Positioning turntable mechanism and product labeling machine

By designing a positioning turntable mechanism, the drive mechanism is used to drive the turntable to rotate, so that each positioning fixture passes through each station in turn, solving the problems of waiting intervals and poor continuity of traditional labeling machines, and achieving efficient labeling processing.

CN119796653APending Publication Date: 2025-04-11GUANGZHOU SHELL CONNING MECHANICAL EQUIP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411994387.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

Traditional labeling machines have intermittent processing and poor processing continuity, which affects the labeling processing efficiency.

Method used

A positioning turntable mechanism is designed, including a carrier plate, a drive mechanism, a rotating shaft, a rotating dial and a plurality of positioning fixtures. The drive mechanism drives the rotation shaft and the turntable to rotate, so that each positioning fixture passes through the clamping station, the labeling station, the marking detection station and the material discharge station in turn, achieving continuous processing.

Benefits of technology

Continuous processing of different products is realized, avoiding processing waiting intervals, and improving processing continuity and labeling processing efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119796653A_ABST
    Figure CN119796653A_ABST
Patent Text Reader

Abstract

The invention relates to a positioning turntable mechanism and a product labeling machine. The positioning turntable mechanism comprises a carrier plate, the driving mechanism is arranged on the carrier plate; the rotating shaft is rotatably arranged on the carrier plate and is in transmission connection with the driving mechanism; the rotating disc is connected with the end, away from the carrying plate, of the rotating shaft, and a clamping station, a labeling station, a label missing detection station and a discharging station are arranged on the periphery of the rotating disc at intervals in the rotating direction of the rotating disc; and the multiple positioning clamps are arranged on the rotary disc at intervals in the circumferential direction of the rotary disc, and each positioning clamp can sequentially pass through the clamping station, the labeling station, the label missing detection station and the discharging station. The front positioning clamp and the rear positioning clamp which are adjacent to each other can continuously and closely enter each station in a front-and-back relay manner, so that continuous machining of different products is met, machining waiting intervals do not exist in the process, the machining continuity is high, and the labeling machining efficiency is effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the technical field of automatic labeling equipment, and in particular to a positioning turntable mechanism and a product 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 flat surfaces, cylindrical surfaces, recessed areas and corners.

[0003] In traditional technology, the product moves along the conveyor line following the fixture, passing through the positioning station, labeling station, etc. in sequence. When all stations are processed, the next product enters the conveyor line for labeling processing. There will inevitably be processing waiting intervals, poor processing continuity, and affected labeling processing results. Summary of the invention

[0004] Based on this, it is necessary to provide a positioning turntable mechanism to address the problems of processing waiting intervals, poor processing continuity, and affecting labeling processing efficiency.

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

[0006] Carrier board;

[0007] A driving mechanism, wherein the driving mechanism is mounted on the carrier plate;

[0008] A rotating shaft, the rotating shaft is rotatably disposed on the carrier plate and is drivingly connected to the driving mechanism;

[0009] A turntable, the turntable is connected to one end of the rotating shaft away from the carrier plate, and a material clamping station, a labeling station, a missing label detection station and a material discharge station are arranged at intervals on the outer circumference of the turntable along the rotation direction thereof; and

[0010] A plurality of positioning fixtures are arranged on the turntable at intervals along the circumferential direction of the turntable, and each of the positioning fixtures can flow through the clamping station, the labeling station, the missing label detection station and the material discharge station in sequence.

[0011] When the positioning turntable mechanism of the present scheme is working, the driving mechanism drives the rotating shaft to rotate, so that the rotating shaft can drive the turntable connected thereto to rotate synchronously and at a uniform speed. Since a plurality of positioning fixtures will be installed in the circumferential direction of the turntable, therefore, with the continuous rotation of the turntable, each positioning fixture can sequentially and continuously pass through the clamping station to complete product clamping, pass through the labeling station to complete product labeling processing, pass through the missing label detection station to complete product missing label detection, and pass through the material discharge station to complete the release of the labeled product. Moreover, the adjacent previous positioning fixture and the next positioning fixture can continuously and closely connect to enter each station in a front-and-back relay, thereby meeting the continuous processing of different products. There will be no processing waiting intervals during the process, which makes the processing continuity high and effectively improves the labeling processing efficiency.

[0012] The technical solution of this application is further described below:

[0013] In one embodiment, the lengths of the arc lines formed between any two adjacent positioning fixtures are equal.

