CN108817318B

CN108817318B - Valve casting production line that security and degree of automation are high

Info

Publication number: CN108817318B
Application number: CN201810618133.3A
Authority: CN
Inventors: 占菊凤
Original assignee: Fujian Shenyue Casting Co Ltd
Current assignee: Fujian Shenyue Casting Co Ltd
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2020-02-21
Anticipated expiration: 2038-06-15
Also published as: CN108817318A

Abstract

The invention discloses a valve casting production line with high safety and high automation degree, which comprises a metal melting area, a wax material forming area, a pouring area, a polishing area and a polishing area, wherein the metal melting area, the wax material forming area, the pouring area, the polishing area and the polishing area are sequentially arranged according to a production sequence, and the valve casting is processed by one working procedure through the metal melting area, the wax material forming area, the pouring area, the polishing area and the polishing area. And set up the forced air cooling structure in wax material shaping district, closing device and elastic construction's setting realizes the location cooling to the valve foundry goods, realizes the drainage to the metal liquid through guiding device, avoids splashing of metal liquid, and the setting of the positioning fixture that polishes makes the valve foundry goods can effectually rotate and realizes the omnidirectional and polish, can make things convenient for the inside washing of burnishing device again when polishing the foundry goods through burnishing device. Compared with the prior art, the invention greatly improves the production efficiency, effectively prolongs the service life of equipment and reduces the labor intensity of workers.

Description

Valve casting production line that security and degree of automation are high

Technical Field

The invention relates to the field of valve casting production lines, in particular to a valve casting production line with high safety and automation degree.

Background

Casting is a method in which liquid metal is cast into a casting cavity adapted to the shape of a part, and after cooling and solidification, a metal part blank having a certain shape, size and performance is obtained. Whereas valve casting lines generally comprise: the metal melting zone, the wax material forming zone, the pouring zone, the polishing zone and the polishing zone are sequentially arranged according to a production sequence. And the casting area of the casting production of the valve adopts the casting machine to cast the molten metal in the valve mould plate, but the existing valve casting production line adopts the manual work to carry the valve mould plate to the casting machine to cast and then convey away, thereby wasting a large amount of manual time and energy, having lower production efficiency and inconvenient use. In addition, burrs and protrusions on the formed valve casting need to be polished, and the traditional structure for polishing the valve casting is complex, polishing efficiency is low, and production efficiency is seriously affected. In addition, the polished valve casting is polished in the polishing area, a shot blasting sand removing device is commonly used in polishing, a large amount of dust and metal debris can be accumulated in the shot blasting sand removing device after the shot blasting sand removing device is used for a period of time, and the interior of the shot blasting sand removing device cannot be effectively cleaned through a simple cleaning means.

In view of the above, the applicant has made an intensive study to solve the above problems and has made the present invention.

Disclosure of Invention

The invention mainly aims to provide a valve casting production line with high safety and automation degree, which has the advantages of high production efficiency, long service life of equipment and effective reduction of labor intensity.

In order to achieve the above purpose, the solution of the invention is:

a valve casting production line with high safety and high automation degree comprises a metal melting area, a wax material forming area, a pouring area, a polishing area and a polishing area, wherein the metal melting area, the wax material forming area, the pouring area, the polishing area and the polishing area are sequentially arranged according to a production sequence;

the metal melting area is provided with a placing table, an electric heating plate and a pouring bucket, one end of the electric heating plate is rotatably connected with the placing table, a melting cavity for melting solid metal is formed in the electric heating plate, the lower surface of the electric heating plate is connected with a plurality of electric wires, the electric wires are all connected with a power supply, a hydraulic cylinder is further arranged on the placing table, a cylinder body of the hydraulic cylinder is fixedly connected with the placing table, a piston rod of the hydraulic cylinder is connected with the electric heating plate, and the pouring bucket is located beside the placing table and used for collecting molten metal;

a wax material forming area is arranged on the outer wall of the mould, and is provided with a wax material forming area, a wax material forming area and a wax material forming area, wherein the wax material forming area is provided with a feeding conveyor structure, a pressing device which is arranged on the side surface of the feeding conveyor structure and is used for positioning the mould, a second middle conveyor which is vertical to the feeding conveyor structure, a third middle conveyor which is vertical to the second middle conveyor, an air cooling structure which is arranged on the third middle conveyor, a fourth middle conveyor which is vertical to the third middle conveyor and is horizontal to the second middle conveyor, and a blanking conveying structure which is vertical to the fourth middle conveyor; the pressing device comprises a supporting frame, an air cylinder connected to the top of the supporting frame and used for pressing the die, and an elastic structure connected to the end of the air cylinder and used for being in contact with the die; the air cooling structure comprises a shell, a first bell mouth, a first fan, an outlet pipeline and a purification structure, wherein the shell is arranged on the third intermediate conveyor and used for forming an air cooling cavity;

the pouring area is provided with a stepping motor, a conveying belt driven by the stepping motor and a travelling crane for carrying a pouring barrel, the travelling crane runs back and forth between the metal melting area and the pouring area, the conveying belt is provided with a plurality of forming molds which are sequentially arranged along the conveying belt, the bottom of the casting barrel is provided with a liquid outlet valve, the bottom of the casting barrel is provided with a supporting leg, the length of the supporting leg is longer than that of the liquid outlet valve, the liquid outlet valve is also provided with a flow guide device matched with the liquid outlet valve, the flow guide device comprises a vertical joint, an inclined flow guide pipe and a flow-assisting pipe, one end of the vertical joint is connected with the liquid outlet valve in a matching way, the other end of the vertical joint is communicated with one end of the inclined flow guide pipe, the interior of the inclined flow guide pipe is provided with a spiral channel, and one end of the flow-assisting pipe is communicated with one end of the inclined flow guide pipe close to the vertical joint; one end of the inclined flow guide pipe, which is far away from the vertical joint, is in an inclined notch shape;

