Device for blocking eyeglass lenses

Patent metadata

Field	Value
Publication number	US-9862087-B2
Application number	US-201113994963-A
Country	US
Kind code	B2
Filing date	Dec 20, 2011
Priority date	Dec 22, 2010
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

A device for blocking eyeglass lenses onto blocks using a bonding mass, by which the eyeglass lens is connected to the block in a form-fit and/or force-closed manner, having several stations, between which the eyeglass lens and/or the block is transported, at least one blocking station, in which the block is connected to the eyeglass lens using the bonding mass, a transport arm having a retaining head arranged thereon for positioning the eyeglass lens in the blocking station, wherein the transport arm is designed as a pivot arm and has at least one pivot axis (S 1 ), by means of which the transport arm and the retaining head can be moved between at least two stations, and at least one conveying arm having a retainer for the block or an eyeglass lens, wherein the conveying arm has a pivot axis (S 2 ), which is arranged parallel or coaxial to the pivot axis (S 1 ) and by which the retainer can be moved between at least two stations.

First claim

What is claimed is:

1. A device for blocking eyeglass lenses onto blocks using a bonding mass, by which the eyeglass lens is connected to the block in one or more of a form-fit and a force-closed manner, comprising:
a) several stations, between which one or more of the eyeglass lens and the block is transported;
b) wherein the several stations include at least one blocking station, in which the block is connected to the eyeglass lens using the bonding mass;
c) a transport arm having a retaining head arranged thereon for positioning the eyeglass lens in at least the blocking station, wherein the transport arm is designed as a pivot arm and has at least one transport arm pivot axis (S 1 ), by which the transport arm and the retaining head can be moved between at least two stations, wherein at least one conveying arm having a retainer for the block or an eyeglass lens is provided, wherein the conveying arm has a conveying arm pivot axis (S 2 ), which is arranged coaxial to the transport arm pivot axis (S 1 ) and by which the retainer can be moved between at least two stations, wherein at least one of the at least one blocking station(s) is stationary, wherein the conveying arm is pivotable around the conveying arm pivot axis (S 2 ) independent of the transport arm pivotability around the transport arm pivot axis (S 1 ).

2. The blocking device according to claim 1 , wherein one or more of a) the transport arm has at least one transport arm translatory axis (T 1 ), by which the transport arm with the retaining head can be moved relative to the blocking station, and b) the retaining head has a retaining head translatory axis (T 2 ), by which the retaining head can be moved relative to the transport arm.

3. The blocking device according to claim 2 , wherein the retainer has a retainer translatory axis (T 3 ) by which the retainer can be moved relative to the conveying arm in a direction parallel to the conveying arm pivot axis (S 2 ), and wherein one station is configured as an orienting station, having an abutment element against which the eyeglass lens can be placed for orienting a relative position between the eyeglass lens and the retaining head.

4. The blocking device according to claim 3 , wherein the orienting station has an orienting station translatory axis (T 4 ), by which the abutment element can be moved relative to the transport arm, wherein the abutment element has two abutment spikes, which can be brought between the retaining head and an eyeglass lens attached to it, wherein one handover unit and one eyeglass lens magazine are provided, wherein the handover unit serves to pick up from the eyeglass lens magazine and hand off to the eyeglass lens magazine and the handover unit has: a) a first pivot axis (S 3 ), by means of which the eyeglass lens can be moved between the eyeglass lens magazine and the orienting station or the transport arm, b) a second pivot axis (S 4 ), by which the eyeglass lens can be brought into an upside down position.

5. The blocking device according to claim 4 , wherein one station is configured as a turning station with an axis of rotation (D 1 ), by which the block with the blocked-on eyeglass lens can be turned about a center axis of the block, wherein one or more of a) at least two or three blocking stations are provided, each of which can be accessed via the transport arm and the conveying arm, and b) one station is configured as a block magazine which can be accessed at least via the conveying arm, and wherein a dispensing unit for bonding compound is provided, having an axis of movement (B 1 ), by which the dispensing unit can be positioned in at least two different positions (P 1 ), (P 2 ), (P 3 ) in the area of the particular blocking station.

