An adjustable label suction drum

Abstract

The present invention relates to the technical field of labeling equipment, and specifically relates to an adjustable label suction drum, which includes an adsorption module and an adjustment module. The adsorption module can adsorb labels. The adsorption module includes a drum body, a number of fixed seats, a number of rear suction blocks and a number of front suction blocks. The inner side of the drum body is fixedly connected to the side surfaces of the number of fixed seats. The side surfaces of the number of rear suction blocks and the number of front suction blocks are all slidably inserted into the inner side surfaces of the adjacent fixed seats. A circular groove three is formed on the side surface of the fixed seat. In the present invention, a number of sliding seats are slidably connected to the side surface of the drum body. When it is necessary to adsorb a label with a longer length, the rear suction block can adsorb the rear end of the label, and then the sliding seat can adsorb the front end of the label. The sliding seat can slide on the side surface of the drum body, so as to adapt to the adsorption of labels with different lengths, without the need to configure drums of various sizes, and at the same time, there is no need to replace the drum body, which is beneficial to the rapid progress of processing.

Description

Technical Field

[0001] The present invention relates to the technical field of labeling equipment, and specifically relates to an adjustable label suction drum. Background Art

[0002] The label suction drum is an important component on the labeling machine. After the label is drawn out from the reel and passes through the conveying device and the cutting device, the label film is adsorbed on the drum surface through the vacuum adsorption mechanism, and the back side is coated with glue during the rotation process. When the label is transmitted to contact the container to be labeled, the vacuum holes in the suction drum are filled with air, and the label is attached to the container surface due to the loss of the suction force, completing the labeling process. When the existing suction drum is in use, due to the fixed size of the drum body, the positions of the holes on the drum body for adsorbing the label are relatively fixed. When adsorbing a label with a longer length, since the end of the label may extend out of the adsorption area, the adsorption effect on the end of the label with a longer length is poor. Therefore, when adsorbing a label with a longer length, it is necessary to replace the suction drum with different sizes. And due to the different widths of different labels, when adsorbing a label with a smaller width, there is a situation where some adsorption holes are not utilized, which is prone to energy waste. Summary of the Invention

[0003] The purpose of the present invention is to provide an adjustable label suction drum to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] An adjustable label suction drum includes an adsorption module and an adjustment module;

[0006] The adsorption module can adsorb the label. The adsorption module includes a drum body, a number of fixed seats, a number of rear suction blocks and a number of front suction blocks. The inner side surface of the drum body is fixedly connected to the side surfaces of the number of fixed seats. The side surfaces of the number of rear suction blocks and the number of front suction blocks are slidably inserted into the inner side surfaces of the adjacent fixed seats. Circular groove three is opened on the side surface of the fixed seat. A number of connection holes one are opened on the side surface of the rear suction block, and a number of connection holes two are opened on the side surface of the front suction block. A number of circular groove one and circular groove two are opened on the bottom surface of the drum body corresponding to the rear suction block and the front suction block. A number of adsorption holes are opened on the inner side surfaces of the circular groove one and the circular groove two. A number of sliding seats are slidably connected to the side surface of the drum body corresponding to the circular groove two;

[0007] The adjustment module is arranged at the bottom of the adsorption module.

[0008] Furthermore, a clamping screw that is screwed with the top of the fixed seat is screwed on the top surfaces of both the rear suction block and the front suction block. The drum body is equipped with a number of cushion blocks. A number of circular holes are opened on the side surface of the cushion block. A clamping block is fixedly connected to the top of the side surface of the cushion block. A positioning hole is opened on the top surface of the clamping block.

[0009] Preferably, a connecting screw that abuts against the bottom surface of the drum body is screwed onto the top surface of the sliding seat.

[0010] Preferably, a friction disc is fixedly connected to the bottom surface of the drum body.

[0011] Furthermore, the adjustment module includes:

[0012] A connecting frame is arranged at the bottom of the drum body. A plurality of fixing blocks fixedly connected to the side surface of the friction disc are fixedly connected to the inner side surface of the connecting frame. A plurality of fixing rings are fixedly connected to the top surface of the connecting frame corresponding to the first circular groove and the second circular groove. A fixing pipe is fixedly connected to the inner side surface of the fixing ring.

