外文翻譯--混砂機(jī)

1、<p><b>　　英文原文</b></p><p><b>　　英語原文</b></p><p>　　Sand mixer</p><p><b>　　Abstract:</b></p><p>　　A foundry sand mixer for mixing a

2、nd dispensing silica or green sand and their additives through the enclosed longitudinal belt conveyor mechanism having a plurality of openings in the top communicating with a first feeder disposed above the enclosed lon

3、gitudinal belt conveyor mechanism and including a pair of openings in the bottom. The first feeder includes an auger-type conveyor and a sand weir communicating with the most upstream opening in the first feeder. A first

4、 hopper for containing sili</p><p>　　Inventors:Frankie, Donald M. (1599 Gull La., Mound, MN, 55364)</p><p><b>　　Claims: </b></p><p>　　1. In a foundry sand mixer for mixi

5、ng and dispensing silica or green sand and their additives, the combination comprising: </p><p>　　(a) a support frame pivotal about a vertical axis and having a platform extending radially therefrom; </p&

6、gt;<p>　　(b) an enclosure including an enclosed longitudinal belt conveyor mechanism extending above said platform and having a plurality of openings in the top of the enclosure communicating with said belt convey

7、or mechanism; </p><p>　　(c) first feeder means disposed above and at the most upstream location of said enclosed longitudinal belt conveyor mechanism, said first feeder means having a bottom and converging s

8、loping sides communicating near the bottom with an auger-type conveyor, and having a pair of openings longitudinally separated in the bottom thereof feeding said belt conveyor;</p><p>　　(d) a sand weir commu

9、nicating with the most upstream opening of said pair of openings in said first feeder means, said sand weir disposed above said longitudinal belt conveyor mechanism for dispersing sand on said belt conveyor mechanism; &l

10、t;/p><p>　　(e) a first hopper for containing silica sand disposed over the upstream portion of said first feeder means;</p><p>　　(f) a second hopper for containing green sand disposed downstream fr

11、om said first hopper and over said first feeder means; </p><p>　　(g) selective valve means disposed at the bottom of each of said first and second hoppers permitting the flow of sand through only one of said

12、 hoppers at any time or preventing the flow of any sand from said hoppers; </p><p>　　(h) and control means operably connected to said selective valve means for selecting one of said two sands or neither to b

13、e dispensed onto said belt conveyor.</p><p>　　2. The structure set forth in claim 1 including: </p><p>　　(i) a plurality of second feeder means disposed above said belt conveyor mechanism and at

14、 a downstream location from said first feeder means, each of said plurality of second feeder means having a bottom and converging sloping sides communicating near the bottom with an auger-type conveyor and having an open

15、ing in the bottom thereof feeding said belt conveyor; </p><p>　　(j) a constant speed mixer disposed on said platform and arranged to receive granular and liquid materials, mix the materials and deliver the m

16、ixed materials at a discharge opening, said belt conveyor communicating with said mixer; </p><p>　　(k) and a plurality of pump means connected to a plurality of fluids and communicating with said mixer.</

17、p><p>　　Description:</p><p>　　This invention relates to the field of mixers and more particularly to the field of foundry sand mixers for mixing silica or green sand and their additives. </p>

18、<p>　　BACKGROUND OF THE INVENTION </p><p>　　While the art of mixing foundry sand per se through a mechanical process is generally known, there are attendant problems in attempting to use the same equi

19、pment for mixing green sand and its additives as generally might be used in a mixer using silica sand and its additives. Because of the inherent differences in the materials to be mixed and passed through the machine, th

20、e practice has generally been to use separate machines for each of the different foundry sand materials and processes. </p><p>　　SUMMARY OF THE INVENTION </p><p>　　The embodiments of this improv

21、ement invention makes it possible to combine the necessary equipment into a single machine to mix either green sand or silica sand and their additives. </p><p>　　Various means have been attempted to mix gree

22、n sand which requires the addition of such other granular and dry ingredients as fire clay, bentonite, sea coal, pitch, wood flour and the like, along with an appropriate mixture of water. On the other hand, silica sand,

23、 which may also be known as a "no-bake" sand, is generally mixed with dry granular materials such as chromite and ferric oxide and several liquid ingredients which may include certain chemicals. Because certain

