JPS6117959Y2 - - Google Patents

Description

[Detailed description of the invention] The invention is based on a winding shaft for winding a predetermined amount of various fabrics produced in a stockinette circular knitting machine.
The present invention relates to a device that is capable of automatically feeding one winding shaft to a predetermined position, and also enables a safe feeding operation without applying vibration or shock to various parts of the mechanism when the winding shaft is fed to a predetermined position.

In various circular knitting machines, when the produced knitted fabric or woven fabric is wound onto a winding shaft, the amount of winding on one winding shaft is limited to a certain amount, and this is a predetermined amount. When the fabric is fully wound, it is carried out of the machine together with the winding shaft, and at the same time, a new winding shaft is supplied to a predetermined winding position, and the fabric that continues to be produced is wound again onto the new winding shaft. things are being done. At this time, when supplying a new winding shaft to one of these winding shafts, automation is of course required, and when supplying the winding shaft to a predetermined position, it is necessary to keep the winding shaft in a free state. It is common practice to feed the take-up shaft to a predetermined supply position by means of a dropping means for ease of operation and simplification of the structure. Naturally, vibrations and shocks are generated, and these vibrations and shocks often have a harmful effect on the winding shaft supply mechanism and various parts of the drive mechanism, such as damage to the gear system, misalignment of the meshing position, and contact with electrical contacts and other parts. There is a need for safe and quiet feeding of the winding shaft without complicating the feeding operation, which may cause frequent troubles such as disassociation of members.

The present invention was developed in response to these demands, and its features include a winding shaft with a gear at one end, a storage section at the upper end, and a winding mechanism at the lower end. Transfer within the guide and drop
A part of the circumferential surface of one winding shaft is supported at the lower end of the housing of the guide when supporting the winding shaft by dropping onto a winding shaft holding bearing on the winding mechanism side and meshing the gear with the gear on the bearing side. A sending member having an arcuate recessed portion is provided to be able to swing at a fixed angle, and the other end of a link rod that is connected to the sending member at one end and can move forward and backward together is swingably supported at the lower end of the guide and the lower end thereof. The winding shaft is connected to the upper end of the temporary holding support piece of the winding shaft, which is provided with a winding shaft end support hook portion extending directly above the winding shaft holding bearing.

The present invention will be described in detail below with reference to the illustrated embodiment.The embodiment shows one example in which the present invention is applied to a fabric take-up shaft in a stockinette knitting machine. The figure is a schematic plan view of a circular knitting machine 1, in which a knitting section (not shown) and a winding section 4 are arranged rotatably in the direction of an arrow 5 in a circular machine frame 3 supported by three legs 2. ing.

The winding section 4 is located below the knitting section and rotates synchronously with the knitting section (at the same speed in this invention). After winding the fabric knitted in the knitting section onto the winding shaft, it is carried out to the outside of the knitting machine 1.

The knitting section and the winding section 4 perform knitting and winding at the same time while rotating, and when a counter or other device detects that the fabric is fully wound around the winding shaft, the rotation of both sections is decelerated from high speed to low speed. , a microswitch, a phototube, a limit switch, or other sensing member S is configured to stop the full winding shaft at a predetermined position where it can be easily taken out.

The winding unit 4 with such a configuration and after stopping at a predetermined position
The structure for supplying driving sources such as electricity and pneumatic pressure to the motor is approximately the same as that of the prior art.

To explain the winding unit 4, in FIGS. 2 to 11, the winding device is roughly divided into a winding mechanism 11 that rotates the winding shaft A to wind the fabric B, and a cutting mechanism that cuts the fabric B. mechanism 12, and a take-out conveyance mechanism 13 that receives the full winding shaft A2 with the fabric B in a fully wound state from the winding mechanism 11 and takes it out of the knitting machine 1.
and a new winding shaft supply mechanism 14 that supplies a new winding shaft A1 to the winding mechanism 11, the winding mechanism 11, the cutting mechanism 12, and the new winding shaft supply mechanism 1.
4 is supported by a rotating device frame 16, and the take-out conveyance mechanism 13 is also installed on the base on which the tripod 2 is installed.

The new winding shaft supply mechanism 14 is as shown in FIGS. 2 to 6, and 21 and 21 are a pair of guides for storing and guiding the new winding shaft A1, and are provided oppositely in the device frame 16. The upper end is located close to the machine frame 3 so that the new take-up shaft A1 can be easily inserted from outside the machine frame 3, and the lower end is located at the center of the winding mechanism 11. It is located on the inner surface of the support 16a of the device frame 16 in order to supply the new take-up shaft A1 to the device frame 16.

