A highly efficient self-adhesive label waste discharge mechanism

Abstract

The utility model discloses a high-efficiency waste discharge mechanism for self-adhesive labels, comprising a waste active roller, a die-cutting roller, a die-cutting bottom roller, a separation roller, a tension sensing roller, a waste roll roller, a paper active roller, and a paper pressing roller; there is a certain angle between the waste active roller and the axis of the separation roller; the die-cutting bottom roller is arranged below the die-cutting roller, the paper active roller is arranged below the paper pressing roller, and the paper passes through the die-cutting roller and the die-cutting bottom roller, the waste active roller, the paper pressing roller, and the paper active roller from left to right in sequence; the separation roller is located at the upper left of the waste active roller, the tension sensing roller is located at the upper right of the waste active roller, and the waste roll roller is located at the upper right of the tension sensing roller, and the die-cutting waste discharge passes through the waste active roller, the separation roller, the tension sensing roller, and the waste roll roller in sequence from bottom to top. The advantage is that by changing the angle of the separation roller, the effective width during peeling is changed without changing the waste discharge width, and the maximum pulling force borne by the waste discharge is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to a high-efficiency waste discharge mechanism for self-adhesive labels. Background Art

[0002] In the existing label production technology, the die-cutting waste discharge process of labels is an indispensable process. The waste collected after die-cutting is currently collected by curling, which is called the waste rolling process. The waste rolling process is to separate the die-cutting waste from the finished product through the active roller of the waste rolling mechanism after die-cutting on the label material, and then roll the separated waste into a roll through the winding roller with constant tension.

[0003] At present, a large number of self-adhesive thermal labels are used in express logistics documents. The labels are made of two layers of paper. The cotton layer is the carrier of printed information, and the bottom layer is a glassine backing paper that isolates the self-adhesive label. In the future, to adapt to printer printing, there will be a 3 mm gap between the top and bottom labels. In order to make it easier for personnel to peel off the bottom layer and stick it on objects during use, the label surface paper will be shortened by 1 to 2 mm on the left and right widths. In order to meet the above equipment and personnel requirements in use, the unnecessary parts of the label surface paper will be cut and separated and removed through die-cutting and waste discharge processes during the production process.

[0004] In the current die-cutting and waste discharge process of self-adhesive label production, since express logistics labels are all rectangular, and in order to improve efficiency, they are neatly arranged in a matrix manner within the width of the base paper during production, eventually forming a Figure 2 The production is carried out in the form of the layout shown. In this form, the pulling force on the waste discharge is not constant. The pulling force on the waste discharge comes from the curling pulling force of the curling mechanism at the end of the waste discharge mechanism, and the separation force generated by the adhesive force between the surface layer and the bottom layer when the end waste discharge is separated from the bottom paper. And now all active and passive rollers with various functions on all continuous paper printing equipment are parallel to the paper surface. This is to ensure that the paper is subjected to synchronous and uniform force during printing processing, so as to ensure uniform printing and coloring of the paper surface and stable paper feeding. This is the case with the printing process, and the same is true for the die-cutting waste discharge process.

[0005] When the waste discharge is synchronized with the printing press at a constant speed, F pull = F adhesion; F adhesion = k peel strength * width. Figure 2, assuming that the width of the waste discharge edge is a and the width of the label is b, when it is in position 1, F pull = k peel strength * (a + a + a + a); when it is in position 2, F pull = k peel strength * (a + a + a + a + b + b + b). In actual production, the length of the waste discharge at position 2 is very short, generally only 3mm, so in actual high-speed production, the time at position 2 is very short, so the change in tension is a pulse-like fluctuation. The faster the production speed, the faster the frequency of tension jumps. Secondly, in order to control costs, manufacturers make the width of the waste discharge edge very small, generally around 2 to 3 mm, while the width of the label product is between 75 and 100 mm, so F pull varies greatly between positions 1 and 2. Generally, F pull at position 2 is more than 10 times that of position 1.

