Automated production line for fine processing of oil drums

Abstract

The present invention relates to an automated production line for the finishing of oil drums, which is applied in the technical field of automated production of oil drums. It includes a breaking device for disconnecting adjacent oil drums, a handling robotic arm for handling oil drums, a trimming device for precisely trimming oil drums, and a capping device for capping oil drums. A number of station racks for shaping and cooling oil drums are arranged around the handling robotic arm. The trimming device includes a bracket for placing an oil drum, clamping plates installed on the bracket for clamping the oil drum, and a trimming robotic arm for trimming. A trimming knife is provided on the trimming robotic arm. The advantages of the present invention are as follows: By using various robotic arms instead of manual labor, full-automatic production is achieved, the production efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic production of oil drums, and more specifically, it relates to an automatic production line for fine processing of oil drums. Background Art

[0002] The 200-liter large oil drums produced industrially are generally used to store petroleum. For construction machinery, since it is impossible to refuel at a gas station, petroleum is generally transported to the construction site through oil drums for refueling the construction machinery.

[0003] As Figure 10 shown, a large oil drum includes a barrel body 91, a bottle mouth 92 and a bottle cap. After the oil drum is blow-molded, there will be surplus materials at both ends that need to be trimmed, and the rounded corners of the oil drum also need to be trimmed. The existing processing technology is to transport the oil drums just formed from the injection molding machine to various processing equipment for batch processing, and manual handling is required in the middle, and full-automatic production cannot be achieved, which further causes problems such as increased labor costs and limited production efficiency. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an automatic production line for fine processing of oil drums, and its advantage is that, through various robotic arms replacing manual labor, full-automatic production is realized, the production efficiency is improved, and the labor cost is reduced.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: an automatic production line for fine processing of oil drums, including a breaking device for disconnecting adjacent oil drums, a handling robotic arm for handling oil drums, a trimming device for finely trimming oil drums, and a capping device for screwing caps on oil drums. A number of station racks for shaping and cooling oil drums are arranged around the handling robotic arm. The trimming device includes a bracket for placing the oil drum, clamping plates installed on the bracket for clamping the oil drum, and a trimming robotic arm for trimming. A trimming knife is provided on the trimming robotic arm.

[0006] The above settings achieve the following effects: The oil drums are automatically transferred to each processing device through the handling robotic arm, and throughout the process, various robotic arms replace manual labor to achieve automated processing and production. Compared with the existing production method, the intermediate handling link is reduced, the production efficiency is improved, and the labor cost is reduced at the same time.

[0007] Further settings: The bracket is fixed with positioning plates symmetrically arranged in a V shape. The docking surface of the clamping plate with the oil drum is provided with an arc-shaped positioning surface that fits the oil drum. The clamping plate is rotatably connected to the positioning plate, and the bracket is fixed with a first cylinder for driving the clamping plate to rotate.

[0008] The effects achieved by the above settings: The positioning plate is V-shaped, and the clamping plate and the positioning plate are V-shaped, thus fixing the oil barrel. The first cylinder applies a thrust to the clamping plate, causing the clamping plate to press tightly against the oil barrel, and preventing the oil barrel from moving and rotating through the friction between the clamping plate and the oil barrel.

[0009] Further settings: A conveyor belt is horizontally provided inside the bracket, and the waste trimmed from the oil barrel falls on the conveyor belt and is conveyed away by the conveyor belt.

[0010] The effects achieved by the above settings: The waste is conveyed away, preventing the waste from accumulating at the trimming device.

[0011] Further settings: A weighing machine for weighing the trimmed oil barrel is provided on one side of the trimming device, and a conveying assembly for conveying unqualified oil barrels out is provided on one side of the weighing machine.

[0012] The effects achieved by the above settings: The weighing machine is used to check whether the oil barrel is qualified, avoiding overweight or substandard weight of the oil barrel.

[0013] Further settings: The capping device includes a fixed frame, clamping jaws provided on the fixed frame for fixing the oil barrel, and a capping robotic arm for capping. A vibrating hopper for conveying bottle caps is provided on one side of the fixed frame. After the capping robotic arm clamps the bottle cap on the vibrating hopper, it screws the bottle cap tightly onto the oil barrel.

[0014] The effects achieved by the above settings: The capping robotic arm replaces manual capping, further improving the degree of automation.

