RFID label printer

Abstract

The invention relates to an RFID label printer, and belongs to the technical field of label printers. The RFID label printer comprises a printer shell, a label roll placement bin is fixedly connected to the interior of the printer shell, an internal controller is arranged below the label roll placement bin, and the internal controller is installed in the printer shell; the printing mechanism is arranged in the printer shell, the lower end of the printing mechanism extends to one side of the label roll containing bin, and the side face, away from the label roll containing bin, of the printing mechanism penetrates to the exterior of the printer shell; according to the device, through the arranged printing mechanism, in the label printing process, a label in the auxiliary printing process can be moved out of a printer shell, meanwhile, the label can be flattened and stretched, the situation that the label is wrinkled is reduced, the situation that the label is bent and the like is reduced, and therefore the label can be conveniently printed. And the printing operation is performed in a flat state, so that the printing effect is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of label printers, and in particular to an RFID label printer. Background Art

[0002] RFID tags, also known as electronic tags, radio frequency tags, transponders, and data carriers, are the carriers of RFID (Radio Frequency Identification) technology. RFID technology is a contactless automatic identification technology that automatically identifies target objects and obtains relevant data through radio frequency signals. The identification work does not require human intervention. RFID tags are composed of coupling elements and chips. Each tag has a unique electronic code. High-capacity electronic tags also have user-writable storage space. They are attached to objects to identify target objects. Existing RFID label printers have become more portable and popular. Operators can operate the printer directly in front of the goods that need to be labeled to print unique labels.

[0003] After searching the prior art for "portable printer", the announcement number is "CN102083630B". The device is easy to carry and use, but during the printing process, since the labels are printed on the goods on site, the internal labels will be torn by the staff when the labels are torn off, causing the labels inside the printer to bend and wrinkle, affecting the printing effect of subsequent labels. Summary of the invention

[0004] Based on this, it is necessary to provide an RFID label printer to address the problem that when tearing off the label, the internal label will be torn by the staff, causing the label inside the printer to bend and wrinkle, affecting the printing effect of subsequent labels.

[0005] An RFID label printer comprises: a printer housing, a label roll storage bin is fixedly connected to the inside of the printer housing, an internal controller is arranged below the label roll storage bin, and the internal controller is installed inside the printer housing; a printing mechanism, the printing mechanism is arranged inside the printer housing, the lower end of the printing mechanism extends to one side of the label roll storage bin, and the printing mechanism extends to the outside of the printer housing away from the side of the label roll storage bin; wherein the printing mechanism comprises a smoothing component arranged inside the printer housing, a shielding component is arranged below the smoothing component, and the shielding component is located on one side of the label roll storage bin, and anti-wrinkle components are arranged on the side of the smoothing component and the shielding component away from the label roll storage bin, and two anti-wrinkle components are installed on the side of the printer housing.

[0006] In one embodiment, the smoothing component includes an upper body fixedly connected to the inner wall of the label roll storage bin, the lower end of the upper body penetrates into the interior of the printer housing, the upper body is rotatably connected to a rotating shaft, the rotating shaft is located inside the printer housing, the upper body is provided with a rotating inner groove on the side close to the shielding component, a fixed connecting roller is provided inside the rotating inner groove, the fixed connecting roller is fixedly connected to the middle of the surface of the rotating shaft, and two contact rolling plates are fixedly connected to the surface of the fixed connecting roller. The material of the contact rolling plate can be soft silicone or foam sponge, and the specific material can be appropriately adjusted according to the actual usage, wherein the contact rolling plate can assist the label to move and keep the expression relatively flat for printing effect.

[0007] In one embodiment, the shielding component includes a printing fixed bin fixedly connected to the inner wall of the printer housing, the inner wall of the printing fixed bin is fixedly connected with a thermal printing end, the surface of the thermal printing end extends to the outer side of the printing fixed bin away from the inner wall of the printer housing, the inclined surface of the printing fixed bin is provided with two sliding grooves, the inner wall of the sliding groove is slidingly connected with a sliding stopper, the surface of the sliding stopper away from the inner wall of the printer housing is fixedly connected with a self-bending spring sheet, and the two self-bending spring sheets are fixedly connected with a shielding protective film on one side close to the printing fixed bin. The shielding protective film is driven by the self-bending spring sheet to shield the printing end of the thermal printing end, wherein since the material of the self-bending spring sheet is an elastic material, the end of the self-bending spring sheet away from the sliding stopper bends toward the printing fixed bin, so that the printing end of the thermal printing end will be less affected by external dust and impurities.

