CN110773732A

CN110773732A - Annular modeling line

Info

Publication number: CN110773732A
Application number: CN201911064581.4A
Authority: CN
Inventors: 李坤; 田志君; 马金晶
Original assignee: Weifang Kailong Machinery Co Ltd
Current assignee: Weifang Kailong Machinery Co Ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-02-11

Abstract

The invention is suitable for the technical field of clay sand molding, and provides an annular molding line which comprises a conveying track, a transmission device and a poking device, wherein the conveying track comprises a box returning track, a transfer line and a pouring ball track; the transmission device comprises a first transmission device and a second transmission device; the poking device comprises a box pushing machine, a poking platform and a sand box. Therefore, the invention can realize effective molding production of the die and improve the working efficiency and the working quality.

Description

Annular modeling line

Technical Field

The invention relates to the technical field of clay sand modeling, in particular to an annular modeling line.

Background

A die is a tool that forms a blank into an article having a particular shape and size under an external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The die has a specific contour or cavity shape, and the blank can be separated (blanked) according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined.

The mould is in process of production, adopt the sand mould more, form the mould that corresponds, among the prior art, when adopting the sand mould, the inside sand that exists easily of cover incasement, influence secondary casting mould quality, when moving the sand box simultaneously, mostly be single or a plurality of same drive arrangement, thereby make it when moving a plurality of sand boxes, there is the unstable potential safety hazard of sand box removal, the sand box is after disclosing sand and accomplishing, cause the sand unstability easily during the secondary dress sand, influence sand extrusion quality.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present invention is to provide an endless molding line that can improve mold molding efficiency and mold molding quality.

In order to achieve the purpose, the invention provides an annular molding line which comprises a conveying track, a transmission device and a poking device, wherein the conveying track comprises a box returning track, a transferring line and a pouring ball track, the box returning track and the pouring ball track are both positioned on one side of the transferring line, a hoisting moving device is arranged between the box returning track and the transferring line, one end of the box returning track is connected with the transferring line through the poking device, a plurality of table trolleys are arranged on the transferring line, and the transferring line is an annular line; the transmission device comprises a first transmission device and a second transmission device, the first transmission device is positioned at the straight edge section of the transfer line, the second transmission device is positioned at the arc section of the transfer line, the first transmission device comprises a power part, a plurality of transmission wheels, a connecting piece sleeved with the transmission wheels and a plurality of push blocks positioned on the connecting piece, the lower ends of the push blocks are fixedly connected with the connecting piece, the upper ends of the push blocks are obliquely arranged, the table trolley comprises a trolley body, a traction chain, a guide wheel and a limiting post, the traction chain is positioned at one side of the trolley body, a guard plate is arranged at the other side of the trolley body, the guard plate is movably connected with the traction chain of the adjacent trolley body, the guide wheel is positioned at one side of the trolley body, the push blocks are positioned between the adjacent guide wheels, the limiting post is positioned above the guide wheel, the length of the limiting post is greater than the diameter of the, the limiting column is movably arranged in the limiting groove; the poking device comprises a box pushing machine, a poking platform and a sand box, wherein the box pushing machine is positioned on the inner side of the annular transfer line, the poking machine is positioned above the poking platform, and a shakeout opening is arranged on the box poking platform, a shakeout mechanism is arranged on the side of the sand box and comprises a rotary rod, a driven rod and a reset piece, the rotary rod is provided with a bending end, the bending end is connected with the sand box through a fixing plate, a rotating shaft is arranged between the rotating rod and the fixing plate, a moving groove is arranged on the rotating rod, the driven rod is connected with the rotating rod through a limiting post, the limiting column is movable in the moving groove, the driven rod is provided with a fixed rod with a bending radian, a baffle plate is arranged below the sand box, and the baffle is provided with a fixing column, the fixing column is movable in a fixing rod with radian, and the driven rod is coupled with the sand box.

According to the annular modeling line, the molten iron pouring device is arranged on the pouring ball rail and comprises a bearing box and a heating device positioned inside the bearing box, the bearing box is connected with the pouring ball rail through a support frame, a sliding groove is formed in the support frame, and the bearing box is movably arranged in the sliding groove.

