An over-labelling secondary labelling apparatus

Abstract

The utility model discloses a kind of covering type label secondary pasting equipment, including basic label conveying mechanism and the covering label conveying mechanism that can be assembled with its use, the discharging structure of covering label conveying mechanism and the feeding structure of basic label conveying mechanism overlap, covering label conveying mechanism transports covering label to the direction of basic label conveying mechanism, and covering label body is stripped from backing paper at its discharging structure, after stripping, covering label body, paste on the corresponding position of basic label on the feeding structure of basic label conveying mechanism;The utility model passes through the modularization assembly design of basic label conveying mechanism and covering label conveying mechanism module, covering label conveying mechanism independently conveys covering label, solve the problem that a large amount of waste is generated after removing excess base material in existing processing, realize the effect that covering label processing does not need extra base material, no excess waste generation, reduce raw material waste from source, reduce waste recovery processing cost.

Description

Technical Field

[0001] This utility model relates to the field of label production, specifically a secondary label pasting device. Background Technology

[0002] In the label manufacturing and processing industry, there is a need for secondary pasting processing, which is often used in scenarios such as prize-winning labels. During processing, another cover label needs to be pasted on a specific area of ​​the base label (such as the prize-winning information display area). The prize-winning information of the base label is covered by the cover label, and the prize-winning status can be viewed later by peeling off the cover label. Existing label re-application equipment that meets the above requirements generally adopts a synchronous processing mode: the upper station of the equipment is responsible for processing the cover label, and the lower station is responsible for processing the base label. Through a preset alignment structure, the upper cover label and the lower base label are kept relatively aligned at the position to be pasted, thereby completing the application of the cover label to the base label. However, this processing mode has its drawbacks: during the production of the cover label at the upper station, in order to ensure that the cover label and the base label are aligned at the position to be pasted, a base material of the same size as the base label must be used for processing. After processing, excess base material needs to be removed, resulting in a large amount of waste. This waste cannot be reused, which not only causes serious waste of raw materials, but also requires additional investment in waste recycling, significantly increasing the overall production cost. Utility Model Content

[0003] The purpose of this invention is to provide a secondary label pasting device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A secondary label pasting device includes a base label conveying mechanism and a cover label conveying mechanism that can be assembled with it. The discharge structure of the cover label conveying mechanism overlaps with the feeding structure of the base label conveying mechanism. The cover label conveying mechanism conveys the cover label towards the base label conveying mechanism and peels the cover label body from the backing paper at its discharge structure. The peeled cover label body is pasted onto the corresponding position of the base label on the feeding structure of the base label conveying mechanism.

[0005] As a further embodiment of this utility model: the basic label conveying mechanism includes a fixed frame, a basic label feeding roller and a finished product winding roller disposed at both ends of its side wall, a feeding structure is provided between the basic label feeding roller and the finished product winding roller, at least two first transmission rollers are provided between the basic label feeding roller and the feeding structure, and a pressing structure is provided between the feeding structure and the finished product winding roller; the basic label feeding roller and the finished product winding roller are vertically mounted on the side wall of the fixed frame, and a first motor and a second motor are respectively fixedly connected to the basic label feeding roller and the finished product winding roller, and the first motor and the second motor are fixedly connected to the fixed frame.

[0006] As a further embodiment of this utility model: the feeding structure includes two conveying rollers rotatably connected to the side wall of the fixed frame. The two conveying rollers are arranged in parallel, and a feeding plate parallel to their top is provided between them. The feeding plate is fixedly connected to the fixed frame, and the other end of the conveying rollers and the feeding plate is installed on the first connecting plate. The position of the feeding structure is higher than the basic label feeding roller, and three first transmission rollers are arranged alternately between them. The first transmission rollers are rotatably connected to the side wall of the fixed frame.

