Smart milk carton label attaching machine

Abstract

The present invention relates to the technical field of labeling machines, and specifically to an intelligent milk carton label attaching machine, comprising a main machine, and also comprising a deformable stabilizing structure, a pressurizing component and a movable labeling roller; the deformable stabilizing structure is arranged directly above the labeling position of the main machine, and is used to contact the tops of milk cartons of different shapes; the pressurizing component is arranged on the deformable stabilizing structure, and in the process of the deformable stabilizing structure contacting the milk carton, the intelligent milk carton label attaching machine, by introducing the deformable stabilizing structure and the pressurizing component, its deformable stabilizing structure can adapt to the different top sealing shapes of the milk carton, and the pressurizing component clamps the side of the milk carton and applies pressure to keep the box body in a slightly expanded state, thereby ensuring that the labeling surface is flattened and not deformed. In addition, the design of the movable labeling roller can move and label according to the expanded side of the milk carton, so as to achieve seamless constant pressure contact between the label and the milk carton, thereby effectively solving the labeling quality problem caused by the soft and easy deformation of the milk carton material.

Description

Technical Field

[0001] The invention relates to the technical field of labeling machines, in particular to an intelligent milk box label attaching machine. Background Art

[0002] With the rapid development of modern packaging technology, the requirements of the food packaging industry for labeling technology are also constantly increasing. In the packaging process of liquid foods such as milk, it is very important to ensure the close fit between the label and the packaging container (especially the soft milk carton). This close fit can not only ensure the beauty of the product appearance, but also effectively prevent the label from falling off or generating bubbles, thereby maintaining the overall quality of the product and extending the shelf life.

[0003] However, the material characteristic of milk cartons lies in their softness. When the milk cartons are filled with milk and sealed, during the labeling process, the box body is prone to deformation during the labeling process, such as dents. This deformation will directly affect the labeling quality, making it impossible for the label to fully contact the box body smoothly, resulting in undesirable phenomena such as wrinkling and skewness of the label, which in turn affects the overall appearance and market competitiveness of the product. Therefore, how to overcome the problem of soft and easy deformation of milk carton materials and achieve high-quality label attachment has become a technical problem that needs to be urgently solved in the current food packaging industry. To this end, we propose an intelligent milk carton label attaching machine. Summary of the invention

[0004] A technical problem to be solved by the present application is to overcome the problem that the milk carton material is soft and easy to deform, and to achieve high-quality attachment of the label.

[0005] To solve the above technical problems, the embodiment of the present application provides an intelligent milk carton label attaching machine, including a main machine, a deformable stable structure, a pressurizing component and a movable labeling roller;

[0006] The deformation stabilizing structure is arranged just above the labeling position of the host, and is used to contact the top of the milk carton in different shapes;

[0007] The pressurizing component is arranged on the deformation stabilizing structure, and when the deformation stabilizing structure contacts the milk box, the pressurizing component contacts the side of the milk box and applies pressure, so that the milk box remains in a slightly expanded state;

[0008] The movable labeling rollers are arranged at both sides of the bottom of the deformation stable structure. The labels are conveyed around the movable labeling rollers, and the movable labeling rollers are moved and labeled according to the expanded side of the milk carton, so that the labels are always in seamless constant pressure contact with the milk carton.

[0009] In some embodiments, the deformation stabilizing structure includes a bracket disposed on the host, and a mounting plate fixed to the bracket is disposed directly above the labeling position of the host;

[0010] A cylinder is arranged at the bottom of the mounting plate, a sleeve is arranged at the output end of the cylinder, and a plurality of reinforced telescopic rods are arranged between the mounting plate and the sleeve;

[0011] The sleeve opening faces downwards, and the inner diameter is larger than the outer diameter of the milk box. An adaptive contact module is arranged inside the sleeve to achieve adaptive seamless contact with different top sealing shapes of the milk box.