According to the annular modeling line, the table trolley is provided with the wheel assembly, the wheel assembly comprises wheels, wheel covers, wheel shafts and wheel bearings, the wheels are sleeved with the wheel shafts, the wheel bearings are located in the wheels, the wheel bearings are sleeved with the wheel shafts, and spacing sleeves and shaft retaining rings are arranged between the wheel shafts and the wheels.

According to the annular modeling line, the guide wheel is connected with the table-board trolley through the guide wheel assembly, the guide wheel assembly comprises chain plates, a guide wheel shaft, bearings and locking pieces, the guide wheel is sleeved with the guide wheel shaft, the chain plates comprise inner chain plates and outer chain plates, the chain plates are sleeved with the guide wheel shaft, guide wheel sleeves, bearings and lining rings are installed between the guide wheel shaft and the guide wheel, and guide wheel covers are arranged outside the guide wheel.

According to the annular molding line, the driving wheel comprises a gear and a chain wheel, the gear is provided with the safety device, the safety device comprises a safety pin, a shaft sleeve and a driving shaft, the gear is sleeved on the driving shaft, the safety pin is inserted in the shaft sleeve and the gear, and a sleeve is arranged between the safety pin and the gear.

According to the annular modeling line, the box pushing machine comprises a pushing piece, a transverse moving track and a supporting plate, the height of the supporting plate is equal to that of the transfer line, the pushing piece is a multi-section cylinder, the multi-section cylinder is fixedly connected with the transverse moving track, a support is arranged at the end part of the multi-section cylinder, and the support is connected with the transverse moving track through a moving plate and a roller.

According to the annular molding line, the box poking machine comprises a lifting piece, a fixing frame and four cleaning pieces located below the lifting piece, the lifting piece is a lifting cylinder, the cleaning pieces comprise a connecting plate and rolling brushes located at the end portions of the connecting plate, the rolling brushes are made of steel wires, the number of the rolling brushes is four, the lifting piece is located in the middle of the fixing frame, the cleaning pieces are located inside the fixing frame, and the cleaning pieces and a sand falling port are located on the same vertical line.

According to the annular molding line, the side of the sand box is provided with the boss, the fixing frame is provided with the limiting device, the limiting device comprises the pressing air cylinder and the limiting piece connected with the pressing air cylinder, the pressing air cylinder is located on the side of the fixing frame, the limiting piece is movably connected with the output end of the pressing air cylinder, the limiting piece is connected with the fixing frame in a shaft mode, and the limiting piece is provided with the bending angle.

According to the annular molding line, the sand box comprises a plurality of layers of the pouring boxes, the side of each pouring box is provided with the handle and the fixing piece, the fixing pieces are fixing buckles, and adjacent pouring boxes are connected through the fixing buckles.

According to the ring-shaped molding line, the two limiting devices are respectively a left limiting device and a right limiting device, the bending angle of the limiting piece is 90 degrees, the limiting piece is provided with the cushion pad, and the cushion pad is made of cushion rubber.

