Material guiding device of plastic processing extruder

Abstract

The utility model provides a plastic processing extruder material guiding device which comprises a discharging box body, the middle end of an inner cavity of the discharging box body is fixedly connected with a partition plate, a cooling mechanism is arranged on the right side of the top of the discharging box body, and the cooling mechanism comprises a cooling water tank, a water inlet pipe, a water suction pump, an S-shaped water pipe and an electromagnetic valve. By arranging the cooling mechanism, materials in an inner cavity of the discharging box body can be cooled, used cooling water can be recycled, waste of water resources is avoided, meanwhile, the cooling water can be prevented from being in direct contact with the materials, the cooling water can be prevented from covering the outer surfaces of the materials, and the service life of the materials is prolonged. And by arranging the conveying mechanism, the materials can be conveyed in the inner cavity of the discharging box body, and the situation that after the extruder is shut down, the materials lose extrusion force, and consequently the materials stay in the inner cavity of the discharging box body, and waste of the materials is caused is avoided.

Description

Technical Field

[0001] The utility model relates to a material guiding device for a plastic processing extruder, belonging to the technical field of extruders. Background Art

[0002] An extruder is one type of plastic machinery, originating in the 18th century. According to the included angle between the material flow direction of the die head and the center line of the screw, the die head can be divided into a right-angle die head, an oblique-angle die head, etc. A screw extruder relies on the pressure and shear force generated by the rotation of the screw to enable the material to be fully plasticized and evenly mixed. Plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and rarely seen multi-screw extruders and screwless extruders.

[0003] Chinese Patent (Publication No.: CN 220534895 U) discloses a material guiding device for a plastic processing extruder, including a discharge box body, a ventilation box, and a main water pipe. The top and bottom of the discharge box body are both fixed with ventilation boxes by bolts. Inside the ventilation box, exhaust fans are equidistantly installed through mounting frames. One end of the top of the discharge box body is installed with a main water pipe through a mounting frame. The bottom of the main water pipe is equidistantly connected with nozzles through pipes. One end of the bottom of the discharge box body is fixed with a water collecting cover by bolts;

[0004] This utility model accelerates the gas flow in the discharge box body through multiple exhaust fans to cool the material extruded by the extruder, and then opens the valve to make clear water spray out through the nozzles to cool the cooled material. First, it cools down by air cooling, and then cools by water cooling, so that the material will not crack or break due to a large temperature difference. However, there are two drawbacks in the way of using water cooling to cool the material in this patent: First, it is easy to cause waste of water resources. Second, directly using cold water to cool the material will cause a large amount of water to adhere to the surface of the material, which has a certain impact on subsequent processing; and there is a lack of a device capable of supporting the material in this patent. The material moves to the right under the extrusion force of the extruder, but when all the material is extruded by the extruder, there will still be a part of the material staying inside the discharge box body and unable to move by itself.

[0005] Therefore, a material guiding device for a plastic processing extruder is proposed. Summary of the Utility Model

[0006] In view of this, the utility model provides a material guiding device for a plastic processing extruder to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the present utility model is realized as follows: A material guiding device for a plastic processing extruder, including a discharge box body, a partition plate is fixedly connected to the middle end of the inner cavity of the discharge box body, a cooling mechanism is arranged on the right side of the top of the discharge box body, the cooling mechanism includes a cooling water tank, a water inlet pipe, a water pump, an S-shaped water pipe and a solenoid valve, a conveying mechanism is arranged on the front side of the discharge box body, and the conveying mechanism includes a servo motor.

[0008] Further preferably, the cooling water tank is fixedly connected to the right side of the top of the discharge box body, the water inlet pipe is arranged on the top of the cooling water tank, and the top of the cooling water tank is communicated with the bottom of the water inlet pipe, the water pump is arranged on the left side of the bottom of the inner cavity of the cooling water tank, the S-shaped water pipe is arranged on the right side of the inner cavity of the discharge box body, and the top of the left side of the S-shaped water pipe penetrates through the top of the discharge box body and the bottom of the cooling water tank and is communicated with the output end of the water pump, the top of the right side of the S-shaped water pipe penetrates through the right side of the discharge box body and the right side of the cooling water tank and is communicated with the right side of the cooling water tank, and the solenoid valve is arranged on the outer surface of the top of the right side of the S-shaped water pipe.

