PCB preheating device and hole plugging equipment

Abstract

The utility model relates to the technical field of PCB manufacturing, in particular to a PCB preheating device and hole plugging equipment. According to the board inserting assembly, the PCB and the heating plate can be oppositely arranged, so that heating airflow output by the heating plate quickly and uniformly flows to the surface of the PCB, and the PCB is preheated; meanwhile, the PCB is arranged perpendicular to the horizontal plane, so that water vapor and liquid on the PCB can quickly flow out, and the PCB is relatively dry; the flowability of the hole plugging ink in the hole is improved, and the hole is more easily filled with the resin ink during hole plugging, so that the speed of the hole plugging scraper is increased, and the printing frequency of the hole plugging scraper is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of PCB manufacturing, especially relates to a PCB preheating device and a hole plugging equipment. BACKGROUND

[0002] The principle of PCB resin hole plugging is to fill resin material into the holes on the PCB to achieve electrical connection and protect the circuit board. During the PCB manufacturing process, holes need to be drilled on the circuit board to install electronic components and achieve circuit connection. However, these holes will increase the surface area of the circuit board, thereby reducing the reliability and stability of the circuit board. Therefore, it is necessary to fill the holes with resin material to reduce the surface area of the circuit board and improve the reliability and stability of the circuit board.

[0003] In the prior art, as the hole diameter becomes smaller and the aspect ratio becomes larger, the hole plugging scraper speed becomes slower, the hole plugging scraper printing frequency increases, and the hole plugging efficiency is reduced. SUMMARY

[0004] To solve the problems of the prior art, the utility model provides a PCB preheating device and a hole plugging equipment, which avoids the problems of slow hole plugging scraper speed, increased hole plugging scraper printing frequency and reduced hole plugging efficiency due to the smaller hole diameter and larger aspect ratio of the PCB resin hole plugging process.

[0005] The technical effects achieved by the utility model are realized through the following aspects:

[0006] In a first aspect, the utility model provides a PCB preheating device, which includes:

[0007] The rack includes a rack body, a bottom plate assembly and a door body assembly. The bottom plate assembly is arranged inside the rack body, and the door body assembly is arranged on the rack body and can be opened and closed.

[0008] The plug-in plate assembly is arranged inside the rack body and movably arranged above the bottom plate assembly. The plug-in plate assembly is used to place the PCB.

[0009] The heating assembly is arranged on one side of the rack body. The heating assembly is provided with a heating plate (21), and the heating plate is arranged adjacent to the PCB of the plug-in plate assembly.

[0010] In some implementations, the heating assembly further includes a heater and a blower,

[0011] The heating plate is vertically arranged on the bottom plate assembly, the heaters are fixed on a surface of the heating plate away from the plug-in plate assembly, and the air blower is fixed on the rack body and the air outlet of the air blower is arranged opposite to the heaters.

[0012] In some implementations, the heating plate is uniformly provided with a plurality of first through holes.

[0013] In some implementations, the heaters are infrared heaters, and the number of the heaters is multiple, and the multiple heaters are arranged in an array on the heating plate.

[0014] In some implementations, the bottom plate assembly comprises a plurality of panels and a plurality of roller assemblies, the panels are arranged adjacent to the roller assemblies, and the panels are provided with second through holes.

[0015] In some implementations, the plug-in plate assembly comprises a frame, a plurality of chassis and a partition plate, the frame is arranged on the bottom plate assembly, the plurality of chassis are arranged at intervals at the lower end of the frame, and the partition plate is movably arranged on the side wall of the frame; the upper surface of each chassis is uniformly provided with a plurality of clamping grooves.

[0016] In some implementations, limit rods are arranged on both sides of the frame, the partition plate is provided with a sleeve rod sleeved on the limit rods, and locking bolts are further arranged on the sleeve rod.

[0017] In some implementations, the door body assembly comprises at least a first door body assembly and a second door body assembly,

[0018] The first door body assembly is arranged on the side of the rack body and opposite to the heating assembly, and the first door body assembly is rotationally connected to the rack body through a hinge;

[0019] The second door body assembly is arranged on the upper end of the rack body and opposite to the bottom plate assembly, the upper end of the rack body is provided with a sliding groove, and the second door body assembly is provided with a sliding seat in sliding connection with the sliding groove.

