A plastic master batch drying device

Abstract

The utility model relates to the technical field of plastic master batch processing discloses a plastic master batch drying device, including the feed inlet box of fixed on the drying barrel, and feed inlet box communicates with the drying barrel, rotates and installs the horizontal support shaft in the feed inlet box, a plurality of branch plates are fixedly arranged on the support shaft, a plurality of branch plates are evenly distributed along the circumference of support shaft, two circular rotating plates are fixedly set on the support shaft, and each branch plate is located between two circular rotating plates, two branch plates and two circular rotating plates jointly enclose a feeding groove, the switch spare for controlling the opening and closing of the slot is installed in the slot of each feeding groove, the air collecting cover is fixed on the feed inlet box and is communicated, the air collecting cover is communicated with the pipeline that the hot air is passed to the drying barrel through a connecting pipe, and the air hole is set up on two circular rotating plates and all branch plates. The utility model discloses replace single time a great deal of feeding with many times a little, cooperate the uninterrupted stirring and drying in the drying barrel, and effectively promote the drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic masterbatch processing technology, and in particular to a plastic masterbatch drying device. Background Technology

[0002] Masterbatch refers to the granular material produced during plastic processing. For ease of operation, various additives, fillers, and a small amount of carrier resin are mixed and kneaded, then processed through equipment such as extruders through metering, mixing, melting, extrusion, and pelletizing. Masterbatch consists of carrier resin, various fillers, and various additives. The limits of additives or filler content in masterbatch are several to ten times higher than the required amount in the actual plastic product. During processing, the raw materials for plastic masterbatch need to be dried to ensure they remain dry.

[0003] The plastic masterbatch drying equipment described in announcement number CN214582234U includes a drying barrel body and a stirring assembly disposed inside the drying barrel body. The bottom of the drying barrel body is provided with a discharge port. The stirring assembly includes a stirring motor disposed at the top of the drying barrel body, a stirring shaft connected to the main shaft of the stirring motor, and a stirring paddle disposed on the stirring shaft. The top of the drying barrel body is provided with an air inlet pipe and an air outlet pipe, and a circulating fan is connected between the air inlet pipe and the air outlet pipe. The stirring shaft is a hollow shaft, and a connecting rod is provided at the bottom end of the stirring shaft. A scraper is connected to the end of the connecting rod. The connecting rod is a hollow rod and has an air outlet hole. A rotary joint is provided at the top of the stirring shaft, and the air inlet pipe is connected to the rotary joint.

[0004] Based on the above technical features, the problem is that in the existing technology, a large amount of plastic masterbatch needs to be put into the drying drum during drying. In order to ensure that all the plastic masterbatch is in full contact with the gas used for drying, the plastic masterbatch needs to be stirred for a long time, resulting in low stirring efficiency and high energy consumption. Utility Model Content

[0005] The purpose of this invention is to provide a plastic masterbatch drying device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a plastic masterbatch drying device, comprising a feeding box fixed on a drying drum, the feeding box being connected to the drying drum, and a feeding funnel being fixedly and connected to the top of the feeding box;

[0007] A horizontal support shaft is rotatably installed inside the feed box, and the support shaft is located directly below the feed funnel; multiple material distribution plates are fixedly installed on the support shaft, and the multiple material distribution plates are evenly distributed along the circumference of the support shaft;

[0008] Two circular rotating plates are fixedly sleeved on the support shaft, and each material distribution plate is located between the two circular rotating plates; two adjacent material distribution plates and the two circular rotating plates together form a feeding trough;

[0009] Each feeding trough is equipped with a switch at its opening to control the opening and closing of the trough.

[0010] The feed box is fixed and connected to an air collecting hood, which is connected to a pipe that supplies hot air into the drying barrel through a connecting pipe.

[0011] Ventilation holes are provided on both circular rotating plates and all material distribution plates.

[0012] Preferably, the switch includes a rotating shaft, which is parallel to the support shaft and rotatably mounted between two circular rotating plates and located at the end of the material distribution plate away from the support shaft; a baffle is fixedly provided on the rotating shaft, and the baffle is in contact with and abuts against the end of the material distribution plate where the rotating shaft is located away from the support shaft for limiting engagement.

[0013] Preferably, a stop bar parallel to the support shaft is fixedly provided between the two circular rotating plates, and the rotating shaft is located between the stop bar and the material distribution plate; the stop plate and the stop bar are in contact and mutually abutting limiting cooperation.

[0014] Preferably, a torsion spring is fitted on the rotating shaft, with one end of the torsion spring fixedly connected to the baffle and the other end fixedly connected to the circular rotating plate.

[0015] Preferably, a motor is fixedly installed on the feed box, and the output shaft of the motor is coaxially and fixedly connected to the support shaft.