the polishing device comprises a polishing area, a polishing positioning clamp and a plurality of clamping blocks, wherein the polishing area is provided with the polishing positioning clamp, the polishing positioning clamp comprises a base, one side of the base is fixedly connected with a support, a pair of sliding grooves are formed in the support, threaded rods are rotatably connected in the two sliding grooves, the thread directions of the two ends of the two threaded rods are reversely arranged, clamping shafts are respectively sleeved at the two ends of the two threaded rods in a threaded manner, one ends of the two clamping shafts are connected with the pair of clamping blocks, a motor is installed in the base, a worm is rotatably connected to the driving end of the motor, worm wheels are fixedly sleeved at the centers of the two threaded rods and are meshed with the worm wheels, a first connecting block is rotatably sleeved on the worm and is fixedly connected with the support, threaded bolts are inserted at the two ends of the base, and a plurality;

the polishing area is provided with a polishing device, and the polishing device comprises a circular upper cover and a cylindrical cleaning box which are matched with each other; an annular cavity with an annular structure is arranged in the upper cover, a plurality of water spraying holes inclining towards the lower part in the cleaning box are arranged at the bottom of the annular cavity in a circular array mode, and a circular water inlet pipe is arranged above the right part of the annular cavity; a driving motor is mounted in the center of the top surface of the upper cover, a motor shaft penetrates through the upper cover through a bearing at the lower end of the driving motor, a placing groove with an annular groove structure is formed in the lower end of the motor shaft, and a plurality of water leakage holes are formed in the bottom of the placing groove in a circular array; a connecting groove with a square groove structure is formed in the center of the lower end of the motor shaft, and a second connecting block with a square structure is installed inside the connecting groove in a matched mode; circular mounting holes are formed in the upper end of the second connecting block and two sides of the upper portion of the connecting groove, and the second connecting block is fixedly mounted inside the mounting holes through bolts; a threaded hole is vertically formed in the right end of the bolt, and a screw is arranged in the threaded hole in a matched mode; a connecting column with a cylindrical structure is fixedly connected below the second connecting block, the bottom end of the connecting column is also provided with the connecting groove, and the middle part of the connecting column is also provided with a mounting hole matched with the bolt; the connecting columns are fixed through the matching of the second connecting block and the connecting groove and are sequentially connected and installed from top to bottom; a plurality of shot blasting pipes are arranged around the side wall of the cleaning box in a circular array mode, the inner ends of the shot blasting pipes are provided with shot outlets in V-shaped structures, the left ends of the shot blasting pipes are vertically communicated with shot inlet pipes, and the upper ends of the shot inlet pipes are provided with shot inlets; the lower end of the shot inlet pipe is communicated with a shot blasting device; the bottom of the cleaning box is of a spherical structure, a sand leakage hole with a conical structure is formed in the center of the bottom of the cleaning box, and a square collecting tank for collecting shot blasting particles is arranged below the sand leakage hole in a matched mode; the bottom of the cleaning box is provided with 4 support legs with square column structures in a rectangular array arrangement; a square water tank for storing water is arranged on the right side of the cleaning box, a submersible pump is arranged at the bottom of the water tank, and the submersible pump is fixedly communicated with the water inlet pipe in a sealing manner through a hose; a controller with a square block structure is fixedly arranged at the upper part of the right side of the cleaning box, a motor control button is arranged at the left part of the front of the controller, and a water pump control button is arranged at the right part of the front of the controller; the controller is connected with the driving motor and the submersible pump in an electrified way.

Further, the feeding conveyor structure comprises a first steel mesh belt conveyor which is obliquely arranged, and a first roller conveyor which is matched with the first steel mesh belt conveyor and is horizontally arranged.

Further, the blanking conveying structure comprises a second roller conveyor matched with the fourth middle conveyor, a second steel mesh belt conveyor matched with the second roller conveyor and arranged obliquely, and an oblique blanking groove matched with the second steel mesh belt conveyor; the width dimension of the inclined blanking groove is gradually reduced from the part matched with the second steel mesh belt conveyor downwards, and a trapezoidal structure is formed after plane projection.

Further, the elastic structure comprises a bolt in threaded connection with the end of the cylinder, and a spring and an arc-shaped elastic sheet which are connected between the bolt and the end of the cylinder; the arc-shaped elastic sheet is of a cross-shaped structure after plane projection.

Further, a heat exchange structure is arranged on the outlet pipeline; the heat exchange structure comprises a heat exchange cavity arranged on the outlet pipeline, an inlet and an outlet connected to the heat exchange cavity, and a plurality of heat exchange fins connected to the inner wall of the outlet pipeline.

Further, the both sides of base equal symmetry fixed mounting have the fixed plate, installation mechanism installs in the fixed plate, installation mechanism includes a pair of thread bush, two the thread bush is respectively threaded insert and is established in the fixed plate, two equal threaded insert in the thread bush is equipped with the screw spindle, two for rotating the connection between the screw spindle, fixedly connected with fixed block on the base, it has a pair of adjusting knob to rotate the joint on the fixed block, two the adjusting knob cup joints with the screw spindle respectively.

