A double-header positioning labeling machine

Abstract

The utility model relates to a labeling machine technical field especially relates to a double-label positioning labeling machine. Its main purpose is the double-label manual labeling operation of tea can body, because of the individual difference of manual operation, the limited precision and easy fatigue, it is difficult to guarantee that each can body double label pasting position is consistent, influences product packing aesthetic degree and uniformity, is not favorable to market competitiveness and brand image maintenance problem, proposes the following technical scheme: including the electric conveyer belt that carries out the conveyance to can body, a plurality of baffle groups are arranged in the electric conveyer belt top, the baffle is used for guiding can body, a plurality of support assemblies are installed in the baffle side, the support assembly is used for adjusting baffle position and supporting it, the feeding mechanism is set up in the electric conveyer belt one side. The utility model can guarantee that tea can body double label pasting position is consistent, promotes product packing aesthetic degree and uniformity, strengthens market competitiveness and maintains brand image.

Description

Technical Field

[0001] This utility model relates to the field of labeling machine technology, and in particular to a dual-label-head positioning labeling machine. Background Technology

[0002] In the production and packaging of tea products, to comprehensively display product information to consumers, tea canisters typically require two different types of labels, such as product information labels and anti-counterfeiting and traceability labels, or brand identification labels and ingredient information labels. The precision with which these labels are affixed to the canister surface directly affects the aesthetic appeal of the tea product and the consistency of packaging across batches, making it a crucial indicator of tea product packaging quality.

[0003] Currently, many companies in the industry still use manual labeling for double-label application on tea canisters. This method relies mainly on the operator's experience and visual judgment to determine the placement of the two labels. However, in actual production, due to individual differences in manual operation, limited hand precision, and fatigue from prolonged work, it is difficult to guarantee that the placement of the two labels on every tea canister is completely consistent. Some canisters may have labels that are misaligned, misplaced, or have inconsistent spacing between the two labels. This not only damages the overall aesthetics of the tea product packaging and reduces the product's market competitiveness, but may also lead consumers to question the product quality due to inconsistent label placement, which is detrimental to maintaining the brand image. In view of this, this utility model proposes a double-label head positioning labeling machine. Utility Model Content

[0004] The purpose of this invention is to address the problem in the background art where, in the manual labeling of tea canisters, due to individual differences in manual operation, limited precision, and easy fatigue, it is difficult to ensure that the double labels are pasted in the same position on each can, which affects the aesthetics and uniformity of the product packaging and is detrimental to market competitiveness and brand image maintenance. The invention proposes a double label head positioning labeling machine.

[0005] The technical solution of this utility model is as follows: A dual-head positioning labeling machine includes an electric conveyor belt for conveying a can; multiple sets of baffles disposed above the electric conveyor belt for guiding the can; multiple sets of support components installed on the sides of the baffles for adjusting the position of the baffles and supporting them; a feeding mechanism disposed on one side of the electric conveyor belt for ensuring that the can passes through at a uniform speed; two sets of rotating components located behind the feeding mechanism for driving the can to rotate and thus affixing the label; two sets of positioning mechanisms disposed on the side of the electric conveyor belt away from the rotating components for pushing the can closer to and into contact with the rotating components; and at least two sets of label output units, with the two sets of label output units respectively disposed on the side of the two sets of rotating components closer to the feeding mechanism, and the label output units for outputting labels that contact the can.

[0006] Optionally, the support assembly includes a fixing block fixedly connected to the side of the electric conveyor belt, a first adjusting rod slidably connected in the fixing block, an adjusting block fixedly connected to the top of the first adjusting rod, a second adjusting rod slidably connected in the adjusting block, and one end of the second adjusting rod fixedly connected to a baffle.

[0007] Optionally, the fixing block is threaded with a first fastening screw, one end of which contacts the first adjusting rod, and the adjusting block is threaded with a second fastening screw, one end of which contacts the second adjusting rod.

[0008] Optionally, the feeding mechanism includes a mounting plate fixedly connected to the side of the electric conveyor belt, a first servo motor is mounted on the side of the mounting plate, a rotating disk is fixedly connected to the output end of the first servo motor, and a rubber ring is fitted around the outer ring of the rotating disk.