The invention provides an annular molding line which comprises a conveying track, a transmission device and a poking device, wherein the conveying track comprises a box returning track, a transferring line and a pouring ball track, the box returning track and the pouring ball track are positioned on one side of the transferring line, a hoisting moving device is arranged between the box returning track and the transferring line, one end of the box returning track is connected with the transferring line through the poking device, a plurality of trolley platforms are arranged on the transferring line, the transferring line is an annular line, and the trolley platforms are circularly moved through the annular transferring line, so that the trolley platforms can drive a sand box positioned on the trolley platforms to move, and the effective molding of a mold in the sand box and the molding efficiency and molding quality of the mold are ensured; the transmission device comprises a first transmission device and a second transmission device, the first transmission device is positioned at the straight edge section of the transfer line, the second transmission device is positioned at the arc section of the transfer line, the first transmission device comprises a power part, a plurality of transmission wheels, a connecting piece sleeved with the transmission wheels and a plurality of push blocks positioned on the connecting piece, the lower ends of the push blocks are fixedly connected with the connecting piece, the upper ends of the push blocks are obliquely arranged, the table trolley comprises a trolley body, a traction chain, a guide wheel and a limiting post, the traction chain is positioned at one side of the trolley body, a guard plate is arranged at the other side of the trolley body, the guard plate is movably connected with the traction chain of the adjacent trolley body, the guide wheel is positioned at one side of the trolley body, the push blocks are positioned between the adjacent guide wheels, the limiting post is positioned above the guide wheel, the length of the limiting post is greater than the diameter of the, the limiting column moves in the limiting groove, and provides power for the operation of the table trolley through the two transmission devices, so that the table trolley can effectively and quickly move on an annular transfer line, the working efficiency of the table trolley is improved, and the stability and the safety of the table trolley in the transportation process are ensured; the poking device comprises a box pushing machine, a box poking platform and a sand box, wherein the box pushing machine is positioned on the inner side of an annular transfer line, the box poking machine is positioned above the box poking platform, a sand dropping port is formed in the box poking platform, a sand dropping mechanism is arranged on the side of the sand box and comprises a rotary rod, a driven rod and a reset piece, the rotary rod is provided with a bending end, the bending end is connected with the sand box through a fixing plate, a rotary shaft is installed between the rotary rod and the fixing plate, a moving groove is formed in the rotary rod, the driven rod is connected with the rotary rod through a limiting post, the limiting post moves in the moving groove, a fixing rod with a bent radian is arranged on the driven rod, a baffle is arranged below the sand box, a fixing post is arranged on the baffle and moves in the fixing rod with the radian, and the driven, the sand in the sand box is controlled by the shakeout mechanism, so that the sand in the sand box can be disassembled by the box poking device, the cleanliness of the interior of the sand box is improved, and the quality of the mold during secondary molding is ensured. The invention has the beneficial effects that: the position of the sand box is adjusted in a circulating mode through the transfer line, so that the circulating processing is realized, the stability of the sand box in the moving process is guaranteed, the sand inside the sand box can be effectively disassembled, the cleanliness inside the sand box is guaranteed, and the secondary forming efficiency and quality of the mold are improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of a first transmission of the present invention;

FIG. 3 is a top plan view of the first drive of the present invention;

FIG. 4 is a schematic view of the second transmission and the trolley of the present invention;

FIG. 5 is a schematic view of the structure of the cart for a table top of the present invention;

FIG. 6 is a schematic structural view of a box pushing machine according to the present invention;

FIG. 7 is a schematic view showing the structure of a box poking machine according to the present invention;

FIG. 8 is a schematic structural view of a shakeout mechanism according to the present invention;

FIG. 9 is a schematic view of the idler assembly of the present invention;

FIG. 10 is a schematic structural view of a wheel assembly according to the present invention;

FIG. 11 is a schematic view of the safety device of the present invention;

