A fluororubber rapid dehydration sheet extruder

Through the design of magnetic column heads and pressure-dividing components, combined with the settings of compensation components and cutting boards, the problems of low production efficiency and uneven thickness of fluoroelastic straps are solved, and efficient and uniform production of fluoroelastic straps are achieved.

CN119682162BActive Publication Date: 2025-07-18NANJING JIEYA EXTRUSION EQUIP
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Patent Information

Application Number
CN202510193481.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-07-18
Estimated Expiration
2045-02-21

AI Technical Summary

Technical Problem

The existing fluoroelastic straps have low production efficiency, serious material waste, and uneven extrusion thickness.

Method used

The design of magnetic sill head and voltage divider components is adopted, and the fluoroelastomer in the molten state is flowed to both sides by using the principle of magnetic acceleration. Combined with the settings of the compensation component and the cutting board, uniform cutting is achieved.

Benefits of technology

Improves the production efficiency of fluoroelastic strap, reduces material waste, and ensures the thickness uniformity of the extrudate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a fluororubber rapid dehydration sheet extruder, belonging to the technical field of fluororubber watchband production, which includes a processing base and a feeding motor. The feeding motor is connected with a pressurizing cone through a feeding mechanism. The end of the pressurizing cone is connected with a cooling cavity through an extrusion cavity, and the end of the cooling cavity is connected with an extrusion lip head. A magnetic assembly is arranged on the outer side wall of the pressurizing cone, and the inner side wall of the pressurizing cone is connected with a retaining collar through two universal telescopic joints. Through the arrangement of the magnetic head and the pressure dividing assembly of the present invention, the impact fluid can be used to drive the pressure dividing pipe to rotate, so that the molten fluororubber generates the power to flow to both sides, making the thickness of the edge of the produced fluororubber belt more uniform. At the same time, through the arrangement of the compensation assembly and the cutting plate, the compensation plate can be used to push the cutting plate to move downward and forward simultaneously, so that the cutting plate cuts the fluororubber belt in the extrusion moving state, ensuring that the normal operation of the extruder is not affected when pre-cutting the trapezoidal structure of the watchband.
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Description

Technical Field

[0001] The present invention relates to the technical field of fluororubber watchband production, and particularly to a fluororubber rapid dehydration sheet extruder. Background Art

[0002] Fluororubber refers to a synthetic polymer elastomer in which fluorine atoms are contained in the carbon atoms of the main chain or side chain. The introduction of fluorine atoms endows the rubber with excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance.

[0003] Currently, when producing fluororubber watchbands, since the amount of material used for a single watchband is small, generally, after manually mixing the fluororubber raw materials, strip cutting is carried out. The widths of both ends of the watchband are inconsistent. Therefore, when the watchband is hot-pressed into shape, usually, additional fluororubber is added to the wider end, or a too thick square tape is used for production to ensure that the thickness of the formed watchband is uniform. However, the production efficiency of this production method is relatively low. If a thicker tape or additional fluororubber is selected during the hot-pressing process, it usually causes waste of fluororubber materials or poor forming quality. And before extrusion, the raw materials enter the tablet press head and will spread out in it. If the rubber flow is not corrected, the edge pressure at the far end of the tablet press head will decrease, easily causing the thickness of the rubber band extruded from the edge of the sheet extruder to be uneven. Therefore, a fluororubber rapid dehydration sheet extruder is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art that the production efficiency of the production method is relatively low. If a thicker tape or additional fluororubber is selected during the hot-pressing process, it usually causes waste of fluororubber materials or poor forming quality. And before extrusion, the raw materials enter the tablet press head and will spread out in it. If the rubber flow is not corrected, the edge pressure at the far end of the tablet press head will decrease, easily causing the thickness of the rubber band extruded from the edge of the sheet extruder to be uneven, and to propose a fluororubber rapid dehydration sheet extruder.

