A multi-stage crushing device for engineering plastics

Abstract

The utility model discloses a multi-stage crushing device for engineering plastics, including a crushing box, a primary crushing mechanism is arranged on the top of the inner wall of the crushing box, and a secondary crushing mechanism is arranged on the bottom of the inner wall of the crushing box, and a swing mechanism is sleeved on the outside of the secondary crushing mechanism; the swing mechanism includes a fixed plate, a half gear, a long shaft, a reduction motor, a gear ring and a crushing cylinder, the crushing cylinder is rotatably sleeved on the outside of the secondary crushing mechanism, the gear ring is arranged at the bottom of the crushing cylinder, and the fixed plate is arranged on the bottom inner wall of the crushing box, and one end of the long shaft is rotatably connected to the top of the fixed plate through a bearing seat. The multi-stage crushing device for engineering plastics of the utility model, through the primary crushing mechanism and the secondary crushing mechanism, driven by a motor one, makes two crushing rollers rotate in opposite directions, thereby realizing primary crushing of defective products in plastic production, and the crushed particles generated enter the secondary crushing mechanism through a guide cover one for full crushing.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering plastics, in particular to a multi-stage crushing device for engineering plastics. Background Art

[0002] Engineering plastics can be used as engineering materials and plastics that replace metals to manufacture machine parts. Engineering plastics have excellent comprehensive properties, high rigidity, low creep, high mechanical strength, good heat resistance, good electrical insulation, can be used for a long time in harsh chemical and physical environments, and can replace metals as engineering structural materials.

[0003] When using engineering plastics to cast parts, some defective products are inevitably produced. When recycling the defective products, they need to be crushed. The crushing efficiency of common plastic crushing devices is not high. Unqualified finished products need to be crushed multiple times, which reduces the working efficiency of the device. At the same time, there are problems such as large and rough crushed particles. Therefore, it is urgent to design a multi-stage crushing device for engineering plastics to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a multi-stage crushing device for engineering plastics to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-stage crushing device for engineering plastics comprises a crushing box, a primary crushing mechanism is arranged on the top of the inner wall of the crushing box, and a secondary crushing mechanism is arranged on the bottom of the inner wall of the crushing box, and a swing mechanism is sleeved on the outside of the secondary crushing mechanism; the swing mechanism comprises a fixed plate, a half gear, a long shaft, a reduction motor, a gear ring and a crushing cylinder, the crushing cylinder is rotatably sleeved on the outside of the secondary crushing mechanism, the gear ring is arranged at the bottom of the crushing cylinder, and the fixed plate is arranged at the bottom inner wall of the crushing box, one end of the long shaft is rotatably connected to the top of the fixed plate through a bearing seat, and the other end of the long shaft is rotatably connected to the bottom inner wall of the crushing box through a bearing seat, the output end of the reduction motor is connected to the top of the long shaft through a coupling, and the reduction motor is installed on the top of the fixed plate through bolts, there are two half gears, and the two half gears are symmetrically arranged at the upper and lower ends of the long shaft front and back, the half gears are meshed with the gear ring, and a plurality of filter holes are opened at the bottom of the crushing cylinder.

[0007] Preferably, the primary crushing mechanism includes a motor, a crushing roller, a gear set and a guide cover. There are two crushing rollers, which are staggered, and both ends of the crushing rollers are rotatably connected to the inner walls of both sides of the crushing box through bearing seats. One end of the crushing roller is connected to the output end of the motor through a coupling, and one end of the two crushing rollers is meshed through a gear set. The motor is installed on one side outer wall of the crushing box by bolts, and the guide cover is arranged around the inner wall of the crushing box, and the guide cover is located at the bottom of the crushing roller.

[0008] Preferably, the secondary crushing mechanism includes a crushing shaft arranged at the axis center of the crushing cylinder, and a bearing is arranged between the crushing shaft and the crushing cylinder, one end of the crushing shaft is connected to motor 2 through a coupling, and motor 2 is installed on one side outer wall of the crushing box through bolts.

[0009] Preferably, the bottom of the crushing cylinder is provided with a second flow guide cover and a third flow guide cover, and the bottom of the crushing cylinder is provided with a material inlet adapted to the third flow guide cover, the upper surface of the crushing cylinder is provided with a hole adapted to the first flow guide cover, and the second flow guide cover and the third flow guide cover extend to the bottom of the crushing box.

