CN111926464A

CN111926464A - Felting needle linkage device for non-woven fabric

Info

Publication number: CN111926464A
Application number: CN202010806309.5A
Authority: CN
Inventors: 王涛
Original assignee: Individual
Current assignee: Xuzhou Li Da Sewing Devices Manufacturing Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2020-11-13
Anticipated expiration: 2040-08-12
Also published as: CN111926464B

Abstract

The invention discloses a felting needle linkage device for non-woven fabric, which comprises a limiting box, wherein a sealing plate is fixedly and hermetically mounted at the top of the limiting box, the inside of the limiting box is divided into a main flow cavity and two auxiliary flow cavities by two vertical plates which are arranged in parallel, the two auxiliary flow cavities are symmetrically distributed at two sides of the main flow cavity, the upper ends of the two vertical plates are respectively provided with a flow opening in a penetrating way, a main sliding plate is arranged in the main flow cavity in a sealing and sliding way, an auxiliary sliding plate is arranged in each auxiliary flow cavity in a sealing and sliding way, felting needles are fixedly mounted on the lower surfaces of the main sliding plate and the two auxiliary sliding plates, and the lower end of each felting needle penetrates through the bottom wall of the limiting box. The invention has the advantages that the fiber is not easy to stretch when the felting needle penetrates out of the fabric in the needling process, the kinetic energy loss is less, the noise generated in the needling process can be effectively reduced, the needling times in unit time can be improved, and the processed fabric structure is more compact.

Description

Felting needle linkage device for non-woven fabric

Technical Field

The invention relates to the technical field of textile processing equipment, in particular to a felting needle linkage device for non-woven fabric.

Background

The nonwoven fabric is processed by various methods, among which the most common method is needle punching, in which a web made of short fibers is repeatedly and rapidly penetrated by a needle with edges or barbs, so that the short fibers on the surface of the web penetrate into the web, and the fiber bundles of each layer are intertwined, so that the web is changed from a fluffy state to a compact state, thereby forming a needle punched nonwoven material.

Traditional needle punching utilizes the arm to drive multirow felting needle and punctures, receives the mechanical strength restriction, and the speed upper limit of acupuncture is lower, and the kinetic energy loss is big, has greatly limited non-woven fabrics's machining efficiency, and the fabric keeps the uniform motion state at the puncture in-process, if the speed that the felting needle worn out the fabric is slower, then can make local fibre appear the displacement, especially has the felting needle of barb, move towards the fibre and influence bigger, can lead to the backer to appear warping even, cause the non-woven fabrics thickness after the processing to differ.

To this end, we propose a needle linkage for nonwovens.

Disclosure of Invention

The invention aims to solve the defects that the traditional needle-punching method in the prior art has large kinetic energy loss and low needle-punching efficiency and can not improve the speed of the needle penetrating out of the fabric, and provides a needle linkage device for non-woven fabric.

In order to achieve the purpose, the invention adopts the following technical scheme:

a felting needle linkage device for non-woven fabric comprises a limiting box, wherein a sealing plate is fixedly and hermetically mounted at the top of the limiting box, the inside of the limiting box is divided into a main flow cavity and two auxiliary flow cavities by two vertical plates which are arranged in parallel, the two auxiliary flow cavities are symmetrically distributed on two sides of the main flow cavity, the upper ends of the two vertical plates are respectively penetrated and provided with a flow port, a main sliding plate is arranged in the main flow cavity in a sealing and sliding manner, an auxiliary sliding plate is arranged in each auxiliary flow cavity in a sealing and sliding manner, felting needles are fixedly mounted on the lower surfaces of the main sliding plate and the two auxiliary sliding plates, and the lower end of each felting needle penetrates through the bottom wall of the limiting box and extends out;

the upper surface of the sealing plate is fixedly provided with a solenoid which is coaxial with the main sliding plate, and the main sliding plate is made of a permanent magnet.

Preferably, the limiting box is internally filled with transmission fluid, and the transmission fluid is positioned above the main sliding plate and the two auxiliary sliding plates.