[0016] Preferably, the feeding box has a discharge port that communicates with the drying barrel; a guide plate is fixedly installed inside the feeding box, and the guide plate is located below the support shaft and inclined towards the discharge port.

[0017] Preferably, the feeding box is provided with an air inlet and an air outlet; the air inlet is connected to the air collecting hood and the feeding box.

[0018] The technical effects and advantages of this utility model are as follows: This utility model feeds a large amount of plastic masterbatch into multiple small portions by feeding through a feeding trough, changing the single large-volume feeding to multiple small-volume feeding. Combined with the continuous stirring and drying in the drying barrel, the drying efficiency is effectively improved. At the same time, hot air is circulated into the feeding box through the air collection hood, which can carry out initial drying and further improve the drying efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the inside of the feed box of this utility model;

[0021] Figure 3 This is a schematic diagram of the feeding trough of this utility model;

[0022] Figure 4 This is an enlarged schematic diagram of part A of this utility model.

[0023] In the diagram: 1. Feed box; 2. Feed hopper; 3. Motor; 4. Support shaft; 5. Distributor plate; 6. Circular rotating plate; 7. Baffle; 8. Rotating shaft; 9. Baffle; 10. Guide plate; 11. Discharge port; 12. Air inlet; 13. Air collection hood; 14. Connecting pipe; 15. Air outlet. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figures 1 to 4 The plastic masterbatch drying device shown includes a feed box 1 fixed on a drying barrel, the feed box 1 being connected to the drying barrel, and a feed funnel 2 being fixedly and connected to the top of the feed box 1.

[0026] The feed box 1 has a discharge port 11 that communicates with the drying barrel. A guide plate 10 is fixedly installed inside the feed box 1. The guide plate 10 is located below the support shaft 4 and is inclined towards the discharge port 11.

[0027] A horizontal support shaft 4 is placed inside the feed box 1. The support shaft 4 is located directly below the feed funnel 2 and is rotatably connected to the feed box 1. A motor 3 is fixedly installed on the feed box 1, and the output shaft of the motor 3 is coaxially and fixedly connected to the support shaft 4.

[0028] Multiple material distribution plates 5 are fixedly installed on the support shaft 4. Each material distribution plate 5 is parallel to the support shaft 4 and is arranged radially along the support shaft 4. The multiple material distribution plates 5 are evenly distributed circumferentially along the support shaft 4.

[0029] Two circular rotating plates 6 are fixedly mounted on the support shaft 4, and each material distribution plate 5 is located between the two circular rotating plates 6. The two adjacent material distribution plates 5 and the two circular rotating plates 6 together form a feeding trough.

[0030] Each feeding trough is equipped with a switch at its opening to control the opening and closing of the trough.

[0031] Specifically, the switching element includes a rotating shaft 8. Each circular rotating plate 6 has a rotating shaft 8 parallel to the support shaft 4 at its end away from the support shaft 4. Each rotating shaft 8 is located between two circular rotating plates 6 and is rotatably connected to both circular rotating plates 6.

[0032] A baffle 9 is fixedly installed on the rotating shaft 8. The baffle 9 is in contact with the end of the material distribution plate 5 where the rotating shaft 8 is located, away from the support shaft 4, and is in a limiting contact fit.

[0033] Multiple stop bars 7 parallel to the support shaft 4 are fixedly installed between the two circular rotating plates 6, and each stop bar 7 corresponds to a different rotating shaft 8. Each rotating shaft 8 is located between its corresponding stop bar 7 and its corresponding material distribution plate 5, and the baffle 9 on each rotating shaft 8 is in contact with and limited by the stop bar 7 corresponding to its rotating shaft 8.

[0034] A torsion spring is fitted on the rotating shaft 8. One end of the torsion spring is fixedly connected to the baffle 9, and the other end is fixedly connected to the circular rotating plate 6.

[0035] An air collecting hood 13 is fixedly and connected to the feed box 1. An air inlet 12 is opened on the feed box 1, and the air inlet 12 is connected to the air collecting hood 13 and the feed box 1.

[0036] The air collecting hood 13 is fixedly connected to the connecting pipe 14, which is connected to the pipe that introduces hot air into the drying barrel.

[0037] An air outlet 15 is provided on the feed box 1. Ventilation holes are provided on the two circular rotating plates 6, all the material distribution plates 5 and all the baffles 9.

[0038] The air inlet 12 refers to multiple air inlets arranged in a mesh pattern, and the air outlet 15 refers to multiple air outlets arranged in a mesh pattern.

[0039] It should be noted that the mixing tank in this embodiment refers to an existing tank equipped with a stirrer and used for drying plastic masterbatch. This includes, but is not limited to, the drying tank body in the plastic masterbatch drying equipment described in Publication No. CN214582234U.

[0040] Working principle: When using this device to dry plastic masterbatch, start motor 3. The output shaft of motor 3 drives the support shaft 4 to rotate, and the support shaft 4 drives the two circular rotating plates 6 and all the distributing plates 5 to rotate.

