Automatic pouring and conveying device for metallurgical standard sample production

Abstract

The invention relates to the technical field of pouring and conveying, in particular to an automatic pouring and conveying device for metallurgical standard sample production. Comprising an intermittent transmission mechanism and an eight-station rotating disc assembly which are arranged on a bottom plate, eight shifting grooves are formed in the bottom of a transmission wheel, a shifting rod is driven by a transmission air cylinder to push the shifting grooves to achieve 45-degree indexing, a positioning pin locks a positioning hole to ensure the station precision, eight mold grooves are formed in the circumferential direction of a rotating disc, and a cam disc is statically arranged and a limiting groove comprises a large-radius arc groove section and a small-radius arc groove section. The small-radius arc groove section corresponds to a 90-degree central angle, and the clamping jaw assembly controls clamping through movement of the rotating wheel in the cam groove. The input track, the output track and the pouring station are adjacent to each other by 45 degrees, the three procedures of mold input, metal pouring and casting ejection are synchronously completed in the static period of the rotary table, the production efficiency is improved, and full-automatic circulating conveying production is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pouring and conveying, in particular to an automatic pouring and conveying device for producing metallurgical standard samples. Background Art

[0002] The automatic pouring and conveying device used in the production of metallurgical standard samples is an automated device that integrates molten metal pouring, mold conveying, and casting transfer. Its core function is to carry multiple pouring molds through a conveyor system, sequentially completing processes such as mold positioning, pouring, cooling, and casting removal to meet the needs of continuous production of metallurgical standard samples. This device must balance adaptability to high-temperature environments, heavy-duty mold stability, and multi-station collaborative precision, making it a key piece of equipment for improving the efficiency and consistency of standard sample production.

[0003] In the production of metallurgical standard samples, casting molds typically employ a semi-open structure with an open top for forming cylindrical metal ingots. Due to the varying specifications of different standard samples, molds with varying cavity inner diameters must be used within the same production batch, resulting in significant variations in the solidification time of the molten metal after pouring.

[0004] Existing traditional conveying systems mostly utilize a linear conveyor structure, requiring molds to sequentially pass through independent stations for pouring, cooling, and removal. This layout results in a large equipment footprint and low production efficiency. Furthermore, the open structure of the linear conveyor exposes hot molds, causing elevated workshop temperatures and a deteriorating operating environment. Some improved systems utilize a rotary conveyor system, with a gear-driven turntable for mold circulation. However, traditional gear transmission systems are limited by fixed speed ratios, requiring the turntable to rotate at a constant angular velocity. When producing standard samples of varying specifications, small molds require only 60 seconds to solidify, while large molds require over 120 seconds. The rigid timing of the gear transmission forces all molds to remain in a uniform, maximum solidification time, resulting in inefficient waiting times of up to 60 seconds per cycle for small molds and insufficient equipment utilization. Furthermore, sudden stops to adjust the timing can cause gear meshing shock, accelerating wear on the transmission system and reducing service life.

[0005] Therefore, the present application provides an automatic pouring and conveying device for the production of metallurgical standard samples to solve the problems raised in the above background technology. Summary of the Invention

[0006] The present invention provides an automatic pouring and conveying device for the production of metallurgical standard samples, which solves the problems of cumbersome operation of linear conveyor belts, low production efficiency, easy wear of gear turntable systems, and short service life in the prior art.

[0007] To solve the above technical problems, the present invention provides an automatic pouring and conveying device for the production of metallurgical standard samples, comprising a base plate, a transmission assembly disposed at the bottom of the base plate, a turntable assembly disposed at the top of the base plate, and a plurality of clamping jaw assemblies disposed at intervals circumferentially on the turntable assembly, the clamping jaw assemblies being used to clamp or release the mold slot; The transmission assembly includes a U-shaped support frame, which is arranged on the bottom surface of the base plate and is arranged horizontally. A transmission wheel is arranged in the groove body of the U-shaped support frame. The bottom edge of the transmission wheel is evenly provided with a plurality of shifting grooves along the circumference. A shifting rod is correspondingly provided in the shifting groove. The shifting rod shifts the shifting groove to make the transmission wheel rotate along a fixed angle. The turntable assembly includes a transmission wheel, a turntable connecting plate is arranged on the top of the transmission wheel, the top of the turntable connecting plate is fixedly connected to the turntable, a plurality of mold grooves are evenly distributed along the circumference on the outer edge of the top of the turntable, a cam plate is arranged above the turntable and concentric with the turntable, and a limit groove is provided on the top surface of the cam plate. The limit groove is composed of a large radius arc groove and a small radius arc groove smoothly connected at both ends, and the central angle corresponding to the small radius arc groove is 90°.

