CN100412246C

CN100412246C - Clamp of clamp roll

Info

Publication number: CN100412246C
Application number: CNB02131683XA
Authority: CN
Inventors: F·布拉特曼; L·马利纳; D·迪特里希
Original assignee: Maschinenfabrik Rieter AG
Current assignee: Maschinenfabrik Rieter AG
Priority date: 2001-09-11
Filing date: 2002-09-10
Publication date: 2008-08-20
Anticipated expiration: 2022-09-10
Also published as: CN1408912A; DE10145670A1; JP2003105643A; ITMI20021898A1

Abstract

The invention provides a clamp 20 of clamp roll 16 for loading a pressure spring 31, which can connect to the pressure arm of drafting device. The invention also provides the posibility of changing the position of the clamp roll and contact force.

Description

The anchor clamps of nip rolls

Technical field

The present invention relates to a kind of anchor clamps that are used for nip rolls, described roller is clamped on the pressure applying means by holder, and can be crushed on its counterpart to form the jaw line.

Background technology

Especially the nip rolls that needs clamping by this way in so-called cohesion spinning, therein, the rove that leaves drafting system at first passes the cohesion zone, twists with the fingers the coiled line then.On the direction of the parts that produce the spinning twisted lines especially ring spinning apparatus, the cohesion zone is subjected to the restriction of nip rolls and counterpart, and the two has formed the jaw line together, and the twisted lines that can prevent to spin turns back to the motion of condensing the zone.For the cohesion spinning, some diverse ways and device have been known, for example counterpart is the drum of tape punching, it relies on suction air (German patent DE 4426278A1, German patent DE 4426249A1 and European patent EP 0947614A2) or ventilative belt can work at the roller (German patent DE 19741441C1) of last operation at the profile (German patent DE 19837179A1) of last slip or belt with holes.

Summary of the invention

The purpose of this invention is to provide a kind of anchor clamps that change the above-mentioned type of clamped position.

This purpose can be in first embodiment realizes by this way, and wherein adjustable ground has connected the holder of the position that is used to change the jaw line on pressure applying means.

This purpose can realize by this way in a second embodiment that wherein in order to change the position of jaw line, the nip rolls adjustable ground is connected on the holder.

The invention provides a kind of anchor clamps that are used for nip rolls, described nip rolls is clamped on the pressure arm of drafting system by holder, and can be crushed on the counterpart to form the jaw line, this holder adjustable ground that is used to change the jaw line position is connected to pressure arm, it is characterized in that, anchor clamps comprise the construction unit that is connected on the pressure arm, this construction unit is formed by holder and sub-arm, the integrated compression spring of prestrain in this unit, this spring is arranged between holder and the sub-arm, holder is divided into two parts, wherein first is rotatably connected on the pressure arm, and second portion comprises the fixture of nip rolls, and first interconnects at least two different positions with second portion.

By being used for the drafting system of ring throstle, can form a kind of setting, wherein pressure applying means is the pressure arm of drafting system.

In another embodiment of the present invention, be provided with a kind of clamping seats as holder, its separated into two parts, one of them described part is connected on the pressure applying means, and another part comprises the fixture of nip rolls, and two parts of clamping seats interconnect on adjustable position.Therefore, the part that preferred setting of the present invention is a clamping seats is arranged to rotatable part, and it is by adjustable contact pressure clamping.

Because clamping seats is divided into the part of fixing rotating shaft and the fixing part of nip rolls, therefore having produced these two parts can be in the interconnective possibility in diverse location place, so just can change the jaw line of a pair of outlet roller of drafting system and the distance between the formed jaw line of nip rolls.

In an embodiment of the present invention, but two parts of clamping seats are provided with the profile of phase mutual designation.Like this, because these two parts can self not rotate each other because of the profile that has been shaped, therefore for example only just enough these two parts are connected with each other by a screw.

In another embodiment of the present invention, clamping seats and sub-arm have formed a structure member together, and it is connected on the pressure arm of drafting system.By other structure member, traditional drafting system can be transformed into the drafting system that is suitable for condensing spinning in simple relatively mode.Therefore, if in this structure member integrated bearing spring, it is well suited for so.Like this, in the other parts of drafting system, change with regard to not needing.

At one more in the advantageous embodiments, between clamping seats and sub-arm, be provided with the compression spring of prestrain.Therefore, can accurately bearing capacity be adjusted to predetermined value, nip rolls can be pressed on the counterpart by this bearing capacity.Therefore, more advantageously, in another embodiment, clamping seats is limited by retainer with respect to the maximum rotate path of sub-arm.Because the required path of operation operation is shorter relatively, even therefore should guarantee that nip rolls does not lean against on their counterpart, pre-mounted component also have with operation process in identical shape.

