Pretreatment system before assembly of infusion set short tube

Abstract

The present invention relates to the technical field of infusion set short tube and three-way tube assembly equipment, in particular to a pretreatment system before the assembly of an infusion set short tube. The pretreatment system before the assembly of the infusion set short tube includes a frame and an automatic feeding bin for the infusion set short tube, an infusion set short tube picking device, an infusion set short tube aligning device, an infusion set short tube transfer device and an infusion set short tube positioning device arranged on the frame. The automatic feeding bin for the infusion set short tube, the infusion set short tube aligning device and the infusion set short tube positioning device are arranged on the frame in sequence along the first direction. The infusion set short tube picking device is arranged above the automatic feeding bin for the infusion set short tube, the infusion set short tube transfer device is arranged above the infusion set short tube aligning device and the infusion set short tube positioning device, and the infusion set short tube transfer device moves between the infusion set short tube picking device and the infusion set short tube positioning device. The various components of the present invention have strong coherence and improved functions, thereby improving the efficiency of the pretreatment of the infusion set short tube.

Description

Technical Field

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

[0002] A disposable infusion set is a common medical consumable. After sterilization, it is used for intravenous infusion to establish a channel between the vein and the liquid medicine. When assembling the infusion set, the three-way tube needs to be assembled with the long catheter and the short catheter. During the assembly of the three-way tube and the short tube of the infusion set, the short tube of the infusion set needs to be taken out, transferred, aligned, and positioned correctly.

[0003] In the existing infusion short tube and three-way tube assembly equipment, the pretreatment system before the infusion short tube assembly generally has at least the following problems: (1) the continuity between the various processes is not strong, which affects the efficiency of the pretreatment of the infusion short tube; (2) the functionality of each component module is insufficient, for example: ① As the material taking process proceeds, the number of infusion short tubes in the automatic loading bin of the infusion short tube decreases, which makes it inconvenient to take materials; the remaining amount of infusion short tubes in the bin cannot be monitored in time, and it is inconvenient to refill materials; if the material taking mechanism takes materials at the same position for a long time, the short tube will fail to absorb the short tube, so the position of the bin needs to be fine-tuned at regular intervals, and the existing fine-tuning operation requires manual adjustment. There are inconveniences; ② The short tube picking device of the infusion set is prone to squeeze and damage the assembled infusion short tube when picking up the infusion short tube; after the picking device grabs the infusion short tube, it needs to be moved as a whole to the next process to complete the feeding operation; the picking device is not stable enough, and the infusion short tube is easy to fall; ③ The short tube aligning device of the infusion set has low efficiency in aligning the short tubes; ④ The short tube positioning device of the infusion set has a complex structural design, which is inconvenient to operate, and the short tube positioning clamping is unstable, which is easy to form scratches on the outer wall of the short tube; ⑤ Each manipulator component in the short tube transfer device of the infusion set is controlled separately, and the structural design is complex. It can only play a role in transfer, and cannot play a role in assisting the completion of other processes. Summary of the invention

[0004] The purpose of the present invention is to provide a pretreatment system for an infusion set short tube before assembly, which overcomes the shortcomings of the aforementioned prior art, has strong connectivity between the various component devices, improved functions, and improves the efficiency of pretreatment of the infusion set short tube.

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

[0006] A pretreatment system for an infusion set short tube before assembly, comprising a frame and an infusion set short tube automatic feeding bin arranged on the frame, an infusion set short tube taking device, an infusion set short tube aligning device, an infusion set short tube moving device and an infusion set short tube correcting device, wherein:

[0007] The infusion set short tube automatic feeding bin, the infusion set short tube aligning device and the infusion set short tube correcting device are sequentially arranged on the frame along the first direction, the infusion set short tube taking device is arranged above the infusion set short tube automatic feeding bin, the infusion set short tube moving device is arranged above the infusion set short tube aligning device and the infusion set short tube correcting device, and the infusion set short tube moving device moves between the infusion set short tube taking device and the infusion set short tube correcting device;

[0008] The infusion set short tube transfer device comprises a first manipulator assembly and a second manipulator assembly, wherein the first manipulator assembly is used to clamp the Mth batch of infusion set short tubes taken out from the infusion set short tube automatic feeding bin by the infusion set short tube taking device, and transfer the Mth batch of infusion set short tubes to the infusion set short tube aligning device, and the second manipulator assembly is used to assist the infusion set short tube aligning device to align the M-1th batch of infusion set short tubes, and transfer the aligned M-1th batch of infusion set short tubes to the infusion set short tube correcting device;

[0009] When the pretreatment system before assembling the infusion set short tube is in use, the infusion set short tube picking device takes out the infusion set short tube from the infusion set short tube automatic feeding bin, and each batch of the infusion set short tubes taken out contains multiple tubes. The first manipulator component of the infusion set short tube transfer device clamps the infusion set short tube on the infusion set short tube picking device and moves it to the infusion set short tube aligning device. During this process, the second manipulator of the infusion set short tube transfer device assists the infusion set short tube aligning device to complete the aligning operation of the previous batch of infusion set short tubes and clamps the aligned infusion set short tubes. The first manipulator component clamps the current batch of While the infusion set short tubes are moved to the infusion set short tube aligning device, the second manipulator assembly also clamps the aligned short tubes of the previous batch of infusion sets and moves them to the infusion set short tube positioning device. When the first manipulator assembly moves the short tubes of the infusion set of this batch to the infusion set short tube aligning device, the second manipulator assembly also moves the short tubes of the previous batch to the infusion set short tube positioning device. Then the first manipulator assembly and the second manipulator assembly are reset, and the operations of taking and delivering the tubes are repeated in a cycle. The various devices cooperate and coordinate with each other, the process continuity is strong, and the efficiency of pretreatment of the infusion set short tubes is significantly improved.

[0010] Furthermore, the automatic loading bin of the infusion pump short tube includes an outer bin, an inner bin arranged inside the outer bin, an outer bin mounting seat for supporting the outer bin and a first lifting drive mechanism for driving the inner bin to move up and down in the outer bin, the outer bin is a rectangular structure with an open upper and lower end, the upper ends of the left and right plates of the outer bin are both provided with a first opening, one side of the first opening of the left plate of the outer bin and one side of the first opening of the right plate of the outer bin are correspondingly installed with a photoelectric sensor, and the lower end of the outer bin is installed on the outer bin mounting seat; the inner bin is a rectangular structure with an open upper and rear end, the left and right plates of the inner bin are both provided with a first opening corresponding to the first opening of the outer bin. The bottom of the inner bin is connected to the first lifting drive mechanism, and the first lifting drive mechanism is installed on the outer bin mounting seat; when the loading bin is in use, the infusion short tubes are neatly arranged in the inner bin, and the infusion short tube material taking device draws the infusion short tube from the inner bin, and detects whether there is an infusion short tube in the opening through two correspondingly arranged opposite-beam photoelectric sensors. When it is detected that there is not enough infusion short tube in the opening, the first lifting drive mechanism is started to push the inner bin to move up in the inner cavity of the outer bin, and moves up until the opposite-beam photoelectric sensor detects that there is enough infusion short tube in the opening, so as to realize uninterrupted material taking operation and greatly improve the material taking efficiency;

[0011] The outer bin mounting seat comprises a bin seat plate and a rib plate, the bin seat plate comprises a horizontal seat plate and a vertical seat plate arranged at the lower end of the horizontal seat plate, the rib plate is arranged between the horizontal seat plate and the vertical seat plate, and the outer bin is mounted on the horizontal seat plate; the outer bin mounting seat also comprises a fixed support plate, a first slide rail, a first slider, a micro-cylinder and a micro-cylinder seat, the fixed support plate is installed on the frame, the end surface of the fixed support plate facing the vertical seat plate is provided with a first slide rail, the vertical seat plate is provided with a first slider matching the first slide rail, the fixed support plate is provided with a micro-cylinder seat, the micro-cylinder is installed on the micro-cylinder seat, the extension and contraction direction of the micro-cylinder is consistent with the direction of the first slide rail, and the end of the piston rod of the micro-cylinder is connected to the rib plate; at regular intervals, the micro-cylinder drives the outer bin to adjust its position along the direction of the first slide rail during the extension and contraction process, so that the infusion device short tube material taking device can smoothly absorb the infusion short tube;

[0012] The first lifting drive mechanism includes a lifting drive motor, a linear gear reducer rack, a first linear bearing and a first optical axis. The lifting drive motor is installed on the lower end surface of the horizontal seat plate. The lifting drive motor is connected to the linear gear reducer rack to drive the linear gear reducer rack to move up and down. The upper end of the linear gear reducer rack is fixedly connected to the bottom plate of the inner warehouse. A plurality of first linear bearings are installed on the horizontal seat plate. The upper end of the first optical axis is fixed on the bottom plate of the inner warehouse after passing through the first linear bearing. When the two correspondingly arranged photoelectric sensors detect that the infusion short tube in the opening is insufficient, the lifting drive motor is started, and the electric linear gear reducer rack lifts the inner warehouse upward. In this process, the first optical axis moves up along the first linear bearing to assist in lifting the inner warehouse, so that the inner warehouse moves smoothly upward in the inner cavity of the outer warehouse. The first lifting drive mechanism also includes a lifting motor photoelectric support plate, a proximity switch and an inner warehouse height detection The measuring block, a lifting motor photoelectric support plate is vertically fixed to the lower end surface of the horizontal seat plate, the installation position of the lifting motor photoelectric support plate corresponds to the linear gear reducer rack, and the lifting motor photoelectric support plate is provided with detection holes at intervals above and below, and a proximity switch is installed in the detection hole. The lower end of the linear gear reducer rack is installed with an inner warehouse height detection block, and the distance between the upper and lower proximity switches is the range in which the inner warehouse can move up and down. When the inner warehouse height detection block is aligned with the proximity switch located below, the inner warehouse is in the initial position, and when the inner warehouse height detection block is aligned with the proximity switch located above, it indicates that a new infusion short tube needs to be added to the inner warehouse; since the rear end of the inner warehouse is open, the infusion device short tube material taking device is not affected from extending from the rear end of the inner warehouse to take materials during the upward movement of the inner warehouse. At the same time, when the infusion short tube is added to the inner warehouse, since the rear end of the inner warehouse is open, the inner warehouse can be moved down while the infusion short tube is added, and the material filling is more convenient and smooth;

[0013] The upper ends of the left and right plates of the inner bin are provided with limiting outer edges, and when the inner bin height detection block is aligned with the proximity switch located below, the limiting outer edges rest on the upper edge of the outer bin; the size of the inner bin matches the inner cavity size of the outer bin.

[0014] Furthermore, the infusion device short tube material picking device comprises a material picking mounting plate, an infusion device short tube suction mechanism for sucking the infusion device short tube, a second lifting drive mechanism for driving the infusion device short tube suction mechanism to move up and down, and a first translation drive mechanism for driving the infusion device short tube suction mechanism to move horizontally, wherein the infusion device short tube suction mechanism is located below the material picking mounting plate, the second lifting drive mechanism is arranged on the material picking mounting plate and connected with the infusion device short tube suction mechanism, and the first translation drive mechanism is arranged on the material picking mounting plate and connected with the infusion device short tube suction mechanism; when in use, the material picking mounting plate is installed on the frame of the assembly equipment of the infusion device short tube and the three-way pipe, and the infusion device short tube suction mechanism is driven by the second lifting drive mechanism to move down to the inner bin of the infusion device short tube automatic feeding bin, and after the infusion device short tube suction mechanism flexibly absorbs the infusion device short tube, the second lifting drive mechanism drives the infusion device short tube to move up, and then the second lifting drive mechanism and the infusion device short tube suction mechanism are synchronously pushed outward by the first translation drive mechanism, so that the first manipulator assembly of the infusion device short tube transfer device can smoothly clamp the infusion device short tube.

[0015] Furthermore, a second opening is provided on the material taking mounting plate, and parallel second slide rails are installed on both sides of the second opening; the second lifting drive mechanism includes a first slide plate, a first slide seat, a first lifting cylinder, a first lifting guide shaft and a second linear bearing, the lower end surface of the first slide plate is provided with a first slide seat, the first slide seat is installed on the second slide rail corresponding to its position, the middle part of the first slide plate is provided with a first lifting cylinder, the piston rod end of the first lifting cylinder is connected to the infusion device suction mechanism after passing through the second opening downward, a plurality of second linear bearings are provided on the first slide plate, the second linear bearings are distributed around the first lifting cylinder, the first lifting guide shaft is installed in the second linear bearing, the lower end of the first lifting guide shaft is connected to the infusion device suction mechanism after passing through the second opening downward, and in the process of the infusion short tube suction mechanism driven by the first lifting cylinder to move up and down as a whole, the first lifting guide shaft greatly improves the stability of the movement;

[0016] The first translation drive mechanism includes a first translation cylinder and a first translation cylinder seat plate, the first translation cylinder seat plate is arranged on the material taking mounting plate, the first translation cylinder is installed on the first translation cylinder seat plate, the extension direction of the first translation cylinder is consistent with the direction of the second slide rail, the end of the piston rod of the first translation cylinder is connected to the first slide plate, the first translation cylinder extends, and pushes the second lifting drive mechanism and the infusion short tube suction mechanism to move outward synchronously;

[0017] The infusion short tube suction mechanism comprises a suction nozzle bearing seat plate, a third linear bearing, a suction nozzle guide shaft, a suction nozzle fixing plate and a suction nozzle tube, the upper end surface of the suction nozzle bearing seat plate is connected with the first lifting cylinder and the first lifting guide shaft, a plurality of groups of third linear bearings are arranged at intervals on the suction nozzle bearing seat plate, a suction nozzle guide shaft is installed in the third linear bearing, a clamping plate is arranged on the upper end of the suction nozzle guide shaft, a buffer spring is arranged between the clamping plate and the third linear bearing, a suction nozzle fixing plate is horizontally arranged on the lower end of the suction nozzle guide shaft, a suction nozzle tube for sucking the infusion short tube from the silo is arranged on the suction nozzle fixing plate, and the suction nozzle guide shaft below the clamping plate extends downwardly from the third linear bearing under the action of gravity. When the first lifting cylinder is extended, the suction nozzle tube moves down to contact with the infusion short tube. At this time, the buffer spring plays a buffering role to prevent the suction nozzle tube from seriously pressing down the infusion short tube. The suction nozzle tube adsorbs one end of the infusion short tube under the action of the external suction device, and drives the infusion short tube to move up and out of the inner warehouse under the action of the first lifting cylinder;

[0018] Each group of third linear bearings includes two third linear bearings, and the lower ends of the nozzle guide shafts in the two third linear bearings in each group are connected to the same nozzle fixing plate; the upper part of the nozzle pipe is connected to the air duct of the external air suction equipment; the lower end of the material picking mounting plate is provided with a pipeline distributor for passing the air duct of the external air suction equipment.

[0019] Furthermore, the infusion set short tube alignment device includes a supporting base plate, a support shaft arranged on the upper end surface of the supporting base plate, a connecting block arranged on the upper end of the support shaft, an alignment seat plate arranged on the upper end of the connecting block, a catheter support plate arranged on the upper end surface of the alignment seat plate, and an alignment mechanism arranged on the lower end surface of the alignment seat plate, the catheter support plates are arranged in at least two groups at intervals, and a plurality of catheter placement grooves are arranged at intervals on the upper end of the catheter support plates; the alignment mechanism includes an alignment guide shaft, a third linear bearing, an alignment cylinder, a cylinder fixing plate, a connecting plate and a catheter top alignment plate, the arrangement direction of the alignment guide shaft is perpendicular to the arrangement direction of the catheter support plate, the alignment guide shaft is installed on the connecting block, and both ends of the alignment guide shaft are provided with A catheter top alignment plate is provided with a third linear bearing, and the alignment guide shaft is inserted into the third linear bearing. The lower end surface of the alignment seat plate is provided with two cylinder fixing plates, and the lower end of the catheter top alignment plate is provided with a connecting plate corresponding to the position of the cylinder fixing plate adjacent thereto. The cylinder barrel of the alignment cylinder is fixed on the cylinder fixing plate, and the piston rod of the alignment cylinder is fixed on the connecting plate adjacent thereto. When in use, the short tube of the infusion set is moved to the top of the alignment seat plate, and supported by two sets of catheter support plates arranged at intervals. The alignment cylinder is started, and the two catheter top alignment plates move relative to each other, respectively abutting against the two ends of the short tube of the infusion set to align the short tube of the infusion set. The entire structural design is simple and the alignment efficiency is high.

[0020] Furthermore, each set of catheter support plates is composed of multiple parallel plate bodies, each of which is provided with a catheter placement groove, and the positions of the catheter placement grooves between the plate bodies correspond to each other; at least one catheter top plate is provided with a catheter passing groove at intervals on the upper end, and the position of the catheter passing groove corresponds to the position of the catheter placement groove one by one, and the bottom of the catheter passing groove is located above the top of the catheter placement groove. The short tube of the infusion set moves along the catheter passing groove to just above the catheter support plate, so that the short tube of the infusion set can accurately fall into the catheter placement groove.

[0021] Furthermore, the short tube alignment device of the infusion set includes a short tube conveying mechanism and two alignment mechanisms arranged at front and rear intervals on one side of the short tube conveying mechanism, the alignment mechanism includes a lower alignment component and an upper alignment component, the short tube of the infusion set is placed on the short tube conveying mechanism at intervals, one end of the short tube of the infusion set extends out of the short tube conveying mechanism and extends between the lower alignment component and the upper alignment component, the short tube of the infusion set is supported by the short tube conveying mechanism, the head of the short tube of the infusion set is aligned through the lower alignment component and the upper alignment component of the first alignment mechanism, so as to facilitate the glue coating device to glue the head of the short tube of the infusion set, after the glue coating is completed, the lower alignment component and the upper alignment component of the first alignment mechanism are separated, the short tube conveying mechanism sends the short tube of the infusion set to the second alignment mechanism, and the head of the short tube of the infusion set coated with glue is aligned again through the lower alignment component and the upper alignment component of the second alignment mechanism, so as to facilitate the subsequent assembly operation with the three-way pipe;

[0022] The lower alignment component comprises a lower alignment cylinder mounting plate, a lower alignment cylinder, a lower alignment support plate, a lower linear bearing, a lower optical axis, a lower alignment fork plate mounting plate and a lower alignment fork plate, the lower alignment cylinder mounting plate is mounted on the frame, the lower alignment cylinder is mounted on the upper end surface of the lower alignment cylinder mounting plate, the upper end of the cylinder barrel of the lower alignment cylinder is fixedly connected to the horizontally arranged lower alignment support plate, the lower linear bearing is mounted on the lower alignment support plate, the lower linear bearing is located on both sides of the lower alignment cylinder, the lower optical axis is inserted into the lower linear bearing, the upper end of the lower optical axis and the upper end of the piston rod of the lower alignment cylinder are both fixedly connected to the horizontally arranged lower alignment fork plate mounting plate, the lower alignment fork plate is mounted on the upper end surface of the lower alignment fork plate mounting plate, and a plurality of "V"-shaped limit openings are spaced apart at the upper end of the lower alignment fork plate;

[0023] The upper alignment assembly comprises an upper alignment cylinder mounting plate, an upper alignment cylinder, an upper alignment fork plate mounting plate and an upper alignment fork plate, wherein the upper alignment cylinder mounting plate is mounted on the frame, an upper alignment cylinder is mounted on the lower end surface of the upper alignment cylinder mounting plate, a lower end of a piston rod of the upper alignment cylinder is connected to a horizontally arranged upper alignment fork plate mounting plate, an upper alignment fork plate is mounted on the lower end surface of the upper alignment fork plate mounting plate, and an inverted "V"-shaped limiting opening corresponding to the "V"-shaped limiting opening is spaced apart at the lower end of the upper alignment fork plate;

[0024] When the alignment mechanism is in use, the lower alignment assembly and the upper alignment assembly are started at the same time, the lower alignment cylinder extends to push the lower alignment fork plate up, and each short infusion tube is supported by a "V"-shaped limit opening, the upper alignment cylinder extends to push the upper alignment fork plate down, and the inverted "V"-shaped limit opening of the upper alignment fork plate and the "V"-shaped limit opening of the lower alignment fork plate cooperate to form a limit opening, and each short infusion tube is limited in a limit opening, which is convenient for gluing operations or assembly with the three-way pipe.

