Cap screwing mechanism

Abstract

The invention relates to a cap screwing mechanism which comprises a lower fixing plate, an upper fixing plate, a lifting module and a cap screwing module. Firstly, an upper fixing plate and a lower fixing plate are connected through a guide rod, the distance between the upper fixing plate and the lower fixing plate is kept unchanged, in addition, a cap screwing servo motor in the cap screwing module is used for providing kinetic energy and is connected with a ball spline through a cap screwing transmission part, so that a cap screwing sleeve at the top of the ball spline is driven to rotate, and the top of the cap screwing sleeve is used for containing a Luer cap; a lifting servo motor in the lifting module is used for providing kinetic energy and is connected with a ball screw through a lifting transmission part, so that a lifting table connected with the ball screw can ascend and descend along a guide rod, and the bottom of a ball spline is fixedly connected with the lifting table, so that the lifting table can ascend and descend along the guide rod. Therefore, the Luer cap in the rotating sleeve at the top of the ball spline can be driven to lift. According to the cap screwing mechanism, the Luer cap can be driven to be screwed from bottom to top.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical equipment, and in particular to a capping mechanism. Background Art

[0002] Capping machines are widely used in the production process of bottling lines such as pharmaceuticals, food, and cosmetics. Existing capping mechanisms often tighten the cap structure that needs to be tightened from top to bottom. However, for some production lines, the Luer cap needs to be tightened. Due to its special structure, the Luer cap cannot be tightened from top to bottom, resulting in unstable tightness of the cap. Summary of the invention

[0003] In view of this, the present application proposes a cap screwing mechanism, which can screw the Luer cap from bottom to top.

[0004] The present application provides a capping mechanism, comprising: a lower fixing plate, an upper fixing plate, a lifting platform, a ball spline and a capping sleeve.

[0005] The upper fixing plate and the lower fixing plate are connected by a guide rod; the lifting platform is arranged between the upper fixing plate and the lower fixing plate, and the lifting platform is passed through the guide rod and can be lifted and lowered along the guide rod; the bottom of the ball spline is fixedly connected to the lifting platform, and the upper part passes through the upper fixing plate to extend above the upper fixing plate, and the ball spline can rotate in the circumferential direction; the screw cap sleeve is arranged on the top of the ball spline, is suitable for fixing the Luer cap to be processed, and can rotate the Luer cap to be processed under the drive of the ball spline.

[0006] In an achievable manner, it further includes: a capping servo motor and a capping transmission part; the capping servo motor is connected to the ball spline through the capping transmission part, and can drive the capping sleeve to rotate; the capping transmission part includes: a capping driving wheel, a capping driven wheel and a capping synchronous belt; the capping driving wheel is connected to the output shaft of the capping servo motor, the capping driven wheel is sleeved on the input shaft of the ball spline, and the capping synchronous belt is sleeved on the capping driving wheel and the capping driven wheel; the capping servo motor, the ball spline, the capping sleeve and the capping transmission part are a capping module.

[0007] In one feasible manner, it further includes: a lifting servo motor, a ball screw and a lifting transmission part; the lifting servo motor is connected to the ball screw through the lifting transmission part, the lifting platform is arranged between the upper fixed plate and the lower fixed plate, and the lifting platform is passed through the guide rod and can be lifted and lowered along the guide rod, and the ball screw is fixedly connected to the lifting platform and can drive the lifting platform to rise and fall.

[0008] In one feasible manner, the lifting transmission part includes: a lifting driving wheel, a lifting driven wheel and a lifting synchronous belt; the lifting driving wheel is connected to the output shaft of the lifting servo motor, the lifting driven wheel is sleeved on the input shaft of the ball screw, and the lifting synchronous belt is sleeved on the lifting driving wheel and the lifting driven wheel.

[0009] In one feasible manner, the lifting servo motor is clamped and arranged on the front side of the lower fixed plate, the housing of the lifting servo motor is arranged on the top of the lower fixed plate, and the output shaft at the bottom of the lifting servo motor is arranged through the lower fixed plate; the ball screw is vertically arranged on the rear side of the servo motor, the ball screw passes through the lifting platform, and its top is fixedly connected to the upper fixed plate, and the input shaft at the bottom of the ball screw is arranged through the lower fixed plate; the setting height of the input shaft of the ball screw is the same as the setting height of the output shaft of the lifting servo motor.

