阅读说明：本技术 一种塑料桶自动放盖机及放盖方法 (Automatic cover placing machine and method for plastic barrel ) 是由 齐继阳 张艳琼 刘亮 罗生华 殷宝吉 于 2020-06-05 设计创作，主要内容包括：本发明提供一种塑料桶自动放盖机,包括储盖部件、取盖部件、定位部件、压盖部件、塑料桶和流水线；所述流水线用于输送所述塑料桶,所述取盖部件、所述定位部件和所述压盖部件沿所述流水线的输送方向依次布置,所述储盖部件布置在所述流水线一侧位于所述取盖部件的取盖范围内。本发明提供的塑料桶自动放盖机取盖、定位、压扣全自动,生产效率高,工人劳动强度小。通过桶定位组件和盖定位组件实现塑料桶和塑料桶盖的定位,确保塑料桶盖能准确地卡扣在塑料桶上。通过4只真空吸盘吸取塑料通过盖,确保了吸附的可靠性。(The invention provides an automatic cover placing machine for plastic barrels, which comprises a cover storage component, a cover taking component, a positioning component, a cover pressing component, plastic barrels and a production line, wherein the cover taking component is arranged on the cover storage component; the assembly line is used for conveying the plastic barrels, the cover taking component, the positioning component and the pressing component are sequentially arranged along the conveying direction of the assembly line, and the cover storing component is arranged on one side of the assembly line and located in the cover taking range of the cover taking component. The automatic cover placing machine for the plastic barrel provided by the invention is full-automatic in cover taking, positioning and pressing, high in production efficiency and low in labor intensity of workers. The plastic barrel and the plastic barrel cover are positioned through the barrel positioning assembly and the cover positioning assembly, and the plastic barrel cover can be accurately buckled on the plastic barrel. The reliability of the adsorption is ensured by sucking the plastic through the cover by 4 vacuum chucks.)

