Plastic master batch and production process thereof

Abstract

The invention relates to the field of plastic master batch processing, in particular to a plastic master batch and a production process thereof.The plastic master batch comprises a fixing frame, a screen box is slidably connected to a sliding mechanism on the fixing frame, a plurality of leakage grooves are formed in the screen box, a supporting plate is fixedly connected to the upper end of the screen box, a plurality of brushes are fixedly connected to the supporting plate, and the brushes are transversely arranged; a cooling pipe is fixedly connected to the lower end of the supporting plate, a plurality of water spraying holes are formed in the upper end of the supporting plate and communicate with the cooling pipe, a sliding plug is fixedly connected to one end of the cooling pipe, a cylinder is fixedly connected to the fixing frame, a water inlet pipe is fixedly connected to the cylinder, and one-way valves are installed in the cooling pipe and the water inlet pipe correspondingly. The surface of extruded strip-shaped plastic can be cleaned, and the overall quality of plastic particles is further improved.

Description

Technical Field

[0001] The invention relates to the field of plastic masterbatch processing, in particular to a plastic masterbatch and a production process thereof. Background Art

[0002] Plastic masterbatch is a concentrate made by loading an abnormal amount of plastic additives into the resin. When manufacturing plastic products, it is not necessary to add the plastic additives, but only the corresponding masterbatch. When processing plastic masterbatch, the raw materials need to be added to the screw extruder, melted and extruded into strips, and then cooled in a cold water tank. However, the cold water tank is open. After long-term use, a large amount of impurities will accumulate in the cold water tank and adhere to the strip plastic. However, they will be mixed into the plastic particles during subsequent pelletizing, thus affecting the overall quality of the plastic particles. Summary of the invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a plastic masterbatch and a production process thereof. The present invention can clean the surface of the extruded strip plastic and further improve the overall quality of the plastic particles.

[0004] A plastic masterbatch production device comprises a fixed frame, a sliding mechanism on the fixed frame is slidably connected to a screen box, a plurality of leakage slots are provided on the screen box, a support plate is fixedly connected to the upper end of the screen box, a plurality of brushes are fixedly connected to the support plate, the brushes are horizontally arranged, a cooling pipe is fixedly connected to the lower end of the support plate, a plurality of water spray holes are provided on the upper end of the support plate, and the plurality of water spray holes are all connected to the cooling pipe.

[0005] One end of the cooling pipe is fixedly connected with a sliding plug, the fixing frame is fixedly connected with a cylinder, the cylinder is fixedly connected with a water inlet pipe, and both the cooling pipe and the water inlet pipe are equipped with a one-way valve.

[0006] The sliding mechanism comprises two sliding rods, the screen box is slidably connected to the two sliding rods, the two sliding rods are both sleeved with springs, the ends of the two sliding rods are fixedly connected with baffles, and the two springs are both located between the baffles and the screen box.

[0007] The fixed frame is fixedly connected with a driving motor, the output shaft of the driving motor is fixedly connected with a cam, and the cam contacts the side wall of the screen box.

[0008] The fixing frame is fixedly connected with a connecting frame, and the connecting frame is rotatably connected with two conveying rollers.

[0009] The upper end of the connecting frame is fixedly connected with a cylinder, and the movable end of the cylinder is fixedly connected with a cutter.

[0010] The connecting frame is fixedly connected with a matching platform, which is in a triangular shape.

[0011] The connecting frame is located above the screen box. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0013] Figure 1 and Figure 2 It is a schematic diagram of the overall structure of a plastic masterbatch production device;

[0014] Figure 3 is a schematic diagram of the structure of the cutter;

[0015] Figure 4 It is the structural schematic diagram of the screen box;

[0016] Figure 5 It is a schematic diagram of the structure of the brush;

[0017] Figure 6 It is a structural schematic diagram of the sliding bar;

[0018] Figure 7 It is a structural diagram of the cam;

[0019] Figure 8 It is a schematic diagram of the structure of the cooling pipe. DETAILED DESCRIPTION

[0020] The present invention is described in detail with reference to the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 4-8 ,

[0022] A plastic masterbatch production device includes a fixed frame 101, a screen box 201 is slidably connected to the fixed frame 101 through a sliding mechanism, a plurality of leakage slots 202 are provided on the screen box 201, a support plate 301 is fixedly connected to the upper end of the screen box 201 through bolts, a plurality of brushes 302 are fixedly connected to the support plate 301 through bolts, the brushes 302 are horizontally arranged, a cooling pipe 303 is fixedly connected to the lower end of the support plate 301, a plurality of water spray holes 305 are provided on the upper end of the support plate 301, and the plurality of water spray holes 305 are all connected to the cooling pipe 303.

