Automatic polishing equipment for packaging shell

Abstract

The automatic polishing equipment comprises a conveying belt, a conveying channel is arranged above the conveying belt, rotating assemblies and clamping assemblies driven by the rotating assemblies are arranged on the upper side and the lower side of the conveying channel correspondingly, each clamping assembly comprises a clamping plate used for clamping the packaging shell, a rotating assembly is arranged on each clamping plate, and the rotating assemblies are arranged on the clamping plates. A centering assembly is arranged on the conveying channel, a first polishing disc and a second polishing disc are arranged on one side of the centering assembly, the rotating assembly is used for driving a clamping plate to rotate, and the clamping assembly clamps a packaging shell through the clamping plate. The centering assembly is used for centering the packaging shell and then polishing the two sides of the packaging shell through the first polishing disc, the rotating assembly is used for driving the packaging shell to rotate by 90 degrees and then polishing the other two sides of the packaging shell through the second polishing disc, and it is guaranteed that the packaging shell is always in the centering position during polishing. And the situation that the polishing effect is poor due to deviation in the conveying process is prevented.

Description

Technical Field

[0001] The present invention relates to the field of electronic packaging, and more specifically, to an automatic polishing device for a packaging shell. Background Art

[0002] The packaging forms of chips include ceramic packaging, plastic packaging, and metal packaging, which play roles such as installing, fixing, and protecting chips. Among them, the metal packaging shell needs to be polished during production, with burr removal and grinding and polishing on the four sides. Currently, most polishing methods require manual flipping of the packaging shell and multiple direction changes, greatly reducing the polishing efficiency.

[0003] A Chinese patent with the publication number CN117798802B discloses a polishing device for a metal packaging shell, including a machine body. A sliding table is installed on the machine body, and two groups of polishing arms are provided on the sliding table. A polishing disc is provided on the polishing arm, and an operating table is provided between the polishing discs. A grinding area is installed inside the operating table, and multiple groups of placement openings are opened in the grinding area. Two groups of first clamping blocks and two groups of second clamping blocks are symmetrically arranged inside the placement openings. The first clamping assembly and the second clamping assembly are connected through a flipping assembly, and the flipping assembly can control the packaging shell to perform horizontal flipping motion and vertical flipping motion inside the placement opening. By controlling the clamping timing of the first clamping block and the second clamping block with the packaging shell, not only can the upper and lower surfaces of the packaging shell be ground and polished, but also the four sides and the four edges of the packaging shell can be ground and polished. Although this polishing device solves the problem of manual direction change, it is time-consuming and laborious to take and place the packaging shell inside the placement opening, and at the same time, it cannot achieve a continuous polishing effect, with poor practicability. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art by providing an automatic polishing device for a packaging shell. When the conveyor belt transports the packaging shell, the rotary assembly drives the clamping plates on the upper and lower sides to clamp the packaging shell. After centering the packaging shell through the centering assembly, side polishing is performed. Then, the rotating assembly drives the packaging shell to rotate by 90° and polish the other two sides, achieving a continuous polishing effect. At the same time, it ensures that the packaging shell is always in the centered position during polishing, preventing poor polishing effects caused by deviation during transportation.

[0005] The technical solution measures of the present invention are as follows:

[0006] An automatic polishing device for a packaging shell, comprising a conveyor belt, a conveying channel is arranged above the conveyor belt, rotary components are arranged on both the upper and lower sides of the conveying channel and clamping components driven by the rotary components. The clamping components include clamping plates for clamping the packaging shell, a rotating component is arranged on the clamping plates, a centering component is arranged on the conveying channel, a first polishing disc and a second polishing disc are arranged on one side of the centering component. The rotary component is used to drive the clamping plate to rotate, the clamping component clamps the packaging shell through the clamping plate, the centering component is used to center the packaging shell and then polish both sides of the packaging shell through the first polishing disc, and the rotating component is used to drive the packaging shell to rotate by 90° and then polish the other two sides of the packaging shell through the second polishing disc.

