LFT-D crushed material granulating and conveying device

Abstract

The utility model belongs to the technical field of material conveying, and particularly relates to an LFT-D crushed material granulating and conveying device which comprises a water tank, a driving conveying unit and at least one air cooling conveying unit are sequentially arranged on the water tank, the driving conveying unit comprises a driving conveying frame, a conveying belt and material strip distributing roller sets arranged at the tail end of the driving conveying frame in an up-down mode, and a first height lifter is arranged at the tail end of the driving conveying frame. The LFT-D crushed material granulation conveying device comprises a water tank, a driving conveying frame and an air cooling conveying unit, the driving conveying frame is arranged on the water tank to drive the driving conveying frame to adjust the height, the air cooling conveying unit comprises an air cooling conveying frame, a plurality of bottom material rollers arranged at the bottom of the air cooling conveying frame and an air blowing device, and the air cooling conveying frame is connected to the water tank through a height and angle adjusting assembly. The device can meet the production and processing of LFT-D crushed material modified plastics, can be transformed by utilizing existing equipment, has the advantages of flexibility, small transformation workload, good conveying and air drying effects and the like, and is suitable for large-scale popularization and application.

Description

Technical Field

[0001] The utility model belongs to the technical field of material conveying, and particularly relates to an LFT-D crushed material granulation conveying device. Background Art

[0002] The LFT-D molding process (Long-Fiber Reinforce Thermoplastic Direct) is a new long-fiber reinforced thermoplastic composite material process technology, which is a process technology for directly producing products of long-fiber reinforced thermoplastic composite materials online.

[0003] The raw materials used in LFT-D technology are thermoplastic materials. After the parts reach the end of their service life, they can be recycled and reused without causing pollution to the environment. They are environmentally friendly and recyclable.

[0004] At present, there are generally two ways to use LFT-D recycled materials. One is to add crushed materials online. In this way, due to the difference in particle size of crushed materials, it is difficult to accurately control the amount of addition when adding.

[0005] The second method is to use the crushed material after granulation. In this method, due to the granulation and batch mixing, the particle size of the crushed material is uniform and the batches are also uniform. The accuracy of the added amount can be achieved when used, and the product surface of this addition method is also better.

[0006] Water-cooled strands are one of the most commonly used methods for producing modified plastics. After plasticizing in a twin-screw extruder, the plastics are cooled in a water tank, dried in an air dryer, and pelletized in a pelletizer. The water tank is generally about 5 meters long and connected to a circulating water pool through a pipeline. The foundation must be stable and the water tank must have good load-bearing capacity.

[0007] When processing LFT-D crushed materials using a water-cooled strand production line, the current granulation and drying equipment has the following problems:

[0008] (1) The characteristics of LFT-D recycled materials are that they generally contain 30% glass fiber and a certain amount of powder filling. Therefore, the material strips are easily broken during granulation, and a conveyor belt is needed to drive the material strips forward. However, the current conveying and drying equipment is relatively complicated, and the existing water tank needs to be moved away from the production line before the conveying and drying equipment is installed, which is a large workload.

[0009] (2) Since LFT-D crushed materials are generally consumed by themselves, the current conveying and drying equipment is relatively expensive and the input-output ratio is not appropriate.

[0010] (3) The LFT-D material matrix is ​​generally a high-flow material. After being crushed and processed into granules, the material strips need to be cooled with cold water when they exit the die, otherwise it will be difficult to process smoothly. The current conveying and drying equipment does not meet the use requirements. Generally, it does not have a water tank. The installation of a water tank is more troublesome and the workload is also larger.

[0011] (4) Due to different formulas, glass fiber content and powder filling amount of LFT-D materials, the drawing process needs to be adjusted for different crushed materials, including the immersion distance, the spacing and number of fans, so as to achieve effective cooling and drying processing.

