Positioning device for conveying mechanism, labeling equipment and glass bead coating equipment

Abstract

The utility model provides a positioning device for a conveying mechanism, labeling equipment and glass bead coating equipment. The positioning device comprises a positioning assembly. The conveying mechanism is used for conveying materials along a conveying path, the conveying path is provided with a positioning position, and the materials conveyed to the positioning position are defined as to-be-positioned pieces. The positioning assembly is located on the side of the to-be-positioned piece and provided with a positioning plate capable of moving between a first position and a second position. Wherein the positioning plate is provided with a positioning part matched with the outer edge of a to-be-positioned piece, the positioning plate gradually gets close to the conveying mechanism when moving from the first position to the second position, and when the positioning plate is located at the second position, the positioning part abuts against the outer edge of the to-be-positioned piece; when moving from the second position to the first position, the positioning plate gradually gets away from the conveying mechanism, and when the positioning plate is located at the first position, the positioning part is separated from the outer edge of the to-be-positioned piece. Therefore, the positioning convenience and accuracy of the to-be-positioned piece are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bacterial colony cultivation, and in particular to a positioning device for a conveying mechanism, a labeling device and a glass bead coating device. Background Art

[0002] When culturing the strains, each culture dish containing the strains needs to be transported to the vicinity of the labeling equipment using a conveyor belt, and the labeling equipment is used to attach labels to the culture dishes to record the specific information of the strains in the culture dishes.

[0003] However, during transportation on the conveyor belt, the culture dish may be displaced on the conveyor belt, causing the labeling equipment to be unable to accurately attach the label to the required position of the culture dish, greatly affecting the qualification rate of the labeling equipment. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a positioning device for a conveying mechanism is provided. The conveying mechanism is used to convey materials along a conveying path, and a positioning position is provided on the conveying path. The material conveyed to the positioning position is defined as a part to be positioned, and the positioning device is used to position the part to be positioned on the conveying mechanism. The positioning device includes a positioning assembly, which is located next to the part to be positioned, and the positioning assembly has a positioning plate that can move between a first position and a second position. The positioning plate has a positioning portion that is adapted to the outer edge of the part to be positioned, and when the positioning plate moves from the first position to the second position, it gradually approaches the conveying mechanism, and when the positioning plate is in the second position, the positioning portion abuts against the outer edge of the part to be positioned; when the positioning plate moves from the second position to the first position, it gradually moves away from the conveying mechanism, and when the positioning plate is in the first position, the positioning portion is disengaged from the outer edge of the part to be positioned.

[0005] The positioning device of the present invention has a positioning plate in the positioning assembly that can move toward the direction of the part to be positioned when the position of the part to be positioned on the conveying mechanism is offset, so that the positioning portion of the positioning plate abuts against the outer edge of the part to be positioned, thereby adjusting the specific position of the part to be positioned on the conveying mechanism by pushing the part to be positioned, thereby effectively improving the convenience and accuracy of positioning the part to be positioned.

[0006] Exemplarily, the positioning assembly further includes a driving member and a connecting plate, wherein the connecting plate is connected to the driving member and the positioning plate respectively, and the driving member drives the positioning plate to move between the first position and the second position via the connecting plate.

[0007] Exemplarily, the driving member includes a rotating shaft and a protrusion, the rotating shaft is passed through one side of the protrusion, a rotating member is provided on the side of the protrusion away from the rotating shaft, and the rotation center of the rotating member is eccentrically arranged relative to the rotation center of the rotating shaft.

[0008] Exemplarily, a sliding groove adapted to the rotating member is provided on the connecting plate, and the sliding groove has a first part and a second part. When the rotating member applies a force to the first part of the sliding groove, it drives the positioning plate to move from the first position to the second position. When the rotating member applies a force to the second part of the sliding groove, it drives the positioning plate to move from the second position to the first position.

[0009] Exemplarily, the positioning assembly further includes a mounting seat, which is slidably connected to the positioning plate so that the positioning plate performs linear reciprocating motion relative to the mounting seat.

[0010] Exemplarily, a sliding groove is provided on one of the mounting seat and the positioning plate, and a sliding block is provided on the other of the mounting seat and the positioning plate.

