JPS5915675B2 - Machine for piecing mesh products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seaming machine, and more particularly to a machine for seaming net products, which can be used, for example, to make trawl fishing nets or circular fishing nets.

Moreover, the said machine can also be used to make bags for vegetables.

During operation, fishing nets are continuously subjected to large stresses and often break.

Therefore, the seams that join mesh bodies and mesh products must be particularly strong to prevent fraying.

On the other hand, because of the high strength of the ropes used to produce the net products, the net products placed on the machine during splicing can be easily penetrated by the needle into the mesh holes of the net products, and the threads, It should not pierce the rope or knot.

None of the splicing machines that exist today meet the above requirements.

Many structural features of the present invention are similar to machines that seam skin with horizontally positioned needles.

The machines described above have needles and loopers kinematically coupled to a main drive shaft via mechanisms for moving the needles and loopers, respectively.

There is also a feeding mechanism for feeding the material, which mechanism includes a drive roller and a pressure roller with a vertical rotation axis.

The drive roller is connected to the main drive shaft via a power chain device that ensures intermittent movement.

The roller of the feed mechanism that feeds the material is attached directly below the needle.

The fur product to be processed is held in a vertical position between the rollers of the feed mechanism and the fur product is held in a 1-thread chain-stitch seam by the needle and looper.
cyclically moved by two stitch lengths.

The above-mentioned machine is not applicable to net products for the following reasons.

First, the single thread chain stitch seam made with a needle and looper is not strong enough and cannot be easily removed when broken.

Second, the design of the feed mechanism for the processing material does not provide reliable friction between the rollers and the netting.

This is because net products have a net structure and are quite heavy due to the weight of the product.

Additionally, the fact that the needle is mounted on the rollers of the feed machine is suitable for relatively tough hides, but does not allow the needle to pass through resilient mesh such as netting. possible.

The well-known machine for piecing together net products has the Soviet Union inventor's certificate No. 379.
701 (1973, Int, CL DO5b110
8).

The machine includes a needle and a looper mounted above the bed and kinematically coupled to a main drive shaft via a mechanism for moving the needle and looper, respectively.

It also includes a feeding mechanism for feeding the netting provided on the bed, which mechanism includes a device for guiding the netting in the direction of the needle 1, a gripping device for holding said netting during loop formation, and a main drive. Steps for net products that are kinematically connected to the shaft.
a pie-stepped, i.e. stepwise, feeding device;
Equipment for guiding net products, gripping equipment and step pie
The step feed devices are arranged in successive order in the direction of movement of the net product.

A needle movement mechanism is provided for reciprocating the needle in a vertical plane perpendicular to the netting placed in a horizontal position above the bed plate.

Mechanisms for moving the loopers, one above the netting and the other below, are provided for moving the loopers along a curved flat path towards and away from each other. There is.

The device for guiding the netting includes a slideway for transporting the netting to be spliced into a horizontal position, said slideway being made in the form of a board with a canopy and a back stop; And if both products have a mesh cut, it is in the form of a plate member of the gutter member, which includes a spring-loaded pressure roller on a horizontal axis or is linked in a horizontal position, Slideways are constructed in the form of trough members and plate members used when the material is a braided article of some kind, such as a rope cord or the like.

The gripping device that holds the netting during loop formation consists of a toothed rack with spring-loaded gripping feet that is seated in a needle bar groove with folded teeth.

A step-pie-step feeding device for net products includes both a horizontal shaft drive disk and a pressure roller.

The drive of the mechanism is a drive for intermittently rotating said drive disk in steps equal to the stitch length.

The drive disk is kinematically coupled to the rack of the apparatus described above for holding the material to be spliced.

Before seaming the netting, the leading edge is pressed against the backstop and placed on the plate of the device for guiding the netting to be pressed by rollers.

For Hisashi, the device is moved away from the plate at an angle, allowing the needle to enter between, rather than into, the threads or knots of the net.

After the product installed there has moved for a sufficient length,
sent under the gripping feet of the gripping device for holding it;
The product is tightly gripped between the disc and the rollers of the step-pie-step feeder.

The products are furthermore automatically fed by the cyclic action of the racks of the gripping device and the drive discs of the feed device.

By moving the needle and looper through their respective mechanisms, the edges of the product are seamed into a 3-hewn thread chain seam.

This machine can be fitted with different devices for guiding the product when the mesh product is pieced together in a braided section.

The assembled parts are placed in the gutter, while the net products are placed on a board, after which each of the products is fed under the respective gripping foot of the gripping device to be held, and It is fed under the contact rollers of the step-pie-step feeder.

The above mechanism uses 1rrr thread! It can be used to join cut pieces of closed mesh netting that are thicker than n, and it can be used to join netting that has a braided part whose cross section does not exceed 10 rIrrn.

When attaching net products made from thicker threads or ropes, the knots are usually larger or tighter so that areas of the net material with the edges of the products being spliced are created where the needle cannot penetrate particularly. ing.

Even if the product is slightly tilted after passing through the device for guiding the netting, it cannot be guaranteed that the needle will penetrate sufficiently into the part of the netting member.

The object of the invention is to eliminate these drawbacks.The main object of the invention is to change the design and relative position of the feed mechanism for net products, regardless of the mesh size of the net products. or to obtain a seaming machine for net products in which the needles can freely enter the mesh regardless of the thickness of the thread or rope from which the net products are made.

