JPS60139823A - Flat bar for carding machine - Google Patents

Abstract

PURPOSE:To make it possible to prolong the life of a flat bar of high quality and carry out improved carding operation with a high accuracy, by forming the flat bar divided into a flat bar body and exchangeable abrasion-resistant bar end parts right and left. CONSTITUTION:A flat bar divided into a flat bar body 10 and bar end parts 11 right and left. The flat bar body 10 is constituted of a top card clothing mounting surface 12, an inverted T-shaped rib 13 protruding above the top card clothing mounting surface 12 and a clip surface 14 at the side of a flat plate. The rib 13 at both ends is formed to protrude from the card clothing mounting surface 12 and bring the end surface 16 into close contact with a knob 15 of a bar end part 11. Protruding parts 17 of the rib 13 are provided with screw holes 20 for fixing the rib 13 with screws engaged with screw holes 19 provided at the joining part 18 of the flat plate. Each bar end part 11 is provided with a plane block sliding surface 21, toe 22 and sliding surface for a heel 23 on one of the longitudinal direction with the nozzle 15 as a center and joining part 18 of the flat plate for superposing and mounting the protruding parts 17 of the body 10.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the flat rug of a carding machine.

Conventionally, flat bars have ribs (2) as shown in Figure 1
), the clip surface (3) and the top clothing tension surface (4)
) consists of the top needle upholstery section and knob (6),
It is formed by machine-finishing an integrally cast product consisting of both bar end portions of the flat screw (6) and the plain block sliding surface (7) -+81 and the heel (9) sliding surface. The tension between the bar ends is achieved by the top clothing being tensioned on the surface, and the carding effect is better as the clearance gauge between the top clothing and both needles of the cylinder is narrower. In order to secure the gauge, it goes without saying that the accuracy of the needle tip of the cylinder must be improved, and in the case of top clothing, the top tensioning surface must have good flatness.

The clearance gauge between the top and cylinder clothing is adjusted by placing the bar end of the flat bar on the flexible pen and bending the flexible pen. For this reason, the relationship between the top attachment surface and the bend sliding surface at the bar end is Unless the variation in dimensions is reduced, the approximately 100 flat bar filters will not work effectively.

When carding, the flat bar is subjected to a force due to the carding action of pulling it in the direction of the cylinder and a bending load due to its own weight, and it must be able to withstand this. There is a limit to how long it can stand, so cast iron with an approximately inverted T-shaped cross section is generally used.

Cast iron requires drying treatment to prevent changes over time due to casting stress, and it is difficult to obtain high precision with only machining finishing, so manual correction processes are required, requiring a high level of skill. It is becoming increasingly desirable to obtain high-quality flat bars at low prices.

In addition, even if such a high quality 7:17 carding bar is used, the flat bar can be used as a rotating flat on the cylinder of the carding machine. At this time, the flat bar shown in Figure 1 (b) sliding on the 7 flexible pend is rotated by the tin rocket that rotates the heel (9) and the heel (9) in Figure 1 (a). Since the knob (5) that engages with the sprocket and the sliding surface (7) of the plain block that contacts the rotating disk are constantly sliding and rotating, there is a problem of wear on these sliding surfaces. If the sliding surface of the bar end becomes worn, a new sliding surface must be formed by machining, but after several machining operations, the wall thickness will be reduced and the bending load mentioned above can be safely handled. There are various drawbacks such as the flat bar becomes unacceptable and the flat bar becomes unusable.

The present invention has been made in order to solve the above-mentioned drawbacks, and the present invention has been made to extend the length of a high-quality 7-rat bar by dividing the flat bar into a 7-rat bar body and replaceable wear-resistant left and right bar ends. To provide a flat bar for a carding machine that has a long service life and can perform an excellent carding action with high accuracy.

An embodiment of the present invention will be described below based on the drawings.

As shown in Figure 2, 72 pieces are combined into 7 pieces per body (
The flat bar body (B) is a flat plate made to correspond to the specified width of the carding machine.The top needle cloth is attached to the surface (11 and its The lip (131) that protrudes from the top and forms an inverted T-shape, and the rib θ' at both ends that protrudes from the clip surface 04 of the flat plate side surface (1'4), and the rib θ' at both ends protrudes from the surface (1'4) of the bar end. The end face (till) is formed in close contact with the knob (I6),
Furthermore, a screw hole is provided in the protruding part (1η) of the lip (181) so that it can be fixed with the four screws provided at the joint part 01 of the flat plate of the bar end part.Also, the bar end part knob 146) A plain block sliding surface @ phantom, toe (goods), heel (2) sliding surface on one side in the longitudinal direction centering on , and a protrusion part 01 of the split flat bar integral type on the other side. A replacement block is formed by providing a joint part of 6 m.The main body of the flat bar and the bar end part formed in this way are divided into 8 parts, and the protruding part of the lip and the joint part of the flat plate are overlapped, and fixed with screws. to form a flat bar for a carding machine.

Alternatively, the mating surface can be fitted and fixed as a dovetail groove instead of being fixed with the screws mentioned above. In addition to cast iron, the bar end portion can also be made of a wear-resistant material such as steel, powder alloy, cemented carbide, or ceramic.

Since the present invention is constructed as described above, the bar end portion of the flat bar, which is subject to severe wear, can be easily replaced depending on its lifespan, so that the flat bar can be used permanently. In addition, since parts 1 can be manufactured in separate parts, processing becomes easier, and instead of the flat body being made by Ti casting, it is also possible to cold draw iron or carbon steel. This invention has the unique effect of being able to obtain high-precision products as is without the need for machining.

[Brief explanation of the drawing]

Figures 1 (a) and (b) are a partially omitted perspective view and a partially enlarged view of the toe and heel portion of a conventional 7-rat bar, respectively, and Figure 2 is a flat bar for carding machine according to an embodiment of the present invention. FIG. 3 is an exploded perspective view. River...Top needle upholstered part, (2)...Rep, (
3)...Clip surface, (4)...Tensioned surface, (6
)...Knob, (6)...Flat screw, +7
1... Plain block sliding surface, (8)... Toe,
(9)...heel,'! −Flat pad body, concave...
・Par end part, (I″iJ... tensioned surface, θ bu・
・・・Rip, 641...Clip surface, (Io...Knob, H...End face, Oη...Rip protrusion, (+@...
・Joint part, on@...screw hole, edge...plain block sliding surface, (ro)...toe, (2)...heel, (Foundation)...screw Figure 1 (rono)

Claims (1)

[Claims] Divide the flat bar into a flat bar main body consisting of a face and a clip surface with needle cloth tensioning, and a replacement block consisting of the left and right bar ends with knobs, plain blocks, toe heel sliding surfaces, and joints, and replace both. A flat bar for a carding machine, characterized in that it is integrally fixed by bolts, dovetail fitting, etc.