[0009] Optionally, a set of the baffles is provided with clearance grooves at positions corresponding to the rotating disk.

[0010] Optionally, the rotating assembly includes a fixed platform disposed on the side of the electric conveyor belt, a side plate fixedly connected to the top of the fixed platform, a hollow fixed box installed on the side plate near the electric conveyor belt, a rotating rod rotatably connected in the fixed box, and a roller fixedly connected to the outer ring of the rotating rod.

[0011] Optionally, a second servo motor is installed on the top of the fixed box. The output end of the second servo motor passes through the top of the fixed box and is fixedly connected to a first synchronous pulley. The outer ring of the rotating rod is fixedly connected to a second synchronous pulley. Both the first and second synchronous pulleys are located inside the fixed box, and a synchronous belt is fitted on the first and second synchronous pulleys.

[0012] Optionally, the positioning mechanism includes an adjusting bracket disposed on the side of the electric conveyor belt away from the rotating component. A push rod motor is mounted on the adjusting bracket. A synchronization plate is fixedly connected to the output end of the push rod motor. Two sets of moving plates are fixedly connected to the side of the synchronization plate near the rotating component. Two sets of mounting plates are fixedly connected to the sides of the two sets of moving plates respectively. A positioning roller is rotatably connected between the two sets of mounting plates.

[0013] Optionally, an inclined plate is provided between the label output unit and the roller.

[0014] Optionally, it includes two sets of photoelectric sensors disposed above the electric conveyor belt, with the two sets of photoelectric sensors respectively disposed in front of the two sets of rotating components. The roller is provided with an inclined photoelectric sensor on the side away from the photoelectric sensor. It also includes a control box, with the electric conveyor belt, the first servo motor, the second servo motor and the push rod motor all electrically connected to the control box.

[0015] In summary, this application includes at least one of the following beneficial technical effects: This invention utilizes the coordinated operation of photoelectric sensors and photoelectric sensors. Two sets of photoelectric sensors detect the position based on the can weld and the first label, respectively. The control box precisely controls the label output unit to output the label, ensuring that both labels are pasted in the preset position on the can. Compared with manual labeling that relies on experience, this automated positioning structure effectively avoids label offset and misalignment, significantly improves the uniformity of labeling position on batches of tea cans, and ensures the aesthetics of product packaging. Furthermore, multi-dimensional adjustment can be achieved through the support components. Loosening the first fastening screw can push the first adjusting rod to slide within the fixed block, adjusting the height of the adjusting block and the baffle. Loosening the second fastening screw can push the second adjusting rod to slide within the adjusting block, changing the distance between the relative baffles. This adapts to tea canisters of different diameters and heights, improving the equipment's versatility and reducing the equipment investment costs for enterprises for different product specifications. In summary, this utility model can ensure that the two labels on the tea canister are pasted in the same position, improve the aesthetics and uniformity of the product packaging, enhance market competitiveness, and maintain brand image. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a dual-label-head positioning labeling machine; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the rotating component; Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure; Figure 5 yes Figure 3Enlarged diagram of point B in the middle.

[0017] Figure label: 1. Electric conveyor belt; 11. Support legs; 2. Baffle; 21. Leaving groove; 3. Support assembly; 31. Fixing block; 32. First adjusting rod; 33. Adjusting block; 34. Second adjusting rod; 35. First fastening screw; 36. Second fastening screw; 4. Feeding mechanism; 41. Mounting plate; 42. First servo motor; 43. Rotary disk; 44. Rubber ring; 5. Rotating assembly; 51. Fixed platform; 52. Side plate; 53. Fixed box; 54. Rotating rod; 55. Roller; 56. Second servo motor; 57. First synchronous pulley; 58. Second synchronous pulley; 59. Synchronous belt; 6. Positioning mechanism; 61. Adjusting bracket; 62. Push rod motor; 63. Synchronizing plate; 64. Moving plate; 65. Mounting plate; 66. Positioning roller; 7. Tag output unit; 71. Slant plate; 8. Photoelectric eye; 9. Photoelectric sensor. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0019] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example

[0024] like Figure 1 As shown, this utility model proposes a dual-label positioning labeling machine, including an electric conveyor belt 1 for conveying the can, and multiple sets of equidistant array support legs 11 at the bottom of the electric conveyor belt 1 for support. When the electric conveyor belt 1 is started, it drives the can to move. Multiple sets of baffles 2 are provided above the electric conveyor belt 1 to guide the can.

