JPH07315540A - Sheet carrying device - Google Patents

Abstract

PURPOSE:To provide a device for efficiently carrying sheets where a certain interval is secured one by one. CONSTITUTION:A carrying device 10 consists of a carrying part 203a on the forward side which is driven by a driving part, and where the degree of tension is adjusted by a tension adjusting part and a carrying part 203b on the return side. The carrying parts 203a, 203b consist of four sets of endless chains 240a, 240b, 240c, 240d and four sets of endless coil springs 241, and tour sets of coil springs 241 which are respectively mounted on four sets of endless chains 240a, 240b, 240c, 240d are arranged at an almost equal interval. A sheet 50 is loaded leaning between the helical springs of the respective coil springs 241 arranged in four rows of the carrying part 203a on the forward side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying device for thin plates, and more particularly to a conveying device for conveying iron plate materials separated one by one.

[0002]

2. Description of the Related Art Conventionally, in order to vulcanize or dry a thin plate material which has been preliminarily dried after being coated with rubber, an adhesive or the like, a spare is separately provided to one entrance of a furnace equipped with an entrance and exit. There is a conveying device that is integrated with a furnace that inserts a dried thin plate material and takes out the thin plate material after vulcanization or drying from the other outlet. In such a transporting device, the thin plate materials laid on the transport belt are sequentially arranged, and the thin plate material preliminarily dried is passed through the furnace at a slow speed for a certain period of time in order to vulcanize or dry the thin plate material.

[0003]

However, in such a conventional conveying apparatus, since the thin plate materials are laid down on the conveyor belt and arranged side by side, the occupied area required for conveying one thin plate material is a thin plate material. Since it corresponds to the flat area for one sheet,
There is a problem that the number of thin plate materials that can be vulcanized or dried is small with respect to the length of the furnace. Further, since the thin plate materials are laid side by side on the conveyor belt, there is a problem that the vulcanization speed or the drying speed is different between the front surface and the back surface of the thin plate material, and the vulcanized state or the dried state varies.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a thin plate transporting device that efficiently transports thin plates one by one with a fixed interval.

[0005]

According to a first aspect of the present invention, there is provided a thin plate carrier according to the present invention, which has a driving source, a loop-shaped conveyor driven by the driving source, and one end. A fixture attached to the conveyor,
A loop-shaped coil spring attached to the other end of the attachment is provided, and a thin plate-shaped object can be supported between adjacent coil wires of the coil spring.

According to a second aspect of the present invention, there is provided a thin plate transport apparatus according to the first aspect of the invention.
The conveyor may be an endless chain. A thin plate carrier according to a third aspect of the present invention is the thin plate carrier according to the first aspect, wherein the conveyor is an endless belt.

[0007]

According to the thin plate transporting apparatus of the present invention, since a thin plate-shaped transported object is erected and conveyed between adjacent coil wires of the coil spring, the transported objects are laid side by side and transported. In comparison, there is an effect that the transport efficiency can be improved. Further, according to the thin plate carrying device of the present invention, since the thin plate-shaped object to be conveyed is erected between the adjacent coil wires of the coil spring in the tensioned state, the coil should be lightly touched on both sides of the object. Since the lines come into contact with each other to support the transported object, there is an effect that the transported object is not easily scratched, and further, a thin plate-shaped transported object having low rigidity can be stably held.

According to the thin plate carrier of the present invention,
Since a thin plate-shaped object to be conveyed can be leaned between arbitrary adjacent coil wires wound in a spiral shape of a coil spring, it is possible to mount even an automatic mounting device having low positioning accuracy. According to the thin plate carrier of the present invention,
Since it is a simple structure consisting of a conveyor and a coil spring, there is an effect that the thin plate carrier of the present invention can be configured at low cost,
Furthermore, it has the effect of facilitating maintenance management.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. An embodiment in which the thin plate carrier of the present invention is applied to a vulcanizing furnace is shown in FIGS. As shown in FIG.
An apparatus 0 conveys the thin plate material 50 preliminarily dried after the rubber coating in the vulcanizing furnace 100, so that the thin plate material 50 is conveyed at a slow speed.

Here, the vulcanization is performed by adding a sulfur or other vulcanizing agent to the raw material rubber, or by applying an appropriate treatment such as irradiation with radiation, with or without adding a vulcanizing agent such as sulfur. By making a bond, a change in which plastic flow is reduced and elasticity and swelling are reduced over a wide temperature range. Further, the vulcanization furnace means a furnace for maintaining a temperature suitable for vulcanizing rubber or the like or for performing other suitable processing.

The vulcanization furnace 100 includes a furnace body 110 and a combustion device 1.
20, the hot air circulation fan 130, the intake duct 140, the exhaust duct 150, and the transfer device 10. As shown in FIG. 1, the furnace body 110 is formed in a horizontally long hollow prismatic shape having a rectangular cross section. This furnace body 110
Has a height of 1.2 m and a width of 1.2 m, for example, and the furnace body 1
The length of 10 is 18 m, for example. Furnace body 11 shown in FIG.
0 has a carry-in port 111 formed on the left side of the furnace body 11
An outlet 112 is formed on the right side of 0. Carry-out exit 1
Twelve square inspection ports 113 are formed on the right side wall of the furnace body 110 when viewed from the direction of arrow IV of 12. A connection port 140 connected to the intake duct 140 is provided on the left side wall of the furnace body 110 when viewed from the direction of the arrow IV of the carry-out port 112.
a is formed at three places. A combustion device 120 and a hot-air circulation fan 130 are attached above the substantially central portion of the furnace body 110. The air discharged from the furnace body 110 to the combustion device 120 via the exhaust duct 150 is transferred to the combustion device 120.
After being heated by the furnace body 110, the heated hot air is heated by the hot air circulation fan 130 via the intake duct 140.
I am sending it inside. As a result, the temperature inside the furnace body 110 is maintained at the vulcanization temperature of 200 ± 5 ° C.

As shown in FIG. 1, inside the furnace body 110, an intake part 141 connected to the intake duct 140 and an exhaust part 151 connected to the exhaust duct 150 are provided. Intake part 141 provided in the lower part inside the furnace body 110
A discharge port 142 is formed in the upper part of the discharge port 142, and the discharge port 142 discharges hot air from the hot air circulation fan 130 connected to the intake duct 140 into the furnace body 110. The discharged hot air is flowing in the direction of arrow 149 shown in FIG.
Further, an intake port 152 is formed in the lower part of the exhaust part 151 arranged in the upper part of the inside of the furnace body 110.
By 52, the air flowing in the direction of arrow 159 shown in FIG. 1 in the furnace body 110 is sucked, and the sucked air is sent to the combustion device 120 connected to the exhaust duct 150. Furnace body 11
Between the discharge port 142 and the suction port 152 on the inner side of 0, there is provided a forward transfer section 203a that moves from the carry-in port 111 to the carry-out port 112, and below the outside of the furnace body 110. A return-side transport unit 203b that moves from the carry-out port 112 toward the carry-in port 111 is provided.

As shown in FIGS. 2 and 4, the conveying device 1
Reference numeral 0 is composed of a drive unit 210, a tension adjusting unit 220, a forward transport unit 203a, and a return transport unit 203b. Drive unit 21 provided near the exit 112
0 is composed of a drive motor 211, gears 212a and 212b, and sprockets 213a, 213b, and 214. The drive motor 21 is driven by this drive motor 211.
The gear 212a attached to the first shaft rotates, and the rotational movement of the gear 212a is transmitted by the drive belt to rotate the gear 212b and the sprocket 213a. Further, the shaft 21 attached to the sprocket 213a
5, the sprocket 213b attached to the shaft 215 is rotated, and the chains 240a, 240b, 240c, 24 hung on the sprocket 213b are rotated.
By driving 0d, the transport units 203a and 203b
Are driving. The transport unit 203 by this drive unit 210
The moving speed of a and 203b is 0.3 m / min. Sprocket 21 provided below sprocket 213
4 is a chain 240a, 2 of the transport units 203a, 203b
The tension of 40b, 240c and 240d is automatically adjusted.