[0009] Further preferably, the servo motor is arranged on the front side of the discharge box body, two groups of belt pulleys are arranged on the front side of the discharge box body, and the output end of the servo motor is rotationally connected to the front side of the belt pulley located on the left side. A connecting belt is arranged between the two groups of belt pulleys. The back sides of the two groups of belt pulleys are rotationally connected with driving rollers through rotating shafts, multiple driven rollers are arranged on the right sides of the driving rollers, and conveyor belts are arranged on the outer surfaces of each group of driving rollers and driven rollers.

[0010] Further preferably, square grooves are formed in both the top and the bottom of the discharge box body, and filter nets are fixedly connected to the inner sides of the square grooves.

[0011] Further preferably, connecting plates are fixedly connected to both the upper and lower sides of the inner cavity of the discharge box body. Multiple ventilation holes with equal spacing and the same size are formed in the outer surfaces of the connecting plates, and multiple groups of exhaust fans with equal spacing and the same size are arranged on the outer sides of the connecting plates.

[0012] Further preferably, a plurality of fixing blocks are sleeved on the outer surface of the S-shaped water pipe, and the back sides of the fixing blocks are fixedly connected to the back side of the inner cavity of the discharge box body.

[0013] Further preferably, a mounting plate is fixedly connected to the left side of the discharge box body, and bolt holes are formed in the four peripheries of the mounting plate.

[0014] Due to the adoption of the above technical solutions in the embodiments of the present utility model, it has the following advantages:

[0015] 1. The utility model can cool the materials in the inner cavity of the discharge box by setting a cooling mechanism, and the used cooling water can be recycled, avoiding the waste of water resources. At the same time, it can also prevent the direct contact between the cooling water and the materials, preventing the cooling water from covering the outer surface of the materials and affecting the subsequent processing procedures of the materials.

[0016] 2. The utility model can convey the materials in the inner cavity of the discharge box by setting a conveying mechanism, avoiding the waste of materials caused by the materials staying in the inner cavity of the discharge box due to the loss of extrusion pressure when the extruder is turned off.

[0017] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments and features, further aspects, embodiments and features of the utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Front view structural schematic diagram of the main body of the utility model;

[0020] Figure 2 Cross-sectional structural schematic diagram of the discharge box of the utility model;

[0021] Figure 3 Explosion diagram of the filter screen and the square groove of the utility model;

[0022] Figure 4 Cross-sectional structural schematic diagram of the cooling water tank of the utility model;

[0023] Figure 5 Structural schematic diagram of the conveying mechanism of the utility model in a disassembled state.

[0024] Reference numerals: 1, discharge box; 2, mounting plate; 3, partition plate; 4, cooling mechanism; 401, cooling water tank; 402, water inlet pipe; 403, water pump; 404, S-shaped water pipe; 405, solenoid valve; 5, conveying mechanism; 501, servo motor; 502, pulley; 503, connecting belt; 504, driving roller; 505, driven roller; 506, conveyor belt; 6, square groove; 7, filter screen; 8, connecting plate; 9, ventilation hole; 10, exhaust fan; 11, fixing block; 12, bolt hole. Detailed implementation manners

[0025] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0026] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0027] Embodiment 1