[0012] In some embodiments, the pressure component includes a pressure clamping rod rotatably installed on both sides of the sleeve, and a linkage component is arranged between the pressure clamping rod and the deformation stabilizing structure. When the sleeve moves down to contact the milk carton, the pressure clamping rod deflects and contacts the side of the milk carton where the label is not attached, and clamps and pressurizes the milk carton to expand to ensure that the labeling surface is flat and not deformed.

[0013] In some embodiments, the linkage component includes a traction rope with one end fixed to the fixed end of the reinforced telescopic rod, and a mounting shaft is rotatably provided at the top of the sleeve, and the other end of the traction rope is fixedly wound around the mounting shaft;

[0014] A torsion spring is sleeved on the installation shaft, and when the installation shaft rotates, the torsion spring is driven to twist and contract. The pressure clamping rod is installed by rotating the rotating shaft, and gears that mesh with each other are arranged on the installation shaft and the rotating shaft.

[0015] In some embodiments, the outer diameter of the gear on the mounting shaft is much smaller than the outer diameter of the gear on the rotating shaft.

[0016] In some embodiments, the outer side of the reinforced telescopic rod is provided with an external thread, and a threaded ring is threadedly installed on the outer side thereof, a movable ring is rotatably installed on the threaded ring, and the end of the traction rope away from the installation shaft is fixed on the movable ring;

[0017] Bolts are threaded through the pressurizing clamp rods, plates are provided at the ends of the bolts, contact airbag plates are provided on the plates, and the adaptive contact module is an airbag. A plurality of digital air pressure sensors are also provided on the sleeve to continuously monitor the air pressure in the adaptive contact module and the contact airbag plate respectively, so as to adjust the pressurizing position according to milk cartons of different specifications, and clamp the milk cartons at constant pressure for pressurization.

[0018] In some embodiments, a limiting ring is further provided at the fixed end of the reinforced telescopic rod, and the traction rope passes through the limiting ring.

[0019] In some embodiments, the movable labeling roller includes a mounting frame arranged on the main machine and located on both sides of the milk carton, the mounting frame is provided with an electric push rod, and a top pressure roller is provided at the end of the electric push rod;

[0020] A monitoring module is also provided on the mounting frame. When the milk carton is conveyed to the labeling position, the electric push rod drives the top pressure roller to approach the milk carton, and at the same time the deformation stabilizing structure and the pressure-applying component start to move to start the labeling process, and the electric push rod pulls the top pressure roller backward at the local bulging position of the milk carton.

[0021] In some embodiments, the monitoring module includes two infrared signal transmitters and two infrared signal receivers, which are arranged in pairs and are respectively arranged on two side mounting frames in the front and rear directions of the milk carton conveying direction;

[0022] The deformation stabilizing structure is movably arranged on the mounting plate. When a milk carton is detected in the front, the deformation stabilizing structure and the pressure-applying component start to move and follow the movement of the milk carton. When a milk carton is detected in the rear, the electric push rod drives the top pressure roller to move for labeling.

[0023] In some embodiments, a stepper motor and a screw are provided at the bottom of the mounting plate, the extension direction of the screw is the same as the conveying direction of the milk carton, and a drive seat is threadedly mounted on the screw, and a guide rail for limiting the rotation of the drive seat is provided at the bottom of the mounting plate, and the cylinder and the reinforced telescopic rod are fixed to the drive seat by a plate to drive the cylinder to drive the sleeve to repeatedly shift.

[0024] The present invention has at least the following beneficial effects:

[0025] By introducing a deformation stabilizing structure and a pressurizing component, the deformation stabilizing structure can adapt to different top sealing shapes of milk cartons to ensure stable contact. The pressurizing component clamps the side of the milk carton and applies pressure to keep the carton body in a slightly expanded state, thereby ensuring that the labeling surface is flat and non-deformed. In addition, the design of the movable labeling roller can move and label according to the expanded side of the milk carton, achieving seamless constant-pressure contact between the label and the milk carton, and then maintaining constant-pressure contact during labeling of the soft milk carton body, thereby effectively solving the labeling quality problem caused by the soft and easy deformation of the milk carton material, ensuring high-quality attachment and use of the milk carton label, and bringing significant beneficial effects to the food packaging industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall standby state structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall labeling state structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the main machine and the movable labeling roller of the present invention;

[0029] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of the middle A area;

[0030] Figure 5 It is a schematic diagram of the structure of the deformation stabilizing framework and the pressurizing component of the present invention;

[0031] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of the middle B area;

[0032] Figure 7 For the present invention Figure 5 Another structural diagram;

[0033] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of the middle C area;

[0034] Fig. 9 For the present invention Figure 7 Schematic diagram of the enlarged structure of area D in the middle.

