JP4961121B2 - Rotary resin material supply device for waste resin such as sprue and runner - Google Patents

Description

  The present invention provides, for example, a sprue / runner that can be used as a raw material for a resin molding machine or the like simply by introducing a waste material resin such as a sprue / runner generated in the molding of a heat-stable composition synthetic resin product into the inlet. The present invention relates to a rotary resin material supply apparatus for waste resin such as the above.

Conventionally, a resin material supply device such as a hopper in which a resin material inlet is formed in the upper part and a discharge port connected to a resin molding machine or the like is formed in the lower part is known. Uses a virgin material (master batch or the like) suitable for a molded product by charging it into a resin molding machine or the like from the charging port (see, for example, Patent Document 1).
On the other hand, waste resin such as sprue and runner is generally produced in the molded product. This waste resin is cut into fine pieces with a cutting machine or the like, and then added to the virgin material to obtain a raw material for a resin molding machine or the like. As a result, the waste resin is reused (see, for example, Patent Document 2).

Thus, the virgin material and the waste material resin are often mixed and used as the raw material.
JP 2001-269932 A JP-A-5-305614

  However, the waste resin such as the sprue runner has to be used after being finely cut with a cutting machine and then mixed with the virgin material.

  On the other hand, since the cutting machine generally includes both a large crushing blade for roughly cutting waste resin and a small cutting blade for finely cutting, the apparatus itself becomes larger, and the like on a resin molding machine or the like. There is a problem that it is difficult to install in a limited space.

  Therefore, as a result of intensive research aimed at solving such problems all at once, the present applicants, etc., used a waste material resin such as a sprue and a runner for the resin material supply device itself that is introduced into the inlet of a resin molding machine or the like. The idea of having the function of cutting is a new idea, and a rotary type resin material supply device for waste resin such as a sprue and runner, which has not been heretofore, has been provided.

In order to achieve the above object, a rotary type resin material supply device for waste resin such as a sprue runner according to claim 1 has an inlet at an upper portion and an outlet at a lower portion, and a rotary cutting blade accommodating chamber therebetween. A plurality of cutting blades having a material feed opening and a protruding portion formed on the outer periphery so as to be rotatable in the rotary cutting blade storage chamber. A rotary cutting blade supported by the rotary cutting blade, and the rotary cutting blade has a small cutting blade portion in which the cutting blade portion of the entire circumference is defined by at least one peripheral wall formed along the circumferential direction. while the rotary cutting blade is rotated in the direction of the fixed blade, from the inlet, by placing the waste resin generated along with the molding of the resin product and by the said fixed blade and a rotary cutting blade The serial waste resin is Setsu砕, and a structure to discharge from the discharge port.

A rotary type resin material supply device for waste resin such as a sprue runner according to claim 2 has a main body housing provided with a rotary cutting blade accommodating chamber therebetween with an input port formed at the top and a discharge port formed at the bottom. A fixed blade provided on one bottom of the charging port; a plurality of cutting blade portions having a material delivery opening portion projecting from the outer periphery; and a rotary cutting blade rotatably supported in the rotary cutting blade storage chamber; The rotary cutting blade has a small cutting blade portion in which the cutting blade portion of the entire circumference is defined by at least one circumferential groove formed along the circumferential direction, and the rotary cutting blade is The waste resin is crushed by the fixed blade and the rotary cutting blade by introducing the waste resin generated with the molding of the resin product from the input port while rotating in the direction of the fixed blade, It is a structure that is discharged from the serial outlet.

According to a third aspect of the present invention, there is provided a rotary resin material supply apparatus for waste resin such as a sprue runner according to the first aspect, wherein the small cutting blade portions are arranged in a staggered manner on the left and right sides of the peripheral wall .
According to a fourth aspect of the present invention, there is provided a rotary resin material supply apparatus for waste resin such as a sprue runner according to the second aspect, wherein the small cutting blade portions are arranged in a staggered manner on the left and right sides of the circumferential groove.

