An assembly device for double-attached tubes of waste liquid bags

Abstract

The present invention discloses an assembly device for a double-attached tube of a waste liquid bag, wherein the double-attached tube of the waste liquid bag comprises two catheters, both of which are equipped with flow-stop clamps, the ends of the two catheters are connected by a tee, the front ends of the two catheters are equipped with a female needle base, one of the female needle bases is equipped with an antibacterial cap, the assembly device comprises a desktop, a single-tube chain conveying device and a double-tube chain conveying device for conveying the catheters are arranged on the desktop, and a catheter loading device, a flow-stop clamp loading and assembly device, a flow-stop clamp detection device, a single-tube gluing device, a female needle base loading and assembly device, an antibacterial cap tightening device, a first visual detection device and an unqualified unloading device are sequentially arranged in the moving direction of the single-tube chain conveying device; the beneficial effect of the present invention is that automatic loading and transportation of the catheters in the double-attached tube of the waste liquid bag is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an assembly device for double-attached tubes of a waste liquid bag. Background Art

[0002] Double-ended tubing for waste fluid bags is a consumable item primarily used in hemodialysis. It is primarily used for blood purification in patients with renal impairments and is essential for hemodialysis procedures, resulting in widespread clinical use. Currently, most production processes for double-ended tubing for waste fluid bags are completed by workers using simple tooling. This results in a low degree of automation and a high degree of reliance on workers, significantly impacting product quality. Furthermore, several assembly steps present numerous challenges: First, the tightening and tightening of the antibacterial cap assembly requires manual control of the force required; second, the bonding and assembly of the female needle base and tee assembly requires manual application of cyclohexanone glue to the tubing before installation. This manual assembly significantly impacts the product's appearance, resulting in poor consistency. Furthermore, the cyclohexanone odor poses a risk to worker health.

[0003] Patent publication number "CN206966990U" discloses "a mechanism for assembling a flow-stop clamp and a catheter." However, the device can only assemble the flow-stop clamp.

[0004] The patent with publication number “CN106041445A” discloses “a female needle base cover assembly device”, which can only assemble the female needle base and has a low degree of automation.

[0005] To this end, our company has proposed an assembly device for double-attached tubes of waste liquid bags. Summary of the Invention

[0006] The purpose of the present invention is to provide an assembly device for waste liquid bag double-attached tubes, which realizes the automated assembly of waste liquid bag double-attached tubes and greatly improves production efficiency and product quality.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] The utility model discloses an assembly device for a double-attached tube of a waste liquid bag, wherein the double-attached tube of the waste liquid bag comprises two catheters, both of which are equipped with flow-stop clamps, the ends of the two catheters are connected by a tee, the front ends of the two catheters are equipped with a female needle base, and an antibacterial cap is installed on one of the female needle bases. The assembly device comprises a desktop, on which a single-tube chain conveying device and a double-tube chain conveying device for conveying the catheters are arranged, and a catheter feeding device, a flow-stop clamp feeding and assembly device, a flow-stop clamp detection device, a single-tube gluing device, a female needle base feeding and assembly device, an antibacterial cap tightening device, a first visual inspection device and an unqualified discharge device are sequentially arranged in the moving direction of the single-tube chain conveying device, and a distance changing device, a double-tube gluing device, a tee feeding and assembly device, a second visual inspection device and a finished product discharge device are sequentially arranged in the moving direction of the double-tube chain conveying device.

[0009] The table is also provided with a transfer device for moving the catheter from the single-tube chain conveying device to the double-tube chain conveying device.

[0010] Preferably, the first visual inspection device includes a first camera for shooting, and the first camera is connected to a first inspection station servo motor for controlling its left and right movement.

[0011] Preferably, the first visual inspection device further comprises a first inspection station pipe clamp for clamping the catheter, the first inspection station pipe clamp being connected to a first inspection station pipe clamp telescopic rod for controlling its clamping action, the first inspection station pipe clamp telescopic rod being arranged on a first horizontal plate of the first inspection station, and a first inspection station material pulling telescopic rod for driving its movement being further arranged on the first horizontal plate of the first inspection station;

[0012] The first visual inspection device also includes a V-shaped plate for limiting the displacement of the flow stop clamp and a first inspection station descending telescopic rod, and a first inspection station pressing block for pressing the conduit is provided at the lower part of the first inspection station descending telescopic rod.

[0013] Preferably, the unqualified unloading device includes an unqualified clamp for clamping unqualified catheters, and the unqualified clamp is connected to an unqualified unloading station descending telescopic rod that controls its up and down movement and an unqualified unqualified unloading station synchronous belt mechanism that controls its forward and backward movement.

[0014] Preferably, the transfer device includes a transfer mechanism for temporarily storing the catheter, a material taking and clamping mechanism for moving the catheter from the single-tube chain conveyor device to the transfer mechanism, and a material unloading and clamping mechanism for moving the catheter from the transfer mechanism to the double-tube chain conveyor device;

[0015] The material taking and clamping mechanism and the material putting and clamping mechanism are both connected to a transfer station descending telescopic rod for controlling their up and down movement and a transfer station synchronous belt mechanism for controlling their forward and backward movement.

[0016] Preferably, the variable distance device includes a variable distance station clamping mechanism for clamping the catheter and a material shifting mechanism for shifting the catheter. The variable distance station clamping mechanism is installed on a variable distance station descending cylinder that can move left and right.

[0017] Preferably, the double-tube gluing device comprises an upper V-shaped clamp and a lower V-shaped clamp for clamping the catheter, a first glue box for containing glue, and a gluing clamp for taking glue from the first glue box and applying glue to the catheter;

[0018] The glue applying clamp is connected with a glue applying clamping cylinder for controlling its opening and closing, a glue taking telescopic rod for controlling its glue taking, and a glue applying telescopic rod for controlling its glue applying.

[0019] Preferably, the tee feeding and assembling device comprises:

[0020] The upper pipe clamp at the tee station and the lower pipe clamp at the tee station are used to clamp the conduit;

[0021] A tee station material channel mechanism for storing tees, a tee station material gripper for gripping the tees from the tee station material channel mechanism, and a tee station movable material channel for conveying the tees;

[0022] A tee station assembly fixture for clamping the tee from the tee station moving material channel;

[0023] A second glue box is used to take glue from the second glue box and apply the glue to the glue-coated contour structure on the tee clamped by the tee station assembly fixture;

[0024] Install the glued tee to the tee station servo motor of the conduit.

