Automatic bag opening device for eyebrow pencil packaging

Abstract

The utility model relates to packing technical field discloses automatic bag opening device for eyebrow pencil packing, including wheel, the top of wheel installs support platform, the top fixedly connected with support column of support platform, the one side of support column installs control platform, the top fixedly connected with material channel of support column, the one side of material channel installs and puts bag box and conveyer belt, the one side away from the bag box of conveyer belt installs the casing, the inside installation of casing has lifting frame no.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and in particular to an automatic bag opening device for eyebrow pencil packaging. Background Technology

[0002] Automatic bag-opening devices for eyebrow pencil packaging are key equipment on eyebrow pencil packaging production lines, commonly found in large-scale operations such as cosmetic product manufacturing companies and cosmetic OEM factories.

[0003] Existing automatic bag opening devices for eyebrow pencil packaging come in various structures. Common ones use suction components to first separate the bag opening from both sides. Then, the bag opening device, in conjunction with a drive unit, further widens the bag opening. Some devices have a base support component, often driven by a cylinder. The suction cups on the movable plate and fixed plate suction the two sides of the bag and move them in opposite directions to open the bag. Subsequently, a support plate is used to flip the bag inside and open the bag opening, avoiding damage and ensuring a full opening for easy filling of the eyebrow pencil. The entire process is automatically controlled by a preset program, improving bag opening efficiency and packaging consistency.

[0004] Existing automatic bag-opening devices for eyebrow pencil packaging have fundamental functional deficiencies. Firstly, most devices rely on suction cups for opening, but the suction force is difficult to control precisely. Excessive suction can tear the packaging bag, while insufficient suction fails to open the bag effectively. This not only leads to subsequent bagging errors and defective products, increasing production costs, but the time and effort spent repairing the suction cups also directly slows down production. Furthermore, the devices have poor adaptability to eyebrow pencil packaging bags of different materials and sizes. When encountering bags that are too soft, too hard, or have significant size discrepancies, problems such as bag openings sticking together and the opening mechanism failing to function accurately often arise, severely impacting packaging efficiency and quality. Secondly, in the core process, insufficient stability in opening the bag can easily obstruct the insertion of the eyebrow pencil. The eyebrow pencil pushing process is also prone to deviation or incomplete placement, resulting in inaccurate product packaging positioning or even damage, further reducing the pass rate. Regarding equipment compatibility, many devices require additional complex power mechanisms, increasing equipment costs and energy consumption, and making seamless integration with existing eyebrow pencil packaging production lines difficult. Therefore, an automatic bag-opening device for eyebrow pencil packaging is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic bag opening device for eyebrow pencil packaging, which aims to improve the problems of unstable bag opening, easy deviation or incomplete delivery of eyebrow pencils during packaging, and the need for additional complex power mechanisms and poor integration with existing equipment in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic bag-opening device for eyebrow pencil packaging includes wheels, a support platform mounted on the top of the wheels, a support column fixedly connected to the top of the support platform, a control console mounted on one side of the support column, a material channel fixedly connected to the top of the support column, a bag-holding box and a conveyor belt mounted on one side of the material channel, a housing mounted on the side of the conveyor belt away from the bag-holding box, a support rod mounted on the top of the conveyor belt, a bag-picking bracket fixedly connected to the bottom of the support rod, a motor mounted on the bottom of the bag-picking bracket, a lifting frame and a support frame installed inside the housing, an opening and closing component provided on the side of the lifting frame near the conveyor belt, a vacuum tube fixedly connected to the bottom of the lifting frame, a rubber suction cup fixedly connected to the bottom of the vacuum tube, a vacuum pump mounted on the top of the support frame, a pneumatic control valve fixedly connected to the input end of the vacuum pump, and a delivery pipe fixedly connected to the pneumatic control valve away from the input end of the vacuum pump.

[0008] As a further description of the above technical solution:

[0009] The opening and closing assembly includes a second lifting frame, which is installed inside the housing. A silicone suction cup is fixedly connected to the bottom of the second lifting frame. Two support plates are installed on the side of the conveyor belt near the vacuum tube. A spring is fixedly connected between the two support plates. A rack block is slidably connected to the bottom of the support plate. Two gears are installed at the bottom of the rack block. Two rack blocks are installed at the bottom of the gears. A motor is installed on one side of the rack block. Two gears are fixedly connected to the output end of the motor.

