Printed Circuit Board and Its Assembly Device

Abstract

The present invention provides a printed circuit board and its assembly device, relating to the technical field of printed circuit boards and their manufacturing equipment. The purpose is to solve the technical problem that the existing printed circuit boards cannot adapt to cylindrical installation spaces. The technical solution adopted is as follows: The printed circuit board includes: a hollow column and a column core filled in the center of the hollow column; the hollow column includes: a composite tape surrounding the column core; the composite tape includes: a circuit sheet and an insulating tape laminated with the circuit sheet; the circuit sheet includes: an insulating film and a circuit provided on the surface of the insulating film; the insulating tape is made of fiberglass cloth or non-woven fabric and is impregnated with a resin adhesive; the length of the insulating tape in the circumferential direction is greater than the length of the circuit sheet, so that the inner circumferential surface and the outer circumferential surface of the hollow column are both covered by the insulating tape. This printed circuit board can make full use of the cylindrical installation space, which is conducive to further miniaturization of the volume and complication of the functions of electronic devices. In addition, the present invention also provides an assembly device for the aforementioned printed circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field of printed circuit boards and their manufacturing equipment, and particularly to printed circuit boards and their assembly devices. Background Art

[0002] A printed circuit board is one of the important components of the electronics industry. Almost every electronic device, from small electronic watches and calculators to large computers, communication electronic devices, and military weapon systems, as long as there are electronic components such as integrated circuits, in order to achieve electrical interconnection between each component, a printed circuit board is used.

[0003] With the rapid development and wide application of integrated circuits, the volume of electronic devices is getting smaller and smaller, and printed circuit boards also need to be continuously updated. There are many electronic devices whose internal space is often cylindrical or approximately cylindrical. However, the existing printed circuit boards are all flat structures and cannot make full use of the internal space of such electronic devices. This hinders the further improvement of the internal circuit integration and density of electronic devices and is not conducive to the further realization of the miniaturization of the volume and the complexity of functions of electronic devices. Summary of the Invention

[0004] The purpose of the present invention is to provide a printed circuit board that can make full use of the cylindrical installation space and is conducive to the further realization of the miniaturization of the volume and the complexity of functions of electronic devices; based on the same inventive concept, another purpose of the present invention is to provide an assembly device for the aforementioned printed circuit board.

[0005] The printed circuit board includes: a column; the column includes: a hollow column and a column core filled in the center of the hollow column; the hollow column includes: a composite tape surrounding the column core; the composite tape includes: a circuit sheet and an insulating tape laminated with the circuit sheet; the circuit sheet includes: an insulating film and a circuit provided on the surface of the insulating film; the insulating tape is made of fiberglass cloth or non-woven fabric and is impregnated with a resin adhesive; the length of the insulating tape in the circumferential direction is greater than the length of the circuit sheet so that the inner circumferential surface and the outer circumferential surface of the hollow column are both covered by the insulating tape.

[0006] Optionally, the insulating film is made of polyester film, polyimide film or fluorinated ethylene propylene film; the resin adhesive is made of epoxy resin, polyimide resin, polycyanate resin or polyolefin resin.

[0007] Optionally, it further includes: a cylinder for accommodating the column; the end faces of the column and the cylinder are covered with a resin adhesive to enclose the column in the cylinder; the circuit sheet is provided with a connection part, and the connection part extends beyond the end faces of the column and the cylinder.

[0008] The present application further provides an assembly device for a printed circuit board, which is used to assemble the aforementioned printed circuit board; the assembly device includes: a conveying mechanism for conveying an insulating tape from left to right, a stacking table located on the right side of the conveying mechanism, a pick-and-place mechanism for sending a circuit sheet to the stacking table, a cutting mechanism located on the right side of the stacking table, a winding mechanism located on the right side of the cutting mechanism, a core feeding mechanism for sending a column core to the winding mechanism, a column taking mechanism for taking a column from the winding mechanism, a first material channel for supplying a cylinder body, a pushing mechanism for driving the column into the cylinder body, a glue leveling mechanism for evenly covering the end faces of the column and the cylinder body with a resin adhesive, and a material taking mechanism for taking away the cylinder body.

[0009] Optionally, the winding mechanism includes: a clamping unit for clamping the front and rear ends of the column core, and a driven unit cooperating with the clamping unit; the clamping unit includes: a coaxial active clamping shaft and a driven clamping shaft, a first motor for driving the active clamping shaft to rotate, and a first driving unit for driving the first motor to move back and forth; the driven clamping shaft is rotatably installed on a second sliding seat through a bearing and is adapted to a second driving unit for driving the second sliding seat to move back and forth; the driven unit includes: a first driven roller, and roller frames located at both ends of the first driven roller; the end of the first driven roller is rotatably installed on a slider through a bearing; the roller frame includes: a horizontal part, and vertical parts extending upward from the left and right ends of the horizontal part; the two vertical parts are provided with sliding grooves on the opposite sides to jointly limit the slider; the roller frame is provided with a third spring for driving the slider to move upward, and a stop block for limiting the slider is installed at the top of the roller frame.

[0010] Optionally, the horizontal part has a through guiding hole, the bottom of the slider has a third guiding rod cooperating with the guiding hole, and the third spring is sleeved on the third guiding rod; the first motor is installed on a first sliding seat; the first driving unit includes: a first guide rail cooperating with the first sliding seat, a first electromagnet for driving the first sliding seat to approach the driven clamping shaft, and a first spring for driving the first sliding seat to move away from the driven clamping shaft; the second driving unit includes: a second guide rail cooperating with the second sliding seat, a second electromagnet for driving the second sliding seat to approach the active clamping shaft, and a second spring for driving the second sliding seat to move away from the active clamping shaft; the first guide rail and the second guide rail extend in the front-rear direction.