[0020] In some implementations, the rack is further provided with a push rod and a plurality of pulleys, the push rod is arranged at the upper left corner or the upper right corner of the rack, and the plurality of pulleys are arranged at the four bottom corners of the bottom of the rack.

[0021] In the second aspect, the utility model provides a hole plugging equipment, including above -mentioned PCB preheating device, transfer device and hole plugging device, be located PCB board of the PCB preheating device is grabbed and is transferred to hole plugging device in resin hole plugging work through transfer device.

[0022] In summary, the utility model has at least the following advantages:

[0023] The PCB preheating device provided by the utility model, the device comprises a rack, a plugboard assembly and a heating assembly, the rack comprises a rack body, the plugboard assembly and a door body assembly, the bottom plate assembly is arranged inside the rack body, and the door body assembly is arranged on the rack body and can be opened and closed, the plugboard assembly is arranged above the bottom plate assembly in the rack body and can move, and the plugboard assembly is used for placing a PCB, the heating assembly is arranged on one side of the rack body, the heating assembly is provided with a heating plate, and the heating plate is arranged adjacent to the PCB of the plugboard assembly, the plugboard assembly of the utility model can realize the relative arrangement of the PCB and the heating plate, the heating airflow output by the heating plate can flow to the surface of the PCB quickly and uniformly, and the PCB can be preheated, meanwhile, the arrangement of the PCB perpendicular to the horizontal plane can make the water vapor and liquid on the PCB flow out quickly, so that the PCB is drier, the flowability of the hole ink is increased, the resin ink is easier to fill the hole when the hole is plugged, the speed of the hole scraping knife is improved, and the printing frequency of the hole scraping knife is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the PCB preheating device of example 1.

[0025] Figure 2 It is an internal schematic view of the PCB preheating device. Figure 1

[0026] Figure 3 It is a structural schematic view of the plugboard assembly of the PCB preheating device of example 2.

[0027] Markings in the drawing:

[0028] 1, rack; 11, rack body; 12, bottom plate assembly; 121, panel; 122, roller assembly; 123, second through hole; 13, door body assembly; 131, first door body assembly; 132, second door body assembly; 14, push rod; 15, pulley;

[0029] 2, heating assembly; 21, heating plate; 22, air blower; 23, heater; 211, first through hole;

[0030] 3, plugboard assembly; 31, frame; 311, limiting rod; 32, base frame; 321, clamping groove; 33, partition plate; 331, sleeve rod; 34, locking bolt. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely in combination with the drawings in the utility model embodiment. The described embodiment is a part of the embodiments of the utility model, rather than all the embodiments.​

[0032] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application.

[0033] Embodiment 1:

[0034] Please refer to the accompanying Figure 1 The accompanying Figure 3 The first embodiment of the PCB preheating device is provided, which is used for preheating the PCB board before plugging holes in the PCB resin, so as to avoid the problem that the hole plugging efficiency is reduced due to the hole plugging scraper speed being slower and the hole plugging scraper printing frequency being increased as the hole diameter becomes smaller and the aspect ratio becomes larger. The device specifically comprises a rack, a plug-in board assembly 3 and a heating assembly.

[0035] The rack 1 comprises a rack body 11, a bottom plate assembly 12 and a door body assembly. The bottom plate assembly 12 is arranged inside the rack body 11, and the door body assembly is arranged on the rack body 11 and can be opened and closed. The rack can be a floor rack or a rack body arranged on a movable storage cart. The rack body 11, the bottom plate assembly 12 and the door body assembly enclose the inside of the rack to form a preheating space.

[0036] The plug-in board assembly 3 is arranged inside the rack body 11 and movably arranged above the bottom plate assembly 12. The plug-in board assembly 3 is used for placing the PCB board. The plug-in board assembly 3 is used for placing the PCB board, so that the PCB board can be preheated in the rack.

[0037] The heating assembly 2 is arranged on one side of the rack body 11. The heating assembly 2 is provided with a heating plate 21, and the heating plate 21 is arranged adjacent to the PCB board arranged on the plug-in board assembly 3. The heating assembly heats the PCB board through the heating plate 21. Since the heating assembly is arranged on one side of the rack body 11, the PCB board is arranged opposite to the heating plate 21, so that the output heating airflow of the heating plate 21 flows quickly and uniformly to the surface of the PCB board, and the PCB board is preheated.

