JPH0314400B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an apparatus for making paper cone for speakers, in which a cone portion and an edge portion made of different materials are integrally bonded by intertwining of fibers.

BACKGROUND ART A conventional speaker cone paper making device has a cone portion a in an upper opening, as shown in FIG.
A series of paper molds 30 are attached to the paper mold 30, and the paper mold 30 is divided into an inner chamber 32 and an outer chamber 33 by a separator 31 located at the boundary between the cone portion a and the edge portion b. In order to simultaneously supply and drain water from 32 and 33, a paper-making mold table 35 communicates with each other through a hole 34 made in the separator 31, a bucket 36 that fits into and removes from the paper-form table 35, and an inlet 37 for feeding raw materials to the bucket 36. , an air blower 38 for well mixing the raw material and water in the bucket 36, and the papermaking mold table 3.
This device is equipped with a ventilation valve V5, a water supply valve V6, and a water supply/drainage pipe 39 equipped with a drain valve V7 for supplying and discharging water to the inner chamber 32 in the bucket 36. Then, by applying different amounts of water to the inner chamber 32 and outer chamber 33 of the paper-making die 35, more raw material arrives at the cone section a of the paper-making die 30, and less material arrives at the edge section b. In this way, the thick cone part and the thin edge part are integrally made from the same kind of raw material.

Problems to be Solved by the Invention Therefore, in the speaker cone paper obtained by the conventional paper making apparatus described above, since the edge portion is made from the same short fiber raw material as the cone portion, the acoustic signal of the cone paper is not affected. If the edge part is made thin in order to allow the base vibration to occur freely, the mechanical strength of this part will be reduced and it will not be able to withstand strong vibration energy.
Causes shearing of the edges. If the edge portions were made thicker to prevent this, the vibrations of the paper cone would be suppressed, making it impossible to vibrate in response to the input, resulting in a problem of significantly degrading the acoustic characteristics.

The present invention has been made to solve the above-mentioned conventional problems, and is a product that satisfies both power resistance and acoustic characteristics by making a paper so that the cone part and the edge part are interconnected with different materials. The purpose of the present invention is to provide a paper making device for speaker cone paper that obtains the following characteristics.

Means for Solving the Problems As shown in FIG. 1 of the drawings of the embodiment, the present invention includes a paper mold 2 having a series of cone portions a and edge portions b attached to an upper opening, and a lower part of the paper mold 2. The separator 3 located at the boundary between the cone part a and the edge part b of the paper mold 2
A papermaking mold stand 1 divided into an inner chamber 4 and an outer chamber 5 by
and an outer bucket 6 that fits into and removes from the paper-making mold table 1, and a minute space 7 that is provided in the outer bucket 6 in correspondence with the separator 3 and allows the raw material to flow between it and the paper-making mold 2. an inner bucket 8, raw material inlets 20, 21 for feeding raw materials to the inner bucket 8 and the outer bucket 6, and water supply and drainage pipes for supplying and draining water to the inner chamber 4 and outer chamber 5 of the papermaking mold table 1. 2
2 and 23.

Function The speaker cone paper making apparatus having the above-mentioned structure has an outer bucket 6 fitted onto the paper mold table 1, a minute gap 7 being maintained between the inner bucket 8 and the paper mold 2, and water supply and drainage. Water is supplied to the inner chamber 4 and outer chamber 5 of the papermaking mold table 1 through the pipes 22 and 23, and the buckets 6 and 8
Collect water until it reaches the specified water level in the inner bucket.
The raw material for the cone part a, which mainly consists of ordinary paper pulp, is fed into the inner bucket through the inlet 20, and one or more types of manila hemp, mitsumata, cotton, kapoku, etc. are mixed into the outer bucket 8 through the inlet 21. Edge part b
The raw material for paper making is fed into the inner chamber 4 of the papermaking mold table 1.
Drainage is carried out from the inner chamber 4 and the outer chamber 5 through water supply and drainage pipes 22 and 23, and this drainage is carried out alternately between the inner chamber 4 and the outer chamber 5. That is, when draining water from the inner chamber 4 and extracting water from the raw material for the cone part a in the inner bucket 8,
When draining water from the outer chamber 5 and squeezing the raw material for the edge portion b without draining the outer chamber 5, the raw material for the cone portion a is squeezed without draining the inner chamber 4. At this time, the raw material for edge part b in the outer bucket 6 flows from the minute space 7 to the cone part a, and
When squeezing the raw material, if the operation of flowing the raw material for the cone part a in the inner bucket 8 from the micro space 7 to the edge part b is performed several times, the boundary between the cone part a and the edge part b becomes The material of the cone part a and the material of the edge part b are laminated and intertwined with each other, so that they are strongly bonded, and the cone part a and the edge part b are made of different materials and exhibit the characteristics required for each. This machine forms speaker cone paper in one step.

