Printer label sensing device

Abstract

The utility model discloses a printer label sensing device which comprises a supporting frame and a bearing frame, the bearing frame is installed at the top end of the supporting frame, a connecting block is installed on the side wall of the bearing frame, a servo motor is installed on the side wall of the connecting block, pin shafts are movably installed on the side walls, on the two sides of the servo motor, of the connecting block, and the pin shafts are movably installed on the side walls, on the two sides of the servo motor, of the bearing frame. And a transmission gear is installed at the output end of the servo motor, the surface of the pin shaft is sleeved with a driven gear, the transmission gear is meshed with the driven gear, a fixing frame is installed on the side wall of the driven gear, a moving frame is arranged on one side of the fixing frame, and a moving motor is installed on the side wall of the moving frame. According to the utility model, the number of labels can be counted by rotating photoelectric induction conveniently, the surfaces of the labels can be rotated and moved to adjust induction detection conveniently, and the convenience of induction detection and the effect of label printing are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of induction devices, and particularly relates to a printer label induction device. Background Technique

[0002] A label printer is a special printer that can be used to print labels, barcodes, etc. Different from general printers, label printers usually use thermal or thermal transfer technology, and the printed labels have high quality and can remain unfaded or damaged for a long time. Because label printers are time-saving, labor-saving and efficient, more and more enterprises begin to use label printers for label printing in production and logistics. At the same time, with the development of technology, label printers are also constantly progressing and developing, greatly improving production efficiency and operation convenience. The label printer is internally equipped with an induction device, which is mainly used to sense the quantity of labels to prevent the print head from making empty prints. Most traditional induction devices are fixedly installed and cannot be adjusted for induction. In order to better use the induction device, a printer label induction device is proposed.

[0003] As disclosed in a color mark sensor installation structure of a label printer with the authorization announcement number CN216300547U, it includes two mounting brackets respectively arranged on opposite sides of the travel path of the printing substrate, a cross beam with two ends respectively fixed on the two mounting brackets, and a movable seat assembled on the cross beam for fixing the color mark sensor. The whole cross beam or the part in contact with the movable seat is made of a material that can be magnetically adsorbed by a magnet. A magnet is fixed on the movable seat, and the movable seat is positioned on the cross beam by magnetic adsorption of the magnet.

[0004] Although the above-mentioned disclosed patent can conveniently and quickly adjust the installation position of the color mark sensor and improve the accuracy of the color mark sensor detecting the position of the color mark, it does not solve the problem that the existing induction device is not convenient for quickly rotating and counting the number of photoelectrically induced labels during use, is not conducive to rotating and moving the label surface for adjusting induction detection, and affects the convenience of induction detection and the effect of label printing. Content of the Utility Model

[0005] The purpose of the utility model is to provide a printer label induction device to solve the problems raised in the above background technique that the induction device is not convenient for quickly rotating and counting the number of photoelectrically induced labels, is not conducive to rotating and moving the label surface for adjusting induction detection, and affects the convenience of induction detection and the effect of label printing.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A printer label induction device, including a support frame and a carrier frame. The top end of the support frame is installed with a carrier frame. A connection block is installed on the side wall of the carrier frame. A servo motor is installed on the side wall of the connection block. Pin shafts are movably installed on the side walls of the connection block on both sides of the servo motor. The output end of the servo motor is installed with a driving gear. Driven gears are sleeved on the surfaces of the pin shafts. And the driving gear meshes with the driven gears. Fixed frames are installed on the side walls of the driven gears. A movable frame is provided on one side of each fixed frame. A movable motor is installed on the side wall of each movable frame. The output ends of the movable motors are installed with threaded rods. Threaded sleeves are sleeved on the surfaces of the threaded rods. And the threaded sleeves are threadedly connected with the threaded rods. And the threaded sleeves are connected with the fixed frames. Slide rods are installed inside the movable frames on one side of the threaded rods. And the slide rods are slidably connected with the fixed frames. Visual cameras are installed on the outer walls of the movable frames. A placement rack is installed on one side of the support frame. A label roller is movably installed on the top end of the placement rack.

[0007] Preferably, an electric push rod is movably installed inside the support frame. The output end of the electric push rod is installed with a push arm.

