Vertical filtering device for PET (Polyethylene Terephthalate) sheet raw materials

Abstract

The invention discloses a PET sheet raw material vertical filtering device, and belongs to the technical field of PET sheet raw material filtering, the PET sheet raw material vertical filtering device comprises a lower tank body and an upper tank body, the upper end of the lower tank body is connected with the upper tank body, the side surface of the lower tank body is provided with a discharge port, the lower end of the side surface of the upper tank body is provided with supporting legs, and the side surface of the upper tank body is provided with a feed port. According to the invention, the phenomenon that the filtering effect of the equipment is reduced or filtering cannot be carried out due to the fact that a filter screen or other filters of the equipment are blocked by foreign matters in the use process because self-cleaning cannot be carried out continuously is solved. A first fixing sleeve and a guide rod are driven to rotate through friction force, so that a filtering disc is driven to vibrate and rotate, large-particle impurities are collected while the filtering effect of the filtering disc is improved, then the equipment can be continuously self-cleaned in the using process, and it is guaranteed that the equipment can be continuously used.

Description

Technical Field

[0001] This invention relates to the field of PET sheet raw material filtration technology, specifically a vertical filtration device for PET sheet raw materials. Background Technology

[0002] Before using PET sheet raw materials, a filtration device is needed to filter them, thereby reducing impurities and ensuring the quality of the finished product. However, general filtration devices have some drawbacks, such as:

[0003] Ordinary filtration devices cannot continuously self-clean during use, which can cause the filter screen or other filters to become clogged with foreign objects during use. This leads to a decrease in the filtration effect or even a failure to filter, thus preventing the device from operating effectively and continuously for a long period of time, which is detrimental to the use of the device. Summary of the Invention

[0004] The purpose of this invention is to provide a vertical filtration device for PET sheet raw materials, which can self-clean the equipment, improve the filtration effect, and solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: comprising a lower tank and an upper tank, wherein the upper end of the lower tank is connected to the upper tank, a discharge port is provided on the side of the lower tank, a support leg is provided at the lower end of the side of the upper tank, a feed port is provided on the side of the upper tank, a motor is provided at the top inside the upper tank, the output end of the motor is located at the bottom, and the output end of the motor is connected to a fixed shaft, a central rod is threadedly connected to the bottom outer side of the fixed shaft, a centrifuge tank is connected to the outer side of the central rod, and screening holes are evenly distributed on the outer side of the centrifuge tank.

[0006] Preferably, the upper tank body is provided with a first guide plate and a storage ring at its upper end. The first guide plate is funnel-shaped and located above the storage ring. The storage ring is stepped inside. A filter plate is rotatably arranged on the inner side of the storage ring. A cleaning plate is slidably arranged on the outer side of the filter plate. The cleaning plate is slidably arranged inside the storage ring. The bottom of the storage ring is threadedly connected to a storage tank.

[0007] Preferably, a first fixing sleeve is rotatably provided on the outer side of the fixed shaft, a guide rod is provided at equal angles on the outer side of the first fixing sleeve, a telescopic damping rod is provided inside the side of the fixed shaft, and a support spring is provided between the extended end of the telescopic damping rod and the fixed end, and the extended end of the telescopic damping rod is connected to the first fixing sleeve.

[0008] Preferably, the filter disc has a slide rail on its inner side, and a semi-cylindrical guide block is provided at the top of the slide rail, with the guide rod embedded inside the slide rail.

[0009] Preferably, a fixing frame and a second guide plate are respectively provided on the lower inner side of the upper tank body. The upper center of the fixing frame is higher than the sides, and fixing holes are opened on both sides of the upper end of the fixing frame. The second guide plate is located below the fixing frame, and a guide channel with a rectangular cross-section is opened inside the second guide plate.

[0010] Preferably, the lower end of the fixed frame is rotatably provided with rotating shafts on both sides, and one end of the rotating shaft is connected to a micro motor. A conveyor chain is provided on the outer side of the rotating shaft, and magnetic blocks are equidistantly arranged on the outer side of the conveyor chain. The bottom of the conveyor chain travels in the opposite direction to the material movement direction. A collecting plate is provided on the side of the fixed frame near the inner conveyor chain. The collecting plate is in contact with the conveyor chain. The interior of the fixed frame is hollow, and a second fixing sleeve is threaded to the bottom of the fixed frame.