[0038] The utility model provides a PCB preheating device, the device includes frame 1, plugboard subassembly 3 and heating assembly 2, frame 1 includes frame body 11, plugboard subassembly 3 and door body subassembly, the bottom plate subassembly 12 is arranged in the frame body 11 inside, the door body subassembly can open and close and is arranged on the frame body 11, plugboard subassembly 3 is located in the frame body 11 and is movably arranged above the bottom plate subassembly 12, and plugboard subassembly 3 is used to place PCB board, and heating assembly is arranged in the frame body 11 one side, the heating assembly is provided with heating plate 21, and the heating plate 21 is adjacent to the PCB board arranged in plugboard subassembly 3. Through the plugboard subassembly 3 of the utility model can realize the opposite arrangement of PCB board and heating plate 21, make the heating airflow of heating plate 21 output flow to the surface of PCB board quickly and evenly, and carry out PCB board preheating, simultaneously, the water vapor and liquid on the PCB board can flow out quickly when the PCB board is arranged perpendicularly to the horizontal plane, so that the PCB board is drier, the flowability of the hole ink is increased, and the resin ink is filled in the hole more easily when the hole is plugged, so as to improve the scraping knife speed of hole plugging and reduce the printing frequency of hole plugging scraping knife.

[0039] Embodiment 2

[0040] The utility model provides a kind of second embodiment of PCB preheating device based on embodiment 1, and the second embodiment is further limited to heating assembly 2, plugboard subassembly 3 and frame 1 based on embodiment 1.

[0041] In some implementations, the heating assembly 2 further includes a heater 23 and a blower 22. The heating plate 21 is vertically arranged on the bottom plate subassembly 12. The heater 23 is fixed on a surface of the heating plate 21 away from the plugboard subassembly 3. The blower 22 is fixed on the frame body 11, and the air inlet of the blower 22 is oppositely arranged with the heater 23. In this embodiment, the heater 23 generates heat, and then the blower 22 blows the temperature generated by the heater 23 onto the plugboard subassembly 3. The heating plate 21 is uniformly provided with a plurality of first through holes 211, and the hot air blown by the blower 22 can be output to the PCB board through the first through holes 211. The uniform arrangement of the first through holes 211 makes the blown air more uniform. The heater 23 is an infrared heater 23, and the number of heaters 23 is multiple. The multiple heaters 23 are arrayed on the heating plate 21. The arrangement of the heaters 23 can further make the hot air blown to the PCB board more uniform.

[0042] In some implementations, the bottom plate assembly 12 includes a plurality of panels 121, a plurality of roller assemblies 122, the panels 121 are arranged adjacent to the roller assemblies 122, and the panels 121 are provided with second through holes 123. In this embodiment, by arranging the bottom plate assembly 12, the plug-in board assembly 3 can move on the upper surface of the bottom plate assembly 12. The plug-in board assembly 3 is placed above the roller assembly 122, the roller assembly 122 is connected with the driving motor, so that the roller assembly 122 drives the plug-in board assembly 3 to move under the driving of the driving motor. The panels 121 are provided with second through holes 123, the device can exhaust air through the second through holes 123, that is, the first through hole 211 of the heating plate 21 is the air inlet, and the second through hole 123 is the air outlet, so that the air pressure inside the rack is stable. At the same time, the second through hole 123 can also be used to exhaust excess liquid on the rack body 11.

[0043] In some implementations, the plug-in board assembly 3 includes a frame 31, a plurality of chassis 32, and a partition plate 33, the frame 31 is arranged on the bottom plate assembly 12, a plurality of chassis 32 are arranged at the lower end of the frame 31, and the partition plate 33 is movably arranged on the side wall of the frame 31; the upper surface of the chassis 32 is uniformly provided with a plurality of clamping grooves 321. In this embodiment, the plug-in board assembly 3 is used to place the PCB board, the bottom end of the vertically placed PCB board can be clamped and fixed on the clamping grooves 321, and the partition plate 33 is used to fix the two side faces of the PCB board. Specifically, the frame 31 is provided with a limiting rod 311 on both sides, the partition plate 33 is provided with a sleeve rod 331 sleeved on the limiting rod 311, and the sleeve rod 331 is further provided with a locking bolt 34. The width of the partition plate 33 and the side plate of the frame 31 can be set according to the width of the PCB board. By adjusting the position between the sleeve rod 331 and the limiting rod 311, the plug-in board assembly 3 can adapt to PCB boards of different sizes. After the position of the partition plate 33 is determined, the partition plate 33 is locked on the limiting rod 311 by the locking bolt 34.

