Steel wire drying air cutting mechanism

Abstract

The utility model discloses a kind of steel net drying wind cutting mechanisms, including spray chamber, two mobile modules installed in the inside of spray chamber, two air knife modules are respectively installed on two mobile modules, transmission module is installed in the outside of spray chamber and is connected two mobile modules, and air path module is connected two air knife modules;Two mobile modules are symmetrically located in the front and back sides of steel net top;Every mobile module includes two optical axis fixed seat, mobile slider, screw nut, threaded screw rod and two optical axes;Two air knife modules are symmetrically installed on two mobile sliders;Every air knife module includes air knife support and air knife;The air knife support is installed below corresponding mobile slider, the air knife is installed on corresponding air knife support, and air is blown towards the top edge of steel net. Uniform drying of steel net double-side top edge is realized by air knife of symmetrical layout and left and right movement, avoid debonding damage, reduce the consumption of energy.

Description

Technical Field

[0001] This utility model relates to an air-cutting mechanism, and more particularly to a steel mesh drying air-cutting mechanism, belonging to the technical field of steel mesh cleaning equipment. Background Technology

[0002] In the field of precision electronics manufacturing, stencils are a key consumable in SMT (Surface Mount Technology), and the drying process during cleaning directly affects their service life. Traditional stencil cleaning equipment typically uses an electric heating element combined with hot air drying, but this method has the following technical drawbacks: (1) Heat damage problem: High temperature hot air (usually >120℃) will cause the epoxy resin adhesive layer on the edge of the steel mesh to undergo heat aging, resulting in delamination and shortening the service life of the steel mesh. (2) Energy waste: The heating wire requires continuous power consumption, and the hot air system loses heat, resulting in significant energy loss.

[0003] Therefore, there is an urgent need to develop a new type of steel mesh drying mechanism that can achieve low-consumption and high-efficiency drying while avoiding degumming damage. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model provides a steel mesh drying and air-cutting mechanism to prevent the steel mesh edges from delaminating and to reduce energy consumption.

[0005] To achieve the above technical objectives, this utility model provides a steel mesh drying and air-cutting mechanism, including a spray chamber, two movable modules installed inside the spray chamber, two air knife modules respectively installed on the two movable modules, a transmission module installed outside the spray chamber and connected to the two movable modules, and an air circuit module connecting the two air knife modules. The two movable modules are symmetrically located on the front and rear sides of the top of the steel mesh; each movable module includes two optical axis fixing seats, a movable slider, a lead screw nut, a threaded lead screw, and two optical axes; wherein, the two optical axis fixing seats are symmetrically installed on the inner sides of the left and right walls of the spray chamber; the center of the movable slider is fitted with a lead screw nut, and two optical axis holes are symmetrically opened at the front and rear; the threaded lead screw is inserted into the lead screw nut, and its left and right ends are respectively inserted into the center of the two optical axis fixing seats; the two optical axes are respectively inserted into the two optical axis holes and are parallel to the threaded lead screw, with the left and right ends of the front optical axis respectively inserted into the front of the two optical axis fixing seats, and the left and right ends of the rear optical axis respectively inserted into the rear of the two optical axis fixing seats; The two air knife modules are symmetrically mounted on two movable sliders; each air knife module includes an air knife bracket and an air knife; the air knife bracket is mounted below the corresponding movable slider, and the air knife is mounted on the corresponding air knife bracket and blows air toward the front and back of the steel mesh.

[0006] Furthermore, the transmission module of this utility model includes two synchronous pulleys, a synchronous belt, and a stepper motor; wherein, the right ends of the two threaded screws penetrate the right wall of the spray chamber and are respectively fitted with synchronous pulleys; the synchronous belt connects the two synchronous pulleys; and the output shaft of the stepper motor is connected to the right end of one of its threaded screws.

[0007] Furthermore, in this invention, the stepper motor is mounted on a motor mount; the motor mount is mounted on the outer side of the right wall of the spray chamber.