[0014] In one embodiment, the positioning fixture includes a mounting seat, a fixture driver and a fixture unit, the mounting seat is installed on the edge of the turntable, the fixture driver is installed on the mounting seat, and the fixture unit is connected to the fixture driver and can clamp or release the product.

[0015] In one of the embodiments, a slot is formed on the side of the mounting seat facing the turntable, and the slot is engaged with the edge of the turntable.

[0016] In one embodiment, the positioning fixture further includes a positioning column, which is fixed on the mounting seat and abuts against the upper surface of the turntable.

[0017] In one embodiment, the clamp driver includes a first driving arm and a second driving arm, and the clamp unit includes a first clamp body and a second clamp body, the first clamp body is connected to the first driving arm, the second clamp body is connected to the second driving arm, and the first clamp body and the second clamp body are spaced relative to each other and can move toward or away from each other.

[0018] In one embodiment, a first anti-slip pad is disposed on a side of the first clamp body facing the second clamp body; and / or a second anti-slip pad is disposed on a side of the second clamp body facing the first clamp body.

[0019] In one embodiment, the driving mechanism includes a driving source, a first synchronous transmission wheel, a synchronous transmission member and a second synchronous transmission wheel, the first synchronous transmission wheel and the second synchronous transmission wheel are rotatably arranged side by side and spaced apart from each other on the lower surface of the carrier plate, the synchronous transmission member is mounted on the outside of the first synchronous transmission wheel and the second synchronous transmission wheel, the driving source is connected to the first synchronous transmission wheel in transmission connection, the rotating shaft is coaxially connected to the second synchronous transmission wheel, a rotating support seat is provided at the connection between the rotating shaft and the second synchronous transmission wheel, and the rotating support seat is connected to the carrier plate.

[0020] In one embodiment, the positioning turntable mechanism also includes a stand, a slip ring module and an electric control module. The stand is vertically mounted on the upper surface of the carrier plate, the slip ring module is suspended at one end of the stand away from the carrier plate, and the slip ring module rotates in cooperation with the turntable. The electric control module is arranged on the turntable and is electrically connected to the slip ring module and the positioning fixture.

[0021] A second aspect of the present application further provides a product labeling machine, which includes the positioning turntable mechanism as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] 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.

[0024] Figure 1 This is a schematic structural diagram of a positioning turntable mechanism shown in an embodiment of the present application.

[0025] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0026] Figure 3 for Figure 1 Schematic diagram of the top view of the central positioning turntable mechanism.

[0027] Description of reference numerals:

[0028] 100. Positioning turntable mechanism; 10. Carrier plate; 20. Driving mechanism; 21. Driving source; 22. Synchronous transmission member; 23. Second synchronous transmission wheel; 30. Rotating shaft; 40. Turntable; 41. Material clamping station; 42. Labeling station; 43. Missing label detection station; 44. Material discharge station; 50. Positioning fixture; 51. Mounting seat; 511. Card slot; 52. Fixture driver; 53. Fixture unit; 531. First clamping body; 532. Second clamping body; 533. First anti-skid pad; 534. Second anti-skid pad; 54. Positioning column; 60. Stand; 70. Slip ring module; 80. Electronic control module; 200. Product. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] See also Figure 1 and Figure 3 , which is a positioning turntable mechanism 100 shown in an embodiment of the present application, includes a carrier plate 10, a driving mechanism 20, a rotating shaft 30, a turntable 40 and a plurality of positioning fixtures 50.

[0036] The driving mechanism 20 is mounted on the carrier plate 10; the rotating shaft 30 is rotatably disposed on the carrier plate 10 and is transmission-connected to the driving mechanism 20; the turntable 40 is connected to one end of the rotating shaft 30 away from the carrier plate 10, and the outer circumference of the turntable 40 is provided with a clamping station 41, a labeling station 42, a missing label detection station 43 and a material discharge station 44 at intervals along its rotation direction; a plurality of positioning fixtures 50 are arranged on the turntable 40 at intervals along the circumferential direction of the turntable 40, and each positioning fixture 50 can flow through the clamping station 41, the labeling station 42, the missing label detection station 43 and the material discharge station 44 in sequence.