Further, two the equal fixedly connected with slide shaft of clamp axle one side far away apart, the slide shaft passes the support, the epaxial connecting spring that has cup jointed of slide, connecting spring's one end and clamp axle fixed connection, connecting spring's the other end and support fixed connection, the clamp splice rotates with the clamp axle to be connected, the clamp splice has cup jointed the return spring with the junction of clamp axle.

Further, be provided with the stopper on the thread bush, set up the spacing groove that corresponds with the stopper in the fixed plate, stopper and spacing groove joint, the collecting vat has been seted up to one side of base, sliding connection has the fly leaf in the collecting vat.

Furthermore, the bottom of the upper cover is provided with a convex ring which is matched with the opening at the upper part of the cleaning box, the contour diameter of the convex ring is smaller than that of the upper cover, and the contour diameter of the convex ring is smaller than or equal to the inner diameter of the opening of the cleaning box.

After the structure is adopted, the valve casting production line with high safety and automation degree, which is disclosed by the invention, mainly comprises the following working processes:

firstly, the solid metal in the melting cavity is subjected to high-temperature melting treatment through resistance heating after the electric heating plate is electrified in the metal melting area, the electric heating plate is inclined under the action of the hydraulic cylinder, the melting cavity is also inclined at the same time, the melted metal liquid slides into the pouring barrel, and the pouring barrel is used for collecting the melted metal liquid. Simultaneously in wax material shaping district, remove the mould through a plurality of conveyer structures to compress tightly the mould location through closing device, annotate the wax machine through among the prior art and annotate the wax to the mould, accomplish the back, the mould continues to move along with material loading conveyer structure, second intermediate transport machine and third intermediate transport machine, realizes the cooling shaping through the air-cooled structure, takes out the forming die after the shaping, gets into the pouring district. In the pouring area, forming die fixes on the conveyer belt, the driving will be equipped with the molten metal after melting and melt the district from the metal and carry the pouring area, and pour into a mould through play liquid valve and guiding device under the pouring ladle on to the conveyer belt, obtain the valve foundry goods after the cooling shaping, then entering into the district of polishing, polish anchor clamps through the location and carry out the location clamp to the valve foundry goods and tightly conveniently polish, and simultaneously through the adjusting knob, the screw bolt, a pedestal, mutually supporting of screw shaft and thread bush etc. can dismantle this equipment at any time, and can follow the front, side or bottom are installed, processing equipment to different effects all can use. And finally, polishing the valve casting to finish the casting of the whole valve casting.

Compared with the prior art, the invention has at least the following beneficial effects:

through the arrangement of the plurality of conveyors, the movement of the molds is facilitated, the carrying of workers is reduced, and the arrangement of the molds in the area is tidier and has good safety; the arranged pressing device can reliably position the die; the air cooling structure enables the mold after wax injection to realize quick cooling, and after heat is discharged, indoor temperature is reduced, and working environment is improved.

Secondly, make the metal liquid from handing over the pouring ladle through the play liquid valve outflow back in the casting ladle through the cooperation of slope honeycomb duct and flow-assisting pipe in the guiding device, can enter into forming die through the helical passage in the slope honeycomb duct, flow-assisting pipe helps the metal liquid to flow into forming die, and whether the use through guiding device is convenient for clear observation forming die pours the metal liquid, can effectually avoid splashing when the metal liquid is poured again, improves production safety.

And thirdly, the polishing operation of the valve casting is performed through the polishing device, so that the polishing of the valve casting is realized, the cleaning of dust and metal fragments in the polishing device is facilitated, and the valve casting is subjected to omnibearing shot blasting cleaning in a suspension rotating mode.

Drawings

FIG. 1 is a schematic overall flow chart of the present invention.

Fig. 2 is a schematic view showing the overall structure of each component in the metal melting zone in the present invention.

Fig. 3 is a schematic view showing the structure of each part in the wax forming zone of the present invention.

Fig. 4 is a view taken along direction a in fig. 3.

Fig. 5 is a partially enlarged view of a portion C in fig. 4.

FIG. 6 is a schematic view of a heat exchange structure according to the present invention.

Fig. 7 is a view taken along the direction B in fig. 3.

Fig. 8 is a top view of the inclined chute of the present invention.

FIG. 9 is a front view of the construction of the various components in the pour zone of the present invention.

Fig. 10 is a cross-sectional view of a deflector of the present invention.

Fig. 11 is a schematic structural view of an inclined flow guide tube in the flow guide device.

FIG. 12 is a top view of the construction of the various components of the pour zone of the present invention.

Fig. 13 is a schematic structural view of a polishing positioning jig in the polishing area according to the present invention.

Fig. 14 is an enlarged schematic view at D in fig. 13.

FIG. 15 is a plan view of the polishing apparatus of the present invention.

FIG. 16 is a schematic view showing the internal structure of the polishing apparatus of the present invention.

FIG. 17 is a schematic view showing the bottom of a connecting column in the polishing apparatus of the present invention.

FIG. 18 is a schematic view showing the top of a connecting column in the polishing apparatus of the present invention.

