Motor injection molding accessory excess material recycling equipment

Abstract

The invention relates to the technical field of injection molding excess material recycling, in particular to motor injection molding accessory excess material recycling equipment which comprises an air suction cylinder, a first screening plate and a second screening plate are installed in an inner cavity of the air suction cylinder, and screening holes of different sizes are formed in the surfaces of the first screening plate and the second screening plate correspondingly; a crushing cutter is fixedly arranged on the inner wall of the crushing cylinder; a crushing cutter is mounted on the surface of the crushing roller, a rotating shaft fixedly penetrates through the middle of the crushing roller, and an exhaust fan is fixedly mounted at one end of the rotating shaft; the device has the beneficial effects that smashing cutters are fixed to the inner wall of the smashing cylinder, smashing rollers are rotationally installed in an inner cavity of the smashing cylinder, crushing cutters are arranged on the surfaces of the smashing rollers, and when an exhaust fan rotates, hot air is extracted to flow, on one hand, injection molding excess materials are dried, and on the other hand, small-particle-size excess material particles can be driven to move; according to the device, the three procedures of drying, smashing and screening in the injection molding excess material recycling process are integrated, the overall size of equipment is reduced, and therefore the excess material recycling cost is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding waste material recycling, in particular to a motor injection molding parts waste material recycling device. Background Art

[0002] Motor injection molding residues are excess materials remaining in the mold runner, gate or part edge after plastic injection molding, such as burrs, material handles, etc., which are usually caused by improper control of injection pressure, temperature or mold gap. They need to be removed manually or mechanically to ensure the dimensional accuracy and appearance quality of the parts. Some of the residues can be recycled to reduce production costs.

[0003] In the prior art, a Chinese invention with publication number CN119217585A discloses a plastic injection molding waste material recycling mechanism, which has the advantages of comprehensive cleaning, stable transportation, rapid crushing, reciprocating screening, double drying, reliable structure and simple operation.

[0004] However, at present, the drying, crushing and screening processes of injection molding waste are independent of each other, and the related equipment structures involved in each process are all large in size, which leads to the fact that the overall space occupied by the injection molding waste recycling equipment is too large and the waste recycling cost is too high. To this end, the present invention proposes a motor injection molding parts waste recycling equipment to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a motor injection molding parts waste material recycling device to solve the problems of large size and high recycling cost of the injection molding waste material recycling device mentioned in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solution: a motor injection molding parts waste material recycling device, comprising:

[0007] A vacuum pump, wherein the inner cavity of the vacuum pump is installed with a first screen plate and a second screen plate, and the surfaces of the two screen plates are respectively provided with screen holes of different sizes, and a feed opening is arranged at the lower side of the middle part of the vacuum pump, and the feed opening is located between the first screen plate and the second screen plate;

[0008] A crushing cylinder, the crushing cylinder is located at the open end of the vacuum cylinder, and a crushing knife is fixedly arranged on the inner wall of the crushing cylinder;

[0009] A crushing roller, the crushing roller is rotatably installed in the inner cavity of the crushing cylinder and is eccentric to the crushing cylinder, a crushing knife is installed on the surface of the crushing roller, a rotating shaft is fixedly installed through the middle of the crushing roller, one end of the rotating shaft is movably installed through the first screen plate and the second screen plate in turn and extends into the inner cavity of the vacuum cylinder, and an exhaust fan is fixedly installed on one end of the rotating shaft;

[0010] The feeding cylinder and the air pumping cylinder are respectively located at two ends of the crushing cylinder, and the crushing cylinder is rotatably installed between the feeding cylinder and the air pumping cylinder.

[0011] Preferably, the other end of the rotating shaft movably penetrates the inner wall of the feed barrel through a bearing, the upper part of the feed barrel is fixedly connected to a feed pipe, the side of the feed barrel away from the crushing barrel is connected to a hot air pipe, and the side of the exhaust barrel away from the crushing barrel is connected to an exhaust pipe.

[0012] Preferably, the cutting edge of the pulverizing knife is provided with oblique tooth grooves, and a flipping plate is fixedly connected to the middle of the pulverizing knife, the flipping plate is along the length direction of the pulverizing cylinder and is fixedly connected to the inner wall of the pulverizing cylinder, and the width direction of the flipping plate coincides with the radial direction of the pulverizing cylinder.

