WO2011132290A1 - Two-liquid mixing type injector - Google Patents

Abstract

Disclosed is a two-liquid mixing type injector wherein a torque transmission means which provides torque to a rotary mixer from a drive unit is housed at an intermediate position (7a) of a through area (7) in a head unit (1), where said torque transmission means is a magnetic coupling (25) formed by an outer member (24) equipped to the end part of a drive shaft (6) and an inner member (23) equipped to the end part of a mixing rotor (5). A covered cylindrical partition (26) is integrally formed between the inner member (23) and the outer member (24) on the base of the intermediate position (7a). Channels (9, 9a) which supply liquid medicine inside the rotary mixer (3) are formed on the lower surface of the head unit (1) and provided with outlets (10, 10a) formed as openings thereupon, and said channels are formed continuously with receiving openings (8, 8a) of liquid medicine supply means (2, 2a) which are formed so as to provide openings from the head unit (1). Only one of the channels (9) is formed so as to connect to a lower position (7b) of the through area (7), and as the outlet (10) of the one channel (9) is the lower opening part of the lower position (7b), liquid medicine can be completely prevented from entering in the direction of the drive unit (4) without provision of sealing material.

Description

Two-component mixing type injection machine

The present invention relates to a two-liquid mixing type injector that mixes and discharges two kinds of chemicals in casting, molding, painting, and the like.

Conventionally, in such a two-component mixing type injector, a rotary mixer having a mixer pipe mounted rotatably on a mixer pipe is attached to the lower portion of the head section, and the driven part of the head section having a tip of the mixer slot is mounted. A drive fitting portion for the fitting portion is provided, and a pair of chemical solution supply means are arranged on both sides of the head portion so as to face each other, and the head portion is formed continuously with the receiving port of the pair of chemical solution supply means and the receiving port. Some outlets have a channel having an opening formed in the lower surface of the head portion (see, for example, Patent Documents 1 and 2).

In this two-liquid mixing type injector, two kinds of chemical liquids are supplied from both chemical liquid supply means to the receiving port of the head part at respective set pressures, and are discharged from the outlet through the flow path into the mixer pipe. Then, while mixing near the base end of the mixer pipe, the Mixing Groter rotates in the Mixer Pipe, and the combined chemicals move to the tip side by the Mixing Groter in the Mixer Pipe, and in the process, the two types of chemicals gradually It is mixed and chemically reacted to start curing, and a curable resin having a curing degree corresponding to the pot life (usable time) is discharged from the tip of the mixer pipe, and is used in various applications.

Japanese Patent No. 2750665 JP 2001-198495 A

However, in the above prior art, the torque transmission means from the driving side to the driven side is a contact type between the driving fitting portion on the head side and the driven fitting portion of the mixing glower. A seal member such as an O-ring or packing is required between the insertion hole of the Mixin Groter, but it is assumed that the chemical solution will deteriorate due to friction with the chemical solution or the Mixin Groter, and the chemical solution will enter the drive side. There was a problem that had to be solved.

The present invention is based on the above-described prior art, and in view of problems such as problems associated with deterioration of the seal member due to the contact type torque transmission means, the torque transmission means is mounted on the base end portion of the Mixin Groter The magnet coupling is composed of an outer member attached to the distal end of the drive shaft, and the inner member is detachably attached to the base end of the Mixin Groter so that it cannot rotate with respect to the Mixin Groter in the mounted state. A lidded cylindrical partition located between the inner member and the outer member is integrally formed on the bottom surface of the intermediate portion in the penetrating portion where the magnet coupling is accommodated, and both sides of the head portion below the intermediate portion are integrally formed. An opening for the chemical solution supply means is formed in the opening, and a flow path is continuously formed in the reception port. The lower opening of the lower part is used as an outlet of one channel, and the outlet of the other channel is formed as an opening on the lower surface of the head part. By making it possible to supply two types of chemical liquids in the rotary mixer, it is possible to completely prevent the chemical liquid from entering the drive unit without providing a seal member, thereby solving the above-mentioned problems.