In another embodiment of the present invention, sub-arm is covered by cover cap.This cover cap can form handle, can touch pressure arm by this cover cap when opening drafting system.

In another embodiment of the present invention, sub-arm or cover cap are arranged to as the clearer fixture.Like this, can be pressure arm or the coupled other function of cover cap distribution.

Description of drawings

Other advantage of the present invention and feature come from the following introduction to the accompanying drawing illustrated embodiment, in the drawings:

Fig. 1 has shown the schematic side elevation of the drafting system that has pneumatic coacervation device,

Fig. 2 be used for coacervation device nip rolls anchor clamps perspective view and

Fig. 3 is the longitudinal sectional view of anchor clamps shown in Figure 2.

The specific embodiment

Drafting system that is schematically shown among Fig. 1 and pneumatic coacervation device combine.Drafting system comprises a pair of having along the bottom cylinder 10 of stands longitudinal extension and the feed roller of top cylinder 11, a pair of having, and a pair of outlet roller that has bottom cylinder 14 and top cylinder 15 along the bottom cylinder 12 of stands longitudinal extension and the intermediate calender rolls of top cylinder 13.Especially providing for ring throstle but also going in the drafting system of Speed frames, because bottom cylinder 12 and top cylinder 13 turn round sooner than bottom cylinder 10 and top cylinder 11, and bottom cylinder 14 and top cylinder 15 turn round sooner than bottom cylinder 12 and top cylinder 13, and therefore not shown rove is drawing to required spun yarn state.

Before the rove of drawing-off left drafting system, pneumatic cohesion had taken place in the zone that is positioned on the surface of bottom cylinder 14 after the top cylinder 15.For this reason, bottom cylinder 14 is designed to have the cylinder in hole, and this is for example known from German patent DE 4426249A1.Be provided with air-breathing mold insert in this perforate cylinder, it links to each other with vacuum source and is provided with the air-breathing groove that points to top cylinder zone afterwards, and described air-breathing groove preferably extends obliquely towards circumferencial direction.Nip rolls 16 is arranged on the circumference of bottom cylinder 14, and has formed the jaw line with bottom cylinder 14.This jaw line can prevent to be supplied to the spinning twisted lines of the rove in the zone between top cylinder 15 and nip rolls 16 to return by unshowned twisting apparatus such as ring spindle yarn device, promptly enters in the scope in pneumatic cohesion zone.

Be designed to drum with

holes bottom cylinder

10 and 12 and bottom cylinder 14 be driven in the mode that is not shown specifically in scheming.

Top cylinder

11,13,15 and nip rolls 16 are driven by the frictional force of driven

bottom cylinder

10,12 and bottom cylinder 14.

Top cylinder

11,13,15 and nip rolls 16 are provided with the elastic caoutchouc covering.

Drafting system is usually designed to doublet, and promptly the

top cylinder

11,13,15 and nip rolls 16 be dual roller, they the axle by pressure arm 17 clampings.Pressure arm 17 can make

top cylinder

11,13,15 and nip rolls 16 to lift from

bottom cylinder

10,12 and bottom cylinder 14 places, so that open drafting system around axle 18 rotations.Loaded bearing spring in known manner on the

top cylinder

11,13,15, as shown in Figure 1, if pressure arm 17 is clamped in operating position by securing rod 19, bearing spring can determine the pressure that contacts on

bottom cylinder

10,12 and the bottom cylinder 14 so.

Promptly be generally a pair of nip rolls for nip rolls 16, they self anchor clamps 20 are arranged to link to each other with pressure arm 17.These anchor clamps 20 comprise the sub-arm 21 that the cross section is a U-shaped, and it has surrounded the end of pressure arm 17 from the top, and are fixed on the pressure arm by screw 22 and threaded holding piece 23.

On sub-arm 21, screw shell 25 has been installed by two screws 24 as the rotating shaft of clamping seats 26.Clamping seats 26 is made up of two parts, that is, and and the rocking bar of installing by screw shell 25 27 and be connected pressure saddle 28 on the rocking bar.An arm face of rocking bar 27 has so just formed the stop device that rotatablely moves that can limit clamping seats 26 towards the cross connecting plate of U-shaped sub-arm 21.Rocking bar 27 is provided with the mounting portion 30 of compression spring 31, and it can lean against on the cross connecting plate of the stud 32 that is screwed in the mounting portion 30 and sub-arm 21.By regulating stud 32, the compression spring 31 that is used as the bearing spring of nip rolls 16 can the required pressure of prestrain.

