A mold flipping and closing mechanism

Abstract

The utility model discloses a mould turns over and closes mould mechanism relates to foundry technology technical field, including turnover mechanism, the turnover mechanism includes the chassis, the chassis top both sides symmetry rotation setting has the rotating shaft, one the rotating shaft both ends symmetry is provided with the guide pulley, another the rotating shaft both ends symmetry is provided with transmission gear, be provided with turnover motor on the chassis, the output shaft of turnover motor with setting transmission gear rotating shaft is connected, the guide pulley and transmission gear cooperation transmission of same side are provided with turnover ring, transmission gear is engaged with turnover ring and connects, through with the upper die and lower die adaptability turnover, adapts different production procedure.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, specifically to a mold flipping and closing mechanism. Background Technology

[0002] Wear-resistant alloy balls are core wear components in mining crushers and cement ball mills. Based on composition, they can be divided into high-chromium cast iron balls, manganese-molybdenum alloy balls, etc. Their manufacturing processes mainly include forging, rolling, and casting. Among these, casting has become the mainstream process for large-size alloy balls (>Φ50mm) due to its low cost and strong material adaptability. Traditional casting processes employ an independent core-making model, which includes independent core making, sand core transfer, manual mold assembly, and casting. However, traditional casting technology still faces the following technical challenges in its implementation:

[0003] Low production efficiency: Traditional processes rely on core shooting machines to prepare sand cores one by one, and the sand cores need to be manually transferred from the core shooting station to the casting station. The transfer time for a single sand core is as long as 30-60 seconds, which limits the overall production cycle.

[0004] High breakage rate during transportation: During manual handling, sand cores may develop surface defects (such as sand loss and cracks) due to collisions, vibrations, etc., which may eventually lead to defects such as porosity and slag inclusions inside the alloy balls, resulting in a low product qualification rate.

[0005] Insufficient automation integration: Sand core preparation, casting, and cooling processes operate independently, and information transmission and collaborative operations between these processes rely on manual scheduling, making it difficult to achieve efficient and precise automated control. This not only increases labor costs but may also lead to information asymmetry in the production process, affecting overall production efficiency and product quality. Utility Model Content

[0006] The purpose of this invention is to provide a mold flipping and closing mechanism to solve the problems of low production efficiency and insufficient automation integration in traditional casting technology.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A mold flipping and closing mechanism includes a flipping mechanism, the flipping mechanism including a base frame, rotating shafts symmetrically arranged on both sides of the top of the base frame, guide wheels symmetrically arranged at both ends of one rotating shaft, and transmission gears symmetrically arranged at both ends of the other rotating shaft, a flipping motor is arranged on the base frame, and the output shaft of the flipping motor is connected to the rotating shaft with the transmission gears.

[0009] The guide wheel and the transmission gear on the same side are equipped with a flip ring for transmission, and the transmission gear is meshed with the flip ring.

[0010] As a further embodiment of this utility model, the guide wheel and the transmission gear on the same side are coplanar.

[0011] As a further embodiment of this utility model: a mating groove is provided on the outer side of the flipping ring, and limit rollers are correspondingly provided on both sides of the flipping ring;

[0012] The limiting roller on the same side extends into the mating groove of the flipping ring on the same side to restrict the flipping ring.

[0013] As a further embodiment of this invention, the two sets of flipping rings are coaxially arranged.

[0014] As a further embodiment of this utility model: two sets of connecting plates are connected between the two sets of flipping rings. The two sets of connecting plates are symmetrically arranged about the upper or lower mold. Multiple limiting rollers are provided on the inner side of each set of connecting plates, and the multiple limiting rollers are divided into upper and lower sets.

[0015] As a further embodiment of this utility model: the distance between the upper and lower sets of limiting rollers on the inner side of the connecting plate is equal to the thickness of the support platform of the upper or lower mold.

[0016] As a further embodiment of this utility model: the plane formed by the highest point of the lower limiting roller is flush with the conveying plane of the production line.

[0017] As a further embodiment of this utility model: a support base is provided on the base frame, a guide roller is provided on the support base, and a sand-collecting plate is rolled on the top of the guide roller.

[0018] As a further embodiment of this utility model: the sand-gathering plate is arranged in an arc shape, and the arc shape is oriented towards the flipping ring.

[0019] As a further embodiment of this utility model, a sand outlet is provided at one end of the sand-gathering plate.

[0020] The beneficial effects of this utility model are:

[0021] This invention uses a flipping motor to drive a transmission gear to rotate, which in turn drives two flipping rings on both sides to flip. These flipping rings then drive the upper and / or lower molds held inside to flip, adapting to various production processes. Furthermore, by setting two sets of flipping rings coaxially, with the axis of the flipping rings being coaxial with the center line of the upper and lower molds, the upper or lower mold can still connect to the first conveying station after flipping, ensuring smooth conveying.

[0022] This invention also includes an arc-shaped sand-collecting plate at the corresponding process position. When flipping, the waste sand of that process is collected in the sand-collecting plate, ensuring that the falling sand on both sides will converge at the bottom of the sand-collecting plate, thus preventing waste sand from splashing everywhere during the flipping process. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of the production line of this utility model. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the overall structure of the production line of this utility model. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the sand-shooting station structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the hole-reaming station structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the hole-expanding station structure in Embodiment 3 of this utility model;

[0029] Figure 6 This is a schematic diagram of the enlarged hole structure in Embodiment 3 of this utility model;

[0030] Figure 7 This is a schematic diagram of the mold closing station structure of this utility model;

[0031] Figure 8 This is a schematic diagram showing the positions of the mold closing station and the turning station of this utility model;

[0032] Figure 9 This is a schematic diagram of the steering station structure of this utility model. Figure 1 ;

[0033] Figure 10 This is a schematic diagram of the steering station structure of this utility model. Figure 2 ;

[0034] Figure 11 This is a schematic diagram of the turning station structure at the junction of the preheating station and the pouring station of this utility model;

[0035] Figure 12 This is a schematic diagram of the mold opening station structure of this utility model. Figure 1 ;

[0036] Figure 13 This is a schematic diagram of the mold opening station structure of this utility model. Figure 2 ;

[0037] Figure 14 This is a schematic diagram of the second conveying station structure of this utility model;

[0038] Figure 15 This is a schematic diagram of the cleaning station structure of this utility model;

[0039] Figure 16This is a schematic diagram of the flipping mechanism in the cleaning station of Embodiment 4 of this utility model;

[0040] Figure 17 This is a schematic diagram of the sand-removing rod structure of this utility model;

[0041] Figure 18 This is a schematic diagram of the first conveyor line structure of this utility model. Figure 1 ;

[0042] Figure 19 This is a schematic diagram of the first conveyor line structure of this utility model. Figure 2 .