[0025] Preferably, the second visual inspection device includes a second camera for shooting, and the second camera is connected to a second inspection station servo motor that can drive the second camera to move left and right.

[0026] Preferably, the finished product unloading device includes a finished product unloading station fixture for clamping the catheter, and the finished product unloading station fixture is connected to a finished product unloading station descending cylinder that can move forward and backward.

[0027] The beneficial effects of the present invention are:

[0028] 1. Automatic loading and transportation of the catheter in the double-attached tube of the waste liquid bag is realized, and the flow stop clamp, female needle base, and antibacterial cap are assembled in sequence at the corresponding assembly stations. Then the catheters are grouped in pairs to form a double-attached tube structure. After assembly, some stations can also perform automated testing to prevent defective and waste products from entering the next process. After assembly, the finished attached tubes can also be automatically unloaded and transported, realizing automated processing.

[0029] 2. The main power components of this equipment are all cylinders, which have high operating precision and low working noise. At the same time, the equipment operation reliability is high, which effectively reduces the product defect rate and avoids the problem of reduced efficiency caused by frequent failure shutdowns.

[0030] 3. Through the setting of the first visual inspection device, the semi-finished product's attached tubes can be automatically inspected. Once unqualified products are found, they can be removed in the next unqualified blanking device to prevent them from continuing to move on to the next process, effectively ensuring product quality.

[0031] 4. The unqualified material removal device can promptly remove unqualified products found in the aforementioned "first visual inspection device". Moreover, since this application is a double-attached tube setting, when removing unqualified products, another product that matches the unqualified product (regardless of whether it is qualified or not) will be removed at the same time, thereby improving the yield rate.

[0032] 5. The transfer device can move the product from the single-tube chain conveyor device to the double-tube chain conveyor device. The single-tube chain conveyor device can conveniently assemble the front half of the product, while the double-tube chain conveyor device can smoothly assemble the second half of the product.

[0033] 6. The pitch-changing device can place the conduits on the double-tube chain conveyor device in groups of two, which is convenient for the subsequent installation of tees; the double-tube gluing device can apply glue to the ends of the conduits, and before installing the tee, the tee loading and assembly device will also apply glue to the corresponding installation positions of the tee, making the installation effect of the tee more reliable.

[0034] 7. The tee installation position at the end of the conduit is pre-coated with glue through a double-tube gluing device to ensure the installation quality of the tee and thus improve product quality. In the tee feeding and assembly device, the inside of the tee is also pre-coated with glue to further ensure the installation effect.

[0035] 8. The second visual inspection device can inspect the assembled finished products again and mark out the unqualified ones. The finished product unloading device will then transport the qualified and unqualified products to different locations for repackaging.

[0036] 9. In the finished product unloading device, qualified products and unqualified products found by the second visual inspection device can be classified separately, which is convenient for subsequent product packaging and improves the production efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the structure of the double attached tubes of the waste liquid bag assembled in the present invention;

[0038] Figure 2 This is a schematic diagram of the structure of the semi-finished product attached pipe on the single-tube chain conveyor device in the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the semi-finished product attached pipe on the double-pipe chain conveyor device in the present invention;

[0040] Figure 4 Schematic diagram of the structure of the first visual inspection device in the present invention;

[0041] Figure 5 Schematic diagram of the structure of the unqualified material unloading device in the present invention;

[0042] Figure 6 Schematic diagram of the structure of the transfer device in the present invention;

[0043] Figure 7 Schematic diagram of the structure of the pitch-changing device in the present invention;

[0044] Figure 8 Schematic diagram of the structure of the double-tube gluing device in the present invention;

[0045] Figure 9 for Figure 8 Schematic diagram of the structure of the glue coating fixture;

[0046] Figure 10 It is a structural schematic diagram of the tee feeding and assembling device in the present invention;

[0047] Figure 11 for Figure 10 Schematic diagram of the structure of the middle coating profiling structure;

[0048] Figure 12 for Figure 10 Schematic diagram of the structure of the assembly fixture of the middle three-way station;

[0049] Figure 13 Schematic diagram of the structure of the second visual inspection device in the present invention;

[0050] Figure 14 It is a structural schematic diagram of the finished product unloading device in the present invention;

[0051] Figure 15 A top view of the overall structure of the present invention;

[0052] Figure 16 for Figure 15 Schematic diagram of the upper middle part;

[0053] Figure 17 for Figure 15 Schematic diagram of the lower middle part.

[0054] The accompanying drawings are for illustrative purposes only and are not to be construed as limitations on this patent. To better illustrate this embodiment, some components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted from the accompanying drawings. DETAILED DESCRIPTION

[0055] The present invention will be further described below with reference to the accompanying drawings. Example

[0056] like Figure 1 As shown, this is a schematic diagram of the finished product structure of the double attached tube of the waste liquid bag produced in this embodiment. The attached tube includes two catheters 1801, and both catheters 1801 are equipped with a flow stop clamp 1802. The ends of the two catheters 1801 are connected by a tee 1805. The front ends of the two catheters 1801 are equipped with a female needle base 1803, and one of the female needle bases 1803 is equipped with an antibacterial cap 1804.

[0057] The assembly process is mainly divided into two steps: Figure 2 and Figure 3 As shown, the first step is: installing the flow stop clamp 1802 on the catheter 1801, then installing the female needle base 1803 at the front end thereof, and screwing the antibacterial cap 1804 on the female needle base 1803 (for the female needle base 1803 that has not been screwed with the antibacterial cap 1804, in the process of screwing the antibacterial cap 1804, there is no need to set the antibacterial cap screwing device, or the antibacterial cap screwing device can be idle, so that the antibacterial cap material box is empty); the second step is: grouping the catheter 1801 that has not been screwed with the antibacterial cap 1804 and the catheter 1801 that has been screwed with the antibacterial cap 1804 in pairs, and then installing the tee 1805.

