JPH02147509A - Conveyor belt and chip conveyor device - Google Patents

Abstract

PURPOSE:To prevent chips from slipping in a belt conveyor used for hauling out chips generated in machining works by cylindrically curling up both ends of a flat board in its cross direction to form belt pieces as connecting parts, and connecting the belt pieces rotatably and endlessly. CONSTITUTION:Cylindrically curled parts 3a, 3b are formed on both ends of a flat board in a same direction and varying their radii to form a belt piece 1. The curled part 3a of a belt piece 1 is rotatably connected with the curled part 3b of other belt piece 1. A required endless conveyor belt V is formed by repeating the procedure. The conveyor belt V is driven by angular shaft shaped rotary shafts S, S'. The slipping of chips can be prevented with this constitution since curled connecting parts project on the belt surface.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a conveyor belt used for carrying out chips produced by mechanical processing such as press working, and a chip conveyor device.

Note that the width direction J of the flat plate portion constituting the belt piece used in this specification refers to the length direction of the conveyor belt when a number of belt pieces are connected to form a conveyor belt. means the direction along.

[Conventional technology]

A conventional conveyor belt that constitutes a chip conveyor device has a structure in which a large number of flat belt pieces are connected by hinges.

That is, several cylindrically curled hinge joints are provided intermittently at predetermined intervals along the length of the belt piece at both ends in the width direction of a flat belt piece. The hinge joints provided intermittently at the ends of the belt pieces are alternately inserted and arranged in a straight line, and the hinge pins are inserted between the hinge joints arranged in a straight line to form a large number of belts. The pieces were connected endlessly.

In this way, if the conveyor belt has a structure in which a large number of belt pieces are connected by hinges, a large number of hinge pins are indispensable. A gap is created, and a chip gets caught in this gap, which may cause trouble in connecting the belt pieces.

Further, the drive structure of a chip conveyor device using such a hinged conhair belt was as follows.

That is, a driving chain is provided on both sides of the conveyor belt, a hinge connection part is integrally attached to this chain, and the hinge connection part attached to the chain and each belt piece making up the conveyor belt are connected to each other. with the hinge connection provided,
It has a structure in which it is connected with a hinge pin to drive a conhair belt. Such a drive structure requires a chain device exclusively for driving, and also requires a chain cover to cover the chain device to ensure safety, which has the disadvantage of increasing costs.

[Problem to be solved by the invention]

The present invention eliminates the need for hinge pins by connecting a large number of belt pieces without using hinges, and at the same time increases the connection strength between the belt pieces, and also forms large protrusions at the joints of the belt pieces. This was done with the aim of making it possible to transport chips without slipping.

[Means to solve the problem]

In the conveyor belt according to the present invention, two cylindrical connecting parts that are curled into a cylindrical shape and have different curl radii at both ends in the width direction of the flat plate part are on the same side with respect to the plate surface of the flat plate part. A large number of belt pieces are connected in an endless manner by using belt pieces that are positioned and integrally provided, and by rotatably fitting the cylindrical connecting parts provided on the belt pieces with different curl radii to each other. It is characterized by

Further, in the chip conveyor device according to the present invention, two cylindrical connecting portions that are curled into a cylindrical shape and have different curl radii are provided at both ends of the flat plate portion in the width direction, relative to the plate surface of the flat plate portion. By using belt pieces that are integrally located on the same side and rotatably fitting the cylindrical connecting parts with different curl radii provided on the belt pieces to each other, a large number of belt pieces can be made into an endless shape. a pair of rotating shafts in the form of square shafts each having a regular polygonal cross section, the length of one side of which corresponds to the length of the flat plate portion of the belt piece; It is characterized in that the hair belt is hung between a pair of rotating shafts.

[Action of the invention]

The conveyor belt according to the present invention connects a large number of belt pieces in an endless manner by rotatably fitting cylindrical connecting parts with different curl radii that are integrally provided on the belt pieces to each other. The hinge connection eliminates the need for multiple hinge pins, as in conveyor belts.

Also, unlike hinge connections, there is a
Since there are no gaps at all along this direction, chips will not be caught in the cylindrical connecting parts provided on the belt pieces during conveyance, and the cylindrical connecting parts connecting the belt pieces will not rotate. There will be no hindrance to movement.

When the conveyor belt is gradually reversed at the rotating shaft and the chips that have been conveyed are dropped, as the conveyor belt continues to reverse, the belt pieces become mated and connect with each other. In such a way that the central angle of the overlapping parts of each cylindrical connecting part gradually becomes smaller.
Each cylindrical connection portion pivots relative to each other. Therefore, the chip is not bitten by the cylindrical connecting portions that are fitted together.

〔Example〕

1 to 5 show a conveyor belt and a chip conveyor device according to the present invention.