in the figure, 11-box returning track, 12-transfer line, 13-casting ball track, 14-hoisting moving device, 21-first transmission device, 211-driving part, 212-gear, 213-chain wheel, 214-connecting part, 215-pushing block, 216-speed reducer, 217-triangular belt wheel, 218-triangular belt, 22-second transmission device, 221-driving shaft, 222-limiting groove, 3-trolley, 31-trolley body, 32-traction chain, 33-guide wheel, 34-limiting column, 351-wheel, 36-guard plate, 41-box pushing machine, 411-pushing part, 412-transverse moving track, 413-supporting plate, 414-bracket, 415-moving plate, 416-roller, 42-box poking machine, 421-lifting element, 422-fixing frame, 423-connecting plate, 424-rolling brush, 43-poking box platform, 44-sand box, 441-handle, 442-fixing element, 443-baffle, 444-fixing column, 51-rotating rod, 511-moving groove, 52-driven rod, 53-resetting element, 54-fixing plate, 55-fixing rod, 611-inner chain plate, 612-outer chain plate, 62-guide wheel shaft, 63-bearing, 64-locking plate, 65-guide wheel sleeve, 66-lining ring, 67-guide wheel cover, 71-wheel cover, 72-spacer sleeve, 73-wheel shaft, 74-shaft baffle ring, 75-wheel bearing, 81-sleeve, 82-safety pin, 83-shaft sleeve and 84-driving shaft.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1, the invention provides an annular molding line, which comprises a conveying track, a transmission device and a poking device, wherein the conveying track comprises a box returning track 11, a transferring track 12 and a casting ball track 13, the box returning track 11 and the casting ball track 13 are both positioned on one side of the transferring track 12, a hoisting moving device 14 is arranged between the box returning track 11 and the transferring track 12, one end of the box returning track 11 is connected with the transferring track 12 through the poking device, a plurality of trolley tables 3 are arranged on the transferring track 12, the transferring track 12 is an annular line, and the trolley tables 3 are circularly moved through the annular transferring track 12, so that the trolley can drive a sand box 44 positioned on the trolley 3 to move, and the effective molding of a mold inside the sand box 44 and the molding efficiency and the molding quality of the mold are ensured; the transmission device comprises a first transmission device 21 and a second transmission device 22, the first transmission device 21 is located at the straight edge section of the transfer line 12, the second transmission device 22 is located at the arc section of the transfer line 12, as shown in fig. 2-3, the first transmission device 21 comprises a power piece 211, a plurality of transmission wheels, a connecting piece 214 sleeved with the transmission wheels and a plurality of push blocks 215 located on the connecting piece 214, the lower end of the push block 215 is fixedly connected with the connecting piece 214, the upper end of the push block 215 is obliquely arranged, and a speed reducer 216, a triangular belt wheel 217 and a triangular belt 218 are installed between the power piece 211 and the transmission wheels, so that the rotating speed of the transmission wheels can be adjusted conveniently. As shown in fig. 5, the trolley 3 includes a trolley body 31, a drag chain 32, a guide wheel 33 and a limit post 34, the drag chain 32 is located at one side of the trolley body 31, and the other side of the vehicle body 31 is provided with a guard plate 36, the guard plate 36 is movably connected with the traction chain 32 of the adjacent vehicle body 31, the guide wheel 33 is positioned at one side of the vehicle body 31, the pushing block 34 is located between the adjacent guide wheels 33, the limiting column 36 is located above the guide wheels 33, and the length of the limit post 36 is greater than the diameter of the guide wheel 33, as shown in fig. 4, the second transmission device 22 includes a driving shaft 221 and a limit groove 222 annularly arranged on the driving shaft 221, the limit post 34 is movable in the limit groove 222, the two transmission devices provide power for the operation of the table trolley 3, so that the table trolley can effectively and quickly move on the annular transfer line 12, the working efficiency of the table trolley is improved, and the stability and the safety of the table trolley in the transportation process are ensured; the poking device comprises a box pushing machine 41, a box poking machine 42, a box poking platform 43 and a sand box 44, wherein the box pushing machine 41 is positioned on the inner side of the annular transfer line 12, the box poking machine 42 is positioned above the box poking platform 43, a sand dropping port is arranged on the box poking platform 43, a sand dropping mechanism is arranged on the side of the sand box 44 and comprises a rotating rod 51, a driven rod 52 and a reset piece 53, the rotating rod 1 is provided with a bending end, the bending end is connected with the sand box 44 through a fixing plate 54, a rotating shaft is arranged between the rotating rod 51 and the fixing plate 54, a moving groove 511 is arranged on the rotating rod 51, the driven rod 52 is connected with the rotating rod 51 through a limiting column, the limiting column moves in the moving groove 511, a fixing rod 55 with bending is arranged on the driven rod 52, a baffle 443 is arranged below the sand box 44, and a fixing column 444 is arranged on, the fixing post 444 is movably arranged in the fixing rod 55 with the radian, the driven rod 52 is connected with the sand box 44 in a shaft mode, and sand in the sand box 44 is controlled through the sand shakeout mechanism, so that the box poking machine 42 can be guaranteed to detach the sand in the sand box 44, the cleanliness of the interior of the sand box 44 is improved, and the quality of a mold during secondary molding is guaranteed.

