Automatic filter screen welding system

Abstract

The application relates to the technical field of filter screen welding, in particular to an automatic filter screen welding system which comprises a workbench, a filter screen belt conveying and cutting device, a welding device, a discharging baffle and a control device. Functions such as feeding, cutting and welding are combined into one device, and separated work steps are automatically completed, so that the manual participation in the welding work is effectively reduced, the welding work operation is simple, safety accidents are avoided, and the intelligent work flow can improve the work efficiency.

Description

Technical Field

[0001] This invention relates to the field of filter screen welding technology, and more specifically to an automatic filter screen welding system. Background Technology

[0002] Animal or human body fluid specimens often contain a large amount of non-diagnostic components such as mucus. Before testing, the specimens need to be preliminarily filtered to remove these non-diagnostic components and improve diagnostic sensitivity. This process is generally accomplished using a sieve. A sieve is a cylindrical device with a filter screen welded to one end of a sieve tube, which involves the welding technology of the filter screen and the sieve tube.

[0003] Existing technologies generally employ custom-made screen tubes and pre-cut filter mesh sheets, which are then welded together using a welding machine. One type of screen tube is the bottle body portion of the screen bottle disclosed in patent CN206881733U, see [link to patent]. Figure 2 The screen tube is a cylindrical tube open at both ends, with one end threaded and the other end, which is not threaded, welded with a filter screen. The problems are: manual feeding is required to ensure the filter screen and screen tube are concentric; this process demands high concentration from the operator, leading to fatigue and low efficiency; the filter screen is small and lightweight, and the airflow generated when the welding head moves downwards can easily cause the filter screen pieces to shift, resulting in defects or even scrap in the welded product; furthermore, the welding work area is open, requiring operators to be exposed under the welding head to feed the filter screen, posing a safety hazard.

[0004] Invention patent CN211763566U discloses a fully automatic ultrasonic welding system for filters, including a worktable and a central turntable mounted on the worktable, a base feeding mechanism, a filter screen feeding mechanism, a top cover feeding mechanism, an ultrasonic welding device, an airtightness testing mechanism, an airflow detection mechanism, and a discharge device. Other mechanisms are arranged sequentially along the circumference of the central turntable and correspond to the workstations. Through the coordinated operation of the central turntable, base feeding mechanism, filter screen feeding mechanism, top cover feeding mechanism, ultrasonic welding device, airtightness testing mechanism, airflow detection mechanism, and discharge device, fully automatic production of filters—including feeding, discharging, welding, and testing—is achieved. Furthermore, each component of the filter can be automatically tested for compliance, eliminating the need for manual operation and improving product quality and stability. However, pre-cut filter screens are still required, and the system cannot solve the problems of failed or excessive filter screen suction, as well as electrostatic attraction during filter screen placement leading to defective or scrap products.

[0005] Therefore, there is an urgent need for a more automated automatic filter welding machine, such as... Figure 2 Welding the bottom end face of the screen tube can solve the problems of safety hazards for operators, automatic cutting of the filter screen, and high welding failure rate. Summary of the Invention

[0006] This invention provides an automatic filter screen welding machine to solve the problems existing in related technologies, such as safety hazards to operators, cumbersome operation, inability to automatically cut filter screens, and high scrap rate of finished products.

[0007] To achieve the above objectives, the present invention provides an automatic filter screen welding system for welding filter screen pieces to the end of a screen tube, comprising: a workbench, which is a table with a supporting plane, and further comprising a feeding device, a filter screen belt conveying and cutting device, a welding device, a discharge baffle and a control device installed on the supporting plane;

[0008] The feeding device includes a feeding tray, a feeding seat and a motor. The feeding tray is a circular double-layer structure. The upper layer is a filter screen piece conveying tray and the lower layer is a screen tube conveying tray. The two layers are fixedly connected by a mounting rod.

[0009] The filter mesh conveyor, cutting device, welding device, and discharge baffle are arranged sequentially around the feeding tray;

[0010] The filter belt conveyor cutting device is located behind the feed seat and is used to place, convey and cut the filter belt;

[0011] The welding device is located behind the filter screen conveyor cutting device and includes a welding assembly and a pushing assembly, used to weld the filter screen pieces to the end of the screen tube;

[0012] The control device includes a switch, multiple sensors, and a controller. The multiple sensors are placed at different workstations, and the controller collects the signals from the multiple sensors and performs the work.

[0013] The discharge baffle is located after the welding device and is used for discharging the welded screen bottle.

[0014] Furthermore, the feeding tray is fixed to the workbench by the first bracket, and the filter screen piece conveying tray and the screen tube conveying tray are arranged in parallel, with the distance between the two layers being greater than the height of the screen tube; the filter screen piece conveying tray is equipped with several cutting stations, which are evenly arranged on the outer periphery of the filter screen piece conveying tray; the cutting station is round and slightly larger in diameter than the screen tube, and is used to place and convey the cut filter screen pieces.

[0015] Furthermore, a mesh support ring is provided in the cutting station for placing the filter mesh cutting pieces; the mesh support ring is an annular protrusion set in the cutting station, with a ring width of 0.05-1mm, preferably 0.1mm; the inner diameter of the mesh support ring is the same as the diameter of the filter mesh cutting piece, and slightly larger than the diameter of the screen tube;

[0016] An anti-adhesion baffle is installed above the cutting station; the anti-adhesion baffle is made of elastic material, is circular, and has an inner diameter slightly smaller than the diameter of the cutting station.

[0017] Furthermore, the screen tube conveyor plate is equipped with screen tube stations, the number of which is the same as the number of cutting stations, and they are evenly distributed on the outer periphery of the screen tube conveyor plate; the positions of the screen tube stations and the cutting stations are vertically corresponding and concentric; the screen tube stations are outward-facing arcs; the diameter of the arc is slightly larger than the diameter of the screen tube body, and is used to place the screen tube.

[0018] Furthermore, the feeding seat is located on one side of the feeding tray and fixed to the workbench by the second bracket. It includes a feeding platform, which is located at the top of the second bracket and is U-shaped with an opening in the horizontal direction. The width of the feeding platform is matched with the diameter of the screen tube. The feeding station is equipped with a feeding sensor to detect the feeding status of the screen tube and transmit the signal to the controller.

[0019] Furthermore, screen tube baffles are installed along the edge of the screen tube conveyor plate. The shape of the screen tube baffles matches the shape of the screen tube conveyor plate and is arc-shaped. They are installed along one side of the workstation, between the feed seat and the discharge baffle. The motor is installed on the worktable and transmits power intermittently to the feed plate.

[0020] Furthermore, the filter belt conveying and cutting device includes a belt frame, a pressure device, a cutting device, and a conveying device for placing, cutting, and conveying the filter belt;

[0021] The mesh belt frame, the vertical pressing device, the cutting device, and the conveying device are arranged in a straight line on one side of the feeding tray, and the straight line is tangent to the feeding tray.

[0022] The mesh belt frame is used to place the mesh belt reel and includes a third bracket and a mesh belt shaft; the third bracket is fixed on the workbench and the mesh belt shaft is set on the upper part of the third bracket; the mesh belt shaft is used to hold the mesh belt reel.

[0023] Furthermore, the cutting device is located at the cutting station on one side of the feeding tray, and is fixed to the first base by the fourth bracket. The first base is fixed to the worktable by the fifth bracket. The cutting device includes a material carrier, a cutting cylinder, and a cutting head.

[0024] The material carrier is fixedly installed on the first base, located above the filter screen sheet conveyor and below the cutting head; the material carrier is long and narrow, and is set along the tangent of the feeder in the length direction; the material carrier is the carrier for the filter screen belt conveyor; the part of the material carrier near the mesh belt frame is slightly wider than the width of the filter screen belt; there are cutting holes on the material carrier, and the cutting holes are circular.

[0025] The cutting head is mounted on the cutting cylinder, which is fixedly installed inside the fourth bracket; the cutting head can move up and down under the drive of the cutting cylinder; the cutting head is a round tube or cylinder with a diameter slightly larger than that of the welding screen tube; the cutting head and the cutting holes on the loading platform correspond to each other in the vertical direction.

[0026] Furthermore, a limit baffle is provided at one end of the loading platform near the mesh belt frame. There are two limit baffles, which are installed on both sides of the loading platform. The limit baffle is composed of two vertical strip-shaped components that can be integrally formed. One side of one strip is fixed to one side of the loading platform, and the other strip is parallel to the loading platform and the distance between the strip and the loading platform is 0.5mm-1mm.

[0027] A cutting sensor is installed at the cutting station to detect whether there is a screen tube in the screen tube station located above the cutting station, and transmits a signal to the controller. The controller controls the cutting head to work through the signal.

[0028] Furthermore, the conveying device includes a conveying assembly and a clamping assembly; the conveying assembly includes a mounting platform, a first base, a second base, a shaft, a gantry, a moving cylinder, a first clamping cylinder, and a mesh belt fixing clamp; the clamping assembly includes a second base, a second clamping cylinder, and clamping clamps.

[0029] The mounting platform of the conveying component is long and narrow, and is set along the length of the loading platform. One end of the mounting platform is fixed on the first base, and is located above the filter screen cutting sheet conveying tray and below the loading platform.

[0030] The second base is fixedly installed at the other end of the installation platform;

[0031] The portion of the loading platform furthest from the mesh belt frame has a width smaller than the width of the filter mesh belt but larger than the diameter of the filter mesh sheet.

[0032] The shafts are arranged parallel to the length of the loading platform and are located on both sides of the installation platform. The two ends of the shafts are connected to the first base and the second base. The two shafts can ensure that the installation platform and the loading platform are between the two shafts in the width direction, and the two shafts can ensure that the two shafts are between the installation platform and the loading platform in the height direction.

[0033] The base has through holes on both sides. The conveying components are installed on the shafts on both sides of the mounting platform through the through holes on both sides of the base, and the base can move along the shafts.

[0034] The base has a movable cylinder that can drive the conveying assembly to move along the axis;

[0035] The upper surface of the base is flat, with two clamping positions on both sides and a groove in the middle. The size of the groove matches the width of the loading platform, allowing the loading platform to pass through. After the loading platform is placed in the groove, the upper surface of the loading platform is flush with the upper surface of the mounting platform.

[0036] The gantry frame is connected to the first base. The gantry frame is equipped with a first pressing cylinder that can move up and down. The lower end of the first pressing cylinder is equipped with a mesh belt fixing clamp.

[0037] Furthermore, the welding device includes a welding assembly and a feeding assembly; wherein, the welding assembly includes a seventh support, a welding head and a welding cylinder, and the feeding assembly includes a lifting cylinder and a lifting head;

[0038] The welding assembly is located above the welding station of the feeding tray and is used to weld the filter screen pieces to the end of the screen tube. The welding station is the next station after the cutting station. The welding cylinder is mounted on the worktable through the seventh bracket, and the welding head is mounted on the welding cylinder fixed at the top of the seventh bracket. It can be controlled by the welding cylinder to move up and down.

[0039] The material pushing assembly is located below the feeding tray and is fixedly installed on the worktable. The material pushing assembly includes a lifting cylinder and a lifting head. The lifting head is installed above the lifting cylinder and can be controlled by the lifting cylinder to move up and down.

[0040] The lifting head at the top of the lifting cylinder is truncated cone-shaped. The diameter of the end of the truncated cone is less than or equal to the inner diameter of the screen tube, and the diameter of the middle part of the truncated cone is greater than the inner diameter of the screen tube. The part connecting the middle part and the end of the truncated cone forms the lifting position, which is in contact with the screen tube.

[0041] Welding sensors are installed at the welding station to detect whether there is a screen tube in the screen tube station located above the welding station, and transmit a signal to the controller. The controller controls the welding head to work through the signal.

[0042] Furthermore, the automatic filter welding system also includes a discharge baffle; the discharge baffle is fixed between the upper and lower plates by an eighth bracket and is located at the discharge station; one end of the discharge baffle is a fixed end connected to the eighth bracket and located outside the feeding tray, and the other end is a free end located inside the feeding tray; and the fixed end of the discharge baffle is after the discharge station, while the free end is inclined towards the inside of the feeding tray.

[0043] Furthermore, the control device includes switches, sensors, and a controller; the switches are used to turn the automatic filter welding system on and off; there are multiple sensors used to sense the feeding status at each workstation; the controller is used to receive signals from multiple sensors and control the actions of multiple motors or multiple cylinders.

[0044] Feeding sensors are installed at the feeding station, cutting sensors are installed at the cutting station, and welding sensors are installed at the welding station.

[0045] On the other hand, a screen production process is also provided, which adopts the automatic filter screen welding system of claim 1, including the following steps: S1, feeding the filter screen belt; S2, feeding the screen tube; S3, cutting the filter screen into pieces; S4, welding the filter screen onto the screen tube; S5, discharging the screen.

[0046] Furthermore, in step S1, the filter belt feeding includes the following steps:

[0047] Install the mesh belt reel onto the mesh belt shaft of the mesh belt frame;

[0048] Release one end of the filter belt from the belt reel, pass it under the clamping arm of the vertical pressing device, and then place it on the loading table of the cutting device;

[0049] The filter belt on the loading platform passes between the base of the conveyor and the filter belt fixing clamp, and then passes under the clamping clamp of the clamping assembly;

[0050] The mesh belt hangs freely from the end of the conveyor device, meaning that the cut filter mesh belt slides down from the end of the conveyor belt by gravity.

[0051] Furthermore, in step S2, the feeding of the screen tube is completed through the feed seat, including the following steps:

[0052] Place the screen tube on the feeding platform and push it horizontally to install the screen tube into the screen tube station of the screen tube conveyor plate;

[0053] The body of the screen tube can be snapped onto the arc of the screen tube station, and the lower edge of the boss can rest on the upper surface of the screen tube conveyor plate.

[0054] After the material is loaded, the feeding disc rotates and the conveyor screen tube enters the cutting station.

[0055] Furthermore, the filter screen conveyor cutting device cuts the filter screen pieces, including the following steps:

[0056] The conveyor system transports the filter belt;

[0057] The conveyor device was moved back to its original position and the filter belt was pressed tightly.

[0058] The cutting device cuts the filter belt and conveys the filter mesh pieces.

[0059] Furthermore, in step S4, the filter screen is welded onto the screen tube, including the following steps:

[0060] The lifting head of the pushing component passes through the screen tube station and enters the screen tube, lifting the screen tube into the cutting station so that the upper end of the screen tube contacts the filter screen cutting piece on the screen support ring.

[0061] The latch of the locking cylinder is inserted into the locking hole of the lifting cylinder to limit the lifting head of the lifting cylinder, thereby fixing the lifting head and making the screen tube more stable.

[0062] The welding head of the welding assembly moves downward to the mesh support ring in the cutting station under the drive of the welding cylinder, and welds the filter mesh cutting piece and the screen tube into shape.

[0063] The welding head of the welding assembly moves up and resets; the latch of the locking cylinder retracts and resets, releasing the locking function; the lifting cylinder moves down and resets, driving the welded screen tube back to the screen tube station of the feeding tray, completing the welding process.

[0064] After the welding process is completed, the feeding tray transports the welded screen bottle into the discharge station.

[0065] The beneficial effects of this invention are:

[0066] 1. The application of the filter screen belt conveyor cutting device enables lightweight filter screen materials that are prone to static electricity to be conveyed and cut in the form of a material belt in the automatic filter screen welding system. The filter screen belt conveyor cutting device and the feeding device work together to accurately transfer the cut filter screen pieces to the welding device for welding. This overcomes the problem of having to use ready-made filter screen pieces in the existing technology, and also overcomes problems such as failure to pick up filter screen pieces during transfer, transfer of multiple pieces, and incorrect placement of filter screen pieces. This improves work efficiency and reduces the scrap rate.

[0067] 2. The sensor setup greatly automates the entire welding process, improving work efficiency. When there is a screen tube at the screen station, the filter belt conveyor cutting device and welding device can perform cutting and welding operations. When there is no screen tube at the screen tube station, the filter belt conveyor cutting device and welding device do not work, effectively reducing scrap rate and saving raw materials.

[0068] 3. By integrating feeding, cutting, and welding functions into one device, the separate operation steps are completed automatically, effectively reducing manual intervention in welding work, making welding operation simple, avoiding safety accidents, and improving work efficiency. Attached Figure Description

[0069] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0070] Figure 1 This is a schematic diagram of conventional wire mesh welding equipment in the existing technology;

[0071] Figure 2 This is a schematic diagram of a screen tube in the prior art;

[0072] Figure 3 Schematic diagram of an automatic filter screen welding system;

[0073] Figure 4 Left view of the automatic filter screen welding system;

[0074] Figure 5 Front view of the automatic filter screen welding system;

[0075] Figure 6 Top view of an automatic filter screen welding system;

[0076] Figure 7 Schematic diagram of an automatic filter screen welding system;

[0077] Figure 8 Right view of the automatic filter screen welding system;

[0078] Figure 9 Schematic diagram of the feeding tray;

[0079] Figure 10 Schematic diagram of the feeding tray;

[0080] Figure 11 Schematic diagram of the filter screen sheet conveyor tray;

[0081] Figure 12 Schematic diagram of a screen tube conveyor plate;

[0082] Figure 13 Anti-adsorption baffles and mesh support rings

[0083] Figure 14 Schematic diagram of screen tube baffle;

[0084] Figure 15 Schematic diagram of the cutting device and conveying device;

[0085] Figure 16 Schematic diagram of the cutting device and conveying device;

[0086] Figure 17 Schematic diagram of the cutting device and conveying device;

[0087] Figure 18 Schematic diagram of the cutting device and conveying device;

[0088] Figure 19 Schematic diagram of the conveying device;

[0089] Figure 20 Schematic diagram of the conveying device;

[0090] Figure 21 Schematic diagram of the conveying device;

[0091] Figure 22 Schematic diagram of the conveying device;

[0092] Figure 23 Schematic diagram of welding equipment;

[0093] Figure 24 Schematic diagram of welding equipment;

[0094] Figure 25 Schematic diagram of welding equipment;

[0095] Figure 26 Schematic diagram of welding equipment;

[0096] Figure 27 Schematic diagram of discharge baffle;

[0097] in:

[0098] 1. Workbench; 2. Feeding device; 3. Filter mesh belt conveyor and cutting device; 4. Welding device; 5. Discharge baffle; 6. Control device; 7. Feeding seat; 8. Feeding tray; 9. Motor; 10. Filter mesh sheet conveyor tray; 11. Screen tube conveyor tray; 12. Mounting rod; 13. Conveying assembly; 14. Pressing assembly; 15. Limiting baffle; 16. Mesh sheet bearing ring; 17. Anti-adsorption baffle; 18. Sheet cutting station; 19. Screen tube station; 20. Feeding platform; 21. Screen tube baffle; 22. Mesh belt frame; 23. Vertical pressing device; 24. Cutting device; 25. Conveying device; 26. Mesh belt reel; 27. Mesh belt shaft; 28. Carrying platform; 29. ​​Cutting cylinder; 30. Cutting head; 31. Mounting platform; 32. Cutting hole; 33. Moving cylinder; 34. First base; 35. Clamping device Position; 36. Mesh belt fixing clamp; 37. Groove; 38. Clamping part; 39. Clearance part; 40. First base; 41. Second base; 42. Clamping clamp; 43. Mounting component; 44. Rotating arm; 45. Clamping arm; 46. Welding assembly; 47. Pushing assembly; 48. Welding head; 49. Lifting cylinder; 50. Lifting head; 51. Lifting position; 52. Locking cylinder; 53. Locking hole; 54. Latch; 55. Welding cylinder; 56. Switch; 57. Controller; 62. Second base; 63. Shaft; 64. Gantry frame; 65. First clamping cylinder; 66. Second clamping cylinder; 67. First bracket; 68. Second bracket; 69. Third bracket; 70. Fourth bracket; 71. Fifth bracket; 72. Sixth bracket; 73. Seventh bracket; 74. Eighth bracket; 75. Screen tube. Detailed Implementation

[0099] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0100] like Figure 3-8As shown, an automatic filter screen welding system is used to weld filter screen pieces to the end of a screen tube 75. The system includes: a workbench 1, which is a table with a supporting plane; a feeding device 2, a filter screen belt conveying and cutting device 3, a welding device 4, a discharge baffle 5, and a control device 6, all mounted on the supporting plane.

[0101] The feeding device 2 includes a feeding tray 8, a feeding seat 7 and a motor 9. The feeding tray 8 is a circular double-layer structure, with the upper layer being a filter screen cutting sheet conveying tray 10 and the lower layer being a screen tube conveying tray 11. The two layers are fixedly connected by a mounting rod 12.

[0102] The filter screen conveyor cutting device 3, welding device 4, and discharge baffle 5 are arranged sequentially around the feeding tray 8.

[0103] The filter belt conveyor and cutting device 3 is located behind the feed seat 7 and is used to place, convey and cut the filter belt.

[0104] The welding device 4 is located behind the filter screen conveyor cutting device 3 and includes a welding assembly 46 and a pushing assembly 47, used to weld the filter screen pieces to the end of the screen tube 75.

[0105] The control device 6 includes a switch 56, multiple sensors and a controller 57. The multiple sensors are placed in different workstations, and the controller collects the signals from the multiple sensors and performs the work.

[0106] The discharge baffle 5 is located after the welding device 4 and is used for discharging the welded screen bottle.

[0107] like Figure 2 As shown, this embodiment uses the screen bottle disclosed in CN206881733U as an example for illustration. It should be noted that the screen bottle is the finished product after welding the screen tube 75. That is, a round tube without a welded filter screen is called the screen tube 75, and the screen tube 75 is formed after the filter screen is welded to its ends. Specifically, the screen tube 75 is a cylindrical tube with openings at both ends. The screen tube 75 includes a tube body and a protrusion extending from the tube body. The tube body of the screen tube 75 can be snapped onto the workstation.

[0108] like Figure 9-13 As shown, the feeding tray 8 is fixed to the workbench 1 by the first bracket 67. The filter screen piece conveying tray 10 and the screen tube conveying tray 11 are arranged in parallel, and the distance between the two layers is greater than the height of the screen tube 75. Several cutting stations 18 are provided on the filter screen piece conveying tray 10, and the cutting stations 18 are evenly arranged on the outer periphery of the filter screen piece conveying tray 10. The cutting stations 18 are round holes with a diameter slightly larger than the diameter of the screen tube 75, and are used to place and convey the cut filter screen pieces.

[0109] It is understandable that the upper filter screen sheet conveying disc 10 and the lower screen tube conveying disc 11 are connected into a whole by the mounting rod 12. The filter screen sheet conveying disc 10 has no power, and the force for its rotation comes only from the screen tube conveying disc 11. The screen tube conveying disc 11 is connected to the motor 9, and there is no other external force to hinder the rotation of the filter screen sheet conveying disc 10. Thus, the filter screen sheet conveying disc 10 and the screen tube conveying disc 11 rotate completely synchronously.

[0110] The feeding tray 8 rotates, causing the screen tube 75 it transports to pass sequentially through the feeding station, cutting station, welding station, and discharging station. The feeding station is connected to the feeding seat 7. After the screen is cut at the cutting station, it enters the feeding tray 8. The screen tube 75 and the filter screen pieces are welded at the welding station. After welding, the screen bottle is discharged at the discharging station.

[0111] Furthermore, such as Figure 10 As shown in Figure 13, a mesh support ring 16 is provided in the cutting station 18 for placing the filter mesh cutting pieces. The mesh support ring 16 is an annular protrusion provided in the cutting station 18, with a ring width of 0.05-1mm, preferably 0.1mm. The inner diameter of the mesh support ring 16 is the same as the diameter of the filter mesh cutting piece, and slightly larger than the diameter of the screen tube 75.

[0112] Understandably, the diameter of the filter mesh cut piece is slightly larger than the diameter of the screen tube 75. During welding, the diameter of the filter mesh cut piece and the diameter of the screen tube 75 must match within a certain range. If the diameter of the filter mesh cut piece is smaller than the diameter of the screen tube 75, it will be too small to weld onto the wall of the screen tube 75. If the diameter of the filter mesh cut piece is equal to the diameter of the screen tube 75, high precision is required for the welding equipment, and because the filter mesh cut piece is made of a soft material, even high-precision equipment cannot guarantee completely accurate placement. If the diameter of the filter mesh cut piece is much larger than the diameter of the screen tube 75, the finished screen will inevitably have too much filter mesh on the outside of the screen tube 75, affecting the ease of use and potentially interfering with the filtration of biological specimens. Therefore, using a filter mesh cut piece with a diameter slightly larger than the diameter of the screen tube 75 satisfies the requirement for relatively precise positioning, resulting in a screen that meets quality standards, while avoiding excess filter mesh that could affect the quality of the finished screen.

[0113] Understandably, because the filter mesh pieces are lightweight, if they are placed directly on top of the screen tube 75 after cutting, they are easily moved by airflow during the transfer to the welding station by the rotating feed tray 8, causing displacement or even drifting away from the screen tube 75, leading to failure in subsequent welding processes. By setting up a filter mesh piece conveyor tray 10, the cut filter mesh pieces are transferred to the cutting station 18 of the filter mesh piece conveyor tray 10. During the continued transfer to the welding station, the influence of airflow can be effectively avoided. Moreover, since the filter mesh piece conveyor tray 10 and the screen tube conveyor tray 11 rotate completely synchronously, the filter mesh pieces can be stably and synchronously transferred to the welding station with the screen tube 75, allowing the welding process to proceed smoothly.

[0114] Furthermore, such as Figure 10 As shown in Figure 13, an anti-adsorption baffle 17 is provided on the upper part of the cutting station 18. The anti-adsorption baffle 17 is made of elastic material, is circular, and has an inner diameter slightly smaller than the diameter of the cutting station 18. By setting the anti-adsorption baffle 17, the filter screen cutting pieces can be successfully retained in the cutting station 18, thus greatly reducing the possibility of cutting piece loss and significantly reducing the defect rate during large-scale production.

[0115] Understandably, the cut filter mesh pieces, due to their lightweight material, are prone to static electricity and are attracted to the cutting head 30 of the filter mesh conveyor cutting device 3. When the cutting head 30 moves downward to convey the filter mesh pieces into the cutting station 18, the static attraction causes the filter mesh to stick to the cutting head 30 instead of falling into the cutting station 18, resulting in failed placement of the filter mesh pieces. However, with the anti-adsorption baffle 17 installed at the upper part of the cutting station 18, when the cutting head 30 moves downward, it squeezes the anti-adsorption baffle 17, deforming it and allowing it to pass through its inner hole, carrying the cut filter mesh pieces into the cutting station 18. Subsequently, the cutting head 30 moves upward, and because the anti-adsorption baffle 17 is elastic, the cutting head 30 can smoothly leave the anti-adsorption baffle 17, while the lightweight filter mesh pieces are blocked by the anti-adsorption baffle 17 and remain on the mesh support ring 16 of the cutting station 18.

[0116] like Figure 12 As shown, the screen tube conveyor plate 11 is provided with screen tube stations 19. The number of screen tube stations 19 is the same as the number of cutting station 18, and they are evenly arranged on the outer periphery of the screen tube conveyor plate 11. The positions of the screen tube stations 19 and the cutting station 18 are vertically corresponding and concentric. The screen tube station 19 is an arc with the opening facing outward. The diameter of the arc is slightly larger than the diameter of the screen tube 75 body, and it is used to place the screen tube 75.

[0117] It is understandable that the screen tube station 19 and the cutting station 18 are vertically aligned and concentric. That is, when the screen tube 75 is placed in the screen tube station 19, it can also remain concentric with the filter screen cutting piece placed in the cutting station 18. The diameter of the filter screen cutting piece is slightly larger than the diameter of the screen tube 75. This concentricity ensures that the edge of the filter screen cutting piece extends beyond the sidewall of the screen tube 75, thereby guaranteeing successful welding and the quality of the finished product.

[0118] Specifically, since the screen tube conveying disc 11 and the filter screen cutting disc conveying disc 10 are fixed together and rotate synchronously, it can be ensured that the screen tube 75 and the filter screen cutting disc can enter the welding station synchronously. Moreover, the screen tube station 19 used to convey the screen tube 75 and the cutting disc station 18 used to carry the filter screen cutting disc are corresponding and concentric in the vertical direction. Therefore, the filter screen cutting disc and the screen tube 75 are also concentric, which can ensure the success of welding and the quality of the finished product.

[0119] Understandably, the screen tube station 19 is an outward-facing arc, which facilitates the placement of the screen tube 75 into the feeding station. That is, because the screen tube station 19 is an outward-facing arc, the screen tube 75 can be pushed horizontally into the screen tube station 19, without needing to place it from above the screen tube conveyor plate 11. As can be seen from the structure of the feeding plate 8, horizontally pushing the screen tube 75 in is simpler and easier than placing it from above.

[0120] like Figure 10 As shown, the feeding seat 7 is located on one side of the feeding tray 8 and is fixed to the workbench 1 by the second bracket 68. It includes a feeding platform 20, which is located at the top of the second bracket and is U-shaped with a horizontal opening. The width of the feeding platform 20 matches the diameter of the screen tube 75. The feeding platform 20 holds the screen tube 75, and by pushing it horizontally along the opening, the screen tube 75 can be fed into the screen tube station 19 of the screen tube conveying tray 11.

[0121] Understandably, the feeding platform 20 ensures that the height and width of the screen tube 75 are aligned with the station before entering the workstation, allowing it to enter the feeding tray 8 station accurately and quickly, thus ensuring the stability of the entire process of transporting and welding the screen tube 75.

[0122] Specifically, assuming the screen tube 75 includes a tube body and a boss protruding from the tube body, the distance from the boss to the threaded end opening is H1, and the distance between the bottom of the U-shaped platform and the upper surface of the screen tube conveying disc 11 is no greater than H1, ideally infinitely close to H1. The arc diameter of the screen tube station 19 is slightly larger than the tube body diameter of the screen tube 75, but smaller than the boss of the screen tube 75. When feeding the screen tube 75, first place the threaded end downwards on the feeding platform 20, and push it horizontally along the plane of the feeding platform 20 towards the opening direction of the screen tube station 19 to push the screen tube 75 into the screen tube station 19, while the boss of the screen tube 75 just abuts against the upper surface of the screen tube conveying disc 11. The screen tube 7512 is secured to the tube body of the screen tube station 19 by the arc-shaped receiving space, and the protrusion of the screen tube 75 is supported by the upper surface of the screen tube conveying plate 11. The two work together to ensure that the screen tube 75 is stably placed in the screen tube station 19.

