Magnetic coupling type rodless cylinder

Abstract

The application discloses a magnetic coupling type rodless air cylinder. The application comprises a mounting bottom plate, two mounting side blocks fixedly installed on the top of the mounting bottom plate, installation grooves formed in the top of the two mounting side blocks, dustproof structures fixedly installed on the top of the two mounting side blocks, two winding seats included in the two dustproof structures, and rotating rods fixedly sleeved with the two winding seats. In the application, when the device is running, the inner magnetic ring drives the outer magnetic ring to slide on the inner cylinder left and right when the gas enters the inner cylinder through the air inlet hole. At this time, the dustproof cloth is connected with the extension block due to the setting of the clockwork. Therefore, the dustproof cloths on the two sides are pulled out and wound up while the moving block is running, so that the normal operation of the outer magnetic ring is ensured, the sealing state of the surface of the inner cylinder is ensured, the surface of the inner cylinder is prevented from being contaminated by dust and iron filings, and the normal operation of the device is affected.

Description

Technical Field

[0001] This invention relates to the field of rodless cylinder technology, and more specifically, to a magnetically coupled rodless cylinder. Background Technology

[0002] Rodless cylinders work on the same principle as ordinary cylinders, only the external connection and sealing methods are different. A rodless cylinder is a cylinder that uses a piston to connect directly or indirectly to an external actuator and make it reciprocate with the piston. The biggest advantage of this type of cylinder is that it saves installation space. It is divided into magnetic coupler rodless cylinders and mechanical rodless cylinders.

[0003] Patent No.: CN217735896U, a magnetically coupled rodless cylinder, comprising: The outer cylinder 1 has a cylindrical structure with openings at both ends; the outer cylinder 1 is preferably square to ensure that the entire cylinder can be placed stably; a sliding groove 11 extending along the axis is provided on the side of the outer cylinder 1; the inner cylinder 2 has a cylindrical structure with openings at both ends; the inner cylinder 2 is set inside the outer cylinder 1; the inner cylinder 2 is preferably made of stainless steel; two end caps 3 are respectively set at both ends of the outer cylinder 1 and respectively block the openings at both ends of the outer cylinder 1 and the inner cylinder 2; each end cap 3 is provided with an air passage 31, which connects the inside and outside of the inner cylinder 2; this cylinder realizes the transmission of the piston and the inner slider through the magnetic coupling of the first magnet and the second magnet, so that there is no need to cut grooves on the side of the inner cylinder, ensuring the sealing of the inner cylinder, thereby ensuring that the gas can stably push the piston to slide. This cylinder has an inner cylinder and an outer cylinder. The inner cylinder is used for the sliding of the piston and the inner slider, and the outer cylinder is used to protect the inner cylinder, preventing external objects from falling on the inner cylinder or colliding with the inner cylinder. The sliding of the piston and the inner slider will not be affected by external foreign objects, thereby ensuring the reliability of the operation of this cylinder.

[0004] The above-mentioned device can be further improved in actual production and use: If dust or iron filings stick to its surface during use, the cylinder will not be able to operate. Therefore, the existing cylinder needs to work in a dust-free environment. In a dust-free environment, the cylinder is affected by magnetic force and travels at a faster speed. In addition, the existing magnetically coupled rodless cylinder does not have a buffer structure. The piston inside may collide with the two ends, which may damage the internal magnetic ring. At the same time, the existing magnetically coupled rodless cylinder is not convenient to adjust the running speed of the moving block. It can only be adjusted by the size of the air jet, which makes it inconvenient to accurately control the running speed.

[0005] Therefore, a new device needs to be designed to solve the above problems, specifically a magnetically coupled rodless cylinder. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention aims to provide a magnetically coupled rodless cylinder, which features the characteristics of preventing dust and iron filings from adhering to the outer surface of the cylinder, buffering the piston inside the cylinder in a dust-free environment, and controlling the cylinder's operating speed.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a magnetically coupled rodless cylinder includes a mounting base plate, mounting side blocks fixedly mounted on both sides of the top of the mounting base plate, mounting grooves formed on the top of the two mounting side blocks, and dustproof structures fixedly mounted on the top of the two mounting side blocks. The two dustproof structures include two winding seats, rotating rods fixedly sleeved inside the two winding seats, and springs fixedly sleeved on the outer surfaces of the two rotating rods. Dustproof cloth is wound onto the outer surfaces of the two springs. Guide rollers are fixedly sleeved inside the two mounting grooves. An outer cylinder is fixedly mounted inside the two mounting side blocks, and a sealing groove is formed on the top of the outer surface of the outer cylinder. The dustproof cloths on both sides are slidably connected to the sealing grooves.

