JPS63303130A - Bottom epron cradle apparatus for spinning frame - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bottom apron cradle device for a spinning machine.

[Conventional technology]

A device of this kind is disclosed in DE 35 09 164 A1, in which a bottom apron cradle device for a spinning machine cooperates with a top apron unit held on a support and load arm, and a bridge defining the draft plane of the bottom apron. The bridge has a guide roller on the receiving side and a guide edge on the sending side, so that the guide roller facing the top apron roller cooperates with the outer peripheral surface of the bottom apron. It is held in the correct position by the top apron roller, which is in the correct position relative to the drive roller on the spinning machine.
Also, a type of spinning machine is known in which the bottom apron cradle is removably disposed with respect to the body of the spinning machine with the above-mentioned configuration.

Also, Patent Publication No. 3325519 of the Federal Republic of Germany
In another type of bottom apron cradle in the form of a roller bridge, as disclosed in US Pat. This connecting member is provided with a centering pin for holding the roller bridge to a stationary draft plate.

[Problem to be Solved by the Invention] However, in the former of the two known devices mentioned above, it is possible to install as well as replace the bottom apron if necessary; It is necessary to remove and subsequently replace the bottom apron cradle, which is fixed to the frame of the spinning machine with screws.

Also, in the latter case, centering means that the gauge must already be set.

SUMMARY OF THE INVENTION An object of the present invention is to provide a bottom apron cradle device for a spinning machine that can be easily attached to and detached from the machine body even when the gauge setting is different.

[Means for Solving the Problems] According to the present invention, the above object is achieved by having a bottom apron cradle made of plastic having a mounting shell that is attached in a clip-like manner to a bar member that is a profile material that is firmly supported on the body of a spinning machine. This is achieved by ensuring that

In the present invention, the preferred embodiments are listed below.

(2) In the basic configuration of the present invention described above, the guide roller of the bottom apron cradle can slide within a set range parallel to the draft surface.

■ In the above ■, on both sides of the apron bridge,
A protruding tongue is provided which is slotted to support the axial shoulder of the guide roller.

(2) In the above-mentioned basic configuration of the present invention or the above-mentioned preferred embodiments (1) or (2), the guide roller is supported by an arm rotatably attached to the bottom apron cradle.

■ In the above item (■), the arm body is supported by the support part of the bottom apron cradle so that it can be easily removed.

(2) In any of the above-mentioned basic configuration of the present invention or the above-mentioned preferred embodiments (1) to (3), the clearer facing the outer peripheral surface of the apron is located at the back of the guide edge.

■ In the above item (■), the clearer is formed with a suction port for removing separated fibers.

(2) In the above (2), the clearer is formed on the bottom apron cradle and is attached to one side wall of the holding lug containing the shell.

(2) In (1) or (2) above, the inlet port communicates with the ventilation hole extending in the region between the side wall as the clearer and the mounting shell.

■ In the above-described basic configuration of the present invention, or in any of the above preferred embodiments ■ to ■, the side wall of the ventilation hole facing the shell is located at the opening of the bar member formed as a pipe material. form a gap.

[Phase] In the above item (2), the ventilation hole has a non-circular cross section.

■ In the above ■ to [phase], a guide flange is provided on the slack side of the bottom apron.

■ In the above (■), a tensioning device for the bottom apron is attached to the guide flange.

■ In the above (■) or @, the guide flanges are connected to each other by side walls extending perpendicularly to the apron bridge on both sides, and a guide edge is formed on the apron bridge.

(2) In (2) above, the side wall has receiving openings for additional parts.

(2) In any of the basic configurations of the present invention described above or the preferred embodiments (1) to (0) above, the support surface for the top apron guide brace is formed in the bottom apron cradle on the side of the guide edge.

(2) In any of the above-mentioned basic configuration of the present invention or the above-mentioned preferred conditions (1) to (3), the surface of the apron bridge and the surface of the guide roller have finely roughened surfaces.

[Function] According to the above-described basic configuration of the present invention, the bottom apron cradle can be attached to the machine freely because it is attached in a clip-like manner.