[0013] A plurality of plugging mechanisms are respectively arranged at the tops of the plurality of fixing pipes.

[0014] Furthermore, each plugging mechanism includes two positioning rings, two corrugated pipes, two sliding rings, and a return spring;

[0015] Both of the two positioning rings are arranged at the top of the corresponding fixing pipe. The top surface of the fixing pipe is fixedly connected to the bottom surface of the bottom positioning ring. The top surface of the bottom positioning ring abuts against the bottom surface of the drum body. The top inner side surfaces of the first circular groove and the second circular groove are both slidably connected to the inner side surface of the adjacent positioning ring;

[0016] The two corrugated pipes are respectively fixedly connected to the opposite surfaces of the two positioning rings;

[0017] The two sliding rings are respectively fixedly connected to one ends of the two corrugated pipes close to each other. The inner side surfaces of the first circular groove and the second circular groove are both slidably connected to the side surface of the adjacent sliding ring;

[0018] The return spring is fixedly connected to the opposite surfaces of the two sliding rings.

[0019] Furthermore, the plugging mechanism further includes a positioning rod and two support frames;

[0020] The positioning rod is arranged inside the two sliding rings;

[0021] The two support frames are respectively fixedly connected to the inner side surfaces of the two positioning rings. Both ends of the positioning rod are fixedly connected to the inner side surfaces of the adjacent support frames.

[0022] Furthermore, a connecting block is fixedly connected to the inner side surface of the sliding ring. Two connecting ropes are arranged inside the fixing pipe. One end of a connecting rope passes through the inside of the positioning rod and is fixedly connected to the bottom surface of the top connecting block. And one end of the other connecting rope passes through the inside of the positioning rod and is fixed to the top surface of the bottom connecting block. The other ends of the two connecting ropes both pass through the inside of the connecting frame.

[0023] Furthermore, the adjustment module further includes a first adjustment ring, a second adjustment ring, a first limit screw, and a second limit screw;

[0024] The adjusting ring one is rotatably connected to the inner side surface of the connecting frame, and the other end of a connecting rope passes through the inside of the adjusting ring one. A limiting groove one is formed on one side surface of the adjusting ring one;

[0025] The adjusting ring two is rotatably connected to the inner side surface of the connecting frame. The inner side surface of the adjusting ring one is rotatably connected to the side surface of the adjusting ring two. The other end of the other connecting rope passes through the inside of the adjusting ring two. A limiting groove two is formed on the side surface of the adjusting ring two;

[0026] The limiting screw one is screwed and connected to the side surface of the connecting frame, and one end of the limiting screw one abuts against the side surface of the adjusting ring one;

[0027] The limiting screw two is screwed and connected to the bottom surface of the adjusting ring two, and the top end of the limiting screw two abuts against the bottom surface of the adjusting ring one.

[0028] Furthermore, limiting blocks are slidably connected to the inner side surfaces of the limiting groove one and the limiting groove two corresponding to the connecting rope. The connecting rope passes through the inside of the corresponding limiting block, and a butting screw is screwed and connected to the side surface of the limiting block.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. A plurality of sliding seats are slidably connected to the side surface of the drum body. The rear end and the front end of the label can be adsorbed by the rear suction block and the front suction block respectively, and the middle part of the label can be adsorbed through the adsorption holes on the circular groove one. When adsorbing a label with a longer length, the rear end of the label can be adsorbed by the rear suction block, and the label can be spanned across the front suction block, and then the front end of the label can be adsorbed by the sliding seat. The sliding seat can slide on the side surface of the drum body, so as to adapt to the adsorption of labels with different lengths, without the need to configure drums of various sizes, and at the same time, there is no need to replace the drum body, which is beneficial to the rapid progress of processing.