[0008] Furthermore, the air circuit module of this utility model includes an air pipe elbow installed on the outer side of the right wall of the spray chamber, an air pipe, and two air pipe connectors respectively installed on two air knives; the air pipe elbow is connected to the two air pipe connectors respectively through the air pipe.

[0009] Furthermore, in this invention, the air pipe elbow is mounted on the ventilation screw; the ventilation screw is inserted into the right wall of the spray chamber and secured with a hexagonal nut.

[0010] Furthermore, this utility model also includes a limiting module; the limiting module includes a limiting sensor and two proximity sensors; wherein, the limiting sensor is installed on the front side of the moving slider; the two proximity sensors are respectively installed on both sides of the front wall of the spray chamber and are matched with the height of the limiting sensor to control the start and stop points of the left and right movement of the moving slider.

[0011] Furthermore, in this invention, the proximity sensor is installed in a proximity sensor sleeve, which is inserted into the front wall of the spray chamber and secured with a fine-thread nut.

[0012] Furthermore, in this invention, the left and right ends of the threaded screw are respectively mounted on two optical axis fixing seats via deep groove ball bearings and snap rings.

[0013] Furthermore, in this invention, the left and right ends of the optical axis are respectively fastened to two optical axis fixing seats by set screws.

[0014] Furthermore, in this invention, optical axis bushings are respectively installed in the two optical axis holes, and the two optical axes are respectively inserted into the two optical axis bushings.

[0015] In summary, this utility model utilizes a moving module and a transmission module to drive the air knife module to move left and right, and uses an air circuit module to input compressed air into the air knife module. The air knife module is then used to directly air-cut and dry the top of the steel mesh, thereby reducing the degumming phenomenon at the edges of the steel mesh, reducing tension attenuation, and increasing the service life of the steel mesh.

[0016] Compared with existing technologies, the technical advantages of this utility model are as follows: (1) This utility model uses compressed air as energy, which reduces energy consumption and plays a role in reducing costs and increasing efficiency.

[0017] (2) This utility model achieves uniform drying of the top edges of both sides of the steel mesh by using air knives with symmetrical layout and left and right movement, thus solving the problem of edge degumming damage caused by drying the steel mesh surface. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the structure of the mobile module in this utility model; Figure 3 This is a front view of the structure of the mobile module in this utility model; Figure 4 This is a schematic diagram of the structure of the movable slider, air knife module and limit sensor plate in this utility model; Figure 5 This is a schematic diagram of the transmission module in this utility model; Figure 6 This is a schematic diagram of the gas path module in this utility model; Figure 7 This is a schematic diagram of the limiting module in this utility model; In the diagram: 1. Spray chamber, 2. Steel mesh, 3. Moving slider, 4. Screw nut, 5. Air pipe connector, 6. Limit sensor plate, 7. Air knife, 8. Moving module, 9. Air knife bracket, 10. Optical shaft bushing, 11. Optical shaft fixing seat, 12. Optical shaft, 14. Threaded screw, 15. Deep groove ball bearing, 16. Snap ring, 17. Semi-circular head hexagonal screw, 18. Vent screw, 19. Observation glass, 20. Stepper motor, 21. Motor base, 22. Synchronous belt, 23. Synchronous pulley, 24. Coupling, 25. Proximity sensor sleeve, 26. Fine thread nut, 27. Hexagonal nut, 28. Air pipe elbow, 29. Air pipe, 30. Proximity sensor, 32. Set screw, 40. Transmission module, 41. Air circuit module, 42. Limit module. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with embodiments thereof. In the description of this application, terms such as "connection" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figure 1 As shown, this embodiment provides a steel mesh drying air cutting mechanism, including a spray chamber 1, two movable modules 8 installed inside the spray chamber 1, two air knife modules respectively installed on the two movable modules 8, a transmission module 40 installed outside the spray chamber 1 and connected to the two movable modules 8, and an air passage module 41 connecting the two air knife modules, which are described in detail below.

