Automatic batching and charging equipment

Abstract

The utility model discloses automatic batching and charging equipment, and relates to the technical field of sand core casting. The automatic batching and charging equipment comprises a coarse sand storage tank, a fine sand storage tank, a weighing device, a mixed material conveying device, a sand mixing device and a sand conveying device, the sand conveying device comprises a core sand conveying mechanism and a sand adding mechanism, the sand adding mechanism is slidably mounted on the core sand conveying mechanism, a material receiving station and a discharging station are arranged on the core sand conveying mechanism, a discharging hopper is arranged on the discharging station and connected with the core shooter, and the core shooter is connected with the sand adding mechanism. The core sand conveying mechanism is used for driving the sand adding mechanism to reciprocate between the material receiving station and the discharging station, and the sand adding mechanism is used for conveying a core sand mixture to the discharging hopper. The automatic batching and charging equipment disclosed by the utility model can realize the functions of automatic weighing, automatic batching and automatic charging, reduces the working intensity, improves the production efficiency, can accurately control the addition amount of raw materials, avoids the problem of inaccurate batching caused by human factors, and ensures the quality stability of a sand core.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand core casting technical field especially, relates to a kind of automatic batching feeding equipment. BACKGROUND

[0002] Sand core is the part of casting mould made of core sand, mainly used to form the internal structure of the internal cavity, hole, groove of casting. In the casting process, after liquid metal is injected into the cavity, the sand core will be surrounded by liquid metal, and after the metal solidifies, the sand core is removed, and the casting with the required internal shape is obtained.

[0003] The main raw material of sand core is foundry sand (such as quartz sand), and two kinds of foundry sand with different fineness, namely coarse sand and fine sand, are usually needed. At present, the industry mainly uses core shooting machine to prepare sand core. When preparing, the coarse sand and fine sand need to be proportioned and mixed to prepare a core sand mixture with specific performance, and then the core sand mixture is added to the hopper of the core shooting machine. Start the core shooting machine, and the core sand mixture is shot into the mold under the action of compressed air. After the core shooting is completed, the core shooting machine is closed, and the mold is taken out for demolding, and the sand core is obtained. The core shooting machine can quickly and efficiently produce sand core.

[0004] At present, the core sand mixture is mainly prepared by manual operation. The coarse sand and fine sand are weighed by hand according to the proportion, and then the weighed coarse sand and fine sand are mixed to prepare the core sand mixture. The prepared core sand mixture is added to the core shooting machine by hand. Preparing the core sand mixture by hand and feeding the core shooting machine not only has high work intensity and low efficiency, but also is affected by human factors during the weighing and batching process. Workers may make mistakes due to fatigue, inattention or insufficient skills, such as inaccurate weighing, material confusion and other problems, which affects the quality of the sand core and makes it difficult to ensure the quality stability of the sand core. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of automatic batching feeding equipment, which can realize automatic weighing, automatic batching and automatic feeding to core shooting machine, reduce the work intensity of workers, improve the efficiency of batching and feeding, and accurately control the addition amount of raw materials, avoid inaccurate batching caused by human factors, and ensure the quality stability of sand core.

[0006] To solve the above technical problems, the utility model provides an automatic batching feeding equipment, which comprises a coarse sand storage tank, a fine sand storage tank, a weighing device, a mixing and conveying device, a sand mixing device and a sand feeding device.

[0007] The discharge end of the coarse sand storage tank and the discharge end of the fine sand storage tank are connected with the feeding end of the weighing device respectively, the weighing device is used for weighing the coarse sand discharged from the coarse sand storage tank and the fine sand discharged from the fine sand storage tank; the discharge end of the weighing device is connected with the receiving end of the mixed material conveying device, the discharging end of the mixed material conveying device is connected with the feeding end of the sand mixing device, the mixed material conveying device is used for conveying the weighed coarse sand and fine sand to the sand mixing device, and the sand mixing device is used for mixing the coarse sand and the fine sand to form a core sand mixture.

[0008] The sand feeding device comprises a core sand conveying mechanism and a sand adding mechanism, the sand adding mechanism is slidingly installed on the core sand conveying mechanism, the core sand conveying mechanism is provided with a receiving station and a discharging station, and the position of the discharging end of the sand mixing device corresponds to the position of the receiving station; the core sand conveying mechanism is provided with a discharging hopper at the position corresponding to the discharging station, the discharging end of the discharging hopper is connected with an external core shooter, and the core sand conveying mechanism is used for driving the sand adding mechanism to make reciprocating motion between the receiving station and the discharging station, and the sand adding mechanism is used for transporting the core sand mixture to the discharging hopper.

