SMT steel mesh frame processing mesh cutting machine

Abstract

The invention discloses a gauze cutting machine for processing an SMT steel mesh frame, and belongs to the technical field of gauze cutting. The technical key points are: comprising a bottom plate, a fixed-length cutting driving mechanism can be provided to enable a cutting blade on a lifting block to perform a fixed-length cutting process on the gauze to be cut, a guide roller mechanism can be provided to enable an elastic guiding process of the gauze to be cut by the guide roller, a conveying driving mechanism can be provided to enable the cutting blade to move down for cutting, and a first conveyor belt and a second conveyor belt to stop conveying driving, thereby facilitating the cutting blade to move down for cutting, and after the cutting blade is lifted after cutting, the first conveyor belt and the second conveyor belt are conveying driven, thereby achieving continuous fixed-length cutting, and a mutually frictional conveying mechanism can be provided to enable the gauze to be cut to always maintain a good position and tension during the cutting and conveying process, thereby avoiding dislocation or wrinkles, and significantly improving the processing accuracy. The machine has the advantages of being able to cut the gauze to a fixed length and being convenient for improving work efficiency.

Description

Technical Field

[0001] The invention relates to the field of gauze cutting, in particular to a gauze cutting machine for processing SMT steel mesh frames. Background Art

[0002] SMT surface mounting technology is the most popular technology and process in the electronic assembly industry. It is a circuit assembly technology that mounts pinless or short-lead surface mounting components on the surface of a printed circuit board or other substrate, and assembles them by soldering through reflow soldering or dip soldering.

[0003] The structure of SMT steel mesh includes mesh frame, gauze, steel sheet and bonding glue. At present, the conventional steel mesh production method is manual production. First, the steel sheet is placed on the boss, and then the mesh frame with wire mesh is buckled on the steel sheet, and yellow glue is scraped on the back of the steel mesh. The scraping range is 20mm (in the shape of a circle) around the four sides of the steel sheet. The yellow glue penetrates the wire mesh to bond the steel sheet to the steel mesh. The leaked steel sheet is used for the later steel sheet opening. In the processing of SMT steel mesh frame, the gauze material used usually needs to have high wear resistance, good elasticity, chemical stability and a certain tension retention ability. To ensure that the flow of solder paste can be effectively controlled during the printing process, while ensuring the durability and precision of the steel mesh frame, commonly used mesh materials mainly include polymer polyester mesh (such as nylon mesh) and stainless steel wire mesh. Before SMT surface mounting processing, it is often necessary to select mesh of a certain size for installation and use. At present, conventional measures are mostly manual cutting, but the sizes of the cut meshes are uneven, and corresponding cutting is required in the later stage, which greatly reduces the work efficiency of installation and processing and cannot meet the actual use requirements.

[0004] Therefore, it is necessary to provide a mesh cutting machine for SMT steel mesh frame processing to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the embodiments of the present invention is to provide a mesh cutting machine for SMT steel mesh frame processing, aiming to solve the technical problems raised in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The mesh cutting machine for SMT steel mesh frame processing comprises a bottom plate, a first conveyor belt and a second conveyor belt for conveying the mesh to be cut are arranged on the bottom plate, the first conveyor belt and the second conveyor belt are synchronously connected to the bottom plate, one side of the mesh to be cut is wound and connected to the winding roller, and cutting blades for cutting are arranged on both sides of the mesh to be cut, and the cutting blades are detachably mounted on the vertical plate, and also comprises:

[0008] A fixed-length cutting drive mechanism is installed on the vertical plate and is used to drive the cutting blade to perform reciprocating fixed-length cutting. The fixed-length cutting drive mechanism includes a joystick and a turntable for driving the cutting blade to perform reciprocating cutting. The turntable is fixedly connected to a first guide slide column. The joystick is provided with a first guide slide groove adapted to be slidably connected to the first guide slide column. One end of the joystick is rotatably connected to the vertical plate through a first connecting shaft.

