Automatic equipment for liquid adding and assembling of arterial blood gas needle

Abstract

The invention discloses automatic equipment for liquid adding and assembling of an arterial blood gas needle, which comprises an arterial blood gas needle assembly carrying line, a sheath feeding device, a liquid spraying device, a hot air blowing device, a push rod and sheath assembling device, a push rod pressing device, a blood taking needle installing device, a qualified product discharging device and an unqualified product discharging device are sequentially arranged along the arterial blood gas needle assembly carrying line. Automatic production of the arterial blood gas needle is achieved, automatic liquid medicine adding and automatic liquid medicine drying are achieved, automatic assembly of a push rod, a blood taking needle and a sheath is achieved, the production efficiency and quality of the arterial blood gas needle are improved, and the quality consistency of products is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of anesthesia connector assembly and production technology, and in particular to an automated device for adding fluid and assembling arterial blood gas needles. Background Technology

[0002] Our company's arterial blood gas needles consist of a sheath (sample reservoir), plunger, and needle accessories. Currently, in industrial production of arterial blood gas needles, most production processes are completed manually by workers, resulting in low automation, high dependence on workers, and a significant impact of human factors on product quality.

[0003] Therefore, there is an urgent need for an automated device for automatically adding medication and assembling product components for arterial blood gas injections, which can realize automated production of arterial blood gas injections, allowing machines to replace manual labor and significantly improving production efficiency and product quality. Summary of the Invention

[0004] In order to solve the problems in the prior art, the present invention provides an automated device for adding fluid and assembling arterial blood gas needles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automated device for adding and assembling arterial blood gas needles includes an arterial blood gas needle assembly transport line, along which are sequentially arranged a sheath feeding device, a liquid spraying device, a hot air blowing device, a push rod and sheath assembly device, a push rod pressing device, a blood collection needle loading device, a qualified product unloading device, and a non-qualified product unloading device.

[0006] Furthermore, multiple fixtures are distributed on the arterial blood gas needle assembly carrier line, and the fixtures move with the arterial blood gas needle assembly carrier line; one or more sheath positions are arranged on the fixture, and the sheath positions have side openings and top and bottom openings. After the sheath is installed into the sheath position of the fixture, the sheath is placed vertically.

[0007] Furthermore, the sheath feeding device includes a sheath picking and feeding mechanism, which is used to pick up the sheath and place it into the sheath position of the fixture.

[0008] Furthermore, the spraying device includes a liquid A spraying station and a liquid B spraying station; The spray station for liquid A is equipped with a liquid A spray valve, which is installed on the liquid A spray moving mechanism. The liquid A spray valve is aligned with the sheath opening and then liquid A is sprayed. The spray station for liquid B is equipped with a liquid B filling nozzle, which is mounted on a liquid B spray moving mechanism. The liquid B spray moving mechanism aligns the liquid B filling nozzle with the sheath opening and then sprays liquid B.

[0009] Furthermore, one or more sets of the hot air blowing device are arranged along the arterial blood gas needle assembly transport line; Each hot air blowing device includes a lateral positioning mechanism, a lower blocking mechanism, and a hot air mechanism; The lateral positioning mechanism includes a lateral positioning block and a lateral positioning cylinder. The lateral positioning cylinder drives the lateral positioning block to move, thereby fixing the sheath laterally. The lower blocking mechanism includes a lower blocking plate and a blocking plate moving cylinder. The blocking plate moving cylinder drives the lower blocking plate to move upward, thereby sealing the lower end of the sheath. The hot air mechanism includes an array of hot air pipes, which are mounted on a hot air pipe moving mechanism. The hot air pipes are moved into the sheath by the hot air pipe moving mechanism to dry the liquid inside the sheath.

[0010] Furthermore, the push rod and sheath assembly device includes a push rod picking and feeding mechanism and a push rod assembly mechanism. The push rod picking and feeding mechanism is used to pick up the push rod and pass it to the push rod assembly mechanism; the push rod assembly mechanism is used to press the push rod downward into the sheath.

[0011] Furthermore, the push rod assembly mechanism includes a push rod moving stage, which is mounted on the push rod assembly moving mechanism and is driven to move by the push rod assembly moving mechanism. The push rod moving table is equipped with a material picking gripper, which is located above the fixture and is used to receive the push rods transmitted by the push rod picking and feeding mechanism. Above the material picking gripper is a primary positioning block, which is installed on the moving end of the primary positioning cylinder. The primary positioning cylinder drives the primary positioning block to move up and down. The primary positioning cylinder is installed on the push rod moving table.

[0012] Furthermore, the push rod device includes a pressing slide rail arranged vertically and a secondary positioning block slidably arranged on the pressing slide rail. The secondary positioning block is connected to a pressing cylinder, and the pressing cylinder drives the secondary positioning block to move up and down to achieve secondary pressing of the push rod. A limit switch is provided at the end of the lower stroke of the secondary positioning block.