[0013] Preferably, the crushing knives are provided in multiple groups and are distributed in a circular array around the axis of the crushing barrel, each group of the crushing knives is provided with multiple crushing knives and are distributed at equal intervals along the axis direction of the crushing barrel, and the multiple groups of crushing knives are staggered with each other, and the outer fixed sleeve of the crushing barrel is provided with a gear ring, and the outer side of the gear ring is meshed with a driving gear driven by motor 1.

[0014] Preferably, a receiving groove is provided on the side wall of the crushing roller, and a knife seat is rotatably mounted in the inner cavity of the receiving groove through a fixed shaft, the crushing knife is fixed to the surface of the knife seat, and the thickness of the crushing knife is smaller than the width of the knife seat, and the cutting edge of the crushing knife is arc-shaped and is inclined around the axis of the crushing roller.

[0015] Preferably, a limiting groove is provided on the inner wall of the storage groove, the limiting groove is arc-shaped, and the center of the circle coincides with the fixed axis, a limiting pin is fixedly provided through one end of the knife seat, and the end of the limiting pin is movably inserted into the inner cavity of the limiting groove, and a thrust spring is provided in the inner cavity of the storage groove, and the two ends of the thrust spring respectively press against the bottom of the storage groove and the surface of the knife seat.

[0016] Preferably, a vibration ring concentric with the rotating shaft is fixedly provided in the middle of the second screen plate, a wavy rolling groove is provided on the surface of the vibration ring, a vibration disk is provided on one side of the vibration ring, and the vibration disk is fixedly sleeved on the outside of the rotating shaft, and a rolling body is movably embedded on the side of the vibration disk, and the rolling body is pressed on the bottom of the rolling groove.

[0017] Preferably, an annular groove is provided on the side of the vibration disk, and the annular groove covers the outer side of the vibration ring, an inlay groove is provided at the bottom of the annular groove for movably inlaying the rolling body, a return spring is provided in the inner cavity of the inlay groove, and the return spring presses against the rolling body, and a weight-reducing groove is provided on the surface of the vibration disk.

[0018] Preferably, the upper end of the feed pipe is connected to a material bin, and a valve assembly is provided in the middle of the feed pipe. The valve assembly includes a valve seat fixedly connected to the feed pipe, and a through hole is opened through the middle of the valve seat. Valve plates that close the through hole are movably inserted on both sides of the valve seat, and the valve plates are driven to slide by a cylinder.

[0019] Preferably, a second motor is provided at one end of the rotating shaft, the second motor is fixed to the outer wall of the vacuum cylinder and drives the rotating shaft to rotate, and a protective sleeve located in the inner cavity of the feed cylinder is provided on the outer side of the other end of the rotating shaft.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention has a crushing knife fixed on the inner wall of the crushing cylinder, a crushing roller rotatably installed in the inner cavity of the crushing cylinder and eccentric thereto, a crushing knife is arranged on the surface of the crushing roller, a screening plate is arranged in the inner cavity of the vacuum cylinder, one end of the rotating shaft passes through the screening plate, and an exhaust fan is installed on the end. The crushing cylinder rotates at a low speed to turn over the injection molding residue, the crushing roller and the rotating shaft rotate at a high speed, the crushing knife can crush the injection molding residue in mid-air, and the exhaust fan draws hot air flow when it rotates, which on the one hand dries the injection molding residue, and on the other hand drives the small-sized residue particles to move, ensuring that the residue particles that meet the crushing particle size standard can be discharged from the discharge port in time, while the large-sized residue that has not been completely crushed continues to remain in the inner cavity of the crushing cylinder to be crushed. The device integrates the three processes of drying, crushing and screening in the process of recycling injection molding residues, reduces the overall size of the equipment, and thus effectively reduces the cost of recycling residues. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0024] Figure 3 It is a schematic side cross-sectional view of the grinding tube structure of the present invention;

[0025] Figure 4 It is a partially cutaway schematic diagram of the grinding tube structure of the present invention;

[0026] Figure 5 It is a three-dimensional schematic diagram of the structure of the crushing roller and the rotating shaft of the present invention;

[0027] Figure 6 It is a schematic side cross-sectional view of the crushing roller structure of the present invention;

[0028] Figure 7 It is a three-dimensional schematic diagram of the crushing knife structure of the present invention;

[0029] Figure 8This is a schematic diagram of the separation structure of the second screening plate and the vibration plate of the present invention;

[0030] Fig. 9 It is a partial cutaway schematic diagram of the vibration plate structure of the present invention;

[0031] Fig.10 It is a three-dimensional schematic diagram of the valve assembly structure of the present invention.