[0010] Preferably, a limit plate is provided on the inner wall of the bottom of the pulverizing box, a plurality of rollers are provided on the bottom of the pulverizing cylinder, and the limit plate is provided with grooves matched with the rollers.

[0011] In the above technical solution, the utility model provides a multi-stage crushing device for engineering plastics, which has the following beneficial effects:

[0012] (1) Through the primary crushing mechanism and the secondary crushing mechanism, driven by the motor 1, the two crushing rollers rotate in opposite directions, thereby realizing the primary crushing of defective products in plastic production. The generated crushed particles pass through the guide cover 1 and enter the secondary crushing mechanism for full crushing, thereby improving the crushing efficiency. The filter holes set in the crushing barrel can effectively screen the plastic with smaller particles and separate the qualified debris.

[0013] (2) Through the swing mechanism, under the action of the reduction motor, the two half gears are staggered and meshed with each other, thereby realizing the rotation of the crushing cylinder, increasing the screening speed, making the debris fall faster, and thus improving the crushing efficiency.

[0014] (3) The limiting plate and the roller are provided, and the groove on the limiting plate cooperates with the roller to limit the position of the crushing cylinder. The structure is simple, and the rolling of the crushing cylinder is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A structural stereogram is provided for an embodiment of a multi-stage crushing device for engineering plastics according to the utility model.

[0017] Figure 2 A structural sectional stereoscopic diagram is provided for an embodiment of a multi-stage crushing device for engineering plastics of the utility model.

[0018] Figure 3 A structural stereogram from one angle is provided for an embodiment of a multi-stage crushing device for engineering plastics of the utility model.

[0019] Figure 4 A structural stereogram of a swing mechanism provided in an embodiment of a multi-stage crushing device for engineering plastics of the utility model.

[0020] Figure 5 A structural stereogram of a roller and a limiting plate provided in an embodiment of a multi-stage crushing device for engineering plastics according to the utility model.

[0021] 1. Crushing box; 2. Motor 1; 3. Gear set; 4. Crushing roller; 5. Motor 2; 6. Reducer motor; 8. Air deflector 2; 9. Air deflector 1; 10. Crushing cylinder; 11. Crushing shaft; 12. Filter hole; 13. Air deflector 3; 14. Half gear; 15. Long shaft; 16. Fixed plate; 17. Roller; 18. Limit plate; 19. Gear ring; 20. Primary crushing mechanism; 21. Secondary crushing mechanism; 22. Swinging mechanism. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-5As shown, a multi-stage crushing device for engineering plastics provided by an embodiment of the utility model comprises a crushing box 1, a primary crushing mechanism 20 is arranged on the top of the inner wall of the crushing box 1, and a secondary crushing mechanism 21 is arranged on the bottom of the inner wall of the crushing box 1, and a swing mechanism 22 is sleeved on the outside of the secondary crushing mechanism 21; the swing mechanism 22 comprises a fixed plate 16, a half gear 14, a long shaft 15, a reduction motor 6, a gear ring 19 and a crushing cylinder 10, the crushing cylinder 10 is rotatably sleeved on the outside of the secondary crushing mechanism 21, the gear ring 19 is arranged on the bottom of the crushing cylinder 10, and the fixed plate 16 is arranged on the bottom inner wall of the crushing box 1, one end of the long axis 15 is rotatably connected to the top of the fixed plate 16 through a bearing seat, and the other end of the long axis 15 is rotatably connected to the bottom inner wall of the crushing box 1 through a bearing seat, the output end of the reduction motor 6 is connected to the top of the long axis 15 through a coupling, and the reduction motor 6 is installed on the top of the fixed plate 16 through bolts, there are two half gears 14, and the two half gears 14 are symmetrically arranged at the upper and lower ends of the long axis 15 front and back, the half gears 14 are meshed with the gear ring 19, and a plurality of filter holes 12 are opened at the bottom of the crushing cylinder 10.

