JPH06280141A - Weft knitting machine - Google Patents

Abstract

PURPOSE:To provide a weft knitting machine constructed so as to adjust the relative position of a carriage to another carriage by providing a carriage position-adjusting apparatus to at least either one of carriages reciprocating by mutually independent driving systems on needle beds longitudinally oppositely installed and operating this apparatus. CONSTITUTION:In a weft knitting machine supporting a carriage installing a number of needles in rows on needle beds longitudinally mounted and simultaneously having a cam for operating these needles on the needle beds by guide rails, carriages are kept in non-engagement state and mutually independent driving systems are provided to carriages and simultaneously a carriage position- adjusting apparatus is provided to at least either one carriage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat knitting machine in which a carriage position adjusting device is provided on carriages provided independently on front and rear needle beds, respectively.

[0002]

2. Description of the Related Art In a flat knitting machine having at least two needle beds, a carriage provided with a knitting cam for knitting enables reciprocating motion of needles along each needle bed in a row. Has become. In the carriage, the front cam box and the rear cam box are connected by a connecting member usually called a bridge. This connecting member is above the apex of the front and rear cam boxes,
It has a U-shape or a bridge shape, and the front and rear cam boxes are connected to the lower part thereof.

In a general flat knitting machine as described above,
Each knitting cam equipped in the front and rear cam boxes,
Since they are in the same phase on the carriage, for example, 2 on one side
When a rubber knitting structure is knitted by using a carriage having a base knitting cam, the knitting can be carried out by fully utilizing the four knitting cams of the cam boxes facing each other.

However, when knitting a rubber knitting, when the stitches knitted by the needles of the front and rear needle beds are not uniform, conventionally, the timing is adjusted by cutting a stitch cam which directly affects the knockover timing. However, the work is cumbersome and requires skill. Further, when knitting the flat knitting structure, the cam box is forced to reciprocate even though either of the front and rear cam boxes is not used. Therefore, the life of the knitting machine itself is shortened.

Therefore, in order to solve the above-mentioned problems of the flat knitting machine, the same person as the inventor of the present application provides carriages independently on the needle beds opposite to each other, and the carriages are respectively provided. By each drive system
We have developed a flat knitting machine that can reciprocate in only one direction or at the same time and applied for a patent.

[0006]

However, in the above-mentioned flat knitting machine including the conventional flat knitting machine, the belt for reciprocating by connecting the carriages stretches during repeated use. As a result, a slight deviation occurs in the relative positional relationship between the front and rear carriages. In order to correct the relative positional relationship of this delicate deviation, it is difficult to make a delicate adjustment only by operating each belt that reciprocates each carriage. Therefore, in order to correct this deviation, the position of the stitch cam must be corrected by cutting the stitch cam as described above, which is troublesome and requires skill.

Therefore, the present invention has been developed in view of the above points, and an object of the present invention is to provide at least a carriage that reciprocates on a needle bed that is opposed to the front and rear by a separate drive system. It is an object of the present invention to provide a flat knitting machine in which a carriage position adjusting device is provided on one carriage and the relative position of the other carriage with respect to one carriage can be adjusted by operating this device.

[0008]

In order to effectively achieve the above object, the present invention has the following structure. That is, in a flat knitting machine in which a large number of needles are arranged in parallel on each needle bed attached to the front and back and a cam for operating these needles is supported by a guide rail on each needle bed, each carriage is In this configuration, each carriage is provided with a separate drive system in a non-tethered state, and at least one carriage is provided with a carriage position adjusting device.

In addition to the above structure, a drive system for separately driving the front and rear carriages provided on the front and rear needle beds, respectively, is connected to one drive source, and one of the front and rear surfaces is connected therebetween. This is a configuration in which a clutch is provided in the drive system for the carriage.

In addition to the above-mentioned structure, a lateral movement stopping braking device is provided on one of the front and rear carriages that have a clutch in the system. Further, in the above flat knitting machine, each carriage is set in a non-tethered state, each carriage is provided with a separate drive system, and at least one carriage is provided with a carriage position adjusting device, and front and rear carriages are provided. A clutch is provided for each of the two drive systems that are driven,
The drive system is also connected to one drive source via these clutches.

Further, a braking device for stopping driving is provided between a clutch provided in each of the two drive systems and a carriage driven by each of the drive systems. Further, in the above flat knitting machine, each carriage is set in a non-tethered state, each carriage is provided with a separate drive system, at least one carriage is provided with a carriage position adjusting device, and the front and rear carriages are driven. It is also possible to provide a drive source for each of the two drive systems.

