JPS627475A - Method for applying adhesive to filter element - Google Patents

Abstract

PURPOSE:To enable a proper amount of coating, in an adhesive coating method for forming a filter element end plate, by inserting the end part of a filter element in a definite amount of an adhesive layer and subsequently lifting up the element to prescribe the insert amount of the end part. CONSTITUTION:A definite amount of the layer of an adhesive 3 such as a heat curable type vinyl chloride resin is formed on a transfer plate 10 by utilizing a screen plate. Next, the end part of a filter element 5 coming to the parts of an air cleaner or oil cleaner is inserted in the adhesive 3 on the transfer plate 10 and the filter element 5 is slightly lifted up to prescribe the insert amount of the end part of the filter element 5 in the layer of the adhesive 3. Thereafter, the transfer plate 10 is moved to a horizontal direction to shear and release the adhesive 3 and the filter element 5 is introduced into a drying oven to heat and cure the adhesive 3 on the end part to obtain a filter element assembly.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a filtration element used in air cleaners and oil cleaners, and more particularly to a method of applying an adhesive to the filtration element to form an end plate.

(Prior Art) A conventional adhesive coating method will be explained based on FIG. 4. First, in step (a), a fixed amount of adhesive 3 such as vinyl chloride is supplied to end plate 2 using adhesive dispenser 1 . (bl
In the process, the end plate 2 is rotated using a level adjuster 4 such as a spatula, and the adhesive 3 is applied to the inside of the end plate 2 at an even height. (C)
In the process, two end plates 2 having adhesive 3 are prepared, fitted onto the top and bottom of a filtration element 5 such as an oil filter, and integrated by applying a load. In step fd), the adhesive 3 is placed in a drying oven 7 and cured by heating to manufacture the oven 1 element assembly 6. A partial sectional view of the filter element assembly 6 manufactured in this manner is shown in FIG.

(Problems to be Solved by the Present Invention) As shown in FIG. 4, the higher the density of the filter element 5, the more the adhesive 3 penetrates into the filter element 5 as shown in FIG. (for example, 3 to 4 mm), or the adhesive 3 protrudes from the end plate 2 at the outermost periphery of the filtration element 5, resulting in a reduction in the filtration area of the filtration element 5. Furthermore, since there is a large amount of unnecessary adhesive 3 that enters into the element 5, there is a problem that the cost of the adhesive increases.

(Means for Solving the Problems) The present invention involves forming a certain amount of a heat-curable adhesive layer on a transfer plate, inserting an end of a filter element into the adhesive layer, and then attaching the adhesive layer to the transfer plate. Lift the transfer element to control the amount of insertion of the transfer element into the adhesive layer at the end, move the transfer plate in the horizontal direction to shear and peel off the adhesive layer from the transfer plate, and then The adhesive layer formed at the end of the filter element is configured to be cured by heating.

(Function) In the present invention, since the end of the filtration element is lifted after inserting it into a certain amount of the adhesive layer, the amount of insertion of the end of the filtration element into the adhesive layer is reduced. The amount of adhesive that enters the inside of the filter element can be controlled to an appropriate amount and can be reduced compared to conventional methods. Further, since an end plate as a separate part is not used, the adhesive does not push out to the outermost periphery of the mud filter element due to being pushed by the end plate.

(Effects of the Invention) Therefore, according to the present invention, the area of the filter element is not reduced, and adhesive is not used unnecessarily. Furthermore, after the adhesive layer is heated and cured, it can be used as an end plate, and there is no need for an end plate as a separate component.

(Example) The adhesive coating method of the present invention will be explained below based on FIG. 1. In step fa), a screen plate 9 is set on the transfer plate 10, and a fixed amount of adhesive 3 is discharged from the adhesive discharger 1 onto the screen plate 9.

The adhesive 3 is, for example, a thermosetting vinyl chloride resin. (In the BL process, the skin 8 is moved onto the screen plate 9, and the adhesive 3 is supplied to the space in the shape where the adhesive is to be applied. (In the C1 process, the screen plate 9 is removed and the adhesive 3 is applied onto the transfer plate 10. In the step (d), insert the end of the filter element 5 into the adhesive 3 on the transfer plate 10, and (in the el step, lift the filter element 5 slightly upwards and insert it into the layer of adhesive 3). This controls the amount of insertion of the end of the element 5. In step (f), the adhesive 3 is sheared and peeled off by moving the transfer plate 10 in the horizontal direction.

