KR102337987B1 - Synthetic resin mixing system - Google Patents

Abstract

The present invention provides a first roller 100 on which a synthetic resin is wound in order to mix a synthetic resin melted in a gel state; a second roller 200 spaced apart from the first roller 100 to pressurize the synthetic resin; a plurality of work units formed on the first roller 100 to mix or guide the synthetic resin wound around the first roller 100 to both sides; a transfer unit 400 for vertically or horizontally transferring the work unit; a vertical connection frame 710 extending from the work unit support 703 for fixing the work unit to the front down in an arc shape; Horizontal connection frame 720 extending to the lower left and right sides of the vertical connection frame 710; and other working units installed upwardly on the left and right ends of the horizontal connection frame 720, respectively, and the other working units include: the lower left contact blade 700a; and a lower right contact blade (700b). That is, it relates to a synthetic resin mixing system that maximizes the mixing efficiency of a synthetic resin material, vinyl chloride resin, for kneading and kneading a synthetic resin wound on a roller.

Description

Synthetic resin mixing system {SYNTHETIC RESIN MIXING SYSTEM}

The present invention relates to a synthetic resin mixing system that maximizes the mixing efficiency of synthetic resin materials such as polyethylene, polypropylene, and vinyl chloride resin. More specifically, as a technique for kneading by mixing a synthetic resin wound on a roller, one of the methods of mixing and kneading a synthetic resin wound on a roller is polyethylene, polypropylene , polyvinyl chloride, etc. are put into an extruder, pyrolyzed through a screw, processed into a molten gel, and then processed and discharged through the extruder, vinyl chloride, and synthetic resin are mixed so that the materials are well mixed. At this time, the discharged synthetic resin is wound around one of the two rollers formed side by side and rotated. Then, the synthetic resin that is wound and rotated on the roller is cut with a cutter, put again between the rollers, and is mixed by repeating the operation of winding on the roller.

In relation to the present invention, conventionally registered Patent No. 1608296 (2016.03.28.), Registered Patent No. 1941341 (2019.01.16.), etc. are provided. Reference is made to the examples of FIGS. 1 and 2 .

The example of FIG. 1 constitutes the frame of the synthetic resin mixing system (facilities, devices) and is installed in the frame 90, which is a configuration in which each part is installed, and the frame 90, such as vinyl chloride resin extruded in a gel state. A first roller 100 on which the synthetic resin (VR) is wound, and a second roller (200) formed apart from the first roller (100) by a predetermined distance to pressurize the synthetic resin (VR) wound around the first roller (100) , Formed on top of the first roller 100 and mixing the synthetic resin (VR) wound on the first roller 100, the blade 300 and the transfer unit 400 for vertically or horizontally transporting the blade 300, including is composed

The first roller 100 is formed such that the synthetic resin (VR) extruded into a cylindrical shape in the extruder is wound. The first roller 100 may be formed with a heater for heating the first roller 100 so that the wound gel-type synthetic resin VR does not harden. The second roller 200 is to press and thinly spread the synthetic resin VR wound around the first roller 100 , and is formed side by side with the first roller 100 spaced apart from the first roller 100 by a predetermined distance. The first roller 100 and the second roller 200 are formed to rotate in opposite directions, and the synthetic resin VR wound around the first roller 100 is pressed by the second roller 200 and the first roller 100 ) and rolled up thinly.

The blade 300 is for mixing the synthetic resin (VR) wound around the first roller 100 and is formed on the first roller 100 and is coupled to be movable vertically or horizontally by the transfer unit 400 . . A work unit support 303 is formed on the upper portion of the blade 300 and is coupled by a fixing member 310 between the plate 412 and the auxiliary plate 413, and the plate 412 is a vertical transfer unit (to be described later) ( coupled to the plunger 411 of 410 . Since the working unit support 303 is hinged between the plate 412 and the auxiliary plate 413, by changing the coupling angle of the working unit support 303, the blade 300 presses the synthetic resin (VR), and You can change the angle.