Preferably, the lower surface symmetry of spacing box is provided with two fixed cylinders, every the electro-magnet is all installed to the interior roof of fixed cylinder, every all slide in the fixed cylinder and be provided with the magnetic sheet, and be located and be connected with the spring between the magnetic sheet in same fixed cylinder and the electro-magnet, every the lower surface of magnetic sheet all is connected with the dead lever, two the lower extreme of dead lever all runs through the diapire that corresponds fixed cylinder and is connected with the clamp plate jointly, three and felting needle specification assorted thorn hole have been seted up to the symmetry on the clamp plate.

Preferably, a pressure sensor is arranged between the solenoid and the sealing plate, and a magnetic shielding layer is further arranged between each fixed cylinder and the limiting box.

The invention has the beneficial effects that:

1. the pricking needles can continuously and periodically prick the fabric by arranging the structures such as the sealing plate, the solenoid, the main sliding plate, the auxiliary sliding plate, the vertical plate and the like, the pricking process mainly depends on magnetic force drive, the mechanical strength is hardly limited, the kinetic energy loss is small, the noise generated in the pricking process can be effectively reduced, the pricking times in unit time can be improved, the processed fabric structure is more compact, and the product quality is improved.

2. The movement of the auxiliary sliding plate is realized by utilizing the pressure intensity change generated by the up-and-down movement of the main sliding plate, the number of driving parts can be reduced, and the structure of the device is more simplified on the premise of ensuring the needling efficiency.

3. The movement direction of the felting needles connected with the main sliding plate is opposite to that of the felting needles connected with the auxiliary sliding plate, so that the felting needles can be separated from the fibers more easily when being reset, and the problems of large fiber breakage rate, unsmooth perforation, non-woven fabric thickness difference and the like caused by the fact that the fibers wound on the felting needles are stretched too much along with the movement of the felting needles are avoided.

4. The top of solenoid is equipped with the magnetic screen lid, guarantees that magnetic field only acts on main sliding plate department, also is equipped with the magnetic screen layer between fixed cylinder and the spacing box, prevents that the magnetic field of solenoid and main sliding plate department from producing the interference to the magnetic field in the fixed cylinder.

5. Through setting up pressure sensor, a fixed cylinder, the electro-magnet, a spring, the dead lever, clamp plate isotructure, the pressure variation of accessible data analysis technique monitoring pressure sensor department, thereby automatically judge whether the resistance effect that the felting needle received is in normal range, realize the intellectual detection system and the intelligent investigation of trouble, if the deviation exceeds the default, then drive clamp plate squeeze fabric, help felting needle and fabric separation, the force direction of felting needle has also been restricted to the thorn hole on the clamp plate simultaneously, avoid the felting needle straightness variation under strong resistance effect, the probability of felting needle rupture has also been reduced simultaneously.

6. Because the electromagnet is internally provided with the iron core, when the electromagnet is powered off, the iron core can enable the magnetic plate to reset more quickly, and meanwhile, the mutual attraction between the iron core and the magnetic plate in the electromagnet can also reduce the stretching amount of the spring, reduce the fatigue of the spring and further prolong the service life of the device.

Drawings

FIG. 1 is a schematic view of a needle linkage of embodiment 1 for a nonwoven fabric according to the present invention;

FIG. 2 is a schematic structural view of an embodiment 2 of a needle linkage for a nonwoven fabric according to the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure: 1 sealing plate, 2 limiting boxes, 3 vertical plates, 4 circulation ports, 5 main sliding plates, 6 auxiliary sliding plates, 7 puncture needles, 8 solenoids, 9 magnetic shielding covers, 10 pressing plates, 11 puncture holes, 12 fixing cylinders, 13 fixing rods, 14 pressure sensors, 15 magnetic shielding layers, 16 magnetic plates, 17 electromagnets and 18 springs.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1

Referring to fig. 1, a felting needle linkage device for non-woven fabric comprises a limiting box 2, a sealing plate 1 is fixedly and hermetically mounted at the top of the limiting box 2, the inside of the limiting box 2 is divided into a main flow cavity and two auxiliary flow cavities by two vertical plates 3 which are arranged in parallel, the two auxiliary flow cavities are symmetrically distributed on two sides of the main flow cavity, the upper ends of the two vertical plates 3 are respectively provided with a flow opening 4 in a penetrating way, the two flow openings 4 have the same specification and are corresponding in position, a main sliding plate 5 is arranged in the main flow cavity in a sealing and sliding way, an auxiliary sliding plate 6 is arranged in each auxiliary flow cavity in a sealing and sliding way, the lower surfaces of the main sliding plate 5 and the two auxiliary sliding plates 6 are respectively and fixedly provided with a felting needle 7, and the lower end of each felt;

