A single-sided labeling machine for express delivery

Abstract

This utility model discloses a single-sided labeling machine for express delivery, including a frame, and an adsorption conveying mechanism, a labeling component, and a pressing component mounted on the frame. The adsorption conveying mechanism includes a conveyor belt assembly and an air duct adsorption assembly. Multiple adsorption holes are formed on the conveyor surface of the conveyor belt assembly. The air duct adsorption assembly is located below the conveyor surface of the conveyor belt assembly and is used to draw air inward. This utility model uses a lifting plate at the output end of the label output mechanism, causing the label tape to form an angled structure as it passes the end of the lifting plate, automatically detaching the label edge from the label tape and reducing label retention. Simultaneously, by setting the air duct adsorption assembly below the conveyor belt surface and creating adsorption holes on the conveyor belt, each incoming document bag can be adsorbed by the conveyor belt, preventing the processed documents from being retained due to label adhesion.

Description

Technical Field

[0001] This utility model belongs to the field of labeling machine technology, specifically relating to a single-sided labeling machine for express delivery labels. Background Technology

[0002] A labeling machine is a common packaging device used to affix self-adhesive labels to the surfaces of packaging, products, and other items awaiting labeling. Common labeling methods used by labeling machines include suction labeling, blow labeling, and wiping labeling.

[0003] Labeling machines using the swipe-and-apply method typically include a wound label output mechanism and a conveyor belt. The label output mechanism is used to wind and transport the label tape. The conveyor belt transports the document bags to be labeled. When the label passes the output end of the label output mechanism, the leading edge of the label contacts and adheres to the document bag, and the product then carries the label away, completing the labeling process.

[0004] However, because the force on the document bag and the label is in opposite directions, when the document bag passes the location of the label, the label may stick and cause the document bag to remain in place, thus blocking the subsequent input document bags and making processing difficult. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a single-sided labeling machine for express delivery, which solves the technical problem that existing labeling machines are prone to labels sticking to document bags, causing the document bags to remain in place.

[0006] To achieve the above objectives, the specific technical solution of this utility model is as follows: A single-sided labeling machine for express delivery includes a frame, and an adsorption conveying mechanism, a labeling component, and a pressing component disposed on the frame.

[0007] The adsorption and conveying mechanism includes a conveyor belt assembly and an air duct adsorption assembly. The conveyor belt assembly has multiple adsorption holes on its conveying surface. The air duct adsorption assembly is located below the conveying surface of the conveyor belt assembly and is used to draw air inwards.

[0008] The labeling assembly includes a lifting plate and a label output mechanism. The lifting plate is located at the output end of the label output mechanism. The label tape in the label output mechanism forms an angled structure at the lifting plate. The pressing assembly is installed on the outer end of the lifting plate, and its bottom is pressed tightly against the conveyor surface of the conveyor belt assembly.

[0009] Furthermore, the label output mechanism includes a support frame, and a plate bracket, storage rollers, take-up rollers, a take-up drive motor, and multiple winding rollers mounted on the support frame. The plate bracket is obliquely fixed to the bottom of the support frame and extends outward to form an obliquely suspended fixed end. A lifting plate is fixed to the fixed end. The storage rollers, take-up rollers, and each winding roller are arranged sequentially on the support frame and are all rotatably connected to it. The take-up drive motor is mounted on the back of the support frame, and a transmission gear set is provided on the power output shaft to drive the storage rollers and take-up rollers to move synchronously in opposite directions.

[0010] Furthermore, there are eight winding rollers in total, which are sequentially divided into an upper output guide group, a middle tension guide assembly, and a lower winding guide group. The tension guide group contains two winding rollers: a tension roller and a guide roller. A slide block that mates with the tension roller is slidably mounted on the support frame. The tension roller is rotatably connected to the slide block. The guide roller is positioned directly above the plate support.

[0011] Furthermore, the plate support is divided into a horizontal transition section and an inclined guide section. The guide roller is located directly above the transition section, and the distance between the guide roller and the transition section is greater than or equal to the thickness of the label tape.

