A core-making machine sand addition device

Abstract

The present application discloses a sand adding device for a core making machine, which relates to the technical field of core making machines. The present application includes: a sand bin, at the top of which a feeding port is configured, and further includes: a base, on which an inclined support frame is connected, a conveyor belt is installed in the support frame, a plurality of receiving hoppers are arrayedly connected to the conveyor belt, and a dust-proof frame for wrapping the conveyor belt is connected to the upper side of the support frame; a moving mechanism, a connecting frame is fixedly installed on one side of the top of the support frame, and the moving mechanism includes assembly slide rails respectively connected to the ground and the top of the sand bin. By arranging the assembly slide rails on the ground in the present application, the positions of multiple core making machines can be connected. The overall device is driven to reciprocate by a telescopic wheel set, so as to automatically perform sand adding operations for multiple core making machines in sequence, without the need for manual handling of sand materials back and forth, saving a large amount of manpower and increasing the convenience of the device.

Description

Technical Field

[0001] The present application relates to the technical field of core-making machines, and particularly to a sand adding device for a core-making machine. Background Art

[0002] Core-making machines are a general term for shell core-making machines and injection core-making machines, and are equipment for producing coated sand shell cores using the hot core box process. They are mainly used in the foundry industry to manufacture cores in foundry molds. These cores play a role in supporting and positioning the internal cavities of castings during the casting process, helping to produce castings with complex shapes. Its working process is to complete sand filling and compaction simultaneously, and then harden immediately in the hot core box, reducing labor intensity, being flexible and easy to operate, and easy to master;

[0003] Existing sand adding devices for core-making machines are mostly fixed to the core-making machine body, and their structure consists of a sand bin, a sand suction pipe, and a sand suction pump. A sand adding device needs to be set on each equipment;

[0004] In a large-scale production environment, there are a large number of core-making machines, and the sand adding devices cannot be moved. It is necessary for people to transport sand materials to multiple sand bins, which greatly increases the labor cost back and forth. Moreover, when using the sand suction pump for sand suction operation, the sand materials enter the sand bin with a large impact force, generating a large amount of smoke and dust floating out, polluting the surrounding environment;

[0005] Therefore, the present invention proposes a sand adding device for a core-making machine that can move flexibly between multiple core-making machines and reduce the generation of smoke and dust. Summary of the Invention

[0006] The purpose of the present application is: to solve the problems in the above background art, the present application provides a sand adding device for a core-making machine.

[0007] The present application specifically adopts the following technical solutions to achieve the above purpose:

[0008] A sand adding device for a core-making machine, comprising: a sand bin, the top of the sand bin is configured with a feed inlet, and further comprising:

[0009] A base, an inclined support frame is connected to the base, a conveyor belt is installed in the support frame, a plurality of receiving hoppers are arrayedly connected to the conveyor belt, and a dust-proof frame for wrapping the conveyor belt is connected to the upper side of the support frame;

[0010] A moving mechanism, a connecting frame is fixedly installed on one side of the top of the support frame, the moving mechanism includes assembly slide rails respectively connected to the ground and the top of the sand bin, a telescopic wheel set fixedly connected to the bottom of the base is slidably installed on the assembly slide rail on the ground, and a roller frame arranged on the connecting frame is slidably installed on the assembly slide rail on the sand bin;

[0011] The bottom feeding part includes a sand suction pipe installed on the dust-proof frame and near its bottom, and a circulating material receiving frame installed on the base is communicated with the bottom of the dust-proof frame;

[0012] The dust-proof feeding part is communicated with the top of the dust-proof frame and installed on the connecting frame, and is used for converging sand materials into the feeding port.

[0013] Further, the support frame includes a plurality of inclined frames, the dust-proof frame includes a plurality of n-shaped frames buckled on the inclined frames, and the plurality of inclined frames and n-shaped frames are detachably connected end to end through connecting plates and bolts in pairs. The conveyor belt includes two rotating shafts rotatably installed at both ends of the support frame. A reduction motor connected to one of the rotating shafts is fixedly connected to the support frame. A crawler is sleeved between the two rotating shafts. The receiving hopper is connected to the crawler through an array of bolts.