the upper surface of the sealing plate 1 is fixedly provided with a solenoid 8 which is coaxial with the main sliding plate 5, the main sliding plate 5 is made of a permanent magnet, an iron core is not arranged in the solenoid 8, when the solenoid 8 is electrified, a magnetic field in the vertical direction can be generated, and a magnetic shielding cover 9 is arranged above the solenoid 8, so that the magnetic field only acts on the main sliding plate 5.

In this embodiment, the transmission fluid is contained in the limiting box 2, the transmission fluid is located above the main sliding plate 5 and the two auxiliary sliding plates 6, the transmission fluid can flow in the limiting box 2 through the circulation port 4, and the transmission fluid can be selected from solutions with stable properties such as hydraulic oil.

When the device is used, the sealing plate 1 is fixed on the bracket to keep the device stable, current with periodically changed direction and unchanged magnitude is introduced into the solenoid 8 to enable the solenoid 8 to generate a magnetic field with periodically changed direction, because the main sliding plate 5 is made of a permanent magnet, the main sliding plate 5 can be attracted or repelled by the magnetic field so as to move up and down in the vertical direction, and the auxiliary sliding plate 6 is made of a non-ferromagnetic material;

when the magnetic field generated by the solenoid 8 is repelled with the magnetic field of the main sliding plate 5, so that the main sliding plate 5 moves downwards, the volume of a space formed by the main sliding plate 5, the vertical plate 3 and the sealing plate 1 is increased, and under the action of pressure, transmission liquid in the two secondary flow cavities can automatically flow into the main flow cavity, so that the two secondary sliding plates 6 synchronously slide upwards, in the process, the felting needles 7 connected with the main sliding plate 5 are used for needling the non-woven fabric, and the felting needles 7 connected with the secondary sliding plates 6 are separated from the non-woven fabric to form two motion tracks with opposite directions, so that the felting needles 7 on two sides are more easily separated from fibers when being reset, and the problems of large fiber breakage rate, unsmooth perforation, non-woven fabric thickness difference and the like caused by the fact that the fibers wound on the felting needles 7;

similarly, when the magnetic field generated by the solenoid 8 attracts the magnetic field of the main sliding plate 5, and the main sliding plate 5 moves upwards, the transmission fluid returns to the auxiliary transmission cavity through the two flow openings 4, so that the felting needles connected with the auxiliary sliding plate can be used for needling the non-woven fabric, and the separation of the felting needles connected with the main sliding plate 5 from the non-woven fabric is facilitated;

it should be noted that in the actual production process, a plurality of devices can be used in parallel to match the processing of fabrics with different widths.

Example 2

Referring to fig. 2 to 3, the present embodiment is different from embodiment 1 in that: the lower surface symmetry of spacing box 2 is provided with two fixed section of thick bamboo 12, electro-magnet 17 is all installed to the interior roof of every fixed section of thick bamboo 12, it is provided with magnetic sheet 16 all to slide in every fixed section of thick bamboo 12, and be located and be connected with spring 18 between magnetic sheet 16 and the electro-magnet 17 in same fixed section of thick bamboo 12, the lower surface of every magnetic sheet 16 all is connected with dead lever 13, the lower extreme of two dead levers 13 all runs through the diapire that corresponds fixed section of thick bamboo 12 and is connected with clamp plate 10 jointly, three and 7 specification assorted thorn holes 11 of felting needle have been seted up to the symmetry on.

In this embodiment, a pressure sensor 14 is disposed between the solenoid 8 and the sealing plate 1, and a magnetic shielding layer 15 is further disposed between each fixed cylinder 12 and the limiting box 2 to prevent the magnetic field at the solenoid 8 and the main sliding plate 5 from interfering with the magnetic field in the fixed cylinder 12.

