Automatic bonding equipment for medical catheter and connector

Abstract

The invention discloses an automatic bonding device for a medical catheter and a connector, which comprises a gluing device, which is provided with a gluing hole with glue attached to the inner wall, and is used for gluing the outer peripheral wall of the front end of the catheter in an inserting manner; the butt joint device is used for adjusting the joint and the glued guide pipe to the axis coincident position and then performing opposite movement, so as to realize plug-in assembly; the discharging and drying device is used for drying the spliced joints and the guide pipes and conveying the joints and the guide pipes to the outside; the guide pipe feeding device is used for orderly conveying guide pipes to the gluing device; and the joint feeding device is used for orderly conveying the joints to the butt joint device. All automatic production of gluing, butt joint and drying operation is achieved through the gluing device, the butt joint device and the discharging and drying device, the efficient, safe and consistent bonding process between the catheter and the connector is achieved, the production technology of the medical catheter and the connector is optimized, the labor cost is reduced, and the production efficiency is improved. The requirements for rapid production and efficient supply of products are met, and effective technical support is provided for the high-standard requirement of the medical industry.

Description

Technical Field

[0001] The invention relates to the technical field of medical device processing equipment, and in particular to an automatic bonding device for medical catheters and joints. Background Art

[0002] In the medical field, medical catheters are widely used in various medical operations, including infusion, drainage, anesthesia, and monitoring. In order to ensure the safety and effectiveness of the medical process, the effective connection and sealing performance between the catheter and the connector are crucial. Improper connection may lead to leakage, infection or other complications, which may bring adverse consequences to the patient.

[0003] The connection processes of medical catheters and connectors are mainly divided into welding (such as high-frequency pressure welding, ultrasonic welding, etc.) and gluing (such as using adhesives such as cyclohexanone and tetrahydrofuran). Among them, the welding method has better connection strength and sealing, but it has higher requirements on equipment, and the connection parts may produce thermal deformation or performance changes. In comparison, the connection formed by gluing technology using adhesives such as cyclohexanone and tetrahydrofuran, although the connection strength is relatively low, is sufficient to meet the requirements of low-pressure and low-flow media in the medical field. It has the advantages of low equipment requirements, simple operation, strong applicability and small thermal impact, making the gluing process more widely used in medical products.

[0004] At present, the biggest limitation of the bonding process is that an efficient and automated bonding equipment has not yet been developed. It still mainly relies on fully manual or manually assisted semi-automatic equipment, which leads to poor product consistency, affects the safety and reliability of the connection, and makes it difficult to ensure production efficiency. Therefore, it is urgent to develop an automatic bonding equipment with a high level of automation. Summary of the invention

[0005] In order to realize full-automatic bonding of medical catheters and connectors and improve the safety, reliability and product consistency of the connection between medical catheters and connectors, the present invention provides an automatic bonding device for medical catheters and connectors.

[0006] The technical solution adopted by the present invention is as follows: an automatic bonding device for medical catheters and connectors, comprising: a gluing device, having a gluing hole with glue attached to the inner wall, for gluing the outer peripheral wall of the front end of the catheter in a plug-in manner; a docking device, for adjusting the connector and the glued catheter to a position where the axes coincide with each other and then moving them toward each other to achieve plug-in assembly; a discharging and drying device, for drying the connector and the catheter after plugging and transporting them to the outside; a catheter feeding device, for transporting the catheter to the gluing device in an orderly manner; and a connector feeding device, for transporting the connector to the docking device in an orderly manner.

[0007] Preferably, the glue coating device includes: a glue coating box, which is the glue coating operation area of ​​the catheter; a plurality of glue dispensing heads, which are arranged at equal intervals and heights in front of the glue coating box, the glue coating hole is arranged in the glue dispensing head, the glue coating hole is also provided with a baffle perpendicular to the axis line, and the inner wall of the glue coating hole is provided with an annular glue coating groove; a glue tank, which is used to store glue; a glue supply assembly, which periodically supplies glue to the glue dispensing head; a linear slide, which is used to install the glue coating box and the glue tank, and drive the glue coating box to slide back and forth in a straight line along the axis line direction of the glue coating hole; a positioning assembly, which is used to position and fix the catheter to be coated with glue.

[0008] Preferably, the glue dispensing head includes an outer tube and an inner tube that are plugged together, the outer tube has a first end wall and a first tube wall, and the inner tube has a second end wall and a second tube wall; a first hole is arranged at the center of the first end wall, and a second hole is arranged at the center of the second end wall, and the first hole and the second hole together constitute the glue coating hole; a glue inlet hole is arranged on the first tube wall, the annular cavity between the first tube wall and the second tube wall forms a glue bin, the gap between the first end wall and the second end wall forms the annular glue coating groove, and the radial incision of the second tube wall forms a glue return port, and the glue inlet hole, the glue bin, the annular glue coating groove and the glue return port are connected in sequence to form a glue inlet-glue coating-glue return channel.