1. The utility model provides an automatic machine of putting lid of plastic drum which characterized in that: comprises a cover storage component (1), a cover taking component (2), a positioning component (3), a cover pressing component (4), a plastic barrel (5) and a production line (6); the cover storage component (1) comprises a plastic barrel cover (11) and a bracket for placing the plastic barrel cover (11); the cap taking component (2) comprises a vacuum sucker (21), a rotating arm (22), a cap taking cylinder (23) and an upright post component (24), wherein the rotating arm (22) is rotatably installed at the top end of the upright post component (24), the cap taking cylinder (23) is vertically installed at the tail end of the rotating arm (22), and the vacuum sucker (21) is installed at the piston rod end of the cap taking cylinder (23); the positioning component (3) comprises a cylinder (31), a cover positioning component (32), a barrel positioning component (33), a top plate (34) and upright columns (35), wherein the four upright columns (35) are arranged in parallel, the lower part of the top plate (34) forms a supporting frame of the positioning component (3), the cylinder (31) is arranged on the top plate (34), a piston rod of the cylinder (31) penetrates through the top plate (34), the cover positioning component (32) comprises a claw (321), a mounting plate (322), a linear bearing (323), an electromagnetic chuck (324), a movable guide rail (325) and a static guide rail (326), the two static guide rails (326) are respectively arranged at two ends of one side of the mounting plate (322), the electromagnetic chuck (324) is arranged at the middle position of the mounting plate (322) between the static guide rails (326), each static guide rail (326) is provided with one movable guide rail (325) in a sliding manner, each movable guide rail (325) is fixedly provided with one first paw (321), a spring is connected between the two movable guide rails (325), four corners of the first mounting plate (322) are respectively provided with one first linear bearing (323), when the electromagnetic chuck (324) is electrified, the movable guide rails (325) move towards the center due to the action of electromagnetic force, so that the two first paws (321) are driven to approach towards the center, and the plastic barrel cover (11) is positioned, when the electromagnetic chuck (324) is electrified, the movable guide rails (325) move towards two sides due to the action of spring force, so that the two first paws (321) are driven to move towards two sides, and the positioning and clamping of the plastic barrel cover (11) are released, the barrel positioning component (33) comprises a second mounting frame (331), a second air cylinder (332), a connecting rod (333) and a second claw (334), the second mounting frame (331) comprises a rear plate (3311), two arms arranged at the front part of the rear plate (3311) and a rotary small shaft (3312) arranged at the tail ends of the two arms, the second air cylinder (332) is arranged on the rear plate (3311), a piston rod of the second air cylinder (332) penetrates through the rear plate (3311), the tail end of the piston rod is connected with the connecting rod (333), one end of the second claw (334) is provided with a long hole (3341), the middle part of the second claw is provided with a positioning hole (3342), the other end of the second claw is provided with a clamping part matched with the plastic barrel (5), and the two second claws (334) are symmetrically hinged at the front ends of the two arms of the second mounting frame (331) through the positioning hole (3342) and the rotary small shaft (3312), the two second claws (334) are hinged to the connecting rod (333) through the strip-shaped holes (3341), the extension of a piston rod of the second air cylinder (332) can drive the two second claws (334) to be separated towards two sides or to be close towards the center so as to loosen or clamp the plastic barrel (5), the cover positioning component (32) is movably mounted on the four upright posts (35) through the first linear bearing (323), the barrel positioning component (33) is fixedly connected with the cover positioning component (32) through a rear plate (3311), the tail end of the piston rod of the first air cylinder (31) is connected with the first mounting plate (322) of the cover positioning component (32), and the extension of the piston rod of the first air cylinder (31) can drive the cover positioning component (32) and the barrel positioning component (33) to move up and down; the gland component (4) comprises a guide rod (41), a third air cylinder (42), a third mounting plate (43), a cross beam (44), a pressure plate (45) and a third upright post (46), the two third upright posts (46) and the cross beam (44) form a door-shaped frame of the gland component (4), the third mounting plate (43) is fixed on the cross beam (44), the third air cylinder (42) is mounted on the third mounting plate (43), the piston rod of the third cylinder (42) passes through a through hole in the middle of the third mounting plate (43), the tail end of a piston rod of the third air cylinder (42) is connected with the pressure plate (45), the pressing plate (45) is fixedly connected with the two guide rods (41), the guide rods (41) are installed on the third installation plate (43) in a penetrating mode through linear bearings, the piston rod of the third air cylinder (42) can stretch to drive the pressing plate (45) to move up and down; the assembly line (6) is used for conveying the plastic barrels (5), the cover taking component (2), the positioning component (3) and the pressing cover component (4) are sequentially arranged along the conveying direction of the assembly line (6), and the cover storage component (1) is arranged on one side of the assembly line (6) and is located in the cover taking range of the cover taking component (2).

2. An automatic cover placing machine for plastic barrels as claimed in claim 1, characterized in that: the support of the cover storage component (1) comprises a support table (13) and three guide columns (12) arranged on the support table (13) and surrounding the plastic barrel cover (11), wherein the plastic barrel cover (11) is stacked on the support table (13) among the three guide columns (12).

3. An automatic cover placing machine for plastic barrels as claimed in claim 1, characterized in that: the tail end of a piston rod of the cap taking air cylinder (23) is provided with four vacuum suckers (21).

4. An automatic cover placing machine for plastic barrels as claimed in claim 1, characterized in that: get lid spare (2) and still include thrust bearing (25) and swing cylinder (26), stand subassembly (24) top sets up cantilever supporting axle (241) and swing cylinder mounting panel (242), install on cantilever supporting axle (241) thrust bearing (25), swivel arm (22) are rotationally installed at stand subassembly (24) on cantilever supporting axle (241), swing cylinder (26) are installed stand subassembly (24) on swing cylinder mounting panel (242), the output pivot of swing cylinder (26) with the one end of swivel arm (22) links firmly mutually, the swing of the output pivot of swing cylinder (26) can drive swivel arm (22) wind cantilever supporting axle (241) rotate.

