Pearlescent color master batch production extrusion equipment

Abstract

The utility model discloses pearlescent color master batch production extrusion equipment which comprises a double-screw granulator body, and the double-screw granulator body comprises a granulation cylinder, a double-screw rod rotationally matched with the granulation cylinder, a power assembly for driving the double-screw rod to rotate and a heating assembly arranged on the granulation cylinder, a first feeding port is formed in the top of the right end of the granulation cylinder, an extrusion hole is formed in the side face of the left end of the granulation cylinder, a second feeding port is formed in the top of the section from the middle to the left end of the granulation cylinder, a hopper is connected to the first feeding port, and a forced feeding device and a weightlessness scale are arranged above the second feeding port. A discharging port of the weightlessness scale is correspondingly communicated with a feeding port of the forced feeding device, and a discharging port of the forced feeding device is correspondingly communicated with the second feeding port. By adopting the technical scheme, the damage to the pearl powder is small, the produced color master batch not only keeps the color dispersity, but also keeps the completeness of pearly luster, the pearly luster effect is good, and the quality of the color master batch is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of extrusion equipment, and in particular to an extrusion equipment for producing pearlescent masterbatch. Background Technology

[0002] Currently, pearlescent masterbatch production generally uses twin-screw extruders. During production, pearlescent powder, masterbatch raw materials, and additives are fed into the twin-screw extruder's hopper. After being conveyed, melted, and fully plasticized, the powder is extruded, cooled, and then cut into masterbatch granules by a cutting device. When using a twin-screw extruder, the long-distance extrusion of the twin screws can easily cause the pearlescent powder to be sheared and broken into smaller particles, leading to a loss of pearlescent effect or poor pearlescent effect in the produced masterbatch, affecting quality. If a single-screw extruder is used, the pearlescent powder is prone to uneven dispersion, also affecting the pearlescent effect and quality of the masterbatch. Therefore, designing an extrusion device that can improve the pearlescent effect and quality of pearlescent masterbatch has become an urgent technical problem to be solved. Utility Model Content

[0003] In order to overcome the existing technical defects, the purpose of this utility model is to provide a pearlescent masterbatch production extrusion equipment to solve the above-mentioned technical problems.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] According to one aspect of this utility model, a pearlescent masterbatch production extrusion equipment is designed, comprising: a twin-screw granulator body, the twin-screw granulator body including a granulation cylinder, a twin screw rotating with the granulation cylinder, a power component driving the twin screw to rotate, and a heating component disposed on the granulation cylinder. The granulation cylinder has a first feed port at the top right end, an extrusion hole at the side left end, and a second feed port at the top of the section from the middle to the left end of the granulation cylinder. A hopper is connected to the first feed port. A forced feeding device and a loss-in-weight scale are disposed above the second feed port. The outlet of the loss-in-weight scale is correspondingly connected to the inlet of the forced feeding device, and the outlet of the forced feeding device is correspondingly connected to the second feed port.

[0006] Using the above technical solution, the masterbatch raw material and additives can be added to the granulation cylinder through the hopper of this extrusion equipment. After being conveyed by the twin-screw extruder, melted by the heating component, and completely plasticized, the material is conveyed to the second feed inlet. Pearl powder is quantitatively added to the forced feeding device through a loss-in-weight weigher. The forced feeding device feeds the pearl powder into the granulation cylinder and mixes it with the molten material. After being kneaded and plasticized by the twin screws, the mixture reaches the left end of the granulation cylinder and is output as strips from the extrusion orifice. Then, it is water-cooled, pelletized, and dried. By setting a second feed inlet for adding pearl powder at the rear end of the granulation cylinder, the travel distance of the pearl powder in the granulation cylinder can be shortened, reducing the possibility of it being sheared and broken by the twin screws. This minimizes damage to the pearl powder, and the produced masterbatch maintains both color dispersion and pearlescent integrity, resulting in a good pearlescent effect and thus improving the quality of the masterbatch. The loss-in-weight weigher enables quantitative addition of pearl powder, and the forced feeding device ensures the smooth addition of pearl powder without causing serious dust.

[0007] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:

[0008] In some embodiments, the power assembly includes a motor and a dual-output-shaft reducer, wherein the output shaft of the motor is connected to the input shaft of the dual-output-shaft reducer via a coupling, and the two output shafts of the dual-output-shaft reducer are respectively connected to the double helical rod via couplings.

[0009] In some embodiments, the power assembly includes a motor, a drive gear connected to the motor output shaft, and two driven gears meshing with the drive gear, the two driven gears being fixed to the right end of the double helical rod.

[0010] In some embodiments, the heating assembly includes a plurality of heating tubes, and the inner wall of the granulation cylinder is provided with a plurality of annular grooves spaced laterally, with the heating tubes disposed within the annular grooves.

[0011] In some embodiments, the heating component is an electromagnetic heating coil arranged around the side wall of the granulation cylinder.