[0009] Preferably, the glue supply assembly includes: a glue inlet pipe, from the glue tank to the glue dispensing head; a glue return pipe, from the glue dispensing head to the glue tank; a glue pressing piston, arranged on the glue inlet pipe; and a first drive cylinder, providing power for the glue pressing piston.

[0010] Preferably, the positioning assembly includes: a baffle having two positions, high or low, which blocks the front end of the catheter when in the high position to position the axial position of the catheter; a stopper fixed to the baffle and having a plurality of tube positioning grooves corresponding to the catheter feeding device; a plurality of pressure plates, which are movably installed above the tube positioning grooves in a one-to-one correspondence and have two positions for opening or closing the tube positioning grooves; a second drive cylinder, which drives the baffle to rise and fall; a third drive cylinder, which drives the pressure plate to move; and a positioning clamp, which clamps and fixes the catheter to be injected with glue.

[0011] Preferably, the docking device includes: a catheter clamp for clamping the catheter after glue coating; a connector positioning pin for positioning the connector by plugging it into the connector; a fourth drive cylinder for driving the catheter clamp to rise and fall to the same height as the connector positioning pin; a fifth drive cylinder and a sixth drive cylinder for respectively driving the catheter clamp and the connector positioning pin to move toward each other to achieve plug-in assembly of the catheter and the connector.

[0012] Preferably, the docking device also includes: a main frame, serving as a support and mounting platform; a main material tray, mounted on the main frame, forming a working area for plug-in assembly of the connector and the catheter; a connector plate, provided with a plurality of connector positioning grooves corresponding to the connector feeding device; a seventh drive cylinder, used to drive the connector plate to rise and fall to the same height as the connector positioning pin; an eighth drive cylinder, used to drive the connector positioning pin to move horizontally for plug-in positioning with the connector; a horizontally arranged double slide, used to respectively install the catheter clamp and the connector positioning pin; a push plate and a ninth drive cylinder, used to send the assembled connector and the catheter into the discharging and drying device.

[0013] Preferably, the discharging and drying device includes: a bracket, which is installed as an integral part with the gluing device; a conveyor belt, which is installed on the bracket, with one inlet end connected to the discharging port of the gluing device and one outlet end connected to the finished product disk; a motor, which is transmission-connected to the conveyor belt to drive the conveyor belt to move; and a heating module, which is arranged above the conveyor belt.

[0014] Preferably, the discharging and drying device also includes an oven cover, which is open at the bottom and is installed and covers the conveyor belt, and the heating module is installed on the top of the oven cover; the heating module is heated by thermal convection, and the heating module includes a fan, an electric heating tube and a cover shell arranged in sequence from top to bottom, and an air inlet is opened on the top of the oven cover corresponding to the position of the heating module.

[0015] Preferably, the catheter feeding device and the joint feeding device adopt multi-channel linear vibration feeders.

[0016] The present invention has the following beneficial effects: 1. Efficient glue coating: Through the unique design of glue feeding-glue coating-glue return channel, glue is coated on the outer peripheral wall of the front end of the catheter in a plug-in manner, which significantly improves the glue dispensing efficiency, reduces the dependence on manual operation, and increases the production speed; 2. Uniform glue coating: The setting of the annular glue coating groove ensures that the glue is evenly coated on the circumference of the catheter, avoiding the problem of uneven glue coating thickness caused by manual operation, catheter clamp; 3. Accurate docking: The catheter clamp and the connector positioning pin move toward each other to achieve accurate centering of the catheter and connector, ensuring the reliability of plug-in assembly; 4. Rapid curing: Through uniform heat distribution and timely transportation, it can effectively avoid leakage or joint falling off caused by wet glue, ensuring the sealing and safety of the connection; 5. Fully automatic operation: The gluing, docking and drying operations are fully automated through the gluing device, docking device, discharging and drying device, which reduces labor costs and meets the needs of rapid production and efficient supply of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention.

[0018] Figure 2 It is a three-dimensional schematic diagram of a glue coating device in an embodiment of the present invention.

[0019] Figure 3 It is a schematic diagram of disassembling the glue coating device in an embodiment of the present invention.

[0020] Figure 4 It is a schematic diagram of the assembly of the glue dispensing head and the glue coating box in an embodiment of the present invention.

[0021] Figure 5 It is a three-dimensional schematic diagram of a dispensing head in an embodiment of the present invention.

[0022] Figure 6 It is a left schematic diagram of a dispensing head in an embodiment of the present invention.

[0023] Figure 7 Schematic cross-sectional view of a dispensing head in an embodiment of the present invention.

[0024] Figure 8 Schematic diagram of the gluing principle of the glue dispensing head in an embodiment of the present invention.

