TW202033333A - Rotary mixer in two-liquid mixture injection machine - Google Patents

Abstract

An internal gear is required in housing for a planetary gear mechanism. A drive rotor 2 and driven rotors 3, 3a are housed in a mixing chamber 5 inside a housing 1; inflow paths 13, 13a for chemical liquid for the mixing chamber 5 are formed in an upper section of the housing 1; an outflow path 14 for the mixed liquid is formed in a lower section of the housing 1; and the mixing chamber 5 can rotate the drive rotor 2 and the driven rotors 3, 3a and is formed so as to be capable of regulating the position of the drive rotor 2 and the driven rotors 3, 3a. The driven rotors 3, 3a can rotate in the opposite direction in conjunction with the rotation of the drive rotor 2, in a state in which the lower ends of the driven rotors 3, 3a are positioned higher than a floor section of the mixing chamber 5 and the upper ends are positioned lower than a lower surface of a lid 4, by meshing the drive rotor 2 and the driven rotors 3, 3a, and, as a result, rotation at a fixed position is possible without providing a housing posture maintenance means for the driven rotors 3, 3a in the housing 1, simply by same meshing with the drive rotor 2 and being housed inside the mixing chamber 5.

Description

Rotary mixer of two-component mixing injection machine

The present invention relates to a rotary mixer of a two-liquid mixing type pouring machine that mixes and spit out two kinds of chemical liquids for casting, forming, coating, etc.

In the past, as a mixer that mixes two fluids with one drive rotor and multiple driven rotors, it can be seen that it has one "central spindle" (hereinafter referred to as the drive rotor) and 12 "planet spindles" (hereinafter referred to as It is a driven rotor, and two types are injected into the “chamber” (hereinafter called the mixing space) from the “bore 19, 26” (hereinafter called the liquid inflow path) formed on the upper part of the “housing” (hereinafter called the housing) The fluid is one that ejects the mixed fluid from the lower part of the housing (for example, refer to Patent Document 1); or has one "drive shaft" (hereinafter referred to as a drive rotor) and 10 "conveying shafts" (hereinafter referred to as a driven rotor) , From the "feed aperture" (hereinafter referred to as the liquid medicine inflow path) and the "flange" (hereinafter referred to as the liquid medicine inflow path) formed on the upper part of the "housing" (hereinafter referred to as the housing) to the "chamber" (hereinafter referred to as the Two kinds of fluids are injected into the mixing space, and the mixed fluid is discharged from the lower part of the casing (for example, refer to Patent Document 2). [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Specification of US Patent No. 5106198 [Patent Document 2] Specification of U.S. Patent No. 5108811

[The problem to be solved by the invention]

However, in the above-mentioned conventional technology, since the driving rotor and the driven rotor meshing with the driving rotor are the so-called "planetary gear mechanism", an internal gear has to be formed in the housing (refer to Figure 4 of Patent Document 1 "10a'" and "24" in Fig. 3 of Patent Document 2), problems that have to be solved such as the complicated structure of the housing. [Means to solve the problem]

In view of the problem that the housing of the planetary gear mechanism based on the above-mentioned prior art requires an internal gear, the present invention accommodates one drive rotor and two driven rotors in the housing side by side, and uses a cover to close the upper opening of the housing. The casing has a mixing space for accommodating the driving rotor and the driven rotor. On the upper part of the casing, two liquid medicine inflow passages are formed in the upper part of the mixing space and openings are formed, and the mixing is formed in the lower part of the casing The flow path of the liquid, the mixing space allows the drive rotor and the driven rotor to rotate, and is formed in a state that can restrict the positions of the drive rotor and the driven rotor. The drive rotor has a drive rotor body with spiral wings, And a connecting portion formed integrally on the upper part of the driving rotor body and penetrating the cover body, the driven rotor is only composed of a driven rotor body with spiral wings, and the spiral wings and the spiral wings of the driving rotor are opposite at the same pitch Winding, the cover body closes the upper opening of the mixing space, and the through hole of the connecting part is formed in the center, so that the driving rotor and the driven rotor are meshed with each other, so that the lower end of the driven rotor is located more than the above The bottom of the mixing space is higher and the upper end is located below the lower surface of the cover. With the rotation of the drive rotor, the driven rotor can be rotated in the opposite direction at the fixed position. By adopting the means of maintaining the accommodating posture of the driven rotor in the mixing space, only by meshing with the driving rotor and accommodating in the mixing space, the driven rotor can also be rotated at a fixed position to solve the above problems. [Effects of Invention]

