JPH06507680A - How to attach card cloth to carrier cylinder - Google Patents

Abstract

There is disclosed a method of fixing card clothing (100) to the surface (108) of a carrier cylinder (107) which has a slot (109) in its outer periphery, in which the card clothing comprises an elongate strip of resilient material (101) having opposed ends (102) which abut one another when the clothing is applied around the cylinder (107), wire carding teeth (103) carried by the strip of resilient material (101) and projecting from one side thereof so as to form a substantially uniform distribution of carding teeth throughout the outer periphery of the cylinder (107), and an elongate carrier web (104) secured to the elongate strip of resilient material (101) and having opposed ends (105) which each project longitudinally beyond a respective end (102) of strip (101), and in which the method of assembly comprises: forming the card clothing (100) into a closed loop with the opposed ends (102) of the elongate strip (101) abutting each other, and the opposed ends (105) of the carrier web (104) projecting inwardly of the loop and alongside one another; fitting the opposed ends (105) of the carrier web (104) into an elongate U-shaped clip (106) which extends along at least part of the opposed ends (105); and, fitting the closed loop of card clothing onto the outer periphery (108) of the cylinder (107) following presentation of the leading end of the clip (106) to the entrance to the slot (109) in the cylinder (107) and then pushing the loop of clothing (100) onto the cylinder simultaneously with advancement of the clip (106) along the slot (109). The invention is particularly applicable to the assembly and dis-assembly of card clothing on a knitting roller (120) of a high pile fabric knitting machine.

Description

[Detailed description of the invention] The present invention relates to scraping rolls (dotsfa rolls) forming part of, for example, high-stack knitting machines. How to attach card cloth to a carrier cylinder or roll such as It also relates to a card cloth device for fastening to a carrier cylinder.

A high-stack knitting machine is usually used to transport fibers to feed thin long fibers to the knitting ends. and a rotary knitting machine with multiple carding heads constituting a feeding unit. 0 Normal knitting needles have several curls placed at intervals around the outer periphery. It is arranged independently on a cylinder that is rotatable with respect to the ding head.

The carding head is used to supply the thin long fibers to the needles of the high-layer knitting machine. at least one pair of turns, usually having a wire-coated or grooved outer periphery; A rotatable cloth feed roll, a wire-coated rotatable main cylinder, and a wire-coated rotatable main cylinder. It consists of an ear-covered rotatable doffer. The cloth feed roll is Pull the thin strips from the supply source in rope form and feed them in sheet form to the main cylinder. distribute fiber. The latter, acting as a transmission medium, supplies the fibers in turn to the needles of the knitting machine. Transporting the elongated fiber sheet to the feeding dosers, properly transporting the fibers during delivery to the needle group Therefore, the main cylinder rotates at a higher speed than the cloth feed roll, and The fur is rotated faster than the main cylinder.

When applying the cloth to the card, use a long, narrow slit in the wire-coated card cloth. It has been a long-standing practice to wrap spirally around the outer circumferential surface of a support roll.

Each end of the spirally wound piece is attached to a bolt that passes through the rim of the doffer roll. It is fixed to the rim by a tightening means such as a nut attached to the bolt.

Spiral wrapping of dolphins is a time consuming and difficult task.

No matter how carefully the wrapping is done, there are often gaps and spaces in the card cloth. This is because such defects are unavoidable in spiral winding. This is because. Furthermore, when winding long pieces of card cloth in a spiral, If I~, the spiral deviates from the true helix and, as a result, it becomes less desirable when high-volume knitted fabrics are knitted. Create blank lines and shadows. Such lines and shadows reduce the quality of the knitted fabric.

Another disadvantage of existing card cloths is that the roller surface must first be covered with protective tape. The base of the card cloth tooth that leaks into the hem of the cloth when it is not covered. The roll surface tends to develop burrs and dents over a period of time.

Applying protective tape is an additional step when applying card cloth to dotsfer rolls. This results in additional labor costs and also reduces the cost of making the card cloth This is the source of possible drawbacks when applied to a role.

Therefore, the present invention provides a carrier cylinder or roll, such as a tonfa roll. A single strip of card cloth with a planar rectangular shape is placed on the wall. The ends of the strips are placed adjacent to each other and the wire covering cloth is placed approximately evenly on the outer circumference of the cylinder. Card cloth folds can be applied around the cylinder to form a uniform distribution. - with a view to providing improved means for mounting strips; be.

According to one aspect of the present invention, a carrier cylinder having a slot (groove) on the outer peripheral surface. A method of attaching card cloth to a surface is provided. Such a card cross.