[0028] As Figures 1-5 shown, the embodiment of the present utility model provides a material guiding device for a plastic processing extruder, which includes a discharge box body 1. A partition plate 3 is fixedly connected to the middle end of the inner cavity of the discharge box body 1. A cooling mechanism 4 is arranged on the right side of the top of the discharge box body 1. The cooling mechanism 4 includes a cooling water tank 401, a water inlet pipe 402, a water pump 403, an S-shaped water pipe 404 and a solenoid valve 405. A conveying mechanism 5 is arranged on the front side of the discharge box body 1. The conveying mechanism 5 includes a servo motor 501. The cooling water tank 401 is fixedly connected to the right side of the top of the discharge box body 1. The water inlet pipe 402 is arranged on the top of the cooling water tank 401, and the top of the cooling water tank 401 is communicated with the bottom of the water inlet pipe 402. The water pump 403 is arranged on the left side of the bottom inner cavity of the cooling water tank 401. The S-shaped water pipe 404 is arranged on the right side of the inner cavity of the discharge box body 1. The top of the left side of the S-shaped water pipe 404 penetrates through the top of the discharge box body 1 and the bottom of the cooling water tank 401 and is communicated with the output end of the water pump 403. The top of the right side of the S-shaped water pipe 404 penetrates through the right side of the discharge box body 1 and the right side of the cooling water tank 401 and is communicated with the right side of the cooling water tank 401. The solenoid valve 405 is arranged on the outer surface of the top of the right side of the S-shaped water pipe 404. The servo motor 501 is arranged on the front side of the discharge box body 1. Two groups of belt pulleys 502 are arranged on the front side of the discharge box body 1, and the output end of the servo motor 501 is rotationally connected to the front side of the belt pulley 502 located on the left side. A connecting belt 503 is arranged between the two groups of belt pulleys 502. The back sides of the two groups of belt pulleys 502 are rotationally connected to driving rollers 504 through rotating shafts. A plurality of driven rollers 505 are arranged on the right sides of the driving rollers 504. A conveyor belt 506 is arranged on the outer surfaces of each group of driving rollers 504 and driven rollers 505.

[0029] By setting up the cooling mechanism 4, the materials in the inner cavity of the discharge box body 1 can be cooled, and the cooling water used can also be recycled to avoid waste of water resources. At the same time, it can also prevent the direct contact between the cooling water and the materials, causing the cooling water to cover the outer surface of the materials and affecting the subsequent processing procedures of the materials. By setting up the conveying mechanism 5, the materials can be conveyed in the inner cavity of the discharge box body 1, avoiding the situation that when the extruder is turned off, the materials lose the extrusion pressure and stay in the inner cavity of the discharge box body 1, resulting in waste of materials.

[0030] Embodiment 2

[0031] In one embodiment, square grooves 6 are provided at both the top and bottom of the discharge box body 1. A filter screen 7 is fixedly connected to the inner side of the square groove 6. Connecting plates 8 are fixedly connected to both the upper and lower sides of the inner cavity of the discharge box body 1. A plurality of equally spaced and identically sized ventilation holes 9 are provided on the outer surfaces of the connecting plates 8. A plurality of groups of equally spaced and identically sized exhaust fans 10 are arranged on the outer sides of the connecting plates 8. A plurality of fixing blocks 11 are sleeved on the outer surface of the S-shaped water pipe 404, and the back sides of the fixing blocks 11 are fixedly connected to the back side of the inner cavity of the discharge box body 1. An installation plate 2 is fixedly connected to the left side of the discharge box body 1. Bolt holes 12 are provided around the installation plate 2.

[0032] By setting up the square grooves 6 and the filter screen 7, it is possible to prevent external dust from entering the inner cavity of the discharge box body 1 and thus contaminating the materials. By setting up the connecting plates 8, the ventilation holes 9 and the exhaust fans 10, it can play a role in ventilation and heat dissipation. By setting up the fixing blocks 11, it can fix the S-shaped water pipe 404 to prevent the S-shaped water pipe 404 from falling. By setting up the installation plate 2 and the bolt holes 12, the discharge box body 1 can be easily connected to the discharge port of the external extruder.

