JPH11350327A - Multi-needle body, multi-needle head and needling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-needle head capable of improving the workability of punching processing and capable of realizing the uniformity of a punch density. SOLUTION: This multi-needle head 10 to be attached to the needle bar tip of a needling machine has multi-needle blocks 20 in each of which many punching needles N are planted on the tip surface of needle-stopping pedestal 21 in two-dimensional rows, and a multi-needle block holder 30 used for detachably and longitudinally holding a plurality of the multi-needle blocks 20 and detachably attached to the needle bar tip of the needling machine. The multi-needle block holder 30 has a holder main body 33 having two block-receiving grooves 31 and 32 each for longitudinally receiving two multi-needle blocks 20, and fastening screws B for fixing the multi-needle blocks 20 to the block-receiving grooves 31 and 32. The number of the assembled multi-needle blocks 20 can be selected to change the longitudinal length, namely a punching width. Thereby, the number of operations for laterally and simultaneously slipping a substrate and a non-woven fabric toward the punching width can be reduced to improve the workability of the punching processing and realize the uniformity of the punching density.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method in which a large number of punching needles (felting needles) are pierced at once in a non-woven material such as a fiber, a filament, a yarn and the like, which is laid on a surface of a base material such as a fabric. The present invention relates to a needling (needle punching) machine for fixing a nonwoven material layer on the surface of a base material in a state in which the nonwoven material is embedded in the base material, and in particular, a multi-needle attached to a needle bar of the needling machine. About the head.

[0002]

2. Description of the Related Art Conventionally, in needle punching,
As a multi-needle head provided with a large number of punch needles in a forest, a needle-shaped pedestal having a cylindrical shape, and a large number of needles pierced in needle-shaped holes formed at the center position of the pedestal surface and at equal intervals around the pedestal surface. 2. Description of the Related Art There is known a punch sewing machine which comprises a punching needle and is configured such that a needle retaining base is attached to a lower end portion of a needle bar of a sewing machine as a needling machine with a retaining screw. Punched needles generally have a base needle shaft for planting against the needle hole in the needle base and a number of barbs from the needle shaft to the needle tip.
And a blade portion having: Usually, the needle shaft is fixed to the needle retaining hole by bonding or the like.

[0003]

As the multi-needle head, it is desirable that the punch area be large in punch area at which a needle bar can be punched at a time by one elevating and lowering of the needle bar, and that the interval between adjacent needles is narrow. In such a case, the number of needles inevitably increases, and if one punch needle is broken, the multi-needle head itself must be replaced in its entirety, leading to an increase in running cost.
Therefore, the conventional multi-needle head is composed of seven needles, one at the center position and six around it. Since the number of needles is small, the punch area is at most about 1 cm ² .
When the area of the non-woven fabric to be punched is small, the work efficiency is not inferior, but in many cases the punch area is larger than the pedestal area, so the base material goes back and forth over the entire area many times. They must be moved around by hand. In the manual operation, the pattern of the non-woven material, etc., which is superimposed on the base material, is relatively displaced, and high and low punch density parts are generated. In addition, the needling productivity was low, and the finished quality varied.

[0004] As a countermeasure against breakage of the punch needle, the punch needle can be replaced by fixing the punch needle to the pedestal with a holding screw. However, even though the needle shaft is thicker than the blade, if the presser screw is pressed against the needle shaft, the space for the screw hole into which the presser screw is screwed in is smaller than when the needle shaft is fixed. Inevitably, the interval between the needles must be increased, and the punch density is reduced, so that much labor is required for the operation, so that the needling productivity is not improved.

In view of the above problems, the first aspect of the present invention
An object of the present invention is to provide a multi-needle head capable of performing needling with good workability and realizing uniform punch density for nonwoven fabrics of any area and scale.
A second object of the present invention is to provide a multi-needle head that allows quick replacement of a punch needle when the punch needle is broken or the like.

[0006]

Means for Solving the Problems In order to solve the first problem, the means adopted in the present invention is to form a multi-needle as an assembly block (unit) and use a plurality of the multi-needle. The point is that an assembling method capable of assembling a multi-needle head is adopted.

