Tightening capping devices and hose tightening capping equipment

Abstract

The present invention discloses a cap twisting device and a hose cap twisting equipment. The hose cap twisting equipment comprises a cap twisting device, which comprises a fixed seat, a clamping jaw mechanism and a transmission assembly. The fixed seat is fixedly connected with a first driver and a second driver. The clamping jaw mechanism comprises a main body seat, a clamping jaw assembly and a third driver. The main body seat is slidably arranged on the fixed seat and connected with the first driver. The clamping jaw assembly is rotatably connected with the main body seat. The third driver is arranged on the main body seat and is drivably connected with the clamping jaw assembly. The first driver can drive the clamping jaw mechanism to move. The third driver can drive the clamping jaw assembly to open and close so that the clamping jaw assembly can clamp the cover body. The transmission assembly is respectively connected with the second driver and the clamping jaw assembly. The second driver can drive the clamping jaw assembly to rotate through the transmission assembly. The present invention has a simple and reasonable structure, a compact structure, and a small space volume required for movement, which is convenient for production and application.

Description

Technical Field

[0001] The invention relates to the field of production equipment, in particular to a cap twisting device and a hose cap twisting device. Background Art

[0002] The existing hose capping equipment involves grasping, moving and rotating the cap body, and the movements are relatively complicated. Therefore, the capping part is generally operated by a robot. The existing capping devices have a relatively complex structure, a large volume of the mechanical moving part, a large volume of the moving space required and a large volume of the space occupied by the device itself, resulting in a large area of ​​production site occupied, which is not convenient for production application. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a cap twisting device, which has a simple and reasonable structure, wherein the second driver drives the clamping claw assembly to rotate through the transmission assembly, which helps to reduce the overall movement volume of the device, has a compact structure, and requires a small space volume for movement, which is convenient for production and application.

[0004] The invention also provides a hose cap-twisting device having the cap-twisting device.

[0005] According to the first aspect of the present invention, the twist cover device described in the embodiment includes a fixed seat, a clamping mechanism and a transmission assembly, the fixed seat is fixedly connected with a first driver and a second driver, the clamping mechanism includes a main body seat, a clamping assembly and a third driver, the main body seat is slidably arranged on the fixed seat and is connected to the first driver, the clamping assembly is rotatably connected to the main body seat, the third driver is arranged on the main body seat and is drivably connected to the clamping assembly, the first driver can drive the clamping mechanism to move, the third driver can drive the clamping assembly to open and close, so that the clamping assembly can clamp the cover body, the transmission assembly is respectively connected to the second driver and the clamping assembly, and the second driver can drive the clamping assembly to rotate through the transmission assembly.

[0006] The twist cover device according to the embodiment of the present invention has at least the following beneficial effects: when in use, the third driver drives the clamping claw assembly to open and close so as to clamp and grab the cover body, the first driver drives the clamping claw mechanism to move to the hose, and the second driver drives the clamping claw assembly to rotate through the transmission assembly, thereby realizing twisting the cover body onto the hose, and the structure is simple and reasonable. By setting the transmission assembly, the first driver and the second driver are both fixedly connected to the fixed seat, which helps to reduce the number of drivers that generate position movement, thereby helping to reduce the overall movement volume of the device. The clamping claw mechanism is the main moving part of the device, and its structure is more compact and the space required for movement is smaller, which is convenient for production and application.

[0007] According to some embodiments of the present invention, the transmission assembly includes a driving shaft, a transmission seat, a driving wheel and a driven wheel, the driving shaft is connected to the second driver, the transmission seat is movably mounted on the driving shaft and connected to the main body seat, the driving wheel is rotatably connected to the transmission seat and connected to the driving shaft, the driven wheel is connected to the clamping jaw assembly and is transmission-connected to the driving wheel, the second driver can drive the driving shaft to rotate, the driving shaft can drive the driving wheel to rotate, the main body seat can drive the transmission seat to move so that the driving wheel can move along the driving shaft, and the driving wheel can drive the clamping jaw assembly to rotate through the driven wheel.