In short, the present invention accommodates one driving rotor and two driven rotors in a casing side by side, and a cover is used to close the upper opening of the casing. The casing has a mixing space for containing the driving rotor and the driven rotor. The upper part of the casing is formed with two liquid medicine inflow passages opening at the upper part of the mixing space to form outlets, and an outflow passage for the mixed liquid is formed in the lower part of the casing. The mixing space enables the driving rotor and the driven rotor It is rotatable and is formed to limit the positions of the drive rotor and the driven rotor. The drive rotor has a drive rotor body with spiral wings formed integrally in the up and down direction, and a through hole integrally formed on the upper part of the drive rotor body The connecting portion of the cover body, the driven rotor is only composed of a driven rotor body having spiral wings formed integrally in the up and down direction, and the spiral wings and the spiral wings of the drive rotor are wound in opposite directions at the same pitch. The cover closes the upper opening of the mixing space, and the through hole of the connecting part is formed in the center. Therefore, the space between the driven rotor and the inner wall surface of the housing in Patent Document 1 is wide, and only the confluence around the driven rotor can be mixed Even if the liquid medicine can be mixed with only the driven rotor in Patent Document 2, since a plurality of liquid medicine inflow passages are formed in the lower part of the mixing space, the combined liquid medicine can only be mixed in the lower area of the mixing space. Therefore, in Patent Document 1 In the case of 2, the two liquid medicines injected into the mixing space cannot be uniformly mixed before being discharged from the lower part of the casing, and a homogeneous mixed liquid cannot be obtained. In contrast, this application can have 3 rotors in the mixing space The two liquid medicines, which are pressurized from above to below, are surely stirred and mixed in the state of being filled. Therefore, they can be effectively mixed and hardened efficiently. Therefore, products composed of appropriate amounts and optimal materials can be manufactured. The mixing space can rotate the drive rotor and the driven rotor, and is formed in a state in which the positions of the drive rotor and the driven rotor can be restricted, and the drive rotor and the driven rotor are meshed with each other, thereby causing the The lower end of the driven rotor is located above the bottom of the mixing space, and the upper end is located below the lower surface of the cover. With the rotation of the drive rotor, the driven rotor can be rotated in the opposite direction at a fixed position Therefore, the driven rotor can be rotated at a fixed position only by meshing with the driving rotor and accommodated in the mixing space. Therefore, no means for maintaining the storage posture of the driven rotor in the mixing space is required, and the shape of the housing can be simplified.

Since the drive rotor body and the driven rotor body form the right-rotating helical element and the left-rotating helical element in a shape in which the central axis of the spiral is aligned and alternately serially integrated, the drive rotor body and the driven rotor body are The spiral directions of the components of the same section are opposite, so when the combined liquid medicine passes through the driving rotor body and the driven rotor body, the division, conversion, and reversal functions are added, which can be more effectively mixed. Since the rotation direction of the above-mentioned driving rotor is opposite to the rotation direction of the uppermost spiral element, by temporarily pushing the liquid medicine just injected into the housing to the upper part, no air will accumulate in the upper part of the mixing space Therefore, the confluent medicinal solution remaining in the mixing space after stopping will not flow out to the outside all at once, and the on-site environment can be maintained well.