[0010] In one feasible manner, the cap screwing servo motor is arranged on the front side of the upper fixed plate, and the cap screwing servo motor is connected to the upper fixed plate through a mounting plate; the ball spline is vertically arranged on the rear side of the cap screwing servo motor, and the input shaft on the ball spline is arranged on the top of the upper fixed plate; the setting height of the input shaft of the ball spline is the same as the setting height of the output shaft of the cap screwing servo motor; a storage groove is provided on the top of the cap screwing sleeve, and the storage groove is suitable for placing the Luer cap to be processed, and the opening of the Luer cap to be processed faces upward.

[0011] In one feasible manner, the lifting platform includes: a lifting plate, a connecting plate and a limit member, the lifting plate and the connecting plate are both arranged through the guide rod, the connecting plate is arranged at the top of the lifting plate, the limit member is arranged between the lifting plate and the connecting plate, and the top of the limit member is fixedly arranged at the bottom of the connecting plate; the bottom of the ball spline is fixedly connected to the connecting plate.

[0012] In one feasible manner, it further includes: a buffer cylinder, the top of which is fixedly connected to the lifting platform; an opening is provided on the lower fixed plate corresponding to the buffer cylinder, and when the lifting platform descends, the bottom of the buffer cylinder is lower than the setting position of the lower fixed plate.

[0013] In an achievable manner, the lifting platform comprises: a lifting plate, a connecting plate and a limiting member, the lifting plate and the connecting plate are both arranged through the guide rod, the connecting plate is arranged on the top of the lifting plate, the limiting member is arranged between the lifting plate and the connecting plate, and the top of the limiting member is fixedly arranged on the bottom of the connecting plate, and the bottom of the ball spline is fixedly connected to the connecting plate; the screw cover mechanism also comprises: a buffer cylinder, the top of the buffer cylinder is fixedly connected to the lifting plate, and an opening is arranged on the lower fixed plate corresponding to the buffer cylinder, and when the lifting plate descends, The bottom of the buffer cylinder is lower than the setting position of the lower fixed plate; there are multiple screw-on capping modules, and the multiple screw-on capping modules are arranged sequentially along the left-right direction of the upper fixed plate; the number of the connecting plates is the same as the number of the screw-on capping modules, and each of the connecting plates is correspondingly arranged at the bottom of the ball spline; the number of the buffer cylinders is the same as the number of the screw-on capping modules, and each of the buffer cylinders is correspondingly arranged at the bottom of the setting position of the screw-on capping module; the number of the guide rods is greater than or equal to the number of the screw-on capping modules, and each of the screw-on capping modules is correspondingly arranged with at least one guide rod.

[0014] In one feasible manner, the lower fixed plate is a rectangular plate-like structure, and an extension plate is extended forward at the front position in the length direction. The extension plate is provided with a through hole for clamping the lifting servo motor. The ball screw is arranged in the middle position in the length direction of the lower fixed plate, and openings are provided on both sides of the ball screw.

[0015] The beneficial effects of the present application are as follows: the upper fixed plate and the lower fixed plate are connected by a guide rod; the lifting platform is arranged between the upper fixed plate and the lower fixed plate, and the lifting platform is arranged on the guide rod and can be lifted and lowered along the guide rod; the bottom of the ball spline is fixedly connected to the lifting platform, and the upper part passes through the upper fixed plate and extends to the upper part of the upper fixed plate, so that when the lifting platform is lifted and lowered, the ball spline can be driven to be lifted and lowered, and the ball spline can be rotated in the circumferential direction; the screw cap sleeve is arranged on the top of the ball spline, which is used to fix the Luer cap to be processed, and can rotate the Luer cap to be processed under the drive of the ball spline. Through the mutual cooperation of the lifting and rotating of the ball spline, the Luer cap is synchronously driven to be lifted and rotated, so as to achieve the purpose of tightening the Luer cap.

[0016] First, the upper fixed plate and the lower fixed plate are connected by a guide rod, and the distance between the upper fixed plate and the lower fixed plate remains unchanged; in addition, the capping module is used to clamp and rotate the cap, and the lifting module is used to control the height of the cap. Through the cooperation of the two, the installation of the cap can be completed. Among them, the capping servo motor in the capping module is used to provide kinetic energy, and is connected to the ball spline through the capping transmission part, thereby driving the capping sleeve at the top of the ball spline to rotate, and the top of the capping sleeve is used to place the Luer cap, thereby driving the Luer cap to rotate, and the lifting servo motor in the lifting module is used to provide kinetic energy, and is connected to the ball screw through the lifting transmission part, so that the lifting platform connected to the ball screw can be lifted and lowered along the guide rod, and because the bottom of the ball spline is fixedly connected to the lifting platform, it can drive the Luer cap in the rotating sleeve at the top of the ball spline to lift and lower. According to a capping mechanism of the present application, the Luer cap can be tightened from bottom to top.