[0011] Exemplarily, the positioning assembly further includes a sensing member, which is disposed below the positioning plate and is used to sense position information of the member to be positioned.

[0012] Exemplarily, there are two positioning portions on the positioning plate, and the two positioning portions are arranged side by side along the conveying direction of the conveying mechanism.

[0013] According to another aspect of the present invention, a labeling device is also provided, including a labeling assembly, a lifting assembly and the positioning device as described above, the labeling assembly and the positioning device are arranged on two opposite sides of the part to be positioned, the lifting assembly is arranged below the part to be positioned, the labeling assembly is used to affix labels to the side walls of the part to be positioned, and the lifting assembly is used to drive the part to be positioned to reciprocate in the vertical direction, and drive the part to be positioned to rotate circumferentially along the rotation center of the part to be positioned.

[0014] According to another aspect of the present invention, a glass bead coating device is provided, comprising a coating device and the labeling device as described above, wherein the coating device is arranged downstream of the labeling device.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other purposes, features, and advantages of the present invention will become more apparent through a more detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are intended to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and are not intended to limit the present invention. In the drawings, the same reference numerals generally represent the same components or steps.

[0017] Figure 1 A perspective view of a positioning device according to an exemplary embodiment of the present invention is shown;

[0018] Figure 2 A perspective view of a positioning assembly according to an exemplary embodiment of the present invention is shown.

[0019] Among them, the components represented by the reference numerals in the figures are:

[0020] 1. Conveying mechanism; 2. Part to be positioned; 3. Positioning assembly; 31. Positioning plate; 311. Positioning part; 32. Driving part; 321. Rotating shaft; 322. Bump; 323. Rotating part; 33. Connecting plate; 331. Sliding groove; 3311. First part; 3312. Second part; 34. Mounting seat; 4. Sliding groove; 5. Slider; 6. Sensing part. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more apparent, the following exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention. It should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described in this utility model, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present utility model.

[0022] In the following description, numerous details are provided to facilitate a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, and that the present invention may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well known in the art have not been described in detail.

[0023] To thoroughly understand the embodiments of the present invention, a detailed structure will be provided in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0024] One embodiment of the present invention provides a positioning device for a conveyor mechanism. The conveyor mechanism is used to convey materials along a conveyor path. The conveyor path has positioning locations. The materials conveyed to the positioning locations are defined as parts to be positioned. The positioning device is used to position the parts to be positioned on the conveyor mechanism. The positioning device can adjust the specific position of the parts to be positioned 2 on the conveyor mechanism 1 by pushing the parts to be positioned 2. The following describes a positioning device according to an embodiment of the present invention in detail with reference to the accompanying drawings.

[0025] like Figure 1 and Figure 2 As shown, the positioning device includes a positioning assembly 3. The positioning assembly 3 is located next to the part to be positioned 2, and the positioning assembly 3 has a positioning plate 31 that is movable between a first position and a second position. The positioning plate 31 has a positioning portion 311 that is adapted to the outer edge of the part to be positioned 2. When the positioning plate 31 moves from the first position to the second position, it gradually approaches the conveying mechanism 1, and when the positioning plate 31 is in the second position, the positioning portion 311 abuts against the outer edge of the part to be positioned 2; when the positioning plate 31 moves from the second position to the first position, it gradually moves away from the conveying mechanism 1, and when the positioning plate 31 is in the first position, the positioning portion 311 disengages from the outer edge of the part to be positioned 2.

[0026] The conveying mechanism 1 may specifically be a conveyor belt, which may drive the part to be positioned 2 to move along the conveying direction of the conveyor belt, so as to convey the part to be positioned 2 to the positioning position.

[0027] When the conveying mechanism 1 is used to convey the part to be positioned 2, the part to be positioned 2 is easily displaced on the conveying mechanism 1 when subjected to external force, thereby affecting subsequent processing operations on the part to be positioned 2. In this way, when the part to be positioned 2 moves to the positioning position, the positioning plate 31 can move from the first position to the second position, thereby adjusting the position of the part to be positioned 2 by pushing. When the position adjustment is completed, the positioning plate 31 can move from the second position to the first position.

