An assembly rack and automatic assembly device for making hollow fiber membrane components

Abstract

The present invention relates to the field of water treatment technology, and in particular to and discloses an assembly rack for making hollow fiber membrane components, including an assembly rack body and an outer guide block, the assembly rack body including a support frame, a support rod, and a support cross bar, two pairs of diaphragm clamp clamps are respectively arranged on the left and right sides of the support frame, distributed on the front and rear sides of the support rod, a water collecting pipe positioning frame is arranged on the inner side of the support frame, and two pairs of front and rear water collecting box clamps are respectively arranged on the left and right sides, and each pair of clamps has at least one clamping block that can slide elastically forward and backward, and the support frame is also fixedly connected to the inner guide block, and cooperates with the outer guide block to guide the membrane wire fixed to the diaphragm clamp into the water collecting box. The present invention also discloses an automatic assembly device, including a main control system, two robots, a diaphragm feeding station, two water collecting box feeding stations and an assembly station, and the assembly rack is located at the assembly station. The present invention has the advantages of high automation, high production efficiency, low cost, and low product scratch rate.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and in particular to an assembly rack and an automatic assembly device for manufacturing a hollow fiber membrane component. Background Art

[0002] Hollow fiber curtain membrane bioreactor is a new water treatment technology that combines a hollow fiber membrane separation unit with a biological treatment unit. It replaces the secondary sedimentation tank with a hollow fiber curtain membrane module and maintains a high active sludge concentration in the biochemical reactor to reduce the land occupation of sewage treatment facilities and reduce the amount of sludge by maintaining a low sludge load. Compared with traditional biochemical water treatment technology, it has the characteristics of high treatment efficiency, good effluent quality, compact equipment, small footprint, easy automatic control, and simple operation and management. It has been widely used in sewage treatment in the fields of municipal administration, power, steel, petrochemical, textile, food, etc.

[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 sealed into components by glue so that the inner surface of the membrane is completely sealed relative to the outside of the water collection pipe. The existing preparation method of the hollow fiber curtain membrane assembly is mainly to manually straighten the membrane and fix it in a certain position by clamping it with a jig, and then manually assemble the water collection pipe to complete the positioning. 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 addition, the membrane is wide, and each membrane is composed of thousands of soft hollow fiber membranes, which will expand. It is difficult to manually load the expanded membrane ends into the water collection pipe neatly and completely. It has the defects of requiring a lot of manpower in the production process, high labor costs, high labor intensity, difficult operation, and easy scratches on the product. Summary of the invention

[0004] In view of the defects of the prior art, the present invention provides an assembly rack and an automatic assembly device for manufacturing hollow fiber membrane components, which have a high degree of automation and are suitable for automated production lines.

[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solution:

[0006] An assembly rack for making hollow fiber membrane components, comprising a membrane clamp, an assembly rack body and an outer guide block, the assembly rack body comprising a support frame, a vertical support rod fixedly connected to each of the left and right sides of the support frame, at least one horizontal support cross bar connected between the support rods, two pairs of membrane clamp clamps are arranged on the left and right sides of the support frame, the two pairs of membrane clamp clamps are respectively distributed on the front and rear sides of the support rods, a water collecting pipe positioning frame is arranged inside the support frame, and two pairs of front and rear water collecting box clamps are respectively arranged on the left and right sides of the water collecting pipe positioning frame, and the water collecting box clamps are located at the membrane Below the film clamp clamp, each pair of diaphragm clamp clamps and water collection box clamps has at least one clamping block that can slide elastically forward and backward. The hollow fiber membrane diaphragm is supported in a U shape on the support crossbar, and the two free ends are fixed by the diaphragm clamps respectively. The two diaphragm clamps are clamped in the front and rear diaphragm clamp clamps respectively, and the two water collection boxes are clamped in the front and rear water collection box clamps respectively. The support frame is also fixedly connected to the inner guide block, which is located on the inner side below the diaphragm clamp clamp. The outer guide block is pushed by the push cylinder and cooperates with the inner guide block to guide the membrane wire fixed in the diaphragm clamp into the water collection box. The two free ends of the diaphragm are first fixed by the diaphragm clamp, and after the middle U-shaped support, the two free ends are assembled synchronously in front and behind the support rod to ensure that the diaphragm clamp enters the diaphragm clamp clamp, and at the same time, the inner and outer guide blocks cooperate to guide the end of the membrane wire into the water collection box.

