Internal mixer for fluororubber sealing ring production

Abstract

The invention discloses a fluororubber sealing ring production internal mixer which comprises a workbench, a controller is fixedly mounted at the top of the workbench, an internal mixing assembly is fixedly mounted at the top of the workbench, a protective cover is fixedly mounted at the top of the internal mixing assembly through screws, hydraulic systems are fixedly mounted on the two sides of the protective cover, and the hydraulic systems are fixedly mounted on the two sides of the protective cover. The hydraulic system structurally comprises a pressure block, a through groove is formed in the top of the pressure block, a C-shaped ring body is fixedly installed on the periphery of the through groove in the top of the pressure block, three evenly-arranged feeding guide pipes are fixedly installed on the outer surface of the C-shaped ring body, and a notch is formed in one side of the through groove of the pressure block. And an electric push rod is mounted on the bottom wall of the notch. The probability that the through groove is blocked can be effectively reduced, in addition, it is guaranteed that materials are scattered and put in the internal mixing chamber, the materials are prevented from being gathered on the blocking plate, and in addition, it can be effectively guaranteed that the materials in the internal mixing chamber can be continuously heated or cooled.

Description

Technical Field

[0001] The invention relates to the technical field of internal mixers, in particular to an internal mixer for producing fluororubber sealing rings. Background Art

[0002] Fluororubber sealing rings have extremely high-quality sealing functions, which can achieve complete sealing and prevent a drop of water from entering the sealed space. In addition, they also have excellent tensile resistance, corona resistance, arc resistance, high temperature and low temperature resistance, and good aging resistance. In the production and preparation process, an internal mixer is required. The raw materials, rubber and fillers required for the production of fluororubber sealing rings are placed into the mixing chamber of the internal mixer, and then the equipment is started. The gears of the internal mixer are used to rotate, and the materials are continuously sheared, squeezed and torn inside the tooth grooves, so that the particle size is gradually reduced and evenly dispersed, thereby achieving the purpose of rubber mixing.

[0003] In the existing internal mixers, most of them directly connect the raw materials, rubber and fillers to the quantitative feeding mechanism through the feed nozzle, and then the materials put by the feeding mechanism fall directly down along the feed nozzle. In this process, if the diameter of the feed nozzle is small, it may be blocked. In addition, the materials falling down along the feed nozzle will mostly gather directly below it, which will lead to difficulty in fully mixing the various materials during subsequent mixing, thereby affecting the quality of the subsequent fluororubber sealing ring production product, or causing the mixing time line to be extended, affecting the overall production efficiency. Summary of the invention

[0004] The object of the present invention is to provide an internal mixer for producing fluororubber sealing rings to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an internal mixer for producing fluororubber sealing rings, comprising a workbench, a controller is fixedly installed on the top of the workbench, a mixing assembly is fixedly installed on the top of the workbench, a protective cover is fixedly installed on the top of the mixing assembly by screws, a hydraulic system is fixedly installed on both sides of the protective cover, the structure of the hydraulic system includes a pressure block, a through groove is opened on the top of the pressure block, a C-shaped ring body is fixedly installed on the periphery of the through groove on the top of the pressure block, three evenly arranged feed conduits are fixedly installed on the outer surface of the C-shaped ring body, and one side of the through groove of the pressure block is opened. A slot is provided, and an electric push rod is installed on the bottom wall of the slot. A cantilever plate extending into the inside of the C-shaped ring body is fixedly installed on the telescopic end of the electric push rod. A servo motor is installed on the top of the cantilever plate coaxial with the through slot, and the servo motor, hydraulic system, mixing assembly and electric push rod are all electrically connected to the controller. A spiral feeding shaft matching the diameter of the through slot is fixedly connected to the output end of the servo motor, and a sealing assembly matching the diameter of the through slot is fixedly connected to the bottom of the spiral feeding shaft, and the bottom curvature of the sealing assembly is consistent with the bottom curvature of the pressure block. A dust cover is threadedly connected to the inner wall of the C-shaped ring body.

[0006] Preferably, the structure of the sealing assembly includes a sealing plate, a T-shaped plate, an interlocking groove and a lever, the T-shaped plate is fixedly mounted on the bottom of the spiral feeding shaft, the sealing plate is rotatably sleeved on the outer surface of the T-shaped plate through the interlocking groove, the lever is fixedly mounted on the outer surface of the T-shaped plate, and the bottom of the lever is in contact with the top of the sealing plate.

