Label stripper capable of improving stripping performance and thermal printer

Abstract

The label stripper comprises a baffle, a cover plate and a stripping roller, a backing paper passing groove is formed in the front side of the baffle, the stripping roller is located in the backing paper passing groove and arranged on the cover plate, the cover plate is hinged to the baffle and covers the front side of the backing paper passing groove, a backing paper inlet is formed in the upper portion of the backing paper passing groove, and the stripping roller is located in the backing paper passing groove. A backing paper outlet is formed below the backing paper passing groove, side walls are arranged on the two sides of the cover plate in the paper width direction respectively, the stripping roller comprises a rotating shaft and a stripping shaft sleeve, the rotating shaft and the stripping shaft sleeve extend in the paper width direction, the rotating shaft is arranged between the two side walls, and the stripping shaft sleeve is rotationally arranged outside the rotating shaft in a sleeving mode and located in the middle of the rotating shaft; based on the paper width direction, the stripping shaft sleeve is shorter than the rotating shaft. Through the arrangement of the short shaft sleeve, the requirement for the machining precision is lowered, the requirement for the left-right balance degree is lowered, and therefore the operation stability is improved, and the clamping force is more concentrated.

Description

Technical Field

[0001] The utility model relates to the field of label printing, in particular to a label peeler and a thermal printer with improved peeling performance. Background Art

[0002] With the rapid growth of e-commerce and express delivery business, express delivery orders were previously filled out manually. Now, label printers based on thermal imaging principles are used to print fonts at the corresponding positions on the express delivery orders, or directly print self-adhesive express delivery labels, and then separate the self-adhesive labels and stick them on the goods, thereby effectively improving the efficiency of express delivery.

[0003] The existing label peeling mechanism separates the base paper from the label by pulling the base paper in the opposite direction at a large angle. The peeling roller and the rubber roller in the prior art are basically of the same length and are basically designed according to the maximum printing width. Although the long sleeve is designed to cover the entire width of the surface paper, when the peeling sleeve is squeezed by the rubber roller of the printer, the force is dispersed on the entire sleeve. When peeling narrow paper, it causes a waste of pressure and does not fully act on the paper, resulting in the inability to peel narrow paper.

[0004] In addition, since the sleeve is too long, the running stability is reduced. After a period of use, the left and right forces of the sleeve will be unbalanced, resulting in one side being loose and the other side being tight, which in turn causes a rapid decrease in the reliability of stripping. Utility Model Content

[0005] The first purpose of the utility model is to provide a label peeler with improved peeling performance.

[0006] The second object of the utility model is to provide a thermal printer with the label peeler.

[0007] In order to achieve the first purpose of the utility model, the utility model provides a label peeler with improved peeling performance, including a baffle, a cover plate and a peeling roller, the baffle is provided with a bottom paper slot on the front side, the peeling roller is located in the bottom paper slot and is arranged on the cover plate, the cover plate is hinged to the baffle and covers the front side of the bottom paper slot, the bottom paper slot is provided with a bottom paper inlet at the top, and the bottom paper slot is provided with a bottom paper outlet at the bottom, the cover plate is respectively provided with side walls on both sides in the paper width direction, the peeling roller includes a rotating shaft and a peeling sleeve, the rotating shaft and the peeling sleeve both extend in the paper width direction, the rotating shaft is arranged between the two side walls, the peeling sleeve can be rotatably mounted outside the rotating shaft and is located in the middle of the rotating shaft; based on the paper width direction, the length of the peeling sleeve is less than the length of the rotating shaft.

[0008] A further solution is that the rotating shaft is provided with snap rings at two axial ends of the stripping sleeve, and the stripping sleeve is adjacent to the two snap rings.

[0009] A further solution is that the rotating shaft is provided with clamping grooves at two axial ends of the stripping sleeve, and a clamping ring is engaged with one clamping groove.

[0010] A further solution is that the length of the stripping sleeve in the paper width direction is between 30 mm and 100 mm.

[0011] A further solution is that the length of the stripping sleeve in the paper width direction is 70 mm.