An object of the present invention is to provide a machine for piecing net products, which includes a needle, a plurality of loopers, and a feeding mechanism for feeding the net product, wherein the needle and the plurality of loopers are placed on the bed of the machine. kinematically coupled to a main shaft of a drive source via respective mechanisms for moving the needle and a plurality of loopers, the feeding mechanism being a device for guiding the end piece of the netting toward the needle; a gripping device for holding the net products to be spliced during loop formation; and a drive disk and a pressure roller, each having a horizontal axis of rotation, for feeding the net products in stages kinematically connected to said main shaft. a step-pie-step device, and the guiding device, the gripping device and the stepwise feeding device move the guide device, the gripping device and the stepwise feeding device in the order of the guiding device, the gripping device and the stepwise feeding device in the direction of movement of the net product. In a machine for splicing net products placed on a bed, the device for guiding the end pieces of the net product is provided with a sliding member for feeding the net product in a vertical position, and the sliding member is arranged in a vertical position in front of the bed. resting on the bed essentially parallel to the wall and positioned substantially above the horizontally disposed needles in front of the vertical front wall for suspending the ends of the netting; wherein the gripping device for gripping the hanging end piece of the netting has a horizontal projection, the support surface of which is positioned substantially tangential to the actuating surface of the drive disk of the graduated feed device; The front contour of the horizontal protrusion is formed to widen with a smooth curved surface in the direction of movement of the net product in order to gradually reorient the area close to the edge of the net product to a horizontal pressurized position, and This is achieved by a machine for piecing net products, characterized in that the rear side of the protrusion is connected to a vertical support wall, and the vertical support wall is provided with a canopy parallel to the horizontal protrusion.

The machine for piecing net products according to the present invention, by the design and mounting position of the feed mechanism for the net products, allows the position of the mesh products in the area of loop formation to be at a position where it is easy to open the mesh;
This provides free access of the needle into the product, regardless of the size of the mesh or the thickness of the thread or rope from which the mesh product is made.

Horizontal positioning of the area next to the edge of the netting between the drive disk of the step-pie-step feeder and the working surface of the contact roller ensures reliable friction between the netting and said part. can get.

This allows the netting to be moved without the use of racking mechanisms, such as those typically found in gripping devices for holding spliced netting.

The use of racks is inadequate in certain cases, such as the present invention.

It is the vertical position of the mesh and the open mesh that does not provide uniform and reliable friction between the mesh and the teeth of the rack.

The positioning of the feed mechanism for the netting relative to the needle greatly simplifies the design of the gripping device for holding the netting to be spliced.

The gripping device is part of the mechanism described above.

It ensures that the netting does not move downwards, backwards or upwards during loop formation by means of a set of stops in which the stops are carried out on horizontal projections, canopy members and vertical walls.

Therefore, even if the machine is simple from the standpoint of design, it is a machine that can vary widely in the types of mesh products to be spliced together.

There is a slide member as part of the device for guiding the net product, more specifically, the device for guiding the end piece of the net product (hereinafter simply referred to as the device for guiding the net product), and it is connected to a front plate member connected by a cover. The front plate is formed in the form of a rear plate member with a vertical passage between which adjacent products are provided, the front plate member having a protrusion for holding the product during loop formation; The protrusion is turned in the direction of movement of the netting and lies below the needle when the netting is in the extended position, while the rear plate member is arranged diagonally (with the inlet side of the device facing the bed). slope), and inside the passage there is a movable bushing fixed to the cover for the purpose of easily putting the product into the passage between said plates and stretching it, and the bushing is fed Acts as a stop against the edge of the product,
It operates to select a predetermined number of meshes to be picked up to be pieced together.

The device of the above-mentioned embodiment for guiding the net product is extremely simple as far as its design is concerned and is capable of splicing with high efficiency net products fed continuously into the loop-forming area, the product being able to handle nets of up to 40 rIrrn. It is a product cut from dimensional closed mesh netting products, and it is the most commonly used type of netting products.

If the mesh product to be spliced has a large mesh,
The slide member of the above-described device is in the form of a gutter member and is provided with open longitudinal slits in its sides.

The width of the slit should be larger than the thickness of the thread from which the net product is made, but narrower than the thickness of the knot.

This results in a defined number of meshes being pre-hung onto the gutter product in order to interloop the seams and ensuring the retention of the hanging parts of the mesh product by the picked-up mesh knots.

Regarding nets, what I should point out now is that the characteristics mentioned above, and which I will continue to point out in the future, are the threads used as the material for making net products. A rope is used, but since there are few examples of this, I did not mention the rope.

With the device for guiding the netting of the above-described embodiment, large mesh nettings can be spliced and the cutting cycle is kept strictly.

A mesh pick-up plate member having a horizontal base, a diagonal plate member having a base inclined toward the inlet side, and a nose portion with a horizontal base are arranged in the above-mentioned gutter member in a continuous order from the inlet side to the outlet side. The gutter member is arranged to narrow from the inlet side to the outlet side, and the pick-up plate member has a longitudinal opening slit narrowing in the same direction in the side wall of the gutter member in the area of the diagonal plate member. There is.

The horizontal position of said slit in the transverse wall gradually changes to the vertical position in the base in the base with the nose area, and there is also a leaf spring, and at the outlet side of the gutter member there is a slit. It is attached to the outside of the side wall to reduce the width.

By providing a diagonal member in the gutter member, even when the product is facing vertically downward, it can be stepped or moved in the direction along the slit parallel to the slanted base of the plate member. It is ensured that the netting of the netting remains maximally open even under the tensile forces caused by the squeezing of the netting between the desk and the rollers of the pie-step feeder.

The length of the seam pick-up plate of the gutter member is determined by the period of continuous operation of the machine, in particular corresponding to the length of the netting that falls into the slit of said plate member.

The leaf spring in the trough member nose provides sufficient lateral gripping force to hold the net product and prevent it from spontaneously shifting during loop formation.

Due to the narrowing of the width of the slit determined by the above-mentioned forces, the knots and threads of the seam of the mesh are seen at the outlet of the gutter, and the attached mesh is located on the opposite side from the needle,
This allows needles to easily penetrate the mesh.

The sliding member in the device for guiding the end pieces of the netting has a cross-sectional shape, and one horizontal part is mutually attached to the other horizontal part so that the assembled part joining the netting rests on it. The two horizontal parts may be connected to each other such that an open vertical passage is formed between the two horizontal parts facing each other and for passing adjacent meshworks.

It is also possible for the gripping device for holding the netting to have at least one guide member for guiding the threads during loop formation.

Furthermore, the gripping device for holding the netting has at the end edge of the vertical support wall a guide part configured as part of a horizontal projection and made in the shape of a projection and arranged towards the needles, so that may be configured to contact the guiding end of the guide as the needle moves along the lateral surface of the guide, thereby preventing the needle thread from slipping off the upper surface of the needle during loop formation. .

