Label printing device

Abstract

The utility model discloses a label printing device which comprises a machine base, a discharging roller is rotationally arranged on one side of the top end of the machine base, a receiving roller is rotationally arranged on the other side of the top end of the machine base, a printing machine and a drying box are arranged at the top end of the machine base, the drying box is arranged on the outlet side of the printing machine, and a drying mechanism is arranged in the drying box. The printing machine and the drying box are arranged between the discharging roller and the receiving roller; a plurality of sets of material guiding mechanisms are arranged between the discharging roller and the printing machine and between the drying box and the material collecting roller, each material guiding mechanism comprises a support and two material guiding rollers, the supports are arranged at the top end of the machine base, and the two material guiding rollers are arranged on the supports in an up-down rotating mode. According to the label paper conveying device, conveyed label paper can be kept in a tensioning state and kept straight, and good printing quality can be kept.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, specifically to a label printing device. Background Technology

[0002] A label is a brief sign used to indicate the name, weight, volume, and purpose of an item. There are traditional printed labels and modern barcode printed labels. Traditional printed labels use a printing device to print the above information onto the label.

[0003] In existing printing equipment, label paper is fed into the printing press by the output roller for printing, and then wound up by the take-up roller after printing. To maintain the tension of the label paper during printing and ensure printing quality, the label paper between the output roller and the take-up roller must maintain a certain tension. However, in the later stages of printing, as the amount of label paper on the output roller gradually decreases, the label paper at that point begins to loosen and cannot maintain tension, which can easily lead to printing deviations and affect printing quality. Utility Model Content

[0004] The purpose of this invention is to provide a label printing device to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a label printing device, including a base, a discharge roller rotatably disposed on one side of the top of the base, a take-up roller rotatably disposed on the other side of the top of the base, a printing machine and a drying chamber disposed at the top of the base, the drying chamber being disposed at the outlet side of the printing machine, a drying mechanism being disposed inside the drying chamber, and the printing machine and the drying chamber being disposed between the discharge roller and the take-up roller; multiple sets of guiding mechanisms are provided between the discharge roller and the printing machine and between the drying chamber and the take-up roller, the guiding mechanism including a bracket and two guiding rollers, the bracket being disposed at the top of the base, and the two guiding rollers being rotatably disposed on the bracket.

[0006] As a preferred embodiment of this technical solution, the material guiding mechanism further includes a driving mechanism, which drives the material guiding rollers to slide up and down on the support to adjust the distance between the two material guiding rollers.

[0007] As a preferred embodiment of this technical solution, the driving mechanism includes a telescopic device, a driving plate, and a connecting plate. The telescopic device is located at the top of the support or the top of the machine base. The output end of the telescopic device is connected to the driving plate. The axis of the length of the driving plate is parallel to the axis of the length of the guide roller. Connecting plates are provided at both ends of the driving plate, and the connecting plates are connected to the roller shaft of the guide roller.

[0008] As a preferred embodiment of this technical solution, the printing press is provided with an exhaust mechanism for cleaning the surface of the label paper on the inlet side. The exhaust mechanism includes an exhaust hood, an air duct, a collection box and an exhaust fan connected in sequence. The exhaust hood is located above the conveyed label paper, and a filter screen I is installed inside the collection box.

[0009] As a preferred embodiment of this technical solution, the drying mechanism includes a wind box, an axial flow fan, and a heating tube. The wind box has openings at the top and bottom and is connected to the top wall inside the drying chamber. The top wall of the drying chamber inside the wind box has an opening, and a filter screen II is installed inside the opening. The axial flow fan and the heating tube are arranged vertically inside the wind box. The air inlet of the axial flow fan faces the filter screen II, and the air outlet of the axial flow fan faces the heating tube.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model sets up multiple sets of guiding mechanisms, each including a support and two guiding rollers. The two guiding rollers are mounted on the support and rotate up and down. When the label paper is conveyed, it passes through the gap between the two guiding rollers. The friction between the two guiding rollers and the label paper keeps the conveyed label paper taut and straight as the label paper gradually decreases on the discharge roller, which is beneficial for maintaining good printing quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the material guiding mechanism of this utility model.

[0013] Figure 3 This is a schematic diagram of the drying mechanism of this utility model.

[0014] Figure 4 This is a schematic diagram of the ventilation mechanism of this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This utility model discloses a label printing device, including a base 1, a discharge roller 2 rotatably mounted on one side of the top of the base 1, a take-up roller 3 rotatably mounted on the other side of the top of the base 1, a printing machine 4 and a drying chamber 5 mounted on the top of the base 1, the drying chamber 5 being located at the outlet side of the printing machine 4, and a drying mechanism being installed inside the drying chamber 5, the printing machine 4 and the drying chamber 5 being located between the discharge roller 2 and the take-up roller 3; multiple sets of guiding mechanisms 6 are provided between the discharge roller 2 and the printing machine 4 and between the drying chamber 5 and the take-up roller 3, the guiding mechanism 6 including a bracket 61 and two guiding rollers 63, the bracket 61 being located on the top of the base 1, and the two guiding rollers 63 being rotatably mounted on the bracket 61.