24、 green sand molds may be </p><p>　　Various means have been devised in the past to make a slurry of the additives and add them to the green sand but the mechanism does not prove to be useful in working with b

25、oth types of molding sand. One such mechanism is that disclosed in U.S. Pat. No. 3,070,858 issued to J. S. Beacon. </p><p>　　It is also known that certain silica sand or "no-bake" sand mixers have

26、been available but are not operable to run green sand through them and mix the green sand in the manner generally attributable to silica sand. One such disclosure of a mechanism of this type is found in U.S. Pat. No. 3,6

27、82,448 isued to Kedzior et al. </p><p>　　The present invention is an improvement upon the mechanism disclosed in my earlier U.S. Pat. No. 4,140,246 entitled PROPORTIONAL CONTROL SYSTEM FOR FOUNDRY SAND MIXIN

28、G DEVICE. </p><p>　　It is therefore a general object of the present invention to provide an improvement in foundry sand mixing equipment. </p><p>　　It is a more specific object of this invention

29、 to provide a foundry sand mixer that will mix either silica sand or foundry green sand and their additives. </p><p>　　It is yet another object of this invention to provide a foundry sand mixer in which eith

30、er silica sand or foundry green sand is controlled by a valve mechanism selectively depositing one or the other on a belt conveyor for proper mixing. </p><p>　　These and other objects and advantages of the i

31、nvention will more fully appear from the following description, made in connection with the accompanying drawings, wherein like reference characters refer to the same or similar parts throughout the several views, and in

32、 which: </p><p>　　FIG. 1 is a perspective view of the invention; </p><p>　　FIG. 2 is a schematic diagram of the mixer control circuit; </p><p>　　FIGS. 3A and 3B are schematic diagra

33、ms of the drive circuits for all of the variable speed motors driving feeders and pumps in the invention; </p><p>　　FIG. 4 is a diagram of the control panel on the end of the mixer; and </p><p>

34、　　FIG. 5 is a schematic diagram of the selective sand valve. </p><p>　　PREFERRED EMBODIMENT </p><p>　　Reference is now made to FIG. 1 wherein the foundry sand mixer 10 is disclosed. The mixer is

35、 secured to a base 11 that has a vertical axis about which a housing 12 pivots, housing 12 having a cantilever beam 13 extending radially therefrom. At the upstream end of the mechanism, a bracket 14 supports one end of

36、an enclosed conveyor mechanism 15 and the other end of conveyor mechanism 15 is supported by a chute 16 that acts as a support bracket that is indirectly secured to beam 13. </p><p>　　A belt conveyor 17 is d

37、isposed within the housing 15 and is supported for movement by a plurality of horizontal transversely oriented rollers 20. A direct current drive motor 21 is connected to the downstream end roller to drive the belt conve

38、yor mechanism 17. </p><p>　　Disposed above the enclosed conveyor 15 is a first feeder 22 which is elevated slightly above the conveyor enclosure 15. Feeder 22 is in the nature of a container having sloping s

39、ides converging at the bottom with an auger-type conveyor 23 driven by a variable speed motor 24. Feeder 22 has its sides extending upwardly at an angle of approximately 30 degrees with a vertical and it has been found t

40、hat if the sides extend outwardly so that the angle with the vertical is approximately 45 degrees, fl</p><p>　　Silica sand hopper 26 is disclosed as being generally rectangular in shape having a common side

41、32 which acts as a separator with another hopper 33 that is used to contain green sand. The sides of the hoppers slope downwardly in a converging manner and are terminated in a pair of chutes 34 and 35. </p><p

42、>　　A selective valve 36 is disposed across the openings of chutes 34 and 35 so that upon movement to the right (as seen in FIG. 1) sand will flow from hopper 26 through chute 34 into first feeder 22 but block flow of

43、sand through chute 35 and upon movement to the left, valve means will permit flow of green sand from hopper 33 through chute 35 but block the movement of silica sand. In other words, either silica sand or green sand is a

44、dmitted during the two extreme movements and while the valve is in</p><p>　　A solenoid actuated valve 41 is connected to a source of pressurized air 42 through a pneumatic line 43. The source of air under pr