[0031] 2. The circular groove one and the circular groove two are both slidably connected to the sliding ring. The return spring can push the two sliding rings apart. The connecting block can be driven to move by pulling the connecting rope, and the connecting block can drive the sliding ring to move, so as to adjust the positions of the two sliding rings, so that the corrugated pipe extends to block the corresponding adsorption holes. In this way, the idle adsorption holes can be blocked according to the width and height of the label, and the power of the vacuum adsorption mechanism can be reduced as needed, which is beneficial to reducing energy consumption, and the two sliding rings in the circular groove two can be surrounded as needed, so as to block all the adsorption holes on the idle circular groove two. Description of the Drawings

[0032] Figure 1 is the overall structural schematic diagram of an adjustable label suction drum of the present invention;

[0033] Figure 2 is the structural schematic diagram of the drum body in the present invention;

[0034] Figure 3 It is a schematic diagram of the internal structure of the fixing base in the present invention;

[0035] Figure 4 It is a schematic top view structure diagram of the rear suction block in the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the spacer block in the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the adjustment module in the present invention;

[0038] Figure 7 It is a schematic diagram of the structure of the plugging mechanism in the present invention;

[0039] Figure 8 It is a schematic diagram of the internal structure of the plugging mechanism in the present invention;

[0040] Figure 9 It is a schematic diagram of the internal structure of the connection frame in the present invention;

[0041] Figure 10 It is a schematic diagram of the structure of the first adjustment ring and the second adjustment ring in the present invention;

[0042] Figure 11 It is a schematic diagram of the structure of the limit block in the present invention.

[0043] In the figure: 100, adsorption module; 110, drum body; 111, first circular groove; 112, adsorption hole; 113, second circular groove; 120, fixing base; 121, third circular groove; 130, rear suction block; 131, first connecting hole; 140, front suction block; 141, second connecting hole; 150, sliding seat; 151, connecting screw; 160, friction disc; 170, positioning screw; 200, adjustment module; 210, connection frame; 211, fixing block; 212, fixing tube; 213, fixing ring; 220, first adjustment ring; 221, first limiting groove; 230, second adjustment ring; 231, second limiting groove; 240, plugging mechanism; 241, positioning ring; 242, corrugated pipe; 243, sliding ring; 244, return spring; 245, positioning rod; 246, support frame; 247, connecting block; 250, connecting rope; 260, limit block; 261, abutting screw; 270, first limiting screw; 280, second limiting screw; 300, spacer block; 310, round hole; 320, clamping block; 321, positioning hole. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Please refer to Figures 1-6 , in an embodiment of the present invention, an adjustable label suction drum includes an adsorption module 100 and an adjustment module 200;

[0046] The adsorption module 100 can adsorb labels. The adsorption module 100 includes a drum body 110, a plurality of fixed seats 120, a plurality of rear suction blocks 130 and a plurality of front suction blocks 140. The inner side surface of the drum body 110 is fixedly connected to the side surfaces of the plurality of fixed seats 120. The side surfaces of the plurality of rear suction blocks 130 and the plurality of front suction blocks 140 are slidably inserted into the inner side surfaces of the adjacent fixed seats 120. The rear suction blocks 130 and the front suction blocks 140 are alternately distributed on the drum body 110. The rear suction blocks 130 and the front suction blocks 140 are grouped in pairs. The rear suction blocks 130 are used to adsorb the rear end of the label paper, while the front suction blocks 140 are used to adsorb the front end of the label paper. A circular groove three 121 is provided on the side surface of the fixed seat 120. A plurality of connecting holes one 131 are provided on the side surface of the rear suction block 130, and a plurality of connecting holes two 141 are provided on the side surface of the front suction block 140;

[0047] A plurality of circular grooves one 111 and circular grooves two 113 are provided on the bottom surface of the drum body 110 corresponding to the rear suction blocks 130 and the front suction blocks 140. A plurality of adsorption holes 112 are provided on the inner side surfaces of the circular grooves one 111 and the circular grooves two 113. A plurality of sliding seats 150 are slidably connected to the side surface of the drum body 110 corresponding to the circular grooves two 113. A connecting screw 151 that abuts against the bottom surface of the drum body 110 is screwed on the top surface of the sliding seat 150. A friction disc 160 is fixedly connected to the bottom surface of the drum body 110. The adjustment module 200 is arranged at the bottom of the adsorption module 100.