One of the above-mentioned liquid medicine inflow paths is formed from the inlet on the outer side of the casing to the outlet of the central opening in the upper part of the mixing space, and one of the liquid medicine can be injected from the upper part into the driving in the mixing space. In the accommodating area of the rotor, the other of the above-mentioned liquid medicine inflow path is formed from the inlet on the outer side of the housing to the downstream side and branched into two paths to the outlets opened on both sides of the upper part of the mixing space. The other liquid medicine is injected from the upper part into the receiving area of the driven rotor in the mixing space. Therefore, two liquid medicines can be instantly spread over the whole mixing space and mixed with three rotors, so two medicines can be mixed. The practical effects such as more reliable stirring and mixing of the liquid are very great.

In the present invention, as shown in FIG. 7, the rotary mixer is fixed to the head B of the 2-component mixing type injection machine A. Basically, it has a housing 1, and a driving rotor 2 which is housed in parallel in the housing 1. And two driven rotors 3, 3a, and a cover 4 that locks the upper opening of the housing 1.

The housing 1 has a mixing space 5 for accommodating the driving rotor 2 and the driven rotors 3 and 3a, and an accommodating space 6 for the cover 4. The mixing space 5 allows the driving rotor 2 and the driven rotors 3, 3a to rotate, and is formed in a state in which the positions of the driving rotor 2 and the driven rotors 3, 3a can be restricted.

The driving rotor 2 has a driving rotor body 8 provided with spiral wings 7 (, 7a), and a lower end of the driving shaft S integrally formed on the upper part of the driving rotor body 8 that can penetrate the cover 4 and the head (not shown) side The connecting part of the connection 9. Each driven rotor 3, 3a is only composed of a driven rotor body 11 with a spiral wing 10 (, 10a). The driven rotor body 11 and the driving rotor body 8 are mirror-symmetrical in shape. The spiral wing 10 (, 10a) and the drive The spiral wings 7 (, 7a) of the rotor 2 are wound in opposite directions at the same pitch to mesh the two, whereby the driven rotors 3 and 3a can be rotated in opposite directions as the driving rotor 2 rotates.

The cover 4 is inserted into the containing space 6 to close the upper opening of the mixing space 5, and a through hole 12 for the connecting portion 9 of the driving rotor 2 is formed in the center.

On the upper part of the casing 1, two inflow passages 13 and 13a for the liquid medicine are formed on the upper part of the mixing space 5 to open the outlet, and on the lower part of the casing 1, an outflow passage 14 for the mixed liquid is formed. A liquid medicine inflow path 13 is formed from the inlet on the outer side of the casing 1 to the outlet at the upper center of the mixing space 5, and the liquid medicine can be injected into the driving rotor of the mixing space 5 from the upper part. In the area of 2, the other liquid medicine inflow path 13a is formed from the inlet on the outer side of the housing 1 to the downstream side and branched into 2 paths to the outlets on both sides of the upper part of the mixing space 5. The liquid medicine is injected into the area of the driven rotors 3 and 3a in the mixing space 5 from the upper part, and the driving rotor 2 and the driven rotors 3 and 3a can be mixed with the two liquid medicines in the state of filling the mixing space 5 . [Example 1]

As shown in Figures 1 to 4, the rotary mixer of the present invention has a plastic casing 1, a plastic central drive rotor 2 arranged side by side, and driven rotors 3 on both sides of the same diameter as the drive rotor 2. 3a, and plastic cover 4.

As shown in Figures 5(a) and 5(b), the housing 1 sets the housing space 6 of the cover 4 to have a larger diameter than the long side width of the mixing space 5, and to the center of the mixing space 5. It is a concentric flat cylindrical space. As shown in FIG. 3, the mixing space 5 is formed by overlapping and arranging part of three cylindrical spaces 17, 18, and 18a having a slightly larger diameter than the driving rotor 2 and the driven rotors 3, 3a.

