An automated production line for producing hollow fiber membrane modules

Abstract

The present invention relates to the field of water treatment technology, and in particular to and discloses an automated production line for producing hollow fiber membrane components, comprising a main control system, a frame, and a circulating transmission system, which are sequentially divided into automatic assembly stations, potting stations, constant temperature curing stations, and robot unloading stations along the frame. The main control system is respectively connected to the circulating transmission system, the automatic assembly device, the automatic potting device, the constant temperature penetration curing device, and the automatic unloading device. The circulating transmission system on the frame transports the membrane components through each station in sequence. The automated production line for producing hollow fiber membrane components of the present invention automatically completes the assembly of the membrane and the water collection pipe, automatically pours glue, can reasonably adjust the temperature and duration of the curing zone according to demand, and automatically unloads materials, which greatly reduces the number of production operators, improves production efficiency, and reduces the product damage rate. It has the advantages of high production efficiency, controllable key process technology, good production stability, and short product preparation cycle.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and in particular to an automated production line for manufacturing hollow fiber membrane components. Background Art

[0002] The hollow fiber curtain membrane bioreactor is a novel water treatment technology that combines a hollow fiber membrane separation unit with a biological treatment unit. By replacing secondary sedimentation tanks with hollow fiber curtain membrane modules and maintaining a high activated sludge concentration within the biochemical reactor, the bioreactor reduces wastewater treatment facility footprint and sludge production by keeping the sludge load low. Compared to traditional biochemical water treatment technologies, it offers high treatment efficiency, excellent effluent quality, compact equipment, a small footprint, easy automation, and simplified operation and management. It is now widely used for wastewater treatment in the municipal, power, steel, petrochemical, textile, and food industries.

[0003] After the hollow fiber membrane is made through the spinneret, a large number of hollow fiber membrane ends need to be fixed in the water collection pipe and potted into components so that the outer surface of the membrane is completely sealed relative to the outside of the water collection pipe. At present, the spinning production process can achieve continuous production, but the subsequent potting process requires a lot of manpower. Because the product is a flexible material, the length is generally greater than 2 meters, and the weight is heavy, it usually requires two production personnel to cooperate to complete each process. In order for the glue to completely seal all the membrane filaments, the glue is required to have a long operating time to ensure that the glue has enough time to penetrate between the membrane filaments, otherwise through holes will be formed between the membrane filaments. The time required for the glue with a long operating time to cure is also longer. Therefore, the production time required to complete the potting of a single product exceeds 50 hours.

[0004] The existing method for preparing hollow fiber curtain membrane modules primarily involves straightening the membrane and clamping it in place with a jig. The assembly is then manually assembled with a water collection pipe to complete the positioning. A certain amount of glue is then drawn from a fixed-position glue dispenser into a glue storage tank. The storage tank is then moved to each jig. The glue is then slowly injected into the water collection pipe using a drip or milking bottle method. After the glue has naturally solidified, the membrane is removed from the jig. This results in a long preparation cycle, as mass production requires a large number of jigs, which takes up a large amount of floor space, makes constant temperature control difficult, and consumes a lot of energy. Furthermore, this glue injection method is time-consuming, uncontrollable, and difficult to guarantee quality. Furthermore, the piping used for glue injection is a consumable part, generating a large amount of glue waste.

[0005] The existing hollow fiber membrane preparation method has the following disadvantages:

[0006] 1. The production process requires a lot of manpower, which results in high labor costs, high labor intensity, difficult operation, and easy scratches on the product;

[0007] 2. The product preparation cycle is long, occupies a large area, is difficult to control constant temperature, and has high energy consumption;

[0008] 3. The key process technology is uncontrollable, production stability is poor, and quality cannot be guaranteed. Summary of the Invention

[0009] In response to the defects of the existing technology, the present invention provides an automated production line for manufacturing hollow fiber membrane components with a high degree of automation, controllable glue filling speed, low-temperature penetration, controllable and adjustable high-temperature curing time and temperature, glue that can fully penetrate into the membrane filament without through holes, fast curing time, and greatly improved production efficiency.

[0010] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0011] An automated production line for manufacturing hollow fiber membrane modules, comprising a main control system, a frame, and a circulating conveying system. The system is sequentially divided along the frame into automatic assembly stations, potting stations, constant temperature curing stations, and robot unloading stations. The system also sequentially comprises:

[0012] An automatic assembly device is located at the automatic assembly station and includes a membrane assembly transfer rack. The automatic assembly device is used to automatically assemble the diaphragm and the water collecting box to the membrane assembly transfer rack, and the free end of the diaphragm is assembled into the water collecting box; the membrane assembly transfer rack can vertically hang one or two diaphragms to encapsulate their lower free ends, or can hang the two free ends of a diaphragm in a U-shape to encapsulate them at the same time.

