Automatic carton labeling equipment

Abstract

The invention discloses automatic carton labeling equipment. The automatic carton labeling equipment comprises a carton conveying unit, a label conveying unit, a label transferring unit and a side labeling unit. The label conveying unit is arranged on one side of the carton conveying unit and comprises a machine box, a pair of spool assemblies are assembled on one side face of the machine box, one spool assembly is fixed to the output end of a servo motor, the other spool assembly is rotationally matched with one side face of the machine box and used for clamping a winding tape, and a lower tensioning rod, an upper tensioning rod and a separating rod are further arranged on one side face of the machine box. The label transferring unit is arranged on one side of the carton conveying unit, a separating knife is arranged on one side face of the bottom block and used for separating labels from the winding tape from the upper end of the peripheral side of a separating rod, a pressing block is arranged at the output end of the fourth linear mechanism, and a pressing plate is arranged at the output end of the sixth linear mechanism. The side pasting unit is arranged on one side of the carton conveying unit and arranged at one end of the label transferring unit at intervals. According to the carton corner labeling device, automatic and continuous labeling can be conducted on carton corners, manpower is saved, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the technical field of cardboard box production, and in particular to an automatic labeling device for cardboard boxes. Background Technology

[0002] After production, some cardboard boxes require labeling. A common labeling method is corner labeling, where a label is affixed to the junction of two sides of the box, spanning both sides. This method stems from the modern logistics demand for efficient sorting and information visualization. Its core purpose is to affix barcodes or labels across adjacent sides of the box, ensuring that scanning equipment can quickly identify information regardless of how the boxes are stacked. This significantly improves the sorting efficiency and accuracy in warehousing and logistics, while also enhancing the brand's visual appeal.

[0003] Existing technology typically involves manually removing labels one by one from the label roll and then pasting them onto the carton. This method has a low degree of automation, requires dedicated personnel for labeling, and is labor-intensive. Summary of the Invention

[0004] To address the aforementioned shortcomings, this invention provides an automatic labeling device for cardboard boxes, which can automatically and continuously label the corners of cardboard boxes, saving manpower and improving production efficiency.

[0005] In order to achieve the objectives of this invention, the following technologies are proposed: An automatic labeling device for cardboard boxes, comprising: Carton conveying unit; The label conveying unit is located on one side of the carton conveying unit. It includes a chassis and a servo motor installed inside it. The output shaft of the servo motor extends through to the outside of one side of the chassis. A pair of I-beam wheel assemblies are mounted on one side of the chassis. One of them is fixed to the output end of the servo motor, and the other is rotatably engaged with one side of the chassis and used to clamp the tape with the label attached to its surface. A lower tensioning rod and an upper tensioning rod located above the lower tensioning rod are also provided on one side of the chassis. A separation rod is also provided above one side of the upper tensioning rod. The label transfer unit, located on one side of the carton conveying unit, includes a first linear mechanism, a second linear mechanism vertically mounted at its output end, a third linear mechanism mounted on one side of the output end of the second linear mechanism, a base block and a fourth linear mechanism vertically positioned above the base block at the output end of the third linear mechanism, a separating blade on one side of the base block for detaching the label from the tape roll from the upper outer periphery of the separating rod, a pressure block at the output end of the fourth linear mechanism, a fifth linear mechanism mounted on the chassis, a sixth linear mechanism vertically mounted on one side of its output end, and a pressure plate at the output end of the sixth linear mechanism. The side-labeling unit is located on one side of the carton conveying unit and spaced apart at one end of the label transfer unit. It includes a vertically arranged seventh linear mechanism, and its output end is provided with an eighth linear mechanism. The output end of the eighth linear mechanism is provided with a rotating drum.

[0006] Furthermore, the carton conveying unit includes a conveyor belt, with guardrails on both sides of the conveyor belt.

[0007] Furthermore, the H-beam assembly includes an inner disc, one end of which is fixed with a sleeve that matches the inner circumference of the tape reel, and an outer disc is fitted to one end of the sleeve.

[0008] Furthermore, the sleeve has multiple screw holes at one end, and the outer plate has multiple through holes that match the screw holes. The through holes and screw holes are connected by a screw rod, so that the outer plate is fixedly installed on the sleeve.

[0009] Furthermore, a first limiting block is provided at one end of the upper tensioning rod, the lower tensioning rod, and the separating rod, and a second limiting block is provided on the outer periphery of the upper tensioning rod, the lower tensioning rod, and the separating rod.

[0010] Furthermore, the angle between the three points projected onto the side of the chassis by the axes of the lower tension rod, the release rod, and the upper tension rod is between 5° and 20°.

