Hobbing mill for circuit board production

Abstract

The utility model discloses a slitting mill for circuit board production, and relates to the technical field of circuit board processing equipment. A fixing rod is mounted on the upper surface of the base, an auxiliary hobbing frame is further mounted on the upper surface of the base, hobbing supporting frames are mounted on the two sides of the base, driving devices are mounted on the hobbing supporting frames, hobbing structures are mounted on the driving devices, a fixing structure is mounted on one side of the base, and fixing holes are formed in the four corners of the base. A circuit board is placed on the fixing rod, the hobbing blade performs hobbing operation along the hobbing supporting frame, when the circuit board is too thick, the upper spring can be compressed through adjustment, when the blade is in contact with the circuit board, the lower spring enables the blade to move on the upper surface of the circuit board, and the circuit board is fixed through the hobbing blade due to the fact that the upper spring is compressed. Therefore, the hobbing blade can release larger force downwards, operation is conducted downwards on the upper surface of the circuit board, the cutting knife face of the device is smooth, and the device can adapt to circuit boards of any thickness.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board processing equipment, and in particular relates to a rolling cutter for circuit board production. Background Art

[0002] Circuit board is a basic component commonly used in electronic devices, used to connect electronic components and realize the functions of circuits. Circuit board usually consists of three parts: substrate, copper foil and solder mask. It connects components and integrated circuits (IC) through circuit wiring design to realize the functions of electronic devices. Circuit board can not only provide circuit connectivity and positioning, but also improve the stability and reliability of circuit, reduce the volume and weight of circuit, and facilitate maintenance and upgrading. Compared with traditional point-to-point wiring, circuit board has the advantages of high density, high reliability, high maintainability and low cost, and has become one of the indispensable core technologies in the manufacture of modern electronic products.

[0003] In the prior art, circuit boards are first produced in large blocks, and then the waste is cut by a rolling cutter to separate the small blocks. However, for high-precision electronic parts such as circuit boards, the slightest carelessness during rolling can cause damage to them. If they are not fixed properly, they will cut the electronic circuits or fine parts. When the circuit board is too thick, it cannot be flexibly adjusted, which increases its working time and produces unnecessary troubles.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a rolling cutting machine for circuit board production to overcome the above technical problems existing in the existing related technology.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a rolling cutting machine for circuit board production, comprising a base, a fixing rod is installed on the upper surface of the base, an auxiliary rolling cutting frame is also installed on the upper surface of the shell, rolling cutting support frames are installed on both sides of the base, a driving device is installed on the rolling cutting support frame, a rolling cutting structure is installed on the driving device, a fixing structure is installed on one side of the base, and fixing holes are opened at the four corners of the base.

[0008] Furthermore, the driving device comprises a threaded rod, the axis of the threaded rod passes through the rolling support frame and is rotatably mounted thereon. A positioning shaft is mounted on one side of the rolling support frame, and the positioning shaft and the threaded rod are in an axis-parallel relationship.

[0009] Furthermore, the rolling cutting structure includes a rolling cutting frame, one side of the rolling cutting frame passes through and is threadedly installed on the threaded rod, the rolling cutting frame is provided with a hole, the positioning shaft passes through the hole, the upper surface of the rolling cutting frame is provided with a non-circular hole that passes through the lower surface, a rolling cutting rod is installed through the non-circular hole, the non-circular hole is adapted to the rolling cutting rod, a rolling cutting column is installed on one side of the lower end of the rolling cutting rod, and a rolling cutting blade is installed on the axis of the other end of the rolling cutting column.

[0010] Furthermore, an adjustment ring is installed around the axis of the outer surface of the rolling rod, an adjustment tube is installed on the outer surface of the adjustment ring, the outer surface of the adjustment ring is threadedly installed on the inner surface of the adjustment tube, the adjustment tube is installed on the upper surface of the rolling frame, and an area of ​​the adjustment ring less than 1\2 is exposed outside the adjustment tube, an upper spring is installed around the rolling rod on the lower surface of the adjustment ring, a lower spring is installed on the lower surface of the rolling frame, the lower spring is installed around the rolling rod, and a spring fixing ring is installed on the lower end of the lower spring and the outer surface of the rolling rod.