[0032] In the figure: 1. vacuum cylinder; 11. feeding port; 12. screening plate 1; 13. screening plate 2; 131. vibration ring; 132. rolling groove; 14. exhaust pipe; 2. crushing cylinder; 21. crushing knife; 22. oblique tooth groove; 23. turning plate; 24. gear ring; 25. driving gear; 26. motor 1; 3. crushing roller; 31. crushing knife; 32. knife seat; 33. storage groove; 34. limit slide; 35. fixed shaft; 36 , limit pin; 37, thrust spring; 4, rotating shaft; 41, exhaust fan; 42, vibration plate; 421, annular groove; 422, inlay groove; 423, rolling body; 424, reset spring; 425, weight reduction groove; 43, protective cover; 44, motor 2; 5, feed barrel; 51, feed pipe; 52, hot air pipe; 6, silo; 7, valve assembly; 71, valve seat; 72, through hole; 73, valve plate; 74, cylinder. DETAILED DESCRIPTION

[0033] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 10 , the present invention provides a technical solution:

[0035] Embodiment 1, a motor injection molding parts residual material recycling device, comprises: a vacuum cylinder 1, a crushing cylinder 2, a crushing roller 3 and a feeding cylinder 5.

[0036] Specifically, a sieve plate 12 and a sieve plate 2 13 are installed in the inner cavity of the vacuum cylinder 1, and sieve holes of different sizes are respectively opened on the surfaces of the two sieve plates. Figure 2As shown, the sieve plate 12 is located on the left side of the sieve plate 2 13, and the sieve hole aperture opened on the surface of the sieve plate 12 is larger than the sieve hole aperture opened on the surface of the sieve plate 2 13. The sieve plate 12 is used to block the large-sized injection molding residue that has not been completely crushed, and only allows the small-sized residue particles that have been completely crushed to pass through. The sieve plate 2 13 is used to block all injection molding residues and residue particles, and only allows air to flow through. That is to say, when the injection molding residue is crushed, the residue that has not been completely crushed remains on the left side of the sieve plate 12, and the completely crushed residue particles are located between the sieve plate 12 and the sieve plate 2 13; in addition, a discharge port 11 is provided on the lower side of the middle part of the vacuum cylinder 1, and the discharge port 11 is located between the sieve plate 12 and the sieve plate 2 13, and the residue particles can be automatically discharged from the discharge port 11 under the action of their own gravity;

[0037] Secondly, the crushing cylinder 2 is located at the open end of the vacuum cylinder 1, and a crushing knife 21 is fixedly arranged on the inner wall of the crushing cylinder 2. The crushing cylinder 2 itself keeps rotating at a low speed. When the crushing cylinder 2 rotates, the crushing knife 21 can perform preliminary crushing on the injection molding residue and turn over the injection molding residue to prevent the injection molding residue from accumulating at the bottom of the crushing cylinder 2 and affecting the crushing efficiency;

[0038] Furthermore, the crushing roller 3 is rotatably mounted in the inner cavity of the crushing cylinder 2 and is eccentric to the crushing cylinder 2. A crushing knife 31 is mounted on the surface of the crushing roller 3. Figure 3 As shown, the crushing cylinder 2 and the crushing roller 3 both keep rotating clockwise, the crushing cylinder 2 is at a low speed and the crushing roller 3 is at a high speed. When the crushing cylinder 2 rotates, the injection molding residue is turned over, so that most of the injection molding residue can fall on the surface of the crushing roller 3. At this time, the crushing knife 31 rotates to crush the injection molding residue in the air, and a rotating shaft 4 is fixedly installed in the middle of the crushing roller 3 to position the crushing roller 3. One end of the rotating shaft 4 is movably installed to penetrate the screening plate 1 12 and the screening plate 2 13 in turn and extend into the inner cavity of the vacuum cylinder 1. An exhaust fan 41 is fixedly installed at one end of the rotating shaft 4. The crushing roller 3, the rotating shaft 4 and the exhaust fan 41 keep rotating synchronously. When the exhaust fan 41 rotates at a high speed, it can drive air flow, as shown in FIG. Figure 2As shown, the air in the inner cavity of the crushing barrel 2 flows from left to right. Since the injection molding residue is crushed into residue particles by the crushing knife 31 in mid-air, the residue particles themselves are small in size and low in weight. Therefore, the air in the inner cavity of the crushing barrel 2 can drive the residue particles to move to the right, until the residue particles pass through the screening plate 12 and are blocked by the screening plate 2 13, and the residue particles are finally discharged downward from the discharge port 11. It should be noted that the residue particles themselves still have weight. The residue particles in the inner cavity of the crushing barrel 2 and in mid-air will gradually fall to the bottom of the crushing barrel 2. Therefore, the crushing barrel 2 needs to turn over the residue particles when rotating, so that the residue particles are located in mid-air again, so as to continue to move with the flow of air; in addition, the injection molding residues of large size and weight remain in the inner cavity of the crushing barrel 2, and the above process is repeated to be continuously crushed until they become residue particles.

