Flexible automatic sealing device for carton

Abstract

The utility model discloses a carton flexible automatic sealing device which comprises a base, a door-shaped frame is fixedly connected to the top of the base, a lifting device is arranged in the door-shaped frame, a lifting plate is fixedly connected to the lifting end of the lifting device, a first connecting arm is fixedly connected to the bottom of the lifting plate, and a second connecting arm is rotationally connected to one end of the first connecting arm. One side of the second connecting arm is fixedly connected with a connecting seat, one side of the first connecting arm is rotatably connected with an elastic supporting rod, one end of the elastic supporting rod is slidably connected with the connecting seat, the second connecting arm is rotatably connected with a bent arm located on one side of the connecting seat, and the side, close to the second connecting arm, of the bent arm is fixedly connected with a tool apron. The surface of the cutter holder is fixedly connected with a cutter. The utility model relates to the technical field of carton sealing. According to the flexible automatic sealing device for the carton, the contradictions that automatic carton sealing equipment is large in size and high in cost, and manual packaging is low in efficiency and high in labor intensity are solved.

Description

Technical Field

[0001] This utility model relates to the field of carton sealing technology, specifically a flexible automatic carton sealing device. Background Technology

[0002] In the logistics and packaging industry, carton sealing is one of the most common packaging processes. Traditional carton sealing machines mostly rely on manual packing. On the one hand, manual packing is slow; skilled workers can only seal 1-2 cartons per minute, and prolonged repetitive work easily leads to fatigue, affecting overall packaging efficiency. Furthermore, uneven force applied manually can cause tape wrinkles and poor adhesion, especially in winter when tape stickiness decreases, significantly increasing the rate of unsealed cartons. On the other hand, the labor intensity is high. Although handheld tape packers reduce wrist load, frequent arm swinging is still required, making workers prone to muscle strain. While existing automated packing equipment can automate the process, its large footprint and high cost mean that small businesses still rely on manual packing. Therefore, there is a need to design a compact, simple, flexible automatic carton sealing device to improve the current packing methods of small businesses and increase production efficiency. Utility Model Content

[0003] This utility model provides a flexible automatic sealing device for carton, which solves the contradiction between the large size and high cost of automated sealing equipment and the low efficiency and high labor intensity of manual packaging.

[0004] To achieve the above objectives, the present invention provides a flexible automatic sealing device for cardboard boxes, comprising a base, a gate-shaped frame fixedly connected to the top of the base, a lifting device disposed within the gate-shaped frame, a lifting plate fixedly connected to the lifting end of the lifting device, a first connecting arm fixedly connected to the bottom of the lifting plate, a second connecting arm rotatably connected to one end of the first connecting arm, a connecting seat fixedly connected to one side of the second connecting arm, and an elastic support rod rotatably connected to one side of the first connecting arm. One end of the elastic support rod is slidably connected to the connecting seat, thereby enabling the second connecting arm to... The included angle between the first connecting arms varies from 85° to 120°. The second connecting arm is rotatably connected to a curved arm on one side of the connecting seat. A blade holder is fixedly connected to the side of the curved arm near the second connecting arm. A cutting blade is fixedly connected to the surface of the blade holder. A pressure wheel is rotatably connected to one end of the curved arm. A tension spring is provided between the curved arm and the second connecting arm. A tape holder is fixedly connected to one side of the top of the lifting plate. A support wheel is also fixedly connected to one end of the first connecting arm. A reel is rotatably connected to one end of the second connecting arm. A tape roll is provided on the surface of the tape holder. Adhesive for adhering tape is provided on the surface of the reel.

[0005] Preferably, when the clamping wheel is not subjected to external force, the horizontal plane at its bottom is located below the winding wheel, and when the clamping wheel is not subjected to external force, the bottom of the cutter is located below the horizontal plane at the bottom of the winding wheel.

