JPH0110149Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a conveying device for electric arc rods.More specifically, in the manufacturing process of electric arc rods, flux is applied vertically to the core wire from a coating machine. This relates to a moving belt conveyor that turns the incoming electric arc rod horizontally, changes its direction, and sends it to a continuous drying oven.

Prior Art In the conventional manufacturing process of electric arc rods, electric arc rods are fed vertically from a coating machine by a cross belt, and the electric arc rods continuously hit a rotating stopper, and one by one, the electric arc rods are horizontally fed into the valleys of the chevron-shaped belt below the rotating stopper. After being carried a certain distance by a chevron belt, it is transferred to two narrow flat belts on either side and sent to a brushing process, and after brushing both ends, it is sent to a drying oven.

When the electric arc rod that is sent vertically at high speed from the paint sprayer by the cross belt collides with the rotating stopper and falls, it is quickly dropped to the bottom of the valley of the chevron belt by the permanent magnet placed on the back side of the chevron belt made of sponge. However, the problem with the electric arc rod stuck in the bottom of the valley of the angled belt was that the flux immediately after painting adhered to the sponge of the angled belt and hardened, damaging the covering flux of the electric arc rod that later entered the valley.

To explain in more detail, in Figure 1,
In the production of electric arc rods, conventional electric arc rod core wires are sent from a wire feeder 1 that feeds out the wire that is the core of the welding rod, and sent to a coating machine 2 that coats with flux. The belt collides with the rotary stopper 5 in the longitudinal direction, and is dropped one by one into the valleys of the chevron belt 6, which alternately forms a plurality of peaks and valleys at predetermined intervals perpendicular to the cross belt 4, and is then sent a certain distance. , chevron belt 6
The electric arc rod is transferred to narrow flat belts 7 on both sides of the electric arc rod, and then transferred to a brushing conveyor 8 in the brushing process that brushes both ends of the electric arc rod, where both ends are brushed by a brush wheel 9 and sent to a drying oven. . The width of the chevron belt 6 cannot be made too large because it is restricted by the flat belts 7 on both sides to which it is transferred next.

In FIG. 1, the flat belt 7 extends from the delivery side end of the chevron belt 6 to the brushing conveyor 8, as shown by a solid line.

Note that the portion indicated by the dashed line is not found in the prior art and is related to the present invention. Further, the cross belt 4 is driven in the direction of arrow X, and the chevron belt 4 is driven in the direction of Y, which is perpendicular to X.

As mentioned above, in the prior art, the flat belt 7
The electric arc rod 3 advances in the longitudinal direction on the cross belt 4, and the electric arc rod 3 is ejected toward the chevron belt 6 by inertia at the exit end of the cross belt 4.

Therefore, when the electric arc rod 3 collides with the rotation stopper 5 in the vertical direction by the cross belt 4, the electric arc rod 3 is moved between the valleys of the angle belt 6 due to the rotational force of the rotation stopper 5 and the attractive force of the permanent magnet arranged on the back side of the angle belt 6. They quickly get stuck in the bottom one by one and are conveyed together with the chevron belt 6 while changing direction in the Y direction.

It should be noted that the electric arcing rods are forced to fall into the valleys of the chevron belt because it is difficult for the electric arcing rods to fall one by one into the valleys of the chevron belt, and because of the attractive force of the rotating stoppers and permanent magnets 10, the electric arcing rods are forced to drop into the valleys of the chevron belt rapidly. If it is not dropped, the electric arc rods will collide with each other and cause disturbances on the chevron belt.

However, in the above-mentioned prior art, only the end portion of the chevron belt 6 overlaps with the chevron belt 6. Therefore, the electric arcing rod 3 falls to the bottom of the angled belt 6, and the flux immediately after coating adheres to the sponge of the angled belt 6 and hardens, causing a problem that the coating flux of the electric arcing rod 3 that comes next is damaged.

Problems to be Solved by the Invention This invention was made in order to solve the above-mentioned problems in the conventional electric arcing rod conveying device. It is an object of the present invention to provide a conveyance device that prevents an electric arc rod from being damaged by flux accumulated at the bottom.

Structure of the invention This invention includes a first conveyor that conveys electric arcing rods at predetermined intervals in the longitudinal direction, and an electric arcing rod that runs in a direction substantially perpendicular to the conveying direction of the first conveyor and is discharged from the first conveyor. receive,
An electric arc rod comprising a chevron belt having a plurality of peaks and valleys, and a second conveyor that is provided in parallel on both sides of the chevron belt and runs while receiving both ends of the electric arc rod conveyed by the chevron belt. In the direction changing device, the second conveyor is provided with an electric arc rod extended to a point where it receives the electric arc rod from the first conveyor.