In short, in the present invention, the torque transmission means is a magnet coupling composed of an inner member attached to the base end portion of the Mixing Groter and an outer member attached to the distal end portion of the driving shaft. Torque can be transmitted in a non-contact manner, and the inner member is detachably attached to the base end of the Mixing Groter so that it cannot be rotated with respect to the Mixing Groter in the mounted state. The rotary mixer can be made detachable, and the lid-shaped cylindrical partition located between the inner member and the outer member is integrally formed on the bottom surface of the intermediate part in the penetrating part. Can be completely isolated from the motor on the drive side, and the seal on the driven side is no longer necessary. It is possible to make a maintenance-free configuration by preventing the seal failure due to the above, and further, in addition to forming openings for receiving the chemical solution supply means on both sides of the head portion below the intermediate portion, A flow path is continuously formed, and one flow path is formed so as to communicate with a lower portion in the penetrating portion, and a lower opening of the lower portion is used as an outlet of one flow passage, and an outlet of the other flow passage Since an opening is formed in the lower surface of the head part and two kinds of chemicals can be supplied into the rotary mixer from two outlets, only one of the chemicals can be filled into the partition wall to prevent mixing of the two liquids. The maintenance-free effect on the part side can be further improved.

In addition, an inner plate is provided below the end face of the Mixing Groter in the mixer pipe, and a conical shaft support pin projects from the center of the upper surface of the inner plate, and the mixed liquid passes through the outer periphery of the shaft support pin. A hole is formed, a conical concave shaft support recess is formed in the center of the tip surface of the Mixin Groter, a conical shaft support pin projects from the bottom surface of the lid of the partition wall, and a conical concave surface in the center of the base end surface of the Mixin Groter Since the shaft support concave part is formed, the center of rotation can be swung without losing the ease of attaching and detaching the rotary mixer to the head part, and without providing a radial bearing between the penetration part and the mixer pipe. It can be rotated so that it has no practical effect.

It is a partial cross section front view of the 2 liquid mixing type injection machine concerning the present invention. It is a principal part enlarged view of FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. FIG. 3 is a sectional view taken along line BB in FIG. It is principal part sectional drawing of the 2 liquid mixing type injection machine of a chemical | medical solution injection | pouring process.

An embodiment of the present invention will be described below with reference to the drawings.
In the two-liquid mixing type injector according to the present invention, basically, as shown in FIG. 1, means 2 and 2 a for supplying two kinds of chemical solutions to both sides of the head part 1 are arranged in an opposed state. The rotary mixer 3 is arranged at the lower part of the head part 1, and the drive part 4 of the rotary mixer 3 is arranged at the upper part. The drive part 4 is connected to the mixing mixer 5 on the rotary mixer 3 side in the head part 1. Means for transmitting torque of the drive shaft 6 on the side is provided.

As shown in FIGS. 2 and 4, the head portion 1 has a penetrating part 7 that vertically penetrates in the center in the center, and the penetrating part 7 has the above-mentioned torque transmission means in the enlarged intermediate part 7 a. The upper part of the above-mentioned mixing rotator 5 is inserted into the lower part 7b, and the drive shaft 6 is inserted into the upper part 7c.
In addition, the inlets 8 and 8a of the chemical solution supply means 2 and 2a are formed at both sides of the head portion 1 below the intermediate portion 7a, and the channels 9 and 9a are continuously connected to the inlets 8 and 8a. The outlets 10 and 10a of the flow passages 9 and 9a are formed on the lower surface of the head portion 1 so that two kinds of chemicals can be supplied into the rotary mixer 3.

Specifically, one channel 9 is formed so as to communicate with the lower part 7b in the penetrating part 7 via a groove 11 formed in the lower part 7b, and the outlet 10 is provided below the lower part 7b. The other channel 9a is formed as an opening, and is bent in an inverted L shape without communicating with the lower portion 7b.
The head portion 1 has a head portion main body 12 and a mixer head 13 that is detachably attached to the lower portion of the head portion main body 12. The concave portion formed on the lower surface of the head portion main body 12 and the mixer head The intermediate portion 7a is formed with the upper surface of 13, and an upper portion 7c is formed in the head body 12, and a lower portion 7b is formed in the mixer head 13.