A rotary type resin material supply device for waste resin such as a sprue runner according to claim 5 is characterized in that, in claim 2 or 4 , the fixed blade is formed with a protruding piece that is fitted into the peripheral groove of the rotary cutting blade. is doing.

The rotary resin material supply device for waste resin such as sprue runner according to claim 7 is the rotary resin material supply device according to any one of claims 1 to 6, wherein the width dimension of each small cutting blade portion of the rotary cutting blade is It is formed smaller than the size of the waste resin.
A rotary resin material supply device for waste resin such as a sprue runner according to claim 8 is the rotary resin material supply device according to any one of claims 1 to 7, wherein both sides of the rotary cutting blade are rotated when the rotary cutting blade rotates. A pair of dust wipers in which a spiral groove is formed to direct the traveling direction of the waste resin toward the rotary cutting blade side is attached.

A rotary type resin material supply device for waste resin such as a sprue runner according to claim 6 is the rotary cutting blade according to any one of claims 2, 4 and 5, wherein the rotary cutting blade is provided at the other bottom end of the charging port. A scraper that is fitted into the circumferential groove is provided.

Rotary resin material feeding apparatus of waste resins such as sprue runners according to claim 9, in any one of claims 1-8, the rotary cutting blade storage chamber, to the extent that flow of gas is prevented The structure ensures a sealing property.

Rotary resin material feeding apparatus of waste resins such as sprue runners according to Claim 10, in any one of claims 1 to 9 the body housing is connected to a material supply device and supplying the resin pellets material The pellet resin is charged and mixed from the material supply device at a predetermined timing.

The present invention has the following effects.
According to the rotary resin material supply device for waste resin such as sprue and runner according to claims 1 and 2 , since the resin material supply device itself has a cutting function, waste resin such as sprue and runner is introduced from the inlet. If it throws in, waste material resin, such as this sprue and a runner, will be pressed on a fixed blade in the state mounted on the material sending open | release part of a rotary cutting blade, and will be cut | disconnected by the cutting blade part of a fixed blade and a rotary cutting blade. And the cut piece cut | disconnected passes through a rotary cutting blade storage chamber in the state which entered the material sending open | release part of a rotary cutting blade, is dropped from a discharge port, and is thrown into a resin molding machine etc. as it is. Of course, if virgin material is also introduced from the inlet, it passes through the rotary cutting blade storage chamber while being placed on the material delivery opening of the rotary cutting blade, is dropped from the outlet, and is introduced into a resin molding machine or the like. The

  Therefore, there is no trouble of finely cutting the waste resin such as a sprue and a runner with a cutting machine or the like as in the prior art, and the working efficiency can be improved.

  In addition, because waste resin such as sprue and runner has a simple structure that can be cut with a fixed blade and a rotary cutting blade, it does not require a large crushing blade like a conventional cutting machine, and the device itself is downsized. And can be easily installed in a limited space such as on a resin molding machine.

According to the rotary type resin material supply apparatus for waste resin such as sprue and runner according to claim 7, the rotary cutting blade has a width dimension of each small cutting blade part larger than the dimension of the waste resin such as sprue and runner. Since it is formed in a small size, the cutting dimensions of waste resin such as sprue and runner can be defined reliably.

According to the rotary resin material supply device for waste resin such as sprue and runner according to claims 3 and 4 , since the small cutting blades are arranged in a staggered manner on the left and right of the peripheral groove or peripheral wall,・ Even if waste material resin such as runner is placed on the circumferential groove or wall, it will surely advance and retreat in the direction of the fixed blade and be accommodated in either the left or right material delivery opening part. It is possible to prevent staying on the circumferential groove or the circumferential wall, and to improve work efficiency.

According to the rotary resin material supply device for waste resin such as the sprue runner according to claim 5 , since the fixed blade is formed with the protruding piece fitted into the circumferential groove of the rotary cutting blade, the sprue runner It is possible to prevent the waste material resin from being fitted into the circumferential groove and to reliably cut the waste material resin.