[0058] Before the submission of this application, an affiliated company of the applicant submitted a prior application "Application No. 2024119099690, entitled "An assembly device for an extracorporeal blood circuit accessory tube". The application has disclosed an assembly device for installing a flow stop clamp 1802, a female needle base 1803 and an antibacterial cap 1804 on a catheter 1801 to assemble an extracorporeal blood circuit accessory tube. The finished product of the accessory tube is consistent with the product completed in the first step of this application. Therefore, in this embodiment, the focus is on explaining the assembly process of the second step.

[0059] like Figure 15 、 Figure 16 and Figure 17As shown, an assembly device for a double-attached tube of a waste liquid bag includes a table 17, on which are provided a single-tube chain conveyor 16 and a double-tube chain conveyor 15 for conveying a catheter 1801. A catheter loading device 1, a stop-clamp loading and assembly device 2, a stop-clamp detection device 3, a single-tube gluing device 4, a female needle base loading and assembly device 5, an antibacterial cap tightening device 6, a first visual inspection device 7, and a non-conforming discharge device 8 are sequentially provided in the moving direction of the single-tube chain conveyor 16. A pitch-changing device 10, a double-tube gluing device 11, a tee loading and assembly device 12, a second visual inspection device 13, and a finished product discharge device 14 are sequentially provided in the moving direction of the double-tube chain conveyor 15.

[0060] The movement of the catheter 1801 from the catheter loading device 1 to the antibacterial cap tightening device 6 mainly involves the content of the aforementioned first step, which will not be described in detail in this embodiment, and will be explained starting from the first visual inspection device 7.

[0061] like Figure 2 and Figure 3 As shown, in this embodiment, the single-tube chain conveyor 16 conveys 8 tubes 1801 at a time, whereas the double-tube chain conveyor 15 conveys 4 groups of tubes 1801 at a time. In some embodiments, the number of tubes 1801 conveyed at a time may vary.

[0062] A transfer device 9 is also provided on the table 17 for moving the conduit 1801 from the single-tube chain conveyor device 16 to the double-tube chain conveyor device 15 .

[0063] In this embodiment, for the convenience of explanation, in the horizontal direction, the conveying direction of the single-tube chain conveyor 16 and the double-tube chain conveyor 15 is defined as left and right, and the vertical direction is defined as front and back; the movement in the vertical direction is defined as up and down.

[0064] like Figure 4 As shown, the first visual inspection device 7 includes a first camera 707 for shooting, and the first camera 707 is connected to a first inspection station servo motor 703 for controlling its left and right movement.

[0065] The first visual inspection device 7 also includes a first inspection station pipe clamp 714 for clamping the conduit 1801. The first inspection station pipe clamp 714 is connected to a first inspection station pipe clamp telescopic rod 717 for controlling its clamping action. The first inspection station pipe clamp telescopic rod 717 is disposed on a first inspection station first transverse plate 715. The first inspection station first transverse plate 715 is also provided with a first inspection station material pulling telescopic rod 716 for driving the first inspection station material pulling telescopic rod 716 to move forward and backward.

[0066] The first visual inspection device 7 also includes a V-shaped plate 712 for limiting the displacement of the flow stop clamp 1802 and a first inspection station lowering telescopic rod 706. A first inspection station pressing block 710 is also provided at the lower portion of the first inspection station lowering telescopic rod 706 for pressing the conduit 1801. The first inspection station tube clamping telescopic rod 717, the first inspection station material pulling telescopic rod 716, and the first inspection station lowering telescopic rod 706 are all pneumatic cylinders.

[0067] The first inspection station first base plate 701 and the first inspection station second base plate 718 are arranged on the table top 17, the first inspection station second base plate 718 is provided with the first inspection station support plate 719, the first inspection station intermediate connecting plate 721 is provided on the first inspection station support plate 719, the first inspection station material pulling telescopic rod 716 is provided on the first inspection station intermediate connecting plate 721, and the first inspection station first horizontal plate 715 is fixed on the first inspection station intermediate connecting plate 721 through a guide rail. The first inspection station profile bracket 702 is fixed to the first inspection station first base plate 701. The first inspection station profile bracket 702 is mounted with a first inspection station single-axis driver 704 and a first inspection station lifting cylinder 720. The first inspection station single-axis driver 704 is mounted with a first inspection station back plate 705. The first inspection station single-axis driver 704 is connected to the first inspection station servo motor 703 via a coupling. The first inspection station lowering telescopic rod 706 is mounted on the first inspection station back plate 705. The first visual inspection device 7 also includes a first inspection station light source structure 713 for supplementary lighting. The first inspection station light source structure 713 is mounted with a first inspection station product support plate 711 and a V-shaped plate 712.

[0068] When the single-tube chain conveyor 16 arrives at this station with the conduit 1801, the first inspection station ascending cylinder 720 is actuated to drive the V-shaped plate 712 to move to the designated position to position the conduit 1801 and the flow-stop clamp 1802; then the first inspection station material pulling telescopic rod 716 pushes the first inspection station first cross plate 715 forward, and the first inspection station clamping telescopic rod 717 is actuated to make the first inspection station clamping fixture 714 clamp the conduit 1801; then the first inspection station descending telescopic rod 706 is moved downward to make the first inspection station pressing block 710 press the conduit 1801 tightly. 801 (crimp the end of the female needle base 1803 and press the catheter 1801 to the position where it contacts the product support plate 711 of the first inspection station. The force is controlled by the spring force, which is about 2N. The purpose of crimping is to control the height of the catheter 1801 to the same position to facilitate visual inspection and improve the inspection pass rate); then the first inspection station servo motor 703 drives the first camera 707 to move left (or right), photographing the catheter 1801 in turn, and then outputting the inspection results to the PLC controller to facilitate the removal of unqualified products in the unqualified blanking device 8. Afterwards, the material pulling telescopic rod 716 of the first inspection station moves backward and retracts, so that the first horizontal plate 715 of the first inspection station and the conduit 1801 clamped by the first inspection station tube clamp 714 move backward to the specified position, and the conduit 1801 is pulled to the specified length to meet the process requirements of the subsequent stations (the stretching is for the subsequent sorting station. After the stretching standard exceeds the set distance, the product can be aligned after sorting. That is: the ends of the conduit 1801 are aligned, and the flow stop clamp 1802 installed thereon is also aligned. After the flow stop clamp 1802 is blocked by the V-shaped plate 712, the flow stop clamp 1802 is aligned at this time, and then the conduit 1801 is pulled until the conduit 1801 is aligned. Because the clamping of the conduit 1801 by the first inspection station tube clamp 714 is not a dead clamp, the first inspection station tube clamp 714 cannot continue to pull the conduit 1801 to move in the aligned position of the conduit 1801). Finally, all actions are reset to complete the inspection function of this station.

