Large-caliber cap screwing mechanism

Abstract

The utility model relates to the technical field of packaging, and discloses a large-caliber cap screwing mechanism which comprises a rotating mechanism, a clamping mechanism and a moving module. The clamping mechanism is connected with the rotating mechanism; the clamping mechanism comprises a clamping jaw assembly, a clamping driving piece and an adapter plate assembly, and the clamping jaw assembly is detachably connected with the clamping driving piece through the adapter plate assembly; the adapter plate assembly is provided with at least two mounting positions with different clamping calibers, and the clamping jaw assembly is connected to one of the mounting positions; the clamping driving piece is connected with the clamping jaw assembly, and the clamping driving piece is suitable for driving the opening and closing actions of the clamping jaw assembly; the moving module is connected with the rotating mechanism and is suitable for driving the rotating mechanism to move. According to the cap screwing mechanism, the adapter plate assemblies of different specifications can be disassembled, assembled and replaced, the cap screwing mechanism can be matched with clamping of caps of different calibers, and the universality of the cap screwing mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, in particular to a large-caliber screw-cap mechanism. Background Art

[0002] With the advancement of industrial technology, the automation technology of traditional industries has continued to develop, and manual operations have gradually been replaced by fully automatic production equipment.

[0003] In the field of material packaging and storage, there are many products with lids that need to be opened and closed. The automatic capping mechanism in the related art is for small-caliber opening and closing caps, while for opening and closing caps with larger diameters and requiring higher rotational torque, higher requirements are placed on the automatic capping mechanism. For example, in the cement industry, the lid of the sample barrel for cement sampling has a diameter of 20 cm. The conventional practice is for laboratory personnel to open and close the lid by hand. Manual operation is time-consuming and laborious, so it is necessary to provide a capping mechanism suitable for large-caliber lids.

[0004] Therefore, the existing screw-cap mechanism has a small application range, and it is necessary to provide a kind of cover that can meet the opening and closing of covers with more calibers, especially large-caliber covers. Utility Model Content

[0005] In view of this, the utility model provides a large-caliber screw-on capping mechanism to solve the problem that the existing screw-on capping mechanism is only applicable to small-caliber caps and has a small application range.

[0006] The utility model provides a large-caliber screw capping mechanism, comprising a rotating mechanism, a clamping mechanism and a moving module. The clamping mechanism is connected to the rotating mechanism; the clamping mechanism comprises a clamping claw assembly, a clamping driving member and an adapter plate assembly, the clamping claw assembly is detachably connected to the clamping driving member through the adapter plate assembly; the adapter plate assembly has at least two mounting positions with different clamping calibers, and the clamping claw assembly is connected to one of the mounting positions; the clamping driving member is connected to the clamping claw assembly, and the clamping driving member is suitable for driving the opening and closing action of the clamping claw assembly; the moving module is connected to the rotating mechanism, and the moving module is suitable for driving the rotating mechanism to move.

[0007] In an optional embodiment, the clamping jaw assembly includes at least two clamping jaws, the adapter plate assembly includes at least two adapter plates, and the clamping jaws are detachably connected to the clamping drive member through the adapter plates.

[0008] In an optional embodiment, the adapter plate includes a main body section and at least two adapter sections disposed on the main body section, and different adapter sections provide installation positions of different calibers.

[0009] In an optional embodiment, a flexible pad is provided on the clamping surface of the clamping jaw.

[0010] In an optional embodiment, the clamping surface of the flexible pad is provided with an anti-slip structure.

[0011] In an optional embodiment, it further includes a first mounting seat, which is provided with a mounting hole; the rotating mechanism includes a rotating drive member, a transmission assembly and a rotating shaft, and the rotating shaft is passed through the mounting hole; the rotating drive member is connected to the rotating shaft through the transmission assembly.

[0012] In an optional embodiment, the rotating shaft is a hollow structure, and the medium pipeline of the clamping drive member passes through the hollow inner cavity of the rotating shaft and is rotatably connected to the medium source through a slip ring.

