JPH0826553A - Cloth conveyer - Google Patents

Abstract

PURPOSE:To convey a cloth by holding a belt always in a flat extended condition, by absorbing elongation in a roller axial center direction of the belt due to receiving heat, when operated, and due to aged use. CONSTITUTION:In a cloth conveyer, since each tapered roller part 3, 3, respectively formed in both end parts of a roller main unit 2A of a conveying roller 2a, is formed to increase a diameter in a roller axial center outward direction, in a peripheral surface of each tapered roller part 3, 3, a peripheral speed is increased in accordance with going to the roller axial center outside. Consequently in both edge parts of a mesh belt mounted on each tapered roller part 3, 3, by applying tension (shown by arrow mark F) in a front outward direction due to a peripheral speed difference between inner/outer sides, the belt is pulled in an outward direction respectively opposed to each other. Accordingly, the mesh belt 5A, even when generated elongation due to heat or the like during running, is held in a condition that the belt is extended over a total unit in the roller axial center direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a cloth transporting device provided with a transporting roller for carrying and running a cloth transporting belt, and more particularly, to the heat applied during operation and the belt roll shaft due to use over time. The present invention relates to a cloth conveying device that can absorb a stretch in a direction of a heart and convey a cloth without any trouble.

[0002]

2. Description of the Related Art Conventionally, a cloth conveying device of this type is shown in FIG. In the figure, in the cloth conveying device, for example, an endless mesh belt 5 made of a heat-resistant synthetic resin is wound between two conveying rolls 2c arranged side by side. This cloth conveying device is configured such that the mesh belt 5 is rotated by the rotation of the conveying roll 2c.
And the cloth is placed on the mesh belt 5 and conveyed.

At both edges of the back surface of the mesh belt 5, V
A belt 6b is attached, and a V groove 4c that fits with the V belt 6b is formed in an annular shape on the roll main body 2A of the transport roll 2c at a position facing the V belt 6b. The mesh belt 5 is formed by the V belt 6b and the V groove 4c.
Is configured to position the traveling position of. Such a cloth conveying apparatus is provided in a cloth heat treatment apparatus for applying heat treatment such as drying to the cloth.

[0004]

Generally, the mesh belt 5 and the conveying roll 2c change in size due to a temperature difference. For example, at low temperature before starting the fabric heat treatment device,
The mesh belt 5 and the transport roll 2c are in a state of being stretched with a specified dimension in the axial direction of the roll. On the other hand, when exposed to a high temperature during the drying operation, the mesh belt 5 stretched at this time
Since both edge portions are positioned, the mesh belt 5A (shown by a chain double-dashed line) is swollen at the central portion in the roll axial direction.

As a result, between the transport rolls 2c, a slack is generated at the center of the mesh belt 5A in the roll axial direction. Therefore, according to the conventional cloth conveying device, the cloth cannot be conveyed in a flat state, which may cause a defect in the cloth after the conveyance.

The present invention has been made in view of the above-mentioned conventional problems, and absorbs heat received during operation and elongation in the roll axial direction of the belt due to use over time, so that the belt is always flat. An object of the present invention is to provide a fabric transporting device that can transport a fabric while keeping it in a stretched state.

[0007]

In order to achieve the above object, a cloth conveying apparatus according to the present invention comprises a belt on which a cloth is placed and conveyed, and a conveyance roll on which the belt is placed to travel. In addition to the provision, both ends of the transport roll,
The taper roll portions each having a large diameter outwardly of the roll axis are formed.

In the above structure, the first rolls are provided near both edges of the belt facing the respective taper rolls.
Provided on the peripheral surface of each taper roll portion,
The second engagement portion slidably engages with the first engagement portion and regulates the traveling position of the belt in the roll axis direction.

[0009]

In the cloth conveying apparatus according to the present invention, since the taper roll portions at both ends of the conveyance roll are formed so as to have a large diameter toward the outside of the roll axis, the peripheral surface of each taper roll portion is The peripheral speed is faster toward the outside of the roll axis. Therefore, both edge portions of the belt placed on the respective taper roll portions are pulled outward in the opposite directions because tension is applied outward in the front direction due to the peripheral speed difference. Therefore,
During running of the belt, the belt is held in a stretched state over the entire axial direction of the roll, even if a difference in thermal expansion between the transfer roll and the belt due to heat or the like or elongation due to aging occurs. .

Further, the above-mentioned function regulates the traveling position of the belt by slidably engaging the first engaging portion and the second engaging portion so that the belt does not deviate from traveling. Even the configuration is applied.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the accompanying drawings. However, the same components as those of the conventional cloth conveying device shown in FIG. 5 are designated by the same reference numerals and detailed description thereof will be omitted, and the components having the same function will be denoted by the same reference numerals. Use with a subscript or a different subscript.

FIG. 1 is a schematic side view showing a cloth heat treatment apparatus having a cloth conveying apparatus according to an embodiment of the present invention. In the figure, the cloth heat treatment apparatus 1 is formed of a plate-shaped heat insulating material in a box shape, and has a casing 5 having a cloth inlet 10 at an upper portion and a cloth outlet 11 at a lower portion, and a plurality of casings 5 vertically arranged in the casing 5. The fabric conveying device 2 of the present embodiment, which is provided as a base
2 and so on. Each of the cloth transporting devices 2 is composed of an endless mesh belt 5 made of heat-resistant synthetic resin on which the cloth 8 is placed and transported, and a pair of mesh belts 5 which are pivotally supported at the front and rear portions of the casing 9, respectively. And the transport roll 2a.

Further, in the casing 5, a cloth conveying space is formed between the cloth conveying devices 2, 2, ... Hot air jet nozzles 7, 7, ... for jetting hot air over the mesh belts 5 of the cloth transporting devices 2, 2, ... are provided in parallel above and below each cloth carrying space. There is. In addition, the heating machine 1
2 is arranged in a ventilation path (not shown) between the blower 13 and the hot air jet nozzles 7, 7, ..., And heats the air from the blower 13 to generate hot air. ，
Is supplied to ...

FIG. 2 is a partially cutaway front view of the transport roll of the fabric transport device. As shown in the drawing, in particular, taper roll portions 3 each having a large diameter outwardly of the roll axis are formed at both ends of the roll body 2A constituting the transport roll 2a. Incidentally, when the diameter of the roll body 2A is 150 mmφ, the taper inclination of the taper roll portion 3 is, for example, 3 /
It is preferable to set it to about 100 in order not to give a large warp to the mesh belt 5 at the sliding contact position with the transport roll 2a and to appropriately give an outward tension described later.

Further, V-belt-shaped protrusions 6 (an example of a first engaging portion) are attached near both edges of the back surface of the mesh belt 5 facing the taper roll portions 3 and 3, respectively. ing. On the other hand, on the peripheral surface of each of the taper roll portions 3 and 3, a peripheral groove portion 4 (an example of a second engaging portion) is formed in an annular shape over the entire circumference. The ridges 6 of the mesh belt 5 are formed in the circumferential groove 4
It is loosely fitted inside and is slidably engaged with each other to regulate the running position of the mesh belt 5 in the roll axis direction. A running positioning mechanism 14 for the mesh belt 5 is constituted by the protrusions 6 and the circumferential groove portion 4. In this case, before the activation of the fabric heat treatment apparatus 1, in the mesh belt 5, the protrusions 6 and 6 have the circumferential groove portions 4 respectively.
It is set in advance so as to be slidably engaged with the innermost side wall of No. 4 and extended in the axial direction of the roll (see FIG. 2).

Next, the operation of the fabric conveying device 2 and the fabric heat treatment device 1 of this embodiment will be described below with reference to FIG. The wet cloth 8 that has been processed in the previous step and continuously sent is carried into the casing 9 from the cloth inlet 10 of the cloth heat treatment apparatus 1, and the cloth conveying apparatus 2 on the upper side.
It is supplied to the cloth transport space between the two. After that, the fabric 8 is
The sheets are sequentially folded back and continuously fed to the lower fabric conveying devices 2, 2, .... Meanwhile, the fabric 8 is transported while being dried by the hot air jetted from the upper and lower hot air jet nozzles 7, 7 ... In the respective fabric transport spaces through the mesh belt 5. The fabric 18 thus dried is
It is carried out of the casing 9 through the fabric outlet 11.

