阅读说明：本技术 一种多孔位自动浇铸机 (Multi-hole-site automatic casting machine ) 是由 胥志勇 于 2020-07-28 设计创作，主要内容包括：本发明公开了一种多孔位自动浇铸机,以浇包抽底式浇铸方式代替浇包倾转浇铸方式,解决浇包流量不易控制、顶面的金属液体冷却较快,浮渣较多,只能单对单对模具进行浇铸,速度慢,产量低,效果差的问题,利用多孔位浇铸开关,可以同时浇铸多个模具,互不影响,提升效率,利用浇包行走装置,浇包可以全方位移动,安全运行,适用于各种浇铸环境和各规格的模具,浇包内设置液位探测装置,可以随时知晓浇包内金属液体的多少,及时补充物料,利用弧形挡渣板不仅可以将浮渣、杂质以及提前冷却物与熔融金属液体分离开,也便于清理,提高浇铸效率。(The invention discloses a multi-hole-position automatic casting machine, which replaces a ladle tilting casting mode with a ladle bottom-drawing casting mode, solves the problems that the flow of a ladle is difficult to control, the cooling of metal liquid on the top surface is high, the scum is more, only a single pair of moulds can be cast, the speed is low, the yield is low and the effect is poor, can simultaneously cast a plurality of moulds without mutual influence by using a multi-hole-position casting switch, improves the efficiency, can move all around by using a ladle travelling device, runs safely, is suitable for moulds in various casting environments and specifications, is provided with a liquid level detection device in a ladle, can know the amount of the metal liquid in the ladle at any time, supplements materials in time, can separate the scum, impurities and pre-cooled substances from the molten metal liquid by using an arc slag baffle plate, is convenient to clean and improves the casting efficiency.)

1. A porous position automatic casting machine which characterized in that: the casting device comprises a casting ladle (1), a casting bracket (2), a casting supporting arm (3), a casting tower (12) and a bearing type walking trolley (13), wherein the casting bracket (2) is slidably mounted on the casting supporting arm (3), first hydraulic cylinders (4) are symmetrically mounted on two sides of the casting supporting arm (3), the first hydraulic cylinders (4) drive the casting bracket (2) to move back and forth on the casting supporting arm (3), a plurality of casting ports are arranged at the bottom of the casting ladle (1) side by side, a casting switch (5) is arranged on each casting port, and the casting switches (5) are divided into a bottom-drawing switch (6) and a single-drawing rotating switch (7);

the casting supporting arm (3) is slidably mounted on the casting tower (12) through a composite lifting mechanism (14), the casting tower (12) is vertically mounted on the bearing type walking trolley (13), and the bearing type walking trolley (13) is mounted on a ground track (20) in a rolling mode;

the bearing type walking trolley (13) comprises a trolley body (131), a speed regulating motor (132) and rollers (133), wherein the trolley body (131) is arranged on the ground track (20) in a rolling mode through the rollers (133), the speed regulating motor (132) drives the rollers (133) to rotate, a counterweight mounting frame (134) is arranged at one end of the trolley body (131), distance sensors (135) for obstacles are arranged on two sides of the trolley body (131), and the distance sensors (135) control the speed regulating motor (132) to start and stop through a PLC (programmable logic controller);

the pouring ladle (1) is provided with a liquid level detection device (21), the liquid level detection device (21) comprises a high-temperature fire-resistant floating ball (211), a blocking ball (212) and a high-temperature fire-resistant floating rod (213), the high-temperature fire-resistant floating rod (213) vertically penetrates through a detection hole in the upper surface of the pouring ladle (1), the high-temperature fire-resistant floating ball (211) is installed at the bottom of the high-temperature fire-resistant floating rod (213), the blocking ball (212) is installed at the fixed part of the high-temperature fire-resistant floating rod (213), and scales are arranged on the high-temperature fire-resistant floating rod (213);

an arc-shaped slag trap (22) is further arranged in the casting ladle (1), sieve holes are formed in the arc-shaped slag trap (22), and the bottom of the arc-shaped slag trap (22) is close to the casting opening;

the PLC controller also controls the electric equipment and the hydraulic equipment to work through a remote controller.