That is, the basic configuration of the multi-needle head according to the present invention is a multi-needle body in which a large number of punch needles are implanted in a two-dimensional array on the top surface of a needle retaining base, and a plurality of the multi-needle bodies. And a multi-needle holder removably mounted in a tandem arrangement and detachably attached to the tip of a needle bar of a needling machine.

In such a basic configuration, since the multi-needle head has a plurality of multi-needle bodies having a large number of punch needles arranged in tandem, the number of multi-needle bodies is selected and assembled to the multi-needle holder. Thus, a multi-needle head having a desired tandem length can be easily obtained.

By simply moving the base material and the non-woven material straight at a time in a direction perpendicular to the column direction, punching with a punch width corresponding to the column length can be performed. It is possible to reduce the number of times the woven material is shifted sideways together. Therefore, needling can be performed with good workability on a nonwoven fabric of any area and scale, and a uniform punch density can be realized. When the punch needle is broken, only the multi-needle body having the broken punch needle may be replaced.

As the multi-needle holder, a holder body having a plurality of multi-needle housing grooves for accommodating a plurality of the multi-needle bodies in a cascade, and a fixing for fixing each multi-needle body to the multi-needle housing groove. Means. Since the multi-needle body receiving groove is formed in a plurality of rows, two-dimensional arrangement of the multi-needle body becomes possible, and the punch density in one straight movement of the base material and the non-woven material is improved, contributing to further improvement of work efficiency. I do.

In particular, in the case where offset positioning means for positioning the multi-needle bodies in adjacent multi-needle body accommodating grooves so as to be relatively shifted in the groove direction is provided, the punch pitch in the lateral direction (groove direction) is reduced. The interval is smaller than the interval, and the number of times that the base material and the nonwoven material are shifted sideways together can be reduced, thereby greatly improving the working efficiency.

Here, when the needling machine is provided with a leading roller for leading the base material on the needle plate to the rear side of the needle plate, the feeding speed becomes constant, the working efficiency is improved, and the punch density is made uniform. Can be achieved.

In addition, in the needling machine, when the holding plate detachably attached to the tip of the holding bar is a transparent plate having a large number of needle through holes, a large punch area is always provided via the transparent holding plate. Since it can be visually recognized, the apportionment of punching can be grasped, which contributes to improvement in workability.

In order to solve the above second problem, the present invention resides in devising a multi-needle needle implantation structure. That is, in the multi-needle body according to the present invention, the needle fastening pedestal has a needle fastening vertical hole into which the base of each punch needle is inserted, and a lateral threaded hole that penetrates the needle fastening vertical holes in the same row from one side. An embedded screw that is screwed into the horizontal screw hole and inserted into the needle fixing vertical hole and abutting on the base between two adjacent punch needles on the same row, and a needle that is screwed into the horizontal screw hole. It is characterized in that it has an end screw which comes into contact with the base of the punch needle inserted into the one side closest to the side of the fastening vertical hole.

When the horizontal screw holes are provided in correspondence with the respective needle fixing vertical holes, the total space of the horizontal screw holes becomes too large, the strength of the pedestal is reduced, and the needle from the side to the inner side is provided. Since it is difficult to form a horizontal screw hole for the fastening vertical hole, it is difficult to two-dimensionally align the needles in multiple rows and columns. But,
According to the present invention, a lateral screw hole that penetrates the vertical needle holes in the same row is pierced in a skewered shape from one side, and the bases of adjacent punch needles on the inner side are fixed with embedded screws as spacers. As a result, the total space of the screw holes can be reduced, the interval between the needles can be narrowed, and the rows and columns of the needles can be two-dimensionally aligned. Needle replacement is possible, and punch density is improved.

Here, it is preferable that the arrangement of a large number of punch needles of the multi-needle body is staggered. This allows
This is because the interval between the needles is reduced, and the punch density is improved.

[0017] In such a staggered arrangement, the lateral screw holes are formed by a first lateral screw hole drilled from the first side surface to a second side surface opposite to the first side surface, and a second lateral hole formed by the second side surface. It is preferable that the first lateral screw hole and the second lateral screw hole are formed alternately next to each other, the second lateral screw hole being formed toward the first side surface. Embedded screws or end screws that fit in adjacent horizontal screw holes are also staggered, so there is little deformation of partition walls between holes due to screwing pressure, and damage to screw holes and deformation of punch needles due to deformation of needle retaining holes Can be eliminated.