[0007] Preferably, the structure of the mixing assembly includes a mixing chamber, an inner cavity layer is arranged between the inner wall and the outer wall of the mixing chamber, an extraction pump is installed on the top of the workbench, the input end of the extraction pump is fixedly connected to a delivery conduit, and the tail end of the delivery conduit extends into the inner cavity layer, the output end of the extraction pump is fixedly connected to an integrated pipe, the outer surface of the integrated pipe is fixedly connected to two first hoses arranged front and back, and the outer surfaces of the two first hoses are both installed with solenoid valves.

[0008] Preferably, the tail end of one of the first hoses is fixedly connected to a heater, and the tail end of the other first hose is fixedly connected to a cooler, the outer surfaces of the heater and the cooler are fixedly connected to second hoses, and the tail ends of the two second hoses extend into the upper position of the inner cavity layer.

[0009] Preferably, the bottom of the workbench is fixedly connected with buffer components arranged in a 2×2 array by screws, the bottoms of four buffer components are fixedly installed with cabinet seats by screws, the bottom of the cabinet seat is fixedly installed with foot strips, the structure of the buffer component includes a damping sleeve, the top and bottom of the damping sleeve are provided with threaded grooves, the top and bottom of the damping sleeve are threadedly connected with connecting plates through the threaded grooves, a spring is placed on the top of the lower connecting plate, and the spring is sleeved on the outer surface of the damping sleeve.

[0010] Preferably, the structure of the mixing assembly also includes two gear rotors arranged front to back and fitted with each other, the two gear rotors are rotatably connected to the inside of the mixing chamber, a protective shell is fixedly installed on the outer wall of one side of the mixing chamber, the outer surfaces of the two gear rotors are fixedly sleeved with spur gears, and the two spur gears are both located inside the protective shell, the two spur gears are meshed through tooth grooves, a support frame is fixedly installed on the top of the workbench by screws, a drive motor is fixedly installed on the top of the support frame by screws, the output end of the drive motor is sleeved with a coupling through a rotating shaft, and the inner wall of one end of the coupling is fixedly connected to one end of one of the gear rotors.

[0011] Preferably, arc-shaped folding sheets are fixedly installed on the top and bottom of the cantilever plate, and the bottom of one of the arc-shaped folding sheets is fixedly connected to the top of the workbench, and both sides of the top of the other arc-shaped folding sheet are fixedly connected to both sides of the notch of the C-shaped ring body.

[0012] Preferably, the structure of the hydraulic system also includes an N-shaped frame and a hydraulic cylinder, the N-shaped frame is fixedly installed on both sides of the protective cover, the hydraulic cylinder is fixedly installed in the middle of the top of the N-shaped frame, and the telescopic end of the hydraulic cylinder is fixedly connected to the middle of the top of the pressure block, and the front of the protective cover is provided with a transparent glass.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, when the electric push rod is retracted downward, the cantilever plate drives the servo motor, the spiral feeding shaft and the blocking component to move downward along the inner wall of the through slot, so that a certain distance is generated between the blocking component and the bottom of the through slot, and then the external feeding mechanism is operated to introduce the set amount of raw materials, rubber materials and fillers into the spiral feeding shaft through three feeding ducts respectively, and the servo motor is operated to drive the spiral feeding shaft to rotate downward accordingly, so that the material falls onto the blocking component and finally falls in a dispersed manner inside the space of the mixing chamber, thereby achieving the purpose of conveying the material downward, and in the process of putting the material, the probability of the through slot being blocked can be effectively reduced, and the material can be put in a dispersed manner in the mixing chamber.

[0015] 2. In the present invention, when materials are dropped, the blocking plate is adjusted to be between the two gear rotors through the electric push rod and the hydraulic system. At this time, the blocking plate is limited by the gear rotor, which can effectively prevent it from rotating with the spiral feed shaft. In addition, since the blocking plate and the T-plate are in a rotationally connected state, the rotation of the spiral feed shaft, the T-plate and the lever is not affected. While the lever rotates, the material dropped on the blocking plate can be effectively rotated outward and pushed out.

