Extra-large-width label production equipment

Abstract

The invention discloses extra-large-width label production equipment, and relates to the technical field of label production equipment, the extra-large-width label production equipment comprises an equipment body, and the tail end of the equipment body is a winding part used for winding a label; the compensation roller sets are arranged in the equipment body side by side, each compensation roller set comprises a deviation rectifying roller and a floating roller, the deviation rectifying rollers are installed at the bottom of the equipment body, and the floating rollers are installed at the top of the equipment body and located in the direction close to the winding part relative to the deviation rectifying rollers, so that the labels are arranged in a snakelike mode; the deviation rectifying roller can deflect along with the pressure given by the label; a plurality of air holes are formed in the surface of the floating roller, the interior of the floating roller communicates with an air outlet pipe of the air pump, and air blown out of the air holes gives pressure to labels placed on the floating roller. And the cooperation part is arranged between the floating roller and the deviation rectifying roller and used for enabling the pressure of gas flowing out of the gas holes in the floating roller to correspond to the deviation amount of the deviation rectifying roller. The method has the effect of reducing ship mark wrinkles of the label, especially the label with the extra-large width.

Description

Technical Field

[0001] The present application relates to the technical field of label production equipment, and in particular to a device for producing extra-large wide-format labels. Background Art

[0002] Label production involves multiple steps, some of which require lamination or coating based on customer requirements. After lamination, labels often need to be air-dried and cooled. Directly rewinding the labels can cause wrinkles and ship marks due to the film not being fully cooled. Therefore, most label production equipment cools the labels by passing them over cooling rollers, arranging them in a serpentine pattern, before rewinding.

[0003] However, in the production equipment of wide-width labels, especially extra-wide-width labels, since the width of the label is greater than that of traditional labels, the cooling time required for the coating will be longer, so the cooling path will be longer. However, in actual use, it is found that even if the cooling path is long enough, some ship marks and wrinkles will still appear on the edges during the production process. This phenomenon mainly occurs on labels with a width of more than 30mm, and is more obvious on labels with a width of more than 40mm. In the production of wide or extra-wide labels, since the cooling time requirements will increase, the label cooling path will also be extended. Due to the extension of the cooling path, the number of rollers set will also increase. In the process of winding the label, the increase in the number of rollers that the label contacts will increase the stress points and friction points, which will lead to uneven tension, especially on the edge of the label, causing ship marks and wrinkles on the coating part that has not been fully cooled. Therefore, the wider the label, the more likely it is to have ship marks and wrinkles. Summary of the Invention

[0004] In order to improve the defect that extra-large wide-format labels are prone to ship marks and wrinkles before being rolled up, the present application provides an extra-large wide-format label production device.

[0005] The present application provides an extra-large wide-format label production device that adopts the following technical solutions: A device for producing extra-large wide-format labels, comprising The device body has a winding section at the end for winding the labels; The compensation roller group is set in the equipment body and is arranged in multiple groups side by side. The compensation roller group includes a correction roller and a floating roller. The correction roller is installed at the bottom of the equipment body, and the floating roller is installed at the top of the equipment body and is located near the winding part relative to the correction roller, so that the labels are arranged in a serpentine shape. The correction roller can deflect according to the pressure given by the label; There are multiple air holes on the surface of the floating roller. The inside of the floating roller is connected to the air outlet pipe of the air pump. The air blown out of the air holes gives pressure to the label placed on the floating roller. A cooperative member is provided between the floating roller and the correcting roller, and is used to make the pressure of the gas flowing out of the air holes on the floating roller correspond to the offset of the correcting roller; The fixed rollers are installed on the equipment body, on both sides of the compensation roller group, and are installed opposite to the deviation-correcting roller and the floating roller.

[0006] By adopting the above technical solution, after the label passes through the pressure roller to press the film against the label, it is conveyed to the drying station. The label is then stretched and tightened in a serpentine pattern over the fixed roller, floating roller, and corrective roller in the drying station before being wound up in the reeling section. This serpentine distribution of the label in the drying station effectively improves the efficiency of drying the film on the label and effectively stretches the label. During this process, if the label experiences uneven lateral tension during reeling, it will cause the corrective roller to deflect, and this deflection is transferred to the floating roller via a cooperating member. This causes the pressure of the gas blown out of the floating roller's air holes to change accordingly with the offset of the corrective roller. Specifically, if end A of the floating roller deflects upward, the pressure of the gas blown out of the air holes at end A of the floating roller decreases, and the pressure from the other end of the floating roller to end A gradually decreases, thereby regulating the pressure on the label. This reduces the pressure on the portion of the label experiencing greater lateral tension, thereby balancing the lateral pressure of the label and reducing the occurrence of ship marks, especially on very wide labels.