As shown in FIG. 2, the rotary mixer 3 includes a mixer pipe 14 that fixes the base end side to the lower portion of the head portion 1, and the mixer grotter 5 that is rotatably mounted in the mixer pipe 14. Then, the base end side of the mixin grouter 5 is protruded upward from the base end of the mixer pipe 14 so as to pass through the lower portion 7a of the penetrating portion 7 of the head portion 1, and the tip end side of the mixer pipe 14 is stepped 15 The discharge nozzle portion 16 is opened at the lower end by reducing the diameter via the nozzle.
An inner plate 17 is provided in the mixer pipe 14, the outer peripheral side of the inner plate 17 is abutted and fixed to the step portion 15, and a conical shaft support pin 18 is projected from the center of the upper surface. Further, the mixed solution passage holes 19, 19a,... Are formed in the outer peripheral portion, and the conical concave concave support shaft 20 is formed in the center of the tip surface of the mixin grouter 5.

The drive unit 4 includes an electric drive motor 21 and the drive shaft 6 connected to the tip of the output shaft 22 of the drive motor 21 so that power can be transmitted. The drive shaft 6 is a bearing. Etc., and is rotatably supported in an upper part 7b in the penetrating part 7 of the head portion 1.

As shown in FIGS. 1 to 3 and 5, the torque transmission means includes an inner member 23 attached to the base end portion of the Mixin grower 5, and an outer member 24 attached to the distal end portion of the drive shaft 6. And a lid-shaped cylindrical partition wall 26 located between the inner member 23 and the outer member 24 is integrally formed on the bottom surface of the intermediate portion 7a (the top surface of the mixer head 13). A conical shaft support pin 27 projects from the lower surface of the lid portion 26, and a conical concave surface support shaft recess 28 is formed at the center of the base end surface of the mixin grouter 5.
The inner member 23 is detachably attached to the base end portion of the mixin grouter 5 and is non-rotatable with respect to the mixin grouter 5 in the mounted state. It is possible to insert and remove the base end portion of the Mixin Groter 5 from below 29, through the keyway 30 in the central hole 28, and through the receiving step portion 31 that contacts the base end portion of the Mixin Groter 5 with the lower surface of the inner member 23. The key 32 is formed on the side surface of the reduced diameter portion.

The magnet coupling 25 is a non-contact type torque transmission means. Specifically, the inner magnet on the outer peripheral surface of the inner member 23 and the outer magnet on the inner peripheral surface of the outer member 24 are arranged opposite to each other in the radial direction. The outer member 24 is used as a driving side, and a rotational force is applied. By the attraction force and the repulsive force between the inner magnet and the outer magnet, torque is transmitted to the driven inner member 23 in a non-contact manner to rotate the mixing grouting device 5. I have to.

Next, the operation of the two-liquid mixing type injector according to the present invention will be described (see FIG. 5).
First, only one chemical solution is fed from one chemical solution supply means 2 into the partition wall 26 in the intermediate portion 7a via the receiving port 8, the flow path 9 and the lower portion 7b, and in the partition wall 26 and the lower portion 7b. After filling only one chemical solution above the flow path 9, two kinds of chemical liquids are supplied from both the chemical supply means 2, 2 a to the receiving ports 8, 8 a of the head unit 1 at the respective set pressures. , 9a, are supplied into the mixer pipe 14 from the outlets 10 and 10a and merge.

Due to the operation of the drive motor 21, the mixin grower 5 rotates in the mixer pipe 14 via the drive shaft 6 and the magnet coupling 25, and the combined chemicals are discharged to the discharge nozzle section 16 side by the mixin grower 5 in the mixer pipe 14. It moves, gradually mixes, starts curing by a chemical reaction, and is discharged from a nozzle 33 attached to the discharge nozzle portion 16.

