JPH02123020A - Spiral weight lift machine - Google Patents

Abstract

PURPOSE:To contrive the simplification of constitution, smallness of floor space and the improvement of conveying performance by spirally arranging many free rollers in the peripheral surface of a vertical rotary shaft between upper and lower part transfer-loading tables respectively connected to conveyers, in case of the captioned weight lift machine between the conveyers of different height. CONSTITUTION:A motor 6 is normally rotated turning a rotary shaft 1 rotating free rollers 12 in a direction of lifting a spiral surface, and chain conveyers 23, 45 are driven running respectively in a direction of arrow head A. Thus, a conveyed object 16 is fed from a lower part conveyer 15, transfer-loaded successively onto free rollers 19 and lifted by the free rollers 12. The conveyed object is discharged to an upper part conveyer 34 through an upper part transfer-loading table and conveyed in a direction of arrow head G. By this constitution, conveying performance can be increased with less floor space, and with simplified constitution.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an m-conveying device that vertically conveys and transfers objects to be conveyed.

[Conventional technology]

Vertical 111 transport devices for transferring objects such as cardboard boxes between conveyors of different heights include elevators and chains in which a large number of object mounting tables are arranged at regular intervals on an endless chain 7 that circulates in the vertical direction. There are conveyor-type lifts and lifting lifts that have a place for placing crystals.

[Problem to be solved by the invention]

However, in many of these 41wt conveying devices, when transferring articles between the upper and lower conveyors, the vertical conveying device must be stopped to perform the transfer operation, and the conveyors also reciprocate up and down. Since the device is used for conveyance only in one direction, it wastes a large amount of time and has the drawback that it cannot efficiently and continuously convey a large amount of objects.

Further, the '4i1 conveying apparatus is generally large in scale, and has the disadvantage that the apparatus occupies a large floor area and the equipment cost of the apparatus increases.

The present invention has been made to solve these problems, and has a large transport capacity because it continuously transfers and vertically transports objects, has a simple structure, and has low equipment costs. The present invention provides a spiral lifting machine that occupies a small floor space.

[Means to solve the problem]

In order to achieve the above object, the spiral lifting machine of the present invention includes an upper transfer table and a lower transfer table that protrude substantially horizontally from the outer peripheral surface of the rotating shaft, respectively, at the upper and lower parts of the rotating shaft whose upper and lower ends are supported. A loading table was provided, and a large number of free rollers were arranged spirally between the upper and lower transfer tables.

Then, one or more lower tables are provided close to the outside of the rotation trajectory of the lower transfer table, a lower conveyor is provided adjacent to the lower table, and a lower conveyor is provided adjacent to the lower table, and close to the outside of the rotation trajectory of the upper transfer table. and an upper table positioned above the lower table, and an upper conveyor is provided adjacent to the upper table to prevent objects to be transported from falling out of the rotation trajectory in the vertical direction from the lower table to the upper table. The spiral lifting machine configured as above and provided with a guide for preventing rotation of the transported object and a guide for preventing the rotation of the transported object can transport the transported object vertically upward and downward, but the case of upward transport will be explained below. .

The upper surface of the spirally arranged free rollers forms a substantially spiral surface.

When this spiral surface rotates in the upward direction and the lower transfer table approaches the lower table, the transfer device is activated and the objects on the lower conveyor are transferred to the lower transfer table via the lower table. .

The conveyed object transferred onto the lower transfer table tries to rotate with the lower transfer table, but it comes into contact with the rotation prevention guide and is prevented from rotating, and is placed on the rotating free roller, preventing rotation. The upper transfer table has been rotated by rising along the guide and the guide to prevent it from falling out of the rotation path! 3! When the object is placed, the transfer device operates and the object is transferred to the upper conveyor via the upper table.

When multiple lower conveyors and upper conveyors are installed, the upper transfer table approaches each upper table at the same time as the lower transfer table approaches each lower table. The above operations are performed simultaneously and in parallel.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a front view of the spiral lifting machine, FIG. 2 is a cross-sectional view showing the lower transfer section, and FIG. 3 is a cross-sectional view showing the upper transfer section.

In the figure, reference numeral 1 denotes a rotating shaft whose upper and lower ends are supported by bearings 2 and 3. Sprockets 4 and 5 are fixed to a small diameter portion 1a provided at the lower end, and the output shaft of a motor 6 with a reducer is attached. A chain 78 is wound around the fixed sprocket 7 and sprocket 4.

An upper transfer table 9 is provided at the upper part of the rotating shaft 1 and protrudes approximately horizontally from the outer circumferential surface of the rotating shaft 1 (see FIG. 3). A lower transfer table 10 protruding from the top is provided (see FIG. 2).