5. An automatic cover placing machine for plastic barrels as claimed in claim 1, characterized in that: bucket locating component (33) the one end of connecting rod (333) with No. two cylinder (332) are connected, and the other end is equipped with suddenly the axle, two No. two hand claw (334) elongated hole (3341) suit is in on suddenly the epaxial, the articulated installation of clamping part of No. two hand claw (334) with plastics bucket (5) cooperation arc is embraced the claw.

6. A cover placing method of an automatic cover placing machine for plastic barrels as claimed in any one of claims 1 to 5, characterized by comprising the following steps:

1) the swing cylinder (26) swings to drive the rotating arm (22) to rotate around the cantilever supporting shaft (241), so that the vacuum sucker (21) faces the plastic barrel cover (11) on the supporting platform (13) of the cap storage component (1), the piston rod of the cap taking cylinder (23) extends out to drive the vacuum sucker (21) to move downwards until the vacuum sucker (21) reliably contacts the plastic barrel cover (11), the vacuum sucker (21) sucks the plastic barrel cover (11), the retraction of the piston rod of the cap taking cylinder (23) drives the vacuum sucker (21) and the plastic barrel cover (11) sucked by the vacuum sucker to move upwards, the swing cylinder (26) swings in the opposite direction to drive the rotating arm (22) to rotate around the cantilever supporting shaft (241) in the opposite direction, and when the plastic barrel (5) of the assembly line (6) moves to be under the plastic barrel cover (11), the vacuum sucker (21) is used for placing the plastic barrel cover (11) on the plastic barrel (5);

2) the piston rod of the first cylinder (31) extends out to drive the cover positioning assembly (32) and the barrel positioning assembly (33) to move downwards, the piston rod of the second cylinder (332) of the barrel positioning assembly (33) retracts to drive the two second claws (334) to draw close to the center so as to position and clamp the plastic barrel (5), the electromagnetic chuck (324) is electrified, the movable guide rail (325) moves to the center so as to drive the two first claws (321) to draw close to the center, so that the plastic barrel cover (11) is positioned, the electromagnetic chuck (324) is electrified, the movable guide rail (325) moves to two sides due to the action of spring force, so as to drive the two first claws (321) to move to two sides, the positioning and clamping of the plastic barrel cover (11) are released, and the piston rod of the second cylinder (332) of the barrel positioning assembly (33) extends out, the two second hand claws (334) are driven to be opened towards two sides so as to loosen the clamping of the plastic barrel (5), the piston rod of the first air cylinder (31) is retracted to drive the cap positioning assembly (32) and the barrel positioning assembly (33) to move upwards, and the plastic barrel (5) and the plastic barrel cover (11) move to the next station along the production line (6) after positioning;

3) the piston rod of the third air cylinder (42) extends out to drive the pressing plate (45) to move downwards and extrude the pressing plate on the plastic barrel cover (11), the plastic barrel cover (11) is pressed and buckled on the plastic barrel (5), the piston rod of the third air cylinder (42) retracts to drive the pressing plate (45) to move upwards, the pressing of the plastic barrel (5) is released, and the cap placing process is completed.

Technical Field

The invention relates to an automatic cover placing machine for a plastic barrel, and belongs to the field of home decoration waterproof coating barreling production.

Background

In the waterproof coating field, the plastic drum is widely used for splendid attire water agent package and powder material package to the transportation of water agent package and powder material package, storage, the waterproof coating enterprise in the production process, pack into the plastic drum with water agent package and powder material after, all need cover the lid of plastics and the straining, consequently the enterprise all relies on the manual work to carry out the straining of plastic drum lid, and workman intensity of labour is big, and production efficiency is low.