[0025] Furthermore, the lower positioning fork plate is composed of N plate bodies arranged at intervals, and the upper positioning fork plate is composed of N±1 plate bodies arranged at intervals, and the plate bodies of the lower positioning fork plate and the upper positioning fork plate are staggered to enhance the limiting stability and support stability of the short tube of the infusion pump; the "V"-shaped limiting opening and the inverted "V"-shaped limiting opening are both smoothly arranged to effectively prevent scratches on the outer wall of the infusion short tube; short tube support plates are correspondingly arranged at both ends of the conveyor belt width direction of the short tube conveying mechanism, and the upper end of the short tube support plate is provided with a "V"-shaped groove, and the short tube of the infusion pump is supported in the corresponding two "V"-shaped grooves to enhance the stability of the support of the main body of the infusion short tube; a short tube gluing device is provided on the side of one of the positioning mechanisms away from the short tube conveying mechanism, and a pre-assembly pretreatment system for the three-way tube of the infusion pump is provided on the side of the other positioning mechanism away from the short tube conveying mechanism, so as to enhance the continuity between the short tube positioning device of the infusion pump and the gluing process and the assembly process.

[0026] Furthermore, the infusion set short tube transporting device comprises a transport mounting plate, a second translation driving mechanism, a third lifting driving mechanism, a first manipulator assembly and a second manipulator assembly, the second translation driving mechanism is mounted on the frame, the transport mounting plate is connected to the second translation driving mechanism, a first manipulator assembly for clamping the infusion set short tube is mounted at the lower end of the transport mounting plate, a third lifting driving mechanism is mounted on the transport mounting plate, a second manipulator assembly for clamping the infusion set short tube is mounted below the third lifting driving mechanism, the first manipulator assembly is located in front of the second manipulator assembly, the first manipulator assembly grabs the Mth batch of infusion set short tubes, and transfers the Mth batch of infusion set short tubes to the first manipulator assembly. A batch of infusion set short tubes is transferred from the infusion set short tube picking device to the infusion set short tube aligning device, the second manipulator assembly grabs the M-1th batch of infusion set short tubes, assists in aligning the M-1th batch of infusion set short tubes on the infusion set short tube aligning device, and then transfers them to the infusion set short tube alignment device. When the first manipulator assembly just moves to the infusion set short tube picking device, the second manipulator assembly is just located above the infusion set short tube alignment device and assists in aligning. When the first manipulator assembly grabs the Mth batch of infusion set short tubes and moves them to the infusion set short tube aligning device, the second manipulator assembly just moves the M-1th batch of infusion set short tubes to the infusion set short tube alignment device.

[0027] The second translation driving mechanism comprises a third slide rail, a second sliding block, a second translation cylinder and a second translation cylinder seat plate, the third slide rail is installed on the frame, the second sliding block is slidably set on the third slide rail, the second sliding block is fixedly connected to the transfer mounting plate, one side of the transfer mounting plate is connected to the end of the piston rod of the second translation cylinder, the cylinder barrel of the second translation cylinder is installed on the second translation cylinder seat plate, the second translation cylinder seat plate is installed on the frame, the extension and contraction direction of the second translation cylinder is consistent with the setting direction of the third slide rail, and the second translation cylinder drives the mounting plate to move along the third slide rail when extending and contracting, and synchronously drives the first manipulator assembly and the second manipulator assembly to move, the movement trajectory of the first manipulator assembly is to go back and forth between the infusion device short tube material taking device and the infusion device short tube aligning device, and the movement trajectory of the second manipulator assembly is to go back and forth between the infusion device short tube aligning device and the infusion device short tube correcting device;

[0028] The first manipulator assembly includes a first air claw mounting plate, a first parallel air claw, a first clamping claw mounting plate, a second clamping claw mounting plate, a first clamping claw, a second clamping claw, a fourth slide rail and a third slide block. The upper end of the first air claw mounting plate is fixed to the lower end surface of the translation mounting plate. The first parallel air claw is mounted on the first air claw mounting plate. The two claw plates of the first parallel air claw face downward. The first clamping claw mounting plate is connected to one of the claw plates of the first parallel air claw, and the second clamping claw mounting plate is connected to the other claw plate. The first clamping claw is mounted on the lower end of the first clamping claw mounting plate, and the second clamping claw is mounted on the lower end of the second clamping claw mounting plate. Two clamps, the first clamp and the second clamp cooperate to clamp the short tube of the infusion set, the first clamp mounting plate is provided with a fourth slide rail, the second clamp mounting plate is provided with a third slide rail corresponding to the fourth slide rail, after the first manipulator assembly clamps the short tube of the infusion set from the short tube material taking device of the infusion set, the second translation cylinder is actuated, the first manipulator assembly moves toward the short tube aligning device of the infusion set, when the first parallel air claw of the first manipulator assembly is opened, the first clamp mounting plate and the second clamp mounting plate are misaligned, the first clamp and the second clamp are opened accordingly, and the short tube of the infusion set is placed on the catheter support plate of the short tube aligning device of the infusion set;

[0029] The third lifting drive mechanism includes a second lifting cylinder, a fourth linear bearing and a second lifting guide shaft. The second lifting cylinder is longitudinally mounted on the transport mounting plate. A fourth linear bearing is arranged on the transport mounting plate body on both sides of the second lifting cylinder. The second lifting guide shaft is installed in the fourth linear bearing. The lower end of the second lifting cylinder and the lower end of the second lifting guide shaft are both connected to the second manipulator assembly. The extension and contraction of the second lifting cylinder drives the second manipulator assembly to move up and down. When the second manipulator assembly moves downward above the infusion set short tube aligning device, it can assist the infusion set short tube aligning device to limit and align the infusion set short tube. After the infusion set short tube is aligned, the second manipulator assembly grabs the infusion set short tube, the second lifting cylinder contracts, the second manipulator assembly grabs the infusion set short tube and moves upward, and the second translation cylinder extends to drive the second manipulator assembly to move toward the infusion set short tube positioning device.

[0030] The second manipulator assembly includes a second air claw mounting plate, a second parallel air claw, a third clamping claw mounting plate, a fourth clamping claw mounting plate, a third clamping claw, a fourth clamping claw, a fifth slide rail and a fourth slider. The second air claw mounting plate is horizontally arranged, and the upper end surface of the second air claw mounting plate is connected to the second lifting guide shaft and the end of the piston rod of the second lifting cylinder. At least two groups of second parallel air claws are arranged at intervals at the lower end of the second air claw mounting plate, and the claw plates of the second parallel air claws face downward. The third clamping claw mounting plate is connected to one of the claw plates of the second parallel air claws, and the fourth clamping claw mounting plate is connected to the other claw plate. The third clamping claw is installed at the lower end of the third clamping claw mounting plate, and the fourth clamping claw is installed at the lower end of the fourth clamping claw mounting plate. The third clamping claw and the fourth clamping claw cooperate to clamp the short tube of the infusion set. The fifth slide rail is arranged on the third clamping claw mounting plate, and the fourth clamping claw mounting plate is arranged with a The fourth sliding block corresponds to the fifth slide rail, and the opening and closing of the second parallel air claw drives the misalignment and overlap of the third clamp mounting plate and the fourth clamp mounting plate, thereby driving the opening and closing of the third clamp and the fourth clamp. When the second translation cylinder drives the first manipulator assembly to move toward the infusion pump short tube material picking device, the second manipulator assembly moves to above the catheter support plate of the infusion pump short tube alignment device, and the second translation cylinder extends out, and the second parallel air claw opens. At this time, the third clamp and the fourth clamp are between the two sides of the infusion pump short tube corresponding to their positions, forming a position limit for the infusion pump short tube and assisting the alignment operation of the infusion pump short tube. After the infusion pump short tube is aligned, the second parallel air claw closes, and the third clamp and the fourth clamp close to clamp the infusion pump short tube, the second lifting cylinder contracts, and the second translation cylinder starts to move the second manipulator assembly to the infusion pump short tube positioning device.

[0031] Furthermore, the first jaw mounting plate, the second jaw mounting plate, the third jaw mounting plate and the fourth jaw mounting plate are arranged in parallel, and the first jaw and the second jaw are both in a "7"-shaped structure. The "7"-shaped longitudinal plates of the first jaw and the second jaw play a major clamping role, and the third jaw and the fourth jaw are in an inverted "U"-shaped or "F"-shaped structure; the limiting effect on the short tube of the infusion set during the auxiliary alignment process is improved, and the stability during the clamping of the short tube of the infusion set is improved.

[0032] The beneficial effects of the present invention are as follows: compared with the prior art, the pretreatment system for the infusion set short tube before assembly of the present invention has the following advantages: (1) When the pretreatment system for the infusion set short tube before assembly is in use, the infusion set short tube picking device picks up the infusion set short tube from the infusion set short tube automatic loading bin, and each batch of the infusion set short tubes taken out contains multiple tubes. The first manipulator component of the infusion set short tube transfer device clamps the infusion set short tube on the infusion set short tube picking device and moves it to the infusion set short tube aligning device. During this process, the second manipulator of the infusion set short tube transfer device assists the infusion set short tube aligning device in completing the aligning operation of the previous batch of infusion set short tubes and clamps the aligned infusion set short tubes. At the same time as the first manipulator component clamps the infusion set short tube of the current batch and moves it to the infusion set short tube aligning device, When the first manipulator assembly moves the short tubes of the infusion sets of the current batch to the infusion sets short tube aligning device, the second manipulator assembly also moves the short tubes of the infusion sets of the previous batch to the infusion sets short tube aligning device. Then the first manipulator assembly and the second manipulator assembly are reset, and the operation of taking out and delivering the tubes is repeated in a cycle. The various devices cooperate and coordinate with each other, the process continuity is strong, and the efficiency of the pretreatment of the infusion sets short tubes is significantly improved; (2) The structures of the automatic feeding bin of the infusion sets short tubes, the infusion sets short tube taking device, the infusion sets short tube aligning device, the infusion sets short tube transporting device and the infusion sets short tube aligning device are all optimized and designed, the functionality is greatly improved, and the coordination effect between the devices is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the pretreatment system before the short tube of the infusion set of the present invention is assembled;

[0034] Figure 2 It is a schematic diagram of the overall structural layout of the pretreatment system of the infusion set short tube before assembly of the present invention after the frame is removed;

[0035] Figure 3 It is a schematic diagram of the overall structure of the automatic loading bin of the infusion set short tube of the present invention;

[0036] Figure 4 It is a schematic diagram of the overall structure of the automatic loading bin of the infusion set short tube from another angle of the present invention;