[0007] Optionally, the deviation-correcting roller includes a center rod, an outer roller shell, an inner roller shell, and an elastic body; The center rod is fixed on the equipment body. The elastomer is made of elastic material. Multiple elastomers form a group and are divided into multiple groups. They are fixed on the circumferential side wall of the center rod. An inner strip is fixed on the other end. The inner strip is fixed on the inner wall of the inner roller shell. One of the inner strips is located at the center of the top of the inner roller shell. In the natural state, the inner roller shell is collinear with the central axis of the central rod; The outer roller shell is sleeved on the inner roller shell and is rotatably connected to the inner roller shell, and a bearing is installed between the outer roller shell and the inner roller shell; Correction rods are fixed at both ends of the inner strip plate at the middle position of the top of the inner roller shell to transmit the offset information of the inner roller shell.

[0008] By adopting the above technical solution, since the correction roller is located at the bottom, it will be subjected to the upward pulling force of the label. When the lateral pulling force of the label is uneven, the outer roller shell will transfer the pressure to the inner roller shell and deflect the inner roller shell to one side. The inner roller shell squeezes the elastomer to achieve deflection, and the offset of the inner roller shell is reflected by the deflection rod. The setting of the elastomer can effectively limit the rotation of the inner roller shell, thereby enabling the outer roller shell to rotate stably and drive the inner roller shell to deflect stably through pressure.

[0009] Optionally, the floating roller includes an inner cavity shell and an air roller shell, the inner cavity shell is mounted on the device body, the air roller shell is rotatably sleeved on the circumferential outer wall of the inner cavity shell, a bearing is mounted between the air roller shell and the inner cavity shell, and the air hole is located on the air roller shell; The inner cavity shell is provided with an opening at the top, an air distribution frame is fixed in the inner cavity shell, the air distribution frame is provided with an opening at the top, a plurality of air inlet holes are opened on the side wall of the air distribution frame, an air inlet shell is fixed on the outer wall of the air distribution frame, and the air inlet shell is connected to the air outlet pipe of the air pump; A plurality of partition plates are fixedly provided on the side wall of the top opening of the inner cavity shell. The partition plates are arc plates and are fixedly connected to the inner side wall of the air separation frame to divide the air separation frame into multiple spaces. A diverter plate is provided inside the air intake shell, with both ends of the diverter plate extending out of the air intake shell and the inner cavity shell. A folding membrane is fixedly provided at both ends of the air intake shell, and the folding membrane is also fixedly connected to the diverter plate. The diverter plate can block the bottom of the air intake strip hole; The cooperating part is arranged between the deviation-correcting rod and the diverter plate, so that the deviation-correcting rod and the diverter plate are kept in a parallel state.

[0010] By adopting the above technical solution, the cooperative part brings the offset of the deflection rod to the diverter plate, so that the diverter plate rotates and becomes parallel to the offset rod, thereby making the diverter plate separate the air inlet strip hole into two parts, the upper and lower parts. The part of the air inlet strip hole located above the diverter plate can blow the air into the air separation frame and finally blow it out from the air hole, thereby reducing the wind force of the air hole in the high part of the diverter plate, thereby realizing the lateral pressure adjustment of the label.

[0011] Optionally, the cooperating parts include a connecting plate and a bending rod; The bending rod is rotatably connected to the end of the deviation-correcting rod and the two ends of the diverter plate, and the rotation axes are all horizontally arranged; A connecting plate is respectively provided at both ends of the floating roller, the top end of the connecting plate is rotatably connected to the bending rod of the diverter plate, and the bottom end of the connecting plate is rotatably connected to the bending rod of the deviation correcting rod.

[0012] By adopting the above technical solution, after the offset rod is offset, it will drive the connecting plate to move up and down accordingly through the bending rod, and then drive the diversion plate to offset accordingly through the bending rod at the top of the connecting plate. The connecting plate can also rotate relative to the bending rod, effectively improving the stability of the offset transmission.

