Environment-friendly adhesive label and preparation method thereof

Abstract

The application discloses an environment-friendly self-adhesive label and a preparation method thereof, and comprises a self-adhesive label main body and a self-cleaning punching device. The self-adhesive label is provided with a release paper layer and a adhesive layer which are respectively made of glassine paper and polycarbonate adhesive. In this way, the label is degradable, the overall environmental protection of the label is improved, and pollution to the environment is avoided. Meanwhile, the self-cleaning punching device is provided, that is, the moving plate is driven by the air cylinder. When the self-cleaning punching device is driven, the punching part can realize stable punching of the label. Through the operation of the paper suction assembly, the generated paper scraps are synchronously adsorbed and collected, so that the label punching efficiency is not affected by the paper scraps. Through the driving of the adjusting structure, the punching distance can be flexibly adjusted to meet different label punching requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of self-adhesive labels, in particular to an environment-friendly self-adhesive label and a preparation method thereof. BACKGROUND

[0002] The self-adhesive label has the advantages of no need of brushing glue, no need of paste, no need of water dipping, no pollution, saving of label sticking time, wide application range, convenience and quickness, and the like, and is a material, also called self-adhesive label material, which is paper, film or other special material as a surface material, has a glue agent coated on the back, and is a composite material with silicon-coated protection paper as a bottom paper.

[0003] The self-adhesive label currently used has low degradability of the release paper and the adhesive layer inside, is difficult to handle in the later period, has low environmental protection, is not conducive to environmental protection, and in the production and processing of the label, some auxiliary tools are needed, including a device for punching the label. The label punching equipment used in the existing process has low cleaning effect on the punched paper scraps when punching the label, and the paper scraps are easily scattered everywhere, affecting the equipment environment, and a large amount of paper scraps will have a certain influence on the overall processing process of the self-adhesive label. SUMMARY

[0004] The present application aims to provide an environment-friendly self-adhesive label and a preparation method thereof to solve the problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: an environment-friendly self-adhesive label and a preparation method thereof, comprising a self-adhesive label body, the self-adhesive label body comprising a release paper layer, an adhesive layer and a label layer, the release paper layer having the adhesive layer coated on the upper end, and the adhesive layer having the label layer connected on the upper end.

[0006] Preferably, the release paper layer and the adhesive layer are respectively made of glassine paper and polycarbonate adhesive.

[0007] The present application provides a preparation method of an environment-friendly self-adhesive label, comprising the following steps:

[0008] S1: coating the adhesive layer on the release paper layer, and pressing the label layer on the upper end of the adhesive layer to make a self-adhesive label base paper;

[0009] S2: unwinding and expanding the self-adhesive label base paper and transmitting it to a printing process;

[0010] S3: printing patterns or characters on the self-adhesive label base paper by a printing machine, and coating varnish on the self-adhesive label base paper;

[0011] S4: using a punching device to punch the required holes on the outer side of the adhesive label base paper, and using a cutting machine to cut the continuous adhesive label base paper to the length of the set semi-finished product;

[0012] S5: cutting the label into a predetermined size by a cutting device to complete the processing and preparation of the adhesive label.

[0013] Preferably, the punching device comprises a rack, a conveying belt mounted on the front side of the upper end of the rack, a processing table arranged on the rear side of the upper end of the rack, a controller mounted on the left side of the processing table, a receiving plate arranged on the upper end of the processing table, support rods mounted on the left and right sides of the processing table, a bracket connected to the upper end of the support rods, a pneumatic cylinder mounted on the upper end of the bracket, a moving plate connected to the lower end of the pneumatic cylinder, and a self-cleaning punching device connected to the rear side of the bracket and inside the moving plate.

[0014] Preferably, the self-cleaning punching device comprises a fixed frame connected to the two sides of the bracket, a vertical rod inserted into the rear side of the fixed frame, a frame body connected to the lower end of the vertical rod, a servo motor mounted on the left side of the frame body, an adjusting structure mounted inside the frame body and connected to the output end of the servo motor, a paper suction assembly arranged on both sides of the inside of the frame body, a moving shell arranged on both sides of the inside of the moving plate and connected to the front side of the paper suction assembly, and a punching element mounted on the lower end of the moving shell.

[0015] Preferably, the adjusting structure comprises a screw rod rotatably connected to the inside of the frame body, a connecting plate threadedly connected to both sides of the screw rod and connected to the upper end of the paper suction assembly, and guide rods inserted into both sides of the inside of the connecting plate.