[0014] Further, both the base and the connecting frame are hinged to the support frame. Arc-shaped rods are hinged to the sides of the base and the connecting frame respectively. The other ends of the arc-shaped rods are slidably inserted with limiting rods. A plurality of limiting holes for inserting the limiting rods are constructed on the side of the support frame.

[0015] Further, the assembly slide rail includes a slide rail frame. One end of the slide rail frame is constructed with a plug-in block and the other end is constructed with a connection groove for inserting the plug-in block. One end of the slide rail frame is constructed with a flipping through groove and the other end is constructed with a buckling groove. A connecting piece is hinged in the flipping through groove. A connecting hole is constructed on the connecting piece. A convex column for tightly inserting the connecting hole is constructed in the buckling groove.

[0016] Further, the telescopic wheel set includes two n-shaped sliding sleeves fixedly connected to the bottom of the base. The n-shaped sliding sleeves are slidably sleeved on the slide rail frame. Arc-shaped sliding grooves are constructed on both sides of the n-shaped sliding sleeves. Rotating rods are movably installed in the two arc-shaped sliding grooves with opposite openings. Moving wheels for abutting against the slide rail frame are rotatably sleeved on the rotating rods. An adjusting piece for driving the two rotating rods to lift is installed on the n-shaped sliding sleeve.

[0017] Further, the adjusting piece includes an adjusting screw rod that penetrates through the base in a threaded manner and rotates through the top of the n-shaped sliding sleeve. A moving block is vertically slidably installed at the top inside the n-shaped sliding sleeve. The adjusting screw rod is rotatably connected to the moving block. Two horizontal sliding grooves are constructed on the moving block. Two lever connecting plates are rotatably connected to the middle of the n-shaped sliding sleeve. One end of the lever connecting plate is constructed with a moving shaft movably installed in the horizontal sliding groove. The other end of the lever connecting plate is hinged to the rotating rod.

[0018] Further, the sand suction pipe includes a sand injection box fixedly connected to the dust-proof frame. One end of the sand injection box located outside the dust-proof frame is fixedly communicated with a steel wire hose. The bottom of the end of the sand injection box located inside the dust-proof frame is provided with a sand injection port. A partition plate is constructed inside the sand injection box above the sand injection port. A column rod is rotatably penetrated and installed on the partition plate. One end of the column rod is fixedly connected with an aluminum-plastic rod inserted into the steel wire hose. A spring steel sheet arranged in a spiral manner is connected to the aluminum-plastic rod.

[0019] Further, the circulating material receiving frame includes a frame body fixedly connected to the base. An arc-shaped channel is constructed inside the frame body, one end of which is communicated with the dust-proof frame, and the other end of the arc-shaped channel is provided with a scraping port for receiving the bucket to turn over and pass through.

[0020] Further, the dust-proof feeding member includes a funnel frame fixedly connected to the connecting frame. A sand adding pipe frame is constructed at the bottom of the funnel frame and is arranged towards the feeding port. A filter box is constructed inside the top of the funnel frame. A suction fan communicated with the filter box is fixedly connected to the outside of the funnel frame. An arc-shaped cover frame for buckling the funnel frame is hinged to the top of the dust-proof frame.

[0021] Further, it further includes a driving member for driving the column rod and the suction fan to rotate. The driving member includes an auxiliary shaft one rotatably installed on the connecting frame. The auxiliary shaft one and the shaft rod of the suction fan are connected by bevel gears in a transmission manner. The auxiliary shaft one and the reduction motor are connected by belt pulleys in a transmission manner. An auxiliary shaft two is rotatably installed on the side surface of the support frame. The auxiliary shaft two and one of the rotating shafts are connected by bevel gears in a transmission manner. The auxiliary shaft two and the column rod are connected by belt pulleys in a transmission manner.

[0022] The beneficial effects of the present application are as follows:

[0023] 1. An assembly slide rail is arranged on the ground in the present application, and multiple core-making machines can be connected together. The telescopic wheel set on the base is used to drive the whole device to reciprocate, so as to automatically perform sand adding operations for multiple core-making machines in sequence, without the need for manual back-and-forth handling of sand materials, saving a large amount of manpower and increasing the convenience of the device.

