TWI602760B - Sheet conveyor - Google Patents

Description

Sheet conveying mechanism

A transport mechanism, and more particularly to a transport mechanism for transporting sheets.

Printed circuit boards or other boards that are equipped with circuits must undergo multiple chemical processing procedures. Due to the large thickness of the early plates, they were transported horizontally in the chemical treatment process. With the continuous evolution of technology and the demand for thinner and lighter electronic products, the thickness of several printed circuit boards or related boards has become thinner (about 25μm~75μm), and the lines are getting finer (about 15μm~50μm). Therefore, the plate has become an ultra-thin flexible board. Therefore, if the traditional horizontal method is used to transport the flexible board, the board will be deformed due to its own flexibility and gravity, and it is easy to cause the board during the conveying process. The plate will be damaged, or even cause downtime, or the wire may be broken due to contact with the roller, and the product defect rate is quite high.

The main object of the present invention is to provide a thin plate conveying mechanism for supporting and conveying a thin plate having a thickness of less than 250 μm. The thin plate conveying mechanism of the present invention comprises an axle and two outer pulling rollers, and the two outer pulling rollers are respectively sleeved on the axle The two ends of the two outer pulling rollers are respectively formed with a guiding portion facing outward, and the guiding portion contacts the lower surface of the thin plate and drives the thin plate to move.

Wherein, the guiding portion is a ridge, and the ridge is deflected from the inside to the outside.

Moreover, the axle may be a hollow rod body having a space for the fluid to flow inside; the invention further includes a plurality of auxiliary rollers disposed on the axle and located between the two outer rollers. Each of the auxiliary rollers is drilled with a plurality of through holes that communicate with the space.

The present invention may further be provided with a gas compressor for generating a compressed gas, the gas compressor for injecting the compressed gas into the space of the axle, and passing the compressed air The space is drawn from the through holes.

Alternatively, the present invention may use a plurality of airflow rows and the gas compressor, the airflow exhaust sleeves being disposed on the axle and located between the two outer pull rollers, wherein the airflow rows are provided on a plurality of sides of the thin plate Stomata.

Furthermore, the present invention further comprises at least one limiting roller disposed on the two outer pulling rollers, and a gap is formed between the two outer pulling rollers for the passage of the thin plate to make the transmission of the thin plate more stable.

The thin plate conveying mechanism of the present invention can further use a plurality of axles, each of which includes two outer rollers. The guiding portions of the outer pulling rollers on the same side of the axles are aligned with each other; furthermore, the present invention further comprises two A support strip, a support strip ring is disposed on an outer peripheral surface of the outer pull roller 31 on the same side of the axles. The sheet is forced forward by the two support strips so that the front end of the sheet is maintained at the same level as other portions of the sheet during transport.

The main feature of the present invention is that the thin plate is driven by the guiding portions of the two outer pulling rollers, and the two sides of the thin plate are simultaneously moved outward during the advancement of the guiding thin plate, so that the concave of the thin plate can be avoided. In addition, the support strips can support both sides of the sheet to avoid jamming during sheet transport. The two outer pulling rollers and the supporting strips have substantial contact with the thin plate, and are particularly suitable for being disposed in the ineffective area of the thin plate. It can be understood from the embodiment of the present invention that the two outer pulling rollers and the supporting strip can avoid the overall depression of the thin plate. The support strips can support both sides of the sheet to maintain the front and back sides of the sheet horizontal.

Another feature of the present invention is that the thin air plate is supported by the airflow discharged by the auxiliary roller or the air flow, and the thin plate is supported by the non-substantial contact, and is particularly suitable for being disposed at the effective area of the thin plate. It can be understood from the embodiments of the present invention that the auxiliary roller or the airflow row can support the portion between the middle and the sides of the thin plate so that the portion between the two sides of the thin plate remains the same as the other portions of the thin plate. Level.

1‧‧‧Sheet transport mechanism

2‧‧‧Sheet

3‧‧‧ gas compressor

4‧‧‧Airflow

11‧‧‧Axle

13‧‧‧Extension roller

15‧‧‧Auxiliary wheel

17‧‧‧Limited wheel

100‧‧‧Support bars

111‧‧‧ Space

131‧‧‧Guide

151‧‧‧through hole

The first figure is a side view of the sheet conveying mechanism of the present invention.

The second figure is a schematic view of a preferred embodiment of the sheet conveying mechanism of the present invention.