[0016] Preferably, the paper suction assembly comprises a housing arranged on both sides of the inside of the frame body, a duct connected to the front side of the housing, a negative pressure fan mounted on the rear side of the housing, a collection cover arranged inside the housing and connected to the duct and the negative pressure fan, a filter screen mounted inside the collection cover, a bottom plate rotatably connected to the lower end of the housing, a connecting arm connected to one side of the bottom plate, a connecting rod rotatably connected to the outside of the connecting arm, a stop bar inserted into the lower end of the connecting rod, a first compression spring arranged inside the connecting rod and connected to the upper end outside of the stop bar, a fixed block fixed to the outside of the housing and connected to the stop bar, and a sweeping and dumping structure arranged inside the collection cover and connected to the outside of the filter screen.

[0017] Preferably, the sweeping and dumping structure comprises a first disc arranged in the middle of the filter screen and connected to the center of the fan blades inside the negative pressure fan, a brush plate mounted on the upper end of the first disc, connecting rods inserted into both sides of the first disc, a second disc connected to the other side of the connecting rods, a swinging plate connected to the front side of the second disc, an insertion shaft inserted into the upper end of the swinging plate, a push block fixed to the upper end of the insertion shaft, a spring connected to the lower end of the insertion shaft, a collection shell mounted on the lower end of the collection cover, a baffle built into the inside of the collection shell, a long rod connected to the outer end of one side of the baffle, and a return spring mounted on the inside of one side of the collection shell and connected to one side of the baffle.

[0018] Preferably, the punching member comprises a stringing plate built in the mobile shell, a rotating tube butted in the stringing plate, a transmission groove opened on the outer side of the rotating tube, a through hole opened on the upper end of the rotating tube, a sleeve pipe sleeved on the outer side of the rotating tube, a transmission shaft inserted on the upper end of the sleeve pipe, a second compression spring installed on the outer side of the sleeve pipe and the rotating tube, a punching needle butted on the lower end of the sleeve pipe, a limiting block arranged on both sides of the punching needle, and a spring sheet butted on the inner side of the limiting block.

[0019] Preferably, the punching member further comprises a receiving pipe equidistantly arranged on both sides of the upper end of the receiving plate and a positioning shaft fixedly arranged in the receiving pipe, and the receiving pipe is opposite to the punching needle in the up-down direction.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] The present application sets a release paper layer and a adhesive layer made of GraSin paper and polycarbonate adhesive respectively, so that the label is degradable, the overall environmental protection of the label is improved, and pollution to the environment is avoided. A self-cleaning punching device is also provided, i.e. the moving plate is driven by the air cylinder, so that when the self-cleaning punching device is driven, the punching member can stably punch the label. The operation of the paper suction assembly can simultaneously adsorb and collect the generated paper scraps, avoiding the influence of paper scraps on the label punching efficiency. The driving of the adjusting structure can flexibly adjust the punching distance, meeting the punching needs of different labels.

[0022] The setting of the paper suction assembly, i.e. the negative pressure fan installed on the rear side of the shell, can generate a negative pressure suction force when the punching member is punching, so as to adsorb and collect the generated paper scraps into the collection cover, avoiding the influence of the paper scraps on the punching process.

[0023] The setting of the bottom plate, the connecting arm, the butt rod, the resisting strip and the first compression spring, i.e. when the collected paper scraps in the shell need to be processed, the resisting strip can be pulled and rotated at the same time, so as to release the locking of the connecting arm, so that the bottom plate can be automatically opened, the collected paper scraps in the shell can be poured out, and when the bottom plate is re-closed, the resisting strip can stably resist the bottom of the fixed block through the elastic force of the first compression spring arranged in the butt rod, so that the connecting arm and the bottom plate are in a stable closed receiving state.

[0024] The filter screen and the sweeping and pouring structure are arranged, that is, the filter screen can block the paper scraps, avoids the paper scraps from entering the inside of the negative pressure fan, and when the negative pressure fan operates, the first connecting disc and the brush plate are driven to move, the brush plate sweeps the paper scraps attached to the outside of the filter screen, and the paper scraps fall into the inside of the collecting shell, so that the influence of the attached paper scraps on the negative pressure suction of the negative pressure fan is avoided, meanwhile, when the first connecting disc rotates, the connecting rods arranged on the two sides of the inside can drive the first connecting disc and the swing plate, in this way, the swing plate pushes the long rod arranged on the outside of the blocking plate through the pushing effect of the push block, thereby, the blocking plate is opened, the paper scraps previously received in the inside of the collecting shell fall onto the upper end of the bottom plate, and in addition, with the help of the spring and the return spring, when the push block and the long rod are far away, the push block and the blocking plate are automatically reset, so that the collecting shell can receive the paper scraps again, and the sweeping and intermittent discharging of the paper scraps are matched.

