Perfluoroether rubber internal mixing equipment

Abstract

The utility model discloses perfluoroether rubber internal mixing equipment which is characterized in that an internal mixing chamber and a feeding bin are arranged in an equipment body, the feeding bin is arranged right above the internal mixing chamber and is communicated with the internal mixing chamber, a pair of oppositely rotating rotors is arranged in the internal mixing chamber, a transmission mechanism is arranged on one side of a rack, and a motor is arranged on the other side of the rack. The feeding door is driven to open or close the feeding bin, a pressing mechanism is arranged in the feeding bin and comprises a driving unit and a fixed pressing plate connected with the driving unit, the fixed pressing plate is driven by the driving unit to move up and down along the feeding bin, and a moving cavity with a downward opening is formed in the bottom of the fixed pressing plate. A movable pressing plate is arranged in the moving cavity in a sliding mode, and an elastic buffering structure is arranged between the movable pressing plate and the fixed pressing plate. According to the perfluoroether rubber internal mixing equipment provided by the utility model, in the material pushing operation process, the elastic buffer structure can elastically buffer the movable pressing plate, so that the movable pressing plate is prevented from being damaged due to hard contact in the movement process.

Description

Technical Field

[0001] The utility model relates to the technical field of perfluoroether rubber, in particular to perfluoroether rubber mixing equipment. Background Art

[0002] Perfluoroether rubber (PFER) is a terpolymer of perfluoro(methyl vinyl) ether, tetrafluoroethylene, and perfluoroolefin ether, also known as perfluoroether rubber (PFER). PFER is a synthetic elastomer that combines the low-temperature resistance of fluoroether oil with the solvent resistance of PFER. Its raw rubber is a colorless, odorless, transparent solid at room temperature and is primarily used as a lubricant. In addition to its excellent chemical and heat resistance, PFER is also homogeneous, with no surface penetration, cracking, or pinholes. These characteristics improve sealing performance, extend operating cycles, and effectively reduce maintenance costs.

[0003] The production of perfluoroelastomer requires an internal mixer. Its primary component is the mixing chamber, also known as the plasticating chamber. The upper portion houses the feeding device, while the lower portion houses the discharge port. Each chamber has a bolt. When the upper and lower bolts are closed, a sealed plasticating chamber is formed. The plasticating chamber houses a pair of rotors rotating in opposite directions. These rotors are pear-shaped in cross-section and follow a Z-shaped spiral along their length. The rotors rotate at slightly different speeds, and a fixed speed ratio exists between the rotors and the inner wall of the plasticating chamber. For example, the patent application with the authorization announcement number CN215319820U, entitled "A Rubber Mixing Equipment," comprises an internal mixer and a raw material conveying assembly, a feed pipe, and a feed hopper. The external wall of the internal mixer is provided with a raw material conveying assembly connected to the feed port of the internal mixer via a mounting plate. The bottom end of the feed pipe is connected to the raw material conveying assembly, and the top end of the feed pipe is connected to the feed hopper. The feed hopper is provided with a hydraulic rod via a hydraulic rod bracket. The telescopic end of the hydraulic rod is provided with a pressure plate corresponding to the top opening of the feed hopper. The pressure plate is arranged horizontally and its edge slides with the inner wall of the feed hopper. The wall of the feed pipe is provided with an anti-blocking assembly for pushing the raw material into the raw material conveying assembly. In the prior art, when the pressure plate is pressed against the raw material during use, the pressure plate and the raw material directly apply force. When the raw material overflows, it cannot be buffered in time. Under long-term direct pressure, the hydraulic rod is easily damaged, reducing its service life, thereby affecting the internal mixing of the raw materials and reducing the working efficiency of the internal mixing equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a perfluoroether rubber mixing device to solve the above-mentioned shortcomings in the prior art.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A perfluoroether rubber mixing equipment comprises a frame and an equipment body arranged on the frame, a mixing chamber and a feed bin are arranged inside the equipment body, the feed bin is arranged just above the mixing chamber and is communicated with the mixing chamber, a pair of rotors rotating in opposite directions are arranged in the mixing chamber, a transmission mechanism is provided on one side of the frame, the transmission mechanism can drive the two rotors to rotate and grind the raw materials, a feeding door is provided on one side of the feed bin, the feeding door can open or close the feed bin when driven, a pressing mechanism is provided in the feed bin, the pressing mechanism comprises a driving unit and a fixed pressure plate connected to the driving unit, the fixed pressure plate can move up and down along the feed bin when driven by the driving unit, a moving cavity with a downward opening is provided at the bottom of the fixed pressure plate, a movable pressure plate is slidingly provided in the moving cavity, and an elastic buffer structure is provided between the movable pressure plate and the fixed pressure plate.