According to a rotary resin material feeding apparatus of waste resins such as sprue runners according to Claim 8, on both sides of the rotary cutting blade, during rotation of the rotary cutting blade, the rotary cutting blade side the direction of travel of the waste material resin A pair of dust wipers with a spiral groove directed to is attached, so that the finely crushed waste resin is prevented from being discharged further outwards from both sides of the rotary cutting blade, and reliably discharged it can. The dust wiper can be integrated with the rotary cutting blade or separately.

  According to the rotary resin material supply device for waste resin such as a sprue runner according to claim 6, a scraper that is fitted into the circumferential groove of the rotary cutting blade is provided at the other bottom end of the input port. When the sprue and runner cut pieces that have entered the material delivery opening of the rotary cutting blade are not dropped and discharged from the discharge port, they are scraped off by the scraper and discharged reliably.

According to the rotary resin material supply device for waste resin such as a sprue and runner according to claim 9 , the rotary cutting blade housing chamber is a structure that ensures a sealing property to the extent that gas flow is prevented. Therefore, it is possible to prevent waste resin from leaking out from gaps and to discharge it reliably.

According to the rotary resin material supply device for waste resin such as a sprue runner according to claim 10 , the main body housing is connected to the material supply device for supplying the resin pellet material, and a predetermined timing is provided from the material supply device. Since the resin pellet material is charged and mixed at the same time as the waste resin such as sprue and runner, or by feeding the pellet resin at a predetermined time interval, the rotary cutting blade, fixed blade, rotary cutting blade accommodation chamber Can be washed.

  Hereinafter, the present invention will be described with reference to the drawings.

  FIG. 1 is an overall perspective view showing a use state of an embodiment of a rotary resin material supply apparatus A for waste resin such as a sprue and runner according to the present invention, and FIG. FIG. 3 is a perspective view showing an embodiment of the rotary blade according to the present invention shown in FIG. 1 and FIG.

  Hereinafter, a description will be given based on FIGS.

  A resin material supply apparatus A (hereinafter, abbreviated as “rotary resin material supply apparatus A”) that can recycle waste resin S such as a sprue and runner according to the present invention has an inlet 11 at the upper side and an outlet at the lower side. 12 is formed, and a plurality of cuttings having a main body housing 1 provided with a rotary cutting blade accommodating chamber 13 therebetween, a fixed blade 2 provided on one bottom portion 11a of the charging port 11, and a material delivery opening portion 31. The blade portion 32 is formed so as to protrude on the outer periphery, and is provided with a rotary cutting blade 3 rotatably supported in the rotary cutting blade housing chamber 13, and while the rotary cutting blade 3 is rotated in the direction of the fixed blade 2, 11, the waste resin S such as sprue and runner is introduced to crush the waste resin S with the fixed blade 2 and the rotary cutting blade 3, and the cut waste resin S ′ is discharged from the discharge port 12. It is obtained by the structure to be.

  The details will be described below.

  The main body housing 1 is a box that is opened only up and down, and a rotation motor M for rotating the rotary cutting blade 3 is provided on one side wall of the main body housing 1.

  As shown in FIG. 2, the rotary cutting blade storage chamber 13 formed in the main body housing 1 has a cylindrical shape opened upward and downward at the approximate center of the main body housing 1. The opening functions as an inlet 11 through which the waste material resin S is introduced, and the lower opening functions as an outlet 12 through which the waste material resin S that has been cut is discharged.

  The insertion port 11 is formed in a tapered shape that is narrowed downward, and is provided on the bottom 11a of the lower end of the inclined surface of the rotary cutting blade 3 on the rotational direction side. The fixed blade 2 is provided over 11 width directions.

  The fixed blade 2 is fixed to the bottom 11a of the charging port 11 with a screw 21 or the like, and the waste resin S is cut by the cooperation of the fixed blade 2 and the rotary cutting blade 3. A scraper (described later) for removing fine resin powder attached to the rotary cutting blade 3 can be provided at the lower end of the other inclined surface of the charging port 11 provided with the fixed blade 2.

