CN206516245U - Lost foam casting teaching training system sandbox automatic conveyor line - Google Patents

Abstract

The utility model discloses a kind of lost foam casting teaching training system sandbox automatic conveyor line, including delivery track, it is provided with and is driven and reciprocating sandbox on the conveyor line by servomotor on the delivery track, the servomotor connects control system, set gradually on the conveying direction of delivery track plus sand molding station, knockout station and cast station, add sand molding and pour the negative pressure device being provided with station for providing negative pressure to sandbox, floor space is small, it is adaptable to which the limited laboratory in space or workshop are installed.

Description

Lost foam casting teaching training system sandbox automatic conveyor line

Technical field

The utility model is related to a kind of teaching and training equipment, more specifically, it relates to a kind of lost foam casting teaching instruction Practice system sandbox automatic conveyor line.

Background technology

Lost foam casting（Also known as negative pressure dry sand cavityless casting）It is that foam mould takes out true using the combination of bindless molding sand The casting technique of empty technology, is to bond the bubbles model similar to casting dimension shape to be combined into model cluster, brushes fire resisting and apply After expecting and drying, vibration molding in drystone sand is embedded in, is poured into a mould under negative pressure, model is gasified, liquid metals occupies model position Put, the novel casting method of casting is formed after solidification cooling.

Compared with conventional casting technologies, lost foam casting has following features：

1, casting quality is good, and cost is low；

2, material is not limited, and size is all suitable；

3, dimensional accuracy is high, any surface finish, reduces cleaning, and saving machine adds；

4, internal flaw greatly reduces, dense structure；

5, extensive, production in enormous quantities can be achieved；

6, automatic assembly line is more environmentally friendly；

7, operating environment, reduction labor intensity can be substantially improved, energy resource consumption is reduced；

Because or lost foam casting in the prior art is using 2（Or more than 2）Parallel track is arranged, ferried by termination The closed loop sandbox circular route of car connection, or using annular sandbox pipeline, but such method for arranging floor space is larger, no It is applied to very much school instruction.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of lost foam casting teaching and training System sandbox automatic conveyor line, floor space is small, it is adaptable to which the limited laboratory in space or workshop are installed.

To achieve the above object, the utility model provides following technical scheme：A kind of lost foam casting teaching and training system Unite sandbox automatic conveyor line, including delivery track is provided with the delivery track and driven by servomotor and on the conveyor line Reciprocating sandbox, the servomotor connects control system, has been set gradually on the conveying direction of delivery track plus sand Moulding station, knockout station and cast station, are provided with for providing negative to sandbox adding sand molding and pouring on station The negative pressure device of pressure.

By using above-mentioned technical proposal, because sandbox can advance or retreat under the driving of servomotor, make Sandbox is moved on the delivery track of straight line, compared to 2（Or more than 2）The rail of above parallel orbit or annular Road, the space shared by the track of straight line is minimum；By knockout station be arranged at plus sand molding station and cast station between, can be with Reduce knockout station with plus the distance between sand molding station, the molding sand drawn off on knockout station can be by the fortune of relatively short distance It is defeated just to reach plus sand molding station, so that the transport structure also can greatly reduce；Pour into a mould station and be located at delivery track End, such resistance furnace is arranged on the position in front of automatic conveyor line end, can so make resistance furnace away from pipeline, also Away from the students and teacher for participating in study, increase the security in teaching process.

The utility model is further arranged to：Described sandbox bottom is provided with Xie Shamen mechanisms able to turn on or off, described Knockout station is provided with screening plant, and described screening plant is located at the lower section of delivery track.

By using above-mentioned technical proposal, the bottom of sandbox is able to turn on or off, by opening Xie Shamen mechanisms by the type in sandbox Sand is drawn off, and is fallen into the screening plant of knockout station, for carrying out screening recycling, Xie Shamen mechanisms to qualified molding sand Keying can use manual operation Xie Shamen mechanisms, the keying of Xie Shamen mechanisms can be also controlled using mechanical structure, is being unloaded Driving or other instruments need not be used during going out molding sand, low, the increase that the professional skill requirement to operator is also compared Security during teaching and training.

