Color master extrusion cooling and pelletizing equipment

Abstract

This utility model belongs to the technical field of color masterbatch processing equipment, specifically relating to a color masterbatch extrusion, cooling, and pelletizing device. It includes a frame, with a screw extruder horizontally fixed to the top of the frame. The output end of the screw extruder has a discharge port, and a cooling tank is provided outside the discharge port. A drying mechanism is provided on the side of the cooling tank away from the frame. The drying mechanism includes a discharge trough, with a mounting frame fixedly connected to the top of the discharge trough. A cylinder is vertically fixedly connected to the top of the mounting frame, and a heater is fixedly connected to the piston rod of the cylinder. An air inlet is provided on the side wall of the heater. The beneficial effect of this utility model is that by providing a drying mechanism, the surface moisture of the color masterbatch strips can be dried after cooling, preventing the strips from sticking together during pelletizing and reducing the moisture content of the masterbatch pellets. This eliminates the need for subsequent drying, reducing processing costs.

Description

Technical Field

[0001] This utility model relates to the technical field of color masterbatch processing equipment, specifically a color masterbatch extrusion cooling pelletizing equipment. Background Technology

[0002] Color masterbatch is an indispensable special colorant in the field of polymer materials such as plastics and fibers, belonging to the category of pigment preparations. Its core structure consists of three main elements: pigment or dye, carrier resin, and dispersant. By uniformly loading an ultra-high amount of pigment into the resin matrix to form a pigment concentrate, the coloring power is increased several times compared to ordinary pigments. Color masterbatch can be divided into special color masterbatches for PE, PP, ABS, PVC, etc., according to the carrier type. Its color stability can resist ultraviolet rays, oxidation, and acid and alkali corrosion, ensuring that plastic products do not fade over long-term use; its dispersion performance is achieved by mechanical refining to ensure uniform distribution of pigment particles in the matrix, avoiding defects such as color spots and patches.

[0003] During processing, color masterbatch is mostly extruded into strips using a screw extruder, then cooled in a cooling tank, and finally cut into granules. However, after cooling in the cooling tank, the surface of the color masterbatch strips easily absorbs moisture, causing them to stick together during granulation. This also increases the moisture content of the color masterbatch granules, affecting their coloring effect. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing color masterbatch strips easily absorb moisture on their surface after cold cutting.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A masterbatch extrusion cooling pelletizing device includes a frame, a screw extruder horizontally fixedly connected to the top of the frame, a discharge port at the output end of the screw extruder, a cooling tank outside the discharge port, and a drying mechanism on the side of the cooling tank away from the frame. The drying mechanism includes a discharge trough, a mounting frame fixedly connected to the top of the discharge trough, a cylinder vertically fixedly connected to the top of the mounting frame, a heater fixedly connected to the piston rod of the cylinder, an air inlet connector on the side wall of the heater, an air inlet pipe connected to the bottom of the heater, and a drying head fixedly connected to the bottom of the air inlet pipe. The drying head is semi-circular in shape, and several air holes are formed on the inner wall of the drying head.

[0007] Furthermore, the air inlet pipe is connected to the air vent pipe, and the opening of the drying head is vertically downward.

[0008] Furthermore, a hopper is provided at the top of the input end of the screw extruder, and several heating sleeves are fitted around the outside of the screw extruder.

[0009] Furthermore, several feeding rods are horizontally rotatably connected between the inner walls of the cooling tank, and a guide groove is provided in the middle of the feeding rod.

[0010] Furthermore, a cutting bin is provided on the side of the cooling tank away from the frame, and a water suction bin is fixedly connected to the side wall of the cutting bin facing the cooling tank. A pair of water suction rollers are symmetrically rotatably connected to the upper and lower sides of the inner wall of the water suction bin.

[0011] Furthermore, a winding roller is rotatably connected to the middle of the cutting bin, and a cover is fixedly connected to the side wall of the cutting bin away from the water absorption bin.

[0012] Furthermore, a motor is fixedly connected to the outside of the housing, and the motor shaft extends into the inside of the housing. Several blades are fixedly connected to the motor shaft.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The color masterbatch extrusion cooling pelletizing equipment of this utility model is equipped with a drying mechanism, which can dry the surface moisture of the color masterbatch strips after cooling, so as to prevent the color masterbatch strips from sticking together during pelletizing and reduce the moisture content of the color masterbatch pellets. It eliminates the need for subsequent drying and reduces processing costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a masterbatch extrusion cooling pelletizing device according to the present invention.

[0016] Figure 2 This is an enlarged schematic diagram of section A of a masterbatch extrusion cooling pelletizing device according to this utility model.