The third figure is a schematic view of another preferred embodiment of the sheet conveying mechanism of the present invention.

The fourth figure is a side view of the use of a plurality of axles for the sheet conveying mechanism of the present invention.

Figure 5 is a side view of the support strip of the sheet conveying mechanism of the present invention.

The embodiments of the present invention will be described in more detail below with reference to the drawings and the <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt;

Referring to the first figure, a schematic side view of the sheet conveying mechanism of the present invention. As shown in the first figure, the sheet conveying mechanism 1 of the present invention is mainly used for supporting and conveying a sheet 2 having a thickness of less than 250 μm. The thin plate conveying mechanism 1 of the present invention comprises an axle 11 and two outer pulling rollers 13 respectively sleeved on two ends of the axle 11, wherein the outer peripheral surfaces of the two outer pulling rollers 13 are outwardly formed with a guide The guiding portion 131 contacts the lower surface of the thin plate 2 and drives the thin plate 2 to move.

In an embodiment of the invention, the guiding portion 131 is a ridge, and the ridge is deflected from the inside to the outside. Preferably, the relief is configured in a thread shape as shown in the first figure. Alternatively, the ridges are arranged in a wave shape, but are not limited thereto, that is, as long as the rib structures which can respectively guide the opposite sides of the thin plate 2 to move outward are included in the scope of the present invention.

Thereby, when the thin plate conveying mechanism 1 conveys the thin plate 2, the guiding portions 131 guide the opposite sides of the thin plate 2 to move outward, respectively, and generate an outward pulling force on opposite sides of the thin plate 2 to pull the The sheet 2 maintains the sheet 2 at the same level throughout the transfer.

Referring to the second figure, a schematic view of a preferred embodiment of the sheet conveying mechanism of the present invention. The wheel axle 11 can be a hollow shaft, and the interior of the axle 11 has a space 111 for fluid flow. The present invention is further provided with a plurality of auxiliary rollers 15, and the auxiliary rollers 15 are sleeved on the axle 11. And between the two outer pulling rollers 13, each of the auxiliary rollers 15 is drilled with a plurality of through holes 151, and the through holes 151 are in communication with the space 111.

The present invention may also be provided with a gas compressor 3 for generating a compressed gas for injecting the compressed gas into the space 111 of the axle 11, passing the compressed air through the space and from the space The through hole 151 is ejected. The gas extracted from the through holes 151 forms a plurality of soaring air flows, and the plurality of soaring air flows rise toward the thin plate 2, thereby driving the thin plate 2 to float, preventing the thin plate 2 from being bent and deformed, and causing the transfer process of the thin plate 2 It remains at the same level throughout it.

Referring to the third figure, a schematic view of another preferred embodiment of the sheet conveying mechanism of the present invention. Alternatively, the present invention can use a plurality of airflow rows 4 and the gas compressor 3, and the airflow rows 4 are sleeved on the axle 11 and located between the two outer pulling rollers 13, wherein the airflow rows 4 face the One side of the thin plate 2 is provided with a plurality of air holes (not shown); the gas compressor 3 is used for injecting the compressed gas into the air flow rows 4, so that the compressed air is drawn from the air holes 41 to form The multi-channel uplifting air drives the sheet 2 to float.

It should be noted that the auxiliary rollers 15 and the airflow rows 4 are disposed at the easy deformation of the thin plate 11, and the number of the auxiliary rollers 15 and the airflow rows 4 are not limited. The examples are intended to be illustrative, and are not intended to limit the scope of the invention.

Referring to the fourth figure, a schematic diagram of a limit roller of the thin plate conveying mechanism of the present invention. Further, the present invention further includes at least one limiting roller 17 disposed on the two outer pulling rollers 13 and forming a gap between the two outer pulling rollers for the thin plate 2 to pass through, so that the thin plate 2 is transferred. Do not float or lift up to make the transmission more stable. The limiting roller 17 can also be provided with a guiding portion 131.

Referring to the fourth figure, a side view of a plurality of axles of the sheet conveying mechanism of the present invention, see the fifth drawing, a side view of the support strip of the sheet conveying mechanism of the present invention. As shown in the fourth figure, a plurality of axles 11 are included, and each of the axles 11 includes two outer pulling rollers 13 which are respectively sleeved on both ends of the axle 11. The outer peripheral surface of the two outer pulling rollers 13 is formed with a guiding portion 131 facing outward, and the guiding portion 131 is in contact with the lower surface of the thin plate 2, and is a portion where the outer pulling roller 13 drives the thin plate 2 to move.

