JPH0121013Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an electrostatic flocking device that uses electrostatic attraction in a high-voltage electrostatic field to plant piles on a base material coated with an adhesive in advance.

(Prior art) In a conventional down-type electrostatic flocking device, a pile hopper is provided in the upper part of the flocking chamber, and the pile stored in the hopper is caused to fall by vibrating the pile hopper, and is then passed through a high-voltage electrode onto a ground electrode. However, the piles that are not flocked are collected in the pile collection chamber or pile collection bag at the bottom of the flocking chamber, and then manually returned to the pile hopper at the top of the flocking chamber. In addition, since the collected pile is once taken out of the flocking room and then fed to the pile hopper again, foreign matter may get mixed into the pile, causing defects in flocking such as craters. There are problems such as the pile scattering and pile loss.
Therefore, the present applicant proposed an improved version of this, as seen in Japanese Utility Model Application Publication No. 59-61860, by making the device a closed type to prevent the scattering of the pile, while automating the circulation of the pile to allow it to flow into the pile. We have developed an electrostatic flocking device that eliminates the contamination of foreign substances and have previously filed an application.

(Problem that the invention aims to solve) However, when trying to transplant thick piles with a thickness of 10 to 20 denier and lengths of 3 to 20 mm, curly curly piles, etc. using this device, the piles become tangled. There is a problem that when the pile becomes a lump, it tends to form a lump, and when the pile becomes a lump, the mesh of the vibrating sieve is blocked, the amount of pile supplied decreases by the amount of the lump, and uneven flocking occurs in the flocked product.

(Means for solving the problem) The present invention was completed with the aim of creating an electrostatic flocking device that solved the problems mentioned above. In an electrostatic flocking device, which is provided with a high voltage electrode, a vibrating sieve, and a pile supply port, and a pile collection hopper is provided in the lower part of the electrostatic flocking chamber, and the bottom of the pile collection hopper is connected to the pile supply port via a pile circulation mechanism, A main sieve mesh portion in which the vibrating sieve is the same size as the ground electrode and the high voltage electrode or slightly larger than both electrodes, and a sub sieve screen for removing pile nodules having a much larger opening than the main sieve mesh portion continuing on the outer periphery thereof. It is characterized in that it consists of parts.

(Function) With this structure, the door is opened and the flocked material coated with adhesive is supported on the ground electrode provided in the electrostatic flocking chamber, and the door is closed and the flocking material is placed in the electrostatic flocking chamber. If the pile is started in a sealed state, the pile that is fixedly sent from the bottom of the pile collection hopper to the supply port via the pile circulation mechanism will be blown out from the pile supply port provided at the top of the electrostatic flocking chamber. After being uniformly dispersed on the vibrating sieve, the sieve is dropped onto a high-voltage electrode through the main sieve in the center of the vibrating sieve, and is accelerated by this high-voltage electrode toward the material to be flocked, perpendicular to the surface of the material to be flocked. The piles that are flocked to the pile but not flocked to the flocked material are collected at the bottom of the pile gathering hopper, and on the other hand, when the pile is turned into agglomerates on the vibrating sieve, the pile agglomerates on the vibrating sieve move to the outer periphery due to vibration. . However, the outer periphery of this vibrating sieve is formed into a sub-sieve mesh section for removing pile nodules, which has a much larger mesh opening than the main sieve mesh section in the center, and the main sieve mesh section is so large that it is similar to the ground electrode. and is the same size as the high voltage electrode or slightly larger than these two electrodes, so
Pile nodules fall and collect from outside the frame of both electrodes into the pile gathering hopper through the mesh of the sub-sieve screen, and are broken and dispersed again by the pile circulation mechanism together with the piles that fell from the main screen and were not flocked to the flocked material. The pile is sent to the pile supply port in this state, and the above steps are repeated.

(Embodiments) Next, illustrated embodiments of the present invention will be described in detail.

