A kind of freezing deburring equipment for plastic earphone shell

Abstract

The present invention relates to the field of earphone shell production technology, and specifically to a plastic earphone shell freezing deburring device, including a sand material frame, a waste material collection frame, a burr removal working cylinder, etc.; a feed port and a sandblasting chamber are respectively provided on both sides of the upper part of the burr removal working cylinder, and a feeding assembly connected thereto is provided at the feed port, and a sandblasting assembly is provided in the sandblasting chamber, and a discharge port is provided at the lower part of the burr removal working cylinder, and the discharge port is connected to the waste material collection frame, and the waste material collection frame is installed on the upper part of the sand material frame. The cam 1 is driven to rotate by the first power assembly, and the cam 1 drives the rack to reciprocate in the left and right directions, and the rack drives the gear meshing therewith to rotate forward and reversely, thereby driving the stirring rack to rotate forward and reversely through the rotating rod 2, and the stirring rack reciprocates and stirs the earphone shell in the rotating cylinder in forward and reverse directions, and the sandblasting assembly performs sandblasting on the stirred earphone shell, so as to achieve the effect of efficiently and evenly deburring the earphone shell.

Description

Technical Field

[0001] The invention relates to the technical field of earphone shell production, and in particular to a freezing deburring device for a plastic earphone shell. Background Art

[0002] Headphones are one of the most common and most commonly used items for modern people. As people's living standards continue to improve, their requirements for the quality of headphone shells are also getting higher and higher. Headphone shells are usually made by injection molding, but burrs are prone to appear at the connection between the two molds after injection molding. The burrs on the headphone shells need to be polished and removed.

[0003] Most of the existing methods are to remove burrs on the earphone shell through freezing deburring equipment. The earphone shell is usually placed in a rotating drum of the freezing deburring equipment. The plastic material is brittle through low-temperature freezing of liquid nitrogen. The hardness of the burr will be better than before due to being frozen. The rotating drum is rotated at high speed and a polymer sandblast is sprayed to hit the burr. After the burr is hit, the structure of the burr changes and it falls off, thereby deburring the earphone shell. However, there are generally a large number of earphone shells in the rotating drum, and most of them sink and float in the lower part of the inner cavity of the rotating drum. When the ejected sandblast is used to deburr the earphone shell, the earphone shells accumulate and float in the lower part of the inner cavity of the rotating drum, resulting in that the burrs on some earphone shells cannot be removed.

[0004] Based on this, it is necessary to design a plastic earphone shell freezing deburring device that can efficiently and evenly deburr the earphone shell. Summary of the invention

[0005] The technical solution of the present invention is: a plastic earphone shell freezing deburring equipment, including a sand material frame, a waste collection frame, a burr removal working cylinder, a rotating plate, a rotating cylinder, a sandblasting component, a feeding component and a stirring component, the burr removal working cylinder is respectively provided with a feed port and a sandblasting chamber on both sides of the upper part, the feed port is provided with a feeding component connected thereto, the sandblasting chamber is provided with a sandblasting component, the burr removal working cylinder is provided with a discharge port at the lower part, the discharge port is connected with the waste collection frame, the waste collection frame is installed on the upper part of the sand material frame, a rotating plate is rotatably provided in the burr removal working cylinder, a rotating cylinder is rotatably installed on the rotating plate, and a stirring component is provided on the rotating plate for stirring the material in the rotating cylinder to realize the sandblasting component to efficiently and evenly deburr the material.

[0006] Preferably, the stirring assembly includes a first power assembly, a cam 1, a rack, a limit frame, a rotating rod 2, a stirring frame and a gear. The rotating plate is provided with a first power assembly that drives the rotating drum to rotate. The output shaft of the power component in the first power assembly passes through the end of the rotating plate and is connected to the cam 1. The cam 1 is rotatably connected to the rack. A rotating rod 2 is rotatably arranged in the rotating drum. The stirring frame is installed on the rotating rod 2. The stirring frame is arranged in the rotating drum. The rotating rod 2 passes through the rotating drum and the end of the rotating plate in sequence and is connected to the gear. The gear is meshed with the rack. A limit frame is rotatably arranged on the rotating plate. The limit frame surrounds the gear, and the limit frame slides with the rack.

[0007] Preferably, the feeding assembly comprises a feeding frame and an electric partition, the feeding port of the burr removal working cylinder is connected to the feeding frame, and an electric partition for controlling the opening and closing of the inner cavity channel of the feeding frame is arranged in the feeding frame.

[0008] Preferably, the angles between the feed port, the sandblasting chamber and the feed port provided on the burr removal working cylinder are 120 degrees.

[0009] Preferably, it also includes a circular ring, a protrusion, an arc-shaped cover plate, a rotating rod, a connecting frame, a T-bar and a spring. A circular ring is installed on the inner wall of the burr removal working cylinder penetrated by both ends of the rotating plate, and protrusions are provided on the lower parts of the two circular rings on the opposite sides. Two rotating rods are rotatably installed on the protruding block part of the rotating plate. The end of the rotating rod away from the rotating plate is connected to the arc-shaped cover plate, and the rotating rod near the rotating plate is connected to the connecting frame. A T-bar is slidably connected to the connecting frame, and a spring is wound around the T-bar to facilitate its resetting. The protrusion is squeezed and matched with the end of the T-bar away from the rotating rod so that the two arc-shaped cover plates are surrounded and block the opening of the rotating cylinder.

[0010] Preferably, an earphone shell collection frame is slidably arranged in the waste collection frame.

[0011] Preferably, it also includes a vibrating screening plate, a roller, a second cam, a third rotating rod and a second power component. Two inclined vibrating screening plates are rotatably installed on both sides of the waste collection frame. One vibrating screening plate is arranged directly below the lower feeding port of the waste collection frame. A roller is installed on the back of the vibrating screening plate. A third rotating rod is rotatably installed on the inner wall of the waste collection frame. The third rotating rod is arranged below the vibrating screening plate. A second cam that is squeezed with the roller is installed on the third rotating rod. The waste collection frame is provided with a second power component that drives the third rotating rod to rotate.

[0012] Preferably, it also includes a vertical rod, a horizontal plate and a second spring. A plurality of vertical rods are arranged on the back of the vibration screening plate, a horizontal plate is installed between two vertical rods, and a second spring is arranged between the horizontal plate and the vibration screening plate.

[0013] Preferably, it also includes an air duct and a filter frame, and the air duct and the filter frame are respectively installed on the other two inner walls of the waste collection frame, and the inner cavity of the filter frame is connected to the sand frame.

[0014] Preferably, an observation plate for conveniently observing the interior of the burr removal working cylinder is provided on the positive side wall of the burr removal working cylinder.

[0015] The beneficial effects of the present invention are as follows: 1. The cam 1 is driven to rotate by the first power component, and the cam 1 drives the rack to reciprocate in the left and right directions, and the rack drives the gear meshing therewith to rotate forward and reversely, thereby driving the stirring rack to rotate forward and reversely through the rotating rod 2, and the stirring rack reciprocates and stirs the earphone shell in the rotating drum in forward and reverse directions, and the sandblasting component performs sandblasting and deburring operation on the stirred earphone shell, thereby achieving the effect of efficiently and evenly deburring the earphone shell in the rotating drum.

[0016] 2. The second power assembly drives the rotating rod three and the cam two installed on the rotating rod three to rotate. The lowest point and the highest point of the cam two are squeezed and matched with the roller, so that the vibration screening plate vibrates up and down. The earphone shell on the vibration screening plate is thrown upward by the up and down vibration of the vibration screening plate. The air guide pipe separates the frost powder on the surface of the earphone shell and the plastic nylon sand for removing burrs from the earphone shell by blowing air, thereby further removing the burrs on the surface of the earphone shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of parts such as the abrasive frame, the waste collection frame, and the burr removal working cylinder of the present invention.

[0019] Figure 3 It is a schematic diagram of the installation structure of the feeding frame, the electric partition and the burr removal working cylinder of the present invention.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of components such as the inner cavity rotating plate, the circular ring and the rotating cylinder of the burr removal working cylinder of the present invention.

[0021] Figure 5 For the present invention Figure 4 A local enlarged schematic diagram of point A.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the first power component, cam 1, rack and limit frame and other parts of the present invention.

[0023] Figure 7 For the present invention Figure 6 The cross-sectional structural diagram of the rotating drum and the limiting frame.

[0024] Figure 8 It is a schematic diagram of the first cross-sectional structure of the waste collection frame of the present invention.

[0025] Fig. 9 It is a second cross-sectional structural schematic diagram of the waste collection frame of the present invention.

[0026] Fig.10 It is a three-dimensional structural schematic diagram of the burr removal working cylinder and the observation plate of the present invention.

[0027] The marks in the accompanying drawings are: 1-support frame, 2-abrasive frame, 3-waste collection frame, 31-earphone shell collection frame, 4-burr removal working cylinder, 5-rotating plate, 51-ring, 511-protrusion, 52-first power assembly, 6-rotating cylinder, 61-arc cover plate, 7-driving motor, 8-sandblasting assembly, 9-feeding frame, 10-electric partition, 11-rotating rod one, 111-connecting frame, 12-T-bar, 13-spring one, 14-cam one, 15-rack, 16-limiting frame, 17-rotating rod two, 18-stirring frame, 19-gear, 20-vibration screening plate, 21-drum, 22-cam two, 23-vertical rod, 24-horizontal plate, 25-spring two, 26-air duct, 27-filter frame, 28-rotating rod three, 29-second power assembly, 30-observation plate. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Embodiment: A plastic earphone shell freezing deburring device, such as Figure 1 , Figure 2 and Figure 3As shown, it includes a support frame 1, an abrasive frame 2, a waste collection frame 3, a burr removal working cylinder 4, a rotating plate 5, a rotating cylinder 6, a driving motor 7, a sandblasting assembly 8, a feeding assembly and a stirring assembly. The upper left and right sides of the cylindrical burr removal working cylinder 4 are respectively provided with a feeding port and a sandblasting chamber. The feeding port is provided with a feeding assembly connected thereto. The feeding assembly includes a feeding frame 9 and an electric partition 10. The feeding port of the burr removal working cylinder 4 is connected to the feeding frame 9. The feeding frame 9 is connected to the inner surface of the burr removal working cylinder 4. The feeding frame 9 is connected to the burr removal chamber, and an electric partition 10 for controlling the opening and closing of the inner cavity channel of the feeding frame 9 is provided in the feeding frame 9. The earphone shells in the burr removal working cylinder 4 are entered from the feeding frame 9 through the opening and closing of the electric partition 10, so that the earphone shells are transported in batches to the burr removal working cylinder 4 for frozen deburring. A sandblasting assembly 8 is provided in the sandblasting chamber on the upper right side of the burr removal working cylinder 4. The sandblasting assembly 8 includes a sandblasting impeller and a power element that drives the sandblasting impeller to rotate to spray sand onto the earphone shell and a power element that transports the sand A conveying pipe to the sandblasting chamber, a feed port is provided at the lower part of the burr removal working cylinder 4, the feed port is communicated with the waste collection frame 3, the waste collection frame 3 is installed on the upper part of the sand material frame 2, the angle between the feed port, the sandblasting chamber and the feed port provided on the burr removal working cylinder 4 is 120 degrees, the sand material frame 2 and the burr removal working cylinder 4 are both installed on the support frame 1, a rotating plate 5 is rotatably provided in the burr removal working cylinder 4, and a driving motor 7 for driving the rotating plate 5 to rotate is installed on the burr removal working cylinder 4, A rotating drum 6 is rotatably mounted on the rotating plate 5, and the rotating drum 6 is arranged in the inner cavity of the burr removal working cylinder 4. The device is also provided with a controller for controlling the opening and closing of the driving motor 7 and the rotation angle of the rotating plate 5. The rotating plate 5 is driven to rotate by the driving motor 7, so that the opening of the rotating drum 6 on the rotating plate 5 is rotated clockwise in sequence from the direction opposite to the feed port, the sandblasting chamber and the discharge port. The rotating plate 5 is provided with a stirring component for stirring the material in the rotating drum 6 to realize the sandblasting component 8 to efficiently and evenly remove burrs from the material.

[0030] like Figure 6 and Figure 7As shown, the stirring assembly includes a first power assembly 52, a cam 14, a rack 15, a limit frame 16, a rotating rod 17, a stirring frame 18 and a gear 19. The rotating plate 5 is provided with a first power assembly 52 that drives the rotating drum 6 to rotate. The first power assembly 52 includes a first motor and a transmission belt that transmits the power of the first motor to the rotating drum 6 to rotate the rotating drum 6. The output shaft of the power component in the first power assembly 52 passes through the end of the rotating plate 5 and is connected to the cam 14 through a connector. The cam 14 is rotatably connected to the rack 15 at one end away from the connection with the first power assembly 52. ​​A rotating rod 17 is rotatably provided in the rotating drum 6. The stirring frame 18 is installed on the rotating rod 17. The stirring frame 18 is arranged in the rotating drum 6. The stirring frame 1 8 is a three-pronged shaft connected to an oblique stirring plate through a rod-shaped member. The stirring plate is generally placed in the lower part of the inner cavity of the rotating drum 6. The stirring frame 18 is driven to rotate by the rotation of the rotating rod 17. The stirring plate on the stirring frame 18 stirs the earphone shell in the rotating drum 6, thereby facilitating the spraying operation of the sandblasting component 8 on the earphone shell, and realizing the function of efficiently and evenly removing the burrs on the earphone shell. The rotating rod 17 passes through the rotating drum 6 and the end of the rotating plate 5 in sequence and is connected to a gear 19. The gear 19 is meshed with the rack 15. A limit frame 16 is rotatably arranged on the rotating plate 5. The limit frame 16 surrounds the gear 19. The limit frame 16 and the rack 15 are slidably matched. The limit frame 16 limits the rack 15 so that the limit frame 16 remains in a state of meshing with the gear 19.

[0031] like Figure 4 and Figure 5 As shown, it also includes a ring 51, a protrusion 511, an arc-shaped cover plate 61, a rotating rod 11, a connecting frame 111, a T-shaped rod 12 and a spring 13. The inner wall of the burr removal working cylinder 4 penetrated by the two ends of the rotating plate 5 is installed with a ring 51, and the lower parts of the two rings 51 facing each other are provided with protrusions 511. The protrusions 511 are arranged on the opposite side of the arc line between the feed port and the sandblasting chamber. The convex part of the rotating plate 5 is rotatably installed with two rotating rods 11, and the end of the rotating rod 11 away from the rotating plate 5 is connected to the arc-shaped cover plate 61. The arc-shaped cover plate 61 A through groove is provided on it for the sand material sprayed by the sandblasting assembly 8 to pass through. A connecting frame 111 is connected to the rotating rod 11 near the rotating plate 5. A T-bar 12 is slidably connected to the connecting frame 111. A limiting ring is provided on the T-bar 12. A spring 13 is provided between the limiting ring and the convex block part of the rotating plate 5. The spring 13 is wound around the T-bar 12. A spring 13 is wound around the T-bar 12 to facilitate its reset. The protrusion 511 is squeezed and matched with the end of the T-bar 12 away from the rotating rod 11 so that the two arc-shaped cover plates 61 surround and block the opening of the rotating drum 6.

[0032] When the present device is used in practice, the plastic earphone shells are added into the loading frame 9, and the controller controls the electric partition 10 to intermittently block the unloading channel of the loading frame 9, thereby realizing the filling of the plastic earphone shells into the rotating drum 6 in batches; then, the controller controls the driving motor 7 to work, and the driving motor 7 drives the rotating plate 5 and the rotating drum 6 on the rotating plate 5 to rotate 120 degrees clockwise, thereby rotating the opening of the rotating drum 6 to a position directly opposite to the sandblasting chamber, so that the sandblasting assembly 8 in the sandblasting chamber can perform sandblasting and deburring operations on the earphone shells in the rotating drum 6. During the rotation of the rotating plate 5, the T-bar 12 gradually contacts with the protrusion 511 and squeezes and cooperates with the protrusion 511, and the spring 13 is compressed, thereby causing the T-bar 12 to drive the rotating rod 11 to rotate through the connecting frame 111. 90 degrees, so that the two rotating rods 11 drive the arc-shaped cover plate 61 installed thereon to rotate 90 degrees toward the center point of the rotating drum 6 with the rotating rod 11 as the center, so as to block the opening of the rotating drum 6, thereby preventing the earphone shell from splashing out of the rotating drum 6 when the sandblasting component 8 performs sandblasting and deburring operation on the earphone shell; at this time, while the sandblasting component 8 performs sandblasting and deburring operation on the earphone shell in the rotating drum 6, the first power component 52 drives the rotating drum 6 to rotate, and the rotating drum 6 drives the earphone shell inside it to rotate, thereby improving the efficiency of the sandblasting component 8 in sandblasting and deburring the earphone shell; at the same time, the power element in the first power component 52 drives the cam 14 to rotate, the cam 14 drives the rack 15 to move, and the rack 15 drives the limit frame 16 to rotate. In this process, Figure 6 For example: when the cam 14 rotates 90 degrees clockwise, the cam 14 drives the rack 15 to gradually move to the left, the rack 15 drives the limit frame 16 to rotate about 45 degrees clockwise, and the rack 15 drives the gear 19 to rotate counterclockwise; when the cam 14 rotates 180 degrees clockwise, the cam 14 drives the rack 15 to move to the left to the limit, the rack 15 drives the limit frame 16 to reset, and the rack 15 drives the gear 19 to continue to rotate counterclockwise to reset; when the cam 14 rotates 270 degrees clockwise, the cam 14 drives the rack 15 to move to the right, the rack 15 drives the limit frame 16 to rotate about 45 degrees counterclockwise, and the rack 15 drives the gear 19 to rotate counterclockwise. 9 rotates clockwise; when the cam 14 rotates 360 degrees clockwise, the cam 14 drives the rack 15 to move rightward to the limit, the rack 15 drives the limit frame 16 to reset, and the rack 15 drives the gear 19 to rotate clockwise to reset; this is repeated, and the gear 19 can drive the rotating rod 2 17 to reciprocate forward and reverse, and the rotating rod 2 17 drives the stirring frame 18 to reciprocate and stir the earphone shell in the rotating drum 6 in the forward and reverse directions, so that the sandblasting component 8 can fully and evenly sandblast and deburr the earphone shell in the rotating drum 6, avoiding the situation that some earphone shells cannot be sandblasted due to accumulation at the bottom of the inner cavity of the rotating drum 6, resulting in incomplete deburring.

[0033] like Figure 8 As shown, an earphone shell collecting frame 31 is slidably arranged in the waste collecting frame 3.

[0034] like Figure 8 and Fig. 9 As shown, it also includes a vibration screening plate 20, a roller 21, a cam 22, a rotating rod 3 28 and a second power assembly 29. Two inclined vibration screening plates 20 are rotatably installed on the left and right sides of the waste collection frame 3. The vibration screening plate 20 on the left is arranged directly below the discharge port of the waste collection frame 3. The earphone shell that has completed the frozen deburring operation falls onto the vibration screening plate 20 through the discharge port. A roller 21 is installed on the back of the vibration screening plate 20. A rotating rod 3 28 is rotatably installed on the inner wall of the waste collection frame 3. The rotating rod 3 28 is arranged below the vibration screening plate 20. A cam 22 is installed on 28 for extrusion cooperation with the roller 21. The highest point and the lowest point of the cam 22 are extruded and cooperated with the roller 21, so that the vibration screening plate 20 is thrown up and down, thereby achieving the effect of throwing the earphone shell on the vibration screening plate 20 up to make a parabolic motion. A second power assembly 29 for driving the rotating rod 3 28 to rotate is provided on the waste collection frame 3. The second power assembly 29 includes a driving member installed on the rear outer wall of the waste collection frame 3 and a synchronous belt for driving the two rotating rods 3 28 to rotate synchronously. The driving member is connected to the rear end of a rotating rod 3 28.

[0035] like Figure 8 As shown, it also includes a vertical rod 23, a horizontal plate 24 and a spring 25. A plurality of vertical rods 23 are arranged on the back of the vibration screening plate 20. A horizontal plate 24 is installed between the two vertical rods 23. The vertical rod 23 slides through the horizontal plate 24. Both ends of the horizontal plate 24 are connected to the inner wall of the waste collection frame 3. A spring 25 is arranged between the horizontal plate 24 and the vibration screening plate 20. The spring 25 is a reset spring. The initial state of the spring 25 is as shown in FIG. Figure 8 As shown, when the highest point of the cam 22 squeezes the roller 21, the vibration screening plate 20 moves upward, the spring 25 is stretched, and when the highest point of the cam 22 is away from the roller 21, the spring 25 is reset, and the vibration screening plate 20 moves downward and resets.

[0036] like Figure 8 As shown, it also includes an air duct 26 and a filter frame 27. The air duct 26 and the filter frame 27 are respectively installed on the other two inner walls of the waste collection frame 3. The inner cavity of the filter frame 27 is connected with the sand frame 2. The gas blown out by the air duct 26 will blow the nylon sand and frost powder on the earphone shell thrown upward away from the earphone shell, thereby removing the frost powder and nylon sand on the earphone shell.

[0037] After the earphone in the rotating drum 6 is deburred, the rotating plate 5 and the rotating drum 6 are driven by the driving motor 7 to rotate clockwise away from the sandblasting chamber on the burr removal working cylinder 4, and the T-bar 12 gradually moves away from the protrusion 511. Under the action of the elastic force of the spring 13, the spring 13 is reset, the T-bar 12 is reset, and the T-bar 12 drives the rotating rod 11 and the arc-shaped cover plate 61 to reset through the connecting frame 111. The arc-shaped cover plate 61 rotates away from the opening of the rotating drum 6, which facilitates the unloading of the earphone shell in the rotating drum 6; when the opening of the rotating drum 6 rotates to the top of the unloading port of the burr removal working cylinder 4, the earphone shell in the rotating drum 6 falls to the top. On the vibration screening plate 20 below the rotating drum 6, the second power assembly 29 drives the rotating rod three 28 to rotate, and the rotating rod three 28 drives the cam two 22 to rotate. The highest point and the lowest point of the cam two 22 are squeezed and contacted with the roller 21, so that the vibration screening plate 20 vibrates up and down, so that the earphone shell is thrown up on the vibration screening plate 20 to make a parabolic motion. At the same time, the air duct 26 separates the frost powder on the surface of the earphone shell and the plastic nylon sand for removing burrs from the earphone shell by blowing air, and the plastic nylon sand is transported to the sand frame 2 through the filter frame 27, thereby realizing the separation of the earphone shell and the nylon sand.

[0038] like Fig.10 As shown, an observation plate 30 for conveniently observing the interior of the burr removal working cylinder 4 is provided on the positive side wall of the burr removal working cylinder 4 .

[0039] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A plastic earphone shell freezing deburring device, comprising a sand material frame (2), a waste material collection frame (3), a burr removal working cylinder (4), a sandblasting assembly (8) and a feeding assembly, wherein the upper two sides of the burr removal working cylinder (4) are respectively provided with a feed port and a sandblasting chamber, the feed port is provided with a feeding assembly connected thereto, the sandblasting chamber is provided with a sandblasting assembly (8), the lower part of the burr removal working cylinder (4) is provided with a discharge port, the discharge port is connected with the waste material collection frame (3), the waste collection frame (3) is installed on the upper part of the sand material frame (2), characterized in that: The invention also comprises a rotating plate (5), a rotating drum (6) and a stirring assembly. A rotating plate (5) is rotatably arranged in the burr removal working drum (4), a rotating drum (6) is rotatably mounted on the rotating plate (5), and a stirring assembly is arranged on the rotating plate (5) for stirring the material in the rotating drum (6) so as to enable the sandblasting assembly (8) to efficiently and evenly remove burrs from the material.

2. A plastic earphone shell freezing deburring device according to claim 1, characterized in that: The stirring assembly comprises a first power assembly (52), a cam 1 (14), a rack (15), a limit frame (16), a rotating rod 2 (17), a stirring frame (18) and a gear (19); the rotating plate (5) is provided with a first power assembly (52) for driving the rotating drum (6) to rotate; the output shaft of the power component in the first power assembly (52) passes through the end of the rotating plate (5) and is connected to the cam 1 (14); the cam 1 (14) is rotatably connected to the rack (15); A second rotating rod (17) is rotatably arranged in the drum (6), a stirring frame (18) is installed on the second rotating rod (17), the stirring frame (18) is arranged in the rotating drum (6), the second rotating rod (17) sequentially penetrates the rotating drum (6) and the end of the rotating plate (5) is connected with a gear (19), the gear (19) is meshed with the rack (15), a limiting frame (16) is rotatably arranged on the rotating plate (5), the limiting frame (16) surrounds the gear (19), and the limiting frame (16) and the rack (15) are slidably matched.

3. The plastic earphone shell freezing deburring device according to claim 1, characterized in that: The feeding assembly comprises a feeding frame (9) and an electric partition (10); the feeding port of the burr removal working cylinder (4) is connected to the feeding frame (9); and the feeding frame (9) is provided with an electric partition (10) for controlling the opening and closing of the inner cavity channel of the feeding frame (9).

4. The plastic earphone shell freezing deburring device according to claim 1, characterized in that: The included angles between the feed port, the sandblasting chamber and the feed port arranged on the burr removal working cylinder (4) are 120 degrees.

5. The plastic earphone shell freezing deburring device according to claim 1, characterized in that: The invention also comprises a circular ring (51), a protrusion (511), an arc-shaped cover plate (61), a rotating rod (11), a connecting frame (111), a T-shaped rod (12) and a spring (13). The circular ring (51) is installed on the inner wall of the burr removal working cylinder (4) penetrated by the two ends of the rotating plate (5). The lower parts of the two circular rings (51) facing each other are both provided with protrusions (511). The protrusion part of the rotating plate (5) is rotatably installed with two rotating rods (11). The rotating rod (11) An arc-shaped cover plate (61) is connected to the end away from the rotating plate (5); a connecting frame (111) is connected to the rotating rod (11) near the rotating plate (5); a T-shaped rod (12) is slidably connected to the connecting frame (111); a spring (13) is wound around the T-shaped rod (12) to facilitate its reset; the protrusion (511) is pressed and matched with the end of the T-shaped rod (12) away from the rotating rod (11) so that the two arc-shaped cover plates (61) surround and block the opening of the rotating drum (6).

6. The plastic earphone shell freezing deburring device according to claim 1, characterized in that: An earphone shell collecting frame (31) is slidably arranged inside the waste collecting frame (3).

7. The device for freezing and deburring a plastic earphone shell according to claim 1, characterized in that: The waste collecting frame (3) further comprises a vibration screening plate (20), a roller (21), a second cam (22), a third rotating rod (28) and a second power assembly (29). Two inclined vibration screening plates (20) are rotatably mounted on both sides of the waste collecting frame (3) in a staggered manner. One vibration screening plate (20) is arranged directly below the discharge port of the waste collecting frame (3). A roller (21) is mounted on the back of the vibration screening plate (20). A third rotating rod (28) is rotatably mounted on the inner wall of the waste collecting frame (3). The third rotating rod (28) is arranged below the vibration screening plate (20). A second cam (22) which is pressed and matched with the roller (21) is mounted on the third rotating rod (28). A second power assembly (29) which drives the third rotating rod (28) to rotate is arranged on the waste collecting frame (3).

8. The device for freezing and deburring a plastic earphone shell according to claim 7, characterized in that: The invention also comprises a vertical rod (23), a horizontal plate (24) and a second spring (25). The back of the vibration screening plate (20) is provided with a plurality of vertical rods (23), a horizontal plate (24) is installed between two vertical rods (23), and a second spring (25) is provided between the horizontal plate (24) and the vibration screening plate (20).

9. The device for freezing and deburring a plastic earphone shell according to claim 7, characterized in that: It also comprises an air guide pipe (26) and a filter frame (27). The other two inner walls of the waste collection frame (3) are respectively provided with the air guide pipe (26) and the filter frame (27). The inner cavity of the filter frame (27) is communicated with the sand material frame (2).

10. The plastic earphone shell freezing deburring device according to claim 1, characterized in that: An observation plate (30) for conveniently observing the interior of the burr removal working cylinder (4) is arranged on the positive side wall of the burr removal working cylinder (4).

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