Fig 5b – Cross Section of C2040VRP-C2080VRP frame with steel rail
Figure 7 – Install a roller as shown for a straight line transfer
viii – Maximum conveyor length Double Plus ® chain operates well on conveyors with lengths not exceed- ing 50 feet, make several shorter conveyors in line. If you require one continuous system longer than 50 feet, consult Tsubaki Engineering. ix – For Double Plus ® Chain with Snap Covers When using this arrangement, as shown in Fig. 11, be aware that the sprocket cannot engage the chain from the top surface of the snap covers. When bending the chain toward the snap cover side, do not bend beyond the R dimension of the plastic return guide. Snap covers and installation are shown in Figs 12 and 13.
Table 9e - Steel Rail Assembly Dimensions Rail No. A B C D
E
F
C2040VRP-R4LS
157.5
1.18
19.09
19.09
2.36
1.18
C2050VRP-R4LS
157.5
1.18
19.09
19.09
2.36
1.18
C2060VRP-R4LS
157.5
1.18
19.09
19.09
2.36
1.18
C2050VRP-R3LS
118.1
0.59
18.9
19.09
2.36
1.18
C2080VRP-R3LS
118.1
0.59
18.9
19.09
2.36
1.18
(3) – Important points when handling steel guide rails – When cutting the guide rail with steel rail
Figure 11 – Take-up arrangement for limited space for Double Plus ® with snap covers.
Table 9d - Aluminum Frame with Steel Rail Steel Rail (Part No. 3)
1 – Cut anywhere other than the central portion or screwed portions of the conveyor. 2 – Insert lock screws into the steel rail and inner rail along with the inner rail and main rail at 0.6 - 1.2 inches from the cut end. 3 – Machine all parts individually. 4 – Completely remove all burrs before reassembly.
Installation screws for steel rail (Part No. 4) phillips pan head machine screws
Installation screws for steel rail (Part No. 5) phillips flat head machine screws
Dim. (Plate Thickness x width) Inches
“A” Dim. Inches
Rail No.
C2030VRP-R3LS
.12 X .51
0.187
M3 X 7
C2040VRP-R4LS
.12 X .51
0.315
M4 X 5
M4 X 6
vii – Take-up The amount of take-up = (L. 0.02) + marginal length (0.02 = allowable chain wear elongation 2%).
Note - Use screws according to Table 9d when reassembling the conveyor.
C2050VRP-R4LS
.12 X .51
0.315
M4 X 6
M4 X 6
C2050VRP-R3HS
.12 X .51
0.315
M4 X 6
M4 X 6
When connecting the rail After connecting the rail, put small chamfers on the mating faces of the steel rail in both directions where steps occur. These prevent the chain rollers from getting caught. vi – Transferring objects between conveyors. To convey pallets in a stable condition at the transfer portion of the conveyor, install a roller between the two conveyors or the shafts of the sprockets (fig. 7). Be sure that the distance (l) from the ends of the rail to the roller that supports the pallets is less than times the pallet length in the conveying direction. 1 2.5
Figure 12 – Snap covers for outer and inner links
C2060VRP-R4LS
.12 X .51
0.315
M4 X 6
M4 X 6
Allow for some sagging (up to 10% of the span) in the chain on the bottom of the driver sprocket. Adjust the take-up so that the slack does not exceed the values in Table 9f (see Fig. 8). The total arc of contact between the chain and the sprocket should be more than 130°. If the take-up cannot be set up as shown in Fig. 9 due to space limitations, refer to Fig. 10.
C2080VRP-R3LS
.24 X .63
0.413
M5 X 8
M6 X 10
(2) – Assembly Drawing When joining rail sections to form a longer conveyor, please refer to Fig 6.
Figure 6 – Assembly Drawing
Figure 8 – Slack Tolerance
Figure 13 – Proper installation of snap covers.
Table 9f - Chain Slack for Double Plus ® Chain Size Normal Slack Inches
Maximum Slack Inches
C2030
0.1
2.95
Figure 9 – Take-up Arrangement
C2040
1.38
4.13
C2050
1.57
4.72
C2060
1.97
5.9
C2080
2.56
7.48
1 – The steel rail is cut at an angle of 45° at the center portion of the main rail. 2 – The installation spacing for C2030VRP-R3LS steel rail is the same as that for C2050VRP-R3HS and C2080VRP-R3LS. 3 – Dimensions in parenthesis refer to C2050 – C2080-R3LS
Figure 10 – Take-up Arrangement for limited space.
267
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