  A rotary shaft 5 that is pivotally attached to the rotary cutting blade 3 is pivotally supported at the center of the rotary cutting blade accommodation chamber 13 in the longitudinal direction, and one end of the rotary shaft 5 is connected to the rotary motor M. .

  The rotary cutting blade 3 is formed by projecting a plurality of cutting blade portions 32 having a material delivery opening portion 31 on the outer periphery on a donut-shaped outer periphery in which a shaft hole 33 penetrating the rotation shaft 5 is opened in the center, The cutting blade portion 32 is pivotally attached to the rotary cutting blade housing chamber 13 with a gap of about 0.25 mm, and the rotary cutting blade 3 is rotatably supported. With such a structure, airflow resistance is generated in the gap between the rotary cutting blade accommodation chamber 13 and the cutting tooth portion 32 and gas flow is prevented, so that sealing performance can be ensured.

  Moreover, in order to ensure sealing performance, it is only necessary to prevent at least one gas flow between the rotary cutting blade 3 and the rotary cutting blade accommodation chamber 13, so that, for example, in a suitable place of the rotary cutting blade accommodation portion 13, By providing a flapper valve element (not shown) that deforms when it comes into contact with the rotary cutting blade 3, it is possible to further ensure the sealing performance.

  During the operation of cutting the waste resin S such as a sprue and a runner, there is a cut piece in the gap between the rotary cutting blade 3 and the rotary cutting blade accommodating portion 13, so that the sealing performance is further improved. Since the resin S is placed on the material delivery opening portion 31 of the rotary cutting blade 3 with a sufficient space, clogging does not occur.

  Reference numeral 34 denotes a locking groove for preventing the rotary cutting blade 3 from spinning with respect to the rotation of the rotary shaft 5, and the convex portion 51 of the rotary shaft 5 is fitted into the locking groove 34.

  Moreover, although the cutting blade part 32 provided in the outer periphery of the rotary cutting blade 3 can also be formed in 1 row, in a present Example, the 2 rows of cutting blade part 32 is formed in the outer periphery of the rotary cutting blade 3 This is an example.

  Specifically, the rotary cutting blade 3 of the present embodiment has small cutting blade portions 32a that are formed by partitioning the entire cutting blade portion 32 with a single peripheral wall 35 along the circumferential direction. The width of the small cutting blade portion 32a is smaller than the size of the waste material resin S such as a sprue or runner.

  Therefore, since the waste material resin S such as sprue and runner is cut by the width dimension of the small cutting blade portion 32a, the cutting dimension of the waste material resin S is not limited in any shape or direction. This can be cut uniformly.

  In the present embodiment, as shown in FIG. 3, the small cutting blade portions 32 a are formed in a staggered manner on the left and right sides of the peripheral wall 35.

  If such a staggered arrangement is formed, even if the waste material resin S such as a sprue or runner is placed on the peripheral wall 35, it will surely advance and retreat in the direction of the fixed blade 2, and either left or right material Since it is accommodated in the delivery opening part 31, it can prevent that the waste material resin S stays on the surrounding wall 35, and can improve work efficiency.

  In addition, since the material delivery opening portion 31 is formed in a substantially right-angled cross section that is erected substantially vertically in the rotation direction, the strength toward the small cutting blade portion 32a on the erection side is increased. Even if it is hard waste material resin S which can be raised and is hard to cut | disconnect, this can be cut | disconnected easily.

  Furthermore, the material delivery opening portion 31 is not a mere depression like a dimple, but is opened toward one side. For this reason, the waste resin S accommodated in the material delivery opening 31 and passed through the rotary cutting blade accommodation chamber 13 is released not only to the outside but also to the side at the discharge port 12. The used waste material resin S can be reliably discharged. Therefore, the material delivery opening portion 31 is formed to be slightly inclined from the peripheral wall 35 toward the side.