[0015] Further settings: A positioning device for positioning the oil barrel is provided on the fixed frame. The positioning device includes a sliding plate horizontally slidably connected to the fixed frame, a positioning block vertically slidably connected to the sliding plate and capable of being inserted into the bottle mouth of the oil barrel, and a lifting cylinder fixed on the sliding plate for driving the positioning block to move up and down.

[0016] The effects achieved by the above settings: Since the position of the oil barrel will have a slight deviation, the positioning device corrects the oil barrel to ensure that the oil barrel and the bottle cap can be docked.

[0017] Further configuration: a connecting rod assembly for driving the jaws to open and close is provided on the fixed frame, the connecting rod assembly includes a connecting arm located between the two jaws, a connecting rod hinged at both ends of the connecting arm, the two connecting rods are respectively hinged on different jaws, a connecting plate is fixed on the fixed frame, the middle position of the connecting arm is rotatably connected to the connecting plate, a first slide rail is fixed on the connecting plate, the jaws are slidably connected to the slide rail, a telescopic cylinder is fixed on the connecting plate, the piston rod of the telescopic cylinder is fixedly connected to one of the jaws, when the telescopic cylinder drives the jaw to move, the jaw pulls the connecting rod to rotate the connecting arm, and further causes the other connecting rod to move synchronously, so that the two jaws are brought closer to or farther away from each other.

[0018] The above arrangement achieves the following effects: during the capping process, the oil barrel cannot rotate, the clamping claw holds the oil barrel, and the friction between the oil barrel and the clamping claw is used to prevent the oil barrel from rotating during the capping process. The setting of the connecting rod assembly enables the two clamping claws to move synchronously, avoiding the deviation of the oil barrel caused by the asynchronous clamping claws.

[0019] Further configuration: a second slide rail is fixed on the fixed frame, the connecting plate is slidably connected to the second slide rail, a second cylinder for driving the connecting plate to slide is fixed on the fixed frame, and when the piston rod of the second cylinder is retracted, the clamp is completely offset from the oil barrel.

[0020] The above arrangement achieves the following effect: after the oil barrel is screwed with the bottle cap, it needs to be transported away. The setting of the clamp affects the displacement of the oil barrel. Therefore, the pneumatic clamp and the oil barrel are completely staggered by the second cylinder, thereby not hindering the movement of the oil barrel.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Automated production improves production efficiency and reduces manual labor;

[0023] 2. The setting of various robotic arms ensures the processing accuracy and quality of the oil barrels. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of this embodiment;

[0025] Figure 2 is a schematic diagram of the structure of the embodiment from a top view;

[0026] Figure 3 is a schematic structural diagram of a separating device and a trimming device of this embodiment;

[0027] Figure 4 is a schematic structural diagram of the trimming device of this embodiment;

[0028] Figure 5 is a schematic structural diagram of the workbench rack and the handling robotic arm of this embodiment;

[0029] Figure 6 is a schematic structural diagram of the cap screwing device and the bag sealing device of this embodiment;

[0030] Figure 7 is a schematic structural diagram of the cap screwing device of this embodiment;

[0031] Figure 8 is a schematic structural diagram showing the positioning device and the gripper of this embodiment;

[0032] Figure 9 is a schematic structural diagram showing the connecting rod assembly and the gripper of this embodiment;

[0033] Figure 10 is a schematic structural diagram of an existing oil barrel.

[0034] In the figure: 1, injection molding machine; 2, cutting device; 21, cutter; 22, trimming rack; 3, trimming device; 31, bracket; 32, positioning plate; 33, trimming robotic arm; 34, clamping plate; 35, first cylinder; 36, conveyor belt; 4, weighing machine; 41, conveying assembly; 5, workbench rack; 51, plunger; 6, cap screwing device; 60, cap screwing robotic arm; 61, fixing frame; 62, gripper; 63, connecting rod assembly; 631, connecting arm; 632, connecting rod; 633, connecting plate; 634, first slide rail; 635, telescopic cylinder; 64, positioning device; 641, slide plate; 642, lifting cylinder; 643, positioning block; 65, vibrating hopper; 66, second slide rail; 67, second cylinder; 7, bag sealing device; 8, handling robotic arm; 91, barrel body; 92, bottle mouth. Specific Embodiments

[0035] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the protection scope of the present invention.