[0013] Optionally, a torsion spring is provided at the rotating shaft of the bending rod, so that the bending rod on the correction rod is parallel to the correction rod, and the bending rod on the diverter plate is parallel to the diverter plate.

[0014] By adopting the above technical solution, the setting of the torsion spring can ensure that the bending rod maintains a stable horizontal state when the offset rod does not deflect, giving the bending rod a force to reset, thereby improving the stability of the connecting plate in transmitting the offset.

[0015] Optionally, the equipment body is vertically slidably connected to a counterweight block, and the equipment body is also provided with multiple pulleys. A connecting rope is connected to the top of the counterweight block. After the connecting rope abuts the pulley, it is fixedly connected to the center of gravity of the connecting plate from above the connecting plate. The pulling force of the connecting rope on the connecting plate is the same as the gravity of the connecting plate.

[0016] By adopting the above technical solution, the counterweight block can offset the self-weight of the connecting plate through the tension of the connecting rope, thereby further reducing the resistance of the connecting plate to the up and down movement and reducing the deflection error of the diverter plate.

[0017] Optionally, a plug plate is fixed in the middle position inside the air intake shell, vertical grooves are opened in the middle position of the outer wall of the air distribution frame and on the plug plate, a center rod is fixed in the middle of the side wall of the diverter plate, and the center rod is slidably connected in the groove.

[0018] By adopting the above technical solution, the arrangement of the strip grooves can cooperate with the center rod, so that the diverter plate is located in the middle position of the air intake shell, thereby improving the stability of the diverter plate position.

[0019] Optionally, an outer ring plate is fixedly provided on the circumferential outer wall of the inner cavity shell at the partition plate to reduce the air circulation between the compartments separated by the partition plate and reduce the pressure error of the air blown out from the air holes in the corresponding areas.

[0020] Optionally, a plurality of sponges are filled between the central rod and the inner roller shell.

[0021] By adopting the above technical solution, the sponge body can provide auxiliary support for the outer roller shell and assist in resetting the inner roller shell during its deflection and resetting process.

[0022] Optionally, the center rod is provided with a plurality of buffer holes, the center rod is hollow, and both ends of the center rod are open.

[0023] By adopting the above technical solution, the hollow setting of the buffer hole and the center rod can improve the efficiency of the sponge body reset, thereby facilitating the reset of the deviation correction roller.

[0024] In summary, this application includes at least one of the following beneficial technical effects: When the label has uneven tension, the correction roller will be squeezed, and then the correction roller will tilt upward to the side with greater tension. The correction rod drives the diverter plate to rotate accordingly through the cooperative parts, and adjusts the air flow of each part in the air distribution frame accordingly, so that the gas pressure flowing out of the air holes corresponding to the high part of the diverter plate is smaller. Even if the air flow pressure on the part of the label with greater tension is reduced, the air flow pressure on the part of the label with less tension is increased. Through the adjustment of multiple groups of compensation rollers, the force of the label is balanced, so as to reduce the generation of ship marks and wrinkles on the label, especially on the extra-large wide labels. The elastic body and sponge in the correction roller can cooperate with the inner roller shell to deflect and reset. The setting of the elastic body can effectively limit the rotation of the inner roller shell, thereby improving the stability of the correction rod position. The sponge can assist the elastic body to improve the effect of resetting the inner roller shell, thereby increasing the service life of the correction roller. The floating roller adjusts the pressure of the gas blown out of the air holes on the air roller shell by positioning the diverter plate in the air distribution shell, and cooperates with the partition plate to realize the partitioning of the air holes, further improving the stability of the adaptive adjustment of the corresponding air hole pressure and achieving the effect of compensating the lateral pressure of the label; The setting of the bending rod can not only rotate relative to the connecting plate, but also drive the connecting plate to slide up and down accordingly through the correcting rod, and cooperate with the torsion spring to improve the stability of the correcting rod driving the connecting plate to slide up and down, thereby realizing the deflection transfer between the correcting rod and the diverter plate, and improving the lateral pressure compensation effect of the label; The setting of the counterweight block can effectively offset the weight of the connecting plate, thereby reducing the resistance of the correction rod to the connecting plate moving up and down, and reducing the error in driving the diverter plate to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of the embodiment of the present application embodiment 1 of the present application; Figure 2 This is a schematic diagram of the structure of Example 1 of the present application after partially hiding the device body; Figure 3 is a partial cross-sectional view showing the compensation roller assembly in Example 1 of the present application; Figure 4 This is a partial cross-sectional exploded view showing the deviation-correcting roller in Example 1 of the present application; Figure 5 is a partial schematic diagram showing the inner strip board of Example 1 of the present application; Figure 6 is a partial cross-sectional view showing the floating roller in Example 1 of the present application; Figure 7 is a partial cross-sectional view showing the cross section of the floating roller in Example 1 of the present application; Figure 8 is a partial cross-sectional exploded view showing the strip groove in Example 1 of the present application; Figure 9 is a partial schematic diagram showing a collaborative component according to Example 1 of the present application; Figure 10 It is a partial schematic diagram of Example 2 of the present application; Figure 11 It is a partial schematic diagram showing the pulley in Example 2 of the present application.

