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CL-79
User Manual
37 pgs590.27 Kb0

Conair CL-79 User Manual

CONAIR
MNL-00102
WARNING - Reliance on this Manual Could Result in Severe Bodily Injury or Death!
MANUAL
CL-79
05-15-96 79 1
CONAIR
Contents
1. Introduction.....................................................................................................3
2. Technical specifications ............................................................................ 4
2.1 Dimensions ......................................................................................................... 4
2.2 Data ....................................................................................................................4
3. Functional description ............................................................................ 5-6
3.1 Overview.............................................................................................................5
3.2 Safety system..................................................................................................... 6
4. Safety regulations ...................................................................................... 7
4.1 Overview ............................................................................................................. 7
4.2 Sound level ......................................................................................................... 7
5. Installation ................................................................................................ 8-9
5.1 Pre-start checks .................................................................................................. 8
5.2 Opening and closing the hopper and screenbox ................................................ 8
5.3 Electrical connection........................................................................................... 9
6. Operation and daily maintenance..........................................................10-11
6.1 Starting and stopping........................................................................................ 10
6.2 Inspection ......................................................................................................... 10
6.3 Cleaning............................................................................................................ 11
6.4 Trouble-shooting............................................................................................... 11
7. Servicing ................................................................................................. 12-17
7.1 Changing the knives ....................................................................................12-13
7.2 Sharpening the knives .................................................................................14-15
7.3 Inspecting and adjusting the belts .................................................................... 16
7.4 Lubrication ........................................................................................................ 1 6
7.5 Assembling/disassembling the rotor pulley.......................................................17
8. Spare parts list .................................................................................... 18-26
8.1 Overview........................................................................................................... 18
8.2 Ordering spare parts......................................................................................... 18
8.1.1 79, Cutter housing, all models.............................................................................. 19
8.1.1 79, Cutter housing,all models .......................................................................... 20-21
8.1.2 79, table ................................................................................................................ 22
8.1.2 79, diagram ........................................................................................................... 22
8.1.3 79, table ................................................................................................................ 23
8.1.3 79,diagram ............................................................................................................ 23
8.1.4 79, Hopper ............................................................................................................ 24
8.1.5 79, Blower F3 with cyclone AX-5.......................................................................... 25
8.1.6 Pause/pulse relay when emptying with air veyor ................................................. 26
9. Electrical scheme......................................................................................... 27
10. Layout .................................................................................................... 28-31
10.1 Dimensions ..................................................................................................28-31
11. Options .................................................................................................... 32-35
11.1 Overview ........................................................................................................... 32
11.1.1 79, all models: Third fixed knife, disassembling/assembling ............................. 33
11.1.2 79, all models: Third fixed knife, sharpening...................................................... 34
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1. Introduction
This manual is for CONAIR MAR TIN's 79 series granulators. The abbreviations mean:
-B = Band conveyor -U = Suction blower
-L = Low level -V = Ejector (Air V eyor).
The manual should be studied carefully before installing and using the equipment, in order to prevent personal injury and damage to the machinery .
Always take great care when the knives are within reach, since they are very sharp and can cause personal injury.
CONAIR MAR TIN granulators are built for granulation of injection moulded, blow moulded or extruded plastic waste where the granulator’s size and performance corresponds to the type of waste. For any other products or materials, approval must be obtained from the dealer or head-office in order for the conditions of the guarantee to remain valid.
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The different types of granulator are designed so that maintenance and cleaning can be carried out quickly and simply , both during routine maintenance as well as when changing colour or material.
All servicing work should be carried out by a person with technical training or corresponding professional experience. The manual contains instructions for both handling and servicing the granulator . Chapter 7, which contains servicing instructions, is intended for service engineers. Other chapters contain instructions for the daily operator .
Delivered with the granulator are a manual, tool kit and touch-up paint. Any modifications, changes, or rebuilding of the granulator must be approved
by CONAIR MAR TIN in order to avoid personal injury and damage to machinery and to ensure that the documentation remains correct.
If you have any questions, please contact your local dealer or our head-office.
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2. Technical specifications
2.1 Dimensions
See chapter 10, Layout.
2.2 Data
Serial Number
Motor power......................................................................
Capacity ......................................................................
V-belts ......................................................................
Voltage ......................................................................
Blower type (optional) .......................................................
Rotating knives .................................................................
Fixed knives ......................................................................
Screen ......................................................................