[0007] As a further embodiment of this utility model: the pressing structure is positioned lower than the feeding structure and the finished product winding roller. The pressing structure includes an upper pressure roller, a lower pressure roller, a third motor, a fourth motor, a second transmission roller, and a second connecting plate. The upper pressure roller and the lower pressure roller are rotatably connected to the side wall of the fixed frame, and the upper pressure roller and the lower pressure roller are respectively fixedly connected to the third motor and the fourth motor. The third motor and the fourth motor are fixedly connected to the fixed frame. A second transmission roller is provided on the side of the lower pressure roller near the finished product winding roller. The second transmission roller is lower than the lower pressure roller and is rotatably connected to the fixed frame. The other ends of the upper pressure roller, the lower pressure roller, and the second transmission roller are mounted on the second connecting plate.

[0008] As a further embodiment of this utility model: the cover label conveying mechanism includes a height adjustment component, a position adjustment component, a mounting plate, and a cover label conveying component. The position adjustment component is mounted on the height adjustment component, the mounting plate is movably connected to the position adjustment component, and the cover label conveying component is mounted on the mounting plate.

[0009] As a further embodiment of this utility model: the label conveying mechanism also includes a mounting base at the bottom, and a height adjustment component is mounted on the mounting base. The height adjustment component includes a third connecting plate, a first lead screw, a first turntable, a first guide rod, and a moving plate. The third connecting plate is mounted above the mounting base. The first lead screw is rotatably connected between the mounting base and the third connecting plate, and the upper end of the first lead screw passes through the third connecting plate and is fixedly connected to the first turntable. A first guide rod is provided on both sides of the first lead screw, and the first guide rod is fixedly connected between the mounting base and the third connecting plate. The moving plate is mounted on the first lead screw and the first guide rod, and the moving plate is threadedly connected to the first lead screw and slidably connected to the first guide rod.

[0010] As a further embodiment of this utility model: the position adjustment assembly includes a fourth connecting plate, a second lead screw, a second turntable, and a second guide rod. One end of the second lead screw is vertically rotatably connected to the moving plate, and the other end passes through the fourth connecting plate and is rotatably connected to it. The end of the second lead screw is fixedly connected to the second turntable. The two sides of the second lead screw are provided with second guide rods opposite to each other, and the second guide rods are fixedly connected between the fourth connecting plate and the moving plate. The mounting plate is disposed on the second lead screw and the second guide rod, and the mounting plate is threadedly connected to the second lead screw and slidably connected to the second guide rod.

[0011] As a further embodiment of this utility model: a cover label conveying assembly is installed on the mounting plate. The cover label conveying assembly includes a cover label feeding roller and a waste material winding roller arranged vertically. A discharge structure is provided on one side of both. At least two third transmission rollers are provided between the cover label feeding roller and the discharge structure, and between the waste material winding roller and the discharge structure. The cover label feeding roller and the waste material winding roller are vertically arranged on the mounting plate, and the cover label feeding roller and the waste material winding roller are fixedly connected to the fifth motor and the sixth motor, respectively. The fifth motor and the sixth motor are fixedly connected to the mounting plate.

[0012] As a further embodiment of this utility model: the discharge structure includes a fixed plate and a discharge plate, the fixed plate is fixedly connected to the mounting plate, the discharge plate is fixedly connected to the fixed plate, and the discharge plate is inclined downward.

[0013] As a further embodiment of this utility model, the discharge structure also includes an auxiliary pasting component disposed on its upper part. The auxiliary pasting component includes a vertical plate, an adjusting rod, a mounting block, a brush, and fasteners. The vertical plate is fixedly connected to a fixed plate. The vertical plate has a mounting groove that runs through the width direction. An adjusting rod is movably connected in the mounting groove. The adjusting rod can move along the height direction of the mounting groove. One end of the adjusting rod extending out of the mounting groove has an external thread. The adjusting rod is fixed by a nut. A mounting block is sleeved on the adjusting rod. A brush is detachably connected to the bottom wall of the mounting block. The bottom of the brush can abut against the cover label. Fasteners are threadedly connected to the top wall of the mounting block. The lower end of the fastener can abut against the adjusting rod to fix the mounting block.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: A secondary label pasting device for overlay labels, through the modular assembly design of the basic label conveying mechanism and the overlay label conveying mechanism, allows the overlay label conveying mechanism to independently convey the overlay labels. This solves the problem in the existing synchronous processing mode where the overlay label needs to be processed using a substrate of the same size as the basic label, and the excess substrate needs to be removed after processing, resulting in a large amount of waste. This achieves the effect of overlay label processing without additional substrate and without the generation of excess waste, reducing raw material waste from the source and lowering waste recycling and processing costs. The height adjustment component and position adjustment component allow the overlay label conveying mechanism to be independently adjusted in position, enabling the overlay label to be quickly adjusted in position according to the area to be covered by the basic label, improving the accuracy of pasting alignment, adapting to the secondary pasting needs of basic labels of different sizes, and improving the versatility of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a secondary label-applying device.

