JPH0720608B2 - Disentangling machine for wood-based molding materials - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a disentangling machine for a wood-based molding material used in manufacturing a wood-based molding, and more specifically, to a binder and the like added to wood fibers. The present invention relates to a disentangling machine for loosening a wood-based molding material.

(Prior Art) A so-called hard board is well known as a wood-based molded article, and is widely used for interior materials of automobiles, cabinets of electric products, and the like. However, this hardboard
The step of forming a molding mat once by adding a binder or the like to the wood fiber obtained from the wood chips, and then appropriately cutting this molding mat by heat compression molding is adopted. However, there has been a problem that the complexity of the process and the reduction of the yield cannot be avoided, and the moldability is inferior, which is not suitable for the production of a molded product having a deep-drawn portion.

Therefore, a method has been proposed in which the above-mentioned wood-based molding material is assembled into a predetermined shape to form a material assembly, and the material assembly is directly supplied to a molding die to be thermocompression-molded.
No. 203, JP-A No. 62-134215, and the like.

In this manufacturing method, as shown in the schematic steps in FIG. 5, first, a wood-based molding material M is supplied to a collecting device 1 and is spread from an upper spreader 2 having a disentanglement machine into a diffuser 3. Then, the raw material aggregate W having a predetermined shape is formed by depositing the porous plate 5 in the lower stacker 4 to a predetermined height. The stacker 4 and the diffuser 3 are detachable, and then the stacker 4 is separated from the diffuser 3 and conveyed to a shaving process (not shown), and the upper surface of the raw material polymer W is removed to make it constant. After the weight is set, the material assembly W is transferred to the transfer process and is transferred to the holder 6.
Is reprinted. The cage 6 has a porous plate 7 similar to the above-mentioned inside, and the inside thereof is evacuated by an exhaust means (not shown), so that the material aggregate W is sucked onto the porous plate 7 of the cage 6. Retained. After that, the retainer 6 becomes the molding device 8
Then, the suction is released and the material aggregate W is put into the mold. The molding dies forming the molding apparatus 8 are a lower mold 9 and an upper mold.
It is composed of 10 and a holding frame 11, and is preheated to a predetermined temperature. The material aggregate W put into the mold is compressed by the lowering of the upper mold 10, whereby the compact P can be obtained.

According to such a manufacturing method, since matting is unnecessary,
Most of the problems caused by the use of the above-mentioned mat can be solved, and the wood-based molded product P can be obtained at low cost and quality.

(Problems to be Solved by the Invention) By the way, according to the above-described new manufacturing method, when the material assembly W is manufactured using the collecting apparatus 1, the forming material M is loosened by the disentangling machine in the spreader 2. If it is incomplete, a block-shaped forming material is accumulated in the laminating machine 4, and the weight of the obtained material aggregate W is locally varied, which deteriorates the subsequent thermal compression moldability and reduces the molded product. It will hinder the quality.

The present invention has been made in view of the above background, and an object of the present invention is to provide a disentangling machine for a wood-based molding material that enables a sufficient loosening of the molding material.

(Means for Solving the Problems) The structure of the present invention for solving the above problems will be described with reference to FIGS. 1 to 4 which are embodiment drawings. The disentangling machine 31 is provided with at least a pair of fluffer rollers 34, 35 in a housing 33 forming a drop passage of the molding material M, and each fluffer roller has a rotating shaft 44 and a predetermined flutter roller on the rotating shaft. Formed from a large number of disc-shaped blade bodies 41 mounted with a gap, each blade body 41 has a plurality of blade portions 42 in the radial direction, and rotates adjacent to one rotation axis 44. The rotating shafts are arranged so as to have different directional phases, and the rotary shafts are arranged so that the blade body of one of the fluffer rollers 34 is loosely inserted into the gap of the blade body of the other fluffer roller 35 and the axial direction thereof. The phase and the fluffer rollers are different from each other. The rotating shaft is operatively connected to the driving means so as to rotate in the opposite direction at a certain rotation speed. (Operation) In the disentangling machine for a wood-based molding material having the above-mentioned configuration, the molding material M is a fluffer roller pair 34,35. Is mechanically unraveled by the blade portions 42 that are caught between the intricate blade portions 42 and move with a time lag while passing through the gaps between the blade main bodies 41.