[0033] When the utility model works: First, when it is necessary to guide the material extruded by the extruder, the mounting plate 2 can be first connected to the discharge port of the external extruder through the bolt holes 12 and a plurality of bolts. At this time, the servo motor 501 is started. The output end of the servo motor 501 rotates to drive the pulley 502 on the left side to rotate. The pulley 502 on the left side drives the pulley 502 on the right side to rotate synchronously through the connecting belt 503. The rotation of the two groups of pulleys 502 drives the two groups of driving rollers 504 to rotate. The driving rollers 504 drive other driven rollers 505 to rotate synchronously through the conveyor belt 506, so that the material can move from left to right in the inner cavity of the discharge box body 1. During the movement of the material, the exhaust fan 10 is started to cool the material by air. Before the material enters the right side of the inner cavity of the discharge box body 1, the cooling water is first poured into the inner cavity of the cooling water tank 401 through the water inlet pipe 402, and the output end of the water pump 403 generates suction to suck the cooling water into the S-shaped water pipe 404. When the material enters the right side of the inner cavity of the discharge box body 1, the temperature of the S-shaped water pipe 404 and the right side of the inner cavity of the discharge box body 1 is reduced by the cooling water, so that the material can be cooled. When the temperature of the cooling water in the S-shaped water pipe 404 is not low enough, the solenoid valve 405 can be opened to make the water flow back into the cooling water tank 401 again, and new cooling water is replaced and enters the inner cavity of the S-shaped water pipe 404 to continue cooling.

[0034] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions thereof, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A material guiding device for a plastic processing extruder, characterized in that: It includes a discharge box body (1). A partition plate (3) is fixedly connected to the middle end of the inner cavity of the discharge box body (1). A cooling mechanism (4) is arranged on the right side of the top of the discharge box body (1). The cooling mechanism (4) includes a cooling water tank (401), a water inlet pipe (402), a water pump (403), an S-shaped water pipe (404) and an electromagnetic valve (405). A conveying mechanism (5) is arranged on the front side of the discharge box body (1), and the conveying mechanism (5) includes a servo motor (501).

2. The feeding device of a plastic processing extruder according to claim 1, wherein: The cooling water tank (401) is fixedly connected to the right side of the top of the discharge box body (1). The water inlet pipe (402) is arranged on the top of the cooling water tank (401), and the top of the cooling water tank (401) is communicated with the bottom of the water inlet pipe (402). The water pump (403) is arranged on the left side of the bottom inside the cooling water tank (401). The S-shaped water pipe (404) is arranged on the right side of the inner cavity of the discharge box body (1). The top on the left side of the S-shaped water pipe (404) penetrates through the top of the discharge box body (1) and the bottom of the cooling water tank (401) and is communicated with the output end of the water pump (403). The top on the right side of the S-shaped water pipe (404) penetrates through the right side of the discharge box body (1) and the right side of the cooling water tank (401) and is communicated with the right side of the cooling water tank (401). The electromagnetic valve (405) is arranged on the outer surface of the top on the right side of the S-shaped water pipe (404).

3. The guiding device for a plastic processing extruder according to claim 1, characterized in that: The servo motor (501) is arranged on the front side of the discharge box body (1). Two sets of belt pulleys (502) are arranged on the front side of the discharge box body (1), and the output end of the servo motor (501) is rotationally connected to the front side of the belt pulley (502) on the left. A connecting belt (503) is arranged between the two sets of belt pulleys (502). The back sides of the two sets of belt pulleys (502) are rotationally connected with driving rollers (504) through rotating shafts. Multiple driven rollers (505) are arranged on the right side of each driving roller (504). A conveyor belt (506) is arranged on the outer surface of each set of driving roller (504) and driven roller (505).

4. A material guiding device for a plastic processing extruder according to claim 1, characterized in that: Square grooves (6) are formed in both the top and bottom of the discharge box body (1), and filter nets (7) are fixedly connected to the inner sides of the square grooves (6).

5. The feeding device of a plastic processing extruder according to claim 1, characterized in that: Connecting plates (8) are fixedly connected to both the upper and lower sides of the inner cavity of the discharge box body (1). A plurality of ventilation holes (9) which are equally distributed and have the same size are formed in the outer surfaces of the connecting plates (8). Multiple sets of exhaust fans (10) which are equally distributed and have the same size are arranged on the outer sides of the connecting plates (8).

6. The feeding device of a plastic processing extruder according to claim 2, wherein: A plurality of fixing blocks (11) are sleeved on the outer surface of the S-shaped water pipe (404), and the back sides of the fixing blocks (11) are fixedly connected to the back side of the inner cavity of the discharge box body (1).

7. A material guiding device for a plastic processing extruder according to claim 1, characterized in that: An installation plate (2) is fixedly connected to the left side of the discharge box body (1), and bolt holes (12) are formed around the installation plate (2).

Images