CN102203335B - Circular knitting hosiery machine, method for manufacturing products using the circular knitting hosiery machine, and knitted garments or hosiery produced by the method - Google Patents

Abstract

The present invention relates to a circular knitting and hosiery machine comprising means for producing on the same row of stitches alternating terry and crochet stitches, or alternatively crochet stitches with conventional holes and crochet stitches with widened holes. The invention also relates to a piece of clothing or hosiery having the aforesaid stitches.

Description

Circular knitting hosiery machine, method for manufacturing products using the circular knitting hosiery machine, and knitted garments or hosiery produced by the method

technical field

The present invention relates to the field of circular knitting hosiery machines and, in particular, to a circular machine for making socks and tights.

Background technique

It is known that there is a circular knitting hosiery machine capable of producing knitted loop socks. Circular knitting sock machines capable of producing transfer knit socks with transfer patterns are likewise known.

Machines designed to produce knitted terry fabrics cannot perform transfer knitting. At most, by interrupting the production of socks or tights, and changing the structure of the machine, one can obtain, in the same product, a tubular section of knitted terry fabric as well as a tubular section of transfer. Obviously, such a solution is technically and economically unhelpful, so that in practice no goods of this type will be produced.

In either case, there is no circular machine capable of making a terry loop and a transfer loop on the same circular loop. Thus, until today, there is no such hosiery article in which loop sections alternate with transferred loop sections on the same tubular portion, in other words along the circumference of the article.

However, the need to produce such articles is felt; consider, for example, the field of sports socks: on the one hand, for example, on the heel and in specific areas on the sole of the foot, there is a need to protect the foot from the mechanical stresses to which it is subjected And in place to provide a certain degree of comfort; on the other hand, for example, the skin of the upper part of the foot needs to breathe as freely as possible.

Current attempts to meet this purpose include simulating transfer loops by interweaving very fine yarns (primary yarns) with thicker yarns in order to give the impression that holes of a certain size have been formed in the knitted fabric. In fact, looking at the item up close, it is clear that finer yarn runs through each hole, and as such, it is not a true transfer stitch, but a stitch made by a process known as "float stitching" .

Contents of the invention

More precisely, the object of the present invention is to propose a circular knitting hosiery machine that makes it possible to obtain terry loops and transfer loops on the same circular stitch.

This object is achieved by a circular knitting hosiery machine. The circular hosiery knitting machine comprises: a needle cylinder; a dial and/or an auxiliary crown, the dial and/or the auxiliary crown are eccentrically mounted on the needle cylinder corresponding to the top of the needle cylinder, said dial and/or said accessory crown are provided with a plurality of radially sliding punches; means for advancing and retracting said punches to allow the coil to be lifted from a particular needle and drop to other adjacent needles, thereby realizing coil transfer; a plurality of needles, said plurality of needles being slidably mounted on the housing of said syringe, each of said needles being far below the mounting point Coil holding means are provided; actuator means associated with said cylinder to lift the required number of needles to a height to bring said coil holding means to the level of said punch place; an external sling sheet support crown; a plurality of sling sheets, the plurality of sling sheets are arranged in the external crown and slide radially in the external crown, each sling sheet is provided with a A transfer plane for jersey fabric or transfer loops, an upper beak for forming knitted terry fabric or transfer loops with larger holes, and at least one selection heel; and an electronic selection device provided with at least a selection device movable between an inactive position and an active position, wherein the selection device engages the selection heels of the scoopers to select a desired number of the scoopers in the radially forward direction displacement in position, thereby placing at least one yarn on said upper beak.

This object is also achieved by a knitted garment or hosiery. The knitted garment or hosiery includes a terry loop and a transfer loop on the same circular loop. And the knitted clothes or hosiery are made by using the above-mentioned circular knitting hosiery machine to make products. The method comprises the steps of: selecting a desired number of scoopers to move said scoopers into a forward position for forming knitted loop fabric in combination with individual needles; selecting a required number of needles to move The needles are raised to a height allowing the coil to be lifted from one needle and conveyed to the preceding or following needle in combination with said corresponding punch which slides radially, thereby forming a transfer coil. Alternatively, the method may include the step of selecting the required number of slingers to move said slingers to a forward position in which both yarns fall on the upper beak on; select the needle corresponding to the selected slip sheet to raise said needle to a height that allows the loop to be lifted from one needle in combination with the radially sliding respective punches and Feeds to the previous needle or the next needle to form a transfer coil with a larger hole.

Description of drawings

The characteristics and advantages of the machine according to the invention will be more clearly understood from the following description, by way of example and not limitation, of some of the preferred embodiments of the machine, with reference to the accompanying drawings, in which:

Figure 1 shows a view of the entire circular machine according to the invention;

Figure 2 shows an enlarged view of the machine at the top of the syringe;

Figure 3 shows a top view of the machine at the top of the syringe;

Figure 4 shows a top view of the machine at the yarn supply area;

Figure 5 shows details of the needle and corresponding punch;

Figure 6 shows the details of the bender and associated selector actuator;

Fig. 7 shows two yarn guides and a warp piece selected to form a loop loop;

Fig. 8 shows two yarn guides and a yarn bender selected to form a transfer loop with a larger hole;

Figures 9a to 9d schematically illustrate the same number of stages of movement of the coil between two adjacent needles;

Figures 10 and 11 show two examples of parts of socks according to the invention; and

Figure 12 shows a part of a tights according to the invention.

Detailed ways

Referring to the drawings, reference number 1 generally designates a circular knitting hosiery machine according to the invention. Some parts related to the structure of the machine have been omitted in FIG. 1 for greater clarity.

The machine 1 comprises a cylinder 10 on the outer surface or housing of which is made a plurality of longitudinal grooves along which the needles 12 slide. According to one embodiment, the needle 12 is pushed upwards by a post 16 or a selector, with an intermediate element 17 interposed if necessary.

The needle 12 is provided at the top with a needle hook 13 and associated tongue 13', and at a position well below these with loop holding means. For example, the coil holding means comprises a substantially horizontally extending shoulder or protrusion 14 . Advantageously, immediately below this shoulder 14 each needle has a recess 15 allowing the inner punch to be joined with the outer punch to form the transfer coil.

The selectors 16 are equipped with notches capable of engaging with the same number of bars 18 of the selector actuators 19 which are individually actuated according to the pattern to be formed.

Above and eccentrically to the cylinder 10 , a substantially circular dial 20 is mounted, which engages its own axis of rotation 21 . On the upper surface of dial 20 are provided a plurality of grooves which slidably accommodate internal punches 22 . Advantageously, said grooves are not arranged exactly in the radial direction, but are suitably inclined in the direction opposite to the direction of rotation, so as to constitute a circumferential envelope. This arrangement allows for a more reliable function, since it determines the inclination of the inner punch, which is particularly favorable for inserting the needle into the concave notch 15 while lifting the coil.

The inner punch 22 is provided with a raised portion 23 intended to engage in a corresponding needle track 24 formed on the cover 25 of the dial 20 . The needle tracks are equipped with inserts 26, 26' which control the exit and return of the internal punch 22 (Fig. 3).

Eccentric to the cylinder, in the same plane defined by the dial 20 is mounted a subsidiary punch holder crown 30 , but with an eccentricity opposite to that of the dial. The external punch 31 , provided with a raised portion 32 , slides radially along a corresponding needle track 33 provided on the cover 34 of the accessory crown 30 , in which raised portion 32 is intended to engage. Said needle track 33 is provided with an insert which controls the radial advancement and retraction of said outer punch 31 .

The top of the needle cylinder 1 is supported with a crimping piece holder crown 40 with radial grooves, and the crimping pieces 42 are placed in these radial grooves so as to slide the crimping pieces 42 .

The circular machine 1 is equipped with at least one electronic selector device 45 for selecting the sinkers 42, capable of controlling the advance of each individual sinker in radial direction, as will be hereinafter As explained. Each sinker has at least one selector butt 43 . The electronic actuator is equipped with the same number of selector devices or slides 46 as the number of selector heels of the bending disc. Each selector device is electronically actuatable to act on the respective heel of the sinker and displace it radially towards the center of the cylinder.

Advantageously, there are at least three, preferably four selector butts, and thus four selector slides, to ensure correct and reliable selection of the individual warping pieces during the rotation of the cylinder. It will be apparent that during use, each sling piece 42 has a separate selector heel 43, with adjacent sling pieces placing their respective heels at different heights.

In other words, the electronic needle selector device 45 of the crepe sheet is equipped with a number N of driving devices 46 vertically stacked on top of each other in the shape of a comb, capable of being selectively actuated. This sinker is equipped with a single selector heel 43 so that N adjacent sinkers present their respective heels at different heights corresponding to the positions of the N drive means 46 .

Each sinker piece 42 is provided with a transfer plane 47 to form plain stitches or transfer loops (when the sinker piece is not selected), and an upper beak 48 to form terry loops, or as will be shown at a later point As will be explained later, a transfer loop with a larger hole is formed (when the crepe piece in the forward position is selected).

