JP3464430B2 - Stretcher for tubular knitted fabric - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an improvement in a stretcher for tubular knitted fabric.

[0002]

2. Description of the Related Art As a conventional stretcher for a tubular knitted fabric, there is, for example, the one described in the specification and drawings of Japanese Patent No. 2935142. This stretcher is
A stand, two supports movably arranged along a horizontal guide rod fixed to the stand, and an excitation axis capable of moving these supports in opposite directions along the guide rod. ing. Each support has upper and lower drive wheels.

A substantially vertical stretcher arm is supported on each support. The stretcher arm comprises a pulley connected to a belt for supporting the tubular knitted fabric and two supporting devices. Each support device comprises a support roll having an outer surface shaped circumferentially and having an angled shaft. The support roll is adapted to be driven by the associated upper or lower drive wheel. In addition, each stretcher arm is provided with a respective idling ring that contacts the upper and lower drive wheels, respectively, with the circumferentially contoured outer surface of the support roll engaging the surface of the idling ring.

The tubular knitted fabric is a stretcher
It is supported by a belt wound on the line of a pulley that idles on an arm and along the contours of the upper and lower drive wheels and the plane of the idle ring. Thus, without stopping the stretcher, ie,
The expansion width of the tubular knitted fabric can be changed without removing the tubular knitted fabric from the stretcher.

In this stretcher, the idler ring of the stretcher arm has its outer peripheral edge portion in contact with the outer peripheral edge portion of the drive wheel, and its circular contour portion has angled shafts from both front and back sides. It is sandwiched by the outer peripheral edge portions of the support rolls. Therefore, the stretcher arm cannot be removed without removing the support roll with the angled shaft.

By the way, for the maintenance of the stretcher, thread scraps and the like are easily clogged and dusts such as dyes are easily stuck between the drive portion of the stretcher, especially between the drive wheel, the support roll and the idle ring. , Stretcher arms often need to be removed. However, in the conventional stretcher as described above, the removal of the stretcher arm is not easy and the maintenance work is troublesome.

Further, in this stretcher, the tubular knitted fabric is formed between the outer peripheral edge portion of the idler ring of the stretcher arm and the outer peripheral edge portion of the drive wheel, and the circular contour portion of the idler ring and its front and back surfaces. Since it is sandwiched between the outer peripheral edge portions of the support rolls on both sides and guided in a state of being bent at an acute angle, there is a risk that creases may be formed after expansion.

[0008]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to make it possible to freely change the expansion width of a tubular knitted fabric while continuously operating it, and to easily perform maintenance, and to make a crease on the expanded tubular knitted fabric. (EN) Provided is a stretcher for tubular knitted fabric, which does not have to be attached.

[0009]

In order to solve the above-mentioned problems, according to the present invention, a gantry, at least one horizontal guide rail arranged on the gantry, and the guide rail along the same. A pair of movable bodies mounted so as to be slidable, a drive means for moving the pair of movable bodies in mutually opposite directions, and arranged inside the tubular knitted fabric and detachable from each of the pair of movable bodies. A fixed body that is fitted and supported, and each of the pair of movable bodies is arranged at a distance from each other in a horizontal direction orthogonal to the movement direction of the movable body, and has a vertical rotation axis. A pair of first drive rollers that are rotationally driven around,
Arranged at intervals in the horizontal direction orthogonal to each other,
A pair of second drive rollers that are driven to rotate around a horizontal axis of rotation are provided, and the pair of second drive rollers are arranged so as to project toward the movable bodies facing each other. And a pair of first idle rollers having a vertical rotation axis, which are rotationally driven by simultaneously contacting the outer peripheral surfaces of the corresponding first driving rollers of the movable body, and the outer peripheral surfaces of which correspond to the first idle rollers. The second of the movable body
A pair of second idle rollers having an inclined rotation shaft, which is driven to rotate by contacting the upper outer peripheral surface of the drive roller at one point, is provided, and the rotation shafts of the pair of second idle rollers are on the horizontal plane. Is arranged so as to be located inside the rotation axis of the corresponding second drive roller of the movable body, and the tubular knitted fabric is provided on both sides thereof with the first drive roller of the movable body. It is guided between the corresponding first idle roller of the fixed body, and between the second drive roller of the movable body and the corresponding second idle roller of the fixed body, which are sandwiched from both front and back sides. A tubular stretcher for knitted fabric is provided which is adapted to be conveyed and conveyed.