[0035] In the figure: 1. main machine; 2. deformation stabilizing structure; 3. pressurizing component; 4. movable labeling roller; 21. bracket; 22. mounting plate; 23. cylinder; 24. sleeve; 25. reinforced telescopic rod; 26. adaptive contact module; 27. stepper motor; 28. screw; 29. ​​drive seat; 210. guide rail; 31. pressurizing clamp rod; 32. linkage component; 33. traction rope; 34. mounting shaft; 35. torsion spring; 36. gear; 37. threaded ring; 38. movable ring; 39. bolt; 310. sheet; 311. contact airbag sheet; 312. digital air pressure sensor; 313. limiting ring; 41. mounting frame; 42. electric push rod; 43. top pressure roller; 44. monitoring module; 45. infrared signal transmitter; 46. infrared signal receiver. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-9 , the present invention provides a technical solution:

[0038] Embodiment 1: An intelligent milk carton label attaching machine comprises a main machine 1, a deformable stable structure 2, a pressurizing component 3 and a movable labeling roller 4;

[0039] The deformation stabilizing structure 2 is arranged just above the labeling position of the main machine 1, the pressure-applying component 3 is arranged on the deformation stabilizing structure 2, and the movable labeling roller 4 is arranged at the two sides of the bottom of the deformation stabilizing structure 2. During the conveying process of the milk carton to be labeled, when it reaches the labeling position, the deformation stabilizing structure 2 moves down to contact and cover the top of the milk carton, and the pressure-applying component 3 contacts the side of the milk carton and applies pressure to keep the milk carton in a slightly expanded state. At this time, the deformation stabilizing structure 2 stably presses the sealing position of the top of the milk carton to avoid the irreversible deformation of the complex top shape (such as the roof-type shape) due to expansion. At the same time, the movable labeling roller 4 moves and labels according to the expanded side of the milk carton, using the expansion of the milk carton to avoid its depression, and cooperates with the movable labeling of the movable labeling roller 4, so that the label is always seamlessly and constantly pressed with the milk carton and fully contacted to ensure high-quality labeling.

[0040] As a technical means:

[0041] The deformation stabilizing structure 2 includes a bracket 21 disposed on the host 1, and a mounting plate 22 fixed on the bracket 21 is disposed just above the labeling position of the host 1;

[0042] A cylinder 23 is provided at the bottom of the mounting plate 22, a sleeve 24 is provided at the output end of the cylinder 23, and a plurality of reinforcing telescopic rods 25 are provided between the mounting plate 22 and the sleeve 24 to ensure the stability of the sleeve 24;

[0043] The sleeve 24 opens downward, and its inner diameter is larger than the outer diameter of the milk carton. An adaptive contact module 26 is arranged inside the sleeve 24, so that the sleeve 24 can be moved downward to contact and cover the top of the milk carton, thereby driving the adaptive contact module 26 to seamlessly contact the top of the milk carton with different sealing shapes.