[0025] Fig. 9 It is a three-dimensional schematic diagram of a positioning component in an embodiment of the present invention.

[0026] Fig.10 It is a three-dimensional schematic diagram of a docking device in an embodiment of the present invention.

[0027] Fig.11 It is a three-dimensional schematic diagram of the docking device from another angle in the embodiment of the present invention.

[0028] Fig.12 It is a three-dimensional schematic diagram of the discharging and drying device in an embodiment of the present invention.

[0029] Fig.13 It is a three-dimensional schematic diagram of a heating module in an embodiment of the present invention.

[0030] Gluing device Ⅰ, docking device Ⅱ, discharging and drying device Ⅲ, catheter feeding device Ⅳ, joint feeding device Ⅴ; Glue coating box 1; Glue dispensing head 2, glue application hole 201, stop bar 202, annular glue application groove 203, outer tube 204, inner tube 205, first end wall 206, first tube wall 207, second end wall 208, second tube wall 209, first hole 210, second hole 211, glue inlet hole 212, glue bin 213, glue return port 214, third hole 215, fourth hole 216, annular piston part 217, flange ring part 218; Glue box 3; Glue supply assembly 4, glue inlet pipe 401, glue return pipe 402, glue pressing piston 403, first driving cylinder 404; Linear slide 5; Positioning assembly 6, baffle 601, stopper 602, tube positioning groove 603, pressing plate 604, second drive cylinder 605, third drive cylinder 606, positioning clamp 607; Catheter clamp 7; Connector positioning pin 8; Fourth drive cylinder 9; A fifth drive cylinder 10; Sixth drive cylinder 11; Position switch 12; Main frame 13; Main material tray 14; Connector plate 15, connector positioning groove 1501; Seventh drive cylinder 16; Eighth drive cylinder 17; Double slide 18; Pushing plate 19; Ninth driving cylinder 20; Bracket 21; Conveyor belt 22; Motor 23; Heating module 24, fan 2401, electric heating pipe 2402, cover 2403; Oven cover 25, air inlet 2501; Lugs 26. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the embodiments and drawings.

[0032] 1. Whole machine In the embodiment, Figure 1 to Figure 13As shown, it is an automatic bonding device for medical catheters and connectors, including: a gluing device I, having a gluing hole 201 with glue attached to the inner wall, which is used to apply glue to the outer peripheral wall of the front end of the catheter in a plug-in manner; a docking device II, which adjusts the connector and the catheter after gluing to the position where the axes coincide and then moves towards each other to achieve plug-in assembly; a discharging and drying device III, which dries the connector and the catheter after plugging and transports them to the outside; a catheter feeding device IV, which transports the catheter to the gluing device in an orderly manner; and a connector feeding device V, which transports the connector to the docking device in an orderly manner. This embodiment realizes the full automation of gluing, docking and drying operations through the gluing device I, the docking device II, and the discharging and drying device III, realizes an efficient, safe and consistent bonding process between the catheter and the connector, optimizes the production process of medical catheters and connectors, reduces labor costs, meets the needs of rapid production and efficient supply of products, and provides effective technical support for the high standards of the medical industry.

[0033] 2. Gluing device Ⅰ In the embodiment, Figure 2~Figure 8 As shown, the glue coating device I includes: a glue coating box 1, which is the glue coating operation area of ​​the catheter; a plurality of glue dispensing heads 2, which are arranged in front of the glue coating box 1 at equal intervals and heights, a glue coating hole 201 is set in the glue dispensing head 2, and a baffle 202 perpendicular to the axis line is also provided in the glue coating hole 201, and an annular glue coating groove 203 is provided on the inner wall of the glue coating hole 201; a glue box 3, which is used to store glue; a glue supply component 4, which periodically supplies glue to the glue dispensing head 2; a linear slide 5, which is used to install the glue coating box 1 and the glue box 3, and drive the glue coating box 1 to slide back and forth in a straight line along the axis line direction of the glue coating hole 201; a positioning component 6, which is used to position and fix the catheter to be glued. The glue dispensing head 2 of the glue coating device I has an annular glue coating groove 203, which can be glued 360° from the outer periphery of the catheter, with high glue coating efficiency, and also avoids the problem of uneven glue coating thickness caused by manual operation, and improves the connection strength and sealing performance. The stopper bar 202 in the glue dispensing head 2 positions the axial position of the catheter, thereby ensuring the consistency of the glue coating position. Glue coating device I This embodiment realizes the full-automatic glue coating operation of the catheter through the mutual cooperation of various functional components, significantly improves the glue dispensing efficiency, reduces the dependence on manual operation, improves production efficiency, and reduces production costs.

