Chip removal filtering device of paper tape filter

Abstract

The invention discloses a chip removal filter device of a paper tape filter, and relates to the technical field of filtration, the chip removal filter device comprises a filter box, one side of the filter box is communicated with a liquid discharge pipe, a conveying assembly is mounted on the filter box, a first filter medium transversely penetrates through the filter box, a liquid injection pipe is fixedly connected in the filter box, and a second filter medium transversely penetrates through the liquid injection pipe. At least one rectangular outlet is formed in the bottom of the liquid injection pipe, a positioning rotating frame is rotationally connected to the liquid injection pipe, the first filtering medium is located between the conveying assembly and the positioning rotating frame, and a set of sliding rails are fixedly connected into the filtering box. The dustpan type material receiving structure composed of the filtering frame and the material collecting plate is arranged near the highest point of the filter paper conveying path, fine impurities falling off due to gravity can be reliably received and prevented from falling to the bottom of equipment or being mixed into liquid to be filtered again, chip removal thoroughness is remarkably improved, and cleanliness and stability of a filtering system are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of filtration technology, and more particularly to a chip removal filtration device for a paper tape filter. Background Technology

[0002] A paper belt filter is a solid-liquid separator that continuously circulates filter cutting fluid through filter paper. Specifically, when the cutting fluid permeates through the filter paper mesh, impurities such as metal chips are intercepted and adsorbed onto the filter paper. The conveyor belt continuously transports the filter paper carrying impurities to the chip removal area, and finally rolls the waste chips into the collection box. At the same time, the cleaned cutting fluid is recycled.

[0003] During the operation of the paper belt filter, the filter paper and the filter paper conveyor belt adopt a concave structure to achieve liquid retention filtration. When the filter paper carries the attached impurities to the highest point of the conveyor belt outlet, some of the slightly attached impurities are easily detached from the paper belt due to gravity and fail to be discharged with the filter paper. Instead, they fall to the bottom area of ​​the filtration equipment and accumulate. This phenomenon causes the impurities to be re-mixed into the liquid to be filtered, which ultimately leads to a decrease in filtration efficiency and incomplete chip removal, thereby prolonging the overall filtration operation time. Summary of the Invention

[0004] In order to overcome the disadvantage that impurities on the surface of filter paper are easily shed during discharge, the present invention provides a chip removal and filtration device for a paper belt filter.

[0005] A chip removal and filtration device for a paper tape filter includes a filter box, a drain pipe connected to one side of the filter box, a conveying assembly mounted on the filter box, a first filter medium passing through the filter box laterally, an injection pipe fixedly connected inside the filter box, at least one rectangular outlet at the bottom of the injection pipe, a positioning frame rotatably connected to the injection pipe, the first filter medium being located between the conveying assembly and the positioning frame, a set of slide rails fixedly connected inside the filter box, a first mounting block slidably connected within the slide rails, a mounting frame slidably connected between the first mounting blocks, a set of electric push rods fixedly connected inside the filter box, the output end of the electric push rods being fixedly connected to an adjacent first mounting block, a laser sensor fixedly connected inside the filter box near the slide rails, a filter frame mounted on the mounting frame, a collection plate fixedly connected to the filter frame near the first filter medium, and a second filter medium laid inside the filter frame.

[0006] Furthermore, both the first filter medium and the second filter medium are filter paper.

[0007] Furthermore, the conveying assembly consists of a motor-driven roller and a mesh conveyor belt, which is used to convey the first filter medium.

[0008] Furthermore, each rectangular outlet of the injection tube is provided with a guide frame on its lower side, and the guide frame has symmetrically distributed guide grooves.

[0009] Furthermore, the guide frame is configured as an inverted V-shape.

[0010] Furthermore, the injection tube is fixedly connected to a guide frame symmetrically distributed along the rectangular outlet, the material guide frame is slidably connected to the adjacent guide frame through a second mounting block, the material guide frame is provided with a dividing line, the dividing line is located between the symmetrically distributed material guide grooves, and the dividing line is biased to one side, and a spring is fixedly connected between the second mounting block and the adjacent guide frame.

