A double screw color masterbatch extruder cutting device

Abstract

The utility model relates to the technical field of color master batch production, specifically is a kind of double screw color master batch extruder cutting device, including shell, the side inner wall of shell is fixedly connected with bearing plate, the side of shell is provided with color master batch strip, further including cooling assembly, cooling assembly includes support block, the upper surface of support block is fixedly connected with cylinder, the side inner wall of shell is slidably connected with sliding block, the side of sliding block is fixedly connected with arc cavity, the upper surface of cylinder is respectively fixedly connected with cooling pipe and liquid inlet pipe, the lower surface of arc cavity is fixedly connected with fixed base, and cutting knife is fixedly installed in the inner wall of fixed base, the upper surface of cutting knife is fixedly connected with the end of cooling pipe away from cylinder;The utility model is cooled to cutting knife by the cooling assembly setting, and cooling effect can be self-adapting according to cutting speed, to improve cutting effect.

Description

Technical Field

[0001] This utility model relates to the field of color masterbatch production technology, and in particular to a cutting device for a twin-screw color masterbatch extruder. Background Technology

[0002] Masterbatch is typically produced by using a twin-screw extruder to form long strips, which are then cut into granules by a subsequent cutting device.

[0003] In the prior art, such as Chinese Patent No. CN217751691U, a twin-screw extruder cutting device for color masterbatch production is disclosed, including: a cutting box; a support plate, fixed inside the cutting box for supporting color masterbatch strips; a cutting mechanism, slidably disposed on the inner wall of the cutting box for cutting the color masterbatch strips; an elastic pressing mechanism, installed on both sides of the cutting mechanism, which can elastically extend and retract along its axis for fixing the color masterbatch strips; a drive wheel, rotatably disposed inside the cutting box for driving the color masterbatch strips to move; a rotating shaft, rotatably disposed above the cutting box, connected to a drive motor that drives its rotation; a connecting assembly, respectively connected to the drive shaft of the rotating shaft and the drive wheel; an eccentric wheel, mounted on the rotating shaft for driving the cutting mechanism to reciprocate downward; and a discharge mechanism, disposed below the end of the support plate for discharge. This patent can press the color masterbatch strips tightly, preventing deviation during cutting, and is simple and convenient to operate.

[0004] In the above technical solution, when the masterbatch strip is cut by the cutting blade, the temperature of the extruded masterbatch strip is high. Direct continuous cutting with the cutting blade may cause the blade to soften or wear to accelerate. At the same time, the melt of the masterbatch strip will stick to the blade, causing the particles to stick together or become stringy, thus affecting the quality of the pellets.

[0005] Based on this, a cutting device for a twin-screw masterbatch extruder is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model proposes a cutting device for a twin-screw masterbatch extruder.

[0007] The technical solution to achieve the purpose of this utility model is: a cutting device for a twin-screw masterbatch extruder, including a housing, a bearing plate fixedly connected to the inner wall of one side of the housing, a masterbatch strip provided on one side of the housing, and further including;

[0008] A cooling assembly includes a support block, a cylinder fixedly connected to the upper surface of the support block, a slider slidably connected to one inner wall of the housing, an arc-shaped cavity fixedly connected to one side of the slider, a cooling pipe and a liquid inlet pipe fixedly connected to the upper surface of the cylinder, a fixing seat fixedly connected to the lower surface of the arc-shaped cavity, a cutting blade fixedly installed on the inner wall of the fixing seat, and the end of the cooling pipe away from the cylinder fixedly connected to the upper surface of the cutting blade.

[0009] In some embodiments, a spring is fixedly connected to the inner top wall of the cylinder, and a piston plate is slidably connected to the inner wall of the cylinder, with the bottom end of the spring fixedly connected to the upper surface of the piston plate.

[0010] In some embodiments, a right-angle rod is fixedly connected to the lower surface of the piston plate, and a pressure rod is fixedly connected to one end of the right-angle rod.

[0011] In some embodiments, a return pipe is fixedly connected to the upper surface of the cutting blade, the top end of the return pipe is fixedly connected to the lower surface of the arc-shaped cavity, and one-way valves are fixedly installed on the surfaces of the return pipe, the inlet pipe, and the cooling pipe.

[0012] In some embodiments, a motor is fixedly installed on one side of the housing, a rotating shaft is rotatably connected to the inner wall of one side of the housing, two eccentric wheels are fixedly connected to the surface of the rotating shaft, and a collection box is provided on the inner bottom wall of the housing.

