A fixed cutting device for PCB production

Abstract

The utility model discloses a kind of fixed cutting device for PCB production, belong to PCB cutting technical field, its technical scheme main point includes cutting table, the left side of cutting table top is provided with controller, the present application is by setting pressure transport structure, limit side fixed structure and fixed cutting mechanism, pressure transport structure can automatically hold and transport PCB, without manual auxiliary positioning, both avoid the problem that positioning accuracy is influenced by operating experience, and shorten position adjustment time, effectively improve cutting efficiency, limit side fixed structure can be flexibly adjusted, can be adapted to PCB of different width specifications, both ensure that all kinds of PCB always transmit along correct path, solve the problem of poor adaptability, can also strengthen the limit of PCB from side, reduce the shaking when cutting, in fixed cutting mechanism, when hydraulic rod drives cross plate to move down, fixed pressure plate located at the bottom of cutting structure outside side first contact PCB, cooperate telescopic rod and spring to form elastic fixing.

Description

Technical Field

[0001] This utility model relates to the field of PCB board cutting technology, and in particular to a fixed cutting device for PCB board production. Background Technology

[0002] PCB, or Printed Circuit Board, is an important electronic component. It serves as the support for electronic components and the carrier for electrical interconnection. It gets its name from the electronic printing technology used in its production. In PCB production, there is a need for continuous cutting. Many electronic products use multi-panel PCBs. To improve production efficiency, long strips of PCBs often need to be continuously cut into smaller unit PCBs, such as cutting a 5-meter-long board into 50-centimeter-sized pieces. To meet this need, cutting equipment is required for the cutting operation.

[0003] Existing PCB board production cutting equipment has low flexibility and cannot adjust the position of the cutting disc according to cutting needs. When PCB boards need to be cut, manual positioning of the PCB board is often required, which takes a lot of time and reduces cutting efficiency. In addition, existing PCB board production cutting equipment cannot fix the PCB board, making it easy for the PCB board to move during the cutting process, causing a lot of inconvenience to users. An existing patent (publication number: CN217195715U) discloses a cutting device for PCB board production. This utility model provides a cutting device for PCB board production that is more flexible, facilitates the fixing of PCB boards, saves more manpower, and helps improve cutting efficiency.

[0004] To address the aforementioned issues, existing patents offer solutions, but existing cutting devices still have several core problems that require optimization: First, the transmission and positioning of PCB boards rely on manual assistance. Not only is the positioning accuracy easily affected by human operating experience, but the adjustment process is also time-consuming, directly leading to low cutting efficiency. Second, there is a lack of a stable and comprehensive fixing mechanism. During cutting, the PCB board is easily displaced or shaken by external forces such as the impact of the cutting blade, resulting in quality problems such as cutting size deviation and uneven cuts. Third, the side limiting structure has insufficient adjustment flexibility, making it difficult to quickly adapt to PCB boards of different widths and specifications. It cannot ensure that PCB boards of various widths are always transmitted along the correct path during the cutting process, resulting in poor adaptability. Fourth, the functional components (transmission, positioning, fixing, and cutting) of existing devices have weak coordination, requiring manual step-by-step operation to complete each stage of the operation. It cannot achieve automated and continuous operation of "transmission-positioning-fixing-cutting," which increases labor costs and is prone to equipment failure or operation interruption due to untimely or inaccurate operation connections.