[0028] The first position and the second position can be respectively represented as different positions of the positioning plate 31. Specifically, when the positioning plate 31 is in the first position, it can be away from the part to be positioned 2 on the conveying mechanism 1 to avoid the positioning plate 31 affecting the part to be positioned 2 transported on the conveying mechanism 1. When the positioning plate 31 is in the second position, the positioning portion 311 on the positioning plate 31 can abut against the part to be positioned 2 located at the positioning position to adjust the position of the part to be positioned 2.

[0029] The positioning portion 311 can be formed on the side of the positioning plate 31 facing the conveying mechanism 1. The shape of the positioning portion 311 can be adapted to the shape of the outer edge of the part to be positioned 2, so that when the positioning plate 31 is in the second position, the positioning portion 311 can stably abut against the outer edge of the part to be positioned 2, effectively improving the accuracy of positioning.

[0030] According to the positioning device of the present invention, when the position of the part to be positioned 2 on the conveying mechanism 1 is offset, the positioning plate 31 in the positioning assembly 3 can move toward the direction of the part to be positioned 2, so that the positioning portion 311 of the positioning plate 31 abuts against the outer edge of the part to be positioned 2, thereby adjusting the specific position of the part to be positioned 2 on the conveying mechanism 1 by pushing the part to be positioned 2, thereby effectively improving the convenience and accuracy of positioning the part to be positioned 2.

[0031] In some embodiments, as Figure 2 As shown, the positioning assembly 3 further includes a driving member 32 and a connecting plate 33 . The connecting plate 33 is connected to the driving member 32 and the positioning plate 31 respectively. The driving member 32 drives the positioning plate 31 to move between the first position and the second position through the connecting plate 33 .

[0032] The driving member 32 and the connecting plate 33 can be respectively arranged below the positioning plate 31, and the setting direction of the connecting plate 33 can be perpendicular to the plate surface direction of the positioning plate 31. One end of the connecting plate 33 can be connected to the lower plate surface of the positioning plate 31. The driving member 32 can be connected to the connecting plate 33 and drive the connecting plate 33 to move toward or away from the conveying mechanism 1, thereby driving the positioning plate 31 connected to the connecting plate 33 to move between the first position and the second position.

[0033] In the above embodiment, the driving member 32 can precisely control the movement of the positioning plate 31 via the connecting plate 33, thereby achieving precise positioning of the positioning plate 31. The connecting plate 33 can also provide support to the positioning plate 31, effectively improving the stability of the positioning assembly 3. Furthermore, the connection between the driving member 32, the connecting plate 33, and the positioning plate 31 can make the structure of the positioning assembly 3 more compact, greatly reducing the volume of the positioning assembly 3.

[0034] In some embodiments, as Figure 2 As shown, the driving member 32 includes a rotating shaft 321 and a protrusion 322. The rotating shaft 321 is arranged on one side of the protrusion 322. A rotating member 323 is provided on the side of the protrusion 322 away from the rotating shaft 321. The rotation center of the rotating member 323 is eccentrically arranged relative to the rotation center of the rotating shaft 321.

[0035] One end of the rotating shaft 321 can be connected to the driving end of the driving member 32 , and the other end of the rotating shaft 321 can be connected to the protrusion 322 . The protrusion 322 can rotate circumferentially around the rotation center of the rotating shaft 321 under the drive of the rotating shaft 321 .

[0036] The projection 322 may be in the shape of an elongated strip, and one end of the rotating shaft 321 may be connected to the middle region of the elongated projection 322. A rotating member 323 may be provided on the side of the elongated projection 322 away from the rotating shaft 321. The rotating member 323 may be disposed eccentrically with respect to the rotation center of the rotating shaft 321, thereby allowing the rotating member 323 to have a larger rotation range relative to the projection 322. The rotating member 323 is connected to the connecting plate 33, thereby driving the connecting plate 33 and the positioning plate 31 to move between a first position and a second position.

[0037] The rotating member 323 and the protrusion 322 can be detachably connected or integrally formed. The detachable connection can include a plug-in connection or an adhesive connection, etc., which is not specifically limited in this application.

