Laser coding machine for packaging bag

Abstract

The utility model relates to a laser coding machine for packaging bags, and belongs to the technical field of laser coding machines. Comprising a rack, an unwinding shaft and a winding shaft are arranged on the rack, and two laser coding mechanisms are arranged between the unwinding shaft and the winding shaft; the two laser coding mechanisms are arranged on the front face and the back face of a sheet film and arranged in an up-down staggered mode, the sheet film is unwound through the unwinding shaft, one laser coding mechanism carries out sales code coding on the front face of the sheet film, the other laser coding mechanism carries out integral code coding on the back face of the sheet film, and then the sheet film is wound on the winding shaft. A coding position control unit is arranged on the outlet side of the laser coding mechanism. A visual camera acquisition control unit is arranged on the inlet side of the visual camera unit; a lamp box is arranged on the outlet side of the visual camera unit, and a screen flash instrument is arranged on the top of the rack and located above the film. The device is convenient to operate, when the current breadth of the same bag is printed, inner and outer codes are prevented from being wrong or not in the same breadth, and raw material waste caused by wrong codes is reduced.

Description

Technical Field

[0001] The utility model relates to a laser coding machine for packaging bags, belonging to the technical field of laser coding machines. Background Art

[0002] UV inkjet printer uses UV ink for printing. UV ink is a kind of ink that needs ultraviolet light to dry, so we call it UV inkjet printer.

[0003] UV inkjet printers are a new type of coding equipment developed in the past two years. They are used in baby products such as diapers and diaper bags. Currently, diaper bags require a sales code on the front and a points code on the back. However, UV inkjet printers have low coding efficiency and high consumables consumption. They can also easily cause the sales code and points code on the front and back to be mixed up, with the codes not appearing on the same side of the bag, increasing the waste of raw materials caused by misprints. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a laser coding machine for packaging bags in view of the above-mentioned prior art, which is easy to operate and can avoid the situation where the inner and outer codes are wrongly coded or not on the same width when coding the current width of the same bag, thereby reducing the waste of raw materials caused by wrong codes.

[0005] The technical solution adopted by the present invention to solve the above problems is as follows: a laser coding machine for packaging bags, comprising a frame, a discharge shaft and a reeling shaft are provided on the frame, two laser coding mechanisms are provided between the discharge shaft and the reeling shaft, the two laser coding mechanisms are provided on the front and back sides of the film and are arranged alternately up and down, the film is unloaded through the discharge shaft, one laser coding mechanism performs a sales code on the front side of the film, and the other laser coding mechanism performs an integral code on the back side of the film, and the film with the coding on the front and back sides is reeled onto the reeling shaft; a laser coding mechanism is provided between the laser coding mechanism and the reeling shaft. There is a visual camera unit, and a coding position control unit is provided on the outlet side of the laser coding mechanism. The coding position control unit is connected to the signals of the two laser coding mechanisms, and the coding position control unit controls the two laser coding mechanisms to perform coding operations; a visual camera acquisition control unit is provided on the inlet side of the visual camera unit, and the visual camera acquisition control unit controls the visual camera unit to collect coding data; a light box is provided on the outlet side of the visual camera unit, and the light box is provided at the bottom of the sheet film. A scintillation meter is provided on the top of the frame, and the scintillation meter is provided above the sheet film, and the scintillation meter cooperates with the light box.

[0006] A material receiving platform is provided on the outlet side of the unwinding shaft.

[0007] The coding position control unit includes a first encoder meter wheel and a first color mark sensor, wherein the first encoder meter wheel is arranged on the inlet side of the first color mark sensor.

[0008] The visual camera unit includes a front visual camera and a back visual camera. The front visual camera collects the coding data on the front side of the film; the back visual camera collects the coding data on the back side of the film.

[0009] The visual camera acquisition control unit includes a second encoder meter wheel and a second color mark sensor. The second encoder meter wheel is arranged on the outlet side of the second color mark sensor, thereby controlling the two visual cameras to collect the coding data on the front and back of the film.

