Internal labeling mechanism

Abstract

The present invention discloses an internal labeling mechanism, comprising a labeling frame, a printer, a negative pressure suction nozzle, a labeling lifting drive device, and a label attaching drive device; the printer is mounted on the labeling frame for printing labels; a labeling rotary drive device is movable up and down relative to the labeling frame; the negative pressure suction nozzle is mounted on the labeling rotary drive device and is driven by the labeling rotary drive device to flip, and is used to absorb labels from the printer in a horizontal state and rotate to a vertical state; the labeling lifting drive device is mounted on the labeling frame, and is used to drive the labeling rotary drive device to move up and down, extending the negative pressure suction nozzle into a paper tube located below the labeling rotary drive device; and the label attaching drive device drives the labeling rotary drive device to move horizontally, and is used to attach the label on the negative pressure suction nozzle to the paper tube. The present invention can automatically attach labels to paper tubes, and the attached labels will not disappear with the use of paper, nor will they be covered by stacking paper.

Description

Technical Field

[0001] The invention relates to an inner labeling mechanism, belonging to the technical field of paper roll processing. Background Art

[0002] The label of the paper roll is usually affixed to the outer surface of the paper roll or the end surface of the paper roll. The label affixed to the outer surface of the paper roll (i.e. the surface of the paper, such as one end of the paper) will disappear as the paper is used. After the outermost circle of the paper roll is used up, the label will inevitably be removed with the use of the paper. If you want to check or detect the label to obtain the information of the paper, you will have no way to check it because the label on the paper roll has disappeared. Instead, the label is affixed to the end of the paper roll. Since the paper rolls are stacked from top to bottom to reduce the space they occupy, when stacked like this, except for the top paper roll, Except for the labels that are exposed for detection, the labels on the other paper rolls at the bottom cannot be detected due to the obstruction of the upper paper roll. The solution to the above problem is to post the labels in the paper tube at the center of the paper roll. During detection, a machine can be used to reach into the paper tube to detect the labels. However, there is currently no machine that can post labels in paper tubes. Manual posting requires a lot of manpower, high labor costs, and continuous investment of manpower, which is poor in economy. Therefore, the labels on the current paper rolls are still posted on the outer surface or end face of the paper by machines. Summary of the Invention

[0003] The purpose of the present invention is to provide an inner labeling mechanism to solve the technical defect in the prior art that the label of a paper roll is attached to the outer surface or end face of the paper roll and is difficult to detect.

[0004] To solve the above problems, the technical solution adopted by the present invention is: an internal labeling mechanism, including a labeling frame; a printer, the printer is installed on the labeling frame for printing labels; a labeling rotary drive device, the labeling rotary drive device moves up and down relative to the labeling frame; a negative pressure suction nozzle, the negative pressure suction nozzle is installed on the labeling rotary drive device and is driven to flip by the labeling rotary drive device, and is used to absorb the label from the printer in a horizontal state and rotate it to a vertical state; a labeling lifting drive device, the labeling lifting drive device is installed on the labeling frame, and is used to drive the labeling rotary drive device to move up and down, and extend the negative pressure suction nozzle into the paper tube located below the labeling rotary drive device; a label fitting drive device, the label fitting drive device drives the labeling rotary drive device to move horizontally, and is used to fit the label on the negative pressure suction nozzle into the paper tube. The printer in the present invention directly prints out the label, and the label printed out by the negative pressure suction nozzle is used to transfer the label from the printer to the paper tube and stick it in the paper tube. The labeling rotary drive device rotates, and when it is in a horizontal state, it sticks into the paper tube when it is turned to a vertical state. The labeling lifting drive device drives the labeling lifting drive device and the negative pressure suction nozzle installed on the labeling lifting drive device to lift and lower, so that the negative pressure suction nozzle with the label stuck on it can be stretched into the paper tube and the negative pressure suction nozzle that has lost the label can be pulled out of the paper tube after labeling, avoiding interference with the transportation of the paper tube. The present invention realizes automatic labeling in the paper tube. Compared with the prior art of labeling the outer surface or end face of the paper roll, the label will not disappear with the use of the paper roll, nor will it be covered by the stacking of paper rolls. The machine can detect the label by stretching it into the paper tube.