[0123] Furthermore, a feed sensor is installed at the feeding station to detect the feeding status of the screen tube 75 and transmit a signal to the controller 57.

[0124] Specifically, the feed sensor is fixedly installed above or below the feed station to monitor whether the screen tube 75 transmits a signal.

[0125] Furthermore, such as Figure 10 As shown in Figure 14, a screen tube baffle 21 is provided along the edge of the screen tube conveying disc 11. The shape of the screen tube baffle 21 matches the shape of the screen tube conveying disc 11 and is arc-shaped. It is provided along one side of the work station and is located between the feed seat 7 and the discharge baffle 5. It is used to prevent the screen tube 75 from slipping during the conveying process and to avoid welding failure.

[0126] Understandably, the combination of the feeding platform 20, the screen tube baffle 21, and the screen tube station 19 facilitates material feeding while preventing the tube from falling off. Specifically, the arc-shaped opening structure of the screen tube station 19 makes feeding the screen tube 75 more convenient, but also increases the risk of the screen tube 75 falling off during transportation. The feeding platform 20 enables fast and accurate feeding of the screen tube 75, saving time. The screen tube baffle 21 eliminates the risk of the screen tube 75 falling off during transportation. In other words, the combination of the above structures solves the problems of difficult and slow feeding while ensuring the stability of material transportation.

[0127] like Figure 4 As shown in Figures 5 and 7, the motor 9 is mounted on the workbench 1 and intermittently transmits power to the feeding tray 8.

[0128] Specifically, the motor 9 is located below the feeding tray 8. The feeding tray 8 is connected to the motor 9 via a rotating shaft. The motor 9 can drive the feeding tray 8 to rotate intermittently via the rotating shaft, so that the screen tube 75 rotates at a fixed angle each time, and enters the cutting station, welding station and discharge station in sequence from the initial feeding station.

[0129] Understandably, processes such as feeding, cutting, and welding all require a certain amount of time to complete. Therefore, the process of the feeding tray 8 conveying the screen tube 75 and the filter screen pieces also needs to be set to an intermittent operation mode. Specifically, when the feeding tray 8 stops rotating, feeding, cutting, and welding operations can be performed simultaneously or separately. After the feeding, cutting, and welding operations are completed, the motor 9 drives the feeding tray 8 to rotate, conveying the screen tube 75 and / or filter screen pieces that have been positioned to the next workstation.

[0130] like Figure 6 As shown, the filter belt conveying and cutting device 3 includes a belt frame 22, a pressure device 23, a cutting device 24, and a conveying device 25, which are used to place, cut, and convey the filter belt.

[0131] The mesh belt frame 22, the vertical pressing device 23, the cutting device 24 and the conveying device 25 are arranged in a straight line on one side of the feeding tray 8, and the straight line is tangent to the feeding tray 8.

[0132] Understandably, since the filter belt needs to be kept flat during cutting, the simplest way is to set the belt frame 22, the pressure device 23, the cutting device 24 and the conveying device 25 in a straight line, so as to ensure that the filter belt will not bend when passing through the above devices and will remain flat.

[0133] Understandably, since the cutting station corresponds vertically to the cutting station 18 of the feeding tray 8, the cutting device 24 must be set close to the feeding tray 8. Therefore, the straight line containing the mesh belt frame 22, the vertical pressure device 23 and the conveying device 25 must pass through the cutting device 24 and be tangent to the feeding tray 8 in order to ensure that the screen belt passes through the cutting station flat and without bending, and can complete the cutting operation smoothly.

[0134] Understandably, after the filter belt is released from the belt frame 22, it first passes through the pressure device 23, enters the cutting device 24, and then passes through the conveying device 25. The cut filter belt waste finally hangs freely from the end of the conveying device 25, that is, the cut filter belt waste slides down from the end of the conveyor belt by gravity.

[0135] like Figure 4As shown in Figure 7, the mesh belt frame 22 is used to place the mesh belt reel 26, and includes a third bracket 69 and a mesh belt shaft 27. The third bracket 69 is fixed on the workbench 1, and the mesh belt shaft 27 is located on the upper part of the third bracket 69. The mesh belt shaft 27 is used to hold the mesh belt reel 26, and the mesh belt reel 26 can rotate on the mesh belt shaft 27 to release the filter mesh belt.

[0136] Understandably, the mesh belt reel 26 is formed by winding the filter mesh belt onto a spool. The spool has a hole in its center, through which the mesh belt reel 26 can be mounted on the mesh belt shaft 27 of the mesh belt frame 22. The mesh belt reel 26 can rotate on the mesh belt shaft 27 to release the filter mesh belt. The mesh belt shaft 27 is perpendicular to the tangent of the feed disc 8, so that the released filter mesh belt can pass through the tangent of the feed disc 8, ensuring that the released filter mesh belt passes smoothly and without bending along the straight line formed by the pressure device 23, the cutting device 24, and the conveying device 25.

[0137] like Figure 7 As shown in Figures 15-18, the cutting device 24 is located at a cutting station on one side of the feeding tray 8, and is fixed to the first base 40 by the fourth bracket 70. The first base 40 is fixed to the worktable 1 by the fifth bracket 71. The cutting device 24 includes a material carrier 28, a cutting cylinder 29, and a cutting head 30.

[0138] The loading platform 28 is fixedly mounted on the first base 40, positioned above the filter screen sheet conveyor tray 10 and below the cutting head 30. The loading platform 28 is elongated and extends along the tangent of the feeding tray 8. The loading platform 28 serves as the carrier for the filter screen belt conveyor. The portion of the loading platform 28 closest to the belt frame 22 is slightly wider than the width of the filter screen belt. The loading platform 28 has circular cutting holes 32.

[0139] The cutting head 30 is mounted on the cutting cylinder 29, which is fixedly installed inside the fourth bracket. The cutting head 30 can move up and down under the action of the cutting cylinder 29. The cutting head 30 is a round tube or cylinder with a diameter slightly larger than that of the welding screen tube 75. The cutting head 30 corresponds vertically to the cutting hole 32 on the material carrier 28.

[0140] It is understandable that the cutting head 30 and the cutting hole 32 are positioned and matched in size, and the cutting process of the filter belt is completed by the interlocking action between the outer edge of the cutting head 30 and the inner edge of the cutting hole 32.

[0141] Furthermore, after the cutting is completed, the cutting head 30 can pass through the inside of the cutting hole 32 and extend into the cutting station 18 of the filter screen cutting sheet conveying tray 10 to send the cut filter screen cutting sheet into the cutting station 18.

[0142] As one possible implementation, the cutting head 30 is made of stainless steel.

[0143] Furthermore, a limiting baffle 15 is provided at one end of the loading platform 28 near the mesh belt frame 22. There are two limiting baffles 15, which are installed on both sides of the loading platform 28 respectively. The limiting baffle 15 is composed of two vertical strip-shaped components, which can be integrally formed. One side of one strip is fixed to one side of the loading platform, and the other strip is parallel to the loading platform and at a distance of 0.5mm from the loading platform.

[0144] Understandably, since the loading platform 28 is tangent to the feeding tray 8 in the length direction, the filter belt can be stretched straight onto the loading platform after being released from the mesh belt tray under the action of force, thereby ensuring the flatness of the filter belt on the loading platform, ensuring that the cut filter screen does not have wrinkles, and ensuring that the intermittent conveying distance is consistent.

[0145] Understandably, the filter mesh pieces must be perfectly round because they need to be welded to the round end of the screen tube 75. Simultaneously, the intermittent conveying distance of the filter belt must be consistent to prevent cutting into already cut waste material due to a short conveying distance. Therefore, the filter belt must be flat and wrinkle-free when being cut at the cutting position to obtain perfectly round pieces. A flat, wrinkle-free filter belt is also a prerequisite for ensuring consistent intermittent conveying distances.

[0146] In other words, because the mesh belt frame 22 ensures that the filter mesh belt is released along the tangent of the feeding tray 8 in the installation direction, and the loading platform 28 is also set along the tangent of the feeding tray 8 in the length direction, it can be ensured that the filter mesh belt will not be bent in the entire working space from the mesh belt frame 22 to the loading platform 28.

[0147] Understandably, the setting of the limit baffle 15 can effectively limit the filter belt and prevent the filter belt on the loading platform from shifting position.

[0148] Understandably, the diameters of the cutting head 30 and the cutting hole 32 are selected based on the diameter of the filter screen cut piece. Specifically, the diameter of the screen tube 75 is selected according to actual needs; as mentioned above, the diameter of the filter screen cut piece needs to be slightly larger than the diameter of the screen tube 75, therefore, the diameter of the filter screen cut piece can be determined based on the diameter of the screen tube 75. Since the filter screen cut piece is cut by the interlocking of the cutting head 30 and the cutting hole 32, the diameters of the cutting head 30 and the cutting hole 32 are selected based on the diameter of the filter screen cut piece.

[0149] Understandably, by setting the dimensions of the cutting head 30 and the cutting hole 32, the filter belt can be cut into filter mesh pieces that match the dimensions of the screen tube 75. Here, "matching dimensions" means that the diameter of the filter mesh piece is slightly larger than the diameter of the screen tube 75.

[0150] Understandably, the cutting device 24 can directly cut the filter belt into filter sheets of appropriate size, saving the manual placement of filter sheets required by traditional welding machines. It is also more automated and convenient than automatic welding machines that require the use of pre-made filter sheets.

[0151] Other automated welding machines typically place a stack of filter screen pieces in a container and use adsorption to transfer them. This method is prone to failure and picking up multiple pieces, both of which can lead to welding failures and the production of defective or scrap products. In contrast, this embodiment incorporates a cutting device 24, which produces only one filter screen piece at a time. This piece is then immediately pushed into the cutting station 18 by the cutting head 30. This production and feeding method differs from other automated welding machines, avoiding the drawbacks of adsorbing filter screen pieces and ensuring that only one filter screen piece is accurately delivered to the cutting station 18 each time. This guarantees successful subsequent welding.

