CN103418742A - Sand extracting method in mixed moulding sand measuring device and device thereof - Google Patents
Sand extracting method in mixed moulding sand measuring device and device thereof Download PDFInfo
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Abstract
The invention provides a sand extracting method in a mixed moulding sand measuring device for stably measuring the mixed moulding sand and a device thereof. The sand extracting method is a method for extracting sand form a sand mixer in the mixed moulding sand measuring device. The mixed moulding sand measuring device comprises a guide cylinder and a screw, wherein the guide cylinder is communicated with the sand mixer of the moulding sand, and the screw is rotatably inserted into the guide cylinder. The sand extracting method in the mixed moulding sand measuring device comprises the following steps of: rotating the screw so as to discharging the mixed moulding sand remained in the guide cylinder out of the guide cylinder; and after discharging the mixed moulding sand remained in the guide cylinder out of the guide cylinder, rotating the screw so as to extracting the mixed moulding sand from the sand mixer.
Description
Technical field
The present invention relates to be installed on sand extracting method and device thereof in the molding sand proterties measuring device mixed processed of puddle mixer of molding sand.
Background technology
In the past, be known to following technology: in order to adjust the mulling state of molding sand, extract mixed molding sand processed from puddle mixer in the mulling process, the shape of the mixed molding sand processed that instrumentation extracts, and adjust the mulling state (for example, with reference to patent documentation 1) of molding sand based on this instrumentation result.
Patent documentation 1: Japanese kokai publication hei 9-24438 communique
But, there is following problem in the device of patent documentation 1: when in the mulling process, from puddle mixer, extracting mixed molding sand processed, residual between guide barrel and screw rod have a mixed molding sand processed, when under this state after after a while, this residual molding sand mixed processed is dry and adhere between this guide barrel and screw rod.And, exist this residual and dry molding sand mixed processed to sneak into the problem of extracting sand when extracting next time.Due to this problem, in the device of patent documentation 1, existence can't stably mix the problem of the proterties instrumentation of molding sand processed.
Summary of the invention
The present invention completes in view of the above problems, and its purpose is to provide sand extracting method and the device thereof in a kind of molding sand proterties measuring device mixed processed of the proterties instrumentation that can stably mix molding sand processed.
In order to reach above-mentioned purpose, sand extracting method in mixed molding sand proterties measuring device processed of the present invention is the method for mixed molding sand processed of extracting from puddle mixer in mixed molding sand proterties measuring device processed, should possess guide barrel and screw rod by mixed molding sand proterties measuring device processed, this guide barrel is communicated with the puddle mixer of molding sand, this screw rod is inserted in above-mentioned guide barrel in the mode that can rotate, sand extracting method in above-mentioned mixed molding sand proterties measuring device processed is characterised in that, sand extracting method in above-mentioned mixed molding sand proterties measuring device processed has following operation: above-mentioned screw rod is rotated and will remain in the operation that the molding sand mixed processed in above-mentioned guide barrel is discharged towards the outside of this guide barrel, and the molding sand mixed processed in remaining in above-mentioned guide barrel is after discharge the outside of this guide barrel, makes above-mentioned screw rod rotation and extract the operation of mixed molding sand processed from above-mentioned puddle mixer.
And, sand extracting method in mixed molding sand proterties measuring device processed of the present invention is characterised in that, makes above-mentioned screw rod rotation and discharge place will remain in molding sand mixed processed above-mentioned guide barrel in towards the outside discharge of this guide barrel the time is the inside of above-mentioned mixed molding sand proterties measuring device processed.
And the sand extracting method in mixed molding sand proterties measuring device processed of the present invention is characterised in that, make above-mentioned screw rod rotation and discharge place will remain in molding sand mixed processed above-mentioned guide barrel in towards the outside discharge of this guide barrel the time is above-mentioned puddle mixer.
In addition, sand extracting method in mixed molding sand proterties measuring device processed of the present invention is characterised in that, in the time of remaining in molding sand mixed processed in above-mentioned guide barrel when making the rotation of above-mentioned screw rod and discharge towards above-mentioned puddle mixer, towards above-mentioned puddle mixer, supply with compressed air in to above-mentioned guide barrel.