[0044] The pressurizing component 3 includes a pressurizing clamping rod 31 rotatably mounted on both sides of the sleeve 24, and a linkage component 32 is provided between the pressurizing clamping rod 31 and the deformation stabilizing structure 2, and the linkage component 32 includes a traction rope 33 whose end is fixed to the fixed end of the reinforcing telescopic rod 25, and a mounting shaft 34 is rotatably provided at the top of the sleeve 24, and the other end of the traction rope 33 is fixedly wound around the mounting shaft 34;

[0045] The mounting shaft 34 is also provided with a torsion spring 35, which is driven to twist and contract when the mounting shaft 34 rotates, and the pressure clamping rod 31 is installed by rotating the shaft, and gears 36 meshing with each other are provided on the mounting shaft 34 and the shaft, so that when the sleeve 24 moves downward, the pressure clamping rod 31 can be driven to deflect, thereby clamping and pressurizing the milk box from the side position;

[0046] It should be noted that the traction rope 33 needs to be a metal rope, so that the traction rope 33 can be prevented from aging and stretching during continuous use, thereby preventing the precise driving of the pressure clamping rod 31, and the outer diameter of the gear 36 on the mounting shaft 34 needs to be much smaller than the outer diameter of the gear 36 on the rotating shaft. This is because the overall size limitation of the structure causes the traction rope 33 to be wound relatively quickly, that is, under normal transmission conditions, the pressure clamping rod 31 will also deflect one circle when the traction rope 33 is wound one circle, resulting in a problem of excessive deflection. Therefore, the gear ratio is set to reduce the speed to ensure that the transmission is met.

[0047] The movable labeling roller 4 includes a mounting frame 41 arranged on the main machine 1 and located on both sides of the milk carton. An electric push rod 42 is arranged on the mounting frame 41. A top pressing roller 43 is arranged at the end of the electric push rod 42. The label passes around the top pressing roller 43.

[0048] A monitoring module 44 is also provided on the mounting frame 41. When the milk carton is conveyed to the labeling position, the electric push rod 42 drives the top pressure roller 43 to bring the label close to the milk carton, and at the same time, the deformation stabilizing structure 2 and the pressure component 3 start to act to start the labeling process, and at the local bulging position of the milk carton, the electric push rod 42 pulls the top pressure roller 43 to move backward, and continues to push the label after the bulging position is affixed. It should be noted that at this time, the host 1 will adjust the label supply speed accordingly to tighten the label to achieve the phenomenon that the label moves backward with the top pressure roller 43, thereby realizing the labeling process according to the milk carton. The degree of local bulging changes the label attachment position at the same time to ensure that the label is always in constant pressure contact with the milk carton. It should be noted that for the milk cartons of the same batch, their surface expansion degrees are basically the same when they are clamped and compressed at constant pressure. At this time, the pushing length, return speed and secondary pushing speed of the electric push rod 42 can be preset on the main unit 1 according to the expansion degree. In addition, it should be noted that the bulging of the box body is due to the relatively large clamping pressure. The clamping pressure can also be set to ensure that the box body is flat and not concave, depending on the actual labeling conditions caused by the demand and the different softness of the box body.

[0049] Embodiment 2: Based on Embodiment 1, this embodiment further improves the design of the pressurizing component 3.

[0050] A contact airbag sheet 311 is provided on the pressurized clamping rod 31, and the adaptive contact module 26 is an airbag, where a soft contact method is adopted, and constant pressure soft contact can be provided by designing its internal air pressure, thereby avoiding leaving traces of pressurized clamping on the surface of the box body and affecting the aesthetics.

[0051] Embodiment 3: Based on Embodiment 2, this embodiment further improves the design of Embodiment 2.

[0052] The outer side of the reinforced telescopic rod 25 is provided with an external thread, and a threaded ring 37 is threadedly installed on the outer side thereof, and a movable ring 38 is rotatably installed on the threaded ring 37. The end of the traction rope 33 away from the installation shaft 34 is fixed on the movable ring 38, so that the top end of the traction rope 33 is adjustable;