[0011] Furthermore, the output direction of the first linear mechanism is perpendicular to the conveying direction of the conveyor belt on the conveying plane.

[0012] Furthermore, the output directions of the third, fifth, and eighth linear mechanisms are all parallel to the output direction of the first linear mechanism.

[0013] The beneficial effects of this technical solution are as follows: This automatic carton labeling equipment can automatically separate individual labels from the tape roll, then automatically transfer and affix them to the carton, and automatically press the entire label at the corners, which can save a lot of manpower and improve production efficiency. Attached Figure Description

[0014] Figure 1 An overall perspective view of an embodiment of this application is shown.

[0015] Figure 2 A perspective view of a carton conveying unit according to an embodiment of this application is shown.

[0016] Figure 3 A perspective view of the label conveying unit, label transfer unit, and side-applying unit according to an embodiment of this application is shown.

[0017] Figure 4 A perspective view of a tag delivery unit according to an embodiment of this application is shown.

[0018] Figure 5 A partial exploded view of the tag delivery unit according to an embodiment of this application is shown.

[0019] Figure 6A partial perspective view of the tag transfer unit according to an embodiment of this application is shown.

[0020] Figure 7 An embodiment of this application is shown. Figure 3 Enlarged view of part A in the image. Detailed Implementation

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

[0022] like Figures 1-7 The automatic labeling equipment for cartons shown includes a carton conveying unit 1, a label conveying unit 2, a label transfer unit 3, and a side labeling unit 4.

[0023] The carton conveying unit 1 includes a conveyor belt 11, which includes a conveyor belt. Guardrails 12 are provided on both sides of the conveyor belt, and the spacing between the guardrails 12 is 1mm to 5mm larger than the width of the carton 5.

[0024] The label conveying unit 2 is located on one side of the carton conveying unit 1 and includes a housing 21. A servo motor is installed inside the housing 21, with its output shaft extending to the outside of one side of the housing 21. A pair of I-beam wheel assemblies with a height difference of at least 5 cm are mounted on one side of the housing 21. One I-beam wheel assembly is fixed to the output end of the servo motor, while the other I-beam wheel assembly rotatably engages with one side of the housing 21 and is used to clamp the tape 7 with labels 6 affixed to its surface. Each I-beam wheel assembly includes an inner disc 22. A sleeve 221 matching the inner circumference of the tape 7 is fixed to one end of the inner disc 22. An outer disc 23 is mounted on one end of the sleeve 221. Specifically, multiple screw holes 222 are opened at one end of the sleeve 221, and multiple through holes 231 respectively matching the screw holes 222 are opened on the outer disc 23. A screw 232 connects the through holes 231 and the screw holes 222, thus fixing the outer disc 23 to the sleeve 221. More specifically, a rotating... The inner disc 22 of the I-beam wheel assembly, which rotatably fits on one side of the chassis 21, has a rotating rod matching the rotating groove on its other end. One side of the chassis 21 also has a lower tensioning rod 24 and an upper tensioning rod 25 located above the lower tensioning rod 24. A separating rod is also located above the outer periphery of the upper tensioning rod 25. A first limiting block 26 is provided at one end of the upper tensioning rod 25, the lower tensioning rod 24, and the separating rod. The outer periphery of the upper tensioning rod 25, the lower tensioning rod 24, and the separating rod are all... A second limiting block 27 is provided. The distance between each pair of coaxially arranged first limiting blocks 26 and second limiting blocks 27 is the same as the width of the tape 7. The angle between the three points projected onto the side of the housing 21 by the axis of the lower tension rod 24, the axis of the separation rod, and the axis of the upper tension rod 25 is 5° to 20°. This allows the side of the tape 7 with the label 6 to rotate a large angle from the upper end of the outer periphery of the separation rod, which facilitates the separation of the label 6.

[0025] The label transfer unit 3 is located on one side of the carton conveying unit 1 and includes a base 31. The base 31 includes a vertical part and a horizontal part formed at the upper end of the vertical part. The upper end of the horizontal part is provided with a first linear mechanism 32, the output direction of which is perpendicular to the conveying direction of the conveyor belt 11 on the conveying plane. A second linear mechanism 33 is vertically provided at the output end of the first linear mechanism 32. A lifting plate 331 is provided at the output end of the second linear mechanism 33. A third linear mechanism 34 parallel to the first linear mechanism 32 is provided at one end of the lifting plate 331. A vertical plate 341 is provided at the output end of the third linear mechanism 34. A base block 35 is fixed to the lower part of one side of the vertical plate 341. The bottom block 35 has a separating blade 36 on one side, which is used to separate the label 6 from the tape 7 from the upper part of the outer periphery of the separating rod. During operation, the lowest point of the separating blade 36 is at the same height as the interface between the label 6 and the tape 7. The upper part of one side of the vertical plate 341 is vertically fixed with a fourth linear mechanism 37, and its output end is provided with a pressure block 371. The label transfer unit 3 also includes a fifth linear mechanism 38 fixed to the upper end of the housing 21 and parallel to the first linear mechanism 32. The output end of the fifth linear mechanism 38 is provided with a push plate 381. One end of the push plate 381 is vertically provided with a sixth linear mechanism 39, and the output end of the sixth linear mechanism 39 is provided with a pressure plate 391.