[0008] As a preferred embodiment, a sealing gasket is fixedly installed on one side of each of the two mounting side blocks, and an inner cylinder is fixedly installed inside the two sealing gaskets, with the inner cylinder installed inside the outer cylinder.

[0009] As a preferred embodiment, an inner magnetic ring is placed inside the inner cylinder, a piston is fixedly installed inside the inner magnetic ring, and an anti-deviation protrusion is fixedly installed on the top of the outer surface of the inner cylinder.

[0010] As a preferred embodiment, an outer magnetic ring is movably sleeved on the middle of the outer surface of the inner cylinder, and the outer magnetic ring is magnetically connected to the inner magnetic ring. An extension block is fixedly installed on the top of the outer magnetic ring, and connecting blocks are fixedly installed on both sides of the outer surface of the extension block. The two connecting blocks are fixedly connected to the dustproof cloths on both sides, and a movable block is fixedly installed on the top of the extension block.

[0011] As a preferred embodiment, the two mounting side blocks have four slots inside, and a buffer structure is fixedly installed in the four slots. The two buffer structures include four abutments, and a spring is fixedly installed on the left outer surface of the four abutments.

[0012] As a preferred embodiment, a stop block is fixedly installed on the left outer surface of the four springs, a buffer rod is fixedly installed on the right outer surface of the four stop blocks, the four buffer rods are tightly fitted with the stop blocks, and a buffer plate is fixedly installed on the right outer surface of the four buffer rods.

[0013] As a preferred embodiment, the two mounting side blocks are provided with air inlets, which penetrate the interior of the inner cylinder. Adjustment structures are fixedly installed on the outer surfaces of the two air inlets. The two adjustment structures include extension tubes, and a connecting tube is fixedly installed on one side of the outer surface of the two extension tubes.

[0014] As a preferred embodiment, a fixing plate is fixedly installed on one side of the outer surface of the two connecting pipes, a hexagonal groove is opened inside the two fixing plates, a vent hole is fixedly sleeved inside the two fixing plates, six sliding columns are slidably installed inside the two hexagonal grooves, and six triangular sealing plates are fixedly installed on the outer surface of the six sliding columns.

[0015] As a preferred embodiment, a rotating disk is fixedly sleeved on the outer surface of the two connecting pipes, and six straight slots are opened inside the two rotating disks, which are slidably connected to the sliding column.

[0016] As a preferred embodiment, the two rotating disks are provided with ventilation holes, and a lever is fixedly installed on the top of the outer surface of the two rotating disks. An air inlet pipe is fixedly connected to the inside of the two ventilation holes.

[0017] Compared with the prior art, the present invention provides a magnetically coupled rodless cylinder, which has the following beneficial effects: 1. In this invention, when the device is running, the inner magnetic ring drives the outer magnetic ring to slide left and right on the inner cylinder through the air inlet. At this time, due to the setting of the spring and the connection with the extension block through the dustproof cloth, the dustproof cloth on both sides will be pulled out and rolled up while the moving block is running. This ensures that the outer magnetic ring is running normally while the surface of the inner cylinder is sealed, preventing dust from adhering to its surface and affecting the normal operation of the device. This achieves the purpose of preventing dust and iron filings from adhering to the outer surface of the inner cylinder.

[0018] 2. In this invention, through the buffer structure, when the device is dust-free through the dustproof cloth and the device moves at a relatively fast speed, when the inner magnetic ring runs to both ends inside the inner cylinder, one side of the piston hits the buffer plate. At this time, the spring is compressed by force, causing the buffer rod to drive the buffer plate to move to one side. This can buffer the inertia of the piston and prevent the inner magnetic ring from being damaged by impact.

