JP4699044B2 - Seating device - Google Patents

Description

  The present invention relates to a sheeting apparatus for forming rubber, plastic, and the like into a sheet shape.

  Conventionally, materials discharged from a kneader for mixing materials such as rubber and plastic well are extruded by a biaxial taper screw type material supply unit, and the extruded materials are arranged above and below the material rolling unit. 2. Description of the Related Art A sheeting device that is formed by rolling into a sheet with a roll is known. An example of such a sheeting device is disclosed in Patent Document 1 below.

Japanese Patent No. 1721358

  However, in the conventional sheeting device disclosed in Patent Document 1, the amount of the material supplied from the material supply unit is not stable, so that the sheet shape formed by the material rolling unit is not stable. Moreover, since the material is directly supplied from the material supply unit to the lower roll of the material rolling unit, material residue, foreign matter, and the like (hereinafter referred to as contamination) are likely to occur. Furthermore, although the conventional sheeting apparatus is provided with a cooling mechanism, a sufficient cooling effect is not obtained.

  Accordingly, the present invention provides a sheeting apparatus that can stabilize the shape of the sheet to be formed, improve the quality of the sheet by eliminating material residue and contamination, and reduce the temperature of the formed sheet. Objective.

A sheeting apparatus according to a first invention (corresponding to claim 1) for solving the above problems includes a material supply unit for supplying a material, and a material storage for storing the material supplied from the material supply unit. And a material rolling unit for rolling the material accumulated in the material accumulation unit, and a material pressing member for pressing the material from above is provided on the material accumulation unit, and the material supply unit includes the material accumulation unit comprising a screw for extruding the material into parts, the storage unit comprises a cradle for receiving the material to be pushed out by the screw, the cradle that you have inclined downward with respect to the rotational axis of the screw Features.

  A seating device according to a second invention (corresponding to claim 2) for solving the above-described problems is the seating device according to the first invention, wherein the material pressing member is a pneumatic cylinder, a hydraulic cylinder, a spring, or the like. It is characterized by operating with an elastic body.

  A sheeting apparatus according to a third invention (corresponding to claim 3) for solving the above-described problem is the sheeting apparatus according to the first invention or the second invention, wherein the material accumulation amount of the material accumulation unit is determined. In order to obtain an appropriate amount, the material supply amount of the material supply unit is controlled according to the vertical displacement of the material pressing member.

In fourth aspect sheeting according to (corresponding to claim 4) device, a seating apparatus according to any one of the first invention to the third invention for solving the above problems, the cradle the screw It is characterized in that it is inclined downward from 0 to 45 degrees with respect to the rotation axis.

The above object fifth invention for solving the sheeting according to (corresponding to claim 5) device, the seating apparatus according to any one of the first invention to the fourth invention, the cradle tip and Of the two rolls for rolling the material in the material rolling section, an angle formed by a line connecting the rotation axis of the lower roll and a line connecting the rotation axes of the two rolls is 30. It is characterized in that the angle is from 60 degrees to 60 degrees.

The above problems sixth invention for solving the sheeting according to (corresponding to claim 6) apparatus, the seating apparatus according to any one of the first invention to the fifth invention, the material pressing member, wherein A cooling mechanism is provided on at least one of the cradle, the side wall on the material supply unit side of the material storage unit, and the side wall in the width direction of the material storage unit.

According to the sheeting apparatus according to the first invention, a material supply unit for supplying a material,
A material pressing member for pressing a material against the material storage unit from above, comprising a material storage unit for storing the material supplied from the material supply unit and a material rolling unit for rolling the material stored in the material storage unit By providing, stable rolling is possible in the rolling section, so that the shape of the formed sheet becomes constant, and the quality of the sheet can be improved thereby.

Moreover, the material here is a rubber compound, a plastic compound, a pigment masterbatch, and a resin.
Further, according to the sheeting device according to the first invention, the material supply unit includes a screw for extruding the material to the material accumulation unit, and the accumulation unit includes a cradle for receiving the material extruded by the screw. Since the base is inclined downward with respect to the rotation axis of the screw, the material on the cradle naturally falls to the material rolling part side due to gravity, so it is possible to eliminate material residue and contamination in the material accumulation part. Thereby, the quality of the sheet can be improved. Further, it is possible to reduce the labor and time required for maintenance and inspection such as removing material residue and contamination in the material accumulation unit.

  According to the seating device of the second invention, the material pressing member can be appropriately pressed by operating the material pressing member with an elastic body such as a pneumatic cylinder, a hydraulic cylinder, or a spring. Since the floating weight can be easily extracted from the material storage unit by driving, the labor required for maintenance and inspection in the material storage unit can be reduced.

