Clamping positioning mechanism and labeling machine

The clamping and positioning mechanism with a vertical structure layout solves the problems of large space occupation and poor positioning effect of traditional clamping mechanisms, and realizes flexible positioning and efficient labeling of different products.

CN223574905UActive Publication Date: 2025-11-21GUANGZHOU SHELL CONNING MECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202423314941.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-11-21
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Traditional clamping mechanisms are complex in structure, occupy a large amount of lateral space, have poor positioning effect, cannot adapt to different product sizes, and have strong application limitations.

Method used

The clamping and positioning mechanism with a vertical structure includes a loading block, a cantilever plate, a spacing adjustment mechanism, and first and second clamping components. Through the coordination of spacing adjustment and clamping components, it can achieve flexible positioning of products of different shapes and sizes.

Benefits of technology

It effectively reduces the lateral space occupied, ensures labeling quality, adapts to the clamping needs of products of different shapes and sizes, and expands the scope of application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a clamping positioning mechanism and a labeling machine, which comprises a loading block, a first cantilever plate, a spacing adjusting mechanism, a second cantilever plate, a first clamping assembly and a second clamping assembly. The first cantilever plate is arranged on the loading block. The spacing adjusting mechanism is arranged on the first cantilever plate. The second cantilever plate is connected with the spacing adjusting mechanism, and the second cantilever plate and the first cantilever plate are arranged in parallel and spaced apart in the vertical direction. The first clamping assembly is arranged on the first cantilever plate. The second clamping assembly is arranged on the second cantilever plate and is arranged opposite to the first clamping assembly. The second clamping assembly and the first clamping assembly can be matched to clamp and position or release a product to be labeled. The second cantilever plate and the first cantilever plate are close to or away from each other, so that the spacing between the first clamping assembly and the second clamping assembly is adjusted, the purpose of meeting the clamping needs of products with different shapes and sizes is achieved, and the application range of the clamping positioning mechanism is greatly improved.
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Description

Technical Field

[0001] This application relates to the technical field of labeling equipment, and in particular to a clamping and positioning mechanism and a labeling machine. Background Technology

[0002] A labeling machine is a device that affixes rolls of paper or foil labels to designated packaging containers or products. It uses sensors to signal that the material is ready for labeling, driving wheels to rotate and peel the label from the roll and attach it to the designated position. Labeling machines typically have a peeling mechanism that can automatically peel off labels and complete labeling operations on flat surfaces, cylindrical surfaces, recessed areas, and corners. In practice, the shapes of products to be labeled vary widely, including regular or irregular structures such as circles, squares, and triangles. Effective positioning of the product during labeling significantly impacts the labeling quality.

[0003] In labeling machines, the component used for product positioning is the clamping mechanism. Traditional clamping mechanisms have complex structures, occupy a large lateral space, provide poor product positioning, and cannot adapt to different product sizes, thus limiting their application. Utility Model Content

[0004] Therefore, it is necessary to provide a solution to address the problems of complex structure, large lateral space occupation, and poor positioning effect and capability.

[0005] A first aspect of this application provides a clamping and positioning mechanism, comprising:

[0006] Loading blocks;

[0007] The first cantilever plate is mounted on the loading block;

[0008] A spacing adjustment mechanism is mounted on the first cantilever plate;

[0009] The second cantilever plate is connected to the spacing adjustment mechanism, and the second cantilever plate and the first cantilever plate are arranged side by side at a distance in the vertical direction.

[0010] A first clamping assembly, wherein the first clamping assembly is disposed on the first cantilever plate; and

[0011] The second clamping assembly is disposed on the second cantilever plate and is arranged opposite to the first clamping assembly. The second clamping assembly and the first clamping assembly can cooperate to clamp and position or release the product to be labeled.

[0012] In this clamping and positioning mechanism, the loading block, first cantilever plate, spacing adjustment mechanism, second cantilever plate, first clamping assembly, and second clamping assembly are all arranged vertically. This makes full use of the space in the vertical direction, effectively reduces the occupation of horizontal space, saves space, and is conducive to the miniaturization design of the labeling machine. During operation, when the product to be labeled is transported to the labeling station by the positioning turntable, the control device immediately outputs instructions to the first clamping assembly and the second clamping assembly. The first clamping assembly and the second clamping assembly then clamp and position the product to be labeled, ensuring that the product position will not be loose or skewed during the labeling operation, thus ensuring the labeling quality. In addition, for products with different shapes and sizes, the spacing adjustment mechanism can be flexibly adjusted to bring the second cantilever plate closer to or further away from the first cantilever plate, thereby adjusting the spacing between the first clamping assembly and the second clamping assembly, achieving the purpose of meeting the clamping needs of products with different shapes and sizes, and greatly improving the applicability of the clamping and positioning mechanism.