Preferably, the molten iron pouring device is arranged on the pouring ball rail, and comprises a bearing box and a heating device positioned in the bearing box, the bearing box is connected with the pouring ball rail through a support frame, a sliding groove is formed in the support frame, the bearing box moves in the sliding groove, molten iron is poured into the preliminarily molded sand box 44 through the molten iron pouring device, mold molding is achieved, the position of the bearing box is adjusted through the sliding groove, the bearing box can be guaranteed to be capable of directly pouring molten iron into the sand box 44, and pouring efficiency and pouring accuracy are improved.

In addition, as shown in fig. 10, the trolley 3 of the present invention is provided with a wheel assembly, the wheel assembly includes a wheel 351, a wheel cover 71, a wheel shaft 73 and a wheel bearing 75, the wheel 351 is sleeved on the wheel shaft 73, the wheel bearing 75 is located inside the wheel 351, the wheel bearing 75 is sleeved on the wheel shaft 73, a spacer 72 and a shaft washer 74 are installed between the wheel shaft 73 and the wheel 351, and the spacer 72 and the shaft washer 74 ensure the tightness between the wheel 351 and the wheel shaft 73, thereby improving the stability during the moving process and ensuring the effective moving and transportation of the sand box 44.

Further, the guide wheel 33 of the present invention is connected to the table trolley 3 through a guide wheel assembly, as shown in fig. 9, the guide wheel assembly includes a chain plate, a guide wheel shaft 62, a bearing 63 and a locking piece 64, the guide wheel 33 is sleeved on the guide wheel shaft 62, the chain plate includes an inner chain plate 611 and an outer chain plate 612, the chain plate is sleeved on the guide wheel shaft 62, a guide wheel sleeve 65, a bearing 63 and a lining ring 66 are installed between the guide wheel shaft 62 and the guide wheel 33, a guide wheel cover 67 is disposed outside the guide wheel 33, the guide wheel assembly is used to ensure effective connection between the guide wheel 33 and the transfer line 12, stability of the guide wheel 33 in the working process is improved, effective transportation of the table trolley 3 to the sand box 44 is ensured, and working.

Preferably, the driving wheel of the present invention comprises a gear 212 and a chain wheel 213, as shown in fig. 11, a safety device is mounted on the gear 212, the safety device comprises a safety pin 82, a shaft sleeve 83 and a driving shaft 84, the gear 212 is sleeved on the driving shaft 84, the safety pin 82 is inserted in the shaft sleeve 83 and the gear 212, a sleeve 81 is mounted between the safety pin 82 and the gear 212, and the safety device is used to limit and control the position of the trolley 3 during the stationary or maintenance process, so as to ensure the position of the trolley 3 and reduce the occurrence of potential safety hazards.