After this, some of the adhesive 3 remains on the transfer plate 10 and is reused. In this way, form the end plate with adhesive 3 and (
g+l step: Place in drying oven 7 and heat at about 150℃ for 15~20 minutes.
The filter element assembly 6 is manufactured by heating and curing for a few minutes. Filtration element assembly 6 manufactured in this way
A partial cross-sectional view of is shown in FIG. With this method, the end plate is formed with the adhesive 3, and only about 0.5 to 1 mm of adhesive intrudes into the filtration element 5, and a large filtration area of the filter can be secured. The amount of adhesive that enters can also be reduced, and there is no need to separate the conventional end plates.

Next, an adhesive coating apparatus using this method will be described in detail with reference to FIG. 11 is a frame, and 12 is a cylinder fixed to the frame 11, which moves the adhesive discharger 1 up and down.

A cylinder 13 is fixed to the frame 11 and is used to horizontally move the skin 8 on the screen plate 9.

Reference numeral 10 denotes a transfer plate, which is divided into six parts, for example, as shown in FIG. 3 (bl), and is connected to a plurality of cylinders 14 to horizontally move each block 10a.

Further, this cylinder 14 is movably fixed to a transfer plate mounting stay 14a. Reference numeral 15 denotes a cylinder that moves the temporary transfer attachment stay 143 up and down. This cylinder 15 is attached to a transverse stay 153, and the frame 11
It is horizontally moved by a cylinder 16 attached to. Reference numeral 17 denotes a chuck that sandwiches the filter element 5, and is rotatable by a motor 18. 20 is a cylinder,
This is to move the Nayasoku 19a up and down.

The operation of the above configuration will be explained. A fixed amount of adhesive 3 such as vinyl chloride is supplied from the adhesive dispenser l to the screen plate 9, and by horizontally moving the cylinder 13, the skin 8 is moved, and the adhesive is applied to the transfer plate 10, which is divided into six parts. 3
Apply. Thereafter, the cylinder 6 is moved forward, the cylinder 15 is raised, and brought into contact with the filtration element 5 held by the chuck 17, and the end of the filtration element 5 is bonded with the adhesive 3.
to invade inside. After that, the cylinder 20 is slightly raised, and then the cylinder 14 is moved horizontally, the transfer plate 10 is opened radially, and the adhesive 3 is applied to the filter element 5 by shearing. The filter element 5 can then be reversed by the motor 18 and the adhesive 3 applied to the opposite side of the filter element 5 in the same manner as described above. The driving sources for each of the seven cylinders are air pressure, oil pressure, and a motor.

In addition, in the present invention, the composition of the adhesive 3 may be an epoxy resin or an acrylic resin, and the composition is approximately 40,000 to 1,000.
A heat-curing type with 00Cp clay is preferable.

[Brief explanation of the drawing]

FIG. 1 fat to fg) are process diagrams explaining the method of the present invention,
FIG. 2 is a cross-sectional view of a main part of a filter element assembly obtained by the method of the present invention, FIG. 3 fa is a cross-sectional view showing an apparatus for implementing the method of the present invention, and FIG. 4(a) to 4(d) are process diagrams showing the conventional method, and FIG. 5 is a sectional view of the main part of the over-element assembly obtained by the conventional method. 3... Adhesive, 5... Filtration element.

Claims (1)

[Claims] A certain amount of heat-curable adhesive layer is formed on the transfer plate, and the end of the filtration element is inserted into the adhesive layer, and then the filtration element is lifted and the end of the filtration element is bonded with the adhesive at the end. The amount of insertion into the layer is regulated, the transfer plate is moved horizontally to shear and peel off the adhesive layer from the transfer plate, and then the adhesive layer formed at the end of the filtration element is cured by heating. A method for applying adhesive to a filtration element, characterized by: