A high-efficiency cooling device for casting mold shell

Abstract

The present invention discloses an efficient cooling device for a casting mold shell, comprising: a conveying mechanism, which is provided with a loading station and an unloading station arranged in a front-to-back manner and includes a driving wheel, a transmission wheel and a flexible transmission member wound between the driving wheel and the transmission wheel, and the conveying direction of the conveying mechanism is defined as the front-to-back direction; a pallet mechanism, which is provided with a plurality of pallet racks and a support plate rack at intervals along the length direction of the flexible transmission member, and includes a pallet rack and a support plate rack, the pallet rack is connected to the flexible transmission member, two support plate racks are provided and are front-to-back opposite, the two support plate racks are both slidably connected to the pallet rack and jointly define a receiving groove for accommodating the casting mold shell; a driving mechanism, which is connected to the support plate rack to drive the support plate rack to move forward and backward. In the process of the conveying mechanism conveying the casting mold shell to the unloading station, the two support plate racks can clamp the casting mold shell to ensure its stability, and can simultaneously conduct heat and convect heat to the casting mold shell to improve the cooling effect; and can cooperate with the robot to work to improve the efficiency of the casting process.

Description

Technical Field

[0001] The invention relates to the technical field of casting equipment, and in particular to a high-efficiency cooling device for a casting mold shell. Background Art

[0002] In the stainless steel casting process, the mold shell needs to be heated to about 1200℃, and then molten steel at 1600℃ is poured into the mold shell. The mold shell is heated to prevent the molten steel from cooling too quickly when it contacts the mold shell, thereby reducing the fluidity of the molten steel.

[0003] At present, the steps of the stainless steel casting process are completely manually operated. First, the mold shell is heated to 1200℃ in a box furnace; then, the mold shell is pried up manually with a long rod and placed in the molten steel furnace so that the molten steel can be poured into the mold shell; then, the entire string of mold shells is transferred to a high-temperature resistant sand tray and leaned against bricks to cool naturally for about 5 minutes, so that the molten steel changes from liquid to solid; finally, the mold shell is taken out and placed in a cooling room for forced cooling.

[0004] Due to the high temperature of the working environment and the heavy workpiece, the workers face problems such as poor working environment and high labor intensity. In order to reduce labor intensity, mature robot technology is adopted, and robots are used to complete the automatic grasping of the mold shell and receiving molten steel. The robot can clamp the casting mold shell and transfer it to the bottom of the molten steel furnace so that the molten steel can be poured into the casting mold shell. The mold shell that has received the molten steel needs to be cooled and wait for the molten steel to solidify, and then the robot will take it away and enter forced cooling. However, at present, an efficient cooling equipment has not been developed that can cooperate with the robot to improve the efficiency of stainless steel casting. Summary of the invention

[0005] The object of the present invention is to provide a high-efficiency cooling device for a casting mold shell to solve one or more technical problems existing in the prior art.

[0006] The technical solutions adopted to solve the above technical problems are:

[0007] The present invention provides a casting mold shell efficient cooling device, comprising:

[0008] A conveying mechanism, comprising a driving wheel, a transmission wheel and a flexible transmission member, wherein the flexible transmission member is wound between the driving wheel and the transmission wheel, wherein the conveying direction of the conveying mechanism is defined as a front-to-back direction, and wherein the conveying mechanism is provided with a loading station and a unloading station, wherein the loading station and the unloading station are arranged in a front-to-back manner;

[0009] A tray mechanism, which is provided with a plurality of trays at intervals along the length direction of the flexible transmission member, the tray mechanism comprising a tray frame and a backing plate frame, the tray frame is connected to the flexible transmission member, the backing plate frames are provided with two and are front and back opposite, the two backing plate frames are both slidably connected to the tray frame, and the two backing plate frames and the tray frame jointly define a receiving groove for receiving the casting mold shell;

[0010] A driving mechanism is connected to the backing plate frame to drive the backing plate frame to move in a front-rear direction.

[0011] The present invention has at least the following beneficial effects: the tray mechanism comprises a tray frame and a support plate frame, the tray frame is connected to the flexible transmission member, the two support plates are arranged on the tray frame and can be close to or away from each other, so that it is convenient for the robot to place the casting mold on the tray mechanism moved to the loading station, and then under the action of the driving mechanism, the two support plate frames are close to each other to clamp the casting mold, which is beneficial to ensure the stability of the casting mold when the conveying mechanism conveys the casting module to the unloading station, and can simultaneously conduct heat and convect heat to the casting mold during the conveying process, thereby improving the cooling effect; when the tray mechanism moves to the unloading station, the molten steel in the casting mold has been cooled to a solid state. At this time, the two support plate frames are away from each other to loosen the casting mold, which is convenient for the robot to transfer the casting mold, thereby improving the efficiency of the stainless steel casting process; a plurality of tray mechanisms are arranged at intervals along the length direction of the flexible transmission member, so that a plurality of tray mechanisms can carry the casting mold to the unloading station, thereby improving the casting mold processing capacity of the casting mold high-efficiency cooling device.