It is preferable that the needle fixing vertical hole is a through hole. By inserting all the punch needles into all the needle fastening vertical holes and aligning the base ends, all the needle tips can be aligned without translation.

[0019]

Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an embodiment of a needling machine according to the present invention, FIG. 2 is a perspective view showing a multi-needle head used in the needling machine, and FIG. 3 is a plan view of the multi-needle head. 4 is an exploded perspective view of the multi-needle head, FIG. 5 is a perspective view showing a multi-needle block used for the multi-needle head, and FIG. 6 is a partially cutaway perspective view of the multi-needle block.

The needling machine 1 of this embodiment uses a sewing machine. At the tip (lower end) of the needle bar 2 of the needling machine 1, a multi-needle head 10 screwed via a mounting bracket 3 is mounted. Needling machine 1
Behind the needle plate 55 of the flat bed 4, there are provided a leading lower roller 7 and an upper roller 8 for leading the base material 6 on the needle plate 5 backward. The lower roller 7 is an idle roller. The upper roller 8 is an active roller. The upper roller 8 can be set up and down by manually raising and lowering the lever 100, so that the upper roller 8 can be pinched and released with the lower roller 8. A pedal (shown) is provided at the lower part of the body of the needling machine 1. When the pedal is depressed, the upper roller 8 is driven downward by the air cylinder 110, and when the depression is released, the upper roller 8 is raised. It is designed to return. A holding plate 9 is detachably attached to the tip (lower end) of a holding bar (not shown) extending in parallel with the needle bar 2 of the needling machine 1. The pressing plate 9 is a transparent resin plate having a large number of needle through holes. Note that conductive plastic may be used to ground static electricity due to friction with the base material.

The multi-needle head 10 has a multi-needle block 20 in which a large number of punch needles N are implanted in a two-dimensional array on the top surface of a needle retaining base 21, and a plurality of the multi-needle bodies 20 are arranged in a tandem arrangement. It has a multi-needle holder 30 that is detachably held and detachably attached to the tip of the needle bar of the needling machine 1.

The multi-needle holder 30 has two block receiving grooves 31, 3 for receiving two multi-needle blocks 20 in a tandem manner.
2 and a fastening screw B for fixing each multi-needle block 20 to the block receiving grooves 31 and 32. The fastening screws B are provided on the upright walls 34, 3 of the holder body 33.
5 are screwed into the screw holes 34a and 35a. The multi-needle holder 30 has a side plate 36 that closes one opening of the block receiving grooves 31 and 32 on the end surface of the holder body 33, and the side plate 36 has an end surface of the multi-needle block 20 in the block receiving groove 32. An offset positioning screw 37 for abutting and positioning is screwed.

The multi-needle block 20 is formed by implanting a large number of punch needles N on a top surface 21a of a substantially rectangular parallelepiped needle holding base 21 in a two-dimensional array. The needle fastening pedestal 21 has a needle fastening vertical hole h into which the base of each punch needle N is inserted, and a horizontal screw hole H which passes from one side surface to the needle fastening vertical holes h in the same row. The multi-needle block 20, lateral threaded hole H in screwed to the needle holder longitudinal hole h in plugged in vertically aligned adjacent the punch needle N, the embedding screw S ₁ in contact with the both in the middle of the base between the N , Horizontal screw hole H
And a endmost screw S ₂ in contact with the base of the plugged punch needle N screwed to the recent side of one side of the needle holder longitudinal hole h in. Therefore, to exchange the punch needle N by unscrewing S ₁ and Embedding endmost screw S _2. A large number of the needle-retaining vertical holes h are arranged in a staggered pattern, not in lattice points.
As shown in FIG. 3, the screw hole H includes a _first screw hole H1 drilled from the first side surface 21b toward the second side surface 21c facing the first side surface 21b, and a first screw hole H1 formed from the second side surface 21c to the first side surface 21b.
Made from the second threaded hole H ₂ Metropolitan drilled toward the first screw hole H ₁ and the second screw hole H ₂ is formed in the adjacent alternately. And the needle fixing vertical hole h is the screw hole H (H ₁ ,
Without terminating in H _2), as shown in FIG. 6, the bottom surface 21
The through hole reaches d.