[0013] Furthermore, the blood collection needle device includes a blood collection needle picking and feeding mechanism and a blood collection needle assembly mechanism. The blood collection needle picking and feeding mechanism is used to pick up the blood collection needle and pass it to the blood collection needle assembly mechanism; the blood collection needle assembly mechanism is used to install the blood collection needle upwards to the lower end of the sheath.

[0014] Furthermore, the blood collection needle assembly mechanism includes a blood collection needle moving platform located below the fixture. The blood collection needle moving platform is mounted on the blood collection needle assembly moving mechanism, and the blood collection needle moving platform is moved by the blood collection needle assembly moving mechanism. The blood collection needle moving platform is equipped with a blood collection needle clamp, which is used to receive the blood collection needles transferred from the blood collection needle picking and feeding mechanism. The blood collection needle clamp is connected to the blood collection needle assembly servo motor through the blood collection needle assembly transmission component. The blood collection needle assembly servo motor drives the blood collection needle clamp to rotate, thereby turning the blood collection needle onto the sheath.

[0015] Furthermore, the blood collection needle device also includes a lateral clamping mechanism located on one side of the fixture side opening, and an upper clamping mechanism located on the upper side of the fixture upper opening. The lateral clamping mechanism includes a lateral clamping clamp and a lateral clamping cylinder. The lateral clamping cylinder drives the lateral clamping clamp to move, thereby achieving lateral clamping and fixing of the sheath. The upper clamping mechanism includes an upper clamping clamp and an upper clamping cylinder. The upper clamping cylinder drives the upper clamping clamp to move downward, thereby clamping and fixing the upper side of the sheath.

[0016] Furthermore, the qualified unloading device includes a finished product gripper module, which is installed on the unloading swing mechanism. The unloading swing mechanism enables the finished product gripper module to switch between horizontal and vertical states. A finished product conveyor belt is provided below the finished product gripper module. The material feeding swing mechanism is installed on the material feeding lifting mechanism and moves up and down with the material feeding lifting mechanism; The material unloading lifting mechanism is installed on the material unloading translation mechanism and moves horizontally along with the material unloading translation mechanism.

[0017] Furthermore, the material feeding swing mechanism includes a swing plate, a swing shaft, a moving seat, and a swing drive cylinder; The swing plate is suspended above the finished product conveyor belt, and the finished product gripper module is installed on the swing plate; one end of the swing shaft is coaxially and fixedly connected to the swing plate, and the other end of the swing shaft is installed on the movable seat and rotates with it; the swing shaft is provided with a swing gear, and the swing seat is provided with a rack that moves with it, and the rack meshes with the swing gear. The swing drive cylinder is mounted on the movable base, and the moving end of the swing drive cylinder is connected to the rack; The movable seat is installed on the unloading lifting mechanism.

[0018] Furthermore, the defective material unloading device includes an ejection mechanism located below the fixture and movable up and down, and a blowing mechanism located above the fixture, with a material unloading chute located at a position corresponding to the blowing mechanism.

[0019] Furthermore, the sheath feeding and feeding mechanism, the push rod feeding and feeding mechanism, and the blood collection needle feeding and feeding mechanism have basically the same structure, all including a guiding structure, a distributing structure, and a feeding structure. The feeding structure includes a feed inlet, which is connected to the sheath / push rod / blood collection needle feeding mechanism; The feeding mechanism includes a turntable, which is mounted on a rotary drive unit, and the rotary drive unit is mounted on a vertical moving unit. One or more sets of clamping components are arranged circumferentially on the turntable. Each set of clamping components includes a clamping moving cylinder. The moving end of the clamping moving cylinder is respectively equipped with two parallel sleeve / push rod / blood collection needle clamping modules. The material distribution structure includes a material distribution base with two symmetrical material distribution slots, a left material distribution slot and a right material distribution slot. The material distribution base is mounted on a material distribution moving mechanism, which drives the material distribution base to switch between three positions: a left material distribution position, a feeding position, and a right material distribution position. When the material distribution base is in the left material distribution position, the left material distribution slot is connected to the feed inlet. When the material distribution base is in the right material distribution position, the right material distribution slot is connected to the feed inlet. When the material distribution base is in the feeding position, the left and right material distribution slots correspond to two sheath / push rod / blood collection needle clamping modules.

[0020] The beneficial effects of this invention are: This invention enables automated production of arterial blood gas needles, including automatic addition and drying of the drug solution, as well as automatic assembly of the push rod, blood collection needle, and sheath. This improves the production efficiency and quality of arterial blood gas needles and ensures product consistency.

[0021] The spraying device of the present invention includes a drug solution A spraying station and a drug solution B spraying station, so that silicone oil can be sprayed first and then heparin lithium can be sprayed, thereby completing the automatic addition of drug solution to the arterial blood gas needle.

[0022] This invention divides the hot air blowing device for drying into multiple groups, breaking down the drying time and effectively solving the problem of other stations waiting due to excessively long drying times.