[0036] Embodiment 1: Referring to Figure 1-2 , an automated production line for fine machining of oil barrels sequentially includes an injection molding machine 1 according to the production process, a cutting device 2 for disconnecting adjacent oil barrels, a trimming device 3 for finely trimming the oil barrels, a weighing machine 4 for weighing the trimmed oil barrels, a workbench rack 5 for shaping and cooling the oil barrels, a cap screwing device 6 for screwing caps on the oil barrels, and finally a bag sealing device 7 for bagging and sealing the oil barrels. The handling of the oil barrels is achieved by a handling robotic arm 8, enabling the oil barrels to reach each device and realizing automated production.

[0037] Referring to the reference figure, first, the oil barrel is injection-molded by the injection molding machine 1. Since there will be surplus materials during the injection molding process, the oil barrel is segmented by the segmentation device 2. The handling robotic arm 8 transports the oil barrel from the segmentation device 2 to the trimming device 3, and the trimming device 3 trims the oil barrel so that the edges and corners of the oil barrel become rounded, the mouth of the oil barrel is the same as the set size, and the upper and lower end faces of the oil barrel are flat. After trimming, the handling robotic arm 8 transports the oil barrel to the weighing machine 4 to weigh the oil barrel and check whether the oil barrel meets the standard weight. The qualified oil barrel is transported to the workbench 5 for cooling. There are multiple workbenches 5, which can cool multiple oil barrels to avoid affecting the processing efficiency due to too long cooling time. After the oil barrel is cooled and shaped, the handling robotic arm 8 transports the oil barrel from the workbench 5 to the capping device 6. After the bottle cap is screwed onto the mouth of the bottle, the bagging device 7 bags and packs the oil barrel.

[0038] Referring to Figure 3 , the segmentation device 2 includes a trimming frame 22 and a cutter 21 slidably connected to the trimming frame 22. The cutter 21 is driven by a cylinder to realize the automatic shearing of the oil barrel off the production line.

[0039] Referring to Figure 3-4 , the trimming device 3 includes a bracket 31, clamping plates 34 installed on the bracket 31 for clamping the oil barrel, and a trimming robotic arm 33 for trimming. A trimming knife is fixedly installed on the trimming robotic arm 33, and the oil barrel is trimmed by the trimming knife. Two positioning plates 32 are fixedly installed on the bracket 31, and the two positioning plates 32 are symmetrically arranged in a V shape. The oil barrel is horizontally placed on the positioning plates 32. The clamping plates 34 are rotatably connected to the positioning plates 32, and the clamping plates 34 and the positioning plates 32 form a V shape, so that the oil barrel can be fixed. The docking surface of the clamping plates 34 with the oil barrel is set as an arc surface and fits with the oil barrel. A first cylinder 35 is hinged on the side of the clamping plates 34 away from the oil barrel. The first cylinder 35 is used to drive the oil barrel to rotate automatically, and at the same time, the clamping plates 34 can be pressed against the oil barrel, and the friction between the oil barrel and the clamping plates 34 is used to prevent the oil barrel from rotating, ensuring that the position of the oil barrel is stationary during the fine trimming process.

[0040] Referring to Figure 3 , the bracket 31 is a frame made of columns and crossbeams. A conveyor belt 36 is horizontally arranged inside the bracket 31. The waste materials trimmed from the oil barrel fall on the conveyor belt 36 and are conveyed out through the conveyor belt 36. A weighing machine 4 is arranged on one side of the bracket 31. The weighing machine 4 can be an electronic platform scale. The oil barrel is weighed by the weighing machine 4 to ensure that the weight of the oil barrel meets the standard weight. A conveying component 41 parallel to the conveyor belt 36 is arranged on one side of the weighing machine 4. The conveying component 41 can be a conveyor belt or a belt conveyor.

[0041] Referring to Figure 5The work station frame 5 is a frame composed of a plurality of columns and beams. A plunger 51 is provided at the upper end of the work station frame 5 and above the oil barrel. The plunger 51 can be inserted into the bottle mouth of the oil barrel in the vertical direction, so as to ensure that the bottle mouth of the oil barrel will not be deformed during the cooling process. The sliding of the plunger 51 is driven by a cylinder.