[0038] Of course, the relative position between the rotating member 323 and the rotating shaft 321 can be adjusted according to actual use needs to achieve different transmission ratios, thereby allowing the positioning plate 31 to have different movement distances, effectively improving the practicality of the positioning device.

[0039] In the above embodiment, the rotating member 323 is eccentrically arranged relative to the rotation center of the rotating shaft 321, which can not only drive the connecting plate 33 and the positioning plate 31 to move between the first position and the second position, but also achieve a larger transmission ratio within a limited space, making the structural layout of the entire positioning device more compact and effectively improving the rationality of the layout of the positioning device.

[0040] In some embodiments, as Figure 2 As shown, a sliding groove 331 adapted to the rotating member 323 is provided on the connecting plate 33, and the sliding groove 331 has a first part 3311 and a second part 3312. When the rotating member 323 applies a force to the first part 3311 of the sliding groove 331, the positioning plate 31 is driven to move from the first position to the second position. When the rotating member 323 applies a force to the second part 3312 of the sliding groove 331, the positioning plate 31 is driven to move from the second position to the first position.

[0041] The shape of the sliding groove 331 can be an elongated strip, and the length direction of the sliding groove 331 can be perpendicular to the plate surface of the positioning plate 31. The first part 3311 and the second part 3312 can be respectively represented as two opposite inner walls in the elongated sliding groove 331.

[0042] The rotating member 323 can be slidingly arranged in the sliding groove 331. When the rotating shaft 321 of the driving member 32 drives the rotating member 323 to rotate clockwise, the rotating member 323 can abut against the first part 3311 of the sliding groove 331 and push the sliding groove 331 to move towards the conveying mechanism 1, so that the positioning plate 31 connected with the connecting plate 33 can move from the first position to the second position. When the rotating shaft 321 of the driving member 32 continues to drive the rotating member 323 to rotate clockwise, the rotating member 323 can abut against the second part 3312 of the sliding groove 331 and push the sliding groove 331 to move away from the conveying mechanism 1, so that the positioning plate 31 connected with the connecting plate 33 can move from the second position to the first position. In this way, the circumferential rotation of the rotating member 323 can be converted into the linear motion of the connecting plate 33 and the positioning plate 31, effectively ensuring the driving efficiency of the driving member 32.

[0043] In the above embodiment, the first part 3311 and the second part 3312 of the sliding groove 331 can realize the movement of the positioning plate 31 in two directions, i.e., from the first position to the second position and from the second position to the first position. In this way, not only can one sliding groove 331 realize the movement in two directions, but also the circumferential rotation of the rotating member 323 can be converted into the linear motion of the positioning plate 31, effectively simplifying the mechanical connection structure of the positioning device and reducing the manufacturing cost and maintenance complexity of the positioning device.

[0044] In some embodiments, as shown in Figure 2 The positioning assembly 3 further includes a mounting seat 34, which is slidingly connected with the positioning plate 31 to enable the positioning plate 31 to make linear reciprocating motion relative to the mounting seat 34.

[0045] The mounting seat 34 can be plate-shaped. The rotating shaft 321 can pass through the plate-shaped mounting seat 34 and be connected with the protrusion 322. The plate-shaped mounting seat 34 is located on two opposite sides of the protrusion 322 together with the connecting plate 33.

[0046] When the driving member 32 drives the positioning plate 31 to move between the first position and the second position, the positioning plate 31 can be slidingly connected with the mounting seat 34, and the mounting seat 34 can provide a support force to the positioning plate 31 to ensure the stability of the movement of the positioning plate 31.

[0047] In the above embodiment, the positioning plate 31 can be slidingly connected with the mounting seat 34 and can make linear reciprocating motion relative to the mounting seat 34. In this way, not only can the stability and efficiency of the movement of the positioning plate 31 be improved and the energy loss of the driving member 32 be reduced, but also the positioning accuracy of the positioning plate 31 can be improved, effectively improving the reliability of the positioning device.