[0013] In an optional embodiment, a second mounting seat is further included, the movable module includes a transverse movement mechanism, the transverse movement mechanism includes a transverse movement driving member and a transverse movement guiding mechanism, the first mounting seat is slidably connected to the second mounting seat through the transverse movement guiding mechanism, and the first mounting seat is connected to the transverse movement driving member.

[0014] In an optional embodiment, a third mounting seat is further included, the movable module includes a lifting mechanism, the lifting mechanism includes a lifting drive and a lifting guide mechanism; the second mounting seat is slidably connected to the third mounting seat through the lifting guide mechanism, and the second mounting seat is connected to the lifting drive.

[0015] In an optional embodiment, the clamping drive member includes a double-headed cylinder, and the clamping jaw assembly includes two clamping jaws, and the two clamping jaws are respectively connected to two piston rod ends of the double-headed cylinder.

[0016] Beneficial effects:

[0017] The large-caliber screw-on capping mechanism provided by the utility model has a clamping drive member of the clamping mechanism that drives the jaw assembly to open and close, thereby realizing the clamping and releasing of the product cover. When the jaw assembly clamps the product cover, the rotating mechanism outputs a rotating power to drive the clamping mechanism to rotate, thereby driving the rotation of the product cover to realize the opening and closing of the product cover, that is, to realize opening or packaging. The large-caliber screw-on capping mechanism provided by the utility model embodiment can replace manual labor to realize the opening and closing of large-caliber covers, saving time and effort. Since the adapter plate assembly is provided with different installation positions, the jaw assembly can adapt to covers of different calibers when connected to different installation positions, and the adapter plate assembly, the jaw assembly, and the clamping drive member can be detachably connected. Therefore, by disassembling and replacing adapter plate assemblies of different specifications, it is possible to adapt to the clamping of covers of different calibers, thereby improving the versatility of the screw-on capping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic structural diagram of a large-caliber screw-capping mechanism according to an embodiment of the utility model;

[0020] Figure 2 for Figure 1 The structural schematic diagram of the rotating mechanism in the large-caliber screw capping mechanism shown;

[0021] Figure 3 for Figure 1 The schematic diagram of the structure of the moving module in the large-diameter screw capping mechanism is shown.

[0022] Description of reference numerals:

[0023] 1. Rotating mechanism; 101. Rotating driving member; 1011. Motor plate; 1012. Motor; 102. Transmission assembly; 1021. Driving gear; 1022. Driven gear; 103. Rotating shaft; 104. Rotating bearing; 105. Fixed sleeve; 106. Sleeve; 107. Induction sheet; 108. Sensor; 2. Clamping mechanism; 201. Clamping jaw assembly; 2011. Clamping jaw; 2012. Flexible pad; 202. Clamping driving member; 203. Adapter plate assembly; 2031. Adapter section; 2032. Body section; 206, slip ring mounting plate; 207, slip ring; 3, transverse movement mechanism; 301, transverse movement driving member; 302, transverse movement guiding mechanism; 3021, guide rail; 3022, slider; 4, lifting mechanism; 401, lifting driving member; 402, lifting guiding mechanism; 4021, guide column; 4022, linear bearing; 403, connecting plate; 404, connecting column; 405, spring; 5, first mounting seat; 501, top plate; 502, vertical plate; 503, bottom plate; 504, rib plate; 6, second mounting seat; 7, third mounting seat. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0025] The existing automatic capping mechanisms for opening and closing caps are only suitable for products with small diameters. The capping mechanisms in the related art have a small load installation space and a short clamping stroke, and are only suitable for the opening and closing of small-diameter caps. When the diameter of the product cap is larger, the required rotational torque and clamping stroke will increase, while the capping mechanisms in the related art realize the opening and closing of the cap by the rotation of the friction wheel itself, and its rotational torque is small and uncontrollable. For large-diameter caps, usually, different rotational torques are required for caps of different diameters or under different working conditions. For working conditions with different rotational torque requirements, the capping mechanisms in the related art are not applicable. In addition, the opening and closing of the caps of large-diameter products require high positioning, while the capping mechanisms in the related art have poor positioning effects and are not suitable for the opening and closing of large-diameter caps.

