JPH0510481U - Draft device - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate the exchange of apron bands in the draft part of draft equipment. A bearing house mounting hole 7 for fixing a bottom roller bearing house 6 to the side plates 4 and 4 of a bottom roller support member 3 that supports a bottom roller 2 between two parallel side plates 4 and 4, and A vertical slit 20 extending from the bearing house mounting hole 7 to at least one of the upper edge 21 and the lower edge 25 of the side plate is provided. Further, a bayonet fixing means 8 is adopted as a means for fixing the bearing house to the bearing house mounting hole 7 and the bearing house 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention facilitates replacement of the apron used for the draft part of the spinning device. It also relates to a draft device.

[0002]

[Prior art]

  In a spinning machine, a plurality of pairs of draft rolls with different rotation speeds are installed side by side. The apron, which is hung on the middle roll in the soft part, is made of thin rubber. Because it runs at high speed while holding the fiber bundle in the raft, it has a surface property when used for several weeks. The shape and physical properties change and the initial performance is not exhibited, and eventually cracks and scratches occur. Even before it reaches the end of its life, it can be damaged due to problems in other parts of the spinning machine. I may receive. Therefore, changing the apron is quite frequent from the viewpoint of the spinning machine as a whole. This is the work to be performed.

[0003]   In addition, the conventional bottom roller is a single bottom roller that is installed in the machine longitudinal direction and is common to all weights. It was provided on the muller shaft, but it was driven independently for each spinning unit. Draft parts are now being used. With this device, the bottom low The la is a plate-shaped body having an inverted U-shaped cross section with an open upper part, for example. It is supported by a muller support member. Therefore, it is possible to replace the top apron. The replacement of the bottom apron between the narrow bottom roller support members is extremely complicated. It was work. In other words, when trying to replace the apron, The bearing housing of the bottom roller that has been After removing the bearing housing from the side plate of the roller support member, and then removing the bearing house. Carefully pull out the bottom roller from the side plate opening and then replace the apron. It was necessary to work for a long time.

[0004]

[Problems to be solved by the device]

  In view of the above-mentioned points in the conventional drafting device, the purpose of the present invention is to provide a bottom opening device. To provide a drafting device that can replace the ron more easily and in a shorter time Especially.

[0005]

[Means for Solving the Problems]

  Of the bottom roller support member that supports the bottom roller between two parallel side plates , Mounting the bearing house to fix the bearing house for the bottom roller to the side plate Holes and vertical slits that reach the upper edge of the side plate from the bearing house mounting hole It was In addition, the bearing housing mounting hole and the bearing housing The bayonet fixing means was adopted as the means for fixing the uss.

[0006]

[Action]

  When exchanging the bottom apron of the draft device according to the present invention, first, the bottom apron is replaced. The bottom house is the bearing house that supports the bottom roller with the pron. Remove from support member. That is, if the bearing house fixing means is a bayonet, Simply rotate the bearing house in the removal direction and then pull it Can be removed from the side plate of the bottom roller support member. And bearing house And the vertical direction that extends upward from the bearing house mounting hole after removing the Remove the old apron from the bottom roller while passing through the groove. Then a new ep Ron is applied to the bottom roller while passing through the vertical groove in the opposite direction to the specified tension. To do.

[0007]

【Example】

  In the embodiment shown in FIG. 1, the bottom roller on which the bottom apron 1 is bridged 2 is an inverted U-shape with the top open, along with other bottom rollers that make up the draft device Is supported by a bearing 5 on a side plate 4 of a supporting member 3 made of a plate having a cross section of However, the bearing housing of the present invention is attached to the bearing 5 that supports one side of the bottom roller 2. This shows an example using the space 6. The bearing 5 is a bearing how that accommodates it. It is fixed to the side plate 4 through the spacer 6, and the bearing on the left side and the non-driving side in FIG. The house 6 has a bayonet at the bearing house mounting hole 7 formed in the side plate 4. It is fixed by the fixing means 8. The bottom apron 1 is a table as shown in Figs. It is bridged in a state in which it is stretched between the sensor cover 9 and the bottom roller 2. Tensaba -9 is fixed by a screw 11 to a mounting plate 10 which extends inward from the side plate 4.

