JPH0611834U - Mixer with liquid addition device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is a rotary joint in which the powder material can be charged and discharged without removing the liquid addition device from the rotary drum, and the wear of the seal material can be known in advance. It is an object to provide a mixer having means. A rotary joint means (e) includes a first fixed barrel (70) having a through hole (69) formed therein, and a first rotary joint (68) rotatably fitted to the outside of the first fixed barrel (70). ,
A second fixed cylinder 78, which is inserted into the concave portion 75 of the first fixed cylinder 70 and then fastened with a bolt or the like, and a second rotary cylinder 80 that is rotatably fitted inside the second fixed cylinder 78. Of the rotary joint 76, so that the powder material 50 can be charged through the charging / discharging port 65 provided in the hollow conical lid 64, and the first rotary cylinder 73 and the second fixed cylinder are also provided. 7
In FIG. 8, lead-out holes 74 and 81 for leading out the leaked powder material to the outside are individually provided, and the powder material leaked into the rotary joint means e is led to the outside from the lead-out holes 74 and 71 to seal. The feature is that the wear of the materials 72 and 83 can be visually recognized at an early stage.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a mixer with a liquid addition device, which is optimal for producing powder soup or the like for use in instant foods, etc. by mixing two or more kinds of powder materials and a small amount of liquid well. .

[0002]

[Prior art]

 Conventionally, for example, when making instant ramen powder soup, salt and edible oil such as sesame oil are first mixed at a predetermined ratio, and the salt is soaked in the cooking oil. The powdered soup was manufactured by stirring and mixing an appropriate amount with the powdered seasoning.

In this case, first, salt and edible oil are put into a stirring device such as a kneader to allow salt to soak the edible oil, and then the stirring device is used to add the edible oil. Since the powder soup was produced by the second step of adding the powder seasoning for mixing with the salt soaked with the mixture and mixing them with a stirrer, the powder material, liquid and Since two steps were always required for mixing, the mixing work was extremely troublesome and time consuming.

In addition, when a liquid and a powder material are mixed, even if the amount of the liquid added is small, a part of the powder material is likely to cause lumps due to absorption of the liquid during the mixing, and after the mixing work is completed, When the lump was present in the powder material taken out from the agitator, the lump was manually crushed each time and mixed with the powder material that had been mixed, so the work was not only inefficient. However, there is a problem that the powder materials cannot be mixed uniformly.

To remedy this problem, mixers have recently been developed with a grinding device for automatically crushing the mass during the mixing operation. This mixer is, for example, one shown in FIG. 6 or FIG. 8. The structure will be described with reference to FIGS. 6 and 7. In FIG. 6 and FIG. In the underframe, by inserting a support shaft 3 projecting at the center of the front and rear ends (left and right direction in FIG. 7) into a bearing 5a at the upper end of a support frame 5 provided on a base 4, the underframe 2 is It can be swingably attached to the support frame 5 like a seesaw.

Reference numeral 6 denotes a rotary shaft that is rotatably arranged by being inserted into a pair of bearings 2 a mounted on the underframe 2 in parallel with the front-back direction of the underframe 2 (the left-right direction in FIG. 6). Friction wheels 7 and 8 are attached to the center of the underframe 2, and a pulley 9 is attached to the center of the underframe. The friction wheels 7 and 8 are thereby rotated. Reference numeral 12 is a crank mechanism provided by drivingly connecting a position on the back surface of the underframe 2 close to the electric motor 10 and an output shaft 16 of the speed reducer 13 installed on the base 4 with a pair of links 14 and 15. When the speed reducer 13 is driven by 17, the underframe 2 is swung by the crank mechanism 12 about the support shaft 3 like a seesaw.

Reference numeral 18 denotes a hollow cylindrical rotary drum, on the outer peripheral surface of which a locking projection 19 is provided in the vicinity of the friction wheels 7 and 8, and on the inner peripheral surface thereof in the circumferential direction as shown in FIG. A plurality of scraping plates 20 are arranged along the length direction of the rotary drum 18 at a predetermined interval. Reference numeral 21 denotes a frustoconical lid that opens and closes one opening a of the rotary drum 18, and the large-diameter portion on the side of the opening a is detachably attached using the rotary drum 18 and a fastening tool 21a such as a bolt. On the side of the opening b having a small diameter, a liquid adding device 22 is attached so as not to rotate together with the rotary drum 18, as shown in FIG.

