Radio frequency printer

Abstract

The utility model belongs to the technical field of printers, and particularly relates to a radio frequency printer which comprises a printer body, a separation support is installed on the middle side of the bottom end in the printer body, a pair of conveying rollers distributed up and down is installed on the middle side of the front end of the separation support, and a relaxation roller is installed on the lower side of the front end of the separation support. Radio frequency label paper is unwound from the inside of a paper disc and then sequentially conveyed to pass through a stretching roller, an edge trimming roller, a separation guide roller, a relaxation roller, a paper outlet roller and an extrusion roller, the edge trimming roller enables the edge of the radio frequency label paper to be neat, and the stretching roller, the separation guide roller, the relaxation roller, the paper outlet roller and a conveying roller play roles in conveying, straightening and rolling the radio frequency label paper. The radio frequency label paper is gradually tidied and flattened, the dust removal roller, the dust removal hair bundle, the edge trimming roller, the air pump and the suction nozzle are used in cooperation to remove dust on the surface of the radio frequency label paper, mechanical faults caused by dislocation of the dust and paper clamping are avoided, and the problems that an existing radio frequency printer is prone to being affected by dust accumulation, wrinkles, imprint and creases of the radio frequency label paper, and the production efficiency is high are solved. And the printing effect is influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of printers, and in particular relates to a radio frequency printer. Background Art

[0002] RFID printers are used to print RFID label paper. They have a printing speed of up to 104mm / s and support the reading and writing of ISO14443A standard protocol smart labels. The thermal element of the print head heats the color developer pre-coated on the surface of the RFID label paper. The color developer develops color on the surface of the RFID label paper after being heated. Its principle is the same as that of a barcode printer, also called a thermal printer. After printing the RFID label, the printer will automatically verify the data written into the chip to ensure the accuracy and completeness of the data in each electronic label. The whole machine adopts a modular design with the characteristics of simple structure and easy operation. It is widely used in the fields of goods management, tracking, logistics management, etc. in manufacturing, retail, medical and other industries.

[0003] Today's RF printers still have the following shortcomings:

[0004] Disadvantage 1: After the RFID label paper is stored in the warehouse for a period of time, a small amount of dust in the air will adhere to the surface of the RFID label paper. A small amount of dust is not easy to attract attention. Before the RFID label paper is put into the printer, it is easy to be ignored. The accumulated trace dust is transmitted along the RFID label paper and attached to the surface of the print head. At the beginning, a small amount of dust has little effect on the print head. After years and months, the dust accumulates to a level visible to the naked eye, which eventually affects the printing effect of the print head on the RFID label paper, and the print head is prone to failure of substandard printing quality;

[0005] Disadvantage 2: Unprinted RFID label paper will be squeezed and deformed when stacked and stored for a long time. Wrinkles, embossing, creases and other phenomena are likely to appear around the RFID label paper, and the surface of the RFID label paper becomes uneven. After such RFID label paper is loaded into the printer, the RFID label paper encounters resistance during the transmission process, causing the RFID label paper to be transmitted unsmoothly, causing the RFID label paper to be misplaced, paper jams and other phenomena, and the printer is prone to mechanical failures. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the defects of the prior art and solve the problem that the existing radio frequency printer is easily affected by dust accumulation, wrinkles, embossing and creases of radio frequency label paper, which affects the printing effect.

[0007] The technical solution adopted by the utility model to solve the technical problem is: a radio frequency printer, comprising a body;

[0008] A partition tray is installed at the middle side of the bottom end of the body, a pair of conveying rollers distributed up and down are installed at the middle side of the front end of the partition tray, a tensioning roller is installed at the lower side of the front end of the partition tray, and a paper feeding port is opened at the lower side of the front end of the partition tray and located behind the tensioning roller;

[0009] A row of suction nozzles is arranged on the upper side of the rear end of the partition support, and at least three suction nozzles are arranged. A dust removal roller is installed on the middle side of the rear end of the partition support and below the suction nozzles. A plurality of dust removal hair bundles are installed on the surface of the dust removal roller. A pair of stretching rollers distributed up and down are installed below the dust removal roller, and edge straightening rollers are installed on both the left and right sides of the front end of the stretching roller.

[0010] A bracket located below the stretching roller is installed at the lower side of the rear end of the separation bracket, and a pair of separation guide rollers are arranged inside the bracket;

[0011] The bottom end of the partition support is provided with a paper feeding port located behind the tension roller, and a pair of conveying rollers are installed at the middle side of the front end of the partition support.

