Device for eliminating bulges on injection molding barrel body of plastic barrel

Abstract

The utility model relates to the technical field of plastic bucket production, in particular to a device for eliminating bulges on an injection-molded bucket body of a plastic bucket, which can be used for automatically taking and blanking the bucket, reducing the labor intensity and improving the working efficiency. Comprising a workbench and a scraper knife, and the scraper knife is installed on the workbench; the scraper knife is located in the middle of the workbench, a cutting edge of the scraper knife faces the right side of the workbench, the sliding rail is installed on the upper end face of the workbench, the sliding table is installed on the sliding rail in a sliding mode through a sliding block, the first clamping plate is located on the right portion of the sliding table, and the pushing mechanism is installed on the workbench. The pushing mechanism is in transmission connection with the first clamping plate, the rotating shaft is elastically and rotationally installed on the left portion of the sliding table, the second clamping plate is installed in the middle of the rotating shaft and arranged opposite to the first clamping plate, the second clamping plate and the first clamping plate are matched to clamp a plastic barrel, the gear is concentrically installed at the end of the rotating shaft, and the rack is installed at the left end of the workbench, aligned with the gear and meshed with the gear.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic bucket production especially relates to a plastic bucket injection moulds barrel body protrusion elimination device. BACKGROUND

[0002] The making technology of plastic bucket is relatively mature, but the bottom of the plastic bucket after injection molding will leave protruding foreign matter, and a elimination device is needed to eliminate the protrusion. The prior art discloses a plastic bucket injection molding barrel body protrusion elimination device, which comprises a base and a barrel body, a placing groove is formed in the top of the base, two fixing mechanisms are symmetrically arranged in the placing groove, the barrel body is placed in the placing groove, a square groove is formed in the bottom of the placing groove, a storage mechanism is arranged in the square groove, two push rod motors are arranged on the inner wall of the square groove, a fixed box is fixedly installed on the output shaft of each push rod motor, a cutting shaft is rotatably installed on the fixed box, a cutting knife is arranged on the cutting shaft, and a polishing mechanism is arranged on the fixed box. The barrel body can be tightly fixed to ensure the stability of the barrel body, the protrusion can be not only cut but also polished and deburred.

[0003] However, the above-mentioned elimination device cannot automatically discharge, and after the protrusion on the bottom of the plastic bucket is removed, the arc-shaped clamping plate needs to be manually opened to take out the plastic bucket, which leads to high labor intensity and is not conducive to improving work efficiency. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a plastic bucket injection molding barrel body protrusion elimination device which can automatically take out the barrel and discharge, reduce labor intensity and improve work efficiency.

[0005] The utility model discloses a kind of plastic bucket injection mould barrel protrusion eliminating devices, including workbench and spud, spud is installed on workbench;It further includes slide rail, sliding table, clamping plate one, pivot, clamping plate two, gear, rack and push mechanism, spud is located in the middle of workbench, the blade of spud is towards the right side of workbench, slide rail is installed on the upper end surface of workbench, sliding table is slidably installed on slide rail by sliding block, clamping plate one is located in the right part of sliding table, push mechanism is installed on workbench, push mechanism is connected with clamping plate one transmission, pivot is elastically rotatably installed in the left part of sliding table, the middle part of pivot is installed clamping plate two, clamping plate two is oppositely arranged with clamping plate one, clamping plate two and clamping plate one cooperate and hold plastic bucket, gear is concentrically installed in the end of pivot, rack is installed in the left end of workbench, rack is aligned with gear, and rack can be engaged with gear;When working, sliding table is located in the right part of workbench, and plastic bucket is loaded between clamping plate one and clamping plate two, push mechanism pushes clamping plate one to left, so that plastic bucket is pushed sliding table to left by clamping plate two and pivot, when plastic bucket passes spud, the blade of spud cuts off and removes the protrusion of plastic bucket bottom, push mechanism continues to push clamping plate one and sliding table to left, when gear meets rack and starts to engage, so that rack drives gear to rotate, gear drives pivot to rotate, pivot drives clamping plate two to overturn left and open, after plastic bucket loses the limit of clamping plate two, be pushed out sliding table and the left side of workbench by clamping plate one, realize automatic unloading, push mechanism drives clamping plate one and sliding table reset, in this process, rack engages gear, so that gear and pivot reverse reset, pivot drives clamping plate two to reverse reset, compared with prior art, it is not necessary to manually take bucket unloading, reduce labor intensity, improve work efficiency.