[0011] Furthermore, the fixing structure includes a lower fixing plate, the lower fixing plate is installed on one side of the base, the upper surface of the lower fixing plate is flush with the upper surface of the auxiliary rolling cutting frame, an adjusting screw is installed on one side of the lower fixing plate, the axis of the adjusting screw passes through an upper fixing plate, the upper fixing plate and the lower fixing plate have the same size, the upper fixing plate and the adjusting screw are threadedly connected, the outer surface of the adjusting screw is covered with a shell, the lower part of the shell is installed on the upper surface of the lower fixing plate, the shell is provided with a slideway on the side closest to the upper fixing plate, the upper part of the adjusting screw passes through the shell and extends to the outside, the upper part of the adjusting screw is installed with a rotating rod, and a rotating handle is movably installed on the upper surface of one end of the rotating rod.

[0012] Furthermore, the driving device also includes a motor, a driving shaft is installed on the motor axis, the driving shaft is connected to the threaded rod, and the lower part of the motor is installed on the rolling cutting support frame.

[0013] Furthermore, the outer surface of the regulating tube is engraved with scales.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model places the circuit board on a fixed rod, and performs rolling cutting along a rolling cutting support frame by a rolling cutting blade to cut away unnecessary waste materials. When the circuit board is too thick, the upper spring can be compressed by adjusting the adjusting ring. When the rolling cutting blade contacts the too thick circuit board, the lower spring will be compressed to make the rolling cutting blade go on the upper surface of the circuit board. Because the upper spring has been compressed in advance, the rolling cutting blade will release a greater force downward at this time, thereby operating downward on the upper surface of the circuit board, so that the cutting surface of the device is smooth, and it can cope with circuit boards of any thickness.

[0016] 2. The utility model can fix the circuit board during the rolling cutting operation by installing the fixing structure and the fixing hole, so that the circuit board can be cut according to the predetermined line during rolling cutting, so that the electronic circuit or fine parts of the circuit board will not be cut by mistake. The upper fixing plate can be adjusted by operating the rotating handle to fix the circuit boards of different thicknesses, so that when the device is used on the circuit boards of different thicknesses, they can also be firmly fixed.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the rolling cutting structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the fixing structure of the utility model;

[0024] Figure 6 For the utility model Figure 4 Enlarged structural diagram at A in the middle.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Base; 2. Fixed rod; 3. Auxiliary rolling cutting frame; 4. Rolling cutting support frame; 5. Rolling cutting structure; 6. Driving device; 7. Fixed structure; 8. Fixed hole; 9. Threaded rod; 10. Positioning shaft; 11. Rolling cutting frame; 12. Hole; 13. Non-circular hole; 14. Rolling cutting rod; 15. Rolling cutting column; 16. Rolling cutting blade; 17. Adjustment ring; 18. Adjustment tube; 19. Upper spring; 20. Lower spring; 21. Spring fixing ring; 22. Lower fixing plate; 23. Driving shaft; 24. Adjustment screw; 25. Upper fixing plate; 26. Shell; 27. Motor; 28. Slide; 29. ​​Rotating rod; 30. Rotating handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] See also Figure 1-Figure 6 As shown, the utility model is a rolling cutting machine for circuit board production, comprising a base 1, a fixing rod 2 is installed on the upper surface of the base 1, an auxiliary rolling cutting frame 3 is also installed on the upper surface of the base 1, rolling cutting support frames 4 are installed on both sides of the base 1, a driving device 6 is installed on the rolling cutting support frame 4, a rolling cutting structure 5 is installed on the driving device 6, a fixing structure 7 is installed on one side of the base 1, and fixing holes 8 are opened at the four corners of the base 1.