Weight:.............................................................................. -L= 185 kg
.................................................................................. -LB = 220 kg
.................................................................................. -LBU = 250 kg
.................................................................................. -LBV= 240 kg
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3. Functional description
3.1 Overview
79 granulators are designed for grinding different types of plastic waste.
79
79
C
B
A
E
D
A
D
B
C
E
The granulator is controlled from an electrical cabinet with a start/stop function and an emergency stop button.
The material is fed into the hopper (A) and falls down to the rotor. The rotor’s knives (B) grind the material against the fixed knives (C) in the cutter housing. Both the fixed and rotating knives can be changed or re-sharpened when necessary . The sharpening is carried out in a special fixture outside of the granulator .
Under the rotor is a screen (D) through which the granulate passes before it comes down into the granule bin. The screen is available with various hole sizes depending on the required degree of coarseness of the granulate.
The granulated material is then collected in the granule bin (E). The standard -L model is fitted with a suction pipe. The -LBU is fitted with a suction blower which sucks the granulate out of the granule bin. The -LBV is fitted with an ejector (air veyor).
The granule bin, screen and screen box are designed to be removed so that the rotor can easily be cleaned. The hopper is constructed so that it can be opened up to allow improved access for cleaning and maintenance.
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3.2 Safety system
Since there are rotating knives inside the granulator, there is a built-in safety system to prevent personal injury .
Emergency stop: The equipment is fitted with an emergency stop switch on the electrical cabinet. The emergency stop is activated by pushing the button. It is reset by turning the button in the direction of the arrow (anti-clockwise).
Safety switches: The safety system includes 2 safety switches. The switches are located as follows:
• 1 by the hopper
• 1 by the screenbox The system is designed so that you have to unscrew the break screw by the
screenbox to be able to open it. The break screw actuates the safety switch, which cuts off the power so that the rotor stops before the screenbox can be opened.
The hopper must be lowered and locked before the granulator can be operated. The safety switch has been installed so that it is not possible to start the granulator when the hopper is open.
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4. Safety regulations
4.1 Overview
The granulator is equipped with safety switches to prevent the front door and the hopper from being opened during operation.
The following safety measures should always be observed when handling the granulator:
• Always switch off the power supply using the main circuit-breaker (on top of the electrical cabinet) before opening the granulator.
• Never put any part of your body into any openings on the granulator unless the main circuit-breaker is in the "OFF" (=0) position.
• Always be careful when the knives are in reach since they are very sharp. When the rotor has to be rotated manually, this must be done with the greatest care!
• Be careful when the hopper and screenbox are opened and closed so that no part of your body gets caught.
• The granulator cannot be started until the doors and the hopper are locked.
4.2 Sound level
• Equivalent continuous A-weighted acoustic pressure level 79 = 83.6 dBA Value measured 1 m from the surface of the machine and 1.6 m above the
surface of the floor during grinding of 5 litres of PE bottles (polyethylene).
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CONAIR
5. Installation
All instructions must be carried out in the order described, to prevent personal injury or damage to machinery .
Always take great care when handling the knives since they ar e very sharp and can cause personal injury.
The granulator should be connected to the mains supply by an authorised electrician.
5.1 Pre-start checks
• Before the granulator is installed, the rust preventive should be carefully cleaned from the parts which are not painted or rustproof.
5.2 Opening and closing the hopper and screenbox
Screenbox:
1. Unscrew the star knob (A) and pull out the granule bin (B).
2. Unscrew the breakscrew (C) until the door's stop plate is released. A safety switch is then activated, which cuts off the current to prevent the machine from being started when the screenbox is open.
3. Loosen the nuts (D).
4. Raise the link screws (E).
5. Lower the screenbox and lift out the screen.
NOTE: When mounting the screenbox the link
screws' nuts (D) must be tightened quite hard to avoid only one of the link screws taking the whole load. Tighten them quite hard so that the break screw turns easily.
Hopper:
C
B
A
1. Unscrew the break screw (F) on the right side of the hopper.
2. Loosen the nuts (G).
3. Raise the hopper (I).
F
I
G
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5.3 Electrical connection
The granulator should be connected up by an authorised electrician.
• Connect the granulator to the mains supply. See Electrical scheme, chapter 9, connecting (Q1).
Check the granulator motor’s rotation direction as follows:
• Set the main circuit-breaker on the control box to position (1) = “On”.
• Check that the emergency stop switch is not activated. It can be reset by turning the knob in the direction of the arrow (anti-clockwise).
• Check that the break screws to the screenbox's and hopper's safety switches are completely tightened.
• Press in the “START” push-button.
• Check that the granulator motor’s rotation direction is consistent with the arrow on the hood.
