LASER MACHINE WITH TWO MARKING TABLE AND METHOD OF LOADING

PRODUCTS TO LASER MACHINE

Making patterns and marking with laser beam over confection or similar products with two independently working tabled machine and the method of marking ,

This invention is about, making patterns and marking with laser beam over confection or similar products with two independently working tabled machine and the method of marking ,

In some conventional laser machines, the table where the products to be marked are placed is a fixed table. It does not move. Operator locates the product over the table and marks it. After that operator takes it back and locate the new product. The machines which are using this fixed table method have very low efficiency in production. During operator is locating the product, laser marking is stopped and waits for the operator. On the other hand, the operator's health is under risk since he is working over the laser active zone.

In other conventional laser machines, table is moving to right and left. These machines have three zones. Right and left zone are the product locating zones. The middle zone is the laser marking zone. These machines' efficiency is higher than the fixed tabled machines but the size of the machine is big. The operator has to walk to the right or to the left every time to locate the products. This makes operator to get tired.

In other conventional laser machines, the table is designed like a moving band conveyor. The products are located over the band and the products to be marked are moved over this conveyor system. In these systems, the conveyor band moves very slowly so the efficiency is low.

Additionally after marking process, the products folding shape is changed. If the product will be marked again, the operator has to fold the product again. This causes additional labor and time loss.

In all conventional laser machines, the laser tube(s) is/are located outside area of the machines. These causes to increase the size of the machines. So the machines will cover big area in the factories and it is a big disadvantage for the factories.

In the new invention, the laser machine has two independently working tables. These tables are located vertically. There is only 20cm distance between them. When the upper table moves to marking area, the lower tables moves to the locating area at the same time. The operator never walks to different place to locate the products. Operator locates the products very easily. Both tables are big enough to locate 4 - 5 jeans at the same time. Having big area over the table also increases the efficiency.

In the new invention, the laser tube(s) is/are located inside the marking zone. This design makes the machine more compact in dimensions. The machine covers less place than other laser machines in the factories. .

Figure 1 the side view of laser machine

Figure 2 - the higher marking table's top view

Figure 3 the side view of laser machine

Figure 4 the lower marking table's top view

Figure 5 - the lower marking table's perspective from below

Figure 6 - the lower marking table's side view

Figure 7 - the lower marking table's perspective from below

Figure 8 - the top view of laser machine

All parts are numbered in the figures. The numbered parts list is given below;

1. Two -axis laser pointer

2. 3 axis laser scanner

3. Laser source

4. Higher table

5. Lower table

6. Higher linear rail

7. Lower linear rail

8. Rail system

9. Higher table helis gear shaft

10. Higher table servo motor

11. Lower table chassis

12. Lower table movement arms

13. Lower table movement arms'power transfer shaft

14. Helis gear

15. Helis servo gear

16. Lower table up and down movement servo

17. Lower table helis gear shaft

18. Lower table servo motor

19. Lower table movement arms connection shaft

20. Marking zone

21. Product locating zone

22. Marking level

23. Product locating level

24. Electronical cabinet

25. Linear movement mechanism

26. Linear rail ™

28. Servo motor

29. Screwed shaft

30. Trigger belt

31. Power box

32. Two axis laser pointer

33. Mirror

34. Mirror

35. Laser source connection table

This machine consists of marking zone, laser source (3), mirrors which are directing the laser beam (33, 34), power box which is used to change the laser beam diameter (32) and the table which is used to locate the products on to be marked (35). This machine's marking zone is not bigger than the marking area (20). When the laser beam comes out from the laser source (3) first it turns right 90° with the mirror (33) and then it turns again 90° with another mirror (34) and get inside the power box (31). 3 ^rd axis(2) and two axis laser pointer (32) are located near the laser source. So efficient design is done to save from the space. In conventional laser machines, these components are located in linear position. This makes the a long marking unit design. By using mirrors (33, 34) the new machine's marking unit length is shortened and fit inside the marking area. In this new marking system, 3 ^rd axis scanner (2) is located in the middle of the marking zone (20). All components of the marking unit (3, 33, 34, 31, 2, 32) are fixed to laser source connection table (35). Linear movement mechanisms (25) have sufficient bearings (27) to move easily. Linear movement mechanisms are moving up and down over the rail by the help of bearings (27). This movement is done by servo motor (28) and the screwed shaft (29). When servo motor turns (28), it turns the trigger belt (30). Trigger belt moves the screwed shaft (29). The linear movement mechanisms are moved over the rails up and down because they are connected to the screwed shaft. With this method, the marking unit is moved over marking zone (20) up and down. The operator can easily set the height of the marking process. The all electronical parts of the laser machine are located inside the electronical cabinet (24). With the help of additional placed two axis laser pointer (32), if the operator does not want to use the moving tables (4, 5), he can send them to the marking zone (20) and use the machine like a fixed table laser machine. Two axis pointer (32) helps operator where to locate the new product during laser marking the other product. In this new laser machine locating zone contains two moving tables (4, 5), helis gear shafts (9, 17), linear movement mechanisms (8), movement arms connection shafts (19), lower table chassis (11), servo motors (16, 18, 10) and gears (14, 15). mechanisms (8). The higher table moves from marking zone (20) to locating zone (21) with the help of servo motors (10). Over the locating zone (21) two axis laser pointer (1) is located. This pointer (1) shows where the new products will be located. Operator locates the product over the table (4) and sends it to the marking zone (20). When it reaches the marking zone (20), marking process starts. During the higher table is moving from the locating zone to the marking zone, the lower table moves from the marking zone to the locating zone. The lower (4) and the higher (5) tables are always moved between marking zone and located zone. Both tables are coming in front of the opetor and the operator locates the new product without walking. Lower table (5) is below the marking level (22) and locating zone (23). This is a big problem for the perfect marking process. During laser marking, 3 axis laser must have the same distance to moving tables (4, 5). But these two moving tables (4, 5) are not moving in the same level. Otherwise there will be marking power differences between the products. In the new laser machine, this level level (22, 23) problem is solved by moving up and down the lower table (5). This movement is also needed when there is products over the lower table. Those prodcuts may touch the higher table and their locations can be changed. The movement arms (12) connected to lower table and lower table chassis. The arms are connected through Lower table movement arms'power transfer shaft. These arms tranfer the movement with the help of servo motor (16), gears (15, 16) and the gears. Figure 6 and Figure 7. The lower table (5) moves to up from the marking zone (Figure 6) and the lower table reaches to the marking level (22). In this point, both higher and lower tables are in the same level (22, 23).

When the lower table moves to the locating zone, first the arms (12) lifts down the lower table (5). When the lower table (5) is in the lower level, it moves to the locating zone with the help of lower table chassis (11), linear movement mechanisms(8) and linear rails (7). This movement is done by servo motor (18). Servo motor (18) moves it over helis gear rail (17). When lower tables moves to locating zone (21), the higher table (4) moves witht the help of servo motor (10) by going over rails (6) to the marking zone. When the lower table reached to the locating zone, the movement arms lifts us the lower table (5) to the marking level. In this position both lower table (5) and the higher table (4) are in the same level. So the operator can easily locate products.