[0037] Figure 5 It is a structural schematic diagram of the automatic loading bin of the infusion set short tube of the present invention after removing the outer bin;

[0038] Figure 6 It is a schematic diagram of the overall structure of the short tube material taking device of the infusion set of the present invention;

[0039] Figure 7 It is a schematic diagram of the overall structure of the short tube material taking device of the infusion set of the present invention from another angle;

[0040] Figure 8 It is a schematic diagram of the overall structure of the short tube aligning device for an infusion set of the present invention;

[0041] Fig. 9 It is a schematic diagram of the overall structure of the short tube aligning device for infusion sets of the present invention from another angle;

[0042] Fig.10 It is a schematic diagram of the overall structure of the short tube transport device for an infusion set of the present invention;

[0043] Fig.11 It is a schematic diagram of the overall structure of the short tube transport device for an infusion set of the present invention from another angle;

[0044] Fig.12 It is a structural schematic diagram of a state in which the infusion set short tube moving device and the infusion set short tube aligning device of the present invention are used in cooperation;

[0045] Fig.13 It is a structural schematic diagram of another state when the infusion set short tube moving device and the infusion set short tube aligning device of the present invention are used in cooperation;

[0046] Fig.14 It is a schematic diagram of the overall structure of the short tube correcting device for an infusion set of the present invention;

[0047] Fig.15 It is a schematic diagram of the overall structure of the short tube correcting device for an infusion set from another angle;

[0048] Fig.16 It is a schematic structural diagram of the positioning mechanism of the short tube positioning device of the infusion set of the present invention;

[0049] Among them, 1 frame, 2 infusion short tube automatic feeding bin, 201 outer bin, 202 inner bin, 203 outer bin mounting seat, 2031 bin seat plate, 2032 rib plate, 2033 fixed support plate, 2034 first slide rail, 2035 first slider, 2036 micro cylinder, 2037 micro cylinder seat, 204 first opening, 205 photoelectric sensor, 206 long strip opening, 207 lifting drive motor, 208 linear gear reducer rack, 209 first linear bearing, 210 first optical axis, 211 lifting motor photoelectric support plate, 212 proximity switch, 213 inner bin height detection block, 214 detection hole, 215 limit outer edge, 3 infusion short tube material taking device, 301 taking mounting plate, 3011 second opening 3012 The second slide rail, 3013 pipeline distributor, 302 infusion short tube suction mechanism, 3021 nozzle bearing seat plate, 3022 third linear bearing, 3023 nozzle guide shaft, 3024 nozzle fixing plate, 3025 nozzle tube, 3026 card plate, 303 second lifting drive mechanism, 3031 first slide plate, 3032 first slide seat, 3033 first lifting cylinder, 3034 first lifting guide shaft, 3035 second linear bearing, 304 first translation drive mechanism, 3041 first translation cylinder, 3042 first translation cylinder seat plate, 4 infusion short tube alignment device, 401 support bottom plate, 402 support shaft, 403 connecting block, 404 alignment seat plate, 405 catheter support plate, 406 catheter placement groove, 407 alignment guide shaft, 408 8 the third linear bearing, 409 the alignment cylinder, 410 the cylinder fixing plate, 411 the connecting plate, 412 the catheter top alignment plate, 413 the catheter passage groove, 5 the infusion short tube transfer device, 501 the first manipulator assembly, 5011 the first air claw mounting plate, 5012 the first parallel air claw, 5013 the first clamping jaw mounting plate, 5014 the second clamping jaw mounting plate, 5015 the first clamping jaw, 5016 the second clamping jaw, 5017 the fourth slide rail, 5018 the third slider, 502 the second manipulator assembly, 5021 the second air claw mounting plate, 5022 the second parallel air claw, 5023 the third clamping jaw mounting plate, 5024 the fourth clamping jaw mounting plate, 5025 the third clamping jaw, 5026 the fourth clamping jaw, 5027 the fifth slide rail, 5028 the fourth slider, 50 3. Transport mounting plate, 504. Second translation drive mechanism, 5041. Third slide rail, 5042. Second slide block, 5043. Second translation cylinder, 5044. Second translation cylinder seat plate, 505. Third lifting drive mechanism, 5051. Second lifting cylinder, 5052. Fourth linear bearing, 5053. Second lifting guide shaft, 6. Short tube positioning device for infusion set, 601. Conveying mechanism, 6011. Conveying belt, 6012. Short tube support plate, 6013. "V" shaped slot, 602. Lower positioning assembly, 6021. Lower positioning cylinder mounting plate, 6022. Lower positioning cylinder, 6023. Lower positioning support plate, 6024. Lower linear bearing, 6025. Lower optical axis, 6026. Lower positioning fork plate mounting plate, 6027. Lower positioning fork plate, 6028. "V" shaped limiting opening,603 upper positioning assembly, 6031 upper positioning cylinder mounting plate, 6032 upper positioning cylinder, 6033 upper positioning fork plate mounting plate, 6034 upper positioning fork plate, 6035 inverted "V" type limit opening. DETAILED DESCRIPTION

[0050] 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.

[0051] like Figure 1 and Figure 2 In the embodiment shown, a pretreatment system for an infusion set short tube before assembly includes a frame 1 and an infusion set short tube automatic feeding bin 2 arranged on the frame 1, an infusion set short tube taking device 3, an infusion set short tube aligning device 4, an infusion set short tube moving device 5 and an infusion set short tube correcting device 6, wherein:

[0052] The infusion set short tube automatic feeding bin 2, the infusion set short tube aligning device 4 and the infusion set short tube correcting device 6 are sequentially arranged on the frame along the X-axis direction, the infusion set short tube material taking device 3 is arranged above the infusion set short tube automatic feeding bin 2, the infusion set short tube moving device 5 is arranged above the infusion set short tube aligning device 4 and the infusion set short tube correcting device 6, and the infusion set short tube moving device 5 moves between the infusion set short tube material taking device 3 and the infusion set short tube correcting device 6;

[0053] The infusion set short tube transfer device 5 comprises a first manipulator assembly 501 and a second manipulator assembly 502, wherein the first manipulator assembly 501 is used to clamp the Mth batch of infusion set short tubes taken out from the infusion set short tube automatic feeding bin 2 by the infusion set short tube taking device 3, and transfer the Mth batch of infusion set short tubes to the infusion set short tube aligning device, and the second manipulator assembly is used to assist the infusion set short tube aligning device 4 to align the M-1th batch of infusion set short tubes, and transfer the aligned M-1th batch of infusion set short tubes to the infusion set short tube correcting device 6;

[0054] When the pretreatment system before assembling the infusion set short tube is in use, the infusion set short tube picking device 3 takes out the infusion set short tube from the infusion set short tube automatic loading bin 1, and each batch of infusion set short tubes taken out contains multiple tubes. The first manipulator component 501 of the infusion set short tube transporting device 5 clamps the infusion set short tube on the infusion set short tube picking device 3 and moves it to the infusion set short tube aligning device 4. During this process, the second manipulator component 502 of the infusion set short tube transporting device 5 assists the infusion set short tube aligning device 4 to complete the aligning operation of the previous batch of infusion set short tubes and clamps the aligned infusion set short tubes. The first manipulator component 501 clamps the current batch of While the infusion set short tubes are being moved to the infusion set short tube aligning device 4, the second manipulator assembly 502 also clamps the aligned short tubes of the previous batch of infusion sets and moves them to the infusion set short tube positioning device 6. When the first manipulator assembly 501 moves the infusion set short tubes of this batch to the infusion set short tube aligning device 4, the second manipulator assembly 502 also moves the short tubes of the previous batch to the infusion set positioning device 6. Then the first manipulator assembly 501 and the second manipulator assembly 502 are reset, and the operations of taking and delivering the tubes are repeated in a cycle. The various devices cooperate and coordinate with each other, the process continuity is strong, and the efficiency of pretreatment of the infusion set short tubes is significantly improved.

[0055] In this embodiment, Figure 3-5 As shown, the infusion short tube automatic loading bin 2 includes an outer bin 201, an inner bin 202 arranged inside the outer bin 201, an outer bin mounting seat 203 for supporting the outer bin 201 and a first lifting drive mechanism for driving the inner bin 202 to move up and down in the outer bin 201, the outer bin 201 is a rectangular structure with an open upper and lower ends, and the upper ends of the left and right plates of the outer bin 201 are both provided with a first opening 204, and one side of the first opening 204 of the left plate of the outer bin 201 and one side of the first opening 204 of the right plate of the outer bin 201 are correspondingly installed with a photoelectric sensor 205, and the lower end of the outer bin 201 is installed on the outer bin mounting seat 203; the inner bin 202 is a rectangular structure with an open upper and rear ends, and the left and right plates of the inner bin 202 are both provided with a first opening 204 corresponding to the outer bin 20 1, the bottom of the inner bin 202 is connected to the first lifting drive mechanism, and the first lifting drive mechanism is installed on the outer bin mounting seat 203; when the loading bin is in use, the infusion short tubes are neatly arranged in the inner bin 202, and the infusion short tube material taking device 3 draws the infusion short tube from the inner bin 202, and detects whether there is an infusion short tube in the first opening 204 through two correspondingly arranged opposite-type photoelectric sensors 205. When it is detected that there is not enough infusion short tube in the first opening 204, the first lifting drive mechanism is started to push the inner bin 202 to move up in the inner cavity of the outer bin 201, and move up until the opposite-type photoelectric sensor 205 detects that there is enough infusion short tube in the first opening 204, so as to realize uninterrupted material taking operation and greatly improve the material taking efficiency;

[0056] The outer bin mounting seat 203 includes a bin seat plate 2031 and a rib plate 2032. The bin seat plate 2031 includes a horizontal seat plate and a vertical seat plate arranged at the lower end of the horizontal seat plate. The rib plate 2032 is arranged between the horizontal seat plate and the vertical seat plate. The outer bin 201 is installed on the horizontal seat plate. The outer bin mounting seat 203 also includes a fixed support plate 2033, a first slide rail 2034, a first slider 2035, a micro-motion cylinder 2036 and a micro-motion cylinder seat 2037. The fixed support plate 2033 is installed on the frame 1. The end surface of the fixed support plate 2033 facing the vertical seat plate is provided with a first The slide rail 2034, a first slider 2035 matching with the first slide rail 2034 is arranged on the vertical seat plate, a micro-cylinder seat 2037 is arranged on the fixed support plate 2033, a micro-cylinder 2036 is installed on the micro-cylinder seat 2037, the telescopic direction of the micro-cylinder 2036 is consistent with the direction of the first slide rail 2034, and the end of the piston rod of the micro-cylinder 2036 is connected to the rib plate 2032; at regular intervals, the micro-cylinder 2036 drives the outer bin 201 to adjust its position along the direction of the first slide rail 2034 during the telescopic process, so that the infusion short tube taking device 3 can smoothly absorb the infusion short tube;