[0043] In the diagram: 100, Sand-shooting station; 101, Sand-shooting conveyor line; 102, Sand-shooting machine; 103, Guide rail; 104, Moving base; 105, Push plate; 106, Mounting base; 107, Upper core plate; 1071, Sprue rod; 108, Lower core plate; 200, Hole-reaming station; 210, Tilting mechanism; 211, Base frame; 212, Rotating shaft; 213, Guide wheel; 214, Transmission gear; 215, Tilting motor; 216, Tilting ring; 217, Connecting plate; 218, Limiting roller; 220, Hole-reaming mechanism; 221, Mounting frame; 222, Hole-reaming cylinder; 223, Moving frame; 224, Hole-reaming motor; 225, Hole-reaming head; 226, Mounting plate; 227, Adjusting motor; 228. 229. Drive gear; 230. Rotating base; 231. Adjusting claw; 300. Roller; 310. First conveying station; 301. First conveying line; 302. Bottom support; 303. Cross frame; 304. Mounting shaft; 305. Conveying wheel; 306. Limiting end; 307. Transmission sprocket; 308. Chain; 400. Conveying motor; 500. First flipping station; 501. Mold closing station; 502. Mold closing conveying line; 503. Moving support one; 504. Mold closing motor; 505. Moving lead screw one; 506. Horizontal base one; 507. Vertical base one; 508. Guide column one; 509. Mold closing cylinder; 510. Clamping claw one; 600. Mating groove; 601. Turning station; 602. Fixed 602. Base; 603. Push cylinder; 604. Horizontal push plate; 605. Enclosure plate; 606. Steering base; 607. Connecting base; 608. Connecting guide wheel; 609. Reversing base; 610. Reversing guide wheel; 611. Limiting block; 612. First telescopic rod; 700. Preheating station; 701. Preheating conveyor line; 702. Preheating box; 800. Casting station; 801. Casting conveyor line; 802. Quantitative casting equipment; 900. Cooling station; 901. Cooling conveyor line; 902. Cooling box; 1000. Mold opening station; 1001. Mold opening conveyor line; 1002. Mold opening block; 1003. Moving bracket two; 1004. Mold opening motor; 1005. Moving... 1006. Lead screw 2; 1007. Horizontal base 2; 1008. Vertical base 2; 1009. Guide column 2; 1010. Mold opening cylinder; 1011. Ejector plate; 1012. Gripper 2; 1013. Ejector pin; 1100. Second flipping station; 1200. Second conveying station; 1201. Second conveying line; 1300. Cleaning station; 1301. Support base; 1302. Sand gathering plate; 1303. Sand outlet; 1304. Cleaning bracket; 1305. Cleaning cylinder; 1306. Moving frame; 1307. Vibration motor; 1308. Sand cleaning rod; 1309. Guide sleeve; 1310. Spring; 10. Casting mold; 11. Upper mold; 12. Lower mold; 13. Support platform; 20. Limiting roller. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0045] Example 1

[0046] like Figure 1 and Figure 2 As shown, this embodiment provides an automated sand-shooting casting production line, which includes a sand-shooting molding system, a preheating system, a casting system, a cooling system, and an automated mold-opening system arranged sequentially along the production direction;

[0047] By integrating the sand-shooting molding system, preheating system, casting system, cooling system, and automated mold-opening system into a complete continuous automated production line, efficient and continuous production of wear-resistant alloy balls in the casting process is achieved. During continuous automated production, the sand-shooting machine 102 directly shoots sand into the upper mold 11 and lower mold 12 of the casting mold 10 to create cores. After mold closing, the cores are automatically transported to the casting system for casting, saving the time spent manually transporting sand cores in traditional independent core-making casting processes. This also avoids physical contact with the sand cores, effectively reducing the breakage rate during transport and improving the product qualification rate. Simultaneously, this continuous automated production line achieves efficient and precise automated control between each process, significantly improving product quality and production efficiency.

[0048] Among them, the sand injection molding system is responsible for rapidly preparing sand cores in the upper mold 11 and the lower mold 12, expanding the pouring port, and then closing the mold and transferring it.

[0049] The preheating system preheats the mold to improve casting quality;

[0050] The gating system uses a quantitative gating device to ensure the accuracy of the amount of molten metal poured each time;

[0051] The cooling system cools the mold after casting, optimizing product molding performance and improving production efficiency;

[0052] The automated mold-opening system is responsible for opening the casting mold 10 and demolding and removing the wear-resistant alloy balls, reducing manual intervention and improving the degree of automation.

[0053] like Figure 1 and Figure 2As shown, the sand-shooting molding system in this embodiment includes a sand-shooting station 100, a hole-expanding station 200, a first conveying station 300, a first flipping station 400, a mold-closing station 500, and a turning station 600 adjacent to the mold-closing station 500, arranged sequentially along the production direction.

[0054] Specifically, such as Figure 3 As shown, the sand-shooting station 100 in this embodiment includes a docking and reaming station 200 and a sand-shooting conveyor line 101 of an automated mold-opening system. The conveying direction is along the production direction. The sand-shooting conveyor line 101 conveys the upper mold 11 and lower mold 12 after mold opening in an orderly manner. A sand-shooting machine 102 is correspondingly set at the top of the sand-shooting conveyor line 101. The sand-shooting machine 102 performs sand-shooting core making on the upper mold 11 and lower mold 12 on the sand-shooting conveyor line 101. The sand-shooting machine 102 is existing technology and can be a ZJZF-660-4 iron mold sand-coated four-station molding machine.

[0055] Furthermore, multiple guide rails 103 are provided at the bottom of the sand-shooting conveyor line 101. The multiple guide rails 103 are arranged parallel to each other, and all guide rails 103 are perpendicular to the conveying direction of the sand-shooting conveyor line 101. The number of guide rails 103 is even, and multiple guide rails 103 are grouped in pairs. The following is a specific example of setting four guide rails 103: There are two groups of four guide rails 103. Each group of guide rails 103 has a movable base 104 slidably mounted on it. Two sets of push plates 105 are arranged parallel to each other on the top of the movable base 104. Each set of push plates 105 has a mounting base 106 mounted on its top. An upper core plate 107 or a lower core plate 108 is provided on the mounting base 106, wherein the position of the upper core plate 107 or the lower core plate 108 corresponds to the upper mold 11 and the lower mold 12 on the sand-shooting conveyor line 101.

[0056] It should be noted that the specific number of guide rails 103 is selected according to the actual number of sand-shooting heads 102; and in this embodiment, the lifting plate 105 is driven by a hydraulic cylinder (not shown in the figure) located inside the movable base 104. During the actual rise of the upper core plate 107 or the lower core plate 108, the four sets of lifting plates 105 rise synchronously and at the same speed.

[0057] It should be noted that in this embodiment, a driving device is provided on one side of the bottom of the sand shooting conveyor line 101. The driving device drives the movable base 104 to move horizontally on the guide rail 103, thereby realizing the alignment of the upper core plate 107 or the lower core plate 108 with the corresponding upper mold 11 and lower mold 12. The driving device is existing technology and can be a cylinder, hydraulic cylinder, electric telescopic rod, etc. Specifically, the driving device is set on the non-operation side (i.e., the side inside the rectangular production line) to avoid affecting the operation on the operation side, and the number of driving devices can be selected according to actual needs.

[0058] The specific working process of the sand-shooting station 100 is as follows: After the upper mold 11 and lower mold 12 have been opened by the automated mold-opening system, they are sequentially conveyed on the sand-shooting conveyor line 101. When the corresponding number of upper molds 11 and lower molds 12 are conveyed to the area directly below the sand-shooting machine 102, the drive device is activated to drive the moving base 104 to move. The moving base 104 drives the upper core plate 107 and lower core plate 108 to move directly below the sand-shooting conveyor line 101, and the upper core plate 107 and lower core plate 108 are aligned with the upper mold 102. The upper mold 11 and lower mold 12 are positioned correspondingly. Then, the hydraulic cylinder is activated to drive the lifting plate 105 upwards, causing the upper core plate 107 and lower core plate 108 to move upwards by a set distance, engaging with the corresponding upper mold 11 and lower mold 12. During this engagement, the nozzle of the sand-shooting machine 102 moves downwards to press the upper mold 11 and lower mold 12, ensuring a tight fit with the upper core plate 107 and lower core plate 108. The sand-shooting nozzle of the sand-shooting machine 102 extends into the sand-shooting openings of the upper mold 11 and lower mold 12. After engagement, the sand-shooting machine 102 executes the sand-shooting program, shooting sand into the hemispherical cavity formed by the upper mold 11 and upper core plate 107, and the lower mold 12 and lower core plate 108, completing the preparation of the sand core. After one set of preparations is completed, the sand-shooting machine 102, upper core plate 107, and lower core plate 108 are reset, awaiting the next set of sand-shooting core making.

[0059] It should be noted that multiple sets of limiting posts can be installed on the bottom surface of the injection head of the sand-shooting machine 102 to limit the downward pressing position and the insertion depth of the injection nozzle, and a gate channel penetrating the cavity is opened in the middle of the upper mold 11 (such as...). Figure 4 As shown in the diagram, the lower mold 12 has a through-cavity venting channel in the middle (as shown in the diagram). Figure 4 As shown in the figure, the bottom surface of the injection head of the sand shooting machine 102 is provided with sealing bosses corresponding to the gate channel and the venting channel. When the injection head of the sand shooting machine 102 moves down to squeeze the upper mold 11 and the lower mold 12, the bottom surface of the sealing boss is sealed and fitted with the top surface of the gate channel and the venting channel. There is also a venting gap between the bottom surface of the sealing boss and the top surface of the gate channel and the venting channel to facilitate the discharge of gas inside the mold during the sand shooting process.

[0060] Furthermore, it should be understood that since the gating channel of the upper mold 11 is also in contact with the alloy solution during the casting process, the gating channel also needs sand core protection. In this embodiment, a gating rod 1071 is provided in the middle of the upper core plate 107 corresponding to the gating channel. The top surface of the gating rod 1071 is flush with the top surface of the gating channel. Since the gating rod 1071 needs to facilitate the lowering and demolding of the upper core plate 107, the gating rod 1071 is cylindrical or inverted conical. Therefore, the opening at the top of the gating channel after sand injection molding is relatively small. In order to make casting more convenient, the top of the gating channel needs to be enlarged.

[0061] In view of this, such as Figure 4As shown, this embodiment is provided with a hole-expanding station 200, and the hole-expanding station 200 is provided with a flipping mechanism 210 and a hole-expanding mechanism 220. The flipping mechanism 210 is connected to the sand-shooting conveyor line 101 and the first conveying station 300, while the hole-expanding mechanism 220 is located outside the flipping mechanism 210 and close to the side of the sand-shooting conveyor line 101.

[0062] The flipping mechanism 210 includes a base frame 211. Two sets of support plates are symmetrically arranged on the top two sides of the base frame 211. Rotating shafts 212 are rotatably arranged between the two support plates corresponding to the production direction. The two rotating shafts 212 are symmetrically distributed about the center line of the sand shooting conveyor line 101. One rotating shaft 212 has guide wheels 213 symmetrically arranged at both ends, and the other rotating shaft 212 has transmission gears 214 symmetrically arranged at both ends. The guide wheels 213 and transmission gears 214 on the same side are coplanar. One end of the rotating shaft 212 connected to the transmission gears 214 is connected to a flipping motor 215, which is mounted on the base frame 211.

[0063] Furthermore, a rotating ring 216 is provided on the same side of the guide wheel 213 and the transmission gear 214 for transmission. The outer shaft surface of the rotating ring 216 has a toothed groove. The transmission gear 214 meshes with the rotating ring 216. The rotating motor 215 drives the transmission gear 214 to rotate, which in turn drives the rotating ring 216 to rotate. The rotating rotating ring 216 slides in the guide wheel 213. The outer surface of the rotating ring 216 has a mating groove. Limiting rollers 20 are provided at both ends of the first conveying station 300 and the sand shooting conveyor line 101 corresponding to the rotating ring 216. The two sets of limiting rollers 20 on the same side extend into the mating groove of the rotating ring 216 on the same side (e.g., Figure 4 As shown, the flip ring 216 is restricted to ensure the stability of its rotation.

[0064] Furthermore, the two sets of flipping rings 216 are coaxially arranged, and the axis of the flipping rings 216 is coaxial with the center line of the upper mold 11 and the lower mold 12, so that the upper mold 11 or the lower mold 12 can still be connected to the first conveying station 300 after flipping, and can be conveyed smoothly. In addition, two sets of connecting plates 217 are connected between the two sets of flipping rings 216. The two sets of connecting plates 217 are symmetrically arranged about the upper mold 11 or the lower mold 12. Multiple limiting rollers 218 are provided on the inner side of each set of connecting plates 217, and the multiple limiting rollers 218 are divided into upper and lower groups to clamp the conveyed upper mold 11 or lower mold 12.

[0065] It should be noted that the casting mold 10 in this embodiment is prior art. Both the upper mold 11 and the lower mold 12 are provided with extended support platforms 13, which are also suspended from the sand-shooting conveyor line 101 via the support platforms 13. The distance between the upper and lower sets of limiting rollers 218 on the inner side of the connecting plate 217 is equal to the thickness of the support platform 13. The support platform 13 is held in place by the upper and lower sets of limiting rollers 218 (e.g., ...). Figure 4 As shown in the figure, the plane formed by the highest point of the lower limiting roller 218 is flush with the conveying plane of the sand shooting conveyor line 101, so that the upper mold 11 or the lower mold 12 can be smoothly conveyed from the sand shooting conveyor line 101 to the flipping mechanism 210.

[0066] Preferably, in this embodiment, the hole-reaming mechanism 220 includes a mounting frame 221 disposed near the sand-shooting station 100. A hole-reaming cylinder 222 is mounted on the top of the mounting frame 221. The telescopic rod of the hole-reaming cylinder 222 passes through the mounting frame 221 and is connected to a movable frame 223. A hole-reaming motor 224 is disposed inside the movable frame 223. The output shaft of the hole-reaming motor 224 passes through the bottom plate of the movable frame 223 and is connected to a hole-reaming head 225. The hole-reaming head 225 is as follows: Figure 4 The inverted cone shape facilitates the enlargement of the sand core at the gating channel of the upper mold 11 after sand injection, thereby making it easier to pour in the molten alloy liquid during the casting process.

[0067] It should be understood that after the upper mold 11 and lower mold 12 pass through the sand-shooting station 100 for core making, the upper mold 11 and lower mold 12 are set with the forming surface facing downwards. Therefore, the hole-expanding mechanism 220 can directly expand the hole of the upper mold 11. However, since the waste sand generated during the hole-expanding process is easy to accumulate on the surface of the upper mold 11, it affects the fixation of the subsequent casting process. Therefore, in this embodiment, a set of flipping mechanism 210 is set in the hole-expanding station 200 to flip the upper mold 11 after hole expansion to clean the sand. Furthermore, since the lower mold 12 needs to be formed with the forming surface facing upwards during the mold closing stage, the set of flipping mechanism 210 set in the hole-expanding station 200 simultaneously flips the adjacent upper mold 11 and lower mold 12 (that is, the flipping mechanism 21 flips the two molds at one time).

[0068] In this embodiment, the working process of the hole-reaming station 200 is as follows:

[0069] After the upper mold 11 and lower mold 12, which are conveyed from the sand shooting conveyor line 101, enter the flipping mechanism 210, the hole-expanding cylinder 222 is activated, which drives the moving frame 223 to move down. The moving frame 223 drives the hole-expanding head 225 to move down until it corresponds to the gate of the upper mold 11, and expands the sand core hole of the gate channel. After the hole is expanded, the flipping motor 215 is activated, which drives the transmission gear 214 to rotate. The transmission gear 214 drives the flipping rings 216 on both sides to flip. After flipping 180 degrees, they continue to be squeezed and conveyed to the first conveying station 300.

