Clamping and positioning mechanism and labeling machine

Abstract

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

Description

Technical Field

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

[0002] A labeling machine is a device that sticks rolled paper or metal foil labels on specified packaging containers or products. It sends a signal through a sensor that the label is ready to be labeled, and the drive wheel rotates to peel the label from the roll and stick it to the specified position. The labeling machine usually has a peeling mechanism that can automatically peel the label and complete the sticking operation on the flat surface, cylindrical surface, concave surface and corners. In actual work, the shapes of the products to be labeled are various, such as regular structures such as round, square, triangular, or special-shaped structures. How to effectively position the product during labeling will greatly affect the labeling quality.

[0003] The component used for product positioning in the labeling machine is the clamping mechanism. The traditional clamping mechanism has a complex structure, occupies a large horizontal space, has a poor product positioning effect, and cannot adapt to different product sizes, which has certain application limitations. Summary of the invention

[0004] Based on this, it is necessary to provide a kind of device to address the problems of complex structure, large lateral space occupied, and poor positioning effect and capability.

[0005] In a first aspect of the present application, a clamping and positioning mechanism is provided, comprising:

[0006] Loading blocks;

[0007] a first cantilever plate, the first cantilever plate being mounted on the loading block;

[0008] a spacing adjustment mechanism, wherein the spacing adjustment mechanism is mounted on the first cantilever plate;

[0009] A second cantilever plate, wherein 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 with each other in a vertical direction;

[0010] a first clamping assembly, the first clamping assembly being disposed on the first cantilever plate; and

[0011] A second clamping assembly is provided on the second cantilever plate and 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 the clamping and positioning mechanism of the present scheme, the loading block, the first cantilever plate, the spacing adjustment mechanism, the second cantilever plate, the first clamping assembly and the second clamping assembly are overall 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 site area, and is conducive to the miniaturized design of the labeling machine; when working, when the product to be labeled is transported to the labeling station through the positioning turntable, the control device immediately outputs instructions to the first clamping assembly and the second clamping assembly, and the first clamping assembly and the second clamping assembly immediately clamp and position the product to be labeled, ensuring that the position of the product will not loosen or deflect during the labeling operation, thereby ensuring the labeling quality; in addition, for products with different shapes and sizes, the spacing adjustment mechanism can be flexibly adjusted to make the second cantilever plate and the first cantilever plate close to or away from each other, thereby adjusting the spacing between the first clamping assembly and the second clamping assembly, so as to achieve the purpose of meeting the clamping needs of products of different shapes and sizes, and greatly improve the scope of application of the clamping and positioning mechanism.

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

[0014] In one embodiment, 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 arranged on the first support plate, and the telescopic axis of the first clamping drive is vertically arranged, and the first clamping block is connected to the telescopic axis of the first clamping drive.

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

[0016] In one embodiment, the first clamping block has a first connecting portion and a first clamping portion that are arranged opposite to each other, and the width of the first clamping block is gradually decreasing 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 and a second clamping block, the second support plate is connected to the second cantilever plate, the second clamping drive is arranged on the second support plate, and the telescopic axis of the second clamping drive is vertically arranged, and the second clamping block is connected to the telescopic axis of the second clamping drive.

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

[0019] In one embodiment, the second clamping block has a second connecting portion and a second clamping portion that are arranged opposite to each other, and the width of the second clamping block is gradually decreasing along the direction from the second connecting portion to the second clamping portion;

[0020] Wherein, the first clamping portion and / or the second clamping portion is / are concavely formed with a clamping groove, and a magnetic body is arranged on a groove side wall of the clamping groove.

[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 slide column, the first adjustment block is arranged on the first cantilever plate, the second adjustment block is arranged on the second cantilever plate, one end of the guide slide column is fixed to the first adjustment block, the other end of the guide slide column can slide through the second adjustment block and the second cantilever plate and is connected to the adjustment carrier plate, the adjustment screw is screwed on 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 hand wheel, and the hand wheel is arranged at one end of the adjusting screw extending out of the adjusting carrier plate.

[0023] A second aspect of the present application further provides a labeling machine, which includes the clamping and positioning mechanism as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a structural schematic diagram of the clamping and positioning mechanism described in one embodiment of the present application.

[0027] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0028] Description of reference numerals:

[0029] 100. Clamping and positioning mechanism; 10. Loading block; 20. First cantilever plate; 30. Spacing adjustment mechanism; 31. First adjustment block; 32. Second adjustment block; 33. Adjustment carrier plate; 34. Adjustment screw; 35. Guide column; 36. Hand wheel; 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 portion; 532. First clamping portion; 54. First mounting member; 60. Second clamping assembly; 61. Second support plate; 611. Second through hole; 62. Second clamping drive; 63. Second clamping block; 631. Second connecting portion; 632. Second clamping portion; 64. Second mounting member. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, 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 implementation method.