[0008] In one embodiment, the anti-wrinkle assembly includes a protective shell fixedly connected to the side of the printer housing, the inner wall of the protective shell is fixedly connected to an extrusion airbag, the side of the extrusion airbag away from the inner wall of the protective shell is fixedly connected to a positioning contact plate, the positioning contact plate is slidably connected to the inner wall of the protective shell, the side of the positioning contact plate away from the printer housing is slidably connected to a sliding translation plate, and the side of the sliding translation plate away from the positioning contact plate is embedded with a plurality of tearing tines, and the tips of the tearing tines penetrate the outside of the protective shell. The tips of the tearing tines are set in an inclined state, and the inclination angle of the tips forms an acute angle with the straight pull label, so that the label is easy to tear.

[0009] In one embodiment, positioning grooves are provided on both sides of the upper body, and a side positioning frame is clamped inside the positioning groove. The side positioning frame is rotatably connected to the surface of the rotating shaft near the end, and one side of the positioning groove contacts the surface of the shielding component. The side positioning frame is pressed against the inclined surface of the printing fixed bin to form a positioning protection for the passing gap of the label.

[0010] In one embodiment, the abutting roll is spiral, and the spiral directions of the two abutting rolls are opposite. When the two abutting rolls rotate, when they are attached to the label, the wrinkles of the label are spread out to both ends, so that the label tends to be flat when printed, and a good printing effect of the label is maintained.

[0011] In one embodiment, the upper end of the printing fixed bin is fixedly connected to a guide rod, the surface of the guide rod is sleeved with a spring, and the upper end of the spring is fixedly connected to the inner top wall of the printing fixed bin. Due to the action of the spring, the sliding block slides on the surface of the guide rod, wherein the spring maintains the upward movement trend of the sliding block under normal conditions.

[0012] In one embodiment, the side of the sliding block away from the self-bending spring sheet penetrates into the interior of the printing fixed chamber, the sliding block is slidably connected to the surface of the adjacent guide round rod, and the sliding block is fixedly connected to the lower end of the spring, so that the sliding block will drive the shielding protective film to shield the thermal printing end through the self-bending spring sheet.

[0013] In one embodiment, a plurality of guide translation grooves are formed on one side of the positioning contact plate close to the sliding translation plate, and the plurality of guide translation grooves are evenly distributed in a straight line along one side of the positioning contact plate, and the sliding translation plate is slidably connected to the inner wall of the guide translation groove. The squeezing airbag causes the positioning contact plate to move part of the gas toward the sliding translation plate, thereby causing the squeezing airbag to expand in the area close to the sliding translation plate, thereby causing the sliding translation plate to move toward the internal controller.

[0014] In one embodiment, a movable positioning groove is provided at one end of the positioning and contacting plate close to the extrusion airbag, and a fixed positioning rod is slidably connected to the inner wall of the movable positioning groove, and the fixed positioning rod is fixedly connected to the inner wall of the protective shell, and the extrusion airbag is sleeved on the surface of the fixed positioning rod. The movable positioning groove limits the moving space of the positioning and contacting plate, and avoids the gap between the two positioning and contacting plates blocking the movement of the label.