In addition, sand extracting method in mixed molding sand proterties measuring device processed of the present invention is the method for mixed molding sand processed of extracting from puddle mixer in mixed molding sand proterties measuring device processed, should possess guide barrel and screw rod by mixed molding sand proterties measuring device processed, this guide barrel is communicated with the puddle mixer of molding sand, this screw rod is inserted in above-mentioned guide barrel in the mode that can rotate, sand extracting method in above-mentioned mixed molding sand proterties measuring device processed is characterised in that, sand extracting method in above-mentioned mixed molding sand proterties measuring device processed has the operation that makes above-mentioned screw rod rotation and extract mixed molding sand processed from above-mentioned puddle mixer, all the time the molding sand mixed processed that makes above-mentioned screw rod will remain in above-mentioned guide barrel towards extract the opposite spin while mixing molding sand processed from above-mentioned puddle mixer beyond the operation of extracting mixed molding sand processed from this puddle mixer is discharged towards above-mentioned puddle mixer.
And, in order to reach above-mentioned purpose, the sand extraction element in mixed molding sand proterties measuring device processed of the present invention is characterised in that, the sand extraction element in above-mentioned mixed molding sand proterties measuring device processed possesses: guide barrel, and this guide barrel is communicated with the puddle mixer of molding sand; Screw rod, this screw rod is inserted in above-mentioned guide barrel in the mode that can rotate, and the molding sand mixed processed that will remain in by rotation in guide barrel is discharged towards above-mentioned puddle mixer, and by towards the direction rotation contrary with above-mentioned rotation, from above-mentioned puddle mixer, extracting mixed molding sand processed; And the compressed air supply nozzle, this compressed air supply nozzle is supplied with compressed air towards above-mentioned puddle mixer in to above-mentioned guide barrel.
In the present invention, because the sand extracting method in mixed molding sand proterties measuring device processed is the method for mixed molding sand processed of extracting from puddle mixer in mixed molding sand proterties measuring device processed, should possess guide barrel and screw rod by mixed molding sand proterties measuring device processed, this guide barrel is communicated with the puddle mixer of molding sand, this screw rod is inserted in above-mentioned guide barrel in the mode that can rotate, sand extracting method in above-mentioned mixed molding sand proterties measuring device processed is characterised in that, sand extracting method in above-mentioned mixed molding sand proterties measuring device processed has following operation: thus make above-mentioned screw rod rotation will remain in the operation that the molding sand mixed processed in above-mentioned guide barrel is discharged towards the outside of this guide barrel, and the molding sand mixed processed in remaining in above-mentioned guide barrel is after discharge the outside of this guide barrel, make above-mentioned screw rod rotation and extract the operation of mixing molding sand processed from above-mentioned puddle mixer, therefore, can access the various effects such as proterties instrumentation that can stably mix molding sand processed.
The accompanying drawing explanation
Fig. 1 is the front section view that embodiments of the present invention are shown.
Fig. 2 is the figure observed from the direction of arrow along the A-A line of Fig. 1.
Fig. 3 illustrates the enlarged drawing that uses helical spring screw rod.
Fig. 4 is illustrated in the enlarged drawing of an example that central shaft spirally is wound with the screw rod of plate.
Description of reference numerals:
1: puddle mixer; 2: mixed molding sand proterties measuring device processed; 3: guide barrel; 4: screw rod; 16: the compressed air supply nozzle.
The specific embodiment
Below, based on accompanying drawing, embodiments of the present invention are elaborated.At first, the first embodiment of the present invention is described.In Fig. 1, Reference numeral 1 is the puddle mixer of molding sand (being damp sand in the present embodiment).In addition, in the present embodiment, as puddle mixer 1, use mixer-mill (Mix Muller).And then, at the sidewall of this puddle mixer 1, mixed molding sand proterties measuring device 2 processed is installed.In addition, mixed molding sand proterties measuring device 2 processed also can be installed on puddle mixer 1 in the position beyond sidewall.
Structure at this to this mixed molding sand proterties measuring device 2 processed is elaborated.As shown in Figure 1, be equipped with the guide barrel 3 of cylindric and hollow at the lower outside of the sidewall of above-mentioned puddle mixer 1, this guide barrel 3 is communicated with above-mentioned puddle mixer 1.And then, being inserted with the screw rod 4 that can rotate in this guide barrel 3, the cardinal extremity of this screw rod 4 is linked to motor 5.In addition, in the present embodiment, as screw rod 4, use helical spring.