[0036] See also Figure 1 , which is a clamping and positioning mechanism 100 shown in an embodiment of the present application, 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 installed on the loading block 10; the spacing adjustment mechanism 30 is installed 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 with each other in the vertical direction; the first clamping assembly 50 is arranged on the first cantilever plate 20; the second clamping assembly 60 is arranged 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 and position or release the product to be labeled.

[0038] For example, the clamping and positioning mechanism 100 in the present application is used in a labeling machine to position a lipstick when working. The lipstick is specifically designed to be cylindrical in shape, and the label needs to be attached to the bottom circular surface of the lipstick. Therefore, when the clamping and positioning mechanism 100 is working, the first clamping assembly 50 and the second clamping assembly 60 clamp the circumferential arc surface of the lipstick to achieve clamping and positioning of the lipstick.

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

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

[0041] In summary, the implementation of 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 arranged in a vertical structure as a whole, 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 be conducive to the miniaturization design of the labeling machine; when working, when the product to be labeled is transported to the labeling station through the positioning turntable, the control device immediately sends the first clamping assembly 50 and the second clamping assembly Component 60 outputs a command, and 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 deflect during the labeling operation, thereby 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 approach or move away from each other, thereby adjusting the spacing between the first clamping component 50 and the second clamping component 60, thereby achieving the purpose of meeting the clamping needs of products of different shapes and sizes, and greatly improving the scope of application 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 52 and a first clamping block 53. The first support plate 51 is connected to the first cantilever plate 20. The first clamping drive 52 is arranged on the first support plate 51, and the telescopic axis of the first clamping drive 52 is vertically arranged. The first clamping block 53 is connected to the telescopic axis of the first clamping drive 52.

[0043] It is easy to understand that the first support plate 51 is used to assemble and fix the first clamping drive member 52 and the first cantilever plate 20, and 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 the positioning of the lipstick.

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

[0045] In order to better adapt to products to be labeled with different shapes and sizes, to select the most suitable clamping position, and to ensure the clamping applicability and clamping positioning effect for various products to be labeled, the first clamping assembly 50 also includes a first mounting member 54, the first support plate 51 is provided with a first through hole 511, the first cantilever plate 20 is provided with a first long slot hole aligned with the first through hole 511, and the first mounting member 54 passes through the first through hole 511 and is movably installed in the first long slot hole.

[0046] Optionally, the first mounting member 54 is a bolt assembly, which is convenient for assembly and disassembly and has 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 that are arranged opposite to each other, and the width of the first clamping block 53 is gradually decreasing along the direction from the first connecting portion 531 to the first clamping portion 532 .

[0048] The first connection part 531 is used to connect with the telescopic shaft of the first clamping driving member 52, and the first clamping part 532 is used to clamp the lipstick. The first clamping block 53 adopts a decreasing width design, which ensures that the strength of the first clamping block 53 is sufficient 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 is extended, the inclined surfaces can slide with the guide holes on the machine table, improve the movement accuracy of the first clamping block 53, form lateral support for the first clamping block 53, and improve the rigidity of the first clamping block 53.

[0049] Similarly, in order to reduce the difficulty and cost of design and manufacturing, 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 driver 62 and a second clamping block 63, the second support plate 61 is connected to the second cantilever plate 40, the second clamping driver 62 is arranged on the second support plate 61, and the telescopic shaft of the second clamping driver 62 is vertically arranged, and the second clamping block 63 is connected to the telescopic shaft of the second clamping driver 62.

[0050] It is easy to understand that the second support plate 61 is used to assemble and fix the second clamping drive member 62 and the second cantilever plate 40, and maintain the vertical installation posture of the second clamping drive member 62; when working, 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 the positioning of the lipstick.

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

[0052] Please continue reading Figure 1 In order to better adapt to products to be labeled with different shapes and sizes, to select the most suitable clamping position, and to ensure the clamping applicability and clamping positioning effect for various products to be labeled, the second clamping assembly 60 further includes a second mounting member 64, the second support plate 61 is provided with a second through hole 611, the second cantilever plate 40 is provided with a second long slot hole aligned with the second through hole 611, and the second mounting member 64 passes through the second through hole 611 and is movably installed in the second long slot hole.

[0053] Optionally, the second mounting member 64 is a bolt assembly, which is convenient for assembly and disassembly and has 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 that are arranged opposite to each other, and the width of the second clamping block 63 is gradually decreasing along the direction from the second connecting portion 631 to the second clamping portion 632 .

