Crescent-shaped wheel-type coating machine

Abstract

This invention provides a crescent-shaped wheel coating machine, characterized by: a machine body including two lateral uprights; a coating wheel, which is axially arranged on the two lateral uprights via a main shaft, and the coating wheel has a circumferential surface for the substrate to abut and guide; two crescent-shaped guide rail assemblies, symmetrically arranged on the two lateral uprights, the two crescent-shaped guide rail assemblies being arc-shaped and their centers being concentrically aligned with the main shaft of the coating wheel; and a slit-type feed head including a slit outlet and two lateral assembly seats, the slit outlet corresponding to the circumferential surface of the coating wheel to extrude adhesive, and the two lateral assembly seats respectively corresponding to the two crescent-shaped guide rail assemblies, enabling the slit-type feed head to move and position along the circumferential surface of the coating wheel in a concentric arc path.

Claims

1. A crescent-shaped wheel coating machine for coating an adhesive onto a substrate; the crescent-shaped wheel coating machine includes: a machine body including two lateral uprights spaced apart; a coating wheel, which is axially arranged at a predetermined height position of the two lateral uprights via a main shaft, the coating wheel having a circumferential surface for the substrate to abut against and for guiding action; A two-crescent-shaped guide rail assembly is symmetrically arranged on the two lateral uprights. The two-crescent-shaped guide rail assembly is arc-shaped, and the center of its arc is concentrically aligned with the main shaft of the coating wheel. A slit-type feed head includes a slit outlet and two lateral assembly seats. The slit outlet corresponds to the circumference of the coating wheel for extruding the adhesive. The two lateral assembly seats are respectively assembled on the two-crescent-shaped guide rail assembly, allowing the slit-type feed head to perform concentric arc-shaped displacement adjustment and positioning along the circumference of the coating wheel, thus forming a crescent-shaped working path for the slit-type feed head. During the displacement of the slit feed head along the arc path, the slit outlet and the circumferential surface of the coating wheel maintain a constant and stable distance and angle relationship; the slit feed head also includes a fine-tuning mechanism for making slight displacement adjustments to the state of the slit outlet.

2. The crescent-shaped wheel coating machine as described in claim 1, wherein each crescent-shaped guide rail assembly includes an outer arc-shaped track and an inner arc-shaped track arranged at upper and lower intervals, wherein an outer wheel rail is formed on the outer side of the outer arc-shaped track, an inner wheel rail is formed on the inner side of the inner arc-shaped track, and a toothed row is formed on the inner side of the outer arc-shaped track; each lateral assembly seat of the slit-type feed head includes a plurality of first roller groups, a plurality of second roller groups, and a control gear, wherein the first roller groups are correspondingly combined with the... The outer wheel rail of the outer arc-shaped track, the second roller set correspondingly combined with the inner wheel rail of the inner arc-shaped track, and the control gear correspondingly combined with the gear rack on the inner side of the outer arc-shaped track; thereby, by utilizing the combination relationship between the first roller set and the outer wheel rail, and the second roller set and the inner wheel rail, the displacement and operation state of the crescent-shaped working path of the slit feed head is stabilized, and by utilizing the meshing state of the control gear and the gear rack, the slit feed head obtains a precise displacement stroke and positioning state.

3. The crescent-shaped wheel coating machine as described in claim 1, wherein each of the side uprights of the machine body is further provided with a vertical lifting guide rail; and a comma-shaped blade arranged horizontally at intervals above the coating wheel, wherein each of the two horizontal ends of the comma-shaped blade is connected to the corresponding vertical lifting guide rail by a guide seat, thereby enabling the comma-shaped blade to be in an adjustable state with a lowered position and an upper position, and a driver is used to drive and control the comma-shaped blade to perform the lifting action, thereby defining a lifting action path axis. When the comma-shaped blade is in the lowered position, it corresponds exactly to the upper part of the circumference of the coating wheel, and the lifting action path axis of the comma-shaped blade intersects with the upper section of the crescent-shaped working path of the slit feed head.

4. The crescent-shaped wheel coating machine as described in claim 3, wherein when the comma blade is in the descending position, a movable feed trough is provided on one side of the comma blade to form a glue supply unit that matches the comma blade.

5. The crescent-shaped wheel coating machine as described in claim 3, wherein each of the side uprights of the machine body is provided with a locking and releasing switching mechanism corresponding to the guide seat, for switching the locking or releasing state of the guide seat controlling the comma knife in the rising position.

6. The crescent-shaped wheel coating machine as described in claim 5, wherein the locking release switching mechanism includes a slot formed in each of the lateral uprights, and a pneumatic drive cylinder, a linkage swing plate, a pull rod, and a swing block disposed in each of the guide seats; wherein the linkage swing plate has a rotating support and a swing segment, the rotating support is screwed onto the end of the comma-shaped blade, the swing segment is pivotally responsive to the pneumatic drive cylinder, and the swing block is pivotally mounted on one of the guide seats, the swing block having The lever has a locking end and a driven end. The driven end is connected to the swing segment of the linked swing plate. The locking end of the swing block has a locking position and a releasing position depending on its swing angle. When it is in the locking position, it is precisely engaged in the corresponding slot of the side frame, thereby locking the guide seat in the rising position. Conversely, when the locking end of the swing block is in the releasing position, the guide seat is released and can be displaced to the falling position.

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