JP3001137B2 - Belt type take-off machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long material having a deformed cross section having a partially different thickness without reducing the take-off force.
Further, the present invention relates to a belt type take-up machine which can take out the belt without damaging it.

[0002]

2. Description of the Related Art In this type of belt type take-up machine, an upper belt conveyor and a lower belt conveyor are vertically arranged, each belt conveyor is driven, and a long material is sandwiched between the belts. Is to be picked up continuously. First, a conventional belt type take-up machine will be described with reference to FIG. FIG. 10 is a front view schematically showing the operation of the belt type take-off machine. The lower belt conveyor 41 is driven by being fixed to a fixed frame (not shown).
Is supported so as to be able to swing about its center of gravity G, and to be able to move up and down while being pressed downward with a small force that offsets its own weight by the action of the fluid pressure cylinder. The long material continuously fed from the right side of the drawing is sandwiched between the belts of the upper and lower belt conveyors 41 and 42 and is taken to the left side, and the thickness of the long material is constant. The upper belt conveyor 4
2 closely adheres to the entire surface of the long material and can be taken off without any trouble with an appropriate take-off force. However, this long material M
As shown in the drawing, when the upper belt conveyor 42 partially has an irregular cross section having a different thickness, the belt of the upper belt conveyor 42 partially contacts the bulging portion Ma of the long material M, and the upper belt conveyor 42 , Slightly swinging about its own center of gravity G, and only a part of the belt and one of the belt wheels contact the long material M, and the other part is lifted up with respect to the long material M. Becomes In this state, the contact area between the upper belt conveyor 42 and the long material M is significantly reduced, and the take-off force is reduced. In order to increase the pulling force of a long material having such an irregular cross section, the upper belt conveyor 4
If the pressing force of 2 is increased, if the long material is a resin molded product immediately after extrusion or the like, the long material itself will be damaged.

[0003]

SUMMARY OF THE INVENTION In view of the above-mentioned disadvantages of the conventional belt type take-up machine, the present invention reduces the take-up force of a long material having an irregular cross section in which the thickness is partially changed. It is an object of the present invention to take out the product without causing it to be damaged.

[0004]

In order to solve the above-mentioned problem, a means adopted by the present invention comprises an upper belt conveyor and a lower belt conveyor which are arranged one above the other. The belt is supported so as to be able to swing around its center of gravity as a fulcrum, and to be able to move up and down while being pressed downward by a small force offset by its own weight by the action of the fluid pressure cylinder. A belt type take-up machine configured to sandwich and take a long material between belts of a conveyor, wherein only the upper belt conveyor is long.
That is, the material is divided into a plurality of parts along the take-off direction of the material, and the divided upper belt conveyors are supported independently of each other as described above.

[0005]

Since the present invention the action of the Invention employs the means described above, each of the divided upper belt conveyor divided into multiple <br/> number along only the upper belt conveyor transactions direction of the long material,
Since it follows the continuous change in the thickness of the long material independently of each other, the contact area between the long material and the upper belt conveyor is larger than in the conventional machine in which the upper belt conveyor is integrated. As a result, the necessary take-up force can be secured without increasing the pressing force of each of the divided upper belt conveyors, and a long material having an irregular cross section having a partially different thickness can be taken out without any trouble. In addition, the long material is not damaged by the pressing force of the upper belt conveyor at the time of taking-up.

[0006]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples. FIG. 1 is a front view of the belt type take-off machine of the present invention, and FIG. 2 is a cross-sectional view taken along line XX of FIG. In each figure, the lower belt conveyor 1 is supported by being supported by a lower fixed frame 4. The upper belt conveyor 2 is made of long material M
Each of the divided upper belt conveyors 3, 3 is divided into a plurality of divided upper belt conveyors 3 along the take-off direction .
3 are supported on the upper fixed frame 5 by offsetting their own weights. In this example, the details of the upper belt conveyors 3, 3 divided into two will be described with reference to FIGS. 3 to 5, but first, the above-described method for coping with the case where the thickness differs greatly depending on the type of the long material M is described. The lifting mechanism K of the upper fixed frame 5 will be described. A rectangular plate-shaped base 7 is horizontally fixed on the upper part of the box-shaped fixing base 6, and the lower fixing frame 4 having a substantially trapezoidal plate shape is horizontally fixed to the base 7.