[0006] Preferably, it further includes torsion spring, torsion spring is installed on pivot, torsion spring is elastically connected with sliding table, and the elastic force of torsion spring makes pivot drive clamping plate two to be vertical state;The elastic force of torsion spring makes pivot keep elastic stability, so that after gear and rack disengage, clamping plate two keeps vertical stability.

[0007] Preferably, it further includes sliding sleeve, positioning pin, spherical sliding end and guide block, sliding sleeve is installed on sliding table, positioning pin is vertically slidably inserted in sliding sleeve, the upper end of positioning pin is provided with a latch, the latch is movably inserted in the positioning hole of pivot, the lower end of positioning pin is provided with spherical sliding end, guide block is installed on workbench, the right side of guide block is provided with inclined plane, and the right end of guide block extends the right side of rack;The upper end of positioning pin is inserted into the positioning hole of pivot to position and lock pivot and clamping plate two, improve the stability of clamping plate two, before gear meets rack, spherical sliding end slides along the inclined plane of guide block, drives positioning pin to rise, so that the latch of positioning pin is pulled out of the hole of pivot, at this time, pivot is unlocked, when gear and rack engage, pivot can drive clamping plate two to overturn and unload, improve practicability.

[0008] Preferably, the pushing mechanism comprises a pushing cylinder, an elastic telescopic rod and a pushing ring, the fixed end of the pushing cylinder is installed at the right end of the workbench, the end of the piston rod of the pushing cylinder slides through the right part of the sliding table, the elastic telescopic rod is installed on the end of the piston rod of the pushing cylinder, the elastic telescopic rod is connected with the first clamping plate, the pushing ring is slidably sleeved on the piston rod of the pushing cylinder, and the pushing ring is located at the right side of the sliding table; when the piston rod of the pushing cylinder is elongated, the first clamping plate is pushed to the second clamping plate through the elastic telescopic rod, so that the first clamping plate and the second clamping plate are matched to clamp the plastic barrel; by arranging the elastic telescopic rod, the clamping force on the plastic barrel is maintained, after the elastic telescopic rod is compressed by a certain distance, the pushing ring blocks the sliding table, so that the plastic barrel is not clamped and broken, and the sliding table is pushed to move leftwards by the pushing ring.

[0009] Preferably, the utility model also includes a limiting sliding block and a locking bolt, the limiting sliding block is installed on the slide rail, the locking bolt is rotatably screwed on the limiting sliding block, the locking bolt locks the limiting sliding block on the slide rail, and the limiting sliding block is located at the right side of the sliding table; when the piston rod of the pushing cylinder is retracted to drive the sliding table to move rightwards and reset along the slide rail, the limiting sliding block blocks the sliding table, the piston rod of the pushing cylinder continues to be retracted, the first clamping plate is pulled rightwards, the elastic telescopic rod is compressed, and the second clamping plate is away from the first clamping plate and opened, so that the plastic barrel is conveniently loaded between the second clamping plate and the first clamping plate.

[0010] Preferably, the utility model also includes a sliding rod, a sliding block, a jacking rod, and a second pushing cylinder, a fertilizer port is arranged on the workbench and located below the shovel, the sliding rod is vertically installed on the lower end face of the workbench, the sliding block is slidably installed on the sliding rod, the lower end of the jacking rod is rotatably connected with the sliding block, the upper end of the jacking rod is rotatably connected with the lower end face of the middle part of the shovel, one end of the second pushing cylinder is connected with the workbench, and the other end of the second pushing cylinder is connected with the sliding block; when the piston rod of the second pushing cylinder is elongated or retracted, the sliding block is driven to ascend or descend along the sliding rod, when the sliding block is elevated, the blade edge of the shovel is pushed upwards through the jacking rod, when the sliding block is lowered, the blade edge of the shovel is pulled downwards through the jacking rod, so that the height of the blade edge of the shovel is adjusted, different heights of the protrusions on the bottom of the plastic barrel are adapted, and the universality is improved.