[0017] Figure 3 This is a cross-sectional structural diagram of the drying head of a masterbatch extrusion cooling pelletizing device according to the present invention.

[0018] Figure 4 This is a schematic diagram of the water absorption chamber structure of a masterbatch extrusion cooling pelletizing device according to the present invention.

[0019] In the diagram: 1. Frame; 2. Screw extruder; 3. Hopper; 4. Heating sleeve; 5. Discharge port; 6. Cooling tank; 7. Feeding rod; 8. Cutting bin; 9. Winding roller; 10. Motor; 11. Drying mechanism; 1101. Discharge chute; 1102. Mounting frame; 1103. Cylinder; 1104. Heater; 1105. Air inlet connector; 1106. Air inlet pipe; 1107. Drying head; 1108. Air vent; 12. Cover; 13. Water suction bin; 14. Water suction roller. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 The masterbatch extrusion cooling pelletizing equipment of this embodiment includes a frame 1. A screw extruder 2 is horizontally fixedly connected to the top of the frame 1. The output end of the screw extruder 2 has a discharge port 5. A cooling tank 6 is provided outside the discharge port 5. A drying mechanism 12 is provided on the side of the cooling tank 6 away from the frame 1. The drying mechanism 12 includes a discharge trough 1101. A mounting frame 1102 is fixedly connected to the top of the discharge trough 1101. A cylinder 1103 is vertically fixedly connected to the top of the mounting frame 1102. A heater 1104 is fixedly connected to the piston rod of cylinder 1103. An air inlet connector 1105 is provided on the side wall of heater 1104. An air inlet pipe 1106 is connected to the bottom pipe of heater 1104. A drying head 1107 is fixedly connected to the bottom of air inlet pipe 1106. The drying head 1107 is semi-circular. Several air holes 1108 are opened on the inner wall of drying head 1107. Air inlet pipe 1106 is connected to air holes 1108. The opening of drying head 1107 is vertically downward. During the processing of the masterbatch, the masterbatch strip is extruded into shape by the screw extruder 2. The formed masterbatch strip enters the cooling tank 6 through the discharge port 5 for cooling. After cooling, the masterbatch strip passes through the discharge trough 1101. At this time, the drying head 1107 at the bottom is driven by the cylinder 1103 to move downward to the drying station, so that the drying head 1107 is sleeved on the outside of the masterbatch strip. Then, high-pressure airflow is input into the air inlet pipe 1106 through the air inlet connector 1105. When the gas passes through the heater 1104, the temperature rises. The heated airflow flows into the drying head 1107 along the air inlet pipe 1106 and finally flows out through the air hole 1108, drying the masterbatch strip inside the drying head 1107. Through the above steps, the surface moisture of the masterbatch strip can be dried after cooling, preventing the masterbatch strip from sticking together when cutting into pellets and reducing the moisture content of the masterbatch pellets.

[0022] A hopper 3 is provided at the top of the input end of the screw extruder 2, and several heating sleeves 4 are fitted around the outside of the screw extruder 2. When forming the color masterbatch, the raw material is added to the screw extruder 2 through the hopper 3, and then the raw material is heated through the heating sleeves 4 to melt it together. Finally, the color masterbatch is extruded and formed through the screw extruder 2.

[0023] Several feeding rods 7 are horizontally rotatably connected between the inner walls of the cooling tank 6, and a guide groove is provided in the middle of the feeding rod 7. When the masterbatch is cooled, it can be supported by the feeding rods 7 to prevent it from depositing at the bottom of the cooling tank 6. The guide groove can guide the flow of the masterbatch to prevent it from tilting during drying.

[0024] A cutting bin 8 is located on the side of the cooling tank 6 away from the frame 1. A water absorption bin 13 is fixedly connected to the side wall of the cutting bin 8 facing the cooling tank 6. A pair of water absorption rollers 14, made of sponge, are symmetrically rotatably connected to the upper and lower sides of the inner wall of the water absorption bin 13. After drying, the color masterbatch strip passes through the pair of water absorption rollers 14 inside the water absorption bin 13, and the water absorption rollers 14 can absorb the residual moisture on the surface of the color masterbatch strip.

[0025] A winding roller 9 is rotatably connected to the middle of the cutting bin 8, and a cover 12 is fixedly connected to the side wall of the cutting bin 8 away from the water absorption bin 13. After passing through the water absorption bin 13, the color masterbatch strip can be wound by the winding roller 9, thereby driving it to flow backward.

