JPH0687368U - Sliver guide device - Google Patents

Abstract

(57) [Abstract] [Purpose] An inexpensive sliver guide device that stabilizes the running of the yarn between the draft rollers, eliminates the occurrence of winding of the yarn around the draft roller, and can be easily replaced as needed. obtain. [Structure] By attaching a plate-shaped sliver guide to a capacitor bracket, one side of the sliver guide approaches a draft roller located on the upstream side of the capacitor bracket to form a guide surface. A plate-shaped capacitor was installed on the bracket in a removable manner.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sliver guide device including a sliver winding prevention means and a capacitor.

[0002]

[Prior art]

 In the spinning device, the distance between each draft roller pair of the draft part is appropriately changed according to the fiber length of the single fiber constituting the spun yarn. When the distance between the draft roller pair becomes large, the fibers of the sliver sent out from the nip point of the draft roller pair have a long unsupported section between the roller pairs, and in particular, the wrapping of the fiber occurs on the peripheral surface of the bottom roller on the sending side. It tends to occur.

When the fibers in the draft start to be wound around the draft roller, the winding amount increases in a snowball manner, which not only causes the unevenness of the draft but also leads to the destruction of the nip surface of the roller. In addition, when using an air spinning nozzle, there was a case where a fiber jam was caused due to an incorrect draft in the threading hole of the air spinning nozzle, resulting in yarn breakage.

A condenser for introducing the sliver at the nip point of the draft roller pair is used. The condenser is for converging the sliver sent out from the upstream roller into a predetermined width and sending it to the nip point. The condenser has a U shape as shown in FIG. A block made of titanium that facilitates the reception of fibers, or a block made of ceramic that has a sliver guide hole with an open side on the inlet side, as shown in Fig. 3B, supported by a resin support. Etc. Each of these is fixed by fitting the respective engaging groove to the supporting piece of the plate-shaped condenser bracket as shown in FIG. 3C. All of the above capacitors are expensive, and it is economically burdensome to prepare many threads by changing the thickness of threading holes, groove width, etc. depending on the type of spun yarn thickness. .

[0005]

[Problems to be solved by the device]

 In view of the above points, the present invention is an inexpensive sliver that stabilizes the running of the yarn between the draft rollers, eliminates the occurrence of winding of the yarn around the draft roller, and can be easily replaced when necessary. The purpose is to obtain a guidance device.

[0006]

[Means for Solving the Problems]

 By attaching a plate-shaped sliver guide to the condenser bracket, one side of the sliver guide approaches a draft roller located on the upstream side of the condenser bracket to form a guide surface. Then, a capacitor made of a plate-shaped body was installed in a removable manner.

[0007]

[Action]

 By attaching the sliver guide made of a plate-shaped body to the capacitor bracket, one side of the sliver guide forms a guide surface. Further, since the guide surface is located close to the draft roller, the fibers released from the driver that try to wind around the draft roller are removed by the edge of the guide surface and run along with the sliver along the guide surface. However, it is prevented from being wound around the draft roller, and is converged by the condenser to a predetermined width and introduced into the nib surface of the roller pair.

When the fiber length of the fiber forming the sliver is changed, the fiber is replaced with a sliver guide having a guide surface having a length corresponding to the length, and the replacement is fitted into the capacitor bracket. Simply pull out the existing sliver guide and insert a new sliver guide.

[0009]

【Example】

 An embodiment of the device of the present invention will be described below with reference to the drawings. The example shown in a side view in FIG. 1A is an example implemented in a four-wire draft device, and includes a back roller pair 1 including a back top roller 1a and a back bottom roller 1b, a third top roller 2a and a third bottom roller 2b. And a second top roller 4a having an apron 3a and a second bottom roller 4b having an apron 3b, and a front top roller pair 5 having a front top roller 5a and a front bottom roller 5b. The sliver guide device 7 of the present invention is provided between the second roller pair 4 and the third roller pair 2 of the draft device 6 included therein.

The sliver guide device 7 of the present invention comprises a condenser bracket 8, a sliver guide 9 and a capacitor 10. The example shown in FIG. 1 is of a twin type in which two slivers S are simultaneously drafted in one draft part, and the condenser bracket 8 is provided on the upper portion of the leg that is appropriately fixed to the frame of the draft device (not shown). A support arm 11 extending in the width direction of the device is branched, and two columns 13a and 13b are provided as capacitor support members 12a and 12b at both ends thereof. The distance between the capacitor supporting members 12a and 12b is equal to the distance between two traveling slivers (not shown).

