阅读说明：本技术 一种铸造用金属液转移装置 (Molten metal transfer device for casting ) 是由 郑孙 于 2021-07-08 设计创作，主要内容包括：本发明适用于金属铸造技术领域,提供了一种铸造用金属液转移装置,包括：支撑结构,形成支撑主体,其上开设有与金属液转移方向一致滑动槽。移动架,滑动嵌套在滑动槽的内部。传动结构,转动设置在移动架的内部,其与支撑结构接触。电机,安装在移动架上,其与传动结构连接,用于驱动传动结构转动使移动架沿着滑动槽方向移动。抓取结构,连接在移动架上,所述抓取结构包括：转动柱、安装架、伸缩结构和抓取架,转动柱连接在移动架的底部,安装架和伸缩结构安装在转动柱上,抓取架固定连接在安装架上。位置传感器,安装在支撑结构上,用于感应移动架的位置信息,并输出移动架的位置信号。控制器,用于接收位置传感器输出移动架的位置信号。(The invention is suitable for the technical field of metal casting, and provides a molten metal transfer device for casting, which comprises: the supporting structure forms a supporting main body, and a sliding groove consistent with the transfer direction of molten metal is formed in the supporting main body. The movable frame is slidably nested inside the sliding groove. The transmission structure is rotatably arranged inside the movable frame and is in contact with the supporting structure. And the motor is arranged on the movable frame, is connected with the transmission structure and is used for driving the transmission structure to rotate so as to enable the movable frame to move along the direction of the sliding groove. Snatch the structure, connect on removing the frame, it includes to snatch the structure: rotate post, mounting bracket, extending structure and snatch the frame, rotate the column connection in the bottom that removes the frame, mounting bracket and extending structure install on rotating the post, snatch a fixed connection on the mounting bracket. And the position sensor is arranged on the supporting structure and used for sensing the position information of the movable frame and outputting a position signal of the movable frame. And the controller is used for receiving the position signal of the movable frame output by the position sensor.)

1. A molten metal transfer device for casting, characterized by comprising:

the supporting structure forms a supporting main body, a sliding groove consistent with the metal liquid transfer direction is formed in the supporting main body, and the liquid charging position and the liquid pouring position of the metal liquid barrel are arranged in the transfer direction;

the movable frame is slidably nested in the sliding groove, takes the sliding groove as a sliding support and forms an installation main body;

the transmission structure is rotatably arranged inside the movable frame and is in contact with the supporting structure;

the motor is arranged on the movable frame, is connected with the transmission structure and is used for driving the transmission structure to rotate so as to enable the movable frame to move along the direction of the sliding groove;

snatch the structure, connect on removing the frame, it includes to snatch the structure: the device comprises a rotating column, a mounting frame, a telescopic structure and a grabbing frame, wherein the rotating column is connected to the bottom of a moving frame;

the grasping piece includes: the metal liquid tank matched meshing structure is arranged on a clamping surface of the clamping piece, a limiting groove is formed in the periphery of the clamping piece, a limiting rod is fixedly arranged on the inner side of the bottom of the grabbing frame, the limiting groove is slidably nested on the limiting rod to guide the clamping piece, a push rod is fixedly connected with the telescopic end of the telescopic structure, two ends of the push rod are fixedly connected with a transmission rack, and the transmission rack is meshed with the rotating gear;

the position sensor is arranged on the supporting structure, comprises a first position sensor and a second position sensor and is used for sensing the position information of the movable frame and outputting a position signal of the movable frame, the first position sensor is arranged at the liquid filling position of the molten metal tank, and the second position sensor is arranged at the liquid pouring position of the molten metal tank;

the controller is used for receiving a position signal of the movable frame output by the position sensor; when the movable frame and the grabbing structure reset, the movable frame returns to a liquid filling position, the first position sensor senses the position of the movable frame, the controller motor stops running, the movable frame stops sliding and stays at the liquid filling position, the controller controls the telescopic structure to drive the transmission rack to slide and enable the rotation gear to rotate, the rotation gear drives the clamping piece to rotate, the metal liquid box is limited by the grabbing frame in a blocking mode and cannot rotate, the screw rod rotates to enable the clamping piece to be far away from the metal liquid box and move axially on the screw rod to be separated from the metal liquid box, the limiting rod enters the limiting groove to limit the rotation of the clamping piece, and the metal liquid box is separated from the clamping piece; the controller controls the telescopic structure to delay a contraction signal, an empty metal liquid box is transferred away, the metal liquid box filled with metal liquid moves to a position between the clamping pieces, the telescopic structure pushes the transmission rack to slide, the transmission rack slides to drive the rotation gear to rotate, the rotation gear rotates to drive the screw rod to rotate, the clamping pieces are driven to move towards the metal liquid box, and the clamping surfaces on the clamping pieces are in contact with the metal liquid box and are meshed through the meshing structure; when the clamping piece is contacted with the molten metal box, the limiting rod is separated from the limiting groove, the clamping pieces at two ends clamp the molten metal box from two ends of the molten metal box, and the molten metal box is moved to a liquid pouring position on the supporting structure through the moving frame; the second position sensor senses that the movable frame reaches a liquid pouring position; the motor stops the operation and extending structure promotes the transmission rack and continues to move, and the transmission rack drives the rotating gear and continues to rotate, and holder and the metal liquid case at this moment drive the metal liquid case through the meshing structure meshing and rotate, empty out the inside metal liquid of metal liquid case.