The lower fixed frame 4 has a lower belt conveyor 1
Are pivotally supported. Above the lower fixed frame 4, a horizontally long rectangular plate-shaped upper fixed frame 5 that supports the left and right divided upper belt conveyors 3, 3 is supported by a lifting mechanism K. Also, rod-shaped supports 8, 8 are erected on the base 7 on the left, right, and rear sides, and a horizontally long rectangular plate-like connecting plate 9 is connected to the upper ends of the supports 8, 8, in front of the supports 8, 8. A guide rod 1 having the same diameter and the same length as the columns 8, 8 is provided between the connecting plate 9 and the base 7.
1, 11 are fixed in parallel with the columns 8,8.
The guide rod 1 is located on the left and right of the upper fixed frame 5.
Guide pieces 12, which can be guided by inserting
12 are fixed, and nut members 15, 15 to which left and right feed screw rods 13, 14 to be described later are screwed are fixed inside the upper fixed frame 5.

The feed screw rods 13 and 14 have the same shape, but the left feed screw rod 13 does not have a projecting portion below the base 7. Same as this feed screw rod 13
4 is a threaded portion 13 which is parallel to the guide rods 11 and 11 and has an upper end portion which is screwed to the nut members 15 and 15.
a, 14a are formed, and the lower portion is stepped and has a small diameter, and this small diameter portion is rotatably supported by the base 7 so as to be rotatable. Sprocket wheels 16 and 17 are fixed to stepped portions of the feed screw rods 13 and 14 located above the base 7, respectively. A large bevel gear 18 is fixed to the lower end of a feed screw rod 14 protruding below the base 7, and further, on the right back surface of the base 7, a cross section for supporting a feed shaft 21 with a handle 19 fixed to the front. An inverted U-shaped bearing base 22 is fixed toward the large bevel gear 18, and a small bevel gear 23 that meshes with the large bevel gear 18 is fixed to a leading end of the feed shaft 21. A chain 24 is hung on each of the sprocket wheels 16 and 17. The feed screw rod 13 can be rotated by the chain 24 in synchronization with the rotation of the feed screw rod 14.

Here, when the thickness of the long material M sandwiched between the lower belt conveyor 1 and each of the divided upper belt conveyors 3 greatly changes, the handle 19 is turned and the feed shaft 21, Each nut member 15, 1 is connected via a small bevel gear 23, a large bevel gear 18, and each feed screw rod 14, 13.
5 by displacing the upper fixed frame 5 with the guide rods 11 and 1.
By moving up and down by the guide pieces 12 and 12 guided to 1, the distance between the lower belt conveyor 1 and each of the divided upper belt conveyors 3 can be freely adjusted according to the thickness of the long material M. it can.

Next, the divided upper belt conveyor 3 will be described. FIG. 3 is a front view of the divided upper belt conveyor 3, and FIG. 4 is a cross-sectional view taken along line YY of FIG.
FIG. 4 is a sectional view taken along line ZZ in FIG. 3. 6 to 9
All are front views schematically showing the operation of the belt type take-off machine of the present invention. In each of the drawings, a horizontally-long rectangular upper fixed frame 5 is moved by a base 7 on the lower fixed frame 4 side by the elevating mechanism K.
A cylinder fixing piece 25 having an inverted L-shaped cross section is fixed forward to both upper ends of the upper fixing frame 5, and a pneumatically driven fluid pressure cylinder 26 is fixed to each fixing piece 25. The cylinder rod 26a is fixed downward via a flange portion 26b. Fluid pressure cylinder 26 has a port P _1, P ₂ to the upper and lower ends, each of these ports P _1, P ₂ is connected to the meter-out flow control circuit (not shown). A conveyor support member 27 for supporting the divided upper belt conveyor 3 is connected to a lower end of the cylinder rod 26a.

A guide piece 27b having a substantially inverted L-shaped cross section and a trapezoidal groove 27a on the back is fixed to the back of the conveyor support member 27, and the divided upper belt conveyor 3 is fixed to the front thereof. Is fixed. Immediately below the cylinder fixing piece 25 and on the front surface of the upper fixing piece 5, there is a guide piece 27 b, and a sliding piece 28 having a trapezoidal cross section and slidingly fitted into the groove 27 a is fitted.
Is fixed. The sliding piece 28 can guide the conveyor support member 27 in the vertical direction.