[0025] For further details, please refer to Figure 1 and Figure 2 The labeling machine also includes multiple sets of support components 3 installed on the side of the baffle 2. At least two sets of support components 3 are provided on the same side of the baffle 2 for support. The support components 3 are used to adjust the position of the baffle 2 and support it. The support components 3 include a fixing block 31 fixedly connected to the side of the electric conveyor belt 1. The position of the fixing block 31 is fixed. A first adjusting rod 32 is slidably connected in the fixing block 31. An adjusting block 33 is fixedly connected to the top of the first adjusting rod 32. The first adjusting rod 32 slides in the fixing block 31 to adjust the height of the adjusting block 33. A second adjusting rod 34 is slidably connected in the adjusting block 33. One end of the second adjusting rod 34 is fixedly connected to the baffle 2. The second adjusting rod 34 slides in the adjusting block 33 to adjust the distance between the two sets of baffles 2 that are arranged opposite to each other. A first fastening screw 35 is threadedly connected in the fixing block 31. One end of the first fastening screw 35 contacts the first adjusting rod 32. After the first fastening screw 35 is tightened, the position of the first adjusting rod 32 is fixed, thereby fixing the height of the baffle 2. The adjusting block 33 is threaded with a second fastening screw 36. One end of the second fastening screw 36 contacts the second adjusting rod 34. After the second fastening screw 36 is tightened, it fixes the position of the second adjusting rod 34, thereby fixing the distance between the two sets of baffles 2 that are set opposite to each other.

[0026] Furthermore, the labeling machine includes a feeding mechanism 4 located on one side of the electric conveyor belt 1. The feeding mechanism 4 ensures that the cans pass through at a uniform speed. The feeding mechanism 4 includes a mounting plate 41 fixedly connected to the side of the electric conveyor belt 1. A first servo motor 42 is mounted on the side of the mounting plate 41, and the position of the first servo motor 42 is fixed. A rotating disk 43 is fixedly connected to the output end of the first servo motor 42. After the first servo motor 42 starts, it drives the rotating disk 43 to rotate. A rubber ring 44 is fitted around the outer ring of the rotating disk 43. A set of baffles 2 has clearance grooves 21 at corresponding positions on the rotating disk 43. The rubber ring 44 contacts the can. As the rotating disk 43 rotates, it drives the can to pass through. The rotating disk 43 is controlled to rotate at a uniform speed to ensure that the cans pass through at a uniform speed. Excess cans accumulate in front of the feeding mechanism 4 to prevent the cans from passing through too quickly.

[0027] Specifically, such as Figures 3 to 5 As shown, the labeling machine includes two sets of rotating components 5 located behind the feeding mechanism 4. The rotating components 5 drive the can to rotate, thus applying the label. Each rotating component 5 includes a fixed platform 51 mounted on the side of the electric conveyor belt 1. A side plate 52 is fixedly connected to the top of the fixed platform 51. A hollow fixed box 53 is installed on the side of the side plate 52 near the electric conveyor belt 1. The positions of the fixed platform 51, side plate 52, and fixed box 53 are all fixed. A rotating rod 54 is rotatably connected to the fixed box 53, rotating while remaining in its original position. A roller 55 is fixedly connected to the outer ring of the rotating rod 54. When the rotating rod 54 rotates, it drives the roller 55 to rotate synchronously. After the label is applied to the can, the roller 55 rotates, causing the can to rotate synchronously, completely transferring the label onto the can. A second servo motor 56 is mounted on the top of the fixed box 53. The output end of the second servo motor 56 passes through the top of the fixed box 53 and is fixedly connected to a first synchronous wheel 57. After the second servo motor 56 starts, it drives the first synchronous wheel 57 to rotate. A second synchronous pulley 58 is fixedly connected to the outer ring of the rotating rod 54. When the second synchronous pulley 58 rotates, it drives the rotating rod 54 to rotate synchronously. The first synchronous pulley 57 and the second synchronous pulley 58 are both located inside the fixed box 53. A synchronous belt 59 is fitted on the first synchronous pulley 57 and the second synchronous pulley 58. When the first synchronous pulley 57 rotates, it drives the second synchronous pulley 58 to rotate synchronously through the synchronous belt 59.

