A high-efficiency carton sealing machine for laundry detergent packaging

By employing technologies such as tape mounting brackets, electrically driven swing arms, and infrared sensors, the problem of inaccurate positioning in traditional carton sealing machines has been solved, enabling efficient and precise sealing of laundry detergent packaging and improving sealing quality and production efficiency.

CN224428110UActive Publication Date: 2026-06-30HEBEI BEITELI WASHING PROD DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI BEITELI WASHING PROD DEV CO LTD
Filing Date
2025-07-08
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional laundry detergent packaging carton sealing machines lack a precise positioning system, which causes cartons to easily shift during transport, resulting in inaccurate sealing positions, weak tape adhesion, and poor sealing quality. Furthermore, the equipment has poor stability and insufficient adaptability, making it difficult to meet diverse production needs.

Method used

The tape mounting bracket and support rod guide the tape to be applied precisely. The electrically driven swing rod drives the tape application wheel to tightly adhere the tape to the seam of the carton. The carton pressing frame and pressing block press the top cover of the carton firmly, and the anti-detachment pressing plate assists in fixing it. The height adjustment component adapts to different carton sizes, and the infrared sensor accurately positions the carton to achieve synchronous sealing operation.

Benefits of technology

Ensure the tape adheres firmly to avoid inaccurate sealing positions, improve sealing quality and production efficiency, enhance equipment stability and adaptability, accommodate different carton specifications, and achieve efficient and precise sealing.

✦ Generated by Eureka AI based on patent content.

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Abstract

This disclosure relates to the technical field of carton sealing machines. One embodiment of this disclosure provides a high-efficiency carton sealing machine for laundry detergent packaging, comprising: a frame, a gantry frame, and a pair of side conveyor belts. The gantry frame is fixed to the top of the frame. The side conveyor belts are respectively connected to both sides of the top of the frame via linear drive. Rolling rods are rotatably connected inside the frame. A main board is disposed on the gantry frame and the frame. A carton sealing assembly is disposed on the main board. A height adjustment assembly is disposed between the main board and the gantry frame. The carton sealing assembly includes a tape mounting bracket. A swing rod is disposed between the fixed plates. The swing rod is driven by electricity to swing. One end of the swing rod is provided with a tape-applying wheel. This technical solution solves the technical problem in the prior art where, due to the high speed and large output of laundry detergent production lines, traditional carton sealing machines lack a precise positioning system, causing cartons to easily shift during transport, resulting in inaccurate sealing positions, weak tape adhesion, and seriously affecting sealing quality.
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Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of carton sealing machines, and more specifically, to a high-efficiency carton sealing machine for laundry detergent packaging. Background Technology

[0002] In the large-scale production of laundry detergent, the sealing process after packaging is a crucial step in ensuring the safety of product transportation and storage. Traditional laundry detergent packaging sealing machines mostly employ simple mechanical structures and basic control methods, resulting in significant drawbacks such as poor stability during actual operation. On the one hand, laundry detergent production lines operate at high speeds and with large outputs. Traditional sealing machines, lacking precise positioning systems, are prone to carton misalignment during transport, leading to inaccurate sealing positions, weak tape adhesion, and severely impacting sealing quality. On the other hand, the mechanical components of the sealing machine are prone to loosening and wear under prolonged high-speed operation. The lack of effective shock absorption and cushioning designs further exacerbates equipment instability, causing frequent malfunctions and downtime, reducing production efficiency, increasing maintenance costs, and manpower input. Furthermore, existing sealing machines have poor adaptability to different carton sizes, and the adjustment process is complex, making it difficult to meet diverse production needs. Therefore, developing a highly efficient sealing machine for laundry detergent packaging that is stable, precise in positioning, and highly adaptable has become an urgent problem to be solved to improve the production efficiency and quality of laundry detergent packaging. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide a high-efficiency carton sealing machine for laundry detergent packaging, which solves the technical problem that in the prior art, laundry detergent production lines are fast and have large output, and traditional carton sealing machines lack a precise positioning system, which makes the cartons prone to shifting during transportation, resulting in inaccurate sealing positions, weak tape adhesion, and seriously affecting the sealing quality.

