Auxiliary device of extruder

Abstract

The utility model discloses an auxiliary device of an extruder, which comprises an extruder main body, two support frames are arranged on one side of the extruder main body, a conveyor belt is arranged on the inner side of each support frame, and auxiliary devices are arranged on the support frames. The auxiliary device comprises a mounting frame, two crushing rollers, two extrusion rollers, a cooling fan, a driving mechanism I and a driving mechanism II, and solves the problems that in the molding powder manufacturing process, a pasty mixture is discharged from an extruder, the mixture carries a large amount of heat during extrusion, the mixture which is not completely cooled needs to be poured into a tablet press to be subjected to tablet pressing treatment, and the production efficiency is high. However, a mixture sheet discharged at the moment still has heat, cannot be pulverized immediately and needs to be cooled, if the mixture sheet is not cooled, the hardness of the mixture sheet is not enough, the mixture sheet cannot be pulverized thoroughly, but natural cooling consumes long time, the production efficiency of a factory is low, and a mixture produced by an extruder is high in heat. And when the mixture is poured into the tablet press, workers are easily injured.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, and particularly relates to an auxiliary device for an extruder. Background Art

[0002] Plastic powder is the material for the powder coating process. The conventional plastic powder processing process includes raw material mixing, extrusion by an extruder into a molten state, processing by a tablet press into sheets, rolling into small particles after cooling, rolling into powder by a pulverizer, and sieving powders of different mesh numbers by a sieve machine.

[0003] However, in the existing plastic powder production process, the raw materials coming out of the extruder are a paste-like mixture. This mixture will carry a large amount of heat during extrusion. At this time, the still not fully cooled mixture needs to be poured into the tablet press for tablet pressing. However, the mixture tablets coming out at this time still carry heat and cannot be immediately crushed. Cooling is required. If not cooled, the hardness of the mixture tablets will not be enough to be completely crushed, but natural cooling takes a long time, resulting in low production efficiency of the factory. Moreover, the heat of the mixture produced by the extruder is relatively large, and it is also easy to cause injury to workers when pouring the mixture into the tablet press. Summary of the Utility Model

[0004] This application provides an auxiliary device for an extruder, which can solve the problems that the mixture produced by the extruder has a large amount of heat, resulting in a slow cooling speed and being easy to cause injury to workers when pouring the mixture into the tablet press.

[0005] In this application, an auxiliary device for an extruder is provided, including an extruder main body. There are two support frames arranged on one side of the extruder main body. A conveyor belt is installed inside each support frame. An auxiliary device is installed on the support frame. The auxiliary device includes a mounting frame, two crushing rollers, two extrusion rollers, a cooling fan, and drive mechanism one and drive mechanism two. The mounting frame is in a concave shape. A plurality of the mounting frames are installed on the two support frames. The cooling fan is detachably connected and installed on the mounting frame. The drive mechanism one is installed on the support frame, and the extrusion roller is connected to the drive mechanism one. The drive mechanism two is installed on the support frame. One of the crushing rollers is connected to the drive mechanism two, and the other crushing roller is connected to the support frame.

[0006] Further, a plurality of mounting holes are provided on the mounting frame. The cooling fan is matched with the mounting holes. An energizing rod is installed on the cooling fan. A receiving groove corresponding to the energizing rod is provided on the mounting hole. A contact head is installed at the bottom of the receiving groove.

[0007] Further, grooves one are provided on both sides of the mounting hole. Grooves two are provided on both sides of the cooling fan.

[0008] Further, a detachable lid is installed on the mounting hole, and a handle is fixedly connected to the lid.

[0009] Further, the first driving mechanism includes a first gear, a second gear, a first bracket, and a first motor. The two extrusion rollers are horizontally arranged. Brackets are arranged on both sides of the extrusion rollers, and the extrusion rollers are rotatably connected to the brackets. The brackets are fixedly connected to the support frame. The first gear and the second gear are respectively fixedly connected to one of the extrusion rollers, and the first gear meshes with the second gear. The output shaft of the first motor is fixedly connected to the first gear, and the first motor is installed on the first bracket.