[0007] Preferably, a bottom plate is also included, and the support frame and the water collecting pipe positioning frame are both fixed on the bottom plate, and at least one pin hole for positioning is provided on the bottom plate. The bottom plate is convenient for support and movement, and the bottom plate can be made of wear-resistant plate, and the pin hole is suitable for positioning with the support body on the automated production line.

[0008] 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 wire and is suitable for membrane wires of different lengths.

[0009] Preferably, the clamping blocks of the diaphragm clamp holder and the water collecting box clamp holder close to the support rod are inner clamping blocks, which are fixed, and the outer clamping block is provided with a guide chamfer on one side close to the inner clamping block. The outer clamping block slides elastically, which is more suitable for robot operation, and the guide chamfer facilitates the outer clamping block to pop open, and the diaphragm clamp enters the diaphragm clamp holder, which is more suitable for automated production lines.

[0010] Preferably, the diaphragm clamp has a soft elastic body inside, which can restrain thousands of hollow fiber membranes without damage. Both ends of the diaphragm extend out of the diaphragm clamp by 10 to 400 mm respectively. The diaphragm can move with the diaphragm clamp without relative displacement.

[0011] Preferably, membrane clamp baffles are provided on the left and right sides of the support frame, respectively, to limit the displacement of the membrane clamp and the membrane wire in the left and right directions, and ensure that the membrane wire enters the water collecting box in the left and right directions.

[0012] An automatic assembly device for making hollow fiber membrane components uses the above-mentioned assembly rack, including a main control system, two robots, a membrane feeding station, two water collecting box feeding stations and an assembly station. The assembly rack is located at the 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 membrane from the preset position of the membrane feeding station and assemble it into a U shape to the supporting cross bar, and the free end fixed by the membrane clamp is inserted into the water collecting box. The robot is used to assemble the two ends of the membrane wire synchronously, saving manpower and improving efficiency.

[0013] Preferably, the diaphragm feeding station includes an incoming conveyor chain, an outgoing conveyor chain, two elevators and a number of feed trays. The incoming conveyor chain and the outgoing conveyor chain are arranged on the upper and lower layers, and both ends are connected to the two elevators. The feed tray is placed on the incoming conveyor chain and the outgoing conveyor chain for circular transportation. At least one diaphragm lies flat on the feed tray. A group of diaphragm clamps are arranged at both ends along the length direction of the diaphragm. At least one pair of clamp clamps are arranged at both ends of each diaphragm clamp. Clamp fixings at different positions are used to fix diaphragms of different lengths. Several diaphragms are placed on the feed tray synchronously, transported by the incoming conveyor chain, and assembled after being picked up by the robot. The empty feed tray enters the elevator, is sent back through the outgoing conveyor chain, and is recycled.

[0014] As a preference, it also includes a supporting liquid injection device 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. The supporting liquid injection device cooperates with the glue injection process, and the laser marking device marks the water collecting box for subsequent identification.

[0015] Preferably, the support liquid injection device includes a discharge re-weighing 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 discharge re-weighing device ensures that the weight of the support liquid injected is within a control range.

[0016] The assembly rack and automatic assembly device for making hollow fiber membrane components of the present invention have a high degree of automation and are suitable for subsequent automated production lines, can save a lot of manpower, and have the advantages of high production efficiency, low cost, easy operation, and low product scratch rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an assembly frame body according to an embodiment of the present invention.

[0018] Figure 2 It is a side view of an assembly rack according to an embodiment of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the embodiment of the present invention after being assembled.

[0020] Figure 4 It is a schematic diagram of the structure of the automatic assembly device according to an embodiment of the present invention.

[0021] Figure 5 It is a schematic structural diagram of a diaphragm feeding station according to an embodiment of the present invention.

[0022] Figure 6 It is a schematic structural diagram of a feed tray according to an embodiment of the present invention.

[0023] Figure 7 It is a structural schematic diagram of a discharging and reweighing device according to an embodiment of the present invention.