[0016] Figure 2 This is a schematic diagram of the basic label conveying mechanism in a cover-type label secondary pasting device.

[0017] Figure 3 This is a schematic diagram of the basic label conveying mechanism in a cover-type label secondary pasting device from another angle.

[0018] Figure 4 This is a schematic diagram of the cover label conveying mechanism in a cover label secondary pasting device.

[0019] Figure 5 This is a schematic diagram of the label conveying mechanism in a secondary label application device from another angle.

[0020] Figure 6 This is an enlarged view of point A in a cover-type label re-application device.

[0021] In the diagram: 20, Cover Label 21, Backing Paper 22, Base Label 30, Base Label Feeding Roller 1, Finished Product Rewinding Roller 2, Feeding Structure 3, Conveying Roller 31, Feeding Plate 32, First Connecting Plate 33, First Drive Roller 4, Pressing Structure 5, Upper Pressure Roller 51, Lower Pressure Roller 52, Third Motor 53, Fourth Motor 54, Second Drive Roller 55, Second Connecting Plate 56, First Motor 6, Second Motor 7, Height Adjustment Assembly 8, Third Connecting Plate 81, First Lead Screw 82, First Turntable 83, First Guide Rod 84, Moving... Moving plate 85, position adjustment assembly 9, fourth connecting plate 91, second lead screw 92, second turntable 93, second guide rod 94, mounting plate 10, cover label conveying assembly 11, cover label feeding roller 111, waste material winding roller 112, discharge structure 113, fixing plate 1131, discharge plate 1132, upright plate 1133, adjusting rod 1134, mounting block 1135, brush 1136, fastener 1137, third transmission roller 114, fifth motor 115, sixth motor 116, mounting base 12, fixing frame 13. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-6 In this embodiment of the utility model, a secondary label pasting device includes a basic label conveying mechanism and a cover label conveying mechanism that can be assembled with it. The discharge structure 113 of the cover label conveying mechanism overlaps with the feeding structure 3 of the basic label conveying mechanism. The cover label conveying mechanism conveys the cover label 20 to the basic label conveying mechanism and peels the cover label body 21 from the backing paper 22 at its discharge structure 113. The peeled cover label body 21 is pasted on the corresponding position of the basic label 30 on the feeding structure 3 of the basic label conveying mechanism.

[0024] The basic label conveying mechanism includes a fixed frame 13, a basic label feeding roller 1 and a finished product winding roller 2 disposed at both ends of its side wall, a feeding structure 3 between the basic label feeding roller 1 and the finished product winding roller 2, at least two first transmission rollers 4 between the basic label feeding roller 1 and the feeding structure 3, and a pressing structure 5 between the feeding structure 3 and the finished product winding roller 2.

[0025] The basic label feeding roller 1 and the finished product winding roller 2 are vertically mounted on the side wall of the fixed frame 13, and the basic label feeding roller 1 and the finished product winding roller 2 are respectively fixedly connected to the first motor 6 and the second motor 7 (not shown in the figure). The first motor 6 and the second motor 7 are fixedly connected to the fixed frame 13.

[0026] The feeding structure 3 includes two conveying rollers 31 rotatably connected to the side wall of the fixed frame 13. The two conveying rollers 31 are arranged in parallel, and a feeding plate 32 parallel to their top is provided between them. The feeding plate 32 is fixedly connected to the fixed frame 13. The other end of the conveying rollers 31 and the feeding plate 32 is installed on the first connecting plate 33.

