JPS5844044Y2 - Carrier in double-acting trolley conveyor - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a carrier in a double-acting trolley conveyor, particularly a conveyor used in a pretreatment process such as an electrodeposition process or an undercoating process for conveyed objects.

In the electrodeposition process or the undercoating process, the workpiece is immersed in the electrodeposition liquid or coating liquid along with the hanger while the workpiece is conveyed by a conveyor hanger.

Therefore, after passing through these process lines, there is a problem in that the electrodeposition liquid and the like that adhere to the upper part of the electrode drip onto the workpiece.

Conventionally, the hanger was equipped with a gutter that guided the liquid dripping from the top of the hanger to the outside without letting it fall onto the workpiece.
There was a problem that the 5-input structure became complicated.

In view of the above-mentioned circumstances, the object of this invention is to provide a carrier which has an extremely simple structure and which can prevent the pretreatment liquid from dripping onto the workpiece.

Hereinafter, embodiments of this invention will be described in detail based on the drawings.

In this specification, "front and rear" refers to the direction of movement of the carrier, and "left and right" refers to the front.

The double-acting trolley conveyor has a free rail 20 arranged along a conveyance route and a power rail 10 provided slightly above the free rail 20.

Both rails 10.20 are connected by connecting frames 15 at required intervals.

Roller 12 that can be transferred freely to power rail 10
A power trolley 13 equipped with a power rail 10
They are placed at the required distance along the road.

These power trolleys 13 are interconnected by a drive chain 11.

The drive chain 11 is driven once by a drive device (path shown).

A propulsion tool 14 is pivotably attached to each power patrol 13 by a shaft, and the propulsion tool 14 hangs down due to its own weight and tilts diagonally downward at the rear.

Further, the propeller 14 has a T-shape when viewed from above, and has a hook formed at its lower end.

A carrier 30 is supported on the free rail 20 so as to be freely movable.

The carrier 30 is located between the front free trolley 21 having a pair of front and rear tilting dogs 25, the rear free trolley 22 having a cam 26 for pushing up a propulsion device projecting rearward, and between both trolleys 21.22. The intermediate free trolley 23, a connecting rod 24 connecting these free trolleys 21 to 23, and a frame 31 attached to the intermediate free trolley 23 are constructed.

The free trolleys 21 to 23 each have rollers 27, which are movably received by the free rail 20.

In addition, there is a stop pin 2 on the front free trolley 21.
8 is provided.

The hook of the propulsion device 14 of the power trolley 13 is free at the front.
By engaging the tilting dog 25 of the trolley 21, the carrier 30 is driven forward.

The frame 31 is composed of a pair of front and rear arms 32 and connecting rods 33 and 34 that connect these arms 32 at their upper portions.

The arm 32 has an upper horizontal portion 32a extending to the right from a position directly below the free trolley 23 (this is referred to as the left and right center), a vertical portion 32b extending downward from the right end of this upper horizontal portion 32a, and a vertical portion 32b extending downward from the right end of this upper horizontal portion 32a. 5 towards the left from the bottom end of portion 32b
Each of these parts is formed by a single tube bent so that the boundaries of each part draw a smooth curve.

The lower half of the vertical portion 32b of the front arm 32 is inclined rearward.

The upper lateral portions 32ai, i of the arm 32 are inclined downward from the left and right centers to the left and right.

The mounting portion 32c extends to the left of the left and right centers, and is inclined so that the right and left centers are the lowest.

The loading portion 32c is for placing the object to be transported S1, which is also a load-bearing object, and a receiving plate 36 and a slip stopper 37 for the object to be transported S are fixed to both ends thereof.

The connecting rods 33 and 34 connect the front and rear arms 32 to their upper lateral parts 3.
2a and the top end of its vertical portion 32b, respectively.

These connecting rods 33, 34 are sloped such that they are highest at the center of the front and back and become lower as they go in the front and back direction.

If necessary, the front arm 32 may be connected by a connecting rod 35 at the leftmost end of its mounting portion 32c, as shown by the chain line.

This connecting rod 35 is preferably inclined so that it is lowest at the center of the front and back.

Support rods 41 extend downward from the intermediate free trolleys 23, respectively.

A contact 42 and a hanging arm 40 are attached to the lower end of this support rod 41 via an insulator 44 and an attachment piece 47, respectively.

The contactor 42 is located on the right side of the support rod 41 and comes into contact with a power supply line (not shown) provided at the electrodeposition process location.

This contact 42 is connected to the support rod 41 by a cable 43.

The hanging arm 40 is curved in a C-shape, and its center portion protrudes to the left.

The lower end of the hanging arm 40 is connected to a bracket 39 fixed to the connecting rod 33 of the frame 31 via a link 45.