[0010] As a further description of the above technical solution:

[0011] The bag-retrieving bracket and the motor are mounted on one end of the support rod, and a bag-pressing bracket is mounted on the other end of the support rod.

[0012] As a further description of the above technical solution:

[0013] A gear counter is installed in the middle of the lifting frame, and a pneumatic switch and a pressure plate are installed on the side wall of the gear counter.

[0014] As a further description of the above technical solution:

[0015] One end of the delivery pipe is fixedly connected to the vacuum pump via the pneumatic control valve, and the other end of the delivery pipe is fixedly connected to the middle of the control console.

[0016] As a further description of the above technical solution:

[0017] The first rack block and the second rack block are located on the upper and lower sides of the first gear and the second gear, respectively. The tooth surface of the first rack block meshes with the first gear, and the tooth surface of the second rack block meshes with the second gear.

[0018] As a further description of the above technical solution:

[0019] An alarm rod is fixedly connected to the top of the control console, and a vacuum detection valve is installed in the middle of the vacuum tube.

[0020] As a further description of the above technical solution:

[0021] The surface of the material channel is provided with several anti-slip protrusions, and a rubber suction cup is fixedly connected to the bottom of the vacuum tube.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, a vacuum pump provides negative pressure to the rubber suction cup through a delivery pipe and a vacuum tube. Combined with a pneumatic control valve to regulate the vacuum on and off, a lifting frame drives the rubber suction cup to move up and down precisely. A pressure plate assists in calibrating the position of the eyebrow pencil. A vacuum detection valve monitors the adsorption status in real time. A pneumatic control switch controls the lifting action. A gear counter records the number of eyebrow pencils and packaging bags simultaneously. A bag-pressing bracket fixes the packaging bag. A support frame stabilizes the overall suction mechanism. An alarm rod triggers a warning when three consecutive suction failures occur. This achieves fully automated operation of the eyebrow pencil from suction and stable transfer to reliable bag placement, effectively ensuring the accuracy and continuity of suction and bag placement, and reducing manual intervention.

[0024] 2. In this utility model, the silicone suction cup driven by the lifting frame 2 moves up and down to adsorb the edge of the packaging bag. At the same time, the motor 2 drives the rack block 1 to drive the gear 1 to rotate. The gear 1 meshes with the transmission gear 2, so that the rack block 2 drives the two side support plates to move away from each other. The synchronicity of the gear transmission and the mechanical expansion force of the support plates form a synergistic effect, thereby realizing the automatic opening of the packaging bag, providing a stable opening state for the eyebrow pencil to be put into the bag, and effectively ensuring the smooth progress of the subsequent bagging process. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the automatic bag-opening device for eyebrow pencil packaging proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the conveyor belt structure of the automatic bag-opening device for eyebrow pencil packaging proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the bag-pressing bracket structure of the automatic bag-opening device for eyebrow pencil packaging proposed in this utility model;

[0028] Figure 4 for Figure 3Enlarged view of A in the middle;

[0029] Figure 5 This is a schematic diagram of the vacuum detection valve structure of the automatic bag opening device for eyebrow pencil packaging proposed in this utility model.

[0030] Figure 6 This is a schematic diagram of the support plate structure of the automatic bag opening device for eyebrow pencil packaging proposed in this utility model.

[0031] Legend:

[0032] 1. Wheels; 2. Support platform; 3. Support column; 4. Material channel; 5. Bag box; 6. Conveyor belt; 7. Support rod; 8. Opening and closing assembly; 81. Lifting frame II; 82. Silicone suction cup; 83. Support plate; 84. Gear I; 85. Gear II; 86. Rack block I; 87. Rack block II; 88. Spring; 89. Motor II; 9. Control console; 10. Housing; 11. Motor I; 12. Bag picking bracket; 13. Conveying pipe; 14. Bag pressing bracket; 15. Gear counter; 16. Lifting frame I; 17. Pneumatic control switch; 18. Pressing plate; 19. Rubber suction cup; 20. Vacuum pump; 21. Support frame; 22. Pneumatic control valve; 23. Vacuum detection valve; 24. Vacuum tube; 25. Alarm rod. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 3 and Figure 4 , Figure 5This utility model provides an embodiment of an automatic bag-opening device for eyebrow pencil packaging, including a wheel 1, a support platform 2 mounted on the top of the wheel 1, a support column 3 fixedly connected to the top of the support platform 2, a control console 9 mounted on one side of the support column 3, a material channel 4 fixedly connected to the top of the support column 3, a bag box 5 and a conveyor belt 6 mounted on one side of the material channel 4, a housing 10 mounted on the side of the conveyor belt 6 away from the bag box 5, a support rod 7 mounted on the top of the conveyor belt 6, a bag-retrieving bracket 12 fixedly connected to the bottom of the support rod 7, a motor 11 mounted on the bottom of the bag-retrieving bracket 12, a lifting frame 16 and a support frame 21 mounted inside the housing 10, an opening and closing component 8 provided on the side of the lifting frame 16 near the conveyor belt 6, a vacuum tube 24 fixedly connected to the bottom of the lifting frame 16, and a rubber suction cup 19 fixedly connected to the bottom of the vacuum tube 24. A vacuum pump 20 is installed on the top of the support frame 21. A pneumatic control valve 22 is fixedly connected to the input end of the vacuum pump 20. A conveying pipe 13 is fixedly connected to the pneumatic control valve 22 away from the input end of the vacuum pump 20. A bag-taking bracket 12 and a motor 11 are installed at one end of the support rod 7. A bag-pressing bracket 14 is installed at the other end of the support rod 7. A gear counter 15 is installed in the middle of the lifting frame 16. A pneumatic control switch 17 and a pressing plate 18 are installed on the side wall of the gear counter 15. One end of the conveying pipe 13 is fixedly connected to the vacuum pump 20 through the pneumatic control valve 22. The other end of the conveying pipe 13 is fixedly connected to the middle of the control console 9. An alarm rod 25 is fixedly connected to the top of the control console 9. A vacuum detection valve 23 is installed in the middle of the vacuum tube 24. Several anti-slip protrusions are provided on the surface of the material channel 4. A rubber suction cup 19 is fixedly connected to the bottom of the vacuum tube 24.

[0035] Specifically, the eyebrow pencil is conveyed through the feed channel 4, corresponding to a suction mechanism consisting of a vacuum pump 20, a pneumatic control valve 22, a vacuum tube 24, and a rubber suction cup 19. The vacuum pump 20 is fixed to the housing 10 by a support frame 21. The output end of the vacuum pump 20 is connected to the conveying pipe 13 via the pneumatic control valve 22, and then connected to the vacuum tube 24 at the bottom of the lifting frame 16. The vacuum detection valve 23 in the middle of the vacuum tube 24 presets an effective vacuum threshold. At the same time, the gear counter 15 counts the passing packaging bags and the corresponding eyebrow pencils in the feed channel 4. Then, the lifting frame 16 moves the rubber suction cup 19 down. After contacting the eyebrow pencil, the pneumatic control valve 22 opens, and the vacuum pump 20 draws a vacuum through the vacuum tube 24. The vacuum detection valve 23 monitors the vacuum value in real time. Once the effective threshold is reached... When the vacuum value is not met, the pneumatic switch 17 triggers the lifting frame 16 to lift up, and the rubber suction cup 19 carries the eyebrow pencil to the corresponding packaging bag inlet. If the vacuum value is not met, the system immediately starts the first supplementary suction, controlling the lifting frame 16 to move down again to suck up the pencil. If the supplementary suction fails after three consecutive attempts, the alarm rod 25 is activated, and the material channel 4 stops feeding. Operation resumes after the fault is cleared. This realizes the automated operation of the eyebrow pencil from conveying, precise suction, and transfer to the bag position, and has the functions of abnormal detection and supplementary suction. When the suction fails continuously, an alarm is triggered in time and the material supply of the corresponding material channel 4 is suspended. The combined effect of this method effectively ensures the accuracy, stability and continuity of the eyebrow pencil suction and bagging process, reduces the need for manual intervention, and improves the overall operating efficiency and reliability of the device.

