Permanent magnet cylinder with lightweight design

Abstract

The utility model provides a permanent magnet cylinder with lightweight design, which relates to a permanent magnet cylinder and comprises rodless cylinders mounted on two sides of a cylinder body and middle connecting plates connected to driving ends of the rodless cylinders, and the middle connecting plates penetrate through cylinder moving notches on two sides of the cylinder body to be connected with magnet cleaning rings in the cylinder body. The magnet cleaning ring is driven by the rodless air cylinder to ascend and descend and used for scraping and sweeping impurities adsorbed outside the permanent magnet, a silica gel sealing gasket is further fixed in the air cylinder moving notch and used for sealing the air cylinder moving notch and preventing material leakage, and the upper side and the lower side of the middle connecting plate are provided with seamed edges. According to the utility model, the long-stroke rodless air cylinder is adopted to drive demagnetization, and meanwhile, the silica gel sealing gasket is used to seal the air cylinder moving notch of the cylinder body, so that the problems that the space requirement is too high, the structure is not compact, and the three-dimensional height is too high are solved; and meanwhile, the installation and manufacturing cost is low.

Description

Technical Field

[0001] This utility model relates to a permanent magnet cylinder structure, and more particularly to a lightweight permanent magnet cylinder design. Background Technology

[0002] In the food, grain, and feed processing industries, iron impurities may be present in powdered or granular materials. These impurities can adversely affect the quality and safety of finished products and may even affect food safety standards. Therefore, using permanent magnet cylinders for the separation and filtration of iron impurities is a common and effective technical means that is widely used in this industry.

[0003] Currently, common permanent magnet cylinder cleaning equipment adopts a horizontal automatic cleaning structure, with the cylinders or electric cylinders usually placed horizontally outward. This design requires a large amount of lateral space for the equipment and usually requires a custom-made installation base. This makes it impossible to meet the installation requirements in many working environments, and even requires additional areas for installation, thus increasing hidden operating costs. In addition, the horizontal structure usually adopts a double-cylinder design, in which the right cylinder (the part that installs the permanent magnets) is pushed towards the left material cylinder. This will cause poor concentricity, poor sealing, and easy leakage problems. In order to drive the equipment, multiple power sources (such as cylinders) are usually used, which increases the manufacturing cost of the equipment and makes maintenance and debugging more complicated.

[0004] On the other hand, existing technologies also include permanent magnet cylinders with vertical structures, such as the self-cleaning permanent magnet cylinder in the patent (publication number: CN218486251U). Although this design can save horizontal space, its vertical dimension is large and it has high requirements for the height of the working environment. For a vertical permanent magnet cylinder of the same diameter, its total height is usually about 1.5 times that of a horizontal structure, and the cleaning ring stroke is shorter, which also affects its working efficiency and the applicability of the equipment.

[0005] These shortcomings and deficiencies in existing technologies lead to limitations in equipment in terms of space requirements, sealing, and cost, making it difficult to meet the needs of different working environments and potentially increasing the complexity of maintenance and operation. Utility Model Content

[0006] To address the aforementioned technical problems, the purpose of this utility model is to provide a lightweight permanent magnet cylinder that uses a long-stroke rodless cylinder for magnetization and a silicone sealing gasket to seal the cylinder's movement slot. This solves the problems of excessive space requirements, non-compact structure, and excessive height, while also reducing the installation and manufacturing costs of the equipment.

[0007] This utility model provides the following technical solution:

[0008] A lightweight permanent magnet cylinder includes rodless cylinders mounted on both sides of the cylinder body and an intermediate connecting plate connected to the base of the rodless cylinder drive end. The intermediate connecting plate passes through cylinder moving slots on both sides of the cylinder body and is connected to a magnetic cleaning ring inside the cylinder body. The magnetic cleaning ring is driven to rise and fall by the rodless cylinders to scrape impurities adsorbed outside the permanent magnet, causing the impurities to detach from the permanent magnet and fall into an outlet cone at the bottom of the cylinder body. A silicone sealing gasket is also fixed inside the cylinder moving slot to seal the cylinder moving slot and prevent material leakage. The upper and lower sides of the intermediate connecting plate have edges, and the middle of the edges protrudes outward to break the diamond shape opposite the silicone sealing gasket. The design of the permanent magnet cylinder as a rodless cylinder provides a longer stroke, enabling more efficient material handling. The rodless cylinder is fixed to both sides of the cylinder, and its drive end is directly connected to the magnet cleaning ring via a connecting plate passing through the cylinder's moving slot. This ensures that the height of the permanent magnet does not need to be increased by the height of the rodless cylinder, thus reducing the overall height of the equipment. Furthermore, the cylinder's moving slot is sealed with a silicone gasket. When the rodless cylinder rises or falls, the diamond-shaped blade breaks through the silicone gasket, reducing resistance to vertical movement. The overall structure is simple and compact, with lower installation and manufacturing costs.

