TW202202421A - Transmission mechanism for horizontally or vertically conveying substrate and substrate conveying device disposing a plurality of embedded magnetic blocks in marginal areas at two sides of both the first mesh-like track and the second mesh-like track - Google Patents

Abstract

Disclosed is a transmission mechanism for horizontally or vertically conveying a substrate. The transmission mechanism includes two first transmission wheels; a first mesh-like track, wherein two first rollers drive the first mesh-like track in an advancing direction of the substrate; two second transmission wheels disposed relative to the two first transmission wheels; and a second mesh-like track, wherein two second rollers also drive the second mesh-like track in an advancing direction of the substrate, wherein a plurality of embedded magnetic blocks are disposed in marginal areas at two sides of both the first mesh-like track and the second mesh-like track; and when the embedded magnetic blocks of the first mesh-like track and the second mesh-like track attract to each other, marginal areas at two sides of the substrate are clamped between the marginal areas at two sides of the first mesh-like track and the marginal areas at two sides of the second mesh-like track, and therefore, the first mesh-like track and the second mesh-like track drive the substrate to advance.

Description

Transmission mechanism and substrate conveying equipment for horizontal or vertical conveying of substrates

The present invention relates to a transmission mechanism for horizontally or vertically conveying substrates, and in particular, to a substrate conveying device, which includes the first and second mesh crawler belts of the transmission mechanism for horizontally or vertically conveying substrates that can be driven The substrate moves forward smoothly, so that the liquid medicine reacts with the surface of the substrate uniformly, and the back-sticking of foreign objects is reduced or prevented.

With the increasing miniaturization and high-speed performance of electronic products, circuit boards have developed from single-sided to double-sided and multi-layered boards. Among them, double-sided circuit boards and multi-layer circuit boards are widely used because of their larger circuit area and higher assembly density.

There are many production processes for multi-layer circuit boards, generally including inner layer circuit production, inner layer inspection, lamination, drilling, electroplating, production of outer layer conductive circuit, circuit plating, outer layer inspection, solder mask, surface processing and cutting and forming. In order to improve production efficiency, a substrate conveying system is usually used to transport the substrates produced in the previous process to the workbench in the next process for production.

Please refer to FIG. 1a and FIG. 1b, which show a first conventional transmission mechanism for conveying substrates. When the substrate 2 is a sheet-like hard board product or a flexible board product, in order to prevent the board from falling off during the conveying of the substrate, the rollers 91 are arranged very closely, and a large number of blade rollers are required to drive the substrate 2 forward. However, the maintenance of the roller 91 is not easy and there is a risk of foreign matter sticking back. Furthermore, the range where the substrate 2 is sprayed by the nozzle 92 is small, as shown in FIG. 2 .

Please refer to FIG. 3a and FIG. 3b, which show the second conventional transmission mechanism for conveying the substrate. When the base plate 2 is a roll-shaped flexible board product or a rigid board product, since the transmission mechanism 8 has front and rear transmission wheels 80 to drive and support the base plate 2, the base plate 2 There is no need for blade rollers in the middle area, and the substrate 2 can be supported by rollers 81 with a wide pitch. Although the range of the substrate 2 to be sprayed by the nozzle 82 is increased, the roller still has the risk of foreign matter back-sticking, as shown in FIG. 4 .

ROC Patent Publication No. I351377 discloses a substrate conveying system, which includes a first conveying device, a second conveying device and a transferring device. The first conveying device includes a plurality of first conveying units distributed at intervals, and the second conveying device includes a plurality of second conveying units distributed at intervals. A first channel is formed between two adjacent first conveying units, and a second channel is formed between two adjacent second conveying units. The transfer device includes a lifting device and a plurality of carriers fixed on the lifting device. The lifting device is slidably disposed relative to the first channel and the second channel, so that the carrier can move along the first channel and the second channel. The substrate conveying system is convenient to change the conveying direction of the substrate and has high conveying efficiency.

However, the above-mentioned patent documents do not address the risk of foreign matter back-sticking of the rollers.

Therefore, there is a need to provide a transmission mechanism for conveying substrates horizontally or vertically, which can solve the aforementioned problems.

An object of the present invention is to provide a transmission mechanism for horizontally or vertically conveying substrates, wherein the first and second mesh crawler belts can drive the substrates to move forward smoothly, and reduce or prevent foreign objects from sticking back.