[0013] The technical solution of this application will be further described below:

[0014] In one embodiment, the first clamping assembly includes a first support plate, a first clamping drive member, and a first clamping block. The first support plate is connected to the first cantilever plate, the first clamping drive member is disposed on the first support plate, and the telescopic shaft of the first clamping drive member is vertically arranged. The first clamping block is connected to the telescopic shaft of the first clamping drive member.

[0015] In one embodiment, the first clamping assembly further includes a first mounting member, the first support plate has a first through hole, the first cantilever plate has a first elongated slot that aligns with the first through hole, and the first mounting member passes through the first through hole and is movably mounted in the first elongated slot.

[0016] In one embodiment, the first clamping block has a first connecting portion and a first clamping portion disposed opposite to each other, and the width of the first clamping block gradually decreases along the direction from the first connecting portion to the first clamping portion.

[0017] In one embodiment, the second clamping assembly includes a second support plate, a second clamping drive member, and a second clamping block. The second support plate is connected to the second cantilever plate, the second clamping drive member is disposed on the second support plate, and the telescopic shaft of the second clamping drive member is vertically arranged. The second clamping block is connected to the telescopic shaft of the second clamping drive member.

[0018] In one embodiment, the second clamping assembly further includes a second mounting member, the second support plate has a second through hole, the second cantilever plate has a second elongated slot that aligns with the second through hole, and the second mounting member passes through the second through hole and is movably mounted in the second elongated slot.

[0019] In one embodiment, the second clamping block has a second connecting portion and a second clamping portion disposed opposite to each other, and the width of the second clamping block gradually decreases along the direction from the second connecting portion to the second clamping portion;

[0020] The first clamping part and / or the second clamping part are recessed to form a clamping groove, and the sidewall of the clamping groove is provided with a magnetic attractor.

[0021] In one embodiment, the spacing adjustment mechanism includes a first adjustment block, a second adjustment block, an adjustment carrier plate, an adjustment screw, and a guide column. The first adjustment block is disposed on the first cantilever plate, the second adjustment block is disposed on the second cantilever plate, one end of the guide column is fixed to the first adjustment block, and the other end of the guide column slidably passes through the second adjustment block and the second cantilever plate and is connected to the adjustment carrier plate. The adjustment screw is screwed onto the adjustment carrier plate, and one end of the adjustment screw is connected to the second cantilever plate.

[0022] In one embodiment, the spacing adjustment mechanism further includes a handwheel disposed at one end of the adjusting screw extending from the adjusting carrier plate.

[0023] A second aspect of this application also provides a labeling machine that includes the clamping and positioning mechanism described above. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the clamping and positioning mechanism according to an embodiment of this application.

[0027] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Clamping and positioning mechanism; 10. Loading block; 20. First cantilever plate; 30. Spacing adjustment mechanism; 31. First adjusting block; 32. Second adjusting block; 33. Adjusting carrier plate; 34. Adjusting screw; 35. Guide column; 36. Handwheel; 40. Second cantilever plate; 50. First clamping assembly; 51. First support plate; 511. First through hole; 52. First clamping drive; 53. First clamping block; 531. First connecting part; 532. First clamping part; 54. First mounting part; 60. Second clamping assembly; 61. Second support plate; 611. Second through hole; 62. Second clamping drive; 63. Second clamping block; 631. Second connecting part; 632. Second clamping part; 64. Second mounting part. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0036] See Figure 1 The present application illustrates a clamping and positioning mechanism 100, which includes a loading block 10, a first cantilever plate 20, a spacing adjustment mechanism 30, a second cantilever plate 40, a first clamping assembly 50, and a second clamping assembly 60.

[0037] The first cantilever plate 20 is mounted on the loading block 10; the spacing adjustment mechanism 30 is mounted on the first cantilever plate 20; the second cantilever plate 40 is connected to the spacing adjustment mechanism 30, and the second cantilever plate 40 and the first cantilever plate 20 are arranged side by side at intervals in the vertical direction; the first clamping assembly 50 is disposed on the first cantilever plate 20; the second clamping assembly 60 is disposed on the second cantilever plate 40 and is arranged opposite to the first clamping assembly 50, and the second clamping assembly 60 and the first clamping assembly 50 can cooperate to clamp, position or release the product to be labeled.