[0037] In summary, the implementation of the technical solution of this embodiment will achieve the following beneficial effects: when the positioning turntable mechanism 100 of this solution is working, the driving mechanism 20 drives the rotating shaft 30 to rotate, so that the rotating shaft 30 can drive the turntable 40 connected thereto to rotate synchronously and at a uniform speed. Since a plurality of positioning fixtures 50 will be installed in the circumferential direction of the turntable 40, as the turntable 40 continuously rotates, each positioning fixture 50 can sequentially and continuously pass through the clamping station 41 to complete the clamping of the product 200, pass through the labeling station 42 to complete the labeling processing of the product 200, pass through the missing label detection station 43 to complete the missing label detection of the product 200, and pass through the discharge station 44 to complete the release of the labeled product 200, and the adjacent previous positioning fixture 50 and the next positioning fixture 50 can continuously and closely connect to each station to relay back and forth, thereby meeting the continuous processing of different products 200, and there will be no processing waiting intervals during the process, so that the processing continuity is high, and the labeling processing efficiency is effectively improved.

[0038] In the present application, the turntable 40 is a circular disk, which has a simple structure, is easy to process and form, and is convenient for reasonably arranging multiple positioning fixtures 50.

[0039] On the basis of the above embodiment, the length of the arc formed by any two adjacent positioning fixtures 50 is equal. In other words, the multiple positioning fixtures 50 are arranged at equal angles in the circumferential direction of the rotating disk 40, so that when the driving mechanism 20 drives the rotating disk to rotate a preset angle, each positioning fixture 50 can be driven to accurately switch from the current station to the next adjacent station, simplifying the movement mode, improving the station switching movement accuracy and the positioning accuracy of the positioning fixture 50 and each station.

[0040] For example, the present application shows an embodiment in which ten positioning fixtures 50 are installed on the turntable 40. At this time, the angle between any two adjacent positioning fixtures 50 is 36°, and the positioning fixtures 50 can be transferred between different workstations once each time the turntable 40 rotates 36°. Alternatively, when the angle between two adjacent workstations is equal to a multiple of 36°, the positioning fixtures 50 can also be rotated into each workstation in an intermittent manner.

[0041] Furthermore, detection devices are installed in the clamping station 41, labeling station 42, missing label detection station 43 and material discharging station 44. When the detection device is not aligned with the positioning fixture 50, no stop rotation signal is generated, and the turntable 40 can rotate normally. When the positioning fixture 50 rotates into the station and faces the detection device, the detection device immediately generates a stop rotation signal and transmits it to the controller of the product 200 labeling machine. The controller then controls the drive mechanism 20 to stop outputting power, realizes the positioning of the turntable 40, and ensures the reliability and accuracy of the subsequent material collection, labeling, missing detection and material discharging operations.

[0042] Please continue reading Figure 1 and Figure 2 In one embodiment, the positioning fixture 50 includes a mounting seat 51, a fixture driver 52 and a fixture unit 53. The mounting seat 51 is mounted on the edge of the turntable 40, the fixture driver 52 is mounted on the mounting seat 51, and the fixture unit 53 is connected to the fixture driver 52 and can clamp or release the product 200. The mounting seat 51 is used to mount and fix the fixture driver 52 on the turntable 40. The fixture driver 52 is connected to the fixture unit 53 and can control the fixture unit 53 to clamp or release, thereby completing the clamping or releasing operation of the product 200.

[0043] Specifically, the side of the mounting seat 51 facing the turntable 40 is concavely formed with a slot 511, and the slot 511 is engaged with the edge of the turntable 40. It is easy to understand that the slot width of the slot 511 is adapted to the edge thickness of the turntable 40, so that the edge of the turntable 40 is engaged in the slot 511 to form a tight fit structure, thereby ensuring that the mounting seat 51 and the turntable 40 are firmly engaged and installed. Compared with installation methods such as screwing, bonding, and welding, there is no need to punch holes, and no auxiliary materials such as adhesives and solders are used, which has obvious advantages of cost reduction and convenient assembly and disassembly.

[0044] Please continue reading Figure 2 Furthermore, the positioning fixture 50 further includes a positioning column 54, which is fixed on the mounting seat 51 and abuts against the upper surface of the turntable 40. The positioning column 54 is provided to locate the axial position of the positioning fixture driver 52.

[0045] For example, the positioning column 54 can be a magnetic column. On the one hand, the positioning column 54 can be magnetically fixed to the turntable 40 made of metal, and the combined effect of the magnetic force and the clamping force can improve the installation strength of the mounting base 51 and the turntable 40; on the other hand, the positioning column 54 is buckled on the upper surface of the turntable 40, and the positioning column 54 and the upper surface form a sufficiently large contact support area, thereby forming a better positioning effect and improving the stability of the overall installation of the positioning fixture 50.