[0005] As a further improvement of the present invention, the labeling lifting drive device is a labeling lifting drive cylinder, the cylinder body of the labeling lifting drive cylinder is installed on the labeling frame and forms a horizontal moving pair with the labeling frame, and the piston rod of the labeling lifting drive cylinder is set downward and extends vertically; the labeling rotation drive device is a labeling rotary cylinder, the cylinder body of the labeling rotary cylinder is connected to the piston rod of the labeling lifting drive cylinder, and moves vertically with the extension and contraction of the piston rod of the labeling lifting drive cylinder, the piston rod of the labeling rotary cylinder is set horizontally, the negative pressure suction nozzle is installed on the piston rod of the labeling rotary cylinder and flips with the rotation of the piston rod of the labeling rotary cylinder; the label fitting drive device is a label fitting drive cylinder, the label fitting drive cylinder is installed on the labeling frame, and is used to drive the labeling lifting drive cylinder to slide horizontally on the labeling frame. The present invention uses the labeling lifting drive cylinder to drive the negative pressure suction nozzle to lift, the labeling rotation cylinder to drive the negative pressure suction nozzle to rotate, and the label fitting drive cylinder to drive the negative pressure suction nozzle to slide horizontally. The entire drive is relatively easy to implement and each action is easy to control.

[0006] As a further improvement of the present invention, it also includes a labeling rotary cylinder mounting plate, the cylinder body of the labeling rotary cylinder is mounted on the lower surface of the labeling rotary cylinder mounting plate, and the piston rod of the labeling lifting drive cylinder is connected to the upper surface of the labeling rotary cylinder mounting plate; and a labeling guide rod, the number of which is more than one, the bottom end of which is connected to the upper surface of the labeling rotary cylinder mounting plate, and the labeling guide rod passes upward through the labeling frame and moves vertically relative to the labeling frame. The present invention provides a labeling rotary cylinder mounting plate to facilitate the installation of the labeling rotary cylinder and the connection between the labeling rotary cylinder and the piston rod of the labeling lifting drive cylinder. The present invention provides a labeling guide rod to guide the up and down movement of the negative pressure suction nozzle, ensuring the vertical movement of the negative pressure suction nozzle.

[0007] As a further improvement of the present invention, it also includes a labeling lifting cylinder mounting plate, the labeling lifting cylinder mounting plate is slidably mounted on the labeling frame, the label fitting drive cylinder drives the labeling lifting cylinder mounting plate to move horizontally, and the cylinder body of the labeling lifting drive cylinder is mounted on the labeling lifting cylinder mounting plate; the labeling guide sleeve, the number of labeling guide sleeves is equal to the number of labeling guide rods, and the bottom end thereof is arranged on the labeling lifting cylinder mounting plate, the labeling guide rod passes upward through the labeling lifting cylinder mounting plate and the labeling guide sleeve and vertically rises and falls in the labeling guide sleeve as the labeling rotating cylinder mounting plate moves vertically. The present invention provides a labeling lifting cylinder mounting plate to facilitate the installation of the labeling lifting drive cylinder and the sliding connection between the labeling lifting drive cylinder and the labeling frame. The present invention provides a labeling guide sleeve to cooperate with the labeling guide rod to guide the vertical movement of the negative pressure suction nozzle.

[0008] As a further improvement of the present invention, the present invention further includes a labeling guide rail mounted on the labeling machine frame; a labeling slider mounted on the bottom of the labeling lift cylinder mounting plate, the labeling slider cooperating with the labeling guide rail. The present invention utilizes the labeling guide rail and the labeling slider to facilitate the sliding connection between the labeling lift cylinder mounting plate and the labeling machine frame.

[0009] As a further improvement to the present invention, the label application drive cylinder is a rodless cylinder. The labeling slider is mounted on one end of the labeling lift cylinder mounting plate, and the other end of the labeling lift cylinder mounting plate is mounted on the slider of the label application drive cylinder. The present invention uses a rodless cylinder. The slider of the rodless cylinder itself is used to drive the sliding of the labeling lift cylinder mounting plate. In conjunction with the labeling slider and labeling guide rail, the labeling lift cylinder mounting plate is evenly stressed, which also facilitates the overall installation of the present invention.