[0039] In addition, the feed cylinder 5 and the vacuum cylinder 1 are respectively located at the two ends of the crushing cylinder 2, and the crushing cylinder 2 is rotatably installed between the feed cylinder 5 and the vacuum cylinder 1. Hot air is introduced into the inner cavity of the feed cylinder 5. When the vacuum fan 41 rotates, it drives the air to flow and forms a negative pressure in the inner cavity of the crushing cylinder 2. Therefore, the hot air in the inner cavity of the feed cylinder 5 can automatically flow to the right, thereby realizing the drying treatment of the injection molding residue and the residue particles.

[0040] In order to ensure the normal flow of gas inside the device, the present application also has an inner wall of the feed barrel 5 that penetrates through the bearing at the other end of the rotating shaft 4, and the upper part of the feed barrel 5 is fixedly connected with a feed pipe 51. The injection molding residue enters the inner cavity of the feed barrel 5 from the feed pipe 51, and then enters the inner cavity of the crushing barrel 2 for crushing. A hot air duct 52 is connected on the side of the feed barrel 5 away from the crushing barrel 2. The hot air duct 52 is connected to an external hot air blower and is used to introduce hot air into the inner cavities of the feed barrel 5 and the crushing barrel 2 to achieve drying of the residue. An exhaust pipe 14 is connected on the side of the vacuum barrel 1 away from the crushing barrel 2 to provide normal flow of gas in the inner cavity of the vacuum barrel 1.

[0041] In order to improve the crushing effect of the residual material, the present application also has a beveled tooth groove 22 at the edge of the crushing knife 21. The setting of the beveled tooth groove 22 is used to improve the crushing effect of the injection molding residual material, and the crushing knife 31 will also throw out part of the residual material when rotating at a high speed. These thrown residual materials can also be well crushed after colliding with the beveled tooth groove 22. A flipping plate 23 is fixedly connected to the middle of the crushing knife 21. The flipping plate 23 is along the length direction of the crushing barrel 2 and is fixedly connected to the inner wall of the crushing barrel 2. The width direction of the flipping plate 23 coincides with the radial direction of the crushing barrel 2. Figure 4 As shown, the setting of the turning plate 23 can improve the strength of the crushing knife 21 itself on the one hand, and on the other hand, it can turn over the injection molding residue and residual particles as the crushing cylinder 2 rotates, further avoiding the accumulation of residual particles at the bottom of the inner cavity of the crushing cylinder 2.

[0042] In order to drive the pulverizing drum 2 to rotate, the pulverizing blades 21 of the present application are provided with multiple groups and are distributed in a circular array around the axis of the pulverizing drum 2. Each group of pulverizing blades 21 is provided with multiple pulverizing blades and are distributed at equal intervals along the axis direction of the pulverizing drum 2. The provision of multiple groups and multiple pulverizing blades 21 can effectively improve the pulverizing effect of the injection molding residue in the inner cavity of the pulverizing drum 2, and the multiple groups of pulverizing blades 21 are staggered with each other to ensure that the injection molding residue can be pulverized at all positions on the inner wall of the pulverizing drum 2. In addition, a gear ring 24 is fixedly sleeved on the outer side of the pulverizing drum 2, and a driving gear 25 driven by a motor 26 is meshedly provided on the outer side of the gear ring 24. When the motor 26 is working, the driving gear 25 is driven to rotate, and then the pulverizing drum 2 is driven to rotate through the meshing transmission between the driving gear 25 and the gear ring 24. The cooperation of the driving gear 25 and the gear ring 24 can be used to decelerate the rotation of the pulverizing drum 2, ensuring that the rotation of the pulverizing drum 2 maintains a low speed and a large torque.