[0005] Therefore, a fixed cutting device for PCB board production is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a fixed cutting device for PCB board production, which can solve the core problems that still exist in the existing cutting devices, including: First, the transmission and positioning of PCB boards rely on manual assistance. Not only is the positioning accuracy easily affected by human operating experience, but the adjustment process is also time-consuming, directly leading to low cutting efficiency. Second, there is a lack of a stable and comprehensive fixing mechanism. During cutting, the PCB board is easily deflected and shaken by external forces such as the impact of the cutting blade, which leads to quality problems such as cutting size deviation and uneven cut. Third, the side limit structure has insufficient adjustment flexibility, making it difficult to quickly adapt to PCB boards of different widths and specifications. It cannot ensure that PCB boards of various widths are always transmitted along the correct path during the cutting process, resulting in poor adaptability. Fourth, the functional components (transmission, positioning, fixing, and cutting) of the existing device have weak coordination. Each step of the operation needs to be manually controlled, and it is impossible to achieve automated and continuous operation of "transmission-positioning-fixing-cutting". This not only increases labor costs, but also easily leads to equipment failure or operation interruption due to untimely or inaccurate operation.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a fixed cutting device for PCB board production, comprising a cutting table, characterized in that: a controller is provided on the left side of the top of the cutting table, a pressure conveying structure is provided on the front side of the top of the cutting table, a limited side fixing structure is provided on the rear side of the pressure conveying structure, and a fixed cutting mechanism is provided on the rear side of the top of the cutting table. The fixed cutting mechanism includes a support frame bolted to the rear side of the top of the cutting table. A hydraulic rod is bolted to the top of the support frame, and the telescopic end of the hydraulic rod passes through the top of the support frame. A cross plate is fixedly connected to the telescopic end of the hydraulic rod. Telescopic rods are bolted to the front and rear sides of the bottom of the cross plate. A pressure plate is fixedly connected to the bottom of the telescopic rod. A spring is sleeved on the outside of the telescopic rod. The top of the spring contacts the bottom of the cross plate, and the bottom of the spring is fixedly connected to the top of the pressure plate. A cutting structure is provided in the middle of the bottom of the cross plate, and the cutting structure is located on the top of the inner side of the pressure plate.

[0008] Preferably, the cutting structure includes a connecting block fixedly connected to the middle of the bottom of the cross plate, and a hanging sleeve is welded to the bottom of the connecting block.

[0009] Preferably, a variable frequency motor is installed inside the hanging sleeve, and the variable frequency motor is electrically connected to the controller.

[0010] Preferably, a cutting blade is fixedly connected to the output end of the variable frequency motor. The cutting blade is located at the top of the inner side of the pressure plate, and a protective cover is bolted to the front side of the bottom of the cross plate. The protective cover is located at the top of the cutting blade.

[0011] Preferably, the pressure conveying structure includes support rods, which are respectively bolted to both sides of the front side of the top of the cutting table. The inner side of the support rod is provided with a lifting groove, and the top of the right support rod is bolted with an electric push rod, the telescopic end of which passes through the top of the right support rod.

[0012] Preferably, a lifting block is slidably connected inside the lifting groove, the top of the right lifting block is fixedly connected to the telescopic end of the electric push rod, an elastic pressure roller is rotatably connected to the inner side of the lifting block, a servo motor is bolted to the left side of the left support rod, a conveying roller is rotatably connected to the bottom of the inner side of the support rod, the left side of the conveying roller is fixedly connected to the output end of the servo motor, and the conveying roller is located at the bottom of the elastic pressure roller.

[0013] Preferably, the side-fixing structure includes a hanger welded to the rear side of the support rod, an auxiliary feeding shaft is rotatably connected to the front side inside the hanger, the auxiliary feeding shaft is located behind the conveying roller, and a sliding groove is provided on the top side inside the hanger.

[0014] Preferably, a drive motor is bolted to the left side of the hanger, and a bidirectional lead screw is fixedly connected to the output end of the drive motor. The bidirectional lead screw is located inside the slide groove, and limit stop blocks are threaded to both sides of the surface of the bidirectional lead screw.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This application sets up a pressure conveying structure, a side-fixing structure, and a fixed cutting mechanism. The pressure conveying structure can automatically press and transport the PCB board without manual positioning assistance. This avoids the problem of positioning accuracy being affected by operating experience and shortens the position adjustment time, effectively improving cutting efficiency. The side-fixing structure can be flexibly adjusted to adapt to PCB boards of different widths. This ensures that all types of PCB boards are always transported along the correct path, solving the problem of poor adaptability. It can also strengthen the PCB board's limiting from the side, reducing shaking during cutting. In the fixed cutting mechanism, when the hydraulic rod drives the cross plate to move down, the pressure plate located at the bottom of the outer side of the cutting structure contacts the PCB board first. It works with the telescopic rod and spring to form an elastic fixation, which can form a stable and comprehensive fixation of the PCB board, preventing deviation and shaking due to external forces during cutting. It can also avoid damage to the PCB board due to excessive fixing pressure. At the same time, it realizes the coordinated operation of "transmission-positioning-fixing", reducing manual step-by-step operation and reducing labor costs and the risk of failure caused by operation connection. 2. This application sets up a cutting structure that works in conjunction with the pressure plate of the fixed cutting mechanism: the cutting structure is located on the top inner side of the pressure plate. After the pressure plate stably fixes the PCB board, the cutting structure continues to move downward with the cross plate. During this process, the telescopic rod and spring are indirectly compressed, further ensuring the stability when cutting the PCB board. At this time, the cutting structure starts to operate, which can effectively avoid the PCB board from shifting due to the impact of the cutting blade, reduce quality problems such as cutting size deviation and uneven cut, and further ensure cutting accuracy and product quality. At the same time, the cutting process is coordinated with the fixing and transmission links to help realize the automated and continuous operation of "transmission-positioning-fixing-cutting". Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the PCB board production fixing and cutting device of this utility model; Figure 2 This is a structural diagram of the pressure transmission structure of this utility model; Figure 3 This is a structural diagram of the edge-limiting side-fixing structure of this utility model; Figure 4 This is a structural diagram of the fixed cutting mechanism of this utility model; Figure 5 This is a structural diagram of the cutting structure of this utility model.