[0015] The above-mentioned RFID label printer can assist the label in the printing process to move out of the printer housing through the printing mechanism, and can also make the label smooth and stretch, reduce the wrinkles on the label, reduce the bending of the label, etc., so that the label will remain flat during the printing operation, ensuring the printing effect; During use, the device can cooperate with the shielding component to ensure the gap for the label to pass through, and can also form an auxiliary protection effect for the thermal printing end during the printing process. During use, the thermal printing end will maintain good contact with the label. When the label is replaced or maintenance is performed, the printer housing is opened, and the thermal printing end will be automatically shielded to reduce the impact of external impurities on the printing effect. When tearing off printed labels, the device can reduce the tearing of printed labels with the assistance of the anti-wrinkle component, making label tearing more convenient and reducing the impact on internal labels. At the same time, during the tearing process, multiple tearing teeth will position the labels, so that internal labels will not be easily shifted to ensure the printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the position of the printing fixed bin of the present invention; Figure 4 It is a schematic diagram of the local explosion structure of the smoothing component of the present invention; Figure 5 This is a schematic diagram of the distribution of the conflicting roll plates of the present invention; Figure 6 It is a schematic diagram of the position of the thermal printing end of the present invention; Figure 7 It is a schematic diagram of the explosion structure of the shielding assembly of the present invention; Figure 8 A partial cross-sectional view of a shielding assembly of the present invention; Fig. 9 This is a schematic diagram of the explosion structure of the anti-wrinkle assembly of the present invention; Fig.10 It is a schematic diagram of the connection between the extrusion airbag and the positioning and contacting plate of the present invention; Fig.11 It is a schematic diagram of the guide translation groove of the present invention.

[0018] Reference numerals: 100, printer housing; 110, internal controller; 200, label roll placement bin; 300, printing mechanism; 310, smoothing assembly; 311, upper body; 312, rotating shaft; 313, positioning groove; 314, side positioning frame; 315, fixed connecting roller; 316, resistance roll plate; 317, rotating inner groove; 320, anti-wrinkle assembly; 321, protective shell; 322, extrusion airbag; 323, positioning resistance plate; 324, sliding translation plate; 325, guide translation groove; 326, tearing sharp teeth; 327, fixed positioning rod; 328, movable positioning groove; 330, shielding assembly; 331, printing fixed bin; 332, thermal printing end; 333, sliding groove; 334, sliding resistance block; 335, self-bending spring piece; 336, shielding protective film; 337, guide round rod; 338, spring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] Unless otherwise defined, all technical and scientific terms used in the specification of the present invention have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in the specification of the present invention includes any and all combinations of one or more related listed items.

