JPS644850Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a carding machine brake device suitable for preventing damage to the metallic wire of the cylinder and the carding machine. is applied to carding machines which are held by ball bearings.

Prior Art In a carding machine using a dandy lever, the carding machine is stopped when an abnormality in the operating condition is detected by releasing the latching of the dandy lever by the L-shaped lever catch by the action of a stop motion. However, this was done by lowering the gear attached to the dandy lever around the spindle of the dandy lever and interrupting gear transmission from the gear inlet.

However, with this stopping method, as the dolpher is rotated at high speed and its inertia increases, or as it is held in a ball bearing with a small dynamic friction coefficient and the braking action is reduced, the stop motion is applied and then it is not completely stopped. The angle of rotation of the dolpher until it reaches the end becomes larger. For this reason, when the web wound up on the upper part of the dolpher is moved toward the cylinder, it pushes the front bottom sheet and damages the cylinder and the metallic wire of the dolpher.

The pulley attached to one of the shafts of the gear series meshes with the gear of the dofu shaft, which is rotating due to inertia after the stop motion is applied.
If you try to stop the dotsfuer suddenly by applying an external force with the band brake or electromagnetic brake,
The inertial force of the gear acts on the boss of the gear, which is attached to the gear shaft via a tapered bushing with an adjusted tightening force, and disturbs the adjusted state, so the gear tightening force must be adjusted repeatedly. It takes a lot of effort to make adjustments.

Problems to be Solved This invention was made in view of the above-mentioned circumstances, and when the dolpher is rotated at high speed or held by a ball bearing and the moment of inertia after stop motion increases, the dolpher The rotation angle increases until the web is completely stopped, lifting the web and preventing damage to the cylinder and the metal wire of the dolpher. This reduces the amount of effort required for adjustment by not disturbing the tightening force of the gear.

Means for Solving the Problems In this invention, in order to solve the above-mentioned problem, a
A brake lining is provided, one end of which is fixed to the frame and the other end of which is connected to a connecting member, and a thin elastic metal strip is fixed to the outer surface of the brake lining, and the connecting member is provided with a power transmission. It is connected to a tensioning means that is operated in conjunction with the release.

As the tensioning means, a dandy lever whose tip is lowered by releasing the transmission of the doffor, a solenoid, or the like is used.

Function When you want to stop the rotation of the carding machine when the carding machine is in operation, release the L-shaped lever catch that locks the dandy lever manually or automatically by the action of the stop motion. The dandy lever rotates by a predetermined angle around a support shaft and lowers its tip. Due to this lowering, the dandy lever connected to the connecting member pulls the brake lining, so that the brake lining pulls the outer circumferential surface of the pulley fixed to the dofu shaft on the opposite side to where the dofufu drive transmission means is attached. Press the button to immediately stop the dolpher from rotating due to inertia.

On carding machines where the dandy lever is fixed or not in use, the clutch attached to the carding shaft is disengaged manually or by the action of a stop motion, and the brake is activated by a solenoid mounted on the frame. The lining is pulled and the rotation of the dower is immediately stopped as in the previous case.

Embodiment FIGS. 1 to 4 show an embodiment of the present invention, in which the dolphin 1 is placed on the side A where the dolphin drive transmission means (not shown) is attached and on the opposite side B. A pulley 3 with a diameter of, for example, about 12" is fixed to the shaft 2. One end of the pulley 3 is fixed to the card frame 5 with a bracket 6 with a gap l on its outer periphery, and the other end is fixed with a wire, rope, or link. A flexible brake lining 4 is provided which is connected to a coupling member 7 such as a motion.

A thin metal strip 8 such as an elastic steel plate is fixed to the outer periphery of the brake lining 4 in order to separate the inner surface of the brake lining 4 from the outer surface of the pulley 3 when no tensile force is applied. The surrounding area of the pulley 3 and the brake lining 4 are as follows:
A safety cover 9 having a viewing window 10 on the side wall is held on the frame 5 by a support member 11, and the safety cover 9 is located outside the brake lining 4.
A required number of screws 13 are screwed into the arcuate peripheral surface 12 at intervals. A nut 14 is screwed onto the screw 13, and the nut 14 serves to fix the screw 13 to the arcuate circumferential surface 12. Therefore, the gap l between the pulley 3 and the brake lining 4 in the circumferential direction is such that, while looking through the viewing window 10, each screw 13 is By advancing the screws 13 by the same length and fixing them with the nuts 14, the screws 13 are uniformly adjusted to a predetermined value (for example, about 2 mm).