[0008] A further improvement of the technical solution of the present invention is that the clamping jaw assembly includes several mounting blocks, which are fixedly arranged on the top surface of the turntable, and each mounting block is aligned with its corresponding mold groove along the radial direction of the turntable. A pull rod is arranged in the mounting block along the radial direction of the turntable, and a rotating wheel embedded in the limiting groove is provided at the inner end of the pull rod. The outer end of the pull rod is connected to a vertical shaft rod, and two clamping jaws arranged at an obtuse angle are pivotally connected on the shaft rod. A strip hole is provided on the clamping jaw, and the shaft rod passes through the strip hole. The rotating wheel and the pull rod are constrained to move only along the radial direction of the turntable. When the rotating wheel moves in the limiting groove, the rotating wheel drives the pull rod to move radially, and the pull rod drives the shaft rod to move and drives the clamping jaw to swing around its pivot point through the strip hole, thereby realizing the clamping or releasing action of the clamping jaw.

[0009] A further improvement of the technical solution of the present invention is that: a number of positioning holes are evenly arranged along the circumference of the side wall of the transmission wheel, and each positioning hole is arranged corresponding to a groove below it; a positioning cylinder is provided on the outer wall of the U-shaped support frame, and a positioning pin is provided on the output shaft of the positioning cylinder. The positioning pin passes through the U-shaped support frame, and the positioning pin is retractably arranged so that it can be embedded in the positioning hole when extended to realize the positioning of the transmission wheel.

[0010] A further improvement of the technical solution of the present invention is that the shift groove has an approximately triangular profile, including a radial vertical driving surface for contacting the shift rod and transmitting driving force, and a guiding inclined surface intersecting with the radial vertical driving surface and with an included angle of not less than 60°.

[0011] A further improvement of the technical solution of the present invention is that: a rotating swing arm is coaxially arranged below the transmission wheel, a shift lever shaft is vertically arranged on the top surface of the rotating swing arm, the shift lever is hinged to the shift lever shaft through a pivot, and an elastic element is provided to keep the shift lever pressed toward the transmission wheel and embedded in the shift groove; the outer end of the radially extending arm of the rotating swing arm is hinged to the end of the piston rod of the transmission cylinder, and the cylinder body of the transmission cylinder is fixed; the reciprocating telescopic motion of the transmission cylinder drives the rotating swing arm to swing back and forth, thereby driving the shift lever to shift the shift groove sequentially.

[0012] A further improvement of the technical solution of the present invention is that the turntable, turntable connecting plate, transmission wheel and rotating swing arm are all coaxially arranged, and a vertical channel is opened along the common central axis; a fixed rod is connected to the vertical channel through a bearing, the bottom of the fixed rod is fixedly connected to the U-shaped support frame, and the top of the fixed rod is fixedly connected to the cam plate to keep the cam plate stationary.

[0013] A further improvement of the technical solution of the present invention is that each mold groove is provided with a notch along the radial direction of the turntable, the edge of the notch is rounded, and the outer end of the notch protrudes from the outer edge of the turntable by 2-5 mm.

[0014] A further improvement of the technical solution of the present invention is that the number of clamping jaw assemblies, the number of mold slots, the number of shifting slots and the number of positioning holes are all equal.

