A self-rotating burr grinding mechanism for plastic cup production

Abstract

The invention discloses a self-rotating burr grinding mechanism for plastic cup production, which relates to the technical field of grinding, and comprises a driving source and a mounting shell, wherein the driving source is arranged in the mounting shell, the driving source can drive a telescopic component to be telescopic, the driving source can drive a rotating component to be rotated, the telescopic component can drive the rotating component to be telescopic when being telescoped, an adsorption and fixing component is arranged on the rotating component, the rotating component can drive the adsorption and fixing component to move synchronously when moving, the adsorption and fixing component can drive the clamping component to move along the length direction of the rotating component when moving, the clamping component can drive the grinding component to move when moving, and the grinding component can grind the cup when moving, and the matching arrangement of the grinding component and the clamping component enables the grinding component to deburr the plastic cup with an inclined cup wall without affecting the movement of the plastic cup.

Description

Technical Field

[0001] The invention relates to the technical field of deburring, in particular to a self-rotating burr grinding mechanism for producing plastic cups. Background Art

[0002] In the processing of existing plastic cups, the plastic embryo needs to be blow-molded and heated to form the cup body to form the desired shape. The processed cup has excess raw materials, so the excess part of the cup needs to be cut. The cup body and the cup mouth after cutting are not smooth enough. If used directly, the burrs on the cup mouth may cut the user's lips. Therefore, the mouth of the plastic cup needs to be polished to achieve the effect of safety.

[0003] After searching the publication number: CN220463314U, a plastic product deburring device comprises a device table, a fixture table, a rear motor machine table and a rubber cushion layer, a slideway is provided in the front and rear directions of the middle position of the upper surface of the device table, a slide rail is provided in the slideway, a fixture table is provided on the upper surface of the slide rail, a rear motor machine table is provided on the rear side surface of the left end of the device table, the rear motor machine table is an L-shaped structure, a motor is provided on the inner side surface of the rear motor machine table, and a grinding disc is provided at the front end of the motor. Compared with the prior art, the utility model has the following beneficial effects: by adding a slide rail under the fixture table and arranging grinding discs at the front and back of the fixture table, the deburring work of the upper and lower ends of the plastic cup can be completed by a clamping operation, thereby achieving the effect of easy operation and improved efficiency, and by setting the fixture as a semicircular structure and adding an easily replaceable rubber cushion layer, the fixture can clamp the plastic cup, thereby achieving the effect of improving the product qualification rate;

[0004] However, with the current grinding process for plastic cups, when facing a plastic cup body with an inclined cup wall, it is necessary to grind the cup mouth and the cup wall separately. At this time, the grinding process is complicated, which makes the grinding time longer and affects the burr removal efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a self-rotating burr grinding mechanism for producing plastic cups to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: comprising a mounting shell, characterized in that a telescopic component is arranged in the mounting shell, a rotating component is arranged on the telescopic component, an adsorption fixing component capable of adsorbing a plastic cup is connected to the rotating component, a clamping component is sleeved on the adsorption fixing component, and a grinding component is also arranged on the mounting shell, the telescopic component can drive the grinding component to contact with the wall and the mouth of the plastic cup when moving, and the rotating component drives the plastic cup to rotate and grind between the grinding component when moving;

[0007] When the telescopic assembly moves, the movement of the telescopic rod in the polishing assembly can be driven by the movement of the clamping assembly, so that the limit rod moves synchronously, driving the polishing block to move synchronously. The polishing block is tilted, and a right-angle block is provided on the polishing block. When the limit rod moves, the height changes under the action of the guide rail, so that the polishing block can move down to contact the outer wall of the plastic cup, and at the same time drive the right-angle block to move down and contact the mouth of the plastic cup.

[0008] Furthermore, a driving source is arranged in the mounting shell, and the telescopic assembly includes a threaded column fixedly connected to the output end of the driving source, and a threaded sleeve is threadedly connected to the end of the threaded column away from the driving source, and the threaded sleeve is slidably connected to a fixed shell, and the fixed shell is fixedly connected to the mounting shell.