[0021] like Figure 1 As shown, the spray chamber 1, as the main structure of this utility model, is mainly composed of a front wall, a rear wall, a left wall, a right wall, an upper wall, and a lower wall. An observation glass 19 is installed on its front wall, and a rotating nozzle or spray arm is usually installed inside it to spray the cleaning liquid onto the surface of the steel mesh 2 in a high-pressure and uniform manner, thus completing the spraying process of the steel mesh 2. Subsequently, the top edge of the steel mesh 2 is air-dried using this utility model.

[0022] like Figures 2 to 4 As shown, two movable modules 8 are installed symmetrically on the top of the spray chamber 1, located on the front and rear sides of the top of the steel mesh 2, respectively. Each movable module 8 includes two optical axis fixing seats 11, a movable slider 3, a lead screw nut 4, a threaded lead screw 14, and two optical axes 12. Among them, as shown... Figure 2 , Figure 3 As shown, the two optical axis fixing seats 11 are symmetrically installed on the top inner side of the left and right walls of the spray chamber 1, serving as the support reference for the optical axis 12 and the threaded screw 14. Figure 2 , Figure 4 As shown, a lead screw nut 4 is embedded in the middle of the movable slider 3. The lead screw nut 4 is fitted onto the threaded lead screw 14, forming a threaded transmission pair, thereby driving the movable slider 3 to perform linear reciprocating motion along the threaded lead screw 14. The front and rear of the movable slider 3 are symmetrically provided with optical axis holes for parallel insertion of two optical axes 12. Figure 2 , Figure 3 As shown, the left and right ends of the threaded screw 14 are respectively inserted into the middle of the two optical axis fixing seats 11. Figure 2 , Figure 3As shown, the two optical axes 12 are located on the front and rear sides of the threaded screw 14, respectively, and are parallel to the threaded screw 14; the left and right ends of the front optical axis 12 are respectively inserted into the front of the two optical axis fixing seats 11; the left and right ends of the rear optical axis 12 are respectively inserted into the rear of the two optical axis fixing seats 11. In specific implementation, the movable slider 3 moves axially along the threaded screw 14 through the screw nut 4, and is guided by the two optical axes 12 to ensure the straightness of the movement trajectory.

[0023] In other embodiments, such as Figure 2 As shown, the left and right ends of the threaded screw 14 are respectively mounted on two optical axis fixing seats 11 via deep groove ball bearings 15 and snap rings 16. In a specific implementation, deep groove ball bearings 15 and snap rings 16 are installed at both ends of the threaded screw 14. The snap rings 16 are embedded in the grooves on the outer ring end face of the bearings, thereby restricting axial displacement.

[0024] In other embodiments, such as Figure 3 As shown, both ends of the optical axis 12 are fastened to two optical axis fixing seats 11 by set screws 32. In specific implementation, the bottom of the optical axis fixing seat 11 is provided with threaded holes, and the set screws 32 are screwed into the threaded holes until the optical axis 12 is tightened.

[0025] In other embodiments, such as Figure 4 As shown, optical axis bushings 10 are respectively installed in the two optical axis holes, and the two optical axes 12 are respectively inserted into the two optical axis bushings 10. In specific implementation, the optical axis bushings 10 at the front and rear of the movable slider 3 are slidably fitted with the two optical axes 12.

[0026] like Figure 5 As shown, the transmission module 40 includes two synchronous pulleys 23, a synchronous belt 22, and a stepper motor 20. The right ends of the two threaded screws 14 penetrate the right wall of the spray chamber 1 and are respectively fitted with synchronous pulleys 23. The synchronous belt 22 connects the two synchronous pulleys 23, realizing synchronous transmission of the two threaded screws 14. The output shaft of the stepper motor 20 is connected to the right end of one of the threaded screws 14. In specific implementation, the stepper motor 20 drives the single-sided threaded screw 14 to rotate, which in turn drives the other threaded screw 14 to rotate synchronously via the synchronous belt 22, forming a dual-axis synchronous drive structure. This ensures the driving consistency of the two moving sliders 3, thereby driving the two air knife modules to move left and right.