Next, the mechanism of the main part of the divided upper belt conveyor 3 will be described. The divided upper belt conveyor 3 is provided with a drive wheel 31 and a driven wheel 32 on which a belt 29 is hung on the left and right sides, and has an inner plate 33 and an outer plate 34 for supporting the both wheels 31, 32 therebetween. . The shape of the inner plate 33 and the outer plate 34 has the same outer shape, and
9 is "brow-shaped" so that the belt thickness width is exposed to the outside in the tension state of 9. A shaft 35 that supports the driven wheel 32 is supported on the right and left side plates 33 and 34, and a plurality of small-diameter auxiliary wheels 36, 36, 36 are supported at the lower center of the long material M.
Level of the belt 29 with respect to. Inside plate 3
3, a mounting hole 33a for mounting the electric motor 37 is provided.
Is opened, and a motor 37 for driving the belt is mounted using the mounting hole 33a. The driving wheel 31 is fixed to an output shaft of the electric motor 37. The electric motor 37
Is relatively long with a speed reduction mechanism.
Is configured not to interfere.

As shown in FIG. 3, the divided upper belt conveyor 3 having the above structure has a center of gravity G in the horizontal direction.
, Is supported by the support shaft 27c of the conveyor support member 27 inserted through the inner plate 33 and the outer plate 34. Therefore,
The divided upper belt conveyor 3 can swing about the center of gravity G as a fulcrum. The divided upper belt conveyor 3 is supported movably in the vertical direction by a guide piece 27b of the conveyor support member 27 and a slide piece 28 fixed to the upper fixed frame 5. Further, each port P of the hydraulic cylinder 26
_1, the P ₂ is meter-out flow control circuit is connected,
Always applying a back pressure to the lower port P _2, by adjusting the back pressure, the support shaft 27 of the conveyor support member 27
The weight of the divided upper belt conveyor 3 is offset through c. Also, in addition to adjusting the back pressure applied to the port P ₂ side according to the type of elongated material M, a small pressing force to the elongated material M is in the use state.

Next, the operation of the belt type take-up machine of the present invention will be described with reference to FIGS. In FIG. 6, the long material M is pulled to the left by driving the lower belt conveyor 1 and each of the divided upper belt conveyors 3, 3 divided into two units. When the bulging portion Ma arrives below the driving wheel 31, the driving wheel 31 of the right divided upper belt conveyor 3 swings up as shown by the arrow with the support shaft 27c as a fulcrum, and lifts up.
Although the take-off force at this portion is reduced, the belt 29 of the left divided upper belt conveyor 3 contacts the flat portion of the long material M by the distance between the centers of the driving wheel 31 and the driven wheel 32, so that the entire length is reduced. The required take-off force is secured. Further, the pressing force of the right split upper belt conveyor 3 against the bulging portion Ma by the drive wheel 31 is necessary for securing the take-up force because the weight of the split upper belt conveyor 3 is offset by the fluid pressure cylinder 26. Since only a small pressing force is applied, the long material M is not damaged.

Next, in FIG. 7, when a long bulging portion Ma straddling between the driving vehicle 31 and the driven vehicle 32 arrives below the right divided upper belt conveyor 3, when the right divided upper The entire belt conveyor 3 rises and pushes up the cylinder rod 26a. In this case, each of the belts 29 of the left and right divided upper belt conveyors 3 is a long material M
Of the drive wheel 31 and the driven wheel 32 are in contact with the flat portion, so that there is no reduction in the take-off force. Furthermore, a slight force is applied to the back pressure applied to the port P ₂ of the right side of the split upper belt conveyor 3 of the fluid pressure cylinder 26, the port P ₁
More fluid is returned to the meter-out fluid control circuit,
A large pressing force is not applied to the bulging portion Ma.

Next, in FIG. 8, when the bulging portion Ma arrives below the driven vehicle 32 of the left divided upper belt conveyor 3, when the driven vehicle 3 of the divided upper belt conveyor 3
2 swings up as shown by the arrow with the support shaft 27c as a fulcrum, and the take-up force at this portion is reduced. However, the belt 29 of the right upper belt conveyor 3 is a flat portion of the long material M. As a result, the contact force of the driving wheel 31 and the driven wheel 32 is brought into contact with each other, so that the overall pulling force is ensured. Further, the pressing force of the driven wheel 32 against the bulging portion Ma of the left divided upper belt conveyor 3 is small because the weight of the left divided upper belt conveyor 3 is offset by the fluid pressure cylinder 26, Therefore, the long material M is not damaged.

