TW202204233A - Transmission mechanism for horizontally conveying substrates including a plurality of roller sets, a plurality of anti-drop crawler belts, and a plurality of transmission crawler belts - Google Patents

Abstract

A transmission mechanism for horizontally conveying substrates includes: a plurality of roller sets arranged in sequence along the traveling direction of the substrate, each roller set including a plurality of supporting rollers for conveying the substrate; two guiding rollers used to guide the substrate when conveying the substrate; at least one central crawler belt drive wheel arranged between the supporting rollers; and at least one side crawler belt drive wheel arranged between the supporting roller and the guiding roller; a plurality of anti-drop crawler belts connected between the central crawler belt drive wheels of the two roller sets, whereby the central crawler belt drive wheels drive the anti-drop crawler belts; and a plurality of transmission crawler belts connected between the side crawler belt transmission wheels of the two roller sets, whereby the side crawler belt transmission wheels drive the transmission crawler belts.

Description

Transmission mechanism for horizontal conveying of substrates

The present invention relates to a transmission mechanism for horizontally conveying substrates, and in particular, to a transmission mechanism for horizontally conveying substrates with zero-jamming plates with an anti-drop track.

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 and other processes. 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. The transmission mechanism 9 can provide a narrow and wide substrate 2 placed on both sides for simultaneous operation, such as a hard board product or a flexible board product with a width of 200-300 mm. In order to prevent the board from falling off in the process of conveying the substrate, the rollers 91 are arranged very closely. Although there is no risk of dropping the plate, the gap between the rollers 91 is too small, and the spraying range of the substrate 2 by the nozzle 92 is limited.

Please refer to FIG. 3a and FIG. 3b, which show the second conventional transmission mechanism for conveying the substrate. The transmission mechanism 8 can also provide a narrow and wide substrate 2 placed on both sides for simultaneous operation, such as a hard board product or a soft board product with a width of 200-300 mm. The second type of transmission mechanism 8 removes part of the rollers 81 , which can be 5-10 times the pitch of the first type of transmission mechanism. Although the range in which the substrate 2 is sprayed by the nozzles 82 is increased, when the substrate is conveyed There is a risk of dropping the board during the process of the board, as shown in Figure 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 that the sprayed area of the substrate can be increased without the risk of falling off the substrate.

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

An object of the present invention is to provide a transmission mechanism for horizontally conveying a substrate with an anti-dropping track, which can improve the spraying range of the substrate without the risk of dropping the plate.

In accordance with the above purpose, the present invention provides a transmission mechanism for horizontally conveying substrates, comprising: a plurality of roller groups arranged in sequence along the traveling direction of the substrate, each group of roller groups including: a plurality of supporting rollers, arranged on the rollers A central area of the group is used for conveying the substrate; two guide rollers are arranged on both sides of the roller group to guide the substrate when conveying the substrate; at least one central crawler belt drive wheel , arranged between the supporting rollers; and at least one side crawler belt drive wheel, arranged between the supporting rollers and the guiding rollers; a plurality of anti-drop shoe tracks, connected to the two between the central track drive wheels of the roller set, whereby the central track drive wheel drives the anti-drop plate track; and a plurality of drive tracks connected between the side track drive wheels of the two roller sets, thereby The side track drive wheel drives the drive track.

The diameter of the guiding roller is larger than the diameter of the supporting roller path.

The diameter of the central track drive wheel is smaller than the diameter of the supporting rollers. The height of the anti-fall shoe track is lower than the height of the supporting rollers.

The height difference between the anti-drop shoe track and the supporting roller is 2mm.

The material of the anti-drop shoe track is acid and alkali resistant material.

The acid and alkali resistant material is Teflon (PTFE), Teflon (FFD), Teflon (PFA) or Teflon (ETFE).

The diameter of the side crawler pulley is less than or equal to the diameter of the central crawler pulley.

The supporting rollers, the guiding rollers, the central crawler drive wheel and the side crawler drive wheels are made of anti-foreign material and anti-sticking materials.

The anti-foreign body anti-stick material is Teflon (PFA).

The plurality of anti-drop shoe tracks are in the shape of filaments.

According to the transmission mechanism for horizontally conveying the substrate of the present invention, the rollers for guiding can guide the substrate when conveying the substrate. The plurality of anti-falling shoes can prevent the substrate from falling off when the substrate is transported. Compared with the prior art, the distance between the supporting rollers is larger, which can increase the spraying range of the substrate. The acid and alkali resistant material of the anti-dropping shoe track can prevent the residual chemical on the base plate from damaging the anti-dropping shoe track when the shoe is dropped. The anti-foreign material and anti-sticking materials of the supporting roller, the guiding roller, the central crawler drive wheel and the side crawler drive wheel can avoid sticking when conveying the substrate.