[0006] In summary, under the original die-cutting and waste discharge process for the production of self-adhesive labels, the F-pull value fluctuates greatly due to the different positions of the waste discharge edge separation, and as the production machine speed increases, the frequency of the fluctuations will become faster and faster, eventually causing the waste discharge edge material itself to be unable to withstand the tensile force and break, thereby causing shutdown. The patent "An efficient self-adhesive label die-cutting and waste discharge process (ZL202010524539.2)" provides an efficient waste discharge production process for express logistics self-adhesive labels, which changes the effective width during peeling by utilizing the change in the angle of the waste discharge separation roller without changing the width of the waste discharge edge, thereby reducing the maximum tensile force on the waste discharge material and making the tensile force fluctuation on the waste discharge material more uniform, thereby greatly improving the production speed and efficiency of the die-cutting and waste discharge process. However, there is currently no specific equipment that can implement this process flow, and the above patent does not provide corresponding equipment for implementing this process flow. Utility Model Content

[0007] The purpose of the utility model is to provide a highly efficient self-adhesive label waste discharge mechanism, thereby solving the above-mentioned problems existing in the prior art.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0009] An efficient waste discharge mechanism for self-adhesive labels, comprising a waste active roller arranged obliquely, and a die-cutting roller, a die-cutting bottom roller, a separation roller, a tension sensing roller, a waste winding roller, a paper active roller, and a paper pressing roller arranged parallel to each other; a certain angle exists between the axis of the waste active roller and the axis of the separation roller;

[0010] The die-cutting bottom roller is arranged below the die-cutting roller, the paper driving roller is arranged below the paper pressing roller, and the paper passes through the die-cutting roller and the die-cutting bottom roller, the waste driving roller, the paper pressing roller and the paper driving roller from left to right in sequence; the separation roller is located at the upper left of the waste driving roller, the tension sensing roller is located at the upper right of the waste driving roller, and the waste winding roller is located at the upper right of the tension sensing roller, and the die-cutting waste discharge passes through the waste driving roller, the separation roller, the tension sensing roller and the waste winding roller in sequence from bottom to top.

[0011] Preferably, the angle is 30 degrees.

[0012] Preferably, the mechanism further comprises a separation bottom roller, and the separation bottom roller is located below the separation roller.

[0013] Preferably, the paper passes between the die-cutting roller and the die-cutting bottom roller, passes through the bottom side in turn around the separation bottom roller and the waste active roller, and then passes between the paper pressing roller and the paper active roller;

[0014] The die-cutting waste discharge bypasses the waste active roller from the right side, passes between the separation roller and the separation bottom roller, bypasses the separation roller via the left side, bypasses the tension sensing roller via the right side, and bypasses the waste winding roller via the left side.

[0015] Preferably, the die-cutting roller is a magnetic die-cutting roller; and the die-cutting bottom roller is a smooth metal roller.

[0016] Preferably, the separation roller is a smooth metal roller.

[0017] Preferably, the waste active roller is a steel roller with anti-glue treatment on the surface.

[0018] Preferably, the tension sensing roller is a floating roller that can move freely up and down, and can control the speed of rotation of the waste winding roller according to the rotation angle generated by its up and down floating position.

[0019] Preferably, the tension sensing roller is a lightweight plastic roller.

[0020] Preferably, the paper driving roller is a smooth metal roller, and the paper pressing roller is a rubber roller.

[0021] The beneficial effects of the utility model are: by changing the angle of the separation roller, the effective width during stripping is changed without changing the waste discharge width, thereby reducing the maximum tensile force borne by the waste discharge, and also making the tensile force fluctuation borne by the waste discharge more uniform. At the same time, the waste can be restored to the allowable direction horizontal with other rollers of the equipment through the subsequent waste active roller in the first time, ensuring that the waste is evenly stressed on the left and right. The tensile force borne is evenly distributed to the entire waste discharge edge. The reduction of the maximum tensile force and the more uniform fluctuation can ensure that the waste discharge is less likely to be broken, greatly improving the production speed and efficiency of the die-cutting waste discharge process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the waste discharge mechanism in the embodiment of the utility model;

[0023] Figure 2 It is a layout diagram of express logistics labels.

