Abrasive feeding device

Abstract

The abrasive feeding device comprises a material frame and a conveying mechanism, the material frame is used for loading abrasives, and the conveying mechanism is used for receiving the abrasives output by the material frame and can convey the abrasives to the downstream; the conveying speed of the conveying mechanism is controllable, the conveying mechanism can stably receive the grinding materials and continuously convey the grinding materials to downstream equipment according to the preset speed so that the downstream equipment can reliably and safely receive the grinding materials, and after the downstream equipment is full of the materials, the conveying mechanism stops working, and feeding can be finished; by means of the abrasive feeding device, automatic conveying of abrasives can be conveniently, rapidly and accurately achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of workpiece grinding, and in particular to a grinding material feeding device. BACKGROUND

[0002] Grinding material plays an important role in workpiece grinding, and is one of the key factors that determine grinding efficiency and surface finish. In traditional grinding equipment, the preparation and feeding of grinding material is an indispensable step, and workers often manually feed the grinding material into the grinding machine before formal grinding operation. This step not only consumes time and effort, but also greatly increases the labor intensity of workers, especially when facing large grinding machines, as they handle more extensive projects and deal with more complex grinding requirements, usually with larger working cavity volume. This means that the amount of grinding material needed to be fed before each grinding operation also increases accordingly, and workers need to spend more time and effort to complete the feeding work. In addition, due to the depth and width of the working cavity, the difficulty and danger of manual feeding also increase.

[0003] Therefore, the traditional manual feeding method not only affects the overall efficiency of the grinding operation, but also poses a threat to the safety of workers, and it is urgent to optimize this process through technological innovation. SUMMARY

[0004] The purpose of the present application is to overcome the deficiencies in the prior art and provide a grinding material feeding device.

[0005] To achieve the above technical purpose, the present application provides a grinding material feeding device, comprising: a material frame for loading grinding material; a conveying mechanism for receiving the grinding material output by the material frame and capable of conveying the grinding material downstream; wherein the top of the material frame is provided with a feeding port through which the grinding material can be fed into the material frame; the bottom of the material frame is provided with a discharging port through which the grinding material can leave the material frame and enter the conveying mechanism.

[0006] Further, the material frame comprises: a storage part arranged in the shape of a square frame; a guide part arranged at the lower end of the storage part and arranged in the shape of a tapered inverted cone; wherein the storage part is connected to the guide part; the top end of the storage part is open to form the feeding port; the bottom end of the guide part is open to form the discharging port.

[0007] Further, a valve is arranged on the discharging port, and the valve has an open state and a closed state; when the valve is in the open state, the grinding material in the material frame can pass through the discharging port; when the valve is in the closed state, the grinding material in the material frame cannot pass through the discharging port.

[0008] Further, the valve comprises: a first cover and a second cover, the first cover and the second cover are symmetrically arranged, both are rotatably arranged on the material frame and can cooperate to shield the discharge port; an opening and closing driving element is used to drive the first cover and the second cover to rotate synchronously; when discharging is needed, the opening and closing driving element drives the first cover and the second cover to rotate away from each other, and the valve enters an open state; when discharging is not needed, the opening and closing driving element drives the first cover and the second cover to rotate towards each other, and when the two covers abut, they can shield the discharge port, so that the valve enters a closed state; wherein the first cover and the second cover each comprise: a rotating shaft arranged on the material frame and penetrating the discharge port; two groups of connecting pieces are arranged on the rotating shaft in an axial direction, and any connecting piece is located outside the material frame; a bottom piece is arranged in a circular arc shape and connected with the two groups of connecting pieces, and is located below the discharge port and used to shield the discharge port; when the valve is in the closed state, the bottom pieces of the first cover and the second cover abut, and the two groups of bottom pieces form an arc-shaped cover and can hold the discharge port in a bowl shape.