[0038] For example, the clamping and positioning mechanism 100 in this application is used in a labeling machine to position lipsticks during operation. The lipstick has a cylindrical shape, and the label needs to be pasted on the bottom circular surface of the lipstick. Therefore, when the clamping and positioning mechanism 100 is working, it specifically clamps the circumferential arc surface of the lipstick using the first clamping component 50 and the second clamping component 60 to achieve the clamping and positioning of the lipstick.

[0039] The loading block 10 is used to assemble with the entire machine base of the labeling machine to achieve the installation and fixation of the clamping and positioning mechanism 100.

[0040] The connection method between the loading block 10 and the whole machine base can be, but is not limited to, at least one of the following: screw connection, snap connection, welding, bonding, magnetic connection, etc. The specific method can be flexibly selected according to actual needs.

[0041] In summary, implementing the technical solution of this embodiment will achieve the following beneficial effects: In the clamping and positioning mechanism 100 of this solution, the loading block 10, the first cantilever plate 20, the spacing adjustment mechanism 30, the second cantilever plate 40, the first clamping assembly 50, and the second clamping assembly 60 are all arranged in a vertical structure, which can make full use of the space in the height direction, effectively reduce the occupation of the horizontal space, save the site area, and is conducive to the miniaturization design of the labeling machine; during operation, when the labeling product is transported to the labeling station through the positioning turntable, the control device immediately adjusts the first clamping assembly 50 and the second clamping assembly 60. When component 60 outputs a command, the first clamping component 50 and the second clamping component 60 immediately clamp and position the product to be labeled, ensuring that the product position will not loosen or deviate during the labeling operation and ensuring the labeling quality. In addition, for products with different shapes and sizes, the spacing adjustment mechanism 30 can be flexibly adjusted to make the second cantilever plate 40 and the first cantilever plate 20 move closer or further apart, thereby adjusting the spacing between the first clamping component 50 and the second clamping component 60, so as to meet the clamping needs of products with different shapes and sizes and greatly improve the applicability of the clamping and positioning mechanism 100.

[0042] Please continue reading. Figure 1 In one embodiment, the first clamping assembly 50 includes a first support plate 51, a first clamping drive member 52, and a first clamping block 53. The first support plate 51 is connected to the first cantilever plate 20. The first clamping drive member 52 is disposed on the first support plate 51, and the telescopic shaft of the first clamping drive member 52 is vertically arranged. The first clamping block 53 is connected to the telescopic shaft of the first clamping drive member 52.

[0043] As is easily understood, the first support plate 51 is used to assemble and fix the first clamping drive member 52 and the first cantilever plate 20, and to maintain the vertical installation posture of the first clamping drive member 52. When working, the telescopic shaft of the first clamping drive member 52 drives the first clamping block 53 to extend toward the second clamping assembly 60, so that it can cooperate with the second clamping assembly 60 to clamp the lipstick and achieve lipstick positioning.

[0044] Optionally, the first clamping drive 52 may be, but is not limited to, any one of a cylinder, an electric actuator, etc.

[0045] To better adapt to products with different shapes and sizes to be labeled, and to select the most suitable clamping position to ensure the clamping applicability and clamping positioning effect of various products to be labeled, the first clamping assembly 50 also includes a first mounting member 54. The first support plate 51 has a first through hole 511, and the first cantilever plate 20 has a first elongated slot that aligns with the first through hole 511. The first mounting member 54 passes through the first through hole 511 and is movably mounted in the first elongated slot.

[0046] Optionally, the first mounting component 54 is a bolt assembly. This allows for easy assembly and disassembly, and provides a high connection strength.

[0047] Please continue reading. Figure 1 and Figure 2 Furthermore, the first clamping block 53 has a first connecting portion 531 and a first clamping portion 532 disposed opposite to each other, and the width of the first clamping block 53 gradually decreases along the direction from the first connecting portion 531 to the first clamping portion 532.

[0048] The first connecting part 531 is used to connect with the telescopic shaft of the first clamping drive 52, and the first clamping part 532 is used to clamp the lipstick. The first clamping block 53 adopts a design with decreasing width, which on the one hand ensures that the first clamping block 53 has sufficient strength and improves durability and reliability; on the other hand, the inclined surfaces formed on both sides also form a guiding effect. When the first clamping block 53 extends, the inclined surfaces can slide and cooperate with the guide holes on the machine base, improving the moving accuracy of the first clamping block 53 and forming lateral support for the first clamping block 53, thereby improving the rigidity of the first clamping block 53.

[0049] Similarly, to reduce design and manufacturing difficulty and cost, the second clamping assembly 60 adopts the same structural design as the first clamping assembly 50. Specifically, in one embodiment, the second clamping assembly 60 includes a second support plate 61, a second clamping drive member 62, and a second clamping block 63. The second support plate 61 is connected to the second cantilever plate 40, the second clamping drive member 62 is disposed on the second support plate 61, and the telescopic shaft of the second clamping drive member 62 is vertically arranged. The second clamping block 63 is connected to the telescopic shaft of the second clamping drive member 62.

[0050] As is easily understood, the second support plate 61 is used to assemble and fix the second clamping drive member 62 and the second cantilever plate 40, and to maintain the vertical installation posture of the second clamping drive member 62. During operation, the telescopic shaft of the second clamping drive member 62 drives the second clamping block 63 to extend toward the first clamping assembly 50, so that it can cooperate with the first clamping part 532 to clamp the lipstick and achieve lipstick positioning.

[0051] Optionally, the second clamping drive 62 may be, but is not limited to, any one of a cylinder, an electric actuator, etc.

[0052] Please continue reading. Figure 1 In order to better adapt to products with different shapes and sizes to be labeled, and to select the most suitable clamping part to ensure the clamping applicability and clamping positioning effect of various products to be labeled, the second clamping assembly 60 further includes a second mounting member 64. The second support plate 61 has a second through hole 611, and the second cantilever plate 40 has a second elongated slot that aligns with the second through hole 611. The second mounting member 64 passes through the second through hole 611 and is movably mounted in the second elongated slot.

[0053] Optionally, the second mounting component 64 is a bolt assembly. This allows for easy assembly and disassembly, and provides a high connection strength.

[0054] Please continue reading. Figure 1 and Figure 2 In one embodiment, the second clamping block 63 has a second connecting portion 631 and a second clamping portion 632 disposed opposite to each other, and the width of the second clamping block 63 gradually decreases along the direction from the second connecting portion 631 to the second clamping portion 632.

[0055] The second connecting part 631 is used to connect with the telescopic shaft of the second clamping drive 62, and the second clamping part 632 is used to clamp the lipstick. The second clamping block 63 adopts a design with decreasing width, which on the one hand ensures that the second clamping block 63 has sufficient strength and improves durability and reliability; on the other hand, the inclined surfaces formed on both sides also form a guiding effect. When the second clamping block 63 extends, the inclined surfaces can slide and cooperate with the guide holes on the machine base, improving the moving accuracy of the second clamping block 63 and providing lateral support for the second clamping block 63, thereby improving the rigidity of the second clamping block 63.

[0056] The first clamping part 532 and / or the second clamping part 632 are recessed with clamping grooves, and magnetic elements are provided on the sidewalls of the clamping grooves. The clamping grooves are formed to increase the clamping area with the circumferential surface of the lipstick, thereby improving the reliability of the lipstick's clamping and positioning.

[0057] For spray cans with metal outer shells awaiting labeling, the magnetic force added to the clamping groove can apply magnetic attraction to the product. The magnetic attraction and clamping force are superimposed to significantly increase the clamping firmness of the product.

[0058] Please continue reading. Figure 1 Furthermore, based on any of the above embodiments, the spacing adjustment mechanism 30 includes a first adjustment block 31, a second adjustment block 32, an adjustment carrier plate 33, an adjustment screw 34, and a guide column 35. The first adjustment block 31 is disposed on the first cantilever plate 20, the second adjustment block 32 is disposed on the second cantilever plate 40, one end of the guide column 35 is fixed to the first adjustment block 31, and the other end of the guide column 35 slidably passes through the second adjustment block 32 and the second cantilever plate 40 and is connected to the adjustment carrier plate 33. The adjustment screw 34 is screwed onto the adjustment carrier plate 33 and one end of the adjustment screw 34 is connected to the second cantilever plate 40.

