CN113618051B - Double-station turnover casting machine - Google Patents

Abstract

The application discloses a double-station turnover casting machine which comprises a rack, a driving mechanism, a pair of rotating wheels and a pair of fixing mechanisms; the driving mechanism comprises a rotating shaft arranged at the upper end of the rack and a driving device arranged at the lower end of the rack, and the driving device is suitable for driving the rotating shaft to rotate; the rotating wheels are respectively and rotatably arranged at the two ends of the rotating shaft through the connecting components; the two fixing mechanisms are respectively and correspondingly fixedly connected with the rotating wheel and are used for fixing the casting mould; when fixed establishment fixes the casting mould, fixed establishment can also drive coupling assembling and be connected runner and pivot to drive the fixed casting mould of fixed establishment through the pivot alone and overturn the shaping. The beneficial effect of this application: when one fixing mechanism pours the casting mold, the casting mold fixed on the other fixing mechanism is in a turnover forming state, so that the pouring and forming processes of the casting mold on double stations are alternately realized, and the production efficiency of the casting mold is improved.

Description

Double-station turnover casting machine

Technical Field

The application relates to the technical field of casting, in particular to a double-station turnover casting machine.

Background

The casting is a method of pouring liquid metal into a cavity of a casting mold matched with the shape of a part, and obtaining the part or a blank after the liquid metal is cooled and solidified, and is widely applied to the metal manufacturing industry.

The existing casting industry has poor working environment and extremely high labor intensity. In order to ensure the production quality of castings and reduce the rework rate, various methods for improving the casting production quality are adopted in the existing casting industry, for example, a turnover casting machine, also called a tilting gravity casting machine, is adopted, the internal quality of the castings can be effectively improved through the turnover casting of a mold, and the method is particularly suitable for the gravity casting of complex castings such as an air inlet manifold and the like.

However, the existing roll-over casting machine is single-station, and when the existing roll-over casting machine is used for production, the casting and molding of one part are required to be completed, so that the production efficiency is low. There is a need for a roll-over caster that can improve production efficiency.

Disclosure of Invention

The application aims to provide a double-station turnover casting machine, which improves the casting efficiency of parts through a double-station structure.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a double-station turnover casting machine comprises a frame, a driving mechanism, a pair of rotating wheels and a pair of fixing mechanisms; the driving mechanism comprises a driving device and a rotating shaft, the rotating shaft is rotatably arranged at the upper end of the rack, the driving device is arranged at the lower part of the rack, and the driving device is suitable for driving the rotating shaft to rotate; the rotating wheels are respectively rotatably arranged at two ends of the rotating shaft through connecting components, the rotating wheels are connected with the rack through limiting mechanisms, and the limiting mechanisms are suitable for limiting the rotating wheels; the two fixing mechanisms are respectively and correspondingly fixedly connected with the rotating wheel, and the fixing mechanisms are suitable for fixing the casting mold; fixing mechanism still be suitable for with stop gear and coupling assembling cooperatees, so that when fixing mechanism fixes the casting mould, stop gear removes right the rotation of runner is spacing, simultaneously coupling assembling will the runner with the pivot is connected, thereby can pass through the pivot drives alone the casting mould that fixing mechanism is fixed is turned over the shaping. It can be understood that during the installation and subsequent fixing and pouring of the casting mold by one of the fixing mechanisms, the casting mold fixed on the other fixing mechanism is in the overturning forming process, so that the pouring and forming processes of the casting mold on the double stations are alternately realized.

Preferably, the fixing mechanism comprises a fixing plate, a pressing plate and a telescopic device, the fixing plate is fixed in the middle of the outer side of the rotating wheel, a fixing cavity for placing a casting mold is formed in the fixing plate, the pressing plate is located in the fixing cavity, the telescopic device is fixedly installed at the upper end of the fixing plate, and the output end of the telescopic device is fixedly connected with the pressing plate; the pressure plate is suitable for fixing the casting mold through movement along the fixing cavity under the driving of the telescopic device.

Preferably, the fixing mechanism further comprises a pair of baffles, the rotating wheel is fixed with rotating rods on two sides of the fixing plate, the baffles are located on two sides of the fixing plate and are rotatably connected with the rotating rods, an extension plate is arranged on one side, far away from the rotating wheel, of the baffles, a second hinge seat is arranged on the baffles, first hinge seats are arranged on two sides of the pressing plate, the first hinge seats are hinged with the second hinge seats through hinge plates, so that the baffles can be driven to rotate towards the fixing cavity through downward movement of the pressing plate, and then the casting mold in the fixing cavity is limited in multiple directions through the baffles and the extension plate, so that the stability of the casting mold during overturning is improved.