[0017] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0019] Figure 1 The front and side main structure diagrams of the cap screwing mechanism of the embodiment of the present application are shown;

[0020] Figure 2 A rear side main structure diagram of the cap screwing mechanism of an embodiment of the present application is shown;

[0021] Figure 3 A front view of a capping mechanism according to an embodiment of the present application is shown;

[0022] Figure 4 A rear view of the capping mechanism according to an embodiment of the present application is shown;

[0023] Figure 5 A side view showing a cap screwing mechanism according to an embodiment of the present application;

[0024] Figure 6 A top view of the capping mechanism according to an embodiment of the present application is shown;

[0025] Figure 7 A bottom view of the cap screwing mechanism according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0026] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0027] Among them, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0030] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0031] like Figure 1-2 As shown, the cover rotating mechanism includes: a lower fixing plate 110 , an upper fixing plate 120 , a lifting module 300 and a cover rotating module 200 .

[0032] The upper fixing plate 120 and the lower fixing plate 110 are connected and arranged through guide rods 400; the lifting module 300 includes: a lifting servo motor 310, a ball screw 320, a lifting table 340 and a lifting transmission part 330; the lifting servo motor 310 is connected to the ball screw 320 through the lifting transmission part 330, the lifting table 340 is arranged between the upper fixing plate 120 and the lower fixing plate 110, and the lifting table 340 is sleeved on the guide rods 400 and can lift along the guide rods 400. The ball screw 320 is fixedly connected to the lifting table 340 and can drive the lifting table 340 to lift; the cap screwing module 200 includes: a cap screwing servo motor 210, a ball spline 220, a cap screwing sleeve 230 and a cap screwing transmission part 240; the ball spline 220 passes through the upper fixing plate 120, and the bottom of the ball spline 220 is fixedly connected to the lifting table 340. The cap screwing sleeve 230 is arranged on the top of the ball spline 220. The cap screwing servo motor 210 is connected to the ball spline 220 through the cap screwing transmission part 240 and can drive the cap screwing sleeve 230 to rotate.

[0033] As Figure 3 shown, the left-right direction is the length direction described in this application. As Figure 3 shown, the up-down direction is the up-down direction described in this application. As Figure 5 shown, the left-right direction is the width direction described in this application. As Figure 5 shown, the left side is the front side described in this application. Conversely, as Figure 5 shown, the right side is the rear side described in this application.

[0034] The lower fixing plate 110 is a rectangular plate-like structure, and chamfers are cut at the four corner positions. The top view of the lower fixing plate 110 is a "day"-shaped structure, and the middle horizontal line of the "day"-shaped structure is arranged along the width direction; an extension plate extends forward from the front side of the lower fixing plate 110, and the lower fixing plate 110 and the extension plate are integrally formed; the extension plate is a rectangular plate-like structure, and the lower fixing plate 110 and the extension plate have the same thickness. The extension plate is arranged at the middle position in the length direction of the lower fixing plate 110, and the length of the extension plate is 1 / 4 - 1 / 3 of the lower fixing plate 110; through holes are formed in the extension plate for clamping the lifting servo motor 310 on the extension plate and fixing it with bolts on the lifting servo motor 310. The through holes are structures matching the size of the lifting servo motor 310. The output shaft of the lifting servo motor 310 is arranged below the plane where the extension plate is located, and the rest are arranged above the plane where the extension plate is located; the guide rods 400 are vertically arranged on the top of the lower fixing plate 110. When there are multiple guide rods 400, they are arranged along the outer frame of the "day"-shaped lower fixing plate 110 and along the tops of the two sides in the length direction of the lower fixing plate 110.

[0035] The lifting plate 341 is arranged on the top of the lower fixed plate 110. The lifting plate 341 is a rectangular plate-shaped structure. The front and rear sides thereof are provided with gaps in the length direction. The gaps are in the shape of a trapezoidal structure, which are used to make way for the guide rod 400, so that the top projection of the lifting plate 341 is an "I"-shaped structure. The length of the lifting plate 341 is slightly smaller than the length of the lower fixed plate 110, and the length of the lifting plate 341 is equal to the length of the lower fixed plate 110 when the two frames in the length direction are not calculated. The width of the lifting plate 341 is equal to the width of the lower fixed plate 110, or slightly larger than the width of the lower fixed plate 110; through holes are opened at the four corners of the lifting plate 341, and the guide rod 400 is arranged through the through holes on the lifting plate 341. The upper and lower sides of the lifting plate 341 are provided with stabilizing members, which are cylindrical structures and are sleeved on the guide rod 400. One end of the stabilizing member is connected to the lifting plate 341 by bolts, which can increase the stability of the lifting plate 341 moving on the guide rod 400.

