Online low-temperature granulator

Abstract

The utility model relates to a granulator, in particular to an online low-temperature granulator, which comprises a charging barrel and a cutting bin, an extrusion screw is arranged in the charging barrel, the charging barrel is provided with a feeding section and a discharging section, the feeding section is provided with a feeding port, the discharging section is provided with an extrusion port, a discharging die head is arranged at the extrusion port, and the cutting bin is arranged at the position of the discharging die head. The inner cooling device comprises a temperature sensor and a fan, the temperature sensor extends into the discharging section, an air outlet of the fan is aligned with the charging barrel, the outer cooling device comprises a fan communicated with the cutting bin, a feeding head is arranged at the position corresponding to the feeding opening, the feeding head moves up and down to plug the end of the strip-shaped material into the extrusion screw, and the extrusion screw is connected with the discharging section. The feeding head is provided with a material leading-in device, the material leading-in device comprises a feeding roller, the feeding roller continuously rotates for feeding and the feeding head continuously plugs materials to form a feeding device, and the feeding device, the inner cooling device and the outer cooling device work normally and cooperatively to ensure the compactness of the materials.

Description

Technical Field

[0001] The utility model relates to a granulator, in particular to an online low-temperature granulator. Background Art

[0002] The low-temperature environmentally friendly granulator is a device specially designed for recycling and reusing plastic materials at a relatively low temperature. It can avoid high temperature from damaging the material properties and reduce the generation of harmful gases. During operation, the screw rotates to transport the plastic material. During the transportation process, the plastic material is heated and melted by friction. The plastic material is overheated before extrusion. After extrusion molding, the plastic particles are slowly formed, with low density and poor quality. The plastic material is fed by air flow and automatically sucked. However, the plastic material is soft and will accumulate at the feeding port. The uneven feeding is one of the reasons for the overheating of the plastic material before extrusion. Utility Model Content

[0003] In view of the technical problems existing in the background technology, the utility model aims to provide an online low-temperature granulator, which can control the temperature of the discharge section of the barrel, feed the material evenly, and ensure the density of the plastic particles.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: the online low-temperature granulator comprises a barrel and a cutting bin, an extrusion screw is arranged in the barrel, the barrel has an inlet section and a discharge section, the inlet section is provided with a feeding port, the discharge section is provided with an extrusion port, the extrusion screw connects the feeding port and the extrusion port, a discharge die is arranged at the extrusion port, extrusion holes are distributed on the discharge die, the cutting bin is arranged at the discharge die, a cutting component is arranged in the cutting bin, the cutting component cooperates with the discharge die, and further comprises an external cooling device for continuous cooling and an internal cooling device for working again after reaching a set temperature value. The inner cooling device comprises a temperature sensor connected to the controller and a fan connected to the controller, the temperature sensor extends into the discharge section, the air outlet of the fan is aligned with the barrel, the outer cooling device comprises a fan connected to the cutting bin, a feeding head with a power source is provided at the corresponding position of the feeding port, the feeding head moves up and down to plug the end of the strip material into the extrusion screw, the feeding head is equipped with a material introduction device, the material introduction device comprises a feeding roller, the feeding roller continuously rotates to feed the material and the feeding head continuously plugs the material to form a feeding device, the feeding device, the inner cooling device and the outer cooling device work normally in coordination to ensure the density of the material.

[0005] In this solution, the controller controls the operation of the internal cooling device according to the signal of the temperature sensor. The air outlet of the fan cools the discharge section of the barrel and pre-cools the plastic material in the discharge section of the barrel. After extrusion molding, the airflow formed by the fan cools the plastic particles again, and the shaping is fast to ensure product quality. The feeding roller actively pulls the plastic material, and the feeding head moves up and down to stuff the plastic material into the feeding port to ensure uniform feeding, stable friction heat generation, stable operation of the internal cooling device at intervals, coordinated and orderly, and stable product quality.

[0006] Preferably, the feed roller is equipped with a pressure roller.

[0007] In this solution, the pressure roller and the feed roller cooperate to stably pull the plastic material.

[0008] Preferably, the pressure roller is adjustable in height.