[0024] Combine the following Figure 1-11 The RFID label printer of the present invention includes: a printer housing 100, a label roll placement bin 200 is fixedly connected to the inside of the printer housing 100, an internal controller 110 is arranged below the label roll placement bin 200, and the internal controller 110 is installed inside the printer housing 100; a printing mechanism 300, the printing mechanism 300 is arranged inside the printer housing 100, the lower end of the printing mechanism 300 extends to one side of the label roll placement bin 200, and the printing mechanism 300 is away from the side of the label roll placement bin 200 and penetrates to the outside of the printer housing 100; wherein the printing mechanism 300 includes a smoothing component 310 arranged inside the printer housing 100, a shielding component 330 is arranged below the smoothing component 310, and the shielding component 330 is located on one side of the label roll placement bin 200, and the smoothing component 310 and the shielding component 330 are both provided with anti-wrinkle components 320 on the side away from the label roll placement bin 200, and the two anti-wrinkle components 320 are installed on the side of the printer housing 100; like Figure 1-Figure 5As shown, the smoothing assembly 310 includes an upper body 311 fixedly connected to the inner wall of the label roll placement bin 200, the lower end of the upper body 311 penetrates into the interior of the printer housing 100, the upper body 311 is rotatably connected to a rotating shaft 312, the rotating shaft 312 is located inside the printer housing 100, a rotating inner groove 317 is provided on the side of the upper body 311 close to the shielding assembly 330, a fixed connecting roller 315 is provided inside the rotating inner groove 317, the fixed connecting roller 315 is fixedly connected to the middle of the surface of the rotating shaft 312, and two abutting rolling plates 316 are fixedly connected to the surface of the fixed connecting roller 315. Positioning grooves 313 are provided on both sides of the upper body 311, and a side positioning frame 314 is clamped inside the positioning groove 313, and the side positioning frame 314 is rotatably connected to the surface of the rotating shaft 312 close to the end, and one side of the positioning groove 313 contacts the surface of the shielding assembly 330. The abutting roll plate 316 is spiral, and the spiral directions of the two abutting roll plates 316 are opposite; When the label is printed and moved outward, the resisting roll plate 316 can resist the label, so that the label moves toward the inclined surface of the printing fixed bin 331. At the same time, since the rotating shaft 312 rotates inside the upper body 311, the resisting roll plate 316 rotates with the label, and the fixed connecting roller 315 drives the rotating shaft 312 to rotate synchronously. Since the material of the resisting roll plate 316 can be soft silicone or foam sponge, the specific material can be appropriately adjusted according to the actual usage. Since the two resisting roll plates 316 are distributed on the surface of the fixed connecting roller 315, when the fixed connecting roller 315 rotates, the resisting roll plates 316 rotate synchronously. When the two resisting roll plates 316 rotate, when they are attached to the label, the wrinkles of the label are unfolded to the two ends, so that the label tends to be flat when printing, and the good printing effect of the label is maintained. like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8As shown, the shielding assembly 330 includes a printing fixed bin 331 fixedly connected to the inner wall of the printer housing 100, a thermal printing end 332 is fixedly connected to the inner wall of the printing fixed bin 331, the surface of the thermal printing end 332 penetrates to the outer side of the printing fixed bin 331 away from the inner wall of the printer housing 100, two sliding grooves 333 are provided on the inclined surface of the printing fixed bin 331, a sliding block 334 is slidably connected to the inner wall of the sliding groove 333, a self-bending spring piece 335 is fixedly connected to the surface of the sliding block 334 away from the inner wall of the printer housing 100, and a shielding protective film 336 is fixedly connected to the side of the two self-bending spring pieces 335 close to the printing fixed bin 331. A guide round rod 337 is fixedly connected to the upper end of the printing fixed bin 331, a spring 338 is sleeved on the surface of the guide round rod 337, and the upper end of the spring 338 is fixedly connected to the inner top wall of the printing fixed bin 331. The sliding block 334 is away from one side of the bent spring sheet 335 and penetrates into the interior of the printing fixed chamber 331. The sliding block 334 is slidably connected to the surface of the adjacent guide round rod 337. The sliding block 334 is fixedly connected to the lower end of the spring 338. The label and the inclined surface of the printing fixed chamber 331 move outward, and the label is printed by the thermal printing end 332. After the printer housing 100 is opened, the sliding block 334 is driven to slide on the surface of the guide round rod 337 due to the action of the spring 338, so that the sliding block 334 moves up the inner wall of the sliding groove 333, and then the shielding protective film 336 is driven by the self-bending spring piece 335 to shield the printing end of the thermal printing end 332. Since the material of the self-bending spring piece 335 is elastic, the self-bending spring piece 335 is away from the sliding block 334. The end of the printing plate 34 is bent toward the printing fixed chamber 331, so that the printing end of the thermal printing end 332 will be less affected by external dust and impurities. When the printer housing 100 is closed, the side positioning frame 314 is pressed against the inclined surface of the printing fixed chamber 331 to form a positioning protection for the passing gap of the label, and at the same time, the pressing sliding block 334 is moved on the inner wall of the sliding groove 333. At this time, when the sliding block 334 moves, the shielding protective film 336 is driven by the self-bending spring piece 335 to expose the printing end of the thermal printing end 332, so as to maintain a good printing effect. like Figure 1 , Figure 2 , Figure 4 , Fig. 9 , Fig.10 , Fig.11As shown, the anti-wrinkle assembly 320 includes a protective shell 321 fixedly connected to the side of the printer housing 100, an extrusion airbag 322 is fixedly connected to the inner wall of the protective shell 321, a positioning and contacting plate 323 is fixedly connected to the side of the extrusion airbag 322 away from the inner wall of the protective shell 321, the positioning and contacting plate 323 is slidably connected to the inner wall of the protective shell 321, a sliding translation plate 324 is slidably connected to the side of the positioning and contacting plate 323 away from the printer housing 100, and a plurality of tearing tines 326 are embedded and installed on the side of the sliding translation plate 324 away from the positioning and contacting plate 323, and the tips of the tearing tines 326 penetrate the outside of the protective shell 321. A plurality of guide translation grooves 325 are opened on the side of the positioning and contacting plate 323 close to the sliding translation plate 324, and the plurality of guide translation grooves 325 are evenly distributed in a straight line along one side of the positioning and contacting plate 323, and the sliding translation plate 324 is slidably connected to the inner wall of the guide translation grooves 325. A movable positioning groove 328 is formed at one end of the positioning and contacting plate 323 close to the extrusion airbag 322. A fixed positioning rod 327 is slidably connected to the inner wall of the movable positioning groove 328. The fixed positioning rod 327 is fixedly connected to the inner wall of the protective shell 321. The extrusion airbag 322 is sleeved on the surface of the fixed positioning rod 327. When the printed label is torn off, the printed label and one of the positioning and contact plates 323 are pressed against each other. When the positioning and contact plate 323 is pressed, the extrusion airbag 322 is squeezed. At this time, the area of ​​the extrusion airbag 322 close to the positioning and contact plate 323 is squeezed, so that the positioning and contact plate 323 moves part of the gas to the sliding translation plate 324, thereby expanding the extrusion airbag 322 close to the sliding translation plate 324, thereby moving the sliding translation plate 324 toward the internal controller 110. At this time, the sliding translation plate 324, under the action of the guide translation groove 325, makes the tip of the tearing tooth 326 move as a whole toward the label. Since the tip of the tearing tooth 326 is set to an inclined state, and the inclination angle of the tip forms an acute angle with the straight pull label, the label is convenient to tear, and the offset wrinkles of the unprinted part of the label inside the printer housing 100 during the label tearing process are reduced, thereby ensuring the label printing effect.