[0012] Furthermore, the clamping assembly includes a connecting bracket, a connecting shaft, and a clamping roller. The tail end of the connecting bracket is rotatably connected to the plate support, and an elastic element is mounted on the rotating shaft to provide a downward torsional force to the connecting bracket. The clamping roller is rotatably connected to the outer end of the connecting bracket via the connecting shaft.

[0013] Furthermore, infrared sensors are installed on both the top and bottom surfaces of the plate bracket.

[0014] Furthermore, the conveyor belt assembly includes a conveyor drive motor, a conveyor belt, and two conveyor rollers. The two conveyor rollers are spaced apart on the frame, and their ends are rotatably connected to the frame. The two conveyor rollers are connected by a conveyor belt drive. The various adsorption holes are arranged in an array on the conveyor belt. The air duct adsorption assembly is located below the conveyor surface of the conveyor belt.

[0015] Furthermore, the air duct adsorption assembly includes a main air duct and multiple air ducts arranged sequentially and at intervals on the main air duct. Both the main air duct and each air duct are plastic pipes with one closed end and the other open. The open end of the main air duct is connected to an external air pump. Multiple connection holes for mating with the air ducts are sequentially and at intervals on the main air duct. The open ends of each air duct are sequentially inserted into their respective connection holes. Multiple air intakes are sequentially and at intervals on each air duct.

[0016] Compared with the prior art, the present invention has the following advantages: 1. This utility model incorporates a tilting plate at the output end of the label output mechanism, causing the label tape to form an angled structure as it passes the end of the tilting plate. This automatically detaches the label edge from the label tape, reducing label retention. Simultaneously, an air duct adsorption component is installed below the conveyor belt's conveyor surface, and adsorption holes are formed on the conveyor belt. This allows individually input document bags to be adsorbed by the conveyor belt, preventing document retention due to label adhesion.

[0017] 2. In this utility model, by setting an elastic element on the rotating shaft at the end of the connecting bracket, the pressing roller can adapt to the pressing operation of labels on document bags of different thicknesses, while effectively applying pressure to the labels attached to the document bags being processed, so that they are firmly attached to the document bags being processed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the relative positions of the pressure roller and the label output mechanism in this utility model; Figure 3 This is a schematic diagram of the tag output mechanism in this utility model. Figure 2 (Cross-sectional view along the AA direction) Figure 4 This is a schematic diagram showing the relative positions of the guide roller and the plate bracket in this utility model. Figure 3 (Enlarged view of part B in the middle section) Figure 5 This is a schematic diagram of the clamping assembly in this utility model. Figure 3 (Enlarged view of part C in the middle section).

[0019] Reference numerals: 100, label tape; 1, frame; 2, labeling assembly; 3, pressing assembly; 4, conveyor belt assembly; 5, air duct adsorption assembly; 6, lifting plate; 7, label output mechanism; 8, plate support; 8-1, transition section; 8-2, guide section; 9, storage roller; 10, winding roller; 11, tension roller; 12, guide roller; 13, connecting bracket; 14, pressing roller; 15, support frame. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper side", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figure 1 and 2 As shown, a single-sided labeling machine for express delivery includes a frame 1, and an adsorption conveying mechanism, a labeling component 2, and a pressing component 3 mounted on the frame 1. The adsorption conveying mechanism includes a conveyor belt assembly 4 and an air duct adsorption assembly 5. The conveyor belt assembly 4 has multiple adsorption holes on its conveying surface. The air duct adsorption assembly 5 is located below the conveying surface of the conveyor belt assembly 4 and can draw air inward to create negative pressure at each adsorption hole, causing the document bag being processed to adhere to the conveying surface of the conveyor belt assembly 4.

[0023] The labeling assembly 2 includes a lifting plate 6 and a label output mechanism 7. The lifting plate 6 is located at the output end of the label output mechanism 7. The label strip 100 in the label output mechanism 7 forms an angled structure at the lifting plate 6, allowing the label attached to the label strip 100 to be lifted by the lifting plate 6 and adhered to the document bag being processed. A pressing assembly 3 is installed at the outer end of the lifting plate 6 to further press the label affixed to the document bag, ensuring a firm adherence.

[0024] Specifically, such as Figure 2 and 3 As shown, the label output mechanism 7 includes a support frame 15, and a plate bracket 8, storage rollers 9, winding rollers 10, a winding drive motor, and multiple winding rollers mounted on the support frame 15. The plate bracket 8 is obliquely fixed to the bottom of the support frame 15 and extends outward to form an obliquely suspended fixed end. A lifting plate 6 is fixed to the fixed end.

[0025] Storage roller 9, take-up roller 10, and various winding rollers are arranged sequentially on the support frame 15 and are all rotatably connected to the support frame 15. The take-up drive motor is mounted on the back of the support frame 15, and a transmission gear set is provided on the power output shaft to drive the storage roller 9 and the take-up roller 10 to move synchronously in opposite directions. The label tape 100 with the label attached is wound around the storage roller 9, and the first end passes around each winding roller and the lifting plate 6 in sequence, and finally is wound around the take-up roller 10.

[0026] During processing, the winding drive motor drives the winding roller 10 to rotate, which in turn drives the storage roller 9 to rotate synchronously via the transmission assembly, thereby releasing the label tape 100 outward. The label tape 100 passes through each winding roller in sequence. When it passes the fold at the end of the lifting plate 6, the outer edge of the label attached to the label tape 100 separates from the label tape 100 and adheres to the document bag being processed, which is conveyed by the conveyor belt assembly 4. The winding roller 10 and the conveyor belt assembly 4 drive the label tape 100 and the document bag being processed to move in opposite directions, so that the label can be completely adhered to the document bag being processed, and further rolled and adhered by the pressing assembly 3.

[0027] Furthermore, there are eight winding rollers in total, which are sequentially divided into an upper output guide group, a middle tension guide assembly, and a lower take-up guide group. The tension guide group contains two winding rollers: a tension roller 11 and a guide roller 12. A slide block that cooperates with the tension roller 11 is slidably mounted on the support frame 15. The tension roller 11 is rotatably connected to the slide block. When the operator needs to adjust the tension of the label tape 100, the tension roller 11 can be moved towards the principle storage roller 9 to adjust the tension of the label tape 100. The guide roller 12 is located directly above the plate bracket 8 and is used to guide the label tape 100 towards the lifting plate 6 mounted on the plate bracket 8.

[0028] In some embodiments, a locking screw is installed on the side of the slide away from the tension roller 11. A groove is provided on the support frame 15 to engage with the threaded end of the locking screw. The threaded end of the locking screw passes through the groove and is threadedly connected to the slide. When the operator needs to adjust the position of the tension roller 11, the locking screw can be loosened to allow the slide to move freely. When the slide moves to the designated position, the locking screw is tightened to lock the slide in place.

[0029] Furthermore, such as Figure 4 As shown, the plate support 8 is divided into a horizontal transition section 8-1 and an inclined guide section 8-2. The guide roller 12 is located directly above the transition section 8-1, and the distance between the guide roller 12 and the transition section 8-1 is greater than or equal to the thickness dimension of the label tape 100.

[0030] In this embodiment, the transmission gear assembly includes a driving gear, a driven gear, and multiple transmission gears. The driving gear and driven gear are fixed to the rotating shafts of the winding roller 10 and the storage roller 9, respectively. The output shaft of the winding drive motor is connected to the driving gear. The sequentially meshing transmission gears are positioned between the driving gear and the driven gear, with the first and last transmission gears meshing with the driving gear and the driven gear, respectively.

[0031] In this embodiment, the number of transmission gears is odd, so that the take-up roller 10 and the drive roller driven by the drive gear can move synchronously in opposite directions. At the same time that the storage roller 9 releases the wrapped label tape 100 with the label attached, the take-up roller 10 can retract and wind the label tape 100 after the label is pasted.