[0011] Optionally, the column picking mechanism includes: a bracket, a left arc plate and a right arc plate mounted on the bracket, and a first power source for driving the bracket to move left and right; a receiving cavity for receiving the column body is formed between the left arc plate and the right arc plate; the left arc plate is provided with a plurality of first connecting cylinders extending radially outward from the receiving cavity, and the bracket is provided with first mounting holes for the first connecting cylinders to pass through; the first connecting cylinder is provided with an external thread and is connected to the bracket through a first nut; the right arc plate is provided with a plurality of second connecting cylinders extending radially outward from the receiving cavity, and the bracket is provided with second mounting holes for the second connecting cylinders to pass through; the second connecting cylinder is provided with an external thread and is connected to the bracket through a second nut; there is a first gap between the lower parts of the left arc plate and the right arc plate for the insulating tape and the circuit sheet to be sent from the laminating table to the winding mechanism and to avoid the first driven roller of the winding mechanism.

[0012] Optionally, the column picking mechanism further includes: a left guide and a right guide; when the left guide and the right guide are closed, they cooperate with the column core to form a guiding gap for guiding the insulating tape and the circuit sheet to wind around the column core; when the left guide and the right guide are closed, there is a second gap for the insulating tape and the circuit sheet to enter the guiding gap; the left guide is provided with a plurality of first guide rods extending radially outward from the column core, and each first guide rod is respectively limited in each first connecting cylinder; the left guide is adapted to be driven by a first air cylinder to move radially along the receiving cavity, the first air cylinder is mounted on the bracket, and the left arc plate and the bracket are provided with holes for the piston rod of the first air cylinder to pass through; the left arc plate is provided with a first receiving groove for receiving the left guide; the right guide is provided with a plurality of second guide rods extending radially outward from the column core, and each second guide rod is respectively limited in each second connecting cylinder; the right guide is adapted to be driven by a second air cylinder to move radially along the receiving cavity, the second air cylinder is mounted on the bracket, and the right arc plate and the bracket are provided with holes for the piston rod of the second air cylinder to pass through; the right arc plate is provided with a second receiving groove for receiving the right guide.

[0013] Optionally, the first material channel includes a material storage section extending in the vertical direction, a material discharging section extending in the horizontal direction, and an arc section connecting the bottom end of the material storage section and the material discharging section; the pushing mechanism corresponds to the front and back of the material discharging section; the pushing mechanism includes a pushing member and a second power source for driving the pushing member to move back and forth; the glue leveling mechanism includes glue leveling units located on the front and back sides of the material discharging section; a third power source for driving the glue leveling unit located between the material discharging section and the pushing mechanism to move up and down; the front and back ends of the material discharging section have openings to expose the end faces of the cylinder body; the glue leveling unit includes a glue leveling disc, a third motor for driving the glue leveling disc to rotate back and forth, and a third driving unit for driving the third motor to move back and forth; the glue leveling disc is provided with a glue blocking ring on the side facing the material discharging section, and the inner diameter of the glue blocking ring is adapted to the outer diameter of the cylinder body; the glue leveling disc is provided with an arc-shaped opening penetrating the front and back surfaces for the connecting portion of the circuit piece to pass through; the length of the arc-shaped opening in the arc direction is greater than the length of the connecting portion; the material taking mechanism includes a first pneumatic finger, a fourth cylinder for driving the first pneumatic finger to move up and down, and a fourth power source for driving the fourth cylinder to move back and forth; the top of the material discharging section is open for the material taking mechanism to take away the cylinder body.

[0014] Optionally, the conveying mechanism includes a driving roller, a second driven roller cooperating with the driving roller, and a second motor for driving the driving roller to rotate; the sucking and placing mechanism includes a plurality of vacuum suction nozzles for sucking and placing circuit pieces, a carriage for mounting the vacuum suction nozzles, a third cylinder for driving the carriage to move up and down, and a fifth power source for driving the third cylinder to move back and forth; the cutting mechanism includes a cutting knife located below the right end of the laminating table and a sixth power source for driving the cutting knife to move up and down; the laminating table is provided with a limiting strip above the right end to limit the insulating tape when the cutting knife cuts the insulating tape; the core feeding mechanism includes a second pneumatic finger, a fifth cylinder for driving the second pneumatic finger to move up and down, and a seventh power source for driving the fifth cylinder to move back and forth; a second material channel for supplying column cores is arranged behind the winding mechanism; the top of the discharging end of the second material channel is open for the core feeding mechanism to take away the column cores.

[0015] The beneficial effects of the present invention are mainly reflected in:

[0016] A circuit is arranged on the surface of the insulating film to make a flexible circuit piece; a resin adhesive is covered on the surface of the circuit piece and then wound around a column core; after the resin adhesive is cured, a printed circuit board in a columnar structure can be obtained. This printed circuit board in a columnar structure can better adapt to a cylindrical or approximately cylindrical installation space, which is beneficial to further miniaturize the volume and complicate the functions of electronic devices.

[0017] The insulating tape is made of fiberglass cloth or non-woven fabric, which can be better impregnated with resin adhesive. The insulating tape is first impregnated with resin adhesive, then overlapped with the circuit sheet and wound around the column core. During the winding process, it can ensure that the resin adhesive evenly covers both sides of the circuit sheet and extrudes the air. In this way, the cured resin adhesive can fully fill the inter-ring gap formed by the circuit sheet during the winding process, thus playing a full protective role for the circuit sheet, especially preventing the circuit on the surface of the circuit sheet from oxidation or corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of a printed circuit board;

[0020] Figure 2 It is a schematic assembly diagram of a printed circuit board;

[0021] Figure 3 It is a schematic structural diagram of an assembly device for a printed circuit board;

[0022] Figure 4 It is a schematic structural diagram of a winding mechanism and a core feeding mechanism;

[0023] Figure 5 It is a schematic structural diagram of a first driving unit;

[0024] Figure 6 It is a schematic structural diagram of a second driving unit;

[0025] Figure 7 It is a schematic structural diagram of a driven unit;

[0026] Figure 8 It is a schematic structural diagram of a column taking mechanism;

[0027] Figure 9 It is a schematic assembly diagram of a bracket, a left arc plate and a right arc plate;

[0028] Figure 10 It is a schematic diagram of the left guiding member and the right guiding member cooperating with the column core to form a guiding gap;

[0029] Figure 11 It is a schematic diagram of the left guiding member retracting into the first receiving groove;

[0030] Figure 12 It is a schematic structural diagram of a pushing mechanism and a picking mechanism;

[0031] Figure 13 Schematic structural diagram of the glue leveling mechanism;

[0032] Figure 14 Schematic structural diagram of the glue leveling disk;

[0033] Figure 15 Schematic structural diagrams of the conveying mechanism, the sucking and placing mechanism, and the cutting mechanism.

