JPH0359188B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method and apparatus for automatically conveying products such as panty hose, stockings, socks, etc. from a toe knitting machine to a drawer.

(b) Prior Art European Patent No. 057055 discloses a horizontal axis carousel toe knitting machine with paired horizontal tubes to a vertical axis carousel drawer with flat molds arranged in paired horizontal dials. Discloses an apparatus for conveying pantyhose products to a machine. The flat mold has a thermal resistor and is configured in the form of two hinged elements to provide a hook-like closure. Said device is characterized in that the attachment station of the drawer is opposite the removal station of the toe knitting machine, and
A pair of molds of one device are mutually positioned so that they are coplanar and aligned with a pair of tubes of the other device.

The conveying device has a carriage which can be moved horizontally alternately between the stations of the two said machines and which is provided with a hook for the press-actuating engagement of the elastic edges of the panty hoses to be conveyed. ing. During the travel of said carriage towards the drawer, the body of the panty hose is first turned over and then transported to fit into the corresponding mating mold of the drawer. Such a conveying device is
It has the disadvantage of providing a slow processing pace due to the idle stroke of the carriage conveyor and of forming a rigid interaction device between the toe knitting machine and the drawer, so that a stoppage of one of said machines will cause a stoppage of the other. resulting in an unavoidable cessation of
Excessively reduces overall equipment efficiency.

(C) Problems to be Solved by the Invention The present invention provides a toe knitting machine that can transport products such as panty hose, stockings, socks, etc. from a carousel horizontal axis toe knitting machine to a drawer machine having a pair of vertically fixed dies. The machine can be operated independently of each other, with the possibility of manually attaching it to the conveying device in the event of a stoppage of the drawer and, furthermore, removing the pantyhose product from the toe knitting machine to the rest recovery store in the case of a stoppage of the drawer. It is intended to overcome the drawbacks of the above devices by realizing a machine that can.

(d) Means for solving the problem According to the present invention, the fact that this problem refers to pantyhose products is also valid for stockings and socks, and the idea is to use a method that can apply the following operations. This is achieved by adopting

Holding the panty hose by its body elastic edge, transfer the product from the toe knitting machine station and turn the panty hose product inside out and the entire panty hose product.

Transfer the inverted pantyhose elastic rim to the gripping means that moves intermittently towards the drawer, unfold the elastic rim into a vertical rectangular structure, and place it on a horizontal plane and in a predetermined position corresponding to the mounting position of the drawer. Place the expanded elastic edges in sequence.

The elastic edges of the panty hose thus spread out are picked up and the panty hose is transferred from below so that the panty hose legs fit into the two vertical fixing molds of the drawer.

According to a preferred embodiment of the invention, a device for automatically conveying products such as pantyhose from a toe knitting machine to a pantyhose drawer comprises the following:

There is an arm with two grippers which correspond to the side ends of the elastic rim of the pantyhose barrel which are fitted into a pair of tubes of the toe knitting machine in the mounting station. This arm is fixed to a carriage that is given a linear reciprocating motion to grip the elastic edge of the pantyhose, and is also able to take the pantyhose out of the device, turn the elastic edge over, and turn it completely inside out in a hanging position. Hold the pantyhose in place.

The horizontal intermittent rotary table has multiple work stations. This table supports many horizontal arms with elements that can extend vertically.
Each arm is adapted to take the elastic edge of the pantyhose, which is extended from the toe knitting machine by the aforementioned pair of grippers, and, with the pantyhose suspended, is spread out into a rectangular shape on a vertical plane, and then spread out on a horizontal axis. Place the unfolded pantyhose elastic rim in a horizontal position under the two vertical fixed molds of the drawer by rotating it backwards around the drawer and around the vertical axis. Its tip is bent downward. At the same time, place the pantyhose body seam in an intermediate vertical plane with respect to the drawer mold. This pre-positions the panty hose legs to fit over the mold.

The two arms have two horizontal, parallel, horizontally extensible forks and are associated with a carriage that is given vertical reciprocating motion and is positioned rearwardly with respect to the drawer mold. During the downward movement, the fork enters the elastic rim of the pantyhose, lifting it from the corresponding arm of the rotary table, and during the subsequent upward movement, the pantyhose leg is fitted over the fork. Place the pantyhose body around the mold by using the following method. Means are provided for removing the panty hose from the fork.

The solution proposed by the invention allows the conveyance of products such as pantyhose between two machines. One of the machines is for knitting the forenails, the other for pulling out the product, maintaining mutually independent movements. This is based on the possibility of automatically transferring the product from the toe knitting machine to the stationary store and manually mounting the product on the intermediate section of the device. All this in a very fast output space (2.5 per pantyhose)
seconds).

(E) Embodiment For example, the method of the present invention for automatically conveying products such as pantyhose from a so-called "SOLIS4" type toe knitting machine to a so-called "Wepamat" type drawer machine consists of the following operations.

Grasp the side end of the stretched elastic edge of the pantyhose from a toe knitting machine that is compatible with the removal station.

Transferring the panty hose out of the toe knitting machine by a horizontal movement, maintaining the elastic edge of the panty hose in the vertical plane.

Turn the elastic rim and the entire pantyhose spread out in this way.

Grasp the oriented elastic edge of the pantyhose hanging from the toe knitting machine.

To direct the elastic edge of a panty hose in a vertical plane and stretch it while keeping it in a drooping state while the panty hose is intermittently conveyed along a curved path toward a drawer.

The elastic edge of such unfolded pantyhose is rotated 90 degrees around the horizontal axis to orient it in the horizontal plane, so that the inside of the pantyhose can be accessed from above and fitted into the inverted vertical version of the drawer. Place it in advance.

Rotating the flared elastic rim around a vertical axis to preposition the vertical seam of the panty hose before fitting the panty hose onto the drawer mold in a vertical plane in the middle of said mold. thing.

Pulling up the panty hose elastic rim so that the panty hose leg fits over the drawer mold.

In the event of a stoppage of the toe knitting machine, it can be manually attached to the panty hose conveyor at a station on the path to the drawer.

In the event of a stoppage of the withdrawal machine, products such as panty hoses can be removed from the toe knitting machine to their outlet, for example, across a stationary store (so-called Solpark type).

The device for conveying products such as pantyhose based on the method described above (indicated by LJ in Fig. 1) consists of a toe knitting machine T of the so-called "SOLIS4" type and a "Wepamat" type, equipped with the known device _T1 for automatic attachment. It is placed between the drawer W and the drawer W.

The first section A is provided corresponding to the removal station TS of the toe knitting machine T (FIGS. 2 and 6A), and is connected to the next track 11, carriage 1.
2. It has a gripper 13.

Horizontal tracks 11 are arranged parallel on the two tubes 1. The tube 1 supports and pneumatically turns over products such as the panty hose of the toe knitting machine T. Track 11 is longer than tube 1. The carriages 12 can be moved alternately on the tracks 11. two grippers 1
3 is supported on the carriage 12 and is arranged in such a way that it can grip the elastic edge 5' of the panty hose 5 at the point of maximum horizontal spacing. The tip 14 of the gripper is flattened and one side is fixed,
The other can rotate. The simultaneous opening of each gripper is carried out by a corresponding pneumatic cylinder 1 operated according to the program.
This is done by the rod 16 of 7. Simultaneous closing of each gripper is effected by a corresponding return spring 18 upon release of the associated pneumatic cylinder 17.
Each gripper 13 is simultaneously locked to each other to provide 180 degrees of rotational movement about a vertical axis out of the product such as the panty hose 5.
Grasp the elastic edge 5' and then turn it over.

The second section B is provided between the removal station TS of the toe knitting machine T and the attachment station CW of the drawer W, and has a bench 21, a support member 23, and a link 32 (see FIG. (up to Figure 7, Figure 11).

The bench 21 has a plurality of stations (for example,
It has a plurality of surfaces corresponding to the overhanging horizontal intermittent rotary table 22 that stops at 6). One of them is the removal station for the toe knitting machine T.
Established in response to TS. The other one is provided corresponding to the mounting station CW of the drawer W.

A plurality (e.g., six) of support members 23 are mounted on the table 22 at equal angular intervals and driven in rotation about 120 degrees about corresponding vertical axes, with radii determined based on the positions taken at the various table stations. oriented about a vertical axis in a direction.
For this purpose, the vertical axis 24 of each support member 23
is provided with a gear 25 at its lower end that meshes with a corresponding gear 26. Gear 26 is bench 21
A roller 27 is provided which fits within an annular groove 28 of. The shape of the annular groove 28 is offset with respect to the axis of the table 22.