1: Transmission mechanism

10: Roller set

11: Rollers for support

12: Roller for guiding

13: Central track drive wheel

14: Side track drive wheel

15: Anti-drop shoe track

16: Transmission track

17: Nozzle

2: Substrate

8: Transmission mechanism

81: Roller

82: Nozzle

9: Transmission mechanism

91: Roller

92: Nozzle

D: Spacing

d: height difference

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.

FIG. 4 is a schematic cross-sectional view of the roller of the second conventional transmission mechanism for conveying the substrate, which shows the range where the substrate is sprayed.

5a and 5b are schematic plan and perspective views of a transmission mechanism for horizontally transporting substrates according to an embodiment of the present invention.

6a and 6b are schematic top and side views of a transmission mechanism for horizontally conveying substrates according to an embodiment of the present invention, which show that the substrates are being conveyed.

7 is a schematic cross-sectional view of a roller for horizontally conveying a substrate according to an embodiment of the present invention, which shows the range where the substrate is sprayed.

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 plan and perspective views of a transmission mechanism for horizontally transporting substrates according to an embodiment of the present invention. The substrate can be a circuit board, a rigid board or a flexible board. The transmission mechanism 1 includes: a plurality of roller sets 10 , a plurality of anti-drop shoe crawlers 15 and a plurality of transmission crawlers 16 . The plurality of roller sets 10 are sequentially arranged along the traveling direction of the substrate. Each set of rollers 10 includes: a plurality of rollers 11 for supporting, two rollers 12 for guiding, at least one central track drive wheel 13 and at least one side track drive wheel 14 .

Please refer to FIG. 5a and FIG. 5b, the supporting rollers 11 are arranged in a central area of the roller set 10 for conveying the substrate. These supporting rollers 11 are solid rollers. For example, the diameter of the supporting roller 11 is about 30 mm. The two guide rollers 12 are disposed on the two side regions of the roller set to guide the substrate when the substrate is conveyed. For example, the diameter of the guide roller 12 is about 45mm. The central crawler drive wheel 13 is arranged between the supporting rollers 11 . For example, the diameter of the central crawler pulley 13 is about 28-30 mm. The side track drive wheel 14 is arranged between the support roller 11 and the guide roller 12 . For example, the diameter of the side track drive wheel 14 is about 28 mm.

Please refer to FIG. 5a and FIG. 5b again, the plurality of anti-drop shoe tracks 15 are connected Between the central crawler drive wheels 13 of the two roller sets 10 , the central crawler drive wheel 13 can drive the anti-drop track 15 . When the substrate is transported, the anti-falling shoe track 15 can prevent the substrate from falling off the plate. In this embodiment, the plurality of anti-drop shoe tracks 15 may be in the shape of filaments. For example, the length of the filament-shaped anti-fall shoe track 15 may be about 250 mm. The material of the anti-drop shoe track 15 can be an acid and alkali resistant material, such as Teflon (PTFE), Teflon (FFD), Teflon (PFA) or Teflon (ETFE) and the like. Alternatively, the anti-falling shoe track 15 can be coated with a layer of acid-alkali-resistant ceramic film (eg, aluminum oxide) or an acid-alkali-resistant metal film (eg, titanium metal). The acid and alkali resistant material of the anti-dropping shoe track 15 can prevent the residual chemical on the base plate from damaging the anti-dropping shoe track 15 when the shoe is dropped. The plurality of drive tracks 16 are connected between the side track drive wheels 14 of the two roller sets 10 , whereby the side track drive wheels 14 can drive the drive tracks 16 . The diameter of the central crawler pulley 13 is smaller than the diameter of the supporting rollers 11 .