[0007] The above-mentioned perfluoroether rubber mixing equipment also includes a discharge mechanism. A discharge bin is provided at the bottom of the equipment body. The discharge bin is located at the bottom of the mixing chamber and is connected to the mixing chamber. The discharge mechanism is provided in the discharge bin.

[0008] In the perfluoroether rubber mixing equipment, the movable pressing plate is provided with an upper push bolt, and arc-shaped pressing structures are provided on opposite sides of the movable pressing plate.

[0009] In the above-mentioned perfluoroether rubber mixing equipment, the elastic buffer structure includes a first spring member, and two ends of the first spring member are respectively connected to the movable pressure plate and the top wall of the movement chamber.

[0010] The above-mentioned perfluoroether rubber mixing equipment, the driving unit includes a hydraulic cylinder and a piston rod arranged on the hydraulic cylinder, a mounting rod is fixedly provided at the bottom of the piston rod, the mounting rod is fixed coaxially with the piston rod, and the radial dimension of the mounting rod is smaller than the radial dimension of the piston rod.

[0011] In the above-mentioned perfluoroether rubber mixing equipment, the top of the movable pressure plate is provided with an inverted eight-shaped pressing groove, and the lower end of the piston rod is provided with a pressing structure corresponding to the pressing groove.

[0012] In the above-mentioned perfluoroether rubber mixing equipment, the fixed pressure plate is fixedly installed on the piston rod, an annular groove is provided on the top of the fixed pressure plate, a connecting channel is provided inside the fixed pressure plate, the upper end of the connecting channel is connected to the annular groove, and the lower end of the connecting channel is connected to the motion chamber.

[0013] In the above-mentioned perfluoroether rubber mixing equipment, the pressing surface of the movable pressure plate is provided with an arc-shaped pressing groove, and the movable pressure plate is provided with a movement channel connected to the arc-shaped pressing groove, and the movement channel is coaxially arranged with the connecting channel.

[0014] The above-mentioned perfluoroether rubber mixing equipment also includes a movable pressing component, which includes an arc-shaped pressing block, a moving rod and an annular plate. The arc-shaped pressing block is movably installed in the arc-shaped pressing groove, the moving rod is movably connected to the moving channel and the connecting channel, and the annular plate is movably connected in the annular groove. A second spring member is provided between the annular plate and the bottom wall of the annular groove.

[0015] The above-mentioned perfluoroether rubber mixing equipment also includes an annular pressure body, which is fixedly installed at the bottom of the hydraulic cylinder. When the piston rod moves to the top, the annular pressure body presses the annular plate so that it is stored inside the annular groove.

[0016] In the above technical scheme, the perfluoroether rubber mixing equipment provided by the utility model includes a frame and an equipment body arranged on the frame, a mixing chamber and a feed bin are arranged inside the equipment body, the feed bin is arranged just above the mixing chamber and is connected to the mixing chamber, a pair of rotors rotating in opposite directions are arranged in the mixing chamber, a feeding door is arranged on one side of the feed bin, and a pressing mechanism is arranged in the feed bin, the pressing mechanism includes a driving unit and a fixed pressure plate connected to the driving unit, a movable pressure plate is arranged at the bottom of the fixed pressure plate, a motion cavity for the movable pressure plate to move, and an elastic buffer structure is arranged between the movable pressure plate and the fixed pressure plate, under the drive of the driving unit, the fixed pressure plate and the movable pressure plate can move up and down along the feed bin, and the movable pressure plate can push the raw materials in the feed bin into the mixing chamber, and during the pushing operation, the elastic buffer structure can elastically buffer the movable pressure plate to avoid damage caused by hard contact of the movable pressure plate during movement, and can also prevent damage to the driving unit and the movable pressure plate due to long-term direct pressure when the raw materials are overflowing, thereby improving the service life of the movable pressure plate and the driving unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A front view of a perfluoroether rubber mixing device provided in an embodiment of the present utility model;