[0006] Preferably, one end of the tape roll passes around the support wheel and adheres to the surface of the roll wheel, the angle between the first connecting arm and the bottom of the lifting plate is 120°-150°, and the tape frame and the first connecting arm are located in the middle of the lifting plate.

[0007] Preferably, a roller is rotatably connected to the top of the base, and left and right spiral screws are rotatably connected inside the base. One end of the left and right spiral screws extends outside the base and is fixedly connected to a first handle. Nuts are symmetrically arranged on the surface of the left and right spiral screws. Slide rails are fixedly connected to the left and right sides of the bottom of the inner wall of the base. Slider blocks are symmetrically arranged on the surface of the slide rails. A support rod is fixedly connected to the top of the slider. The top end of the support rod extends above the base and is fixedly connected to a side plate. A connecting frame is fixedly connected between the two support rods on the left and right sides. The connecting frame is fixedly connected to the corresponding nut.

[0008] Preferably, the lifting device includes two lead screws, which are vertically arranged inside the portal frame. A lifting nut is threaded onto the surface of the lead screw, and a synchronous pulley is fixedly connected to the surface of the lead screw near the top. A synchronous belt drives between the two synchronous pulleys. The top end of one of the lead screws extends to the top of the portal frame and is fixedly connected to a second handle. The lifting plate is fixedly connected to the surface of the lifting nut.

[0009] Preferably, the elastic support rod includes a fixed cylinder and a movable rod. One end of the movable rod is located inside the fixed cylinder and is slidably connected to the fixed cylinder. A first limiting ring is fixedly connected to the surface of the fixed cylinder, and a second limiting ring is fixedly connected to the surface of the movable rod. A spring is provided between the second limiting ring and the first limiting ring.

[0010] The present invention adopts the above-mentioned technical solution, and its beneficial effects include: This type of flexible automatic carton sealing device, with the connection of the general support rod, allows the included angle between the second connecting arm and the first connecting arm to vary from 85° to 120°. A curved arm is rotatably connected to one side of the second connecting arm, and a knife holder is fixedly connected to the side of the curved arm near the second connecting arm. A cutter is fixedly connected to the surface of the knife holder. A pressure wheel is rotatably connected to one end of the curved arm, and a tension spring is provided between the curved arm and the second connecting arm. During the movement of the carton, automatic tape application is achieved, and the pressure wheel can be used to compact it, ensuring the quality of the application. When the pressure wheel detaches from the carton, it automatically resets. During this process, the cutter automatically cuts the tape, improving sealing efficiency. The entire device has a simple structure, low cost, and is easy to promote to small businesses. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the base of this utility model;

[0013] Figure 3 This is a schematic diagram of the lifting device of this utility model;

[0014] Figure 4 This is a schematic diagram showing the connection between the second connecting arm and the first connecting arm of this utility model;

[0015] Figure 5 This is a schematic diagram showing the state of the second connecting arm and the bent arm during the sealing process of this utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the elastic support rod of this utility model.

[0017] In the diagram: 1-Base, 2-Gate frame, 3-Lifting device, 31-Screw, 32-Synchronous pulley, 33-Synchronous belt, 34-Lifting nut, 35-Second handle, 4-Lifting plate, 5-First connecting arm, 6-Second connecting arm, 7-Connecting seat, 8-Elastic support rod, 81-Fixed cylinder, 82-Moving rod, 83-Second limit ring, 84-First limit ring, 85-Spring, 9-Tape holder, 10-Tape roll, 11-Support wheel, 12-Rolling wheel, 13-Bent arm, 14-Knife holder, 15-Cutter, 16-Pressure wheel, 17-Tension spring, 18-Roller, 19-Left and right rotating screw, 20-Nut, 21-Slide rail, 22-Slider, 23-Support rod, 24-Connecting frame, 25-Side plate, 26-First handle, 27-Carton. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Example 1: Please refer to Figure 1-6This utility model provides a technical solution: a flexible automatic sealing device for cartons, including a base 1, a gate frame 2 fixedly connected to the top of the base 1, a lifting device 3 disposed inside the gate frame 2, and a lifting plate 4 fixedly connected to the lifting end of the lifting device 3. The lifting device 3 includes two lead screws 31, which are vertically disposed inside the gate frame 2. A lifting nut 34 is threadedly connected to the surface of the lead screw 31. A synchronous pulley 32 is fixedly connected to the surface of the lead screw 31 near the top. A synchronous belt 33 is connected between the two synchronous pulleys 32. The top end of one of the lead screws 31 extends to the top of the gate frame 2 and is fixedly connected to a second handle 35. The lifting plate 4 is fixedly connected to the surface of the lifting nut 34. By rotating the second handle 35, the two lead screws 31 rotate synchronously through the transmission of the synchronous belt 33, driving the lifting plate 4 to move up and down, thereby accommodating cartons of different heights.