[0043] In order to improve the crushing effect of the injection molding residue, the present application also has a receiving groove 33 opened on the side wall of the crushing roller 3, and the inner cavity of the receiving groove 33 is rotatably mounted with a knife seat 32 through a fixed shaft 35, such as Figure 6 As shown, the knife seat 32 can rotate around the fixed axis 35 at a certain angle, and the knife seat 32 can be received into the inner cavity of the receiving groove 33 or rotated out from the inner cavity of the receiving groove 33 when rotating. The crushing knife 31 is fixed to the surface of the knife seat 32, and the thickness of the crushing knife 31 is smaller than the width of the knife seat 32. Figure 7 As shown, the cutting edge on the crushing knife 31 mainly plays a crushing effect on the residual material, and the crushed residual material can quickly contact the knife seat 32, and can be thrown outward by the knife seat 32 when contacting the knife seat 32. Compared with the crushing knife 31, the knife seat 32 has a larger contact area with the residual material, and it is easier to throw the residual material outward. After being thrown out, the residual material collides with the crushing knife 21 and is crushed again. In addition, the cutting edge of the crushing knife 31 is arc-shaped and is inclined around the axis of the crushing roller 3. When the crushing knife 31 contacts the injection molding residual material, due to its own high-speed rotation, its cutting edge can form a sawing effect on the residual material. Therefore, it can be suitable for injection molding residual material with higher strength and has a good crushing effect.

[0044] In order to ensure that the knife seat 32 can quickly throw out the excess material, the present application also has a limited sliding groove 34 on the inner side wall of the storage groove 33. The limited sliding groove 34 is arc-shaped, and the center of the circle coincides with the fixed axis 35. One end of the knife seat 32 is fixedly penetrated by a limited pin shaft 36, and the end of the limited pin shaft 36 is movably inserted into the inner cavity of the limited sliding groove 34. Figure 6The stop pin 36 can only slide in the inner cavity of the stop slot 34, and the cooperation of the stop slot 34 and the stop pin 36 can be used to limit the rotation of the knife seat 32, preventing the knife seat 32 from rotating outward at an excessive angle and causing the receiving slot 33 to be exposed, thereby preventing the residual material particles from entering the inner cavity of the receiving slot 33 and affecting the knife seat 32 from being received in the inner cavity of the receiving slot 33. A thrust spring 37 is provided in the inner cavity of the receiving slot 33, and the two ends of the thrust spring 37 respectively press against the bottom of the receiving slot 33 and the surface of the knife seat 32, and the thrust spring 37 always provides thrust, so that the knife seat 32 always has a tendency to rotate outward. When the residual material collides with the knife seat 32, the knife seat 32 rotates toward the inner cavity of the receiving slot 33 for storage, and the knife seat 32 quickly rotates out of the receiving slot 33 under the dual action of the rotating centrifugal force of the crushing roller 3 and the thrust of the thrust spring 37, thereby quickly throwing out the residual material.

[0045] In order to prevent the screening holes on the surface of the screening plate 13 from being blocked, the present application also has a vibration ring 131 fixedly arranged in the middle of the screening plate 13, which is concentric with the rotating shaft 4. A wave-shaped rolling groove 132 is opened on the surface of the vibration ring 131. A vibration plate 42 is arranged on one side of the vibration ring 131, and the vibration plate 42 is fixedly sleeved on the outside of the rotating shaft 4. A rolling body 423 is movably embedded on the side of the vibration plate 42, and the rolling body 423 is pressed on the bottom of the rolling groove 132. Figure 8 and Fig. 9 As shown, when the rotating shaft 4 rotates, it drives the vibration plate 42 to rotate accordingly. At this time, the rolling body 423 rolls on the bottom of the rolling groove 132. Since the rolling groove 132 is wavy, the rolling body 423 will produce collision vibration on the vibration ring 131, and then drive the screening plate 13 to vibrate, thereby preventing some small-sized residual particles from getting stuck in the screening holes on the surface of the screening plate 13 and causing blockage.

[0046] In order to install the rolling body 423, the present application also has an annular groove 421 on the side of the vibration disk 42, and the annular groove 421 covers the outer side of the vibration ring 131. After the annular groove 421 covers the vibration ring 131, it can prevent dust, impurities, etc. from falling on the rolling groove 132, thereby ensuring that the rolling body 423 can roll smoothly at the bottom of the rolling groove 132 and reducing the friction resistance between the two. In addition, an inlay groove 422 for the rolling body 423 to be movably inlaid is provided at the bottom of the annular groove 421, and a return spring 424 is provided in the inner cavity of the inlay groove 422, and the return spring 424 presses against the rolling body 423. Fig. 9 As shown, the return spring 424 always provides thrust so that the rolling body 423 can always be pressed on the bottom of the rolling groove 132. In addition, the return spring 424 can also cushion the impact on the rolling body 423 and reduce the vibration of the vibration plate 42 itself. A weight reduction groove 425 is opened on the surface of the vibration plate 42 to reduce the overall weight of the vibration plate 42.

[0047] In order to control the feeding amount of the injection molding residue, the present application also has a silo 6 connected to the upper end of the feed pipe 51. According to actual needs, if there is a lot of oil on the surface of the injection molding residue, the injection molding residue can be put into the inner cavity of the silo 6 after cleaning, and then sent to the inner cavity of the feed cylinder 5 and the crushing cylinder 2 for crushing, drying and screening; if there is a lot of dust and impurities on the surface of the injection molding residue, but there is no oil, it is not necessary to clean it. During the crushing, drying and screening of the injection molding residue in the inner cavity of the crushing cylinder 2, the dust and impurities on its surface can be automatically screened under the action of airflow, and finally discharged from the exhaust pipe 14; in addition, a valve assembly 7 is provided in the middle of the feed pipe 51, and the valve assembly 7 includes a valve seat 71 fixedly connected to the feed pipe 51, and a through hole 72 is opened in the middle of the valve seat 71, and valve plates 73 that close the through hole 72 are movably inserted on both sides of the valve seat 71, and the valve plates 73 are driven to slide by the cylinder 74, such as Fig.10 As shown, the cylinder 74 can control the sliding of the valve plate 73, and then control the opening and closing of the through hole 72, so as to control the connection between the silo 6 and the feed barrel 5, and then control the feed amount of the injection molding residue and avoid the leakage of hot air.

[0048] In order to drive the rotating shaft 4 to rotate, the present application also has a motor 44 arranged at one end of the rotating shaft 4. The motor 44 is fixed to the outer wall of the vacuum cylinder 1 and drives the rotating shaft 4 to rotate. The other end of the rotating shaft 4 is sleeved on the outside with a protective sleeve 43 located in the inner cavity of the feeding cylinder 5. When the motor 44 is working, it directly drives the rotating shaft 4 to rotate at high speed. The setting of the protective sleeve 43 can be used to reduce the impact force on the other end of the rotating shaft 4 when the injection molding residue falls, thereby avoiding the possibility of bending and deformation of the rotating shaft 4 after long-term use.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor injection molding parts waste material recycling device, characterized by: include: A vacuum cylinder (1), wherein a first sieve plate (12) and a second sieve plate (13) are installed in the inner cavity of the vacuum cylinder (1), and sieve holes of different sizes are respectively opened on the surfaces of the two sieve plates; a discharge port (11) is arranged at the lower middle side of the vacuum cylinder (1), and the discharge port (11) is located between the first sieve plate (12) and the second sieve plate (13); A crushing cylinder (2), the crushing cylinder (2) being located at the open end of the vacuum cylinder (1), and a crushing knife (21) being fixedly arranged on the inner wall of the crushing cylinder (2); A crushing roller (3), the crushing roller (3) is rotatably mounted in the inner cavity of the crushing cylinder (2) and is eccentric to the crushing cylinder (2), a crushing knife (31) is mounted on the surface of the crushing roller (3), a rotating shaft (4) is fixedly installed through the middle of the crushing roller (3), one end of the rotating shaft (4) is movably installed through the first screen plate (12) and the second screen plate (13) in turn and extends into the inner cavity of the exhaust cylinder (1), and an exhaust fan (41) is fixedly installed on one end of the rotating shaft (4); A feeding cylinder (5), wherein the feeding cylinder (5) and the air pumping cylinder (1) are respectively located at two ends of the crushing cylinder (2), and the crushing cylinder (2) is rotatably installed between the feeding cylinder (5) and the air pumping cylinder (1).

2. The motor injection molding parts waste material recycling equipment according to claim 1 is characterized by: The other end of the rotating shaft (4) is movably connected to the inner wall of the feed barrel (5) through a bearing, and the upper part of the feed barrel (5) is fixedly connected to a feed pipe (51), and the side of the feed barrel (5) away from the crushing barrel (2) is connected to a hot air pipe (52), and the side of the exhaust barrel (1) away from the crushing barrel (2) is connected to an exhaust pipe (14).