[0010] Any of the laser coding mechanisms includes a laser head, which is arranged on a horizontal moving unit. Vertical moving units are respectively provided at both ends of the horizontal moving unit. The horizontal moving unit drives the laser head to move horizontally, and the vertical moving unit drives the laser head to move vertically, thereby adjusting the position of the laser head.

[0011] The horizontal movement unit includes a crossbeam, a crossbeam guide rail arranged along the length of the side of the crossbeam, a crossbeam slider is clamped on the crossbeam guide rail, a crossbeam slide is set on the crossbeam slider, and the laser head is set on the crossbeam slide; the vertical movement unit includes a lifting plate, a guide block and a nut are set on the outer side of the lifting plate, a vertically arranged screw is set in the nut, and the screw is threadedly connected to the nut; a vertical rod is passed through the guide block; the lifting drive device drives the screw to rotate, so that the nut moves along the screw, driving the lifting plate to move vertically.

[0012] A focus adjustment unit is also provided between the crossbeam slide and the laser head. The focus adjustment unit includes a horizontally arranged guide rod, one end of which is fixed on the crossbeam slide, a focus adjustment block is sleeved on the guide rod, a connecting plate is provided on the focus adjustment block, and the laser head is fixed on the connecting plate.

[0013] Compared with the existing technology, the advantages of the present invention are: a laser coding machine for packaging bags, a first color mark sensor and a first encoder meter wheel control the position of the film coding; a second color mark sensor and a second encoder meter wheel control the front visual camera and the back test paper camera to collect coding data, forming a data package, which facilitates customers to realize regional sales and point code data analysis through the data package. The position of the laser head is adjusted by the horizontal moving unit and the vertical moving unit, so that the same bag can be coded at the same time, which is simple to operate, avoids the situation where the front and back sides are coded in a disordered manner or are not on the same page, and reduces the waste of raw materials caused by incorrect coding. The present application is convenient to operate, improves coding efficiency, and reduces consumables. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of a laser coding machine for packaging bags according to an embodiment of the present utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the laser coding mechanism;

[0016] In the figure, 1 is the unwinding shaft, 2 is the material receiving platform, 3 is the back-side laser coding mechanism, 4 is the main traction servo motor, 5 is the front-side laser coding mechanism, 6 is the first encoder meter wheel, 7 is the slave traction servo motor, 8 is the first color mark sensor, 9 is the front-side vision camera, 10 is the back-side vision camera, 11 is the screen flash meter, 12 is the light box, 13 is the second color mark sensor, 14 is the second encoder meter wheel, 15 is the rewinding shaft, 16 is the lifting plate, 17 is the vertical rod, 18 is the first laser head, 19 is the crossbeam, 20 is the second laser head, 21 is the focal length adjustment block, 22 is the crossbeam slide, 23 is the crossbeam guide rail, 24 is the frame, 25 is the guide rod, and 26 is the connecting plate. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 As shown, a laser coding machine for packaging bags in this embodiment includes a frame 24, on which are mounted an unwinding reel 1 and a rewinding reel 15. Two laser coding mechanisms are located between the unwinding reel 11 and the rewinding reel 15: a front-side laser coding mechanism 5 and a back-side laser coding mechanism 3. The front-side laser coding mechanism 5 is located on the front side of the film, while the back-side laser coding mechanism 3 is located on the back side of the film, with the two mechanisms arranged alternately. After the film is unwound via the unwinding reel 1, the front-side laser coding mechanism 5 applies a sales code to the front side of the film, while the back-side laser coding mechanism 3 applies a score code to the back side. The film, coded on both sides, is then reeled onto the rewinding reel 15. A visual camera unit is located on the frame 24, between the laser coding mechanism and the rewinding reel. A coding position control unit is located on the outlet side of the front-side laser coding mechanism 5. This coding position control unit is signal-connected to the two laser coding mechanisms and controls the two laser coding mechanisms to initiate coding operations. A visual camera acquisition control unit is provided on the inlet side of the visual camera unit. The control unit controls the visual camera unit to collect coding data. A light box 12 is provided on the outlet side of the visual camera unit. The light box 12 is located at the bottom of the film. A scintillation meter 11 is provided on the top of the frame 24. The scintillation meter 11 is located above the film. The scintillation meter 11 and the light box 12 cooperate to facilitate the operator to visually observe the coding status on the front and back of the film.

