JPH0811176B2 - Rotating cylinder type processing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary cylinder type processing apparatus, and more particularly to the surface of a rotary cylindrical body on which an article to be cooled or heated such as synthetic resin, crushed fish or meat is desired to be cooled or heated. The present invention relates to a device for supplying and processing to the.

[0002]

2. Description of the Related Art Conventionally, this type of device has been used as a cooling device which is a part of a crushing device in a manufacturing process of thermoplastic and thermosetting synthetic resins and the like. It is disclosed in Japanese Patent No. 225882. A conventional rotary cylinder type processing apparatus described in this publication has a cylindrical body 1 rotatably supported as shown in FIG. 8 and a cooling or heating mechanism 2 for cooling or heating the cylindrical body 1. And a supply unit 3 for supplying an object to be processed to the surface of the cylindrical body 1, and an object 4 to be processed which is disposed adjacent to the supply unit 3 and comes out of the supply unit, is pressed against the surface of the cylindrical body 1 and rolled. The pressure roll 5 and an endless belt 6 which is stretched along the outer periphery of the cylindrical body 1 and transfers the object 4 to be processed supplied to the surface of the cylindrical body 1 while being in close contact with the cylindrical body 1.
A crusher 7 for finely crushing the solid-state treated object 4 such as a resin, which comes out of the winding range of the endless belt 6 around the cylindrical body 1, and the crushed treated object 4 accommodated in the receiving groove 8 in the casing. It mainly consisted of a screw conveyor 10 for discharging to the outside.

[0003]

However, in the conventional rotary cylinder type processing apparatus configured as described above, the object 4 to be processed supplied from the supply unit 3 is in the form of a continuous sheet on the surface of the cylindrical body 1. For this reason, it was necessary to crush the finely crushed material with the crushing machine 7 in consideration of the subsequent usage of the cooled or heat-treated object 4.

Although the crusher 7 is schematically shown in FIG. 8, the structure is complicated and large, the maintenance is difficult, and the crushing noise during operation is loud, so that the casing 9 is large.
Since it is necessary to take into account sound-proofing function and dust is generated, there is a problem in terms of cost, labor and environment, and its improvement has been desired.

The object of the present invention is to solve the above-mentioned problems of the prior art. The cost is improved and the labor and the environment are improved by taking out the finely processed material without using a crusher. An object is to provide a rotary cylinder type processing device for improvement.

[0006]

A rotary cylinder type processing apparatus of the present invention includes a rotatably supported cylinder, a cooling or heating mechanism for cooling or heating the cylinder, and an extrusion space at an inner peripheral portion. Formed to form a plurality of workpiece dropping holes that are located at each bottom of the extrusion space and communicate with the inside and outside, and are rotatably disposed inside the perforated drum and the perforated drum that are driven to rotate by a driving device, A pressure extruding roll having a convex portion that meshes with the extruding space of the perforated drum is provided on the outer peripheral portion, and a dropping device that supplies the object to be treated in a drop shape to the surface of the cylindrical body, and along the outer periphery of the cylindrical body. Stretched, cylindrical body 1
And an endless belt that is transferred while being in close contact with.

[0007]

According to the rotary cylinder type processing apparatus of the present invention, when the perforated drum is rotated by the driving device, the pressure extrusion roll disposed inside the perforated drum is disposed in the extrusion space of the drum and the outer periphery of the roll. It is rotated by meshing with the protrusion. The object to be processed in the porous drum is pushed out from the object dropping hole by the pressure applied by the protrusion of the pressure-extruding roll entering the space of the porous drum when the convex part of the pressing extrusion roll meshes with the space. At this time, the convex portion of the pressure-extruding roll that has entered the extrusion space of the porous drum due to continuous rotation of the perforated drum and the pressure-extruding roll immediately moves in the direction of exiting from the extrusion space, and decompresses the extrusion space.

