JPS6331579B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a double cylinder knitting machine, and more particularly to a yarn feeding device thereof. The present invention particularly relates to a yarn feeding device used in a main yarn feeding station.

[Conventional technology]

The known "main" yarn feeding device (UK patent no. 301350,
No. 1009698 specification) is difficult to adjust;
Moreover, the conditions required for manufacturing and assembly are severe, and sophisticated operations are required when using and assembling the knitting machine. In addition, the detailed arrangement is
Minor changes are required for different gauges (needle densities) and different cylinder diameters. Also,
It is also necessary to use different drives (cams, cam followers, etc.) for different feeders of a particular knitting machine. In order to guarantee reliable feeder changeover, different types of knitted products (whether broadly ribbed, ribbed or jiyaguarded) are ), for
It is necessary to make precise adjustments. Moreover, the finishing of socks of modern shapes, especially the finishing of toe bags, where it is necessary to use threads each having widely different properties, requires a greater number of feeders. This added feeder is
Often, they can only be used by using special mechanisms.

British Patent No. 535946 describes a plurality of oscillators with yarn feeding ends movable along an arc from a capture position through a yarn feeding position to a cross-pause position upstream of the yarn feeding position. a movable feeder, a plurality of rotatable cams and cam followers coupled to the feeder for transmitting rocking motion to the feeder during feeder switching, and adjusting the yarn feeding position of each feeder; A yarn feeding mechanism is described having a device for. However, this particular type of yarn feeder is capable of forming semicircular stripes (knitting different yarns from the heel yarn to the top of the foot).
It is utilized for highly specialized purposes such as, and requires consequential changes in the construction of the knitting machine, although this is hardly mentioned in this British patent specification. In such a yarn feeding device, since the incoming yarn and the outgoing yarn need only be slightly overlapped, it is possible to pick up only in a predetermined area. The mandrel bit had to be removed for pick-up needles that interfered with rib knitting. Additionally, the latch guard and sinker are separated and the sinker is temporarily retracted upstream of the point where the needle picks up the yarn to allow the feeder to be moved in and out of the yarn feeding position with sufficient clearance. . If the equipment is not properly assembled, the feeders will collide with each other. Although the overall device has fulfilled its specific purpose, it has become rather complex in the knitting area in the latch guard and sinker, thereby preventing the device from being adapted to different types of knitting machines and different types of yarns and knitted fabrics. . Also, a splitter cam is used to control the movement of the feeder. This device is considered extremely limited in its assembly and use. It was also believed that the formation of semicircular stripes to identify the top and heel of socks would fall into disuse when other types of patterns replaced them.

[Problem that the invention seeks to solve]

In the prior art described in the above-mentioned British patent specification, it was extremely complex to adapt a large number of feeders and to adjust the yarn feeding position to ensure reliable and good yarn feeding. One of the difficulties in solving such problems is that when adjusting one yarn feeder to the yarn feeding position, it conflicts with the possible positions of other feeders and cannot be matched. A great deal of trial and error is required in ensuring that all the yarn feeders occupy satisfactory yarn feeding positions without them colliding when the feeders are still in an in/out motion. In the prior art, a solution to this problem is to individually adjust a large number of feeders, and as a result, the movement of each feeder during yarn changeover becomes very complicated. Likewise, the assembly and use of yarn feeding devices has also become extremely complex.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an improved double cylinder knitting machine which is simple, easy to adjust and capable of accommodating a large number of different feeders, which significantly overcomes the above-mentioned problems in a very simple manner. The purpose is to provide a thread mechanism.

Furthermore, it is an object of the present invention to provide a feeder that reduces manufacturing difficulties and increases the flexibility of the feeder in use. Another object of the present invention is to provide a yarn feeding device that has a simplified structure, allows easy adjustment, and can incorporate a large number of feeders. It is in.