[0030] By installing a fixing rod 2 on the base 1, the circuit board to be cut is placed on the fixing rod 2, and then the rolling cutting structure 5 installed on the rolling cutting support frame 4 performs reciprocating rolling cutting motion along the set auxiliary rolling cutting frame 3 to cut and separate the waste of the circuit board. When the circuit board is thicker, the rolling cutting structure 5 can be adjusted according to the thickness for cutting. The driving device 6 can drive the rolling cutting structure 5 to drive, so that the rolling cutting operation does not need to rely on manual operation. The fixed structure 7 is installed to adjust and fix according to the thickness of the circuit board. The fixing holes 8 opened at the four corners of the base 1 can prevent the device from shaking when in use, thereby improving the stability and accuracy of the entire device during the rolling cutting operation.

[0031] During use, the driving device 6 drives the rolling cutting structure 5 to cut circuit boards of different thicknesses, thereby greatly expanding the use range of the device. The installed fixing structure 7 and the opened fixing holes 8 can also firmly fix the circuit boards of different thicknesses when used, so that the device will not deviate and cut fine parts or electronic circuits due to unstable fixation, thereby reducing some unnecessary troubles and annoyances during rolling cutting operations.

[0032] In one embodiment, for the above-mentioned driving device 6, the driving device 6 includes a threaded rod 9, the threaded rod 9 is axially penetrated and rotatably installed on the rolling cutting support frame 4, and a positioning shaft 10 is installed on one side of the rolling cutting support frame 4, and the positioning shaft 10 and the threaded rod 9 are axially parallel.

[0033] The threaded rod 9 installed on the rolling cutting support frame 4 can enable the rolling cutting structure to perform reciprocating motion to achieve the purpose of rolling cutting. A positioning shaft 10 that is parallel to the axis of the threaded rod 9 and has the same length as the axis of the threaded rod 9 is installed on one side of the rolling cutting support frame 4, so as to position the rolling cutting structure 5, so that it will only perform reciprocating motion according to the threaded rod 9 and will not rotate itself.

[0034] In one embodiment, for the above-mentioned rolling cutting structure 5, the rolling cutting structure 5 includes a rolling cutting frame 11, one side of the rolling cutting frame 11 penetrates and is threadedly installed on the threaded rod 9, the rolling cutting frame 11 is provided with a hole 12, the positioning shaft 10 penetrates the hole 12, the upper surface of the rolling cutting frame 11 is provided with a non-circular hole 13 that penetrates the lower surface, the non-circular hole 13 is penetrated and installed with a rolling cutting rod 14, the non-circular hole 13 is adapted to the rolling cutting rod 14, a rolling cutting column 15 is installed on one side of the lower end of the rolling cutting rod 14, and a rolling cutting blade 16 is installed on the axis of the other end of the rolling cutting column 15.

[0035] A non-circular hole 13 is provided on the rolling cutting frame 11, and a rolling cutting rod 14 is installed in the non-circular hole 13. A rolling cutting column 15 is installed at the lower end of the rolling cutting rod 14, and a rolling cutting blade 16 is installed on the rolling cutting column 15. Then, one side of the rolling cutting frame 11 is threadedly installed on the threaded rod 9, and the hole 12 provided on the rolling cutting frame 11 is threadedly installed on the positioning shaft 10, so that the rolling cutting frame 11 reciprocates under the drive of the positioning shaft 10 and the threaded rod 9, so that when the rolling cutting blade 16 moves, the circuit board is rolled and cut on the auxiliary rolling cutting frame 3, thereby achieving the function of the device, making the rolling cutting process simple and rapid.