[0019] A material receiving platform 2 is provided on the outlet side of the unwinding shaft 1, so that the operator can observe the unwound film on the material receiving platform 2 and adjust the positions of the two laser coding mechanisms.

[0020] A main traction servo motor 4 is provided on the inlet side of the reverse laser coding mechanism 3, and a slave traction servo motor 7 is provided on the outlet side of the coding position control unit. Taper constant tension control is adopted between the main traction servo motor 4 and the slave traction servo motor 7.

[0021] The coding position control unit includes a first encoder meter wheel 6 and a first color mark sensor 8. The first encoder meter wheel 6 is located on the inlet side of the first color mark sensor 8 and is used to measure the precise length of the continuous web on the processing equipment. The first color mark sensor 8 detects the label and controls the start of the two laser coding mechanisms by controlling the length of the film and detecting the label on the film.

[0022] The visual camera unit includes a front visual camera 9 and a back visual camera 10. The front visual camera 9 is adjusted up and down and left and right by a three-dimensional moving device, and the front visual camera 9 collects the coding data on the front side of the film; the back visual camera is adjusted left and right by a moving slider mechanism, and the back visual camera 10 collects the coding data on the back side of the film.

[0023] The visual camera acquisition control unit includes a second encoder meter wheel 14 and a second color mark sensor 13. The second encoder meter wheel 14 is arranged on the outlet side of the second color mark sensor 13, thereby controlling the two visual cameras to collect the coding data on the front and back sides of the film.

[0024] like Figure 2 As shown, any laser coding mechanism includes a laser head, which is mounted on a transverse moving unit. Vertical moving units are respectively provided at both ends of the transverse moving unit. The transverse moving unit drives the laser head to move transversely, and the vertical moving unit drives the laser head to move vertically, thereby adjusting the position of the laser head and adjusting the coding position. The transverse moving unit includes a crossbeam 19, and a crossbeam guide rail 23 is provided on the side of the crossbeam 19. A crossbeam slider is clamped on the crossbeam guide rail 23, and a crossbeam slide 22 is provided on the crossbeam slider. The laser head is mounted on the crossbeam slide 22. The transverse driving device drives the crossbeam slider to move transversely along the crossbeam guide rail 23, driving the crossbeam slide 22 and the laser head to move transversely. The vertical moving unit includes a lifting plate 16, and a guide block and a nut are provided on the outer side of the lifting plate 16. A vertically arranged screw is provided in the nut, and the screw is threadedly connected to the nut. A vertical rod 17 is passed through the guide block to play a guiding role. The lifting drive rotates the screw, causing the nut to move along the screw, driving the vertical movement of the lifting plate 16, causing the crossbeam 19 and the laser head to move up and down. The position of the laser head is adjusted by the horizontal and vertical movement units, allowing simultaneous coding on the same bag and the same web. This simple operation avoids the situation where the front and back sides are mixed up or not on the same web, reducing the waste of raw materials caused by miscoding.

[0025] A focus adjustment unit is located between the crossbar slide and the laser head. This unit is used to adjust the laser head's focal length. The unit comprises a horizontally arranged guide rod 25, one end of which is fixed to the crossbar slide 22. A focus adjustment block 21 is mounted on the guide rod, and a connecting plate 26 is mounted on the focus adjustment block 21. The laser head is fixed to this connecting plate 26. A focus adjustment drive mechanism drives the adjustment block 21 along the guide rod 25, driving the connecting plate 26 and the laser head to move synchronously. This adjusts the distance between the laser head and the film, effectively adjusting the laser head's focal length.

[0026] The number of the above-mentioned laser heads is 2, and the number of crossbeam sliders is 2. The laser heads are set on the corresponding crossbeam sliders through corresponding focal length adjustment units, which is suitable for double-piece film coding.

[0027] Front laser coding and back laser coding are used to code the front and back of the film (points code and sales code). Front vision camera and back vision camera detect and collect coding data. It is suitable for single-piece or double-piece film, and can collect coding data on the front and back or single side of single-piece film, and on the front and back or single side of double-piece film.