Disclosure of Invention

The invention aims to provide an automatic cover placing machine and a cover placing method for a plastic barrel, aiming at the problems and the defects in the prior art.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

an automatic cover placing machine for plastic barrels comprises a cover storage component, a cover taking component, a positioning component, a cover pressing component, plastic barrels and a production line; the cover storage component comprises a plastic barrel cover and a bracket for placing the plastic barrel cover; the cap taking component comprises a vacuum chuck, a rotating arm, a cap taking cylinder and a stand column component, wherein the rotating arm is rotatably arranged at the top end of the stand column component, the cap taking cylinder is vertically arranged at the tail end of the rotating arm, and the vacuum chuck is arranged at the piston rod end of the cap taking cylinder; the positioning component comprises a first air cylinder, a cover positioning component, a barrel positioning component, a top plate and stand columns, wherein four stand columns are arranged below the top plate in parallel to form a supporting frame of the positioning component, the first air cylinder is arranged on the top plate, a piston rod of the first air cylinder penetrates through the top plate, the cover positioning component comprises a first claw, a first mounting plate, a first linear bearing, an electromagnetic chuck, a movable guide rail and a static guide rail, the two static guide rails are respectively arranged at two ends of one side of the first mounting plate, the electromagnetic chuck is arranged at the middle position of the first mounting plate between the two static guide rails, each static guide rail is provided with a movable guide rail in a sliding manner, each movable guide rail is fixedly provided with the first claw, a spring is connected between the two movable guide rails, and one linear bearing is respectively arranged at each of four corner positions of the first mounting plate, when the electromagnetic chuck is powered on, the movable guide rail moves towards the center under the action of electromagnetic force so as to drive the two first claws to approach towards the center, so that the plastic barrel cover is positioned, when the electromagnetic chuck is powered off, the movable guide rail moves towards two sides under the action of spring force so as to drive the two first claws to move towards two sides and loosen the positioning and clamping of the plastic barrel cover, the barrel positioning assembly comprises a second mounting frame, a second air cylinder, a connecting rod and a second claw, the second mounting frame comprises a rear plate, two arms arranged at the front part of the rear plate and a rotary small shaft arranged at the tail ends of the two arms, the second air cylinder is arranged on the rear plate, a piston rod of the second air cylinder penetrates through the rear plate, the tail end of the second air cylinder is connected with the connecting rod, and one end of the second claw is provided with a long hole, the middle part is provided with a positioning hole, the other end is provided with a clamping part matched with the plastic barrel, the two second claws are symmetrically hinged at the front ends of the two arms of the second mounting bracket through the positioning hole and the rotary small shaft, the two second claws are hinged with the connecting rod through the strip-shaped holes, the extension of the piston rod of the second cylinder can drive the two second claws to separate towards two sides or approach towards the center so as to loosen and clamp the plastic barrel, the cover positioning assembly is movably arranged on the four upright posts through the first linear bearing, the barrel positioning component is fixedly connected with the cover positioning component through a back plate, the tail end of a piston rod of the first cylinder is connected with the first mounting plate of the cover positioning component, the telescopic piston rod of the first cylinder can drive the cover positioning assembly and the barrel positioning assembly to move up and down; the gland component comprises guide rods, a third cylinder, a third mounting plate, a cross beam, a pressing plate and a third column, the two third columns and the cross beam form a door-shaped frame of the gland component, the third mounting plate is fixed on the cross beam, the third cylinder is mounted on the third mounting plate, a piston rod of the third cylinder penetrates through a through hole in the middle of the third mounting plate, the tail end of a piston rod of the third cylinder is connected with the pressing plate, the pressing plate is fixedly connected with the two guide rods, the guide rods penetrate through the third mounting plate through linear bearings, and the piston rod of the third cylinder can drive the pressing plate to move up and down through stretching; the assembly line is used for conveying the plastic barrels, the cover taking component, the positioning component and the pressing component are sequentially arranged along the conveying direction of the assembly line, and the cover storing component is arranged on one side of the assembly line and located in the cover taking range of the cover taking component.