[0046] In addition, based on any of the above embodiments, the clamp driver 52 includes a first driving arm and a second driving arm, and the clamp unit 53 includes a first clamp body 531 and a second clamp body 532. The first clamp body 531 is connected to the first driving arm, and the second clamp body 532 is connected to the second driving arm. The first clamp body 531 and the second clamp body 532 are spaced relative to each other and can move toward or away from each other. The first driving arm and the second driving arm have the freedom of movement to move away from or toward each other, so the first clamp body 531 and the second clamp body 532 can be synchronously driven to move toward each other to clamp and fix the product 200, or the first clamp body 531 and the second clamp body 532 can move away from each other to release the product 200.

[0047] For example, the clamp driver 52 may be a bidirectional cylinder, wherein the first driving arm and the second driving arm are two piston rods of the bidirectional cylinder. Alternatively, the clamp driver 52 is an integrated body of two cylinder bodies, wherein both cylinders have a piston rod, wherein one piston rod is the first driving arm, and the other piston rod is the second driving arm.

[0048] Please continue to refer to 2. In order to improve the firmness of clamping the product 200 and prevent the product 200 from loosening and sliding during circulation, in one embodiment, a first anti-slip pad 533 is provided on the side of the first clamp body 531 facing the second clamp body 532; and / or a second anti-slip pad 534 is provided on the side of the second clamp body 532 facing the first clamp body 531.

[0049] Preferably, the first clamp body 531 is provided with a first anti-skid pad 533 and the second clamp body 532 is provided with a second anti-skid pad 534. The first anti-skid pad 533 and the second anti-skid pad 534 are in contact with the product 200 at the same time to increase friction and prevent the product 200 from slipping and falling due to insufficient friction.

[0050] For example, the first anti-skid pad 533 and the second anti-skid pad 534 are rubber pads.

[0051] Alternatively, in other optional embodiments, negative pressure suction holes may be provided on the inner side of the first clamp body 531 and the inner side of the second clamp body 532, and the negative pressure suction force generated at the negative pressure suction holes may be used to adsorb and fix the product 200, thereby providing a stable clamping condition for the product 200.

[0052] Alternatively, supporting bosses are provided on the inner side surfaces of the first clamping body 531 and the second clamping body 532, and the product 200 clamped between the first clamping body 531 and the second clamping body 532 is vertically supported by the supporting bosses, thereby limiting the freedom of the product 200 and improving the stability of the positioning fixture 50 in clamping the product 200, etc.

[0053] Please continue reading Figure 1 In another embodiment, the driving mechanism 20 includes a driving source 21, a first synchronous transmission wheel, a synchronous transmission member 22 and a second synchronous transmission wheel 23. The first synchronous transmission wheel and the second synchronous transmission wheel 23 are rotatably arranged side by side on the lower surface of the carrier plate 10, and the synchronous transmission member 22 is mounted on the outside of the first synchronous transmission wheel and the second synchronous transmission wheel 23. The driving source 21 is connected to the first synchronous transmission wheel in a transmission connection, the rotating shaft 30 is coaxially connected to the second synchronous transmission wheel 23, and a rotating support seat is provided at the connection between the rotating shaft 30 and the second synchronous transmission wheel 23, and the rotating support seat is connected to the carrier plate 10.

[0054] The driving source 21 can be a driving motor, and the rotational power output by the driving motor is transmitted to the rotating shaft 30 via the first synchronous transmission wheel, the synchronous transmission member 22 and the second synchronous transmission wheel 23, thereby driving the rotating disk 40 and the positioning fixture 50 to rotate through the rotating shaft 30, thereby realizing continuous processing of different products 200. In this process, the rotating support seat plays a role in rotational support for the rotating shaft 30, and can provide a supporting and stabilizing effect for the rotation of the rotating shaft 30.

[0055] For example, the first synchronous transmission wheel, the synchronous transmission member 22 and the second synchronous transmission wheel 23 can cooperate to form any one of a synchronous belt pulley mechanism, a sprocket mechanism and the like, which can be flexibly selected according to actual needs.

[0056] The rotating support seat can be, but is not limited to, a bearing seat.