[0024] 2. In the present application, the traditional sand suction pump is replaced by a sand suction pipe, and the sand suction pipe is replaced by a conveyor belt and a receiving bucket. The sand suction pipe is used to perform sand injection operations for the receiving bucket, eliminate the impact force generated by sand suction at the receiving bucket, and use the circulating material receiving frame to block and recycle the dust. Finally, the sand material is poured into the sand bin by gradually turning over the receiving bucket, so as to reduce the impact of the sand material on the sand bin, and further reduce the generation of dust, ensuring the safety of the surrounding environment. Description of the Drawings

[0025] Figure 1 is a three-dimensional structure diagram of the present application;

[0026] Figure 2 is the semi-sectional view of the three-dimensional structure of this application;

[0027] Figure 3 is the partial three-dimensional structure diagram of this application;

[0028] Figure 4 is the semi-sectional view of the three-dimensional structure of the base of this application;

[0029] Figure 5 is the partial three-dimensional structure diagram of the telescopic wheel set of this application;

[0030] Figure 6 is the semi-sectional view of the three-dimensional structure of the sand suction pipe of this application;

[0031] Figure 7 is the semi-sectional view of the three-dimensional structure of the circulating material receiving frame of this application;

[0032] Figure 8 is the three-dimensional structure diagram of the dust-proof feeding part of this application;

[0033] Reference numerals: 1, sand bin; 101, feeding port; 2, base; 201, arc rod; 202, limiting rod; 203, limiting hole; 3, support frame; 301, connecting frame; 302, inclined frame; 303, connecting plate; 4, conveyor belt; 401, rotating shaft; 402, reduction motor; 403, crawler; 5, receiving hopper; 6, dust-proof frame; 601, n-shaped frame; 7, moving mechanism; 701, assembly slide rail; 7011, slide rail frame; 7012, plug-in block; 7013, connecting groove; 7014, through groove; 7015, buckling groove; 7016, connecting piece; 7017, connecting hole; 7018, convex column; 702, telescopic wheel set; 7021, n-shaped sliding sleeve; 7022, arc-shaped sliding groove; 7023, rotating rod; 7024, moving wheel; 7025, adjusting part; 70251, adjusting screw; 70252, moving block; 70253, horizontal sliding groove; 70254, lever connecting plate; 70255, moving shaft; 703, roller frame; 8, bottom feeding part; 801, sand suction pipe; 8011, sand injection box; 8012, steel wire hose; 8013, sand injection port; 8014, spacer; 8015, column rod; 8016, aluminum-plastic rod; 8017, spring steel sheet; 802, circulating material receiving frame; 8021, frame body; 8022, arc-shaped channel; 8023, scraping port; 9, dust-proof feeding part; 901, funnel frame; 902, sand adding pipe frame; 903, filter box; 904, exhaust fan; 905, arc-shaped cover frame; 10, driving part; 1001, auxiliary shaft one; 1002, auxiliary shaft two. Detailed implementation manners

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application.

[0035] As Figures 1 - 7 shown, a sand adding device for a core making machine proposed in an embodiment of this application includes: a sand bin 1. An inlet 101 is formed at the top of the sand bin 1. The sand bin 1 is a sand storage component at the top of an existing core making machine, and the hole originally connected to the sand suction pipe is replaced with the inlet 101. It also includes:

[0036] A base 2. A support frame 3 inclinedly arranged is connected to the base 2. A conveyor belt 4 is installed in the support frame 3. A plurality of receiving hoppers 5 are arrayedly connected to the conveyor belt 4. A dust-proof frame 6 for wrapping the conveyor belt 4 is connected to the upper side of the support frame 3. When the conveyor belt 4 operates, it will drive a plurality of receiving hoppers 5 to rise in sequence until the receiving hoppers 5 are transported to the highest point of the support frame 3 for dumping operations. Since the support frame 3 is inclinedly arranged, the sand material will gradually slide down when the receiving hopper 5 is flipped, and the impact force generated by the sliding is small, which can effectively reduce the generation of smoke and dust. The setting of the dust-proof frame 6 is mainly used to block the overflow of smoke and dust during transportation and increase safety;