According to a preferred embodiment of the present invention, each of the fixed bodies is vertically spaced from the pair of first idle rollers in a horizontal direction orthogonal to the moving direction of the movable body. At least one third idle roller having a different axis of rotation is provided, said third idle roller being connected to said first idle roller associated therewith via a belt for supporting and guiding said tubular knitted fabric. The belt and the third idle roller are rotationally driven by the rotational drive of the related first idle roller.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a plan view of a stretcher for tubular knitted fabric according to an embodiment of the present invention. In FIG. 1, reference numeral 1 is a mount, and on the mount 1,
Two parallel horizontal guide rails 2a and 2b are attached. A pair of movable bodies 3 and 4 are attached to these two guide rails 2a and 2b so as to be slidable along them. Two guide rails 2
A horizontal actuating shaft 5 is arranged in parallel between a and 2b. Screws in opposite directions are provided on both sides of the actuating shaft 5 in the length direction. Working shaft 5
Is rotatable about an axis by driving a motor 6. Fixed bodies 7 and 8 arranged inside the tubular knitted fabric are detachably fitted and supported on the movable bodies 3 and 4, respectively.

As shown in FIG. 1, the tubular knitted fabric Fb to be expanded is provided on both sides thereof between the movable body 3 and the fixed body 7 and between the movable body 4 and the fixed body 8, respectively. It is guided in a state of being sandwiched between the front and back sides and conveyed in the direction of arrow A.

FIG. 2 is an enlarged plan view showing the movable body 3 and the fixed body 7 on the left side of FIG. 1, and FIG.
It is sectional drawing which followed the line. In addition, FIG. 4 shows YY of FIG.
It is sectional drawing which followed the line. In addition, in FIG. 2, a part of the configuration is omitted for clarity. Each movable body 3, 4
And each fixed body 7, 8 has the same structure. Therefore, the configurations of the movable body 3 and the fixed body 7 on one side will be described below, but this also applies to the movable body 4 and the fixed body 8 on the other side.

As can be seen from FIG. 3, a threaded bush 9 is integrally provided on the lower surface of the movable body 3, and the bush 9 is engaged with the related screw of the actuating shaft 5.
When the actuation shaft 5 is rotationally driven, the pair of movable bodies 3 and 4 move in opposite directions by the same distance. In this way, the expansion width of the tubular knitted fabric Fb can be reduced or increased by moving the pair of movable bodies 3 and 4 toward or away from each other. In addition,
In FIG. 3, 10a and 10b are guide rail receiving portions, and 27a and 27b are tubular knitted fabric drawing rollers.

As shown in FIGS. 2 to 4, the movable bodies 3 are spaced from each other in the horizontal direction (direction parallel to the conveying direction of the tubular knitted fabric) orthogonal to the moving direction of the movable bodies 3. A pair of first drive rollers (upstream side first drive roller 11a and downstream side first drive roller 11b), which are spaced apart and are driven to rotate about a vertical rotation axis, are spaced from each other in the orthogonal horizontal direction. A pair of second drive rollers (an upstream side second drive roller 17a and a downstream side second drive roller 17) that are arranged apart from each other and are driven to rotate about a horizontal rotation axis.
b) and are provided. The upstream and downstream second drive rollers 17a and 17b are arranged so as to project from the related movable body 3 toward the opposing movable body 4 side. These upstream side and downstream side first drive rollers 11a, 11b
Each pair, and the upstream and downstream second drive rollers 17
Each pair of a and 17b has the same structure. Therefore, although one first and second drive rollers 11b and 17b will be described below, this also applies to the other first and second drive rollers 11a and 17a.

As can be seen from FIG. 2, the movable body 3 has upstream and downstream motors 12a and 12b. Then, as shown in FIG. 4, the pulley 14b provided on the vertical rotation shaft 13b of the first drive roller 11b and the pulley 16 provided on the rotation shaft of the related motor 12b are connected by the belt 15b. ing. Also, the second
The drive roller 17b, the pulley 18b provided on the rotary shaft 13b of the related first drive roller 11b, and the movable body 3
A first intermediate pulley 19 with a vertical axis of rotation provided on the
A belt 21b is stretched between b and the second intermediate pulley 20b having a horizontal rotation axis. Thus, the rotational drive of the motor 12b simultaneously drives the related first and second drive rollers 11b and 17b in the direction in which the tubular knitted fabric is conveyed.