[0010] Further, the second driving mechanism includes a third gear, a fourth gear, a second bracket, and a second motor. The two crushing rollers are vertically arranged. The second bracket is fixedly connected to the support frame. One of the crushing rollers is rotatably connected to the second bracket, and the other crushing roller is rotatably connected to the support frame. The third gear is fixedly connected to the crushing roller on the second bracket, and the fourth gear is fixedly connected to the crushing roller on the support frame. The third gear meshes with the fourth gear. The output shaft of the second motor is fixedly connected to the third gear, and the second motor is installed on the second bracket.

[0011] In summary, in this application, an auxiliary device for an extruder has the beneficial effects of fast heat dissipation speed, increased factory efficiency, and no need to transfer the mixture, eliminating the easy damage of workers during the transfer of the mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a perspective view of the utility model;

[0013] Figure 2 is a top view of the utility model;

[0014] Figure 3 is a schematic structural view of the mounting frame of the utility model;

[0015] Figure 4 is a top view of the structural view of the mounting frame of the utility model;

[0016] Figure 5 is Figure 4 a cross-sectional view taken along line BB in

[0017] Figure 6 is Figure 3 a partial enlarged view at A in

[0018] Figure 7 is Figure 5 a partial enlarged view at C in

[0019] Reference numerals: 1, main body of the extruder; 2, support frame; 3, conveyor belt; 4, auxiliary device; 401, mounting frame; 402, crushing roller; 403, extrusion roller; 404, cooling fan; 405, drive mechanism I; 406, drive mechanism II; 5, mounting hole; 6, energizing rod; 7, receiving groove; 8, contact head; 9, first groove; 10, second groove; 11, lid; 12, cylinder; 13, first gear; 14, second gear; 15, first bracket; 16, first motor; 17, third gear; 18, fourth gear; 19, second bracket; 20, second motor. Detailed implementation mode

[0020] The following is only the preferred implementation mode of the present utility model, and the protection scope is not limited to this embodiment. All technical solutions within the idea of the present utility model should belong to the protection scope of the present utility model. At the same time, it should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and retouches should also be regarded as the protection scope of the present utility model.

[0021] As Figures 1 to 7 shown, an auxiliary device for an extruder includes a main body 1 of the extruder. On one side of the main body 1 of the extruder, two support frames 2 are provided. The center of the distance between the two support frames 2 is on the same horizontal line as the center of the discharge port of the extruder. Inside each support frame 2, a conveyor belt 3 is installed, and an auxiliary device 4 is installed on the support frame 2.

[0022] The auxiliary device 4 includes a mounting frame 401, two crushing rollers 402, two extrusion rollers 403, a cooling fan 404, a drive mechanism I 405 and a drive mechanism II 406. A number of mounting frames 401 are provided on the support frame 2. The mounting frame 401 is fixedly connected above the two support frames 2, and the mounting frame 401 is in a concave shape. The two sides of the concave shape are respectively fixed to one support frame 2. A number of cooling fans 404 are installed on the mounting frame 401, and the cooling fans 404 are detachably connected to the mounting frame 401. A drive mechanism I 405 is provided at the right end of the rightmost mounting frame 401. The drive mechanism I 405 is installed on the support frame 2, and two extrusion rollers 403 are installed on the drive mechanism I 405. A drive mechanism II 406 is provided at the left end of the leftmost mounting frame 401. The two extrusion rollers 403 are located directly below the discharge port of the extruder. The drive mechanism II 406 is installed on the support frame 2. One crushing roller 402 is installed on the drive mechanism II 406, and the other crushing roller 402 is rotatably connected to the support frame 2. The top of the crushing roller 402 rotatably connected to the support frame 2 is lower than the top of the conveyor belt 3.