[Means for solving problems]

According to the present invention, two opposing needle cylinders 2, 4, one end of which is swingably mounted so as to be movable around an axis substantially parallel to the cylinders 2, 4, and the other end At least 5 yarn feeding end portions 52 each having a yarn feeding end portion 52 movable in a direction substantially perpendicular to the axial direction of the cylinders 2, 4.
A book feeder 14 and each feeder 1 for adjusting the height of the yarn feeding end 52 in the axial direction of the cylinder.
4 guide means 18, cutting/capturing means 26,
The feeder 14 has a plurality of cams 31 and a cam follower 32 for operating the feeder 14 to swing, and the cam 31 has a plurality of radial portions for alternately capturing and feeding, and a plurality of radial portions for alternately capturing and feeding. and a radial section for a temporary stop, and a capturing position at one end of the feeder swing movement in which the feeder 14 is close to the cutting and capturing means 26, and a radial section for feeding the needle with thread. three feeder angular positions, including an intermediate yarn feeding position where the feeder 14 approaches the cylinders 2 and 4; and a crossing pause position upstream of the intermediate yarn feeding position and at the other end of the feeder swing movement. Furthermore, the link mechanism 3 between the cam follower 32 and the feeder 14
Adjust the link length as 6, 38, 44, 50,
In a double cylinder knitting machine comprising adjusting means 46 for thereby adjusting the yarn feeding position of the yarn feeding ends 52 of the feeders, for each feeder 14, that of all the yarn feeding ends 52. The yarn feeding end 5 is arranged so that the yarn feeding end 5 can move toward or away from the temporary stop position without any support.
defining a unique predetermined pause position P ₁ -P ₆ for each feeder 14 such that the feeders 14 are spaced apart from each other;
and individually adjustable stop means 54 are provided in contact with the feeder 14, and the feeder 14 is actuated toward the respective stop means between different radii of each cam 31 in the process of changing to a temporary stop radius. A sloped portion is provided to force the
Cam follower 32 and link mechanisms 36, 38, 44,
50, even after the feeder 14 contacts the stop means 54, the feeder does not further displace until it reaches the temporary stop radius portion of the cam 31, allowing continuous rotational movement of the corresponding cam 31. The air moving means 50 is installed, and the temporary stop position P ₁ ~
The yarn feeding position can be adjusted by the adjusting means 46 without changing P ₆ and thus the yarn feeding ends 52 of the feeders can be spaced closer together in the temporary stop positions, and therefore all the temporary stop positions can be
4 within a relatively small arcuate path, so that continuous yarn feeding can be performed when the yarn feeding ends 52 move between their respective yarn feeding positions and temporary stop positions. A double cylinder knitting machine is provided.

[Operating effects and modes of the invention]

The yarn feeding mechanism in the dual cylinder knitting machine of the present invention uses the basic actuation mechanism described in British Patent No. 535,946. That is, the yarn switching is performed by simultaneously supplying two yarns to a temporarily occupied position, which is a temporary stop position, rather than a yarn feeding position. Since the feeder occupies a pause position during the yarn changeover, the outgoing yarn feeder can swing through the yarn feeding position to the capture position, and immediately after that the new yarn feeder leaves the pause position and enters the yarn feeding position. You can move to Therefore, it is possible for all feeders to occupy the same yarn feeding position,
Further, it is possible to adjust the yarn feeding position within the same range without risk of collision.

The above-mentioned oscillating motion prevents the feeder from colliding with the closing needle latch, and also in the radial direction (to slide the new thread over the latch and/or to carry the new thread onto the closing needle latch). shall be such that movement of the feeder to the feeder is avoided.

According to the invention, the cam and cam follower are arranged upstream of the yarn feeding position to a sufficient extent to pass over the latch guard and sinker of the knitting machine before the feeder makes a further oscillating movement to cross and reach the pause position. rocking the feeder to the side, and the stop means occupying the feeder in a predetermined pause position, while the cam follower is still on the ramp of the cam, and after the feeder reaches the pause position, A device is provided for disabling continuous motion (dry motion).