Preferably, the middle part of fixed plate is followed the moving direction of clamp plate is provided with the spout, the middle part of runner along radially be provided with the logical groove that the spout aligns, the clamp plate is close to one side of fixed plate is fixed with the second roof, the second roof is located in the spout, be fixed with first roof on the coupling assembling, first roof is suitable for to pass logical groove with the second roof cooperates, so that the second roof is along the clamp plate is followed when the spout slides, can drive coupling assembling follows the pivot carries out axial displacement, and then realizes the runner with the connection of pivot.

Preferably, the connecting assembly comprises a connecting sleeve and a clamping assembly, the outer side wall of the connecting sleeve is in splined connection with a connecting hole arranged in the middle of the rotating wheel, the inner side wall of the connecting sleeve is rotatably connected with the end part of the rotating shaft, and the clamping assembly is installed on the connecting sleeve; the rotating shaft is rotatably connected with the rack through the middle part, two sides of the middle part of the rotating shaft are respectively sleeved with a return spring, two ends of the return spring respectively abut against the connecting sleeve and the rack, the connecting sleeve is suitable for axial movement under the driving of the fixing mechanism, so that the connecting sleeve is clamped with the rotating shaft through the clamping component, and then the connecting sleeve can drive the rotating wheel to synchronously rotate along with the rotating shaft, and therefore the casting mold fixed on the fixing mechanism is turned and molded; when fixing mechanism removes the fixed time to casting mould, the connection cover resets under reset spring's the elasticity, in order to remove the joint subassembly with the block of pivot, thereby make the runner does not follow the pivot rotates to the dismantlement and the installation pouring once more of casting mould are conveniently carried out.

Preferably, an installation groove is formed in the inner wall of the connection sleeve along the circumferential direction, the clamping assembly is installed in the installation groove and comprises a clamping block and an ejection spring, two ends of the ejection spring are respectively connected with the clamping block and the bottom of the installation groove, and symmetrical clamping grooves are formed in the side walls of two sides of the middle of the rotating shaft; the mounting groove is suitable for corresponding to the clamping groove through axial movement of the connecting sleeve, so that the clamping block is ejected out to the clamping groove under the elastic force of the ejection spring to be clamped, and when the rotating shaft rotates, the connecting sleeve is driven to rotate through the clamping block, and synchronous rotation of the rotating wheel is achieved.

Preferably, the limiting mechanism comprises an axial limiting structure and a rotation limiting structure, and the axial limiting structure is suitable for limiting the axial movement of the rotating wheel along the rotating shaft so that the rotating wheel can keep stable rotation without axial movement; the rotation limiting structure is suitable for limiting the rotation of the rotating wheel so as to facilitate the installation and pouring of the casting mold, and the rotation limiting structure is suitable for relieving the rotation limiting of the rotating wheel under the driving of the fixing mechanism so as to realize the turnover molding of the casting mold.

Preferably, the axial limiting structure comprises a positioning rod and a positioning groove, the positioning groove is formed in the end face, close to the rack, of the rotating wheel, the positioning rod is fixed to the lower portion of the rack, and the positioning rod is suitable for being matched with the positioning groove to limit axial movement of the rotating wheel.

Preferably, the rotation limiting structure comprises a limiting assembly and a limiting groove, the limiting groove is radially arranged inside the rotating wheel, the limiting groove and the through groove are 180 degrees, one end of the limiting groove is communicated with the side wall of the rotating wheel, the other end of the limiting groove is communicated with the end face, close to the fixing mechanism, of the rotating wheel, the limiting assembly is installed on a transverse plate fixed on the lower portion of the rack, the limiting assembly is located right below the rotating wheel, the limiting assembly comprises a limiting rod and a limiting spring, the limiting rod is connected with the transverse plate in a sliding mode, a limiting block is fixed on the top of the limiting rod, the limiting spring is sleeved on the limiting rod, and two ends of the limiting spring are respectively abutted against the limiting block and the transverse plate; when the fixing mechanism does not fix the casting mold, the limiting block is suitable for being matched with the limiting groove under the driving of the elastic force of the limiting spring, so that the rotation of the rotating wheel is limited, and the installation and pouring of the casting mold are facilitated; one side of the pressing plate, which is close to the rotating wheel, is fixedly provided with a connecting plate, the connecting plate is suitable for penetrating through the sliding groove and sliding along the limiting groove, when the fixing mechanism finishes the fixation of the casting mold, the connecting plate pushes out the limiting block from the limiting groove through the downward movement along the limiting groove so as to relieve the rotation limiting structure from limiting the rotation of the rotating wheel, and therefore the rotating wheel is turned and molded along with the rotation of the rotating shaft.

