Pretreatment system for infusion set three-way tube assembly

Abstract

The present invention relates to the technical field of three-way tube pretreatment devices, and in particular to a pretreatment system for the three-way tube of an infusion set before assembly. The pretreatment system for the three-way tube of an infusion set before assembly comprises a frame and a three-way tube feeding device, a three-way tube material transfer device, a three-way tube rotation and alignment device and a three-way tube flipping device arranged on the frame. The three-way tube feeding device and the three-way tube rotation and alignment device are sequentially installed on the frame, the three-way tube material transfer device is installed on the frame body above the three-way tube feeding device and the three-way tube rotation and alignment device, and the three-way tube flipping device is installed on the frame body above the three-way tube rotation and alignment device. The present invention can load a large amount of materials at one time, and the three-way tube is convenient to align during the loading process, and the process of loading, aligning, grabbing and moving is highly consistent. The devices have compact structural design, simple operation, consistent movements, and high assembly precision, which greatly improves the assembly efficiency of the three-way tube and the short tube of the infusion set.

Description

Technical Field

[0001] The invention relates to the technical field of three-way pipe pretreatment devices, in particular to a three-way pipe pretreatment system before assembly of an infusion set. Background Art

[0002] Infusion sets are currently very commonly used medical devices, which are mainly used for intravenous infusion of patients. Infusion sets are disposable medical supplies, and their demand is very huge, so they require higher production capacity and production efficiency. The pipelines of infusion sets include three-way pipes, short pipes and long pipes.

[0003] During the preparation of the infusion set, the short tube of the infusion set needs to be assembled with the tee tube. The tee tube needs to be pre-processed before assembly, and the tee tube needs to be neatly arranged and moved as a whole. After rotation, flipping and other operations, one of its ports is finally bonded and assembled with the short tube of the infusion set. The existing three-way tube assembly pre-processing system for infusion sets has many shortcomings in actual use, such as: (1) the amount of material that can be loaded at one time is small. If the loading amount is to be increased, the amount of conveying equipment must not be increased, and the investment cost is large, but the loading efficiency is low. It is inconvenient to align the three-way tubes before loading, and the continuity of the grabbing and moving process after aligning is poor; (2) In the efficient three-way tube loading device, the head of the three-way tube faces upward, and the lower end is the tube end that needs to be assembled with the short tube of the infusion set. The third tube section on the side is set in the direction of the short tube of the infusion set, which is conducive to the smooth and stable transportation of the three-way tube and avoids lateral rotation and movement due to gravity. However, when the three-way tube transported in this way is assembled with the short tube of the infusion set, the third tube section is prone to sinking; (3) The setting structure design for clamping and assembling the three-way tube is large, the operation process is complicated, and the operation accuracy is poor, which affects the assembly efficiency of the three-way tube and the short tube of the infusion set. Summary of the invention

[0004] The purpose of the present invention is to provide a pre-assembly system for the three-way tube of an infusion set, which overcomes the shortcomings of the aforementioned prior art and can meet the needs of large-scale one-time loading without adding conveying equipment. The three-way tube is convenient to align during loading, and the process of loading, aligning, grabbing, and transferring to the next process is highly coherent, which greatly improves the loading efficiency of the three-way tube; the three-way tube is rotated after loading to prevent the third pipe section of the three-way tube from sinking or shifting sideways in the subsequent process; the device has a compact structure, simple operation, coherent movements, and high assembly precision, which greatly improves the assembly efficiency of the three-way tube and the short tube of the infusion set.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A pre-treatment system for a tee tube of an infusion set before assembly, comprising a frame and a tee tube feeding device, a tee tube material transfer device, a tee tube rotation and positioning device and a tee tube flipping device arranged on the frame, wherein the tee tube feeding device and the tee tube rotation and positioning device are sequentially installed on the frame, the tee tube material transfer device is installed on the frame body of the frame above the tee tube feeding device and the tee tube rotation and positioning device, and the tee tube flipping device is installed on the frame body of the frame above the tee tube rotation and positioning device;

[0007] When in use, the tees are arranged in a row by the tee-tube feeding device, and the tees arranged in a row are transferred from the tee-tube feeding device to the tee-tube rotating and positioning device by the tee-tube material taking and transferring device. The tee is rotated 180° in the tee-tube rotating and positioning device, and then the tee is grabbed by the tee-tube turning device, and the tee is turned 90° and lifted from a vertical state to a horizontal state. At this time, the end of the tee that needs to be bonded and assembled with the short tube of the infusion set is close to the short tube of the infusion set, and the third tube section of the side wall of the tee faces downward. Under the clamping action of the tee-tube turning device and the action of its own gravity, the tee will not sink or shift sideways. The tee is moved by the tee-tube turning device to be bonded to the short tube of the infusion set that has been coated with glue.

[0008] Furthermore, the three-way pipe feeding device includes a three-way pipe conveying mechanism, a three-way pipe temporary storage mechanism located at the end of the three-way pipe conveying mechanism, and a dislocation reciprocating movement mechanism for moving the three-way pipe temporary storage mechanism. The three-way pipe conveying mechanism is provided with P conveying channels for conveying three-way pipes, and the three-way pipe temporary storage mechanism is provided with n×P three-way pipe accommodating openings; when in use, the P conveying channels are filled with three-way pipes, and the P conveying channels are aligned one by one with the P three-way pipe accommodating openings, and are arranged closest to the three-way pipe. The tee of the tee temporary storage mechanism enters into the tee accommodating opening it is aligned with, and then the offset reciprocating moving mechanism moves the tee temporary storage mechanism as a whole, so that P conveying channels are aligned with the other P tee accommodating openings one by one, and the tee closest to the tee temporary storage mechanism enters into its corresponding tee accommodating opening, and this cycle is repeated n times, and all the tee accommodating openings are equipped with a tee, so that a large amount of material can be loaded at one time without adding conveying equipment, thereby saving costs and improving the loading rate of the tee.

[0009] Furthermore, the three-way tube conveying mechanism is installed on the frame, and the three-way tube conveying mechanism includes a first bottom plate and a conveying channel arranged at intervals at the upper end of the first bottom plate; the main body of the conveying channel is a rectangular structure, and a "T"-shaped through hole is opened on the main body of the conveying channel along the length direction, and the upper end of the "T"-shaped through hole is connected with the upper end surface of the conveying channel main body, and the head of the three-way tube is located in the upper end opening of the "T"-shaped through hole, and one end of the three-way tube to be assembled with the short tube of the infusion pump is inserted into the lower end opening of the "T"-shaped through hole, and the other end of the three-way tube is located in the "T"-shaped through hole and extends in the direction of the three-way tube temporary storage mechanism; the first bottom plate and / or the conveying channel is arranged to be inclined downward in the direction in which the three-way tube temporary storage mechanism is set, and this placement direction of the three-way tube is conducive to the three-way tube sliding down under the action of gravity, and the three-way tube is stably positioned and smoothly enters the three-way tube accommodating opening of the three-way tube temporary storage mechanism during the sliding process. Furthermore, the lower end of the first bottom plate is connected to the vibration motor to facilitate the three-way pipe to slide smoothly from the "T"-shaped through hole to the three-way pipe accommodating opening of the three-way pipe temporary storage mechanism.

[0010] The cam is an upper and lower frame, and the lower frame is provided with a first sliding rail, and the second sliding rail is perpendicular to the direction of the conveying passage. The first sliding rail is provided with a first sliding block, the upper end surface of the first sliding block is connected with the lower end surface of the lower support plate, the two ends of the lower support plate are provided with side support plates, the upper support plate is provided between the upper ends of the side support plates, and the tee-tube accommodating plate is provided with a tee-tube accommodating plate on the upper end surface of the upper support plate, the setting direction of the tee-tube accommodating plate is perpendicular to the direction of the conveying passage, and the tee-tube accommodating openings are spaced apart on the tee-tube accommodating plate. When the first sliding block slides along the first sliding rail under the action of external force, the tee-tube accommodating plate is displaced, so that the tee-tube accommodating openings are aligned with the conveying passage in n batches, and each batch of P pieces are aligned with the conveying passage. The shape of the tee-tube accommodating opening is such that the position of the tee-tube in the tee-tube accommodating opening does not move, and it is convenient The three-way pipe clamp on the three-way pipe material transfer device is grasped as the basis; the offset reciprocating movement mechanism includes a first connecting plate, a first cylinder, a first cylinder mounting plate, a second cylinder and a second cylinder mounting plate, the upper end surface of the base is provided with a first cylinder mounting plate and a second cylinder mounting plate at intervals along the length direction of the base, the first cylinder mounting plate is installed with the first cylinder, and the second cylinder symmetrically arranged with the first cylinder is installed on the second cylinder mounting plate, the first connecting plate is located in the middle of the first cylinder mounting plate and the second cylinder mounting plate, one end of the first connecting plate is fixed on the lower support plate or the upper support plate, and the two side surfaces of the other end of the first connecting plate are respectively connected to the first cylinder and the second cylinder, when the first cylinder extends, the second cylinder contracts, and when the first cylinder contracts, the second cylinder extends, and when the first cylinder and the second cylinder are actuated, they both drive the first connecting plate to move, and the entire three-way pipe temporary storage mechanism is driven to move through the first connecting plate, and the three-way pipe temporary storage mechanism is ensured to move smoothly.