In the said British patent specification, the outgoing and incoming yarns are arranged to overlap by a very short length and the feeder is arranged upstream of the yarn feeding position during feeder changeovers. In contrast, the present invention uses a more gradual feeder movement, whereby the feeder moves along a generally longer arc, so that the incoming and outgoing yarns This allows for a relatively long overlap between the feeding threads and smooth feeder switching. Because the incoming and outgoing threads can be overlapped for longer periods of time, it is not necessary to increase the speed of feeder movement due to the fairly large arcuate paths over which several feeders move. do not have. Furthermore, it becomes possible to switch yarns at a knitting speed higher than the normal speed. By using the present invention,
The feeder with the shortest travel distance to the pause position is such that it travels well past the latch guard and sinker, while a number of other feeders are designed to ensure that the yarn is properly fed or that the feeder is It can be positioned so that it does not exceed the range arranged around the thread of the feeder and is temporarily stopped further upstream. As a result, the feeders not only move at the yarn feeding level from the downstream yarn feeding position to reach the capture position (as described in British Patent No. 535946), but also It also moves at a common lower level upstream. The movement should in any case be carried out using a latch guard with a chamfered lower edge in order to keep a sufficient distance between the feeder and the latch guard to facilitate the movement of the feeder at the common yarn feeding level. must be overcome. The chamfered latch guard shape also helps push the yarn downward as the feeder moves upstream. Advantageously, this movement is such that the feeder passes a sinker which is then caused to project radially and outwardly. This helps to ensure that any up-and-down movement for crossing does not significantly alter the pick-up conditions of the thread in the area where the latch is closed.

Despite using a fairly large arc of motion at the common yarn feeding level, the feeder can pause and cross within a small arc upstream of the yarn feeding position. The use of a stopping means allows a number of feeders to be temporarily stopped at different positions before the maximum extent of the arc becomes so large that pick-up becomes unreliable for feeders with maximum upstream movement. . In this way, 5
or six feeders could be accommodated relatively easily, and if necessary it would also be possible to use seven feeders, all operating on the same principle. Regardless of whether or not the yarn feeding position is accurately adjusted, the feeder can be precisely arranged at the temporary stop position. By providing the stop means in this manner, it is possible to make adjustments within a considerable range without impairing the precise arrangement of the temporary stops. All feeders move along the same path through the needle into which the thread is slipped. Congestion in this area can be reduced. It is also possible to use latch guards and sinkers configured in conventional shapes.

Changing the adjustment will change the time spent by the feeder in the pause position, but will not affect the time of the thread switching operation. The feeder is
During feeder switching operations, adjustments can be made to ensure proper yarn feeding in different senses without affecting their connection operations.

In one preferred version of the invention, the feeder is operated by a Bowden cable. This Bowden cable is designed to both adjust the feeder position and compensate for changes in cable dimensions. At the same time, this cable makes it possible to mount the feeder and the cam in any desired relative position, thereby allowing good access to the knitting area. All necessary adjustments can be made by Bowden cables, thus simplifying the assembly and installation of the knitting machine compared to the construction of prior art devices, in which several separate but interrelated adjustments have to be made. It's pretty simplified. This cable can also serve to nullify the continuous motion of the cam (idle motion) in such a way as to dampen the stoppage in the pause position. Therefore, preferably the cam follower is connected to the feeder by a Bowden cable;
Preferably, the length of the cable is adjustable to compensate for changes in length and to adjust the position of the feeder, and one end of the sleeve of the cable is supported by elastic means. . This elastic means constitutes a device for nullifying the excessive motion induced by the cam after the feeder reaches a temporary stop position as a result of moving along the sloped portion of the cam. An improvement in the operation of the yarn feeding mechanism can be achieved in this way and the overall construction can be simplified.

Preferably, further stopping means are provided to stop the feeder in a predetermined capture position, and excessive movement is avoided by floating the cam follower away from the cam. In this way both the pause position and the stop position can be predetermined independent of adjustment of the feeder position, and the feeder is minimized in the capture position. At the same time as the generally large arcuate oscillating movement of the feeder, the capture position can be arranged further downstream of the yarn feeding position than would normally be the case. The incoming yarn therefore passes through the middle of the area where the needle latch closes, even if the feeder is well upstream in the pause position. This also provides the additional advantage of being able to lift the needle facing the trapper for subsequent knitting and retaining the loose end of the thread on the outside of the needle. The loose ends of the threads can be knitted at the next station, but these thread ends are in any case inside the finished socks. A further advantage is that the feeder can be sufficiently isolated in the capture position to facilitate access for threading.