[0016] 3. In the present invention, the water body can form a circulation flow along the inner cavity layer, the conveying conduit, the inside of the extraction pump, the integrated pipe, one of the first hoses, the inner cavity of the heater or cooler and one of the second hoses. In addition, the heating or cooling effect of the water body by the operation of the heater or cooler can effectively ensure the continuous heating or cooling effect of the material inside the mixing chamber, and the heater and cooler are connected in parallel in this cycle, which can save power resources to a certain extent.

[0017] 4. In the present invention, when the vibration generated by the operation of the driving motor is transmitted downward to the location of the spring, part of the energy can be absorbed by the elasticity and restoring effect of the spring itself, and the impact force can be consumed in cooperation with the damping sleeve, thereby playing a role in shock absorption and buffering. In addition, the spring structure with damaged elasticity can be replaced more conveniently in the buffer assembly in the internal mixer without replacing the entire structure, thereby saving part of the cost during subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the installation structure of the cantilever plate and the arc-shaped folding sheet of the present invention;

[0020] Figure 3 It is a schematic diagram of the installation structure of the electric push rod and the cantilever plate of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the plugging assembly of the present invention;

[0022] Figure 5 It is a schematic diagram of the installation structure of the integrated pipe and the first hose of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the buffer assembly of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the internal mixing assembly of the present invention;

[0025] Figure 8 It is a schematic diagram of the installation structure of the gear rotor and the coupling of the present invention.

[0026] In the figure: 1. workbench; 2. controller; 3. mixing assembly; 4. protective cover; 5. hydraulic system; 6. pressure block; 7. C-type ring; 8. feed duct; 9. electric push rod; 10. overhang plate; 11. servo motor; 12. screw feed shaft; 13. plugging assembly; 14. dust cover; 15. plugging plate; 16. T-type plate; 17. fitting groove; 18. lever; 19. mixing chamber; 20. extraction pump; 21. delivery duct; 22. integrated pipe; 23. The first hose; 24, solenoid valve; 25, heater; 26, cooler; 27, second hose; 28, buffer assembly; 29, cabinet seat; 30, foot strip; 31, damping sleeve; 32, threaded groove; 33, connecting plate; 34, spring; 35, gear rotor; 36, protective shell; 37, spur gear; 38, support frame; 39, drive motor; 40, coupling; 41, arc folding sheet; 42, N-type frame; 43, hydraulic cylinder; 44, perspective glass. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 8 , an embodiment provided by the present invention:

[0029] A mixer for producing fluororubber sealing rings, comprising a workbench 1, a controller 2 fixedly installed on the top of the workbench 1, a mixer component 3 fixedly installed on the top of the workbench 1, a protective cover 4 fixedly installed on the top of the mixer component 3 by screws, a hydraulic system 5 fixedly installed on both sides of the protective cover 4, the structure of the hydraulic system 5 comprising a pressure block 6, a through groove is provided on the top of the pressure block 6, a C-shaped ring body 7 is fixedly installed on the periphery of the through groove on the top of the pressure block 6, three evenly arranged feed conduits 8 are fixedly installed on the outer surface of the C-shaped ring body 7, a notch is provided on one side of the through groove of the pressure block 6, an electric push rod 9 is installed on the bottom wall of the notch, a cantilever plate 10 fixedly installed on the telescopic end of the electric push rod 9 extends into the interior of the C-shaped ring body 7, and the cantilever plate 10 and the through groove are connected. A servo motor 11 is installed on the top of the coaxial groove, and the servo motor 11, the hydraulic system 5, the mixing component 3 and the electric push rod 9 are all electrically connected to the controller 2. The spiral feeding shaft 12 fixedly connected to the output end of the servo motor 11 matches the diameter of the through groove, and the plugging component 13 fixedly connected to the bottom of the spiral feeding shaft 12 matches the diameter of the through groove, and the bottom curvature of the plugging component 13 is consistent with the bottom curvature of the pressure block 6. The inner wall of the C-shaped ring body 7 is threadedly connected to the dust cover 14, and the top and bottom of the cantilever plate 10 are fixedly installed with the bottom of the arc-shaped folding piece 41 fixedly connected to the top of the workbench 1, and the two sides of the top of the other arc-shaped folding piece 41 are fixedly connected to the two sides of the notch of the C-shaped ring body 7.

[0030] The staff connects the quantitative feeding mechanism of raw materials, rubber and filler to the three feeding conduits 8 respectively, and drives the pressure block 6 to move upward by running the hydraulic system 5 upward, so that a certain distance is generated between the bottom of the pressure block 6 and the mixing component 3, providing a certain operable space for the subsequent downward adjustment of the plugging component 13. On this basis, the electric push rod 9 is used to perform a downward contraction operation, and the servo motor 11, the spiral feeding shaft 12 and the plugging component 13 are driven by the cantilever plate 10 to move downward along the inner wall of the through groove, so that the plugging component 13 is moved downward from the bottom of the through groove to the bottom of the through groove. The initial closed state of the inner wall of the part is adjusted to a state with a certain distance from the bottom of the pressure block 6, and then the set amount of raw materials, rubber materials and fillers are respectively introduced into the spiral feeding shaft 12 through the three feeding conduits 8 by running the external feeding mechanism, and the servo motor 11 is operated to drive the spiral feeding shaft 12 to rotate downward accordingly, so as to achieve the purpose of conveying materials downward. Compared with the material delivery of the general internal mixer, this method is not easy to be blocked. In addition, when an unexpected situation occurs, the electric push rod 9 and the blocking component 13 can be used in time to block the through groove;

[0031] The dust cover 14 plays a protective role and can effectively prevent some materials from splashing out along the top of the C-shaped ring body 7 when the materials are put in. In addition, as the electric push rod 9 is extended and retracted up and down, the two arc-shaped folding pieces 41 can be stretched or folded accordingly through the cantilever plate 10, and the two arc-shaped folding pieces 41 can cover the notch of the C-shaped ring body 7, thereby improving the overall shape of the C-shaped ring body 7 and avoiding obstruction to the upward and downward extension operation of the electric push rod 9.

[0032] The structure of the plugging assembly 13 includes a plugging plate 15, a T-shaped disc 16, an interlocking groove 17 and a lever 18. The T-shaped disc 16 is fixedly mounted on the bottom of the spiral feeding shaft 12. The plugging plate 15 is rotatably sleeved on the outer surface of the T-shaped disc 16 through the interlocking groove 17. The lever 18 is fixedly mounted on the outer surface of the T-shaped disc 16, and the bottom of the lever 18 is in contact with the top of the plugging plate 15. The structure of the mixing assembly 3 also includes two gear rotors 35 arranged front and back and fitting with each other. The two gear rotors 35 are rotatably connected to the inside of the mixing chamber 19. The mixing chamber 19 is provided with a plurality of gear rotors 35, each of which is provided with a plurality of gear rotors 35. A protective shell 36 is fixedly installed on the outer wall of one side of the chamber 19, and the outer surfaces of the two gear rotors 35 are fixedly sleeved with spur gears 37, and the two spur gears 37 are both located inside the protective shell 36, and the two spur gears 37 are meshed through tooth grooves. A support frame 38 is fixedly installed on the top of the workbench 1 by screws, and a drive motor 39 is fixedly installed on the top of the support frame 38 by screws. The output end of the drive motor 39 is sleeved with a coupling 40 through a rotating shaft, and the inner wall of one end of the coupling 40 is fixedly connected to one end of one of the gear rotors 35.

[0033] When the material is put into the internal mixer along the through groove, the material will be transported downward along with the rotation of the spiral feed shaft 12, and part of the material will gather on the blocking plate 15. When the material is put, the blocking plate 15 is between the two gear rotors 35. At this time, the blocking plate 15 is limited by the gear rotors 35, which can effectively prevent it from rotating with the spiral feed shaft 12. In addition, since the blocking plate 15 and the T-type plate 16 are in a rotationally connected state, the rotation of the spiral feed shaft 12, the T-type plate 16 and the lever 18 is not affected. When the lever 18 rotates, the material dropped on the blocking plate 15 can be effectively rotated outward. After the materials required for making the fluororubber sealing ring are put in, the sealing component 13 returns to the state of being embedded in the through groove, and then the driving motor 39 runs according to the set program, and drives one of the gear rotors 35 and one of the spur gears 37 to rotate in the set direction through the coupling 40. In addition, this spur gear 37 transmits the rotational force to the location of another spur gear 37 that is meshed with it, and then drives the other gear rotor 35 to follow the rotation, so as to continuously shear, squeeze and tear the material inside the mixing chamber 19, so that its particle size components are reduced and evenly dispersed, thereby achieving the purpose of rubber mixing.