As a result, the hanger frame 31 is suspended from the hanging arm 40 so as to be swingable in the front-back direction.

The hanging arm 40 and the frame 31 are electrically connected by a cable 46.

Both Toro! A horizontal cover 51 is provided along both rails 10.20 at the height of the hanging arm 40 so as to cover directly below the running progress of 713.21-23.

This cover 51 is attached to a support frame 5 fixed to a ceiling or the like.
It is attached to 2.

The vertical portions of the support frame 52 may also be provided with covers.

This horizontal cover 51 connects the rail 10.20 to the trolley 13.
．． This is to prevent wear debris, lubricating oil from trolleys, etc. from falling onto the conveyed object S due to the movement of the trolleys 21 to 23, and to prevent foreign matter from adhering to the conveyed object during the electrodeposition process, painting process, etc. It is provided over the section that should be covered.

Furthermore, the frame 31 is
A drip prevention cover 53 is provided in a section where it is necessary to prevent the electrodeposited liquid attached to the object S from dripping onto the conveyed object S.

This cover 53 covers the upper horizontal portion 3 of the hanger frame 31.
A rail 10.20 is installed at a height slightly below 2a over a width that can cover almost the entire upper horizontal portion 32a.
It slopes downward from left to right.

This cover 53 is also attached to a support frame 54 fixed to the ceiling or the like.

Covers may also be provided on the vertical portions of the support frame 54.

In a pretreatment process such as an electrodeposition process or an undercoating process, the conveyed object S is crushed together with the frame 31 in an electrodeposition liquid or the like.

Therefore, the electrodeposition liquid and the like adhere to the hanger frame 31 as well.

However, the substantially horizontal members of the hanger frame 31 above the conveyed object S, in this embodiment, the upper lateral portion 32a1 of the arm 32, the connecting rods 33, 34, and the central portion are highest in the right or front-back direction. Since the slope becomes lower toward the top, the liquid adhering to these members flows along the slope and does not drip onto the object S to be transported.

Even if liquid drips from the upper horizontal member 32a, it is caught by the cover 53 and does not fall onto the transported object S.

Since the vertical portion 32b of the arm 32 of the frame 31 is provided only on one right side, and the frame 31 is formed in a so-called cantilevered manner, the left side of the frame 31 is open, and therefore drips over a required area. It is possible to provide a prevention cover 53.

In fact, since the mounting portion 32c of the hanger frame 31 is inclined so that its center is the lowest, the frame 3
All the liquid that has flowed through 1 is transferred to this mounting portion 32c.
Collect in the center of the bottle and drip from there.

Therefore, the dripping range of the liquid from the frame 31 is very narrow, so that the surrounding area is not contaminated, and it is sufficient to provide a gutter for receiving the dripping liquid only directly below the rail 10.20.

As described above, according to this invention, the part that connects and supports the loading part of the Nga frame on which the objects to be transported are placed to the free trolley can only be attached to one of the left and right sides in the direction of travel. Since the Nga frame is made in a single-sided format, and the left and right sides are open, a drip-prevention cover is provided to protrude from this open part.・It becomes possible to sufficiently cover the upper part of the transported object on the frame.

In addition, all of the members of the hanger frame located above the conveyed object and extending in a nearly horizontal direction are highest at the center of the frame and slope downward as they move outward. Liquid adhering to the substantially horizontally extending members of the hanger frame always flows outward and does not drip onto the conveyed object.

Moreover, unlike the conventional case, there is no need to provide a gutter or the like on the engine frame to receive the dripping liquid, so the structure is extremely simple.

Furthermore, because the mounting area of the hanger frame is lowest at the center of the frame and slopes upward as it goes outward, all liquid flowing down the frame will be directed to the center of the mounting area. Collect 1 and drip from here.

Therefore, the dripping range of the liquid from the frame is very narrow, so there is no need to contaminate the surrounding area, and the gutter that receives the dripping liquid only needs to be installed below the line of movement at the lowest point. Easy to work with.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, the first being a side view and the second being a side view.
It is a sectional view between figures. 10...Power rail, 20...Free rail, 21-23--Free trolley, 30...Carrier, 31-...・Hanger frame, 32...Arm, 32a...
・Upper horizontal part, 32b... Vertical part, 32c...
...Placement part, 33, 34...Connection rod.

Claims (1)

[Claim for Utility Model Registration] Consisting of a free trolley that can run freely on free rails and a hanger frame suspended from the free trolley, the portion of the hanger frame on which the transported object is placed. The part that connects and supports the horizontal loading part to the free trolley is
All of the members of the frame, which are provided on only one side of the left and right sides in the direction of travel and are located above the transported object and extend approximately horizontally, are highest at the center of the frame and extend outwards. It is lowest at the center of the frame, and slopes upward as it goes outward. carrier in a roller conveyor (double-acting).