The guide member may have a sloped portion facing the needle, which is found on the upper side of the visor and to facilitate the slipping of the thread as it passes over the edge of the netting during loop formation. It is.

In the gripping device for holding net products, guide members of other constructions may be provided depending on the design and mutual position of the needles and loopers.

The present invention will be explained in detail below with reference to the drawings.

The machine for piecing net products according to the present invention has a needle 1 mounted horizontally as shown in FIG. 1, and threads 5 and 6 shown in FIG.
, and a first looper 2 and a second looper 3 for forming a chain stitch seam in association with the needle 1 for over-edge seaming of the netting 4 in each prefecture of 7.
On the bed 8 of the machine shown in FIG. 1 is a needle movement mechanism 9,
A first looper moving mechanism 10 and a second looper moving mechanism 11 are arranged, and all of these mechanisms are kinematically connected to the main drive shaft 12.

This machine also has a device 1 for guiding the net product 4 toward the needle 1.
4 and a feeding mechanism 1 that feeds the net product 4 along the line A-A.
3, a gripping device 15 for gripping the net product 4 to be spliced during loop formation, and a device 16 kinematically connected to the main shaft 12 for feeding the net product step by step, i.e. in a step-by-step manner. Includes the guiding device 14, the gripping device 1
5 and the feed device 16 are arranged one after the other in the direction of movement of the net product 4 in a consecutive order.

This machine has a thread tension controller 1 for threads 5, 6 and 7.
7, and a thread guide 18 is mounted in the upper part of the machine above said mechanisms 9, 10 and 11.

The needle 1 has a straight rod-like shape, and as shown in FIG. 3, a thread 5 passing through the needle passes through an eye.

The needle movement mechanism 9 includes a needle carrier 1 for fixing the needle 1.
9, a rod-shaped needle butcher 20 horizontally disposed in a support member 21 fixed to the needle carrier 19 and stationary so as to be movable in the longitudinal direction, and a pair of jaws fixed to the needle butcher 20. It is configured to include a jaw member 22 and a cam 23 attached to the main shaft 12 and disposed between the jaw members 22.

The kinematic coupling described above provides a reciprocating movement for the needle carrier 19 and the needle pusher 20, and for reciprocating the needle 1 in a direction perpendicular to the line A-A along which the netting is fed. belongs to.

The first looper 2 has a shank 24 and, via a horizontal stem portion 26, a shank 24. :! : There is a straight nose part 25 to be connected.

The straight nose portion 25 has an eye through which the thread 6 passes, as shown in FIG.

The first looper moving mechanism 10 shown in FIG. 29 is made in the form of a rod and fits in a stationary vertical slide guide 30 so as to be able to move in the axial direction.

The slide guide 30 is a pipe-shaped member and is located between the line A--A that moves along the net product 4 and the line in which the needle 1 moves, and is located on the side where the needle 1 pierces the net product 4.

The first looper moving mechanism 10 has a crank mechanism 31 and arms 35 and 36, and the crank mechanism 31 has a main shaft 12.
It has a cam connected via a cam rod 32 to a rocker 33 which is attached to and has a stationary shaft 34.

The arms 35 and 36 are fixed to a shaft 34 offset on either side of the shaft 34 in two planes perpendicular to the shaft 34.

The rocker 33 is connected to the shank 29 of the holder 27 via a pivot arm 37.

The second looper 3 has a rod 38 and a nose 39 bent at right angles from it, and a third looper through which the thread 7 passes.
The eye shown in the figure is provided.

The second looper moving mechanism 11 shown in FIG. and also in the longitudinal direction for reciprocating the second looper 3 along a curved path in a plane parallel to the line of motion of the needle 1 and at right angles to the line A-A along which the netting 4 travels. There is a power chain mechanism that reciprocates.

Both kinematic coupling mechanisms are connected to each other by a rod 40, at the end of which there is a rod 38 of the second looper 3 at right angles, and a bar for connecting the rod 38 to the rod 40. There is a holder 41 in the shape of .

The rod 40 is mounted in a movable support member 42 of the transverse reciprocating power chain mechanism and a movable support member 43 of the longitudinal reciprocating power chain mechanism to facilitate the movement of the netting 4. in a plane perpendicular to the line of movement and parallel to the line of movement of needle 1.

Looking in the direction of movement of the net product, the plane where the rond 40 is located is the needle 1
It's on the other side.

The power chain mechanism for lateral reciprocating motion includes a cam 44 attached to the main shaft 12 and made in the shape of a circular cam;
a cam roller 45 mounted at one end of 6 and cooperating with said cam, the opposite end of the shaft 46 being rigidly linked to a movable support member 42 in the form of a cylindrical slide. ing.

The rod 40 is fixed in the slide by means of a keyed joint or a known joint to prevent rotation and is mounted for axial movement.

Axis 46 is perpendicular to rod 40.

The tension spring 47 connected to the lever 48 causes the cam roller 45 to
is pressed onto a cam 44, whose lever 48 is in turn connected to a movable support member 42.

The movable support member 42 is connected to a stationary support member 49, so that the movable support member is rotatable in mutually perpendicular planes, one of which is in which the netting 4 is It is perpendicular to the line of movement A-A, and the other plane is parallel to the line of movement of the needle 1.

Such a connection may be accomplished with a coupling or other similar device, not shown, articulated with well known articulation devices.

The power chain mechanism of the second looper 3 for reciprocating movement in the longitudinal direction includes a crank arm 50 shown in FIG. It has a mechanism.

Rocker 52 has a stationary horizontal axis 53 and arms 54 and 55 fixed to the axis in a plane perpendicular to the horizontal axis.

The arm 54 is pivotally connected to the connecting link 51, while the jaw 56 of the arm 55, located opposite the horizontal axis 53, is pivotally connected to the jaw 57 of the movable support member 43. .

This support member 43 is made in the form of a fork and has a sleeve-like pipe 58 located along a symmetrical axis, which sleeve-like pipe 58 is fitted onto the rod 40 in a mutually rotational manner and It is fixed on the rod 40 so as not to face in the axial direction.