[0009] Further, the rotating shaft is rotatably arranged on the material frame, and the connecting piece is fixedly connected with the rotating shaft; the opening and closing driving element comprises: a driving cylinder connected with one of the connecting pieces through a rotating joint; a first gear arranged on the rotating shaft of the first cover; a second gear arranged on the rotating shaft of the second cover, and the first gear is engaged with the second gear; when discharging is needed, the driving cylinder is started, one of the rotating shafts rotates, and the first gear and the second gear are driven to make the first cover and the second cover rotate away from each other synchronously.

[0010] Further, at least one group of material distribution pointed tops are arranged in the material frame, and the pointed top is composed of two groups of inclined pieces whose top parts abut and bottom parts are away from each other.

[0011] Further, at least two discharge ports are arranged at the bottom of the material frame, and any two adjacent discharge ports are bounded by one group of material distribution pointed tops.

[0012] Further, the abrasive material feeding device further comprises a base, the base is used to support the material frame and make the material frame arranged directly above the material receiving end of the conveying mechanism; the base comprises: a support frame connected with the material frame and used to fix the material frame; a plurality of supporting legs used to support the support frame; a plurality of reinforcing ribs arranged between any two adjacent supporting legs; and at least one partition beam arranged between any two adjacent discharge ports, and the partition beam transversely connects two reinforcing ribs.

[0013] Further, a material level meter is arranged in the material frame, and the material level meter is used to monitor the storage condition in the material frame.

[0014] Further, the conveying mechanism comprises a conveying support frame extending upwardly and obliquely, a plurality of belt pulleys rotatably arranged on the conveying support frame and spaced along the extending direction of the conveying support frame, and a conveying belt wound around the plurality of belt pulleys.

[0015] The application provides an abrasive material feeding device, which comprises a material frame and a conveying mechanism, the material frame is used for loading abrasive material, and the conveying mechanism is used for receiving the abrasive material output by the material frame and capable of conveying the abrasive material downstream; the conveying speed of the conveying mechanism is controllable, the conveying mechanism can stably receive the abrasive material and continuously convey the abrasive material to downstream equipment at a preset speed, so that the downstream equipment can reliably and safely receive the abrasive material, and the conveying mechanism stops working after the downstream equipment is full, and the feeding is ended; the abrasive material feeding device provided by the application can conveniently, quickly and accurately realize automatic conveying of the abrasive material. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic view of an abrasive material feeding device provided by the application;

[0017] Figure 2 FIG. 2 is a structural schematic view of another direction of the valve shown in FIG. 1; Figure 1 FIG. 3 is an enlarged view of the structure in the inner circle of FIG. 1;

[0018] Figure 3 FIG. 4 is a structural schematic view of another direction of the valve shown in FIG. 2; Figure 1

[0019] Figure 4 FIG. 5 is a top view of the abrasive material feeding device shown in FIG. 1; Figure 1

[0020] FIG. 6 is a structural schematic view of another abrasive material feeding device provided by the application. Figure 5 DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the specific embodiments of the application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the application. However, the application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the application, so the application is not limited by the specific embodiments disclosed below.

[0022] ​​The application provides an abrasive material feeding device, which comprises a material frame 10 for loading abrasive material, and a conveying mechanism 20 for receiving the abrasive material output by the material frame 10 and capable of conveying the abrasive material downstream.

[0023] The material frame 10 can be used only for storing the abrasive material and outputting the abrasive material to the conveying mechanism 20 according to needs, or used as a pre-treatment mechanism of the abrasive material, for example, provided with a chemical agent spraying mechanism, so that the abrasive material can be mixed with the chemical agent after entering the material frame 10, thereby meeting more diverse grinding needs.

[0024] In an embodiment, the material frame 10 is used as a transfer bin for storing the abrasive material and capable of outputting the abrasive material according to needs. The diameter of the discharge port of the material frame 10 is limited, the discharge port of the material frame 10 is located directly above the material receiving end of the conveying mechanism 20, and the distance between the two is small (to avoid material splashing), which makes the discharge speed of the material frame 10 controllable within a certain range, and is beneficial to the stability of the discharge of the material frame 10.