[0011] Furthermore, the three-way pipe material transfer device includes a clamping assembly, a longitudinal moving drive assembly connected to the clamping assembly and used to move the clamping assembly up and down, a sliding assembly installed on the frame and connected to the longitudinal moving drive assembly, and a horizontal moving drive assembly installed on the frame and connected to the sliding assembly; when in use, the clamping assembly is used to clamp the three-way pipe from the three-way pipe temporary storage mechanism, the longitudinal moving drive assembly is used to drive the clamping assembly to move up and down, and the horizontal moving drive assembly is used to push the sliding assembly, thereby driving the longitudinal moving drive assembly and the clamping assembly to move horizontally.

[0012] Further, the clamping assembly includes an air gripper mounting plate, n×P parallel air grippers spaced apart on the air gripper mounting plate, and a group of three-way pipe clamping jaws arranged on each parallel air gripper, the claw ends of the parallel air grippers face downward, and each group of three-way pipe clamping jaws includes two symmetrically arranged "L"-shaped three-way pipe clamping jaws, and the positions of the three-way pipe clamping jaws correspond to the positions of the three-way pipe accommodating openings; the contact ends of the "L"-shaped three-way pipe clamping jaws are symmetrically provided with semicircular openings, and the parallel air grippers open and close, driving the opening and closing of the three-way pipe clamping jaws, and when the three-way pipe clamping jaws are closed, the semicircular openings are clamped below the head of the three-way pipe;

[0013] The longitudinal movement driving assembly includes a side connecting plate, a horizontal supporting plate, a longitudinal cylinder, a first guide shaft and a first linear bearing, and the side connecting plates are arranged at intervals. The upper ends of the side connecting plates are connected to the sliding assembly, and a horizontal supporting plate is fixed between the lower ends of the side connecting plates. A longitudinally arranged longitudinal cylinder is installed on the horizontal supporting plate, and the end of the piston rod of the longitudinal cylinder passes downward through the horizontal supporting plate and is connected to the upper end surface of the air claw mounting plate. A first linear bearing is arranged on the horizontal supporting plates on both sides of the longitudinal cylinder, and a first guide shaft is installed in the first linear bearing. The lower end of the first guide shaft is connected to the upper end surface of the air claw mounting plate. The extension and contraction of the longitudinal cylinder drives the clamping assembly to move up and down, and the first guide shaft moves in the first linear bearing with the extension and contraction of the longitudinal cylinder, thereby playing a role of stable guiding.

[0014] The sliding assembly includes a second slide rail, a second slider and a slide seat, wherein the second slide rail is mounted on the frame, the second slider is mounted on the second slide rail, the upper end surface of the second slider is fixedly connected to the lower end surface of the slide seat, and the slide seat is connected to the upper end of the side connecting plate of the longitudinal movement driving assembly;

[0015] The horizontal movement driving assembly includes a first translation cylinder, a first translation cylinder mounting plate, a limit piece and a limit piece mounting plate. The first translation cylinder mounting plate is mounted on a frame, the first translation cylinder mounting plate is mounted with a first translation cylinder, the piston rod end of the first translation cylinder is connected with a slide seat, the extension and retraction of the first translation cylinder drives the slide seat to move along the setting direction of the second slide rail, the limit piece mounting plates are mounted on the frames on both sides of the first translation cylinder mounting plate, and the limit piece mounting plate is mounted with a limit piece for limiting the slide seat; the extension and retraction of the first translation cylinder drives the slide seat and the second slider to move along the slide rail, thereby making the longitudinal movement driving assembly and the clamping assembly translate, and the limit piece is used to limit the movement of the slide seat.

[0016] Furthermore, the three-way pipe rotation and positioning device comprises a second base plate, a first translation driving mechanism arranged on the upper end of the second base plate, a three-way pipe rotation and positioning mechanism connected to the first translation driving mechanism, the three-way pipe rotation and positioning mechanism comprises a shell, a rotating shaft, a three-way pipe seat and a rotating shaft rotation driving assembly, the rotating shaft is arranged with n×P strips at intervals, the rotating shaft is installed in the shell through a bearing, the upper end of the rotating shaft passes through the shell, the upper end of the rotating shaft is installed with a three-way pipe seat, and the shaft sections of the rotating shaft located inside the shell are all connected to the rotating shaft rotation driving assembly; when in use, first pass through the first A translation drive mechanism moves the three-way pipe rotation and alignment mechanism as a whole toward the three-way pipe material transfer device for grabbing the clamping assembly of the three-way pipe, and the clamping assembly places the three-way pipes uniformly into the three-way pipe seat of the three-way pipe rotation and alignment mechanism. The position of the three-way pipe in the three-way pipe seat is limited and cannot move sideways. The translation drive mechanism is reset, and the shaft rotation drive assembly drives all the shafts to rotate 180° synchronously in the circumferential direction, so that the third pipe section located on the side wall of the three-way pipe is rotated to face away from the short tube of the infusion set, so as to facilitate the assembly of the three-way pipe and the short tube of the infusion set in the subsequent process.

[0017] Furthermore, the first translation driving mechanism includes a third slide rail, a third slider, a third cylinder and a second connecting plate, the third slide rail is mounted on the second bottom plate, the third slide rail is provided with a third slider, the upper end surface of the third slider is fixedly connected to the lower end surface of the shell, the third cylinder is mounted on the second bottom plate, the end of the piston rod of the third cylinder is connected to the second connecting plate, and the second connecting plate is fixed to the shell, and the extension and contraction of the third cylinder drives the second connecting plate to move back and forth, thereby pulling the translation of the three-way pipe rotation alignment mechanism connected to the second connecting plate, so as to facilitate the three-way pipe rotation alignment mechanism to move close to or away from the clamping assembly for grabbing the three-way pipe in the three-way pipe material taking transfer device; the lower end surface of the shell is provided with a first contact block, and the lower end surface of the second bottom plate is provided with a second contact block. When the first contact block contacts the second contact block, it indicates that the first translation driving mechanism has completed resetting;

[0018] The three-way pipe seat includes an insert block, a side block arranged on one side of the upper end face of the insert block, a first shaft clamping plate arranged on the lower end face of the insert block, and a second shaft clamping plate connected to the first shaft clamping plate through a fastener, the first shaft clamping plate and the second shaft clamping plate are clamped at the upper end of the rotating shaft, a plug hole is arranged on the insert block, and a limiting groove is arranged on the side block, the size of the plug hole matches the size of one end of the three-way pipe connected with the short tube of the infusion set as needed, the end of the three-way pipe connected with the short tube of the infusion set as needed is inserted into the plug hole, the arc surface shape of the limiting groove matches the arc surface of the pipe section on the side face of the three-way pipe, the pipe section located on the side wall of the three-way pipe is limited in the limiting groove, so as to prevent the three-way pipe from circumferential movement during the rotation and alignment process;

[0019] The rotating shaft rotation driving assembly comprises a gear, a fourth cylinder, a cylinder seat plate, a third connecting plate, a fourth slider, a fifth slider, a slider mounting plate, a fourth slide rail and a rack, the gear sleeve is arranged on the outer wall of the rotating shaft, the cylinder seat plate is arranged on the inner wall of the shell, the fourth cylinder is installed in the inner cavity of the shell through the cylinder seat plate, the setting direction of the fourth cylinder is perpendicular to the direction of the rotating shaft, the end of the piston rod of the fourth cylinder is connected to the starting end of the third connecting plate, the cylinder barrel of the fourth cylinder is connected to the fourth slider through the slider mounting plate, the fifth slider is arranged at a side away from the cylinder barrel of the fourth cylinder through another slider mounting plate, the fourth slide rail passes through the fourth slider and the fifth slider in sequence, the fourth slide rail is fixedly connected to the rack, the setting directions of the fourth slide rail and the rack are the same and both are perpendicular to the rotating shaft, the teeth of the rack are meshed with the gears on the outer wall of all the rotating shafts, the end of the third connecting plate is fixedly connected to the fourth slide rail and / or the rack, in the rotating shaft rotation driving assembly, the fourth slider and the fifth slider keep a constant position, and under the extension and contraction drive of the fourth cylinder, the third connecting The connecting plate pulls the fourth slide rail and the rack to translate. During the translation of the rack, the gear rotates, driving the rotating shaft to rotate 180°, so that the third pipe section located on the side wall of the three-way pipe rotates to face away from the short tube of the infusion set, so as to facilitate the assembly of the three-way pipe and the short tube of the infusion set in the subsequent process; the upper end surface of the fourth slide rail and / or the rack is provided with a buffer positioning block, the height of the buffer positioning block is matched with the clearance of the distance from the fourth slide rail or the rack to the top surface of the shell, and the function of the buffer positioning block is mainly used to determine the meshing position of the rack and the gear during the installation of the device; the lower end surface of the fourth slide rail and / or the rack is provided with cylinder telescopic positioning blocks at intervals. When the fourth cylinder is extended, the end of the piston rod of the fourth cylinder contacts one of the cylinder telescopic positioning blocks, indicating that the 180° rotation is completed. When the fourth cylinder is retracted, the fourth slider contacts the other cylinder telescopic positioning block, indicating that the 180° rotation is completed; the side surface of the shell is provided with a long hole for the rack and the fourth slide rail to pass through; the side plates of the shell are fixed by fasteners.