[0026] The side-applying unit 4 is located on one side of the carton conveying unit 1 and spaced apart at one end of the label transfer unit 3. It includes a bracket 41. The upper end of the bracket 41 is vertically provided with a seventh linear mechanism 42. Its output end is provided with an eighth linear mechanism 43 parallel to the first linear mechanism 32. The output end of the eighth linear mechanism 43 is provided with a C-shaped frame 44. A rotating cylinder 45 is rotatably engaged between the two parallel sides of the C-shaped frame 44. It is used to press down the horizontally suspended part of the label 6 that has been partially affixed to the upper surface of the carton 5 from the upper corner of the carton 5 and affix it to one side of the carton 5.

[0027] In this embodiment, the first linear mechanism 32, the second linear mechanism 33, the third linear mechanism 34, the fourth linear mechanism 37, the fifth linear mechanism 38, the sixth linear mechanism 39, the seventh linear mechanism 42, and the eighth linear mechanism 43 all adopt single-axis linear cylinders.

[0028] Work style: First, install the tape 7. Specifically, open the outer disc 23 of the I-beam assembly that rotates with the housing 21, put the drum of the tape 7 onto the sleeve 221, then reinstall the outer disc 23, tighten the drum, take out the tape 7, first pass it under the lower tensioning rod 24, then from bottom to top and then from far to near (relative to the distance of the I-beam assembly) around the separating rod, then pass it under the upper tensioning rod 25, and then use a tape to stick the pulled-out end of the tape 7 to the sleeve 221 of another I-beam assembly. Rotate any one of the I-beam assemblies to tension the tape 7.

[0029] When the conveyor belt 11 is running, the cartons 5 are placed sequentially and continuously at predetermined intervals at the starting end of the conveyor belt 11. In this embodiment, the starting end is... Figure 1 , Figure 2 The middle part is near the upper left corner. Next, during operation, the conveyor belt 11 continuously and cyclically performs start and stop actions. The stop time is longer than the time it takes for the label transfer unit 3 to perform one label transfer, and of course, it is also longer than the time it takes for the side labeling unit 4 to perform one label fixing.

[0030] Taking the first cardboard box 5 as an example, when cardboard box 5 is paused and located at one end of label conveying unit 2 and label transfer unit 3, label separation and transfer begin. Specifically, the servo motor inside the housing 21 drives the tape 7 to move along the tensioned path. The height of the separating blade 36 is pre-adjusted by the second linear mechanism 33 so that its lowest point is at the same height as the interface between the label 6 and the tape 7. Then, the third linear mechanism 34 pushes the separating blade 36 until it just contacts the tape 7. When there is no label 6 at the contact point between the tape 7 and the separating blade 36, the tape 7 does not... The label 6 will continue to move due to the influence of the separating blade 36. When the tape 7 moves to the position where the label 6 is attached, the label 6 will be higher than the tape 7 at that position. Therefore, the label 6 will contact the separating blade 36 and detach from the tape 7. At the same time, as the tape 7 continues to move, the label 6 will continue to move towards the vertical plate 341. After a predetermined time, such as 1 second, the servo motor in the housing 21 will stop driving. Then, the fourth linear mechanism 37 will press down the pressure block 371, and the label 6 will be clamped by the pressure block 371 and the bottom block 35. Then the second linear mechanism... The label 6 is lifted by mechanism 33, causing the label 6, base block 35, and third linear mechanism 34 to exceed the separation rod by a certain distance, allowing these components to pass over the separation rod. Then, the label 6 is pushed forward by the first linear mechanism 32, and then the label is placed on the carton 5 by the second linear mechanism 33. Then, the sixth linear mechanism 39 is positioned above one side of the upper surface of the carton 5 by the fifth linear mechanism 38. The sixth linear mechanism 39 presses the pressure plate 391 onto the label 6 and tightens it, thus releasing the clamping action of the pressure block 371. Because the pressure plate 391 tightens the label 6, subsequent... When the bottom block 35 detaches from the adhesive surface of the label 6, it can also detach normally. Next, the conveyor belt 11 starts and stops again, positioning the carton 5 on one side of the side-applying unit 4. Then, the seventh linear mechanism 42 first raises the rotating drum 45, and then the eighth linear mechanism 43 pushes the rotating drum 45 so that it is positioned above the area where the label 6 is suspended. Then, the rotating drum 45 is lowered by the seventh linear mechanism 42. Preferably, when lowering, the outer circumferential tangent of the rotating drum 45 is on the same vertical plane as the outer side of the carton 5. This allows the previously suspended portion of the label 6 to be affixed to the side of the carton. (See reference...) Figure 2Before the operation of the side-labeling unit 4, the label 6 is in the state of the fourth carton 5 counting from the beginning of the conveying. After the operation of the side-labeling unit 4 and the continued conveying of the carton 5, the label 6 will finally be in the state of the carton 5 at the end of the conveying.

