Search

CN-122009899-A - Stripping structure for preventing backing paper from loosening and label printer

CN122009899ACN 122009899 ACN122009899 ACN 122009899ACN-122009899-A

Abstract

The invention discloses a peeling structure for preventing backing paper from loosening and a label printer. The label printer comprises a stripping structure, the label printer can ensure sufficient traction force to overcome the resistance in stripping when stripping, so that the bottom paper can be well pulled, the bottom paper can be kept tight to prevent loosening when stripping, the friction force between the two rollers can be ensured to be small when paper is withdrawn, the pull-back force of the printing rubber roller to the bottom paper can not be influenced, and the stability of the stripping process can be ensured.

Inventors

  • Request for anonymity
  • Request for anonymity
  • Request for anonymity

Assignees

  • 珠海芯烨电子科技有限公司

Dates

Publication Date
20260512
Application Date
20260414

Claims (13)

  1. 1. The utility model provides a prevent not hard up peeling structure of backing paper, its characterized in that includes peeling channel (1), driven rubber roll (2) and relative printer head and the printing rubber roll (3) that set up, the printer head with print between rubber roll (3) with peeling channel (1) butt joint, the end of peeling channel (1) is provided with and peels off subassembly (5), driven rubber roll (2) with print rubber roll (3) butt, be provided with first line (6) on driven rubber roll (2), print and be provided with second line (7) on rubber roll (3), second line (7) when printing rubber roll (3) towards first direction rotation with first line (6) butt each other, second line (7) when printing rubber roll (3) towards second direction rotation with first line (6) relatively breaks away from.
  2. 2. The peeling structure for preventing loosening of base paper according to claim 1, wherein the first texture (6) is a plurality of first engaging teeth (8) distributed on the driven rubber roller (2), the second texture (7) is a plurality of second engaging teeth (9) distributed on the printing rubber roller (3), the first engaging teeth (8) and the second engaging teeth (9) are obliquely arranged, the tooth tops of the corresponding second engaging teeth (9) are embedded on the corresponding first engaging teeth (8) when the printing rubber roller (3) rotates in a first direction, and the tooth tops of the corresponding second engaging teeth (9) are separated from the corresponding first engaging teeth (8) when the printing rubber roller (3) rotates in a second direction.
  3. 3. The stripping structure for preventing loosening of base paper according to claim 1, wherein the first texture (6) is a plurality of protruding blocks (10) or a plurality of sliding grooves (11) distributed on the driven rubber roller (2), the second texture (7) is a plurality of sliding grooves (11) or a plurality of protruding blocks (10) distributed on the printing rubber roller (3), the corresponding protruding blocks (10) can be embedded into the corresponding sliding grooves (11), one side of the sliding grooves (11) is a smooth surface (12), the other side is a rough surface (13), the corresponding protruding blocks (10) are embedded into the corresponding sliding grooves (11) and are abutted against the rough surface (13) when the printing rubber roller (3) rotates in a first direction, and the corresponding protruding blocks (10) are abutted against the smooth surface (12) when the printing rubber roller (3) rotates in a second direction.
  4. 4. The stripping structure for preventing loosening of base paper according to claim 1, wherein the first texture (6) is a plurality of first protrusions (15) distributed on the driven rubber roller (2), the second texture (7) is a plurality of second protrusions (16) distributed on the printing rubber roller (3), the first protrusions (15) and the second protrusions (16) each comprise a narrow end (17) and a wide end (18), and the area between the narrow ends (17) and the wide ends (18) in the circumferential direction is gradually increased.
  5. 5. The stripping structure for preventing loosening of base paper as claimed in claim 4, wherein the cross section of the first protrusion (15) and the second protrusion (16) is one of curved surface, triangle or trapezoid.
  6. 6. The stripping structure for preventing backing paper loosening as claimed in any one of claims 2-4, wherein the first grains (6) are uniformly distributed on the driven rubber roller (2), and the second grains (7) are uniformly distributed on the printing rubber roller (3).
  7. 7. The stripping structure for preventing loosening of base paper according to claim 1, wherein the stripping assembly (5) comprises a stripping sheet (19) and a distance pressing plate (20), two ends of the distance pressing plate (20) are fixedly connected to the stripping sheet (19), a stripping gap (21) is arranged between the stripping sheet (19) and the distance pressing plate (20), and the stripping gap (21) is located in the stripping channel (1).
  8. 8. The stripping structure for preventing loosening of base paper according to claim 7, characterized in that the two ends of the distance pressing plate (20) are provided with equal-height bosses (22), and the bottoms of the two equal-height bosses (22) are fixedly connected to the upper end face of the stripping sheet (19).
  9. 9. The stripping structure for preventing loosening of base paper as claimed in claim 7, wherein the paper feeding end of the distance pressing plate (20) is provided with an inclined paper guiding part (28).
  10. 10. The stripping structure for preventing loosening of base paper according to claim 1, wherein the stripping structure further comprises a stripping mounting seat (23), the driven rubber roller (2) is rotatably connected to the stripping mounting seat (23), first shaft sleeves (25) are connected to two ends of the driven rubber roller (2), the first shaft sleeves (25) are abutted to one ends of elastic elements (26), and the other ends of the elastic elements (26) are abutted to the stripping mounting seat (23).
  11. 11. The peeling structure for preventing loosening of base paper according to claim 10, wherein the peeling mounting base (23) is provided with a label detecting sensor (27), and the label detecting sensor (27) is used for detecting whether a label between the driven rubber roller (2) and the printing rubber roller (3) is taken away.
  12. 12. The stripping structure for preventing backing paper loosening as set forth in claim 7, wherein the two ends of the printing rubber roller (3) are connected with a second sleeve (29), and one end of the printing rubber roller (3) is connected with a printing rubber roller gear (30).
  13. 13. A label printer comprising a printer body (31) and a release structure for preventing loosening of base paper as claimed in any one of claims 1 to 12 provided on the printer body (31).