[0023] This invention first assembles the push rod using a push rod and sheath assembly device, and then uses a push rod pressing device for secondary accurate positioning. This not only avoids damage to the liquid medicine layer inside the sheath caused by excessively fast or forceful push rod assembly, but also ensures that the installation depth of the push rod accurately meets the predetermined requirements, thus achieving streamlined, orderly, and efficient operation.

[0024] The blood collection needle mounting device of this invention is driven by a servo motor, which can control the torque so that the blood collection needle automatically stops after being screwed into place, ensuring assembly consistency. Furthermore, during the screwing process, a lateral clamping mechanism achieves lateral clamping and fixation of the sheath, and an upper clamping mechanism achieves upper clamping and fixation of the sheath, thereby ensuring that the sheath does not loosen during the screwing of the blood collection needle.

[0025] In this invention, the qualified feeding device, in conjunction with the feeding swing mechanism, realizes the change of the finished material from a vertical state in the jig to a horizontal state, so that the finished material can be placed regularly on the finished product conveyor belt, which is convenient for subsequent processing. Attached Figure Description

[0026] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a schematic diagram of the arrangement of the arterial blood gas needle assembly carrier line and fixture in this invention; Figure 3 This is a schematic diagram of the sheath feeding device in this invention; Figure 4 This is a schematic diagram of the liquid spraying device in this invention; Figure 5 This is a schematic diagram of the hot air blowing device in this invention; Figure 6 This is a schematic diagram of the push rod and sheath assembly device in this invention; Figure 7 yes Figure 6 Enlarged view of the push rod assembly mechanism; Figure 8 This is a schematic diagram of the push rod device in this invention; Figure 9 This is a schematic diagram of the blood collection needle device in this invention. Figure 10 This is a schematic diagram of the qualified product unloading device in this invention; Figure 11 yes Figure 10 Enlarged view of the feeding and unloading oscillating mechanism; Figure 12 This is an enlarged view of the defective product unloading device in this invention.

[0027] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the invention. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0029] like Figures 1 to 12 As shown, this embodiment provides an automated device for adding and assembling arterial blood gas needles, including an arterial blood gas needle assembly transport line 1. Along the arterial blood gas needle assembly transport line 1, there are sequentially arranged a sheath feeding device 2, a spraying device 3, a hot air blowing device 4, a push rod and sheath assembly device 5, a push rod pressing device 6, a blood collection needle loading device 7, a qualified product unloading device 8, and a non-qualified product unloading device 9.

[0030] The specific structure and working principle of each of the above devices are explained in detail below.

[0031] The arterial blood gas needle assembly transport line 1 includes a chain module 1003 arranged in a ring. The chain module 1003 is mounted on a fixed platform 1002 and driven to rotate by a reducer 1001. Multiple fixtures 10 are evenly distributed on the chain module 1003, and the rotation of the chain module 1003 drives the fixtures 10 to rotate. Each fixture 10 has two sheath positions, each with a side opening and an upper and lower opening. After the sheath is installed into the sheath position of the fixture, the sheath is positioned vertically.

[0032] The sheath feeding device 2 includes a sheath picking and feeding mechanism, which is used to pick up the sheath and put it into the sheath position of the fixture 10.

[0033] The sheath feeding and loading mechanism includes a guiding structure, a distributing structure, and a loading structure. The guiding structure includes a feed inlet 2008, which is connected to the sheath feeding mechanism, which uses a vibratory feeder.

[0034] The feeding mechanism includes a turntable, which is mounted on a rotary drive cylinder 2006, which is mounted on a lifting and telescopic cylinder 2005. Two sets of clamping assemblies are symmetrically distributed on the turntable. Each set of clamping assemblies includes a clamping moving cylinder 2007, and two parallel sheath clamping modules 2004 are respectively installed on the moving end of the clamping moving cylinder 2007.

[0035] The material distribution structure includes a material distribution seat 2003, which has two symmetrical material distribution slots, namely a left material distribution slot 20031 and a right material distribution slot 20032. The material distribution seat is installed on a material distribution moving mechanism, which drives the material distribution seat to switch between three work positions: a left material distribution work position, a feeding work position, and a right material distribution work position. When the material distribution seat is in the left material distribution work position, the left material distribution slot 20031 is connected to the feed port 2008. When the material distribution seat is in the right material distribution work position, the right material distribution slot 20032 is connected to the feed port 2008. When the material distribution seat is in the feeding work position, the left material distribution slot 20031 and the right material distribution slot 20032 correspond to two sheath clamping modules 2004.

[0036] In this embodiment, the material distribution and moving mechanism includes two horizontally stacked first slide cylinders 2001 and second slide cylinders 2002. The material distribution seat is installed on the moving part of the second slide cylinder 2002, and the second slide cylinder 2002 is installed on the moving part of the first slide cylinder 2001. The material distribution seat can be moved and switched between three work positions through the cooperation of the first slide cylinder 2001 and the second slide cylinder 2002.