[0034] Reference numerals: 1, hollow column; 2, column core; 3, circuit sheet; 4, insulating tape; 5, cylinder body; 6, connecting portion; 7, conveying mechanism; 8, stacking table; 9, sucking and placing mechanism; 10, cutting mechanism; 11, winding mechanism; 12, core feeding mechanism; 13, column taking mechanism; 14, first material channel; 15, material pushing mechanism; 16, glue leveling mechanism; 17, material taking mechanism; 18, active pressing shaft; 19, driven pressing shaft; 20, first motor; 21, first driving unit; 22, second sliding seat; 23, second driving unit; 24, first driven roller; 25, roller frame; 26, slider; 27, third spring; 28, third guide rod; 29, first sliding seat; 30, first guide rail; 31, first electromagnet; 32, first spring; 33, second guide rail; 34, second electromagnet; 35, second spring; 36, bracket; 37, left arc plate; 38, right arc plate; 39, first power source; 40, first connecting cylinder; 41, first mounting hole; 42, second connecting cylinder; 43, second mounting hole; 44, left guide member; 45, right guide member; 46, first guide rod; 47, first cylinder; 48, first receiving groove; 49, second guide rod; 50, second cylinder; 51, second receiving groove; 52, material pushing member; 53, second power source; 54, glue leveling unit; 55, third power source; 56, discharging section; 57, glue leveling disk; 58, third motor; 59, third driving unit; 60, glue blocking ring; 61, arc-shaped opening; 62, first pneumatic finger; 63, fourth power source; 64, active roller; 65, second driven roller; 66, second motor; 67, vacuum suction nozzle; 68, sliding frame; 69, third cylinder; 70, fifth power source; 71, cutting knife; 72, sixth power source; 73, limiting strip; 74, second pneumatic finger; 75, fourth cylinder; 76, seventh power source; 77, second material channel; 78, fifth cylinder; 79, guiding gap. Detailed implementation manners

[0035] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are regarded as being exemplary in nature rather than restrictive.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is 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. Therefore, it should not be construed as a limitation to the present invention.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, terms such as "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The following will Figure 1 ~ Figure 4 describe the embodiments of the present invention in detail with reference to the

[0040] Embodiment 1

[0041] As Figure 1 , Figure 2 shown, the embodiment of the present invention provides a printed circuit board. The printed circuit board includes: a column. The column includes: a hollow column 1 and a column core 2 filled in the center of the hollow column 1. The hollow column 1 includes: a composite tape surrounding the column core 2. The composite tape includes: a circuit sheet 3 and an insulating tape 4 laminated with the circuit sheet 3. The circuit sheet 3 includes: an insulating film and a circuit provided on the surface of the insulating film. The insulating tape 4 is made of fiberglass cloth or non-woven fabric and is impregnated with a resin adhesive. The length of the insulating tape 4 in the circumferential direction is greater than the length of the circuit sheet 3, so that the inner circumferential surface and the outer circumferential surface of the hollow column 1 are both covered by the insulating tape 4.

[0042] It should be understood that in the present invention, a circuit is arranged on the surface of an insulating film to form a flexible circuit sheet 3; a resin adhesive is covered on the surface of the circuit sheet 3, and then it is wound around a column core 2; after the resin adhesive is cured, a printed circuit board in a columnar structure can be obtained. This printed circuit board in a columnar structure can better adapt to a cylindrical or approximately cylindrical installation space, which is beneficial to further miniaturize the volume and complicate the functions of electronic devices. In addition, the insulating tape 4 is made of fiberglass cloth or non-woven fabric, which can be better impregnated with the resin adhesive; the insulating tape 4 is first impregnated with the resin adhesive, then laminated with the circuit sheet 3 and wound around the column core 2; during the winding process, it can ensure that the resin adhesive evenly covers both sides of the circuit sheet 3 and extrudes the air; in this way, the cured resin adhesive can fully fill the inter-ring gap formed during the winding of the circuit sheet 3, thereby playing a full protection role for the circuit sheet 3, especially preventing the circuit on the surface of the circuit sheet 3 from being oxidized or corroded. In addition, the column core 2 is usually made of a polymer insulating material such as plastic. The circuit can be arranged on one side of the insulating film for the circuit sheet 3; or the circuit can be arranged on both sides of the insulating film to increase the line density and integration degree.

[0043] Example 2

[0044] On the basis of Example 1, the insulating film is made of polyester film, polyimide film or fluorinated ethylene propylene film; the resin adhesive is made of epoxy resin, polyimide resin, polycyanate resin or polyolefin resin.

[0045] Example 3

[0046] As Figure 1 、 Figure 2 shown, on the basis of Example 1 or Example 2, this printed circuit board further includes: a cylinder body 5 for accommodating the column; the end faces of the column and the cylinder body 5 are covered with a resin adhesive to enclose the column in the cylinder body 5; the circuit sheet 3 is provided with a connecting portion 6, and the connecting portion 6 extends beyond the end faces of the column and the cylinder body 5.

[0047] It should be understood that the cylinder body 5 is usually made of a polymer insulating material such as plastic. When the column core 2 winds the circuit sheet 3 and the insulating tape 4, the resin adhesive impregnated in the insulating tape 4 is in a fluid or semi-fluid state; after winding into a column, the column can be inserted into the cylinder body 5 and wait for the resin adhesive to cure to prevent the column from loosening and deforming during the curing process of the resin adhesive. According to actual needs; a release agent or a release film can be provided on the inner wall of the cylinder body 5 to facilitate the removal of the column from the cylinder body 5 after the resin adhesive is cured; or a release agent or a release film can not be provided on the inner wall of the cylinder body 5 to connect the column and the cylinder body 5 together after the resin adhesive is cured. In this case, a layer of resin adhesive is usually covered on the end faces of the column and the cylinder body 5, so as to completely enclose the column in the cylinder body 5.