The cams and cam followers used in at least some of the feeders are the same, and the suspension and capture positions are differentiated by applying different leverages from the cam followers to the Bowden cable. It's advantageous. A cam can be used for all or most feeders of a mechanism, and in fact the same cam can be used for different gauges and cylinder diameters. The cam can be shaped to vary the period of rest upstream of the yarn feeding position which determines the overlap of the incoming and outgoing yarns. Preferably, this overlap includes about 20 stitches and is shorter than that required by many known main yarn feeding mechanisms. The feeder can be moved into the capture position at a low speed substantially corresponding to the speed of the needle so that very little additional thread is withdrawn from the feeder before the thread is cut and captured.

British Patent No. 535946 uses guide plates to add vertical movement for crossing and acquisition. The invention uses a similar control scheme that is known per se. However, since the crossing area is sufficiently upstream with respect to the yarn feeding position and substantially away from the knitting device, back and forth movement (tracking) is adapted to optimize yarn feeding and pick-up conditions. Moreover, the effect of the added vertical movement on yarn feeding is relatively small. Preferably, the yarn feeding position is adjacent to the level of the upper edge of the sinker of the knitting machine and a guide plate is provided for lifting the feeder for crossing after it has moved away from the latch guard and the sinker. The lower yarn feed position allows the needle latch to engage the yarn more reliably, and the feeder is held at this safe yarn feed level for an extended period of time before raising for crossing.
Even when raised, the lower edge of the latch guard can guide the thread and hold it at a safe level. Ridge knitting needles can participate in the pick-up. Whether the latch closes early or late due to the different tensions applied to the threads has little effect on pick-up.

A feeder having a pause position relatively close to the yarn feeding position is configured to be lowered after an initial rise and held at the initial yarn feeding level just before reaching the respective pause position, and further Advantageously, the at least one separate feeder is configured to be moved upwards just before reaching its respective stop position. By dividing the final pause level in this way, it is possible to avoid yarn wrapping at the end of the arc-shaped travel path of the feeders, and therefore to pause all feeders at the same level. It becomes possible to use a larger number of feeders than previously.

The feeder is suitable for plating since the feeder is temporarily stopped at the position closest to the yarn feeding position and performs plating in both directions of reciprocating motion, and the feeder is held at the same level in order to move to the temporary stop position. It is preferable to configure it so that. In this way, the plating relationship will not be disturbed during feeder switching, and using this mechanism, the plating will come out respectively when starting or ending with a good appearance. A seam can be formed in the knitted fabric by the yarn and the incoming yarn.

〔Example〕

Further advantages and preferred features of the invention will become apparent from the following description of preferred embodiments, taken in conjunction with the accompanying drawings.

A double cylinder knitting machine (see Figures 1, 2, and 8) consists of a pair of cylinders (needle cylinders) attached to top and bottom bed plates (not shown) by posts 6 (only one shown). It has 2,4. Associated with the cylinders 2, 4 is a yarn feeding mechanism with a preassembled feeder assembly and a preassembled actuator assembly. Latch guard 5 (see Figures 2 and 8)
is shielding the needle.

The feeder assembly is mounted on a central bed plate 8 and includes a base plate 10 which carries a post 12 which is pivotally connected to the bed plate 8 and has six feeders 14 pivotally connected thereto; A post 16 supports one side of a guide plate 18 in which a groove is formed and constitutes a guide means, a post 20 supports the other side of the guide plate 18, and a device for swinging the feeder 14 is supported. A post 22 is provided. Posts 12, 20 and 22 are secured at their tops by brackets 24 for particular rigidity.

Post 22 also carries a trapper device 26.