For example, when performing a needle punching process on a nonwoven material 6a superposed on a base material 6 as shown in FIG. 1, a multi-needle head 30 as shown in FIG. Attach to the tip. First, the worker, together with the base material 6,
a is inserted into the gap between the needle plate 5 and the holding plate 9, the front end of the base material 6 is aligned with the lowering roller 7, and the upper roller 7 is pulled down to sandwich the base material 6. When the needling machine 1 is operated, the multi-needle head 10 repeats the up-and-down movement, and a large number of punch needles N continue to pierce the needle plate 5 through the needle through holes of the holding plate 9, and at the same time, the leading-up roller 8 Rotates
The substrate 6 is gradually pulled backward (in the direction of the arrow). Thus, punching is performed on the punch area on the nonwoven material 6a.

In the multi-needle head 10 of this embodiment, two multi-needle blocks 20 having a large number of punch needles N can be arranged in tandem. The punch width can be changed by selecting the number of the multi-needle blocks 20 to be assembled. for that reason,
The number of times the base material 6 and the nonwoven material 6a are laterally shifted together in the punch width direction can be reduced. For this reason, any area
Even for a nonwoven fabric of a scale, needling can be performed with good workability, and the punch density can be made uniform.

The multi-needle holder 30 has two block accommodating grooves 31 and 32, and the multi-needle block 20 is fixed to each of these by a fastening screw B. The two-dimensional arrangement of the plurality of multi-needle blocks 20 becomes possible, the punch density in one straight movement of the base material 6 and the nonwoven material 6a is improved, and the work efficiency is further improved. The multi-needle block 20
May be used as a multi-needle holder having a long block receiving groove capable of arranging three or more in a row.

In this embodiment, in particular, the offset positioning screw 37 is provided at the end of the block accommodation groove 32, and FIG.
As shown in the figure, the needle position of the multi-needle block 20 in the adjacent block accommodation groove 32 can be adjusted to the intermediate position of the needle interval L of the multi-needle block 20 in the block accommodation groove 31, and the punch pitch is reduced to half of the needle interval L. can do. The number of times the base material 6 and the nonwoven material 6a are laterally shifted together can be reduced,
Work efficiency is greatly improved. When a multi-needle holder having three or more block accommodation grooves is used, a much smaller punch pitch can be obtained.

Since the needling machine 1 of this embodiment is provided with the leading rollers 7 and 8 for leading the substrate 6 on the needle plate 5, the feed speed of the substrate 6 can be kept constant, so that the punch pitch Punch processing can be realized. Also, the holding plate 9
Since the sheet itself is transparent, even if the holding plate 9 is wide, the distribution of the punching can be reliably grasped.

By the way, in the multi-needle block 20, if the screw holes are provided corresponding to the respective needle fixing vertical holes h from the side, the total space of the screw holes becomes too large, and the strength of the pedestal 21 decreases. Further, it is difficult to form a screw hole from the side surface with respect to the needle fixing vertical hole h on the inner side.
Dimensional alignment is difficult. However, in this example, the horizontal threaded holes H that penetrate with the vertical stitch holes h on the same row are perforated in a skewered manner from one side, and the bases of the adjacent punch needles N on the inner side serve as spacers. since that is adapted to be fixed in an embedded screw S _1, can reduce the total space of the screw holes, the needle interval narrower to 2D alignment of the multi-row multi-column needle is possible. Needle replacement is possible, and punch density is improved.

In this embodiment, since a large number of punch needles N are not arranged in a lattice but in a staggered arrangement, the interval between the needles is narrow and the punch density is improved.

The openings of all the screw holes H of the multi-needle block 20 are not formed all on one side,
And the second and screw holes H ₂ which opens into the first screw hole H ₁ and side 21c which opens allocated to adjacent alternately 1b. If all are open on one side, since the partition wall between the adjacent screw holes are thin, embedded screw S ₁ or endmost screw S
_When the screw ₂ is screwed in, the partition wall is deformed by the screwing pressure from both sides, which causes damage to the screw hole and inclination of the punch needle H due to deformation of the needle retaining hole h. On the other hand, as in this example, the side surface 21
When the openings of the screw holes H ₁ and H ₂ are provided alternately on the side b and the side surface 21 c, the screws S ₁ and H ₂ that fit in the adjacent screw holes H ₁ and H ₂ are provided.
S ₂ becomes and each other in a staggered arrangement to each other, hardly occurs the deformation of the partition walls between the holes by screwing pressure, it overcomes the above disadvantages.