[0020] Further, the three-way pipe flipping device includes a second translation drive mechanism, a longitudinal drive mechanism, a flip drive mechanism and a material taking mechanism, wherein the second translation drive mechanism is installed on the frame, the second translation drive mechanism is connected to the longitudinal drive mechanism, a flip drive mechanism is connected below the longitudinal drive mechanism, and the flip drive mechanism is connected to the material taking mechanism;

[0021] The second translation drive mechanism is used to drive the longitudinal drive mechanism, the flip drive mechanism and the material taking mechanism to translate as a whole, the longitudinal drive mechanism is used to drive the flip drive mechanism and the material taking mechanism to rise and fall, the flip drive mechanism is used to drive the material taking mechanism to flip 90 degrees, and the material taking mechanism is used to grab the three-way pipe;

[0022] When in use, the longitudinal driving mechanism drives the picking mechanism to move downward, the picking mechanism clamps the three-way tube, the longitudinal driving mechanism drives the picking mechanism to move upward, and the flipping driving mechanism drives the picking mechanism to rotate 90°, so that the end of the three-way tube that needs to be assembled with the short tube of the infusion set is horizontally facing the short tube of the infusion set, and then the three-way tube is moved toward the short tube of the infusion set by the second translation driving mechanism, and finally the three-way tube is bonded and assembled with the short tube of the infusion set that has been coated with glue.

[0023] Furthermore, the second translation driving mechanism includes a fifth slide rail, a sixth slider, a slide plate, a translation cylinder connecting plate, a second translation cylinder and a second translation cylinder mounting plate, the fifth slide rail is provided with at least two parallel and spaced apart, the fifth slide rail is fixed on the frame, a sixth slider is provided on the fifth slide rail, a slide plate is fixed between the upper end surfaces of the sixth slider, a translation cylinder connecting plate is provided on the slide plate, the second translation cylinder mounting plate is fixed on the frame, a second translation cylinder is installed on the second translation cylinder mounting plate, the piston rod end of the second translation cylinder is connected to the translation cylinder connecting plate, and when the second translation cylinder is extended or retracted, the slide plate is pulled or pushed to translate along the direction of the slide rail;

[0024] The longitudinal movement driving mechanism includes a vertical plate, a longitudinal movement cylinder seat plate, a longitudinal movement cylinder, a longitudinal movement top cylinder, a limiting top head, a second linear bearing, a second guide shaft, a guide shaft rear connecting plate and a first lifting connecting plate. The lower end surface of the slide plate is spaced apart with vertical plates, and a longitudinal movement cylinder seat plate is fixed between the lower end surfaces of the vertical plates. The longitudinal movement cylinder is installed on the longitudinal movement cylinder seat plate. The end of the piston rod of the longitudinal movement cylinder passes downward through the longitudinal movement cylinder seat plate and is connected to the first lifting connecting plate. Longitudinal movement top cylinders are installed on the longitudinal movement cylinder seat plates on both sides of the longitudinal movement cylinder, and the top rods of the longitudinal movement top cylinders extend downward from the longitudinal movement cylinder seat plate. The upper end surface of the first lifting connection plate is provided with a limit push head matched with the push rod of the longitudinal displacement push cylinder, and a plurality of second linear bearings are provided on the longitudinal displacement cylinder seat plate, and a second guide shaft is provided in each of the second linear bearings, and the upper end of the second guide shaft passes through the slide plate upward, and a guide shaft rear connecting plate is connected between the upper end surfaces of the second guide shaft, and the lower end of the second guide shaft is connected to the horizontally arranged first lifting connection plate, and the extension and retraction of the longitudinal displacement cylinder drives the lifting and lowering of the first lifting connection plate. In this process, the longitudinal displacement push cylinder is used to limit the lifting range, and the second guide shaft is used to enhance the stability of the lifting process;

[0025] The flip driving mechanism includes a second lifting connection plate, a flip cylinder seat plate, a flip cylinder, a bearing seat, a bearing, a coupling, a rotating shaft and a 90° flip limit assembly. The second lifting connection plate is horizontally arranged and fixedly connected to the first lifting connection plate. A flip cylinder seat plate is vertically arranged downward at one end of the second lifting connection plate. A flip cylinder is installed on the flip cylinder seat plate. Two bearing seats are arranged at intervals on the lower end surface of the second lifting connection plate. Bearings are installed in the bearing seats. A rotating shaft is arranged between the two bearings. The rotating shaft is connected to the flip cylinder through a coupling. A 90° flip limit assembly is arranged on the outer side of the bearing seat away from the flip cylinder.

[0026] The 90° flip limit assembly includes a limit head and a limit block, two of the limit heads are arranged at intervals, the upper end of the limit head is fixed on the lower end surface of the second lifting connection plate, the limit block is a right-angle block, the limit block is connected to the rotating shaft, one of the right-angle surfaces of the limit block contacts one of the limit heads, and when the rotating shaft rotates 90°, the other right-angle plate of the limit block contacts the other limit head. When the flip cylinder is started, the flip cylinder drives the rotating shaft to rotate. Under the limit of the 90° flip limit assembly, the rotating shaft can only rotate 90°;

[0027] The material picking mechanism includes a flip connecting plate, a material picking air claw base plate, a material picking air claw, a mechanical claw and a pressing block. The plate surface of the flip connecting plate is connected to the rotating shaft, and the lower end surface of the flip connecting plate is connected to the material picking air claw base plate. A plurality of material picking air claws are arranged on the plate surface of the material picking air claw base plate at intervals, and each material picking air claw is equipped with two mechanical claws that cooperate with each other. The mechanical claws are bent in an "L" shape, and pressing blocks corresponding to the positions of the material picking air claws are arranged on the flip connecting plate at intervals. The ends of the pressing blocks extend into the inner cavity formed by the two mechanical claws corresponding to their positions. When the material picking air claws are started, the mechanical claws grab the three-way pipe. Under the limit of the pressing block, all the three-way pipes are kept at the same height. At this time, the flip cylinder is started, and the rotating shaft is rotated 90° to flip the vertical three-way pipe into a horizontal three-way pipe, so that the end of the three-way pipe that needs to be assembled with the short tube of the infusion set is horizontally facing the short tube of the infusion set.

[0028] During the use of the three-way pipe flipping device, the mechanical claw of the material picking mechanism grabs the three-way pipe after loading and positioning, and all the three-way pipes are kept at the same height under the limiting action of the pressing block; the longitudinal cylinder of the longitudinal drive mechanism contracts, driving the three-way pipe to move up synchronously; the flipping cylinder of the flipping drive mechanism drives the rotating shaft to rotate, and then drives the material picking claw seat plate to rotate 90°, and the three-way pipe is rotated to a horizontal state, and the three-way pipe interface that needs to be assembled with the infusion pump hose faces the short tube of the infusion pump; the second translation cylinder of the second translation drive mechanism drives the three-way pipe to move toward the short tube of the infusion pump, so that the three-way pipe is bonded to the short tube of the infusion pump that has been coated with glue, and the assembly is completed.

[0029] The beneficial effects of the present invention are as follows: compared with the prior art, the pre-assembly pretreatment system of the three-way tube of the infusion set of the present invention has the following advantages: (1) P delivery channels are filled with three-way tubes, and the P delivery channels are aligned one by one with the P three-way tube accommodating openings. The three-way tube closest to the three-way tube temporary storage mechanism enters the three-way tube accommodating opening aligned with it, and then the offset reciprocating moving mechanism moves the three-way tube temporary storage mechanism as a whole, so that the P delivery channels are aligned one by one with the other P three-way tube accommodating openings, and the three-way tube closest to the three-way tube temporary storage mechanism enters its corresponding The three-way pipe is placed in the three-way pipe receiving opening, and the cycle is repeated n times. All the three-way pipe receiving openings contain a three-way pipe. At this time, the three-way pipe in the three-way pipe temporary storage mechanism can be grabbed by the three-way pipe material transfer device and the three-way pipe can be transferred to the next process. There is no need to increase the conveying equipment to meet the one-time large-scale material loading, saving costs and improving the three-way pipe loading rate. The three-way pipe moves smoothly in the conveying channel and automatically aligns in the three-way pipe receiving opening. The three-way pipe material transfer device steadily grabs the three-way pipe and transfers the three-way pipe to the next process. The whole process has strong continuity; (2) through the first The translation drive mechanism moves the three-way pipe rotation and alignment mechanism as a whole to the clamping assembly for grabbing the three-way pipe in the three-way pipe material transfer device. The clamping assembly uniformly places the three-way pipe into the three-way pipe seat of the three-way pipe rotation and alignment mechanism. The position of the three-way pipe in the three-way pipe seat is limited and cannot move sideways. The first translation drive mechanism is reset, and the shaft rotation drive assembly drives all the shafts to rotate 180 degrees synchronously along the circumferential direction, so that the third pipe section located on the side wall of the three-way pipe rotates to the back of the short tube of the infusion set, so as to facilitate the assembly of the three-way pipe and the short tube of the infusion set in the subsequent process; (3) The overall structure is compact in design, simple to operate, with continuous movements and high assembly precision. The longitudinal drive mechanism drives the picking mechanism to move downward, the picking mechanism clamps the three-way tube, the longitudinal drive mechanism drives the picking mechanism to move upward, and the flip drive mechanism drives the picking mechanism to rotate 90°, so that one end of the three-way tube that needs to be assembled with the short tube of the infusion set is horizontally facing the short tube of the infusion set, and then the three-way tube is moved toward the short tube of the infusion set through the second translation drive mechanism, and finally the three-way tube is bonded and assembled with the short tube of the infusion set that has been coated with glue, which greatly improves the assembly efficiency of the three-way tube and the short tube of the infusion set. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the pretreatment system before assembly of the three-way tube of the infusion set of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the three-way pipe feeding device and the three-way pipe material taking and transferring device of the present invention;