The liquid adding device 22 is roughly classified into a rotary joint 23, a liquid introducing pipe 24 made of metal which is piped inside and outside the rotary joint 23, and an exhaust for discharging the air in the rotary drum 18 to the outside. A flexible liquid introduction having a length that does not hinder the rotation and swing of the rotary drum 18 is provided to the pipe 25 and the liquid introduction pipe 24 that leads to the outside of the rotary drum 18 via the rotary joint 23. It is constituted by an electromagnetic pump 26 connected via a pipe 24a.

As shown in FIG. 8, the rotary joint 23 has a fixed cylinder 28 having a through hole 27 through which the liquid introduction pipe 24 and the exhaust pipe 25 communicate with each other, and a shaft outside the fixed cylinder 28. A rotary cylinder 30 that is rotatably fitted through a receiving member 29, and the liquid introduction pipe 24 and the exhaust pipe 25 are welded to the through holes 27 at both ends of the rotary cylinder 30 in the axial direction. When the rotary joint 23 is attached to the rotary drum 18, the rotary cylinder 30 is attached to the rotary drum 18. It is detachably attached to the outer flange 32 with a bolt or the like via a connecting plate 33.

Next, as shown in FIG. 8, the tip of the liquid introduction pipe 24 piped in the rotary drum 18 is extended to a substantially upper position in the center of the rotary drum 18, and a nozzle for dropping liquid drops is provided. 34 is attached with the drip opening 35 facing downward. When the electromagnetic pump 26 is operated during the dropping of the liquid droplets, the liquid 37 in the liquid tank 36 is sequentially sucked up at a predetermined interval according to the operation of a drive plunger (not shown), and reaches the dropping nozzle 34 through the liquid introducing pipes 24a, 24. It is fed and discharged intermittently from the drip port 35.

Reference numeral 38 denotes a flat plate-like cover that opens and closes the other opening c of the rotary drum 18, and is detachably attached to the rotary drum 18 by using a fastening tool 21 b such as a bolt like the cover 21. As shown in FIG. 8, a crushing device 39 is attached to the center of the inside of the cover 38 located inside the rotary drum 18, and the crushing device 39 is provided outside the rotary drum 18 and the rotary blade 40. It is roughly configured by the installed driving electric motor 41.

The rotary blade 40 is attached to a rotary shaft 44, which is rotatably supported by a bearing cylinder 42 mounted on the inner surface of the cover 38, via a bearing 43, so as not to come into contact with the dropping nozzle 34. The rotary shaft 44, to which the rotary blade 40 is fixed, is detachably drive-connected to the rotor shaft 41a of the electric motor 41.

In FIG. 6, reference numeral 45 denotes a mount for the electric motor 41, which is installed on a mount frame 46 extending horizontally on the underframe 2. Reference numeral 47 is a rotation stop plate attached to the base end bent portion of the metal liquid introduction pipe 24 led out of the rotary joint 23, and is opposite to the attachment frame 46 of the underframe 2 as shown in FIG. When the rotary drum 18 is rotated, the liquid introduction pipe 24 and the exhaust pipe 25 are connected together with the rotary drum 18 by engaging with a receiving metal fitting 49 having a U-shaped cross section attached to the projecting end of the support arm 48 extending to the side. Prevent it from moving.

Next, the operation will be described. First, the lid 21 is removed from the rotary drum 18, a plurality of kinds of powder materials to be mixed are quantitatively charged through the opening a, and the opening a of the rotary drum 18 is closed. Subsequently, the electric motors 10 and 17 are started, the rotary drum 18 is rotated by the friction wheels 7 and 8, and the crank mechanism 12 swings the support shaft 3 around the spindle 3 like a seesaw. At the same time, the electromagnetic pump 26 and the crushing device 39 are operated to feed the liquid 37 in the liquid tank 36 to the dripping nozzle 34 by the electromagnetic pump 26 and form a water droplet from the dripping port 35. The powder is discharged onto the powder material 50 which is being stirred and mixed in the rotary drum 18. Then, during the stirring and mixing, when a lump is generated in a part of the powder material 50 due to the addition of the liquid 37, the lump rolls in the rotary drum 18 and the rotary blades 40 of the crushing device 39. It collides and is crushed.