Description

Stripping structure for preventing backing paper from loosening and label printer Technical Field The invention relates to the technical field of printers, in particular to a stripping structure for preventing backing paper from loosening and a label printer. Background In a label printer, when a printed label paper needs to be peeled into a label and a base paper, specifically, when the printed label paper passes through a peeling sheet, the peeling sheet has an acute edge, so that the base paper with high rigidity can bend and change direction along the edge, and a relatively soft label can move forward along a straight line, thereby peeling between the base paper and the label is completed at the edge, wherein when the label paper is peeled, the base paper with high rigidity passes through a space between the printing rubber roller and the hard driven rubber roller (or the non-directional soft rubber roller) through arranging the hard driven rubber roller or the non-directional soft rubber roller at the lower side of the printing rubber roller, and rotates through the printing rubber roller to pull the base paper, so that peeling is realized, however, after the label paper is continuously peeled, the base paper at the position of the peeling sheet is easy to loose due to insufficient traction force of the printing rubber roller on the base paper, so that peeling failure is caused, and when the friction force of the printing rubber roller and the hard driven rubber roller is excessively large, the printing rubber roller can be easily influenced by excessive friction force when the base paper is peeled, so that the peeling failure is caused easily to follow-up. Disclosure of Invention The invention aims to overcome the defects of the prior art and provide a stripping structure for preventing backing paper from loosening. A second object is to provide a label printer comprising said peeling structure. The stripping structure comprises a stripping channel, a driven rubber roller, a printing head and a printing rubber roller, wherein the printing head and the printing rubber roller are oppositely arranged, the printing head is in butt joint with the stripping channel, a stripping assembly is arranged at the tail end of the stripping channel, the driven rubber roller is in butt joint with the printing rubber roller, a first grain is arranged on the driven rubber roller, a second grain is arranged on the printing rubber roller, the second grain is in butt joint with the first grain when the printing rubber roller rotates in a first direction, and the second grain is separated from the first grain relatively when the printing rubber roller rotates in a second direction. Further, the first line is a plurality of first interlock teeth that distribute on the driven rubber roll, the second line is a plurality of second interlock teeth that distribute on the printing rubber roll, first interlock teeth with the second interlock teeth all slope setting, corresponding the top of second interlock teeth when printing the rubber roll and rotating towards first direction gomphosis on corresponding first interlock teeth, corresponding the top of second interlock teeth is in when printing the rubber roll and rotating towards the second direction break away from correspondingly on the first interlock teeth. Further, the first texture is a plurality of protruding blocks or a plurality of sliding grooves distributed on the driven rubber roller, the second texture is a plurality of sliding grooves or a plurality of protruding blocks distributed on the printing rubber roller, the corresponding protruding blocks can be embedded into the corresponding sliding grooves, one side of each sliding groove is a smooth surface, the other side of each sliding groove is a rough surface, the corresponding protruding blocks are embedded into the corresponding sliding grooves and are abutted to the rough surfaces when the printing rubber roller rotates in the first direction, and the corresponding protruding blocks are abutted to the smooth surfaces when the printing rubber roller rotates in the second direction. Further, the first lines are a plurality of first protrusions distributed on the driven rubber roller, the second lines are a plurality of second protrusions distributed on the printing rubber roller, the first protrusions and the second protrusions comprise narrow ends and wide ends, and the area between the narrow ends and the wide ends in the circumferential direction is gradually increased. Further, the cross sections of the first bulge and the second bulge are one of curved surfaces, triangles or trapezoids. Further, the first grains are uniformly distributed on the driven rubber roller, and the second grains are uniformly distributed on the printing rubber roller. Further, the stripping assembly comprises a stripping sheet and a distance pressing plate, wherein two ends of the distance pressing plate are fixedly connected to the s