[0011] Furthermore, the filter frame is rotatably connected to a baffle, a torsion spring is fixedly connected between the filter frame and the baffle, a top frame is slidably connected to the filter frame, the top of the top frame contacts the filter frame, and the bottom of the top frame is pressed against the baffle.

[0012] Furthermore, the top of the top frame is provided with an inclined surface, which is pressed into the mounting frame.

[0013] The beneficial effects of this invention are as follows: 1. The present invention sets up a "scoop-type" structure consisting of a filter frame and a collection plate near the highest point of the filter paper conveying path for receiving materials. It can reliably receive small impurities that fall off due to gravity, preventing them from falling to the bottom of the equipment or re-mixing into the liquid to be filtered, significantly improving the thoroughness of debris removal and ensuring the cleanliness and stability of the filtration system.

[0014] 2. This invention uses a laser sensor to monitor the thickness of the filter cake on the surface of the first filter medium in real time and feeds the signal back to the controller. The controller drives the electric push rod to automatically adjust the position of the collecting plate along the slide rail, thereby achieving adaptive tracking of the filter cake thickness and dynamic control of the collecting gap. This ensures a safe distance between the collecting plate and the filter cake, avoiding interference in transmission and ensuring effective material collection, thus achieving intelligent and continuous operation.

[0015] 3. The guide frame of the present invention allows more cutting fluid to flow to the left side of the first filter medium through the offset design of the dividing line, making full use of its high permeability as the "main filtration zone". The right side undertakes auxiliary filtration, realizing the functional classification of the front and rear sections, rationally distributing the load, extending the service life of the filter paper, improving the filtration efficiency per unit area, and effectively preventing local overload by setting springs and other components.

[0016] 4. This invention uses a linkage structure of torsion spring, baffle, and top frame to automatically close the inlet and outlet when the filter frame is disassembled and automatically open it when it is installed, effectively sealing the impurities collected inside, preventing them from falling and contaminating the working environment during transportation, and improving the hygiene and safety of the equipment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the filter box, conveying assembly, and first filter medium of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the injection tube, positioning rotating frame, and slide rail of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the injection tube and positioning rotating frame of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the slide rail, mounting bracket, and electric push rod of the present invention.

[0022] Figure 6 This is a three-dimensional structural diagram of the mounting frame, filter frame, collection plate, and second filter medium of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the injection tube, positioning rotating frame, and material guide frame of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the guide frame and the second mounting block of the present invention.

[0025] Figure 9 This is a three-dimensional structural diagram of the injection tube, guide frame, and guide frame of the present invention.

[0026] Figure 10 This is a three-dimensional structural diagram of the second mounting block, guide frame, guide frame, and spring of the present invention.

[0027] Figure 11 This is a three-dimensional structural diagram of the baffle, torsion spring, and top bracket of the present invention in the open state.

[0028] Figure 12 This is a three-dimensional structural diagram of the baffle, torsion spring, and top frame of the present invention in their closed state.

[0029] The attached diagram is labeled as follows: 1. Filter box; 101. Drain pipe; 2. Conveying assembly; 3. First filter medium; 4. Injection pipe; 5. Positioning rotating frame; 6. Slide rail; 7. Mounting frame; 701. First mounting block; 8. Electric push rod; 801. Laser sensor; 9. Filter frame; 10. Collection plate; 11. Second filter medium; 12. Guide frame; 121. Guide trough; 122. Second mounting block; 123. Dividing line; 13. Guide frame; 14. Spring; 15. Baffle; 16. Torsion spring; 17. Top frame; 171. Inclined surface. Detailed Implementation