[0053] Bolts 39 are threaded through the pressure clamping rod 31, and plates 310 are provided at the ends of the bolts 39. The contact airbag sheet 311 is installed on the plate 310, and a plurality of digital air pressure sensors 312 are also provided on the sleeve 24. The digital air pressure sensors 312 are fixedly connected with the contact airbag sheet 311 and the airbag type adaptive contact module 26 by means of catheters. In this way, in actual use, especially when processing milk cartons of different specifications and sizes, the digital air pressure sensors 312 can be used to continuously monitor the air pressure in the adaptive contact module 26 and the contact airbag sheet 311 respectively. In this way, after the traction rope 33 is first relaxed, the sleeve 24 can be set to move downward continuously, and the air pressure change can be continuously monitored until it reaches the constant pressure value used. Similarly, after the height position of the sleeve 24 is fixed, the threaded ring 37 is used to continuously pull the end position of the traction rope 33, so that the pressure clamping rod 31 is continuously pulled and clamped until the internal air pressure reaches the constant pressure value used, thereby improving the overall applicability of the equipment.

[0054] It should be noted that in order to ensure the traction accuracy of the traction rope 33, a limiting ring 313 is also required to be provided at the fixed end of the reinforced telescopic rod 25, and the traction rope 33 passes through the limiting ring 313. This can ensure that the force position of the traction rope 33 remains unchanged, and effectively avoid changing the trajectory of the traction rope 33 when adjusting the height of the threaded ring 37, thereby affecting its precise transmission.

[0055] Embodiment 4: Based on Embodiment 3, this embodiment further improves the design of Embodiment 3.

[0056] The monitoring module 44 includes two infrared signal transmitters 45 and two infrared signal receivers 46, which are arranged in pairs and are respectively arranged on the mounting frames 41 on both sides in the conveying direction of the milk cartons;

[0057] The deformation stabilizing structure 2 is movably arranged on the mounting plate 22. When a milk carton is detected in the front, the deformation stabilizing structure 2 and the pressure-applying component 3 start to move and follow the movement of the milk carton. When a milk carton is detected in the rear, the electric push rod 42 drives the top pressure roller 43 to move for labeling.

[0058] A stepper motor 27 and a screw 28 are arranged at the bottom of the mounting plate 22. The extending direction of the screw 28 is the same as the conveying direction of the milk carton, and a driving seat 29 is threadedly mounted on the screw 28. A guide rail 210 for limiting the rotation of the driving seat 29 is arranged at the bottom of the mounting plate 22. The cylinder 23 and the reinforced telescopic rod 25 are fixed on the driving seat 29 by means of a plate to drive the cylinder 23 to drive the sleeve 24 to shift repeatedly.