[0023] When using the production device, the staff first puts the strip plastic extruded by the screw extruder into a cold water tank for cooling. After the cooling treatment, the strip plastic passes through the gaps between the multiple brushes 302 and the multiple strip plastics are transmitted forward.

[0024] In the process of conveying the strip plastic, by controlling the screen box 201 to slide back and forth on the fixed frame 101, the screen box 201 drives the support plate 301 to slide back and forth. When the strip plastic passes through the gaps between the multiple brushes 302, the multiple brushes 302 play a role in cleaning the surface of the strip plastic, thereby removing impurities adhering to the surface of the strip plastic and ensuring the quality of the processed plastic particles. Under the action of the reciprocating sliding of the support plate 301, the multiple strip plastics are continuously shaken, thereby causing the multiple strip plastics to continuously shake in the cold water tank, thereby preventing the multiple strip plastics from sticking to each other when not completely cooled, thereby further ensuring the cooling effect of the strip plastic and further improving the overall quality of the plastic particles. In the process of the multiple brushes 302 cleaning the strip plastic, cold water is introduced into the cooling pipe 303, and the cold water is sprayed through the multiple water spray holes 305, thereby flushing the strip plastic, thereby improving the cleaning and cooling effects.

[0025] After being cut, the strip-shaped plastic becomes plastic particles, which fall into the screen box 201. Since the screen box 201 continuously shakes, the plastic particles can be screened, and incomplete plastic debris can be discharged through multiple troughs 202, thereby improving the overall quality of the plastic particles.

[0026] See also Figure 8 ,

[0027] One end of the cooling pipe 303 is fixedly connected to a sliding plug 401 by bolts, a cylinder 401 is fixedly connected to the fixing frame 101 by bolts, a water inlet pipe 402 is fixedly connected to the cylinder 401, and a one-way valve is installed in both the cooling pipe 303 and the water inlet pipe 402.

[0028] When the support plate 301 generates reciprocating sliding, it also drives the sliding plug 401 to generate reciprocating sliding in the cylinder 401. The cylinder 401 is used to store cold water. When the sliding plug 401 slides into the cylinder 401, the pressure in the cylinder 401 increases. At this time, the one-way valve in the cooling pipe 303 opens, the one-way valve in the water inlet pipe 402 closes, and the cold water is discharged through the cooling pipe 303, thereby realizing the function of cleaning and cooling the strip plastic. When the sliding plug 401 slides out of the cylinder 401, negative pressure is generated in the cylinder 401, the one-way valve in the cooling pipe 303 closes, and the one-way valve in the water inlet pipe 402 opens. At this time, cold water can be drawn from the outside through the water inlet pipe 402 into the cylinder 401, thereby realizing the function of automatic water replenishment.

[0029] See also Figure 6-7 ,

[0030] The sliding mechanism includes two sliding rods 203, both of which are fixedly connected to the fixed frame 101, and the screen box 201 is slidably connected to the two sliding rods 203. The two sliding rods 203 are both covered with springs 204. The ends of the two sliding rods 203 are fixedly connected with baffles, and the two springs 204 are both located between the baffles and the screen box 201.

[0031] The screen box 201 achieves the function of screening the plastic particles by sliding on the two slide bars 203. The two slide bars 203 have the function of limiting the position of the screen box 201, thereby ensuring that the screen box 201 can move laterally.

[0032] See also Figure 6 ,

[0033] A driving motor 103 is fixedly connected to the fixing frame 101 by means of bolts, and a cam 102 is fixedly connected to the output shaft of the driving motor 103 by means of bolts. The cam 102 contacts the side wall of the screen box 201 .

[0034] The cam 102 is driven to rotate by the driving motor 103 , and the screen box 201 can slide back and forth under the continuous movement of the cam 102 and the cooperation of the two springs 204 .

[0035] See also Figure 3 ,

[0036] The fixing frame 101 is fixedly connected to a connecting frame 501 by means of bolts, and two conveying rollers 502 are rotatably connected to the connecting frame 501 by means of bearings.

[0037] The two conveying rollers 502 are driven to rotate by an external motor, and the strip-shaped plastic after cleaning passes through the middle of the two conveying rollers 502 . The strip-shaped plastic is conveyed by the two conveying rollers 502 , so as to facilitate the subsequent granulation process.

[0038] See also Figure 1-3 ,

[0039] The upper end of the connecting frame 501 is fixedly connected to a cylinder 503 by bolts, and the movable end of the cylinder 503 is fixedly connected to a cutter 504. When the strip plastic is discharged between the two conveying rollers 502, the movable end of the cylinder 503 drives the cutter 504 to move downward to cut and granulate the strip plastic.

[0040] See also Figure 1-3 ,

[0041] A matching platform 505 is welded and fixedly connected to the connecting frame 501. The matching platform 505 is triangular and can better cooperate with the cutter 504 to cut the strip plastic, making the incision neat, further avoiding the breakage of the plastic particles, and improving the quality of the plastic particles.