[0036] In one embodiment, for the above-mentioned rolling rod 14, an adjusting ring 17 is installed around the axis of the outer surface of the rolling rod 14, an adjusting tube 18 is installed on the outer surface of the adjusting ring 17, the outer surface of the adjusting ring 17 is threadedly installed on the inner surface of the adjusting tube 18, the adjusting tube 18 is installed on the upper surface of the rolling frame 11, and an area less than 1\2 of the adjusting ring 17 is exposed outside the adjusting tube 18, an upper spring 19 is installed around the rolling rod 14 on the lower surface of the adjusting ring 17, a lower spring 20 is installed on the lower surface of the rolling frame 11, the lower spring 20 is installed around the rolling rod 14, and a spring fixing ring 21 is installed on the lower end of the lower spring 20 and the outer surface of the rolling rod 14.

[0037] When used for circuit boards with too thick thickness, the adjusting ring 17 installed on the rolling rod 14 and the adjusting tube 18 installed above the rolling frame 11 are adjusted by thread rotation, and less than 1 / 2 of the adjusting ring 17 is exposed outside the adjusting tube 18, so that it can be better rotated and adjusted, so that the upper spring 19 surrounding the rolling rod 14 below the adjusting ring 17 can be compressed, so that it can generate greater force. When the rolling blade 16 contacts the thicker circuit board, the installed lower spring 20 will be compressed under the obstruction of the spring fixing ring 21 and the lower surface of the rolling frame 11, so that the rolling rod 14 moves upward, and the rolling blade 16 falls on the upper surface of the circuit board to perform rolling cutting. Since the upper spring 19 is adjusted in advance to compress and generate force, the downward force of the rolling rod 14 will become larger, so that the rolling blade 16 has enough downward force to perform rolling cutting and cut off the waste circuit board.

[0038] When in use, the upper spring 19 can be compressed first by adjusting the adjustment ring 17. When the blade contacts an overly thick circuit board, the lower spring 20 will be compressed first, so that the blade moves on the upper surface of the circuit board. Because the upper spring 19 has been compressed in advance, the rolling cutting blade 16 will release a greater force downward at this time, thereby operating downward on the upper surface of the circuit board, thereby making the cutting surface of the device smooth and capable of handling circuit boards of any thickness.

[0039] In one embodiment, for the above-mentioned fixing structure 7, the fixing structure 7 includes a lower fixing plate 22, the lower fixing plate 22 is installed on one side of the base 1, the upper surface of the lower fixing plate 22 is flush with the upper surface of the auxiliary rolling cutting frame 3, an adjusting screw 24 is installed on one side of the lower fixing plate 22, the axis of the adjusting screw 24 passes through an upper fixing plate 25, the upper fixing plate 25 is consistent in size with the lower fixing plate 22, the upper fixing plate 25 and the adjusting screw 24 are threadedly connected, the outer surface of the adjusting screw 24 is sleeved with a shell 26, the lower part of the shell 26 is installed on the upper surface of the lower fixing plate 22, the shell 26 is provided with a slideway 28 on the side closest to the upper fixing plate 25, the upper part of the adjusting screw 24 passes through the shell 26 and extends to the outside, the upper part of the adjusting screw 24 is installed with a rotating rod 29, and a rotating handle 30 is movably installed on the upper surface of one end of the rotating rod 29.

[0040] By fixing the lower fixing plate 22 on one side of the base 1, and the upper surface of the lower fixing plate 22 is flush with the upper surface of the auxiliary rolling cutting frame 3, the circuit board can be placed on the auxiliary rolling cutting frame 3 and the lower fixing plate 22. An adjusting screw 24 is installed on one side of the lower fixing plate 22. The upper part of the adjusting screw 24 penetrates the shell 26 and extends to the external installation rotating rod 29. By rotating the rotating handle 30 on the rotating rod 29, the upper fixing plate 25 installed on the adjusting screw 24 can be adjusted up and down. Under the fixation of the slideway 28 opened on the installed shell 26, the upper fixing plate 25 does not rotate, but only moves perpendicularly to the lower fixing plate 22, so that the distance between the upper fixing plate 25 and the lower fixing plate 22 can be adjusted flexibly, and when circuit boards of different thicknesses are used, they can also be flexibly fixed.