[0009] A conveying drive mechanism, which is installed at the connection between the vertical plate and the second conveyor belt, connected to the fixed-length cutting drive mechanism, and is used to drive the second conveyor belt and the first conveyor belt to perform synchronous conveying, the conveying drive mechanism includes a second worm and a second worm wheel for conveying drive, the second conveyor belt is drivingly connected to the third transmission roller and the fourth transmission roller, the rotating shaft on the fourth transmission roller is fixedly connected to the second worm wheel, and the second worm wheel is meshingly connected to the second worm;

[0010] The opposite friction conveying mechanism is installed on the support frame and is used for frictionally driving the yarn web to be cut on the second conveyor belt for conveying transmission. The opposite friction conveying mechanism includes a friction roller and a first worm gear for driving the yarn web to be cut for transmission connection. The friction roller is rotatably connected to the second roller mounting seat. The friction roller is rotatably connected to the second connecting shaft through a fourth synchronous belt. The second connecting shaft is fixedly connected to a first worm gear. The first worm gear is meshingly connected to a first worm gear. The first worm gear and the second worm gear are coaxially arranged and fixedly connected to each other. The first worm gear and the second worm gear are both rotatably installed on the support frame.

[0011] The guide roller mechanism is installed on the vertical plate and is used for elastically guiding the transmission of the yarn web to be cut.

[0012] As a further solution of the present invention, the fixed-length cutting drive mechanism also includes a second gear, a first gear and a motor for driving the turntables to rotate towards each other, and the turntables are rotatably mounted on the vertical plate through a fifth connecting shaft and a fourth connecting shaft, the fifth connecting shaft is fixedly connected with the second gear, the fourth connecting shaft is fixedly connected with the first gear, the first gear and the second gear are meshingly connected, the fifth connecting shaft is fixedly connected to the output shaft of the motor, the motor is fixedly mounted on the vertical plate through a motor mounting plate, and a second protective cover for protection is provided on the outside of the motor.

[0013] As a further solution of the present invention, the fixed-length cutting drive mechanism also includes a lifting block for driving the cutting blade to perform cutting, the cutting blade is detachably mounted on the lifting block, the lifting block is slidingly connected to the vertical plate through a dovetail slider, a dovetail groove which is adapted to be slidably connected to the dovetail slider is provided on the vertical plate, a second guide slide column is fixedly connected to the lifting block, a second guide slide groove which is adapted to be slidably connected to the second guide slide column is provided on the joystick, and a first protective cover for protection is provided on the outer side of the joystick.

[0014] As a further solution of the present invention, a limiting block is fixedly connected to the cutting blade, and the lifting block is provided with an installation groove that is adapted for sliding connection with the cutting blade and the limiting block. The cutting blade is provided with a limiting hole for positioning installation, and the outer side of the lifting block is provided with a fastening bolt for fastening and fixing the positioning installation. The fastening bolt is adapted for movably connecting to the limiting hole, and the fastening bolt is threadedly connected to the lifting block.

[0015] As a further solution of the present invention, the conveying drive mechanism also includes an incomplete gear for driving the first conveyor belt and the second conveyor belt for intermittent conveying, the incomplete gear is fixedly connected to the fourth connecting shaft, the incomplete gear is meshed with a third gear, the third gear is rotatably mounted on the vertical plate via the third connecting shaft, the third connecting shaft is rotatably connected to the first worm gear and the second worm gear via the fifth synchronous belt, the third transmission roller and the fourth transmission roller are both rotatably mounted on the base plate via the second support plate, and the winding roller is rotatably connected to the fourth transmission roller via the second synchronous belt.

[0016] As a further solution of the present invention, the conveying drive mechanism also includes a first synchronous belt for driving the first conveyor belt to synchronously convey, the first conveyor belt is transmission-connected to the first transmission roller and the second transmission roller, the first transmission roller and the second transmission roller are rotatably installed on the base plate through the first support plate, and the rotating shaft on the second transmission roller is rotationally connected to the third transmission roller through the first synchronous belt.

[0017] As a further solution of the present invention, the opposite friction conveying mechanism also includes an electric telescopic rod for fine-tuning the distance, the friction roller is rotatably connected through a plurality of third synchronous belts, the second roller mounting seat is fixedly connected to the piston rod of the electric telescopic rod, the electric telescopic rod is fixedly mounted on the support frame, and the support frame is fixedly mounted on the base plate.