[0037] A moving mechanism 7. A connecting frame 301 is fixedly installed on one side of the top of the support frame 3. The moving mechanism 7 includes assembly slide rails 701 respectively connected to the ground and the top of the sand bin 1. A telescopic wheel set 702 fixedly connected to the bottom of the base 2 is slidably installed on the assembly slide rail 701 on the ground. A roller frame 703 arranged on the connecting frame 301 is slidably installed on the assembly slide rail 701 on the sand bin 1. The number of the assembly slide rails 701 is multiple and two are in a group, which are respectively connected to the ground and the top of the sand bin 1 and are used to connect the positions of multiple core making machines. By laying the assembly slide rails 701 beside multiple core making machines, the device can be limited between the two assembly slide rails 701 by using the telescopic wheel set 702 and the roller frame 703, so that the whole device is slidably arranged between multiple core making machines, thereby ensuring that the device can be positioned and moved between multiple core making machines and automatically add sand to multiple core making machines in sequence. Such a structural setting greatly saves equipment costs compared with traditional independent sand adding mechanisms;

[0038] The bottom feeding part 8 includes a sand suction pipe 801 installed on the dust-proof frame 6 and near its bottom. A circulating material receiving frame 802 installed on the base 2 is connected to the bottom of the dust-proof frame 6. The sand suction pipe 801 is used to replace the original sand pumping pump. It can pump sand into the dust-proof frame 6 and feed the receiving hopper 5. As the conveyor belt 4 moves, the sand suction pipe 801 can continuously feed multiple receiving hoppers 5. During this period, the dust generated by the sand and the splashed sand will be blocked and received by the circulating material receiving frame 802. Then, by using the cyclic operation of the receiving hopper 5, when it passes through the circulating material receiving frame 802, the sand deposited in this part can be re-dug and utilized. On the one hand, it avoids the waste of sand and saves resources. On the other hand, the impact force that should have been generated in the sand bin 1 can be consumed at this part. The sand bin 1 only bears the sand that slides down from the receiving hopper 5. Compared with the impact force generated by the sand pumping pump, the impact force of the sliding sand is smaller, which can effectively reduce the generation of dust and protect the surrounding environment;

[0039] The dust-proof feeding part 9 is connected to the top of the dust-proof frame 6 and installed on the connecting frame 301. It is used to gather sand and enter the feeding port 101. The dust-proof feeding part 9 is used to wrap the part where the receiving hopper 5 flips, and can further receive and guide the sand, thereby reducing the sand impact force and reducing the generation of dust;

[0040] This application only requires a single device to perform sequential sand feeding operations on multiple core-making machines, eliminating the use of sand pumping pumps on multiple core-making machines, saving equipment costs, and also eliminating the need for manual handling of sand to the vicinity of different core-making machines, saving a large amount of labor and increasing convenience. This application also uses the conveyor belt 4, the receiving hopper 5, the sand suction pipe 801, the circulating material receiving frame 802, and the dust-proof feeding part 9 to replace the sand pumping pump and the sand pumping pipe on the original equipment. The impact force of the original sand pumping pump on the sand bin 1 can be transferred to the receiving hopper 5. The dust generated by the impact force is recycled by the circulating material receiving frame 802 to save resources. At the same time, the sand bin 1 is changed to bear the impact force of the sand sliding down from the receiving hopper 5. During this period, the impact force is further weakened by the dust-proof feeding part 9 to minimize the generation of dust as much as possible, increase safety, and protect the surrounding environment.

[0041] Such as Figures 1 - 3As shown, in some embodiments, the support frame 3 includes a plurality of inclined frames 302, the dustproof frame 6 includes a plurality of n-type frames 601 buckled on the inclined frames 302, and the plurality of inclined frames 302 and the n-type frames 601 are detachably connected end to end through connecting plates 303 and bolts. The inclined frames 302 and the n-type frames 601 can be detached by using the connecting plates 303 and bolts, so as to adjust the overall length of the device, so as to adapt to the sand adding operation of equipment of different sizes and increase the flexibility and adaptability of the device. The conveyor belt 4 includes two rotating shafts 401 rotatably mounted at both ends of the support frame 3, a reduction motor 402 connected to one of the rotating shafts 401 is fixedly connected to the support frame 3, a crawler 403 is sleeved between the two rotating shafts 401, and the receiving bucket 5 is connected to the crawler 403 through a bolt array. It should be noted that the reduction motor 402 is mounted on the side of one of the inclined frames 302, and the two rotating shafts 401 are respectively rotatably connected to the ends of the two inclined frames 302 at the end sides, and the crawler 403 can adjust the length as needed.