[0026] In the figure, 1. Equipment body; 11. Counterweight; 111. Connecting rope; 12. Pulley; 2. Correction roller; 21. Center rod; 211. Buffer hole; 22. Outer roller shell; 23. Inner roller shell; 231. Inner strip; 232. Correction rod; 233. Sponge; 24. Elastomer; 3. Floating roller; 31. Inner cavity shell; 311. Air distribution frame; 3111. Air inlet strip hole; 3112. Strip groove; 312. Diverter plate; 3121, folding membrane; 3122, center rod; 313, air inlet shell; 3131, plug plate; 314, outer ring plate; 315, partition plate; 316, intercepting plate; 32, air roller shell; 321, air hole; 4, cooperating part; 41, connecting plate; 42, bending rod; 5, fixed roller; 6, pressing part; 61, pressure roller; 62, rubber roller; 7, middle part; 8, winding part; 81, winding roller. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-11 This application is described in further detail.

[0028] The embodiment of the present application discloses a device for producing extra-large wide-format labels.

[0029] Example 1, reference Figure 1 The extra-wide label production equipment includes an equipment body 1, a compensation roller group, a fixed roller 5 and a cooperative part 4. The equipment body 1 is divided into three parts according to the label travel direction: a pressing part 6, an intermediate part 7 and a winding part 8. The pressing part 6 is provided with a pressure roller 61 and a rubber roller 62. The rubber roller 62 presses the label against the pressure roller 61, thereby further compacting the film against the label, and then the label enters the intermediate part 7. The label is dried in the intermediate part 7, and the roller in the intermediate part 7 enables the label to maintain a serpentine trajectory. The winding part 8 is provided with a winding roller 81 for winding the label.

[0030] refer to Figure 2 and Figure 3 There are multiple groups of compensation rollers, which are arranged in the middle part 7 and arranged horizontally. The compensation roller group includes a floating roller 3 and a correction roller 2. The correction roller 2 is installed at the bottom of the middle part 7, and the floating roller 3 is installed at the top of the middle part 7. The floating roller 3 is located close to the winding part 8 relative to the correction roller 2. The label passes around the correction roller 2 from the bottom and then passes around the floating roller 3 from the top, so that the label is distributed in a serpentine shape between the multiple groups of compensation rollers. There are multiple fixed rollers 5, which are rotatably connected to the middle part 7 and are opposite to the correction roller 2 and the floating roller 3. After the label moves out of the pressing part 6, it is first arranged in a serpentine shape on the fixed roller 5 and then enters the compensation roller group area. Finally, it passes through the fixed roller 5 and enters the winding part 8.

[0031] The correcting roller 2 deflects according to the pressure applied by the label. The floating roller 3 is equipped with multiple air holes 321. The interior of the floating roller 3 is connected to the air pump's outlet pipe, allowing air to be blown out of the air holes 321 at a high velocity, applying pressure to the label on the floating roller 3. A cooperating element 4, located between the correcting roller 2 and the floating roller 3 within the same group, transmits the offset of the correcting roller 2 to the floating roller 3, causing the air pressure to decrease on the side of the floating roller 3 where the air holes 321 are higher, thereby compensating for the label's pressure. The dynamic effect is as follows: if a label passes under the correcting roller 2 and the tension on one side of the label is greater, the correcting roller 2 moves upward toward the side with greater tension. This, in turn, is affected by the cooperating element 4, which changes the air pressure flowing out of the air holes 321 within the floating roller 3. This pressure decreases on the side with greater tension and increases on the other side, applying pressure to the label, thereby reducing the lateral force differential on the label. Through multiple compensating roller groups, the uneven lateral tension on the label is continuously reduced, thereby reducing the occurrence of ship marks and wrinkles.