[0032] like Figure 5 As shown, the pressing assembly 3 includes a connecting bracket 13, a connecting shaft, and a pressing roller 14. The tail end of the connecting bracket 13 is rotatably connected to the plate support 8, and an elastic element is mounted on the rotating shaft, providing a downward torsional force to the connecting bracket 13. The pressing roller 14 is rotatably connected to the outer end of the connecting bracket 13 via the connecting shaft. When the document bag being processed is conveyed past the position of the pressing roller 14 via the conveyor belt assembly 4, the pressing roller 14, under the downward torsional force in the connecting bracket 13, applies pressure to the label attached to the document bag, ensuring it adheres firmly to the document bag.

[0033] Furthermore, infrared sensors are installed on the top and bottom surfaces of the plate support 8, respectively, to monitor whether a label is attached to the label tape 100 and whether the processed document bag has moved to below the lifting plate 6.

[0034] In this embodiment, the elastic element is a torsion spring.

[0035] like Figure 3 As shown, the conveyor belt assembly 4 includes a conveyor drive motor, a conveyor belt, and two conveyor rollers. The two conveyor rollers are spaced apart on the frame 1, and their ends are rotatably connected to the frame 1. The two conveyor rollers are connected by a conveyor belt drive. The adsorption holes are arranged in an array on the conveyor belt, which, under the action of the air duct adsorption assembly 5, creates a negative pressure at the top, causing the document bag to be processed to adhere to the conveyor surface of the conveyor belt.

[0036] In this embodiment, the distance between two adjacent columns of adsorption holes is less than the width of the document bag being processed, ensuring that the document bag being processed can be adsorbed onto the conveyor belt.

[0037] The air duct adsorption assembly 5 includes a main air duct and multiple air ducts arranged at intervals along the main air duct. Both the main air duct and each air duct are plastic pipes with one closed end and the other open. The open end of the main air duct is connected to an external air pump. Multiple connecting holes for the air ducts are arranged at intervals along the main air duct. The open ends of each air duct are inserted into the connecting holes. Each air duct has multiple air intakes arranged at intervals. When the air pump operates, air is drawn in through the air intakes on each air duct. When the adsorption holes on the conveyor belt pass above the air intakes, a negative pressure is created due to the intake of air, achieving adsorption of the processed document bag.

[0038] In some embodiments, the outer ring of the duct connector is wrapped with sealing tape.

[0039] The working principle of this utility model is as follows: The document bags to be processed are fed one by one onto the conveyor belt via an external feeding mechanism. An external air pump operates, drawing air in through the suction ports on each air duct. This creates a negative pressure in the suction holes on the conveyor belt, adsorbing and conveying the document bags to the conveyor belt.

[0040] Subsequently, when the infrared sensor on the bottom surface of the plate support 8 senses the document bag being processed passing beneath it, the infrared sensor on the top surface of the plate support 8 senses whether a label is still attached to the label tape 100. If so, the winding drive motor is activated. The winding drive motor drives the winding roller 10 and the drive roller to achieve synchronous reverse movement through the transmission gear assembly. The storage roller 9 releases the wound label tape 100 with the attached label. When the label on the label tape 100 passes the corner on the lifting plate 6, the leading edge of the label detaches from the label tape 100 and hangs in a suspended state. The distance between the label and the conveyor surface of the conveyor belt is slightly less than the thickness of one document bag being processed. At the same time, the winding roller 10 can rewind the label tape 100 after the label is pasted.