[0009] Preferably, a pressure plate is also fixed to the outside of the cylinder for pressing onto the silicone sealing gasket, and the pressure plate is used to reinforce the silicone sealing gasket.

[0010] Preferably, the cylinder moving slot also has a reinforced sealing cavity. The side wall of the reinforced sealing cavity has a channel groove for the intermediate connecting plate to pass through. The channel groove is sealed by a fixed brush. The brush can further prevent dust. When the intermediate connecting plate moves up and down, it breaks the brush with its edge. The bottom of the reinforced sealing cavity also has a guide port. The guide port is used to connect to the outlet cone below the cylinder. Therefore, if material flows out from the silicone sealing gasket, it can be further protected by the reinforced sealing cavity, so that the material flows back into the intermediate channel of the material from the guide port below and flows out of the outlet cone.

[0011] Preferably, the bottom end of the permanent magnet is fixed to the center of the cylinder by a mounting bracket, and the outer periphery of the permanent magnet has three-level magnetic rings distributed in parallel from top to bottom. The inner wall of the cylinder is fixed with three-level guide plates corresponding to the three-level magnetic rings. The guide plates have a guide surface that is inclined downward toward the corresponding magnetic ring of the permanent magnet. Thus, by using three-level magnetic rings instead of a fully magnetic permanent magnet, the cost of the magnet can be reduced. Also, due to the corresponding arrangement of the three-level magnetic rings and the three-level guide plates, the magnetic adsorption efficiency can be relatively improved. That is, when the material passes over each magnetic ring, it can be guided by the first-level guide plate, so that the material passing by is as close to the magnetic ring as possible, thereby improving the working efficiency of the permanent magnet.

[0012] Preferably, the cylinder body also has a protective cover mounting plate for covering the rodless cylinder, thereby completely isolating the rodless cylinder from the outside world. This can also form a third sealing effect of the permanent magnet cylinder, thereby improving the sealing performance and safety of the device.

[0013] Preferably, the outlet of the outlet cone receives a set of inverted Y-shaped tee pipes. The two outlets at the bottom of the Y-shaped tee pipes are respectively the impurity outlet and the material outlet. The impurity outlet and the material outlet are separated by a set of deflection plates. A three-way cylinder outside the Y-shaped tee pipe is used to drive the deflection plates to rotate, so as to rotate the deflection plates to the top of the impurity outlet to realize the discharge of the material after impurity removal, or to rotate the deflection plates to the top of the material outlet to realize the dropping of impurities when the rodless cylinder drives the magnetic cleaning ring to descend.

[0014] Preferably, the top of the cylinder has an inlet guide ring for guiding the incoming material flow to the center of the permanent magnet, and the magnet cleaning ring is located below the inlet guide ring, and its inner diameter is larger than the bottom diameter of the inlet guide ring. Thus, the inlet guide ring can also protect the magnet cleaning ring.

[0015] Preferably, the magnet cleaning ring includes a central circumferential stainless steel main plate and circumferential PU polyurethane flow plates locked on both sides of the stainless steel main plate. The inner diameter of the PU polyurethane flow plates is slightly smaller than the outer diameter of the permanent magnet cylinder. For example, the inner diameter of the PU polyurethane flow plates is D398 and the outer diameter of the permanent magnet cylinder is D400. The two ends of the stainless steel main plate are connected to the connecting intermediate plate.

