RAMELLA & C.
Textile machinesmade in Italy since 1947
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The carder begins the process of aligning the fibers in a parallel arrangement, but pin drafting completes this process.
In addition, drafting blends together different fiber types or colors, creates a uniform sliver to produce an even yarn without thick and thin defects, and can be used to produce a sliver of any desired thickness.
Drafting considerably influences the quality of the final product, as it is the final step in which any sliver irregularities are corrected prior to spinning.
Whereas a drawframe is used in the parallelizing of cotton and short fibers, a pin drafter is used for processing wool, alpaca, and other long staple fibers.
To guarantee the optimal quality of the yarn Ramella offers a chain driven, gill box pin drafter.
Compared with the screw driven gill box our machine allows a much higher production speed (55 m (60 yd) per minute), a very low noise level, lower energy consumption, and easier maintenance.
The long pinfield guarantees the full control of the fibers and the smooth release movement of the pins avoids the small imperfections caused by the screw system.
Lastly, the complete rotation of the faller bars allows vacuuming of the pins while the pindrafter is running.
The operation of the Ramella pin drafter is quite simple:
The cans containing the carded sliver are placed below the creel where rotating rollers facilitate the movement of the slivers from the containers and into the entrance of the gill box.
The first roller unit brings together several slivers and introduces them into the pinfield without slippage.
The pins on the faller bars and the central group of 3 rollers perform the combing and drafting of the slivers. This is the heart of the machine in which the main operation is performed.
In the final part the last roller unit assists in delivering the drafted sliver to the can coiler.
The pin drafter is equipped with two independent motors controlled by rotary encoders allowing both the draft ratio and the drafting speed to be changed quickly and easily using a touchscreen input or the twist of a dial.
The machine is capable of achieving draft ratios between 1 and 10 in 0.01 increments.
No calculations are necessary as the selected draft ratio automatically sets the pin field and roller speeds to the correct values for obtaining the desired result.
In addition, the speed of the can coiler can be easily adjusted during the drafting run in order to synchronize the coiling speed with the output speed of the pin drafter.
The pin drafter is equipped with 3 photoelectric sensors that make it a semi-automatic system:
• A sensor at the entrance stops the machine if a sliver breaks or when the cans empty.
• A central sensor constantly checks the presence of the sliver immediately after the drafting unit in order to quickly stop the machine in the case of sliver breakage or wrapping.
• A sensor on the coiler performs a final check to prevent errors during the entire process.
From the control panel it is possible to activate or deactivate each sensor with a simple click.
Lastly, it is possible to set the desired length of the sliver produced: when this value is reached, the pindrafter stops automatically.
These control systems make the pin drafter a machine that requires minimal intervention by the operator.
To guarantee the optimal quality of the yarn Ramella offers a chain driven, gill box pin drafter.
Compared with the screw driven gill box our machine allows a much higher production speed (55 m (60 yd) per minute), a very low noise level, lower energy consumption, and easier maintenance.
The long pinfield guarantees the full control of the fibers and the smooth release movement of the pins avoids the small imperfections caused by the screw system.
Lastly, the complete rotation of the faller bars allows vacuuming of the pins while the pindrafter is running.
The operation of the Ramella pin drafter is quite simple:
The cans containing the carded sliver are placed below the creel where rotating rollers facilitate the movement of the slivers from the containers and into the entrance of the gill box.
The first roller unit brings together several slivers and introduces them into the pinfield without slippage.
The pins on the faller bars and the central group of 3 rollers perform the combing and drafting of the slivers. This is the heart of the machine in which the main operation is performed.
In the final part the last roller unit assists in delivering the drafted sliver to the can coiler.
The pin drafter is equipped with two independent motors controlled by rotary encoders allowing both the draft ratio and the drafting speed to be changed quickly and easily using a touchscreen input or the twist of a dial.
The machine is capable of achieving draft ratios between 1 and 10 in 0.01 increments.
No calculations are necessary as the selected draft ratio automatically sets the pin field and roller speeds to the correct values for obtaining the desired result.
In addition, the speed of the can coiler can be easily adjusted during the drafting run in order to synchronize the coiling speed with the output speed of the pin drafter.
The pin drafter is equipped with 3 photoelectric sensors that make it a semi-automatic system:
• A sensor at the entrance stops the machine if a sliver breaks or when the cans empty.
• A central sensor constantly checks the presence of the sliver immediately after the drafting unit in order to quickly stop the machine in the case of sliver breakage or wrapping.
• A sensor on the coiler performs a final check to prevent errors during the entire process.
From the control panel it is possible to activate or deactivate each sensor with a simple click.
Lastly, it is possible to set the desired length of the sliver produced: when this value is reached, the pindrafter stops automatically.
These control systems make the pin drafter a machine that requires minimal intervention by the operator.
The solid structure, attention to detail, and quality at an affordable price make the Ramella gill box drafter the ideal tool to regularize and draft the fibers.
Unlike the second hand pin drafters driven by screw mechanisms the Ramella gill box drafter offers:
• A very high speed.
• Maximum flexibility with the electronic control of the motors.
• Less noise than the screw system.
• Greater economy of operation and maintenance.
Compared to other models on the market the Ramella drafter offers:
• A machine specifically designed for small commercial mills and laboratories.
• A low noise, chain driven pin field.
• A driven creel to reduce sliver breakage.
• A semi-automatic system that reduces the need for human intervention.
In addition to the action of the brushes, there is a vacuum cleaner that removes dust from both pin fields.
Lastly, each roller of the pin drafter is equipped with an independent cleaning system easily accessible for rapid maintenance.
The Ramella gill box drafter is equipped with a driven creel which allows the positioning of up to 8 cans.
The creel roller movement is synchronized with the machine and is safe and quiet.
The Ramella rotating creel rollers are superior to fixed creels because they allow even the most delicate slivers to be transported into the machine without breakage.
The creel structure is made of aluminum and can be designed according to the type and size of cans used.
Electric specifications:
Installed power: 3.5 kW + 0.4 kW (Can coiler)
Power consumption: 2.5 kW
Single phase 230V 50/60Hz (customizable)
Size (length x width x height):
Pin drafter + Can coiler: 4380 mm x 1470 mm x 2100 mm (172'' x 58'' x 83'')
Download CAD layout drawing (PDF version)
In addition to the action of the brushes, there is a vacuum cleaner that removes dust from both pin fields.
Lastly, each roller of the pin drafter is equipped with an independent cleaning system easily accessible for rapid maintenance.
The Ramella gill box drafter is equipped with a driven creel which allows the positioning of up to 8 cans.
The creel roller movement is synchronized with the machine and is safe and quiet.
The Ramella rotating creel rollers are superior to fixed creels because they allow even the most delicate slivers to be transported into the machine without breakage.
The creel structure is made of aluminum and can be designed according to the type and size of cans used.
Electric specifications:
Installed power: 3.5 kW + 0.4 kW (Can coiler)
Power consumption: 2.5 kW
Single phase 230V 50/60Hz (customizable)
Size (length x width x height):
Pin drafter + Can coiler: 4380 mm x 1470 mm x 2100 mm (172'' x 58'' x 83'')
Download CAD layout drawing (PDF version)