[0034] The structure of the mixing component 3 includes a mixing chamber 19, an inner cavity layer is arranged between the inner wall and the outer wall of the mixing chamber 19, an extraction pump 20 is installed on the top of the workbench 1, and the tail end of the delivery conduit 21 fixedly connected to the input end of the extraction pump 20 extends into the inner cavity layer, and the output end of the extraction pump 20 is fixedly connected to the integrated pipe 22, and the outer surface of the integrated pipe 22 is fixedly connected to two first hoses 23 arranged front and back, and the outer surfaces of the two first hoses 23 are both installed with solenoid valves 24, the tail end of one of the first hoses 23 is fixedly connected to the heater 25, and the tail end of the other first hose 23 is fixedly connected to the cooler 26, and the tail ends of the second hose 27 fixedly connected to the outer surfaces of the heater 25 and the cooler 26 extend into the upper position of the inner cavity layer.

[0035] When the materials are mixed, according to actual needs, the heater 25 or the cooler 26 is started. When one of the two is started, the solenoid valve 24 corresponding to the first hose 23 corresponding to this device is in an open state, while the solenoid valve 24 corresponding to the first hose 23 corresponding to the other device is in a closed state, and the extraction pump 20 is operated in conjunction to generate suction at its input end, so that the water inside the inner cavity layer of the mixing chamber 19 is pumped to the inside of the integrated pipe 22 along the conveying conduit 21, and then enters the inside of the heater 25 or the cooler 26 along the first hose 23 opened by the solenoid valve 24 for heating or cooling. As the extraction pump 20 continues to operate, the water heated or cooled by the heater 25 or the cooler 26 can form a circulation flow along the inner cavity layer, the conveying conduit 21, the inside of the extraction pump 20, the integrated pipe 22, one of the first hoses 23, the inner cavity of the heater 25 or the cooler 26, and one of the second hoses 27, thereby effectively ensuring the continuous effect of heating or cooling the material inside the mixing chamber 19.

[0036] The four buffer components 28 fixedly connected by screws at the bottom of the workbench 1 are arranged in a 2×2 array, the bottoms of the four buffer components 28 are fixedly installed with a cabinet seat 29 by screws, and the bottom of the cabinet seat 29 is fixedly installed with a foot strip 30. The structure of the buffer component 28 includes a damping sleeve 31, and the top and bottom of the damping sleeve 31 are both provided with threaded grooves 32. The top and bottom of the damping sleeve 31 are threadedly connected to a connecting plate 33 through the threaded grooves 32. A spring 34 is placed on the top of the lower connecting plate 33, and the spring 34 is sleeved on the outer surface of the damping sleeve 31.

[0037] When the internal mixer is in operation, the vibration generated by the operation of the drive motor 39 will be transmitted downward to the location of the four springs 34 through the support frame 38 and the workbench 1, indicating that the spring 34 is subjected to impact force. At this time, the spring 34 will absorb part of the energy, and then gradually rebound to its original shape under the action of its own elasticity and reset property, releasing the absorbed energy, thereby alleviating the impact force transmitted downward from the top, and cooperating with the damping sleeve 31 to consume the impact force, thereby playing a role in shock absorption and buffering. In addition, when the elasticity of the spring 34 is damaged, the two connecting plates 33 are removed from the cabinet seat 29 and the workbench 1 respectively, and a rotational force is applied to the upper connecting plate 33 in a set direction to cause it to gradually separate from the damping sleeve 31, and then the spring 34 is pulled out from bottom to top along the outer surface of the damping sleeve 31 to complete the removal of the spring 34.

[0038] The structure of the hydraulic system 5 also includes an N-shaped frame 42 and a hydraulic cylinder 43. The N-shaped frame 42 is fixedly installed on both sides of the protective cover 4, and the hydraulic cylinder 43 is fixedly installed in the middle of the top of the N-shaped frame 42. The telescopic end of the hydraulic cylinder 43 is fixedly connected to the middle of the top of the pressure block 6. A transparent glass 44 is set on the front of the protective cover 4.

