An improved precision filtering chain plate type chip conveyor

Abstract

The present invention belongs to the field of chip conveyors, and provides an improved precision filtering chain plate type chip conveyor, comprising a shell, a discharge port is provided at the front end of the shell, the end of the shell is arc-shaped, a chain plate conveying assembly is installed on the shell, the chain plate conveying assembly is arranged along the length direction of the shell, one end of the chain plate conveying assembly is located above the discharge port, a plurality of reflux ports are provided on the side of the shell, a filter box is inserted inside each of the reflux ports, and a filter screen is provided on the filter box. The present invention provides a filter box and a chain plate conveying assembly, fine chips pass through the coarse filter holes and fall onto the filter screen, the coolant will enter the filter box and return to the cooling system of the machine tool, thereby avoiding the waste of coolant, and the filter screen can better filter fine chips, thereby improving the filtering accuracy of the device.

Description

Technical Field

[0001] The invention belongs to the field of chip conveyors, and in particular relates to an improved precision filtering chain plate type chip conveyor. Background Art

[0002] When a machine tool processes a workpiece, the cutting surface needs to be cooled by cutting fluid, and the cutting fluid carries away the waste chips generated by cutting when it flows. When the cutting fluid drives the waste chips to flow, they need to be discharged by a chip conveyor. The chip conveyor is mainly used to collect various metal and non-metallic waste chips generated by the machine tool and transfer the waste chips to a collection vehicle.

[0003] Most of the existing chip conveyors are of chain plate type. The chain plates are punched or pressed to tear holes to give the chain plates a coarse filtering function. However, the fine iron chips between the two chain plates that enter the chip conveyor cannot be discharged, which will aggravate the wear of the chain plates and shorten the service life of the chip conveyor.

[0004] At present, the chip conveyors with filtering function on the market will install a filter box between the two layers of chain plates. The fine iron chips will fall onto the filter box through the filter holes on the chain plates, and then the filter box will be manually disassembled for cleaning to remove the fine chips between the two layers of chain plates. Frequent cleaning of fine chips in this way will cause frequent shutdowns of the machine tool, reduce chip removal efficiency, and increase the burden of manual maintenance, making the filtering function of the chain plate chip conveyor very troublesome to use, which restricts the popularization of chain plate precision filtration. Summary of the invention

[0005] The purpose of the present invention is to provide an improved precision filtering chain plate chip conveyor, aiming to solve the technical problem of low filtering accuracy of chip conveyors in the prior art.

[0006] The present invention is implemented in this way. An improved precision filtering chain plate type chip conveyor comprises a shell, the outer shape of the shell is a high-heeled shoe shape, the front end of the shell is provided with a discharge port, the end of the shell is arc-shaped, a chain plate feeding assembly is installed on the shell, the chain plate feeding assembly is arranged along the length direction of the shell, one end of the chain plate feeding assembly is located above the discharge port, a plurality of reflux ports are opened on the side of the shell, a filter box is inserted inside each of the reflux ports, a filter screen is provided on the filter box, the filter box is installed on the shell by bolts, one end of the filter box extends into the interior of the chain plate feeding assembly, and the other end of the filter box is connected to the cooling system of the machine tool through a pipeline, so that the coolant filtered out by the filter box can return to the machine tool, and also includes:

[0007] A plurality of anti-gravity chip removal assemblies, which are equidistantly mounted on the chain plate conveyor assembly. When the anti-gravity chip removal assembly runs to the upper track of the chain plate conveyor assembly, the anti-gravity chip removal assembly is closed. When the anti-gravity chip removal assembly runs to the lower track of the chain plate conveyor assembly, the anti-gravity chip removal assembly automatically opens, so that fine chips entering the chain plate conveyor assembly can be discharged from the anti-gravity chip removal assembly to the inner bottom of the shell;

[0008] A plurality of third material return brushes, which are equidistantly mounted on the inner surface of the chain plate conveyor assembly, one end of which can contact the surface of the filter box, and as the chain plate conveyor assembly operates, the third material return brush is used to sweep the fine chips that fall on the surface of the filter box to the anti-gravity chip removal assembly;

[0009] A driving motor is mounted on the housing, and an output shaft of the driving motor is connected to an input end of the chain plate feeding assembly.