[0025] The punching member is arranged, that is, when the moving plate moves, the punching needle, the receiving pipe and the positioning shaft are matched to realize efficient positioning and punching of the label, meanwhile, when the punching needle punches, the sleeve on the upper end is lifted, so that the transmission shaft arranged on the front side of the upper end of the sleeve is matched with the transmission groove arranged on the outside of the rotating pipe, the rotating pipe rotates by 180 degrees as a whole, the through hole arranged on the upper end is connected with the hollow pipe arranged in the inside of the connecting plate, in this way, the paper scraps generated by the punching can be matched with the negative pressure suction to realize efficient suction and collection, so that the influence of the paper scraps on the punching process or the equipment is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic view of the present application;

[0027] Figure 2 It is a structural schematic view of the punching equipment of the present application;

[0028] Figure 3 It is a structural schematic view of the self-cleaning punching device of the present application;

[0029] Figure 4 It is a structural schematic view of the adjusting structure and the paper suction assembly of the present application;

[0030] Figure 5 It is a structural schematic view of the paper suction assembly of the present application;

[0031] Figure 6 It is a structural schematic view of the sweeping and pouring structure of the present application;

[0032] Figure 7 For the application Figure 5 Amplification structure schematic diagram at A in the application;

[0033] Figure 8 For the application, the structure schematic diagram of the punching part is shown in the figure;

[0034] Figure 9 For the application, the structure schematic diagram of the punching part is shown in the figure;

[0035] Figure 10 For the application, the structure schematic diagram of the punching part is shown in the figure. In the figure: adhesive label body-100, release paper layer-200, adhesive layer-300, label layer-400, rack-1, conveying belt-2, processing table-3, controller-4, receiving plate-5, support rod-6, support-7, air cylinder-8, moving plate-9, self-cleaning punching device-10, fixing frame-101, vertical rod-102, frame-103, servo motor-104, adjusting structure-105, screw rod-1051, connecting plate-1052, guide rod-1053, paper suction assembly-106, shell-1061, conduit-1062, negative pressure fan-1063, collection cover-1064, filter screen-1065, bottom plate-1066, connecting arm-1067, butt rod-1068, resistance strip-1069, first compression spring-10610, fixed block-10611, sweeping and pouring structure-109, first receiving disc-1091, brush plate-1092, connecting rod-1093, second receiving disc-1094, swing plate-1095, plug-in shaft-1096, push block-1097, spring-1098, collection shell-1099, baffle-10910, long rod-10911, reset spring-10912, moving shell-107, punching part-108, stringing plate-1081, rotating tube-1082, transmission groove-1083, through hole-1084, sleeve-1085, transmission shaft-1086, second compression spring-1087, punching needle-1088, limit block-1089, spring sheet-10810, receiving tube-10811, positioning shaft-10812. DETAILED DESCRIPTION

[0036] In order to further explain the technical scheme of the application, the following specific embodiments are described in detail.

[0037] Please refer to Figure 1 The application provides an environment-friendly adhesive label and a preparation method thereof, which comprises an adhesive label body 100. The adhesive label body 100 comprises a release paper layer 200, an adhesive layer 300 and a label layer 400. The upper end of the release paper layer 200 is coated with the adhesive layer 300, and the upper end of the adhesive layer 300 is connected with the label layer 400.

[0038] The release paper layer 200 and the adhesive layer 300 are respectively made of glassine paper and polycarbonate adhesive, wherein the glassine paper has good degradability and belongs to an environmentally friendly material, and the adhesive layer 300 adopts polycarbonate adhesive as the material, the polycarbonate adhesive is made by catalytic polymerization using glycidyl butyrate, propylene oxide and carbon dioxide as raw materials, and has good degradability and adhesion, so that the entire adhesive label body 100 has good degradability and environmental protection through the setting of the materials of the release paper layer 200 and the adhesive layer 300, which is beneficial to use.

[0039] A preparation method of an environmentally friendly adhesive label, comprising the following steps:

[0040] S1: coating the adhesive layer 300 on the release paper layer 200, and pressing the label layer 400 on the upper end of the adhesive layer 300 to form an adhesive label base paper;

[0041] S2: unwinding and expanding the adhesive label base paper and transmitting it to a printing process;

[0042] S3: printing patterns or characters on the adhesive label base paper by a printing machine, and coating varnish on the adhesive label base paper;

[0043] S4: punching the required holes on the outer side of the adhesive label base paper using a punching device, and cutting the continuous adhesive label base paper to the length of the set semi-finished product using a cutting machine;

[0044] S5: cutting the label into a predetermined size by a cutting device to complete the processing and preparation of the adhesive label.