[0034] In the embodiment, Figure 7 , Figure 8As shown, the glue dispensing head 2 includes an outer tube 204 and an inner tube 205 that are plugged together. The outer tube 204 has a first end wall 206 and a first tube wall 207, and the inner tube 205 has a second end wall 208 and a second tube wall 209; a first hole 210 is arranged at the center of the first end wall 206, and a second hole 211 is arranged at the center of the second end wall 208, and the first hole 210 and the second hole 211 together constitute a glue coating hole 201; a glue inlet hole 212 is arranged on the first tube wall 207, an annular cavity between the first tube wall 207 and the second tube wall 209 forms a glue bin 213, a gap between the first end wall 206 and the second end wall 208 forms an annular glue coating groove 203, and a radial cutout of the second tube wall 209 forms a glue return port 214, and the glue inlet hole 212, the glue bin 213, the annular glue coating groove 203 and the glue return port 214 are sequentially connected to form a glue inlet-glue coating-glue return channel. This embodiment uses a concentrically assembled outer tube 204 and inner tube 205 to form a double-layer sleeve structure, forming a complete glue feeding-storing-spreading-returning glue channel inside the double-layer sleeve. The double-layer sleeve form not only reduces the processing difficulty of the overall structure, but also ensures the reliability of the structure of the glue dispensing head 3 itself. At the same time, the width of the annular glue coating groove 203 is adjusted by the axial sliding of the outer tube 204 and the inner tube 205, that is, adjusting Figure 8 The distance D in the middle allows the glue application amount to be adjusted according to demand to achieve the best glue application effect and ensure the connection strength and sealing performance of the catheter.

[0035] In the embodiment, Figure 5~Figure 8 As shown, the glue return port 214 is arranged in a vertical downward direction. The glue return port 214 is arranged at a lower position, which is conducive to the return of glue, avoids the situation of glue blockage, and is conducive to keeping the glue channel smooth.

[0036] In the embodiment, Figure 4 , Figure 8 As shown, the glue return port 214 is arranged in the glue coating box 1, and the glue flows back to the glue coating box 1 through the glue return port 214, and the glue coating box 1 is connected with the glue tank 3. This structure can effectively prevent the leakage of glue and ensure that the excess glue flows back to the glue tank 3 smoothly for reuse to avoid waste.

[0037] In the embodiment, Figure 7 As shown, the outer tube 204 has a third hole 215 that expands outward relative to the first hole 210, and the inner tube 205 has a fourth hole 216 that expands outward relative to the second hole 211. The third hole 215 and the fourth hole 216 are both tapered holes, which are concentrically arranged with the first hole 210 and the second hole 211. The third hole 215 and the fourth hole 216 play a role in assisting the backflow of glue, and the third hole 215 also plays a role in assisting the insertion of the catheter. The blocking bar 202 is arranged in the fourth hole 216 to play an axial positioning role for the catheter.

[0038] In the embodiment, Figure 7As shown, the second tube wall 209 is provided with an annular piston portion 317 near the tail end, and the outer peripheral wall of the annular piston portion 317 is sealed and axially slidably matched with the inner peripheral wall of the first tube wall 207; the tail end of the second tube wall 209 is provided with a flange ring portion 318. The annular piston portion 317 and the first tube wall 207 of the outer tube 204 can ensure good sealing performance, and prevent glue leakage when the outer tube 204 and the inner tube 205 slide axially to adjust the width of the annular glue groove 203. The flange ring portion 205 provides an operating position and a fixing position for the axial sliding of the inner tube 205, which facilitates the position adjustment and fixing of the inner tube 205.

[0039] In the embodiment, Figure 3 , Figure 4 As shown, a plurality of dispensing heads 2 are arranged at equal intervals and heights in front of the glue coating box 1. This structure can dispense glue to multiple catheters simultaneously, has high production efficiency, good consistency of batch products, and is suitable for mass production.

[0040] In the embodiment, Figure 2 , Figure 3 As shown, the glue supply component 4 includes: a glue inlet pipe 401, from the glue tank 3 to the glue dispensing head 2; a glue return pipe 402, from the glue dispensing head 2 to the glue tank 3; a glue pressing piston 403, which is arranged on the glue inlet pipe 401; and a first drive cylinder 404, which provides power for the glue pressing piston 403. This embodiment adopts a pneumatic piston glue supply method, and the first drive cylinder 404 is extended and retracted to drive the glue pressing piston 403 to suck the glue, thereby realizing periodic and intermittent glue supply to the glue dispensing head 2, which has the advantages of being simple and reliable. Of course, the glue supply component 4 can also be selected in the form of a piston pump, a peristaltic pump or a pneumatic piston.

