A central tube feeding fixture for reverse osmosis membrane production

Abstract

This utility model discloses a central tube loading fixture for reverse osmosis membrane production, relating to the field of reverse osmosis membrane production technology. It includes a fixture table, an industrial robot, and a double-speed chain conveyor. The top surface of the fixture table houses the loading fixture assembly. This utility model design utilizes the coordination of the fixture table, loading fixture assembly, industrial robot, robot-side quick-change disc, double-speed chain conveyor, material carrier plate, and partition plate. During processing, the semi-finished permeate membrane is fitted onto the surface of the central tube and transported to the side of the industrial robot via the double-speed chain conveyor. The industrial robot quickly changes to the corresponding fixture, aligns the contour gripper with the annular groove, picks up the membrane, and places it at the designated position on the worktable for the next process. The proper use of this device allows a single industrial robot to perform parallel tasks, saving costs and avoiding downtime for fixture changes, thus improving transportation efficiency. Furthermore, the improved assembly accuracy reduces equipment alarm frequency, further enhancing processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of reverse osmosis membrane production technology, and in particular to a central tube feeding fixture for reverse osmosis membrane production. Background Technology

[0002] Reverse osmosis membranes are a key filtration material used in water treatment. They effectively remove salt, bacteria, and other impurities from water and are widely used in seawater desalination, purified water production, and wastewater recycling. Their production process typically involves the rolling or assembly of multiple layers of material, with the central tube serving as the core component for carrying and transporting the membrane, making it crucial to the membrane's processing.

[0003] In automated reverse osmosis membrane production lines, the central tube is primarily used to support and fix the membrane material, facilitating subsequent permeability testing or encapsulation. In practice, workers or machinery need to place the semi-finished membrane onto the central tube, which is then transferred between processes via a double-speed chain conveyor. For ease of transport and positioning, the central tube is typically inserted into a fixed loading platform on the production line and then placed on a conveyor plate. Furthermore, to facilitate gripping and movement by industrial robots, the central tube is often designed with clamping points at both ends or on its outer circumference to meet the needs of automated loading and unloading.

[0004] Currently, in production, when the same industrial robot performs multiple conveying tasks, it needs to continuously load materials, often requiring the replacement or adjustment of fixtures. Traditional methods of fixture changeover are slow, affecting overall production efficiency. Therefore, a dedicated loading fixture that can quickly adapt, accurately position, and is easy for robots to operate is needed to achieve efficient and stable automated production. This design is proposed precisely to address this need. Utility Model Content

[0005] In order to overcome the above-mentioned defects in the prior art, this utility model provides a central tube feeding fixture for reverse osmosis membrane production.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a central tube feeding fixture for reverse osmosis membrane production, including a fixture table, an industrial robot and a double-speed chain conveyor, wherein the top surface of the fixture table is equipped with a feeding fixture assembly.

[0007] The feeding clamp assembly includes a two-finger gripper cylinder. The bottom of the two-finger gripper cylinder is placed on the top surface of the clamping table. A contour gripper is fixedly connected to the working end of the two-finger gripper cylinder. A floating compensation unit is fixedly installed above the two-finger gripper cylinder. A clamping side quick-change disc is fixedly installed on the top surface of the floating compensation unit.

[0008] Furthermore, the end of the robotic arm of the industrial robot is fixedly installed with a robot-side quick-change disc, and the top of the gripper-side quick-change disc and the end of the robot-side quick-change disc can be coupled and docked.

[0009] Furthermore, a material carrier plate is movably connected to the top of the double-speed chain conveyor, and a material carrier frustum is fixedly connected to the top surface of the material carrier plate.

[0010] Furthermore, a circular hole is provided at the top of the material-carrying truncated cone, and a central tube is movably connected inside the circular hole. A limit ring is fixedly connected to the surface of the central tube, and a baffle is provided above the limit ring.

[0011] Furthermore, the baffle is internally movably connected to the surface of the central tube, and the surface of the central tube has at least one annular groove that can be used to engage with the contour gripper for grasping.

[0012] Furthermore, the surface of the central tube is stacked with multiple layers of permeable membranes and septa, and the surface of the central tube is provided with multiple vent holes.

[0013] The beneficial effects of this utility model are as follows: By employing a fixture table, a loading fixture assembly, an industrial robot, a robot-side quick-change tray, a double-speed chain conveyor, a material carrier plate, a material carrier frustum, a central tube, a limiting ring, a baffle, a permeable membrane, and a partition, the semi-finished permeable membrane is fitted onto the surface of the central tube during processing. The double-speed chain conveyor then transports it to the side of the industrial robot. The industrial robot quickly changes to the corresponding fixture, aligns the contour gripper with the annular groove, picks up the membrane, and places it at the designated position on the worktable for the next process. The rational use of this device allows a single industrial robot to perform parallel tasks, saving costs and avoiding downtime for fixture changes, thus improving transportation efficiency. Furthermore, the improved assembly accuracy reduces the frequency of equipment alarms, further enhancing processing efficiency. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0017] Figure 3 This is a schematic diagram of the feeding clamp assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure related to the central tube of this utility model;

[0019] Figure 5 This is a schematic diagram of the central tube of this utility model from another perspective.