[0036] The connecting plate 342 is arranged on the top of the lifting plate 341, and the number of the connecting plates 342 is the same as the number of the rotary cover modules 200, and each connecting plate 342 is relatively arranged at the bottom of each rotary cover module 200; the connecting plate 342 is a rectangular plate structure, and the long side of the rectangle of the connecting plate 342 is equal to the wide side of the rectangle of the lifting plate 341, and multiple connecting plates 342 are arranged along the length direction of the lifting plate 341; a through hole is opened on the connecting plate 342, and the guide rod 400 is arranged through the through hole on the connecting plate 342, and the upper and lower sides of the connecting plate 342 are provided with a stabilizing member, which is a cylindrical structure and is sleeved on the guide rod 400, and one end of the stabilizing member is connected to the connecting plate 342 by bolts, which can increase the stability of the connecting plate 342 moving on the guide rod 400.

[0037] The upper fixed plate 120 is a rectangular plate structure. The length of the upper fixed plate 120 is equal to or slightly smaller than the length of the lower fixed plate 110, and the width of the upper fixed plate 120 is slightly larger than the width of the lower fixed plate 110. A mounting hole is provided near the rear side of the upper fixed plate 120 for mounting the entire device to a predetermined position; the top of the guide rod 400 is fixedly connected to the four corners of the upper fixing plate.

[0038] Among them, the upper fixing plate 120, the lower fixing plate 110, the lifting plate 341 and the connecting plate 342 are all parallel to each other and arranged along the horizontal plane direction, and the top projection area of ​​the upper fixing plate 120 is larger than the top projection area of ​​any of the lower fixing plate 110, the lifting plate 341 and the connecting plate 342. The distance between the lifting plate 341 and the connecting plate 342 remains unchanged, and the distance between the upper fixing plate 120 and the lower fixing plate 110 remains unchanged, and the lifting plate 341 and the connecting plate 342 are lifted and lowered on the guide rod 400 together.

[0039] The guide rod 400 is a cylindrical straight rod structure, and the guide rod 400 is vertically arranged between the upper fixing plate 120 and the lower fixing plate 110. The top of the guide rod 400 is fixedly connected to the bottom of the upper fixing plate 120, and the bottom of the guide rod 400 is fixedly connected to the top of the lower fixing plate 110. The number of the guide rods 400 is greater than or equal to the number of the screw-capping modules 200. The optimal number of the screw-capping modules 200 is 6. When the number of the screw-capping modules 200 is 6, the number of the guide rods 400 is 12. Two guide rods 400 are respectively penetrated through each connecting plate 342, and the guide rods 400 are arranged in two rows along the width direction. Each row of guide rods 400 is arranged in a straight line in the length direction, and the bottoms of the 12 guide rods 400 are arranged along the two long sides of the lower fixed plate 110. Among them, the four guide rods 400 arranged at the corners of the upper fixed plate 120 are fixed with the upper fixed plate 120, the connecting plate 342, the lifting plate 341 and the lower fixed plate 110 from top to bottom, respectively, and the remaining eight guide rods 400 are fixed with the upper fixed plate 120, the connecting plate 342 and the lower fixed plate 110 from top to bottom; further, when the number of guide rods 400 is multiple, the diameter of the guide rods 400 at the four corners is larger than the diameter of the remaining guide rods 400.

[0040] In one feasible manner, the lifting transmission part 330 includes: a lifting driving wheel 331, a lifting driven wheel 332 and a lifting synchronous belt 333; the lifting driving wheel 331 is connected to the output shaft of the lifting servo motor 310, the lifting driven wheel 332 is sleeved on the input shaft of the ball screw 320, and the lifting synchronous belt 333 is sleeved on the lifting driving wheel 331 and the lifting driven wheel 332.

[0041] The lifting module 300 is used to drive the Luer cap to move up and down.