[0032] refer to Figure 4 and Figure 5 The deviation-correcting roller 2 includes a center rod 21, an outer roller shell 22, an inner roller shell 23 and an elastomer 24. The center rod 21 is a hollow tube, which is fixedly installed in the middle part 7 of the equipment body 1, wherein the two ends of the center rod 21 will not be blocked after installation. A plurality of buffer holes 211 are spaced apart on the center rod 21. The elastomer 24 is an elastic material, which can be a rubber material, and in this embodiment, it is a spring sheet. A plurality of elastomers 24 are grouped together, and multiple groups are distributed on the center rod 21. In this embodiment, the elastomers 24 are grouped together in three, and the three elastomers 24 in the same group are fixed on the center rod 21 in a circumferentially equidistant manner with the central axis of the center rod 21 as the center, and one of the elastomers 24 is located in the middle of the top of the center rod 21. Multiple groups of elastomers 24 are distributed equidistantly along the axis of the center rod 21. The center rod 21 is positioned within the inner roller shell 23. Multiple inner strips 231 are fixedly mounted on the circumferential inner wall of the inner roller shell 23. The ends of the oppositely positioned elastomers 24, facing away from the center rod 21, are each fixedly connected to the same inner strip 231. In their natural state, the central axis of the inner roller shell 23 is collinear with the central axis of the center rod 21. The outer roller shell 22 is sleeved onto the inner roller shell 23. Multiple bearings are positioned between the two shells, rotatably connecting them. The space between the center rod 21 and the inner roller shell 23 is filled with multiple sponges 233. Correction rods 232 are fixedly mounted at the same position on both ends of the inner strip 231 at the top of the inner roller shell 23. The correction rods 232 extend from the inner roller shell 23.

[0033] The label abuts the outer roller shell 22, driving it to rotate relative to the inner roller shell 23. Because the elastic body 24 serves as a connection between the center rod 21 and the inner roller shell 23, the inner roller shell 23 does not rotate relative to the outer roller shell 22. If the label is subjected to uneven lateral force, resulting in greater tension on one side, it will squeeze the bottom of the outer roller shell 22, driving the portion of the inner roller shell 23 corresponding to the greater tension upward, causing the inner roller shell 23 to deflect. At this point, the elastic body 24 and sponge 233 in the corresponding position are compressed. The arrangement of the elastic body 24 and sponge 233 allows the inner roller shell 23 to reset. The hollow design of the center rod 21 and the buffer hole 211 effectively improve the efficiency of the sponge 233's deformation and reset. The deflection correction rod 232 deflects as the inner roller shell 23 deflects.

[0034] refer to Figure 6 and Figure 7 The floating roller 3 comprises an inner shell 31 and an air roller shell 32. The inner shell 31 is horizontally positioned and fixed to the middle portion 7 of the device body 1. The air roller shell 32 is rotatably mounted on the circumferential outer wall of the inner shell 31, with multiple bearings installed between the air roller shell 32 and the inner shell 31. Air holes 321 are located on the air roller. These holes 321 are strip-shaped, with their length parallel to the axis of the air roller shell 32. The top of the inner shell 31 is fan-shaped, with an air distributor frame 311 fixed in the middle. The air distributor frame 311 is open at the top, and its sidewalls are horizontally spaced with multiple vertical air inlet strip holes 3111.

[0035] The outer wall of the air distribution frame 311 is fixed with an air inlet shell 313, which covers the air inlet strip hole 3111 and is connected to the air pump's outlet pipe. The side wall at the arc-shaped opening at the top of the inner cavity shell 31 is fixed with multiple partition plates 315. The top of the partition plate 315 is an arc-shaped plate, and the bottom of the partition plate 315 is fixedly connected to the inner wall of the air distribution frame 311, dividing the air distribution frame 311 into multiple identical spaces. A certain space is maintained between the inner cavity shell 31 and the air roller shell 32 to divide the inner cavity shell 31 and the air roller shell 32 into multiple spaces. Interceptor plates 316 are fixed on both sides of the bottom of the circumferential outer wall of the inner cavity shell 31. The interceptor plates 316 are fixedly connected to the outer ring plate 314 to reduce the flow of air into the area between the two interceptor plates 316.