[0048] Specifically, the inside of the first circular groove 111 and the second circular groove 113 are both connected to the vacuum adsorption mechanism through the elbow pipe at the top of the drum body 110, and the inside of the third circular groove 121 is connected to the vacuum adsorption mechanism through a pipe fitting. The inside of the rear suction block 130 communicates with the inside of the third circular groove 121. In this way, the vacuum adsorption mechanism can generate negative pressure inside the third circular groove 121 and the rear suction block 130, and then adsorb the end of the label through the first connection hole 131. At the same time, the vacuum adsorption mechanism can generate negative pressure inside the first circular groove 111 and the second circular groove 113, and can adsorb the middle of the label through the adsorption hole 112. The rear suction block 130 and the front suction block 140 can respectively adsorb the rear end and the front end of the label, and the middle of the label can be adsorbed through the adsorption hole 112 on the first circular groove 111. When adsorbing a label with a longer length, the rear end of the label can be adsorbed by the rear suction block 130. Since the air in the corresponding sliding seat 150 can be extracted through the adsorption hole 112, the front end of the label can be adsorbed through the hole on the sliding seat 150, so as to adsorb the label with a longer length. The connection screw 151 can be loosened so that the end of the connection screw 151 no longer abuts against the bottom surface of the drum body 110. At this time, the sliding seat 150 can slide on the side surface of the drum body 110, so as to adapt to the adsorption of labels with different lengths. There is no need to configure drums 110 of various sizes, and at the same time, there is no need to replace the drum body 110, which is beneficial to the rapid progress of processing.

[0049] Embodiment 1

[0050] As Figures 3-5 shown, in this embodiment, clamping screws 170 that are screwed together with the top of the fixed seat 120 are screwed on the top surfaces of both the rear suction block 130 and the front suction block 140. The rear suction block 130 and the front suction block 140 can be fixed on the corresponding fixed seat 120 through the clamping screws 170. The drum body 110 is equipped with a number of cushion blocks 300. A number of round holes 310 are provided on the side surface of the cushion block 300, and a clamping block 320 is fixedly connected to the top of the side surface of the cushion block 300. A positioning hole 321 is provided on the top surface of the clamping block 320.

[0051] During specific implementation, when adsorbing a label with a longer length, the clamping screw 170 can be loosened, the front suction block 140 can be removed from the corresponding fixed seat 120, and then the cushion block 300 can be inserted into the corresponding fixed seat 120, so that the clamping screw 170 passes through the positioning hole 321 and is screwed together with the fixed seat 120 again. In this way, the cushion block 300 can be fixed on the fixed seat 120 through the clamping screw 170. The surface of the clamping screw 170 is relatively flat, which is convenient for the label to straddle the cushion block 300, and the middle of the label can be adsorbed through the round hole 310.

[0052] As Figures 6-8 shown, in this embodiment, the adjustment module 200 includes a connection frame 210 and a number of plugging mechanisms 240;

[0053] The connection frame 210 is arranged at the bottom of the drum body 110, and a plurality of fixing blocks 211 fixedly connected to the side of the friction disk 160 are fixedly connected to the inner side of the connection frame 210. The connection frame 210 is fixed to the friction disk 160 by the fixing blocks 211, so that the connection frame 210 is connected to the drum body 110. A plurality of fixing rings 213 are fixedly connected to the circular grooves 111 and 113 corresponding to the top surface of the connection frame 210, and a fixing tube 212 is fixedly connected to the inner side of the fixing ring 213. A plurality of blocking mechanisms 240 are respectively arranged on the top of the plurality of fixing tubes 212.

[0054] The blocking mechanism 240 includes two positioning rings 241, two bellows 242, two sliding rings 243, a return spring 244, a positioning rod 245, and two support frames 246;

[0055] The two positioning rings 241 are both arranged on the top of the corresponding fixed tube 212. The top surface of the fixed tube 212 is fixedly connected to the bottom surface of the bottom positioning ring 241. The top surface of the positioning ring 241 at the bottom abuts against the bottom surface of the drum body 110. The tops of the inner sides of the circular groove 111 and the circular groove 213 are both slidably connected to the inner sides of the adjacent positioning rings 241. The two bellows 242 are respectively fixedly connected to the opposite surfaces of the two positioning rings 241. The two sliding rings 243 are respectively fixedly connected to the ends of the two bellows 242 that are close to each other. The inner sides of the circular groove 111 and the circular groove 213 are both slidably connected to the sides of the adjacent sliding rings 243. The reset spring 244 is fixedly connected to the opposite surfaces of the two sliding rings 243.