[0039] The hydraulic cylinder 43 is operated to move upward or downward, thereby driving the pressure block 6 to adjust its position and change the distance between the pressure block 6 and the two gear rotors 35 below. The transparent glass 44 is used to facilitate the staff to observe the internal conditions of the mixing chamber 19.

[0040] Working principle: three feeding ducts 8 are respectively connected to the quantitative feeding mechanism of raw materials, rubber materials and fillers, and at the same time, the electric push rod 9 performs a downward contraction operation, and the servo motor 11, the spiral feeding shaft 12 and the blocking component 13 are driven by the cantilever plate 10 to move downward along the inner wall of the through groove, so that a certain distance is generated between the blocking component 13 and the bottom of the through groove, and the blocking plate 15 is between the two gear rotors 35. It is limited by the two gear rotors 35 and can effectively avoid it from rotating with the spiral feeding shaft 12 in the future. In addition, the servo motor 11 is operated in conjunction with it to drive the spiral feeding shaft 12 to rotate downward accordingly, so as to achieve the purpose of conveying materials downward. At the same time, the lever 18 and the T-plate 16 rotate synchronously with the spiral feeding shaft 12. When the lever 18 rotates, it can effectively rotate and push out the materials dropped on the blocking plate 15. After the materials required for making the fluororubber sealing ring are put in, the servo motor 11, the spiral feeding shaft 12 and the blocking component 13 are adjusted to the original position by running the electric push rod 9 again. At this time, the blocking The component 13 returns to the state of being embedded in the through groove, and then operates according to the set program through the driving motor 39, and drives one of the gear rotors 35 and one of the spur gears 37 to rotate in the set direction through the coupling 40, and the other spur gear 37 follows and drives the other gear rotor 35 to rotate, so as to continuously shear, squeeze and tear the material inside the mixing chamber 19 space, so that its particle size components are reduced and evenly dispersed, thereby achieving the purpose of rubber mixing. When the materials are mixed, according to actual needs, the heater 25 or the cooler 26 is selected to start, and the matching solenoid valve 24 is opened accordingly. At this time, the extraction pump 20 is operated in conjunction, and the water heated or cooled by the heater 25 or the cooler 26 can form a circulation flow along the inner cavity layer, the conveying conduit 21, the inside of the extraction pump 20, the integrated pipe 22, one of the first hoses 23, the inner cavity of the heater 25 or the cooler 26, and one of the second hoses 27, thereby effectively ensuring the continuous effect of heating or cooling the material inside the mixing chamber 19.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An internal mixer for producing fluororubber sealing rings, comprising a workbench (1), characterized in that: A controller (2) is fixedly mounted on the top of the workbench (1); a mixing assembly (3) is fixedly mounted on the top of the workbench (1); a protective cover (4) is fixedly mounted on the top of the mixing assembly (3) by screws; a hydraulic system (5) is fixedly mounted on both sides of the protective cover (4); the structure of the hydraulic system (5) includes a pressure block (6); a through groove is provided on the top of the pressure block (6); a C-shaped ring body (7) is fixedly mounted on the periphery of the through groove on the top of the pressure block (6); three evenly arranged feed conduits (8) are fixedly mounted on the outer surface of the C-shaped ring body (7); a notch is provided on one side of the through groove of the pressure block (6); an electric push rod (9) is mounted on the bottom wall of the notch; the electric push rod ( The telescopic end of the C-shaped ring body (9) is fixedly installed with a cantilever plate (10) extending into the interior of the C-shaped ring body (7), and a servo motor (11) is installed on the top of the cantilever plate (10) coaxial with the through groove, and the servo motor (11), the hydraulic system (5), the mixing component (3) and the electric push rod (9) are all electrically connected to the controller (2), the output end of the servo motor (11) is fixedly connected with a spiral feeding shaft (12) matching the diameter of the through groove, and the bottom of the spiral feeding shaft (12) is fixedly connected with a plugging component (13) matching the diameter of the through groove, and the bottom curvature of the plugging component (13) is consistent with the bottom curvature of the pressure block (6), and the inner wall of the C-shaped ring body (7) is threadedly connected with a dust cover (14).