[0048] In some embodiments, as shown in Figure 2As shown, one of the mounting seat 34 and the positioning plate 31 is provided with a sliding groove 4, and the other is provided with a sliding block 5.

[0049] In the above embodiment, the sliding connection between the mounting seat 34 and the positioning plate 31 can be achieved by the sliding groove 4 and the sliding block 5. The structure of the sliding groove 4 and the sliding block 5 is relatively simple, which not only facilitates manufacturing and maintenance, but also effectively reduces the friction and wear between the mounting seat 34 and the positioning plate 31, reduces the energy loss of the driving member 32, and improves the driving efficiency of the driving member 32.

[0050] In some embodiments, as Figure 1 As shown, the positioning assembly 3 further includes a sensing member 6, which is arranged below the positioning plate 31 and is used to sense the position information of the to-be-positioned member 2.

[0051] The surface of the positioning plate 31 can be formed with a hollow area, and the sensing member 6 can be arranged below the hollow area of the positioning plate 31.

[0052] The positioning assembly 3 can further include a control member electrically connected to the sensing member 6. When the conveying mechanism 1 conveys the to-be-positioned member 2 to the positioning assembly 3, the sensing member 6 can sense the position information of the to-be-positioned member 2 and generate a control instruction, and the control member can control the positioning plate 31 to move from the first position to the second position according to the control instruction.

[0053] The sensing member 6 can be a proximity sensor or an infrared sensor, etc., which is not limited in the present application, as long as it can sense the position information of the to-be-positioned member 2.

[0054] In the above embodiment, the automatic control of the positioning plate 31 can be achieved by the sensing member 6, which reduces the labor cost and effectively improves the positioning efficiency of the positioning assembly 3, thereby improving the practicality and convenience of the positioning assembly 3.

[0055] In some embodiments, as Figure 1 and Figure 2 As shown, the positioning plate 31 has two positioning portions 311, and the two positioning portions 311 are arranged side by side along the conveying direction of the conveying mechanism 1.

[0056] In the above embodiment, the positioning plate 31 with two positioning portions 311 can simultaneously position two to-be-positioned members 2, which greatly improves the positioning efficiency of the positioning plate 31 and further improves the practicality and convenience of the positioning device.

[0057] According to another aspect of the utility model, still provide a kind of labeling equipment, including labeling assembly, jacking assembly and the positioning device as described above, labeling assembly with positioning device is set to the two opposite sides of the to-be-positioned member 2, jacking assembly is set to the below of the to-be-positioned member 2, labeling assembly is used to paste label to the side wall of the to-be-positioned member 2, jacking assembly is used to drive the to-be-positioned member 2 reciprocating motion along vertical direction, and drive the to-be-positioned member 2 circumferential rotation along the rotation center of the to-be-positioned member 2.

[0058] After positioning device completes positioning to the to-be-positioned member 2 on conveying mechanism 1, labeling assembly can paste label to the side wall of the to-be-positioned member 2, to mark the specific information of the to-be-positioned member 2.

[0059] Before labeling assembly pastes label to the side wall of the to-be-positioned member 2, jacking assembly can drive the to-be-positioned member 2 reciprocating motion along vertical direction, and drive the to-be-positioned member 2 circumferential rotation along the rotation center of the to-be-positioned member 2, so that the pasting area of label on the to-be-positioned member 2 can be flexibly adjusted, and then the flexibility and practicality of labeling equipment use are improved.

[0060] The labeling equipment of the utility model includes the positioning device as described above, since the positioning device has the beneficial effects as described above, the labeling equipment including the positioning device as described above also necessarily has the beneficial effects as described above.

[0061] According to still another aspect of the utility model, still provide a kind of glass bead coating equipment, including coating equipment and the labeling equipment as described above, coating equipment is set to the downstream of labeling equipment. Among them, coating equipment is used to when bacterial culture, by adding glass bead in culture medium, and the glass bead that sticks with bacterial strain is moved on culture medium, to realize the inoculation of bacterial strain. Among them, the track that glass bead moves on culture medium can be understood as coating.

[0062] When using labeling equipment to paste label to the to-be-positioned member 2, conveying mechanism 1 can convey the to-be-positioned member 2 to coating equipment, to make coating equipment can add glass bead to the to-be-positioned member 2.