[0042] The lifting servo motor 310 is clamped in the through hole of the extension plate and fixedly connected to the extension plate by bolts, wherein the output shaft of the lifting servo motor 310 is arranged at the bottom of the extension plate. The present application does not limit the type and model of the lifting servo motor 310, as long as it can cooperate with the lifting transmission part 330 to drive the Luer cap to rise and fall; Figure 2As shown in the rear side main structure of the screw cap mechanism, the ball screw 320 is arranged on the horizontal line position in the middle of the lower fixed plate 110, and openings are arranged on the lower fixed plate 110 on both sides of the ball screw 320. The input shaft of the ball screw 320 is arranged at the bottom of the lower fixed plate 110. The ball screw 320 is fixedly connected to the lower fixed plate 110, the lifting plate 341 and the upper fixed plate 120. The ball screw 320 is flange-connected to the lower fixed plate 110, and the ball screw 320 is flange-connected to the lifting plate 341; the lifting servo The output shaft of the servo motor 310 and the input shaft of the ball screw 320 are arranged on the same plane, so that the two can cooperate with each other through the lifting transmission part 330. The lifting driving wheel 331 is sleeved on the output shaft of the lifting servo motor 310, and the lifting driven wheel 332 is sleeved on the input shaft of the ball screw 320. The lifting driving wheel 331 and the lifting driven wheel 332 are connected by the lifting synchronous belt 333. The lifting synchronous belt 333 plays the role of transmitting kinetic energy, thereby driving the lifting screw to control the lifting of the lifting plate 341. In addition, the lifting transmission part 330 can be replaced by the mutual cooperation between the transmission gears, and the specific implementation method can be flexibly set according to the actual application.

[0043] In one practicable manner, the capping transmission part 240 includes: a capping driving wheel 241, a capping driven wheel 242 and a capping synchronous belt 243; the capping driving wheel 241 is connected to the output shaft of the capping servo motor 210, the capping driven wheel 242 is sleeved on the input shaft of the ball spline 220, and the capping synchronous belt 243 is sleeved on the capping driving wheel 241 and the capping driven wheel 242.

[0044] The capping module 200 is used to drive the Luer cap to rotate.

[0045] The capping servo motor 210 is arranged at the front side of the upper fixed plate 120, and the capping servo motor 210 is fixedly connected to the upper fixed plate 120 through the mounting plate 211. The connecting plate 342 is a rectangular plate-shaped structure, and a circular through hole is opened near the front side of the connecting plate 342, and the circular through hole passes through the output shaft of the capping servo motor 210, and is fixedly connected to the capping servo motor 210 by bolts. The rear side of the connecting plate 342 overlaps the front side of the upper fixed plate 120, and is fixedly connected to the upper fixed plate 120 by bolts. The setting height of the output shaft of the capping servo motor 210 after installation is higher than the top height of the upper fixed plate 120. When there are multiple cover modules 200, multiple cover servo motors 210 are extended along the length direction of the front side of the upper fixed plate 120. The present application does not limit the type and model of the cover servo motor 210, as long as it can cooperate with the cover transmission part 240 to drive the ball spline 220 to rotate; the ball spline 220 is arranged at the middle and rear position of the upper fixed plate 120, and the axis of the ball spline 220 is vertically inserted on the upper fixed plate 120, and the bottom of the axis of the ball spline 220 is fixedly connected to the connecting plate 342, and the ball screw 320 can control the lifting and lowering of the lifting plate 341, and the connecting plate 342 and the lifting plate 341 are lifted and lowered together, which can bring The movable ball spline 220 moves up and down. In addition, the angular rotation part of the ball spline 220 is arranged on the top of the upper fixed plate 120 and is arranged at the same height as the output shaft of the capping servo motor 210, so that the two can cooperate with each other through the capping transmission part 240 to achieve the purpose of rotating the ball spline 220 axis; the capping driving wheel 241 is sleeved on the output shaft of the capping servo motor 210, and the capping driven wheel 242 is sleeved on the input shaft of the ball spline 220. The capping driving wheel 241 and the capping driven wheel 242 are connected by the capping synchronous belt 243. The capping synchronous belt 243 plays the role of transmitting kinetic energy, thereby driving the ball spline 220 to rise and fall; The cover sleeve 230 is fixedly arranged on the top of the ball spline 220 shaft, and a socket matching the ball spline 220 shaft is provided at the bottom of the cover sleeve 230. The cover sleeve 230 is plugged and arranged on the ball spline 220 shaft, and is locked from the side of the cover sleeve 230 by bolts. When the ball spline 220 shaft is lifted and rotated, the cover sleeve 230 can also be lifted and rotated. A storage groove 231 matching the shape of the Luer cap is provided on the top of the cover sleeve 230, which is used to place the Luer cap in the storage groove 231, ensuring that the Luer cap and the inner wall of the storage groove 231 will not rotate, and ensuring that the cover sleeve 230 can drive the Luer cap to rotate. In addition, the cover transmission part 240 can be replaced by the mutual cooperation between the transmission gears, and the specific implementation method can be flexibly set according to the actual application.

[0046] In one feasible manner, the lifting servo motor 310 is snap-connected and arranged on the front side of the lower fixed plate 110, the housing of the lifting servo motor 310 is arranged on the top of the lower fixed plate 110, and the output shaft at the bottom of the lifting servo motor 310 is arranged through the lower fixed plate 110; the ball screw 320 is vertically arranged on the rear side of the servo motor, the ball screw 320 passes through the lifting platform 340, and its top is fixedly connected to the upper fixed plate 120, and the input shaft at the bottom of the ball screw 320 is arranged through the lower fixed plate 110; the setting height of the input shaft of the ball screw 320 is the same as the setting height of the output shaft of the lifting servo motor 310.