2. The molten metal transferring device for casting according to claim 1, wherein the grabbing structure is rotatably connected to the moving frame, the grabbing structure is coaxially and fixedly connected with a steering gear, the supporting structure is fixedly connected with a driving bar, when the moving frame slides on the sliding groove, the steering gear is engaged with the driving bar during moving, and the driving bar drives the steering gear to rotate so as to steer the grabbing structure.

3. The molten metal transfer device for casting according to claim 2, wherein the steering gear includes a gear portion and a flat portion, and the transmission bar includes a stopper portion and a rack portion; the limiting parts are fixedly arranged at two ends of the rack part, the distance between the contact surface of the limiting part and the axle center of the steering gear is the same as that between the contact surface of the limiting part and the axle center of the plane part, and the distance between the meshing surface of the rack part and the axle center of the steering gear is the same as that between the meshing surface of the rack part and the radius of the gear part; the circumferential length of the gear part is consistent with the length of the rack part, and the angle of the gear part is consistent with the rotation angle of the grabbing structure; when spacing portion and plane portion contact to the formation blocks and avoids snatching the structure and rotate, when steering gear moved rack portion position, gear portion and rack portion meshing, rack portion drive steering gear rotate make snatch the structure and rotate to empty the direction back plane portion and spacing portion contact, rotate to snatching the structure and restrict.

4. The molten metal transfer apparatus for casting according to claim 1, wherein a sliding structure for reducing friction and sliding guide is provided between the moving frame and the sliding groove.

5. The molten metal transferring apparatus for casting according to claim 4, wherein the sliding structure comprises a roller and a rail structure, the roller is rotatably connected to the bottom of the movable frame, the rail is fixedly connected to the sliding groove, and the roller is rotatably disposed on the rail.

6. The molten metal transferring device for casting according to claim 4, wherein the sliding structure comprises a sliding groove and a protrusion, the sliding groove is formed in the sliding groove, the protrusion is connected to the moving frame, the protrusion is slidably embedded in the sliding groove, a guide rod in the same sliding direction as the moving frame is fixedly arranged in the sliding groove, the guide rod slidably penetrates through the protrusion, a linear bearing is arranged in the protrusion, and the linear bearing is slidably embedded in the guide rod.

7. The molten metal transferring apparatus for casting according to claim 1, wherein the engaging structure comprises a groove, an embedded groove and a protruding block, the embedded groove is provided on an outer side wall of the top of the molten metal tank and forms an embedded guide structure of the screw, the groove and the protruding block are provided on an outer side wall of the molten metal tank and the holding member, respectively, and when the holding member is in contact with the molten metal tank, the groove and the protruding block are nested with each other to form the engaging structure.

8. The molten metal transferring device for casting according to claim 1, wherein the transmission structure comprises a driving gear and a transmission gear, the driving gear and the transmission gear are respectively and rotatably connected to the moving frame, the driving gear is engaged with the transmission gear, racks are fixedly arranged on two side walls of the sliding groove, and the driving gear and the transmission gear are respectively engaged with the racks on two sides to enable the moving frame to be driven by driving forces on two sides to move.

9. The molten metal transfer device for casting according to claim 1, wherein the screw is a screw-grooved screw, and the holding member is rotatably provided with balls inside, and the balls are slidably fitted inside the screw grooves.

10. The casting molten metal transfer device according to claim 1, wherein a mounting plate is fixedly provided at the bottom of the support structure, the mounting plate is provided with through holes, and screws are inserted through the through holes to fix the mounting plate to the ground.

Technical Field

The invention belongs to the technical field of metal casting, and particularly relates to a molten metal transfer device for casting.

Background

Casting is a relatively early metal hot working process mastered by human beings, and has a history of about 6000 years. Is an important tool for human manufacturing tools, and this method is also being used today. With the continuous progress of casting technology, the performance requirements of castings are higher and higher, and the quality of molten metal plays a decisive role in the performance of the castings. In the casting process, a certain position difference exists between the smelting furnace and the mould, molten metal needs to be transferred from the smelting position to the position of the grinding tool, or the molten metal needs to be transferred by replacing the smelting furnace or monitoring the molten metal. But at present there is not one can carry out the equipment that high efficiency shifted to the molten metal, mostly need rely on manual operation, hangs the molten metal case through the hawser and lifts and shift, can cause the transfer in-process of molten metal case unstability like this and rock easily, and the high temperature of molten metal has certain danger to operating personnel.