[0041] In the embodiment, Figure 2 , Fig. 9As shown, the positioning assembly 6 includes: a baffle 601, which has two positions, high or low. When the baffle 601 is in the high position, it blocks the front end of the catheter to position the axial position of the catheter; a stopper 602, which is fixed to the baffle 601 and has a plurality of tube positioning grooves 603 corresponding to the catheter feeding device IV; a plurality of pressing plates 604, which are movably installed above the tube positioning grooves 603 in a one-to-one correspondence, and have two positions to open or close the tube positioning grooves 603; a second driving cylinder 605, which drives the baffle 601 to rise and fall; a third driving cylinder 606, which drives the pressing plate 604 to move; and a positioning clamp 607, which clamps and fixes the catheter to be injected with glue. The baffle 601 can block the front of the catheter to keep the catheter consistent in the axial direction; the pressing plate 604 is to ensure that the catheter falls into the tube positioning groove 603 to avoid the phenomenon of warping. When the catheter is accurately positioned through the baffle plate 601 and the pressure plate 604, the positioning clamp 607 clamps and fixes the catheter, and the pressure plate 604 and the baffle plate 601 are driven by the third drive cylinder 606 and the second drive cylinder 605 to retreat in turn, and the next step of gluing can be carried out. The above-mentioned action of the positioning component 6 can effectively ensure that the catheter is accurately inserted into the gluing hole 201 and the gluing position is consistent.

[0042] In the embodiment, a photoelectric sensor is also provided in the tube positioning groove 603 for real-time monitoring of the position of the catheter. The photoelectric sensor determines whether the catheter has accurately entered the predetermined position in the tube positioning groove 603 by emitting and receiving light to provide feedback on the position of the catheter. When the catheter is not in place for a long time, the photoelectric sensor will trigger an alarm or send a signal to the control system to suspend the operation of the equipment. This feedback mechanism can effectively avoid subsequent operations such as gluing when the catheter is not in place, reduce material waste and the production of unqualified products, help improve the qualified rate of production and reduce unnecessary costs. In addition to improving the intelligence and automation level of the positioning component 6, the photoelectric sensor can also be combined with the control system of the equipment to record the conveying status of the catheter. These data can be used for later quality analysis and production efficiency evaluation, providing an important basis for improving the production process.

[0043] In the embodiment, Figure 1 , Figure 2 As shown, the glue box 1 and the glue box 3 are integrally mounted on a horizontal linear slide 5, and the linear slide 5 is driven by a power device such as a cylinder to slide back and forth in a straight line along the axis direction of the glue hole 201. During the glue application operation, the catheter needs to be inserted into the glue head 2. This embodiment uses a positioning clamp 607 to clamp the catheter and move the glue head 2 to achieve the insertion and extraction of the catheter. The advantage is that the movement trajectory of the catheter can be simplified, so as to simplify the logistics transfer device of the automation equipment and reduce the equipment cost.

[0044] 3. Docking Device Ⅱ In the embodiment, Figure 1 , Fig.10 , Fig.11 As shown, the docking device II includes: a catheter clamp 7 for clamping the catheter after glue coating; a joint positioning pin 8 for positioning the joint in the form of plugging into the joint; a fourth drive cylinder 9, which drives the catheter clamp 7 to rise and fall to the same height as the joint positioning pin 8; the fifth drive cylinder 10 and the sixth drive cylinder 11, respectively drive the catheter clamp 7 and the joint positioning pin 8 to move toward each other to achieve the plug-in assembly of the catheter and the joint. This embodiment realizes the accurate docking of the catheter and the joint through the arrangement of the catheter clamp 7 and the joint positioning pin 8. The joint positioning pin 8 is plugged into the joint to ensure that the axis of the joint and the catheter coincide during the docking process, avoiding the connection failure caused by inaccurate positioning. The catheter clamp 7 can firmly clamp the catheter after glue coating, reducing the displacement or falling off of the catheter due to unstable clamping during the plug-in process. The fifth drive cylinder 10 and the sixth drive cylinder 11 work together to make the plug-in action fast and smooth, effectively improving the working efficiency. The automated docking device reduces manual intervention, reduces the complexity of operation, and improves the safety and efficiency of operation.

[0045] In the embodiment, Figure 1 , Fig.10 , Fig.11 As shown, the docking device II also includes: a main frame 13, which serves as a support and installation platform; a main material tray 14, which is installed on the main frame 13 to form a working area for plugging and assembling the connector and the catheter; a connector plate 15, which is provided with a plurality of connector positioning grooves 1501 corresponding to the connector feeding device V; a seventh drive cylinder 16, which is used to drive the connector plate 15 to rise and fall to the same height as the connector positioning pin 8; an eighth drive cylinder 17, which is used to drive the connector positioning pin 8 to move horizontally and plug and position the connector; a horizontally arranged double slide 18, which is used to install the catheter clamp 7 and the connector positioning pin 8 respectively; a push plate 19 and a ninth drive cylinder 20, which are used to send the assembled connector and the catheter into the discharging and drying device III. The configuration of the main frame 13 and the main material tray 14 forms a clear plug-in assembly working area, optimizes the workflow, and improves the convenience and visibility of the operation. The connector positioning groove 1501 ensures the accuracy of the plug-in and connector positioning pin 8. The double slide 18 shares a guide rail to ensure the accurate docking of the catheter and the connector in the opposite movement.