A horizontal arm 29 is provided associated with each support member 23 and has two posts 30. Its free end is 2
Two opposing beaks 31 are supported. One beak 31 is fixed and the other beak 31 can move on the corresponding post. these are,
Provision is made to raise the panty hose from the grippers 13 by simultaneous stretching of the elastic edges 5' to create a rectangular shape. Arm 29 is also driven in alternating 90 degree rotations on its own axis to provide orientation of column 30 either vertically or horizontally.

Link 32 is connected to a programmed pneumatic cylinder 33. A link 32 is stretched over the table 22 and fixed to the bench 21 to close the beak 31 of the arm 29. The arm 29 corresponds to the removal station TS of the toe knitting machine T.
The opening of the beak is done by its own weight or by conventional return spring means following actuation of the pneumatic cylinder 33.

The third section C is provided corresponding to the mounting station CW of the drawer W, and includes a structure 41,
The carriage 45 has an extractor.

A vertical fixing structure 41 is arranged rearwardly with respect to the mold 4 of the drawer W and rings the track 42 and the chain 43 on the gearwheel 44. Below that, table 2 of the second section B was constructed using conventional means.
2 or from a separate motor.

The carriage 45 is connected to the track 42 by means of a chain 43.
It slides over the top and has two parallel arms 46. Its curved facing end 46' is extended horizontally. For this purpose, the arm 46 has a corresponding tooth 47
is provided. A corresponding toothed vertical rod 48 passing through the carriage 45 engages the tooth 47. The rotations are programmed in one direction or the other and, in cooperation with idler gears 49 placed between the arms 46, move towards and away from each other.

An extractor such as a vibration buffer 50 is placed laterally from at least one of the types of drawer W. Its programmed action removes the pantyhose 5 from the arm 46. Alternatively, if the extractor is 2
One having two shelves 51 may be fixed.
The corresponding nozzle 52 of 2 blows air onto the panty hose 5 near the arm.

(F) Operation As soon as the toe knitting machine T transports the finished panty hose, ie the product with knitted toes, to the removal station TS, the gripper 13 of the first section A takes the elastic edge 5' of the panty hose 5.
The elastic edge 5' is stretched around the turning table 1 of the toe knitting machine T at the point of maximum horizontal distance.
Thereafter, the carriage 12 moves towards the end of the tube 1 and over it, while the suction of the pantyhose leg 5'' into the tube 1 turns that leg over.
The gripper 13 turns the elastic lip 5' over by rotating it 180 degrees outward from the pantyhose. When the carriage 12 reaches the end of its stroke relative to the exit from the toe knitting machine T, the two pairs of horizontal beaks 31 of the arms 29 of the table 22 hold themselves inside the elastic edges of the panty hose gripped by the grippers. To detect. At this time, table 2
2 is stopped at the first station 51 of the second section B. At this time, the rest of the panty hose is hanging down. Thereafter, as the carriage 12 returns to the center of the toe knitting machine T, the clockwise rotation of the table 22 causes the arm 29 to be carried along with the panty hose to the second station 52. After the pause, up to the third station 53, the third station 53 and table 2
2 and the fifth station 55, the arm 29 is rotated 90 degrees downwardly out of the table 22 on its own axis. The support member 23 is rotated counterclockwise on its own axis by about 120 degrees so that at the fifth station 55 of the table the elastic edge of the rectangular expanded pantyhose becomes horizontal and the shape of the drawer W is It is placed under the tip of the mouth, with the mouth opening facing upward. Meanwhile, the seam of the drooping pantyhose body lies in the vertical plane in the middle of mold 4.

At this point, the carriage 45 of the third section C is at a level higher than the flared edge of the panty hose and below the tip of the mold 4 of the drawer W and is lowered. End 4
6'' enter the elastic edges 5' of the panty hose 5, they are pulled wide and thereby stretch the panty hose elastic edges. While the carriage continues its downward movement, the second section It is pulled out from the beak 31 of B's arm 29. Then,
The carriage 45 is raised again until the leg 5'' of the panty hose 5 is fitted onto the mold 4. The upper stroke limit of the panty hose is limited by the release of the end 46', which is similar to that of the buffer 50. If so, it is determined by the actuation of the extractor, otherwise by the end of the pantyhose elastic rim 5' abutting the overlying fixed extractor 51.

Between the fifth station and the first station of table 22, arm 29 rotates on its own axis 90 degrees upwards. As the support member is rotated counterclockwise about its own axis, the support member 23
is returned to the first station 51 on the table 22. Arm 29 and beak 31 are in the same starting position.

