Carton hot melt adhesive sealing machine

Abstract

The utility model relates to the field of mechanical equipment, and provides a carton hot melt adhesive sealing machine which comprises a prosthesis, an adhesive spraying unit and a position sensor, and a frame body comprises two lifting frames which are symmetrically arranged and an adjusting sliding rail which is used for adjusting the distance between the two lifting frames. A front-section conveying belt, a folding piece for folding the side edge of a paper box and a rear-section conveying belt are sequentially arranged on the lifting frame along the assembly line; the glue spraying unit is arranged on the frame body or the adjusting sliding rail, and the glue spraying unit is located between the front-section conveying belt and the turnover piece; and the position sensor is arranged on the frame body and is electrically connected with the glue spraying unit. Through the design of the glue spraying unit and the folding piece, the side edges of the paper box can be automatically sprayed with glue on the paper box, folding and bonding are carried out, it is ensured that the paper box forming precision is high, operation is easy and convenient, and the production efficiency is greatly improved. Meanwhile, manual intervention is reduced, the labor cost is reduced, the production process is optimized, and the overall quality and market competitiveness of the paper box are improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment, specifically to a hot melt adhesive sealing machine for paper boxes. Background Technology

[0002] A cardboard box is a three-dimensional shape, composed of multiple facets that are moved, stacked, folded, and enclosed. In three-dimensional composition, facets divide space; cutting, rotating, and folding different facets creates different emotional expressions. When designing the display surfaces of a cardboard box, attention should be paid to the connections between the display surface, sides, top, and bottom, as well as the placement of packaging information elements.

[0003] Paper box packaging largely uses its exquisite design and decoration to promote and beautify products, thereby enhancing their competitiveness. Since the shape and structural design of paper boxes are often determined by the shape and characteristics of the packaged goods, there are many styles and types, including rectangular, square, polygonal, irregularly shaped, and cylindrical boxes.

[0004] Therefore, in situations with high demand for cardboard boxes, manually folding and gluing them is not only inefficient but also requires significant manpower and resources, leading to high production costs and increased operating costs, thus hindering market competitiveness. Furthermore, the precision and quality of hand-folded cardboard boxes are difficult to guarantee, resulting in resource waste and a lower overall product image. Utility Model Content

[0005] The purpose of this invention is to provide a hot melt adhesive sealing machine for paper boxes, which aims to improve the problems of high production costs and low efficiency in existing paper box production.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a paper box hot melt adhesive sealing machine, comprising:

[0007] The frame includes two symmetrically arranged lifting frames and an adjusting slide rail for adjusting the distance between the two lifting frames. The lifting frames are sequentially arranged along the production line as follows: a front conveyor belt, a folding piece for folding the sides of the paper box, and a rear conveyor belt.

[0008] A glue spraying unit is installed on the frame or the adjusting slide rail, and the glue spraying unit is located between the front conveyor belt and the folding component;

[0009] A position sensor is mounted on the frame and is electrically connected to the glue spraying unit.

[0010] Preferably, the adjusting slide rail includes a plurality of sliding rods arranged parallel to the frame and two support plates arranged parallel to the sliding rods. The support plates are provided with sliders that slide in cooperation with the sliding rods. The frame is provided with a first power unit that drives the sliders to move. The lifting frame is provided on the support plates.

[0011] Preferably, the lifting frame includes multiple lifting motors spaced apart and multiple guide support rods.

[0012] Preferably, the front conveyor belt and the rear conveyor belt are two symmetrically arranged lateral conveyor belts, and a limiting rod is provided on the top of the frame above the front conveyor belt.

[0013] Preferably, a sprocket and chain structure and a drive unit for rotating the sprocket and chain structure are provided between the two lateral conveyor belts, and multiple actuating plates for pushing the paper box are provided at intervals on the sprocket and chain structure.

