Air guide mat

Abstract

The present application relates to a kind of air guide cushion plate.The air guide cushion plate described in the present application includes: bottom plate;Several support nails, the support nail is arranged on the bottom plate, including shell and connecting block, the support surface of the shell is provided with inwardly recessed air guide groove, the shell side wall is provided with the notch being communicated with the air guide groove, the shell bottom is fixed with the bottom plate by connecting block;Positioning nail, including positioning seat and positioning pin, the positioning seat is set on the bottom plate, and the positioning pin is protrudingly set on the positioning seat.The air guide cushion plate described in the present application has the advantages of saving production cost and time, and good versatility.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air guide cushion plate, in particular to an air guide cushion plate. BACKGROUND

[0002] When the PCB is printed by the hole plugging machine, the ink will come out from the back of the PCB after passing through the through hole of the PCB. If the PCB is directly placed on the ordinary flat plate at this time, the ink will be stuck on the flat plate, and when the operator picks up the plate, the ink will be stuck away by the flat plate, causing the hole plugging quality to be unqualified. To solve this problem, the air guide cushion plate will be processed with corresponding avoidance holes in the hole position of the PCB in advance, so that the through hole corresponds to the avoidance hole when plugging the hole, so that the plate body will avoid the ink coming out from the back of the PCB, avoiding the ink being stuck away. At the same time, the air guide cushion plate cooperates with the bottom plate with an air guide channel, so that the bottom of the PCB is in communication with the atmospheric environment when plugging the hole, and the air can enter the bottom of the air guide cushion plate through the air guide channel, so that the air pressure of the upper and lower surfaces of the PCB is balanced. In this way, the cavity formed by the PCB and the avoidance hole of the air guide cushion plate can be prevented from forming a pressure difference in the atmospheric environment, so as to ensure the hole plugging quality. However, this results in that each PCB needs a corresponding air guide cushion plate, and each air guide cushion plate needs a corresponding bottom plate, which cannot be used universally, and the air guide cushion plates and the bottom plates need to consume manpower and material resources for maintenance and storage, increasing the production cost. In addition, there are tens of thousands of holes on a PCB, and a numerical control drilling machine is needed to drill holes on the air guide cushion plate when making the avoidance hole, which usually takes 4-10 hours to make an air guide cushion plate, which is too long and affects the production efficiency. SUMMARY

[0003] Based on this, the purpose of the present application is to provide an air guide cushion plate which has the advantages of saving production cost and time and good universality.

[0004] An air guide cushion plate, comprising:

[0005] a bottom plate;

[0006] a plurality of support nails arranged on the bottom plate, comprising a shell and a connecting block, a gas guide groove recessed inward is arranged on the support surface of the shell, a notch in communication with the gas guide groove is arranged on the side wall of the shell, and the bottom of the shell is fixed with the bottom plate through the connecting block;

[0007] a positioning nail comprising a positioning seat and a positioning pin, the positioning seat is arranged on the bottom plate, and the positioning pin is protrudingly arranged on the positioning seat.

[0008] The air guide cushion plate provided by the application is supported by supporting nails and balanced in air pressure by the gaps, and does not need to be drilled and provided with an air guide channel on the bottom plate, so that when the PCB board is replaced, the air guide cushion plate does not need to be replaced and drilled as a whole, and only the supporting nails in the difference area need to be rearranged to continue the operation. The air guide cushion plate has simple structure and is convenient to operate, saves a large amount of time for manufacturing and disassembling the air guide cushion plate in actual production, and improves the production efficiency. Meanwhile, the manufacturer using the air guide cushion plate does not need to manufacture a large number of corresponding air guide cushion plates according to the material number, and saves the processing and storage costs.

[0009] Further, the gap is formed with an opening on one side of the supporting surface, and the width of the opening is not less than the diameter of the through hole. This structure makes the gap play a role in balancing air pressure while also playing a role in avoiding ink, thereby ensuring the supporting effect of the supporting nails on the PCB board.

[0010] Further, the connecting block is a magnet that is attracted to the bottom plate. This structure can realize quick connection of the connecting block and the bottom plate, and is convenient for disassembling, arranging and adjusting the supporting nails.

[0011] Further, the bottom of the supporting nail is provided with a limiting layer made of a material with high friction coefficient or adhesive material. This structure can increase the friction between the supporting nail and the bottom plate, avoid horizontal movement or rotation of the supporting nail, and improve the stability.

[0012] Further, the adjusting gasket is detachably arranged between the supporting nail and the bottom plate, and the height of the supporting nail is adjusted by changing the number of the adjusting gaskets. This structure can eliminate the error of each component and is conducive to improving the quality of the hole.