[0032] Figure 3 It is a schematic structural diagram of the three-way pipe feeding device and the three-way pipe material taking and transferring device under a second angle of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the three-way pipe feeding device and the three-way pipe material taking and transferring device of the present invention at a third angle;

[0034] Figure 5 It is a structural schematic diagram of the three-way pipe conveying mechanism of the three-way pipe feeding device of the present invention;

[0035] Figure 6 It is a structural schematic diagram of the three-way pipe temporary storage mechanism and the dislocation reciprocating movement mechanism of the three-way pipe feeding device of the present invention;

[0036] Figure 7 It is a structural schematic diagram from another angle of the three-way pipe temporary storage mechanism and the dislocation reciprocating movement mechanism of the three-way pipe feeding device of the present invention;

[0037] Figure 8 It is a structural schematic diagram of the three-way pipe material transfer device of the present invention;

[0038] Fig. 9 For the present invention Figure 8 A schematic diagram of the enlarged structure of region A;

[0039] Fig.10 It is a schematic diagram of the overall structure of the three-way pipe rotation and alignment device of the present invention;

[0040] Fig.11 It is a schematic diagram of the overall structure of the three-way pipe rotation and alignment device of the present invention from another angle;

[0041] Fig.12 For the present invention Fig.10 A schematic diagram of the enlarged structure of region B;

[0042] Fig.13 This is a schematic diagram of the structure of the three-way pipe rotation and alignment device of the present invention after removing part of the plate body from the housing;

[0043] Fig.14 It is a structural schematic diagram of the three-way pipe rotation and alignment device of the present invention in which the housing only retains the lower end plate;

[0044] Fig.15 It is a schematic diagram of the overall structure of the three-way pipe turning device of the present invention;

[0045] Fig.16 It is a schematic diagram of the overall structure of the three-way pipe turning device of the present invention from another angle;

[0046] Fig.17 It is a schematic structural diagram of the three-way pipe turning device of the present invention without the frame;

[0047] Fig.18 It is a schematic structural diagram of another angle of the three-way pipe turning device of the present invention after the frame is removed;

[0048] Among them, 1 frame, 2 three-way pipe feeding device, 201 three-way pipe conveying mechanism, 2011 first bottom plate, 2012 conveying channel, 2013 "T" shaped perforation, 202 three-way pipe temporary storage mechanism, 2021 base, 2022 first slide rail, 2023 first slider, 2024 lower support plate, 2025 side support plate, 2026 upper support plate, 2027 three-way pipe accommodating plate, 2028 three-way pipe accommodating opening, 203 offset reciprocating mechanism, 2031 first connecting plate, 2032 first cylinder, 2033 first cylinder mounting plate, 2034 second cylinder, 2035 second cylinder mounting plate, 3 three-way pipe material transfer device, 301 clamping assembly, 3011 claw mounting plate, 3012 parallel claw, 3013 three Through-tube clamp, 3014 semicircular opening, 302 longitudinal movement drive assembly, 3021 side connecting plate, 3022 horizontal support plate, 3023 longitudinal movement cylinder, 3024 first guide shaft, 3025 first linear bearing, 303 sliding assembly, 3031 second slide rail, 3032 second slider, 3033 slide seat, 304 horizontal movement drive assembly, 3041 first translation cylinder, 3042 first translation cylinder mounting plate, 3043 limiter, 3044 limiter mounting plate, 4 three-way pipe rotation and positioning device, 401 second bottom plate, 402 first translation drive mechanism, 4021 third slide rail, 4022 third slider, 4023 third cylinder, 4024 second connecting plate, 4025 first contact block, 4026 second contact contact block, 403 three-way pipe rotation and positioning mechanism, 4031 shell, 4032 rotating shaft, 4033 plug block, 4034 side block, 4035 first axis clamp, 4036 second axis clamp, 4037 plug hole, 4038 limit groove, 4039 gear, 40310 fourth cylinder, 40311 cylinder seat plate, 40312 third connecting plate, 40313 fourth slider, 40314 fifth slider, 40315 slider mounting plate, 40316 fourth slide rail, 40317 rack, 40318 buffer positioning block, 40319 cylinder telescopic positioning block, 40320 long hole, 5 three-way pipe turning device, 501 second translation driving mechanism, 5011 fifth slide rail, 5012 sixth slider, 5013 slide plate, 501 4 translation cylinder connecting plate, 5015 second translation cylinder, 5016 second translation cylinder mounting plate, 502 longitudinal drive mechanism, 5021 vertical plate, 5022 longitudinal cylinder seat plate, 5023 longitudinal cylinder, 5024 longitudinal top cylinder, 5025 limit top head, 5026 second linear bearing, 5027 second guide shaft, 5028 guide shaft rear connecting plate, 5029 first lifting connecting plate, 503 flip drive mechanism, 5031 second lifting connecting plate, 5032 flip cylinder seat plate, 5033 flip cylinder, 5034 bearing seat, 5035 bearing, 5036 coupling, 5037 rotating shaft, 5038 limit head, 5039 limit block, 504 material picking mechanism, 5041 flip connecting plate, 5042 material picking claw seat plate,5043 pneumatic gripper for taking materials, 5044 mechanical gripper, 5045 material pressing block, 6 three-way pipe. DETAILED DESCRIPTION

[0049] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0050] like Figure 1-18 In the illustrated embodiment, a pre-assembly pretreatment system for a three-way tube of an infusion set includes a frame 1 and a three-way tube feeding device 2, a three-way tube material transfer device 3, a three-way tube rotation and positioning device 4 and a three-way tube flipping device 5 arranged on the frame 1. The three-way tube feeding device 2 and the three-way tube rotation and positioning device 4 are sequentially installed on the frame, the three-way tube material transfer device 3 is installed on the frame body of the frame 1 above the three-way tube feeding device 2 and the three-way tube rotation and positioning device 4, and the three-way tube flipping device 5 is installed on the frame body of the frame 1 above the three-way tube rotation and positioning device 4;

[0051] When in use, the tee tubes 6 are arranged in a row by the tee tube feeding device 2, and the tee tubes 6 arranged in a row are transferred from the tee tube feeding device 2 to the tee tube rotating and positioning device 4 by the tee tube material taking and transferring device 3. The tee tube 6 is rotated 180° in the tee tube rotating and positioning device 4, and then the tee tube 6 is grabbed by the tee tube turning device 5, and the tee tube 6 is turned 90° and lifted from a vertical state to a horizontal state. At this time, the end of the tee tube 6 that needs to be bonded and assembled with the short tube of the infusion set is facing the short tube of the infusion set, and the third tube section of the side wall of the tee tube 6 faces downward. Under the clamping action of the tee tube turning device 5 and the action of the tee tube 6's own gravity, the tee tube will not sink or shift sideways. The tee tube 6 can be moved by the tee tube turning device 5 to be bonded to the short tube of the infusion set that has been coated with glue.

[0052] In this embodiment, the three-way pipe feeding device 2 includes a three-way pipe conveying mechanism 201, a three-way pipe temporary storage mechanism 202 located at the end of the three-way pipe conveying mechanism 201, and a dislocation reciprocating moving mechanism 203 for moving the three-way pipe temporary storage mechanism 202. The three-way pipe conveying mechanism 201 is provided with P conveying channels for conveying three-way pipes 6, and the three-way pipe temporary storage mechanism 202 is provided with 2×P three-way pipe accommodating openings; when in use, the P conveying channels are filled with three-way pipes 6, and the P conveying channels are aligned one by one with the P three-way pipe accommodating openings, and the arrangement The tee pipe 6 closest to the tee pipe temporary storage mechanism 202 enters the tee pipe accommodating opening it is aligned with, and then the offset reciprocating moving mechanism 203 moves the tee pipe temporary storage mechanism 202 as a whole, so that the P conveying channels are aligned one by one with the other P tee pipe accommodating openings, and the tee pipe 6 closest to the tee pipe temporary storage mechanism 202 enters its corresponding tee pipe accommodating opening. This cycle is repeated twice, and all the tee pipe accommodating openings accommodate a tee pipe 6. There is no need to increase conveying equipment to meet the one-time large-scale loading, saving costs and increasing the loading rate of the tee pipe 6.

[0053] In this embodiment, the three-way pipe conveying mechanism 201 is installed on the frame 1, and the three-way pipe conveying mechanism 201 includes a first bottom plate 2011 and a conveying channel 2012 spaced apart at the upper end of the first bottom plate 2011; the main body of the conveying channel 2012 is a rectangular structure, and a "T"-shaped through hole 2013 is opened on the main body of the conveying channel 2012 along the length direction, and the upper end of the "T"-shaped through hole 2013 is connected to the upper end surface of the main body of the conveying channel 2012, and the head of the three-way pipe 6 is located in the upper end opening of the "T"-shaped through hole 2013. One end of the three-way tube 6 to be assembled with the short tube of the infusion pump is inserted into the lower end opening of the "T"-shaped through hole 2013, and the other end of the three-way tube 6 is located in the "T"-shaped through hole 2013 and extends in the direction of the three-way tube temporary storage mechanism 202; the first bottom plate 2011 and / or the conveying channel 2012 are inclined downward in the direction of the three-way tube temporary storage mechanism 202, and the placement direction of the three-way tube 6 is conducive to the smooth sliding of the three-way tube 6 under the action of gravity. During the sliding process, the three-way tube is stably positioned and smoothly enters the three-way tube accommodating opening of the three-way tube temporary storage mechanism 202.