[0018] As a further solution of the present invention, the guide roller mechanism includes a guide roller for a guide transmission connection, the guide roller is rotatably mounted on a first roller mounting seat, a first connecting block is fixedly connected to the first roller mounting seat, a second connecting block is slidingly connected to the first connecting block within a limited position, the second connecting block is fixedly mounted on a vertical plate, and a spring is provided at the internal connection between the second connecting block and the first connecting block.

[0019] As a further solution of the present invention, a second storage rack for storing materials to be processed and a first storage rack for storing finished materials are also provided on the bottom plate.

[0020] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0021] The fixed-length cutting drive mechanism provided in the present invention can realize the fixed-length cutting processing of the yarn net to be cut by the cutting blade on the lifting block, which is convenient for quickly completing the cutting operation and avoiding errors and delays that may occur during manual measurement and cutting, thereby significantly improving production efficiency. At the same time, the design of the detachable installation processing of the cutting blade can facilitate the rapid replacement of worn or damaged blades, reducing the time required for frequent interruptions of work to sharpen the blade or replace the entire tool due to blade blunting, thereby improving the overall production efficiency. The guide roller mechanism provided can realize the elastic guiding processing of the guide roller on the yarn net to be cut, so that the guided transmission processing of the yarn net to be cut can be realized according to different thicknesses.

[0022] The fixed-length cutting drive mechanism set up can synchronously drive the conveying drive mechanism to operate, so that the winding roller releases the yarn to be cut while the second conveyor belt drives the yarn to be cut for conveying processing. Thus, a state is formed that when the cutting blade moves down for cutting, the first conveyor belt and the second conveyor belt stop conveying and driving, so as to facilitate the cutting blade to move down for cutting. When the cutting blade is lifted after cutting, the first conveyor belt and the second conveyor belt are driven for conveying, so as to realize the continuous fixed-length cutting. This intermittent conveying method can be carried out synchronously with the cutting process to ensure that the yarn to be cut is promptly and stably conveyed to the next process after cutting is completed, thereby improving the continuity and efficiency of the entire production process.

[0023] The opposing friction conveying mechanism can realize the friction-driven transmission processing of the yarn to be cut by multiple friction rollers, and the electric telescopic rod can fine-tune the distance between the friction roller and the yarn to be cut, so as to control the position of the yarn to be cut during the processing, so that the yarn to be cut can always maintain a good position and tension during the cutting and conveying process, thereby avoiding dislocation or wrinkles and significantly improving the processing accuracy.

[0024] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of an embodiment of the invention.

[0026] Figure 2 It is a schematic side view of the structure of an embodiment of the invention.

[0027] Figure 3 It is a schematic diagram of the connection structure inside the first protective cover in an embodiment of the invention.

[0028] Figure 4 It is a schematic diagram of the cutting state structure in an embodiment of the invention.

[0029] Figure 5 Schematic diagram of the connection structure of the joystick in the embodiment of the invention.

[0030] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of A.

[0031] Figure 7 It is a schematic diagram of the exploded structure of the cutting blade connection in the embodiment of the invention.

[0032] Figure 8 It is a schematic diagram of the connection structure inside the first connection block in an embodiment of the invention.

[0033] Fig. 9 It is a schematic diagram of the connection structure inside the second protective cover in an embodiment of the invention.

[0034] Fig.10 It is a schematic diagram of the connection structure inside the support frame in an embodiment of the invention.

[0035] Fig.11 for Fig.10 Schematic diagram of the enlarged structure of B.

[0036] Fig.12 It is a schematic diagram of the side view structure of the internal connection of the support frame in an embodiment of the invention.

[0037] Fig.13 It is a schematic diagram of the connection structure of the friction roller in the embodiment of the invention.