[0047] In one feasible manner, the cap rotating servo motor 210 is arranged on the front side of the upper fixed plate 120, and the cap rotating servo motor 210 is connected to the upper fixed plate 120 through the mounting plate 211; the ball spline 220 is vertically arranged on the rear side of the cap rotating servo motor 210, and the input shaft on the ball spline 220 is arranged on the top of the upper fixed plate 120; the setting height of the input shaft of the ball spline 220 is the same as the setting height of the output shaft of the cap rotating servo motor 210.

[0048] In an achievable manner, the lifting platform 340 includes: a lifting plate 341, a connecting plate 342 and a stopper 343, wherein the lifting plate 341 and the connecting plate 342 are both arranged through the guide rod 400, the connecting plate 342 is arranged at the top of the lifting plate 341, the stopper 343 is arranged between the lifting plate 341 and the connecting plate 342, and the top of the stopper 343 is fixedly arranged at the bottom of the connecting plate 342; the bottom of the ball spline 220 is fixedly connected to the connecting plate 342. The stopper 343 is arranged between the connecting plate 342 and the lifting plate 341, and can control the distance between the connecting plate 342 and the lifting plate 341, and at the same time play a certain supporting role.

[0049] In one practicable manner, it further includes: a buffer cylinder 500, the top of which is fixedly connected to the lifting platform 340; an opening is provided on the lower fixed plate 110 corresponding to the buffer cylinder 500, and when the lifting plate 341 descends, the bottom of the buffer cylinder 500 is lower than the setting position of the lower fixed plate 110. The buffer cylinder 500 is used to play a buffering role when the lifting servo motor 310 drives the lifting plate 341 to rise and fall, so as to avoid damage to the device during the start and stop process.

[0050] In one possible implementation, the lifting platform 340 includes: a lifting plate 341, a connecting plate 342 and a limiter 343, the lifting plate 341 and the connecting plate 342 are both arranged through the guide rod 400, the connecting plate 342 is arranged at the top of the lifting plate 341, the limiter 343 is arranged between the lifting plate 341 and the connecting plate 342, and the top of the limiter 343 is fixedly arranged at the bottom of the connecting plate 342, and the bottom of the ball spline 220 is fixedly connected to the connecting plate 342; the screw cap mechanism also includes: a buffer cylinder 500, the top of the buffer cylinder 500 is fixedly connected to the lifting plate 341, and the lower fixed plate 110 corresponding to the buffer cylinder 500 is provided with an opening. When the plate 341 descends, the bottom of the buffer cylinder 500 is lower than the setting position of the lower fixed plate 110; the number of the screw capping modules 200 is multiple, and the multiple screw capping modules 200 are arranged sequentially along the left and right directions of the upper fixed plate 120; the number of the connecting plates 342 is the same as the number of the screw capping modules 200, and each connecting plate 342 is correspondingly arranged at the bottom of the ball spline 220; the number of the buffer cylinders 500 is the same as the number of the screw capping modules 200, and each buffer cylinder 500 is correspondingly arranged at the bottom of the setting position of the screw capping module 200; the number of the guide rods 400 is greater than or equal to the number of the screw capping modules 200, and each screw capping module 200 is correspondingly provided with at least one guide rod 400.

[0051] In one practicable manner, the screw cap sleeve 230 is inserted and arranged on the top of the ball spline 220, and the screw cap sleeve 230 and the ball spline 220 are detachably connected and fastened by bolts; a storage groove 231 is provided on the top of the screw cap sleeve 230, and the storage groove 231 is suitable for matching with the Luer cap. The screw cap sleeve 230 can be disassembled as needed and replaced with other cover structures required for installation.

[0052] In one practicable manner, the lower fixed plate 110 is a rectangular plate-shaped structure, and an extension plate is provided at the front side position in the length direction thereof, and a through hole for clamping the lifting servo motor 310 is provided on the extension plate, and the ball screw 320 is provided in the middle position in the length direction of the lower fixed plate 110, and openings are provided on both sides of the ball screw 320; the lifting plate 341 is a rectangular plate-shaped structure, and the length and width of the lifting plate 341 are both smaller than the length and width of the lower fixed plate 110, and the lifting plate 341 is A clearance gap is opened on the front side, and the setting position of the clearance gap corresponds to the setting position of the lower fixed plate 110; the connecting plate 342 is a rectangular plate structure, and the length direction of the connecting plate 342 is set along the width direction of the lifting plate 341, and the length of the connecting plate 342 is smaller than the width of the lifting plate 341, and multiple connecting plates 342 are arranged along the width direction thereof; the upper fixed plate 120 is a rectangular plate structure, and the top projection of the upper fixed plate 120 can cover the top projections of the connecting plate 342 and the lifting plate 341.