[0011] Compared with the prior art, the utility model has the beneficial effects that: during work, the sliding table is located at the right part of the workbench, the plastic barrel is loaded between the first clamping plate and the second clamping plate, the pushing mechanism pushes the first clamping plate leftwards, the plastic barrel is pushed leftwards through the second clamping plate and the rotating shaft, when the plastic barrel passes through the shovel, the blade edge of the shovel cuts off and removes the protrusion on the bottom of the plastic barrel, the pushing mechanism continues to push the first clamping plate and the sliding table leftwards, the gear and the rack are engaged after meeting, the rack drives the rotation of the gear, the gear drives the rotation of the rotating shaft, the rotating shaft drives the left overturning and opening of the second clamping plate, the plastic barrel is pushed out of the sliding table and the left side of the workbench after losing the limitation of the second clamping plate, automatic unloading is realized, the pushing mechanism drives the first clamping plate and the sliding table to reset, and in the process, the gear and the rotating shaft are reversely rotated to reset, the rotating shaft drives the second clamping plate to reversely reset, compared with the prior art, the plastic barrel is not manually taken out for unloading, the labor intensity is reduced, and the work efficiency is improved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a front cross-sectional view of the clamping plastic bucket configuration of this utility model.

[0014] Figure 3 This is a schematic diagram of the axonometric structure of this utility model from a bottom view;

[0015] Figure 4 This is a schematic diagram of the structure of the present invention when removing the protrusion at the bottom of the plastic bucket;

[0016] Figure 5 It is a structural diagram of the slide, clamp one, rotating shaft, clamp two, and gears, etc.

[0017] Figure 6 It is a structural diagram of the shaft, clamping plate 2, gear, rack, torsion spring, sliding sleeve, locating pin, spherical sliding end and guide block, etc.

[0018] Figure 7 It is a structural diagram of the blade, slide bar, slider, push rod, and push cylinder.

[0019] The following are labels in the attached diagram: 1. Workbench; 2. Shovel; 3. Slide rail; 4. Slide table; 5. Clamping plate one; 6. Rotating shaft; 7. Clamping plate two; 8. Gear; 9. Rack; 10. Torsion spring; 11. Sliding sleeve; 12. Locating pin; 13. Spherical sliding end; 14. Guide block; 15. Push cylinder; 16. Elastic telescopic rod; 17. Push ring; 18. Limiting slider; 19. Locking bolt; 20. Slide rod; 21. Slider; 22. Top rod; 23. Push cylinder two. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] like Figures 1 to 5As shown, a kind of plastic bucket injection bucket body protrusion eliminating device, including workbench 1 and spud 2, spud 2 is installed on workbench 1;It also includes slide rail 3, sliding table 4, clamping plate one 5, pivot 6, clamping plate two 7, gear 8, rack 9 and push mechanism, spud 2 is in the middle of workbench 1, the blade of spud 2 is towards the right side of workbench 1, slide rail 3 is installed on the upper end surface of workbench 1, sliding table 4 is slidably installed on slide rail 3 by slide block, clamping plate one 5 is in the right part of sliding table 4, push mechanism is installed on workbench 1, push mechanism is transmission connection with clamping plate one 5, pivot 6 is elastically rotatably installed in the left part of sliding table 4, the middle part of pivot 6 is installed clamping plate two 7, clamping plate two 7 is oppositely arranged with clamping plate one 5, clamping plate two 7 and clamping plate one 5 cooperate and hold plastic bucket, gear 8 is concentrically installed on the end of pivot 6, rack 9 is installed on the left end of workbench 1, rack 9 is aligned with gear 8, and rack 9 can be engaged with gear 8;It also includes torsion spring 10, torsion spring 10 is installed on pivot 6, torsion spring 10 is elastically connected with sliding table 4, and the elastic force of torsion spring 10 makes pivot 6 drive clamping plate two 7 to be vertical state;Push mechanism includes push cylinder 15, elastic telescopic rod 16 and push ring 17, the fixed end of push cylinder 15 is installed on the right end of workbench 1, the end of the piston rod of push cylinder 15 is slidably passed through the right part of sliding table 4, elastic telescopic rod 16 is installed on the end of the piston rod of push cylinder 15, and elastic telescopic rod 16 is connected with clamping plate one 5, push ring 17 is slidably sleeved on the piston rod of push cylinder 15, and push ring 17 is located at the right side of sliding table 4;It also includes limiting slide block 18 and locking bolt 19, limiting slide block 18 is installed on slide rail 3, locking bolt 19 is rotationally screwed on limiting slide block 18, locking bolt 19 locks limiting slide block 18 on slide rail 3, and limiting slide block 18 is located at the right side of sliding table 4.