[0028] Furthermore, the aforementioned labeling machine includes two sets of positioning mechanisms 6 located on the side of the electric conveyor belt 1 away from the rotating component 5. The positioning mechanisms 6 are used to push the can closer to and into contact with the rotating component 5. Each positioning mechanism 6 includes an adjusting bracket 61 located on the side of the electric conveyor belt 1 away from the rotating component 5. A push rod motor 62 is mounted on the adjusting bracket 61. The position of the push rod motor 62 can be adjusted via the adjusting bracket 61, which can be adjusted in both vertical and horizontal directions. This is existing technology and will not be described in detail here. A synchronization plate 63 is fixedly connected to the output end of the push rod motor 62. Two sets of moving plates 64 are fixedly connected to the side of the synchronization plate 63 near the rotating component 5. After the push rod motor 62 starts, it drives the two sets of moving plates 64 to move synchronously via the synchronization plate 63. Two sets of mounting plates 65 are fixedly connected to the sides of the two sets of moving plates 64, and a positioning roller 66 is rotatably connected between the two sets of mounting plates 65. When the moving plates 64 move, they drive the positioning roller 66 to move synchronously via the mounting plates 65. Thus, when the tank moves between the two sets of positioning rollers 66, the two sets of positioning rollers 66 push the tank closer to the roller 55, thereby driving the tank to move synchronously when the roller 55 rotates.

[0029] Furthermore, the aforementioned labeling machine includes two sets of label output units 7, which are respectively located on the side of the two sets of rotating components 5 near the feeding mechanism 4. The label output units 7 are used to output labels that contact the can body, with the adhesive side of the labels output by the label output units 7 facing the can body. An inclined plate 71 is provided between the label output unit 7 and the roller 55. The inclined plate 71 conveys the label to the side of the roller 55 near the positioning mechanism 6. Thus, after the can body is clamped by the roller 55 and the positioning roller 66, the label output by the label output unit 7 contacts the can body through the inclined plate 71. Then, as the roller 55 rotates, the can body rotates synchronously, ensuring the label is completely adhered to the outside of the can body. The label output unit 7 is existing technology and will not be described in detail here. Simultaneously, the rotation of the roller 55 and the positioning roller 66 can press the label firmly, ensuring a secure adhesion and preventing the label from falling off.

[0030] Finally, the labeling machine includes two sets of photocells 8 positioned above the electric conveyor belt 1. These photocells 8 are located in front of the two sets of rotating components 5. An inclined photoelectric sensor 9 is positioned on the side of the roller 55 away from the photocells 8. It also includes a control box, with the electric conveyor belt 1, the first servo motor 42, the second servo motor 56, and the push rod motor 62 all electrically connected to the control box. The photocells 8 sense the incoming can, and the control box, considering the conveying speed of the electric conveyor belt 1, activates the push rod motor 62 after 0.2 seconds. At this point, the can is positioned between the two sets of positioning rollers 66. The push rod motor 62 then drives the two sets of positioning rollers 66 to push the can into contact with the roller 55, clamping the can. Simultaneously, the can rotates synchronously with the roller 55. The photoelectric sensor 9 faces the can and, upon detecting the weld seam, sends a signal to the control box. The control box, after a 0.2-second delay, controls the label output unit 7 to output the label, ensuring uniform label placement. It is worth mentioning that the photoelectric sensor 9 on the side of the first set of rotating components 5 uses the weld as the detection reference, while the photoelectric sensor 9 on the side of the second set of rotating components 5 uses the label that was first affixed as the detection reference.