[0009] As an improvement of the above technical scheme, the core sand conveying mechanism comprises a moving platform and a first driving assembly, the first driving assembly is installed on the moving platform, the moving platform is provided with the receiving station and the discharging station, and the discharging hopper is located at the discharging station and is installed on the bottom of the moving platform.

[0010] The sand adding mechanism is slidingly installed on the top of the moving platform, and the first driving assembly is used for driving the sand adding mechanism to make reciprocating motion on the moving platform.

[0011] As an improvement of the above technical scheme, the moving platform is provided with a plurality of discharging stations, each discharging station is provided with a discharging hopper, and each discharging hopper is connected with a core shooter.

[0012] As an improvement of the above technical scheme, the automatic material blending and feeding equipment further comprises a coarse sand conveying device and a fine sand conveying device.

[0013] The receiving end of the coarse sand conveying device is located below the discharge end of the coarse sand storage tank, the discharging end of the coarse sand conveying device is located above the feeding end of the weighing device, and the coarse sand conveying device is used for conveying the coarse sand discharged from the coarse sand storage tank to the weighing device.

[0014] The material receiving end of the fine sand conveying device is located below the material discharging end of the fine sand storage tank, and the material discharging end of the fine sand conveying device is located above the material receiving end of the weighing device, so that the fine sand discharged from the fine sand storage tank is conveyed to the weighing device.

[0015] As an improvement of the above technical solution, the mixing conveying device comprises a second driving assembly and a material conveying belt, the driving shaft of the second driving assembly is in transmission connection with the material conveying belt, and the second driving assembly is used to drive the material conveying belt to rotate.

[0016] The left and right sides of the material conveying belt are respectively provided with baffles, and the upper surface of the material conveying belt is provided with a plurality of partitions, the partitions are arranged at intervals along the length direction of the material conveying belt, and the left and right sides of the partitions are respectively connected with the two baffles, so that a material conveying groove is formed between the adjacent two partitions.

[0017] As an improvement of the above technical solution, the sand adding mechanism comprises a fixed seat, a charging hopper and a switch control assembly, the fixed seat is slidingly installed on the top of the moving platform, the driving end of the first driving assembly is connected with the fixed seat, and the first driving assembly is used to drive the fixed seat to make reciprocating motion on the moving platform.

[0018] The charging hopper and the switch control assembly are respectively installed on the fixed seat, and the switch control assembly is used to open or shield the discharge port of the charging hopper.

[0019] As an improvement of the above technical solution, the switch control assembly comprises a sliding plate and a switch driving piece, the switch driving piece is fixedly installed on the fixed seat, the sliding plate is slidingly installed on the fixed seat, the telescopic end of the switch driving piece is fixedly connected with the sliding plate, and the switch driving piece is used to drive the sliding plate to make reciprocating motion along the length direction of the fixed seat, so that the sliding plate shields the discharge port of the charging hopper or moves away from the discharge port of the charging hopper.

[0020] As an improvement of the above technical solution, the fixed seat comprises a sliding rail, the sliding rail is fixedly installed on the inner side surface of the fixed seat along the length direction of the fixed seat, the sliding rail is provided with a sliding groove matched with the sliding plate, and the sliding plate is slidingly installed in the sliding groove.

[0021] As an improvement of the above technical solution, the inside of the charging hopper is provided with a distribution plate in the vertical direction, the bottom of the distribution plate protrudes from the bottom surface of the charging hopper, and the inside of the charging hopper is divided into two charging grooves.

[0022] The switch control assembly is provided with two, and the two switch control assemblies are respectively used to open or shield the discharge ports of the two charging grooves.