[0004] According to one aspect, at least one embodiment of this disclosure provides a high-efficiency carton sealing machine for laundry detergent packaging, comprising:

[0005] The machine includes a frame, a gantry frame, and a pair of side conveyor belts. The gantry frame is fixed to the top of the frame, and the side conveyor belts are respectively connected to both sides of the top of the frame via linear drives.

[0006] The assembly includes several rolling rods, a pair of main board components, and a carton sealing assembly. The rolling rods are rotatably connected inside the frame. The main board components are mounted on the gantry frame and the frame. The carton sealing assembly is mounted on the main board components.

[0007] A height adjustment assembly is disposed between the main board component and the gantry frame;

[0008] The sealing assembly includes tape mounting brackets, all of which are fixed to the surface of the main board component. Each main board component surface is provided with a pair of fixing plates, and a swing rod is provided between the fixing plates. The swing rod is driven by electricity to swing, and a tape-applying wheel is provided at one end of the swing rod.

[0009] As a further technical solution, the side surface of the tape mounting bracket is provided with a support rod, and the surface of the main board component is provided with a tape threading opening. The side end face of the main board component is rotatably connected to a splicing plate through a pin, and the connection between the splicing plate and the pin of the main board component is driven to rotate by a torsion spring.

[0010] As a further technical solution, each of the splicing panels is provided with an electric push rod, the output end of which is provided with a cutting blade. A pair of connecting frames are provided on the main board component at the top, and a carton pressing frame is provided between the connecting frames.

[0011] As a further technical solution, the bottom ends of the carton pressing frame are provided with pressing plates, the pressing plates are fixed at an inclined angle, the top of the pressing plates are provided with connecting rods, one end of the connecting rods is provided with pressing blocks, and the connecting rods are driven to swing by electricity.

[0012] As a further technical solution, an anti-detachment pressure plate is provided on the swing rod located at the bottom, and the upper end of the anti-detachment pressure plate is attached to the surface of the belt pulley.

[0013] As a further technical solution, the adjustment assembly includes a pair of vertical slide rods, each of which is fixed to the surface of the main board component located at the top, and a screw is also fixedly connected to the surface of the main board component.

[0014] As a further technical solution, the upper end of the screw is movably fitted inside the gantry frame, and an internal thread drive block is rotatably fitted to the top of the gantry frame. The internal thread drive block is connected to the screw through a threaded connection.

[0015] As a further technical solution, the transmission belt located inside the end where the side conveyor belt enters has a certain tilt angle, and an infrared sensor is provided on one side of the gantry frame.

[0016] The beneficial effects of the embodiments disclosed herein are as follows:

[0017] In this disclosure, the sealing assembly guides the tape through the tape insertion opening via a tape mounting bracket and a support rod. An electrically driven swing rod drives the tape application wheel to reciprocate, tightly adhering the tape to the carton seams and ensuring a secure fit. The carton pressing frame's edge plate and pressing block first press and compact the carton's top cover, while an anti-detachment pressing plate further secures the bottom tape. This effectively prevents inaccurate sealing positions caused by misalignment during the sealing process, solving the technical problem of poor sealing quality caused by inaccurate positioning in traditional carton sealing machines. This achieves efficient and precise sealing of laundry detergent cartons, improving sealing quality and production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0020] Figure 2 This is an isometric drawing of the present disclosure;

[0021] Figure 3 This is an isometric sectional view of the present disclosure;

[0022] In the diagram: 1. Frame; 2. Gantry frame; 3. Side conveyor belt; 4. Rolling rod; 5. Main board component; 6. Sealing assembly; 6-1. Tape mounting bracket; 6-2. Fixing plate; 6-3. Swing rod; 6-4. Tape roller; 6-5. Belt support rod; 6-6. Belt threading opening; 6-7. Splicing plate; 6-8. Electric push rod; 6-9. Cutting blade; 6-10. Connecting frame; 6-11. Carton pressing frame; 6-12. Edge pressing plate; 6-13. Connecting rod; 6-14. Pressing block; 6-15. Anti-detachment pressing plate; 7. Adjusting assembly; 7-1. Vertical slide bar; 7-2. Screw; 7-3. Internal thread drive block. Detailed Implementation

[0023] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0024] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0025] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0026] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0028] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] like Figures 1-3 As shown, it illustrates a high-efficiency carton sealing machine for laundry detergent packaging according to an embodiment of the present disclosure, comprising:

[0030] The machine includes a frame 1, a gantry frame 2, and a pair of side conveyor belts 3. The gantry frame 2 is fixed to the top of the machine frame 1, and the side conveyor belts 3 are respectively connected to the top two sides of the machine frame 1 via linear drive.