[0013] Further, the adjusting gasket is made of a magnetic material or a metal material that can be attracted to the magnet. This structure ensures that the supporting nail and the bottom plate can be stably attracted.

[0014] Further, the bottom of the shell is provided with a containing groove, and the magnet is embedded in the containing groove. This structure stably connects the magnet and the shell.

[0015] Further, the bottom plate is further provided with an auxiliary fixing plate, the auxiliary fixing plate is provided with a positioning hole, the positioning nail is arranged in the positioning hole, and the auxiliary fixing plate is fixed by magnetic attraction or adhesive tape. The auxiliary fixing plate can facilitate positioning of the positioning nail and improve the arrangement efficiency.

[0016] Further, the bottom plate includes a plastic plate and an iron sheet arranged on the plastic plate. This structure can realize lightweight of the bottom plate and facilitate workers to carry.

[0017] Further, a scale is arranged on the bottom plate, and the scale is in a matrix shape. The structure facilitates quick arrangement of the support nails, improves the efficiency of arranging the nails, and reduces the time required for refueling.

[0018] For better understanding and implementation, the application is described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The arrangement of the support nails in Example 1 is shown schematically;

[0020] Figure 2 The cooperation of the PCB and the air guide cushion plate in Example 1 is shown schematically;

[0021] Figure 3 The structure of the support nail is shown schematically;

[0022] Figure 4 The cross-sectional view of the support nail and the adjusting washer is shown schematically;

[0023] Figure 5 The scale of the bottom plate is shown schematically.

[0024] Figure 6 The arrangement of the support nails and the positioning nail in Example 2 is shown schematically;

[0025] Figure 7 The cooperation of the PCB and the air guide cushion plate in Example 2 is shown schematically;

[0026] Figure 8 The cross-sectional view of the positioning nail and the auxiliary fixing plate is shown schematically;

[0027] BRIEF DESCRIPTION OF DRAWINGS 1, bottom plate; 2, support nail; 21, limiting layer; 22, shell; 221, support surface; 222, air guide groove; 223, notch; 224, accommodating groove; 23, connecting block; 3, adjusting washer; 4, positioning nail; 41, positioning seat; 42, positioning pin; 5, PCB; 51, positioning process hole; 6, auxiliary fixing plate. DETAILED DESCRIPTION

[0028] Example 1

[0029] Please refer to Figures 1-5 , Figure 1 The arrangement of the support nails in Example 1 is shown schematically; Figure 2 The cooperation of the PCB and the air guide cushion plate in Example 1 is shown schematically; Figure 3 The structure of the support nail is shown schematically; Figure 4 The cross-sectional view of the support nail and the adjusting washer is shown schematically; Figure 5 The scale of the bottom plate is shown schematically.

[0030] The application discloses a kind of air guide cushion plate, including bottom plate 1 and several support nails 2, the support nail 2 is arranged on the bottom plate 1, its arrangement mode and arrangement quantity can be adjusted according to the size and shape of PCB board 5 etc..When using, PCB board 5 is placed on the array of support nail 2, so that the support surface 221 of the top of support nail 2 is in abutment with PCB board 5.The bottom of the support nail 2 is provided with a limiting layer 21, the limiting layer 21 is made of material or adhesive material with high friction coefficient, such as double-sided adhesive tape etc., so that the support nail 2 is not easy to rotate or move in relative position on the bottom plate 1.

[0031] The support nail 2 also includes shell 22 and connecting block 23.The shell 22 can be designed into prismatic structure etc.Many kinds of structural forms.In the embodiment, the shell 22 is preferably cylindrical, the top surface is the support surface 221 of the shell 22, and the bottom surface is fixed with the bottom plate 1 through the connecting block 23.A inwardly recessed air guide groove 222 is provided on the support surface 221, the air guide groove 222 is tapered in shape and narrows inwardly from the support surface 221, and does not penetrate the shell 22, so that the side wall of the shell 22 is in the form of a ring-shaped thin wall structure, thereby reducing the contact area between the support nail 2 and the PCB board 5, so that the support nail 2 can avoid the ink at the through hole.

[0032] The support surface 221 can be a plane, or can be designed into a special shape to achieve different support effects.The support surface 221 and the PCB board 5 can be in surface contact or in line contact, thereby reducing the contact area with the PCB board 5, facilitating the support nail 2 to avoid the ink, and reducing the arrangement difficulty of the support nail 2.

[0033] An opening 223 is formed in the side wall of the shell 22 and communicates with the air guide groove 222, the opening 223 can be one, or a plurality of circumferentially distributed openings, and two openings are taken as examples in the embodiment, which are symmetrically arranged left and right.In use, the PCB board 5 covers the air guide groove 222, at this time the air guide groove 222 communicates with the outside air through the opening 223, so that the structure of the air guide channel formed in the plate body in the traditional air guide cushion plate can be replaced, so that air can enter the air guide groove 222 through the opening 223, and balance the pressure difference between the two sides of the PCB board 5 when the PCB board 5 is plugged.