[0008] According to some embodiments of the present invention, the jaw assembly includes a jaw seat, a pushing member, a jaw member and an elastic member, the jaw seat is rotatably connected to the main body seat, the jaw member is rotatably connected to the jaw seat and is provided with a clamping portion, the elastic member acts on the jaw member, the jaw member is provided with at least two and is evenly spaced along the circumference of the jaw seat, the third driver is drivably connected to the pushing member and can drive the pushing member to move relative to the jaw seat, the pushing member is respectively in contact with each of the jaw members and can drive the jaw member to rotate to overcome the force of the elastic member, and each of the clamping portions can approach toward or move away from each other as each of the jaw members rotates.

[0009] According to some embodiments of the present invention, two clamping jaws are provided, and the two clamping jaws are symmetrically arranged along the rotation axis of the clamping jaw seat. The elastic member is a spring and is located between the two clamping jaws. Each of the clamping jaws is provided with a connecting hole for inserting the end of the elastic member. The lower part of the pushing member is inserted between the two clamping jaws and respectively abuts against the two clamping jaws through an inclined surface.

[0010] According to some embodiments of the present invention, the clamping portion and the clamping jaw member are detachably connected.

[0011] According to some embodiments of the present invention, the clamping jaw mechanism further comprises a connecting member, the pushing member is rotatably connected to the connecting member, and the third driver is drivingly connected to the connecting member and can drive the pushing member to move relative to the clamping jaw seat through the connecting member.

[0012] According to some embodiments of the present invention, a guide member is provided on the connecting member, a guide groove is provided on the main body seat corresponding to the guide member, and the guide member is slidably matched with the guide groove.

[0013] According to some embodiments of the present invention, the clamping mechanism also includes a moving seat, a buffer member is arranged between the moving seat and the main body seat, the first driver is drivingly connected to the moving seat and can drive the moving seat to move relative to the fixed seat, and the moving seat can drive the main body seat to move.

[0014] According to some embodiments of the present invention, a screw mechanism is provided on the fixed seat, and the first driver and the movable seat are connected via the screw mechanism.

[0015] The hose cap-twisting device according to the second embodiment of the present invention comprises the cap-twisting device according to the first embodiment of the present invention.

[0016] The hose cap twisting device according to the embodiment of the present invention has at least the following beneficial effects: by adopting the above-mentioned cap twisting device, its structure is simple and reasonable, the structure is compact and the space volume required for movement is small, which helps to reduce the space volume occupied by the hose cap twisting device and is convenient for production and application.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of a cover twisting device according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic structural diagram of the middle twist cover device from another perspective;

[0021] Figure 3 for Figure 1 One of the cross-sectional structural diagrams of the middle twist cover device;

[0022] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0023] Figure 5 for Figure 1 The second schematic diagram of the cross-sectional structure of the middle twist cover device;

[0024] Figure 6 for Figure 5 Schematic diagram of the structure of the middle clamping jaw mechanism in use.

[0025] Reference numerals:

[0026] A fixing seat 100, a first driver 110, a second driver 120, and a screw mechanism 130;

[0027] The clamping mechanism 200, the main body seat 210, the guide groove 211, the clamping assembly 220, the clamping seat 221, the pushing member 222, the clamping member 223, the elastic member 224, the clamping portion 225, the connecting hole 226, the third driver 230, the moving seat 240, the buffer member 250, the connecting member 260, and the guiding member 270;

[0028] Transmission assembly 300 , driving shaft 310 , transmission seat 320 , driving wheel 330 , driven wheel 340 , synchronous belt 350 . DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it is necessary to understand that if it involves orientation description, the orientation or position relationship indicated, such as up, down, etc., is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present invention, if the words such as several, greater than, less than, exceed, above, below, within, etc. appear, among which, several means one or more, more means more than two, greater than, less than, exceed, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself.