FIG. 1 is a side view of the chip conveyor device, and FIG. 2 is a sectional view taken along line nn in FIG. 1. FIG. 3 is an enlarged vertical cross-sectional view of the rotating shaft S on the drive side of the chip conveyor device, FIG. 4 is a perspective view of the same, and FIG. FIG.

First, the conveyor belt (■) will be explained, and then a chip conveyor belt (2) using this conveyor belt (■) will be explained.

The conveyor belt v is composed of a large number of belt pieces 1. This belt piece l is formed by curling a metal plate, and as shown in FIG.
This rising portion is curled into a cylindrical shape to integrally provide cylindrical connecting portions 3a and 3b.

The cylindrical connecting parts 3a and 3b are located on the same side with respect to the plate surface of the flat plate part 2, and have different curl radii. The dimensions are such that the cylindrical connecting portion 3b is rotatably fitted.

A cylindrical connecting portion 3a is integrally provided on the belt piece 1.

3b, a large number of belt pieces 1 are connected endlessly to form a conveyor belt (2).

That is, the cylindrical connecting portion 3b provided on one of the two successive belt pieces l is connected to the cylindrical connecting portion 3b provided on the other side.
The two belt pieces 1 are connected to each other by being rotatably fitted into the belt a.

As shown in FIG. 1, a conhair belt (■) in which a large number of belt pieces 1 are connected endlessly has a pair of square shaft-like rotating shafts s.
, s'.

As shown in FIGS. 2 to 4, the drive-side rotating shaft S has a support shaft 5 sandwiched between a pair of half-split shafts 4, which are hexagonal shafts divided in half, and a connecting bolt 6, a nut 7, and an adjustment shaft. The structure is such that the half-split square shaft 4 is connected by a spring 8 and the support shaft 5 is sandwiched therebetween.

Therefore, the cross-sectional shape of the rotating shaft S is a regular hexagon, and the length of one side corresponds to the width W of the flat plate portion 2 of the belt piece 1. As shown in FIG. 2, the pair of half-split angle shafts 4 are connected at a plurality of locations at predetermined intervals along the length direction.

As shown in FIGS. 1 and 2, the length of belt piece l corresponds to the width when viewed from conveyor belt V)
Two guide plates 9 are provided facing each other with a slightly larger interval than the above, and their upper and lower ends are connected by a connecting plate 11. Bearings 1 are installed on the outside of both ends of the guide plate 9.
2 is attached, the rotating shaft S is arranged between a pair of guide plates 9, and the supporting shaft 5 constituting the rotating shaft S is attached to the bearing 1.
It is rotatably supported by 2. A drive motor M is attached directly above the rotation shaft S on the drive side, and a chain gear 14 is attached to the drive shaft 13 of the drive motor M, and a chain gear 14 is attached to the end of the support shaft 5 that constitutes the rotation shaft S. A chain 16 is suspended between the chain gear 15 and the chain gear 15.

The driven side rotating shaft S'' has a pair of half δ+7 square shafts 4 sandwiching the support shaft 5, which are integrally connected by a connecting bolt 6 and a naphut 7 without using an adjustment spring 8. The support structure is the same as the rotating shaft S on the drive side.

Further, a cylindrical connecting portion 3a provided at a connecting portion of a large number of belt pieces 1 constituting the conveyor belt V protrudes greatly from the belt surface, and a cylindrical connecting portion 3a is formed by this cylindrical connecting portion 3a. The chip 18, which is the object to be transported, is transported without slipping due to the protrusion.

When the drive motor M rotates the drive-side rotation shaft S, the conveyor bell IV suspended between the pair of rotation shafts s and s' travels in the direction shown by the arrow, causing the rotation of both ends. At the part of the shaft S, the belt pieces 1 are fitted into each other.
One of the cylindrical connecting parts 3a and 3b connecting each other rotates with respect to the other, so that the flat plate part 2 of the belt piece 1 forming the conveyor bell (V) is connected to the flat part of the rotation axis S. 17 while gradually turning over. As a result, the chips 18 conveyed by the conveyor belt ■ are transferred to the rotating shaft S.
It falls from the conveyor bell (V) at the part shown in .

Since both ends of the conveyor belt (2) are regulated by temporary guides 9, the conveyor belt (2) does not move significantly in its width direction while traveling.

When the chips 18 are dropped in this manner, as the conveyor belt v progresses in reversal, the cylindrical connecting portions 3a and 3b become a stage and connect the belt pieces l.
The cylindrical connecting portions 3a and 3b rotate relative to each other so that the central angles of the mutually overlapping portions gradually become smaller.

Therefore, the chip 18 will not be caught in the cylindrical connecting portions 3a, 3b of the belt pieces 1 that are fitted together.