According to the above purpose, the present invention provides a transmission mechanism for conveying substrates horizontally or vertically, comprising: two first transmission wheels; A first roller drives the first mesh crawler along a forward direction of the base plate; two second transmission wheels are arranged opposite to the two first transmission wheels; and a second mesh crawler connects the two the second roller, whereby the two second rollers also drive the second mesh crawler along the advancing direction of the base plate; wherein the edge regions on both sides of the first and second mesh crawler are provided with a plurality of Embedded magnet blocks, when the embedded magnet blocks of the first and second mesh crawler tracks are attracted to each other, the edge regions on both sides of the base plate are sandwiched between the edges on both sides of the first mesh crawler track area and the edge areas on both sides of the second mesh track, whereby the first The first and second mesh crawlers drive the base plate forward.

The first and second meshed crawler belts of the transmission mechanism for horizontally conveying the substrate of the present invention can drive the substrate to move forward smoothly, and the meshed crawler belt is used to replace the design of the rollers, so as to increase the spraying range of the substrate, reduce or prevent foreign objects from sticking back, The surface defects of the substrate caused by the reverse dip of the roller in the prior art are avoided. Furthermore, the mesh track is easier to maintain than the rollers of the prior art.

The present invention further provides a substrate conveying equipment, comprising: a plurality of functional medicine water tanks; a plurality of transmission mechanisms, which are the transmission mechanisms for the above-mentioned vertical conveying substrates, and are respectively arranged in the functional medicine water tanks; The exposure area is arranged outside the entrance of the substrate and outside the outlet of the substrate; and a plurality of water blocking rollers are arranged inside and outside the entrance of the substrate and the outlet of the substrate of the functional medicine tank.

According to the substrate conveying equipment of the present invention, the first and second meshed crawler belts of the vertical transmission mechanism for conveying the substrates can drive the substrates to move forward smoothly, so that the liquid medicine reacts with the surface of the substrates uniformly, and the meshed crawler belts are used to reduce the Or prevent foreign objects from sticking. Furthermore, compared to rollers, mesh tracks are easier to maintain. The anti-foreign and anti-sticking materials of the first and second mesh crawlers can avoid sticking when the substrate is transported. In addition, the anti-foreign material anti-sticking material of the water blocking rollers can avoid sticking when the substrate is transported.

1: Transmission mechanism

11a: The first transmission wheel

11b: The first transmission wheel

12: The first mesh track

13a: The first transmission wheel

13b: The first transmission wheel

14: Second mesh track

15: Buried magnets

17: Nozzle

2: Substrate

3: Substrate conveying equipment

31: Functional Potion Tank

32: Potion overflow empty exposure area

33: Water blocking roller

8: Transmission mechanism

80: Transmission wheel

81: Roller

82: Nozzle

9: Transmission mechanism

91: Roller

92: Nozzle

D1: The first spacing

D2: The second spacing

E1: Edge area

E2: Edge area

F: Forward direction

M: Central area

W: width

1a and 1b are schematic top and side views of a first conventional transmission mechanism for conveying substrates, which show that the substrates are being conveyed.

FIG. 2 is a schematic cross-sectional view of the roller of the first conventional transmission mechanism for conveying the substrate, which shows the area where the substrate is sprayed.

3a and 3b are schematic top and side views of a second conventional transmission mechanism for conveying substrates, showing the substrate being conveyed.

4 is a schematic cross-sectional view of a roller of a second conventional transmission mechanism for conveying substrates, which is Displays the area where the substrate is sprayed.

5a and 5b are schematic top and side views of the transmission mechanism for horizontally conveying substrates according to the first embodiment of the present invention, which show that the substrates are being conveyed.

6 is a schematic cross-sectional view of the mesh crawler for horizontally conveying substrates according to the first embodiment of the present invention, which shows the range where the substrates are sprayed.

7a and 7b are schematic top and side views of a transmission mechanism for horizontally conveying substrates according to a second embodiment of the present invention, which show that the substrates are being conveyed.

8 is a schematic cross-sectional view of a mesh crawler for horizontally conveying substrates according to a second embodiment of the present invention, which shows the range where the substrates are sprayed.