[0069] like Figure 5 As shown, the unqualified unloading device 8 includes an unqualified clamp 804 for clamping the unqualified catheter 1801, and the unqualified clamp 804 is connected to the unqualified unloading station lowering telescopic rod 811 that controls its up and down movement and the unqualified unqualified unloading station synchronous belt mechanism 808 that controls its forward and backward movement.

[0070] The first base plate 801 of the unqualified blanking station and the second base plate 802 of the unqualified blanking station are installed on the table 17, on which the unqualified blanking station profile bracket 803 is installed, and the unqualified blanking station synchronous belt mechanism 808 is installed on the unqualified blanking station profile bracket 803; the unqualified blanking station servo motor 813 is fixed on the reducer 814, which is connected to the unqualified blanking station synchronous belt mechanism 808 through the unqualified blanking station coupling 815 to form a mechanism for transporting products; the unqualified clamp 804 is fixed on the unqualified blanking station cylinder clamp 805, and the unqualified clamp 804 and the unqualified blanking station cylinder clamp 805 are each set at 8 locations, corresponding to the 8 conduits for single transportation in this embodiment. The cylinder clamp 805 of the unqualified blanking station is fixed on the first horizontal plate 806 of the unqualified blanking station; the first horizontal plate 806 of the unqualified blanking station is connected to the unqualified blanking station lowering telescopic rod 811, and can be moved through the unqualified blanking station guide shaft 809. The unqualified blanking station U-shaped fixed plate 810 is connected to the two unqualified blanking station guide shafts 809. The unqualified blanking station lowering telescopic rod 811 is fixed on the second horizontal plate 812 of the unqualified blanking station. The second horizontal plate 812 of the unqualified blanking station is installed on the unqualified blanking station guide rail 807 and is connected to the unqualified blanking station synchronous belt mechanism 808.

[0071] When the single-tube chain conveyor 16 arrives at this station with the guide tube 1801, if the first visual inspection device 7 in the previous step detects unqualified products, the unqualified unloading station servo motor 813 drives the unqualified unloading station synchronous belt mechanism 808 to move, thereby driving the unqualified unloading station second horizontal plate 812 and the unqualified unloading station lowering telescopic rod 811, the unqualified unloading station first horizontal plate 806, the unqualified clamp 804, and the unqualified unloading station cylinder clamp 805 to move to the material taking position, and the unqualified unloading station lowering telescopic rod 812 is driven by the unqualified unloading station. After the unqualified product is moved downward to the designated position, the cylinder clamp 805 of the unqualified unloading station corresponding to the unqualified product is activated, controlling the corresponding unqualified fixture 804 to clamp the unqualified product. Then, the unqualified unloading station lowering telescopic rod 811 returns to its original position, and the unqualified unloading station servo motor 813 is restarted, causing the unqualified fixture 804 and the unqualified unloading station cylinder clamp 805 to move to the unqualified area. The unqualified fixture 804 returns to its original position, releasing the product and placing it in the unqualified area, completing the unqualified unloading function of this station. If the first visual inspection device 7 did not detect an unqualified product in the previous step, then the components of this station will not operate.

[0072] It should be noted that, in this embodiment, the eight catheters 1801 used in a single transport are numbered as 1, 2, 3, 4, 5, 6, 7, and 8 along their transport direction. Figure 2 and Figure 3As shown, after moving from the single-tube chain conveyor 16 to the double-tube chain conveyor 15, catheters 1801 (not fitted with antibacterial caps 1804) are moved to catheters 2, 4, 6, and 8 (fitted with antibacterial caps 1804), respectively, to form groups of two. If catheter 1801 is found unqualified at the first visual inspection device 7, catheter 2 1801 is also marked as unqualified, regardless of whether it passes. This ensures that both catheters 1801 are placed in the unqualified area at the unqualified unloading device 8.

[0073] like Figure 6 As shown, the transfer device 9 includes a transfer mechanism 903 for temporarily storing the conduit 1801, a material taking and clamping mechanism 907 for moving the conduit 1801 from the single-tube chain conveyor 16 to the transfer mechanism 903, and a material unloading and clamping mechanism 905 for moving the conduit 1801 from the transfer mechanism 903 to the double-tube chain conveyor 15;

[0074] The material taking and clamping mechanism 907 and the material unloading and clamping mechanism 905 are both connected to the transfer station descending telescopic rod 910 that controls their up and down movement and the transfer station synchronous belt mechanism 909 that controls their forward and backward movement.

[0075] The first base plate 901 of the transfer station, the second base plate 902 of the transfer station, and the third base plate 904 of the transfer station are all fixed on the desktop 17, on which a transfer station profile bracket 908 is provided. The transfer mechanism 903 is installed on the second base plate 902 of the transfer station. The transfer station movable cross plate 906 is connected to the transfer station synchronous belt mechanism 909 and is installed on the transfer station profile bracket 908 through a guide rail. The transfer station movable cross plate 906 is also installed with a material picking and clamping mechanism 907, a material unloading and clamping mechanism 905, and a transfer station descending telescopic rod 910. The transfer station synchronous belt mechanism 909 is connected to the transfer station servo motor 912 through the transfer station coupling 914.

