Star wheel conveying mechanism and bottle feeding system

Abstract

The present invention discloses a star-wheel conveying mechanism and bottle feeding system. The star-wheel conveying mechanism includes a star-wheel main body, which includes a bottle feeding assembly. The bottle feeding assembly includes a movable layer and a fixed layer stacked on the movable layer. The movable layer has a plurality of first bottle-gripping grooves recessed on its edge, and the fixed layer has a plurality of second bottle-gripping grooves recessed on its edge. The first and second bottle-gripping grooves are each used to clamp bottles. The first and second bottle-gripping grooves have different notch widths. The movable layer can extend and retract relative to the fixed layer to selectively extend the first bottle-gripping grooves outside the fixed layer. The mechanism is compatible with bottles of different sizes, exhibiting excellent applicability and flexibility.

Description

Technical Field

[0001] The present invention relates to the technical field of filling equipment, and in particular to a star wheel conveying mechanism and a bottle conveying system. Background Art

[0002] In the field of filling, it is usually necessary to use a star wheel conveying mechanism to convey bottles. The star wheel conveying mechanism includes a star wheel with a plurality of bottle clamping grooves on its outer periphery. When in use, the bottle is placed in the bottle clamping grooves, and the star wheel then protects the bottle body.

[0003] Since the size of the bottle clamping groove needs to be adapted to the diameter of the bottle body of a single bottle to ensure smooth bottle transportation, for most star wheel conveying mechanisms, one model of star wheel conveying mechanism is only suitable for bottles of one size. When bottles of different sizes need to be conveyed, the star wheel needs to be replaced, which is time-consuming, labor-intensive and inconvenient to use. Summary of the Invention

[0004] The object of the present invention is to provide a star wheel conveying mechanism and a bottle conveying system, which are compatible with bottles of different sizes, have good applicability, and are flexible in use.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] On the one hand, a star wheel conveying mechanism is provided, comprising a star wheel main body, the star wheel main body comprising a bottle feeding assembly, the bottle feeding assembly comprising a movable layer and a fixed layer stacked with the movable layer, the movable layer having a plurality of first bottle clamping grooves recessed on an edge thereof, the fixed layer having a plurality of second bottle clamping grooves recessed on an edge thereof, the first bottle clamping grooves and the second bottle clamping grooves both being used to clamp bottles, the first bottle clamping grooves and the second bottle clamping grooves having different notch widths, the movable layer being extendable and retractable relative to the fixed layer to drive the first bottle clamping grooves to selectively extend outside the fixed layer.

[0007] As a preferred technical solution of the star wheel conveying mechanism, it includes two groups of the bottle feeding assemblies, which are spaced apart in the vertical direction, wherein the first bottle clamping groove in one group of the bottle feeding assemblies corresponds one-to-one with the first bottle clamping groove in the other group of the bottle feeding assemblies, and wherein the second bottle clamping groove in one group of the bottle feeding assemblies corresponds one-to-one with the second bottle clamping groove in the other group of the bottle feeding assemblies.

[0008] As a preferred technical solution of the star wheel conveying mechanism, it also includes an adjustment component, which is used to push the movable layer to extend to the outside of the fixed layer or push the movable layer to retract into the inside of the fixed layer.

[0009] As a preferred technical solution of the star wheel conveying mechanism, the adjustment component includes a push plate arranged on one side of the movable layer and a push rod connected to the push plate at one end. The push rod has an adjustment handle at the end away from the push plate, and the push plate can be driven to move relative to the fixed layer through the adjustment handle.

[0010] As a preferred technical solution of the star wheel conveying mechanism, the movable layer is composed of at least three movable plates, all the movable plates in the same group of the bottle feeding assemblies are distributed in a ring shape, one end of the movable plate is recessed with the first bottle clamping groove, and the push plate is composed of at least two arc-shaped push plate splits, each of the push plates is connected to the push rod, and the movable plate is provided with a first sliding long hole corresponding to the push rod, and the push rod is slidably arranged in the first sliding long hole, when the push rod slides along the length direction of the first sliding long hole, it drives the push plate split to rotate around its arc center, the adjusting assembly also includes a push pin connected to the push plate split, the movable plate is provided with a second sliding long hole corresponding to the push pin, and the push pin is slidably arranged in the second sliding long hole, when the push plate split is driven, the push pin moves along the length direction of the second sliding long hole, driving the movable plate to extend or retract relative to the fixed layer.