9 is a partial plan view of the first and second mesh crawler tracks according to an embodiment of the present invention.

10 is a partial cross-sectional schematic diagram of the first and second mesh crawler tracks and the base plate according to an embodiment of the present invention.

FIG. 11a is a schematic top view of a substrate conveying apparatus according to an embodiment of the present invention.

FIG. 11b is a schematic perspective view of a transmission mechanism for vertically conveying substrates of a substrate conveying apparatus according to an embodiment of the present invention.

In order to make the above objects, features and characteristics of the present invention more obvious and easy to understand, the relevant embodiments of the present invention are described in detail as follows in conjunction with the drawings.

5a and 5b are schematic top and side views of the transmission mechanism for horizontally conveying the substrate according to the first embodiment of the present invention, which show that the substrate 2 is being conveyed. FIG. 6 is a schematic cross-sectional view of the mesh crawler for horizontally conveying substrates according to the first embodiment of the present invention, which shows the range of the substrate 2 sprayed by the nozzles 17 . The substrate of the first embodiment can be a sheet-like circuit board, a rigid board or a flexible board. 7a and 7b are schematic top and side views of the transmission mechanism for horizontally conveying the substrate according to the second embodiment of the present invention, which show that the substrate 2 is being conveyed. 8 is a schematic cross-sectional view of the mesh crawler for horizontally conveying substrates according to the second embodiment of the present invention, which shows the range of the substrate 2 sprayed by the nozzles 17 . second The substrate 2 of the embodiment can be a rolled circuit board, a rigid board or a flexible board.

5b and 7b again, the transmission mechanism 1 for horizontally conveying substrates includes: two first transmission wheels 11a, 11b, a first mesh crawler 12, two second transmission wheels 13a, 13b and a first Two mesh tracks 14. The first meshed crawler 12 is connected to the two first rollers 11a, 11b, whereby the two first rollers 11a, 11b drive the first meshed crawler 12 along a forward direction F of the base plate 2 . The two second transmission wheels 13a, 13b are disposed opposite to the two first transmission wheels 11a, 11b. The second mesh crawler 14 is connected to the two second rollers 13a, 13b, whereby the two second rollers 13a, 13b also drive the second mesh crawler 14 along the advancing direction F of the base plate 2 .

Please refer to FIG. 9 and FIG. 10 , the edge regions E1 and E2 on both sides of the first and second meshed crawler tracks 12 and 14 are provided with a plurality of embedded magnetic blocks 15 , for example, the first and second meshed The width W of the crawler belts 12 and 14 is 260 mm, the narrow width of the embedded magnetic blocks 15 is 5 mm, and the width of the edge regions E1 and E2 is greater than 5 mm. The width W of the first and second mesh crawlers 12 , 14 is substantially the same as the width W of the base plate 2 , and when the embedded magnets 15 of the first and second mesh crawlers 12 , 14 are mutually During adsorption, the edge areas M on both sides of the base plate 2 are sandwiched between the edge areas E1 and E2 on both sides of the first mesh crawler 12 and the edge areas E1 and E2 on both sides of the second mesh crawler 14 . During this time, the first and second mesh crawler belts 12 and 14 can drive the base plate 2 to move forward. The first and second mesh crawler tracks 12 and 14 are of hollow mesh design, which can reduce the anti-sticking of foreign objects. Furthermore, the material of the first and second mesh crawler tracks 12 and 14 is an anti-foreign object anti-sticking material, such as Teflon (PTFE), Teflon (FFD) or Teflon (PFA) material. Alternatively, the first and second mesh tracks 12 and 14 can be coated with a layer of acid-base ceramic film (such as silicon dioxide) or metal film (such as titanium metal) that resists foreign matter and anti-sticking, so as to prevent foreign matter from sticking back. dip.

