Fixed brackets and tobacco packaging production line

Abstract

This application discloses a fixed support and a tobacco packaging production line, relating to the field of auxiliary devices for tobacco production. The fixed support includes a support arm, a cantilever, a first joint, a second joint, and a fixing member. The first joint connects the support arm and the cantilever, and is rotatably connected to the support arm so that it rotates in a plane perpendicular to the support arm. The cantilever is hinged to the first joint, allowing it to swing about the first joint as a fulcrum. The second joint connects the cantilever and the fixing member, and is rotatably connected to the cantilever so that it rotates in a plane perpendicular to the cantilever. The fixing member is hinged to the second joint, allowing it to swing about the second joint as a fulcrum. The fixed support provided by this application enables flexible movement of the barcode reader with multiple degrees of freedom, facilitating precise adjustment of the reader's spatial position and angle.

Description

Technical Field

[0001] This application relates to the field of auxiliary equipment technology for tobacco production, and in particular to a fixed support and a tobacco packaging production line. Background Technology

[0002] In automated tobacco packaging production lines, barcode readers are key identification devices that need to perform high-speed and accurate identification of the QR codes on the surface of cigarette boxes and cartons in order to achieve the association and binding of the QR codes on the boxes and cartons.

[0003] The currently used fixed mounting brackets cannot achieve precise posture control under multi-degree-of-freedom motion conditions. Utility Model Content

[0004] In view of this, this application provides a fixed bracket and a tobacco packaging production line, which aims to solve one of the technical problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, this application provides a fixing bracket, comprising:

[0007] Support arm;

[0008] cantilever;

[0009] A first joint member connects the support arm and the cantilever. The first joint member is rotatably connected to the support arm so that the first joint member can rotate in a plane perpendicular to the support arm. The cantilever is hinged to the first joint member so that the cantilever can swing about the first joint member as a fulcrum.

[0010] A second joint and a fixing member are provided. The second joint connects the cantilever and the fixing member. The second joint is rotatably connected to the cantilever so that the second joint rotates in a plane perpendicular to the cantilever. The fixing member is hinged to the second joint so that the fixing member swings about the second joint as a fulcrum.

[0011] In an optional embodiment, the number of cantilever arms is at least one, the number of first joint members is the same as the number of cantilever arms, and one first joint member connects one cantilever arm and one support arm.

[0012] The number of the fixing members is at least one, and the number of the second joint members is the same as the number of the fixing members. One second joint member connects one fixing member and one cantilever.

[0013] In an optional implementation, the support arm includes:

[0014] Base;

[0015] Basic poles;

[0016] A first extension rod and a second extension rod, one end of the base rod is connected to the base, and the other end is connected to either the first extension rod or the second extension rod. There are at least one first extension rod and at least one second extension rod. The first extension rod and the second extension rod are alternately connected to extend the support arm.

[0017] In an optional embodiment, the first joint member includes:

[0018] The first rotating connection part is arc-shaped and is arranged around the outside of the first extension rod body. The first rotating connection part can rotate relative to the first extension rod body.

[0019] The first snap-fit ​​portion has a plurality of spaced first connecting holes along the circumference of the first extension rod. The first rotating connecting portion has a second connecting hole. The first snap-fit ​​portion passes through the second connecting hole and connects with any of the first connecting holes to fix the first rotating connecting portion and the first extension rod.

[0020] In an optional embodiment, the first joint further includes a first hinge rod, which is connected to the first rotating connection portion to form a closed first annular structure.

[0021] In an optional implementation, the cantilever includes:

[0022] The main rod body includes a connecting seat and a rod body, and the connecting seat is connected to the first hinge rod;

[0023] The third and fourth extension rods are connected, with one end of the rod body connected to the connecting seat and the other end connected to either the third or fourth extension rod. The second joint is connected to the fourth extension rod.

[0024] In an optional embodiment, the number of the third extension rod and the fourth extension rod is at least one, and the third extension rod and the fourth extension rod are alternately connected to extend the cantilever.