[0037] During operation, the material distribution seat switches between the left and right material distribution stations, allowing the sheath to enter the left and right material distribution troughs 20031 and 20032. The material distribution seat then moves to the feeding station. Next, the lifting and telescopic cylinder 2005 raises the sheath clamping module 2004. After the sheath clamping module 2004 is raised, the clamping and moving cylinder 2007 drives it to move to the material distribution trough position, clamping the sheath. After clamping the sheath, the clamping and moving cylinder 2007 returns, pulling the sheath material out. Then, the rotary drive cylinder 2006 moves the sheath to the fixture 10. Finally, the lifting and telescopic cylinder 2005 returns, simultaneously placing the sheath into the fixture 10, thus completing the sheath loading process.

[0038] Two clamping modules 2004 in one group extend to clamp the sheath under the action of the actuator. Then, the lifting and telescopic cylinder 2005 drives the turntable to rise, and then the clamping and moving cylinder 2007 returns to its original position, pulling the material out of the sheath picking fixture 2004. Then, the rotating cylinder 2006 moves the sheath to the jig 10. Finally, the lifting and telescopic cylinder 2007 returns to its original position, and at the same time, puts the sheath into the jig, thus realizing the feeding of the sheath.

[0039] The spraying device 3 includes a spraying station for drug solution A and a spraying station for drug solution B. In this embodiment, drug solution A is silicone oil, and drug solution B is lithium heparin, which has the function of preventing blood clotting.

[0040] The liquid A spraying station is equipped with a liquid A spray valve 3005. The liquid A spray valve 3005 is installed on the liquid A spraying moving mechanism. The liquid A spray valve 3005 is moved to one of the protective sleeve positions of the fixture 10 through the liquid A spraying moving mechanism. After aligning with the protective sleeve opening, liquid A is sprayed. Then, it moves to the other protective sleeve position of the fixture 10 to work again.

[0041] In this embodiment, the liquid A spraying movement mechanism includes a liquid A spraying horizontal movement cylinder 3004 and a liquid A spraying vertical movement cylinder 3002. The liquid A spray valve 3005 is installed on the liquid A spraying vertical movement cylinder 3002, and the liquid A spraying vertical movement cylinder 3002 is installed on the liquid A spraying horizontal movement cylinder 3004.

[0042] After the jig reaches the position of the liquid A spray valve 3005, the liquid A spray valve 3005 is driven to move downward by the liquid A spray vertical movement cylinder 3002. After the liquid A spray valve 3005 reaches the position of the sheath opening, liquid A is sprayed. After the liquid A is sprayed, the liquid A spray vertical movement cylinder 3002 returns and is driven by the liquid A spray horizontal movement cylinder 3004 to move to the next sheath position of the jig and repeat the liquid A spraying action.

[0043] The liquid B spraying station is equipped with a liquid B adding nozzle 3006. The liquid B adding nozzle 3006 is mounted on the liquid B spraying moving mechanism. The liquid B spraying moving mechanism moves the liquid B adding nozzle 3006 to one of the sheath positions of the fixture 10, aligns it with the sheath opening, sprays liquid B, and then moves to the other sheath position of the fixture 10 to work again.

[0044] In this embodiment, the liquid B spraying and moving mechanism includes a slide 3008 with a built-in semi-circular track. A slider is provided in the semi-circular track. The slider is driven by the liquid B spraying and moving servo motor 3007 to move in the semi-circular track. The liquid B dispensing nozzle 3006 is connected to the slider through a connecting frame. In this way, the horizontal and vertical movement of the liquid B dispensing nozzle 3006 is realized by the liquid B spraying and moving servo motor 3007.

[0045] In other embodiments, the liquid B spraying and moving mechanism can also adopt a dual-cylinder scheme similar to the liquid A spraying and moving mechanism.

[0046] The hot air blowing device includes a lateral positioning mechanism, a lower blocking mechanism, and a hot air mechanism.

[0047] The lateral positioning mechanism includes a lateral positioning block 4006, which is arranged on a lateral positioning plate 4007 (a buffer spring is also provided between the lateral positioning block 4006 and the lateral positioning plate 4007). The lateral positioning plate 4007 is connected to a lateral positioning cylinder 4005, which drives the lateral positioning block 4006 to move, thereby achieving lateral positioning and fixing of the sheath.

[0048] The lower blocking mechanism includes a lower blocking plate 4002 and a blocking plate moving cylinder 4003. The blocking plate moving cylinder 4003 drives the lower blocking plate 4002 to move upward, thereby blocking the lower end of the sheath. In this way, when the hot air pipe 4008 blows air, the lower blocking plate 4002 can play a blocking role, ensuring that the hot air flows downward and preventing the liquid medicine in the sheath from being blown out directly from the lower end.

[0049] The hot air mechanism includes an array of hot air pipes 4008. The hot air pipes 4008 are mounted on a hot air pipe up-and-down moving electric cylinder 4004. After the hot air pipes 4008 enter the sheath through the hot air pipe up-and-down moving electric cylinder 4004, the heparin lithium drug solution inside the sheath is dried.