[0019] Figure 2A schematic structural diagram of a feed bin and a mixing chamber provided in an embodiment of the present invention;

[0020] Figure 3 This is a structural schematic diagram of the material pressing mechanism provided in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Equipment body; 11. Mixing chamber; 12. Feed bin; 13. Rotor; 14. Transmission mechanism; 15. Feed door; 16. Feed port; 2. Frame; 3. Pressing mechanism; 31. Drive unit; 311. Hydraulic cylinder; 312. Piston rod; 313. Mounting rod; 314. Pressing structure; 315. Annular pressing body; 32. Fixed pressing plate; 321. Moving chamber; 322. Connecting channel; 33. Movable pressing plate; 331. Upper push bolt; 332. Arc-shaped pressing structure; 333. Pressing groove; 334. Moving channel; 335. Arc-shaped pressing groove; 336. Annular groove; 34. Elastic buffer structure; 341. First spring member; 35. Discharging mechanism; 4. Movable pressing member; 41. Arc-shaped pressing block; 42. Moving rod; 43. Annular plate; 44. Second spring member. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-3 As shown, the utility model provides a perfluoroether rubber mixing equipment, including a frame 2 and an equipment body 1 arranged on the frame 2, a mixing chamber 11 and a feed bin 12 are arranged inside the equipment body 1, the feed bin 12 is arranged just above the mixing chamber 11 and is connected to the mixing chamber 11, a pair of rotors 13 rotating in opposite directions are arranged in the mixing chamber 11, a transmission mechanism 14 is provided on one side of the frame 2, the transmission mechanism 14 drives the two rotors 13 to rotate at high speed to crush the raw materials, and a feeding door 15 is provided on one side of the feed bin 12. The feed gate 15 is driven to open or close the feed bin 12. A pressing mechanism 3 is provided in the feed bin 12. The pressing mechanism 3 includes a driving unit 31 and a fixed pressure plate 32 connected to the driving unit 31. The fixed pressure plate 32 is driven by the driving unit 31 and can move up and down along the feed bin 12. A movable pressure plate 33 is provided at the bottom of the fixed pressure plate 32. A motion cavity 321 for the movable pressure plate 33 to move is provided on the fixed pressure plate 32. An elastic buffer structure 34 is provided between the movable pressure plate 33 and the fixed pressure plate 32.

[0025] Specifically, the equipment body 1 is installed on the frame 2, and a mixing chamber 11 is provided inside the equipment body 1. A pair of rotors 13 rotating in opposite directions are provided in the mixing chamber 11. The rotors 13 can be meshing GKE rotors or tangential GKN rotors. A transmission mechanism 14 is provided on one side of the frame 2. The left and right ends of the two rotors 13 pass through the left and right chamber walls of the mixing chamber 11. The transmission mechanism 14 drives the two rotors 13 to rotate. The rotation of the rotors 13 can crush the raw materials in the mixing chamber 11. A feed bin 12 is provided above the mixing chamber 11. The feed bin 12 is connected to the mixing chamber 11. A feed port 16 is provided on one side of the feed bin 12, and a feed gate 15 is provided on the feed port 16. A driving component capable of driving the feed gate 15 is provided on the equipment body 1, and the feed gate 15 can be driven up and down by the driving component to open and close the feed port 16.