[0025] In an optional embodiment, the second joint member includes:

[0026] The second rotating connection part is arc-shaped and is arranged around the outside of the second extension rod. The second rotating connection part can rotate relative to the second extension rod.

[0027] The second snap-fit ​​part has a plurality of spaced third connecting holes along the circumference of the fourth extension rod. The second rotating connecting part has a fourth connecting hole. The second snap-fit ​​part passes through the fourth connecting hole and connects with any of the second connecting holes to fix the second rotating connecting part and the fourth extension rod.

[0028] The second hinge rod and the second rotating connection part are connected to form a closed second ring structure.

[0029] In an optional embodiment, the fastener includes:

[0030] A rotating part, which is connected to the second hinge rod, rotates in a plane parallel to the cantilever;

[0031] The shock-absorbing part is hinged to the rotating part, the shock-absorbing part rotates in a plane parallel to the cantilever, and the rotation plane of the rotating part is perpendicular to the rotation plane of the shock-absorbing part;

[0032] The clamping part is fixedly connected to the side of the shock-absorbing part away from the rotating part.

[0033] Secondly, this application provides a tobacco packaging production line, including the fixed bracket described in any of the foregoing embodiments.

[0034] Compared to existing technologies, the advantages of this application are as follows: This application proposes a fixed bracket, including a support arm, a cantilever, a first joint member, a second joint member, and a fixing member. The first joint member connects the support arm and the cantilever, and is rotatably connected to the support arm so that it rotates in a plane perpendicular to the support arm. The cantilever is hinged to the first joint member so that it swings about the first joint member as a fulcrum. The second joint member connects the cantilever and the fixing member, and is rotatably connected to the cantilever so that it rotates in a plane perpendicular to the cantilever. The fixing member is hinged to the second joint member so that it swings about the second joint member as a fulcrum. By connecting the barcode reader to the fixing member and driving the cantilever to rotate via the first joint member, the cantilever swings relative to the support arm, and the fixing member swings relative to the cantilever, achieving flexible movement of the barcode reader with multiple degrees of freedom, facilitating precise adjustment of the barcode reader's spatial position and angle. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This application shows a schematic diagram of the assembly structure of the fixed bracket and a single barcode reader in some embodiments;

[0037] Figure 2 The following is a schematic diagram of the assembly structure of the fixed bracket and two barcode readers in some embodiments of this application;

[0038] Figure 3 An exploded structural diagram of the support arm is shown in some embodiments of this application;

[0039] Figure 4 The diagram shows an exploded structural schematic of the first joint and the cantilever in some embodiments of this application;

[0040] Figure 5 A schematic diagram of the assembly structure of the second joint member and the fixing member in some embodiments of this application is shown;

[0041] Figure 6 The following are schematic diagrams illustrating the structure of the first joint member or the second joint member in some embodiments of this application;

[0042] Figure 7 The following are schematic diagrams of the rotating part in some embodiments of this application;

[0043] Figure 8 The following are schematic diagrams of the structure of the shock-absorbing part in some embodiments of this application;

[0044] Figure 9 The diagram shows a structural schematic of the first or fourth extension rod in some embodiments of this application.

[0045] Key component symbols: 100-Fixed bracket; 200-Code reader; 110-Support arm; 111-Base; 112-Base rod; 113-First extension rod; 114-Second extension rod; 120-First joint; 121-First rotating connection; 122-First snap-fit; 1131-Mounting strap; 11311-First connecting hole; 1211-Second connecting hole; 123-First hinge rod; 130-Cantilever; 131 - Main rod body; 1311 Connecting seat; 1312 Rod body; 132 Third extension rod body; 133 Fourth extension rod body; 140 Second joint; 141 Second rotating connection part; 142 Second snap-fit ​​part; 143 Second hinge rod; 1331 Third connecting hole; 1411 Fourth connecting hole; 150 Fixing part; 151 Rotating part; 152 Shock-absorbing part; 1521 Spring; 153 Clamping part; 1511 Mounting hole. Detailed Implementation

[0046] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] like Figure 1As shown, an embodiment of this application provides a fixed bracket 100, mainly used to fix the barcode reader 200 and realize the multi-degree-of-freedom movement of the barcode reader 200. The fixed bracket 100 includes a support arm 110, a cantilever 130, a first joint member 120, a second joint member 140, and a fixing member 150.