[0012] As a further improvement of the above technical solution, the pallet mechanism also includes a stop wheel, the stop wheel is provided on the left side and / or right side of the support plate frame, the stop wheel is rotatably connected to the support plate frame, and the axis of the stop wheel extends in the left-right direction; the loading station and the unloading station are both provided with the driving mechanism, the driving mechanism includes a transmission shaft, a rotating plate and a rotation driver, the transmission shaft is connected to the rotating plate, two transmission shafts are provided and are both rotatably connected to the conveying mechanism, the axis of the transmission shaft extends in the left-right direction, the two transmission shafts are arranged front and back at intervals, the rotating plate corresponds one-to-one to the stop wheel, and the rotation driver is transmission-connected to the transmission shaft to drive the rotating plate to rotate and abut against the stop wheel.

[0013] The two support plates on the pallet mechanism are both provided with stop wheels, and a driving mechanism is respectively provided at the loading station and the unloading station, the driving mechanism comprising a transmission shaft, a rotating plate and a rotating driver, the transmission shaft is connected to the rotating plate, and there are two transmission shafts, corresponding to the two support plates on the pallet mechanism. In addition, the number of rotating plates corresponds to the number of stop wheels, and the rotating driver is started to drive the two transmission shafts to rotate in opposite directions to drive the rotating plates on the two transmission shafts to rotate in opposite directions, so that the rotating plates can apply force to the stop wheels on the support plates, thereby achieving the two support plates to move closer to or further away from each other; such a design can not only achieve the two support plates to move closer to each other to clamp the casting mold shell, or move away from each other to release the clamping effect on the casting mold shell, but also, there is no need to set a driving mechanism on each pallet mechanism, which greatly reduces the manufacturing cost and can reduce the load of the conveying mechanism.

[0014] As a further improvement of the above technical solution, the rotary driver includes: a transmission gear, which is arranged on the transmission shaft; a rack, whose two ends extend in the front-to-back direction, the rack is connected to the conveying mechanism so that the rack can move forward and backward, and the rack is meshingly connected with the transmission gear; a linear drive member, which is connected to the rack to drive the rack to move forward and backward.

[0015] When the linear drive member drives the rack to move forward or backward, since the rack is meshed with the transmission gear on the transmission shaft, the transmission shaft rotates with the rotating plate, so that the rotating plate can apply force to the stop wheel; moreover, the design of gears and racks enables the rotary drive to have the characteristics of large load-bearing capacity, high transmission accuracy, stable operation and high reliability.

[0016] As a further improvement of the above technical solution, the linear drive member includes a motor and a driving gear, the driving gear is connected to the output shaft of the motor, and the driving gear is meshed with the rack. The linear drive member adopts a motor and a driving gear, the driving gear is arranged on the output shaft of the motor, and the driving gear is meshed with the rack. When the output shaft of the motor rotates, the driving gear can drive the rack to move in the front-rear direction during the rotation process, so that the transmission shaft can drive the rotating plate to rotate.

[0017] As a further improvement of the above technical solution, the rotary drive also includes a movable support wheel, which is rotatably connected to the conveying mechanism, and the axis of the movable support wheel extends in the left-right direction. A plurality of movable support wheels are arranged at intervals along the length direction of the rack, and the plurality of movable support wheels are all located below the rack and are all connected to the rack.

[0018] A plurality of movable supporting wheels are arranged along the front-to-back direction, and the movable supporting wheels are located below the rack. The movable supporting wheels can provide strong support for the rack, and when the rack moves along the front-to-back direction, the movable supporting wheels rotate due to the abutment with the rack. Such a design can greatly reduce the friction between the rack and the conveying mechanism, thereby reducing the resistance encountered by the linear drive during operation.

[0019] As a further improvement of the above technical solution, the casting mold shell efficient cooling device also includes a controller and a tension sensor; the rack includes a first rack portion and a second rack portion, the first rack portion and the second rack portion are arranged in a front-to-back arrangement, the transmission gear is meshed and connected to the first rack portion, the linear drive member is connected to the second rack portion, one end of the tension sensor is connected to the first rack portion, and the other end of the tension sensor is connected to the second rack portion, and the controller is electrically connected to the tension sensor and the linear drive member, respectively.

[0020] The rack includes a first rack portion and a second rack portion, a tension sensor is arranged between the first rack portion and the second rack portion, and the controller is electrically connected to the tension sensor and the linear drive member respectively, when the linear drive member drives the second rack portion to move linearly, the second rack portion applies force to the first rack portion through the tension sensor, thereby helping to realize that the two support plates are close to each other and clamp the casting mold shell, at this time, the tension sensor can collect the force between the first rack portion and the second rack portion in real time, when the two support plates clamp the casting mold shell, the first rack portion cannot further drive the support plates to continue to move closer due to the large resistance, at this time, the force data collected by the tension sensor reaches the maximum value, then the controller controls the linear drive member to stop the action after receiving the data from the tension sensor, to avoid the linear drive member being damaged due to excessive operation, and can intelligently judge whether the two support plates have clamped the casting mold shell, thereby improving the automation degree of the high-efficiency cooling device for the casting mold shell, and can increase the versatility of the high-efficiency cooling device for the casting mold shell to adapt to casting mold shells of different sizes.