[0054] In this embodiment, the three-way pipe temporary storage mechanism 202 includes a base 2021, a first slide rail 2022, a first slider 2023, a lower support plate 2024, a side support plate 2025, an upper support plate 2026 and a three-way pipe accommodating plate 2027. The base 2021 is installed on the frame 1, and the upper end surface of the base 2021 is provided with a first slide rail 2022. The direction of the first slide rail 2022 is perpendicular to the direction of the conveying channel 2012. The first slider 2023 is installed on the first slide rail 2022. The upper end surface of the first slider 2023 is connected to the lower end surface of the lower support plate 2024. Side support plates 2025 are provided at both ends of the lower support plate 2024. A side support plate 2025 is provided between the upper ends of the side support plates 2025. There is an upper support plate 2026, and a three-way pipe accommodating plate 2027 is installed on the upper end surface of the upper support plate 2026. The setting direction of the three-way pipe accommodating plate 2027 is perpendicular to the direction of the conveying channel 2012. Three-way pipe accommodating openings 2028 are spaced apart on the three-way pipe accommodating plate 2027. When the first slider 2023 slides along the first slide rail 2022 under the action of external force, the three-way pipe accommodating plate 2027 is displaced, so that the three-way pipe accommodating openings 2028 are aligned with the conveying channel 2012 in two batches, each batch of P. The shape of the three-way accommodating opening 2028 is based on the position of the three-way pipe 6 in the three-way accommodating opening 2028 does not move, and is convenient for being grasped by the three-way pipe clamp on the three-way pipe material transfer device 3;

[0055] In this embodiment, the offset reciprocating mechanism 203 includes a first connecting plate 2031, a first cylinder 2032, a first cylinder mounting plate 2033, a second cylinder 2034, and a second cylinder mounting plate 2035. The upper end surface of the base 2021 is provided with a first cylinder mounting plate 2033 and a second cylinder mounting plate 2035 at intervals along the length direction of the base 2021. The first cylinder mounting plate 2033 is provided with the first cylinder 2032, and the second cylinder mounting plate 2035 is provided with a second cylinder 2034 symmetrically arranged with the first cylinder 2032. The first connecting plate 2031 is located between the first cylinder mounting plate 2033 and the second cylinder mounting plate 2035. In the middle part of the cylinder mounting plate 2035, one end of the first connecting plate 2031 is fixed on the lower support plate 2024 or the upper support plate 2026, and the two side surfaces of the other end of the first connecting plate 2031 are respectively connected to the first cylinder 2032 and the second cylinder 2034. When the first cylinder 2032 extends, the second cylinder 2034 contracts, and when the first cylinder 2032 contracts, the second cylinder 2034 extends. When the first cylinder 2032 and the second cylinder 2034 are actuated, they both drive the first connecting plate 2031 to move, and the entire three-way pipe temporary storage mechanism 202 is driven to move through the first connecting plate 2031, and ensure that the three-way pipe temporary storage mechanism 202 moves smoothly.

[0056] In this embodiment, the three-way pipe material transfer device 3 includes a clamping assembly 301, a longitudinal moving drive assembly 302 connected to the clamping assembly 301 and used to move the clamping assembly 301 up and down, a sliding assembly 303 installed on the frame 1 and connected to the longitudinal moving drive assembly 302, and a horizontal moving drive assembly 304 installed on the frame 1 and connected to the sliding assembly 303; when in use, the clamping assembly 301 is used to clamp the three-way pipe 6 from the three-way pipe temporary storage mechanism 202, the longitudinal moving drive assembly 302 is used to drive the clamping assembly 301 to move up and down, and the horizontal moving drive assembly 304 is used to push the sliding assembly 303, thereby driving the longitudinal moving drive assembly 302 and the clamping assembly 301 to move horizontally.

[0057] In this embodiment, the clamping assembly 301 includes an air gripper mounting plate 3011, 2×P parallel air grippers 3012 spaced apart on the air gripper mounting plate 3011, and a group of three-way pipe clamping jaws 3013 disposed on each parallel air gripper 3012, the claw ends of the parallel air grippers 3012 face downward, and each group of three-way pipe clamping jaws 3013 includes two symmetrically disposed "L"-shaped three-way pipe clamping jaws 3013, and the positions of the three-way pipe clamping jaws 3013 correspond to the positions of the three-way pipe accommodating openings 2028; the contact ends of the "L"-shaped three-way pipe clamping jaws are symmetrically provided with semicircular openings 3014, the parallel air grippers 3012 open and close, driving the three-way pipe clamping jaws 3013 to open and close, and when the three-way pipe clamping jaws 3013 are closed, the semicircular openings 3014 are clamped below the head of the three-way pipe 6;

[0058] The longitudinal movement drive assembly 302 includes a side connecting plate 3021, a horizontal support plate 3022, a longitudinal cylinder 3023, a first guide shaft 3024 and a first linear bearing 3025. The side connecting plates 3021 are arranged with two pieces at intervals. The upper ends of the side connecting plates 3021 are connected to the sliding assembly 303. The horizontal support plate 3022 is fixed between the lower ends of the side connecting plates 3021. The longitudinal cylinder 3023 is installed on the horizontal support plate 3022. The end of the piston rod of the longitudinal cylinder 3023 passes downward through the horizontal support plate 3022. The plate 3022 is connected to the upper end surface of the air gripper mounting plate 3011. The horizontal support plates 3022 on both sides of the longitudinal cylinder 3023 are provided with first linear bearings 3025. The first guide shaft 3024 is installed in the first linear bearing 3025. The lower end of the first guide shaft 3024 is connected to the upper end surface of the air gripper mounting plate 3011. The extension and retraction of the longitudinal cylinder 3023 drives the clamping assembly 301 to move up and down. The first guide shaft 3024 moves in the first linear bearing 3025 with the extension and retraction of the longitudinal cylinder 3023, playing a role of stable guidance.

[0059] The sliding assembly 303 includes a second slide rail 3031, a second slider 3032 and a slider seat 3033. The second slide rail 3031 is installed on the frame 1. The second slider 3032 is installed on the second slide rail 3031. The upper end surface of the second slider 3032 is fixedly connected to the lower end surface of the slider seat 3033. The slider seat 3033 is connected to the upper end of the side connecting plate 3021 of the longitudinal movement driving assembly 302.

[0060] The horizontal movement driving assembly 304 includes a first translation cylinder 3041, a first translation cylinder mounting plate 3042, a limiter 3043 and a limiter mounting plate 3044. The first translation cylinder mounting plate 3042 is mounted on the frame 1. The first translation cylinder 3041 is mounted on the first translation cylinder mounting plate 3042. The end of the piston rod of the first translation cylinder 3041 is connected to the slide seat 3033. The extension and retraction of the first translation cylinder 3041 drives the slide seat 3033 to move along the second slide rail 3031. The direction of movement is set, and a limit member mounting plate 3044 is installed on the frame 1 on both sides of the first translation cylinder mounting plate 3042, and a limit member 3043 for limiting the slide 3033 is installed on the limit member mounting plate 3044; the extension and retraction of the first translation cylinder 3041 drives the slide 3033 and the second slider 3032 to move along the second slide rail 3031, thereby making the longitudinal movement drive assembly 302 and the clamping assembly 301 translate, and the limit member 3043 is used to limit the movement of the slide 3033.

[0061] In this embodiment, the three-way pipe rotation and positioning device 4 includes a second base plate 401, a first translation drive mechanism 402 arranged at the upper end of the second base plate, and a three-way pipe rotation and positioning mechanism 403 connected to the first translation drive mechanism 402. The three-way pipe rotation and positioning mechanism 403 includes a shell 4031, a rotating shaft 4032, a three-way pipe seat and a rotating shaft rotation drive component. The rotating shaft 4032 is arranged with 2×P strips at intervals. The rotating shaft 4032 is installed in the shell 4031 through a bearing. The upper end of the rotating shaft 4032 passes through the shell 4031. The upper end of the rotating shaft 4032 is installed with a three-way pipe seat. The shaft section of the rotating shaft 4032 located inside the shell 4031 is connected to the rotating shaft rotation drive assembly. When in use, the three-way pipe rotation and positioning mechanism 403 is first moved as a whole toward the clamping assembly 301 of the three-way pipe material transfer device 3 for grabbing the three-way pipe through the first translation drive mechanism 402, and the clamping assembly 301 uniformly places the three-way pipe 6 into the three-way pipe seat of the three-way pipe rotation and positioning mechanism 403. The position of the three-way pipe 6 in the three-way pipe seat is limited and cannot move sideways. The first translation drive mechanism 402 is reset, and the shaft rotation drive assembly drives all the shafts 4032 to rotate synchronously 180° in the circumferential direction, so that the third pipe section on the side wall of the three-way pipe 6 is rotated to face away from the short tube of the infusion set, so as to facilitate the assembly of the three-way pipe 6 with the short tube of the infusion set in the subsequent process.