[0036] refer to Figure 7 and Figure 8A diverter plate 312 is provided inside the air inlet shell 313. Both ends of the air inlet shell 313 extend from the inner cavity shell 31, and both ends of the diverter plate 312 extend from both ends of the air inlet shell 313. A folding membrane 3121 is fixed at both ends of the air inlet shell 313. The folding membrane 3121 is also fixedly connected to the diverter plate 312 to partially close the two ends of the air inlet shell 313. A vertically arranged plug plate 3131 is fixed in the middle position of the inner wall of the air inlet shell 313. The diverter plate 312 is located between the plug plate 3131 and the air distribution frame 311 and abuts against the plug plate 3131 and the air distribution frame 311, so that the diverter plate 312 is in a vertical state. The diverter plate 312 shields the bottom of the air inlet strip hole 3111. A vertical groove 3112 is provided in the middle of the outer wall of the plug plate 3131 and the air distribution frame 311, and a center rod 3122 is fixed in the middle of the side wall of the diverter plate 312. The center rod 3122 is located in the corresponding groove 3112 and rotates and slides vertically, so that the diverter plate 312 remains in the middle position of the air intake shell 313.

[0037] A plurality of spaces are formed between the inner cavity shell 31 and the air roller shell 32 for gas to flow out from the air holes 321. The air inlet shell 313 squeezes the high-pressure air generated by the air pump into the air separation frame 311 and ejects it outward into the multiple areas separated by the partition plate 315, thereby causing the air holes 321 to eject high-pressure gas and apply pressure to the label. The pressure of the gas blown out from the air holes 321 in the corresponding area is regulated by blocking the air inlet strip holes 3111 in different areas through the position and rotation angle of the diverter plate 312, so that the gas above the diverter plate 312 can enter the air separation frame 311 and be discharged from the corresponding air holes 321. The rotation of the diverter plate 312 is used to adjust the pressure of the air blown out from the air holes 321 in the corresponding area, thereby achieving pressure regulation for the label. The setting of the folding membrane 3121 can effectively reduce the probability of gas being discharged from both ends of the air inlet shell 313.

[0038] refer to Figure 9 The cooperating member 4 includes a connecting plate 41 and a bent rod 42. The bent rod 42 is rotatably connected to the end of the correcting rod 232 and the two ends of the diverter plate 312. The rotating axis of the bent rod 42 is horizontally arranged and is provided with a torsion spring. When the correcting rod 232 is in a horizontal state, the bent rod 42 on the correcting rod 232 is in a horizontal state under the action of the torsion spring; when the diverter plate 312 is in a horizontal state, the bent rod 42 on the diverter plate 312 is in a horizontal state under the action of the torsion spring. A connecting plate 41 is provided at each end of the floating roller 3. The top end of the connecting plate 41 is rotatably connected to the bent rod 42 of the diverter plate 312, and the bottom end of the connecting plate 41 is rotatably connected to the bent rod 42 of the correcting rod 232. The connecting plate 41 is in a vertical position and keeps the correcting rod 232 and the diverter plate 312 parallel. The connecting plate 41 is made of a lightweight material, in this embodiment, plastic, and has a hollowed-out middle portion to form a frame structure. The upper and lower ends of the connecting plate 41 are both arc surfaces.

[0039] When the deflection correction rod 232 tilts, it drives the corresponding connecting plate 41 upward or downward via the bending rod 42. The connecting plate 41, through its own sliding motion, rotates the diverter plate 312, aligning the diverter plate 312 with the deflection correction rod 232, enabling real-time adjustment of the air intake volume of the air inlet holes 3111. This reduces the air pressure from the air holes 321 on the floating roller 3 on the side with greater lateral tension on the label, while increasing the air pressure from the air holes 321 on the other side of the label. This compensates for the lateral tension of the label. Multiple sets of compensation rollers reduce the tension difference on both sides of the label, thereby reducing the occurrence of ship marks and wrinkles on labels, especially on very wide labels. The provision of the bending rod 42 ensures that the rotation of the deflection correction rod 232 stably drives the connecting plate 41 up and down, maintaining the connecting plate 41 in a vertical position. The provision of a torsion spring improves the stability of the resetting of the connecting plate 41 and reduces errors in resetting the connecting plate 41.

