Automatic sorting device and control method for thin paper tubes

Abstract

The present invention relates to an automatic sorting device for paper tubes and a control method thereof. The device comprises a waste separation conveyor, a material distribution conveyor, a positive sequence conveyor, a paper tube slide chute, a material box fixing mechanism, a scissor lift mechanism, and a horizontal transmission mechanism; the present invention innovatively invents a sorting and collecting device for the part of the existing paper tube slitting equipment that requires manual collection, and the automated equipment replaces the manual collection, changes the production method, completes the improvement of factory automation, improves the overall production efficiency of the factory, and saves the cost of factory production.

Description

Technical Field

[0001] The invention relates to the technical field of paper tube manufacturing, and in particular to an automatic sorting device for thin paper tubes and a control method. Background Art

[0002] As society becomes more and more aware of plastic waste pollution, paper products are gradually replacing plastic products in application scenarios due to their easy recycling and low pollution characteristics. For example, plastic straws will cause serious pollution to the environment during processing and recycling. Starting from January 1, 2021, the beverage industry will replace plastic straws with paper straws. Paper straws are mostly thin paper tubes, which are cut into paper tubes of fixed lengths after gluing and winding with multiple layers of paper tape. After the paper tubes are neatly packed, they are sent to the next process for processing. Due to the technical limitations of the production equipment, waste materials of different lengths from the set length will be generated during the continuous cutting process, and the entire discharging process is fast and messy. In the prior art, waste materials are separated manually and then paper tubes are manually sorted and packed. However, the paper tube production machine works continuously and continuously produces newly cut paper tubes, but manual labor cannot keep working for a long time, so the efficiency of manual labor directly affects the efficiency of production. In addition, each machine needs to hire workers to perform sorting operations, which increases the cost of hiring workers and thus increases production costs. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide an automatic unloading and sorting device for thin paper tubes and a control method thereof, which can realize the automatic collection, sorting and filling of cooling paper tubes to improve production efficiency, neatly arrange paper tubes to facilitate entering the next process, and save production costs.

[0004] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0005] A thin paper tube automatic sorting device comprises a waste separation conveyor, a material distribution conveyor, a positive sequence conveyor, a thin paper tube chute, a material box fixing mechanism, a scissor lift mechanism, and a horizontal transmission mechanism; the waste separation conveyor is a first-level conveyor, on which a thin paper tube chute is fixed, the thin paper tube chute cooperates with a discharge rod of a discharge device, and is at a fixed distance from a second-level conveyor; the material distribution conveyor is a second-level conveyor, the rear half of the thin paper tube chute is fixed above the second-level conveyor, and the first and second-level conveyors are placed on the same straight line; the positive sequence conveyor is a third-level conveyor, which is perpendicular to and obliquely below the second-level conveyor, and the end of the third-level conveyor is arranged corresponding to the scissor lift mechanism; the scissor lift mechanism is fixed on the horizontal transmission mechanism, and the entire horizontal mechanism is fixed to the frame.

[0006] In the above-mentioned automatic sorting equipment for thin paper tubes, the waste separation conveyor is set at a speed of 20-40m / min to ensure that the waste will not fly to the second-stage conveyor and the received thin paper tubes will be initially separated; the speed of the dividing conveyor is 30-50m / min to separate the adjacent thin paper tubes to ensure that they will not block the card path when falling to the third-stage conveyor, and the distance between the waste separation conveyor and the dividing conveyor is 30-60mm to ensure that the waste is separated out, and the conveyor belts of the first and second conveyors use wear-resistant belts; the positive sequence conveyor is placed vertically to the second-stage conveyor, and the conveyor belt of the positive sequence conveyor uses a toothed belt.

[0007] In the above-mentioned automatic sorting device for thin wallpaper tubes, the tooth pitch is 10-15 mm and the tooth depth is 2-3 mm.

[0008] In the above-mentioned automatic sorting equipment for thin paper tubes, the tube chute wall material is iron, the upper plate material is ferrite magnet, and magnetic suction is used to facilitate cleaning of the chute; there is a boss at the end of the thin paper tube chute to change the situation where the thin paper tube will tilt and fall in advance, so that the smoke falls horizontally to the third-level conveyor after leaving the chute.

[0009] In the above-mentioned automatic sorting equipment for thin paper tubes, the unloading box is divided into a box body, side panels and a movable bottom plate. A rectangular frame is dug out at the bottom of the box body for the lifting plate to pass through, while ensuring that the bottom plate will not fall off; the side panels and the box body are clearance-matched, and are inserted when receiving materials to prevent them from falling, and are pulled out when unloading.

[0010] In the above-mentioned automatic sorting device for thin paper tubes, there are circular grooves with a radius of 4 on the bottom plate, and the distance between adjacent grooves is 7.5-7.9 mm.