[0046] In the embodiment, Fig.10 , Fig.11As shown, the main frame 13 is respectively provided with a position switch 12 corresponding to the double slide 18, which is used to sense the position information of the fifth drive cylinder 10 and the sixth drive cylinder 11. The position switch 12 here plays a limiting role to prevent the catheter clamp 7 and the joint positioning pin 8 from exceeding the preset position during horizontal movement, thereby preventing equipment damage and production accidents. Furthermore, the position switch 12 can be an inductive switch, which is used to sense the position information of the fifth drive cylinder 10 and the sixth drive cylinder 11, ensuring that the catheter clamp 7 and the joint positioning pin 8 are in the correct position during the plugging process, and providing accurate mechanical feedback for subsequent operations. When the position switch 12 senses that the drive cylinder has reached a predetermined position, a signal is generated to trigger the next operation step. This mechanism makes the automation process smoother, and can achieve accurate operation process control to ensure that each step of the operation is performed at the appropriate time and position. When the catheter clamp 7 or the joint positioning pin 8 does not reach the predetermined position due to a fault, the switch will issue an alarm or signal to trigger the system to shut down. In addition, the state of the position switch 12 can be used for data recording and monitoring to help operators understand the working status and performance of the equipment.

[0047] 4. Discharging and drying device Ⅲ In the embodiment, Figure 1 , Fig.12 , Fig.13 As shown, the discharging and drying device III includes: a bracket 21, which is installed as a whole with the gluing device I; a conveyor belt 22, which is installed on the bracket 21, with one end of the inlet connected to the discharging port of the gluing device I, and one end of the outlet connected to the finished product plate; a motor 23, which is connected to the conveyor belt 22 to drive the conveyor belt 22 to move; a heating module 24, which is arranged above the conveyor belt 22. In this embodiment, a drying process is added to the discharging process after the conduit and the joint are glued together, which can quickly dry the glue, shorten the drying time, avoid the long-term static problem caused by the traditional conduit drying process, and improve the production efficiency; at the same time, the gluing discharging and drying process are concentrated on one device, which reduces the occupation of production space, saves workstations and storage space, and adapts to the needs of modern production line layout. This embodiment can effectively avoid leakage of the conduit or detachment of the joint due to the undried glue, and improve the sealing, safety and reliability of the connection.

[0048] In the embodiment, Figure 1 , Fig.12 , Fig.13As shown, the discharging and drying device III also includes an oven cover 25, which is open at the bottom and installed and covered above the conveyor belt 22. The heating module 24 is installed on the top of the oven cover 25; the heating module 24 is heated by thermal convection. The heating module 24 includes a fan 2401, an electric heating pipe 2402 and a cover 2403 arranged in sequence from top to bottom. An air inlet 2501 is opened at the top of the oven cover 25 corresponding to the position of the heating module 24. The oven cover 25 forms a relatively sealed space above the conveyor belt 22, and a local high-temperature drying space is formed inside, so that the heat can be effectively concentrated, the drying process of the glue is accelerated, the energy consumption is significantly reduced, and the influence of the heating module 24 on the external environment can be weakened. The heating module 24 is heated by thermal convection. Through the synergistic effect of the fan 2401 and the electric heating pipe 2402, the fluidity of the air is enhanced, and the heat is more evenly distributed to the surface of the conduit, ensuring that the glue is dried quickly and evenly, and avoiding loose connections caused by insufficient local temperature. The heating module 24 can also be heated by thermal radiation, that is, infrared radiation lamps, which has low energy consumption and low noise, but high equipment maintenance costs.

[0049] In the embodiment, Figure 1 , Fig.12 , Fig.13 As shown, the motor 23 adopts a variable frequency adjustable speed motor, so that the speed of the conveyor belt 22 can be adjusted according to actual needs, providing flexibility and accuracy, and can effectively control the drying time of the glue to meet the process requirements of different batches of products.

[0050] In the embodiment, Figure 1 , Fig.12 , Fig.13 As shown, there are multiple heating modules 24, which are evenly arranged along the conveying direction of the conveyor belt 22. The evenly arranged multiple heating modules 24 ensure that the conduit can be fully heated when passing through any area of ​​the conveyor belt 22, which helps to improve the overall drying effect and ensure high-quality product delivery. In the embodiment, Figure 1 , Fig.12 , Fig.13 As shown, a support ear 26 is provided at one end of the bracket 21 close to the docking device II, and a mounting slot is provided on the support ear 26, that is, the discharging and drying device III and the docking device II are fixed as one. This structure enhances the stability and adjustability of the bracket 21, ensures the accurate alignment and firmness of the equipment during the gluing and drying process, reduces equipment vibration, avoids the situation of the catheter falling, and improves the safety and reliability of the equipment.