[0013] An automatic potting device, located at the potting station, is used to pot the free ends of the membranes on the rotating racks of the membrane modules that have been delivered to their proper locations;

[0014] A constant temperature infiltration and curing device, located at the constant temperature curing station, is used to perform low-temperature infiltration and high-temperature curing on the free end of the diaphragm after the glue is poured, with adjustable and controllable temperature and duration;

[0015] An automatic unloading device, located at the robot unloading station, for disassembling and collecting diaphragms;

[0016] The main control system is respectively connected to the circulating conveying system, automatic assembly device, automatic potting device, constant temperature penetration curing device and automatic unloading device. The circulating conveying system on the rack conveys the transfer rack of the membrane component through each station in turn.

[0017] Preferably, the automatic potting device sequentially includes a feeding device for two components, a mixer for mixing the two-component glue, and a glue dispensing device for dispensing the mixed glue into multiple paths. The glue dispensing device includes glue dispensing blocks connected in sequence, multiple connecting pipes, and multiple glue outlets. The glue dispensing block is provided with a flow regulating plunger, and the glue dispensing block is also provided with a pushing device for pushing it into a water collecting box. A pipeline pressure detection device is also provided between the feeding device and the mixer, and a pipeline cleaning device is provided on the mixer. The main control system controls the automatic potting device, and realizes fixed-point online glue pouring when the production jig is automatically circulated. There is no need for manual glue splicing and pouring, which improves the speed and consistency of glue pouring, does not generate solid waste, and is also convenient for adjusting the ratio of the two-component glue.

[0018] Preferably, the constant-temperature infiltration and curing device is divided into a low-temperature infiltration zone and a high-temperature curing zone. The time and temperature of the low-temperature infiltration zone are set based on the requirements for full infiltration, while the time and temperature of the high-temperature curing zone are set based on the fastest curing required after full infiltration. Because the jig passes through the high and low temperature chambers on the circulating conveyor system, the glue fully penetrates in the low-temperature environment. After penetration is completed, the high temperature is used to accelerate curing, resolving the contradiction between glue permeability and curing time.

[0019] Preferably, the automatic unloading device includes an automatic disassembly and collection device, a membrane component collection rack, and a partition automatic assembly device. The automatic disassembly and collection device is used for automatically disassembling the clamp and disassembling the membrane from the membrane component transfer rack and collecting and storing it in the membrane component collection rack. The two layers of membrane placed horizontally in the membrane component collection rack are separated by a partition. The partition automatic assembly device includes an assembly rack, the assembly rack is provided with a transverse slide rail and a longitudinal lifting rack, the front end of the longitudinal lifting rack is provided with a partition suction cup, and the assembly rack is also provided with a longitudinal lifting motor and a transverse movement motor to control the longitudinal lifting and transverse movement of the longitudinal lifting rack. The automatic unloading device completes the automatic unloading and stacking of the potted membrane by the two robots in the robot unloading station, which greatly reduces the number of production operators and improves production efficiency. The protective partition is installed between the membranes through the partition automatic assembly device to protect the product from damage during subsequent transportation.

[0020] Preferably, the circulating conveying system includes multiple conveyor chains, adjacent conveyor chains have a height difference, and a reversing device is provided at the starting end or the end end of each conveyor chain. A blocking cylinder and a positioning lifting device are provided at each station of the conveyor chain. The positioning lifting device includes a transfer frame positioning plate, a lifting cylinder is provided in the center below the transfer frame positioning plate, at least one positioning pin is provided on the upper surface of the transfer frame positioning plate, and the positioning pin cooperates with the pin hole opened on the bottom plate of the membrane assembly transfer frame for positioning. Several lifting guide columns are provided below the transfer frame positioning plate, and the positioning lifting device is provided below the conveyor chain before the blocking cylinder. The conveyor chains change the direction of transmission, and the conveyor chains are not arranged in a straight line, which can save space in the automated production line. The setting of the reversing device allows the membrane module transfer frame to move automatically between the conveyor chains. When the rear conveyor chain is higher than the front conveyor chain, the reversing device is set at the end of the front conveyor chain. When the membrane module transfer frame moves above the reversing device, the reversing device raises the transfer frame to the same level as the lower conveyor chain. The conveyor belt in the reversing device moves along the transmission direction of the lower conveyor chain and drives the transfer frame to the lower conveyor chain. When the rear conveyor chain is lower than the front conveyor chain, the reversing device is at the front of the rear conveyor chain. After the transfer frame moves into the raised reversing device, the reversing device descends and the transfer frame achieves reversal.