Furthermore, each sinker has an upper protrusion 49 which is controlled by the associated panel and which determines the normal radial displacement of the sinker.

The cylinder 1, the dial 20 and the subsidiary crown 30 rotate at the same rotational speed and in the same direction. According to one embodiment, their rotation is controlled by a single motor unit. For example, FIG. 3 shows a gear 50 that transmits motion to the outer punch holder accessory crown 30 . According to an embodiment variant, the dial or the outer crown need not necessarily be controlled by a gear, but can be driven by an independent motor and powered by its own actuator synchronized with the main motor.

As a result, when the cylinder is made to be rotated by the toothed part provided at its lower end, the subsidiary crown 30 receives its movement from the main shaft of the aforementioned gear, while the dial 20 supported by the associated central shaft 21 is in turn aided by other gears Or an independent motor rotating synchronously with the main motor.

Figure 3 also shows the center 10' of the cylinder, the center 24' of the dial track 24 and the center 30' of the accessory crown 30 separated from each other.

Figure 4 shows the main yarn feeder 54 seen from above and, as an embodiment example, shows a feeder for feeding elastic yarn 56 and other yarn guides 57 for colored yarns .

As can be seen from the view in Figure 4, the machine can be basically divided into three separate working areas, each approximately 120° wide. Starting from the position of the main yarn supply area or the doffing area, the first area A equipped with an electronic slinger needle selector device 45 is used to select the slinger for forming a loop loop or a widened transfer loop, provided with a needle The subsequent second zone B of the actuator selector device of 19 is used for feeding the stitch and is thus delimited by the lifting zone and the doffing zone, and the subsequent third zone C is used for example for inserting colored yarns and/or Or any other operation like cotton thread or so called skipped or restricted yarn.

In area A, the machine functions as follows.

If the electronic needle selector actuator does not select the bender 42, then normally form flat stitches or transfer stitches, and each yarn sent by the main yarn device 54 falls on the transfer plane 47 of the bender.

In order to select the desired number of bend pieces, the processor unit programmed based on the pattern of the item selectively instructs one of the drive means or slides 46 to have the bend of the heel 43 in the position corresponding to the control body. Before the sheet arrives, it positions itself in a position that interferes with the heel. A subsequent coiler having a selector heel at a different height than the preceding coiler will be selected by corresponding different drive means actuated by the processor.

The warp sheet thus selected occupies the forward position in which at least one first yarn guide 60 for the main yarn 61 and at least one second yarn guide 63 for the loop yarn 63 have been placed. After the yarn device 62 (see FIG. 7 ) is pre-appropriately positioned, the main yarn 61 rests on the transfer plane 47 , while the loop yarn 63 rests on the upper beak 48 of the warp sheet 42 . Thus, loop loops for a desired and preset number of loops are formed in the same row.

It should be noted that the formation of the terry loop is thus completely independent of the choice of needle. Apparently, the selection procedure described above makes it possible to realize the same loop pattern even with different feeds on the same row of loops.

According to an embodiment variant, at least two yarn guides 60, 62 of the main feed 54 are arranged substantially at the same level and close together (Fig. All the yarns fall on the upper beaks 48 of these warp sheets. In the subsequent zone B of the machine, if the needle corresponding to the selected crepe piece is selected for the transfer stitch, a transfer stitch is formed with a larger hole, that is, with a larger hole than normally occurs. The transfer loop of the hole, the width of this hole is determined by the height of the upper beak of the crepe sheet.

In order to achieve this, a special sinker 42' with an upper beak 48' higher than a conventional sinker can be used to reinforce the width of the hole of the transfer loop (Fig. 8).

In the area of the machine designated by the letter B for feeding the coils, the function is as follows ( FIGS. 9 a to 9 d ).

Depending on the pattern of the item, the processor instructs the selector actuator to lift the required number of needles 12 to a height well above their normal operating height to form the transfer loop. During the initial phase, (lifting zone for delivering the loop, Fig. 9a), the selected needle C is lifted to place the loop and hook the loop hold to a shoulder provided on each needle or other hold of the loop. device 14. In this position, the needle C positions itself with the transverse notch at the level of the inner punch or the outer punch 31 (depending on whether the coil is moved to the right or to the left). Subsequently, the punch starts its horizontal departure movement. When the needle C is momentarily inactive, the punch inserts itself into the notch and thus likewise into the coil. The needle C lowers itself leaving the coil in the punch (Fig. 9b). After the needle C has been fully lowered, the punch is displaced towards the next (or previous) needle D due to the offset of the outer punch holder crown or dial relative to the cylinder, which next (or previous) punch The head is not working yet. The needle D then rises and inserts itself into the coil delivered by the punch (Fig. 9c). Needle D continues to rise while the punch leaves the loop on the hook of needle D with a horizontal return movement (doffing area for transfer loops, Fig. 9d).