[0023] When working, the sliding table 4 is located at the right part of the workbench 1, the elastic force of the torsion spring 10 keeps the rotating shaft 6 in elastic stability, so that the gear 8 is disengaged from the rack 9, the clamping plate two 7 keeps vertical stability, the plastic bucket is loaded between the clamping plate one 5 and the clamping plate two 7, when the piston rod of the push cylinder 15 is elongated, the clamping plate one 5 is pushed to the clamping plate two 7 through the elastic expansion rod 16, so that the clamping plate one 5 and the clamping plate two 7 cooperate to clamp the plastic bucket, by arranging the elastic expansion rod 16, the clamping force on the plastic bucket is maintained, when the elastic expansion rod 16 is compressed for a certain distance, the push ring 17 blocks the sliding table 4, so as to avoid that the plastic bucket is clamped and broken, and the sliding table 4 is pushed to move left through the push ring 17, when the plastic bucket passes through the spade 2, the cutting edge of the spade 2 cuts off and removes the protrusion at the bottom of the plastic bucket, the piston rod of the push cylinder 15 is elongated to continue pushing the clamping plate one 5 and the sliding table 4 to the left, when the gear 8 meets the rack 9, the gear 8 starts to rotate driven by the rack 9, the gear 8 drives the rotating shaft 6 to rotate, the rotating shaft 6 drives the clamping plate two 7 to turn left and open, the plastic bucket loses the limitation of the clamping plate two 7 and is pushed out of the sliding table 4 and the left side of the workbench 1 by the clamping plate one 5, so as to realize automatic unloading, the piston rod of the push cylinder 15 is retracted to drive the clamping plate one 5 and the sliding table 4 to reset through the elastic expansion rod 16, in this process, the gear 8 and the rotating shaft 6 are reversed and reset by the engagement of the rack 9 and the gear 8, the rotating shaft 6 drives the clamping plate two 7 to reverse and reset, so that the plastic bucket is unloaded without manual operation, the labor intensity is reduced, and the work efficiency is improved.

[0024] When the piston rod of the push cylinder 15 is retracted to drive the sliding table 4 to move right along the slide rail 3 to reset, the limiting sliding block 18 blocks the sliding table 4, the piston rod of the push cylinder 15 continues to retract to pull the clamping plate one 5 to the right, the elastic expansion rod 16 is compressed, so that the clamping plate two 7 is away from the clamping plate one 5 and is opened, which is convenient for loading the plastic bucket between the clamping plate two 7 and the clamping plate one 5.

[0025] Embodiment 2

[0026] As shown in Figure 1 , Figure 4 and Figure 6 , on the basis of embodiment 1, the sliding sleeve 11, the positioning pin 12, the spherical sliding end 13 and the guide block 14 are further included, the sliding sleeve 11 is installed on the sliding table 4, the positioning pin 12 is vertically and slidingly inserted into the sliding sleeve 11, the upper end of the positioning pin 12 is provided with a plug pin which is movably inserted into the positioning hole of the rotating shaft 6, the lower end of the positioning pin 12 is provided with the spherical sliding end 13, the guide block 14 is installed on the workbench 1, the right side of the guide block 14 is provided with an inclined surface, and the right end of the guide block 14 extends out of the right side of the rack 9.

[0027] The upper end of the positioning pin 12 is inserted into the positioning hole of the rotating shaft 6 to position and lock the rotating shaft 6 and the second clamping plate 7, improve the stability of the second clamping plate 7, and before the gear 8 meets the rack 9, the spherical sliding end 13 slides along the inclined surface of the guide block 14 to drive the positioning pin 12 to rise, so that the latch of the positioning pin 12 is pulled out of the hole of the rotating shaft 6, and at this time the rotating shaft 6 is unlocked, and when the gear 8 is engaged with the rack 9, the rotating shaft 6 can drive the second clamping plate 7 to overturn the material, improving the practicability.