[0045] Please refer to Figures 2-10 The punching device in the embodiment comprises a rack 1 for equipment installation support, a conveying belt 2 installed on the front side of the upper end of the rack 1 for label base paper transmission processing, a processing table 3 tightly connected to the rear side of the upper end of the rack 1 for label receiving and punching cooperation, a controller 4 installed on the left side of the processing table 3, a receiving plate 5 arranged on the upper end of the processing table 3, support rods 6 symmetrically and vertically installed on the left and right sides of the processing table 3 for supporting cooperation, a bracket 7 tightly connected to the upper end of the two support rods 6, a pneumatic cylinder 8 installed on the upper end of the bracket 7, a moving plate 9 connected to the lower end of the pneumatic cylinder 8, a self-cleaning punching device 10 connected to the rear side of the bracket 7 and connected to the inside of the moving plate 9, in this way, the self-cleaning punching device 10 can be used to deal with the adsorption and cleaning of the paper scraps generated during punching.

[0046] Specifically, when the punching activity of the self-adhesive label base paper is carried out, the self-adhesive label body 100 needs to be placed on the running conveying belt 2, so that the conveying belt 2 realizes the backward transmission activity of the self-adhesive label body 100, and the self-adhesive label body 100 is transmitted to the receiving plate 5 arranged at the upper end of the processing table 3, so as to realize the flat receiving and punching cooperation of the receiving plate 5. At this time, the cylinder 8 arranged at the upper end of the support 7 can be driven, so that the moving plate 9 connected to the bottom is pushed down. In this way, the self-cleaning punching device 10 connected to the rear side of the support 7 and connected to the inside of the moving plate 9 can realize efficient positioning and punching of the left and right sides of the self-adhesive label body 100, and can realize the adsorption and collection of the punched paper scraps, so as to avoid the paper scraps from falling everywhere and affecting the punching equipment and the working environment.

[0047] Among them, the self-cleaning punching device 10 includes the fixed frame 101 which is symmetrically and tightly connected to the left and right sides of the upper end of the support 7, the vertical rod 102 which is vertically inserted into the rear side of the fixed frame 101, the frame 103 which is connected to the lower end of the vertical rod 102, the servo motor 104 which is arranged at the left side of the upper end of the frame 103, the adjusting structure 105 which is arranged at the upper end of the inside of the frame 103 and connected to the output end of the servo motor 104, the paper suction assembly 106 which is arranged at the left and right sides of the inside of the frame 103, and the moving shell 107 which is symmetrically arranged at the left and right sides of the inside of the moving plate 9 and connected to the front side of the left and right paper suction assemblies 106. The front end of the moving shell 107 is integrally and rotatably provided with a roller. In this way, the moving shell 107 can be slidably connected to the front side of the inside of the moving plate 9 through the roller arranged at the front side. The punching element 108 which is arranged at the lower end of the moving shell 107 can realize efficient punching and intermittent paper scrap adsorption activity of the label.

[0048] Specifically, when the cylinder 8 realizes the downward punching transmission of the moving plate 9, the frame 103 which is combined with the support 7 through the cooperation of the left and right fixed frames 101 and the vertical rod 102 will realize stable downward movement, so as to ensure the stability of the efficient punching and paper scrap adsorption activity.

[0049] Among them, the adjusting structure 105 includes the screw 1051 which is transversely and rotatably connected to the middle part of the upper end of the inside of the frame 103, the connecting plate 1052 which is threadedly connected to the left and right sides of the screw 1051 and connected to the upper end of the left and right paper suction assemblies 106, and the guide rod 1053 which is vertically inserted into the inside of the connecting plate 1052 for supporting and transverse guiding cooperation.

[0050] Specifically, when adjusting the different punching position, the servo motor 104 arranged on the left side of the frame body 103 can be driven to rotate the screw rod 1051 connected to the output end of the servo motor 104, and the connecting plate 1052 connected to the opposite external threads on the left and right sides of the screw rod 1051 is supported and guided by the front and rear side inserted guide rods 1053, so that the paper suction assembly 106, the moving shell 107 and the punching element 108 can move left and right relative to each other or in opposite directions, thereby flexibly adjusting the punching distance to meet the different punching requirements of labels.

[0051] The paper suction assembly 106 includes the shell 1061 arranged inside the frame body 103 on the left and right sides, the shell 1061 is in sliding abutment with the inner bottom of the frame body 103 at the lower end, the conduit 1062 is arranged on the front side of the shell 1061, the front end of the conduit 1062 is connected to the punching element 108, the negative pressure fan 1063 is arranged on the rear side of the shell 1061 for use in negative pressure adsorption, the collection cover 1064 is arranged inside the shell 1061 and connected to the conduit 1062 and the negative pressure fan 1063, thereby forming a negative pressure adsorption space to realize efficient adsorption and cleaning of the shredded paper, the filter screen 1065 is arranged inside the collection cover 1064 on the rear side to realize filtering and blocking, the bottom plate 1066 is rotatably connected to the lower end of the shell 1061 for opening and closing and tilting, the connecting arm 1067 is obliquely connected to one side of the bottom plate 1066 to realize the opening and closing transmission of the bottom plate 1066, the connecting rod 1068 is rotatably connected to the outer side of the connecting arm 1067, the abutting bar 1069 is inserted into the lower end of the connecting rod 1068, the bottom of the abutting bar 1069 is in a long strip shape, the first compression spring 10610 is arranged inside the connecting rod 1068 and connected to the outer side of the upper end of the abutting bar 1069, so as to cooperate with the elastic force of the first compression spring 10610 to strengthen the abutting and locking effect of the bottom of the abutting bar 1069, the fixed block 10611 is fixedly connected to the outer side of the shell 1061 and connected to the bottom of the abutting bar 1069, the sweeping and pouring structure 109 is arranged inside the collection cover 1064 and connected to the outer side of the filter screen 1065, and the negative pressure fan 1063 is driven to realize the transmission of the sweeping and pouring structure 109, so as to realize the sweeping and falling of the shredded paper attached to the outside of the filter screen 1065 and the intermittent dropping activity.