The cross-sectional shape of each guide 21, 21 is such that an outer wall 21a, a front wall 21b, and a rear wall 21c following the outer wall 21a are each formed in a substantially U-shape. The distance between them forms an X. On the other hand, the winding shaft A has the clothing P wound around the rod surface, and has a collar 22 at one end, and a collar 22 and a gear 23 at the other end. This winding shaft A has 2 collars at both ends.
By arranging the guides 21, 22 in the gap X between the guides 21, 21, the guides 21, 2 remain horizontal
1 and can fall from its upper end to its lower end.

The upper part of the guides 21, 21 is a substantially vertical storage part 24 that can store a large number of new winding shafts A1.
Between the guides 21 and 21 at the lower end of this storage section 24, there is a feeding member 2 that feeds out the new winding shafts A1 one by one.
6 is placed. The feeding members 26, 26 are rods 2
As shown in FIG. 3, the end of the clothing P of the new winding shaft A1 is supported by the arc-shaped recess 26a, and rotated approximately 90 degrees in the direction of the arrow 25. As a result, one new winding shaft A1 that was being carried is dropped, and at the same time, the new winding shaft A1 that was stored above the new winding shaft A1 in the storage section 24 is dropped.
is formed so as to be received by the arcuate convex portion 26b.

As shown in FIG. 2, the rotating means 28 of the feeding member 26 is connected to an arm 29 provided on the rod 27 rotatably supported on the horizontal rod 16b of the device frame 16, and A crank 30 that is pivotally supported on the support column 16a, a link 31 that connects the arm 29 and one end of the crank 30, an air cylinder 32 that pushes up the other end of the crank 30, and a spring that pulls back the rotated crank 30. 33, and the feeding member 2 is moved by the operation of the air cylinder 32.
6 sends out one new winding shaft A1 to the winding mechanism 11, and after being sent out, the feeding member 26 returns to the state shown by the solid line in FIG. 3 by the action of the spring 33.

As shown in FIGS. 12 and 13, the feeding members 26, 26 are provided with a mechanism for temporarily holding the new winding shaft A1 at the lower ends of the guides 21, 21 when feeding the new winding shaft A1 to the winding mechanism 11. Support pieces 73, 73 are rotatably connected and supported to prevent vibration and impact when falling onto the bearings 36, 36 in the winding mechanism 11. That is, link rods 74, 74 that advance and retreat using the reciprocating rotation of the arrows of the rods 27 of the feed members 26, 26 are arranged on one side of the feed members 26, 26, and the tips of the link rods 74, 74 are , a support shaft 75 protruding from both supports 16a, 16a of the device frame 16,
A swingable support piece 73 whose midway is pivoted to 75;
Hook portions 76, 7 connected to the upper end of 73 and supporting both sides of the new winding shaft A1 at the lower ends of the support pieces 73, 73
6, and the support piece 7 as shown in the figure.
3 and 73 are provided above the bearings 36 and 36 and inside the support columns 16a and 16a and the guides 21 and 21, so that the feeding members 26 and 26 can be used as new winding shafts in FIG. When sending out A1, the supporting pieces 73, 73 are moved to the pivot 7 via the link rods 74, 74 along with the rotation of the members 26, 26.
5, 75 as fulcrums, the new winding shaft A1 advances as shown in the solid line in FIG.
26 returns, the support pieces 73, 73 also return together, and as the hook parts 76, 76 retreat, the new winding shaft A1 moves into the recesses 36a, 36 of the bearings 36, 36 directly below.
This reliably prevents the object from being placed on the object a by a short distance and falling inside the guides 21, 21, causing large vibrations and shocks.

Next, based on FIGS. 4 to 10, the winding mechanism 1 is
1 will be explained. A drive means for the winding mechanism 11 is arranged below the guide 21. Reference numeral 36 denotes a bearing provided at the lower end of the guide 21, which has a semicircular recess 36a on its upper surface, and a pair of bearings rotatably support both ends of the winding shaft A. Further, the lower end of the guide 21 has a notch in the rear wall 21c, and this notch 37 is located behind the bearing 36, and the winding shaft A is connected to the bearing 36.
By riding over this, it is possible to separate from the guide 21 through the notch 37.

Support 16a on the side where the gear 23 of the winding shaft A is located
A rotating shaft 38 is rotatably supported on the
Gears 39 and 40 are provided at both ends thereof.
The gear 39 meshes with the gear 23 of the winding shaft A supported by a bearing 36, and a ratchet 41 is provided on the gear 40 side.