As shown in Fig. 6, the drive rotor 2 has three left-rotating helical elements 21, 21a, 21b with two spiral wing members 20, 20a in a 180-degree right-handed state, and two left-handed states with a 180-degree turn The two right-rotating helical elements 23, 23a of the helical wing members 22, 22a are alternately arranged in series in the direction of the screw axis every 90°, and the integral driving rotor body 8 and the upper part of the driving rotor body 8 are connected Section 9. The spiral wing member 20 of the left-rotating helical elements 21, 21a, 21b and the spiral wing member 22 of the right-rotating helical elements 23, 23a are set as a spiral wing 7, and the left-rotating helical elements 21, 21a, The assembly of the spiral wing member 20a of 21b and the spiral wing member 22a of the right-rotating helical elements 23 and 23a serves as another spiral wing 7a.

As shown in Figure 6, the driven rotor 3, 3a and the driving rotor body 8 of the driving rotor 2 are mirror-symmetrical in shape, and are composed only of the driven rotor body 11, which is composed of only 3 right-rotating helical elements 23, 23a, 23b and 2 left-rotating spiral elements 21, 21a. The assembly of the spiral wing member 22 of the right-rotating helical elements 23, 23a, 23b and the spiral wing member 20 of the left-rotating helical elements 21, 21a as a spiral wing 10, and the right-rotating helical elements 23, 23a, The assembly of the spiral wing member 22a of 23b and the spiral wing member 20a of the left-rotating helical elements 21 and 21a serves as another spiral wing 10a.

Furthermore, it is preferable that the drive rotor 2 uses the drive shaft S to rotate in the opposite direction of the spiral direction of the uppermost element (the left-rotating helical element 21 in the figure). Accompanying this, the driven rotors 3, 3a are also Rotate in the opposite direction of the spiral direction of the uppermost element (the right-rotating helical element 23 in the figure), and the liquid medicine just injected into the housing 1 is temporarily pushed upwards to make the mixing space 5 No air accumulation will occur in the upper part.

A medicinal solution inflow path 13 opens on the outer side of the casing 1 to form an entrance, and a straight horizontal hole with an exit is provided in the upper center of the mixing space 5, in the center of the step 25 between the mixing space 5 and the containing space 6 The opening surface of the recessed portion 26 formed at the opening of the cylindrical space 17 opens to form an outlet. The other medicinal solution inflow path 13a is formed on the inner wall surface of the housing 1 and the central cylindrical space 17 at a location opposite to the formation location of the recess 26 in the boundary step 25 of the mixing space 5 and the containing space 6 Between the recess 27, the inlet is formed on the opposite side of the inlet of one of the medicinal solution inflow passages 13 of the housing 1, and the straight horizontal hole 28 is formed at the outlet of the recess 27, and is separated from the recess 27 in the boundary step 25 The grooves 29, 29a formed so that both sides reach the cylindrical spaces 18, 18a on both sides, and the cover 4 closely contacting the boundary step 25 are formed. In addition, on the opposite surface of the forming surface of the exit of the horizontal hole 28 in the other concave portion 27, a horizontal cross-sectional triangular-shaped diversion protrusion 30 is formed, so that the other liquid medicine flowing from the horizontal hole 28 into the concave portion 27 is easily divided. The mixed liquid outflow path 14 longitudinally forms a nozzle mounting portion 31 protruding downward in the center of the lower part of the casing 1 so that the mixed liquid in the mixing space 5 can be discharged to the outside.

By forming a groove 35 for the O ring 34 in the middle of the through hole 12 of the cover 4, the O ring 34 accommodated in the groove 35 is elastically deformed in close contact with the outer peripheral surface of the connecting portion 9, and the rotor 2 can be driven. The rotatable state keeps the sealing function of the liquid medicine.

The cover 4 is in a state of being inserted into the containing space 6 and is in close contact with the boundary step 25 and the inner surface of the housing 1.

Furthermore, it is preferable that the driving rotor body 8 and the driven rotor body 11 are a composite of a plurality of left-rotating helical elements 21, 21a... and right-rotating helical elements 23, 23a..., for example, although not shown, It is a single body with a spiral wing that is continuously formed integrally in the vertical direction.