[0152] During actual cutting, the cutting head 30 is driven by the cutting cylinder 29 to the cutting hole 32 and engages with the cutting hole 32 to cut the filter mesh belt placed on the cutting hole 32. After cutting, the cutting head 30 continues to move forward and passes through the cutting hole 32 into the cutting station 18 on the cutting sheet conveyor. It pushes the cut filter mesh sheet onto the mesh support ring 16 in the cutting station 18. Then the cutting head 30 moves up and returns to its original position, completing one cutting and feeding action.

[0153] Furthermore, a cutting sensor is installed at the cutting station to detect whether there is a screen tube 75 in the screen tube station 19 located above the cutting station, and transmits a signal to the controller 57, which controls the cutting head to work through the signal.

[0154] Understandably, when a screen tube 75 is detected in the screen tube 75 station, the cutting head moves toward the loading table to cut the filter belt and form a circular filter sheet; when there is no screen tube 75 in the screen tube 75 station, the cutting head remains stationary.

[0155] Specifically, the cutting sensor is fixedly installed above or below the cutting station to monitor whether the screen tube 75 transmits a signal.

[0156] like Figure 19-22As shown, the conveying device 25 includes a conveying assembly 13 and a clamping assembly 14. The conveying assembly 13 includes a mounting platform 30, a first base 34, a second base 62, a shaft 63, a gantry frame 64, a moving cylinder 33, a first clamping cylinder 65, and a mesh belt fixing clamp 36. The clamping assembly 14 includes a second base 41, a second clamping cylinder 66, and a clamping clamp 42.

[0157] The mounting platform 30 of the conveying component 13 is long and narrow, and is set along the length of the loading platform. One end of the mounting platform 30 is fixed on the first base 40, and is located above the filter screen cutting sheet conveying tray 10 and below the loading platform 28.

[0158] The second base 62 is fixedly installed at the other end of the mounting platform 30.

[0159] The portion of the loading platform 28 that is away from the mesh belt frame 22 has a width smaller than the width of the filter mesh belt but larger than the diameter of the filter mesh sheet.

[0160] The shafts are arranged parallel to the length of the loading platform 28 and are located on both sides of the mounting platform 30. The two ends of the shafts are connected to the first base 40 and the second base 62. The two shafts 63 can ensure that the mounting platform 30 and the loading platform 28 are between the two shafts 63 in the width direction, and the two shafts 63 can ensure that the two shafts 63 are between the mounting platform 30 and the loading platform 28 in the height direction.

[0161] The base 34 has through holes on both sides. The conveying assembly 13 is installed on the shafts 63 on both sides of the mounting platform 30 through the through holes on both sides of the base 34. The base 34 can move along the shafts 63.

[0162] The base has a movable cylinder 33, which can drive the conveying component 13 to move along the axis, so that the conveying component 13 can reciprocate in the length direction of the loading platform 28 to realize the intermittent conveying of the filter belt.

[0163] The base 34 has a flat upper surface, two clamping positions 35 on both sides, and a groove 37 in the middle. The size of the groove 37 matches the width of the loading platform 28, allowing the loading platform 28 to pass through. After the loading platform 28 is placed in the groove 37, the upper surface of the loading platform 28 is flush with the upper surface of the mounting platform 30.

[0164] The gantry frame 64 is connected to the first base 34. The gantry frame 64 is equipped with a first pressing cylinder 65 that can move up and down. The lower end of the first pressing cylinder 65 is equipped with a mesh belt fixing clamp 36.

[0165] Understandably, the mesh belt fixing clamp 36 can move up and down under the drive of the first clamping cylinder 65 to clamp and loosen the filter mesh belt.

[0166] The mesh belt fixing clamp 36 is provided with a clamping part 38 and a clearance part 39 at the end facing the first base 34. There are two clamping parts 38, and the clearance part 39 is between the two clamping parts. The width of the clearance part 39 is not less than the width of the material loading platform 28, and the length of the mesh belt fixing clamp 36 is not greater than the width of the filter mesh belt.

[0167] The second base 41 of the clamping assembly 14 is fixedly mounted on the mounting platform 30. The second base 41 has through holes on both sides; the clamping clamp 42 has mounting parts 43 on both sides, the mounting parts 43 correspond to the holes on both sides of the base 41, and the mounting parts 43 are connected to the second clamping cylinder 66 after passing through the holes on both sides of the base 41.

[0168] Understandably, the clamping clamp 42 can move up and down under the drive of the second clamping cylinder 66; when the clamping clamp 42 moves down, it contacts the loading platform 28, and the clamping clamp 42 and the loading platform 28 together fix the filter screen belt on the loading platform 28; when the clamping clamp 42 moves up, it leaves the loading platform 28 and releases the filter screen belt on the loading platform 28.

[0169] Specifically, as one implementation method, the clamping clamp 42 is arched.

[0170] Understandably, the filter belt passes between the loading platform 28 and the filter belt fixing clamp 36, meaning the filter belt is above the base 34. The filter belt fixing clamp 36 moves downwards under the action of the first clamping cylinder 65, causing the two clamping parts 38 to contact the two clamping positions 35 of the base 34, tightly clamping the filter belt. Then, the conveying assembly 13 moves forward a set distance under the action of the moving cylinder 33, moving the clamped filter belt forward a set distance as well. Then, the filter belt fixing clamp 36 moves upwards away from the base 34 under the action of the first clamping cylinder 65, releasing the filter belt. Then, the clamping assembly 14 clamps the filter belt, and the conveying assembly 13 moves backwards to reset under the action of the moving cylinder 33. After resetting, the conveying assembly 13 clamps the filter belt again, and the clamping assembly 14 releases the filter belt.

[0171] Understandably, after the clamping component 14 clamps the filter belt, the conveying component 13 moves backward to reset, which can prevent the conveyed filter belt from moving backward along with the conveying component 13 due to friction when the conveying component 13 moves backward.

[0172] Understandably, after the conveying component 13 moves back to its reset position, it can tighten the filter belt again to fix and tighten the filter belt, so that the cutting device 24 can successfully complete the cutting work.

[0173] Understandably, the conveying device 25 is used to make the filter belt pass through the cutting holes 32 smoothly and intermittently. Each time the conveying device 25 moves the filter belt forward, the cutting device 24 performs one cutting operation.

[0174] Furthermore, the distance that the filter belt can move forward by each reciprocating motion of the conveying device 25 is not less than the diameter of the cutting head 30 and not more than twice the diameter of the cutting head 30.

[0175] Understandably, each reciprocating motion of the conveyor 25 transports the cut filter belt out of the cutting device 24 and introduces a new filter belt into it. If the distance transported by the conveyor 25 in one stroke is less than the diameter of the cutting head 30, the already cut portion of the filter belt will not completely leave the cutting head 30, causing the next cutting step to continue cutting into the already cut portion, resulting in incomplete filter sheets and ultimately, defective products. If the distance transported by the conveyor 25 in one stroke is more than twice the diameter of the cutting head 30, a large amount of uncut portion of the filter belt will also be transported out of the cutting device 24, resulting in waste of the filter belt. Therefore, the distance the conveyor 25 moves the filter belt forward in one stroke is no less than the diameter of the cutting head 30 and no more than twice the diameter of the cutting head 30, ensuring production quality while saving raw materials.

[0176] like Figure 6-7 As shown, the vertical pressure device 23 is disposed between the cutting device 24 and the mesh belt frame 22.

[0177] The pressure device 23 is fixed to the workbench 1 by the sixth bracket 72. It includes a rotating arm 44 and a pressing arm 45. The rotating arm 44 and the pressing arm 45 are fixedly connected and are L-shaped. The upper end of the rotating arm 44 is connected to the shaft of the sixth bracket 72 and the rotating arm can rotate. The pressing arm 45 is in a horizontal state and can rotate with the rotating arm 44. It usually hangs down naturally under the action of gravity and presses horizontally on the filter belt. It works with the conveying device 25 to fix the filter belt and make the section of the filter belt on the loading table 28 have a certain tension for easy cutting.

[0178] Understandably, the pressure device 23 always presses against the filter belt. After the conveying component 13 of the conveying device 25 moves back and resets, it presses the filter belt again, working in conjunction with the pressure device 23 to press the section of the filter belt on the loading platform 28, thereby fixing the filter belt and ensuring that the section of the filter belt on the loading platform 28 has a certain tension. That is, when the conveying device 25 presses the filter belt, since the pressing arm 45 can rotate, under the action of gravity, the pressing arm 45 can pull down the slack part of the filter belt on the loading platform, thereby maintaining a certain tension of the filter belt. This ensures that the filter belt remains stable when the cutting device 24 cuts the filter belt, facilitating the smooth cutting process and producing qualified filter screen pieces. It also ensures that the cutting does not fail due to the slack of the filter belt. After the cutting is completed, the conveying device 25 continues to transport the filter belt.

[0179] Understandably, the mesh belt frame 22, cutting device 24, conveying device 25, and vertical pressing device 23 work together to complete the conveying, cutting, and conveying of the filter mesh belt and filter mesh pieces. The mesh belt frame 22 houses the mesh belt reel 26 and allows the mesh belt to be released freely. The mesh belt frame 22 is cleverly oriented so that the released filter mesh belt can enter the cutting device 24 flat and without bending. The conveying device 25 intermittently transports the filter mesh belt through the cutting device 24, and the intervals between transports are the time when the cutting device 24 performs the cutting operation. Under the combined pressure of the conveying device 25 and the vertical pressing device 23, the cutting device 24 successfully cuts the filter mesh belt and conveys the filter mesh pieces into the cutting station 18.

[0180] The filter screen conveyor and cutting device 3 prepares filter screen pieces, including the following steps:

[0181] S31, Conveying device 25 conveys the filter belt;

[0182] S32, the conveyor 25 moves back to its original position and presses the filter belt tight;

[0183] S33, the cutting device 24 cuts the filter belt and conveys the filter sheet.

[0184] Steps S31, S32 and S33 are repeated in a cycle. That is, after the conveying device 25 conveys the filter belt a set distance, the conveying device 25 moves back to its original position and presses the filter belt tightly. Then the cutting device 24 cuts the filter belt, completing one cycle. The filter belt continues to be conveyed, pressed and cut to complete the next cycle, and so on.

