Carton paperboard cutting device for household appliance packaging

Abstract

The utility model discloses a carton paperboard cutting device for household appliance packaging, which comprises a handle, the bottom end of the handle is provided with a cutting knife, two sides of the cutting knife are respectively provided with a connecting rod, the top ends of the connecting rods are fixedly connected with the handle, the center of the cutting knife is provided with a rotating shaft, and the rotating shaft is fixedly connected with the handle. And the two ends of the rotating shaft penetrate into the bottom ends of the connecting rods correspondingly and are rotationally connected with the connecting rods, limiting grooves are formed in the middles of the connecting rods, inverted-U-shaped adjusting rods penetrate through the limiting grooves, and the two bottom ends of the inverted-U-shaped adjusting rods are connected with rolling wheels correspondingly. The cutting knife is driven by the motor to rotate at a high speed to cut the household appliance packaging carton, so that the dismantling process is more convenient, and time and labor are saved; during cutting, the cutter goes deep into the paperboard until the bottom of the roller abuts against the surface of the paperboard, at the moment, the paperboard can be sawed off, and the cutter cannot go deep into the carton due to limiting of the roller, so that the paperboard is sawed off, and internal household appliances cannot be damaged due to excessive depth.

Description

Technical Field

[0001] The utility model relates to the technical field of cardboard cutting, in particular to a carton cardboard cutting device for household appliance packaging. Background Art

[0002] In the current era of e-commerce economy, buyers and sellers conduct various business activities without meeting each other. Due to the high quality and low price of e-commerce products, consumers are increasingly inclined to and dependent on online shopping. From daily necessities, clothing to large household appliances and home furnishings, they can be purchased on the online platform and delivered to the buyers by mail. Since express delivery may be subject to large bumps and collisions during transportation, relatively expensive and easily damaged household appliances are usually packaged in thicker cartons. The cardboard used in such cartons is usually composed of multiple layers of straight cardboard and corrugated board, which have a certain hardness and thickness. At the same time, in order to ensure the solidity of the packaging, the joints between the cardboards are fixed with U-shaped nails, threaded nails, corner nails, etc. The above factors also make it difficult for buyers to remove the packaging. To this end, we propose a carton cardboard cutting device for household appliance packaging to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a carton paperboard cutting device for household appliance packaging, which uses a motor to drive a cutting knife to rotate at high speed to cut the carton, and can adjust the relative height of a roller and a cutting knife according to the thickness of the cut paperboard, so that the cutting knife keeps a fixed depth of cutting the paperboard, avoids excessive force causing the cutting knife to cut too deep into the paperboard and cut the household appliance inside the paperboard, thereby solving the problems in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A carton and paperboard cutting device for household appliance packaging comprises a handle, a cutting knife is arranged at the bottom end of the handle, a connecting rod is arranged on each side of the cutting knife, the top end of the connecting rod is fixedly connected to the handle, a rotating shaft is arranged at the center of the cutting knife, the two ends of the rotating shaft respectively penetrate the bottom end of the connecting rod and are rotatably connected thereto, a limiting groove is arranged in the middle of the connecting rod, an inverted U-shaped adjusting rod passes through the limiting groove, and two bottom ends of the inverted U-shaped adjusting rod are respectively connected to rollers.

[0006] Preferably, the inverted U-shaped adjustment rod includes a horizontal rod and a vertical rod, both ends of the horizontal rod are fixedly connected to a vertical rod respectively, and the horizontal rod passes through two limiting grooves.

[0007] Preferably, a threaded rod is provided on the outward side of one of the connecting rods, the threaded rod is vertically arranged, the bottom end of the threaded rod is rotatably connected to the vertical rod through a mounting plate, and the top end of the threaded rod penetrates into the mounting box.

[0008] Preferably, a knob is provided on the outward side of the installation box, the shaft of the knob penetrates into the installation box, and the shaft of the knob and the top end of the threaded rod are both provided with bevel gears and mesh with each other.

[0009] Preferably, a sliding rod is provided on the outer side of another connecting rod opposite to the threaded rod, and the upper and lower ends of the sliding rod are respectively connected to the connecting rod via a mounting plate.

[0010] Preferably, the mounting plate and the mounting box are both located at two ends of the limiting groove.

[0011] Preferably, the sliding rod and the threaded rod respectively pass through two sides of the cross bar, the sliding rod is slidably connected to the cross bar, and the threaded rod is threadably matched with the cross bar.

[0012] Preferably, a roller is provided at the bottom end of the vertical rod, and the rotation axes of the two rollers are on the same straight line, and the rotation axes of the rollers are parallel to the rotation axis of the cutting knife.