[0009] In this solution, the pressure roller is raised and lowered to change the distance between the feed roller and the pressure roller to adapt to plastic materials of different thicknesses.

[0010] Preferably, the feeding roller is transmission-connected with a motor, the motor drives the feeding roller to rotate, and the motor is connected to the controller.

[0011] In this solution, the controller controls the motor to adjust the speed of the feed roller to meet the needs of different traction speeds.

[0012] Preferably, the feeding port is equipped with a feed bin, the feed bin is provided with a feeding port, the feeding head moves up and down in the feed bin, the feeding roller is arranged at the feeding port, the feed bin includes a guide plate, the guide plate is tiltedly arranged below the feeding port, and the lower end of the guide plate is located at the feeding port.

[0013] In this solution, the plastic material enters from the feed port through the traction of the feed roller and falls downward, and can slide down along the guide plate into the feed port.

[0014] Preferably, the feeding bin is provided with an upward opening, and the opening is provided with a glass plate.

[0015] In this solution, the glass plate forms a visual window for the operator to observe the feeding situation in the feeding bin.

[0016] Preferably, the feeding bin is connected to a feeding seat, the feeding seat is arranged at an angle, and the material introduction device is installed on the feeding seat.

[0017] In this solution, the plastic material is pulled into the feeding port by the feeding roller, and the material introduction device is tilted with the feeding seat. The traction force on the plastic material is tilted downward, and it falls toward the feeding port. Even if the plugging material breaks the plastic material, the subsequent plastic material can continue to move toward the feeding port. The feeding seat is tilted against the feed bin, and the feed bin can effectively support the feeding seat.

[0018] Preferably, the feed port is inclined upward.

[0019] In this solution, the feed port is tilted upward to adapt to the tilted material introduction device, so that the distance from the feed roller to the feed port of the plastic material is short, and the plastic material can stably enter the feed port even if it is broken.

[0020] Preferably, the material introduction device further comprises a feeding wheel, and the feeding wheel is connected to the feeding roller and the cutting device.

[0021] In this solution, the waste edges generated by the cutting device are pulled by the feeding wheel and then by the feeding roller for online granulation. The feeding wheel is designed to allow the waste edges to be wound around so that the waste edges between the cutting device and the feeding roller can be tensioned.

[0022] Preferably, the feeding wheel is narrow in the middle and wide at both sides.

[0023] In this solution, the waste will be concentrated in the middle of the feeding wheel during the traction process to prevent the waste from deviating and affecting the feeding.

[0024] The beneficial effects of the utility model are as follows: the controller controls the operation of the internal cooling device according to the signal of the temperature sensor, the air outlet of the fan cools the discharge section of the barrel, and pre-cools the plastic material in the discharge section of the barrel. After extrusion molding, the airflow formed by the fan operation cools the plastic particles again, and the shaping is fast, and the product quality is guaranteed. The feeding roller actively pulls the plastic material, and the feeding head moves up and down to plug the plastic material into the feeding port, ensuring uniform feeding, making the friction heat generation stable, and the internal cooling device works stably and at intervals, coordinated and orderly, and the product quality is stable. Therefore, compared with the prior art, the utility model has substantial characteristics and progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following describes the relevant details and working principles of the implementation methods and embodiments of the present utility model in conjunction with the accompanying drawings.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0027] Figure 2 It is a front view of the utility model.

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure inside the cutting bin of the utility model.

[0029] Figure 4 It is a three-dimensional structural schematic diagram of the material introduction device in the utility model.

[0030] Figure 5 It is a cross-sectional view of the material introduction device and the material feeding bin in the utility model.

[0031] In the figure: 1. barrel; 2. feed section; 3. discharge section; 4. discharge die; 5. extrusion hole; 6. cutting bin; 7. cutting assembly; 8. internal cooling device; 9. fan; 12. feed bin; 13. material introduction device; 15. pressure roller; 16. feed roller; 17. motor; 18. feed port; 19. guide plate; 20. feed seat; 22. feed wheel. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the implementation of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without making creative work based on the embodiments of the utility model are within the scope of protection of the utility model.