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

[0006] A fluororubber rapid dehydration sheet extruder includes a processing base for processing and producing pre-cut fluororubber bands and a feeding motor. The feeding motor is connected to a pressure cone through a feeding mechanism. The end of the pressure cone is connected to a cooling chamber through an extrusion chamber. The end of the cooling chamber is connected to an extrusion lip head. A magnetic focusing component is arranged on the outer side wall of the pressure cone. The inner side wall of the pressure cone is connected to a retaining collar through two universal telescopic joints. The inner side wall of the retaining collar is connected to a magnetic head through an external pressure pipe. A pressure dividing component is arranged in the external pressure pipe;

[0007] The top end of the cooling chamber is connected with a mounting plate through a right-angle fixing plate. The bottom end of the mounting plate is connected with a triangular seat. The triangular seat is respectively connected with a compensation seat through an upper adjusting plate and a lower adjusting plate. A compensation component is arranged in the compensation seat. The bottom end of the compensation seat is connected with a compensation plate. The bottom end of the compensation plate is fixedly connected with a cutting plate. The cutting plate is composed of a horizontal outer frame at the edge and a plurality of oblique blades. The oblique blades of the cutting plate protrude from the horizontal outer frame. An oblique cutting groove adapted to the cutting plate is opened at the top end of the cooling chamber.

[0008] Preferably, the feeding mechanism is composed of a feeding pipe and a spiral conveying blade. The top end of the processing base is fixedly connected with the side wall of the feeding motor. The output end of the feeding motor is fixedly connected with the inner side wall of the spiral conveying blade through a driving shaft. A feeding hopper is fixedly connected to the upper side wall of the feeding pipe.

[0009] Preferably, the end of the feeding pipe is fixedly connected with the thick end of the pressure cone. The thin end of the pressure cone is fixedly connected with one end of the extrusion chamber. The other end of the extrusion chamber is fixedly connected with the extrusion lip through the cooling chamber.

[0010] Preferably, the magnetic focusing component is composed of a plurality of electromagnetic rings. The plurality of electromagnetic rings are fixedly connected through guide rods and the distance between them gradually increases. The inner side wall of one end of the electromagnetic rings is fixedly connected with the outer side wall of the pressure cone.

[0011] Preferably, the inner side wall of the pressure cone is fixedly connected with the left and right outer side walls of the retaining collar through two universal telescopic joints. The inner side wall of the retaining collar is fixedly connected with the outer side wall of the outer pressure pipe. One end of the outer pressure pipe close to the pressure cone is fixedly connected with the end face of the magnetic head. A plurality of inflow holes are opened on the end face of the magnetic head. The axis of the magnetic head and the axis of the electromagnetic ring are on the same horizontal line.

[0012] Preferably, the voltage dividing component is composed of a voltage dividing pipe and a plurality of flow blocking arc plates. The front end of the voltage dividing pipe is rotatably connected with the end face of the magnetic head. A plurality of through holes are opened at the front end of the voltage dividing pipe. The outer side wall of the voltage dividing pipe is fixedly connected with the side walls of the plurality of flow blocking arc plates. A plurality of flow dividing fish tail plates are fixedly connected to the rear end of the voltage dividing pipe.

[0013] Preferably, the compensation seat is respectively rotatably connected with the lower ends of the upper adjusting plate and the lower adjusting plate through an upper pin shaft and a lower pin shaft. The triangular seat is respectively rotatably connected with the upper ends of the upper adjusting plate and the lower adjusting plate through an upper pin shaft and a lower pin shaft.

[0014] Preferably, the compensation component is composed of a compensation shaft and a sector plate. A potentiometer is fixedly connected to the top end of the compensation plate. The output end of the potentiometer is fixedly connected with the sector plate through the compensation shaft. An arc-shaped groove adapted to the compensation shaft is opened on the side wall of the compensation seat. The upper pin shaft is connected with the lower pin shaft through a strong spring.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. Through the settings of the magnetic head and the pressure-dividing component, the present solution can drive the pressure-dividing tube to rotate by the impact fluid, and under the action of the magnetic acceleration principle, drive the magnetic head and the outer pressure tube to move in the extrusion cavity, so as to generate the power for the molten fluororubber to flow to both sides, avoiding the situation that the simple hydraulic extrusion diffusion cannot completely flow to the edge, and making the thickness of the edge of the produced fluororubber belt more uniform.