[0016] Preferably, an inspection door is also installed on the side wall of the cylinder, and a flow guide block is welded to the inner side of the inspection door. The flow guide block and the flow guide block on the inner wall of the cylinder correspond to form a three-stage annular flow guide plate. In this way, while providing the flow guiding effect, it also facilitates later maintenance.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a lightweight permanent magnet cylinder design, in which the cylinder is designed as a rodless cylinder, providing a longer stroke and adapting to higher efficiency material handling. The rodless cylinder is fixed on both sides of the cylinder body, and its drive end is directly connected to the magnet cleaning ring through the middle connecting plate passing through the cylinder movement slot. This ensures that the height of the permanent magnet does not need to be increased by the height of the rodless cylinder, thereby reducing the overall height of the equipment. The cylinder movement slot is sealed by a silicone gasket, and when the rodless cylinder moves up and down, the silicone gasket is broken by a diamond-shaped blade, which reduces the resistance of the up and down movement. The overall structure is relatively simple and compact, and the installation and manufacturing costs are also low. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 yes Figure 1 A three-dimensional diagram from another perspective;

[0022] Figure 3 This is a longitudinal cross-sectional view of the permanent magnet cylinder of this utility model;

[0023] Figure 4 yes Figure 3 A magnified view of part B in the middle section;

[0024] Figure 5 This is a schematic diagram of the cylinder structure;

[0025] Figure 6 This is a schematic diagram of the middle connecting plate edge and the diamond-shaped knife;

[0026] Markings in the diagram:

[0027] 1. Cylinder; 2. Rodless cylinder; 3. Base; 4. Magnetic cleaning ring; 5. Inspection door; 6. Permanent magnet; 7. Intermediate connecting plate; 8. Protective cover mounting plate; 9. Silicone sealing gasket; 10. Pressure plate; 11. Brush; 12. Y-type tee pipe; 13. T-shaped cylinder; 14. Edge; 15. Diamond-shaped knife; 16. Reinforced sealing cavity; 17. Outlet cone; 18. Guide port; 19. Magnetic ring; 20. Guide plate; 21. Inlet guide ring; 22. Mounting bracket; 23. Deflection plate; 41. Stainless steel main plate; 42. PU polyurethane flow plate. Detailed Implementation

[0028] like Figure 1-6As shown, a lightweight permanent magnet cylinder, in this embodiment, includes rodless cylinders 2 installed on both sides of the cylinder body 1 and an intermediate connecting plate 7 connected to the drive end base 3 of the rodless cylinders 2. The intermediate connecting plate 7 passes through the cylinder moving slots on both sides of the cylinder body 1 and is connected to the magnet cleaning ring 4 inside the cylinder body 1. The magnet cleaning ring 4 is driven to rise and fall by the rodless cylinders 2 to scrape the impurities adsorbed on the outside of the permanent magnet 6, so that the impurities detach from the permanent magnet 6 and fall into the outlet cone 17 below the cylinder body 1. A silicone sealing gasket 9 is also fixed in the cylinder moving slot to seal the cylinder moving slot and prevent material leakage. The upper and lower sides of the intermediate connecting plate 7 have edges 14, and the middle part of the edges 14 protrudes outward to break the silicone sealing gasket. The diamond-shaped knife 15 of the sealing gasket 9, thus, because the cylinder of the permanent magnet cylinder is designed as a rodless cylinder 2, can provide a longer stroke and adapt to higher efficiency material handling. The rodless cylinder 2 is fixed on both sides of the cylinder body 1, and its drive end is directly connected to the magnet cleaning ring 4 through the middle connecting plate 7 passing through the cylinder moving slot. This ensures that the height of the permanent magnet 6 does not need to be increased by the height of the rodless cylinder 2, thereby reducing the overall height of the equipment. The cylinder moving slot is sealed by the silicone sealing gasket 9. When the rodless cylinder 2 is raised and lowered, the diamond-shaped knife 15 breaks the silicone sealing gasket 9 to move up and down, thereby reducing the resistance of the up and down movement. The overall structure is relatively simple and compact, and the installation and manufacturing costs are also low.

[0029] A pressure plate 10 is also fixed to the outside of the cylinder 1 for pressing onto the silicone sealing gasket 9. The pressure plate 10 is used to reinforce the silicone sealing gasket 9.