In the figure:

a metal melting zone-1; a placing table-11; an electric hot plate-12; a melting chamber-13;

-14, a wire; a hydraulic cylinder-15;

a wax material forming area-2; a feeding conveyor structure-24; a second intermediate conveyor-25;

a third intermediate conveyor-26; a fourth intermediate conveyor-27; a blanking conveying structure-28;

a support frame-29; a cylinder-210; -211 an elastic structure; a housing-212;

a first bell-mouth-213; a first fan-214; outlet line-215;

-216 a purification structure; a heat exchange cavity-217; inlet-218; an outlet-219;

heat exchange fins-220; a first steel mesh belt conveyor-2401;

a first roller conveyor-2402; a second roller conveyor-2801; a sideboard-2804;

a second steel mesh belt conveyor-2802; a chute-2803 is inclined; a first bolt-21101;

a first spring-21102; arc elastic sheet-21103; heat exchange structure-2101;

a pouring area-3; a conveyor belt-31; a casting ladle-32; traveling a vehicle-33; a forming die-34;

a liquid outlet valve-35; supporting legs-36; a vertical joint-371; an inclined draft tube-372;

a flow-assisting pipe-373; a helical channel-374;

polishing area-4; a threaded bolt-41; a threaded sleeve-42; a slide shaft-43; a support-44;

a connecting spring-45; a clamp shaft-46; a clamp block-47; a worm gear-48; a threaded rod-49;

a first connection block-410; a chute-411; a base-412; -a motor-413; a worm-414;

a fixing plate-415; a threaded shaft-416; knob-417; a fixed block-418;

polishing zone-5; an upper cover-51; a cleaning box-52; a drive motor-53; a motor shaft-54;

-55 an annular chamber; water spray hole-56; a water inlet pipe-57; a controller-58; a second bolt-59;

screw-510; a placement tank-511; a second connection block-512; a connecting column-513;

mounting holes-514; connecting groove-515; a water tank-516; submersible pump-517; a pill inlet pipe-518;

shot blasting machine-519; shot blasting tube-520; pill outlet-521; a water leakage hole-522; sand leakage hole-523;

collection tank-524; support legs-525.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

As shown in fig. 1-18, a valve casting production line with high safety and high automation degree, wherein the valve casting production line comprises a metal melting zone 1, a wax material forming zone 2, a pouring zone 3, a polishing zone 4 and a polishing zone 5, the metal melting zone 1, the wax material forming zone 2, the pouring zone 3, the polishing zone 4 and the polishing zone 5 are sequentially arranged according to a production sequence, the metal melting zone 1 is provided with a placing table 11, an electric heating plate 12 and a pouring barrel 32, one end of the electric heating plate 12 is rotatably connected with the placing table 11, the electric heating plate 12 is provided with a melting chamber 13 for melting solid metal, the lower surface of the electric heating plate 12 is connected with a plurality of electric wires 14, the electric wires 14 are all connected with a power supply (not shown), the placing table 11 is further provided with a hydraulic cylinder 15, the cylinder body of the hydraulic cylinder 15 is fixedly connected with the placing table 11, the piston rod of the hydraulic cylinder 15 is connected with the electric heating plate 12, the casting ladle 32 is positioned beside the placing table 11 and used for collecting molten metal; through adopting above-mentioned structure in metal melting zone 1 for when needs melt the metal, put into melting chamber 13 on electric plate 12 with solid-state metal, carry out the high temperature through the heating of circular telegram back resistance and melt the processing to the solid-state metal that melts in chamber 13, finally make the solid-state metal that melts in chamber 13 become the metal liquid, the promotion through pneumatic cylinder 15 makes electric plate 12 take place to rotate and slope, make the metal liquid that solid-state metal melts become to the pouring ladle 32 of placing below, the realization is to melting and collection of metal. The traditional means is that after the metal melts, the metal liquid is scooped up and transferred to the pouring ladle 32 by a long ladle held by a worker, and the worker directly scoops up the metal liquid to enable the worker to endure the high temperature of the surrounding environment in the process of transferring the metal liquid, and higher potential safety hazards exist. And the automatic collection is realized by directly letting the molten metal flow down automatically through the inclined electric heating plate 12, thereby solving the problems of potential safety hazard and poor working environment existing in the traditional mode.

A feeding conveyor structure 24, a pressing device which is arranged on the side surface of the feeding conveyor structure 24 and is used for positioning a mold, a second middle conveyor 25 which is arranged perpendicular to the feeding conveyor structure 24, a third middle conveyor 26 which is arranged perpendicular to the second middle conveyor 25, an air cooling structure which is arranged on the third middle conveyor 26, a fourth middle conveyor 27 which is arranged perpendicular to the third middle conveyor 26 and is arranged horizontally to the second middle conveyor 25, and a blanking conveyor structure 28 which is arranged perpendicular to the fourth middle conveyor 27 are arranged on the wax material forming area 2; the pressing device comprises a support frame 29, a cylinder 210 connected to the top of the support frame 29 and used for pressing the die, and an elastic structure 211 connected to the end of the cylinder 210 and used for contacting with the die; the air cooling structure comprises a shell 212 which is arranged on the third intermediate conveyor 26 and is used for forming an air cooling cavity, a first bell mouth 213 and a first fan 214 which are connected to one side of the shell 212, and an outlet pipeline 215 and a purification structure 216 which are connected to the other side of the shell 212; the shell 212 is of a square box structure, an opening through which the third intermediate conveyor 26 can pass is formed in the side face of the shell, and under the condition that the third intermediate conveyor 26 can reliably convey the mold, filling materials are adopted as much as possible, the area of the opening is reduced, and a relatively closed air cooling cavity is formed; the purification structure 216 can adopt a bag-type dust remover or a water curtain dust remover, and is fully contacted with hot air, so that the temperature is reduced, the hot air can be purified, and clean air is discharged; in actual use, the control system adopts the structure in the prior art and is provided with a button and the like, so that the actions of the conveyor, the air cylinder 210, the first fan 214 and the like are convenient to operate; the second intermediate conveyor 25, the third intermediate conveyor 26 and the fourth intermediate conveyor 27 are all horizontally arranged roller conveyors; the word 'fit' is equivalent to fit, and when the conveyer is installed, certain gaps are left, so that the conveyer is not collided; the die is conveyed to the feeding conveyor structure 24 through a forklift, a travelling crane and the like, and is pressed tightly through the air cylinder 210 on the door-shaped or L-shaped support frame 29, and the elastic structure 211 is arranged to form a buffering force, so that the die and the conveyor cannot be damaged when the die is pressed tightly; after the mould is compressed, wax is injected into the mould through a wax injection machine in the prior art, after the wax injection is completed, the air cylinder 210 is loosened, the mould continues to move along with the feeding conveyor structure 24, the second intermediate conveyor 25 and the third intermediate conveyor 26, and is cooled and formed through an air cooling structure, and then continues to move along with the third intermediate conveyor 26 and the fourth intermediate conveyor 27 to reach the blanking conveyor structure 28, the mould is stopped, disassembled, the formed mould is taken out, the mould is continuously sent out by the blanking conveyor structure 28 and is manually taken out, and the next procedure is carried out; by arranging the plurality of conveyors, the mold can be conveniently moved, the times of carrying up and down are reduced, the mold is moved by a sufficient distance, air cooling forming is facilitated, and the arrangement of the mold in an area is neat and tidy, and the safety is good; be provided with the forced air cooling structure, can be quick cool down to the mould after annotating the wax, discharge the outdoor back of heat moreover, reduced indoor temperature, operational environment is good.