[0024] Specifically, in this embodiment, a crushing box 1 is provided, a primary crushing mechanism 20 is provided at the top of the inner wall of the crushing box 1, and a secondary crushing mechanism 21 is provided at the bottom of the inner wall of the crushing box 1, and a swing mechanism 22 is sleeved on the outside of the secondary crushing mechanism 21; the swing mechanism 22 includes a fixed plate 16, a half gear 14, a long shaft 15, a reduction motor 6, a gear ring 19 and a crushing cylinder 10, the crushing cylinder 10 is rotatably sleeved on the outside of the secondary crushing mechanism 21, the gear ring 19 is provided at the bottom of the crushing cylinder 10, and the fixed plate 16 is provided on the bottom inner wall of the crushing box 1, and the long shaft 15 is provided on the bottom inner wall of the crushing box 1. One end of the long shaft 15 is rotatably connected to the top of the fixed plate 16 through a bearing seat, and the other end of the long shaft 15 is rotatably connected to the bottom inner wall of the crushing box 1 through a bearing seat, the output end of the reduction motor 6 is connected to the top of the long shaft 15 through a coupling, and the reduction motor 6 is installed on the top of the fixed plate 16 through bolts, there are two half gears 14, and the two half gears 14 are symmetrically arranged at the upper and lower ends of the long shaft 15 front and back, the half gears 14 are meshed with the gear ring 19, and a plurality of filter holes 12 are opened at the bottom of the crushing cylinder 10, and the filter holes 12 are used to filter smaller debris particles.

[0025] The utility model provides a multi-stage crushing device for engineering plastics. By setting a primary crushing mechanism 20 and a secondary crushing mechanism 21, the two crushing rollers 4 are driven by a motor 2 to rotate in opposite directions, thereby realizing primary crushing of defective products in plastic production. The generated crushed particles pass through a guide cover 9 and enter the secondary crushing mechanism 21 for full crushing, thereby improving the crushing efficiency. The filter holes 12 set in the crushing cylinder 10 can effectively screen plastics with smaller particles and separate qualified debris.

[0026] In one embodiment provided by the present utility model, Figure 2 As shown, the primary crushing mechanism 20 includes a motor 2, a crushing roller 4, a gear set 3 and a guide cover 9. There are two crushing rollers 4, which are staggered, and both ends of the crushing rollers 4 are rotatably connected to the inner walls of both sides of the crushing box 1 through bearing seats. One end of the crushing roller 4 is connected to the output end of the motor 2 through a coupling, and one end of the two crushing rollers 4 is meshed through the gear set 3. The motor 2 is installed on one side of the outer wall of the crushing box 1 through bolts. The guide cover 9 is arranged around the inner wall of the crushing box 1, and the guide cover 9 is located at the bottom of the crushing rollers 4. The primary crushed debris enters the secondary crushing mechanism 21 through the guide cover 9.

[0027] In another embodiment provided by the present utility model, Figure 2 and 3 As shown, the secondary crushing mechanism 21 includes a crushing shaft 11 arranged at the axis center of the crushing cylinder 10, and a bearing is arranged between the crushing shaft 11 and the crushing cylinder 10, the crushing cylinder 10 can rotate independently, and one end of the crushing shaft 11 is connected to the motor 2 5 through a coupling, and the motor 2 5 is installed on one side outer wall of the crushing box 1 through bolts.

[0028] In another embodiment provided by the present utility model, Figure 3 and 4 As shown, the bottom of the crushing barrel 10 is provided with a deflector 2 8 and a deflector 3 13. The deflector 2 8 is used to collect small-particle plastics, and the deflector 3 13 is used to collect large-particle plastics. The bottom of the crushing barrel 10 is provided with a material inlet that is compatible with the deflector 3 13. The upper surface of the crushing barrel 10 is provided with a hole that is compatible with the deflector 1 9. The deflector 2 8 and the deflector 3 13 extend to the bottom of the crushing box 1.

[0029] In one embodiment provided by the present utility model, Figure 5 As shown, a limit plate 18 is provided on the bottom inner wall of the crushing box 1, and a plurality of rollers 17 are provided on the bottom of the crushing cylinder 10. The limit plate 18 is provided with grooves adapted to the rollers 17. Through the cooperation between the limit plate 18 and the rollers 17, the crushing cylinder 10 can rotate without falling off.