[0038] 1. Bottom plate; 2. First storage rack; 3. Second storage rack; 4. Vertical plate; 5. First transmission roller; 6. Second transmission roller; 7. First support plate; 8. First conveyor belt; 9. First protective cover; 10. Joystick; 11. First connecting shaft; 12. Turntable; 13. First guide slide column; 14. First guide slide groove; 15. Second guide slide groove; 16. Second guide slide column; 17. Lifting block; 18. Dovetail slider; 19. Dovetail slide groove; 20. Mounting groove; 21. Cutting blade; 22. Limiting hole; 23. Fastening bolt; 24. Limiting block; 25. First roller mounting seat; 26. Guide roller; 27. First connecting block; 28. Second connecting block; 29. ​​Spring; 30. Third transmission roller; 3 1. The fourth transmission roller; 32. The second conveyor belt; 33. The first synchronous belt; 34. The yarn to be cut; 35. The winding roller; 36. The second synchronous belt; 37. The second roller mounting seat; 38. The electric telescopic rod; 39. The friction roller; 40. The third synchronous belt; 41. The second support plate; 42. The fourth synchronous belt; 43. The second connecting shaft; 44. The first worm gear; 45. The first worm; 46. The second worm; 47. The second worm gear; 48. The fifth synchronous belt; 49. The third connecting shaft; 50. The incomplete gear; 51. The first gear; 52. The second gear; 53. The fourth connecting shaft; 54. The fifth connecting shaft; 55. The motor; 56. The motor mounting plate; 57. The second protective cover; 58. The support frame; 59. The third gear. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0041] Example 1, see Figures 1 to 10 The invention discloses a mesh cutting machine for processing SMT steel mesh frames, comprising a bottom plate 1, on which a first conveyor belt 8 and a second conveyor belt 32 for conveying a mesh 34 to be cut are arranged, the first conveyor belt 8 and the second conveyor belt 32 are synchronously connected to the bottom plate 1, one side of the mesh 34 to be cut is wound around a winding roller 35, and both sides of the mesh 34 to be cut are provided with cutting blades 21 for cutting, and the cutting blades 21 are detachably mounted on a vertical plate 4, and further comprising:

[0042] The fixed-length cutting drive mechanism is installed on the vertical plate 4 and is used to drive the cutting blade 21 to perform reciprocating fixed-length cutting. The fixed-length cutting drive mechanism includes a joystick 10 and a turntable 12 for driving the cutting blade 21 to perform reciprocating cutting. A first guide slide column 13 is fixedly connected to the turntable 12. The joystick 10 is provided with a first guide slot 14 adapted to be slidably connected to the first guide slide column 13. One end of the joystick 10 is rotatably connected to the vertical plate 4 through a first connecting shaft 11.

[0043] The guide roller mechanism is installed on the vertical plate 4 and is used for elastically guiding the transmission of the yarn mesh 34 to be cut.

[0044] Furthermore, the fixed-length cutting drive mechanism also includes a second gear 52, a first gear 51 and a motor 55 for driving the turntable 12 to rotate towards each other. The turntable 12 is rotatably mounted on the vertical plate 4 through a fifth connecting shaft 54 ​​and a fourth connecting shaft 53. The second gear 52 is fixedly connected to the fifth connecting shaft 54, and the first gear 51 is fixedly connected to the fourth connecting shaft 53. The first gear 51 and the second gear 52 are meshingly connected. The fifth connecting shaft 54 ​​is fixedly connected to the output shaft of the motor 55. The motor 55 is fixedly mounted on the vertical plate 4 through a motor mounting plate 56. A second protective cover 57 for protection is provided on the outside of the motor 55.

[0045] Furthermore, the fixed-length cutting drive mechanism also includes a lifting block 17 for driving the cutting blade 21 to perform cutting. The cutting blade 21 is detachably mounted on the lifting block 17. The lifting block 17 is slidably connected to the vertical plate 4 through a dovetail slider 18. A dovetail groove 19 that is slidably connected to the dovetail slider 18 is provided on the vertical plate 4. A second guide slide column 16 is fixedly connected to the lifting block 17. A second guide slide column 15 that is slidably connected to the second guide slide column 16 is provided on the joystick 10. A first protective cover 9 for protection is provided on the outer side of the joystick 10.

[0046] Furthermore, a limiting block 24 is fixedly connected to the cutting blade 21, and a mounting groove 20 adapted for sliding connection with the cutting blade 21 and the limiting block 24 is provided on the lifting block 17. A limiting hole 22 for positioning installation is provided on the cutting blade 21, and a fastening bolt 23 for fastening and fixing the positioning installation is provided on the outer side of the lifting block 17. The fastening bolt 23 is adapted for movably connecting to the limiting hole 22, and the fastening bolt 23 is threadedly connected to the lifting block 17.