The utility model is further arranged to：Described knockout station is turned on and off provided with driving Xie Shamen mechanisms Door opening and closing mechanism.

By using above-mentioned technical proposal, the Xie Shamen mechanisms of sandbox are arranged to the structure that can be pulled and pushed, and sandbox moves to When on sand station, sand door mechanism opening will be unloaded by door opening and closing mechanism, draw off the sand cast in sandbox, gate operator The keying of structure control Xie Shamen mechanisms, the keying of Xie Shamen mechanisms is controlled without manually, to artificial during reduction use Rely on.

The utility model is further arranged to：Described cast station is provided with the robot poured into a mould sandbox.

By using above-mentioned technical proposal, the motion of resistance furnace is controlled using robot, by the molten metal under molten condition It is poured into sandbox, reduces manually-operated danger.

The utility model is further arranged to：It is all provided with described plus sand molding station, cast station and knockout station Dust shield is equipped with, described dust shield is connected by cleaning shaft with deduster, and deduster is communicated with to the air after dedusting The exhaust gas processing device further handled.

By using above-mentioned technical proposal, due to can all there is dust generation during sand, cast, knockout is added, pass through The setting of dust shield and deduster, siphons away lost foam casting teaching training system sandbox automatic conveyor line and is produced in operation Raw dust, is conducive to keeping the environmental quality in teaching place, and dust is filled after deduster processing by vent gas treatment Put to the further processing of waste gas, get rid of the pernicious gas produced by after Bai Mo gasifies, air after treatment is discharged again Into air, meet the requirement of green discharge.

The utility model is further arranged to：Described shake table upper surface is provided with clamping body, the shake table Side is provided with the motor of the vibrator being obliquely installed and driving vibrator work.

By using above-mentioned technical proposal, sandbox is placed on vibration table surface, drive of the vibrator in vibrating motor Lower rotation vibrates shake table, and molding sand produces small circumference motion in sandbox, reduces molding sand linear displacement to cast model Damaging impact, makes molding sand filling more consolidation, and filling effect is good, improves the quality of cast casting.

Brief description of the drawings

Fig. 1 is the workshop structure figure for being provided with lost foam casting teaching training system sandbox automatic conveyor line；

The top view for the lost foam casting teaching training system sandbox automatic conveyor line that Fig. 2 is；

Fig. 3 is the side view of lost foam casting teaching and training system；

Fig. 4 is the structural representation of shake table；

The structural representation of Fig. 5 exhaust gas processing devices.

Reference：1st, automatic conveyor line；11st, delivery track；2nd, sand molding station is added；21st, raining-type sand filling device；22nd, shake Dynamic platform；221st, base；222nd, column；223rd, air bag；224th, motor；225th, vibrator；226th, claw；23rd, vacuum feed appliance； 231st, feeding tube；3rd, knockout station；31st, vibratory sieve；32nd, door opening and closing mechanism；4th, station is poured into a mould；41st, negative pressure device；42nd, bear Press distributor；5 resistance furnaces；6th, sandbox；7th, vacuum pump set；8th, deduster；81st, cleaning shaft；82nd, dust shield；9th, vent gas treatment Device；91st, housing；92nd, air inlet pipe；93rd, screen pack；94th, filtering agent.

Embodiment

As shown in Figure 1, a kind of lost foam casting training teaching training system, including automatic conveyor line 1, in automatic transport Set gradually on line 11 plus sand molding station 2, knockout station 3 and cast station 4.