As a result, the object to be processed is pushed out from the object dropping hole only while the inside of the extrusion space is being pressurized, and the amount thereof is small, and therefore drops like a drop on the surface of the rotating cylinder. Then, the endless belt is brought into close contact with the rotary cylinder to cool or heat it, and finally it is formed into pellets or buttons and discharged from the apparatus.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The rotating cylinder type processing apparatus of the present invention will be described in more detail with reference to the embodiments shown in the drawings. FIG. 1 shows a rotary cylinder type processing apparatus 20 according to an embodiment of the present invention. The rotary cylinder type processing device 20 is an example used as a cooling device in a synthetic resin manufacturing process.

Rotating cylindrical processing device 20 as a cooling device
Includes a cylindrical body 22 rotatably installed inside the casing 21, and a cooling medium introduction port 23 is provided inside the cylindrical body 22 to cool the outer peripheral surface. Above the cylindrical body 22, a synthetic resin 2 in a molten state, which is an object to be processed, is provided.
A dropping device 25 for supplying 4 to the surface of the cylindrical body 22 is installed.

The dropping device 25 is rotatably installed,
A perforated drum 26 having substantially the same width as the cylindrical body 22 and a pressure extrusion roll 2 rotatably installed in the perforated drum 26.
7 and 7. As shown in FIGS. 2 and 3, inner teeth 28 are formed on the inner peripheral portion of the perforated drum 26 over the entire width thereof. A predetermined interval is provided at the bottom of the tooth groove 29 of the inner tooth 28 along the width direction of the porous drum 26, that is, the longitudinal direction of the tooth groove 29, and
A large number of objects to be processed drip holes 3 penetrating the peripheral wall plate 30
1 is formed.

On the other hand, the inside of the perforated drum 26 is shown in FIG.
As shown in FIG. 5, a pressure-extruding roll 27 having teeth 32 that mesh with the inner teeth 28 of the perforated drum 26 is rotatably arranged on the outer peripheral portion. The structural relationship between the perforated drum 26 and the pressure extrusion roll 27 and the support structure for the perforated drum 26 are as follows. FIG. 4 is a sectional view showing the right half of the perforated drum 26 partially broken away, and the left side has a substantially similar structure.

The perforated drum 26 is supported by a connecting ring 35 mounted on the outer peripheral support surface of the fixed support 33 via a bearing 34 with its end face fixed by a fixing bolt 36. The pressure-extruding roll 27, which is arranged inside the porous drum 26 so as to mesh with the internal teeth 28 thereof, has the shaft portions 37 provided at both ends thereof, together with the bearing 38 in the recess formed in the inner end surface of the fixed support 33. Fitted and perforated drum 26
It is rotatably supported at a position where it engages at the bottom of the.

A rotary driving device 39 is attached to a connecting ring 35 fixed to one end (the right side in this embodiment) of the porous drum 26, and the connecting ring 35 is rotated by the rotary driving device 39. Thereby, the perforated drum 26 is rotated. When the perforated drum 26 rotates, the pressure-extruding roll 27 that meshes with its inner teeth also rotates.

By the way, the fixed support 33 supporting the porous drum 26 is provided with a hollow cylindrical introduction portion 40 for introducing the molten synthetic resin, which is an object to be processed, into the porous drum 26. That is, the introduction portion 40 is arranged along the axial direction of the perforated drum 26, and both ends thereof are integrally connected to the inner end portions of the fixed support bodies 33. As shown in FIG. 2, a treatment object introducing port 41 is provided on one side of the introducing unit 40. The hollow portion in the cylindrical body of the introduction portion 40 acts as a flow path 42 for the object to be treated, and one end thereof communicates with a passage 43 formed in the fixed support body 33 as shown in FIG. It communicates with an introduction pipe 44 extending from a processed material supply source (not shown).

Next, on the outer peripheral surface of the cylindrical body 22 for cooling the molten resin as the object to be treated, the object 24 to be treated dropped on the surface of the cylindrical body 22 is transferred along with the rotation of the cylindrical body. The endless belt 45 is stretched. That is, the endless belt 45 is wound around the drive roller 46 and the two guide rollers 47, and at this time, the belt portion of the endless belt 45 stretched between the drive roller 46 and the guide roller 47 is a cylindrical body. It is partially wrapped around 22.

