Lift device and lift system for substrate loading platform

{
  "publication_number": "US9594269B2",
  "country": "US",
  "kind": "B2",
  "title": "Lift device and lift system for substrate loading platform",
  "abstract": "A lift device and a lift system are provided, which comprises: a carrying mechanism including a guiding hole; a lift pin passing through inside the guiding hole; a carrying base, which is connected to the lift pin, wherein when the carrying base is moved upward, the lift pin is moved upward and inside the guiding hole; and a magnetic control device, which is used to send a magnetic control signal, so as to move the lift pin downward. By the lift pin being moved downward and magnetically sucked, a bad process problem and a break risk can be avoided.",
  "claims": [
    "1. A lift device for a substrate loading platform, comprising: a carrying mechanism including a guiding hole; a lift pin passing through inside the guiding hole; a carrying base, wherein the carrying base including a fixing nut, and a lower end of the lift pin is formed as a bolt; and the carrying base is connected and fixed to the lower end of the lift pin, wherein when the carrying base is moved upward under an external force, the lift pin is moved upward and inside the guiding hole; and a magnetic control device connected to the carrying base through a magnetic force line, wherein the magnetic control device is used to send a magnetic control signal to the carrying base through the magnetic force line, so as to move the lift pin downward and inside the guiding hole under the control of the magnetic control signal; wherein the carrying mechanism further includes a support element, which is arranged on a periphery of the guiding hole, wherein the support element is used to fix the carrying mechanism below the substrate loading platform, and the substrate loading platform is used to support a glass substrate.",
    "2. The lift device according to claim 1, wherein the fixing nut has a position element which is arranged on a periphery of the fixing nut to limit a maximum ascending movement distance of the lift pin.",
    "3. The lift device according to claim 1, wherein the materials of the carrying base, the fixing nut, and the position element are all metals.",
    "4. A lift device for a substrate loading platform, comprising: a carrying mechanism including a guiding hole; a lift pin passing through inside the guiding hole; a carrying base, wherein the caring base includes a fixing nut, and a lower end of the lift pin is formed as a bolt; and the carrying base is connected and fixed to the lower end of the lift pin, wherein when the carrying base is moved upward under an external force, the lift pin is moved upward and inside the guiding hole; and a magnetic control device connected to the carrying base through a magnetic force line, wherein the magnetic control device is used to send a magnetic control signal to the carrying base through the magnetic force line, so as to move the lift pin downward and inside the guiding hole under the control of the magnetic control signal.",
    "5. The lift device according to claim 4, wherein the carrying mechanism further includes a support element, which is arranged on a periphery of the guiding hole, wherein the support element is used to fix the carrying mechanism below the substrate loading platform, and the substrate loading platform is used to support a glass substrate.",
    "6. The lift device according to claim 4, wherein the fixing nut has a position element, which is arranged on a periphery of the fixing nut to limit a maximum ascending movement distance of the lift pin.",
    "7. The lift device according to claim 4, wherein the materials of the carrying base, the fixing nut, and the position element are all metals.",
    "8. A lift system for a substrate loading platform, comprising: the substrate loading platform and at least one lift device; wherein the substrate loading platform is used to support a glass substrate; the lift device is fixed below the substrate loading platform; and wherein the lift device comprises: a carrying mechanism including a guiding hole; a lift pin passing through inside the guiding hole; a carrying base, wherein the carrying base includes a fixing nut, and a lower end of the lift pin is formed as a bolt; and the carrying base is connected and fixed to the lower end of the lift pin, wherein when the carrying base is moved upward under an external force, the lift pin is moved upward and inside the guiding hole; and a magnetic control device connected to the carrying base through a magnetic force line, wherein the magnetic control device is used to send a magnetic control signal to the carrying base through the magnetic force line, so as to move the lift pin downward and inside the guiding hole under the control of the magnetic control signal.",
    "9. The lift system according to claim 8, wherein the carrying mechanism further includes a support element, which is arranged on a periphery of the guiding hole, wherein the support element is used to fix the carrying mechanism below the substrate loading platform, and the substrate loading platform is used to support a glass substrate.",
    "10. The lift system according to claim 8, wherein the fixing nut has a position element which is arranged on a periphery of the fixing nut to limit a maximum ascending movement distance of the lift pin.",
    "11. The lift system according to claim 8, wherein the materials of the carrying base, the fixing nut, and the position element are all metals."
  ],
  "description_excerpt": "The present invention relates to a technological field of manufacturing liquid crystal display panels, and more particularly to a lift device and a lift system for a substrate loading platform.\n\nIn the TFT-LCD (Thin Film Transistor-Liquid Crystal Display) manufacturing industry, with the size of the glass substrates becoming larger, the requirements for the effects of a film formation in the panel manufacturing process have increased.\n\nMeanwhile, in a production line of an automatic integral equipment, with the marketing requirements of panels becoming larger and the material of the glass substrates becoming thinner, the amount of bending of the glass substrates in the manufacturing equipment has increased, wherein the amount of bending is a droop degree of the glass substrates when it is in the manufacturing equipment. When in a photo process (which comprises a photoresist coater unit, a soft bake unit, and a hard bake unit), a glass substrate has to be supported by lift pins, and each of the lift pins ascends and descends in a guiding hole of a glass substrate carrying mechanism, so as to evenly coat the photoresist on the glass substrate, and then the photoresist is baked and dried.\n\nHowever, when in operation, it has been found that because the manufacturing process is long-term, the lift pins are slightly bent after supporting quite a lot of weight.",
  "cpc": [
    "G02F 1/1303",
    "B25J 15/0014"
  ],
  "ipc": [
    "B25J 15/00",
    "G02F 1/13"
  ],
  "assignees": [
    "Shenzhen China Star Optoelectronics Technology Co Ltd"
  ],
  "inventors": [
    "Jiang Wang",
    "Pei Lin",
    "Yan Ze Li",
    "Kailang Liu",
    "Yipeng Ding",
    "Jinghua Chen"
  ],
  "filing_date": "2014-09-29",
  "publication_date": "2017-03-14",
  "grant_date": "2017-03-14",
  "priority_date": "2014-09-23",
  "application_number": "US-201414408848-A",
  "family_id": "52226566",
  "cited_by_count": 4,
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}