[0026] A motor 10 is fixedly connected to the outside of the housing 12. The rotating shaft of the motor 10 extends into the inside of the housing 12, and several blades are fixedly connected to the rotating shaft of the motor 10. After being driven by the winding roller 9, the color masterbatch flows into the housing 12. At this time, the blades are driven by the motor 10 to rotate, cutting the color masterbatch into color masterbatch particles of the required length. The housing 12 can prevent the cut color masterbatch particles from spilling out.

[0027] Working principle: During the processing of the masterbatch, the masterbatch strip is extruded into shape by the screw extruder 2. The formed masterbatch strip enters the cooling tank 6 through the discharge port 5 for cooling. After cooling, the masterbatch strip passes through the discharge trough 1101. At this time, the drying head 1107 at the bottom is driven by the cylinder 1103 to move downward to the drying position, so that the drying head 1107 is sleeved on the outside of the masterbatch strip. Then, high-pressure airflow is input into the air inlet pipe 1106 through the air inlet connector 1105. The gas temperature rises when it passes through the heater 1104. The heated airflow flows into the drying head 1107 along the air inlet pipe 1106 and finally flows out through the air hole 1108, drying the masterbatch strip inside the drying head 1107. The process involves drying the masterbatch strips. The above steps dry the surface moisture after cooling, preventing the strips from sticking together during pelletizing and reducing the moisture content of the masterbatch. After drying, the masterbatch strips pass through a pair of absorbent rollers 14 inside the absorbent chamber 13. The absorbent rollers 14 absorb any remaining moisture on the surface of the masterbatch strips. After passing through the absorbent chamber 13, the masterbatch strips are wound by the winding roller 9, driving them to flow backward. After being driven by the winding roller 9, the masterbatch strips flow into the cover 12. At this point, the motor 10 drives the blades to rotate, cutting the masterbatch strips into masterbatch of the required length. The cover 12 prevents the cut masterbatch from spilling out.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A color concentrate extrusion cooling pelletizing apparatus, characterized by: The machine includes a frame (1), to which a screw extruder (2) is horizontally fixedly connected. The output end of the screw extruder (2) has a discharge port (5). A cooling tank (6) is provided outside the discharge port (5). A drying mechanism (11) is provided on the side of the cooling tank (6) away from the frame (1). The drying mechanism (11) includes a discharge trough (1101). A mounting frame (1102) is fixedly connected to the top of the discharge trough (1101). The top of the mounting frame (1102) is vertically... A cylinder (1103) is fixedly connected to the piston rod of the cylinder (1103), and a heater (1104) is fixedly connected to the piston rod of the cylinder (1103). An air inlet connector (1105) is provided on the side wall of the heater (1104), and an air inlet pipe (1106) is connected to the bottom pipe of the heater (1104). A drying head (1107) is fixedly connected to the bottom of the air inlet pipe (1106). The drying head (1107) is arranged in a semi-circular shape, and several air holes (1108) are opened on the inner wall of the drying head (1107).

2. The color masterbatch extrusion cooling and pelletizing apparatus according to claim 1, characterized in that: The air inlet pipe (1106) is connected to the air vent (1108), and the opening of the drying head (1107) is vertically downward.

3. The color masterbatch extrusion cooling and pelletizing apparatus according to claim 1, wherein: The screw extruder (2) has a hopper (3) at the top of its input end, and a number of heating sleeves (4) are fitted around the outside of the screw extruder (2).

4. The color masterbatch extrusion cooling and pelletizing apparatus according to claim 1, wherein: A plurality of feeding rods (7) are horizontally rotatably connected between the inner walls of the cooling tank (6), and a guide groove is provided in the middle of the feeding rods (7).

5. The color masterbatch extrusion cooling and pelletizing apparatus according to claim 1, wherein: A cutting bin (8) is provided on the side of the cooling tank (6) away from the frame (1). A water suction bin (13) is fixedly connected to the side wall of the cutting bin (8) facing the cooling tank (6). A pair of water suction rollers (14) are symmetrically rotatably connected to the upper and lower sides of the inner wall of the water suction bin (13).

6. A color concentrate extrusion cooling pelletizing apparatus according to claim 5, wherein: The cutting bin (8) is rotatably connected to the middle of a winding roller (9), and a cover (12) is fixedly connected to the side wall of the cutting bin (8) away from the water absorption bin (13).

7. A color concentrate extrusion cooling and pelletizing apparatus according to claim 6, characterized in that: A motor (10) is fixedly connected to the outside of the cover (12), and the shaft of the motor (10) extends into the inside of the cover (12). Several blades are fixedly connected to the shaft of the motor (10).

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