[0044] In some implementations, the door body assembly 13 at least includes a first door body assembly 131 and a second door body assembly 132, the first door body assembly 131 is arranged on the side of the rack body 11 and opposite to the heating assembly, and the first door body assembly 131 is rotationally connected to the rack through a hinge; the second door body assembly 132 is arranged on the upper end of the rack body 11 and opposite to the bottom plate assembly 12, the upper end of the rack is provided with a sliding groove, and the second door body assembly 132 is provided with a sliding seat in sliding connection with the sliding groove. In the embodiment, the first door body assembly 131 can be used for inserting the board assembly 3 or the PCB board; the second door body assembly 132 can be used for taking out the material; and the automatic equipment can be facilitated to automatically preheat and dry the PCB board. The first door body assembly 131 can be rotationally opened outward through the hinge and the rack body 11, so that the first door body assembly 131 has a large opening, and the board assembly 3 or the PCB board can be inserted. The second door body assembly 132 can be connected through the sliding connection of the sliding seat and the sliding groove, and the door can be pushed and pulled to open and close, so that the taking-out equipment can take out the PCB board from the upper push-pull door for hole insertion. In addition, the second door body assembly 132 can be driven to open and close by a pneumatic cylinder.

[0045] In some implementations, the rack is further provided with a push rod 14 and a plurality of pulleys 15, the push rod is arranged at the upper left corner or the upper right corner of the rack, and the plurality of pulleys 15 are arranged at the four bottom corners of the bottom of the rack. In the embodiment, the PCB preheating device can be a preheating vehicle structure, that is, the device specifically includes a rack, a board inserting assembly 3 and a heating assembly, and the pulley 15 is arranged at the lower end of the rack, so that the PCB board can be moved and heated, and the PCB preheating device can be matched with the hole insertion equipment to avoid that the PCB board is exposed to air during transfer, so as to reduce the preheating effect of the PCB board. In a specific example, the PCB preheating device is a constant-temperature box, the board inserting assembly 3 with the PCB board inserted is placed into the preheating vehicle from the side, the temperature of the heating plate 21 is controlled, the board is taken out from the upper push-pull door for hole insertion, and the ink in the hole of the heating plate has better flowability, so that the hole insertion efficiency is improved.

[0046] Embodiment 3

[0047] The utility model provides a kind of hole insertion equipment, including the PCB preheating device of embodiment 1 or 2, transfer device and hole insertion device, PCB board in PCB preheating device is grabbed and transferred to hole insertion device by transfer device and carries out resin hole insertion work.

[0048] In the embodiment, the PCB preheating device comprises a rack, a plugboard assembly 3 and a heating assembly, the rack comprises a rack body 11, the plugboard assembly 3 and a door body assembly, the bottom plate assembly 12 is arranged inside the rack body 11, and the door body assembly is arranged on the rack body 11 and can be opened and closed; the plugboard assembly 3 is arranged inside the rack body 11 and movably arranged above the bottom plate assembly 12, and the plugboard assembly 3 is used for placing the PCB board; the heating assembly is arranged on one side of the rack body 11, the heating assembly is provided with a heating plate 21, and the heating plate 21 is arranged adjacent to the PCB board arranged on the plugboard assembly 3. The transfer device is used for transferring the PCB board in the PCB preheating device to the hole filling device, wherein the transfer device can be a multi-axis robot or the like. The hole filling device is used for filling the holes drilled on the PCB board with resin material. The resin material is generally solvent-free ink, which can make up for the problem that general ink is not easy to fill, and reduce the risk of cracks of the ink caused by heating.

[0049] The plugboard assembly 3 of the utility model can realize the relative arrangement of the PCB board and the heating plate 21, so that the output heating airflow of the heating plate 21 flows to the surface of the PCB board quickly and uniformly, and the PCB board is preheated; at the same time, the arrangement of the PCB board perpendicular to the horizontal plane can make the water vapor and liquid on the PCB board flow out quickly, so that the PCB board is drier; the flowability of the hole filling ink in the hole is increased, and the resin ink is more likely to fill the hole during hole filling, so that the hole filling scraper speed is improved, and the hole filling scraper printing frequency is reduced.