[0041] During use of the utility model, the upper fixing plate 25 can be adjusted by rotating the rotating handle 30, and can be fixed when rolling cutting is performed on circuit boards of different thicknesses, so that the cutting can be performed according to the predetermined line path during rolling cutting, thereby preventing the electronic circuits or fine parts of the circuit board from being accidentally cut, so that when the device is used on circuit boards of different thicknesses, they can also be firmly fixed.

[0042] In one embodiment, for the above-mentioned driving device 6, the driving device 6 also includes a motor 27, a driving shaft 23 is installed on the axis of the motor 27, the driving shaft 23 is connected to the threaded rod 9, and the lower part of the motor 27 is installed on the rolling support frame 4.

[0043] The driving device is preferably a motor 27. By installing the motor 27 on the rolling cutting support frame 4 and fixing the driving shaft 23 of the motor 27 to the threaded rod 9, the motor 27 can drive the threaded rod 9 to rotate, so that the rolling cutting frame 11 can move, thereby achieving the rolling cutting effect, so that the device does not need to be manually operated, thereby improving work efficiency.

[0044] In one embodiment, for the above-mentioned adjusting tube 18, the outer surface of the adjusting tube 18 is engraved with scales.

[0045] By engraving scales on the adjustment tube 18, when used for circuit boards of different thicknesses, the adjustment ring 17 can be accurately rotated according to the thickness to adjust to a suitable scale, thereby making the adjustment of the device clearer and easier to understand.

[0046] In summary, with the aid of the above technical solution of the utility model, the circuit board to be rolled is placed on the fixed rod 2, the position to be cut is aligned with the rolling blade 16, the adjusting screw 24 is moved by rotating the rotating rod 29 by holding the rotating handle 30, the distance between the upper fixing plate 25 and the lower fixing plate 22 is adjusted, the circuit board is fixed firmly, and then the motor 27 is started, the threaded rod 9 is driven to rotate by the driving shaft 23 of the motor 27, so that the rolling frame 11 moves on the threaded rod 9, and the rolling blade 16 moves. 16 contacts with the circuit board to achieve the effect of rolling cutting. When used for circuit boards of different thicknesses, the upper spring 19 can be compressed by rotating the adjusting ring 17, so that the rolling cutting rod 14 moves upward first. When it contacts the circuit board, the lower spring 20 will compress the rolling cutting blade 16 to move on the upper surface of the circuit board. At this time, the previously compressed upper spring 19 will make the rolling cutting blade 16 have a greater downward force, so that the blade has enough force to roll downward during rolling cutting, so that the device can cope with circuit boards of any thickness, and the cutting surface is flat and free of burrs.

[0047] Through the above technical solution, 1. The utility model places the circuit board on the fixing rod 2, and performs rolling cutting along the rolling cutting support frame 4 by the rolling cutting blade 16 to cut off unnecessary waste. When the circuit board is too thick, the upper spring 19 can be compressed by adjusting the adjusting ring 17. When the rolling cutting blade 16 contacts the too thick circuit board, the lower spring 20 will be compressed to make the rolling cutting blade 16 walk on the upper surface of the circuit board. Because the upper spring 19 has been compressed in advance, the rolling cutting blade 16 will release a greater force downward at this time, thereby The circuit board is operated downward from the upper surface of the circuit board, so that the cutting blade surface of the device is smooth and can cope with circuit boards of any thickness; 2. The utility model can fix the circuit board during the rolling cutting operation by installing a fixing structure 7 and a fixing hole 8, so that the cutting can be carried out according to the predetermined line during rolling cutting, so that the electronic circuits or fine parts of the circuit board will not be cut by mistake, and the upper fixing plate 25 can be adjusted by operating the rotating handle 30 to fix the circuit boards of different thicknesses, so that when the device is used on circuit boards of different thicknesses, they can also be firmly fixed.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rolling cutting machine for circuit board production, comprising a base (1), characterized in that: A fixing rod (2) is mounted on the upper surface of the base (1); an auxiliary rolling cutting frame (3) is also mounted on the upper surface of the base (1); rolling cutting support frames (4) are mounted on both sides of the base (1); a driving device (6) is mounted on the rolling cutting support frame (4); a rolling cutting structure (5) is mounted on the driving device (6); a fixing structure (7) is mounted on one side of the base (1); and fixing holes (8) are provided at four corners of the base (1).