  FIG. 4 is a schematic explanatory view showing another embodiment of the rotary cutting blade 3, (a) is an overall perspective view of the rotary cutting blade 3, (b) is a plan view of the rotary cutting blade 3, (c) ) Shows a schematic longitudinal sectional view of the state in which the rotary cutting blade 3 is accommodated in the main body housing 1. Here, parts common to those in FIGS. 1 to 3 are denoted by common numbers, and description thereof is omitted.

  The rotary cutting blade 3 shown in FIG. 4 exemplifies the one having the small cutting blade portion 32a formed by dividing the entire cutting blade portion 32 by a single circumferential groove 35a along the circumferential direction. The width of the small cutting blade portion 32a is smaller than the size of the waste material resin S such as a sprue or runner.

  In the case where the circumferential groove 35a is formed, the material delivery opening portions 31 are opened toward both sides. Therefore, the waste resin S accommodated in the material delivery opening portion 31 and passed through the rotary cutting blade accommodation chamber 13 is released not only to the outside but also to both sides at the discharge port 12. The used waste resin S can be discharged more reliably.

  On the other hand, when the circumferential groove 35a is formed, the above-described effect can be obtained, but the waste resin S may be fitted into the circumferential groove 35a. Therefore, the fixed blade 2 corresponding to the circumferential groove 35a includes the circumferential groove 35a. A protruding piece 22 to be inserted is formed. If such a protruding piece 22 is formed, even if the waste material resin S is fitted in the circumferential groove 35a, the waste material resin S is scraped out and transferred to the material delivery opening portion 31, so that the waste material resin S can be reliably cut.

  In addition, in FIG. 4, although the circumferential groove 35a was formed between the small cutting blade parts 32a of 1 row each and the both sides of the small cutting blade part 32a were opened, this small line of small cuttings was illustrated. Instead of the tooth portion 32a, the two rows of rotary cutting blades 3 shown in FIG. 3 may be provided.

  By forming such a circumferential groove 35a, even if the rotary cutting blades 3 are formed in three or more rows, if the circumferential groove 35a is formed for each row or every two rows, at least one side is formed. Therefore, the rotary cutting blades 3 can be formed in a desired plurality of rows according to the size of the waste resin S or the like.

  In addition, the fine resin powder adhering to the rotary cutting blade 3 is removed at the lower end of the other inclined surface of the inlet 11 provided with the fixed blade 2 as shown in FIGS. 4B and 4C. It is preferable to provide a scraper 2a for the purpose, and if such a scraper 2a is provided, the cut piece of the waste material resin S that has entered the material delivery opening portion 31 of the rotary cutting blade 3 is dropped and discharged from the discharge port 12 by any chance. Even if not, the scraper 2a scrapes off the cut pieces of the waste material resin S and the like, and can reliably discharge them to the discharge port 12.

  According to the resin material supply apparatus A according to the present invention configured as described above, since the resin material supply apparatus A itself has a cutting function, while rotating the rotary cutting blade 3 at a low speed, a sprue, a runner, etc. If the waste material resin S is introduced from the insertion port 11, the waste material resin S such as sprue and runner is pressed against the fixed blade 2 in a state of being placed on the material delivery opening portion 31 of the rotary cutting blade 3, and the fixed blade 2 and the rotary It is cut by the cutting blade portion 32 of the cutting blade 3. And the cut piece cut | disconnected passes through the rotary cutting blade storage chamber 13 in the state which entered the material delivery opening | release part 31 of the rotary cutting blade 3, is dropped from the discharge port 12, and throws into resin molding machine B etc. as it is. Is done. Of course, if the virgin material is also introduced from the inlet 12, it passes through the rotary cutting blade housing chamber 13 while being placed on the material delivery opening 13 of the rotary cutting blade 3, is dropped from the outlet 12, and is molded into a resin molding machine. B can be input.

  Therefore, there is no trouble of finely cutting the waste material resin S such as a sprue and a runner with a cutting machine or the like as in the prior art, and the working efficiency can be improved.

  Moreover, the waste material resin S such as a sprue or runner has a simple structure that is cut by the fixed blade 2 and the rotary cutting blade 3, so that a large crushing blade like a conventional cutting machine is not required, and the apparatus itself. And can be easily installed in a limited space such as on the resin molding machine B.