Disclosure of Invention

The embodiment of the invention aims to provide a molten metal transfer device for casting, aiming at solving the problem that the molten metal is easy to shake in the process of transferring.

The present invention is achieved as described above, and the molten metal transfer apparatus for casting includes:

the supporting structure forms a supporting main body, a sliding groove consistent with the metal liquid transfer direction is formed in the supporting main body, and the liquid charging position and the liquid pouring position of the metal liquid barrel are arranged in the transfer direction;

the movable frame is slidably nested in the sliding groove, takes the sliding groove as a sliding support and forms an installation main body;

the transmission structure is rotatably arranged inside the movable frame and is in contact with the supporting structure;

the motor is arranged on the movable frame, is connected with the transmission structure and is used for driving the transmission structure to rotate so as to enable the movable frame to move along the direction of the sliding groove;

snatch the structure, connect on removing the frame, it includes to snatch the structure: the device comprises a rotating column, a mounting frame, a telescopic structure and a grabbing frame, wherein the rotating column is connected to the bottom of a moving frame;

the grasping piece includes: the metal liquid tank matched meshing structure is arranged on a clamping surface of the clamping piece, a limiting groove is formed in the periphery of the clamping piece, a limiting rod is fixedly arranged on the inner side of the bottom of the grabbing frame, the limiting groove is slidably nested on the limiting rod to guide the clamping piece, a push rod is fixedly connected with the telescopic end of the telescopic structure, two ends of the push rod are fixedly connected with a transmission rack, and the transmission rack is meshed with the rotating gear;

the position sensor is arranged on the supporting structure, comprises a first position sensor and a second position sensor and is used for sensing the position information of the movable frame and outputting a position signal of the movable frame, the first position sensor is arranged at the liquid filling position of the molten metal tank, and the second position sensor is arranged at the liquid pouring position of the molten metal tank;

the controller is used for receiving a position signal of the movable frame output by the position sensor; when the movable frame and the grabbing structure reset, the movable frame returns to a liquid filling position, the first position sensor senses the position of the movable frame, the controller motor stops running, the movable frame stops sliding and stays at the liquid filling position, the controller controls the telescopic structure to drive the transmission rack to slide and enable the rotation gear to rotate, the rotation gear drives the clamping piece to rotate, the metal liquid box is limited by the grabbing frame in a blocking mode and cannot rotate, the screw rod rotates to enable the clamping piece to be far away from the metal liquid box and move axially on the screw rod to be separated from the metal liquid box, the limiting rod enters the limiting groove to limit the rotation of the clamping piece, and the metal liquid box is separated from the clamping piece; the controller controls the telescopic structure to delay a contraction signal, an empty metal liquid box is transferred away, the metal liquid box filled with metal liquid moves to a position between the clamping pieces, the telescopic structure pushes the transmission rack to slide, the transmission rack slides to drive the rotation gear to rotate, the rotation gear rotates to drive the screw rod to rotate, the clamping pieces are driven to move towards the metal liquid box, and the clamping surfaces on the clamping pieces are in contact with the metal liquid box and are meshed through the meshing structure; when the clamping piece is contacted with the molten metal box, the limiting rod is separated from the limiting groove, the clamping pieces at two ends clamp the molten metal box from two ends of the molten metal box, and the molten metal box is moved to a liquid pouring position on the supporting structure through the moving frame; the second position sensor senses that the movable frame reaches a liquid pouring position; the motor stops the operation and extending structure promotes the transmission rack and continues to move, and the transmission rack drives the rotating gear and continues to rotate, and holder and the metal liquid case at this moment drive the metal liquid case through the meshing structure meshing and rotate, empty out the inside metal liquid of metal liquid case.

Preferably, snatch the structure and rotate to be connected on removing the frame, snatch the coaxial fixedly connected with steering gear of structure, fixedly connected with drive strip on the bearing structure, when the movable frame slides on the sliding tray, steering gear removes in-process and meshes with the drive strip, and the drive strip moves steering gear and rotates and make and snatch the structure and turn to.