[0057] The first lifting drive mechanism includes a lifting drive motor 207, a linear gear reducer rack 208, a first linear bearing 209 and a first optical axis 210. The lifting drive motor 207 is installed on the lower end surface of the horizontal seat plate. The lifting drive motor 207 is connected to the linear gear reducer rack 208 to drive the linear gear reducer rack 208 to move up and down. The upper end of the linear gear reducer rack 208 is fixedly connected to the bottom plate of the inner warehouse 202. A plurality of first linear bearings 209 are installed on the horizontal seat plate. The upper end of the first optical axis 210 passes through the first linear bearing 209. A linear bearing 209 is fixed on the bottom plate of the inner bin 202. When the two correspondingly arranged photoelectric sensors 205 detect that there is insufficient infusion tube in the first opening 204, the lifting drive motor 207 is started, and the electric linear gear reducer rack 208 pushes the inner bin 202 upward. During this process, the first optical axis 210 moves up along the first linear bearing 209 to assist in lifting the inner bin 202, so that the inner bin 202 moves smoothly upward in the inner cavity of the outer bin 201; the first lifting drive mechanism also includes a lifting motor photoelectric support plate 211, a proximity switch 212 and an inner bin A height detection block 213 is vertically fixed to the lower end surface of the horizontal seat plate with a lifting motor photoelectric support plate 211, the installation position of the lifting motor photoelectric support plate 211 corresponds to the linear gear reducer rack 208, and the lifting motor photoelectric support plate 211 is spaced apart from top to bottom with detection holes 214, and a proximity switch 212 is installed in the detection hole 214. The lower end of the linear gear reducer rack 208 is installed with an inner bin height detection block 213, and the distance between the upper and lower proximity switches 212 is the range in which the inner bin 202 can move up and down. When the inner bin height detection block 213 When aligned with the proximity switch 212 located below, the inner bin 202 is located at the initial position. When the inner bin height detection block 213 is aligned with the proximity switch 212 located above, it indicates that a new infusion short tube needs to be added to the inner bin 202. Since the rear end of the inner bin 202 is open, the infusion device short tube material taking device 3 is not affected from extending from the rear end of the inner bin 202 to take materials during the upward movement of the inner bin 202. At the same time, when adding the infusion short tube to the inner bin 202, since the rear end of the inner bin 202 is open, the inner bin 202 can be moved down while adding the infusion short tube, and the material filling is more convenient and smooth.

[0058] The upper ends of the left and right plates of the inner warehouse 202 are provided with limiting outer edges 215, and when the inner warehouse height detection block 213 is aligned with the proximity switch 212 located below, the limiting outer edge 215 rests on the upper edge of the outer warehouse 201; the size of the inner warehouse 202 matches the inner cavity size of the outer warehouse 201.

[0059] In this embodiment, Figure 6 and Figure 7As shown, the infusion tube short tube material taking device 3 includes a material taking mounting plate 301, an infusion tube short tube suction mechanism 302 for sucking the infusion tube, a second lifting drive mechanism 303 for driving the infusion tube short tube suction mechanism 302 to move up and down, and a first translation drive mechanism 304 for driving the infusion tube short tube suction mechanism 302 to move horizontally, the infusion tube short tube suction mechanism 302 is located below the material taking mounting plate 301, the second lifting drive mechanism 303 is arranged on the material taking mounting plate 301 and connected to the infusion tube short tube suction mechanism 302, the first translation drive mechanism 304 is arranged on the material taking mounting plate 301 and connected to the infusion tube short tube suction mechanism Mechanism 302 is connected; when in use, the material taking mounting plate 301 is installed on the frame 1 of the assembly equipment of the infusion set short tube and the three-way tube, and the infusion set short tube suction mechanism 302 is driven by the second lifting drive mechanism 303 to move down to the inner bin 202 of the infusion set short tube automatic feeding bin 2, and after the infusion set short tube suction mechanism 302 flexibly absorbs the infusion set short tube, the second lifting drive mechanism 303 drives the infusion set short tube to move upward, and then the second lifting drive mechanism 303 and the infusion set short tube suction mechanism 302 are synchronously pushed outward through the first translation drive mechanism 304, so that the first manipulator assembly 501 of the infusion set short tube moving device 5 can smoothly clamp the infusion set short tube.

[0060] In this embodiment, the material taking mounting plate 301 is provided with a second opening 3011, and parallel second slide rails 3012 are installed on both sides of the second opening 3011; the second lifting drive mechanism 303 includes a first slide plate 3031, a first slide seat 3032, a first lifting cylinder 3033, a first lifting guide shaft 3034 and a second linear bearing 3035, the lower end surface of the first slide plate 3031 is provided with a first slide seat 3032, the first slide seat 3032 is installed on the second slide rail 3012 corresponding to its position, the middle part of the first slide plate 3031 is provided with a first lifting cylinder 3033, and the first lifting cylinder 3033 is installed. The end of the piston rod of 3 passes downward through the second opening 3011 and is connected to the infusion device suction mechanism 302. A plurality of second linear bearings 3035 are arranged on the first slide plate 3031. The second linear bearings 3035 are distributed around the first lifting cylinder 3033. A first lifting guide shaft 3034 is installed in the second linear bearing 3035. The lower end of the first lifting guide shaft 3034 passes downward through the second opening 3011 and is connected to the infusion device suction mechanism 302. In the process of the infusion short tube suction mechanism 302 being driven by the first lifting cylinder 3033 to move up and down as a whole, the first lifting guide shaft 3034 greatly improves the stability of the movement.

[0061] The first translation drive mechanism 304 includes a first translation cylinder 3041 and a first translation cylinder seat plate 3042. The first translation cylinder seat plate 3042 is arranged on the material taking mounting plate 301. The first translation cylinder 3041 is installed on the first translation cylinder seat plate 3042. The extension direction of the first translation cylinder 3041 is consistent with the direction of the second slide rail 3012. The end of the piston rod of the first translation cylinder 3041 is connected to the first slide plate 3031. The first translation cylinder 3041 extends to push the second lifting drive mechanism 303 and the infusion short tube suction mechanism 302 to move outward synchronously.

[0062] The infusion short tube suction mechanism 302 includes a nozzle bearing seat plate 3021, a third linear bearing 3022, a nozzle guide shaft 3023, a nozzle fixing plate 3024 and a nozzle tube 3025. The upper end surface of the nozzle bearing seat plate 3021 is connected to the first lifting cylinder 3033 and the first lifting guide shaft 3034. A plurality of groups of third linear bearings 3022 are arranged on the nozzle bearing seat plate 3021 at intervals. The nozzle guide shaft 3023 is installed in the third linear bearing 3022. A clamping plate 3026 is arranged on the upper end of the nozzle guide shaft 3023. A buffer spring is arranged between the clamping plate 3026 and the third linear bearing 3022. A suction nozzle fixing plate 3024 is horizontally arranged at the lower end, and a suction nozzle tube 3025 for sucking the infusion short tube from the silo is arranged on the suction nozzle fixing plate 3024. Under the action of gravity, the suction nozzle guide shaft 3023 below the clamping plate 3026 extends downward from the third linear bearing 3022. When the first lifting cylinder 3033 is extended, the suction nozzle tube 3025 moves down to contact the infusion short tube. At this time, the buffer spring plays a buffering role to prevent the suction nozzle tube 3025 from severely pressing the infusion short tube. The suction nozzle tube 3025 absorbs one end of the infusion short tube under the action of the external suction device, and drives the infusion short tube to move up and out of the inner bin 202 under the action of the first lifting cylinder 3033.

[0063] Each group of third linear bearings 3022 includes two third linear bearings 3022, and the lower ends of the nozzle guide shafts 3023 in the two third linear bearings 3022 in each group are connected to the same nozzle fixing plate 3024; the upper part of the nozzle tube 3025 is connected to the air duct of the external air suction equipment; the lower end of the material picking mounting plate 301 is provided with a pipeline distributor 3013 for passing the air duct of the external air suction equipment.

[0064] In this embodiment, Figure 8 and Fig. 9As shown, the infusion set short tube alignment device 4 includes a supporting base plate 401, a support shaft 402 arranged on the upper end surface of the supporting base plate 401, a connecting block 403 arranged on the upper end of the support shaft 402, an alignment seat plate 404 arranged on the upper end of the connecting block 403, a catheter support plate 405 arranged on the upper end surface of the alignment seat plate 404, and an alignment mechanism arranged on the lower end surface of the alignment seat plate 405, the catheter support plates 405 are arranged in at least two groups at intervals, and a plurality of catheter placement grooves 406 are arranged at intervals on the upper end of the catheter support plates 405; the alignment mechanism includes an alignment guide shaft 407, a third linear bearing 408, an alignment cylinder 409, a cylinder fixing plate 410, a connecting plate 411 and a catheter top alignment plate 412, the arrangement direction of the alignment guide shaft 407 is perpendicular to the arrangement direction of the catheter support plate 405, the alignment guide shaft 407 is installed on the connecting block 403, and the alignment guide shaft 40 Both ends of 7 are provided with catheter top plates 412, and a third linear bearing 408 is installed on the catheter top plate 412. The alignment guide shaft 407 is inserted into the third linear bearing 408. The lower end surface of the alignment seat plate 404 is provided with two cylinder fixing plates 410, and the lower end of the catheter top plate 412 is provided with a connecting plate 411 corresponding to the position of the cylinder fixing plate 410 adjacent thereto. The cylinder barrel of the alignment cylinder 409 is fixed on the cylinder fixing plate 410, and the piston rod of the alignment cylinder 409 is fixed on the connecting plate 411 adjacent thereto. When in use, the short tube of the infusion set is moved to the top of the alignment seat plate 404, and support is formed by two sets of catheter support plates 405 arranged at intervals. The alignment cylinder 409 is started, and the two catheter top plates 412 move relative to each other, respectively abutting against the two ends of the short tube of the infusion set, so that the short tube of the infusion set is aligned. The whole structure is simple in design and the alignment efficiency is high.