[0021] A blocking cylinder and a positioning lifting device are provided at each station of the conveyor chain. Each blocking cylinder is in normal working condition. When the membrane component transfer rack to be operated is transported to the working station, it is blocked by the blocking cylinder and stops being transported forward. At the same time, the positioning lifting device is raised to lift the membrane component transfer rack and separate it from the conveyor chain. The positioning pins provided on the upper surface of the transfer rack positioning plate cooperate with the pin holes opened on the bottom plate of the membrane component transfer rack for positioning, ensuring the position and stability of each membrane component transfer rack in each station.

[0022] Preferably, the circulating conveying system is provided with a buffer zone before each workstation, and multiple workstations can be set up in parallel according to the progress requirements, thereby solving the problem of inconsistent time required for each production stage and improving processing efficiency.

[0023] Preferably, the membrane assembly rotating frame includes a support frame, a vertical support rod is fixedly connected to each of the left and right sides of the support frame, at least one horizontal support cross bar is connected between the support rods, two pairs of diaphragm clamps are provided on each side of the support frame, the two pairs of diaphragm clamps are respectively distributed on the front and rear sides of the support rods, a water collecting pipe positioning frame is provided on the inner side of the support frame, and two pairs of front and rear water collecting box clamps are respectively provided on the left and right sides of the water collecting pipe positioning frame, the water collecting box clamps are located below the diaphragm clamp clamps, each pair of diaphragm clamps and water collecting box clamps has at least one clamping block that can elastically slide forward and backward, the hollow fiber membrane diaphragm is supported in a U shape on the support cross bar, and the two free ends are respectively fixed by diaphragm clamps, the two diaphragm clamps are respectively clamped in the front and rear diaphragm clamp clamps, and the two water collecting boxes are respectively clamped in the front and rear water collecting box clamps. The product is bent into a U shape by the membrane assembly rotating frame, and double-head simultaneous potting is achieved, which greatly improves the production speed.

[0024] Preferably, the support frame is also fixedly connected to an inner guide block, which is located on the inner side below the clamping part of the diaphragm clamp. The automatic assembly device also includes an outer guide block, which is pushed by a pushing cylinder and cooperates with the inner guide block to guide the membrane wire fixed in the diaphragm clamp into the water collecting box.

[0025] Preferably, the system further includes a base plate, to which the support frame and the water collecting pipe positioning frame are fixed, and the base plate is provided with at least one pin hole for positioning. The base plate facilitates support and movement, and can be made of wear-resistant plate. The pin hole is suitable for cooperating with the support body for positioning on an automated production line.

[0026] Preferably, the upper surface of the support crossbar is an arc surface and is inlaid with a soft elastic body, the support crossbar is detachably connected to the support rod, and the height of the support crossbar is adjustable, which has a protective effect on the membrane filament and is suitable for membrane filaments of different lengths.

[0027] Preferably, the clamping block of the diaphragm clamp and the water collection box clamp near the support rod is an inner clamping block. The inner clamping block is fixed, and the outer clamping block has a guide chamfer on the side closest to the inner clamping block. The outer clamping block slides elastically, making it more suitable for robot operation. The guide chamfer facilitates the outer clamping block to spring open and the diaphragm clamp to enter the diaphragm clamp clamp, making it more suitable for automated production lines.

[0028] Preferably, the inner side of the diaphragm clamp has a soft elastic body, which can restrain thousands of hollow fiber membrane filaments without damage. The two ends of the diaphragm extend 10 to 400 mm from the diaphragm clamp respectively. The diaphragm can move with the diaphragm clamp without relative displacement.

[0029] Preferably, membrane clamp baffles are provided on the left and right sides of the support frame respectively, and the membrane clamp baffles and membrane wire baffles limit the displacement of the membrane wire in the left and right directions, thereby ensuring that the membrane wire enters the water collecting box in the left and right directions.

[0030] Preferably, the automatic assembly device includes two robots, a diaphragm feeding station, and two water collecting box feeding stations. The membrane component transfer rack is located at the automatic assembly station. The main control system controls the robot to assemble the water collecting box into the water collecting box clamp from the preset position of the water collecting box feeding station, remove the diaphragm from the preset position of the diaphragm feeding station and assemble it in a U shape to the supporting cross bar, and its free end fixed by the diaphragm clamp is inserted into the water collecting box.