[0052] Specifically, when the negative pressure fan 1063 is operated at the rear side of the shell 1061, the generated paper scraps can be sucked into the inside of the punching member 108 when the punching member 108 completes the punching activity of the label, and the paper scraps can be made to enter the inside of the collecting cover 1064 through the pipe 1062 which is relatively connected to the outside of the punching member 108, so that the synchronous adsorption cleaning of the label scraps generated by the punching is realized, the neatness of the label or the outside of the equipment is ensured, and the overall punching quality is improved. The filter screen 1065 is arranged at the rear side of the inside of the collecting cover 1064, which can prevent the paper scraps from entering the inside of the negative pressure fan 1063 and causing damage to the negative pressure fan 1063. When the negative pressure fan 1063 is driven, the sweeping and discharging structure 109 arranged in the inside of the collecting cover 1064 is synchronously operated, so that the sweeping and intermittent receiving and discharging cooperation of the paper scraps are realized, and the phenomenon of reduced negative pressure adsorption force caused by blockage of the negative pressure fan 1063 is avoided.

[0053] The sweeping and discharging structure 109 includes the first connecting disc 1091 which is mounted to the middle part of the front side of the filter screen 1065 and is relatively connected to the center of the fan blade inside the negative pressure fan 1063, so that the rotation of the fan blade inside the negative pressure fan 1063 can synchronously realize the rotation driving of the first connecting disc 1091. The brush plate 1092 is vertically connected to the upper end of the first connecting disc 1091 and abuts against the outside of the filter screen 1065. The connecting rods 1093 are symmetrically inserted into the upper and lower sides of the first connecting disc 1091 and are used for connection. The second connecting disc 1094 is connected to the front ends of the connecting rods 1093 and is arranged at the middle part of the front side of the collecting cover 1064. The swinging plate 1095 is connected to the front side of the second connecting disc 1094. The second connecting disc 1094 and the swinging plate 1095 are connected by a connecting pipe. The connecting pipe is rotatably connected to the middle part of the front side of the collecting cover 1064. The insertion shaft 1096 is vertically inserted into the upper end of the swinging plate 1095. The push block 1097 is fixedly connected to the upper end of the insertion shaft 1096 and is provided in a smooth inclined surface shape on the outer surface. The spring 1098 is connected to the lower end of the insertion shaft 1096 and can provide elastic external support. The collecting shell 1099 is integrally arranged at the middle part of the lower end of the collecting cover 1064 and is used for pre-receiving and discharging of the paper scraps. The baffle 10910 is movably arranged in the inside of the collecting shell 1099. The long rod 10911 is connected to the front end of the right side of the baffle 10910 and extends to the outside of the collecting shell 1099. The front side of the long rod 10911 is opposite to the upper and lower sides of the swinging plate 1095. The reset spring 10912 is arranged in the inside of the left side of the collecting shell 1099 and is connected to the right side of the baffle 10910.