[0076] When the single-tube chain conveyor 16 arrives at this station with the product, the transfer station servo motor 912 is actuated, and the transfer station synchronous belt mechanism 909 drives the transfer station moving cross plate 906 to the material-picking position. Then the transfer station descends the telescopic rod 910 and moves down. The material-picking clamping mechanism 907 clamps the product of the single-tube chain conveyor 16, and the material-discharging clamping mechanism 905 clamps the product stored on the transfer mechanism 903 (placed by the material-picking clamping mechanism 907 during the last action). Then the transfer station descends the telescopic rod 910 and moves up. The transfer station moving cross plate 906 moves to the material-discharging position. The transfer station descends the telescopic rod 910 and moves down. The material-picking clamping mechanism 907 releases the clamped product and places the product on the transfer mechanism 903. The material-discharging clamping mechanism 905 releases the clamped product and places the product on the double-tube chain conveyor 15. Finally, all actions are reset to transfer the product from the single-tube chain conveyor 16 to the double-tube chain conveyor 15.

[0077] like Figure 7 As shown, the variable distance device 10 includes a variable distance station clamping mechanism for clamping the conduit 1801 and a material shifting mechanism 1013 for shifting the conduit 1801. The variable distance station clamping mechanism is installed on a variable distance station descending cylinder 1009 that can move left and right.

[0078] The variable distance station base plate 1001 is fixed on the table top 17, and the variable distance station cross plate 1006 is fixed on the variable distance station base plate 1001 through two variable distance station support plates 1002; the variable distance station cross plate 1006 is provided with a variable distance station servo motor 1008 and a variable distance station single-axis driver 1007, and the variable distance station single-axis driver 1007 is installed with a variable distance station descending cylinder 1009. When the variable distance station servo motor 1008 rotates, the variable distance station descending cylinder 1009 can move back and forth on the single-axis driver 1007. The variable distance station descending cylinder 1009 is also connected to the variable distance station first intermediate connecting plate 1010 driven by it. The variable distance station first intermediate connecting plate 1010 is provided with the variable distance station left clamping cylinder 1011 and the variable distance station right clamping cylinder 1005. The two are respectively connected to the variable distance station left clamping mechanism 1012 and the variable distance station right clamping mechanism 1004. The variable distance station left clamping mechanism 1012 and the variable distance station right clamping mechanism 1004 constitute the aforementioned variable distance station clamping mechanism. The variable distance station support plate 1002 is also provided with the variable distance station ascending cylinder 1016. The variable distance station ascending cylinder 1016 is connected to the material discharging cylinder 1014 through the variable distance station second intermediate connecting plate 1015. The material discharging cylinder 1014 is equipped with the material discharging mechanism 1013.

[0079] When the double-tube chain conveyor 15 brings the product to this workstation, the variable-pitch workstation ascending cylinder 1016 drives the material-dispensing cylinder 1014 and the material-dispensing mechanism 1013 to move downward to the designated position, and the material-dispensing cylinder 1014 drives the material-dispensing mechanism 1013 to move left to open the four tubes 1801 with antibacterial caps 1804 installed (it is assumed that no unqualified products were found in the above-mentioned process. If there are unqualified products, they may be 3 / 2 / 1 / 0. Because the unqualified rate is low, if there are unqualified products, the material-dispensing mechanism 1013 is equivalent to idling during the action process, that is, there is no corresponding tube 1801 at the material-dispensing mechanism 1013 at this location). The material-dispensing mechanism 1013 corresponds one-to-one to the four tubes 1801 with antibacterial caps 1804 installed, and opens them respectively to place the four tubes 1801 without antibacterial caps 1804. Then the variable distance station servo motor 1008 rotates, causing the variable distance station descending cylinder 1009 to move right to the material picking position. Then the variable distance station descending cylinder 1009 extends to drive the variable distance station left clamping mechanism 1012 and the variable distance station right clamping mechanism 1004 to move downward to clamp the four catheters 1801 that are not equipped with antibacterial caps 1804. Then, the variable-distance station descending cylinder 1009 retracts and returns to its original position, moving leftward to return to the unloading position. The variable-distance station descending cylinder 1009 extends, and the variable-distance station left clamping mechanism 1012 and the variable-distance station right clamping mechanism 1004 place the four uncapped tubes 1801 on either side of the four tubes 1801 with caps 1804 installed, forming groups of two. (Note that if the product spacing is small, the variable-distance station left clamping mechanism 1012 and the variable-distance station right clamping mechanism 1004 simultaneously releasing the tubes 1801 will cause interference between the components. In this case, one clamping mechanism can be released first, then the other to avoid interference.) Finally, all actions are reset, completing the product variable-distance transfer.

[0080] like Figure 8 and Figure 9 As shown, the double-tube glue coating device 11 includes an upper V-shaped clamp 1107 and a lower V-shaped clamp 1108 for clamping the catheter 1801, a first glue box 1104 for containing glue, and a glue coating clamp 1111 for taking glue from the first glue box 1104 and coating the catheter 1801 with glue;

[0081] The gluing fixture 1111 is connected to a gluing jaw cylinder 1112 for controlling its opening and closing, a gluing telescopic rod 1116 for controlling its gluing, and a gluing telescopic rod 1118 for controlling its gluing.

[0082] The gluing station base plate 1101 is installed on the table top 17, and two gluing station first vertical plates 1102 and two gluing station second vertical plates 1103 are installed on the gluing station base plate 1101. The two gluing station first vertical plates 1102 are installed with the gluing station first horizontal plate 1105 and the gluing station second horizontal plate 1110. The two gluing station second vertical plates 1103 are installed with the gluing station third horizontal plate 1122 and the first glue box 1104.

[0083] The upper tube clamping cylinder 1106 of the gluing station is installed on the first horizontal plate 1105 of the gluing station, and the upper V-shaped clamp 1107 is installed on the upper tube clamping cylinder 1106 of the gluing station. The lower tube clamping cylinder 1109 of the gluing station is installed on the second horizontal plate 1110 of the gluing station, and the lower V-shaped clamp 1108 is installed on the lower tube clamping cylinder 1109 of the gluing station.