[0012] The existing conveying and drying equipment is not very applicable. It is best to use the existing equipment to develop a granulation conveying powder drying equipment suitable for LFT-D crushed materials, that is, to transform a conveying device is our research and development direction. Utility Model Content

[0013] The utility model provides an LFT-D crushed material granulation conveying device, which can solve the problems pointed out in the background technology.

[0014] A LFT-D crushed material granulation conveying device comprises a water trough; an active conveying unit and at least one air-cooled conveying unit are sequentially arranged on the water trough, the active conveying unit comprises an active conveying frame, a transmission belt, and a material strip diversion roller group arranged up and down at the end of the active conveying frame, a first height lifter is arranged at the end of the active conveying frame to drive the active conveying frame to adjust the height, the air-cooled conveying unit comprises an air-cooled conveying frame, a plurality of bottom material rollers arranged at the bottom of the air-cooled conveying frame, and a blowing device, and the air-cooled conveying frame is connected to the water trough through a height and angle adjustment component.

[0015] Preferably, the strip diverter roller group includes a smooth roller and a diverter roller.

[0016] Preferably, the first height lifter is a telescopic lifter, the lower end of which is fixed to the water tank through a first base, and the upper end is hingedly connected to the active conveying frame.

[0017] Preferably, the blowing device comprises an air pipe and an air outlet.

[0018] Preferably, the height and angle adjustment assembly includes a second height lifter and an angle adjustment plate, the second height lifter is connected to the water tank via a second base, the upper end of the second height lifter is hingedly connected to the angle adjustment plate, and the angle adjustment plate is connected to the air-cooled conveyor rack.

[0019] Preferably, the second height lifter is a telescopic lifter.

[0020] Beneficial effects: The utility model provides an LFT-D crushed material granulation and conveying device, which can meet the production and processing of LFT-D crushed material modified plastics, can be modified using existing equipment, has the advantages of flexibility, small modification workload, good conveying and air-drying effects, etc., and is suitable for large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle,

[0023] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the figure is as follows:

[0024] Description of reference numerals:

[0025] Numbers in the figure: water tank 1; active conveying unit 2; active conveying frame 21; transmission belt 22; material strip diverter roller group 23; smooth roller 231; diverter roller 232; first height lifter 24; first base 25; existing base frame 26; air-cooled conveying unit 3; air-cooled conveying frame 31; bottom material roller 32; blowing device 33; air pipe 331; air outlet end 332; second height lifter 34; angle adjustment plate 35; second base 36. DETAILED DESCRIPTION

[0026] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0027] Implementation example Figure 1-3 As shown, an LFT-D crushed material granulation conveying device provided by an embodiment of the utility model includes a water tank 1; the water tank 1 is an existing water tank, which can be modified based on it, and an active conveying unit 2 and at least one air-cooled conveying unit 3 are sequentially arranged on the water tank 1, and the active conveying unit 2 includes an active conveying frame 21, a transmission belt 22, and a material strip diversion roller group 23 arranged up and down at the end of the active conveying frame 21, and the transmission belt 22 is a powered conveyor belt, and the belt body is polyester fiber, which can drive the rough surface of the material strip to climb and move forward, and the material strip diversion roller group 23 includes a smooth roller 231 and a diversion roller group 232. Roller 232, this structure can ensure that the material strips are conveyed forward separately, and solve the problem of uneven pelletizing caused by slipping of the rear-end pelletizer. A first height lifter 24 is provided at the end of the active conveying frame 21 to drive the active conveying frame 21 to adjust the height. The front end of the active conveying frame 21 can be movably connected to the water tank 1 through the existing base frame 26. The front end is movably connected and can cooperate with the first height lifter 24 for lifting. The first height lifter 24 is a telescopic lifter. The telescopic lifter can select a multi-stage telescopic lifter. The lower end is fixed to the water tank 1 through the first base 25, and the upper end is hingedly connected to the active conveying frame 21.

