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Combing machine and working method of pre-spun yarn

A working method and combing technology, applied in the field of combing machines, can solve problems such as energy consumption, motor heating, etc.

Active Publication Date: 2022-02-25
MARZOLI MASCH TEXTILE SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, these solutions have considerable disadvantages mainly related to energy consumption, heating of the motors, the duration of these motors and the response of the movement control

Method used

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  • Combing machine and working method of pre-spun yarn
  • Combing machine and working method of pre-spun yarn
  • Combing machine and working method of pre-spun yarn

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0024] The first embodiment ( Figure 1 to Figure 10 )

[0025] The combing machine according to the invention comprises a stationary frame and a plurality of combing heads, wherein each combing head comprises a nipper 4 supported by the stationary frame.

[0026] The tongs 4 include a lower jaw 6 , an upper jaw 8 and a straight comb 10 generally integral with the lower jaw 6 .

[0027] Furthermore, the jaw 4 includes a feed roller 12 supported by the lower jaw 6 , which can rotate in an intermittent manner on command.

[0028] The combing head also comprises at least one pair of separating rolls downstream of the nipper 4 .

[0029] For example, preferably immediately downstream of the tongs 4, in front of it, there is a pair 20' of superimposed (preferably in pressure contact) separating rollers 20a', 20b' with continuous rotational movement (with constant or Variable but irreversible speed), such as dragging a length of web protruding from the jaws, detaches the tufts ...

no. 2 example

[0086] The second embodiment ( Figure 11 )

[0087] According to another embodiment substantially following the above, the transfer device 40 is engaged with the main surface 28 of the main device 26 by means of an arcuate engagement portion Ai, for example through an arcuate portion of the side surface 30' of the main roller 30, the arcuate The engagement portion is defined to cooperate with the transfer roller 200 .

[0088] For example, the path of the belt 50 of the transfer device 40 is defined by said transfer rollers 200 .

[0089] In this embodiment, the tufts S' (and thus the combed wire) are not detached from the main surface 28 to move unsupported towards the transfer device 40, but only at the arcuate junction when they have been supported by the transfer device 40. The ends of Ai are separated from the main surface 28 .

no. 3 example

[0090] The third embodiment ( Figure 12 )

[0091] According to another embodiment substantially following what has been described above, the primary device 26 comprises a primary belt 100 movable along a closed path facing the outlet ports 24 of the auxiliary rollers 20a, 20b.

[0092] For example, the path of the main tape 100 is defined by a lower main roll 102 and an upper main roll 104 on which the main tape 100 is wound.

[0093] The main belt 100 has an outer surface forming said main surface 28 of the main device 26 in a stretch in front of the outlet port 24 against which the tufts from the auxiliary rollers 20a, 20b strike.

[0094] A portion of the main surface 28 forms the impact area.

[0095] The main surface 28 is airtight, ie no holes or gaps are provided for the suction flow intended to retain the tufts transported by said main surface.

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PUM

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Abstract

A combing machine capable of carrying out a working method comprising separating the tufts (S') of the web by a pair of separating rollers (20a', 20b') rotating continuously, transferring the tufts (S') to the auxiliary rolls (20a, 20b) through which the tufts (S') are sent to the main roll (30) having a peripheral speed lower than that of the auxiliary rolls, so that the tufts The pile (S') hits the main roll (30) and thereby pulls the tuft, separates another tuft (S"), sends said other tuft (S") towards the main roll (30), so that the other tuft (S") The head section (Hs") of the tufts (S") intersects the tail section (Ts') of the tufts (S') to form a continuous combed web (W) such that the combed web (W) The outlet channel (32; 112) exits and transfers the combed web (W) to the transfer device (40) so that the head section (Hs") of another tuft (S") Intersects and lays beneath the tail section (Ts') of the tuft (S').

Description

technical field [0001] The object of the invention is a combing machine for pre-spun yarn. [0002] In pre-spinning, after the initial step of opening and cleaning the fibers, the carding is performed by a carding machine and the fibers are then in the form of slivers. [0003] After a possible treatment on a lap winder where several separate slivers are joined to obtain a lap, the web or sliver is combed by a comber in order to obtain a sliver in which the fibers are highly parallel and clean. Background technique [0004] The basic combing operations following each other at a rate of 500 to 550 strokes per minute in recent machines are: [0005] - Feed the web intermittently; [0006] - combing the heads of the incoming tufts by means of a rotating comb with the jaws closed; [0007] - the tufting head is overlapped and coupled to the web already combed in the previous cycle, and moved backwards appropriately by the detaching roller during its backward rotation; [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01G19/18
CPCD01G19/18
Inventor 吉罗拉莫·普兰迪尼卢卡·索利亚尼
Owner MARZOLI MASCH TEXTILE SRL
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