Preferably, the steering gear comprises a gear part and a plane part, and the transmission bar comprises a limit part and a rack part; the limiting parts are fixedly arranged at two ends of the rack part, the distance between the contact surface of the limiting part and the axle center of the steering gear is the same as that between the contact surface of the limiting part and the axle center of the plane part, and the distance between the meshing surface of the rack part and the axle center of the steering gear is the same as that between the meshing surface of the rack part and the radius of the gear part; the circumferential length of the gear part is consistent with the length of the rack part, and the angle of the gear part is consistent with the rotation angle of the grabbing structure; when spacing portion and plane portion contact to the formation blocks and avoids snatching the structure and rotate, when steering gear moved rack portion position, gear portion and rack portion meshing, rack portion drive steering gear rotate make snatch the structure and rotate to empty the direction back plane portion and spacing portion contact, rotate to snatching the structure and restrict.

Preferably, a sliding structure for reducing friction and guiding sliding is provided between the moving frame and the sliding groove.

Preferably, the sliding structure comprises a roller and a guide rail structure, the roller is rotatably connected to the bottom of the movable frame, the rail is fixedly connected to the sliding groove, and the roller is placed on the guide rail in a rolling mode.

Preferably, the sliding structure comprises a sliding groove and a protrusion, the sliding groove is formed in the sliding groove, the protrusion is connected to the moving frame and is slidably nested in the sliding groove, a guide rod which is identical to the sliding direction of the moving frame is fixedly arranged in the sliding groove and penetrates through the protrusion in a sliding mode, a linear bearing is arranged in the protrusion, and the linear bearing is slidably nested on the guide rod.

Preferably, the meshing structure includes recess, embedded groove and protrusion piece, and the embedded groove is seted up on the top lateral wall of molten metal case and is formed the embedding guide structure of lead screw, and recess and protrusion piece are seted up respectively on molten metal case lateral wall and holder, and when holder and molten metal case contact, recess and protrusion piece are nested each other, form the meshing structure.

Preferably, the transmission structure comprises a driving gear and a transmission gear, the driving gear and the transmission gear are respectively rotatably connected to the movable frame, the driving gear is meshed with the transmission gear, racks are fixedly arranged on two side walls of the sliding groove, and the driving gear and the transmission gear are respectively meshed with the racks on two sides to enable the movable frame to be driven by driving forces on two sides to move.

Preferably, the screw rod is a screw groove screw rod, the inside of the clamping piece is rotatably provided with a ball, and the ball is slidably nested in the screw groove.

Preferably, the bottom of the supporting structure is fixedly provided with a mounting plate, the mounting plate is provided with through holes, and screws penetrate through the through holes to fix the mounting plate on the ground.

The invention has the advantages that:

1) the grabbing structure is installed at the two ends of the bottom of the grabbing frame, the metal liquid box can be grabbed from the two ends of the metal liquid box through the grabbing piece, the grabbing of the metal liquid box is facilitated, the stability of the metal liquid box is improved, and unstable metal liquid of the metal liquid box is prevented from being poured and scattered in the metal liquid transfer process.

2) The metal liquid box is grabbed and held, the metal liquid box is rotated to dump, the metal liquid box is reversely reset and the metal liquid box is released through a telescopic structure, so that the device is simple in structure, the production and manufacturing cost is reduced, and energy is saved.

3) The moving frame is driven by the driving forces on the two sides to complete moving, so that the deviation caused by single-side measurement of the moving frame is avoided, and the sliding stability is good.

4) Automatic control is carried out through the controller and the position sensor, full-automatic control is achieved, manual operation is avoided, and automation is achieved.

Drawings

Fig. 1 is a perspective view of a molten metal transfer apparatus for casting according to an embodiment of the present invention;

FIG. 2 is a front view schematically illustrating a molten metal transferring apparatus for casting according to an embodiment of the present invention;

FIG. 3 is a schematic top view of a molten metal transfer apparatus for casting according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of section A in FIG. 3;

FIG. 5 is a schematic structural diagram of a grabbing structure of a molten metal transferring device for casting according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a transmission structure in a molten metal transfer device for casting according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of the enlarged structure A in FIG. 2;

FIG. 8 is a schematic view of a combination of a steering gear and a driving bar in a molten metal transfer device for casting according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a steering gear in the molten metal transferring apparatus for casting according to an embodiment of the present invention.

In the drawings: the support leg 1, the frame 2, the sliding tray 3, the carriage 4, the motor 5, snatch structure 6, the mounting panel 7, rack 8, the transmission strip 9, the rotation post 10, steering gear 11, mounting bracket 12, extending structure 13, push rod 14, snatch frame 15, holder 16, transmission rack 17, rotating gear 18, the metal liquid case 19, spout 20, the guide bar 21, transmission structure 22, driving gear 23, transmission gear 24, lead screw 25, ball 26, embedded groove 27, recess 28, protrusion piece 29, gag lever post 30, spacing groove 31, spacing portion 32, rack portion 33, gear portion 34, plane portion 35.