[0010] As a further improvement of the present invention, it also includes a labeling paper roll centering device, which includes a labeling clamping and centering rod. There are two labeling clamping and centering rods, which are installed on the labeling machine frame and slide synchronously toward each other or away from each other on the labeling machine frame. The two labeling clamping and centering rods slide toward each other to push the paper tube toward the center; and a labeling centering drive device, which is used to drive the labeling clamping and centering rods to slide on the labeling machine frame. The present invention is provided with a labeling paper roll centering device, which is used to push the paper roll to the bottom of the negative pressure suction nozzle before labeling so that the inner label can be attached. The labeling centering drive device in the present invention drives the labeling clamping and centering rods to move toward each other, pushing the paper roll located between the two toward the center, thereby achieving centering of the paper roll.

[0011] As a further improvement of the present invention, it also includes a centering column, two centering columns are installed on each labeling clamping centering rod, the top of the centering column is connected to the labeling clamping centering rod, and the bottom end of the centering column is rotatably provided with one or more positioning sleeves; a centering drive slider, the centering drive slider is installed at one end of the labeling clamping centering rod, and the labeling centering drive device is connected to the centering drive slider to drive the centering drive slider to slide horizontally; a centering drive guide rail, the centering drive guide rail is installed on the labeling machine frame, and the centering drive slider is installed on the centering drive guide rail and slides on the centering drive guide rail. The present invention is provided with a centering column, which can increase the surface of the paper roll that is subjected to force in the vertical direction, so that the paper roll is subjected to force more evenly and will not tilt due to uneven force up and down. The positioning sleeve in the present invention effectively protects the paper on the paper roll from being damaged. The present invention adopts a centering drive slider to cooperate with the centering drive guide rail to facilitate the relative sliding of the labeling clamping centering rod and the labeling machine frame.

[0012] As a further improvement of the present invention, it also includes two swing arms, one end of each swing arm is rotationally connected to the two centering drive sliders, and the other end of each swing arm is rotationally connected by a labeling rotating shaft; the labeling centering drive device is a labeling centering cylinder, the cylinder body of the labeling centering cylinder is installed on the labeling machine frame, the free end of the piston rod of the labeling centering cylinder is connected to the labeling rotating shaft, and the piston rod of the labeling centering cylinder is extended and retracted to pull the two swing arms to rotate and drive the two centering drive sliders to slide on the centering drive guide rail. The present invention is provided with two swing arms, and the two swing arms are connected to the piston rod of the labeling centering cylinder. The extension and retraction of the piston rod of the labeling centering cylinder can cause the two swing arms to rotate, pushing the two labeling clamping centering rods to slide toward each other or away from each other at the same time. In the present invention, one labeling centering cylinder drives the two labeling clamping centering rods to slide at the same time, and the two have good synchronization and a simple overall structure.

[0013] As a further improvement to the present invention, the present invention further includes a centering guide rail mounted on the labeling machine frame, the length of which is aligned with the length of the piston rod of the labeling centering cylinder; a centering slider mounted on the centering guide rail and capable of sliding horizontally thereon; and a labeling connecting plate, one end of which is mounted on the centering slider and the other end of which is connected to the labeling rotating shaft. The present invention provides the centering guide rail and the centering slider so that the piston rod of the labeling centering cylinder can extend and retract along the length of the centering guide rail, thereby preventing deviation in the rotation of the two swing arms and improving the centering effect of the present invention on the paper roll.

[0014] In summary, the beneficial effects of the present invention are as follows: the present invention can realize automatic labeling in paper tubes. Compared with the prior art, the labels affixed by the present invention will not disappear with the use of paper, nor will they be covered by the stacking of paper, which facilitates the detection of labels. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from another angle.

[0017] Including: 1. Labeling frame; 2. Printer; 3. Labeling rotation drive device; 4. Negative pressure nozzle; 5. Labeling lifting drive device; 6. Labeling drive device; 7. Labeling rotation cylinder mounting plate; 8. Labeling guide rod; 9. Labeling lifting cylinder mounting plate; 10. Labeling guide sleeve; 11. Labeling guide rail; 12. Labeling slider; 13. Labeling clamping centering rod; 14. Labeling centering drive device; 15. Centering column; 16. Position sleeve; 17. Centering drive slider; 18. Centering drive guide rail; 19. Swing arm; 20. Labeling rotating shaft; 21. Centering guide rail; 22. Centering slider; 23. Labeling connecting plate; 24. Labeling support plate; 25. Labeling protrusion; 26. Rotating shaft; 27. Labeling support leg; 28. Labeling beam; 29. Labeling support beam; 30. Labeling column; 31. Labeling connecting rod; 32. Labeling cylinder mounting beam; 33. Labeling connecting beam. DETAILED DESCRIPTION

[0018] The following further describes specific embodiments of the present invention with reference to the accompanying drawings. In the present invention, paper is wound onto a paper tube to form a paper roll. Since the centerline of the entire paper roll coincides with the centerline of the paper tube after the paper is wound onto the paper tube, both paper roll centering and paper tube centering in the present invention refer to the centering of the paper tube.