As shown in FIG. 2, the tension adjusting portion 220 provided near the carry-in port 111 is composed of a screw type tension adjusting device 221 and sprockets 223 and 224. With the screw type tension adjuster 221 and the sprocket 224, the transport units 203a and 203b are provided.
The tension of the chains 240a, 240b, 240c, and 240d can be freely changed.

As shown in FIGS. 1, 2, 4 and 5, the transport units 203a and 203b are composed of four sets of endless chains 240a, 240b, 240c, 240d and 4.
It is composed of a pair of endless coil springs 241. As shown in FIG. 1, four sets of coil springs 241 are arranged at substantially equal intervals, and four sets of chains 240a,
240b, 240c and 240d are chain 240b and chain 240c so that the coil springs 241 are evenly spaced.
Are set to be wider than the intervals between the chains 240a and 240b and between the chains 240c and 240d. Chains 240a, 240
Each of b, 240c, 240d and the coil spring 241 is formed in an annular shape with its start end connected to its end. The chains 240a, 240b, 240c, 240d are provided with sprockets 213 provided near the carry-out exit 112.
b, 214. When the length of the furnace body 110 is, for example, 18 m, the chains 240a, 240b, 2
The length of each of 40c and 240d is, for example, 21.5 m on the outward path and the return path, and the total length is 43 m.

The shape of the thin plate material 50 to be conveyed is, for example, 50 to
100 mm × 300-600 mm rectangular shape with a thickness of 0.
When the rectangular spring 1 to 0.5 mm is conveyed so that its side is in contact with four sets of coil springs 241, the coil spring 2
41 is preferably a tension coil spring formed by tightly winding a stainless wire made of SUS304, for example, having a wire diameter of 1.5 mm into a spiral shape having an outer diameter of 50 mm. The distance between the stainless wire wound in a spiral shape on the chain 240a and the stainless wire is, for example, 5
The coil spring pulled so that it becomes 10 mm to 11
One coil spring 241 is formed by this permanent attachment. In this case, the length of the coil spring pulled is approximately 4 m. As shown in FIG. 3, the chain 24
0a and the coil spring 241 are attached to the chain 240a.
L-shaped conveyor attachments 242 mounted at 100 mm intervals are used. A lower end portion of the coil spring 241 sandwiched between the pressing fitting 243 and the conveyor attachment 242 is fixed to an upper portion of the conveyor attachment 242 by a screw 245, two spring washers 244, and a nut 246. The coil spring 241 is similarly attached to 240b, 240c, and 240d other than the chain 240a.
The intervals between the stainless wire and the stainless wire wound in the spiral shape of the coil spring 241 attached to each of the chains 240a, 240b, 240c and 240d need not be the same for each of the chains 240a, 240b, 240c and 240d. Absent.

As shown in FIG. 2, the conveying device 10 includes a vulcanization furnace 10 for a thin plate material 50 preliminarily dried after rubber coating.
The thin plate material 50 is conveyed at a speed of 0.3 m / min so as to be vulcanized by 0. Since the moving speed of the thin plate material 50 by the transfer device 10 is slower than the moving speed of the thin plate material 50 of 3.3 m / min in the preliminary drying step, the length of the vulcanization furnace 100 is shortened. From the left side of the furnace body 110 shown in FIG. At this time, the thin plate members 50 are sequentially mounted by an automatic mounting device (not shown) so as to lean between the spirally wound lines of the coil springs 241 arranged in four rows in the transport section 203a on the outward path. The mounting position of the thin plate member 50 is the coil spring 24.
It is optional as long as it is between the spirally wound wires, and the minimum mounting interval is the distance between the spirally wound stainless wires.