[0021] As a further improvement of the above technical solution, both of the transmission shafts are provided with a first gear, and a transition gear set is provided between the two first gears, the transition gear set includes a second gear and a third gear, the second gear is respectively meshed and connected with one of the first gear and the third gear, the third gear is meshed and connected with the other first gear, and the transmission gear is provided on one of the transmission shafts.

[0022] The two transmission shafts are both provided with a first gear, and a transition gear set is provided between the two first gears, so that the two first gears rotate in opposite directions, thereby enabling the two rotating plates to rotate in opposite directions, so as to drive the two support plate frames to move closer to or away from each other; moreover, the transmission gear is provided on one of the transmission shafts, and when a linear drive member is used to drive a rack to move in the front-rear direction, the rack can drive the transmission gear to rotate with one of the transmission shafts, and the first gear and the transition gear set are provided between the two transmission shafts, so that the two transmission shafts can rotate at the same time; such a design can simplify the structure of the rotary drive and reduce the manufacturing cost, and can enable the two rotating plates to rotate synchronously in opposite directions, which is conducive to driving the two support plate frames to move simultaneously.

[0023] As a further improvement of the above technical solution, a sector is provided at the other end of the rotating plate, the central axis of the sector extends in the left-right direction, and the central axis of the sector is arranged close to the transmission shaft. The sector is provided at the other end of the rotating plate. With such a design, the rotating angle of the rotating plate is reduced while ensuring that the rotating plate can drive the two support plate frames to move, thereby effectively shortening the time for the rotating plate to drive the support plate frames to move, and improving the working efficiency of the casting mold shell.

[0024] As a further improvement of the above technical solution, the surface of the support plate frame facing the receiving groove and the surface of the tray frame facing the receiving groove are both provided with a fire-resistant layer. The provision of the fire-resistant layer enables the support plate frame and the tray frame to withstand the high temperature of the casting mold shell when they are in contact with the casting mold shell, and can achieve a good heat conduction effect to cool the casting mold shell.

[0025] As a further improvement of the above technical solution, the flexible transmission member is a chain. Compared with a belt, a chain has a larger bearing capacity, is not easily deformed, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments;

[0027] Figure 1 It is a schematic structural diagram of a casting mold shell high-efficiency cooling device provided by an embodiment of the present invention on an XZ plane;

[0028] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0029] Figure 3 yes Figure 1 A magnified schematic diagram of part B;

[0030] Figure 4 yes Figure 1 Sectional view of section AA;

[0031] Figure 5 yes Figure 1 Cross-sectional view of the middle BB section;

[0032] Figure 6 yes Figure 5 A magnified schematic diagram of part C;

[0033] Figure 7 yes Figure 5 Enlarged schematic diagram of part D in the figure.

[0034] The markings in the accompanying drawings are as follows: 110, chain; 120, frame; 130, driving motor; 140, driving shaft; 150, driving sprocket; 160, driven shaft; 170, driven sprocket; 200, driving mechanism; 210, rotating plate; 211, transmission shaft; 212, first gear; 213, second gear; 214, third gear; 220, transmission gear; 231, first rack portion; 232, second rack portion; 233, tension sensor; 240, motor; 241, driving gear; 250, movable supporting wheel; 300, tray mechanism; 310, support frame; 320, block; 330, blocking wheel; 340, tray frame; 400, casting mold shell; 500, receiving groove. DETAILED DESCRIPTION

[0035] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In the description of the present invention, if there are words such as "several", it means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there are descriptions of first, second, and third, they are only used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] It should be noted that in the attached drawings, the X direction is from the back side to the front side of the casting mold shell efficient cooling device; the Y direction is from the left side to the right side of the casting mold shell efficient cooling device; and the Z direction is from the bottom side to the top side of the casting mold shell efficient cooling device. Figure 1 The arrow in the figure indicates the conveying direction of the conveying mechanism.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] Reference Figures 1 to 7 , several embodiments of the high-efficiency cooling device for the casting mold shell of the present invention are given below.

[0041] like Figures 1 to 7 As shown, an embodiment of the present invention provides a casting mold shell efficient cooling device, comprising: a conveying mechanism, a tray mechanism 300 and a driving mechanism 200. The casting mold shell efficient cooling device can be applied to stainless steel casting process, and the casting mold shell 400 can contain molten steel.

[0042] Among them, the conveying mechanism includes a driving wheel, a transmission wheel and a flexible transmission member, and the flexible transmission member is wound between the driving wheel and the transmission wheel. In this embodiment, the conveying mechanism is a chain conveying mechanism, and the flexible transmission member is a chain 110. Correspondingly, the driving wheel is a driving sprocket 150, and the transmission wheel is a driven sprocket 170. The driving shaft 140 and the driven shaft 160 are arranged on the frame 120 through a bearing seat. Two driving sprockets 150 are provided on the driving shaft 140, and two driven sprockets 170 are provided on the driven shaft 160. Correspondingly, two parallel chains 110 are provided, which are respectively wound between the driving sprocket 150 and the driven sprocket 170. The driving motor 130 is connected to the driving shaft 140 in transmission, such as through a coupling, a belt transmission structure or a chain transmission structure.