The pressure saddle that is connected on the rocking bar 27 is provided with spring clip 32, utilizes this spring clip the axle of a pair of nip rolls 16 can be fixed in the pressure saddle 28.Pressure saddle 28 has substantially and is the cross section of U-shaped, and like this, the cross connecting plate that both sides are linked to each other is provided with vertical profile of prism or similar type.Utilize this vertical profile, pressure saddle 28 can be guided by the profile of the negative shape of rocking bar 27.By screw 34 being screwed in the screw of rocking bar 27, pressure saddle 28 can be arranged on the given position.As shown in Figure 3, rocking bar 27 is provided with other a screw 35 at least, makes pressure saddle 28 can be at least one link to each other with rocking bar 27 on other the position.Like this, can on the direction of four-headed arrow A shown in Figure 1, change the position of nip rolls 16 with respect to the position of pressure roll 15.

On the closing position of drafting system shown in Figure 1, the arm that carries the rocking bar 27 of pressure saddle 28 is arranged essentially parallel to the relevant tangent line of bottom cylinder 14, makes pressure saddle 28 can almost be tangential to this bottom cylinder 14 and regulates.In order to obtain correct contact pressure, can correspondingly regulate stud 32 to each locational nip rolls 16.

In representative embodiment, pressure saddle 28 and nip rolls 16 can only be regulated with respect to bottom cylinder 14 on two given positions.The advantage that limits the fixed position is that the possibility that makes a mistake when regulating frame is relatively low.Yet, should consider that ring throstle includes 500 to 600 yarning positions on each machine side surface, these yarning positions if possible all should be regulated in the same manner.

Yet,, so also the pressure saddle can be installed on the rocking bar 27 with regulating continuously if when for example on the cross connecting plate of pressure saddle 28, being provided with oval-shaped hole.Suitable template is provided when in this case, it is suitable for pressure saddle 28 on regulating all yarning positions.

Sub-arm 21 is covered by the cover cap 36 that preferably is made of plastics.This cover cap 36 is on the one hand as handle portion, can hold and lift the parts be made up of pressure arm 17 and sub-arm 21 herein to open drafting system.In addition, cover cap 36 has also formed the fixture that is used for a kind of clearer of not introducing in addition.

If the anchor clamps 20 of nip rolls 16 are not used in the drafting system shown in Figure 1, but be used for drafting system and subsequently be provided with self the bottom cylinder coacervation device, anchor clamps 20 can be arranged substantially in the same manner so.The arm that the rocking bar 27 of pressure saddle 28 so just can secured in alignment be arranged makes it to be adjusted to the tangent line that is parallel to this bottom cylinder.

In an improved form of present embodiment sub-arm is not set, like this, clamping seats directly is fixed on the pressure arm 17.

In another improved form of present embodiment, clamping seats is connected on pressure arm 17 or the sub-arm 21 as an overall structure parts adjustable ground, so that change the position of jaw line.

In addition, can also work out other solution, for example by be fixed on the pressure arm etc. arm-type balancing pole wait clamp pressure roller 15 and nip rolls 16, nip rolls 16 answers adjustable ground to be connected etc. on the arm-type balancing pole like this.

Claims

1. anchor clamps (20) that are used for nip rolls (16), described nip rolls is clamped on the pressure arm (17) of drafting system by holder (26), and can be crushed on the counterpart to form the jaw line, described holder (26) adjustable ground that is used to change the position of described jaw line is connected to described pressure arm (17)

It is characterized in that, described anchor clamps (20) comprise the construction unit that is connected on the described pressure arm (17), described construction unit is formed by described holder (26) and sub-arm (21), in described unit integrated the compression spring of prestrain (31), described spring (31) is arranged between described holder (26) and the sub-arm (21), described holder (26) is divided into two parts (27,28), wherein first (27) is rotatably connected on the described pressure arm (17), and second portion (28) comprises the fixture of described nip rolls (16), and described first (27) interconnects at least two different positions with second portion (28).

2. anchor clamps according to claim 1 is characterized in that, the first (27) of described holder (26) with second portion (28) but be provided with the profile of mutual designation mutually.

3. anchor clamps according to claim 1 is characterized in that, described holder (26) is subjected to the restriction of retainer with respect to the maximum rotate path of described sub-arm (21).

4. anchor clamps according to claim 1 is characterized in that, described sub-arm (21) has the U-shaped cross section.

5. anchor clamps according to claim 1 is characterized in that, described sub-arm (21) is covered by cover cap (36).

6. anchor clamps according to claim 1 is characterized in that, described sub-arm (21) or cover cap (36) are arranged to the fixture of clearer.