When the needle punching machine is used in the embodiment, the pressure sensor 14 is connected with an external computer through a lead, the pressure value at the pressure sensor 14 can be converted into an electric signal to be transmitted into the computer, the computer can convert the electric signal into a computer language to be processed through a data analysis technology, the direction change of the current introduced into the solenoid 8 has a certain period in the normal processing process, the pressure received by the pressure sensor 14 is fit by the computer and then is expressed as an approximately coincident curve in different periods, and when the deviation value at a certain moment is overlarge, the change of the distance between the solenoid 8 and the main sliding plate 5 is expressed to be inconsistent with a preset value, namely, the needle 7 is subjected to a certain resistance action;

when the felting needle 7 is excessively wound with fibers or is pulled with a base fabric pore, the felting needle 7 is directly pulled upwards to bear larger resistance, the pressure deviation at the pressure sensor 14 is larger, when the deviation exceeds a preset value, current is immediately introduced into the electromagnet 17, so that the electromagnet 17 generates a magnetic field with the direction opposite to that of the magnetic field of the magnetic plate 16, under the action of repulsion force, the magnetic plate 16 drives the fixing rod 13 to move downwards, so that the pressing plate 10 extrudes the fabric to help the felting needle 7 to be separated from the fabric, the pressing plate 10 enables the fabric to move downwards, the direction of the force borne by the felting needle 7 can be limited by the pricking hole 11, the flatness deterioration of the felting needle 7 under the action of oblique downward force is avoided, and the breakage probability of the;

when the needle 7 is separated from the fabric, the magnetic field generated by the solenoid 8, the magnetic field of the main sliding plate 5, the gravity of the needle 7 and the like are balanced again, the pressure deviation at the pressure sensor 14 can also return to the normal range, the electromagnet 17 is powered off, and the magnetic plate 16 drives the pressing plate 10 to reset through the fixed rod 13 under the action of the spring 18, so that the needle 7 is prevented from bringing the fiber into the puncture hole 11;

it should be noted that, because the electromagnet 17 is provided with an iron core, when the electromagnet 17 is powered off, the iron core can enable the magnetic plate 16 to reset more quickly, and meanwhile, the stretching amount of the spring 18 can be reduced, the fatigue of the spring 18 is reduced, and the service life of the spring 18 is prolonged.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A felting needle linkage device for non-woven fabric comprises a limit box (2) and is characterized in that, the top of the limiting box (2) is fixedly and hermetically provided with a sealing plate (1), the inside of the limiting box (2) is divided into a main flow cavity and two auxiliary flow cavities by two vertical plates (3) which are arranged in parallel, two auxiliary flow cavities are symmetrically distributed on two sides of the main flow cavity, the upper ends of the two vertical plates (3) are both provided with a flow opening (4) in a penetrating way, a main sliding plate (5) is arranged in the main flow cavity in a sealing sliding way, an auxiliary sliding plate (6) is arranged in each auxiliary flow cavity in a sealing sliding way, pricking pins (7) are fixedly arranged on the lower surfaces of the main sliding plate (5) and the two auxiliary sliding plates (6), and the lower end of each pricking pin (7) penetrates through the bottom wall of the limiting box (2) and extends out of the limiting box (2);

the upper surface of the sealing plate (1) is fixedly provided with a solenoid (8) coaxial with the main sliding plate (5), and the main sliding plate (5) is made of a permanent magnet.

2. The needle linkage device for the non-woven fabric is characterized in that the limiting box (2) is filled with transmission fluid, and the transmission fluid is positioned above the main sliding plate (5) and the two auxiliary sliding plates (6).

3. The felting needle linkage device for the non-woven fabric as claimed in claim 1, wherein two fixed cylinders (12) are symmetrically arranged on the lower surface of the limit box (2), an electromagnet (17) is mounted on the inner top wall of each fixed cylinder (12), a magnetic plate (16) is slidably arranged in each fixed cylinder (12), a fixed rod (13) is connected to the lower surface of each magnetic plate (16), the lower ends of the two fixed rods (13) penetrate through the bottom wall of the corresponding fixed cylinder (12) and are commonly connected with a press plate (10), and three felting holes (11) matched with the specifications of the felting needles (7) are symmetrically formed in the press plate (10).

4. A needle unit linkage device for non-woven fabric according to claim 3, characterized in that a pressure sensor (14) is arranged between the solenoid (8) and the sealing plate (1), and a magnetic shielding layer (15) is arranged between each fixing cylinder (12) and the limiting box (2).