Preferably, a belt wheel is installed at the output end of the driving device, and a belt wheel is also installed in the middle of the rotating shaft, so that the driving device is connected with the rotating shaft through a belt, and the driving device drives the rotating shaft to rotate.

Compared with the prior art, the beneficial effect of this application lies in:

(1) when the casting mold on one fixing mechanism is poured, the casting mold on the other fixing mechanism is fixedly rotated along with the rotating wheel so as to be in a turnover forming state, and therefore the pouring and forming processes of the casting mold on the double stations can be alternately realized. Compared with the traditional single-station casting machine, in the casting molding process of twice workpieces, the double-station casting machine can save at least one casting time or molding time, so that the production efficiency of the casting mold can be effectively improved.

(2) Through coupling assembling and fixed establishment's cooperation, can be connected the runner mutually independent on the duplex position with the pivot to drive the casting mould of fixed on the fixed establishment and carry out the shaping of overturning, can realize the shaping of overturning of casting mould on the duplex position promptly through single power source, can effectual reduction equipment cost.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic diagram of the exploded view of the present invention.

FIG. 3 is a schematic view of the structure of the runner of the present invention.

Fig. 4 is a schematic view of the internal structure of the connecting assembly of the present invention.

FIG. 5 is a schematic view of the structure of the hinge of the present invention.

Fig. 6 is a schematic exploded view of the fixing mechanism of the present invention.

FIG. 7 is a schematic structural view of a press plate according to the present invention.

Fig. 8 is a schematic structural view of a baffle plate in the present invention.

Fig. 9 is a schematic view of one of the fixing mechanisms of the present invention in a state of fixing the mold.

Fig. 10 is a cross-sectional view of fig. 9 of the present invention.

Fig. 11 is an enlarged view of the portion a of fig. 10 according to the present invention.

Fig. 12 is an enlarged view of the portion B of fig. 10 according to the present invention.

Fig. 13 is an enlarged view of the invention at the location of part C in fig. 12.

Fig. 14 is an enlarged view of fig. 10 taken at a point D.

Fig. 15 is an enlarged view of fig. 10 taken at a portion E thereof.

FIG. 16 is a schematic view of the fixing mechanism driving the mold to turn over for casting according to the present invention.

In the figure: the device comprises a frame 1, a bottom plate 11, a supporting plate 12, a transverse plate 121, a positioning rod 122, a driving mechanism 2, a driving device 21, a rotating shaft 22, a clamping groove 220, a belt wheel 230, a belt 240, a rotating wheel 3, a connecting hole 300, a spline groove 310, a through groove 320, a positioning groove 330, a limiting groove 340, a rotating rod 350, a connecting assembly 4, a connecting sleeve 41, a spline 400, a mounting groove 410, a first top plate 411, a clamping assembly 42, a clamping block 421, an ejection spring 422, a fixing mechanism 5, a fixing plate 51, a fixing cavity 510, a mounting plate 513, a placing table 512, a sliding groove, a telescopic device 52, a pressing plate 53, a groove 530, a second top plate 531, a connecting plate 532, a first hinge seat 534, a baffle plate 54, a rotating hole 540, an extending plate 541, a second hinge seat 542, a hinge plate 55, a return spring 6, a limiting assembly 7, a limiting rod 71, a limiting spring 72 and a limiting block 711.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

One of the preferred embodiments of the present application is shown in fig. 1 to 16, which is a double-station reverse casting machine comprising a frame 1, a driving mechanism 2, a pair of rotating wheels 3 and a pair of fixing mechanisms 5. The driving mechanism 2 comprises a driving device 21 and a rotating shaft 22, the rotating shaft 22 is rotatably mounted at the upper end of the rack 1, the driving device 21 is fixedly mounted at the lower part of the rack 1, and the driving device 21 is used for driving the rotating shaft 22 to rotate. Two runners 3 are respectively rotatably installed at two ends of the rotating shaft 22 through the connecting components 4 to form a double-station structure, and meanwhile, the runners 3 are connected with the rack 1 through the limiting mechanism, so that the runners 3 are limited through the limiting mechanism. The two fixing mechanisms 5 are respectively and correspondingly fixedly connected with the end surface of one rotating wheel 3, and the fixing mechanisms 5 are used for fixing the casting mold; fixing mechanism 5 can also cooperate with stop gear and coupling assembling 4 simultaneously to when fixing mechanism 5 fixes the casting mould, fixing mechanism can drive stop gear and relieve the rotation spacing to runner 3, can also drive coupling assembling 4 simultaneously and be connected runner 3 and pivot 22, thereby can drive the casting mould that fixing mechanism 5 was fixed alone through the rotation of pivot 22 and overturn the casting. It can be understood that, in the process of pouring the casting mold by one of the fixing mechanisms 5, the casting mold on the other fixing mechanism 5 is fixed and in the state of being turned over, so that in the process of casting the batch of workpieces, the casting machine of the embodiment can alternately realize the pouring and forming processes of the casting mold on the double stations, thereby reducing the working hours of producing the batch of workpieces and improving the casting production efficiency of the workpieces.