[0025] The conveying mechanism 20 can be a conveyor belt, a bucket elevator, a pneumatic conveyor or any other mechanism capable of receiving the abrasive material and delivering the abrasive material downstream. The conveying speed of the conveying mechanism 20 is controllable. The conveying mechanism 20 can stably receive the abrasive material and continuously deliver the abrasive material to the downstream equipment (which can be a storage device or a working device requiring the abrasive material) at a preset speed, so that the downstream equipment can reliably and safely receive the abrasive material. After the downstream equipment is full, the conveying mechanism 20 stops working, and the feeding is completed.

[0026] The abrasive material feeding device provided by the application can conveniently, quickly and accurately realize the automatic conveying of the abrasive material.

[0027] Optionally, the material frame 10 comprises a storage part 11 in the shape of a square frame, and a guide part 12 in the shape of a tapered inverted cone arranged at the lower end of the storage part 11. The storage part 11 is connected to the guide part 12. The top end of the storage part 11 is open to form a feeding port. The bottom end of the guide part 12 is open to form a discharge port.

[0028] For details, refer to Figure 1 In the illustrated embodiment, the upper part of the material frame 10 is the storage part 11 with an open top end, which is composed of four side plates connected head to tail and in the shape of a square frame. The lower part of the material frame 10 is the guide part 12 designed to taper from top to bottom. The top end of the guide part 12 is connected to the bottom end of the storage part 11. The farther away from the storage part 11, the smaller the inner diameter of the guide part 12. The discharge port is located at the center of the bottom end of the guide part 12.

[0029] The box design makes the inner cavity of the storage part 11 large and can accommodate more abrasive materials. The tapered design makes the abrasive materials naturally gather towards the discharge port after entering the guide part 12, so as to facilitate point discharge. At the same time, the inner wall of the guide part 12 is downwardly inclined towards the discharge port, avoiding dead angle storage of materials.

[0030] Optionally, a valve 40 is arranged on the discharge port, and the valve 40 has an open state and a closed state. When the valve 40 is in the open state, the abrasive materials in the material box 10 can pass through the discharge port. When the valve 40 is in the closed state, the abrasive materials in the material box 10 cannot pass through the discharge port.

[0031] The arrangement of the valve 40 can reliably control the storage time and the discharging time.

[0032] The valve 40 can be any valve structure capable of controlling the opening of the discharge port, such as a plate valve, a gate valve, a check valve, etc. The valve 40 can be an automatic valve or a manually controlled driving valve.

[0033] In a specific embodiment, the valve 40 comprises: a first cover 41 and a second cover 42, which are symmetrically arranged, rotatably arranged on the material box 10, and capable of cooperating to shield the discharge port; and an opening and closing driving member for driving the first cover 41 and the second cover 42 to rotate synchronously. When discharging is needed, the opening and closing driving member drives the first cover 41 and the second cover 42 to rotate away from each other, and the valve 40 enters the open state. When discharging is not needed, the opening and closing driving member drives the first cover 41 and the second cover 42 to rotate towards each other, and the two covers can shield the discharge port when abutting against each other, so that the valve 40 enters the closed state.

[0034] More specifically, the first cover 41 and the second cover 42 each comprise: a rotating shaft 41a arranged on the material box 10 and penetrating the discharge port; two groups of connecting pieces 41b arranged on the rotating shaft 41a in an axial direction and spaced apart, and any connecting piece 41b is located outside the material box 10; and a bottom piece 41c arranged in a circular arc shape, connected with the two groups of connecting pieces 41b, and located below the discharge port for shielding the discharge port. When the valve 40 is in the closed state, the bottom pieces 41c of the first cover 41 and the second cover 42 abut against each other, and the two groups of bottom pieces 41c form an arc-shaped cover capable of holding the discharge port like a bowl.

