transfer groove 35 to the classification box 50.

Note that in this example there are two pushers, but there is one
It may also be configured such that it is made into a book and is further advanced after weighing.

〔Effect of the invention〕

According to the present invention, the distance for transferring the sample before and after weighing can be shortened, and the sample transfer, which conventionally required two operations, can be carried out in one operation.
This can be done in one motion, making it possible to make the device more compact, and also to prevent damage to the sample, making it useful in the tobacco industry.

[Brief explanation of drawings]

FIG. 1 is a perspective view of one example of the method and apparatus of the present invention. DESCRIPTION OF SYMBOLS 1... Supply part, 2... Transfer part, 3... Measuring part, 4... Classifying part, 5... Base, 12... Hopper, 13... Delivery drum, 20... First transfer groove, 21... First pusher, 35... First 2nd transfer groove, 38...3rd transfer groove, 39
...Second pusher, 40...Measuring section main body, 50...Classifying box.

Claims (1)

[Claims] 1. A step of supplying the rod-shaped articles one by one, a step of transporting the supplied rod-shaped articles in the longitudinal direction of the rod-shaped articles, a step of weighing the rod-shaped articles, and a step of weighing the rod-shaped articles based on the measured value. . A method for classifying rod-shaped articles, comprising the step of moving a classification box for rod-shaped articles in a direction perpendicular to the transfer direction of the transferring step. 2. A hopper, a delivery drum provided below the hopper, a transfer path provided in parallel to the rotating shaft at the lower side of the delivery drum, a pusher provided in the transfer path, and a front transfer path. A measuring section provided in the middle of the measuring section, a classifying box that moves in a direction perpendicular to the transfer path on the side of the measuring section, and a control device that moves the classifying box to an appropriate position based on a signal from the measuring section. A device for classifying rod-shaped articles.