(Example) Hereinafter, an example of the present invention is described based on an accompanying drawing. In the following drawings, the same parts as those shown in FIGS. 3 and 4 are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 1, reference numeral 2 denotes a spreader which constitutes the collecting device 1, and is a carrier 21 for continuously carrying the molding material M to the upper part of the diffuser 3, a drop port 22 provided in the carrier 21, and It comprises a disentangling machine 31 which is connected to the diffuser 3 and loosens the molding material M dropped from the drop port 22.

The carrier 21 is provided with a first housing 24 forming a horizontal carrier path 23, which is provided with a receiving port 25 for receiving a molding material. In the first housing 24, an upper conveyor 26 and a lower conveyor 27 are arranged in two stages, and a plurality of doffing rollers 28 are arranged between the upper and lower conveyors 26, 27. It is set up. Lower conveyor
27 is extended to the vicinity of the drop port 22, whereby the molding material M taken into the first housing 24 from the receiving port 25 is first conveyed by the upper conveyor 26 to the lower conveyor 27.
After falling to the top, and then the doffing roller 28 loosens a large lump, the lower conveyor 27 further drops
It will be transported to 22. A beater roller 29, which is rotationally driven by a motor 30, is provided just above the drop port 22.
The molding material M conveyed by the lower conveyor 25 is further unraveled by the beater roller 29, and falls from the dropping port 22 to the disentanglement machine 31.

On the other hand, the disentanglement machine 31 is provided with a second housing 33 that forms a vertical drop path 32 for vertically dropping the molding material M. In the second housing 33, a pair of left and right fluffer rollers 34 and 35, which will be described later, are disposed immediately below the drop port 22. The fluffer rollers 34, 35 are rotationally driven in mutually opposite directions by motors 36, 37 installed outside the housing.
Is wound around the fluffer rollers 34, 35 and finely loosened. The molding material M is moved to the fluffer rollers 34, 35 by horizontally shifting the axis of the beater roller 29 by S with respect to the center of the fluffer rollers 34, 35.
It is designed so that it can be efficiently dropped onto the top.

Also within the second housing 33 is the fluffer roller.
A plurality of air nozzles 38 that open at positions below 34 and 35 are attached. Air is supplied to each air nozzle 38 from an air source (not shown) through an air pipe 39, and the air discharged from each air nozzle 38 loosens the molding material further finely. The air piping
A damper 40 is interposed in 39, and the direction in which the molding material M falls can be regulated by adjusting the amount of air discharged by the damper 40.

Here are the details of the fluffer rollers 34 and 35.
This is as shown in FIGS. 2 to 4. In these figures, 41 is a disk-shaped blade body having a radial blade portion 42,
Many are assembled on the rotary shaft 44 via the collar 43.
The intervals between the blade bodies 41 are adjusted so that the blade bodies of the opposing fluffer rollers can be inserted between them with a predetermined clearance c (FIG. 3). Each blade body 41
Also, when viewed in the axial direction of the rotary shaft 44, the blade portion 42 of one blade body is
Between adjacent blade bodies (here, the blade body and the blade portions are represented by reference numerals 41 'and 42' for convenience of description, respectively) so that the adjacent blade bodies can be positioned with respect to each other in the rotational phase. Has been set (Fig. 4). That is, in the present embodiment, as shown in FIG. 4, the phase of the blade body 41 'adjacent to the blade body 41' in the rotational direction is ½ of the blade angle θ (θ / 2). The blade portion 42 of one blade body 41
The blade portion 42 'of the adjacent blade main body 41' can be seen just in the middle. In order to change the phase in the rotational direction in this way, the key groove 45 provided in each blade main body 41 may be offset in the rotational direction by θ / 2 in advance, and it can be assembled to the rotary shaft 44 with the common key 46. , The phase of the rotation direction is automatically changed.

On the other hand, each of the fluffer rollers 34, 35 has a phase set in the axial direction of the blade body 41 so that the blade body of the opponent fluffer roller can be inserted between the blade portions 42 of its own blade body 41. There is. In addition, each fluffer roller 34, 35 has its own blade body 41.
To the opponent's fluffy roller color 43
The distance between the rotary shafts 44 is set so that the rotary shafts 44 can be inserted to the depth of facing each other (see FIG. 3). That is, the fluffer rollers 34, 35 wrap the respective blade bodies 41 with each other to form a predetermined gap. The blade body
41 is a flank 42 having a predetermined clearance angle α at the tip of the blade 42.
a is provided over a slight width B (FIG. 4). Further, each rotary shaft 44 is connected to the motor 3 via a pulley 47 and a belt 48.
The rotation of 6,37 is transmitted.
47 has a different diameter between each fluffer roller 34, 35,
The rotation speeds of the pair of fluffer rollers 34, 35 are mutually changed (Fig. 2).