In this embodiment, as shown in fig. 1 and 2, the frame 1 includes a bottom plate 11 and a pair of supporting plates 12, the two supporting plates 12 are fixed in the middle of the upper end of the bottom plate 11, and a mounting gap exists between the two supporting plates 12; the pivot 22 rotates and installs in the upper end of backup pad 12 to the middle part of pivot 22 is located the installation clearance, and drive arrangement 21 fixed mounting is in the lower part of backup pad 12, and drive arrangement 21's output extends in the installation clearance, so that drive arrangement 21's output is connected through drive assembly with the middle part of pivot 22, thereby can drive pivot 22 through drive arrangement 21 and rotate, and then can drive subsequent runner 3 and carry out synchronous rotation.

In this embodiment, as shown in fig. 2, the transmission assembly includes a pulley 230 and a belt 240, the pulley 230 is installed at the output end of the driving device 21 and at the middle of the rotating shaft 22, and the two pulleys 230 are connected by the belt 240, so that the rotating shaft 22 can be driven to rotate by the rotation of the driving device 21 through the belt 240. The transmission component is not limited to belt transmission, but can also adopt chain wheel transmission or other structures with similar functions.

In this embodiment, the driving device 21 may be a servo motor or a stepping motor.

In this embodiment, the fixing mechanism 5 performs casting of the casting mold in a horizontal position, and after the casting is completed, the fixing mechanism 5 drives the fixed casting mold to perform turnover molding, and a turnover angle can be adjusted according to actual needs, for example, as shown in fig. 16, the turnover angle is 90 °.

In one embodiment of the present application, as shown in fig. 6, 9, 10 and 16, the fixing mechanism 5 includes a fixing plate 51, a pressing plate 53 and a telescopic device 52. Wherein the fixed plate 51 is fixedly arranged at the middle part of the outer end face of the runner 3 through bolts, the upper end of the fixed plate 51 is vertically fixed with a mounting plate 511, the lower end of the fixed plate 51 is vertically fixed with a placing table 512, and a fixed cavity 510 for placing a casting mold is formed between the mounting plate 511 and the placing table 512. The pressure plate 53 is located in the fixed cavity 510, the telescopic device 52 is fixedly mounted on the upper end surface of the mounting plate 511, and the output end of the telescopic device 52 extends to the fixed cavity 510 to be fixedly connected with the pressure plate 53, so that the pressure plate 53 is driven by the telescopic device 52 to fix the casting mold by moving along the fixed cavity 510.

In this embodiment, the telescoping device 52 may be a hydraulic cylinder or other device with similar functionality.

In this embodiment, as shown in fig. 3, 6 to 10 and 16, the rotating wheel 3 has rotating rods 350 fixed on both sides of the fixed plate 51, and the fixing mechanism 5 further includes a pair of blocking plates 54, the two blocking plates 54 are respectively located on both sides of the fixed plate 51 and are rotatably connected with the rotating rods 350 through rotating holes 540 formed at the end portions. The baffle plate 54 is provided with a second hinge seat 542, the two sides of the pressure plate 53 are provided with first hinge seats 534, and the first hinge seats 534 and the second hinge seats 542 are hinged through hinge plates 55, so that the baffle plate 54 can be driven to rotate around the rotating rod 350 through the hinge plates 55 by the up-and-down movement of the pressure plate 53 along the fixed cavity 510. When the pressing plate 53 moves downwards along the fixed cavity 510, the baffle plates 54 at two sides can be driven to rotate around the rotating rod 55 towards the direction of the fixed cavity 510 through the hinged plate 55, and when the pressing plate 53 is in extrusion press fit with a casting mold, the baffle plates 54 are just in a state vertical to the pressing plate 53, and meanwhile, one side of the baffle plates 54 far away from the rotating wheel 3 is provided with an extension plate 541, so that the casting mold in the fixed cavity 510 can be limited in multiple directions through the baffle plates 54 and the extension plate 541, and the stability of the casting mold during overturning molding is improved. After the casting mold is formed, the fixing mechanism 5 is rotated to a horizontal position, then the pressing plate 53 is driven to move upwards, and in the process that the pressing plate 53 moves upwards, the baffle plates 54 on two sides are driven by the hinged plate 55 to rotate around the rotating rod 350 towards the direction far away from the fixed cavity 510, so that the fixing of the casting mold in the fixed cavity 510 is released, and the casting mold is convenient to disassemble.