2. The machine according to claim 1, characterized in that: take out end switch (6) and include overhead gage (8), lower baffle (9), screw thread loop bar (10) and motor (11), overhead gage (8) are installed on the casting gate, be provided with on overhead gage (8) with first discharge gate (81) of casting gate intercommunication, motor (11) are installed on the lower surface of casting trailing arm (3) one end, the output horizontally connect of motor (11) has screw thread loop bar (10), screw thread loop bar (10) with the side of baffle (9) is connected down, motor (11) drive screw thread loop bar (10) drive baffle (9) are sealed down first discharge gate (81) of overhead gage (8).

3. The machine according to claim 2, characterized in that: the threaded sleeve rod (10) comprises a threaded pipe (101) with an internal thread and a threaded rod (102) with an external thread, the threaded rod (102) is rotatably installed in the threaded pipe (101), the threaded pipe (101) is horizontally connected with the output end of the motor (11), and the outer end of the threaded rod (102) is connected with the side wall of the lower baffle plate (9).

4. A multi-site automatic casting machine according to claim 3, characterized in that: singly draw rotary switch (7) to do down the one end of baffle (9) with the one end of overhead gage (8) is rotated and is connected, be provided with down on baffle (9) with first discharge gate (81) assorted second discharge gate (91), the side of baffle (9) is provided with extension arm (18) down, the outer end of threaded rod (102) pass through hinged-support (17) with the outer end of extension arm (18) is connected, hinged-support (17) are installed on the slider, the slider slidable mounting be in the sliding tray of the side of extension arm (18).

5. The machine according to claim 1, characterized in that: the combined type lifting mechanism (14) comprises a second hydraulic cylinder (141), a movable pulley (142), a steering wheel (143), a transfer wheel (144), a fixed pulley (145) and a steel wire rope (146), wherein the second hydraulic cylinder (141) is symmetrically installed on two sides of the bearing type walking trolley (13) along the horizontal direction, the movable pulley (142) is rotatably installed on the output end of the second hydraulic cylinder (141), the steering wheel (143) is symmetrically installed on the bearing type walking trolley (13) through a cross beam (19), the transfer wheel (144) is symmetrically installed on two sides of the casting supporting arm (3), the fixed pulley (145) is installed on the casting supporting arm (3), one end of the steel wire rope (146) is fixed on the bearing type walking trolley (13), and the other end of the steel wire rope (146) sequentially penetrates through the movable pulley (142), the steering wheel (143), the transfer wheel (144) and the fixed pulley (145) and is fixed on the casting supporting arm (3), the second hydraulic cylinder (141) drives the steel wire rope (146) to drive the casting supporting arm (3) to move up and down.

6. The machine according to claim 5, characterized in that: the movable pulley (142), the steering wheel (143), the middle rotating wheel (144) and the fixed pulley (145) are all concave wheels, and the concave surfaces are all provided with anti-skid threads.

7. The machine according to claim 5, characterized in that: sliding frames (31) are symmetrically arranged below two sides of the casting supporting arm (3), a plurality of groups of guide wheels (32) are rotatably arranged on two sides of each sliding frame (31), and the outer surfaces of the guide wheels (32) are tightly abutted to the casting tower (12).

8. The machine according to claim 5, characterized in that: the top of the casting tower (12) is provided with a safety limiting bulge (121) used for the casting supporting arm (3), and the bottom of the casting tower (12) is provided with a safety limiting support (122) used for the casting supporting arm (3).

9. The machine according to claim 5, characterized in that: and a linear displacement inductor (16) is arranged between the casting tower (12) and the casting supporting arm (3).

Technical Field

The invention relates to the technical field of casting equipment, in particular to a multi-hole-site automatic casting machine.