[0017] In a specific implementation of this utility model, the discharge roller 2 and the take-up roller 3 are fixed on the machine base 1 by a support frame. The discharge roller 2 and the take-up roller 3 rotate on the support frame. The discharge roller 2 and the take-up roller 3 are equipped with drivers to drive the discharge roller 2 and the take-up roller 3 to rotate. The printing machine 4 adopts the equipment of the prior art. The material guiding mechanism 6 also includes a driving mechanism. The driving mechanism drives the guide roller 63 to slide up and down on the bracket 61 to realize the adjustment of the distance between the two guide rollers 63. The drive mechanism includes a telescopic device 62, a drive plate 64, and a connecting plate 65. The telescopic device 62 is located at the top of the bracket 61 or the top of the base 1, meaning that the telescopic device 62 can drive one of the guide rollers 63. The bracket 61 is inverted U-shaped, and the two ends of the guide roller 63 slide on both sides of the bracket 61 through bearing seats. The output end of the telescopic device 62 is connected to the drive plate 64. The axis of the drive plate 64 is parallel to the axis of the guide roller 63. The two ends of the drive plate 64 are provided with connecting plates 65, which are connected to the roller shaft of the guide roller 63. The drive plate 64 and the connecting plates 65 at both ends also form an inverted U-shape. The telescopic device 62 drives the guide roller 63 to slide up and down on the bracket 61. The guide rollers 63 of the multiple sets of guide mechanisms 6 are at different heights on the bracket 61 so that the conveyed label paper is in a certain tension state.

[0018] In a specific implementation of this utility model, the printing press 4 is provided with an exhaust mechanism 7 for cleaning the surface of the label paper on the inlet side. The exhaust mechanism 7 includes an exhaust hood 71, an air duct 72, a collection box 73, and an exhaust fan 74 connected in sequence. The exhaust hood 71 is located above the conveyed label paper and is used to suck up impurities from the surface of the label paper. A filter screen I 75 is installed inside the collection box 73. The drying mechanism includes a wind box 8, an axial flow fan 9, and a heating tube 10. The upper and lower ends of the wind box 8 are open and connected to the top wall inside the drying box 5. The top wall of the drying box 5 inside the wind box 8 has an opening, and a filter screen II 51 is installed inside the opening. The axial flow fan 9 and the heating tube 10 are arranged vertically inside the wind box 8. The air inlet of the axial flow fan 9 faces the filter screen II 51, and the air outlet of the axial flow fan 9 faces the heating tube 10.

[0019] In use, the label paper starts from the output roller, passes between the two guide rollers of the guiding mechanism, and enters the printing press for printing. After printing, it goes from the printing press to the drying chamber for drying. Then, it passes through the gap between the two guide rollers of the guiding mechanism again to reach the take-up roller for winding. When there is a lot of label paper on the output roller, the gap between the two guide rollers can be larger. The label paper is only tensioned by a single guide roller of the guiding mechanism. When the amount of label paper on the output roller decreases to a certain extent, the gap between the two guide rollers is adjusted. The friction generated by the two guide rollers on the label paper can keep the label paper taut, which is conducive to maintaining good printing quality.

[0020] Finally, it should be noted that the above-described embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A label printing apparatus, comprising a base, wherein a discharge roller is rotatably disposed on one side of the top of the base, and a take-up roller is rotatably disposed on the other side of the top of the base, characterized in that: The top of the machine base is equipped with a printing press and a drying chamber. The drying chamber is located on the outlet side of the printing press and a drying mechanism is installed inside the drying chamber. The printing press and the drying chamber are located between the discharge roller and the take-up roller. Multiple sets of material guiding mechanisms are provided between the discharge roller and the printing press and between the drying chamber and the take-up roller. The material guiding mechanism includes a bracket and two material guiding rollers. The bracket is located at the top of the machine base, and the two material guiding rollers are mounted on the bracket and rotate up and down.

2. The label printing apparatus according to claim 1, characterized in that: The material guiding mechanism also includes a driving mechanism, which drives the material guiding rollers to slide up and down on the support to adjust the distance between the two material guiding rollers.

3. The label printing apparatus according to claim 2, characterized in that: The drive mechanism includes a telescopic device, a drive plate, and a connecting plate. The telescopic device is located at the top of the support or the top of the machine base. The output end of the telescopic device is connected to the drive plate. The axis of the drive plate is parallel to the axis of the guide roller. Connecting plates are provided at both ends of the drive plate. The connecting plates are connected to the roller shaft of the guide roller.

4. The label printing apparatus according to claim 1, characterized in that: The printing press is equipped with an exhaust mechanism on the inlet side for cleaning the surface of the label paper. The exhaust mechanism includes an exhaust hood, an air duct, a collection box and an exhaust fan connected in sequence. The exhaust hood is located above the conveyed label paper, and a filter screen I is installed in the collection box.

5. The label printing apparatus according to claim 1, characterized in that: The drying mechanism includes a wind box, an axial flow fan, and a heating tube. The wind box has openings at the top and bottom and is connected to the top wall inside the drying chamber. The top wall inside the wind box has an opening, and a filter screen II is installed inside the opening. The axial flow fan and the heating tube are positioned vertically inside the wind box. The air inlet of the axial flow fan faces the filter screen II, and the air outlet of the axial flow fan faces the heating tube.

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