[0010] Further technical solution: the chain plate feeding assembly includes a plurality of rotating rods, the plurality of rotating rods are rotatably connected to the shell, and the plurality of rotating rods are distributed along the outer shape of the shell, the output shaft of the driving motor is fixedly connected to one end of a rotating rod, each of the rotating rods is fixedly connected to two second sprockets, all the second sprockets on the same side are transmission-connected to the same second chain, a second chain plate is arranged between the two second chains, the second chain plate is annular, and a plurality of coarse filtering holes are opened on the second chain plate;

[0011] The third material return brush is fixedly mounted on the inner surface of the second chain plate, the anti-gravity chip removal assembly is mounted on the second chain plate, and one end of the filter box is located inside the second chain plate.

[0012] Further technical solution: The anti-gravity chip removal assembly includes an anti-gravity cover plate hinged on the second chain plate, a chip removal opening is opened on the second chain plate, the length and width of the anti-gravity cover plate are respectively larger than the length and width of the chip removal opening, and the anti-gravity cover plate can close the chip removal opening.

[0013] Further technical solution: The anti-gravity cover plate is fixedly connected to a limiting claw on one side surface near the hinge between it and the second chain plate. When the limiting claw contacts the second chain plate, the angle between the anti-gravity cover plate and the second chain plate is 45°, thereby preventing the anti-gravity cover plate from rotating excessively, avoiding a large collision between the anti-gravity cover plate and the second chain plate, and protecting the safety of the second chain plate.

[0014] Further technical solution: A fastening screw (not shown) is threadedly connected to one side of the anti-gravity cover plate away from the hinge between the anti-gravity cover plate and the second chain plate, and a threaded hole is provided at a corresponding position on the second chain plate, and the fastening screw can be threadedly connected to the threaded hole.

[0015] Further technical solution: A plurality of second return brushes are fixedly connected to the outer side surface of the second chain plate. When the second return brush moves to the bottom of the second chain plate, one end of the second return brush contacts the inner bottom of the shell. As the second chain plate drives the second return brush to rotate, the second return brush can drive the fine chips at the bottom of the shell to bypass the tail of the arc and sweep to the top of the second chain plate, and then the fine chips can be cleared out of the shell.

[0016] Further technical solution: the filter box comprises a box body, a flange is arranged at the end of the box body, the filter screen is arranged on the top of the box body and communicated with the inside of the box body, and the aperture of the filter screen is smaller than the aperture of the coarse filter hole.

[0017] Further technical solution: a return material conveying assembly and a material guiding mechanism are also provided, the return material conveying assembly is installed on multiple rotating rods, one end of the return material conveying assembly extends to the top of the discharge port, the material guiding mechanism is installed on the inner bottom of the shell, one end of the material guiding mechanism is located below the second chain plate, and the other end of the material guiding mechanism extends to the bottom of the return material conveying assembly, the material guiding mechanism is used to transport the fine chips under the second chain plate to the bottom of the return material conveying assembly, and multiple first return material brushes are fixedly installed on the return material conveying assembly. As the return material conveying assembly moves, the first return material brushes can sweep the fine chips to the top of the return material conveying assembly, and then the return material conveying assembly transports the fine chips to the discharge port and discharges the material from the discharge port.

[0018] Further technical solution: the return material conveying assembly includes a plurality of first sprockets, which are respectively fixedly connected to a plurality of rotating rods, a first chain is transmission-connected between the plurality of first sprockets, a first chain plate is arranged between the first chain and a second chain adjacent thereto, the first chain plate is annular, and all the first return material brushes are equidistantly fixedly mounted on the outer side of the first chain plate.

[0019] Further technical solution: the material guiding mechanism comprises a fixing frame fixedly connected to the inner bottom of the shell, both ends of the fixing frame are equipped with electric rollers, and a conveyor belt is transmission-connected between the two electric rollers;

[0020] In order to prevent fine chips from entering the fixed frame and causing the electric roller to get stuck, a guide plate is fixedly installed on the end of the fixed frame, and one end of the guide plate contacts the surface of the conveyor belt;

[0021] In order to improve the conveying efficiency of fine chips, the fixed frame is installed along the direction of movement of the first material return brush of the lower track and tilted toward the first chain plate;