[0015] A further improvement of the technical solution of the present invention is that: a pouring station is arranged above the turntable, and a radially extending output track is arranged outside the next mold slot adjacent to the mold slot at the pouring station in the counterclockwise direction, and a radially extending input track is arranged outside the next mold slot adjacent to the output track mold slot in the counterclockwise direction; and when the mold slot rotates to the pouring station, its corresponding turntable is located in the large radius arc groove, and at the same time, the turntables of the mold slots corresponding to the output track and the input track are located in the small radius arc groove; a protective plate is arranged above the cam disc, and the protective plate covers the pull rod; an output cylinder is arranged on the protective plate at a position corresponding to the top of the output track, and the push block of the output cylinder is located above the clamp; an input cylinder is arranged outside the input track for pushing the mold to move along the input track; a mold inlet is opened on the side wall of the input track near its starting end.

[0016] A further improvement of the technical solution of the present invention is that: a cover shell covering the turntable assembly and the clamping claw assembly is provided on the bottom plate, a pouring gate is provided on the cover shell, the next mold slot clockwise from the mold slot corresponding to the input track is the pouring station, and the pouring gate corresponds to the square of the pouring station.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects: 1. The present invention provides an automatic pouring and conveying device for the production of metallurgical standard samples. This device achieves precise and controllable intermittent transmission through a ratchet-like structure between a shifting groove in a drive wheel and a shifting lever on a rotating swing arm. The radial vertical driving surface of the shifting groove and the guide inclined surface form a forced drive track. Combined with the reciprocating and retracting motion of the transmission cylinder, the turntable rotates only a fixed index angle each time, completely breaking through the tachometer limit of traditional uniform gear rotation. The dwell time at the workstation can be freely adjusted according to the solidification time corresponding to different mold groove inner diameters.

[0018] 2. This invention provides an automatic pouring and conveying device for the production of metallurgical standard samples. This device achieves gravity-adaptive clamping through a mechanical linkage design between a cam plate's limiting groove and the clamping jaw assembly. When the rotating wheel slides along the large-radius arc groove, it forces the pull rod to move radially inward. Through the leverage of the shaft and the strip-shaped hole, the two blunt-angled clamping jaws generate a centripetal clamping force, rigidly locking a 30kg-class heavy mold and overcoming the risk of centrifugal instability associated with traditional spring clamps during rotation.

[0019] 3. This invention provides an automatic pouring and conveying device for the production of metallurgical standard samples. This device uses a positioning cylinder to drive a positioning pin into the positioning hole of a drive wheel, achieving submillimeter position locking. After each groove indexing cycle of the drive wheel, the positioning pin immediately inserts into the corresponding positioning hole, creating a mechanical hard limit. This eliminates the cumulative error of traditional photoelectric sensors and ensures that the pouring gate and the center of the mold groove maintain a constant alignment accuracy of ±0.1mm.

[0020] 4. This invention provides an automatic pouring and conveying device for the production of metallurgical standard samples. This device achieves multi-process synchronization within a single cycle through the coordinated phase layout of input and output tracks and cam grooves. When the runners of the mold corresponding to the input and output tracks are in the release section of the small-radius arc groove, the angle of the clamping jaws increases, and the input cylinder pushes the empty mold into the mold groove. Simultaneously, the output cylinder above the output track pushes the cooled mold, ejecting the mold and casting together, shortening the process transition time.

[0021] 5. This invention provides an automatic pouring and conveying device for the production of metallurgical standard samples. This device utilizes a fixed rod and bearing structure that penetrates the turntable assembly to achieve separate dynamic and static support. The bottom of the fixed rod is anchored to a U-shaped support frame, and the top is fixed to a cam plate. Bearings within a vertical channel isolate the rotating and stationary components, ensuring that the limit groove trajectory maintains a constant spatial position even under high-temperature conditions.

[0022] 6. The present invention provides an automatic pouring and conveying device for the production of metallurgical standard samples. The device realizes the impact-free transfer of heavy-loaded molds through the radial notch extension design of the mold groove. The notch protrudes 3 mm from the edge of the turntable to form a transition guide surface, which is precisely docked with the input track and output track to form continuous support, thereby increasing the contact area of ​​the mold during the entry and exit process and eliminating the risk of jamming caused by traditional right-angle docking.

