JPH0346157B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to automatic sewing technology, and in particular to a flexible fabric storage device that sequentially aligns soft fabric in a predetermined direction without wrinkles and unloads the fabric from the first input. It is related to.

[Conventional technology]

Automatic sewing equipment must feed cut fabric parts to the sewing process, but in the sewing process where fabric is a flexible material, it is difficult to synchronize the sewing lines, and there is a risk of accidents involving the sewing equipment. If this occurs, it may be necessary to store the fabric to be processed upstream of the sewing device. However, considering the ease of sewing work, etc., it is necessary to supply the fabric parts to be processed in a state in which they are aligned to some extent without wrinkles in the next process, but since it is difficult to grip and control the posture of flexible fabrics, Generally, in conventional sewing lines, the fabric parts are fed manually.

[Problem to be solved by the invention]

Therefore, there is a problem in that complete automation of the sewing line cannot be achieved, and the operation rate of the automatic sewing device cannot be improved because the line is manually operated.

The present invention has been made in view of the above-mentioned problems, and provides a flexible cloth stocking device that sequentially arranges the soft cloth without wrinkles and unloads it in a predetermined direction in a sewing line of an automatic sewing device. The purpose is to

[Means to solve the problem]

A flexible fabric storage device according to the present invention includes a plurality of fabric part gripping mechanisms that grip or release fabric parts, a posture correction mechanism that regulates the fabric parts to a predetermined posture while the fabric parts are being held, and the fabric parts that are held in the fabric parts. a transfer stock mechanism equipped with a circulation transfer means for circulating the part gripping mechanism; a first-in, first-out means for sliding and stopping the transfer means at a desired position; A conveyor belt that places and transfers the vine fabric parts, a pair of cloth correction bars that expand and contract in the width direction at a predetermined timing on the conveyor belt, and a cloth correction bar that is located at the front end of the cloth correction bar and blows out air in the downstream direction. The gist of the present invention is to consist of a turn-up correction mechanism consisting of an air jetting structure, and a control mechanism that drives and controls each of the above-mentioned mechanisms in a correlated manner.

[Effect]

The supplied fabric parts are gripped one by one by the gripping means of the fabric part gripping mechanism, and are transferred to the turning correction mechanism by the transfer stock mechanism. At this time,
Since the dough part gripping mechanism and the transfer stock mechanism constitute a dough posture correction mechanism that regulates the dough part to a predetermined posture during the gripping,
The fabric parts carried out from the transfer stock mechanism are supplied to the turning correction mechanism in an aligned posture. Next, the fabric parts are expanded in the width direction by a pair of fabric correction bars on the conveyor belt of the turn correction mechanism, and the turns and wrinkles are corrected by air jetted in the downstream direction. It is then supplied to the next process.

〔Example〕

Hereinafter, one embodiment of the flexible cloth stocking device according to the present invention will be described with reference to the drawings. fabric part gripping mechanisms 2, 2..., and a posture correction mechanism 6 constructed on the upstream side of the transfer stock mechanism 1.
A line is formed by the turn-up correcting mechanism section 7 configured on the downstream side, and operates at a predetermined timing according to a drive control signal from a central control device (not shown).

As shown in FIGS. 2 and 3, the transfer stock mechanism 1 includes an endless chain belt 12 mounted on chain sprockets 11, 11 that are axially installed on the upstream and downstream sides.
are installed horizontally and are constantly driven to revolve in the direction of arrow A during operation by a motor 13 whose speed is controlled by a central control device, and on both sides of the endless chain belt 12 are a pair of opposing channel members. guide tracks 14, 14 are constructed so as to have orbits parallel to the endless chain belt 12.