Referring again to FIG. 9 , in this embodiment, on the edge region E1 and the edge region E2 on the same side of the first and second mesh crawler belts 12 and 14 , the adjacent embedded magnetic blocks 15 For example, the magnetic arrangement of the embedded magnetic blocks 15 on the edge region E1 on the same side is N-pole, S-pole, N-pole, S-pole, etc. in sequence. The edge regions E1, 14 on different sides of the first and second mesh crawler belts 12, 14 On E2, the magnetic properties between the two opposing embedded magnetic blocks are also opposite. For example, on the edge regions E1 and E2 on different sides, the magnetic properties of the two opposing embedded magnetic blocks 15 are respectively N pole and S pole, or N pole and S pole. When the first and second meshed crawler belts 12 and 14 drive the base plate 2 forward, the embedded magnetic blocks 15 and the second meshed crawler belt on the edge regions E1 and E2 of the first meshed crawler belt 12 The embedded magnetic blocks 15 on the corresponding suction edge regions E1 and E2 of 14 must have opposite magnetic properties. Alternatively, the embedded magnetic blocks 15 on the edge regions E1 and E2 of the first mesh crawler 12 have one of magnetic properties or magnetic permeability, and the second mesh crawler 14 has corresponding suction edge regions E1 and E2 The embedded magnetic blocks 15 above must have one of magnetic properties or magnetic permeability. The above-mentioned magnetic configuration of the embedded magnets 15 enables the embedded magnets 15 of the first and second mesh tracks 12 and 14 to be quickly and correctly attracted to each other. The embedded magnet blocks 15 can be electromagnets or permanent magnets.

In another embodiment, when the first and second meshed crawler belts 12 and 14 drive the base plate 2 forward, the embedded magnetic blocks 15 on the edge regions E1 and E2 of the first meshed crawler belt 12 It is sufficient to have magnetic properties, and the embedded magnetic blocks 15 on the correspondingly adsorbed edge regions E1 and E2 of the second mesh track 14 have opposite magnetic properties. The magnetic configuration of the embedded magnetic blocks 15 can make the The embedded magnetic blocks 15 of the first and second meshed tracks 12 and 14 are properly attracted to each other. In yet another embodiment, when the first and second mesh crawler belts 12 and 14 drive the base plate 2 forward, the embedded magnet blocks 15 on the edge regions E1 and E2 of the first mesh crawler belt 12 One of magnetic or magnetic permeability is sufficient, and the embedded magnetic blocks 15 on the correspondingly adsorbed edge regions E1 and E2 of the second mesh crawler 14 must have the other of magnetic or magnetic permeability. The above-mentioned The magnetic configuration of the embedded magnet blocks 15 can also make the embedded magnet blocks 15 of the first and second mesh crawler tracks 12 and 14 attract each other correctly.

Referring to FIG. 10 again, there is a first distance D1 between the central area M of the first mesh crawler 12 and the central area M of the base plate 2 , for example, the first distance D1 is 2 mm. Similarly, there is also a second distance D2 between the central region M of the second mesh crawler 14 and the central region M of the base plate 2 , for example, the second distance D2 is 2 mm. The sum of the first distance D1 and the second distance D2 is 4mm, which can allow the base The distance between the central area M of the plate 2 between the central area M of the first mesh crawler 12 and the central area M of the second mesh crawler 14 (that is, equal to the sum of the first and second distances D1 and D2) the thickness of the base plate 2 ) to avoid the first and second mesh crawler belts 12 , 14 from rubbing or damaging the central area of the base plate 2 .

The first and second mesh-shaped crawler belts of the transmission mechanism for horizontally conveying the substrate of the present invention can drive the substrate to move forward smoothly, and the mesh-shaped crawler belt is used to replace the design of the rollers, so as to increase the range of the substrate to be sprayed, and reduce or prevent foreign objects from sticking back. , to avoid the surface defects of the substrate caused by the reverse dip of the roller in the prior art. Furthermore, the mesh track is easier to maintain than the rollers of the prior art.

FIG. 11a is a schematic top view of a substrate conveying apparatus according to an embodiment of the present invention. FIG. 11 b is a schematic perspective view of a transmission mechanism for vertically conveying substrates according to an embodiment of the present invention. The substrate conveying device 3 includes: a plurality of functional medicine water tanks 31 , a plurality of transmission mechanisms 1 , a plurality of medicine water overflow empty aeration areas 32 and a plurality of water blocking rollers 33 . These functional liquid medicine tanks 31 make the liquid medicine react with the surface of the substrate 2 according to the operation parameters of the liquid medicine. The functional medicine water tank 31 can be made of stainless steel (SUS), polypropylene (PP), polyvinyl chloride (PVC), or the like. The transmission mechanism 1 is the transmission mechanism of the vertical conveying substrate of the present invention, and is respectively disposed in the functional medicine water tanks 31 . The two first transmission wheels 11a, 11b and the two second transmission wheels 13a, 13b are recirculation mesh crawler belt transmission wheels for driving the first and second mesh crawler belts 12, 14, respectively. For example, the two first transmission wheels 11a, 11b and the two second transmission wheels 13a, 13b are solid rollers, and the distance between the two first transmission wheels 11a, 11b and the two second transmission wheels 13a, 13b is about 20mm, And its material can be high crystalline polypropylene (HCPP).