[0034] The opening 223 can be in the form of a hole.As a preferred, the opening 223 forms an opening on one side of the support surface 221, and the width of the opening is not less than the diameter of the through hole.In use, the opening position can be adjusted to correspond to the through hole of the PCB board 5 by rotating the support nail 2, so that air can be guided at the same time, and the support surface 221 can avoid the through hole when the support surface 221 of the support nail 2 cannot avoid the through hole, so as to avoid the ink from adhering to the support nail 2.

[0035] The connecting block 23 is a magnet attracted to the bottom plate 1, the bottom of the shell 22 is provided with a receiving groove 224, the magnet is embedded in the receiving groove 224, and the magnet can be flush with the bottom surface of the shell 22 or protrude from the bottom surface. The limiting layer 21 can be provided at the bottom of the magnet or the bottom surface of the shell 22, or both the bottom of the magnet and the bottom surface of the shell 22 are provided with the limiting layer 21. The bottom plate 1 comprises a plastic plate and an iron sheet arranged on the plastic plate, the iron sheet can be attracted to the magnet, and the supporting nail 2 is fixed by the magnetic attraction. The iron sheet can be embedded in the plastic plate or adhered to one side of the plastic plate. The plastic plate can be made of PP material or high-friction coefficient material.

[0036] The iron sheet can also be replaced by soft magnetic sheet, iron plate and other materials that can be attracted to the magnet, or the bottom plate 1 can be designed as an integral iron platform to realize the arrangement of the supporting nail 2.

[0037] As preferred, the bottom plate 1 is provided with a scale, which is in a matrix shape, so as to facilitate the arrangement of the supporting nail 2 and improve the arrangement efficiency.

[0038] For the equipment with automatic feeding and discharging device, the bottom plate 1 can be slotted according to the structure of the equipment to avoid the clamp of the automatic feeding and discharging device. Since the automatic feeding and discharging device does not need to be replaced due to the change of the PCB board 5, the bottom plate 1 can still be used for processing of various PCB boards 5.

[0039] As preferred, the adjusting gasket 3 is detachably arranged between the supporting nail 2 and the bottom plate 1, so as to adjust the height of the supporting nail 2 by changing the number of the adjusting gasket 3, eliminate the error of each part, and be beneficial to the improvement of the quality of the hole. The adjusting gasket 3 can be connected with the supporting nail 2 by clamping, embedding, buckling and other connection modes, or can be a traditional sheet structure to be clamped between the supporting nail 2 and the bottom plate 1. The adjusting gasket 3 is made of magnetic material or metal material that can be attracted to the magnet. In order to avoid the whole supporting nail 2 from rotating or moving after the adjusting gasket 3 is added, the roughness of the surface of the adjusting gasket 3 needs to be improved, or a layer of material with high friction coefficient or adhesive material is also added to the surface of the adjusting gasket 3. The adhesive material needs to ensure that the supporting nail 2 is not easy to move or rotate during use, but when the operator adjusts the arrangement, the supporting nail 2 can be moved or rotated by increasing the force.

[0040] In use, the support nails 2 are arranged on the base plate 1 according to the structure of the PCB 5, and the position of the support nails 2 in the local area is fine-tuned according to the position of the through holes of the PCB 5, so that the support surface 221 avoids the ink flowing out of the through holes. If the position of the support nail 2 cannot avoid the ink, the position of the gap 223 of the support nail 2 can be adjusted by rotating the support nail 2, so that the gap 223 corresponds to the through hole. After the trial printing of the PCB 5, if the edge of the support nail 2 is found to be stained with ink, the support nail 2 needs to be adjusted by rotating the support nail 2 to avoid the ink. If the position of the support nail 2 still cannot avoid the ink after the support nail 2 is rotated, the support nail 2 at the position can be removed.

[0041] After the support nails 2 are arranged, the air guide cushion plate can be put into use. When the PCB 5 is plugged, air can enter the bottom of the PCB 5 through the gap 223 to balance the pressure difference between the two sides of the PCB 5. When the PCB 5 of the material number is processed and another PCB 5 of a different material number needs to be processed, the support nails 2 in the area with differences can be rearranged according to the differences in the layout of the through holes of the two PCBs 5, so that the work can continue without the need to remove the air guide cushion plate from the equipment.

