Pressure regulating body device of extrusion dehydrator

Abstract

A pressure regulating body device of an extrusion dehydrator comprises a supporting frame, a discharging end plate is arranged at the upper end of the supporting frame, a guide block is arranged on the inner wall of the discharging end plate, a pressure regulating cone is arranged in an inner cavity of the discharging end plate in a matched mode, a scraping plate is arranged at the front end of an inlet of the pressure regulating cone, and a guide groove matched with the guide block is formed in the outer wall of the pressure regulating cone. A female screw is further arranged on the outer wall of the pressure adjusting cone, an adjusting rotating ring is arranged on the outer side of the circumference of the pressure adjusting cone, a male screw matched with the female screw is arranged on the inner wall of the adjusting rotating ring, balls protruding out of the end faces are annularly and evenly distributed on the front end face and the rear end face of the adjusting rotating ring, and the adjusting rotating ring is clamped between the discharging end plate and the baffle. The rear end face of the discharging end plate and the front end face of the baffle are provided with spherical pits making contact with the balls, the outer wall of the adjusting rotating ring is hinged to a cylinder rod of a rotating oil cylinder, and a cylinder body of the rotating oil cylinder is hinged to the supporting frame. The device is simple in structure and small in adjusting resistance, and the yield of materials and the water content of the materials can be optimally balanced.

Description

Technical Field

[0001] The utility model relates to a pressure regulating body device of an extrusion dehydrator, belonging to the field of rubber post-processing machinery. Background Art

[0002] At present, there are three main types of pressure regulating bodies for extrusion dehydrators in rubber post-processing: the first is a hydraulic cylinder type pressure regulating body. Due to the high working temperature, the hydraulic sealing ring is prone to aging, affecting the sealing effect, and the leakage of the internal hydraulic oil will pollute the material; the second is the gear meshing transmission type. The gears are exposed for a long time, allowing dust, rubber particles and other impurities to enter, increasing the working resistance, and the exposed gears have safety hazards, affecting the reliability of the equipment; the third is the worm gear transmission type, which requires a circumferentially distributed worm gear assembly, has a complex structure, and has high cost and maintenance costs. Utility Model Content

[0003] In order to solve the problems of large resistance, complex structure and material pollution of the pressure regulating body of the extrusion dehydrator during operation, the utility model provides a pressure regulating body device of the extrusion dehydrator, which comprises a support frame 1, a hollow cylindrical discharge end plate 2 is provided at the upper end of the support frame 1, a plurality of guide blocks 8 are provided on the inner wall of the discharge end plate 2, the inner cavity of the discharge end plate 2 is cooperated with a pressure regulating cone 4 with a cylindrical outer wall, the inner cavity of the pressure regulating cone 4 is a cone with an inlet end larger than an outlet end, a scraper plate 3 is provided at the front end of the inlet of the pressure regulating cone 4, a guide groove 10 cooperating with the guide block 8 is provided on the outer wall of the pressure regulating cone 4, a mother spiral 9 is also provided on the outer wall of the pressure regulating cone 4, the pitch of the mother spiral 9 is smaller than the outer diameter of the pressure regulating cone 4, and an adjusting rotating ring is provided on the outer side of the circumference of the pressure regulating cone 4 5. A male screw 11 matching with the female screw 9 is provided on the inner wall of the adjusting rotating ring 5, and lubricating oil is injected between the male screw 11 and the female screw 9. Balls 12 with protruding end faces are evenly distributed in annular shapes on the front and rear end faces of the adjusting rotating ring 5. The rear end of the discharge end plate 2 is connected to the front end of the baffle 6. The adjusting rotating ring 5 is clamped between the discharge end plate 2 and the baffle 6. The rear end face of the discharge end plate 2 and the front end face of the baffle 6 are both provided with spherical pits in contact with the balls 12. The outer wall of the adjusting rotating ring 5 is hinged to the cylinder rod of the rotating cylinder 7. The cylinder body of the rotating cylinder 7 is hinged to the support frame 1. The axis of the rotating cylinder 7 is perpendicular to the axis space of the discharge end plate 2. The rotating cylinder 7 drives the adjusting rotating ring 5 to rotate around the axis and drives the pressure regulating cone 4 to move forward and backward along the axial direction.