[0017] In the diagram, 1. Cutting table; 2. Controller; 3. Pressure conveying structure; 31. Support rod; 32. Lifting groove; 33. Electric push rod; 34. Lifting block; 35. Elastic pressure conveying roller; 36. Servo motor; 37. Conveying roller; 4. Side-limiting and side-fixing structure; 41. Hanger; 42. Auxiliary conveying shaft; 43. Slide groove; 44. Drive motor; 45. Bidirectional lead screw; 46. Limiting and side-stopping block; 5. Fixed cutting mechanism; 51. Support frame; 52. Hydraulic rod; 53. Cross plate; 54. Telescopic rod; 55. Fixed pressure plate; 56. Spring; 57. Cutting structure; 571. Connecting block; 572. Hanging sleeve; 573. Variable frequency motor; 574. Cutting blade; 575. Protective cover. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 The present invention provides the following technical solution: A fixed cutting device for PCB board production includes a cutting table 1, a controller 2 is provided on the left side of the top of the cutting table 1, a pressure conveying structure 3 is provided on the front side of the top of the cutting table 1, a limited side fixing structure 4 is provided on the rear side of the pressure conveying structure 3, and a fixed cutting mechanism 5 is provided on the rear side of the top of the cutting table 1. The fixed cutting mechanism 5 includes a support frame 51 bolted to the rear side of the top of the cutting table 1. A hydraulic rod 52 is bolted to the top of the support frame 51. The telescopic end of the hydraulic rod 52 passes through the top of the support frame 51. A cross plate 53 is fixedly connected to the telescopic end of the hydraulic rod 52. Telescopic rods 54 are bolted to the front and rear sides of the bottom of the cross plate 53. A pressure plate 55 is fixedly connected to the bottom of the telescopic rods 54. A spring 56 is sleeved on the outside of the telescopic rods 54. The top of the spring 56 contacts the bottom of the cross plate 53. The bottom of the spring 56 is fixedly connected to the top of the pressure plate 55. A cutting structure 57 is provided in the middle of the bottom of the cross plate 53. The cutting structure 57 is located on the top of the inner side of the pressure plate 55.

[0020] In this embodiment: by setting up a cutting table 1, a controller 2, a pressure conveying structure 3, a side-fixing structure 4, and a fixed cutting mechanism 5, during operation, the controller 2 coordinates the coordinated operation of each structure. First, the PCB board is fed into the pressure conveying structure 3 and automatically pressed and transferred to the side-fixing structure 4. No manual intervention is required during the process, reducing positioning time. The side-fixing structure 4 flexibly adjusts the limiting width according to the width of the PCB board, forming a stable constraint on the PCB board from the side, ensuring that it is accurately conveyed to the fixed cutting mechanism 5 along the preset path. When the PCB board reaches the cutting position, the controller 2 drives the hydraulic rod 52 of the fixed cutting mechanism 5 to extend, causing the cross plate 53 to move down as a whole: the pressure plate 55 located outside the cutting structure 57 first contacts the surface of the PCB board. As the cross plate 53 continues to move down, the telescopic rod 54 The spring 56 is compressed and retracted, using its elastic force to create a clamping force that securely fixes the PCB board while preventing damage from excessive pressure. After the fixing plate 55 is fixed, the cross plate 53 continues to move downwards, causing the cutting structure 57 to contact the PCB board. At this point, the cutting structure 57 starts operating. During the cutting process, the elastic buffering effect of the spring 56, combined with the side limiting of the edge fixing structure 4, effectively counteracts the force generated by the impact of the cutting blade 574, preventing the PCB board from shifting or shaking. After the cutting is completed, the hydraulic rod 52 retracts, causing the cross plate 53 to move upwards, and the fixing plate 55 is lifted to release the fixation. The pressure conveying structure 3 continues to convey the PCB board, completing the subsequent cutting cycle. The entire process achieves automated and continuous operation of "transmission-limiting-fixing-cutting-resetting", greatly improving work efficiency and cutting accuracy.