[0019] Example 1

[0020] like Figure 1 and Figure 2The inner labeling mechanism shown includes a labeling frame 1, a printer 2, a labeling rotation drive device 3, a negative pressure suction nozzle 4, a labeling lifting drive device 5 and a label fitting drive device 6. The negative pressure suction nozzle 4 is connected to the exhaust device, and the printer 2 is installed on the labeling frame 1 for printing labels. The labeling rotation drive device 3 moves up and down relative to the labeling frame 1. The negative pressure suction nozzle 4 is installed on the labeling rotation drive device 3 and is driven by the labeling rotation drive device 3 to flip over, and is used to absorb the label from the printer 2 in a horizontal state and rotate it to a vertical state. The labeling lifting drive device 5 is installed on the labeling frame 1, and is used to drive the labeling rotation drive device 3 to move up and down, and extend the negative pressure suction nozzle 4 into the paper tube located below the labeling rotation drive device 3. The label fitting drive device 6 drives the labeling rotation drive device 3 to move horizontally, and is used to stick the label on the negative pressure suction nozzle 4 in the paper tube.

[0021] The labeling machine frame 1 described in the present invention includes a labeling frame and labeling legs 27. The labeling frame is formed by four labeling beams 28 connected end to end to form a rectangular structure. The number of the labeling legs 27 is four. The top ends of the four labeling legs 27 are connected to the bottom of the labeling frame to support the labeling frame. Two labeling support beams 29 are detachably installed on the top of the labeling frame with bolts. The two labeling support beams 29 are parallel, and a labeling support frame is installed on the two labeling support beams 29. The printer 2 is detachably installed on one end of the two support beams with bolts. The labeling rotation drive device 3, negative pressure suction nozzle 4, labeling lifting drive device 5 and label fitting drive device 6 are all installed on the labeling support frame. The labeling support frame includes four labeling columns 30 , two labeling columns 30 are installed on the top of each labeling support beam 29 , and the two labeling columns 30 on the same labeling support beam 29 are connected by two labeling connecting rods 31 .

[0022] The labeling lifting drive device 5 described in the present invention is a labeling lifting drive cylinder, the cylinder body of the labeling lifting drive cylinder is installed on the labeling frame 1 and forms a horizontal moving pair with the labeling support frame of the labeling frame 1, the piston rod of the labeling lifting drive cylinder is set downward and vertically extended and retracted, the labeling rotation drive device 3 is a labeling rotary cylinder, the cylinder body of the labeling rotary cylinder is connected to the piston rod of the labeling lifting drive cylinder, and moves vertically with the extension and retraction of the piston rod of the labeling lifting drive cylinder, the piston rod of the labeling rotary cylinder is horizontally arranged, the negative pressure suction nozzle 4 is installed on the piston rod of the labeling rotary cylinder and flips with the rotation of the piston rod of the labeling rotary cylinder, the label fitting drive device 6 is a label fitting drive cylinder, the label fitting drive cylinder is installed on the labeling frame 1, and is used to drive the labeling lifting drive cylinder to slide horizontally on the labeling frame 1. The negative pressure suction nozzle 4 of the present invention comprises a suction connecting rod and a suction block. One end of the suction connecting rod is connected to the piston rod of the labeling rotary cylinder. The suction block is mounted on the end of the suction connecting rod away from the labeling rotary cylinder and has multiple suction holes. The suction block is connected to the suction device via an air pipe. The suction device draws air from the suction block, creating a negative pressure within the suction block, which adsorbs the label to its surface. The labeling rotary cylinder described in the present invention can be a 90-degree rotating cylinder, which drives the negative pressure suction nozzle 4 to achieve 90-degree reciprocating rotation.