[0031] The assembly includes several rolling rods 4, a pair of main board components 5, and a carton sealing assembly 6. The rolling rods 4 are all rotatably connected inside the frame 1. The main board components 5 are disposed on the gantry frame 2 and the frame 1. The carton sealing assembly 6 is disposed on the main board components 5.

[0032] A height adjustment component 7 is disposed between the main board component 5 and the gantry frame 2;

[0033] The sealing assembly 6 includes a tape mounting bracket 6-1, which is fixed to the surface of the main board component 5. A pair of fixing plates 6-2 are provided on the surface of each main board component 5. A swing rod 6-3 is provided between the fixing plates 6-2. The swing rod 6-3 is electrically driven to swing. One end of the swing rod 6-3 is provided with a tape-applying wheel 6-4. A tape-supporting rod 6-5 is provided on the side surface of the tape mounting bracket 6-1. A tape-passing opening 6-6 is provided on the surface of each main board component 5. A splicing plate 6-7 is rotatably connected to the side end face of the main board component 5 via a pin. The connection between the splicing plate 6-7 and the pin of the main board component 5 is driven to rotate by a torsion spring. An electric pusher is provided on the surface of the splicing plate 6-7. The electric push rod 6-8 has a cutting blade 6-9 at its output end. A pair of connecting frames 6-10 are provided on the main board 5 at the top. A carton pressing frame 6-11 is provided between the connecting frames 6-10. Both ends of the bottom of the carton pressing frame 6-11 are provided with pressing plates 6-12. The pressing plates 6-12 are fixed at an inclined angle. A connecting rod 6-13 is provided at the top of the pressing plates 6-12. A pressing block 6-14 is provided at one end of the connecting rod 6-13. The connecting rod 6-13 is driven by electricity to swing. An anti-detachment pressing plate 6-15 is provided on the swing rod 6-3 at the bottom. The upper end of the anti-detachment pressing plate 6-15 is attached to the surface of the tape roller 6-4.

[0034] In some examples, to achieve simultaneous top and bottom sealing, a sealing assembly 6 is designed. This assembly includes a tape mounting bracket 6-1 fixed to the surface of the main board 5 for mounting the tape roll. A tape support rod 6-5 extends from the side surface of the mounting bracket, guiding the tape through the tape entry point 6-6 on the surface of the main board 5, forming a path for tape delivery. A swing rod 6-3 between the fixed plates 6-2 is electrically driven to reciprocate, and its end-mounted tape applicator 6-4 tightly adheres the tape to the carton seam during the swing.

[0035] The connecting bracket 6-10 on the top main board component 5 supports the carton pressing frame 6-11. The inclined pressing plate 6-12 at the bottom of the pressing frame can first press the top cover of the carton. The connecting rod 6-13 drives the pressing block 6-14 to swing via electric drive, further pressing the top cover of the carton so that the tape can be applied. The swing rod 6-3 on the bottom main board component 5 is equipped with an anti-detachment pressing plate 6-15, the upper end of which is attached to the surface of the tape roller 6-4, to help fix the tape when sealing the bottom of the carton and prevent the tape from shifting. The splicing plate 6-7 is rotatably connected to the main board 5 via a pin. A torsion spring provides the reset force. If the cutting blade 6-9 is too close to the tape applicator 6-4, the tape applicator 6-4 will push the cutting blade 6-9 when it swings. The cutting blade 6-9 can swing and avoid this by cooperating with the pin connection of the splicing plate 6-7, and reset by the torsion spring. When the electric push rod 6-8 pushes the cutting blade 6-9 forward, the splicing plate 6-7 rotates to cooperate with the blade to complete the tape cutting. The whole process realizes the automated operation of top and bottom sealing.