[0043] In some other embodiments, the flexible transmission member may be a belt, and the driving wheel and the transmission wheel may be pulleys.

[0044] The conveying direction of the conveying mechanism is defined as the front-to-back direction, and the conveying mechanism is provided with a loading station and a unloading station, and the loading station and the unloading station are arranged in a front-to-back manner. In this embodiment, the loading station is located behind the unloading station.

[0045] A plurality of tray mechanisms 300 are arranged at intervals along the length direction of the flexible transmission member, so that a closed loop structure is formed, so that it is convenient for the robot to continuously place the casting mold shells 400 one by one on each tray mechanism 300. In this embodiment, 14 tray mechanisms 300 are arranged on the entire flexible transmission member. When the conveying mechanism is in operation, each tray mechanism 300 moves with the flexible transmission member and can cyclically move between the loading station and the unloading station.

[0046] The tray mechanism 300 includes a tray frame 340 and a support frame 310. The tray frame 340 is connected to a flexible transmission member. In this embodiment, the flexible transmission member is provided on the left and right sides of the tray frame 340. The flexible transmission member is connected to the lower surface of the tray frame 340 through a connecting block. The tray frame 340 is a square plate. Of course, the tray frame 340 can also be a plate of other shapes.

[0047] There are two support plate racks 310 which are opposite to each other in the front and back directions. Both support plate racks 310 are connected to the tray rack 340 by sliding. In this embodiment, the left side and right side of the tray rack 340 are protruded outward to form a connection part. Two clamping blocks 320 are provided on the lower surface of the support plate rack 310. The clamping blocks 320 are L-shaped. The two clamping blocks 320 are respectively located on the left and right sides of the support plate rack 310. A slide groove is formed between the clamping blocks 320 and the lower surface of the support plate rack 310. The connection part is located in the slide groove, so that the support plate rack 310 is connected to the tray rack 340 by clamping, and can move relative to the tray rack 340 under the action of external force. Compared with the rolling connection method, the sliding connection method is adopted between the support plate rack 310 and the tray rack 340 to increase the friction between the support plate rack 310 and the tray rack 340, which can ensure that the two support plate racks 310 can tightly clamp the casting mold shell 400.

[0048] The backrest frame 310 may be L-shaped when viewed from the left.

[0049] Furthermore, the two support plates 310 and the tray frame 340 jointly define a receiving groove 500 for receiving the casting mold shell 400. Specifically, the facing surfaces of the two support plates 310 and the upper surface of the tray frame 340 jointly form the receiving groove 500. The support plates 310 and the tray frame 340 are both made of metal material such as iron.

[0050] In some embodiments, the surface of the support plate frame 310 facing the receiving tank 500 and the surface of the tray frame 340 facing the receiving tank 500 are both provided with a refractory layer. The refractory layer can be made of refractory materials such as carbon bricks, silicon carbide, silicon bricks, etc., which can withstand the high temperature of the casting mold shell 400.

[0051] The driving mechanism 200 is connected to the back plate frame 310 to drive the back plate frame 310 to move in the front-rear direction.

[0052] In some embodiments, the driving mechanism 200 is an electric push rod or a telescopic cylinder, and one electric push rod can be provided for each support plate frame 310, the cylinder portion of the electric push rod is provided on the tray frame 340, and the movable rod of the electric push rod is connected to the support plate frame 310. Of course, the two ends of the electric push rod can also be connected to the two support plate frames 310 respectively, and when one electric push rod is in operation, the two support plate frames 310 can be driven to move closer to each other or away from each other.

[0053] In addition, in order to prevent the power cord of the electric push rod from getting tangled or moving too far, two electric contacts are provided at the power supply of the electric push rod, and correspondingly, two annular guide rails consistent with the flexible transmission member are provided. The two electric contacts correspond to the two annular guide rails one by one, and the electric contacts are connected to the annular guide rails. The electric contacts can move along the annular guide rails, and electric contact pieces are respectively provided at the positions corresponding to the loading station and the unloading station of the annular guide rails. When the electric contacts are in contact with the electric contact pieces, the electric push rod is energized; after the electric contacts are separated from the electric contact pieces, the electric push rod is de-energized.

[0054] In some embodiments, the driving mechanism 200 may be two air grippers that can approach each other and a translation mechanism. The two air grippers are connected by a finger cylinder and can approach or move away from each other. The translation mechanism may be a telescopic cylinder that can drive the two air grippers to move in the up-down direction or the left-right direction, so as to make the two air grippers approach the two support plate racks 310. When the two air grippers approach each other, the two support plate racks 310 are driven to approach each other, so that the two support plate racks 310 clamp the casting mold shell 400 located in the receiving groove 500; when the two air grippers move away from each other, the two support plate racks 310 are driven to move away from each other, so as to release the casting mold shell 400.