[0048] Example 4

[0049] As Figure 3 shown, an assembly device for a printed circuit board provided by an embodiment of the present invention is used to assemble the printed circuit board described in Embodiment 3. The assembly device includes: a conveying mechanism 7 for conveying an insulating tape 4 from left to right, a stacking table 8 located on the right side of the conveying mechanism 7, a suction and placement mechanism 9 for sending a circuit chip 3 to the stacking table 8, a cutting mechanism 10 located on the right side of the stacking table 8, a winding mechanism 11 located on the right side of the cutting mechanism 10, a core feeding mechanism 12 for sending a column core 2 to the winding mechanism 11, a column taking mechanism 13 for taking a column body from the winding mechanism 11, a first material channel 14 for supplying a cylinder body 5, a pushing mechanism 15 for driving the column body into the cylinder body 5, a glue leveling mechanism 16 for evenly covering the end faces of the column body and the cylinder body 5 with a resin adhesive, and a material taking mechanism 17 for taking away the cylinder body 5.

[0050] It should be understood that the insulating tape 4 can be impregnated with a resin adhesive upstream and sent to the stacking table 8 downstream through the conveying mechanism 7. The circuit chip 3 can be sucked from the placement area of the circuit chip 3 by the suction and placement mechanism 9 and then placed on the stacking table 8, so as to stack the circuit chip 3 and the insulating tape 4 together; the core feeding mechanism 12 is made to send the column core 2 to the winding mechanism 11; and the conveying mechanism 7 is made to continue to send the insulating tape 4 downstream, and the insulating tape 4 will drive the circuit chip 3 to move to the winding mechanism 11; in this way, the winding mechanism 11 can wind the insulating tape 4 and the circuit chip 3 around the column core 2; during the winding process, a small amount of the resin adhesive impregnated in the insulating tape 4 will be squeezed to the end face of the column body. Then, the cutting mechanism 10 can cut off the insulating tape 4, and then the column taking mechanism 13 can take away the wound column body from the winding mechanism 11; then the pushing mechanism 15 can push the column body from the column taking mechanism 13 into the cylinder body 5 in the first material channel 14; then the glue leveling mechanism 16 can level the resin adhesive squeezed to the end face of the column body so that the resin adhesive evenly covers the end faces of the column body and the cylinder body 5. Finally, the material taking mechanism 17 can take away the cylinder body 5 containing the column body; after the resin adhesive is cured, a printed circuit board in the form of a column body structure can be obtained. In addition, before placing the circuit chip 3 on the placement area, a plastic film can be wrapped on the surface of the connecting portion 6 of the circuit chip 3 to prevent the connecting portion 6 from being contaminated during the subsequent assembly process.

[0051] Example 5

[0052] As Figures 3 to 7As shown, on the basis of Embodiment 4, the winding mechanism 11 includes: a pressing unit for pressing against the front and rear ends of the core 2, and a driven unit cooperating with the pressing unit; the pressing unit includes: a coaxial active pressing shaft 18 and a driven pressing shaft 19, a first motor 20 for driving the active pressing shaft 18 to rotate, and a first driving unit 21 for driving the first motor 20 to move back and forth; the driven pressing shaft 19 is rotatably installed on the second sliding seat 22 through a bearing and is adapted to drive the second sliding seat 22 to move back and forth by a second driving unit 23; the driven unit includes: a first driven roller 24, and roller brackets 25 at both ends of the first driven roller 24; the end of the first driven roller 24 is rotatably installed on the slider 26 through a bearing; the roller bracket 25 includes: a horizontal portion, and vertical portions extending upward from the left and right ends of the horizontal portion; the two vertical portions are provided with sliding grooves on the opposite sides to jointly limit the slider 26; the roller bracket 25 is provided with a third spring 27 for driving the slider 26 to move upward, and a stop block for limiting the slider 26 is installed at the top of the roller bracket 25.

[0053] It should be understood that prismatic grooves can be provided at the front and rear ends of the core 2, and prismatic protrusions adapted thereto can be provided on the active pressing shaft 18 and the driven pressing shaft 19, so that the active pressing shaft 18 and the driven pressing shaft 19 can better press against the core 2. Let the first driving unit 21 drive the first motor 20 to move the active pressing shaft 18 away from the driven pressing shaft 19, and let the second driving unit 23 drive the second sliding seat 22 to move the driven pressing shaft 19 away from the active pressing shaft 18; then the core feeding mechanism 12 can send the core 2 between the active pressing shaft 18 and the driven pressing shaft 19. Then let the active pressing shaft 18 and the driven pressing shaft 19 approach each other, and the core 2 can be pressed. A release agent or a release film can be provided on the surface of the first driven roller 24; the insulating tape 4 and the circuit sheet 3 sent from the laminating table 8 will be pressed by the first driven roller 24 on the surface of the core 2. Let the first motor 20 drive the active pressing shaft 18 to drive the core 2 to rotate, and the insulating tape 4 and the circuit sheet 3 can be wound around the core 2. During the winding process, the diameter of the cylinder will become larger and larger; both ends of the first driven roller 24 are installed on the slider 26, and the bottom of the slider 26 is supported by the third spring 27; thus, the height of the first driven roller 24 will automatically and adaptively move downward as the diameter of the cylinder increases, so as to keep pressing the insulating tape 4 and the circuit sheet 3 without hindering the rotation of the cylinder. The first motor 20 is usually a servo motor.