The sliver guide 9 is an inverted L-shaped plate-like body and is composed of a table-shaped guide surface 14 and a fixing piece 15 extending downward from the end thereof. The table-shaped guide surface 14 has an edge 16 at the sliver guide 9. The length extends to a position close to the third bottom roller 2b on the upstream side of the guide device 7. The fixing piece 15 is provided with two notches 18a and 18b extending downward from a bending line 17 between the fixing piece 15 and the table-shaped guide surface 14 to divide the fixing piece 15 into 15a, 15b and 15c. The fixed pieces 15a and 15c and the fixed piece 15b are displaced back and forth by a length of l. The length l corresponds to the thickness of the support arm 11 of the condenser bracket 8.

When the sliver guide 9 is supported by the condenser bracket 8, the fixing piece 15b is inserted between the supporting columns 13a and 13b of the supporting arm 11, and the supporting arm 11 is fixed by the fixing pieces 15b and 15a and 15c. Hold in. At this time, the length L of the recess 19 of the table-shaped guide surface 14 is equal to the length measured outside the columns 13a and 13b, and the sliver guide 9 is laterally moved due to the relationship between the columns 13a and 13b and the recess 19. It is fixed without moving.

The capacitor 10 is made of a plate-like body, and is provided with a funnel-shaped slope 20 and a yarn guide groove 21 following it in the center, and the periphery of the yarn guide groove 21 has a narrow sliver advancing direction in plan view. It is a character-shaped guide surface 22. Bending and holding pieces 23a and 23b are provided at both ends of the capacitor 10. Both the bent holding pieces 23a and 23b are supported and fixed to the column 11 of the capacitor bracket 8 by being fitted to the columns 13a and 13b of the capacitor support members 12a and 12b, respectively.

At the time of drafting, some of the constituent fibers of the sliver S that have passed through the third roller pair 2 are urged in the direction of turning downward as the third bottom roller 2b rotates, but Since the edge 16 is located close to the third bottom roller 2b, the fibers are guided by the table-shaped guide surface 14 and proceed without being released from the sliver S. Then, the V-shaped guide surface 22 of the condenser 10 guides the groove 21 into the yarn guide inner groove 21 to reach the second roller pair 4.

When the fiber length of the fibers forming the sliver S is changed, the distance between the draft roller pairs is changed, and the thickness of the sliver S is changed, the sliver guide 9 is simply moved from the condenser bracket 8. Then, the capacitor 10 is taken out, and the sliver guide 9, the capacitor 10, etc. adapted to the newly changed sliver are inserted into the capacitor support members 12a, 12b of the capacitor bracket 8 and fixed.

[0016]

[Effect of device]

 In the sliver guide device of the present invention, a sliver guide made of a plate is attached to the condenser bracket so that one side of the sliver guide approaches a draft roller located upstream of the condenser bracket to form a guide surface. Further, since a plate-shaped capacitor is removably installed on the capacitor bracket, the sliver that has passed through the draft roller is guided by the guide surface, and the constituent fibers are released from the sliver to release the draft. The situation of being wrapped around the roller is prevented. Since both the sliver guide and the capacitor are made of sheet metal, they have a characteristic that they are inexpensive and can easily be changed in shape. In addition, since the sliver guide is used together with the condenser due to the condenser bracket, more stable draft is possible. Further, although the sliver guide and the condenser are provided at the same position, they are separated from each other, and the parts can be replaced only by the sliver guide when the pitch between the rollers is changed.

[Brief description of drawings]

1 shows a sliver guide device of the present invention, where A is a schematic side view, B is a perspective view of a condenser bracket, C is a front view of the condenser, D is the same plan view, and E is a condenser bracket with a sliver guide and a condenser. FIG. 3 is a perspective view of a fixed state.

FIG. 2 is a perspective view of a sliver guide of the sliver guide device of the present invention.

FIG. 3 is a perspective view showing a conventional device, in which A and B are capacitors and C is a capacitor bracket, respectively.

[Explanation of symbols]

 2b Third bottom roller 8 Condenser bracket 9 Sliver guide 10 Condenser 14 Table-shaped guide surface 15 Fixing piece S Sliver

Claims (1)

[Scope of utility model registration request] 1. A sliver guide made of a plate-like member is attached to a condenser bracket, so that one side of the sliver guide approaches a draft roller located on the upstream side of the condenser bracket to form a guide surface. A sliver guide device in which a plate-shaped capacitor is detachably installed on the capacitor bracket.