Moreover, in the drawing, the mixing space 5 is formed by overlapping and arranging part of the three cylindrical spaces 17, 18, and 18a in parallel. For example, although not shown in the figure, the mixing space 5 can also be set in the driven rotors 3, 3a. The long side width is set to form a small gap between the two ends, and the short side width is set to form a small gap between the driving rotor 2 and the driven rotors 3, 3a.

Next, the function of the rotary mixer of the present invention will be explained. If the driving rotor 2 is rotated, the driven rotors 3, 3a will rotate in the opposite direction, and they will be delivered by the hydraulic pressure delivery means (not shown) connected to the inlets of the liquid medicine inflow passages 13, 13a of the housing 1. The two liquid medicines merge in the mixing space 5. Specifically, one of the medicinal liquids is injected from above into the central cylindrical space 17 from one medicinal liquid inflow path 13 through a recess 26, and through the lateral hole 28 and the other concave section 27 that constitute the other medicinal liquid inflow path 13a The and grooves 29, 29a inject the other liquid medicine from above into the lateral cylindrical spaces 18, 18a. Utilizing the continuous pressure and delivery of the liquid medicine by the liquid medicine delivery means (not shown), the combined liquid medicine passes through the housing of the rotating drive rotor 2 and driven rotors 3, 3a in a state of filling the mixing space 5 The inside of the body 1 flows through the inside of the housing 1 toward the front end. In this process, a total of 3 driving rotors 2 and 2 driven rotors 3, 3a are used to effectively mix the two chemical liquids with high efficiency The ground is hardened, and a chemical reaction occurs to start hardening. The hardened resin is extruded from a discharge nozzle installed at the front end of the housing 1 for various purposes.

The driving rotor 2 and the driven rotors 3, 3a have a shape similar to the internal components of the so-called "static mixer". By setting it in this shape, the mixing efficiency of the mixed liquid is improved. In addition, it is preferable to drive the rotor 2 to rotate in the opposite direction of the spiral direction of the uppermost element (the left-rotating helical element 21 in the figure). Accompanying this, the driven rotors 3 and 3a also move toward the uppermost element. (The right-rotating helical element 23 in the figure) rotates in the opposite direction of the helix direction, whereby the liquid medicine immediately after being injected is used in the housing 1 to temporarily push upward to make the upper part of the mixing space 5 No air accumulation will occur, and the residual liquid medicine after stopping will not flow out to the outside all at once.

In addition, in the rotary mixer of the present invention, it is assumed to be used as a no-clean type that is removed and discarded after the injection of the curable resin is completed, but it can also be used as a cleaning type that is used after washing.

A comparison experiment between the mixer of the present invention (new type mixer) and the conventional mixer was performed. The new type mixer has a drive rotor and two driven rotors with 5 elements, each of which has a diameter of 6mm and a length of 17.5mm. The conventional mixer uses the trade name "WONDERMIXSNP-M" (the diameter of the main rotor is 18mm, the length is 52mm) manufactured by Japan Sosey Industrial Co., Ltd., which is the applicant of this application. The mixing object is an aqueous syrup solution of 6.8 Pa·s. One chemical solution is an aqueous syrup solution colored by iodine-potassium iodide aqueous solution, and the other chemical solution is an aqueous syrup solution after sodium thiosulfate is dissolved. 0.25cc/s totals 0.5cc/s.

The rotation speed of the mixer was set to 100 rpm, and the mixing process in the device was visualized by the decolorization method. As a result, near the 2-liquid inlet of the new type mixer, the mixed liquid became transparent and the mixing was completed, while the conventional mixer was completed after the mixing operation , There is still a little iodine color at the exit, and the mixing is not completed.

Generally speaking, the laminar flow mixing in the mixer is evaluated by the dimensionless mixing time (as the total rotation speed of the product of the mixing completion time and the rotation speed of the device), but since the same flow rate is evaluated in this experiment, the same rotation speed is used For evaluation, the distance from the entrance of the mixer can be used to evaluate the mixing. Therefore, it is considered that the new type mixer is more excellent.