[0028] Embodiment 3

[0029] As shown in Figure 2 , Figure 3 and Figure 7 , on the basis of embodiment 1, it further includes a sliding rod 20, a sliding block 21, a jacking rod 22, and a second pushing cylinder 23, a fertilizer port is arranged on the workbench 1, the fertilizer port is located below the shovel 2, the sliding rod 20 is vertically installed on the lower end face of the workbench 1, the sliding block 21 is slidingly installed on the sliding rod 20, the lower end of the jacking rod 22 is rotationally connected with the sliding block 21, the upper end of the jacking rod 22 is rotationally connected with the middle lower end face of the shovel 2, one end of the second pushing cylinder 23 is connected with the workbench 1, and the other end of the second pushing cylinder 23 is connected with the sliding block 21; when the piston rod of the second pushing cylinder 23 is elongated or shortened, the sliding block 21 is driven to ascend or descend along the sliding rod 20, when the sliding block 21 is raised, the blade of the shovel 2 is pushed upward through the jacking rod 22, and when the sliding block 21 is lowered, the blade of the shovel 2 is pulled downward through the jacking rod 22, so as to adjust the height of the blade of the shovel 2, adapt to the bottom protrusions of plastic barrels of different heights, and improve the versatility.

[0030] As shown in Figures 1 to 7As shown, the utility model discloses a kind of plastic barrel injection moulding barrel body protrusion elimination device, when working, first sliding table 4 is located at the right part of workbench 1, plastic barrel is loaded between clamping plate one 5 and clamping plate two 7, the piston rod of push cylinder 15 is elongated and left push clamping plate one 5, so that plastic barrel is moved left by clamping plate two 7 and rotating shaft 6 push sliding table 4, when plastic barrel passes shovel knife 2, the cutting edge of shovel knife 2 cuts off and removes the protrusion of plastic barrel bottom, then the piston rod of push cylinder 15 is elongated and continues to push clamping plate one 5 and sliding table 4 left, before gear 8 meets rack 9, spherical sliding end 13 is slid along the inclined surface of guide block 14, drive locating pin 12 to rise, so that the latch of locating pin 12 is pulled out from the insertion hole of rotating shaft 6, at this time rotating shaft 6 is unlocked, then when gear 8 and rack 9 meet and start to engage, so that rack 9 drives gear 8 to rotate, gear 8 drives rotating shaft 6 to rotate, rotating shaft 6 drives clamping plate two 7 to overturn left and open, after plastic barrel loses the limit of clamping plate two 7, be pushed out sliding table 4 and the left side of workbench 1 by clamping plate one 5, realize automatic unloading, the piston rod of push cylinder 15 is retracted and drives clamping plate one 5 and sliding table 4 to reset, during this process, gear 8 and rotating shaft 6 are reversed and reset by the engagement of rack 9, after spherical sliding end 13 is separated from guide block 14, locating pin 12 is inserted into insertion hole again and locks rotating shaft 6, finally limit sliding block 18 limits and blocks sliding table 4, the piston rod of push cylinder 15 continues to retract, clamping plate one 5 is pulled right, elastic telescopic rod 16 is compressed, so that clamping plate two 7 is away from clamping plate one 5 and open, new plastic barrel is loaded between clamping plate two 7 and clamping plate one 5.

[0031] The main functions realized by the utility model are as follows:

[0032] 1. Automatic barrel taking and unloading can reduce labor intensity and improve work efficiency.

[0033] 2. The height of the cutting edge of shovel knife 2 can be adjusted to adapt to the protrusions at the bottom of plastic barrels of different heights, improving universality.

[0034] 3. By setting elastic telescopic rod 16, the clamping force on the plastic barrel is maintained, and the plastic barrel is prevented from being damaged.

[0035] The installation mode, the connecting mode or the setting mode of the plastic barrel injection molding barrel body protrusion eliminating device are common mechanical modes, and any mode that can achieve the beneficial effects can be implemented; the workbench 1, the shovel knife 2, the sliding table 4, the clamping plate one 5, the rotating shaft 6, the clamping plate two 7, the gear 8, the rack 9, the torsion spring 10, the sliding sleeve 11, the push cylinder 15, the elastic telescopic rod 16, the push ring 17, the limiting sliding block 18, the locking bolt 19, the sliding rod 20, the sliding block 21 and the push cylinder two 23 of the plastic barrel injection molding barrel body protrusion eliminating device are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, and the technical personnel in the field do not need to pay creative labor.

[0036] All the technical and scientific terms used in the present application have the same meaning as that generally understood by the technical personnel in the technical field to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The term "and / or" used in the present application includes any and all combinations of one or more related listed items.