[0070] like Figure 1 , Figure 2 and Figure 18 As shown, a first conveyor line 310 with a connecting flipping mechanism 210 is provided at the first conveying station 300, and the first conveyor line 310 is connected to the first flipping station 400 on the other side of the production direction.

[0071] like Figure 7 and Figure 8 As shown, the first flipping station 400 in this embodiment is provided with a set of flipping mechanisms 210. The flipping mechanism 210 connects the first conveyor line 310 and the mold closing station 500. The flipping mechanism 210 only flips the upper mold 11 that was flipped by the previous process (in order to remove the waste sand generated by the hole expansion, the upper mold 11 was flipped so that the forming surface is facing up. In this process, the upper mold 11 is flipped again so that the forming surface is facing down, which is convenient for subsequent mold closing).

[0072] In this embodiment, the working process of the first flipping station 400 is as follows: when the upper mold 11 with the forming surface facing down moves into the flipping mechanism 210 of the first flipping station 400, the flipping mechanism 210 of the hole expansion station 200 flips, flipping the forming surface of the upper mold 11 downwards, and then continues to be conveyed to the mold closing station 500.

[0073] It should be noted that in this embodiment, the upper mold 11 and lower mold 12 are prepared before mold closing by the flipping mechanism 210 of the hole expansion station 200 and the flipping mechanism 210 of the first flipping station 400. The flipping mechanism 210 of the hole expansion station 200 is configured to flip two sets of templates at a time, and the flipping mechanism 210 of the first flipping station 400 is configured to flip one set of templates at a time. This minimizes the number of flips of the upper mold 11 and lower mold 12 from the sand shooting station 100 to the mold closing station 500. By reducing the number of flips, the sand cores in the upper mold 11 and lower mold 12 are less affected by vibration and flipping during the transmission process, thus reducing the probability of sand core defects.

[0074] Furthermore, the mold closing station 500 in this embodiment is specifically as follows: Figure 7 and Figure 8 As shown, the mold closing conveyor line 501 is connected to the flipping mechanism 210 in the first flipping station 400. A turning station 600 is connected to the other side of the mold closing conveyor line 501 along the production direction. The turning station 600 is located inside the mold closing station 500 and works with the mold closing station 500 to realize the mold closing process of the upper mold 11 and the lower mold 12.

[0075] Specifically, a movable support 502 is provided above the mold closing conveyor line 501. A movable lead screw 504 is rotatably mounted in the middle of the movable support 502, and a mold closing motor 503 is provided on one side of the movable support 502. The output shaft of the mold closing motor 503 is connected to one end of the movable lead screw 504. A transverse base 505 is threaded onto the movable lead screw 504. A vertical base 506 is slidably mounted at the bottom of the transverse base 505, and guide posts are provided at each of the four corners of the vertical base 506. Four sets of guide pillars 507 are set upward through the transverse base 505. A multi-combination mold cylinder 508 is set on the top of the transverse base 505. The telescopic rod of the multi-combination mold cylinder 508 passes through the transverse base 505 and connects to the vertical base 506. At the four corners of the bottom surface of the vertical base 506, there are grippers 509. The four grippers 509 cooperate to clamp the upper mold 11 conveyed by the mold closing conveyor line 501 to the lower part and move it to the turning station 600 to complete the mold closing.

[0076] It is important to note that guide rods are rotatably installed at both ends inside the movable support 502. The two sets of guide rods are symmetrically arranged about the axis of the movable lead screw 504, and the two sets of guide rods are slidably arranged with the transverse base 505. The movable lead screw 504 is driven to rotate by the mold closing motor 503, and the movable lead screw 504 drives the transverse base 505 to move laterally, thereby realizing the mold closing displacement of the upper mold 11. At the same time, the mold closing cylinder 508 drives the vertical base 506 to move vertically, thereby driving the four sets of grippers 509 to move up and down, realizing the lifting and lowering of the upper mold 11.

[0077] It should also be noted that a mating groove 510 is adapted to the position of the gripper 509 on the mold closing conveyor line 501. In the non-mold closing stage, the gripper 509 moves down and extends into the mating groove 510. When the corresponding upper mold 11 moves to the mold closing position, the clamping cylinder 508 drives the gripper 509 to move up, thereby lifting the upper mold 11.

[0078] Furthermore, such as Figure 1 , Figure 2 and Figures 7-10As shown, in this embodiment, the turning station 600 is located at the corner where the mold closing station 500 and the preheating station 700 turn. The turning station 600 includes a protective enclosure 604. A turning base 605 is provided at the bottom of the enclosure 604. A connecting base 606 and a reversing base 608 are arranged vertically and alternately on the top of the turning base 605, with the connecting base 606 located below the reversing base 608. The connecting base 606 is connected to the mold closing conveyor line 501, and the reversing base 608 is connected to the preheating conveyor line 701 in the preheating station 700. Specifically, multiple sets of first telescopic rods 611 and second telescopic rods 612 are provided inside the steering base 605. The second telescopic rod 612 is connected to the bottom surface of the connecting base 606, and the first telescopic rod 611 passes through the connecting base 606 and connects to the bottom surface of the reversing base 608. The bottom of the connecting base 606 is provided with a through hole for the first telescopic rod 611 to pass through, so as to avoid mutual interference caused by movement.

[0079] More specifically, such as Figure 10 As shown, multiple sets of connecting guide wheels 607 are rotatably arranged on both sides of the connecting base 606, and multiple sets of reversing guide wheels 609 are rotatably arranged on both sides of the reversing base 608. A limit block 610 is provided at the end of the reversing base 608 away from the mold closing conveyor line 501 to limit the lower mold 12 that moves to the connecting base 606, ensuring that it corresponds to the preheating conveyor line 701 after reversing, which facilitates turning and conveying.

[0080] It should be understood that in this embodiment, the mold closing station 500 and the turning station 600 work together to complete the two processes of mold closing and turning. The turning station 600 participates in both the mold closing and turning processes, integrating mold closing and turning into one, which further improves the processing efficiency.

[0081] like Figure 7 and Figure 8 As shown, the aforementioned turning station 600 also includes a fixed base 601 disposed on the outside of the enclosure 604. A push cylinder 602 is disposed on the top of the fixed base 601. A horizontal push plate 603 is installed on the top of the telescopic rod of the push cylinder 602. The horizontal push plate 603 corresponds to the side position of the casting mold 10, and the push cylinder 602 is parallel to the conveying direction of the process after turning. The push cylinder 602 pushes the laterally moving casting mold 10 to the next longitudinally moving process.

[0082] The specific working process of mold closing station 500 and turning station 600 is as follows:

[0083] The upper mold 11 and lower mold 12, conveyed to the mold closing conveyor line 501, move sequentially, with the lower mold 12 in front and the upper mold 11 behind. The lower mold, which is in front, moves to the connecting base 606 of the turning station 600 and is limited by the limiting block 610 of the reversing base 608. Then, the first telescopic rod 611 and the second telescopic rod 612 simultaneously drive the connecting base 606 and the reversing base 608 to move downward, moving the lower mold 12 to a lower position; the mold closing is started simultaneously. Cylinder 508 drives gripper 509 to move upward, lifting and moving the upper mold 11 directly below the transverse base 505 (the set mold closing position). After being lifted a set distance, the mold closing motor 503 is started, driving the moving screw 504 to rotate. The moving screw 504 drives the transverse base 505 to move directly above the turning station 600. Then, the mold closing cylinder 508 drives gripper 509 to move downward, closing the upper mold 11 and the lower mold 12.