[0042] like Figure 1 , Figure 4 and Figure 8 As shown, in some embodiments, the base 2 and the connecting frame 301 are both hingedly connected to the support frame 3, and the base 2 and the connecting frame 301 are both hingedly connected to the sides of the arc rod 201, and the other end of the arc rod 201 is slidably inserted with a limit rod 202, and the side of the support frame 3 is constructed with a plurality of limit holes 203 for inserting with the limit rod 202. It should be noted that the telescopic wheel group 702 has a telescopic characteristic. When it needs to be installed on the assembly slide rail 701, the telescopic wheel group 702 is retracted, and it can be limited in the assembly The slide rail 701 is prevented from being easily detached to ensure safety. When the device needs to be repaired or replaced, the telescopic wheel group 702 can be extended to detach it from the assembled slide rail 701, and then the roller frame 703 can be detached. At this time, the limit rod 202 can be replaced with a different limit hole 203 to adjust the flip angle of the base 2 and the connecting frame 301, so that it can support the support frame 3 horizontally on the ground, so as to facilitate personnel to push the entire device for transfer, thereby increasing the flexibility and convenience of the device.

[0043] like Figure 4 and Figure 8As shown, in some embodiments, the assembled slide rail 701 includes a slide rail frame 7011. One end of the slide rail frame 7011 is configured with a plug-in block 7012, and the other end is configured with a connection slot 7013 for plugging and fitting with the plug-in block 7012. One end of the slide rail frame 7011 is configured with a flipping through slot 7014, and the other end is configured with a buckling slot 7015. A connecting piece 7016 is hinged in the flipping through slot 7014. A connection hole 7017 is configured on the connecting piece 7016. A convex column 7018 for tightly plugging the connection hole 7017 is configured in the buckling slot 7015. When an additional core-making machine needs to be added, an additional slide rail frame 7011 can be inserted into the connection slot 7013 of the original slide rail frame 7011 by using the plug-in block 7012, so as to perform sliding limit on the movement between the slide rail frames 7011. Then, by flipping the connecting piece 7016, it is buckled into the buckling slot 7015 of another slide rail frame 7011, and the convex column 7018 is tightly inserted into the connection hole 7017, so as to fix the two slide rail frames 7011. This can not only ensure the stability after connection, but also facilitate disconnecting the connection. There is no need for bolt connection, and the operation is more convenient.

[0044] As Figures 4 - 5 shown, in some embodiments, the telescopic wheel set 702 includes two n-shaped sliding sleeves 7021 fixedly connected to the bottom of the base 2. The n-shaped sliding sleeves 7021 are slidably sleeved on the slide rail frame 7011. Arc-shaped sliding grooves 7022 are configured on both sides of the n-shaped sliding sleeves 7021. A rotating rod 7023 is movably installed in the two arc-shaped sliding grooves 7022 with opposite openings. Moving wheels 7024 for abutting against the slide rail frame 7011 are rotatably sleeved on the rotating rods 7023. An adjusting member 7025 for driving the two rotating rods 7023 to lift is installed on the n-shaped sliding sleeves 7021. When the telescopic wheel set 702 needs to be slidably limited to the slide rail frame 7011, the adjusting member 7025 can be used to adjust the height of the rotating rod 7023 in the arc-shaped sliding groove 7022, so as to retract the moving wheel 7024 into the interior of the n-shaped sliding sleeve 7021, so that the n-shaped sliding sleeve 7021 can be sleeved on the slide rail frame 7011, avoiding the device from detaching and increasing safety. When the device needs to be disassembled for maintenance, the adjusting member 7025 can be used to move the moving wheel 7024 to protrude from the bottom of the n-shaped sliding sleeve 7021, so as to lift the n-shaped sliding sleeve 7021 to the upper side of the slide rail frame 7011, facilitating the removal of the device from the assembled slide rail 701 and increasing convenience. It should also be noted that the rotating rod 7023 can be driven by a motor, so that the telescopic wheel set 702 drives the whole device to move on the slide rail frame 7011.