[0019] 3. In this invention, by adjusting the structure and moving the lever, the rotating disk rotates on the connecting pipe. Since the sliding column and the straight groove are slidably connected, when the rotating disk rotates, it can drive the straight groove to squeeze the sliding column, causing the sliding column to move each triangular sealing plate along the edge of the adjacent triangular sealing plate in the hexagonal groove. This can control the leakage range of the vent hole, thereby controlling the air entering the inner cylinder and achieving the purpose of controlling the cylinder running speed. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the sealing groove structure of the present invention; Figure 3 This is a schematic diagram of the inner cylinder structure of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the inner cylinder of the present invention; Figure 5 This is a schematic diagram of the sealing gasket structure of the present invention; Figure 6 This is a schematic diagram of the buffer structure of the present invention; Figure 7 This is a schematic diagram of the dustproof structure of the present invention; Figure 8 This is a schematic diagram of the adjustment structure of the present invention; Figure 9 This is a schematic diagram of the disassembly of the adjustment structure of the present invention; In the diagram: 1. Mounting base plate; 2. Mounting side block; 3. Outer cylinder; 4. Sealing groove; 5. Mounting groove; 6. Air inlet; 7. Sealing gasket; 8. Inner cylinder; 9. Anti-deviation protrusion; 10. Outer magnetic ring; 11. Extension block; 12. Connecting block; 13. Moving block; 14. Inner magnetic ring; 15. Piston; 16. Buffer structure; 161. Abutment; 162. Spring; 163. Abutment; 164. Buffer rod; 165. Buffer plate; 17. Dustproof structure; 71. Winding seat; 172. Rotating rod; 173. Spring; 174. Dustproof cloth; 175. Guide roller; 18. Adjustment structure; 181. Extension tube; 182. Connecting tube; 183. Air inlet pipe; 1821. Fixed plate; 1822. Hexagonal groove; 1823. Vent hole one; 1824. Sliding column; 1825. Triangular sealing plate; 1826. Rotating plate; 1827. Straight groove; 1828. Toggle block; 1829. Vent hole two. Detailed Implementation

[0021] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings: Please see Figure 1-9This invention relates to a magnetically coupled rodless cylinder, comprising a mounting base plate 1, mounting side blocks 2 fixedly mounted on the top two sides of the mounting base plate 1, mounting grooves 5 formed on the top of the two mounting side blocks 2, and dustproof structures 17 fixedly mounted on the top of the two mounting side blocks 2. The two dustproof structures 17 include two winding seats 171, rotating rods 172 fixedly sleeved inside the two winding seats 171, springs 173 fixedly sleeved on the outer surfaces of the two rotating rods 172, and dustproof cloths 174 wound on the outer surfaces of the two springs 173. Guide rollers 175 are fixedly sleeved inside the two mounting grooves 5, and an outer cylinder 3 is fixedly mounted inside the two mounting side blocks 2. A sealing groove 4 is formed on the top of the outer surface of the outer cylinder 3, and the dustproof cloths 174 on both sides are slidably connected to the sealing grooves 4.

[0022] Please see Figure 1-4 This invention comprises: sealing gaskets 7 fixedly installed on one side of two mounting side blocks 2; an inner cylinder 8 fixedly installed inside the two sealing gaskets 7; the inner cylinder 8 being installed inside the outer cylinder 3; an inner magnetic ring 14 placed inside the inner cylinder 8; a piston 15 fixedly installed inside the inner magnetic ring 14; and an anti-deviation protrusion 9 fixedly installed on the top of the outer surface of the inner cylinder 8; an outer magnetic ring 10 movably sleeved at the middle of the outer surface of the inner cylinder 8; the outer magnetic ring 10 and the inner magnetic ring 14 being magnetically connected; an extension block 11 fixedly installed on the top of the outer magnetic ring 10; connecting blocks 12 fixedly installed on both sides of the outer surface of the extension block 11; two connecting blocks 12 being fixedly connected to the dustproof cloths 174 on both sides; and a movable block 13 fixedly installed on the top of the extension block 11.

[0023] The inner cylinder 8 is sealed by the sealing gasket 7. The anti-deviation protrusion 9 prevents the moving block 13 from tipping over during transportation. The dustproof cloths 174 on both sides are slidably connected in the sealing groove 4, which ensures that the moving block 13 can move while ensuring the outer surface of the inner cylinder 8 is sealed.

[0024] Please see Figure 1-9 This invention comprises two mounting side blocks 2 with four slots inside, and buffer structures 16 are fixedly installed in the four slots. The two buffer structures 16 include four abutment pieces 161, and springs 162 are fixedly installed on the left outer surface of the four abutment pieces 161. Abutment blocks 163 are fixedly installed on the left outer surface of the four springs 162, and buffer rods 164 are fixedly installed on the right outer surface of the four abutment blocks 163. The four buffer rods 164 are tightly fitted with the abutment pieces 161, and a buffer sheet 165 is fixedly installed on the right outer surface of the four buffer rods 164.