Both the upper transfer table 9 and the lower transfer table 10 are
Pole casters 11 are attached to the top surface to facilitate the transfer of objects to be transported.

Between the upper transfer table 9 and the lower transfer table 10, a free roller 1 is fixed to the outer peripheral surface of the rotating shaft 1 and is attached to the upper part.
A large number of arms 13 supporting the free rollers 12 are arranged in a spiral manner, and the conveying surface connecting the upper surfaces of the respective free rollers 12 forms a substantially spiral surface (see FIG. 4).

The lower table 14 is installed close to the outside of the rotation locus of the lower transfer table 1O, which rotates with the rotation axis 1.

In FIG. 2, the number of lower tables 14 is two, and they are arranged symmetrically with respect to the rotation axis 1, but the number of lower tables may be one, or three as shown in FIG. It is also possible to do this.

The lower table 14 is provided with pole casters 11 on its upper surface, and a lower conveyor 15 is installed adjacent to the lower table 14.

The lower conveyor 15 carries objects 16 such as cardboard boxes.
It is a conveyor that feeds the liquid to the lower transfer table 10, and has an accumulation part having a friction roller 18 driven by a motor 17, and a supply part having two rows of free rollers 19 with a space in the center. Vertically movable swivels 20 and 21 are disposed at the rear end of the friction roller 18 and the rear end of the free roller 19, respectively.

A transfer device consisting of a conveyor chain 23 with a dog 22 is provided in the central space of the free roller 19.

A bearing (not shown) is installed on the left side of the small diameter portion 1a of the rotating shaft l.
A sprocket 25 is fixed to the lower end of the shaft 24, a chino 26 is wound around the sprocket 5, and two hevel gears 28 are mounted on a bevel gear 27 provided at the upper end of the shaft 24. They mesh (see Figures 1 and 6).

A sprocket 3 is attached to the shaft 29 to which the bevel gear 28 is fixed.
0 is fixed, and a sprocket 3 fixed to a shaft 31a to which a driving sprocket 31 of the conhair chain 23 is fixed.
A chino 32 is wound around 1b and the sprocket 30.

The upper table 33 is installed at a position close to the outside of the rotation locus of the upper transfer table 9 and above the lower table 14.

A pole cask 11 is provided on two sides of the upper table 33, and an upper conveyor 34 is installed adjacent to the upper table 33.
will be installed.

The upper conhair 34 has rollers 36 driven by a motor 35.

A bevel gear 37 is fixed to a small diameter portion 1b provided at the upper end of the rotating shaft (■), a sprocket 40 is fixed to a shaft 39 to which two bevel gears 38 that mesh with the bevel gear 37 are fixed, and the sprocket 40 is attached to a chino 41. A drive side sprocket 46 of a compare chain 45 with a dog 44 is fixed to a shaft 43 to which the sprocket 42 is fixed (see Fig. 7 and Fig. 1). A pedestal 47 is installed around the roller 12, and the pedestal 47 includes a guide 48 for preventing the conveyed object 16 from falling out of the rotation trajectory from the lower table 14 to above the upper table 33, and a guide 48 for preventing rotation. A guide 49 is provided.

The drop-off prevention Ichikawa guide 48 prevents the transferred object 16 transferred to the lower transfer table 10 from moving to the opposite side of the rotating shaft 1 due to the centrifugal force of rotation, and is located above the lower table 4. Two guides are provided in the vertical direction from the transfer guide 50 provided on the upper table 33 to above the transfer guide 5I of the upper table 33.

The rotation prevention guide 49 prevents the transported object 16 transferred to the lower transfer table 1° from moving in the rotational direction of the lower transfer table 10.
It has a pressing surface in a direction perpendicular to.

In addition, the guide 48 for preventing falling off and the guide 49 for preventing rotation
In order to prevent contact friction with the conveyed object 16, the helical surface constituted by the upper surface of the free roller 12 is moved in the same direction and in the same direction as the speed at which the helical surface rises or falls F with the rotation of the rotation axis l. It is also possible to use a heald conhair or roller cone structure that rotates at the same speed.

The operation of the spiral lifting machine configured as described above will be explained.

When the motor 6 is rotated forward, the rotation axis l is rotated by the free roller 1.
The spiral surface of 2 rotates in the upward direction, and the con hair chain 2
3.45 rotates in the direction of arrow A.

On the lower conveyor 15, a plurality of general conveyance items I6 are placed on a rotating friction roller 18, and a stopper 2 is placed on the rotating friction roller 18.
Running is stopped by 0, accumulated by ``1'',
The objects 16 to be transported are placed on the free roller 1'J.