[0045] As Figures 4 - 5As shown, in some embodiments, the adjusting member 7025 includes an adjusting screw rod 70251 that passes through the base 2 in a threaded manner and rotates through the top of the n-shaped sliding sleeve 7021. A moving block 70252 is vertically slidably mounted on the inner top of the n-shaped sliding sleeve 7021. The adjusting screw rod 70251 is rotatably connected to the moving block 70252. Two horizontal sliding grooves 70253 are formed on the moving block 70252. Two lever connecting plates 70254 are rotatably connected to the middle of the n-shaped sliding sleeve 7021. One end of the lever connecting plate 70254 is formed with a moving shaft 70255 that is movably installed in the horizontal sliding groove 70253. The other end of the lever connecting plate 70254 is hinged to the rotating rod 7023. When the adjusting screw rod 70251 rotates, it can be in threaded cooperation with the base 2, thereby driving the moving block 70252 to move up and down, and then driving one end of the two lever connecting plates 70254 to rise or fall together with the moving block 70252. Furthermore, the rotating rod 7023 at the other end of the lever connecting plate 70254 moves along the arc-shaped sliding groove 7022, so as to change the height of the moving wheel 7024 in the n-shaped sliding sleeve 7021.

[0046] As Figure 6 shown, in some embodiments, the sand suction pipe 801 includes a sand injection box 8011 fixedly connected to the dust-proof frame 6. One end of the sand injection box 8011 located outside the dust-proof frame 6 is fixedly communicated with a steel wire hose 8012. A sand injection port 8013 is formed at the bottom of one end of the sand injection box 8011 located inside the dust-proof frame 6. A partition plate 8014 is formed in the sand injection box 8011 above the sand injection port 8013. A column rod 8015 is rotatably installed through the partition plate 8014. One end of the column rod 8015 is fixedly connected to an aluminum-plastic rod 8016 inserted into the steel wire hose 8012. A helically arranged spring steel sheet 8017 is connected to the aluminum-plastic rod 8016. It should be noted that although the steel wire hose 8012 can be bent, its inner diameter will not change too much. Therefore, the rotation of the column rod 8015 can be used to drive the aluminum-plastic rod 8016 to rotate in the bent steel wire hose 8012, thereby driving the spring steel sheet 8017 to rotate synchronously. While rotating, the spring steel sheet 8017 can gradually lift and move the accumulated sand material, so as to realize the transfer operation of the sand material. Compared with the traditional sand pump, this structure can extend a longer distance and still effectively transfer the sand material. One end of the steel wire hose 8012 can be directly inserted into the sand pile, and then the device can be transferred by using the base 2 to perform the feeding operation on different core-making machines in turn, without having to carry the sand material, saving manpower.

[0047] As Figure 7As shown, in some embodiments, the circulating material receiving frame 802 includes a frame body 8021 fixedly connected to the base 2. An arc-shaped channel 8022 is formed inside the frame body 8021, one end of which communicates with the dust-proof frame 6. The other end of the arc-shaped channel 8022 is provided with a scraping port 8023 for receiving the turning-over of the hopper 5. It should be noted that a part of the arc of the arc-shaped channel 8022 is arranged along the turning route of the hopper 5. When the hopper 5 turns over from below, some of the sand materials accumulated in the frame body 8021 can be dug out, so as to utilize the sand materials, avoid the sand materials falling on the ground and being polluted, and ensure the utilization rate of resources.

[0048] As Figure 8 shown, in some embodiments, the dust-proof feeding member 9 includes a funnel frame 901 fixedly connected to the connecting frame 301. A sand adding pipe frame 902 is formed at the bottom of the funnel frame 901 and is oriented towards the feeding port 101. A filter box 903 is formed inside the top of the funnel frame 901. A suction fan 904 communicating with the filter box 903 is fixedly connected to the outside of the funnel frame 901. An arc-shaped cover frame 905 for buckling the funnel frame 901 is hinged to the top of the dust-proof frame 6. Among them, the funnel frame 901 serves as an additional sand material guiding structure, one end of which is connected to the turning part of the hopper 5. When the hopper 5 turns over and dumps the sand materials, the sand materials therein will slide to one side in the funnel frame 901, and then the funnel frame 901 is used to make the sand materials flow into the lower feeding port 101. The filter box 903 and the suction fan 904 are provided to guide a small amount of floating dust and avoid its overflow to the outside. The arc-shaped cover frame 905 also serves the same purpose. Triple dust prevention can more effectively avoid the overflow of dust, protect the surrounding environment, and increase the safety of the device.