[0030] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0031] Example 1 A chip removal and filtration device for a paper tape filter, such as Figures 1-6 As shown, the system includes a filter box 1, a liquid level alarm, and an automatic paper feeding system. A drain pipe 101 is connected to the lower left side of the filter box 1 to discharge the filtered cutting fluid. A first filter medium 3 runs horizontally through the filter box 1 from left to right. A conveying assembly 2 is installed on the filter box 1, consisting of a motor-driven roller and a mesh conveyor belt (i.e., "mesh belt"). The mesh conveyor belt conveys the first filter medium 3 to the right. The first filter medium 3 is filter paper (i.e., "paper tape"), which is laid on the mesh conveyor belt as the main filtration layer. A liquid injection pipe 4 is fixed between the front and rear sides in the middle of the filter box 1. The bottom of the liquid injection pipe 4 has two rectangular outlets. A positioning frame 5 is rotatably connected to the liquid injection pipe 4. The first filter medium 3 is located between the conveying assembly 2 and the positioning frame 5, so that the first filter medium 3 is laid in a concave cavity. A set of inclined slide rails 6 is fixed inside the filter box 1. A first mounting block 701 is slidably connected inside the slide rails 6. A mounting frame 7 is slidably connected between 01 and 02. A set of electric push rods 8 is fixedly connected inside the filter box 1. The output end of the electric push rods 8 is fixedly connected to the adjacent first mounting block 701. A laser sensor 801 is fixedly connected inside the filter box 1 near the slide rail 6. It is used to continuously monitor the thickness of the filter cake on the paper tape. The laser sensor 801 is electrically connected to the electric push rods 8 through a controller. A filter frame 9 is installed on the mounting frame 7. An inlet and outlet are provided on the lower right side of the filter frame 9. It is used to collect the fine debris and impurities falling from the highest convex point of the upper right roller of the conveying assembly 2. A collecting plate 10 is fixedly connected to the side of the filter frame 9 near its inlet and outlet. The collecting plate 10 is close to the first filter medium 3 but does not contact it. It is used to better guide the falling fine debris and impurities into the filter frame 9. A second filter medium 11 is laid inside the filter frame 9. The second filter medium 11 is also set as filter paper. It serves as an auxiliary filter layer and is used to filter the fine debris and impurities falling from the highest convex point of the upper right roller of the conveying assembly 2.

[0032] like Figures 7-10As shown, each rectangular outlet of the injection tube 4 is provided with a guide frame 12 on its lower side. The guide frame 12 is designed as an inverted V shape. Multiple guide grooves 121 are symmetrically distributed along the length of the guide frame 12. The injection tube 4 is fixedly connected to a guide frame 13 symmetrically distributed along the front and rear of the rectangular outlet. A second mounting block 122 is slidably connected inside the guide frame 13. The second mounting block 122 is fixedly connected to the adjacent guide frame 12, so that the guide frame 12 and the injection tube 4 are slidably connected. A dividing line 123 is provided on the guide frame 12. The dividing line is located between the guide grooves 121 and the dividing line 123 is biased to the right. A spring 14 is fixedly connected between the second mounting block 122 and the adjacent guide frame 13.

[0033] The specific operation of this paper tape filter for chip removal and filtration is as follows: After coarse filtration of the large flow of cutting fluid discharged from the machining center, it is then pumped into the injection pipe 4. The cutting fluid in the injection pipe 4 is discharged through the rectangular outlet and then transported along the guide groove 121 of the guide frame 12 to the first filter medium 3, which is laid with a mesh belt to form a concave cavity. Fine solid particles and impurities are trapped on the surface of the first filter medium 3 to form a filter cake, while the liquid passes through the first filter medium 3 and the mesh belt and enters the bottom of the filter box 1, and is discharged through the drain pipe 101. In this way, two-stage high-precision filtration is achieved, realizing the recycling of cutting fluid resources of CNC machining centers.

[0034] As fine particles accumulate on the surface of the first filter medium 3, its permeability decreases, and the liquid level gradually rises. When the liquid level reaches the set height, the liquid level alarm activates the automatic paper feeding system of this filter, causing the fine particles to move to the right along with the first filter medium 3, discharging the slag-laden portion. At the same time, clean first filter medium 3 is introduced, and the system returns to a high-efficiency filtration state, achieving automatic, continuous, and unattended operation.