[0026] In this embodiment, a pressing mechanism 3 is provided in the feed bin 12, and the pressing mechanism 3 includes a driving unit 31 and a fixed pressing plate 32. The driving unit 31 can be a cylinder and a piston rod 312 connected to the cylinder. The fixed pressing plate 32 is movably connected in the feed bin 12. The fixed pressing plate 32 is driven by the driving unit 31 and can move up and down along the feed bin 12, thereby pushing the raw materials to be processed from the feed bin 12 to the mixing chamber 11. A moving cavity 321 with a downward opening is provided at the bottom of the fixed pressing plate 32. The movable pressing plate 33 is movably installed in the moving cavity 321, and an elastic buffer structure 34 is provided in the moving cavity 321. The upper end of the elastic buffer structure 34 is fixedly installed on the top wall of the moving cavity 321, and the lower end of the elastic buffer structure 34 is connected to the top of the movable pressing plate 33. In the initial state, under the action of the elastic buffer structure 34, a part of the movable pressing plate 33 moves out of the moving cavity 32 When the material is pushed out of the feed bin 12, the movable pressure plate 33 and the fixed pressure plate 32 are extended. In this way, during the process of the movable pressure plate 33 and the fixed pressure plate 32 pushing the raw material, the fixed pressure plate 32 and the movable pressure plate 33 move downward along the feed bin 12 under the drive of the driving unit 31, and the movable pressure plate 33 pushes the raw material in the feed bin 12. If the movable pressure plate 33 encounters resistance, the movable pressure plate 33 moves toward the inside of the moving cavity 321 to press the elastic buffer structure 34, so that the elastic buffer structure 34 has elasticity. When the movable pressure plate 33 is pressed until it is completely stored in the moving cavity 321, the movable pressure plate 33 and the fixed pressure plate 32 push the raw material synchronously. In this process, the raw material is pushed not only by the movable pressure plate 33 but also by the movable pressure plate 33 and the fixed pressure plate 32 at the same time, thereby realizing elastic buffering of the movable pressure plate 33, avoiding direct hard contact between the movable pressure plate 33 and the raw material, and reducing damage to the movable pressure plate 33 and the feed bin 12.

[0027] The utility model provides a perfluoroether rubber mixing device, comprising a frame 2 and a device body 1 arranged on the frame 2, a mixing chamber 11 and a feed bin 12 are arranged inside the device body 1, the feed bin 12 is arranged just above the mixing chamber 11 and is communicated with the mixing chamber 11, a pair of rotors 13 rotating in opposite directions are arranged in the mixing chamber 11, a feeding door 15 is arranged on one side of the feed bin 12, a pressing mechanism 3 is arranged in the feed bin 12, the pressing mechanism 3 comprises a driving unit 31 and a fixed pressing plate 32 connected to the driving unit 31, a movable pressing plate 33 is arranged at the bottom of the fixed pressing plate 32, and a movable pressing plate 33 is provided on the fixed pressing plate 32 for the movable pressing plate 33 to move. An elastic buffer structure 34 is provided between the moving cavity 321, the movable pressure plate 33 and the fixed pressure plate 32. Driven by the driving unit 31, the fixed pressure plate 32 and the movable pressure plate 33 can move up and down along the feed bin 12. The movable pressure plate 33 can push the raw materials in the feed bin 12 into the mixing chamber 11. During the pushing operation, the elastic buffer structure 34 can elastically buffer the movable pressure plate 33 to avoid damage caused by hard contact of the movable pressure plate 33 during movement. It can also prevent damage to the driving unit 31 and the movable pressure plate 33 due to long-term direct pressure when the raw materials are overflowing, thereby improving the service life of the movable pressure plate 33 and the driving unit 31.

[0028] In this embodiment, preferably, a discharging mechanism 35 is further included. A discharging bin is provided at the bottom of the equipment body 1. The discharging bin is located at the bottom of the mixing chamber 11 and is communicated with the mixing chamber 11. A discharging port is provided on the discharging bin. The discharging mechanism 35 is provided in the discharging bin for discharging the mixed material from the discharging port. In this way, when the raw material is mixed, the processed material is discharged from the discharging port through the discharging mechanism 35.

[0029] In this embodiment, preferably, it also includes an upper push bolt 331, which is fixedly connected to the bottom of the movable pressure plate 33, and an arc-shaped pressing structure 332 is provided on the opposite sides of the movable pressure plate 33, so that the upper push bolt 331 forms a convex structure at the bottom of the movable pressure plate 33. In this way, when the movable pressure plate 33 pushes the raw material to the mixing chamber 11, the upper push bolt 331 divides the rubber material into two parts, which are respectively delivered to the two rotors 13.

