Precision squeegee grinder apparatus

Patent metadata

Field	Value
Publication number	US-11731237-B2
Application number	US-201916689559-A
Country	US
Kind code	B2
Filing date	Nov 20, 2019
Priority date	Nov 20, 2019
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

A precision squeegee grinder including a grinder assembly configured to grind an edge of a squeegee blade, a squeegee mounting assembly configured to hold the squeegee blade, a grinder assembly vertically alignable with respect to the squeegee mounting assembly, a latitudinal movement assembly connected to the grinder assembly, the latitudinal movement assembly configured to position the grinder assembly with respect to the squeegee blade in defined increments, a longitudinal movement assembly connected to the latitudinal movement, the longitudinal movement assembly configured to move the grinder assembly along a width of the squeegee blade, and a base assembly. The grinder assembly, the squeegee mounting assembly, the latitudinal movement assembly, and the longitudinal movement assembly are connected to the base assembly. The squeegee mounting assembly, the latitudinal movement assembly, and the longitudinal movement assembly enable triaxial alignment between the grinder assembly and the squeegee blade.

First claim

What is claimed is:

1. A precision squeegee grinder comprising:
a grinder assembly configured to grind an edge of a squeegee blade;
a squeegee mounting assembly configured to hold the squeegee blade, the grinder assembly vertically alignable with respect to the squeegee mounting assembly;
a latitudinal movement assembly connected to the grinder assembly, the latitudinal movement assembly configured to position the grinder assembly with respect to the squeegee blade in defined increments;
a longitudinal movement assembly connected to the latitudinal movement assembly, the longitudinal movement assembly configured to move the grinder assembly along a width of the squeegee blade; and
a base assembly comprising a base plate and a first pair of linear guides connected to the base plate, the first pair of linear guides configured to guide movement of the longitudinal movement assembly along the width of the squeegee blade, wherein the grinder assembly, the squeegee mounting assembly, the latitudinal movement assembly, and the longitudinal movement assembly are connected to the base assembly,
wherein the longitudinal movement assembly comprising:
a carriage plate configured to glide on the first pair of linear guides, the carriage plate comprising:
a micrometer and a dial indicator;
a second pair of linear guides, the second pair of linear guides configured to guide movement of the latitudinal movement assembly with respect to the squeegee blade; and
a cutout region configured to allow movement of the latitudinal movement assembly,

wherein the latitudinal movement assembly comprising:
a cross-slide plate configured to glide on the second pair of linear guides, the cross-slide plate comprising:
a stopper configured to be engaged with the micrometer, wherein the micrometer engages the stopper to drive movement of the cross-slide plate across the second pair of linear guides, and

wherein the squeegee mounting assembly, the latitudinal movement assembly, and the longitudinal movement assembly enable triaxial alignment between the grinder assembly and the squeegee blade.

2. The precision squeegee grinder of claim 1 , the longitudinal movement assembly further comprising:
a handle for moving the carriage plate on the first pair of linear guides.

3. The precision squeegee grinder of claim 1 , the latitudinal movement assembly further comprising:
a plexiglass shield.

4. The precision squeegee grinder of claim 3 , the grinder assembly further comprising:
a diamond wheel grinder;
a bearing assembly;
a motor; and
an output shaft connected to the motor and to the bearing assembly and the diamond wheel grinder via an opening in the cross-slide plate,
wherein the motor drives the diamond wheel grinder via the output shaft, and
wherein the bearing assembly inhibits deflections of the output shaft.

5. The precision squeegee grinder of claim 4 , the squeegee mounting assembly further comprising:
a squeegee mount; and
a squeegee clamp,
wherein the squeegee blade is held between the squeegee mount and the squeegee clamp.

6. The precision squeegee grinder of claim 5 , the squeegee mounting assembly further comprising:
a bare squeegee adapter configured to engage a bare squeegee blade,
wherein the bare squeegee adapter fits on the squeegee mount.

7. A precision squeegee grinder comprising:
a base plate;
a squeegee mounting assembly configured to hold the squeegee blade;
a grinder assembly vertically alignable with respect to the squeegee mounting assembly on a first axis;
a second axis movement assembly connected to the grinder assembly, the second axis movement assembly configured to position the grinder assembly along a second axis;
a third axis movement assembly connected to the second axis and the base plate, the third axis movement assembly configured to position the grinder assembly along a third axis; and
third axis linear guides connected to the base plate, the third axis linear guides configured to guide movement of the third axis movement assembly,
wherein the third axis movement assembly further comprising:
a carriage plate configured to glide on the third axis linear guides, the carriage plate further comprising:
a micrometer and a dial indicator;
second axis linear guides, the second axis linear guides configured to guide movement of the second axis movement assembly; and
a cutout region configured to allow movement of the second axis movement assembly,

wherein the second axis movement assembly further comprising:
a cross-slide plate configured to glide on the second axis linear guides, the cross-slide plate further comprising:
a stopper configured to be engaged with the micrometer, wherein the micrometer engages the stopper to drive movement of the cross-slide plate across the second axis linear guides, and

wherein triaxial alignment between the grinder assembly and the squeegee blade is enabled via the squeegee mounting assembly, the second axis movement assembly, and the third axis movement assembly.

8. The precision squeegee grinder of claim 7 , the third axis movement assembly further comprising:
a handle for moving the carriage plate on the third axis linear guides.

9. The precision squeegee grinder of claim 7 , the second axis movement assembly further comprising:
a plexiglass shield.

10. The precision squeegee grinder of claim 7 , the grinder assembly further comprising:
a diamond wheel grinder;
a bearing assembly;
a motor; and
an output shaft connected to the motor and to the bearing assembly and the diamond wheel grinder via an opening in the cross-slide plate,
wherein the motor drives the diamond wheel grinder via the output shaft, and
wherein the bearing assembly inhibits deflections of the output shaft.

11. The precision squeegee grinder of claim 10 , the squeegee mounting assembly further comprising:
a squeegee mount; and
a squeegee clamp,
wherein the squeegee blade is held between the squeegee mount and the squeegee clamp.

12. The precision squeegee grinder of claim 11 , the squeegee mounting assembly further comprising:
a bare squeegee adapter configured to engage a bare squeegee blade,
wherein the bare squeegee adapter fits on the squeegee mount.

Assignees

• Jabil Inc

Inventors

• Hayavi Hadi

Classifications

• B24B19/22

  characterised by a special design with respect to properties of the material of non-metallic articles to be ground · CPC title

• B24B41/005 Primary

  Feeding or manipulating devices specially adapted to grinding machines (feeding, loading or unloading work specially adapted to lapping machines B24B37/345) · CPC title

• B24B9/20

  of plastics · CPC title

• B24B49/00

  Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation (B24B33/06, B24B37/005 take precedence; if applicable to other machine tools, B23Q15/00 - B23Q17/00 take precedence) · CPC title

• B41F15/42 Primary

  comprising squeegees or doctors · CPC title