JPH07148760A - Drum type rolling and cooling apparatus - Google Patents

Abstract

PURPOSE:To provide a cooling apparatus capable of performing the enhancement of material cooling efficiency, the enhancement of maintenance properties, and the enhancement of material quality using a plurality of press sollers in a method pressing a molten material to a cooling drum to cool the same. CONSTITUTION:In a drum type rolling and cooling apparatus consisting of a cooling drum 7 cooled from the interior thereof by a cooling medium 4, the rolling roll 2 provided on the cooling drum 7 and pressing a material 1 to the drum 7 to roll the same and a plurality of press rollers 3' transferring the material 1 while pressing the same to the cooling drum 7, the material 1 is charged on the cooling drum 7 as shown by an arrow and rolled between the rolling roller 2 and the drum 7 to be cooled. Next, the material 1 on the cooling drum 7 is fed to a plurality of the press rollers 3' arranged on the outer periphery of the cooling drum 7 to be pressed to the cooling drum 7 by the press rollers 3' and fed to a lower discharge part while cooled to be discharged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type rolling / cooling device, and more particularly, to a device for cooling a material such as a thermoplastic synthetic resin rolled by a rolling roller by pressing it against a cooling drum. The present invention relates to a drum type rolling and cooling device capable of improving the quality of a cooling material.

[0002]

2. Description of the Related Art Conventional rolling and cooling devices for thermoplastic synthetic resins are roughly classified into the following. In all the drawings for explaining the conventional rolling cooling device, those having the same function are designated by the same reference numeral, and the repeated description thereof will be omitted.

1) The single belt type rolling and cooling device is
As shown in FIG. 2, only one cooling belt 6 is provided, and the material 1 is rolled by the rolling roller 2 and then pressed by the pressing roller 3 onto the belt to cool it. The structure is simple, and The state of the material during cooling can be seen, and therefore, there is an advantage that foreign matter on the way can be easily found and removed.

However, the single-belt type rolling / cooling device has a drawback that the installation area is very large because the belt, which is the cooling unit, is arranged horizontally or diagonally.
Further, there is also a drawback that the cooling efficiency is poor due to the single-sided cooling system (see Japanese Patent Laid-Open No. 1-176714). In addition,
In FIG. 2, 4 is a refrigerant, and 5 is a cooling belt drive wheel.

2) As shown in FIG. 3, the double belt type rolling and cooling device has two cooling belts 6 on the upper and lower sides, and after rolling the material 1 with the rolling rollers 2, the upper belt 6'and the lower belt 6 ". Since it is sandwiched between and cooled, it has a cooling capacity that is nearly double that of a single-belt type rolling and cooling device, and also has the advantage that the deformation of the material can be suppressed and the cooling efficiency is good.

However, the double-belt type rolling cooling device is also
Since the belt, which is the cooling unit, is arranged horizontally or diagonally, there is a drawback that the installation area becomes very large (see Japanese Patent Laid-Open No. 4-122623).

3) As shown in FIG. 4, the drum type rolling and cooling apparatus has a cooling drum 7 and a belt 9 for pressing the material 1 against the cooling drum 7, and after rolling the material with a rolling roller 2, It is sandwiched between a cooling drum and a belt for cooling, and has the same advantages as the double belt cooler, and further, the installation space can be reduced.

However, since the drum type rolling and cooling device uses the sheet-shaped belt 9 when pressing it against the cooling drum 7 after rolling with the rolling roller 2, the driving mechanism 8 for the belt 9, the tension adjusting mechanism 10, and Requires a meandering prevention mechanism 11 for the belt 9 and the like, which makes the device complicated and large, and has poor maintainability.

Further, the material 1 was cooled only from one surface on the cooling drum 7 side, and the cooling efficiency was poor. Further, since the belt portion 9 cannot obtain the rolling effect, the required material thickness cannot be obtained in the case of a material that expands after being rolled by the rolling roller 2 (Japanese Patent Publication No. 9273/1990). (See Japanese Patent Publication No. 4-64490).

[0010]

As described above in detail, the conventional belt-type rolling and cooling apparatus has a drawback that the installation area becomes very large. In addition, in the drum type rolling and cooling device that can reduce the installation space, the belt drive system device is complicated and large, and the maintainability is poor, and the material is cooled only from one side on the cooling drum side, and the cooling efficiency is high. Moreover, since the rolling effect cannot be obtained in the belt portion, there is a problem that a material thickness that cannot be obtained in the case of a material that expands after being rolled by a rolling roller.

The present invention has been made in view of such conventional problems, and as a method of pressing a material against a cooling drum, by using a plurality of pressing rollers, the cooling efficiency of the material is improved and the maintainability is improved. The objective is to improve, downsize the device, and improve the material quality.

[0012]

In order to achieve the above object, the drum type rolling and cooling apparatus of the present invention uses a plurality of pressing rollers as a method for pressing a material against a cooling drum, thereby simplifying the apparatus and cooling. The gist is that functions such as thickness adjustment can be added.

According to a first aspect of the present invention, there is provided a drum type rolling / cooling apparatus which comprises a cooling drum (hereinafter referred to as a cooling drum) having a cooling function in a method of rolling and cooling a molten material (hereinafter referred to as a material), To press the material to the cooling drum behind the rolling roller in a drum-type rolling and cooling device in which the material is rolled and cooled by a rolling roller having a function (hereinafter referred to as rolling roller), and then pressed against the cooling drum to further cool the material. It is characterized in that a plurality of holding rollers are provided.

According to a second aspect of the present invention, in addition to the above configuration, the pressing roller is provided with a cooling mechanism.

According to a third aspect of the present invention, in addition to the structure of the first aspect, a mechanism is provided that can change the distance between each pressing roller and the cooling drum.