[0027] The feeding structure 3 is positioned higher than the basic label feeding roller 1, and three first transmission rollers 4 are staggered between the two. The first transmission rollers 4 are rotatably connected to the side wall of the fixed frame 13.

[0028] The pressing structure 5 is positioned lower than the feeding structure 3 and the finished winding roller 2. The pressing structure 5 includes an upper pressure roller 51, a lower pressure roller 52, a third motor 53, a fourth motor 54, a second transmission roller 55, and a second connecting plate 56. The upper pressure roller 51 and the lower pressure roller 52 are rotatably connected to the side wall of the fixed frame 13, and the upper pressure roller 51 and the lower pressure roller 52 are respectively fixedly connected to the third motor 53 and the fourth motor 54 (not shown in the figure). The third motor 53 and the fourth motor 54 are fixedly connected to the fixed frame 13. A second transmission roller 55 is provided on the side of the lower pressure roller 52 that is close to the finished winding roller 2. The second transmission roller 55 is lower than the lower pressure roller 52 and is rotatably connected to the fixed frame 13. The other ends of the upper pressure roller 51, the lower pressure roller 52, and the second transmission roller 55 are installed on the second connecting plate 56.

[0029] During installation, the basic label material roll is mounted on the basic label unloading roller 1. The end of the basic label is pulled around the three first drive rollers 4 in sequence, extending to be in contact with the upper part of the loading plate 32 of the loading structure 3, then passing between the upper pressure roller 51 and the lower pressure roller 52, and after being guided by the second drive roller 55, it finally winds onto the finished product winding roller 2. During operation, each motor is started, and the basic label conveying mechanism drives the basic label to be conveyed towards the finished product winding roller 2.

[0030] The cover label conveying mechanism includes a height adjustment component 8, a position adjustment component 9, a mounting plate 10, and a cover label conveying component 11. The position adjustment component 9 is mounted on the height adjustment component 8, the mounting plate 10 is movably connected to the position adjustment component 9, and the cover label conveying component 11 is mounted on the mounting plate 10.

[0031] The height of the cover label conveying component 11 can be adjusted by the height adjustment component 8, so that the discharge structure on the cover label conveying component 11 can overlap with the feeding structure 3 on the basic label conveying mechanism. The position adjustment component 9 can adjust the position of the cover label conveying component 11 in the width direction of the equipment, so that the cover label corresponds to the position of the basic label to be covered.

[0032] The label conveying mechanism also includes a mounting base 12 at the bottom, and a height adjustment component 8 is mounted on the mounting base 12. The height adjustment component 8 includes a third connecting plate 81, a first lead screw 82, a first turntable 83, a first guide rod 84, and a moving plate 85. The third connecting plate 81 is mounted above the mounting base 12. The first lead screw 82 is rotatably connected between the mounting base 12 and the third connecting plate 81, and the upper end of the first lead screw 82 passes through the third connecting plate 81 and is fixedly connected to the first turntable 83. A first guide rod 84 is provided on both sides of the first lead screw 82, and the first guide rod 84 is fixedly connected between the mounting base 12 and the third connecting plate 81. The moving plate 85 is mounted on the first lead screw 82 and the first guide rod 84, and the moving plate 85 is threadedly connected to the first lead screw 82 and slidably connected to the first guide rod 84.

[0033] The position adjustment assembly 9 includes a fourth connecting plate 91, a second lead screw 92, a second turntable 93, and a second guide rod 94. One end of the second lead screw 92 is vertically rotatably connected to the moving plate 85, and the other end passes through the fourth connecting plate 91 and is rotatably connected to it. The second turntable 93 is fixedly connected to the end of the second lead screw 92. The second guide rod 94 is provided on both sides of the second lead screw 92, and the second guide rod 94 is fixedly connected between the fourth connecting plate 91 and the moving plate 85.

[0034] Mounting plate 10 is mounted on the second lead screw 92 and the second guide rod 94. Mounting plate 10 is threadedly connected to the second lead screw 92 and slidably connected to the second guide rod 94.