[0041] When the two circular rotating plates 6 rotate, they drive all the rotating shafts 8 to revolve synchronously around the support shaft 4. Each rotating shaft 8 drives the corresponding baffle 9 to revolve synchronously around the support shaft 4.

[0042] As the baffle 9 gradually rotates downwards towards the support shaft 4, the gravitational component of the baffle 9 gradually exceeds the elastic force of the torsion spring, causing the baffle 9 to gradually rotate closer to the stop rod 7 and eventually come into contact with it. During this process, the opening of the feeding chute is gradually opened.

[0043] As the baffle 9 gradually revolves upwards towards the support shaft 4, the gravitational component of the baffle 9 gradually becomes less than the elastic force of the torsion spring, and the baffle 9 gradually rotates away from the stop rod 7. When the baffle 9 revolves above the support shaft 4, the baffle 9 rotates into the feeding trough and abuts against the corresponding dividing plate 5. At the same time, a gap remains between the baffle 9 and the other dividing plate 5 that it abuts against, which together form the feeding trough.

[0044] During the rotation of motor 3, plastic masterbatch is added to feed box 1 through feed funnel 2. The plastic masterbatch enters the feeding trough through the gap between baffle 9 and corresponding distribution plate 5. As the support shaft 4 rotates and baffle 9 gradually opens the opening of the feeding trough, the plastic masterbatch gradually flows out of the feeding trough and flows into the drying barrel through guide plate 10.

[0045] During this process, hot air enters the feed box 1 through the connecting pipe 14, the air collecting hood 13, and the air inlet 12. The hot air is blown onto the plastic masterbatch through the vent, thus performing initial drying. The dried exhaust gas is discharged from the air outlet 15.

[0046] As the baffle 9 gradually opens the feed trough, it slows down the flow rate of the plastic masterbatch from the feed trough, allowing the plastic masterbatch to come into more full contact with the hot air during the initial drying process, thus improving the drying efficiency.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic masterbatch drying device, comprising a feed box (1) fixed on a drying drum, characterized in that: The feed box (1) is connected to the drying barrel, and the top of the feed box (1) is fixed and connected to the feed funnel (2). A horizontal support shaft (4) is rotatably installed inside the feed box (1), and the support shaft (4) is located directly below the feed funnel (2); multiple distribution plates (5) are fixedly installed on the support shaft (4), and the multiple distribution plates (5) are evenly distributed along the circumference of the support shaft (4); Two circular rotating plates (6) are fixedly sleeved on the support shaft (4), and each material distribution plate (5) is located between the two circular rotating plates (6); the two adjacent material distribution plates (5) and the two circular rotating plates (6) together form a feeding trough; Each feeding trough is equipped with a switch at its opening to control the opening and closing of the trough. The feed box (1) is fixed and connected to an air collecting hood (13), which is connected to a pipe that supplies hot air into the drying barrel through a connecting pipe (14). Ventilation holes are provided on both circular rotating plates (6) and all material distribution plates (5).

2. The plastic masterbatch drying device according to claim 1, characterized in that: The switch includes a rotating shaft (8), which is parallel to the support shaft (4) and rotatably mounted between two circular rotating plates (6) and located at the end of the material distribution plate (5) away from the support shaft (4); a baffle (9) is fixedly installed on the rotating shaft (8), and the baffle (9) is in contact with the end of the material distribution plate (5) where the rotating shaft (8) is located away from the support shaft (4) in a limiting fit.

3. The plastic masterbatch drying device according to claim 2, characterized in that: A stop bar (7) parallel to the support shaft (4) is fixedly arranged between the two circular rotating plates (6), and the rotating shaft (8) is located between the stop bar (7) and the material distribution plate (5); the stop plate (9) and the stop bar (7) are in contact and limit each other.

4. The plastic masterbatch drying device according to claim 2, characterized in that: A torsion spring is fitted on the rotating shaft (8), with one end of the torsion spring fixedly connected to the baffle (9) and the other end fixedly connected to the circular rotating plate (6).

5. A plastic masterbatch drying device according to claim 1, characterized in that: The motor (3) is fixedly installed on the feed box (1), and the output shaft of the motor (3) is coaxially and fixedly connected to the support shaft (4).

6. A plastic masterbatch drying device according to claim 1, characterized in that: The feed box (1) is provided with a discharge port (11) that communicates with the drying barrel; a guide plate (10) is fixedly installed inside the feed box (1), and the guide plate (10) is located below the support shaft (4) and inclined towards the discharge port (11).

7. A plastic masterbatch drying device according to claim 1, characterized in that: The feed box (1) is provided with an air inlet (12) and an air outlet (15); the air inlet (12) is connected to the air collector hood (13) and the feed box (1).

Images