6a , 6b and 7 , the pitch D between the supporting rollers 11 is 10 times the pitch D of the conventional transmission mechanism, which can increase the spraying range of the substrate 2 by the nozzle 17 . The diameter of the guiding roller 12 is larger than the diameter of the supporting roller 11 , so that the guiding roller 12 can guide the substrate 2 when the substrate 2 is conveyed. The diameter of the central track drive wheel 13 is smaller than the diameter of the support roller 11, so that the height of the anti-drop shoe track 15 can be lower than the height of the support roller 11, such as the drop shoe track 15 and the support track 15. The height difference d of the rollers 11 is 2 mm, so that when the substrate 2 is conveyed, the anti-dropping track 15 will not hinder the rollers 11 for supporting to convey the substrate 2, but can prevent the substrate 2 from falling off. The diameter of the side crawler pulley 14 is smaller than or equal to the diameter of the central crawler pulley 13 . The supporting rollers 11 , the guiding rollers 12 , the central track drive wheel 13 and the side track drive wheels 14 can be made of anti-foreign material anti-sticking materials, such as Teflon (PTFE), Teflon (FFD) or Teflon (PFA) material. Alternatively, the supporting roller 11, the guiding roller 12, the central crawler drive wheel 13 and the side crawler drive wheel 14 can be coated with a layer of anti-foreign object anti-staining acid-base ceramic film (such as silicon dioxide) or Anti-foreign object anti-stick metal film (such as titanium metal). The resistance of the supporting roller 11, the guiding roller 12, the central crawler drive wheel 13 and the side crawler drive wheel 14 The material anti-stick material can avoid sticking when the substrate 2 is transported.

According to the transmission mechanism for horizontally conveying the substrate of the present invention, the rollers for guiding can guide the substrate when conveying the substrate. The plurality of anti-falling shoes can prevent the substrate from falling off when the substrate is transported. Compared with the prior art, the distance between the supporting rollers is larger, which can increase the spraying range of the substrate. The acid and alkali resistant material of the anti-dropping shoe track can prevent the residual chemical on the base plate from damaging the anti-dropping shoe track when the shoe is dropped. The anti-foreign material and anti-sticking materials of the supporting roller, the guiding roller, the central crawler drive wheel and the side crawler drive wheel can avoid sticking when conveying the substrate.

To sum up, the present invention merely 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 scope of the patent implementation of the present invention. 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

11: Rollers for support

12: Roller for guiding

13: Central track drive wheel

14: Side track drive wheel

15: Anti-drop shoe track

16: Transmission track

2: Substrate

Claims (11)

A transmission mechanism for horizontally conveying substrates, comprising: A plurality of roller sets are arranged in sequence along the traveling direction of the substrate, and each set of roller sets includes: A plurality of supporting rollers are arranged in a central area of the roller set for conveying the substrate; Two guide rollers are arranged on both sides of the roller set to guide the substrate when the substrate is conveyed; at least one central track drive wheel, disposed between the supporting rollers; and At least one side crawler drive wheel is arranged between the supporting roller and the guiding roller; A plurality of anti-drop shoe tracks are connected between the central track drive wheels of the two roller sets, whereby the central track drive wheels drive the drop shoe tracks; and A plurality of drive tracks are connected between the side track drive wheels of the two roller sets, whereby the side track drive wheels drive the drive tracks. The transmission mechanism for horizontally conveying substrates as described in item 1 of the scope of the application, wherein the diameter of the guiding roller is larger than the diameter of the supporting roller. The transmission mechanism for horizontally conveying substrates as described in claim 1, wherein the diameter of the central crawler belt drive wheel is smaller than the diameter of the supporting rollers. The transmission mechanism for horizontally conveying substrates as described in item 3 of the scope of the patent application, wherein the height of the anti-falling shoe track is lower than the height of the supporting rollers. The transmission mechanism for horizontally conveying substrates as described in item 4 of the scope of the patent application, wherein the height difference between the anti-falling shoe track and the supporting roller is 2mm. The transmission mechanism for horizontally conveying substrates as described in item 1 of the scope of the patent application, wherein the material of the anti-falling shoe track is an acid and alkali resistant material. The transmission mechanism for horizontally conveying substrates as described in item 6 of the scope of the patent application, wherein the acid and alkali resistant material is Teflon (PTFE), Teflon (FFD), Teflon (PFA) or Teflon ( ETFE). The transmission mechanism for horizontally conveying substrates as described in claim 1, wherein the diameter of the side crawler belt drive wheels is smaller than or equal to the diameter of the central crawler belt pulley. The transmission mechanism for horizontally conveying substrates as described in item 1 of the scope of the patent application, wherein the supporting rollers, the guiding rollers, the central crawler drive wheels and the side crawler drive wheels are made of materials that are resistant to foreign objects. Dip the material. The transmission mechanism for horizontally conveying substrates as described in item 9 of the scope of the patent application, wherein the anti-foreign object anti-sticking material is Teflon (PTFE), Teflon (FFD) or Teflon (PFA). The transmission mechanism for horizontally conveying substrates as described in item 1 of the scope of the patent application, wherein the plurality of anti-drop shoe tracks are in the shape of filaments.

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