Further, the support of the cover storage component comprises a support platform and three guide posts arranged on the support platform and surrounding the plastic barrel cover, and the plastic barrel cover is stacked on the support platform among the three guide posts.

Furthermore, four vacuum chucks are installed at the tail end of a piston rod of the cover taking cylinder.

Further, get the lid part and still include thrust bearing and swing cylinder, the stand subassembly top sets up cantilever supporting axle and swing cylinder mounting panel, install on the cantilever supporting axle thrust bearing, the swinging boom is rotationally installed at the stand subassembly on the cantilever supporting axle, swing cylinder installs the stand subassembly on the swing cylinder mounting panel, swing cylinder's output pivot with the one end of swinging boom links firmly mutually, swing cylinder's the swing of output pivot can drive the swinging boom winds the cantilever supporting axle rotates.

Further, one end of the connecting rod of the barrel positioning assembly is connected with the second cylinder, a protruding shaft is arranged at the other end of the connecting rod, the long holes of the two second claws are sleeved on the protruding shaft, and arc-shaped holding claws matched with the plastic barrel are hinged to clamping portions of the two second claws.

The invention also provides a cover placing method of the automatic cover placing machine for the plastic barrel, which comprises the following specific steps:

1) the swing cylinder swings to drive the rotating arm to rotate around the cantilever supporting shaft, so that the vacuum chuck faces the plastic barrel cover on the supporting platform of the cap storage component, the piston rod of the cap taking cylinder extends out to drive the vacuum chuck to move downwards until the vacuum chuck reliably contacts the plastic barrel cover, the vacuum chuck sucks the plastic barrel cover, the piston rod of the cap taking cylinder retracts to drive the vacuum chuck and the plastic barrel cover adsorbed by the vacuum chuck to move upwards, the swing cylinder swings in the opposite direction to drive the rotating arm to rotate in the opposite direction around the cantilever supporting shaft, and when the plastic barrel of the assembly line moves to the position under the plastic barrel cover, the vacuum chuck places the plastic barrel cover on the plastic barrel;

2) the extension of the first cylinder piston rod drives the cover positioning component and the barrel positioning component to move downwards, the retraction of the second cylinder piston rod of the barrel positioning component drives the two second claws to approach to the center so as to position and clamp the plastic barrel, the electromagnetic chuck is electrified, the movable guide rail moves towards the center so as to drive the two first claws to approach to the center, thereby realizing the positioning of the plastic barrel cover, the electromagnetic chuck is powered off, the movable guide rail moves towards two sides due to the action of spring force so as to drive the two first claws to move towards two sides, the positioning and clamping of the plastic barrel cover are released, the extension of the second cylinder piston rod of the barrel positioning component drives the two second claws to open towards two sides so as to release the clamping of the plastic barrel, and the retraction of the first cylinder piston rod, driving the cover positioning assembly and the barrel positioning assembly to move upwards, and moving the plastic barrel and the plastic barrel cover to the next station along the production line after positioning;

3) and the third cylinder piston rod extends out to drive the pressing plate to move downwards and extrude on the plastic barrel cover, the plastic barrel cover is buckled on the plastic barrel in a pressing mode, the third cylinder piston rod retracts to drive the pressing plate to move upwards, the pressing of the plastic barrel is loosened, and the cover placing process is completed.

The invention has the following advantages and beneficial effects:

1. the automatic cover placing machine for the plastic barrel is full-automatic in cover taking, positioning and pressing, high in production efficiency and low in labor intensity of workers.

2. The automatic plastic barrel cover placing machine realizes the positioning of the plastic barrel and the plastic barrel cover through the barrel positioning assembly and the cover positioning assembly, and ensures that the plastic barrel cover can be accurately buckled on the plastic barrel.