The transfer unit 400 includes a work unit, that is, a vertical transfer unit 410 for transferring the blade 300 up and down and a horizontal transfer unit 420 for horizontally transferring the blade 300 by combining the vertical transfer unit 410 . is composed by

The vertical transfer unit 410 is composed of a plunger 411 and a cylinder to transfer the blade 300 up and down by hydraulic pressure to pressurize the synthetic resin VR. In the vertical transfer unit 410, a pressure sensor and a pressure adjusting means are formed to measure the pressure applied when the synthetic resin (VR) is pressurized to prevent excessive pressure from being applied, so that the pressure measured by the pressure sensor is preset. When the pressure is higher than the specified pressure, it is determined that the blade 300 is pressing the first roller 100 and the pressure regulating means lowers the pressure of the vertical transfer unit 410, so that the first roller 100 or the blade 300 is damage can be prevented. In the embodiment, the vertical transfer unit 410 composed of the plunger 411 and the cylinder has been described, but in addition to the plunger and the cylinder, the blade 300 such as an actuator driven pneumatically or hydraulically is moved up and down to pressurize the synthetic resin (VR). It may be formed in various configurations.

The horizontal transfer unit 420 is coupled to the vertical transfer unit 410 to move the blade 300, and may be formed of a plunger 421 and a cylinder in the same manner as the horizontal transfer unit 420, a motor and a ball An actuator composed of a screw, an actuator driven by pneumatic or hydraulic pressure, an actuator composed of a gear or a belt, etc. may be configured to move the blade 300 left and right.

In the operation of the synthetic resin mixing system according to the above-described configuration, the synthetic resin (VR) melted in a gel state in the extruder and extruded into a cylindrical shape is inserted between the first roller 100 and the second roller 200 formed side by side spaced apart by a predetermined distance. do. At this time, as the first roller 100 rotates, the synthetic resin VR is wound on the first roller 100, and the second roller 200 rotates in the opposite direction and the synthetic resin wound on the first roller 100 ( VR) to spread thinly.

When the synthetic resin (VR) wound on the first roller 100 is pressed with a constant pressure by using the horizontal transfer unit 420 to press the blade 300 set in the position with the vertical transfer unit 410, the first roller 100 The synthetic resin (VR) is split by the rotational force of the blade and guided to both sides through the blade surface (301). The synthetic resin VR is guided to both sides, stretched again by the second roller 200 and wound around the first roller 100 . By repeatedly performing the same operation while moving the blade 300 horizontally, the gel-state synthetic resin (VR) is automatically mixed.

The present invention is to provide a more improved mixing operation equipment, and to provide a synthetic resin mixing system that can further increase the efficiency in automatically mixing and mixing synthetic resins. In particular, when adjusting the spacing (h2) To minimize the inclination of the left and right bottom contact blades, the initial set angle is to be maintained.

The synthetic resin mixing system of the present invention,

In order to mix the molten synthetic resin in a gel state, a first roller 100 on which the synthetic resin is wound; a second roller 200 spaced apart from the first roller 100 to pressurize the synthetic resin; an upper contact blade 700 formed on the first roller 100 to mix the synthetic resin wound around the first roller 100 or guide both sides; a transfer unit 400 for vertically or horizontally transferring the upper contact blade 700; a vertical connection frame 710 extending from the working unit support 703 for fixing the upper contact blade 700 to the front downward in an arc shape; a horizontal connection frame 720 extending to the lower left and right sides of the vertical connection frame 710; a lower left contact blade 700a and a lower right contact blade 700b installed upward, respectively, at the left and right ends of the horizontal connection frame 720; In the synthetic resin mixing system comprising,

By varying the refraction adjustment angle (h1) further provided with a separation adjustment means that can adjust the spacing adjustment interval (h2), the separation adjustment means is a combination of a four-joint link of the vertical connection frame 710 and the refraction adjustment hinge portion (y100) It is done by

The vertical connection frame 710 includes a vertical connection frame upper part 713 and a vertical connection frame lower part 714, and the vertical connection frame lower part 714 includes a first link 714a and a second link 714b. Including, the first link (714a) takes a rod shape and the hinge shaft holes (ay) are formed at both ends, and the second link (714b) takes the rod shape and the hinge shaft holes (ay) are punched at both ends. is formed, the first link (714a) and the second link (714b) are arranged in parallel,

Refraction adjustment hinge portion (y100) includes an upper hinge shaft portion (y110) fixed to the lower end of the vertical connection frame upper part 713, and a lower hinge axis portion (y120) disposed at the lower end of the vertical connection frame lower part 714 and the horizontal connection frame 720 is fixed to the lower hinge shaft portion y120,

The upper hinge shaft portion (y110) includes an upper hinge shaft square member (y111), an upper first hinge shaft (y112) and an upper second hinge shaft (y113), and the upper hinge shaft square member (y111) is perforated to be spaced apart. It is provided as a rectangular shape member with two, upper and lower hinge shaft holes (ay),