[0031] In this embodiment, firstly, the height and spacing of the baffles 2 are adjusted according to the size specifications of the tea canister. The first fastening screw 35 on the fixing block 31 is loosened, and the first adjusting rod 32 is pushed to slide within the fixing block 31, causing the adjusting block 33 and its connected second adjusting rod 34, as well as the baffles 2, to move up and down. Once the height of the baffles 2 is adapted to the canister's dimensions, the first fastening screw 35 is tightened. Next, the second fastening screw 36 on the adjusting block 33 is loosened, and the second adjusting rod 34 is pushed to slide within the adjusting block 33, adjusting the spacing between the two sets of baffles 2 to match the canister's diameter. Finally, the second fastening screw 36 is tightened to complete the fixing. Simultaneously, the position of the push rod motor 62 is adjusted via the adjusting bracket 61 to ensure that the positioning roller 66 can cooperate with the rotating assembly 5 to clamp the canister.

[0032] After the equipment is started, the electric conveyor belt 1 operates under the support of the support legs 11, conveying the tea canisters to the feeding mechanism 4. The control box controls the first servo motor 42 to start, driving the rotating disk 43 to rotate at a constant speed. The rubber ring 44 on the outer ring of the rotating disk 43 contacts the canister, and the canister is driven to pass through the guide area of ​​the baffle 2 at a constant speed through the clearance groove 21. Excess canisters accumulate in front of the feeding mechanism 4 to prevent the canisters from passing too fast and affecting the subsequent labeling accuracy.

[0033] When the tank moves to the front of the first set of rotating components 5, the corresponding photoelectric sensor 8 senses the approaching tank and transmits a signal to the control box. The control box, in conjunction with the conveying speed of the electric conveyor belt 1, controls the push rod motor 62 to start after a 0.2-second delay. The push rod motor 62, through the synchronization plate 63, drives two sets of moving plates 64 to synchronously approach the rotating component 5. The moving plates 64, through the mounting plate 65, drive the positioning roller 66 to push the tank into contact with and clamp it against the roller 55. The second servo motor 56 is always running, and its output drives the first synchronization wheel 57 to rotate. The first synchronization wheel 57, through the synchronization belt 59, drives the second synchronization wheel 58 and the rotating rod 54 to rotate synchronously. The rotating rod 54 rotates within the fixed box 53 and drives the roller 55 to rotate, thereby driving the tank to rotate synchronously. The photoelectric sensor 9 on the side of roller 55 away from photoelectric eye 8 detects the tank in real time. When the position of the weld seam of the tank is detected, a signal is sent to the control box. After a delay of 0.2 seconds, the control box controls the first set of label output units 7 to output the label. The label is conveyed by inclined plate 71 to the surface of the tank held by roller 55 and positioning roller 66. As the tank continues to rotate, the label is completely pasted and the pressing of roller 55 and positioning roller 66 ensures that the label is firmly pasted.

[0034] After the first labeling is completed, the push rod motor 62 retracts, causing the two sets of positioning rollers 66 to reset. The can continues to move with the electric conveyor belt 1 to the second set of rotating components 5. The process of photoelectric sensor 8 sensing, push rod motor 62 driving positioning rollers 66 to clamp the can, and second servo motor 56 driving roller 55 to rotate the can is repeated. At this time, the second set of photoelectric sensors 9 uses the label applied in the first application as the detection reference. After detecting the reference position, it sends a signal to the control box. The control box controls the second set of label output unit 7 to output the second label, which is guided by inclined plate 71 to be pasted to the preset position on the can, finally completing the precise positioning and labeling of the two labels.

[0035] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A dual-label head positioning labeling machine, characterized in that, include: An electric conveyor belt for transporting tanks (1); Multiple sets of baffles (2) are disposed above the electric conveyor belt (1), and the baffles (2) are used to guide the tank; Multiple sets of support components (3) are installed on the side of the baffle (2), and the support components (3) are used to adjust the position of the baffle (2) and support it; The feeding mechanism (4) is located on one side of the electric conveyor belt (1) and is used to ensure that the tank passes through at a constant speed. Two sets of rotating components (5) are located behind the feeding mechanism (4). The rotating components (5) are used to drive the tank to rotate to achieve the pasting of the label. Two sets of positioning mechanisms (6) are provided on the side of the electric conveyor belt (1) away from the rotating component (5). The positioning mechanisms (6) are used to push the tank closer to and into contact with the rotating component (5). At least two sets of label output units (7) are provided, and the two sets of label output units (7) are respectively disposed on the side of the two sets of rotating components (5) near the feeding mechanism (4). The label output units (7) are used to output labels that contact the can body.