Next, when the powder material 50 in the rotary drum 18 is to be taken out after the mixing work, the rotary drum 18 is once tilted upward with the crank mechanism 12 so that the lid 21 side is inclined upward, and the liquid adding device 22 is provided. After removing the lid body 21, the rotary drum 18 is tilted in the opposite direction by the crank mechanism 12 (the lid body 21 side is faced down), and in this state, the rotary drum 18 is rotated at a low speed and the powder material is rotated. 50 is discharged from the opening b.

[0016]

[Problems to be solved by the device]

 However, in the mixer 1 having the above-described configuration, the lid 21 having the liquid addition device 22 is always removed from the rotary drum 18 by loosening the fastening tool 21a each time the powder material is charged and discharged. It was very troublesome and troublesome. Further, when cleaning the rotary drum 18, the crushing device 39 must be removed after disconnecting the connection between the rotary shaft 44 to which the rotary blade 40 is fixed and the rotor shaft 41a of the electric motor 41. In addition, since the liquid adding device 22 and the crushing device 39 both have a considerable weight, a great deal of labor is required for removal and reassembly.

Further, when a plurality of kinds of powder materials are mixed while rotating and rocking the rotary drum 18, if powder material enters the rotary joint 23 and the bearing sleeve 42, the rotary joint 23 and the bearings will be in contact with each other. When the sealing material 23a, 42a in the cylinder 42 is worn and its airtightness is broken, and the powder material enters the bearings 29, 43, there is no means for detecting that the powder material has entered. Therefore, the bearings 29 and 43 receive a large frictional resistance, which may make their rotation difficult.

In view of the above-mentioned various problems, the present invention can easily insert and discharge the powder material without removing the liquid addition device from the rotary drum, and further, the seal material can be removed by the invasion of the powder material. It is an object of the present invention to provide a mixer with a liquid addition device that can detect wear before damage to a bearing such as a ball bearing.

[0019]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention forms a rotary joint means attached to one opening of a rotary drum formed in a hollow cylindrical shape so that a liquid introduction pipe and an exhaust pipe can be individually communicated with each other. The first rotary joint and the second rotary joint that is formed by inserting the rotary shaft to which the rotary blades are attached are formed to have a double rotary structure, and the first and second rotary joints include When the seal material is damaged, a lead-out hole is provided to notify that the powder material has leaked into the rotary joint, and its function is as follows.

[0020]

[Action]

 Since the present invention is configured as described above, the rotary joint attached to one opening of the rotary drum has a double rotary structure so that the liquid adding device and the crushing device can be installed on the rotary drum. Since it can always be installed and removed from the same direction, the powder material can be charged and discharged in the same manner as the powder material formed on the top of the hollow conical lid attached to the other opening of the rotating drum. It can be done smoothly and satisfactorily using the outlet.

Further, since the first and second rotary joints are respectively provided with lead-out holes for leading out the powder material leaked into the joints to the outside, the powder material leaks into the lead-out holes. By doing so, it becomes possible to know in advance that the seal material has worn, and as a result, it is possible to know the replacement time of the seal material early, which allows the seal material to be replaced accurately. It is possible to prevent damage to the bearings that form the main part of the rotary joint.

[0022]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 to 5, the same parts as those shown in FIGS. 6 to 8 are designated by the same reference numerals. The difference between the present invention and the prior art is that the rotary joint means for connecting the rotary member consisting of the rotary drum and the fixed member consisting of the liquid addition device has a double rotation structure, and the liquid addition device and the grinding device are rotated. It is attached to the drum in the same direction.