[0040] The implementation principle of Example 1 of the present application is as follows: the label is pressed against the pressure roller 61 by the rubber roller 62 of the pressing part 6 and then sent to the middle part 7, and is distributed in a serpentine manner on the fixed roller 5, the correcting roller 2 and the floating roller 3 to dry the film on the label, and finally is wound onto the winding roller 81 in the winding part 8. When the label is subjected to uneven lateral force due to uneven tension in the middle part 7, the label will apply pressure to the correcting roller 2, causing the correcting roller 2 to deflect upward on the side where the label has greater tension, thereby causing the correcting rod 232 to deflect in the same manner. The correcting rod 232 drives the diverter plate 312 to produce the same deflection through the connecting plate 41. The diverter plate 312 partially blocks the multiple air inlet strip holes 3111, thereby controlling the air flow rate entering each partition plate 315 through the air inlet strip holes 3111, and thereby adjusting the air pressure blown out of the air holes 321 corresponding to the areas separated by each partition plate 315. The position where the transverse tension of the label is greater is subjected to smaller air pressure on the floating roller 3, while the position where the transverse tension of the label is smaller is subjected to larger air pressure on the floating roller 3. The transverse tension on the label is balanced by adjusting multiple compensation roller groups, reducing the probability of ship marks and wrinkles on the label, especially on extra-wide labels.

[0041] Example 2, reference Figure 10 and Figure 11 The embodiment of the present application differs from the first embodiment in that: the connecting plate 41 can be made of any material, the device body 1 is vertically slidably connected to the counterweight 11, the device body 1 is further provided with a plurality of pulleys 12, and a connecting rope 111 is attached to the top of the counterweight 11. After the connecting rope 111 abuts the pulley 12, it is fixedly connected to the center of gravity of the connecting plate 41 from above. The connecting rope 111 is always in a taut state, and the tension applied to the connecting plate 41 by the counterweight 11 through the connecting rope 111 is equal to the weight of the connecting plate 41.

[0042] The implementation principle of Example 2 of the present application differs from that of Example 1 in that the connecting plate 41 is subjected to a constant tension from the connecting rope 111, which counteracts the weight of the connecting plate 41. As the correcting rod 232 drives the connecting plate 41 up and down, the influence of the connecting plate 41's own weight is effectively reduced, thereby reducing the amount of error in the deflection of the diverter plate 312 caused by the connecting plate 41.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A device for producing extra-large wide-format labels, characterized by: include The device body (1) has a winding portion (8) at the end for winding the label; A compensation roller group is arranged in the device body (1) and is a plurality of groups arranged side by side. The compensation roller group includes a correction roller (2) and a floating roller (3). The correction roller (2) is installed at the bottom of the device body (1). The floating roller (3) is installed at the top of the device body (1) and is located in a direction close to the winding part (8) relative to the correction roller (2), so that the labels are arranged in a serpentine shape. The correction roller (2) can be deflected according to the pressure given by the label; A plurality of air holes (321) are provided on the surface of the floating roller (3), and the interior of the floating roller (3) is connected to the air outlet pipe of the air pump. The air blown out of the air holes (321) applies pressure to the label placed on the floating roller (3); A cooperative member (4) is provided between the floating roller (3) and the deviation-correcting roller (2) and is used to make the pressure of the gas flowing out of the air hole (321) on the floating roller (3) correspond to the offset of the deviation-correcting roller (2); The fixed rollers (5) are arranged on the equipment body (1) and are located on both sides of the compensation roller group. The installation position is opposite to the deviation correction roller (2) and the floating roller (3).

2. The extra-large wide format label production equipment according to claim 1, characterized in that: The deviation-correcting roller (2) comprises a central rod (21), an outer roller shell (22), an inner roller shell (23), and an elastic body (24); The center rod (21) is fixed on the device body (1), the elastic body (24) is made of elastic material, a plurality of the elastic bodies (24) form a group, and are divided into multiple groups, which are fixed on the circumferential side wall of the center rod (21), and an inner strip plate (231) is fixed on the other end, and the inner strip plate (231) is fixed on the inner wall of the inner roller shell (23), and one of the inner strip plates (231) is located at the center position of the top of the inner roller shell (23); In a natural state, the inner roller shell (23) is collinear with the central axis of the central rod (21); The outer roller shell (22) is sleeved on the inner roller shell (23) and is rotatably connected to the inner roller shell (23), and a bearing is installed between the outer roller shell (22) and the inner roller shell (23); Deviation correction rods (232) are fixedly provided at both ends of the inner strip plate (231) at the middle position of the top of the inner roller shell (23) for transmitting deviation information of the inner roller shell (23).