[0004] The working principle of the utility model is:

[0005] The material outlet of the extrusion dehydrator pre-sets the pressure value P1 for the moisture content of the outlet material to meet the standard. The spiral main shaft A inside it rotates to drive the material to the pressure regulating cone 4 at the outlet. At this time, the pressure value formed in the cavity is P2. When P2 is greater than P1, the material output is low, and the rotary cylinder 7 drives the regulating rotating ring 5 to rotate around the axis. The male spiral 11 slides in the female spiral 9 groove on the outer wall of the pressure regulating cone 4, pushing the pressure regulating cone 4 and the scraper plate 3 to move backward along the guide block 8 and the guide groove 10, so that the gap L between the inner cavity of the pressure regulating cone 4 and the spiral main shaft A inside the extrusion dehydrator is increased. , the pressure in the cavity is reduced to P1, which speeds up the discharge and increases the output; when P2 is less than P1, the moisture content of the material is too high and does not meet the standard, and the rotating cylinder 7 drives the adjusting rotating ring 5 to rotate in the opposite direction around the axis to push the pressure regulating cone 4 and the scraper plate 3 to move forward. During the movement, the scraper plate 3 cleans the material adhered between the spiral main shaft A and the pressure regulating cone 4, so that the gap L between the inner cavity of the pressure regulating cone 4 and the spiral main shaft A becomes smaller, the pressure in the cavity increases to P1, and the temperature rises, thereby slowing down the discharge speed, increasing the residence time of the material in the cavity, and enhancing the dehydration effect.

[0006] The beneficial effects of the utility model are:

[0007] A. An external rotary cylinder 7 is used to drive the adjusting rotating ring 5 to rotate around the axis, driving the pressure regulating cone 4 to move axially forward and backward to adjust the gap L and control the pressure at the outlet end to achieve the best balance between the material output and the water content of the material. At the same time, the structure is simple and easy to maintain, avoiding the problem of hydraulic oil contaminating the material due to leakage.

[0008] B. Because the pitch of the mother screw 9 is smaller than the outer diameter of the pressure regulating cone 4, the rotation resistance of the regulating rotating ring 5 is small, the self-locking property is good, and the pressure at its outlet end can be accurately adjusted, thereby improving the reliability of the equipment.

[0009] C. A scraper plate 3 is provided at the front end of the entrance of the pressure regulating cone 4. When the gap L needs to be reduced to increase the pressure at the discharge port, the scraper plate 3 can clean the material adhered between the spiral main shaft A and the pressure regulating cone 4 during movement, thereby reducing the resistance during the movement of the pressure regulating cone 4 and achieving a predetermined pressure value.

[0010] D. Because the rear end of the discharge end plate 2 and the front end of the baffle 6 are in contact with the ball 12 and lubricating oil is injected between the male screw 11 and the female screw 9, the friction resistance of the adjusting rotating ring 5 during rotation is reduced, and the working efficiency of the adjusting mechanism is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional axonometric view of the utility model.

[0012] Figure 2 It is the front view of the utility model.

[0013] Figure 3 1 is a schematic structural diagram of the support frame 1.

[0014] Figure 4 Schematic diagram of the structure of the pressure regulating cone 4.

