Automatic packaging mechanism for plastic products

Abstract

The automatic packaging mechanism comprises a front-section conveying belt and a rear-section conveying belt which are arranged front and back and are layered up and down, a rotating frame is arranged at the fall position of the front-section conveying belt and the rear-section conveying belt, the two opposite ends of the rotating frame are open, and the rotating frame is connected with a rotating driving unit; a packaging bag supply mechanism is arranged on the left side of the rotating frame, a packaging bag pulling mechanism is arranged on the right side of the rotating frame, and the packaging bag pulling mechanism can penetrate through the rotating frame to obtain packaging bags from the packaging bag supply mechanism and pull the packaging bags into the rotating frame. A packaging bag opening suction cup and a packaging bag tail suction cup are arranged on the front side wall in the rotating frame, a telescopic mechanism is arranged on the rear side wall of the rotating frame, the telescopic mechanism is provided with a packaging bag opening suction cup, and the packaging bag opening suction cup and the packaging bag opening suction cup are oppositely arranged front and back. According to the display frame packaging device, automatic packaging of display frames in the conveying process can be achieved, existing manual packaging is replaced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of plastic product production, and in particular to blanking and packaging of plastic products. Background Art

[0002] The frame of the display is formed in the injection molding equipment, and the formed frame is in an upright state. After the mold is opened, the suction cup at the end of the robot arm absorbs the frame. The end of the robot arm is provided with a frame structure, which is hinged to the robot arm, and a cylinder is connected between the robot arm and the frame structure. The suction cups are distributed along the edge of the frame structure. After the mold is opened, the suction cups on the frame structure absorb the frame of the display, and at this time, the frame structure is also in an upright state.

[0003] There is a conveyor belt next to the injection molding equipment, and the end of the conveyor belt is the manual position. After the suction cup at the end of the robot sucks the frame of the display, it moves to the top of the conveyor belt and then descends. When it approaches the conveyor belt, the cylinder drives the frame structure to rotate 90 degrees, and the frame structure and the sucked frame are transformed into a horizontal state. After that, the suction cup releases the frame, and the frame falls on the conveyor belt. The frame moves to the manual position, and the worker packs the frame with a packaging bag. Summary of the invention

[0004] The technical problem solved by the present invention is: how to realize the automatic packaging of the display frame to replace the existing manual packaging.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: an automatic packaging mechanism for plastic products comprises a conveyor belt, the conveyor belt comprises a front conveyor belt and a rear conveyor belt arranged front and rear, the front conveyor belt and the rear conveyor belt are arranged in layers up and down; a rotating frame is provided between the tail end of the front conveyor belt and the front end of the rear conveyor belt, the two opposite ends of the rotating frame are open, and the rotating frame is connected to a rotating drive unit; a packaging bag supply mechanism is provided on the left side of the rotating frame, and a packaging bag pulling mechanism is provided on the right side of the rotating frame, the packaging bag pulling mechanism can pass through the rotating frame to obtain the packaging bag from the packaging bag supply mechanism and pull the packaging bag into the rotating frame; a packaging bag opening suction cup and a packaging bag tail suction cup are provided on the front side wall inside the rotating frame, and a telescopic mechanism is provided on the rear side wall of the rotating frame, the telescopic mechanism is provided with a packaging bag opening suction cup, and the packaging bag opening suction cup is located in the rotating frame and is arranged opposite to the packaging bag opening suction cup in front and back.