By the way, the number of blades 42 of the blade body 41 is Z, the plate thickness of the blade body 41 is Ta, Tb, the base diameter of the blade body 41 is Da, and the outer diameter of the blade body 41 is Db. Including each desirable size range, Z = 6 to 20 sheets, Ta = 1 to 2Tb, Db = 1.5
˜5 Da, c = 0.1 to 1.5 mm, α = 0.5 to 30 °, B = 1 to 5 mm.

With such a configuration, the molding material M fed into the first housing 24 from the receiving port 25 at the upper portion of the carrier 21 is transferred to the upper conveyor.
26 onto the lower conveyor 27, and the doffing roller 28
Then, a large lump is unraveled and continuously conveyed to the drop port 22, where it is further unraveled by the bitter roller 29 and dropped from the drop port 22 into the second housing 33 of the disentangling machine 31. Then, the molding material M dropped into the second housing 33.
Is first dropped onto the pair of fluffer rollers 34, 35, and enters the gap of the blade main body 41 which rotates in a state of being overlapped with each other, and while passing there, is sufficiently loosened by the blade portion 42 of the blade main body 41. Be done. The molding material M loosened by the fluffer rollers 34, 35 is further loosened by the air discharged from the blow-out port 38 thereafter, falls on the flow of the air, and falls into the traverser 3a of the diffuser 3, where the traverser 3a It is deposited on the perforated plate 5 in the stacker 4 by rocking (fifth
(FIG.), Whereby a material assembly W having a predetermined shape is manufactured.

Although the fluffer rollers 34 and 35 are provided in a pair in the above embodiment, the number can be any number of one or more. Further, in the above embodiment, the air nozzle 38, the air pipe 40, etc. are provided in the disentangling machine 31, but these air blowing means can be omitted.

(Effects of the Invention) As described in detail above, according to the disentangling machine for a wood-based molding material according to the present invention, a plurality of blade portions are radially provided in the housing forming the drop passage of the molding material. A large number of blade main bodies having the above are arranged along the rotation axis, and at least one pair of fluffer rollers having different rotational direction phases between adjacent blade main bodies are provided, and the blade portions are mutually wrapped between the fluffer rollers, and Since the rotation speeds are different, the molding material can be loosened finely.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of a disentangling machine for a wood-based molding material according to the present invention, FIG. 2 is a sectional view showing a part of the same in an enlarged manner, and FIG. FIG. 4 is a side view showing the details of the fluffer roller used in FIG. 4, FIG. 4 is a front view of the fluffer roller, and FIG. 5 is a schematic view showing a manufacturing process of a wood-based molded body to which the present collecting apparatus is applied. 1 ... Collecting device, 2 ... Spreader, 3 ... Diffuser, 31 ... Dismantling machine 34, 35 ... Fluffer roller 36, 37 ... Motor, 41 ... Blade body 42 ... Blade section, 44 ... … Rotation axis 47 …… Pulley, 48 …… Belt M …… Molding material, W …… Material assembly

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Hitoshi Watanabe 28-1 Taroji, Tsutsumimoto-cho, Toyota-shi, Aichi Taihei Construction Equipment Co., Ltd. (56) Reference JP-A-60-131204 42-23103 (JP, B2) JP 57-26825 (JP, B2)

Claims (1)

[Claims] 1. A disentangling machine for unraveling a wood-based molding material in which a binder or the like is added to wood fibers, wherein at least a pair of fluffer rollers are provided in a housing forming a falling passage of the molding material, Each fluffer roller is formed of a rotating shaft and a large number of disc-shaped blade bodies mounted with a predetermined frame on the rotating shaft, and each blade body has a plurality of blade portions in the radial direction. , The rotating shafts are arranged adjacent to each other so as to have different phases in the rotating direction, and each of the rotating shafts has a blade body of one of the fluffer rollers in the gap of the blade body of the other fluffer roller. The mutual distance and the axial phase are set so as to be loosely inserted, and further, the pair of fluffer rollers operatively connect their rotation shafts to the driving means so as to rotate in opposite directions at mutually different rotation speeds. Wood that is characterized by The solution of the molding material 絡機.