[0037] The above is only the preferred embodiment of the present application, and it should be pointed out that, for ordinary technical personnel in the technical field, several improvements and modifications can be made without departing from the technical principles of the present application, and these improvements and modifications should be regarded as the protection scope of the present application.

Claims

1. A device for eliminating protrusions in the injection-molded body of a plastic bucket, comprising a workbench (1) and a scraper (2), the scraper (2) being mounted on the workbench (1); characterized in that, It also includes a slide rail (3), a slide table (4), a clamping plate one (5), a rotating shaft (6), a clamping plate two (7), a gear (8), a rack (9), and a pushing mechanism. The shovel (2) is located in the middle of the workbench (1), with the cutting edge of the shovel (2) facing the right side of the workbench (1). The slide rail (3) is installed on the upper surface of the workbench (1). The slide table (4) is slidably installed on the slide rail (3) by a slider. The clamping plate one (5) is located on the right side of the slide table (4). The pushing mechanism is installed on the workbench (1). The upper part of the drive mechanism is connected to the first clamp (5) for transmission. The rotating shaft (6) is elastically rotated and installed on the left side of the slide (4). The second clamp (7) is installed in the middle of the rotating shaft (6). The second clamp (7) is arranged opposite to the first clamp (5). The second clamp (7) and the first clamp (5) cooperate to clamp the plastic bucket. The gear (8) is concentrically installed at the end of the rotating shaft (6). The rack (9) is installed on the left end of the worktable (1). The rack (9) is aligned with the gear (8). The rack (9) can mesh with the gear (8).

2. The device for eliminating protrusions in injection-molded plastic buckets as described in claim 1, characterized in that, It also includes a torsion spring (10), which is mounted on the rotating shaft (6). The torsion spring (10) is elastically connected to the slide (4). The elastic force of the torsion spring (10) causes the rotating shaft (6) to drive the clamp plate (7) to a vertical position.

3. The device for eliminating protrusions in injection-molded plastic buckets as described in claim 1, characterized in that, It also includes a sliding sleeve (11), a positioning pin (12), a spherical sliding end (13), and a guide block (14). The sliding sleeve (11) is installed on the slide table (4). The positioning pin (12) is vertically slidably inserted into the sliding sleeve (11). The upper end of the positioning pin (12) is provided with a pin, which is movably inserted into the positioning hole of the rotating shaft (6). The lower end of the positioning pin (12) is provided with a spherical sliding end (13). The guide block (14) is installed on the worktable (1). The right side of the guide block (14) is provided with an inclined surface, and the right end of the guide block (14) extends out of the right side of the rack (9).

4. The device for eliminating protrusions in injection-molded plastic buckets as described in claim 1, characterized in that, The pushing mechanism includes a push cylinder (15), an elastic telescopic rod (16), and a push ring (17). The fixed end of the push cylinder (15) is installed on the right end of the worktable (1). The end of the piston rod of the push cylinder (15) slides through the right side of the slide table (4). The elastic telescopic rod (16) is installed on the end of the piston rod of the push cylinder (15). The elastic telescopic rod (16) is connected to the clamping plate (5). The push ring (17) is slidably fitted on the piston rod of the push cylinder (15). The push ring (17) is located on the right side of the slide table (4).

5. The device for eliminating protrusions in injection-molded plastic buckets as described in claim 4, characterized in that, It also includes a limit slider (18) and a locking bolt (19). The limit slider (18) is mounted on the slide rail (3), and the locking bolt (19) is rotatably screwed onto the limit slider (18). The locking bolt (19) locks the limit slider (18) onto the slide rail (3). The limit slider (18) is located on the right side of the slide table (4).

6. The device for eliminating protrusions in injection-molded plastic buckets as described in claim 1, characterized in that, It also includes a slide rod (20), a slider (21), a push rod (22), and a second push cylinder (23). A fertilizer inlet is provided on the workbench (1), which is located below the shovel (2). The slide rod (20) is vertically installed on the lower end face of the workbench (1). The slider (21) is slidably installed on the slide rod (20). The lower end of the push rod (22) is rotatably connected to the slider (21), and the upper end of the push rod (22) is rotatably connected to the lower end face of the middle part of the shovel (2). One end of the second push cylinder (23) is connected to the workbench (1), and the other end of the second push cylinder (23) is connected to the slider (21).

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