[0054] Embodiment 6

[0055] As Figures 4 to 7As shown, on the basis of Embodiment 5, the horizontal portion has a guiding hole penetrating through the upper and lower portions. The bottom of the slider 26 has a third guiding rod 28 that mates with the guiding hole, and the third spring 27 is sleeved on the third guiding rod 28. The first motor 20 is installed on the first sliding seat 29. The first driving unit 21 includes: a first guiding rail 30 that mates with the first sliding seat 29, a first electromagnet 31 that drives the first sliding seat 29 to approach the driven pressing shaft 19, and a first spring 32 that drives the first sliding seat 29 away from the driven pressing shaft 19. The second driving unit 23 includes: a second guiding rail 33 that mates with the second sliding seat 22, a second electromagnet 34 that drives the second sliding seat 22 to approach the driving pressing shaft 18, and a second spring 35 that drives the second sliding seat 22 away from the driving pressing shaft 18. The first guiding rail 30 and the second guiding rail 33 extend in the front-back direction.

[0056] It should be understood that when the first electromagnet 31 is powered off, the first spring 32 will restore its deformation and drive the first sliding seat 29 to move away from the driven pressing shaft 19. The first sliding seat 29 contains iron or an iron alloy. When the first electromagnet 31 is powered on, the first sliding seat 29 can be attracted to move towards the driven pressing shaft 19. Similarly, when the second electromagnet 34 is powered off, the second spring 35 will restore its deformation and drive the second sliding seat 22 to move away from the driving pressing shaft 18. The second sliding seat 22 contains iron or an iron alloy. When the second electromagnet 34 is powered on, the second sliding seat 22 can be attracted to move towards the driving pressing shaft 18. The driving pressing shaft 18 and the driven pressing shaft 19 only need to move slightly in the axial direction. With the first driving unit 21 and the second driving unit 23 having the aforementioned structures, compared with linear cylinders and linear motors, the structure is simpler and more compact, the cost is lower, and the maintenance is more convenient.

[0057] Embodiment 7

[0058] As Figure 3 , Figure 8 , Figure 9 , Figure 11As shown, on the basis of Embodiment 5 or Embodiment 6, the column taking mechanism 13 includes: a bracket 36, a left arc plate 37 and a right arc plate 38 mounted on the bracket 36, and a first power source 39 for driving the bracket 36 to move left and right; a receiving cavity for receiving the column body is formed between the left arc plate 37 and the right arc plate 38; the left arc plate 37 is provided with a plurality of first connecting cylinders 40 extending radially outward from the receiving cavity, and the bracket 36 is provided with first mounting holes 41 for the first connecting cylinders 40 to pass through; the first connecting cylinders 40 are provided with external threads and are connected to the bracket 36 through first nuts; the right arc plate 38 is provided with a plurality of second connecting cylinders 42 extending radially outward from the receiving cavity, and the bracket 36 is provided with second mounting holes 43 for the second connecting cylinders 42 to pass through; the second connecting cylinders 42 are provided with external threads and are connected to the bracket 36 through second nuts; a first notch is formed between the lower parts of the left arc plate 37 and the right arc plate 38 for the insulating tape 4 and the circuit sheet 3 to be sent from the laminating table 8 to the winding mechanism 11 and to avoid the first driven roller 24 of the winding mechanism 11.

[0059] It should be understood that after the active pressing shaft 18 and the driven pressing shaft 19 press against the column core 2; first, let the core feeding mechanism 12 leave, and then let the first power source 39 drive the bracket 36 to move to the winding mechanism 11 so that the column core 2 is located in the receiving cavity between the left arc plate 37 and the right arc plate 38; then let the first motor 20 drive the active pressing shaft 18 to rotate to drive the column core 2 to wind the insulating tape 4 and the circuit sheet 3; when the insulating tape 4 is cut off and the winding is completed, the column body is located in the receiving cavity between the left arc plate 37 and the right arc plate 38; let the active pressing shaft 18 and the driven pressing shaft 19 release the pressing on the column core 2; then the first power source 39 can be used to drive the bracket 36 to leave the winding mechanism 11, thereby taking away the column body. The first power source 39 can be set as a linear cylinder or a linear motor. In addition, the position of the left arc plate 37 can be adjusted along the length direction of the first connecting cylinder 40, and the position of the right arc plate 38 can be adjusted along the length direction of the second connecting cylinder 42, so as to adjust the size of the receiving cavity to adapt to printed circuit boards with column body structures of different diameters.

[0060] Embodiment 8

[0061] As Figures 8 to 11As shown, on the basis of Embodiment 7, the column taking mechanism 13 further includes: a left guide member 44 and a right guide member 45; when the left guide member 44 and the right guide member 45 are closed, they cooperate with the column core 2 to form a guiding gap 79 for guiding the insulating tape 4 and the circuit sheet 3 to wind around the column core 2; when the left guide member 44 and the right guide member 45 are closed, there is a second notch for the insulating tape 4 and the circuit sheet 3 to enter the guiding gap 79; the left guide member 44 is provided with a plurality of first guide rods 46 extending radially outward along the column core 2, and each first guide rod 46 is respectively limited in each first connecting cylinder 40; the left guide member 44 is adapted to be driven by a first air cylinder 47 to move radially along the receiving cavity, the first air cylinder 47 is installed on the bracket 36, and the left arc plate 37 and the bracket 36 are provided with holes for the piston rod of the first air cylinder 47 to pass through; the left arc plate 37 is provided with a first receiving groove 48 for receiving the left guide member 44; the right guide member 45 is provided with a plurality of second guide rods 49 extending radially outward along the column core 2, and each second guide rod 49 is respectively limited in each second connecting cylinder 42; the right guide member 45 is adapted to be driven by a second air cylinder 50 to move radially along the receiving cavity, the second air cylinder 50 is installed on the bracket 36, and the right arc plate 38 and the bracket 36 are provided with holes for the piston rod of the second air cylinder 50 to pass through; the right arc plate 38 is provided with a second receiving groove 51 for receiving the right guide member 45.