3. The extra-large wide format label production equipment according to claim 2, characterized in that: The floating roller (3) includes an inner cavity shell (31) and an air roller shell (32). The inner cavity shell (31) is mounted on the device body (1). The air roller shell (32) is rotatably sleeved on the circumferential outer wall of the inner cavity shell (31). A bearing is installed between the air roller shell (32) and the inner cavity shell (31). The air hole (321) is located on the air roller shell (32). The inner cavity shell (31) is provided with an opening at the top, an air distribution frame (311) is fixedly provided in the inner cavity shell (31), the air distribution frame (311) is provided with an opening at the top, a plurality of air inlet holes (3111) are provided on the side wall of the air distribution frame (311), an air inlet shell (313) is fixedly provided on the outer side wall of the air distribution frame (311), and the air inlet shell (313) is communicated with the air outlet pipe of the air pump; A plurality of partition plates (315) are fixedly provided on the side wall of the top opening of the inner cavity shell (31), wherein the partition plates (315) are arc plates. The partition plates (315) are also fixedly connected to the inner side wall of the gas separation frame (311) to separate the gas separation frame (311) into a plurality of spaces. A diverter plate (312) is provided inside the air intake shell (313), with both ends of the diverter plate (312) extending out of the air intake shell (313) and the inner cavity shell (31). Folding membranes (3121) are fixedly provided at both ends of the air intake shell (313), and the folding membranes (3121) are also fixedly connected to the diverter plate (312). The diverter plate (312) can block the bottom of the air intake strip hole (3111); The cooperative member (4) is arranged between the deviation-correcting rod (232) and the diverter plate (312), so that the deviation-correcting rod (232) and the diverter plate (312) are kept in a parallel state.

4. The extra-large wide format label production equipment according to claim 3, characterized in that: The cooperating member (4) includes a connecting plate (41) and a bending rod (42); The bending rod (42) is rotatably connected to the end of the deviation-correcting rod (232) and the two ends of the diverter plate (312), and the rotation axes are all horizontally arranged; A connecting plate (41) is provided at each end of the floating roller (3). The top end of the connecting plate (41) is rotatably connected to the bending rod (42) of the diverter plate (312), and the bottom end of the connecting plate (41) is rotatably connected to the bending rod (42) of the correction rod (232).

5. The extra-large wide format label production equipment according to claim 4, characterized in that: Torsion springs are provided at the rotating shafts of the bending rods (42), so that the bending rods (42) on the deviation correction rods (232) are parallel to the deviation correction rods (232), and the bending rods (42) on the diverter plate (312) are parallel to the diverter plate (312).

6. The extra-large wide format label production equipment according to any one of claims 4-5, characterized in that: The device body (1) is vertically slidably connected to a counterweight (11). The device body (1) is also provided with a plurality of pulleys (12). A connecting rope (111) is connected to the top of the counterweight (11). After the connecting rope (111) contacts the pulley (12), it is fixedly connected to the center of gravity of the connecting plate (41) from above. The pulling force of the connecting rope (111) on the connecting plate (41) is the same as the gravity of the connecting plate (41).

7. The extra-large wide format label production equipment according to claim 3, characterized in that: A plug-in plate (3131) is fixedly provided at the middle position inside the air inlet shell (313), a vertical groove (3112) is provided at the middle position of the outer wall of the air distribution frame (311) and on the plug-in plate (3131), a center rod (3122) is fixedly provided at the middle part of the side wall of the diverter plate (312), and the center rod (3122) is slidably connected in the groove (3112).

8. The extra-large wide format label production equipment according to claim 3, characterized in that: An outer ring plate (314) is fixedly provided on the circumferential outer wall of the inner cavity shell (31) at the partition plate (315).

9. The extra-large wide format label production equipment according to claim 2, characterized in that: A plurality of sponges (233) are filled between the central rod (21) and the inner roller shell (23).

10. The extra-large wide format label production equipment according to claim 9, characterized in that: The central rod (21) is provided with a plurality of buffer holes (211), the central rod (21) is hollow, and both ends of the central rod (21) are open.

Images