[0062] In this embodiment, the first translation driving mechanism 402 includes a third slide rail 4021, a third slider 4022, a third cylinder 4023 and a second connecting plate 4024. The third slide rail 4021 is installed on the second bottom plate 401. The third slider 4022 is provided on the third slide rail 4021. The upper end surface of the third slider 4022 is fixedly connected to the lower end surface of the shell 4031. The third cylinder 4023 is installed on the second bottom plate 401. The end of the piston rod of the third cylinder 4023 is connected to the second connecting plate 4024. The second connecting plate 4024 is fixed on the shell 4031. The extension and retraction of the cylinder 4023 drives the second connecting plate 4024 to move forward and backward, thereby pulling the translation of the three-way pipe rotation and positioning mechanism 403 connected to the second connecting plate 4024, so as to facilitate the three-way pipe rotation and positioning mechanism 403 to be moved close to or away from the clamping assembly 301 for grabbing the three-way pipe 6 in the three-way pipe material transfer device 3; the lower end surface of the shell 4031 is provided with a first contact block 4025, and the lower end surface of the second bottom plate 401 is provided with a second contact block 4026. When the first contact block 4025 contacts the second contact block 4026, it indicates that the first translation drive mechanism 402 has completed the reset;

[0063] The three-way pipe seat includes an insert block 4033, a side block 4034 arranged on one side of the upper end surface of the insert block 4033, a first shaft clamping plate 4035 arranged on the lower end surface of the insert block 4033, and a second shaft clamping plate 4036 connected to the first shaft clamping plate 4035 through a fastener, the first shaft clamping plate 4035 and the second shaft clamping plate 4036 are clamped at the upper end of the rotating shaft 4032, the insert block 4032 is provided with a socket 4037, and the side block 4034 is provided with a The limiting groove 4038, the size of the jack 4037 matches the size of the end of the tee tube 6 that needs to be connected to the short tube of the infusion set, the end of the tee tube 6 that needs to be connected to the short tube of the infusion set is inserted into the jack 4037, the arc surface shape of the limiting groove 4038 matches the arc surface of the pipe section on the side of the tee tube 6, the pipe section located on the side wall of the tee tube 6 is limited in the limiting groove 4038, preventing the tee tube 6 from circumferential movement during the rotation and alignment process;

[0064] The rotating shaft driving assembly includes a gear 4039, a fourth cylinder 40310, a cylinder seat plate 40311, a third connecting plate 40312, a fourth slider 40313, a fifth slider 40314, a slider mounting plate 40315, a fourth slide rail 40316 and a rack 40317. The gear 4039 is sleeved on the outer wall of the rotating shaft 4032. The cylinder seat plate 40311 is arranged on the inner wall of the shell 4031. The fourth cylinder 40310 is installed in the inner cavity of the shell 4031 through the cylinder seat plate 40311. The setting direction of the fourth cylinder 40310 is perpendicular to the direction of the rotating shaft 4032. The end of the piston rod of the fourth cylinder 40310 is connected to the beginning of the third connecting plate 40312. The cylinder of the fourth cylinder 40310 The cylinder is connected to the fourth slider 40313 through the slider mounting plate 40315, the fifth slider 40314 is spaced apart on the side away from the cylinder barrel of the fourth cylinder 40310 through another slider mounting plate 40315, the fourth slide rail 40316 passes through the fourth slider 40313 and the fifth slider 40314 in sequence, the fourth slide rail 40316 is fixedly connected to the rack 40317, the fourth slide rail 40316 and the rack 40317 are arranged in the same direction and are both perpendicular to the rotating shaft 4032, the teeth of the rack 40317 are meshed with the gears 4039 on the outer walls of all the rotating shafts 4032, the end of the third connecting plate 40312 is fixedly connected to the fourth slide rail 40316 and / or the rack 40317, and in the rotating shaft rotation drive assembly, the fourth slider 4 0313 and the fifth slider 40314 keep a constant position. Driven by the extension and contraction of the fourth cylinder 40310, the third connecting plate 40312 pulls the fourth slide rail 40316 and the rack 40317 to translate. During the translation of the rack 40317, the gear 4039 rotates, driving the rotating shaft 4032 to rotate 180°, so that the third pipe section located on the side wall of the three-way pipe 6 rotates to face away from the short tube of the infusion set, so as to facilitate the assembly of the three-way pipe 6 and the short tube of the infusion set in the subsequent process; the upper end surface of the fourth slide rail 40316 and / or the rack 40317 is provided with a buffer positioning block 40318, the height of the buffer positioning block 40318 is matched with the clearance between the fourth slide rail 4031 or the rack 40317 and the top surface of the shell 4031, and the buffer positioning block 40318 is provided with a buffer positioning block 40318. The function of the punch positioning block 40318 is mainly to determine the meshing position of the rack 40317 and the gear 4039 during the installation of the device; the lower end surface of the fourth slide rail 40313 and / or the rack 40317 is provided with a cylinder telescopic positioning block 40319 at intervals, when the fourth cylinder 40310 is extended, the end of the piston rod of the fourth cylinder 40310 contacts one of the cylinder telescopic positioning blocks 40319, indicating that the 180° rotation is completed, and when the fourth cylinder 40310 is retracted, the fourth slider 40313 contacts the other cylinder telescopic positioning block 40319, indicating that the 180° rotation is completed; the side surface of the housing 4031 is provided with a long hole 40320 for the rack 40317 and the fourth slide rail 40316 to pass through;The side panels of the housing 4031 are fixed by fasteners. ;

[0065] In this embodiment, the three-way pipe turning device 5 includes a second translation driving mechanism 501, a longitudinal driving mechanism 502, a turning driving mechanism 503 and a material taking mechanism 504. The second translation driving mechanism 501 is installed on the frame 1, the second translation driving mechanism 501 is connected to the longitudinal driving mechanism 502, the lower part of the longitudinal driving mechanism 502 is connected to the turning driving mechanism 503, and the turning driving mechanism 503 is connected to the material taking mechanism 504;

[0066] The second translation drive mechanism 501 is used to drive the longitudinal drive mechanism 502, the flip drive mechanism 503 and the material taking mechanism 504 to translate as a whole, the longitudinal drive mechanism 502 is used to drive the flip drive mechanism 503 and the material taking mechanism 504 to rise and fall, the flip drive mechanism 503 is used to drive the material taking mechanism 504 to flip 90 degrees, and the material taking mechanism 504 is used to grab the three-way pipe 6;

[0067] When in use, the longitudinal driving mechanism 502 drives the picking mechanism 504 to move downward, the picking mechanism 504 clamps the three-way tube 6, the longitudinal driving mechanism 502 drives the picking mechanism 504 to move upward, and the flipping driving mechanism 503 drives the picking mechanism 504 to rotate 90°, so that the end of the three-way tube 6 that needs to be assembled with the short tube of the infusion set is horizontally facing the short tube of the infusion set, and then the three-way tube is moved toward the short tube of the infusion set by the second translation driving mechanism 501, and finally the three-way tube 6 is bonded and assembled with the short tube of the infusion set that has been coated with glue.

[0068] In this embodiment, the second translation drive mechanism 501 includes a fifth slide rail 5011, a sixth slider 5012, a slide plate 5013, a translation cylinder connecting plate 5014, a second translation cylinder 5015 and a second translation cylinder mounting plate 5016, at least two of the fifth slide rails 5011 are arranged in parallel and at intervals, the fifth slide rail 5011 is fixed on the frame 1, the sixth slider 5012 is arranged on the fifth slide rail 5011, and the upper end surface of the sixth slider 5012 A slide plate 5013 is fixed between them, a translation cylinder connecting plate 5014 is arranged on the slide plate 5013, a second translation cylinder mounting plate 5014 is fixed on the frame 1, a second translation cylinder 5015 is mounted on the second translation cylinder mounting plate 5016, a piston rod end of the second translation cylinder 5015 is connected to the translation cylinder connecting plate 5014, when the second translation cylinder 5015 is extended or retracted, the slide plate 5013 is pulled or pushed to translate along the direction of the fifth slide rail 5011;

[0069] The longitudinal drive mechanism 502 includes a vertical plate 5021, a vertical cylinder seat plate 5022, a vertical cylinder 5023, a vertical top cylinder 5024, a limit top head 5025, a second linear bearing 5026, a second guide shaft 5027, a guide shaft rear connecting plate 5028 and a first lifting connecting plate 5029. The lower end surface of the slide plate 5013 is spaced apart with a vertical plate 5021, and a vertical cylinder seat plate 5022 is fixed between the lower end surfaces of the vertical plates 5021. The vertical cylinder 5023 is installed on the vertical cylinder seat plate 5022. The end of the piston rod of the vertical cylinder 5023 passes downward through the vertical cylinder seat plate 5022 and is connected to the first lifting connecting plate 5029. The vertical cylinder seat plates 5022 on both sides of the vertical cylinder 5023 are installed with vertical top cylinders 5024. The top rods of the vertical top cylinders 5024 A longitudinal cylinder seat plate 5022 is extended downward, and a limit push head 5025 cooperating with a push rod of the longitudinal cylinder 5024 is arranged on the upper end surface of the first lifting connection plate 5029. A plurality of second linear bearings 5026 are arranged on the longitudinal cylinder seat plate 5022, and a second guide shaft 5027 is arranged in each of the second linear bearings 5026. The upper end of the second guide shaft 5027 passes through the slide plate 5013 upward, and a guide shaft rear connecting plate 5028 is connected between the upper end surfaces of the second guide shaft 5027. The lower end of the second guide shaft 5027 is connected to the first lifting connection plate 5029 arranged horizontally. The extension and retraction of the longitudinal cylinder 5023 drives the lifting and lowering of the first lifting connection plate 5029. In this process, the longitudinal cylinder 5024 is used to limit the lifting range, and the second guide shaft 5027 is used to enhance the stability of the lifting process.