[0042] refer to Figure 6-7 The capping device 6 includes a fixing frame 61, a clamping claw 62 for fixing the oil barrel arranged on the fixing frame 61, and a capping mechanical arm 60 for capping. A vibrating material distribution plate 65 for conveying bottle caps is arranged on one side of the fixing frame 61, and a receiving platform is arranged on the fixing frame 61, on which the oil barrel falls. When the oil barrel needs to be capped, the clamping claw 62 clamps the oil barrel, and the friction between the oil barrel and the clamping claw 62 is used to prevent the oil barrel from rotating. After the capping mechanical arm 60 clamps the bottle cap on the vibrating material distribution plate 65, the bottle cap is screwed on the oil barrel. After the capping is completed, the clamping claw 62 is separated from the oil barrel, so that the oil barrel can be removed.

[0043] refer to Figure 7-8 The fixed frame 61 is provided with a positioning device 64 for positioning the oil barrel. Since the position of the oil barrel will have a certain error during the transportation process, especially the oil barrel undergoes multiple transportations from successful injection molding to screwing the cap, the errors will be accumulated. The positioning device 64 is used to ensure that the bottle mouth of the oil barrel occupies an accurate position on the fixed frame 61. The positioning device 64 includes a slide plate 641 horizontally slidably connected to the fixed frame 61, and a positioning block 643 vertically slidably connected to the slide plate 641 and can be inserted into the bottle mouth of the oil barrel. The positioning block 643 is conical, and a lifting cylinder 642 for driving the positioning block 643 to move up and down is fixed on the slide plate 641. First, the slide plate 641 slides to the set position, and then the lifting cylinder 642 drives the positioning block 643 to move downward and can be inserted into the bottle mouth of the oil barrel, and finally the bottle mouth of the oil barrel is coaxial with the positioning block 643, so that the oil barrel can be slightly displaced, which is convenient for the bottle cap and the oil barrel to be accurately docked. After the oil drum is positioned, the positioning block 643 is separated from the oil drum and the slide plate 641 is staggered from the oil drum, which is convenient for subsequent screwing of the cap.

[0044] refer to Figure 7-9, a connecting rod assembly 63 for driving the clamping jaws 62 to open and close is provided on the fixing bracket 61. The connecting rod assembly 63 enables the clamping jaws 62 to approach or move away from each other synchronously. The connecting rod assembly 63 includes a connecting arm 631 located between the two clamping jaws 62 and connecting rods 632 hinged at both ends of the connecting arm 631. The two connecting rods 632 are respectively hinged on different clamping jaws 62. A connecting plate 633 is fixed on the fixing bracket 61. The middle position of the connecting arm 631 is rotatably connected to the connecting plate 633. A first slide rail 634 is fixed on the connecting plate 633. The clamping jaws 62 are slidably connected to the slide rail. A telescopic cylinder 635 is fixed on the connecting plate 633. The piston rod of the telescopic cylinder 635 is fixedly connected to one of the clamping jaws 62. When the telescopic cylinder 635 drives the clamping jaw 62 to move, the clamping jaw 62 pulls the connecting rod 632 to make the connecting arm 631 rotate, further enabling the other connecting rod 632 to move synchronously, thereby realizing the mutual approach or separation of the two clamping jaws 62.

[0045] Reference Figure 6-9 , since the oil drum needs to be bagged and packed after capping, and at the same time the oil drum needs to be removed from the fixing bracket 61, the clamping jaws 62 need to be completely staggered from the oil drum to avoid the clamping jaws 62 affecting the handling of the oil drum. Therefore, a second slide rail 66 is fixed on the fixing bracket 61. The connecting plate 633 is slidably connected to the second slide rail 66. A second cylinder 67 for driving the sliding of the connecting plate 633 is fixed on the fixing bracket 61. When the piston rod of the second cylinder 67 retracts, the clamping jaws 62 are completely staggered from the oil drum.

[0046] Reference Figure 6 , the bagging device 7 is integrally provided with the capping device 6. After the final capping of the oil drum, it can be directly bagged and sealed.