[0013] Compared with existing technologies, the significant advantages of this invention are:

[0014] Firstly, this invention utilizes the rotation of two eccentric wheels to achieve the reciprocating lifting and lowering of the arc-shaped cavity. This reciprocating lifting and lowering of the arc-shaped cavity drives the reciprocating cutting of the cutting blade. When the arc-shaped cavity descends, it drives the pressure rod to descend, which in turn drives the right-angle rod to descend. The descent of the right-angle rod drives the piston plate to descend. The piston plate descends and draws out the coolant from inside the arc-shaped cavity through the inlet pipe. When the arc-shaped cavity rises, the coolant is sent into the cutting blade through the cooling pipe, thereby cooling the cutting blade. By directly introducing the coolant into the cutting blade, the cooling effect can be improved. After passing through the inside of the cutting blade, the coolant flows back into the inside of the arc-shaped cavity through the return pipe, thus completing the cooling cycle.

[0015] Secondly, this utility model, through the pressure rod connected to the bottom of the arc-shaped cavity, can increase the reciprocating speed of the arc-shaped cavity when the cutting speed increases, thereby driving the reciprocating speed of the pressure rod to increase. This can increase the circulation speed of the coolant during high-speed cutting, thus adaptively matching the cooling circulation speed according to the cutting speed, thereby improving the cooling effect and further enhancing the cutting effect. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural schematic diagram provided in one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the cooling component structure provided in one embodiment of the present invention;

[0019] Figure 3 This utility model provides in one embodiment Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the cutting structure of the cutting blade provided in one embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Shell; 2. Masterbatch strip; 3. Support plate; 4. Collection box; 5. Motor; 6. Support block; 7. Slider; 8. Arc cavity; 9. Rotating shaft; 10. Eccentric wheel; 11. Fixed seat; 12. Cutting blade; 13. Cooling pipe; 14. Return pipe; 15. One-way valve; 16. Cylinder; 17. Spring; 18. Piston plate; 19. Liquid inlet pipe; 20. Pressure rod; 21. Right angle rod. Detailed Implementation

[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0024] This utility model provides an improved cutting device for a twin-screw masterbatch extruder. The technical solution of this utility model is as follows:

[0025] like Figures 1-4 As shown, a cutting device for a twin-screw masterbatch extruder includes a housing 1, a bearing plate 3 fixedly connected to the inner wall of one side of the housing 1, the bearing plate 3 being made of smooth metal material, which can reduce the adhesion of the masterbatch strip 2, and a masterbatch strip 2 being provided on one side of the housing 1, and also includes;

[0026] The cooling assembly includes a support block 6, a cylinder 16 fixedly connected to the upper surface of the support block 6, a slider 7 slidably connected to the inner wall of one side of the housing 1, an arc-shaped cavity 8 fixedly connected to one side of the slider 7, the arc-shaped cavity 8 storing coolant, and a cooler can be installed on one side of the arc-shaped cavity 8 to improve the cooling effect of the coolant. A cooling pipe 13 and a liquid inlet pipe 19 are fixedly connected to the upper surface of the cylinder 16, and a fixing seat 11 is fixedly connected to the lower surface of the arc-shaped cavity 8. A cutting blade 12 is fixedly installed on the inner wall of the fixing seat 11. The cutting blade 12 is made of alloy material and is hollow inside, which can improve the uniformity of cooling of the cutting blade 12. The end of the cooling pipe 13 away from the cylinder 16 is fixedly connected to the upper surface of the cutting blade 12.

[0027] like Figure 2 and Figure 3 As shown, in one embodiment, a spring 17 is fixedly connected to the inner top wall of the cylinder 16, and a piston plate 18 is slidably connected to the inner wall of the cylinder 16. A rubber sealing ring is provided around the piston plate 18 to improve airtightness. The bottom end of the spring 17 is fixedly connected to the upper surface of the piston plate 18.

[0028] A right-angle rod 21 is fixedly connected to the lower surface of the piston plate 18. A pressure rod 20 is fixedly connected to one end of the right-angle rod 21. The movement of the pressure rod 20 can drive the right-angle rod 21 to move.

[0029] like Figure 3 and Figure 4 As shown, in one embodiment, a return pipe 14 is fixedly connected to the upper surface of the cutting blade 12, and the top end of the return pipe 14 is fixedly connected to the lower surface of the arc-shaped cavity 8. One-way valves 15 are fixedly installed on the surfaces of the return pipe 14, the liquid inlet pipe 19 and the cooling pipe 13. The one-way valve 15 is the prior art. The arrangement of the return pipe 14 can realize the return of the coolant after cooling the cutting blade 12.