[0008] Preferably, a rotating frame is installed at one end of the push arm away from the electric push rod. A hinge shaft is installed at one end of the rotating frame close to the push arm. And the rotating frame is movably connected with the push arm through the hinge shaft.

[0009] Preferably, movable shafts are symmetrically installed on the side wall of the rotating frame. And the rotating frame is movably connected with the support frame through the movable shafts.

[0010] Preferably, a tensioning roller is installed at one end of the rotating frame away from the movable shaft. And the tensioning roller is movably connected with the rotating frame.

[0011] Preferably, a left limit roller is movably installed inside the support frame above the electric push rod. A right limit roller is movably installed inside the support frame on one side of the left limit roller.

[0012] Preferably, a label body is installed on the surface of the label roller. And the label body extends to the upper surface of the right limit roller. And the label body extends to the lower surface of the left limit roller and the upper surface of the tensioning roller.

[0013] Preferably, a U-groove photoelectric sensor is installed at one end of the right limit roller. And the U-groove photoelectric sensor is fixedly connected with the right limit roller.

[0014] Compared with the prior art, the beneficial effects of the present utility model are: This induction device not only realizes the convenient rotation and photoelectric induction counting of the number of labels, facilitates the rotation and movement adjustment of the label surface for induction detection, but also improves the convenience of induction detection and the effect of label printing. Brief Description of the Drawings

[0015] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional structure schematic diagram of the support frame of the present utility model;

[0017] Figure 3 is a front view sectional structure schematic diagram of the support frame of the present utility model;

[0018] Figure 4 is a three-dimensional structure schematic diagram of the connecting block of the present utility model;

[0019] Figure 5 is a three-dimensional structure schematic diagram of the right limit roller of the present utility model.

[0020] In the figure: 1, support frame; 2, placement rack; 3, label roller; 4, right limit roller; 5, moving rack; 6, vision camera; 7, label body; 8, bearing rack; 9, rotating rack; 10, tension roller; 11, left limit roller; 12, electric push rod; 13, push arm; 14, hinge shaft; 15, movable shaft; 16, connecting block; 17, servo motor; 18, driving gear; 19, driven gear; 20, moving motor; 21, sliding rod; 22, threaded rod; 23, fixed frame; 24, threaded sleeve; 25, pin shaft; 26, U-groove photoelectric sensor. Detailed Description of the Preferred Embodiment

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5, an embodiment provided by the present utility model: a printer label sensing device, including a support frame 1 and a carrier frame 8. The top end of the support frame 1 is installed with a carrier frame 8. A connecting block 16 is installed on the side wall of the carrier frame 8. A servo motor 17 is installed on the side wall of the connecting block 16, and the servo motor 17 plays a role of power drive. Pin shafts 25 are movably installed on the side walls of the connecting blocks 16 on both sides of the servo motor 17. The output end of the servo motor 17 is installed with a transmission gear 18. Driven gears 19 are sleeved on the surfaces of the pin shafts 25, and the transmission gear 18 meshes with the driven gears 19. Fixed frames 23 are installed on the side walls of the driven gears 19. A moving frame 5 is provided on one side of each fixed frame 23. Moving motors 20 are installed on the side walls of the moving frames 5, and the moving motors 20 play a role of power drive. The output ends of the moving motors 20 are all installed with threaded rods 22. Threaded sleeves 24 are sleeved on the surfaces of the threaded rods 22, and the threaded sleeves 24 are threadedly connected to the threaded rods 22 and are connected to the fixed frames 23. Slide rods 21 are installed inside the moving frames 5 on one side of the threaded rods 22, and the slide rods 21 are slidably connected to the fixed frames 23. Visual cameras 6 are installed on the outer walls of the moving frames 5. A placement rack 2 is installed on one side of the support frame 1. A label roller 3 is movably installed at the top end of the placement rack 2.