[0049] As Figure 1 、 Figure 6 and Figure 8 shown, in some embodiments, it further includes a driving member 10 for driving the rotation of the column rod 8015 and the suction fan 904. The driving member 10 includes a first auxiliary shaft 1001 rotatably installed on the connecting frame 301. The first auxiliary shaft 1001 is connected to the shaft rod of the suction fan 904 through bevel gear transmission. The first auxiliary shaft 1001 is connected to the reduction motor 402 through pulley transmission. A second auxiliary shaft 1002 is rotatably installed on the side of the support frame 3. The second auxiliary shaft 1002 is connected to one of the rotating shafts 401 through bevel gear transmission. The second auxiliary shaft 1002 is connected to the column rod 8015 through pulley transmission. This structure is mainly used to distribute a part of the driving force of the reduction motor 402 on the conveyor belt 4 to the suction fan 904 and the sand suction pipe 801, so as to save the use of driving equipment and save the equipment cost.

[0050] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sand adding device for a core making machine, comprising: A sand bin (1), wherein the top of the sand bin (1) is provided with a feed inlet (101), characterized in that it further comprises: A base (2), the base (2) being connected to an inclined support frame (3), a conveyor belt (4) being installed in the support frame (3), a plurality of receiving buckets (5) being connected in an array on the conveyor belt (4), and a dustproof frame (6) for wrapping the conveyor belt (4) being connected to the upper side of the support frame (3); A moving mechanism (7), wherein a connecting frame (301) is fixedly mounted on one side of the top of the support frame (3), and the moving mechanism (7) comprises an assembly slide rail (701) respectively connected to the ground and the top of the sand bin (1), a telescopic wheel group (702) fixedly connected to the bottom of the base (2) is slidably mounted on the assembly slide rail (701) located on the ground, and a roller frame (703) arranged on the connecting frame (301) is slidably mounted on the assembly slide rail (701) located on the sand bin (1); The bottom feeding member (8) comprises a sand suction pipe (801) mounted on the dustproof frame (6) and arranged near the bottom thereof, wherein the bottom of the dustproof frame (6) is connected to a circulating material receiving frame (802) mounted on the base (2); A dust-proof feeding member (9), connected to the top of the dust-proof frame (6) and mounted on the connecting frame (301), for gathering sand material into the feeding port (101); The sand suction pipe (801) comprises a sand injection box (8011) fixedly connected to the dustproof frame (6); one end of the sand injection box (8011) located outside the dustproof frame (6) is fixedly connected to a steel wire hose (8012); one end of the sand injection box (8011) located inside the dustproof frame (6) is configured with a sand injection port (8013); a partition plate (8014) located above the sand injection port (8013) is configured inside the sand injection box (8011); a column rod (8015) is rotatably installed through the partition plate (8014); one end of the column rod (8015) is fixedly connected to an aluminum-plastic rod (8016) inserted into the steel wire hose (8012); and a spirally arranged spring steel sheet (8017) is connected to the aluminum-plastic rod (8016); The circulating material receiving frame (802) comprises a frame body (8021) fixedly connected to the base (2), wherein the frame body (8021) is provided with an arc-shaped channel (8022) at one end of which is connected to the dustproof frame (6), and the other end of the arc-shaped channel (8022) is provided with a scraping opening (8023) for receiving the material that the bucket (5) flips over.

2. A core making machine sand adding device according to claim 1, characterized in that: The support frame (3) comprises a plurality of inclined frames (302); the dustproof frame (6) comprises a plurality of n-type frames (601) buckled on the inclined frames (302); the plurality of inclined frames (302) and the n-type frames (601) are detachably connected end to end via connecting plates (303) and bolts; the conveyor belt (4) comprises two rotating shafts (401) rotatably mounted at both ends of the support frame (3); a reduction motor (402) connected to one of the rotating shafts (401) is fixedly connected to the support frame (3); a crawler belt (403) is sleeved between the two rotating shafts (401); and the receiving bucket (5) is connected to the crawler belt (403) via a bolt array.