In addition, since the mounting shell is attached to the bottom apron cradle, the distance between the guide roller and the mounting point of the mounting shell is long, so when the support/load arm swings upward, the bottom apron cradle This creates a pivot movement about the above attachment point. This pivot movement is
Release the guide roller and bottom apron from the cable stretching pressure of the drive roller. The bottom apron is thus stopped.

In the preferred embodiment of the present invention described above, when the load is released and the bottom apron cradle is disconnected from the drive, the bottom apron is moved on the bottom apron cradle as a result of the guide roller being able to move freely. It releases tension and can be easily installed and removed.

Furthermore, according to the above item (2), the guide roller can be attached to the bottom apron cradle without using any tools, which further simplifies the installation.

Furthermore, according to the above item (■), it is possible to obtain an apron that can be adapted to the draft conditions of wool or a mixed fiber of wool and synthetic fibers, etc., and can be controlled better, and if the elements set on the fuselage are lifted up. If an offset occurs, the apron bridge can follow it and rise above the normal draft plane.

Furthermore, according to the form described in item (■) above, a pair of arms with different lengths can be used without difficulty, and the length of the main draft area can be changed, and it can be adapted to the length of the fiber to be drafted. Become.

According to the above embodiments (1) and (2), it is advantageous in terms of operation. On the other hand, if a special combination of clearer and suction port is used to remove residual fibers and dust attached to the apron, as shown in ■ and ■ above, the attachment provided on the bottom apron cradle is like a shell. Particularly advantageous.

Particularly, if the method described in (2) above is adopted, the attachment of the bottom apron cradle is particularly preferable because the shell and the bar member fixed to the fuselage can also be used as parts of the suction means.

If the ventilation hole has a special cross-sectional shape like the above [phase],
A non-rotating member can be inserted and supported here when the vent is not in use. For example, a cleaning brush or cleaning row for the draft roller.

Furthermore, according to the embodiment (2), the apron is well guided during operation, and the apron is reliably held during suspension of operation.

For a bottom apron cradle fitted with a longer apron, the above configuration can be used, the flange of which guides and tensions the apron to a predetermined value.

In the form described in item (2) above, the stability of the unique flange is increased and the strength of the entire bottom apron cradle is also increased. The guide edge also provides good guidance for the apron.

According to the form of [phase] above, the receiving opening in the side wall is used for attaching auxiliary parts and the like. For example, it is a member of a device for monitoring the flow of rovin material, or a clamping device.

The configuration (2) above is advantageous when determining the tensor gap between the top apron and the bottom apron. Depending on whether the top roller that cooperates with the bottom apron cradle and is gripped by the support/load arm is a single top roller or a tandem top roller, it is determined whether the support surface for the top apron cage can be provided on both sides of the bottom apron cradle or only on one side.

Furthermore, according to the above-mentioned [phase] form, in order to prevent adsorption that would occur in the case of a smooth surface by air introduced into a rough surface, the sliding property at the apron bridge of the bottom apron is is improved, and running performance on the guide rollers is improved.

Thus, if the present invention takes the preferred form described above, it meets many practical needs and provides good results with a simple structure.

〔Example〕

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.

Fig. 1 is a side view of the device according to the first embodiment of the present invention in the operating position, and Fig. 2 shows a pair of bottom apron cradles on which the top apron bridge is mounted, with both aprons omitted and slightly scaled down. FIG. 1 is a front view of the device, FIG. 3 is a side view of the device of the second embodiment, and FIG. 4 is a side view of the device of the third embodiment.

In FIGS. 1, 3, and 4, reference numeral 1 designates the machine body of the spinning machine according to the present invention, and the drive roller 2 of the bottom apron and the driven front bottom roller 3 are rotated by bearings provided on the machine body 1. It has become. A front top roller 4 is mounted on the front bottom roller 3 and is held by a support/load arm (not shown).
The support/load arm also supports a top apron unit comprising a top apron roller 5, a top apron guide plate 6 and a top apron 7.

As shown in FIG. 1, associated with said top apron unit is a cradle (indicated in its entirety by 8) for the bottom apron 9.