[0053] Furthermore, the lower fixing plate 110, the upper fixing plate 120, the lifting plate 34 and the connecting plate 342 are all arranged in the horizontal direction, the ball spline 220 and the ball screw 320 are all arranged in the vertical direction, and the screw cap sleeve 230 is vertically arranged on the top of the ball spline 220, so that the Luer cap can be vertically arranged in the storage groove 231, and the circumferential direction when the screw cap sleeve 230 rotates is the horizontal direction, and the direction when the screw cap sleeve 230 is lifted is the vertical direction, and the opening of the Luer cap is arranged upward, wherein the opening direction of the Luer cap refers to the side that is buckled to the bottle body, which is Figure 3 Top orientation shown.

[0054] During use, the Luer cap is first placed in the storage slot 231 at the top of the screw cap sleeve 230, the lifting module 300 outputs kinetic energy from the lifting servo motor 310, and the lifting transmission part 330 transmits the kinetic energy generated by the lifting servo motor 310 to the ball screw 320, the ball screw 320 drives the lifting plate 341 and the connecting plate 342 to rise and fall synchronously along the guide rod 400, thereby achieving the effect of lifting and lowering the ball spline 220 at the top of the connecting plate 342, in addition, the screw cap module 200 outputs kinetic energy from the screw cap servo motor 210, and the screw cap transmission part 240 transmits the kinetic energy generated by the screw cap servo motor 210 to the ball spline 220, the ball spline 220 drives the screw cap sleeve 230 to rotate, and through the coordinated cooperation of the lifting module and the screw cap module 200, the effect of tightening or removing the Luer cap is achieved.

[0055] It should be noted that although the present application is used as an example to introduce a screw cap mechanism as above, those skilled in the art will understand that the present application should not be limited thereto. In fact, the user can flexibly set various parameters according to personal preferences and / or actual application scenarios, as long as the design is reasonable.

[0056] In this way, first, the upper fixed plate and the lower fixed plate are connected by the guide rod, and the distance between the upper fixed plate and the lower fixed plate remains unchanged; in addition, the capping module is used to clamp and rotate the cap assembly, and the lifting module is used to control the height of the cap assembly. Through the cooperation of the two, the installation of the cap assembly can be completed; wherein, the capping servo motor in the capping module is used to provide kinetic energy, and is connected to the ball spline through the capping transmission part, thereby driving the capping sleeve at the top of the ball spline to rotate, and the top of the capping sleeve is used to place the Luer cap, thereby driving the Luer cap to rotate, and the lifting servo motor in the lifting module is used to provide kinetic energy, and is connected to the ball screw through the lifting transmission part, so that the lifting platform connected to the ball screw can be lifted and lowered along the guide rod, and because the bottom of the ball spline is fixedly connected to the lifting platform, it can drive the Luer cap in the rotating sleeve at the top of the ball spline to lift and lower. A capping mechanism according to the present application can drive the Luer cap to be tightened from bottom to top.

[0057] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A capping mechanism, characterized in that: include: Lower fixing plate, upper fixing plate, lifting platform, ball spline and screw cap sleeve; The upper fixing plate and the lower fixing plate are connected by a guide rod; The lifting platform is arranged between the upper fixing plate and the lower fixing plate, and the lifting platform is passed through the guide rod and can be lifted and lowered along the guide rod; The bottom of the ball spline is fixedly connected to the lifting platform, the upper part passes through the upper fixing plate and extends above the upper fixing plate, and the ball spline can rotate in the circumferential direction; The screw cap sleeve is arranged on the top of the ball spline, is suitable for fixing the Luer cap to be processed, and can rotate the Luer cap to be processed driven by the ball spline.

2. The cap screwing mechanism according to claim 1, characterized in that: Also includes: Capping servo motor and capping transmission unit; The capping servo motor is connected to the ball spline through the capping transmission part, and can drive the capping sleeve to rotate; The capping transmission part comprises: a capping driving wheel, a capping driven wheel and a capping synchronous belt; The capping driving wheel is connected to the output shaft of the capping servo motor, the capping driven wheel is sleeved on the input shaft of the ball spline, and the capping synchronous belt is sleeved on the capping driving wheel and the capping driven wheel; The capping servo motor, the ball spline, the capping sleeve and the capping transmission part form a capping module.