The lower hinge shaft portion (y120) includes a lower hinge shaft square member (y121), a lower first hinge shaft (y122), and a lower second hinge shaft (y123), and the lower hinge shaft square member (y121) is perforated to be spaced apart. It is provided as a rectangular shape member with two, upper and lower hinge shaft holes (ay),

The upper first hinge shaft (y112) is formed by hinge-joining the upper hinge shaft hole (ay) of the upper hinge shaft square member (y111) and the upper hinge shaft hole (ay) of the second link (714b) with a hinge pin (ax). under,

The upper second hinge shaft (y113) is made by hinged with a hinge pin (ax) between the lower hinge shaft hole (ay) of the upper hinge shaft rectangular shape member (y111) and the upper hinge shaft hole (ay) of the first link (714a) under,

The lower first hinge shaft (y122) is formed by hinged with a hinge pin (ax) between the upper hinge shaft hole (ay) of the lower hinge shaft square member (y121) and the lower hinge shaft hole (ay) of the second link (714b). under,

The lower second hinge shaft y123 is formed by hinge-joining the lower hinge shaft hole ay of the lower hinge shaft square member y121 and the lower hinge shaft hole ay of the first link 714a using a hinge pin ax. .

On the other hand, another more advanced embodiment with respect to the blade in the synthetic resin mixing system of the present invention,

The upper end of the ∩-shaped rolling blade bracket 811 is fixed to the lower end of the working unit supports 703 and 803, and the rotating shaft 812 of the rolling blade 800 is rotatably mounted to the rolling blade bracket 811, and , the rolling blade 800 is configured to take a rhombus shape having a left and right width d1 when viewed from the front to have an inclined side surface 813 given a steep slope a2.

According to the present invention, there is provided a synthetic resin mixing system that can increase efficiency in a synthetic resin mixing system that can reduce the manpower waste of synthetic resin mixing work, lower the cost, and improve work safety by minimizing the risk of safety accidents. .

1, the upper drawing is a front view and a side view of the synthetic resin mixing system, and the lower drawing is a front view and a side view showing the operation of the mixing equipment.
2 is another example, the upper drawing is a front view, a side view and a rear view, the middle drawing is a front view and a side view showing the operating state, and the lower drawing is a side view showing the state in which the refraction control unit 730 is added. will be.
Hereinafter, as showing examples related to the present invention,
In FIG. 3, FIG. 3A is a side view and a partial view, and FIG. 3B is a bottom view.
4A and 4B are state diagrams showing the operation.
5 is a front view and a side view showing an advanced embodiment of the blade.
6 is a front view showing another advanced embodiment of the blade.

The blade 300 used as the working unit is composed of an upper contact blade 700, a lower left contact blade 700a, and a lower right contact blade 700b. Referring to FIG. More specifically, the blade 300 is a lower left contact blade 700a and a lower right contact blade 700b which are respectively disposed (two arranged) on the left and right from the upper contact blade 700 and the upper contact blade 700 . ) contains a pair of A vertical connection frame 710 and a horizontal connection frame 720 for connecting and fixing them are added and configured. The upper contact blade 700, the lower left contact blade 700a, and the lower right contact blade 700b, which are positioned on the frame 90, simultaneously split the synthetic resin VR by the rotational force of the first roller 100. By guiding each side to both sides, the working speed is quickly increased. At this time, the synthetic resin VR is guided to both sides, stretched again by the second roller 200 and wound around the first roller 100 . By repeatedly performing the same operation while moving the upper contact blade 700, the lower left contact blade 700a, and the lower right contact blade 700b horizontally, the gel-state synthetic resin (VR) is more three-dimensionally fast and efficient mixing (mixing, kneading) is performed automatically.

The vertical connection frame 710 takes the shape of an arc from the body of the work unit support 703 whose upper end 711 fixes the upper contact blade 700, and folds downward (downward) toward the front. It extends as if protruding, and the lower end takes the form of retreating back again. Therefore, since the vertical connection frame 710 takes the shape of an arc and surrounds the front side of the first roller 100, the size (diameter) of the arc must be sufficiently larger than the diameter of the first roller 100 on which the synthetic resin is wound. do. In addition, the vertical connection frame 710 is preferably a metal member having sufficient strength and thickness to withstand strong pressure and vibration. The vertical connection frame 710 is refracted like a hinge in the middle of the body to adjust the refraction adjustment angle h1, and a refraction adjustment unit 730 having a configuration capable of maintaining the refraction adjustment angle h1 refracted with a fixing pin or the like. can be provided By setting the refraction control angle (h1) of the refraction control unit 730, the spacing adjustment interval (h2) suitable for processing and mixing of the synthetic resin (vr) wound around the first roller 100 (h2) (left with respect to the upper contact blade 700) Adjusting the separation distance of the lower contact blade (700a) or the lower right contact blade (700b)} can be increased or decreased. The spacing adjustment interval (h2) is . At the same time, by setting the refraction adjustment angle h1, the contact angle of the lower left contact blade 700a and the lower right contact blade 700b with respect to the first roller 100 may be adjusted in parallel. In this regard, angle adjustment equipment may be added to the lower left contact blade 700a and the lower right contact blade 700b.