[0042] The PCB 5 can be plugged by a vacuum plugging machine or a non-vacuum plugging machine, that is, the air guide cushion plate can adapt to all types of plugging machines. Especially when a vacuum machine is used for plugging, the two sides of the PCB 5 will change from a vacuum state to an atmospheric state, and the support nail 2 can balance the pressure difference between the two sides of the PCB 5 by allowing air to enter the bottom of the PCB 5 through the gap 233.

[0043] Embodiment 2

[0044] Please refer to Figures 6-8 , Figure 6 for the arrangement diagram of the support nails and the positioning nails described in Embodiment 2; Figure 7 for the cooperation diagram of the PCB and the air guide cushion plate in Embodiment 2; Figure 8 for the sectional view of the positioning nail and the auxiliary fixing plate.

[0045] This embodiment is basically the same as Embodiment 1, and the only difference is that it further includes a positioning nail 4. The positioning nail 4 includes a positioning seat 41 and a positioning pin 42. The positioning seat 41 is arranged on the base plate 1, and the positioning pin 42 is protrudingly arranged on the positioning seat 41. The positioning nail 4 can be adhered to the base plate 1 by glue, or be attracted to the base plate 1 by a magnet.

[0046] In actual production, a positioning process hole 51 is formed on the PCB 5, so the positioning pin 4 is arranged at a position corresponding to the positioning process hole 51 when the support pin 2 is arranged. Thus, when the PCB 5 is arranged on the support pin 2, the positioning pin 42 penetrates into the positioning process hole 51, so that the PCB 5 is quickly and repeatedly positioned in batch operation, and displacement of the PCB 5 in hole plugging operation is prevented.

[0047] Preferably, the bottom plate 1 is further provided with an auxiliary fixing plate 6, the auxiliary fixing plate 6 is provided with a positioning hole, and the positioning pin 4 is arranged in the positioning hole and fixed to the auxiliary fixing plate 6 by magnetic attraction or adhesive bonding.

[0048] The air guide cushion plate provided by the application is supported by the support pin and balanced in air pressure by the notch, and does not need to be drilled and provided with an air guide channel on the bottom plate, so that the air guide cushion plate does not need to be replaced and drilled as a whole when the PCB is replaced, and only the support pin in the difference area needs to be rearranged to continue operation. The air guide cushion plate has simple structure and is convenient to operate, saves a large amount of time for manufacturing and disassembling the air guide cushion plate in actual production, and improves production efficiency. Meanwhile, manufacturers using the air guide cushion plate do not need to manufacture a large number of corresponding air guide cushion plates according to the material number, and save processing and storage costs.

[0049] It should be understood that, in the description of the present application, the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified, the meaning of "a plurality of" is two or more.

[0050] It should be noted that, in the description of the present application, unless otherwise specified and limited, the terms "arranged", "connected", "connected", "hollow" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, and the present application also intends to include these modifications and improvements.

Claims

1. An air-guiding cushion plate, characterized in that, include: Base plate; A plurality of support pins are arranged on the base plate, including a housing and a connecting block. The support surface of the housing is provided with an inwardly recessed air guide groove. A notch communicating with the air guide groove is opened on the side wall of the housing. The notch forms an opening on one side of the support surface. The width of the opening is not less than the diameter of the through hole of the PCB board. The position of the notch is adjusted by rotating the support pin so that the notch corresponds to the through hole. The bottom of the housing is fixed to the base plate by the connecting block, which is a magnet that attracts the base plate. The positioning pin includes a positioning seat and a positioning pin, wherein the positioning seat is disposed on the base plate and the positioning pin is protruding from the positioning seat.

2. The air-guiding cushion plate according to claim 1, characterized in that: The bottom of the housing has a receiving groove, and the magnet is embedded in the receiving groove.

3. The air-guiding cushion plate according to claim 1, characterized in that: The bottom of the support nail is provided with a limiting layer, which is made of a material with a high coefficient of friction or an adhesive material.

4. The air-guiding cushion plate according to claim 1, characterized in that: It also includes adjusting shims, which are detachably disposed between the support pin and the base plate, and the height of the support pin can be adjusted by changing the number of the adjusting shims.

5. An air-guiding cushion plate according to claim 4, characterized in that: The adjusting shim is made of magnetic material or metal material that can attract a magnet.

6. The air-guiding cushion plate according to claim 1, characterized in that: An auxiliary fixing plate is also provided on the base plate. The auxiliary fixing plate has a positioning hole, and the positioning nail is placed in the positioning hole and fixed to the auxiliary fixing plate by magnetic attraction or adhesive tape.

7. The air-guiding cushion plate according to claim 1, characterized in that: The base plate includes a plastic sheet and an iron sheet disposed on the plastic sheet.

8. An air-guiding cushion plate according to claim 1, characterized in that: The base plate is provided with a scale, which is in a matrix shape.

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