[0036] Reference Figure 1 and Figure 2 , Figure 6 The opening and closing assembly 8 includes a second lifting frame 81, which is installed inside the housing 10. A silicone suction cup 82 is fixedly connected to the bottom of the second lifting frame 81. Two support plates 83 are installed on the side of the conveyor belt 6 near the vacuum tube. A spring 88 is fixedly connected between the two support plates 83. A rack block 86 is slidably connected to the bottom of the support plate 83. Two gears 84 are installed at the bottom of the rack block 86. A second rack block 87 is installed at the bottom of the gears 84. A second motor 89 is installed on one side of the rack block 87. Two gears 85 are fixedly connected to the output end of the second motor 89. The rack block 86 and the rack block 87 are located on the upper and lower sides of the gears 84 and 85, respectively. The tooth surface of the rack block 86 meshes with the gear 84, and the tooth surface of the rack block 87 meshes with the gear 85.

[0037] Specifically, the lifting frame 81 begins to move downwards, causing the silicone suction cup 82 at the bottom to simultaneously approach the packaging bag. Once the silicone suction cup 82 adheres to the surface of the packaging bag and forms a stable adhesion, the lifting frame 81 rises upwards, using the silicone suction cup 82 to lift one edge of the packaging bag. At the same time, the rack block 86 connected to the bottom of the support plate 83 slides horizontally under the drive of the motor 89. The sliding of the rack block 86 causes the gear 84 meshing with it to rotate. The gear 84, in turn, drives the gear 85 on one side to rotate synchronously through meshing transmission. The rotation of the gear 85 then drives the gear 85 to rotate synchronously. The toothed block 87 slides in opposite directions, and the sliding of the toothed block 87 further drives the support plates 83 on both sides to move away from each other. Under the pulling action of the support plates 83, the edge of the packaging bag is pulled up and gradually opens, realizing the automated bag opening process from contact and adsorption to edge pulling and opening. The bag opening is expanded by the coordinated cooperation of mechanical transmission and vacuum adsorption. This comprehensive effect makes the size of the packaging bag opening uniform and stable, avoiding the errors and inefficiencies of manual bag opening, creating favorable conditions for the subsequent precise insertion of the eyebrow pencil into the bag, and improving the automation and continuity of the overall packaging process.

[0038] Working principle: First, after the device is started, the feed channel 4 conveys eyebrow pencils, corresponding to a suction mechanism consisting of a vacuum pump 20, a pneumatic control valve 22, a vacuum tube 24, and a rubber suction cup 19. The vacuum pump 20 is fixed to the housing 10 via a support frame 21. The output end of the vacuum pump 20 is connected to the conveying pipe 13 via the pneumatic control valve 22, and then connected to the vacuum tube 24 at the bottom of the lifting frame 16. The vacuum detection valve 23 in the middle of the vacuum tube 24 is preset with an effective vacuum threshold. At the same time, the gear counter 15 counts the passing packaging bags and the corresponding eyebrow pencils in the feed channel 4, and then the device is lifted... The lifting frame 16 moves the rubber suction cup 19 down and contacts the eyebrow pencil. The pneumatic control valve 22 opens, and the vacuum pump 20 draws a vacuum through the vacuum tube 24. The vacuum detection valve 23 monitors the vacuum value in real time. When the effective threshold is reached, the pneumatic control switch 17 triggers the lifting frame 16 to lift up. The rubber suction cup 19 carries the eyebrow pencil to the corresponding packaging bag inlet. If the vacuum value does not meet the standard, the system immediately starts the first suction, controlling the lifting frame 16 to move down again to suck up the pencil. If the suction fails after three consecutive suction attempts, the alarm rod 25 is activated, and the material channel 4 stops feeding. Operation resumes after the fault is cleared.