Next, the operation of the rotary cylinder type processing apparatus 20 according to the above embodiment will be described. A liquid or gaseous cooling medium which is usually used as a cooling medium such as water, ethylene glycol aqueous solution, calcium chloride aqueous solution, Freon gas, ammonia gas is introduced into the inside of the cylindrical body 22 from the cooling medium introducing port 23. The outer peripheral surface of 22 is cooled from the inside. Then, the cylindrical body 22 is rotated by a suitable driving device (not shown), and the endless belt 45 is also moved by the driving roller 46 in synchronization with the rotation speed of the cylindrical body 22.

On the other hand, the perforated drum 26 of the dropping device 25 is rotated by the driving device 39 as described above, and the pressure push-out roll 27 meshing with the internal teeth 28 is also rotated with the rotation of the perforated drum 26. . The molten resin 24, which is the object to be processed, is supplied from the supply source to the introduction pipe 44 and the fixed support 33.
Is introduced into the perforated drum 26 from the object introduction port 41 through the passage 43 and the flow path 42 of the introduction part 40. At that time, as shown in FIG. 2, the molten resin 24 is introduced to the rear side in the rotation direction of the perforated drum 26 across the pressure extrusion roll 27.

The molten resin 24 thus introduced into the perforated drum 26 as shown in FIG. 2 and pooled into the tooth grooves 29 between the inner teeth 28 of the perforated drum 26 and the teeth 32 of the pressure extruding roll 27. The molten resin in the tooth space 29 is pressurized with the entry of and is pushed out from the object dropping hole 31. At this time, the teeth 32 of the pressure extruding roll 27 that have entered the tooth groove 29 of the perforated drum 26 due to the continuous rotation of the perforated drum 26 and the pressure extruding roll 27 move in the direction immediately out of this tooth groove 29. The pressure in the tooth space 29 is reduced, and this operation is continuously repeated.

As a result, the molten resin 24 is extruded from the object dropping hole 31 for a short time while the tooth groove 29 of the perforated drum 26 is being pressurized, and the amount thereof is small and therefore rotates like a drop. It falls on the surface of the cylindrical body 22. Also,
When the inside of the tooth groove 29 of the perforated drum 26 shifts from pressurization to depressurization, the molten resin remaining in the workpiece dropping hole 31 is drawn in, so the molten resin extruded in a drop shape is well cut and drops forever. Never.

In this way, the cylindrical body 22 is formed into a drop shape little by little.
The molten resin dropped intermittently on the surface is transferred by the endless belt 45 while being in close contact with the cylindrical body 22, and is cooled and solidified during that time. As a result, the resin 48 in the solid state, which has come out of the winding range of the endless belt 45 with respect to the cylindrical body 22, has a pellet shape or a button shape, and is directly discharged from the discharge port of the casing 21 to the outside.

The rotary cylinder type processing apparatus 20 according to the above-mentioned embodiment is for cooling molten resin as an object to be processed, and therefore, the dropping apparatus 25 is provided with a heater 49 so as to surround the perforated drum 26. Further, the heater 50 (FIG. 2) is also installed in the flow path 42 of the introduction section 40 to prevent the solidification of the molten resin during the process.

FIG. 5 shows a rotating cylindrical processing apparatus 51 according to another embodiment of the present invention, in which the cylindrical body 2 is used.
A pressure roll 52, which is adjacent to the dropping device 25 in the outer peripheral portion of 2 and is on the rotation direction side of the cylindrical body 22, presses the molten resin 24 supplied in a drop shape from the dropping device 25 onto the surface of the cylindrical body 22 and rolls it. It is rotatably installed.
The other configuration is the same as that of the previous embodiment. By pressing the molten resin dropped in the shape of a drop by the pressure roll 52 from above and flattening the molten resin, the shapes of the molten resin can be made uniform and the occurrence of whiskers can be prevented.

That is, as shown in FIG. 6, if the molten resin is still dripped from the dropping device 25, whiskers as shown by reference numeral 24a may occur or the overall shape may become non-uniform. These defects can be eliminated by pressing with the pressure roll 52. At that time, the surface of each of the dropped molten resin is cooled by introducing a cooling medium into the pressure roll 52 and cooling the cooling medium, so that more uniform shape can be obtained.