[0051] 5. Catheter feeding device IV and joint feeding device V In the embodiment, Figure 1As shown in the figure, the catheter feeding device IV and the joint feeding device V use multi-channel linear vibration feeders. The multi-channel parallel linear vibration feeders can significantly improve the feeding efficiency and automation level of catheters and joints, provide efficient and orderly material transportation for the entire production process, optimize the production process, and reduce bottlenecks in the feeding process.

[0052] 6. Operation steps of the whole machine The device of this embodiment is used to perform full-automatic gluing of the catheter and the joint, and its operating principle and specific steps are as follows.

[0053] Step 1. Preparation: Check that all devices of the equipment (gluing device I, docking device II, discharging and drying device III, duct feeding device IV, joint feeding device V) are working properly; Check whether there is enough glue in the glue box 3, and adjust the parameters of the glue coating device I to adapt to the corresponding model of the catheter and connector.

[0054] Step 2. Raw material transportation: Start the equipment, and the tube feeding device IV transports the tubes to the glue coating device I (to the tube positioning groove 603) in an orderly manner; Synchronously, the joint feeding device V transports the joints to the docking device II (to the joint positioning groove 1501) in an orderly manner.

[0055] Step 3. Gluing process: The glue coating device I starts to operate. After the positioning component 6 completes the positioning and fixing of the catheter, the glue coating box 1 moves toward the catheter to achieve the plugging of the glue coating hole 201 and the catheter. The glue in the glue box 3 is supplied to the glue dispensing head 2 through the glue supply component 4. The glue dispensing head 2 applies glue to the outer peripheral wall of the front end of the catheter through the annular glue coating groove 203. After the glue coating is completed, the glue coating box 1 retreats and the catheter is removed from the glue coating hole 201 .

[0056] Step 4. Position adjustment and docking: The joint positioning pin 8 is inserted into the raised joint, and the catheter clamp 7 clamps the glue-coated catheter and rises to the same height as the joint; After the axis of the catheter and the connector are aligned, the catheter clamp 7 and the connector positioning needle 8 are driven to move toward each other synchronously to complete the connection; The connector positioning needle 8 retreats, the catheter clamp 7 is released, and the connected catheter and connector fall into the main material tray 14, and are sent to the discharging and drying device III by the push plate 19.

[0057] Step 5. Drying and curing: The connected joint and the conduit enter the drying area within the range of the oven cover 25 along the conveyor belt 22, and the heating module 24 heats and solidifies the glue.

[0058] Step 6. Discharging: After drying, the conveyor belt 22 delivers the bonded conduits and connectors into finished product trays for subsequent quality inspection and packaging.

[0059] Step 7. Equipment maintenance: After the operation is completed, check the equipment status, shut down the equipment, and clean the parts that are easily contaminated, such as the glue coating device I; Regularly maintain and calibrate equipment to ensure its efficiency and accuracy during next production.

[0060] The above steps are completed through automated bonding equipment, which is fully automatic and realizes an efficient, safe and consistent bonding process, which significantly improves the quality of the product and improves production efficiency.

[0061] Obviously, the above embodiments of the present invention are only examples for explaining the present invention, and are not intended to limit the implementation methods of the present invention. Other obvious changes or modifications derived from the essence of the present invention still fall within the protection scope of the present invention.

Claims

1. An automatic bonding device for medical catheters and connectors, characterized in that: include: The glue coating device (I) has a glue coating hole (201) with glue on the inner wall, and is used to coat the outer peripheral wall of the front end of the catheter with glue in a plug-in manner; The docking device (II) adjusts the joint and the glue-coated conduit to a position where the axes coincide with each other and then moves them toward each other to achieve plug-in assembly; A discharging and drying device (III) dries the connector and the conduit after the plugging is completed and transports them to the outside; A catheter feeding device (IV) for orderly conveying the catheters to the glue coating device; The joint feeding device (V) transports the joints to the docking device in an orderly manner.

2. The automatic bonding device for medical catheters and connectors according to claim 1, characterized in that: The glue coating device (I) comprises: The glue coating box (1) is a glue coating operation area of ​​the catheter; A plurality of glue dispensing heads (2) are arranged at equal intervals and heights in front of the glue coating box (1); the glue coating hole (201) is provided in the glue dispensing head (2); a retaining bar (202) perpendicular to the axis is provided in the glue coating hole (201); and an annular glue coating groove (203) is provided on the inner wall of the glue coating hole (201); A glue box (3), used for storing glue; A glue supply component (4) for periodically supplying glue to the glue dispensing head (2); A linear slide (5) is used to mount the glue coating box (1) and the glue box (3) and drive the glue coating box (1) to slide back and forth in a straight line along the axis direction of the glue coating hole (201); The positioning component (6) is used to position and fix the catheter to be coated with glue.