[0022] A plurality of scraper plates are fixedly connected to the conveyor belt, and the scraper plates are arranged obliquely along the inclination direction of the fixed frame.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention provides a filter box and a chain plate feeding assembly, so that fine chips pass through the coarse filter holes and fall onto the filter net, and the coolant enters the filter box and returns to the cooling system of the machine tool, thereby avoiding the waste of coolant. The filter net can better filter fine chips, thereby improving the filtering accuracy of the device;

[0025] 2. The present invention provides an anti-gravity chip removal assembly and a third material return brush. When the anti-gravity cover plate moves to the top of the second chain plate, the anti-gravity cover plate closes the chip removal opening under the action of gravity to prevent all iron chips from falling into the second chain plates from the chip removal opening. When the anti-gravity cover plate moves to the bottom of the second chain plate, the anti-gravity cover plate rotates downward to open the chip removal opening, making it easier for fine chips to fall from the chip removal opening to the inner bottom of the shell. Then, the second chain plate drives the third material return brush to clean the fine chips at the bottom of the shell, and cleans the fine chips to the top of the second chain plate. Then, the fine chips are discharged from the chip conveyor, thereby avoiding wear of the second chain plate and extending the service life of the chip conveyor.

[0026] 3. In the present invention, when the anti-gravity cover plate rotates, the limit claw will contact the second chain plate, thereby preventing the anti-gravity cover plate from rotating excessively, avoiding a large collision between the anti-gravity cover plate and the second chain plate, and protecting the safety of the second chain plate;

[0027] 4. The present invention, by providing fastening screws and threaded holes, can fix the anti-gravity cover plate to the second chain plate when repairing and replacing the anti-gravity chip removal assembly, thereby facilitating the disassembly of the anti-gravity chip removal assembly;

[0028] 5. The present invention provides a return material conveying assembly, a material guiding mechanism and a first return material brush. After the fine chips fall to the inner bottom of the shell, the second chain plate cleans the fine chips at the bottom of the shell to the material guiding mechanism through the third return material brush. The material guiding mechanism transports the fine chips to the bottom of the return material conveying assembly. Then, the return material conveying assembly cleans the fine chips to the top of the return material conveying assembly through the first return material brush and transports them to the discharge port for discharge. There is no need to additionally recover the fine chips, and iron chip collection is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2It is a schematic diagram of the overall partial front view structure of the present invention.

[0031] Figure 3 It is a schematic diagram of the overall and partial structure of the present invention when viewed from above.

[0032] Figure 4 It is a schematic diagram of the overall partial cross-sectional structure of the present invention.

[0033] Figure 5 It is a schematic structural diagram of the distribution of the first sprocket and the second sprocket in the present invention.

[0034] Figure 6 It is a schematic structural diagram of the anti-gravity chip removal assembly in the open state of the present invention.

[0035] Figure 7 It is a structural schematic diagram of the material guiding mechanism in the present invention.

[0036] Figure 8 For the present invention Figure 7 Enlarged schematic diagram at point A in the middle.

[0037] Fig. 9 It is a schematic diagram of the structure of the filter box in the present invention.

[0038] In the accompanying drawings: 1. driving motor; 2. filter box; 21. flange; 22. box body; 23. filter screen; 3. return material conveying assembly; 31. first sprocket; 32. first chain; 33. first chain plate; 4. first return material brush; 5. chain plate conveying assembly; 51. rotating rod; 52. second chain; 53. second chain plate; 54. second sprocket; 55. coarse filter hole; 6. second return material brush; 7. anti-gravity chip removal assembly; 71. chip removal port; 72. anti-gravity cover plate; 73. limiting claw; 8. shell; 9. discharge port; 10. material guiding mechanism; 101. conveyor belt; 102. fixed frame; 103. electric roller; 104. material guide plate; 105. scraper plate; 11. third return material brush. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0041] like Figure 1-Figure 9As shown, an improved precision filtering chain plate type chip conveyor provided by the present invention includes a shell 8, the outer shape of the shell 8 is a high-heeled shoe shape, the front end of the shell 8 is provided with a discharge port 9, the end of the shell 8 is arc-shaped, a chain plate feeding assembly 5 is installed on the shell 8, the chain plate feeding assembly 5 is arranged along the length direction of the shell 8, one end of the chain plate feeding assembly 5 is located above the discharge port 9, a plurality of reflux ports are opened on the side of the shell 8, a filter box 2 is inserted inside each of the reflux ports, a filter screen 23 is provided on the filter box 2, the filter box 2 is installed on the shell 8 by bolts, one end of the filter box 2 extends into the interior of the chain plate feeding assembly 5, and the other end of the filter box 2 is connected to the cooling system of the machine tool through a pipeline, so that the coolant filtered out by the filter box 2 can return to the machine tool, and also includes:

[0042] A plurality of anti-gravity chip removal assemblies 7 are equidistantly mounted on the chain plate conveying assembly 5. When the anti-gravity chip removal assembly 7 runs to the upper track of the chain plate conveying assembly 5, the anti-gravity chip removal assembly 7 is closed. When the anti-gravity chip removal assembly 7 runs to the lower track of the chain plate conveying assembly 5, the anti-gravity chip removal assembly 7 is automatically opened, so that the fine chips entering the chain plate conveying assembly 5 can be discharged from the anti-gravity chip removal assembly 7 to the inner bottom of the shell 8.

[0043] A plurality of third material return brushes 11, which are equidistantly mounted on the inner surface of the chain plate conveying assembly 5, one end of each third material return brush 11 can contact the surface of the filter box 2, and as the chain plate conveying assembly 5 operates, the third material return brush 11 is used to sweep the fine chips that fall on the surface of the filter box 2 to the anti-gravity chip removal assembly 7;

[0044] The driving motor 1 is mounted on the housing 8 , and the output shaft of the driving motor 1 is connected to the input end of the chain plate feeding assembly 5 .

[0045] like Figure 1-Figure 5 As shown, an improved precision filtering chain plate type chip conveyor provided by the present invention, in this embodiment, the chain plate feeding assembly 5 includes a plurality of rotating rods 51, and the plurality of rotating rods 51 are rotatably connected to the housing 8, and the plurality of rotating rods 51 are distributed along the outer shape of the housing 8, the output shaft of the driving motor 1 is fixedly connected to one end of a rotating rod 51, and each of the rotating rods 51 is fixedly connected to two second sprocket wheels 54, and all the second sprocket wheels 54 on the same side are transmission-connected to the same second chain 52, and a second chain plate 53 is arranged between the two second chains 52, and the second chain plate 53 is annular, and a plurality of coarse filtering holes 55 are opened on the second chain plate 53;

[0046] The third material return brush 11 is fixedly mounted on the inner surface of the second chain plate 53 , the anti-gravity chip removal assembly 7 is mounted on the second chain plate 53 , and one end of the filter box 2 is located inside the second chain plate 53 .

[0047] Fine chips passing through the coarse filter holes 55 will fall onto the filter screen 23, and the coolant will enter the filter box 2 and return to the cooling system of the machine tool, thereby avoiding the waste of coolant. The filter screen 23 can better filter the fine chips and improve the filtering accuracy of the device.

[0048] like Figure 1-Figure 4 and Figure 6 As shown, an improved precision filtering chain plate type chip conveyor provided by the present invention, in this embodiment, the anti-gravity chip removal component 7 includes an anti-gravity cover plate 72 hinged on the second chain plate 53, and the second chain plate 53 is provided with a chip removal opening 71, the length and width of the anti-gravity cover plate 72 are respectively greater than the length and width of the chip removal opening 71, and the anti-gravity cover plate 72 can close the chip removal opening 71.

[0049] When the anti-gravity cover plate 72 moves to the top of the second chain plate 53, under the action of gravity, the anti-gravity cover plate 72 closes the chip discharge port 71. When the anti-gravity cover plate 72 moves to the bottom of the second chain plate 53, the anti-gravity cover plate 72 rotates downward to open the chip discharge port 71, making it convenient for fine chips to fall from the chip discharge port 71 to the inner bottom of the shell 8. Then the second chain plate 53 drives the third return brush 11 to clean the fine chips at the bottom of the shell 8, and clean the fine chips to the top of the second chain plate 53, and then discharge the fine chips out of the chip conveyor, thereby avoiding wear of the second chain plate 53 and extending the service life of the chip conveyor.