[0052] The first joint 120 connects the support arm 110 and the cantilever 130. The first joint 120 is rotatably connected to the support arm 110 so that the first joint 120 can rotate in a plane perpendicular to the support arm 110. The cantilever 130 is hinged to the first joint 120 so that the cantilever 130 swings with the first joint 120 as the fulcrum. The second joint 140 connects the cantilever 130 and the fixing member 150. The second joint 140 is rotatably connected to the cantilever 130 so that the second joint 140 can rotate in a plane perpendicular to the cantilever 130. The fixing member 150 is hinged to the second joint 140 so that the fixing member 150 swings with the second joint 140 as the fulcrum. The barcode reader 200 is connected to the fixing member 150, and the cantilever 130 is rotated through the first joint member 120. The cantilever 130 swings relative to the support arm 110, and the fixing member 150 swings relative to the cantilever 130, realizing the flexible movement of the barcode reader 200 with multiple degrees of freedom, which facilitates the precise adjustment of the spatial position and angle of the barcode reader 200.

[0053] In some embodiments, the number of cantilever 130 is at least one, the number of first joint members 120 is the same as the number of cantilever 130, and one first joint member 120 connects one cantilever 130 and the support arm 110; the number of fixing members 150 is at least one, the number of second joint members 140 is the same as the number of fixing members 150, and one second joint member 140 connects one fixing member and the cantilever 130. For example... Figure 2 As shown, each cantilever 130 is connected to a barcode reader 200, and the position of each barcode reader 200 can be flexibly adjusted through each cantilever 130, thus expanding the adaptability of barcode reading equipment in tobacco automated production lines.

[0054] In some embodiments, the support arm 110 includes a base 111, a base rod 112, a first extension rod 113, and a second extension rod 114.

[0055] like Figure 1 and Figure 3 As shown, one end of the base rod 112 is connected to the base 111, and the other end is connected to either the first extension rod 113 or the second extension rod 114. There is at least one first extension rod 113 and at least one second extension rod 114. The first extension rod 113 and the second extension rod 114 are connected alternately to extend the support arm 110.

[0056] In this embodiment, the base rod 112 and the base 111 are fixedly connected by a pin. A threaded hole is formed at the end of the base rod 112 furthest from the base 111. One end of the first extension rod 113 is provided with a threaded rod, and the other end with a threaded hole. One end of the second extension rod 114 is also provided with a threaded rod, and the other end with a threaded hole. The dimensions of the threaded rods and threaded holes of the base rod 112, the first extension rod 113, and the second extension rod 114 are matched, thereby enabling the alternating connection of the first extension rod 113 and the second extension rod 114 to extend the support arm 110.

[0057] The system adopts a construction mode of "basic pole 112 + extension pole" and achieves vertical stacking and expansion through a unified interface. Users can freely combine extension poles according to the complex installation environment of different barcode readers 200, so as to achieve precise adjustment of the spatial degree of freedom of barcode readers 200 and flexibly adjust the length of support arm 110, simplifying the assembly process.

[0058] In addition, the construction mode of "basic pole 112 + extension pole" can significantly shorten the equipment maintenance and production line transformation time, and help maintenance personnel to build the shortest path for maintenance operations.

[0059] In some embodiments, the first joint 120 includes a first rotatable connection portion 121 and a first snap-fit ​​portion 122.

[0060] like Figure 1 and Figure 6 As shown, the first rotating connection part 121 is arc-shaped and is arranged around the outside of the first extension rod 113. The first rotating connection part 121 can rotate relative to the first extension rod 113.

[0061] The first extension rod 113 is also used to connect the first joint member 120.