[0011] As a preferred technical solution of the star wheel conveying mechanism, each group of the bottle feeding assemblies corresponds to the push plate, the two push plates corresponding to the two groups of the bottle feeding assemblies are separately connected by the push rod, and the same push pin passes through the corresponding movable plates in the two groups of the bottle feeding assemblies.

[0012] As a preferred technical solution of the star wheel conveying mechanism, a guide plate is provided between two adjacent movable plates in the same group of the bottle feeding assemblies, the guide plate is located on one side of the movable plate, and a guide groove for guiding the push plate is provided on the guide plate, and the push plate rotates in the guide groove along the extension direction of the guide groove.

[0013] As a preferred technical solution of the star wheel conveying mechanism, it also includes a locking piece threadedly connected to the movable layer. By rotating the locking piece, one end of the locking piece can be pressed against a side surface of the fixed layer to limit the expansion and contraction of the movable layer relative to the fixed layer.

[0014] As a preferred technical solution of the star wheel conveying mechanism, it further includes a protective plate assembly arranged around the outer periphery of the star wheel body, and the protective plate assembly is used to limit the bottle from escaping from the first bottle clamping groove or the second bottle clamping groove.

[0015] On the other hand, a bottle delivery system is provided, comprising the star wheel delivery mechanism described above.

[0016] The present invention has the following beneficial effects: the fixed layer is fixed in position, and the movable layer can be extended or retracted relative to the fixed layer, so that the first bottle clamping groove selectively extends outside the fixed layer. When larger bottles need to be transported, the movable layer is retracted inside the fixed layer (i.e., the movable layer is in a retracted state), preventing the extension of the movable layer from interfering with the clamping of the bottle by the second bottle clamping groove. When smaller bottles need to be transported, the movable layer is extended outside the fixed layer (i.e., the movable layer is in an extended state), and the bottle to be transported is placed in the first bottle clamping groove to transport the smaller bottle. By retracting the movable layer, the bottle can be flexibly clamped in the first bottle clamping groove or the second bottle clamping groove, making the star wheel conveying mechanism suitable for bottles of different sizes, thereby improving the applicability of the star wheel conveying mechanism and simplifying the structure, which is beneficial to cost reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0018] Figure 1 Schematic diagram of the structure of the bottle feeding system described in the embodiment.

[0019] Figure 2 Schematic diagram of the structure of the star wheel conveying mechanism described in the embodiment.

[0020] Figure 3 Schematic diagram of the structure of the star wheel body described in the embodiment (the bottle mouth conveying assembly is not shown in the figure).

[0021] Figure 4 This is an exploded schematic diagram of the star wheel body described in the embodiment (the bottle mouth conveying assembly is not shown in the figure).

[0022] Figure 5 This is a cross-sectional view of the star wheel body described in the embodiment (the bottle mouth conveying assembly is not shown in the figure).

[0023] In the picture:

[0024] 100, star wheel body; 200, protective plate assembly; 300, bottle;

[0025] 1. Bottle delivery assembly; 101. Fixed layer; 1011. Fixed plate; 102. Movable layer; 1021. Movable plate; 103. Support plate; 104. First sliding slot; 105. Guide hole; 106. Adjustment hole; 107. Second bottle clamping groove; 108. Guide plate; 109. Connecting column; 110. Second sliding slot; 2. Adjustment assembly; 201. Push rod; 202. Adjustment handle; 203. Push plate; 204. Push pin; 205. Guide pin; 3. Bottle mouth delivery assembly. DETAILED DESCRIPTION

[0026] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0027] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] like Figures 1 to 5 As shown, the present invention provides a star wheel conveying mechanism, including a star wheel body 100, the star wheel body 100 including a bottle feeding assembly 1, the bottle feeding assembly 1 including a movable layer 102 and a fixed layer 101 stacked with the movable layer 102, the movable layer 102 having a plurality of first bottle clamping grooves recessed on its edge, and the fixed layer 101 having a plurality of second bottle clamping grooves recessed on its edge. The first bottle clamping grooves and the second bottle clamping grooves 107 are both used to clamp bottles 300, and the first bottle clamping grooves and the second bottle clamping grooves 107 have different notch widths. The movable layer 102 can be extended and retracted relative to the fixed layer 101 to drive the first bottle clamping grooves to selectively extend outside the fixed layer 101.