Background

In recent years, along with continuous innovation of casting technology and development and popularization and application of hydraulic technology, single chip microcomputer technology and PLC technology, the ancient casting industry has changed from the top to the bottom, the production means and the organization mode of traditional casting are thoroughly changed, particularly, the continuous improvement of the casting technology and the improvement of the automation degree of casting equipment can effectively control the forming processes of filling, solidification, microstructure distribution, shrinkage porosity, shrinkage cavity and the like of castings, can greatly improve the production efficiency and economic benefit, and has important significance for casting production. The most used casting process at present is a tilting gravity casting method, which is a casting production method that liquid flows into a cavity by the change of an inclination angle of a casting mold or a metal mold in the tilting process.

The tilting casting process is mainly suitable for large-scale complex aluminum-silicon alloy castings. Although many factories adopt the tilting casting process and have many forming technologies at present, the development and application of the tilting casting machine control technology are irregular, the tilting casting machine is particularly used for medium and small enterprises, the tilting gravity casting machine for producing small-batch and large-scale complex aluminum alloy castings is still originally controlled, a relay-contactor system is adopted, a hydraulic system is controlled by inching to work, the quality of the castings cannot be ensured, the flow of a ladle is difficult to control, the cooling of the molten metal on the top surface is fast, and more scum exists, particularly, the defects of castings with complex structure, uneven wall thickness, high size precision and high mechanical property requirements, such as oxidized slag inclusion, air hole bubbles, shrinkage porosity cracks, cold shut, pinholes and the like, are frequently generated. In addition, the relay-contactor control system has poor reliability, a large number of parts, a complex structure, a large volume, low working efficiency and inconvenient manufacture, adjustment, use and maintenance.

The applicant provides a multi-hole-position automatic casting machine through research design and long-term experiments, a ladle bottom-drawing type casting mode is used for replacing a ladle tilting casting mode, the problems that the flow of a ladle is difficult to control, the cooling of metal liquid on the top surface is fast, the scum is more, only a single pair of moulds can be cast, the speed is slow, the yield is low, and the effect is poor are solved, a multi-hole-position casting switch is utilized, can simultaneously cast a plurality of moulds without mutual influence and improve the efficiency, utilizes the casting ladle travelling device, the casting ladle can move in all directions and run safely, is suitable for moulds in various casting environments and specifications, a liquid level detecting device is arranged in the casting ladle, can know at any time how much of metal liquid in the ladle, in time supply the material, utilize arc slag trap not only can separate dross, impurity and the thing that cools off in advance and molten metal liquid, also be convenient for clear up, improve casting efficiency.

Disclosure of Invention

The invention aims to provide a multi-hole-site automatic casting machine, which solves the problems that the flow of a casting ladle is difficult to control, the cooling of metal liquid on the top surface is fast, the scum is more, the operation environment is limited and unsafe, the casting is carried out by a single body, and the casting efficiency is extremely low when the traditional casting machine is used for casting.

In order to solve the technical problems, the invention adopts the following technical scheme:

a multi-hole-site automatic casting machine comprises a casting ladle, a casting bracket, a casting supporting arm, a casting tower and a bearing type travelling trolley, wherein the casting bracket is slidably mounted on the casting supporting arm, first hydraulic cylinders are symmetrically mounted on two sides of the casting supporting arm and drive the casting bracket to move back and forth on the casting supporting arm, a plurality of casting openings are arranged at the bottom of the casting ladle side by side, a casting switch is arranged on each casting opening, and the casting switches are divided into a bottom-drawing switch and a single-pull rotating switch;

the casting supporting arm is slidably mounted on the casting tower through a composite lifting mechanism, the casting tower is vertically mounted on the bearing type walking trolley, and the bearing type walking trolley is mounted on a ground track in a rolling mode;

the bearing type walking trolley comprises a trolley body, a speed regulating motor and rollers, wherein the trolley body is arranged on the ground track in a rolling mode through the rollers, the speed regulating motor drives the rollers to rotate, a counterweight block mounting frame is arranged at one end of the trolley body, distance sensors for obstacles are arranged on two sides of the trolley body, and the distance sensors control the speed regulating motor to start and stop through a PLC (programmable logic controller);