[0024] In the figure: 1, bottom plate; 2, support frame; 3, support rod; 4, support cross bar; 5, diaphragm clamp clamp; 6, water collecting pipe positioning frame; 7, water collecting box clamp; 8, inner guide block; 9, outer guide block; 10, diaphragm; 12, diaphragm clamp baffle; 13, water collecting box; 14, push cylinder; 15, main control system; 16, robot; 17, diaphragm feeding station; 18, water collecting box feeding station; 19, assembly station; 20, incoming conveyor chain; 21, outgoing conveyor chain; 22, elevator; 23, feeding tray; 24, diaphragm clamp; 25, clamp fixing; 27, supporting liquid injection device; 28, laser marking device; 66, pin hole; 68, discharge re-weighing device; 69, water collecting pipe support block; 70, weighing scale; 71, water collecting pipe lifting cylinder. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with FIGS. 1-7 and specific implementation methods.

[0026] An assembly frame for making hollow fiber membrane components, as shown in the attached Figure 1 , 2 3, including a diaphragm clamp 24, an assembly frame body and an outer guide block 9, the assembly frame body as shown in the attached Figure 1As shown, it 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 clamp clamps 5 are arranged on the left and right sides of the support frame 2, and the two pairs of diaphragm clamp clamps 5 are respectively distributed on the front and rear 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 rear 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 clamp clamps 5 and the water collecting box clamps 7 close to the support rod 3 are inner clamping blocks, the inner clamping blocks are fixed, and the outer clamping blocks can slide elastically forward and backward, and a guide chamfer is provided on the upper side of the outer clamping block close to the inner clamping block.

[0027] As attached Figure 2 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, and the inner guide block 8 is located on the inner side below the membrane wire 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.

[0028] It also includes a bottom plate 1, the support frame 2 and the water collecting pipe positioning frame 6 are fixed on the bottom plate 1, and two pin holes 66 for positioning are opened on the bottom plate. The pin holes 66 are through holes with metal cylindrical sleeves embedded inside.

[0029] The upper surface of the support crossbar 4 is an arc surface and is inlaid with a soft elastic body. The support crossbar 4 is detachably connected to the support rod 3, and the height of the support crossbar 4 is adjustable. The inner surface of the diaphragm clamp 24 is provided with a soft elastic body.

[0030] 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.

[0031] An automatic assembly device for making hollow fiber membrane components, as shown in the attached Figure 4 As shown, the above-mentioned assembly rack is used, including a main control system 15, two robots 16, a diaphragm feeding station 17, two water collecting box feeding stations 18 and an assembly station 19. The assembly rack is located at the assembly station 19. 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, removes the diaphragm 10 from the preset position of the diaphragm feeding station 17 and assembles 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.

[0032] As attached Figure 5As 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 cyclic transportation. At least one film 10 lies flat on the feed tray 23, as shown in the attached Figure 6 As shown, a group of diaphragm clamps 24 are respectively arranged at both ends along the length direction of the diaphragm 10, and at least one pair of clamp fixing members 25 are arranged at both ends of each diaphragm clamp 24. The clamp fixing members 25 at different positions are used to fix diaphragms of different lengths.

[0033] As attached Figure 4 As shown, it 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.

[0034] As attached Figure 7 As shown, the supporting liquid injection device 27 includes a discharge reweighing device 68, which includes a water collecting pipe support block 69 supported under the water collecting box 13, a metering scale 70 located under the water collecting pipe support block 69, and a water collecting pipe lifting cylinder 71 located under the metering scale 70.

[0035] After the automatic assembly device is assembled, it can be subsequently glued using traditional glue pouring methods, or it can be used in conjunction with an automated production line.

[0036] 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 be within the technical scope of the present invention.