45、essure is generally 100 psi for good operating conditions. </p><p>　　A pair of pneumatic lines 44 and 45 connect solenoid valve 41 with air cylinder 37 and the solenoid coils are controlled through an electr

46、ical circuit connected to the solenoid valve 41. A 110 volt source is connected through a common lead 46 to solenoid valve 41 and one coil has its return current path through a conductor 47 and one terminal of a single p

47、ole double throw switch 50. The switch blade is connected to the other terminal of the 110 volt source through a conductor 51. Another coil in</p><p>　　A second feeder 53 is disposed above the conveyor enclo

48、sure 15 downstream from first feeder 22. Second feeder 53 has the same general shape and configuration as that of first feeder 22 and includes a conveyor auger 54 driven by a variable speed motor 55 through a pair of spr

49、ockets 56 and 57 and a chain 58. Second feeder 53 has an opening in its bottom near the downstream end of auger conveyor 54 which is coupled to the housing 15 through a tubular member 60. </p><p>　　Disposed

50、above the auger conveyor 54 is a stirrer 61 that is in the form of shaft extending parallel to the shaft of the auger conveyor 54 and having a plurality of branches or arms extending therefrom, which when the assembly is

51、 turned tends to break up any bridges or lumping of materials such as bentonite or sea coal. A pair of sprockets and a chain drive stirrer 61 form the shaft of auger conveyor 54. </p><p>　　A third feeder 62

52、is disposed downstream from second feeder 53 and is generally identical for the most part to that of second feeder 53. Feeder 62 also contains an augur-type conveyor 63 driven by variable speed motor 64 with a tubular se

53、ction 65 connecting the opening in the bottom of the feeder through an opening in the top of conveyor housing 15. </p><p>　　Disposed at the bottom of the housing or compartment 12 is a pair of liquid contain

54、ers 70 and 71 which may contain chemicals or may contain water, depending upon the type of additive to be made to the particular sand which is being mixed. Container 70 is connected to a pump 72 through a pipe 73 communi

55、cating with container 70 and an outlet line 74 is connected to pump 72. In a similar manner, a pump 75 is connected to fluid in container 71 through a pipe 76 and the outlet of pump 75 is dispensed</p><p>　　

56、The variable speed motors described are conventional variable speed direct current motors and are generally 3/4 H.P. in size. Air cylinder 37 is approximately one and one-half inches in diameter and has a six inch stroke

57、 and is manufactured by Lynair under Model No. AB102-6 whereas the solenoid valve 14 is of the type manufactured by Novi, Model 25C4E. </p><p>　　A cylindrical mixer 90 is secured to beam 13 by suitable means

58、 and has a plurality of paddles 91 carried by a shaft 92 that does the actual mixing. Shaft 92 is connected to a constant speed motor 93 by suitable means such as a coupling or clutch. Chute 16 receives materials from co

59、nveyor 17 through an opening formed in the downstream end beyond the end of conveyor 17. The lower end of chute 16 opens into a segment of mixer 90 at the upstream side thereof. Fluid-carrying pipes 74 and 77 are also &l

60、t;/p><p>　　In FIG. 2, the mixer motor drive circuit is disclosed in which a three phase 220 volt power line applies power through lines L1, L2 and L3 to mixer motor 93 through three relay contacts, all designat

61、ed mixer starter contacts M1. The 220 volt line is connected to a transformer TR1 where a voltage reduction takes place in the secondary and 110 volt single phase alternating current is obtained and is applied to one lin

62、e as a common or neutral line 100. A mixer motor relay M1 has its coil connected </p><p>　　Electrical line 101 is extended in a parallel path through another set of relay contacts M1 which are closed upon de

63、pressing start switch 103 and upon depressing another normally open pushbutton switch 104 current is applied to a pump motor start relay CR1 that is also connected to neutral line 100. Upon pulling the switch button for

64、switch 104, the circuit is opened. In parallel with switch 104 and control relay CR1 is another normally open double pole pushbutton switch identified as a SAND A</p><p>　　At the bottom of the circuit is s

65、hown the sand selector switch 50 that is connected to the solenoid coil of solenoid valve 41, causing the valve to be actuated and apply fluid under pressure to the cylinder to cause the movement of valve 36. </p>

66、<p>　　Turning now to FIGS. 3A and 3B, the electrical schematic of the variable speed drive motors will now be described. Alternating current of 230 volts single phase is applied through a switch 106 to each of the