[0013] Preferably, a motor is arranged in the handle, and a transmission belt is arranged on the output shaft of the motor. The transmission belt passes through one of the connecting rods and is transmission-connected to the rotating shaft.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model drives the cutting knife to rotate at high speed through a motor to cut the home appliance packaging carton, without manually removing the fixed cardboard parts, making the disassembly process more convenient and saving time and manpower.

[0016] 2. In the utility model, the vertical distance between the contact end of the roller and the cutting knife and the cardboard is adjustable. When cutting, the cutting knife goes deep into the cardboard until the bottom of the roller contacts the surface of the cardboard. At this time, the cardboard can be sawed and the cutting knife cannot go deeper into the carton due to the limitation of the roller, so that the cardboard can be sawed but the household appliances inside will not be damaged due to excessive penetration. When cutting along the line, the roller rolls on the outer surface of the cardboard, which limits the cutting depth of the cutting knife and reduces the friction during movement, thereby improving the smoothness of cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the first axonometric drawing of the overall structure of the utility model;

[0018] Figure 2 It is the second axonometric drawing of the overall structure of the utility model;

[0019] Figure 3 This is a first state diagram of the overall structure of the utility model;

[0020] Figure 4 This is a second state diagram of the overall structure of the utility model;

[0021] Figure 5 It is a partial structural sectional view of the utility model.

[0022] In the figure: 1. handle; 2. cutting knife; 3. connecting rod; 4. rotating shaft; 5. limiting groove; 6. inverted U-shaped adjusting rod; 7. roller; 8. horizontal rod; 9. vertical rod; 10. threaded rod; 11. mounting plate; 12. mounting box; 13. knob; 14. bevel gear; 15. sliding rod; 16. motor; 17. transmission belt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to solve the problem of difficulty in removing the cardboard of home appliance cartons in the prior art, the following technical solution is provided. Figure 1-5 ;

[0025] A carton and paperboard cutting device for household appliance packaging comprises a handle 1, a cutting knife 2 is arranged at the bottom end of the handle 1, a connecting rod 3 is arranged on each side of the cutting knife 2, the top end of the connecting rod 3 is fixedly connected to the handle 1, a rotating shaft 4 is arranged at the center of the cutting knife 2, the two ends of the rotating shaft 4 respectively penetrate the bottom end of the connecting rod 3 and are rotatably connected thereto, a limiting groove 5 is arranged in the middle of the connecting rod 3, the limiting groove 5 limits an inverted U-shaped adjusting rod 6 to prevent the inverted U-shaped adjusting rod 6 from angular deviation when it moves vertically, an inverted U-shaped adjusting rod 6 passes through the limiting groove 5, and rollers 7 are respectively connected to the two bottom ends of the inverted U-shaped adjusting rod 6.

[0026] The inverted U-shaped adjustment rod 6 includes a crossbar 8 and a vertical rod 9, each of the two ends of the crossbar 8 is fixedly connected to a vertical rod 9, and the crossbar 8 passes through two limit grooves 5; a threaded rod 10 is provided on the outward side of one of the connecting rods 3, and the threaded rod 10 is vertically arranged. The bottom end of the threaded rod 10 is rotatably connected to the vertical rod 9 through a mounting plate 11, and the top end of the threaded rod 10 penetrates into the mounting box 12; a knob 13 is provided on the outward side of the mounting box 12, and the shaft of the knob 13 penetrates into the mounting box 12, and the shaft of the knob 13 and the top end of the threaded rod 10 are both provided with bevel gears 14 and mesh with each other; and the threaded rod 10 A sliding rod 15 is provided on the outer side of the other connecting rod 3, which can limit the cross bar 8 when it is displaced. The upper and lower ends of the sliding rod 15 are connected to the connecting rod 3 through a mounting plate 11 respectively; the sliding rod 15 and the threaded rod 10 respectively pass through the two sides of the cross bar 8, the sliding rod 15 is slidably connected to the cross bar 8, and the threaded rod 10 is threadedly matched with the cross bar 8; the mounting plate 11 and the mounting box 12 are both located at the two ends of the limiting groove 5; a roller 7 is provided at the bottom end of the vertical rod 9, and the rotation axes of the two rollers 7 are on the same straight line, and the rotation axes of the rollers 7 are parallel to the rotation axis of the cutting knife 2.

[0027] Specifically, by turning the knob 13, the threaded rod 10 is driven to rotate through the bevel gear 14, the threaded rod 10 drives the cross bar 8 to move longitudinally, the cross bar 8 drives the vertical rod 9 to move longitudinally, and the vertical rod 9 drives the roller 7 to move longitudinally, thereby adjusting the vertical distance between the bottom end of the roller 7 and the bottom end of the cutting knife 2.