[0026] The utility model provides a large-diameter screw-cap mechanism, which can be suitable for the opening and closing action of a large-diameter cap and further solves the above-mentioned technical problems one by one.

[0027] Combine the following Figures 1 to 3 , describing an embodiment of the utility model.

[0028] According to an embodiment of the utility model, a large-caliber screw capping mechanism is provided, comprising a rotating mechanism 1, a clamping mechanism 2 and a moving module. The clamping mechanism 2 is connected to the rotating mechanism 1, and the clamping mechanism 2 comprises a clamping jaw assembly 201, a clamping drive 202 and an adapter plate assembly 203, wherein the clamping jaw assembly 201 is detachably connected to the clamping drive 202 via the adapter plate assembly 203; the adapter plate assembly 203 has at least two mounting positions with different clamping calibers, and the clamping jaw assembly 201 is connected to one of the mounting positions; the clamping drive 202 is connected to the clamping jaw assembly 201, and the clamping drive 202 is suitable for driving the opening and closing action of the clamping jaw assembly 201; the moving module is connected to the rotating mechanism 1, and the moving module is suitable for driving the rotating mechanism 1 to move.

[0029] The large-caliber capping mechanism provided by the embodiment of the utility model, the clamping drive 202 of the clamping mechanism 2 drives the clamping claw assembly 201 to open and close, and can realize the clamping and releasing of the product cover. When the clamping claw assembly 201 clamps the product cover, the rotating mechanism 1 outputs the rotational power, drives the clamping mechanism 2 to rotate, thereby drives the rotation of the product cover, realizes the opening and closing of the product cover, that is, realizes the opening or packaging. The large-caliber capping mechanism provided by the embodiment of the utility model can replace manual opening and closing of large-caliber covers, saving time and effort. Since the adapter plate assembly 203 is set to different installation positions, the clamping claw assembly 201 can adapt to covers of different calibers when connected to different installation positions, and the adapter plate assembly 203 and the clamping claw assembly 201 and the clamping drive 202 can be detachably connected. Therefore, by disassembling and replacing adapter plate assemblies of different specifications, it can adapt to the clamping of covers of different calibers, thereby improving the versatility of the capping mechanism.

[0030] Before the clamping mechanism 2 clamps the product cover, the moving module is used to drive the rotating mechanism 1 and the clamping mechanism 2 to move, so as to realize the positioning of the clamping jaw assembly 201, so as to facilitate the clamping jaw assembly 201 to clamp the product cover.

[0031] In some embodiments, the clamping jaw assembly 201 includes at least two clamping jaws 2011 , the adapter plate assembly 203 includes at least two adapter plates, and the clamping jaws 2011 are detachably connected to the clamping driving member 202 through the adapter plates.

[0032] Specifically, the number of the clamping jaws 2011 corresponds to the number of the adapter plates. The adapter plates are provided in various specifications, and a suitable adapter plate is selected according to the caliber of the product cover so that the clamping caliber of the clamping jaw assembly 201 is adapted to the caliber of the product cover.

[0033] In some embodiments, the adapter plate assembly 203 includes a main body segment 2032 and at least two adapter segments 2031 connected to the main body segment 2032 , and different adapter segments 2031 provide installation positions of different calibers.

[0034] The clamping of large-diameter caps of different sizes can be achieved by using the clamping stroke provided by the clamping drive 202. If the clamping stroke of the clamping drive 202 does not meet the size of the large-diameter cap (too large or too small), the adapter plate assembly 203 can be replaced and the adapter section 2031 of the adapter plate assembly 203 can be installed to meet the size of the current product cap. The large-diameter capping mechanism provided in this embodiment can be suitable for the opening and closing of product caps of different diameters by replacing different adapter plate assemblies 203, thereby improving applicability.