[0030] The first and second bottle-clamping grooves 107 are located at ends facing away from the movable layer 102 and the fixed layer 101, respectively. During use, the bottle 300 is moved from the first or second bottle-clamping groove 107 by rotating the star wheel body 100 to transport the bottle 300. Because the first and second bottle-clamping grooves 107 have different widths, they can hold bottles of different sizes, meaning bottles of different diameters. In this embodiment, the width of the first bottle-clamping groove on the movable layer 102 is smaller than the width of the second bottle-clamping groove 107 on the fixed layer 101. Therefore, the first bottle-clamping groove 107 is intended for smaller bottles 300, while the second bottle-clamping groove 107 is intended for larger bottles 300. In other embodiments, the sizes of the first and second bottle-clamping grooves 107 can be interchanged.

[0031] The fixed layer 101 is fixed in position, and the movable layer 102 can extend or retract relative to the fixed layer 101, so that the first bottle clamping groove selectively extends outside the fixed layer 101. When a larger bottle 300 needs to be transported, the movable layer 102 is retracted inside the fixed layer 101 (i.e., the movable layer 102 is in a retracted state), preventing the extension of the movable layer 102 from interfering with the gripping of the bottle 300 by the second bottle clamping groove 107. When a smaller bottle 300 needs to be transported, the movable layer 102 is extended outside the fixed layer 101 (i.e., the movable layer 102 is in an extended state), and the bottle 300 to be transported is placed in the first bottle clamping groove, thereby clamping the smaller bottle 300 in the first bottle clamping groove. When the movable layer 102 extends outside the fixed layer 101, the notch end of the first bottle clamping groove of the movable layer 102 can protrude beyond the notch end of the second bottle clamping groove 107 of the fixed layer 101. In this structure, the star wheel body 100 can have the first bottle clamping groove and the second bottle clamping groove 107 facing each other, or the first bottle clamping groove and the second bottle clamping groove 107 can be staggered. When the movable layer 102 extends outside the fixed layer 101, the notch end of the first bottle clamping groove can be flush with the notch end of the second bottle clamping groove 107 of the fixed layer 101. In this structure, the star wheel body 100 needs to have the first bottle clamping groove and the second bottle clamping groove 107 facing each other to prevent the fixed layer 101 from interfering with the bottle clamping device 300 of the first bottle clamping groove. The star-wheel conveying mechanism of this embodiment can flexibly select to clamp the bottle 300 in the first bottle clamping groove or the second bottle clamping groove 107 by means of the telescopic movable layer 102, so that the star-wheel conveying mechanism is suitable for bottles 300 of different sizes, thereby improving the applicability of the star-wheel conveying mechanism and simplifying the structure, which is conducive to cost reduction.

[0032] In actual use, the star wheel body 100 also includes a bottle-mouth conveying assembly 3, which is located above the bottle-feeding assembly 1. A third bottle-gripping groove is recessed on its edge, corresponding one-to-one with either the first or second bottle-gripping grooves 107. The bottle 300 is clamped within the third bottle-gripping groove adjacent to the bottle mouth. Since the size of the bottle 300 typically changes only the bottle diameter, not the bottle mouth, the notch of the third bottle-gripping groove is suitable for most bottles 300.