It is understood that the horizontal position in the present embodiment refers to a position where the pressing plate 53 is parallel to the bottom plate 11.

In one embodiment of the present application, as shown in fig. 3 to 5 and 11 to 13, the connection assembly 4 includes a connection sleeve 41 and a clamping assembly 42, an outer side wall of the connection sleeve 41 is provided with a spline 400, a middle portion of the rotating wheel 3 is provided with a connection hole 300, an inner wall of the connection hole 300 is provided with a spline groove 310, the connection sleeve 41 is matched with the spline groove 310 of the connection hole 300 through the spline 400, meanwhile, the inner side wall of the connection sleeve 41 is rotatably connected with an end portion of the rotating shaft 22, and the clamping assembly 42 is installed on the connection sleeve 41. The rotating shaft 22 is rotatably connected with the rack 1 through the middle part, the two sides of the middle part of the rotating shaft 22 are respectively sleeved with the return spring 6, and the two ends of the return spring 6 are respectively abutted against the connecting sleeve 41 and the rack 1. In the process that the pressing plate 53 fixes the casting mold in the fixing cavity 510, the pressing plate 53 can also move along the axial direction of the rotating shaft 22 and compress the return spring 6 by matching with the connecting sleeve 41 to drive the connecting sleeve 41, so that the connecting sleeve 41 is clamped with the rotating shaft 22 through the clamping component 42, and then the rotating wheel 3 can be driven by the connecting sleeve 41 to synchronously rotate along with the rotating shaft 22, so that the fixed casting mold on the fixing mechanism 5 is overturned and molded. When the fixing mechanism 5 is in the horizontal position to release the fixing of the casting mold, the connecting sleeve 41 is reset under the elastic force of the return spring 6 to release the clamping of the clamping component 42 and the rotating shaft 22, so that the rotating wheel 3 is separated from the rotating shaft 22, and the casting mold is conveniently detached and poured again.

In this embodiment, as shown in fig. 4, 5, and 11 to 13, the inner wall of the connecting sleeve 41 is provided with a plurality of mounting grooves 410 along the circumferential direction, and the number of the mounting grooves 410 may be set according to actual needs, for example, as shown in fig. 4, the number of the mounting grooves 410 is four, and each mounting groove 410 is provided with the clamping component 42. The clamping assembly 42 specifically includes a latch 421 and an ejecting spring 422, and two ends of the ejecting spring 422 are respectively connected to the latch 421 and the bottom of the mounting groove 410. Meanwhile, two symmetrical groups of clamping grooves 220 are formed in the side walls of the two sides of the middle of the rotating shaft 22, and the number of each group of clamping grooves 220 is equal to that of the mounting grooves 410 on the connecting sleeve 41. While the pressing plate 53 moves along the fixing cavity 510, the pressing plate 53 can drive the connecting sleeve 41 to drive the clamping assembly 42 to move along the axial direction of the rotating shaft 22. When the connecting sleeve 41 moves to the position where the mounting groove 410 corresponds to the clamping groove 220 on the rotating shaft 22, the clamping block 421 is ejected out to the clamping groove 220 under the elastic force of the ejection spring 422 to be clamped, so that when the rotating shaft 22 rotates, the connecting sleeve 41 and the rotating wheel 3 can be driven to synchronously rotate through the clamping of the clamping block 421 and the clamping groove 220, the rotating wheel 3 is overturned and molded by a fixed casting mold, and the return spring 6 is in a compression state at the moment.

It can be understood that, one side that fixture block 421 is close to runner 3 is the inclined plane, and one side that draw-in groove 220 is close to runner 3 also is the inclined plane simultaneously to when clamp plate 53 shifts up along fixed chamber 510, adapter sleeve 41 moves to the direction that is close to runner 3 under reset spring 6's elasticity effect, at the in-process that adapter sleeve 3 removed, fixture block 421 cooperates through the inclined plane of inclined plane with draw-in groove 220, so that fixture block 421 is extruded to mounting groove 410 in, thereby break away from the block with draw-in groove 220.