[0035] Since the clamping jaw 2011, the clamping drive 202 and the adapter plate assembly 203 are all detachably connected, for example, by fasteners, and the two adapter sections 2031 of the adapter plate assembly 203 can provide installation positions of different calibers, adapter plate assemblies 203 of different specifications can be assembled according to the size of the product cover. One end of the adapter plate assembly 203 is connected to the clamping drive 202, and the other end of the adapter plate assembly 203 is connected to the clamping jaw 2011, so that the clamping caliber of the clamping jaw assembly 201 can be adjusted.

[0036] The adapter plate assembly 203 is a "Z"-shaped structure. The adapter plate assembly 203 can be used to increase or decrease the clamping diameter of the clamping jaw assembly 201. Figure 1 When the adapter plate assembly 203 is reversely installed, the clamping diameter of the clamping jaw assembly 201 can be reduced.

[0037] In this embodiment, if Figure 1 As shown, the clamping jaw assembly 201 is provided with two clamping jaws 2011, and the two clamping jaws 2011 are arranged opposite to each other.

[0038] In some embodiments, the clamping driving member 202 includes a double-headed cylinder, and the clamping jaw assembly 201 includes two clamping jaws 2011 , and the two clamping jaws 2011 are respectively connected to two piston rod ends of the double-headed cylinder.

[0039] The double-headed cylinder has a simple structure and is easy to control. The double-headed cylinder has a large telescopic stroke and can be suitable for clamping large-diameter covers.

[0040] In some embodiments, a flexible pad 2012 is provided on the clamping surface of the clamping jaw 2011 .

[0041] During the process of rotating the product cover, the clamping mechanism 2 clamps the product cover and the rotating mechanism 1 applies a rotational torque. The large-diameter capping mechanism provided in this embodiment provides a flexible pad 2012 on the clamping surface of the clamping jaw 2011, so that the flexible pad 2012 is in direct contact with the product cover, thereby preventing the product cover from being damaged due to the clamping force or torque.

[0042] Specifically, the flexible pad 2012 is made of polyurethane or rubber.

[0043] In some embodiments, the clamping surface of the flexible pad 2012 is provided with an anti-slip structure.

[0044] The anti-skid structure is provided on the clamping surface of the flexible pad 2012 to prevent the clamping mechanism 2 from slipping and idling during the rotation of the clamped product cover. Specifically, the anti-skid structure includes a plurality of protrusions and / or grooves, such as protruding or concave lines.

[0045] In some embodiments, the clamping surface of the clamping jaw 2011 and / or the clamping surface of the flexible pad 2012 is arc-shaped.

[0046] Since the shape of the product cover is usually round, the clamping surface of the clamping jaw 2011 and / or the clamping surface of the flexible pad 2012 is set to an arc shape, which can adapt to the outer contour of most product covers, have a higher fit, and stronger friction, and further prevent slipping and idling during clamping and rotation.

[0047] In some embodiments, it also includes a first mounting seat 5, which is provided with a mounting hole; the rotating mechanism 1 includes a rotating drive member 101, a transmission assembly 102 and a rotating shaft 103, and the rotating drive member 101 is connected to the rotating shaft 103 through the transmission assembly 102.

[0048] Specifically, the transmission assembly 102 in the rotating mechanism 1 can use a transmission member with large torque, such as a gear pair or a worm gear transmission pair, so that a large rotation torque can be provided to meet the requirements for opening and closing of large-diameter covers. The clamping drive member 202 can use a cylinder with a large stroke and a large cylinder diameter to provide a larger load installation position and a larger clamping stroke of the clamping jaw assembly, thereby meeting the requirements for opening and closing of large-diameter covers.