[0030] In this embodiment, preferably, the elastic buffer structure 34 includes a first spring member 341, the two ends of the first spring member 341 are respectively connected to the movable pressure plate 33 and the top wall of the motion chamber 321, the driving unit 31 includes a hydraulic cylinder 311 and a piston rod 312 arranged on the hydraulic cylinder 311, the bottom of the piston rod 312 is fixedly provided with a mounting rod 313, the mounting rod 313 and the piston rod 312 are coaxially fixed, the radial dimension of the mounting rod 313 is smaller than the radial dimension of the piston rod 312, the first spring member 341 is sleeved on the mounting rod 313, the top of the first spring member 341 is fixedly connected to the top wall of the motion chamber 321, the bottom of the first spring member 341 is fixed on the movable pressure plate 33, the movable pressure plate 33 When the cam 33 is in the closed position, the cam 33 is in the closed position, and the cam 33 is in the open position, so the cam 33 is in the closed position and the cam 33 is in the open position.

[0031] In this embodiment, preferably, an inverted eight-shaped pressing groove 333 is provided on the top of the movable pressure plate 33, and a pressing structure 314 corresponding to the pressing groove 333 is provided on the lower end of the piston rod 312. In this way, when the movable pressure plate 33 moves and is completely stored in the movement cavity 321, the pressing groove 333 on the top of the movable pressure plate 33 is in contact with the pressing structure 314, so that the movable pressure plate 33 and the fixed pressure plate 32 can push the raw material at the same time.

[0032] In this embodiment, preferably, the fixed pressure plate 32 is fixedly mounted on the piston rod 312, and an annular groove 336 is provided on the top of the fixed pressure plate 32, and a connecting channel 322 is provided in the fixed pressure plate 32, the upper end of the connecting channel 322 is connected to the annular groove 336, and the lower end of the connecting channel 322 is connected to the moving chamber 321, and there are at least two connecting channels 322, that is, each arc-shaped pressing structure 332 is provided with a connecting channel 322, and the pressing surface of the movable pressure plate 33 is provided with an arc-shaped pressing groove 335, which is an arc-shaped opening groove opening downward, and the area of ​​the arc-shaped pressing groove 335 is larger than the radial cross-sectional area of ​​the connecting channel 322, and a moving channel 334 is provided on the movable pressure plate 33, and the moving channel 334 is coaxially arranged with the connecting channel 322, and the lower end of the moving channel 334 is connected to the arc-shaped pressing groove 335.

[0033] In this embodiment, preferably, it also includes a movable pressing member 4, which includes an arc-shaped pressing block 41, a moving rod 42 and an annular plate 43. The depth of the arc-shaped pressing groove 335 is equal to the thickness of the arc-shaped pressing block 41. The arc-shaped pressing block 41 is movably installed in the arc-shaped pressing groove 335. The moving rod 42 is restricted in the moving channel 334 and the connecting channel 322. The annular plate 43 is movably connected in the annular groove 336. A second spring is provided between the annular plate 43 and the bottom wall of the annular groove 336. Part 44, the upper end of the second spring part 44 is fixedly connected to the bottom of the annular plate 43, and the lower end of the second spring part 44 is fixed on the bottom wall of the annular groove 336. When the second spring part 44 is in the initial state, the upper surface of the annular plate 43 and the top surface of the fixed pressure plate 32 are on the same plane, and the arc-shaped pressing block 41 is completely collected in the arc-shaped pressing groove 335, and the arc-shaped pressing block 41 is in contact with the inner wall of the arc-shaped pressing groove 335. At this time, the arc-shaped pressing block 41 can push the raw material together with the movable pressure plate 33.

[0034] In this embodiment, preferably, the annular pressing body 315 is fixedly installed at the bottom of the hydraulic cylinder 311. When the piston rod 312 moves to the top position, the annular pressing body 315 presses the annular plate 43 to make it move toward the inside of the annular groove 336. The annular pressing body 315 blocks the movable pressing plate 33 from moving upward along the feed bin 12. In this way, when the fixed pressing plate 32 and the movable pressing plate 33 move upward to the preset position and continue to move, the annular pressing body 315 presses the annular plate 43, so that the annular The shaped plate 43 moves toward the inside of the annular groove 336 to press against the second spring member 44. During this process, the moving rod 42 moves downward along the moving channel 334 and the connecting channel 322, and the arc-shaped pressing block 41 moves downward along the arc-shaped pressing groove 335 and thus extends out of the arc-shaped pressing groove 335. The advantage of such a setting is that when the arc-shaped pressing block 41 is driven to extend out of the arc-shaped pressing groove 335, the raw materials adhered to the movable pressure plate 33 can be pushed down, thereby avoiding the raw materials and the like from being adhered and accumulated on the fixed pressure plate 32 during the pushing process, thereby affecting the pushing operation.