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.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

Fig. 1 is a schematic diagram of a molten metal transfer apparatus for casting according to an embodiment of the present invention. The molten metal transfer device for casting includes: a support structure, a moving frame 4, a motor 5, and a gripping structure 6.

And the supporting structure forms a supporting main body, is provided with a sliding groove 3 consistent with the metal liquid transfer direction and is connected with the liquid charging position and the liquid pouring position of the metal liquid barrel 19. The support structure may be a steel framework structure, which may be welded, bolted, etc. The supporting structure can include supporting leg 1 and frame 2, and sliding tray 3 sets up on frame 2, and the fixed mounting panel 7 that is provided with in supporting structure's bottom sets up the thru hole on the mounting panel 7, can use the screw to pass the thru hole and fix subaerial. Of course, the support structure can also be fixed to the upright post by screws, which will not be described herein.

And a moving frame 4 slidably fitted in the slide groove 3 and forming an installation body by slidably supporting the slide groove 3. The sliding groove 3 can run through the frame 2, and the removal frame 4 passes the sliding groove 3 and sets up on the sliding groove 3, can be provided with sliding structure between removal frame 4 and the sliding groove 3, and sliding structure can be the combination of gyro wheel and guide rail structure, and the gyro wheel rotates to be connected in the bottom that removes frame 4, and track fixed connection is on sliding groove 3, and the gyro wheel rolls and places on the guide rail to slide, reduced the slip frictional force that removes frame 4. Certainly, the sliding structure can also include a sliding groove 20 and a protrusion, the guide rod 21 is fixed on the sliding groove 3, the moving frame 4 is connected with the protrusion, the protrusion is slidably embedded in the sliding groove 20, the guide rod 21 which is consistent with the sliding direction of the moving frame 4 is fixedly arranged in the sliding groove 20, the guide rod 21 slidably penetrates through the protrusion, a linear bearing is arranged in the protrusion, and the linear bearing is slidably embedded in the guide rod 21, so that sliding guiding is performed, and friction force is reduced.

And the transmission structure 22 is rotatably arranged inside the movable frame 4 and is meshed with the rack 8. The transmission structure 22 may include a driving gear 23 and a transmission gear 24. The driving gear 23 and the transmission gear 24 are respectively connected to the moving frame 4 in a rotating mode, the driving gear 23 is meshed with the transmission gear 24, racks 8 are fixedly arranged on two side walls of the sliding groove 3, the driving gear 23 and the transmission gear 24 are respectively meshed with the racks 8 on two sides, the driving gear 23 rotates, and the driving gear 23 drives the transmission gear 24 to rotate, so that the moving frame 4 is driven by driving forces on two sides to complete moving, deviation caused by single-side driving of the moving frame 4 is avoided, and sliding stability is good. Of course, the transmission structure may also be a single gear structure, which is not described herein.

And the motor 5 is installed on the moving frame 4, is connected with the transmission structure 22, and is used for driving the transmission structure 22 to rotate, and enables the moving frame 4 to be transferred along the direction of the sliding groove 3 through the rotation of the transmission structure 22. The grabbing structure 6 is connected to the bottom of the movable frame 4 and used for clamping and rotating the molten metal tank 19. The grabbing structure 6 comprises a rotating column 10, a mounting frame 12, a telescopic structure 13 and a grabbing frame 15. The rotary post 10 is attached to the bottom of the moving frame 4, and the mounting frame 12 and the telescopic structure 13 are mounted on the rotary post 10. The mounting frame 12 may be an inverted U-shaped structure, the telescopic structure 13 is installed inside the mounting frame 12, and the mounting frame 12 may also be other structures, such as a square, a semi-arc structure, and the like. The grabbing frame 15 is fixedly connected to the mounting frame 12 to form a mounting main body, and the grabbing frame 15 may also be an inverted U-shaped structure, or may be another structure, which is not described herein. Grabbing members are installed at two ends of the bottom of the grabbing frame 15, the metal liquid box 19 can be grabbed from two ends of the metal liquid box 19 through the grabbing members, the grabbing of the metal liquid box 19 is facilitated, the stability of the metal liquid box is improved, and the phenomenon that the metal liquid box 19 is unstable and the metal liquid is poured and scattered in the metal liquid transfer process is avoided. The telescopic structure 13 may be a pneumatic telescopic rod, a hydraulic rod or an electric telescopic rod. And transmits signals to perform operations through the controller, which is not described in detail.