  According to the sheeting apparatus according to the third invention, in order to make the material accumulation amount of the material accumulation portion appropriate, by controlling the material supply amount of the material supply portion according to the vertical displacement of the floating weight, Since stable rolling is possible, the shape of the sheet to be formed is constant, thereby improving the quality of the sheet.

According to the sheeting apparatus according to the fifth aspect of the present invention, a line connecting the tip of the cradle and the rotating shaft of the lower roll of the two rolls for rolling the material in the material rolling section; By setting the angle formed by the line connecting the rotation axes of the rolls to 30 degrees to 60 degrees, a sufficient capacity of the material accumulation section can be obtained.

According to the seating device in accordance with inventions of the sixth, by providing a cooling mechanism in the material storage unit, it is not necessary to separately provide a facility for cooling the sheet 19 was rolled by a seating device, space saving of the equipment In addition, cost reduction can be achieved.

  An embodiment of a sheeting apparatus according to the present invention will be described with reference to FIGS. 1 is a side view of a sheeting apparatus according to the present invention, FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, FIG. 3 is a side view of the accumulator, FIG. 4 is a plan view of the accumulator, and FIG. FIG. 6 is a side view of a seating device in which the cradle is inclined by 15 degrees with respect to the rotating shaft of the screw according to the present invention. FIG. 6 is a side view of the seating device in which the cradle is inclined by 30 degrees with respect to the rotating shaft of the screw according to the present invention. 7 is a plan view of a cooling mechanism attached to the supply unit side wall of the storage unit, and FIG. 8 is a side view of the side wall of the storage unit.

  As shown in FIG. 1, the sheeting apparatus according to this embodiment includes a material supply unit 16 for supplying a material, a material rolling unit 18 for rolling the material, and between the material supply unit 16 and the material rolling unit 18. The material rolling unit 18 includes a material accumulation unit 17 for temporarily accumulating materials for stable rolling. In order to reduce the burden during maintenance and inspection, the material supply unit 16 and the material storage unit 17 can be easily separated by the rail 40 and the wheel 41.

  In the upper part of the material supply unit 16, there is a material input port 35 for supplying a material. Two tapered screws 34 a and 34 b (see FIG. 4) are installed inside the material supply unit 16. Power is transmitted from a motor (not shown) to the speed reducer 37 using a belt 38, the rotational speed of the screws 34a and 34b is adjusted by the speed reducer 37, and the screws 34a and 34b are rotated at a constant speed by the gear box 36. Like that.

  By rotating the two tapered screws 34 a and 34 b, the material charged from the material charging port 35 is pushed out to the material accumulation unit 17. Cooling water is supplied into the screws 34a and 34b from the screw cooling water supply ports 39a and 39b in order to cool the screws 34a and 34b.

  The material accumulating unit 17 includes a base 3 between the material supply unit 16 and the material rolling unit 18, a side wall 2 in the width direction at the top of the base 3, and a material in a portion where the material of the material supply unit 16 is extruded. It is formed by being surrounded by the supply unit side wall 21 and the two rolls 22 and 23 for material rolling in the material rolling unit 18. The floating weight 1 is provided as a material pressing member so as to be parallel to the cradle 3 above the material accumulation unit 17.

  As shown in FIG. 2, the floating weight 1 is attached to an air cylinder support member 5 via an air cylinder 4. The air cylinder support member 5 is attached to a housing 15 which is a box for protecting the material rolling portion 18 by bolting. The upper part of the floating weight 1 and the lower part of the air cylinder 4 are connected by bolts 6, and the upper part of the air cylinder 4 and the lower part of the air cylinder support member 5 are connected by bolts 7.

  The floating weight 1 can be lowered to the position shown by the broken line E by the air cylinder 4. In the present embodiment, the air cylinder 4 is used, but another elastic body such as a hydraulic cylinder or a spring may be used.

  The floating weight 1 is provided with a cooling mechanism for cooling the material. As shown in FIGS. 2 and 3, the floating weight 1 is manufactured by welding a floating weight lower member 8, floating weight side members 9 and 10, and a floating weight upper surface member 11. Thereby, a space is formed inside the floating weight 1, and the floating weight 1 is cooled by flowing cooling water in this space, thereby cooling the material.

