A PCB circuit board hot cutting device

Abstract

The present invention discloses a device for hot cutting PCB circuit board sheets, comprising a U-shaped stand square plate, a square groove, a hoisting block, an oil cylinder, a pad, a block, a bar frame, an air cylinder, a motor, a connecting block, a ceramic plate, a grid groove, a square convex grid, a metal knife belt, a connecting hole, a blade edge, a positioning bolt, and an electromagnetic heating coil plate. The present invention is rationally designed, utilizing a matrix of different specifications of square convex grids and the resulting grid grooves distributed on the bottom of different ceramic plates to facilitate the installation of metal knife belts of different rectangular specifications. Hot cutting tools can be installed to process sheets of different specifications as needed, and the metal knife belt is fixed by positioning bolts passing through corresponding hole structures, effectively ensuring the firmness of the metal knife belt installation and convenient disassembly and replacement. The electromagnetic heating coil plate is energized to provide a heat source function for heating the metal knife belt, and the inner side of the blade edge of the metal knife belt is a vertical surface, achieving the effect of forming a smooth vertical section.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB circuit board processing and manufacturing equipment, in particular to a hot cutting device for PCB circuit board sheet materials. Background Art

[0002] PCBs are important electronic components, supporting and connecting electronic components. During PCB manufacturing, the required sheets are typically cut into the desired rectangular shape. Existing wire sawing devices, with limited tool options, result in relatively long processing times and low efficiency, making them inefficient and unable to meet the demands of mass production. Therefore, a device for thermally cutting PCB sheets is proposed to address these challenges. Summary of the Invention

[0003] The purpose of the present invention is to provide a PCB circuit board hot cutting device in order to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical scheme: a hot cutting device for PCB circuit board plates, including a metal knife belt, which is fixedly connected to the grid groove on the ceramic plate through a positioning bolt group, and an electromagnetic heating coil plate is installed on the back of the ceramic plate. The ceramic plate is installed in the square groove, and the square groove is opened on the bottom surface of the square plate. The top of the square plate is fixedly installed on the bottom of the lifting block, and the four corners of the top of the lifting block are respectively connected to the push rod ends of the four oil cylinders. A pad is arranged directly below the ceramic plate, and the pad is located in the rectangular groove. Support bars are extended on both sides of the rectangular groove, and the support bars are in contact with the two sides of the bottom of the pad.

[0005] Preferably, the grid groove is formed by a plurality of square convex grids located on one side of the ceramic plate, and the specifications of the square convex grid are 4cmx4cm. A groove is opened on the outer end face of the square convex grid, and a circular hole is opened in the middle of the four walls of the groove. The circular holes between two adjacent square convex grids are connected to each other by positioning bolts.

[0006] Preferably, the metal knife band is a rectangular structure of different specifications, and a plurality of connection holes are opened on the four walls around the metal knife band, each connection hole is passed through a corresponding positioning bolt, and the outer edge of the metal knife band is set as a blade edge, and the blade edge extends beyond the outer end face of the square convex grid.

[0007] Preferably, the oil cylinder is installed on the top surface of the U-shaped platform, and an inclined slide groove is opened at one end of the bottom of the U-shaped platform, the inclined slide groove is connected to the inside of the rectangular groove, and two blocking blocks are movably and elastically installed at the bottom of the inclined slide groove.

[0008] Preferably, the rectangular groove is opened on the inner bottom wall of the U-shaped platform, and the two connecting grooves on one side of the rectangular groove are connected to each other through a linkage shaft and two connecting blocks on one side of the pad, and one end of the linkage shaft is connected to the motor located on the U-shaped platform.

[0009] Preferably, the tops of the two side walls in the rectangular groove are provided with bar holes, and the inner part of the bar hole and the supporting bar block part are in sliding structure, and the outer end of the bar hole is installed with a bar frame.

[0010] Preferably, two cylinders are symmetrically installed on one side of the bar frame, and the push rod ends of the two cylinders are respectively connected to the two ends of the side wall of one side of the supporting bar block located in the bar frame.

[0011] The beneficial effects of the present invention are: a plurality of square convex grids and the formed grid grooves are distributed by using a matrix of different specifications on the bottom of different ceramic plates, which facilitates the installation of metal knife belts of different rectangular specifications, and can be replaced with hot cutting tools to process plates of different specifications, and the metal knife belt is fixed by positioning bolts passing through the corresponding hole structure, effectively ensuring the firmness of the installation of the metal knife belt and convenient disassembly and replacement; the electromagnetic heating coil plate is energized to have a heat source function for heating the metal knife belt, and the inner side of the blade edge of the metal knife belt is a vertical surface, thereby achieving the effect of forming a smooth vertical section. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 A perspective view of the overall structure of the present invention;

[0014] Figure 2 Schematic diagram of the connection structure between the square plate, ceramic plate and metal blade belt of the present invention;

[0015] Figure 3 This is a schematic diagram of the connection structure between the ceramic plate and the electromagnetic heating coil plate of the present invention;

[0016] Figure 4 A cross-sectional view of a local structure of a metal blade band according to the present invention;

[0017] Figure 5 It is a transverse cross-sectional view of the U-shaped stand connection structure of the present invention.