[0025] When the inner magnetic ring 14 runs to both ends inside the inner cylinder 8, one side of the piston 15 impacts the buffer plate 165. At this time, the spring 162 is compressed, causing the buffer rod 164 to drive the buffer plate 165 to move to one side. This can buffer the inertia of the piston 15 and prevent the inner magnetic ring 14 from being damaged by the impact.

[0026] Please see Figure 1-9 This invention comprises two mounting side blocks 2 with internal air inlets 6 extending through the interior of the inner cylinder 8. Adjustment structures 18 are fixedly mounted on the outer surfaces of the two air inlets 6. Each adjustment structure 18 includes an extension tube 181, and a connecting tube 182 is fixedly mounted on one side of the outer surface of each extension tube 181. Fixed discs 1821 are fixedly mounted on one side of the outer surface of each connecting tube 182. Hexagonal grooves 1822 are formed inside each fixed disc 1821. A vent hole 1823 is fixedly fitted inside each fixed disc 1821. Six sliding pillars 1824 are slidably mounted inside each hexagonal groove 1822. Six triangular sealing plates 1825 are fixedly mounted on the outer surfaces of each sliding pillar 1824. Rotating discs 1826 are fixedly fitted onto the outer surfaces of each connecting tube 182. Six straight slots 1827 are formed inside each rotating disc 1826, and these slots are slidably connected to the sliding pillars 1824. The interior of the two rotating disks 1826 is provided with ventilation holes 1829, and the top of the outer surface of the two rotating disks 1826 is fixedly installed with a lever 1828. The interior of the two ventilation holes 1829 is fixedly fitted with an air inlet pipe 183.

[0027] By moving the lever 1828, the rotating disk 1826 rotates on the connecting pipe 182. Since the sliding column 1824 and the straight groove 1827 are slidably connected, when the rotating disk 1826 rotates, it can drive the straight groove 1827 to squeeze the sliding column 1824, causing the sliding column 1824 to drive each triangular sealing plate 1825 to move along the edge line of the adjacent triangular sealing plate 1825 in the hexagonal groove 1822. This can control the leakage range of the vent hole 1823, thereby controlling the air entering the inner cylinder 8 and thus controlling the operating speed of the device.