[0028] The air-cooled conveying unit 3 includes an air-cooled conveying frame 31, a plurality of bottom material rollers 32 arranged at the bottom of the air-cooled conveying frame 31, and a blowing device 33. The air-cooled conveying frame 31 is connected to the water tank 1 through a height and angle adjustment component. The blowing device 33 plays a role in air-drying or cooling the material strips. The blowing device 33 includes an air pipe 331 and an air outlet end 332. The height and angle adjustment component includes a second height lifter 34 and an angle adjustment disk 35. The second height lifter 34 is connected to the water tank 1 through a second base 36, and its upper end is hingedly connected to the angle adjustment disk 35. The angle adjustment disk 35 is connected to the air-cooled conveying frame 31. The second height lifter 34 is a telescopic lifter, which can be an aluminum profile telescopic lifter.

[0029] Production steps of the utility model:

[0030] 1. Turn on the processing equipment. The LFT-D crushed material is plasticized by the twin-screw extruder and cooled by the existing water tank after exiting the die.

[0031] 2. The material strips pass through the active conveying unit 2. Since the unit enables the material strips to have a lifting angle and height, part of the water in the material strips can be drained out. The water immersion height of the material strips can be set by the fixed position of the existing base frame 26 at the front end, and the lifting height is adjusted by the first height lifter 24 of the base, which is suitable for production with different formula processes.

[0032] 3. The material strips are transported to the conveying air cooling unit 3 through the active conveying unit 2. The conveying air cooling unit 3 can be 2-3 groups, which can be set according to the length requirements of different formula processes. The height between the conveying air cooling units 3 and the active conveying unit 2 are adjusted and adapted through their respective height lifters, and the height and inclination settings can increase the conveying distance of the material strips, which in turn increases the length of the production line, that is, under the same length, the cooling effect is better. The material strips move forward on the bottom material roller 32 at the bottom of the conveying air cooling unit 3, which can have a cooling effect and reduce the forward resistance of the material strips. The material of the bottom material roller 32 is wear-resistant nylon.

[0033] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A LFT-D crushed material granulation conveying device, comprising a water tank (1); characterized in that: An active conveying unit (2) and at least one air-cooled conveying unit (3) are sequentially arranged on the water tank (1); the active conveying unit (2) comprises an active conveying frame (21), a transmission belt (22), and a material strip diversion roller group (23) arranged at the upper and lower ends of the active conveying frame (21); a first height lifter (24) is arranged at the end of the active conveying frame (21) to drive the active conveying frame (21) to adjust its height; the air-cooled conveying unit (3) comprises an air-cooled conveying frame (31), a plurality of bottom material rollers (32) arranged at the bottom of the air-cooled conveying frame (31), and an air blowing device (33); the air-cooled conveying frame (31) is connected to the water tank (1) via a height and angle adjustment component.

2. The LFT-D crushed material granulation conveying device according to claim 1, characterized in that: The strip diverter roller group (23) comprises a smooth roller (231) and a diverter roller (232).

3. The LFT-D crushed material granulation conveying device according to claim 2 is characterized in that: The first height lifter (24) is a telescopic lifter, the lower end of which is fixed to the water tank (1) via a first base (25), and the upper end of which is hingedly connected to the active conveying frame (21).

4. The LFT-D crushed material granulation conveying device according to claim 1, characterized in that: The blowing device (33) comprises an air pipe (331) and an air outlet (332).

5. The LFT-D crushed material granulation conveying device according to claim 2, characterized in that: The height and angle adjustment assembly comprises a second height lifter (34) and an angle adjustment disk (35); the second height lifter (34) is connected to the water tank (1) via a second base (36); the upper end of the second height lifter (34) is hingedly connected to the angle adjustment disk (35); and the angle adjustment disk (35) is connected to the air-cooled conveying rack (31).

6. The LFT-D crushed material granulation conveying device according to claim 5, characterized in that: The second height lifter (34) is a telescopic lifter.

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