[0062] A plurality of spaced first connecting holes 11311 are provided along the circumference of the first extending rod 113. In one embodiment, as shown... Figure 9 As shown, multiple mounting strips 1131 are also provided in the circumferential direction of the first extension rod 113. The mounting strips 1131 surround the circumference of the first extension rod 113, and multiple first connecting holes 11311 are provided on the mounting strips 1131.

[0063] like Figure 1 and Figure 6 As shown, the first rotating connecting part 121 is provided with a second connecting hole 1211, and the first snap-fit ​​part 122 passes through the second connecting hole 1211 and is connected to any of the first connecting holes 11311 to fix the first rotating connecting part 121 and the first extension rod. For example, the first connecting hole 11311 and the second connecting hole 1211 are threaded holes, and the first snap-fit ​​part 122 is a screw.

[0064] When installing the first joint 120, adjust the orientation of the first joint 120 according to the preset installation position of the barcode reader 200 (e.g., Figure 2 In the middle, the first joint 120 of the lower cantilever 130 faces to the left, and the first joint 120 of the upper cantilever 130 faces to the right. The first joint 120 and the first extension rod 113 are fixed by the first connecting part.

[0065] In some embodiments, such as Figure 6 As shown, the first joint 120 also includes a first hinge rod 123, which is connected to the first rotating connection part 121 to form a closed first ring structure, making the connection structure between the first joint 120 and the first extension rod 113 more compact.

[0066] In some embodiments, the cantilever 130 includes a main rod 131, a third extension rod 132, and a fourth extension rod 133.

[0067] like Figure 4 As shown, the main rod 131 includes a connecting seat 1311 and a rod body 1312. The connecting seat 1311 is connected to the first hinge rod 123; one end of the rod body 1312 is connected to the connecting seat 1311, and the other end is connected to the third extension rod 132 (as shown). Figure 2 The lower cantilever 130) or the fourth extension rod 133 (such as Figure 2 The upper cantilever 130 is connected to the middle, and the second joint 140 is connected to the fourth extension rod 133.

[0068] A threaded hole is provided at the end of the rod body 1312 away from the connecting seat 1311. A threaded rod is provided at one end of the third extension rod 132 and a threaded hole is provided at the other end. A threaded rod is provided at one end of the fourth extension rod 133 and a threaded hole is provided at the other end. The dimensions of the threaded rods and threaded holes of the rod body 1312, the third extension rod 132 and the fourth extension rod 133 are matched, thereby realizing the function of alternating connection of the third extension rod 132 and the fourth extension rod 133 to extend the cantilever 130.

[0069] The system adopts a "main rod 131 + extension rod" construction mode, and achieves horizontal stacking and expansion through a unified interface. Users can freely combine the extension rods according to the complex installation environment of different barcode readers 200, so as to achieve precise adjustment of the spatial degree of freedom of the barcode reader 200 and flexibly adjust the length of the support arm 110, simplifying the assembly process.

[0070] In addition, the "main rod 131 + extension rod" construction mode can significantly shorten the equipment maintenance and production line transformation time, and help maintenance personnel build the shortest path for maintenance operations.

[0071] In some embodiments, there are at least one third extension rod 132 and a fourth extension rod 133, which are alternately connected to extend the cantilever 130.

[0072] In this embodiment, the first extension rod 113 and the fourth extension rod 133 have the same structure, which reduces the production cost.

[0073] It needs to be explained, such as Figure 2 As shown, the third extension rod 132 and the second extension rod 114 have different lengths, and the axial dimension of the third extension rod 132 is larger than that of the second extension rod 114. When the threaded assembly dimensions are compatible, the second extension rod 114 and the third extension rod 132 can be used interchangeably or in combination in the support arm 110 and the cantilever 130 (e.g., 1 and 1). Figure 2 (The lower cantilever).

[0074] In some embodiments, the third extension rod 132 may be made of a lightweight material, such as plastic, which is lightweight and has high mechanical strength.

[0075] In some embodiments, the second joint 140 includes a second rotatable connection portion 141, a second snap-fit ​​portion 142, and a second hinge rod 143.