[0050] During operation, after the jig 10 reaches the position of the hot air blowing device, the lateral positioning block 4006 is first pressed against the protective sleeve by the lateral positioning cylinder 4005. Then, the lower blocking plate 4002 is blocked by the blocking plate moving cylinder 4003. Finally, the hot air pipe 4008 is moved downward by the hot air pipe moving electric cylinder 4004. After the hot air pipe 4008 enters the protective sleeve, the liquid inside the protective sleeve is dried.

[0051] Since a relatively long hot air blowing time is required to dry the medicine liquid, in this embodiment, the hot air blowing device is set to 10 sets (the 5 sets on the left share a set of blocking plate moving cylinder, side positioning cylinder and hot air pipe up and down moving electric cylinder, and the 5 sets on the right share a set of blocking plate moving cylinder, side positioning cylinder and hot air pipe up and down moving electric cylinder), which breaks down the drying time and effectively solves the problem of waiting at other stations due to the long drying time.

[0052] The push rod and sheath assembly device includes a push rod picking and feeding mechanism 5005 and a push rod assembly mechanism. The push rod picking and feeding mechanism 5005 is used to pick up the push rod and pass it to the push rod assembly mechanism; the push rod assembly mechanism is used to press the push rod downward into the sheath.

[0053] In this embodiment, the structure of the push rod material picking and feeding mechanism 5005 is basically the same as that of the sheath material picking and feeding mechanism. It only needs to be replaced with a feed port, a material distribution groove and a push rod clamping module 5001 that are adapted to the shape of the push rod.

[0054] The push rod assembly mechanism includes a push rod moving stage, which is mounted on the push rod assembly moving mechanism. The push rod assembly moving mechanism drives the push rod moving stage to move horizontally and vertically. In this embodiment, the push rod assembly moving mechanism uses a combination of a fifth horizontal cylinder 5010 and a fifth vertical cylinder 5008.

[0055] The push rod moving table is equipped with a material picking gripper 5006, which is located above the fixture and is used to receive the push rod transmitted by the push rod picking and feeding mechanism. Above the material picking gripper 5006 is a primary positioning block, which is installed on the moving end of the primary positioning cylinder 5007. The primary positioning cylinder 5007 drives the primary positioning block to move up and down. The primary positioning cylinder is installed on the push rod moving table.

[0056] During operation, the push rod clamping module 5001 transports the acquired push rod to the push rod assembly mechanism. The fifth horizontal cylinder 5010 then moves the picking gripper 5006 to the position of the push rod clamping module 5001. The picking gripper 5006 actuates and clamps the push rod. After the push rod clamping module 5001 releases, the fifth horizontal cylinder 5010 returns, aligning the push rod in the picking gripper 5006 with the upper end of the sheath in the jig 10. Under the action of the fifth vertical cylinder 5008, the picking gripper 5006 moves downward, initially pressing the push rod into the sheath. At this point, the picking gripper 5006 releases. Then, the primary positioning cylinder 5007 actuates, causing the primary positioning block to move downward and contact the push rod, further pressing the push rod into the sheath.

[0057] The push rod pressing device includes a pressing slide rail 6004 arranged vertically and a secondary positioning block 6002 slidably arranged on the pressing slide rail 6004. The secondary positioning block 6002 is connected to a pressing cylinder 6003 arranged vertically. The pressing cylinder 6003 drives the secondary positioning block 6002 to move up and down, thereby realizing the secondary pressing of the push rod. A hydraulic buffer 6005 is provided at the lower stroke end of the secondary positioning block.

[0058] During operation, the pressing cylinder 6003 controls the secondary positioning block 6002 to move downward, thereby pressing the push rod a second time. The hydraulic buffer 6005 provides cushioning for the secondary positioning block 6002. The cooperation between the push rod pressing device and the push rod and sheath assembly device not only avoids damage to the liquid medicine layer inside the sheath due to excessively fast or forceful push rod assembly, but also ensures that the installation depth of the push rod accurately meets the predetermined requirements.

[0059] The blood collection needle device includes a blood collection needle picking and feeding mechanism 7005 and a blood collection needle assembly mechanism. The blood collection needle picking and feeding mechanism 7005 is used to pick up the blood collection needle and pass it to the blood collection needle assembly mechanism. The blood collection needle assembly mechanism is used to install the blood collection needle upwards to the lower end of the sheath.

[0060] In this embodiment, the structure of the blood collection needle feeding and loading mechanism 7005 is basically the same as that of the sheath feeding and loading mechanism. It only needs to be replaced with a feed inlet, a distribution groove and a blood collection needle clamping module 7001 that are adapted to the shape of the blood collection needle.

[0061] The blood collection needle assembly mechanism includes a blood collection needle moving stage 7015 located below the fixture. The blood collection needle moving stage 7015 is slidably mounted on a vertically arranged blood collection needle assembly guide rail 7016. Below the blood collection needle moving stage 7015, there is a blood collection needle assembly cylinder 7014 arranged vertically. The blood collection needle assembly cylinder 7014 drives the blood collection needle moving stage 7015 to move up and down along the blood collection needle assembly guide rail 7016.