[0039] Secondly, when the conveyor belt 6 transports the eyebrow pencil packaging bag to the designated working area, the lifting frame 2 81 begins to move downwards, causing the silicone suction cup 82 at the bottom to simultaneously approach the packaging bag. After the silicone suction cup 82 adheres to the surface of the packaging bag and forms a stable adsorption, the lifting frame 2 81 is lifted upwards, pulling up one edge of the packaging bag through the silicone suction cup 82. At the same time, the rack block 1 86 connected to the bottom of the support plate 83 is driven by the motor 2 89 to slide horizontally. The sliding of the rack block 1 86 drives the gear 1 84 meshing with it to rotate. The gear 1 84 then drives the gear 2 85 on one side to rotate synchronously through meshing transmission. The rotation of the gear 2 85 drives the rack block 2 87 that it meshes with to slide in the opposite direction. The sliding of the rack block 2 87 further drives the support plates 83 on both sides to move away from each other. Under the pulling action of the support plates 83, the edge of the packaging bag that has been pulled up gradually opens.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic bag-opening device for eyebrow pencil packaging, comprising wheels (1), characterized in that: A support platform (2) is installed on the top of the wheel (1), and a support column (3) is fixedly connected to the top of the support platform (2). A control console (9) is installed on one side of the support column (3), and a material channel (4) is fixedly connected to the top of the support column (3). A bag box (5) and a conveyor belt (6) are installed on one side of the material channel (4). A housing (10) is installed on the side of the conveyor belt (6) away from the bag box (5). A support rod (7) is installed on the top of the conveyor belt (6), and a bag-retrieving bracket (12) is fixedly connected to the bottom of the support rod (7). A motor (11) is installed at the bottom of the housing (10). A lifting frame (16) and a support frame (21) are installed inside the housing (10). An opening and closing assembly (8) is provided on the side of the lifting frame (16) near the conveyor belt (6). A vacuum tube (24) is fixedly connected to the bottom of the lifting frame (16). A vacuum pump (20) is installed on the top of the support frame (21). A pneumatic control valve (22) is fixedly connected to the input end of the vacuum pump (20). A delivery pipe (13) is fixedly connected to the pneumatic control valve (22) away from the input end of the vacuum pump (20).

2. The automatic bag opening device for eyebrow pencil packaging according to claim 1, characterized in that: The opening and closing assembly (8) includes a second lifting frame (81), which is installed inside the housing (10). A silicone suction cup (82) is fixedly connected to the bottom of the second lifting frame (81). Two support plates (83) are installed on the side of the conveyor belt (6) near the vacuum tube (24). A spring (88) is fixedly connected between the two support plates (83). A rack block (86) is slidably connected to the bottom of the support plate (83). Two gears (84) are installed at the bottom of the rack block (86). A rack block (87) is installed at the bottom of the gears (84). A motor (89) is installed on one side of the rack block (87). Two gears (85) are fixedly connected to the output end of the motor (89).

3. The automatic bag-opening device for eyebrow pencil packaging according to claim 1, characterized in that: The bag-retrieving bracket (12) and the motor (11) are installed at one end of the support rod (7), and the other end of the support rod (7) is equipped with a bag-pressing bracket (14).

4. The automatic bag-opening device for eyebrow pencil packaging according to claim 1, characterized in that: A gear counter (15) is installed in the middle of the lifting frame (16), and a pneumatic switch (17) and a pressure plate (18) are installed on the side wall of the gear counter (15).

5. The automatic bag-opening device for eyebrow pencil packaging according to claim 1, characterized in that: One end of the delivery pipe (13) is fixedly connected to the vacuum pump (20) through the pneumatic control valve (22), and the other end of the delivery pipe (13) is fixedly connected to the middle of the control console (9).

6. The automatic bag opening device for eyebrow pencil packaging according to claim 2, characterized in that: The first rack block (86) and the second rack block (87) are located on the upper and lower sides of the first gear (84) and the second gear (85), respectively. The tooth surface of the first rack block (86) meshes with the first gear (84), and the tooth surface of the second rack block (87) meshes with the second gear (85).

7. The automatic bag-opening device for eyebrow pencil packaging according to claim 1, characterized in that: An alarm rod (25) is fixedly connected to the top of the control console (9), and a vacuum detection valve (23) is installed in the middle of the vacuum tube (24).

8. The automatic bag opening device for eyebrow pencil packaging according to claim 1, characterized in that: The surface of the material channel (4) is provided with several anti-slip protrusions, and the bottom of the vacuum tube (24) is fixedly connected with a rubber suction cup (19).

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