[0065] In this embodiment, each group of catheter support plates 405 is composed of multiple parallel plates, each of which is provided with a catheter placement groove 406, and the positions of the catheter placement grooves 406 between the plates correspond to each other; at least one catheter top plate 412 is provided with a catheter passing groove 413 at intervals on the upper end, and the position of the catheter passing groove 413 corresponds one-to-one to the position of the catheter placement groove 406, and the bottom of the catheter passing groove 413 is located above the top of the catheter placement groove 406, and the short tube of the infusion set moves along the catheter passing groove 413 to directly above the catheter support plate 405, so that the short tube of the infusion set can accurately fall into the catheter placement groove 406.

[0066] In this embodiment, Figure 14-16As shown, the short tube positioning device 6 of the infusion set includes a short tube conveying mechanism 601 and two positioning mechanisms arranged at a front and rear interval on one side of the short tube conveying mechanism 601, the positioning mechanism includes a lower positioning component 602 and an upper positioning component 603, the short tube of the infusion set is placed on the short tube conveying mechanism 601 at intervals, one end of the short tube of the infusion set extends out of the short tube conveying mechanism 601 and extends between the lower positioning component 602 and the upper positioning component 603, the short tube of the infusion set is supported by the short tube conveying mechanism 601, and the first positioning mechanism is used to support the short tube of the infusion set. The lower alignment component 602 and the upper alignment component 603 of the first alignment mechanism are used to align the head of the short tube of the infusion set, so as to facilitate the gluing device to apply glue to the head of the short tube of the infusion set. After the gluing is completed, the lower alignment component 602 and the upper alignment component 603 of the first alignment mechanism are separated, and the short tube conveying mechanism 601 conveys the short tube of the infusion set to the second alignment mechanism, and the lower alignment component 602 and the upper alignment component 603 of the second alignment mechanism are used to align the head of the short tube of the infusion set that has been glued again, so as to facilitate the subsequent assembly operation with the three-way pipe.

[0067] The lower alignment component 602 includes a lower alignment cylinder mounting plate 6021, a lower alignment cylinder 6022, a lower alignment support plate 6023, a lower linear bearing 6024, a lower optical axis 6025, a lower alignment fork plate mounting plate 6026 and a lower alignment fork plate 6027. The lower alignment cylinder mounting plate 6021 is mounted on the frame 1, and the lower alignment cylinder 6022 is mounted on the upper end surface of the lower alignment cylinder mounting plate 6021. The upper end of the cylinder barrel of the lower alignment cylinder 6022 is fixedly connected to the horizontally arranged lower alignment support plate 6023. A lower linear bearing 6024 is installed on the plate 6023, and the lower linear bearing 6024 is located on both sides of the lower alignment cylinder 6022. A lower optical axis 6025 is inserted into the lower linear bearing 6024. The upper end of the lower optical axis 6025 and the upper end of the piston rod of the lower alignment cylinder 6022 are fixedly connected to a horizontally arranged lower alignment fork plate mounting plate 6026. A lower alignment fork plate 6027 is installed on the upper end surface of the lower alignment fork plate mounting plate 6026. A plurality of "V"-shaped limiting openings 6028 are spaced apart at the upper end of the lower alignment fork plate 6027.

[0068] The upper alignment component 603 includes an upper alignment cylinder mounting plate 6031, an upper alignment cylinder 6032, an upper alignment fork plate mounting plate 6033 and an upper alignment fork plate 6034. The upper alignment cylinder mounting plate 6031 is mounted on the frame 1. The upper alignment cylinder 6032 is mounted on the lower end surface of the upper alignment cylinder mounting plate 6031. The lower end of the piston rod of the upper alignment cylinder 6032 is connected to the horizontally arranged upper alignment fork plate mounting plate 6033. The upper alignment fork plate 6034 is mounted on the lower end surface of the upper alignment fork plate mounting plate 6033. The lower end of the upper alignment fork plate 6034 is spaced apart with inverted "V"-shaped limiting openings 6035 corresponding to the "V"-shaped limiting openings 6028.

[0069] When the alignment mechanism is in use, the lower alignment component 602 and the upper alignment component 603 are started simultaneously, the lower alignment cylinder 6022 extends to push the lower alignment fork plate 6027 upward, and each short infusion tube is supported by a "V"-shaped limiting opening 6028, the upper alignment cylinder 6032 extends to push the upper alignment fork plate 6034 downward, the inverted "V"-shaped limiting opening 6035 of the upper alignment fork plate 6034 and the "V"-shaped limiting opening 6028 of the lower alignment fork plate 6027 cooperate to form a limiting opening, and each short infusion tube is limited in a limiting opening, which is convenient for gluing operations or assembly with a three-way pipe.

[0070] In this embodiment, the lower positive fork plate 6027 is composed of N plates arranged at intervals, and the upper positive fork plate 6034 is composed of N±1 plates arranged at intervals. The plates of the lower positive fork plate 6027 and the upper positive fork plate 6034 are staggered to enhance the limiting stability and supporting stability of the short tube of the infusion device; the "V"-shaped limiting opening 6028 and the inverted "V"-shaped limiting opening 6035 are both smoothly arranged to effectively prevent scratches on the outer wall of the short infusion tube; the two ends of the conveyor belt 6011 of the short tube conveying mechanism 601 in the width direction are correspondingly arranged A short tube support plate 6012 is provided, and a "V"-shaped groove 6013 is provided at the upper end of the short tube support plate 6012. The short tube of the infusion set is supported in the corresponding two "V"-shaped grooves 6013, thereby enhancing the stability of the support for the main body of the infusion short tube; a short tube gluing device is provided on the side of one of the alignment mechanisms away from the short tube conveying mechanism 601, and a pre-assembly pretreatment system for the three-way tube of the infusion set is provided on the side of the other alignment mechanism away from the short tube conveying mechanism 601, thereby enhancing the continuity between the short tube alignment device of the infusion set and the gluing process and the assembly process.

[0071] In this embodiment, Figure 10-13As shown, the infusion short tube transport device 5 includes a transport mounting plate 503, a second translation drive mechanism 504, a third lifting drive mechanism 505, a first manipulator assembly 501 and a second manipulator assembly 502, wherein the second translation drive mechanism 501 is mounted on the frame 1, the transport mounting plate 503 is connected to the second translation drive mechanism 504, a first manipulator assembly 501 for clamping the infusion short tube is mounted at the lower end of the transport mounting plate 503, a third lifting drive mechanism 505 is mounted on the transport mounting plate 503, a second manipulator assembly 502 for clamping the infusion short tube is mounted below the third lifting drive mechanism 505, the first manipulator assembly 501 is located in front of the second manipulator assembly 502, and the first manipulator assembly 501 Grab the Mth batch of infusion tubes, and transfer the Mth batch of infusion tubes from the infusion tube material taking device 3 to the infusion tube aligning device 4; the second manipulator assembly 502 grabs the M-1th batch of infusion tubes, assists in aligning the M-1th batch of infusion tubes on the infusion tube aligning device 4, and then transfers them to the infusion tube straightening device 6; when the first manipulator assembly 501 just moves to the infusion tube material taking device 3, the second manipulator assembly 502 is just located above the infusion tube straightening device 4 and assists in the alignment; when the first manipulator assembly 501 grabs the Mth batch of infusion tubes and moves them to the infusion tube aligning device 4, the second manipulator assembly 502 just moves the M-1th batch of infusion tubes to the infusion tube straightening device 6;

[0072] The second translation driving mechanism 504 includes a third slide rail 5041, a second slider 5042, a second translation cylinder 5043 and a second translation cylinder seat plate 5044. The third slide rail 5041 is installed on the frame 1. The second slider 5042 is slidably set on the third slide rail 5041. The second slider 5042 is fixedly connected to the transfer mounting plate 503. One side of the transfer mounting plate 503 is connected to the end of the piston rod of the second translation cylinder 5043. The cylinder barrel of the second translation cylinder 5043 is installed on the second translation cylinder seat plate 5044. The second translation cylinder seat plate is installed 5044 is on the frame 1, the extension and retraction direction of the second translation cylinder 5043 is consistent with the setting direction of the third slide rail 5041. When the second translation cylinder 5043 is extended and retracted, it drives the transfer mounting plate 503 to move along the third slide rail 5041, and synchronously drives the first manipulator assembly 501 and the second manipulator assembly 502 to move. The movement trajectory of the first manipulator assembly 501 is to go back and forth between the infusion set short tube material taking device 3 and the infusion set short tube aligning device 4, and the movement trajectory of the second manipulator assembly 502 is to go back and forth between the infusion set short tube aligning device 4 and the infusion set short tube correcting device 6.

[0073] The first manipulator assembly 501 includes a first air gripper mounting plate 5011, a first parallel air gripper 5012, a first clamping jaw mounting plate 5013, a second clamping jaw mounting plate 5014, a first clamping jaw 5015, a second clamping jaw 5016, a fourth slide rail 5017 and a third slide block 5018. The upper end of the first air gripper mounting plate 5011 is fixed to the lower end surface of the translation mounting plate 503. The first parallel air gripper 5012 is mounted on the first air gripper mounting plate 5011. The two jaw plates of the first parallel air gripper 5012 face downward. The first clamping jaw mounting plate 5013 is connected to one of the jaw plates of the first parallel air gripper 5012, and the second clamping jaw mounting plate 5014 is connected to the other jaw plate. The first clamping jaw 5015 is mounted on the lower end of the first clamping jaw mounting plate 5013, and the second clamping jaw mounting plate 5014 is mounted on the lower end of the second clamping jaw mounting plate 5014. A second clamping jaw 5016 is provided, and the first clamping jaw 5015 and the second clamping jaw 5016 cooperate to clamp the short tube of the infusion set, a fourth slide rail 5017 is provided on the first clamping jaw mounting plate 5013, and a third slider 5018 corresponding to the fourth slide rail 5017 is provided on the second clamping jaw mounting plate 5014. After the first manipulator assembly 501 clamps the short tube of the infusion set from the short tube material taking device 3 of the infusion set, the second translation cylinder 5043 is actuated, and the first manipulator assembly 501 moves toward the short tube aligning device 4 of the infusion set. When the first parallel air claw 5012 of the first manipulator assembly 501 is opened, the first clamping jaw mounting plate 5013 and the second clamping jaw mounting plate 5014 are misaligned, and the first clamping jaw 5015 and the second clamping jaw 5016 are opened accordingly, and the short tube of the infusion set is placed on the catheter support groove 406 of the short tube aligning device 4 of the infusion set;