[0032] If the first and second are described, they are only used to distinguish the technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference Figure 1 , Figure 2 and Figure 3A twist cover device includes a fixed base 100, a clamping jaw mechanism 200 and a transmission assembly 300. The fixed base 100 is fixedly connected with a first driver 110 and a second driver 120. The clamping jaw mechanism 200 includes a main body base 210, a clamping jaw assembly 220 and a third driver 230. The main body base 210 is slidably arranged on the fixed base 100 and connected with the first driver 110. The clamping jaw assembly 220 is rotatably connected to the main body base 210. The third driver 230 is arranged on the main body base 210 and is drivingly connected to the clamping jaw assembly 220. The first driver 110 can drive the clamping jaw mechanism 200 to move, and the third driver 230 can drive the clamping jaw assembly 220 to open and close, so that the clamping jaw assembly 220 can clamp the cover body. The transmission assembly 300 is respectively connected to the second driver 120 and the clamping jaw assembly 220, and the second driver 120 can drive the clamping jaw assembly 220 to rotate through the transmission assembly 300.

[0035] It is understandable that if Figure 1 , Figure 2 and Figure 3 As shown, the first driver 110 is fixedly connected to the upper part of the fixing seat 100, the main body seat 210 is slidably connected to one side of the fixing seat 100 and connected to the first driver 110, the second driver 120 is fixedly connected to the other side of the fixing seat 100, and the second driver 120 is connected to the clamping claw assembly 220 through the transmission assembly 300. When in use, the third driver 230 drives the clamping claw assembly 220 to open and close so as to be able to clamp and grab the cover body, the first driver 110 drives the clamping claw mechanism 200 to move to the hose, and the second driver 120 drives the clamping claw assembly 220 to rotate through the transmission assembly 300, so as to achieve the cover body being twisted onto the hose, and the structure is simple and reasonable. By setting the transmission assembly 300, the first driver 110 and the second driver 120 are both fixedly connected to the fixing seat 100, which helps to reduce the number of drivers that produce position movement, thereby helping to reduce the overall movement volume of the device. The clamping claw mechanism 200 is the main moving part of the device, and its structure is more compact and the space required for movement is small, which is convenient for production and application. In actual application, the specific structures of the clamping jaw assembly 220 and the transmission assembly 300 can be set accordingly according to actual use requirements, and will not be described in detail here, but will be described in detail below.

[0036] In some embodiments, the transmission assembly 300 includes a driving shaft 310, a transmission seat 320, a driving wheel 330 and a driven wheel 340. The driving shaft 310 is connected to the second driver 120, the transmission seat 320 is movably mounted on the driving shaft 310 and connected to the main body seat 210, the driving wheel 330 is rotationally connected to the transmission seat 320 and connected to the driving shaft 310, the driven wheel 340 is connected to the clamping jaw assembly 220 and is transmission-connected to the driving wheel 330, the second driver 120 can drive the driving shaft 310 to rotate, the driving shaft 310 can drive the driving wheel 330 to rotate, the main body seat 210 can drive the transmission seat 320 to move, so that the driving wheel 330 can move along the driving shaft 310, and the driving wheel 330 can drive the clamping jaw assembly 220 to rotate through the driven wheel 340.

[0037] It is understandable that if Figure 1 , Figure 2 and Figure 3 As shown, the second driver 120 is a driving motor, the driving shaft 310 is a spline shaft, the transmission seat 320 and the driving wheel 330 are both mounted on the driving shaft 310, the transmission seat 320 is connected to the main body seat 210, the driving wheel 330 is connected to the driving shaft 310, and the transmission assembly 300 also includes a synchronous belt 350, and the driving wheel 330 is connected to the driven wheel 340 through the synchronous belt 350. When in use, the first driver 110 drives the main seat 210 to move up and down relative to the fixed seat 100, and the main seat 210 drives the transmission seat 320 to move up and down. The driving wheel 330 moves up and down along the driving shaft 310 as the transmission seat 320 moves up and down, and maintains a transmission connection with the driven wheel 340 through the synchronous belt 350. The second driver 120 drives the driving shaft 310 to rotate, thereby driving the driving wheel 330 to rotate through the driving shaft 310, and the driving wheel 330 drives the driven wheel 340 to rotate through the synchronous belt 350, thereby driving the clamping jaw assembly 220 to rotate. It has a simple structure, a stable and reliable transmission connection, and a compact structure, which is convenient for reducing the spatial volume of the present invention and is easy to use.