[0028] The working principle of this invention is as follows: Through the magnetic connection between the inner magnetic ring 14 and the outer magnetic ring 10, when the air valve supplies air into the air inlet 6, the inner magnetic ring 14 drives the piston 15 to move inside the inner cylinder 8. Simultaneously, the outer magnetic ring 10 drives the moving block 13 to follow the piston 15. At this time, due to the setting of the spring 173 and its connection to the extension block 11 via the dustproof cloth 174, while the moving block 13 is running, the dustproof cloths 174 on both sides are pulled out and rolled up, ensuring the outer magnetic ring 10... During normal operation, the inner cylinder 8 is sealed to prevent dust from accumulating on its surface and affecting the normal operation of the device. When it is necessary to adjust the operating speed of the device, the rotating disk 1826 is rotated on the connecting pipe 182 by moving the lever 1828. Since the sliding column 1824 and the straight groove 1827 are slidably connected, when the rotating disk 1826 rotates, it can drive the straight groove 1827 to squeeze the sliding column 1824. When the rotating disk 1826 rotates, due to the straight groove 1827... The limiting position of the 1824 sliding column and the limiting position of the 1822 hexagonal groove on the 1825 triangular sealing plate cause each 1824 sliding column to only drive each 1825 triangular sealing plate to travel a fixed distance of one straight groove 1827 in the 1822 hexagonal groove. Since each 1825 triangular sealing plate is the same size and mass, each 1825 triangular sealing plate can move along the edge of the adjacent triangular sealing plate 1825 during travel, thus completing the opening and closing of 1823. This allows control over the leakage range of the vent hole 1823, thereby controlling the air entering the inner cylinder 8 and the operating speed of the device. Finally, when the inner magnetic ring 14 runs to both ends inside the inner cylinder 8, one side of the piston 15 impacts the buffer plate 165. At this time, the spring 162 is compressed, causing the buffer rod 164 to drive the buffer plate 165 to move to one side. This buffers the inertia of the piston 15 and prevents the inner magnetic ring 14 from being damaged by the impact.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A magnetically coupled rodless cylinder, comprising a mounting base plate (1), characterized in that: Mounting side blocks (2) are fixedly installed on the top two sides of the mounting base plate (1). Mounting grooves (5) are opened on the top of the two mounting side blocks (2). Dustproof structures (17) are fixedly installed on the top of the two mounting side blocks (2). The two dustproof structures (17) include two winding seats (171). Rotating rods (172) are fixedly sleeved inside the two winding seats (171). Springs (173) are fixedly sleeved on the outer surface of the two rotating rods (172). Dustproof cloth (174) is wound on the outer surface of the two springs (173). Guide rollers (175) are fixedly sleeved inside the two mounting grooves (5). Outer cylinders (3) are fixedly installed inside the two mounting side blocks (2). Sealing grooves (4) are opened on the top of the outer surface of the outer cylinders (3). The dustproof cloths (174) on both sides are slidably connected to the sealing grooves (4). A sealing gasket (7) is fixedly installed on one side of each of the two mounting side blocks (2), and an inner cylinder (8) is fixedly installed inside the two sealing gaskets (7). The inner cylinder (8) is installed inside the outer cylinder (3). An inner magnetic ring (14) is placed inside the inner cylinder (8), and a piston (15) is fixedly installed inside the inner magnetic ring (14). An outer magnetic ring (10) is movably sleeved on the middle of the outer surface of the inner cylinder (8). The outer magnetic ring (10) and the inner magnetic ring (14) are magnetically connected. An extension block (11) is fixedly installed on the top of the outer magnetic ring (10). Connecting blocks (12) are fixedly installed on both sides of the outer surface of the extension block (11). The two connecting blocks (12) are fixedly connected to the dustproof cloths (174) on both sides. A movable block (13) is fixedly installed on the top of the extension block (11). The two mounting side blocks (2) are provided with air inlets (6), which penetrate the interior of the inner cylinder (8). An adjustment structure (18) is fixedly installed on the outer surface of the two air inlets (6). The two adjustment structures (18) include extension tubes (181), and a connecting tube (182) is fixedly installed on one side of the outer surface of the two extension tubes (181). A fixing plate (1821) is fixedly installed on one side of the outer surface of the two connecting pipes (182). A hexagonal groove (1822) is opened inside the two fixing plates (1821). Six sliding columns (1824) are slidably installed inside the two hexagonal grooves (1822). Six triangular sealing plates (1825) are fixedly installed on the outer surface of the six sliding columns (1824). The outer surfaces of the two connecting pipes (182) are rotatably connected to a rotating disk (1826), and the interior of the two rotating disks (1826) is provided with six straight slots (1827), which are slidably connected to the sliding column (1824). Therefore, during driving, each triangular sealing plate (1825) can move along the edge of the adjacent triangular sealing plate (1825), thus enabling the opening and closing of the vent hole (1823) to be completed, thereby controlling the leakage range of the vent hole (1823).

2. The magnetically coupled rodless cylinder according to claim 1, characterized in that: An anti-deviation protrusion (9) is fixedly installed on the top of the outer surface of the inner cylinder (8).

3. A magnetically coupled rodless cylinder according to claim 1, characterized in that: The two mounting side blocks (2) have four slots inside, and a buffer structure (16) is fixedly installed in the four slots. The two buffer structures (16) include four abutments (161), and springs (162) are fixedly installed on the left outer surface of the four abutments (161).

4. A magnetically coupled rodless cylinder according to claim 3, characterized in that: A stop block (163) is fixedly installed on the left outer surface of the four springs (162), and a buffer rod (164) is fixedly installed on the right outer surface of the four stop blocks (163). The four buffer rods (164) are in close contact with the stop piece (161), and a buffer piece (165) is fixedly installed on the right outer surface of the four buffer rods (164).

5. A magnetically coupled rodless cylinder according to claim 1, characterized in that: The two fixed disks (1821) are internally fixedly fitted with a vent hole (1823).

6. A magnetically coupled rodless cylinder according to claim 5, characterized in that: The two rotating disks (1826) have two ventilation holes (1829) inside. The top of the outer surface of the two rotating disks (1826) is fixedly installed with a lever (1828). The two ventilation holes (1829) are fixedly connected with an air inlet pipe (183).

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