2 and 3, the basic structure of the mixer main body 1, the drive mechanism thereof, and the rotary drum 18 is the same as that of the conventional one, and thus the description thereof is omitted. In FIG. 2, reference numeral 60 denotes a locking roller that is rotatably engaged between a pair of locking projections 61, 61 provided at the axial center of the outer circumference of the rotary drum 18, and is a base frame near the protrusion of the support shaft 3. It is attached to the upper end of the arm 63 which is inserted in the fixing table 62 mounted on the upper part 2 so as to be removable in the vertical direction, and holds the rotating drum 18 so that it does not slip off from the friction wheels 7 and 8 during operation. . Reference numeral 64 denotes a hollow conical lid, which has a powder material inlet / outlet port 65 opened on the top side thereof, and a proximal end side provided at the opening d of the rotary drum 18 with a fastening member 66 such as a fixing bolt. Attach it detachably. Reference numeral 67 is an opening / closing lid that opens and closes the inlet / outlet port 65 of the lid 64.

Next, the rotary joint means e of the present invention will be described with reference to FIG. In FIG. 1, reference numeral 68 denotes a first rotary joint, which has a first fixed cylinder 70 in which a through hole 69 for individually communicating the liquid introduction pipe 24 and the exhaust pipe 25 is formed, and the first fixed cylinder 70. The first rotating cylinder 73 is rotatably fitted to the outer side of the fixed cylinder 70 via a bearing 71 and a seal member 72. The first rotary cylinder 73 is attached to the cover plate f by radially piercing a plurality of lead-out holes 74 from the axis of the first rotary cylinder 73 toward the outside, and is attached to the cover plate f. One of them (rightward in FIG. 1) is provided with a recessed portion 75, and the other (leftward in FIG. 1) communicates with the recessed portion 75 and has a screw hole 75 a smaller in diameter than the recessed portion 75. Is screwed.

Reference numeral 76 denotes a second rotary joint. A collar plate 77 is fixed to the central portion of the outer periphery of the second rotary joint by welding or the like, and then inserted into the recessed portion 75 bored in the first fixed cylinder 70. The second fixed cylinder 78 is inserted through a bearing 79 in a state where the second fixed cylinder 78, which is fastened with bolts or the like to the opening edge thereof, and the rotary shaft 44, which is equipped with the rotary blade 40 at the tip, are inserted. And a second rotary cylinder 80 that is rotatably fitted into the second fixed cylinder 78. The second fixed cylinder 78 has a lead-out portion that communicates the recessed portion 75 with the outside along the axial direction thereof. A plurality of holes 81 are drilled.

Reference numeral 82 denotes a housing into which a sealing material 83 is inserted, which is screwed into the screw hole 75a of the first fixed barrel 70, and then is covered with the collar plate 77a from the inner side of the rotary drum 18, and the first bolt is used. It is fastened to the fixed cylinder 70. Reference numeral 84 denotes a rotary disc fixed to the rotary shaft 44, which prevents the powder material from directly entering the bearing 79 when the airtightness of the sealing material 83 is broken and the powder material leaks into the concave portion 75. Reference numeral 85 is a fastening member such as a bolt for detachably fastening the cover plate f having the first and second rotary joints 68 and 76 to the flange 86 provided at the periphery of the opening g of the rotary drum 18. In FIG. 1, h is a known meshing joint that joins the rotating shaft 44 and the rotor shaft 41a of the electric motor 41 so that they can come into contact with and separate from each other.

Next, the operation will be described. For example, when making instant ramen powder soup, the rotary drum 18 is first tilted by the crank mechanism 12 so that the lid 64 side faces upward, and the opening / closing lid 67 is removed. After that, salt and plural kinds of powdered seasonings are put into the rotary drum 18 from the charging / discharging outlet 65 opened at the top of the lid 64, the opening / closing lid 67 is attached, and the electric motors 10 and 17 are started. At the same time that the rotary drum 18 is rotated by the friction wheels 7 and 8, the underframe 2 is swung by the crank mechanism 12 about the support shaft 3 like a saw. Therefore, the plurality of powder materials in the rotary drum 18 can be satisfactorily stirred and mixed by the scraping plate 20 and the swinging motion of the rotary drum.

Simultaneously with the start of the mixing operation, the electromagnetic pump 26 and the electric motor 41 for driving the rotary blades 40 are respectively activated, and the electromagnetic pump 26 moves the liquid (eg, edible oil) in the liquid tank 36 into the liquid introduction pipe 24a. , 24 to the dropping nozzle 34 to form a water drop from the dropping port 35, and an appropriate amount is dropped on the powder material 50 being stirred and mixed in the rotating drum 18 and mixed with the powder material 50. Then, during the stirring and mixing, when the liquid (edible oil) 37 is added to cause a lump (lump) in a part of the powder material 50, the lump rolls in the swinging rotary drum 18, and the electric motor 41 collides with the rotating blade 40 rotating at high speed and is crushed.