[0033] The star-wheel conveyor mechanism includes two sets of bottle-feeding assemblies 1, spaced apart in the vertical direction. The first bottle-gripping grooves in one set of bottle-feeding assemblies 1 correspond one-to-one with the first bottle-gripping grooves in the other set of bottle-feeding assemblies 1, and the second bottle-gripping grooves 107 in one set of bottle-feeding assemblies 1 correspond one-to-one with the second bottle-gripping grooves 107 in the other set of bottle-feeding assemblies 1. By providing two sets of bottle-feeding assemblies 1, the corresponding bottle-gripping grooves of the two sets of bottle-feeding assemblies 1 can be simultaneously clamped at different heights on the bottle body, facilitating the stability of the bottle container 300. Specifically, the fixing layers 101 in the two sets of bottle-feeding assemblies 1 are connected by connecting posts 109, which connect the two sets of bottle-feeding assemblies 1 into a single unit.

[0034] In this embodiment, the fixed layer 101 of the upper bottle feeding assembly 1 is disposed above the movable layer 102, while the fixed layer 101 of the lower bottle feeding assembly 1 is disposed below the movable layer 102. The fixed layers 101 of the two bottle feeding assemblies 1 are disposed back to back, and the movable layer 102 of the two bottle feeding assemblies 1 is disposed between the two fixed layers 101. This design allows the fixed layers 101 to provide protection for the movable layer 102. In other embodiments, the specific positions of the fixed layers 101 and the movable layer 102 can be flexibly arranged as needed, and the positions of the fixed layers 101 and the movable layer 102 in each bottle feeding assembly 1 are not specifically limited herein.

[0035] As a preferred solution, the star wheel conveying mechanism further includes an adjustment component 2, which is used to push the movable layer 102 to extend outside the fixed layer 101 or to push the movable layer 102 to retract inside the fixed layer 101. The function of the adjustment component 2 is to adjust the selective extension of the movable layer 102 to facilitate operation.

[0036] Specifically, the adjustment assembly 2 includes a push plate 203 disposed on one side of the movable layer 102 and a push rod 201 connected to the push plate 203 at one end. The push rod 201 has an adjustment handle 202 at the end away from the push plate 203. The adjustment handle 202 can be used to drive the push plate 203 to move relative to the fixed layer 101. The adjustment handle 202 can drive the push plate 203 to move, thereby driving the movable layer 102 to move relative to the fixed layer 101, thereby achieving regulation of the movable layer 102.

[0037] Furthermore, the movable layer 102 is composed of at least three movable plates 1021, and all the movable plates 1021 in the same group of bottle feeding components 1 are distributed in a ring shape. A first bottle clamping groove is provided at one end of the movable plate 1021, and the push plate 203 is composed of at least two arc-shaped push plate splits. Each push plate 203 is connected to a push rod 201, and a first sliding long hole 104 is provided through the movable plate 1021 corresponding to the push rod 201. The push rod 201 is slidably arranged in the first sliding long hole 104. When the push rod 201 slides along the length direction of the first sliding long hole 104, it can drive the push plate split to rotate around its arc center. The adjustment assembly 2 also includes a push pin 204 connected to the push plate. The movable plate 1021 is provided with a second sliding slot 110 corresponding to the push pin 204. The push pin 204 is slidably disposed within the second sliding slot 110. When the push plate is driven to separate, the push pin 204 moves along the length of the second sliding slot 110, thereby driving the movable plate 1021 to extend or retract relative to the fixed layer 101. Specifically, the length directions of the first sliding slot 104 and the second sliding slot 110 are both arranged at an angle to the arc-shaped center direction of the push plate. Among them, a part of the push plate 203 is slidably connected to the push rod 201, and the other part of the push plate 203 is slidably connected to the push pin 204. Since the push pin 204 is connected to the push plate 203, when the push plate 203 is driven to rotate by the push rod 201, the push pin 204 also moves synchronously with the push rod 201, thereby allowing all movable plates 1021 corresponding to the same push plate 203 to be extended. This design makes it possible to adjust the space occupied by the push plate 203 small, which is conducive to saving the space occupied by the star wheel conveying mechanism. Since the push pin 204 is connected to the push plate 203, the rotation of the push plate 203 can drive the push pin 204 to slide in the second sliding slot 110, thereby driving the movable plate 1021 to move.

[0038] Each bottle feeding assembly 1 has a corresponding push plate 203. The two push plates in the two bottle feeding assemblies 1 are connected by a push rod 201. The same push pin 204 passes through the movable plates 1021 in the two bottle feeding assemblies 1. When the adjustment handle 202 on the push plate is adjusted, all the push pins 204 on the same push plate move synchronously.