[0012]

In the knitting, the carriages provided in the front and rear opposite needle beds, respectively, which are provided in a non-communicating state with each other, are reciprocally synchronously reciprocated through the respective separate drive systems connected to the drive sources. Further, when it is desired to stop the movement of one of the carriages, the clutch provided in one of the drive systems of the separate drive systems is disengaged, or one of the drive sources that can drive both of the drive systems is stopped. The transmission of the power of the drive system connected to the carriage is stopped, and only the other carriage is reciprocated. The carriage stopped at this time can be prevented from moving inadvertently by the braking device or the braking action of the stopped motor.

When the relative positional relationship of the one carriage with respect to the other carriage is incorrect, a carriage position adjusting device provided on at least one of the front and rear carriages is actuated, and the carriage provided with this device is moved. It is possible to adjust the relative positional relationship between the front and rear carriages by slightly moving the carriage. Further, depending on the knitting method, the carriage position adjusting device may be actuated to intentionally shift the relative positional relationship between the front and rear carriages for knitting.

[0014]

EXAMPLES Examples of the present invention will be described below. 1 to 5 show an embodiment of a flat knitting machine according to the present invention, in which a front needle bed 2 and a rear needle bed 3 are provided on a frame 1 so as to face each other in a chevron shape. Above the front needle bed 2 and the rear needle bed 3
Along the bottom edge, above the guide rails 5,
4, 8 and 7 are attached, and a front carriage 6 is supported on the guide rails 5 and 4, and a rear carriage 9 is supported on the guide rails 8 and 7 so that they can travel parallel to the needle beds 2 and 3, respectively. ing.

In addition, the front and rear needle beds 2,
A support member 10 is provided between the tops of the three yarn guide rails, and the support member 10 guides a yarn guide rod (not shown).
11 are supported. Further, the carriages 6 and 9 are provided with thread guide rod locking member supporting arms 12 and 13 which are provided on the upper portions thereof, respectively. Each thread guide rod locking member support arm 12, 13 is provided with a thread guide rod locking member 14, 15 so that the thread guide rod can be carried when engaged with a thread guide rod (not shown). is there.

The pulleys 20 and 21 are pivotally supported on both sides of the front surface of the knitting machine base, and the carriage drive belt 2 is interposed therebetween.
2 is stretched, and the belt 22 and the front carriage 6 are connected by a connecting member 23. Also, the rear carriage 9
The carriage drive belt 26 is stretched between the pulleys 24 and 25 provided at both ends of the machine base, and the belt 26 and the rear carriage 9 are connected to each other via the connecting member 27 and the carriage position adjusting device 60. is there. That is, a carriage position adjusting device 60 is attached to the upper surface of the rear carriage 9, and a connecting member 27 having one end fixed to the carriage drive belt 26 is connected to the carriage position adjusting device 60. The carriage position adjusting device 60 includes a U-shaped support body 61 fixed to the upper surface of the rear carriage 9, a screw shaft 62 pivotally attached to the support body 61, and a support body 61.
Of the pulley 6 fitted to the screw shaft 62 protruding from one side of the
3, a drive motor 64 attached to the side surface of the support 61,
The pulley 6 fitted to the drive shaft 64a of the drive motor 64
5, a pulley 65 and a belt 66 stretched around the pulley 63. Then, the screw hole 67 formed at one end of the connecting member 27 is screwed into the screw shaft 62 of the carriage position adjusting device 60, and the connecting member 27 is connected to the carriage position adjusting device 60 as described above.

As described above, the drive motor of the carriage position adjusting device 60 provided on the rear carriage 9 is operated to rotate the drive shaft 64a in the forward or reverse direction, whereby the pulley 65, the belt 66, and the pulley 63 are passed. Screw shaft 62
Is rotated, and the rotation of the screw shaft 62 causes the rear carriage 9 together with the carriage position adjusting device 60 to rotate the screw shaft 62, and the rear carriage 9 is rotated by the rotating screw shaft 62. 2, (see FIG. 4) to the left or right.

By operating the carriage position adjusting device 60 in this manner, the front carriage 6
(Or rear carriage 9) relative to the rear carriage 9
Depending on the correction of the relative positional relationship of (or the front side carriage 6) or the knitting method, the relative positional relationship of both carriages 6 and 9 can be easily shifted.

Therefore, pulleys 28 and 29 are provided integrally with the pulleys 21 and 25, respectively.
8 and 29, and pulleys 31 and 3 provided on both sides of the drive shaft 30.
Belts 33 and 34 are stretched between the two. A belt 38 is stretched between a pulley 35 of the drive shaft 30 and a motor shaft pulley 37 of a drive motor 36 which is a drive source. A clutch 39 and a brake 40 for stopping the rotation of the drive shaft 30 are provided between the pulley 35 of the drive shaft 30 and the pulley 32.