[0062] The blood collection needle moving platform is equipped with a blood collection needle clamp 7009, which is used to receive the blood collection needles transmitted by the blood collection needle picking and feeding mechanism. The blood collection needle clamp 7009 is connected to the blood collection needle assembly servo motor 7019 through the blood collection needle assembly transmission gear set 7017. The blood collection needle clamp 7009 is driven to rotate by the blood collection needle assembly servo motor 7019, so as to realize the screwing of the blood collection needle onto the sheath.

[0063] To ensure that the sheath does not loosen during the assembly of the blood collection needle, the blood collection needle assembly device also includes a lateral clamping mechanism located on one side of the side opening of the fixture, and an upper clamping mechanism located on the upper side of the upper opening of the fixture.

[0064] The lateral clamping mechanism includes a lateral clamping clamp 7011 and a lateral clamping cylinder 7010. The lateral clamping cylinder 7010 drives the lateral clamping clamp 7011 to move, thereby achieving lateral clamping and fixing of the sheath.

[0065] The upper clamping mechanism includes an upper clamping clamp 7012 and an upper clamping cylinder 7013. The upper clamping cylinder 7013 drives the upper clamping clamp 7012 to move downward, thereby clamping and fixing the upper side of the sheath.

[0066] During operation, the blood collection needle clamping module 7001 picks up the material and feeds the blood collection needle into the blood collection needle clamp 7009 for clamping. Then, the lateral clamping cylinder 7010 drives the lateral clamping clamp 7011 to horizontally clamp the protective sleeve, while the upper clamping cylinder 7013 drives the upper clamping clamp 7012 to vertically clamp the protective sleeve, preventing loosening when the blood collection needle is screwed onto the protective sleeve. Next, under the action of the blood collection needle assembly cylinder 7014, the blood collection needle moving table 7015 slides upward along the blood collection needle assembly guide rail 7016, causing the blood collection needle in the blood collection needle clamp 7009 to align with the lower end of the protective sleeve in the fixture 10. Then, through the engagement of the blood collection needle assembly transmission gear set 7017 and the action of the blood collection needle assembly servo motor 7019, the blood collection needle is screwed onto the protective sleeve. The servo motor 7019 for the blood collection needle controls the torque so that the blood collection needle stops automatically after it is screwed into place.

[0067] Product conformity is detected by sensors. These sensors can determine whether the product is assembled correctly by detecting the push rod and the blood collection needle. This is conventional technology in the field and will not be described in detail in this embodiment. Qualified products are unloaded through qualified unloading device 8, and unqualified products are unloaded through unqualified unloading device 9.

[0068] The qualified unloading device includes a finished product gripper module 8008, which is mounted on an unloading swing mechanism. The unloading swing mechanism enables the finished product gripper module 8008 to switch between horizontal and vertical states. The unloading swing mechanism is mounted on an unloading lifting mechanism and moves up and down with it; the unloading lifting mechanism is mounted on an unloading translation mechanism and moves horizontally with it.

[0069] Below the finished product gripper module 8008 is a finished product conveyor belt 8010, and the speed of the finished product conveyor belt 8010 is adjusted by a speed regulator 8009.

[0070] In this embodiment, the material feeding swing mechanism includes a swing plate 8011, a swing shaft, a movable seat, and a swing drive cylinder. The swing plate 8011 is suspended above the finished product conveyor belt 8010, and the finished product gripper module 8008 is mounted on the swing plate 8011. One end of the swing shaft is coaxially and fixedly connected to the swing plate 8011, and the other end of the swing shaft is mounted on the movable seat and rotates with it. A swing gear 8007 is provided on the swing shaft, and a rack 8006 is provided on the swing seat and rotates with it. The rack 8006 meshes with the swing gear 8007. The swing drive cylinder 8005 is mounted on the movable seat, and the moving end of the swing drive cylinder 8005 is connected to the rack 8006. During operation, the swing drive cylinder 8005 extends and retracts, causing the rack 8006 to move, which in turn causes the swing gear 8007 to rotate, thereby causing the swing shaft, the swing plate 8011, and the finished product gripper module 8008 to rotate, realizing the switching of the finished product gripper module 8008 between horizontal and vertical states.

[0071] In this embodiment, the unloading lifting mechanism includes an unloading lifting cylinder 8002, and a movable seat is installed on the movable end of the unloading lifting cylinder 8002. The unloading translation mechanism includes an unloading translation guide rail 8003 and an unloading translation seat that slides with the unloading translation guide rail 8003. The unloading lifting cylinder 8002 is installed on the unloading translation seat. An unloading translation cylinder 8001 is connected to the unloading translation seat, and the unloading translation seat is moved along the unloading translation guide rail 8003 by the unloading translation cylinder 8001.