A horizontal connection frame 720 may be connected to the left and right sides of the bottom 712 of the vertical connection frame 710 (extension formed or separately manufactured and then combined). The left and right ends of the horizontal connection frame 720 are provided in such a way that the contact blade support 721 is extended or attached in the vertical direction upward, so that the lower left contact blade 700a and the lower right end, which are work units additionally provided, respectively. It is fixed so that the contact blade (700b) faces upward. Viewed from the side, the lower left contact blade 700a / lower right contact blade 700b and the upper contact blade 700 are installed to face each other in the vertical direction (x1) and the horizontal direction (x2). That is, they are arranged in a form symmetrical to each other.

The lower left contact blade 700a and the lower right contact blade 700b are installed so as to be spaced apart (x3) from the upper contact blade 700 to the left and right (side) when viewed from the front or rear, respectively, and the synthetic resin (vr) They have different trajectories for cutting or reversing. The lower left contact blade (700a) and the lower right contact blade (700b) are mounted with a spaced arrangement (x4) twice the distance of the spaced arrangement (x3). At this time, the body of the horizontal connection frame 720 can be used by adding a distance adjusting means 725 to the body of the horizontal connection frame 720 to adjust the separation distance of the spacing arrangement (x3) / (x4).

An embodiment of the present invention will be described with reference to FIGS. 3 and 4 . In order to mix the synthetic resin melted in the gel state, a first roller 100 on which a synthetic resin is wound, a second roller 200 spaced apart from the first roller 100 and pressurizing the synthetic resin, and the first roller 100 An upper contact blade 700 formed on the upper part to mix or guide the synthetic resin wound around the first roller 100 to both sides, a transfer unit 400 for vertically or horizontally transporting the upper contact blade 700, and an upper contact blade A vertical connection frame 710 extending from the work unit support 703 fixing the 700 to the front downward in an arc shape, and a horizontal connection frame 720 extending to the lower left and right sides of the vertical connection frame 710 And, it includes a lower left contact blade (700a) and a lower right contact blade (700b) which are respectively upwardly installed on the left and right ends of the horizontal connection frame (720). As in the example of the bottom right of FIG. 2, the spaced adjustment means is further provided to adjust the spacing adjustment interval (h2) by varying the refraction adjustment angle (h1), but the spacing adjustment means in the present invention is a vertical connection frame (710) And it is provided by the combination of the four-bar link constituted by the refraction control hinge unit (y100).

The vertical connection frame 710 is divided into a vertical connection frame upper part 713 and a vertical connection frame lower part 714 . The part 713 on the vertical connecting frame is made of a single member taking the shape of an arc. On the other hand, the vertical connection frame lower part 714 to configure a four-bar link is made including a first link (714a) and a second link (714b).

The first link 714a takes the form of a rod (rod), and a perforated (perforated) hinge shaft hole ay is formed at both ends in the longitudinal direction. Likewise, the second link 714b also takes a rod shape and has hinge shaft holes ay that are perforated at both ends in the longitudinal direction.

The refraction adjustment hinge part y100 includes an upper hinge shaft part y110 disposed in the middle of the body of the vertical connection frame 710 and a lower hinge shaft part y120 disposed at the lower end of the vertical connection frame 710, Both the hinge shaft portion y110 and the lower hinge shaft portion y120 are disposed parallel to each other. Here, the horizontal connection frame 720 is fixed to one side of the lower hinge shaft portion y120.

The upper hinge shaft portion y110 includes an upper hinge shaft rectangular shape member y111 of a square shape, an upper first hinge shaft y112, and an upper second hinge shaft y113. The upper hinge shaft rectangular member (y111) is provided as a rectangular member having two holes, the upper hinge shaft hole (ay) and the lower hinge shaft hole (ay) punched apart to be spaced apart.