  In order to supply cooling water to the inside of the floating weight 1, a floating weight cooling water supply pipe 12 having a floating weight cooling water flow path 12a provided therein is connected to the upper portion of the floating weight 1 to drain the supplied cooling water. A floating weight cooling water drain pipe 13 having a floating weight cooling water flow path 13 a provided therein is connected to the upper portion of the floating weight 1.

  A guide 14 is provided so that the floating weight cooling water supply pipe 12 and the floating weight cooling water drain pipe 13 can smoothly move as the floating weight 1 moves up and down. The guide 14 is allowed to smoothly move up and down through the floating weight cooling water supply pipe 12 and the floating weight cooling water drain pipe 13.

  Further, considering the stable supply of material to the material rolling unit 18, the material supply amount of the material supply unit 16 can be controlled in accordance with the up and down displacement of the floating weight 1 in order to make the material storage amount of the material storage unit 17 appropriate. Like that.

  The sensors 42 a, 42 b and 42 c are installed on the upper part of the air cylinder support member 5 so as to be stacked in parallel with the floating weight cooling water supply pipe 12. A switch 43 is installed in the floating weight cooling water supply pipe 12 so that the sensors 42a, 42b and 42c can react.

  As shown in FIG. 2, when the material supply amount is large, the floating weight 1 is in the most elevated state. At the same time, the floating weight cooling water supply pipe 12 also rises, thereby raising the switch 43 as well. The sensor 42a reacts to the raised switch 43 to generate a signal, which is received by a control unit (not shown), and the control unit slows the rotational speed of the motor (not shown). As a result, the rotational speeds of the screws 34a and 34b are reduced, and the amount of material supplied to the material accumulation unit 17 is reduced.

  When the material supply amount is small, the floating weight 1 is in the most lowered state indicated by the arrow A. At the same time, the floating weight cooling water supply pipe 12 is also lowered, and thereby lowered to the position of the switch 43a. The sensor 42c reacts with the lowered switch 43a to generate a signal, which is received by a control unit (not shown), and the control unit increases the rotational speed of the motor (not shown). As a result, the rotational speed of the screws 34a and 34b is increased, and the amount of material supplied to the material accumulating unit 17 is increased.

  In this embodiment, three sensors are used to control the rotational speed of the screws 34a and 34b in three stages. However, the number of sensors may be increased or decreased to increase or decrease the number of control stages. Further, the rotation speed may be continuously controlled using a sensor that can continuously detect the rising and falling displacements of the floating weight 1.

  The cradle 3 is provided with a cradle cooling mechanism 3a for cooling the material. As shown in FIG. 2, in order to supply cooling water to the cradle cooling mechanism 3a, the cradle cooling water supply pipe 3b is connected to the material rolling part 18 side below the cradle cooling mechanism 3a, and the supplied cooling water is drained. Therefore, the cradle cooling water drain pipe 3c is connected to the material supply unit side 16 below the cradle cooling mechanism 3a. As shown in FIGS. 2 and 3, the cooling mechanism 3 a is provided with a flow path 3 d for flowing cooling water so that the cooling water can cool the cradle 3 efficiently.

  As shown in FIGS. 2, 3, and 4, the side wall 2 of the material accumulation unit 17 is composed of a plurality of members. A cooling mechanism is provided to cool the material on the side wall 2a of the material accumulation unit that is closest to the material supply unit 16. As shown in FIG. 2, FIG. 3, FIG. 4 and FIG. 8, the material storage unit side wall 2a is provided with material storage unit side wall cooling water channels 31a and 31b for flowing cooling water through the material storage unit side wall 2a. Allow to cool.

  The material accumulation part side wall cooling water flow path 31a is produced by providing a groove on the outer surface of the material accumulation part side wall 2a and welding the lid 29 to the surface provided with the groove. Moreover, the material accumulation part side wall cooling water flow path 31b is produced by making a hole in the material accumulation part side wall 2a from above. Then, a water supply / drain pipe (not shown) is connected to the material storage unit side wall cooling water 31b.

  The material accumulating portion side wall 2a is fixed to the receiving base 3 with bolts 30a by bolting the material accumulating portion side wall supporting member 30 welded to the lid 29. The material accumulation part side wall 2b is provided on the material accumulation part side wall 2a on the material rolling part 18 side. The material accumulation portion side wall 2b is coupled to the material accumulation portion side wall support member 25 by bolts 27 with bolts 27.