[0023] 7. The present invention provides an automatic pouring and conveying device for the production of metallurgical standard samples. This device, through the provision of a cover, completely encloses the entire pouring area, effectively blocking the splashing of high-temperature molten metal, protecting the operator's safety, and preventing external dust from contaminating the pouring process. Furthermore, a thermal insulation layer is provided within the cover to maintain a constant temperature in the pouring area, significantly reducing heat loss during the conveying process, ensuring uniform solidification of standard samples of different specifications, and increasing product qualification rates by over 15%. This design ensures both production safety and an optimized pouring process environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is an overall schematic diagram of an automatic pouring and conveying device for the production of metallurgical standard samples; Figure 2 for Figure 1 Schematic diagram of the structure without the cover; Figure 3 for Figure 2 A top view of Figure 4 for Figure 2 Schematic diagram of the structure without protection plate; Figure 5 for Figure 4 A top view of Figure 6 for Figure 4 Schematic diagram of the structure from another angle; Figure 7 It is a structural schematic diagram of the cam disc of the present invention; Figure 8 It is a structural schematic diagram of the clamping jaw assembly and the mold slot of the present invention; Figure 9 It is a structural schematic diagram of the transmission assembly and cam plate of the present invention; Figure 10 for Figure 9Schematic diagram of the structure without cam disc; Figure 11 for Figure 10 Schematic diagram of the structure without U-shaped support frame; Figure 12 It is a schematic structural diagram of the transmission wheel and the shift lever of the present invention; Figure 13 for Figure 12 Bottom view of .

[0026] Figure 1: Bottom plate; 2: Transmission assembly; 201: U-shaped support frame; 202: Transmission wheel; 203: Slide groove; 204: Slide lever; 205: Positioning hole; 206: Positioning cylinder; 207: Positioning pin; 208: Rotating swing arm; 209: Slide lever shaft; 210: Elastic element; 211: Transmission cylinder; 212: Vertical driving surface; 213: Guide slope; 3: Turntable assembly; 301: Turntable connecting plate; 302: Turntable; 303: Mold groove ; 304, cam plate; 305, limit groove; 306, large radius arc groove; 307, small radius arc groove; 308, vertical channel; 309, fixing rod; 310, notch; 4, clamping jaw assembly; 41, mounting block; 42, pull rod; 43, turntable; 44, shaft; 45, clamping jaw; 46, strip hole; 5, output track; 6, input track; 7, protection plate; 8, output cylinder; 9, input cylinder; 10, mold inlet; 11, cover; 12, pouring gate. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] The present invention will be further explained below with reference to specific embodiments.

[0031] like Figures 1-13 As shown, the embodiment provides an automatic pouring and conveying device for the production of metallurgical standard samples, comprising a base plate 1, a transmission assembly 2 is arranged at the bottom of the base plate 1, a turntable assembly 3 is arranged at the top of the base plate 1, and eight clamping claw assemblies 4 are arranged on the turntable assembly 3 at intervals in the circumferential direction; the transmission assembly 2 includes a U-shaped support frame 201 arranged on the bottom surface of the base plate 1, the U-shaped support frame 201 is arranged horizontally, a transmission wheel 202 is arranged in the groove body of the U-shaped support frame 201, and the bottom edge of the transmission wheel 202 is uniformly provided with eight shifting grooves 203 along the circumferential direction. A shift lever 204 is correspondingly provided in 203, and the shift lever 204 shifts the shift slot 203 to rotate the transmission wheel 202 at an angle of 45°; the shift slot 203 has an approximately triangular profile, including a radial vertical driving surface 212 for contacting the shift lever 204 and transmitting driving force, and a guide inclined surface 213 intersecting with the radial vertical driving surface 212 and having an included angle of not less than 60°. The radial vertical driving surface 212 of the shift slot 203 provides a rigid indexing driving force, and the guide inclined surface 213 enables the shift lever 204 to automatically slide off. A rotating swing arm 208 is coaxially arranged below the transmission wheel 202, and a shift lever shaft 209 is vertically arranged on the top surface of the rotating swing arm 208. The shift lever 204 is hinged to the shift lever shaft 209 by a pivot. The pivot hinge structure makes the shift lever 204 form a lever effect, and an elastic element 210 is provided to keep the shift lever 204 pressed against the transmission wheel 202 and embedded in the shift groove 203; the elastic element 210 provides constant contact pressure to eliminate transmission clearance. The elastic element 210 is preferably a spring clip. The outer end of the radially extending arm of the rotating swing arm 208 is hinged to the piston rod end of the transmission cylinder 211, and the cylinder body of the transmission cylinder 211 is fixedly arranged; the reciprocating telescopic motion of the transmission cylinder 211 drives the rotating swing arm 208 to swing back and forth, thereby driving the shift lever 204 to shift the shift groove 203 in sequence; through the cooperation of the eight-station shift groove 203 and the elastic shift lever 204, accurate 45° intermittent indexing transmission is achieved, providing a basis for variable beat casting.

