Paper feeding mechanism of laser labeling machine

Abstract

The utility model discloses a paper feeding mechanism of a laser labeling machine. The paper feeding mechanism comprises a first fixing frame, a first rotating shaft, a first limiting plate, a first positioning shaft, a sealing cover, a tensioning mechanism and a paper feeding mechanism. Wherein one end of the first rotating shaft is rotatably connected with the first fixing frame; the first limiting plate is fixedly connected with the first rotating shaft; one end of the first positioning shaft is fixedly connected with the first limiting plate, the first positioning shaft is a hollow shaft, and a plurality of first positioning grooves are formed in the first positioning shaft in the circumferential direction; the sealing cover is connected with the other end of the first positioning shaft; the tensioning mechanism is movably arranged in the first positioning shaft, and the output end of the tensioning mechanism can protrude out of the first positioning groove and is used for fixing the paper roll; the paper feeding mechanism and the first fixing frame are arranged adjacently, and the paper feeding mechanism is used for gradually feeding out the flexible paper on the paper roll. The paper roll limiting device can adapt to paper rolls of different models, does not need to use two limiting discs, and is convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of laser marking machines, in particular to a paper feeding mechanism of a laser labeling machine. Background Art

[0002] 3M flexible paper labels have been widely used in the automotive parts, automobile manufacturing, instrumentation, electronic appliances and other industries. According to relevant statistics, a car uses more than 30 3M laser label papers. The laser marking process requires the use of laser etching on the paper label. It can replace the original metal nameplate and has the characteristics of anti-tampering, cost saving, flexible engraving, and no inventory.

[0003] In the prior art, the sizes of car labels of different brands or types are different, so the inner diameters of the core shafts of the flexible paper rolls are also different. In response to this, the paper roll mounting shafts of the paper feeding mechanisms are mostly customized in size and can only be customized to a specific size according to requirements. The paper rolls are limited by the limit plates on both sides, resulting in inconvenient installation and a narrow range of applications. Summary of the Invention

[0004] According to an embodiment of the present invention, a paper feeding mechanism of a laser labeling machine is provided, comprising:

[0005] a first fixing frame;

[0006] a first rotating shaft, one end of which is rotatably connected to the first fixing frame;

[0007] a first limiting plate, the first limiting plate being fixedly connected to the first rotating shaft;

[0008] A first positioning shaft, one end of which is fixedly connected to the first limiting plate, the first positioning shaft being a hollow shaft, and having a plurality of first positioning grooves arranged along the circumferential direction of the first positioning shaft;

[0009] a sealing cover connected to the other end of the first positioning shaft;

[0010] A tensioning mechanism, which is movably disposed in the first positioning shaft, and whose output end can protrude from the first positioning groove for fixing the paper roll;

[0011] The paper feeding mechanism is arranged adjacent to the first fixing frame and is used for gradually feeding out the flexible paper on the paper roll.

[0012] Furthermore, the tensioning mechanism comprises: a driving shaft, a driving rod, a hand wheel, a first spring and a plurality of tensioning blocks;

[0013] The driving shaft is provided with a second positioning groove corresponding to the first positioning groove, and the second positioning groove is provided with a first positioning pin corresponding to the tensioning block;

[0014] The drive shaft is sleeved on the drive rod, one end of the drive shaft is threadedly connected to one end of the drive rod, and a gap is set between the other end and the drive rod;

[0015] The first spring is arranged in the gap, and one end of the spring is connected to the drive shaft;

[0016] The hand wheel is fixedly connected to the other end of the driving rod, and rotating the hand wheel can drive the driving shaft to move linearly in the first positioning axis;

[0017] The tensioning block is slidingly arranged in the first positioning groove and the second positioning groove. The tensioning block is provided with a first sliding groove, which is slidingly connected to the first positioning pin. The driving shaft can drive the tensioning block to move in the first positioning groove and the second positioning groove through the first positioning pin.

[0018] Furthermore, anti-slip teeth are provided on the tensioning block.

[0019] Furthermore, it also includes: a pair of paper guide rollers, one end of the pair of paper guide rollers is connected to the first fixing frame.

[0020] Furthermore, the paper feeding mechanism comprises: a feeding frame, a pair of first paper pressing rollers, a driving motor, a driving roller and a second paper pressing roller;

[0021] A pair of first paper pressing rollers are movably arranged at one end of the conveying frame, and the distance between the pair of first paper pressing rollers is adjustable;

[0022] The driving roller and the second pressing roller are arranged at the other end of the conveying frame and arranged up and down, and the distance between the driving roller and the second pressing roller is adjustable;

[0023] The output end of the driving motor is connected to one end of the driving roller and can drive the driving roller to rotate.