[0054] Specifically, when the paper scraps are attached to the outside of the filter screen 1065, it is easier to cause the negative pressure suction force of the negative pressure fan 1063 to decrease, resulting in a decrease in the paper scrap suction and cleaning effect. Therefore, a sweeping and dumping structure 109 is arranged inside the collecting cover 1064, so that when the negative pressure fan 1063 is running, the rotation of the first connecting disc 1091 at the center of the fan blade can be realized, so that the brush plate 1092 arranged on the outer side of the first connecting disc 1091 at the upper end can realize circumferential sweeping movement to sweep the paper scraps attached to the outside of the filter screen 1065, so that the paper scraps fall into the collecting shell 1099. When the first connecting disc 1091 rotates, the upper and lower connecting rods 1093 connected to the first connecting disc 1091 can realize synchronous rotary transmission of the second connecting disc 1094 and the swing plate 1095 at the front ends of the two connecting rods 1093. Thus, the swing plate 1095 rotates to the long rod 10911 arranged on the front side of the baffle 10910, so as to contact and push the long rod 10911 horizontally. Thus, the baffle 10910 arranged inside the collecting shell 1099 can realize horizontal movement to open, so that part of the paper scraps collected in the collecting shell 1099 fall onto the upper end of the bottom plate 1066. When the baffle 10910 is pushed, the left side of the baffle 10910 can be pressed by the reset spring 10912. When the long rod 10911 is pushed to the edge and cannot be pushed, the inclined surface on the outer side of the push block 1097 can be in contact with the long rod 10911, so that the push block 1097 is pressed to push the insertion shaft 1096. Thus, the insertion shaft 1096 moves into the swing plate 1095 to press the spring 1098 arranged in the swing plate 1095. In this way, the push block 1097 can smoothly pass through the long rod 10911 to release the pushing effect of the long rod 10911. Furthermore, the reset spring 10912 and the spring 1098 can automatically rebound to reset the baffle 10910 and the push block 1097, respectively, so as to close the collecting shell 1099 and prepare for the paper scrap collection and dumping again. Thus, the brush plate 1092 and the swing plate 1095 can realize synchronous rotation to sweep the paper scraps attached to the outside of the filter screen 1065, ensure the negative pressure suction force, and realize automatic flexible opening and closing of the baffle 10910 to assist in realizing intermittent dumping of the paper scraps collected in the collecting shell 1099, thereby reducing the decrease in the negative pressure suction force caused by the paper scraps.

[0055] When the shell 1061 inside the lower end of the collected paper scraps need to be poured out, the rotating activity can be performed while pulling the stop bar 1069, so that the long end of the bottom of the stop bar 1069 will be unlocked from the bottom of the fixed block 10611, and then the unlocking connecting arm 1067 will be automatically opened by the weight of the bottom plate 1066 itself, to realize the pouring of the collected paper scraps, and to meet the convenient cleaning activity of the collected paper scraps. When the paper scraps need to be collected, the connecting arm 1067 can be pulled by pulling the stop bar 1069, so that the stop bar 1069 cooperates with the upper end of the butt joint rod 1068 to realize the pulling of the connecting arm 1067. In this way, the connecting arm 1067 will be pulled to close the lower end of the shell 1061 in the open state, and at the same time, the stop bar 1069 will be moved to the bottom of the fixed block 10611, and under the support of the first compression spring 10610 inside the butt joint rod 1068, the stop bar 1069 will be unlocked, and the long end of the bottom of the stop bar 1069 will cooperate with the first compression spring 10610 to firmly lock the bottom of the fixed block 10611, so that the connecting arm 1067 cannot be swung, and thus the stability of the closed collecting state of the bottom plate 1066 is ensured.

[0056] Among them, the punching part 108 includes a serial board 1081 built into the mobile shell 107, and a hollow pipe is provided in the serial board 1081 for the adsorption and transmission of paper scraps, a rotating pipe 1082 is equidistantly rotated and connected to the inside of the side edge of the serial board 1081, and seven rotating pipes 1082 are provided, a transmission groove 1083 is provided on the outside of the rotating pipe 1082, and the transmission groove 1083 is provided in a circular groove shape, and a limiting step is integrally provided in the transmission groove 1083 to avoid reverse rotation, a through hole 1084 is provided on the upper end of the front side of the rotating pipe 1082 for the adsorption and transmission of paper scraps, a sleeve pipe 1085 is movably connected to the outside of the lower end of the rotating pipe 1082, a transmission shaft 1086 is movably connected to the upper end of the sleeve pipe 1085, the transmission shaft 1086 is movably connected to the transmission groove 1083 provided on the outside of the rotating pipe 1082, a second compression spring 1087 is installed on the outside of the sleeve pipe 1085 and the rotating pipe 1082, a punching needle 1088 is connected to the lower end of the sleeve pipe 1085, and the inside of the punching needle 1088 is hollow, and the inside of the punching needle 1088 is communicated with the inside of the sleeve pipe 1085, limiting blocks 1089 are symmetrically built into the inside of the punching needle 1088, and the outer ends of the two limiting blocks 1089 are provided in opposite inclined surface shapes, and spring sheets 10810 are connected to the inside of the limiting blocks 1089 for elastic external support.

[0057] The punching member 108 further comprises two symmetrical equidistant receiving tubes 10811 arranged on the left and right sides of the upper end of the receiving plate 5, and the two receiving tubes 10811 are arranged in a row, and the position of the receiving tube 10811 is opposite to the punching needle 1088, a positioning shaft 10812 is fixedly connected inside the receiving tube 10811, and the overall diameter of the positioning shaft 10812 is consistent with the diameter of the hollow part inside the punching needle 1088, which is used to assist the label punching activity.