Actuator assembly (see Figures 1 and 4)
is mounted on the bottom bed plate, and includes a plurality of cams 31 for operating the cam followers 32 for the feeder 14, and a cam (not shown) for the cam followers 34 for each trapper 26. It has conventional components including a shaft 30 on which is mounted a shaft 30. A Bowden cable 36 connects the feeder 14 to the cam follower 32. bowden cable 3
6 wires 38 connect tension springs 40 and 4 which act on feeder 14 and cam follower 32, respectively.
2 keeps you in a tense state. One end of the sleeve (or sheath) 44 of the Bowden cable 36 is disposed on the post 22 and the other end is placed on the fixation plate 4 of the actuator assembly.
8 is located in a socket 46 attached to the socket 8. The socket 46 is height adjustable, and
It can be fixed by a nut 47, and a compression spring 5 is used to position the end of the sleeve 44.
Contains 0.

The individual feeders 14 are thus constructed as shown in FIG. The wire 38 holds the yarn feeding end 52 at a stop means 74 at the guide plate 18.
to the left against the tension of the spring 40 to the extent permitted by the adjustable set screw comprising the spring 40. When the wire 38 is relaxed, the yarn feeding end 52
moves to the right within the range allowed by the slots in the guide plate 18. The slots in the guide plate 18 transmit vertical movement about the pin 56 to the feeding end 52, as will be described below. The feeder 14 is constructed by mounting a bush 58 fixed to the post 12, a collar 60 swingable relative to the post 12, and respective pins 56 to hold the feeder at a distance. It is attached so that it can swing.

The cam follower 32 is arranged as shown in FIG. The tip 62 of the cam follower 32 is connected to the cam 31
The wire 38 is pulled by being swung by the wire 38. The cams 31 for different feeders 14 have the same structure. However, each wire 38 is attached to the cam follower 32 at a different radius (r ₁ ). When the wire 38 is relaxed, the tension spring 4
2 presses the tip 62 of the cam follower against the cam 31 so that the tip 62 moves radially inward toward the shaft 30 . The cam followers 34 for each trapper 26 are operated in a similar manner.

The trapper device 26 is as shown in FIG. The trapper blade 70 has a front wall 72 of the housing and a pressure lever 7 having a pressure adjustment screw 76.
4 by a T-shaped lever 78 that is swingable by a cam follower 34 and a Bowden cable 80. Slider 82 and tension spring 84 force blade 70 downwardly to the extent permitted by eccentric 86 . The trapper blade 70 has a recessed portion at its top for receiving, capturing, and cutting the thread with the aid of a guide wire 88.

Operation: Since the cam 31 has the stroke as described above and the wire 38 is connected to the cam follower 32 at such a radius r ₁ , the feeder 14 moves at least as shown in FIG. It can be swung to produce a circular arc motion. The distal end of the adjustable set screw (stop means) 54 and the slot of the guide plate 18
The feeder 14 is precisely positioned in the pause and capture positions shown in FIG. Pause positions are designated P, and the P subscript indicates the associated feeder numbered consecutively starting with the lowest feeder on post 12. The acquisition positions are likewise designated T ₁ ...T ₆ . The cam 31 has an intermediate portion between the top of the lobe and the valley therebetween for holding the feeder at the yarn feeding position shown at F in FIG. The yarn feeding position is illustrated in Fig. 2, and the V of latch guard 5
It is located slightly upstream of the letter-shaped recess and is generally common to the various feeders. The yarn feeding position can be individually adjusted circumferentially for each feeder by adjusting the sockets 46. Such adjustments do not change the yarn feed and capture positions, as explained below. Since the temporary stop positions P ₁ ... P ₆ are within such an arc,
The thread runs approximately tangentially to the cylinders 2, 4 and passes through the area where the latch is closed by the old loop. In this way, new thread can be moved quickly and reliably into the hook of the needle. The passage of the closing latch is indicated in FIG. 2 by the sloping dotted line Z. The guide plate 18 (see FIG. 7) has six slots 90, one for each feeder 14. The ends of all feeders at the yarn feeding position are latch guard 5.
The guide plate 18 and the feeder 14 are arranged opposite each other such that they are located at the level shown in FIG. 8 above the sinker 92 at the very lower edge of the feeder. The level of the sinker 92 is indicated in FIG. 2 by the horizontal dotted line Y. The guide plate 18 moves all feeders 14 by the same amount at this level (as indicated by distance L ₁ in FIG. 7). This distance L ₁ is the yarn feeding position as shown by line F,
Adjustment on both sides thereof, indicated by the distance L ₂ , and an addition for moving the feeder 14 past the latch guard 5 and the sinker of the knitting machine before any upward movement to reach the catching or pausing position. It includes movement.