[0032] like Figures 9-12As shown, in this embodiment, eight positioning holes 205 are evenly distributed along the circumference of the sidewall of the transmission wheel 202. Each positioning hole 205 corresponds to a shifting slot 203 below it. The vertical correspondence between the positioning holes 205 and the shifting slot 203 constitutes a position reference. A positioning cylinder 206 is provided on the outer wall of the U-shaped support frame 201. A positioning pin 207 is provided on the output shaft of the positioning cylinder 206. The positioning pin 207 extends through the U-shaped support frame 201 and is retractable. When extended, the positioning pin 207 engages the positioning hole 205 to position the transmission wheel 202. The positioning pin 207 forms a mechanical hard limit, replacing traditional sensor positioning. This positioning system ensures repeatable positioning accuracy of the eight stations through physical interlocking, eliminating casting alignment deviation.

[0033] like Figure 1-Figure 7 As shown, in this embodiment, the turntable assembly 3 includes a turntable connecting plate 301 fixedly connected to the top of the transmission wheel 202, the turntable connecting plate 301 passes through the bottom plate 1, and the top of the turntable connecting plate 301 is fixedly connected to the turntable 302. The outer edge of the top of the turntable 302 is evenly distributed with eight mold grooves 303 along the circumference, and the eight-eighth layout matches the 45° indexing angle; each mold groove 303 is radially opened with a notch 310 along the turntable 302, and the edge of the notch 310 is rounded. The rounded corner design reduces stress concentration, and the outer end of the notch 310 protrudes from the outer edge of the turntable 302 by 2-5mm; the notch 310 is extended to form a mold in and out transition guide surface; a cam plate 304 is arranged above the turntable 302 and concentric with the turntable 302, and a limit groove 305 is provided on the top surface of the cam plate 304. The limiting groove 305 is composed of a large radius arc groove 306 and a small radius arc groove 307 smoothly connected at both ends, and the central angle of the small radius arc groove 307 is 90°; the large radius arc groove 306 section allows the clamping jaws 45 to open freely, and the small radius arc groove 307 section forces the clamping jaws 45 to close; the turntable 302, the turntable connecting plate 301, the transmission wheel 202 and the rotating swing arm 208 are all coaxially arranged, and a vertical channel 308 is opened along the common central axis; the vertical channel 308 is connected to the fixed rod 309 through a bearing, the bottom of the fixed rod 309 is fixedly connected to the U-shaped support frame 201, and the top of the fixed rod 309 is fixedly connected to the cam plate 304, so that the cam plate 304 remains stationary; the bearing connection realizes the mechanical isolation of the rotating parts and the stationary parts.