[0041] The conveyor belt continues to move the document bag being processed, and as it passes the leading edge where the label is suspended, the label is automatically attached to the document bag. Subsequently, the document bag is transported by the conveyor belt to the position of the pressure roller 14, where the pressure roller 14 applies pressure to the label attached to the document bag, making it firmly adhered to the document bag.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A single-sided labelling machine for express delivery labels, comprising a frame (1), characterised in that: It also includes an adsorption conveying mechanism, a labeling assembly (2) and a pressing assembly (3) mounted on the frame (1). The adsorption and conveying mechanism includes a conveyor belt assembly (4) and an air duct adsorption assembly (5); wherein, a plurality of adsorption holes are provided on the conveying surface of the conveyor belt assembly (4); the air duct adsorption assembly (5) is located below the conveying surface of the conveyor belt assembly (4) and is used to draw air inward. The labeling component (2) includes a lifting plate (6) and a label output mechanism (7); the lifting plate (6) is set on the output end of the label output mechanism (7); the label strip (100) in the label output mechanism (7) forms a bend structure at the lifting plate (6); the pressing component (3) is installed on the outer end of the lifting plate (6), and its bottom is pressed and adhered to the conveying surface of the conveyor belt component (4).

2. The single-sided label applicator of claim 1, wherein: The label output mechanism (7) includes a support frame (15), and a plate bracket (8), a storage roller (9), a winding roller (10), a winding drive motor, and multiple winding rollers mounted on the support frame (15). The plate bracket (8) is inclinedly fixed to the bottom of the support frame (15) and extends outward to form an inclined suspension fixed end. The lifting plate (6) is fixed on the fixed end. The storage roller (9), the winding roller (10), and each winding roller are arranged sequentially on the support frame (15) and are all rotatably connected to the support frame (15). The winding drive motor is mounted on the back of the support frame (15), and a transmission gear set is provided on the power output shaft to drive the storage roller (9) and the winding roller (10) to move synchronously in opposite directions.

3. The single-sided label applicator of claim 2, wherein: There are eight winding rollers in total, which are respectively divided into an output guide group located at the top, a tension guide assembly located in the middle, and a winding guide group located at the bottom; there are two winding rollers in the tension guide group, namely a tension roller (11) and a guide roller (12); a slide block that cooperates with the tension roller (11) is slidably arranged on the support frame (15); the tension roller (11) is rotatably connected to the slide block; the guide roller (12) is located directly above the plate bracket (8).

4. The single-sided label applicator of claim 3, wherein: The plate support (8) is divided into a horizontal transition section (8-1) and an inclined guide section (8-2); the guide roller (12) is located directly above the transition section (8-1), and the distance between the guide roller (12) and the transition section (8-1) is greater than or equal to the thickness dimension of the label tape (100).

5. The single-sided label applicator of claim 2, wherein: The clamping assembly (3) includes a connecting bracket (13), a connecting shaft, and a clamping roller (14); the tail end of the connecting bracket (13) is rotatably connected to the plate bracket (8), and an elastic element is installed on the rotating shaft, which can provide a downward torsional force to the connecting bracket (13); the clamping roller (14) is rotatably connected to the outer end of the connecting bracket (13) through the connecting shaft.

6. The single-sided label applicator of claim 2, wherein: Infrared sensors are installed on both the top and bottom surfaces of the plate bracket (8).

7. The single-sided label applicator of claim 1, wherein: The conveyor belt assembly (4) includes a conveyor drive motor, a conveyor belt and two conveyor rollers; the two conveyor rollers are spaced apart on the frame (1) and their ends are rotatably connected to the frame (1); the two conveyor rollers are connected by a conveyor belt; each adsorption hole is arranged in an array on the conveyor belt; the air duct adsorption assembly (5) is located below the conveyor surface of the conveyor belt.

8. The single-sided label applicator of claim 1, wherein: The air duct adsorption assembly (5) includes a main air duct and multiple air ducts arranged sequentially and at intervals on the main air duct; the main air duct and each air duct are plastic pipe fittings with one end closed and the other end open; the open end of the main air duct is connected to an external air pump; multiple connecting holes that cooperate with the air ducts are opened sequentially and at intervals on the main air duct; the open ends of each air duct are inserted sequentially into each connecting hole; and multiple air intakes are opened sequentially and at intervals on each air duct.

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