Pouring district 3 is provided with step motor (not shown), by step motor driven conveyer belt 31 and be used for carrying the driving 33 of pouring ladle 32, driving 33 makes a round trip to operate between metal melting district 1 and pouring district 3, be equipped with a plurality of forming die 34 that arranges along conveyer belt 31 in proper order on the conveyer belt 31 in proper order, the top of conveyer belt 31 still is equipped with air-cooled structure, the bottom of pouring ladle 32 is equipped with out liquid valve 35, the bottom of pouring ladle 32 is equipped with supporting legs 36, the length of supporting legs 36 is good at go out the length of liquid valve 35, go out and still install the guiding device with go out liquid valve 35 assorted on the liquid valve 35, guiding device includes vertical joint 371, slope honeycomb duct 372 and flow-assisting pipe 373, vertical joint 371's one end with go out liquid valve 35 accordant connection, vertical joint 371's the other end with the one end intercommunication of slope honeycomb duct 372, the inclined flow guide tube 372 is internally provided with a spiral channel 374, and one end of the flow-assisting tube 373 is communicated with one end of the inclined flow guide tube 372 close to the vertical joint 371; one end of the inclined flow guide pipe 372, which is far away from the vertical joint 371, is in an inclined notch shape, and the inclined notch shape is convenient for guiding the molten metal so as to realize accurate pouring of the molten metal; the pouring ladle 32 in the metal melting area 1 is transferred to the pouring area 3 through the travelling crane 33 in the pouring area 3, the pouring ladle 32 is positioned above the forming mold 34, and then the liquid outlet valve 35 is opened, so that the molten metal in the pouring ladle 32 passes through the liquid outlet valve 35 and then smoothly flows into the forming mold 34 through the inclined flow guide tube 372, and the forming mold 34 is poured. A pouring controller (not shown) is further arranged in the pouring area 3, the pouring controller is electrically connected with the stepping motor, the pouring controller controls the running frequency of the stepping motor so as to control the operation of the conveying belt 31, and a liquid outlet controller (not shown) is arranged on the liquid outlet valve 35 and controls the liquid outlet valve 35 to be opened at intervals. Through the arrangement of the liquid outlet controller and the pouring controller, the forming mold 34 can be filled with the molten metal when the liquid outlet valve 35 is opened, and after the forming mold 34 is filled with the molten metal, the liquid outlet valve 35 is closed, and the stepping motor starts to operate, so that the next empty forming mold 34 is moved and the empty forming mold 34 is poured with the molten metal. The circulation realizes automatic pouring, thereby greatly improving the pouring efficiency. And an air cooling structure is also arranged right above the conveying belt 31 and staggered with the pouring ladle 32, so that the metal casting can be cooled quickly through the air cooling structure, and the formation of a finished product is accelerated.

The polishing area 4 is provided with a polishing positioning fixture, the polishing positioning fixture comprises a base 412, one side of the base 412 is fixedly connected with a support 44, a pair of sliding grooves 411 are formed in the support 44, threaded rods 49 are rotatably connected in the two sliding grooves 411, the thread directions of two ends of each threaded rod 49 are reversely arranged, clamping shafts 46 are respectively connected with two ends of each threaded rod 49 through threaded sleeves 42, one ends of the two clamping shafts 46 are connected with a pair of clamping blocks 47, a motor 413 is installed in the base 412, a worm 414 is rotatably connected to the driving end of the motor 413, worm wheels 48 are fixedly sleeved in the centers of the two threaded rods 49, the worm 414 is meshed with the worm wheels 48, a first connecting block 410 is rotatably sleeved on the worm 414, the first connecting block 410 is fixedly connected with the support 44, and threaded bolts 41 are inserted in two ends of the base 412, a plurality of mounting mechanisms are further arranged on the base 412; the user uses during the positioning fixture polishes, motor 413 passes through worm 414 and drives two worm wheel 48 synchronous rotations, and corresponding threaded rod 49 rotation can be driven in the time of worm wheel 48 pivoted, because clamp 46 screw sleeve connects on threaded rod 49, thereby threaded rod 49's rotation can drive two relative spouts 411 of clamp 46 and slide, and clamp 47 of clamp 46 one end realizes the centre gripping fixed to the valve foundry goods, installs when polishing positioning fixture, rotate corresponding adjusting button 417, adjusting button 417 drives threaded shaft 416 and rotates, and threaded shaft 416's rotation realizes the thread movement of thread bush 42, thereby inserts thread bush 42 screw thread and establish in the corresponding screw hole of corresponding equipment, reaches the effect of unable adjustment base 412 position, and wherein threaded bolt 41 also can directly connect base 412 on corresponding equipment through the screw thread male mode. Thereby made things convenient for the dismouting and the transfer of positioning fixture polish, and then be applicable to the place that needs polish, use convenient and fast more.