[0020] A first connecting arm 5 is fixedly connected to the bottom of the lifting plate 4. The angle between the first connecting arm 5 and the bottom of the lifting plate 4 is 120°-150°. A second connecting arm 6 is rotatably connected to one end of the first connecting arm 5. A connecting seat 7 is fixedly connected to one side of the second connecting arm 6. An elastic support rod 8 is rotatably connected to one side of the first connecting arm 5. One end of the elastic support rod 8 is slidably connected to the connecting seat 7. The angle between the second connecting arm 6 and the first connecting arm 5 varies from 85° to 120° through the connection of the elastic support rod 8. A support wheel 11 is also fixedly connected to one end of the first connecting arm 5. A roller 12 is rotatably connected to one end of the second connecting arm 6. When one side of the roller 12 is squeezed by the carton, it drives the second connecting arm 6 to rotate around one end of the first connecting arm 5. The elastic support rod 8 is compressed until the roller 12 moves the top of the carton.

[0021] The second connecting arm 6 is rotatably connected to a bent arm 13 located on one side of the connecting seat 7. A knife holder 14 is fixedly connected to the side of the bent arm 13 near the second connecting arm 6. A cutter 15 is fixedly connected to the surface of the knife holder 14. A limit groove is provided on the rotating seat connected to the bent arm 13 to prevent one side of the bent arm 13 from touching the second connecting arm 6. A pressure wheel 16 is rotatably connected to one end of the bent arm 13. A tension spring 17 is provided between the bent arm 13 and the second connecting arm 6. When the roller 12 just moves the top of the carton, one side of the pressure wheel 16 contacts the side wall of the carton, which can further press the tape. As the carton moves, the relative position between the roller 12 and the carton changes, the bent arm 13 rotates, the pressure wheel 16 also moves to the top of the carton, and the tension spring 17 is stretched.

[0022] A tape holder 9 is fixedly connected to the top side of the lifting plate 4. A tape roll 10 is provided on the surface of the tape holder 9. Adhesive for adhering tape is provided on the surface of the reel 12. One end of the tape roll 10 passes around the support wheel 11 and adheres to the surface of the reel 12. The adhesive side of the tape roll 10 is located on the other side in contact with the reel 12, so that the tape adheres to the surface of the carton and achieves sealing.

[0023] The tape holder 9 and the first connecting arm 5 are located in the middle of the lifting plate 4. Since the sealing position of the carton is usually located in the middle of the carton, it is convenient to seal the carton by setting it in the middle of the lifting plate 4.

[0024] When the pressure roller 16 is not subjected to external force, the horizontal plane at its bottom is located below the roll 12, which ensures that the pressure roller 16 can drive the curved arm 13 to rotate under the push of the carton, thereby improving the adhesion between the tape and the carton.

[0025] When the pressure roller 16 is not subjected to external force, the bottom of the cutter 15 is located below the horizontal plane where the bottom of the roll 12 is located, ensuring that the pressure roller 16 is reset under the action of the tension spring 17 when it is not subjected to external force, and the tape is cut by the cutter 15, thus realizing automatic tape cutting during the sealing process.