[0039] During the extension and retraction process of the movable plate 1021, in order to prevent the extension and retraction direction of the movable plate 1021 from being deviated, a guide pin 205 is provided on the movable plate 1021. Specifically, the movable plate 1021 is provided with a guide hole 105, and the guide pin 205 is slidably disposed within the guide hole 105. The length direction of the guide hole 105 corresponds to the same extension and retraction direction of the movable plate 1021. The guide pin 205 slides along the length direction of the guide hole 105 to guide the movable plate 1021.

[0040] Furthermore, a guide plate 108 is disposed between two adjacent movable plates 1021 within the same bottle feeding assembly 1. The guide plate 108 is located on one side of the movable plate 1021 and is provided with a guide groove for guiding the push plate 203. The push plate 203 rotates within the guide groove along the direction in which the guide groove extends. Specifically, the movable layer 102 is located between the fixed layer 101 and the guide plate 108. In an actual design, the guide plate 108 can be connected to the fixed layer 101 via a connecting component (not shown) to fix the position of the guide plate 108. When the push plate 203 is pushed, it rotates within the guide groove along the direction in which the guide groove extends, preventing the push plate 203 from sliding in a direction that deviates.

[0041] In this embodiment, the star-wheel conveying mechanism further includes a locking member (not shown) threadedly connected to the movable layer 102. Rotating the locking member causes one end of the locking member to abut against a side surface of the fixed layer 101, thereby restricting the movable layer 102 from extending relative to the fixed layer 101. Specifically, the movable layer 102 has threaded holes extending through its upper and lower surfaces, into which the locking member is threadedly engaged. Rotating the locking member within the threaded holes causes one end of the locking member to extend toward the fixed layer 101. When the locking member abuts against the fixed layer 101, the movable layer 102 is restricted from moving relative to the fixed layer 101, thereby securing the movable layer 102. When smaller bottles 300 need to be conveyed, the movable layer 102 is extended outside the fixed layer 101, whereupon the locking member secures the position of the movable layer 102, preventing it from moving relative to the fixed layer 101 due to vibration or misoperation during use. The provision of the locking member improves the reliability of the movable layer 102. Specifically, the locking member may be a locking bolt or a locking screw.

[0042] The star wheel conveying mechanism further includes a support plate 103 , and the star wheel body 100 is disposed on the support plate 103 . The function of the support plate 103 is to provide support for the star wheel body 100 .

[0043] In this embodiment, the fixed layer 101 in the upper bottle feeding assembly 1 is located on a side facing away from the support plate 103. An adjustment handle 202 protrudes from the topmost fixed layer 101. The topmost fixed layer 101 is provided with an arc-shaped adjustment hole 106. A push rod 201 extends through the adjustment hole 106 and slides within the hole. During operation, sliding the adjustment handle 202 along the extension of the adjustment hole 106 drives the push plate 203 relative to the fixed layer 101, facilitating operation. In this embodiment, two adjustment handles 202 are provided on the same push plate 203, allowing for flexible operation of either handle 202 as needed. Specifically, the fixed layer 101 is composed of at least two arc-shaped fixing plates 1011, which surround the annular fixed layer 101. The fixed layer 101 is formed as a split-body structure, simplifying manufacturing. Of course, in other embodiments, the fixed layer 101 can also be formed integrally.

[0044] In one embodiment, a protective plate assembly 200 is further provided around the outer periphery of the star wheel body 100. The protective plate assembly 200 is used to prevent the bottles 300 from slipping out of the first bottle clamping groove or the second bottle clamping groove 107. The protective plate assembly 200 prevents the bottles 300 from slipping out of the first bottle clamping groove or the second bottle clamping groove 107 during transportation, thereby providing protection for the bottles 300.