[0023] When the printer is in use, first install the device inside the printer. Install the label roll 3 on the placement rack 2, and install the label body 7 to the print head position through the upper surface of the right limit roller 4, the lower surface of the left limit roller 11, and the upper surface of the tension roller 10. At the same time, connect the device to the controller of the printer. The driving mechanism inside the printer drives the label body 7 to move, and the print head completes the printing operation on the label body 7. During the printing process, since the label body 7 is closely attached to the upper surface of the right limit roller 4, the label body 7 will drive the right limit roller 4 to rotate when moving. The right limit roller 4 drives the U-groove photoelectric sensor 26 to rotate. The U-groove photoelectric sensor 26 counts the number of rotations of the right limit roller 4 to calculate the number of labels. The U-groove photoelectric sensor 26 is a product of the same type as Omron EE-SX1330. Its working principle is based on an infrared emitter and a receiver installed face to face on both sides of a groove, forming a groove-shaped structure. When there is no obstruction, the light receiver can receive the infrared light or visible light emitted by the emitter. When the detected object passes through the groove, the light is blocked, causing the photoelectric switch to act, outputting a switch control signal to cut off or connect the load current, thus completing a control action to obtain data. At the same time, turn on the vision camera 6. The vision camera 6 performs visual detection on the surface of the label body 7 to detect whether there are stains or damages on the surface of the label body 7. Turn on the servo motor 17. The servo motor 17 drives the transmission gear 18 to rotate. Under the mutual meshing of the transmission gear 18 and the driven gear 19, the transmission gear 18 drives the driven gear 19 to rotate around the pin shaft 25. The driven gear 19 drives the moving frame 5 and the vision camera 6 to rotate through the fixed frame 23. The vision camera 6 performs angle rotation adjustment detection on the label body 7. At the same time, turn on the moving motor 20. The moving motor 20 drives the threaded rod 22 to rotate. Under the threaded connection of the threaded rod 22 and the threaded sleeve 24, and the sliding fit of the sliding rod 21 and the fixed frame 23, the threaded rod 22 drives the moving frame 5 and the vision camera 6 to move, to perform position movement adjustment on the vision camera 6, thereby performing position movement adjustment detection on the label body 7, realizing convenient rotation photoelectric induction counting of the number of labels, facilitating rotation and movement adjustment induction detection of the label surface, and improving the convenience of induction detection.

[0024] An electric push rod 12 is movably installed inside the support frame 1. The electric push rod 12 plays a role in power driving. The output end of the electric push rod 12 is installed with a push arm 13. One end of the push arm 13 away from the electric push rod 12 is installed with a rotating frame 9. One end of the rotating frame 9 close to the push arm 13 is installed with a hinge shaft 14, and the rotating frame 9 is movably connected to the push arm 13 through the hinge shaft 14.

[0025] On the side wall of the rotating frame 9, movable shafts 15 are symmetrically installed, and the rotating frame 9 is movably connected to the support frame 1 through the movable shafts 15. One end of the rotating frame 9 away from the movable shaft 15 is provided with a tension roller 10, and the tension roller 10 is movably connected to the rotating frame 9.

[0026] Inside the support frame 1 above the electric push rod 12, a left limit roller 11 is movably installed, and inside the support frame 1 on one side of the left limit roller 11, a right limit roller 4 is movably installed.

[0027] On the surface of the label roller 3, a label body 7 is installed, and the label body 7 extends to the upper surface of the right limit roller 4, and the label body 7 also extends to the lower surface of the left limit roller 11 and the upper surface of the tension roller 10.

[0028] One end of the right limit roller 4 is provided with a U-groove photoelectric sensor 26, and the U-groove photoelectric sensor 26 is fixedly connected to the right limit roller 4.

[0029] If the label body 7 becomes loose during the printing process, open the electric push rod 12. The electric push rod 12 drives the push arm 13 to move. The push arm 13 drives the rotating frame 9 to rotate around the movable shaft 15 through the hinge shaft 14. The rotating frame 9 drives the tension roller 10 to rotate. With the mutual cooperation of the right limit roller 4 and the left limit roller 11, the tension roller 10 contacts the lower surface of the label body 7 and tightens the label body 7 to increase the flatness of the label body 7 and improve the label printing effect.