[0031] Preferably, the film feeding station includes an incoming conveyor chain, an outgoing conveyor chain, two elevators, and several feed trays. The incoming and outgoing conveyor chains are arranged on the upper and lower layers, and both ends are connected to the two elevators. The feed trays are placed on the incoming and outgoing conveyor chains for cyclic conveying. At least one film lies flat on the feed tray, and a set of film clamps are set at both ends along the length of the film. Each film clamp is provided with at least one pair of clamp fixings at both ends. Clamp fixings in different positions are used to fix films of different lengths. Several films are placed on the feed trays simultaneously and transported by the incoming conveyor chain. After being picked up and assembled by the robot, the empty feed trays enter the elevators and are returned via the outgoing conveyor chain for recycling.

[0032] Preferably, the automatic assembly device also includes a supporting liquid injection unit and a laser marking device, both of which are connected to the main control system. The main control system controls the supporting liquid injection unit to inject the supporting liquid into the water collecting box according to a preset program, and the main control system controls the laser marking device to mark the marking part of the water collecting box in place.

[0033] Preferably, the support liquid injection device includes a discharge reweighing device, which includes a water collecting pipe support block supported below the water collecting box, a metering scale located below the water collecting pipe support block, and a water collecting pipe lifting cylinder located below the metering scale. The weight of the support liquid injected is controlled by the discharge reweighing device. The water collecting pipe lifting cylinder lifts the water collecting pipe so that the water collecting pipe is separated from the conveyor chain and is fully stressed on the discharge reweighing device. At this time, the weight of the water collecting pipe can be weighed, and the weight can be used to determine whether the water collecting pipe is correct. When the weight of the water collecting pipe meets the requirements, the support liquid is injected. After the support liquid injection is completed, the total weight of the water collecting pipe and the support liquid is obtained to determine whether it meets the requirements, thereby achieving discharge reweighing and ensuring the accuracy of the support liquid.

[0034] The present invention provides an automated production line for producing hollow fiber membrane components, which automatically completes the assembly of membrane sheets and water collection pipes, automatically pours glue, automatically adjusts and controls the temperature and duration of the curing zone, and automatically unloads materials, thereby greatly reducing the number of production operators, improving production efficiency, and reducing product damage rate. It has the advantages of high production efficiency, controllable key process technology, good production stability, and a short product preparation cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1The figure is a schematic structural diagram of an automated production line for manufacturing hollow fiber membrane modules according to an embodiment of the present invention.

[0036] Figure 2 Schematic diagram of the structure of the automatic filling device according to an embodiment of the present invention.

[0037] Figure 3 It is a structural schematic diagram of the automatic assembly device of the partition according to an embodiment of the present invention.

[0038] Figure 4 This is a schematic structural diagram of a membrane assembly collection rack according to an embodiment of the present invention.

[0039] Figure 5 It is a structural schematic diagram of the movement and steering of adjacent conveyor chains according to an embodiment of the present invention.

[0040] Figure 6 Schematic diagram of the structure of the rotating frame in the membrane module of an embodiment of the present invention.

[0041] Figure 7 This is a schematic diagram of the assembly of the side of the rotating frame in the membrane module of an embodiment of the present invention.

[0042] Figure 8 This is a schematic diagram of the structure of the membrane module after the rotating frame is assembled in an embodiment of the present invention.

[0043] Figure 9 This is a schematic structural diagram of the diaphragm feeding station according to an embodiment of the present invention.

[0044] Figure 10 This is a schematic structural diagram of a feed tray according to an embodiment of the present invention.

[0045] Figure 11 A schematic structural diagram of a discharging reweighing device according to an embodiment of the present invention.