[0034] like Figures 1-8As shown, in this embodiment, the clamping jaw assembly 4 includes eight mounting blocks 41, which are fixedly arranged on the top surface of the turntable 302, and each mounting block 41 is aligned with its corresponding mold groove 303 along the radial direction of the turntable 302. The radial alignment ensures that the line of action of the clamping force passes through the center of the mold; a pull rod 42 is provided in the mounting block 41 along the radial direction of the turntable 302, and a rotating wheel 43 is provided at the inner end of the pull rod 42 and is embedded in the limiting groove 305. The rotating wheel 43 converts the trajectory of the cam disc 304 into linear motion; the outer end of the pull rod 42 is connected to the vertical shaft Rod 44, on which two jaws 45 arranged at an obtuse angle are pivotally connected, has a strip hole 46 formed in the jaws 45, through which the shaft 44 passes. The strip hole 46 converts linear displacement into rotational motion of the jaws 45. The rotating wheel 43 and the pull rod 42 are constrained to move only radially along the turntable 302. When the rotating wheel 43 moves within the limiting slot 305, it drives the pull rod 42 to move radially, thereby driving the shaft 44 to move and, through the strip hole 46, the jaws 45 to swing about their pivot point, thereby achieving the clamping or release action of the jaws 45. The number of jaw assemblies 4, the number of mold slots 303, the number of shifting slots 203, and the number of positioning holes 205 are all equal. The eight groups of jaws 45 are mechanically controlled to move synchronously via the trajectory of the cam plate 304, achieving centrifugal force self-compensating clamping.

[0035] like Figure 1-Figure 3As shown, in this embodiment, a pouring station is arranged above the turntable 302, and a radially extending output track 5 is correspondingly provided outside the next mold slot 303 adjacent to the mold slot 303 in the counterclockwise direction at the pouring station, and a radially extending input track 6 is correspondingly provided outside the next mold slot 303 adjacent to the mold slot 303 in the counterclockwise direction of the output track 5; and when the mold slot 303 rotates to the pouring station, its corresponding runner 43 is located in the large radius arc groove 306, and the clamp 45 is in a clamping state at this time for easy pouring, and at the same time, the runner 43 of the mold slot 303 corresponding to the output track 5 and the input track 6 is located in the small radius arc groove 307; at this time, the clamp 45 is in an expanded and released state to ensure mold input and output. A protective plate 7 is installed above the cam plate 304, covering the tie rod 42. This plate prevents hot metal splashing from damaging the moving parts. An output cylinder 8 is installed on the protective plate 7, corresponding to the position above the output track 5. Its push block is located above the clamping jaws 45. This push block pushes the mold away from the mold slot 303 and onto the output track 5. An input cylinder 9 is installed outside the input track 6, pushing the mold along the input track 6. A mold inlet 10 is defined on the sidewall of the input track 6 near its starting point. This inlet 10 extends outward from the slot 310 to form a continuous guide channel. A housing 11 encloses the turntable assembly 3 and the clamping jaw assembly 4. A pouring gate 12 is defined on the housing 11. The pouring station is located directly above the next mold slot 303 clockwise from the input track 6. The three processes of mold input, metal pouring, and casting output are completed simultaneously while the turntable 302 is stationary, maximizing the efficiency of the eight-station cycle.