In addition, this paper-making apparatus does not change the type of raw material supplied to the outer bucket 6 and the inner bucket 8 as described above, but can accommodate the same raw materials with different concentrations or different degrees of disintegration. By using the same raw materials, it is possible to make a product with different characteristics between the cone part a and the edge part b, but in this case, the resistance to power and the acoustic properties will be lower than when using a special material for the edges. However, compared to products made using conventional equipment, superior products can be obtained.

Embodiments The present invention will be described in detail below based on embodiments shown in the drawings.

FIG. 1 shows an apparatus showing an embodiment of the present invention.
A paper mold 2 formed of a wire mesh is attached so as to continuously form paper with the cone part a and the edge part b, and a blade-shaped edge part is attached to the lower part of the paper mold 2 at the boundary between the cone part a and the edge part b of the paper mold 2. An inner chamber 4 and an outer chamber 5 are defined by a separator 3 that is in contact with the inner chamber 4.

Reference numeral 6 denotes an outer bucket that is inserted into and removed from the above-mentioned paper-making die table 1, and inside thereof, corresponding to the above-mentioned separator 3, there is provided a minute space 7 through which the raw material flows between the blade-shaped edge portion c and the paper-making die 2. An inner bucket belt 8 is provided to form an inner bucket belt 8, and this inner bucket belt 8 is attached to the outer bucket belt 6 by an adjustment screw 9, so that the minute distance 7 can be adjusted within a maximum range of 1 mm by operating the adjustment screw 9. At the same time, depending on the product, the inner pail 8 may have a larger diameter at the upper part as shown in FIG. 4 so that it can accommodate the same amount of water as the outer pail 6.

Reference numeral 10 indicates a way to connect these three positions A, B, and C above the above-mentioned installation position A of the papermaking mold table 1, the above-mentioned relief position B of the outer bucket 6, and the product take-out position C by the dewatering upper mold described later. With the horizontal guide installed in
A carriage 11 having a length corresponding to the distance between positions A and B and A and C is engaged with this guide 10.

12 is a rod 13 at one end of the carriage 11 described above.
With the cylinder installed with the rod facing downward, the rod 1
The above-mentioned outer bucket belt 6 is attached to the lower end of the mold 3, and when the rod 13 is lowered, the outer bucket belt 6 is fitted onto the paper-making mold stand 1, and when the rod 13 is raised, the outer bucket belt 6 is detached from the paper-making mold table 1.

14 is a rod 15 at the other end of the carriage 11 described above.
With the cylinder installed with the rod facing downward, the rod 1
A dewatering upper mold 16 is attached to the lower end of the paper mold 5 to pick up the product made by the paper mold 2, and when the rod 15 is lowered, the dewatering upper mold 16 hits the product on the paper mold 2, and when the rod 15 is raised, the product is removed from the paper mold 2. break away.

Reference numeral 17 denotes a vacuum tube connected to the above-described upper dehydration mold 16. When the upper dehydration mold 16 comes into contact with the product, suction force is applied to the contact area to adsorb the product and dehydrate it, so that the upper dehydration mold 16 When the product reaches the contact removal position C, the suction force is stopped and the product is released.

Reference numeral 18 denotes a cylinder in which a rod 19 is connected to the above-mentioned carriage 11, and when the outer bucket cart 6 is positioned above the paper-making mold stand 1 by adjusting its stroke to the intervals of the above-mentioned positions A, B, and A, dewatering is performed. Upper mold 1
6 is located above the product take-out position C, and when the outer bucket 6 is moved above the relief position B, the dewatering upper mold 16 is moved above the papermaking mold stand 1.

Reference numerals 20 and 21 are feed ports for raw materials provided in the inner bucket 8 and the outer bucket 6. The feed port 20 feeds the raw material for the cone part a into the inner bucket 8, and
1 is for feeding the raw material for edge part b into the outer bucket 6, but at the boundary between cone part a and edge part b, as shown in FIG.
A part of the raw material for the edge part b and a part of the raw material for the edge part b are flowed into the edge part b and the cone part a through a small gap 7, so that the two raw materials become entangled.

22 and 23 are water supply and drainage pipes for supplying and draining water to the inner chamber 4 and outer chamber 5 of the papermaking mold table 1, and both the pipes 22 and 23 are equipped with a water supply pipe d to which water is sent from a water source, and a drainage pump, respectively. (not shown in the drawing) is connected to a drain pipe e for discharging the squeezed water, and the water pipe d is connected with a ventilation valve V1 and a water supply valve V2, and the drain pipe e is connected with a flow rate adjustment valve V3 and a drain valve V4. is provided.

Reference numerals 24 and 25 denote double drainage adjustment rings provided in the outer chamber 5 of the papermaking mold table 1, and as shown in Fig. 3, a large number of holes f and g are bored at equal pitches on the top and side surfaces of the ring, and these holes are By draining water through f and g, the amount of water drained from each part of the outer chamber 5 is averaged, and both holes f and
The amount of water discharged can be finely adjusted by adjusting the amount of g.