[0026] A roller 18 is rotatably connected to the top of the base 1, reducing the friction between the carton and the base 1. A left-right rotating screw 19 is also rotatably connected inside the base 1. The axial direction of the left-right rotating screw 19 is consistent with the length direction of the lifting plate 4. One end of the left-right rotating screw 19 extends outside the base 1 and is fixedly connected to a first handle 26. Nuts 20 are symmetrically arranged on the surface of the left-right rotating screw 19. The rotation of the left-right rotating screw 19 is driven by the first handle 26, enabling the two nuts 20 to move towards or away from each other. Slide rails 21 are fixedly connected to the left and right sides of the bottom inner wall of the base 1. The surface of the slide rails 21... A slider 22 is symmetrically arranged, and a support rod 23 is fixedly connected to the top of the slider 22. The top of the support rod 23 extends to the top of the base 1 and is fixedly connected to a side plate 25. A connecting frame 24 is fixedly connected between the two support rods 23 on the left and right sides. The connecting frame 24 is fixedly connected to the corresponding nut 20. Therefore, when the two nuts 20 move towards or away from each other, the distance between the two side plates 25 will change, but the center position between them will not change. Therefore, the two side plates 25 limit the carton and ensure that the sealing point is located below the roller 12, ensuring accurate sealing position.

[0027] The elastic support rod 8 includes a fixed cylinder 81 and a movable rod 82. One end of the movable rod 82 is located inside the fixed cylinder 81 and is slidably connected to the fixed cylinder 81. A damping block is fixedly connected to the end of the movable rod 82 inside the fixed cylinder 81. This prevents the movable rod 82 from moving back and forth repeatedly due to the extension and retraction of the spring 85. It also fixes one end of the movable rod 82 inside the fixed cylinder 81, preventing the fixed cylinder 81 from separating from the movable rod 82. A first limiting ring 84 is fixedly connected to the surface of the fixed cylinder 81, and a second limiting ring 83 is fixedly connected to the surface of the movable rod 82. A spring 85 is provided between the second limiting ring 83 and the first limiting ring 84.

[0028] When sealing the carton, first adjust the distance between the side panels 25 and the position of the lifting plate 4 according to the size of the carton. Then, the carton moves from one side of the top roller 12 on the base to the side of the pressure roller 16. When one side of the roller 12 is squeezed by the carton, it drives the second connecting arm 6 to rotate around one end of the first connecting arm 5, and the elastic support rod 8 is compressed. During the rolling process, the roller 12 adheres the tape to the surface of the carton. During the rotation of the second connecting arm 6, the water level of the roller 12 rises until it moves the top of the carton. When the roller 12 just moves the top of the carton, One side of the pressure roller 16 contacts the side wall of the carton, which can further compress the tape. As the carton moves, the relative position between the roller 12 and the carton changes, the curved arm 13 rotates, and the pressure roller 16 also moves to the top of the carton. The tension spring 17 is stretched to seal the top of the carton. When the roller 12 disengages from the top of the carton, it resets under the action of the elastic support rod 8. At this time, the pressure roller 16 moves to the edge of the carton. When the pressure roller 16 disengages from the carton, the curved arm 13 resets under the action of the tension spring 17, and the cutter 15 cuts the tape.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] The above description is merely a preferred embodiment of the prior art for fixing and installing this utility model, and is not intended to limit this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flexible automatic sealing device for cardboard boxes, comprising a base (1), wherein a door-shaped frame (2) is fixedly connected to the top of the base (1), characterized in that: A lifting device (3) is provided inside the door frame (2). A lifting plate (4) is fixedly connected to the lifting end of the lifting device (3). A first connecting arm (5) is fixedly connected to the bottom of the lifting plate (4). A second connecting arm (6) is rotatably connected to one end of the first connecting arm (5). A connecting seat (7) is fixedly connected to one side of the second connecting arm (6). An elastic support rod (8) is rotatably connected to one side of the first connecting arm (5). One end of the elastic support rod (8) is slidably connected to the connecting seat (7). The angle between the second connecting arm (6) and the first connecting arm (5) varies from 85° to 120° through the connection of the elastic support rod (8). The second connecting arm (6) is located at the connecting seat (7). A curved arm (13) is rotatably connected to one side of the first connecting arm (5). A knife holder (14) is fixedly connected to the side of the curved arm (13) near the second connecting arm (6). A cutter (15) is fixedly connected to the surface of the knife holder (14). A pressure wheel (16) is rotatably connected to one end of the curved arm (13). A tension spring (17) is provided between the curved arm (13) and the second connecting arm (6). A tape holder (9) is fixedly connected to one side of the top of the lifting plate (4). A support wheel (11) is also fixedly connected to one end of the first connecting arm (5). A reel (12) is rotatably connected to one end of the second connecting arm (6). A tape roll (10) is provided on the surface of the tape holder (9). Adhesive for adhering tape is provided on the surface of the reel (12).