[0011] Preferably, a fixing seat is provided on the inner side of the lower tank, and the centrifuge tank is embedded in the fixing seat, with the upper opening of the centrifuge tank fitting against the second guide plate.

[0012] Preferably, an electric push rod is provided on the inner side of the fixed base, and a blocking rod is rotatably provided at the output end of the electric push rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] This invention uses friction to drive the first fixed sleeve and guide rod to rotate, thereby causing the filter disc to vibrate and rotate. This increases the filtration effect of the filter disc while collecting large particulate impurities. When filtering impurities such as iron filings, magnetic blocks are used for adsorption. Then, a collection plate cleans the impurities on the surface of the magnetic blocks. Finally, a centrifuge tank is used to centrifuge and filter small particulate impurities. This allows the equipment to continuously self-clean during use, ensuring its continuous operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall side section structure of the present invention;

[0017] Figure 3 This is a top view schematic diagram of the fixed shaft and filter disc mounting structure of the present invention;

[0018] Figure 4 This is a three-dimensional structural diagram of the fixed shaft of the present invention;

[0019] Figure 5 This is a top view of the installation structure of the lower tank and the fixing frame of the present invention;

[0020] Figure 6This is a three-dimensional structural diagram of the mounting frame and the second guide plate of the present invention.

[0021] Figure 7 This is a schematic diagram of the front sectional view of the mounting structure of the fixing frame and the second guide plate of the present invention;

[0022] Figure 8 This is a three-dimensional structural diagram of the centrifuge tank of the present invention;

[0023] Figure 9 This is a schematic diagram of the mounting structure of the fixing seat and the blocking rod of the present invention.

[0024] In the diagram: 1. Lower tank; 11. Discharge port; 2. Upper tank; 21. Inlet; 22. First guide plate; 23. Storage ring; 3. Motor; 31. Fixed shaft; 32. Telescopic damping rod; 33. Support spring; 34. First fixed sleeve; 35. Guide rod; 4. Filter disc; 41. Slide rail; 42. Guide block; 43. Cleaning plate; 44. Storage tank; 5. Fixed frame; 51. Fixed hole; 52. Rotating shaft; 53. Conveyor chain; 54. Magnetic block; 55. Collection plate; 56. Second fixed sleeve; 57. Second guide plate; 6. Centrifuge tank; 61. Screening hole; 62. Center rod; 7. Fixed seat; 71. Electric push rod; 72. Blocking rod. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0027] Combination Figures 1-9 The present invention provides a vertical filtration device for PET sheet raw materials, comprising a lower tank 1 and an upper tank 2. The upper tank 2 is connected to the upper end of the lower tank 1. A discharge port 11 is provided on the side of the lower tank 1. A support leg is provided at the lower end of the side of the upper tank 2. A feed port 21 is provided on the side of the upper tank 2. An electric motor 3 is provided at the top inside the upper tank 2. The output end of the electric motor 3 is located at the bottom and is connected to a fixed shaft 31. A central rod 62 is threadedly connected to the bottom outer side of the fixed shaft 31. A centrifuge tank 6 is connected to the outer side of the central rod 62. Screening holes 61 are evenly distributed on the outer side of the centrifuge tank 6.

[0028] It should be noted that when the device is in use, the material is added into the upper tank 2 through the feed port 21. After being filtered by the equipment, the material flows into the lower tank 1 and is then taken out through the discharge port 11. The material goes through three steps during filtration: large particle impurity filtration, adsorption filtration, and small particle impurity filtration. When filtering small particle impurities, the motor 3 drives the fixed shaft 31, the central rod 62, and the centrifuge tank 6 to rotate. When the centrifuge tank 6 rotates, it drives the material to rotate, thereby filtering the small particle impurities through the screening holes 61.

[0029] In this embodiment, a first guide plate 22 and a storage ring 23 are respectively provided at the upper end of the upper tank 2. The first guide plate 22 is funnel-shaped and located above the storage ring 23. The interior of the storage ring 23 is stepped. A filter plate 4 is rotatably provided on the inner side of the storage ring 23. A cleaning plate 43 is slidably provided on the outer side of the filter plate 4. The cleaning plate 43 is slidably provided inside the storage ring 23. A storage tank 44 is threadedly connected to the bottom of the storage ring 23.