[0023] Further, a number of mounting holes 5 are provided on the mounting bracket 401. The mounting holes 5 correspond to the heat dissipation fans 404. The heat dissipation fans 404 are installed in the mounting holes 5. A power conduction rod 6 is fixed on each side of the heat dissipation fan 404. A receiving groove 7 that matches the power conduction rod 6 is provided on the mounting hole 5. A contact point is fixedly connected to the bottom of the receiving groove 7. A circuit is provided inside the mounting bracket 401 to supply power to the heat dissipation fan 404. When the power conduction rod 6 on the heat dissipation fan 404 contacts the contact point inside the mounting bracket 401, the mounting bracket 401 can supply power to the heat dissipation fan 404. The setting of the circuit is prior art and will not be elaborated here. A cover 11 is also provided on the mounting hole 5. A handle is fixedly connected to the cover 11. The number of heat dissipation fans 404 can be installed according to actual needs, and the redundant mounting holes 5 can be covered by the cover 11 to prevent excessive dust from falling into the mixture through the mounting holes 5.

[0024] Further, a first groove 9 is provided on each side of the mounting hole 5, and a second groove 10 is provided on each side of the heat dissipation fan 404. The second groove 10 and the power conduction rod 6 are staggered from each other. When installing the heat dissipation fan 404, align the side with the second groove 10 with the side of the first groove 9 and insert it. The first groove 9 and the second groove 10 provide a position for leverage when disassembling the heat dissipation fan 404, facilitating the removal of the heat dissipation fan 404.

[0025] Further, a number of cylinders 12 are fixedly connected to the conveyor belt 3. The cylinders 12 are arranged around the conveyor belt 3, and the intervals between the cylinders 12 are equal. This enables the just-extruded and formed mixture to dissipate heat better.

[0026] The first driving mechanism 405 includes a first gear 13, a second gear 14, a first bracket 15, and a first motor 16. A first bracket 15 is fixedly connected to the upper ends of the two support frames 2, and the rightmost end of the first bracket 15 is flush with the rightmost end of the support frame 2. The two extrusion rollers 403 are arranged between the first brackets 15, and the extrusion rollers 403 are rotatably connected to the first brackets 15. The two extrusion rollers 403 are arranged horizontally. The first gear 13 and the second gear 14 are respectively fixed on one extrusion roller 403. The first gear 13 and the second gear 14 mesh with each other. The output shaft of the first motor 16 is fixedly connected to the first gear 13, and the first motor 16 is installed on the first bracket 15. The first motor 16 drives the first gear 13 to rotate, and the first gear 13 drives the second gear 14 to rotate, causing the two extrusion rollers 403 to rotate in opposite directions simultaneously.

[0027] The second driving mechanism 406 includes a third gear 17, a fourth gear 18, a second bracket 19 and a second motor 20. A second bracket 19 is fixedly connected to the upper ends of the two support frames 2 respectively, and the leftmost end of the second bracket 19 is flush with the leftmost end of the support frame 2. A crushing roller 402 is arranged between the two second brackets 19 and is rotatably connected to the second bracket 19. Another crushing roller 402 is rotatably connected to the support frame 2. The two crushing rollers 402 are vertically arranged, and the topmost end of the crushing roller 402 rotatably connected to the support frame 2 is lower than the topmost end of the conveyor belt 3, so as to ensure that the mixture pressed into sheets can enter the two crushing rollers 402. The third gear 17 is fixedly connected to the crushing roller 402 on the second bracket 19, the fourth gear 18 is fixedly connected to the crushing roller 402 on the support frame 2, the third gear 17 meshes with the fourth gear 18, the output shaft of the second motor 20 is fixedly connected to the third gear 17, and the second motor 20 is installed on the second bracket 19. The second motor 20 drives the third gear 17 to rotate, and the third gear 17 drives the fourth gear 18 to rotate, so that the two crushing rollers 402 rotate in opposite directions simultaneously.

