JPS6025548Y2 - Weighing device - Google Patents

Description

[Detailed description of the invention] This invention relates to a weighing device that measures the weight of an object by temporarily stopping it at the weighing section during the process of transporting the object, attaches a desired label, and then discharges the object. be.

Conventionally, in this type of device, the weighing section is also composed of a conveyor driven by a motor, and its weight is extremely large, and its initial load is high for a scale.

Therefore, it is difficult to increase the sensitivity and accuracy of the measuring section, and moreover, it is necessary to construct a large-scale device as a fully automatic system.

This invention was devised in view of the above points, and the object is to obtain a weighing device that can reduce the weight of the weighing section.

This idea uses a tiltable roller conveyor for the weighing section, which enables the objects to be weighed to be transported by their own weight and can be temporarily stopped by a stopper during weighing, thereby significantly reducing the weight of the weighing section. Moreover, the stopper for controlling the feeding of the object to be weighed can be easily formed from a lightweight material.

An embodiment of this invention will be described based on the drawings.

First, a table 1 is provided, and a conveyor frame 2 having a U-shaped cross section is attached over the entire length of the front side of the table 1.

Inside this conveyor frame 2, there is a carry-in conveyor section 3 from the left.
, a measuring section 4, and a pasting conveyor section 5 are successively arranged.

A main body 7 equipped with an automatic pasting device 6 is provided at the back of the pasting conveyor section 5.

Furthermore, a V1 detector 8, a V2 detector 9, and a 3 detector 10 are provided, each of which detects the advancing position of the object to be weighed A.

Next, details of the carrying-in conveyor section 3 are shown in FIG.

That is, three rollers 11, 12, and 13 are arranged in parallel, and the roller 11 is connected to a motor 15 via a belt 14.

Further, the roller 12 has a multi-stage shape in which a large diameter portion ξ and a small diameter portion are alternately formed, and a plurality of round belts 16 are arranged at predetermined intervals between the large diameter portion and the roller 11. A plurality of round belts 17 are wound between the small diameter portion of the roller 12 and the roller 13 and positioned between the round belts 16 .

Further, the pasting conveyor section 5 has two rollers 18 and 19.
A plurality of round belts 20 are wound in parallel between them, and the roller 18 is connected to a motor 22 via a belt 21.

The measuring section 4 is constructed as shown in FIGS. 3 and 4.

First, a frame body 23 is fixed on the table 1 and is configured to convert weight into an electrical signal using a load cell or the like, and a pan support frame 24 is attached to this frame body 23.

A fulcrum holder 25 is provided at the right end of the tray support frame 24, and a roller conveyor 27 is rotatably attached to it by a shaft 26 serving as a fulcrum.

The left lower surface of this roller conveyor 27 is connected to the tray support frame 2.
It is received by a receiving rubber 24a fixed to 4.

The roller conveyor 27 includes a roller holder 28 made of sheet metal and a plurality of rollers 30 attached to a support shaft 29.

Further, a plate plate 31 serving as a stopper is provided to cover the right half of the roller conveyor 27 and is fixed to the plate support frame 24, and a square hole 32 is formed at each position where the rollers 30 are present. There is.

Further, a solenoid 33 serving as an operating part is attached to the left side of the frame body 23, and the push-up rod 34 of this solenoid 33 is located at the lower left end of the roller conveyor 27. Normally, there is a gap in the non-contact state. It becomes.

In such a configuration, the object to be weighed A is transferred to the carry-in conveyor section 3 from a supply section (not shown).

In this carry-in conveyor section 3, the mass roller 12.1
The paper is placed on a round belt 17 between three spaces, and since the circumferential speed of this round belt 17 is slow, the conveyance speed is low.

Then, when transferred to the round belt 16, the round belt 1.6
Since the circumferential speed of is high, the conveyance speed of the object to be weighed A is high.

As a result, even if the objects to be weighed A are continuously fed, the distance between them becomes large on the round belt 16.

Then, when the object to be weighed A is detected by the ■□ detector 8, the carry-in conveyor section 3 stops.

Therefore, if this is the -th object to be weighed A, the carry-in conveyor section 3 starts operation and transfers it to the weighing section 4, provided that the solenoid 33 is OFF, and the second and subsequent objects are transferred to the weighing section 4. If the object to be weighed is A, the OF of the object to be measured A in front
At time F, the operation of the carry-in conveyor section 3 is restarted and the object to be weighed A
is transferred to the measuring section 4.

In this weighing section 4, the v2 detector 9 detects the object A to be weighed and generates a signal indicating that the object A is present on the weighing section 4.

The object to be weighed A is stopped by a plate plate 31 which acts as a stopper, and when the weighing operation is completed, a solenoid 3 which will be described later
Remain in position until 3 is activated.

Then, after a certain period of time, the frame body 23 performs scale data sampling, and the data is taken into the circuit within the body 7.

At the same time as this data is taken in, calculations are performed within the main body 7, and a label is printed by a printer (not shown), and the solenoid 33 is operated.

As a result, the push-up rod 34 rises, and the roller conveyor 27 is tilted about the shaft 26 so that the left end is facing upward.

As a result, the roller 30 protrudes upward from the square hole 32 and transfers the object to be weighed A toward the pasting conveyor section 5.

In this pasting conveyor section 5, when the V3 detector 10 detects the object to be weighed A, the motor 22 is stopped to stop the pasting conveyor section 5.

Then, during this stop, the automatic pasting device 6 is operated to paste a label on the object to be weighed A.

Then, the stop time of the motor 22 is controlled by a timer,
The pasting conveyor section 5 operates again to carry out the object A to be weighed.

As mentioned above, this device uses a roller conveyor that can freely rise and fall to form the weighing section, and depending on the inclination of the roller conveyor, it can be positioned above or below the top surface of the rollers to convey the objects to be weighed. Since a stopper is provided to control the weight, there is no need to install a motor in the weighing section. This has the advantage that it can be easily manufactured using parts.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, in which Fig. 1 is a perspective view, Fig. 2 is a front view of the conveyance system, Fig. 3 is a side view of the measuring section, Fig. 4 is a plan view thereof, and Fig. 4 is a plan view thereof. Figure 5 is a timing chart. 3... Loading conveyor part, 4... Measuring part, 5... Pasting conveyor part, 27... Roller conveyor, 30... Roller , 31...
Plates (stotuba).

Claims (1)

[Scope of utility model registration request] A conveyor section that carries in an object to be weighed, a weighing section that measures the weight of the object, and a pasting conveyor section that affixes a label to the object and then discharges the object. The roller conveyor is formed by a roller conveyor, and the roller conveyor is provided so as to be tilted toward the pasting conveyor section, and the roller conveyor is provided so that when the roller conveyor is tilted, the roller is lower than the upper surface of the roller. A weighing device comprising a stopper that projects upward from the upper surface of the roller when the roller conveyor returns to a horizontal direction.