For holding and guiding the bottom apron 9, an apron bridge 10 defining a draft surface is formed in the bottom apron cradle 8. Preferably, the bottom apron cradle 8 is made of plastic material. A guide roller 11 is arranged on the rear end side (fiber receiving side) of the apron bridge, and a guide edge 12 is formed on the front end side. Also, at the bottom of the apron bridge 10, there are guide flanges 13 and 14 for the slack side of the apron.
is provided.

As supporting surfaces for the guide rollers 11, projecting tongues 15 are provided on both sides of the apron bridge of the bottom apron cradle 8. Each tongue has a slot 16 for supporting a shoulder 17 provided at the axial end of the guide roller 11, said shoulder 17 being fitted into the slot 16. By increasing the distance between the edges of the tongues on both sides,
A guide roller 11 can be fitted into the slot, and within the length of the slot 16 the guide roller can slide within the slot.

In this embodiment and all subsequent embodiments, the bottom apron cradle 8 is attached to the fuselage 1 in a similar manner. In the region of the front end, the bottom apron cradle 8 is loaded onto the bottom apron cradle by the top apron unit.

The mounting, which is open in the direction in which the weight is applied, has a retaining lug 18 with a shell 19. The shape of this shell is such that it is firmly fixed to the fuselage 1 and that the rollers 2, 3
The cross section extending parallel to the bar member 20 is shaped to fit the circular bar member 20, and is formed so as to surround the bar member slightly more than half its circumference. Due to the elasticity of the material, the shell 19 is fitted in a clip-like manner with the bottom apron cradle 8 onto the bar member 20 as a mounting member. The mating and uncoupling will, of course, take place when the support and load arm is tilted to a sufficient extent.

Such a device positions the bottom apron cradle 8 only in the loading direction and in the height direction of the draft plane.

In the operating state shown in FIG. 1, the top apron roller 5 applies pressure to the guide roller 11, which in turn presses the drive roller 2, and the bottom apron 9 whose outer peripheral surface is pressed against the drive roller 2. will run in rotation. Then, the top apron 7 rotates together with this. When the pressure is released, the bottom apron cradle 8 can rotate counterclockwise around the axis of the bar member 20 at its attachment point (the attachment point is at the shell 19).

Moreover, the guide roller 11 can slide at the shoulder 17 within the slot 16 forming the support. At that time, between the bottom apron 9 and the drive roller 2,
A small amount of pressure remains, which is insufficient for driving.

If the bottom apron cradle 8 is released from the clip-like fitted state, the bottom apron cradle 8 can be removed from the above-mentioned attachment point and taken out from the machine. The bottom apron 9 can then be removed by sliding it towards the side edges. Furthermore, if the shoulder portion 17 of the guide roller 11 is moved to the other end within the slot 16, the bottom apron 9 will be loosened and the side portion 23
The bottom apron can be easily removed by sliding on the guide edges 21, 22 which protrude beyond the bottom apron.

The bottom apron cradle 8 of the second embodiment shown in FIG. 3 supports a bottom apron 9a that is longer than the bottom apron shown in FIG. In order to ensure that this bottom apron 9a is guided without slipping on the guide flange 13.14, a tensioning device is provided on the guide flange 14.

The tensioning device itself may have a member made of an elastic material, or as shown in the figure, it may be movable within a certain range and transmit pressure from the compression spring 25 to the slack side of the bottom apron. Tension slide 26 to keep the apron in the correct position
The housing 24 provided with the guide flange 14
They may be pressed against each other.

The bottom apron cradle 8a of the third embodiment shown in FIG. 4 rotates with a guide roller supported by an arm 27 that is supported by the main body of the bottom apron cradle and rotates around its support point 28. This embodiment differs from the previously described embodiments in that it is configured as follows. The guide roller 11 is inserted into the free end of the arm 27 and supported there.

In this case, since the arm 27 is rotatable, the support of the arm 27 for the axial shoulder 17 of the guide roller does not have to be designed as a slot.