[0030] In this embodiment, a first fixing sleeve 34 is rotatably provided on the outer side of the fixed shaft 31, a guide rod 35 is provided at equal angles on the outer side of the first fixing sleeve 34, a telescopic damping rod 32 is provided inside the side of the fixed shaft 31, and a support spring 33 is provided between the extended end of the telescopic damping rod 32 and the fixed end, and the extended end of the telescopic damping rod 32 is connected to the first fixing sleeve 34.

[0031] In this embodiment, a slide 41 is provided on the inner side of the filter disc 4, and a semi-cylindrical guide block 42 is provided on the top of the slide 41. The guide rod 35 is embedded in the inside of the slide 41.

[0032] It should be noted that after the material enters the upper tank 2 through the feed port 21, it will come to the surface of the first guide plate 22. Then, guided by the first guide plate 22, the material will flow into the surface of the filter plate 4. Since the gap between the filter plate 4 and the fixed shaft 31 is small, it will prevent the material from moving downward. When the fixed shaft 31 rotates, the support spring 33 will push the telescopic damping rod 32 to move outward. When the telescopic damping rod 32 moves inward, there is a certain resistance. Therefore, the telescopic damping rod 32 will give the first fixed sleeve 34 a stable frictional force. Since the first fixed sleeve 34 is driven to rotate by friction, a speed difference is formed between the fixed shaft 31 and the first fixed sleeve 34. The speed of the first fixed sleeve 34 is much smaller than the speed of the fixed shaft 31, so as to avoid the first fixed sleeve 34 affecting the rotation of the fixed shaft 31.

[0033] When the first fixed sleeve 34 rotates, it drives the guide rod 35 to rotate. The frictional resistance between the filter disc 4, cleaning plate 43, and storage ring 23 is high, thus reducing the rotational speed of the filter disc 4 and cleaning plate 43. This results in the rotational speed of the filter disc 4 and cleaning plate 43 being lower than that of the first fixed sleeve 34. Therefore, when the fixed shaft 31 initially rotates, due to the high rotational resistance of the first fixed sleeve 34, filter disc 4, and cleaning plate 43, the fixed shaft 31 alone cannot drive the first fixed sleeve 34, filter disc 4, and cleaning plate 43 to rotate. When the fixed shaft 31 rotates to its maximum, it first drives the first fixed sleeve 34, filter disc 4, and cleaning plate 43 to rotate simultaneously. Subsequently, under the action of the frictional resistance of the filter disc 4 and cleaning plate 43, the guide block 42 in the slide 41 will move upwards along the inclined surface of the guide rod 35. The movement causes the filter disc 4 and cleaning plate 43 to vibrate, followed by the normal rotation of the fixed shaft 31, the first fixed sleeve 34, and the guide rod 35. The slide 41 and guide block 42 will continuously rotate and rotate at low speed under the action of friction. Thus, when using the filter disc 4 for filtration, the vibration of the filter disc 4 can prevent the filter disc 4 from clogging. The rotation of the filter disc 4 can make the material move outward continuously, increasing the filtration efficiency. The material moves downward through the filter disc 4, while large particles of impurities remain on the surface of the filter disc 4 and move outward continuously into the storage ring 23 under the action of centrifugal force. The rotation of the cleaning plate 43 can also drive the large particles of impurities in the storage ring 23 to move. Then, the large particles of impurities are stored and collected through the storage tank 44.

[0034] In this embodiment, a fixing frame 5 and a second guide plate 57 are respectively provided on the lower inner side of the upper tank body 2. The upper center of the fixing frame 5 is higher than the sides, and fixing holes 51 are opened on both sides of the upper end of the fixing frame 5. The second guide plate 57 is located below the fixing frame 5, and a guide channel with a rectangular cross-section is opened inside the second guide plate 57.

[0035] It should be noted that the material filtered by the filter plate 4 moves downward to the surface of the fixed frame 5, and then flows into the fixed hole 51 along the inclined surface at the upper end of the fixed frame 5. After that, it moves downward along the interlayer guide channel of the fixed frame 5 and the second guide plate 57.