[0056] In specific implementation, under the action of the reset spring 244, the two sliding rings 243 can be stretched open, and the positions of the two sliding rings 243 can be adjusted as needed to make the bellows 242 extend to block the corresponding adsorption hole 112. At this time, air will be sucked through the adsorption hole 112 between the two sliding rings 243. The air can enter between the two sliding rings 243, and then pass through the top sliding ring 243 and the inside of the bellows 242, and finally pass through the inside of the positioning ring 241 and flow out of the circular groove 1 111 or the circular groove 2 113. In this way, the idle adsorption hole 112 can be blocked according to the width and height of the label, and the power of the vacuum adsorption mechanism can be reduced as needed, which is beneficial to reducing energy consumption.

[0057] A telescopic rod may be provided on the sliding ring 243 , and the bellows 242 may be expanded by the telescopic rod to prevent the bellows 242 from closing.

[0058] Embodiment 2

[0059] Based on the first embodiment, Figures 8-9As shown, in this embodiment, the positioning rod 245 is disposed inside two sliding rings 243. Two support frames 246 are respectively fixedly connected to the inner sides of two positioning rings 241. Both ends of the positioning rod 245 are fixedly connected to the inner sides of adjacent support frames 246. The positioning rod 245 can connect the two support frames 246, thereby connecting the two positioning rings 241. The fixed pipe 212 can fix the bottom positioning ring 241. The bottom positioning ring 241 can limit the position of the top positioning ring 241 through the positioning rod 245. When air passes through the inside of the top positioning ring 241, it can pass through the side of the support frame 246. During installation, the plugging mechanism 240 can be directly inserted into the first circular groove 111 or the second circular groove 113.

[0060] A connection block 247 is fixedly connected to the inner side of the sliding ring 243. Two connection ropes 250 are disposed inside the fixed pipe 212. One end of a connection rope 250 passes through the inside of the positioning rod 245 and is fixedly connected to the bottom surface of the top connection block 247. And one end of the other connection rope 250 passes through the inside of the positioning rod 245 and is fixed on the top surface of the bottom connection block 247. The other ends of the two connection ropes 250 both pass through the inside of the connection frame 210. The connection ropes 250 can pass through the fixed pipe 212 and the inside of the fixed ring 213. The two connection ropes 250 both pass out of the inside of the positioning rod 245 through the hole in the middle of the positioning rod 245.

[0061] During specific implementation, when pulling down one connection rope 250, one connection rope 250 can drive the top sliding ring 243 to move downward through the connection block 247. When relaxing one connection rope 250, under the action of the return spring 244, the top sliding ring 243 can move upward. When pulling down the other connection rope 250, the other connection rope 250 will pull the bottom connection block 247 to move upward, thereby making the bottom sliding ring 243 move upward. When relaxing the connection rope 250, under the action of the return spring 244, the bottom sliding ring 243 can move downward. In this way, the positions of the two sliding rings 243 can be respectively adjusted through the two connection ropes 250 as needed, so that the corrugated pipe 242 extends to block the corresponding adsorption holes 112 and plug the idle adsorption holes 112.

[0062] As Figures 9-11 shown, in this embodiment, the adjustment module 200 further includes an adjustment ring one 220, an adjustment ring two 230, a limit screw one 270, and a limit screw two 280;