[0028] Working principle of the utility model: When the extruder extrudes the mixture, it will directly fall on the two extrusion rollers 403 below the discharge port of the extruder. The two extrusion rollers 403 directly extrude the mixture into a sheet, which eliminates the need for workers to transfer the hot mixture to the tablet press and directly solves the problem that workers are easily injured during the transfer process. Then, the mixture pressed into sheets will fall on the conveyor belt 3 formed by a number of cylinders 12. Driven by the conveyor belt 3 and passing through a number of cooling fans 404, the sheet-like mixture can be quickly cooled and hardened, and finally, the two crushing rollers 402 crush the sheet-like mixture.

Claims

1. An auxiliary device for an extruder, comprising an extruder main body (1), two support frames (2) are arranged on one side of the extruder main body (1), a conveyor belt (3) is installed on the inner side of each support frame (2), and an auxiliary device (4) is installed on the support frame (2), characterized in that, The auxiliary device (4) includes a mounting frame (401), two crushing rollers (402), two extrusion rollers (403), a cooling fan (404), a first driving mechanism (405) and a second driving mechanism (406). The mounting frame (401) is in a concave shape, and a plurality of the mounting frames (401) are mounted on two support frames (2). The cooling fan (404) is detachably connected and mounted on the mounting frame (401). The first driving mechanism (405) is mounted on the support frame (2), and the extrusion roller (403) is connected to the first driving mechanism (405). The second driving mechanism (406) is mounted on the support frame (2), one of the crushing rollers (402) is connected to the second driving mechanism (406), and the other crushing roller (402) is connected to the support frame (2).

2. The auxiliary device of an extruder according to claim 1, wherein A plurality of mounting holes (5) are formed in the mounting frame (401). The cooling fan (404) is matched with the mounting holes (5). An energizing rod (6) is mounted on the cooling fan (404). A receiving groove (7) corresponding to the energizing rod (6) is formed in the mounting hole (5), and a contact head (8) is mounted at the bottom of the receiving groove (7).

3. The auxiliary device of an extruder according to claim 2, characterized in that, Grooves one (9) are formed on both sides of the mounting hole (5), and grooves two (10) are formed on both sides of the cooling fan (404).

4. An auxiliary device for an extruder according to claim 3, characterized in that, A detachable cover (11) is mounted on the mounting hole (5), and a handle is fixedly connected to the cover (11).

5. An auxiliary device for an extruder according to claim 1, characterized in that, A plurality of cylinders (12) are mounted on the conveyor belt (3), and the intervals between every two cylinders (12) are equal.

6. The auxiliary device of an extruder according to claim 1, characterized in that, The first driving mechanism (405) includes a first gear (13), a second gear (14), a first bracket (15) and a first motor (16). The two extrusion rollers (403) are arranged horizontally. Brackets one (15) are arranged on both sides of the extrusion roller (403), and the extrusion roller (403) is rotatably connected to the brackets one (15). The brackets one (15) are fixedly connected to the support frame (2). The first gear (13) and the second gear (14) are respectively fixedly connected to one of the extrusion rollers (403). The first gear (13) meshes with the second gear (14). The output shaft of the first motor (16) is fixedly connected to the first gear (13), and the first motor (16) is mounted on the brackets one (15).

7. The auxiliary device of an extruder according to claim 1, characterized in that, The second driving mechanism (406) includes a third gear (17), a fourth gear (18), a second bracket (19), and a second motor (20). The two crushing rollers (402) are arranged vertically. The second bracket (19) is fixedly connected to the support frame (2). One of the crushing rollers (402) is rotatably connected to the second bracket (19), and the other crushing roller (402) is rotatably connected to the support frame (2). The third gear (17) is fixedly connected to the crushing roller (402) on the second bracket (19). The fourth gear (18) is fixedly connected to the crushing roller (402) on the support frame (2). The third gear (17) meshes with the fourth gear (18). The output shaft of the second motor (20) is fixedly connected to the third gear (17), and the second motor (20) is installed on the second bracket (19).

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