[0021] Specifically, such as Figure 5 As shown, the cutting structure 57 includes a connecting block 571 fixedly connected to the middle of the bottom of the cross plate 53, and a hanging sleeve 572 is welded to the bottom of the connecting block 571.

[0022] Specifically, such as Figure 5 As shown, a variable frequency motor 573 is installed inside the hanging sleeve 572, and the variable frequency motor 573 is electrically connected to the controller 2.

[0023] Specifically, such as Figure 5 As shown, a cutting blade 574 is fixedly connected to the output end of the variable frequency motor 573. The cutting blade 574 is located on the top of the inner side of the pressure plate 55. A protective cover 575 is bolted to the front side of the bottom of the cross plate 53. The protective cover 575 is located on the top of the cutting blade 574.

[0024] In this embodiment: by setting the cutting structure 57, the connecting block 571 and the hanging sleeve 572 provide a stable installation base for the variable frequency motor 573. The controller 2 can adjust the speed of the variable frequency motor 573 according to the PCB board material, so that the cutting blade 574 can adapt to different cutting needs. During cutting, the protective cover 575 can block the flying debris and improve the safety of operation. At the same time, the cutting blade 574 is located on the top of the inner side of the pressure plate 55, ensuring that the PCB board is completely fixed by the pressure plate 55 before cutting, further ensuring the cutting accuracy.

[0025] Specifically, such as Figure 2 As shown, the pressure conveying structure 3 includes a support rod 31, which is bolted to both sides of the front top of the cutting table 1. A lifting groove 32 is provided on the inner side of the support rod 31. An electric push rod 33 is bolted to the top of the right support rod 31, and the telescopic end of the electric push rod 33 passes through the top of the right support rod 31.

[0026] Specifically, such as Figure 2 As shown, a lifting block 34 is slidably connected inside the lifting groove 32. The top of the right lifting block 34 is fixedly connected to the telescopic end of the electric push rod 33. An elastic pressure roller 35 is rotatably connected to the inner side of the lifting block 34. A servo motor 36 is bolted to the left side of the left support rod 31. A conveying roller 37 is rotatably connected to the bottom of the inner side of the support rod 31. The left side of the conveying roller 37 is fixedly connected to the output end of the servo motor 36. The conveying roller 37 is located at the bottom of the elastic pressure roller 35.

[0027] In this embodiment: by setting up the pressure conveying structure 3, the controller 2 controls the extension and retraction of the electric push rod 33, which drives the lifting block 34 to move along the lifting groove 32, thereby realizing the height adjustment of the elastic pressure conveying roller 35 to adapt to PCB boards of different thicknesses. The servo motor 36 drives the conveying roller 37 to rotate, which, together with the elastic pressure conveying roller 35, forms a clamping and transmission force to stably convey the PCB board, avoid slippage or deviation during the transmission process, and ensure that the PCB board accurately enters the subsequent process.

[0028] Specifically, such as Figure 3As shown, the side-fixed structure 4 includes a hanger 41 welded to the rear side of the support rod 31. An auxiliary conveying shaft 42 is rotatably connected to the front side inside the hanger 41. The auxiliary conveying shaft 42 is located behind the conveying roller 37. A sliding groove 43 is provided on the top side inside the hanger 41.

[0029] Specifically, such as Figure 3 As shown, a drive motor 44 is bolted to the left side of the hanger 41. A bidirectional lead screw 45 is fixedly connected to the output end of the drive motor 44. The bidirectional lead screw 45 is located inside the slide groove 43. Limiting stop blocks 46 are threaded to both sides of the surface of the bidirectional lead screw 45.