[0030] Working principle: First, install the device inside the printer. Install the label roller 3 on the placement rack 2, and install the label body 7 to the print head position through the upper surface of the right limit roller 4, the lower surface of the left limit roller 11, and the upper surface of the tension roller 10. At the same time, connect the device to the controller of the printer. The driving mechanism inside the printer drives the label body 7 to move, and the print head completes the printing operation on the label body 7. During the printing process, since the label body 7 is closely attached to the upper surface of the right limit roller 4, the label body 7 will drive the right limit roller 4 to rotate when moving. The right limit roller 4 drives the U-groove photoelectric sensor 26 to rotate, and the U-groove photoelectric sensor 26 counts the number of rotations of the right limit roller 4 to calculate the number of labels. The vision camera 6 performs visual inspection on the surface of the label body 7 to detect whether there are stains or damages on the surface of the label body 7. The servo motor 17 drives the transmission gear 18 to rotate, the transmission gear 18 drives the driven gear 19 to rotate around the pin shaft 25, and the driven gear 19 drives the moving frame 5 and the vision camera 6 to rotate through the fixed frame 23. The vision camera 6 performs angle rotation adjustment detection on the label body 7. The moving motor 20 drives the threaded rod 22 to rotate, and the threaded rod 22 drives the moving frame 5 and the vision camera 6 to move to perform position movement adjustment on the vision camera 6, thereby performing position movement adjustment detection on the label body 7. If the label body 7 becomes loose during the printing process, the electric push rod 12 drives the push arm 13 to move, the push arm 13 drives the rotating frame 9 to rotate around the movable shaft 15 through the hinge shaft 14, the rotating frame 9 drives the tension roller 10 to rotate, and the tension roller 10 contacts the lower surface of the label body 7 and tightens the label body 7 to increase the flatness of the label body 7 and improve the label printing effect.

Claims

1. A printer label sensing device, comprising a support frame (1) and a carrier frame (8), characterized in that: A carrier frame (8) is installed at the top of the support frame (1). A connecting block (16) is installed on the side wall of the carrier frame (8). A servo motor (17) is installed on the side wall of the connecting block (16). Pin shafts (25) are movably installed on the side walls of the connecting block (16) on both sides of the servo motor (17). A transmission gear (18) is installed at the output end of the servo motor (17). Driven gears (19) are sleeved on the surfaces of the pin shafts (25), and the transmission gear (18) meshes with the driven gears (19). Fixed frames (23) are installed on the side walls of the driven gears (19). A moving frame (5) is arranged on one side of each fixed frame (23). Moving motors (20) are installed on the side walls of the moving frames (5). Threaded rods (22) are installed at the output ends of the moving motors (20). Threaded sleeves (24) are sleeved on the surfaces of the threaded rods (22), and the threaded sleeves (24) are in threaded connection with the threaded rods (22) and are connected to the fixed frames (23). Slide rods (21) are installed inside the moving frames (5) on one side of the threaded rods (22), and the slide rods (21) are slidably connected to the fixed frames (23). Vision cameras (6) are installed on the outer walls of the moving frames (5). A placement rack (2) is installed on one side of the support frame (1). A label roller (3) is movably installed at the top of the placement rack (2).

2. The printer label sensing device according to claim 1, characterized in that: An electric push rod (12) is movably installed inside the support frame (1). A push arm (13) is installed at the output end of the electric push rod (12).

3. The printer label sensing device according to claim 2, wherein: One end of the push arm (13) away from the electric push rod (12) is installed with a rotating frame (9). A hinge shaft (14) is installed at one end of the rotating frame (9) close to the push arm (13), and the rotating frame (9) is movably connected to the push arm (13) through the hinge shaft (14).

4. A printer label sensing device according to claim 3, characterized in that: Moving shafts (15) are symmetrically installed on the side wall of the rotating frame (9), and the rotating frame (9) is movably connected to the support frame (1) through the moving shafts (15).

5. A printer label sensing device according to claim 3, characterized in that: One end of the rotating frame (9) away from the moving shaft (15) is installed with a tension roller (10), and the tension roller (10) is movably connected to the rotating frame (9).

6. The printer label sensing device according to claim 2, wherein: A left limit roller (11) is movably installed inside the support frame (1) above the electric push rod (12). A right limit roller (4) is movably installed inside the support frame (1) on one side of the left limit roller (11).

7. The printer label sensing device according to claim 1, characterized in that: A label body (7) is installed on the surface of the label roller (3), and the label body (7) extends to the upper surface of the right limit roller (4), and the label body (7) extends to the lower surface of the left limit roller (11) and the upper surface of the tension roller (10).

8. A printer label sensing device according to claim 6, characterized in that: A U-groove photoelectric sensor (26) is installed at one end of the right limit roller (4), and the U-groove photoelectric sensor (26) is fixedly connected to the right limit roller (4).

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