3. The automatic cover placing machine for the plastic bucket sucks plastic to pass through the cover through 4 vacuum chucks, and ensures the reliability of adsorption.

Drawings

FIG. 1 is a schematic structural view of an automatic cover placing machine for plastic drums in accordance with the practice of the present invention;

FIG. 2 is a schematic view of a lid assembly in accordance with the practice of the present invention;

FIG. 3 is a schematic view of the construction of a cover member in the practice of the invention;

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is a schematic structural view of a column assembly in the practice of the present invention;

FIG. 6 is a schematic view of a rotating arm in the practice of the present invention;

FIG. 7 is a schematic view of a positioning member in the practice of the present invention;

FIG. 8 is a schematic view of a cover positioning assembly in the practice of the present invention;

FIG. 9 is a schematic view of a barrel positioning assembly in the practice of the present invention;

FIG. 10 is a schematic view of a second embodiment of the present invention;

FIG. 11 is a schematic view of a second finger in accordance with the present invention;

FIG. 12 is a schematic view of a press lid component in the practice of the invention;

the reference numbers in the figures illustrate: 1. a lid storage member; 2. taking a cover part; 3. a positioning member; 4. a gland component 5 and a plastic barrel; 6. a production line; 11. a plastic barrel cover; 12. a guide post; 13. a support table; 21. a vacuum chuck; 22. a rotating arm; 23. taking a cover cylinder; 24. column assembly, 25, thrust bearing; 26. a swing cylinder; 221. a cylinder mounting hole; 222. rotating the hole; 241. a cantilever support shaft; 242. a swing cylinder mounting plate; 31. a first cylinder; 32. a lid positioning assembly; 33. a barrel positioning assembly; 34. a top plate; 35. a column; 321. a first paw; 322. a first mounting plate, 323 and a first linear bearing; 324. an electromagnetic chuck; 325. a movable guide rail; 326. a stationary guide rail; 331. a second mounting rack; 332. a second cylinder; 333. a connecting rod; 334. a second paw; 3311. a back plate; 3312. a small rotating shaft; 3341. a strip-shaped hole; 3342. and (7) positioning the holes.