[0059] By utilizing such a design, the deformation stabilizing structure 2 and the pressurizing component 3 can achieve dynamic contact, thereby completing high-quality label attachment and use during the milk carton conveying process, effectively avoiding affecting the normal labeling efficiency.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent milk carton label attaching machine, comprising a main machine (1), characterized in that: It also includes a deformable stabilizing structure (2), a pressurizing component (3) and a movable labeling roller (4); The deformation stabilizing structure (2) is arranged just above the labeling position of the host (1) and is used to contact the top of the milk carton in different shapes; The pressurizing component (3) is arranged on the deformation stabilizing structure (2); when the deformation stabilizing structure (2) contacts the milk carton, the pressurizing component (3) contacts the side of the milk carton and applies pressure, so that the milk carton remains in a slightly expanded state; The movable labeling roller (4) is arranged at both sides of the bottom of the deformation stabilizing structure (2), and the label bypasses the movable labeling roller (4) when being transported, and the movable labeling roller (4) moves and labels according to the expanded side of the milk carton, so that the label is always in seamless constant pressure contact with the milk carton; The deformation stabilizing structure (2) comprises a bracket (21) arranged on the main machine (1), and a mounting plate (22) fixed on the bracket (21) is arranged directly above the labeling position of the main machine (1); A cylinder (23) is arranged at the bottom of the mounting plate (22), a sleeve (24) is arranged at the output end of the cylinder (23), and a plurality of reinforced telescopic rods (25) are arranged between the mounting plate (22) and the sleeve (24); The sleeve (24) opens downwards and has an inner diameter greater than an outer diameter of the milk carton. An adaptive contact module (26) is arranged inside the sleeve (24) to achieve adaptive seamless contact with different top sealing shapes of the milk carton. The pressurizing component (3) includes pressurizing clamping rods (31) rotatably mounted on both sides of the sleeve (24), and a linkage component (32) is provided between the pressurizing clamping rods (31) and the deformation stabilizing structure (2). When the sleeve (24) moves downward to contact the milk carton, the pressurizing clamping rods (31) deflect to contact the side of the milk carton where no label is attached, and clamp and pressurize the milk carton to cause it to expand, thereby ensuring that the labeling surface is flat and free of deformation. The linkage component (32) comprises a traction rope (33) whose end is fixed to the fixed end of the reinforced telescopic rod (25); a mounting shaft (34) is rotatably provided at the top of the sleeve (24); and the other end of the traction rope (33) is fixedly wound around the mounting shaft (34); A torsion spring (35) is sleeved on the installation shaft (34). When the installation shaft (34) rotates, the torsion spring (35) is driven to twist and contract. The pressure clamping rod (31) is installed by rotating the rotating shaft, and gears (36) that mesh with each other are provided on the installation shaft (34) and the rotating shaft. The outer diameter of the gear (36) on the mounting shaft (34) is much smaller than the outer diameter of the gear (36) on the rotating shaft; The reinforced telescopic rod (25) is provided with an external thread on its outer side, and a threaded ring (37) is threadedly mounted on the outer side, a movable ring (38) is rotatably mounted on the threaded ring (37), and the end of the traction rope (33) away from the mounting shaft (34) is fixed on the movable ring (38); A bolt (39) is threadedly passed through the pressurizing clamp rod (31), a plate (310) is provided at the end of the bolt (39), a contact airbag plate (311) is provided on the plate (310), the adaptive contact module (26) is an airbag, and a plurality of digital air pressure sensors (312) are provided on the sleeve (24) to respectively and continuously monitor the air pressure in the adaptive contact module (26) and the contact airbag plate (311), so as to adjust the pressurizing position according to milk cartons of different specifications, and to clamp the milk cartons at a constant pressure for pressurization; A limiting ring (313) is also provided at the fixed end of the reinforced telescopic rod (25), and the traction rope (33) passes through the limiting ring (313).

2. The intelligent milk carton label attaching machine according to claim 1 is characterized by: The movable labeling roller (4) comprises a mounting frame (41) arranged on the main machine (1) and located on both sides of the milk carton, an electric push rod (42) is arranged on the mounting frame (41), and a pressing roller (43) is arranged at the end of the electric push rod (42); A monitoring module (44) is also provided on the mounting frame (41). When the milk carton is transported to the labeling position, the electric push rod (42) drives the top pressure roller (43) to approach the milk carton, and at the same time, the deformation stabilizing structure (2) and the pressure component (3) start to move to start the labeling process, and the electric push rod (42) pulls the top pressure roller (43) to move backward at the local bulging position of the milk carton.

3. The intelligent milk box label attaching machine according to claim 2 is characterized by: The monitoring module (44) comprises two infrared signal transmitters (45) and two infrared signal receivers (46), which are arranged in pairs and are respectively arranged on the mounting frames (41) on both sides in the front and rear directions of the milk carton conveying direction; The deformation stabilizing structure (2) is movably arranged on the mounting plate (22). When a milk carton is detected in the front, the deformation stabilizing structure (2) and the pressure component (3) start to move and follow the movement of the milk carton. When a milk carton is detected in the rear, the electric push rod (42) drives the top pressure roller (43) to move to label.

4. The intelligent milk box label attaching machine according to claim 3 is characterized by: A stepper motor (27) and a screw (28) are arranged at the bottom of the mounting plate (22). The extension direction of the screw (28) is the same as the conveying direction of the milk carton. A drive seat (29) is threadedly mounted on the screw (28). A guide rail (210) for limiting the rotation of the drive seat (29) is arranged at the bottom of the mounting plate (22). The cylinder (23) and the reinforced telescopic rod (25) are fixed to the drive seat (29) by means of a plate, so that the cylinder (23) drives the sleeve (24) to shift repeatedly.

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