[0058] Specifically, when the mobile plate 9 moves downward to drive the mobile shell 107 and the punching member 108 as a whole, the punching needle 1088 arranged inside the punching member 108 will be in contact with the outer surface of the adhesive label body 100 to perform extrusion punching. During this process, the punching needle 1088 will penetrate and connect with the receiving tube 10811 opposite to the bottom. The receiving tube 10811 is provided with a positioning shaft 10812 inside, which can make the paper scraps generated by the punching of the punching needle 1088 enter the hollow part. At the same time, when the punching needle 1088 performs extrusion punching, it will push up the upper end of the sleeve 1085, so that the transmission shaft 1086 inserted into the upper end of the sleeve 1085 and the rotating tube 1082 complete the transmission of the transmission groove 1083, so that the rotating tube 1082 as a whole realizes 180° rotation. In this way, the through hole 1084 arranged on the upper end of the rotating tube 1082 will be rotated to the rear side to be connected with the hollow pipeline inside the stringing plate 1081. In this way, the conduit 1062 opposite to the stringing plate 1081 will be adsorbed by the negative pressure suction of the negative pressure fan 1063, so that the paper scraps are adsorbed into the inside of the collecting cover 1064. Therefore, the punching of the adhesive label body 100 and the adsorption and cleaning of the paper scraps can be conveniently realized at the same time.

[0059] When the sleeve 1085 moves upward, the second compression spring 1087 arranged between the sleeve 1085 and the rotating tube 1082 will be compressed. In this way, when the punching needle 1088 moves upward after completing the punching activity, the sleeve 1085 will be automatically pushed down to reset. When the punching needle 1088 moves downward again to punch, the sleeve 1085 will again be rotated to the front side through the transmission of the transmission shaft 1086 and the transmission groove 1083, so that the through hole 1084 of the upper end of the rotating tube 1082 is rotated to the front side, and the paper scraps negative pressure adsorption transmission channel is intermittently closed to avoid the phenomenon of paper scraps entering too much and causing blockage, which reduces the efficiency of paper scraps negative pressure adsorption and cleaning. When the through hole 1084 is in a closed state, the paper scraps generated by punching will be stably located inside the punching needle 1088 through the limiting and blocking of the limiting block 1089 arranged on both sides of the punching needle 1088, so as to avoid the problem of paper scraps falling out.

