Table Of Content

JAPAN ≠ EDICT OF GOVERNMENT ± In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. JIS B 6542 (1991) (English): Veneer lathes -- Test and inspection methods The citizens of a nation must honor the laws of the land. Fukuzawa Yukichi UDC 621.941.001.4:674.2.05 JAPANESE INDUSTRIAL S TANDARD Veneer lathes - Test and inspection methods JIS B 6542- 1991 Translated and Published by Japanese Standards Association Printed in Japan 10 S PROTECTED BY COPYRIGHT In the event of any doubt arising, the original Standard in ap2mel::e is to be final authority. PROTECTED BY COPYRIGHT UDC 621.941.001.4:674.2.05 JAPANESE INDUSTRIAL STANDARD J I S Veneer lathes - Test and inspection methods B 6542-1991 This Japanese the structure, nominal sizes and methods for functional tests, tests, accuracy inspections and machining accuracy inspections of the veneer lathes 350 rom or over to 4500 mID or under in length of tool surface and 400 rum or over to 2200 rom or under in swing(l) .. Note (1) The maximum diameter of of being machined. Remarks 1. The applicable standard to this Standard is as given in the following: JIS B 652l-Methods of measurement for noise emitted by wood working machinery 2. In this Standard, the units given in { } are in accordance with conventional units~ and are appended for informative reference .. 2. Structure part of the veneer lathe shall have sufficient rigidity and not adversely affect its machining accuracy. 3. Nominal sizes Nominal sizes of veneer lathes shall be in terms of the length of tool surface (mm) and swing (mm), and shall be in accordance with Tables land 2. PROTECTED BY COPYRIGHT 2 B 6542-1991 Table 1. Lengths of tool fitting Table 2. Swings surfaces Unit: mm Unit: rom Length of tool Tolerances Swing Tolerances fittlll surface 400 :)50 600 500 700 600 BOO 1050 900 1200 1000 1200 1350 1 :350 1500 1650 1850 1800 :2 100 2000 2 ;:100 2200 2 '1·00 700 27S0 2950 .3 050 .3 3.50 4200 4· 300 4450 1500 Remarks: Veneer lathes shall be designated by name and size (length of tool fitting surface x swing). Example: Veneer lathe 1500 x 800 4. Functional test methods Functional tests of veneer lathe shall be carried out in accordance with Table 3. Table 3 .. Functional test No .. Test item Test method 1 Electrical equipment Test the insulation condition once each, before and after running tests. 2 Starting, stopping and Start and stop the spindle several running operations of times at an appropriate speed to test rotations of the left and smoothness and reliability of operation. right spindles 3 Changing operations of Change the speed of the spindles, to speeds of the left and i! test the smoothness of operation and right spindles I reliability of indication of the control device. j PROTECTED BY COPYRIGHT 3 B 6542-1991 Table 3 .. (Continued) No. Test item I Test method 4 Starting, stopping and Draw-out and draw-in the spindle repeatedly llnning operations of to test the smoothness and reliability of drawing-out and-in motions starting and stopping. of the left and right spindles 5 Starting, stopping and run- I Conduct starting, stopping and rapid ning operations of automati9 feeding (forward and backward) at an and rapid feeding of the appropriate speed several times to test 1 knife holder ; smoothness and reliability of operation. : 6 Changing operation of feeds I Change feeds to test smoothness of opera- of the knife holder ! tion and reliability of indication. i I 7 Cutting angle adjusting I Test smoothness of function and accuracy device I of indication. 8 Tool gap adjusting device 1 Test smoothness of function and accuracy i of indication. 9 Marking device I Test smoothness and reliability of I function. i 10 Fitting and detaching of Test reliability and smoothness of fitting i knife and nose bar I and detaching of knife and nose bar. I 11 Mounting and dismounting of Test reliability and smoothness of mounting workpieces and dismounting of workpieces. 12 Safety device i Test reliability of safety function for I worker and protective function for machine. ! 13 Lubricating system Test reliability of functions such as oil tightness, adequate distribution of oil, etc. 14 Oil hydraulic system I Test reliability of functions such as oil- I tightness, pressure adjustment, etc. i i 15 Pneumatic system Test reliability of functions such as airtightness, pressure adjustment, etc. 16 Attached equipment Test reliability of function. Remarks: For veneer lathes without relevant functions, test items corresponding to these in Table 3 shall be omitted. PROTECTED BY COPYRIGHT 4 B 6542-1991 5. Running Test methods 5.1 No load running test Allow the spindle to rotate and continue for 30 to 60 min, measure required electric power and noises after temperatures have been stabilized, record each item in Record form 1 of Table 4 and, at the same time observe abnormal vibrations by the sense of touch. the measurement of noise shall be made in accordance with JIS B 6521. Table 4. Record form 1 Rotational speed Required electric Time of of spindle Temperatures °c power measure- r/mn {rpm} Noise in A No. ment, I----r-M-e-as-u-r-e_-+----r------.------r----+--....,-E-l-ec-t-r-rc...,..----I ~~1:cter- Remarks llOur amnidn ute Marked macetnut ally Gear box ,RtOemOplelrl-,i V curAre nt InkWp ut dB measured I----r---t---r'--l--~-__I ature Remarks: Record the measuring conditions of noise in remarks column. 5.2 Load running test After the tests on respective items specified in Table 5 have been carried out, carry out the of a workpiece, measure required electric power and noises, record each item specified in Record form 2 of Table 6, and, at the same time, observe abnormal vibrations and conditions of cut surface by the sense of touch. PROTECTED BY COPYRIGHT Table 5 .. Load running tests Unit: mID Permissible No. Inspection item Measuring method Illustration of method deviation 1 Displace In ~APPlY a fixed indicator (e.g. ments of hori- Left on the floor) to the spindle left and zontal at the position of 100 mm right plane 'from the sleeve end face, and consider the difference of readings, when a material ~I-n- ---4-L-e-f-t ~ wood has not been mounted and has been , to be i velrt - the measured ). ca plane Right 2 I Variation of a a test indicator being 0 .. 02 in the horizontal tool mounted on the press case where gap bar or both ends of knife the holder to the knife holder or thickness is pressure bar, and consider the 1 or less, maximum value of the differ 0 .. 05 in the ences between at the time of case of the no load and at the time of peel thick ~ under load to be the measured ness being ;....j value. over I up to tTl (1 5 including. ~ V to .-< o(1 I;;!.::J "'0 C'J\ ~ L.n ~ o N U1 I ~ I-' \.0 \.0 I-'