Detailed Description

The technical solution of the present invention is further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, an automatic cover placing machine for plastic barrels comprises a cover storing component 1, a cover taking component 2, a positioning component 3, a cover pressing component 4, a plastic barrel 5 and a production line 6; as shown in fig. 2, the cover storage component 1 comprises a plastic cover 11 and a bracket for placing the plastic cover 11; as shown in fig. 3, the cover taking component 2 includes a vacuum chuck 21, a rotating arm 22, a cover taking cylinder 23 and a column component 24, the rotating arm 22 is rotatably mounted at the top end of the column component 24, the cover taking cylinder 23 is vertically mounted at the tail end of the rotating arm 22, and the vacuum chuck 21 is mounted at the piston rod end of the cover taking cylinder 23; as shown in fig. 7, the positioning component 3 includes a first cylinder 31, a cover positioning component 32, a barrel positioning component 33, a top plate 34 and columns 35, four columns 35 are arranged in parallel below the top plate 34 to form a supporting frame of the positioning component 3, the first cylinder 31 is installed on the top plate 34, a piston rod of the first cylinder 31 passes through a through hole in the middle of the top plate 34, as shown in fig. 8, as shown in fig. 9, 10 and 11, the cover positioning component 32 includes a first claw 321, a first mounting plate 322, a first linear bearing 323, an electromagnetic chuck 324, a sliding guide 325 and a static guide 326, two static guide rails 326 are respectively installed at two ends of one side of the first mounting plate 322, the electromagnetic chuck 324 is installed in the middle position of the first mounting plate 322 between the two static guide rails 326, a sliding guide 325 is installed on each static guide rail 326, each movable guide rail 325 is fixedly provided with one first paw 321, a spring is connected between the two movable guide rails 325, four corners of the first mounting plate 322 are respectively provided with one first linear bearing 323, when the electromagnetic chuck 324 is powered on, the movable guide rails 325 move towards the center under the action of electromagnetic force, so that the two first paws 321 are driven to approach towards the center, the plastic barrel cover 11 is positioned, when the electromagnetic chuck 324 is powered off, the movable guide rails 325 move towards two sides under the action of spring force, so that the two first paws 321 are driven to move towards two sides, the positioning and clamping of the plastic barrel cover 11 are released, the barrel positioning component 33 comprises a second mounting frame 331, a second air cylinder 332, a connecting rod 333 and a second paw 334, the second mounting bracket 331 comprises a rear plate 3311, two arms arranged at the front part of the rear plate 1 and a small rotary shaft 3312 arranged at the tail ends of the two arms 3312, the second cylinder 332 is mounted on the rear plate 3311, a piston rod of the second cylinder 332 passes through the rear plate 3311, the end of the second cylinder is connected with the connecting rod 333, one end of the second gripper 334 is provided with an elongated hole 3341, the middle part of the second gripper 334 is provided with a positioning hole 3342, the other end of the second cylinder is provided with a clamping part matched with the plastic barrel 5, the two second grippers 334 are symmetrically hinged at the front ends of the two arms of the second mounting bracket 331 through the positioning hole 3342 and the small rotating shaft 3312, the two second grippers 334 are hinged with the connecting rod 333 through the elongated holes 3341, the extension of the piston rod of the second cylinder 332 can drive the two second grippers 334 to separate towards two sides or approach towards the center so as to loosen and clamp the plastic barrel 5, the cover positioning component 32 is movably mounted on the four upright posts 35 through the first linear bearing 323, the barrel positioning component 33 is fixedly connected with the cover positioning component 32 through the rear plate 3311, the tail end of the piston rod of the first cylinder 31 is connected with the first mounting plate 322 of the cover positioning assembly 32, and the extension and contraction of the piston rod of the first cylinder 31 can drive the cover positioning assembly 32 and the barrel positioning assembly 33 to move up and down; as shown in fig. 12, the gland component 4 includes a guide rod 41, a third cylinder 42, a third mounting plate 43, a cross beam 44, a pressing plate 45 and a third column 46, the two third columns 46 and the cross beam 44 form a door-shaped frame of the gland component 4, the third mounting plate 43 is fixed on the cross beam 44, the third cylinder 42 is mounted on the third mounting plate 43, a piston rod of the third cylinder 42 passes through a through hole in the middle of the third mounting plate 43, the end of the piston rod of the third cylinder 42 is connected with the pressing plate 45, the pressing plate 45 is fixedly connected with the two guide rods 41, the guide rods 41 are mounted on the third mounting plate 43 through linear bearings, and the extension and retraction of the piston rod of the third cylinder 42 can drive the pressing plate 45 to move up and down; the assembly line 6 is used for conveying the plastic barrels 5, the cover taking component 2, the positioning component 3 and the pressing component 4 are sequentially arranged along the conveying direction of the assembly line 6, and the cover storing component 1 is arranged on one side of the assembly line 6 and located in the cover taking range of the cover taking component 2.

As shown in fig. 2, the support of the cap storage component 1 includes a support base 13 and three guide posts 12 arranged on the support base 13 and surrounding the plastic barrel cover 11, and the plastic barrel cover 11 is stacked on the support base 13 between the three guide posts 12.

As shown in fig. 3, four vacuum suction cups 21 are mounted at the end of the piston rod of the cap removing cylinder 23.