[0047] The implementation principle of the above embodiment is as follows: First, the oil drum is injection-molded by the injection molding machine 1 and then segmented by the segmentation device 2; the handling robotic arm 8 transports the oil drum from the segmentation device 2 to the trimming device 3, and the trimming device 3 trims the oil drum to make the edges and corners of the oil drum into rounded corners, the bottle mouth of the oil drum is the same as the set size, and the upper and lower end faces of the oil drum are flat; after trimming, the oil drum is weighed to check whether the oil drum meets the standard weight. After meeting the standard, the oil drum is transported to the workbench 5 for cooling; after the oil drum is cooled and shaped, the handling robotic arm transports the oil drum from the workbench 5 to the capping device 6. After the bottle cap is screwed onto the bottle mouth, the bagging device 7 bags and packs the oil drum. The whole process realizes automated production.

[0048] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. An automated production line for the finishing of oil drums, characterized in that: it includes a breaking device (2) for disconnecting the oil drums, a handling robotic arm (8) for handling the oil drums, a trimming device (3) for precisely trimming the oil drums, and a capping device (6) for capping the oil drums. A number of station racks (5) for shaping and cooling the oil drums are arranged around the handling robotic arm (8). The trimming device (3) includes a bracket (31) for placing the oil drum, clamping plates (34) installed on the bracket (31) for clamping the oil drum, and a trimming robotic arm (33) for trimming. A trimming knife is provided on the trimming robotic arm (33); on the bracket (31), positioning plates (32) symmetrically arranged in a V shape are fixed. An arc-shaped positioning surface that fits the oil drum is provided on the docking surface of the clamping plate (34) with the oil drum. The clamping plate (34) is rotatably connected to the positioning plate (32). A first cylinder (35) for driving the clamping plate (34) to rotate is fixed on the bracket (31). The clamping plate (34) and the positioning plate (32) form a V shape. The docking surface of the clamping plate (34) with the oil drum is set as an arc surface and fits the oil drum; a conveyor belt (36) is horizontally arranged inside the bracket (31). The waste materials trimmed from the oil drum fall on the conveyor belt and are conveyed away by the conveyor belt (36); on one side of the trimming device (3), a weighing machine (4) for weighing the trimmed oil drums is provided. On one side of the weighing machine (4), a conveying assembly (41) for conveying out unqualified oil drums is provided; the capping device (6) includes a fixed frame (61), clamping jaws (62) provided on the fixed frame (61) for fixing the oil drum, and a capping robotic arm (60) for capping. A vibrating hopper (65) for conveying bottle caps is provided on one side of the fixed frame (61). After the capping robotic arm (60) clamps the bottle caps on the vibrating hopper (65), it screws the bottle caps tightly onto the oil drum; a positioning device (64) for positioning the oil drum is provided on the fixed frame (61). The positioning device (64) includes a sliding plate (641) horizontally slidably connected to the fixed frame (61), and a positioning block (643) vertically slidably connected to the sliding plate (641) and capable of being inserted into the bottle mouth of the oil drum. A lifting cylinder (642) for driving the positioning block (643) to move up and down is fixed on the sliding plate (641); A connecting rod assembly (63) for driving the clamping jaws (62) to open and close is provided on the fixing bracket (61). The connecting rod assembly (63) includes a connecting arm (631) located between the two clamping jaws (62), and connecting rods (632) hinged at both ends of the connecting arm (631). The two connecting rods (632) are respectively hinged on different clamping jaws (62). A connecting plate (633) is fixed on the fixing bracket (61). The middle position of the connecting arm (631) is rotatably connected to the connecting plate (633). A first sliding rail (634) is fixed on the connecting plate (633). The clamping jaw (62) is slidably connected to the sliding rail. A telescopic cylinder (635) is fixed on the connecting plate (633). The piston rod of the telescopic cylinder (635) is fixedly connected to one of the clamping jaws (62). When the telescopic cylinder (635) drives the clamping jaw (62) to move, the clamping jaw (62) pulls the connecting rod (632) to make the connecting arm (631) rotate, and further makes the other connecting rod (632) move synchronously, so that the two clamping jaws (62) approach or move away from each other. A second sliding rail (66) is fixed on the fixing bracket (61). The connecting plate (633) is slidably connected to the second sliding rail (66). A second cylinder (67) for driving the connecting plate (633) to slide is fixed on the fixing bracket (61). When the piston rod of the second cylinder (67) retracts, the clamping jaw (62) is completely staggered from the oil barrel.

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