[0023] The automatic batching and feeding equipment has the advantages that: the automatic batching and feeding equipment can realize automatic weighing, automatic batching and automatic feeding of the core shooting machine, and the feeding work of the core shooting machine is realized automatic control, and manual feeding, batching and feeding are not needed, the working strength of the workers is reduced, the efficiency of batching and feeding is improved, the preparation efficiency of the sand core is improved, the adding amount of the raw materials can be accurately controlled, the problem of inaccurate batching caused by human factors is reduced, and the quality stability of the sand core is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic view of the automatic batching and feeding equipment in one embodiment of the present application;

[0025] Figure 2 is Figure 1 is a partial enlarged view of the automatic batching and feeding equipment shown in the figure;

[0026] Figure 3 is Figure 1 is a partial top view of the automatic batching and feeding equipment shown in the figure;

[0027] Figure 4 is Figure 1 is a front view of the automatic batching and feeding equipment shown in the figure;

[0028] Figure 5 is Figure 4 is an enlarged view of S in the figure;

[0029] Figure 6 is Figure 2 is a structural schematic view of the sand adding mechanism in the automatic batching and feeding equipment; (the left loading chute in the figure is in an open state, and the right loading chute is in a closed state)

[0030] In the figure: coarse sand storage tank 1, fine sand storage tank 2, coarse sand conveying device 3, fine sand conveying device 4, weighing device 5, material mixing and conveying device 6, sand mixing device 7, core shooting machine 9, second driving assembly 61, material conveying belt 62, core sand conveying mechanism 81, sand adding mechanism 82, baffle 621, partition plate 622, fixing seat 821, loading hopper 822, switch control assembly 823, moving platform 811, first driving assembly 812, material receiving station 8111, material unloading station 8112, unloading hopper 8113, material distributing plate 8221, loading chute 8222, sliding plate 8231, switch driving part 8232, sliding rail 8211, sliding groove 82111. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] like Figures 1 to 6 As shown, this embodiment of an automatic batching and feeding device includes a coarse sand storage tank 1, a fine sand storage tank 2, a weighing device 5, a mixing and conveying device 6, a sand mixing device 7, and a sand feeding device.

[0035] The discharge end of the coarse sand storage tank 1 and the discharge end of the fine sand storage tank 2 are respectively connected to the inlet end of the weighing device 5. The weighing device 5 is used to weigh the coarse sand discharged from the coarse sand storage tank 1 and the fine sand discharged from the fine sand storage tank 2. The discharge end of the weighing device 5 is connected to the receiving end of the mixing conveying device 6, and the discharge end of the mixing conveying device 6 is connected to the inlet end of the sand mixing device 7. The mixing conveying device 6 is used to convey the weighed coarse sand and fine sand to the sand mixing device 7, and the sand mixing device 7 is used to mix the coarse sand and fine sand to form a core sand mixture.

[0036] The sand feeding device comprises a core sand conveying mechanism 81 and a sand feeding mechanism 82, the sand feeding mechanism 82 is slidingly installed on the core sand conveying mechanism 81, the core sand conveying mechanism 81 is provided with a material receiving station 8111 and a material discharging station 8112, the position of the discharge end of the sand mixing device 7 corresponds to the position of the material receiving station 811, the core sand conveying mechanism 81 is provided with a discharging hopper 8113 at the position corresponding to the material discharging station 8111, the discharge end of the discharging hopper 8113 is connected with an external core shooter 9, the core sand conveying mechanism 81 is used to drive the sand feeding mechanism 82 to reciprocate between the material receiving station 8111 and the material discharging station 8112, and the sand feeding mechanism 82 is used to transport the core sand mixture to the discharging hopper 813.

[0037] The automatic batching and feeding equipment of the embodiment can realize automatic weighing, automatic batching and automatic feeding of the core shooter 9 through the cooperation of the weighing device 5, the material mixing and conveying device 6, the sand mixing device 7 and the sand feeding device, so that the feeding work of the core shooter 9 is automatically controlled, manual feeding, batching and feeding are not needed, the working strength of the workers is reduced, the efficiency of batching and feeding is improved, the efficiency of sand core preparation is further improved, the automatic control can accurately control the addition amount of raw materials, the problem of inaccurate batching caused by human factors is reduced, and the quality stability of the sand core is ensured.