[0049] In some embodiments, the rotary drive member 101 includes a motor 1012, the transmission assembly 102 includes a driving gear 1021 and a driven gear 1022 meshing with each other, and the motor 1012, the driving gear 1021, the driven gear 1022 and the rotating shaft 103 are sequentially connected in transmission. Specifically, the motor 1012 is a stepping motor.

[0050] By using the motor 1012 to provide rotational torque for the opening and closing cover, the torque can be controlled by a program, making the rotational torque controllable, thereby being able to adapt to different torque demand conditions and achieving different rotational torques required by the product when opening and closing the cover.

[0051] In some embodiments, the rotating shaft 103 is a hollow structure, and the medium pipeline of the clamping driving member 202 passes through the hollow inner cavity of the rotating shaft 103 and is rotatably connected to the medium source through the slip ring 207 .

[0052] Specifically, both the clamping mechanism 2 and the rotating mechanism 1 can be arranged on the first mounting seat 5 .

[0053] In this embodiment, Figure 1 As shown, the rotary drive member 101 adopts a motor 1012, and the motor 1012 is arranged on the first mounting seat 5. A rotating bearing 104 is provided on the mounting hole of the first mounting seat 5, and the rotating shaft 103 is rotatably connected to the mounting hole through the rotating bearing 104. The rotating shaft 103 is arranged vertically, and the clamping mechanism 2 is located below the rotating shaft 103. The cylinder in the clamping mechanism 2 is connected to the lower end of the rotating shaft 103. Therefore, the rotation of the rotating shaft 103 can drive the rotation of the cylinder, and because the piston rod of the cylinder is connected to the clamping jaw assembly 201, the rotation of the clamping jaw assembly 201 and the product cover clamped therein are driven to realize the opening and closing of the cover.

[0054] Since the clamping mechanism 2 may rotate more than one circle when the large-caliber cover is rotated to open or close, the medium pipeline of the clamping drive 202 can be inserted into the hollow inner cavity of the rotating shaft 103 by setting the rotating shaft 103 as a hollow structure, so that the medium pipeline is arranged in an orderly manner and the external space occupied is reduced. The upper end of the medium pipeline is rotatably connected to the rotating end of the medium source through the slip ring 207, so that the clamping mechanism 2 can rotate without restriction and will not cause the medium pipeline to be entangled. When the clamping drive 202 adopts a cylinder, the medium pipeline refers to the air pipe.

[0055] The first mounting seat 5 includes a top plate 501 and two vertical plates 502 connected to both ends of the top plate 501 . The vertical plates 502 and the top plate 501 are reinforced by rib plates 504 . Two slip ring mounting plates 206 are installed on the vertical plates 502 , and the slip rings 207 are installed on the slip ring mounting plates 206 .

[0056] The motor 1012 is installed between the two vertical plates 502 of the first mounting seat 5 through the motor mounting plate, and a long hole is set on the motor plate 1011, and the motor 1012 can adjust the installation position. The transmission assembly 102 includes a driving gear 1021 and a driven gear 1022 that mesh with each other, and the driving gear 1021 is connected to the output shaft of the motor 1012. The first mounting seat 5 also includes a bottom plate 503, and both ends of the bottom plate 503 are connected to the lower ends of the two vertical plates 502, and the mounting holes are set on the bottom plate 503.

[0057] The rotating shaft 103 is fixed on the rotating bearing 104 through a retaining spring, a fixing sleeve 105 is installed on the upper part of the rotating shaft 103, and the driven gear 1022 is installed on the fixing sleeve 105. The motor 1012 drives the driving gear 1021 and the driven gear 1022 to rotate, thereby driving the rotating shaft 103 to rotate.

[0058] A sleeve 106 is installed on the rotating shaft 103, and the cylinder driving the clamp is connected to the sleeve 106 through a cylinder plate. An induction plate 107 is installed on the cylinder plate. In addition, a sensor 108 is provided. The sensor 108 is installed on the bottom plate 503, and the motor 1012 is controlled to stop by the signal of the sensor 108.