[0006] According to the above technical solution, when the openings at both ends of the rotating frame are in the left and right positions, the packaging bag pulling mechanism passes through the rotating frame horizontally, obtains the packaging bag from the packaging bag supply mechanism and pulls the packaging bag into the rotating frame. The packaging bag opening suction cup absorbs one side of the packaging bag opening end, and the packaging bag tail suction cup absorbs the packaging bag tail. After that, the packaging bag supply mechanism detaches from the packaging bag and retreats to reset. The telescopic mechanism drives the packaging bag to open the suction cup and move forward. After the packaging bag opens the suction cup and absorbs the other side of the packaging bag opening end, the telescopic mechanism drives the packaging bag to open the suction cup and retreat to open the packaging bag opening. After that, driven by the rotation drive unit, the rotating frame rotates 90 degrees clockwise, the openings at both ends of the rotating frame are in the upper and lower positions, and the opening of the packaging bag in the rotating frame is in the upper position. The manipulator places the formed product on the front conveyor belt, and the front conveyor belt conveys the product backward to the tail end, and the product falls into the packaging bag. The telescopic mechanism drives the packaging bag to open the suction cup and move forward, and the packaging bag opens the suction cup and closes the packaging bag opening. After that, the telescopic mechanism drives the bag to open the suction cup and retreat, and the bag opening suction cup, bag opening suction cup and bag tail suction cup release the bag, and the bag falls onto the rear conveyor belt, which transports it to the next station. The rotating frame rotates 90 degrees counterclockwise to reset, and the bag pulling mechanism pulls the next bag into the rotating frame. This process repeats.

[0007] The rotary drive unit comprises a connecting flange fixed on the rotating frame and a motor connected to the connecting flange. The motor is installed on a motor frame, and the motor frame is fixed on a frame of the front conveyor belt.

[0008] The packaging bag supply mechanism includes a packaging bag winding shaft, a packaging bag guide located beside the packaging bag winding shaft, and a packaging bag cutter located beside the packaging bag guide. The packaging bag winding shaft, the packaging bag guide and the packaging bag cutter are all installed on the left bracket. As an option, the packaging bag cutter includes a vertical cylinder and a cutting knife, and the cutting knife is installed on the piston of the vertical cylinder. The packaging bag pulling mechanism pulls the packaging bag into the rotating frame. After a packaging bag enters the rotating frame, the vertical cylinder drives the cutting knife to descend vertically to cut off the connection between one packaging bag and the next packaging bag. Afterwards, the packaging bag opening suction cup absorbs one side of the packaging bag opening end, and the packaging bag tail suction cup absorbs the packaging bag tail.

[0009] The packaging bag pulling mechanism includes a pair of packaging bag pulling cylinders distributed up and down. The piston rod of the packaging bag pulling cylinder is hollow, the front end of the piston rod is provided with a vacuum suction hole, the rear end of the piston rod is provided with a vacuum tube connector connected to the vacuum pump, and the packaging bag pulling cylinder is installed on the right bracket. The piston rod of the packaging bag pulling cylinder passes through the rotating frame horizontally, the vacuum suction hole of the piston rod is close to the packaging bag guide, the packaging bag part protruding from the packaging bag guide is the tail end of the packaging bag, and is also the cut-off point with the previous packaging bag. The vacuum suction hole of the piston rod is located beside the tail end of the packaging bag, and the tail end of the packaging bag is adsorbed by vacuum suction. Afterwards, the piston rod pulls the packaging bag into the rotating frame.

[0010] The telescopic mechanism includes a horizontal cylinder and a guide column. The horizontal cylinder is located outside the rotating frame. The piston rod of the horizontal cylinder is fixedly connected to the rear side wall of the rotating frame. The cylinder body of the horizontal cylinder is fixedly connected to the guide column. The guide column passes through the rear side wall of the rotating frame and extends into the rotating frame. One end of the guide column located in the rotating frame is connected to a suction cup plate, and the packaging bag opening suction cup is installed on the suction cup plate. When the piston rod of the horizontal cylinder is extended, the packaging bag opening suction cup is away from the packaging bag opening suction cup. When the piston rod of the horizontal cylinder is retracted, the packaging bag opening suction cup is close to the packaging bag opening suction cup.

[0011] The guide column is fixedly connected to the cylinder body of the horizontal cylinder through the cylinder mounting plate. A linear bearing is arranged on the rear side wall of the rotating frame, and the guide column is matched in the linear bearing.