[0023] The specific structure of the present invention for connecting the labeling rotary cylinder and the labeling lifting drive cylinder piston rod is: a labeling rotary cylinder mounting plate 7 is provided, and the cylinder body of the labeling rotary cylinder is detachably mounted on the lower surface of the labeling rotary cylinder mounting plate 7 by bolts, and the piston rod of the labeling lifting drive cylinder is connected to the upper surface of the labeling rotary cylinder mounting plate 7. In order to ensure the vertical movement of the labeling rotary cylinder, the present invention is provided with a labeling guide rod 8. The number of the labeling guide rods 8 is more than one. The present invention preferably sets the number of the labeling guide rods 8 to two. The bottom end of the labeling guide rod 8 is connected to the upper surface of the labeling rotary cylinder mounting plate 7 (such as welding and fixing), and the labeling guide rod 8 passes upward through the labeling frame 1 and moves vertically relative to the labeling frame 1.

[0024] The present invention preferably also includes a labeling lifting cylinder mounting plate 9 and a labeling guide sleeve 10. The present invention adopts a labeling support plate 24 to be detachably connected to the two labeling columns 30 on each labeling support beam 29 by bolts. The labeling support plates 24 on the labeling columns 30 on the two labeling support beams 29 are arranged opposite to each other. The labeling support plates 24 include a horizontal labeling unit and a vertical labeling unit, wherein the top of the vertical labeling unit is fixedly connected to one end of the horizontal labeling unit (such as welded), and the vertical labeling unit is used to be detachably mounted on the labeling column 30 by bolts. One of the horizontal labeling units is provided with a labeling rectangular hole running through its upper and lower surfaces, and the other horizontal labeling unit extends from one end of its vertical labeling unit away from the horizontal labeling unit to the bottom of the horizontal labeling unit with the labeling rectangular hole to support it from the bottom, and a vertical support unit is provided on the top of the end of the horizontal labeling unit away from the vertical labeling unit so that the support plate 24 with the labeling rectangular hole can be fixed to the labeling column 30. The whole is Z-shaped. The labeling lifting cylinder mounting plate 9 described in the present invention is slidably mounted on a support plate 24 with a labeling rectangular hole. The label fitting driving cylinder drives the labeling lifting cylinder mounting plate 9 to move horizontally on a horizontal labeling unit of a support plate 24 with a labeling rectangular hole. The cylinder body of the labeling lifting driving cylinder is mounted on the labeling lifting cylinder mounting plate 9. The piston rod of the labeling lifting driving cylinder passes downward through the labeling rectangular hole to connect the labeling rotating cylinder mounting plate 7 located below the labeling support plate 24; the number of the labeling guide sleeves 10 described in the present invention is equal to the number of the labeling guide rods 8, and the bottom end of the labeling guide sleeves 10 is fixedly arranged (such as welding) on the labeling lifting cylinder mounting plate 9, and the through hole of the labeling guide sleeves 10 penetrates the labeling lifting cylinder mounting plate 9 downward, and the labeling guide rod 8 passes upward through the labeling lifting cylinder mounting plate 9 and the labeling guide sleeve 10 and rises and falls vertically in the labeling guide sleeve 10 with the vertical movement of the labeling rotating cylinder mounting plate 7.

[0025] In order to ensure the flexible sliding of the labeling lifting cylinder mounting plate 9, the present invention is also provided with a labeling guide rail 11 and a labeling slider 12. The labeling guide rail 11 is installed on the labeling frame 1, specifically, the labeling guide rail 11 is installed on the top of the vertical support unit, and the labeling slider 12 is installed at the bottom of the labeling lifting cylinder mounting plate 9. The labeling slider 12 cooperates with the labeling guide rail 11. The label fitting drive cylinder described in the present invention preferably adopts a rodless cylinder. The labeling slider 12 is installed at one end of the labeling lifting cylinder mounting plate 9, and the other end of the labeling lifting cylinder mounting plate 9 is installed on the slider of the label fitting drive cylinder. The slider of the label fitting drive cylinder slides to drive the labeling lifting cylinder mounting plate 9 and the labeling lifting drive cylinder installed on the labeling lifting cylinder mounting plate 9 to slide synchronously along the length direction of the labeling guide rail 11.