[0062] It should be understood that when the column core 2 is located in the receiving cavity between the left arc plate 37 and the right arc plate 38; the first air cylinder 47 is commanded to drive the left guide member 44 to move towards the column core 2, and the second air cylinder 50 is commanded to drive the right guide member 45 to move towards the column core 2; the left guide member 44 and the right guide member 45 are closed, so as to cooperate with the column core 2 to form the guiding gap 79. Thus, when the active pressing shaft 18 drives the column core 2 to rotate, the insulating tape 4 and the circuit sheet 3 pressed between the column core 2 and the first driven roller 24 can wind around the column core 2 along the guiding gap 79. By providing the left guide member 44 and the right guide member 45, it can be ensured that the insulating tape 4 and the circuit sheet 3 can be stably wound around the column core 2 at the initial stage of winding. After the insulating tape 4 and the circuit sheet 3 are initially wound around the column core 2; the first air cylinder 47 can be commanded to drive the left guide member 44 away from the column core 2 and retract into the first receiving groove 48 of the left guide member 44; and the second air cylinder 50 is commanded to drive the right guide member 45 away from the column core 2 and retract into the second receiving groove 51 of the right guide member 45. Thus, the insulating tape 4 and the circuit sheet 3 can continue to wind around the column core 2 to form a column body in the receiving cavity.

[0063] Embodiment 9

[0064] As Figures 12 to 14As shown, on the basis of any one of Embodiments 4 to 8, the first material channel 14 includes: a material storage section extending in the vertical direction, a material discharge section 56 extending in the horizontal direction, and an arc section connecting the bottom end of the material storage section and the material discharge section 56; the pusher mechanism 15 corresponds to the front and back of the material discharge section 56; the pusher mechanism 15 includes: a pusher 52, and a second power source 53 for driving the pusher 52 to move back and forth; the glue leveling mechanism 16 includes: glue leveling units 54 located on the front and back sides of the material discharge section 56; a third power source 55 for driving the glue leveling unit 54 located between the material discharge section 56 and the pusher mechanism 15 to move up and down; the front and back ends of the material discharge section 56 have openings to expose the end face of the cylinder body 5; the glue leveling unit 54 includes: a glue leveling disk 57, a third motor 58 for driving the glue leveling disk 57 to rotate back and forth, and a third driving unit 59 for driving the third motor 58 to move back and forth; the glue leveling disk 57 is provided with a glue retaining ring 60 on the side facing the material discharge section 56, and the inner diameter of the glue retaining ring 60 is adapted to the outer diameter of the cylinder body 5; the glue leveling disk 57 is provided with an arc-shaped opening 61 penetrating through the front and back surfaces for the connecting portion 6 of the circuit chip 3 to pass through; the length of the arc-shaped opening 61 in the arc upward direction is greater than the length of the connecting portion 6; the material taking mechanism 17 includes: a first pneumatic finger 62, a fourth cylinder 75 for driving the first pneumatic finger 62 to move up and down, and a fourth power source 63 for driving the fourth cylinder 75 to move back and forth; the top of the material discharge section 56 is open for the material taking mechanism 17 to take away the cylinder body 5.

[0065] It should be understood that after the column taking mechanism 13 takes away the wound column from the winding mechanism 11, the second power source 53 is made to drive the pusher 52 to move towards the first material channel 14, and then the column can be pushed into the cylinder body 5 of the first material channel 14 from the column taking mechanism 13. The third power source 55 is made to drive the sizing unit 54 located in front of the first material channel 14 to move upward, and then the sizing plates 57 of the sizing units 54 on the front and rear sides of the first material channel 14 are made to move towards the first material channel 14, so that the sizing plates 57 of the two sizing units 54 are respectively buckled on the front and rear ends of the cylinder body 5 and the column; then the third motor 58 is made to drive the sizing plate 57 to rotate back and forth to smooth the resin adhesive squeezed to the end face of the column, and the resin adhesive can be evenly covered on the end faces of the column and the cylinder body 5. Finally, the sizing plates 57 of the two sizing units 54 are made to disengage from the cylinder body 5 and the column, and then the first pneumatic finger 62 of the material taking mechanism 17 can grab the assembled cylinder body 5 and column; after the resin adhesive is cured, the printed circuit board with a column structure can be obtained. In addition, a sensor can be provided to locate the position of the connecting part 6 of the circuit chip 3, so as to ensure that the arc-shaped opening 61 of the sizing plate 57 can be aligned with the connecting part 6 of the circuit chip 3, so that the connecting part 6 of the circuit chip 3 can pass through the arc-shaped opening 61 of the sizing plate 57. Additionally, a release film or release agent can be provided on the surface of the sizing plate 57. The second power source 53, the third power source 55, and the fourth power source 63 can be set as linear cylinders or linear motors. The third driving unit 59 includes: a slide seat for installing the third motor 58, a third guide rail that cooperates with the third slide seat and extends in the front-rear direction, a third electromagnet for driving the third slide seat to approach the first material channel 14, and a third spring 27 for driving the third slide seat to move away from the first material channel 14. For the structure, working principle, and beneficial effects of the third driving unit 59, reference can be made to the first driving unit 21, which will not be elaborated here. The third motor 58 is usually set as a servo motor. When it drives the sizing plate 57 to rotate back and forth, the connecting part 6 of the circuit chip 3 moves back and forth within the arc-shaped opening 61 of the sizing plate 57.

[0066] Example 10

[0067] As Figure 3 、 Figure 4 、 Figure 15As shown, on the basis of any one of Embodiments 4 to 9, the conveying mechanism 7 includes: a driving roller 64, a second driven roller 65 cooperating with the driving roller 64, and a second motor 66 for driving the driving roller 64 to rotate; the suction and release mechanism 9 includes: a plurality of vacuum suction nozzles 67 for sucking and releasing the circuit chips 3, a carriage 68 for mounting the vacuum suction nozzles 67, a third air cylinder 69 for driving the carriage 68 to move up and down, and a fifth power source 70 for driving the third air cylinder 69 to move back and forth; the cutting mechanism 10 includes: a cutting knife 71 located below the right end of the laminating table 8, and a sixth power source 72 for driving the cutting knife 71 to move up and down; a limiting strip 73 is provided above the right end of the laminating table 8 to limit the insulating tape 4 when the cutting knife 71 cuts the insulating tape 4; the core feeding mechanism 12 includes: a second pneumatic finger 74, a fifth air cylinder 78 for driving the second pneumatic finger 74 to move up and down, and a seventh power source 76 for driving the fifth air cylinder 78 to move back and forth; a second material channel 77 for supplying the column cores 2 is provided behind the winding mechanism 11; the top of the discharging end of the second material channel 77 is open for the core feeding mechanism 12 to take away the column cores 2.