[0009] Furthermore, the rotating assembly includes a sleeve shell rotatably connected to the mounting shell, the sleeve shell is sleeved on the outside of the fixed shell, one end of the sleeve shell is slidably connected to a driven shell, the driven shell is sleeved on the outside of the threaded sleeve, the driven shell is rotatably connected to the threaded sleeve, the sleeve shell is sleeved on the outside of a first gear ring, the rotating assembly also includes a ratchet unit sleeved on the output end of the driving source, the ratchet unit is sleeved on the outside of a second gear ring, and the second gear ring is rotatably connected to the driving source via a connecting member.

[0010] Furthermore, the second gear ring is provided with two slots, and the rotating assembly also includes two telescopic members arranged on the driving source, and the two telescopic members are respectively provided with two card blocks in a one-to-one correspondence, and the two card blocks respectively correspond to the positions of the two slots in a one-to-one correspondence.

[0011] Furthermore, the second gear ring is meshed with the first gear, one end of a transmission rod is fixedly connected to the side of the first gear, the other end of the transmission rod is fixedly connected to the second gear, the second gear is meshed with the first gear ring, the transmission rod is rotatably connected to a limit member, and the limit member is fixedly connected to the inside of the mounting shell.

[0012] Furthermore, the adsorption and fixing component also includes an air pump fixedly connected to the driven shell, a first air pipe is arranged on the output end of the air pump, a first suction cup is arranged on the end of the first air pipe away from the air pump, a plurality of second air pipes are fixedly connected to the first air pipe, and a plurality of second suction cups are respectively arranged on the ends of the second air pipes away from the first air pipe.

[0013] Furthermore, the clamping assembly includes a fixed plate mounted on the first air pipe, a ring is rotatably connected to the fixed plate, the ring is fixedly connected to one end of a connecting column, the other end of the connecting column is fixedly connected to a mounting block, a cavity is provided inside the mounting block, a plurality of springs are fixedly connected inside the cavity, the other ends of the plurality of springs are fixedly connected to a sliding plate, the sliding plate is slidably connected in the cavity, two inclined blocks with inclined surfaces away from each other are provided on the sliding plate, and the two inclined blocks both penetrate to the outside of the mounting block.

[0014] Furthermore, the grinding assembly includes a first track fixedly connected to the mounting shell, the clamping block and the inclined block are both slidably connected to the first track, the mounting block is slidably connected to the first track, and two abutment blocks are fixedly provided on the first track.

[0015] Furthermore, the first track is fixedly connected to a second track, the second track is slidably connected to a telescopic rod, the telescopic rod is fixedly connected to two limit blocks, and the two limit blocks are both slidably connected in the first track.

[0016] Furthermore, one end of the telescopic rod is fixedly connected to one end of the limit rod away from the second track, the other end of the limit rod is fixedly connected to one of the grinding blocks, the limit rod is slidably connected to one of the guide rails, the guide rail is fixedly connected to the mounting shell, and the grinding assembly also includes a protrusion arranged on the mounting shell.

[0017] In the above technical scheme, the present invention provides a self-rotating burr grinding mechanism for plastic cup production, in which the driving source drives the setting of the telescopic component so that the plastic cup can move along the length direction of the telescopic component, and under the action of the rotating component, when the plastic cup is fixed, the adsorption fixing component will not rotate to affect the fixation, and when the plastic cup needs to be polished, the plastic cup is driven to rotate for polishing, and the matching setting of the polishing component and the clamping component enables the polishing component to deburr the plastic cup with inclined cup wall without affecting the movement of the plastic cup, and at the same time, the right-angle block arranged on the polishing block enables the polishing component to polish the side wall of the plastic cup while polishing the cup mouth of the plastic cup, so that the polishing of the cup wall and the cup mouth of the plastic cup can be carried out at the same time, which simplifies the process and saves the time required for polishing, and the setting of the guide rail ensures that the inclined setting of the polishing block does not affect the movement of the plastic cup, and moves with the plastic cup during polishing, further reducing the time that the plastic cup needs to stop moving for polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a cross-sectional structure of a telescopic assembly provided in an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the internal structure provided by an embodiment of the present invention;

[0022] Figure 4 One of the partial structural schematic diagrams provided for an embodiment of the present invention;

[0023] Figure 5 A second schematic diagram of a portion of the structure provided in an embodiment of the present invention;

[0024] Figure 6 One of the schematic diagrams of the structure of the grinding assembly provided by the embodiment of the present invention;

[0025] Figure 7 The second schematic diagram of the structure of the grinding assembly provided by the embodiment of the present invention;

[0026] Figure 8 The embodiment of the present invention provides Figure 7 A schematic diagram of the enlarged structure at point A;

[0027] Fig. 9 A schematic diagram of the cross-sectional structure of a mounting block provided in an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1. Mounting shell; 2. Driving source; 3. Telescopic assembly; 31. Threaded column; 32. Threaded sleeve; 33. Fixed shell; 4. Rotating assembly; 41. Sleeve shell; 42. Driven shell; 43. First gear ring; 44. Ratchet unit; 45. Second gear ring; 46. Connector; 47. First gear; 48. Transmission rod; 49. Second gear; 410. Limiting member; 411. Telescopic member; 412. Block; 5. Adsorption and fixing assembly; 51. Air pump; 52. First Air pipe; 53, second air pipe; 54, first suction cup; 55, second suction cup; 6, clamping assembly; 61, fixing plate; 62, ferrule; 63, connecting column; 64, mounting block; 65, spring; 66, sliding plate; 67, inclined block; 7, grinding assembly; 71, first track; 72, abutment block; 73, second track; 74, telescopic rod; 75, limit block; 76, limit rod; 77, grinding block; 78, guide rail; 79, bump; 710, grinding block. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] See also Figure 1-9 The embodiment of the present invention provides a self-rotating burr grinding mechanism for plastic cup production, comprising a mounting shell 1, characterized in that a telescopic component 3 is arranged in the mounting shell 1, a rotating component 4 is arranged on the telescopic component 3, an adsorption fixing component 5 capable of adsorbing the plastic cup is connected to the rotating component 4, a clamping component 6 is sleeved on the adsorption fixing component 5, and a grinding component 7 is also arranged on the mounting shell 1. When the telescopic component 3 moves, it can drive the grinding component 7 to contact the wall and the mouth of the plastic cup, and when the rotating component 4 moves, it drives the plastic cup to rotate and perform grinding between the grinding component 7;

[0032] When the telescopic component 3 moves, it can drive the telescopic rod 74 in the polishing component 7 to move through the movement of the clamping component 6, so that the limit rod 76 moves synchronously, driving the polishing block 77 to move synchronously. The polishing block 77 is arranged at an angle, and a right-angle block 710 is arranged on the polishing block 77. When the limit rod 76 moves, the height changes under the action of the guide rail 78, so that the polishing block 77 can move down to contact the outer wall of the plastic cup, and at the same time drive the right-angle block 710 to move down to contact the mouth of the plastic cup.

[0033] Preferably, a driving source 2 is arranged in the mounting shell 1, and the telescopic assembly 3 includes a threaded column 31 fixedly connected to the output end of the driving source 2, and the end of the threaded column 31 away from the driving source 2 is threadedly connected to a threaded sleeve 32, and the threaded sleeve 32 is slidably connected to a fixed shell 33, and the fixed shell 33 is fixedly connected to the mounting shell 1.

[0034] Preferably, the rotating assembly 4 includes a sleeve shell 41 rotatably connected to the mounting shell 1, the sleeve shell 41 is sleeved on the outside of the fixed shell 33, one end of the sleeve shell 41 is slidably connected to a driven shell 42, the driven shell 42 is sleeved on the outside of the threaded sleeve 32, the driven shell 42 is rotatably connected to the threaded sleeve 32, and a first gear ring 43 is sleeved on the outside of the sleeve shell 41. The rotating assembly 4 also includes a ratchet unit 44 sleeved on the output end of the driving source 2, and a second gear ring 45 is sleeved on the outside of the ratchet unit 44. The second gear ring 45 is rotatably connected to the driving source 2 through a connecting piece 46. The ratchet unit 44 is set so that when the driving source 2 rotates forward, the second gear ring 45 is driven to rotate by friction, but under the limitation of the block 412, the second gear ring 45 cannot rotate. Since the driving source 2 will drive the adsorption and fixing assembly 5 to adsorb and fix the plastic cup when it rotates forward, the ratchet unit 44 is set to prevent the adsorption and fixing assembly 5 from rotating when the plastic cup is adsorbed and fixed, thereby avoiding the influence of rotation on the adsorption and fixation.

[0035] Preferably, two slots are provided on the second gear ring 45, and the rotating assembly 4 also includes two telescopic parts 411 provided on the driving source 2, and two blocks 412 are respectively provided on the two telescopic parts 411, and the two blocks 412 respectively correspond to the two slot positions one by one. The setting of the blocks 412 prevents the ratchet unit 44 from driving the second gear ring 45 to rotate due to friction. At the same time, when the second gear ring 45 rotates, the inclined surface of the blocks 412 is set so that the blocks 412 will not affect the rotation of the ratchet unit 44, so that when the driving source 2 rotates forward, the ratchet unit 44 is locked and will not rotate to affect the adsorption of the plastic cup. When the driving source 2 rotates reversely, the ratchet unit 44 rotates to drive the plastic cup to rotate for grinding.

[0036] Preferably, the second gear ring 45 is meshed with the first gear 47, one end of a transmission rod 48 is fixedly connected to the side of the first gear 47, the other end of the transmission rod 48 is fixedly connected to the second gear 49, the second gear 49 is meshed with the first gear ring 43, the transmission rod 48 is rotatably connected to the limit member 410, the limit member 410 is fixedly connected to the inside of the mounting shell 1, and the second gear ring 45 is driven to rotate by the reverse rotation of the driving source 2, so that the driven shell 42 is rotated, thereby driving the plastic cup to rotate, which is convenient for its grinding process.

[0037] Preferably, the adsorption and fixing component 5 also includes an air pump 51 fixedly connected to the driven shell 42, a first air pipe 52 is arranged on the output end of the air pump 51, a first suction cup 54 is arranged at the end of the first air pipe 52 away from the air pump 51, a plurality of second air pipes 53 are fixedly connected to the first air pipe 52, a plurality of second suction cups 55 are respectively arranged at the ends of the plurality of second air pipes 53 away from the first air pipe 52, and negative pressure is generated between the first suction cup 54 and the plurality of second suction cups 55 and the cup body through the air pump 51, and the friction force caused by the suction cup prevents the plastic cup from shifting and falling off during grinding, and at the same time, by supporting and clamping the inside of the cup body, a softer plastic cup (such as a disposable plastic cup) will not be deformed due to clamping.

[0038] Preferably, the clamping assembly 6 includes a fixed plate 61 sleeved on the first air pipe 52, and a ring 62 is rotatably connected to the fixed plate 61. The ring 62 is fixedly connected to one end of a connecting column 63, and the other end of the connecting column 63 is fixedly connected to a mounting block 64. A cavity is provided inside the mounting block 64, and a plurality of springs 65 are fixedly connected in the cavity. The other ends of the plurality of springs 65 are fixedly connected to a sliding plate 66, and the sliding plate 66 is slidably connected in the cavity. Two inclined blocks 67 with inclined surfaces away from each other are provided on the sliding plate 66. The two inclined blocks 67 both penetrate to the outside of the mounting block 64, and the ring 62 cannot rotate through the sliding connection between the mounting block 64 and the first rail 71. At this time, the rotation of the fixed plate 61 will not affect the rotation of the ring 62, but the movement of the fixed plate 61 along the length direction of the driven shell 42 can still drive the ring 62 to move, so that the mounting block 64 moves synchronously, so that the mounting block 64 does not rotate, which is convenient for the mounting block 64 to drive the movement of the grinding block 77.

[0039] Preferably, the grinding assembly 7 includes a first rail 71 fixedly connected to the mounting shell, the clamping block 412 and the inclined block 67 are both slidably connected to the first rail 71, the mounting block 64 is slidably connected to the first rail 71, and two abutment blocks 72 are fixedly arranged on the first rail 71, and the two abutment blocks 72 are both configured as magnets. At the same time, two limit blocks 75 are configured as magnets to prevent the limit blocks 75 from not fitting with the abutment blocks 72 and affecting the clamping connection between the inclined block 67 and the limit blocks 75.

[0040] Preferably, a second track 73 is fixedly connected to the first track 71, a telescopic rod 74 is slidably connected to the second track 73, two limit blocks 75 are fixedly connected to the telescopic rod 74, both limit blocks 75 are slidably connected in the first track 71, and the setting of the telescopic rod 74 enables the limit rod 76 to be adjusted in height in the guide rail 78, so that the height of the grinding block 77 can be adjusted, so that the inclined grinding block 77 can fit with the plastic cup, preventing the setting of the grinding block 77 from affecting the movement of the plastic cup.

[0041] Preferably, one end of the telescopic rod 74 away from the second track 73 is fixedly connected to one end of a limit rod 76, and the other end of the limit rod 76 is fixedly connected to a grinding block 77. The limit rod 76 is slidably connected in a guide rail 78, and the guide rail 78 is fixedly connected to the mounting shell 1. The grinding assembly 7 also includes a protrusion 79 arranged on the mounting shell 1. Through the setting of the guide rail 78, the grinding block 77 can be raised and lowered, so that the grinding block 77 will not affect the movement of the plastic cup, and will not affect the contact and detachment of the plastic cup with the protrusion 79. At the same time, the grinding block 77 is inclined to facilitate contact with the side wall of the plastic cup. At the same time, a right-angle block is arranged on the grinding block 77. During the movement, the grinding block 77 can drive the right-angle block to contact the mouth of the plastic cup, so that the grinding block 77 can simultaneously grind the mouth of the cup wall of the plastic cup.

[0042] Working principle: the driving source 2 is started to drive the threaded column 31 to rotate (the setting of the ratchet unit 44 makes it impossible for the driving source 2 to drive the second gear ring 45 to rotate at this time). Since the threaded sleeve 32 is slidably connected with the fixed shell 33, the threaded sleeve 32 extends out of the fixed shell 33 under the rotation of the threaded column 31, driving the driven shell 42 to extend out of the sleeve shell 41, so that the air pump 51 moves, drives the first air pipe 52 to move, and makes several second air pipes 53 and a first suction cup 54 move synchronously, so that several second suction cups 55 move synchronously, and after a first suction cup 54 and several second suction cups 55 contact the inside of a plastic cup, the air pump 51 is started, so that negative pressure is generated between the first suction cup 54 and several second suction cups 55 and the inner wall of the plastic cup, so that the plastic cup is fixed, and then the driving source 2 is started to reverse and drive the threaded column 31 to rotate, so that the threaded sleeve 32 is continuously collected into the fixed shell 33, and drives the driven shell 42 to be continuously collected into the sleeve shell 41, so that the grinding assembly 7 moves synchronously, and drives the plastic cup to move synchronously;

[0043] When the driving source 2 is reversed, it can drive the ratchet unit 44 to rotate, so that the second gear ring 45 rotates, drives the first gear 47 to rotate, drives the transmission rod 48 to rotate, drives the second gear 49 to rotate, drives the first gear ring 43 to rotate, drives the sleeve 41 to rotate, drives the driven shell 42 to rotate, drives the air pump 51 to rotate, drives the first air pipe 52 to rotate, drives the second air pipes 53 and a first suction cup 54 to rotate, drives the second suction cups 55 to rotate, and drives the plastic cup to start rotating;

[0044] When the first air pipe 52 moves, it can drive the fixed plate to move synchronously, so that the ring 62 moves, and the connecting column 63 moves, so that the mounting block 64 moves along the length direction of the first track 71, so that the block 412 and the inclined block 67 slide in the first track 71. When the inclined block 67 slides to contact with an abutment block 72, due to the setting of the inclined surface of the inclined block 67, the inclined block 67 is compressed into the inside of the mounting block 64, driving the sliding plate 66 to slide, so that the two springs 65 are compressed, and then the two inclined blocks 67 continue to move. When the first inclined block 67 is When the two limit blocks 75 are moved to between the other inclined block 67, the other inclined block 67 is still in contact with the abutment block 72, so that the inclined block 67 will not pop out from the mounting block 64. Then the mounting block 64 continues to drive the two inclined blocks 67 to move. When the second inclined block 67 moves to between the two limit blocks 75, the other inclined block 67 no longer contacts the limit block 75, so that the two springs 65 are released, driving the sliding plate 66 to slide, so that the two inclined blocks 67 extend out from the mounting block 64, so that one inclined block 67 extends between the two limit blocks 75. By setting the inclined surfaces of the two inclined blocks 67 away from each other, the contact force surface between the inclined block 67 and the limit block 75 is a plane. At this time, the sliding of the inclined block 67 will drive the limit block 75 to slide, so that the telescopic rod 74 slides, and the limit rod 76 slides, so that the grinding block 77 slides. Under the action of the guide rail 78, the limit rod 76 changes its height when moving, so that when the grinding block 77 needs to be polished, the grinding block 77 moves down to contact the outer wall and the cup mouth of the plastic cup, so that the plastic cup is deburred. When the deburring is completed, the guide rail 78 is moved to the bottom of the guide rail 78. The rail 78 causes the grinding block 77 to move upward, so that the grinding block 77 is no longer in contact with the plastic cup. At this time, one inclined block 67 contacts one abutting block 72, so that the two inclined blocks 67 are received in the mounting block 64, driving the sliding plate 66 to slide, so that the two springs 65 are compressed, so that the inclined block 67 is no longer located between the two limit blocks 75, and then the inclined block 67 continues to move. When the two inclined blocks 67 move to no longer contact the abutting block 72, the two springs 65 are released, so that the sliding block moves, driving the two inclined blocks 67 to extend out of the mounting block 64 again;

[0045] After the deburring is completed, the plastic cup continues to move, and the air pump 51 releases gas, so that no negative pressure is formed between the first suction cup 54 and the plurality of second suction cups 55 and the plastic cup. Then the plastic cup moves to contact the protrusion 79, so that the plastic cup cannot continue to move along the length direction of the driven housing 42. At the same time, the first suction cup 54 and the plurality of second suction cups 55 continue to rotate and move along the length direction of the driven housing 42, so that the plastic cup falls off to the conveyor belt of the next process.

[0046] At the same time, when the driving source 2 rotates forward to drive the first air pipe 52 to move, the mounting block 64 moves. At this time, the two inclined blocks 67 move synchronously. Through the setting of the inclined surface, the setting of the abutment block 72 does not affect the movement of the mounting block 64.

[0047] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A self-rotating burr grinding mechanism for plastic cup production, comprising a mounting shell (1), characterized in that: A telescopic component (3) is arranged in the installation shell (1), a rotating component (4) is arranged on the telescopic component (3), an adsorption fixing component (5) capable of adsorbing a plastic cup is connected to the rotating component (4), a clamping component (6) is sleeved on the adsorption fixing component (5), and a grinding component (7) is also arranged on the installation shell (1), the telescopic component (3) can drive the grinding component (7) to contact the wall and the mouth of the plastic cup when it moves, and the rotating component (4) drives the plastic cup to rotate and grind it with the grinding component (7) when it moves; When the telescopic assembly (3) moves, the movement of the clamping assembly (6) can drive the telescopic rod (74) in the grinding assembly (7) to move, so that the limiting rod (76) moves synchronously, driving the grinding block (77) to move synchronously. The grinding block (77) is arranged tilted, and a right-angle block (710) is arranged on the grinding block (77). When the limiting rod (76) moves, the height changes under the action of the guide rail (78), so that the grinding block (77) can move down to contact the outer wall of the plastic cup, and at the same time drive the right-angle block (710) to move down to contact the mouth of the plastic cup; A driving source (2) is arranged in the mounting shell (1), and the telescopic assembly (3) comprises a threaded column (31) fixedly connected to an output end of the driving source (2), and an end of the threaded column (31) away from the driving source (2) is threadedly connected to a threaded sleeve (32), and the threaded sleeve (32) is slidably connected to a fixed shell (33), and the fixed shell (33) is fixedly connected to the mounting shell (1); The rotating assembly (4) comprises a sleeve (41) rotatably connected to the mounting shell (1), the sleeve (41) being sleeved on the outside of the fixed shell (33), one end of the sleeve (41) being slidably connected to a driven shell (42), the driven shell (42) being sleeved on the outside of the threaded sleeve (32), the driven shell (42) being rotatably connected to the threaded sleeve (32), the outer portion of the sleeve (41) being sleeved with a first gear ring (43), the rotating assembly (4) further comprising a ratchet unit (44) sleeved on the output end of the driving source (2), the outer portion of the ratchet unit (44) being sleeved with a second gear ring (45), the second gear ring (45) being rotatably connected to the driving source (2) via a connecting member (46); The second gear ring (45) is provided with two card slots, the rotating assembly (4) further comprising two telescopic members (411) provided on the driving source (2), the two telescopic members (411) being provided with two card blocks (412) in one-to-one correspondence, and the two card blocks (412) are in one-to-one correspondence with the positions of the two card slots respectively; The second gear ring (45) is meshed with the first gear (47); one end of a transmission rod (48) is fixedly connected to the side of the first gear (47); the other end of the transmission rod (48) is fixedly connected to the second gear (49); the second gear (49) is meshed with the first gear ring (43); the transmission rod (48) is rotatably connected to a limiting member (410); and the limiting member (410) is fixedly connected to the inside of the mounting shell (1); The adsorption and fixing component (5) further comprises an air pump (51) fixedly connected to the driven housing (42); a first air pipe (52) is arranged on the output end of the air pump (51); a first suction cup (54) is arranged at one end of the first air pipe (52) away from the air pump (51); a plurality of second air pipes (53) are fixedly connected to the first air pipe (52); and a plurality of second suction cups (55) are arranged at one end of the plurality of second air pipes (53) away from the first air pipe (52); The clamping assembly (6) comprises a fixed plate (61) sleeved on the first air pipe (52), a ring (62) being rotatably connected to the fixed plate (61), the ring (62) being fixedly connected to one end of a connecting column (63), the other end of the connecting column (63) being fixedly connected to a mounting block (64), a cavity being arranged inside the mounting block (64), a plurality of springs (65) being fixedly connected inside the cavity, the other ends of the plurality of springs (65) being fixedly connected to a sliding plate (66), the sliding plate (66) being slidably connected inside the cavity, the sliding plate (66) being provided with two inclined blocks (67) whose inclined surfaces are away from each other, the two inclined blocks (67) both passing through the outside of the mounting block (64).

2. The self-rotating burr grinding mechanism for plastic cup production according to claim 1, characterized in that: The grinding assembly (7) comprises a first track (71) fixedly connected to the mounting shell, the clamping block (412) and the inclined block (67) are both slidably connected to the first track (71), the mounting block (64) is slidably connected to the first track (71), and two abutment blocks (72) are fixedly arranged on the first track (71).

3. The self-rotating burr grinding mechanism for plastic cup production according to claim 2, characterized in that: The first track (71) is fixedly connected to a second track (73), the second track (73) is slidably connected to a telescopic rod (74), the telescopic rod (74) is fixedly connected to two limit blocks (75), and the two limit blocks (75) are both slidably connected in the first track (71).

4. The self-rotating burr grinding mechanism for plastic cup production according to claim 3, characterized in that: One end of the telescopic rod (74) away from the second track (73) is fixedly connected to one end of the limiting rod (76), the other end of the limiting rod (76) is fixedly connected to a grinding block (77), the limiting rod (76) is slidably connected to a guide rail (78), the guide rail (78) is fixedly connected to the mounting shell (1), and the grinding assembly (7) also includes a protrusion (79) arranged on the mounting shell (1).

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