[0033] In the description of the present application, it should be understood that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0035] See attached Figure 1-5 In an example of the present embodiment, an online low-temperature granulator includes a barrel 1 and a cutting bin 6, an extrusion screw is arranged in the barrel 1, the barrel 1 has an inlet section 2 and an outlet section 3, the inlet section 2 is provided with a feeding port, the outlet section 3 is provided with an extrusion port, the extrusion screw connects the feeding port and the extrusion port, a discharge die 4 is provided at the extrusion port, extrusion holes 5 are distributed on the discharge die 4, the cutting bin 6 is arranged at the discharge die 4, a cutting component 7 is provided in the cutting bin 6, and the cutting component 7 cooperates with the discharge die 4.

[0036] The material is then fed to the feeder via a plurality of channels, and the feeder is then fed to the feeder via a plurality of channels. The plurality of channels are connected to the feeder via a plurality of channels, and the plurality of channels are connected to the feeder via a plurality of channels.

[0037] In this embodiment, the feeding roller 16 pulls the plastic material, and the plastic material enters the barrel 1 from the feeding port. The extrusion screw rotates to melt and transport the plastic material from the feeding port to the extrusion port. The molten plastic material is extruded from the extrusion hole 5 of the discharge die 4. The cutting component 7 rotates to cut the extruded strip plastic material into plastic particles. The fan 9 promotes the air flow to take away the heat on the plastic particles, so that the plastic particles are quickly formed. Among them, the plastic material can be collected production waste or waste generated by online production of plastic product production equipment; the fans of the internal and external cooling devices can be the same or different. The air outlet and air intake of the fan are not limited to the air outlet and air intake of the fan itself, but also include the air intake and air outlet extended by the extension of the pipeline. The temperature of the discharge section 3 is monitored by a temperature sensor (not shown in the figure), and the controller determines the temperature signal value When the temperature is too high, the internal cooling device 8 is driven to work. After the temperature signal value drops, the controller controls the internal cooling device 8 to stop, controls the temperature of the discharge section 3 to be optimal within a range, and the feeding head drops to press the plastic material into the feeding barrel 1 from the feeding port to ensure stable feeding. The connection between the controller and the fan, temperature sensor, and motor is not limited to electrical connection and wireless communication signal connection, as long as the signal transmission can be completed; the pressure roller 15 is raised and lowered to change the spacing between the pressure roller wheels 16 to adapt to plastic materials of different thicknesses. The controller (not shown in the figure) controls the motor 17 to adjust the speed of the feeding roller wheel 16 to adapt to the requirements of different traction speeds. The structure is reasonable and the speed regulation is convenient; the cutting component 7 is specifically a scraper, which is installed on a rotating mounting head, and the scraper blade is in contact with the surface of the discharge die head 4; the formed plastic particles can be directly used for online production of plastic product production equipment, or they can be collected.

[0038] See attached Figure 1-2, 4-5, the feeding port is equipped with a feed bin 12, the feed bin 12 is provided with a feeding port 18, the feeding head moves up and down in the feed bin 12, the feeding roller 16 is arranged at the feeding port 18, the feed bin 12 includes a guide plate 19, the guide plate 19 is tiltedly arranged below the feed port 18, the lower end of the guide plate 19 is located at the feeding port, the feed port 18 is tilted upward, the feed bin 12 is connected with a feeding seat 20, the feeding seat 20 is tilted, the material introduction device 13 is installed on the feeding seat 20, the feed bin 12 is provided with an upward opening, and the opening is provided with a glass plate.

[0039] In the present embodiment, the plastic material enters the feed bin 12 from the feed port 18 and falls down to the feed port, sliding down along the guide plate 19 into the feed port; the material introduction device 13 is inclined with the feed seat 20, and the traction force on the plastic material is inclined downward, and it falls toward the feed port. Even if the plugging material breaks the plastic material, the subsequent plastic material can continue to move toward the feed port. The feed seat 20 is inclined against the feed bin 12, and the feed bin 12 can effectively support the feed seat 20; the glass plate forms a visual window for the operator to observe the feeding situation in the feed bin 12, and opening the glass plate can also allow the operator to make adjustments in the feed bin 12.