Claims

1. An assembly rack for making hollow fiber membrane modules, characterized in that: The assembly frame comprises a diaphragm clamp (24), an assembly frame body and an outer guide block (9), wherein the assembly frame body comprises a support frame (2), wherein a vertical support rod (3) is fixedly connected to each of the left and right sides of the support frame (2), and at least one horizontal support cross bar (4) is connected between the support rods (3); two pairs of diaphragm clamp clamps (5) are respectively arranged on the left and right sides of the support frame (2), and the two pairs of diaphragm clamp clamps (5) are respectively distributed on the front and rear sides of the support rod (3); a water collecting pipe positioning frame (6) is arranged inside the support frame (2), and two pairs of front and rear 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 below the diaphragm clamp clamps (5), and each pair of diaphragm At least one clamping block of the sheet clamp holding member (5) and the water collecting box clamp holding member (7) can slide elastically forward and backward. The hollow fiber membrane sheet (10) is supported on the supporting cross bar (4) in a U shape. The two free ends are respectively fixed by membrane clamps (24). The two membrane clamps (24) are respectively clamped in the front and rear membrane clamp holding members (5). The two water collecting boxes (13) are respectively clamped in the front and rear water collecting box clamping members (7). The support frame (2) is also fixedly connected to the inner guide block (8). The inner guide block (8) is located on the inner side below the membrane clamp holding member (5). The outer guide block (9) is pushed by the pushing cylinder (14) and cooperates with the inner guide block (8) to guide the membrane filaments fixed in the membrane clamp (24) into the water collecting box (13).

2. An assembly rack for making hollow fiber membrane modules according to claim 1, characterized in that: It also comprises a bottom plate (1), the support frame (2) and the water collecting pipe positioning frame (6) are both fixed on the bottom plate (1), and at least one pin hole (66) for positioning is provided on the bottom plate (1).

3. The assembly rack for manufacturing hollow fiber membrane modules according to claim 1, characterized in that: 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 bar (3) are detachably connected, and the height of the support cross bar (4) is adjustable.

4. The assembly rack for manufacturing hollow fiber membrane modules according to claim 1, characterized in that: The clamping blocks of the diaphragm clamp clamping piece (5) and the water collecting box clamping piece (7) close to the support rod (3) are inner clamping blocks, the inner clamping blocks are fixed, and a guide chamfer is provided on one side of the outer clamping block close to the inner clamping block.

5. The assembly rack for manufacturing hollow fiber membrane modules according to claim 1, characterized in that: The inner surface of the diaphragm clamp (24) is provided with a soft elastic body, and both ends of the diaphragm (10) extend out of the diaphragm clamp (24) by 10 to 400 mm.

6. The assembly rack for manufacturing hollow fiber membrane modules according to claim 1, characterized in that: 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 (24) in the left and right directions.

7. An automatic assembly device for manufacturing a hollow fiber membrane module, using the assembly rack according to any one of claims 1 to 6, characterized in that: The invention comprises a main control system (15), two robots (16), a diaphragm feeding station (17), two water collecting box feeding stations (18) and an assembly station (19), wherein the assembly frame is located at the assembly station (19), 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), removes the diaphragm (10) from the preset position of the diaphragm feeding station (17) and assembles it into a U shape onto the supporting cross bar (4), and the free end thereof fixed by the diaphragm clamp (24) is inserted into the water collecting box (13).

8. The automatic assembly device for manufacturing hollow fiber membrane modules according to claim 7, characterized in that: The diaphragm feeding station (17) comprises an incoming conveyor chain (20), an outgoing conveyor chain (21), two elevators (22) and a plurality of feeding trays (23). The incoming conveyor chain (20) and the outgoing conveyor chain (21) are arranged on upper and lower layers, and both ends are connected to the two elevators (22). The feeding tray (23) is placed on the incoming conveyor chain (20) and the outgoing conveyor chain (21) for cyclic transportation. At least one diaphragm (10) lies flat on the feeding tray (23). At least one set of diaphragm clamps (24) are arranged at both ends along the length direction of the diaphragm (10). At least one pair of clamp fixing parts (25) are arranged at both ends of each diaphragm clamp (24). The clamp fixing parts (25) at different positions are used to fix diaphragms (10) of different lengths.

9. The automatic assembly device for manufacturing a hollow fiber membrane module according to claim 7, characterized in that: It also includes a supporting liquid injection device (27) and a laser marking device (28) both connected to the main control system (15), wherein 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 portion of the water collecting box (13) in place.

10. The automatic assembly device for manufacturing hollow fiber membrane modules according to claim 9, characterized in that: The support liquid injection device (27) comprises a discharge re-weighing device (68), and the discharge re-weighing device (68) comprises 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).

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