JP2012012756A - Needle punching apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a needle punching apparatus that allows stable needle punching.SOLUTION: The needle punching apparatus 100 comprises: a needle punching machine 2; a carrying-in conveyor 1 for conveying a fibrous mat; a pair of feed rollers 22a and 22b for feeding the fibrous mat conveyed by a carrying-in conveyor 3 into the needle punching machine 2; a pair of discharge rollers 23a and 23b for discharging the fibrous mat from the needle punching machine 2; and a carrying-out conveyor 3 for taking out the fibrous mat discharged from the pair of discharge rollers 23a and 23b. Pressing means 10b for imparting a resistance to hold down the end portion of the fibrous mat carried by the carrying-in conveyor 1 is provided around the entrance of the pair of feed rollers 22a and 22b.

Description

  The present invention relates to a needle punch processing apparatus that performs needle punch processing on a fibrous mat.

  Glass wool (short glass fiber) has high heat insulation, excellent sound absorption, light and easy to install. Sound absorption heat insulation insulators used around automobile engines, residential insulation, buildings, etc. It is used as a heat insulating material for piping in construction.

  As a main manufacturing process of glass wool mat, as shown in the process schematic diagram of FIG. 3, a process of preparing glass fiber raw materials in order (raw material preparation process), and a process of fiberizing a molten raw material with a fiberizing device (Fiberification process), the process of applying an adhesive to the glass fiber after fiberization (adhesive application process), the uncured fiber after applying the adhesive is sequentially dropped onto a flat surface to deposit it in layers. Manufactured through an uncured inorganic fiber aggregate process (cotton collecting process), shipped through a winding process and a transport packing process to adjust the shape and width of the glass wool mat (cutting process) The

  In the manufacturing method of the glass wool mat described above, in order to maintain the moldability of the glass wool mat, after the fiberizing process, the adhesive applying process for applying the adhesive, without using the adhesive, after the cotton collecting process, It is known to perform needle punch processing on glass wool mats.

  In Patent Document 1, a needle is inserted into a glass wool mat by reciprocating the needle at a high speed in a glass wool mat (glass wool molded body) at a high speed, whereby the short glass fibers constituting the glass wool mat are entangled with each other. A needle punching process that maintains the shape-retaining property of a glass wool mat without using a binder such as an adhesive is disclosed.

International Publication No. 2006/059752 Pamphlet

  In the needle punch processing step described in Patent Document 1, in order to reduce the thickness of the glass wool mat, the needle punch processing machine is determined based on the rotation speed of the supply roller (upstream side) provided before being introduced into the needle punch processing machine. In this case, the conveyance speed for conveying the glass wool mat while performing needle punching and the rotation speed of the discharge roller (downstream side) for conveying the glass wool mat after needle punching are set high.

  Therefore, when the end of the glass wool mat introduced into the supply roller is introduced, there is no resistance to hold down the end of the glass wool mat, so the end of the glass wool mat is rapidly sucked into the needle processing machine, and the glass wool mat becomes bulky. There has been a problem that problems occur when performing tensioning and needle punching.

  The present invention has been made in view of the above-described problems, and when performing needle punch processing, when introducing the end portion of the glass wool mat into the needle processing machine, the needle punch processing is stably performed with less trouble. It is an object of the present invention to provide a needle punch processing apparatus that can perform the above-described process.

  In order to solve the above-described problems, the present inventors provide a resistance for suppressing the end portion of the glass wool mat introduced into the supply roller, provided on the upstream side of the needle punch processing machine, in the needle punch processing apparatus. It has been found that by providing a pressing means for imparting in the vicinity of the inlet of the supply roller, needle punching can be stably performed without the end portion of the glass wool mat being rapidly sucked into the needle punching machine. The present invention has been reached.

  That is, the present invention is a needle punch processing device that imparts shape retention to the fibrous mat while conveying the fibrous mat with a conveyor device, and performs the needle punch processing on the fibrous mat. A pair of machine, an upstream conveyor of the needle punch machine, a conveyor for conveying the fibrous mat, and a fiber mat conveyed by the conveyor for introducing into the needle punch machine A pair of discharge rollers positioned on the downstream side of the supply roller, the needle punch processing machine, and the fiber mat is led out from the needle punch processing machine, and the fiber mat discharged from the pair of discharge rollers are carried out. An unloading conveyor, wherein the rotation speed of the pair of discharge rollers is relative to the rotation speed of the pair of supply rollers. This is a large needle punching device, and is provided with a pressing means for applying resistance for pressing the end of the fiber mat conveyed by the carry-in conveyor in the vicinity of the entrance of the pair of supply rollers. This is a needle punch processing device.

  In the present invention, the conveyor device refers to a belt conveyor device, a roll type conveyor device, an air table type conveyor device (a device that blows air from below, floats the object to be conveyed, and contacts the rotating body in this state to convey it. ) Etc. means the whole apparatus which conveys a fiber mat. An apparatus for pulling a fiber with a thread or string from the fiber traveling direction and conveying the fiber is also included in the conveyor device of the present invention. Among them, the belt conveyor device is particularly preferable because the movement of the fiber is smooth and the fall of the fiber during conveyance and the disorder of the shape can be prevented.

  Further, the pressing means referred to here is not particularly limited as long as it can impart contact resistance by suppressing the end portion of the glass wool mat. When the conveyor device is a belt conveyor device, it is particularly preferable that the pressing means uses a pressing roll that presses the glass wool mat against the belt from the viewpoint of efficiently imparting contact resistance to the end portion of the glass wool mat. In the case of other conveyor devices, for example, in the case of a roll type conveyor device, in the case of an air table, or in the case of a conveyor device that pulls with a thread or string from the front, a pair of pressing rolls are provided, One preferred form is to sandwich the fiber with a roll and apply a load.

  According to the configuration of the present invention, the end portion of the glass wool mat can be stably needle punched without being rapidly sucked into the needle punching machine.

It is the schematic which shows an example of the needle punch processing apparatus which concerns on embodiment of this invention. It is the schematic explaining operation | movement of the pressing means which concerns on embodiment of this invention. The manufacturing process figure of a glass wool mat is shown.

  Hereinafter, the present invention will be described in detail, but it is obvious that various modifications are possible within the scope of the technical idea without being limited to the following embodiments.

  For example, in the embodiment of the present invention, a glass wool (glass short fiber) mat is used as the fiber mat, but it can also be applied to other fiber mats such as synthetic fibers and chemical fibers such as polyester, polypropylene and rayon. It is.

  As a fiber mat, among others, glass wool mat, as disclosed in Patent Document 1, changes the introduction speed and the lead-out speed before and after the needle processing in order to reduce the thickness and improve the moldability when performing the needle processing. Since the necessity is high and the phenomenon in which the terminal portion is rapidly sucked is likely to occur, glass wools are particularly effective because they are particularly effective as an object to which the present invention is applied.

  Hereinafter, the needle punch processing apparatus 100 of the present invention will be described in detail with reference to the drawings. In addition, the raw material (glass wool mat before performing needle punch) of this invention can be preferably manufactured, for example with the glass wool manufacturing machine shown in FIG.

  In the following, the glass wool mat before needle punching is designated as “6a”, and the glass wool mat after needle punching is designated as “6b”.

  A needle punch processing apparatus 100 of the present invention is a needle punch processing apparatus that imparts shape retention to a glass wool mat while conveying the glass wool mat by a conveyor device, and a needle punch processing machine that performs needle punch processing on a glass wool mat. 2, a conveyor device for conveying the glass wool mat, and a pressing means 10 b for imparting resistance to the end of the glass wool mat near the entrance of the needle punching machine 2. The conveyor device that transports the glass wool mat includes a carry-in conveyor 1 and a carry-out conveyor 3, and the carry-in conveyor 1 and the carry-out conveyor 3 are connected to the upstream side and the downstream side of the needle punch processing machine 2, respectively.

  Further, on the upstream side of the needle punching machine 2, a pair of supply rollers 22 a and 22 b for introducing the glass wool mat conveyed by the carry-in conveyor 3 into the needle punch machine 2 is provided between the carry-in conveyor 1. It is done. Similarly, on the downstream side of the needle punch processing machine 2, a pair of discharge rollers 23a and 23b for leading out the glass wool mat subjected to the needle punch processing is provided. Moreover, the carrying-out conveyor 3 is arrange | positioned downstream of a pair of discharge rollers 23a and 23b, and the shaping conveyor arrange | positioned in two V shape for winding up the glass wool mat 6b conveyed by the carrying-out conveyor 3 in roll shape. A device 4 is provided.