[0040] See attached Figure 4-5 The material introduction device 13 also includes a feeding wheel 22, which is connected to the feeding roller 16 and the cutting device. The feeding wheel 22 is narrow in the middle and wide on both sides.

[0041] In this embodiment, the waste edges generated by the cutting device of the plastic product production equipment are pulled into the feed bin 12 by the feeding wheel 22 and then by the feeding roller 16 for online granulation. The feeding wheel 22 is provided for the waste edges to be wound around so that the waste edges between the cutting device and the feeding roller group 14 can be tensioned. The waste will be concentrated in the middle of the feeding wheel 22 during the traction process to prevent the waste from deviating and affecting the feeding.

[0042] The above is a preferred embodiment of the utility model, and it should be noted that the protection scope of the utility model is not limited thereto. For those skilled in the art, without departing from the equivalent inventive concept of the technical scope disclosed by the utility model, several improvements and modifications or equivalent substitutions can be made, which are also regarded as the protection scope of the utility model.

Claims

1. An online low-temperature granulator, comprising A barrel (1) is provided with an extrusion screw therein, the barrel (1) having an inlet section (2) and an outlet section (3), the inlet section (2) being provided with a feeding port, the outlet section (3) being provided with an extrusion port, the extrusion screw connecting the feeding port and the extrusion port, the extrusion port being provided with an outlet die (4), and the outlet die (4) being provided with extrusion holes (5); A cutting bin (6) is arranged at the discharge die head (4), a cutting assembly (7) is arranged in the cutting bin (6), and the cutting assembly (7) cooperates with the discharge die head (4); Features: It also includes an external cooling device for continuous cooling and an internal cooling device (8) that starts working again after reaching a set temperature value. The internal cooling device (8) comprises: a temperature sensor connected to the controller, the temperature sensor extending into the discharge section (3), and a fan connected to the controller, the air outlet of the fan being aligned with the barrel (1); The external cooling device comprises a fan (9) connected to the cutting bin (6); A feeding head with a power source is provided at a position corresponding to the feeding port, and the feeding head moves up and down to insert the end of the strip material into the extrusion screw. The feeding head is equipped with a material introduction device (13), and the material introduction device (13) includes a feeding roller (16). The feeding roller (16) continuously rotates to feed the material and the feeding head continuously inserts the material to form a feeding device. The feeding device, the internal cooling device (8) and the external cooling device work together normally to ensure the density of the material.

2. An online low-temperature granulator as claimed in claim 1, characterized in that: The feeding roller (16) is equipped with a pressure roller (15).

3. An online low-temperature granulator as claimed in claim 2, characterized in that: The pressing roller (15) is adjustable in height.

4. An online low-temperature granulator as claimed in claim 1, characterized in that: The feeding roller (16) is transmission-connected to a motor (17), the motor (17) drives the feeding roller (16) to rotate, and the motor (17) is connected to the controller.

5. An online low-temperature granulator as claimed in claim 1, characterized in that: The feeding port is provided with a feeding bin (12), the feeding bin (12) is provided with a feeding port (18), the feeding head moves up and down in the feeding bin (12), the feeding roller (16) is arranged at the feeding port (18), the feeding bin (12) comprises a guide plate (19), the guide plate (19) is arranged obliquely below the feeding port (18), and the lower end of the guide plate (19) is located at the feeding port.

6. An online low-temperature granulator as claimed in claim 5, characterized in that: The feeding bin (12) is provided with an upward opening, and the opening is provided with a glass plate.

7. An online low-temperature granulator as claimed in claim 5, characterized in that: The feed bin (12) is connected to a feed seat (20), the feed seat (20) is arranged at an angle, and the material introduction device (13) is mounted on the feed seat (20).

8. An online low-temperature granulator as claimed in claim 7, characterized in that: The feeding port (18) is inclined upward.

9. An online low-temperature granulator as claimed in claim 1, characterized in that: The material introduction device (13) further comprises a feeding wheel (22), wherein the feeding wheel (22) is connected to the feeding roller (16) and the cutting device.

10. An online low-temperature granulator as claimed in claim 9, characterized in that: The feeding wheel (22) is narrow in the middle and wide at both sides.

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