3. The automatic bonding device for medical catheters and connectors according to claim 2, characterized in that: The dispensing head (2) comprises an outer tube (204) and an inner tube (205) which are plugged into each other, the outer tube (204) having a first end wall (206) and a first tube wall (207), and the inner tube (205) having a second end wall (208) and a second tube wall (209); A first hole (210) is provided at the center of the first end wall (206), and a second hole (211) is provided at the center of the second end wall (208); the first hole (210) and the second hole (211) together constitute the glue coating hole (201); The first tube wall (207) is provided with a glue inlet hole (212), the annular cavity between the first tube wall (207) and the second tube wall (209) forms a glue bin (213), the gap between the first end wall (206) and the second end wall (208) forms the annular glue coating groove (203), and the radial cutout of the second tube wall (209) forms a glue return port (214), and the glue inlet hole (212), the glue bin (213), the annular glue coating groove (203) and the glue return port (214) are connected in sequence to form a glue inlet-glue coating-glue return channel.

4. The automatic bonding device for medical catheters and connectors according to claim 2, characterized in that: The glue supply component (4) comprises: A glue inlet pipe (401) extending from the glue tank (3) to the glue dispensing head (2); A glue return hose (402), extending from the glue dispensing head (2) to the glue tank (3); A glue pressing piston (403) is arranged on the glue inlet pipe (401); The first driving cylinder (404) provides power for the glue pressing piston (403).

5. The automatic bonding device for medical catheters and connectors according to claim 2, characterized in that: The positioning component (6) comprises: The baffle (601) has two positions, high or low, and when in the high position, blocks the front end of the conduit to locate the axial position of the conduit; A stopper (602) is fixed to the baffle (601) and has a plurality of tube positioning grooves (603) corresponding to the conduit feeding device (IV); A plurality of pressing plates (604) are movably mounted above the tube positioning groove (603) in a one-to-one correspondence, and have two positions for opening or closing the tube positioning groove (603); A second driving cylinder (605) drives the baffle (601) to move up and down; A third driving cylinder (606) drives the pressing plate (604) to move; The positioning clamp (607) clamps and fixes the catheter to be injected with glue.

6. The automatic bonding device for medical catheters and connectors according to claim 1, characterized in that: The docking device (II) comprises: A catheter clamp (7) used to clamp the catheter after being coated with glue; A connector positioning needle (8) for positioning the connector by being inserted into the connector; A fourth drive cylinder (9) drives the catheter clamp (7) to move up and down to the same height as the connector positioning needle (8); The fifth drive cylinder (10) and the sixth drive cylinder (11) respectively drive the catheter clamp (7) and the connector positioning needle (8) to move towards each other, thereby achieving plug-in assembly of the catheter and the connector.

7. The automatic bonding device for medical catheters and connectors according to claim 6, characterized in that: The docking device (II) further comprises: A main frame (13) serving as a support and mounting platform; A main material tray (14) is mounted on the main frame (13) to form a working area for plugging and assembling the joint and the conduit; A joint plate (15) provided with a plurality of joint positioning grooves (1501) corresponding to the joint feeding device (V); A seventh driving cylinder (16) is used to drive the connector plate (15) to move up and down to a position at the same height as the connector positioning pin (8); an eighth driving cylinder (17), used for driving the connector positioning needle (8) to move horizontally and to be plugged into and positioned with the connector; A double slide (18) arranged horizontally, used to respectively mount the catheter clamp (7) and the connector positioning needle (8); The push plate (19) and the ninth drive cylinder (20) are used to send the assembled joint and the conduit into the discharging and drying device (III).

8. The automatic bonding device for medical catheters and connectors according to claim 1, characterized in that: The discharging and drying device (III) comprises: A bracket (21) is integrally mounted with the glue coating device (I); A conveyor belt (22) is mounted on the support (21), with one inlet end connected to the discharge port of the glue coating device (I) and one outlet end connected to the finished product tray; A motor (23) is connected to the conveyor belt (22) to drive the conveyor belt (22) to move; A heating module (24) is arranged above the conveyor belt (22).

9. The automatic bonding device for medical catheters and connectors according to claim 8, characterized in that: The discharging and drying device (III) further comprises an oven cover (25), the bottom of the oven cover (25) being open and being installed above and covering the conveyor belt (22), and the heating module (24) being installed on the top of the oven cover (25); The heating module (24) performs heating by means of thermal convection, and the heating module (24) comprises a fan (2401), an electric heating pipe (2402), and a cover shell (2403) which are arranged in sequence from top to bottom, and an air inlet (2501) is provided at the top of the oven cover (25) at a position corresponding to the heating module (24).

10. The automatic bonding device for medical catheters and connectors according to claim 1, characterized in that: The catheter feeding device (IV) and the joint feeding device (V) adopt multi-channel linear vibration feeders.

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