The polishing area 5 is provided with a polishing device, and the polishing device comprises a circular upper cover 51 and a cylindrical cleaning box 52 which are matched with each other; an annular cavity 55 with an annular structure is arranged in the upper cover 51, a plurality of water spraying holes 56 which incline towards the lower part in the cleaning box 52 are arranged at the bottom of the annular cavity 55 in a circular array, and a circular water inlet pipe 57 is arranged at the upper right part of the annular cavity 55; a driving motor 53 is installed at the center of the top surface of the upper cover 51, a motor shaft 54 is installed at the lower end of the driving motor 53 through the upper cover 51 by a bearing, a placing groove 511 with a circular groove structure is arranged at the lower end of the motor shaft 54, and a plurality of water leakage holes 522 are arranged in a circular array at the bottom of the placing groove 511; a connecting groove 511 with a square groove structure is formed in the center of the lower end of the motor shaft 54, and a second connecting block 512 with a square structure is installed inside the connecting groove 511 in a matching manner; circular mounting holes 514 are formed in the upper end of the second connecting block 512 and two sides of the upper portion of the connecting groove 511, and the second connecting block 512 is fixedly mounted in the mounting holes 514 through second bolts 59; a threaded hole is vertically formed in the right end of the second bolt 59, and a screw 510 is arranged in the threaded hole in a matched mode; a connecting column 513 with a cylindrical structure is fixedly connected below the second connecting block 512, the connecting groove 511 is also formed in the bottom end of the connecting column 513, and a mounting hole 514 matched with the second bolt 59 is also formed in the middle of the connecting column; the connecting columns 513 are fixed through the matching of the second connecting block 512 and the connecting groove 515 and are sequentially connected and mounted from top to bottom; a plurality of shot blasting pipes 520 are arranged around the side wall of the cleaning box 52 in a circular array, the inner ends of the shot blasting pipes 520 are provided with shot outlets 521 with V-shaped structures, the left ends of the shot blasting pipes 520 are vertically communicated with a shot inlet pipe 518, and the upper end of the shot inlet pipe 518 is provided with a shot inlet; the lower end of the shot inlet pipe 518 is communicated with a shot blasting device 519; the bottom of the cleaning box 52 is of a spherical structure, a sand leaking hole 523 with a conical structure is formed in the center of the bottom of the cleaning box 52, and a square collecting tank 524 for collecting shot blasting particles is arranged below the sand leaking hole 523 in a matched manner; the bottom of the cleaning box 52 is provided with 4 supporting legs 525 with square column structures in a rectangular array arrangement; a square water tank 516 for storing water is arranged on the right side of the cleaning box 52, a submersible pump 517 is arranged at the bottom of the water tank 516, and the submersible pump 517 is fixedly communicated with the water inlet pipe 57 in a sealing manner through a hose; a controller 58 with a square block structure is fixedly installed at the upper part of the right side of the cleaning box 52, a control button of a motor 413 is arranged at the left part of the front of the controller 58, and a control button of a water pump is arranged at the right part of the front of the controller 58; the controller 58 is electrically connected with the driving motor 53 and the submersible pump 517. Burnishing device's structure setting, on the one hand can be through storing moisture in the basin 516, then through pressing water pump control button, open immersible pump 517, immersible pump 517 passes through the hose with moisture and inputs inlet tube 57, pours into moisture into annular chamber 55 inside through inlet tube 57, moisture is full with annular chamber 55 collection back, through hole for water spraying 56 to the inside injection of cleaning box 52, realizes that the inside dust of cleaning box 52 obtains in time clearing up to it is clean to be convenient for the inside of cleaning box 52.

On the other hand, the valve casting is placed in the placing groove 511, shot is added to the shot inlet, shot is shot-blasted into the shot blasting pipe 520 through the shot blasting device 519, the shot is thrown out from the shot outlet 521 and is thrown to the valve casting, and shot blasting cleaning of the surface of the valve casting is achieved; meanwhile, the valve casting is of a hollow structure, so that the valve casting can be sleeved outside the connecting column 513, then embedded into the connecting groove 515 through the second connecting block 512, and then hung and placed under the fixing action of the second bolt 59 and the screw 510. At this time, the motor control button controls the driving motor 53 to be electrified and rotated, and meanwhile, the shot blasting machine 519 is started to perform shot blasting operation, so that 360-degree rotary shot blasting of the valve casting can be achieved. In addition, the method is not only suitable for valve castings, but also can be used for shot blasting cleaning of cylindrical castings with hollow structures.