[0068] It should be understood that the fifth power source 70, the sixth power source 72, and the seventh power source 76 can be set as linear air cylinders or linear motors.

[0069] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that various changes or modifications can be made to these embodiments without departing from the principles and essence of the present invention, and these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A printed circuit board assembly device, used for assembling a printed circuit board, the printed circuit board comprising: A column, and a cylinder (5) for accommodating the column; The column comprises: a hollow column (1), a column core (2) filled in the center of the hollow column (1); the hollow column (1) comprises: a composite tape surrounding the column core (2); the composite tape comprises: a circuit sheet (3), an insulating tape (4) superimposed on the circuit sheet (3); the circuit sheet (3) comprises: an insulating film, and a circuit arranged on the surface of the insulating film; the insulating tape (4) is made of glass fiber cloth or non-woven fabric and is impregnated with a resin adhesive; the length of the insulating tape (4) in the circumferential direction is greater than the length of the circuit sheet (3), so that the inner circumference and the outer circumference of the hollow column (1) are covered by the insulating tape (4); the end surfaces of the column and the cylinder (5) are covered with a resin adhesive to seal the column in the cylinder (5); the circuit sheet (3) is provided with a connecting portion (6), and the connecting portion (6) extends beyond the end surfaces of the column and the cylinder (5); the invention is characterized in that it comprises: A conveying mechanism (7) for conveying the insulating tape (4) from left to right; and a stacking platform (8) located on the right side of the conveying mechanism (7); and Delivering the circuit sheet (3) to the suction and placement mechanism (9) of the lamination table (8); and a cutting mechanism (10) located on the right side of the lamination platform (8); and a winding mechanism (11) located on the right side of the cutting mechanism (10); and A core feeding mechanism (12) for feeding the column core (2) to the winding mechanism (11); and A column taking mechanism (13) for taking the column from the winding mechanism (11); and A first material channel (14) for supplying the barrel (5); and A pushing mechanism (15) for driving the column into the barrel (5); and A glue-spreading mechanism (16) for evenly coating the end surfaces of the column and the cylinder (5) with the resin adhesive; and A material taking mechanism (17) for taking away the barrel (5).

2. The printed circuit board assembly device according to claim 1, characterized in that: The winding mechanism (11) comprises: a pressing unit for pressing against the front and rear ends of the column core (2), and a driven unit cooperating with the pressing unit; The abutment unit comprises: a coaxial active abutment shaft (18) and a driven abutment shaft (19), a first motor (20) for driving the active abutment shaft (18) to rotate, and a first driving unit (21) for driving the first motor (20) to move forward and backward; The driven clamping shaft (19) is rotatably mounted on the second slide seat (22) via a bearing and is adapted to be coupled to a second driving unit (23) that drives the second slide seat (22) to move forward and backward; The driven unit comprises: a first driven roller (24), and roller frames (25) located at both ends of the first driven roller (24); The end of the first driven roller (24) is rotatably mounted on the slider (26) via a bearing; The roller frame (25) comprises: a horizontal portion, and vertical portions extending upward from left and right ends of the horizontal portion; the two vertical portions are provided with sliding grooves on opposite sides to jointly limit the sliding block (26); The roller frame (25) is provided with a third spring (27) for driving the slider (26) to move upward, and a stopper for limiting the slider (26) is installed on the top of the roller frame (25).

3. The printed circuit board assembly device according to claim 2, characterized in that: The transverse portion has a guide hole extending vertically therethrough, the bottom of the slider (26) has a third guide rod (28) cooperating with the guide hole, and the third spring (27) is sleeved on the third guide rod (28); The first motor (20) is mounted on a first slide seat (29); The first driving unit (21) comprises: a first guide rail (30) cooperating with the first slide seat (29), a first electromagnet (31) driving the first slide seat (29) to approach the driven clamping shaft (19), and a first spring (32) driving the first slide seat (29) to move away from the driven clamping shaft (19); The second driving unit (23) comprises: a second guide rail (33) cooperating with the second slide seat (22), a second electromagnet (34) driving the second slide seat (22) to approach the active clamping shaft (18), and a second spring (35) driving the second slide seat (22) to move away from the active clamping shaft (18); The first guide rail (30) and the second guide rail (33) extend in the front-rear direction.

4. The printed circuit board assembly device according to claim 2 or 3, characterized in that: The column-taking mechanism (13) comprises: a bracket (36), a left arc plate (37) and a right arc plate (38) mounted on the bracket (36), and a first power source (39) for driving the bracket (36) to move left and right; A receiving cavity for receiving the column is formed between the left arc plate (37) and the right arc plate (38); The left arc plate (37) is provided with a plurality of first connecting tubes (40) extending radially outwardly along the accommodating cavity, and the bracket (36) is provided with a first mounting hole (41) for the first connecting tubes (40) to pass through; the first connecting tube (40) is provided with an external thread and is connected to the bracket (36) via a first nut; The right arc plate (38) is provided with a plurality of second connecting tubes (42) extending radially outwardly along the accommodating cavity, and the bracket (36) is provided with a second mounting hole (43) for the second connecting tubes (42) to pass through; the second connecting tube (42) is provided with an external thread and is connected to the bracket (36) via a second nut; A first notch is provided between the lower portion of the left arc plate (37) and the lower portion of the right arc plate (38) to allow the insulating tape (4) and the circuit sheet (3) to be sent from the laminating table (8) to the winding mechanism (11) and to avoid the first driven roller (24) of the winding mechanism (11).