In this way, while the powder material is being stirred and mixed, the liquid 37 is fed into the rotary drum 18 by the electromagnetic pump 26 and added in an appropriate amount to the powder material, so that the powder material and the liquid 37 are mixed. Can be mixed smoothly and satisfactorily. At this time, the dripping nozzle 34 is arranged at the upper position of the center of the rotary drum 18 so as to drop onto the powder material that is constantly being stirred and mixed, and the drop nozzle 34 of the rotary drum 18 which is in contact with the powder material is placed. Since the inner wall, the lid 64 and the inner surface of the lid plate f are coated with Teflon, the liquid 37 itself is dropped on the place where the powder material is not located, so that the powder material is deposited on the inner wall of the rotary drum 18. There is no possibility that it will adhere to and hinder the stirring, mixing and discharging work. Further, the lump generated in a part of the powder material due to the addition of the liquid 37 can be easily crushed by colliding all the lumps with the rotating blades 40 rotated by the electric motor 41.

Next, when the rotary drum 18 is rotated and rocked as described above to perform the mixing work of the plurality of kinds of powder materials 50 and the liquid 37, the first and second rotary joints 68 are gradually provided. There is a case where the powder material leaks into the bearings 71 and 79, which abrades the sealing materials 72 and 83, breaks the airtightness, and enters the bearings 71 and 79. In this case, in the first rotary joint 68, when the powder material broke through the seal material 72 and leaked into the first rotary joint 68, the leaked powder material was subjected to a centrifugal force of the rotary drum 18 to cause a bearing. Since it is led out to the outside of the first rotary joint 68 through the lead-out hole 74 formed in front of 71, it is possible to reliably prevent the powder material from entering the bearing 71 and damaging it. . Further, in the second rotary joint 76, when the powder material breaks through the seal material 83 and leaks into the second rotary joint 76, the leaked powder material is first directly contacted by the presence of the rotary disc 84. The powder material is prevented from entering the inside of the shaft 79, and the powder material is discharged to the discharge hole 81 side by the wind pressure generated by the rotation of the rotary disc 84, and is discharged from the discharge hole 81 to the outside of the second rotary joint 76. . Further, the powder material staying in the concave portion 75 can be satisfactorily discharged to the outside from the outlet 81 by the swinging motion of the rotary drum.

In this way, when the powder material leaks into the first and second rotary joints 68 and 76, the lead-out holes 74 and 81 and the rotary disc 84 prevent the powder material from entering the bearings 71 and 79. At the same time, the powder material can be satisfactorily led out of the outlet holes 74, 81 to the outside of the first and second rotary joints 68, 76. Therefore, by visually observing the leakage of the powder material, the sealing material 72, It is possible to know quickly and reliably that 83 is worn.

Next, when the powder material in the rotary drum 18 is to be discharged after the mixing work is completed, the rotary drum 18 is tilted by the crank mechanism 12 so that the lid 64 side faces upward, and then the opening / closing lid 67 is closed. , The handle i is operated to disengage from the lid 64, and the handle 64 is removed from the lid 64. After that, as shown by the chain double-dashed line in FIG. 2, the rotary drum 18 is tilted to the opposite side by the crank mechanism 12 (the lid 64 side is faced down), and the rotary drum 18 is rotated in this state. Alternatively, the powder material in the rotary drum 18 is discharged by using a scraping member or the like. When the powder material and the liquid are mixed again, the above operation may be repeated.

When the inside of the rotary drum 18 is washed in order to stir and mix different kinds of powder materials next, the rotary shaft 44 of the rotary blade 40 and the rotor shaft 41 a of the electric motor 41 are meshed with each other. By using h to release the connection, the cover plate f is released from the fixing to the rotary drum 18 by the tightening member 85, so that the rotary joint means composed of the first and second rotary joints 68 and 76. e is removed from the rotary drum 18, and the liquid introducing pipe 24, the exhaust pipe 25, and the rotating blade 40 are pulled out from the rotary drum 18. Then, after removing the opening / closing lid 67 from the lid 64, the hose is washed through the opening g of the rotary drum 18 through the hose. The rotary blade 40, the liquid introduction pipe 24 and the exhaust pipe 25 that are arranged inside the rotary drum 18 are similarly washed with water.