[0084] After the mold is closed, the first telescopic rod 611 and the second telescopic rod 612 are activated to simultaneously push the closed casting mold 10 upward, moving it to the reversing base 608 to connect with the preheating conveyor line 701. The second telescopic rod 612 is activated to drive the connecting base 606 downward until the casting mold 10 is supported on the reversing base 608, and the top surface of the connecting base 606 is lower than the casting mold 10. The pushing cylinder 602 is activated to push the casting mold 10 to the preheating conveyor line 701, completing the mold closing and reversing.

[0085] Furthermore, such as Figure 1 and Figure 2 As shown, the preheating system in this embodiment includes a preheating station 700, which includes a preheating conveyor line 701 connected to the turning station 600. The preheating conveyor line 701 is arranged perpendicularly to the mold closing conveyor line 501, and a preheating box 702 is also fitted on the preheating conveyor line 701. The preheating box 702 preheats the casting mold 10 that passes through, which helps to reduce the temperature difference in subsequent casting and improve product performance.

[0086] The aforementioned preheating box 702 is used to provide a heat source and is existing technology, including but not limited to using a gas stove installed at the bottom of the preheating box 702 to burn and heat the casting mold 10 on the preheating conveyor line 701, and reducing heat diffusion through the outer shell.

[0087] like Figure 1 and Figure 2 As shown, the casting system in this embodiment includes a casting station 800, which includes a casting conveyor line 801 and a quantitative casting device 802. The casting conveyor line 801 is arranged horizontally and parallel to the mold closing conveyor line 501. The quantitative casting device 802 is arranged above the side of the casting conveyor line 801 near the preheating station 700. The quantitative casting device 802 is used to cast the mold 10 at the casting position to achieve the casting and forming of wear-resistant alloy balls.

[0088] The quantitative casting device 802 is existing technology. By adding a weighing sensor and a software control system to the existing casting machine, the weight of the molten iron in the ladle can be calculated in real time. When the weight of the molten iron in the ladle is less than the set lower limit, an alarm will be automatically triggered to replenish the molten iron. The above is existing technology and will not be described in detail here.

[0089] A turning station 600 is provided at the corner where the preheating conveyor line 701 and the casting conveyor line 801 meet. The specific structure of the turning station 600 is the same as that of the turning station 600 located inside the mold closing station 500. The turning from the preheating conveyor line 701 to the casting conveyor line 801 is completed by pushing the casting mold 10 to move through the hydraulic cylinder 602. The specific structure is as follows: Figure 11 As shown.

[0090] The working process of the turning station 600 located between the preheating conveyor line 701 and the casting conveyor line 801 is as follows:

[0091] The casting mold 10 on the preheating conveyor line 701 is moved to the connecting base 606 by the previous push cylinder 602 located on the side of the mold closing station 500. The first telescopic rod 611 and the second telescopic rod 612 are activated to push the mold 10 after mold closing to rise and move to the reversing base 608 to connect with the casting conveyor line 801. The second telescopic rod 612 is activated to drive the connecting base 606 to move down. The push cylinder 602 located between the preheating conveyor line 701 and the casting conveyor line 801 is activated to turn the preheated casting mold 10 and transport it to the casting conveyor line 801.

[0092] Furthermore, such as Figure 1 and Figure 2 As shown, the cooling system of this embodiment includes a cooling station 900 provided at the end of the casting conveyor line 801 along the production direction. The cooling station 900 includes a cooling conveyor line 901 connected to the casting conveyor line 801. The cooling conveyor line 901 is parallel to the preheating conveyor line 701, and a cooling box 902 is also provided on the cooling conveyor line 901. The cooling box 902 is used to provide a cooling source, such as cold air or cooling water. The cooling box 902 is prior art, and its specific structure will not be described in detail here. The cooling box 902 can start the cooling process according to actual needs. When the production environment temperature changes due to seasonal temperature issues, it can be turned on adaptively according to the temperature change, such as turning off in summer and turning on in winter.

[0093] It should be understood that there is a natural cooling distance between the pouring conveyor line 801 and the cooling conveyor line 901. Based on the natural cooling distance, the cooling box 902 can be turned on for cooling as appropriate.

[0094] Specifically, such as Figure 1 and Figure 2 As shown, a set of turning stations 600 is set between the pouring conveyor line 801 and the cooling conveyor line 901. Its specific structure and working process are the same as those of the turning station 600 located between the preheating conveyor line 701 and the pouring conveyor line 801.

[0095] Furthermore, such as Figure 1 and Figure 2 As shown, the automated mold opening system in this embodiment includes a mold opening station 1000, a second flipping station 1100, a second conveying station 1200 and a cleaning station 1300 arranged sequentially along the production direction.

[0096] Specifically, such as Figure 12 and Figure 13 As shown, in this embodiment, the mold opening station 1000 includes a mold opening conveyor line 1001 that is connected to the cooling conveyor line 901. A movable support 1003 is provided on the top of the mold opening conveyor line 1001. A movable lead screw 1005 is rotatably provided in the middle of the top of the movable support 1003. A mold opening motor 1004 is provided at one end of the top of the movable support 1003. The output shaft of the mold opening motor 1004 is connected to one end of the movable lead screw 1005. A transverse base 1006 is threaded onto the movable lead screw 1005. Multiple sets of mold opening cylinders 1009 are provided on the top of the transverse base 1006. A telescopic rod passes through the horizontal moving base 1006 and connects to the vertical moving base 1007. Guide posts 1008 are provided at the four corners of the top of the vertical moving base 1007. The four guide posts 1008 extend upward through the horizontal moving base 1006. Multiple sets of guide rods are provided on the bottom surface of the horizontal moving base 1006. The multiple sets of guide rods pass through the vertical moving base 1007 and connect to the ejector plate 1010. An ejector pin 1012 is provided in the middle of the bottom surface of the ejector plate 1010. Clamping claws 1011 are provided at the four corners of the bottom surface of the vertical moving base 1007. The four clamping claws 1011 are used to lift the upper mold 11 and open the casting mold 10 after casting.

[0097] A mold opening block 1002 is symmetrically arranged on the side of the mold opening conveyor line 1001 away from the cooling station 900. The mold opening block 1002 is used to limit the lower mold 12 during the mold opening process to facilitate smooth mold opening.

[0098] It should be noted that guide rods are symmetrically arranged on the top of the movable support 1003. The two guide rods are symmetrically arranged about the movable lead screw 1005, and the transverse base 1006 is slidably arranged with the two guide rods, so that the transverse base 1006 can move transversely stably. Furthermore, a mating groove is provided on the mold opening conveyor line 1001 corresponding to the gripper 1011. In the unopened stage, the gripper 1011 extends into the mating groove and is placed there.

[0099] It should be further noted that a set of turning stations 600 is also set between the mold opening conveyor line 1001 and the cooling conveyor line 901. Its specific structure and working process are the same as those of the turning station 600 located between the preheating conveyor line 701 and the casting conveyor line 801.

[0100] The working process of mold opening station 1000 is as follows:

[0101] The cooling casting mold 10 is rotated and pushed to the mold opening position (set with mold opening block 1002) by the pushing cylinder 602 between the mold opening conveyor line 1001 and the cooling conveyor line 901. The mold opening block 1002 will enter along the gap between the upper and lower support platforms 13 of the casting mold 10. When it moves to the set mold opening position, the mold opening cylinder 1009 is activated to drive the vertical moving base 1007 to move upward. The vertical moving base 1007 drives the gripper 1011 to move upward. After moving upward a set distance, the mold opening motor 1004 is activated to drive the horizontal moving base 1006 to move horizontally. The horizontal moving base 1006 drives the gripper 1011 to move between the upper and lower support platforms 13 of the casting mold 10. The mold opening cylinder 1009 is activated to drive the gripper 1011 to move upward a second time, raising the upper mold 11 and opening the casting mold 10. After the mold is opened, the mold opening motor 1004 drives the transverse base 1006 to move laterally, placing the upper mold 11 on the rear end of the lower mold 12 (near the cooling station 900). By pushing the hydraulic cylinder 602, the upper mold 11 and the lower mold 12 continue to be conveyed on the mold opening conveyor line 1001.