As shown in FIGS. 4 to 6, each dough part gripping mechanism 2 pivotally installed on the transfer stock mechanism 1 is attached to suspension brackets 22, 22 protruding from the left and right sides of the upper surface of the base 21. , a pair of traveling rollers 23, 23, .
A traveling body is constructed that orbits along the trajectory of No. 4. Further, reference numeral 24 denotes a running sprocket which is rotatably mounted on a drive shaft 26 rotatably mounted on a bearing bracket 25 protruding from the upper surface of the base 21 and meshed with the endless chain belt 12. A ratchet gear 2 is attached to the other end of the drive shaft 26.
7 is pivoted, and a travel lever 28 is pivotably mounted on the bearing bracket 25 via a pin shaft,
A ratchet pawl 2 protruding from the tip of the travel lever 28
9 is elastically biased by a spring in the direction of constant engagement. The travel lever 28 has an engagement bar 30 protruding from its end, which is configured to move the guide track 14 to an empty clamp standby position (arrow B), a grip position (arrow C), and a stock standby position (arrow D). When engaged with the engagement ends 32 of the stop mechanisms 31a, 31b, and 31c, the ratchet mechanisms are disengaged by being pressed in the direction of arrow E, and the traveling sprocket wheel 24 rotates idly. The engagement bar 3 is operated by an air cylinder 33 controlled and driven by a central controller.
It is driven in and out with respect to the zero movement trajectory. Reference numeral 34 denotes a clamp fixed to the lower end of a clutch shaft 36 that is slidably (arrow F1) and rotatably (arrow F2) installed in a sliding bearing hole 35 protruding from the center of the base 21. A jaw plate 38 extending rearward is fixed to the lower end of the support bracket 37, and at the base of the jaw plate 38 is a presser plate 40 which is swingable (arrow G) via a butterfly plate 39. They are pivoted so that they are spaced apart. Further, an auxiliary bracket 41 protruding from the support bracket 37 is pivotally mounted with a cam member 43 that comes into and out of contact with the upper surface of the presser plate 40 and presses the presser plate 40 against the jaw plate 38 against the elasticity of the spring 42. At the same time, a pair of cam operating protrusions 44a and 44b protruding from the pivot shaft are provided in different directions. Reference numeral 45 designates a needle support rod whose base end is pivotably pivoted relative to the support bracket 37 and whose swing end is pivoted to the piston rod of the air cylinder 46d. When the air cylinder 46a, which is driven by a control signal from the central controller, expands, the air supply port 46b connects to the air intake port 46c, and the support needle 47 is pivoted so that its length can be adjusted freely.
is actuated to contact and displace the jaw plate 38. When the cam operating protrusion 44a engages with the joint end 49 of the fabric gripping auxiliary bracket 48a configured at the stock position (arrow H) of the guide track 14, the cam member 4
3 rotates, and the presser plate 40 holds the dough parts against the jaw plate 3.
8 and grip it. In addition, the operating protrusion 4
4b is a fabric release assisting bracket 48b configured at the fabric release position (arrow I) of the guide track 14.
When engaged with the engaging end 49 of the support needle, the cam member 43 rotates in the opposite direction to release the fabric part held between the presser plate 40 and the jaw plate 38. 47 fabric release support bracket 48
The c-side engaging end 49 is pivotally installed via an air cylinder 50 that is driven by a control signal from a central controller.

The posture correction mechanism section 6 also includes a posture control drive mechanism 61 configured in the transfer stock mechanism section 1, a bevel gear type clutch 51 pivotally attached to the upper end of the clutch shaft 36 of the dough part gripping mechanism section 2, and a dough part supplying mechanism 61. A coupler 65 is formed of a bevel gear type and is fixed to the tip of a drive shaft 64 which is configured by a conveyor 62 and is slidably and rotatably mounted on a bearing member 63 of the attitude control drive mechanism 61. It has a structure that connects and separates from the clutch 51 and transmits the drive, and also slides (arrow F1) by the expansion and contraction of the air cylinder 66 to control the clamp mechanism 34 up and down, and the rotation angle is controlled by the position control motor 67. (arrow F2)
Control. The dough parts supply conveyor 62 is
A conveyor belt 68, which is rotated at a predetermined speed by a motor (not shown), is installed horizontally and is located below and upstream of the transfer stock mechanism section 1.

As shown in FIGS. 7 to 9, the roll-up correcting mechanism section 7 located downstream and below the transfer stock mechanism section 1 includes a dough parts discharge conveyor 7.
The conveyor belt 72 is installed horizontally on the conveyor belt 1 and is rotated at a predetermined speed by a motor (not shown). The cloth handling structure 73 has an endless drive belt 76 installed horizontally between pulleys 75, 75 rotatably mounted on both sides of a machine frame 74, and the cloth handling structure 73 is controlled and driven by signals from a central controller. A pair of cloth correction bars 77, 7 made of linear materials are driven in forward and reverse rotation by a sorting motor 76, and have their base ends fixed to the upper and lower construction parts, respectively, in the center of the endless drive belt 76.
7 are arranged adjacent to each other on the conveyor belt 72, and the cloth correction bars 77, 77 are expanded and contracted in the direction of the arrow J by driving the cloth handling motor 76.