The guide plate 18 is moved to the temporary stop position by the method described below.
Distinguish movement toward P ₁ ... P ₆ . The lowest feeder 14 remains at the same level. Advantageously, this feeder is a plating feeder as shown in FIG. 2, which is suitable for plating during reciprocation. The plating feeder is held at the same level, and
By transmitting the smallest circular motion, plating continues when the feeder moves upstream to the pause position. The next four feeders 14 move upwards in the same part of the knitting machine and then move horizontally to different extents before descending to reach the stopping positions P ₂ , P ₃ , P ₄ and P ₅ . Yarn can pass from one paused feeder under another paused feeder 14, but the yarn slides toward the front of the feeder 14, avoiding wrapping of the yarn around the feeder 14. be able to. The feeder 14, moving along the largest arc, initially moves horizontally at a high level, but then rises further and reaches the temporary stop position P ₆ . Therefore, although the yarn runs across other feeders 14 located at positions P ₁ to P ₅ , the yarn runs across these feeders 1
It does not wrap around 4. Any yarn lifting will only occur if the resulting change in yarn feed angle is small.

As can be easily understood from FIGS. 6 and 7, a distinction is made between the movement to the capture positions T ₁ to T ₆ when viewed also from the guide plate. As shown in FIG. 2, an elastic yarn feeder 9 having a retractable yarn feeding end
4 can be placed below the feeder 14,
It can also be operated by its own specific control device.

The two cams 31 of the actuator assembly swing the outgoing feeder 14 to its pause position and then move the incoming feeder 14 later than the outgoing feeder through the yarn feeding position to the pause position. and then feeder 1 that leaves
4 into the catching position and the incoming feeder 14 into the yarn feeding position, and the outgoing feeder 14
is moved ahead of the incoming feeder 14, so that changing the feeder takes place in a manner that is generally known per se. The successive stages of this operation can be understood from FIG. 4, which shows two cams which are displaced accordingly in order to switch the threads.

However, the final stage of the movement into the parking position or into the capture position is of particular importance. Towards the end of the movement to the pause position, the feeder 14 engages a set screw (stop means) 54. The cam 31 continues to rock the cam follower 32, but this movement is now ineffective (idle movement) and any further displacement of the wire 38 simply results in compressing the spring 50. Towards the end of the movement to the capture position, the feeder 14 engages the end of the respective slot, and
The cam follower 32 is lifted off the cam 31 and continues to rotate an additional small angle without actuating the feeder 14.

By adjusting the yarn feeding position, it is possible to change when the feeder reaches the pause position and thus the time that passes between the arrival of the outgoing and incoming feeder. However, the cam 31 ensures that the outgoing feeder always arrives before the incoming feeder and leaves the pausing position first to catch up with the incoming feeder, so that the incoming feeder It is formed in a shape that follows the outgoing feeder as it moves toward the yarn feeding position by a certain distance. This also applies when the lowest feeder replaces the highest feeder. In this case, the highest feeder 14 is the lowest feeder 1.
Before feeder 4 moves to the yarn feeding position, the lowest feeder 1
Start from the pause position early enough to move beyond 4.

In the configuration described above, the time spent upstream of the yarn feeding position remains unchanged at the feeder 14. What varies is, as previously mentioned, the time spent in the pause position (this time is determined by the time the spring 50 is compressed while the feeder 14 is in the pause position, and therefore the time spent in the yarn feeding position). (varies slightly depending on adjustment) and the time spent at a common feed level. The time spent at a common feed level is considerably longer for the lowest feeders, while it is relatively shorter for the highest feeders. The cam 31 should be configured such that the outgoing feeder enters a common feed level before the incoming feeder leaves the pause position. In this way, all contingencies can be accommodated and the precise timing of movement to and from both said positions can be ignored in the assembly of the knitting machine. Can be done.

