JPH0546972U - Spinning dust prevention device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a fly dust accumulation preventing device that does not require periodic cleaning of the cover that covers the spindle drive unit. [Structure] On the spindle rail 1, a cover that covers a spindle wave 2a, a tangential belt 3 and a contact roller 4 that constitute a spindle drive unit is arranged so as to extend along the spindle rail 1. The cover is composed of a front cover 8 and a top cover 9. An opening 10 extending along the spindle rail 1 is formed between the top cover 9 and the spindle rail 1. A plurality of ventilation holes 13 are formed in the front cover 8 at predetermined positions corresponding to the respective spindles 2. The vent hole 13 is formed in a size that does not allow the fingertip to enter.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for preventing dust accumulation in a spinning machine such as a ring spinning machine and a ring twisting machine. More specifically, it relates to the accumulation of cotton dust in the cover that covers the spindle drive section of a spinning machine that employs the tangential belt drive system. The present invention relates to a device for preventing fly dust accumulation.

[0002]

[Prior Art]

 Conventionally, as a spindle driving method for a spinning machine such as a ring spinning machine and a ring twisting machine, there is a so-called tangential belt belt driving method in which a driving belt common to a plurality of weights or all weights is pressed against the spindle to drive the spindle to rotate. .. As shown in FIG. 9, in the spinning machine base adopting this drive system, the spindles 32 are arranged in rows on a spindle rail 31 extending along the longitudinal direction of the spinning machine base (direction perpendicular to the paper surface of FIG. 9). An endless tangential belt 33 is provided in a state of being wound around a guide pulley and a drive pulley (not shown) so as to travel along the longitudinal direction of the spinning machine stand while being in contact with the spindle wave 32a. It Further, on the spindle rail 31, contact rollers 34 for pressing the tangential belt 33 toward the spindle 32 side are arranged at predetermined intervals in order to ensure a contact pressure between the spindle wobble 32a and the tangential belt 33. There is.

A cover that covers the spindle wave 32 a, the tangential belt 33, and the contact roller 34, which constitute a spindle drive unit, for the purpose of preventing noise during running of the tangential belt 33, preventing the accumulation of fly dust, and the like. 35 are provided.

In Japanese Utility Model Publication No. 52-31791, a box-shaped spindle rail and a cover form a closed chamber that covers the spindle drive unit, and a cotton wool trap is provided in the closed chamber. A device provided with a shielding plate that actively guides cotton has been proposed.

[0005]

[Problems to be solved by the device]

 In the conventional device in which the cover 35 is provided so as to seal the spindle drive unit, the inside of the cover 35 becomes negative pressure due to the traveling of the tangential belt 33 and the accompanying rotation of the spindle 32 and the contact roller 34, and the seal member is provided. However, it is difficult to completely prevent dust and minute dust from entering the cover 35. Then, the fly flies that have once entered the cover cannot escape to the outside of the cover, and accumulate in the cover 35. When the amount of fly waste that has entered the cover 35 increases, the fly waste may get caught between the spindle wave 32a or the contact roller 34 and the tangential belt 33, or between the contact roller 34 and the roller holder (not shown). , The spindle 32 may enter the socket 32b. Then, when the fly fluff penetrates between the spindle wave 32a or the contact roller 34 and the tangential belt 33, an appropriate contact pressure between the spindle warb 32a and the tangential belt 33 cannot be obtained, resulting in energy loss. Invite. Further, if the cotton wool bites between the contact roller 34 and the roller holder, energy loss and damage to the contact roller 34 may occur. Further, when the fly dust enters the socket 32b of the spindle 32, the lubricant oil in the socket 32b is absorbed by the fly dust, which hinders the smooth rotation of the spindle 32 and shortens the maintenance cycle for lubricating oil supply. There is a problem of becoming. Therefore, it is necessary to open the cover 35 regularly and clean the inside of the cover.

When the spinning raw material is cotton, even if the cotton wool bites between the contact roller 34 and the roller holder, the cotton wool is torn apart as the contact roller 34 rotates, so that the contact roller 34 is damaged. Will not be invited. However, when the spinning raw material is synthetic fiber, the fiber strength is stronger than that of cotton. Therefore, if the amount of fly cotton that digs between the contact roller 34 and the roller holder is large, the cotton wool will not be broken and the contact will be broken. The roller 34 is damaged. Therefore, the cleaning cycle of the inside of the cover 35 is 1.5 to 2 months in the case of cotton spinning, whereas it is considerably shorter than that in the case of synthetic fiber and about 2 weeks.

Further, in the device disclosed in Japanese Utility Model Publication No. 52-31791, the fly dust that has entered the closed chamber is guided to the fly dust collecting portion without accumulating on the spindle drive portion, but it is also regularly cleaned. Is required. Then, in order to extend the cleaning cycle, there is a problem that the entire closed chamber including the dust collecting part must be enlarged.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a dust collecting device for a spinning machine that does not require periodic cleaning of the cover that covers the spindle drive unit. Especially.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, according to the present invention, a cover for covering the spindle driving unit is provided so as to extend along the spindle rail, and openings are provided on the front side and the rear side of the spindle row of the cover.

