JPS60109811A - Thermal bonding press - Google Patents

Abstract

PURPOSE:To comfirm adhesive state on line during production for close seal by a method wherein pressing is conducted as air is exhausted or material is finely dispersed in a thermal bonding press. CONSTITUTION:One elastic body 3 made up of an arcuate silicone foam in which thickness is reduced gradually from the middle part toward the circumference and a perforated elastic sheet 4 that is provided with several holes and made up of 5mm. thick silicone rubber are arranged by adhesion to the lower press plain plate 2 in this order and, moreover, the plain plate elastic body 7 is fitted by adhesion to the upper plain plate 1 also, an adhered material composed of the non-adhesive outer layer sheet 5 and the non-adhesive inner layer material 6 is held between these two plain plates upper and lower to be pressed.

Description

[Detailed description of the invention]

(B) Technical Field of the Invention The present invention relates to a laminate structure in which each layer of a laminate having two or more flexible layers is bonded and integrated, such as a laminate structure that requires waterproofness. The present invention relates to a thermal adhesive press processing device for obtaining heating equipment using a planar heater such as an electric carpet. (b) Conventional technology 4e consisting of at least two layers (the technology of thermally bonding each layer in order to integrally process a kimono is publicly known. In other words, the adhesive surface of each layer is preliminarily bonded with a bot-melt type or A one-layered structure can be obtained by applying a heat-reactive adhesive and applying heat to the J5 layer, and heating and pressing it with a thermal bonding press machine consisting of an overlapping U, a flat plate heater, etc., and at this time, In order to prevent heating and pressure from becoming uneven due to irregularities in the surface shape of the object to be contacted, it is known that a flat elastic body is placed between the flat heaters at the top and bottom of the thermal bonding press machine as a cushioning material. However, for example, in a conventional device of this type, if a material to be doped in the inner layer of a three-layer laminate is sealed and bonded with an airtight outer layer sheet to make it waterproof, The following problem arises: In order to make a honeymoon seal, the outer layer sheet is usually prepared slightly larger than the inner layer material and overlapped to completely cover the inner layer material, but the outer layer sheets 1- are facing each other. When the adhesive is applied to the mating inner surface and heated and pressurized with a flat plate, dense J1 adhesion tends to start from the peripheral part of the outer layer sheet where the contact surface contacts.For this reason, The air escape route between the layers is closed, and the bonding process is completed with air still present, preventing the monolithic structure with a flat and strong bonding surface from breaking. And J, 7.
:, the structure is 9. If the final product is visible to the general public, it will have an extremely undesirable appearance! 11. Next is the issue of production management. In other words, waterproofing is mandatory for products that require insulation, such as electric carpeller 1, and sealing adhesives for this purpose are naturally more reliable than regular overlapping bonding. High contact processing is often required. However, with conventional equipment, this processing reliability can be improved by adjusting the temperature and pressure of the upper, lower, and flat plate heaters.
qJζ, but this is only an indirect /,j method and does not account for the actual temperature of the bonding surface and the pressure point, so it is important to consider changes in the surrounding outside air temperature, fatigue level of the cushion system, etc.
Due to disturbances such as fluctuations in production speed, stable production conditions cannot be obtained and reliability is low. Furthermore, since there is no means for directly inspecting the adhesive state after processing, there is a problem in that a great deal of effort must be spent to handle and inspect each piece. (Han) Purpose of the present invention The present invention eliminates the deficiencies of the prior art as described above, and
・Excludes air during thermal bonding press processing for J-sealing,
Alternatively, by pressing while finely dispersing, it is possible to obtain a laminated 4M JU product with strong adhesion and a beautiful appearance. The purpose is to provide two additional devices. (d) Structure of the present invention The present invention has the following structure in order to achieve the above-mentioned object [1]. In other words, in a thermal bonding press processing device that clamps a stacked object between two flat plates and heats and presses them to integrate them,
On the -h 464 Wj object holding surface of the flat plate, from the center to the periphery.