[0050] like Figure 1-Figure 4 and Figure 6 As shown, an improved precision filtering chain plate type chip conveyor provided by the present invention, in this embodiment, the anti-gravity cover plate 72 is fixedly connected with a limiting claw 73 on one side surface near the hinge between it and the second chain plate 53, when the limiting claw 73 contacts the second chain plate 53, the angle between the anti-gravity cover plate 72 and the second chain plate 53 is 45°, thereby avoiding excessive rotation of the anti-gravity cover plate 72, avoiding a large collision between the anti-gravity cover plate 72 and the second chain plate 53, and protecting the safety of the second chain plate 53.

[0051] The present invention provides an improved precision filtering chain plate type chip conveyor. In this embodiment, the anti-gravity cover plate 72 is threadedly connected with a fastening screw (not shown) on one side away from the hinge between it and the second chain plate 53, and a threaded hole is opened at a corresponding position on the second chain plate 53, and the fastening screw can be threadedly connected to the threaded hole.

[0052] When inspecting the chain plate feeding assembly 5 , the fastening screw is screwed into the threaded hole to fix the anti-gravity cover plate 72 to the second chain plate 53 , thereby closing the chip removal opening 71 , making it easier to inspect and replace the anti-gravity chip removal assembly 7 .

[0053] like Figure 1-Figure 4 As shown, an improved precision filtering chain plate type chip conveyor provided by the present invention, in this embodiment, a plurality of second return brushes 6 are fixedly connected to the outer side surface of the second chain plate 53, when the second return brush 6 moves to the bottom of the second chain plate 53, one end of the second return brush 6 contacts the inner bottom of the shell 8, as the second chain plate 53 drives the second return brush 6 to rotate, the second return brush 6 can drive the fine chips at the bottom of the shell 8 to bypass the tail of the arc and sweep to the top of the second chain plate 53, and then the fine chips can be cleared out of the shell 8.

[0054] like Figure 1-Figure 4 and Fig. 9 As shown, an improved precision filtering chain plate chip conveyor provided by the present invention, in this embodiment, the filter box 2 includes a box body 22, the end of the box body 22 is provided with a flange 21, the filter screen 23 is arranged on the top of the box body 22 and is connected to the inside of the box body 22, and the aperture of the filter screen 23 is smaller than the aperture of the coarse filter hole 55.

[0055] like Figure 1-Figure 3 and Figure 5-Figure 8 As shown, an improved precision filtering chain plate chip conveyor provided by the present invention, in order to avoid not cleaning up the fine chips additionally, in this embodiment, a return material conveying assembly 3 and a material guiding mechanism 10 are also provided, the return material conveying assembly 3 is mounted on a plurality of rotating rods 51, one end of the return material conveying assembly 3 extends to the top of the material outlet 9, the material guiding mechanism 10 is mounted on the inner bottom of the shell 8, one end of the material guiding mechanism 10 is located below the second chain plate 53, and the other end of the material guiding mechanism 10 extends to the bottom of the return material conveying assembly 3, the material guiding mechanism 10 is used to transport the fine chips below the second chain plate 53 to the bottom of the return material conveying assembly 3, a plurality of first return material brushes 4 are fixedly mounted on the return material conveying assembly 3, as the return material conveying assembly 3 moves, the first return material brush 4 can sweep the fine chips to the top of the return material conveying assembly 3, and then the return material conveying assembly 3 transports the fine chips to the material outlet 9 and discharges the material from the material outlet 9.

[0056] like Figure 1-Figure 3 and Figure 5As shown, an improved precision filtering chain plate type chip conveyor provided by the present invention, in this embodiment, the return material conveying assembly 3 includes a plurality of first sprocket wheels 31, and the plurality of first sprocket wheels 31 are respectively fixedly connected to a plurality of rotating rods 51, and a first chain 32 is transmission-connected between the plurality of first sprocket wheels 31, and a first chain plate 33 is arranged between the first chain 32 and the second chain 52 adjacent thereto, and the first chain plate 33 is annular, and all the first return material brushes 4 are fixedly installed on the outer side surface of the first chain plate 33 at equal distances.

[0057] like Figure 2-Figure 4 and Figure 7-Figure 8 As shown, an improved precision filtering chain plate type chip conveyor provided by the present invention, in this embodiment, the material guide mechanism 10 includes a fixed frame 102 fixedly connected to the bottom of the housing 8, both ends of the fixed frame 102 are equipped with electric rollers 103, and a conveyor belt 101 is transmission-connected between the two electric rollers 103;

[0058] In order to prevent fine chips from entering the fixed frame 102 and causing the electric roller 103 to get stuck, a guide plate 104 is fixedly installed on the end of the fixed frame 102. One end of the guide plate 104 contacts the surface of the conveyor belt 101. In order to prevent the guide plate 104 from affecting the operation of the conveyor belt 101, the guide plate 104 is made of soft material.