[0046] Figure: 1. Base plate; 2. Support frame; 3. Support rod; 4. Support crossbar; 5. Diaphragm clamp holder; 6. Water collection pipe positioning frame; 7. Water collection box holder; 8. Inner guide block; 9. Outer guide block; 10. Diaphragm; 12. Diaphragm clamp baffle; 13. Water collection box; 14. Push cylinder; 15. Main control system; 16. Robot; 17. Diaphragm feeding station; 18. Water collection box feeding station; 20. Incoming conveyor chain; 21. Outgoing conveyor chain; 22. Elevator; 23. Feed tray; 24. Diaphragm clamp; 25. Clamp fixings. 27. Support liquid injection device; 28. Laser marking device; 29. Rack; 30. Circulation conveyor system; 31. Automatic assembly station; 32. Potting station; 33. Constant temperature curing station; 34. Robot unloading station; 35. Automatic assembly device; 36. Membrane module transfer rack; 37. Automatic potting device; 38. Constant temperature permeation curing device; 39. Automatic unloading device; 40. Feeding device; 41. Mixer; 42. Glue dispensing block; 43. Connecting pipe; 44. Glue dispensing head; 45. Flow regulating plunger; 46. Pushing device; 47. Pipeline pressure detection device; 48. Pipeline cleaning device; 49. Automatic disassembly and collection device; 50. Membrane module collection rack; 51. Partition automatic assembly device; 52. Partition; 53. Assembly rack; 54. Horizontal slide rail; 55. Longitudinal lifting rack; 56. Partition suction cup; 57. Longitudinal lifting motor; 58. Horizontal moving motor; 59. Conveyor chain; 60. Reversing device; 61. Blocking cylinder; 62. Positioning lifting device; 63. Transfer rack positioning plate; 64. Lifting cylinder; 65. Positioning pin; 66. Pin hole; 67. Lifting guide column; 68. Discharge reweighing device; 69. Water collecting pipe support block; 70. Measuring scale; 71. Water collecting pipe lifting cylinder; 72. Diaphragm fixing rod. DETAILED DESCRIPTION

[0047] The present invention will be further described below with reference to Figures 1-11 and specific implementation methods.

[0048] An automated production line for producing hollow fiber membrane components, as shown in the attached Figure 1 As shown, it includes a main control system 15, a frame 29, and a circulating conveying system 30. Along the frame 29, it is divided into an automatic assembly station 31, a potting station 32, a constant temperature curing station 33, and a robot unloading station 34. It also includes:

[0049] An automatic assembly device 35 is located at the automatic assembly station 31 and includes a membrane assembly rotating rack 36. The automatic assembly device 35 is used to automatically assemble the membrane 10 and the water collecting box 13 to the membrane assembly rotating rack 36, and the free end of the membrane 10 is assembled into the water collecting box 13;

[0050] An automatic potting device 37 is located at the potting station 32 and is used to pot the free ends of the membrane sheets 10 on the rotating rack 36 of the membrane assembly that has been delivered to the position;

[0051] A constant temperature infiltration curing device 38 is located at the constant temperature curing station 33 and is used to perform low temperature infiltration and high temperature curing on the free end of the diaphragm 10 after the glue is poured, with adjustable and controllable temperature and duration;

[0052] An automatic unloading device 39, located at the robot unloading station 34, for disassembling and collecting the diaphragm 10;

[0053] The main control system 15 is respectively connected to the circulating conveying system 30, the automatic assembly device 35, the automatic potting device 37, the constant temperature penetration curing device 38 and the automatic unloading device 39. The circulating conveying system 30 on the frame 29 conveys the membrane assembly transfer rack 36 through each station in sequence.

[0054] As attached Figure 2 As shown, the automatic filling device 37 includes, in sequence, a feeding device 40 of two components, a mixer 41 for mixing the two-component glue, and a glue dispensing device for dispensing the mixed glue into multiple paths. The glue dispensing device includes glue dispensing blocks 42 connected in sequence, multiple connecting pipes 43, and multiple glue outlet heads 44. A flow regulating plunger 45 is provided in the glue dispensing block 42. A pushing device 46 for pushing the glue dispensing block into the water collecting box 13 is also provided on the glue dispensing block 42. A pipeline pressure detection device 47 is also provided between the feeding device 40 and the mixer 41, and a pipeline cleaning device 48 is provided on the mixer 41.

[0055] The constant-temperature infiltration and curing device 38 is divided into a low-temperature infiltration zone and a high-temperature curing zone. The time and temperature of the low-temperature infiltration zone are set based on the requirements for full infiltration, while the time and temperature of the high-temperature curing zone are set based on the requirements for the fastest curing after full infiltration. The first low-temperature infiltration zone is set at 20°C, and the device remains in this zone for 2 hours. The second high-temperature curing zone is set at 35°C, and the device remains in this zone for 1.5 hours. After the second layer of glue is injected, the device enters the third curing zone, which is set at 28°C and remains in this zone for 3 hours.

[0056] The automatic unloading device 39 includes an automatic disassembly and collection device 49, a membrane assembly collection rack 50, and a partition automatic assembly device 51. The automatic disassembly and collection device 49 is used to automatically disassemble the clamp and disassemble the membrane 10 from the membrane assembly rotating rack 36 and collect and store it in the membrane assembly collection rack 50. The two horizontally placed membrane sheets 10 in the membrane assembly collection rack 50 are separated by a partition 52, as shown in the attached figure. Figure 4 As shown, the membrane assembly collection rack 50 is provided with a plurality of membrane fixing rods 72 distributed in parallel in the longitudinal direction, and the membrane fixing rods 72 constrain the membrane 10 placed in the transverse direction. Figure 3As shown, the partition automatic assembly device 51 includes an assembly frame 53, which is provided with a horizontal slide rail 54 and a longitudinal lifting frame 55. A partition suction cup 56 is provided at the front end of the longitudinal lifting frame 55. The assembly frame 53 is also provided with a longitudinal lifting motor 57 and a lateral movement motor 58 to control the longitudinal lifting and lateral movement of the longitudinal lifting frame 55.