The above-described embodiments of the needle 1, the loopers 2, 3 and the three mechanisms 9, 10 and 11 are preferred embodiments for the machine for the above-mentioned purpose, but the seams obtained with their aid are of high quality between the products. This is because they are connected by strength, and the seams cannot be unraveled.

Each of the parts described above may be implemented in other ways for the purposes of the invention.

In addition, these parts and each mechanism sew the material in a chain stitch three-thread seam condition, with the needles placed horizontally and parallel to each other, but with the other parts pointing in their respective directions. It was used for 1 Singer type sewing machines, etc.

The guide device 14 for the net product 4 has a slide member for feeding the product in a vertical position, the slide member being mounted on the bed 8 approximately parallel to the vertical front wall 59 in FIG. It is located in front of the wall so that it is lowered.

The slide member is mainly arranged above the needle 1.

In the embodiment shown in FIGS. 1, 5a, 5b, 5c and 5d, the slide member includes a front plate member 60 and a rear portion of FIG. 5a connected by a cover 62. There are plate members 61 between which an open vertical passage is provided for joining the two mesh products 4 together.

There is a rounded part 63 on the inlet side of the front plate member 60 to make it easier to feed the product, but there is a protrusion 64 on the outlet side.
The protrusion is arranged so that the needle passes over the protrusion in a forwardly extending position, and the protrusion is for gripping the product to counteract the extrusion force during loop formation. There is a diagonal part 65 facing the bed 8 on the entrance side of the rear plate member 61, which is connected to the plate members 60 and 6.
This is to facilitate the feeding of the product and the stretching of the net product 4 through the passageway between the net products 1 and 1.

On the cover 62 near the rear plate 61 on the exit side of the guide device 14 there is a rounded projection 66 which serves as a slide for carrying out chain stitch seams when the machine is in operation. do.

On the end of the mesh channel, a removable bushing 67
or adjacent to the cover 62.

The shape of the bushing 67 is shown in Figures 5b and 5d.

The bushing 67 serves as a stop for the edge of the product and ensures that a predetermined number of meshes are picked up.

The bushing 67 is fixed to the cover 62 by screws 68 (FIG. 5d).

The guide device 14 is connected to the bed 8 via a stationary support member 69.
can be mounted on top of.

The horizontal support member 70 is arranged on the support member 69 and is connected to the rear plate member 61 by screws 71.

The horizontal portion of the horizontal support member 70 is connected to the support member 69 by the guide device 1.
This is to attach 4.

The design of the above-mentioned device for guiding the net products provided for continuously piecing the net products is extremely simple, and it is most often applied when the net products to be joined are rose mesh, such as a maximum length of 40 mm, and Failure to pick up stitches during seaming is limited to the first or second stitch and does not impair the predetermined shape of the seam.

Otherwise, any failure to pick up would have substantially affected cutting accuracy.

That is, if the mesh to be spliced has a large mesh of 40 mm or more, the guide device 14 of another embodiment shown in FIGS. 6 and 7 can be used in the present invention.

In this embodiment, the slide member guiding the product into the vertical position is in the form of a gutter member 72, as shown in FIG. 6, in which the slide member has a longitudinal slit 73.

The width "a" of the slit is larger than the thickness of the thread from which the netting 4 is made, but smaller than the knots of the netting.

For this purpose, a defined number of meshes can be picked up as children of the mesh to be spliced, and the knots of the picked-up meshes will hold the hanging part of the product.

The gutter member 72 is narrow in width from the inlet side to the outlet side, and has a mesh pick-up plate, i.e., a gearing plate 74 having a horizontal bottom, and a diagonal plate member having a bottom portion sloping in the direction of the inlet side. 75, and also a nose portion 76 having a horizontal bottom, all of which are arranged in consecutive order and in the same direction.

A gutter member 72 is provided in the area between the gear plate 74 and the diagonal plate member 75.
A slit 73 is made in the side wall of the slit, in the bottom of which in the region of the nose 76 the slit gradually changes its horizontal direction into the vertical direction.

The slint T-73 in the horizontal bottom of the nose member 76 becomes narrower toward the outlet side in order to bring together the net products 4 that have been sent separately at the inlet of the gutter member 72.

Vertical ribs 79 and 80 are linked to the bottom as shown in FIG. 7, and bridges 77 and 78, which pass through horizontal supports 81 and 82 in FIG. The upper and lower parts of the gutter member 72 appear to be connected to each other and are separated from each other by a slit 73.

At the same time, the horizontal support 82 of the bridge 78
This is for attaching the gutter member 72 to the.

The guide pin 84 consists of a fixing member 85 having a vertical portion and a horizontal portion, and the action of the pin 89 is similar to that of the protrusion 66 of the cover 62 in the embodiment of the guide device 14 described above and in the guide device 14 of this embodiment. It plays the same role and is fixed to the horizontal support 82 on the front side of the guide device 14 by means of a screw 83.

On the outside of the lateral walls of the nose 76 are fitted plates 87 and 88 for narrowing the slit 73 on the outlet side of the gutter member 72.

The spring 87 in front of the guide device 14 rests on the vertical part of the fixing member 85 of the guide pin 84 in FIG.

A screw 89 is used to adjust the pressing force of the spring 87.

The screw 90 has the same effect as the spring 88 and is welded to the side wall of the trough member 72 on the rear side of the guide device 14 above the eye 91 .

The above-described embodiment of the gutter member 72 of FIG. 6 is suitable when using the guide device 14 for feeding large mesh mesh products.

It is easier to feed the product and experience has shown that the mesh can be opened most fully.

Despite the simple shape of the gutter member 72, the necessary accuracy is achieved in picking up a predetermined number of meshes for splicing.

The simplest embodiment is a gutter member with a slit in its flat bottom, the width of which narrows from the inlet side to the outlet side (not shown).

The embodiment of the guide member 14 of the present invention shown in FIG. 8 anticipates that the meshwork 4 to be spliced may be a meshwork having ends spliced at the braided portion.