[0012] Preferably, a side cover is installed at the rear end of the fuselage, a disc tray is installed at the rear end of the interior of the fuselage and between the side cover and the bracket, and a paper tray is detachably connected to the upper end of the disc tray.

[0013] Preferably, an air pump located at the bottom of the fuselage is installed at the lower end of the bracket, the air pump is connected to the suction nozzle through a conduit, and a top bracket fixed to the top of the fuselage is installed between the multiple suction nozzles.

[0014] Preferably, a print head located above the conveying roller is installed on the upper side of the front end of the partition support, and a thermal element is installed on the surface of the print head.

[0015] Preferably, a pair of partition plates located above the partition guide rollers are installed at the top of the bracket, and the lower ends of the partition plates are rotatably connected to adjacent partition guide rollers respectively. The partition plates are symmetrically distributed front to back and are inclined inward at an angle of thirty to forty degrees.

[0016] Preferably, a paper discharge roller installed at the front end of the separation support is arranged between the tension roller and the conveying roller, a squeezing roller is installed on the surface of the paper discharge roller, and a paper discharge port located in front of the paper discharge roller is opened at the front end of the machine body.

[0017] Preferably, the edge trimming roller is grounded, and the grounding resistance of the edge trimming roller does not exceed four ohms.

[0018] Compared with the prior art, the utility model achieves the following beneficial effects:

[0019] A side cover is provided to facilitate replacement of the paper tray inside the fuselage. The tray support is used to support and place the paper tray inside the fuselage. The paper tray is used to place the RFID label paper inside the fuselage. The bracket inside the fuselage forms two mutually separated accommodation spaces for the dust removal roller, edge straightening roller, stretching roller, separation guide roller, tensioning roller, conveying roller, paper discharge roller, and squeezing roller. After the RFID label paper is unrolled from the paper tray, it passes through the stretching roller, edge straightening roller, separation guide roller, tensioning roller, paper discharge roller, and squeezing roller in sequence. The RFID label paper presents a "U"-shaped moving route inside the fuselage. The edge straightening roller makes the edge of the RFID label paper neat. The stretching roller, separation guide roller, relaxation roller, paper discharge roller and conveying roller transfer, straighten and roll the RFID label paper. The RFID label paper is gradually straightened and flattened. The dust removal roller, dust removal hair bundle, edge straightening roller, air pump and suction nozzle are used together to remove dust on the surface of the RFID label paper. The paper discharge roller and conveying roller send the RFID label paper printed by the print head out of the paper outlet to avoid mechanical failures caused by dust and paper jams, so as to ensure the printing quality of the print head on the surface of the RFID label paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the external structure of the partition support of the utility model.

[0023] In the figure: 1. Machine body; 2. Paper outlet; 3. Paper outlet roller; 4. Side cover; 5. Paper tray; 6. Tray support; 7. Top support; 8. Suction nozzle; 9. Dust removal roller; 10. Dust removal hair bundle; 11. Edge straightening roller; 12. Stretching roller; 13. Bracket; 14. Partition plate; 15. Partition guide roller; 16. Partition support; 17. Relaxation roller; 18. Paper feed port; 19. Air pump; 20. Print head; 21. Conveyor roller; 22. Extrusion roller. DETAILED DESCRIPTION