Next, referring to FIG. 9, the bulge T in FIG.
Is further taken to the left and arrives at the portion immediately before the driving wheel 31 of the left divided upper belt conveyor 3, the driving wheel 31 swings around the support shaft 27 c as a fulcrum as shown by an arrow. At the same time, the driven wheel 32 also slightly lifts, and slightly pushes up the cylinder rod 26a. For this reason, although the take-off force in this portion is slightly reduced, the belt 29 of the right upper divided belt conveyor 3 is
Is brought into contact with the flat portion by the length of the center between the driving wheel 31 and the driven wheel 32, thereby ensuring the overall take-off force. In this case, slightly force is applied to the back pressure applied to the port P ₂ of the left side of the split upper belt conveyor 3 of the fluid pressure cylinder 26, since the fluid from the port P ₁ is returned to the fluid control circuit, see Rise No large pressing force is applied to the portion Ma.

Although the above embodiment is an example in which the upper belt conveyor 2 is divided into two units, it is possible to divide the upper belt conveyor 2 into three units or more units. The followability of the upper belt conveyor to long materials having different thicknesses is further improved.

[0019]

According to the present invention, there is provided a belt type take-up machine comprising an upper belt conveyor and a lower belt conveyor arranged one above the other.
The upper belt conveyor is divided into a plurality of parts along the material take-up direction, and each of the divided upper belt conveyors can swing about the center of gravity as a fulcrum. Since they are supported independently of each other so as to be able to move in the vertical direction while being pressed, each divided upper belt conveyor follows a continuous change in the thickness of the long material independently of each other. For this reason, compared with the conventional machine in which the upper belt conveyor is integrated, the contact area between the long material and the upper belt conveyor can be increased, without increasing the pressing force of each divided upper belt conveyor. The required take-up force can be secured, and long materials with irregular cross-sections with different thicknesses can be taken out without any trouble.At the same time, the long materials are damaged by the pressing force of the upper belt conveyor during take-up. Not even.

[Brief description of the drawings]

FIG. 1 is a front view of a belt type take-off machine of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a front view of a divided upper belt conveyor 3 constituting the belt type take-up machine of the present invention.

FIG. 4 is a sectional view taken along line YY of FIG. 3;

FIG. 5 is a sectional view taken along line ZZ of FIG. 3;

FIG. 6 is a schematic front view of the belt type take-off machine showing a state in which a bulging portion Ma of the long material M has arrived below a driving wheel 31 of the right divided upper belt conveyor 3.

FIG. 7 is a schematic front view of a belt type take-off machine showing a state in which a long bulging portion Ma of a long material M has arrived between a driving wheel 31 and a driven wheel 32 of the right upper belt conveyor 3; .

FIG. 8 is a schematic front view of the belt type take-up machine showing a state in which a bulging portion Ma of the long material M has arrived below a driven vehicle 32 of the left upper belt conveyor 3;

FIG. 9 is a schematic front view of a belt type take-off machine showing a state in which a bulging portion Ma of a long material M has arrived below a driving wheel 31 and a driven wheel 32 of the left upper belt conveyor 3;

FIG. 10 is a front view schematically showing the operation of a conventional belt type take-off machine.

[Explanation of symbols]

 G: Center of gravity of divided upper belt conveyor M: Long material Ma: Inflated portion of long material 1: Lower belt conveyor 2: Upper belt conveyor 3: Split upper belt conveyor 4: Lower fixed frame 5: Upper fixed frame 26: fluid pressure cylinder 27: conveyor support member 27c: support shaft of the conveyor support member 29: belt

──────────────────────────────────────────────────の Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 15/14-15/16 B29C 47/08 B29C 47/34 B28B 3/20 H01B 13/00

Claims (1)

(57) [Claims] 1. An upper belt conveyor comprising: an upper belt conveyor and a lower belt conveyor arranged one above the other, the upper belt conveyor being capable of swinging about its center of gravity as a fulcrum, A belt type take-up machine that is supported movably in the vertical direction while being pressed downward with a small force offset by its own weight by the action, and that pulls a long material between the belts of the belt conveyors. Wherein only the upper belt conveyor is in the take-up direction of the long material.
Is divided into a plurality me, the divided upper belt conveyor,
A belt type take-up machine, which is supported independently of each other as described above.