Further, the air blowing structure 81 is connected to the cloth handling structure 73.
A pair of air jetting bars 83, 83 are arranged along the respective air jetting bars 83, and the base ends are rotatably pivoted via rotating shafts 82, 82. The air cylinders 84, 84 have a structure in which they are raised (arrow K) via a link mechanism, and high-pressure air is supplied from an external air supply device (not shown) to small holes drilled in the air jet bars 83, 83. The structure is such that the liquid is ejected from the holes along the surface of the conveyor belt 72.

The flexible fabric stocking device having the above structure is operated by a central control mechanism (not shown) according to an example of the flowchart shown in FIG. The fabric parts a to be processed are grasped one by one by the fabric part gripping mechanism 2 transferred by the transfer stocking mechanism 1 and transferred to the position of the turning correction mechanism 7, and at that position, a supply command is issued. The state is maintained in a standby state until the supply command is issued, and the fabric parts a are fed one by one to the turning correction mechanism section 7 for each supply command, and the wrinkles and turns of the fabric parts a are removed by the fabric handling structure 73 and air is ejected in this section. After being removed by the structure 81, it is transported and supplied to, for example, a sewing machine by the conveyor belt 72.

Next, the function of correcting the posture of the fabric parts in the flexible fabric storage device having the above structure will be explained with reference to FIG.

As shown in FIG. 11a, the dough part a moves on the dough part supply conveyor 62, and the dough part gripping mechanism 2 stops at the gripping position (arrow C) (the engagement bar 30 is engaged with the travel stop mechanism 31b). The ratchet mechanism is disengaged by being pushed in the direction of arrow E by the end 32, and the traveling sprocket wheel 24 is in an idle state. When the cloth detection sensor S detects the supplied cloth part a (FIG. 11b), the air cylinder 66 is driven and the clamp mechanism 34 is lowered. Next, the expanded clamp mechanism 3
4 (FIG. 11c), the air cylinder 46d is extended by a drive signal from the central controller in response to a detection signal from the cloth detection sensor S, and the support needle 47 pierces the fabric part a. , in this state (FIG. 11d), the air cylinder 66 is driven,
Raise the clamp mechanism 34. Next, when the engaging end 32 of the traveling stop mechanism 31b is moved backward, the ratchet gear 27 and the ratchet pawl 29 engage with each other to prevent the traveling sprocket wheel 24 from rotating. It moves in the direction of arrow A (FIG. 11e) together with the circular drive of the endless chain belt 12. Due to this movement, the fabric part a is held at one point by the support needle 47 of the clamp mechanism 34.
In order to suspend the fabric part a while it is pierced through
hangs down due to its own weight with respect to the piercing position, and has a fixed direction due to the principle of "plumb bob", that is, it performs the "function of correcting the posture of the fabric parts".

When it moves further and reaches the stock position (arrow H), the engaging end 49 of the fabric gripping auxiliary bracket 48a
engages with the cam action protrusion 44a to rotate the cam member 43 and close the clamp mechanism 34. Thereafter, the support needle 47 is released from the jaw plate 38 by the engaging end 49 of the fabric release assisting bracket 48c. As a result,
The dough part a suspended by the dough part gripping mechanism 2 is gripped with its posture corrected.

Furthermore, if the preceding fabric part gripping mechanism 2 is stopped between this position and the fabric release position (arrow I), the rear end of the preceding fabric part gripping mechanism 2 collides with the engagement bar 30, causing the ratchet. The mechanism is disengaged and the traveling sprocket wheel 24 becomes idle.

When the fabric part gripping mechanism 2 reaches the fabric release position (arrow I), the engaging end 49 of the fabric release auxiliary bracket 48b engages with the cam actuating protrusion 44b to reverse the cam member 43 and release the clamp mechanism 34. Open. The dough part a removed from the clamp mechanism 34 is transferred from the transfer stock mechanism section 1 to the turn-up correction mechanism section 7.