This rotatability of the arms 27 makes it possible to move the apron bridge 10 to different higher draft planes, so that the guidance of the fibers can be adjusted without changing the position of the guide rollers 11 and the drive rollers 2. It can also be adapted to the material being drafted.

For this purpose, the bar member 20a, which forms the support point of the bottom apron cradle 8a on the fuselage and is tubular for other reasons explained below, is a block movable with respect to the fuselage 1 in the direction of the double arrow shown. It is fixed at 29. Also fixed to said block 29 is a support rail 30 on which a bottom apron cradle 8a with a guide edge 22 is firmly attached.

By adjusting the position of the block 29 with respect to the fuselage 1, the apron bridge 10 can be set at a desired height within the draft area. Adjustment of the blocks can be performed centrally on each device using a spindle, an eccentric pinion, or the like.

If the distance between the guide roller 11 and the guide edge 12 shown by the dashed-dotted line is changed by attaching a pair of arms with different lengths as shown by the dashed-dotted line, then the distance between the guide roller 11 and the guide edge 12, which is shown by the dashed-dotted line, is determined by the aprons 7 and 9. The length of the main draft zone can be varied to suit the material to be drafted. When making such an adjustment, it is also necessary to change the position of the drive roller 2 on the machine body 1 side to the position shown by the dashed line. The same applies to the top apron unit.

Apron cradle 8.8a in each embodiment described above
In order to remove residual fibers, dust, etc. adhering to the apron, a clearer 31 that contacts the outer peripheral surface of the apron is disposed behind the guide edge 12 in the moving direction of the apron. This clearer 31 is formed by one edge of the side wall 32 of the retaining lug 18, as best shown in FIG. In order to remove the material thus separated from the apron, said side wall 32 has a
An inlet 33 communicating with a ventilation hole 34 extending between the shell 19 and the attachment of the holding lug 18 is provided.

When the ventilation holes 34, which are open at both ends, are not actually used for inhalation, they may be capped at both ends to prevent dust from accumulating. Since the ventilation hole 34 has a non-circular cross section as shown in FIG. 3, it is convenient for holding the cleaning brush 37 for the front bottom roller 3 and the support part 35 of the cleaning roll arm 36 in a non-rotating manner. be.

If the vent hole 34 is used for inhalation,
One end may be sealed with a cap, and the other end may be connected to a suction pipe provided in the aircraft body.

In order to avoid the need to connect a tube to a vent hole 34 as shown in FIG.
9, the mounting is particularly advantageous if a gap 38 is provided in the wall of the vent hole 34 facing the shell 19. By doing so, the bar member 20a can be connected to a suction device on the fuselage.

As can be seen in particular from FIG. 2, a support surface 40 is formed on the surface of the guide edge of the bottom apron cradle 8. In operation, this support surface 40 supports a spacer member 41 arranged on the top of the top apron guide plate 6 which determines the tensor gap between the aprons 7 and 9 on the delivery side. In the illustrated example of a bottom apron cradle used with a support and load arm with a dandem torso roller, the support surface 40 may be on one side of the guide edge 12, but must be provided in three symmetrical locations. If the support and load arm is provided with a single top roller, support surfaces must be formed on both sides of the guide edge.

The bottom apron cradles 8, 8a and the side walls 23 can also be provided with receiving openings 42 shaped to hold other additional units as shown in FIGS. 1, 3 and 4.

Bottom apron 9,9 on bottom apron cradle
In order to improve the slippage of a and to improve the running around the guide rollers 11, their surfaces, especially the apron bridge 10 and the guide edge 120 surface as shown in FIG. It is best to have a rough surface. By doing so, air is included between the apron and its sliding running surface, improving sliding and running characteristics.

〔Effect of the invention〕

As described above, the present invention allows the bottom apron cradle to be freely and easily attached to and removed from the aircraft body, and as a result, the bottom apron can be easily replaced, making assembly and maintenance work easier. It has the effect of making it.