And then the position of assembling in the guide barrel 3 in puddle mixer 1 outside is equipped with the housing 6 of the tubular of extending along vertical.Said motor 5 is assemblied in the upper outside of the sidewall of this housing 6.And above-mentioned guide barrel 3 is also by the side wall supports of this housing 6.And then the lower square punch of the cardinal extremity of the above-mentioned screw rod 4 in this housing 6 has sand to drop into hole 7, dispose inside and be formed with the scraping body 8 that sand drops into chamber 8a below this sand input hole 7.
And then, being equipped with the cylinder part 9 of hollow below the above-mentioned scraping body 8 in above-mentioned housing 6, the hollow bulb of this cylinder part 9 is sand discharge chambe 9a.In addition, above-mentioned sand drops into chamber 8a and this sand discharge chambe 9a can be communicated with.
And then the lower end of this cylinder part 9 is hidden by sand compression member 10, the inner peripheral surface of the outer peripheral face of this sand compression member 10 and above-mentioned cylinder part 9 slides.And then this sand compression member 10 is linked to the top of lift cylinders 11, this lift cylinders 11 is assemblied in the outside, bottom surface of above-mentioned housing 6.
And, as shown in Figure 2, in the outside of above-mentioned scraping body 8, be fixed with release head 12, can insert the stop part 13 that unloads by the fastening lower end of being fixed in above-mentioned release head 12 of not shown fastening unit.And then above-mentioned release head 12 is linked to the top of walking crosswise cylinder 14, this is walked crosswise cylinder 14 and is assemblied in above-mentioned housing 6.
And, in Fig. 2, below above-mentioned above-mentioned scraping body 8 while walking crosswise cylinder 14 elongation action, being equipped with chute 15, this chute 15 is installed on the sidewall of above-mentioned housing 6.In addition, Reference numeral 16 is towards above-mentioned puddle mixer 1 and to the compressed-air actuated compressed air supply nozzle of the interior supply of above-mentioned guide barrel 3.This compressed air supply nozzle 16 is communicated with compressed air source (not shown) via not shown open and close valve.And this compressed air supply nozzle 16 is by above-mentioned housing 6 supportings.
The action of the device of formation is in the above described manner described.At first, after making puddle mixer 1 action, towards molding sand beginning mulling with adding material (such as water, bentonite, coal dust, starch etc.) of the interior input ormal weight of this puddle mixer 1.As mentioned above, in the present embodiment, as puddle mixer 1, use mixer-mill, therefore, the rotation of the main shaft by puddle mixer 1, roller and scraper plate rotation, carry out the mulling of this molding sand.In addition, omit the diagram of main shaft, roller and the scraper plate of puddle mixer 1.
And then, along with the progress of the mulling of this molding sand, mixed molding sand processed presses on the sidewall of puddle mixer 1 by the above-mentioned roller and the scraper plate that rotate, and beats between guide barrel 3 and screw rod 4.
Secondly, by making the 5 reversion stipulated times of motor, make screw rod 4 in the opposite direction K2(with reference to Fig. 2) rotary compasses fixes time.Thus, the molding sand mixed processed remained in guide barrel 3 is discharged towards the outside of this guide barrel 3.That is, the molding sand mixed processed beaten between guide barrel 3 and screw rod 4 is discharged towards puddle mixer 1.In addition, now, in these screw rod 4 rotations, open the above-mentioned open and close valve be communicated with compressed air supply nozzle 16, utilize this compressed air supply nozzle 16 towards the interior supply compressed air of 1 pair of guide barrel 3 of puddle mixer.
Secondly, stop the rotation of screw rod 4, meanwhile, stop supplying with compressed air from this compressed air supply nozzle 16 thereby close the above-mentioned open and close valve be communicated with compressed air supply nozzle 16.
Secondly, make the 5 forward stipulated times of motor, thus, make screw rod 4 towards positive direction K1(with reference to Fig. 2) rotary compasses fixes time.Like this, the molding sand mixed processed in puddle mixer 1 is by 4 sections cardinal extremities that go out and be transported to this screw rod 4 of screw rod.And then the molding sand mixed processed of the ormal weight transported drops into hole 7 by sand and sand input chamber 8a is put into sand discharge chambe 9a.In addition, now, lift cylinders 11 is positioned at the end that descends.Extract mixed molding sand processed from puddle mixer 1 like this.