3. The motor injection molding parts waste material recycling equipment according to claim 1 is characterized by: The cutting edge of the crushing knife (21) is provided with an oblique tooth groove (22), and a material turning plate (23) is fixedly connected and penetrated through the middle of the crushing knife (21). The material turning plate (23) is along the length direction of the crushing cylinder (2) and is fixedly connected to the inner wall of the crushing cylinder (2), and the width direction of the material turning plate (23) coincides with the radial direction of the crushing cylinder (2).

4. The motor injection molding parts waste material recycling equipment according to claim 1 is characterized by: The crushing knives (21) are provided in a plurality of groups and are distributed in a ring array around the axis of the crushing cylinder (2); each group of the crushing knives (21) is provided with a plurality of crushing knives and are distributed at equal intervals along the axis direction of the crushing cylinder (2); the plurality of groups of crushing knives (21) are mutually staggered; a gear ring (24) is provided on the outer fixed sleeve of the crushing cylinder (2); a driving gear (25) driven by a motor (26) is meshedly provided on the outer side of the gear ring (24).

5. The motor injection molding parts waste material recycling equipment according to claim 1 is characterized by: The side wall of the crushing roller (3) is provided with a receiving groove (33), the inner cavity of the receiving groove (33) is rotatably mounted with a knife seat (32) via a fixed shaft (35), the crushing knife (31) is fixed to the surface of the knife seat (32), the thickness of the crushing knife (31) is smaller than the width of the knife seat (32), the cutting edge of the crushing knife (31) is arc-shaped, and is arranged obliquely around the axis of the crushing roller (3).

6. The motor injection molding parts waste material recycling equipment according to claim 5, characterized in that: A limiting slide groove (34) is provided on the inner side wall of the receiving groove (33), the limiting slide groove (34) is arc-shaped, and the center of the circle coincides with the fixed axis (35); a limiting pin shaft (36) is fixedly provided through one end of the knife seat (32), and the end of the limiting pin shaft (36) is movably inserted into the inner cavity of the limiting slide groove (34); a thrust spring (37) is provided in the inner cavity of the receiving groove (33), and the two ends of the thrust spring (37) respectively press against the bottom of the receiving groove (33) and the surface of the knife seat (32).

7. The motor injection molding parts waste material recycling equipment according to claim 1 is characterized by: A vibration ring (131) is fixedly arranged in the middle of the second screening plate (13) and is concentric with the rotating shaft (4); a wave-shaped rolling groove (132) is provided on the surface of the vibration ring (131); a vibration disk (42) is arranged on one side of the vibration ring (131), and the vibration disk (42) is fixedly sleeved on the outside of the rotating shaft (4); a rolling body (423) is movably embedded on the side of the vibration disk (42), and the rolling body (423) is pressed on the bottom of the rolling groove (132).

8. The motor injection molding parts waste material recycling equipment according to claim 7 is characterized by: The side surface of the vibration plate (42) is provided with an annular groove (421), and the annular groove (421) covers the outer side of the vibration ring (131); the bottom of the annular groove (421) is provided with an embedding groove (422) for movably embedding a rolling body (423); the inner cavity of the embedding groove (422) is provided with a return spring (424), and the return spring (424) abuts against the rolling body (423); and the surface of the vibration plate (42) is provided with a weight reduction groove (425).

9. The motor injection molding parts waste material recycling equipment according to claim 1, characterized in that: The upper end of the feed pipe (51) is connected to a material bin (6), and a valve assembly (7) is provided in the middle of the feed pipe (51). The valve assembly (7) includes a valve seat (71) fixedly connected to the feed pipe (51), and a through hole (72) is provided in the middle of the valve seat (71). Valve plates (73) closing the through hole (72) are movably inserted on both sides of the valve seat (71), and the valve plates (73) are driven to slide by a cylinder (74).

10. The motor injection molding parts waste material recycling equipment according to claim 1, characterized in that: A second motor (44) is provided at one end of the rotating shaft (4), and the second motor (44) is fixed to the outer wall of the vacuum cylinder (1) and drives the rotating shaft (4) to rotate. A protective sleeve (43) located in the inner cavity of the feeding cylinder (5) is sleeved on the outer side of the other end of the rotating shaft (4).

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