A masterbatch melt extrusion device

Abstract

The utility model relates to a masterbatch melt extrusion device, including: an extrusion barrel, a heating box, an extrusion screw and a driving motor, and also includes a reversing mechanism, the reversing mechanism includes a discharge box, a feed chamber and a reversing chamber are arranged in the discharge box, two discharge ports are arranged between the feed chamber and the reversing chamber, the feed chamber is connected with the extrusion barrel, the reversing chamber is connected with two discharge pipes, the two discharge ports are distributed front and back correspondingly with the two discharge pipes, a reversing slider is arranged in the reversing chamber, a through hole is arranged on the reversing slider, an adjusting screw is rotatably installed on the discharge box, the adjusting screw drives the reversing slider to move, so that the discharge port is connected with the corresponding discharge pipe through the through hole. The reversing mechanism provided in the utility model connects the discharge port with the corresponding discharge pipe through the movement of the reversing slider, thereby switching different discharge pipes to prevent one of the discharge pipes from being blocked and affecting the production of subsequent equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical fiber equipment, in particular to a masterbatch melting extrusion device. Background Art

[0002] As one of the three main fibers in synthetic fibers, polyester is widely used in clothing fabrics and other non-clothing fields due to its excellent material and chemical properties. The process of polyester industrial colored yarn processing is to inject the dried A component masterbatch chips and B component high viscosity white chips into the mixing hopper through their respective injection systems according to the set ratio, mix them through the hopper agitator, melt them by the screw extruder and directly inject them into the melt pipe, and then spray them out from the spinneret of the spinning assembly after being measured by the spinning metering pump.

[0003] Existing screw extruders, for example, Chinese utility model patent with publication number CN210820846U discloses a masterbatch melt extrusion device, including a melting barrel, a support frame, an electric heating wire filter and a motor; a feeding port is provided on the upper wall of the melting barrel, an extrusion port is provided on the side wall at one end of the melting barrel, and a valve is connected above the extrusion port; at least one layer of electric heating wire filter is provided in the melting barrel, and the bottom layer of the electric heating wire filter is lower than the extrusion port, but the melting barrel is only provided with one extrusion port, which is prone to the risk of clogging, affecting the production of the rear docking equipment. Utility Model Content

[0004] The utility model provides a masterbatch melting extrusion device to solve the above problems. Different outlets are switched by a reversing mechanism to avoid blocking of one outlet and affecting the production of subsequent equipment.

[0005] The above-mentioned purpose of the utility model is achieved through the following technical solutions: a masterbatch melt extrusion device, comprising: an extrusion barrel, a heating box arranged on the outside of the extrusion barrel, an extrusion screw arranged in the extrusion barrel and a driving motor for driving the extrusion screw to rotate, and also comprising a reversing mechanism arranged at the tail end of the extrusion barrel, the reversing mechanism comprising a discharge box, a feed chamber and a reversing chamber arranged in the discharge box, two discharge ports arranged between the feed chamber and the reversing chamber, the feed chamber is connected to the extrusion barrel, the reversing chamber is connected to two discharge pipes, the two discharge ports and the two discharge pipes are distributed front and back correspondingly, a reversing slider is arranged in the reversing chamber, a through hole is arranged on the reversing slider, an adjusting screw is rotatably installed on the discharge box, the adjusting screw drives the reversing slider to move, so that the discharge port is connected to the corresponding discharge pipe through the through hole.

[0006] Preferably, the reversing slider is movably arranged in the reversing cavity, the front and rear end surfaces of the reversing slider are respectively in contact with the inner wall of the reversing cavity, and the width of the reversing cavity is greater than the width of the reversing slider.

[0007] Preferably, a nut seat is provided at the upper end of the reversing slider, and the nut seat is threadably connected to the adjusting screw.

[0008] Preferably, the through hole is arranged in the middle of the reversing slider, and the length of the parts of the reversing slider located on both sides of the through hole is greater than the width of the discharge port.

[0009] Preferably, the front and rear ends of the through hole are flared.

[0010] Preferably, a filter screen is provided in the feed cavity, and the filter screens are spaced apart from each other in the front and back.

[0011] Preferably, a mixing cylinder is provided at the front end of the extrusion cylinder, the mixing cylinder is connected to a plurality of feeding pipes, and the extrusion screw is inserted in the mixing cylinder and the extrusion cylinder.

[0012] Beneficial effects of the utility model: the reversing mechanism provided in the utility model enables the discharge port to be connected with the corresponding discharge pipe through the movement of the reversing slider, thereby switching different discharge pipes to prevent one of the discharge pipes from being blocked and affecting the production of subsequent equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0014] Figure 2 It is a cross-sectional view of an embodiment of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the reversing mechanism in the embodiment of the utility model;

[0016] In the figure: 1-extrusion barrel, 2-heating box, 3-extrusion screw, 4-driving motor, 5-mixing barrel, 6-feeding pipe, 7-reversing mechanism, 701-discharging box, 702-feeding chamber, 703-reversing chamber, 704-filter screen, 705-discharging port, 706-reversing slider, 707-through hole, 708-nut seat, 709-adjusting screw, 8-discharging pipe. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] This specific embodiment is merely an explanation of the present utility model, and it is not a limitation of the present utility model. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as it is within the scope of the claims of the present utility model, it shall be protected by the patent law.

[0019] Example: Figure 1 and Figure 2 As shown, a masterbatch melt extrusion device includes: an extrusion barrel 1, a heating box 2 arranged outside the extrusion barrel 1, an extrusion screw 3 arranged in the extrusion barrel 1, and a driving motor 4 for driving the extrusion screw 3 to rotate, and a plurality of groups of heating wires or heating rods are arranged in the heating box 2 for heating the extrusion barrel 1.