[0038] In actual application, the specific structure of the transmission component 300 can also be changed according to actual use needs. For example, the second driver 120 can be a linear motor or a cylinder, and the transmission component 300 can be correspondingly set to a gear rack transmission structure. The second driver 120 drives the rack to move, and the clamping jaw assembly 220 is connected to the gear transmission, so that the gear can move along the rack while the rack can also drive the gear to rotate. Specifically, the driving shaft 310 can also be a special-shaped shaft structure, such as a square rod shaft, as long as it can drive the driving wheel 330 to rotate and enable the driving wheel 330 to move along its axis, and there is no limitation here.

[0039] In some embodiments, the jaw assembly 220 includes a jaw seat 221, a pushing member 222, a jaw member 223 and an elastic member 224. The jaw seat 221 is rotatably connected to the main body seat 210, the jaw member 223 is rotatably connected to the jaw seat 221 and is provided with a clamping portion 225, the elastic member 224 acts on the jaw member 223, the jaw member 223 is provided with at least two and is evenly spaced along the circumference of the jaw seat 221, the third driver 230 is drivingly connected to the pushing member 222 and can drive the pushing member 222 to move relative to the jaw seat 221, the pushing member 222 is respectively in contact with each jaw member 223 and can drive the jaw member 223 to rotate by overcoming the force of the elastic member 224, and the clamping portions 225 can approach each other or move away from each other as each jaw member 223 rotates.

[0040] It is understandable that if Figure 1 , Figure 5 and Figure 6 As shown, the third driver 230 is a cylinder and is used to drive the pushing member 222 to move up and down. The elastic member 224 is connected to the clamping claw member 223. The pushing member 222 is respectively in contact with each clamping claw member 223. The pushing member 222 can move and push each clamping claw member 223 to overcome the force of the elastic member 224 and rotate. When the pushing member 222 is reset, the clamping claw member 223 rotates and resets under the action of the elastic member 224. The clamping claw members 223 rotate so that the clamping parts 225 can move closer to each other or move away from each other, so as to clamp, grasp or release the cover body. It has a simple structure and is easy to use.

[0041] In actual application, the pushing member 222 can also be able to drive the clamping member 223 to rotate by moving through a connecting rod structure, and the clamping member 223 can also be slidably set on the clamping member 221. The pushing member 222 can make each clamping member 223 move closer or farther relative to each other through a wedge structure to achieve clamping of the cover body; the specific structure of the clamping member 223 and the elastic member 224 can be set accordingly according to actual use needs. The specific action process of the clamping member 220 is not described in detail here, and will be explained in detail below. Of course, the clamping member 220 can also be a pneumatic clamp, etc. Those skilled in the art should be able to understand the structure and principle of pneumatic clamps, etc., and will not be repeated here.

[0042] In some embodiments, two clamping jaws 223 are provided, and the two clamping jaws 223 are symmetrically arranged along the rotation axis of the clamping jaw seat 221. The elastic member 224 is a spring and is located between the two clamping jaws 223. Each clamping jaw 223 is provided with a connecting hole 226 for inserting the end of the elastic member 224. The lower part of the pushing member 222 is inserted between the two clamping jaws 223 and respectively abuts against the two clamping jaws 223 through the inclined surface.