[0063] The adjusting ring 220 is rotatably connected to the inner side surface of the connecting frame 210. The other end of a connecting rope 250 passes through the inside of the adjusting ring 220. A number of L-shaped grooves are provided inside both the adjusting ring 220 and the adjusting ring 230. The connecting rope 250 can pass through the inside of the corresponding L-shaped grooves. A limiting groove 221 is provided on the side surface of the adjusting ring 220. The adjusting ring 230 is rotatably connected to the inner side surface of the connecting frame 210. The inner side surface of the adjusting ring 220 is rotatably connected to the side surface of the adjusting ring 230. The other end of the other connecting rope 250 passes through the inside of the adjusting ring 230. A limiting groove 231 is provided on the side surface of the adjusting ring 230. The limiting screw 270 is screwed onto the side surface of the connecting frame 210. One end of the limiting screw 270 abuts against the side surface of the adjusting ring 220. The limiting screw 280 is screwed onto the bottom surface of the adjusting ring 230. The top end of the limiting screw 280 abuts against the bottom surface of the adjusting ring 220. The limiting screw 270 can limit the position of the adjusting ring 220. The limiting screw 280 can limit the adjusting ring 230 on the adjusting ring 220, thereby restricting the adjusting ring 220 and the adjusting ring 230 on the connecting frame 210 and preventing the rotation of the adjusting ring 220 and the adjusting ring 230;

[0064] Limiting blocks 260 are slidably connected to the inner side surfaces of the limiting groove 221 and the limiting groove 231 corresponding to the connecting rope 250. The connecting rope 250 passes through the inside of the corresponding limiting blocks 260. The limiting blocks 260 can slide along the inside of the limiting groove 221 or the limiting groove 231. Abutting screws 261 are screwed onto the side surfaces of the limiting blocks 260.

[0065] During specific implementation, after the connecting rope 250 passes through the limiting block 260, the limiting block 260 can be toggled so that the inner wall of the hole on the limiting block 260 abuts against the connecting rope 250, and the connecting rope 250 is fixed by the limiting block 260. At the same time, the hole on the limiting block 260 is staggered from the L-shaped groove, and the end of the L-shaped groove can be blocked by the limiting block 260. After the limiting block 260 fixes the connecting rope 250 on the adjusting ring 220 or the adjusting ring 230, the limiting screw 270 and the limiting screw 280 can be loosened. At this time, the adjusting ring 220 and the adjusting ring 230 can be rotated relative to the connecting frame 210. The adjusting ring 220 and the adjusting ring 230 can pull the connecting rope 250 to move, and then the position of the sliding ring 243 can be adjusted as needed. The adjustment is relatively simple and convenient to use. After the adjustment is completed, the limiting screw 270 and the limiting screw 280 are tightened to limit the positions of the adjusting ring 220 and the adjusting ring 230. Then, the abutting screw 261 at the bottom of the corresponding circular groove 113 can be loosened, and then the connecting rope 250 can be pulled as needed to enclose the two sliding rings 243, so that the inside of the unused circular groove 113 can be blocked. Then, the limiting block 260 can be toggled to restrict the position of the connecting rope 250 again by the limiting block 260.