[0070] The flip driving mechanism 503 includes a second lifting connection plate 5031, a flip cylinder seat plate 5032, a flip cylinder 5033, a bearing seat 5034, a bearing 5035, a coupling 5036, a rotating shaft 5037 and a 90° flip limit assembly. The second lifting connection plate 5031 is horizontally arranged and fixedly connected to the first lifting connection plate 5029. A flip cylinder seat plate 5032 is vertically arranged downward at one end of the second lifting connection plate 5031, and the flip cylinder 5033 is installed on the flip cylinder seat plate 5032. Two bearing seats 5034 are arranged at intervals on the lower end surface of the second lifting connection plate 5031. Bearings are installed in the bearing seats 5034. A rotating shaft 5037 is arranged between the two bearings. The rotating shaft 5037 is connected to the flip cylinder 5033 through a coupling 5036. A 90° flip limit assembly is arranged on the outer side of the bearing seat 5034 away from the flip cylinder 5033.

[0071] The 90° flip limit assembly includes a limit head 5038 and a limit block 5039, wherein two limit heads 5038 are arranged at intervals, and the upper end of the limit head 5038 is fixed on the lower end surface of the second lifting connection plate 5031, and the limit block 5039 is a right-angle block, which is connected to the rotation shaft 5037, and one of the right-angle surfaces of the limit block 5039 contacts one of the limit heads 5038, and when the rotation shaft 5037 rotates 90°, the other right-angle plate of the limit block 5039 contacts the other limit head 5038, and when the flip cylinder 5033 is started, the flip cylinder 5033 drives the rotation shaft 5037 to rotate, and under the limit of the 90° flip limit assembly, the rotation shaft 5037 can only rotate 90°;

[0072] The material picking mechanism 504 includes a flip connection plate 5041, a material picking air claw seat plate 5042, a material picking air claw 5043, a mechanical claw 5044 and a material pressing block 5045. The plate surface of the flip connection plate 5041 is connected to the rotating shaft 5037, and the lower end surface of the flip connection plate 5041 is connected to the material picking air claw seat plate 5042. A plurality of material picking air claws 5043 are arranged on the plate surface of the material picking air claw seat plate 5042 at intervals, and each material picking air claw 5043 is equipped with two mechanical claws 5044 that cooperate with each other. The mechanical claws 5044 are bent in an "L" shape. Pressing blocks 5045 corresponding to the positions of the material picking air claws 5043 are arranged at intervals, and the ends of the pressing blocks 5045 extend into the inner cavity formed by two mechanical claws 5044 corresponding to their positions. When the material picking air claws 5043 are started, the mechanical claws 5044 grab the three-way pipe 6. Under the limit of the pressing blocks 5045, all the three-way pipes 6 are kept at the same height. At this time, the flipping cylinder 5033 is started, and the rotating shaft 5037 is rotated 90° to flip the vertical three-way pipe 6 into a horizontal three-way pipe 6, so that the end of the three-way pipe 6 that needs to be assembled with the short tube of the infusion set is horizontally facing the short tube of the infusion set.

[0073] In this embodiment, during the use of the three-way tube flipping device 5, the mechanical claw 5044 of the material picking mechanism 504 grabs the three-way tube 6 after loading and positioning, and all the three-way tubes 6 are kept at the same height under the limiting action of the pressing block 5045; the longitudinal cylinder 5023 of the longitudinal drive mechanism 502 contracts, driving the three-way tube 6 to move up synchronously; the flipping cylinder 5033 of the flipping drive mechanism 503 drives the rotating shaft 5037 to rotate, thereby driving the material picking claw seat plate 5042 to rotate 90°, and the three-way tube 6 is rotated to a horizontal state, and the three-way tube interface that needs to be assembled with the infusion hose faces the short tube of the infusion; the second translation cylinder 5015 of the second translation drive mechanism 501 drives the three-way tube to move toward the short tube of the infusion, so that the three-way tube is bonded to the short tube of the infusion that has been coated with glue, and the assembly is completed.

[0074] The above-mentioned specific implementations are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product form and style of the above-mentioned specific implementations. Any appropriate changes or modifications made to them by ordinary technicians in the technical field that conform to the claims of the present invention shall fall within the patent protection scope of the present invention.

Claims

1. A method for using a pretreatment system before assembling a three-way tube of an infusion set. Features: The infusion set tee tube pre-assembly pretreatment system comprises a frame and a tee tube feeding device, a tee tube material transfer device, a tee tube rotation and positioning device and a tee tube flipping device arranged on the frame, the tee tube feeding device and the tee tube rotation and positioning device are sequentially installed on the frame, the tee tube material transfer device is installed on the frame body above the tee tube feeding device and the tee tube rotation and positioning device, and the tee tube flipping device is installed on the frame body above the tee tube rotation and positioning device; The method of use includes the following steps: (1) The tee pipes are arranged in a row by a tee pipe feeding device, and the third pipe section located on the side wall of the tee pipe is oriented in the direction of the tee pipe feeding device in the tee pipe feeding device; (2) The aligned tees are transferred from the tee feeding device to the tee rotation and alignment device through the tee material transfer device; (3) The tee is rotated 180° in the tee rotation and alignment device, so that the third pipe section located on the side wall of the tee is rotated to the opposite direction to that in step (1); (4) Grab the tee through the tee turning device and turn the tee 90 degrees. The tee is lifted from the vertical state to the horizontal state. At this time, the end of the tee that needs to be bonded and assembled with the short tube of the infusion set is facing the short tube of the infusion set, and the third tube section of the side wall of the tee faces downward. Under the clamping action of the tee turning device and the gravity of the tee itself, the tee does not sink or shift sideways. (5) Use the three-way pipe flipping device to move the three-way pipe to bond it to the short tube of the infusion set that has been coated with glue.

2. A method for using a pretreatment system for a three-way tube of an infusion set before assembly according to claim 1, Features: The three-way pipe feeding device includes a three-way pipe conveying mechanism, a three-way pipe temporary storage mechanism located at the end of the three-way pipe conveying mechanism, and a displaced reciprocating moving mechanism for moving the three-way pipe temporary storage mechanism. The three-way pipe conveying mechanism is provided with P conveying channels for conveying three-way pipes, and the three-way pipe temporary storage mechanism is provided with n×P three-way pipe accommodating openings.

3. A method for using a pretreatment system before assembly of a three-way tube of an infusion set according to claim 2, Features: The three-way tube conveying mechanism is installed on the frame, and the three-way tube conveying mechanism includes a first bottom plate and a conveying channel spaced apart at the upper end of the first bottom plate; the main body of the conveying channel is a rectangular structure, and a "T"-shaped through hole is opened on the main body of the conveying channel along the length direction, the upper end of the "T"-shaped through hole is connected with the upper end surface of the conveying channel main body, the head of the three-way tube is located in the upper end opening of the "T"-shaped through hole, one end of the three-way tube to be assembled with the short tube of the infusion set is inserted into the lower end opening of the "T"-shaped through hole, and the other end of the three-way tube is located in the "T"-shaped through hole and extends in the direction of the three-way tube temporary storage mechanism; the first bottom plate and / or the conveying channel are arranged downwardly inclined in the direction in which the three-way tube temporary storage mechanism is set.

4. A method for using a pretreatment system before assembly of a three-way tube of an infusion set according to claim 3, Features: The three-way pipe temporary storage mechanism includes a base, a first slide rail, a first slider, a lower support plate, a side support plate, an upper support plate and a three-way pipe accommodating plate. The base is installed on the frame, and the upper end surface of the base is provided with a first slide rail, the direction of the first slide rail is perpendicular to the direction of the conveying channel, the first slider is installed on the first slide rail, the upper end surface of the first slider is connected to the lower end surface of the lower support plate, side support plates are arranged at both ends of the lower support plate, an upper support plate is arranged between the upper ends of the side support plates, a three-way pipe accommodating plate is installed on the upper end surface of the upper support plate, the setting direction of the three-way pipe accommodating plate is perpendicular to the direction of the conveying channel, and the three-way pipe accommodating plate is provided at intervals There is a three-way pipe accommodating opening; the offset reciprocating movement mechanism includes a first connecting plate, a first cylinder, a first cylinder mounting plate, a second cylinder and a second cylinder mounting plate, the upper end surface of the base is provided with a first cylinder mounting plate and a second cylinder mounting plate spaced apart along the length direction of the base, the first cylinder mounting plate is provided with a first cylinder, the second cylinder mounting plate is provided with a second cylinder symmetrically arranged with the first cylinder, the first connecting plate is located in the middle of the first cylinder mounting plate and the second cylinder mounting plate, one end of the first connecting plate is fixed on the lower support plate or the upper support plate, and the two side surfaces of the other end of the first connecting plate are respectively connected to the first cylinder and the second cylinder.