Secondly, make to walk crosswise cylinder 14 elongation actions.Thus, spill into molding sand mixed processed on cylinder part 9 by the scraper plate 8b(of scraping body 8 with reference to Fig. 2) scraping, and be recovered to not shown recovery unit by chute 15.And stop part 13 is positioned on cylinder part 9, thus, the upper end of sand discharge chambe 9a is hidden by stop part 13.
Secondly, by making lift cylinders 11 elongation actions, thereby make sand compression member 10 increase, the molding sand mixed processed in sand discharge chambe 9a is compressed.In the present embodiment, carry out thus the CB value (degree of packing value) of instrumentation as mixed molding sand proterties processed.
Secondly, by making lift cylinders 11 contractive action, sand compression member 10 is descended.Then, make to walk crosswise cylinder 14 contractive action, make scraping body 8 return to the top position of cylinder part 9.Secondly, make lift cylinders 11 elongation actions until the upper surface of sand compression member 10 reaches the height identical with the upper surface of cylinder part 9.The piece of the mixed molding sand processed after thus, compressed in sand discharge chambe 9a is pushed out to sand and drops in the 8a of chamber.Then, make to walk crosswise cylinder 14 elongation actions.Thus, be pushed out to sand and drop into the scraper plate 8b scraping of the 8a interior piece that is somebody's turn to do mixed molding sand processed in chamber by scraping body 8, and be recovered to not shown recovery unit by chute 15.
Secondly, by making lift cylinders 11 contractive action, sand compression member 10 is descended.Then, make to walk crosswise cylinder 14 contractive action, make scraping body 8 return to the top position of cylinder part 9.
Secondly, the embodiment as the second embodiment to other describes.The structure of this second embodiment is identical with the first embodiment.And, move also basic identically with the first embodiment, difference is to have the action that a part is appended, and this point is described.
In the second embodiment, as shown in the above-described first embodiment, screw rod 4 is fixed time towards positive direction K1 rotary compasses, extract mixed molding sand processed from puddle mixer 1.And then, after the extraction of this mixed molding sand processed finishes, by making motor 5 reversions, make screw rod 4 K2 rotation in the opposite direction.That is, the molding sand mixed processed remained in guide barrel 3 is discharged towards puddle mixer 1.In addition, now, at this screw rod 4, in the opposite direction in K2 rotation, open the above-mentioned open and close valve be communicated with compressed air supply nozzle 16, utilize this compressed air supply nozzle 16 towards the interior supply compressed air of 1 pair of guide barrel 3 of puddle mixer.
And then, until start the mixed molding sand processed of next time the extraction operation, be screw rod 4 towards positive direction K1 rotation, continue to carry out this screw rod 4 K2 in the opposite direction rotation and supply with compressed-air actuated supply operation from compressed air supply nozzle 16.This point is different from the first embodiment.
That is,, in the second embodiment, thereby rotating the molding sand mixed processed that will remain in guide barrel 3, the opposite direction K2 when making all the time screw rod 4 courts extract mixed molding sand processed from puddle mixer 1 when puddle mixer 1 extracts beyond the operation of mixing molding sand processed discharges towards puddle mixer 1.In addition, in screw rod 4 K2 when rotation in the opposite direction, from compressed air supply nozzle 16, supply with compressed air.
Secondly, the embodiment as the 3rd embodiment to other describes.The 3rd embodiment is not used compressed air supply nozzle 16.This point is the difference with the structure of the first embodiment.Form in addition the structure identical with the first embodiment.
Action to the device that forms by this way describes.At first, after making puddle mixer 1 action, towards molding sand beginning mulling with adding material (such as water, bentonite, coal dust, starch etc.) of the interior input ormal weight of this puddle mixer 1.And then, along with the progress of the mulling of this molding sand, mixed molding sand processed presses on the sidewall of puddle mixer 1 by the above-mentioned roller and the scraper plate that rotate, and beats between guide barrel 3 and screw rod 4.
Secondly, make lift cylinders 11 elongation actions until the upper surface of sand compression member 10 reaches the height identical with the upper surface of cylinder part 9.And then, by making the 5 forward stipulated times of motor, screw rod 4 is fixed time towards positive direction K1 rotary compasses.Thus, the molding sand mixed processed remained in guide barrel 3 is discharged towards the outside of this guide barrel 3.That is, the molding sand mixed processed beaten between guide barrel 3 and screw rod 4 is discharged in the sand input chamber 8a of mixed molding sand proterties measuring device processed 2 inside.
