JP2511922Y2 - Overhead conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention is designed to prevent an air trap inside a vehicle body immersed in a liquid in an electrolytic cell in an overhead conveyor, for example, a painting line of an automobile factory. The present invention relates to a conveyor that conveys while inclining.

2. Description of the Related Art As a conveyor of this type, for example, Japanese Patent Laid-Open No. 59-4591 is used.
As disclosed in the publication, a hoist equipped with a carrier that moves forward and having left and right suspension lines hanging from the carrier at a distance in the left-right direction, and a hoist having left and right suspension lines from the carrier. A hanger suspension frame that is hung and provided with left and right horizontal rotation shafts extending in the front-rear direction, and a hanger suspension frame that is attached to both front and rear ends of the left rotation shaft and that has a load carrying portion at the lower end. A pair of left hangers, and a pair of right hangers attached to the front and rear ends of the right rotation shaft, respectively, and having a conveyed object mounting portion at the lower end thereof. It is known that both left hangers and both right hangers are fixed to a right rotation shaft.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above-mentioned conventional conveyor, it is necessary to use other transport means such as a forklift when loading and unloading the transported object on the transported object placement section, which makes loading and unloading work troublesome. Met.

An object of the present invention is to solve the above problems and provide an overhead conveyor that can easily perform loading / unloading work.

An overhead conveyor according to the present invention is equipped with a hoist having left and right suspension ropes which are mounted on a forwardly moving carrier and which are hung from the carrier at intervals in the left-right direction, and a left-right suspension. A hanger suspension frame that is hung from a carrier by ropes and provided with left and right horizontal rotating shafts extending in the front-rear direction, and a hanger suspension frame that is attached to the front and rear ends of the left rotating shaft and is placed at the lower end. In an overhead conveyor comprising a pair of left hangers provided with, and a pair of right hangers attached to the front and rear ends of the right rotation shaft, respectively, and provided with a conveyed object placing portion at the lower end, Both left hangers with respect to the left rotation axis and both right hangers with respect to the right rotation axis are both swingable around an axis extending in the left-right direction. -The actuator is installed so as to face the direction orthogonal to the axis of the left rotation axis and can be rotated together with the left rotation axis, and the right rotary actuator is orthogonal to the axis of the right rotation axis on the right rotation axis. The left rotary actuator is equipped with a pair of left arms facing in opposite directions, and the output shaft of the right rotary actuator is opposite to each other. The pair of right arms facing each other is fixed, both left hangers and both left arms are connected by a pair of left rods, and both right hangers and both right arms are connected by a pair of right rods. It is characterized by.

Action In the overhead conveyor according to the present invention, both left hangers with respect to the left rotation axis and both right hangers with respect to the right rotation axis are both swingable around an axis extending in the left-right direction. The rotary shaft is equipped with a left rotary actuator so as to face the direction orthogonal to the axis of the left rotary shaft and can be rotated together with the left rotary shaft. The output shaft of the right rotary actuator is fixed to the output shaft of the left rotary actuator with a pair of left arms facing in opposite directions. A pair of right arms facing in opposite directions are fixed to the shaft, and both left hangers and both left arms are connected by a pair of left rods. Since the hanger and both right arms are connected by a pair of right rods respectively, when the left and right rotary actuators are operated, the left and right hangers are swung in the opposite directions, and It can be opened and closed.

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

In this embodiment, with respect to the front and rear, the side on which the trolley moves is referred to as the front, and the opposite side is referred to as the rear with reference to the moving direction of the trolley (indicated by the arrow in FIG. 1). Left and right are called left and right.

The overhead conveyor consists of the main rail 10 and the main rail 10
The sub-rail 11 extending to the left of the car in parallel with this, the self-propelled drive trolley 12 traveling on the main rail 10, the front main driven trolley.
13 and a rear main driven trolley 14, a front sub driven trolley 15 and a rear sub driven trolley 16 traveling on the sub rail 12, a driving trolley 12 and a rod 17, and four driven trolleys 13 to 16
And a carrier 18 that is suspended in the.

The drive trolley 12 is provided with four vertical running rollers 21 rolling on the upper surface of the lower web of the main rail 10 and electric wheels 22 pressed against the lower surface of the web. Since the four driven trolleys 13 to 16 have the same structure,
Explaining only the front auxiliary driven trolley 15 shown in the drawing (the left and right are reversed in FIG. 4), this includes the auxiliary rail
Two vertical running rollers 23 rolling on the upper surface of the lower web 11
Further, there are provided four horizontal anti-vibration rollers 24 that sandwich the web from both left and right sides.

The carrier 18 is assembled by a plurality of vertical members 31 and horizontal members 32 into a substantially lattice shape. A hanging columnar hanger anti-vibration member 33 is provided at the center of the carrier 18. The bottomed fitting hole 34 (Fig. 4) is upward from the lower end of the hanger anti-vibration member 33.
Is provided.

Hoists 41 are attached to both ends of the rear edge of the carrier 18 in a suspended manner. Each hoist 41 is provided with a pair of suspension ropes 42,43. Of the pair of hanging ropes 42, 43, one hanging rope 42 hangs as it is from the hoist 41, but the other hanging rope 43 is hooked on a guide pulley 44 arranged immediately below the hoist 41. And the other guide pulley 45 arranged in front of the pulley 44
And hangs from substantially the front edge of the carrier 18. The hanger unit 51 is hung from the lower ends of the four hanging ropes 42, 43 via the hanging tool 46.