Embodiment An embodiment of this invention will be described below with reference to the drawings.

In one embodiment of this invention, the flat belt 7 extends in parallel on both sides of the chevron belt 6, as shown by the dashed line, to the shaft 11 of the driven pulley provided at the end on the stopper side. The electric arc rod 3 released from the cross belt 4 is received on this flat belt 7. A band-shaped sponge is stretched over the upper surface of the flat belt 7 on both sides, and the covering flux will not be damaged even if the electric arc rod is supported. Moreover, the upper surface of the sponge of the flat belt 7 is raised 2 to 3 mm higher than the bottom of the valley of the chevron belt 6.

According to the above-described configuration, the electric arc rod 3 is ejected from the cross belt 4 toward the chevron belt 6 in the X direction.
Both ends of the electric arc rod 3 are supported by the upper surface of the flat belt 7 and sent in the Y direction. Further, the intermediate portion of the electric arcing rod 3 enters the valley portion of the angled belt 6, and the direction of the electric arcing rod 3 is adjusted and aligned on the slope of the angled belt 6.

However, since the electric arc rod 3 is supported by the flat belt 7, it does not fit into the bottom of the valley of the chevron belt 6. Therefore, the coating flux of the electric arc rod is less likely to adhere to the sponge of the chevron belt 6.

Further, when the electric arc rod that has entered the valley of the chevron belt 6 is transferred, it becomes easier to come out from the chevron belt.

Also, rather than receiving and supporting the electric arc rod with only a relatively narrow chevron belt, the flat belts 7 on both sides of the electric arc rod
It is more stable to transport the electric arc rod by supporting both ends of the rod.

It is also more stable when catching the electric arc rod that collides with the rotating stopper 5 and falls than when only the chevron belt is used.

In addition, there is a transition belt that changes the direction of this electric arc rod.
In other words, the use of the chevron belt and the flat belts on both sides is not limited to immediately after painting, but can also be applied when changing the direction of the dried electric arc rod after leaving the drying oven.

Furthermore, as an example of applying this idea to dry electric arcing rods, an apron conveyor with protrusions at regular intervals in the lateral direction is arranged in the middle, and a chain conveyor or belt conveyor is placed on both sides of the conveyor to help stabilize the electric arcing rod. This method is also applied to conveyors that change the direction of electric arc rods. The protrusion is for aligning the electric arc rods in the horizontal direction.

Effects of the invention As detailed above, this invention provides the following effects by extending the flat belts on both sides of the angle belt to the driven pulley side of the angle belt.

(1) When the electric arc rod that collides with the rotating stopper falls and is rapidly dropped into the valley of the chevron belt by the permanent magnet, the electric arc rod is supported by the flat belts on both sides and does not get stuck at the bottom of the valley. The coating flux does not adhere to the sponge of the chevron belt,
It no longer damages the electric arc rod that comes next.

(2) When the electric arc rod collides with the rotating stopper and rapidly falls to the crossing belt below, it is stable because it is supported by the flat belts on both sides.

(3) The chevron belt serves to align the electric arcing rods horizontally in parallel, and the flat belts on both sides serve to support and convey the electric arcing rods, so the electric arcing rods do not get stuck in the bottom of the valley of the chevron belt. The coating flux can be transported smoothly without being damaged, and the electric arc rod can be easily separated from the chevron belt.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of this invention, and FIG. 2 is a side view of the main part of FIG. 1. 1... Wire feeder, 2... Painter, 3...
Electric arc rod, 4...Cross belt, 5...Rotating stopper, 6...Chevron belt, 7...Flat belt.

Claims (1)

[Scope of utility model registration request] A first conveyor that conveys electric arc rods at predetermined intervals in the longitudinal direction; and a plurality of piles that travel in a direction substantially perpendicular to the conveying direction of the first conveyor and receive electric arc rods discharged from the first conveyor. A device for changing the direction of electric arc rods, comprising: a chevron belt having a trough and a second conveyor, which is provided parallel to both sides of the chevron belt and runs while receiving both ends of the electric arc rod conveyed by the chevron belt. A device for changing the direction of electric arcing rods, characterized in that the second conveyor extends to a point where the electric arcing rods are received from the first conveyor.