[0043] It is understandable that if Figure 1 , Figure 5 and Figure 6 As shown, the two clamping jaws 223 are symmetrically arranged along the rotation axis of the clamping jaw seat 221, and the elastic member 224 is a compression spring. The elastic member 224 is located between the two clamping jaws 223 and below the rotation axis of the clamping jaws 223. The end of the elastic member 224 is inserted into the connecting hole 226 of the clamping jaws 223, providing an elastic force for the lower parts of the two clamping jaws 223 to move them away from each other. The pushing member 222 is located at the upper part of the clamping jaws 223, and the lower part of the pushing member 222 is inserted between the two clamping jaws 223 and respectively abuts against the two clamping jaws 223 through the inclined surfaces, so that when the pushing member 222 moves downward, it pushes the upper parts of the two clamping jaws 223 to rotate away from each other through the inclined surfaces, and at the same time, the lower parts of the two clamping jaws 223 compress the elastic member 224 and rotate toward each other, thereby clamping and grabbing the cover body; refer to Figure 6 When the push member 222 moves upward, the two clamping claws 223 rotate away from each other at their lower parts under the action of the elastic member 224 to release the clamping of the cover body. The structure is simple, the clamping of the cover body is stable and reliable, and the connection method of the elastic member 224 is simple and convenient, and easy to use.

[0044] In actual application, the clamping jaws 223 can also be specifically set to three, four or more, which can be evenly spaced along the circumference of the clamping jaw seat 221 to achieve clamping of the cover body. The elastic member 224 can also be a tension spring or an annular elastic ring, etc. When it acts above the rotation axis of the clamping jaw 223, the elastic member 224 can be a tension spring. The elastic member 224 can be connected between the clamping jaw 223 and the clamping jaw 223, or it can be connected between the clamping jaw 223 and the clamping jaw seat 221. It can be set accordingly according to the position of the clamping jaw 223 and the specific structure of the pushing member 222; in addition to the rotation between the pushing member 222 and the clamping jaw 223 through the inclined surface, the pushing member 222 and the clamping jaw 223 can also be arranged by tilting the clamping jaw 223, and the pushing member 222 drives multiple clamping jaws 223 to rotate by means of plane pressure, which will not be repeated here.

[0045] In some embodiments, the clamping portion 225 and the clamping jaw 223 are detachably connected. Figure 1 and Figure 5As shown, the clamping portion 225 and the clamping claw member 223 are detachably connected by a bolt structure, and the clamping portion 225 can be disassembled and replaced relative to the clamping claw member 223. On the one hand, it can facilitate the replacement and maintenance of the clamping portion 225. On the other hand, by replacing the clamping portion 225, the clamping claw member 223 can clamp covers of different sizes, thereby improving the applicability of the present invention. In actual application, the specific detachable structure between the clamping portion 225 and the clamping claw member 223 can be set accordingly according to actual use needs, such as realizing detachability through a latch structure or a clamping structure, etc., which will not be described in detail here, and will be described in detail below.

[0046] In some embodiments, the clamping mechanism 200 further includes a connecting member 260 , the pushing member 222 is rotatably connected to the connecting member 260 , and the third driver 230 is drivingly connected to the connecting member 260 and can drive the pushing member 222 to move relative to the clamping base 221 through the connecting member 260 .

[0047] It is understandable that if Figure 3 , Figure 4 and Figure 5 As shown, the third driver 230 is connected to the push member 222 through the connecting member 260, and the push member 222 and the connecting member 260 can rotate relative to each other. When in use, the third driver 230 drives the connecting member 260 to move up and down, thereby driving the push member 222 to move up and down. When the clamping jaw assembly 220 rotates, the push member 222 rotates together with the clamping jaw assembly 223. Through the rotational connection between the push member 222 and the connecting member 260, the trouble of the third driver 230 having to rotate with the clamping jaw assembly 220 is avoided. On the one hand, the space volume occupied by the moving part of the present invention can be reduced, and on the other hand, it helps to avoid the connection line of the third drive from being entangled, thereby improving the reliability of use. In actual application, the specific structure of the connecting member 260 can be set accordingly according to the actual use needs, and is not limited here.