3. The cap screwing mechanism according to claim 1, characterized in that: Also includes: Lifting servo motor, ball screw and lifting transmission unit; The lifting servo motor is connected to the ball screw through the lifting transmission part. The lifting platform is arranged between the upper fixed plate and the lower fixed plate, and the lifting platform is passed through the guide rod and can be lifted and lowered along the guide rod. The ball screw is fixedly connected to the lifting platform and can drive the lifting platform to rise and fall.

4. The cap screwing mechanism according to claim 3, characterized in that: The lifting transmission part includes: a lifting driving wheel, a lifting driven wheel and a lifting synchronous belt; The lifting driving wheel is connected to the output shaft of the lifting servo motor, the lifting driven wheel is sleeved on the input shaft of the ball screw, and the lifting synchronous belt is sleeved on the lifting driving wheel and the lifting driven wheel.

5. The capping mechanism according to claim 4, characterized in that: The lifting servo motor is clamped and arranged on the front side of the lower fixed plate, the housing of the lifting servo motor is arranged on the top of the lower fixed plate, and the output shaft at the bottom of the lifting servo motor passes through the lower fixed plate; The ball screw is vertically arranged at the rear side of the servo motor, passes through the lifting platform, and the top of the ball screw is fixedly connected to the upper fixing plate, and the input shaft at the bottom of the ball screw passes through the lower fixing plate; The setting height of the input shaft of the ball screw is the same as the setting height of the output shaft of the lifting servo motor.

6. The cap screwing mechanism according to claim 2, characterized in that: The cap rotating servo motor is arranged at the front side of the upper fixing plate, and the cap rotating servo motor is connected to the upper fixing plate via a mounting plate; The ball spline is vertically arranged on the rear side of the cap-screwing servo motor, and the input shaft on the ball spline is arranged on the top of the upper fixing plate; The setting height of the input shaft of the ball spline is the same as the setting height of the output shaft of the capping servo motor; A storage groove is provided on the top of the screw-cap sleeve, and the storage groove is suitable for placing the Luer cap to be processed, and the opening of the Luer cap to be processed faces upward.

7. The cap screwing mechanism according to any one of claims 1 to 5, characterized in that: The lifting platform comprises: a lifting plate, a connecting plate and a limiting member, wherein the lifting plate and the connecting plate are both arranged through the guide rod, the connecting plate is arranged on the top of the lifting plate, the limiting member is arranged between the lifting plate and the connecting plate, and the top of the limiting member is fixedly arranged on the bottom of the connecting plate; The bottom of the ball spline is fixedly connected to the connecting plate.

8. The cap screwing mechanism according to any one of claims 1 to 5, characterized in that: Also includes: A buffer cylinder, the top of which is fixedly connected to the lifting platform; An opening is arranged on the lower fixing plate corresponding to the buffer cylinder. When the lifting platform descends, the bottom of the buffer cylinder is lower than the setting position of the lower fixing plate.

9. The cap screwing mechanism according to claim 2 or 6, characterized in that: The lifting platform comprises: a lifting plate, a connecting plate and a limiting member, the lifting plate and the connecting plate are both arranged through the guide rod, the connecting plate is arranged on the top of the lifting plate, the limiting member is arranged between the lifting plate and the connecting plate, and the top of the limiting member is fixedly arranged on the bottom of the connecting plate, and the bottom of the ball spline is fixedly connected to the connecting plate; The capping mechanism further includes: a buffer cylinder, the top of which is fixedly connected to the lifting plate, an opening is arranged on the lower fixing plate corresponding to the buffer cylinder, and when the lifting plate descends, the bottom of the buffer cylinder is lower than the setting position of the lower fixing plate; The number of the cover-spinning modules is multiple, and the multiple cover-spinning modules are arranged in sequence along the left-right direction of the upper fixing plate; The number of the connecting plates is the same as the number of the rotary cover modules, and each of the connecting plates is correspondingly arranged at the bottom of the ball spline; The number of the buffer cylinders is the same as the number of the capping modules, and each of the buffer cylinders is correspondingly arranged at the bottom of the setting position of the capping module; The number of the guide rods is greater than or equal to the number of the cover-spinning modules, and each cover-spinning module is at least correspondingly provided with one guide rod.

10. The cap screwing mechanism according to any one of claims 3 to 5, characterized in that: The lower fixed plate is a rectangular plate-shaped structure, and an extension plate is extended forward at the front side in the length direction. The extension plate is provided with a through hole for clamping the lifting servo motor. The ball screw is arranged in the middle position in the length direction of the lower fixed plate, and openings are provided on both sides of the ball screw.

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