[This is a thermal bonding press processing device in which an elastic body having a shape in which the hole 19 gradually decreases is provided, and an elastic sheet having a plurality of holes is strung on the elastic body. The present invention will be explained in more detail below using examples and with reference to the drawings. 1 to 4 are diagrams for explaining the thermal bonding press device according to the present invention, respectively. FIG. 1 is a sectional view of the device, and FIG. Figure 4 shows the lower press flat plate, the elastic body, and the elastic sheet 1.
[Fig. In Fig. 1, reference numerals 1.2 are upper and lower press flat plates, and either one or both of the press flat plates 1.2 have a structure that is heated by a heating medium such as a boom (not shown) or an electric heater. In addition, between the outer layer sheets of the adherend having a length and width of approximately 1800 m (not indicated by 5), an inner layer material 6 of the adherend having a length and width of approximately 160 CIIL each, which is smaller than this, is placed. 300 to 600 pieces of sandwiched laminate! ]/1ffl, it moves f1 in the direction of applying pressure. In the embodiment shown in FIGS. 1 and 2, a plurality of holes are formed in the lower press flat plate 2, such as an elastic body 3 made of a semicircular silicone foam whose thickness decreases from the center to the periphery. The perforated elastic sheets 4 made of silicone rubber having a thickness of 5IllIIl are arranged one by one in this order, and the flat elastic sheets 7 are also placed on the upper press flat plate 1.
This is also done by gluing, and the object to be bonded, consisting of the outer layer sheet 5 and the inner layer material 6, is sandwiched and pressed between the two upper and lower plates. Bullet 11-3 is designed to reduce the heat in the direction from the medium heat section to the periphery, so that when pressing the object with the upper and lower press plates 1.2, the inside of the object is reduced. It plays the role of sequentially releasing air from the fire to the surrounding area □, thereby preventing large air bubbles from remaining on the adhesive surface. here,
The shape in which the cross section of the elastic body 3 gradually decreases from the medium heat part to the peripheral part means, in addition to the semicylindrical shape shown in this embodiment, a shape similar to a d'3 bowl turned upside down, or a shape similar to a four-sided pyramid. Includes things with a shape. Therefore, the thickness of the elastic body 3 depends on the size of the object to be adhered and the hardness of the IP elastic body 3 itself, but it is best to have a thickness of about 12 to 18 mm in the medium heat part and about 2 to 3 III in the peripheral part. In addition to the silicone foam described above, silicone rubber, chloroprene rubber, or the like can be used as the body. However, in the case of the elastic body 3 (), if the surface of the elastic body 3 itself becomes uneven due to deformation strain due to thermal deterioration of the elastic body 3, or if the object to be adhered itself has unevenness,
Bubbles with a diameter of about 10 to 20 nV that cannot escape are generated between the layers of the object to be contacted. The perforated elastic sheets 1 to 4 provided on the elastic body 3 effectively act on these bubbles. That is, these relatively large bubbles (as shown in FIG.
They are dispersed as small bubbles between the layers of the six objects located near the holes around the hole, and are regularly arranged in the shape of approximately the same size as 4. . Holes (elastic material sheets 1 to 4 are white 4 when pressed)
In order to prevent clogging of the holes due to the elastic deformation of '1', a relatively hard material such as needle-punch non-woven polynisdel4) or wool or cotton felt can be used. [, this elastic sea 1 to 4 reflection I decay or,
Should be selected appropriately depending on the size and number of holes, the structure of the J-shaped tongue G of seams 1 to 4, the structure of the L shielded object, the required performance, and the temperature and pressure conditions 1'1, If the hardness is 60 to 70, a diameter of 5 to 70 mm is added to the 5 mm thick bullet f1 sea 1-4.
It is preferable to punch out 10 mm holes using a commercially available JJ punch, etc., and arrange them in grid points of 5 Q mm square.
゛<L, hole fJ
In Fig. 3, a diameter corresponding to the hole diameter of the elastic seams 1-4 is shown as a hole (C). By determining the arrangement as a pattern, it is possible to recognize it as a pattern.Also, by observing the shape of this protrusion C with El?JJ, etc., and inspecting it, It can be used effectively for production control, as it can be used to judge whether the pressure of the famous press, 1 klf degree, is normal or not, and whether the adhesion is sufficient. Various contacts such as pressure, adhesion between the 6th article f4 and each layer, rice crackers, and the above protrusions C at this time