2. A rolling cutter for circuit board production according to claim 1, characterized in that: The driving device (6) comprises a threaded rod (9), the axis of the threaded rod (9) passing through the rolling support frame (4) for rotation, a positioning shaft (10) being mounted on one side of the rolling support frame (4), the positioning shaft (10) and the threaded rod (9) being in an axis-parallel relationship.

3. A rolling cutter for circuit board production according to claim 2, characterized in that: The rolling structure (5) comprises a rolling frame (11), one side of the rolling frame (11) penetrates and is threadedly mounted on the threaded rod (9), the rolling frame (11) is provided with a hole (12), the positioning shaft (10) penetrates the hole (12), the upper surface of the rolling frame (11) is provided with a non-circular hole (13) penetrating the lower surface, a rolling rod (14) is penetrated and mounted in the non-circular hole (13), the non-circular hole (13) is adapted to the rolling rod (14), a rolling column (15) is mounted on one side of the lower end of the rolling rod (14), and a rolling blade (16) is mounted on the axis of the other end of the rolling column (15).

4. A rolling cutter for circuit board production according to claim 3, characterized in that: An adjusting ring (17) is mounted around the axis of the outer surface of the rolling rod (14); an adjusting tube (18) is mounted on the outer surface of the adjusting ring (17); the outer surface of the adjusting ring (17) is threadedly mounted on the inner surface of the adjusting tube (18); the adjusting tube (18) is mounted on the upper surface of the rolling frame (11); an area of ​​the adjusting ring (17) less than 1 / 2 is exposed outside the adjusting tube (18); an upper spring (19) is mounted around the rolling rod (14) on the lower surface of the adjusting ring (17); a lower spring (20) is mounted on the lower surface of the rolling frame (11); the lower spring (20) is mounted around the rolling rod (14); a spring fixing ring (21) is mounted between the lower end of the lower spring (20) and the outer surface of the rolling rod (14).

5. A rolling cutter for circuit board production according to claim 4, characterized in that: The fixing structure (7) comprises a lower fixing plate (22), the lower fixing plate (22) being mounted on one side of the base (1), the upper surface of the lower fixing plate (22) being flush with the upper surface of the auxiliary rolling cutting frame (3), an adjusting screw (24) being mounted on one side of the lower fixing plate (22), an upper fixing plate (25) being mounted on the axis of the adjusting screw (24), the upper fixing plate (25) being of the same size as the lower fixing plate (22), and the upper fixing plate (25) and the adjusting screw being in contact with each other. (24) is a threaded connection, the outer surface of the adjusting screw (24) is covered with a shell (26), the lower part of the shell (26) is installed on the upper surface of the lower fixing plate (22), the shell (26) is provided with a slideway (28) on the side closest to the upper fixing plate (25), the upper part of the adjusting screw (24) passes through the shell (26) and extends to the outside, the upper part of the adjusting screw (24) is installed with a rotating rod (29), and the upper surface of one end of the rotating rod (29) is movably installed with a rotating handle (30).

6. A rolling cutter for circuit board production according to claim 5, characterized in that: The driving device (6) further comprises a motor (27), the axis of which is mounted a driving shaft (23), the driving shaft (23) being connected to the threaded rod (9), and the lower part of the motor (27) being mounted on the rolling support frame (4).

7. A rolling cutter for circuit board production according to claim 6, characterized in that: The outer surface of the regulating tube (18) is engraved with scales.

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