[0036] The present invention also provides a use principle of an automatic pouring and conveying device for metallurgical standard sample production: The operator first pushes the preheated heavy mold into the input track 6 through the mold inlet 10 on the side of the input track 6. Then, the input cylinder 9 activates the mold, precisely pushing it along the input track 6 into the open mold slot 303 at the edge of the turntable 302. At this point, the turntable 302 is stationary. The transmission cylinder 211 drives the rotary swing arm 208 to swing, driving the shifting rod 204 to engage the vertical drive surface 212 of the shifting slot 203 of the transmission wheel 202, pushing the transmission wheel 202 to rotate precisely 45 degrees, so that the station carrying the new mold is directly below the pouring gate 12. Simultaneously, the positioning cylinder 206 immediately inserts the positioning pin 207 into the positioning hole 205 on the side wall of the transmission wheel 202, achieving mechanical locking. As the turntable 302 rotates, the wheel 43 of the jaw assembly 4 slides along the limiting groove 305 of the cam plate 304. When it enters the large-radius arc groove 306, the pull rod 42 is forced to move centripetally, and the two obtuse-angled jaws 45 are closed through the linkage of the shaft 44 and the strip hole 46, rigidly locking the mold. The jaws 45 automatically open when it enters the small-radius arc groove 307. After the turntable 302 is indexed into position, the mold groove 303 of the pouring station is located directly below the pouring spout 12 of the housing 11. The ladle is extended into the pouring spout 12 via a robotic arm (an existing product), and the molten metal is introduced into the mold groove 303. At this time, the jaws 45 of this station are in a clamping state, and the molten metal is poured into the mold through the pouring spout 12. During the static period after pouring is complete, three processes are performed simultaneously: the push block of the output cylinder 8 is positioned above the clamping jaws 45; this push block pushes the mold away from the mold slot 303 and onto the output track 5; the input cylinder 9 simultaneously pushes the new mold into the open clamping jaws 45 of the pouring station counterclockwise from the previous station; and simultaneously, the current pouring station pours molten steel. This cycle repeats eight times, completing a full rotation of the turntable 302 and enabling the continuous automated production of eight sets of metallurgical standard samples. Throughout this process, the protective plate 7 isolates metal splashes, and the cover 11 maintains a stable pouring temperature field.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic pouring and conveying device for the production of metallurgical standard samples, characterized in that: The invention comprises a base plate (1), a transmission assembly (2) is arranged at the bottom of the base plate (1), a turntable assembly (3) is arranged at the top of the base plate (1), and a plurality of clamping jaw assemblies (4) are arranged at intervals on the circumference of the turntable assembly (3), and the clamping jaw assemblies (4) are used to clamp or release the mold groove (303); The transmission assembly (2) comprises a U-shaped support frame (201), the U-shaped support frame (201) being arranged on the bottom surface of the base plate (1), the U-shaped support frame (201) being arranged transversely, a transmission wheel (202) being arranged in a groove body of the U-shaped support frame (201), a bottom edge of the transmission wheel (202) being uniformly provided with a plurality of shifting grooves (203) along a circumferential direction, a shifting rod (204) being correspondingly arranged in the shifting groove (203), and the shifting rod (204) shifting the shifting groove (203) causes the transmission wheel (202) to rotate along a fixed angle; The turntable assembly (3) comprises a transmission wheel (202), a turntable connecting plate (301) is arranged on the top of the transmission wheel (202), the turntable connecting plate (301) penetrates the bottom plate (1), the top of the turntable connecting plate (301) is fixedly connected to the turntable (302), a plurality of mold grooves (303) are evenly distributed along the circumference of the outer edge of the top of the turntable (302), a cam plate (304) is arranged above the turntable (302) and concentrically with the turntable (302), a limiting groove (305) is provided on the top surface of the cam plate (304), and the limiting groove (305) is composed of a large radius arc groove (306) and a small radius arc groove (307) smoothly connected end to end, and the central angle corresponding to the small radius arc groove (307) is 90 degrees.

2. The automatic pouring and conveying device for metallurgical standard sample production according to claim 1, characterized in that: The clamping jaw assembly (4) includes a plurality of mounting blocks (41), which are fixedly arranged on the top surface of the turntable (302), and each mounting block (41) is aligned with its corresponding mold groove (303) along the radial direction of the turntable (302). A pull rod (42) is arranged in the mounting block (41) along the radial direction of the turntable (302), and a rotating wheel (43) embedded in the limiting groove (305) is provided at the inner end of the pull rod (42). The outer end of the pull rod (42) is connected to a vertical shaft (44), and the shaft (44) is pivotally connected to two The clamping jaw (45) is arranged at an obtuse angle, and a strip hole (46) is provided on the clamping jaw (45). The shaft (44) passes through the strip hole (46). The rotating wheel (43) and the pull rod (42) are constrained to move only radially along the turntable (302). When the rotating wheel (43) moves in the limiting groove (305), the rotating wheel (43) drives the pull rod (42) to move radially, and the pull rod (42) drives the shaft (44) to move and drives the clamping jaw (45) to swing around its pivot point through the strip hole (46), thereby realizing the clamping or releasing action of the clamping jaw (45).

3. The automatic pouring and conveying device for metallurgical standard sample production according to claim 1, characterized in that: A plurality of positioning holes (205) are uniformly provided on the side wall of the transmission wheel (202) along the circumferential direction, and each positioning hole (205) is arranged corresponding to a shifting groove (203) below it; a positioning cylinder (206) is arranged on the outer side wall of the U-shaped support frame (201), and a positioning pin (207) is arranged on the output shaft of the positioning cylinder (206), and the positioning pin (207) passes through the U-shaped support frame (201). The positioning pin (207) is telescopically arranged so as to be embedded in the positioning hole (205) when extended to realize the positioning of the transmission wheel (202).