[0027] In other embodiments, such as Figure 5 As shown, the stepper motor 20 is mounted on the motor base 21; the motor base 21 is mounted on the outer side of the right wall of the spray chamber 1, serving as a support reference for the stepper motor 20.

[0028] In other embodiments, such as Figure 5As shown, the output shaft of the stepper motor 20 and the right end of the lead screw 14 are connected by a coupling 24 to ensure a rigid connection between them. In specific implementation, the stepper motor 20 drives the connected lead screw 14 to rotate through the coupling 24.

[0029] like Figure 4 , Figure 7 As shown, the two air knife modules are symmetrically mounted on two movable sliders 3; each air knife module includes an air knife support 9 and an air knife 7; the air knife support 9 is mounted below the corresponding movable slider 3, and the air knife 7 is mounted on the air knife support 9. In specific implementation, the front air knife 7 and the rear air knife 7 are located on the front and rear sides of the top of the steel mesh 2, respectively, to align with the top edge of the steel mesh 2. Furthermore, the symmetrical arrangement of the two air knives 7 ensures that the top edge of the steel mesh 2 receives air evenly, avoiding uneven air-cutting and drying.

[0030] like Figure 4 , Figure 6 , Figure 7 As shown, the air circuit module 41 includes an air pipe elbow 28, an air pipe 29, and two air pipe connectors 5 respectively installed on the outer side of the right wall of the spray chamber 1; the air pipe elbow 28 serves as a compressed air inlet, and is connected to the two air pipe connectors 5 through the air pipe 29. In specific implementation, compressed air is introduced into the air pipe elbow 28, output to the air pipe connectors 5 through the air pipe 29, and enters the air knife 7, thereby using the air knife 7 to blow out a high-pressure airflow for the air-cutting drying process. Furthermore, the air pipe 29 adopts a flexible connection to accommodate the reciprocating motion of the moving slider 3.

[0031] In other embodiments, such as Figure 6 As shown, the air pipe elbow 28 is installed on the ventilation screw 18; the ventilation screw 18 is inserted into the right wall of the spray chamber 1 and is fastened by the hexagonal nut 27.

[0032] like Figure 7 As shown, this utility model also includes a limiting module 42; the limiting module 42 includes a limiting sensor 6 and two proximity sensors 30; wherein, the limiting sensor 6 is installed on the front side of the moving slider 3 of the front moving module 8 by two semi-circular head hexagonal screws 17; the proximity sensors 30 are respectively installed on both sides of the front wall of the spray chamber 1, and are matched with the height of the limiting sensor 6, and are used to control the start and stop points of the left and right movement of the moving slider 3 by sensing the limiting sensor 6.

[0033] In other embodiments, such as Figure 7 As shown, the proximity sensor 30 is installed in the proximity sensor sleeve 25; the proximity sensor sleeve 25 is inserted into the front wall of the spray chamber 1 and fastened by the fine-thread nut 26.

[0034] In summary, during operation, the stepper motor 20 drives the front threaded screw 14 to rotate via the coupling 24. This rotation, combined with the synchronous belt 22 and synchronous pulley 23, drives the rear threaded screw 14 to rotate synchronously, achieving dual-screw synchronous transmission. As the two threaded screws 14 rotate, they drive the corresponding screw nuts 4 to move axially, thereby causing the two movable sliders 3 and the air knife 7 below them to move left and right along the optical axis 12. Simultaneously, compressed air is introduced into the air knife 7 through the air pipe elbow 28, air pipe 29, and air pipe connector 5. The two air knives 7 blow high-pressure airflow towards the top edges of the front and rear sides of the steel mesh 2, removing residual liquid and completing the air-cutting and drying process for the top edges of the steel mesh 2. Furthermore, this invention uses compressed air as its energy source, avoiding the use of high-temperature hot air (typically >120℃), thus preventing thermal aging of the epoxy resin adhesive layer at the edges of the steel mesh 2 and preventing delamination, thereby extending the service life of the steel mesh 2.