The cross-section of each of the front slide member 92 and the rear slide member 93 in the embodiment of the guide device 14 is L-shaped, the horizontal portions 94 and 95 of which are mutually bent, so that they can be attached to the netting. The assembled part is placed on top of it to support it.

The vertical portions 96 and 97 of the slide members are shaped so that the product being processed is visible to the operator.

And each has bosses 98 and 99, and bolt 1
00 pass through the boss, are assembled mutually offset in the direction of movement of the product, and are assembled with nuts, and an open vertical passage is created between the slide members 92 and 93. The base is such that the laid net product 4 to be spliced can pass through the opening.

In order to adjust the thickness of the netting in the above-mentioned passage, the guide device 14 has a screw 102 which is fixed to the vertical part 97 of the rear slide member 93 and which is attached to the front slide member 92. There is a spring 104 in a compressed state and a wing nut 103 passing freely through a slot (not shown) made in the vertical portion 96 of the screw thread 102 between portions 96 and 97. It fits on top of.

A horizontal plate 105 fixed to the vertical part 97 of the slide member 93 is a device for fixing the guide device 14 relative to the support member 69 of the machine.

The front slide member 92 is located on the exit side of the guide device 14.
The horizontal portion 94 projects beyond the longitudinal end of the vertical portion 96 and forms a guide protrusion 106, which has the same effect as the protrusion 66 and guide pin 84 in the previous embodiment of the device.

The above-described device is adapted to attach slide members 92 and 93 to horizontal plate 105 in a platform such that portions 94 and 95 are inclined toward the entrance when horizontal plate 105 is connected to support member 63.
The netting may be attached to the net so as to ensure the opening of the mesh of the netting when the netting is moved.

The stitch length feeding device 16 for the net product 4 shown in FIG. pressure roller 108.

On the working surface of the outer periphery of the drive disk 107 there is a netting 4
Grooved to ensure reliable bonding.

Drive disk 10 via a pair of bevel gears (not shown)
7 is connected to an overrun type clutch 110, and a crank lever 111 of the clutch 110 is connected to a lever device 11.
3, it is kinematically connected to a crank mechanism 112 which carries an eccentric (not shown) mounted on the main shaft 12.

Implementations of the cool latch 110 may be well known.

The amount of rotation of the drive disk 107 is determined by the position of the crank lever 111 of the slide block in a pivot state between the lever of the lever device 113 and the crank lever 111.

The casing 109 includes a support member 114 having a horizontal protrusion 115 fixed to the bed 8, a suspension 116 having a support head 117 and a rod 118, and a pressure roller 10 which is pivotably connected to a fork 117.
a rocker arm 119 having an axle 120 with 8 at each end; a spring 121 fitted on a rod 118 between the projection 115 and the support head 117; said rod projecting above the projection 115; A gripping device for supporting the meshwork 4 to be seamed, shown in FIG. , is made of a cast or welded structure and has a horizontal protrusion 123, and the horizontal protrusion 12-3
There is a vertical support wall 124 on the rear side adjacent to the vertical support wall 124, which projects from the vertical wall in an upper and lower relationship to support the horizontal projection 1.
Parallel to 23 and intersecting with wall 124 is a canopy 125, continuous with the lower part of wall 124 and equidistant from the working surface of drive disk 107 of stitch length feeder 16 is a guard member 126. Yes, that's wall 1
Protrusion 1 on the side opposite to horizontal protrusion 123 with respect to 24
The upper support surface of the horizontal projection 123 includes a foot 127 for fixing the gripping device 15 on the support device of the bed 8, which is connected to the wall 124 at a position below 23 and not shown in the figure. , are arranged tangentially to the working surface of the drive disk 107 of the stitch length feeder 16.

The width of the horizontal protrusion 123 is narrower on the entrance side.

By the transition from the narrow part to the wide part, the horizontal protrusion 1
23 in the form of a clean curve to limit the width at the front of the mesh 23, thereby making it possible to move the edge of the netting 4 in the area forming the loop from a vertical position to a horizontal position. The guard member 126 is wider than the drive disk 107, and its horizontal position is the position where the net product is pressed between the roller 108 of the device 16 and the drive disk 107. The hanging portion of the product 4 is prevented from being under the drive disk 107.

The gripping device 15 for supporting the netting to be spliced includes directional elements for guiding the yarn during loop formation.

These parts include: a protrusion 12 facing the needle 1 and formed by a part of the horizontal protrusion 123 relative to the wall 124;
It is 8.

The device 15 described above is mounted on the bed 8 and, during the movement of the needle 1, the lateral surface of the needle is in contact with the guiding end of the projection 128.

This prevents the needle thread 5 from slipping off the top surface of the needle 1 during loop formation.

The notch 129 made on the upper side of the projection 128 is also an oriented member for guiding the thread 7 of the second looper 3 as it passes over the edge of the net product 4 during loop formation. Operate.

The slope portion 130 which is located on the upper side of the leg portion 125 and bent in the direction of the needle 1 is also a member with orientation so that the thread can easily slide against the thread 7 when the looper 3 moves in the direction of the needle 1. do the work.

It should be pointed out that the orientation of the device 15 as a member is
Other embodiments with the needle 1, the loopers 2, 3 and the mechanisms 9, 10, 11 may be used, for example for cases where the arrangement of the threads is different during loop formation.

The operation of the apparatus of the present invention will be explained below.

Thread 5 shown in Figure 2 from three bobbins not shown in the drawing
, 6.7 or through the thread tension control device 17 and the thread guide 18 of FIG. 1, and then through the eye of the needle 1 of FIG. 1, the first looper 2 and the second looper 3, respectively.

The ends of all three threads are pulled out and then brought together before the three threads are preset in position relative to the drive disk 107 with the help of eccentrics 122 of the casing 109 and then is passed between the drive disc 107 of the feed device 16 and the pressure roller, which ensures a sufficient gripping force to hold the net product of a given thickness.

The predetermined length of the stitch is set by moving a slide block within the overrun clutch 110 of the feeder 16.