5. The printed circuit board assembly device according to claim 4, characterized in that: The column taking mechanism (13) further comprises: a left guide member (44) and a right guide member (45); When the left guide member (44) and the right guide member (45) are closed, they cooperate with the column core (2) to form a guide gap (79) for guiding the insulating tape (4) and the circuit sheet (3) to be wound around the column core (2); When the left guide member (44) and the right guide member (45) are closed, a second notch is provided for the insulating tape (4) and the circuit sheet (3) to enter the guide gap (79); The left guide member (44) is provided with a plurality of first guide rods (46) extending radially outwardly along the column core (2), and each first guide rod (46) is respectively limited in each first connecting cylinder (40); The left guide member (44) is adapted to be driven by a first cylinder (47) to move radially along the accommodating cavity, the first cylinder (47) being mounted on a bracket (36), and the left arc plate (37) and the bracket (36) being provided with a hole for a piston rod of the first cylinder (47) to pass through; The left arc plate (37) is provided with a first receiving groove (48) for receiving the left guide member (44); The right guide member (45) is provided with a plurality of second guide rods (49) extending radially outwardly along the column core (2), and each second guide rod (49) is respectively confined within each second connecting cylinder (42); The right guide member (45) is adapted to be driven by a second cylinder (50) to move radially along the accommodating cavity, the second cylinder (50) being mounted on a bracket (36), and the right arc plate (38) and the bracket (36) being provided with a hole for the piston rod of the second cylinder (50) to pass through; The right arc plate (38) is provided with a second receiving groove (51) for receiving the right guide member (45).

6. The printed circuit board assembly device according to claim 4, characterized in that: The first material channel (14) comprises: a material storage section extending in the up-down direction, a material discharge section (56) extending in the horizontal direction, and an arc section connecting the bottom end of the material storage section and the material discharge section (56); The pushing mechanism (15) corresponds to the discharging section (56) in front and back; The material pushing mechanism (15) comprises: a material pushing member (52), and a second power source (53) for driving the material pushing member (52) to move forward and backward; The glue-distributing mechanism (16) comprises: glue-distributing units (54) located at the front and rear sides of the material discharging section (56); The glue-distributing unit (54) located between the material discharging section (56) and the material pushing mechanism (15) is adapted to be driven by a third power source (55) to move up and down; The front and rear ends of the discharge section (56) are open to expose the end surface of the cylinder (5); The glue-distributing unit (54) comprises: a glue-distributing disk (57), a third motor (58) for driving the glue-distributing disk (57) to rotate back and forth, and a third driving unit (59) for driving the third motor (58) to move forward and backward; The rubber distributing disk (57) is provided with a rubber retaining ring (60) on a side facing the material discharging section (56), and the inner diameter of the rubber retaining ring (60) is adapted to the outer diameter of the cylinder (5); The glue distribution plate (57) is provided with an arc-shaped opening (61) penetrating the front and rear surfaces to allow the connecting portion (6) of the circuit chip (3) to pass through; the length of the arc-shaped opening (61) in the arc direction is greater than the length of the connecting portion (6); The material picking mechanism (17) comprises: a first pneumatic finger (62), a fourth cylinder (75) for driving the first pneumatic finger (62) to move up and down, and a fourth power source (63) for driving the fourth cylinder (75) to move forward and backward; The top of the material discharging section (56) is open to allow the material taking mechanism (17) to take away the cylinder (5).

7. The printed circuit board assembly device according to any one of claims 1 to 3, characterized in that: The conveying mechanism (7) comprises: a driving roller (64), a second driven roller (65) cooperating with the driving roller (64), and a second motor (66) driving the driving roller (64) to rotate; The suction and placement mechanism (9) comprises: a plurality of vacuum suction nozzles (67) for suction and placement of the circuit chip (3), a slide (68) for mounting the vacuum suction nozzles (67), a third cylinder (69) for driving the slide (68) to move up and down, and a fifth power source (70) for driving the third cylinder (69) to move forward and backward; The cutting mechanism (10) comprises: a cutting knife (71) located below the right end of the stacking platform (8), and a sixth power source (72) for driving the cutting knife (71) to move up and down; The stacking platform (8) is provided with a limiting strip (73) at the upper right end to limit the insulating tape (4) when the cutting knife (71) cuts the insulating tape (4); The core feeding mechanism (12) comprises: a second pneumatic finger (74), a fifth cylinder (78) for driving the second pneumatic finger (74) to move up and down, and a seventh power source (76) for driving the fifth cylinder (78) to move forward and backward; A second material channel (77) for supplying the column core (2) is arranged behind the winding mechanism (11); the top of the discharge end of the second material channel (77) is open to allow the core delivery mechanism (12) to take away the column core (2).

8. A printed circuit board assembled by the printed circuit board assembly device according to any one of claims 1 to 7, characterized in that: include: Column; The column comprises: a hollow column (1), and a column core (2) filled in the center of the hollow column (1); The hollow column (1) comprises: a composite belt surrounding the column core (2); The composite tape comprises: a circuit sheet (3), and an insulating tape (4) superimposed on the circuit sheet (3); The circuit sheet (3) comprises: an insulating film, and a circuit arranged on the surface of the insulating film; The insulating tape (4) is made of glass fiber cloth or non-woven fabric and is impregnated with a resin adhesive; The length of the insulating tape (4) in the circumferential direction is greater than the length of the circuit sheet (3), so that both the inner circumference and the outer circumference of the hollow column (1) are covered by the insulating tape (4).

9. The printed circuit board according to claim 8, characterized in that: The insulating film is made of polyester film, polyimide film or fluorinated ethylene propylene film; The resin adhesive is epoxy resin, polyimide resin, polycyanate resin or polyolefin resin.

10. The printed circuit board according to claim 8 or 9, characterized in that: It also includes: a cylinder (5) for accommodating the column; The end surfaces of the column and the cylinder (5) are covered with a resin adhesive to seal the column inside the cylinder (5); The circuit sheet (3) is provided with a connecting portion (6), and the connecting portion (6) extends beyond the end surfaces of the column and the cylinder (5).

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