The needle fixing vertical hole h in this embodiment is not a blind hole but a through hole. If there are blind holes, it is difficult to make the bottoms of all the blind holes with high precision in terms of manufacturing. However, in the case of a through hole, such a manufacturing difficulty does not occur, and all the needle tips are translated without translation by inserting all the punch needles H into all the needle fixing vertical holes h and aligning the base ends. be able to.

In this embodiment, the hole diameter of the screw hole H is made larger than the hole diameter of the needle fixing vertical hole h. Rectangular pedestal 2
First, after drilling all the needle fixing vertical holes h, the screw holes H are drilled. The drill point does not escape at the portion where the holes meet, and both holes can be manufactured with high precision.

[0035]

As described above, the present invention employs an assembling method in which a multi-needle is constituted as an assembly block (unit), and a multi-needle head is assembled using a plurality of the multi-needle. Therefore, the following effects can be obtained.

Since the multi-needle head has a plurality of multi-needle bodies having a large number of punch needles arranged in tandem, the number of multi-needle bodies is selected and assembled into the multi-needle body holder to obtain a desired tandem length. Since a multi-needle head can be easily obtained and punching can be performed with a punch width corresponding to the column length, it is possible to reduce the number of times the base material and the nonwoven material are laterally displaced together in the punch width direction. Therefore, the needling process can be performed with good workability, and the punch density can be made uniform.

In the multi-needle head, as a multi-needle holder, a holder body having a plurality of multi-needle housing grooves for accommodating a plurality of multi-needle bodies in tandem, and a multi-needle body receiving groove for each multi-needle body And a fixing means for fixing the multi-needle receiving groove, a plurality of the multi-needle receiving grooves are formed, so that the two-dimensional arrangement of the multi-needle is possible, and The density is improved, which contributes to further improvement of working efficiency.

When the multi-needle head has offset positioning means for positioning the multi-needle bodies in adjacent multi-needle body accommodating grooves relatively shifted in the groove direction, the punch in the lateral direction (groove direction) The pitch is made smaller than the needle interval, and the number of times the base material and the nonwoven material are laterally shifted together can be reduced, so that the working efficiency is greatly improved.

When the needling machine is provided with a leading roller for leading the base material on the needle plate to the rear of the needle plate, the feeding speed is constant, so that the working efficiency is improved and the punch density is made uniform. Can be achieved.

In the needling machine, when the holding plate detachably attached to the tip of the holding bar is a transparent plate having a large number of needle through holes, a wide punch area can always be visually recognized through the transparent holding plate. The apportionment of punching can be grasped, contributing to improvement of work efficiency.

In the multi-needle body, the needle fastening pedestal is provided with a needle fastening vertical hole into which the base of each punch needle is inserted, and a lateral threaded hole passing from one side to the needle fastening vertical holes in the same row. An embedded screw that is screwed into the horizontal screw hole and inserted into the needle fastening vertical hole, which is in contact with the base between adjacent punch needles on the same row and abuts the two, and a needle fastening vertical hole that is screwed into the horizontal screw hole. In the case where the outermost screw which comes into contact with the base of the punch needle inserted on the most recent side of one side is provided, a horizontal threaded hole which penetrates the needle fastening vertical holes on the same row and is pierced in a skewered shape from one side. The bases of adjacent punch needles on the inner side are fixed with embedded screws as spacers, so the total space for screw holes can be reduced, the needle spacing is narrowed, and Two-dimensional alignment of columns is possible. Needle replacement is possible, and punch density is improved.

In a multi-needle body, when a large number of punch needles are arranged in a staggered manner, the interval between the needles becomes narrow, and the punch density is improved.

[0043] In the multi-needle body, the lateral threaded hole has a first lateral threaded hole drilled from the first side to the second side facing the first lateral side and a first lateral side threaded hole from the second side. A second lateral threaded hole drilled toward the first laterally threaded hole, and wherein the first laterally threaded hole and the second laterally threaded hole are formed adjacently and alternately, so that the embedding fits in the adjacent laterally threaded hole. Since the screws and the end screws are also arranged in a staggered arrangement, the deformation of the partition wall between the holes due to the screwing pressure is small, and the inclination of the punch needle due to damage to the screw holes and deformation of the needle retaining holes can be eliminated.