  Next, in the present invention, the carry-in conveyor 1 will be described using a particularly suitable belt conveyor as an example. As shown in FIG. 2, the conveyer 1 includes an endless belt 13 and two rotating bodies 12a and 12b. By rotating the two rotating bodies 12a and 12b, the endless belt 12 is rotated to form a roll. The glass wool mat 6a is rotated and supplied onto the belt.

  A compression roller 10a for adjusting the thickness of the glass wool 6a supplied on the belt to a predetermined thickness is provided on the upstream side of the conveyor 1. Further, the end portion 7 of the glass wool mat 6a is pressed near the entrance of the needle punching machine 2 (downstream side of the carry-in conveyor 1), and a pressing force is applied to prevent the pair of supply rollers 22a and 22b from being pulled in. The roll 10b (pressing means) is provided.

  The compression roller 10a is not particularly limited as long as it can press the glass wool mat 6a, adjust the thickness, and be conveyed and supplied on the belt of the carry-in conveyor 1, for example, a metal or plastic roller can be used.

  The pressing roll 10b includes a support member 11b that supports the pressing roll 10b so that the pressing roll 10b can be freely displaced at least in the vertical direction. As shown in FIG. 2, the supporting member 11b moves the supporting member 11b in an arc shape so that the pressing roll 10b presses the glass wool mat 6a conveyed on the belt with the supporting point 11a as a fulcrum. The driving mechanism that displaces the pressing roll 10b in the vertical direction and presses the glass wool mat 6a is not particularly limited as long as it is a mechanism that can displace the pressing roll at least in the vertical direction. A mechanism (not shown) such as a cylinder may be provided and performed. Moreover, you may make it use the thing of the structure and structure substantially the same as the pressing roll 10b for the compression roller 10a.

  The position where the pressing roll 10b is provided is provided near the entrance of the pair of supply rollers 22a and 22b, is located above the belt of the carry-in conveyor 1, moves the pressing roll 10b to the belt side, and ends the glass wool mat 6a. Any position may be used as long as the resistance is applied to 7. As shown in FIG. 2, the end portion 7 of the glass wool mat 6 a is pressed through the endless belt 13 by the pressing roll 10 b and the rotating body 12 b located on the side of the needle punching machine 2 constituting the carry-in conveyor 1. Then, since resistance can be provided more efficiently, it is particularly preferable.

  The carry-out conveyor 3 is not particularly limited as long as it can transport the glass wool mat 6b subjected to the needle punching process, and the same one as the carry-in conveyor 1 can be used. Moreover, it is preferable to set suitably the conveyor speed of the carrying-in conveyor 1 and the carrying-out conveyor 3 according to the manufacture kind and the condition of an apparatus, and when using a general glass wool mat, it is 2m / min-20m / m / min, for example. It is good to set in the range. Furthermore, it is preferable to make it the range of 2m / min-7m / m / min.

  As the needle punch processing machine 2 used in the present invention, a known machine used for needle punch processing such as glass wool mat can be used. The needle punch processing machine 2 includes a punching device 20 and a plurality of needles 21. For each needle, the needle tip portion can be a triangular pyramid and a plurality of stab-like cutting protrusions are arranged downward at the apex of each side, etc., the number of protrusion-shaped portions, the interval between the needles, The thickness and the like are preferably set as appropriate according to the type of product to be manufactured.

  The needle 21 is reciprocated in the vertical direction at a high speed by a driving device (not shown), and the needle 21 is inserted and pulled out in the thickness direction of the glass wool mat to repeat the operation. By this operation, the glass wool mat having improved shape retention can be formed by the glass short fibers constituting the glass wool mat being entangled with each other in the insertion portion of the needle 21.

  The forming conveyor device 4 arranged in two V shapes for winding the glass wool mat 6b after the needle punching is set so as to synchronize the rotational speeds of the two conveyors. By arranging the two conveyors in a V-shape, the roll-shaped glass wool mat 6b can be prevented from being unwound and out of shape.

  In addition, the molding conveyor device 4 arranged in two V-shapes is formed into a V-shape by moving the other rotating body in an arc shape around the rotating body that rotates the endless belt of each conveyor. Each of the two conveyors is opened and dropped onto a holding and conveying tool (not shown) such as a lifter that holds the glass wool mat 6b wound up in a roll shape, and the roll-shaped glass wool mat 6b is held and conveyed. Also good.