[0012] In order to achieve the second purpose of the utility model, the utility model provides a thermal printer, including a driving device, a rubber roller and a thermal sheet, the driving device is connected to the rubber roller and drives the rubber roller to rotate, the rubber roller and the thermal sheet are opposite to each other and form a paper feeding channel, and a paper outlet is arranged at the front side of the paper feeding channel; the thermal printer also includes a label peeler as the above-mentioned scheme, the label peeler is arranged at the paper outlet, the peeling sleeve is adjacent to the rubber roller and rollingly cooperates; based on the paper width direction, the length of the peeling sleeve is less than the length of the rubber roller.

[0013] A further solution is that the outer diameter of the stripping sleeve is smaller than the outer diameter of the rubber roller.

[0014] The beneficial effect of the utility model is that, by arranging the length of the stripping sleeve into a short sleeve, specifically smaller than the length of the rotating shaft and the length of the rubber roller, firstly the requirements for processing accuracy are reduced, and the requirements for left-right balance are reduced, thereby improving the stability of operation; secondly, when the contact surface between the rubber roller and the stripping sleeve is reduced, the clamping force is more concentrated, which is beneficial to increase the clamping force, thereby improving the stripping performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial structural diagram of an embodiment of the thermal printer of the utility model.

[0016] Figure 2 It is a partial structural diagram of an embodiment of the label peeler of the utility model.

[0017] Figure 3 It is an exploded view of an embodiment of the label peeler of the utility model.

[0018] Figure 4 It is a partial cross-sectional view of an embodiment of the thermal printer of the utility model.

[0019] Figure 5 It is a partial top view of an embodiment of the thermal printer of the utility model.

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0021] Thermal printer and label peeler embodiment:

[0022] Reference Figures 1 to 5 The thermal printer includes a driving device, a rubber roller 13, a thermal film 15 and a label peeler. The driving device (not shown) includes a driving motor and a transmission gear. The rubber roller 13 is made of rubber and has a shaft 14 extending through it along its axial direction. The transmission gear is connected to the end of the shaft 14. When the driving motor drives the transmission gear, the rubber roller 13 is driven to rotate. The rubber roller 13 and the thermal film 15 are opposite to each other and form a paper feeding channel. A paper outlet is provided at the front side of the paper feeding channel, and the label peeler is provided at the paper outlet.

[0023] The label peeler includes a baffle 11, a cover plate 12 and a peeling roller 2. The baffle 11 is provided with a bottom paper slot 111 on the front side. The peeling roller 2 is located in the bottom paper slot 111 and is provided on the cover plate 12. The cover plate 12 is hinged to the baffle 11 through an axis 123 and covers the front side of the bottom paper slot 111. The bottom paper slot 111 is provided with a bottom paper inlet 112 on the top. A peeling knife 16 is provided above the bottom paper inlet 112. The bottom paper slot 111 is provided with a bottom paper outlet 113 on the bottom.

[0024] The cover plate 12 is provided with side walls 121 on both sides of the paper width direction X, and the side walls 121 are provided with mounting holes 122. The peeling roller 2 includes a rotating shaft 21 and a peeling sleeve 22. The rotating shaft 21 and the peeling sleeve 22 both extend along the paper width direction X. The rotating shaft 21 is arranged between the mounting holes 122 of the two side walls 121.

[0025] The stripping sleeve 22 is made of rubber material. The stripping sleeve 22 is rotatably mounted outside the rotating shaft 21 and is located in the middle of the rotating shaft 21. Based on the paper width direction X, the length L1 of the stripping sleeve 22 is less than the length L2 of the rotating shaft 21. The rotating shaft 21 is provided with snap rings 23 at the two axial ends of the stripping sleeve 22. The stripping sleeve 22 is adjacent to the two snap rings 23. The rotating shaft 21 is provided with snap grooves 211 at the two axial ends of the stripping sleeve 22. One snap ring 23 is engaged with one snap groove 211. The length of the stripping sleeve 22 in the paper width direction X is between 30 mm and 100 mm. Furthermore, the length of the stripping sleeve 22 in the paper width direction X is 70 mm.