As shown in fig. 3, 4, 5 and 6, the cover removing component 2 further includes a thrust bearing 25 and a swing cylinder 26, the top end of the column assembly 24 is provided with a cantilever support shaft 241 and a swing cylinder mounting plate 242, the cantilever support shaft 241 is provided with the thrust bearing 25, the rotating arm 22 is rotatably mounted on the cantilever support shaft 241 of the column assembly 24, one end of the rotating arm 22 is provided with a cylinder mounting hole 221 and a rotating hole 222, the rotating hole 222 is sleeved on the cantilever support shaft 241, the thrust bearing 25 is provided between the rotating arm 22 and the column assembly 24, the cover removing cylinder 23 is mounted in the cylinder mounting hole 221, the swing cylinder 26 is mounted on the swing cylinder mounting plate 242 of the column assembly 24, and an output rotating shaft of the swing cylinder 26 is fixedly connected with one end of the rotating arm 22, the swing of the output shaft of the swing cylinder 26 drives the rotating arm 22 to rotate around the cantilever supporting shaft 241.

The barrel positioning component 33 one end of connecting rod 333 with cylinder 332 is connected, and the other end is equipped with protruding axle, two No. two hand claw 334 the slotted hole 3341 suit is in on protruding epaxially, the clamping part of No. two hand claw 334 is articulated install with plastic drum 5 matches arc and embraces the claw.

The cover placing method of the automatic cover placing machine for the plastic barrel comprises the following specific working steps:

1) the swing cylinder 26 swings to drive the rotating arm 22 to rotate around the cantilever supporting shaft 241, so that the vacuum suction cup 21 directly faces the plastic barrel cover 11 on the supporting platform 13 of the cap storage component 1, the piston rod of the cap taking cylinder 23 extends out to drive the vacuum sucker 21 to move downwards until the vacuum sucker 21 reliably contacts the plastic barrel cover 11, the vacuum sucker 21 sucks the plastic barrel cover 11, the retraction of the piston rod of the cap taking cylinder 23 drives the vacuum sucker 21 and the plastic barrel cover 11 sucked by the vacuum sucker to move upwards, the swing cylinder 26 swings in the opposite direction to drive the rotating arm 22 to rotate around the cantilever supporting shaft 241 in the opposite direction, when the plastic barrel 5 of the production line 6 moves to a position right below the plastic barrel cover 11, the vacuum chuck 21 places the plastic barrel cover 11 on the plastic barrel 5;

2) the piston rod of the first cylinder 31 extends out to drive the cover positioning component 32 and the barrel positioning component 33 to move downwards, the piston rod of the second cylinder 332 of the barrel positioning component 33 retracts to drive the two second claws 334 to draw close to the center so as to position and clamp the plastic barrel 5, the electromagnetic chuck 324 is electrified, the movable guide rail 325 moves towards the center so as to drive the two first claws 321 to draw close to the center, so that the plastic barrel cover 11 is positioned, the electromagnetic chuck 324 is electrified, the movable guide rail 325 moves towards two sides under the action of spring force so as to drive the two first claws 321 to move towards two sides and loosen the positioning and clamping on the plastic barrel cover 11, the piston rod of the second cylinder 332 of the barrel positioning component 33 extends out to drive the two second claws 334 to open towards two sides so as to loosen the clamping on the plastic barrel 5, the piston rod of the first air cylinder 31 retracts to drive the cover positioning assembly 32 and the barrel positioning assembly 33 to move upwards, and after the positioning, the plastic barrel 5 and the plastic barrel cover 11 move to the next station along the assembly line 6;

3) the piston rod of the third air cylinder 42 extends out to drive the pressing plate 45 to move downwards and extrude the pressing plate onto the plastic barrel cover 11, the plastic barrel cover 11 is pressed and buckled on the plastic barrel 5, the piston rod of the third air cylinder 42 retracts to drive the pressing plate 45 to move upwards, the pressing of the plastic barrel 5 is released, and the cap placing process is completed.

The foregoing is only a preferred embodiment of the present invention. The present invention is capable of other embodiments, and various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention. All technical solutions which are formed by adopting equivalent substitutions or equivalent transformations shall fall within the protection scope of the appended claims.