In this embodiment, as shown in fig. 3, 4, 7, 11 and 12, the middle portion of the fixed plate 51 is provided with a sliding groove 513 along the moving direction of the pressing plate 53, while the middle portion of the runner 3 is provided with a through groove 320 aligned with the sliding groove 513 along the radial direction, a second top plate 531 is fixed to a side of the pressing plate 53 close to the fixed plate 51, the second top plate 531 is located in the sliding groove 513, a lower portion of the second top plate 531 is provided with a groove 530, and an upper side of the groove 530 is provided with a slope. A first top plate 411 is fixed on the connecting sleeve 41, and an inclined surface is arranged on the upper side of the first top plate 411. When the fixing mechanism 5 is in a state of horizontally unfixed casting mold, the pressure plate 53 is at the highest position of the fixing cavity 510, and at this time, the first top plate 411 passes through the through groove 320 and extends into the groove 530 at the lower part of the second top plate 531, so that the groove 530 and the first top plate 411 are in press fit; when the pressing plate 53 moves down along the fixing cavity 510, the second top plate 531 may press the inclined surface of the upper side of the first top plate 411 through the inclined surface of the upper side of the groove 530, so that the first top plate 411 drives the connecting sleeve 41 to move along the rotating shaft 22 in a direction away from the rotating wheel 3 until the first top plate 411 is separated from the matching with the groove 530, and at this time, the clamping component 42 on the connecting sleeve 41 is just clamped with the clamping slot 220 on the rotating shaft 22.

According to one embodiment of the application, the limiting mechanism comprises an axial limiting structure and a rotating limiting structure, and the axial limiting structure is used for limiting the axial movement of the rotating wheel 3 along the rotating shaft 22, so that when the rotating wheel 3 drives the fixing mechanism 5 to perform overturning forming, stable rotation can be kept without axial movement. Rotate limit structure and be used for carrying on spacingly to the rotation of runner 3 to make things convenient for on the runner 3 when fixing mechanism 5 is in the horizontality to carry out the pouring of casting mould, it can also be spacing to the rotation of runner 3 to remove under fixing mechanism 5's drive simultaneously to rotate limit structure, so that can drive the casting mould through runner 3 and carry out the shaping of overturning after the casting mould accomplishes the pouring.

It can be understood that, in the whole process of pouring and turning molding of the casting mold, the runner 3 only needs to rotate without axial movement, so in order to ensure that the runner 3 can stably rotate, the degree of freedom of axial movement of the runner 3 needs to be limited. When casting the mould and pouring, fixing mechanism 5 is in the horizontality, coupling assembling 4 breaks away from the joint with draw-in groove 220 on the pivot 22 this moment, runner 3 is in the rotation free state this moment, but pivot 22 is in the rotation state that lasts intermittent type, through the rotation frictional force between coupling assembling 4 and the pivot 22, the rotation of pivot 22 still can drive runner 3 and carry out the swing of small amplitude, the rotation free state of runner 3 also does not make things convenient for the pouring of casting mould on the fixing mechanism 5 simultaneously, so when the pouring process of casting the mould, need restrict the rotation degree of freedom of runner 3, carry out stable pouring in order to guarantee that the casting mould carries out.

In this embodiment, as shown in fig. 3 and 14, the axial limiting structure includes a positioning rod 122 and a positioning groove 330, the positioning groove 330 is annularly disposed on the end surface of the rotating wheel 3 close to the rack 1, and meanwhile, the positioning rod 122 is fixed on the lower portion of the rack 1, and the positioning rod 122 can be in sliding fit with the positioning groove 330 all the time in the rotating process of the rotating wheel 3, so that the axial movement of the rotating wheel 3 is limited.

In this embodiment, as shown in fig. 3, 7, 14 and 15, the rotation limiting structure includes a limiting assembly 7 and a limiting groove 340, the limiting groove 340 is radially disposed inside the rotating wheel 3, and the limiting groove 340 and the through groove 320 are distributed at 180 degrees, one end of the limiting groove 340 is communicated with the side wall of the rotating wheel 3, and the other end of the limiting groove 340 is communicated with the end surface of the rotating wheel 3 close to the fixing mechanism 5. The limiting component 7 is installed under the rotating wheel 3, and meanwhile, a connecting plate 532 is fixed on one side of the pressing plate 53 close to the rotating wheel 3, and the connecting plate 532 can penetrate through the sliding groove 513 to slide along the limiting groove 340. Thereby when fixed establishment 5 does not carry out the fixed of casting mould, clamp plate 53 is in the highest position of fixed chamber 510 to make the tip of connecting plate 532 be located the inside of spacing groove 340, spacing subassembly 7 of runner 3 below this moment can cooperate with spacing groove 340, in order to realize spacing the rotation of runner 3, thereby make things convenient for the pouring of casting mould. And after the casting mold finishes pouring, when the casting mold is fixed by downward movement of the pressing plate 53, the connecting plate 532 is driven by the pressing plate 53 to move downward along the limiting groove 340 until the limiting component 7 is ejected out of the limiting groove 340 to relieve the rotation limiting of the rotating limiting structure on the rotating wheel 3, at this moment, the pressing plate 53 just extrudes and fixes the casting mold, and then the casting mold is overturned and molded under the drive of the rotating wheel 3.