The opening provided on the front side of the cover is preferably provided as a plurality of holes at predetermined positions corresponding to the respective spindles. The diameter of the hole is preferably 15 mm or less so that the finger cannot be inserted.

[0011]

[Action]

 As the tangential belt travels, the spindle and contact rollers rotate, and the pressure around them is about to become negative. However, since the openings are formed on the front and rear sides of the cover, the outside air is sufficiently taken into the cover from the openings, and the negative pressure does not become so large. Therefore, as compared with the conventional cover in which the opening is not formed, the speed of the airflow toward the inside of the cover becomes slower, and the amount of fly and fine dust sent into the cover is reduced. In addition, the fly dust that has once entered the cover is often discharged to the outside again due to the action of the accompanying air flow accompanying the traveling of the tangential belt. Will not be deposited.

If the opening formed on the front side of the cover is a hole with a diameter of 15 mm or less, which is a size that does not allow the operator's fingertip to enter, the operator will not accidentally insert the fingertip into the hole. It's safe.

[0013]

【Example】

 (Embodiment 1) Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS. On a spindle rail 1 extending along the longitudinal direction of the spinning machine stand, spindles 2 are arranged in a row at fixed pitches. An endless tangential belt 3 that drives the spindle 2 is wound between a drive pulley and a guide pulley (neither is shown) while traveling in a tangential direction with respect to the spindle warb 2a. Inside the tangential belt 3, contact rollers 4 for ensuring a contact pressure between the tangential belt 3 and the spindle wave 2a are arranged at predetermined intervals. As shown in FIG. 3, roller holders 5 supporting the contact rollers 4 are fixed to both ends of a leaf spring 7 whose center is fixed to a support bracket 6. The contact roller 4 presses the tangential belt 3 toward the spindle wave 2a with a predetermined pressure by the urging force of the leaf spring 7.

On the spindle rail 1, a cover for covering the spindle drive portion is arranged so as to extend along the spindle rail 1. The spindle drive unit is composed of a spindle warb 2a, a tangential belt 3, a contact roller 4, and the like. The cover is composed of a front cover 8 arranged on the front side of the spindle rail 1 (on the left side in FIG. 1) and a top cover 9 arranged above the spindle rail 1 and having an inverted L-shaped cross section. ing. The top cover 9 is bent rearward from the rear end of the spindle rail 1, and the lower end thereof hangs down to a height corresponding to the upper surface of the spindle rail 1. That is, an opening 10 extending along the spindle rail 1 is formed between the top cover 9 and the rear end of the spindle rail 1. The top cover 9 is attached to a frame (not shown).

A latching member 1a is fixed to the spindle rail 1 at a predetermined position, a latching piece 8a protruding from the lower end of the front cover 8 is latched to the latching member 1a, and an upper end of the front cover 8 is a top cover 9. It is detachably fixed to the spindle rail 1 in a state of overlapping with the tip of the. Unlike the prior art, no seal member is provided in the overlapping portion or the like. The front cover 8 is divided into lengths of about 1 m to facilitate the attachment / detachment work, and grips 11 are attached to both ends of each divided member. A knee brake 12 is attached to the front cover 8 at an interval corresponding to the spindle pitch. Further, as shown in FIG. 4, five vent holes 13 as openings are formed between the mounting positions of the knee brake 12 (three at the position corresponding to the handle 11). Each vent hole 13 is formed with a diameter of 15 mm or less, which is a size that does not allow an operator to insert a fingertip.

Next, the operation of the device configured as described above will be described. Simultaneously with the driving of the spinning frame, the tangential belt 3 is driven, and each spindle 2 is rotationally driven. As the tangential belt 3 travels, the spindle 2 and the contact roller 4 are rotated, and the pressure around them is about to become negative. However, since a large number of ventilation holes 13 are formed in the front cover 8 and the opening 10 is formed below the top cover 9, outside air is sufficiently taken into the cover through the openings 10 and the ventilation holes 13. The negative pressure does not increase so much. Therefore, as compared with the conventional cover in which the opening is not formed, the speed of the airflow toward the inside of the cover becomes slower, and the amount of fly dust and fine dust sent into the cover together with the airflow is reduced. In addition, the fly dust once inside the cover is often discharged to the outside of the cover again through the opening 10 and the ventilation hole 13 due to the action of the accompanying air flow accompanying the traveling of the tangential belt 3, and the fly dust inside the cover is often generated. Is hard to collect. Therefore, unlike the conventional method, a large amount of cotton dust will not be accumulated in the cover even without cleaning. As a result, it is possible to reliably prevent a large amount of fly waste from invading between the spindle wave 2a or the contact roller 4 and the tangential belt 3 or between the contact roller 4 and the roller holder 5, and the energy for driving the spindle is reduced. Problems that occurred with conventional equipment such as damage to the loss or contact roller are solved. Further, it is possible to surely prevent the cotton wool from entering the socket 2b of the spindle 2 and absorbing the lubricating oil in the socket 2b.