[0057] As attached Figure 5 As shown, the circulating conveying system 30 includes multiple conveyor chains 59, and there is a height difference between adjacent conveyor chains 59. If the height of the latter conveyor chain 59 is lower than that of the previous conveyor chain 59, a reversing device 60 is set at the starting end of the latter conveyor chain 59. Each station of the conveyor chain 59 is provided with a blocking cylinder 61 and a positioning lifting device 62. The positioning lifting device 62 includes a transfer frame positioning plate 63, and a lifting cylinder 64 is set in the center below the transfer frame positioning plate 63. At least one positioning pin 65 is set on the upper surface of the transfer frame positioning plate 63. The positioning pin 65 cooperates with the pin hole 66 opened on the bottom plate 1 of the membrane assembly transfer frame 36 for positioning. Several lifting guide columns 67 are set below the transfer frame positioning plate 63, and the positioning lifting device 62 is set below the conveyor chain 59 before the blocking cylinder 61.

[0058] The circulating conveying system 30 is provided with a buffer area before each workstation, and multiple workstations can be provided in parallel according to the progress requirements.

[0059] As attached Figure 6 As shown, the rotating frame 36 in the membrane assembly includes a support frame 2, a vertical support rod 3 is fixedly connected to each of the left and right sides of the support frame 2, two horizontal support cross bars 4 are connected between the support rods 3, two pairs of diaphragm clamps 5 are arranged on the left and right sides of the support frame 2, and the two pairs of diaphragm clamps 5 are respectively distributed on the front and back sides of the support rod 3, a water collecting pipe positioning frame 6 is arranged on the inner side of the support frame 2, and two pairs of front and back water collecting box clamps 7 are respectively arranged on the left and right sides of the water collecting pipe positioning frame 6, and the water collecting box clamps 7 are located about 20 cm below the diaphragm clamp clamps 5, and the clamping blocks of each pair of diaphragm clamps 5 and the water collecting box clamps 7 close to the support rod 3 are inner clamping blocks, which are fixed and the outer clamping blocks can slide elastically back and forth, and a guide chamfer is provided on the upper side of the outer clamping block close to the inner clamping block.

[0060] As attached Figure 7 、 8 As shown, the two free ends of the hollow fiber membrane diaphragm 10 are first clamped by the diaphragm clamp 24, and the two ends extend out of the diaphragm clamp 24 by about 200 mm, and the diaphragm 10 is supported in a U shape on the supporting cross bar 4. The two diaphragm clamps 24 are respectively clamped in the front and rear diaphragm clamp clamps 5, and the two water collecting boxes 13 are respectively clamped in the front and rear water collecting box clamps 7. The support frame 2 is also fixedly connected to the inner guide block 8, which is located on the inner side below the diaphragm clamp clamp 5. The outer guide block 9 is pushed by the pushing cylinder 14 and cooperates with the inner guide block 8 to guide the end of the membrane wire into the water collecting box.

[0061] It also includes a base plate 1, the support frame 2 and the water collecting pipe positioning frame 6 are fixed on the base plate 1, and two pin holes 66 for positioning are opened on the base plate. The pin holes 66 are through holes with metal cylindrical sleeves embedded inside.

[0062] The upper surface of the support cross bar 4 is an arc surface and is inlaid with a soft elastic body. The support cross bar 4 and the support rod 3 are detachably connected, and the height of the support cross bar 4 is adjustable.

[0063] The inner surface of the diaphragm clamp 24 is provided with a soft elastic body.

[0064] Diaphragm clamp baffles 12 are also provided on the left and right sides of the support frame 2 , respectively, and the diaphragm clamp baffles 12 limit the displacement of the diaphragm clamp in the left and right directions.

[0065] As attached Figure 1 As shown, the automatic assembly device 35 includes two robots 16, a diaphragm feeding station 17, and two water collecting box feeding stations 18. The membrane assembly transfer rack 36 is located at the automatic assembly station 31. The main control system 15 controls the robot 16 to assemble the water collecting box 13 into the water collecting box clamp 7 from the preset position of the water collecting box feeding station 18, remove the diaphragm 10 from the preset position of the diaphragm feeding station 17 and assemble it in a U shape to the supporting cross bar 4, and its free end fixed by the diaphragm clamp 24 is inserted into the water collecting box 13.