2. The internal mixer for producing fluororubber sealing rings according to claim 1, characterized in that: The blocking assembly (13) comprises a blocking plate (15), a T-shaped plate (16), an engaging groove (17) and a lever (18); the T-shaped plate (16) is fixedly mounted on the bottom of the spiral feeding shaft (12); the blocking plate (15) is rotatably sleeved on the outer surface of the T-shaped plate (16) through the engaging groove (17); the lever (18) is fixedly mounted on the outer surface of the T-shaped plate (16), and the bottom of the lever (18) is in contact with the top of the blocking plate (15).

3. The internal mixer for producing fluororubber sealing rings according to claim 1, characterized in that: The structure of the mixing component (3) includes a mixing chamber (19), an inner cavity layer is arranged between the inner wall and the outer wall of the mixing chamber (19), an extraction pump (20) is installed on the top of the workbench (1), the input end of the extraction pump (20) is fixedly connected to a delivery conduit (21), and the tail end of the delivery conduit (21) extends into the inner cavity layer, the output end of the extraction pump (20) is fixedly connected to an integrated pipe (22), the outer surface of the integrated pipe (22) is fixedly connected to two first hoses (23) arranged front and back, and the outer surfaces of the two first hoses (23) are both installed with solenoid valves (24).

4. The internal mixer for producing fluororubber sealing rings according to claim 3, characterized in that: The tail end of one of the first hoses (23) is fixedly connected to a heater (25), and the tail end of the other first hose (23) is fixedly connected to a cooler (26). The outer surfaces of the heater (25) and the cooler (26) are fixedly connected to second hoses (27), and the tail ends of the two second hoses (27) extend into the upper position of the inner cavity layer.

5. The internal mixer for producing fluororubber sealing rings according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected to a buffer assembly (28) arranged in a 2×2 array by screws, the bottoms of the four buffer assemblies (28) are fixedly installed with a cabinet seat (29) by screws, the bottom of the cabinet seat (29) is fixedly installed with a foot pad (30), the structure of the buffer assembly (28) includes a damping sleeve (31), the top and bottom of the damping sleeve (31) are both provided with a threaded groove (32), the top and bottom of the damping sleeve (31) are both threadedly connected to a connecting plate (33) through the threaded groove (32), a spring (34) is placed on the top of the lower connecting plate (33), and the spring (34) is sleeved on the outer surface of the damping sleeve (31).

6. The internal mixer for producing fluororubber sealing rings according to claim 1, characterized in that: The structure of the mixing assembly (3) also includes two gear rotors (35) arranged front and back and fitting with each other, the two gear rotors (35) are rotatably connected to the inside of the mixing chamber (19), a protective shell (36) is fixedly installed on one side outer wall of the mixing chamber (19), the outer surfaces of the two gear rotors (35) are fixedly sleeved with spur gears (37), and the two spur gears (37) are both located inside the protective shell (36), and the two spur gears (37) are meshed through tooth grooves, the top of the workbench (1) is fixedly installed with a support frame (38) by screws, the top of the support frame (38) is fixedly installed with a drive motor (39) by screws, the output end of the drive motor (39) is sleeved with a coupling (40) through a rotating shaft, and the inner wall of one end of the coupling (40) is fixedly connected to one end of one of the gear rotors (35).

7. The internal mixer for producing fluororubber sealing rings according to claim 1, characterized in that: The top and bottom of the cantilever plate (10) are fixedly mounted with arc-shaped folding sheets (41), and the bottom of one of the arc-shaped folding sheets (41) is fixedly connected to the top of the workbench (1), and both sides of the top of the other arc-shaped folding sheet (41) are fixedly connected to both sides of the notch of the C-shaped ring body (7).

8. The internal mixer for producing fluororubber sealing rings according to claim 1, characterized in that: The structure of the hydraulic system (5) further comprises an N-shaped frame (42) and a hydraulic cylinder (43), wherein the N-shaped frame (42) is fixedly mounted on both sides of the protective cover (4), and the hydraulic cylinder (43) is fixedly mounted in the middle of the top of the N-shaped frame (42), and the telescopic end of the hydraulic cylinder (43) is fixedly connected to the middle of the top of the pressure block (6), and a transparent glass (44) is arranged on the front of the protective cover (4).

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