The driving means is driven in synchronization with the rotation of the winding section 4 by receiving power from a drive source that rotates the winding section 4 or from a separate drive source, and by driving the gear 40. , the winding shaft A is rotated in one direction via the rotating shaft 38 and the gears 39, 23. It is preferable that the drive means up to the gear 40 incorporate means for quickly stopping the winding shaft A when the fabric is fully wound and preventing unnecessary rotation.

Reference numeral 44 designates a guide holding means of the winding mechanism 11, in which a holding roller 47 is rotatably supported at the lower ends of a pair of arms 46, 46 whose upper ends are pivotally supported on the support 16a via shafts 45, 45. An inclined plate-shaped guide member 48 is disposed above and in front of this presser roller 47 .

The pressing roller 47 has a felt fabric 47a wrapped around two parts of its surface, and rolls in contact with the surface of the fabric B wound up on the winding shaft A, so that the fabric B can be wound normally. I try to make it possible.

The arms 46, 46 are swingable about the shafts 45, 45, and the distance from the shaft 45 to the presser roller 47 is approximately equal to the distance from the shaft 45 to the winding shaft A on the bearing 36, The swing locus passes through the winding axis A.

When the fabric B is not wound around the winding shaft A,
The presser roller 47 is stopped by a stopper (not shown) at a position close to the winding shaft A, and the winding shaft A is held in the bearing 36.
The guide member 4
8 is in a diagonally upwardly inclined state, and the fabric B supplied from the pull-down rollers 50, 50, 50
is guided to the winding shaft A as shown in FIGS. 8 and 9. Since the winding shaft A is attached to a clothing P in which a number of curved needles are embedded, the tip of the fabric B that has been guided by rotating in the direction of arrow C is pulled with the needles. Hang it and it will wrap automatically.

It is best if the clothing P of the winding shaft A is attached to a range corresponding to the width of the fabric B, but it should be attached only to the area corresponding to the felt fabric 47a as shown in FIG. Also good. Further, it is preferable that the guide plate 48 is formed of a metal plate, synthetic resin, or the like, and has a smooth surface. Further, the guide holding means 44 may be configured so that the holding roller 47 comes into contact with the winding shaft A due to its weight, but a tension member 49 such as a spring may be provided to push the holding roller 47 toward the winding shaft A side. It may be configured to suppress it.

The pull-down rollers 50, 50, 50 are connected to the winding section 4.
It is provided on the upper part of the knitting section or in the knitting section, and supplies the fabric B to the winding mechanism 11 according to the operating speed of the knitting section and the winding section 4.

When the fabric B is wound around the winding shaft A in the winding mechanism 11 and becomes fully wound, this is detected by a counter or the like, and the rotation of the knitting section and the winding section 4 is reduced and stopped; Thereafter, in order to take out the full winding shaft A from the winding mechanism 11, the subsequent fabric B is cut by the cutting mechanism 12.

In FIG. 2 and FIG. 7, the cutting mechanism 12 is arranged above the winding mechanism 11 and inside the horizontal rod 16b, and the cutting mechanism 51 is rotatably supported by the horizontal rod 16b via a support member 53 in parallel thereto. screw shaft, 54
is the motor that drives this screw shaft 51;
1 and the motor 54 are arranged one set each on the left and right horizontal rods 16b, 16b, and both motors 54 rotate synchronously.

A screw member 55 fixed to each end of the upper blade 56 is screwed to the screw shafts 51, 51, and the horizontal rod 16
As shown in FIG. 7, the upper blade 56 approaches the lower blade 57 and clips and cuts the fabric B between them. The upper blade 56 moves in a direction perpendicular to the width direction of the fabric B, and is inclined with respect to the lower blade 57 so as to sequentially cut the fabric B from one side to the other side in the width direction. If formed,
Cutting is reliable and easy.

As shown in FIG. 2, power is supplied to the motor 54 by a power feeding member 58 provided on the machine frame 3 and a power receiving member 59 provided on the horizontal rod 16b. It can freely move forward and backward toward the other side, and when the operation of the knitting machine 1 is stopped, it moves forward and supplies power.

Next, the take-out conveyance mechanism 13 will be explained based on FIGS. 7 and 11.

The take-out conveyance mechanism 13 has a slope 61 installed on a base and a take-out means 66, and the slope 61 moves the full winding shaft A2 from the bottom of the winding mechanism 11 to the outside of the machine frame 3. Rolling conveyance is possible.