Then, the rotary mixer 3 is removed from the head unit 1 and discarded or washed, but a new or washed rotary mixer 3 is mounted on the head unit 1, but the two liquids are not mixed on the head unit 1 side. Cleaning on the part 1 side is not necessary.
At the time of mounting, the protruding portion of the mixing grouter 5 in the rotary mixer 3 is inserted into the lower portion 7 b from the lower opening, and the key 32 on the proximal end side of the mixing grouting device 5 is inserted into the key groove 30 of the central hole 29 of the inner member 23. At the same time, the base end portion of the mixin grouter 5 is inserted from below the central hole 29 and lifted by bringing the receiving step portion 31 into contact with the lower surface of the inner member 23 and lifted. A shaft support pin 27 on the side of the partition wall 26 is inserted into the inside, and both ends of the mixin grouter 5 are pivoted so that the mixin grouter 5 can rotate without shaking the shaft.

The two-liquid mixing type injection machine according to the present invention is called, for example, potting and is used as a filling application in which a certain amount of resin or a resinous cosmetic is filled in a transformer, a clutch, a small bottle or the like, and is called sealing. Sealing application to seal, called coating, application application to coat resin on the substrate or IC chip for protection of IC chip, casting application called injection, pouring into mold or pouring It is called Adhesive, is used for bonding two articles, or is called Dotting, and is used for drip applications where a drop is dropped onto a plate material, bolt or the like to lock or mark.

DESCRIPTION OF SYMBOLS 1 Head part 2,2a Chemical solution supply means 3 Rotary mixer 4 Drive part 5 Mixing grouter 6 Drive shaft 7 Through part 7a Middle part 7b Lower part 7c Upper part 8, 8a Inlet 9, 9a Flow path 10, 10a Outlet 17 Inner plate 18 Axis pin 19, 19a… Pass hole 20 Axis recess 23 Inner member 24 Outer member 25 Magnet coupling 26 Bulkhead 27 Axis support pin 28 Axis recess

Claims (2)

A pair of chemical solution supply means is disposed on both sides of the head portion in an opposing state, a rotary mixer is disposed at the lower portion of the head portion, a driving unit for the rotary mixer is disposed at the upper portion, and the head portion is vertically passed through the head portion. A base part of the mixer mixer on the rotary mixer side is inserted in the lower part of the penetrating part, and the drive shaft on the drive unit side is inserted in the upper part, and the rotary mixer is inserted in the intermediate part of the penetrating part. A means for transmitting the torque of the drive shaft on the drive unit side is accommodated in the mixin groter on the side, and the torque transmission means is mounted on the inner end member mounted on the base end of the mixin grouter and on the distal end portion of the drive shaft The magnetic coupling is composed of an outer member, and the inner member is mixed with the base end of the Mixing Groter in the mounted state. Removably mounted so as not to rotate with respect to the grouter, a lidded cylindrical partition located between the inner member and the outer member is integrally formed on the bottom surface of the intermediate portion, and the intermediate portion in the head portion On both sides of the lower part, an opening for receiving the chemical solution supply means is formed, and a channel is continuously formed in the receiving port, and one channel is formed so as to communicate with the lower part of the penetrating part. In addition, the lower opening of the lower part is used as the outlet of one flow path, and the outlet of the other flow path is formed in the lower surface of the head part, so that two types of chemical solutions are supplied into the rotary mixer from the two outlets. A two-component mixing type injector characterized by being made possible. In the mixer pipe, an inner plate is provided below the tip surface of the Mixin Groter. A conical shaft support pin projects from the center of the upper surface of the inner plate. A conical concave shaft support recess is formed in the center of the tip surface of the Mixin Groter, a conical shaft support pin projects from the bottom surface of the partition lid, and a conical concave shape is formed in the center of the base end surface of the Mixin Groter. 2. The two-liquid mixing type injection machine according to claim 1, wherein a shaft support recess is formed.

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