[0048] In some embodiments, a guide member 270 is disposed on the connecting member 260 , and a guide groove 211 is disposed on the main body seat 210 corresponding to the guide member 270 , and the guide member 270 and the guide groove 211 are slidably matched.

[0049] It is understandable that if Figure 1 , Figure 3 and Figure 4 As shown, by setting the sliding fit between the guide member 270 and the guide groove 211, it can guide and limit the up and down movement of the connecting member 260, and at the same time, it is also beneficial to prevent the connecting member 260 from rotating with the push member 222, improve the reliability of the movement of the connecting member 260, and facilitate use. In actual application, the specific structure of the guide member 270 and the guide groove 211 can be set accordingly according to actual use needs, and is not limited here.

[0050] In some embodiments, the clamping mechanism 200 also includes a moving seat 240, a buffer member 250 is arranged between the moving seat 240 and the main seat 210, the first driver 110 is drivingly connected to the moving seat 240 and can drive the moving seat 240 to move relative to the fixed seat 100, and the moving seat 240 can drive the main seat 210 to move.

[0051] It is understandable that if Figure 1 , Figure 3 and Figure 5 As shown, a guide column structure is arranged between the movable seat 240 and the main body seat 210, and a buffer member 250 is sleeved on the guide column structure. The buffer member 250 is a spring. The first driver 110 drives the movable seat 240 to move up and down and drives the main body seat 210 to move up and down. When the jaw assembly 220 moves down to the hose and the cover body is twisted onto the hose, the setting of the buffer member 250 can help prevent the first driver 110 from continuing to drive the jaw assembly 220 to move down and cause extrusion damage to the hose, thereby improving the reliability of the present invention and facilitating its use.

[0052] In actual application, the buffer member 250 can also be other elastic structures, or the buffer member 250 can be a buffer cylinder, etc. The specific structure and connection method of the elastic member 224 can be set accordingly according to actual use needs and are not limited here.

[0053] In some embodiments, a screw mechanism 130 is disposed on the fixed base 100 , and the first driver 110 and the movable base 240 are connected via the screw mechanism 130 .

[0054] It is understandable that if Figure 1 and Figure 3 As shown, the first driver 110 is a driving motor, and the first driver 110 is connected to the moving seat 240 through a screw mechanism 130. The first driver 110 can drive the moving seat 240 to move up and down through the screw mechanism 130. By setting the screw mechanism 130, its structure is simple and the cost is low, and the positioning accuracy of the moving seat 240 is high. At the same time, it has a certain self-locking property, which improves the reliability of the use of the present invention. In actual application, the first driver 110 can also drive the moving seat 240 to move through a synchronous belt structure. The specific connection structure between the first driver 110 and the moving seat 240 can also be set accordingly according to actual use needs. Those skilled in the art should understand it and will not be repeated here.

[0055] The hose cap-twisting device according to the second embodiment of the present invention comprises the cap-twisting device according to the first embodiment of the present invention.

[0056] The hose capping device according to the embodiment of the present invention adopts the above-mentioned capping device, which has a simple and reasonable structure, a compact structure and a small space volume required for movement, which helps to reduce the space volume occupied by the hose capping device and is convenient for production and application.

[0057] Since other structures of the hose cap twisting device according to the embodiment of the present invention are known to those skilled in the art, they will not be described in detail here.