[0038] Specifically, the working process of the automatic batching and feeding equipment is as follows: first, the weighing device 5 can weigh the specified weight of coarse sand and fine sand, that is, the proportion of the weighed coarse sand and fine sand is fixed, and the weighing device 5 is signal-connected with an external control system, so that the control system can adjust the proportion of coarse sand and fine sand; the coarse sand discharged from the coarse sand storage tank 1 and the fine sand discharged from the fine sand storage tank 2 enter the weighing device 5 in sequence to be weighed to obtain coarse sand and fine sand of specified weight, that is, coarse sand and fine sand of specified proportion; the coarse sand and fine sand of specified proportion are discharged into the material mixing and conveying device 6 in sequence and are conveyed to the sand mixing device 7 through the material mixing and conveying device 6, the coarse sand and fine sand are mixed in the sand mixing device 7 to obtain a core sand mixture. Based on the fact that the position of the discharge end of the sand mixing device 7 corresponds to the position of the material receiving station 811, the core sand conveying mechanism 81 drives the sand feeding mechanism 82 to move to the material receiving station 8111 to receive material, at this time, the core sand mixture in the sand mixing device 7 is discharged into the sand feeding mechanism 82, and then the core sand conveying mechanism 81 drives the sand feeding mechanism 82 to move to the material discharging station 8112 to discharge material, the core sand mixture is discharged from the discharging hopper 8113 to the core shooter 9, and the core shooter 9 is fed.

[0039] Specifically, the weighing device 5 can be a device commonly used in industrial production to realize the weighing effect.

[0040] In an alternative embodiment, the weighing device 5 can be a weighing hopper, which is internally provided with a high-precision weighing sensor, capable of accurately measuring the weight of the material poured, thereby ensuring the quality of the sand core. The weighing hopper can be purchased on the market.

[0041] Preferably, the automatic batching and feeding device further comprises a first auxiliary material adding device, a second auxiliary material adding device and a third auxiliary material adding device (not shown in the figure), the feeding end of the first auxiliary material adding device is in communication with the external resin storage tank, the feeding end of the second auxiliary material adding device is in communication with the external curing agent storage tank, and the feeding end of the third auxiliary material adding device is in communication with the external additive storage tank, and the discharging ends of the first auxiliary material adding device, the second auxiliary material adding device and the third auxiliary material adding device are respectively in communication with the sand mixing device 7. A certain amount of resin can be automatically added to the sand mixing device 7 through the first auxiliary material adding device, a certain amount of curing agent can be automatically added to the sand mixing device 7 through the second auxiliary material adding device, and a certain amount of additive (such as any one or several of drying agent, reinforcing agent, hardening agent, viscosity reducer, waterproofing agent, etc.) can be automatically added to the sand mixing device 7 through the third auxiliary material adding device. The coarse sand, fine sand, resin, curing agent and additive added in a certain proportion are fully mixed in the sand mixing device 7, and a core sand mixture with specific performance can be obtained.

[0042] Specifically, the first auxiliary material adding device, the second auxiliary material adding device and the third auxiliary material adding device are all rotor pumps. The rotor pump can be a screw pump, a gear pump, etc.

[0043] In an embodiment, the core sand conveying mechanism 81 comprises a moving platform 811 and a first driving assembly 812, the first driving assembly 812 is installed on the moving platform 811, the moving platform 811 is provided with the material receiving station 8111 and the material discharging station 8112, the discharging hopper 8113 is located at the material discharging station 8112, and the discharging hopper 8113 is installed at the bottom of the moving platform 811.

[0044] The sand feeding mechanism 82 is slidingly installed on the top of the moving platform 811, and the first driving assembly 812 is used to drive the sand feeding mechanism 82 to make reciprocating motion on the moving platform 811, thereby making the sand feeding mechanism 82 make reciprocating motion between the material receiving station 8111 and the material discharging station 8112, so as to transport the core sand mixture discharged from the sand mixing device 7 to the material discharging station 8112. After the sand feeding mechanism 82 is discharged, the core sand mixture is conveyed to the core shooter 9 through the discharging hopper 8113.

[0045] In an alternative embodiment, the first driving assembly 812 comprises a driving member and a transmission member, the driving end of the driving member is connected with the transmission member, the transmission member is fixedly connected with the sand adding mechanism 82, the transmission member is driven to move by the driving member, and then drives the sand adding mechanism 82 to reciprocate on the moving platform 811, so that the sand adding mechanism 82 moves to the unloading station 8112 to unload after receiving the material at the material receiving station 8111, and then returns to the material receiving station 8111.

[0046] Specifically, the driving member can be a motor, and the transmission member can be a transmission chain.

[0047] In an embodiment, the moving platform 811 is provided with a plurality of unloading stations 8112, each of which is provided with a discharge hopper 8113, and each discharge hopper 8113 is connected with a core shooter 9, so that the automatic material adding and feeding device can simultaneously feed a plurality of core shooters 9, further improve the sand adding efficiency, and further improve the sand core preparation efficiency.