Automatic conveyor line 1 includes two delivery tracks 11 be arrangeding in parallel, and the bottom of sandbox 6 is provided with and delivery track 11 The roller of mutual cooperation, for making the movement smooth on automatic conveyor line 1 of sandbox 6；Have on automatic conveyor line 1 along conveyor track Rack on the length direction of road 11, sandbox 6 is provided with movable motor, and movable motor uses servomotor or stepper motor, by watching Take motor or driving stepper motor sandbox 6 is moved, can so allow sandbox 6 accurately to reach by control system automatic defeated The optional position of line sending 1, is easy to the walking to sandbox 6 to be controlled；Reduction box can be set up between sandbox 6 and walking gear, By the setting of reduction box, gear is set to obtain bigger moment of torsion.

Plus sand molding station 2, including the raining-type sand filling device 2 positioned at the top of automatic conveyor line 1, drenched with rain when sandbox 6 is moved to , can be by raining-type sand filling device 2 to being added molding sand in sandbox 6 when the underface of sand-adding device 2；Raining-type sand filling device 2 Effect is that itself plus sand speed are fast, plus sand is more uniformly filled in each position of model, can fully cover and be positioned in sandbox 6 White mould, the impact of dialogue mould is small, reduce plus sand during the model deformation that produces, be easy to the abundant patch between molding sand and white mould Close, reduce the generation in space, be finally reached the purpose for the quality for improving casting；Shake table is provided with the bottom of automatic conveyor line 1 22, the clamping body of the upper surface of shake table 22, raining-type sand filling device 2 is carried out during adding sand to sandbox 6, and shake table 22 has one Fixed lifting, makes sandbox 6 depart from automatic conveyor line 1, the vibrating motor 224 and vibrator 225 set by the lower section of shake table 22 Work, make shake table 22 drive sandbox 6 vibrated, sandbox 6 vibration and raining-type sand filling device 2 carries out simultaneously, in raining-type sand filling During device 2 plus sand, in the presence of vibration force, molding sand is set to realize dynamic flowing in sandbox 6, between molding sand and molding sand Gap and molding sand and white mould between gap can gradually be eliminated, realize the mutual consolidation between molding sand and white mould, subtract Few casting flaw.

Shake table 22 includes being provided with column 222 on base 221, base 221, and the end of column 222 is provided with air bag 223, gripping mechanism is provided with the top of the table top of shake table 22, gripping mechanism is the claw 226 of pneumatic control, when sandbox 6 is moved Move when add on sand molding station 2, air bag 223 is inflated, and sandbox 6 is carried out into lifting, sandbox 6 is taken off with delivery track 11 From sandbox 6 is clamped by claw 226 under the driving of air pressure；Vibrating motor 224 is provided with base 221, in shake table Vibrator 225 is fixed with 22 table top, by the effect of vibrator 225, drives sandbox 6 to vibrate.

Station 4 is poured into a mould, bleeding point is provided with sandbox 6, there is negative pressure device 41 on cast station 4, for sand Case 6 is vacuumized, and realizes that carried out to the molding sand in sandbox 6 by vibration ramming between secondary consolidation, increase molding sand quiet rubs Wipe power,；When sandbox 6 is moved on cast station 4, the resistance furnace 5 equipped with molten metal bath is transported under the effect of driving Move on cast station 4, sandbox 6 poured into a mould, during cast, Bai Mo gasifies in the presence of high-temperature liquid metal, And the gas produced by the white mould gasified can be siphoned away by negative pressure device 41, mutually putting between molten metal and white mould is finally completed Change, complete the shaping of casting；Negative pressure distributor 42, which is provided with, in negative pressure device 41 carries out vacuum frequency modulation automatic Regulation.

Knockout station 3 be located at cast station 4 and add sand molding station 2 between, so set after, pour into a mould station 4 be located at The end of automatic conveyor line 1, such resistance furnace 5 is that can be installed on the side of automatic conveyor line 1, can also be located at automatic defeated The end of line sending 1, its position set can have more selections, the present embodiment it is preferred resistance furnace 5 is arranged on it is automatic defeated Position in front of the end of line sending 1, can so make resistance furnace 5 away from evaporative pattern teaching and training system, also be learned far away from participation Security in the students and teacher of habit, increase teaching process.Because knockout station 3 is closer to sand molding station 2 is added, so The length of the feeding tube 231 of vacuum feed appliance 23 can be reduced, so as to increase the stability of the feeding of vacuum feed appliance 23；When sandbox 6 Completed on knockout station 3 after knockout, the casting technique for adding sand molding station 2 to carry out next time can be returned to faster, increased Plus the efficiency in teaching process.