[0185] In step S31, the conveying of the filter belt is completed by the conveying device 25. During operation, the filter belt passes between the base 34 and the filter belt fixing clamp 36. Driven by the first pressing cylinder 65, the filter belt fixing clamp 36 moves downward to contact the two clamping positions 35 of the base 34, clamping the filter belt. Then, driven by the moving cylinder 33, the conveying device 25 moves forward a set distance, moving the clamped filter belt forward a set distance together. Then, driven by the first pressing cylinder 65, the filter belt fixing clamp 36 moves upward away from the base 34, releasing the filter belt.

[0186] Understandably, the filter belt conveying process ensures that the belt is flat and passes through the cutting hole 32 at a set speed. Each reciprocating motion of the conveying device 25 causes the filter belt to move forward a distance that is not less than the diameter of the cutting head 30 and not more than twice the diameter of the cutting head 30.

[0187] During step S32, the clamping clamp 42 of the clamping assembly 14 moves downward under the drive of the second clamping cylinder 66, contacting the loading platform 28. The clamping clamp 42 and the loading platform 28 together clamp the filter screen belt on the loading platform 28. Then, the conveying device 25 moves backward and resets under the drive of the moving cylinder 33. The filter screen belt fixing clamp 36 moves downward again to clamp the filter screen belt. Then, the clamping assembly 14 releases the filter screen belt. The vertical pressing device 23 keeps pressing on the filter screen belt. Therefore, the conveying device 25 and the vertical pressing device 23 work together to press the filter screen belt that has been conveyed to the position, so that the part of the filter screen belt on the loading platform 28 maintains a relative tension, thereby keeping it flat, so that the subsequent cutting process can be completed smoothly, and ensuring that qualified filter screens are cut out.

[0188] In step S33, the cutting of the filter belt is completed by the cutting device 24. During operation, the cutting head 30 is driven by the cutting cylinder 29 to the cutting hole 32 and engages with the cutting hole 32 to cut the filter belt placed on the cutting hole 32. After the cutting is completed, the cutting head 30 continues to move forward and passes through the cutting hole 32 into the cutting station 18 on the cutting sheet conveyor. It pushes the cut filter sheet onto the mesh support ring 16 in the cutting station 18. Then the cutting head 30 moves up and returns to its original position, completing one cutting of the filter belt and feeding of the filter sheet.

[0189] Step S33, the cutting device 24, cuts the filter belt and conveys the filter mesh pieces. Each time, the filter belt can be directly cut into a filter mesh piece of appropriate size. After each cut, the cut filter mesh piece is immediately transferred to the cutting station 18. This saves the process of manually placing the filter mesh pieces required by traditional welding machines, and also avoids the disadvantages of other automated welding machines that are prone to failure to pick up the filter mesh pieces or pick up multiple pieces when transferring the filter mesh pieces.

[0190] like Figure 23-26 As shown, the welding device 4 includes a welding assembly 46 and a feeding assembly 47. The welding assembly 46 includes a seventh support 73, a welding head 48, and a welding cylinder 55, while the feeding assembly 47 includes a lifting cylinder 49 and a lifting head 50.

[0191] The welding assembly 46 is located above the welding station of the feeding tray 8 and is used to weld the filter screen pieces to the end of the screen tube 75. The welding station is the station after the cutting station. The welding cylinder 55 is mounted on the worktable 1 via the seventh bracket 73. The welding head is mounted on the welding cylinder 55, which is fixed to the top of the seventh bracket 73, and can be controlled by the welding cylinder 55 to move up and down.

[0192] Understandably, the welding head 48 is vertically aligned with the screen tube station 19 on the feeding tray 8. Driven by the welding cylinder 55, the welding head 48 moves downwards to the mesh support ring 16, contacts the filter screen piece, and welds the filter screen piece to the filter tube using ultrasonic welding. The welding head can also employ other welding methods, such as thermoforming welding or laser welding.

[0193] The feeding assembly 47 is located below the feeding tray 8 and is fixedly installed on the worktable 1. The feeding assembly 47 includes a lifting cylinder 49 and a lifting head 50. The lifting head 50 is installed above the lifting cylinder 49 and can be controlled by the lifting cylinder to move up and down.

[0194] Understandably, the lifting head 50 can pass through the screen tube station 19 and enter the screen tube 75, lifting the screen tube 75 into the cutting station 18, so that the upper end of the screen tube 75 contacts the filter screen cutting piece on the screen support ring 16, which facilitates welding by the welding head 48.

[0195] It is understandable that the feeding component can also be other devices that can achieve the lifting function. Any device that can move the screen tube 75 to the screen tube 75 station is within the protection scope of this embodiment.

[0196] Furthermore, the lifting head 50 at the top of the lifting cylinder 49 is frustum-shaped. The diameter of the end of the frustum is less than or equal to the inner diameter of the screen tube 75, and the diameter of the middle part of the frustum is greater than the inner diameter of the screen tube 75. The part connecting the middle part and the end of the frustum forms the lifting position 51, which is in contact with the screen tube 75.

[0197] Specifically, the lifting mechanism can be a raised platform or a smooth slope, as long as it can provide lifting force.

[0198] It is understandable that the distance between the lifting position 51 and the end surface of the frustum is less than the height of the screen tube 75.

[0199] Understandably, the lifting head 50 of the lifting cylinder 49 rises into the screen tube 75. When the lifting position 51 of the lifting head 50 abuts against the lower end opening of the screen tube 75, the lifting head 50 drives the screen tube 75 to continue rising until the upper end opening of the screen tube 75 reaches the mesh support ring 16 and stops. At this time, the upper end opening of the screen tube 75 abuts against the filter mesh piece, which facilitates the welding head 48 to weld the filter mesh piece onto the screen tube 75 in the next welding process.

[0200] As another possible implementation, the pushing assembly 47 also includes a locking cylinder 52. The locking cylinder 52 is fixed to the body of the lifting cylinder 49. The locking cylinder 52 has a latch 54 at its end, and the lifting head of the lifting cylinder 49 is provided with a locking hole 53, into which the latch 54 can be inserted.

[0201] Specifically, after the lifting cylinder 49 lifts the screen tube 75 into position, the latch 54 of the locking cylinder 52 is inserted into the locking hole 53 of the lifting cylinder 49. The latch limits the lifting head of the lifting cylinder 49, thereby fixing the lifting head, making the screen tube 75 more stable, and improving the success rate and accuracy of welding.

[0202] After the welding work is completed, the locking cylinder 52 retracts and resets, and the latch 54 disengages from the locking hole 53 of the lifting cylinder 49, releasing the locking function. The lifting cylinder 49 moves down and resets, driving the screen tube 75 back to the screen tube station 19 of the feeding tray 8.

[0203] In other words, during operation, the lifting cylinder 49 lifts the screen tube 75 up to the screen support ring 16, bringing the screen tube 75 into contact with the filter screen piece. The position of the screen tube 75 is further fixed by the engagement of the locking hole 53 and the latch 54. The welding head 48 welds the filter screen piece and the screen tube 75 together, then moves the welding head 48 back to its original position. The welded screen returns to the screen tube 75 position as the lifting cylinder 49 resets.

[0204] Furthermore, a welding sensor is installed at the welding station to detect whether there is a screen tube 75 in the screen tube station 19 located above the welding station, and transmits a signal to the controller 57, which controls the welding head to work through the signal.

[0205] Understandably, when a screen tube 75 is detected in the screen tube 75 station, the welding head moves toward the feeding tray 8 to weld the filter screen piece onto the screen tube 75; when there is no screen tube 75 in the screen tube 75 station, the welding head remains stationary.

[0206] Specifically, the welding sensor is fixedly installed above or below the welding station to monitor whether the screen tube 75 transmits a signal.

[0207] like Figure 27 As shown, the automatic filter welding system also includes a discharge baffle 5. The discharge baffle 5 is fixed between the upper and lower plates via an eighth bracket 74, located at the discharge station. One end of the discharge baffle 5 is a fixed end connected to the eighth bracket 74, located outside the feeding tray 8, and the other end is a free end, located inside the feeding tray 8. The fixed end of the discharge baffle 5 is after the discharge station, while the free end is inclined inwards towards the feeding tray 8.

[0208] Preferably, the height of the discharge baffle 5 is similar to the height of the center of gravity of the screen tube 75, which can better guide the screen tube 75 and prevent it from tipping over.

[0209] Understandably, when the welded screen reaches the free end of the discharge baffle 5, the screen tube 75 first contacts the free end and is blocked by the discharge baffle 5. As the feeding disc 8 rotates, it leaves the opening of the screen tube station 19 of the feeding disc 8 and falls off by gravity.

[0210] Furthermore, the discharge baffle 5 can be arc-shaped.

[0211] The control device 6 includes a switch 56, sensors, and a controller 57. The switch 56 is used to turn the automatic filter welding system on and off. Multiple sensors are used to detect the material feeding status at each workstation. The controller 57 receives signals from the multiple sensors and controls the operation of multiple motors 9 or multiple cylinders.

[0212] Furthermore, a feed sensor is installed at the feeding station to detect the feeding status of the screen tube 75 and transmit a signal to the controller 57.

[0213] Specifically, the feed sensor is fixedly installed above or below the feed station to monitor whether the screen tube 75 transmits a signal.

[0214] When the feed sensor detects that there is a screen tube 75 at the feed station, it transmits a signal indicating that there is a tube to the controller 57, and the controller 57 controls the feeding disc 8 to rotate by a preset angle; when the feed sensor detects that there is no screen tube 75 at the feed station, it transmits a signal indicating that there is no tube to the controller 57, and the controller 57 controls the feeding disc 8 to remain stationary.

[0215] The preset angle is the angle between workstations. This angle depends on the number of workstations. In this embodiment, the preset angle is preferably 22.5°, that is, the preset angle β = 360° / 24.

[0216] Understandably, by detecting whether there is a screen tube 75 at the feeding station through the feeding sensor and transmitting a signal to the controller 57, the controller 57 controls the rotation of the feeding plate 8 according to the different signals transmitted by the feeding sensor. This can effectively avoid the problem of low work efficiency caused by the automatic welding system of the filter screen running idle due to the failure of feeding the screen tube 75.

[0217] Furthermore, a cutting sensor is installed at the cutting station to detect whether there is a screen tube 75 in the screen tube station 19 located above the cutting station, and transmits a signal to the controller 57.

[0218] Specifically, the cutting sensor is fixedly installed above or below the cutting station to monitor whether the screen tube 75 transmits a signal.