The connecting member 7 has one end connected to the brake lining 4 through a turnbuckle 15 so that its length can be adjusted, and the other end turned downward by the first guide 16 and connected to the card frame on the opposite side from the second guide 17. 5a through the third guide 18,
It is connected to a bracket 22 fixed to a link 21 that connects the mold lever 19 and the tip of a dandy lever 20 whose one end is pivotally supported on a support shaft (not shown). The L-shaped lever 19 has a bent portion pivoted to the frame 5a by a support shaft 23, and has a handle 19 at the upper end.
A catch 25 is pivotally mounted on the a side to receive the clockwise rotational moment applied by the dandy lever 20 by engaging with a locking member 24 fixed to the frame 5a. A stopper 26 serves to restrict the vertical movement of the tip of the dandy lever 20.

In the apparatus configured as described above, when it is desired to stop the carding machine 1 during operation, the catch 25 is turned off manually or by the action of a stop motion (not shown) that detects an abnormality in the operating state. If the engagement with the locking member 24 is released by rotating it slightly clockwise, the L-shaped lever 19 will be moved from the position shown by the solid line to the position shown by the imaginary line via the link 21 due to the lowering of the tip of the dandy lever 20 due to its own weight. is moved to the position shown.

When the link 21 moves downward due to disengagement of the catch 25, the bracket 22 fixed to the link 21
The connecting member 7, which is connected at one end to the pulley 3, pulls the brake lining 4 and presses the outer peripheral surface of the pulley 3. Therefore, the connecting member 7, which is integrally connected to the pulley 3 by the shaft 2, is moved when the dandy lever 20 is lowered. Therefore, when the gear transmission is released, the rotation is immediately stopped. Therefore, it is possible to eliminate the problem of the web being moved to the cylinder side when the doffer 1 is stopped and damaging the metallic wires between the doffer 1 and the cylinder.

Furthermore, the doffer 1 is stopped not by a band brake or an electromagnetic brake provided on the drive transmission side, but by a pulley 3 fixed to the shaft 2 of the doffer 1 on the opposite side. The drive transmission means fitted onto the shaft 2 of the shaft 2 via the tapered bushing is no longer subjected to the inertial force of the shaft 1, and there is no fear that the adjusted tightening force will be disturbed.

FIG. 5 shows another embodiment of this invention, in which the connecting member 7 engages a clutch (not shown) mounted in a transmission means for driving the dolphin by means of a solenoid 27 held in the frame 5. This is the case when the tension is applied in conjunction with the release of the connection.

In this case, the solenoid 2 is controlled manually or by a stop motion that detects an abnormality in the operating condition.
By operating 7, the same embodiment effects as described for the previous embodiment can be obtained.

Effects This invention uses a brake lining installed through a gap around the outer periphery of a pulley fixed to the shaft of the shaft on the opposite side to where the transmission means for driving the shaft is installed, when the drive of the shaft is released. Since the wire is pulled in conjunction with the pulley's outer circumferential surface, it is possible to reduce the rotation angle due to inertia when the doffer stops, and prevent damage to the metallic wire due to lifting of the doffer's web. Therefore, it is possible to eliminate disturbances in the adjustment of the attachment portion between the shaft of the doffer and the drive transmission means.

[Brief explanation of drawings]

Figure 1 is a front view of one embodiment of this invention, Figure 2 is an enlarged front view of the same main part, Figure 3 is a right side view of Figure 1,
FIG. 4 is a rear view of the main part of FIG. 1, and FIG. 5 is a front view of another embodiment. 1...Dotshua, 2...Shaft, 3...Pulley,
4... Brake lining, 5... Frame, 7
...Connection member, 8...Metal strip piece, 20, 27...
...Tension means.

Claims (1)

[Claims for Utility Model Registration] (1) On the outer periphery of a pulley provided on the shaft of the shaft opposite to where the transmission means for driving the shaft is attached, one end is fixed to the frame and the other end is connected to the connecting member. A combined brake lining is disposed, a resilient metal strip is fixed to the outer surface of the brake lining, and a tensioning member is operated in conjunction with the release of the transmission of the dowel to the connecting member. A carding brake device for a carding machine, characterized in that means are connected. (2) The dot fur brake device for a carding machine according to claim 1, wherein the tensioning means is a dandy lever whose tip is lowered when the dot fur is released from transmission. (3) The carding machine brake device according to claim 1, wherein the tensioning means is a solenoid.