In addition, the lower hinge shaft portion y120 includes a lower hinge shaft rectangular shape member y121 of a square shape, a lower first hinge shaft y122 and a lower second hinge shaft y123. The lower hinge shaft rectangular member (y121) is provided as a rectangular member having two holes, the upper hinge shaft hole (ay) and the lower hinge shaft hole (ay) punched apart to be spaced apart.

The upper first hinge shaft y112 is formed by hinged coupling between the upper hinge shaft hole ay of the upper hinge shaft square member y111 and the upper hinge shaft hole ay of the second link 714b with a hinge pin ax. .

And the upper second hinge shaft (y113) is the lower hinge shaft hole (ay) of the upper hinge shaft rectangular shape member (y111) and the upper hinge shaft hole (ay) of the first link (714a) is hinged with a hinge pin (ax), is done

On the other hand, the lower first hinge shaft (y122) is the upper hinge shaft hole (ay) of the lower hinge shaft rectangular shape member (y121) and the lower hinge shaft hole (ay) of the second link (714b) is hinged with a hinge pin (ax) become made

And the lower second hinge shaft (y123) is the lower hinge shaft hole (ay) of the lower hinge shaft square member (y121) and the lower hinge shaft hole (ay) of the first link (714a) is hinged with a hinge pin (ax) is done

At this time, the upper hinge shaft part (y110) or the lower hinge shaft part of the refraction control hinge part (y100), such as a rotation lock facility or construction cost of a conventionally used method in order to fix the refraction adjustment angle (h1) after changing it. It can be configured by adding to (y120).

The state of the operation as shown in FIG. 4 can be implemented through the configuration of the separation control means having the function of the 4-bar link described above,

By varying the refraction adjustment angle (h1) to adjust the spacing adjustment interval (h2), the lower left contact blade (700a) and the lower right contact blade (700b) which are respectively upwardly installed at the left and right ends of the horizontal connection frame 720 While moving up and down, the lower left contact blade 700a/lower right contact blade 700b can be moved in a vertical state without being tilted at the same time.

That is, looking at the example of the drawing at the bottom of FIG. 2 , in order to control the spacing adjustment (h2), if the refraction adjustment angle (h1) is changed, the lower left contact blade (700a) / the lower right contact blade (700b) is tilted accordingly. Since (a0) is given, the lower left contact blade 700a / lower right contact blade 700b does not maintain the initially set accurate angle with respect to the first roller 100 that rotates, so work performance is hindered. can be prevented from causing

On the other hand, the blade 300 including the upper contact blade 700, the lower left contact blade 700a, and the lower right contact blade 700b causes damage to each other due to frictional force while the blade tip is in contact with the first roller 100, can receive In order to prevent this, in the prior art, there is provided a method of mounting a small roller through a (rotation) shaft on the blade end of the blade 300 . However, as the (rotation) shaft of the roller is buried in the synthetic resin of the object to be worked, the synthetic resin permeates into the (rotation) shaft and interferes with the rotation of the roller.

In order to improve the above problems, another embodiment of the synthetic resin mixing system of the present invention is disclosed with reference to the bar shown in FIGS. 5 and 6 .

The blade 300 is provided as a large roller that can replace itself, and the left and right width d1 of the rotation shaft 812 to correspond to the (left and right) width of the blade 300 so as to take a shape similar to the front shape of the blade 300 . ) is exemplified in FIG. 5 of the rolling blade 800 to which it is determined. The rolling blade 800 has a rhombus shape when viewed from the front. And since the left and right width d1 of the blade tip portion and the rotation shaft 812 portion is large, the side surface of the rolling blade 800 is formed as an inclined side surface 813 given a steep slope a2. The rotating shaft 812 of the rolling blade 800 is rotatably supported by a rolling blade bracket 811 in the ∩ shape, and the rolling blade bracket 811 has its upper end firmly at the lower end of the working unit support 803. is fixed

The rolling blade 800, which has a size and shape similar to that of the blade 300 when viewed from the front through the above-described configuration, has a height such that the rotating shaft 812 of the rolling blade 800 is not buried in the synthetic resin to be worked during the mixing operation. Since it is guaranteed, normal rotation is always possible, and as the rolling blade 800 rotates along the first roller 100, friction between each other is minimized, so that the mixing operation can be easily performed. In addition, when performing work by mounting the rolling blade 800, since a circular roller-shaped blade is used when viewed from the side, the inclination ( The problem of a0) may not occur or be minimized.

The embodiment shown in FIG. 6 provides a more improved rolling blade 800 based on the embodiment of FIG. 5 .