Fabric part gripping mechanism section 2 releasing the fabric part
is driven by the endless chain belt 12 and returns to the empty clamp standby position (arrow B).

As described above, the plurality of dough part gripping mechanisms 2 circulately drive the transfer stock mechanism 1 by the endless chain belt 12, grip the dough parts at the gripping position (arrow C), and hold the dough parts at the stocking position (arrow H). ) to stock the fabric parts and release the fabric at the position (arrow I).
Since the fabric parts are released in the process, the fabric parts that came in first are always released first, thus fulfilling the so-called "first-in, first-out stock function."

Next, the operation of the curl correction mechanism section 7 will be explained according to FIG. 12.

When the fabric part gripping mechanism 2 approaches, the pair of fabric correction bars 77, 77 are in the closed state in the center,
The air jetting bars 83, 83 stand by in an expanded state (FIG. 12a). In this state, when the fabric part a reaches the shoulders of the fabric correction bars 77, 77, the air jetting bars 83, 83 are closed (FIG. 12b),
Expand while blowing out air from here (Fig. 12c)
do. The dough part gripping mechanism 2 continues to move in this state and is released at a position where all the dough parts a are placed on the upper surface of the conveyor belt 72 (FIG. 12 d).
do. The released fabric part a is fabric correction bar 7
7, 77, and then expand both cloth correction bars 77, 77 (Fig. 12e)
Then, the dough part a is transferred to the next process while being rolled up and wrinkled in the width direction on the conveyor belt 72.

Next, an embodiment of the dough part gripping mechanism section 20, which constitutes a forced posture control mechanism for the dough parts, will be described with reference to FIGS. 13 to 15. (Structural parts that are the same as those of the dough part gripping mechanism 2 are given the same reference numerals and explanations will be omitted.

In this embodiment, the clamp mechanism 340 fixed to the lower end of the clutch shaft 36 is different, and a rod-shaped clamp is attached to the base of the jaw plate 38 fixed to the lower end of the support bracket 37 via a hinge block 390. A presser arm 400 provided with a clamping member 450 is pivotally mounted to be swingable (arrow G). The presser arm 400 is
The base end of the air cylinder 46d is pivotally connected to the piston rod end of the air cylinder 46d, which is pivoted to the support bracket 37, and the dough supplied from the dough parts supply conveyor 62 is moved between the jaw plate 38 and the clamping member 450 by the expansion and contraction of the air cylinder 46. It has a structure that holds or releases part a. Further, reference numerals 69 and 69 refer to the posture correction mechanism section 6.
A pair of dough posture detection sensors are configured upstream of the dough parts delivery position of the dough parts supply conveyor 62 in , and detect the end position of the dough part a supplied to the dough part gripping mechanism section 20, and from this detection, the central control mechanism Tilt over and measure your posture. The measured value is determined by the attitude control drive mechanism 61 of the attitude correction mechanism section 6.
is output as a rotation angle control signal for the clutch 51.
The clutch shaft 36 is rotated through the material part a.
The rotation of the clamp mechanism 340, which is on standby, is controlled.

Fabric posture control when using the fabric part gripping mechanism 20 having the above configuration will be described with reference to FIG. 16.

When the dough part a fed onto the dough part supply conveyor 62 moves (FIG. 16a) and the dough attitude detection sensors 69 detect the attitude (bent state with respect to the moving direction) of the dough part a, the gripping position is The clamping mechanism 340 of the fabric part gripping mechanism 20, which is stopped at (arrow C), changes the posture of the fabric part a by the position control motor 67 configured in the posture control drive mechanism 61 of the posture correction mechanism 6. It turns accordingly and waits (Fig. 16b). Next, when the cloth end enters the expanded clamping mechanism 340 (FIG. 16c), the air cylinder 46d extends and clamps the cloth part a between the clamping member 450 and the jaw plate 38, and then the position control motor 67 While rotating the clamp mechanism 340 back to its original position, the clamp mechanism 340 is raised by the operation of the air cylinder 66 (FIG. 16d). Next, the dough part gripping mechanism 20 is moved to the stock position by the endless chain belt 12 of the transfer stock mechanism 1 while holding the dough part a (FIG. 16e).

Therefore, the attitude of the dough part a is corrected for the next process by "accepting the rotation and returning the dough part a" by the dough part gripping mechanism 20.