[0048] In an embodiment, the automatic material adding and feeding device further comprises a coarse sand conveying device 3 and a fine sand conveying device 4.

[0049] The material receiving end of the coarse sand conveying device 3 is located below the discharge end of the coarse sand storage tank 1, and the material discharging end of the coarse sand conveying device 3 is located above the material feeding end of the weighing device 5, and the coarse sand conveying device 3 is used to convey the coarse sand discharged from the coarse sand storage tank 1 to the weighing device 5.

[0050] The material receiving end of the fine sand conveying device 4 is located below the discharge end of the fine sand storage tank 2, and the material discharging end of the fine sand conveying device 4 is located above the material feeding end of the weighing device 5, and the fine sand conveying device 4 is used to convey the fine sand discharged from the fine sand storage tank 2 to the weighing device 5. The coarse sand conveying device 3 and the fine sand conveying device 4 can respectively convey the coarse sand and the fine sand to the weighing device 5 for weighing.

[0051] Specifically, when weighing, the weight of coarse sand can be weighed first, at this time, the coarse sand conveying device 3 is started, the fine sand conveying device 4 is paused, the coarse sand discharged from the coarse sand storage tank 1 is conveyed to the weighing device 5 through the coarse sand conveying device 3 for weighing, after the coarse sand of the specified weight is obtained, the coarse sand conveying device 3 stops running to avoid adding too much coarse sand to the weighing device 5, then the discharge end of the weighing device 5 is opened to discharge the coarse sand of the specified weight to the mixing conveying device 6, and the coarse sand is conveyed to the sand mixing device 7 through the mixing conveying device 6. After the coarse sand is discharged, the discharge end of the weighing device 5 is closed, the fine sand conveying device 4 is started, the fine sand discharged from the fine sand storage tank 2 is conveyed to the weighing device 5 through the fine sand conveying device 4 for weighing, after the fine sand of the specified weight is obtained, the fine sand conveying device 4 is paused, the fine sand of the specified weight is discharged to the mixing conveying device 6 through the discharge end of the weighing device 5, and the fine sand is conveyed to the sand mixing device 7 through the mixing conveying device 6 for mixing, and the coarse sand and the fine sand of a certain ratio are mixed in the sand mixing device 7.

[0052] Preferably, the coarse sand conveying device 3 and the fine sand conveying device 4 are both signal connected with an external control system, and the opening and pausing of the coarse sand conveying device 3 and the fine sand conveying device 4 and the conveying speed of the coarse sand conveying device 3 and the fine sand conveying device 4 are controlled by the control system.

[0053] Specifically, the coarse sand conveying device 3 and the fine sand conveying device 4 can be selected as a belt conveyor.

[0054] In an embodiment, the mixing conveying device 6 comprises a second driving assembly 61 and a material conveying belt 62, a driving shaft of the second driving assembly 61 is drivingly connected with the material conveying belt 62, and the second driving assembly 61 is used to drive the material conveying belt 62 to rotate; thereby achieving the effect of conveying materials.

[0055] The left and right sides of the material conveying belt 62 are respectively provided with baffles 621, and the upper surface of the material conveying belt 62 is provided with a plurality of partitions 622, the plurality of partitions 622 are arranged at intervals along the length direction of the material conveying belt 62, and the left and right sides of the partitions 622 are respectively connected with two baffles 621, so that a material conveying groove is formed between adjacent two partitions 622. Since the coarse sand and the fine sand are both powdery materials, the powdery materials are not easy to be conveyed, and are easy to fall outside the mixing conveying device 6 during the conveying process. In this embodiment, the cooperation of the baffles 621 and the partitions 622 forms a plurality of material conveying grooves on the material conveying belt 62, and when the materials are conveyed, the coarse sand and the fine sand are located in the material conveying grooves, which can effectively convey the coarse sand and the fine sand to the sand mixing device 7, ensure that the weight of the coarse sand and the fine sand does not change during the conveying process, i.e., ensure that the proportion of the coarse sand and the fine sand does not change, thereby ensuring the quality of the sand core, and preventing the coarse sand and the fine sand from falling outside the mixing conveying device 6 during the conveying process, which causes the proportion of the coarse sand and the fine sand to change and affects the quality of the sand core.

[0056] Specifically, the second driving assembly 61 can be selected from a motor or the like.