[0034]

[Effect of device]

 According to the present invention, as described above, the rotary joint means is configured as a double rotary structure composed of the first rotary joint and the second rotary joint, so that the liquid adding device and the crushing device are used as the rotary drum. It becomes possible to install in the same direction. As a result, the powder material can be easily charged / discharged from the charging / discharging outlet opening at the top of the hollow conical lid attached to the other side of the rotating drum, and the charging / discharging operation of the powder material can be performed quickly. Can be done. Also, by mounting the liquid adding device and the crushing device in the same direction with respect to the rotating drum, the time, labor, and labor required to remove the rotary joint means during cleaning of the inside of the rotating drum, etc. can be significantly reduced. You can

Further, since the plurality of lead-out holes for leading out the powder material are individually provided in the first and second rotary joints, it is considered that the seal materials mounted in the first and second rotary joints are worn. Since the powder material leaked into the first and second rotary joints can be accurately led out to the outside, it is possible to quickly recognize that the seal material is worn, and It is possible to prevent the leaked powder material from entering the bearings in advance, and reliably prevent the situation where the rotary joint means is damaged and the mixer becomes unusable. Moreover, since the outlet holes are individually drilled, it is possible to disperse the leaked powder material and accelerate the discharge, and it is possible to confirm that the seal material is worn earlier.

Further, since the rotary joint means has a combined structure of the first and second rotary joints, the rotary joint means can be easily disassembled, whereby the worn seal material can be replaced and the rotary joint can be easily replaced. There is also an advantage that maintenance such as repair of means can be performed quickly and easily.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view showing an essential part of a rotary joint means used in a mixer of the present invention.

FIG. 2 is a side view showing the mixer of the present invention.

FIG. 3 is a vertical cross-sectional view showing a rotary drum provided with rotary joint means used in the mixer of the present invention.

FIG. 4 is a perspective view showing a rotary joint means used in the mixer of the present invention.

FIG. 5 is a cross-sectional view showing a state in which a rotary drum equipped with rotary joint means used in the mixer of the present invention is cut along line XX in FIG.

FIG. 6 is a side view showing a conventional mixer.

FIG. 7 is a cutaway front view of a main part of a conventional mixer.

FIG. 8 is a vertical cross-sectional view showing a rotary drum provided with a conventional rotary joint.

[Explanation of symbols]

 1 Mixer main body 12 Crank mechanism 18 Rotary drum 22 Liquid addition device 24 Liquid introduction pipe 24a Liquid introduction pipe 25 Exhaust pipe 26 Electromagnetic pump 34 Drop nozzle 35 Drop port 36 Liquid tank 37 Liquid 39 Grinding device 40 Rotating blade 41 Electric motor 44 Rotation Shaft 47 Rotation stop plate 49 Receiving metal fitting 50 Powder material 64 Lid body 67 Opening / closing lid 68 First rotary joint 70 First fixed cylinder 72 Seal material 73 First rotary cylinder 74 Outlet hole 76 Second rotary joint 78 2 fixed cylinder 80 second rotary cylinder 81 lead-out hole 83 seal material 84 rotary disc e rotary joint means f lid plate

Claims (2)

[Scope of utility model registration request] 1. A liquid in which a powder material and a liquid are agitated and mixed by a hollow cylindrical rotating drum rotatably mounted on an underframe connected to a crank mechanism and swinging through a friction wheel. In the mixer with an adding device, the rotary joint means attached to the hollow cylindrical rotary drum is a double rotary joint comprising a first rotary joint having a liquid adding device and a second rotary joint having a crushing device. A mixer with a liquid addition device characterized by a structure. 2. The first rotary joint and the second rotary joint are provided with a lead-out hole for leading out the powder material leaked into the first and second rotary joints to the outside while the rotary drum is in operation. The mixer with a liquid addition device according to claim 1, wherein each of the mixers is formed individually.