[0035] Specifically, it can be combined with reference to Figures 1 to 4 In the illustrated embodiment, the material box 10 has a storage part 11 and a guide part 12. The bottom end of the guide part 12 is provided with a square discharge port, and a discharge extension section 14 extending downward is arranged at the discharge port. The discharge extension section 14 is also arranged in a box shape. Two rotating shafts 41a are arranged in parallel in the discharge extension section 14, and the rotating shafts 41a are rotatably arranged on the discharge extension section 14 through bearings. The two ends of the rotating shaft 41a penetrate the discharge extension section 14, and a group of connecting pieces 41b is fixedly arranged on any end.

[0036] With reference to the drawings Figure 2 and Figure 3 The bottom plate 41c connects the two groups of connecting plates 41b, and the three constitute a hammock-shaped small bucket which is fixedly arranged on the rotating shaft 41a and can rotate synchronously with the rotating shaft 41a.

[0037] In an embodiment, the opening and closing driving member is a rotary driving member such as a rotary cylinder or a motor, the opening and closing driving member is connected with the rotating shaft 41a, and the opening and closing driving member drives the rotating shaft 41a to rotate and drive the small bucket to swing.

[0038] In another embodiment, the opening and closing driving member is a linear driving member such as a cylinder or an oil cylinder, and the fixed end of the opening and closing driving member is swingably arranged on a base (which will be described in detail below), and the movable end is swingably connected with the small bucket; when the opening and closing driving member works, the opening and closing driving member can swing relative to the small bucket to avoid stroke conflict.

[0039] In other embodiments, the rotating shaft 41a can be fixedly arranged on the material frame 10, and the small bucket is swingably arranged on the rotating shaft 41a; at this time, the opening and closing driving member is connected with the small bucket, and the opening and closing driving member drives the small bucket to rotate while the rotating shaft 41a is stationary.

[0040] The present application does not limit the specific structure of the opening and closing driving member and the specific mounting mode of the small bucket.

[0041] The two groups of small buckets which can swing relative to each other are arranged to shield the discharge port, and when the valve 40 is in a closed state, there is a certain gap between the valve structure and the discharge port, which makes the valve structure not easy to be stuck by the abrasive, the valve structure is not easy to be deformed or damaged due to the impact of the abrasive when the valve is opened, and the swinging and closing mode can be used to achieve rapid folding when the valve is closed; at the same time, the swinging opening and closing form has small space requirement and fast driving response speed.

[0042] In an embodiment, the valve 40 includes two groups of opening and closing driving members, one group of the opening and closing driving members is used to drive the first small bucket 41 to swing, and the other group of the opening and closing driving members is used to drive the second small bucket 42 to swing.

[0043] In another embodiment, the rotating shaft 41a is swingably arranged on the material frame 10, and the connecting plate 41b is fixedly connected with the rotating shaft 41a; the opening and closing driving member includes a driving cylinder 43 which is connected with one of the connecting plates 41b through a rotating joint, a first gear 44 which is arranged on the rotating shaft 41a of the first small bucket 41, and a second gear 45 which is arranged on the rotating shaft 41a of the second small bucket 42, the first gear 44 is engaged with the second gear 45; when discharging is needed, the driving cylinder 43 is started, one of the rotating shafts 41a is rotated, and the first small bucket 41 and the second small bucket 42 are synchronously and oppositely rotated through the transmission of the first gear 44 and the second gear 45.

[0044] Specifically refer to Figure 1 , in the illustrated embodiment, the cylinder body of the drive cylinder 43 is swingably arranged on the partition beam 34 through a swing seat, and the piston rod of the drive cylinder 43 is swingably connected to one of the connecting pieces 41b of the first shelter 41 through a rotary joint.

[0045] In combination with reference to Figure 3 , the rotary shaft 41a of the first shelter 41 is fixedly provided with a first gear 44, and the rotary shaft 41a of the second shelter 42 adjacent to the first shelter 41 is fixedly provided with a second gear 45, and the first gear 44 is engaged with the second gear 45.