  FIG. 5 is a schematic perspective view showing still another embodiment of the rotary cutting blade 3 according to the present invention. FIG. 5A shows a pair of dust wipers 7 a and 7 b divided on both sides of the rotary cutting blade 3. FIG. 5B is a perspective view showing a pair of dust wipers 7a and 7b integrally formed on both sides of the rotary cutting blade 3. FIG.

  Here, parts common to those in FIGS. 1 to 4 are denoted by common numbers, and description thereof is omitted.

  On both sides of the rotary cutting blade 3, there are a pair of dust wipers 7a and 7b in which spiral grooves 71a and 71b are formed, respectively, which turn the traveling direction toward the center of the rotary cutting blade 3 when the rotary cutting blade 3 rotates. It is characterized in that it is installed.

  The rotary cutting blade 3 shown in FIG. 5 (a) has spiral grooves 71a and 71b formed in opposite directions on both sides of the rotary cutting blade 3 shown in FIGS. 71a and 71b are formed so that the traveling direction of the rotary cutting blade 3 is directed toward the center of the rotary cutting blade 3 when the rotary cutting blade 3 rotates.

  These dust wipers 7a and 7b are formed in a donut shape in which a shaft hole portion 72 passing through the rotary shaft 5 and a locking groove 73 are opened, and screw holes 36 formed in the rotary cutting blade 3 are formed at appropriate positions. A plurality of mounting holes 74 to be polymerized are formed.

  The dust wipers 7a and 7b are not limited to the same metal as the rotary cutting blade 3, and may be formed of a hard resin.

  If a pair of dust wipers 7 a and 7 b are provided on both sides of the rotary cutting blade 3, the dust wipers 7 a and 7 b are rotated as the rotary cutting blade 3 rotates. Even if a fine resin is about to be discharged, it is pushed back to the rotary cutting blade 3 side by the spiral grooves 71a and 71b and is prevented from moving further outside. The resin S ′ can be prevented from being discharged further outward from both sides of the rotary cutting blade 3 and can be reliably discharged. The dust wipers 7a and 7b are not limited to being separated as shown in FIG. 5A, and can be integrally formed with the rotary cutting blade 3 as shown in FIG. 5B. If the rotary cutting blade 3 and the dust wipers 7a and 7b are integrally formed, the number of parts can be reduced, the structure of the entire apparatus can be simplified, and the size can be further reduced.

  FIG. 6 is a block diagram schematically illustrating an installation example in which a material supply device C for supplying a resin pellet material is connected to a rotary resin material supply device A according to the present invention.

In addition, the same number is attached | subjected to the site | part which is common in the site | part shown in FIGS. 1-5, and the description is abbreviate | omitted.
The rotary type resin material supply device A is connected to the main body housing 1 with a material supply device C that supplies the resin pellet material P. The resin pellet material P is charged and mixed from the material supply device C at a predetermined timing. I try to let them.

  In this way, the inside of the rotary cutting blade 3, the fixed blade 2, and the rotary blade cutting blade housing chamber 13 is cleaned by introducing the pellet resin material T simultaneously with the waste resin S such as a sprue or runner or at a predetermined time interval. I can do it.

It is a whole perspective view which shows the use condition which outlined one Example of rotary type resin material supply apparatus A of waste material resin, such as a sprue runner concerning this invention. It is the longitudinal cross-sectional view which outlined the principal part of FIG. It is the perspective view which showed one Example of the rotary blade which concerns on this invention shown in FIG. 1, FIG. It is a schematic explanatory drawing which shows the other Example of a rotary cutting blade, (a) is the whole perspective view of a rotary cutting blade, (b) is a top view of a rotary cutting blade, (c) is a rotary cutting blade. The schematic longitudinal cross-sectional view of the state accommodated in the main body housing is shown, respectively. It is a schematic perspective view which shows further another Example of the rotary cutting blade which concerns on this invention, (a) is a disassembled perspective view which provided the pair of dust wiper divided | segmented on the both sides of the rotary cutting blade, (b ) Is a perspective view showing a pair of dust wipers integrally formed on both sides of the rotary cutting blade. It is the block diagram which outlined the example of installation in which the material supply apparatus which supplies resin pellet material was connected to the rotary type resin material supply apparatus which concerns on this invention.