[0020] In the diagram: 1. Fixture table; 2. Feeding fixture assembly; 3. Two-finger gripper cylinder; 4. Contouring gripper; 5. Floating compensation unit; 6. Fixture side quick-change plate; 7. Industrial robot; 8. Robot side quick-change plate; 9. Double-speed chain conveyor; 10. Carrying plate; 11. Carrying frustum; 12. Central tube; 13. Limiting ring; 14. Baffle; 15. Annular groove; 16. Exhaust port; 17. Permeable membrane; 18. Partition. Detailed Implementation

[0021] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0022] Example 1

[0023] according to Figure 1-5 As shown, a center tube feeding fixture for reverse osmosis membrane production includes a fixture table 1, an industrial robot 7, and a double-speed chain conveyor 9. A feeding fixture assembly 2 is placed on the top surface of the fixture table 1. The feeding fixture assembly 2 includes a two-finger gripper cylinder 3. The bottom of the two-finger gripper cylinder 3 is placed on the top surface of the fixture table 1. A contour gripper 4 is fixedly connected to the working end of the two-finger gripper cylinder 3. A floating compensation unit 5 is fixedly installed above the two-finger gripper cylinder 3. A fixture-side quick-change disc 6 is fixedly installed on the top surface of the floating compensation unit 5. A robot-side quick-change disc 8 is fixedly installed at the end of the robotic arm of the industrial robot 7. The top of the fixture-side quick-change disc 6 and the robot-side quick-change disc 8 are connected... The end can be coupled and docked. The top of the double-speed chain conveyor 9 is movably connected to a material carrier plate 10. The top surface of the material carrier plate 10 is fixedly connected to a material carrier frustum 11. The top of the material carrier frustum 11 is provided with a circular hole. The inside of the circular hole is movably connected to a central tube 12. The surface of the central tube 12 is fixedly connected to a limit ring 13. A baffle 14 is provided above the limit ring 13. The inside of the baffle 14 is movably connected to the surface of the central tube 12. The surface of the central tube 12 is provided with at least one annular groove 15, which can be used to cooperate with the contour gripper 4 for gripping. The surface of the central tube 12 is stacked with multiple layers of permeable membrane 17 and partition 18. The surface of the central tube 12 is provided with multiple exhaust holes 16.

[0024] In this embodiment, the industrial robot 7 may need to perform multiple gripping and feeding tasks simultaneously during processing. The top surface of the fixture table 1 can hold multiple fixtures at the same time. Before use, the robot-side quick-change plate 8 is installed at the end of the robotic arm of the industrial robot 7. Each fixture consists of a two-finger gripper cylinder 3, a contour gripper 4, a floating compensation unit 5, and a fixture-side quick-change plate 6. The difference is that the two-finger gripper cylinder 3 and the contour gripper 4 need to be selected and specially designed according to different workpieces to adapt to their size and shape. The fixture-side quick-change plate 6 and the robot-side quick-change plate 8 of the multiple fixtures are compatible for quick replacement. In addition, the top surface of the fixture table 1 is next to each fixture. A photoelectric sensor needs to be connected to the automated system of the production line as a detection signal output. During processing, the semi-finished permeable membrane 17 is placed on the surface of the central tube 12 and divided into multiple layers by multiple partitions 18 for easy subsequent stacking. It is then transported to the side of the industrial robot 7 by a double-speed chain conveyor 9. The industrial robot 7 quickly changes to the corresponding fixture, aligns the contour gripper 4 with the annular groove 15 to pick up the workpiece and place it at the designated position on the workbench of the next process. The slight displacement of the bottom connection part of the floating compensation unit 5 compensates for errors caused by differences in workpiece shape, size, and weight to prevent damage to the workpiece or other equipment. The reasonable use of the above devices allows one industrial robot 7 to perform parallel tasks, saving costs and avoiding downtime for fixture changes, thus improving transportation efficiency. At the same time, the improved assembly accuracy reduces the frequency of equipment alarms, further improving processing efficiency.

[0025] Additional Explanation: 1. A quick-change tray typically consists of a main tray mounted at the end of the robot arm and a tool-side adapter mounted on a gripper or jaw. Its core functionality lies in utilizing a pneumatic or electric drive mechanism to achieve locking and releasing. When the robot needs to change grippers, the control system issues a command, the locking mechanism inside the quick-change tray unlocks, and the robot places the current gripper in the designated position; subsequently, it grasps the new gripper, completes the locking action after precise alignment, and the entire process can be completed within seconds.