[0028] A motor 16 is arranged in the handle 1, and a transmission belt 17 is arranged on the output shaft of the motor 16. The transmission belt 17 passes through one of the connecting rods 3 and is connected to the rotating shaft 4. When the motor 16 is started, the output shaft drives the rotating shaft 4 to rotate at a high speed through the transmission belt 17, and the rotating shaft 4 drives the cutting knife 2 to rotate, and the cutting knife 2 cuts the carton cardboard.

[0029] Working principle: Before use, adjust the relative height difference between the bottom of the roller 7 and the bottom of the cutting knife 2 by rotating the knob 13, so that the height difference is equal to or slightly greater than the thickness of the cardboard. When cutting, hold the handle 1 and make it perpendicular to the plane where the cardboard is located. The motor 16 drives the cutting knife 2 to rotate at high speed through the transmission belt 17 and the rotating shaft 4. The cutting knife 2 penetrates into the cardboard until the bottom of the roller 7 touches the surface of the cardboard. At this time, the cardboard can be sawed and the cutting knife 2 cannot continue to penetrate into the carton due to the limitation of the roller 7, so that the cardboard can be sawed but the household appliances inside will not be damaged due to excessive penetration. Then the cutting knife 2 cuts along the cutting line, and the roller 7 rolls on the outer surface of the cardboard, which limits the cutting depth of the cutting knife 2 and reduces the friction during movement.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carton and paperboard cutting device for household appliance packaging, comprising a handle (1), characterized in that: A cutting knife (2) is provided at the bottom end of the handle (1), and a connecting rod (3) is provided on each side of the cutting knife (2). The top end of the connecting rod (3) is fixedly connected to the handle (1), and a rotating shaft (4) is provided at the center of the cutting knife (2). The two ends of the rotating shaft (4) respectively penetrate the bottom end of the connecting rod (3) and are rotatably connected thereto. A limiting groove (5) is provided in the middle of the connecting rod (3), and an inverted U-shaped adjusting rod (6) passes through the limiting groove (5). The two bottom ends of the inverted U-shaped adjusting rod (6) are respectively connected to rollers (7).

2. A carton and paperboard cutting device for household appliance packaging according to claim 1, characterized in that: The inverted U-shaped adjustment rod (6) comprises a cross rod (8) and a vertical rod (9), the two ends of the cross rod (8) are respectively fixedly connected to a vertical rod (9), and the cross rod (8) passes through the two limit grooves (5).

3. A carton and paperboard cutting device for household appliance packaging according to claim 2, characterized in that: A threaded rod (10) is provided on the outward side of one of the connecting rods (3), the threaded rod (10) is arranged vertically, the bottom end of the threaded rod (10) is rotatably connected to the vertical rod (9) through a mounting plate (11), and the top end of the threaded rod (10) is inserted into a mounting box (12).

4. A carton and paperboard cutting device for household appliance packaging according to claim 3, characterized in that: A knob (13) is provided on the outward side of the installation box (12), the shaft of the knob (13) penetrates into the installation box (12), and the shaft of the knob (13) and the top end of the threaded rod (10) are both provided with bevel gears (14) and mesh with each other.

5. A carton and paperboard cutting device for household appliance packaging according to claim 4, characterized in that: A sliding rod (15) is provided on the outer side of another connecting rod (3) opposite to the threaded rod (10), and the upper and lower ends of the sliding rod (15) are respectively connected to the connecting rod (3) via a mounting plate (11).

6. A carton and paperboard cutting device for household appliance packaging according to claim 5, characterized in that: The mounting plate (11) and the mounting box (12) are both located at two ends of the limiting groove (5).

7. A carton and paperboard cutting device for household appliance packaging according to claim 6, characterized in that: The sliding rod (15) and the threaded rod (10) respectively penetrate the two sides of the cross bar (8); the sliding rod (15) is slidably connected to the cross bar (8); and the threaded rod (10) is threadably matched to the cross bar (8).

8. A carton and paperboard cutting device for household appliance packaging according to claim 7, characterized in that: A roller (7) is provided at the bottom end of the vertical rod (9), and the rotation axes of the two rollers (7) are located on the same straight line, and the rotation axes of the rollers (7) are parallel to the rotation axis of the cutting knife (2).

9. A carton and paperboard cutting device for household appliance packaging according to claim 8, characterized in that: A motor (16) is arranged in the handle (1), and a transmission belt (17) is arranged on the output shaft of the motor (16). The transmission belt (17) passes through one of the connecting rods (3) and is in transmission connection with the rotating shaft (4).

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