Cam 3 for incoming and outgoing threads
The relative angle of 1 can be changed to some extent. However, the time spent upstream by both incoming and outgoing feeders cannot be significantly reduced. This is because the incoming and outgoing feeders would have to move so close that they might collide with each other, or the cams would have to be specially cut for each individual feeder. Because you have to. Therefore, in reality the overlap is approximately
Must be at least 15 stitches.

Assembly: Install the pre-assembled actuator assembly and feeder assembly onto the knitting machine. The pivot position of the base plate 10 is adjusted by a set screw to position the feeder 14 at a yarn feeding position at a distance from the needle as shown in FIG. Attach the Bowden cable to interconnect both assemblies. Adjust the socket 46 to position the feeder 14 at the rightmost adjusted yarn feeding position. Thereafter, the feeder 14 is swung toward the temporary stop position, and the feeder 14 is engaged with the feeder 14 and
Adjust the setscrews 54 (stop means) to position them at the desired, appropriately spaced pause positions. Thereafter, the feeder 14 can be returned to the yarn feeding position as shown by line F. The feeder 14 is stopped at any adjusted position by a set screw 54 and a spring 50. The feeder 14 is placed directly above the sinker at the yarn feeding position shown in FIG. No other adjustments are necessary.

Use: The feeder 14 can be freely adjusted to adjust the yarn feeding position without changing the suspension and capture positions, or to absorb bowden cable tension, etc.

Advantages: Actuator and feeder assemblies are easily interconnected and do not require extensive adjustment. The manufacturing tolerances of the cam 31 do not need to be very strict. The rate at which one feeder precedes the other during changeover or the pause period on the upstream side of the feeder section can be varied. No corrective adjustments need to be made to the pause and capture positions. When the feeder performs a crossing operation upstream of the yarn feeding location, the yarn from the crossing feeder is knitted continuously during the operation, resulting in a long continuous pick-up. This pick-up may be modified to some extent, either by deliberate adjustment or by changing manufacturing tolerances so as not to affect the quality of the connection between the incoming and outgoing threads. Can be done.

While the aforementioned advantages are obtained, a larger number of feeders can be incorporated into the knitting machine than in conventional systems. Although six feeders are used in the example, a number of feeders can be moved simultaneously through a lower level during changeover for a common circular motion, while maintaining proper pick-up conditions. , the entire arc can be kept within the limits required for the feed in the pause position, and winding of the thread around other feeders can be avoided. At least two of the feeders may be bulky plating feeders.

Congestion within the organization area must be avoided.
A sinker and mandrel bit can be used as shown in FIG. The latch guard can be solid and can include a small V-shaped recess. Due to the large arc of the maximum movement of the feeder,
The same cam can be used to perform different feeder movements by changing the leverage.

Defects such as loose thread ends coming out on the outside of the sock can be reduced. Also, the switching speed can be increased. There is no need to readjust or redesign the timing for floating knitting because a long continuous pick-up is obtained. Also, even if a group of low, inactive needles do not participate in picking up new thread,
A proper seam can be obtained.

The advantages of the invention described above also apply to rubber knitting. Since the feeder 14 in the capture position is relaxed and not in contact with the cam 31, wear can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the yarn feeding mechanism of the double cylinder knitting machine of the present invention, seen from the right side, with certain parts omitted for clarity of the drawing, and the second
3 is a rear perspective view of the feeder assembly of the mechanism of FIG. 1, showing the individual feeders in the yarn feeding position, the pause position, and the capture position, and FIG. 3 is a perspective view of the mechanism of FIG. 4 is a detailed plan view, partially in section, of the actuator assembly of the yarn feeding mechanism of FIG. 1, and FIG. 5 is a detailed plan view of the feeder assembly of FIG. FIG. 6 is a detailed plan view showing the feeder temporary stop position, yarn feeding position, and catching position of the mechanism in FIG. 1, and FIG. FIG. 8 is a side view showing a guide plate assembly for controlling the rocking and vertical movement of the knitting head; and FIG. be. 2, 4...Cylinder, 5...Latch guard, 6...
...Column, 8...Bed plate, 10...Base plate, 12...Post, 14...Feeder, 1
6... Post, 18... Information board, 20, 22...
Post, 26...Trapper device, 30...Shaft, 31...Cam, 32, 34...Cam follower,
36...Bowden cable, 38...Wire, 4
0,42...Tension spring, 44...Sleeve, 46
... Socket, 52 ... Yarn feeding end, 54 ... Set screw (stopping means), 70 ... Trapper blade,
74...Press lever, 78...T-shaped lever, 8
0...Bowden cable, 82...Slider, 8
6... Eccentric wheel, 90... Groove, 92... Sinker, 94... Elastic yarn feeder.