With the above structure, the motor 36, the pulley 3
7, belt 38, pulley 35, drive shaft 30, pulley 3
1, belt 33, pulley 28, pulley 21, belt 2
2, front carriage drive system 4 connected to front carriage 6
1 is formed, on the other hand, motor 36, pulley 37, belt 38, pulley 35, drive shaft 30, clutch 39, brake 40, drive shaft 30, pulley 32, belt 34, pulley 29, pulley 25, belt 26, rear side A rear carriage drive system 42 that is continuous with the carriage 9 is formed. Further, in order to detect the position of the carriage, a needle selection gauge 43 is attached to the front needle bed 2 and a sensor 44 is attached to the front carriage 6.
Is provided.

When the front and rear needle beds 6 and 9 are to be reciprocated in synchronism with each other, the brake 40 is released with the clutch 39 engaged and the motor 3
Rotate 6. This rotation is equally transmitted to the drive systems 41 and 42, and the front carriage 6 and the rear carriage 9 reciprocate in a synchronized state.

When only the front carriage 6 is reciprocated, the brake 40 is operated with the clutch 39 disengaged, and the motor 36 is rotated. At this time, the rotation is transmitted to the drive system 41 that reciprocates the front carriage 6 in the same manner as described above, but the clutch 39 is disengaged in the drive system 42 that reciprocates the rear carriage 9 as described above. No power is transmitted to the rear carriage 9 and the rear carriage 9 remains stopped.

Next, FIGS. 6 to 12 show a second embodiment of a flat knitting machine according to the present invention. In this embodiment, the structure of the carriage position adjusting device 70 is different from that of the above-described embodiment, and the driving force of the drive motor 36, which is the drive source, can be transmitted to any one of the front carriage 6 and the rear carriage 9. Is done.

That is, the motor shaft 36 of the drive motor 36
a pulley 37 provided on a and a pulley 3 provided on the drive shaft 30
A belt 38 is stretched between the drive system 4 and the drive system 4 so that the transmission of the drive force can be intermittently performed in each of the drive systems 41 and 42 which are rotationally transmitted by the drive shaft 30.
Clutches 50, 51 in the range of 1, 42 respectively,
Braking brakes 52 and 53 for stopping the rotation of the drive shaft 30 are provided.

When both the front and rear carriages 6 and 9 are operated, the rotation of the drive motor 36 is transmitted to both drive systems 41 and 42 by operating both clutches 50 and 51, and if necessary. Accordingly, when only one of the carriages 6 and 9 on the front side or the rear side is moved, either one of the clutches 50 and 51 may be operated. At this time, the brakes 52 and 53 of the inactive drive systems 41 and 42 are operated to prevent the inactive carriages 6 and 9 from moving. Further, the rear carriage 9 is also the front carriage 6.
Since there is a case where the robot moves in a state that is not synchronized with, it is necessary to detect its position. Therefore, the rear needle bed 3 is provided with a needle selection gauge 43b, and the rear carriage 6 is provided with a sensor 44b.

However, on the upper surface of the rear carriage 9, the carriage 9 itself is slightly propelled to adjust the relative position of the front carriage 6 and the rear carriage 9. A device 70 is provided.
That is, in the carriage position adjusting device 70, a U-shaped support body 71 is fixed to the upper surface of the rear carriage 9, and a drive motor 73 is provided on the upper surface of the support body 71 and a motor shaft is provided on the upper surface of the carriage 9. 72a is attached so as to hang down. A worm 74 pivotally supported by the support 71 is provided on the motor shaft 72a. This warm 7
The worm wheel 75 engages with the support shaft 7 so that
It is rotatably supported by the support body 71 via 6. A cam 77 is formed at the rear portion of the worm wheel 75, and the cam 77 is fitted to the support shaft 76 while being inclined. Further, two cam followers 78, 78 are provided on the sliding piece 79 so as to sandwich the cam 77. The sliding piece 79 is incorporated in a part of the support 71. The sliding piece 79 is connected to one end of a connecting member 80 fixed to the belt 26 that reciprocates the rear carriage 9.

When the carriage position adjusting device 70 adjusts the relative positions of the front carriage 6 and the rear carriage 9, the drive motor 73 is operated to rotate the worm 74 and the worm wheel 75. The cam 77 also rotates with the rotation of the worm wheel 75 (for example, rotation of several degrees to several tens of degrees). On the other hand, cam follower 7
Since the sliding piece 79 provided with 8, 78 is in a state of being fixed to the belt 26 via the connecting member 80, the position of the sliding piece 79 is held. Therefore, the rotation of the cam 77, which is inclined with respect to the support shaft 76, gradually increases the contact with the cam followers 78, 78 (one of the cam followers 78) of the cam 77, as described above. In order to maintain the position of the sliding piece 79, the supporting piece 71 provided with the cam 77
The rear-side carriage 9 provided with is slightly moved in the desired traveling direction to the left or right of the carriage 9. In this way, the relative positions of the front carriage 6 and the rear carriage 9 are adjusted.