In the implementation process of the invention: the worker moves the sand box 44 on the box returning track 11 to the molding machine for sand filling molding by the lifting moving device 14, the molding machine is installed between the box returning track 11 and the transfer line 12, the lifting moving device 14 adopts pneumatic lifting, the molding machine adopts a high-pressure multi-contact molding machine, the molding machine can be searched for in hundreds of degrees, the working principle and the composition structure of the molding machine belong to the prior art, and the detailed description is omitted. After the molding machine completes the molding of the sand in the sand box 44, the molded sand box 44 is moved to the transfer line 12 by the lifting and moving device 14, the transfer line 12 is rotated under the action of the transmission device, the molded sand box 44 is moved to one side of the casting ball rail 13 in the rotation process, then the sand box 44 is subjected to molten iron casting by the molten iron casting device on the casting ball rail 13, the cast sand box 44 is transported to the position of the box pushing machine 41 by the transfer line 12, as shown in fig. 6, the box pushing machine 41 comprises a pushing piece 411, a transverse moving rail 412 and a supporting plate 413, the height of the supporting plate 413 is equal to the height of the transfer line 12, the pushing piece 411 is a multi-section cylinder, the multi-section cylinder is fixedly connected with the transverse moving rail 412, a bracket 414 is arranged at the end of the multi-section cylinder, the bracket 414 is connected with the transverse moving rail 412 by a roller 415 and a, the casing of the bracket 414 and the abutting bracket 414 is moved along the transverse moving rail 412 by the multi-section cylinder, so that the casing is moved to the lower part of the box poking machine 42. As shown in fig. 7, the box poking machine 42 includes a lifting member 421, a fixing frame 422 and a cleaning member located below the lifting member 421, the lifting member 421 is a lifting cylinder, the cleaning member includes a connecting plate 423 and a rolling brush 424 located at an end of the connecting plate 423, the rolling brush 424 is made of steel wire, four rolling brushes 424 are installed, the lifting member 421 is located in the middle of the fixing frame 422, the cleaning member is located inside the fixing frame 422, and the cleaning member and the sand drop port are located on the same vertical line. The sand box 44 is provided with a boss at the side, the fixing frame 422 is provided with a limiting device, the limiting device comprises a pressing cylinder and a limiting part connected with the pressing cylinder, the pressing cylinder is positioned at the side of the fixing frame 422, the limiting part is movably connected with the output end of the pressing cylinder, the limiting part is coupled with the fixing frame 422 and has a bending angle, the limiting part is pushed by the pressing cylinder to rotate along the coupling part, the upper end part of the limiting part is extruded and fixed on the boss of the sand box 44 in the rotating process, so that the position stability of the sand box 44 is ensured, the limiting device is provided with two left limiting devices and right limiting devices respectively, the bending angle of the limiting part is 90 degrees, the limiting part is provided with a cushion rubber, the cushion rubber is used for adjusting the angle of the limiting part, so that the limiting part can rotate, facilitating the fixing of the boss of the flask 44. After the sand box 44 is fixed, the lifting piece 421 drives the cleaning piece to poke the sand mold and the casting inside the sand box 44 onto the shakeout machine, when the sand mold and the casting are poked, as shown in fig. 8, firstly, the baffle 443 at the bottom of the sand box 44 is opened through the shakeout mechanism, the rotating rod 51 is rotated to drive the driven rod 52 to rotate, the bending radian of the fixing rod 55 of the driven rod 52 is separated from the limit of the fixing column 444 in the rotating process, so that the baffle 443 is opened under the action of self gravity, then, the lifting piece 421 drives the cleaning piece to push the sand mold and the casting inside the sand box 44 to drop onto the shakeout machine, the shakeout machine is used for separating sand and the casting, and the sand can be reused after secondary treatment. In the process of descending the sand box 44 which finishes the shakeout, the baffle 443 can ascend, when the sand box ascends to a preset position, the fixing column 444 jacks one end of the fixing rod 55 with a bending angle, so that the fixing rod 55 rotates in the shakeout process, when the fixing column 444 passes through the end of the fixing rod 55, the fixing column 444 falls above the bending angle, and at the moment, under the action of the resetting piece 53, the rotating rod 51 moves to the left, and the position of the fixing column 444 is limited. The department is in order to guarantee that baffle 413 effectively bears the weight of the inside sand of sand box 44, and two baffle 413 butt punishments are divided into straight side section and segmental arc, prevent that baffle 443 from appearing the solid phenomenon of card in rotatory in-process, and the influence effectively bears the weight of the inside sand of sand box 44. The reset piece 53 adopts a spring, and the spring is installed in an inclined manner, so that the maximum pulling force on the rotating rod 51 is ensured, the rotating rod 51 can realize effective rotation, and the working quality and the working efficiency are ensured. After sand and the castings in the sand box 44 are poked, the limiting device moves reversely to break away from fixing the sand box 44, so that the empty sand box 44 moves to the box returning rail 11 under the pushing of the next sand box filled with the sand and the castings, the circular movement is realized in sequence, and the working efficiency is ensured. The sand box 44 comprises a plurality of layers of suitcases, a handle 441 and a fixing piece 442 are arranged at the side of each suitcase, the fixing piece 442 is a fixing buckle, and adjacent suitcases are connected through the fixing buckle.