At this time, the mesh belt 5 and the roll main body 2A of each cloth conveying device 2 receive the hot air from the hot air jet nozzle 7 and expand due to thermal expansion. Further, the mesh belt 5 also stretches due to a change with time. On the other hand, at both edges of the mesh belt 5, which are in contact with the taper roll portion 3, the inner peripheral speed (represented by the length of arrow Ri) of the taper roll portion 3 and the outer side Peripheral speed (arrow R
(represented by the length of o)), the outward tension indicated by the arrow F is applied to each.

As a result, each of the ridges 6 and 6 is attached to each of the circumferential groove portions 4,
The mesh belts 5A stretched by heat are stretched over the entire axial direction of the roll (see FIG. 3), while the bottom surfaces of the rolls 4 move outward. That is, the dimension of the bottom surface of each of the circumferential groove portions 4 and 4 in the roll axis direction is set to have a margin that does not hinder the movement of the protrusions 6 and 6 due to the elongation of the mesh belt 5. The function of absorbing the elongation of the belt is not limited to the elongation due to heat, but also has an effect on the elongation due to aged use or the like. Therefore, according to the fabric transporting device 2, even under the condition that the mesh belt 5 is stretched, the stretch at that time can be absorbed and the fabric 8 can be always transported while being kept flat.

In the above embodiment, the conveyor roll 2a is provided with the protrusion 6 as the first engaging portion on the belt side and the peripheral groove portion 4 as the second engaging portion on the taper roll portion side in the present invention. However, the present invention is not limited to this, and as shown in FIG.
Inner circumferential groove portions 4 formed on the back surface of each edge band portion 4b are provided with edge band portions 4b having a U-shaped cross section on both edges of the mesh belt.
A conveyance roll 2b is used in which a is a first engaging portion, and a ridge 6a protruding from a portion of the peripheral surface of the taper roll portion 3 facing the inner circumferential groove portion 4a is a second engaging portion. You can also

Further, in the cloth conveying apparatus of the above-mentioned embodiment, the case where the endless mesh belt 5 is wound around the conveying rolls arranged in parallel is shown, but, for example, in the conveying rolls arranged in parallel of three or more. It is also applicable when winding the mesh belt 5. The belt is not limited to the mesh belt, and may be a linear belt instead of an endless belt. Further, the traveling direction of the belt is not limited to being substantially horizontal in a side view, and may be, for example, an inclined direction.

Further, the application of the cloth conveying apparatus of the present invention is not limited to the above-mentioned cloth heat treatment apparatus, and a belt for mounting and conveying the cloth and a conveying for mounting and running the belt. It is needless to say that the present invention can be applied to other devices as long as it has a structure for carrying a cloth including a roll.

[0022]

As described above, according to the cloth transporting apparatus of the present invention, both edge portions of the belt placed on each taper roll portion having a large outward diameter have a peripheral speed in the roll axial direction. Because the pulling force is applied to the opposite direction by the outward tension caused by the difference, the heat received during operation and the elongation in the roll axial direction of the belt due to the use over time are absorbed, so the belt is always kept in a flat stretched state. be able to. As a result, the cloth can be conveyed without any problem.

[Brief description of drawings]

FIG. 1 is a schematic side view showing a fabric heat treatment apparatus including a fabric transport device according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of a transport roll of the fabric transport device.

FIG. 3 is a state explanatory view showing a traveling mode of a mesh belt by a transport roll.

FIG. 4 is a partially cutaway front view of a transport roll according to another example of the present invention.

FIG. 5 is a partially cutaway front view of a conventional transport roll.

[Explanation of symbols]

 2 Fabric Conveying Devices 2a, 2b Conveying Rolls 2A Roll Main Body 3 Tapered Roll Part 4 Circumferential Groove Part (Second Engagement Part) 4a Inner Circumferential Groove Part (First Engagement Part) 4b Edge Band 5,5A Mesh Belt (Belt) ) 6 ridge (first engaging portion) 6a ridge (second engaging portion) 8 fabric F, Ri, Ro arrow

Claims (2)

[Claims] 1. A belt for mounting and transporting a cloth, and a transport roll for mounting and running the belt, the both ends of the transport roll having a large diameter outwardly of the roll axis. And a taper roll portion that is formed on the cloth conveying device. 2. A first engaging portion provided in the vicinity of both edge portions of the belt facing each taper roll portion, and a first engaging portion provided on the peripheral surface of each taper roll portion. The cloth conveying device according to claim 1, further comprising a second engaging portion that slidably engages to regulate a traveling position of the belt in the roll axis direction.