After the ends have been brought together, the netting 4 passes through the vertical passage of the guiding device 14 for guiding the netting 4 as shown in FIGS. 1, 5a, 5b, 5c and 5d. between which the ends are preselected taking into account the required number of meshes to be picked up for splicing and which presses the ends against the lower surface of the movable bushing 67.

Said netting is first pressed against the rear plate 61 of the guiding device 14 and straightened along said plate, so that the movement of the netting is caused, as shown in the rod shape in FIGS. 3(a-e). In this direction, the mesh area 131 becomes stretched.

A foot lever (not shown) starts the movement of the machine.

First, before the above mentioned 131 reaches the action area of the needle 1, the thread 5
, 6.7, the chain stitch seam formed around the rounded protrusion 66 on the aforementioned dais is fed under the pressure roller 108 of the stitch length feeder 16.

The shape of the rounded protrusion 66 facilitates the slipping of the loop from its surface.

The netting is then fed into the area of action of the needle 1 and moved manually along the line A--A until the aforesaid 131 is pressed by the roller 108 against the drive disk 107 of the feed device 16.

Thereafter, a step-by-step feeding of the netting 4 takes place automatically, during which movement an area 131 is formed as this part of the netting 4 passes through the device 14, as shown in FIG.
is gradually turned from a vertical position to a horizontal position, and in the vertical position of the netting, this part of the netting 4 will be in the condition when it is passed through the guide device 14, and its horizontal position will be as described above. The net product is connected to the drive disk 107 of the feeding device 16.
and the pressure roller 108, said turn being the ninth position of the gripping device 15.
This is due to the shape of the protrusion 123 shown in the figure.

When the main drive shaft 12 rotates the eccentric cam 23 of the mechanism 9, the needle pusher 20 moves forward, thereby causing the net product 4
The needle 1 and the needle carrier 19 begin to move in the direction of .

At this time, the needle 1 passes over the thread 6 of the first looper 2,
The netting 131 is then pulled roughly across its line of movement as shown in Figure 3a.

At the same time, the looper 2 is located halfway between the uppermost and lowermost positions perpendicular to the surface shown, and the looper 3 is located to the right of the needle 1 and in front of the netting 4.

After reaching the mesh of the netting 4, the needle 1 moves below a region 131 with a predetermined number of meshes to be picked up, in the direction of the maximum lowering advance position.

Simultaneously, the eccentric crank mechanism 31 on the main drive shaft 12 rotates, causing the cam rod 32 of FIG. 1 to pivot the arm 35 of the rocker 33 upward.

The arm 36 of the same rocker therefore moves downwards and, by means of the pivoting arm 37 connected thereto, pulls the holder 27 with the looper 2 downwards along the sliding guide device 30.

At the same time, the cam 44 rotating on the main drive shaft 12
Away from the cam roller 45, the roller 45 moves the holder 41 with the second looper 3 from left to right through the shaft 46 on which the movable support member 42 rotates together with the rod 40. and the nose 39 of the looper 3 connects the needle 1 and the needle thread 5 of FIG. 3a.
The needle thread 5 is prevented from slipping off the surface of the needle 1 via the protrusion 128 of the protrusion 123 of the gripping device 15 shown in FIG.

The cam 23 rotating on the main drive shaft 12 is the needle carrier 1.
At the moment when the needle pusher 20 with 9 and needle 1 starts to move backwards, the looper 3 continues to move from right to left and at the same time
The ends of the netting 4 begin to round and move upwards and backwards under the action of the crank arm 50 of FIG. rotate the arm 55 of the rocker 52 forward.
rotates about its axis and carries its arms 55 upwards and backwards the sleeve-like pipe 58 of the support member 42 which is movable together with the rod 40 carrying the holder 41 with the second looper 3 .

The thread 7 of the looper shown in FIG. 3b slides down the slope part of the canopy part 125 shown in FIG.
is pulled through the loop of thread 5 in Figure 3b created when it crosses over.

When the first nose 39 of the looper 3 moves backward, it passes under the looper 2 at its highest position.

At this moment, the needle 1 is on its way to its most extended position and has already left the netting 4.

Since the needle 1 moves backward and the looper 3 moves further upward and backward, a force is applied to the entangled netting 4, and the netting tries to move in the direction of the force.

The vertical support wall 124 and the canopy part 1 of the gripping device 15 in FIG.
25 prevents its movement.

When the crank mechanism 112 shown in FIG. 1 rotates with respect to the main drive shaft 12, the crank lever 1
Move 11.

The slide block of the clutch 110 is immobilized and its movement is transmitted to the outer ring of the slide block and a ring (not shown) connected to the drive disk 107 via a pair of cones.

The drive disk 107 rotates by an angle corresponding to the stretch length and moves the netting 4 pressed against its surface by the roller 108 by that value.

Since the main drive shaft 12 continues to rotate, the crank mechanism 112
The direction of movement of the crank levers 111 changes, and the crank levers 111 move in opposite directions.

The slide block of overrun clutch 110 slides against the outer ring and drive disk 107 remains stationary.

The netting 4 thus moves with a period equal to the working cycle of the machine.

Looper 3, which continues to move backwards on the left, is the first looper 2
Pick up the thread 6 as shown in Figure 3C.

At this time the needle 1 is in its most retracted position and its nose 25 reaches the triangle formed by the nose of the second looper 3, which loops the 30th needle thread 5 and Notch 1 of protrusion 128 of protrusion 123
29 and the thread 7 of the second looper 3 held in the thread 7 is moved downward.

After cam 44 passes the maximum radius point, cam roller 45 of FIG. 1 begins to descend.

Movable support member 4 with rod 40 and looper 3
2 rotation direction can be changed.

As a result, the nose 39 of the looper 3 moves to the right, displacing the loop of the needle thread 5 and the loop of the thread 6 of the looper 2, as shown in FIG. 3d.

The loop of thread 6 in the lower position holds the loop of thread 7 in the draw-off position.

Needle 1 moves further forward. Support member 4 that can be simultaneously moved by continuing to rotate from left to right with respect to the axis of rod 40 in FIG.
The movement of the sleeve-like pipes 58 of 3 into their respective positions causes the looper 3 to be moved upwardly and forwardly; the direction of movement is the direction in which it moves in the rocker 52 when it is rotated by the crank 50.