[0035] When the first filter medium 3, carrying the attached impurities, moves to the highest convex point of the upper roller on the right side of the conveying assembly 2, some of the slightly attached impurities detach from the paper tape due to gravity. To prevent them from falling back onto the concave point of the first filter medium 3, the present invention provides a filter frame 9 and a collecting plate 10 on the left side near the highest convex point. The two are combined to form a sieve-like structure, which can receive and collect the falling impurities, so that the impurities are trapped on the surface of the second filter medium 11. This ensures filtration efficiency and avoids incomplete chip removal and extended overall filtration operation time.

[0036] As impurities on the first filter medium 3 increase (i.e., the filter cake thickens), the collecting plate 10 should also move upward accordingly to ensure the distance between the filter cake on the first filter medium 3 and the collecting plate 10. Otherwise, it will affect the normal transmission of the first filter medium 3. The specific operation of dynamically adjusting the position of the collecting plate 10 is as follows: The laser sensor 801 emits laser pulses and receives reflected signals. It calculates the distance through photoelectric conversion and signal processing, and supports high-speed sampling (such as up to 9400Hz). When this paper tape filter is running, impurities form a filter cake layer on the paper tape. The laser sensor 801 continuously monitors its thickness, tracks the change in filter cake thickness in real time, and sends an electrical signal to the controller. After receiving the electrical signal, the controller controls the electric push rod 8 to extend adaptively and progressively in real time, thereby pushing the first mounting block 701 to slide obliquely upward along the slide rail 6, so that the mounting frame 7 drives the collecting plate 10 to move obliquely and adaptively upward through the filter frame 9 to maintain the distance between the filter cake and the collecting plate 10.

[0037] As described above, the guide frame 12 guides the cutting fluid to the first filter medium 3 through the guide groove 121, which allows the cutting fluid to be evenly distributed. This is to avoid concentrated distribution of the cutting fluid, which would affect the filtration effect. Furthermore, the... Figure 9 It can be seen intuitively that the dividing line 123 of the guide frame 12 is more biased to the right. This causes more cutting fluid to flow to the left. The purpose of this setting is that the left part of the first filter medium 3 is for primary filtration, while the right part is for secondary filtration. Therefore, the left part of the first filter medium 3 plays the main filtration role, while the right part plays the auxiliary filtration role, which improves the filtration effect and takes into account the different filtration capabilities of each part.

[0038] When the weight on the left side of the guide frame 12 is too heavy, the guide frame 12 will cause the second mounting block 122 to slide to the lower left along the guide frame 13 under the action of gravity. The spring 14 will be compressed, causing the dividing line 123 to shift to the middle. Conversely, the spring 14 will rebound, causing the dividing line 123 to return to the right. In this way, the amount of cutting fluid is dynamically adjusted to avoid too much cutting fluid flowing to the left side of the first filter medium 3.

[0039] Example 2 Based on Example 1, specifically, as follows: Figure 11 and Figure 12 As shown, a baffle 15 is rotatably connected to the lower right side of the filter frame 9, and a torsion spring 16 is fixed between the filter frame 9 and the baffle 15. A top frame 17 is slidably connected to the filter frame 9 along the vertical direction. The bottom of the top frame 17 is pressed into the middle left side of the baffle 15. An inclined surface 171 is provided on the top of the top frame 17, and the inclined surface 171 is pressed into the lower part of the mounting frame 7.