If a blower is connected, check that its rotation direction is consistent with the arrow on the blower hood.
If the rotation direction is not correct:
• Change the incoming phases.
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6. Operation and daily maintenance
6.1 Starting and stopping
The start and stop functions are controlled by a change-over button on the electrical cabinet.
NOTE: The granulator should not be stopped until it has finished grinding all the material in the hopper and cutter housing. Any remaining material can slow down the rotor when it is re-started which can overload the motor and trigger the overload protector. (See 6.4)
6.2 Inspection
There should not be any material in the granulator when the inspection is to be carried out.
6.2.1 Daily inspection
• Flaps in the hopper. Check that the flaps are not damaged. Damaged parts
should be replaced immediately to prevent bits of the flaps from falling into the cutter housing and damaging the knives. There is also a risk that damaged flaps can be thrown back by the machine.
• Emergency stop. Check the emergency stop function by starting the
granulator and then stopping it using the emergency stop button. The emergency stop is reset by turning the emergency stop button in the direction of the arrow. The machine can then be re-started by pressing “START”.
6.2.2 Weekly inspection
• Cables. Inspect all cabling in the machine to see that there is no wear or
other damage. For reasons of personal protection, damaged parts should be replaced immediately.
• Safety switches. There are two safety
switches, one for the screen box and one for the hopper:
Screenbox: Check the safety switch by starting the granulator and then unscrewing the break screw (A) on the bottom of the belt guard, as described in chapter 5.2. The granulator should have stopped before you are able to open the screenbox.
A
Hopper: Open the hopper as described in chapter 5.2, but close and lock the screenbox. Check the safety switch to the hopper by starting the granulator . It should not be possible to start the granulator until the hopper is lowered and the break screws are screwed in.
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6.3 Cleaning
Always take great care when handling the knives since they ar e very sharp and can cause personal injury.
1. Open the hopper and screenbox as described in chapter 5.2.
2. Clean the hopper, flaps, screen and screenbox and granule bin.
3. Clean the cutter-housing and inside the stand.
4. Replace all parts in reverse order.
NOTE: When mounting the screenbox the link screws' nuts (A) must be tightened quite hard to avoid only one of the link screws taking the whole load.
A
Note: Steps 2 - 4 should be carried out every time the machine is cleaned,
or at least once every 300 hours.
6.4 T rouble-shooting
6.4.1 If the granulator does not start
• Check that the saftey switches’ break screws are turned fully clockwise. It is not possible to start the granulator unless the break screws are screwed in.
• Check that the emergency stop is not activated. It can be reset by turning the button in the direction of the arrow.
• The bimetal relay F1 in the electrical cabinet, according to the diagram opposite, is released if you press stop or overload the granulator. This is indicated by the small green rectangular pin (P), which sticks up above the surface of the bimetal relay. When you reset by pressing the "Reset" button, the pin (P) is pushed back in so that it is level with the surface of the bimetal relay.
P
NOTE: Set the main circuit-breaker to position "0" when cleaning the granulator. Empty the granulator of all material before restarting it.
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7. Servicing
All servicing work should be carried out by a qualified service engineer and in the order described, to prevent personal injury or damage to machinery .
7.1 Changing the knives
When changing the knives, also check for any wear to the screen. For safety reasons, this should be replaced when the holes in the screen become drop­shaped.
Always take great care when handling the knives since they are very sharp and can cause personal injury. Use protective gloves!
7.1.1 Changing the fixed and rotating knives
For safety reasons, damaged screws must be replaced.
• Open the screenbox as described in chapter 5.2.
Disassembling the rotating knives (C):
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1. Remove the fastening screws (A) and washers (H).
Disassembling the fixed knives:
1. Loosen screws (E), 5 on each long side and 2 on the short side opposite the belt guard, total 12 pieces.
2. Remove the screws (D), 2 on each fixed knife.
3. Loosen the stop screws (F), 2 on each fixed knife.
4. Screw the special extractor (G) (in the tool kit) into the threaded hole on the knife end and pull out the knife.
Assembling the lower fixed knife:
1. Check that the knives and the grooves for the knives are free from plastic waste, grease, etc.
2. Place the lower fixed knife in position.
3. Adjust the lower fixed knife to its forward position using the adjusting screws (F). NOTE: These screws should only support the rear edge of the knife and should not be tightened so much that the knife bends.
4. Tighten the 5 screws (E) (in the diagram above) along the lower long side with a torque of 20 Nm.
5. Screw in and tighten the screws (D).
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