[0008]   The bayonet fixing means 8 will be described below. Bearing house 6 mounting circumference The side structure is shown enlarged in FIGS. Bearing house 6 is a bearing 5 has a cylindrical shape with an inner diameter that allows close fitting, and one surface of which is closed by a lid 12. However, two protrusions 14 extending in the normal direction are provided at two edge portions of the open side 13. on the other hand, The bearing house mounting hole 7 of the side plate 4 is far larger than the outer diameter of the bearing house 6. It has a very large inner diameter, and the protrusions 14 can pass through two locations on its circumference. Notch 15 is provided, and the bearing surface is provided on the inner surface of the side plate 4 so as to close the notch 15. The protrusion 14 of the bearing house 6 inserted along the edge of the mounting hole 7 can be swung. And a gap 16 that is slightly wider than the thickness of the protrusion 14 is formed between the side plate 4 and The arc-shaped plate 17 is fixed. The innermost part 18 of the gap 16 has the protrusion 14 It is narrowed so that it can be firmly held. Therefore, the bearing house 6 14 was inserted into the bearing house mounting hole 7 from the outside of the side plate 4 in line with the notch 15. Then, the protrusion 14 passes through the gap 16 formed by the side plate 4 and the arc-shaped plate 17 When it is rotated until it reaches the stopper 19 at the innermost portion 18 of the gap 16, the protrusion 14 and the side plate 4 form a circle. It is held by the arc-shaped plate 17 and fixed to the side plate 4.

[0009]   The side plate 4 is further directed upward from the bearing house mounting hole 7 to the top roller. A longitudinal slit 20 is cut down to the upper edge 21 of the side plate 4. The vertical slit 20 The width is such that two pron 1 can be passed in a stacked state. Also, The thickness of the peripheral wall 22 of the alling house 6 is an apron so that the apron 1 can be removed. It is thicker than the thick one.

[0010]   When replacing the bottom apron 1 of this draft device, a clay not shown Separated the top roller (not shown) from the bottom roller 2 by raising the dollar. After that, first, the protrusion 14 of the bearing house 6 of the bottom roller 2 is separated from the stopper 19. Then, the inside of the gap 16 was rotated toward the notch 15, and the protrusion 14 was moved to the position of the notch 15. From the state (state of FIG. 1 and FIG. 2), pull outward to the bearing from the side plate 4. Pull out the house 6. Next, the tens bar 9 can be removed to remove the apron 1. State, pull up the apron 1 as shown in FIG. The outer edge 22 of the bearing house mounting hole formed after removal and the bearing 5 The bottom roller 2 is passed while passing through the gap 24 between the peripheral surface 23 and the longitudinal slit 20. By moving the apron 1 to the bottom roller support member 3 Pull out. After that, the reverse operation of the above removal process is performed, that is, the gap 24 and the vertical direction. Feed the new apron 1 into the bottom roller support member 3 through the slit 20. 1 and 2 as shown in FIG. It is fixed by turning in the direction of the measuring needle until the projection 14 contacts the stopper 19. afterwards , If the tensioner 9 is set and a predetermined tension with the bottom roller 2 is set, The exchange of the pron is completed.

[0011]   In the above embodiment, the bearing house 6 is fixed by the bayonet fixing means 8. However, even if it is fixed by a screw, the bearing house 6 Replacing the apron can be done in exactly the same way as above, just with different attachment / detachment operations. . In addition, the vertical slit 20 is directed downward so that the lower edge 25 of the side plate 4 is cut. Alternatively, it may be provided in both upper and lower directions.

[0012]

[Effect of device]

  As described above, the present invention supports the bottom roller support member on the side plate portion of the bottom roller support member. For fixing the bearing house for the vehicle and reaching the upper edge of the side plate portion from the through hole Since there is a slit, the bearing house can be installed without removing the bottom roller. You can replace the apron just by removing it, and the time required to replace the apron Is significantly shortened. Especially, as a means to fix the bearing house, The one that adopts the automatic fixing means requires less time to install and remove the bearing house. Ron exchange can be performed more easily.

[Brief description of drawings]

FIG. 1 is a plan view showing a main part of an embodiment of the present invention in a partially cut state.

FIG. 2 is a side view of the bearing house supporting portion as viewed from the inside of the supporting portion.

FIG. 3 is a side view of the side plate with the bearing house removed, as viewed from the outside.

FIG. 4 is a vertical sectional view of a bearing house.

FIG. 5 is a sectional view of an arc-shaped plate portion.

FIG. 6 is a side view of a bearing house.

FIG. 7 is a side view showing a state in which the tensa bar and the bearing house are removed, and the apron is taken out from the longitudinal slit and the gap between the outer peripheral surfaces of the bearing.

[Explanation of symbols]

2 Bottom roller 3 Bottom roller support member 4 side plates 6 bearing house 7 Bearing house mounting hole 8 Bayonet fixing means 14 protrusion 15 notches 16 gap 17 Arc plate 20 Vertical slit

Claims (2)

[Scope of utility model registration request] 1. A bottom roller support member for supporting a bottom roller between two parallel side plates, a bearing house mounting hole for fixing a bottom roller bearing house to the side plate, and a bearing house mounting hole on the side plate. A draft device comprising a longitudinal slit reaching at least one of an edge and a lower edge. 2. A through hole for fixing a bearing house for a bottom roller for driving an apron to a side plate portion of a bottom roller supporting member supporting a bottom roller between two parallel side plates, and a through hole. A draft device comprising slits reaching at least one of an upper edge and a lower edge of a side plate, and bayonet fixing means as means for fixing a bearing house in the through hole.