One end of the inclined table 61 is located below the winding mechanism 11 and has a guide portion 62 that slopes outward and upward, and the other end is located outside the machine frame 3 and has a stopper portion 63 that slopes outward and upward. However, the inclined table 61 is gently inclined downward from the guide part 62 side to the stopper part 63. 64 and 65 are support legs of the tilting table 61.

The take-out means 66 swings the take-out member 68, which is pivotally supported by a pair of supports 69 fixed on the base, by an air cylinder 70 whose base is pivotally supported by a bracket 67 on the base. It is composed of

The take-out member 68 has a roller 71 and a fixing plate 72 between a pair of L-shaped arms 68a, and a piston rod 70a of an air cylinder 70 is connected with a pin to the end of the arm 68a. By doing so, the take-out member 68 can be rotated until the roller 71 reaches the vicinity of the bearing 36.

When the take-out member 68 is rotated to the position shown by the imaginary line in FIG. 7, the roller 71 comes into contact with the full take-up shaft A2, pushes it up, and removes it from the recess 36a of the bearing 36. As a result, the full winding shaft A2 falls from the recess 36a through the notch 37 (shown in FIG. 5) onto the inclined table 61. When this fall occurs, the full winding shaft A2 is guided by the guide section 62 and is securely placed on the inclined table 61.
It rolls on the top and is stopped at the stopper.

The full winding shaft A2 falls down by the take-out member 68 and rolls on the inclined table 61 in the same direction as the winding direction C of the fabric B. Fabric B wound up on A is never unwound.

Reference numeral 82 denotes a safety cover provided in a hanging manner via a hinge 84 at the lower part of the cylindrical outer wall 83 constituting the machine frame 3, and is designed to open and close the opening through which the full winding shaft A2 exits from the machine frame 3. The full winding shaft A2 rotates when pushed by the full winding shaft A2.

Next, the entire operating operation of the illustrated knitting machine, including the feeding operation of the new winding shaft of the present invention, from winding up to unloading of the fabric will be explained.

While rotating the knitting part and the winding part 4 in the machine frame 3, the fabric B knitted in the knitting part is transferred to the winding mechanism 1 of the winding part 4.
1 via a pull-down roller 50. When the fabric B is fully wound around the winding shaft A of the winding mechanism 11,
This is detected by a counter or the like, the rotation is decelerated, and the rotation of the knitting and winding unit 4 is stopped so that the full winding shaft A2 is located substantially above the inclined table 61.

In this stop position, the winding device is connected to the power supply member 58.
Electricity is supplied from the machine frame 3 side via the power receiving member 59, and the motor 54 and the like can be driven. motor 5
4 to move the upper blade 56 forward and cut the rear end of the rolled up fabric B through the cooperation of the upper blade 56 and lower blade 57. Immediately, the air cylinder 70 is activated to remove the take-out member 68. is swung upward, the full winding shaft A2 on the bearing 36 is pushed up, pushed out from the notch 37, and dropped onto the inclined table 61.

When the full winding shaft A2 is placed on the inclined table 61, it rolls until it comes into contact with the stopper part 63 and is taken out from the knitting machine 1, during which time the take-out member 68 is moved by the return movement of the air cylinder 70. descends.

The upper blade 56 of the cutting mechanism 12 retreats substantially simultaneously with the swinging of the take-out member 68, and the air cylinder 32 is activated. Due to the operation of the air cylinder 32, the feeding member 26 rotates in the direction of arrow 25 in FIG.
One new winding shaft A1 is taken out from 6, dropped into the guide 21, and supplied onto the bearing 36.

In order to supply the bearing 36 onto the bearing 36, in the present invention, the bearing 3 of the new winding shaft A1 described earlier in FIGS. 12 and 13 is
By the temporary holding means just before 6, the bearing 36
It can be supplied to the top without fear of vibration or shock. The presser roller 67 of the guide presser 44 is close to the new take-up shaft A1 on the bearing 36, and the fabric B that is subsequently fed after cutting is guided to the guide member 48 as shown in FIG. and its tip reaches the new take-up shaft A1 rotating in the direction of arrow C,
It is wrapped around by the action of the clothing P.

Immediately after the full winding shaft A2 is taken out, the operations of the knitting section and the winding section 4 are restarted, and the fabric B
is gradually wound up on the winding shaft A, and during this time the presser roller 47 of the guide presser means 44 presses the fabric B so that it does not loosen.