In this case, the upstream first and second drive rollers 11a and 17a are independently rotated by the upstream motor 12a, and the downstream first and second drive rollers 11b and 17b are independently rotated by the downstream motor 12b. It is designed to be driven. Thus, the rotational speeds of the first and second drive rollers 11a and 17a on the upstream side of the fixed bodies 3 and 4 and the first and second drive rollers 11b and 17b on the downstream side.
By changing the rotation speed of each of them (usually, the rotation speed of the drive roller on the downstream side is made faster and overfeeding is applied). The rotation speeds of the drive rollers 11a and 17a and the first and second drive rollers 11b and 17b on the downstream side.
The bending speed and inclination of the knitted fabric of the tubular knitted fabric Fb to be conveyed can be corrected by changing the rotation speed of the. In addition to this, by driving the motor 6 to change the interval between the pair of movable bodies 3 and 4, the expanded width of the transported tubular knitted fabric Fb can be freely changed.

FIG. 5 is a view showing the fixed body 7,
(A) is a plan view and (B) is a side view. Note that FIG.
In (B), the structure is partially omitted for clarity.
As shown in FIGS. 2 and 5, the outer peripheral surface of each of the fixed bodies 7 is rotationally driven by simultaneously contacting the outer peripheral surface of the upstream first drive roller 11a of the movable body 3.
A pair of upstream first idle rollers 2 having a vertical rotation axis
2a and 22b, and a pair of first downstream idle rollers 23a and 23b having a vertical rotation axis that is driven to rotate by the outer surfaces of the first and second driving rollers 11b simultaneously contacting each other. Has been. The pair of upstream side idle rollers 22a and 22b and the pair of downstream side first idle rollers 23a and 23b have the same structure.

Further, the fixed body 7 has an outer peripheral surface which comes into contact with the upper outer peripheral surface of the upstream second drive roller 17a of the movable body 3 at one point to be rotationally driven. A second idle roller 24a and a downstream second idle roller 24b having an inclined rotation axis, which is driven to rotate by contacting the outer peripheral surface thereof with the upper outer peripheral surface of the downstream second drive roller 17b at one point, are provided. Has been. The upstream and downstream second idle rollers 24a,
24b has the same structure. In this embodiment, as shown in FIG. 4, the rotation shafts of the upstream and downstream second idle rollers 24a and 24b are the rotation shafts of the upstream and downstream second drive rollers 17a and 17b, respectively.
= An angle of about 17 ° is formed.

Further, as can be seen from FIG. 2, the rotary shafts of the upstream and downstream second idle rollers 24a and 24b are respectively projected on the horizontal plane by the upstream and downstream second drive rollers 17a and 24a. It is arranged so as to be located inside the rotation axis of 17b.

Thus, as can be seen from FIG. 4, the tubular knitted fabric Fb has the first drive rollers 11a and 11b of the movable body 3.
And the corresponding first idle roller 22 of the fixed body 7
a, 22b; 23a, 23b, and between the second drive rollers 17a, 17b of the movable body 3 and the corresponding second idle rollers 24a, 24b of the fixed body 7 sandwiched from both sides. Guided and transported.

Each pair of upstream and downstream first idle rollers 22a, 22b; 23a, 23b of the fixed body 7 and second upstream and downstream idler rollers 24a, 2b.
4b are arranged in the above-described positional relationship with respect to the upstream and downstream first drive rollers 11a and 11b and the upstream and downstream second drive rollers 17a and 17b of the movable body 3 concerned. By the fixed body 7
Can be detachably fitted to and supported by the movable body 3, and even if each roller is rotationally driven in a state where the fixed body 7 is fitted in the movable body 3, the fixed body 7 is removed from the movable body 3. It is prevented from rising, thereby maintaining the smooth and stable conveyance of the tubular knitted fabric Fb.

As shown in FIGS. 2 and 5, one upstream side of the fixed body 7 in the horizontal direction (direction parallel to the transport direction of the tubular knitted fabric Fb) orthogonal to the moving direction of the movable body 3. The upstream third idle roller 25a having a vertical rotation axis arranged at a distance upstream from the first side idle roller 22a, and the upstream idle roller 22b at a distance downstream from the other upstream idle roller 22b. An intermediate third idle roller 25b having a vertical rotation axis and a downstream third idle roller 25c having a vertical rotation axis spaced apart from one downstream first idle roller 23b on the downstream side.
And are provided.

Further, the upstream third idle roller 25a
Is a belt 26 for supporting and guiding the tubular knitted fabric Fb.
The intermediate third idle roller 25b is connected to one upstream first idle roller 22a via a, and the intermediate third idle roller 25b is connected to the other upstream idle roller via a belt 26b for supporting and guiding the tubular knitted fabric Fb. 22b, and the third downstream idler roller 25c is connected to the tubular knitted fabric F.
It is connected to one downstream first idle roller 23b via a belt 26c for supporting and guiding b. In this case, the upstream third idle roller 25a, the intermediate third idle roller 25b, and the downstream third idle roller 2
5c are associated belts 26a, 26b, 2 respectively
The position of the rotary shaft can be adjusted by known means in order to keep 6c always under tension.