[0035] The mounting plate 10 is equipped with a cover label conveying assembly 11. The cover label conveying assembly 11 includes a cover label feeding roller 111 and a waste material winding roller 112 arranged vertically. A discharge structure 113 is provided on one side of both. At least two third drive rollers 114 are provided between the cover label feeding roller 111 and the discharge structure 113, and between the waste material winding roller 112 and the discharge structure 113.

[0036] The label feeding roller 111 and the waste material winding roller 112 are vertically arranged on the mounting plate 10, and the label feeding roller 111 and the waste material winding roller 112 are respectively fixedly connected to the fifth motor 115 and the sixth motor 116 (not shown in the figure). The fifth motor 115 and the sixth motor 116 are fixedly connected to the mounting plate 10.

[0037] The discharge structure 113 includes a fixed plate 1131 and a discharge plate 1132. The fixed plate 1131 is fixedly connected to the mounting plate 10, and the discharge plate 1132 is fixedly connected to the fixed plate 1131. The discharge plate 1132 is inclined downward.

[0038] The discharge structure 113 also includes an auxiliary pasting component located on its upper part. The auxiliary pasting component includes a vertical plate 1133, an adjusting rod 1134, a mounting block 1135, a brush 1136, and a fastener 1137. The vertical plate 1133 is fixedly connected to the fixed plate 1131. The vertical plate 1133 has a through mounting groove extending along the width direction. The adjusting rod 1134 is movably connected in the mounting groove. The adjusting rod 1134 can move along the height direction of the mounting groove. The end of the adjusting rod 1134 extending out of the mounting groove has an external thread. The adjusting rod 1134 is fixed by a nut. The mounting block 1135 is sleeved on the adjusting rod 1134. The brush 1136 is detachably connected to the bottom wall of the mounting block 1135. The bottom of the brush 1136 can abut against the cover label. The fastener 1137 is threadedly connected to the top wall of the mounting block 1135. The lower end of the fastener 1137 can abut against the adjusting rod 1134 to fix the mounting block 1135. During use, the contact pressure between the brush 1136 and the cover label body 21 can be adjusted by adjusting the lever 1134 to ensure that the cover label body 21 and the base label 30 are tightly attached, thereby improving the adhesion.

[0039] During installation, the cover label material roll is mounted on the cover label feeding roller 111. The end of the cover label 20 is guided by multiple third drive rollers 114 and laid along the upper surface of the discharge plate 1132. After reaching the tail end of the discharge plate 1132, it winds around to its underside. At this time, the cover label body 21 is peeled off, and the remaining backing paper 22 is wound onto the waste material take-up roller 112 via the guide wires of the multiple third drive rollers 114 below. During operation, the fifth motor 115 and the sixth motor 116 are started to drive the cover label 20 to be conveyed towards the feeding structure 3 of the base label conveying mechanism. Since the tail end of the discharge structure 113 of the cover label conveying mechanism overlaps with the upper surface of the feeding structure 3 of the cover label conveying mechanism, and the vertical distance between the lower surface of the tail end of the discharge plate 1132 and the upper surface of the feeding plate 32 is controlled at 0.5-1mm, the peeled cover label body 21 will successively cover the corresponding position of the base label 30 below, and then be pressed and wound by the pressing structure 5.