The hanger unit 51 includes a hanger suspension frame 52 and a hanger 53, as shown most clearly in FIG.
Consists of. The hanger suspension frame 52 is provided with a pair of front and rear cross members 54 extending in the left-right direction in parallel with each other, a connecting rod 55 passed in the middle of the length of both cross members, and left and right ends of both cross members 54. And a pair of left and right hanging bars 56. In the middle of the length of the connecting rod 55, an upward projecting vertical fitting rod 57 that is fitted into the fitting hole 34 of the hanger anti-vibration member 33 is provided. The front ends of the two hanging rods 56 project forward of the front cross member 54, and the rear ends thereof project rearward of the rear cross member 54.
An engaging pin 58 is provided. A pair of left and right rotary shafts 59 extending in the front-rear direction are provided in parallel with each other near both ends of the horizontal members 54. Gate-shaped brackets 61 are fixed to both ends of both rotating shafts 59 so as to straddle both lateral members 54. A pair of ears 62 is provided on the outer surface of the vertical plates of both brackets 61, and a hanger is attached to a horizontal pin 63 passed to each pair of ears 62.
The upper ends of 53 are pivoted one by one. Both brackets 61
At both ends of the horizontal plate, a U-shaped guide / stopper 64 in plan view is provided so as to sandwich the upper end of the hanger 53 at its parallel portion. Further, one rotary actuator 65 is mounted laterally in the middle of the length of the horizontal plate, and a pair of arms 66 opposite to each other are fixed to the output shaft of the rotary actuator 65. The ends of two arms 66 on the same side on the left and right and the upper end of the hanger 53 are connected by a rod 67. At the lower ends of all the hangers 53, there is provided an article placing portion 68 so that those on the right and left sides face each other. A connecting rod 69 is provided near the lower ends of the two hangers 53 on the same side in the front-rear direction so that the hangers 53 can freely swing in the left-right direction.

When both rotary actuators 65 are operated, as shown in FIG. 3, two hangers 53 on the same side on the left and right oscillate in opposite directions to open and close.

Except when necessary, as shown in FIG. 3, the suspension ropes 42, 43 of the hoist 41 are wound up, and the hanger suspension frame 5
1 is at the upper limit. As shown in FIG. 7, when the hanger suspension frame 51 is brought above the electrolytic cell T,
The hanging ropes 42, 43 of both hoists 41 are unreeled all at once to lower the hanger hanging frame 51. Then, when the transported article W hung on the hanger 53 is immersed in the liquid in the electrolytic cell T,
This time, one of the left and right suspension ropes 42, 43 is wound up and the other is extended so that the length of the hanging portions of the suspension ropes 42, 43 of both hoists 41 changes. Then, the hanger suspension frame 52 is tilted and the hanger 53 is not tilted, but the heights of the left and right hangers 53 are changed.
The conveyed article W placed over the sheet is inclined. As a result, even if there is an air pocket in the conveyed product W, the air and the liquid there are replaced and the air pocket disappears.

Effect of the Invention According to the present invention, when the left and right rotary actuators are operated, the left and right hangers are swung in opposite directions to open and close the load carrying parts of the left and right hangers. Conveyed goods can be easily loaded and unloaded from the unit.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a perspective view of the entire conveyor, FIG. 2 is a perspective view of a hanger, FIG. 3 is a side view of the entire conveyor, and FIG. 4 is a front view of the entire conveyor. FIG. 5 is a sectional view taken along line VV of FIG. 4, and FIG. 6 is VI of FIG.
A cross-sectional view taken along the line -VI, and FIG. 7 is an explanatory view of the usage state. 18 ... Carrier, 41 ... Hoist, 42, 43 ... Suspended rope, 52 ...
Hanging frame, 53 ... Hanger, 59 ... Rotating shaft, 65 ... Rotary actuator, 66 ... Arm, 67 ... Rod, 68 ...

Claims (1)

(57) [Scope of utility model registration request] 1. A hoist 41 equipped with a carrier 18 moving forward and having left and right suspension ropes 42, 43 hanging from the carrier 18 at a distance in the left-right direction, and a left and right suspension ropes 42, 43. A hanger suspension frame 52, which is hung from the carrier 18 at 43 and provided with left and right horizontal rotation shafts 59 extending in the front-rear direction, and is attached to the front and rear ends of the left rotation shaft 59, respectively, and is conveyed to the lower end. A pair of left hangers 53 provided with an object placing portion 68.
And a pair of right hangers 53 attached to the front and rear ends of the right rotation shaft 59 and provided with the transported object placement portion 68 at the lower end.
In an overhead conveyor equipped with, both left hangers 53 with respect to the left turning shaft 59 and both right hangers 53 with respect to the right turning shaft 59 are both swingable about an axis extending in the left-right direction. The left rotary shaft 59 is equipped with the left rotary actuator 65 so as to face the direction orthogonal to the axis of the left rotary shaft 59 and to be rotated together with the left rotary shaft 59. 59 is equipped with a right rotary actuator 65 in a direction orthogonal to the axis of the right rotation shaft 59 and can be rotated together with the right rotation shaft 59. The output shaft of the left rotary actuator 65 is oriented in opposite directions. While the pair of left arms 66 is fixed, the pair of right arms 66 facing in opposite directions are fixed to the output shaft of the right rotary actuator 65, and the left hanger 53 and the left arms 66 are joined by a pair of left rods 67. That The right hanger 53 and the right arm 66 are connected to each other, and a pair of right rods 67
An overhead conveyor characterized by being connected with each other.