2. The dual-label head positioning labeling machine according to claim 1, characterized in that, The support assembly (3) includes a fixed block (31) fixedly connected to the side of the electric conveyor belt (1), a first adjusting rod (32) is slidably connected in the fixed block (31), an adjusting block (33) is fixedly connected to the top of the first adjusting rod (32), a second adjusting rod (34) is slidably connected in the adjusting block (33), and one end of the second adjusting rod (34) is fixedly connected to the baffle (2).

3. A dual-label head positioning labeling machine according to claim 2, characterized in that, The fixing block (31) is threaded with a first fastening screw (35), one end of which is in contact with the first adjusting rod (32). The adjusting block (33) is threaded with a second fastening screw (36), one end of which is in contact with the second adjusting rod (34).

4. A dual-label head positioning labeling machine according to claim 3, characterized in that, The feeding mechanism (4) includes a mounting plate (41) fixedly connected to the side of the electric conveyor belt (1). A first servo motor (42) is mounted on the side of the mounting plate (41). A rotating disk (43) is fixedly connected to the output end of the first servo motor (42). A rubber ring (44) is fitted around the outer ring of the rotating disk (43).

5. A dual-label head positioning labeling machine according to claim 4, characterized in that, A set of baffles (2) and rotating disks (43) are provided with clearance grooves (21) at corresponding positions.

6. A dual-label head positioning labeling machine according to claim 5, characterized in that, The rotating assembly (5) includes a fixed platform (51) disposed on the side of the electric conveyor belt (1). A side plate (52) is fixedly connected to the top of the fixed platform (51). A hollow fixed box (53) is installed on the side of the side plate (52) near the electric conveyor belt (1). A rotating rod (54) is rotatably connected in the fixed box (53). A roller (55) is fixedly connected to the outer ring of the rotating rod (54).

7. A dual-label head positioning labeling machine according to claim 6, characterized in that, The top of the fixed box (53) is equipped with a second servo motor (56). The output end of the second servo motor (56) passes through the top of the fixed box (53) and is fixedly connected to a first synchronous pulley (57). The outer ring of the rotating rod (54) is fixedly connected to a second synchronous pulley (58). The first synchronous pulley (57) and the second synchronous pulley (58) are both located inside the fixed box (53). A synchronous belt (59) is fitted on the first synchronous pulley (57) and the second synchronous pulley (58).

8. A dual-label head positioning labeling machine according to claim 7, characterized in that, The positioning mechanism (6) includes an adjustment bracket (61) disposed on the side of the electric conveyor belt (1) away from the rotating component (5). A push rod motor (62) is mounted on the adjustment bracket (61). A synchronization plate (63) is fixedly connected to the output end of the push rod motor (62). Two sets of moving plates (64) are fixedly connected to the side of the synchronization plate (63) near the rotating component (5). Two sets of mounting plates (65) are fixedly connected to the sides of the two sets of moving plates (64). A positioning roller (66) is rotatably connected between the two sets of mounting plates (65).

9. A dual-label head positioning labeling machine according to claim 8, characterized in that, An inclined plate (71) is provided between the label output unit (7) and the roller (55).

10. A dual-label head positioning labeling machine according to claim 9, characterized in that, It includes two sets of photoelectric sensors (8) set above the electric conveyor belt (1), the two sets of photoelectric sensors (8) are respectively set in front of the two sets of rotating components (5), and the roller (55) is provided with an inclined photoelectric sensor (9) on the side away from the photoelectric sensor (8). It also includes a control box, and the electric conveyor belt (1), the first servo motor (42), the second servo motor (56) and the push rod motor (62) are all electrically connected to the control box.

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