Solvent coating application mechanism

Abstract

A solvent coating mechanism is disclosed, suitable for coating a workpiece. It includes a plurality of coating wheel sets and a plurality of gear linkage sets. Each coating wheel set comprises a first coating wheel, a second coating wheel, a transfer wheel, and a receiving wheel. The transfer wheel contacts the first coating wheel, the second coating wheel, and the receiving wheel, respectively, allowing solvent to transfer from the receiving wheel to the transfer wheel, and then to the first and second coating wheels. The two opposing coating wheel sets clamp the workpiece between the first and second coating wheels for coating. The gear linkage sets are located at the rear end of the coating wheel sets. Through the meshing of staggered double gears and single gears, the wheels rotate in unison. An elastic connector maintains the staggered preload on the double gears to eliminate backlash, thereby improving transmission stability, reducing slippage risk, and improving coating thickness and uniformity.

Claims

1. A solvent coating mechanism, suitable for coating a workpiece, comprising: A plurality of coating wheel sets, each including a first coating wheel, a second coating wheel, a transfer wheel, and a receiving wheel, wherein the transfer wheel is in contact with the first coating wheel, the second coating wheel, and the receiving wheel respectively, so that solvent is adsorbed from the receiving wheel to the transfer wheel, and then transferred from the transfer wheel to the first coating wheel and the second coating wheel respectively. Two opposing coating wheel sets are symmetrically arranged, with the first coating wheel and the second coating wheel clamping the workpiece for solvent coating; and a plurality of gear linkage groups, each gear linkage group being located at the rear end of the coating wheel sets, each gear linkage group including... A misaligned double gear is connected to the first coating wheel, the second coating wheel, and the receiving wheel, respectively, and a single gear is connected to the transfer wheel. The single gear meshes with the misaligned double gear, causing the first coating wheel, the second coating wheel, the transfer wheel, and the receiving wheel to rotate in conjunction. Each misaligned double gear includes a first gear and a second gear arranged coaxially. An elastic connecting member is provided between the first gear and the second gear to maintain a misaligned preload along the rotation direction, thereby eliminating the meshing backlash between the misaligned double gear and the adjacent single gear.

2. The solvent coating mechanism as claimed in claim 1, wherein the first gear and the second gear of the staggered double gear are respectively provided with a positioning part, the positioning part of the first gear and the positioning part of the second gear are staggered on the same circumference and are used to connect the two ends of the elastic connector, and the first gear and the second gear of the staggered double gear have the same tooth profile and the same number of teeth.

3. The solvent coating mechanism as claimed in claim 1, further comprising a frame, the coating wheel assembly being disposed on the front side of the frame, the gear linkage assembly being disposed on the rear side of the frame, and the first coating wheel, the second coating wheel, the transfer wheel and the receiving wheel being coaxially connected to the corresponding misaligned double gear or the single gear via a shaft.

4. The solvent coating mechanism as claimed in claim 3, further comprising a plurality of gap adjustment mechanisms for adjusting the relative positions of the first coating wheel, the second coating wheel, the transfer wheel and the receiving wheel, to control the thickness of the solvent coating on the surface of the workpiece.

5. The solvent coating mechanism as claimed in claim 4, wherein the gap adjustment mechanism includes a first plate, a first fine-tuning member, and at least one first slide rail, the first slide rail and the first fine-tuning member are fixed to the frame, the first plate is connected to the first coating wheel and slides on the first slide rail, and the first fine-tuning member is linked to the first plate to drive the first plate to move along the first slide rail, thereby fine-tuning the position of the first coating wheel.

6. The solvent coating mechanism as claimed in claim 5, wherein the gap adjustment mechanism further includes a second plate, a second fine-tuning member, and at least a second slide rail, wherein the second slide rail and the second fine-tuning member are fixed to the first plate, the second plate is connected to the transfer wheel and slides on the second slide rail, and the second fine-tuning member is linked to the second plate to drive the second plate to move along the second slide rail, thereby fine-tuning the position of the transfer wheel relative to the first coating wheel.

7. The solvent coating mechanism as claimed in claim 6, wherein the gap adjustment mechanism further includes a third plate, a third fine-tuning member, and at least a third slide rail, the third slide rail and the third fine-tuning member being fixed to the second plate, the third plate being connected to the receiving wheel and slidingly disposed on the third slide rail, and the third fine-tuning member being linked to the third plate to drive the third plate to move along the third slide rail, thereby fine-tuning the position of the receiving wheel relative to the transfer wheel.

8. The solvent coating mechanism as claimed in claim 7, wherein the gap adjustment mechanism further includes a fourth plate, a fourth fine-tuning member, and at least a fourth slide rail, the fourth slide rail and the fourth fine-tuning member being fixed to the first plate, the fourth plate being connected to the second coating wheel and slidingly disposed on the fourth slide rail, and the fourth fine-tuning member being linked to the fourth plate to drive the fourth plate to move along the fourth slide rail, thereby fine-tuning the horizontal position of the second coating wheel.

9. The solvent coating mechanism as claimed in claim 8, wherein the shaft of the second coating wheel is disposed at a shaft housing and the shaft housing is fixed to the fourth plate, and an adjustment member is provided at the fourth plate, the adjustment member correspondingly pushing the shaft housing to adjust the fixed position of the shaft housing relative to the fourth plate, thereby fine-tuning the vertical position of the second coating wheel.

10. The solvent coating mechanism as claimed in claim 9, wherein the gap adjustment mechanism further includes a pneumatic damper fixed to the frame and the pneumatic damper elastically pressing against the first plate to control the first coating wheel and the second coating wheel to provide a gap elastic buffering function.

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