[0042] See also Figure 1 ,

[0043] The connecting frame 501 is located above the screen box 201, and the cut plastic particles can directly fall into the screen box 201 for screening, thereby improving production efficiency.

[0044] A plastic masterbatch production process, the process comprising the following steps:

[0045] Step 1: Put the strip plastic extruded by the screw extruder into a cold water tank for cooling, and the strip plastic after cooling passes through the gaps between the multiple brushes 302;

[0046] Step 2: With the continuous movement of the cam 102 and the cooperation of the two springs 204, the screen box 201 can slide back and forth, so that the multiple strips of plastic produce continuous shaking in the cold water tank;

[0047] Step 3: Pass the cleaned strip plastic through the middle of the two conveying rollers 502, and use the two conveying rollers 502 to convey the strip plastic;

[0048] Step 4: Use the cylinder 503 to push the cutter 504 to pelletize the strip plastic;

[0049] Step 5: Use the screen box 201 to screen the plastic particles.

[0050] A plastic masterbatch produced by a production device, the raw materials of which include: 70 parts of low-density polyethylene; 30 parts of linear low-density polyethylene; 5 parts of silver ion antibacterial agent; 2 parts of polyethylene wax; and 1 part of stearic acid.

Claims

1. A plastic masterbatch production device, characterized in that: The invention comprises a fixed frame (101), a screen box (201) is slidably connected to the fixed frame (101) via a sliding mechanism, a plurality of leakage slots (202) are provided on the screen box (201), a support plate (301) is fixedly connected to the upper end of the screen box (201), a plurality of brushes (302) are fixedly connected to the support plate (301), the brushes (302) are arranged horizontally, a cooling pipe (303) is fixedly connected to the lower end of the support plate (301), a plurality of water spray holes (305) are provided on the upper end of the support plate (301), and the plurality of water spray holes (305) are all connected to the cooling pipe (303).

2. A plastic masterbatch production device according to claim 1, characterized in that: One end of the cooling pipe (303) is fixedly connected to a sliding plug (401), the fixed frame (101) is fixedly connected to a cylinder (401), the cylinder (401) is fixedly connected to a water inlet pipe (402), and both the cooling pipe (303) and the water inlet pipe (402) are installed with a one-way valve.

3. A plastic masterbatch production device according to claim 2, characterized in that: The sliding mechanism comprises two sliding rods (203), the two sliding rods (203) are fixedly connected to the fixed frame (101), the screen box (201) is slidably connected to the two sliding rods (203), the two sliding rods (203) are sleeved with springs (204), the ends of the two sliding rods (203) are fixedly connected with baffles, and the two springs (204) are located between the baffles and the screen box (201).

4. A plastic masterbatch production device according to claim 3, characterized in that: The fixed frame (101) is fixedly connected to a driving motor (103), an output shaft of the driving motor (103) is fixedly connected to a cam (102), and the cam (102) is in contact with a side wall of the screen box (201).

5. A plastic masterbatch production device according to claim 4, characterized in that: The fixed frame (101) is fixedly connected to a connecting frame (501), and the connecting frame (501) is rotatably connected to two conveying rollers (502).

6. A plastic masterbatch production device according to claim 5, characterized in that: The upper end of the connecting frame (501) is fixedly connected to a cylinder (503), and the movable end of the cylinder (503) is fixedly connected to a cutter (504).

7. A plastic masterbatch production device according to claim 6, characterized in that: The connecting frame (501) is fixedly connected with a matching platform (505), and the matching platform (505) is triangular.

8. A plastic masterbatch production device according to claim 7, characterized in that: The connecting frame (501) is located above the screen box (201).

9. A plastic masterbatch production process, characterized in that: The process includes the following steps: Step 1: placing the strip plastic extruded by the screw extruder into a cold water tank for cooling, and passing the cooled strip plastic through the gaps between the plurality of brushes (302); Step 2: Under the continuous movement of the cam (102) and the cooperation of the two springs (204), the screen box (201) is able to slide back and forth, so that the multiple strip-shaped plastics are continuously shaken in the cold water tank; Step 3: Pass the cleaned strip plastic through the middle of two conveying rollers (502), and use the two conveying rollers (502) to convey the strip plastic; Step 4: using the cylinder (503) to push the cutter (504) to pelletize the strip plastic; Step 5: Using the screen box (201) to screen the plastic particles.

10. A plastic masterbatch produced by a production device, the raw materials of which include: Low density polyethylene: 70 parts; Linear low-density polyethylene: 30 parts; Silver ion antibacterial agent: 3-5 parts; Polyethylene wax: 1-2 parts; Stearic acid: 0.5-1 part.

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