  The glass wool mat applied to the present invention entangles the glass fibers by performing needle punch processing, and maintains the shape of the glass wool mat, and an adhesive for adhering the glass fibers is not necessary, Depending on the type of product to be manufactured, other adhesive aids such as an adhesive for bonding glass fibers and a wax agent for glass wool may be used.

  Next, the needle punch processing method and the method for producing the glass wool mat subjected to the needle punch in the present invention will be described with reference to FIGS.

  The glass wool mat 6a is supplied onto the belt of the carry-in conveyor 1 by rotating the glass wool mat 6a wound in advance in a roll shape. The glass wool mat 6 a supplied onto the belt is pressed against the belt side by a compression roller 10 a provided on the carry-in conveyor 1. The glass wool mat 6a is pressed against the belt side with the compression roller 10a, and the thickness of the glass wool mat is adjusted.

  Next, the glass wool mat 6 a having passed through the compression roller 10 a and having the adjusted thickness is conveyed as it is on the belt conveyor and is introduced into the needle punch processing machine 2. At this time, the pressing roll 10b provided in the vicinity of the inlet of the pair of supply rollers 22a and 22b is not necessarily in contact with the glass wool mat 6a.

  The reason is that the pressing roll 10b imparts resistance to the end portion 7 of the glass wool mat 6a. Therefore, as shown in FIG. 2, when the end portion 7 of the glass wool 6a is conveyed on the belt conveyor. Furthermore, the pressing roll 10b may be moved downward on the belt conveyor side by moving the support member 11b, and the glass wool mat may be pressed against the belt side.

  The pressing roll 10b is preferably provided in the vicinity of the entrance of the pair of supply rollers 22a and 22b so that the glass wool end portion 7 is not rapidly sucked into the needle punching machine. It is particularly preferable to press the belt on the belt by the rotating body 12b that constitutes the structure because it can efficiently provide resistance against being drawn. If the pressing roll 10b is set at the above position, the thickness adjustment and resistance application of the glass wool mat may be performed simultaneously using the pressing roll 10b without providing the compression roller 10a.

  That is, when the end portion 7 of the glass wool mat 6a approaches the entrance of the needle punching machine 2, the pressing roll 10b moves downward on the belt side, presses the glass wool mat 6a toward the belt side, and imparts contact resistance. It is possible to prevent the end portion 7 of the glass wool mat 6a from being rapidly introduced into the needle punch processing machine 2.

  The timing management for moving the pressing roll 10b downward on the belt side and pressing the glass wool mat 6a is an automatic control device (not shown) that senses that the end portion 7 of the glass wool mat 6a has reached a predetermined position on the carry-in conveyor 1. ) To control the pressing roll 10b and to reduce the predetermined weight based on the weight of the roll-shaped glass wool mat 6a before being conveyed to the carry-in conveyor 1. At that time, the pressing roll 10b is moved. Alternatively, the pressing roll 10b may be moved downward on the belt side by an artificial operation in anticipation of timing.

  In order to manufacture the glass wool mat 6b having a small thickness, the glass wool mat 6b after the needle punching process is carried out, and the rotation speed of the discharge roller (downstream side) provided at the outlet of the needle punching machine is The glass wool mat 6a before punching is carried in and set faster than the rotation speed of the supply roller (upstream side) provided before being introduced into the needle punching machine.

  The rotation speeds of the supply roller and the discharge roller are appropriately adjusted according to the type of glass wool mat to be manufactured. For example, the rotation speed of the discharge roller is 1.1 with respect to the rotation speed of the supply roller. It is good to set in the range of times to 1.5 times.

  The glass wool mat 6a conveyed on the belt of the carry-out conveyor 1 is introduced into the needle punch processing machine 2 and subjected to needle punch processing. The number of needlings is preferably set as appropriate depending on the density of the glass wool mat used, the use of the manufactured product, and the speed of the conveyor device.

  The glass wool mat 6b introduced into the needle punching machine 2 and subjected to the needle punching is conveyed on the belt of the carry-out conveyor 3, and is further formed into two V-shaped forming conveyors provided downstream of the carry-out conveyor 3. The roll core is placed on the tip of the conveyed glass wool mat 6b and wound up by the molding conveyor device 4 arranged in two V shapes, collected on the conveyor, and packed as a product. The

  Also, the two forming conveyor devices 4 arranged in a V shape are designed to be openable and closable, the glass wool mat 5 wound in a roll shape is dropped, and the carrier holder such as a lifter provided below is dropped. You may make it accommodate and convey.