In this embodiment, as shown in fig. 14 and 15, a horizontal plate 121 is vertically fixed to the lower portion of the frame 1, the horizontal plate 121 extends to a position right below the runner 3, and the limiting assembly 7 is mounted on the horizontal plate 121. The limiting assembly 7 specifically comprises a limiting rod 71 and a limiting spring 72, the limiting rod 71 is in sliding connection with the transverse plate 121, a limiting block 711 is fixed at the top of the limiting rod 71, the limiting spring 72 is sleeved on the limiting rod 71, and two ends of the limiting spring 72 are respectively abutted to the limiting block 711 and the transverse plate 121. When the casting mold is used for casting, the limiting block 711 is jacked up to the inside of the port of the limiting groove 340 under the action of the elastic force of the limiting spring 72 so as to limit the rotation of the rotating wheel 3; when the casting mold is fixed by the pressing plate 53 after casting, the pressing plate 53 drives the connecting plate 532 to move down along the limiting groove 340 until the limiting block 711 is ejected out of the limiting groove 340 through the end of the connecting plate 532, so that the rotation limitation of the rotating wheel 3 is removed.

The specific working process of the embodiment of the application is as follows: initially, the fixing mechanisms 5 on both stations of the double-station casting machine of this embodiment are in a horizontal state, and at this time, the runner 3 is also in a rotation limiting state.

When the batch casting production of the workpiece needs to be carried out, an operator firstly installs a casting mold in the fixed cavity 510 on one of the stations, pouring is carried out after the casting mold is installed, the casting mold is fixed through the fixing mechanism 5 after the pouring is finished, and in the fixing process of the casting mold completed by the fixing mechanism 5, the fixing mechanism 5 further drives the connecting component 4 and the rotating shaft 22 of the station to be clamped respectively, and drives the limiting component 7 to remove the rotation limitation of the rotating wheel 3. Then, an operator installs a casting mold in the fixed cavity 510 on another station and performs pouring, and at the same time, the casting mold on the previous station is turned over and molded under the rotation of the rotating wheel 3 on the previous station along with the rotation of the rotating shaft 22; when the casting mold at the other station finishes pouring and is fixed by the fixing mechanism 5, the casting mold at the previous station finishes forming, the formed casting mold is detached to take a piece and is poured again by an operator, in the process, the casting mold at the other station also finishes the overturning forming process, and then the processes are repeated at the two stations, so that the pouring and forming time periods of a single station can be reasonably utilized, and the production efficiency of the whole casting machine is improved.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (9)

1. A double-station reverse casting machine is characterized by comprising:

a frame;

the driving mechanism comprises a driving device and a rotating shaft, the rotating shaft is rotatably arranged at the upper end of the rack, the driving device is arranged at the lower part of the rack, and the driving device is suitable for driving the rotating shaft to rotate;

the rotating wheels are respectively rotatably arranged at two ends of the rotating shaft through connecting components, the rotating wheels are connected with the rack through a limiting mechanism, and the limiting mechanism is suitable for limiting the rotating wheels; and

the two fixing mechanisms are respectively and correspondingly fixedly connected with the rotating wheel and are suitable for fixing the casting mold; the fixing mechanism is also suitable for being matched with the limiting mechanism and the connecting component, so that when the fixing mechanism fixes the casting mold, the limiting mechanism relieves the rotation limitation on the rotating wheel, and meanwhile, the connecting component connects the rotating wheel with the rotating shaft, so that the casting mold fixed by the fixing mechanism can be driven by the rotating shaft alone to be turned and molded;

the connecting assembly comprises a connecting sleeve and a clamping assembly, the outer side wall of the connecting sleeve is connected with a middle spline of the rotating wheel, the inner side wall of the connecting sleeve is rotatably connected with the rotating shaft, and the clamping assembly is installed on the connecting sleeve; the rotating shaft is rotatably connected with the rack through the middle part, two sides of the middle part of the rotating shaft are sleeved with return springs, and two ends of each return spring are respectively abutted against the connecting sleeve and the rack;

when the fixing mechanism fixes the casting mold in the fixing cavity, the connecting sleeve is suitable for moving axially under the driving of the fixing mechanism, so that the connecting sleeve is clamped with the rotating shaft through the clamping component, and the connecting sleeve can drive the rotating wheel to synchronously rotate along with the rotating shaft; when the fixing mechanism releases the fixing of the casting mold, the connecting sleeve is suitable for being reset under the elastic force of the reset spring so as to release the clamping component from being clamped with the rotating shaft.