[0026] When the present invention is in use, the labeling rotating cylinder drives the negative pressure suction nozzle 4 to rotate toward the direction of the printer 2 to a horizontal state, and the label printed by the printer 2 is adsorbed on the negative pressure suction nozzle 4, and the labeling rotating cylinder then drives the negative pressure suction nozzle 4 to rotate downward 90 degrees to a vertical state, and the piston of the labeling lifting driving cylinder is extended to extend the negative pressure suction nozzle 4 into the paper tube located below it, and the label fitting driving cylinder drives the labeling lifting cylinder mounting plate 9 to move horizontally, so that the negative pressure suction nozzle 4 moves horizontally and the label is attached to the paper tube, and the label fitting driving cylinder is reset to separate the negative pressure suction nozzle 4 from the label, and the piston rod of the labeling lifting driving cylinder is contracted to pull the negative pressure suction nozzle 4 upward out of the paper tube, completing the labeling on a paper tube. The present invention can also directly drive the negative pressure suction nozzle 4 to move upward when the negative pressure suction nozzle 4 attaches the label to the paper tube, so that the label fitting is more stable. When the present invention is in use, a conveyor belt is provided below the negative pressure suction nozzle 4 for conveying the unlabeled paper roll.

[0027] Example 2

[0028] This embodiment is a further improvement made on the basis of Example 1. Compared with Example 1, this embodiment is further provided with a labeling paper roll centering device, which includes a labeling paper roll centering device. The labeling paper roll centering device includes a labeling clamping and centering rod 13 and a labeling centering drive device 14. There are two labeling clamping and centering rods 13. The labeling clamping and centering rods 13 are installed on the labeling frame 1 and slide synchronously toward or away from each other on the labeling frame 1. The two labeling clamping and centering rods 13 slide toward each other to push the paper tube toward the middle. The labeling centering drive device 14 is used to drive the labeling clamping and centering rods 13 to slide on the labeling frame 1.

[0029] This embodiment is preferably provided with a centering column 15, a centering drive slider 17 and a centering drive guide rail 18. The labeling clamping centering rod 13 is provided with two labeling protrusions 25 on one side close to the other labeling clamping centering rod 13. Two centering columns 15 are installed on each of the labeling clamping centering rods 13. The top of the centering column 15 is connected to the labeling protrusion 25 of the labeling clamping centering rod 13 (such as a threaded connection, etc.). In this embodiment, one or more positioning sleeves 16 are rotatably provided at the bottom end of the centering column 15. The positioning sleeves 16 in this embodiment can be sleeved on the positioning column 15. The preferred number of positioning sleeves 16 in this embodiment is two. The centering drive slider 17 described in this embodiment is detachably mounted on one end of the labeling clamping centering rod 13 by means of bolts. The labeling centering drive device 14 is connected to the centering drive slider 17 to drive the centering drive slider 17 to slide horizontally. The centering drive guide rail 18 is detachably mounted on the labeling beam 28 of the labeling machine frame 1 by means of bolts. The centering drive slider 17 is mounted on the centering drive guide rail 18 and slides on the centering drive guide rail 18.

[0030] This embodiment adopts a labeling centering drive device 14 to simultaneously drive the two labeling clamping and centering rods 13 to slide toward or away from each other synchronously. The specific implementation structure is: this embodiment is provided with a swing arm 19, and the number of the swing arms 19 is two. One end of the two swing arms 19 is respectively rotatably connected to the top of the two centering drive sliders 17 by a rotating shaft 26, and the other end of the two swing arms 19 is rotatably connected by a labeling rotating shaft 20, and the ends of the two swing arms 19 that are rotatably connected are stacked up and down; the labeling centering drive device 14 described in this embodiment preferably adopts a labeling centering cylinder, the cylinder body of the labeling centering cylinder is installed on the labeling machine frame 1, the free end of the piston rod of the labeling centering cylinder is connected to the labeling rotating shaft 20, and the piston rod of the labeling centering cylinder telescopically pulls the two swing arms 19 to rotate to drive the two centering drive sliders 17 to slide on the centering drive guide rail 18. In this embodiment, a labeling cylinder mounting beam 32 is detachably mounted on one side of the labeling frame for mounting the labeling centering drive device 14 by bolts. The labeling cylinder mounting beam 32 is horizontally arranged and has the same telescopic direction as the piston rod of the labeling centering cylinder. To enhance stability, this embodiment uses a labeling connecting beam 33 to connect the middle part of the labeling cylinder mounting beam 32 and the labeling frame. Both ends of the labeling connecting beam 33 are connected by bolts. The cylinder body of the labeling centering cylinder is mounted on the end of the labeling cylinder mounting beam 32 away from the labeling frame.