[0084] The third horizontal plate 1122 of the gluing station is equipped with a gluing telescopic rod 1118 and a gluing station guide shaft 1117, and the ends of the two are equipped with a gluing station connecting block 1120, and the gluing station connecting block 1120 is connected to the glue-taking telescopic rod 1116 through two gluing station support columns 1115, and the gluing station connecting block 1120 is also connected to two gluing station support plates 1121 through a gluing station support shaft 1119, and the two gluing station support plates 1121 are connected to the gluing station back plate 1113, and the gluing station back plate 1113 is equipped with a gluing claw cylinder 1112, and the gluing claw cylinder 1112 is connected to the gluing fixture 1111, and the gluing station back plate 1113 is also connected to the glue-taking telescopic rod 1116 through the gluing station fixed block 1114.

[0085] When the double-tube chain conveyor 15 brings the product to this station, the upper tube clamping cylinder 1106 and the lower tube clamping cylinder 1109 of the gluing station move relative to each other, so that the upper V-shaped clamp 1107 and the lower V-shaped clamp 1108 clamp the guide tube 1801; then the glue-taking telescopic rod 1116 extends downward, so that the glue-taking clamp 1111 is immersed downward into the first glue box 1104, and then the glue-taking telescopic rod 1116 is reset to make the glue-taking clamp 1111, which has been dipped in glue, escape from the first glue box 1104; (the glue-taking clamping claw cylinder 111 2. The gluing fixture 1111, the gluing station back plate 1113, the gluing station fixed block 1114, and the two gluing station support plates 1121 move as a whole. There is a ball bearing between the glue-taking telescopic rod 1116 and the gluing station fixed block 1114, which can be rotated. There is a ball bearing between the two gluing station support plates 1121 and the gluing station support shaft 1119, which can be rotated. When the glue-taking telescopic rod 1116 is extended, the aforementioned device swings downward as a whole, so that the gluing fixture 1111 can take glue). Afterwards, the gluing fixture 1111 is opened under the action of the gluing claw cylinder 1112 (to facilitate the insertion of the catheter 1801), and the gluing telescopic rod 1118 is extended so that the gluing fixture 1111 is sleeved on the outside of the catheter 1801. Then, the gluing claw cylinder 1112 controls the gluing fixture 1111 to close and smears the glue it has dipped on the catheter 1801; finally, the gluing telescopic rod 1118 is retracted and returned to its original position, completing the double-tube gluing function.

[0086] like Figure 10 、 Figure 11 and Figure 12 As shown, the tee feeding and assembling device 12 includes:

[0087] An upper pipe clamp 1218 and a lower pipe clamp 1219 at a three-way station for clamping the conduit 1801;

[0088] A tee station material channel mechanism 1206 for storing the tee 1805 , a tee station material taking clamp 1236 for gripping the tee 1805 from the tee station material channel mechanism 1206 , and a tee station moving material channel 1233 for conveying the tee 1805 ;

[0089] The tee station assembly fixture 1227 is used to clamp the tee 1805 from the tee station moving channel 1233;

[0090] The second glue box 1222 takes glue from the second glue box 1222 and applies the glue to the glue-coated contour structure 1225 on the tee 1805 clamped by the tee station assembly fixture 1227;

[0091] Install the glue-coated tee 1805 to the tee station servo motor 1213 of the conduit 1801.

[0092] The tee station base plate 1201 is installed on the table 17, and two tee station first vertical plates 1202, two tee station second vertical plates 1203, and two tee station third vertical plates 1204 are respectively installed on the tee station base plate 1201. The tee station first vertical plate 1202, the tee station second vertical plate 1203, and the tee station third vertical plate 1204 are installed with a tee station fixed plate 1235, and the tee station fixed plate 1235 is installed with a tee station upper pipe clamping cylinder 1217, and the tee station upper pipe clamping cylinder 1217 is connected to the tee station upper pipe clamping fixture 1218, and the tee station third vertical plate 1204 is installed with a tee station first horizontal plate 1220, and the tee station first horizontal plate 1220 is installed with a tee station lower pipe clamping fixture 1219, and the tee station lower pipe clamping fixture 1219 is connected with a small telescopic cylinder.

[0093] The tee station fixed plate 1235 is equipped with a tee station translation cylinder 1208, which is connected to the tee station second horizontal plate 1210 that can move along the tee station fixed plate 1235. The tee station second horizontal plate 1210 is equipped with a tee station material picking cylinder 1212 and a tee station first guide shaft 1211. The tee station material picking clamp 1236 is equipped with the tee station material picking cylinder 1212, and the tee station material picking clamp 1207 is also equipped with the tee station material picking clamp 1236.

[0094] The first vertical plate 1202 of the tee station is mounted with the third horizontal plate 1205 of the tee station. The third horizontal plate 1205 of the tee station is mounted with the tee station material channel mechanism 1206 and the material transfer cylinder 1234. The material transfer cylinder 1234 is connected to the tee station movable material channel 1233. The tee station material channel mechanism 1206 is connected to the vibrating material tray, which can directly vibrate the tee 1805 into the tee station material channel mechanism 1206.

[0095] The fourth horizontal plate 1221 of the tee station is installed on the third vertical plate 1204 of the tee station, and the top glue cylinder 1223 and the second glue box 1222 are installed on the fourth horizontal plate 1221 of the tee station. A rotating mechanism 1224 is provided at the end of the top glue cylinder 1223, and the rotating mechanism 1224 is connected to the rotating cylinder 1226. A glue-coating profiling structure 1225 is provided on the rotating mechanism 1224. The glue-coating profiling structure 1225 is cylindrical, and its outer diameter is consistent with the inner diameter of the tee 1805. It is used to apply glue to the inner diameter of the tee 1805, so that the bonding between the tee 1805 and the conduit 1801 is more reliable.

[0096] The tee station fixed plate 1235 is equipped with a tee station intermediate connecting plate 1229 and a tee station synchronous belt mechanism 1216, the tee station intermediate connecting plate 1229 is equipped with a tee station assembly clamp 1228, the tee station assembly clamp 1228 is provided with a tee station assembly fixture 1227, the tee station intermediate connecting plate 1229 is also connected to a tee station lifting cylinder 1232 that drives it to move along the tee station second guide axis 1231, the tee station lifting cylinder 1232 is installed on the tee station fifth horizontal plate 1230, and the tee station synchronous belt mechanism 1216 drives the tee station fifth horizontal plate 1230 to move through the tee station servo motor 1213, the tee station reducer 1214 and the tee station coupling 1215.