[0057] In an embodiment, the sand loading mechanism 82 comprises a fixed seat 821, a loading hopper 822 and a switch control assembly 823, the fixed seat 821 is slidingly installed on the top of the moving platform 811, the driving end of the first driving assembly 812 is connected with the fixed seat 821, and the first driving assembly 812 is used to drive the fixed seat 821 to make reciprocating motion on the moving platform 811; the loading hopper 822 and the switch control assembly 823 are respectively installed on the fixed seat 821, and the switch control assembly 823 is used to open or shield the discharge port of the loading hopper 822, so as to control the opening or closing of the discharge port of the loading hopper 822 through the switch control assembly 823, so that the discharge port of the loading hopper 822 is closed during the loading and transportation process to prevent material leakage; when the sand loading mechanism 82 reaches the discharging station 8112, the discharge port of the loading hopper 822 is opened through the switch control assembly 823, so that the core sand mixture falls from the discharge port of the loading hopper 822 to the discharging hopper 8113, and is added to the core shooter 9 through the discharging hopper 8113.

[0058] In an embodiment, the switch control assembly 823 comprises a sliding plate 8231 and a switch driving piece 8232, the switch driving piece 8232 is fixedly installed on the fixed seat 821, the sliding plate 8231 is slidingly installed on the fixed seat 821, the telescopic end of the switch driving piece 8232 is fixedly connected with the sliding plate 8231, and the switch driving piece 8232 is used to drive the sliding plate 8231 to make reciprocating motion along the length direction of the fixed seat 821, so that the sliding plate 8231 shields the discharge port of the loading hopper 822, or the sliding plate 8231 is away from the discharge port of the loading hopper 822, so as to make the discharge port of the loading hopper 822 in a closed or open state.

[0059] Specifically, the switch driving piece 8232 can be selected from a pneumatic cylinder.

[0060] In an embodiment, the fixed seat 821 comprises a sliding rail 8211, the sliding rail 8211 is fixedly installed on the inner side of the fixed seat 821 along the length direction of the fixed seat 821, and the sliding rail 8211 is provided with a sliding groove 82111 matched with the sliding plate 8231, the sliding plate 8231 is slidingly installed in the sliding groove 82111, and the sliding rail 8211 can make the sliding plate 8231 slidingly installed in the fixed seat 821.

[0061] Specifically, the left and right sides of the fixing seat 821 are provided with sliding rails 8211, and the left and right sides of the sliding plate 8231 are respectively embedded into the sliding grooves 82111 of the two sliding rails 8211, so that the sliding plate 8231 is slidingly installed on the sliding rails 8211.

[0062] In an embodiment, the inside of the charging hopper 822 is provided with a distribution plate 8221 in the vertical direction, the bottom of the distribution plate 8221 is protruded from the bottom surface of the charging hopper 822, so that the inside of the charging hopper 822 is divided into two charging grooves 8222; the switch control assembly 823 is provided with two, and the two switch control assemblies 823 are respectively used for opening or shielding the discharge ports of the two charging grooves 8222.

[0063] The inside of the charging hopper 822 is divided into two charging grooves 8222 for charging core sand mixture by the distribution plate 8221, and each time only half of the material can be unloaded when each core shooting machine 9 is charged, that is, the charging hopper 822 can charge two core shooting machines 9 each time, so that the charging speed can be further improved.

[0064] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative labor, and these embodiments will fall within the protection scope of the present application.

Claims

1. An automatic dosing and charging apparatus, characterized by, The automatic material mixing and feeding device comprises a coarse sand storage tank, a fine sand storage tank, a weighing device, a mixed material conveying device, a sand mixing device and a sand feeding device. The discharge end of the coarse sand storage tank and the discharge end of the fine sand storage tank are connected with the feeding end of the weighing device respectively, the weighing device is used for weighing the coarse sand discharged from the coarse sand storage tank and the fine sand discharged from the fine sand storage tank, the discharge end of the weighing device is connected with the material receiving end of the mixed material conveying device, the lower end of the mixed material conveying device is connected with the feeding end of the sand mixing device, the mixed material conveying device is used for conveying the weighed coarse sand and fine sand to the sand mixing device, and the sand mixing device is used for mixing the coarse sand and the fine sand to form a core sand mixture. The sand feeding device comprises a core sand conveying mechanism and a sand adding mechanism, the sand adding mechanism is slidingly installed on the core sand conveying mechanism, the core sand conveying mechanism is provided with a material receiving station and a material discharging station, the position of the discharge end of the sand mixing device corresponds to the position of the material receiving station, the core sand conveying mechanism is provided with a discharging hopper at the position corresponding to the material discharging station, the discharge end of the discharging hopper is connected with an external core shooter, the core sand conveying mechanism is used for driving the sand adding mechanism to make reciprocating motion between the material receiving station and the material discharging station, and the sand adding mechanism is used for transporting the core sand mixture to the discharging hopper.