[0012] The present invention can realize automatic packaging of display frames during transportation, replacing the existing manual packaging. In this way, it can avoid the workers' efficiency being reduced due to long working hours, and it is difficult for them to keep up with the rhythm of conveying products on the conveyor belt, and they are too late to package the conveyed products; and it can increase the conveying speed of the conveyor belt and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings:

[0014] Figure 1 is a schematic diagram of a rotating frame 20;

[0015] Figure 2 is a schematic diagram of the rotating frame 20 from another viewing angle;

[0016] Figure 3 is a schematic diagram of an automatic packaging mechanism for plastic products;

[0017] Figure 4 A top view of an automatic packaging mechanism for plastic products;

[0018] Figure 5 for Figure 3 A schematic diagram of an automatic packaging mechanism for plastic products viewed from the left;

[0019] Figure 6 A schematic diagram of the piston rod 42 of the bag pulling cylinder pulling the bag 60 into the rotating frame 20;

[0020] Figure 7 for Figure 6 A schematic diagram showing that after the middle packaging bag is cut by the packaging bag cutter 33, the rotating frame 20 is rotated 90 degrees clockwise;

[0021] Figure 8 for Figure 7 The schematic diagram is shown after the middle rotating frame 20 is rotated 90 degrees clockwise.

[0022] Explanation of symbols in the figure:

[0023] 11. Front conveyor belt; 12. Rear conveyor belt; 13. Frame of the front conveyor belt;

[0024] 20. Rotating frame; 21. Suction cup for bag opening; 22. Suction cup for bag tail; 23. Suction cup for bag opening; 24. Horizontal cylinder; 241. Piston rod of horizontal cylinder; 25. Guide column; 26. Suction cup plate; 27. Cylinder mounting plate; 28. Linear bearing;

[0025] 30. Packaging bag supply mechanism; 31. Packaging bag winding shaft; 32. Packaging bag guide; 33. Packaging bag cutter; 331. Vertical cylinder; 332. Cutting knife; 34. Left side bracket;

[0026] 40. Packaging bag pulling mechanism; 41. Packaging bag pulling cylinder; 42. Piston rod of the packaging bag pulling cylinder; 43. Vacuum suction hole; 44. Vacuum tube connector; 45. Right bracket;

[0027] 50. Rotation drive unit; 51. Connection flange; 52. Motor; 53. Motor frame;

[0028] 60. Packaging bag. DETAILED DESCRIPTION

[0029] Combination Figure 1 , Figures 3 to 5The automatic packaging mechanism of plastic products includes a conveyor belt, which includes a front conveyor belt 11 and a rear conveyor belt 12 arranged in front and back, and the front conveyor belt and the rear conveyor belt are arranged in layers up and down; a rotating frame 20 is provided between the tail end of the front conveyor belt and the front end of the rear conveyor belt, and the two opposite ends of the rotating frame are open, and the rotating frame is connected to a rotating drive unit 50; a packaging bag supply mechanism 30 is provided on the left side of the rotating frame, and a packaging bag pulling mechanism 40 is provided on the right side of the rotating frame, and the packaging bag pulling mechanism can pass through the rotating frame to obtain the packaging bag from the packaging bag supply mechanism and pull the packaging bag into the rotating frame; a packaging bag opening suction cup 21 and a packaging bag tail suction cup 22 are provided on the front side wall inside the rotating frame, and a telescopic mechanism is provided on the rear side wall of the rotating frame, and the telescopic mechanism is provided with a packaging bag opening suction cup 23, and the packaging bag opening suction cup is located in the rotating frame and is arranged opposite to the packaging bag opening suction cup in front and back.

[0030] Combination Figure 2 , Figure 3 The rotary drive unit 50 includes a connecting flange 51 fixed on the rotating frame 20, and a motor 52 connected to the connecting flange. The motor is installed on a motor frame 53, and the motor frame is fixed on the frame 13 of the front conveyor belt.