[0046] When the drive cylinder 43 drives the first shelter 41 to swing away from the second shelter 42, the first gear 44 rotates in the forward direction, driving the second gear 45 to rotate in the reverse direction, the rotation directions of the two groups of rotary shafts 41a are opposite, and the first shelter 41 and the second shelter 42 are away from each other.

[0047] When the drive cylinder 43 drives the first shelter 41 to swing towards the second shelter 42, the first gear 44 rotates in the reverse direction, driving the second gear 45 to rotate in the forward direction, the rotation directions of the two groups of rotary shafts 41a are opposite, and the first shelter 41 and the second shelter 42 are close to each other.

[0048] By adding a pair of gear sets, synchronous relative motion of the two groups of shelters can be realized by single driving, which is simple, reliable and low in cost.

[0049] Optionally, at least one group of material distribution sharp tips 13 is arranged in the material frame 10, and the material distribution sharp tip 13 is composed of two inclined plates with top abutting and bottom away from each other.

[0050] Specifically refer to Figure 4 , in the illustrated embodiment, two groups of material distribution sharp tips 13 are arranged in the material frame 10, and the two groups of material distribution sharp tips 13 are arranged in the length direction of the material frame 10. The two inclined plates constituting the material distribution sharp tip 13 are symmetrically inclined and extended, and arranged in a triangular shape.

[0051] After the abrasive is put into the material frame 10, it will be affected by gravity and will move to the bottom of the material frame 10. During the falling process, the abrasive is dispersed by the material distribution sharp tip 13, so that the abrasive cannot be concentrated in the fixed area and can be relatively uniformly diffused to each area, thereby avoiding the accumulation of abrasive in the fixed area and hindering the discharge, and avoiding the lack of abrasive in the edge area and affecting the uniformity of discharge.

[0052] Optionally, at least two discharge ports are arranged at the bottom of the material frame 10, and any two adjacent discharge ports are bounded by a group of material distribution sharp tips 13.

[0053] Specifically refer to Figure 1 and Figure 4In the illustrated embodiment, the material frame 10 is provided with two groups of material distribution tips 13, and the lower part of the material frame 10 is provided with three groups of material guiding portions 12. The first material guiding portion 12 is located between the first group of material distribution tips 13 and the left side plate of the material frame 10, the second material guiding portion 12 is located between the two groups of material distribution tips 13, and the third material guiding portion 12 is located between the second group of material distribution tips 13 and the right side plate of the material frame 10. The bottom end of each material guiding portion 12 is provided with a discharge port. The inclined surface of the material distribution tip 13 also serves as a conical surface of the material guiding portion 12.

[0054] In this way, the abrasive materials distributed by the material distribution tips 13 can be dispersed into different material guiding portions 12 in the vicinity, and discharged through different discharge ports, thereby ensuring the smoothness of the discharge.

[0055] If necessary, a plurality of conveying mechanisms 20 can be provided, and any conveying mechanism 20 is connected to a discharge port. The plurality of conveying mechanisms 20 can convey the abrasive materials to different places after receiving the abrasive materials.

[0056] Optionally, the abrasive material feeding device provided by the present application further comprises a base for supporting the material frame 10 so that the material frame 10 is erected directly above the material receiving end of the conveying mechanism 20. The base comprises: a support frame 31 connected to the material frame 10 for fixing the material frame 10; a plurality of supporting legs 32 for cooperating to support the support frame 31 so as to suspend the material frame 10; a plurality of reinforcing ribs 33, one of which is arranged between any two adjacent supporting legs 32; and at least one partition beam 34, one of which is arranged between any two adjacent discharge ports, and the partition beam 34 transversely connects two reinforcing ribs 33.