1: shell 2: Drive the rotor 3.3a: driven rotor 4: cover 5: Mixed space 7, 7a: Spiral Wing 8: Drive the rotor body 9: Connection part 10, 10a: spiral wings 11: Driven rotor body 12: Through hole 13, 13a: Inflow 14: Outflow 17, 18, 18a: cylindrical space 20, 20a: Spiral wing member 21, 21a, 21b: Left-rotating spiral elements 22, 22a: Spiral wing member 23, 23a, 23b: Right-rotating helical elements 25: boundary step 27: recess 28: horizontal hole 29, 29a: Slot 30: Shunt protrusion 31: Nozzle installation part 34: O ring 35: Slot A: Two-component mixing injection machine B: head

Fig. 1 is a central longitudinal sectional view of the rotary mixer of the present invention. Figure 2 is a central cross-sectional view of the rotary mixer of Figure 1. Figure 3 is a horizontal cross-sectional end view of the rotary mixer of Figure 1. Fig. 4 is a top view of the state after the cover of the rotary mixer of Fig. 1 is removed. Figure 5 (a) is a central longitudinal section view of the housing. Figure 5(b) is a central cross-sectional view of the housing. Figure 6 is a front view of the driving rotor and the driven rotor. Fig. 7 is a longitudinal sectional view of Embodiment 3 of the rotary mixer of the present invention.

1: shell

2: Drive the rotor

3.3a: driven rotor

4: cover

5: Mixed space

8: Drive the rotor body

9: Connection part

11: Driven rotor body

12: Through hole

14: Outflow

31: Nozzle installation part

34: O ring

35: Slot

Claims (4)

A rotary mixer, which is fixed on the head of a two-liquid mixing injection machine, and is characterized in that: One drive rotor and two driven rotors are housed side by side in the housing, and the upper opening of the housing is closed by a cover. The housing has a mixing space for housing the drive rotor and the driven rotor. On the upper part, two medicinal solution inflow passages are formed in the upper part of the mixing space with openings to form outlets, and an outflow passage for the mixed liquid is formed in the lower part of the housing. The mixing space allows the drive rotor and the driven rotor to rotate, and Formed in a state that can restrict the positions of the drive rotor and the driven rotor, the drive rotor has a drive rotor body with spiral wings, and a connecting portion that penetrates the cover body integrally formed on the upper portion of the drive rotor body, and the slave The moving rotor is only composed of a driven rotor body with spiral wings. The spiral wings and the spiral wings of the drive rotor are wound in opposite directions at the same pitch. The cover body closes the upper opening of the mixing space and forms the connecting portion in the center The through hole enables the drive rotor to mesh with the driven rotor, so that the lower end of the driven rotor is located above the bottom of the mixing space, and the upper end is located below the bottom surface of the cover With the rotation of the driving rotor, the driven rotor can be rotated in the opposite direction at the fixed position. The rotary mixer according to claim 1, wherein: The drive rotor body and the driven rotor body form the right-rotating helical element and the left-rotating helical element in a shape in which the central axis of the spiral is aligned and alternately tandem-integrated. The drive rotor body and the driven rotor body are identical The spiral direction of the elements of the segment is opposite. The rotary mixer according to claim 2, wherein: Make the rotation direction of the driving rotor and the rotation direction of the uppermost spiral element be opposite directions. The rotary mixer according to any one of claims 1 to 3, wherein: One of the above-mentioned liquid medicine inflow paths is formed from the inlet on the outer side of the casing to the outlet of the central opening in the upper part of the mixing space, and one of the liquid medicine can be injected from the upper part into the driving in the mixing space. In the accommodating area of the rotor, the other of the above-mentioned liquid medicine inflow path is formed from the inlet on the outer side of the housing to the downstream side and branched into two paths to the outlets opened on both sides of the upper part of the mixing space. The other liquid medicine is injected from the upper part into the receiving area of the driven rotor in the mixing space.

Images