JPS60158002A - Automatic bagging method of meltage - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic bagging method for melted material, such as asphalt emulsion, which is automatically injected into bags.

Asphalt emulsion is poured into a paper bag in a fixed amount in a high temperature molten state (
After curing, the paper bags are sealed and shipped from the factory.

Conventionally, the bagging method involves placing a paper bag that is folded flat and has a closed mouth inside a metal transport can and transporting it on a conveyor, and just before reaching the syringe if (below the syringe), the paper bag's mouth is closed. The asphalt milky lotion was injected into the paper bag using a syringe after opening the part manually and maintaining this state for a while without removing the hand.

For this reason, it was not only dangerous but also time-consuming and a major obstacle to full automation. In addition, because the asphalt milk is injected with the mouth of the paper bag fully open, the asphalt emulsion adheres to the outer surface of the paper bag, causing problems such as the paper bags adhering to each other, and the sealing being difficult to sew.

An object of the present invention is to provide an automatic bagging method that can bag melted materials such as asphalt emulsion completely automatically without manual intervention and without the above-mentioned disadvantages.

According to the present invention, this purpose is to transport a transport can containing bags on a conveyor and transfer it onto a lift installed below the syringe, and to remove the bags by a pair of vacuum suction members that open and close with each other. After the opening of the syringe is opened, the spout of the syringe is inserted into the bag by simultaneously raising the pair of vacuum suction members in this state, and the pair of vacuum suction members are lifted. This is achieved by closing the mouth of the bag with the spout of the syringe inserted into the bag, and injecting the melt into the bag through the syringe.

An embodiment of the present invention will be described below.

FIG. 1 is a side view of the bagging device used in the method of the present invention, and FIG. 2 is a front view of a portion of the bagging device. It consists of a lift 3 installed below the syringe 2, and a bag opening/closing mechanism 4 mounted on a column 1 so as to be movable up and down.

The syringe 2 has a spouting tube 6 whose lower end is a radial spout 5.
It is equipped with a valve that is opened and closed by an air cylinder 7 attached to its upper end, and when this valve is opened, the asphalt milky lotion supplied through the supply pipe 8 is poured into the spout section 5.
Pour downflow.

The lift 3 supports a roller conveyor 9 on a base 11 via a parallel link 10, and moves the roller conveyor 9 up and down using an air cylinder 12.

The bag opening/closing mechanism 4 includes a rail 13 provided at the top of the support column 1.
Two arms 15 are provided horizontally protruding forward on both the left and right sides of the lifting platform 14 that moves up and down along the axis. A fan-shaped drive gear 17 is fixed to the front shaft, and a driven gear 18 that meshes with the drive gear 17 is fixed to the front shaft, and a pair of front and rear vacuum suction members 19 are fixed to the link 20 and the arm 15 fixed to the shaft 16, respectively. The upper end of the link 20 fixed to the shaft 16 on the rear side is suspended from the arm 15 so as to be horizontally movable back and forth with the link 21 pivotally attached to the arm 15.
It is pin-connected to the piston rod of the opening/closing air cylinder 22 pivotally mounted above.

As shown in FIGS. 3 to 5, each vacuum suction member 19 has suction pads 25 fixed to both left and right sides of a vacuum pipe 24 supported by a bracket 23, and the vacuum pipe 24 is connected to a blower or the like through an air hose 26. Connected to a vacuum pump and evacuated.

The front and rear vacuum suction members 19 each have a central portion 24a of a vacuum pipe 24 curved outward into a substantially semicircular shape, and are opened and closed by the operation of the opening/closing air cylinder 22.

The elevating table 14 is pin-connected to a piston rod of an elevating air cylinder 27 that is pivotally connected to the support column 1, and is moved up and down by the operation of this air cylinder 27.

A carry-in conveyor 28 and a carry-out conveyor 29 are arranged on both left and right sides of the lift 3, and as shown in FIG. 31, and is carried into the main bagging apparatus along with the transport can 31 by the carrying conveyor 28, and transferred onto the roller conveyor 9 of the lift 3.