[0036] In this embodiment, rotating shafts 52 are rotatably arranged on both sides of the lower end of the fixed frame 5, and a micro motor is connected to one end of the rotating shaft 52. A conveyor chain 53 is arranged on the outer side of the rotating shaft 52, and magnetic blocks 54 are equidistantly arranged on the outer side of the conveyor chain 53. The bottom of the conveyor chain 53 travels in the opposite direction to the material movement direction. A collecting plate 55 is arranged on the side of the fixed frame 5 near the inner side of the conveyor chain 53. The collecting plate 55 is in contact with the conveyor chain 53. The interior of the fixed frame 5 is hollow, and a second fixing sleeve 56 is threadedly connected to the bottom of the fixed frame 5.

[0037] It should be noted that the rotating shaft 52 is driven by a micro motor to rotate. When the rotating shaft 52 rotates, it drives the conveyor chain 53 to move continuously. The surface of the conveyor chain 53 is provided with magnetic blocks 54. The magnetic blocks 54 can adsorb impurities in the guide channel, thereby further filtering the impurities in the material. Then, when the conveyor chain 53 rotates, the impurities are removed by the collection plate 55, and the impurities enter the interior of the fixed frame 5 along the inclined surface of the collection plate 55, thereby collecting and processing the impurities.

[0038] In this embodiment, a fixing seat 7 is provided on the inner side of the lower tank 1, and the centrifuge tank 6 is embedded in the fixing seat 7. The upper opening of the centrifuge tank 6 is in contact with the second guide plate 57.

[0039] It should be noted that the fixed shaft 31 drives the central rod 62 and the centrifuge tank 6 to rotate. When the centrifuge tank 6 rotates, it filters small particulate impurities through the sieve hole 61.

[0040] In this embodiment, an electric push rod 71 is provided on the inner side of the fixed base 7, and a blocking rod 72 is rotatably provided at the output end of the electric push rod 71.

[0041] It should be noted that after filtration and screening are completed, the electric push rod 71 will drive the blocking rod 72 to move downward, so that the blocking rod 72 will no longer block the bottom of the centrifuge tank 6, thereby allowing impurities to flow out from the bottom of the centrifuge tank 6. When the centrifuge tank 6 rotates, the blocking rod 72 will rotate simultaneously with the centrifuge tank 6, increasing the sealing between the two. The output end of the electric push rod 71 and the blocking rod 72 are connected by a bearing to reduce friction.

[0042] Working principle: First, the material is added into the interior of the upper tank 2 through the feed port 21;

[0043] Large particle impurity filtration: The material is guided into the surface of the filter disc 4 by the first guide plate 22. The filter disc 4 filters the large particles and leaves them on the surface of the filter disc 4. Then, the friction force drives the first fixed sleeve 34 and the guide rod 35 to rotate. The frictional resistance between the filter disc 4, the cleaning plate 43 and the storage ring 23 is large, so the first fixed sleeve 34 and the guide rod 35 will continuously drive the filter disc 4 and the cleaning plate 43 to vibrate and rotate. Vibration prevents the filter disc 4 from clogging and increases the filtration efficiency. At the same time, the large particles move outward into the storage ring 23 under the action of centrifugal force. The rotation of the cleaning plate 43 can drive the large particles in the storage ring 23 to move. Then, the large particles are stored and collected in the storage tank 44.

[0044] Adsorption filtration: The material moves downward and flows into the fixed hole 51 along the inclined surface of the fixed frame 5. Then it moves downward along the guide channel of the second guide plate 57. At this time, the impurities in the guide channel are adsorbed and filtered by the magnetic block 54. As the conveyor chain 53 rotates, the position of the magnetic block 54 and the impurities will be adjusted. Then the impurities on the surface of the magnetic block 54 are removed by the collection plate 55, so that the impurities enter the interior of the fixed frame 5 along the inclined surface of the collection plate 55, and are collected.

[0045] Small particulate impurity filtration: The fixed shaft 31 drives the central rod 62 and the centrifuge tank 6 to rotate. When the centrifuge tank 6 rotates, small particulate impurities are filtered through the sieve hole 61.

