Double-screw granulator for modified plastics

Abstract

The utility model relates to the technical field of pelletizers, in particular to a double-screw pelletizer for modified plastics, which comprises a frame and a double-screw extrusion unit fixed at the top of the frame, the top of the double-screw extrusion unit is communicated with a feed inlet, the top of the frame is slidably connected with a movable frame through a T-shaped guide rail, and the movable frame is connected with a screw rod. A fastening assembly is arranged between the movable frame and the T-shaped guide rail, and a dismounting assembly is arranged at one end of the T-shaped guide rail. The inclination angle of the whole feeding box can be adjusted by matching the worm with the worm gear, the feeding amount can be preliminarily adjusted, the baffle can move up and down by rotating the threaded column, then the discharging amount can be accurately adjusted, an operator can gradually adjust the position of the baffle according to actual requirements, and the working efficiency is improved. Therefore, fine control over the discharging amount is achieved, the adjusting mechanism is simple and easy to implement, and the stability and consistency of the discharging amount can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of granulators, in particular to a twin-screw granulator for modified plastics. Background Art

[0002] Modified plastics are plastic products processed by specific methods on the basis of general plastics and engineering plastics to improve their performance. The twin-screw granulator is an important plastic processing equipment, which is widely used in granulation production in industries such as plastics, rubber, and chemical engineering, such as preparing degradable masterbatch, polyamide polycondensate, filled modified plastic particles, etc. It has the advantages of high production efficiency, good mixing effect, and adaptability to various materials. Plastics are granular materials before processing.

[0003] The twin-screw granulator mainly consists of two mutually meshing screws, a barrel, a heating and cooling system, a transmission system, an electrical control system, etc. For example, a twin-screw granulator easy to clean disclosed in the Chinese Patent Publication No. "CN216635300U" belongs to the technical field of twin-screw granulators, aiming to solve the problem that when cleaning the inside of the screw rod box body, a large number of grooves outside the screw rod box body need to be removed by tools before cleaning, thereby reducing the convenience of cleaning the inside of the screw rod box body in the twin-screw granulator, including: a main body, and the bottom of the main body is fixedly connected to a bottom plate through four support columns.

[0004] Currently, the twin-screw granulator uses manual feeding during feeding. When placing raw materials, the raw materials are directly placed in the feeding hopper and sent to the granulator through the feeding pipe. This method cannot adjust the feeding speed, and it is easy to have unstable feeding quantity and excessive feeding quantity during feeding. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages in the prior art that the feeding speed cannot be adjusted when placing raw materials, and it is easy to have unstable feeding quantity and excessive feeding quantity during feeding, and to propose a twin-screw granulator for modified plastics.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] Design a twin-screw granulator for modified plastics, including a frame and a twin-screw extrusion unit fixed on the top of the frame. An inlet is communicated at the top of the twin-screw extrusion unit. A moving frame is slidably connected to the top of the frame through a T-shaped guide rail, and a fastening component is arranged between the moving frame and the T-shaped guide rail. A disassembly component is arranged at one end of the T-shaped guide rail. The top of the moving frame is rotatably connected to a feeding box through an adjusting mechanism, and a baffle is slidably connected to one side of the feeding box through a lifting component. An outlet is opened on one side of the feeding box.

[0008] Furthermore, the fastening assembly includes T-shaped grooves formed on both sides of the bottom of the moving frame and adapted to the T-shaped guide rails, and threaded holes are penetrated through the inner walls of the T-shaped grooves, and fixing pins for positioning are threadedly connected inside the threaded holes.

[0009] Furthermore, the disassembly assembly includes a stop block movably connected to one end of the T-shaped guide rail and positioning beads fixed on both sides of one end of the T-shaped guide rail, and a groove engaged with the positioning beads is formed inside the stop block.

[0010] Furthermore, the adjusting mechanism includes support plates fixed on both sides of the top of the moving frame. Both sides of the feeding box are rotatably connected to the support plates through connecting columns, and a number of vertical plates are fixed on both sides of the top of the moving frame. A worm is rotatably connected between the two vertical plates. One end of the connecting column passes through the support plate and is fixed with a worm gear, and the worm is meshed with the worm gear.

[0011] Furthermore, the lifting assembly includes a connecting rod fixed on the outside of the baffle. A threaded column is rotatably connected to the top of the connecting rod. An installation plate is fixed on one side of the feeding box, and the threaded column is threadedly connected to the installation plate.