[0072] During operation, the unloading translation cylinder 8001 pushes the unloading translation seat horizontally, which in turn moves the unloading lifting cylinder 8002, the moving seat, and the finished product gripper module 8008 together, allowing the finished product gripper module 8008 to move to the fixture and grasp the finished product. After the finished product gripper module 8008 grasps the finished product, the unloading lifting cylinder 8002 rises to release the product. The unloading translation cylinder 8001 retracts, and the swing drive cylinder 8005 pushes the rack 5006 to move, which in turn rotates the finished product gripper module 8008 by 90°, and then places the finished product onto the finished product conveyor belt 8010.

[0073] The unqualified unloading device includes an ejector cylinder 9002 located below the fixture and movable up and down, and an air knife blowing mechanism 9005 located above the fixture. A unloading slide 9003 is provided at a position corresponding to the air knife blowing mechanism 9005.

[0074] During operation, the ejector cylinder 9002 ejects upwards to push out the defective products in the jig 10, and the air knife blowing mechanism 9005 blows air into the unloading slide 9003.

[0075] This invention enables automated production of arterial blood gas needles, including automatic addition and drying of the drug solution, as well as automatic assembly of the push rod, blood collection needle, and sheath. This improves the production efficiency and quality of arterial blood gas needles and ensures product consistency.

[0076] The above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention.

[0077] If the terms "first" or "second" are used in this document to define components, those skilled in the art should know that the use of "first" or "second" is merely for the convenience of describing the invention and simplifying the description, and unless otherwise stated, the above terms have no special meaning.

[0078] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0079] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. An automated device for adding and assembling arterial blood gas needles, characterized in that: It includes an arterial blood gas needle assembly transport line, along which are sequentially provided a sheath feeding device, a liquid spraying device, a hot air blowing device, a push rod and sheath assembly device, a push rod pressing device, a blood collection needle loading device, a qualified product unloading device, and a non-qualified product unloading device.

2. The automated equipment for adding and assembling arterial blood gas needles according to claim 1, characterized in that: Multiple fixtures are distributed on the arterial blood gas needle assembly carrier line, and the fixtures move with the arterial blood gas needle assembly carrier line; one or more sheath positions are arranged on the fixture, and the sheath positions have side openings and top and bottom openings. After the sheath is installed into the sheath position of the fixture, the sheath is placed vertically.

3. The automated equipment for adding and assembling arterial blood gas needles according to claim 2, characterized in that: The sheath feeding device includes a sheath picking and feeding mechanism, which is used to pick up the sheath and put it into the sheath position of the fixture.

4. The automated equipment for adding and assembling arterial blood gas needles according to claim 2, characterized in that: The spraying device includes a liquid A spraying station and a liquid B spraying station; The spray station for liquid A is equipped with a liquid A spray valve, which is installed on the liquid A spray moving mechanism. The liquid A spray valve is aligned with the sheath opening and then liquid A is sprayed. The spray station for liquid B is equipped with a liquid B filling nozzle, which is mounted on a liquid B spray moving mechanism. The liquid B spray moving mechanism aligns the liquid B filling nozzle with the sheath opening and then sprays liquid B.

5. The automated equipment for adding and assembling arterial blood gas needles according to claim 2, characterized in that: The hot air blowing device is arranged in one or more sets along the arterial blood gas needle assembly transport line; Each hot air blowing device includes a lateral positioning mechanism, a lower blocking mechanism, and a hot air mechanism; The lateral positioning mechanism includes a lateral positioning block and a lateral positioning cylinder. The lateral positioning cylinder drives the lateral positioning block to move, thereby fixing the sheath laterally. The lower blocking mechanism includes a lower blocking plate and a blocking plate moving cylinder. The blocking plate moving cylinder drives the lower blocking plate to move upward, thereby sealing the lower end of the sheath. The hot air mechanism includes an array of hot air pipes, which are mounted on a hot air pipe moving mechanism. The hot air pipes are moved into the sheath by the hot air pipe moving mechanism to dry the liquid inside the sheath.

6. The automated equipment for adding and assembling arterial blood gas needles according to claim 2, characterized in that: The push rod and sheath assembly device includes a push rod picking and feeding mechanism and a push rod assembly mechanism. The push rod picking and feeding mechanism is used to pick up the push rod and pass it to the push rod assembly mechanism. The push rod assembly mechanism is used to press the push rod downward into the sheath.

7. The automated equipment for adding and assembling arterial blood gas needles according to claim 6, characterized in that: The push rod assembly mechanism includes a push rod moving table, which is mounted on the push rod assembly moving mechanism and is driven to move by the push rod assembly moving mechanism. The push rod moving table is equipped with a material picking gripper, which is located above the fixture and is used to receive the push rods transmitted by the push rod picking and feeding mechanism. Above the material picking gripper is a primary positioning block, which is installed on the moving end of the primary positioning cylinder. The primary positioning cylinder drives the primary positioning block to move up and down. The primary positioning cylinder is installed on the push rod moving table.

8. The automated equipment for adding and assembling arterial blood gas needles according to claim 2, characterized in that: The push rod device includes a pressing slide rail arranged vertically and a secondary positioning block slidably arranged on the pressing slide rail. The secondary positioning block is connected to a pressing cylinder. The pressing cylinder drives the secondary positioning block to move up and down, thereby realizing the secondary pressing of the push rod. A limit switch is provided at the end of the lower stroke of the secondary positioning block.