[0035] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, based on the ideas of this utility model, modifications can be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the ideas and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A steel mesh drying and air-cutting mechanism, characterized in that, It includes a spray chamber, two movable modules installed inside the spray chamber, two air knife modules installed on the two movable modules respectively, a transmission module installed outside the spray chamber and connected to the two movable modules, and an air circuit module connecting the two air knife modules. The two movable modules are symmetrically located on the front and rear sides of the top of the steel mesh; each movable module includes two optical axis fixing seats, a movable slider, a lead screw nut, a threaded lead screw, and two optical axes; wherein, the two optical axis fixing seats are symmetrically installed on the inner sides of the left and right walls of the spray chamber; the center of the movable slider is fitted with a lead screw nut, and two optical axis holes are symmetrically opened at the front and rear; the threaded lead screw is inserted into the lead screw nut, and its left and right ends are respectively inserted into the center of the two optical axis fixing seats; the two optical axes are respectively inserted into the two optical axis holes and are parallel to the threaded lead screw, with the left and right ends of the front optical axis respectively inserted into the front of the two optical axis fixing seats, and the left and right ends of the rear optical axis respectively inserted into the rear of the two optical axis fixing seats; The two air knife modules are symmetrically mounted on two movable sliders; each air knife module includes an air knife bracket and an air knife; the air knife bracket is mounted below the corresponding movable slider, and the air knife is mounted on the corresponding air knife bracket and blows air toward the top edge of the steel mesh.

2. The steel mesh drying and air-cutting mechanism according to claim 1, characterized in that, The transmission module includes two synchronous pulleys, a synchronous belt, and a stepper motor; wherein, the right ends of the two threaded screws penetrate the right wall of the spray chamber and are respectively fitted with synchronous pulleys; the synchronous belt connects the two synchronous pulleys; the output shaft of the stepper motor is connected to the right end of one of its threaded screws.

3. A steel mesh drying and air-cutting mechanism according to claim 2, characterized in that, The stepper motor is mounted on a motor mount; the motor mount is mounted on the outer side of the right wall of the spray chamber.

4. The steel mesh drying and air-cutting mechanism according to claim 1, characterized in that, The air circuit module includes an air pipe elbow installed on the outside of the right wall of the spray chamber, an air pipe, and two air pipe connectors installed on two air knives respectively; the air pipe elbow is connected to the two air pipe connectors respectively through the air pipe.

5. A steel mesh drying and air-cutting mechanism according to claim 4, characterized in that, The air pipe elbow is installed on the ventilation screw; the ventilation screw is inserted into the right wall of the spray chamber and fastened with a hexagonal nut.

6. A steel mesh drying and air-cutting mechanism according to claim 1, 2, or 4, characterized in that, It also includes a limiting module; the limiting module includes a limiting sensor and two proximity sensors; wherein, the limiting sensor is installed on the front side of the front moving slider; the two proximity sensors are respectively installed on both sides of the front wall of the spray chamber and are matched with the height of the limiting sensor to control the start and stop points of the left and right movement of the moving slider.

7. A steel mesh drying and air-cutting mechanism according to claim 6, characterized in that, The proximity sensor is installed in a proximity sensor sleeve, which is inserted into the front wall of the spray chamber and secured with a fine-thread nut.

8. A steel mesh drying and air-cutting mechanism according to claim 1, 2, or 4, characterized in that, The left and right ends of the threaded screw are respectively mounted on two optical axis fixing seats via deep groove ball bearings and snap rings.

9. A steel mesh drying and air-cutting mechanism according to claim 1, 2, or 4, characterized in that, The left and right ends of the optical axis are respectively fastened to two optical axis fixing seats by set screws.

10. A steel mesh drying and air-cutting mechanism according to claim 1, 2, or 4, characterized in that, Optical axis bushings are respectively installed in the two optical axis holes, and the two optical axes are respectively inserted into the two optical axis bushings.

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