[0015] Figure 5 It is a schematic diagram of the structure of the adjusting rotating ring 5. DETAILED DESCRIPTION

[0016] The specific implementation of the utility model can be found in Figure 1 to Figure 5 A pressure regulating device for an extrusion dehydrator, comprising a support frame 1, a hollow cylindrical discharge end plate 2 is provided at the upper end of the support frame 1, a plurality of guide blocks 8 are provided on the inner wall of the discharge end plate 2, a pressure regulating cone 4 with a cylindrical outer wall is provided in the inner cavity of the discharge end plate 2, the inner cavity of the pressure regulating cone 4 is a cone with an inlet end larger than an outlet end, a scraper plate 3 is provided at the inlet front end of the pressure regulating cone 4, a guide groove 10 matching with the guide block 8 is provided on the outer wall of the pressure regulating cone 4, a female spiral 9 is also provided on the outer wall of the pressure regulating cone 4, the pitch of the female spiral 9 is smaller than the outer diameter of the pressure regulating cone 4, an adjusting rotating ring 5 is provided on the outer side of the circumference of the pressure regulating cone 4, and a screw thread matching with the female spiral 9 is provided on the inner wall of the adjusting rotating ring 5 The male screw 11 is combined, and lubricating oil is injected between the male screw 11 and the female screw 9. The front and rear end surfaces of the adjusting rotating ring 5 are evenly distributed with balls 12 with protruding end surfaces. The rear end of the discharge end plate 2 is connected to the front end of the baffle 6. The adjusting rotating ring 5 is clamped between the discharge end plate 2 and the baffle 6. The rear end surface of the discharge end plate 2 and the front end surface of the baffle 6 are both provided with spherical pits in contact with the balls 12. The outer wall of the adjusting rotating ring 5 is hinged to the cylinder rod of the rotating cylinder 7. The cylinder body of the rotating cylinder 7 is hinged to the support frame 1. The axis of the rotating cylinder 7 is perpendicular to the axis space of the discharge end plate 2. The rotating cylinder 7 drives the adjusting rotating ring 5 to rotate around the axis and drives the pressure regulating cone 4 to move forward and backward along the axial direction.

Claims

1. A pressure regulating device for an extrusion dehydrator, comprising a support frame (1), the upper end of which is provided with a hollow cylindrical discharge end plate (2), characterized in that: A plurality of guide blocks (8) are arranged on the inner wall of the discharge end plate (2); a pressure regulating cone (4) with a cylindrical outer wall is arranged in cooperation with the inner cavity of the discharge end plate (2); the inner cavity of the pressure regulating cone (4) is a cone with an inlet end larger than an outlet end; a scraper plate (3) is arranged at the front end of the inlet of the pressure regulating cone (4); a guide groove (10) cooperating with the guide blocks (8) is arranged on the outer wall of the pressure regulating cone (4); a female spiral (9) is also arranged on the outer wall of the pressure regulating cone (4); the pitch of the female spiral (9) is smaller than the outer diameter of the pressure regulating cone (4); an adjusting rotating ring (5) is arranged on the outer side of the circumference of the pressure regulating cone (4); a male spiral (11) cooperating with the female spiral (9) is arranged on the inner wall of the adjusting rotating ring (5); the male spiral (11) and the female spiral (9) are interlocked. Lubricating oil is injected into the space between the two ends of the adjusting rotating ring (5). Balls (12) with protruding end faces are evenly distributed in annular shapes on both the front and rear end faces of the adjusting rotating ring (5). The rear end of the discharge end plate (2) is connected to the front end of the baffle plate (6). The adjusting rotating ring (5) is clamped between the discharge end plate (2) and the baffle plate (6). The rear end face of the discharge end plate (2) and the front end face of the baffle plate (6) are both provided with spherical pits in contact with the balls (12). The outer wall of the adjusting rotating ring (5) is hinged to the cylinder rod of the rotating oil cylinder (7). The cylinder body of the rotating oil cylinder (7) is hinged to the support frame (1). The axis of the rotating oil cylinder (7) is vertical to the axis of the discharge end plate (2). The rotating oil cylinder (7) drives the adjusting rotating ring (5) to rotate around the axis and drives the pressure regulating cone (4) to move forward and backward along the axial direction.

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