[0058] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A twist cover device, characterized in that: include: A fixing seat (100), wherein a first driver (110) and a second driver (120) are fixedly connected to the fixing seat (100); The clamping mechanism (200) comprises a main body seat (210), a clamping jaw assembly (220) and a third driver (230), wherein the main body seat (210) is slidably arranged on the fixed seat (100) and connected to the first driver (110), the clamping jaw assembly (220) is rotatably connected to the main body seat (210), the third driver (230) is arranged on the main body seat (210) and is drivingly connected to the clamping jaw assembly (220), the first driver (110) can drive the clamping mechanism (200) to move, and the third driver (230) can drive the clamping jaw assembly (220) to open and close, so that the clamping jaw assembly (220) can clamp the cover body; The transmission assembly (300) comprises a driving shaft (310), a transmission seat (320), a driving wheel (330) and a driven wheel (340), wherein the driving shaft (310) is connected to the second driver (120), the transmission seat (320) is movably sleeved on the driving shaft (310) and connected to the main body seat (210), the driving wheel (330) is rotatably connected to the transmission seat (320) and connected to the driving shaft (310), and the driven wheel (340) is connected to the clamping jaw assembly. (220) and is in transmission connection with the driving wheel (330), the second driver (120) can drive the driving shaft (310) to rotate, the driving shaft (310) can drive the driving wheel (330) to rotate, the main body seat (210) can drive the transmission seat (320) to move, so that the driving wheel (330) can move along the driving shaft (310), and the driving wheel (330) can drive the clamping jaw assembly (220) to rotate through the driven wheel (340).

2. The twist cover device according to claim 1, characterized in that: The clamping jaw assembly (220) comprises a clamping jaw seat (221), a pushing member (222), a clamping jaw member (223) and an elastic member (224); the clamping jaw seat (221) is rotatably connected to the main body seat (210); the clamping jaw member (223) is rotatably connected to the clamping jaw seat (221) and is provided with a clamping portion (225); the elastic member (224) acts on the clamping jaw member (223); the clamping jaw member (223) is provided with at least two clamping jaws along the periphery of the clamping jaw seat (221) and a clamping portion (225) is provided. The third driver (230) is evenly spaced apart, the third driver (230) is connected to the pushing member (222) and can drive the pushing member (222) to move relative to the clamping jaw seat (221), the pushing member (222) is respectively in contact with each of the clamping jaw members (223) and can drive the clamping jaw member (223) to rotate by overcoming the force of the elastic member (224), and each of the clamping portions (225) can move closer to each other or farther away from each other as each of the clamping jaw members (223) rotates.

3. The twist cover device according to claim 2, characterized in that: Two clamping jaws (223) are provided, and the two clamping jaws (223) are symmetrically arranged along the rotation axis of the clamping jaw seat (221). The elastic member (224) is a spring and is located between the two clamping jaws (223). Each of the clamping jaws (223) is provided with a connecting hole (226) for inserting the end of the elastic member (224). The lower part of the pushing member (222) is inserted between the two clamping jaws (223) and respectively abuts against the two clamping jaws (223) through an inclined surface.

4. The twist cover device according to claim 2, characterized in that: The clamping portion (225) and the clamping claw member (223) are detachably connected.

5. The twist cover device according to claim 2, characterized in that: The clamping jaw mechanism (200) further comprises a connecting member (260), the pushing member (222) is rotatably connected to the connecting member (260), and the third driver (230) is drivingly connected to the connecting member (260) and can drive the pushing member (222) to move relative to the clamping jaw seat (221) through the connecting member (260).

6. The twist cover device according to claim 5, characterized in that: The connecting member (260) is provided with a guide member (270), and the main body seat (210) is provided with a guide groove (211) corresponding to the guide member (270), and the guide member (270) is slidably matched with the guide groove (211).

7. The twist cover device according to claim 1, characterized in that: The clamping mechanism (200) further comprises a movable seat (240), a buffer member (250) being arranged between the movable seat (240) and the main body seat (210), the first driver (110) being drivingly connected to the movable seat (240) and capable of driving the movable seat (240) to move relative to the fixed seat (100), and the movable seat (240) being capable of driving the main body seat (210) to move.

8. The twist cover device according to claim 7, characterized in that: A screw mechanism (130) is provided on the fixed seat (100), and the first driver (110) and the movable seat (240) are connected via the screw mechanism (130).

9. A hose capping device, characterized in that: It comprises a twist cover device according to any one of claims 1 to 8.

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