[0063] The glass bead coating equipment of the utility model includes the labeling equipment as described above, since the labeling equipment has the beneficial effects as described above, the glass bead coating equipment including the labeling equipment as described above also necessarily has the beneficial effects as described above.

[0064] Although example embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the example embodiments are only exemplary and are not intended to limit the scope of the utility model thereto. Various changes and modifications can be made therein by those of ordinary skill in the art without departing from the scope and spirit of the utility model. All these changes and modifications are intended to be included within the scope of the utility model as claimed in the appended claims.

[0065] For ease of description, the term "connected" may be used herein to describe the relationship between one or more elements or features shown in the figures and other elements or features. It should be understood that "connected" may include direct connection or indirect connection via other elements or features, and this document is intended to include all of these situations.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0067] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0068] The present invention has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Furthermore, those skilled in the art will appreciate that the present invention is not limited to the above embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for a conveying mechanism, wherein the conveying mechanism is used to convey materials along a conveying path, the conveying path has a positioning position, and the material conveyed to the positioning position is defined as a to-be-positioned part. The positioning device is used to position the to-be-positioned part on the conveying mechanism, characterized in that: include: a positioning assembly, the positioning assembly being located beside the part to be positioned, the positioning assembly comprising a positioning plate movable between a first position and a second position; In which, the positioning plate has a positioning portion that is adapted to the outer edge of the part to be positioned. When the positioning plate moves from the first position to the second position, it gradually approaches the conveying mechanism, and when the positioning plate is in the second position, the positioning portion abuts against the outer edge of the part to be positioned; when the positioning plate moves from the second position to the first position, it gradually moves away from the conveying mechanism, and when the positioning plate is in the first position, the positioning portion is disengaged from the outer edge of the part to be positioned.

2. The positioning device according to claim 1, characterized in that The positioning assembly further includes a driving member and a connecting plate, wherein the connecting plate is connected to the driving member and the positioning plate respectively, and the driving member drives the positioning plate to move between the first position and the second position through the connecting plate.

3. The positioning device according to claim 2, characterized in that The driving member includes a rotating shaft and a protrusion. The rotating shaft passes through one side of the protrusion. A rotating member is provided on the side of the protrusion away from the rotating shaft. The rotation center of the rotating member is eccentrically arranged relative to the rotation center of the rotating shaft.

4. The positioning device according to claim 3, characterized in that The connecting plate is provided with a sliding groove adapted to the rotating member, and the sliding groove has a first part and a second part. When the rotating member applies a force to the first part of the sliding groove, the positioning plate is driven to move from the first position to the second position. When the rotating member applies a force to the second part of the sliding groove, the positioning plate is driven to move from the second position to the first position.

5. The positioning device according to claim 3, characterized in that The positioning assembly further includes a mounting seat, which is slidably connected to the positioning plate so that the positioning plate performs linear reciprocating motion relative to the mounting seat.

6. The positioning device according to claim 5, characterized in that A sliding groove is provided on one of the mounting seat and the positioning plate, and a sliding block is provided on the other of the mounting seat and the positioning plate.

7. The positioning device according to claim 1, characterized in that The positioning assembly further includes a sensing member, which is disposed below the positioning plate and is used to sense position information of the member to be positioned.

8. The positioning device according to claim 1, characterized in that There are two positioning parts on the positioning plate, and the two positioning parts are arranged side by side along the conveying direction of the conveying mechanism.

9. A labeling device, characterized in that: It includes a labeling component, a lifting component and a positioning device as described in any one of claims 1 to 8, the labeling component and the positioning device are arranged on two opposite sides of the part to be positioned, the lifting component is arranged below the part to be positioned, the labeling component is used to affix labels to the side walls of the part to be positioned, and the lifting component is used to drive the part to be positioned to reciprocate in the vertical direction, and drive the part to be positioned to rotate circumferentially along the rotation center of the part to be positioned.

10. A glass bead coating device, characterized in that: The invention comprises a coating device and the labeling device according to claim 9, wherein the coating device is arranged downstream of the labeling device.

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