[0017] 2. Through the settings of the compensation component and the cutting plate, the present solution can use the compensation plate to push the cutting plate to move downward and forward simultaneously, so that the cutting plate cuts the fluororubber belt in the extrusion moving state, ensuring that while pre-cutting the trapezoidal structure of the watch band, it does not affect the normal operation of the extruder, and making the production of the fluororubber watch band more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a fluororubber rapid dehydration sheet extruder proposed by the present invention;

[0019] Figure 2 is Figure 1 an enlarged view of part A in

[0020] Figure 3 is a schematic structural diagram of the bottom of a fluororubber rapid dehydration sheet extruder proposed by the present invention;

[0021] Figure 4 is Figure 3 an enlarged view of part B in

[0022] Figure 5 is Figure 3 an enlarged view of part C in

[0023] Figure 6 is a schematic structural diagram of the feeding mechanism in a fluororubber rapid dehydration sheet extruder proposed by the present invention;

[0024] Figure 7 is a schematic structural diagram of the positions of two universal telescopic joints in a fluororubber rapid dehydration sheet extruder proposed by the present invention;

[0025] Figure 8 is a schematic structural diagram of the inside of the outer pressure tube in a fluororubber rapid dehydration sheet extruder proposed by the present invention;

[0026] Figure 9 is a schematic structural diagram of the position of the compensation component in a fluororubber rapid dehydration sheet extruder proposed by the present invention;

[0027] Figure 10Schematic diagram of the positions of the triangular seat and the compensation seat in a fluororubber rapid dehydration sheet extruder proposed by the present invention;

[0028] Figure 11 Schematic diagram of the structure of a pre-cut fluororubber strip produced by a fluororubber rapid dehydration sheet extruder proposed by the present invention.

[0029] In the figure: 1, processing base; 2, feeding motor; 3, feeding hopper; 4, feeding pipe; 5, spiral conveying blade; 6, pressure cone; 7, extrusion cavity; 8, cooling cavity; 9, extrusion lip; 10, electromagnetic ring; 11, universal expansion joint; 12, retaining collar; 13, outer pressure pipe; 14, magnetic head; 15, pressure dividing pipe; 16, flow blocking arc plate; 17, flow dividing fish tail plate; 18, compensation plate; 19, compensation seat; 20, potentiometer; 21, compensation shaft; 22, sector plate; 23, lower adjusting plate; 24, upper adjusting plate; 25, strong spring; 26, lower pin shaft; 27, upper pin shaft; 28, triangular seat; 29, mounting plate; 30, cutting plate; 31, pre-cut fluororubber strip. Specific embodiments

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example, refer to Figures 1 to 11, A fluororubber rapid dehydration sheet extruder, including a processing base 1 for processing and producing pre-cut fluororubber strips 31 and a feeding motor 2. The feeding motor 2 is connected to a pressure cone 6 through a feeding mechanism. The end of the pressure cone 6 is connected to a cooling cavity 8 through an extrusion cavity 7. The end of the cooling cavity 8 is connected to an extrusion lip head 9. A magnetic focusing assembly is arranged on the outer side wall of the pressure cone 6. The inner side wall of the pressure cone 6 is connected to a retaining collar 12 through two universal telescopic joints 11. The inner side wall of the retaining collar 12 is connected to a magnetic head 14 through an outer pressure tube 13. A pressure dividing assembly is arranged in the outer pressure tube 13;

[0034] Further, the feeding mechanism is composed of a feeding pipe 4 and a spiral conveying blade 5. The top end of the processing base 1 is fixedly connected to the side wall of the feeding motor 2. The output end of the feeding motor 2 is fixedly connected to the inner side wall of the spiral conveying blade 5 through a driving shaft. The upper side wall of the feeding pipe 4 is fixedly connected to a feeding hopper 3. The end of the feeding pipe 4 is fixedly connected to the thick end of the pressure cone 6. The thin end of the pressure cone 6 is fixedly connected to one end of the extrusion cavity 7. The other end of the extrusion cavity 7 is fixedly connected to the extrusion lip head 9 through the cooling cavity 8. The magnetic focusing assembly is composed of a plurality of electromagnetic rings 10. The plurality of electromagnetic rings 10 are fixedly connected through guide rods and the spacing gradually increases. The magnetic focusing assembly utilizes the principle of magnetic acceleration. The inner side wall of one end of the electromagnetic ring 10 is fixedly connected to the outer side wall of the pressure cone 6. The inner side wall of the pressure cone 6 is fixedly connected to the left and right outer side walls of the retaining collar 12 through two universal telescopic joints 11. The inner side wall of the retaining collar 12 is fixedly connected to the outer side wall of the outer pressure tube 13. One end of the outer pressure tube 13 close to the pressure cone 6 is fixedly connected to the end face of the magnetic head 14;