Further, as shown in the figure, the cylindrical connecting part 3a with a large curl radius provided integrally with the belt piece 1 is rearward along the running direction of the conveyor belt V with respect to the small cylindrical connecting part 3b thereof. Conveyor belt V to be located at
When the belt piece 1 runs, the end of the belt piece 1 is no longer located on the protruding surface that receives the conveying pressure when the chip 18 is conveyed.

This point also contributes to preventing the chip 18 from being bitten by the cylindrical connecting portions 3a, 3b of the belt pieces 1 that are fitted together.

Although not directly related to the present invention, the rotation shaft S on the drive side of the above structure is rotated by the frictional force between the outer peripheral surface of the support shaft 5 and the inner peripheral surface of the half-split square shaft 4. It is configured to transmit force, and the transmitted rotational force can be adjusted by the adjustment spring 8. For this reason, when an excessive load is applied to the conveyor device, slip rotation occurs between the support shaft 5 and the half-split angle shaft 4, and the rotating shaft S itself has a structure that also functions as a door limiter.

Although the above embodiment shows the case where the chip 18 as the object to be transported is transported horizontally, it goes without saying that the present invention can also be carried out when the chip 18 is transported along an inclined surface. Moreover, the rotating shaft for hanging the conveyor belt is not limited to one having a regular hexagonal cross section, but may theoretically be a regular polygon.

〔Effect of the invention〕

(1) The conveyor belt according to the present invention connects a large number of belt pieces in an endless manner by rotatably fitting together cylindrical connecting parts with different curl radii that are integrally provided on the belt pieces. This eliminates the need for a large number of hinge pins, unlike conventional conveyor belts connected by hinges, and increases the strength of the connections between the belt pieces.

In addition, cylindrical connecting parts with a large curl radius are provided at both ends of the belt piece in the width direction, and when a large number of belt pieces are connected to form a conveyor belt, cylindrical connecting parts are provided on each belt piece. Since the cylindrical connecting part protrudes greatly from the belt surface, the cylindrical connecting part provided to connect the belt pieces can be used as a protruding part to transport the chips without slipping. It will fulfill its function.

Furthermore, since there is no gap in the connecting portion between the belt pieces in that direction, there is no chance of chips getting caught in the cylindrical connecting portion provided on the belt pieces during conveyance, and the belt pieces can be connected together. There is no problem in the rotation of the cylindrical connecting part.

(2) In the 1000-knob conveyor device according to the present invention, the flat plate portion of the belt piece constituting the conveyor belt gradually inverts while closely contacting the flat portion of the rotating shaft, thereby preventing the conveyor belt from being transported by the conveyor belt. The chip is dropped from the conveyor belt at the rotating shaft, and when the chip is dropped in this way, as the conveyor belt continues to reverse, it becomes a stage and connects the belt pieces. The cylindrical joints rotate relative to each other so that the central angles of the overlapping parts of the cylindrical joints gradually become smaller, so that the cylindrical joints of the belt pieces that are fitted into each other are exposed to chips. can be prevented from getting caught.

[Brief explanation of the drawing]

FIG. 1 is a side view of the chip conveyor device, FIG. 2 is a sectional view taken along line nn in FIG. , 4th
This figure is also a perspective view, and FIG. 5 is a perspective view of the belt piece 1 constituting the hair bell +-V. Explanation of the symbols of the main parts constituting the present invention is as follows. S: Rotating shaft on drive side ■: Conveyor helmet 1: Belt piece 2: Flat plate parts 3a, 3b of belt piece: Cylindrical connecting part of belt piece 4: Half-split square shaft 5: Support shaft 17: Flat part of rotating shaft 18: Chip

Claims (2)

[Claims] (1) Curled into a cylindrical shape at both ends of the flat plate part in the width direction,
Moreover, by using a belt piece in which two cylindrical connecting parts with different curl radii are located on the same side with respect to the plate surface of the flat plate part and are integrally provided, the curl radius provided on the belt piece is A conveyor belt characterized in that a large number of belt pieces are connected in an endless manner by rotatably fitting different cylindrical connecting parts to each other. (2) Curled into a cylindrical shape at both ends of the flat plate part in the width direction,
Moreover, by using a belt piece in which two cylindrical connecting parts with different curl radii are located on the same side with respect to the plate surface of the flat plate part and are integrally provided, the curl radius provided on the belt piece is A conveyor belt in which a number of belt pieces are connected in an endless manner by rotatably fitting different cylindrical connecting parts to each other, and the length of one side corresponds to the length of the flat plate part of the belt piece. A chip conveyor device comprising: a pair of rectangular rotating shafts having a regular polygonal cross section; and the conveyor belt is suspended between the pair of rectangular rotating shafts.