[0018] In the figure: 1. U-shaped stand; 101. Rectangular groove; 102. Inclined slide; 103. Connecting groove; 2. Square plate; 201. Square groove; 3. Lifting block; 4. Cylinder; 5. Pad; 6. Block; 7. Bar frame; 8. Cylinder; 9. Motor; 10. Connecting block; 11. Ceramic plate; 1101. Grid groove; 1102. Square convex grid; 12. Metal knife belt; 1201. Connecting hole; 1202. Blade edge; 13. Positioning bolt; 14. Electromagnetic heating coil plate; 15. Support bar; 16. Linkage shaft. DETAILED DESCRIPTION

[0019] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element 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 present invention.

[0022] See also Figure 1-5 As shown, a hot cutting device for PCB circuit board materials includes a metal knife belt 12, which is fixedly connected to a grid groove 1101 on a ceramic plate 11 by a set of positioning bolts 13, and an electromagnetic heating coil plate 14 is installed on the back of the ceramic plate 11. The ceramic plate 11 is installed in a square groove 201, and the square groove 201 is opened on the bottom surface of the square plate 2. The top of the square plate 2 is fixedly installed on the bottom of a lifting block 3, and the four corners of the top of the lifting block 3 are respectively connected to the push rod ends of four oil cylinders 4. A pad 5 is provided directly below the ceramic plate 11, and the pad 5 is located in the rectangular groove 101. Support bars 15 are extended on both sides of the rectangular groove 101, and the support bars 15 are in contact with both sides of the bottom of the pad 5.

[0023] like Figure 2As shown, the grid groove 1101 is formed by a plurality of square convex grids 1102 located on one side of the ceramic plate 11, and the specifications of the square convex grid 1102 are 4cmx4cm. The outer end surface of the square convex grid 1102 is provided with a groove, and the middle of the four walls of the groove are provided with a circular hole. The circular holes between two adjacent square convex grids 1102 are connected to each other by positioning bolts 13;

[0024] The plurality of crisscross grid grooves 1101 formed by a plurality of square convex grids 1102 are used to fix the rectangular metal blade band 12 along the corresponding grid grooves 1101 with bolts.

[0025] like Figure 4 As shown, the metal blade band 12 is a rectangular structure of different specifications, and a plurality of connection holes 1201 are opened on the four walls around the metal blade band 12. A corresponding positioning bolt 13 passes through each connection hole 1201. The outer edge of the metal blade band 12 is set as a blade edge 1202, and the blade edge 1202 extends beyond the outer end surface of the square convex grid 1102.

[0026] By providing different numbers of connection holes 1201 on the side walls around the metal blade belt 12 , the firmness of the connection between the metal blade belt 12 and the grid grooves 1101 and the square protrusion grids 1102 can be enhanced.

[0027] like Figure 1 and Figure 5 As shown, the oil cylinder 4 is installed on the top surface of the U-shaped stand 1, and an inclined slide 102 is opened at one end of the bottom of the U-shaped stand 1. The inclined slide 102 is connected to the inside of the rectangular groove 101, and two stop blocks 6 are movably and elastically installed at the bottom of the inclined slide 102.

[0028] A rectangular groove 101 is provided on the inner bottom wall of the U-shaped stand 1, and two connecting grooves 103 on one side of the rectangular groove 101 are connected to two connecting blocks 10 on one side of the pad 5 via a linkage shaft 16. One end of the linkage shaft 16 is connected to the motor 9 on the U-shaped stand 1.

[0029] The oil cylinder 4 extends and contracts, which plays a role in pushing and pulling the connected metal knife belt 12 up and down. The blocking blocks 6 on both sides support the bottom of the pad 5 to ensure the stability of the hot cutting operating surface on the top of the pad 5.

[0030] There are bar holes on the top of the side walls on both sides of the rectangular groove 101, and the inner part of the bar hole and the supporting bar block 15 have a sliding structure. A bar frame 7 is installed on the outer end of the bar hole. Two cylinders 8 are symmetrically installed on one side of the bar frame 7, and the push rod ends of the two cylinders 8 are respectively connected to the two ends of the side wall of one side of the supporting bar block 15 located in the bar frame 7, so as to retract the supporting bar block 15 into the bar frame 7 and eliminate obstacles for the pad 5 to rotate downward through the motor 9 and the linkage shaft 16.