[0030] In this embodiment: by setting the edge-limiting side fixing structure 4, the drive motor 44 drives the bidirectional lead screw 45 to rotate, so that the limit edge blocks 46 on both sides move synchronously in opposite directions along the slide groove 43, quickly adjusting the spacing to adapt to PCB boards of different widths. The auxiliary conveying shaft 42 assists in conveying the PCB board, and works with the limit edge blocks 46 to limit the PCB board from both sides, ensuring that it is stably transmitted to the cutting position along the preset path, reducing lateral shaking during cutting.

[0031] Working Principle: During the use of the fixed cutting device for PCB board production, the operator first presets parameters according to the thickness and width of the PCB board to be cut through the controller 2. For the thickness, the controller 2 adjusts the extension and retraction of the electric push rod 33 at the top of the right support rod 31 in the pressure conveying structure 3, which drives the lifting block 34 to slide up and down along the lifting groove 32, thereby adjusting the distance between the elastic pressure conveying roller 35 and the lower conveying roller 37 to ensure that it matches the thickness of the PCB board. For the width, the controller 2 starts the drive motor 44 of the side-limiting fixing structure 4, which drives the bidirectional lead screw 45 in the slide groove 43 of the hanger 41 to rotate, so that the two side-limiting edge blocks 46 move synchronously in opposite directions along the slide groove 43 until the distance matches the width of the PCB board, completing the initial debugging. Then the PCB board is placed on the... On the conveying roller 37 of the pressure conveying structure 3, after the device is started, the controller 2 activates the servo motor 36 of the left support rod 31. The servo motor 36 drives the conveying roller 37 to rotate, forming a stable clamping and transmission force with the elastic pressure conveying roller 35, automatically conveying the PCB board forward. During the transmission process, the elastic characteristics of the elastic pressure conveying roller 35 ensure the clamping force on the PCB board while avoiding scratches on the board surface. At the same time, the PCB board enters the area of ​​the edge-limiting side-fixing structure 4, and the side-limiting edge blocks 46 constrain it laterally. The auxiliary conveying shaft 42 in the hanger 41 assists in the rotation, guiding the PCB board to be accurately conveyed below the fixed cutting mechanism 5 along the preset path. No manual positioning is required, reducing adjustment time. When the PCB board reaches the cutting position directly below the fixed cutting mechanism 5... When the controller 2 drives the hydraulic rod 52 at the top of the support frame 51 to extend, it causes the cross plate 53 to move vertically downwards. At this time, the fixing plate 55 at the bottom of the cross plate 53, located outside the cutting structure 57, first contacts the PCB board surface. As the hydraulic rod 52 continues to extend, the cross plate 53 moves further downwards, the telescopic rod 54 is compressed, and the outer spring 56 deforms synchronously. The elastic reaction force of the spring 56 forms a uniform elastic clamping force, which fully and firmly fixes the PCB board on the cutting table 1. This avoids excessive fixing pressure that could cause deformation or damage to the PCB board, and also prevents the board from shifting during subsequent cutting. After the fixing plate 55 is fixed, the cross plate 53 continues to move downwards with the hydraulic rod 52, causing the cutting structure 57 at the bottom center of the cross plate 53 to gradually approach P. When the PCB board is cut, the controller 2 synchronously starts the variable frequency motor 573 inside the hanging sleeve 572 in the cutting structure 57. The speed of the variable frequency motor 573 is adjusted according to the material of the PCB board (such as fiberglass board, epoxy board), driving the cutting blade 574 at the output end to rotate at high speed for precise cutting of the PCB board. During the cutting process, the protective cover 575 on the front side of the bottom of the cross plate 53 can block the flying debris generated by cutting, ensuring operational safety. At the same time, the elastic buffering effect of the spring 56 can offset the reaction force generated by the impact of the cutting blade 574. Combined with the lateral limiting of the edge-fixing structure 4, it further prevents the PCB board from shaking, ensuring a flat cut and accurate dimensions. After the cutting is completed, the controller 2 drives the hydraulic rod 52 to retract, moving the cross plate 53 upward, and the fixing plate 55 is raised accordingly.After releasing the PCB board from its fixation, the servo motor 36 continues to drive the conveyor roller 37 to rotate. Using the uncut PCB board, the PCB board that has been cut and is resting on top of the cutting table 1 (whose surface is coated with PTFE, resulting in a low coefficient of friction that does not affect the PCB board's sliding) is ejected and then collected and conveyed to the next process. Simultaneously, a new PCB board to be cut is fed into the device, starting the next cutting cycle. The entire process is coordinated and controlled by the controller 2, achieving automated and continuous operation of "thickness adaptation - width limitation - automatic transmission - elastic fixing - precise cutting - cyclic operation," significantly improving PCB board cutting efficiency and product quality while reducing labor costs and the risk of operational errors.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixed cutting device for PCB board production, comprising a cutting table (1), characterized in that: A controller (2) is provided on the left side of the top of the cutting table (1), a pressure conveying structure (3) is provided on the front side of the top of the cutting table (1), a limited side fixing structure (4) is provided on the rear side of the pressure conveying structure (3), and a fixed cutting mechanism (5) is provided on the rear side of the top of the cutting table (1). The fixed cutting mechanism (5) includes a support frame (51) bolted to the rear side of the top of the cutting table (1). A hydraulic rod (52) is bolted to the top of the support frame (51). The telescopic end of the hydraulic rod (52) passes through the top of the support frame (51). A cross plate (53) is fixedly connected to the telescopic end of the hydraulic rod (52). Telescopic rods (54) are bolted to the front and rear sides of the bottom of the cross plate (53). A pressure plate (55) is fixedly connected to the bottom of the telescopic rod (54). A spring (56) is sleeved on the outside of the telescopic rod (54). The top of the spring (56) contacts the bottom of the cross plate (53). The bottom of the spring (56) is fixedly connected to the top of the pressure plate (55). A cutting structure (57) is provided in the middle of the bottom of the cross plate (53). The cutting structure (57) is located at the top of the inner side of the pressure plate (55).