[Brief explanation of the drawing]

Fig. 1 is a side view of the device according to the first embodiment of the present invention in the operating position, and Fig. 2 shows a pair of bottom apron cradles on which the top apron bridge is mounted, with both aprons omitted and slightly scaled down. FIG. 1 is a front view of the device, FIG. 3 is a side view of the device of the second embodiment, and FIG. 4 is a side view of the device of the third embodiment.

Claims (17)

[Claims] (1) A bottom apron cradle device for a spinning machine that cooperates with a top apron unit held on a support and load arm is in the form of a bridge that defines the draft surface of the bottom apron, and the bridge has a guide roller on the receiving side and By adopting a configuration in which a guide edge is provided on the sending side, the guide roller facing the top apron roller is located at a normal position relative to the drive roller on the spinning machine that cooperates with the outer peripheral surface of the bottom apron. In the case where the bottom apron cradle (8) made of plastic is held in a normal position by the machine body, and the bottom apron cradle is removably disposed on the body of the spinning machine due to the above structure, the bottom apron cradle (8) made of plastic is firmly supported on the machine body of the spinning machine. A bottom apron cradle device for a spinning machine, comprising an attachment shell (19) attached to a barrel bar member (20; 20a) in a clip-like manner. (2) The bottom apron cradle device for a spinning machine according to claim (1), wherein the guide roller (11) of the bottom apron cradle (8) is capable of sliding movement in parallel with the draft surface within a set range. . (3) Guide rollers (
slot (16) supporting the shaft end shoulder (17) of
3. The bottom apron cradle device for a spinning machine according to claim 2, further comprising a protruding tongue portion (15) formed with a protruding tongue portion. (4) Among claims (1) to (3), the guide roller (11) is supported by an arm (27) rotatably attached to the bottom apron cradle (8a). A bottom apron cradle device for a spinning machine according to one of the above. (5) The bottom apron cradle device for a spinning machine according to claim (4), wherein the arm body (27) is supported by a supporting portion of the bottom apron cradle (8a) so that it can be easily removed. (6) Clearer facing the outer surface of the apron (9, 9a) (
31) is disposed at the back of the guide edge.
A bottom apron cradle device for a spinning machine described in . (7) The bottom apron cradle device for a spinning machine according to claim (6), wherein the clearer (31) is formed with a suction port (33) for removing separated fibers. (8) The clearer (31) is a side wall (32) of one of the retaining lugs (18) formed in the bottom apron cradle (8, 8a) and comprising the mounting shell (19). ) bottom apron cradle device for spinning machines. (9) The inlet (33) is in communication with a ventilation hole (34) extending in the area between the side wall (32) as a clearer (31) and the mounting shell (19).
) or the bottom apron cradle device for a spinning machine according to claim (8). (10) Vent holes (34) facing the mounting shell (19)
) The side wall of the bar member formed as a tube member (20a) forms a gap (38) located in the opening (39) of the bar member (20a).
9) The bottom apron cradle device for a spinning machine according to one of items 9). (11) The bottom apron cradle device for a spinning machine according to claim (10), wherein the ventilation hole (34) has a non-circular cross section. (12) Guide flange (1
3, 14) The bottom apron cradle device for a spinning machine according to any one of claims (7) to (11). (13) Tensioning device (2) for bottom apron (9a)
The bottom apron cradle device for a spinning machine according to claim 12, wherein the bottom apron cradle device for a spinning machine is attached to the guide flange. (14) The guide flanges (13, 14) have side walls (23) extending perpendicularly to the apron bridge (10) on both sides.
The bottom apron cradle device for a spinning machine according to claim 12 or 13, wherein the apron bridges are connected to each other by a guide edge (21, 22). (15) The side wall (23) has receiving openings (4) for additional parts.
2) The bottom apron cradle device for a spinning machine according to claim (14). (16) Claim (1) characterized in that the support surface (40) for the top apron guide plate (6) is formed in the bottom apron cradle (8, 8a) on the side of the guide edge (12). or one of claims (15)
A bottom apron cradle device for a spinning machine described in . (17) The surface of the apron bridge (10) and the surface of the guide roller (11) are finely roughened surfaces, according to one of claims (1) to (16). Bottom apron cradle device for spinning machines.