[0102] It is important to note that during the mold opening process, in order to prevent the wear-resistant alloy ball from sticking to the mold, the ejector pins 1012 on the ejector plate 1010 are inserted into the gate channel of the upper mold 11 to eject the product. The entire ejection process is completed simultaneously with the mold opening process. After the mold is opened, the product will fall onto the lower mold 12 and be picked up and collected by a robotic arm to enter the next process.

[0103] Furthermore, such as Figure 14 As shown, in this embodiment, the second flipping station 1100 is connected to the mold opening conveyor line 1001. The second flipping station 1100 includes a set of flipping mechanisms 210. The flipping mechanism 210 flips the upper mold 11 after mold opening by 180 degrees, so that the forming surfaces of the upper mold 11 and the lower mold 12 are both facing upwards. After flipping, it is pressed and moved to the second conveyor station 1200.

[0104] like Figure 1 and Figure 2 As shown, a second conveyor line 1201 is provided on the second conveying station 1200. The second conveyor line 1201 has the same structure as the first conveyor line 310 and connects the second flipping station 1100 and the cleaning station 1300 to complete the stable conveying of the upper mold 11 and the lower mold 12.

[0105] Furthermore, such as Figure 15 and Figure 16 As shown, the cleaning station 1300 in this embodiment includes a set of flipping mechanisms 210 connected to the second conveyor line 1201 and the sand shooting conveyor line 101. A cleaning bracket 1304 is provided on the top of the outer side of the flipping mechanism 210. Multiple sets of cleaning cylinders 1305 are symmetrically arranged on the top of the cleaning bracket 1304. The telescopic rod of the cleaning cylinder 1305 passes through the cleaning bracket 1304 and is connected to a movable frame 1306. Multiple sets of sand cleaning rods 1308 are provided at the bottom of the movable frame 1306. A cleaning brush is connected to the bottom of the sand cleaning rods 1308. A vibration motor 1307 is provided inside the movable frame 1306. The vibration motor 1307 drives the sand cleaning rods 1308 and the cleaning brush to vibrate, thereby completing the removal of the sand core from the upper mold 11 and the lower mold 12 after mold opening.

[0106] It should be noted that the number of cleaning cylinders 1305 is set according to the number of upper molds 11 and lower molds 12 that need to be cleaned, and the length of the flipping mechanism 210 is also set according to the actual number of upper molds 11 and lower molds 12 to be cleaned.

[0107] Furthermore, such as Figure 17 As shown, in order to thoroughly clean the residual sand core in the upper mold 11 and the lower mold 12, a guide sleeve 1309 is also fitted on the top of the multiple sets of sand-cleaning rods 1308 set on the bottom surface of the moving frame 1306. A spring 1310 is set in the guide sleeve 1309. One end of the spring 1310 is connected to the sand-cleaning rod 1308 to achieve elastic contact when pressed down, so as to avoid damage to the molding surfaces of the upper mold 11 and the lower mold 12. In addition, it can also make flexible contact with different molding structures on the molding surface, so that the multiple sets of sand-cleaning rods 1308 can fully vibrate and clean the entire area of ​​the molding surface.

[0108] The working process of cleaning station 1300 in this embodiment is as follows:

[0109] The upper mold 11 and lower mold 12 that need cleaning are squeezed into the flipping mechanism 210 of the cleaning station 1300 by the adjacent upper mold 11 or lower mold 12. The cleaning cylinder 1305 is activated, which drives the moving frame 1306 to move down. The moving frame 1306 drives the sand cleaning rod 1308 to move down, so that the cleaning brush comes into contact with the sand core. The vibration motor 1307 is activated, which drives the sand cleaning rod 1308 to vibrate, causing the sand core to be shaken off. Then, the flipping mechanism 210 drives the upper mold 11 and lower mold 12 to rotate 180 degrees, dumping the waste sand. The cleaned upper mold 11 and lower mold 12 are transported to the sand shooting machine 102 through the sand shooting conveyor line 101 for the next cycle.

[0110] It should be noted that the first conveyor line 310, the sand shooting conveyor line 101, the mold closing conveyor line 501, the casting conveyor line 801, the cooling conveyor line 901, the mold opening conveyor line 1001, and the second conveyor line 1201 are all existing technologies, and the structures of the above-mentioned conveyor lines are the same, all of which are used to convey and transfer the casting mold 10.

[0111] Taking the first conveyor line 310 as an example, including but not limited to the following examples:

[0112] Example 1, such as Figure 18 As shown, the first conveyor line 310 includes multiple sets of bottom supports 301. Horizontal frames 302 are symmetrically arranged at both ends of the top of the multiple sets of bottom supports 301. Multiple mounting shafts 303 are mounted on the two horizontal frames 302. Conveyor wheels 304 are rotatably mounted on the inner ends of the mounting shafts 303. The multiple sets of conveyor wheels 304 are arranged in parallel. The support platform 13 of the upper mold 11 or lower mold 12 is supported by the multiple sets of conveyor wheels 304 at both ends, and the material is conveyed by external force on the conveyor wheels 304. Furthermore, the outer end of each conveyor wheel 304 is provided with an outwardly extending limiting end 305. The limiting end 305 on the corresponding two sets of conveyor wheels 304 limits the side of the support platform 13, maintaining the straight conveying of the upper mold 11 or lower mold 12.

[0113] Example 2, such as Figure 19 As shown, the first conveyor line 310 includes multiple sets of bottom supports 301. Horizontal frames 302 are symmetrically arranged at both ends of the top of the multiple sets of bottom supports 301. Multiple mounting shafts 303 are rotatably arranged on the two horizontal frames 302. A transmission sprocket 306 is installed on the outer end of the mounting shaft 303, and a conveyor wheel 304 is installed on the inner end of the mounting shaft 303. The multiple transmission sprockets 306 on the outer side are connected by a chain 307. Conveyor motors 308 are arranged on both sides of the bottom supports 301. The output shaft of the conveyor motor 308 is connected to a mounting shaft 303 to drive the conveyor wheel 304. Through the synchronous drive of the conveyor motors 308 at both ends, the conveyor wheel 304 is driven to rotate, thereby actively conveying the casting mold 10 and improving the convenience of conveying.

[0114] The first conveyor line 310, sand-shooting conveyor line 101, mold-closing conveyor line 501, casting conveyor line 801, cooling conveyor line 901, mold-opening conveyor line 1001, and the second conveyor line 1201 can all adopt the structure of Example 1, or partially adopt the structure of Example 1 and partially adopt the structure of Example 2. Active drive reduces the difficulty of driving the hydraulic cylinders 602 at the turning points of the entire production line, improving the smoothness of the casting mold 10's operation on the production line. When using the structure of Example 2, a control system needs to be set up to control the operating status of multiple conveyor motors 308 to ensure the accuracy of the conveying position in each process.