2. The PCB board production fixing and cutting device according to claim 1, characterized in that: The cutting structure (57) includes a connecting block (571) fixedly connected to the middle of the bottom of the cross plate (53), and a hanging sleeve (572) is welded to the bottom of the connecting block (571).

3. The fixed cutting device for PCB board production according to claim 2, characterized in that: The inside of the hanging sleeve (572) is equipped with a variable frequency motor (573), which is electrically connected to the controller (2).

4. The PCB board production fixing and cutting device according to claim 3, characterized in that: The output end of the variable frequency motor (573) is fixedly connected to a cutting blade (574). The cutting blade (574) is located at the top of the inner side of the pressure plate (55). A protective cover (575) is bolted to the front side of the bottom of the cross plate (53). The protective cover (575) is located at the top of the cutting blade (574).

5. The PCB board production fixing and cutting device according to claim 1, characterized in that: The pressure conveying structure (3) includes a support rod (31), which is bolted to both sides of the front top of the cutting table (1). The support rod (31) has a lifting groove (32) on its inner side. An electric push rod (33) is bolted to the top of the right support rod (31), and the telescopic end of the electric push rod (33) passes through the top of the right support rod (31).

6. The PCB board production fixing and cutting device according to claim 5, characterized in that: The lifting groove (32) is slidably connected to a lifting block (34). The top of the right lifting block (34) is fixedly connected to the telescopic end of the electric push rod (33). The inner side of the lifting block (34) is rotatably connected to an elastic pressure roller (35). The left side of the left support rod (31) is bolted to a servo motor (36). The bottom of the inner side of the support rod (31) is rotatably connected to a conveying roller (37). The left side of the conveying roller (37) is fixedly connected to the output end of the servo motor (36). The conveying roller (37) is located at the bottom of the elastic pressure roller (35).

7. The fixed cutting device for PCB board production according to claim 1, characterized in that: The side-fixed structure (4) includes a hanger (41) welded to the rear side of the support rod (31). An auxiliary conveying shaft (42) is rotatably connected to the front side inside the hanger (41). The auxiliary conveying shaft (42) is located behind the conveying roller (37). A sliding groove (43) is provided on the top side inside the hanger (41).

8. The fixed cutting device for PCB board production according to claim 7, characterized in that: A drive motor (44) is bolted to the left side of the hanger (41). A bidirectional lead screw (45) is fixedly connected to the output end of the drive motor (44). The bidirectional lead screw (45) is located inside the slide groove (43). Limiting stop blocks (46) are threaded to both sides of the surface of the bidirectional lead screw (45).

Images