2. The double-station reverse casting machine according to claim 1, wherein: the fixing mechanism comprises a fixing plate, a pressing plate and a telescopic device, the fixing plate is fixed in the middle of the outer side of the rotating wheel, a fixing cavity for placing a casting mold is formed in the fixing plate, the pressing plate is located in the fixing cavity, the telescopic device is fixedly installed at the upper end of the fixing plate, and the output end of the telescopic device is fixedly connected with the pressing plate; the pressure plate is suitable for fixing the casting mold through movement along the fixing cavity under the driving of the telescopic device.

3. The double-station reverse casting machine according to claim 2, wherein: the fixing mechanism further comprises a pair of baffles, rotating rods are fixed on the two sides of the fixed plate of the rotating wheel, the baffles are located on the two sides of the fixed plate and are rotatably connected with the rotating rods, an extension plate is arranged on one side, far away from the rotating wheel, of the baffles, the baffles are hinged with the two sides of the pressing plate through hinged plates, so that when the pressing plate is fixed on the casting mold in the fixed cavity, the pressing plate drives the baffles to rotate around the rotating rods to the fixed cavity, and then multi-directional limiting is carried out on the casting mold in the fixed cavity through the baffles and the extension plate.

4. The double-station reverse casting machine according to claim 2, wherein: the clamping assembly is arranged in the mounting groove and comprises a clamping block and an ejection spring, two ends of the ejection spring are respectively connected with the clamping block and the bottom of the mounting groove, and symmetrical clamping grooves are formed in two sides of the middle of the rotating shaft; the mounting groove is suitable for corresponding to the clamping groove through the axial movement of the connecting sleeve, so that the clamping block is ejected out of the clamping groove under the elastic force of the ejection spring to be clamped.

5. The double-station reverse casting machine according to claim 2, wherein: the middle part of fixed plate is followed the moving direction of clamp plate is provided with the spout, the middle part of runner radially be provided with the logical groove that the spout aligns, the clamp plate is close to one side of fixed plate is fixed with the second roof, the second roof is located in the spout, be fixed with first roof on the coupling assembling, first roof is suitable for to pass logical groove with the second roof cooperates, so that the second roof is followed the clamp plate is followed when the spout slides, can drive coupling assembling follows axial displacement is carried out in the pivot.

6. The double-station reverse casting machine according to any one of claims 2 to 5, wherein: the limiting mechanism comprises an axial limiting structure and a rotary limiting structure, and the axial limiting structure is suitable for limiting the axial movement of the rotating wheel along the rotating shaft; the rotation limiting structure is suitable for limiting the rotation of the rotating wheel, and when the fixing mechanism completes the fixing of the casting mold in the fixing cavity, the rotation limiting structure is suitable for relieving the rotation limiting of the rotating wheel under the driving of the fixing mechanism.

7. The double-station reverse casting machine according to claim 6, wherein: the axial limiting structure comprises a positioning rod and a positioning groove, the positioning groove is formed in the position, close to the end face of the rack, of the rotating wheel, the positioning rod is fixed to the lower portion of the rack, and the positioning rod is suitable for being matched with the positioning groove to limit axial movement of the rotating wheel.

8. The double-station reverse casting machine according to claim 6, wherein: the rotating limiting structure comprises a limiting assembly and a limiting groove, the limiting groove is radially arranged in the rotating wheel, one end of the limiting groove is communicated with the side wall of the rotating wheel, the other end of the limiting groove is communicated with the end face, close to the fixing mechanism, of the rotating wheel, and the limiting assembly is located right below the rotating wheel; a connecting plate is fixed on one side of the pressing plate close to the rotating wheel and is in sliding fit with the limiting groove;

when the fixing mechanism does not fix the casting mold in the fixing cavity, the limiting assembly is suitable for limiting the rotation of the rotating wheel through the matching with the limiting groove; when the fixing mechanism fixes the casting mold in the fixing cavity, the connecting plate is suitable for ejecting the limiting component out of the limiting groove through the movement along the limiting groove so as to relieve the rotation limiting of the rotating limiting structure on the rotating wheel.

9. The dual station reverse caster of claim 8, wherein: a transverse plate is fixedly arranged at the lower part of the rack, the transverse plate is positioned right below the rotating wheel, and the limiting assembly is arranged on the transverse plate; the limiting assembly comprises a limiting rod and a limiting spring, the limiting rod is connected with the transverse plate in a sliding mode, a limiting block is fixed to the top of the limiting rod, the limiting spring is sleeved on the limiting rod, the two ends of the limiting spring are respectively abutted to the limiting block and the transverse plate, and the limiting block is suitable for being matched with the limiting groove under the elastic force of the limiting spring.

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