the pouring ladle is provided with a liquid level detection device, the liquid level detection device comprises a high-temperature fire-resistant floating ball, a blocking ball and a high-temperature fire-resistant floating rod, the high-temperature fire-resistant floating rod vertically penetrates through a detection hole in the upper surface of the pouring ladle, the high-temperature fire-resistant floating ball is installed at the bottom of the high-temperature fire-resistant floating rod, the blocking ball is installed at the fixed part of the high-temperature fire-resistant floating rod, and scales are arranged on the high-temperature fire-resistant floating rod;

an arc-shaped slag trap is further arranged in the casting ladle, sieve holes are formed in the arc-shaped slag trap, and the bottom of the arc-shaped slag trap is close to the casting opening;

the PLC controller also controls the electric equipment and the hydraulic equipment to work through a remote controller.

The further technical scheme is as follows: the bottom-drawing switch comprises an upper baffle, a lower baffle, a thread sleeve rod and a motor, wherein the upper baffle is installed on the casting gate, a first discharge hole communicated with the casting gate is formed in the upper baffle, the motor is installed on the lower surface of one end of the casting supporting arm, the output end of the motor is horizontally connected with the thread sleeve rod, the thread sleeve rod is connected with the side face of the lower baffle, the motor drives the thread sleeve rod to drive the lower baffle to seal the first discharge hole of the upper baffle.

The further technical scheme is as follows: the threaded sleeve rod comprises a threaded pipe with an internal thread and a threaded rod with an external thread, the threaded rod is rotatably installed in the threaded pipe, the threaded pipe is horizontally connected with the output end of the motor, and the outer end of the threaded rod is connected with the side wall of the lower baffle.

The further technical scheme is as follows: the single-pull rotary switch is that the one end of baffle down with the one end of overhead gage is rotated and is connected, be provided with down on the baffle with first discharge gate assorted second discharge gate, the side of baffle is provided with the extension arm down, the outer end of threaded rod pass through the hinged-support with the outer end of extension arm is connected, the hinged-support is installed on the slider, the slider slidable mounting be in the sliding tray of the side of extension arm.

The further technical scheme is as follows: the combined type lifting mechanism comprises a second hydraulic cylinder, a movable pulley, a steering wheel, a middle rotating wheel, a fixed pulley and a steel wire rope, wherein the second hydraulic cylinder is symmetrically installed on two sides of the bearing type walking trolley along the horizontal direction, the movable pulley is rotatably installed on the output end of the second hydraulic cylinder, the steering wheel is symmetrically installed on the bearing type walking trolley through a cross beam, the middle rotating wheel is symmetrically installed on two sides of the casting supporting arm, the fixed pulley is installed on the casting supporting arm 3, one end of the steel wire rope is fixed on the bearing type walking trolley, the other end of the steel wire rope sequentially penetrates through the movable pulley, the steering wheel, the middle rotating wheel and the fixed pulley and is fixed on the casting supporting arm, and the second hydraulic cylinder drives the steel wire rope to drive the casting supporting arm to move up and down.

The further technical scheme is as follows: the movable pulley, the steering wheel, the middle rotating wheel and the fixed pulley are all concave wheels, and the concave surfaces are all provided with anti-skid lines.

The further technical scheme is as follows: sliding frames are symmetrically arranged below two sides of the casting supporting arm, a plurality of groups of guide wheels are rotatably arranged on two sides of each sliding frame, and the outer surfaces of the guide wheels tightly support the casting tower.

The further technical scheme is as follows: the top of the casting tower is provided with a safety limiting bulge used for the casting supporting arm, and the bottom of the casting tower is provided with a safety limiting support used for the casting supporting arm.

The further technical scheme is as follows: and a linear displacement sensor is arranged between the casting tower and the casting supporting arm.