[0074] The third lifting drive mechanism 505 includes a second lifting cylinder 5051, a fourth linear bearing 5052 and a second lifting guide shaft 5053. The second lifting cylinder 5051 is longitudinally mounted on the transport mounting plate 503. Fourth linear bearings 5052 are arranged on the transport mounting plate 503 on both sides of the second lifting cylinder 5051. The second lifting guide shaft 5053 is installed in the fourth linear bearing 5052. The lower ends of the second lifting cylinder 5051 and the second lifting guide shaft 5053 are both connected to the second manipulator assembly 502. The extension and retraction of the lifting cylinder 5051 drives the second manipulator assembly 502 to move up and down. When the second manipulator assembly 502 moves downward above the infusion set short tube aligning device 4, it can assist the infusion set short tube aligning device 4 to limit and align the infusion set short tube. After the infusion set short tube is aligned, the second manipulator assembly 502 grabs the infusion set short tube, the second lifting cylinder 5051 contracts, the second manipulator assembly 502 grabs the infusion set short tube and moves upward, and the second translation cylinder 5043 extends to drive the second manipulator assembly 502 to move toward the infusion set short tube positioning device 6;

[0075] The second manipulator assembly 502 includes a second air gripper mounting plate 5021, a second parallel air gripper 5022, a third gripper mounting plate 5023, a fourth gripper mounting plate 5024, a third gripper 5025, a fourth gripper 5026, a fifth slide rail 5027 and a fourth slide block 5028. The second air gripper mounting plate 5021 is horizontally arranged, and the upper end surface of the second air gripper mounting plate 5021 is connected to the second lifting guide shaft 5053 and the end of the piston rod of the second lifting cylinder 5051. The lower end of the second air gripper mounting plate 5021 is spaced apart with at least two sets of second The parallel air gripper 5022, the claw plate of the second parallel air gripper 5022 faces downward, one of the claw plates of the second parallel air gripper 5022 is connected to the third clamping claw mounting plate 5023, the other claw plate is connected to the fourth clamping claw mounting plate 5024, the lower end of the third clamping claw mounting plate 5023 is installed with a third clamping claw 5025, the lower end of the fourth clamping claw mounting plate 5024 is installed with a fourth clamping claw 5026, the third clamping claw 5025 and the fourth clamping claw 5026 cooperate to clamp the short tube of the infusion set, the third clamping claw mounting plate 5023 is provided with a fifth slide rail 5027, the fourth clamping claw The claw mounting plate 5024 is provided with a fourth sliding block 5028 corresponding to the fifth sliding rail 5027. The opening and closing of the second parallel air claw 5022 drives the misalignment and overlap of the third clamping claw mounting plate 5023 and the fourth clamping claw mounting plate 5024, thereby driving the opening and closing of the third clamping claw 5025 and the fourth clamping claw 5026. When the second translation cylinder 5043 drives the first manipulator assembly 501 to move toward the infusion device short tube picking device 3, the second manipulator assembly 502 moves to above the catheter support plate 405 of the infusion device short tube aligning device 4. The moving cylinder 5043 extends out and the second parallel air claw 5022 opens. At this time, the third jaw 5025 and the fourth jaw 5026 are between the two sides of the infusion set short tube corresponding to their positions, forming a position limit for the infusion set short tube and assisting the alignment operation of the infusion set short tube. After the infusion set short tube is aligned, the second parallel air claw 5022 closes, and the third jaw 5025 and the fourth jaw 5026 close to clamp the infusion set short tube, the second lifting cylinder 5051 contracts, and the second translation cylinder 5043 starts to move the second manipulator assembly 502 to the infusion set short tube positioning device 6.

[0076] In the present embodiment, the first clamp mounting plate 5013, the second clamp mounting plate 5014, the third clamp mounting plate 5023 and the fourth clamp mounting plate 5024 are arranged in parallel, the first clamp 5025 and the second clamp 5016 are both in a "7" shape structure, the "7" shaped longitudinal plates of the first clamp 5015 and the second clamp 5016 play a major clamping role, and the third clamp 5025 and the fourth clamp 5026 are in an inverted "U" or "F" shape structure, which improves the limiting effect of the short tube of the infusion set during the auxiliary alignment process and improves the stability during the clamping of the short tube of the infusion set.

[0077] 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 pretreatment system for an infusion set short tube before assembly, characterized in that: The invention comprises a frame and an automatic feeding bin for infusion set short tubes arranged on the frame, an infusion set short tube taking device, an infusion set short tube aligning device, an infusion set short tube moving device and an infusion set short tube correcting device, wherein: The infusion set short tube automatic feeding bin, the infusion set short tube aligning device and the infusion set short tube correcting device are sequentially arranged on the frame along the first direction, the infusion set short tube taking device is arranged above the infusion set short tube automatic feeding bin, the infusion set short tube moving device is arranged above the infusion set short tube aligning device and the infusion set short tube correcting device, and the infusion set short tube moving device moves between the infusion set short tube taking device and the infusion set short tube correcting device; The infusion set short tube transfer device comprises a first manipulator assembly and a second manipulator assembly, wherein the first manipulator assembly is used to clamp the Mth batch of infusion set short tubes taken out from the infusion set short tube automatic feeding bin by the infusion set short tube taking device, and transfer the Mth batch of infusion set short tubes to the infusion set short tube aligning device, and the second manipulator assembly is used to assist the infusion set short tube aligning device to align the M-1th batch of infusion set short tubes, and transfer the aligned M-1th batch of infusion set short tubes to the infusion set short tube correcting device; The short tube material taking device of the infusion device comprises a material taking mounting plate, a short tube suction mechanism for sucking the short tube, a second lifting drive mechanism for driving the short tube suction mechanism to move up and down, and a first translation drive mechanism for driving the short tube suction mechanism to move horizontally, the short tube suction mechanism is located below the material taking mounting plate, the second lifting drive mechanism is arranged on the material taking mounting plate and connected to the short tube suction mechanism, and the first translation drive mechanism is arranged on the material taking mounting plate and connected to the short tube suction mechanism; The short tube alignment device of the infusion set includes a supporting base plate, a support shaft arranged on the upper end surface of the supporting base plate, a connecting block arranged on the upper end of the support shaft, an alignment seat plate arranged on the upper end of the connecting block, a catheter support plate arranged on the upper end surface of the alignment seat plate, and an alignment mechanism arranged on the lower end surface of the alignment seat plate. The catheter support plates are arranged in at least two groups at intervals, and a plurality of catheter placement grooves are arranged at intervals on the upper end of the catheter support plates; the alignment mechanism includes an alignment guide shaft, a third linear bearing, an alignment cylinder, a cylinder fixing plate, a connecting plate and a catheter top alignment plate. The setting direction of the alignment guide shaft is perpendicular to the setting direction of the catheter support plate. The alignment guide shaft is installed on the connecting block. Both ends of the alignment guide shaft are provided with catheter top alignment plates. The third linear bearing is installed on the catheter top alignment plate. The alignment guide shaft is inserted into the third linear bearing. The lower end surface of the alignment seat plate is provided with two cylinder fixing plates. The lower end of the catheter top alignment plate is provided with a connecting plate corresponding to the position of the cylinder fixing plate adjacent to it. The cylinder barrel of the alignment cylinder is fixed on the cylinder fixing plate, and the piston rod of the alignment cylinder is fixed on the connecting plate adjacent to it.

2. The pretreatment system before assembly of the infusion set short tube according to claim 1, characterized in that: The automatic loading bin for the infusion device short tube includes an outer bin, an inner bin arranged inside the outer bin, an outer bin mounting seat for supporting the outer bin, and a first lifting drive mechanism for driving the inner bin to move up and down in the outer bin, the outer bin is a rectangular structure with an open upper end and a lower end, the upper ends of the left and right plates of the outer bin are both provided with a first opening, one side of the first opening of the left plate of the outer bin and one side of the first opening of the right plate of the outer bin are correspondingly provided with a photoelectric sensor, and the lower end of the outer bin is installed on the outer bin mounting seat; the inner bin is a rectangular structure with an open upper end and a rear end, the left and right plates of the inner bin are both provided with a long strip opening corresponding to the first opening position of the outer bin, the bottom of the inner bin is connected to the first lifting drive mechanism, and the first lifting drive mechanism is installed on the outer bin mounting seat; The outer bin mounting seat includes a bin seat plate and a rib plate, the bin seat plate includes a horizontal seat plate and a vertical seat plate arranged at the lower end of the horizontal seat plate, the rib plate is arranged between the horizontal seat plate and the vertical seat plate, and the outer bin is mounted on the horizontal seat plate; the outer bin mounting seat also includes a fixed support plate, a first slide rail, a first slider, a micro-cylinder and a micro-cylinder seat, the fixed support plate is installed on the frame, the end surface of the fixed support plate facing the vertical seat plate is provided with a first slide rail, the vertical seat plate is provided with a first slider matching with the first slide rail, the fixed support plate is provided with a micro-cylinder seat, the micro-cylinder is installed on the micro-cylinder seat, the telescopic direction of the micro-cylinder is consistent with the direction of the first slide rail, and the end of the piston rod of the micro-cylinder is connected to the rib plate; The first lifting drive mechanism includes a lifting drive motor, a linear gear reducer rack, a first linear bearing and a first optical axis, the lifting drive motor is installed on the lower end surface of the horizontal seat plate, the lifting drive motor is connected to the linear gear reducer rack, drives the linear gear reducer rack to move up and down, the upper end of the linear gear reducer rack is fixedly connected to the bottom plate of the inner warehouse, a plurality of first linear bearings are installed on the horizontal seat plate, the upper end of the first optical axis is fixed on the bottom plate of the inner warehouse after passing through the first linear bearing; the first lifting drive mechanism also includes a lifting motor photoelectric support plate, a proximity switch and an inner warehouse height detection block, the lower end surface of the horizontal seat plate is vertically fixed with a lifting motor photoelectric support plate, the installation position of the lifting motor photoelectric support plate corresponds to the linear gear reducer rack, the lifting motor photoelectric support plate is spaced apart from the upper and lower parts with detection holes, the detection holes are installed with proximity switches, and the lower end of the linear gear reducer rack is installed with an inner warehouse height detection block; The upper ends of the left and right plates of the inner bin are provided with limiting outer edges, and when the inner bin height detection block is aligned with the proximity switch located below, the limiting outer edges rest on the upper edge of the outer bin; the size of the inner bin matches the inner cavity size of the outer bin.