The grabbing piece comprises a rotating gear 18, a screw rod 25 and a clamping piece 16, the screw rod 25 is rotatably nested at the bottom of the grabbing frame 15, the rotating gear 18 is coaxially and fixedly connected with the screw rod 25 and is positioned at the clamping outer end of the screw rod 25, and the clamping piece 16 is nested at the clamping inner end of the screw rod 25 in a matching mode. Be provided with 19 complex meshing structures of metal liquid case on the clamping face of holder 16, spacing groove 31 has been seted up to holder 16's periphery, snatchs the fixed gag lever post 30 that is provided with in frame 15 bottom inboard, and spacing groove 31 slides and nests on gag lever post 30, and holder 16 slides and leads through gag lever post 30, has avoided holder 16 circumferential direction. The telescopic end of the telescopic structure 13 is fixedly connected with a push rod 14, the two ends of the push rod 14 are fixedly connected with a transmission rack 17, and the transmission rack 17 is meshed with a rotating gear 18. When the telescopic structure 13 extends, the transmission rack 17 is pushed to slide, the transmission rack 17 slides to drive the rotation gear 18 to rotate, the rotation gear 18 rotates to drive the screw rod 25 to rotate, the screw rod 25 rotates, and the clamping piece 16 is limited by the limiting rod 30 in a rotating mode, so that the clamping piece 16 is driven to move towards the molten metal tank 19. The holding surfaces of the holding members 16 are in contact with the molten metal tank 19 and are engaged with each other by the engaging structure, and when the holding members 16 are in contact with the molten metal tank 19, the stopper rod 30 is disengaged from the stopper groove 31, and due to the engagement of the engaging structure, the holding members 16 at both ends hold the molten metal tank 19 from both ends of the molten metal tank 19, and are moved on the support structure by the moving frame 4 to be transferred. When the liquid is transferred to the liquid pouring position, the telescopic structure 13 pushes the transmission rack 17 to move continuously, and the transmission rack 17 pushes the rotating gear 18 to rotate continuously. At this time, the clamping piece 16 is meshed with the molten metal tank 19 through the meshing structure, the clamping piece 16 cannot move relatively, and therefore the screw rod 25 rotates to drive the molten metal tank 19 to rotate, and molten metal in the molten metal tank 19 can be poured out. After that, the telescopic structure 13 drives the transmission rack 17 to contract, the transmission rack 17 slides reversely to drive the rotating gear 18 to rotate reversely, the clamping piece 16 at the moment is meshed with the molten metal box 19 through the meshing structure and drives the molten metal box 19 to return to the original position, the molten metal box 19 returns to the original position, the clamping piece 16 can be stopped for limiting and can not rotate through the grabbing frame 15, the clamping piece 16 can not rotate along with the screw rod 25, the screw rod 25 rotates to drive the clamping piece 16 to rotate relative to the screw rod 25, so that the clamping piece 16 is far away from the molten metal box 19 and moves axially on the screw rod 25 to be separated from the molten metal box 19, the limiting rod 30 enters the inside of the limiting groove 31, and the clamping piece 16 is rotated for limiting.

Position sensor, install on bearing structure, including first position sensor and second position sensor, be used for the response to remove the positional information of frame 4, and output removes the position signal of frame 4, the liquid loading position of liquid metal case 19 is installed to first position sensor, and second position sensor installs the position of falling the liquid at liquid metal case 19, that is to say the position of grabbing position and mould of liquid metal case 19, when grabbing structure 6 and moving to the liquid loading position, position sensor senses and removes frame 4 position. When the gripping structure 6 is moved to the pouring position, the position sensor also senses the position of the moving frame 4.