Thus, the needles are staggered by about one pitch relative to the punches due to the eccentricity of the dial relative to the cylinder, so that when using the internal punches relative to the dial, the coil moves from a The needle shifts to the previous needle. Vice versa, due to the relative eccentricity of the crown with respect to the barrel, the loop is moved from one needle to the next when using an external punch relative to the accessory crown.

In order to facilitate the transfer of the coils from the needles to the punches, the indentations 15 of the needles 12 are formed by transverse grooves inclined with respect to the sides of said needles.

In this way, in zone B of the machine, by selecting these needles, it is possible to transfer a stitch or stitches from one or more needles to the previous or next needle, respectively, enabling the operations that make it possible to obtain transferred stitches.

In conclusion, the machine according to the invention makes it possible to obtain knitted structures of the type described below.

We formed the design on the same circular loop by setting up the main feed guide to form the terry loop and by simply selecting the bend piece required in area A and the needle required in area B to transfer the loop Good terry loops and transfer loops, ie along the circumference of the article constituted by terry loops and transfer loops, achieve an interlacing fully influenced by the design to be formed in the absence of any mechanical constraints.

By arranging the main supply guides side by side at substantially the same height, and by simply selecting the desired sinker in zone A and the needle for transferring stitches in zone B corresponding to the selected sinker, We have formed transfer coils with larger holes.

Also by selecting the needles in area B corresponding to the non-selected looper pieces, we have formed, without any mechanical restraint, on the same circular coil a transferred loop with a larger hole and a loop with a The transfer coil of the normal hole, and realize the interlacing which is completely influenced by the pattern to be formed.

Therefore, the following coils are realized alternately on the same circular coil:

- jersey fabric (bending piece and needle not selected), designed terry loops and transfer loops (with normal holes);

- jersey (slip pieces and needles not selected), and transfer loops with larger holes (select only the needles corresponding to the selected swipes);

-Jersey (slip sheet and needle not selected), transfer loops with normal holes, transfer loops with larger holes.

Figures 10 and 11 show two examples of socks 70, 70' on which at least one zone of colored knitted terrycloth can be seen in each case on the same tubular part 71 , 71 ′, at least one zone 72 , 72 ′ (with normal holes) of transferred loops, zone 73 of base terry fabric, and zone 74 of jersey fabric.

Figure 12 shows more precisely a part of a pair of tights 80, on this part, on the same tubular part, it can be seen that the area formed by the transfer coil with the normal hole 81 is separated from the one with the larger hole 82. The regions formed by the transferred coils appear alternately.

Those skilled in the art may, while remaining within the scope of protection of the appended claims, modify, change and substitute certain elements to meet occasional needs with other embodiments that are functionally equivalent to those of the machine. For example, electromagnetic actuators may be used instead of electropneumatic actuators.

Each of the features described as belonging to one possible implementation may be implemented independently of the other implementations described.

Claims (17)

1. a circular knitting footwear machine, comprising:

Syringe;

Dials and/or attached hat, the top of described dials and/or described attached hat and described syringe accordingly bias is installed on described syringe, at described dials and/or described attached labeling, is provided with a plurality of drifts that radially slide;

For the device that makes described drift advance and retract, to allow that coil is lifted and drop down onto other adjacent pin from specific pin, thereby realize coil, shift;

A plurality of pins, described a plurality of pins are slidably mounted on the shell of described syringe, and each pin in described pin is being provided with coil holding device far below mounting points place;

Actuator apparatus, described actuator apparatus is associated that with described syringe the pin of requirement is promoted to certain height, thereby described coil holding device is brought to the At The Height of described drift;

Outside sinker support hat;

A plurality of sinkers, described a plurality of sinker is arranged in described outside sinker support hat and in described outside sinker support hat and radially slides, each sinker be provided be used to form jersey or transfer stitch barring-on plane, be used to form knitted loop fabric or select heel compared with the top beak shape thing of the transfer stitch of macropore and at least one; And

Electronic selection device, described electronic selection device is provided with at least one selecting arrangement, described selecting arrangement can move between rest position and active position, wherein, the displacement of the sinker that the selection that described selecting arrangement engages described sinker calls in person to select requirement in position forward radially, thus at least one yarn is placed on the beak shape thing of described top.