[0035] Among them, the two universal telescopic joints 11 on both sides can keep the magnetic head 14 moving horizontally and compensate for the angle and distance during its movement;

[0036] A plurality of inflow holes are opened on the end face of the magnetic head 14. The axis of the magnetic head 14 and the axis of the electromagnetic ring 10 are on the same horizontal line. The pressure dividing assembly is composed of a pressure dividing tube 15 and a plurality of flow blocking arc plates 16. The front end of the pressure dividing tube 15 is rotatably connected to the end face of the magnetic head 14. A plurality of through holes are opened at the front end of the pressure dividing tube 15. The outer side wall of the pressure dividing tube 15 is fixedly connected to the side walls of the plurality of flow blocking arc plates 16. The rear end of the pressure dividing tube 15 is fixedly connected to a plurality of flow dividing fish tail plates 17;

[0037] It should be noted that: Put the fluororubber production blank into the feeding hopper 3, and then let the fluororubber blank melt and flow into the feeding pipe 4. The feeding motor 2 is started to drive the spiral conveying blade 5 to rotate to convey the molten fluororubber. The above is the existing conventional technology and will not be elaborated here. The molten fluororubber enters the pressure cone 6 and will be pressurized and ejected from its thin end and enter the extrusion cavity 7;

[0038] At this time, multiple electromagnetic rings 10 are simultaneously energized, making the electromagnetic rings 10 magnetic. Then each electromagnetic ring 10 will generate a certain magnetic field around itself. These magnetic fields interact with each other in space and finally form a total magnetic field. The magnetic field at the center position of the electromagnetic ring 10 follows the principle of vector addition and will form a magnetic field that superimposes along the center of the electromagnetic ring 10 towards the thick end of the pressure cone 6. Then, affected by the superimposed magnetic field, the magnetic head 14 will move inside the pressure cone 6 along the axis of the pressure cone 6 (i.e., move in the direction opposite to the outflow direction of the fluororubber). The molten fluororubber will flow into the outer pressure tube 13 through the inflow holes on the end face of the magnetic head 14. Part of it will then flow into the pressure dividing tube 15 through the through holes at the front end of the pressure dividing tube 15, and the other part will impact the flow blocking arc plate 16, causing the pressure dividing tube 15 to rotate. The rotation of the pressure dividing tube 15 drives the rotation of multiple flow dividing fish tail plates 17, stirring the molten fluororubber to form a centrifugal vortex, giving the molten fluororubber the power to flow to both sides. After the impact is completed, the power supply to the electromagnetic ring 10 is disconnected, so that the outer pressure tube 13 returns to its original position after being impacted by the fluid, and then the electromagnetic ring 10 is energized again for another impact. It should be noted that the extrusion cavity 7 is a chamber where the fluororubber belt is initially formed, and it always maintains a high temperature state to ensure good fluidity of the fluororubber;

[0039] Based on the above benefits: This can use the impact fluid to drive the rotation of the pressure dividing tube 15, giving the molten fluororubber the power to flow to both sides, avoiding the situation that the simple hydraulic extrusion diffusion cannot completely flow to the edge, and making the thickness of the edge of the produced fluororubber belt more uniform;

[0040] The top of the cooling cavity 8 is connected with a mounting plate 29 through a right-angle fixing plate. The bottom of the mounting plate 29 is connected with a triangular seat 28. The triangular seat 28 is respectively connected with a compensation seat 19 through an upper adjusting plate 24 and a lower adjusting plate 23. A compensation component is arranged inside the compensation seat 19. The bottom of the compensation seat 19 is connected with a compensation plate 18. The bottom of the compensation plate 18 is fixedly connected with a cutting plate 30. The cutting plate 30 is composed of a horizontal outer frame at the edge and multiple diagonal cutting blades. The diagonal cutting blades of the cutting plate 30 protrude from the horizontal outer frame. An inclined cutting groove adapted to the cutting plate 30 is opened at the top of the cooling cavity 8;

