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Country of origin: Denmark
Power Flex TL is designed for stretch hood wrapper loads of varying heights, but is only suitable for a limited number of pallet sizes. If there is a significant difference in dimensions between the smallest and largest pallets, it is worth considering the Multi Flex machine.
Like other Lachenmeier stretch hood models, the Power Flex TL is equipped with a unique technology that allows the upper part of the machine to be lowered to floor level for easy maintenance and repair (EP 2069206 B1).
Power Flex TL can achieve a capacity of up to 200 loads per hour.
Film turning device for long-side products
Regardless of whether the pallets are fed into the machine from the short or long side, the film is automatically turned according to the direction of the pallet.
This method is especially often used in the brick and mortar industry for transporting long-side products.
BASICS OF THE TECHNICAL SOLUTION
1. Machine frame with four supports and chain drive
It ensures vertical movement.
2. Upper module
This module includes a film feeder and four movable grippers for film opening. The system for making covers consists of film feed rollers, a double sealing system and a film cutting element. The upper module can be lowered for film replacement and maintenance.
3. Four film stretching units - hydraulic system
Each unit has its own motor responsible for film winding and holding it during stretching. These units are driven by hydraulic cylinders, and the central hydraulic station is located at the bottom of the packer.
4. Film feed control system when putting on the cover (Patent EP 1 184 281)
When the cover is stretched onto the goods, a controlled amount of film is fed to it, which prevents it from becoming thinner and damaged, especially in the corners (the film remains 30% thicker in the corners). This system ensures uniform film placement on the top of the load and allows saving up to 10% of film due to vertical stretching.
5. Automatic positioning of film stretching units
The stretching units are positioned for maximum efficiency in accordance with the dimensions of the load. In the event of a change in the film size in the future, the system will be able to adjust the stretching via the PLC controller.
6. Automatic measurement of product height
The height of each pallet is measured using photo sensors immediately before the pallet enters the packer.
7. Film feed device
This device forms a cover consisting of two sets of rollers for feeding the film, a sealing mechanism and a cutting mechanism. The knife is driven by a pneumatic cylinder. The welding and cutting mechanism is designed so that worn parts can be replaced in just a few minutes without the use of tools.
8. Pallet geometry checking system
This system monitors the dimensions of the load when stretching the cover. If the package is formed incorrectly or has shifted during transportation, the system automatically adjusts the position of the film stretching units. If the product dimensions are outside the permissible limits, the packaging cycle stops and an error message is displayed on the control panel.
9. Film turning device for products with a long feed side
Regardless of which side the pallets are fed into the machine, the film automatically turns in accordance with the direction of the pallet.
10. Floor-standing film dispenser
This device allows you to use rolls with a maximum diameter of 1000 mm. Sensors determine the remaining film on the roll and issue a warning when the specified level is reached.
11. Control cabinet
It is installed on the unit. The cabinet contains a Siemens Simatic S7 series controller. The front panel contains the main switch, emergency stop button, controls and display for easy error detection and manual control. The cabinet has a 20% free space reserve and complies with the following standards: CE, EN/IEC.
12. Separate control panel
The panel is equipped with an emergency stop button, controls and a display module, which allows easy error diagnosis in the event of malfunctions and for manual control of machine functions. The cable between the control cabinet and the panel is included in the delivery.
SAFETY EQUIPMENT
13. Safety fence
The fence surrounding the packer includes one door with a release mechanism.
14. Light barrier
One set is installed at the entrance and one at the exit of the packer. The sensors automatically stop the packer if anyone tries to enter the machine from the front or rear.
Photocells for personal safety are category 4: one set is installed at the exit and one at the entrance, interrupting the machine in case of unauthorized access. Category 4 security provides maximum protection.
Lachenmeier machines are manufactured and supplied in accordance with the generally accepted integrated design directives:
- Machinery Directive 1998 (98/37/EC)
- EMC Directive – 1989 (89/336/EEC)
- Low Voltage Directive – 1973 (73/23/EEC)
OPTIONS
15. Teleservice (Siemens S7 PLC)
This function allows our service engineers to monitor faults and make minor software changes via a REX 300 modem with cable. The connection is made via Ethernet Internet.
TECHNICAL DATA
Power: 12-16 kW, main fuse up to 63A
Voltage: 3 x 400 V, 50 Hz; control voltage: 24 V (DC)
Protection: IP 55 (control panel), IP 54 (packer, except fans and soldering)
Ambient temperature: 0 ° - 40 ° C
Humidity: up to 90% at 20 ° C
Compressed air: 6 bar
Noise: 66 dB (A) at 1 m from the packer
Color: frame RAL 7012, conveyor RAL 7012, fence RAL 7037, control cabinet RAL 7035, film feeder RAL 7012
Delivery time from the manufacturer's factory: 20-30 weeks. We will inform you of the exact delivery date after placing your order on the website.