Secondly, make to walk crosswise cylinder 14 elongation actions.Thus, be discharged to this sand and drop into the scraper plate 8b scraping of the interior molding sand mixed processed in chamber 8 by scraping body 8, and be recovered to not shown recovery unit by chute 15.Secondly, by making lift cylinders 11 contractive action, sand compression member 10 is descended.Then, make to walk crosswise cylinder 14 contractive action, make the scraping body return to the top of cylinder part 9.
Secondly, make the 5 forward stipulated times of motor, thus, make screw rod 4 towards positive direction K1(with reference to Fig. 2) rotary compasses fixes time.Like this, the molding sand mixed processed in puddle mixer 1 is by 4 sections cardinal extremities that go out and be transported to this screw rod 4 of screw rod.And then the molding sand mixed processed of the ormal weight transported drops into hole 7 by sand and sand input chamber 8a is put into sand discharge chambe 9a.In addition, now, lift cylinders 11 is positioned at the end that descends.Extract mixed molding sand processed from puddle mixer 1 like this.
Secondly, make to walk crosswise cylinder 14 elongation actions.Thus, spill into the scraper plate 8b scraping by scraping body 8 of molding sand mixed processed on cylinder part 9, and be recovered to not shown recovery unit by chute 15.And stop part 13 is positioned on cylinder part 9, thus, the upper end of sand discharge chambe 9a is hidden by stop part 13.
Secondly, by making lift cylinders 11 elongation actions, thereby make sand compression member 10 increase, the molding sand mixed processed in sand discharge chambe 9a is compressed.In the present embodiment, carry out thus the CB value (degree of packing value) of instrumentation as mixed molding sand proterties processed.
Secondly, by making lift cylinders 11 contractive action, sand compression member 10 is descended.Then, make to walk crosswise cylinder 14 contractive action, make scraping body 8 return to the top position of cylinder part 9.Then, make lift cylinders 11 elongation actions until the upper surface of sand compression member 10 reaches the height identical with the upper surface of cylinder part 9, repeatedly carry out above-mentioned action.In addition, when walking crosswise cylinder 14 elongation action next time, the elongation action by this lift cylinders 11 is pushed out to the piece of mixed molding sand processed that sand drops into chamber 8a by the scraper plate 8b scraping of scraping body 8, and is recovered to not shown recovery unit by chute 15.
In addition, in the present invention, will remain in making screw rod 4 rotation after molding sand mixed processed guide barrel 3 in is discharged to the outside of this guide barrel 3, and make screw rod 4 rotations and extract and mix molding sand processed from puddle mixer 1.Thus, can prevent that the molding sand drying mixed processed remained in guide barrel 3 from adhering between this guide barrel 3 and screw rod 4.And, can prevent from remaining in guide barrel 3 interior and dry molding sand mixed processed and sneak into extraction sand when extracting next time.Therefore, can stably mix the proterties instrumentation of molding sand processed, have advantages of that the instrumentation precision of mixed molding sand proterties measuring device processed improves.
And, in the present invention, as shown in the 3rd embodiment, make screw rod 4 rotation and discharge position will remain in molding sand mixed processed in guide barrel 3 and discharge towards the outside of this guide barrel 3 time is the inside of mixed molding sand proterties measuring device 2 processed.According to this structure, when the molding sand mixed processed in remaining in this guide barrel 3 is discharged towards the outside of this guide barrel 3 and utilize 4 sections of screw rods to go out the molding sand mixed processed puddle mixer 1 in and while extracting mixed molding sand processed both sides all make screw rod 4 towards positive direction K1 rotation, so there is the control that the mixes molding sand proterties measuring device 2 processed simple advantage that becomes.
In addition, in the present invention, in the first embodiment, make screw rod 4 rotation and discharge place will remain in molding sand mixed processed in guide barrel 3 and discharge towards the outside of this guide barrel 3 time is puddle mixer 1.According to this structure, when the molding sand mixed processed by residual and this guide barrel 3 is discharged towards the outside of this guide barrel 3, performance will be wanted to enter from puddle mixer 1 effect that the molding sand mixed processed in guide barrel 3 goes out towards puddle mixer 1 thruster, have advantages of and not there will be unnecessary molding sand mixed processed to enter in guide barrel 3.