In conclusion, the invention provides an annular molding line, which comprises a conveying track, a transmission device and a poking device, wherein the conveying track comprises a box returning track, a transferring line and a pouring ball track, the box returning track and the pouring ball track are positioned on one side of the transferring line, a hoisting moving device is arranged between the box returning track and the transferring line, one end of the box returning track is connected with the transferring line through the poking device, a plurality of table trolleys are arranged on the transferring line, the transferring line is an annular line, and the table trolleys are circularly moved through the annular transferring line, so that the table trolleys can drive sand boxes positioned on the table trolleys to move, and the effective molding, the molding efficiency and the molding quality of molds in the sand boxes are ensured; the transmission device comprises a first transmission device and a second transmission device, the first transmission device is positioned at the straight edge section of the transfer line, the second transmission device is positioned at the arc section of the transfer line, the first transmission device comprises a power part, a plurality of transmission wheels, a connecting piece sleeved with the transmission wheels and a plurality of push blocks positioned on the connecting piece, the lower ends of the push blocks are fixedly connected with the connecting piece, the upper ends of the push blocks are obliquely arranged, the table trolley comprises a trolley body, a traction chain, a guide wheel and a limiting post, the traction chain is positioned at one side of the trolley body, a guard plate is arranged at the other side of the trolley body, the guard plate is movably connected with the traction chain of the adjacent trolley body, the guide wheel is positioned at one side of the trolley body, the push blocks are positioned between the adjacent guide wheels, the limiting post is positioned above the guide wheel, the length of the limiting post is greater than the diameter of the, the limiting column moves in the limiting groove, and provides power for the operation of the table trolley through the two transmission devices, so that the table trolley can effectively and quickly move on an annular transfer line, the working efficiency of the table trolley is improved, and the stability and the safety of the table trolley in the transportation process are ensured; the poking device comprises a box pushing machine, a box poking platform and a sand box, wherein the box pushing machine is positioned on the inner side of an annular transfer line, the box poking machine is positioned above the box poking platform, a sand dropping port is formed in the box poking platform, a sand dropping mechanism is arranged on the side of the sand box and comprises a rotary rod, a driven rod and a reset piece, the rotary rod is provided with a bending end, the bending end is connected with the sand box through a fixing plate, a rotary shaft is installed between the rotary rod and the fixing plate, a moving groove is formed in the rotary rod, the driven rod is connected with the rotary rod through a limiting post, the limiting post moves in the moving groove, a fixing rod with a bent radian is arranged on the driven rod, a baffle is arranged below the sand box, a fixing post is arranged on the baffle and moves in the fixing rod with the radian, and the driven, the sand in the sand box is controlled by the shakeout mechanism, so that the sand in the sand box can be disassembled by the box poking device, the cleanliness of the interior of the sand box is improved, and the quality of the mold during secondary molding is ensured. The invention has the beneficial effects that: the position of the sand box is adjusted in a circulating mode through the transfer line, so that the circulating processing is realized, the stability of the sand box in the moving process is guaranteed, the sand inside the sand box can be effectively disassembled, the cleanliness inside the sand box is guaranteed, and the secondary forming efficiency and quality of the mold are improved.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An annular molding line is characterized by comprising a conveying track, a transmission device and a poking device, wherein the conveying track comprises a box returning track, a transferring line and a pouring ball rail, the box returning track and the pouring ball rail are both positioned on one side of the transferring line, a hoisting moving device is arranged between the box returning track and the transferring line, one end of the box returning track is connected with the transferring line through the poking device, a plurality of table trolleys are arranged on the transferring line, and the transferring line is an annular line;

the transmission device comprises a first transmission device and a second transmission device, the first transmission device is positioned at the straight edge section of the transfer line, the second transmission device is positioned at the arc section of the transfer line, the first transmission device comprises a power part, a plurality of transmission wheels, a connecting piece sleeved with the transmission wheels and a plurality of push blocks positioned on the connecting piece, the lower ends of the push blocks are fixedly connected with the connecting piece, the upper ends of the push blocks are obliquely arranged, the table trolley comprises a trolley body, a traction chain, a guide wheel and a limiting post, the traction chain is positioned at one side of the trolley body, a guard plate is arranged at the other side of the trolley body, the guard plate is movably connected with the traction chain of the adjacent trolley body, the guide wheel is positioned at one side of the trolley body, the push blocks are positioned between the adjacent guide wheels, the limiting post is positioned above the guide wheel, the length of the limiting post is greater than the diameter of the, the limiting column is movably arranged in the limiting groove;