[0041] Furthermore, the compensation seat 19 is respectively rotatably connected to the lower ends of the upper adjusting plate 24 and the lower adjusting plate 23 through an upper pin shaft 27 and a lower pin shaft 26. The triangular seat 28 is respectively rotatably connected to the upper ends of the upper adjusting plate 24 and the lower adjusting plate 23 through an upper pin shaft 27 and a lower pin shaft 26. The compensation component is composed of a compensation shaft 21 and a sector plate 22. The top of the compensation plate 18 is fixedly connected with a potentiometer 20. The output end of the potentiometer 20 is fixedly connected with the sector plate 22 through the compensation shaft 21. An arc-shaped groove adapted to the compensation shaft 21 is opened on the side wall of the compensation seat 19. The upper pin shaft 27 is connected with the lower pin shaft 26 through a strong spring 25;

[0042] It should be noted that when the fluororubber in a molten state flows into the cooling chamber 8 and is cooled and shaped, the potentiometer 20 is started to drive the compensation shaft 21 to deflect at an angle, thereby driving the sector plate 22 to deflect at an angle. Then, the sector plate 22 drives the upper adjusting plate 24 and the lower adjusting plate 23 to deflect downward through the upper pin shaft 27 and the lower pin shaft 26. The upper adjusting plate 24 and the lower adjusting plate 23 and the triangular seat 28 and the compensation seat 19 will form a parallelogram-like structure. When one side of the parallelogram structure moves obliquely during deformation, horizontal and vertical component displacements will be generated. Thus, while the compensation plate 18 moves downward, a forward distance movement will also be generated, further driving the cutting plate 30 to move downward and forward at the same time. By controlling the forward movement speed of the cutting plate 30 obliquely downward to be consistent with the extrusion speed of the fluororubber belt, the cutting plate 30 will maintain a relative static horizontal movement with the extruded fluororubber belt. The downward movement state of the cutting plate 30 will continuously press and cut the relatively static part of the fluororubber belt through the protruding oblique blade, completing the pre-cutting of the fluororubber belt, completing the size limitation of the production and use materials of the fluororubber watch strap, and facilitating the subsequent direct selection of the pre-cut fluororubber belt for the hot pressing production of the watch strap;

[0043] Among them, the oblique blade of the cutting plate 30 protrudes beyond the horizontal outer frame, which will keep the pre-cut fluororubber belt 31 intact horizontally, ensure the normal transverse tensile strength of the pre-cut fluororubber belt 31 after extrusion, and facilitate normal winding treatment after extrusion;

[0044] Based on the above advantages: This can utilize the compensation plate 18 to push the cutting plate 30 to move downward and forward at the same time, enabling the cutting plate 30 to cut the fluororubber belt in an extruded and moving state, ensuring that when pre-cutting the trapezoidal structure of the watch strap, it does not affect the normal operation of the extruder, and making the production of the fluororubber watch strap more efficient;