On the other hand, in the technical scheme of the polishing device, the structural form design of the lower end of the motor shaft 54 and the structural arrangement of the connecting column 513 and the second connecting block 512 facilitate the user to selectively install the connecting column 513, and the installation and the disassembly are also convenient, so that the installation, the disassembly and the maintenance of the components of the placing groove 511 are convenient compared with the current fixed design structure of the placing groove 511.

In addition, through the arrangement of the collecting groove 524, shot blasting particles can be collected and recovered, so that the shot blasting particles can be conveniently recycled, and the recycling efficiency of the shot blasting particles is further improved. Through the arrangement of the controller 58, the user can conveniently control the working states of the submersible pump 517 and the driving motor 53, and the operation and control of the device are convenient. And through the setting of the hole 522 that leaks, can be convenient when wasing inside the clearance case 52, the inside moisture that sprays to the standing groove 511 can in time flow downwards, does benefit to the inside drying of standing groove 511.

Preferably, the loading conveyor structure 24 includes a first steel mesh belt conveyor 2401 disposed at an incline, and a first roller conveyor 2402 engaged with the first steel mesh belt conveyor 2401 and disposed horizontally. The first steel mesh belt conveyor 2401 is arranged, and the steel mesh belt is large in friction and elastic, so that certain impact force can be borne, and the conveying of the die is facilitated.

Preferably, the blanking conveying structure 28 includes a second roller conveyor 2801 engaged with the fourth intermediate conveyor 27, a second steel mesh belt conveyor 2802 engaged with the second roller conveyor 2801 and disposed obliquely, and an oblique blanking slot 2803 engaged with the second steel mesh belt conveyor 2802; the width of the inclined blanking trough 2803 is gradually reduced from the position where the inclined blanking trough cooperates with the second steel mesh belt conveyor 2802, and a trapezoidal structure is formed after planar projection. The inclined blanking groove 2803 is made of stainless steel and is connected to the foundation through the side plate 2804 in a bolt mode, the smooth finish of the surface is guaranteed through the stainless steel, the model is prevented from being damaged, and the model can be prevented from falling on the ground through the trapezoid structure.

Preferably, the elastic structure 211 includes a first bolt 21101 screw-coupled to an end of the cylinder 210, and a spring and arc-shaped elastic piece 21103 coupled between the first bolt 21101 and the end of the cylinder 210; the arc elastic piece 21103 is of a cross-shaped structure after plane projection. Because the first spring 21102 and the arc-shaped elastic piece 21103 both have certain elasticity, when the arc-shaped elastic piece 21103 contacts with a mold, elastic deformation is generated, the first spring 21102 is slowly compressed until the arc-shaped elastic piece 21103 abuts against the end part of the cylinder 210, and at the moment, the cylinder 210 should reach the limit stroke, and the first bolt 21101 is in a suspended state and does not contact with the mold; the cross-shaped structure increases the contact area with the surface of the die, the positioning is more reliable, and the die is not damaged due to the elastic structure.

Preferably, a heat exchange structure 2101 is further arranged on the outlet pipeline 215; the heat exchanging structure 2101 comprises a heat exchanging cavity 217 disposed on the outlet pipe 215, an inlet 218 and an outlet 219 connected to the heat exchanging cavity 217, and a plurality of heat exchanging fins 220 connected to the inner wall of the outlet pipe 215. When in actual use, wax still needs to be melted, the melting point of ordinary wax is about 60 ℃, so high temperature is generated, through being provided with heat exchange structure 2101, let in cold water by import 218, export 219 discharges, carries out the heat transfer, can improve the temperature of cold water, carries out waste heat recovery, has practiced thrift the energy for by the outdoor air of export pipeline 215 discharge, the temperature reduces, has protected the environment.

Preferably, the both sides of base 412 are the symmetrical fixed mounting of both sides have fixed plate 415, installation mechanism installs in fixed plate 415, installation mechanism includes a pair of thread bush 42, two thread bush 42 is respectively threaded to be inserted and is established in fixed plate 415, two equal threaded insertion is equipped with screw shaft 416 in the thread bush 42, two for rotating the connection between the screw shaft 416, fixedly connected with fixed block 418 on the base 412, the last rotation joint of fixed block 418 has a pair of adjusting knob 417, two adjusting knob 417 cup joints with screw shaft 416 respectively. The adjusting button 417 is rotated to drive the threaded shaft 416, the threaded sleeve 42 is sleeved on the threaded shaft 416, threads of the threaded shaft 416 are inserted into the fixing plate 415, and the threaded shaft 416 rotates to drive the threaded sleeve 42 to move in a threaded manner, so that the threaded sleeve 42 can be installed on corresponding production or polishing equipment in a threaded manner, and the threaded sleeve 42 can be installed on different positions as required due to different mechanisms of different equipment and the fact that the threaded sleeve 42 is arranged on the two sides of the base 412.

Preferably, the far sides of the two clamping shafts 46 are fixedly connected with sliding shafts 43, the sliding shafts 43 penetrate through the support 44, the sliding shafts 43 are sleeved with connecting springs 45, one ends of the connecting springs 45 are fixedly connected with the clamping shafts 46, the other ends of the connecting springs 45 are fixedly connected with the support 44, the clamping blocks 47 are rotatably connected with the clamping shafts 46, and the joints of the clamping blocks 47 and the clamping shafts 46 are sleeved with return springs (not shown). When the elastic force of the return spring can keep the clamping block 47 to be clamped with the workpiece, the elastic force of the return spring has a certain adjusting space.