[0055] In some embodiments, the tray mechanism 300 further includes a stopper wheel 330, and the stopper wheel 330 is provided on both the left and right sides of the support plate frame 310, and the stopper wheels 330 located on the left and right sides of the support plate frame 310 are arranged symmetrically. The stopper wheel 330 is rotatably connected to the support plate frame 310, and specifically, the rotating shaft of the stopper wheel 330 is installed on the support plate frame 310 through a bearing seat, and the axis of the stopper wheel 330 extends in the left-right direction. Of course, it is not excluded that the stopper wheel 330 is arranged on the left or right side of the support plate frame 310.

[0056] Moreover, both the loading station and the unloading station are provided with a driving mechanism 200, and the driving mechanism 200 includes a transmission shaft 211, a rotating plate 210 and a rotary driver.

[0057] The transmission shaft 211 is fixedly connected to the rotating plate 210, and the rotating plate 210 can rotate around the central axis of the transmission shaft 211. Two transmission shafts 211 are provided, and the two transmission shafts 211 are arranged in a front-to-back manner, so that the two transmission shafts 211 correspond to the two support plate frames 310 on the tray mechanism 300. The two transmission shafts 211 are rotatably connected to the conveying mechanism through the bearing seat, and the axis of the transmission shaft 211 extends in the left-right direction.

[0058] The number of rotating plates 210 corresponds to the number of blocking wheels 330. In this embodiment, since each support plate frame 310 is provided with two blocking wheels 330, each transmission shaft 211 is provided with two rotating plates 210. The two rotating plates 210 on the same transmission shaft 211 are arranged to be spaced apart from each other, and the two rotating plates 210 on the same side of the tray mechanism 300 are arranged to be opposite to each other front and back. In addition, in order to avoid interference caused by the two rotating plates 210 on the same side of the tray mechanism 300 rotating at the same time, the two rotating plates 210 are arranged to be staggered from left to right, such as Figure 6 and Figure 7 shown.

[0059] In this embodiment, a sector is provided at the other end of the rotating plate 210, and the sector is integrally formed with the rotating plate 210. The central axis of the sector extends in the left-right direction, and the central axis of the sector is arranged close to the transmission shaft 211. Figure 2 and Figure 3 In some other embodiments, the rotating plate 210 may be a rectangular parallelepiped plate.

[0060] The rotary driver is connected to the transmission shaft 211 in transmission connection to drive the transmission shaft 211 to drive the rotating plate 210 to rotate, thereby driving the rotating plate 210 to rotate and abut against the blocking wheel 330 and exert a force. The rotating plate 210 corresponds to the blocking wheel 330 one by one. In this embodiment, a blocking wheel 330 is provided on the left and right sides of each plate support frame 310, and one tray mechanism 300 is provided with two plate support frames 310. Therefore, two rotating plates 210 are provided on the left and right sides of the loading station, and the rotating plates 210 can abut against the blocking wheel 330. The following description will be based on the example that each driving mechanism 200 is provided with four rotating plates 210.

[0061] like Figure 2As shown, when the tray mechanism 300 moves to the loading station, the conveying mechanism stops so that the robot can automatically place the casting mold shell 400 in the receiving groove 500 on the tray mechanism 300; then, the rotary drive is activated to drive the transmission shaft 211 to rotate the rotating plate 210 to a certain angle. The two rotating plates 210 located on the rear side of the tray mechanism 300 rotate synchronously clockwise due to the rotation of the transmission shaft 211, and the two rotating plates 210 located on the front side of the tray mechanism 300 rotate synchronously counterclockwise due to the rotation of the other transmission shaft 211. In the process of the two transmission shafts 211 rotating in opposite directions, the two rotating plates 210 on one of the transmission shafts 211 are respectively connected to and force applied to the two stop wheels 330 on one of the support plate frames 310, and the two rotating plates 210 on the other transmission shaft 211 are respectively connected to and force applied to the two stop wheels 330 on the other support plate frames 310, thereby achieving the two support plate frames 310 approaching each other and clamping the casting mold shell 400 in the accommodating groove 500, which helps to ensure the stability of the casting mold shell 400 during transportation.

[0062] Then, the conveying mechanism operates, so that the tray mechanism 300 carries the casting mold shell 400 and moves forward until it moves to the unloading station. During this movement, air flows through the casting mold shell 400, and the two support plates 310 clamp the casting mold shell 400, so that heat conduction and heat convection can be performed on the casting mold shell 400 at the same time, improving the cooling effect to ensure that the molten steel is cooled to a solid state when the casting mold shell 400 reaches the unloading station.