[0030] Working principle: the staff puts the defective plastic products into the primary crushing mechanism 20, and turns on the motor 2. The motor 2 drives one of the crushing rollers 4 to rotate. At the other end of the crushing roller 4, the crushing roller 4 connected to the driven wheel is rotated through the meshing of the gear set 3, thereby realizing the primary crushing. The debris reaches the secondary crushing mechanism 21 through the guide cover 9. The motor 2 5 is turned on to rotate the crushing shaft 11, thereby realizing the secondary crushing. In the swing mechanism 22, driven by the reduction motor 6, the two half gears 14 are meshed with the gear ring 19 in turn, and the crushing cylinder 10 rotates. The debris is crushed through the filter hole 12 opened on the crushing cylinder 10 and discharged from the crushing box 1 through the guide cover 2 8. The debris with too large particles is discharged from the crushing box 1 through the guide cover 3 13 set at the bottom of the crushing cylinder 10 to be distinguished from the small particle debris and processed for the second time.

[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-stage crushing device for engineering plastics, comprising a crushing box (1), characterized in that: A primary crushing mechanism (20) is arranged at the top of the inner wall of the crushing box (1), and a secondary crushing mechanism (21) is arranged at the bottom of the inner wall of the crushing box (1), and a swing mechanism (22) is sleeved on the outside of the secondary crushing mechanism (21); The swing mechanism (22) comprises a fixed plate (16), a half gear (14), a long shaft (15), a reduction motor (6), a gear ring (19) and a crushing cylinder (10); the crushing cylinder (10) is rotatably sleeved on the outside of the secondary crushing mechanism (21); the gear ring (19) is arranged at the bottom of the crushing cylinder (10); and the fixed plate (16) is arranged on the bottom inner wall of the crushing box (1); one end of the long shaft (15) is rotatably connected to the top end of the fixed plate (16) through a bearing seat; and the long shaft (15) The other end is rotatably connected to the bottom inner wall of the crushing box (1) through a bearing seat, the output end of the reduction motor (6) is connected to the top of the long shaft (15) through a coupling, and the reduction motor (6) is installed on the top of the fixing plate (16) through bolts, the half gears (14) are two, and the two half gears (14) are symmetrically arranged at the upper and lower ends of the long shaft (15) front and back, the half gears (14) are meshed with the gear ring (19), and a plurality of filtering holes (12) are opened at the bottom of the crushing cylinder (10).

2. The multi-stage crushing device for engineering plastics according to claim 1, characterized in that: The primary crushing mechanism (20) comprises a motor (2), a crushing roller (4), a gear set (3) and a deflector (9). There are two crushing rollers (4), the two crushing rollers (4) are staggered, and the two ends of the crushing rollers (4) are rotatably connected to the inner walls of the crushing box (1) on both sides through bearing seats. One end of the crushing roller (4) is connected to the output end of the motor (2) through a coupling, and one end of the two crushing rollers (4) are meshed through the gear set (3). The motor (2) is installed on the outer wall of one side of the crushing box (1) through bolts. The deflector (9) is arranged around the inner wall of the crushing box (1), and the deflector (9) is located at the bottom of the crushing roller (4).

3. The multi-stage crushing device for engineering plastics according to claim 1, characterized in that: The secondary pulverizing mechanism (21) comprises a pulverizing shaft (11) arranged at the axis of the pulverizing cylinder (10), and a bearing is arranged between the pulverizing shaft (11) and the pulverizing cylinder (10), one end of the pulverizing shaft (11) is connected to a second motor (5) via a coupling, and the second motor (5) is mounted on one side outer wall of the pulverizing box (1) via bolts.

4. The multi-stage crushing device for engineering plastics according to claim 3, characterized in that: The bottom of the crushing cylinder (10) is provided with a second flow guide cover (8) and a third flow guide cover (13), and the bottom of the crushing cylinder (10) is provided with a material opening adapted to the third flow guide cover (13), and the upper surface of the crushing cylinder (10) is provided with a hole adapted to the first flow guide cover (9), and the second flow guide cover (8) and the third flow guide cover (13) penetrate to the bottom of the crushing box (1).

5. The multi-stage crushing device for engineering plastics according to claim 1, characterized in that: A limiting plate (18) is provided on the inner wall of the bottom of the crushing box (1), a plurality of rollers (17) are provided on the bottom of the crushing cylinder (10), and the limiting plate (18) is provided with grooves adapted to the rollers (17).

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