[0011] In the above-mentioned automatic sorting equipment for thin paper tubes, the scissor-type lifting mechanism has a set of scissor arms, one end of the lower scissor arm is fixed on the frame, and the other end is fixed on the screw slider, the upper end of the scissor arm is fixed on the lifting plate, and one end is fixed on the guide rail slider, and the power is provided by the rotation of the ball screw driven by the motor.

[0012] A control method for an automatic sorting device for thin paper tubes, comprising:

[0013] The unloading box is placed in place, and the receiving system runs from the unloading point to the receiving starting point, waiting to start;

[0014] When the system is at the horizontal left starting point, it enters the starting point compensation mode 1, and the thin wallpaper tube detection system detects the thin wallpaper tube. When 4 thin wallpaper tubes are detected, the system starts compensation movement 1 and moves to the corresponding compensation distance to ensure that the position of the next row of thin wallpaper tubes at the unloading port is 1mm ahead of the previous row of cooling;

[0015] After the compensation movement 1 is completed, the system enters the normal movement, and the thin wallpaper tubes are continuously detected during the entire compensation movement. When 7 thin wallpaper tubes are detected, the system starts the forward fixed distance movement 3, and then repeats the movement to the horizontal right limit;

[0016] When the system is in the horizontal right limit, the movement direction is reversed and the starting point compensation mode 2 is entered. The thin wallpaper tube detection system detects the thin wallpaper tubes. When 5 thin wallpaper tubes are detected, the system starts compensation movement 2. The moving distance must ensure that the thin wallpaper tubes in the previous row are staggered and placed, and the position of the next row of thin wallpaper tubes at the feeding port is 1mm ahead of the previous row of cooling;

[0017] After the compensation movement 2 is completed, the system enters the normal movement, and the thin wallpaper tubes are continuously detected during the entire compensation movement. When 7 thin wallpaper tubes are detected, the system starts the reverse fixed distance movement 3, and then repeats the movement to the horizontal left limit;

[0018] The material receiving system repeats the above movement for a set number of times, and after completion, it runs to the unloading point, stops discharging and starts unloading.

[0019] In the above control method, the speed of the thin paper tube can also be detected to match the speed of the receiving platform and the paper tube, thereby completing the synchronous collection action;

[0020] In the above control method, in the material receiving system, each movement must be completed before the next movement begins. According to the fastest discharge speed and the corresponding number of detected roots, the speeds of compensation movements 1, 2 and fixed distance movement 3 are set in sequence.

[0021] Aiming at the part of existing paper tube slitting equipment that requires manual collection, the present invention innovatively invents a sorting and collection device. The automated equipment replaces the manual collection, changes the production method, completes the improvement of factory automation, improves the overall production efficiency of the factory, and saves the factory production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 It is a schematic diagram of the main structure of the equipment.

[0023] Attached Figure 2 It is a schematic diagram of the structure of a scissor lift platform.

[0024] Attached Figure 3 It is a schematic diagram of the collection box structure.

[0025] Attached Figure 4 It is a schematic diagram of the structure of the horizontal moving platform.

[0026] Attached Figure 5 It is a schematic diagram of the structure of the conveying and separation mechanism.

[0027] Attached Figure 6It is a schematic diagram of the paper tube chute structure.

[0028] In the figure: 1. Horizontal transmission mechanism, 2. Scissor lift mechanism, 3. Unloading box fixing mechanism, 4. Unloading box, 5. Unloading chute, 6. Detection mechanism, 7. Third-stage conveyor, 8. Second-stage conveyor, 9. First-stage conveyor, 10. Thin wallpaper tube slide, 11. Ball screw mechanism, 12. Scissor arm, 13. Scissor upper guide slider, 14. Residual material collection box, 15. Unloading box movable bottom plate, 16. Scissor lift top plate, 17. Scissor lower guide slider 18. Speed ​​reducer, 19. Left limit device, 20. Synchronous belt, 21. Pressing block, 22. Right limit device, 23. Nozzle, 24. Collection box DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0030] Example:

[0031] The present invention relates to an automatic unloading and sorting device for thin paper tubes and a control method thereof, comprising a waste separation conveyor, a material distribution conveyor, a positive sequence conveyor, a thin paper tube chute, a material unloading box fixing mechanism, a scissor lift mechanism, and a horizontal transmission mechanism. The waste separation conveyor is a first-level conveyor, on which a thin paper tube chute is fixed, the thin paper tube chute cooperates with the discharge rod of the discharge device, and is at a fixed distance from the second-level conveyor; the material distribution conveyor is a second-level conveyor, the rear half of the thin paper tube chute is fixed above the second-level conveyor, and the first and second-level conveyors are placed on the same straight line; the positive sequence conveyor is a third-level conveyor, which is perpendicular to the second-level conveyor and obliquely below it, and the end of the third-level conveyor is arranged corresponding to the scissor lift mechanism; the scissor lift mechanism is fixed on the horizontal transmission mechanism, and the entire horizontal mechanism is fixed to the frame.