[0219] When the controller 57 receives a signal that there is a screen tube 75 at the cutting station, the controller 57 controls the cutting device 24 to cut the filter belt and sends the cut filter pieces to the cutting station 18; when the controller 57 receives a signal that there is no screen tube 75, the controller controls the cutting device 24 to remain stationary.

[0220] It is understandable that the presence or absence of the screen tube 75 at the cutting station is detected by the cutting sensor and a signal is transmitted to the controller 57. The controller 57 controls the cutting action of the cutting device 24 according to the different signals transmitted by the cutting sensor. When there is no screen tube 75, the filter belt is not cut, which can effectively avoid the waste of raw materials.

[0221] Furthermore, a welding sensor is installed at the welding station to detect whether there is a screen tube 75 in the screen tube station 19 located above the welding station, and transmits a signal to the controller 57.

[0222] Specifically, the welding sensor is fixedly installed above or below the welding station to transmit signals by monitoring the presence or absence of the screen tube 75.

[0223] When the controller 57 receives a signal that there is a screen tube 75 at the welding station, the controller 57 controls the welding cylinder 55 to move the welding head 48 down to perform welding work; when the controller 57 receives a signal that there is no screen tube 75 at the welding station, the controller 57 controls the welding cylinder 55 to remain stationary.

[0224] Understandably, the welding sensor detects the presence or absence of the screen tube 75 at the welding station and transmits a signal to the controller 57. The controller 57 controls the welding device 4 to either weld the screen or remain stationary based on the different signals transmitted by the welding sensor. Therefore, in the absence of the screen tube 75, the welding device 4 stops welding, thus avoiding ineffective operation of the welding device 4.

[0225] On the other hand, this embodiment also provides a screen manufacturing process for welding filter screens onto screen tubes 75. The process includes the following steps: S1, feeding the filter screen belt; S2, feeding the screen tube 75; S3, cutting the filter screen into pieces; S4, welding the filter screen onto the screen tube 75; S5, discharging the screen. Specifically,

[0226] In step S1, the feeding of the filter belt includes the following steps:

[0227] 1) Install the mesh belt reel 26 onto the mesh belt shaft 27 of the mesh belt frame 22.

[0228] 2) Release one end of the filter belt from the belt reel 26, pass it under the clamping arm 45 of the vertical pressing device 23, and then place it on the loading platform 28 of the cutting device 24.

[0229] 3) The filter belt on the loading platform 28 passes between the base 34 of the conveying device 25 and the filter belt fixing clamp 36, and then passes under the clamping clamp 42 of the clamping assembly 14.

[0230] 4) The mesh belt hangs freely from the end of the conveyor device 25, that is, the cut filter mesh belt slides down from the end of the conveyor belt by gravity.

[0231] In step S2, the feeding of material into the screen tube 75 is completed through the feed seat 7, including the following steps:

[0232] Place the screen tube 75 on the feeding platform 20 and push it horizontally to install the screen tube 75 into the screen tube station 19 of the screen tube conveying plate 11.

[0233] The body of the screen tube 75 can be snapped onto the arc of the screen tube 75 station, and the lower edge of the boss can rest on the upper surface of the screen tube conveyor plate 11.

[0234] After the material is fed, the feeding tray 8 rotates and the conveying screen tube 75 enters the cutting station.

[0235] In step S3, the filter screen conveyor cutting device 3 cuts the filter screen pieces, including the following steps:

[0236] S31, Conveying device 25 conveys the filter belt;

[0237] S32, the conveyor 25 moves back to its original position and presses the filter belt tight;

[0238] S33, the cutting device 24 cuts the filter belt and conveys the filter sheet.

[0239] Steps S31, S32 and S33 are repeated in a cycle. That is, after the conveying device 25 conveys the filter belt a set distance, the conveying device 25 moves back to its original position and presses the filter belt tightly. Then the cutting device 24 cuts the filter belt, completing one cycle. The filter belt continues to be conveyed, pressed and cut to complete the next cycle, and so on.

[0240] In step S31, the conveying of the filter belt is completed by the conveying device 25. During operation, the filter belt passes between the base 34 and the filter belt fixing clamp 36. Driven by the first pressing cylinder 65, the filter belt fixing clamp 36 moves downward to contact the two clamping positions 35 of the base 34, clamping the filter belt. Then, driven by the moving cylinder 33, the conveying device 25 moves forward a set distance, moving the clamped filter belt forward a set distance together. Then, driven by the first pressing cylinder 65, the filter belt fixing clamp 36 moves upward away from the base 34, releasing the filter belt.

[0241] Understandably, the filter belt conveying process ensures that the belt is flat and passes through the cutting hole 32 at a set speed. Each reciprocating motion of the conveying device 25 causes the filter belt to move forward a distance that is not less than the diameter of the cutting head 30 and not more than twice the diameter of the cutting head 30.

[0242] During step S32, the clamping clamp 42 of the clamping assembly 14 moves downward under the drive of the second clamping cylinder 66, contacting the loading platform 28. The clamping clamp 42 and the loading platform 28 together clamp the filter screen belt on the loading platform 28. Then, the conveying device 25 moves backward and resets under the drive of the moving cylinder 33. The filter screen belt fixing clamp 36 moves downward again to clamp the filter screen belt. Then, the clamping assembly 14 releases the filter screen belt. The vertical pressing device 23 keeps pressing on the filter screen belt. Therefore, the conveying device 25 and the vertical pressing device 23 work together to press the filter screen belt that has been conveyed to the position, so that the part of the filter screen belt on the loading platform 28 maintains a relative tension, thereby keeping it flat, so that the subsequent cutting process can be completed smoothly, and ensuring that qualified filter screens are cut out.

[0243] In step S33, the cutting of the filter belt is completed by the cutting device 24. During operation, the cutting head 30 is driven by the cutting cylinder 29 to the cutting hole 32 and engages with the cutting hole 32 to cut the filter belt placed on the cutting hole 32. After the cutting is completed, the cutting head 30 continues to move forward and passes through the cutting hole 32 into the cutting station 18 on the cutting sheet conveyor. It pushes the cut filter sheet onto the mesh support ring 16 in the cutting station 18. Then the cutting head 30 moves up and returns to its original position, completing one cutting of the filter belt and feeding of the filter sheet.

[0244] Step S33, the cutting device 24, cuts the filter belt and conveys the filter mesh pieces. Each time, the filter belt can be directly cut into a filter mesh piece of appropriate size. After each cut, the cut filter mesh piece is immediately transferred to the cutting station 18. This saves the process of manually placing the filter mesh pieces required by traditional welding machines, and also avoids the disadvantages of other automated welding machines that are prone to failure to pick up the filter mesh pieces or pick up multiple pieces when transferring the filter mesh pieces.

[0245] After the filter screen cutting process is completed, the feeding tray 8 conveys the screen tube 75 and the filter screen cutting into the welding station.

[0246] In step S4, the filter screen is welded onto the screen tube 75;

[0247] The lifting head 50 of the pushing component 47 passes through the screen tube station 19 and enters the screen tube 75, lifting the screen tube 75 into the cutting station 18, so that the upper end of the screen tube 75 contacts the filter screen cutting piece on the screen support ring 16.

[0248] The latch 54 of the locking cylinder 52 is inserted into the locking hole 53 of the lifting cylinder 49 to limit the lifting head of the lifting cylinder 49, thereby fixing the lifting head and making the screen tube 75 more stable.

[0249] The welding head 48 of the welding assembly 46 moves downward to the mesh support ring 16 in the cutting station 18 under the drive of the welding cylinder 55, and welds the filter mesh cutting piece and the screen tube 75 into shape.

[0250] The welding head 48 of the welding assembly 46 moves upward and resets; the latch of the locking cylinder 52 retracts and resets, releasing the locking function; the lifting cylinder 49 moves downward and resets, driving the welded screen tube 75 back to the screen tube station 19 of the feeding tray 8, completing the welding process.

[0251] After the welding process is completed, the feeding tray 8 transports the welded screen bottle into the discharge station.

[0252] S5, discharge from the screen bottle;

[0253] When the welded screen reaches the free end of the discharge baffle 5, the screen tube 75 first contacts the free end and is blocked by the discharge baffle 5. As the feeding plate 8 rotates, it leaves the opening of the screen tube station 19 of the feeding plate 8 and falls off by gravity.

[0254] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0255] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. An automatic filter screen welding system for welding filter screen pieces to the end of a screen tube, comprising: The workbench is a table with a supporting surface, and also includes a feeding device, a filter belt conveyor and cutting device, a welding device, a discharge baffle and a control device installed on the supporting surface. The feeding device includes a feeding tray, a feeding seat and a motor. The feeding tray is a circular double-layer structure. The upper layer is a filter screen piece conveying tray and the lower layer is a screen tube conveying tray. The two layers are fixedly connected by a mounting rod. The filter mesh conveyor, cutting device, welding device, and discharge baffle are arranged sequentially around the feeding tray; The filter belt conveyor cutting device is located behind the feed seat and is used to place, convey and cut the filter belt; The welding device is located behind the filter screen conveyor cutting device and includes a welding assembly and a pushing assembly, used to weld the filter screen pieces to the end of the screen tube; The control device includes a switch, multiple sensors, and a controller. The multiple sensors are placed at different workstations, and the controller collects the signals from the multiple sensors and performs the work. The discharge baffle is located after the welding device and is used for discharging the welded screen bottle.

2. The automatic filter screen welding system according to claim 1, characterized in that, The feeding tray is fixed to the workbench by the first bracket. The filter screen piece conveying tray and the screen tube conveying tray are arranged in parallel, and the distance between the two layers is greater than the height of the screen tube. Several cutting stations are set on the filter screen piece conveying tray, and the cutting stations are evenly arranged on the outer periphery of the filter screen piece conveying tray. The cutting station is round and slightly larger in diameter than the screen tube, and is used to place and convey the cut filter screen pieces.

3. The automatic filter screen welding system according to claim 2, characterized in that, A mesh support ring is provided in the cutting station to hold the filter mesh cutting pieces; the mesh support ring is an annular protrusion set in the cutting station, with a ring width of 0.05-1mm; the inner diameter of the mesh support ring is the same as the diameter of the filter mesh cutting piece, and slightly larger than the diameter of the screen tube; An anti-adhesion baffle is installed above the cutting station; the anti-adhesion baffle is made of elastic material, is circular, and has an inner diameter slightly smaller than the diameter of the cutting station.