[0012] Furthermore, sliding grooves adapted to the baffle are formed on both sides of the inner wall of the feeding box, and rounded corner structures are provided around the inner wall of the feeding box.

[0013] The beneficial effects of the twin-screw granulator for modified plastics proposed by the present utility model are as follows: By means of the cooperation of the worm and the worm gear, the present utility model can adjust the inclination angle of the entire feeding box, and can preliminarily adjust the feeding amount. By rotating the threaded column, the up and down movement of the baffle can be realized, and further, the discharging amount can be adjusted more precisely. The operator can gradually adjust the position of the baffle according to actual needs, so as to realize the fine control of the discharging amount. This adjustment mechanism is not only simple and easy to operate, but also can ensure the stability and consistency of the discharging amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a partial three-dimensional structural schematic diagram of the present utility model Figure 1 ;

[0016] Figure 3 is a partial three-dimensional structural schematic diagram of the present utility model Figure 2 ;

[0017] Figure 4 is the present utility model Figure 1 is a partial enlarged view at A in

[0018] Figure 5 For the present utility model Figure 2 is a partial enlarged view of part B in this figure.

[0019] In the figure: 1, frame; 2, twin-screw extrusion unit; 3, feed inlet; 4, T-shaped guide rail; 5, moving frame; 6, fastening assembly; 61, T-shaped groove; 62, threaded hole; 63, fixing pin; 7, disassembly assembly; 71, stop block; 72, positioning bead; 73, groove; 8, adjusting mechanism; 81, support plate; 82, connecting column; 83, vertical plate; 84, worm; 85, worm gear; 9, feed box; 10, lifting assembly; 101, connecting rod; 102, threaded column; 103, mounting plate; 11, baffle; 12, discharge port; 13, chute. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] Referring to Figures 1-5 , a twin-screw granulator for modified plastics includes a frame 1 and a twin-screw extrusion unit 2 fixed on the top of the frame 1. A feed inlet 3 is communicated with the top of the twin-screw extrusion unit 2. A moving frame 5 is slidably connected to the top of the frame 1 through a T-shaped guide rail 4. A fastening assembly 6 is provided between the moving frame 5 and the T-shaped guide rail 4. A disassembly assembly 7 is provided at one end of the T-shaped guide rail 4. The top of the moving frame 5 is rotatably connected to a feed box 9 through an adjusting mechanism 8. A baffle 11 is slidably connected to one side of the feed box 9 through a lifting assembly 10. A discharge port 12 is opened on one side of the feed box 9; the granulator can adjust the inclination angle of the entire feed box 9 through the cooperation of the worm 84 and the worm gear 85, and can initially adjust the feed amount. By rotating the threaded column 102, the up and down movement of the baffle 11 can be realized, and then the discharge amount can be adjusted more precisely. The operator can gradually adjust the position of the baffle according to actual needs, so as to realize the fine control of the discharge amount. This adjustment mechanism is not only simple and easy to operate, but also can ensure the stability and consistency of the discharge amount.

[0022] In this embodiment, the fastening assembly 6 includes T-shaped grooves 61 opened on both sides of the bottom of the moving frame 5 and matching with the T-shaped guide rail 4. The inner wall of the T-shaped groove 61 is penetrated with threaded holes 62. A fixing pin 63 for positioning is threadedly connected inside the threaded hole 62. The T-shaped guide rail 4 can not only guide but also limit the position. The fixing pin 63 can be tightened to adjust the position of the feed box 9.

[0023] Further, the disassembly component 7 includes a stop block 71 movably connected to one end of the T-shaped guide rail 4 and positioning beads 72 fixed to both sides of one end of the T-shaped guide rail 4. A groove 73 engaged with the positioning beads 72 is formed inside the stop block 71. The stop block 71 can be fixed to one end of the T-shaped guide rail 4 through the groove 73 and the positioning beads 72, which is convenient for limiting the moving frame 5.

[0024] Furthermore, the adjusting mechanism 8 includes support plates 81 fixed to both sides of the top of the moving frame 5. Both sides of the feeding box 9 are rotatably connected to the support plates 81 through connecting columns 82. A number of vertical plates 83 are fixed to both sides of the top of the moving frame 5. A worm 84 is rotatably connected between the two vertical plates 83. One end of the connecting column 82 passes through the support plate 81 and is fixed with a worm gear 85. The worm 84 is meshed with the worm gear 85. The inclination angle of the entire feeding box 9 can be adjusted by the cooperation of the worm 84 and the worm gear 85, and the feeding amount can be preliminarily adjusted.