In this embodiment, the substrate 2 can be a rolled circuit board or a flexible board. When the embedded magnets 15 of the first and second mesh tracks 12 and 14 are attracted to each other, the edge regions on both sides of the base plate 2 are sandwiched between the edges on both sides of the first mesh track 12 Between the area and the edge areas of the second mesh crawler 14 , the first and second mesh crawler belts 12 , 14 can drive the base plate 2 forward. Since the base plate 2 is held between the first mesh crawler 12 and the second mesh crawler 14 , the base plate 2 can move forward smoothly, so that the liquid medicine reacts with the surface of the base plate 2 uniformly. Furthermore, There are first and second distances between the central regions of the first and second mesh crawlers 12 and 14 and the central region of the base plate 2 , respectively. The first and second distances can be respectively 2mm, and the sum of the first and second distances can be 4mm, which allows the central area of the base plate 2 to be in the central area of the first mesh crawler 12 and the second mesh crawler. The center area of the base plate 2 is floated within the spacing of the center area, so as to avoid the first and second mesh crawlers 12 and 14 from rubbing or damaging the center area of the base plate 2 . For example, the thickness of the first and second mesh tracks 12 and 14 is about 0.08-0.25mm, and the material thereof is an anti-anti-staining material, such as Teflon (PTFE), Teflon (FFD) or Teflon Dragon (PFA) material. Alternatively, the first and second mesh crawler tracks 12 and 14 can be coated with an acid-base ceramic film (such as silicon dioxide) or a metal film (such as titanium metal) that resists foreign matter and anti-sticking, which can prevent foreign matter from sticking back. .

The potion overflow empty exposure areas 32 are disposed outside the substrate inlet and the substrate outlet of the functional potion tanks 31 , according to the overflow amount, to avoid contamination between the front and rear functional potion tanks 31 . The material of the liquid medicine overflow air exposure area 32 can be stainless steel (SUS), polypropylene (PP), polyvinyl chloride (PVC) and the like. The water blocking rollers 33 are disposed inside and outside the entrance of the substrate and inside and outside the exit of the substrate of the functional medicine water tank 31 to reduce the overflow flow of the medicine. Part of the water blocking rollers 33 are located in the liquid medicine overflow empty exposure areas 32 . For example, the diameter of the water blocking rollers 33 is about 20 mm, and the material thereof can be anti-sticking material such as Teflon (PTFE), Teflon (FFD) or Teflon (PFA). Alternatively, the water blocking rollers 33 can be coated with an acid-base ceramic film (eg, silicon dioxide) or a metal film (eg, titanium metal) that resists foreign matter and anti-sticking.

According to the substrate conveying equipment of the present invention, the first and second meshed crawler belts of the vertical transmission mechanism for conveying the substrates can drive the substrates to move forward smoothly, so that the liquid medicine reacts with the surface of the substrates uniformly, and the meshed crawler belts are used to reduce the Or prevent foreign objects from sticking. Furthermore, compared to rollers, mesh tracks are easier to maintain. The anti-foreign and anti-sticking materials of the first and second mesh crawlers can avoid sticking when the substrate is transported. In addition, the anti-foreign material anti-sticking material of the water blocking rollers can avoid sticking when the substrate is transported.

To sum up, the present invention only describes the preferred embodiments or examples of the technical means adopted by the present invention to solve the problem, and is not intended to limit the present invention. Scope of patent enforcement. That is, all the equivalent changes and modifications that are consistent with the context of the scope of the patent application of the present invention, or made in accordance with the scope of the patent of the present invention, are all covered by the scope of the patent of the present invention.