FIG. 13 shows a phase difference control block diagram of the front and rear carriages 6 and 9, and FIG. 14 shows the front and rear carriages 6 and 9.
9 is an example of a case where the carriage position adjusting devices 60 and 70 are provided on the front carriage 6 or the rear carriage 9 (or the front and rear carriages 6 and 9) to perform the phase difference control.

[0029]

As described above, in the flat knitting machine of the present invention, since the carriage position adjusting device is provided on at least one of the front carriage and the rear carriage, the relative positions of the front and rear carriages. When a deviation occurs in the actual position, the carriage position can be easily adjusted by operating the carriage position adjusting device. Further, depending on the knitting method, even when the carriages must be used by shifting the relative positions of the front and rear carriages, this can be easily done by operating the carriage position adjusting device.

Further, in this flat knitting machine, both carriages on the needle beds opposite to each other can be reciprocated in a synchronized state or only one carriage can be reciprocated. Therefore, for example, in bag knitting, by shifting the front and rear carriages from each other, the cam boxes on the carriages are shifted, and the knitting cams have four phases, whereby knitting can be performed in each phase.
Further, it becomes possible to adjust the change of the knockover timing in the knitting of the rubber knitted fabric. Furthermore, as in the case of flat knitting,
It is possible to adjust the positions of the front and rear cam boxes to an arbitrary position, for example, by waiting the cam box not used for knitting outside the knitting area.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment according to the present invention,

FIG. 2 is a rear view of an embodiment according to the present invention,

FIG. 3 is a side view of an embodiment according to the present invention,

FIG. 4 is a plan view of a carriage position adjusting device according to one embodiment,

5 is a partial cross-sectional side view of FIG. 4,

FIG. 6 is a front view of another embodiment according to the present invention,

FIG. 7 is a rear view of another embodiment according to the present invention,

FIG. 8 is a side view of another embodiment according to the present invention,

FIG. 9 is a partial cross-sectional side view of a carriage position adjusting device according to another embodiment,

FIG. 10 is a perspective view of a main part of a carriage position adjusting device according to another embodiment,

FIG. 11 is a front explanatory view of a carriage position adjusting device according to another embodiment,

FIG. 12 is a side view of a carriage position adjusting device according to another embodiment,

FIG. 13 is a front / rear carriage phase difference control block diagram,

FIG. 14 is a front / rear carriage phase difference control flowchart,

[Explanation of symbols]

 2 ... front needle bed, 3 ... rear needle bed, 4, 5, 7, 8 ... guide rail, 6 ... front carriage, 9 ... rear carriage, 60, 70 ... carriage position adjusting device,

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[Procedure amendment]

[Submission date] March 26, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

However, when knitting a rubber knitting, when the stitches knitted by the needles of the front and rear needle beds are not uniform, conventionally, the timing is adjusted by cutting a stitch cam which directly affects the knockover timing. and it had been addressed, the work is troublesome, also is intended to cornerstone of skill. Further, when knitting the flat knitting structure, the cam box is forced to reciprocate even though either of the front and rear cam boxes is not used. Therefore, the life of the knitting machine itself is shortened.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

However, in the above-mentioned flat knitting machine including the conventional flat knitting machine, the belt for reciprocating by connecting the carriages stretches during repeated use. As a result, a slight deviation occurs in the relative positional relationship between the front and rear carriages. In order to correct the relative positional relationship of this delicate deviation, it is difficult to make a delicate adjustment only by operating each belt that reciprocates each carriage. Therefore, in order to correct this deviation has to the position correction and the like cutting the stitch cam as described above, was that the work is troublesome and also essential skill.

Claims (6)

[Claims] 1. A flat knitting machine in which a large number of needles are arranged in parallel on each needle bed attached to the front and back and a carriage having a cam for operating these needles is supported by a guide rail on each needle bed, A flat knitting machine characterized in that each carriage is in a non-tethered state, each carriage is provided with a separate drive system, and at least one carriage is provided with a carriage position adjusting device. 2. A drive system for separately driving the front and rear carriages provided on the front and rear needle beds, respectively, is connected to one drive source, and a drive system for one of the front and rear carriages is provided therebetween. The flat knitting machine according to claim 1, wherein a clutch is provided therein. 3. The flat knitting machine according to claim 2, wherein a braking device for stopping the lateral movement is provided on one of the front and rear carriages provided with a clutch in the system. 4. A drive unit for driving the front and rear carriages.
The flat knitting machine according to claim 1, wherein a clutch is provided in each of the two drive systems, and the drive system is connected to one drive source via the clutches. 5. The flat knitting machine according to claim 4, wherein a braking device for stopping driving is provided between a clutch provided in each of the two drive systems and a carriage driven by each of the drive systems. 6. A driving device for driving front and rear carriages.
The flat knitting machine according to claim 1, wherein a drive source is provided for each of the two drive systems.