[0057] For details, please refer to Figure 1 In the illustrated embodiment, the support frame 31 is formed by welding four steel materials (two short rods and two long rods) end to end, and is arranged in a rectangular shape. One supporting leg 32 is arranged at each corner of the rectangle and at the middle of each long rod, and the supporting leg 32 has a certain height and can be fixed to the ground. Along the arrangement direction of the supporting legs 32, one reinforcing rib 33 is arranged between any two adjacent supporting legs 32, and six reinforcing ribs 33 are arranged between the six supporting legs 32. The reinforcing rib 33 is arranged below the support frame 31, and can significantly improve the strength and rigidity of the base without increasing the wall thickness, thereby saving materials, reducing weight and reducing costs.

[0058] For details, please refer to Figure 1Two reinforcing ribs 33 are arranged below the two long rods, and two partition beams 34 are arranged between the two reinforcing ribs 33, the two partition beams 34 are arranged along the length direction of the material frame 10, and each partition beam 34 extends along the width direction of the material frame 10. For the base, the partition beam 34 can further strengthen the frame structure, ensure stability and structural rigidity; for the material frame 10, the reinforcing rib 33 can be used to install the opening and closing driving member, and can also separate each discharge port to facilitate differentiation and independent operation.

[0059] Optionally, the material frame 10 is provided with a material level meter, and the material level meter is used to monitor the storage condition of the material frame 10.

[0060] Through the material level meter, the storage condition of the material frame 10 can be monitored, and when the material level is too high or too low, the staff can be notified to confirm the problem and handle it, and the system can also be notified to supplement or discharge the material, so that the feeding device can continuously and normally operate.

[0061] In an embodiment, the conveying mechanism 20 comprises a conveying support frame which extends obliquely upward, a plurality of belt pulleys 24, any one of which is rotatably arranged on the conveying support frame, and the plurality of belt pulleys 24 are distributed along the extension direction of the conveying support frame, a conveying belt 25 which is arranged around the plurality of belt pulleys 24.

[0062] Specifically, refer to Figure 4 In the illustrated embodiment, the conveying support frame is generally in the shape of a zigzag, which comprises two horizontally extending buffer sections 21 and 22 and an obliquely extending connecting section 23, the arrangement of the buffer sections 21 and 22 is conducive to stable material receiving and smooth material discharging, and the connecting section 23 can realize lifting of the abrasive material so as to facilitate input of the abrasive material into a device located at a high position, and realize rapid and accurate feeding from top to bottom.

[0063] Continuing to refer to Figure 4 The conveying support frame is provided with a plurality of belt pulleys 24, any one of which is rotatably arranged in the middle of the conveying support frame through a bearing, and the conveying belt 25 is supported, tensioned and driven by the belt pulleys 24 around the conveying support frame.

[0064] Through the obliquely extending conveying support frame and the belt pulleys 24 arranged on the conveying support frame, the conveying belt 25 can convey the abrasive material upward and forward after receiving the material, so as to realize rapid feeding from top to bottom for the downstream device.

[0065] The above embodiments only express several implementation ways of the present application, and the description is specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An abrasive material loading device, characterized by, The application relates to a material frame (10) for loading abrasive materials, and a conveying mechanism (20) for receiving the abrasive materials output by the material frame (10) and capable of conveying the abrasive materials downstream. The top of the material frame (10) is provided with an inlet through which the abrasive materials can be put into the material frame (10); and the bottom of the material frame (10) is provided with an outlet through which the abrasive materials can leave the material frame (10) and enter the conveying mechanism (20). The material frame (10) comprises a storage part (11) in the shape of a square frame and a guide part (12) in the shape of a tapered inverted cone arranged at the lower end of the storage part (11). The top end of the storage part (11) is open to form the inlet; and the bottom end of the guide part (12) is open to form the outlet. The outlet is provided with a valve (40) having an open state and a closed state.

