Express plastic bag cutting machine

Abstract

The invention relates to an express plastic bag cutting machine, which belongs to the field of garbage treatment machinery and comprises a shell, a fixing part, a cutting part and a control part. An express plastic bag is detected through a photoelectric sensor, a signal is fed back to a single chip microcomputer control system, the control system sends an instruction to stepping motors of the fixing part and the cutting part, a transmission mechanism converts movement, and the purpose of fixing and cutting the express plastic bag is achieved. The express plastic bag cutting device can conveniently and safely cut express plastic bags and prevent consumers from leaking personal information.

Description

Technical Field

[0001] The invention relates to an express plastic bag cutting machine and belongs to the field of garbage processing machinery. Background Art

[0002] The plastic bag cutting machines currently on the market are used in industries and waste recycling stations. They have strong processing capacity, good crushing effect, wide application, high degree of automation, and can improve resource utilization. However, the existing plastic bag cutting machines are large in size, not easy to place and operate at home, and are noisy during use, have high energy consumption, high maintenance costs, and high safety risks. Therefore, it is necessary to solve this technical problem. Summary of the invention

[0003] The main purpose of the present invention is to provide a courier plastic bag cutting machine for household use to avoid leakage of personal information.

[0004] The technical solution of the present invention is: a courier plastic bag cutting machine, including a housing, a fixing part, a cutting part, a control part, and a plurality of bolts, nuts and other connecting parts. The fixing part includes: a stepper motor, a stepper motor fixing frame, a stepper motor bracket, a gear, a rack, a slide, a key, a coupling, a fixing rod, and a stepper motor fixing frame. The cutting part includes: a stepper motor bracket, a stepper motor, a gear, a rack, a coupling, a key, a slide, a blade, a gasket, a nut, a screw rod, and a blade connecting frame. The control part includes a photoelectric sensor, a single-chip microcomputer, and a connecting wire.

[0005] Principle of the invention: There is a delivery port on the top of the shell, and a baffle under the delivery port. Two fixing plates are provided inside the shell to facilitate the installation of the fixing part, the cutting part and the photoelectric switch. The fixing part is located on the first layer inside the shell, and its characteristics are: the motor drives the gear to rotate, the gear drives the rack to move back and forth, and the rack pushes the fixing rod to achieve the function of pressing and loosening the plastic bag. The cutting part is located on the second layer inside the shell, and its characteristics are: the motor drives the gear to rotate, the gear drives the rack to move up and down, and the rack drives the blade through the blade connecting frame to achieve the function of cutting the express plastic bag. The basic principle of the control part is: when the express plastic bag is put into the shell, the photoelectric sensor responds and transmits the signal to the single-chip microcomputer. The single-chip microcomputer sends an instruction to the two stepper motors in the fixed part to rotate forward for one circle, maintain for time t1, and reverse for one circle. With the movement of the gear rack, the fixed rods on both sides move forward and press the express plastic bag; within the time range of t1 maintained by the stepper motor in the fixed part, the single-chip microcomputer sends an instruction to rotate forward and reverse for one circle to the motor in the cutting part. With the movement of the gear rack, the blade connecting frame completes an up and down movement, and the order number of the express plastic bag is cut; after the stepper motor in the fixed part maintains for t1 time, the stepper motor in the fixed part reverses for one circle and returns to the initial state, and the system completes a cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural diagram of an express plastic bag cutting machine. Figure 2 It is a structural diagram of the fixed part. Figure 3 It is a schematic diagram of the structure of the cutting part. In the figure, 1. shell, 2. delivery port, 3. front baffle, 4. rear baffle, 5. photoelectric sensor, 6. first layer fixing plate inside the shell, 7. second layer fixing plate inside the shell, 8. storage barrel, 9. stepper motor, 10. stepper motor fixing frame, 11. stepper motor bracket, 12. gear, 13. rack, 14. slide, 15. key, 16. coupling, 17. fixing rod, 18. stepper motor fixing frame, 19. stepper motor bracket, 20. stepper motor, 21. gear, 22. rack, 23. coupling, 24. key, 25. slide, 26. blade, 27. gasket, 28. nut, 29. screw, 30. blade connecting frame. DETAILED DESCRIPTION

[0007] The structure of the present invention is further described in detail below in conjunction with the accompanying drawings. Figure 1 It is a schematic diagram of the structure of the present invention. The delivery port 2 is located at the top of the housing 1. The front baffle 3 and the rear baffle 4 are located below the delivery port 2. The front baffle and the rear baffle are symmetrically distributed on the other side of the housing. The first layer of fixing plate 6 and the second layer of fixing plate 7 are distributed in the housing 1. Two fixing parts and a photoelectric sensor 5 are distributed on the first layer of fixing plate 6. The second layer of fixing plate 7 is used to fix the cutting part. Among them, the fixing parts are symmetrically distributed on both sides of the housing. The photoelectric sensor 5 should be avoided from being blocked by the blade connecting frame during installation. Figure 2 It is a structural schematic diagram of the fixed part of the present invention. The stepper motor 9 of the fixed part is fixed by a fixing frame 10 and a bracket 11. The stepper motor 9 is connected to a gear 12 through a key 15 and a coupling 16. The gear 12 drives the rack 13 to move forward and backward along the slide groove 14. The fixed rod 17 connected to the rack 13 will approach or move away from the rear baffle 4, thereby realizing the function of tightening and loosening the express plastic bag. Figure 3 : is a schematic diagram of the structure of the cutting part of the present invention. The stepper motor 20 of the cutting part is fixed by the fixing frame 18 and the bracket 19. The stepper motor 20 is connected to the gear 21 through the key 24 and the coupling 23. The gear 21 drives the rack 22 to move up and down along the slide 25. The rack 22 is fixed to the blade connecting frame 30. The blade connecting frame 30 is connected to the blade 26 through the screw rod 29, the nut 28 and the gasket 27. As the stepper motor 20 rotates, the blade 26 moves up and down to cut the express plastic bag.

Claims

1. A courier plastic bag cutting machine, comprising a housing, a fixing part, a cutting part and a control part. A delivery port is provided on the top of the housing, and two baffles are provided below the delivery port. The fixing part realizes forward and backward movement through a gear rack mechanism, and presses the fixing plate against the rear baffle. The cutting part is driven by a gear rack mechanism, converting the rotational motion of the motor into the up and down motion of the blade connecting frame. The blade is fixed to the screw rod through a nut and a gasket, and moves with the blade connecting frame. The control part detects the courier plastic bag through a photoelectric sensor and transmits the signal to the control system.

2. The express plastic bag cutting machine according to claim 1, characterized in that: The fixing part and the cutting part are both driven by a gear rack mechanism.

3. The express plastic bag cutting machine according to claim 1, characterized in that: The cutting part uses a blade to cut the express plastic bag.

4. The express plastic bag cutting machine according to claim 1, characterized in that: The tool holder part uses nuts and washers to fix the blade on the screw rod.

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