[0036] like Figures 1-3 As shown in the figure, the adjustment component 7 in this embodiment includes a pair of vertical slide rods 7-1, each of which is fixed to the surface of the main board component 5 located at the top. The surface of the main board component 5 is also fixedly connected to a screw rod 7-2. The upper end of the screw rod 7-2 is movably fitted inside the portal frame 2. The top of the portal frame 2 is rotatably fitted with an internal thread drive block 7-3, which is connected to the screw rod 7-2 by a threaded engagement.

[0037] In some examples, a height adjustment component 7 is designed to adapt to different carton heights. This component includes a pair of vertical slide rods 7-1 fixed to the surface of the top main panel 5, providing guidance for the vertical movement of the main panel 5 and ensuring stability during movement. The upper end of the screw 7-2 is movably fitted inside the gantry frame 2, and the lower end is fixedly connected to the main panel 5. The internal thread drive block 7-3 at the top of the gantry frame 2 engages with the screw 7-2 via threads. When the internal thread drive block 7-3 is rotated, the thread drive causes the screw 7-2 to move axially, thereby causing the top main panel 5 and the connected sealing assembly 6 to move vertically. A nut can be screwed into the lower end of the vertical screw 7-2 to provide a locking effect. The engagement of the vertical slide rods 7-1 and the screw 7-2 keeps the main panel 5 horizontal during lifting and lowering. By adjusting the height, it can adapt to different carton sizes, ensuring precise alignment of the sealing assembly 6's tape rollers 6-4 with the carton seams, improving the applicability and sealing accuracy of the sealing machine.

[0038] For example, such as Figure 1 As shown, the transmission belt located inside the end where the side conveyor belt 3 enters has a certain tilt angle, and an infrared sensor is provided on one side inside the gantry frame 2.

[0039] In some examples, the side conveyor belts 3 are linearly driven to both sides of the top of the frame 1. The inclined angle design allows the cartons to naturally move towards the center of the frame 1 during transport. Combined with the rotating rollers 4 inside the frame 1, this reduces frictional resistance between the cartons and the conveyor belt, ensuring smooth transport of the cartons to below the sealing assembly 6. An infrared sensor installed on one side of the gantry 2 is electrically connected to the drive system of the side conveyor belts 3. When the cartons enter the detection range of the gantry 2 along with the inclined conveyor belt, the beam emitted by the infrared sensor is blocked by the cartons, and the sensor immediately sends a signal to the control system. Upon receiving the signal, the control system, on the one hand, controls the linear drive device of the side conveyor belts 3 to adjust the conveying speed, ensuring the cartons are precisely positioned below the sealing assembly 6; on the other hand, it triggers the activation of components such as the tape mounting bracket 6-1 and the swing rod 6-3 of the sealing assembly 6, achieving synchronous sealing of the top and bottom of the cartons.