[0115] Example 2

[0116] This embodiment provides an automated sand-shooting casting production method, applying the automated sand-shooting casting production line of Embodiment 1, including the following steps:

[0117] Step 1, Sand Shot Molding: The sand shot conveyor line 101 transports the upper mold 11 and the lower mold 12 to the area directly below the sand shot machine 102. The drive device is started to drive the upper core plate 107 and the lower core plate 108 to cooperate with the upper mold 11 and the lower mold 12. Then the sand shot machine 102 is started to complete the preparation of the sand core.

[0118] Specifically, the upper mold 11 and lower mold 12 are sequentially conveyed on the sand-shooting conveyor line 101. When they reach directly below the sand-shooting machine 102, the drive device is activated to move the movable base 104. The movable base 104 moves the upper core plate 107 and lower core plate 108 directly below the sand-shooting conveyor line 101, with the upper core plate 107 and lower core plate 108 corresponding to the positions of the upper mold 11 and lower mold 12. Then, the hydraulic cylinder is activated to drive the lifting plate 105 to rise, causing the upper core plate 107 and lower core plate 108 to move upward by a set distance. The upper mold 11 and lower mold 12 are matched with the corresponding upper mold 11 and lower mold 12. During the matching process, the nozzle of the sand shooting machine 102 moves down to squeeze the upper mold 11 and lower mold 12, so that they are tightly matched with the upper core plate 107 and lower core plate 108. The sand shooting nozzle of the sand shooting machine 102 extends into the sand shooting openings of the upper mold 11 and lower mold 12. After the matching is completed, the sand shooting machine 102 executes the sand shooting program to shoot sand into the hemispherical cavity formed by the matching of the upper mold 11 and the upper core plate 107 and the lower mold 12 and the lower core plate 108, so as to complete the preparation of the sand core.

[0119] Step 2, Hole Enlargement and Flipping: After sand injection, the upper mold 11 and lower mold 12 enter the flipping mechanism 210. The hole enlargement cylinder 222 is activated to drive the hole enlargement head 225 to move down and enlarge the sand core hole of the gate channel. After hole enlargement, the flipping mechanism 210 drives the upper mold 11 and lower mold 12 to flip.

[0120] Specifically, after the upper mold 11 and lower mold 12, which are conveyed from the sand shooting conveyor line 101, enter the flipping mechanism 210, the hole-expanding cylinder 222 is activated, which drives the moving frame 223 to move down. The moving frame 223 drives the hole-expanding head 225 to move down until it corresponds to the gate of the upper mold 11, and expands the sand core hole of the gate channel. After the hole is expanded, the flipping motor 215 is activated, which drives the transmission gear 214 to rotate. The transmission gear 214 drives the flipping rings 216 on both sides to flip. After flipping 180 degrees, they continue to be squeezed and conveyed to the first conveying station 300.

[0121] Step 3, Secondary Flip: The first flip station 400 flips the upper mold 11 conveyed by the first conveying station 300;

[0122] Step 4, Mold Closing and Turning: The upper mold 11 and lower mold 12, which are transferred from the first flipping station 400 to the mold closing conveyor line 501, are conveyed to the frontmost lower mold 12 to cooperate with the connecting base 606. Then, the connecting base 606 and the reversing base 608 move down, and simultaneously the mold closing cylinder 508 drives the gripper 509 to move up, lifting the upper mold 11. Then, the upper mold 11 moves laterally to the top of the turning station 600. Then, the mold closing cylinder 508 drives the gripper 509 to move down, closing the upper mold 11 and the lower mold 12. After mold closing, the reversing base 608 cooperates with the hydraulic cylinder 602 to transfer the casting mold 10 to the preheating conveyor line 701.

[0123] Specifically, the upper mold 11 and lower mold 12, which are conveyed to the mold closing conveyor line 501, move sequentially, with the lower mold 12 in front and the upper mold 11 behind. The lower mold 12, which is in front, moves to the connecting base 606 of the turning station 600 and is limited by the limiting block 610 of the reversing base 608. Then, the first telescopic rod 611 and the second telescopic rod 612 synchronously drive the connecting base 606 and the reversing base 608 to move downward, thus moving the lower mold 12 to a lower position; synchronous start-up... The moving mold-closing cylinder 508 drives the gripper 509 to move upward, lifting and moving the upper mold 11 directly below the transverse base 505 (the set mold-closing position). After being lifted a set distance, the mold-closing motor 503 is started, driving the moving screw 504 to rotate. The moving screw 504 drives the transverse base 505 to move directly above the turning station 600. Then, the mold-closing cylinder 508 drives the gripper 509 to move downward, closing the upper mold 11 and the lower mold 12.

[0124] After the mold is closed, the first telescopic rod 611 and the second telescopic rod 612 are activated to simultaneously push the closed casting mold 10 upward, moving it to the reversing base 608 to connect with the preheating conveyor line 701. The second telescopic rod 612 is activated to drive the connecting base 606 downward until the casting mold 10 is supported on the reversing base 608, and the top surface of the connecting base 606 is lower than the casting mold 10. The pushing cylinder 602 is activated to push the casting mold 10 to the preheating conveyor line 701, completing the mold closing and reversing.

[0125] Step 5: Preheating, casting, and cooling: The casting mold 10 is preheated at the preheating station 700, quantitatively cast at the casting station 800, and cooled at the cooling station 900. After that, it is transported to the mold opening station 1000. The casting mold 10 is moved in different directions by the push cylinder 602 at the turning point of each station.

[0126] Step 6, Mold Opening: The cooled casting mold 10 is conveyed to the mold opening position, the mold opening block 1002 is inserted into the casting mold 10, the mold opening cylinder 1009 is started to drive the second gripper 1011 to move into the casting mold 10, the mold opening cylinder 1009 is started to drive the second gripper 1011 to move upward, and the mold opening is completed. Then the upper mold 11 is placed on the mold opening conveyor line 1001.

[0127] Specifically, the cooling casting mold 10 is rotated and pushed to the mold opening position (set at the position of the mold opening block 1002) by the pushing cylinder 602 between the mold opening conveyor line 1001 and the cooling conveyor line 901. The mold opening block 1002 will enter along the gap between the upper and lower support platforms 13 of the casting mold 10. When it moves to the set mold opening position, the mold opening cylinder 1009 is activated to drive the vertical moving base 1007 to move upward. The vertical moving base 1007 drives the gripper 1011 to move upward. After moving upward a set distance, the mold opening motor 1004 is activated to drive the horizontal moving base 1006 to move horizontally. The horizontal moving base 1006 drives the gripper 1011 to move between the upper and lower support platforms 13 of the casting mold 10. The mold opening cylinder 1009 is activated to drive the gripper 1011 to move upward a second time, raising the upper mold 11 and opening the casting mold 10. After the mold is opened, the mold opening motor 1004 drives the transverse base 1006 to move laterally, placing the upper mold 11 on the rear end of the lower mold 12 (near the cooling station 900). By pushing the hydraulic cylinder 602, the upper mold 11 and the lower mold 12 continue to be conveyed on the mold opening conveyor line 1001.

[0128] Furthermore, during the mold opening process, in order to prevent the wear-resistant alloy ball product from sticking to the mold, the ejector pin 1012 on the ejector plate 1010 extends into the gate channel of the upper mold 11 to eject the product. The entire ejection process is completed simultaneously with the mold opening process. After the mold is opened, the product will fall onto the lower mold 12, be picked up and collected by the robot, and enter the next process.

[0129] Step 7, Three-fold flipping: The flipping mechanism 210 flips the upper mold 11 180 degrees after it is opened, so that the forming surface of the upper mold 11 faces upward.