[0097] When the double-tube chain conveyor 15 brings the product to this station, the upper tube clamp 1218 of the tee station and the lower tube clamp 1219 of the tee station clamp the conduit 1801; the tee station picking cylinder 1212 moves downward to the specified position, and the tee station picking clamp 1207 grabs the tee 1805 from the tee station material channel mechanism 1206; then the tee station picking cylinder 1212 moves upward to reset, and the tee station translation cylinder 1208 drives the second horizontal plate 1210 of the tee station and the tee station picking cylinder 1212 to move upward to reset, and the tee station translation cylinder 1208 drives the second horizontal plate 1210 of the tee station and the tee station picking cylinder 1212 to move upward to reset, and the tee station The material cylinder 1212 moves horizontally to the designated position, the tee station material cylinder 1212 moves downward, and the tee station material clamp 1207 places the tee 1805 on the tee station moving material channel 1233; then the material transfer cylinder 1234 is activated to move the tee 1805 to the designated position; at this time, the tee station servo motor 1213 drives the tee station fifth horizontal plate 1230 to move to the material removal position, the tee station lifting cylinder 1232 moves downward to the designated position, and the tee station assembly clamp 1227 clamps the tee The tee 1805 on the station moving material channel 1233 is then moved up and reset by the tee station lifting cylinder 1232. At the same time, the rotary cylinder 1226 rotates to the specified position to immerse the glue-coating profiling structure 1225 into the second glue box 1222. The rotary cylinder 1226 is then reset, and the glue-top cylinder 1223 moves up to lift the glue-coating profiling structure 1225. The tee station servo motor 1213 drives the tee station assembly fixture 1227 to move so that the tee 1805 it has clamped is inserted into the glue-coating profiling structure. The tee 1805 is placed on the structure 1225 and stays for 0.2 seconds to apply glue to the inner wall of the tee 1805; then the tee station servo motor 1213 drives the tee 1805 that has been glued to return to the specified position, and the glue-pushing cylinder 1223 moves down and resets; the tee station servo motor 1213 again drives the tee station assembly fixture 1227 to move and assemble the glue-coated tee 1805 to the clamped conduit 1801. Finally, all actions begin to reset to the initial state, completing the loading and assembly functions of the tee 1805.

[0098] like Figure 13As shown, the second visual inspection device 13 includes a second camera 1305 for shooting, and the second camera 1305 is connected to a second inspection station servo motor 1303 that can drive it to move left and right.

[0099] The second inspection station base plate 1301 is fixed on the desktop 17, the second inspection station profile bracket 1302 is fixed on the second inspection station base plate 1301, the second inspection station profile bracket 1302 is installed with the second inspection station lifting cylinder 1306 and the second inspection station single-axis driver 1304, the second inspection station lifting cylinder 1306 is installed with the second inspection station V-shaped clamp 1307 and the second inspection station light source structure 1308 (the second inspection station V-shaped clamp 1307 shown in the figure is only the lower half, in actual use, the corresponding upper half is also required. In this embodiment, in order to better display the product, the upper half is not shown), the second inspection station single-axis driver 1304 is provided with a second camera 1305, and the second inspection station single-axis driver 1304 is connected to the second inspection station servo motor 1303.

[0100] When the double-tube chain conveyor 15 arrives at this station with the product, the second inspection station lifting cylinder 1306 moves upward, causing the second inspection station V-shaped clamp 1307 to move upward. During this process, the conduit 1801 on the double-tube chain conveyor 15 falls into the second inspection station V-shaped clamp 1307 and is secured. The second inspection station servo motor 1303 then drives the second camera 1305 to move, sequentially capturing images of the conduit 1801 and outputting the inspection results to the PLC controller. Finally, all actions are reset, completing the three-way visual inspection function at this station.

[0101] like Figure 14 As shown, the finished product unloading device 14 includes a finished product unloading station fixture 1410 for clamping the conduit 1801, and the finished product unloading station fixture 1410 is connected to the finished product unloading station descending cylinder 1408 which can move forward and backward.

[0102] The first base plate 1401 of the finished product unloading station and the second base plate 1402 of the finished product unloading station are installed on the table 17, on which the finished product unloading station profile bracket 1403 is also installed. The finished product unloading station profile bracket 1403 is installed with the finished product unloading station synchronous belt assembly 1411. The finished product unloading station servo motor 1407 is connected to the finished product unloading station synchronous belt assembly 1411 through the finished product unloading station reducer 1412 and the finished product unloading station coupling 1413. The finished product unloading station synchronous belt assembly 1411 can drive the finished product unloading station The first horizontal plate 1405 of the finished product unloading station moves along the guide rail, and the finished product unloading station guide shaft 1414 and the finished product unloading station descending cylinder 1408 are installed on the first horizontal plate 1405 of the finished product unloading station, and the end of the finished product unloading station descending cylinder 1408 is installed with the second horizontal plate 1409 of the finished product unloading station, and 4 finished product unloading station cylinder clamps 1404 are installed on the second horizontal plate 1409 of the finished product unloading station, and the finished product unloading station clamp 1410 is installed on the finished product unloading station cylinder clamp 1404, and the number of the two corresponds to 4.

[0103] When the double-tube chain conveyor 15 brings the product to this station, the finished product unloading station servo motor 1407 drives the finished product unloading station synchronous belt mechanism 1411 and the finished product unloading station clamp 1410 to move to the material picking position, and then the finished product unloading station descending cylinder 1408 moves down to the specified position, and the finished product unloading station clamp 1410 clamps the conduit 1801; then, the finished product unloading station descending cylinder 1408 moves up and resets, and the finished product unloading station synchronous belt mechanism 1411 moves to the qualified area position, and the finished product unloading station clamp 1410 that clamps the qualified conduit 1801 is released and put down; if there are unqualified products, the finished product unloading station synchronous belt mechanism 1411 continues to move to the unqualified area, and the finished product unloading station clamp 1410 that clamps the unqualified conduit 1801 is released and put down (if all are qualified products / unqualified products, there is no need to go to the unqualified area / qualified area).