3. A core making machine sand adding device according to claim 1, characterized in that: The base (2) and the connecting frame (301) are both hingedly connected to the support frame (3); arc-shaped rods (201) are hingedly connected to the sides of the base (2) and the connecting frame (301); a limiting rod (202) is slidably inserted at the other end of the arc-shaped rod (201); and a plurality of limiting holes (203) for inserting into the limiting rods (202) are constructed on the side of the support frame (3).

4. A core making machine sand adding device according to claim 1, characterized in that: The assembly slide rail (701) comprises a slide rail frame (7011), one end of the slide rail frame (7011) is configured with a plug-in block (7012) and the other end is configured with a connecting groove (7013) for plugging with the plug-in block (7012), one end of the slide rail frame (7011) is configured with a flip through groove (7014) and the other end is configured with a buckle groove (7015), a connecting piece (7016) is hingedly connected in the flip through groove (7014), a connecting hole (7017) is configured on the connecting piece (7016), and a convex column (7018) for tightly plugging with the connecting hole (7017) is configured in the buckle groove (7015).

5. A core making machine sand adding device according to claim 4, characterized in that: The telescopic wheel group (702) comprises two N-shaped sliding sleeves (7021) fixedly connected to the bottom of the base (2); the N-shaped sliding sleeves (7021) are slidingly sleeved on the slide rail frame (7011); arc-shaped sliding grooves (7022) are constructed on both sides of the N-shaped sliding sleeve (7021); rotating rods (7023) are movably installed in the two openings of the arc-shaped sliding grooves (7022) arranged opposite to each other; the rotating rods (7023) are rotatably sleeved with moving wheels (7024) for contacting the slide rail frame (7011); and the N-shaped sliding sleeve (7021) is installed with an adjusting member (7025) for driving the two rotating rods (7023) to move up and down.

6. A sand adding device for a core making machine according to claim 5, characterized in that: The adjusting member (7025) comprises an adjusting screw (70251) threadedly penetrating the base (2) and rotatably penetrating the top of the n-type sliding sleeve (7021); a moving block (70252) is vertically slidably installed in the top of the n-type sliding sleeve (7021); the adjusting screw (70251) is rotatably connected to the moving block (70252); two horizontal sliding grooves (70253) are constructed on the moving block (70252); two lever connecting plates (70254) are rotatably connected to the middle of the n-type sliding sleeve (7021); one end of the lever connecting plate (70254) is constructed with a moving shaft (70255) movably installed in the horizontal sliding groove (70253); and the other end of the lever connecting plate (70254) is hinged to the rotating rod (7023).

7. A core making machine sand adding device according to claim 2, characterized in that: The dustproof feeding member (9) comprises a funnel frame (901) fixedly connected to the connecting frame (301); the bottom of the funnel frame (901) is provided with a sand adding pipe frame (902) arranged towards the feeding port (101); the inner side of the top of the funnel frame (901) is provided with a filter box (903); the outer side of the funnel frame (901) is fixedly connected with an exhaust fan (904) connected to the filter box (903); and the top of the dustproof frame (6) is hinged with an arc-shaped cover frame (905) for buckling the funnel frame (901).

8. A sand adding device for a core making machine according to claim 7, characterized in that: It also includes a driving member (10) for driving the column (8015) and the exhaust fan (904) to rotate, the driving member (10) includes an auxiliary shaft one (1001) rotatably mounted on the connecting frame (301), the auxiliary shaft one (1001) and the shaft of the exhaust fan (904) are connected via a bevel gear transmission, the auxiliary shaft one (1001) and the reduction motor (402) are connected via a pulley transmission, an auxiliary shaft two (1002) is rotatably mounted on the side of the support frame (3), the auxiliary shaft two (1002) and one of the rotating shafts (401) are connected via a bevel gear transmission, and the auxiliary shaft two (1002) and the column (8015) are connected via a pulley transmission.

Images