And the controller is electrically connected with the position sensor, the motor 5 and the telescopic structure 13 and is used for receiving a position signal output by the position sensor and transmitted to the movable frame 4. When the movable frame 4 and the grasping mechanism 6 are reset, the movable frame 4 is returned to the liquid charging position. The first position sensor senses the position of the movable frame 4, the motor 5 stops running, the movable frame 4 stops sliding and stops at a liquid containing position, then the telescopic structure 13 is started and drives the transmission rack 17 to slide and pull the rotating gear 18 to rotate, the rotating gear 18 drives the clamping piece 16 to rotate, and drives the molten metal box 19 to return to the original position, the position can be limited and can not be rotated by blocking the grabbing frame 15, the clamping piece 16 can not rotate along with the screw rod 25, the screw rod 25 rotates to drive the clamping piece 16 to rotate relative to the screw rod 25, so that the clamping piece 16 is far away from the molten metal box 19 and moves axially on the screw rod 25 to be separated from the molten metal box 19, the limiting rod 30 enters the limiting groove 31, and the clamping piece 16 is limited in rotation. The molten metal tank 19 is disengaged from the holder 16. By the controller controlling the telescopic structure 13 to delay the contraction signal, the empty molten metal tank 19 is transferred away, and the molten metal tank 19 filled with molten metal is moved between the clamps 16. And controlling the telescopic structure 13 to extend, pushing the transmission rack 17 to slide, driving the transmission rack 17 to slide to drive the rotation gear 18 to rotate, driving the rotation gear 18 to rotate to drive the screw rod 25 to rotate, driving the clamping piece 16 to move towards the molten metal tank 19 due to the fact that the clamping piece 16 is limited in circumferential rotation through the limiting rod 30, a clamping surface on the clamping piece 16 is in contact with the molten metal tank 19 and is meshed through a meshing structure, when the clamping piece 16 is in contact with the molten metal tank 19, the limiting rod 30 is separated from the limiting groove 31 at the moment, due to meshing of the meshing structure, the clamping pieces 16 at two ends clamp the molten metal tank 19 from two ends of the molten metal tank 19, and move on the supporting structure through the moving frame 4, so that transferring is carried out. When the liquid is transferred to the liquid pouring position, the telescopic structure 13 pushes the transmission rack 17 to move continuously, and the transmission rack 17 pushes the rotating gear 18 to rotate continuously. At this time, the clamping piece 16 is meshed with the molten metal tank 19 through the meshing structure, the clamping piece 16 cannot move relatively, and therefore the screw rod 25 rotates to drive the molten metal tank 19 to rotate, and molten metal in the molten metal tank 19 can be poured out. After that, the telescopic structure 13 drives the transmission rack 17 to contract, the transmission rack 17 slides reversely to drive the rotating gear 18 to rotate reversely, the clamping piece 16 at the moment is meshed with the metal liquid box 19 through the meshing structure, the metal liquid box 19 is driven to return to the original position, the metal liquid box 19 returns to the original position, the clamping piece 16 can not rotate along with the screw rod 25 and can be stopped to be limited by the grabbing frame 15. The movable frame 4 is driven by the motor 5 to move back to the liquid-charging position. The telescopic structure 13 pushes the transmission rack 17 to move continuously, the transmission rack 17 pushes the rotating gear 18 to rotate continuously, the screw rod 25 rotates to drive the clamping piece 16 to rotate relative to the screw rod 25, so that the clamping piece 16 is far away from the molten metal box 19 and moves axially on the screw rod 25 to be separated from the molten metal box 19, the limiting rod 30 enters the limiting groove 31, the clamping piece 16 rotates for limiting, and the molten metal box 19 is released to finish a period of work.

As a preferred embodiment of the present invention, the screw 25 is rotatably connected to the grabbing frame 15, the screw 25 can be a threaded screw or a grooved screw, the clamping member 16 is fittingly nested on the screw 25, when the screw 25 is a grooved screw, the inner part of the clamping member 16 is rotatably provided with the balls 26, and the balls 26 are slidably nested in the grooves. Thereby reducing the friction of the clamping member 16 against the screw 25 and allowing the clamping member 16 to slide smoothly.

As a preferred embodiment of the present invention, the engagement structure may include a groove 28, an insertion groove 27 and a projection 29, and the insertion groove 27 is opened on the top outer side wall of the molten metal tank 19 and forms a guide structure of the lead screw 25 to facilitate the lead screw 25 to enter the engagement position. The groove 28 and the protruding block 29 are respectively formed on the outer side wall of the molten metal tank 19 and the holding member 16, and when the holding member 16 is in contact with the molten metal tank 19, the groove 28 and the protruding block 29 are nested with each other to form a meshing structure. The grooves 28 and the bumps 29 may be arranged in a star-ray pattern so as to form a nested fit with each other.

As a preferred embodiment of the invention, the grabbing structure 6 is rotatably connected to the moving frame 4, the grabbing structure 6 is coaxially and fixedly connected with a steering gear 11, the supporting structure is fixedly connected with a transmission bar 9, when the moving frame 4 slides on the sliding groove 3 to move, the steering gear 11 is engaged with the transmission bar 9 in the moving process, the transmission bar 9 drives the steering gear 11 to rotate, so that the grabbing structure 6 rotates, and the rotating angle of the steering gear 11 is consistent with the rotating direction of the grabbing structure 6 to topple. Thereby can adjust the rotation direction who snatchs structure 6, avoid artifical the rotation. Snatch 6 direction adjustment of structure through snatching 6 removal in-processes of structure through the displacement linkage, avoided installation drive structure, make device simple structure, practiced thrift manufacturing cost, and the energy saving. Wherein, the steering gear 11 can include a gear portion 34 and a plane portion 35, the driving rack 9 includes a limiting portion 32 and a rack portion 33, and the limiting portion 32 is fixedly disposed at two ends of the rack portion 33. The distance between the contact surface of the stopper portion 32 and the axis of the steering gear 11 is the same as the axial distance of the flat surface portion 35. The distance between the contact surface of the rack portion 33 and the axial center of the steering gear 11 is the same as the radial distance of the gear portion 34. Wherein, the circumferential length of the gear portion 34 is consistent with the length of the rack portion 33, and the angle of the gear portion 34 is consistent with the angle of the grabbing structure 6, when the limiting portion 32 contacts with the plane portion 35, and forms a blocking structure to prevent the grabbing structure 6 from rotating. When the steering gear 11 moves to the rack portion 33, the gear portion 34 is meshed with the rack portion 33, the rack portion 33 drives the steering gear 11 to rotate, the grabbing structure 6 rotates to the dumping direction, at the moment, the direction of the plane portion 35 is in contact with the limiting portion 32, the grabbing structure 6 is limited in rotation, and fluctuation of the molten metal tank 19 caused by rotation of the grabbing structure 6 is avoided.