The rolling blade 800 is provided in a rhombus shape when viewed from the front, and the inclined side surface 813 of the rolling blade 800 has a curved surface d3 curved in an arcuate shape. This is to provide an arcuate roller side 813 ′ corresponding to a curved curved surface like the blade 300 illustrated in FIG. 1 to better cut the synthetic resin during the mixing operation. The concave curved surface d3 formed on the arcuate roller side surface 813 ′ has a gap d2 different from the side surface 813 provided as a straight line d4 . Accordingly, as in the example of FIG. 6 , the mixing operation may be performed while the synthetic resin vr is gently cracked along the concave curved surface d3.

a first roller 100; a second roller 200; blade 300; transfer unit 400; vertical transfer unit 410; Horizontal transfer unit 420; upper contact blade (700); lower left contact blade (700a); lower right contact blade (700b); rolling blade 800; vertical connection frame 710; Horizontal connection frame 720;

Claims (1)

a first roller 100 on which a synthetic resin is wound; a second roller 200 spaced apart from the first roller 100 to pressurize the synthetic resin; an upper contact blade 700 formed on the first roller 100 to mix the synthetic resin wound around the first roller 100 or guide both sides; a transfer unit 400 for vertically or horizontally transferring the upper contact blade 700; a vertical connection frame 710 extending from the working unit support 703 for fixing the upper contact blade 700 to the front downward in an arc shape; a horizontal connection frame 720 extending to the lower left and right sides of the vertical connection frame 710; a lower left contact blade (700a) and a lower right contact blade (700b) installed upward, respectively, at the left and right ends of the horizontal connection frame 720; A separation adjustment means capable of adjusting the spacing adjustment interval (h2) by varying the refraction adjustment angle (h1); including,
The spacing adjustment means is made by a combination of a four-bar link of the vertical connection frame 710 and the refraction adjustment hinge portion (y100),
The vertical connection frame 710 includes a vertical connection frame upper part 713 and a vertical connection frame lower part 714, and the vertical connection frame lower part 714 is a first link 714a and a second link 714b. Including, the first link (714a) takes the form of a rod and is formed with perforated hinge shaft holes (ay) at both ends, and the second link (714b) takes a rod shape and has hinge shaft holes (ay) perforated at both ends. is formed, the first link (714a) and the second link (714b) are arranged in parallel,
Refraction adjustment hinge portion (y100) includes an upper hinge shaft portion (y110) fixed to the lower end of the vertical connection frame upper part 713, and a lower hinge axis portion (y120) disposed at the lower end of the vertical connection frame lower part 714 and the horizontal connection frame 720 is fixed to the lower hinge shaft portion y120,
The upper hinge shaft portion (y110) includes an upper hinge shaft rectangular member (y111), an upper first hinge shaft (y112), and an upper second hinge shaft (y113), and the upper hinge shaft rectangular shape member (y111) is spaced apart from each other. It is provided as a rectangular large member with upper and lower hinge shaft holes (ay),
The lower hinge shaft portion y120 includes a lower hinge shaft square member y121, a lower first hinge shaft y122 and a lower second hinge shaft y123, and the lower hinge shaft square member y121 is spaced apart from each other. It is provided as a rectangular large member with upper and lower hinge shaft holes (ay),
The upper first hinge shaft (y112) is made by hinged with the hinge pin (ax) of the upper hinge shaft hole (ay) of the upper hinge shaft square member (y111) and the upper hinge shaft hole (ay) of the second link (714b) under,
The upper second hinge shaft (y113) is made by hinged with a hinge pin (ax) between the lower hinge shaft hole (ay) of the upper hinge shaft rectangular shape member (y111) and the upper hinge shaft hole (ay) of the first link (714a) under,
The lower first hinge shaft (y122) is made by hinged with a hinge pin (ax) between the upper hinge shaft hole (ay) of the lower hinge shaft rectangular shape member (y121) and the lower hinge shaft hole (ay) of the second link (714b) under,
The lower second hinge shaft (y123) is formed by hinged with a hinge pin (ax) between the lower hinge shaft hole (ay) of the lower hinge shaft square member (y121) and the lower hinge shaft hole (ay) of the first link (714a). under,
At the lower end of the working unit support 703, the upper end of the rolling blade bracket 811 taking the ∩ shape is fixed,
The rotating shaft 812 of the rolling blade 800 is rotatably mounted on the rolling blade bracket 811,
Synthetic resin mixing system, characterized in that.

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