[0040] In practical use: Frame 1 is fixed to the production line, gantry frame 2 is installed on top of frame 1, and side conveyor belts 3 on both sides are connected to the top of frame 1 via linear drive. Roller rods 4 are rotatably connected inside frame 1. Main components 5 are installed on gantry frame 2 and frame 1 respectively, carton sealing assembly 6 is installed on main component 5, and height adjustment assembly 7 is installed between main component 5 and gantry frame 2. Adhesive tape rolls are installed on tape mounting bracket 6-1, and the tape is guided through the tape threading opening 6-6 of main component 5 by support rod 6-5. When the detergent carton is conveyed into gantry frame 2 via side conveyor belt 3, the infrared sensor detects the carton, and the side conveyor belt 3 adjusts its conveying speed via linear drive to ensure precise carton positioning. The top main component 5's carton pressing frame 6-11 is suspended by the connecting frame 6-10. The pressing plate 6-12 tilts and presses the carton cover. The connecting rod 6-13 drives the pressing block 6-14 to swing and press the cover firmly. At the same time, the bottom main component 5's anti-detachment pressing plate 6-15 helps to fix the tape. The electrically driven swing rod 6-3 swings, and the tape applicator 6-4 applies the tape to the carton seam. The splicing plate 6-7 returns to its original position under the action of the torsion spring. The electric push rod 6-8 pushes the cutting blade 6-9 to move vertically and cut the tape. At the same time, the tape applicator 6-4 completes the tape application on the other side during the resetting process, completing the carton sealing. If the carton specifications are different, rotate the internal thread drive block 7-3 at the top of the gantry frame 2. Through the threaded transmission, the screw 7-2 drives the top main component 5 to move up and down along the vertical slide bar 7-1, adjusting the height of the sealing assembly 6 and the spacing of the side conveyor belt 3.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A high-efficiency carton sealing machine for laundry detergent packaging, characterized in that, include: The frame (1), the gantry frame (2) and a pair of side conveyor belts (3) are provided. The gantry frame (2) is fixed to the top of the frame (1), and the side conveyor belts (3) are connected to the top two sides of the frame (1) respectively by linear drive. A plurality of rolling rods (4), a pair of main board components (5) and a carton sealing assembly (6) are provided. The rolling rods (4) are all rotatably connected inside the frame (1). The main board components (5) are provided on the gantry frame (2) and the frame (1). The carton sealing assembly (6) is provided on the main board components (5). A height adjustment component (7) is disposed between the main board component (5) and the gantry frame (2); The sealing assembly (6) includes a tape mounting bracket (6-1), which is fixed to the surface of the main board component (5). A pair of fixing plates (6-2) are provided on the surface of the main board component (5). A swing rod (6-3) is provided between the fixing plates (6-2). The swing rod (6-3) is driven by electricity to swing. A tape-applying wheel (6-4) is provided at one end of the swing rod (6-3).

2. The high-efficiency carton sealing machine for laundry detergent packaging according to claim 1, characterized in that, The tape mounting bracket (6-1) has a support rod (6-5) on its side surface. The main board component (5) has a tape insertion port (6-6) on its surface. The side end face of the main board component (5) is rotatably connected to a splicing plate (6-7) via a pin. The splicing plate (6-7) and the pin connection of the main board component (5) are driven to rotate by a torsion spring.

3. The high-efficiency carton sealing machine for laundry detergent packaging according to claim 2, characterized in that, The splicing plate (6-7) is provided with electric push rods (6-8) on its surface. The output end of the electric push rod (6-8) is provided with a cutting blade (6-9). The main board component (5) at the top is provided with a pair of connecting frames (6-10). A carton pressing frame (6-11) is provided between the connecting frames (6-10).

4. The high-efficiency carton sealing machine for laundry detergent packaging according to claim 3, characterized in that, The carton pressing frame (6-11) is provided with pressing plates (6-12) at both ends of the bottom. The pressing plates (6-12) are fixed at an inclined angle. The pressing plates (6-12) are provided with connecting rods (6-13) at the top. One end of the connecting rods (6-13) is provided with pressing blocks (6-14).

5. A high-efficiency carton sealing machine for laundry detergent packaging according to claim 4, characterized in that, The connecting rod (6-13) is driven to swing by electricity. An anti-detachment pressure plate (6-15) is provided on the swing rod (6-3) at the bottom. The upper end of the anti-detachment pressure plate (6-15) is attached to the surface of the belt pulley (6-4).

6. The high-efficiency carton sealing machine for laundry detergent packaging according to claim 1, characterized in that, The adjustment assembly (7) includes a pair of vertical slide rods (7-1), each of which is fixed to the surface of the main board component (5) located at the top. A screw (7-2) is also fixedly connected to the surface of the main board component (5).

7. A high-efficiency carton sealing machine for laundry detergent packaging according to claim 6, characterized in that, The upper end of the screw (7-2) is movably fitted inside the portal frame (2), and the top of the portal frame (2) is rotatably fitted with an internal thread drive block (7-3), which is connected to the screw (7-2) by a threaded connection.

8. The high-efficiency carton sealing machine for laundry detergent packaging according to claim 1, characterized in that, The transmission belt located inside the end of the side conveyor belt (3) has a certain tilt angle, and an infrared sensor is provided on one side inside the gantry frame (2).