[0035] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A perfluoroether rubber mixing equipment, comprising a frame and an equipment body arranged on the frame, characterized in that: A mixing chamber and a feed bin are provided inside the equipment body, the feed bin is provided just above the mixing chamber and is communicated with the mixing chamber, a pair of rotors rotating in opposite directions are provided in the mixing chamber, a transmission mechanism is provided on one side of the frame, the transmission mechanism can drive the two rotors to rotate and crush the raw materials, a feeding door is provided on one side of the feed bin, the feeding door can open or close the feed bin when driven, a pressing mechanism is provided in the feed bin, the pressing mechanism includes a driving unit and a fixed pressure plate connected to the driving unit, the fixed pressure plate can move up and down along the feed bin when driven by the driving unit, a moving cavity with a downward opening is provided at the bottom of the fixed pressure plate, a movable pressure plate is slidingly provided in the moving cavity, and an elastic buffer structure is provided between the movable pressure plate and the fixed pressure plate.

2. The perfluoroether rubber mixing equipment according to claim 1, characterized in that: It also includes a discharging mechanism. A discharging bin is provided at the bottom of the equipment body. The discharging bin is located at the bottom of the mixing chamber and is communicated with the mixing chamber. The discharging mechanism is provided in the discharging bin.

3. The perfluoroether rubber mixing equipment according to claim 1, characterized in that: An upper push bolt is provided on the movable pressing plate, and arc-shaped pressing structures are provided on opposite sides of the movable pressing plate.

4. The perfluoroether rubber mixing equipment according to claim 1, characterized in that: The elastic buffer structure includes a first spring member, and two ends of the first spring member are respectively connected to the movable pressure plate and the top wall of the movement cavity.

5. The perfluoroether rubber mixing equipment according to claim 1, characterized in that: The driving unit includes a hydraulic cylinder and a piston rod arranged on the hydraulic cylinder. A mounting rod is fixedly arranged at the bottom of the piston rod. The mounting rod is fixed coaxially with the piston rod, and the radial dimension of the mounting rod is smaller than the radial dimension of the piston rod.

6. The perfluoroether rubber mixing equipment according to claim 5, characterized in that: The top of the movable pressure plate is provided with an inverted eight-shaped pressing groove, and the lower end of the piston rod is provided with a pressing structure corresponding to the pressing groove.

7. The perfluoroether rubber mixing equipment according to claim 6, characterized in that: The fixed pressure plate is fixedly mounted on the piston rod, an annular groove is provided on the top of the fixed pressure plate, a connecting channel is provided inside the fixed pressure plate, the upper end of the connecting channel is connected to the annular groove, and the lower end of the connecting channel is communicated with the motion chamber.

8. The perfluoroether rubber mixing equipment according to claim 7, characterized in that: The pressing surface of the movable pressing plate is provided with an arc-shaped pressing groove, and the movable pressing plate is provided with a movement channel connected with the arc-shaped pressing groove, and the movement channel is coaxially arranged with the connecting channel.

9. The perfluoroether rubber mixing equipment according to claim 8, characterized in that: It also includes a movable pressing component, which includes an arc-shaped pressing block, a moving rod and an annular plate. The arc-shaped pressing block is movably installed in the arc-shaped pressing groove, the moving rod is movably connected to the moving channel and the connecting channel, and the annular plate is movably connected in the annular groove. A second spring member is provided between the annular plate and the bottom wall of the annular groove.

10. The perfluoroether rubber mixing equipment according to claim 9, characterized in that: It also includes an annular pressing body, which is fixedly installed at the bottom of the hydraulic cylinder. When the piston rod moves to the top, the annular pressing body presses the annular plate so that it is stored inside the annular groove.

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