[0032] The waste separation conveyor is set at a speed of 20-40m / min to ensure that the waste will not fly to the second-stage conveyor and the received thin wallpaper tubes will be initially separated; the speed of the material separation conveyor is 30-50m / min to separate the adjacent thin wallpaper tubes to ensure that they will not block the card path when falling to the third-stage conveyor, and the distance between the waste separation conveyor and the material separation conveyor is 30-60mm to ensure that the waste is separated. The conveyor belts of the first and second stage conveyors use wear-resistant belts; the forward conveyor is placed vertically to the second-stage conveyor, and the conveyor belt of the forward conveyor uses a toothed belt with a tooth pitch of 10-15mm and a tooth depth of 2-3mm.

[0033] The wall material of the tube chute is iron, and the upper plate material is ferrite magnet, which is convenient for cleaning the chute by magnetic suction. There is a boss at the end of the thin paper tube chute to change the situation that the thin paper tube will tilt and fall in advance, so that the smoke will fall horizontally to the third-level conveyor after leaving the chute.

[0034] The unloading box is divided into a box body, side panels and a movable bottom plate. A rectangular frame is dug out at the bottom of the box body for the lifting plate to pass through, while ensuring that the bottom plate will not fall off; the side panels and the box body are fitted with clearance, and are inserted when receiving materials to prevent them from falling, and pulled out when unloading; there are circular grooves with a radius of 4 on the bottom plate, and the spacing between adjacent grooves is 7.5-7.9mm.

[0035] The scissor-type lifting mechanism has a set of scissor arms. One end of the lower scissor arm is fixed to the frame, and the other end is fixed to the screw slider. One end of the upper scissor arm is fixed to the lifting plate, and one end is fixed to the guide rail slider. The power is provided by the rotation of the ball screw driven by the motor.

[0036] The workflow of the entire device is as follows:

[0037] The present invention also discloses a thin paper tube sorting method, wherein the automatic unloading equipment includes a waste separation part, a separation part for adjacent thin paper tubes, a positive sequence thin paper tube, a thin paper tube detection system and an unloading system. The control method includes:

[0038] The unloading box is placed in place, and the receiving system runs from the unloading point to the receiving starting point, waiting to start.

[0039] When the system is at the horizontal left starting point, it enters the starting point compensation mode 1. The thin wallpaper tube detection system detects the thin wallpaper tube. When 4 thin wallpaper tubes are detected, the system starts compensation movement 1 and moves to the corresponding compensation distance to ensure that the next row of thin wallpaper tubes is 1mm ahead of the previous row of cooling at the feeding port. After the compensation movement 1 is completed, it enters normal movement, and the thin wallpaper tubes are continuously detected during the entire compensation movement. When 7 thin wallpaper tubes are detected, the system starts forward fixed distance movement 3, and then repeats the movement to the horizontal right limit. When the system is at the horizontal right limit, the movement direction is reversed and the starting point compensation mode 2 is entered at the same time. The thin wallpaper tube detection system detects the thin wallpaper tube. When 5 thin wallpaper tubes are detected, the system starts compensation movement 2. The moving distance must ensure that it is staggered with the previous row of thin wallpaper tubes, and ensure that the next row of thin wallpaper tubes is 1mm ahead of the previous row of cooling at the feeding port. After the compensation movement 2 is completed, the system enters normal movement, and the thin wallpaper tubes are continuously detected during the entire compensation movement. When 7 thin wallpaper tubes are detected, the system starts the reverse fixed distance movement 3, and then repeats the movement to the horizontal left limit.

[0040] The material receiving system repeats the above movement for a set number of times, and after completion, it runs to the unloading point, stops discharging and starts unloading.

[0041] Another control method is to match the speed of the receiving platform with the paper tube by detecting the speed of the thin paper tube to complete the synchronous collection action.

[0042] In the material receiving system, each movement must be completed before the next movement begins. According to the fastest discharge speed and the corresponding number of detected roots, the speeds of compensation movement 1, 2 and fixed distance movement 3 are set in sequence.

[0043] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic sorting device for thin paper tubes, characterized in that: It includes a waste separation conveyor, a material distribution conveyor, a forward conveyor, a thin paper tube chute, a material box fixing mechanism, a scissor lift mechanism, and a horizontal transmission mechanism; the waste separation conveyor is a first-level conveyor, on which a thin paper tube chute is fixed, the thin paper tube chute cooperates with the discharge rod of the discharge equipment, and is at a fixed distance from the second-level conveyor; the material distribution conveyor is a second-level conveyor, the rear half of the thin paper tube chute is fixed above the second-level conveyor, and the first and second-level conveyors are placed on the same straight line; the forward conveyor is a third-level conveyor, which is perpendicular to the second-level conveyor and obliquely below it, and the end of the third-level conveyor is arranged corresponding to the scissor lift mechanism; the scissor lift mechanism is fixed on the horizontal transmission mechanism, and the entire horizontal mechanism is fixed to the frame.