When making cone paper for speakers according to the above embodiment, the carriage 11 is moved by the cylinder 18.
is placed in the position shown in Figure 1 of the drawings, the upper mold 16 for dewatering the product is held above the product take-out position by the cylinder 14, and the outer bucket 6 is lowered onto the paper mold table 1 by the cylinder 12 and attached thereto. Once the paper is attached, it will be in the papermaking state, so in this state, papermaking is carried out as explained in the section of operation. When the cone paper is formed on the papermaking mold 2, the outer bucket 6 is pulled up by the cylinder 12, and the carriage 11 is moved by the cylinder 18. is moved toward the product removal position C of the outer bucket 6, and when the dewatering upper mold 16 is moved onto the papermaking mold table 1, the carriage 11
is stopped, the outer bucket 6 is positioned above the relief position B, the dewatering upper mold 16 is lowered by the cylinder 14 onto the product made into the paper mold 2, and the vacuum tube 17 applies suction force to the contact part. In this state, the cylinder 14 pulls up the dewatering upper mold 16, and the cylinder 18 moves the carriage 11 toward the product take-out position C of the dehydrating upper mold 16. If the outer bucket 6 reaches the top of the papermaking mold table 1, the dewatering upper mold 16 will reach the product take-out position C.
At this time, the carriage 11 is stopped, the dewatering upper mold 16 is lowered by the cylinder 14, the suction by the vacuum pipe 17 is stopped, and the product is dropped into the receiving part.
If the outer bucket 6 is fitted onto the paper making table 1 by the cylinder 12 to perform the next paper making, the outer bucket 6 and the dewatering upper die 16 can be automatically operated to efficiently produce uniform products. It is something that can be done.

FIG. 5 shows other operating means for the outer bucket 6 and the upper dewatering mold 16. with the other arm 2
8, the dewatering upper mold 16 is suspended from the cylinder 14, and the two forked arms 27 and 28 are moved by the torque actuator 29 to the installation position A of the papermaking mold table 1, the relief position B of the outer bucket 6, and the dewatering upper mold. In contrast to the example shown in FIG. 1, in which the positions of the outer bucket 6 and the dewatering upper mold 16 are changed by linear reciprocating motion of the carriage 11. , the difference is that this is performed by rotational reciprocating motion, but the effects are the same.

Effects of the Invention As mentioned above, the present invention allows the cone portion and the edge portion to be made of materials suitable for each, so that a cone paper with excellent acoustic properties and high output that vibrates faithfully and sensitively to audio signals can be produced. can get.

Since the boundary between the cone part and the edge part is connected by laminated entanglement of the raw material for the cone part and the raw material for the edge part, a cone paper with high force resistance that will not be damaged even by strong vibration energy can be obtained.

Even when using the same raw material, by changing the concentration, degree of disintegration, etc. for the cone portion and edge portion, it is possible to obtain cone paper with different characteristics for the cone portion and edge portion.

A small gap exists between the inner bucket and the paper mold, and water is squeezed alternately from the inner and outer chambers of the paper mold table, so that the raw material for the cone part and the raw material for the edge part are placed at the boundary between the cone part and the edge part. It is possible to automatically create a strong bond in which raw materials are layered and intertwined.

It has the following unique effects.

[Brief explanation of the drawing]

FIG. 1 is a partially longitudinally sectional front view of an embodiment of the present invention. Fig. 2 is a partial sectional view showing the intertwining of raw materials between the paper mold and the inner bucket in the same manner as above. FIG. 3 is a partial cross-sectional plan view of the drainage adjustment provided outside the papermaking mold stand in the same as above. FIG. 4 is a vertical sectional front view showing another embodiment of the inner bucket bag same as above. FIG. 5 is a plan view showing another embodiment in which the bucket and the dewatering upper mold are reciprocated. FIG. 6 is a longitudinal sectional front view showing a conventional papermaking apparatus. In the figure, 1 is the papermaking die table, 2 is the cone part a and the edge part b
3 is a separator, 4 is an inner chamber,
5 is an outer chamber, 6 is an outer bucket, 7 is a small chamber, 8 is an inner bucket, 20 and 21 are raw material inlets, and 22 and 23 are water supply and drainage pipes.

Claims (1)

[Claims] 1 A paper mold with a series of cone parts and edges was attached to the upper opening, and the lower part of the paper mold was divided into an inner chamber and an outer chamber by a separator located at the boundary between the cone part and the edge part of the paper mold. A papermaking mold stand, an outer bucket that fits into and removes from the papermaking mold stand, and an inner bucket which is provided in the outer bucket in correspondence with the separator and has a minute gap between it and the papermaking mold to allow the raw material to flow. and a raw material inlet for feeding raw materials to the inner bucket and the outer bucket, and a water supply and drainage pipe for supplying water to and draining water from the inner and outer chambers of the paper mold table. Cone paper making equipment.