[0046] After filtration, the material is collected through the discharge port 11. The lower tank 1 and the upper tank 2 can be separated by removing the bolts inside the lower tank 1 and the upper tank 2. At this time, the impurities on the surface of the fixed seat 7 can be cleaned. The centrifuge tank 6 is rotated to separate the central rod 62 and the fixed shaft 31. Then the second fixed sleeve 56 is rotated to separate it from the fixed frame 5, and the inside of the fixed frame 5 is cleaned. After that, the equipment can be returned to its original position. The storage tank 44 and the storage ring 23 are threaded together. The storage tank 44 can be disassembled to clean its inside.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical filtration device for PET sheet raw materials, comprising a lower tank (1) and an upper tank (2), characterized in that, The upper end of the lower tank (1) is connected to the upper tank (2). The side of the lower tank (1) is provided with a discharge port (11). The lower end of the side of the upper tank (2) is provided with a support leg. The side of the upper tank (2) is provided with a feed port (21). The top of the interior of the upper tank (2) is provided with a motor (3). The output end of the motor (3) is located below, and the output end of the motor (3) is connected to a fixed shaft (31). The bottom outer side of the fixed shaft (31) is threaded with a central rod (62). The outer side of the central rod (62) is connected to a centrifuge tank (6). The outer side of the centrifuge tank (6) is evenly distributed with screening holes (61).

2. The vertical filtration device for PET sheet raw materials according to claim 1, characterized in that, The upper tank (2) is provided with a first guide plate (22) and a storage ring (23) at the upper end. The first guide plate (22) is funnel-shaped and located above the storage ring (23). The storage ring (23) is stepped inside. A filter plate (4) is rotatably provided on the inner side of the storage ring (23). A cleaning plate (43) is slidably provided on the outer side of the filter plate (4). The cleaning plate (43) is slidably provided inside the storage ring (23). A storage tank (44) is threadedly connected to the bottom of the storage ring (23).

3. The vertical filtration device for PET sheet raw materials according to claim 2, characterized in that, A first fixed sleeve (34) is rotatably provided on the outer side of the fixed shaft (31). A guide rod (35) is provided at equal angles on the outer side of the first fixed sleeve (34). A telescopic damping rod (32) is provided inside the side of the fixed shaft (31). A support spring (33) is provided between the extended end of the telescopic damping rod (32) and the fixed end. The extended end of the telescopic damping rod (32) is connected to the first fixed sleeve (34).

4. A vertical filtration device for PET sheet raw materials according to claim 3, characterized in that, The filter disc (4) has a slide (41) on its inner side, and a semi-cylindrical guide block (42) is provided on the top of the slide (41). The guide rod (35) is embedded in the inside of the slide (41).

5. A vertical filtration device for PET sheet raw materials according to claim 1, characterized in that, The inner side of the upper tank (2) is provided with a fixing frame (5) and a second guide plate (57). The upper center of the fixing frame (5) is high and the sides are low. Fixing holes (51) are opened on both sides of the upper end of the fixing frame (5). The second guide plate (57) is located below the fixing frame (5). The interior of the second guide plate (57) is provided with a guide channel with a rectangular cross-section.

6. A vertical filtration device for PET sheet raw materials according to claim 5, characterized in that, The lower end of the fixed frame (5) is rotatably provided with rotating shafts (52) on both sides, and one end of the rotating shafts (52) is connected to a micro motor. A conveyor chain (53) is provided on the outer side of the rotating shafts (52), and magnetic blocks (54) are equidistantly provided on the outer side of the conveyor chain (53). The bottom of the conveyor chain (53) travels in the opposite direction to the material movement direction. A collection plate (55) is provided on the side of the fixed frame (5) near the inner conveyor chain (53). The collection plate (55) is in contact with the conveyor chain (53). The interior of the fixed frame (5) is hollowed out, and a second fixed sleeve (56) is threadedly connected to the bottom of the fixed frame (5).

7. A vertical filtration device for PET sheet raw materials according to claim 5, characterized in that, The lower tank (1) is provided with a fixed seat (7) on its inner side. The centrifuge tank (6) is embedded in the fixed seat (7) and the upper opening of the centrifuge tank (6) is in contact with the second guide plate (57).

8. A vertical filtration device for PET sheet raw materials according to claim 7, characterized in that, An electric push rod (71) is provided on the inner side of the fixed base (7), and a blocking rod (72) is rotatably provided at the output end of the electric push rod (71).

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