2. The automatic sorting device for thin paper tubes according to claim 1 is characterized in that: The waste separation conveyor is set at a speed of 20-40m / min to ensure that the waste will not fly to the second-stage conveyor and the received thin wallpaper tubes will be initially separated; the speed of the material separation conveyor is 30-50m / min to separate the adjacent thin wallpaper tubes to ensure that they will not block the card path when falling to the third-stage conveyor, and the distance between the waste separation conveyor and the material separation conveyor is 30-60mm to ensure that the waste is separated. The first and second stage conveyor belts use wear-resistant belts; the forward conveyor is placed vertically to the second stage conveyor, and the conveyor belt of the forward conveyor uses a toothed belt.

3. The automatic sorting device for thin paper tubes according to claim 2 is characterized in that: The tooth pitch is 10-15mm and the tooth depth is 2-3mm.

4. The automatic sorting device for thin paper tubes according to claim 3 is characterized in that: The tube chute wall material is iron, and the upper plate material is ferrite magnet. The magnetic suction method is used to facilitate the cleaning of the chute. There is a boss at the end of the thin paper tube chute to change the situation where the thin paper tube will tilt and fall in advance, so that the smoke will fall horizontally to the third-level conveyor after leaving the chute.

5. The automatic sorting device for thin paper tubes according to claim 1 is characterized in that: The unloading box is divided into a box body, side panels and a movable bottom plate. A rectangular frame is dug out at the bottom of the box body for the lifting plate to pass through, while ensuring that the bottom plate will not fall off; the side panels and the box body are fitted with clearance, and are inserted when receiving materials to prevent them from falling, and are pulled out when unloading.

6. The automatic sorting device for thin paper tubes according to claim 1 is characterized in that: There are circular grooves with a radius of 4 on the bottom plate, and the spacing between adjacent grooves is 7.5-7.9mm.

7. The automatic sorting device for thin paper tubes according to claim 1 is characterized in that: The scissor-type lifting mechanism has a set of scissor arms. One end of the lower scissor arm is fixed to the frame, and the other end is fixed to the screw slider. One end of the upper scissor arm is fixed to the lifting plate, and one end is fixed to the guide rail slider. The power is provided by the rotation of the ball screw driven by the motor.

8. A control method for automatic sorting equipment for thin paper tubes, characterized in that: include: The unloading box is placed in place, and the receiving system runs from the unloading point to the receiving starting point, waiting to start; When the system is at the horizontal left starting point, it enters the starting point compensation mode 1, and the thin wallpaper tube detection system detects the thin wallpaper tube. When 4 thin wallpaper tubes are detected, the system starts compensation movement 1 and moves to the corresponding compensation distance to ensure that the position of the next row of thin wallpaper tubes at the unloading port is 1mm ahead of the previous row of cooling; After the compensation movement 1 is completed, the system enters the normal movement, and the thin wallpaper tubes are continuously detected during the entire compensation movement. When 7 thin wallpaper tubes are detected, the system starts the forward fixed distance movement 3, and then repeats the movement to the horizontal right limit; When the system is at the horizontal right limit, the movement direction is reversed and the starting point compensation mode 2 is entered. The thin wallpaper tube detection system detects the thin wallpaper tubes. When 5 thin wallpaper tubes are detected, the system starts compensation movement 2. The moving distance must ensure that the thin wallpaper tubes in the previous row are staggered and placed, and the position of the next row of thin wallpaper tubes at the feeding port must be 1mm ahead of the previous row of cooling. After the compensation movement 2 is completed, the system enters the normal movement, and the thin wallpaper tubes are continuously detected during the entire compensation movement. When 7 thin wallpaper tubes are detected, the system starts the reverse fixed distance movement 3, and then repeats the movement to the horizontal left limit; The material receiving system repeats the above movement for a set number of times, and after completion, it runs to the unloading point, stops discharging and starts unloading.

9. The control method according to claim 8, characterized in that: It is also possible to match the speed of the receiving platform and the paper tube by detecting the speed of the thin paper tube, thereby completing the synchronous collection action.

10. The control method according to claim 9, characterized in that: In the material receiving system, each movement must be completed before the next movement begins. According to the fastest discharge speed and the corresponding number of detected roots, the speeds of compensation movement 1, 2 and fixed distance movement 3 are set in sequence.

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