  When the glass wool mat is introduced into the needle punch processing machine by the method and procedure as described above, the needle punch processing can be stably performed without the end portion of the glass wool mat being rapidly sucked into the needle punch processing machine.

  EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited to an Example.

[Example 1]
1, a glass wool mat 6a having a basis weight (surface weight) of 400 g / m ^{2 to} 600 g / m ² and a width of 1.9 m is conveyed by a belt-type carry-in conveyor 1 using the needle punch processing apparatus 100 of the present invention shown in FIG. While performing needle punching, a needle punched glass wool mat was produced. As manufacturing conditions, the carry-in conveyor 1 has a conveyance speed of 2 m / min, the carry-out conveyor 3 has a conveyance speed of 2 m / min, the pair of supply rollers have a rotation speed of 2 m / min, and the pair of discharge rollers have a rotation speed of 3 m / min. It was.

  The pushing roll 10b (pushing means) is attached to the belt-type carry-in conveyor 1, and when the pushing roll 10b is pushed to the belt side, the rotating body of the push roll 10b and the belt-type carry-in conveyor 1 on the belt. 12b is installed at a position where the end portion 7 of the glass wool mat can be pressed, and the end portion of the glass wool mat is sandwiched between the pressing roll 10b (pressing means) and the rotating body 12b "to provide resistance. Processing was performed.

  As a result, in Example 1, the end portion of the glass wool mat is fixed with resistance by the pressing roll 10b (pressing means), so that the glass wool mat can be stably stabilized without being pulled in rapidly by 50 m. As a result, needle punching could be performed.

[Comparative Example 1]
A needle punching process was carried out while conveying the glass wool mat under the same experimental conditions as in Example 1 except that no resistance was given to the end portion 7 of the glass wool mat without providing pressing means. Was rapidly drawn into the pair of supply rollers, and the glass wool mat became bulky in the needle punching machine, causing a problem that the glass wool mat was not smoothly conveyed and the production line stopped.

DESCRIPTION OF SYMBOLS 100 Needle punch processing apparatus 1 Carry-in conveyor 2 Needle punch processing machine 3 Carry-out conveyor 4 Molding conveyor apparatus 6a Glass wool mat (before needle punch processing)
6b Glass wool mat (after needle punching)
7 Glass wool mat terminal part 10a Compression roller 10b Pushing roll 11b Support member 11a Support point 12a, 12b Rotating body 20 Punching device 21 Needle 22a, 22b Supply roller 23a, 23b Discharge roller

Claims (4)

A needle punching device that imparts shape retention to the fibrous mat while conveying the fibrous mat with a conveyor device,
A needle punch processing machine for performing needle punch processing on the fibrous mat;
A carry-on conveyor that is located on the upstream side of the needle punch processing machine and conveys the fibrous mat;
A pair of supply rollers for introducing the fiber mat conveyed by the carry-in conveyor into the needle punch processing machine;
A pair of discharge rollers located downstream of the needle punch machine and leading the fibrous mat from the needle punch machine;
An unloading conveyor for unloading the fiber mat discharged from the pair of discharging rollers,
The rotational speed of the pair of discharge rollers is a needle punch processing device that is relatively larger than the rotational speed of the pair of supply rollers,
2. A needle punching apparatus according to claim 1, wherein a pressing means for applying a resistance for pressing the end portion of the fiber mat conveyed by the carry-in conveyor is provided in the vicinity of the inlet of the pair of supply rollers.   The needle punching apparatus according to claim 1, wherein the pressing means includes a pressing roll that presses the fibrous mat against the carry-in conveyor.   The carry-in conveyor has a conveyor that carries the fibrous mat on a belt and a rotating body that rotates the belt, and the pressing roll is made of the fibrous material by the pressing roll and the rotating body. The needle punch processing device according to claim 2, wherein the needle punch processing device is arranged so as to sandwich the mat.   A method of manufacturing a fibrous mat that performs needle punching on the fibrous mat while conveying the fibrous mat with a conveyor device, wherein the conveyor device is provided with pressing means, and is conveyed by the conveyor device. A method for producing a fibrous mat, comprising performing needle punching while applying resistance for pressing the end portion of the fibrous mat.

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