9. The automated equipment for adding and assembling arterial blood gas needles according to claim 2, characterized in that: The blood collection needle device includes a blood collection needle picking and feeding mechanism and a blood collection needle assembly mechanism. The blood collection needle picking and feeding mechanism is used to pick up the blood collection needle and pass it to the blood collection needle assembly mechanism. The blood collection needle assembly mechanism is used to install the blood collection needle upwards to the lower end of the sheath.

10. The automated equipment for adding and assembling arterial blood gas needles according to claim 9, characterized in that: The blood collection needle assembly mechanism includes a blood collection needle moving platform located below the fixture. The blood collection needle moving platform is mounted on the blood collection needle assembly moving mechanism, and the blood collection needle moving platform is moved by the blood collection needle assembly moving mechanism. The blood collection needle moving platform is equipped with a blood collection needle clamp, which is used to receive the blood collection needles transferred from the blood collection needle picking and feeding mechanism. The blood collection needle clamp is connected to the blood collection needle assembly servo motor through the blood collection needle assembly transmission component. The blood collection needle assembly servo motor drives the blood collection needle clamp to rotate, thereby turning the blood collection needle onto the sheath.

11. The automated equipment for adding and assembling arterial blood gas needles according to claim 9, characterized in that: The blood collection needle device also includes a lateral clamping mechanism located on one side of the side opening of the fixture, and an upper clamping mechanism located on the upper side of the upper opening of the fixture. The lateral clamping mechanism includes a lateral clamping clamp and a lateral clamping cylinder. The lateral clamping cylinder drives the lateral clamping clamp to move, thereby achieving lateral clamping and fixing of the sheath. The upper clamping mechanism includes an upper clamping clamp and an upper clamping cylinder. The upper clamping cylinder drives the upper clamping clamp to move downward, thereby clamping and fixing the upper side of the sheath.

12. The automated equipment for adding and assembling arterial blood gas needles according to claim 2, characterized in that: The qualified unloading device includes a finished product gripper module, which is installed on the unloading swing mechanism. The unloading swing mechanism enables the finished product gripper module to switch between horizontal and vertical states. A finished product conveyor belt is provided below the finished product gripper module. The material feeding swing mechanism is installed on the material feeding lifting mechanism and moves up and down with the material feeding lifting mechanism; The material unloading lifting mechanism is installed on the material unloading translation mechanism and moves horizontally along with the material unloading translation mechanism.

13. The automated equipment for adding and assembling arterial blood gas needles according to claim 12, characterized in that: The material feeding swing mechanism includes a swing plate, a swing shaft, a moving seat, and a swing drive cylinder; The swing plate is suspended above the finished product conveyor belt, and the finished product gripper module is installed on the swing plate; one end of the swing shaft is coaxially and fixedly connected to the swing plate, and the other end of the swing shaft is installed on the movable seat and rotates with it; the swing shaft is provided with a swing gear, and the swing seat is provided with a rack that moves with it, and the rack meshes with the swing gear. The swing drive cylinder is mounted on the movable base, and the moving end of the swing drive cylinder is connected to the rack; The movable seat is installed on the unloading lifting mechanism.

14. The automated equipment for adding and assembling arterial blood gas needles according to claim 2, characterized in that: The defective unloading device includes an ejection mechanism located below the fixture and movable up and down, and a blowing mechanism located above the fixture. A unloading chute is provided at a position corresponding to the blowing mechanism.

15. The automated equipment for adding and assembling arterial blood gas needles according to claim 3, 6, or 9, characterized in that: The sheath feeding and feeding mechanism, the push rod feeding and feeding mechanism, and the blood collection needle feeding and feeding mechanism have basically the same structure, all including a guiding structure, a distributing structure, and a feeding structure. The feeding structure includes a feed inlet, which is connected to the sheath / push rod / blood collection needle feeding mechanism; The feeding mechanism includes a turntable, which is mounted on a rotary drive unit, and the rotary drive unit is mounted on a vertical moving unit. One or more sets of clamping components are arranged circumferentially on the turntable. Each set of clamping components includes a clamping moving cylinder. The moving end of the clamping moving cylinder is respectively equipped with two parallel sleeve / push rod / blood collection needle clamping modules. The material distribution structure includes a material distribution base with two symmetrical material distribution slots, a left material distribution slot and a right material distribution slot. The material distribution base is mounted on a material distribution moving mechanism, which drives the material distribution base to switch between three positions: a left material distribution position, a feeding position, and a right material distribution position. When the material distribution base is in the left material distribution position, the left material distribution slot is connected to the feed inlet. When the material distribution base is in the right material distribution position, the right material distribution slot is connected to the feed inlet. When the material distribution base is in the feeding position, the left and right material distribution slots correspond to two sheath / push rod / blood collection needle clamping modules.

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