[0040] To prevent impurities collected inside the filter frame 9 from falling out through the inlet and outlet when the filter frame 9 is removed, the inlet and outlet of the filter frame 9 are closed by the baffle 15 when it is removed, and the baffle 15 is automatically opened during installation. The specific operation is as follows: When the filter frame 9 is installed on the mounting frame 7, the baffle 15 is in the open state and the torsion spring 16 is in the deformed state. When the filter frame 9 is removed from the mounting frame 7, the filter frame 9 is first lifted upward. Since the top of the top frame 17 is held against the mounting frame 7, the filter frame 9 slides upward relative to the top frame 17, which drives the baffle 15 and the torsion spring 16 on it to move upward. At this time, the baffle 15 is further rotated and opened by the action of the top frame 17, and the torsion spring 16 is further deformed. Then the filter frame 9 is completely lifted off the mounting frame 7 to the right. At this time, the torsion spring 16 is reset, the baffle 15 is reversed and reset, which pushes the top frame 17 to slide upward relative to the filter frame 9 and reset, so that the baffle 15 closes the inlet and outlet of the filter frame 9. During the installation of the filter frame 9, the inclined surface 171 of the top frame 17 is pressed down relative to the filter frame 9 by the mounting frame 7. When the top frame 17 slides down, it pushes the baffle 15 to rotate upward and open, and then pushes the filter frame 9 downward. This causes the components on it to move downward as a whole, so that the filter frame 9 is hung on the mounting frame 7, thus realizing the installation of the filter frame 9.

[0041] 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, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A chip removal and filtration device for a paper tape filter, comprising a filter box (1), a drain pipe (101) connected to one side of the filter box (1), a conveying assembly (2) installed on the filter box (1), a first filter medium (3) passing through the filter box (1) laterally, an injection pipe (4) fixedly connected inside the filter box (1), the bottom of the injection pipe (4) having at least one rectangular outlet, a positioning frame (5) rotatably connected to the injection pipe (4), and the first filter medium (3) located between the conveying assembly (2) and the positioning frame (5); characterized in that, A set of slide rails (6) is fixedly connected inside the filter box (1). A first mounting block (701) is slidably connected inside the slide rails (6). A mounting frame (7) is slidably connected between the first mounting blocks (701). A set of electric push rods (8) is fixedly connected inside the filter box (1). The output end of the electric push rod (8) is fixedly connected to the adjacent first mounting block (701). A laser sensor (801) is fixedly connected to the side of the filter box (1) near the slide rails (6). A filter frame (9) is installed on the mounting frame (7). A collection plate (10) is fixedly connected to the side of the filter frame (9) near the first filter medium (3). A second filter medium (11) is laid inside the filter frame (9).

2. The chip removal and filtering device for a paper tape filter as described in claim 1, characterized in that, Both the first filter medium (3) and the second filter medium (11) are filter paper.

3. The chip removal and filtering device for a paper tape filter as described in claim 2, characterized in that, The conveying assembly (2) consists of a motor-driven roller and a mesh conveyor belt, which is used to convey the first filter medium (3).

4. The chip removal and filtering device for a paper tape filter as described in claim 3, characterized in that, Each rectangular outlet of the injection tube (4) is provided with a guide frame (12) on its lower side, and the guide frame (12) has symmetrically distributed guide grooves (121).

5. The chip removal and filtering device for a paper tape filter as described in claim 4, characterized in that, The guide frame (12) is configured as an inverted V shape.

6. The chip removal and filtering device for a paper tape filter as described in claim 5, characterized in that, The injection tube (4) is fixedly connected to a guide frame (13) symmetrically distributed along the rectangular outlet. The guide frame (12) is slidably connected to the adjacent guide frame (13) through a second mounting block (122). A dividing line (123) is provided on the guide frame (12). The dividing line (123) is located between the symmetrically distributed guide grooves (121) and the dividing line (123) is biased to one side. A spring (14) is fixedly connected between the second mounting block (122) and the adjacent guide frame (13).

7. The chip removal and filtering device for a paper tape filter as described in claim 6, characterized in that, The filter frame (9) is rotatably connected to a baffle (15), and a torsion spring (16) is fixed between the filter frame (9) and the baffle (15). A top frame (17) is slidably connected to the filter frame (9), the top of the top frame (17) is in contact with the filter frame (9), and the bottom of the top frame (17) is pressed against the baffle (15).

8. The chip removal and filtering device for a paper tape filter as described in claim 7, characterized in that, The top of the top frame (17) is provided with an inclined surface (171), which is pressed together with the mounting frame (7).

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