According to a fourth aspect of the present invention, in addition to the structure of the first aspect, a mechanism for driving one or a plurality of pressing rollers is provided.

According to a fifth aspect of the present invention, in addition to the above configuration, a mechanism is provided which can change the driving speed of one or a plurality of pressing rollers.

According to a sixth aspect of the invention, in addition to the configuration of the first aspect, the friction resistance of the surface of the pressing roller and / or the cooling drum is increased.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below in more detail with reference to the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of a drum type rolling and cooling device of the present invention. The same parts as those shown in FIGS. 2 to 4 are denoted by the same reference numerals.

In the drum type rolling and cooling apparatus of the present invention, a cooling drum 7 having a rotating shaft supported horizontally in a main part, a refrigerant 4 from a cooling mechanism provided in the cooling drum 7, and the cooling drum 7 are provided. A rolling roller 2 for pressing and rolling the material 1 to be processed against the cooling drum 7 and a plurality of pressing rollers 3'for transferring the material 1 while pressing the material 1 against the cooling drum 7.

Next, the operation according to the invention of each claim in the drum type rolling and cooling device will be described. In FIG. 1, a material 1 is put on a cooling drum 7 in the direction of the arrow, rolled between a rolling roller 2 and rapidly cooled. Next, the material 1 on the cooling drum 7 is conveyed to a plurality of pressing rollers 3'arranged on the outer periphery of the cooling drum, and while being pressed against the cooling drum 7 by these pressing rollers 3 ', the material 1 is cooled to a lower discharge part. While being transported, it is discharged.

Further, in the drum type rolling and cooling device of the second aspect, a mechanism for cooling the pressing roller 3'of FIG. 1 from the inside or the outside is provided, and when the pressing roller 3'is pressed against the cooling drum 7 and conveyed, 1 is cooled from both sides.

Further, in the drum type rolling and cooling device of the third aspect, the distance between the pressing roller 3'and the cooling drum 7 in FIG. 1 is variable, and the material thickness can be adjusted by adjusting this distance. Roll to size.

Further, in the drum type rolling and cooling device according to the fourth aspect, a mechanism for driving one or a plurality of the pressing rollers 3'of FIG. 1 is provided, and the mechanism between the pressing roller and the cooling drum 7 is provided. Ensures material feed and prevents material cracking.

In the drum type rolling and cooling device according to the fifth aspect, a material is added to the device for driving the pressing roller 3'of FIG. 1 by adding a speed change device and changing the speed of the pressing roller according to various materials. Makes it easier to bite between the presser roller and the cooling drum, and also prevents material cracking.

In the drum type rolling and cooling device according to the sixth aspect of the present invention, the surface of the pressing roller 3'and / or the cooling drum 7 of FIG.

[0027]

According to the invention described in claim 1, when pressing the material rolled by the rolling roller against the cooling drum, a plurality of pressing rollers are used as shown in FIG. 1, so that the apparatus is very compact and It will be simple. That is, this can reduce the cost of the device and improve the maintainability. Further, since the continuous pressing rollers are fixed, rolling effect can be obtained between the pressing rollers and the cooling drum. According to the invention described in claim 2, by cooling the pressing roller according to claim 1 from the outside or the inside, the material can be cooled while being pressed against the cooling drum. Therefore, since the material is cooled from both sides, the cooling efficiency is better than that of the type in which the belt is pressed on one side. As a result, for example, when it is desired to obtain the same cooling capacity, the device can be downsized. According to the invention described in claim 3, since the distance between the pressing roller and the cooling drum according to claim 1 can be freely changed, the thickness of the material can be freely set. According to the invention described in claim 4, by driving the pressing roller according to claim 1, there is an effect of further improving the biting property of the material between the cooling drum and the pressing roller and preventing the material from cracking. . According to the invention described in claim 5, by driving the pressing roller according to claim 1 and by making the drive portion have a variable speed, the biting property of the material between the cooling drum and the pressing roller is further improved. It also has the effect of preventing material cracking.
According to the sixth aspect of the present invention, by making the surfaces of the plurality of pressing rollers and / or the cooling drum rough, the biting property of the material is improved.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment of a drum-type rolling and cooling device according to the present invention.

FIG. 2 is a schematic configuration diagram of an example of a conventional single-belt type rolling and cooling device.

FIG. 3 is a schematic configuration diagram of an example of a conventional double belt type rolling cooling device.

FIG. 4 is a schematic explanatory view of a conventional drum type rolling and cooling device.

[Explanation of reference numerals] 1 material 2 rolling roller 3, 3'holding roller 4 refrigerant 6 cooling belt 7 cooling drum

Claims (6)

[Claims] 1. A method for rolling and cooling a molten material, comprising:
In a drum-type rolling cooling device that cools a material with a cooling drum having a cooling function and a rolling roller having a cooling function, cools the material, and then further cools the material by pressing the material against the cooling drum. A drum-type rolling and cooling apparatus comprising a plurality of pressing rollers for pressing the material onto the cooling drum. 2. The drum-type rolling and cooling device according to claim 1, wherein the pressing roller is provided with a cooling mechanism. 3. The drum type rolling and cooling device according to claim 1, further comprising a mechanism capable of varying the distance between each pressing roller and the cooling drum. 4. The drum-type rolling and cooling device according to claim 1, further comprising a mechanism for driving one or more pressing rollers. 5. The drum type rolling and cooling device according to claim 1, further comprising a mechanism capable of driving one or a plurality of pressing rollers and varying a driving speed thereof. 6. The drum-type rolling and cooling device according to claim 1, wherein the frictional resistance of the surface of the pressing roller and / or the cooling drum is increased.