[0059] In some embodiments, a second mounting seat 6 is also included, the movable module includes a transverse movement mechanism 3, the transverse movement mechanism 3 includes a transverse movement driving member 301 and a transverse movement guiding mechanism 302, the first mounting seat 5 is slidably connected to the second mounting seat 6 through the transverse movement guiding mechanism 302, and the first mounting seat 5 is connected to the transverse movement driving member 301.

[0060] Driven by the transverse driving member 301 of the transverse mechanism 3, the first mounting seat 5 can slide transversely relative to the second mounting seat 6 under the guidance of the transverse guiding mechanism 302. Since the clamping mechanism 2 and the rotating mechanism 1 are both connected to the first mounting seat 5, the first mounting seat 5 can drive the clamping jaw assembly 201 to move transversely to adjust the position of the clamping jaw assembly 201 in the horizontal direction, so as to facilitate the positioning of the clamping jaw assembly 201 and the product cover.

[0061] Specifically, Figure 1 As shown, the transverse guide mechanism 302 includes a guide rail 3021 and a slider 3022 that are slidably matched, the guide rail 3021 is horizontally connected to the second mounting seat 6, and the slider 3022 is connected to the first mounting seat 5, specifically, the slider 3022 is connected to the top plate 501 of the first mounting seat 5. The transverse driving member 301 includes a driving cylinder, such as a cylinder, and the power output end of the transverse driving member 301 is connected to the slider 3022 or the first mounting seat 5, so that the first mounting seat 5 can be driven to slide in the horizontal direction relative to the second mounting seat 6, thereby driving the clamping jaw assembly 201 to move in the vertical direction.

[0062] In some embodiments, a third mounting seat 7 is also included, the movable module includes a lifting mechanism 4, the lifting mechanism 4 includes a lifting drive 401 and a lifting guide mechanism 402; the second mounting seat 6 is slidably connected to the third mounting seat 7 through the lifting guide mechanism 402, and the second mounting seat 6 is connected to the lifting drive 401.

[0063] Driven by the lifting drive member 401 of the lifting mechanism 4, the second mounting seat 6 can be lifted and slid relative to the third mounting seat 7 under the guidance of the lifting guide mechanism 402. Since the clamping mechanism 2 and the rotating mechanism 1 are both connected to the second mounting seat 6 through the transverse movement mechanism 3, the second mounting seat 6 can drive the clamping jaw assembly 201 to perform lifting and lowering movements to adjust the position of the clamping jaw assembly 201 in the vertical direction, so as to facilitate the positioning of the clamping jaw assembly 201 and the product cover.

[0064] Specifically, in one embodiment, Figure 1 As shown, the lifting guide mechanism 402 includes a guide column 4021 and a guide hole that are slidably matched, the guide column 4021 is vertically connected to the second mounting seat 6, and the guide hole is provided in the third mounting seat 7. The lifting drive member 401 includes a drive cylinder, such as a cylinder, and the power output end of the lifting drive member 401 is connected to the second mounting seat 6, so that the second mounting seat 6 can be driven to slide in the vertical direction relative to the third mounting seat 7, thereby driving the clamping jaw assembly 201 to move in the vertical direction.

[0065] Furthermore, the third mounting seat 7 is mounted on a fixed bracket of the device, a linear bearing 4022 is provided on the guide hole, and a guide column 4021 is slidably inserted into the linear bearing 4022 .

[0066] Further, in some embodiments, the lifting drive member 401 includes a lifting cylinder, the piston rod of the lifting cylinder is installed with a connecting plate 403, the connecting plate 403 is provided with a through hole, a connecting column 404 is inserted into the through hole, the connecting column 404 can slide in the through hole, and the lower end of the connecting column 404 is connected to the second mounting seat 6. A compression spring 405 is sleeved on the connecting column 404, and the lifting cylinder drives the connecting plate 403 to move up and down, thereby driving the connecting column 404 and the second mounting seat 6 to move up and down.