[0031] Combination Figure 4 , Figure 5 The packaging bag supply mechanism 30 includes a packaging bag winding shaft 31, a packaging bag guide 32 located beside the packaging bag winding shaft, and a packaging bag cutter 33 located beside the packaging bag guide. The packaging bag winding shaft, the packaging bag guide and the packaging bag cutter are all installed on the left bracket 34. The packaging bag cutter 33 includes a vertical cylinder 331 and a cutting knife 332, and the cutting knife is installed on the piston of the vertical cylinder. The packaging bag pulling mechanism 40 pulls the packaging bag 60 into the rotating frame 20. After a packaging bag enters the rotating frame, the vertical cylinder 331 drives the cutting knife 332 to descend vertically to cut off the connection between one packaging bag and the next packaging bag. Afterwards, the packaging bag opening suction cup 21 absorbs one side of the packaging bag opening end, and the packaging bag tail suction cup 22 absorbs the packaging bag tail.

[0032] like Figure 5 The packaging bag pulling mechanism 40 includes a pair of packaging bag pulling cylinders 41 distributed up and down, the piston rod 42 of the packaging bag pulling cylinder is hollow, the front end of the piston rod is provided with a vacuum suction hole 43, the rear end of the piston rod is provided with a vacuum tube connector 44 connected to the vacuum pump, and the packaging bag pulling cylinder is installed on the right bracket 45.

[0033] like Figure 1 , Figure 3The telescopic mechanism includes a horizontal cylinder 24 and a guide column 25. The horizontal cylinder is located outside the rotating frame. The piston rod 241 of the horizontal cylinder is fixedly connected to the rear side wall of the rotating frame 20. The cylinder body of the horizontal cylinder is fixedly connected to the guide column. The guide column passes through the rear side wall of the rotating frame and extends into the rotating frame. One end of the guide column located in the rotating frame is connected to a suction cup plate 26, and the packaging bag is opened The suction cup 23 is installed on the suction cup plate.

[0034] The guide column 25 is fixedly connected to the cylinder body of the horizontal cylinder 24 through the cylinder mounting plate 27 .

[0035] A linear bearing 28 is provided on the rear side wall of the rotating frame 20 , and the guide column 25 is fitted in the linear bearing.

[0036] refer to Figures 6 to 8 In actual production, when the openings at both ends of the rotating frame 20 are in the left and right positions, the piston rod 42 of the bag pulling cylinder passes through the rotating frame horizontally, and the vacuum suction hole 43 of the piston rod is close to the bag guide 32. The bag part protruding from the bag guide is the tail end of the bag, which is also the cut-off point with the previous bag. The vacuum suction hole 43 of the piston rod is located beside the tail end of the bag, and the tail end of the bag is sucked by vacuum suction. Afterwards, the piston rod 42 of the bag pulling cylinder pulls the bag into the rotating frame 20. The vertical cylinder 331 drives the cutting knife 332 to descend vertically to cut off the connection between one bag and the next bag. Afterwards, the bag opening suction cup 21 sucks one side of the bag opening end, and the bag tail suction cup 22 sucks the bag tail. Afterwards, the piston rod 42 of the bag pulling cylinder is separated from the bag and retreats to reset.

[0037] The piston rod 241 of the horizontal cylinder contracts, and the bag opening suction cup 23 approaches the bag opening suction cup 21 to absorb one side of the bag opening end. The piston rod 241 of the horizontal cylinder extends, and the bag opening suction cup 23 moves away from the bag opening suction cup 21 to open the bag opening.

[0038] Afterwards, driven by the motor 52, the rotating frame 20 rotates 90 degrees clockwise, the openings at both ends of the rotating frame are in the upper and lower positions, and the opening of the packaging bag 60 in the rotating frame is in the upper position. The manipulator places the formed product on the front conveyor belt 11, and the front conveyor belt conveys the product backward to the rear end, and the product falls into the packaging bag. The horizontal cylinder 24 drives the packaging bag to open the suction cup 23 and move forward, and the packaging bag opens the suction cup to close the packaging bag opening. Afterwards, the horizontal cylinder 24 drives the packaging bag to open the suction cup 23 and retreat, and the packaging bag opens the suction cup 23, the packaging bag opening suction cup 21 and the packaging bag tail suction cup 22 release the packaging bag 60, and the packaging bag falls onto the rear conveyor belt 12, and is transported to the next station by the rear conveyor belt. The rotating frame 20 rotates 90 degrees counterclockwise to reset, and the packaging bag pulls the piston rod 42 of the cylinder to pull the next packaging bag into the rotating frame. This is repeated.