[0047] Furthermore, the guide roller mechanism includes a guide roller 26 for guiding the transmission connection, the guide roller 26 is rotatably mounted on the first roller mounting seat 25, the first roller mounting seat 25 is fixedly connected with a first connecting block 27, the first connecting block 27 is internally limited and slidably connected with a second connecting block 28, the second connecting block 28 is fixedly mounted on the vertical plate 4, and a spring 29 is provided at the internal connection between the second connecting block 28 and the first connecting block 27.

[0048] Furthermore, the bottom plate 1 is also provided with a second storage rack 3 for storing materials to be processed and a first storage rack 2 for storing finished materials.

[0049] Preferably, during the cutting process, the yarn mesh 34 to be cut is wound around and connected to the winding roller 35 and laid flat on the second conveyor belt 32 and the first conveyor belt 8. The output shaft of the motor 55 drives the fifth connecting shaft 54 ​​to rotate. Since the first gear 51 and the second gear 52 are in a mutually meshing position, the turntable 12 on the vertical plate 4 is driven to rotate towards each other, that is, the first guide slide column 13 on the turntable 12 is synchronously driven to rotate towards each other. Therefore, under the relationship of the first guide slide column 13 and the first guide slide groove 14 in the joystick 10 being adapted for sliding connection and the first connecting shaft 11 being rotationally connected, one end of the joystick 10 is driven to drive the lifting block 17 on the second guide slide column 16 to slide back and forth and be connected to the vertical plate 4, so that the cutting blade 21 on the lifting block 17 can cut the yarn mesh 34 to a fixed length, which is convenient for quickly completing the cutting operation and avoiding errors and delays that may occur during manual measurement and cutting, thereby significantly improving production efficiency.

[0050] In addition, the cutting blade 21 can be universally fastened by the fastening bolts 23 and the adaptable connection of the limiting holes 22 so that the cutting blade 21 can be detachably installed and connected to the lifting block 17, thereby realizing the maintenance of the cutting blade 21. The design of such a detachable blade can facilitate the rapid replacement of worn or damaged blades, reducing the time required for frequent interruptions of work to sharpen the blade or replace the entire tool due to blade blunting, thereby improving the overall production efficiency.

[0051] In addition, while cutting and conveying are being carried out, the guide roller 26 is connected to the top of the to-be-cut yarn net 34 for transmission and guidance, and the guide roller 26 is connected to the second connecting block 28 through a limited sliding connection by the first connecting block 27. The spring 29 built into the first connecting block 27 realizes the elastic guiding processing of the guide roller 26 on the to-be-cut yarn net 34, thereby realizing the guided transmission processing of the to-be-cut yarn net 34 according to different thicknesses.

[0052] Embodiment 2, as Figures 1 to 12 As shown, based on Example 1, this embodiment further includes a conveying drive mechanism, which is installed at the connection between the vertical plate 4 and the second conveyor belt 32, and is connected to the fixed-length cutting drive mechanism, for driving the second conveyor belt 32 and the first conveyor belt 8 for synchronous conveying, and the conveying drive mechanism includes a second worm 46 and a second worm wheel 47 for conveying drive, the second conveyor belt 32 is transmission-connected to the third transmission roller 30 and the fourth transmission roller 31, the rotating shaft on the fourth transmission roller 31 is fixedly connected to the second worm wheel 47, and the second worm wheel 47 is meshingly connected to the second worm 46.

[0053] Furthermore, the conveying drive mechanism also includes an incomplete gear 50 for driving the first conveyor belt 8 and the second conveyor belt 32 for intermittent conveying. The incomplete gear 50 is fixedly connected to the fourth connecting shaft 53. The incomplete gear 50 is meshed with a third gear 59. The third gear 59 is rotatably installed on the vertical plate 4 through the third connecting shaft 49. The third connecting shaft 49 is rotatably connected to the first worm 45 and the second worm 46 through the fifth synchronous belt 48. The third transmission roller 30 and the fourth transmission roller 31 are both rotatably installed on the base plate 1 through the second support plate 41. The winding roller 35 is rotatably connected to the fourth transmission roller 31 through the second synchronous belt 36.