[0024] See also Figure 1-3The utility model provides a technical solution: a radio frequency printer comprises a body 1, a partition tray 16 is installed at the middle side of the bottom end of the body 1, a pair of conveying rollers 21 distributed up and down are installed at the middle side of the front end of the partition tray 16, a tension roller 17 is installed at the lower side of the front end of the partition tray 16, and a paper feeding port 18 located behind the tension roller 17 is opened at the lower side of the front end of the partition tray 16; a row of suction nozzles 8 are arranged at the upper side of the rear end of the partition tray 16, and at least three suction nozzles 8 are arranged; a dust removal roller 9 is installed at the middle side of the rear end of the partition tray 16 and below the suction nozzle 8, a plurality of dust removal hair bundles 10 are installed on the surface of the dust removal roller 9, a pair of stretching rollers 12 distributed up and down are installed below the dust removal roller 9, and edge straightening rollers 11 are installed on both sides of the front end of the stretching roller 12; a bracket 13 located below the stretching roller 12 is installed at the lower side of the rear end of the partition tray 16, and the bracket 13 has a plurality of dust removal hair bundles 10 installed on the surface of the dust removal roller 9, and ... the pair of conveying rollers 12 distributed up and down are installed below the dust removal roller 9, and edge straightening rollers 11 are installed on both sides of the front end of the stretching roller 12; a bracket 13 located below the stretch A pair of separation guide rollers 15 are arranged on the side; a paper feeding port 18 located behind the tension roller 17 is opened at the bottom end of the separation support 16, and a pair of conveying rollers 21 are installed on the middle side of the front end of the separation support 16; a paper discharge roller 3 installed at the front end of the separation support 16 is arranged between the tension roller 17 and the conveying roller 21, and a squeezing roller 22 is installed on the surface of the paper discharge roller 3. The paper discharge roller, the dust removal roller 9, the edge straightening roller 11, the stretching roller 12, the tension roller 17, the conveying roller 21, and the squeezing roller 22 are separately installed with motors to provide power, and the motors are driven by the internal power of the fuselage 1 to drive the paper discharge roller, the dust removal roller 9, the edge straightening roller 11, the stretching roller 12, the tension roller 17, the conveying roller 21, and the squeezing roller 22 to rotate respectively, wherein the separation guide roller 15 and the squeezing roller 22 have no power driving measures themselves, but are driven by the moving friction of the radio frequency printing paper during the movement;

[0025] A side cover 4 is installed at the rear end of the fuselage 1, and a tray 6 is installed at the rear end of the fuselage 1 and between the side cover 4 and the bracket 13. The upper end of the tray 6 is detachably connected with a paper tray 5. The side cover 4 is opened from the rear end of the fuselage 1 to reveal the paper tray 5 and the tray 6. The paper tray 5 is removed from the tray 6, and the rolled radio frequency label paper is inserted into the paper tray 5. The paper tray 5 with the radio frequency label paper is reinstalled on the tray 6. The side cover 4 is provided to facilitate the replacement of the paper tray 5 inside the fuselage 1. The tray 6 is used to support the paper tray 5 and place it inside the fuselage 1. The paper tray 5 is used to place the radio frequency label paper inside the fuselage 1.

[0026] Pull out a small section of the RFID label paper from the paper tray 5 and pass it forward between the upper and lower stretching rollers 12. The RFID label paper passes forward in front of the upper and lower stretching rollers 12. The edges of the left and right ends of the RFID label paper pass through the adjacent upper and lower edge straightening rollers 11 respectively. A pair of partition plates 14 located above the partition guide rollers 15 are installed at the top of the bracket 13. The lower ends of the partition plates 14 are rotatably connected to the adjacent partition guide rollers 15 respectively. The RFID label paper passes downward between the two partition plates 14. The RFID label paper contacts the surface of the partition guide roller 15. The RFID label paper passes from top to bottom between the front and rear partition guide rollers 15 and enters Inside the bracket 13, the RFID label paper passes forward through the paper feeding port 18 inside the bracket 13, bypasses the lower end of the tension roller 17 from the paper feeding port 18, and then passes upward between the upper and lower conveying rollers 21, and passes from the rear between the upper and lower conveying rollers 21 to the front between the upper and lower conveying rollers 21. A print head 20 located above the conveying roller 21 is installed on the upper side of the front end of the partition bracket 16, and a thermal element is installed on the surface of the print head 20. The RFID label paper passes from under the print head 20, and passes from the back to the front between the squeezing roller 22 and the paper output roller 3, so as to complete the process of installing the RFID label paper into the body 1;