the poking device comprises a box pushing machine, a poking platform and a sand box, wherein the box pushing machine is positioned on the inner side of the annular transfer line, the poking machine is positioned above the poking platform, and a shakeout opening is arranged on the box poking platform, a shakeout mechanism is arranged on the side of the sand box and comprises a rotary rod, a driven rod and a reset piece, the rotary rod is provided with a bending end, the bending end is connected with the sand box through a fixing plate, a rotating shaft is arranged between the rotating rod and the fixing plate, a moving groove is arranged on the rotating rod, the driven rod is connected with the rotating rod through a limiting post, the limiting column is movable in the moving groove, the driven rod is provided with a fixed rod with a bending radian, a baffle plate is arranged below the sand box, and the baffle is provided with a fixing column, the fixing column is movable in a fixing rod with radian, and the driven rod is coupled with the sand box.

2. The ring molding line according to claim 1, wherein the casting ball track is provided with a molten iron casting device, the molten iron casting device comprises a bearing box and a heating device positioned inside the bearing box, the bearing box is connected with the casting ball track through a support frame, the support frame is provided with a sliding groove, and the bearing box moves in the sliding groove.

3. The ring molding line of claim 1, wherein the trolley has a wheel assembly mounted thereon, the wheel assembly comprising a wheel, a wheel cover, a wheel axle, and a wheel bearing, the wheel is received on the wheel axle, the wheel bearing is located inside the wheel, the wheel bearing is received on the wheel axle, and a spacer and an axle collar are mounted between the wheel axle and the wheel.

4. An annular shaping line according to claim 1, wherein the guide wheel is connected with the table trolley through a guide wheel assembly, the guide wheel assembly comprises chain plates, a guide wheel shaft, bearings and locking pieces, the guide wheel is sleeved with the guide wheel shaft, the chain plates comprise inner chain plates and outer chain plates, the chain plates are sleeved with the guide wheel shaft, a guide wheel sleeve, a bearing and a lining ring are arranged between the guide wheel shaft and the guide wheel, and a guide wheel cover is arranged outside the guide wheel.

5. The ring molding line of claim 1, wherein the drive wheel comprises a gear and a sprocket, the gear having a safety device mounted thereon, the safety device comprising a safety pin, a bushing, and a drive shaft, the gear engaging the drive shaft, and the safety pin engaging the bushing and the gear, the safety pin and the gear having a bushing mounted therebetween.

6. The ring molding line of claim 1, wherein the box pushing machine comprises a pushing member, a transverse moving track and a supporting plate, the supporting plate has a height equal to the height of the transfer line, the pushing member is a multi-section cylinder, the multi-section cylinder is fixedly connected with the transverse moving track, a bracket is arranged at the end of the multi-section cylinder, and the bracket is connected with the transverse moving track through a moving plate and a roller.

7. The ring-shaped molding line according to claim 1, wherein the box poking machine comprises a lifting piece, a fixing frame and four cleaning pieces located below the lifting piece, the lifting piece is a lifting cylinder, the cleaning pieces comprise a connecting plate and four rolling brushes located at the end parts of the connecting plate, the rolling brushes are made of steel wires, the lifting piece is located in the middle of the fixing frame, the cleaning pieces are located inside the fixing frame, and the cleaning pieces and the sand drop port are located on the same vertical line.

8. The ring molding line according to claim 7, wherein the sand box is provided with a boss at the side, and the fixing frame is provided with a limiting device, the limiting device comprises a pressing cylinder and a limiting member connected with the pressing cylinder, the pressing cylinder is located at the side of the fixing frame, the limiting member is movably connected with the output end of the pressing cylinder, the limiting member is coupled with the fixing frame by a shaft, and the limiting member has a bending angle.

9. An annular moulding line according to claim 1, wherein the sand box comprises a plurality of layers of boxes, and the sides of the boxes are provided with handles and fixing pieces, and the fixing pieces are fixing buckles, and adjacent boxes are connected through the fixing buckles.

10. The ring molding line according to claim 7, wherein two limiting devices are installed, namely a left limiting device and a right limiting device, the limiting device is bent at an angle of 90 degrees, a cushion pad is arranged on the limiting device, and the cushion pad is made of cushion rubber.