[0024] In the figure: 1. Die-cutting roller; 2. Die-cutting bottom roller; 3. Separation roller; 4. Waste active roller; 5. Tension sensing roller; 6. Waste winding roller; 7. Paper active roller; 8. Paper pressing roller; 9. Paper; 10. Die-cutting waste discharge; 11. Separation bottom roller. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.

[0026] like Figure 1 As shown, in this embodiment, a high-efficiency waste discharge mechanism for self-adhesive labels is provided, comprising a waste active roller 4 arranged obliquely, and a die-cutting roller 1, a die-cutting bottom roller 2, a separation roller 3, a tension sensing roller 5, a waste winding roller 6, a paper active roller 7, and a paper pressing roller 8 arranged in parallel with each other; there is a certain angle between the waste active roller 4 and the axis of the separation roller 3 (the angle is about 30 degrees);

[0027] The die-cutting bottom roller 2 is arranged below the die-cutting roller 1, the paper driving roller 7 is arranged below the paper pressing roller 8, and the paper 9 passes through the die-cutting roller 1 and the die-cutting bottom roller 2, the waste driving roller 4, the paper pressing roller 8 and the paper driving roller 7 from left to right in sequence; the separation roller 3 is located at the upper left of the waste driving roller 4, the tension sensing roller 5 is located at the upper right of the waste driving roller 4, and the waste winding roller 6 is located at the upper right of the tension sensing roller 5, and the die-cutting waste discharge 10 passes through the waste driving roller 4, the separation roller 3, the tension sensing roller 5 and the waste winding roller 6 from bottom to top in sequence.

[0028] In this embodiment, the mechanism further includes a separation bottom roller 11, which is located below the separation roller 3. The paper 9 passes between the die-cutting roller 1 and the die-cutting bottom roller 2, bypasses the separation bottom roller 11 and the waste active roller 4 in sequence from the lower side, and then passes between the paper pressing roller 8 and the paper active roller 7. The die-cutting waste discharge 10 bypasses the waste active roller 4 from the right side, passes between the separation roller 3 and the separation bottom roller 11, bypasses the separation roller 3 from the left side, bypasses the tension sensing roller 5 from the right side, and bypasses the waste winding roller 6 from the left side.

[0029] In this embodiment, the die-cutting roller 1 is a magnetic die-cutting roller 1; the die-cutting bottom roller 2 is a smooth metal roller; the separation roller 3 is a smooth metal roller; and the waste active roller 4 is a steel roller with anti-glue treatment on the surface.

[0030] In this embodiment, the tension sensing roller 5 is a floating roller that can freely move up and down, and can control the speed of the waste winding roller 6 according to the rotation angle generated by its up and down floating position. The tension sensing roller 5 is a light plastic roller.

[0031] In this embodiment, the paper driving roller 7 is a smooth metal roller, and the paper pressing roller 8 is a rubber roller. The paper pressing roller 8 presses the paper tightly against the paper driving roller 7.

[0032] In this embodiment, the patent "A high-efficiency self-adhesive label die-cutting waste discharge process (ZL202010524539.2)" can be seen that the final relevant parameters of the waste discharge F pull are k peel strength and L peel width, among which k peel strength is related to the viscosity of the glue and the raw materials of the adhesive paper 9, all of which are assumed to be constants here, so if you want to change F pull, you can only change the peel width L. Therefore, in the solution of the utility model, the separation roller 3 is no longer perpendicular to the paper surface, but is offset to the left and right at an angle, so that the peel width L can be changed without changing the specifications of the product, and the effective width during peeling can be changed by changing the separation angle between the die-cutting waste discharge 10 and the self-adhesive base paper without changing the waste discharge edge width, thereby reducing the maximum tensile force borne by the die-cutting waste discharge 10, and making the tensile force fluctuation borne by the die-cutting waste discharge 10 more uniform, greatly improving the production speed of the self-adhesive label waste discharge process, and the waste discharge process is the bottleneck of the production speed of the entire self-adhesive label printing equipment. At the same time, the running direction of the die-cutting waste discharge 10 is adjusted back to the normal direction through the waste active roller 4 in the first time, reducing the difficulty of subsequent equipment modification.