[0055] The second connection part 631 is used to connect with the telescopic shaft of the second clamping driving member 62, and the second clamping part 632 is used to clamp the lipstick. The second clamping block 63 adopts a decreasing width design, which ensures that the second clamping block 63 is strong enough 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 is extended, the inclined surfaces can slide with the guide holes on the machine table, improve the movement accuracy of the second clamping block 63, form lateral support for the second clamping block 63, and improve the rigidity of the second clamping block 63.

[0056] The first clamping part 532 and / or the second clamping part 632 are concavely formed with a clamping groove, and the side wall of the clamping groove is provided with a magnetic body. The clamping groove is formed so that the clamping area with the circumferential surface of the lipstick can be increased, thereby improving the reliability of the clamping and positioning of the lipstick.

[0057] For spray cans with metal outer shells waiting to be labeled, the magnetic body added to the clamping groove can exert a magnetic force on the product. The superposition of the magnetic force and the clamping force can significantly increase the clamping firmness of the product.

[0058] Please continue reading Figure 1 In addition, 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 slide column 35, the first adjustment block 31 is arranged on the first cantilever plate 20, the second adjustment block 32 is arranged on the second cantilever plate 40, one end of the guide slide column 35 is fixed to the first adjustment block 31, and the other end of the guide slide column 35 can slide 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 on the adjustment carrier plate 33 and one end of the adjustment screw 34 is connected to the second cantilever plate 40.

[0059] It is easy to understand that the first adjustment block 31 and the second adjustment block 32 are used to realize the assembly and fixation of the spacing adjustment mechanism 30 with the first cantilever plate 20 and the second cantilever plate 40, and at the same time form a stroke installation and positioning for the guide slide 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 adjustment screw 34, and the adjustment screw 34 moves up and down in the threaded hole of the adjustment carrier plate 33, which can drive the first cantilever plate 20 to slide along the guide slide column 35, and then approach or move away from the second clamping assembly 60. The adjustment method is simple, the adjustment efficiency is high, and the feasibility is strong.

[0060] Furthermore, the spacing adjustment mechanism 30 further includes a hand wheel 36, which is disposed at one end of the adjustment screw 34 extending out of the adjustment carrier plate 33. The additional hand wheel 36 can improve the convenience and effectiveness of the rotation operation of the adjustment screw 34, eliminating the need for auxiliary tools.

[0061] In addition to the above, the present application further 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-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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 above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A clamping and positioning mechanism, characterized in that: include: Loading blocks; a first cantilever plate, the first cantilever plate being mounted on the loading block; a spacing adjustment mechanism, wherein the spacing adjustment mechanism is mounted on the first cantilever plate; A second cantilever plate, wherein 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 with each other in a vertical direction; a first clamping assembly, the first clamping assembly being disposed on the first cantilever plate; and A second clamping assembly is provided on the second cantilever plate and 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 arranged on the first support plate, and the telescopic axis of the first clamping drive is vertically arranged, and the first clamping block is connected to the telescopic axis of the first clamping drive.

3. The clamping and positioning mechanism according to claim 2, characterized in that: The first clamping assembly also includes a first mounting member, the first support plate is provided with a first through hole, the first cantilever plate is provided with a first long slot hole aligned with the first through hole, and the first mounting member passes through the first through hole and is movably mounted in the first long slot hole.

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 that are arranged opposite to each other, and the width of the first clamping block is gradually decreasing 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 and a second clamping block, the second support plate is connected to the second cantilever plate, the second clamping drive is arranged on the second support plate, and the telescopic axis of the second clamping drive is vertically arranged, and the second clamping block is connected to the telescopic axis of the second clamping drive.

6. The clamping and positioning mechanism according to claim 5, characterized in that: The second clamping assembly also includes a second mounting member, the second support plate is provided with a second through hole, the second cantilever plate is provided with a second long slot hole aligned with the second through hole, and the second mounting member passes through the second through hole and is movably mounted in the second long slot hole.

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 which are arranged opposite to each other, and the width of the second clamping block is gradually decreasing along the direction from the second connecting portion to the second clamping portion; Wherein, the first clamping portion and / or the second clamping portion is / are concavely formed with a clamping groove, and a magnetic body is arranged on a groove side wall of the clamping groove.

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 slide column. The first adjustment block is arranged on the first cantilever plate, the second adjustment block is arranged on the second cantilever plate, one end of the guide slide column is fixed to the first adjustment block, and the other end of the guide slide column can slide through the second adjustment block and the second cantilever plate and be connected to the adjustment carrier plate. The adjustment screw is screwed on 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 further comprises a hand wheel, and the hand wheel is arranged at one end of the adjustment screw extending out of the adjustment carrier plate.

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

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