The embodiment of the invention provides a molten metal transfer device for casting, wherein a controller is used for controlling the operation of a motor 5, the motor 5 drives a driving gear 23 to rotate, and the driving gear 23 drives a transmission gear 24 to rotate, so that the motor 5 stops operating after a movable frame 4 is driven by two sides to move to a liquid loading position. The movable frame 4 stops sliding and stops at the liquid containing position, then the telescopic structure 13 is started and drives the transmission rack 17 to slide and pull the rotating gear 18 to rotate, the rotating gear 18 drives the clamping piece 16 to rotate, the clamping piece 16 cannot rotate along with the screw rod 25 because the grabbing frame 15 stops limiting, the clamping piece 16 cannot rotate along with the screw rod 25, the screw rod 25 rotates to drive the clamping piece 16 to rotate relative to the screw rod 25, and therefore the clamping piece 16 is far away from the metal liquid box 19 and moves axially on the screw rod 25 to be separated from the metal liquid box 19, the limiting rod 30 enters the limiting groove 31, and the clamping piece 16 is limited in rotation. The molten metal tank 19 is disengaged from the holder 16. By the controller controlling the telescopic structure 13 to delay the contraction signal, the empty molten metal tank 19 is transferred away, and the molten metal tank 19 filled with molten metal is moved between the clamps 16. Controller control extending structure 13 extends, it slides to promote driving rack 17, driving rack 17 slides and drives rotating gear 18 and rotate, rotating gear 18 rotates and drives lead screw 25 and rotate, lead screw 25 rotates, because holder 16 rotates the restriction through gag lever post 30, thereby drive holder 16 and move to molten metal case 19, the clamping face on holder 16 contacts with molten metal case 19 and meshes through the engagement structure, when holder 16 contacts with molten metal case 19, gag lever post 30 breaks away from with spacing groove 31 this moment, because the engagement of engagement structure, holder 16 at both ends grasps molten metal case 19 from molten metal case 19's both ends, move on bearing structure through removal frame 4, thereby shift. When the vehicle is transferred to a designated place, the telescopic structure 13 pushes the transmission rack 17 to move continuously, and the transmission rack 17 pushes the rotating gear 18 to rotate continuously. At this time, the clamping piece 16 is meshed with the molten metal tank 19 through the meshing structure, the clamping piece 16 cannot move relatively, and therefore the screw rod 25 rotates to drive the molten metal tank 19 to rotate, and molten metal in the molten metal tank 19 can be poured out. Then the telescopic structure 13 drives the transmission rack 17 to contract, the transmission rack 17 slides reversely to drive the rotating gear 18 to rotate reversely, and the clamping piece 16 is meshed with the molten metal tank 19 through the meshing structure at the moment and drives the molten metal tank 19 to return to the original position. The metal liquid case 19 reverts original position, can block spacingly and unable the rotation through snatching frame 15, holder 16 also can't rotate along with the lead screw 25, the lead screw 25 rotates and drives the relative lead screw 25 of holder 16 and rotate, thereby make holder 16 keep away from and axial displacement separates with metal liquid case 19 on the lead screw 25 relative metal liquid case 19, and make gag lever post 30 enter into the inside of spacing groove 31, it is spacing to rotate holder 16, thereby release metal liquid case 19 and accomplish a cycle work. Install through the bottom both ends that snatch frame 15 and snatch structure 6, can snatch metal liquid box 19 from metal liquid box 19's both ends through snatching the piece, be convenient for snatch of metal liquid box 19, increased its stability, avoided metal liquid transfer in-process metal liquid box 19 unstability metal liquid to spill. The sequential linkage of grabbing, rotating, dumping, reverse resetting and releasing from the molten metal tank 19 is completed through the telescopic structure 13, so that the device is simple in structure, the production and manufacturing cost is reduced, and energy is saved. Snatch through the meshing structure, avoided liquid metal box 19 to remove the in-process and rocked, increased the stability of removal, avoided the liquid metal to spill, increase the security of operation. The movement is completed by the driving force on the two sides of the moving frame 4, so that the deviation caused by the single-side driving of the moving frame 4 is avoided, and the sliding stability is good.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.