4. The automatic filter screen welding system according to claim 3, characterized in that, The screen tube conveyor tray is equipped with screen tube stations. The number of screen tube stations is the same as the number of cutting stations, and they are evenly distributed on the outer periphery of the screen tube conveyor tray. The positions of the screen tube stations and the cutting stations are vertically corresponding and concentric. The screen tube station is an arc with its opening facing outward. The diameter of the arc is slightly larger than the diameter of the screen tube body, and it is used to place the screen tube.

5. The automatic filter screen welding system according to claim 4, characterized in that, The feeding seat is located on one side of the feeding tray and is fixed to the workbench by the second bracket. It includes a feeding platform, which is located at the top of the second bracket and is U-shaped with an opening in the horizontal direction. The width of the feeding platform is matched with the diameter of the screen tube. The feeding station is equipped with a feeding sensor to detect the feeding status of the screen tube and transmit the signal to the controller.

6. The automatic filter screen welding system according to claim 5, characterized in that, Screen tube baffles are installed along the edge of the screen tube conveyor plate. The shape of the screen tube baffles matches the shape of the screen tube conveyor plate and is arc-shaped. They are installed along one side of the work station, between the feed seat and the discharge baffle. The motor is installed on the worktable and transmits power intermittently to the feed plate.

7. The automatic filter screen welding system according to claim 6, characterized in that, The filter belt conveyor and cutting device includes a belt frame, a pressure device, a cutting device, and a conveying device, and is used to place, cut, and convey the filter belt. The mesh belt frame, the vertical pressing device, the cutting device, and the conveying device are arranged in a straight line on one side of the feeding tray, and the straight line is tangent to the feeding tray. The mesh belt frame is used to place the mesh belt reel and includes a third bracket and a mesh belt shaft; the third bracket is fixed on the workbench and the mesh belt shaft is set on the upper part of the third bracket; the mesh belt shaft is used to hold the mesh belt reel.

8. The automatic filter screen welding system according to claim 7, characterized in that, The cutting device is located at the cutting station on one side of the feeding tray and is fixed to the first base by the fourth bracket. The first base is fixed to the worktable by the fifth bracket. The cutting device includes a material carrier, a cutting cylinder and a cutting head. The material carrier is fixedly installed on the first base, located above the filter screen sheet conveyor and below the cutting head; the material carrier is long and narrow, and is set along the tangent of the feeder in the length direction; the material carrier is the carrier for the filter screen belt conveyor; the part of the material carrier near the mesh belt frame is slightly wider than the width of the filter screen belt; there are cutting holes on the material carrier, and the cutting holes are circular. The cutting head is mounted on the cutting cylinder, which is fixedly installed inside the fourth bracket; the cutting head moves up and down under the drive of the cutting cylinder; the cutting head is a round tube or cylinder with a diameter slightly larger than the diameter of the welding screen tube; the cutting head and the cutting holes on the loading platform correspond to each other in the vertical direction.

9. The automatic filter screen welding system according to claim 8, characterized in that, A limit baffle is provided at one end of the loading platform near the mesh belt frame. There are two limit baffles, which are installed on both sides of the loading platform. The limit baffle is composed of two vertical strip-shaped components, which are integrally formed. One side of one strip is fixed to one side of the loading platform, and the other strip is parallel to the loading platform and the distance between the strip and the loading platform is 0.5mm-1mm. A cutting sensor is installed at the cutting station to detect whether there is a screen tube in the screen tube station located below the cutting station, and transmits a signal to the controller. The controller controls the cutting head to work through the signal.

10. The automatic filter screen welding system according to claim 9, characterized in that, The conveying device includes a conveying assembly and a clamping assembly; the conveying assembly includes an installation platform, a first base, a second base, a shaft, a gantry, a moving cylinder, a first clamping cylinder, and a mesh belt fixing clamp; the clamping assembly includes a second base, a second clamping cylinder, and clamping clamps. The mounting platform of the conveying component is long and narrow, and is set along the length of the loading platform. One end of the mounting platform is fixed on the first base, and is located above the filter screen cutting sheet conveying tray and below the loading platform. The second base is fixedly installed at the other end of the installation platform; The portion of the loading platform furthest from the mesh belt frame has a width smaller than the width of the filter mesh belt but larger than the diameter of the filter mesh sheet. The shafts are arranged parallel to the length of the loading platform and are located on both sides of the installation platform. The two ends of the shafts are connected to the first base and the second base. The two shafts can ensure that the installation platform and the loading platform are between the two shafts in the width direction, and the two shafts can ensure that the two shafts are between the installation platform and the loading platform in the height direction. The first base has through holes on both sides. The conveying assembly is installed on the shafts on both sides of the mounting platform through the through holes on both sides of the first base. The first base can move along the shafts. The first base has a movable cylinder that can drive the conveying assembly to move along the axis; The upper surface of the first base is flat, with two clamping positions on both sides and a groove in the middle. The size of the groove matches the width of the loading platform, allowing the loading platform to pass through. After the loading platform is placed in the groove, the upper surface of the loading platform is flush with the upper surface of the mounting platform. The gantry frame is connected to the first base. The gantry frame is equipped with a first pressing cylinder that can move up and down. The lower end of the first pressing cylinder is equipped with a mesh belt fixing clamp.

11. The automatic filter screen welding system according to claim 10, characterized in that, The welding device includes a welding assembly and a feeding assembly; wherein, the welding assembly includes a seventh support, a welding head and a welding cylinder, and the feeding assembly includes a lifting cylinder and a lifting head; The welding assembly is located above the welding station of the feeding tray and is used to weld the filter screen pieces to the end of the screen tube. The welding station is the next station after the cutting station. The welding cylinder is mounted on the worktable through the seventh bracket, and the welding head is mounted on the welding cylinder fixed at the top of the seventh bracket. The welding cylinder controls its up and down movement. The material pushing assembly is located below the feeding tray and is fixedly installed on the worktable; the material pushing assembly includes a lifting cylinder and a lifting head, the lifting head is installed above the lifting cylinder and is controlled by the lifting cylinder to realize its up and down movement; The lifting head at the top of the lifting cylinder is truncated cone-shaped. The diameter of the end of the truncated cone is less than or equal to the inner diameter of the screen tube, and the diameter of the middle part of the truncated cone is greater than the inner diameter of the screen tube. The part connecting the middle part and the end of the truncated cone forms the lifting position, which is in contact with the screen tube. Welding sensors are installed at the welding station to detect whether there is a screen tube in the screen tube station located above the welding station, and transmit the signal to the controller. The controller controls the welding head to work through the signal.

12. The automatic filter screen welding system according to claim 11, characterized in that, The discharge baffle is fixed between the filter screen cutting sheet conveying tray and the screen tube conveying tray by the eighth bracket and is located at the discharge station. One end of the discharge baffle is a fixed end connected to the eighth bracket and located on the outside of the feeding tray, and the other end is a free end located on the inside of the feeding tray. The fixed end of the discharge baffle is after the discharge station, and the free end is inclined towards the inside of the feeding tray.

13. The automatic filter screen welding system according to claim 12, characterized in that, The control device includes switches, sensors, and a controller; the switches are used to turn the automatic filter welding system on and off; there are multiple sensors to sense the feeding status at each workstation; the controller is used to receive signals from multiple sensors and control the actions of multiple motors or cylinders. Feeding sensors are installed at the feeding station, cutting sensors are installed at the cutting station, and welding sensors are installed at the welding station.

14. A screen manufacturing process, characterized in that, The automatic filter screen welding system according to claim 13 includes the following steps: S1, feeding the filter screen belt; S2, feeding the screen tube; S3, cutting the filter screen into pieces; S4, welding the filter screen onto the screen tube; S5, discharging the screen bottle.

15. The screen manufacturing process according to claim 14, characterized in that, In step S1, the feeding of the filter belt includes the following steps: Install the mesh belt reel onto the mesh belt shaft of the mesh belt frame; Release one end of the filter belt from the belt reel, pass it under the clamping arm of the vertical pressing device, and then place it on the loading table of the cutting device; The filter belt on the loading platform passes between the first base of the conveying device and the filter belt fixing clamp, and then passes under the clamping clamp of the clamping assembly; The mesh belt hangs freely from the end of the conveyor device, meaning that the cut filter mesh belt slides down from the end of the conveyor belt by gravity.

16. The screen manufacturing process according to claim 14, characterized in that, In step S2, the feeding of the screen tube is completed through the feed seat, including the following steps: Place the screen tube on the feeding platform and push it horizontally to install the screen tube into the screen tube station of the screen tube conveyor plate; The body of the screen tube is snapped onto the arc of the screen tube station, and the lower edge of the protrusion of the screen tube rests on the upper surface of the screen tube conveyor plate. After the material is loaded, the feeding disc rotates and the conveyor screen tube enters the cutting station.

17. The screen manufacturing process according to claim 14, characterized in that, In step S3, the filter screen conveyor cutting device cuts the filter screen pieces, including the following steps: The conveyor system transports the filter belt; The conveyor device was moved back to its original position and the filter belt was pressed tightly. The cutting device cuts the filter belt and conveys the filter mesh pieces.

18. The screen manufacturing process according to claim 14, characterized in that, In step S4, the filter screen is welded onto the screen tube, including the following steps: The lifting head of the pushing component passes through the screen tube station and enters the screen tube, lifting the screen tube into the cutting station so that the upper end of the screen tube contacts the filter screen cutting piece on the screen support ring. The latch of the locking cylinder is inserted into the locking hole of the lifting cylinder to limit the lifting head of the lifting cylinder, thereby fixing the lifting head and making the screen tube more stable; the welding head of the welding assembly moves downward to the mesh support ring in the cutting station under the drive of the welding cylinder, and welds the filter mesh cutting and the screen tube into shape. The welding head of the welding assembly moves up and resets; the latch of the locking cylinder retracts and resets, releasing the locking function. The lifting cylinder moves down and resets, driving the welded screen tube back to the screen tube station on the feeding tray, completing the welding process; After the welding process is completed, the feeding tray transports the welded screen bottle into the discharge station.

Images