[0025] In addition, the lifting component 10 includes a connecting rod 101 fixed to the outside of the baffle 11. A threaded column 102 is rotatably connected to the top of the connecting rod 101. A mounting plate 103 is fixed to one side of the feeding box 9. The threaded column 102 is threadedly connected to the mounting plate 103. By rotating the threaded column 102, the up and down movement of the baffle 11 can be realized, and then the discharge amount can be adjusted more precisely.

[0026] It should be noted that sliding grooves 13 slidably connected to the baffle 11 are formed on both sides of the inner wall of the feeding box 9, and rounded corner structures are arranged around the inner wall of the feeding box 9. The sliding grooves 13 can limit the baffle 11, and the rounded corner structures can prevent materials from remaining at the corners during feeding.

[0027] Working mode: When granulation processing is carried out, the staff adds granular plastic particles into the feeding box 9. Then the staff rotates the worm 84, and the worm 84 can drive the worm gear 85 to rotate. The worm gear 85 can drive the feeding box 9 to adjust the inclination angle. Then, the fixing pin 63 is unscrewed to adjust the position of the feeding box 9 so that the discharge port 12 of the feeding box 9 is aligned with the feeding port 3 of the granulator. When feeding, the staff can rotate the threaded column 102. The rotation of the threaded column 102 on the mounting plate 103 can drive the baffle 11 to move upward. At this time, the materials will be evenly discharged from the discharge port 12 and enter the feeding port 3 for processing. Continuing to move the baffle 11 upward can adjust the size of the discharge amount. When disassembling the feeding equipment, the staff only needs to remove the stop block 71 to disassemble the moving frame 5.

[0028] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A twin-screw granulator for modified plastics, comprising a frame (1) and a twin-screw extrusion unit (2) fixed to the top of the frame (1), characterized in that: A feed port (3) is connected to the top of the twin-screw extruder unit (2); a movable frame (5) is slidably connected to the top of the frame (1) via a T-shaped guide rail (4); a fastening assembly (6) is provided between the movable frame (5) and the T-shaped guide rail (4); a disassembly assembly (7) is provided at one end of the T-shaped guide rail (4); a feed box (9) is rotatably connected to the top of the movable frame (5) via an adjustment mechanism (8); a baffle (11) is slidably connected to one side of the feed box (9) via a lifting assembly (10); and a discharge port (12) is provided on one side of the feed box (9).

2. A twin-screw granulator for modified plastics according to claim 1, characterized in that: The fastening assembly (6) comprises T-shaped slots (61) provided on both sides of the bottom of the movable frame (5) and matching with the T-shaped guide rails (4), and a threaded hole (62) is provided through the inner wall of the T-shaped slot (61), and a fixing pin (63) for positioning is connected to the internal thread of the threaded hole (62).

3. A twin-screw granulator for modified plastics according to claim 1, characterized in that: The disassembly assembly (7) comprises a stop block (71) movably connected to one end of the T-shaped guide rail (4) and positioning glass beads (72) fixed to both sides of one end of the T-shaped guide rail (4); a groove (73) for engaging with the positioning glass beads (72) is formed on the inner side of the stop block (71).

4. A twin-screw granulator for modified plastics according to claim 1, characterized in that: The adjusting mechanism (8) comprises a supporting plate (81) fixed to both sides of the top of the moving frame (5); both sides of the feeding box (9) are rotatably connected to the supporting plate (81) via connecting columns (82); a plurality of vertical plates (83) are fixed to both sides of the top of the moving frame (5); a worm (84) is rotatably connected between two of the vertical plates (83); one end of the connecting column (82) passes through the supporting plate (81) and is fixed with a worm wheel (85); the worm (84) is meshingly connected with the worm wheel (85).

5. A twin-screw granulator for modified plastics according to claim 1, characterized in that: The lifting assembly (10) includes a connecting rod (101) fixed to the outside of the baffle (11), a threaded column (102) is rotatably connected to the top of the connecting rod (101), a mounting plate (103) is fixed to one side of the feed box (9), and the threaded column (102) is threadedly connected to the mounting plate (103).

6. A twin-screw granulator for modified plastics according to claim 1, characterized in that: Slide grooves (13) slidably connected to the baffle (11) are provided on both sides of the inner wall of the feed box (9), and rounded corner structures are provided around the inner wall of the feed box (9).

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