[0054] Furthermore, the conveying drive mechanism also includes a first synchronous belt 33 for driving the first conveyor belt 8 for synchronous conveying. The first conveyor belt 8 is transmission-connected to the first transmission roller 5 and the second transmission roller 6. The first transmission roller 5 and the second transmission roller 6 are rotatably installed on the base plate 1 through the first support plate 7. The rotating shaft on the second transmission roller 6 is rotationally connected to the third transmission roller 30 through the first synchronous belt 33.

[0055] Preferably, in this embodiment, while the motor 55 drives the cutting blade 21 to perform reciprocating cutting, it also drives the incomplete gear 50 on the first gear 51 to rotate accordingly. Due to the incomplete design of the teeth of the incomplete gear 50, while the incomplete gear 50 rotates continuously, it also drives the third gear 59 on the third connecting shaft 49 to rotate intermittently, thereby driving the first worm 45 and the second worm 46 to rotate synchronously under the synchronous driving action of the fifth synchronous belt 48, thereby driving the fourth transmission roller 31 to rotate in the direction of the vertical plate 4 under the meshing connection between the second worm 46 and the second worm wheel 47, thereby realizing the second conveyor belt 32 to convey and transmit in the direction of the vertical plate 4, and the fourth transmission roller 31 is synchronously driven by the second synchronous belt 36 Under the driving action of the step, the winding roller 35 is driven to rotate synchronously, so that the winding roller 35 releases the to-be-cut yarn net 34 while the second conveyor belt 32 drives the to-be-cut yarn net 34 for conveying processing. Thus, a state is formed. When the cutting blade 21 moves down for cutting, the incomplete gear 50 rotates to the toothless position so that the third gear 59 stops rotating. At this time, the first conveyor belt 8 and the second conveyor belt 32 stop conveying and driving, so as to facilitate the cutting blade 21 to move down for cutting. When the cutting blade 21 is lifted after cutting, the incomplete gear 50 rotates to the toothed position so that the third gear 59 is driven to rotate, thereby driving the first conveyor belt 8 and the second conveyor belt 32 to convey and drive, thus realizing the continuous fixed-length cutting.

[0056] The intermittent conveying mode of the conveyor belt can be carried out synchronously with the cutting process, ensuring that the yarn mesh 34 to be cut is promptly and stably conveyed to the next process after cutting is completed, thereby improving the continuity and efficiency of the entire production process.

[0057] And when the corresponding third transmission roller 30 rotates, the second transmission roller 6 is driven to rotate under the synchronous driving action of the first synchronous belt 33, so that the first conveyor belt 8 drives the cut yarn 34 to be cut for feeding processing. Figure 4 shown.

[0058] Embodiment 3, as Figures 1 to 13 As shown, on the basis of the above-mentioned embodiments, the present embodiment further includes an opposing friction conveying mechanism, which is installed on the support frame 58 and is used for frictionally driving the to-be-cut yarn net 34 on the second conveyor belt 32 for conveying transmission. The opposing friction conveying mechanism includes a friction roller 39 and a first worm 45 for driving the to-be-cut yarn net 34 for transmission connection. The friction roller 39 is rotatably connected to the second roller mounting seat 37. The friction roller 39 is rotatably connected to the second connecting shaft 43 through the fourth synchronous belt 42. The second connecting shaft 43 is fixedly connected to the first worm gear 44. The first worm gear 44 is meshingly connected to the first worm gear 45. The first worm gear 45 and the second worm gear 46 are coaxially arranged and fixedly connected to each other. The first worm gear 45 and the second worm gear 46 are both rotatably installed on the support frame 58.

[0059] Furthermore, the opposing friction conveying mechanism also includes an electric telescopic rod 38 for fine-tuning the distance, the friction roller 39 is rotatably connected through a plurality of third synchronous belts 40, the second roller mounting seat 37 is fixedly connected to the piston rod of the electric telescopic rod 38, the electric telescopic rod 38 is fixedly mounted on the support frame 58, and the support frame 58 is fixedly mounted on the base plate 1.