[0045] When the present invention is in use, the fluororubber production blank is placed into the hopper 3, and then the fluororubber blank is melted and flows into the feeding pipe 4. The feeding motor 2 is started to drive the spiral conveying blade 5 to rotate, so as to convey the molten fluororubber. The above is the existing conventional technology and will not be elaborated here. After the molten fluororubber enters the pressure cone 6, it will be pressurized and ejected from the narrow end and enter the extrusion cavity 7. At this time, a plurality of electromagnetic rings 10 are synchronously energized, so that the electromagnetic rings 10 are magnetized. Then each electromagnetic ring 10 will generate a certain magnetic field around itself. These magnetic fields interact with each other in space and finally form a total magnetic field. The magnetic field at the central position of the electromagnetic ring 10 in this total magnetic field follows the principle of vector addition and will form a magnetic field that is superimposed along the axis of the electromagnetic ring 10 towards the wide end of the pressure cone 6. Then the magnetic head 14 moves inside the pressure cone 6 along the axis of the pressure cone 6 under the influence of the superimposed magnetic field (that is, moves in the direction opposite to the outflow direction of the fluororubber). The universal expansion joints 11 on both sides can keep the magnetic head 14 moving horizontally and compensate for the angle and distance during its movement. Then the molten fluororubber flows into the outer pressure pipe 13 through the inflow hole on the end face of the magnetic head 14. Part of it will flow into the pressure dividing pipe 15 through the through hole at the front end of the pressure dividing pipe 15, and the other part will impact the flow blocking arc plate 16, causing the pressure dividing pipe 15 to rotate. The rotation of the pressure dividing pipe 15 drives a plurality of flow dividing fish tail plates 17 to rotate, stirring the molten fluororubber to form a centrifugal eddy current, so as to generate the power for the molten fluororubber to flow to both sides. After the impact is completed, the power supply to the electromagnetic ring 10 is disconnected, so that the outer pressure pipe 13 returns to its original position after being impacted by the fluid, and then the electromagnetic ring 10 is energized again for another impact. It should be particularly noted that the extrusion cavity 7 is a chamber for the preliminary forming of the fluororubber belt and is made of heat-insulating material, and always maintains a high temperature state inside to ensure good fluidity of the fluororubber. In this way, the impact fluid can be used to drive the pressure dividing pipe 15 to rotate, so as to generate the power for the molten fluororubber to flow to both sides, avoiding the situation that the simple hydraulic extrusion and diffusion cannot completely flow to the edge, and making the thickness of the edge of the produced fluororubber belt more uniform;

[0046] When the fluororubber in a molten state flows into the cooling chamber 8 and is cooled and shaped, the potentiometer 20 is activated to drive the compensation shaft 21 to deflect at an angle, thereby driving the sector plate 22 to deflect at an angle. Then, the sector plate 22 drives the upper adjustment plate 24 and the lower adjustment plate 23 to deflect downward through the upper pin shaft 27 and the lower pin shaft 26. The upper adjustment plate 24 and the lower adjustment plate 23 form a parallelogram-like structure with the triangular seat 28 and the compensation seat 19. When one side of the parallelogram structure moves obliquely during deformation, there will be displacement components in the horizontal and vertical directions. Thus, while the compensation plate 18 moves downward, there will also be a forward distance movement, further driving the cutting plate 30 to move downward and forward at the same time. By controlling the forward movement speed of the cutting plate 30 obliquely downward to be consistent with the extrusion speed of the fluororubber belt, the cutting plate 30 will maintain relative rest in horizontal movement with respect to the extruded fluororubber belt. The downward movement state of the cutting plate 30 will continuously press and cut the stationary part of the fluororubber belt through the protruding oblique cutting edge, completing the pre-cutting of the fluororubber belt and defining the size of the production and use materials of the fluororubber watch strap, facilitating the subsequent direct selection of the pre-cut fluororubber belt for the hot pressing production of the watch strap;

[0047] Reference Figure 11 , the oblique cutting edge of the cutting plate 30 protrudes beyond the horizontal outer frame, which will keep the pre-cut fluororubber belt 31 intact horizontally, ensuring normal transverse tensile strength of the pre-cut fluororubber belt 31 after extrusion and facilitating normal winding treatment after extrusion. In this way, the compensation plate 18 can be used to push the cutting plate 30 to move downward and forward simultaneously, enabling the cutting plate 30 to cut the fluororubber belt in an extrusion and moving state, ensuring that the normal operation of the extruder is not affected when pre-cutting the trapezoidal structure of the watch strap, and making the production of the fluororubber watch strap more efficient.