[0059] In order to improve the conveying efficiency of fine chips, the fixed frame 102 is installed along the direction of movement of the first return brush 4 of the lower track and tilted toward the first chain plate 33;

[0060] A plurality of scraper plates 105 are fixedly connected to the conveyor belt 101 , and the scraper plates 105 are arranged obliquely along the inclination direction of the fixed frame 102 .

[0061] Working principle:

[0062] The iron chips produced by the machine tool are poured onto the second chain plate 53, and the driving motor 1 drives the rotating rod 51 to rotate. The rotating rod 51 drives the second chain plate 53 to move through the second chain 52. The fine chips in the iron chips fall onto the filter screen 23 through the coarse filter hole 55, and the coarse chips remain on the second chain plate 53 and move with the second chain plate 53, and are then transported to the discharge port 9 for discharge. In this process, the coolant contaminated on the iron chips will also flow onto the filter screen 23 through the coarse filter hole 55, and the coolant flows into the box body 22 and is sent back to the machine tool cooling system through the pipeline, while the fine chips remain on the filter screen 23 and move with the second chain plate 5 3, the second chain plate 53 drives the third return brush 11 to scrape the fine chips on the filter screen 23, and the fine chips fall to the inner bottom of the shell body 8 through the chip discharge port 71, and then the second chain plate 53 drives the second return brush 6 to sweep the fine chips on the inner bottom of the shell body 8 to the guide mechanism 10, the electric roller 103 drives the conveyor belt 101 to move, and the conveyor belt 101 transports the fine chips to the bottom of the first chain plate 33 through the scraper plate 105, the first chain plate 33 drives the first return brush 4 to sweep the fine chips to the top of the first chain plate 33, and then the first chain plate 33 drives the fine chips to be transported to the discharge port 9, and the material is discharged without additional cleaning of the fine chips.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An improved precision filtering chain plate type chip conveyor, comprising a housing (8), a discharge port (9) being arranged at the front end of the housing (8), the end of the housing (8) being arc-shaped, a chain plate conveying assembly (5) being mounted on the housing (8), the chain plate conveying assembly (5) being arranged along the length direction of the housing (8), one end of the chain plate conveying assembly (5) being located above the discharge port (9), and characterized in that: A plurality of return ports are provided on the side of the housing (8), a filter box (2) is inserted into the interior of each of the return ports, a filter screen (23) is provided on the filter box (2), the filter box (2) is mounted on the housing (8) by means of bolts, one end of the filter box (2) extends into the interior of the chain plate feed assembly (5), and further comprises: A plurality of anti-gravity chip removal assemblies (7), wherein the plurality of anti-gravity chip removal assemblies (7) are equidistantly mounted on the chain plate conveyor assembly (5); when the anti-gravity chip removal assemblies (7) run to the upper track of the chain plate conveyor assembly (5), the anti-gravity chip removal assemblies (7) are closed; and when the anti-gravity chip removal assemblies (7) run to the lower track of the chain plate conveyor assembly (5), the anti-gravity chip removal assemblies (7) are automatically opened; A plurality of third material return brushes (11), wherein the plurality of third material return brushes (11) are equidistantly mounted on the inner surface of the chain plate conveyor assembly (5), one end of the third material return brush (11) being capable of contacting the surface of the filter box (2), and as the chain plate conveyor assembly (5) operates, the third material return brush (11) is used to sweep fine chips that fall onto the surface of the filter box (2) to the anti-gravity chip removal assembly (7); A drive motor (1), wherein the drive motor (1) is mounted on a housing (8), and an output shaft of the drive motor (1) is connected to an input end of a chain plate conveying assembly (5).

2. The improved precision filtering chain plate chip conveyor according to claim 1 is characterized in that: The chain plate conveying assembly (5) comprises a plurality of rotating rods (51), the plurality of rotating rods (51) are all rotatably connected to the housing (8), and the plurality of rotating rods (51) are all distributed along the outer shape of the housing (8), the output shaft of the driving motor (1) is fixedly connected to one end of a rotating rod (51), two second sprocket wheels (54) are fixedly connected to each of the rotating rods (51), all the second sprocket wheels (54) located on the same side are transmission-connected to the same second chain (52), a second chain plate (53) is arranged between the two second chains (52), the second chain plate (53) is annular, and a plurality of coarse filtering holes (55) are provided on the second chain plate (53).