[0031] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. An automatic labeling device for cardboard boxes, characterized in that, include: Carton conveying unit (1); The label conveying unit (2) is located on one side of the carton conveying unit (1), including the chassis (21) and the servo motor installed inside it. The output shaft of the servo motor extends through to the outside of one side of the chassis (21). A pair of I-beam wheel assemblies are mounted on one side of the chassis (21), one of which is fixed to the output end of the servo motor, and the other is rotatably fitted to one side of the chassis (21) and used to clamp the roll (7) with the label (6) attached to its surface. A lower tensioning rod (24) and an upper tensioning rod (25) located above the lower tensioning rod (24) are also provided on one side of the chassis (21). A separation rod is also provided above one side of the upper tensioning rod (25). The label transfer unit (3) is located on one side of the carton conveying unit (1), including a first linear mechanism (32), a second linear mechanism (33) is vertically provided at its output end, a third linear mechanism (34) is provided on one side of the output end of the second linear mechanism (33), a bottom block (35) and a fourth linear mechanism (37) vertically located above the bottom block (35) are provided at the output end of the third linear mechanism (34), a separating knife (36) is provided on one side of the bottom block (35) for disengaging the label (6) from the tape (7) from the upper end of the outer periphery of the separating rod, a pressure block (371) is provided at the output end of the fourth linear mechanism (37), a fifth linear mechanism (38) is provided on the machine housing (21), a sixth linear mechanism (39) is vertically provided on one side of its output end, and a pressure plate (391) is provided at the output end of the sixth linear mechanism (39). The side labeling unit (4) is located on one side of the carton conveying unit (1) and spaced apart at one end of the label transfer unit (3). It includes a vertically arranged seventh linear mechanism (42) and an eighth linear mechanism (43) at its output end. The output end of the eighth linear mechanism (43) is provided with a rotating drum (45).

2. The automatic carton labeling equipment according to claim 1, characterized in that, The carton conveying unit (1) includes a conveyor belt conveyor (11), and guardrails (12) are provided on both sides of the conveyor belt of the conveyor belt conveyor (11).

3. The automatic carton labeling equipment according to claim 1, characterized in that, The H-beam assembly includes an inner disc (22), one end of which is fixed with a sleeve (221) that matches the inner circumference of the drum of the tape (7), and an outer disc (23) is fitted at one end of the sleeve (221).

4. The automatic carton labeling equipment according to claim 3, characterized in that, The sleeve (221) has multiple screw holes (222) at one end, and the outer plate (23) has multiple through holes (231) that match the screw holes (222) respectively. The through holes (231) and screw holes (222) are connected by screws (232) so that the outer plate (23) is fixedly installed on the sleeve (221).

5. The automatic labeling equipment for cardboard boxes according to claim 1, characterized in that, The upper tensioning rod (25), the lower tensioning rod (24), and the separation rod are all provided with a first limiting block (26) at one end, and the upper tensioning rod (25), the lower tensioning rod (24), and the separation rod are all provided with a second limiting block (27) on the outer periphery.

6. The automatic labeling equipment for cardboard boxes according to claim 1, characterized in that, The angle between the three points projected onto the side of the chassis (21) by the axes of the lower tension rod (24), the separation rod, and the upper tension rod (25) is 5° to 20°.

7. The automatic labeling equipment for cardboard boxes according to claim 1, characterized in that, The output direction of the first linear mechanism (32) is perpendicular to the conveying direction of the conveyor belt (11) on the conveying plane.

8. The automatic labeling equipment for cardboard boxes according to claim 7, characterized in that, The output directions of the third linear mechanism (34), the fifth linear mechanism (38), and the eighth linear mechanism (43) are all parallel to the output direction of the first linear mechanism (32).

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