[0060] Preferably, in this embodiment, the third connecting shaft 49 drives the first worm 45 to rotate under the synchronous driving action of the fifth synchronous belt 48. Since the first worm 45 and the second worm 46 have opposite rotation directions, the second connecting shaft 43 is driven to rotate under the meshing connection between the first worm 45 and the first worm wheel 44. The second connecting shaft 43 drives the friction roller 39 to rotate in the direction toward the winding roller 35 under the synchronous driving action of the fourth synchronous belt 42. At this time, the friction roller 39 and the fourth transmission roller 31 rotate in opposite directions, so that the yarn to be cut While the second conveyor belt 32 below the net 34 drives the yarn net 34 to be cut to be transported, the friction roller 39 above the yarn net 34 to be cut correspondingly drives the yarn net 34 to be cut for friction drive transmission, and the friction roller 39 is synchronously driven by multiple third synchronous belts 40, thereby realizing the friction drive transmission processing of the yarn net 34 to be cut by multiple friction rollers 39, and the electric telescopic rod 38 can fine-tune the distance between the friction roller 39 and the yarn net 34 to be cut, thereby realizing good driving of the yarn net 34 to be cut, which is convenient for subsequent cutting processing.

[0061] This synchronous driving method of the upper and lower parts of the yarn mesh 34 to be cut can well control the position of the yarn mesh 34 to be cut during the processing, so that the yarn mesh 34 to be cut always maintains a good position and tension during the cutting and conveying process, thereby avoiding dislocation or wrinkles and significantly improving the processing accuracy.

[0062] It should be particularly noted that the components in this application are all universal standard parts or components well known to those skilled in the art, which effectively solve the technical problems raised in the background technology.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Screen cutting machine for SMT steel screen frame processing, including base plate (1), It is characterized in that The bottom plate (1) is provided with a first conveyor belt (8) and a second conveyor belt (32) for conveying the yarn net (34) to be cut, the first conveyor belt (8) and the second conveyor belt (32) are both synchronously connected to the bottom plate (1), one side of the yarn net (34) to be cut is wound around a winding roller (35), and both sides of the yarn net (34) to be cut are provided with cutting blades (21) for cutting, and the cutting blades (21) are detachably mounted on the vertical plate (4), and further comprising: A fixed-length cutting drive mechanism, which is mounted on the vertical plate (4) and is used to drive the cutting blade (21) to perform reciprocating fixed-length cutting processing, the fixed-length cutting drive mechanism comprising a joystick (10) and a rotating disk (12) for driving the cutting blade (21) to perform reciprocating cutting, the rotating disk (12) being fixedly connected to a first guide slide post (13), the joystick (10) being provided with a first guide slide groove (14) adapted to be slidably connected to the first guide slide post (13), one end of the joystick (10) being rotatably connected to the vertical plate (4) via a first connecting shaft (11); a conveying drive mechanism, which is installed at the connection between the vertical plate (4) and the second conveyor belt (32), connected to the fixed-length cutting drive mechanism, and is used to drive the second conveyor belt (32) and the first conveyor belt (8) to perform synchronous conveying, the conveying drive mechanism comprising a second worm (46) and a second worm wheel (47) for conveying drive, the second conveyor belt (32) is drivingly connected to the third transmission roller (30) and the fourth transmission roller (31), the rotating shaft on the fourth transmission roller (31) is fixedly connected to the second worm wheel (47), and the second worm wheel (47) is meshingly connected to the second worm (46); A mutually opposed friction conveying mechanism, which is mounted on a support frame (58) and is used for frictionally driving the to-be-cut yarn web (34) on the second conveyor belt (32) for conveying transmission, the mutually opposed friction conveying mechanism comprising a friction roller (39) and a first worm (45) which are transmission-connected, the friction roller (39) being rotationally connected to the second roller mounting seat (37), the friction roller (39) being rotationally connected to a second connecting shaft (43) via a fourth synchronous belt (42), the second connecting shaft (43) being fixedly connected to a first worm wheel (44), the first worm wheel (44) being meshingly connected to a first worm (45), the first worm (45) and the second worm (46) being coaxially arranged and fixedly connected to each other, the first worm (45) and the second worm (46) being rotationally mounted on the support frame (58); A guide roller mechanism, which is mounted on the vertical plate (4) and is used to elastically guide the transmission of the yarn web (34) to be cut; The fixed-length cutting drive mechanism further comprises a second gear (52), a first gear (51) and a motor (55) for driving the rotating disk (12) to rotate in opposite directions; the rotating disk (12) is rotatably mounted on the vertical plate (4) via a fifth connecting shaft (54) and a fourth connecting shaft (53); the second gear (52) is fixedly connected to the fifth connecting shaft (54); the first gear (51) is fixedly connected to the fourth connecting shaft (53); the first gear (51) and the second gear (52) are meshingly connected; the fifth connecting shaft (54) is fixedly connected to an output shaft of the motor (55); the motor (55) is fixedly mounted on the vertical plate (4) via a motor mounting plate (56); and a second protective cover (57) for protection is provided on the outer side of the motor (55); The fixed-length cutting drive mechanism further comprises a lifting block (17) for driving the cutting blade (21) to perform cutting, the cutting blade (21) being detachably mounted on the lifting block (17), the lifting block (17) being limitedly slidably connected to the vertical plate (4) via a dovetail slider (18), the vertical plate (4) being provided with a dovetail slide groove (19) adapted to be slidably connected to the dovetail slider (18), the lifting block (17) being fixedly connected to a second guide slide column (16), the operating rod (10) being provided with a second guide slide groove (15) adapted to be slidably connected to the second guide slide column (16), and a first protective cover (9) for protection is arranged on the outer side of the operating rod (10); The cutting blade (21) is fixedly connected to a limiting block (24); the lifting block (17) is provided with a mounting groove (20) adapted to be slidably connected to the cutting blade (21) and the limiting block (24); the cutting blade (21) is provided with a limiting hole (22) for positioning installation; the outer side of the lifting block (17) is provided with a fastening bolt (23) for fastening and positioning installation; the fastening bolt (23) is adapted to be movably connected to the limiting hole (22), and the fastening bolt (23) is threadedly connected to the lifting block (17); The conveying drive mechanism further comprises an incomplete gear (50) for driving the first conveyor belt (8) and the second conveyor belt (32) for intermittent conveying, the incomplete gear (50) being fixedly connected to a fourth connecting shaft (53), a third gear (59) being meshedly connected to the incomplete gear (50), the third gear (59) being rotatably mounted on the vertical plate (4) via a third connecting shaft (49), the third connecting shaft (49) being rotatably connected to the first worm gear (45) and the second worm gear (46) via a fifth synchronous belt (48), the third transmission roller (30) and the fourth transmission roller (31) being rotatably mounted on the bottom plate (1) via a second support plate (41), and the winding roller (35) being rotatably connected to the fourth transmission roller (31) via a second synchronous belt (36).