[0040] The working principle of this utility model is as follows: First, the basic label material roll and the cover label material roll are respectively installed on the basic label conveying mechanism and the cover label conveying mechanism. Then, the cover label conveying mechanism is moved to the basic label conveying mechanism. By adjusting the height adjustment component 8 and the position adjustment component 9, the tail end of the discharge plate 1132 of the discharge structure 113 of the cover label conveying mechanism is made to adhere to the upper surface of the feeding structure 3 of the cover label conveying mechanism. At the same time, the auxiliary pasting component is adjusted to ensure that the brush 1136 can apply appropriate contact pressure to the cover label body 21. Then, each motor is started. Under the coordinated action of each transmission roller and the take-up roller, the basic label 30 is stably conveyed along the feeding plate 32 towards the finished product take-up roller 2, and the cover label 20 is conveyed along the discharge plate 1132 towards the basic label. The backing paper 22 is simultaneously recycled by the waste take-up roller 112. When the cover label 20 is conveyed to the end of the discharge plate 1132, the cover label body 21 and the backing paper 22 are completely separated. The peeled cover label body 21 is directly attached to the corresponding position of the base label 30 that is continuously conveyed below. At this time, the brush 1136 of the auxiliary pasting component applies uniform pressure to the surface of the cover label body 21 to ensure that the cover label body 21 and the base label 30 are tightly attached. The base label that has been covered continues to move along the conveying path and is further compacted by the squeezing action of the upper pressure roller 51 and the lower pressure roller 52. Then it is guided by the second drive roller 55 and finally wound and wound by the finished product winding roller 2. At the same time, the backing paper 22 of the cover label is continuously recycled by the waste winding roller 112. The whole process continues until the base label material roll and the cover label material roll are consumed, and the motors are turned off to complete one working cycle.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A secondary label pasting device, characterized in that, It includes a basic label conveying mechanism and a cover label conveying mechanism that can be assembled with it. The discharge structure (113) of the cover label conveying mechanism overlaps with the feeding structure (3) of the basic label conveying mechanism. The cover label conveying mechanism conveys the cover label (20) to the basic label conveying mechanism and peels the cover label body (21) from the backing paper (22) at its discharge structure (113). The peeled cover label body (21) is pasted on the corresponding position of the basic label (30) on the feeding structure (3) of the basic label conveying mechanism.

2. The overlay label secondary pasting device according to claim 1, characterized in that, The basic label conveying mechanism includes a fixed frame (13), a basic label feeding roller (1) and a finished product winding roller (2) set at both ends of its side wall. A feeding structure (3) is provided between the basic label feeding roller (1) and the finished product winding roller (2). At least two first transmission rollers (4) are provided between the basic label feeding roller (1) and the feeding structure (3). A pressing structure (5) is provided between the feeding structure (3) and the finished product winding roller (2). The basic label feeding roller (1) and the finished product winding roller (2) are vertically installed on the side wall of the fixed frame (13), and the basic label feeding roller (1) and the finished product winding roller (2) are respectively fixedly connected to a first motor (6) and a second motor (7). The first motor (6) and the second motor (7) are fixedly connected to the fixed frame (13).

3. The overlay label secondary pasting device according to claim 2, characterized in that, The feeding structure (3) includes two conveying rollers (31) rotatably connected to the side wall of the fixed frame (13). The two conveying rollers (31) are arranged in parallel, and a feeding plate (32) parallel to their top is provided between them. The feeding plate (32) is fixedly connected to the fixed frame (13). The other end of the conveying rollers (31) and the feeding plate (32) is installed on the first connecting plate (33). The feeding structure (3) is positioned higher than the basic label feeding roller (1). Three first transmission rollers (4) are arranged alternately between the two. The first transmission rollers (4) are rotatably connected to the side wall of the fixed frame (13).

4. The overlay label secondary pasting device according to claim 3, characterized in that, The pressing structure (5) is positioned lower than the feeding structure (3) and the finished product winding roller (2). The pressing structure (5) includes an upper pressure roller (51), a lower pressure roller (52), a third motor (53), a fourth motor (54), a second transmission roller (55), and a second connecting plate (56). The upper pressure roller (51) and the lower pressure roller (52) are rotatably connected to the side wall of the fixed frame (13) and are respectively fixedly connected to the third motor (53) and the fourth motor (54). The third motor (53) and the fourth motor (54) are fixedly connected to the fixed frame (13). A second transmission roller (55) is provided on the side of the lower pressure roller (52) close to the finished product winding roller (2). The second transmission roller (55) is lower than the lower pressure roller (52) and is rotatably connected to the fixed frame (13). The other ends of the upper pressure roller (51), the lower pressure roller (52), and the second transmission roller (55) are installed on the second connecting plate (56).