Elastic with opposing ends that touch each other when the cloth is applied around the cylinder a strip of elastic material supported by the strip of elastic material and the outer periphery of the cylinder; protruding from one side to form a uniform distribution of curling and carding teeth over the entire surface. a wire carding tooth that extends and is secured to and attached to said strip of elastic material; an elongated carrier web having an opposing end projecting longitudinally beyond each end of the elongate strip; It is something to be prepared for. Then, in this method, the card cloth is forming a closed loop with opposing ends of the carrier web in contact with each other; protruding inside the loop in parallel with each other; The opposing end of the carrier web is defined by an elongated U extending along at least a portion of the opposing end. Attaching to a letter-shaped clip; Attach a closed loop of card cloth to the outer circumference of the cylinder and insert it into the slot of the cylinder. and the advancement of the clip along the slot. At the same time, the cross loop is pressed against the cylinder.

During the installation of the card cloth into the cylinder, the clip slides along the slot. , the mounting between the opposing wall of the slot and the opposing rim of the clip is a sliding mutual providing engagement and extending by the clip to the opposite end of the carrier web. To further tighten the grip, the rims of the clip have inner edges pointing toward each other. It tends to exert a force in the opposite direction. This means that once the device is completed, the cylinder This results in a very tight fixation of the card cloth on the top and is achieved in a simple and rapid manner.

Therefore, the present invention provides a carrier cylinder such as a tonfa roll with a card dock. allows for much faster coverage than with techniques using known placement of loss. Noh.

Card crossle on the cylindrical surface of the carrier cylinder (preferably tonfa roll) To facilitate the application of the loop, a truncated conical guide may be used; The awl guide has a slot (groove) that is aligned with the slot in the carrier cylinder. and has a maximum diameter approximately corresponding to the diameter of the cylindrical surface of the carrier cylinder. It is. As a result, the loops of the card cloth will be clipped into the slots of the said guides. can be first mounted on the conical guide with the car mounted on the The loop of the skull causes an expansion in that loop (it is a strip of elastic material pushed in the direction toward the carrier cylinder (allowed by expanding the and is easily transferred to the surface of the carrier cylinder by sliding movement. . The clip continues to move into the carrier cylinder slot and once the card When the cloth is pressed sufficiently against the carrier cylinder, it will advance along the conical guide As the loop expands, it creates a pretension in the strip of elastic material, ensuring Fixedness is maintained.

The use of a conical guide provides a very simple procedure and the card onto the carrier cylinder It becomes possible to assemble the cloth quickly and reliably.

According to another aspect of the invention, the card used in the method of the invention as defined above A skull is provided.

The present invention has been described by way of example only with respect to the preferred embodiments shown in the accompanying drawings. Explained in detail.

Figure 1 is based on the invention of fixing card cloth to the surface of a carrier roll. FIG. 3 shows an end view of a closed-loop card cloth used in the method.

Figure 2 shows a card in the shape of a rectangular piece before it is formed into the loop shape shown in Figure 1. FIG. 3 is a side view of the cross.

FIG. 3 is a plan view of FIG. 2.

Figure 4 shows how the looped card cloth is guided on the cylindrical surface of the carrier roll. FIG.

Figure 5 shows a loop-shaped card cloth fixedly installed on the outer peripheral surface of the carrier cylinder. FIG.

FIG. 6 is a cross-sectional view showing details of a preferred arrangement for carrying out the mounting method shown in FIG. It is a front view.

FIG. 7 is a cross-sectional view corresponding to FIG. 6 showing the arrangement used during disassembly.

FIG. 8 is a diagram showing an end surface of a card cloth attached to a cylindrical carrier.

First, with reference to Figures 1 to 3, stretch the card cloth designated by part number 100. A lengthened piece is shown. This card cloth is long as shown in the plan view. A strip 101 of elastic material is rectangular and further has opposite ends 102. It is configured. Both end portions 102 are arranged so that the cross rotates around the cylindrical surface of the carrier cylinder. Figures 1 and 2, which are arranged adjacent to each other when wrapped around each other, are shown in Figures 2 and 3. After the planar piece shown is formed into a circular loop, both ends 102 are connected to each other. This shows how it looks like.

The wire carding tooth 103 is supported by the elastic strip 101 and is When the card cloth is wrapped around the cylinder, the entire outer circumferential surface of the cylinder is exposed. protruding from its side so as to enable a nearly uniform arrangement of the carding teeth. It is.