[0104] Each moving component of this device uses a motor or pneumatic cylinder, ensuring reliable operation, low noise, and high stability. During use, the program settings enable automated assembly and testing of the extracorporeal blood circuit tubing, resulting in high assembly quality, effectively reducing product defect rates, and avoiding the problem of reduced efficiency caused by frequent malfunctions and downtime.

[0105] The above embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of protection of the technical solution of the present invention.

[0106] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the protection content of the present invention.

[0107] If words such as "first" and "second" are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, the above words have no special meaning.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An assembly device for a double-attached tube for a waste liquid bag, the double-attached tube for the waste liquid bag comprising two catheters (1801), both of which are equipped with a stop clamp (1802), the ends of the two catheters (1801) being connected by a tee (1805), the front ends of the two catheters (1801) being equipped with a female needle base (1803), one of the female needle bases (1803) being equipped with an antibacterial cap (1804), and characterized in that: The assembly device includes a table (17), on which a single-tube chain conveying device (16) and a double-tube chain conveying device (15) for conveying a catheter (1801) are arranged. A catheter loading device (1), a stop clamp loading and assembly device (2), a stop clamp detection device (3), a single-tube gluing device (4), a female needle base loading and assembly device (5), an antibacterial cap tightening device (6), a first visual inspection device (7) and an unqualified unloading device (8) are arranged in sequence in the moving direction of the single-tube chain conveying device (16). A pitch-changing device (10), a double-tube gluing device (11), a three-way loading and assembly device (12), a second visual inspection device (13) and a finished product unloading device (14) are arranged in sequence in the moving direction of the double-tube chain conveying device (15); The table (17) is also provided with a transfer device (9) for moving the catheter (1801) from the single-tube chain conveyor device (16) to the double-tube chain conveyor device (15); The first visual inspection device (7) further comprises a first inspection station pipe clamp (714) for clamping the conduit (1801), the first inspection station pipe clamp (714) being connected to a first inspection station pipe clamp telescopic rod (717) for controlling its clamping action, the first inspection station pipe clamp telescopic rod (717) being arranged on a first inspection station first transverse plate (715), and a first inspection station material pulling telescopic rod (716) for driving the first inspection station first transverse plate (715) being further arranged; The first visual inspection device (7) further comprises a V-shaped plate (712) for limiting the displacement of the flow-stop clamp (1802) and a first inspection station descending telescopic rod (706), wherein a first inspection station pressing block (710) for pressing the conduit (1801) is provided at the lower portion of the first inspection station descending telescopic rod (706).

2. The assembly device for double-attached tubes of waste liquid bags according to claim 1, characterized in that: The first visual inspection device (7) comprises a first camera (707) for photographing, and the first camera (707) is connected to a first inspection station servo motor (703) for controlling its left and right movement.

3. The assembly device for double-attached tubes of waste liquid bags according to claim 1, characterized in that: The unqualified material removal device (8) comprises an unqualified clamp (804) for clamping unqualified conduits (1801), the unqualified clamp (804) being connected to an unqualified material removal station descending telescopic rod (811) for controlling its up and down movement and an unqualified material removal station synchronous belt mechanism (808) for controlling its forward and backward movement.

4. The assembly device for double-attached tubes of waste liquid bags according to claim 1, characterized in that: The transfer device (9) includes a transfer mechanism (903) for temporarily storing the catheter (1801), a material taking and clamping mechanism (907) for moving the catheter (1801) from the single-tube chain conveyor (16) to the transfer mechanism (903), and a material unloading and clamping mechanism (905) for moving the catheter (1801) from the transfer mechanism (903) to the double-tube chain conveyor (15); The material taking and clamping mechanism (907) and the material unloading and clamping mechanism (905) are both connected to a transfer station descending telescopic rod (910) that controls their up and down movement and a transfer station synchronous belt mechanism (909) that controls their forward and backward movement.

5. The assembly device for double-attached tubes of waste liquid bags according to claim 1, characterized in that: The variable distance device (10) comprises a variable distance station clamping mechanism for clamping the conduit (1801) and a material shifting mechanism (1013) for shifting the conduit (1801). The variable distance station clamping mechanism is mounted on a variable distance station descending cylinder (1009) that can move left and right.

6. The assembly device for double-attached tubes of waste liquid bags according to claim 1, characterized in that: The double-tube glue coating device (11) comprises an upper V-shaped clamp (1107) and a lower V-shaped clamp (1108) for clamping the catheter (1801), a first glue box (1104) for containing glue, and a glue coating clamp (1111) for taking glue from the first glue box (1104) and coating the catheter (1801). The gluing fixture (1111) is connected to a gluing jaw cylinder (1112) for controlling its opening and closing, a gluing telescopic rod (1116) for controlling its gluing, and a gluing telescopic rod (1118) for controlling its gluing.

7. The assembly device for double-attached tubes of waste liquid bags according to claim 1, characterized in that: The three-way feeding and assembling device (12) comprises: A three-way station upper pipe clamp (1218) and a three-way station lower pipe clamp (1219) for clamping the conduit (1801); A tee station material channel mechanism (1206) for storing the tee (1805), a tee station material taking clamp (1236) for clamping the tee (1805) from the tee station material channel mechanism (1206), and a tee station moving material channel (1233) for conveying the tee (1805); A tee station assembly fixture (1227) for clamping the tee (1805) from the tee station moving material channel (1233); A second glue box (1222), taking glue from the second glue box (1222) and applying the glue to the glue-coating contour structure (1225) on the tee (1805) clamped by the tee station assembly fixture (1227); Install the glue-coated tee (1805) to the tee station servo motor (1213) of the conduit (1801).

8. The assembly device for double-attached tubes of waste liquid bags according to claim 1, characterized in that: The second visual inspection device (13) comprises a second camera (1305) for photographing, and the second camera (1305) is connected to a second inspection station servo motor (1303) capable of driving the second camera (1305) to move left and right.

9. The assembly device for double-attached tubes of waste liquid bags according to claim 1, characterized in that: The finished product unloading device (14) comprises a finished product unloading station fixture (1410) for clamping the conduit (1801), and the finished product unloading station fixture (1410) is connected to a finished product unloading station descending cylinder (1408) that can move forward and backward.

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