[0031] When the present invention is in use, the working principle is as follows: first, the power of the electromagnetic heating coil plate 14 is turned on to heat the metal knife belt 12 to a preset temperature, and then the epoxy resin plate is placed in the middle position area of ​​the pad 5, and then the oil cylinder 4 is operated in an extended state to drive the square plate 2 connected by the lifting block 3 to move downward, so that the metal knife belt 12 fixed by the bottom bolts of the ceramic plate 11 located at the bottom of the square plate 2 moves downward until it contacts the plate and completes the hot cutting, obtaining a regular rectangular plate, and then the cylinder 8 is operated in a contracted state, which can shrink the connected support block 15 away from the bottom of the pad 5 into the bar frame 7, and then the motor 9 is operated to drive the connecting block 10 and the pad 5 connected by the linkage shaft 16 to rotate downward 60°, so that the hot-cut plate slides into the inclined chute 102, completing a hot-cut plate processing process.

[0032] By using a matrix of different specifications of square convex grids 1102 and the formed grid grooves 1101 distributed at the bottom of different ceramic plates 11, it is convenient to install metal knife belts 12 of different rectangular specifications. According to needs, different specifications of plates can be replaced with hot cutting tools, and the metal knife belt 12 is fixed through the corresponding hole structure by the positioning bolts 13, which effectively ensures the firmness of the installation of the metal knife belt 12 and convenient disassembly and replacement; the electromagnetic heating coil plate 14 is energized, which has the heat source function of heating the metal knife belt 12, and the inner side of the blade edge 1202 of the metal knife belt 12 is a vertical surface, so as to achieve the effect of forming a smooth vertical section.

[0033] The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved. As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for hot cutting a PCB circuit board, comprising a metal knife belt (12), characterized in that: The metal knife belt (12) is fixedly connected to the grid groove (1101) on the ceramic plate (11) through a positioning bolt (13) group, and an electromagnetic heating coil plate (14) is installed on the back of the ceramic plate (11). The ceramic plate (11) is installed in the square groove (201), and the square groove (201) is opened on the bottom surface of the square plate (2). The top of the square plate (2) is fixedly installed on the bottom of the lifting block (3), and the four corners of the top of the lifting block (3) are respectively connected to the push rod ends of the four oil cylinders (4). A pad (5) is provided directly below the ceramic plate (11), and the pad (5) is located in the rectangular groove (101). Support bars (15) are inserted into both sides of the rectangular groove (101), and the support bars (15) and the bottom sides of the pad (5) are in contact with each other. The grid groove (1101) is formed by a plurality of square convex grids (1102) located on one side of the ceramic plate (11), and the size of the square convex grid (1102) is 4cmx4cm. A groove is provided on the outer end surface of the square convex grid (1102), and a circular hole is provided in the middle of each of the four walls of the groove. The circular holes between two adjacent square convex grids (1102) are connected to each other by positioning bolts (13); The metal knife belt (12) is a rectangular structure of different specifications, and a plurality of connection holes (1201) are opened on the four walls around the metal knife belt (12), and a corresponding positioning bolt (13) passes through each connection hole (1201). The outer edge of the metal knife belt (12) is set as a blade edge (1202), and the blade edge (1202) exceeds the outer end surface of the square convex grid (1102).

2. The PCB hot cutting device according to claim 1, characterized in that: The oil cylinder (4) is mounted on the top surface of the U-shaped stand (1), and an inclined slide groove (102) is provided at one end of the bottom of the U-shaped stand (1). The inclined slide groove (102) is connected to the inside of the rectangular groove (101), and two blocking blocks (6) are movably and elastically mounted at the bottom of the notch of the inclined slide groove (102).

3. The PCB hot cutting device according to claim 1, characterized in that: The rectangular groove (101) is formed on the inner bottom wall of the U-shaped stand (1), and two connecting grooves (103) located on one side of the rectangular groove (101) are connected to two connecting blocks (10) located on one side of the pad (5) via a linkage shaft (16), and one end of the linkage shaft (16) is connected to a motor (9) located on the U-shaped stand (1).

4. The PCB hot cutting device according to claim 1, characterized in that: The tops of the two side walls of the rectangular groove (101) are both provided with strip holes, and the inner part of the strip hole and the supporting bar block (15) are in a sliding structure, and the outer end of the strip hole is installed with a strip frame (7).

5. The PCB hot cutting device according to claim 4, characterized in that: Two cylinders (8) are symmetrically mounted on one side of the strip frame (7), and the push rod ends of the two cylinders (8) are respectively connected to the two ends of the side wall of one side of the support bar block (15) located in the strip frame (7).

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