2. The abrasive material loading device of claim 1, wherein, When the valve (40) is in the open state, the abrasive materials in the material frame (10) can pass through the outlet; and when the valve (40) is in the closed state, the abrasive materials in the material frame (10) cannot pass through the outlet. The valve (40) comprises a first cover (41) and a second cover (42) which are symmetrically arranged, rotatably arranged on the material frame (10) and capable of cooperating to shield the outlet. The opening and closing driving element is used for driving the first cover (41) and the second cover (42) to synchronously rotate. When the opening and closing driving element drives the first cover (41) and the second cover (42) to rotate away from each other, the valve (40) enters the open state; and when the opening and closing driving element drives the first cover (41) and the second cover (42) to rotate towards each other, the two covers can shield the outlet when abutting against each other, so that the valve (40) enters the closed state. The first cover (41) and the second cover (42) each comprise a rotating shaft (41a) arranged on the material frame (10) and penetrating through the outlet, two groups of connecting plates (41b) arranged on the rotating shaft (41a) in an axial direction and spaced apart from each other, and a bottom plate (41c) arranged in the shape of a circular arc and connected with the two groups of connecting plates (41b) and arranged below the outlet and used for shielding the outlet. When the valve (40) is in the closed state, the bottom plates (41c) of the first cover (41) and the second cover (42) abut against each other, and the two groups of bottom plates (41c) form an arc-shaped cover capable of cupping the outlet in the shape of a bowl.

3. The abrasive material loading device of claim 1, wherein, The rotating shaft (41a) is rotatably arranged on the material frame (10), and the connecting plates (41b) are fixedly connected with the rotating shaft (41a). The opening and closing driving element comprises ​ 4. The abrasive material loading device of claim 3, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 5. The abrasive material loading device of claim 4, wherein, ​ ​ A driving cylinder (43) is connected with one of the connecting plates (41b) through a rotating joint; A first gear (44) is arranged on the rotating shaft (41a) of the first cover (41); A second gear (45) is arranged on the rotating shaft (41a) of the second cover (42), and the first gear (44) is engaged with the second gear (45); When the material needs to be discharged, the driving cylinder (43) is started, one of the rotating shafts (41a) is rotated, and the first gear (44) and the second gear (45) are driven to make the first cover (41) and the second cover (42) rotate in opposite directions synchronously.

6. The abrasive material loading device of claim 1, wherein, The material frame (10) is provided with at least one set of material distribution pointed top (13), and the material distribution pointed top (13) is composed of two groups of inclined plates with top abutting and bottom away from each other.

7. The abrasive loading device of claim 6, wherein, The bottom of the material frame (10) is provided with at least two discharge ports, and any two adjacent discharge ports are bounded by a set of material distribution pointed top (13).

8. The abrasive loading device of claim 7, wherein, It also includes a base for supporting the material frame (10) so that the material frame (10) is erected above the material receiving end of the conveying mechanism (20); The base includes: A support frame (31) connected with the material frame (10) for fixing the material frame (10); A plurality of supporting legs (32) for cooperating to support the support frame (31) to facilitate the suspension of the material frame (10); A plurality of reinforcing ribs (33) are arranged between any two adjacent supporting legs (32); At least one partition beam (34) is arranged between any two adjacent discharge ports, and the partition beam (34) transversely connects two reinforcing ribs (33).

9. The abrasive material loading device of claim 1, wherein, The material frame (10) is provided with a material level meter for monitoring the storage condition of the material frame (10).

10. The abrasive material loading device of any one of claims 1-9, wherein, The conveying mechanism (20) includes: A conveying support frame is arranged to extend upwardly and obliquely; A plurality of belt pulleys (24) are rotatably arranged on the conveying support frame, and the plurality of belt pulleys (24) are distributed along the extension direction of the conveying support frame; A conveying belt (25) is arranged around the plurality of belt pulleys (24); After the abrasive material leaves the material frame (10) through the discharge port, it will fall on the conveying belt (25) and then be lifted and conveyed by the conveying belt (25).

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