In a multi-needle body, when the needle fastening vertical holes are through holes, all the needle tips can be aligned without translation by inserting all the punch needles into all the needle fastening vertical holes and aligning the base ends.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a needling machine according to the present invention.

FIG. 2 is a perspective view showing a multi-needle head used in the needling machine.

FIG. 3 is a plan view of the multi-needle head.

FIG. 4 is an exploded perspective view of the same multi-needle head.

FIG. 5 is a perspective view showing a multi-needle block used in the multi-needle head.

FIG. 6 is a partially cutaway perspective view of the multi-needle block.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Needling machine 2 ... Needle bar 3 ... Mounting bracket 4 ... Flatbed 5 ... Needle plate 6 ... Base material 6a ... Non-woven material 7 ... Pre-drawing lower roller 8 ... Pre-drawing upper roller 9 ... Holding plate 10 ... Multi-needle Head 20: Multi-needle block 21: Needle retaining pedestal 21a: Top surface 21b: First side surface 21c: Second side surface 21d: Bottom surface 30: Multi-needle holder 31, 32: Block accommodating groove 33: Holder body 34, 35 ... Standing walls 34a, 35b ... Screw hole 36 ... Side plate 37 ... Offset positioning screw 100 ... Lever 110 ... Easirudah N ... Punch needle B ... Tightening screw h ... Needle vertical hole H ... Horizontal screw hole H ₁ ... First Lateral threaded hole H ₂ … Second lateral threaded hole S ₁ … Embedded screw S ₂ … End screw L… Needle spacing.

Claims (10)

[Claims] 1. A large number of punch needles are provided on a top surface of a needle holding base.
A multi-needle body which is planted in a three-dimensional array and used as an assembly block for a multi-needle head to be attached to a needle bar tip of a needling machine. 2. The staple holding base according to claim 1,
A needle fastening vertical hole into which the base of each of the punch needles is inserted, and a lateral threaded hole that is inconsistent with the needle fastening vertical holes on the same row from one side surface, and is screwed into the lateral threaded hole. An embedded screw that is in the middle of the bases of adjacent punch needles on the same row inserted into the needle fastening vertical hole and that abuts both of them, and which is screwed into the screw hole and is closest to the one side surface of the needle fastening vertical hole. A multi-needle body having an end screw that comes into contact with the base of the inserted punch needle. 3. The multi-needle according to claim 2, wherein the plurality of punch needles are arranged in a staggered manner. 4. The lateral screw hole according to claim 3, wherein the lateral screw hole has a first lateral screw hole drilled from the first side surface to the second side surface opposed thereto, and a first lateral screw hole formed from the second side surface. A second lateral threaded hole drilled towards the side of
The multi-needle body according to claim 1, wherein the first lateral screw holes and the second lateral screw holes are formed alternately and adjacently. 5. The multi-needle body according to claim 3, wherein the needle fixing vertical hole is a through hole. 6. A multi-needle head to be attached to the tip of a needle bar of a needling machine, wherein the multi-needle body defined in any one of claims 1 to 5 and a plurality of the multi-needle bodies are arranged in a column. A multi-needle head, comprising: a multi-needle holder that is detachably held in an arrangement and detachably attached to the tip of the needle bar. 7. The multi-needle holder according to claim 6, wherein the multi-needle holder comprises: a holder body having a plurality of multi-needle body receiving grooves for accommodating a plurality of the multi-needle bodies in tandem; A multi-needle head comprising fixing means for fixing the multi-needle body receiving groove. 8. The multi-needle according to claim 7, further comprising offset positioning means for positioning said multi-needle bodies in adjacent multi-needle body receiving grooves so as to be relatively shifted in the groove direction. Needle head. 9. A needling machine in which a multi-needle head is attached to the tip of a needle bar, wherein the multi-needle head is the multi-needle head defined in any one of claims 6 to 8, and is provided on a needle plate. A needling machine comprising: a leading roller for leading a base material to the rear of the needle plate. 10. The needling machine according to claim 9, wherein the holding plate detachably attached to the tip of the holding bar is a transparent plate having a large number of needle through holes.