1: Transmission mechanism

11a: The first transmission wheel

11b: The first transmission wheel

12: The first mesh track

13a: The first transmission wheel

13b: The first transmission wheel

14: Second mesh track

15: Buried magnets

2: Substrate

Claims (15)

A transmission mechanism for horizontally or vertically conveying substrates, comprising: Two first transmission wheels; a first mesh crawler, connected to the two first rollers, whereby the two first rollers drive the first mesh crawler along a forward direction of the base plate; two second transmission wheels, which are disposed relative to the two first transmission wheels; and a second mesh crawler, which is connected to the two second rollers, whereby the two second rollers also drive the second mesh crawler along the advancing direction of the base plate; Wherein the edge regions on both sides of the first and second mesh crawler tracks are provided with a plurality of embedded magnetic blocks, when the embedded magnet blocks of the first and second mesh crawler tracks are attracted to each other, the The edge areas on both sides of the base plate are sandwiched between the edge areas on both sides of the first mesh crawler and the edge areas on both sides of the second mesh crawler, whereby the first and second mesh crawler drive The substrate advances. According to the horizontal or vertical transmission mechanism for conveying substrates as described in item 1 of the scope of the patent application, the materials of the first and second mesh-shaped crawler belts are anti-foreign and anti-sticking materials. The transmission mechanism for horizontal or vertical substrate conveying as described in item 2 of the scope of the patent application, wherein the anti-foreign object anti-sticking material is Teflon (PTFE), Teflon (FFD) or Teflon (PFA) material . The transmission mechanism for horizontally or vertically conveying substrates as described in item 1 of the scope of the application, wherein a first and a first and a second respectively are located between a central area of the first and second mesh crawler belts and a central area of the substrate Two spacing. The transmission mechanism for horizontally or vertically conveying substrates as described in item 4 of the scope of the patent application, wherein the distance between the first and second distances is 2 mm. The transmission mechanism for horizontally or vertically conveying substrates as described in claim 1, wherein when the first and second reticulated crawler belts drive the substrate forward, the edge region of the first reticulated crawler belt The embedded magnet blocks and the embedded magnet blocks on the correspondingly adsorbed edge regions of the second mesh track must have opposite magnetic properties. The transmission mechanism for horizontally or vertically conveying substrates as described in item 1 of the scope of the application, wherein when the first and second mesh crawler belts drive the substrates forward, the first The embedded magnets on the edge region of a mesh crawler have one of magnetic properties and permeability, and the embedded magnets on the edge region corresponding to adsorption of the second mesh crawler must have The other of magnetism and permeability. The transmission mechanism for horizontally or vertically conveying substrates as described in claim 6 or 7, wherein on the edge region of the same side of the first and second mesh crawler belts, adjacent embedded magnet blocks magnetic opposite. The transmission mechanism for horizontally or vertically conveying substrates as described in item 8 of the scope of the patent application, wherein on the edge regions on different sides of the first and second mesh crawler belts, the two opposite embedded magnetic blocks The magnetic properties are also opposite. The transmission mechanism for horizontally or vertically conveying substrates as described in claim 1, wherein the central area of the substrate is within the distance between the central area of the first reticulated crawler belt and the central area of the second reticulated crawler belt Move or float. A substrate conveying equipment, comprising: Multiple functional potion tanks; A plurality of transmission mechanisms, such as the transmission mechanism for vertical conveying of substrates as described in the first item of the patent application scope, are respectively arranged in the functional medicine water tanks; A plurality of potion overflow empty exposure areas are arranged outside the entrance of the substrate and outside the outlet of the substrate of the functional potion tanks; and A plurality of water blocking rollers are arranged inside and outside the entrance of the base plate and inside and outside the exit of the base plate of the functional medicine water tanks. The substrate conveying equipment as described in item 11 of the scope of the application, wherein some of the water blocking rollers are located in the liquid medicine overflow empty exposure areas. The substrate conveying equipment as described in claim 11, wherein the material of the first and second mesh crawler belts is anti-foreign and anti-sticking material. The substrate conveying equipment as described in claim 13, wherein the material of the water blocking rollers is an anti-foreign object and anti-sticking material. The substrate conveying equipment as described in claim 13 or 14 of the scope of the application, wherein the anti-foreign object anti-sticking material is Teflon (PTFE), Teflon (FFD) or Teflon (PFA) material.

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