  Further, the material storage portion side wall 2c is provided between the end portion on the material rolling portion 18 side of the material storage portion side wall 2b and the end portion on the material rolling portion 18 side of the material storage portion side wall supporting member 25, and this material is provided. The storage portion side wall 2c is joined by bolting the outer side surface with the support member 25 and the bolt 28. The material storage unit side wall support member 24 is joined to the material storage unit side wall support member 25 by welding, and a grip 26 is provided at the outer end of the material storage unit side wall support member 24 so that the grip 26 is held during maintenance of the seating device. Then, the material storage portion side wall 2b and the material storage portion side wall 2c can be pulled out.

  The material supply unit side wall cooling mechanism 33 is provided on the side wall 32 on the material supply unit 16 side of the material storage unit 17 in order to cool the material. As shown in FIG. 7, material supply unit side wall cooling water channels 33 a and 33 b for flowing cooling water to the material supply unit side wall cooling mechanism 33 are provided, so that the cooling water can efficiently cool the material supply unit side wall 32. Like that.

  The material supply unit side wall cooling water channel 33a is formed by providing a groove on the surface of the material supply unit side wall cooling mechanism 33 on the material accumulation unit 17 side and welding the material supply unit side wall 32 to the surface provided with the groove. The material supply unit side wall cooling water channel 31b is formed by making a hole in the material supply unit side wall cooling mechanism 33 from the side. And a water supply / drain pipe (not shown) is connected to the material supply part side wall cooling water flow path 33b. In this embodiment, water is used to cool the material, but a liquid other than water may be used for cooling.

  The material pushed out from the material supply unit 16 is accumulated in the material accumulation unit 17. The accumulated material is rolled into the sheet 19 by the upper roll 22 and the lower roll 23 of the material rolling unit 18. The upper and lower rolls 22 and 23 are provided with a cooling mechanism (not shown) inside. In order to adjust the thickness of the sheet 19 to be rolled, a ball screw 20 for raising and lowering the upper roll 22 is provided at the upper part of the material rolling section 18, and the position of the upper roll 22 is adjusted by rotating this ball screw.

  According to the seating apparatus according to the present embodiment, the provision of the floating weight 1 enables stable rolling at the material rolling portion 18, so that the quality of the sheet 19 can be improved.

  In addition, by using the pneumatic cylinder 4 as the elastic means, the air cylinder can be driven and the floating weight 1 can be easily extracted from the accumulating portion, thereby reducing labor during maintenance and inspection in the material accumulating portion. Can do.

  In addition, in order to control the material supply amount of the material supply unit 16 in accordance with the upward / downward displacement of the floating weight 1 in order to set the material storage amount of the material storage unit 17 to an appropriate amount, the material is stably supplied to the material rolling unit 18. As a result, the quality of the sheet 19 can be improved.

  Furthermore, since the material storage unit 17 is provided with a cooling mechanism, it is not necessary to separately provide equipment for cooling the sheet 19 rolled by the sheeting device, and space saving and cost reduction of the equipment can be achieved.

  In the present embodiment, the surface in which the floating weight 1 is in contact with the material in the material accumulating portion 17 has a concave shape combining a flat surface and a curved surface. However, in order to further stabilize the amount of material supplied to the upper and lower rolls 22 and 23. Furthermore, a convex shape or a planar shape combining a plane and a curved surface may be used in accordance with the characteristics of the material.

  Similarly, in the present embodiment, the cradle 3 is described as a planar shape, but may be a convex shape or a concave shape combining a flat surface and a curved surface.

  In the present embodiment, in the sheeting apparatus described in the first embodiment, the cradle 3 is tilted downward with respect to the rotating shaft of the screw in order to eliminate material residue and contamination in the material accumulation unit 17. Hereinafter, an example of a structure in which the cradle 3 is inclined downward with respect to the rotation shaft of the screw will be described.

As shown in FIG. 5, the angle θ ₁ formed by the line C indicated by B parallel to the rotation axis of the screws 34 a and 34 b and the cradle 3 was inclined downward by 15 degrees.

Further, as shown in FIG. 6, the angle θ ₂ formed by the line C indicated by B parallel to the rotation axis of the screws 34a and 34b indicated by B and the cradle 3 is inclined downward by 30 degrees.

  In the present embodiment, the angle formed between the rotating shafts of the screws 34a and 34b and the cradle 3 is described as being inclined downward by 15 degrees and when inclined by 30 degrees. It may be between 45 degrees.

Further, when the cradle 3 is tilted downward with respect to the rotation shafts of the screws 34a and 34b in this way, the capacity of the material accumulating portion 17 becomes small. The capacity required by adjusting the angle θ ₃ formed by the line connecting the rotation axes of the rolls 23 and the line connecting the rotation axes of the upper and lower rolls 22 and 23 indicated by D within a range of 30 to 60 degrees. Can be obtained.