[0014] Preferably, the lateral conveyor belt is provided with a second power unit located at the bottom of the frame, and a transmission rod at one end connected to its own main drive wheel. A linkage is provided between the transmission rods of the two lateral conveyor belts, and the output end of the second power unit is located on the other end of the linkage or the transmission rod.

[0015] Preferably, the end of the folding component facing the front conveyor belt is provided with an outwardly folded arc-shaped surface of the folding box.

[0016] Preferably, it also includes a controller, wherein the glue spraying unit, the front conveyor belt and the rear conveyor belt are electrically connected to the output end of the controller, and the position sensor is electrically connected to the input end of the controller.

[0017] Preferably, it also includes a feeding conveyor belt, the end of which is connected to or aligned with the starting end of the preceding conveyor belt, and the feeding conveyor belt is electrically connected to the output end of the controller;

[0018] The frame is equipped with a monitoring sensor that monitors the feed conveyor belt, and the monitoring sensor is electrically connected to the input terminal of the controller.

[0019] Preferably, the frame body is provided with a semi-enclosed frame structure, and the top surface of the frame structure is provided with a viewing window and a control panel;

[0020] The control panel is electrically connected to the controller.

[0021] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0022] 1. The frame structure of this utility model can be adjusted in width and height to adapt to the production needs of paper boxes of different sizes, thereby improving the versatility and flexibility of the equipment.

[0023] 2. Through the design of the glue spraying unit and folding components, glue can be automatically sprayed onto the sides of the cardboard box and then folded and glued, ensuring high precision in box forming and easy operation, significantly improving production efficiency. At the same time, it reduces manual intervention, lowers labor costs, optimizes the production process, and enhances the overall quality and market competitiveness of the cardboard boxes. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the hot melt adhesive sealing machine for paper boxes according to this utility model;

[0025] Figure 2 This is a cross-sectional view of the paper box hot melt adhesive sealing machine of this utility model from a first perspective.

[0026] Figure 3 This is a cross-sectional view of the paper box hot melt adhesive sealing machine of the present invention from a second perspective.

[0027] Figure 4 This is a schematic diagram of the internal structure of the hot melt adhesive sealing machine for paper boxes according to this utility model.

[0028] Figure 5 This is a schematic diagram of the adjusting slide rail of the hot melt adhesive sealing machine for paper boxes according to this utility model;

[0029] Figure 6 This is a partial schematic diagram of the front or rear conveyor belt of the hot melt adhesive sealing machine for paper boxes according to this utility model;

[0030] Figure 7 This is a partial view of the hot melt adhesive sealing machine for paper boxes according to this utility model, located at the position of the sprocket and chain structure;

[0031] Figure 8 This is a structural diagram of the folding part of the hot melt adhesive sealing machine for paper boxes according to this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 10. Frame; 101. Lifting frame; 102. Adjusting slide rail; 103. Limiting rod; 104. Sprocket and chain structure; 105. Drive unit; 106. Monitoring sensor; 107. Frame structure; 108. First power unit;

[0034] 1011. Front conveyor belt; 1012. Folding component; 1013. Rear conveyor belt; 1014. Lifting motor; 1015. Guide support rod; 1016. Second power unit; 1017. Transmission rod; 1018. Linkage component;

[0035] 10121. Curved surface;

[0036] 1021. Sliding rod; 1022. Support plate; 1023. Slider;

[0037] 1041. Toggle plate;

[0038] 1071. Viewport; 1072. Control Panel;

[0039] 20. Glue spraying unit; 30. Position sensor; 40. Feed conveyor belt. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0041] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0043] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8As shown, this embodiment provides a hot melt adhesive sealing machine for cardboard boxes, including a dummy, an adhesive spraying unit 20, and a position sensor 30. The frame 10 includes two symmetrically arranged lifting frames 101 and an adjusting slide rail 102 for adjusting the distance between the two lifting frames 101. A front conveyor belt 1011, a folding component 1012 for folding the sides of the cardboard box, and a rear conveyor belt 1013 are sequentially arranged along the production line on the lifting frames 101. The adhesive spraying unit 20 is mounted on the frame 10 or the adjusting slide rail 102, and is located between the front conveyor belt and the folding component 1012. The position sensor 30 is mounted on the frame 10 and is electrically connected to the adhesive spraying unit 20. The adhesive spraying unit 20 can be an adhesive spraying machine, such as a JX-300 or JX160521 adhesive spraying machine, to ensure accurate adhesive application during the folding process of the cardboard box.

[0045] Specifically, the position sensor 30 can be selected from various models, such as an infrared sensor or a photoelectric sensor. The infrared sensor model is IR-2025, and the photoelectric sensor model is PS-3000, both of which can accurately detect the position of the cardboard box, ensuring accurate timing of glue application. The sensor signal is transmitted to the control system, triggering the glue application unit 20 to operate. Conveyed by the front conveyor belt, the sides of the cardboard box are precisely folded and glued to the glue application position under the action of the folding component 1012, achieving an automated folding and gluing process. Subsequently, the glued cardboard box is smoothly output via the rear conveyor belt 1013, completing the overall automated processing of the cardboard box, reducing manual intervention, ensuring consistent cardboard box forming quality, improving production efficiency, reducing costs, and meeting the high-efficiency and precise needs of the modern packaging industry.

[0046] Meanwhile, the design fully considers the versatility of the equipment, compatible with various cardboard box specifications. The distance between the two lifting frames 101 can be flexibly adjusted by adjusting the slide rail 102, enabling adaptive adjustment for cardboard boxes of different lengths and sizes. At the same time, the lifting adjustment of the lifting frame 101 can adaptively adjust the thickness of the cardboard box to meet the folding requirements of different sized cardboard boxes, thus expanding the applicability of the equipment.

[0047] like Figure 4 and Figure 5 As shown, in this embodiment, the adjusting slide rail 102 includes a plurality of sliding rods 1021 arranged in parallel on the frame 10 and two support plates 1022 arranged in parallel on the sliding rods 1021. The support plate 1022 is provided with a slider 1023 that slides with the sliding rods 1021. The frame 10 is provided with a first power unit 108 that drives the slider 1023 to move. The lifting frame 101 is provided on the support plate 1022.

[0048] Specifically, the sliding rod 1021 and the support plate 1022 slide together via a slider 1023, which can be driven by a cylinder, hydraulic cylinder, or linear motor. Specifically, the first power unit 108 can be a motor, which engages with the slider 1023 via a threaded rod. The first power unit 108 drives the threaded rod to rotate, thereby moving the slider 1023. This allows for precise adjustment of the distance between the two support plates 1022, causing the lifting frame 101 mounted on the support plates 1022 to move accordingly. Synchronous adjustment of the distance between the two lifting frames 101 allows for flexible adaptation to the folding requirements of different cardboard box sizes.

[0049] like Figure 8 As shown, in this embodiment, the lifting frame 101 includes multiple spaced-apart lifting motors 1014 and multiple guide support rods 1015. The lifting motors 1014 can be stepper motors or servo motors, which drive the threaded rods to rotate, thereby achieving precise lifting and lowering of the lifting frame 101 and ensuring the accuracy of adjustment. The guide support rods 1015 ensure the stability of the lifting process, prevent deviation, and improve the support for the front conveyor belt 1011 or the rear conveyor belt 1013, thereby improving the overall structural stability of the equipment.

[0050] like Figure 6 As shown, in this embodiment, the front conveyor belt 1011 and the rear conveyor belt 1013 are two symmetrically arranged lateral conveyor belts, and a limiting rod 103 located above the front conveyor belt 1011 is provided on the top of the frame 10.

[0051] Specifically, the side conveyor belt design clamps and transports the box, positioning the folded side panels. Simultaneously, a limiting rod 103 abuts the top surface of the box, creating a three-dimensional positioning that ensures the box remains stable and doesn't shift during transport. Then, the folding component 1012 folds the box's lid, closing the box's ends and ensuring the overall structural integrity and aesthetics, while also improving the precision and efficiency of the folding and bonding process.

[0052] like Figure 3 and Figure 7 As shown, in this embodiment, a sprocket and chain structure 104 and a drive unit 105 for rotating the sprocket and chain structure 104 are provided between the two lateral conveyor belts. A plurality of actuating plates 1041 for pushing the paper box are provided at intervals on the sprocket and chain structure 104.

[0053] Specifically, two lateral conveyor belts synchronously drive the two side conveyor belts, ensuring smooth and synchronized transport of the cardboard box, further optimizing folding accuracy and efficiency. Furthermore, the drive unit 105 can be a servo motor or a frequency converter motor to drive the sprocket and chain structure 104 to rotate, thus synchronously driving the actuating plate 1041 to rotate, thereby actuating the cardboard box. The lateral conveyor belts can then clamp, fix, and transport the cardboard box. Multiple actuating plates 1041 can be evenly spaced, enabling active driving and intermittent transport of the cardboard box to accommodate the intermittent glue spraying of the glue spraying unit 20, achieving a more efficient folding effect.

[0054] like Figure 2 and Figure 6 As shown, in this embodiment, the lateral conveyor belt is provided with a second power unit 1016 located at the bottom of the frame 10, and a transmission rod 1017 with one end connected to its own main drive wheel. A linkage 1018 is provided between the transmission rods 1017 of the two lateral conveyor belts. The output end of the second power unit 1016 is provided on the other end of the linkage 1018 or the transmission rod 1017.

[0055] Specifically, the second power unit 1016 can be a motor, while the linkage 1018 can be a belt or chain. Sprockets or pulleys are installed at the ends of the two transmission rods 1017. The motor drives the two rotating rods synchronously, ensuring the synchronized operation of the conveyor belts on both sides and improving the stability and precision of the carton folding. At the same time, the design of the linkage 1018 simplifies the transmission structure, reduces maintenance costs, and further improves the reliability and service life of the equipment.

[0056] like Figure 8 As shown, in this embodiment, the end of the folding component 1012 facing the front conveyor belt is provided with an outward-folding arc-shaped surface 10121 for folding the cardboard box. When the cover of the cardboard box touches the arc-shaped surface 10121, it will automatically fold under the guidance of the arc-shaped surface 10121, ensuring that the cover is tightly connected to the box body and glued to the cardboard box, thus completing the purpose of automatic folding.

[0057] This embodiment also includes a controller (not shown). The glue spraying unit 20, the front conveyor belt 1011, and the rear conveyor belt 1013 are electrically connected to the output of the controller, and the position sensor 30 is electrically connected to the input of the controller. The controller can be a PLC or a microcontroller, such as a Siemens S7-1200 PLC or a 51 series microcontroller, or it can be used with computer or other control equipment. The controller automates the folding and glue spraying operations, ensuring the quality of the cardboard box forming.

[0058] like Figure 1As shown, this embodiment also includes a feeding conveyor belt 40, the end of which is connected to or aligned with the starting end of the preceding conveyor belt, and the feeding conveyor belt 40 is electrically connected to the output end of the controller; a monitoring sensor 106 is installed on the frame 10 to monitor the feeding conveyor belt, and the monitoring sensor 106 is electrically connected to the input end of the controller. The monitoring sensor 106 can be a photoelectric sensor or a proximity sensor. The photoelectric sensor can be an E3Z series sensor, and the proximity sensor can be an NPN type sensor, which monitors the position of the cardboard box in real time to ensure accurate feeding.

[0059] Specifically, the feeding conveyor belt 40 can extend the conveying length to ensure sufficient material supply, meet different working efficiencies of the equipment, and improve the continuity of the overall production process. Simultaneously, the detection sensor can determine whether there are still cardboard boxes being fed. If no cardboard boxes enter within a specified time, the controller can shut down the cardboard box hot melt adhesive sealing machine; otherwise, it can operate normally.