By observing the size of this protrusion C, we can immediately know the operating status of the front valley press device and the processing status of the product. , it is possible to reduce the defective rate and improve reliability. - On the other hand, place f1□I on the hole of the perforated elastic sheet 4''
Since the pressure saw is hardly applied to the object to be adhered, this part of the object remains unbonded, and therefore, as shown in Fig. How's the situation? Since the flat elastic body 7 does not damage the object to be adhered or give an opening,
In addition, it is heavy in order to absorb the irregularities of the object to be contacted and evenly pressurize it, but like the elastic body 3, the center part is thick and the shape is thicker. Furthermore, the same sheet as the perforated elastic sheet 1-/I may be used. (13. In the embodiment shown in FIG.
, L, the elastic sheet 4 is attached to the lower press 3'Ii plate 21-
Is it J for the reception, or is it the number 4a to take, or is it just 4a on the flat plate?
The object of the present invention can be sufficiently achieved by simply inserting the elastic body 31, 13 into the car's stomach as shown in FIG.
J. H. Roughly tighten the peripheral part of the elastic sheet 4 with a jig 9. However, in this case, O,
It is desirable that j9Lee-CiJ3<. Furthermore, it should be noted that the adhesive applied in advance to the contact side of the outer layer sheet 5 of the object to be adhered is not suitable for the heating process (it may generate reactive gas). I like it: J
For L<, Tonoy Type b, which is used without drying after application, is easy to handle and gives good results with 1j7.4. Furthermore, if the inner layer 446 of the material a3 is not used in the embodiment other than that shown in FIG. Of course, the thermal bonding press apparatus according to the present invention can be effectively used even when integrally bonding only two layers. (e) Effects of the present invention In addition to the above-mentioned configuration and operation, the present invention has the following effects. Due to the combined effect of the A0 elastic body 3 and the perforated elastic sheet 4, the inner layer material 6 of the adherend can be easily hermetically sealed with the outer layer sheet 5 of the adherend. That is, the elastic body 3 prevents the generation of large air bubbles, and the presence of the holes in the perforated elastic sheet 4 allows small air bubbles to be properly dispersed and arranged (as shown by b in FIG. 3), so that they hit the holes in the perforated elastic sheet 4. It is almost distinguishable from other normal bubbles (J shown as a in Figure 3) and is female, and its aesthetic appearance remains unchanged. B. By visually observing and inspecting the shape of the protrusion (indicated by C in Fig. 3) of the object to be welded located in the portion corresponding to the hole 4 in the holed elastic sheet 1, It is useful for production control, as it can be used to determine whether the pressure and the pox state are normal or not, and whether the adhesion state is sufficient. Furthermore, by selecting the shape and arrangement of the holes in the elastic sheet 4, the protrusions C can be used as a pattern.

[Brief explanation of the drawing]

1 to 4 are for explaining the thermal bonding press device according to the present invention, FIG. 1 is a schematic sectional view of the thermal bonding press device, and FIG. 2 is a state indicated by arrow A-A in FIG. 1. FIG. 4 is a sectional view showing another embodiment of the attachment part between the lower press flat plate, the elastic body, and the elastic sheet. Explanation of notes in the drawings 1; Upper press flat plate 2: Lower press flat plate 3; Elastic body 4; Elastic sheet with holes 5; Outer layer sheet of the adherend 6: Inner layer material of the adherend 7; Flat elastic body 8: Curing Tool 10: Escape allowance patent applicant Toshi Co., Ltd. Figure 2

Claims (1)

[Claims] The material to be laminated is placed in a thermal bonding press processing machine J3 that sandwiches the material between two flat plates and heats and presses them to integrate the material, and a layer is placed on at least one laminate holding surface of the flat plate from the center toward the periphery. 1. A thermal bonding press processing device comprising: an elastic body having a shape in which the thickness gradually decreases; and an elastic sheet having a plurality of holes provided on the elastic body.