5. The overlay label secondary pasting device according to claim 1, characterized in that, The cover label conveying mechanism includes a height adjustment component (8), a position adjustment component (9), a mounting plate (10), and a cover label conveying component (11). The position adjustment component (9) is mounted on the height adjustment component (8), the mounting plate (10) is movably connected to the position adjustment component (9), and the cover label conveying component (11) is mounted on the mounting plate (10).

6. The overlay label secondary pasting device according to claim 5, characterized in that, The label conveying mechanism also includes a mounting base (12) at the bottom, and a height adjustment assembly (8) on the mounting base (12). The height adjustment assembly (8) includes a third connecting plate (81), a first lead screw (82), a first turntable (83), a first guide rod (84), and a moving plate (85). The third connecting plate (81) is positioned above the mounting base (12), and the first lead screw (82) is rotatably connected between the mounting base (12) and the third connecting plate (81). The upper end of the first lead screw (82) passes through the third connecting plate (81) and is fixedly connected to the first turntable (83). A first guide rod (84) is provided on both sides of the first lead screw (82). The first guide rod (84) is fixedly connected between the mounting base (12) and the third connecting plate (81). A movable plate (85) is provided on the first lead screw (82) and the first guide rod (84). The movable plate (85) is threadedly connected to the first lead screw (82) and slidably connected to the first guide rod (84).

7. The overlay label secondary pasting device according to claim 6, characterized in that, The position adjustment assembly (9) includes a fourth connecting plate (91), a second lead screw (92), a second turntable (93), and a second guide rod (94). One end of the second lead screw (92) is vertically rotatably connected to the moving plate (85), and the other end passes through the fourth connecting plate (91) and is rotatably connected to it. The second turntable (93) is fixedly connected to the end of the second lead screw (92). The second guide rod (94) is provided on both sides of the second lead screw (92) and is fixedly connected between the fourth connecting plate (91) and the moving plate (85). The mounting plate (10) is set on the second lead screw (92) and the second guide rod (94). The mounting plate (10) is threadedly connected to the second lead screw (92) and slidably connected to the second guide rod (94).

8. The overlay label secondary pasting device according to claim 7, characterized in that, A cover label conveying assembly (11) is installed on the mounting plate (10). The cover label conveying assembly (11) includes a cover label feeding roller (111) and a waste material winding roller (112) arranged vertically. A discharge structure (113) is provided on one side of both. At least two third transmission rollers (114) are provided between the cover label feeding roller (111) and the discharge structure (113) and between the waste material winding roller (112) and the discharge structure (113). The cover label feeding roller (111) and the waste material winding roller (112) are vertically arranged on the mounting plate (10). The cover label feeding roller (111) and the waste material winding roller (112) are fixedly connected to the fifth motor (115) and the sixth motor (116) respectively. The fifth motor (115) and the sixth motor (116) are fixedly connected to the mounting plate (10).

9. A secondary label pasting device according to claim 8, characterized in that, The discharge structure (113) includes a fixed plate (1131) and a discharge plate (1132). The fixed plate (1131) is fixedly connected to the mounting plate (10), and the discharge plate (1132) is fixedly connected to the fixed plate (1131). The discharge plate (1132) is inclined downward.

10. A secondary label pasting device according to claim 9, characterized in that, The discharge structure (113) also includes an auxiliary pasting component disposed on its upper part. The auxiliary pasting component includes a vertical plate (1133), an adjusting rod (1134), a mounting block (1135), a brush (1136), and fasteners (1137). The vertical plate (1133) is fixedly connected to the fixed plate (1131). The vertical plate (1133) has a mounting groove that extends through the width direction. An adjusting rod (1134) is movably connected in the mounting groove. The adjusting rod (1134) can move along the height direction of the mounting groove. 134) One end extending from the mounting groove is provided with an external thread. The adjusting rod (1134) is fixed by a nut. The adjusting rod (1134) is fitted with a mounting block (1135). A brush (1136) is detachably connected to the bottom wall of the mounting block (1135). The bottom of the brush (1136) can abut against the cover label. A fastener (1137) is threadedly connected to the top wall of the mounting block (1135). The lower end of the fastener (1137) can abut against the adjusting rod (1134) to fix the mounting block (1135).

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