67、different mechanisms that may be in addition to the belt conveyor, feeders or pumps. A discussion of a portion of the circuit will be germain to the remainder where the various circuits and variable speed drive mechanism

68、s are substantially identical to each other. Power is applied to channel</p><p>　　Another circuit board 110 is connected in a similar manner to motor 24 except that the fixed resistor connected between termi

69、nals 1 and 8 is changed and in its place, a 1,000 ohm variable resistor 111 is substituted in its place so that the speed relationship of motor 24 may be varied independently of the operation of motor 21. Thus the feed a

70、uger conveyor 23 may be operated at different speeds by comparison to the speed of motor 21. </p><p>　　It will of course be evident that the other circuit boards 110 are similar to that described previously,

71、 along with the attendant speed sensors through the use of the toothed wheel 107 and magnetic sensor 108. It will also be understood that motors 80 and 81 could be replaced by motors 55 or 64, depending upon whether a dr

72、y additive was to be used or a chemical. Therefore, the drive motors have been identified in an alternate manner in FIGS. 3A and 3B. It is also desirable in some instances to h</p><p>　　It will also be desir

73、able on certain occasions to change the speed of all of the mechanisms without losing the speed relationship established through the use of the speed adjust potentiometers such as 111 and 112. Therefore, a speed control

74、arm 114 is secured to another 1,000 ohm speed control potentiometer 115 that is connected to an oscillator circuit 116 that is shown in a simplified form and identified further as part No. RC271-357 manufactured by Detec

75、tion Sciences, Inc. at 2165 Cheshire La</p><p>　　It must be noted that it is not possible to simply interchange the silica sand and green sand in hoppers 26 and 33 because the green sand, as stated previousl

76、y, quite often is mixed with the materials which were formed into a mold and broken into parts and dumped back in the hopper. Because the silica sand flows much like water, weir 15 is needed to make an even layer or spre

77、ading of the sand on conveyor belt 17 whereas green sand would plug up the weir and has not proved successful in attempts </p><p>　　By providing means to break up the green sand and permitting it to travel f

78、urther in the bottom of the first feeder 22, it has been found that a successful operation will take place in dispensing the green sand into the enclosed conveyor 15. It will, of course, be understood that various change

79、s may be made in the form, details, arrangement and proportions of the parts without departing from the scope of the invention which consists of the matter shown and described herein and set forth in the a</p><

80、;p><b>　　中文譯文</b></p><p><b>　　混砂機(jī)</b></p><p><b>　　摘要：</b></p><p>　　鑄造砂攪拌機(jī)通過封閉的縱向帶式輸送機(jī)來混合和配料二氧化硅或型砂及其添加劑，帶有一個(gè)個(gè)的給料口，連接第一個(gè)配料裝置，配料裝置在帶式輸送機(jī)機(jī)制的頂部，底部有

81、兩個(gè)開口。 The first feeder includes an auger-type conveyor and a sand weir communicating with the most upstream opening in the first feeder.第一給料裝置包括螺旋式輸送機(jī)和一個(gè)擋砂板，這個(gè)擋砂板連接配料裝置的最上端的給料口。 A first hopper for containing silica sand

82、and a second hopper for containing green sand are disposed over the first feeder.第一個(gè)漏斗含有石英砂和第二漏斗里的是型砂和添加劑，正對(duì)著第一個(gè)配料裝置。 A selective valve is disposed at the bottom of each of the first and second hoppers pe</p><

83、p>　　發(fā)明者：弗蘭基，唐納德先生 </p><p><b>　　聲明：</b></p><p>　　1 、 In a foundry sand mixer for mixing and dispensing silica or green sand and their additives, the combination comprising:在鑄造砂攪拌機(jī)混

84、合和配料二氧化硅或型砂及其添加劑，混合物包括： </p><p>　　(a) a support frame pivotal about a vertical axis and having a platform extending radially therefrom; （ a ）一個(gè)支撐框架包括一根垂直軸，并有一個(gè)平臺(tái)，徑向到軸;</p><p>　　(b) an enclosure

85、including an enclosed longitudinal belt conveyor mechanism extending above said platform and having a plurality of openings in the top of the enclosure communicating with said belt conveyor mechanism; （ b ）一個(gè)支撐框架包括封閉的縱向延