4. The automatic pouring and conveying device for metallurgical standard sample production according to claim 1, characterized in that: The shifting groove (203) has an approximately triangular profile and includes a radial vertical driving surface (212) for contacting the shifting rod (204) and transmitting driving force, and a guide inclined surface (213) intersecting the radial vertical driving surface (212) and having an included angle of not less than 60 degrees.

5. The automatic pouring and conveying device for metallurgical standard sample production according to claim 1, characterized in that: A rotating swing arm (208) is coaxially arranged below the transmission wheel (202), a shift lever shaft (209) is vertically arranged on the top surface of the rotating swing arm (208), the shift lever (204) is hinged to the shift lever shaft (209) through a pivot, and an elastic element (210) is provided to keep the shift lever (204) pressed against the transmission wheel (202) and embedded in the shift groove (203); the outer end of the radially extending arm of the rotating swing arm (208) is hinged to the piston rod end of the transmission cylinder (211), and the cylinder body of the transmission cylinder (211) is fixedly arranged; the reciprocating telescopic motion of the transmission cylinder (211) drives the rotating swing arm (208) to swing back and forth, thereby driving the shift lever (204) to sequentially shift the shift groove (203).

6. The automatic pouring and conveying device for metallurgical standard sample production according to claim 5, characterized in that: The turntable (302), the turntable connecting plate (301), the transmission wheel (202) and the rotating swing arm (208) are all coaxially arranged, and a vertical channel (308) is provided along the common central axis; a fixed rod (309) is connected to the vertical channel (308) via a bearing, the bottom of the fixed rod (309) is fixedly connected to the U-shaped support frame (201), and the top of the fixed rod (309) is fixedly connected to the cam plate (304), so that the cam plate (304) remains stationary.

7. The automatic pouring and conveying device for metallurgical standard sample production according to claim 1, characterized in that: Each mold groove (303) is provided with a notch (310) radially along the turntable (302), the edge of the notch (310) is rounded, and the outer end of the notch (310) protrudes from the outer edge of the turntable (302) by 2-5 mm.

8. The automatic pouring and conveying device for metallurgical standard sample production according to claim 3, characterized in that: The number of the clamping jaw assemblies (4), the number of the mold slots (303), the number of the shifting slots (203) and the number of the positioning holes (205) are all equal.

9. The automatic pouring and conveying device for metallurgical standard sample production according to claim 1, characterized in that: A pouring station is provided above the turntable (302), and a radially extending output track (5) is provided outside the mold slot (303) adjacent to the next mold slot (303) in the counterclockwise direction of the pouring station, and a radially extending input track (6) is provided outside the mold slot (303) adjacent to the next mold slot (303) in the counterclockwise direction of the output track (5); and when the mold slot (303) rotates to the pouring station, its corresponding runner (43) is located in the large radius arc slot (306), and at the same time, the output track (5) and the input track (6) are ) The rotating wheel (43) of the mold groove (303) corresponding to the input track (6) is located in the small radius arc groove (307); a protective plate (7) is set above the cam plate (304), and the protective plate (7) covers the pull rod (42); an output cylinder (8) is set on the protective plate (7) at a position corresponding to the position above the output track (5), and the push block of the output cylinder (8) is located above the clamping claw (45); an input cylinder (9) is set on the outside of the input track (6) for pushing the mold to move along the input track (6); a mold inlet (10) is opened on the side wall of the input track (6) near its starting end.

10. The automatic pouring and conveying device for metallurgical standard sample production according to claim 9, characterized in that: A cover (11) is provided on the bottom plate (1) to cover the turntable assembly (3) and the clamping jaw assembly (4). A pouring port (12) is provided on the cover (11). The mold slot (303) corresponding to the input track (6) and the next mold slot (303) in the clockwise direction is a pouring station, and the pouring port (12) is provided on the square of the pouring station.

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