[0033] By adopting the above technical solution disclosed in the utility model, the following beneficial effects are obtained:

[0034] The utility model provides a highly efficient waste discharge mechanism for self-adhesive labels. By changing the angle of the separation roller, the effective width during peeling is changed without changing the waste discharge width, thereby reducing the maximum pulling force borne by the waste discharge, and can also make the fluctuation of the pulling force borne by the waste discharge more uniform. At the same time, the waste can be restored to the allowable direction horizontal with other rollers of the equipment through the subsequent waste active roller in the first time, ensuring that the waste is evenly stressed on the left and right. The pulling force borne is evenly distributed to the entire waste discharge edge. The reduction in the maximum pulling force and the more uniform fluctuation can ensure that the waste discharge is less likely to be broken, greatly improving the production speed and efficiency of the die-cutting waste discharge process.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. An efficient self-adhesive label waste discharge mechanism, characterized by: It includes a waste material driving roller which is arranged obliquely, and a die-cutting roller, a die-cutting bottom roller, a separation roller, a tension sensing roller, a waste rolling roller, a paper driving roller, and a paper pressing roller which are arranged parallel to each other; there is a certain angle between the axis of the waste material driving roller and the axis of the separation roller; The die-cutting bottom roller is arranged below the die-cutting roller, the paper driving roller is arranged below the paper pressing roller, and the paper passes through the die-cutting roller and the die-cutting bottom roller, the waste driving roller, the paper pressing roller and the paper driving roller from left to right in sequence; the separation roller is located at the upper left of the waste driving roller, the tension sensing roller is located at the upper right of the waste driving roller, and the waste winding roller is located at the upper right of the tension sensing roller, and the die-cutting waste discharge passes through the waste driving roller, the separation roller, the tension sensing roller and the waste winding roller in sequence from bottom to top.

2. The high-efficiency self-adhesive label waste discharge mechanism according to claim 1, characterized in that: The angle is 30 degrees.

3. The high-efficiency self-adhesive label waste discharge mechanism according to claim 1, characterized in that: The mechanism further comprises a separation bottom roller, and the separation bottom roller is located below the separation roller.

4. The high-efficiency self-adhesive label waste discharge mechanism according to claim 3 is characterized in that: The paper passes between the die-cutting roller and the die-cutting bottom roller, passes through the bottom side in turn around the separation bottom roller and the waste active roller, and then passes between the paper pressing roller and the paper active roller; The die-cutting waste discharge bypasses the waste active roller from the right side, passes between the separation roller and the separation bottom roller, bypasses the separation roller via the left side, bypasses the tension sensing roller via the right side, and bypasses the waste winding roller via the left side.

5. The high-efficiency self-adhesive label waste discharge mechanism according to claim 1, characterized in that: The die-cutting roller is a magnetic die-cutting roller; the die-cutting bottom roller is a smooth metal roller.

6. The high-efficiency self-adhesive label waste discharge mechanism according to claim 1, characterized in that: The separation roller is a smooth metal roller.

7. The high-efficiency self-adhesive label waste discharge mechanism according to claim 1, characterized in that: The waste material active roller is a steel roller with anti-glue treatment on the surface.

8. The high-efficiency self-adhesive label waste discharge mechanism according to claim 1, characterized in that: The tension sensing roller is a floating roller that can freely move up and down, and can control the speed of the waste winding roller's rotation according to the rotation angle generated by its up and down floating position.

9. The high-efficiency waste self-adhesive label discharge mechanism according to claim 8, characterized in that: The tension sensing roller is a light plastic roller.

10. The high-efficiency waste self-adhesive label discharge mechanism according to claim 1, characterized in that: The paper driving roller is a smooth metal roller, and the paper pressing roller is a rubber roller.

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