[0031] In order to prevent the cylinder body of the labeling centering cylinder from rotating relative to the labeling cylinder mounting beam 32 during the extension and retraction of the piston rod of the labeling centering cylinder, this embodiment is provided with a centering guide rail 21, a centering slider 22 and a labeling connecting plate 23. The centering guide rail 21 is installed on the upper surface of the labeling cylinder mounting beam 32 of the labeling frame 1, and its length direction is the same as the length direction of the labeling cylinder mounting beam 32. The centering slider 22 is set on the centering guide rail 21 and can slide horizontally on the centering guide rail 21 along the length direction of the centering guide rail 21. One end of the labeling connecting plate 23 is detachably mounted on the centering slider 22 by bolts, and the other end is connected to the labeling rotating shaft 20. The end of the labeling connecting plate 23 connected to the labeling rotating shaft 20 is located between the two swing arms 19, and the piston rod of the labeling centering cylinder is connected to the top of the rotating shaft 20.

[0032] In this embodiment, the piston rod of the labeling centering cylinder retracts, pulling one end of the two swing arms 19, which are pivotally connected, toward the cylinder body of the labeling centering cylinder. The ends of the two swing arms 19, pivotally connected to the centering slider 22, pull the two centering sliders 22 and the labeling clamping and centering rods 13 connected to the centering sliders 22 toward each other along the length of the centering guide rail 21, pushing the paper tube located between the two labeling clamping and centering rods 13 toward the bottom of the negative pressure suction nozzle 4. The four centering posts 15 of the present invention protrude from the labeling clamping and centering rods 13, and the positioning sleeves 16 at the bottom of the centering posts 15 push the paper tube, preventing damage to the paper on the paper tube. The center lines of the four positioning posts 15 project onto the same circle on a horizontal plane, and the center of this circle is located at the horizontal projection point of the negative pressure suction nozzle 4 when it is in the downward position. As a result, the negative pressure suction nozzle 4 moves downward along the center line of the paper tube during downward movement, preventing the negative pressure suction nozzle 4 from poking the end surface of the paper tube during downward movement.

[0033] Any portion of the above description not specifically described herein is prior art or can be implemented using prior art. Furthermore, the specific embodiments described herein are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. In other words, any equivalent variations and modifications made within the scope of the present invention should be considered within the technical scope of the present invention.

Claims

1. Inner labeling mechanism, characterized by: include Labeling rack (1); A printer (2), the printer (2) is mounted on the labeling machine frame (1) and is used for printing labels; A labeling rotary drive device (3), the labeling rotary drive device (3) moves up and down relative to the labeling machine frame (1); A negative pressure suction nozzle (4), the negative pressure suction nozzle (4) is mounted on the labeling rotary drive device (3) and is driven by the labeling rotary drive device (3) to flip over, and is used to absorb the label from the printer (2) in a horizontal state and rotate to a vertical state; a labeling lifting drive device (5), the labeling lifting drive device (5) being mounted on the labeling machine frame (1) and being used to drive the labeling rotary drive device (3) to move up and down, and to extend the negative pressure suction nozzle (4) into the paper tube located below the labeling rotary drive device (3); A label attaching drive device (6) drives the label attaching rotation drive device (3) to move horizontally, and is used to attach the label on the negative pressure suction nozzle (4) to the paper tube; Labeling paper roll centering device, labeling paper roll centering device includes The labeling clamping and centering rod (13) is two in number. The labeling clamping and centering rod (13) is mounted on the labeling machine frame (1) and slides synchronously toward or away from each other on the labeling machine frame (1). The two labeling clamping and centering rods (13) slide toward each other to push the paper tube toward the middle. A labeling centering drive device (14), the labeling centering drive device (14) is used to drive the labeling clamping centering rod (13) to slide on the labeling machine frame (1); Centering column (15), two centering columns (15) are installed on each labeling clamping centering rod (13), the top of the centering column (15) is connected to the labeling clamping centering rod (13), the bottom end of the centering column (15) is rotatably provided with one or more positioning sleeves (16), two labeling protrusions (25) are provided on one side of the labeling clamping centering rod (13) close to the other labeling clamping centering rod (13), and the top of the centering column (15) is connected to the labeling protrusion (25) on the labeling clamping centering rod (13); A centering drive slider (17), the centering drive slider (17) is installed on one end of the labeling clamping centering rod (13), and the labeling centering drive device (14) is connected to the centering drive slider (17) to drive the centering drive slider (17) to slide horizontally; A centering drive guide rail (18), the centering drive guide rail (18) is mounted on the labeling machine frame (1), and a centering drive slider (17) is mounted on the centering drive guide rail (18) and slides on the centering drive guide rail (18); Swing arms (19), the number of the swing arms (19) is two, one end of the two swing arms (19) is respectively connected to the two centering drive sliders (17), and the other ends of the two swing arms (19) are connected to the labeling rotating shaft (20); A centering guide rail (21), the centering guide rail (21) is mounted on the labeling machine frame (1), and its length direction is the same as the length direction of the piston rod of the labeling centering cylinder; A centering slider (22), the centering slider (22) is arranged on the centering guide rail (21) and can slide horizontally on the centering guide rail (21); a labeling connecting plate (23), one end of which is mounted on the centering slider (22) and the other end of which is connected to the labeling rotating shaft (20); The labeling centering drive device (14) is a labeling centering cylinder. The cylinder body of the labeling centering cylinder is installed on the labeling machine frame (1). The free end of the piston rod of the labeling centering cylinder is connected to the labeling rotating shaft (20). The piston rod of the labeling centering cylinder is extended and retracted to pull the two swing arms (19) to rotate and drive the two centering drive slide blocks (17) to slide on the centering drive guide rail (18).