[0059] As is easily understood, the first adjusting block 31 and the second adjusting block 32 are used to assemble and fix the spacing adjustment mechanism 30 with the first cantilever plate 20 and the second cantilever plate 40, and at the same time, to form a stroke installation and positioning for the guide column 35. When it is necessary to increase or decrease the spacing between the first clamping assembly 50 and the second clamping assembly 60, it is only necessary to simply turn the adjusting screw 34. The adjusting screw 34 moves up and down in the threaded hole of the adjusting carrier plate 33, which can drive the first cantilever plate 20 to slide along the guide column 35, thereby moving closer to or away from the second clamping assembly 60. The adjustment method is simple, the adjustment efficiency is high, and the implementation is strong.

[0060] Furthermore, the spacing adjustment mechanism 30 also includes a handwheel 36, which is located at the end of the adjusting screw 34 that extends out of the adjusting carrier plate 33. The added handwheel 36 improves the convenience and effectiveness of rotating the adjusting screw 34, eliminating the need for auxiliary tools.

[0061] In addition to the above, this application also provides a labeling machine, which includes the clamping and positioning mechanism 100 as described in any of the above embodiments.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A clamping and positioning mechanism, characterized in that, include: Loading blocks; The first cantilever plate is mounted on the loading block; A spacing adjustment mechanism is mounted on the first cantilever plate; The second cantilever plate is connected to the spacing adjustment mechanism, and the second cantilever plate and the first cantilever plate are arranged side by side at a distance in the vertical direction. A first clamping assembly, wherein the first clamping assembly is disposed on the first cantilever plate; and The second clamping assembly is disposed on the second cantilever plate and is arranged opposite to the first clamping assembly. The second clamping assembly and the first clamping assembly can cooperate to clamp and position or release the product to be labeled.

2. The clamping and positioning mechanism according to claim 1, characterized in that, The first clamping assembly includes a first support plate, a first clamping drive, and a first clamping block. The first support plate is connected to the first cantilever plate. The first clamping drive is disposed on the first support plate, and the telescopic shaft of the first clamping drive is vertically arranged. The first clamping block is connected to the telescopic shaft of the first clamping drive.

3. The clamping and positioning mechanism according to claim 2, characterized in that, The first clamping assembly further includes a first mounting member, the first support plate has a first through hole, the first cantilever plate has a first elongated slot that aligns with the first through hole, and the first mounting member passes through the first through hole and is movably mounted in the first elongated slot.

4. The clamping and positioning mechanism according to claim 2, characterized in that, The first clamping block has a first connecting portion and a first clamping portion disposed opposite to each other, and the width of the first clamping block gradually decreases along the direction from the first connecting portion to the first clamping portion.

5. The clamping and positioning mechanism according to claim 4, characterized in that, The second clamping assembly includes a second support plate, a second clamping drive member, and a second clamping block. The second support plate is connected to the second cantilever plate. The second clamping drive member is disposed on the second support plate, and the telescopic shaft of the second clamping drive member is vertically arranged. The second clamping block is connected to the telescopic shaft of the second clamping drive member.

6. The clamping and positioning mechanism according to claim 5, characterized in that, The second clamping assembly further includes a second mounting member, the second support plate having a second through hole, the second cantilever plate having a second elongated slot that aligns with the second through hole, and the second mounting member passing through the second through hole and movably mounted in the second elongated slot.

7. The clamping and positioning mechanism according to claim 5, characterized in that, The second clamping block has a second connecting portion and a second clamping portion disposed opposite to each other, and the width of the second clamping block gradually decreases along the direction from the second connecting portion to the second clamping portion; The first clamping part and / or the second clamping part are recessed to form a clamping groove, and the sidewall of the clamping groove is provided with a magnetic attractor.

8. The clamping and positioning mechanism according to claim 1, characterized in that, The spacing adjustment mechanism includes a first adjustment block, a second adjustment block, an adjustment carrier plate, an adjustment screw, and a guide column. The first adjustment block is disposed on the first cantilever plate, the second adjustment block is disposed on the second cantilever plate, one end of the guide column is fixed to the first adjustment block, and the other end of the guide column slidably passes through the second adjustment block and the second cantilever plate and is connected to the adjustment carrier plate. The adjustment screw is screwed onto the adjustment carrier plate, and one end of the adjustment screw is connected to the second cantilever plate.

9. The clamping and positioning mechanism according to claim 8, characterized in that, The spacing adjustment mechanism also includes a handwheel, which is located at one end of the adjusting screw that extends out of the adjusting plate.

10. A labeling machine, characterized in that, Includes the clamping and positioning mechanism as described in any one of claims 1 to 9.