[0030] The cylinder moving slot also has a reinforced sealing cavity 16. The side wall of the reinforced sealing cavity 16 has a channel groove for the intermediate connecting plate 7 to pass through. The channel groove is sealed by a fixed brush 11. The brush 11 can further prevent dust. When the intermediate connecting plate 7 moves up and down, it breaks the brush 11 through the edge 14. The bottom of the reinforced sealing cavity 16 also has a guide port 18. The guide port 18 is used to connect to the outlet cone 17 below the cylinder 1. Therefore, if material flows out from the silicone sealing gasket 9, it can be further protected by the reinforced sealing cavity 16, so that the material flows back into the intermediate channel of the material from the guide port 18 below and flows out of the outlet cone 17.

[0031] The bottom end of the permanent magnet 6 is fixed to the center of the cylinder 1 by the mounting bracket 22. The outer periphery of the permanent magnet 6 has three-level magnetic rings 19 arranged in parallel from top to bottom. The inner wall of the cylinder 1 is fixed with a three-level guide plate 20 corresponding to the three-level magnetic rings 19. The guide plate 20 has a guide surface that is inclined downward toward the magnetic rings 19 of the permanent magnet 6. By using three-level magnetic rings 19 instead of a fully magnetic permanent magnet 6, the cost of the magnet can be reduced. Also, due to the corresponding arrangement of the three-level magnetic rings 19 and the three-level guide plate 20, the magnetic adsorption efficiency can be improved. That is, when the material passes over each magnetic ring 19, it can be guided by the first-level guide plate 20, so that the material passes as close to the magnetic rings 19 as possible, thereby improving the working efficiency of the permanent magnet 6.

[0032] The cylinder body 1 also has a protective cover mounting plate 8 for covering the rodless cylinder 2, so as to completely isolate the rodless cylinder 2 from the outside world. This can also form a third sealing effect of the permanent magnet cylinder, thereby improving the sealing performance and safety of the device.

[0033] The outlet of the outlet cone 17 receives a set of inverted Y-shaped tee pipes 12. The two outlets at the bottom of the Y-shaped tee pipes 12 are the impurity outlet and the material outlet, respectively. The impurity outlet and the material outlet are separated by a set of deflection plates 23. The three-way cylinder 13 outside the Y-shaped tee pipes 12 is used to drive the deflection plates 23 to rotate, so as to rotate the deflection plates 23 to the top of the impurity outlet to realize the discharge of the material after impurity removal, or to rotate the deflection plates 23 to the top of the material outlet to realize the dropping of impurities when the rodless cylinder 2 drives the magnet cleaning ring 4 to descend.

[0034] The top of the cylinder 1 has an inlet guide ring 21 for guiding the incoming material flow to the center of the permanent magnet 6, and the magnet cleaning ring 4 is located below the inlet guide ring 21, and its inner diameter is larger than the bottom diameter of the inlet guide ring 21. Thus, the inlet guide ring 21 can also protect the magnet cleaning ring 4.

[0035] The magnet cleaning ring 4 includes a central circumferential stainless steel main plate 41 and circumferential PU polyurethane flow plates 42 locked on both sides of the stainless steel main plate 41. The inner diameter of the PU polyurethane flow plates 42 is slightly smaller than the outer diameter of the permanent magnet 6. For example, the inner diameter of the PU polyurethane flow plates 42 is D398, and the outer diameter of the permanent magnet 6 is D400. Both ends of the stainless steel main plate 41 are connected to the connecting intermediate plate.

[0036] An inspection door 5 is also installed on the side wall of the cylinder 1. A guide block 1 is welded to the inside of the inspection door 5. The guide block 1 and the guide block 2 on the inner wall of the cylinder 1 correspond to form a three-stage annular guide plate 20. In this way, it can provide the effect of guiding the flow and also facilitate the later maintenance.