6. The blocking device according to claim 1 , wherein the retainer has a retainer translatory axis (T 3 ) by which the retainer can be moved relative to the conveying arm in a direction parallel to the conveying arm pivot axis (S 2 ).

7. The blocking device according to claim 1 , wherein one station is configured as an orienting station, having an abutment element against which the eyeglass lens can be placed for orienting a relative position between the eyeglass lens and the retaining head.

8. The blocking device according to claim 7 , wherein the orienting station has an orienting station translatory axis (T 4 ), by which the abutment element can be moved relative to the transport arm.

9. The blocking device according to claim 7 , wherein the abutment element has two abutment spikes, which can be brought between the retaining head and an eyeglass lens attached to it.

10. The blocking device according to claim 1 , wherein one handover unit and one eyeglass lens magazine are provided, wherein the handover unit serves to pick up from the eyeglass lens magazine and hand off to the eyeglass lens magazine and the handover unit has:
a) a first pivot axis (S 3 ), by means of which the eyeglass lens can be moved between the eyeglass lens magazine and the orienting station or the transport arm,
b) a second pivot axis (S 4 ), by which the eyeglass lens can be brought into an upside down position.

11. The blocking device according to claim 1 , wherein one station is configured as a turning station with an axis of rotation (D 1 ), by which the block with the blocked-on eyeglass lens can be turned about a center axis of the block.

12. The blocking device according to claim 1 , wherein one or more of a) at least two or three blocking stations are provided, each of which can be accessed via the transport arm and the conveying arm, and b) one station is configured as a block magazine which can be accessed at least via the conveying arm.

13. The blocking device according to claim 1 , wherein a dispensing unit for bonding compound is provided, having an axis of movement (B 1 ), by which the dispensing unit can be positioned in at least two different positions (P 1 ), (P 2 ), (P 3 ) in the area of the blocking station.

14. A method for blocking an eyeglass lens on a first block, comprising the steps of:
a) picking a first eyeglass lens up by a transport arm,
b) handing the first eyeglass lens by the transport arm to a first blocking station, wherein the first blocking station is stationary,
c) blocking the first eyeglass lens onto the first block and leaving for a cooldown time in the first blocking station,
d) during the cooldown time, passing a second eyeglass lens to the transport arm by a handover unit, being transported via the transport arm to a second blocking station and setting it down in the second blocking station, wherein the second blocking station is stationary,
e) during this transport process and before the respective eyeglass lens is set down at the respective blocking station, the conveying arm removes a block from a block magazine and sets it down in the corresponding blocking station, and
f) wherein the transport arm is designed as a pivot arm and has at least one transport arm pivot axis (S 1 ) by which the transport arm is moved between at least two stations, wherein the conveying arm has a conveying arm pivot axis (S 2 ) which is arranged coaxially to the transport arm pivot axis (S 1 ) by which a retainer of the conveying arm is moved between at least two stations.

15. The method according to claim 14 , wherein the conveying arm after the cooldown time removes the blocked-on eyeglass lens with a block from the particular blocking station and delivers it to the handover unit or a turning station.

16. The method according to claim 15 , wherein the eyeglass lens is brought to bear against the abutment element by the han

Assignees

• Schneider Gunter
• Buchenauer Helwig
• Börner Ulf
• KRäMER KLAUS
• Schneider Gmbh & Co Kg

Inventors

• Schneider Gunter
• Buchenauer Helwig
• Börner Ulf
• KRäMER KLAUS

Classifications

• B24B13/0031 Primary

  Machines having several working posts; Feeding and manipulating devices · CPC title

• B25H1/0021 Primary

  Stands, supports or guiding devices for positioning portable tools or for securing them to the work (B23B41/00 takes precedence) · CPC title

• B24B13/005

  Blocking means, chucks or the like; Alignment devices · CPC title

• B24B41/005

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

• B29D11/00423

  Plants for the production of simple or compound lenses (B29D11/00259 takes precedence) · CPC title