When the lower transfer table 10 approaches the lower table 14, the stopper 21 descends and the dog 22 of the conveyor chain 23 moves the conveyed object 1 on the free roller 19.
6, the transported object 16 is pushed in the direction of arrow F and runs on the lower table 14,
0 and attempts to rotate together with the lower transfer table 10, but it hits the anti-rotation guide 49, lands on the rotating free roller 12, and moves along the anti-rotation guide 49 and the guide 48 for preventing falling off. When it rises and transfers from the free roller 12 to the upper transfer table 9, it hits the dog 44 of the conveyor chain 45 rotating in the direction of arrow A, and is discharged to the two-part conveyor 34, where the upper part rotates in the direction of arrow G. It is conveyed in the direction of arrow G by the conveyor 34.

When the conveyed object 16 on the free roller 19 is transferred to the lower transfer table IO, the stopper 20 is lowered and the conveyed object 16 on the flexible roller 18 is sent onto the free roller 19, and the vertical conveyance described above is carried out. The operation is carried out, and the objects I6 to be transported are continuously and automatically sent to the upper conveyor 34 one after another.

When the lower table 14 is arranged at three locations as shown in FIG. This allows for extremely efficient vertical conveyance.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces effects as described below.

(1) Spiral lifting equipment transfers objects to and from the upper and lower conveyors without stopping rotation, so there is no downtime for transfer, and a large amount of objects can be efficiently transported in a short period of time. can.

(2) Since the conveyor chain and the stopper are synchronized with the rotation of the rotating shaft, the objects to be conveyed can be automatically and continuously conveyed vertically.

(3) Since the spiral lifting machine has an extremely simple structure, the manufacturing cost of the crotch fiiff is low.

Moreover, since it is light in weight, transportation and installation work are easy.

(4) Since the floor space of the spiral lifting machine is small, the limited floor space of a warehouse or factory can be used effectively.

(5) Since the spiral lifting machine can see through objects being vertically transported from the surrounding area, it is convenient for monitoring automatically operated equipment.

(6) It is possible to transport cardboard boxes, etc., without giving any impact to the objects to be transported.

[Brief explanation of the drawing]

Figures 1 to 7 show embodiments of the present invention, with Figure 1 being a front view of the spiral lifting machine, Figure 2 being a cross-sectional view showing the lower transfer section, and Figure 3 showing the upper transfer section. Figure 4 is a perspective view of the free rollers arranged in a spiral pattern, Figure 5 is a layout diagram (schematic diagram) when the lower table, which is a loading station, is installed at three locations, and Figure 6 is the lower part. FIG. 7 is a schematic diagram showing a rotation transmission mechanism of a two-part conveyor chain. ! ...Rotating axis, 6...Motor, 9...Upper transfer table, 10...Lower transfer table, 11...Pole caster, 12...Free roller 13...
Arm, work 4...Lower table, 15...Lower conveyor, 16...General conveyance, 17...Motor 18.
...Friction roller 19...Free roller, 20.21...Stopper, 22...Dog, 2
3... Chain conveyor, 33... Upper table, 3
4... Upper conveyor, 35... Motor, 36...
・Roller, 44... Dog, 45... Conveyor chain, 47... Frame, 48... Fall prevention guide,
49...Guide for preventing rotation. Patent applicant: Japan Tobacco Inc. No. 4 ■

Claims (2)

[Claims] (1) An upper transfer table and a lower transfer table protruding approximately horizontally from the outer peripheral surface of the rotating shaft are provided at the upper and lower parts of the rotating shaft, which is supported at both upper and lower ends and rotationally driven by a motor, etc., and the rotating shaft is rotated. A large number of free rollers supported by arms fixed to the shaft are arranged in a spiral pattern between the upper transfer table and the lower transfer table, and one or more free rollers are provided outside the rotation locus of the lower transfer table. A lower table is provided adjacent to the lower table, a lower conveyor is provided adjacent to the lower table, and one or more upper tables are provided close to the outside of the rotation locus of the upper transfer table and located above the lower table. An upper conveyor is provided adjacent to the upper table, and a guide for preventing the conveyed object from falling off and a guide for preventing the conveyed object from rotating are provided in the vertical direction from the lower table to the upper table, and the upper table and A spiral lifting machine characterized by a transfer device installed on the lower table. (2) The above fall prevention guide and rotation prevention guide are
Constructed by a conveyor that rotates in the same direction and at the same speed as the spiral surface formed by the upper surface of the free rollers arranged in a spiral manner rises or falls with the rotation of the rotating shaft. The spiral lifting machine according to claim 1, characterized in that: