Plastic barrel burr trimming mold

Abstract

The invention provides a plastic round barrel burr trimming mold, and relates to the technical field of burr trimming, the plastic round barrel burr trimming mold comprises a base, a bearing plate is arranged at the circle center of the top of the base, a first spring is fixed between the bearing plate and the base, a plastic barrel is placed on the bearing plate, and an annular pull lug is arranged at the top of the plastic barrel; and limiting assemblies are symmetrically arranged on the two sides of the plastic barrel, each limiting assembly comprises two sets of limiting plates, the limiting plates are attached to the outer surface of the plastic barrel, the tops of the limiting plates make contact with the inner sides of the pull lugs, and polishing blocks are arranged on the outer surfaces of the limiting plates. The plastic bucket deburring device is simple in structure and suitable for deburring machining of plastic buckets of different sizes, the plastic buckets are automatically clamped before machining, the polishing blocks make contact with pull lugs of the plastic buckets, the plastic buckets are polished and deburred, the efficiency is higher, and the time for adjusting the clamp and the polishing blocks is saved.

Description

Technical Field

[0001] The invention relates to the technical field of burr trimming, in particular to a burr trimming mould for a plastic garden barrel. Background Art

[0002] Plastic barrels are widely used in our daily life. After traditional plastic barrels are formed by mold processing, burrs are prone to appear on the edges of the plastic barrels, and the burrs of the plastic barrels need to be trimmed. The traditional trimming method is mostly to manually use a utility knife to trim the burrs generated during plastic molding, which has the problems of high labor intensity, high manual trimming cost and low production efficiency.

[0003] In the prior art, there are also methods for efficiently deburring plastic barrels by mechanical equipment, but the plastic barrels need to be fixed before processing, and the deburring structure needs to be clamped on the raised edge of the top of the plastic barrel. When deburring plastic barrels of different sizes, the position and height of the clamp and the deburring structure need to be adjusted, which is time-consuming and labor-intensive. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a plastic round barrel burr trimming mold to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure and is suitable for deburring plastic barrels of different sizes with the cooperation of a limit assembly, a drive assembly and a lifting assembly. The plastic barrel is automatically clamped before processing, and the grinding block contacts the plastic barrel ear to grind and remove the burrs, which is more efficient and saves time in adjusting the clamp and the grinding block.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a plastic garden barrel burr trimming mold, including a base, a bearing plate is provided at the center of the top circle of the base, a first spring is fixed between the bearing plate and the base, and a plastic barrel is placed on the bearing plate, a ring-shaped pull ear is provided on the top of the plastic barrel, and limit assemblies are symmetrically provided on both sides of the plastic barrel, and the limit assemblies include two groups of limit plates, the limit plates are fitted with the outer surface of the plastic barrel, and the top of the limit plates is in contact with the inner side of the pull ear, a grinding block is provided on the outer surface of the limit plate, and a push block is provided inside the grinding block for sliding. The grinding block and the push block are in frictional contact with the two sides and the bottom surface of the pull ear respectively; the plastic barrel is provided with a lifting assembly on both sides perpendicular to the two limit plates; the lifting assembly includes a top ring, which is sleeved on the outer periphery of the plastic barrel; a swivel is installed on the top of the top ring, and two spring telescopic plates are symmetrically fixed inside the swivel, and the extended end of the spring telescopic plate is fixedly connected to the outer side of the grinding block; a driving assembly is also provided on the surface of the base, and the driving assembly includes a shaft rod, a shaft rod is provided on one side of the swivel, and a gear is sleeved on the top of the shaft rod, a gear ring is fixed on the top of the swivel, and the gear ring is meshed with the gear.

[0006] Furthermore, the limiting assembly also includes an insert plate, the bottom of the limiting plate is rotatably connected to the insert plate via a rotating shaft and a torsion spring, and the insert plate is slidably inserted at the center of the base, a second spring is fixed on the surface of the insert plate, and the other end of the second spring is fixedly connected to the center of the base.

[0007] Furthermore, a second electric push rod is fixed to the back of the grinding block, and the extended end of the second electric push rod is fixedly connected to the push block. A locking bolt is threadedly inserted at the storage end of the spring telescopic plate, and the locking bolt is in extrusion contact with the extended end of the spring telescopic plate.

[0008] Furthermore, a sliding groove is provided on the outer surface of the limit plate, and a slider is slidably connected inside the sliding groove. The outer end of the slider is rotatably connected to an insertion rod through a rotating shaft, and the insertion rod slides out of the top ring. One end of the insertion rod passing through the top ring is sleeved with a third spring, and both ends of the third spring are respectively fixedly connected to the insertion rod and the top ring.

[0009] Furthermore, the lifting assembly also includes a sliding frame, which is fixed on the surface of the base, and a bidirectional screw rod is rotatably installed inside the sliding frame through a bearing, and moving blocks are threadedly sleeved on both ends of the bidirectional screw rod. A first motor is fixed at one end of the sliding frame, and an output end of the first motor is fixedly connected to the bidirectional screw rod.

[0010] Furthermore, the top of the moving block is rotatably connected to a support rod via a rotating shaft, and the other end of the support rod is rotatably connected to a top ring via a rotating shaft. A circular slide rail is fixed to the top of the top ring, and the rotating ring is rotatably installed inside the circular slide rail.

[0011] Furthermore, a first electric push rod is rotatably mounted on the middle surface of the support rod via a rotating shaft, an extrusion plate is fixed to the extended end of the first electric push rod, and the extrusion plate is in extrusion contact with the outer surface of the plastic barrel.

[0012] Furthermore, the driving assembly also includes a second motor, the base is located at the bottom of the shaft and the second motor is fixedly mounted thereon, and the output end of the second motor is fixedly connected to the shaft.

[0013] Furthermore, a fixing plate is fixed to the bottom of the top ring located at the gear, an axle seat is fixed to the center of the gear, and the axle seat rotates through the fixing plate, and the axle seat is slidably sleeved on the surface of the shaft.

[0014] Furthermore, convex strips are symmetrically fixed on the surface of the shaft rod, and a groove matching the convex strips is provided inside the shaft seat.

[0015] Beneficial effects of the present invention:

[0016] 1. The present invention drives the gear to rotate through the shaft rod through the second motor, and the gear meshes with the gear ring to drive the rotating ring to rotate, thereby driving the grinding block to move along the pull ear to grind the burrs on the pull ear of the plastic barrel. Because the gear is connected to the top ring through the shaft seat and the fixing plate, it will move up and down with the top ring and always maintain a meshing connection with the gear ring. Because there is a groove inside the shaft seat that matches the shaft rod and the convex strip, the shaft seat can slide along the surface of the shaft rod and maintain a clamping connection with the shaft rod through the convex strip. The gear can be driven to rotate by the shaft rod at any position.

[0017] 2. The present invention drives the extrusion plate to move by the first electric push rod, and the extrusion plate is in extrusion contact with the outer wall of the plastic barrel, so as to clamp and fix the position of the plastic barrel, thereby maintaining the stability of the plastic barrel itself during the deburring process. At the same time, the rotational connection between the first electric push rod and the support rod can meet the needs of plastic barrel surfaces with different inclinations.

[0018] 3. The present invention drives the bidirectional screw to rotate through the first motor, and the two moving blocks cooperate with the bidirectional screw thread to slide along the slide frame. Because the top ring is limited by the limit plate, the support rod lifts the top ring upward, and the top ring and the swivel move upward together. At the same time, due to the sliding insertion of the insertion rod and the top ring, the slider slides along the slide groove until the grinding block on the swivel is clamped on the surface of the pull ear. The top ring is connected to the limit plate through the insertion rod and is far away from the limit plate. The limit plate can be suitable for plastic barrels of different sizes and inclinations. At different inclinations, the connection with the top ring is maintained by the insertion rod, and the movement of the top ring is guided and limited.

[0019] 4. The present invention drives the push block to move through the second electric push rod, so that the grinding block is in frictional contact with the inner and outer sides and the bottom of the pull ear, and can complete the burr removal grinding at three locations at the same time. After determining the position, the position of the spring telescopic plate is fixed by the locking bolt to keep the position of the grinding block unchanged. In the initial state, the two limit plates are tilted outward but gathered inward in the middle. As the plastic barrel is inserted, the limit plates are pushed outward, so that the plug plate moves outward, and the inclination angles of the limit plates and the plug plate also match the surface inclination of the plastic barrel, which is suitable for the placement of plastic barrels of different sizes and inclinations.

[0020] 5. Compared with the prior art, the present invention, with the cooperation of the limit assembly, the drive assembly and the lifting assembly, is suitable for the deburring processing of plastic barrels of different sizes. The plastic barrel is automatically clamped before processing, and the grinding block contacts the pull ear of the plastic barrel to grind and deburr it, which is more efficient and saves time for adjusting the clamp and the grinding block. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a plastic garden barrel burr trimming mold of the present invention;

[0022] Figure 2 A schematic diagram of removing a plastic barrel from a plastic barrel burr trimming mold of the present invention;

[0023] Figure 3 This is a schematic diagram of the top structure of a base of a plastic garden barrel burr trimming mold of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of a lifting assembly of a plastic garden barrel burr trimming mold of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection between a limiting component and a driving component of a plastic garden barrel burr trimming mold of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of a limiting component of a plastic garden barrel burr trimming mold of the present invention;

[0027] Figure 7 It is a schematic diagram of the connection between the limit assembly and the top ring of a plastic garden barrel burr trimming mold of the present invention;

[0028] Figure 8 The present invention is a schematic diagram of separating the rotating ring and the top ring of a plastic barrel burr trimming mold.

[0029] In the figure: 1, base; 11, bearing plate; 12, first spring; 2, plastic barrel; 21, pull ear; 3, lifting assembly; 31, slide frame; 32, two-way screw rod; 33, first motor; 34, support rod; 35, top ring; 36, extrusion plate; 37, moving block; 38, first electric push rod; 39, swivel; 310, circular slide rail; 4, driving assembly; 41, second motor; 42, shaft; 43, gear; 44, gear ring; 45, fixing plate; 46, shaft seat; 47, convex strip; 5, limit assembly; 51, limit plate; 52, plug plate; 53, second spring; 54, slide groove; 55, slider; 56, plug rod; 57, third spring; 58, spring telescopic plate; 59, grinding block; 510, locking bolt; 511, second electric push rod; 512, push block. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] See also Figures 1 to 8The present invention provides a technical solution: a plastic barrel burr trimming mold, comprising a base 1, a bearing plate 11 is provided at the center of the top of the base 1, a first spring 12 is fixed between the bearing plate 11 and the base 1, and a plastic barrel 2 is placed on the bearing plate 11, a circular pull ear 21 is provided on the top of the plastic barrel 2, and limiting components 5 are symmetrically provided on both sides of the plastic barrel 2, the limiting components 5 include two groups of limiting plates 51, the limiting plates 51 are fitted with the outer surface of the plastic barrel 2, and the top of the limiting plates 51 is in contact with the inner side of the pull ear 21, a grinding block 59 is provided on the outer surface of the limiting plate 51, a push block 512 is provided inside the grinding block 59 for sliding, and the grinding block 59 and the push block 512 are in friction contact with the two sides and the bottom surface of the pull ear 21 respectively, and the plastic barrel 2 is perpendicular to the two sides of the two limiting plates 51. The lifting component 3 is provided, and the lifting component 3 includes a top ring 35, and the top ring 35 is sleeved on the plastic barrel 2. On the periphery, a swivel 39 is installed on the top of the top ring 35, and two spring telescopic plates 58 are symmetrically fixed inside the swivel 39, and the extended ends of the spring telescopic plates 58 are fixedly connected to the outer side of the grinding block 59. A driving assembly 4 is also provided on the surface of the base 1, and the driving assembly 4 includes a shaft 42. A shaft 42 is provided on one side of the swivel 39, and a gear 43 is sleeved on the top of the shaft 42. A gear ring 44 is fixed on the top of the swivel 39, and the gear ring 44 is meshed with the gear 43. When using the device, the plastic barrel 2 is placed on the supporting plate 11, and the two limit plates 51 are wrapped around the two sides of the plastic barrel 2. The position of the supporting plate 11 is adjusted by the first spring 12 to be suitable for placing plastic barrels 2 of different heights, and the pull ear 21 of the plastic barrel 2 is kept in contact with the top of the limit plate 51. The grinding block 59 is clamped on the pull ear 21 through the driving assembly 4 and the lifting assembly 3, and is moved in a circular shape along the pull ear 21 to deburr the pull ear 21.

[0032] In this embodiment, the limiting assembly 5 also includes an insert plate 52, the bottom of the limiting plate 51 is rotatably connected to the insert plate 52 through a rotating shaft and a torsion spring, and the insert plate 52 is slidably inserted at the center of the base 1, a second spring 53 is fixed on the surface of the insert plate 52, and the other end of the second spring 53 is fixedly connected to the center of the base 1, a second electric push rod 511 is fixed to the back of the grinding block 59, and the extended end of the second electric push rod 511 is fixedly connected to the push block 512, a locking bolt 510 is threadedly inserted at the storage end of the spring telescopic plate 58, and the locking bolt 510 is in extrusion contact with the extended end of the spring telescopic plate 58, the grinding block 59 is initially in sliding contact with the outer surface of the limiting plate 51, and as the top ring 35 and the rotating ring 39 move upward, the grinding block 59 moves along the limiting plate The inclined surface of 51 slides to match the shape of the plastic barrel 2 until it moves to the top, and the grinding block 59 automatically engages with the pull ear 21. The push block 512 is driven to move by the second electric push rod 511, so that the grinding block 59 is in friction contact with the inner and outer sides and the bottom of the pull ear 21, and the burr removal grinding at three locations can be completed at the same time. After determining the position, the position of the spring telescopic plate 58 is fixed by the locking bolt 510 to keep the position of the grinding block 59 unchanged. In the initial state, the two limit plates 51 are tilted outward but gathered inward in the middle. As the plastic barrel 2 is inserted, the limit plates 51 will be pushed outward, so that the plug plate 52 moves outward, and the inclination angles of the limit plates 51 and the plug plate 52 also match the surface inclination of the plastic barrel 2, which is suitable for the placement of plastic barrels 2 of different sizes and inclinations.

[0033] In this embodiment, a slide groove 54 is provided on the outer surface of the limit plate 51, and a slider 55 is slidably connected inside the slide groove 54, the outer end of the slider 55 is rotatably connected to a plug rod 56 through a rotating shaft, and the plug rod 56 slides out of the top ring 35, and one end of the plug rod 56 passing through the top ring 35 is sleeved with a third spring 57, and the two ends of the third spring 57 are respectively fixedly connected to the plug rod 56 and the top ring 35, the lifting assembly 3 also includes a slide frame 31, the slide frame 31 is fixed on the surface of the base 1, and a bidirectional screw rod 32 is rotatably installed inside the slide frame 31 through a bearing, and moving blocks 37 are threadedly sleeved at both ends of the bidirectional screw rod 32, a first motor 33 is fixed to one end of the slide frame 31, and the output end of the first motor 33 is fixedly connected to the bidirectional screw rod 32, the top of the moving block 37 is rotatably connected to the support rod 34 through a rotating shaft, and the other end of the support rod 34 is connected to the top ring through a rotating shaft. The top ring 35 is rotatably connected with the top ring 35, and a circular slide rail 310 is fixed on the top of the top ring 35, and the swivel 39 is rotatably installed inside the circular slide rail 310. The first motor 33 drives the bidirectional screw rod 32 to rotate, and the two moving blocks 37 are threadedly matched with the bidirectional screw rod 32 to slide along the slide frame 31. Because the top ring 35 is limited by the limit plate 51, the support rod 34 lifts the top ring 35 upward, and the top ring 35 and the swivel 39 move upward together. At the same time, because the insertion rod 56 is slidably connected with the top ring 35, the slider 55 slides along the slide groove 54 until the grinding block 59 on the swivel 39 is clamped on the surface of the pull ear 21. The top ring 35 is connected to the limit plate 51 through the insertion rod 56 and is far away from the limit plate 51. The limit plate 51 can be suitable for plastic barrels 2 of different sizes and inclinations. Under different inclinations, the insertion rod 56 is used to maintain the connection with the top ring 35, and the movement of the top ring 35 is guided and limited.

[0034] In this embodiment, a first electric push rod 38 is rotatably installed on the middle surface of the support rod 34 through a rotating shaft, and an extrusion plate 36 is fixed to the extended end of the first electric push rod 38, and the extrusion plate 36 is in extrusion contact with the outer surface of the plastic barrel 2. After the support rod 34 moves the top ring 35 to the top, the extrusion plate 36 is driven to move by the first electric push rod 38, and the extrusion plate 36 is in extrusion contact with the outer wall of the plastic barrel 2, thereby clamping and fixing the position of the plastic barrel 2 to maintain the stability of the plastic barrel 2 itself during the deburring process. At the same time, the rotational connection between the first electric push rod 38 and the support rod 34 can meet the needs of the surfaces of the plastic barrel 2 with different inclinations.

[0035] In this embodiment, the driving assembly 4 also includes a second motor 41, the base 1 is located at the bottom of the shaft 42 and fixed with the second motor 41, and the output end of the second motor 41 is fixedly connected to the shaft 42, the top ring 35 is located at the bottom of the gear 43 and fixed with a fixing plate 45, the center of the gear 43 is fixed with a shaft seat 46, and the shaft seat 46 rotates through the fixing plate 45, the shaft seat 46 is slidably sleeved on the surface of the shaft 42, and convex strips 47 are symmetrically fixed on the surface of the shaft 42, and a slot matching the convex strips 47 is opened inside the shaft seat 46, and the second motor 41 drives the gear 43 through the shaft 42 The gear 43 meshes with the gear ring 44 to drive the swivel 39 to rotate, thereby driving the grinding block 59 to move along the pull ear 21 to grind the burrs on the pull ear 21 of the plastic barrel 2. Because the gear 43 is connected to the top ring 35 through the shaft seat 46 and the fixing plate 45, it will move up and down with the top ring 35, and always maintain a meshing connection with the gear ring 44. Because the shaft seat 46 has a groove inside that matches the shaft rod 42 and the convex strip 47, the shaft seat 46 can slide along the surface of the shaft rod 42 and maintain a clamping connection with the shaft rod 42 through the convex strip 47. The gear 43 can be driven to rotate by the shaft rod 42 at any position.

[0036] When the device is used, the plastic barrel 2 is placed on the supporting plate 11, and the two limiting plates 51 are wrapped around the two sides of the plastic barrel 2. The position of the supporting plate 11 is adjusted by the first spring 12 so that it can be suitable for placing plastic barrels 2 of different heights, and the pull ear 21 of the plastic barrel 2 is kept in contact with the top of the limiting plate 51. The grinding block 59 is initially in sliding contact with the outer surface of the limiting plate 51. As the top ring 35 and the rotating ring 39 move upward, the grinding block 59 slides along the inclined surface of the limiting plate 51 to match the shape of the plastic barrel 2. After moving to the top, the grinding block 59 is automatically engaged with the pull ear 21, and the push block 512 is driven to move by the second electric push rod 511, so that the grinding block 59 rubs against the inner and outer sides and the bottom of the pull ear 21. The rubbing contact can complete the deburring and grinding of three places at the same time. After determining the position, the position of the spring telescopic plate 58 is fixed by the locking bolt 510 to keep the position of the grinding block 59 unchanged. In the initial state, the two limit plates 51 are tilted outward but gathered inward in the middle. As the plastic barrel 2 is inserted, the limit plates 51 are pushed outward, so that the plug plate 52 moves outward, and the inclination angles of the limit plates 51 and the plug plates 52 also match the surface inclination of the plastic barrel 2, which is suitable for placing plastic barrels 2 of different sizes and inclinations. The second motor 41 drives the gear 43 to rotate through the shaft 42, and the gear 43 engages with the gear ring 44 to drive the swivel 39 to rotate, thereby driving the grinding block 59 to move along the pull ear 21. The burrs on the pull ear 21 of the plastic barrel 2 are polished. Because the gear 43 is connected to the top ring 35 through the shaft seat 46 and the fixing plate 45, it will move up and down with the top ring 35 and always maintain a meshing connection with the gear ring 44. Because the shaft seat 46 has a groove matching the shaft rod 42 and the convex strip 47 inside, the shaft seat 46 can slide along the surface of the shaft rod 42 and maintain the clamping connection with the shaft rod 42 through the convex strip 47. The shaft rod 42 can drive the gear 43 to rotate at any position. The first motor 33 drives the bidirectional screw rod 32 to rotate. The two moving blocks 37 and the bidirectional screw rod 32 are threadedly matched to slide along the slide frame 31. Because the top ring 35 is limited by the limit plate 51, the support rod 3 The top ring 35 is lifted upward, and the top ring 35 and the swivel 39 move upward together. At the same time, because the insertion rod 56 is slidably connected with the top ring 35, the slider 55 slides along the slide groove 54 until the grinding block 59 on the swivel 39 is engaged with the surface of the pull ear 21. The top ring 35 is connected to the limit plate 51 through the insertion rod 56 and is far away from the limit plate 51. The limit plate 51 can be suitable for plastic barrels 2 of different sizes and inclinations. Under different inclinations, the insertion rod 56 keeps the connection with the top ring 35, guides and limits the movement of the top ring 35, and the grinding block 59 is engaged with the pull ear 21 through the driving assembly 4 and the lifting assembly 3, and moves in a circular manner along the pull ear 21 to remove the burrs of the pull ear 21.

[0037] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plastic barrel burr trimming mold, comprising a base (1), characterized in that: A bearing plate (11) is provided at the center of the top circle of the base (1), a first spring (12) is fixed between the bearing plate (11) and the base (1), and a plastic barrel (2) is placed on the bearing plate (11), a ring-shaped pull ear (21) is provided on the top of the plastic barrel (2), and limiting components (5) are symmetrically provided on both sides of the plastic barrel (2), and the limiting components (5) include two groups of limiting plates (51), the limiting plates (51) are in contact with the outer surface of the plastic barrel (2), and the top of the limiting plates (51) is in contact with the inner side of the pull ear (21), and a grinding block (59) is provided on the outer surface of the limiting plate (51), and a push block (512) is slidably provided inside the grinding block (59), and the grinding block (59) and the push block (512) are in friction contact with the two sides and the bottom surface of the pull ear (21) respectively. The plastic barrel (2) is provided with a lifting assembly (3) on both sides perpendicular to the two limit plates (51), the lifting assembly (3) comprising a top ring (35), the top ring (35) being sleeved on the periphery of the plastic barrel (2), a rotating ring (39) being installed on the top of the top ring (35), and two spring telescopic plates (58) being symmetrically fixed inside the rotating ring (39), and the extended ends of the spring telescopic plates (58) being fixedly connected to the outer side of the grinding block (59), and a driving assembly (4) being further provided on the surface of the base (1), the driving assembly (4) comprising a shaft (42), a shaft (42) being provided on one side of the rotating ring (39), and a gear (43) being sleeved on the top of the shaft (42), and a gear ring (44) being fixed on the top of the rotating ring (39), and the gear ring (44) being meshingly connected with the gear (43).

2. A plastic barrel burr trimming mold according to claim 1, characterized in that: The limiting assembly (5) further comprises an inserting plate (52), the bottom of the limiting plate (51) being rotatably connected to the inserting plate (52) via a rotating shaft and a torsion spring, and the inserting plate (52) being slidably inserted at the center of the base (1), a second spring (53) being fixed on the surface of the inserting plate (52), and the other end of the second spring (53) being fixedly connected to the center of the base (1).

3. A plastic barrel burr trimming mold according to claim 2, characterized in that: A second electric push rod (511) is fixed to the back of the grinding block (59), and the extended end of the second electric push rod (511) is fixedly connected to the push block (512); a locking bolt (510) is threadedly inserted at the storage end of the spring telescopic plate (58), and the locking bolt (510) is in compression contact with the extended end of the spring telescopic plate (58).

4. A plastic barrel burr trimming mold according to claim 3, characterized in that: A sliding groove (54) is provided on the outer surface of the limiting plate (51), and a slider (55) is slidably connected inside the sliding groove (54), and the outer end of the slider (55) is rotatably connected to an insertion rod (56) through a rotating shaft, and the insertion rod (56) slides through the top ring (35), and one end of the insertion rod (56) passing through the top ring (35) is sleeved with a third spring (57), and the two ends of the third spring (57) are respectively fixedly connected to the insertion rod (56) and the top ring (35).

5. A plastic barrel burr trimming mold according to claim 1, characterized in that: The lifting assembly (3) also includes a sliding frame (31), the sliding frame (31) is fixed on the surface of the base (1), and a bidirectional screw rod (32) is rotatably mounted inside the sliding frame (31) via a bearing, and moving blocks (37) are threadedly sleeved at both ends of the bidirectional screw rod (32), and a first motor (33) is fixed at one end of the sliding frame (31), and the output end of the first motor (33) is fixedly connected to the bidirectional screw rod (32).

6. A plastic barrel burr trimming mold according to claim 5, characterized in that: The top of the moving block (37) is rotatably connected to a support rod (34) via a rotating shaft, and the other end of the support rod (34) is rotatably connected to a top ring (35) via a rotating shaft. A circular slide rail (310) is fixed to the top of the top ring (35), and a rotating ring (39) is rotatably installed inside the circular slide rail (310).

7. A plastic barrel burr trimming mold according to claim 6, characterized in that: A first electric push rod (38) is rotatably mounted on the middle surface of the support rod (34) via a rotating shaft, an extrusion plate (36) is fixed to the extended end of the first electric push rod (38), and the extrusion plate (36) is in extrusion contact with the outer surface of the plastic barrel (2).

8. A plastic barrel burr trimming mold according to claim 1, characterized in that: The driving assembly (4) further comprises a second motor (41), the base (1) is located at the bottom of the shaft (42) and is fixed with the second motor (41), and the output end of the second motor (41) is fixedly connected to the shaft (42).

9. A plastic barrel burr trimming mold according to claim 8, characterized in that: The top ring (35) is located at the bottom of the gear (43) and is fixed with a fixing plate (45). The center of the gear (43) is fixed with an axle seat (46). The axle seat (46) rotates through the fixing plate (45), and the axle seat (46) is slidably sleeved on the surface of the shaft (42).

10. A plastic barrel burr trimming mold according to claim 9, characterized in that: The surface of the shaft rod (42) is symmetrically fixed with convex strips (47), and the shaft seat (46) is provided with a slot matching the convex strips (47) inside.

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