[0076] In this embodiment, the first joint 120 and the second joint 140 have the same structure, which reduces the production cost.

[0077] like Figure 5 and Figure 6 As shown, the second rotating connecting part 141 is arc-shaped and surrounds the outer side of the second extending rod 114. The second rotating connecting part 141 can rotate relative to the second extending rod 114. A plurality of spaced third connecting holes 1331 are provided along the circumference of the fourth extending rod 133. The second rotating connecting part 141 is provided with a fourth connecting hole 1411. The second snap-fit ​​part 142 passes through the fourth connecting hole 1411 and connects with any of the second connecting holes 1211 to fix the second rotating connecting part 141 and the fourth extending rod 133. The second hinge rod 143 and the second rotating connecting part 141 are connected to form a closed second ring structure.

[0078] Existing barcode readers are typically mounted on fixed brackets to ensure their positional stability and accuracy. These fixed brackets are simple in design, easy to install and maintain, and can meet basic static operating requirements.

[0079] In actual production environments, production line equipment often experiences various vibrations and shocks, especially under high-speed operation or load variations. These vibrations not only cause blurred images from the barcode reader, affecting recognition accuracy, but can also cause continuous mechanical stress on the reader's internal components, thus shortening its lifespan. Furthermore, fixed brackets, lacking shock absorption units, suffer from overloaded overall structural rigidity and insufficient flexibility, making it difficult for barcode readers to balance stability and adjustment sensitivity under dynamic operating conditions, and thus unable to effectively adapt to complex and changing working environments.

[0080] To address the aforementioned issues, the fastener 150 of this application includes a rotating part 151, a shock-absorbing part 152, and a clamping part 153.

[0081] like Figure 5 and Figure 7 As shown, the rotating part 151 is connected to the second hinge rod 143, and the rotating part 151 rotates in the plane of the parallel cantilever 130. The rotating part 151 has a mounting hole 1511 for the second hinge rod 143 to pass through. The rotating part 151 is generally U-shaped, and its two protruding ends are hinged to the shock-absorbing part 152.

[0082] like Figure 8 As shown, the shock-absorbing part 152 and the rotating part 151 are hinged by a rotating shaft. The shock-absorbing part 152 rotates in the plane of the parallel cantilever 130, and the rotation plane of the rotating part 151 is perpendicular to the rotation plane of the shock-absorbing part 152, so as to achieve precise adjustment of the spatial degree of freedom of the code reader 200.

[0083] like Figure 5 and Figure 8 As shown, the shock-absorbing part 152 is equipped with multiple springs 1521, and the clamping part 153 is fixedly connected to the side of the shock-absorbing part 152 away from the rotating part 151. The clamping part 153 is used to fix the barcode reader 200. By connecting the clamping part 153 to the shock-absorbing part 152, and through the dynamic coupling design of the composite shock-absorbing system and the rigid base, the scanning stability under complex vibration environments is improved, and the interference of vibration on the optical recognition accuracy is eliminated. This allows the barcode reader 200 to balance stability and adjustment sensitivity under dynamic operating conditions, effectively adapting to complex and changing working environments.

[0084] The assembly process of the fixed bracket 100 in this application is as follows:

[0085] Support arm 110 installation: When in use, according to the installation position of the barcode reader 200, fix the fastener 150 to the production equipment, and connect the base 111 and the base rod 112 with screws to form a primary support structure. According to actual needs, select the first extension rod 113, the second extension rod 114 and the third extension rod 132 to axially extend the base rod 112.

[0086] Cantilever 130 installation: When the installation position of the barcode reader 200 does not meet the requirements, the first joint 120 is selected to connect the first extension rod 113 and dock with the support arm 110; and according to actual needs, the first extension rod 113, the second extension rod 114 and the third extension rod 132 are selected to axially extend the main rod 131.

[0087] Installation of fastener 150: When the installation position of the barcode reader 200 meets the requirements, the second joint 140 is selected to connect to the fourth extension rod 133, which is connected to the shock absorption part 152 via the rotating part 151, and finally the barcode reader 200 is positioned by the clamping part 153; according to the installation position requirements of the barcode reader 200, each connecting part is precisely adjusted so that the barcode reader 200 is in the optimal position angle state.