When the device operates under normal conditions, table 22
During each pause, a panty hose is conveyed from the toe knitting machine T to the corresponding arm 29 of the table 22. At the same time, another panty hose is conveyed from another table arm 29 to the end 46' of arm 46 of carriage 45. The carriage 45 is in a position corresponding to the drawer.

When the toe knitting machine T stops, the table 22
arm 29 is manually attached to the second station 52 of the table. On the other hand, if the drawer machine W stops, products such as pantyhose will be transferred to the toe knitting machine T.
It may be removed onto the store 3 lying below.

Finally, what is the toe knitting machine T and the drawer machine W?
Since it also works with stockings and socks, the device according to the invention tends to transport these products from the first to the second machine.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view of a conveying device for products such as pantyhose according to the present invention inserted between a toe knitting machine and a drawer. 2 is a simplified side view of the apparatus of FIG. 1; FIG. FIG. 3 is a detailed front view of the gripper for gripping the panty hose at the mounting station of the toe knitting machine before the gripping stage; FIG. 4 is a side view of the gripper shown in FIG. 3. FIG. 5 is a side view of the gripper of FIG. 3 after gripping the elastic edge of the pantyhose. 6 and 6A are detailed side views of the pantyhose elastic rim before and after everting actuated by the pair of grippers of FIG. 3; FIG. FIG. 7 is a detailed front view of the arm provided with the extensible element of the transport rotary table in the first station (corresponding to the removal station of the toe knitting machine) before gripping the panty hose in the state of FIG. 6A; FIG. 8 is a side view of FIG. 7. FIG. 9 is a side view of FIG. 7 after the pantyhose in the state of FIG. 6A is grasped. FIG. 10 is a detailed front view of FIG. 9. FIG. 11 is a plan view of a table for transporting products such as pantyhose from a toe knitting machine to a drawer. FIG. 12 is a detailed plan view of the fork for fitting the panty hose on the mold of the drawer before leaving the corresponding arm of the transport table; FIG. 13 is a front view of the arm in FIG. 12. FIG. 14 is a plan view of the arm of FIG. 12 after the panty hose has left the corresponding arm of the transfer table; FIG. 15 is a front view of the arm in FIG. 14. 1st
Figure 6 is a plan view of the arm of Figure 14 approaching the end of the upward stroke with the vibrating extractor; FIG. 17 is a front view of the arm in FIG. 16. Figure 18 is a plan view of the arm of Figure 14 approaching the end of the upward stroke with a fixed extractor; FIG. 19 is a front view of the arm in FIG. 10.
Figure 20 is a front view of the arm of Figure 19 of the pantyhose removed onto the drawer mold; T: Toe knitting machine, W: Pulling machine, TS: Removal station, CW: Installation station, 1:
Inverted tube, 4: Mold, 5: Pantyhose, 5':
Elastic rim, 5″: leg.

Claims (1)