Claims (1)

[Claims] 1. Two opposing needle cylinders 2, 4,
One end is swingably attached so as to be movable around an axis substantially parallel to the cylinders 2, 4, and the other end is attached to the cylinders 2, 4 at a substantially right angle to the axial direction thereof. At least five feeders 1 with transversely movable yarn feeding ends 52
4, a guide means 18 for each feeder 14 for adjusting the height of the yarn feeding end 52 in the axial direction of the cylinder, a cutting/catching means 26, and the feeder 1
4, the cam 31 has a plurality of radial sections for alternately capturing and feeding, and a temporary contact between them. By virtue of its different radial sections, the feeder 14 is located at one end of its swinging movement, in which the feeder 14 is close to the cutting and capturing means 26, and the feeder 14 is located close to the cutting and capturing means 26, at one end of the feeder oscillating movement; 14 is close to the cylinders 2 and 4, and a crossing temporary stop position that is upstream of the intermediate yarn feeding position and at the other end of the feeder swing movement is regulated. Furthermore, the link mechanisms 36, 38, 44 between the cam follower 32 and the feeder 14,
50 and adjusting means 46 for adjusting the link length and thereby the yarn feeding position of the feeding end 52 of the feeder, for each of the feeders 14. , the yarn feeding ends 5 are arranged so that the movement of all the yarn feeding ends 52 toward or away from their temporary stop positions is free of bearings.
defining a unique predetermined pause position P ₁ -P ₆ for each feeder 14 such that the feeders 14 are spaced apart from each other;
and individually adjustable stop means 54 are provided in contact with the feeder 14, and the feeder 14 is actuated toward the respective stop means between different radii of each cam 31 in the process of changing to a temporary stop radius. A sloped portion is provided to force the
Cam follower 32 and link mechanisms 36, 38, 44,
50, even after the feeder 14 contacts the stop means 54, the feeder does not further displace until it reaches the temporary stop radius portion of the cam 31, allowing continuous rotational movement of the corresponding cam 31. The air moving means 50 is installed, and the temporary stop position P ₁ ~
The yarn feeding position can be adjusted by the adjusting means 46 without changing P ₆ and thus the yarn feeding ends 52 of the feeders can be spaced closer together in the temporary stop positions, and therefore all the temporary stop positions can be
4 within a relatively small arcuate path, and continuous yarn feeding can be performed when the yarn feeding ends 52 move between their respective yarn feeding positions and temporary stop positions. A double cylinder knitting machine featuring: 2. The air moving means 50 is arranged around the core wire 38 of the Bowden cable connecting the cam follower 32 and the feeder 14, and consists of a spring whose one end abuts and supports one end of the sleeve 44 of the Bowden cable. Claim 1 characterized in that
The double cylinder knitting machine described in section. 3 At the other end of the spring, there is a threaded adjustable socket 4 for adjusting the yarn feeding position.
The double cylinder knitting machine according to claim 2, characterized in that the double cylinder knitting machine is supported in abutment on the cylinder 6. 4. The cams 31 and cam followers 32 are the same for at least some of the feeders 14 and the cores are connected with the cam followers 32 at different radii r ₁ to stop the feeders 14 in their respective stopping means 54. The double cylinder knitting machine according to claim 2 or 3, characterized in that the double cylinder knitting machine is moved toward.