In general, a ring spinning machine and a ring twisting machine reciprocate along a machine base to blow air on each part of the machine base to prevent the cotton wool from accumulating and to drop on the floor surface. It is equipped with a so-called traveling cleaner that removes dust such as dust. When a nozzle for injecting air toward the ventilation hole 13 of the front cover 8 is provided in this traveling cleaner, a small amount of cotton wool accumulated in the cover is blown out from the nozzle to the outside of the cover by the air blown from the nozzle. Ejected, reducing the build up of cotton wool in the cover.

Further, since the front cover 8 has a large number of vent holes 13 and the opening 10 is formed below the top cover 9, the spindle drive portion is not completely sealed. However, as a result of measuring the noise, there was almost no increase in the noise as compared with the case where the opening 10 and the ventilation hole 13 were not formed.

Second Embodiment Next, a second embodiment will be described with reference to FIGS. In this embodiment, the position of the vent hole 13 formed on the front side of the cover is different from that of the previous embodiment. That is, instead of forming the ventilation holes 13 in the front cover 8, the ventilation holes 13 are formed in each knee brake 12. The ventilation holes 13 are formed as long holes, one on each side of the portion of the knee brake 12 that is pressed against the spindle wave 2a. The width of each vent hole 13 is formed smaller than the thickness of the operator's finger. With the configuration of this embodiment, the same working effect as that of the above-mentioned embodiment is exhibited.

Further, in the configuration of the above-described embodiment, the formation of the vent hole 13 requires drilling which is an additional work after the front cover 8 is molded, whereas in the configuration of this embodiment, the knee brake 12 is molded. Sometimes formed. Since the cost of forming the knee brake is substantially the same regardless of the presence or absence of the vent hole 13, the manufacturing cost is reduced as compared with the case of the above-mentioned embodiment requiring the additional work of drilling.

It should be noted that the present invention is not limited to the above-described embodiment, but the shape of the vent hole 13 formed in the front cover 8 may be changed to a circle to have an oval shape as shown in FIG. As shown in FIG. 5, a louver (cut and raised) 14 is provided as an opening instead of the ventilation hole 13, the size, shape or number of the ventilation hole 13 and the louver 14 is changed, and a ventilation hole is also formed in the top cover 9. You may. Further, the knee brake 12 may have a lever type structure. Further, the vent hole 13 formed in the front cover 8 or the knee brake 12 does not necessarily have to be formed for each spindle.

[0022]

[Effect of the device]

 As described in detail above, according to the present invention, the noise prevention effect is not reduced as compared with the cover having a closed structure, and the dust and fine dust entering the cover due to the negative pressure in the cover are prevented. The amount decreases. In addition, the fly dust once inside the cover is often discharged out of the cover again, and it is possible to reliably prevent accumulation of the fly dust inside the cover in an amount that would hinder the spindle drive section. This eliminates the need for work to remove accumulated dust, and extends the life of the contact roller and the lubricating oil supply cycle of the spindle, reducing drive energy loss. Further, unlike the conventional closed type device, it is not necessary to properly seal the seal, and the manufacturing cost is significantly reduced.

If the opening formed on the front side of the cover is a hole with a diameter of 15 mm or less that does not allow the operator's fingertip to enter, the operator may accidentally insert the fingertip in the hole. It's safe because it doesn't exist.

[Brief description of drawings]

FIG. 1 shows the arrangement of a cover of a first embodiment, (a) is a side sectional view showing a mounting state of a handle of a front cover, and (b) is a side sectional view showing a mounting state of a knee brake. .

FIG. 2 is a partial schematic plan view showing the arrangement of spindles and contact rollers.

FIG. 3 is a plan view showing a support state of a contact roller.

FIG. 4 is a partial front view of a front cover.

FIG. 5 is a partial front view of the front cover of the second embodiment.

FIG. 6 is a plan sectional view of the knee brake.

FIG. 7 is a partial front view of a front cover of a modified example.

FIG. 8 is a partial front view of a front cover according to another modification.

FIG. 9 is a side sectional view showing a conventional device.

[Explanation of symbols]

1 ... spindle rail, 2 ... spindle, 2a ... spindle warb, 3 ... tangential belt, 4 ... contact roller, 8 ... front cover, 9 ... top cover, 1
0 ... Opening part, 12 ... Knee brake, 13 ... Vent hole as opening part.

Claims (3)

[Scope of utility model registration request] 1. In a spinning machine adopting a tangential belt drive system, a cover for covering a spindle drive unit is provided in a state of extending along a spindle rail, and openings are provided on a front side and a rear side of a spindle row of the cover. Spinning dust prevention device. 2. The device according to claim 1, wherein the opening provided on the front side of the cover comprises a plurality of small holes provided at predetermined positions corresponding to the respective spindles. 3. The fly cotton accumulation prevention device according to claim 2, wherein the hole has a diameter of 15 mm or less.