[0028] The first color mark sensor and the first encoder meter wheel control the position of the film coding. The second color mark sensor and the second encoder meter wheel control the front-side visual camera and the back-side test paper camera to collect coding data, forming a data package, which facilitates customer data analysis of regional sales and points codes. The horizontal and vertical movement units adjust the position of the laser head to achieve simultaneous coding on the same bag. This simple operation avoids the situation where the front and back sides are mixed up or not on the same page, and reduces the waste of raw materials caused by miscoding. This application is convenient to operate, improves coding efficiency, and reduces consumables.

[0029] In addition to the above embodiments, the present invention also includes other implementation methods. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of protection of the claims of the present invention.

Claims

1. A laser coding machine for packaging bags, characterized by: The machine comprises a frame, a discharging shaft and a reeling shaft are provided on the frame, two laser coding mechanisms are provided between the discharging shaft and the reeling shaft, the two laser coding mechanisms are provided on the front and back sides of the film and the two are arranged alternately up and down, the film is discharged through the discharging shaft, one laser coding mechanism performs a sales code on the front side of the film, and the other laser coding mechanism performs an integral code on the back side of the film, and the film with the coding on both sides is reeled onto the reeling shaft; a visual camera unit is provided between the laser coding mechanism and the reeling shaft, and the laser coding mechanism outputs a sales code. A coding position control unit is provided on the mouth side, which is connected to the signals of the two laser coding mechanisms, and the coding position control unit controls the two laser coding mechanisms to perform coding operations; a visual camera acquisition control unit is provided on the inlet side of the visual camera unit, and the visual camera acquisition control unit controls the visual camera unit to collect coding data; a light box is provided on the outlet side of the visual camera unit, and the light box is provided at the bottom of the sheet film, and a screen flash meter is provided on the top of the frame, and the screen flash meter is provided above the sheet film, and the screen flash meter cooperates with the light box.

2. A laser coding machine for packaging bags according to claim 1, characterized in that: A material receiving platform is provided on the outlet side of the unwinding shaft.

3. The laser coding machine for packaging bags according to claim 1, characterized in that: The coding position control unit includes a first encoder meter wheel and a first color mark sensor, wherein the first encoder meter wheel is arranged on the inlet side of the first color mark sensor.

4. The laser coding machine for packaging bags according to claim 1, characterized in that: The visual camera unit includes a front visual camera and a back visual camera. The front visual camera collects the coding data on the front side of the film; the back visual camera collects the coding data on the back side of the film.

5. The laser coding machine for packaging bags according to claim 1, characterized in that: The visual camera acquisition control unit includes a second encoder meter wheel and a second color mark sensor. The second encoder meter wheel is arranged on the outlet side of the second color mark sensor, thereby controlling the two visual cameras to collect the coding data on the front and back of the film.

6. The laser coding machine for packaging bags according to claim 1, characterized in that: Any of the laser coding mechanisms includes a laser head, which is arranged on a horizontal moving unit. Vertical moving units are respectively provided at both ends of the horizontal moving unit. The horizontal moving unit drives the laser head to move horizontally, and the vertical moving unit drives the laser head to move vertically, thereby adjusting the position of the laser head.

7. The laser coding machine for packaging bags according to claim 6, characterized in that: The horizontal movement unit includes a crossbeam, a crossbeam guide rail arranged along the length of the side of the crossbeam, a crossbeam slider is clamped on the crossbeam guide rail, a crossbeam slide is set on the crossbeam slider, and the laser head is set on the crossbeam slide; the vertical movement unit includes a lifting plate, a guide block and a nut are set on the outer side of the lifting plate, a vertically arranged screw is set in the nut, and the screw is threadedly connected to the nut; a vertical rod is passed through the guide block; the lifting drive device drives the screw to rotate, so that the nut moves along the screw, driving the lifting plate to move vertically.

8. The laser coding machine for packaging bags according to claim 7, characterized in that: A focus adjustment unit is also provided between the crossbeam slide and the laser head. The focus adjustment unit includes a horizontally arranged guide rod, one end of which is fixed on the crossbeam slide, a focus adjustment block is sleeved on the guide rod, a connecting plate is provided on the focus adjustment block, and the laser head is fixed on the connecting plate.

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