Explanation of symbols

A Rotary type resin material supply device B Resin molding machine C Material supply device S Waste material resin P such as sprue and runner Resin pellet material 1 Main body housing 11 Input port 11a Bottom portion 12 Discharge port 13 Rotary cutting blade storage chamber 2 Fixed blade 2a Scraper 22 Projection piece 3 Rotary cutting blade 31 Material feed opening part 32 Cutting blade part 32a Small cutting blade part 35 Peripheral wall 35a Circumferential groove 4 Rotary blades 7a, 7b A pair of dust wipers 71a, 71b Spiral groove

Claims (10)

A main body housing in which an input port is formed at the top and a discharge port is formed at the bottom, and a rotary cutting blade storage chamber is provided therebetween,
A fixed blade provided on one bottom of the charging port;
A plurality of cutting blade portions having a material delivery opening portion are formed to protrude on the outer periphery, and provided with a rotary cutting blade rotatably supported in the rotary cutting blade storage chamber,
The rotary cutting blade has a small cutting blade portion in which the cutting blade portion of the entire circumference is defined by at least one peripheral wall formed along the circumferential direction,
While the rotary cutting blade is rotated in the direction of the fixed blade, from the inlet, by placing the waste resin generated along with the molding of a resin product, the waste material resin by the said fixed blade and a rotary cutting blade A rotary type resin material supply device that is crushed and discharged from the discharge port. A main body housing in which an input port is formed at the top and a discharge port is formed at the bottom, and a rotary cutting blade storage chamber is provided therebetween,
A fixed blade provided on one bottom of the charging port;
A plurality of cutting blade portions having a material delivery opening portion are formed to protrude on the outer periphery, and provided with a rotary cutting blade rotatably supported in the rotary cutting blade storage chamber,
The rotary cutting blade has a small cutting blade portion that is formed by partitioning the cutting blade portion of the entire circumference with at least one circumferential groove formed along the circumferential direction,
While the rotary cutting blade is rotated in the direction of the fixed blade, from the inlet, by placing the waste resin generated along with the molding of a resin product, the waste material resin by the said fixed blade and a rotary cutting blade A rotary type resin material supply device that is crushed and discharged from the discharge port. In claim 1,
The said small cutting blade part is a rotary type resin material supply apparatus currently arranged in the zigzag form on the right and left of the said surrounding wall . In claim 2,
The said small cutting blade part is a rotary type resin material supply apparatus currently arranged in the zigzag form on the right and left of the said circumferential groove . In claim 2 or 4 ,
The rotary resin material supply apparatus which forms the protrusion piece inserted in the said circumferential groove of the said rotary cutting blade in the said fixed blade. In any one of Claims 2, 4, and 5 ,
A rotary type resin material supply device provided with a scraper fitted into the circumferential groove of the rotary cutting blade at the other bottom end of the charging port. In any one of Claims 1-6,
The rotary type resin material supply apparatus in which the width dimension of each small cutting blade part of the rotary cutting blade is formed smaller than the dimension of the waste resin . In any one of Claims 1-7 ,
On both sides of the rotary cutting blade, during rotation of the rotary cutting blade, wherein a pair of dust wiper spiral groove to direct the traveling direction of the waste resin to the rotary cutting blade side is formed is attached Rotary resin material supply device . In any one of Claims 1-8 ,
The rotary cutting blade housing chamber is a rotary type resin material supply device having a structure that ensures a sealing property to the extent that gas flow is prevented. In any one of Claims 1-9 ,
The said main body housing is connected with the material supply apparatus which supplies resin pellet material, The rotary type resin material supply apparatus which is made to mix and mix a resin pellet material from this material supply apparatus at predetermined timing.

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