[0060] When the punching needle 1088 is inserted into the receiving pipe 10811 to cooperate with the positioning shaft 10812 to realize the punching activity, the limiting blocks 1089 on both sides of the punching needle 1088 will cooperate with the external inclined surface to be extruded to realize the inward movement activity. When the limiting blocks 1089 move inward, the spring sheet 10810 abutting to the inner side of the limiting blocks 1089 will be extruded and compressed. In this way, the paper scraps generated by the punching can be moved to the upper end of the limiting blocks 1089 on both sides. However, when the punching needle 1088 moves upward subsequently, the limiting blocks 1089 on both sides will be released from the extrusion state and cooperate with the spring sheet 10810 to realize the outward movement limiting activity. Thus, the paper scraps generated by the punching will be limited by the limiting blocks 1089 on both sides and stably stay inside the punching needle 1088 to avoid the paper scraps from falling off. When the subsequent punching activity is performed again, the paper scraps will be collected by the negative pressure adsorption activity along the communicating opening 1084 and the hollow pipeline inside the serial connection plate 1081. In this way, the negative pressure adsorption effect of the paper scraps is greatly improved, and the problem of paper scraps blocking is avoided. The above description is only the preferred examples of the present application and is not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for preparing an environmentally friendly adhesive label, characterized in that, It comprises the following steps: S1: coating the adhesive layer (300) on the release paper layer (200), and pressing the label layer (400) on the adhesive layer (300) to make the adhesive label base paper; S2: unwinding and developing the adhesive label base paper and transmitting it to the printing process; S3: printing patterns or characters on the adhesive label base paper by the printing machine, and coating the adhesive label base paper with varnish; S4: punching the required holes on the outside of the adhesive label base paper using the punching equipment, and cutting the continuous adhesive label base paper to the length of the set semi-finished product using the cutting machine; S5: cutting the label into the predetermined size by the cutting equipment, and completing the processing and preparation of the adhesive label; The punching equipment comprises a rack (1), a conveying belt (2) mounted on the front side of the upper end of the rack (1), a processing table (3) arranged on the rear side of the upper end of the rack (1), a controller (4) arranged on the left side of the processing table (3), a receiving plate (5) arranged on the upper end of the processing table (3), support rods (6) arranged on the left and right sides of the processing table (3), a bracket (7) connected to the upper end of the support rods (6), a pneumatic cylinder (8) mounted on the upper end of the bracket (7), a moving plate (9) connected to the lower end of the pneumatic cylinder (8), and a self-cleaning punching device (10) connected to the rear side of the bracket (7) and connected to the inside of the moving plate (9); The self-cleaning punching device (10) comprises fixed frames (101) connected to the two sides of the bracket (7), vertical rods (102) inserted into the rear side of the fixed frames (101), a frame body (103) connected to the lower end of the vertical rods (102), a servo motor (104) mounted on the left side of the frame body (103), an adjusting structure (105) arranged in the inside of the frame body (103) and connected to the output end of the servo motor (104), paper suction assemblies (106) arranged on the two sides of the inside of the frame body (103), a moving shell (107) arranged on the two sides of the inside of the moving plate (9) and connected to the front side of the paper suction assemblies (106), and a punching element (108) mounted on the lower end of the moving shell (107). The paper suction assembly (106) comprises a shell (1061) arranged at both sides of the inside of the frame body (103), a duct (1062) butted at the front side of the shell (1061), a negative pressure fan (1063) mounted at the rear side of the shell (1061), a collecting cover (1064) arranged in the shell (1061) and connected with the duct (1062) and the negative pressure fan (1063), a filter screen (1065) arranged in the collecting cover (1064), a bottom plate (1066) rotationally connected to the lower end of the shell (1061), a connecting arm (1067) butted at one side of the bottom plate (1066), an abutting rod (1068) rotationally connected to the outer side of the connecting arm (1067), an abutting strip (1069) inserted into the lower end of the abutting rod (1068), a first compression spring (10610) arranged in the abutting rod (1068) and connected with the outer side of the upper end of the abutting strip (1069), a fixed block (10611) fixed to the outer side of the shell (1061) and connected with the abutting strip (1069), and a sweeping and pouring structure (109) arranged in the collecting cover (1064) and connected with the outer side of the filter screen (1065). The sweeping and pouring structure (109) comprises a first disc (1091) arranged in the middle of the filter screen (1065) and connected with the center of the fan blade of the negative pressure fan (1063), a brush plate (1092) mounted on the upper end of the first disc (1091), a connecting rod (1093) inserted into both sides of the first disc (1091), a second disc (1094) butted at the other side of the connecting rod (1093), a swinging plate (1095) butted at the front side of the second disc (1094), an insertion shaft (1096) inserted into the upper end of the swinging plate (1095), a push block (1097) fixed to the upper end of the insertion shaft (1096), a spring (1098) butted at the lower end of the insertion shaft (1096), a collecting shell (1099) mounted at the lower end of the collecting cover (1064), a baffle (10910) arranged in the collecting shell (1099), a long rod (10911) butted at the outer end of one side of the baffle (10910), and a reset spring (10912) mounted on one side of the collecting shell (1099) and connected with one side of the baffle (10910).

2. The preparation method of the environment-friendly adhesive label according to claim 1, characterized in that: The adjusting structure (105) comprises a screw rod (1051) rotationally connected to the inside of the frame body (103), a connecting plate (1052) threadedly butted at both sides of the screw rod (1051) and connected with the upper end of the paper suction assembly (106), and a guide rod (1053) inserted into both sides of the connecting plate (1052).

3. The preparation method of the environment-friendly adhesive label according to claim 1, characterized in that: The punching member (108) comprises a series connection plate (1081) built in the mobile shell (107), a rotating tube (1082) butted in the series connection plate (1081), a transmission groove (1083) opened on the outer side of the rotating tube (1082), a through hole (1084) opened on the upper end of the rotating tube (1082), a sleeve tube (1085) sleeved on the outer side of the rotating tube (1082), a transmission shaft (1086) inserted on the upper end of the sleeve tube (1085), a second compression spring (1087) installed on the outer side of the sleeve tube (1085) and the rotating tube (1082), a punching needle (1088) butted on the lower end of the sleeve tube (1085), a limiting block (1089) arranged on both sides in the punching needle (1088), and a spring sheet (10810) butted on the inner side of the limiting block (1089).

4. The preparation method of the environment-friendly adhesive label according to claim 3, characterized in that: The punching member (108) further comprises a receiving tube (10811) equidistantly arranged on both sides of the upper end of the receiving plate (5) and a positioning shaft (10812) fixedly arranged in the receiving tube (10811), and the receiving tube (10811) is opposite to the punching needle (1088) in the up-down direction.

5. The label prepared by the method of claim 1, wherein the label is an environmentally friendly label. The adhesive label body (100) comprises a release paper layer (200), an adhesive layer (300) and a label layer (400), the upper end of the release paper layer (200) is coated with the adhesive layer (300), and the upper end of the adhesive layer (300) is connected with the label layer (400).

6. The label according to claim 5, wherein: The release paper layer (200) and the adhesive layer (300) are respectively made of glassine paper and polycarbonate adhesive.

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