[0025] Working principle: When the printer housing 100 is opened, the spring 338 drives the sliding block 334 to slide on the surface of the guide rod 337, and the sliding block 334 moves up along the inner wall of the sliding groove 333, and the self-bending spring piece 335 drives the shielding protective film 336 to shield the printing end of the thermal printing end 332, and the self-bending spring piece 335 is bent toward the printing fixed bin 331 away from the end of the sliding block 334, and the label roll is placed in the label roll placement bin 200, and the end label is taken out, and the printed label moves outward to contact the roll plate 316 and the label is in contact. The label moves along the inclined surface of the printing fixed bin 331, the rotating shaft 312 rotates the inside of the upper body 311, the contact roll plate 316 rotates with the label, the fixed connecting roller 315 drives the rotating shaft 312 to rotate synchronously, the two contact roll plates 316 are symmetrically distributed along the middle of the fixed connecting roller 315, and the two contact roll plates 316 are attached to the label when rotating, and the wrinkles of the label are unfolded to the two ends to be flat, and the label moves along the inclined surface of the printing fixed bin 331 to the outside of the printing housing 100, and the thermal printing end 332 prints the label; When the printer housing 100 is closed, the side positioning frame 314 abuts against the inclined surface of the printing fixed chamber 331 to form a positioning protection for the gap of the label, and the sliding abutment block 334 moves on the inner wall of the sliding groove 333, so that the self-bending spring sheet 335 drives the shielding protective film 336 to expose the printing end of the thermal printing end 332. When the label is printed and torn off, the printed label abuts against one of the positioning abutment plates 323, and the positioning abutment plate 323 is abutted to squeeze the airbag 322, squeezing the airbag 322 close to the positioning The area of ​​the resistance plate 323 is squeezed, and the squeezing airbag 322 expands near the sliding translation plate 324 area. The sliding translation plate 324 moves toward the internal controller 110. The sliding translation plate 324, through the action of the guide translation groove 325, makes the tip of the tearing tooth 326 move as a whole toward the label direction. The tearing tooth 326 makes it easy to tear the label, and also reduces the offset wrinkles of the unprinted part of the label inside the printer housing 100 during the label tearing process, thereby ensuring the label printing effect.

[0026] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An RFID label printer, characterized in that: include: A printer housing (100), wherein a label roll placement bin (200) is fixedly connected to the inside of the printer housing (100), an internal controller (110) is arranged below the label roll placement bin (200), and the internal controller (110) is installed inside the printer housing (100); A printing mechanism (300), the printing mechanism (300) being arranged inside the printer housing (100), the lower end of the printing mechanism (300) extending to one side of the label roll placement bin (200), and the printing mechanism (300) being away from the side of the label roll placement bin (200) and penetrating to the outside of the printer housing (100); The printing mechanism (300) comprises a smoothing component (310) arranged inside a printer housing (100); a shielding component (330) is arranged below the smoothing component (310); the shielding component (330) is located on one side of a label roll placement bin (200); an anti-wrinkle component (320) is arranged on the side of the smoothing component (310) and the shielding component (330) away from the label roll placement bin (200); and two anti-wrinkle components (320) are installed on the side of the printer housing (100).