[0045] In this embodiment, referring to Figure 1 The arrow in the figure indicates the rotation direction of the star wheel body 100, i.e., the conveying direction of the bottles 300. A bottle delivery system is also provided, comprising the star wheel conveying mechanism of any of the aforementioned embodiments. The bottle delivery system can accommodate bottles 300 of varying sizes, thus offering excellent adaptability. Specifically, the bottle delivery system can include at least two sets of star wheel conveying mechanisms, which are connected in sequence. During delivery, the star wheel bodies 100 in each of the star wheel mechanisms are rotated sequentially, so that the bottles 300 are conveyed along the rotational direction of the star wheel bodies 100.

[0046] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0047] In this specification, reference to terms such as "one embodiment" or "example" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0048] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0049] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A star wheel conveying mechanism, characterized in that The invention relates to a star wheel body, wherein the star wheel body includes a bottle feeding assembly, the bottle feeding assembly includes a movable layer and a fixed layer stacked with the movable layer, the movable layer has a plurality of first bottle clamping grooves on its edge, and the fixed layer has a plurality of second bottle clamping grooves on its edge, the first bottle clamping grooves and the second bottle clamping grooves are both used to clamp bottles, the first bottle clamping grooves and the second bottle clamping grooves have different notch widths, the movable layer can be extended and retracted relative to the fixed layer to drive the first bottle clamping grooves to selectively extend outside the fixed layer; Two groups of bottle feeding assemblies are spaced apart in the vertical direction, wherein the first bottle clamping groove in one group of bottle feeding assemblies corresponds one-to-one with the first bottle clamping groove in the other group of bottle feeding assemblies, and wherein the second bottle clamping groove in one group of bottle feeding assemblies corresponds one-to-one with the second bottle clamping groove in the other group of bottle feeding assemblies; The invention also includes an adjusting component, wherein the adjusting component is used to push the movable layer to extend to the outside of the fixed layer or push the movable layer to retract to the inside of the fixed layer; The adjustment assembly includes a push plate provided on one side of the movable layer and a push rod connected to the push plate at one end, and an adjustment handle is provided at one end of the push rod away from the push plate, through which the push plate can be driven to move relative to the fixed layer; The movable layer is composed of at least three movable plates, and all the movable plates in the same group of the bottle feeding assemblies are distributed in a ring shape, and one end of the movable plate is recessed with the first bottle clamping groove, and the pushing plate is composed of at least two arc-shaped pushing plate splits, each of which is connected to the pushing rod, and the movable plate is provided with a first sliding long hole corresponding to the pushing rod, and the pushing rod is slidably arranged in the first sliding long hole. When the pushing rod slides along the length direction of the first sliding long hole, the pushing plate split is driven to rotate around its arc center, and the adjusting assembly also includes a pushing pin connected to the pushing plate split, and the movable plate is provided with a second sliding long hole corresponding to the pushing pin, and the pushing pin is slidably arranged in the second sliding long hole. When the pushing plate split is driven, the pushing pin moves along the length direction of the second sliding long hole, driving the movable plate to extend or retract relative to the fixed layer.

2. The star wheel conveying mechanism according to claim 1, characterized in that: Each group of the bottle feeding assemblies corresponds to the pushing plate, the two pushing plates corresponding to the two groups of the bottle feeding assemblies are separately connected by the pushing rod, and the same pushing pin passes through the corresponding movable plates in the two groups of the bottle feeding assemblies.

3. The star wheel conveying mechanism according to claim 1, characterized in that: A guide plate is provided between two adjacent movable plates in the same group of the bottle feeding assembly. The guide plate is located on one side of the movable plate, and a guide groove for guiding the push plate is provided on the guide plate. The push plate rotates in the guide groove along the extension direction of the guide groove.

4. The star wheel conveying mechanism according to claim 1, characterized in that: The invention also includes a locking member screwed to the movable layer. The locking member is rotated to make one end of the locking member press against one side of the fixed layer to limit the expansion and contraction of the movable layer relative to the fixed layer.

5. The star wheel conveying mechanism according to any one of claims 1 to 4, characterized in that: It also includes a protection plate assembly arranged around the outer periphery of the star wheel body, and the protection plate assembly is used to limit the bottle from being separated from the first bottle clamping groove or the second bottle clamping groove.

6. A bottle feeding system, characterized in that: The invention comprises the star wheel conveying mechanism according to any one of claims 1 to 5.

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