Reference numeral 1 denotes an electrostatic flocking chamber that is sealed from the outside, and inside the electrostatic flocking chamber 1, copper wires with a diameter of 0.2 mm are placed in parallel to support the base material to be flocked, that is, the flocked material 20.
Install a ground electrode 2 with 20 wires and place it above it.
A DC40KV high voltage electrode 3 with 20 copper wires of 0.2mm diameter stretched in parallel is installed at a distance of 200mm, and a vibrating sieve 4 is installed above the electrode 3, and a pile is placed above the vibrating sieve 4 to cover the flocked material. 400 per minute per square meter
A pile supply port 5 for supplying the gram to the vibrating sieve 4 is provided. A pile collecting hopper 7 is provided at the bottom of the electrostatic flocking chamber 1, and a pneumatic pipe 9 constituting a pile circulation mechanism 8 and a screw leading to a pile dispersion box 10 at the base of the pneumatic pipe 9 are provided at the bottom of the pile collecting hopper 7. A conveyor 11 is provided. The vibrating sieve 4 has a main sieve mesh portion 13 having a mesh size of about 3 meshes, which is the same size as the ground electrode 2 and the high voltage electrode 3, or slightly larger in outer diameter, and a main sieve mesh portion 13 having a mesh size of about 0.5 meshes continuing on the outer periphery of the main sieve mesh portion 13. Sub-sieve screen section 12 for removing pile nodules, which has a much larger opening than the screen section 13
It is assumed that the In addition, 14 in the figure is provided in the pile distribution box 10 and the pile distribution box 10 is
1.5 m
Air nozzle that disperses with a pressure of ~4Kg/ ^cm2 ,
15, the pile sent to the pneumatic pipe 9 is passed through the air nozzle 14 to the pile supply port 5 through a nozzle opening of approximately φ5.
A jet-type auxiliary air nozzle 6 is a vibrator of the vibrating sieve 4, which feeds the air at a pressure slightly stronger than that of the air. Furthermore, in the above description, the pile circulation mechanism 8
Screw conveyor 11 and auxiliary air nozzle 15
Although it is made up of a pneumatic pipe 9 with an attached pneumatic pipe 9 and a pile distribution box 10 with an air nozzle 14, a part of them may be omitted or another circulation mechanism may be used.

(Effects of the invention) This type of electrostatic flocking device circulates the pile without using human hands and does not introduce foreign matter into the pile, so there is no loss of piles and the working environment is improved. However, in the present invention, in particular, the vibrating sieve 4 has a main sieve mesh section 13 that is the same size as the ground electrode 2 and the high voltage electrode 2 or slightly larger than both of these electrodes, and the main sieve section that continues on the outer periphery of the main sieve mesh section 13. Since it consists of a sub-sieve screen section 12 for removing pile nodules, which has a much larger opening than the screen section 13, most of the piles evenly distributed on the vibrating sieve 4 fall into the central main screen section. It falls onto the high voltage electrode 3 through the mesh of 13, and this high voltage electrode 3 connects the ground electrode 2.
Needless to say, the flocking is accelerated toward the flocked material 20 supported by the sieve 4, and even if a part of the pile becomes agglomerates on the vibrating sieve 4, the pile agglomerates move to the outer periphery due to vibration, and the flocking material 20 is It falls through the mesh of the secondary sieve screen section 12 for removing pile nodules, which has a large opening, and passes through the outside of both electrodes without being affected by the electric field of the ground electrode 2 and high voltage electrode 3 and without contacting the flocked material 20. It reaches the pile collection hopper 7, and the pile circulation mechanism 8
While being circulated to the pile supply port 5, the nodules are broken and dispersed and reused, and when they are again supplied onto the vibrating sieve 4,
This eliminates problems such as clogging of the mesh or uneven flocking in the flocked material 20 due to a decrease in the amount of pile supplied.

Therefore, the present invention has great practical value as it solves the problems of conventional electrostatic flocking devices.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention, and FIG. 2 is a partially cutaway plan view. 1... Electrostatic flocking chamber, 2... Ground electrode, 3... High voltage electrode, 4... Vibrating sieve, 5... Pile supply port, 7...
...Pile gathering hopper, 8...Pile circulation mechanism, 9
...Pneumatic pipe, 12...Auxiliary sieve screen section for removing pile nodules, 13...Main sieve screen section in the center.

Claims (1)

[Scope of utility model registration request] A high voltage electrode 3, a vibrating sieve 4 and a pile supply port 5 are sequentially provided above a ground electrode 2 provided in an electrostatic flocking chamber 1 which can be sealed, and a pile collection hopper 7 is provided at the bottom of the electrostatic flocking chamber 1. In an electrostatic flocking device whose bottom part is connected to the pile supply port 5 via a pile circulation mechanism 8, the vibrating sieve 4 has a main sieve mesh that is the same size as the ground electrode 2 and the high voltage electrode 3 or slightly larger than both electrodes. An electrostatic flocking device characterized by comprising a section 13 and a sub-sieve screen section 12 for removing pile nodules, which has a much larger opening than the main screen section 13 and continues on the outer periphery thereof.