[0027] The side cover 4 is closed again, so that the radio frequency printing paper is kept airtight inside the machine body 1. The bracket 13 forms two mutually separated accommodation spaces for the dust removal roller 9, the edge straightening roller 11, the stretching roller 12, the separation guide roller 15, the tension roller 17, the conveying roller 21, the paper discharge roller 3, and the squeezing roller 22 inside the machine body 1. The internal circuit of the machine body 1 drives the motor installed on the paper discharge roller 3, the dust removal roller 9, the edge straightening roller 11, the stretching roller 12, the tension roller 17, the conveying roller 21, and the squeezing roller 22, so that the paper discharge roller 3, the dust removal roller 9, the edge straightening roller 11, the stretching roller 12, the tension roller 17, the conveying roller 21, and the squeezing roller 22 rotate. Figure 2See, the upper and lower stretching rollers 12 rotate counterclockwise and clockwise respectively, the upper and lower edge straightening rollers 11 rotate counterclockwise and clockwise respectively, the edge straightening rollers 11 and stretching rollers 12 on the same horizontal plane rotate in the same direction, the tension roller 17 rotates counterclockwise, the upper and lower adjacent conveying rollers 21 rotate counterclockwise and clockwise respectively, the squeezing roller 22 rotates counterclockwise, the paper discharge roller 3 rotates clockwise, the paper tray 5 rotates clockwise, the RFID label paper is gradually unwound from the paper tray 5, and the RFID label paper moves from back to front inside the fuselage 1. After being unwound from the paper tray 5, the RFID label paper passes through the stretching roller 12, edge straightening roller 11, separation guide roller 15, tension roller 17, paper discharge roller 3, squeezing roller 22, print head 2 0 gradually prints the moving RFID label paper from front to back, and the RFID printed label is pressed against the surface of the squeezing roller 22 and the separation guide roller 15 respectively and closely adheres to the surface, and the squeezing roller 22 presses the RFID label paper on the surface of the paper discharge roller 3, and the RFID label paper moves as the paper discharge roller 3 rotates, and the squeezing roller 22 rotates counterclockwise as the RFID label paper moves, and the front and rear separation guide rollers 15 rotate counterclockwise and clockwise respectively as the RFID label paper moves, and the dust removal roller 9, the edge straightening roller 11, the stretching roller 12, the separation guide roller 15, the tensioning roller 17, the conveying roller 21, the paper discharge roller 3, and the squeezing roller 22 play a role in conveying the RFID label paper, and the front end of the fuselage 1 is provided with a paper discharge port 2 located in front of the paper discharge roller 3, and the RFID label paper gradually extends out of the paper discharge port 2;

[0028] The partition plates 14 are symmetrically distributed front and back, and the partition plates 14 are tilted inward at an angle of thirty to forty degrees. The partition plates 14 allow the front and rear partition guide rollers 15 to be close to each other, and an equilateral triangle is formed between the two partition plates 14. The RF label paper is placed upright between the partition guide roller 15 and the stretching roller 12 on the way. After the RF label paper is unwound from the paper tray 5 to the stretching roller 12, it changes from the original horizontal placement to a vertical placement. The partition guide roller 15 maintains a top-down placement posture for the RF label paper inside the bracket 13. The RF label paper is straightened between the edge straightening roller 11 and the stretching roller 12. The partition guide roller 15 and the tensioning roller 17 straighten the RF label paper inside the paper feeding port 18. The two conveying rollers 21 pull the RF label paper vertically upward from back to front inside the paper feeding port 18 The RFID label paper moves forward vertically to the paper outlet 2, and the RFID label paper presents a "U"-shaped moving route inside the fuselage 1. The RFID label paper keeps an open effect inside the fuselage 1. As the stretching roller 12 rotates, the RFID label paper gradually moves from the paper tray 5 to the edge straightening roller 11. The edge of the RFID label paper is pressed as the edge straightening roller 11 rotates. The edge straightening roller 11 makes the edge of the RFID label paper neat. The stretching roller 12, the separation guide roller 15, the tensioning roller 17, the paper outlet roller 3, and the conveying roller 21 cooperate to transfer, straighten, and roll the RFID label paper. The RFID label paper is gradually straightened and flattened, and the RFID printed label moves smoothly inside the fuselage 1, avoiding mechanical failure of the printer caused by paper jam and misalignment.