[Scope of Claims] 1. A method for automatically transporting a product such as panty hose from a horizontal axis carousel-type claw end knitting machine T to a drawer W having a pair of vertical molds 4, which method comprises the following steps. In a first section A provided corresponding to the removal station TS of the toe knitting machine T, (a) grasp the elastic edge 5' of the panty hose 5 spread around the pair of tubes 1 of the toe knitting machine T; thing. (b) conveying the elastic rim of said flared oriented panty hose from said pair of tubes; (c) While sucking the leg 5'' of the panty hose 5 into the tube 1 and turning the entire panty hose inside out, turn it over so that the expanded elastic edge is on the front side. Downstream of the toe knitting machine T. and in the second section B upstream of said drawer W, (d) opening into a rectangular shape by pulling the unfolded elastic edges 5'' while leaving the rest of the panty hose hanging; (e) (f) rotating the expanded pantyhose elastic rim about a horizontal axis in order to place the rectangular opening in a horizontal position allowing access to the pantyhose from above; (f) the vertical seam of the dangling pantyhose; (g) rotating the expanded panty hose elastic edge around a vertical axis in order to place the panty hose on the vertical plane between the pair of vertical molds 4 of the pulling machine W; (g) placing the panty hose on the pulling machine W; Returning the supporting means of the elastic edge of the pantyhose to the initial position after the conveyance; (h) in a third section provided corresponding to the drawer W; 2. Complete pulling up of the panty hose legs 5'' onto the molds 4 by pulling them up around a pair of molds 4. 2. A method according to claim 1, characterized in that steps (a-d) are carried out successively at a first work station (51). 3 The step (e-f) is performed from the 353rd to the 45th
4 and 454 to 5th work station 55
2. A method according to claim 1, characterized in that the process is performed during each pass through. 4. The method of claim 1, wherein said step (h) is performed in said steps (a-d) simultaneously with said fifth work station. 5. The method of claim 1, wherein step (g) is performed from step 555 to step 656 and from step 656 to the first work station 51 and simultaneously during the passage of steps (e-f). 6. Method according to claim 1, characterized in that, instead of steps (a-f), the pantyhose elastic rim 5' can be manually placed in a configuration corresponding to the end of step (f). 7. A device for automatically conveying products such as pantyhose from a toe knitting machine T to a drawer W based on one or more of the methods described in claims 1 to 6, comprising: Automatic transport device. The first section A corresponding to the removal station TS of the toe knitting machine T consists of a carriage 12, which is driven by a linear reciprocating movement on a horizontal track 11 arranged on the everting tube 1 of said toe knitting machine T. , the carriage is equipped with two grippers 13 which grip the elastic rim 5' of the panty hose 5 supported by the tube 1 at the point of maximum horizontal distance and remove the elastic rim 5' from the toe knitting machine T. carry the panty hose leg 5'' into the everting tube 1 and turn over the elastic edge 5' while turning over the entire panty hose by suctioning air into the reversing tube 1 to connect the removal station TS of the toe knitting machine T and the attachment station CW of the drawer W. A second section B, inserted between the An equal number of support members 23 are mounted, with corresponding horizontal arms 29 supporting two sets of vertically extendable beaks 31 and gripping the elastic edges 5' of the panty hose 5 from the pair of grippers 13 of said first section A. The pantyhose is then stretched out into a rectangular opening while hanging down, and said arm 29 and support member 23 are able to rotate about their own axes to bring the elastic edge 5' of the stretched pantyhose into a horizontal position and into a rectangular opening. placed on the tip of the mold 4 of the drawer W, with the longitudinal seam of the panty hose 5 in the middle vertical plane of said mold, so that it is returned to its initial position on the first station of the table; The third section C, which corresponds to
6' introduces the end 46' through the opening of the pantyhose during the downward movement of the carriage 45 and pulls out the elastic lip 5' from the beak of the arm 29 of the second section B; During the subsequent upward movement, the pantyhose leg 5'' is fitted onto the mold of the drawer W. 8 One of the tips of each gripper 13 is engaged with the rod 16 of the corresponding pneumatic cylinder 17 and its program is The combined action causes the gripper to open, and its closing action causes the pneumatic cylinder 17 to open.
8. Device according to claim 7, characterized in that the return spring (18) is obtained after release of the . 9. Claim characterized in that said gripper 13 is driven outwardly from the pantyhose to simultaneously rotate 180° about its own vertical axis, allowing everting of the elastic edge 5' of the gripped pantyhose. The device according to item 7. 10 a small roller 27 guided in an annular groove 28 of the bench 21 on the vertical axis of the support member 23;
A gear 25 is mounted on the lower end of the member 23 in mesh with a corresponding gear 26 with 8. Apparatus according to claim 7, characterized in that it is adapted to allow rotation of the associated support member (23) in one direction and in the other direction between the fifth and first stations. 11 First station 51 of the table 22
8. Device according to claim 7, characterized in that the closing of the beak (31) of the arm (29) corresponding to the support member (23) arranged at the support member (23) is effected by a lever (82) engaging a programmed pneumatic cylinder. 12 Extension of the end 46' of said arm 46 is effected in one direction or the other by rotation of a vertical toothed rod 48 which engages teeth 47 on one of said arms 46, and the other arm 8. Device according to claim 7, characterized in that the first gear is engaged by means of an idler gear (49) inserted between the arms. 13. The elastic edge 5' of the panty hose 5, after the leg 5'' is fitted onto the mold 4 of the drawer W,
8. Device according to claim 7, characterized in that the pantyhose is withdrawn from said arm (46) by an extractor of a buffer (50) which presses the pantyhose against at least one of the molds (4). 14 The pantyhose elastic edge 5' is attached to the arm 4 after the leg 5'' is fitted onto the mold 4 of the drawer W.
8. Device according to claim 7, characterized in that it is extracted from the end 46' of the arm 46 by two fixed extractors 51 which intercept the part of the elastic rim 5' released from the end 46' of the arm 46. .