Knockout station 3, sandbox 6 can be entered by knockout station 3 and poured after adding sand molding station 2 to complete to add sand molding Note station 4 is poured into a mould, and now sandbox 6 is when by knockout station 3, merely by sandbox 6 can't be in fettler Position 3 stops；And sandbox 6 is moved to knockout station 3 and carries out discharging after the cast complete cast of station 4, by opening for the bottom of sandbox 6 Mouth is opened, and the molding sand in sandbox 6 and casting are discharged；Due to by the way of the knockout of bottom, can effectively reduce dust Generation, while open and close Xie Shamen mechanisms using door opening and closing mechanism 32, reduce during use to artificial dependence, it is above-mentioned Door opening and closing mechanism 32 it is simple in construction, the cost of the manufacturing is relatively low.

The lower end of automatic conveyor line 1 at knockout station 3 is provided with vibratory sieve 31, molding sand and casting that the bottom of sandbox 6 is drawn off Or the top of vibratory sieve 31 is dropped into, granular size is accorded with satisfactory molding sand and screened by vibratory sieve 31 by vibration, is closed The molding sand of lattice drops into the conveyer belt of the lower section of vibratory sieve 31 by vibratory sieve 31, is sent to by conveyer belt on vacuum feed appliance 23, The molding sand that can not be re-used can be left on the top of vibratory sieve 31；Vacuum feed appliance 23 is connected with raining-type sand filling device 2, for rain Drench sand-adding device 2 and carry out feeding, because the utility model is mainly used in imparting knowledge to students, therefore the requirement to molding sand is not special height, Compared to the sand preparing system in enterprise, the sand filtration system in the utility model, structure is more simple, to molding sand processing Efficiency is fast, and equipment cost is lower, meets the use of teaching.

Dust shield 83 is provided with the above-mentioned position that can produce dust, diffussion of dust is reduced to influence teaching among air Environment, influences the health of student teacher.Several dust shields 83 are connected on same cleaning shaft 81 simultaneously, and dust shield 83 is inhaled The dust entered is entered by cleaning shaft 81 and is removed dust on deduster 8, as preferred, and deduster 8 uses arteries and veins Rush blowback dust-removal cloth-bag and carry out dedusting, because the dedusting method is this area more conventional technique, it will not go into details herein.Except Dirt device 8 is additionally arranged exhaust gas processing device 9, and exhaust gas processing device 9 is connected with the offgas outlet of deduster 8, and exhaust gas processing device 9 is wrapped Housing 91 is included, housing 91 is provided with the air inlet pipe 92 connected with the offgas outlet of deduster 8, and air inlet pipe 92 is inserted into inside housing 91, Air inlet pipe 92 is located at one section of housing 91 and is provided with an inclined otch, and screen pack 93 is secured in the top of housing 91, Filtering agent 94 is mounted with screen pack 93, the setting down of the end of air inlet pipe 92 is so provided for making tail gas first pass through housing The chamber of 91 lower sections, makes the larger dust of some particles be precipitated in following chamber, reduces the dependence to filtering agent 94；From dedusting The tail gas that device 8 comes out is entered in housing 91 by air inlet pipe 92, is entered by 94 two kinds of filter mediums of screen pack 93 and filtering agent Row filtering, a small amount of dust and other pernicious gases for removing doping in tail gas is reabsorbed, so that the discharge symbol of tail gas The requirement that cyclization is protected, reduces pollution of the tail gas to air.