[0029] The plurality of dust removal hair bundles 10 revolve with the rotation of the dust removal roller 9. When each dust removal hair bundle 10 rotates to the lowest position of the dust removal roller 9 in turn, the dust removal hair bundle 10 will contact the surface of the stretching roller 12 above. Each dust removal hair bundle 10 collides and beats with the surface of the stretching roller 12 in turn. The friction between the surface of the dust removal hair bundle 10 and the surface of the stretching roller 12 generates electricity. Static electricity is generated on the surface of the stretching roller 12 and the surface of the dust removal hair bundle 10. The static electricity is gradually transmitted to the surface of the radio frequency label paper as the stretching roller 12 rotates. The static electricity ionizes the air near the stretching roller 12 due to the electric field. The atoms in the air in this area are ionized into ions. The dust on the surface of the radio frequency label paper will be electrostatically adsorbed to the surface of the stretching roller 12. The rotating dust removal hair bundle 10 will also beat and clean the dust particles on the surface of the stretching roller 12 that are electrostatically adsorbed, and the dust will then adhere from the surface of the stretching roller 12 to the surface of the dust removal hair bundle 10. An air pump 19 located at the bottom of the body 1 is installed at the lower end of the bracket 13. The air pump 19 is connected to the suction nozzle 8 through a conduit, and a top support 7 fixed to the top of the inside of the fuselage 1 is installed between the multiple suction nozzles 8. The air pump 19 is started to suck air from the suction nozzle 8, and the suction nozzle 8 sucks away the dust on the surface of the dust removal hair bundle 10 and the dust removal roller 9. The edge straightening roller 11 is grounded, and the grounding resistance of the edge straightening roller 11 does not exceed four ohms. Due to the grounding of the edge straightening roller 11, a "zero" potential is generated, and a potential difference is formed between the edge straightening roller 11 and the surface of the radio frequency printed label. The charge on the surface of the radio frequency printed label is conducted to the "ground" through the edge straightening roller 11, so that the residual charge on the surface of the radio frequency printed label is eliminated before being transmitted to the separation guide roller 15. The dust removal roller 9, the dust removal hair bundle 10, the edge straightening roller 11, the air pump 19, and the suction nozzle 8 are used in combination to remove the dust on the surface of the radio frequency label paper. The paper discharge roller 3 and the conveying roller 21 are used in combination to send the radio frequency label paper printed by the print head 20 from the paper discharge port 2 to avoid damage to the print head 20 due to dust, so as to ensure the printing quality of the print head 20 on the surface of the radio frequency label paper.

Claims

1. A radio frequency printer, comprising a body (1), characterized in that: A partition tray (16) is installed at the middle of the bottom of the body (1), a pair of conveying rollers (21) distributed up and down are installed at the middle of the front end of the partition tray (16), a tensioning roller (17) is installed at the lower side of the front end of the partition tray (16), and a paper feeding port (18) is opened at the lower side of the front end of the partition tray (16) and is located behind the tensioning roller (17); A row of suction nozzles (8) is arranged on the upper side of the rear end of the partition support (16), and at least three suction nozzles (8) are arranged; a dust removal roller (9) is installed on the middle side of the rear end of the partition support (16) and below the suction nozzles (8); a plurality of dust removal hair bundles (10) are installed on the surface of the dust removal roller (9); a pair of stretching rollers (12) distributed up and down are installed below the dust removal roller (9); and edge straightening rollers (11) are installed on both left and right sides of the front end of the stretching roller (12); A bracket (13) located below the stretching roller (12) is installed at the lower side of the rear end of the separation bracket (16), and a pair of separation guide rollers (15) are arranged inside the bracket (13); The bottom end of the separation tray (16) is provided with a paper feeding port (18) located behind the tension roller (17), and a pair of conveying rollers (21) are installed on the middle side of the front end of the separation tray (16).

2. A radio frequency printer as claimed in claim 1, characterized in that: The rear end of the body (1) is provided with a side cover (4), the rear end of the body (1) is provided with a tray (6) between the side cover (4) and the bracket (13), and the upper end of the tray (6) is detachably connected with a paper tray (5).

3. A radio frequency printer as claimed in claim 1, characterized in that: An air pump (19) located at the bottom of the body (1) is installed at the lower end of the bracket (13); the air pump (19) is connected to the suction nozzle (8) through a conduit; and a top bracket (7) fixed to the top of the body (1) is installed between the plurality of suction nozzles (8).

4. A radio frequency printer as claimed in claim 1, characterized in that: A print head (20) located above a conveying roller (21) is installed on the upper front end of the separation tray (16), and a thermal element is installed on the surface of the print head (20).

5. A radio frequency printer as claimed in claim 1, characterized in that: A pair of partition plates (14) located above the partition guide rollers (15) are installed at the top of the bracket (13), and the lower ends of the partition plates (14) are rotatably connected to the adjacent partition guide rollers (15). The partition plates (14) are symmetrically distributed frontward and rearward, and the partition plates (14) are inclined inward at an angle of thirty to forty degrees.

6. A radio frequency printer as claimed in claim 1, characterized in that: A paper discharge roller (3) mounted on the front end of the separation support (16) is arranged between the tension roller (17) and the conveying roller (21); a squeezing roller (22) is mounted on the surface of the paper discharge roller (3); and a paper discharge port (2) located in front of the paper discharge roller (3) is provided at the front end of the machine body (1).

7. A radio frequency printer as claimed in claim 1, characterized in that: The edge straightening roller (11) is grounded, and the grounding resistance of the edge straightening roller (11) does not exceed four ohms.

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