The belt 26a and the upstream third idle roller 25a, the belt 26b and the intermediate third idle roller 25b, and the belt 26c and the downstream third idle roller 25c are related to the upstream first idle roller 22a. , 22b, 23b are rotationally driven in the direction in which the tubular knitted fabric is conveyed,
The tubular knitted fabric Fb has these belts 26a, 26b, 2
It is supported and guided by 6c.

Thus, according to the tubular knitted fabric stretcher of the present invention, the expanded width of the tubular knitted fabric can be freely changed while continuously operating. Moreover, since the tubular knitted fabric is not guided while being bent at an acute angle while being transported, it is possible to prevent the tubular knitted fabric from being scored after expansion. In addition, since the fixed body can be easily removed from the movable body, maintenance of the stretcher is easy.

[0027]

As described above, according to the present invention, it is possible to provide a stretcher for a tubular knitted fabric in which the expanded width of the tubular knitted fabric can be freely changed during continuous operation and the maintenance is easy. You can

[Brief description of drawings]

FIG. 1 is a plan view of a stretcher for tubular knitted fabric according to an embodiment of the present invention.

FIG. 2 is an enlarged plan view showing a movable body and a fixed body on the left side of FIG.

3 is a sectional view taken along line XX of FIG.

4 is a cross-sectional view taken along the line YY of FIG.

FIG. 5 is a view showing a fixed body, (A) is a plan view,
(B) is a side view.

[Explanation of symbols]

1 stand 2a, 2b Guide rail 3, 4 movable body 5 Working shaft 6 motor 7, 8 fixed body 11a, 11b First drive roller 12a, 12b motor 17a, 17b Second drive roller 22a, 22b, 23a, 23b First idle roller 24a, 24b Second idle roller

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-6-142359 (JP, A) Actual development Sho-49-292 (JP, U) JP-B 56-27631 (JP, B1) JP-B 5- 24263 (JP, B2) JP 62-6030 (JP, B2) JP 1-14712 (JP, Y2) JP 2002-529609 (JP, A) JP 2935142 (JP, B2) US 3175272 (US) , A) European patent application publication 267880 (EP, A 1) International publication 00/026460 (WO, A1) (58) Fields investigated (Int.Cl. ⁷ , DB name) D04B 15/88 D06C 5/00

Claims (2)

(57) [Claims] 1. A pedestal, at least one horizontal guide rail arranged on the pedestal, a pair of movable bodies attached to the guide rail so as to be slidable along the guide rail, and the pair of movable bodies. The pair of movable members includes drive means for moving the body in opposite directions, and a fixed body disposed inside the tubular knitted fabric and detachably fitted and supported by each of the pair of movable bodies. In each of the bodies, a pair of first drive rollers, which are arranged at intervals in the horizontal direction orthogonal to the movement direction of the movable body and are driven to rotate about a vertical rotation axis, are orthogonal to each other. A pair of second drive rollers, which are arranged at a distance from each other in the horizontal direction and are driven to rotate around a horizontal rotation axis, are provided, and the pair of second drive rollers project toward the opposing movable bodies. And a pair of vertical rotating shafts, which are rotationally driven by simultaneous contact of the outer peripheral surfaces of the respective movable bodies with the outer peripheral surfaces of the corresponding first movable rollers of the movable body. A first idle roller and a pair of second idle rollers having an inclined rotation axis, which are driven to rotate by contacting the outer peripheral surface of the corresponding second drive roller of the movable body with the upper outer peripheral surface at one point. The rotation shafts of the pair of second idle rollers are arranged such that their projections on the horizontal plane are located inside the rotation shafts of the corresponding second drive rollers of the movable body, and On both sides of the knitted fabric, between the first drive roller of the movable body and the corresponding first idle roller of the fixed body, and the second drive roller of the movable body and the fixed body corresponding thereto, respectively. Between the second idle rollers, it is guided while being sandwiched between the front and back sides,
A stretcher for tubular knitted fabric, which is characterized by being transported. 2. Each of the fixed bodies is arranged at a distance from the pair of first idle rollers in the horizontal direction orthogonal to the moving direction of the movable body, and has at least one vertical axis of rotation. The third idle roller of
The third idle roller is connected to the first idle roller related thereto through a belt for supporting and guiding the tubular knitted fabric, and the belt is driven by the rotational drive of the related first idle roller. The tubular stretcher for knitted fabric according to claim 1, wherein the third idle roller is driven to rotate.