[0026] II. The floating compensation unit at the robot's end effector is primarily based on a combination of compliant mechanisms and sensor technology. During assembly operations, the floating unit, through its compliant mechanism design, can absorb and compensate for errors caused by differences in workpiece shape, size, and weight. Simultaneously, sensors can monitor force and position information in real time during the assembly process and feed this information back to the robot's control system, thereby achieving precise control of the assembly process. III. Advantages of the floating unit: Improved assembly accuracy: By eliminating errors in the robot's assembly process, the floating unit can significantly improve assembly accuracy.

[0027] Both the floating compensation unit 5 and the quick-change plate on the clamp side are existing mature technologies.

[0028] The working principle of the central tube feeding fixture for reverse osmosis membrane production will be explained in detail below.

[0029] according to Figure 1-5 As shown, in use, the industrial robot 7 may need to perform multiple gripping and feeding tasks simultaneously during processing. The top surface of the fixture table 1 can hold multiple fixtures at the same time. Before use, the robot-side quick-change disc 8 is installed at the end of the robotic arm of the industrial robot 7. Each fixture consists of a two-finger gripper cylinder 3, a contour gripper 4, a floating compensation unit 5, and a fixture-side quick-change disc 6. The difference is that the two-finger gripper cylinder 3 and the contour gripper 4 need to be selected and specially designed according to different workpieces to adapt to their size and shape. The fixture-side quick-change disc 6 and the robot-side quick-change disc 8 of the multiple fixtures are compatible for quick replacement. Furthermore, the top surface of the fixture table 1 can accommodate multiple fixtures simultaneously. Next to each fixture, a positioning photoelectric sensor needs to be installed and connected to the production line's automation system as a detection signal output. During processing, the semi-finished permeable membrane 17 is fitted onto the surface of the central tube 12 and divided into multiple layers by multiple partitions 18 for easy subsequent stacking. It is then transported to the side of the industrial robot 7 via a double-speed chain conveyor 9. The industrial robot 7 quickly changes to the corresponding fixture, aligns the contour gripper 4 with the annular groove 15 to grip it, and places it at the designated position on the workbench of the next process. The slight displacement of the bottom connection part of the floating compensation unit 5 compensates for errors caused by differences in workpiece shape, size, and weight, preventing damage to the workpiece or other equipment. The proper use of this device allows one industrial robot 7 to perform parallel tasks, saving costs and avoiding downtime for fixture changes, thus improving transportation efficiency. Furthermore, the improved assembly accuracy reduces the frequency of equipment alarms, further enhancing processing efficiency.

[0030] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A central tube feeding fixture for reverse osmosis membrane production, comprising a fixture table (1), an industrial robot (7), and a double-speed chain conveyor (9), characterized in that: The top surface of the clamping table (1) is provided with a feeding clamping assembly (2); The feeding clamp assembly (2) includes a two-finger gripper cylinder (3). The bottom of the two-finger gripper cylinder (3) is placed on the top surface of the clamping table (1). The working end of the two-finger gripper cylinder (3) is fixedly connected to a contour gripper (4). A floating compensation unit (5) is fixedly installed above the two-finger gripper cylinder (3). A clamping side quick-change disc (6) is fixedly installed on the top surface of the floating compensation unit (5).

2. The central tube feeding fixture for reverse osmosis membrane production according to claim 1, characterized in that, The robotic arm of the industrial robot (7) is fixedly mounted with a robot-side quick-change disc (8), and the top of the clamp-side quick-change disc (6) and the end of the robot-side quick-change disc (8) can be coupled and docked.

3. The central tube feeding fixture for reverse osmosis membrane production according to claim 1, characterized in that, The top of the double-speed chain conveyor (9) is movably connected to a material carrier plate (10), and a material carrier frustum (11) is fixedly connected to the top surface of the material carrier plate (10).

4. The central tube feeding fixture for reverse osmosis membrane production according to claim 3, characterized in that, The top of the material-carrying truncated cone (11) has a circular hole, and a central tube (12) is movably connected inside the circular hole. A limiting ring (13) is fixedly connected to the surface of the central tube (12), and a baffle (14) is provided above the limiting ring (13).

5. A central tube feeding fixture for reverse osmosis membrane production according to claim 4, characterized in that, The baffle (14) is movably connected to the surface of the central tube (12), and the surface of the central tube (12) is provided with at least one annular groove (15) which can be used to cooperate with the contour gripper (4) for gripping.

6. The central tube feeding fixture for reverse osmosis membrane production according to claim 5, characterized in that, The surface of the central tube (12) is stacked with multiple layers of permeable membrane (17) and septum (18), and the surface of the central tube (12) is provided with multiple vent holes (16).

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