In Figure 3e, if the loop of thread 5 of needle 1 and looper 2 falls from looper 3, it is tightened around one branch of the loop of thread 7 held by looper 2, while the other Another branch crossing the branch is carried in front of the branch fastened by the loop 3 and over the edge of the netting 4 in FIG.

After inserting the yarn 5 between the loop of the yarn 7 drawn off by the looper 2 in FIG. 3e and the yarn 6 of the looper 2, the needle 1 enters the mesh of the net product 4.

The final tightening of the stitches is carried out during the stapling movement of the netting 4, when the needle 1 and the loopers 2 and 3 are in the position shown in FIG. 3b.

In the seam obtained in the above-described manner shown in FIG. 2, the loops of threads 5 and 6 are combined by an overstitch loop of thread 7.

When large mesh products are to be seamed, the gripping device 15 of FIGS. 1 and 9 should be replaced by the gripping device 14 shown in FIG. 69.

The width of the slit 73 on the outlet side of the nose 76 of the gutter member 72 is set by two leaf springs 87, 88 in accordance with the thickness of the thread from which the net product is made.

The edge of the net product 4 to be spliced, which is a part of a "longline" (trawl) made of thread, cord, rope, etc., is spliced into the slit 73 of the gearing plate 74. The number of meshes picked up and the rod cycle are inserted accordingly.

The edges of the mesh are held in the slits 73 by the rows of knots in the mesh.

The remaining product hangs from the outside of the gutter member 72.

From the gearing plate, the edges of the product are fed along the diagonal plate member 75 towards the end of the nose 76 and pulled together in that direction.

The hanging part of the product is affected by the grain size of the product, and the mesh of the mesh product is spliced under the action of the tensile force acting along the inclined slit 73 in the area of the diagonal plate member 75. is opened to allow free entry of the needle 1 into the mesh hole in the area 131 during loop formation.

Additionally, the only feature of the machine operating on the pedestal described above is that the initial "idle" chain stitch is created around the guide pin 84 without feeding the product.

When the needle 1 pulled out from under the area 131 moves backwards while the drive disk 107 of the feeding mechanism 106 rotates,
When the looper 2 is in its upper position, a mesh-forming portion is visible on the exit side of the slit 73 of the gutter member 72 and is pressed onto the base of the spring-actuated portion of the nose 76. Once separated, move forward by the stitch length.

When there is no tension, the mesh-forming parts (threads and knots) are gripped at the exit side of the trough member 72 and the needle 1 passes into the corresponding mesh hole.

The above-described operation of the machine corresponds to the length of the mesh having a predetermined number of meshes, and at one time the pick-up position 74 of the gutter member 72 is reached.
is sent to the slit 73.

If the products to be spliced are spliced in a preassembled manner, the gripping device 15 must be of the embodiment shown in FIG.

By the horizontal plate 105 fixed to the stationary support member 69,
The width of the passage is then adjusted by turning the wing nut 103 on the screw 102, leaving a small gap so that the netting 4 can pass together into said passage.

The assembled parts with joined products are placed on the horizontal part 94.95.

An "idle" chain stitch seam is created around the extension guide 106.

Tightening chainstitch seams are formed around braided sections and do not extend into adjacent mesh.

The operation of the machine is thus continuous.

The above-mentioned embodiment of the above-mentioned machine allows the cross section 1rIrrIt~
A wide variety of trawl nets made in various sizes can be spliced with 2,5 rrrm nylon thread, and 3 Tr.
Nylon ropes with cross sections of rrn to 12 mm can be tied together several times, and the braided sections of the rope can then be spliced, or the ropes can be spliced together to make nets of different sizes.

[Brief explanation of drawings]

Fig. 1 is a perspective view illustrating the configuration of a machine for seaming net products according to the present invention; Fig. 2 is a partial view of a three-thread chain stitch seam made by the machine to join the net products;
Figures a-e are plan views showing the positions of the needle and looper at various moments of loop formation, Figure 4 is a perspective view of Figure 1 as seen in the direction of arrow B, and Figure 5a is a machine according to the invention. Perspective view of the device for guiding the net product of FIG.
Figures c and 5d are front, plan and side views showing details of the device for guiding the net product shown in figure 5a. FIG. 6 is a perspective view of another embodiment of the device for guiding the product of the present invention, FIG. 7 is a sectional view taken along the line ■-■ of FIG. 6, and FIG. A perspective view of an alternative embodiment, FIG. 9, each shows a perspective view of a gripping device for holding spliced net products according to the invention. Note that 1 is the needle, 2 is the first looper, 3 is the second looper,
4 is a net product, 5, 6.7 is a thread, 8 is a bed, 9 is a mechanism,
10 is a first looper moving mechanism, 12 is a second looper moving machine, 13 is a feeding mechanism, 14 is a guide device, 15 is a gripping device, 16 is a stitch length or step-pie-step feeding device, and 17 is a thread tension control device. , 18 is a thread guide, 19 is a needle carrier, 20 is a needle pusher, 21゜69 is a stationary support member, 22 is a jaw member, 23゜44 is a cam, 24 is a shank, 25 is a straight nose portion, 26 is a horizontal , 27 is a holder, 28 is a mounting bush,
29 is a sliding rod, 30 is a vertical slide guide device, 31 is a crank mechanism, 32 is a cam rod, 33 is a rocker, 3
5, 36. 54.55 is the arm, 37 is the rotating arm, 38, 40°11
8 is the rod, 39.76 is the nose, 41 is the holder, 4
2. 43 is a movable support member, 45 is a cam roller, 48 is a lever, 50 is a crank arm, 51 is a connecting link, 5
2 is a rocker, 56.57 is a jaw, 58 is a sleeve-shaped pipe, 60 is a front plate member, 61 is a rear plate member, 62 is an upper cover, 63 is a rounded part, 64.128 is a protrusion, 65
66 is a rounded projection, 70, 81.82 is a horizontal support member, 72 is a gutter member, 73 is a longitudinal slit, 74 is a gear plate, 75 is a diagonal plate member, 77° 78 is a bridge, 79, 80 is a vertical rib, 85 is a fixing member, 9
1 is an eye, 92 is a front slide member, 93 is a rear slide member, 94 and 95 are horizontal parts, 96.97 are vertical parts,
103 is a wing nut, 105 is a horizontal plate, 106 is an extension guide, 107 is a drive disk, 108 is a pressure roller, 10
9 is a casing, 110 is an overrun clutch, 1
11 is a crank lever, 112 is a crank mechanism, 113
1 is a lever device, 114 is a support member, 115 is a protrusion, 1
16 is a suspension, 117 is a support head, 119 is a rocker arm, 122 is an eccentric, 123 is a protrusion, 1
25 is a canopy part, 126 is a guard member, 127 is a foot, 1
29 is a cut, 130 is a slope portion, and 131 is a mesh area.