[0050] In the utility model, unless otherwise expressly provided and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0051] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for description, and cannot be understood as indicating or implying relative importance.

[0052] Furthermore, the terms "horizontal," "vertical," "up," "down," "upper," "lower," and the like are used herein for the convenience of the reader in relation to the illustrations given. They do not require the described structure or device to be constructed or operated in that particular orientation.

[0053] In the present application, unless specifically stated and limited otherwise, the first feature being on, above or below the second feature can include the first and second features being in direct contact, or can include the first and second features not being in direct contact but being in contact through another feature therebetween. Also, the first feature being on, above and over the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature being under, below and under the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0054] Although the present application has been described in connection with the embodiments thereof, it will occur to those skilled in the art that modifications and / or improvements can be made to the described embodiments without departing from the spirit and scope of the application. Therefore, it is to be understood that all such modifications and / or improvements are intended to be included within the scope of the following claims.

Claims

1. A PCB preheating apparatus, characterized by, The utility model relates to a rack (1) including rack body (11), bottom plate subassembly (12) and door body subassembly (13), bottom plate subassembly (12) is arranged inside rack body (11), door body subassembly can be opened and closed and is arranged on rack body (11), plugboard subassembly (3) is located in rack body (11) and is movably arranged above bottom plate subassembly (12), and plugboard subassembly (3) is used to place PCB board, and heating assembly (2) is arranged on one side of rack body (11), heating assembly (2) is provided with heating plate (21), and heating plate (21) is adjacent to the PCB board of plugboard subassembly (3) and is arranged. The heating assembly (2) further includes a heater (23) and a blower (22), The heating plate (21) is vertically arranged on the bottom plate subassembly (12), the heater (23) is fixed on a surface of the heating plate (21) away from the plugboard subassembly (3), and the blower (22) is fixed on the rack body (11) with the air inlet of the blower (22) opposite to the heater (23). The heating plate (21) is uniformly provided with a plurality of first through holes (211).

2. The PCB preheating device of claim 1, wherein, The heater (23) is an infrared heater (23), and the number of the plurality of heaters (23) is arrayed on the heating plate (21). The bottom plate subassembly (12) includes a plurality of panels (121) and a plurality of roller assemblies (122), the panels (121) are arranged adjacent to the roller assemblies (122), and the panels (121) are provided with second through holes (123).

3. The PCB preheating device of claim 2, wherein, The plugboard subassembly (3) includes a frame (31), a bottom bracket (32), and a partition plate (33), the frame (31) is arranged on the bottom plate subassembly (12), a plurality of bottom brackets (32) are arranged at the lower end of the frame (31) at intervals, and the partition plate (33) is movably arranged on the side wall of the frame (31); the upper surface of the bottom bracket (32) is uniformly provided with a plurality of clamping grooves (321).

4. The PCB preheating device of claim 2, wherein, The frame (31) is provided with a limiting rod (311) on both sides, the partition plate (33) is provided with a sleeve rod (331) sleeved on the limiting rod (311), and the sleeve rod (331) is further provided with a locking bolt (34).

5. The PCB preheating device of claim 1, wherein The door body subassembly (13) includes at least a first door body subassembly (131) and a second door body subassembly (132), 6. The PCB preheating device of claim 1, wherein The first door body subassembly (131) is arranged on the side of the rack body (11) and opposite to the heating assembly, and the first door body subassembly (131) is rotatably connected to the rack through a hinge; 7. The PCB preheating device of claim 6, wherein The second door body subassembly (132) is arranged on the upper end of the rack body (11) and opposite to the bottom plate subassembly (12), and the upper end of the rack is provided with a sliding groove, and the second door body subassembly (132) is provided with a sliding seat slidably connected with the sliding groove.

8. The PCB preheating device of claim 1, wherein, ​ ​ ​ 9. The PCB preheating device of claim 1, wherein, The rack is also provided with a push rod (14) and a plurality of pulleys (15), the push rod (14) is arranged at the upper left corner or the upper right corner of the rack, and the plurality of pulleys (15) are arranged at the four bottom corners of the bottom of the rack.

10. A jack device, characterized by The PCB preheating device, the transfer device and the hole plugging device according to any one of claims 1-9 are included, and the PCB board in the PCB preheating device is grabbed and transferred to the hole plugging device by the transfer device to perform resin hole plugging work.

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