Before the transport can 31 is transferred onto the roller conveyor 9, the bag opening/closing mechanism 4 moves the front and rear vacuum suction members 19 at the lower position.
Since the paper bag 30 is opened, the paper bag 30 that has been carried in is located between the front and rear vacuum suction members 19. When it is detected that the transport can 31 has been transferred onto the roller conveyor 9, the opening/closing air cylinder 22 automatically moves back and forth, and the front and rear vacuum suction members 19 close and then open again. When the vacuum suction member 19 closes, both the front and rear outer surfaces are suctioned by the suction pad 25 as shown in FIG. As shown, the mouth portion 30a is opened.

When one reciprocating movement of the opening/closing air cylinder 22 is completed, that is, when the front and rear vacuum suction members 19 are closed and then reopened, the lifting air cylinder 27 and the air cylinder 12 of the lift 3 automatically move forward at the same time.

As a result, the paper bag 30 is raised to a predetermined height position together with the transport can 31 with its opening 30a held open by both vacuum suction members 19, and the spout 5 of the spout tube 6 is opened □. Insert it into the center of the opening 30a.

When the forward movement of the air cylinders 27 and 12 is completed, the opening/closing air cylinder 22 automatically moves forward, the front and rear vacuum suction members 19 are closed, and the opening 30a of the paper bag 30 is closed. At this time, the spout portion 5 of the spout tube 6 is inserted into the paper bag 30, and the central portions 24a of both vacuum pipes 24 are curved outward from each other, so the mouth portion 30a of the paper bag 30 is
As shown in FIG. 5, the spout portion 5 is closed at the center so as to be covered from both front and rear sides. This state is maintained by stopping the opening/closing air cylinder 22, and in this state, a certain amount of asphalt emulsion is injected by the injector 2 (the air cylinder 7 is operated and the valve in the spouting cylinder 6 is opened). ) is carried out. When this is completed, the opening/closing air cylinder 22 moves back and the front and rear vacuum suction members 19 open, the vacuum suction effect thereby stops, the suction by the suction pad 25 is released, and then the roller conveyor 9 of the lift 3 opens. By descending, the paper bag 30 is lowered together with the transport can 31 and transferred to the conveyor 29 for carrying out. Further, by the backward movement of the lifting air cylinder 27, the front and rear vacuum suction members 19 are also lowered while being opened, and returned to their original positions. The paper bags 3o transferred to the conveyor 29 for carrying out are sent to a weight needle and refilled with asphalt emulsion while being weighed.After that, the opening 3o is sealed using a sewing machine. Ru.

As described above, according to the present invention, a bag that is folded flat and has a closed mouth can be automatically opened and a molten material such as asphalt emulsion can be automatically poured into the bag. In addition, since the spout of the syringe is inserted into the bag and the mouth is injected while the bag mouth is closed, the melt does not adhere to the outside of the bag. Problems such as adhesion or impossibility of sealing with a sewing machine are eliminated.

[Brief explanation of the drawing]

Fig. 1.2 is a side view and a partial front view of an example of the bagging device used in the method of the present invention, and Figs. 3 to 5 show the opening of the paper bag being sucked, opened, and closed by a vacuum suction member. It is a perspective view which shows each aspect. 30.31a...paper bag and its opening, 31...conveying can, 28...carrying conveyor, 2.5...syringe and its spout, 3...lift, 19...・Vacuum suction member. Figure 1 Offshore Figure 2

Claims (1)

[Claims] 1. The transport can containing the bag is transported by a conveyor, placed below the syringe, and transferred onto a lift. The bag is sucked by a pair of vacuum suction members that open and close with each other, and the mouth of the bag is opened. After that, in this state, the pair of vacuum suction members are simultaneously lifted to close the spouting part of the syringe inside the bag, and the melt is injected into the bag through the syringe. Automatic bagging method for melted materials.