The elongated carrier web 104 is constructed from a layered fibrous material and includes elastic strips 10. It is kept at 1. This web 104 is a card cross carrier or editor. The base of the carding tooth 103 not only constitutes the base of the carrier cylinder, but also forms the base of the carding tooth 103. Prevent contact with metal surfaces. If this contact occurs over a period of time, This may cause marks and wear.

The carrier web 104 is longer than the strip 101, so that the carrier web 104 is longer than the strip 101. Each end 102 has an opposite end 105 that projects outwardly in the longitudinal direction. these The protruding opposing end 105 protrudes inside the loop-shaped card cloth shown in FIG. 0 See Figures 1-3. The newly constructed card cloth described in The surface of the conductor can be wrapped using a new technique. This technique is shown in Figs. 5.

As shown in FIG. 1, after the card cloth 100 is formed into a closed loop shape, the carrier The protruding opposing end 105 of the web 104 has a length of at least a portion of the opposing end 105. It is fitted into an elongated U-shaped clip 106 that extends along the hand direction. elongated U-shape The clip 106 extends over the entire length of the opposite end 105, i.e., as shown in FIG. This opposite end 1 preferably extends over the entire width of the piece of card cloth to be 05 into the clip 106, any convenient method may be used. , as indicated by the arrow in FIG. Obviously, the opposite end 105 and the clip 106 are fitted into each other by a relative longitudinal sliding movement. closed loop The card cloth further includes a card cloth having a cylindrical surface 108 in the illustrated arrangement. It is attached to the cylindrical outer circumferential surface of the carrier cylinder made of zuffer roll 107. . An axially extending slot 109 (see FIG. 2) is formed in the cylindrical wall of roll 107. opposite ends 1 of the carrier web captured between the rims of the clip 106 05 and the clip 106.

The doffer roll 107 is of standard design used as part of a high-volume knitting machine. may be suitable for the standard design products necessary to carry out the method of the present invention. The only modification is to form an axially extending slot 109 in the face of the roll. Ru.

To attach the looped card cloth onto the cylindrical surface 108, the clip 106 is The lead-in end must be provided at the entrance of slot 109, and the clip must be placed along slot 109. At the same time as the lip 106 is advanced, the looped cross is pushed onto the cylindrical surface 108. Can be attached.

While attaching the looped card cloth onto the cylindrical surface 10B, the clip 106 is inserted into the slot. 109. The opposing wall surface 111 of the slot 109 and the opposing wall surface 111 The engagement of the grip 106 with the rim provides a slidable internal connection. Furthermore, the same The mating is effected by a clip 106 onto the opposite end 105 of the carrier web 104. It is designed to provide an internal clamping action that makes the gripping force even stronger. this Therefore, once the installation is completed, the looped card cloth on the cylindrical surface 108 This provides a solid fastening, and the installation is simple and quick. Wear.

The cylindrical surface 108 is arranged so that the looped card cloth can be easily wrapped onto the cylindrical surface 108. a maximum diameter 113 approximately corresponding to the diameter of 108 and aligned with slot 109 Using a conical guide 112 with an axial slot (not shown in Figure 4) Therefore, the looped card cloth can be inserted into the slot of the guide 112. on the surface of the guide 112 with the opposing end 105 and clip 106 guided by the can proceed. During this movement, the loop is pushed in the direction of the roll 107. As it is pressed, it expands along the circumferential surface, but this is because the strip 101 expands. and is permitted by. Appropriate circumferential expansion of looped card cloth, And the clip 106 smoothly advances into the slot 109 of the cylindrical wall of the roll 107. By inserting the card cloth into the conical guide 112, the cylindrical surface 108 is smoothed. can be moved to.

For this reason, the elongated U-shaped clip 106 is attached to the loop-shaped card cloth. constitutes a simple and highly reliable means of retaining the protruding opposite end 105. can be easily and quickly slidably inserted into the slot in the carrier cylinder. .

As described above, the present invention can be applied to a card cloth on a roll such as a dotufa roll. Simple installation provides the means and results in a significant reduction in man-hour costs.

Additionally, a simple modification to Dotsfarol's existing design can accommodate card crosses. Can be installed easily. Furthermore, this is extremely important for producers and users of knitting machines. can offer significant economic benefits.

There are many users of high-layer knitting machines, some of which are used to form the covering of animal toys with fur. For example, "fur fabric" ) J formation, the invention has particular advantages for these users in knitting machines. have

1 to 5 show embodiments of the present invention, and in particular, FIGS. 4 and 5 show the embodiment of the present invention. Referring to Figures 6-8, which illustrate the preferred method of card cloth attachment, these figures In particular, the installations shown in Figures 4 and 5 illustrate the configuration of the means for carrying out the method. Ru.