[0037] The working principle of this utility model is as follows: In the lightweight permanent magnet cylinder provided by this utility model, the cylinder of the permanent magnet cylinder is designed as a rodless cylinder 2, which can provide a longer stroke and adapt to higher efficiency material handling. The rodless cylinder 2 is fixed on both sides of the cylinder body 1. Its driving end is directly connected to the magnet cleaning ring 4 through the middle connecting plate 7 passing through the cylinder moving slot. This ensures that the height of the permanent magnet 6 does not need to be increased by the height of the rodless cylinder 2, thereby reducing the overall height of the equipment. The cylinder moving slot is sealed by a silicone sealing gasket 9. When the rodless cylinder 2 is raised or lowered, the silicone sealing gasket 9 is broken by a diamond-shaped knife 15 to move up and down, thereby reducing the resistance of the up and down movement. The overall structure is relatively simple and compact, and the installation and manufacturing costs are also low.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lightweight permanent magnet cylinder, characterized in that, The device includes rodless cylinders installed on both sides of the cylinder body and an intermediate connecting plate connected to the base of the rodless cylinder drive end. The intermediate connecting plate passes through the cylinder moving slots on both sides of the cylinder body and is connected to the magnetic cleaning ring inside the cylinder body. The magnetic cleaning ring is driven to rise and fall by the rodless cylinders to scrape off impurities adsorbed outside the permanent magnet, so that the impurities detach from the permanent magnet and fall into the outlet cone below the cylinder body. A silicone sealing gasket is also fixed inside the cylinder moving slot to seal the cylinder moving slot and prevent material leakage. The upper and lower sides of the intermediate connecting plate have edges, and the middle of the edges protrudes outward to have a diamond-shaped knife for breaking the silicone sealing gasket.

2. The lightweight permanent magnet cylinder according to claim 1, characterized in that, The cylinder body is also fixed with a pressure plate for pressing against the silicone sealing gasket.

3. The lightweight permanent magnet cylinder according to claim 1, characterized in that, The cylinder moving slot also has a reinforced sealing cavity. The side wall of the reinforced sealing cavity has a channel groove for the intermediate connecting plate to pass through. The channel groove is sealed by a fixed brush. The bottom of the reinforced sealing cavity also has a guide port for connecting to the outlet cone below the cylinder.

4. The lightweight permanent magnet cylinder according to claim 1, characterized in that, The bottom end of the permanent magnet is fixed to the center of the cylinder by a mounting bracket, and the outer periphery of the permanent magnet has three-level magnetic rings distributed in parallel from top to bottom. The inner wall of the cylinder is fixed with three-level guide plates corresponding to the three-level magnetic rings. The guide plates have a guide surface that is inclined downward toward the magnetic rings of the permanent magnet.

5. A lightweight permanent magnet cylinder according to claim 1, characterized in that, The cylinder body also has a protective cover mounting plate for covering the rodless cylinder.

6. The lightweight permanent magnet cylinder according to claim 1, characterized in that, The outlet of the outlet cone receives a set of inverted Y-shaped tee pipes. The two outlets at the bottom of the Y-shaped tee pipes are the impurity outlet and the material outlet, respectively. The impurity outlet and the material outlet are separated by a set of deflection plates. A three-way cylinder outside the Y-shaped tee pipe is used to drive the deflection plates to rotate, so as to rotate the deflection plates to the top of the impurity outlet to realize the discharge of the material after impurity removal, or to rotate the deflection plates to the top of the material outlet to realize the dropping of impurities when the rodless cylinder drives the magnetic cleaning ring to descend.

7. A lightweight permanent magnet cylinder according to claim 1, characterized in that, The top of the cylinder has an inlet guide ring for guiding the incoming material flow to the center of the permanent magnet, and the magnet cleaning ring is located below the inlet guide ring, and its inner diameter is larger than the bottom diameter of the inlet guide ring.

8. A lightweight permanent magnet cylinder according to claim 1, characterized in that, The magnet cleaning ring includes a central circumferential stainless steel main plate and circumferential PU polyurethane flow plates locked on both sides of the stainless steel main plate. The inner diameter of the PU polyurethane flow plates is slightly smaller than the outer diameter of the permanent magnet cylinder, and both ends of the stainless steel main plate are connected to the connecting intermediate plate.

9. A lightweight permanent magnet cylinder according to claim 1, characterized in that, An inspection door is also installed on the side wall of the cylinder. A flow guide block is welded to the inside of the inspection door. The flow guide block and the flow guide block on the inner wall of the cylinder correspond to form a three-stage annular flow guide plate.

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