[0024] Furthermore, the invention further comprises: a position sensor, which is arranged on the conveying rack and is used to detect whether there is flexible paper on the conveying rack.

[0025] Furthermore, the cover is fixedly connected to the other end of the first positioning shaft by means of screws.

[0026] The paper feeding mechanism of the laser label machine according to the embodiment of the utility model can adapt to different types of paper rolls, does not require the use of two limit plates, and is easy to install.

[0027] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram according to an embodiment of the present utility model;

[0029] Figure 2 for Figure 1The main view;

[0030] Figure 3 for Figure 2 AA sectional view;

[0031] Figure 4 Schematic diagram of the structure among the first positioning shaft, the driving shaft, the driving rod and the tensioning block according to this embodiment. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to further illustrate the present invention.

[0033] First, combine Figures 1 to 4 The paper feeding mechanism of the laser label machine according to the embodiment of the present invention is described, which is used in a laser marking machine and has a wide range of application scenarios.

[0034] like Figures 1 to 4 As shown, the paper feeding mechanism of the laser label machine of the embodiment of the utility model includes:

[0035] First fixing frame 1;

[0036] A first rotating shaft 2, one end of which is rotatably connected to the first fixing frame 1;

[0037] A first limiting plate 3, the first limiting plate 3 is fixedly connected to the first rotating shaft 2;

[0038] A first positioning shaft 4, one end of which is fixedly connected to the first limiting plate 3, the first positioning shaft 4 is a hollow shaft, and the first positioning shaft 4 is provided with a plurality of first positioning grooves 41 along the circumferential direction;

[0039] The cover 5 is connected to the other end of the first positioning shaft 4;

[0040] The tensioning mechanism 6 is movably disposed in the first positioning shaft 4, and its output end can protrude from the first positioning groove 41 for fixing the paper roll 9;

[0041] The paper feeding mechanism 8 is arranged adjacent to the first fixing frame 1 and is used to gradually feed out the flexible paper on the paper roll 9.

[0042] Further, if Figures 1 to 4 As shown, in this embodiment, the tensioning mechanism 6 includes: a driving shaft 61, a driving rod 62, a hand wheel 63, a first spring 64 and a plurality of tensioning blocks 65;

[0043] The driving shaft 61 is provided with a second positioning groove 611 corresponding to the first positioning groove 41 , and a first positioning pin 612 corresponding to the tensioning block 65 is provided in the second positioning groove 611 ;

[0044] The drive shaft 61 is sleeved on the drive rod 62. One end of the drive shaft 61 is threadedly connected to one end of the drive rod 62, and a gap is set between the other end of the drive shaft 61 and the drive rod 62.

[0045] The first spring 64 is arranged in the gap, with one end fixedly connected to the drive shaft 61 and the other end fixedly connected to the cover 5;

[0046] The hand wheel 63 is fixedly connected to the other end of the driving rod 62. When the hand wheel 63 is turned, the driving rod 62 rotates along with the hand wheel 63, and cooperates with the first spring 64 to drive the driving shaft 61 to move linearly within the first positioning shaft 4.

[0047] The tensioning block 65 is slidably arranged in the first positioning groove 41 and the second positioning groove 611. A first sliding groove 651 is provided on the tensioning block 65. The first sliding groove 651 is slidably connected with the first positioning pin 612. The lateral movement of the driving shaft 61 drives the first positioning pin 612 to move synchronously. The lateral movement of the first positioning pin 612 can drive the tensioning block 65 to move up and down in the first positioning groove 41 and the second positioning groove 611.

[0048] Further, if Figure 3 As shown, in this embodiment, the tensioning block 65 is provided with anti-slip teeth for increasing the friction force when in contact with the flexible paper roll 9 .

[0049] Further, if Figures 1 and 2 As shown, in this embodiment, it further includes: a pair of paper guide rollers 7, one end of the pair of paper guide rollers 7 is connected to the first fixing frame 1.

[0050] Further, if Figure 1 As shown, in this embodiment, the paper feeding mechanism 8 includes: a feeding frame 81, a pair of first paper pressing rollers 82, a driving motor 83, a driving roller 84 and a second paper pressing roller 85;

[0051] A pair of first paper pressing rollers 82 are movably arranged at one end of the conveying frame 81. The distance between the pair of first paper pressing rollers 82 is adjustable to accommodate flexible paper of different thicknesses.

[0052] The driving roller 84 and the second pressing roller 85 are provided at the other end of the conveying frame 81 and arranged up and down. The distance between the driving roller 84 and the second pressing roller 85 is adjustable to accommodate flexible paper of different thicknesses.

[0053] The output end of the driving motor 83 is connected to one end of the driving roller 84 and can drive the driving roller 84 to rotate.