First, with reference to FIGS. 6 and 7, the form of the knitting roller indicated by 1 member number 120 The cylindrical carrier has a card cross ring 121 arranged on its circumferential surface. ing. This card cross ring 121 extends in the axial direction within the circumferential surface of the roller 122. a loose projecting end (details not shown) received in slot 122 extending ), which is equivalent to the protruding opposite end 105 shown in FIG. It is held in this position by a cap 123.

FIG. 6 shows a card cross ring 121 and a retainer on the outer periphery of the knitting roller 120. The retaining clip 123 is generally rotated in the axial direction, similar to that described above with reference to FIG. Figure 7 shows the mounting sleeve 124 for sliding into the card cross slide. Figure 8 shows the same parts for disassembling the knitting roller 120. The end face of the card cross ring installed along is shown.

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Claims (1)

[Claims] 1. A carrier cylinder (107, 120), in the method of attaching the card cloth (100, 121) to the surface of the Card cloths are placed in pairs that touch each other when the cloth is placed around the cylinder. a strip (101) of elastic material having a resisting end (102); Supported by the strip (101), the cover covers the entire outer peripheral surface of the cylinder (107). a wire car protruding from one side of it to form a uniform distribution of cutting teeth; ding teeth (103) and fixed to said strip of elastic material (101), said having an opposed end (105) projecting longitudinally beyond each end (102) of the strip; an elongated carrier web (104), the method comprising: The card cloth (100) is arranged so that the opposite ends (102) of the strip (101) are mutually connected. the opposite end (104) of the carrier web (104). 05) are protruded inside the loop in parallel with each other, and the carrier web ( 104) along at least a portion of the opposing end (105). and a cylinder (107). ) Attach a closed loop of card cloth to the outer circumferential surface (108) of the cylinder (108). 7), attach the introduction end of the clip (106) to the entrance of the slot (109), and Simultaneously with the advancement of the clip (106) along the rod (109), the cylinder (1 07) Card cloth mounting comprising pressing the cross loop against How to attach. 2. A card cloth (100) is placed on the surface (108) of the carrier cylinder (107). A guide (112) is used to apply the loop and said guide (112) 12) is a slot lined up with the slot (109) of the carrier cylinder (107). and has a diameter of the cylindrical surface (108) of the carrier cylinder (107). It has a maximum diameter (113) that corresponds approximately to that of the card cloth. The clip (106) is attached to the slot of the guide (112). The card can be initially mounted on the guide (112) in The loop of the base (100) is such that it touches the surface (108) of the cylinder (107). until it is pushed in the direction toward the carrier cylinder (107) by sliding movement. 2. The method for attaching a card cloth according to claim 1. 3. The guide (102) has a maximum diameter located adjacent to the end of the cylinder (107). A conical guide with a diameter and a card cross towards the cylinder (107) (100) during the closed-loop sliding movement, the curve expanded on the cylindrical surface of the cylinder. To facilitate the sliding movement of the card cloth, the loop of the card cloth is shaped like a cylinder. 3. A card according to claim 2, wherein the card is expanded to increase its height relative to its diameter. How to install the cross. 4. Assemble the card cross ring (121) to the outer peripheral surface of the knitting roller (120). and a mounting sleeve (124) is used for the removal. How to install the card cloth as described. 5. The surface of the carrier cylinder (107) having a slot (109) on the outer peripheral surface ( 108) is a card cross (100, 121) intended to be applied to and opposite ends (102) that touch each other when the cloth is applied around the cylinder. ), and a strip (101) of elastic material having 1) and when the card cloth (100) is assembled, the cylinder To form a uniform distribution of carding teeth over the entire outer peripheral surface of the card (107) a wire carding tooth (103) protruding from one side thereof; and said elastic material. is fixed to the strip (101) of the strip (101), and each end (102) of the strip (101) an elongated carrier web (104) having an opposing end (105) projecting longitudinally beyond the ) and a card cross. 6. Complete the loop formation to be assembled on the outer periphery (108) of the cylinder (107). In order to hold the protruding end (105) of the carrier strip (104), A lip (106, 123) is provided, and a carrier cylinder (107, 12) is provided. A clip (106, 123) is attached to the shaft slot (109, 122) on the outer periphery of the The card cloth according to claim 5, which is fastened.