2. circular knitting footwear machine according to claim 1, wherein, circumference with respect to described syringe, and from main yarn drainage area, the first circumference arc that it is 120 ° that described electronic selection device is arranged to along amplitude is selected sinker, and the described actuator apparatus of described pin is arranged to equal next arc of 120 ° along girth and is shifted described fabric.

3. circular knitting footwear machine according to claim 1, wherein, described dials is provided with the groove being essentially radially on the upper surface of described dials, in described groove, be provided with inner drift, and described inner drift slides in described groove, described groove along the direction contrary with the direction of rotation of described dials with respect to described inclined.

4. circular knitting footwear machine according to claim 1, wherein, the described coil holding device being located on described pin is included in shoulder or the projection of flatly extending lower than the position of described mounting points.

5. circular knitting footwear machine according to claim 1, wherein, described pin has at least one horizontal cut in the position lower than described coil holding device, and described horizontal cut can contribute to lift described coil by drift.

6. circular knitting footwear machine according to claim 3, wherein, described inner drift is connected to form described transfer stitch with outside drift, and described outside drift and described inner drift are guided in their radial motion by panel device.

7. circular knitting footwear machine according to claim 1, wherein, described electronic selection device is provided with quantity for " N " individual drive unit, described drive unit is with the form vertically stacked of comb and can optionally activate, and described sinker is equipped with single selection heel so that N adjacent sinker presents their each heel at different At The Heights corresponding to the position from a described N drive unit.

8. circular knitting footwear machine according to claim 1, wherein, described syringe, dials and/or attached titled with identical rotating speed and along identical direction rotation.

9. circular knitting footwear machine according to claim 1, comprise main yarn feedway, described main yarn feedway comprises at least one first and second thread-carrier, described the first and second thread-carriers at a distance from each other and be arranged at different At The Heights, thereby when described sinker is in forward location, at least one yarn, be that raw yarn drops in the barring-on plane of described sinker, and at least one yarn, be that loopy yarn drops on the beak shape thing of described top.

10. circular knitting footwear machine according to claim 1, comprise main yarn feedway, described main yarn feedway comprises at least one first and second thread-carrier, described the first and second thread-carriers are close to each other and be arranged at sustained height place, thereby when described sinker is in forward location, raw yarn and loopy yarn all drop on the beak shape thing of described top.

11. circular knitting footwear machines according to claim 10, wherein, described sinker has the top beak shape thing higher than the beak shape thing of the knitting knop cloth sinker of routine.

12. utilize the method manufacturing a product according to the circular knitting footwear machine described in any one in claim 1 to 11, wherein, described circular knitting footwear machine comprises main yarn feedway, described main yarn feedway comprises at least two thread-carriers, described thread-carrier away from each other and be arranged at different At The Heights, thereby form knitted loop fabric, during syringe rotation, said method comprising the steps of:

Select the sinker of requirement so that described sinker is moved in forward location, for forming in combination knitted loop fabric with each pin;

Select the pin of requirement so that described pin is promoted to certain height, thereby allow from a pin, to lift coil and described coil is delivered to previous pin or a rear pin in combination with the corresponding drift radially sliding, thereby form transfer stitch.

13. utilize the method manufacturing a product according to the circular knitting footwear machine described in any one in claim 1 to 11, wherein, described circular knitting footwear machine comprises main yarn feedway, described main yarn feedway comprise at least two close to each other and be substantially arranged at the thread-carrier at sustained height place, during syringe rotation, said method comprising the steps of:

Select the sinker of requirement so that described sinker is moved to forward location, in described forward location, raw yarn and loopy yarn all drop on the beak shape thing of top;

Select the pin corresponding with the sinker having selected, so that described pin is promoted to certain altitude, thereby allow from a pin, to lift coil and described coil is delivered to previous pin or a rear pin in combination with each drift radially sliding, to form the transfer stitch compared with macropore.

14. methods according to claim 13, wherein, the pin corresponding with described not selected sinker is also selected for coil and carries, so that form a transfer stitch with normal hole and one with compared with the transfer stitch of macropore on same circular coil.

15. utilize the hosiery of making according to the method described in any one in claim 12-14, and described hosiery comprises looped pile coil and transfer stitch on same circular coil.

16. hosieries according to claim 15, comprise at least one tubular portion, and wherein, along the circumference of described at least one tubular portion, the region that at least one consists of knitted loop fabric and at least one alternately occur by shifting the region that knit goods forms.

17. hosieries according to claim 15, described hosiery is socks.