Preferably, be provided with the stopper (not shown in the figure) on the thread bush 42, set up the spacing groove (not shown in the figure) that corresponds with the stopper in the fixed plate 415, stopper and spacing groove joint, stopper play spacing effect, first collecting vat (not shown in the figure) has been seted up to one side of base 412, sliding connection has the fly leaf (not shown in the figure) in the first collecting vat, and when using this equipment, open the fly leaf, produced the piece in the production and processing process and collected through first collecting vat, avoid influencing the use of equipment.

Preferably, the bottom of the upper cover 51 is provided with a convex ring matched with the upper opening of the cleaning box 52, the contour diameter of the convex ring is smaller than that of the upper cover 51, and the contour diameter of the convex ring is smaller than or equal to the inner diameter of the opening of the cleaning box 52. It should be noted that the shot blasting pipe 520, the shot feeding pipe 518, the shot blasting device 519, the controller 58, the submersible pump 517 and the driving motor 53 used in the polishing apparatus are all prior art products, and therefore, specific internal structures of the prior art products belong to the technical scope that can be understood by those skilled in the art, and a description is particularly provided here and is not repeated.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A valve casting production line with high safety and automation degree is characterized by comprising a metal melting area, a wax material forming area, a pouring area, a polishing area and a polishing area, wherein the metal melting area, the wax material forming area, the pouring area, the polishing area and the polishing area are sequentially arranged according to a production sequence;

the pouring area is provided with a stepping motor, a conveying belt driven by the stepping motor and a travelling crane used for carrying a pouring ladle, the travelling crane runs back and forth between the metal melting area and the pouring area, the conveying belt is provided with a plurality of forming dies sequentially arranged along the conveying belt, the bottom of the pouring ladle is provided with a liquid outlet valve, the bottom of the pouring ladle is provided with a supporting leg, the length of the supporting leg is longer than that of the liquid outlet valve, the liquid outlet valve is also provided with a flow guide device matched with the liquid outlet valve, the flow guide device comprises a vertical joint, an inclined flow guide pipe and a flow-assisting pipe, one end of the vertical joint is matched and connected with the liquid outlet valve, the other end of the vertical joint is communicated with one end of the inclined flow guide pipe, the inclined flow guide pipe is internally provided with a spiral channel, and one end of the flow-assisting pipe is communicated with one end of the, one end of the inclined flow guide pipe, which is far away from the vertical joint, is in an inclined notch shape;

2. A valve casting line with high safety and automation as claimed in claim 1 wherein the feeding conveyor structure includes a first steel mesh belt conveyor arranged obliquely and a first roller conveyor cooperating with the first steel mesh belt conveyor and arranged horizontally.

3. The valve casting line with high safety and automation degree as claimed in claim 1, wherein the blanking conveying structure comprises a second roller conveyor engaged with a fourth intermediate conveyor, a second steel mesh belt conveyor engaged with the second roller conveyor and arranged obliquely, and an oblique blanking slot engaged with the second steel mesh belt conveyor; the width dimension of the inclined blanking groove is gradually reduced from the part matched with the second steel mesh belt conveyor downwards, and a trapezoidal structure is formed after plane projection.

4. A safe and highly automated valve casting line as claimed in claim 1, wherein the elastic structure comprises a bolt screwed to an end of the cylinder, and a spring and an arc-shaped elastic piece connected between the bolt and the end of the cylinder; the arc-shaped elastic sheet is of a cross-shaped structure after plane projection.

5. The valve casting production line with high safety and automation degree as claimed in claim 1, characterized in that a heat exchange structure is further arranged on the outlet pipeline; the heat exchange structure comprises a heat exchange cavity arranged on the outlet pipeline, an inlet and an outlet connected to the heat exchange cavity, and a plurality of heat exchange fins connected to the inner wall of the outlet pipeline.

6. The valve casting production line with high safety and automation degree as claimed in claim 1, wherein the fixed plates are symmetrically and fixedly installed on both sides of the base, the installation mechanism is installed in the fixed plates, the installation mechanism includes a pair of threaded sleeves, two threaded sleeves are respectively and threadedly inserted into the fixed plates, threaded shafts are respectively and threadedly inserted into the two threaded sleeves, the two threaded shafts are rotatably connected, a fixed block is fixedly connected to the base, a pair of adjusting knobs are rotatably clamped on the fixed block, and the two adjusting knobs are respectively and threadedly sleeved with the threaded shafts.

7. The valve casting production line with high safety and automation degree as claimed in claim 1, characterized in that one far side of the two clamp shafts is fixedly connected with a slide shaft, the slide shaft passes through a support, the slide shaft is sleeved with a connecting spring, one end of the connecting spring is fixedly connected with the clamp shaft, the other end of the connecting spring is fixedly connected with the support, the clamp block is rotatably connected with the clamp shaft, and a return spring is sleeved at the joint of the clamp block and the clamp shaft.

8. The valve casting production line with high safety and automation degree as claimed in claim 6, wherein a limiting block is arranged on the threaded sleeve, a limiting groove corresponding to the limiting block is formed in the fixing plate, the limiting block is clamped with the limiting groove, a collecting groove is formed in one side of the base, and a movable plate is slidably connected in the collecting groove.

9. The valve casting production line with high safety and automation degree as claimed in claim 1, wherein the bottom of the upper cover is provided with a convex ring matched with the upper opening of the cleaning box, the outline diameter of the convex ring is smaller than that of the upper cover, and the outline diameter of the convex ring is smaller than or equal to the inner diameter of the opening of the cleaning box.