[0063] like Figure 3 As shown, when the tray mechanism 300 moves to the unloading station under the action of the conveying mechanism, the conveying mechanism stops. At this time, the rotary driver works, and the driving transmission shaft 211 drives the rotating plate 210 to rotate a certain angle. The two rotating plates 210 located on the rear side of the tray mechanism 300 rotate counterclockwise at the same time due to the rotation of the transmission shaft 211, and the two rotating plates 210 located on the front side of the tray mechanism 300 rotate clockwise at the same time due to the rotation of the other transmission shaft 211. In the process of the two transmission shafts 211 rotating in opposite directions, the two rotating plates 210 on one of the transmission shafts 211 respectively contact and apply force to the two stop wheels 330 on one of the support plate frames 310, and the two rotating plates 210 on the other transmission shaft 211 respectively contact and apply force to the two stop wheels 330 on the other support plate frames 310, thereby realizing that the two support plate frames 310 move away from each other and release the clamping effect of the support plate frames 310 on the casting mold shell 400, so that the robot can automatically clamp the casting mold shell 400 and transfer it away, which is beneficial to improving the efficiency of the stainless steel casting process.

[0064] In some embodiments, the rotary driver may be a rotary cylinder, and the rotary cylinder corresponds to the transmission shaft 211 one by one. The rotary table of the rotary cylinder is connected to the transmission shaft 211 to drive the transmission shaft 211 to rotate.

[0065] In some embodiments, the rotation driver is a motor, and the motor corresponds to the transmission shaft 211 one by one. The motor is connected to the transmission shaft 211 through a coupling, a belt drive structure or a chain drive mechanism to drive the transmission shaft 211 to rotate.

[0066] In some embodiments, the rotary drive includes a transmission gear 220, a rack, and a linear drive.

[0067] The transmission gear 220 is provided at one end of the transmission shaft 211 by a key connection, and the transmission gear 220 can rotate together with the transmission shaft 211. In some embodiments, each transmission shaft 211 is provided with a transmission gear 220.

[0068] In this embodiment, if Figure 6 As shown, the two transmission shafts 211 are each provided with a first gear 212, and a transition gear set is provided between the two first gears 212, the transition gear set includes a second gear 213 and a third gear 214, the second gear 213 is meshed and connected with one of the first gears 212 and the third gear 214 respectively, and the third gear 214 is meshed and connected with the other first gear 212. Due to the provision of the transition gear set, the rotation directions of the two transmission shafts 211 are opposite. The transmission gear 220 is provided on one of the transmission shafts 211.

[0069] Both ends of the rack extend in the front-to-back direction, and the rack is connected to the conveying mechanism so that the rack can move forward and backward. In this embodiment, the conveying mechanism is provided with a movable supporting wheel 250, and the movable supporting wheel 250 can be an H-shaped groove wheel, which can limit the left and right positions of the rack. The rotating shaft of the movable supporting wheel 250 is rotatably connected to the conveying mechanism through a bearing seat, and the axis of the movable supporting wheel 250 extends in the left-right direction. A plurality of movable supporting wheels 250 are arranged at intervals along the length direction of the rack. The plurality of movable supporting wheels 250 are all located below the rack and are all connected to the rack. The movable supporting wheel 250 can provide a strong support for the rack. When the rack moves in the front-to-back direction, the movable supporting wheel 250 rotates due to the contact with the rack. Such a design can greatly reduce the friction between the rack and the conveying mechanism.

[0070] In some other embodiments, the rack is installed on the conveying mechanism through a slider and rail structure.

[0071] Moreover, the rack is meshed with the transmission gear 220, and the linear drive is connected to the rack to drive the rack to move forward and backward. In the process of the linear drive driving the rack to move in the forward and backward direction, the transmission gear 220 drives the transmission shaft 211 to rotate, and then the transmission shaft 211 drives the rotating plate 210 to rotate. If each transmission shaft 211 is provided with a transmission gear 220, two racks and two linear drive members are provided. If a transition gear set is provided between two transmission shafts 211, only one rack and one linear drive member are required.

[0072] In some embodiments, the linear drive member is a telescopic cylinder or an electric pneumatic rod, and the movable rod of the telescopic cylinder or the electric pneumatic rod is used to drive the rack to move.

[0073] In some embodiments, the linear drive member includes a motor 240 and a driving gear 241. The motor 240 is a forward and reverse motor, and can be a stepping motor, and the motor 240 is fixed to the conveying mechanism by bolts. The driving gear 241 is connected to the output shaft of the motor 240 by a key connection, and the driving gear 241 is meshed with the rack. When the motor 240 is running, the rack is driven to move in the front-rear direction by the driving gear 241.

[0074] In some embodiments, the casting mold shell efficient cooling device further includes a controller and a tension sensor 233 .

[0075] like Figure 2 , Figure 3 and Figure 7 As shown, the rack includes a first rack portion 231 and a second rack portion 232, and the first rack portion 231 and the second rack portion 232 are arranged in a front-to-back manner. The transmission gear 220 is meshed and connected with the first rack portion 231, the linear drive member is connected with the second rack portion 232, one end of the tension sensor 233 is connected to the first rack portion 231, and the other end of the tension sensor 233 is connected to the second rack portion 232.

[0076] Moreover, the controller is electrically connected to the tension sensor 233 and the linear drive member respectively, and the controller can control the linear drive member to stop according to the force data collected by the tension sensor 233.