Claims (1)

[Scope of Claims] 1. A machine for piecing net products, comprising a needle, a plurality of loopers, and a feeding mechanism for feeding the net products,
The needle and the plurality of loopers are kinematically coupled to the main shaft of the drive source through respective mechanisms for moving the needle and the plurality of loopers mounted on the bed of the machine, and the feeding mechanism is a device for guiding the end pieces of the netting toward the needle; a gripping device for holding the netting to be spliced during loop formation; and a drive disk and a pressure roller, each having a horizontal axis of rotation. a step-by-step feeding device for the net product, the guide device, the gripping device and the step-by-step feeding device being kinematically connected to ,
In a machine for piecing net products arranged on the bed in the order of a step-by-step feeding device, the device 14 for guiding the ends of the net products is provided with a slide member for feeding the net products in a vertical position; The sliding member rests on the bed 8 essentially parallel to the vertical front wall 59 of the bed 8 and is in front of the vertical front wall 59 for suspending an end piece of netting. a gripping device 15 positioned substantially above the horizontally arranged needle 1 and gripping the hanging end piece of the net product;
has a horizontal projection 123, the support surface of which is positioned substantially tangentially to the working surface of the drive disk 107 of the graduated feed device 16, and which is aligned with the front contour of the horizontal projection 123 or the edge of the netting. In order to gradually change the direction of the area near the edge to the horizontal pressurizing position, it is formed to be wide with a smooth curved surface in the direction of movement of the net product, and the rear side of the horizontal protrusion 123 is connected to the vertical support wall 124. A machine for piecing net products, characterized in that the vertical support wall 124 is provided with a canopy 125 parallel to the horizontal protrusion 123. 2. The sliding member in the device 14 for guiding the end piece of the net product is made in the form of a front plate member 60 and a rear plate member 61,
The drawing board members are connected by a top cover 62 so as to form a passage therebetween perpendicular to the end pieces of the netting to be spliced, and the front board member 60 is provided to hold the knitted product during loop formation. There is a protrusion 64 which is bent in the direction of movement of the netting and is located below the needle 1 when the needle is in its extended position, and said rear plate member 61 is located on the bed on its entrance side. There is a diagonal portion 65 bent in the direction 8, which is formed to facilitate the insertion of the netting into the passageway between the front plate member 60 and the rear plate member 61 and to facilitate the pulling of the netting. , inside said passage a movable bushing 67 is provided fixed to the upper cover 62, said bushing serves to stop the edges of the mesh products being fed and to control the number of meshes to be picked up for seaming. A machine according to claim 1, characterized in that it is operative to set a predetermined number. 3. The sliding member in the device 14 for guiding the ends of the net product is a gutter member 72 having a longitudinally opened slit 73 on its side, and the width of the slit is larger than the thickness of the thread from which the net product is made. Said gutter member has a predetermined number of meshes, each of which is defined as thick but narrower than the size of a knot in the meshwork, thereby looping together with each other in the seam; 2. Machine according to claim 1, characterized in that the hanging parts of the netting are retained by knots. 4. The gutter member 72 has a mesh pick-up plate 74 having a horizontal base, a diagonal plate member 75 having a base inclined toward the inlet side, and a nose portion 76 having a horizontal base, and the two plate members and the The nose portion is arranged continuously from the inlet side to the outlet side, and the gutter member 72 is formed so that the width becomes narrower in the direction from the inlet side to the outlet side, and the width becomes narrower in the same direction. Mesh pick-up board 74
and a longitudinal opening slit arranged in the lateral wall of the gutter member 72 in the region of the diagonal plate member 75, and at the base of the region of the nose portion 76, the horizontal position of the slit in the lateral wall is such that the horizontal position of the slit is located in the base. A plate 87,88 arranged on the outside of the lateral wall of the nose part 76 so as to gradually change to a vertical position and narrow the width of the slit 73 on the outlet side of the gutter member 72.
5. An assembly in which the slide member in the device 14 for guiding the end piece of the net product has a cross-sectional shape of an L-shape, and the net product is joined together. 2 so that the horizontal parts 94 and 95 face each other so that the parts rest thereon and an open vertical passage is formed between the two horizontal parts for the passage of adjacent meshwork. Machine according to claim 1, characterized in that the two horizontal parts are connected to each other. 6. Any one of claims 1 to 5, characterized in that the gripping device 15 for holding the net product has at least one guide member for guiding the plurality of threads during loop formation. The gripping device 15 for holding the net product is attached to the vertical support wall 124.
The inner part 12 is formed as part of a horizontal projection 123 at the end edge of the needle 1 and is made in the shape of a projection and is arranged towards the needle 1.
8, so that the needle 1 contacts the guiding end of the guide 128 as it moves along the lateral surface of the guide 128, thereby causing the needle thread to slip from the upper surface of the needle 1 during loop formation. 7. A machine according to claim 6, characterized in that the machine prevents 8. The gripping device 15 for holding the net product is provided with a guide part facing the needle 1 and made in the form of a slope part 130, which slope part is arranged on the upper surface of the leg part 125 on the side facing the needle 1. 8. A machine as claimed in claim 7, characterized in that the yarn can easily slide over the jacket surface of the hem 125 when the yarn passes over the edge of the net product during loop formation.