[0054] Furthermore, in this embodiment, it further comprises: a position sensor (not shown in the figure), which is arranged on the conveying frame 81 and is used to detect whether there is flexible paper on the conveying frame 81.

[0055] Further, if Figure 1 、3 As shown, in this embodiment, the cover 5 is fixedly connected to the other end of the first positioning shaft 4 by screws.

[0056] Working Principle: Before the flexible paper roll 9 is inserted, the tensioning block 65 is in a retracted state. The flexible paper roll 9 is placed on the first positioning shaft 4, and the handwheel 63 is rotated, driving the drive shaft 61 outward. The first positioning pin 612 on the drive shaft 61 drives the tensioning block 65 through the first chute 651, causing it to protrude from the first positioning slot 41 until tension is established between the tensioning block 65 and the flexible paper roll shaft. Next, one end of the flexible paper is passed through a pair of first paper pressing rollers 82, drive rollers 84, and second paper pressing rollers 85, causing the second paper pressing rollers 85 to compress the paper. The drive motor 83 drives the drive rollers 84 to rotate, which in turn propels the paper forward to the laser marking location.

[0057] Above, refer to Figures 1 to 4 The paper feeding mechanism of the laser label machine according to the embodiment of the present invention is described, which can adapt to different types of paper rolls 9, does not require the use of two limit plates, and is easy to install.

[0058] It should be noted that, in this specification, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the elements.

[0059] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. After reading the above description, various modifications and alternatives to the present invention will be readily apparent to those skilled in the art. Therefore, the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A paper feeding mechanism of a laser label machine, characterized in that: Include: a first fixing frame; a first rotating shaft, one end of which is rotatably connected to the first fixing frame; a first limiting plate, the first limiting plate being fixedly connected to the first rotating shaft; a first positioning shaft, one end of which is fixedly connected to the first limiting plate, the first positioning shaft being a hollow shaft and having a plurality of first positioning grooves arranged along a circumferential direction thereof; a sealing cover connected to the other end of the first positioning shaft; a tensioning mechanism, the tensioning mechanism being movably disposed within the first positioning shaft, with an output end thereof being capable of protruding out of the first positioning slot for securing the paper roll; A paper feeding mechanism is arranged adjacent to the first fixing frame and is used for gradually feeding out the flexible paper on the paper roll.

2. The paper feeding mechanism of the laser label machine according to claim 1, characterized in that: The tensioning mechanism comprises: a driving shaft, a driving rod, a hand wheel, a first spring and a plurality of tensioning blocks; The driving shaft is provided with a second positioning groove corresponding to the first positioning groove, and the second positioning groove is provided with a first positioning pin corresponding to the tensioning block; The drive shaft is sleeved on the drive rod, one end of the drive shaft is threadedly connected to one end of the drive rod, and a gap is set between the other end of the drive shaft and the drive rod; The first spring is arranged in the gap, and one end of the first spring is connected to the drive shaft; The hand wheel is fixedly connected to the other end of the driving rod, and rotating the hand wheel can drive the driving shaft to move linearly in the first positioning shaft; The tensioning block is slidably arranged in the first positioning groove and the second positioning groove. A first sliding groove is provided on the tensioning block. The first sliding groove is slidably connected to the first positioning pin. The driving shaft can drive the tensioning block to move in the first positioning groove and the second positioning groove through the first positioning pin.

3. The paper feeding mechanism of the laser label machine according to claim 2, characterized in that: The tensioning block is provided with anti-slip teeth.

4. The paper feeding mechanism of the laser label machine according to claim 1, characterized in that: It also includes: a pair of paper guide rollers, one end of the pair of paper guide rollers is connected to the first fixing frame.

5. The paper feeding mechanism of the laser label machine according to claim 1, characterized in that: The paper feeding mechanism comprises: a feeding frame, a pair of first paper pressing rollers, a driving motor, a driving roller and a second paper pressing roller; The pair of first paper pressing rollers are movably arranged at one end of the conveying frame, and the distance between the pair of first paper pressing rollers is adjustable; The driving roller and the second pressing roller are provided at the other end of the conveying frame and arranged up and down, and the distance between the driving roller and the second pressing roller is adjustable; The output end of the driving motor is connected to one end of the driving roller and can drive the driving roller to rotate.

6. The paper feeding mechanism of the laser label machine according to claim 5, characterized in that: The invention also comprises: a position sensor, which is arranged on the conveying rack and is used for detecting whether there is flexible paper on the conveying rack.

7. The paper feeding mechanism of the laser label machine according to claim 1, characterized in that: The sealing cover is fixedly connected to the other end of the first positioning shaft by screws.

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