[0007] As a preference, a single group of the rotary components includes a bottom plate fixedly arranged on the conveying channel, a motor fixedly arranged on the bottom plate, first gears rotatably arranged on both sides of the bottom plate, a synchronous belt sleeved between the first gears, a guide rail fixedly arranged on the bottom plate, a sliding carriage slidably arranged on the guide rail, a traction block fixedly arranged on the synchronous belt, and a sliding rod slidably arranged on the sliding carriage. The output shaft of the motor is fixedly connected to one side of the first gear, and the sliding carriage is hingedly connected to the traction block.

[0008] As a preference, a single group of the clamping components further includes a track fixedly arranged on the bottom plate, a track groove opened on the track, a slider fixedly arranged on the sliding rod, a fixed seat fixedly arranged on the sliding rod, a sliding block slidably arranged in the fixed seat, a fixed rod fixedly arranged on the sliding block, a clamping rod fixedly arranged on the clamping plate, and an empty groove opened in the clamping rod. The fixed rod is matched with the empty groove, the clamping plate is fixedly connected to the clamping rod, and the slider is matched with the track groove.

[0009] As a preference, the centering component includes connecting rods slidably arranged on both sides of the conveying channel, fixing plates fixedly connected to both ends of the connecting rods, a plurality of rollers rotatably arranged on the fixing plates, and a cylinder fixedly arranged on the conveying channel. The output shaft of the cylinder is fixedly connected to the connecting rod.

[0010] As a preference, the rotating component includes a second gear fixedly arranged on the clamping rod and a rack fixedly arranged on the conveying channel. The second gear meshes with the rack.

[0011] As a preference, the two tracks are symmetrically arranged and the track groove is composed of a rising section and a falling section.

[0012] As a preference, a servo motor is fixedly arranged on the conveying channel and the output shaft of the servo motor is connected to the first polishing disc. Pulley wheels are arranged on both the first polishing disc and the second polishing disc, and a belt is arranged between the pulley wheels.

[0013] As a preference, an anti-slip pad is provided on the clamping plate.

[0014] As a preference, a rubber layer is provided on the roller.

[0015] The beneficial effects of the present invention are as follows

[0016] 1. The present invention is provided with a rotary assembly and a clamping assembly. The packaging shell is lifted and clamped by the rotary clamping plate, which facilitates subsequent centering, polishing and rotation, realizes continuous operation, and improves the polishing efficiency.

[0017] 2. The present invention is also provided with a rotating assembly and a centering assembly. The packaging shell is centered by the roller, so that the packaging shell is always in a centered state, improving the polishing effect. At the same time, the roller is in a rotating state when centering, which can prevent the roller from damaging the packaging shell. The packaging shell is driven by the second gear and the rack to rotate 90°, so that the packaging shell automatically changes its direction, and all four sides are polished, improving the polishing effect and solving the problem of slow polishing efficiency caused by manual direction change.

[0018] In summary, the present invention has the advantages of high polishing efficiency and good polishing effect, and is suitable for the field of electronic packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the drawings:

[0020] Figure 1 is a schematic structural diagram of an automatic polishing device for a packaging shell;

[0021] Figure 2 is a schematic structural diagram of the clamping assembly;

[0022] Figure 3 is a schematic structural diagram of the rotary assembly and the rotating assembly;

[0023] Figure 4 is a schematic structural diagram of the centering assembly;

[0024] Figure 5 is a schematic structural diagram of the conveyor belt;

[0025] Figure 6 is a schematic structural diagram of the fixed rod;

[0026] Figure 7 is a schematic diagram of the state when the clamping plate lifts and clamps the packaging shell;

[0027] Figure 8 is a schematic diagram of the state when the roller drives the packaging shell and the sliding block to move and center;

[0028] Figure 9 Schematic diagram of the state when the roller drives the encapsulation shell and the clamping plate to rotate and align;

[0029] Figure 10 Schematic diagram of the state when the first polishing disc and the second polishing disc are polishing;

[0030] Figure 11 Schematic diagram of the state when the second gear drives the encapsulation shell to rotate when passing through the rack;

[0031] Figure 12 Schematic diagram of the state when the encapsulation shell falls on the conveyor belt after polishing is completed;

[0032] Reference numerals: 1 conveyor belt, 2 conveying channel, 3 rotating assembly, 31 bottom plate, 32 motor, 33 first gear, 34 synchronous belt, 35 guide rail, 36 sliding carriage, 37 traction block, 38 sliding rod, 4 clamping assembly, 41 clamping plate, 42 track, 43 track groove, 44 slider, 45 fixed seat, 46 sliding block, 47 fixed rod, 48 clamping rod, 49 empty slot, 5 encapsulation shell, 6 rotating assembly, 61 second gear, 62 rack, 7 centering assembly, 71 connecting rod, 72 fixing plate, 73 roller, 74 cylinder, 8 first polishing disc, 9 second polishing disc, 10 rising section, 11 falling section, 12 servo motor. Specific embodiments

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0034] Embodiment 1

[0035] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0036] As Figures 1 to 12As shown in the figure, an automatic polishing device for a packaging shell includes a conveyor belt 1. Above the conveyor belt 1, there is a conveying channel 2. On both the upper and lower sides of the conveying channel 2, there are rotary components 3 and clamping components 4 driven by the rotary components 3. A single set of clamping components 4 includes a clamping plate 41 for clamping the packaging shell 5. On the clamping plate 41, there is a rotating component 6. On the conveying channel 2, there is a centering component 7. On one side of the centering component 7, there are a first polishing disc 8 and a second polishing disc 9. The rotary component 3 is used to drive the clamping plate 41 to rotate. The clamping component 4 clamps the packaging shell 5 through the clamping plate 41. The centering component 7 is used to center the packaging shell 5 and then polish both sides of the packaging shell 5 through the first polishing disc 8. The rotating component 6 is used to drive the packaging shell 5 to rotate by 90° and then polish the other two sides of the packaging shell 5 through the second polishing disc 9. Among them, the packaging shell 5 on the conveyor belt 1 is placed manually or by a manipulator. During the transmission process, the packaging shell 5 may be placed offset or deflected. Therefore, the clamping plates 41 on both the upper and lower sides clamp it one by one and then center it to ensure its polishing efficiency and achieve continuous operation.

[0037] It is worth mentioning that, as Figure 3 shown, a single set of rotary components 3 includes a bottom plate 31 fixedly arranged on the conveying channel 2, a motor 32 fixedly arranged on the bottom plate 31, first gears 33 rotatably arranged on both sides of the bottom plate 31, a synchronous belt 34 sleeved between the first gears 33, a guide rail 35 fixedly arranged on the bottom plate 31, a sliding carriage 36 slidably arranged on the guide rail 35, a traction block 37 fixedly arranged on the synchronous belt 34, and a sliding rod 38 slidably arranged on the sliding carriage 36. The output shaft of the motor 32 is fixedly connected to one side of the first gear 33. The sliding carriage 36 is hinged to the traction block 37. When in use, the motor 32 drives the first gear 33 to rotate, drives the synchronous belt 34 and the first gear 33 on the other side to rotate, drives the sliding carriage 36 to slide on the guide rail 35, thereby driving the clamping plate 41 to rotate, and enabling the clamping plate 41 to clamp the packaging shells 5 transmitted on the conveyor belt 1 one by one.

[0038] In addition, as Figure 3 and Figure 7As shown, the single-group clamping assembly 4 further includes a track 42 fixedly arranged on the bottom plate 31, a track groove 43 formed in the track 42, a slider 44 fixedly arranged on the sliding rod 38, a fixed seat 45 fixedly arranged on the sliding rod 38, a sliding block 46 slidably arranged in the fixed seat 45, a fixed rod 47 fixedly arranged on the sliding block 46, a clamping rod 48 fixedly arranged on the clamping plate 41, and an empty groove 49 formed in the clamping rod 48. The fixed rod 47 is matched with the empty groove 49, and the slider 44 is matched with the track groove 43. Among them, the length of the lower sliding rod 38 is greater than that of the upper sliding rod 38, which is convenient for lifting the encapsulation shell 5 for polishing and rotation. During use, when the encapsulation shell 5 is being transported, the sliding vehicle 36 drives the sliding rod 38 to slide in the track groove 43. When the upper sliding rod 38 passes through the descending section 11, the lower sliding rod 38 passes through the ascending section 10. While the lower clamping plate 41 lifts the encapsulation shell 5, the upper clamping plate 41 contacts the encapsulation shell 5, and the two clamping plates 41 clamp the encapsulation shell 5, which is convenient for subsequent polishing and rotation.

[0039] It should be emphasized that as Figures 4 to 9As shown in the figure, the centering assembly 7 includes connecting rods 71 slidably arranged on both sides of the conveying channel 2, fixing plates 72 fixedly connected to both ends of the connecting rods 71, a plurality of rollers 73 rotatably arranged on the fixing plates 72, and a cylinder 74 fixedly arranged on the conveying channel 2. The output shaft of the cylinder 74 is fixedly connected to the connecting rod 71. Among them, a driving device is arranged on the fixing plate 72 and the output shaft is connected to one end roller 73. When the driving device drives one side roller 73 to rotate, since the rollers are in contact with each other, all the rollers 73 can be driven to rotate. During use, when the clamping plate 41 clamps the encapsulation shell 5, during the subsequent transmission process, the encapsulation shell passes through the rollers 73. The cylinder 74 drives the rollers 73 on the opposite side to approach each other, and the encapsulation shell 5 whose position has shifted on the conveyor belt 1 and is not in the exact middle of the conveyor belt 1 is centered. During centering, the rollers 73 drive the encapsulation shell 5 and the clamping plate 41 to move, driving the sliding block 46 to slide within the fixed seat 45 until it moves to the middle of the conveyor belt 1, and the encapsulation shell 5 and the clamping plate 41 are in a relatively stationary state; when the encapsulation shell 5 is placed in the middle of the conveyor belt 1 but its angle is deflected and it is inclined on the conveyor belt 1, when the rollers 73 center the encapsulation shell 5, the encapsulation shell 5 drives the clamping plate 41 and the clamping rod 48 to rotate along the fixed rod 47. At this time, the encapsulation shell 5 and the clamping plate 41 are still in a relatively stationary state. In addition, when the encapsulation shell 5 is centered, it can drive the clamping plate 41 to rotate and at the same time drive the sliding block 46 to slide, and the two do not interfere with each other, ensuring that the encapsulation shell 5 is always in a centered state during transmission, facilitating subsequent polishing and improving the polishing effect. When the encapsulation shell 5 is centered and passes through the first polishing disc 8, both sides are polished. During the polishing process, since the two first polishing discs 8 on both sides polish the sides simultaneously, the encapsulation shell 5 will not deflect during polishing. In addition, when the rollers 73 on the opposite side center the encapsulation shell 5, since the rollers 73 are in a rotating state, it can prevent the rollers 73 from damaging the encapsulation shell 5, and the rollers 73 can drive the encapsulation shell 5 to be conveyed forward, reducing the friction between the two.

[0040] It should be further noted that, such as Figure 11 and Figure 12As shown in the figure, the rotating assembly 6 includes a second gear 61 fixedly arranged on the clamping rod 48 and a rack 62 fixedly arranged on the conveying channel 2. The second gear 61 meshes with the rack 62. During use, when both sides of the encapsulation housing 5 are polished and continue to be conveyed, the second gear 61 passes by the rack 62, driving the second gear 61, the clamping rod 48, the clamping plate 41 and the encapsulation housing 5 to rotate by 90°, so that the other two unpolished sides face the second polishing disc 9. Subsequently, the encapsulation housing 5 enters the second set of rollers 73. The first set of rollers 73 and the second set of rollers 73 slide simultaneously to center the encapsulation housing 5 with one unpolished side and one polished side respectively, improving the centering efficiency. Subsequently, the encapsulation housing 5 passes by the second polishing disc 9 for polishing. At this time, all four sides of the encapsulation housing 5 are polished. The upper sliding rod 38 and the lower sliding rod 38 respectively enter the ascending section 10 and the descending section 11, driving the two clamping plates 41 to disengage from the encapsulation housing 5 while the lower clamping plate 41 takes the encapsulation housing 5 to continue to be conveyed on the conveyor belt 1, so as to enter the next process, achieving the effect of automatically changing the direction of the encapsulation housing 5.

[0041] It is worth mentioning that, as Figure 2 shown, the two side tracks 42 are symmetrically arranged and the track groove 43 is composed of an ascending section 10 and a descending section 11 to clamp or release the encapsulation housing 5.

[0042] Furthermore, as Figure 2 shown, a servo motor 12 is fixedly arranged on the conveying channel 2 and the output shaft of the servo motor 12 is connected to the first polishing disc 8. Pulley wheels are arranged on both the first polishing disc 8 and the second polishing disc 9 and a belt is arranged between the pulley wheels. The servo motor 12 drives the first polishing disc 8 and the second polishing disc 9 to rotate for polishing. Among them, both the first polishing disc 8 and the second polishing disc 9 rotate through bearings, and the first polishing disc 8 and the second polishing disc 9 rotate simultaneously to improve the polishing effect.

[0043] In addition, as Figure 8 and Figure 9 shown, an anti-slip pad is arranged on the clamping plate 41. The anti-slip pad increases the resistance between the clamping plate 41 and the encapsulation housing 5, improving the stability without damaging the encapsulation housing 5, ensuring that the clamping plate 5 can be driven to move and rotate when the encapsulation housing 5 is centered.

[0044] As Figure 8 shown, a rubber layer is arranged on the roller 73 to prevent damage to the encapsulation housing 5 and play a buffering effect when the roller 73 contacts the encapsulation housing 5.

[0045] Working process

[0046] The encapsulation housing 5 on the conveyor belt 1 is placed manually or by a manipulator. Meanwhile, the sliding carriage 36 drives the sliding rod 38 to slide within the track groove 43. When the upper sliding rod 38 passes through the descending section 11, the lower sliding rod 38 passes through the ascending section 10. While the lower clamping plate 41 jacks up the encapsulation housing 5, the upper clamping plate 41 comes into contact with the encapsulation housing 5. The two side clamping plates 41 clamp the encapsulation housing 5. Subsequently, the encapsulation housing 5 passes through the roller 73. The air cylinder 74 drives the rollers 73 on the opposite sides to approach each other, centering the encapsulation housing 5 that has shifted in position on the conveyor belt 1 and is not in the exact middle of the conveyor belt 1. During centering, the roller 73 drives the encapsulation housing 5 and the clamping plate 41 to move, driving the sliding block 46 to slide within the fixed seat 45 until it moves to the middle of the conveyor belt 1. When the encapsulation housing 5 is placed in the middle of the conveyor belt 1 but its angle is deflected and it is inclined on the conveyor belt 1, when the roller 73 centers the encapsulation housing 5, the encapsulation housing 5 drives the clamping plate 41 and the clamping rod 48 to rotate along the fixed rod 47. In addition, when the encapsulation housing 5 is being centered, it can drive the clamping plate 41 to rotate while driving the sliding block 46 to slide, and the two do not interfere with each other. After the encapsulation housing 5 is centered, when it passes through the first polishing disc 8, its two sides are polished. Subsequently, during continuous conveyance, the second gear 61 passes over the rack 62, driving the second gear 61, the clamping rod 48, the clamping plate 41, and the encapsulation housing 5 to rotate by 90°, causing the other two unpolished sides to face the second polishing disc 9. The encapsulation housing 5 enters the second group of rollers 73. The first group of rollers 73 and the second group of rollers 73 slide simultaneously, respectively centering the encapsulation housing 5 with one unpolished side and one polished side, improving the centering efficiency. Subsequently, the encapsulation housing 5 passes through the second polishing disc 9 for polishing. At this time, all four sides of the encapsulation housing 5 are polished. The upper sliding rod 38 and the lower sliding rod 38 respectively enter the ascending section 10 and the descending section 11, driving the two clamping plates 41 to disengage from the encapsulation housing 5 while the lower clamping plate 41 takes the encapsulation housing 5 to continue to be conveyed on the conveyor belt 1 so as to enter the next process, achieving the effect of automatically changing the direction of the encapsulation housing 5.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "front and back", "left and right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the invention.

[0048] Certainly, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be construed as a limitation to the number.

[0049] The above-described in conjunction with the accompanying drawings is only the preferred embodiment of the present invention, but the present invention is not limited to the above embodiments. It should be noted that for those skilled in the art, various modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the protection scope of the present invention, and will not affect the implementation effect and practicality of the present invention.

Claims

1. An automatic polishing device for a package shell, comprising a conveyor belt (1), characterized in that: A conveying channel (2) is arranged above the conveying belt (1), and a rotating assembly (3) and a clamping assembly (4) driven by the rotating assembly (3) are arranged on both upper and lower sides of the conveying channel (2), and a single group of the clamping assembly (4) comprises a clamping plate (41) for clamping the packaging shell (5), and a rotating assembly (6) is arranged on the clamping plate (41). A centering assembly (7) is arranged on the conveying channel (2), and a first polishing disc (8) and a second polishing disc (9) are arranged on one side of the centering assembly (7). The invention relates to a polishing disc (9), wherein the rotating assembly (3) is used to drive the clamping plate (41) to rotate, the clamping assembly (4) clamps the packaging shell (5) through the clamping plate (41), the centering assembly (7) is used to center the packaging shell (5) and then polish both sides of the packaging shell (5) through the first polishing disc (8), and the rotating assembly (6) is used to drive the packaging shell (5) to rotate 90 degrees and then polish the other two sides of the packaging shell (5) through the second polishing disc (9).

2. The automatic polishing device for a package shell according to claim 1, characterized in that: A single set of the rotary assembly (3) comprises a base plate (31) fixedly arranged on the conveying channel (2), a motor (32) fixedly arranged on the base plate (31), first gears (33) rotatably arranged on both sides of the base plate (31), a synchronous belt (34) sleeved between the first gears (33), a guide rail (35) fixedly arranged on the base plate (31), a sliding vehicle (36) slidably arranged on the guide rail (35), a traction block (37) fixedly arranged on the synchronous belt (34), and a sliding rod (38) slidably arranged on the sliding vehicle (36), wherein the output shaft of the motor (32) is fixedly connected to the first gear (33) on one side, and the sliding vehicle (36) is hingedly connected to the traction block (37).

3. The automatic polishing device for a package shell according to claim 2, characterized in that: The single group of the clamping assembly (4) further comprises a track (42) fixedly arranged on the bottom plate (31), a track groove (43) provided on the track (42), a slider (44) fixedly arranged on the sliding rod (38), a fixed seat (45) fixedly arranged on the sliding rod (38), a sliding block (46) slidably arranged in the fixed seat (45), a fixed rod (47) fixedly arranged on the sliding block (46), a clamping rod (48) fixedly arranged on the clamping plate (41), and an empty groove (49) provided in the clamping rod (48), wherein the fixed rod (47) cooperates with the empty groove (49), and the slider (44) cooperates with the track groove (43).

4. The automatic polishing device for a package shell according to claim 1, characterized in that: The centering assembly (7) comprises a connecting rod (71) slidably arranged on both sides of the conveying channel (2), a fixing plate (72) fixedly connected to both ends of the connecting rod (71), a plurality of rollers (73) rotatably arranged on the fixing plate (72), and a cylinder (74) fixedly arranged on the conveying channel (2), wherein the output shaft of the cylinder (74) is fixedly connected to the connecting rod (71).

5. The automatic polishing device for a package shell according to claim 3, characterized in that: The rotating assembly (6) comprises a second gear (61) fixedly arranged on the clamping rod (48) and a rack (62) fixedly arranged on the conveying channel (2), and the second gear (61) is meshed with the rack (62).

6. The automatic polishing device for a package shell according to claim 3, characterized in that: The tracks (42) on both sides are symmetrically arranged and the track groove (43) consists of an ascending section (10) and a descending section (11).

7. The automatic polishing device for a package shell according to claim 1, characterized in that: A servo motor (12) is fixedly arranged on the conveying channel (2), and the output shaft of the servo motor (12) is connected to the first polishing disc (8), and pulleys are arranged on the first polishing disc (8) and the second polishing disc (9), and a belt is arranged between the pulleys.

8. The automatic polishing device for a package shell according to claim 1, characterized in that: The clamping plate (41) is provided with an anti-slip pad.

9. The automatic polishing device for a package shell according to claim 4, characterized in that: The roller (73) is provided with a rubber layer.

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