[0030] like Figure 2 As shown, in one embodiment, a motor 5 is fixedly installed on one side of the housing 1, and a rotating shaft 9 is rotatably connected to the inner wall of one side of the housing 1. Two eccentric wheels 10 are fixedly connected to the surface of the rotating shaft 9. A collection box 4 is provided on the inner bottom wall of the housing 1. The collection box 4 can collect the masterbatch after pelleting. The inside of the collection box 4 is made of flexible material to avoid rigid contact between the masterbatch after pelleting and falling, which would cause damage.

[0031] The specific working method is as follows: When in use, the extruded masterbatch strip 2 moves at a constant speed on the support plate 3. The motor 5 drives the rotating shaft 9 to rotate, which in turn drives the two eccentric wheels 10 to rotate. The rotation of the two eccentric wheels 10 enables the reciprocating lifting and lowering of the arc cavity 8. The reciprocating lifting and lowering of the arc cavity 8 drives the reciprocating cutting of the cutting blade 12. When the arc cavity 8 descends, it drives the pressure rod 20 to descend. The descending of the pressure rod 20 drives the right-angle rod 21 to descend. The descending of the right-angle rod 21 drives the piston plate 18 to descend. The descending of the piston plate 18 can extract the coolant inside the arc cavity 8 through the liquid inlet pipe 19. When it rises, it can be sent into the interior of the cutting blade 12 through the cooling pipe 13 to cool the cutting blade 12. By directly introducing the coolant into the interior of the cutting blade 12, the cold cutting effect can be improved. After passing through the interior of the cutting blade 12, the coolant flows back to the interior of the arc cavity 8 through the return pipe 14, thus completing the cooling cycle.

[0032] By connecting the pressure rod 20 to the bottom of the arc-shaped cavity 8, the reciprocating speed of the arc-shaped cavity 8 can be increased when the cutting speed increases, thereby increasing the reciprocating speed of the pressure rod 20. This can increase the circulation speed of the coolant during high-speed cutting, allowing the cooling circulation speed to be adaptively matched according to the cutting speed, thus improving the cooling effect and further enhancing the cutting performance.

[0033] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A cutting device for a twin-screw masterbatch extruder, comprising a housing (1), wherein a bearing plate (3) is fixedly connected to the inner wall of one side of the housing (1), and a masterbatch strip (2) is provided on one side of the housing (1), characterized in that: Also includes; The cooling assembly includes a support block (6), a cylinder (16) is fixedly connected to the upper surface of the support block (6), a slider (7) is slidably connected to the inner wall of one side of the housing (1), an arc cavity (8) is fixedly connected to one side of the slider (7), a cooling pipe (13) and a liquid inlet pipe (19) are fixedly connected to the upper surface of the cylinder (16), a fixing seat (11) is fixedly connected to the lower surface of the arc cavity (8), a cutting blade (12) is fixedly installed on the inner wall of the fixing seat (11), and the end of the cooling pipe (13) away from the cylinder (16) is fixedly connected to the upper surface of the cutting blade (12).

2. The cutting device for a twin-screw masterbatch extruder according to claim 1, characterized in that: A spring (17) is fixedly connected to the inner top wall of the cylinder (16), and a piston plate (18) is slidably connected to the inner wall of the cylinder (16). The bottom end of the spring (17) is fixedly connected to the upper surface of the piston plate (18).

3. The cutting device for a twin-screw masterbatch extruder according to claim 2, characterized in that: A right-angle rod (21) is fixedly connected to the lower surface of the piston plate (18), and a pressure rod (20) is fixedly connected to one end of the right-angle rod (21).

4. The cutting device for a twin-screw masterbatch extruder according to claim 1, characterized in that: The upper surface of the cutting blade (12) is fixedly connected to a return pipe (14), the top end of the return pipe (14) is fixedly connected to the lower surface of the arc-shaped cavity (8), and a one-way valve (15) is fixedly installed on the surface of the return pipe (14), the liquid inlet pipe (19) and the cooling pipe (13).

5. The cutting device for a twin-screw masterbatch extruder according to claim 1, characterized in that: A motor (5) is fixedly installed on one side of the housing (1), and a rotating shaft (9) is rotatably connected to the inner wall of one side of the housing (1). Two eccentric wheels (10) are fixedly connected to the surface of the rotating shaft (9), and a collection box (4) is provided on the inner bottom wall of the housing (1).

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