The mounted thin plate material 50 is inserted into the vulcanization furnace 100 through the carry-in port 111, and after about 60 minutes, the thin plate material 50 is taken out from the carry-out port 112 on the right side of the furnace body 110 shown in FIG. The vulcanized thin plate material 50 that has been taken out is sequentially collected by a collecting device (not shown), and the process proceeds to the next step. According to the present embodiment, the thin plate material 50 is erected on the coil spring 241 to be conveyed, so that the conveying efficiency is improved as compared with the case where the thin plate materials 50 are laid side by side and conveyed, so that the vulcanization furnace 1
This has the effect of shortening the length of 00. In addition, since the length of the vulcanization furnace 100 can be shortened if the number of the sheet materials 50 that can be simultaneously conveyed is the same, the thermal efficiency of the furnace body 110 is improved, and the quality of the sheet material 50 after vulcanization can be easily ensured. There is an effect.

Further, according to the present embodiment, the coil spring 24
A thin plate member 50 is provided between adjacent coil wires wound in a spiral shape.
Since the thin plate member 50 is conveyed while leaning against it, the coil spring 241 contacts the thin plate member 50 so that the thin plate member 50 is lightly touched, and the thin plate member 50 is supported. Further, according to the present embodiment, since the thin plate member 50 can be leaned between arbitrary lines of the coil spring 241 wound in a spiral shape,
There is an effect that even an automatic mounting device with low positioning accuracy can be mounted.

Although the carrying device 10 applied to the vulcanizing furnace 100 has been described in the present embodiment, the carrying device of the present invention is not limited to application to the vulcanizing furnace, and may be, for example, a thermosetting resin. It is also applicable to a furnace for curing the adhesive, a furnace for drying the adhesive, and a transfer device that moves in other furnaces, and also for a transfer device for an assembly line for products and the like. .

Further, although the coil spring 241 is attached to the chain 240 in this embodiment, the present invention is not limited to the chain as long as the coil spring is movable, and the object to which the coil spring is attached is, for example, a belt. It may be a transfer device. Further, in the present embodiment, four chains 240 and four coil springs 241 are used, respectively, but in the present invention, for example, two to five or six in accordance with the width of the transported object such as a thin plate material.
More than a book is acceptable.

Further, in this embodiment, the material of the coil spring 241 is SUS304, the outer diameter is 50 mm, and the wire diameter is 1.5 mm.
However, the present invention is not limited to this, and the material, the outer diameter, and the wire diameter of the coil spring corresponding to the area and weight of an arbitrary thin plate material or the like may be selected.

[Brief description of drawings]

1 shows a vulcanizing furnace and a conveying device according to an embodiment of the present invention, and is an enlarged cross-sectional view taken along line I-I shown in FIG.

FIG. 2 is an overall view of a vulcanization furnace and a transfer device according to an embodiment of the present invention.

FIG. 3 is an enlarged view of a main part according to the embodiment of the present invention.

FIG. 4 is a view in the direction of the arrow IV shown in FIG.

5 is a view from the direction of the arrow V shown in FIG.

[Explanation of symbols]

10 carrier device 50 thin plate material (material to be transported) 100 vulcanization furnace 110 furnace body 120 combustion device 130 hot air circulation fan 140 intake duct 150 exhaust duct 211 drive motor (drive source) 240a, 240b, 240c, 240d chain (conveyor) 241 Coil spring 242 Conveyor attachment (mounting tool)

Claims (3)

[Claims] 1. A drive source, a loop-shaped conveyor driven by the drive source, an attachment having one end attached to the conveyor, and a loop-shaped coil spring attached to the other end of the attachment. A thin plate conveying device capable of supporting a thin plate-shaped object to be conveyed between adjacent coil wires of the coil spring. 2. The thin plate carrier according to claim 1, wherein the conveyor is an endless chain. 3. The sheet conveying apparatus according to claim 1, wherein the conveyor is an endless belt.