Compared with the prior art, the invention can at least achieve one of the following beneficial effects:

1. the invention provides a multi-hole-site automatic casting machine, wherein a plurality of parallel casting holes are formed in the bottom of a casting ladle of the multi-hole-site automatic casting machine, casting switches are arranged on the casting holes and are divided into a bottom-drawing switch and a single-pull rotating switch, the operation is convenient and rapid, the traditional tilting casting mode can be changed into a bottom casting mode by utilizing the casting switches, the casting switches are convenient to control the flow of metal liquid in the casting ladle, the casting efficiency is improved, and the problems that the metal liquid on the top surface of an opening of the casting ladle in the traditional tilting casting mode is cooled quickly, more scum exists, only a single pair of dies can be cast, the speed is slow, the yield is low, and the effect is poor are solved; the traditional hydraulic lifting mechanism is changed into hydraulic-pulley block combined type lifting, the second hydraulic cylinder is sufficient in power and can jack up a large and heavy object, the effect of reversing and stroke changing can be achieved by combining the pulley block, the stroke size of the second hydraulic cylinder is specifically determined by the number of the pulley block, and the problems that the stroke of the traditional hydraulic cylinder is insufficient and the power of a motor is insufficient are solved. A

2. The bearing type walking trolley of the multi-hole-position automatic casting machine is provided with the balancing weight mounting frame, the pouring ladle can be assembled according to the actual production condition and the weight of the pouring ladle to be heavier, the balancing weight is increased, otherwise, the weight is reduced, the walking of the trolley body can be solved, the problem of the inclination of the trolley body is solved, distance sensors for obstacles are arranged on two sides of the trolley body, the obstacles can be sensed timely to comprise people, the trolley body is prevented from being overweight, when the inertia is overlarge, the accident is caused by overlong brake distance, the safety is ensured, the adjustable speed motor is mounted on each wheel, and the overweight trolley body can be started smoothly.

3. Set up liquid level detection device in watering the package, can know at any time and water how much of interior metal liquid of package, in time supply the material, utilize arc slag trap not only can separate dross, impurity and the thing that cools off in advance and molten metal liquid, the clearance of also being convenient for improves casting efficiency.

Drawings

FIG. 1 is a schematic structural diagram of an automatic casting machine with multiple holes according to the present invention.

Fig. 2 is a schematic structural diagram of the composite lifting mechanism shown in fig. 1 according to the present invention.

Fig. 3 is a schematic structural view of the casting bracket, the casting bracket and the ladle in fig. 1 according to the present invention.

Fig. 4 is a schematic structural view of the cast switch of fig. 1 according to the present invention.

Fig. 5 is a schematic structural diagram of the bottom-drawing switch in fig. 1 according to the present invention.

Fig. 6 is a schematic structural view of the single-pull rotary switch shown in fig. 1 according to the present invention.

Reference numerals: 1. casting a ladle; 2. casting a bracket; 3. casting a supporting arm; 31. a carriage; 32. a guide wheel; 4. a first hydraulic cylinder; 5. a casting switch; 6. a bottom-drawing switch; 7. a single pull rotary switch; 8. an upper baffle plate; 81. a first discharge port; 9. a lower baffle plate; 91. a second discharge port; 10. a threaded rod; 101. a threaded pipe; 102. a threaded rod; 11. a motor; 12. a casting tower; 121. a safety limit bulge; 122. a safety limit bracket; 13. a load-bearing type walking trolley; 131. a vehicle body; 132. a speed-regulating motor; 133. a roller; 134. a counterweight block mounting frame; 135. a distance sensor; 14. a composite lifting mechanism; 141. a second hydraulic cylinder; 142. a movable pulley; 143. a steering wheel; 144. a middle rotating wheel; 145. a fixed pulley; 146. a wire rope; 16. a linear displacement sensor; 17. a hinged support; 18. a lengthening arm; 19. a beam, 20, a ground track; 21. a bit detection device; 211. a high temperature refractory float ball; 212. a baffle ball 213, a high-temperature fire-resistant floating rod; 22. an arc slag trap.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.