[0012] In some embodiments, the granulation cylinder is provided with a vacuum port communicating with its interior. The vacuum port is located in front of the second feed inlet, and a vacuum pump is connected to the vacuum port via a vacuum tube. The vacuum pump can remove small molecules and volatile substances from the granulation cylinder, preventing gas in the molten material from affecting the extrusion effect. Attached Figure Description

[0013] Figure 1 A schematic diagram of a pearlescent masterbatch production extrusion equipment according to one embodiment of this utility model;

[0014] Figure label:

[0015] 1. Granulation cylinder; 11. Extrusion orifice; 12. Vacuum port; 2. Power unit; 21. Motor; 22. Dual output shaft reducer; 3. Hopper; 4. Forced feeding device; 5. Loss-in-weight scale. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0019] refer to Figure 1 As shown, the present invention provides a pearlescent masterbatch production extrusion equipment, comprising: a twin-screw granulator body, the twin-screw granulator body including a granulation cylinder 1, a twin screw rotating with the granulation cylinder 1, a power component 2 for driving the twin screw to rotate, and a heating component disposed on the granulation cylinder 1.

[0020] The granulation cylinder 1 has a hollow internal structure. A first feed inlet is provided at the top right end of the granulation cylinder 1, and a hopper 3 is connected to the first feed inlet. A row of extrusion holes 11 is provided on the side of the left end of the granulation cylinder 1. A second feed inlet is provided at the top of the section from the middle to the left end of the granulation cylinder 1. The second feed inlet is located at the left side of the middle of the granulation cylinder 1. A forced feeding device 4 and a loss-in-weight scale 5 are provided above the second feed inlet. The outlet of the loss-in-weight scale 5 is connected to the inlet of the forced feeding device 4. After weighing the material, the loss-in-weight scale 5 feeds the material into the forced feeding device 4. The outlet of the forced feeding device 4 is connected to the second feed inlet. The forced feeding device 4 outputs material into the granulation cylinder 3. The forced feeding device 4 is a conventional forced feeder.

[0021] The power assembly 2 includes a motor 21 and a dual-output-shaft reducer 22. The output shaft of the motor 21 is connected to the input shaft of the dual-output-shaft reducer 22 via a coupling. The two output shafts of the dual-output-shaft reducer 22 are respectively connected to a double helical rod via couplings. The double helical rod is two helical rods, one above the other, with their left and right ends corresponding to the left and right ends of the granulation cylinder 1 for rotational engagement. Alternatively, the power assembly 2 includes a motor, a drive gear connected to the output shaft of the motor, and two driven gears meshing with the drive gear. The two driven gears are fixed to the right end of the double helical rod. In this embodiment, the power assembly 2 preferably includes a motor 21 and a dual-output-shaft reducer 22.

[0022] The heating assembly includes several heating tubes, and several annular grooves are arranged laterally on the inner sidewall of the granulation cylinder 1. The annular grooves are arranged longitudinally around the inner sidewall of the granulation cylinder 1, and the heating tubes are arranged in the annular grooves; or, the heating assembly is an electromagnetic heating coil arranged around the sidewall of the granulation cylinder 1.

[0023] The granulation cylinder 1 is provided with a vacuum port 12 that communicates with its interior. The vacuum port 12 is located in front of the second feed port, which refers to the right side of the second feed port in the figure. The vacuum port 12 is connected to a vacuum tube, which is connected to a vacuum pump.

[0024] It also includes a PLC controller, motor 21, dual-output shaft reducer 22, forced feeding device 4, loss-in-weight scale 5, heating components and vacuum pump, all of which are electrically connected to and controlled by the PLC controller.

[0025] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. An extrusion apparatus for the production of pearlescent masterbatch, characterized in that, The utility model relates to a double-screw granulator, which comprises a granulator body, a double-screw granulator body, a power assembly for driving the double-screw granulator body to rotate, and a heating assembly arranged on the double-screw granulator body. The power assembly comprises a motor and a double-output shaft speed reducer, the output shaft of the motor is connected to the input shaft of the double-output shaft speed reducer through a shaft coupling, and the two output shafts of the double-output shaft speed reducer are connected to the double-screw granulator body through shaft couplings.

2. The pearlescent masterbatch production extrusion apparatus according to claim 1, wherein, The power assembly comprises a motor, a driving gear connected to the output shaft of the motor, and two driven gears meshing with the driving gear, and the two driven gears are fixed to the right end of the double-screw granulator body.

3. The pearlescent masterbatch production extrusion apparatus according to claim 1, wherein, The heating assembly comprises a plurality of heating pipes, the inner side wall of the granulator is transversely spaced apart to form a plurality of annular grooves, and the heating pipes are arranged in the annular grooves.

4. The pearlescent masterbatch production extrusion apparatus according to claim 1, wherein, The heating assembly is an electromagnetic heating coil arranged around the side wall of the granulator.

5. The pearlescent masterbatch production extrusion apparatus according to claim 1, wherein, The granulator is provided with a vacuum port communicating with the inside of the granulator, the vacuum port is located in the front section of the second feeding port, and the vacuum port is connected to a vacuum pump through a vacuum pipe.

6. The pearlescent masterbatch production extrusion apparatus according to claim 1, wherein, ​

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