[0020] The front end of the extrusion barrel 1 is provided with a mixing barrel 5, and the mixing barrel 5 is connected to a plurality of feeding pipes 6, and the extrusion screw 3 is arranged in the mixing barrel 5 and the extrusion barrel 1. The masterbatch and other ingredients are added into the mixing barrel 5 after a certain proportion, and then the materials are transported into the extrusion barrel 1 for melting through the rotation of the extrusion screw 3.

[0021] like Figure 2 and Figure 3 As shown, the reversing mechanism 7 at the tail end of the extruder barrel 1 includes a discharge box 701, a feed chamber 702 and a reversing chamber 703 are provided in the discharge box 701, two discharge ports 705 are provided between the feed chamber 702 and the reversing chamber 703, and the feed chamber 702 is connected to the extruder barrel 1. A filter screen 704 is provided in the feed chamber 702, and the filter screen 704 is spaced apart from front to back and is used to filter impurities in the molten masterbatch mixture.

[0022] The reversing cavity 703 is connected to two discharge pipes 8 , and the two discharge ports 705 are distributed correspondingly to the two discharge pipes 8 in front and back.

[0023] A reversing slider 706 is arranged in the reversing cavity 703, and a through hole 707 is arranged on the reversing slider 706. The reversing slider 706 is movably arranged in the reversing cavity 703. The front and rear end faces of the reversing slider 706 are respectively fitted with the inner wall of the reversing cavity 703, and the width of the reversing cavity 703 is greater than the width of the reversing slider 706.

[0024] An adjusting screw 709 is rotatably installed on the discharge box 701, and a nut seat 708 is provided on the upper end of the reversing slider 706. The nut seat 708 is threadedly connected to the adjusting screw 709. The adjusting screw 709 drives the reversing slider 706 to move, so that the discharge port 705 is connected to the corresponding discharge pipe 8 through the through hole 707.

[0025] The through hole 707 is arranged in the middle of the reversing slider 706 , and the front and rear ends of the through hole 707 are flared. The length of the part of the reversing slider 706 located on both sides of the through hole 707 is greater than the width of the discharge port 705 .

[0026] Under normal circumstances, the first discharge port 705 is connected to the first discharge pipe 8 through the through hole 707, while the second discharge port 705 is blocked by other parts of the reversing slider 706. At this time, the molten masterbatch mixture is discharged from the extrusion barrel 1 through the first discharge port 705, the through hole 707 and the first discharge pipe 8 into the spinning assembly under the extrusion action of the extrusion screw 3.

[0027] When the first discharge pipe 8 is blocked, the reversing slider 706 moves axially by rotating the adjusting screw 709, so that the second discharge port 705 is connected to the second discharge pipe 8 through the through hole 707, and the first discharge port 705 is blocked by other parts of the reversing slider 706. At this time, the molten masterbatch mixture is discharged from the extrusion barrel 1 through the second discharge port 705, the through hole 707 and the second discharge pipe 8 into the spinning assembly under the extrusion action of the extrusion screw 3.

Claims

1. A masterbatch melt extrusion device, comprising: An extrusion barrel (1), a heating box (2) arranged outside the extrusion barrel (1), an extrusion screw (3) arranged inside the extrusion barrel (1), and a driving motor (4) driving the extrusion screw (3) to rotate, characterized in that it also includes a reversing mechanism (7) arranged at the rear end of the extrusion barrel (1), the reversing mechanism (7) including a discharge box (701), a feed cavity (702) and a reversing cavity (703) arranged inside the discharge box (701), two discharge ports (705) being arranged between the feed cavity (702) and the reversing cavity (703), the feed cavity (702) The reversing chamber (703) is connected to the extruder barrel (1), and two discharge pipes (8) are connected to the reversing chamber (703). The two discharge ports (705) are arranged front and rear correspondingly to the two discharge pipes (8). A reversing slider (706) is arranged in the reversing chamber (703), and a through hole (707) is arranged on the reversing slider (706). An adjusting screw (709) is rotatably mounted on the discharge box (701), and the adjusting screw (709) drives the reversing slider (706) to move, so that the discharge port (705) is connected to the corresponding discharge pipe (8) through the through hole (707).

2. A masterbatch melt extrusion device according to claim 1, characterized in that: The reversing slider (706) is movably arranged in the reversing cavity (703), the front and rear end surfaces of the reversing slider (706) are respectively fitted with the inner wall of the reversing cavity (703), and the width of the reversing cavity (703) is greater than the width of the reversing slider (706).

3. A masterbatch melt extrusion device according to claim 2, characterized in that: A nut seat (708) is provided at the upper end of the reversing slider (706), and the nut seat (708) is threadably connected to the adjusting screw rod (709).

4. A masterbatch melt extrusion device according to claim 3, characterized in that: The through hole (707) is arranged in the middle of the reversing slider (706), and the length of the parts of the reversing slider (706) located on both sides of the through hole (707) is greater than the width of the discharge port (705).

5. A masterbatch melt extrusion device according to claim 4, characterized in that: The front and rear ends of the through hole (707) are in a flared shape.

6. A masterbatch melt extrusion device according to claim 1, characterized in that: A filter screen (704) is arranged in the feed cavity (702), and the filter screens (704) are spaced apart from each other in the front and back.

7. A masterbatch melt extrusion device according to claim 1, characterized in that: A mixing cylinder (5) is provided at the front end of the extrusion cylinder (1), the mixing cylinder (5) is connected to a plurality of feeding pipes (6), and the extrusion screw (3) is inserted into the mixing cylinder (5) and the extrusion cylinder (1).

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