Wherein negative pressure device 41, dust arrester, the negative pressure of vacuum feed appliance 23 are provided by vacuum pump set 7, there is single Vacuum pump set 7 provides negative pressure to whole system, is easy to control system to be controlled negative pressure, can effectively increase the utilization of the energy Rate, while single vacuum pump set 7 is easier to make for safeguarding.

The technical process cast using evaporative pattern teaching and training system is as follows：

By using above-mentioned technical proposal, included using lost foam casting teaching training system sandbox automatic conveyor line following Step：

（1）White molding is made, and dialogue mold base material carries out Numerical control cutting or manually cut, produce Bai Mo shape with Cast shape for molding is identical；

（2）Brushing exotic material, last layer fire-proof high-temperature resistant material is coated in the white mould surface of shaping；

（3）Drying, the coating of dialogue mould surface is dried；

（4）Empty sandbox 6 is transported to the underface of raining-type sand filling device 2 by raining-type sand filling, automatic conveyor line 1, in Bai Mofang Before in sandbox 66, raining-type sand filling device 2 is first passed through in sandbox 6 and spreads certain thickness molding sand, then white mould is put into sandbox 6 It is interior；The shake table 22 of the lower section of automatic conveyor line 1 is fixed with sandbox 6, opens raining-type sand filling device 2 and uniformly adds sand to sandbox 6, Plus vibration is opened while sand, eliminate the gap between molding sand and white mould in sandbox 6；

（5）Cast, sandbox 6 leaves plus sand molding station 2 along automatic conveyor line 1, is moved on cast station 4, passes through Negative pressure device 41 on cast station 4 is vacuumized to sandbox 6, while the casting of molten metal into sandbox 6；White mould contacting metal Liquid gasifies, and produced gas is inserted to be siphoned away with the vacuum tube on sandbox 6, and molten metal replaces white mould, is formed and white mould shape The same casting, the process for completing cast；

（6）Knockout, treats that the workpiece in sandbox 6 is cooled to after appropriate temperature, sandbox 6 to add sand molding side move, Knockout station 3 is moved to, the molding sand in sandbox 6 is drawn off, the molding sand drawn off is fallen on screening plant；

（7）Molding sand is reclaimed, and the molding sand drawn off is screened by screening plant, it is preferred to use vibratory sieve 31, will be unnecessary Impurity remove, qualified molding sand is gathered on a container, by vacuum feed appliance 23 will on molding sand arrive raining-type sand filling device Used in 221.

Described above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to Above-described embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.It should refer to Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (6)

1. a kind of lost foam casting teaching training system sandbox automatic conveyor line, it is characterized in that：Including delivery track, the conveying It is provided with and is driven and reciprocating sandbox on the conveyor line by servomotor on track, the servomotor connection control is System, has set gradually plus sand molding station, knockout station and cast station on the conveying direction of delivery track, has been made adding sand Type and pour on station be provided with for sandbox provide negative pressure negative pressure device.

2. lost foam casting teaching training system sandbox automatic conveyor line according to claim 1, it is characterized in that：Described Sandbox bottom is provided with Xie Shamen mechanisms able to turn on or off, and described knockout station is provided with screening plant, described screening plant Positioned at the lower section of delivery track.

3. lost foam casting teaching training system sandbox automatic conveyor line according to claim 2, it is characterized in that：Described The door opening and closing mechanism that knockout station is turned on and off provided with driving Xie Shamen mechanisms.

4. lost foam casting teaching training system sandbox automatic conveyor line according to claim 1, it is characterized in that：Described Cast station is provided with the robot poured into a mould.

5. lost foam casting teaching training system sandbox automatic conveyor line according to claim 1, it is characterized in that：Described Plus be provided with dust shield on sand molding station, cast station and knockout station, described dust shield by cleaning shaft with Deduster is connected, and deduster is communicated with the exhaust gas processing device further handled the air after dedusting.

6. lost foam casting teaching training system sandbox automatic conveyor line according to claim 1, it is characterized in that：Described Plus sand molding station is provided with shake table, described shake table upper surface is provided with clamping body, and the lower section of the shake table is set There is vibrator.