[0067] The large-caliber screw-capping mechanism provided by the utility model can move the clamping jaws 2011 in the vertical and horizontal directions to realize unscrewing the product cover and then removing the cover to leave space for operations such as filling and sampling the barrel.

[0068] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A large-caliber capping mechanism, characterized in that: include: Rotating mechanism (1); A clamping mechanism (2), the clamping mechanism (2) being connected to the rotating mechanism (1); the clamping mechanism (2) comprising a clamping jaw assembly (201), a clamping drive member (202) and an adapter plate assembly (203); the clamping jaw assembly (201) being detachably connected to the clamping drive member (202) via the adapter plate assembly (203); the adapter plate assembly (203) having at least two mounting positions with different clamping apertures, the clamping jaw assembly (201) being connected to one of the mounting positions; the clamping drive member (202) being connected to the clamping jaw assembly (201), the clamping drive member (202) being suitable for driving the opening and closing action of the clamping jaw assembly (201); A moving module, the moving module is connected to the rotating mechanism (1), and the moving module is suitable for driving the rotating mechanism (1) to move.

2. The large-diameter capping mechanism according to claim 1, characterized in that: The clamping jaw assembly (201) comprises at least two clamping jaws (2011), and the adapter plate assembly (203) comprises at least two adapter plates, and the clamping jaws (2011) are detachably connected to the clamping drive member (202) via the adapter plates.

3. The large-diameter capping mechanism according to claim 2, characterized in that: The adapter plate comprises a main body section (2032) and at least two adapter sections (2031) arranged on the main body section (2032), and different adapter sections (2031) provide installation positions of different calibers.

4. The large-diameter capping mechanism according to claim 2 or 3, characterized in that: The clamping surface of the clamping jaw (2011) is provided with a flexible pad (2012).

5. The large-diameter capping mechanism according to claim 4, characterized in that: The clamping surface of the flexible pad (2012) is provided with an anti-slip structure.

6. The large-diameter cap screwing mechanism according to any one of claims 1 to 3, characterized in that: The invention also comprises a first mounting seat (5), wherein the first mounting seat (5) is provided with a mounting hole; the rotating mechanism (1) comprises a rotating drive member (101), a transmission assembly (102) and a rotating shaft (103), wherein the rotating shaft (103) is passed through the mounting hole; and the rotating drive member (101) is connected to the rotating shaft (103) by transmission via the transmission assembly (102).

7. The large-diameter capping mechanism according to claim 6, characterized in that: The rotating shaft (103) is a hollow structure, and the medium pipeline of the clamping drive member (202) passes through the hollow inner cavity of the rotating shaft (103) and is rotatably connected to the medium source through a slip ring (207).

8. The large-diameter capping mechanism according to claim 6, characterized in that: It also includes a second mounting seat (6), the movable module includes a transverse movement mechanism (3), the transverse movement mechanism (3) includes a transverse movement driving member (301) and a transverse movement guiding mechanism (302), the first mounting seat (5) is slidably connected to the second mounting seat (6) via the transverse movement guiding mechanism (302), and the first mounting seat (5) is connected to the transverse movement driving member (301).

9. The large-caliber capping mechanism according to claim 8, characterized in that: It also includes a third mounting seat (7), the movable module includes a lifting mechanism (4), and the lifting mechanism (4) includes a lifting drive member (401) and a lifting guide mechanism (402); the second mounting seat (6) is slidably connected to the third mounting seat (7) via the lifting guide mechanism (402), and the second mounting seat (6) is connected to the lifting drive member (401).

10. The large-diameter cap screwing mechanism according to any one of claims 1 to 3, characterized in that: The clamping drive member (202) comprises a double-headed cylinder, and the clamping jaw assembly (201) comprises two clamping jaws (2011), wherein the two clamping jaws (2011) are respectively connected to two piston rod ends of the double-headed cylinder.

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