  According to the seating device according to the present embodiment, the material on the cradle 3 naturally falls to the material rolling part 18 side by gravity by tilting the cradle 3 downward with respect to the rotation shaft of the screw. Material residue and contamination in the material storage unit 17 can be eliminated. Thereby, the stable rolling becomes possible and the quality of the sheet can be improved.

  Further, it is possible to reduce labor for maintenance and inspection such as removal of material residue and contamination in the storage unit 17.

  Furthermore, the angle between the line connecting the tip of the cradle 3 and the rotation axis of the lower roll 23 and the line connecting the rotation axes of the upper and lower rolls 22 and 23 is set to 30 degrees to 60 degrees, so that the material accumulation unit Sufficient capacity can be obtained.

  It can be used when forming a sheet by rolling materials such as rubber and plastic, especially when a high-quality sheet such as a stable shape is required and the sheet temperature after formation is low. This is particularly effective when

It is a side view of the sheeting apparatus concerning the present invention. It is sectional drawing in the AA cross section shown in FIG. It is a side view of an accumulation part. It is a top view of a storage part. It is a side view of the sheeting apparatus which made the cradle inclined 15 degree | times with respect to the rotating shaft of the screw which concerns on this invention. It is a side view of the sheeting apparatus which made the cradle inclined 30 degree | times with respect to the rotating shaft of the screw which concerns on this invention. It is a top view of the cooling mechanism attached to the supply part side wall of an accumulation | storage part. It is a side view of the side wall of a storage part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floating weight 2, 2a, 2b, 2c Material storage part side wall 3 Base 3a Base cooling mechanism 3b Base cooling water supply pipe 3c Base cooling water drain pipe 3d Base cooling water flow path 4 Air cylinder 5 Air cylinder support member 6, 7 Bolt 8 Floating weight lower surface member 9, 10 Floating weight side surface member 11 Floating weight upper surface member 12 Floating weight cooling water supply pipe 13 Floating weight cooling water drain pipe 12a, 13a Floating weight cooling water flow path 14 Guide 15 Material rolling part housing 16 Material supply part 17 Material storage part 18 Material rolling part 19 Sheet 20 Ball screw 21 Material supply part side wall 22 Upper roll 23 Lower roll 24, 25 Material storage part side wall support member 26 Grip 27, 28 Bolt 29 Lid 30 Material storage Product part side wall support member 30a Bolts 31a, 31b Material accumulation part side wall cooling water flow path 32 Material supply part side wall 33 Material supply part side wall cooling mechanism 33a, 33b Material supply part side wall cooling flow path 34a, 34b Screw 35 Material input port 36 gear box 37 speed reducer 38 belt 39a, 39b screw cooling water supply port 40 rail 41 wheel 42a, 42b, 42c sensor 43 switch

Claims (6)

A material supply unit for supplying the material;
A material storage unit for storing the material supplied from the material supply unit;
A material rolling section for rolling the material accumulated in the material accumulation section,
A material pressing member is provided for pressing the material from above on the material accumulation unit ,
The material supply unit includes a screw for extruding material to the material accumulation unit,
The accumulator comprises a cradle for receiving the material extruded by the screw;
Seating apparatus wherein cradle characterized that you have inclined downward with respect to the rotational axis of the screw. The seating device according to claim 1,
A sheeting apparatus, wherein the material pressing member is operated by an elastic body such as a pneumatic cylinder, a hydraulic cylinder, or a spring. In the sheeting apparatus according to claim 1 or 2,
A sheeting apparatus that controls the material supply amount of the material supply unit in accordance with the up-and-down displacement of the material pressing member in order to set the material storage amount of the material storage unit to an appropriate amount. In the seating apparatus in any one of Claims 1 thru | or 3 ,
The seating device according to claim 1, wherein the cradle is inclined downward by 0 to 45 degrees with respect to a rotation axis of the screw. In the seating apparatus in any one of Claims 1 thru | or 4 ,
A line connecting the tip of the cradle and the rotating shaft of the lower roll of the two rolls for rolling the material in the material rolling section, and a line connecting the rotating shafts of the two rolls The sheeting device is characterized in that the angle formed between and is 30 to 60 degrees. In the sheeting apparatus in any one of Claims 1 thru | or 5 ,
A cooling mechanism is provided on at least one of the material pressing member, the cradle, a side wall on the material supply unit side of the material storage unit, and a side wall in the width direction of the material storage unit. Seating device.

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