Feed device for crucible

Patent metadata

Field	Value
Publication number	US-10676288-B2
Application number	US-201715750464-A
Country	US
Kind code	B2
Filing date	Aug 9, 2017
Priority date	Oct 20, 2016
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

This application discloses a feeding device for a crucible, belonging to the field of display technology. The feeding device includes: a base, a robot arm and a bottle holder. The base is movably connected to one end of the robot arm, the one end of the robot arm can move linearly on the base, a motion trajectory of the robot arm is parallel to a lengthwise direction of the crucible. The bottle holder is disposed at the other end of the robot arm and the bottle holder is rotatable at the other end. This application can protect operator's health, improve production efficiency and reduce production costs.

First claim

The invention claimed is:

1. A feeding device for a crucible, the feeding device comprising: a base; a robot arm; and a bottle holder,
wherein the base is movably connected to a first end of the robot arm adjacent to the base, the first end of the robot arm is configured to only move linearly on the base, a direction of the linear movement of the first end of the robot arm on the base is parallel to a lengthwise direction of the crucible and parallel to the ground,
wherein the bottle holder is disposed at a second end of the robot arm away from the base and the bottle holder is configured to be rotatable at the second end of the robot arm,
wherein said base is provided with a groove-shaped translational track whose lengthwise direction is parallel to the lengthwise direction of said crucible and the direction of the linear movement, the first end of the robot arm is configured to be slidable in the translational track, and
wherein the feeding device further comprises a control module disposed on one of the base, the robot arm and the bottle holder for controlling an angular velocity V θ of rotation of the bottle holder during the linear movement of the first end of the robot arm, a magnitude of the angular velocity V θ s satisfies a formula of:
V θ =dθ/dt=V g m/ρL·dθ/dv 2  (1),

in the formula (1), θ is a tilt angle of the bottle, t is time, Vg is a translation speed of the first end of the robot arm, m is a mass of a material in the bottle, ρ is a density of the material in the bottle, L is a length of the crucible, dθ/dv2 is a relationship between a volume of the material poured out from the bottle and the tilt angle of the bottle, which is measured in advance.

2. The feeding device according to claim 1 , wherein said robot arm includes an upper robot arm, a lower robot arm, and a first rotary member;
one end of the lower robot arm is movably connected to the base, and the other end of the lower robot arm is hinged with one end of the upper robot arm via the first rotary member; and the bottle holder is arranged at the other end of the upper robot arm.

3. The feeding device according to claim 2 , further comprising a slide member and a second rotary member,
the slide member is movably connected with the base;
one end of the lower robot arm is hinged with the slide member by the second rotary member.

4. The feeding device according to claim 3 , further comprising: a third rotary member, the bottle holder is provided at thereof the upper robot arm by the third rotary member.

5. The feeding device according to claim 3 , further comprising a first vibration unit,
wherein the first vibration unit is fixed at the second robot arm, and the bottle holder is disposed on the first vibration unit.

6. The feeding device according to claim 2 , further comprising: a third rotary member, the bottle holder is provided at the second end of the upper robot arm by the third rotary member.

7. The feeding device according to claim 2 , further comprising a first vibration unit,
wherein the first vibration unit is fixed at the second of the robot arm, and the bottle holder is disposed on the first vibration unit.

8. The feeding device according to claim 1 , further comprising a first vibration unit,
wherein the first vibration unit is fixed at the second of the robot arm, and the bottle holder is disposed on the first vibration unit.

9. The feeding device according to claim 8 , further comprising a weighing part on which the crucible is placed.

10. The feeding device according to claim 9 , wherein the weighing part is provided with a weight display.

11. The feeding device according to claim 9 , wherein said weighing part is an electronic scale.

12. The feeding device according to claim 9 , further comprising a second vibration unit provided in the weighing part and under the crucible.

13. The feeding device according to claim 9 , wherein the weighing part is connected to the base.

14. The feeding device according to claim 13 , further comprising a fixing mechanism provided on the weighing part for fixing the crucible to the weighing part.

15. The feeding device according to claim 1 , wherein the crucible is a linear crucible.

16. A manufacturing apparatus of a display substrate comprising the feeding device according to claim 1 .

Assignees

• Boe Technology Group Co Ltd
• Chengdu Boe Optoelect Tech Co

Inventors

• Luo Chang
• Wu Haidong
• Zheng Kening

Classifications

• C23C14/246

  Replenishment of source material · CPC title

• B23Q7/1426

  with work holders not rigidly fixed to the transport devices (B23Q7/005, B23Q7/035 take precedence) · CPC title

• B65G47/902 Primary

  provided with drive systems incorporating rotary and rectilinear movements · CPC title

• B65G65/23

  Devices for tilting and emptying of containers · CPC title

• C30B15/10

  Crucibles or containers for supporting the melt · CPC title