[0048] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A fluororubber rapid dehydration sheet extruder, comprising a processing base (1) and a feeding motor (2) for processing and producing a pre-cut fluororubber strip (31), characterized in that, The feeding motor (2) is connected to a pressure cone (6) through a feeding mechanism. The end of the pressure cone (6) is connected to a cooling chamber (8) through an extrusion chamber (7). The end of the cooling chamber (8) is connected to an extrusion lip head (9). A magnetic focusing assembly is arranged on the outer side wall of the pressure cone (6). The inner side wall of the pressure cone (6) is connected to a retaining collar (12) through two universal telescopic joints (11). The inner side wall of the retaining collar (12) is connected to a magnetic head (14) through an outer pressure tube (13). A pressure dividing assembly is arranged in the outer pressure tube (13). The top of the cooling chamber (8) is connected to a mounting plate (29) through a right-angle fixing plate. The bottom of the mounting plate (29) is connected to a triangular seat (28). The triangular seat (28) is connected to a compensation seat (19) through an upper adjustment plate (24) and a lower adjustment plate (23) respectively. A compensation assembly is arranged in the compensation seat (19). The bottom of the compensation seat (19) is connected to a compensation plate (18). The bottom of the compensation plate (18) is fixedly connected to a cutting plate (30). The cutting plate (30) is composed of a horizontal outer frame at the edge and a plurality of oblique blades. The oblique blades of the cutting plate (30) protrude from the horizontal outer frame. An oblique cutting groove adapted to the cutting plate (30) is opened at the top of the cooling chamber (8). The magnetic focusing assembly is composed of a plurality of electromagnetic rings (10). The plurality of electromagnetic rings (10) are fixedly connected through guide rods, and the spacing gradually increases. The inner side wall of one end of the electromagnetic rings (10) is fixedly connected to the outer side wall of the pressure cone (6). The inner side wall of the pressure cone (6) is fixedly connected to the left and right outer side walls of the retaining collar (12) through two universal telescopic joints (11). The inner side wall of the retaining collar (12) is fixedly connected to the outer side wall of the outer pressure tube (13). One end of the outer pressure tube (13) close to the pressure cone (6) is fixedly connected to the end face of the magnetic head (14). A plurality of inflow holes are opened on the end face of the magnetic head (14). The axis of the magnetic head (14) and the axis of the electromagnetic rings (10) are on the same horizontal line. The pressure dividing assembly is composed of a pressure dividing tube (15) and a plurality of flow blocking arc plates (16). The front end of the pressure dividing tube (15) is rotatably connected to the end face of the magnetic head (14). A plurality of through holes are opened at the front end of the pressure dividing tube (15). The outer side wall of the pressure dividing tube (15) is fixedly connected to the side walls of the plurality of flow blocking arc plates (16). The rear end of the pressure dividing tube (15) is fixedly connected to a plurality of flow dividing fish tail plates (17).

2. The rapid dehydration sheet extruder of a fluororubber according to claim 1, wherein, The feeding mechanism is composed of a feeding pipe (4) and a spiral conveying blade (5). The top of the processing base (1) is fixedly connected to the side wall of the feeding motor (2). The output end of the feeding motor (2) is fixedly connected to the inner side wall of the spiral conveying blade (5) through a driving shaft. The upper side wall of the feeding pipe (4) is fixedly connected to a feeding hopper (3).

3. A fluororubber rapid dehydration sheet extruder according to claim 2, characterized in that, One end of the feeding pipe (4) is fixedly connected to the thick end of the pressure cone (6). The thin end of the pressure cone (6) is fixedly connected to one end of the extrusion chamber (7). The other end of the extrusion chamber (7) is fixedly connected to the extrusion lip head (9) through the cooling chamber (8).

4. A fluororubber rapid dehydration sheet extruder according to claim 1, characterized in that, The compensation seat (19) is rotatably connected to the lower ends of the upper adjustment plate (24) and the lower adjustment plate (23) through the upper pin shaft (27) and the lower pin shaft (26) respectively, and the triangular seat (28) is rotatably connected to the upper ends of the upper adjustment plate (24) and the lower adjustment plate (23) through the upper pin shaft (27) and the lower pin shaft (26) respectively.

5. A fluororubber rapid dehydration sheet extruder according to claim 4, characterized in that, The compensation assembly consists of a compensation shaft (21) and a sector plate (22). A potentiometer (20) is fixedly connected to the top end of the compensation plate (18). The output end of the potentiometer (20) is fixedly connected to the sector plate (22) through the compensation shaft (21). An arc-shaped groove adapted to the compensation shaft (21) is formed on the side wall of the compensation seat (19). The upper pin shaft (27) is connected to the lower pin shaft (26) through a strong spring (25), and the sector plate (22) is fixedly connected to the outer side wall of the upper pin shaft (27).

Citation Information

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