[0066] The automatic assembly device 35 also includes a supporting liquid injection device 27 and a laser marking device 28, both of which are connected to the main control system 15. The main control system 15 controls the supporting liquid injection device 27 to inject the supporting liquid into the water collecting box 13 according to a preset program, and the main control system 15 controls the laser marking device 28 to mark the marking part of the water collecting box 13 in place.

[0067] The supporting liquid injection device 27, as shown in the attached Figure 11 As shown, it includes a discharge reweighing device 68, which includes a water collecting pipe support block 69 supported below the water collecting box 13, a metering scale 70 located below the water collecting pipe support block 69, and a water collecting pipe lifting cylinder 71 located below the metering scale 70.

[0068] As attached Figure 9 As shown, the film feeding station 17 includes an incoming conveyor chain 20, an outgoing conveyor chain 21, two elevators 22 and a plurality of feed trays 23. The incoming conveyor chain 20 and the outgoing conveyor chain 21 are arranged on the upper and lower layers, and both ends are connected to the two elevators 22. The feed tray 23 is placed on the incoming conveyor chain 20 and the outgoing conveyor chain 21 for circular transportation. At least one film 10 lies flat on the feed tray 23, as shown in the attached figure. Figure 10As shown, a group of diaphragm clamps 24 are respectively provided at both ends along the length direction of the diaphragm 10, and at both ends of each diaphragm clamp 24 are provided with at least one pair of clamp fixing members 25. The clamp fixing members 25 at different positions are used to fix diaphragms of different lengths.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. All equivalent changes and modifications made according to the content of the patent scope of this application should fall within the technical scope of the present invention.

Claims

1. An automated production line for manufacturing hollow fiber membrane modules, comprising a main control system (15), a frame (29), and a circulating transmission system (30), characterized in that: The machine frame (29) is divided into an automatic assembly station (31), a potting station (32), a constant temperature curing station (33), and a robot unloading station (34), and further includes: An automatic assembly device (35), the automatic assembly device (35) being located at the automatic assembly station (31) and comprising a membrane assembly intermediate rack (36), the automatic assembly device (35) being used to automatically assemble the membrane (10) and the water collecting box (13) into the membrane assembly intermediate rack (36), and the free end of the membrane (10) being assembled into the water collecting box (13); An automatic potting device (37), the automatic potting device (37) being located at the potting station (32) and being used for potting the free end of the membrane sheet (10) on the rotating rack (36) in the membrane assembly that has been delivered to the position; A constant temperature infiltration and curing device (38), the constant temperature infiltration and curing device (38) being located at the constant temperature curing station (33) and used for performing low temperature infiltration and high temperature curing on the free end of the diaphragm (10) after the glue is poured, with the temperature and duration being adjustable and controllable; An automatic unloading device (39), the automatic unloading device (39) being located at the robot unloading station (34) and being used for disassembling and collecting the diaphragm (10); The main control system (15) is respectively connected to the circulation conveying system (30), the automatic assembly device (35), the automatic potting device (37), the constant temperature infiltration curing device (38) and the automatic unloading device (39), and the circulation conveying system (30) on the rack (29) conveys the membrane assembly transfer rack (36) through each station in sequence; The membrane assembly rotating frame (36) includes a support frame (2), a vertical support rod (3) is fixedly connected to each of the left and right sides of the support frame (2), at least one horizontal support cross bar (4) is connected between the support rods (3), two pairs of membrane clamps (5) are provided on the left and right sides of the support frame (2), and the two pairs of membrane clamps (5) are respectively distributed on the front and rear sides of the support rods (3), a water collecting pipe positioning frame (6) is provided inside the support frame (2), and the front and rear sides of the water collecting pipe positioning frame (6) are respectively provided. The rear two pairs of water collecting box clamps (7) are located below the diaphragm clamp clamps (5), and each pair of diaphragm clamp clamps (5) and water collecting box clamps (7) has at least one clamping block that can elastically slide forward and backward. The hollow fiber membrane diaphragm (10) is supported on the supporting cross bar (4) in a U shape, and the two free ends are respectively fixed by the diaphragm clamps (24). The two diaphragm clamps (24) are respectively clamped in the front and rear diaphragm clamp clamps (5), and the two water collecting boxes (13) are respectively clamped in the front and rear water collecting box clamps (7); The support frame (2) is also fixedly connected to an inner guide block (8), which is located on the inner side below the diaphragm clamp holder (5). The automatic assembly device (35) also includes an outer guide block (9), which is pushed by a push cylinder (14) and cooperates with the inner guide block (8) to guide the membrane wire fixed in the diaphragm clamp (24) into the water collection box (13); The automatic assembly device (35) includes two robots (16), a diaphragm feeding station (17), and two water collecting box feeding stations (18). The membrane assembly transfer rack (36) is located at the automatic assembly station (31). The main control system (15) controls the robot (16) to assemble the water collecting box (13) into the water collecting box clamp (7) from the preset position of the water collecting box feeding station (18), remove the diaphragm (10) from the preset position of the diaphragm feeding station (17) and assemble it into a U-shape on the supporting cross bar (4), and the free end thereof fixed by the diaphragm clamp (24) is inserted into the water collecting box (13).