〔Effect of the invention〕

As described above, the flexible fabric stocking device according to the present invention stores fabric parts supplied by a large number of fabric part gripping mechanisms, a transfer stocking mechanism, a turn correction mechanism, and a control mechanism in a first-in, first-out manner. At the same time, during this stocking, the posture is corrected to align the orientation of the fabric parts, and in order to supply the fabric to the next process in a state in which curls and wrinkles are smoothed out, a stocker is installed that unmannedly handles the flexible fabric on the sewing line of the automatic sewing machine. It is possible to construct a device, and the effects after implementation of the present invention are extremely large.

[Brief explanation of drawings]

Fig. 1 is a schematic front view showing the overall configuration of a flexible fabric stocking device according to the present invention, Fig. 2 is a front view of the transfer stocking mechanism, Fig. 3 is a plan view thereof, and Fig. 4 is a fabric part gripping device. A front view of the mechanism, FIG. 5 is a right side view, FIG. 6 is a plan view, FIG. 7 is a front view of the turning correction mechanism, FIG. 8 is a left side view, and FIG. 9 is a plan view. , FIGS. 10a to 10c are flowcharts showing the operation of the control system of the apparatus of the present invention, FIGS. 11a to 11e are explanatory diagrams showing the function of correcting the posture of the dough part by the dough part gripping mechanism, and FIGS. 12a to e 13 is a front view showing another embodiment of the fabric part gripping mechanism; FIG.
The figure is a right side view of the same, FIG. 15 is a plan view of the same, and FIGS. 16 a to 16 e are explanatory diagrams showing the function of correcting the posture of the dough part by the dough part gripping mechanism. DESCRIPTION OF SYMBOLS 1... Transfer stock mechanism section, 2, 20... Fabric part gripping mechanism section, 6... Posture correction mechanism section, 7...
...Folding correction mechanism section, 12...Endless chain belt,
14...Guide track, 21...Base, 23...
...Traveling roller, 24... Traveling sprocket wheel, 28... Traveling lever, 31a, 31b, 3
1c... Travel stop mechanism, 34, 340... Clamp mechanism, 46a, 46d, 50, 66, 84...
Air cylinder, 48a... Fabric gripping auxiliary bracket, 48,, 48c... Fabric release auxiliary bracket,
51...Clutch, 61...Attitude control drive mechanism,
62... Dough parts supply conveyor, 68, 72...
...Conveyor belt, 69...Dough posture detection sensor, 73...Fabric handling structure, 77...Fabric correction bar,
81... Air blowout structure, 83... Air blowout bar,
400... Presser arm, 450... Clamping member, a...
fabric parts.

Claims (1)

[Scope of Claims] 1. A large number of dough part gripping mechanisms that grip or release dough parts; A posture correction mechanism that regulates the dough parts to a predetermined posture while gripping the dough parts; and the dough part gripping mechanisms. A transfer stock mechanism equipped with a circulation transfer means for circulating the transfer, a first-in, first-out means for sliding and stopping the transfer means at a desired position; and a transfer stock mechanism located downstream of the transfer stock mechanism to hold the fabric parts received from the fabric part gripping mechanism. A conveyor belt that is placed and transferred, a pair of cloth correction bars that expand and contract in the width direction at predetermined timings on the conveyor belt, and an air jetting structure that is located at the front end of the cloth correction bar and blows out air in the downstream direction. A flexible fabric storage device comprising: a turn-up correction mechanism; and a control mechanism that controls the driving of each of the above mechanisms in a correlated manner. 2 The dough posture correcting mechanism section of the dough part gripping mechanism pierces and suspends a part of the dough part with one needle in a swingable manner, and then grips it with the dough gripping means, and holds the dough part. 2. The flexible cloth storage device according to claim 1, wherein the posture is corrected by the own weight of the flexible cloth. 3 The dough posture correcting mechanism of the dough part gripping mechanism is moved by a turning angle by the central control device based on the dough posture detection sensor of the supplied dough part and the detection signal from the sensor, and rotates the dough gripping means when receiving the dough parts. 2. The flexible fabric stocking device according to claim 1, further comprising a posture control drive mechanism for correcting the posture of the fabric part by rotating it back to the original position after gripping the fabric part.