2. The RFID label printer according to claim 1, characterized in that: The smoothing component (310) comprises an upper body (311) fixedly connected to the inner wall of the label roll placement bin (200), the lower end of the upper body (311) penetrates into the interior of the printer housing (100), the upper body (311) is rotatably connected to a rotating shaft (312) inside, the rotating shaft (312) is located inside the printer housing (100), a rotating inner groove (317) is provided on the side of the upper body (311) close to the shielding component (330), a fixed connecting roller (315) is provided inside the rotating inner groove (317), the fixed connecting roller (315) is fixedly connected to the middle part of the surface of the rotating shaft (312), and two abutting rolling plates (316) are fixedly connected to the surface of the fixed connecting roller (315).

3. The RFID label printer according to claim 1, characterized in that: The shielding component (330) comprises a printing fixed chamber (331) fixedly connected to the inner wall of the printer housing (100); a thermal printing end (332) is fixedly connected to the inner wall of the printing fixed chamber (331); a surface of the thermal printing end (332) extends to the outer side of the printing fixed chamber (331) away from the inner wall of the printer housing (100); two sliding grooves (333) are provided on the inclined surface of the printing fixed chamber (331); a sliding stopper (334) is slidably connected to the inner wall of the sliding groove (333); a self-bending spring sheet (335) is fixedly connected to the surface of the sliding stopper (334) away from the inner wall of the printer housing (100); and a shielding protective film (336) is fixedly connected to one side of the two self-bending spring sheets (335) close to the printing fixed chamber (331).

4. The RFID label printer according to claim 1, characterized in that: The anti-wrinkle component (320) comprises a protective shell (321) fixedly connected to the side of the printer housing (100); an extrusion airbag (322) is fixedly connected to the inner wall of the protective shell (321); a positioning contact plate (323) is fixedly connected to the side of the extrusion airbag (322) away from the inner wall of the protective shell (321); the positioning contact plate (323) is slidably connected to the inner wall of the protective shell (321); a sliding translation plate (324) is slidably connected to the side of the positioning contact plate (323) away from the printer housing (100); a plurality of tearing tines (326) are embedded and installed on the side of the sliding translation plate (324) away from the positioning contact plate (323); the tips of the tearing tines (326) penetrate the outside of the protective shell (321).

5. The RFID label printer according to claim 2, characterized in that: Positioning grooves (313) are provided on both sides of the upper body (311), and a side positioning frame (314) is clamped inside the positioning groove (313). The side positioning frame (314) is rotatably connected to a surface of the rotating shaft (312) close to the end, and one side of the positioning groove (313) is in contact with the surface of the shielding component (330).

6. The RFID label printer according to claim 5, characterized in that: The abutting rolling plates (316) are spiral-shaped, and the spiral directions of the two abutting rolling plates (316) are opposite.

7. The RFID label printer according to claim 3, characterized in that: The upper end of the printing fixed bin (331) is fixedly connected to a guide round rod (337), the surface of the guide round rod (337) is sleeved with a spring (338), and the upper end of the spring (338) is fixedly connected to the inner top wall of the printing fixed bin (331).

8. The RFID label printer according to claim 7, characterized in that: The sliding block (334) extends from one side of the self-bending spring sheet (335) to the inside of the printing fixed chamber (331), and the sliding block (334) is slidably connected to the surface of the adjacent guide round rod (337). The sliding block (334) is fixedly connected to the lower end of the spring (338).

9. The RFID label printer according to claim 4, characterized in that: A plurality of guide translation grooves (325) are provided on one side of the positioning contact plate (323) close to the sliding translation plate (324); the plurality of guide translation grooves (325) are evenly distributed in a straight line along one side of the positioning contact plate (323); and the sliding translation plate (324) is slidably connected to the inner wall of the guide translation grooves (325).

10. The RFID label printer according to claim 9, characterized in that: A movable positioning groove (328) is formed at one end of the positioning contact plate (323) close to the extrusion airbag (322); a fixed positioning rod (327) is slidably connected to the inner wall of the movable positioning groove (328); the fixed positioning rod (327) is fixedly connected to the inner wall of the protective shell (321); and the extrusion airbag (322) is sleeved on the surface of the fixed positioning rod (327).

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