[0077] For the driving mechanism 200 located at the loading station, when the linear driving member drives the second rack portion 232 to move linearly, the second rack portion 232 applies a thrust to the first rack portion 231 through the tension sensor 233, so that the first rack portion 231 moves linearly and drives the transmission gear 220 to rotate, thereby helping to achieve the two support plate frames 310 approaching each other and clamping the casting mold shell 400.

[0078] At this time, the tension sensor 233 can collect the force between the first rack portion 231 and the second rack portion 232 in real time. After the two support plate frames 310 clamp the casting mold shell 400, the two support plate frames 310 cannot move closer. Therefore, the first rack portion 231 cannot continue to move due to greater resistance. At this moment, the force data collected by the tension sensor 233 reaches the maximum value. After receiving the force data from the tension sensor 233, the controller generates a control instruction, and the control instruction is transmitted to the linear drive component to control the linear drive component to stop moving, so as to adapt to casting mold shells 400 of different sizes, while also preventing the linear drive component from being damaged due to excessive operation.

[0079] By adopting the above-mentioned ingenious design, it is possible to intelligently determine whether the two support plates 310 have clamped the casting mold shell 400, thereby improving the degree of automation of the casting mold shell efficient cooling device. Moreover, when the tray mechanism 300 carries casting mold shells 400 of different sizes, the tension sensor 233 cooperates with the first rack portion 231 and the second rack portion 232 to determine whether the two support plates 310 have clamped the casting mold shell 400.

[0080] For the driving mechanism 200 located at the unloading station, when the linear driving member drives the second rack portion 232 to move linearly, the second rack portion 232 applies a pulling force to the first rack portion 231 through the tension sensor 233, so that the first rack portion 231 moves linearly and drives the transmission gear 220 to rotate, thereby helping to achieve the two support plate frames 310 moving away from each other and releasing the clamping effect on the casting mold shell 400.

[0081] The friction force between the support plate frame 310 and the pallet frame 340 gradually decreases from the middle position of the pallet frame 340 to the front and rear sides of the pallet frame 340. For example, when the two support plate frames 310 are far away from each other, the friction force between the support plate frame 310 and the pallet frame 340 is the smallest, and the current position of the support plate frame 310 relative to the pallet frame 340 is defined as the initial position; when the two support plate frames 310 leave the initial position, the two support plate frames 310 approach the casting mold shell 400 until the two support plate frames 310 clamp the casting mold shell 400; when the casting mold shell 400 exerts a flipping tendency on the support plate frames 310, the support plate frames 310 will self-lock with the pallet frame 340 to ensure that the support plate frames 310 will not move away.

[0082] The maximum distance between the two support plates 310 is detected by the displacement of the rack, and the maximum distance is fixed each time. For example, the position of the rack can be detected by setting a photoelectric switch, a limit switch, etc. After the two support plates 310 are far away from each other, the photoelectric switch generates a detection signal to the rack, and the controller controls the linear drive member to stop running after receiving the detection signal.

[0083] Of course, in some other embodiments, when a tension sensor 233 is provided between the first rack portion 231 and the second rack portion 232, when the force data collected by the tension sensor 233 reaches the minimum value, it can be determined that the two support plates 310 are far away from each other and do not need to be moved further. At this time, the controller generates a control command based on the force data of the tension sensor 233 to control the linear drive component to stop running.

[0084] In some other embodiments, a rotary encoder is provided on the transmission shaft 211 or the output shaft of the motor 240, and the rotary encoder is used to collect the rotation angle data of the transmission shaft 211 or the output shaft of the motor 240, so as to judge whether the two support plates 310 are moved into place and clamp the casting mold shell 400. However, when the tray mechanism 300 carries casting mold shells 400 of different sizes, it is necessary to set the reference data of the rotation angle.

[0085] The controller can be a PLC controller, a programmable single chip microcomputer or other control device that can realize the above-mentioned simple control function.

[0086] It can be understood that the high-efficiency cooling device for the casting mold shell can be used, but is not limited to, in the stainless steel casting process.