86、伸機(jī)制帶式輸送機(jī)上述表示的平臺(tái)和具有多元性的開口的頂部外殼溝通說帶式輸送機(jī)機(jī)制; </p><p>　　(c) first feeder means disposed above and at the most upstream location of said enclosed longitudinal belt conveyor mechanism, said first feeder means havin

87、g a bottom and converging sloping sides communicating near the bottom with an auger-type conveyor, and having a pair of openings longitudinally separated in the bottom thereof feeding said belt conveyor; （ c ）第一配料裝置給料方式，

88、在逆向的位置封閉機(jī)制帶式輸送機(jī)向第一給料口意味著一種自下而上和溝通融合坡面底部附近的一個(gè)螺旋式輸送機(jī)，并擁有雙開口，縱向分離的，底部有配料裝置的帶式輸送機(jī); </p><p>　　(d) a sand weir communicating with the most upstream opening of said pair of openings in said first feeder means, said

89、 sand weir disposed above said longitudinal belt conveyor mechanism for dispersing sand on said belt conveyor mechanism; （ d ）在沙堰溝通最上游開幕表示對(duì)開口說第一配料裝置說，沙堰處置上述表示縱向帶式輸送機(jī)機(jī)制分散沙子說帶式輸送機(jī)機(jī)制; </p><p>　　(e) a first hopp

90、er for containing silica sand disposed over the upstream portion of said first feeder means; （ e ）在第一個(gè)漏斗遏制硅砂處置的上游部分，第一給料裝置; </p><p>　　(f) a second hopper for containing green sand disposed downstream from sa

91、id first hopper and over said first feeder means; （ F ）的第二個(gè)漏斗遏制型砂處理下游第一漏斗和第一給料裝置; </p><p>　　(g) selective valve means disposed at the bottom of each of said first and second hoppers permitting the flow of sa

92、nd through only one of said hoppers at any time or preventing the flow of any sand from said hoppers; （ g ）項(xiàng)換向閥手段處置底部的每個(gè)說第一次和第二次料斗允許通過流砂只有一個(gè)說料斗在任何時(shí)候或防止任何的流動(dòng)沙說料斗; </p><p>　　(h) and control means operably conn

93、ected to said selective valve means for selecting one of said two sands or neither to be dispensed onto said belt conveyor. （ h ）和控制手段operably說選擇性連接到閥門的手段之一，說選擇兩個(gè)砂或既不免除上說帶式輸送機(jī)。 </p><p>　　2. 2 、 The structure

94、 set forth in claim 1 including:結(jié)構(gòu)中規(guī)定的索賠1 ，其中包括： </p><p>　　(i) a plurality of second feeder means disposed above said belt conveyor mechanism and at a downstream location from said first feeder means, each o

95、f said plurality of second feeder means having a bottom and converging sloping sides communicating near the bottom with an auger-type conveyor and having an opening in the bottom thereof feeding said belt conveyor;（i）多元化

96、的第二個(gè)給料裝置處置上述表示帶式輸送機(jī)機(jī)制和在下游位置由第一給料裝置，每個(gè)說多元化的第二個(gè)直屬意味著一種自下而上和溝通融合坡面底部附近的一個(gè)螺旋型輸送機(jī)，并在一個(gè)開放的底部有喂養(yǎng)說帶式輸送機(jī); </p><p>　　(j) a constant speed mixer disposed on said platform and arranged to receive granular and liquid mat

97、erials, mix the materials and deliver the mixed materials at a discharge opening, said belt conveyor communicating with said mixer; (j )條不斷加快處置密煉機(jī)上說平臺(tái)，并安排接收顆粒和液體材料，混合材料，并提供了混合材料在履行開放，說帶式輸送機(jī)溝通說混合器; </p><p>　　

98、(k) and a plurality of pump means connected to a plurality of fluids and communicating with said mixer. (k )和多元化的泵是指連接到一個(gè)多元化的液體和溝通說混合器。 </p><p>　　描述：本發(fā)明涉及領(lǐng)域的混砂機(jī)，尤其鑄造砂攪拌機(jī)混合硅或型砂及其添加劑。 </p><p>　　BA