[0039] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. An automatic packaging mechanism for plastic products, including a conveyor belt, characterized in that: The conveyor belt comprises a front conveyor belt (11) and a rear conveyor belt (12) arranged front and back, and the front conveyor belt and the rear conveyor belt are arranged in layers up and down; a rotating frame (20) is arranged between the tail end of the front conveyor belt and the front end of the rear conveyor belt, and the two opposite ends of the rotating frame are open, and the rotating frame is connected to a rotating drive unit (50); a packaging bag supply mechanism (30) is arranged on the left side of the rotating frame, and a packaging bag pulling mechanism (40) is arranged on the right side of the rotating frame, and the packaging bag pulling mechanism can pass through the rotating frame to obtain the packaging bag from the packaging bag supply mechanism and pull the packaging bag into the rotating frame; a packaging bag opening suction cup (21) and a packaging bag tail suction cup (22) are arranged on the front side wall inside the rotating frame, and a telescopic mechanism is arranged on the rear side wall of the rotating frame, and the telescopic mechanism is provided with a packaging bag opening suction cup (23), and the packaging bag opening suction cup is located in the rotating frame and arranged opposite to the packaging bag opening suction cup.

2. The automatic packaging mechanism for plastic products as claimed in claim 1, characterized in that: The rotary drive unit (50) comprises a connecting flange (51) fixed on the rotating frame (20), and a motor (52) connected to the connecting flange, wherein the motor is mounted on a motor frame (53), and the motor frame is fixed on a frame (13) of the front conveyor belt.

3. The automatic packaging mechanism for plastic products as claimed in claim 1, characterized in that: The packaging bag supply mechanism (30) comprises a packaging bag winding shaft (31), a packaging bag guide (32) located beside the packaging bag winding shaft, and a packaging bag cutter (33) located beside the packaging bag guide. The packaging bag winding shaft, the packaging bag guide and the packaging bag cutter are all mounted on a left bracket (34).

4. The automatic packaging mechanism for plastic products as claimed in claim 1, characterized in that: The packaging bag pulling mechanism (40) comprises a pair of packaging bag pulling cylinders (41) distributed up and down, the piston rod (42) of the packaging bag pulling cylinder is hollow, the front end of the piston rod is provided with a vacuum suction hole (43), the rear end of the piston rod is provided with a vacuum tube connector (44) connected to a vacuum pump, and the packaging bag pulling cylinder is installed on the right bracket (45).

5. The automatic packaging mechanism for plastic products as claimed in claim 1, characterized in that: The telescopic mechanism comprises a horizontal cylinder (24) and a guide column (25), wherein the horizontal cylinder is located outside the rotating frame, the piston rod (241) of the horizontal cylinder is fixedly connected to the rear side wall of the rotating frame (20), the cylinder body of the horizontal cylinder is fixedly connected to the guide column, the guide column passes through the rear side wall of the rotating frame and extends into the rotating frame, one end of the guide column located in the rotating frame is connected to a suction cup plate (26), and the packaging bag is opened and the suction cup (23) is mounted on the suction cup plate.

6. The automatic packaging mechanism for plastic products as claimed in claim 5, characterized in that: The guide column (25) is fixedly connected to the cylinder body of the horizontal cylinder (24) through a cylinder mounting plate (27).

7. The automatic packaging mechanism for plastic products as claimed in claim 5, characterized in that: A linear bearing (28) is arranged on the rear side wall of the rotating frame (20), and the guide column (25) is matched in the linear bearing.

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