[0130] Step 8, Cleaning: The upper mold 11 and lower mold 12 are conveyed through the second conveyor line 1201 to the turning mechanism 210 of the cleaning station 1300. The cleaning cylinder 1305 drives the sand cleaning rod 1308 to move down, and in conjunction with the vibration motor 1307, the residual sand core is cleaned. Then the turning mechanism 210 turns over to dump the waste sand. After cleaning, it is conveyed through the sand shooting conveyor line 101 to the sand shooting machine 102 for the next cycle.

[0131] Specifically: The upper mold 11 and lower mold 12 that need cleaning are squeezed into the flipping mechanism 210 of the cleaning station 1300 by the adjacent upper mold 11 or lower mold 12. The cleaning cylinder 1305 is activated to drive the moving frame 1306 to move down. The moving frame 1306 drives the sand cleaning rod 1308 to move down, so that the cleaning brush comes into contact with the sand core. The vibration motor 1307 is activated to drive the sand cleaning rod 1308 to vibrate, causing the sand core to be shaken off. Then, the flipping mechanism 210 drives the upper mold 11 and lower mold 12 to rotate 180 degrees, dumping the waste sand. The cleaned upper mold 11 and lower mold 12 are squeezed into the sand shooting conveyor line 101 by the push cylinder 602 and conveyed to the sand shooting machine 102 for the next cycle.

[0132] It should be noted that the cyclic conveying of the casting mold 10 (pushing one after another, so that the casting mold 10 moves sequentially) is all driven by the push cylinder 602 set in the corresponding position, so that the casting mold 10 can run continuously along the production line.

[0133] Example 3

[0134] like Figure 5 and Figure 6 As shown, the difference between this embodiment and Embodiment 1 is:

[0135] In this embodiment, to achieve more precise hole enlargement alignment and prevent slight deviations in the position of the upper mold 11 conveyed by the sand-shooting conveyor line 101 when it enters the flipping mechanism 210, which could lead to inaccurate hole enlargement of the sand core in the gating channel, a corresponding hole enlargement structure is provided. This hole enlargement structure includes a movable frame 223 connected to the hole enlargement cylinder 222, a mounting plate 226 at the bottom of the movable frame 223, a hole enlargement motor 224 mounted on the mounting plate 226, and an adjusting motor 227 on one side of the hole enlargement motor 224. The adjusting motor 227... A drive gear 228 is connected to the through mounting plate 226 through the output shaft, and a rotating base 229 is rotatably provided at the bottom of the moving frame 223. The top of the rotating base 229 extends out of the moving frame 223, and the outer shaft surface of the rotating base 229 located in the moving frame 223 has a toothed groove. The drive gear 228 meshes with the rotating base 229. Adjusting claws 230 are provided at the four corners of the bottom of the rotating base 229. The adjusting claws 230 are symmetrically arranged, and rollers 231 are rotatably provided on the inner side of the bottom of the adjusting claws 230.

[0136] When enlarging the hole, first activate the enlarging cylinder 222, which moves the moving frame 223 downward to the set position. Then, activate the adjusting motor 227, which drives the drive gear 228 to rotate. The drive gear 228 then drives the rotating base 229 to rotate 90 degrees, moving the adjusting claw 230 from perpendicular to the sand-shooting conveyor line 101 to parallel to it (e.g., ...). Figure 6(As shown), then the expanding cylinder 222 is started, which drives the moving frame 223 to move down. The upper mold 11 is adjusted and aligned by the adjusting claws 230 on both sides. Then the expanding head 225 continues to move down to complete the expanding.

[0137] By adjusting the claw 230 to limit the movement of the upper mold 11 (due to the mutual compression between the upper mold 11 and the lower mold 12, a cumulative movement error will occur over a long distance), the gate channel of the upper mold 11 is precisely aligned with the reaming head 225, thereby improving the accuracy of the reaming and preventing the reaming from affecting the sand core protection of the gate channel.

[0138] Example 4

[0139] like Figure 15 and Figure 16 As shown, the difference between this embodiment and Embodiment 1 is:

[0140] To more effectively collect the waste sand generated at cleaning station 1300 and to prevent the waste sand from affecting the working environment, this embodiment includes a collection structure:

[0141] The collection structure includes a support base 1301 set on the base frame 211 of the flipping mechanism 210 in the cleaning station 1300. A guide roller is set on the support base 1301. A sand-collecting plate 1302 is rolled on top of multiple sets of guide rollers. A sand outlet 1303 is set at one end of the sand-collecting plate 1302. The sand-collecting plate 1302 is arc-shaped and located between the base frame 211 and the rotating shaft 212. The inner side of the arc faces the flipping ring 216. When the flipping mechanism 210 flips, the waste sand in the cleaning process is collected in the sand-collecting plate 1302. Since the sand-collecting plate 1302 is arc-shaped, the sand falling on both sides will converge to the bottom of the sand-collecting plate 1302, avoiding the waste sand from splashing everywhere during the flipping process.

[0142] After the waste sand is dumped, the sand-collecting plate 1302 is pushed manually or mechanically to deflect it, allowing the waste sand collected at the bottom to be poured out from the sand outlet 1303, thus completing the full collection of waste sand.

[0143] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A mold flipping and closing mechanism, characterized in that, The system includes a flipping mechanism (210), which includes a base frame (211). The base frame (211) has rotating shafts (212) symmetrically arranged on both sides of its top. One rotating shaft (212) has guide wheels (213) symmetrically arranged at both ends, and the other rotating shaft (212) has transmission gears (214) symmetrically arranged at both ends. The base frame (211) is equipped with a flipping motor (215), and the output shaft of the flipping motor (215) is connected to the rotating shaft (212) on which the transmission gears (214) are arranged. The guide wheel (213) and the transmission gear (214) on the same side are equipped with a flip ring (216) for transmission, and the transmission gear (214) is meshed with the flip ring (216).

2. The mold flipping and closing mechanism according to claim 1, characterized in that, The guide wheel (213) and the transmission gear (214) on the same side are coplanar.

3. The mold flipping and closing mechanism according to claim 1, characterized in that, The outer side of the flip ring (216) is provided with a mating groove, and limit rollers (20) are provided on both sides of the flip ring (216). The limiting roller (20) on the same side extends into the mating groove of the flipping ring (216) on the same side to restrict the flipping ring (216).

4. The mold flipping and closing mechanism according to claim 3, characterized in that, The two sets of the flip rings (216) are coaxially arranged.

5. A mold flipping and closing mechanism according to claim 4, characterized in that, Two sets of connecting plates (217) are connected between the two sets of flipping rings (216). The two sets of connecting plates (217) are symmetrically arranged about the upper mold (11) or the lower mold (12). Each set of connecting plates (217) has multiple limiting rollers (218) on its inner side, and the multiple limiting rollers (218) are divided into upper and lower sets.

6. A mold flipping and closing mechanism according to claim 5, characterized in that, The distance between the upper and lower sets of limiting rollers (218) on the inner side of the connecting plate (217) is equal to the thickness of the support platform (13) of the upper mold (11) or the lower mold (12).

7. A mold flipping and closing mechanism according to claim 5, characterized in that, The plane formed by the highest point of the lower limiting roller (218) is flush with the conveying plane of the production line.

8. The mold flipping and closing mechanism according to claim 1, characterized in that, A support base (1301) is provided on the base frame (211), and a guide roller is provided on the support base (1301). A sand-collecting plate (1302) is rolled on the top of the guide roller.

9. A mold flipping and closing mechanism according to claim 8, characterized in that, The sand-filled plate (1302) is arranged in an arc shape, and the arc shape is oriented towards the side of the flipping ring (216).

10. A mold flipping and closing mechanism according to claim 9, characterized in that, The sand-collecting plate (1302) has a sand outlet (1303) at one end.

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