3. The pretreatment system before assembly of the infusion set short tube according to claim 1, characterized in that: A second opening is provided on the material taking mounting plate, and parallel second slide rails are installed on both sides of the second opening; the second lifting drive mechanism includes a first slide plate, a first slide seat, a first lifting cylinder, a first lifting guide shaft and a second linear bearing, a first slide seat is provided on the lower end surface of the first slide plate, and the first slide seat is installed on the second slide rail corresponding to its position, a first lifting cylinder is installed in the middle part of the first slide plate, and the end of the piston rod of the first lifting cylinder passes downward through the second opening and is connected to the infusion device suction mechanism, a plurality of second linear bearings are provided on the first slide plate, and the second linear bearings are distributed around the first lifting cylinder, and the first lifting guide shaft is installed in the second linear bearing, and the lower end of the first lifting guide shaft passes downward through the second opening and is connected to the infusion device suction mechanism; The first translation drive mechanism includes a first translation cylinder and a first translation cylinder seat plate, the first translation cylinder seat plate is arranged on the material taking mounting plate, the first translation cylinder is installed on the first translation cylinder seat plate, the extension direction of the first translation cylinder is consistent with the direction of the second slide rail, and the end of the piston rod of the first translation cylinder is connected to the first slide plate; The short infusion tube suction mechanism comprises a nozzle bearing seat plate, a third linear bearing, a nozzle guide shaft, a nozzle fixing plate and a nozzle tube, the upper end surface of the nozzle bearing seat plate is connected to the first lifting cylinder and the first lifting guide shaft, a plurality of groups of third linear bearings are arranged at intervals on the nozzle bearing seat plate, a nozzle guide shaft is installed in the third linear bearing, a clamping plate is arranged at the upper end of the nozzle guide shaft, a buffer spring is arranged between the clamping plate and the third linear bearing, a nozzle fixing plate is horizontally arranged at the lower end of the nozzle guide shaft, and a nozzle tube for sucking the short infusion tube from the silo is arranged on the nozzle fixing plate; Each group of third linear bearings includes two third linear bearings, and the lower ends of the nozzle guide shafts in the two third linear bearings in each group are connected to the same nozzle fixing plate; the upper part of the nozzle pipe is connected to the air duct of the external air suction equipment; the lower end of the material picking mounting plate is provided with a pipeline distributor for passing the air duct of the external air suction equipment.

4. The pretreatment system before assembly of the infusion set short tube according to claim 1, characterized in that: Each set of catheter support plates is composed of multiple parallel plates, each of which is provided with a catheter placement groove, and the positions of the catheter placement grooves between the plates correspond to each other; at least one catheter top plate is provided with a catheter passing groove at intervals on the upper end, and the position of the catheter passing groove corresponds to the position of the catheter placement groove one by one, and the bottom of the catheter passing groove is located above the top of the catheter placement groove.

5. The pretreatment system before assembly of the infusion set short tube according to claim 1, characterized in that: The short tube positioning device of the infusion device comprises a short tube conveying mechanism and two positioning mechanisms arranged at intervals on one side of the short tube conveying mechanism, the positioning mechanism comprises a lower positioning component and an upper positioning component, the short tube of the infusion device is placed on the short tube conveying mechanism at intervals, one end of the short tube of the infusion device extends out of the short tube conveying mechanism and extends between the lower positioning component and the upper positioning component; The lower alignment component comprises a lower alignment cylinder mounting plate, a lower alignment cylinder, a lower alignment support plate, a lower linear bearing, a lower optical axis, a lower alignment fork plate mounting plate and a lower alignment fork plate, the lower alignment cylinder mounting plate is mounted on the frame, the lower alignment cylinder is mounted on the upper end surface of the lower alignment cylinder mounting plate, the upper end of the cylinder barrel of the lower alignment cylinder is fixedly connected to the horizontally arranged lower alignment support plate, the lower linear bearing is mounted on the lower alignment support plate, the lower linear bearing is located on both sides of the lower alignment cylinder, the lower optical axis is inserted into the lower linear bearing, the upper end of the lower optical axis and the upper end of the piston rod of the lower alignment cylinder are both fixedly connected to the horizontally arranged lower alignment fork plate mounting plate, the lower alignment fork plate is mounted on the upper end surface of the lower alignment fork plate mounting plate, and a plurality of "V"-shaped limiting openings are spaced apart at the upper end of the lower alignment fork plate; The upper alignment component includes an upper alignment cylinder mounting plate, an upper alignment cylinder, an upper alignment fork plate mounting plate and an upper alignment fork plate. The upper alignment cylinder mounting plate is mounted on the frame. The upper alignment cylinder is mounted on the lower end surface of the upper alignment cylinder mounting plate. The lower end of the piston rod of the upper alignment cylinder is connected to the horizontally arranged upper alignment fork plate mounting plate. The upper alignment fork plate is mounted on the lower end surface of the upper alignment fork plate mounting plate. The lower end of the upper alignment fork plate is provided with inverted "V"-shaped limit openings corresponding to the "V"-shaped limit openings.

6. The pretreatment system before assembly of the infusion set short tube according to claim 5, characterized in that: The lower alignment fork plate is composed of N plate bodies arranged at intervals, and the upper alignment fork plate is composed of N±1 plate bodies arranged at intervals, and the plate bodies of the lower alignment fork plate and the upper alignment fork plate are arranged alternately; the "V"-shaped limit opening and the inverted "V"-shaped limit opening are both smoothly arranged; short tube support plates are correspondingly arranged at both ends of the conveyor belt width direction of the short tube conveying mechanism, and the upper end of the short tube support plate is provided with a "V"-shaped groove, and the infusion set short tube is supported in the corresponding two "V"-shaped grooves; a short tube gluing device is arranged on the side of one of the alignment mechanisms away from the short tube conveying mechanism, and a pre-assembly system for the three-way tube of the infusion set is arranged on the side of the other alignment mechanism away from the short tube conveying mechanism.

7. The pretreatment system before assembly of the infusion set short tube according to claim 1, characterized in that: The infusion set short tube transport device comprises a transport mounting plate, a second translation drive mechanism, a third lifting drive mechanism, a first manipulator assembly and a second manipulator assembly, wherein the second translation drive mechanism is mounted on a frame, the transport mounting plate is connected to the second translation drive mechanism, a first manipulator assembly for clamping the infusion set short tube is mounted at the lower end of the transport mounting plate, a third lifting drive mechanism is mounted on the transport mounting plate, a second manipulator assembly for clamping the infusion set short tube is mounted below the third lifting drive mechanism, and the first manipulator assembly is located in front of the second manipulator assembly; The second translation driving mechanism comprises a third slide rail, a second slider, a second translation cylinder and a second translation cylinder seat plate, the third slide rail is mounted on the frame, the second slider is slidably arranged on the third slide rail, the second slider is fixedly connected to the transfer mounting plate, one side of the transfer mounting plate is connected to the end of the piston rod of the second translation cylinder, the cylinder barrel of the second translation cylinder is mounted on the second translation cylinder seat plate, the second translation cylinder seat plate is mounted on the frame, and the extension direction of the second translation cylinder is consistent with the setting direction of the third slide rail; The first manipulator assembly comprises a first air gripper mounting plate, a first parallel air gripper, a first clamping jaw mounting plate, a second clamping jaw mounting plate, a first clamping jaw, a second clamping jaw, a fourth slide rail and a third slider, the upper end of the first air gripper mounting plate is fixed to the lower end surface of the translation mounting plate, the first parallel air gripper is mounted on the first air gripper mounting plate, the two jaw plates of the first parallel air gripper face downward, one of the jaw plates of the first parallel air gripper is connected to the first clamping jaw mounting plate, the other jaw plate is connected to the second clamping jaw mounting plate, the lower end of the first clamping jaw mounting plate is mounted with a first clamping jaw, the lower end of the second clamping jaw mounting plate is mounted with a second clamping jaw, the first clamping jaw and the second clamping jaw cooperate to clamp the short tube of the infusion device, the first clamping jaw mounting plate is provided with a fourth slide rail, and the second clamping jaw mounting plate is provided with a third slider corresponding to the fourth slide rail; The third lifting drive mechanism includes a second lifting cylinder, a fourth linear bearing and a second lifting guide shaft, the second lifting cylinder is longitudinally mounted on the transport mounting plate, fourth linear bearings are arranged on the transport mounting plate body on both sides of the second lifting cylinder, the second lifting guide shaft is installed in the fourth linear bearing, and the lower end of the second lifting cylinder and the lower end of the second lifting guide shaft are both connected to the second manipulator assembly; The second manipulator assembly includes a second air claw mounting plate, a second parallel air claw, a third clamp mounting plate, a fourth clamp mounting plate, a third clamp, a fourth clamp, a fifth slide rail and a fourth slider. The second air claw mounting plate is horizontally arranged, and the upper end surface of the second air claw mounting plate is connected to the second lifting guide shaft and the end of the piston rod of the second lifting cylinder. At least two groups of second parallel air claws are arranged at intervals at the lower end of the second air claw mounting plate, and the claw plates of the second parallel air claws face downward. The third clamp mounting plate is connected to one of the claw plates of the second parallel air claws, and the fourth clamp mounting plate is connected to the other claw plate. The third clamp is installed at the lower end of the third clamp mounting plate, and the fourth clamp is installed at the lower end of the fourth clamp mounting plate. The third clamp and the fourth clamp cooperate to clamp the short tube of the infusion pump. The fifth slide rail is arranged on the third clamp mounting plate, and the fourth slider corresponding to the fifth slide rail is arranged on the fourth clamp mounting plate.

8. The pretreatment system before assembly of the infusion set short tube according to claim 7, characterized in that: The first clamping jaw mounting plate, the second clamping jaw mounting plate, the third clamping jaw mounting plate and the fourth clamping jaw mounting plate are arranged in parallel, the first clamping jaw and the second clamping jaw are both in a "7" shape structure, and the third clamping jaw and the fourth clamping jaw are in an inverted "U" shape or "F" shape structure.

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