[0060] like Figure 1 As shown, in this embodiment, a semi-enclosed frame structure 107 is provided outside the frame 10. A viewing window 1071 and a control panel 1072 are provided on the top surface of the frame structure 107; the control panel 1072 is electrically connected to the controller. The semi-enclosed frame structure 107 acts as an enclosure, protecting and isolating the internal operating structure of the cardboard box hot melt adhesive sealing machine, thereby effectively preventing dust and impurities from entering, ensuring the cleanliness and normal operation of internal components, extending the equipment's service life, and improving overall work efficiency. At the same time, the frame design facilitates maintenance and repair, further enhancing the safety and stability of the equipment.

[0061] Furthermore, for ease of operation and observation, a transparent observation window is provided on the frame, facilitating real-time monitoring of the equipment's operating status, timely detection and handling of abnormalities, and ensuring smooth production. The settings on the control panel 1072 allow operators to adjust parameters according to actual needs, achieving precise control and improving operational convenience and production efficiency. The overall design balances practicality and user-friendliness, ensuring efficient and stable equipment operation.

[0062] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A carton hot melt glue sealer, characterized in that, include: The frame includes two symmetrically arranged lifting frames and an adjusting slide rail for adjusting the distance between the two lifting frames. The lifting frames are sequentially arranged along the production line as follows: a front conveyor belt, a folding piece for folding the sides of the paper box, and a rear conveyor belt. A glue spraying unit is installed on the frame or the adjusting slide rail, and the glue spraying unit is located between the front conveyor belt and the folding component; A position sensor is mounted on the frame and is electrically connected to the glue spraying unit.

2. The carton hot melt glue sealer of claim 1, wherein: The adjusting slide rail includes multiple sliding rods arranged parallel to the frame and two support plates arranged parallel to the sliding rods. The support plates are provided with sliders that slide with the sliding rods. The frame is provided with a first power unit that drives the sliders to move. The lifting frame is mounted on the support plate.

3. The carton hot melt glue sealer according to claim 1 or 2, characterized in that: The lifting frame includes multiple lifting motors spaced apart and multiple guide support rods.

4. The paper box hot melt adhesive sealing machine according to claim 1, characterized in that: The front conveyor belt and the rear conveyor belt are two symmetrically arranged side conveyor belts, and a limiting rod is provided on the top of the frame above the front conveyor belt.

5. The carton hot melt glue sealer of claim 4, wherein: A sprocket and chain structure and a drive unit for rotating the sprocket and chain structure are provided between the two lateral conveyor belts. Multiple actuating plates for pushing the paper box are provided at intervals on the sprocket and chain structure.

6. The carton hot melt glue sealer according to claim 4 or 5, characterized in that: The lateral conveyor belt is equipped with a second power unit located at the bottom of the frame, and a transmission rod that is connected to its own main drive wheel at one end. A linkage is provided between the transmission rods of the two lateral conveyor belts, and the output end of the second power unit is located on the other end of the linkage or the transmission rod.

7. The carton hot melt glue sealer of claim 1, wherein: The end of the folding component facing the front conveyor belt is provided with an outwardly folded arc-shaped surface for the folding cardboard box.

8. The paper box hot melt adhesive sealing machine according to claim 1, characterized in that: It also includes a controller, the glue spraying unit, the front conveyor belt and the rear conveyor belt are electrically connected to the output end of the controller, and the position sensor is electrically connected to the input end of the controller.

9. The carton hot melt glue sealer of claim 8, wherein: It also includes a feeding conveyor belt, the end of which is connected to or aligned with the starting end of the preceding conveyor belt, and the feeding conveyor belt is electrically connected to the output end of the controller; The frame is equipped with a monitoring sensor that monitors the feed conveyor belt, and the monitoring sensor is electrically connected to the input terminal of the controller.

10. The carton hot melt glue sealer of claim 8, wherein: The frame body is provided with a semi-enclosed frame structure, and the top surface of the frame structure is provided with a viewing window and a control panel; The control panel is electrically connected to the controller.

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