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No.000052 Workpiece Confirmation Process
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Workpiece confirmation process with photoelectric sensor.
Relevant category
Conveyor rollers
| Product name | Conveyer Roller Shafts - Hollow |
|---|---|
| Part number | HROJS38-413 |
| Features | Set of Conveyor Rollers and Economical Hollow Tube Rollers. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Cost reduction by utilizing commercially available components.
Available sizes
■Conveyor rollers (Set of rollers and shafts)
| Material | Surface treatment | Bearing | |||
|---|---|---|---|---|---|
| Roller | Shaft | Pin | Roller・Shaft・Pin | ||
| Core material | Wheel | ||||
| Carbon Steel | Steel | Steel | Steel | Trivalent chromate | Pressed bearing |
■Dimensions
| Roller length | Name No. | Roller O.D. | Shaft bore DIA. | Shaft length | Shaft(With pin) | |
|---|---|---|---|---|---|---|
| Nominal DIA. | Actual DIA. | |||||
| 113 | 19 | φ19.1 | φ6.2 | Roller length+22 | φ6 | φ5.9 |
| 163 | 22 | φ22.2 | ||||
| 213 | 28 | φ28.6 | φ8.2 | Roller length+22 | φ8 | φ7.85 |
| 263 | 38 | φ38.1 | φ12.2 | Roller length+27 | φ12 | φ11.8 |
| 313 | 42 | φ42.7 | ||||
| 413 | 50 | φ50.8 | ||||
| 513 | 57 | φ57.2 | ||||
*Lengths 163, 263 for Nominal No. 22 are not available.
Performance info.
■Conveyor roller strength
(All forces in Newtons)
| Roller length(mm) | |||||||
|---|---|---|---|---|---|---|---|
| Name No. | 113 | 163 | 213 | 263 | 313 | 413 | 513 |
| 19 | 431 | 318 | 205 | 436 | 343 | 294 | 206 |
| 22 | 431 | ? | 205 | ? | 343 | 294 | 206 |
| 28 | 490 | 490 | 490 | 450 | 687 | 588 | 412 |
| 38 | 1342 | 1342 | 1342 | 1132 | 922 | 785 | 588 |
| 42 | 1667 | 1628 | 1589 | 1310 | 1030 | 883 | 745 |
| 50 | 1716 | 1628 | 1648 | 1584 | 1520 | 1442 | 1147 |
| 57 | 2354 | 2206 | 2059 | 1912 | 1765 | 1471 | 1157 |
Strut Clamps- For Mounting of Photoelectric Sensor
| Product name | Strut Clamps- For Mounting Photoelectric Sensors |
|---|---|
| Part number | KSTW10 |
| Features | Direct mounting for General Photoelectric Sensors. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Utility mount that will support the sensor in use and is easy to adjust.
Available sizes
■Strut Clamps-For mounting Photoelectric Sensor.
| Sensor mounting | Material | Surface treatment |
|---|---|---|
| Through holes(φ3.5) Tapped hole(M2.6) (Pitch: 25.4) | 1018 Carbon Steel | Black oxide |
| Electroless nickel plating | ||
| Aluminum alloy | Black anodize | |
| Clear anodize | ||
| 304 Stainless Steel | ? |
| Shaft bore DIA. | Strut clamp external dims. | ||
|---|---|---|---|
| Height | Width | Depth | |
| φ10 | 31 | 22 | 13 |
| φ12 | 25 | 16 | |
| φ15 | 28 | 19 | |
Accuracy Info
■Accuracy of strut clamp for photo sensor mounting
Shaft bore DIA. tolerance: H7
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CAD Download (Unit Assembly)
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Assembly data shows the assembly drawings in the concept design phase. The sole purpose of the data is to explain the structure and functionality of the assembly and is not considered nor to be used as a final design.
You will need to edit the Data so that it meets your specific design conditions. -
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It is configured so that each sub-assembly unit can be used as it is or edited. - The Data for fabricated parts is based on easy-to-edit dimensions and shapes in sketches and histories.
- The Data including the third-part components are made by the Company.
* The part in the frame is a sub-assembly unit.
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- * Unit assembly Data consists of some sub-assemblies.
It is configured so that each sub-assembly unit can be used as it is or edited.
Application Overview
Purpose
- Detects passing components or assemblies on a conveyor.
Target workpiece
- Sheet metal case.
- Pallet
- Workpiece size: 270 x 305 x 50
Design Specifications
Operating Conditions or Design Requirements
- Conveyor guide width: 345
- External dims.: W475 x D1350 x H159
Required Performance
- Workpiece・Case weight: 8kg
Selection Criteria for Main Components
- Motor roller
- The integrated motor saves space by not requiring an external motor.
Design Evaluation
Verification of main components
- Verify that the motorized roller can move the material on the conveyor.
- Motor roller selection
- ① Required tangential force (Roller transfer ability) confirmation
Conveyed object weight M = 8kg
When rolling friction coefficient μ = 0.04,
Required tangential force F[N] = 9.8 × M × μ = 9.8 × 8 × 0.04 = 3.14N - ② Temporary selection of model number
MOR38-400-10 - ③ Determining required number of rollers
When motor roller's starting tangential force FK = 37.3N,
Conveyance capacity FH[N] = FK × 0.9 = 37.3 × 0.9 = 33.57N
Required number of rollers
n = F / FH = 3.14 / 33.57 = 0.094pc. (* 1pc. is capable of conveyance)
● For safety reasons, be sure that load always rides on two rollers. - ④ Determining roller length
From Load: Length (L = 400) x Width (W = 320), roller length 400 (80mm margin) is selected.
- ① Required tangential force (Roller transfer ability) confirmation
Other Design Consideration
- One roller is adequate as shown in the calculations above, but considering that if there are any changes in the system with the load on the rollers, rollers come out of alignment, variation in the motor speed, and etc... minimum of two rollers need to engage each assembly tray component.
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