2. The automatic dosing and charging apparatus according to claim 1, characterized in that, The core sand conveying mechanism comprises a moving platform and a first driving assembly, the first driving assembly is installed on the moving platform, the moving platform is provided with the material receiving station and the material discharging station, and the discharging hopper is located at the material discharging station and is installed on the bottom of the moving platform. The sand adding mechanism is slidingly installed on the top of the moving platform, and the first driving assembly is used for driving the sand adding mechanism to make reciprocating motion on the moving platform.

3. The automatic dosing and charging apparatus according to claim 2, characterized in that, The moving platform is provided with a plurality of material discharging stations, each material discharging station is provided with the discharging hopper, and each discharging hopper is connected with a core shooter.

4. The automatic dosing and charging apparatus according to claim 1, characterized by, The automatic material mixing and feeding device further comprises a coarse sand conveying device and a fine sand conveying device. The material receiving end of the coarse sand conveying device is located below the discharge end of the coarse sand storage tank, the lower end of the coarse sand conveying device is located above the feeding end of the weighing device, and the coarse sand conveying device is used for conveying the coarse sand discharged from the coarse sand storage tank to the weighing device. The material receiving end of the fine sand conveying device is located below the discharge end of the fine sand storage tank, the lower end of the fine sand conveying device is located above the feeding end of the weighing device, and the fine sand conveying device is used for conveying the fine sand discharged from the fine sand storage tank to the weighing device.

5. The automatic dosing and charging apparatus according to claim 1, wherein The mixed material conveying device comprises a second driving assembly and a material conveying belt, the driving shaft of the second driving assembly is in transmission connection with the material conveying belt, and the second driving assembly is used for driving the material conveying belt to rotate. The left and right sides of the material conveying belt are respectively provided with baffles, and the upper surface of the material conveying belt is provided with a plurality of partitions, the plurality of partitions are arranged at intervals along the length direction of the material conveying belt, and the left and right sides of the partition are respectively connected with two baffles, so that the adjacent two partitions form a material conveying groove.

6. The automatic ingredient charging apparatus according to claim 2, wherein The sand adding mechanism comprises a fixed seat, a charging hopper and a switch control assembly, the fixed seat is slidingly installed on the top of the moving platform, the driving end of the first driving assembly is connected with the fixed seat, and the first driving assembly is used for driving the fixed seat to make reciprocating motion on the moving platform; The charging hopper and the switch control assembly are respectively installed on the fixed seat, and the switch control assembly is used for opening or shielding the discharge port of the charging hopper.

7. The automatic dosing and charging apparatus according to claim 6, characterized in that, The switch control assembly comprises a sliding plate and a switch driving piece, the switch driving piece is fixedly installed on the fixed seat, the sliding plate is slidingly installed on the fixed seat, the telescopic end of the switch driving piece is fixedly connected with the sliding plate, and the switch driving piece is used for driving the sliding plate to make reciprocating motion along the length direction of the fixed seat, so that the sliding plate shields the discharge port of the charging hopper or the sliding plate is away from the discharge port of the charging hopper.

8. The automatic dosing and charging apparatus according to claim 7, characterized in that, The fixed seat comprises a sliding rail, the sliding rail is fixedly installed on the inner side of the fixed seat along the length direction of the fixed seat, the sliding rail is provided with a sliding groove matched with the sliding plate, and the sliding plate is slidingly installed in the sliding groove.

9. The automatic dosing and charging apparatus according to claim 8, characterized in that, The inside of the charging hopper is provided with a distribution plate in the vertical direction, the bottom of the distribution plate protrudes from the bottom surface of the charging hopper, so that the inside of the charging hopper is divided into two charging grooves; The switch control assembly is provided with two, and the two switch control assemblies are respectively used for opening or shielding the discharge ports of the two charging grooves.

Images