2. The flexible automatic sealing device for cardboard boxes according to claim 1, characterized in that: When the pressure roller (16) is not subjected to external force, the horizontal plane at its bottom is below the winding roller (12), and when the pressure roller (16) is not subjected to external force, the bottom of the cutter (15) is below the horizontal plane at the bottom of the winding roller (12).

3. The flexible automatic sealing device for cardboard boxes according to claim 1, characterized in that: One end of the tape roll (10) passes around the support wheel (11) and adheres to the surface of the roll (12). The angle between the first connecting arm (5) and the bottom of the lifting plate (4) is 120°-150°. The tape holder (9) and the first connecting arm (5) are located in the middle of the lifting plate (4).

4. The flexible automatic sealing device for cardboard boxes according to claim 1, characterized in that: A roller (18) is rotatably connected to the top of the base (1). A left and right spiral screw (19) is also rotatably connected inside the base (1). One end of the left and right spiral screw (19) extends to the outside of the base (1) and is fixedly connected to a first handle (26). Nuts (20) are symmetrically arranged on the surface of the left and right spiral screw (19). Slide rails (21) are fixedly connected to the left and right sides of the bottom of the inner wall of the base (1). Slider blocks (22) are symmetrically arranged on the surface of the slide rails (21). A support rod (23) is fixedly connected to the top of the slider (22). The top of the support rod (23) extends to the top of the base (1) and is fixedly connected to a side plate (25). A connecting frame (24) is fixedly connected between the two support rods (23) on the left and right. The connecting frame (24) is fixedly connected to the corresponding nut (20).

5. The flexible automatic sealing device for cardboard boxes according to claim 1, characterized in that: The lifting device (3) includes a lead screw (31), two of which are vertically arranged inside the portal frame (2). The surface of the lead screw (31) is threaded with a lifting nut (34). The surface of the lead screw (31) and near the top are fixedly connected with a synchronous pulley (32). A synchronous belt (33) is connected between the two synchronous pulleys (32). The top of one of the lead screws (31) extends to the top of the portal frame (2) and is fixedly connected with a second handle (35). The lifting plate (4) is fixedly connected to the surface of the lifting nut (34).

6. The flexible automatic sealing device for cardboard boxes according to claim 1, characterized in that: The elastic support rod (8) includes a fixed cylinder (81) and a movable rod (82). One end of the movable rod (82) is located inside the fixed cylinder (81) and is slidably connected to the fixed cylinder (81). A first limiting ring (84) is fixedly connected to the surface of the fixed cylinder (81), and a second limiting ring (83) is fixedly connected to the surface of the movable rod (82). A spring (85) is provided between the second limiting ring (83) and the first limiting ring (84).

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