3. The improved precision filtering chain plate chip conveyor according to claim 2 is characterized in that: The anti-gravity chip removal assembly (7) comprises an anti-gravity cover plate (72) hinged on the second chain plate (53), the second chain plate (53) is provided with a chip removal opening (71), and the length and width of the anti-gravity cover plate (72) are respectively greater than the length and width of the chip removal opening (71).

4. The improved precision filtering chain plate chip conveyor according to claim 3 is characterized in that: A limiting claw (73) is fixedly connected to a surface of one side of the anti-gravity cover plate (72) near the hinged connection between the anti-gravity cover plate (72) and the second chain plate (53); when the limiting claw (73) contacts the second chain plate (53), the angle between the anti-gravity cover plate (72) and the second chain plate (53) is 45°.

5. The improved precision filtering chain plate type chip conveyor according to claim 3 is characterized in that: A fastening screw is threadedly connected to one side of the anti-gravity cover plate (72) away from the hinged connection between the anti-gravity cover plate (72) and the second chain plate (53), and a threaded hole is provided at a corresponding position on the second chain plate (53).

6. The improved precision filtering chain plate type chip conveyor according to claim 2 is characterized in that: A plurality of second material return brushes (6) are fixedly connected to the outer side surface of the second chain plate (53); when the second material return brush (6) moves to the bottom of the second chain plate (53), one end of the second material return brush (6) contacts the inner bottom of the housing (8).

7. The improved precision filtering chain plate type chip conveyor according to claim 2 is characterized in that: The filter box (2) comprises a box body (22), the end of the box body (22) being provided with a flange (21), the filter screen (23) being provided at the top of the box body (22) and being in communication with the interior of the box body (22), the aperture of the filter screen (23) being smaller than the aperture of the coarse filter hole (55).

8. The improved precision filtering chain plate type chip conveyor according to claim 2 is characterized in that: A return material conveying assembly (3) and a material guiding mechanism (10) are also provided. The return material conveying assembly (3) is mounted on a plurality of rotating rods (51). One end of the return material conveying assembly (3) extends above the material outlet (9). The material guiding mechanism (10) is mounted on the inner bottom of the housing (8). One end of the material guiding mechanism (10) is located below the second chain plate (53). The other end of the material guiding mechanism (10) extends below the return material conveying assembly (3). The material guiding mechanism (10) is used to transport fine chips below the second chain plate (53) to below the return material conveying assembly (3). A plurality of first return material brushes (4) are fixedly mounted on the return material conveying assembly (3). As the return material conveying assembly (3) moves, the first return material brushes (4) can sweep the fine chips to the top of the return material conveying assembly (3).

9. The improved precision filtering chain plate type chip conveyor according to claim 8, characterized in that: The return material conveying assembly (3) comprises a plurality of first sprocket wheels (31), the plurality of first sprocket wheels (31) being fixedly connected to a plurality of rotating rods (51) respectively, a first chain (32) being transmission-connected between the plurality of first sprocket wheels (31), a first chain plate (33) being arranged between the first chain (32) and a second chain (52) adjacent thereto, the first chain plate (33) being annular, and all the first return material brushes (4) being fixedly mounted at equal distances on the outer side surface of the first chain plate (33).

10. The improved precision filtering chain plate type chip conveyor according to claim 8, characterized in that: The material guiding mechanism (10) comprises a fixing frame (102) fixedly connected to the inner bottom of the housing (8), electric rollers (103) are installed at both ends of the fixing frame (102), and a conveyor belt (101) is transmission-connected between the two electric rollers (103); A material guide plate (104) is fixedly mounted on the end of the fixed frame (102), and one end of the material guide plate (104) is in contact with the surface of the conveyor belt (101); The fixing frame (102) is installed along the direction of movement of the first material return brush (4) of the lower track and is tilted toward the first chain plate (33); A plurality of scraper plates (105) are fixedly connected to the conveyor belt (101), and the scraper plates (105) are arranged obliquely along the inclination direction of the fixed frame (102).

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