In addition, in the present invention, as shown in the second embodiment, there is the operation that makes screw rod 4 rotation and extract mixed molding sand processed from puddle mixer 1, thereby make all the time beyond the operation of extracting mixed molding sand processed from this puddle mixer 1 time screw rod 4 will remain in molding sand mixed processed in guide barrel 3 towards puddle mixer 1 discharge towards extract opposite spin while mixing molding sand processed from puddle mixer 1.According to this structure, mixed molding sand processed is few with the time that the inner peripheral surface of guide barrel 3 contacts, so has advantages of that the wearing and tearing of inner peripheral surface of guide barrel 3 are few.
In addition, in the of the present invention first and second embodiment, when making screw rod 4 thereby K2 rotation will remain in molding sand mixed processed guide barrel 3 in towards puddle mixer 1 discharge in the opposite direction, use compressed air supply nozzle 16 towards the interior supply compressed air of 1 pair of guide barrel 3 of puddle mixer, but be not limited thereto, compressed air supply nozzle 16 can omit.But, when making screw rod 4 thereby K2 rotation will remain in molding sand mixed processed guide barrel 3 in towards puddle mixer 1 discharge in the opposite direction, if use compressed air supply nozzle 16 towards the interior supply compressed air of 1 pair of guide barrel 3 of puddle mixer, the molding sand mixed processed remained in this guide barrel 3 can be discharged towards puddle mixer 1 more efficiently, therefore be more preferably.
And, in the first embodiment of the present invention, by make screw rod 4 in the opposite direction the K2 rotary compasses fix time and will inculcate to the molding sand mixed processed between guide barrel 3 and screw rod 4 towards puddle mixer 1 and discharge.And then, in the 3rd embodiment of the present invention, by making screw rod 4, towards positive direction K1 rotary compasses, fix time and will inculcate the sand input chamber 8a discharge to the molding sand mixed processed between guide barrel 3 and screw rod 4 towards mixed molding sand proterties measuring device processed 2 inside.The afore mentioned rules time of now the two, be that the rotational time of the screw rod 4 of the two there is no particular determination, but, consider will inculcate to the molding sand mixed processed between this guide barrel 3 and screw rod 4 and discharge towards the outside of guide barrel 3 reliably, preferably set into time of obtaining according to following formula by more than.
Screw rod rotational time=((guide barrel length/screw rod spacing)/screw speed) * 5
For example,, in the situation that guide barrel length=200mm, screw rod spacing=40mm, screw speed=600rpm preferably set into screw rod rotational time=((200/40)/600) * 5=(1/24) minute=more than 2.5 seconds.In addition, said screw rod spacing refers to the spacing P shown in Fig. 4 herein.
In addition, in first, second and the 3rd embodiment of the present invention, use helical springs as screw rod 4, but be not limited thereto, as screw rod 4, also can use the screw rod that spirally is wound with plate at central shaft.Fig. 4 illustrates this example that spirally is wound with the screw rod of plate at central shaft, and the P in figure is the screw rod spacing.
And, for the material of screw rod 4, so long as possess the material of rigidity and wearability, get final product, there is no particular determination, such as enumerating metal, synthetic resin etc.And, for the material of guide barrel 3, so long as there is the material of rigidity and wearability, get final product, there is no particular determination, such as enumerating metal, synthetic resin etc.
And, the preferred size of screw rod 4 is shown for example, be in helical spring situation, preferred size is external diameter 50～150mm, screw rod spacing 20～70mm, wire diameter 5～20mm.And, the thickness 5～15mm of the plate that when in the situation that central shaft spirally is wound with the screw rod of plate, preferred size is external diameter 50～150mm, screw rod spacing 20～70mm, central shaft diameter 20～80mm, spirally reel.
And the gap between the interior week of the periphery of screw rod 4 and guide barrel 3 is preferably 1～5mm left and right, the length of guide barrel 3 is preferably below 500mm.And, length for screw rod 4, in puddle mixer 1 side, the preferred state towards 1/5～1/2 times of left and right of the interior outstanding screw rod external diameter of puddle mixer 1 in the front end face from guide barrel 3, in motor 5 sides, the distance till preferably from the cardinal extremity face of guide barrel 3 to the installation end face with respect to motor 5 is 1～2 times of left and right of screw rod external diameter.