2. The inner labeling mechanism according to claim 1, characterized in that: The labeling lifting drive device (5) is a labeling lifting drive cylinder, the cylinder body of which is mounted on the labeling machine frame (1), and the piston rod of which is arranged downward and vertically retractable; The labeling rotary drive device (3) is a labeling rotary cylinder, the cylinder body of the labeling rotary cylinder is connected to the piston rod of the labeling lifting drive cylinder, and moves vertically with the extension and contraction of the piston rod of the labeling lifting drive cylinder. The piston rod of the labeling rotary cylinder is arranged horizontally, and the negative pressure suction nozzle (4) is installed on the piston rod of the labeling rotary cylinder and turns over with the rotation of the piston rod of the labeling rotary cylinder. The label laminating drive device (6) is a label laminating drive cylinder, which is installed on the label laminating machine frame (1) and is used to drive the label laminating lifting drive cylinder to slide horizontally on the label laminating machine frame (1).

3. The inner labeling mechanism according to claim 2, characterized in that: Also includes A labeling rotary cylinder mounting plate (7), wherein the cylinder body of the labeling rotary cylinder is mounted on the lower surface of the labeling rotary cylinder mounting plate (7), and the piston rod of the labeling lifting drive cylinder is connected to the upper surface of the labeling rotary cylinder mounting plate (7); The labeling guide rod (8) is provided in one or more pieces, and its bottom end is connected to the upper surface of the labeling rotary cylinder mounting plate (7). The labeling guide rod (8) passes through the labeling frame (1) upward and moves vertically relative to the labeling frame (1).

4. The inner labeling mechanism according to claim 3, characterized in that: Also includes A labeling lifting cylinder mounting plate (9) is slidably mounted on the labeling machine frame (1), a label laminating drive cylinder drives the labeling lifting cylinder mounting plate (9) to move horizontally, and a cylinder body of the labeling lifting drive cylinder is mounted on the labeling lifting cylinder mounting plate (9); The labeling guide sleeve (10) is equal in number to the labeling guide rods (8), and the bottom ends of the labeling guide sleeves (10) are arranged on the labeling lifting cylinder mounting plate (9). The labeling guide rods (8) pass through the labeling lifting cylinder mounting plate (9) and the labeling guide sleeve (10) upward and vertically rise and fall in the labeling guide sleeve (10) as the labeling rotary cylinder mounting plate (7) moves vertically.

5. The inner labeling mechanism according to claim 4, characterized in that: Also includes A labeling guide rail (11), the labeling guide rail (11) is mounted on the labeling machine frame (1); The labeling slider (12) is mounted on the bottom of the labeling lifting cylinder mounting plate (9), and the labeling slider (12) is matched with the labeling guide rail (11).

6. The inner labeling mechanism according to claim 5, characterized in that: The label laminating drive cylinder is a rodless cylinder, the labeling slider (12) is mounted on one end of the labeling lifting cylinder mounting plate (9), and the other end of the labeling lifting cylinder mounting plate (9) is mounted on the slider of the label laminating drive cylinder.

Images