According to the winding shaft supply device of the present invention, the guide 2
1 and 21 as a stock storage section for a large number of new winding shafts A1,
By configuring the feed members 26 and 26 to send out and fall one piece at a time, a predetermined amount of fabric is fully wound onto the take-up shaft, and in synchronization with this unloading, a new take-up shaft A1 can be accurately and easily set. At the same time, the winding shaft accelerates and falls directly onto the bearings 36, 36 after passing through a considerable falling stroke of the guides 21, 21,
Due to the large vibration and impact, the bearings 36, 36
The support piece 73, which includes the feed member 26, the link rod 74, and the hook portion 76, prevents damage to the gears and other rotational meshing members for driving the winding shaft, or misalignment of the surrounding gears. bearings 36, 36 safely and quietly.
At the same time, the bearings 36, 36
There is no problem of the winding shaft jumping or popping out inside the knitting machine, and there is no risk of adverse effects on the knitting machine or the fabric side, and there is no risk of damaging the integrity of each part of the mechanism or the durability of the winding shaft itself. Therefore, it is an excellent means for supplying this type of winding shaft. In particular, in the present invention, the supporting piece 73 is moved forward by the forward movement of the link rod 74 together with the feeding rotation of the feeding member 26 which is swingable at a fixed angle and is provided with the arc-shaped recess 26a that supports only one of the winding shafts A1. Hook part 7
6 is crossed across directly above the bearing to close it, and the end of the winding shaft that falls is once supported here, and by the returning rotation of the feed member 26, the hook part 76 is pulled out and retreated, and the winding shaft is The ends are smoothly moved onto the lower bearings with no gaps, thereby eliminating meshing of the gears 23, 39 under impact, preventing gear breakage and rebound, and furthermore, these members 26, 7
4 and 73 are integrally mechanically connected so that their respective movements can be performed reliably and stably, there is no need for complicated separate control, and the necessary structure is simplified, which is a great advantage.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view showing the relationship with the knitting machine frame, FIG. 2 is a perspective view showing the new take-up shaft supply mechanism and cutting mechanism, and FIG. is an explanatory diagram for explaining the new take-up shaft supply operation, FIGS. 4 and 5 are front and perspective explanatory views showing the main parts of the winding mechanism, respectively, and FIG. 6 is a cross-section taken along the line - in FIG. 4. 7 is an explanatory side view showing the supply mechanism, cutting mechanism, and take-out conveyance mechanism, FIG. 8 is an explanatory diagram for explaining the guiding operation of the leading edge of the dough, and FIG. 9 is an explanatory diagram for explaining the winding start of the leading edge of the dough. Fig. 10 is a perspective view of the guide holding means, Fig. 11 is an enlarged explanatory view for
The figure is a perspective view of the main parts of the take-out conveyance mechanism, Fig. 12,
FIG. 13 is an explanatory diagram of the driving portion of the feeding member. DESCRIPTION OF SYMBOLS 1... Knitting machine, 4... Winding part, 11... Winding mechanism, 12... Cutting mechanism, 13... Take-out conveyance mechanism, 14... New winding shaft supply mechanism, 16... Device frame, 21 ... Guide, 24 ... Storage section, 26 ...
Feeding member, 36... Bearing, 37... Notch, 44
...Guide holding means, 48...Guide member, 56
... Upper blade, 57 ... Lower blade, 61 ... Inclined table, 66
...Take-out means, 68... Take-out member, A... Winding shaft, A1... New winding shaft, A2... Full winding shaft,
B...Dough, C...Rotation direction, 73...Support piece,
74... Link rod, 75... Support shaft, 76... Hook portion.

Claims (1)

[Scope of utility model registration request] A winding shaft having a gear at one end of the shaft is transferred and dropped through a guide having a storage section at the upper end and a winding mechanism at the lower end, and is supported by the winding shaft holding bearing on the winding mechanism side, and the gear in meshing with the gear on the bearing side, a feeding member is provided at the lower end of the housing of the guide so as to be swingable at a constant angle and has an arc-shaped recess that supports a part of the circumferential surface of one winding shaft; The other end of a link rod, which is connected to the feed member at one end and can move forward and backward, is swingably supported at the lower end of the guide, and at its lower end is a winding shaft end support that crosses directly above the winding shaft holding bearing. A supply device for a fabric winding shaft for a circular stockinette knitting machine, characterized in that it is connected to the upper end of a temporary holding support piece of the winding shaft having a hook portion.