5. A method for using a pretreatment system before assembly of a three-way tube of an infusion set according to claim 3, Features: The three-way pipe material transfer device includes a clamping assembly, a longitudinal movement drive assembly connected to the clamping assembly and used to move the clamping assembly up and down, a sliding assembly installed on the frame and connected to the longitudinal movement drive assembly, and a horizontal movement drive assembly installed on the frame and connected to the sliding assembly.

6. A method for using a pretreatment system for the three-way tube of an infusion set before assembly according to claim 5, Features: The clamping assembly includes an air gripper mounting plate, n×P parallel air grippers spaced apart on the air gripper mounting plate, and a group of three-way pipe clamping jaws disposed on each parallel air gripper, the claw ends of the parallel air grippers face downward, and each group of three-way pipe clamping jaws includes two symmetrically disposed "L"-shaped three-way pipe clamping jaws, the positions of the three-way pipe clamping jaws correspond to the positions of the three-way pipe accommodating openings; the contact ends of the "L"-shaped three-way pipe clamping jaws are symmetrically disposed with semicircular openings; The longitudinal movement driving assembly includes a side connecting plate, a horizontal support plate, a longitudinal cylinder, a first guide shaft and a first linear bearing, wherein two side connecting plates are arranged at intervals, the upper end of the side connecting plate is connected to the sliding assembly, a horizontal support plate is fixed between the lower ends of the side connecting plates, a longitudinal cylinder arranged longitudinally is installed on the horizontal support plate, the piston rod end of the longitudinal cylinder passes downward through the horizontal support plate and is connected to the upper end surface of the air claw mounting plate, first linear bearings are arranged on the horizontal support plates on both sides of the longitudinal cylinder, a first guide shaft is installed in the first linear bearing, and the lower end of the first guide shaft is connected to the upper end surface of the air claw mounting plate; The sliding assembly includes a second slide rail, a second slider and a slide seat, wherein the second slide rail is mounted on the frame, the second slider is mounted on the second slide rail, the upper end surface of the second slider is fixedly connected to the lower end surface of the slide seat, and the slide seat is connected to the upper end of the side connecting plate of the longitudinal movement driving assembly; The horizontal movement driving assembly includes a first translation cylinder, a first translation cylinder mounting plate, a limit piece and a limit piece mounting plate. The first translation cylinder mounting plate is mounted on a frame, the first translation cylinder mounting plate is mounted with the first translation cylinder, the piston rod end of the first translation cylinder is connected with the slide seat, the extension and retraction of the first translation cylinder drives the slide seat to move along the setting direction of the second slide rail, the limit piece mounting plates are mounted on the frames on both sides of the first translation cylinder mounting plate, and the limit piece mounting plate is mounted with a limit piece for limiting the slide seat.

7. A method for using a pretreatment system for a three-way tube of an infusion set before assembly according to claim 6, Features: The three-way pipe rotation and positioning device includes a second base plate, a first translation drive mechanism arranged on the upper end of the second base plate, and a three-way pipe rotation and positioning mechanism connected to the first translation drive mechanism. The three-way pipe rotation and positioning mechanism includes a shell, a rotating shaft, a three-way pipe seat and a rotating shaft rotation drive assembly. The rotating shaft is arranged with n×P strips at intervals. The rotating shaft is installed in the shell through a bearing. The upper end of the rotating shaft passes through the shell. The upper end of the rotating shaft is installed with a three-way pipe seat. The shaft sections of the rotating shaft located inside the shell are all connected to the rotating shaft rotation drive assembly.

8. A method for using a pretreatment system before assembly of a three-way tube of an infusion set according to claim 7, Features: The first translation driving mechanism comprises a third slide rail, a third slider, a third cylinder and a second connecting plate, the third slide rail is mounted on the second bottom plate, a third slider is provided on the third slide rail, an upper end surface of the third slider is fixedly connected to a lower end surface of the shell, the third cylinder is mounted on the second bottom plate, a piston rod end of the third cylinder is connected to the second connecting plate, the second connecting plate is fixed to the shell, a first contact block is provided on the lower end surface of the shell, and a second contact block is provided on the lower end surface of the second bottom plate; The three-way pipe seat includes an insert block, a side block arranged on one side of the upper end surface of the insert block, a first shaft clamping plate arranged on the lower end surface of the insert block, and a second shaft clamping plate connected to the first shaft clamping plate through a fastener, the first shaft clamping plate and the second shaft clamping plate are clamped at the upper end of the rotating shaft, the insert block is provided with a plug hole, and the side block is provided with a limiting groove, the size of the plug hole matches the size of one end of the three-way pipe that needs to be connected to the short tube of the infusion set, and the arc surface shape of the limiting groove matches the arc surface of the pipe section on the side of the three-way pipe; The rotating shaft driving assembly includes a gear, a fourth cylinder, a cylinder seat plate, a third connecting plate, a fourth slider, a fifth slider, a slider mounting plate, a fourth slide rail and a rack. The gear sleeve is arranged on the outer wall of the rotating shaft. The cylinder seat plate is arranged on the inner wall of the shell. The fourth cylinder is installed in the inner cavity of the shell through the cylinder seat plate. The setting direction of the fourth cylinder is perpendicular to the direction of the rotating shaft. The end of the piston rod of the fourth cylinder is connected to the starting end of the third connecting plate. The cylinder barrel of the fourth cylinder is connected to the fourth slider through the slider mounting plate. The fifth slider is arranged at a distance from the cylinder barrel of the fourth cylinder through another slider mounting plate. The fourth slide rail passes through the fourth slider in sequence. and the fifth slider, the fourth slide rail is fixedly connected to the rack, the fourth slide rail and the rack are arranged in the same direction and are perpendicular to the rotating shaft, the teeth of the rack are meshed with the gears on the outer walls of all the rotating shafts, and the end of the third connecting plate is fixedly connected to the fourth slide rail and / or the rack; the upper end surface of the fourth slide rail and / or the rack is provided with a buffer positioning block, the height of the buffer positioning block is matched with the clearance between the fourth slide rail or the rack and the top surface of the shell; the lower end surface of the fourth slide rail and / or the rack is provided with cylinder telescopic positioning blocks at intervals; the side surface of the shell is provided with a long hole for the rack and the fourth slide rail to pass through; the side panels of the shell are fixed by fasteners.

9. A method for using a pretreatment system before assembly of a three-way tube of an infusion set according to claim 8, Features: The three-way pipe flipping device includes a second translation drive mechanism, a longitudinal drive mechanism, a flipping drive mechanism and a material picking mechanism. The second translation drive mechanism is installed on the frame, the second translation drive mechanism is connected to the longitudinal drive mechanism, a flipping drive mechanism is connected below the longitudinal drive mechanism, and the flipping drive mechanism is connected to the material picking mechanism.

10. A method for using a pretreatment system for the three-way tube of an infusion set before assembly according to claim 9, Features: The second translation driving mechanism comprises a fifth slide rail, a sixth slider, a slide plate, a translation cylinder connecting plate, a second translation cylinder and a second translation cylinder mounting plate, wherein at least two fifth slide rails are arranged in parallel and at intervals, the fifth slide rail is fixed to the frame, a sixth slider is arranged on the fifth slide rail, a slide plate is fixed between the upper end surfaces of the sixth slider, a translation cylinder connecting plate is arranged on the slide plate, the second translation cylinder mounting plate is fixed to the frame, a second translation cylinder is mounted on the second translation cylinder mounting plate, and the end of the piston rod of the second translation cylinder is connected to the translation cylinder connecting plate; The camming cylinder has the advantages that the camming cylinder has the advantages of being easily movable, and the like, and the like. The camming cylinder has the advantages of being easily movable, and the like, and the camming cylinder has the advantages of being easily movable. The flip driving mechanism includes a second lifting connection plate, a flip cylinder seat plate, a flip cylinder, a bearing seat, a bearing, a coupling, a rotating shaft and a 90° flip limit assembly. The second lifting connection plate is horizontally arranged and fixedly connected to the first lifting connection plate. A flip cylinder seat plate is vertically arranged downward at one end of the second lifting connection plate. A flip cylinder is installed on the flip cylinder seat plate. Two bearing seats are arranged at intervals on the lower end surface of the second lifting connection plate. Bearings are installed in the bearing seats. A rotating shaft is arranged between the two bearings. The rotating shaft is connected to the flip cylinder through a coupling. A 90° flip limit assembly is arranged on the outer side of the bearing seat away from the flip cylinder. The 90° flip limit assembly includes a limit head and a limit block, two limit heads are arranged at intervals, the upper end of the limit head is fixed on the lower end surface of the second lifting connection plate, the limit block is a right-angle block, the limit block is connected to the rotation shaft, one of the right-angle surfaces of the limit block contacts one of the limit heads, and when the rotation shaft rotates 90°, the other right-angle plate of the limit block contacts the other limit head; The material picking mechanism includes a flip connecting plate, a material picking air claw base plate, a material picking air claw, a mechanical claw and a material pressing block. The plate surface of the flip connecting plate is connected to the rotating shaft, and the lower end surface of the flip connecting plate is connected to the material picking air claw base plate. A plurality of material picking air claws are arranged at intervals on the plate surface of the material picking air claw base plate. Each material picking air claw is equipped with two mechanical claws that cooperate with each other. The mechanical claws are bent in an "L" shape. Material pressing blocks corresponding to the positions of the material picking air claws are arranged at intervals on the flip connecting plate, and the ends of the material pressing blocks extend into the inner cavity formed by the two mechanical claws corresponding to their positions.

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