[0066] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0067] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable label suction drum, characterized in that, Comprising: An adsorption module (100) capable of adsorbing tags. The adsorption module (100) includes a drum body (110), a plurality of fixed seats (120), a plurality of rear suction blocks (130) and a plurality of front suction blocks (140). The inner side surface of the drum body (110) is fixedly connected to the side surfaces of the plurality of fixed seats (120). The side surfaces of the plurality of rear suction blocks (130) and the plurality of front suction blocks (140) are all slidably inserted into the inner side surfaces of the adjacent fixed seats (120). A circular groove three (121) is formed on the side surface of the fixed seat (120). A plurality of connection holes one (131) are formed on the side surface of the rear suction block (130), and a plurality of connection holes two (141) are formed on the side surface of the front suction block (140). A plurality of circular grooves one (111) and circular grooves two (113) are formed on the bottom surface of the drum body (110) corresponding to the positions between the rear suction blocks (130) and the front suction blocks (140). A plurality of adsorption holes (112) are formed on the inner side surfaces of the circular grooves one (111) and the circular grooves two (113). A plurality of sliding seats (150) are slidably connected to the side surface of the drum body (110) corresponding to the circular grooves two (113). An adjustment module (200) provided at the bottom of the adsorption module (100). A friction disc (160) is fixedly connected to the bottom surface of the drum body (110). The adjustment module (200) includes: A connection frame (210) provided at the bottom of the drum body (110). A plurality of fixed blocks (211) fixedly connected to the side surface of the friction disc (160) are fixedly connected to the inner side surface of the connection frame (210). A plurality of fixed rings (213) are fixedly connected to the top surface of the connection frame (210) corresponding to the circular grooves one (111) and the circular grooves two (113). A fixed pipe (212) is fixedly connected to the inner side surface of the fixed ring (213). A plurality of blocking mechanisms (240) respectively provided at the tops of the plurality of fixed pipes (212). The blocking mechanism (240) includes: Two positioning rings (241) both provided at the top of the corresponding fixed pipe (212). The top surface of the fixed pipe (212) is fixedly connected to the bottom surface of the bottom positioning ring (241). The top surface of the bottom positioning ring (241) abuts against the bottom surface of the drum body (110). The top inner side surfaces of the circular grooves one (111) and the circular grooves two (113) are both slidably connected to the inner side surfaces of the adjacent positioning rings (241). Two bellows (242) respectively fixedly connected to the opposite surfaces of the two positioning rings (241). Two sliding rings (243) respectively fixedly connected to the closer ends of the two bellows (242). The inner side surfaces of the circular grooves one (111) and the circular grooves two (113) are both slidably connected to the side surfaces of the adjacent sliding rings (243). A return spring (244) fixedly connected to the opposite surfaces of the two sliding rings (243). The blocking mechanism (240) further includes: A positioning rod (245) provided inside the two sliding rings (243). Two support frames (246) respectively fixedly connected to the inner side surfaces of the two positioning rings (241). Both ends of the positioning rod (245) are fixedly connected to the inner side surfaces of the adjacent support frames (246). A connecting block (247) is fixedly connected to the inner side surface of the sliding ring (243). Two connecting ropes (250) are arranged inside the fixed pipe (212). One end of a connecting rope (250) passes through the inside of the positioning rod (245) and is fixedly connected to the bottom surface of the top connecting block (247), and one end of the other connecting rope (250) passes through the inside of the positioning rod (245) and is fixed to the top surface of the bottom connecting block (247). The other ends of the two connecting ropes (250) both pass through the inside of the connecting frame (210); The adjusting module (200) further includes: A first adjusting ring (220) is rotatably connected to the inner side surface of the connecting frame (210). The other end of a connecting rope (250) passes through the inside of the first adjusting ring (220). A first limiting groove (221) is formed in the side surface of the first adjusting ring (220); A second adjusting ring (230) is rotatably connected to the inner side surface of the connecting frame (210). The inner side surface of the first adjusting ring (220) is rotatably connected to the side surface of the second adjusting ring (230). The other end of the other connecting rope (250) passes through the inside of the second adjusting ring (230). A second limiting groove (231) is formed in the side surface of the second adjusting ring (230); A first limiting screw (270) is screwed to the side surface of the connecting frame (210). One end of the first limiting screw (270) abuts against the side surface of the first adjusting ring (220); A second limiting screw (280) is screwed to the bottom surface of the second adjusting ring (230). The top end of the second limiting screw (280) abuts against the bottom surface of the first adjusting ring (220).

2. The adjustable label sucking drum according to claim 1, characterized in that Clamping screws (170) that are screwed to the top of the fixed seat (120) are screwed to the top surfaces of both the rear suction block (130) and the front suction block (140). A number of cushion blocks (300) are provided in a supporting manner for the drum body (110). A number of circular holes (310) are formed in the side surface of the cushion block (300). A clamping block (320) is fixedly connected to the top of the side surface of the cushion block (300). A positioning hole (321) is formed in the top surface of the clamping block (320).

3. The adjustable label sucking drum according to claim 1, wherein A connecting screw (151) that abuts against the bottom surface of the drum body (110) is screwed to the top surface of the sliding seat (150).

4. The adjustable label suction drum according to claim 1, wherein, Limiting blocks (260) are slidably connected to the inner side surfaces of the first limiting groove (221) and the second limiting groove (231) corresponding to the connecting rope (250). The connecting rope (250) passes through the inside of the corresponding limiting block (260). A counter-bracing screw (261) is screwed to the side surface of the limiting block (260).

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