The guide portions 131 of the outer pull rollers 31 on the same side of the axles 11 are aligned with each other. The present invention further includes two support bars 100, and a support bar 100 is mounted on the same side of the axles 11 The outer peripheral surface of the outer pulling roller 31 is as shown in FIG.

When the thin plate 2 is driven by the outer pulling roller 13, the two supporting bars 100 are also driven, and the thin plate 2 can thus be advanced by the two supporting bars 100, and the front end of the thin plate 2 is prevented from falling between the axles 11. Spaces allow the front end of the sheet 2 to remain at the same level as the rest of the sheet 2 during transport.

The main feature of the present invention is that the thin plate is driven by the guiding portions of the two outer pulling rollers, and the two sides of the thin plate are simultaneously moved outward during the advancement of the guiding thin plate, so that the concave of the thin plate can be avoided. In addition, the support strip can support both sides of the thin plate to avoid the occurrence of the card when the thin plate is transferred. situation. The two outer pulling rollers and the supporting strips have substantial contact with the thin plate, and are particularly suitable for being disposed in the ineffective area of the thin plate. It can be understood from the embodiment of the present invention that the two outer pulling rollers and the supporting strip can avoid the overall depression of the thin plate. The support strips can support both sides of the sheet to maintain the front and back sides of the sheet horizontal.

Another feature of the present invention is that the thin air plate is supported by the airflow discharged by the auxiliary roller or the air flow, and the thin plate is supported by the non-substantial contact, and is particularly suitable for being disposed at the effective area of the thin plate. While avoiding scratching the effective area, it can be understood from the embodiment of the present invention that the auxiliary roller or the air flow row can support the portion between the middle and the sides of the thin plate so that the middle portion of the thin plate is between the two sides. The parts are kept at the same level as the rest of the sheet, and the sheet is smoothly transferred to improve product yield.

The above is only a preferred embodiment for explaining the present invention, and is not intended to limit the present invention in any way, and any modifications or alterations to the present invention made in the spirit of the same invention. All should still be included in the scope of the intention of the present invention.

1‧‧‧Sheet transport mechanism

11‧‧‧Axle

13‧‧‧Extension roller

131‧‧‧Guide

2‧‧‧Sheet

Claims (7)

A thin plate conveying mechanism for conveying a thin plate, comprising: an axle and two outer pulling rollers, wherein the two outer pulling rollers are respectively sleeved on two ends of the axle, wherein outer peripheral faces of the two outer pulling rollers are outwardly formed a guiding portion guiding the opposite sides of the thin plate to move outwardly, the wheel shaft is a hollow rod body, the inside of the wheel shaft has a space for fluid flow, and further comprises a plurality of auxiliary rollers. The auxiliary rollers are sleeved on the axle and located between the two outer pulling rollers, and an auxiliary roller is provided with a plurality of through holes, and the through holes communicate with the space. The sheet conveying mechanism according to claim 1, wherein the guiding portion is a ridge, and the ridge is deflected from the inside to the outside. The sheet conveying mechanism of claim 2, wherein the ridge is configured in a thread shape or a wave shape. The sheet conveying mechanism of claim 1, further comprising a gas compressor for generating a compressed gas for injecting the compressed gas into the space, the compressed air being entangled from the through holes Out. The sheet conveying mechanism of claim 1, wherein the sheet conveying mechanism further comprises at least one limiting roller disposed on the two outer pulling rollers, and a gap is formed between the two outer pulling rollers for the passage of the thin plate. The thin plate conveying mechanism of claim 1, further comprising a plurality of axles, each of the axles comprising two outer pulling rollers, wherein the two outer pulling rollers are respectively sleeved at two ends of the axle, wherein the two The outer peripheral surface of the outer pull roller is outwardly formed with a guiding portion. When the thin plate is conveyed, the guiding portion guides the opposite sides of the thin plate to move outward respectively, so that the thin plates are maintained at the same level during transportation. Further comprising two support bars, the two support bars are respectively mounted on the guiding portions of the two outer pulling rollers. The sheet conveying mechanism of claim 6, wherein the guide portions of the two outer pulling rollers of the axles are aligned with each other.