And the rotating speed of screw rod 4 (being the rotating speed of motor 5) is preferably 10～40 times of left and right of rotating speed of the main shaft (not shown) of puddle mixer 1.
Claims (6)
1. the sand extracting method in a mixed molding sand proterties measuring device processed, this sand extracting method is the method for mixed molding sand processed of extracting from puddle mixer in mixed molding sand proterties measuring device processed, should possess guide barrel and screw rod by mixed molding sand proterties measuring device processed, this guide barrel is communicated with the puddle mixer of molding sand, this screw rod is inserted in described guide barrel in the mode that can rotate
Sand extracting method in described mixed molding sand proterties measuring device processed is characterised in that,
Sand extracting method in described mixed molding sand proterties measuring device processed has following operation:
Make described screw rod rotation and will remain in the operation that the molding sand mixed processed in described guide barrel is discharged towards the outside of this guide barrel; And
Molding sand mixed processed in remaining in described guide barrel, after discharge the outside of this guide barrel, makes described screw rod rotation and extracts the operation of mixed molding sand processed from described puddle mixer.
2. the sand extracting method in mixed molding sand proterties measuring device processed according to claim 1, is characterized in that,
Make the rotation of described screw rod and discharge place will remain in molding sand mixed processed described guide barrel in towards the outside discharge of this guide barrel the time is the inside of described mixed molding sand proterties measuring device processed.
3. the sand extracting method in mixed molding sand proterties measuring device processed according to claim 1, is characterized in that,
Make the rotation of described screw rod and discharge place will remain in molding sand mixed processed described guide barrel in towards the outside discharge of this guide barrel the time is described puddle mixer.
4. the sand extracting method in mixed molding sand proterties measuring device processed according to claim 3, is characterized in that,
In the time of remaining in molding sand mixed processed in described guide barrel when making the rotation of described screw rod and discharge towards described puddle mixer, towards described puddle mixer, supply with compressed air in to described guide barrel.
5. the sand extracting method in a mixed molding sand proterties measuring device processed, this sand extracting method is the method for mixed molding sand processed of extracting from puddle mixer in mixed molding sand proterties measuring device processed, should possess guide barrel and screw rod by mixed molding sand proterties measuring device processed, this guide barrel is communicated with the puddle mixer of molding sand, this screw rod is inserted in described guide barrel in the mode that can rotate
Sand extracting method in described mixed molding sand proterties measuring device processed is characterised in that,
Sand extracting method in described mixed molding sand proterties measuring device processed has the operation that makes the rotation of described screw rod and extract mixed molding sand processed from described puddle mixer, makes all the time the opposite spin of described screw rod when from described puddle mixer extraction, mixing molding sand processed in the time of beyond the operation of extracting mixed molding sand processed from this puddle mixer and the molding sand mixed processed that will remain in described guide barrel is discharged towards described puddle mixer.
6. the sand extraction element mixed in molding sand proterties measuring device processed, is characterized in that,
Sand extraction element in described mixed molding sand proterties measuring device processed possesses:
Guide barrel, this guide barrel is communicated with the puddle mixer of molding sand;
Screw rod, this screw rod is inserted in described guide barrel in the mode that can rotate, and the molding sand mixed processed that will remain in by rotation in guide barrel is discharged towards described puddle mixer, and by towards the direction rotation contrary with described rotation, from described puddle mixer, extracting mixed molding sand processed; And
The compressed air supply nozzle, this compressed air supply nozzle is supplied with compressed air towards described puddle mixer in to described guide barrel.
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| JP2012-112350 | 2012-05-16 | ||
| JP2012112350A JP2013237086A (en) | 2012-05-16 | 2012-05-16 | Method of sampling sand in device for measuring properties of kneaded sand and device for the same |
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| CN103418742B CN103418742B (en) | 2016-06-15 |
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| CN106353188A (en) * | 2016-08-29 | 2017-01-25 | 宁夏共享模具有限公司 | Detection method for casting mould strength |
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| JP2018134679A (en) | 2017-02-24 | 2018-08-30 | 新東工業株式会社 | Water injection kneading system for green molding sand |
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| JP2013237086A (en) | 2013-11-28 |
| CN103418742B (en) | 2016-06-15 |
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