[0088] This application also provides a tobacco packaging production line, including the fixing bracket 100 in any of the above embodiments, and therefore has all the beneficial effects of the fixing bracket 100 in any of the above embodiments, which will not be described in detail here.

[0089] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0090] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A fixed bracket, characterized in that, include: Support arm; cantilever; A first joint member connects the support arm and the cantilever. The first joint member is rotatably connected to the support arm so that the first joint member can rotate in a plane perpendicular to the support arm. The cantilever is hinged to the first joint member so that the cantilever can swing about the first joint member as a fulcrum. A second joint and a fixing member are provided. The second joint connects the cantilever and the fixing member. The second joint is rotatably connected to the cantilever so that the second joint rotates in a plane perpendicular to the cantilever. The fixing member is hinged to the second joint so that the fixing member swings about the second joint as a fulcrum.

2. The fixing bracket according to claim 1, characterized in that, The number of cantilever arms is at least one, the number of first joint components is the same as the number of cantilever arms, and one first joint component connects one cantilever arm and one support arm. The number of the fixing members is at least one, and the number of the second joint members is the same as the number of the fixing members. One second joint member connects one fixing member and one cantilever.

3. The fixing bracket according to claim 1, characterized in that, The support arm includes: Base; Basic poles; A first extension rod and a second extension rod, one end of the base rod is connected to the base, and the other end is connected to either the first extension rod or the second extension rod. There are at least one first extension rod and at least one second extension rod. The first extension rod and the second extension rod are alternately connected to extend the support arm.

4. The fixing bracket according to claim 3, characterized in that, The first joint component includes: The first rotating connection part is arc-shaped and is arranged around the outside of the first extension rod body. The first rotating connection part can rotate relative to the first extension rod body. The first snap-fit ​​portion has a plurality of spaced first connecting holes along the circumference of the first extension rod. The first rotating connecting portion has a second connecting hole. The first snap-fit ​​portion passes through the second connecting hole and connects with any of the first connecting holes to fix the first rotating connecting portion and the first extension rod.

5. The fixing bracket according to claim 4, characterized in that, The first joint further includes a first hinge rod, which is connected to the first rotating connection to form a closed first ring structure.

6. The fixing bracket according to claim 5, characterized in that, The cantilever includes: The main rod body includes a connecting seat and a rod body, and the connecting seat is connected to the first hinge rod; The third and fourth extension rods are connected, with one end of the rod body connected to the connecting seat and the other end connected to either the third or fourth extension rod. The second joint is connected to the fourth extension rod.

7. The fixing bracket according to claim 6, characterized in that, The number of the third extension rod and the fourth extension rod is at least one, and the third extension rod and the fourth extension rod are alternately connected to extend the cantilever.

8. The fixing bracket according to claim 6, characterized in that, The second joint component includes: The second rotating connection part is arc-shaped and is arranged around the outside of the second extension rod body. The second rotating connection part can rotate relative to the second extension rod body. The second snap-fit ​​part has a plurality of spaced third connecting holes along the circumference of the fourth extension rod. The second rotating connecting part has a fourth connecting hole. The second snap-fit ​​part passes through the fourth connecting hole and connects with any of the second connecting holes to fix the second rotating connecting part and the fourth extension rod. The second hinge rod and the second rotating connection part are connected to form a closed second ring structure.

9. The fixing bracket according to claim 8, characterized in that, The fastener includes: A rotating part, which is connected to the second hinge rod, rotates in a plane parallel to the cantilever; The shock-absorbing part is hinged to the rotating part, the shock-absorbing part rotates in a plane parallel to the cantilever, and the rotation plane of the rotating part is perpendicular to the rotation plane of the shock-absorbing part; The clamping part is fixedly connected to the side of the shock-absorbing part away from the rotating part.

10. A tobacco packaging production line, characterized in that, Includes the fixed bracket as described in any one of claims 1 to 9.

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