[0026] Reference Figure 4 and Figure 5When printing label paper, the label paper 3 includes a base paper 31 and a self-adhesive label 32. The label paper 3 passes through the paper feeding channel and is clamped by the rubber roller 13 and the thermal film 15. The thermal film 15 generates heat and the rubber roller 13 feeds the paper, so as to form a pattern on the base paper 31. Then, after the peeling knife 16 peels the base paper 31 at a large angle, the base paper 31 is input from the base paper inlet 112, and then clamped by the peeling sleeve 22 and the rubber roller 13, and then output from the base paper outlet 113. The peeling sleeve 22 is adjacent to and rolls with the rubber roller 13, and the peeling sleeve 22 and the rubber roller 13 clamp the base paper 31. Based on the paper width direction X, the length L2 of the peeling sleeve 22 is smaller than the length L3 of the rubber roller 13, the outer diameter of the peeling sleeve 22 is smaller than the outer diameter of the rubber roller 13, and the rubber roller 13 and the peeling sleeve 22 roll together, so as to realize the downward driving feeding of the base paper 31.

[0027] As can be seen from the above, by arranging the length of the stripping sleeve into a short sleeve, specifically smaller than the length of the rotating shaft and the length of the rubber roller, firstly, the requirements for processing accuracy and left-right balance are reduced, thereby improving the stability of operation; secondly, when the contact area between the rubber roller and the stripping sleeve is reduced, the clamping force is more concentrated, which is beneficial to increase the clamping force and thus improve the stripping performance.

Claims

1. A label peeler for improving peeling performance, comprising a baffle, a cover plate and a peeling roller, wherein the baffle is provided with a bottom paper slot at the front side, the peeling roller is located in the bottom paper slot and is provided on the cover plate, the cover plate is hinged to the baffle and covers the front side of the bottom paper slot, the bottom paper slot is provided with a bottom paper inlet at the top, and the bottom paper slot is provided with a bottom paper outlet at the bottom; Features: The cover plate is provided with side walls on both sides in the paper width direction, the stripping roller comprises a rotating shaft and a stripping sleeve, the rotating shaft and the stripping sleeve both extend in the paper width direction, the rotating shaft is arranged between the two side walls, and the stripping sleeve is rotatably mounted outside the rotating shaft and is located in the middle of the rotating shaft; Based on the paper width direction, the length of the stripping sleeve is smaller than the length of the rotating shaft.

2. The label peeler according to claim 1, characterized in that: The rotating shaft is provided with snap rings at two axial ends of the stripping sleeve, respectively, and the stripping sleeve is adjacent to the two snap rings.

3. The label peeler according to claim 2, characterized in that: The rotating shaft is respectively provided with clamping grooves at two axial ends of the stripping sleeve, and one of the clamping rings is engaged with one of the clamping grooves.

4. The label peeler according to any one of claims 1 to 3, characterized in that: The length of the stripping sleeve in the paper width direction is between 30 mm and 100 mm.

5. The label peeler according to any one of claims 1 to 3, characterized in that: The length of the stripping sleeve in the paper width direction is 70 mm.

6. A thermal printer, comprising a driving device, a rubber roller and a thermal sheet, wherein the driving device is connected to the rubber roller and drives the rubber roller to rotate, the rubber roller and the thermal sheet are opposite to each other and form a paper feeding channel, and a paper outlet is arranged at the front side of the paper feeding channel; It is characterized in that The thermal printer further comprises a label peeler as claimed in any one of claims 1 to 5, wherein the label peeler is arranged at the paper outlet, and the peeling sleeve is adjacent to and rollingly engaged with the rubber roller; Based on the paper width direction, the length of the stripping sleeve is smaller than the length of the rubber roller.

7. The thermal printer according to claim 6, characterized in that: The outer diameter of the stripping sleeve is smaller than the outer diameter of the rubber roller.

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