[0087] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A casting mold shell efficient cooling device, characterized in that: include: A conveying mechanism, comprising a driving wheel, a transmission wheel and a flexible transmission member, wherein the flexible transmission member is arranged between the driving wheel and the transmission wheel, wherein the conveying direction of the conveying mechanism is defined as a front-to-back direction, wherein the conveying mechanism is provided with a loading station and a unloading station, wherein the loading station and the unloading station are arranged in a front-to-back manner; and wherein the flexible transmission member is a chain (110); A tray mechanism (300) is provided with a plurality of tray mechanisms at intervals along the length direction of the flexible transmission member, the tray mechanism (300) comprises a tray frame (340) and a support frame (310), the tray frame (340) is connected to the flexible transmission member, two support frames (310) are provided and are opposed to each other in the front and rear direction, the two support frames (310) are both slidably connected to the tray frame (340), and the two support frames (310) and the tray frame (340) jointly define a receiving groove (500) for receiving a casting mold shell (400); A driving mechanism (200) connected to the backing plate frame (310) to drive the backing plate frame (310) to move in a front-rear direction; The tray mechanism (300) further comprises a stopper wheel (330), the stopper wheel (330) being provided on the left side and / or the right side of the support plate frame (310), the stopper wheel (330) being rotatably connected to the support plate frame (310), and the axis of the stopper wheel (330) extending in the left-right direction; the loading station and the unloading station are both provided with the drive mechanism (200), the drive mechanism (200) comprising a transmission shaft (211), a rotating plate (210) and a rotary driver, the transmission shaft ( The transmission shaft (211) is connected to the rotating plate (210), two transmission shafts (211) are provided and are both rotatably connected to the conveying mechanism, the axis of the transmission shaft (211) extends in the left-right direction, the two transmission shafts (211) are arranged in a front-to-back spaced relationship, the rotating plate (210) corresponds to the blocking wheel (330) one by one, and the rotary driver is in transmission connection with the transmission shaft (211) to drive the rotating plate (210) to rotate and abut against the blocking wheel (330); The two transmission shafts (211) are each provided with a first gear (212), a transition gear set is provided between the two first gears (212), the transition gear set comprises a second gear (213) and a third gear (214), the second gear (213) is meshedly connected with one of the first gears (212) and the third gear (214), and the third gear (214) is meshedly connected with the other first gear (212); When the tray mechanism (300) moves to the loading station, the conveying mechanism stops so as to automatically place the casting mold shell (400) in the receiving groove (500) on the tray mechanism (300); then, the rotary driver drives the transmission shaft (211) to rotate the rotating plate (210) by a certain angle; during the process of the two transmission shafts (211) rotating in opposite directions, the rotating plate (210) on one of the transmission shafts (211) contacts and applies force to the blocking wheel (330) on one of the support plate frames (310), and the rotating plate (210) on the other transmission shaft (211) contacts and applies force to the blocking wheel (330) on the other support plate frame (310), thereby achieving the two support plate frames (310) approaching each other and clamping the casting mold shell (400) in the receiving groove (500); When the tray mechanism (300) moves to the unloading station, the conveying mechanism stops, and the rotary driver drives the transmission shaft (211) to drive the rotating plate (210) to rotate a certain angle; when the two transmission shafts (211) rotate in opposite directions, the rotating plate (210) on one of the transmission shafts (211) contacts and applies a force to the blocking wheel (330) on one of the support plate frames (310), and the rotating plate (210) on the other transmission shaft (211) contacts and applies a force to the blocking wheel (330) on the other support plate frame (310), thereby achieving the two support plate frames (310) moving away from each other and releasing the clamping effect of the support plate frames (310) on the casting mold shell (400).

2. The high-efficiency cooling device for casting mold shell according to claim 1, characterized in that: The rotary drive comprises: A transmission gear (220), which is disposed on the transmission shaft (211); a rack, both ends of which extend in the front-rear direction, the rack being connected to the conveying mechanism so that the rack can move forward and backward, and the rack being meshingly connected to the transmission gear (220); A linear drive member is connected to the rack to drive the rack to move forward and backward.

3. The high-efficiency cooling device for casting mold shell according to claim 2, characterized in that: The linear drive member comprises a motor (240) and a driving gear (241); the driving gear (241) is connected to an output shaft of the motor (240); and the driving gear (241) is meshingly connected to the rack.

4. The high-efficiency cooling device for casting mold shell according to claim 2, characterized in that: The rotary drive further comprises a movable supporting wheel (250), wherein the movable supporting wheel (250) is rotatably connected to the conveying mechanism, wherein the axis of the movable supporting wheel (250) extends in the left-right direction, and a plurality of the movable supporting wheels (250) are arranged at intervals along the length direction of the rack, and the plurality of movable supporting wheels (250) are all located below the rack and are all connected to the rack.

5. The high-efficiency cooling device for casting mold shell according to any one of claims 2 to 4, characterized in that: It also includes a controller and a tension sensor (233); the rack includes a first rack portion (231) and a second rack portion (232); the first rack portion (231) and the second rack portion (232) are arranged in a front-to-rear manner; the transmission gear (220) is meshedly connected with the first rack portion (231); the linear drive member is connected with the second rack portion (232); one end of the tension sensor (233) is connected with the first rack portion (231); the other end of the tension sensor (233) is connected with the second rack portion (232); and the controller is electrically connected to the tension sensor (233) and the linear drive member, respectively.

6. The high-efficiency cooling device for casting mold shell according to claim 5, characterized in that: The transmission gear (220) is arranged on one of the transmission shafts (211).

7. The high-efficiency cooling device for casting mold shell according to claim 1, characterized in that: The other end of the rotating plate (210) is provided with a sector-shaped portion, the central axis of the sector-shaped portion extends in the left-right direction, and the central axis of the sector-shaped portion is arranged close to the transmission shaft (211).

8. The casting mold shell efficient cooling device according to claim 1, characterized in that: A surface of the support plate frame (310) facing the receiving groove (500) and a surface of the tray frame (340) facing the receiving groove (500) are both provided with a fire-resistant layer.

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