2. The automated production line for producing hollow fiber membrane modules according to claim 1, characterized in that: The automatic potting device (37) sequentially comprises a feeding device (40) for two components, a mixer (41) for mixing the two-component glue, and a glue dispensing device for dispensing the mixed glue into multiple paths. The glue dispensing device comprises a glue dispensing block (42) connected in sequence, a plurality of connecting pipelines (43), and a plurality of glue outlet heads (44). The glue dispensing block (42) is provided with a flow regulating plunger (45). The glue dispensing block (42) is also provided with a pushing device (46) for pushing the glue dispensing block into the water collecting box (13). A pipeline pressure detecting device (47) is also provided between the feeding device (40) and the mixer (41), and a pipeline cleaning device (48) is provided on the mixer (41).

3. The automated production line for producing hollow fiber membrane modules according to claim 1, characterized in that: The constant temperature infiltration and curing device (38) is divided into a low temperature infiltration zone and a high temperature curing zone. The time and temperature of the low temperature infiltration zone are set according to the requirements for full infiltration, and the time and temperature of the high temperature curing zone are set according to the requirements for the fastest curing after full infiltration.

4. The automated production line for manufacturing hollow fiber membrane modules according to claim 1, characterized in that: The automatic unloading device (39) includes an automatic disassembly and collection device (49), a membrane assembly collection rack (50), and a partition automatic assembly device (51). The automatic disassembly and collection device (49) is used for automatically disassembling the clamp and disassembling the membrane (10) from the membrane assembly transfer rack (36) and collecting and storing it in the membrane assembly collection rack (50). The two layers of membrane (10) placed horizontally in the membrane assembly collection rack (50) are separated by a partition (52). The partition automatic assembly device (51) includes an assembly rack (53). The assembly rack (53) is provided with a transverse slide rail (54) and a longitudinal lifting rack (55). The front end of the longitudinal lifting rack (55) is provided with a partition suction cup (56). The assembly rack (53) is also provided with a longitudinal lifting motor (57) and a transverse movement motor (58) to control the longitudinal lifting and transverse movement of the longitudinal lifting rack (55).

5. The automated production line for manufacturing hollow fiber membrane modules according to claim 1, characterized in that: The circulating conveying system (30) includes a plurality of conveyor chains (59), and adjacent conveyor chains (59) have a height difference. A reversing device (60) is set at the starting end or the terminal end of the conveyor chain (59). Each station of the conveyor chain (59) is provided with a blocking cylinder (61) and a positioning lifting device (62). The positioning lifting device (62) includes a transfer frame positioning plate (63), a lifting cylinder (64) is set in the center below the transfer frame positioning plate (63), and at least one positioning pin (65) is set on the upper surface of the transfer frame positioning plate (63). The positioning pin (65) cooperates with the pin hole (66) opened on the bottom plate (1) of the membrane module transfer frame (36) for positioning. Several lifting guide columns (67) are set below the transfer frame positioning plate (63). The positioning lifting device (62) is set below the conveyor chain (59) before the blocking cylinder (61).

6. The automated production line for manufacturing hollow fiber membrane modules according to claim 1, characterized in that: The circulating conveying system (30) is provided with a buffer zone before each workstation, and multiple workstations can be provided in parallel according to the progress requirements.

7. The automated production line for manufacturing hollow fiber membrane modules according to claim 1, characterized in that: The automatic assembly device (35) further includes a supporting liquid injection unit (27) and a laser marking device (28) both connected to the main control system (15). The main control system (15) controls the supporting liquid injection unit (27) to inject the supporting liquid into the water collecting box (13) according to a preset program. The main control system (15) controls the laser marking device (28) to mark the marking portion of the water collecting box (13) in place.

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