[0057] Please continue reading Figure 1 In one embodiment, the positioning turntable mechanism 100 further includes a stand 60, a slip ring module 70 and an electric control module 80. The stand 60 is vertically mounted on the upper surface of the carrier 10. The slip ring module 70 is suspended and mounted on one end of the stand 60 away from the carrier 10. The slip ring module 70 is rotatably matched with the turntable 40. The electric control module 80 is disposed on the turntable 40 and is electrically connected to the slip ring module 70 and the positioning fixture 50. Cables, air pipes and other components are installed inside the slip ring module 70, allowing the turntable 40 to form electrical and air connections with the electric control module 80 and the positioning fixture 50 in a rotating state, which satisfies the normal operation of the positioning fixture 50 while avoiding twisting and winding of the cables, air pipes and other components due to the rotation of the turntable 40, thereby improving the working reliability of the positioning turntable mechanism 100.

[0058] In addition to the above, the present application also provides a product 200 labeling machine, which includes the positioning turntable mechanism 100 as described in any of the above embodiments.

[0059] 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.

[0060] 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 positioning turntable mechanism, characterized in that: include: Carrier board; A driving mechanism, wherein the driving mechanism is mounted on the carrier plate; A rotating shaft, the rotating shaft is rotatably disposed on the carrier plate and is drivingly connected to the driving mechanism; A turntable, the turntable is connected to one end of the rotating shaft away from the carrier plate, and a material clamping station, a labeling station, a missing label detection station and a material discharge station are arranged at intervals on the outer circumference of the turntable along the rotation direction thereof; and A plurality of positioning fixtures are arranged on the turntable at intervals along the circumferential direction of the turntable, and each of the positioning fixtures can flow through the clamping station, the labeling station, the missing label detection station and the material discharge station in sequence.

2. The positioning turntable mechanism according to claim 1, characterized in that: The lengths of the arc lines formed by separating any two adjacent positioning fixtures are equal.

3. The positioning turntable mechanism according to claim 1, characterized in that: The positioning fixture comprises a mounting seat, a fixture driver and a fixture unit. The mounting seat is mounted on the edge of the turntable, the fixture driver is installed on the mounting seat, and the fixture unit is drivingly connected to the fixture driver and can clamp or release the product.

4. The positioning turntable mechanism according to claim 3, characterized in that: A clamping groove is formed on the side of the mounting seat facing the rotating disk, and the clamping groove is clamped with the edge of the rotating disk.

5. The positioning turntable mechanism according to claim 4, characterized in that: The positioning fixture further comprises a positioning column, which is fixed on the mounting seat and abuts against the upper surface of the rotating disk.

6. The positioning turntable mechanism according to claim 3, characterized in that: The clamp driver includes a first driving arm and a second driving arm, and the clamp unit includes a first clamp body and a second clamp body, the first clamp body is connected to the first driving arm, the second clamp body is connected to the second driving arm, and the first clamp body and the second clamp body are spaced relative to each other and can move toward or away from each other.

7. The positioning turntable mechanism according to claim 6, characterized in that: A first anti-slip pad is disposed on a side of the first clamp body facing the second clamp body; and / or a second anti-slip pad is disposed on a side of the second clamp body facing the first clamp body.

8. The positioning turntable mechanism according to claim 1, characterized in that: The driving mechanism includes a driving source, a first synchronous transmission wheel, a synchronous transmission member, and a second synchronous transmission wheel. The first synchronous transmission wheel and the second synchronous transmission wheel are rotatably arranged side by side and spaced apart from each other on the lower surface of the carrier plate. The synchronous transmission member is mounted on the outside of the first synchronous transmission wheel and the second synchronous transmission wheel. The driving source is connected to the first synchronous transmission wheel in a transmission manner. The rotating shaft is coaxially connected to the second synchronous transmission wheel. A rotating support seat is provided at the connection between the rotating shaft and the second synchronous transmission wheel, and the rotating support seat is connected to the carrier plate.

9. The positioning turntable mechanism according to claim 1, characterized in that: The positioning turntable mechanism also includes a stand, a slip ring module and an electric control module. The stand is vertically mounted on the upper surface of the carrier plate. The slip ring module is suspended at one end of the stand away from the carrier plate, and the slip ring module rotates in cooperation with the turntable. The electric control module is arranged on the turntable and is electrically connected to the slip ring module and the positioning fixture.

10. A product labeling machine, characterized in that: It comprises a positioning turntable mechanism as described in any one of claims 1 to 9.