Further, in place of the pressure roll 52 described above, as shown in FIG. 7, a pressure roll 54 having recesses 53 formed at the same pitch as the molten resin to be dropped (supply interval to the surface of the cylindrical body) is provided. Uniformity of the shape is further improved by pressing and cooling the dropped molten resin 24 into.

In each of the embodiments described above, the dropping device 25
As shown in FIG. 1, it is preferable that the molten resin is installed so as to drop onto the surface of the cylindrical body 22 in the range of 45 ° from the center of the cylindrical body 22 to the vertical axis.
The diameter of the object dropping hole 31 formed on the surface of the perforated drum 26 in the dropping device 25 is preferably 0.5 to 3 mm in the case of dropping molten resin.

In the above description, the rotating cylinder type processing device 2 is used.
0 was used in the synthetic resin manufacturing process, but the apparatus 20 of the present invention can also be applied to the case where heat treatment such as fish and meat surimi is performed. In this case, an appropriate heating medium such as hot water, steam, doubtham oil, SK oil, mineral oil, silicone oil, or molten salt is supplied from the heating medium introduction port 23 to the inside of the cylindrical body 22.

[0028]

As described above, according to the rotary cylinder type processing apparatus of the present invention, the object to be processed is dripped on the surface of the cylindrical body by the dropping apparatus, and the endless belt makes close contact with the surface of the cylindrical body. Since it is transferred while cooling and heating or cooling, the object to be processed after cooling or heating becomes pelletized or button-shaped, so that it is not necessary to crush it with a crusher as in the past, and as a result Since noise and dust are not generated and maintenance is not required, problems in cost, working labor, environment, etc. can be improved, and downsizing of the device can be achieved.

[Brief description of drawings]

FIG. 1 is a structural explanatory view schematically showing a rotary cylindrical processing apparatus according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view schematically showing a dropping device in the rotary cylindrical processing device shown in FIG.

FIG. 3 is a partially enlarged perspective view of the inside of a porous drum of the dropping device shown in FIG.

FIG. 4 is a sectional view showing a right half of the dropping device shown in FIG. 2 in a cutaway manner.

FIG. 5 is a structural explanatory view schematically showing a rotary cylindrical processing apparatus according to another embodiment of the present invention.

FIG. 6 is a front view showing a molten resin with a beard and a non-uniformly shaped molten resin in a state where the molten resin is still dripping from the dripping device to the surface of the cylindrical body in the rotary cylindrical processing apparatus of the present invention.

FIG. 7 is a front view showing another modification of the pressure roll in the rotary cylindrical processing apparatus shown in FIG.

FIG. 8 is a structural explanatory view showing a conventional rotary cylindrical processing device.

[Explanation of symbols]

 20 Rotating Cylindrical Type Processing Device 21 Casing 22 Cylindrical Body 23 Cooling or Heating Medium Inlet 24 Molten Resin 25 Dropping Device 26 Perforated Drum 27 Pressing and Extruding Roll 28 Inner Teeth 29 Tooth Groove 30 Circumferential Wall Plate 31 Object Dripping Hole 32 Teeth 45 Endless belt 46 Drive roller 47 Guide roller 48 Solid resin

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location A23P 1/10 B01J 2/24 2/26 B29B 9/10 9350-4F 13/02 9350-4F 13/04 9350 -4F B29C 55/18 7639-4F F25D 1/02 A 13/00 Z 31/00

Claims (1)

[Claims] 1. A rotatably supported cylindrical body, a cooling or heating mechanism for cooling or heating the cylindrical body, an extrusion space formed in an inner peripheral portion, and inner and outer portions located at respective bottoms of the extrusion space. A plurality of workpiece dropping holes that communicate with each other and are rotatably disposed inside the perforated drum that is rotationally driven by a drive device, and a convex portion that meshes with the extrusion space of the perforated drum on the outer peripheral portion. And a dropping device for supplying the object to be treated to the surface of the cylindrical body in the form of a drop, and the cylindrical body 1 is stretched along the outer periphery and transferred while being in close contact with the cylindrical body 1. A rotating cylindrical processing device including an endless belt.