2. The mesh cutting machine for SMT steel mesh frame processing according to claim 1, It is characterized in that The conveying drive mechanism further comprises a first synchronous belt (33) for driving the first conveying belt (8) for synchronous conveying, the first conveying belt (8) being transmission-connected to a first transmission roller (5) and a second transmission roller (6), the first transmission roller (5) and the second transmission roller (6) being rotationally mounted on the bottom plate (1) via a first support plate (7), and the rotating shaft on the second transmission roller (6) being rotationally connected to a third transmission roller (30) via the first synchronous belt (33).

3. The mesh cutting machine for SMT steel mesh frame processing according to claim 1, It is characterized in that The opposing friction conveying mechanism further comprises an electric telescopic rod (38) for fine-tuning the distance, the friction roller (39) being rotationally connected via a plurality of third synchronous belts (40), the second roller mounting seat (37) being fixedly connected to a piston rod of the electric telescopic rod (38), the electric telescopic rod (38) being fixedly mounted on a support frame (58), and the support frame (58) being fixedly mounted on a base plate (1).

4. The mesh cutting machine for SMT steel mesh frame processing according to claim 1, It is characterized in that The guide roller mechanism comprises a guide roller (26) for guiding the transmission connection, the guide roller (26) being rotatably mounted on a first roller mounting seat (25), a first connecting block (27) being fixedly connected to the first roller mounting seat (25), a second connecting block (28) being internally limited and slidably connected to the first connecting block (27), the second connecting block (28) being fixedly mounted on the vertical plate (4), and a spring (29) being provided at the internal connection between the second connecting block (28) and the first connecting block (27).

5. The mesh cutting machine for SMT steel mesh frame processing according to claim 1, It is characterized in that The bottom plate (1) is also provided with a second storage rack (3) for storing materials to be processed and a first storage rack (2) for storing finished materials.

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