TW524704B - Method for forming protective device - Google Patents

Abstract

A method for forming a protective device comprises: preparing a mold which is installed with an upper mold cavity on the upper mold thereof and a lower mold cavity on the lower mold thereof in which the upper mold cavity and the lower mold cavity can be aligned and connected with each other; heating the upper mold and the lower mold to a lower first temperature; mounting a plastic sheet having a predetermined shape and a foam into the mold; slowly closing the upper mold and the lower mold to each other in a predetermined period of time to gradually soften the plastic sheet and the foam; heating the closed mold to a second temperature which is higher than the first temperature to melt the surface layer of the plastic sheet and the foam; and reducing the temperature to a predetermined temperature in a closed-mold state to form by cooling the material inside the mold such that the plastic sheet and the foam can be integrally formed simultaneously without the aid of any adhesive interface.

Description

^ 24704

Refers to: Kinds ::] It is related to sports protection, more specifically <, especially the plastic plate and foam with surface and can be connected without using any adhesive medium, and can make the two Appearance at the same time integrated into one. Full strength 2 supplements = class sports are already very common sports, and athletes will all shape ;: go: ί: find 'example: materials, hockey or cricket, etc., the probability of competition ί is quite high, and players only rely on protective gear To maintain the self-contained plastic plate body, and then to the square dog m ~ ,, bean morning / month manufacturing system is the use of cloth car type plastic plate and foam, but it will make plastic plate body Used together with the foam body, the adhesive will need to take into account whether the adhesive will be coated evenly; and the degree of :: properties and life and many other subsequent characteristics; through I, i: will gradually soften Or melting 't after a long exposure; if it happens, it will cause serious flaws in quality ... And, for the coating and coating industry, the plastic plate must be formed first: Π = ceramic drying equipment and procedures, which is difficult to Achieving-times success = ^ In view of this, the inventor of this case has carefully considered and accumulated many years of research and development experience in holding protective gear, and finally has the invention of this invention., That is, the main purpose of this invention, It is a method for providing a protective gear. The plastic plate body and the foam body of the protective gear can be It is taken by any 524704

The surface can be fully fixed, and its fixed part has a very good bonding strength, so that the bonding strength between the two is quite good, and there will be no peeling between the interfaces. Compatibility and repellency cause the secondary purpose of the present invention to provide a person who can make the appearance of plastic plates and foams into one piece, so they can avoid the need to inject $ in advance to achieve economic benefits of shortening the manufacturing process . The purpose is to provide-the limitation of the closed mold cavity to block the foam. Another object of the present invention is to form a film layer on the outer surface of the seal after the mold is closed. In order to further understand the effect of the present invention, a better example is given to understand the above-mentioned objects, features, and details of the present invention. A conforming molding method, 'form the shape of a plastic plate while fixing each other, a forming method of a protective device,' a bad odor caused by the sweat absorption of the foam in the cavity ', and use of the technology and the expected cooperation The diagram is explained in detail as follows, I believe the characteristics of the dagger can be deepened from this

The comparison symbol of the figure: 1011111312112320 Mould Upper mould 6 Long groove Lower mould cavity Long convex strip Heating device 1111212122 Upper mould Upper curved surface Lower mold Lower curved surface

21 Heating tube

Page 5 524704 V. Description of the invention (3) 22 Hydraulic cylinder. 32 41 Foam convex strip 31 Plastic plate body 40 Protective device The forming method of the harness of the present invention includes the following steps as shown in the first and second figures: Take "factory step" (1) take a mold 10, which further includes There is an upper mold 11 and a lower mold 12, and the inner center of the two is provided with an upper mold cavity nl and a lower mold cavity 121 that can be docked to have a predetermined shape: Among which, the upper six liuzi 4 Shangzhen eight 111 has a concave The upper curved surface 1 1 2 is received, and the lower mold cavity 1 2 1 has a symmetrical curved and convex one downward curved surface 1 2 2, and a long groove is provided in the center of the upper curved surface 11 2 丨 丨3, and a long convex strip 丨 2 3 is symmetrically provided in the center of the downward curved surface 1 2 2, and the width of the long convex strip 1 2 3 is smaller than the long groove 11 3; in addition, the An upper hydraulic cylinder 22 is further provided at the center of the top of the upper mold 11. (2) The mold is heated from 10 to a predetermined temperature in advance, and a heating device 20 is provided on the top surface of the upper mold 丨 丨 and the bottom surface of the lower mold 12 respectively. There are a large number of heating tubes 21 for hot steam to enter for heating. In this embodiment, the preheating is performed to a first temperature of 80 to 135 ° C, and the upper mold 11 and the lower mold 12 are simultaneously heated. (3) Put one of the plastic plate body 31 and one foam body 32 into the mold 10 in a predetermined shape; please refer to the first and second figures. In this embodiment, a flat plate can be used. Of course, the The plastic plate body 31 can also use a shape having a predetermined curved arc surface after injection molding; also, in this embodiment, the foamed body 32 is first placed under the lower mold cavity 1 21 and the curved surface 1 2 2 The top 'then the plastic plate

Page 6 ^ 24704 V. Description of the invention (4) The body 3] is placed on the foamed body 32 to make two states; in addition, the material of the plastic plate body 31 can be superimposed on each other without foaming plate body The material of the foam body 32 is A, PE made of shock-resistant EVA or PE foam plate. & With the buffer or suction (4), the upper mold 11 and the lower mold 12 are slowly closed to each other for a period of time after the mold is closed. The operation of the docking is mainly the downward movement of the predetermined cylinder 22, and the upper and lower molds are slowly pulled 11 The oil on the top is in the upper mold =: =-a relatively low preheating temperature, and then cooperate with this step 2: hold for time, so that the plastic plate body 31 and the foam body 32 are under the u and temperature conditions. Bake and give :: making of π process. Japan], which is beneficial to the next system. The 5th Mo Ju 10 warms up to the second temperature; the second temperature * 3 ~ II: 22 ~ 20. . , The heating time is about and Bu Cai if depending on the thickness and characteristics of the actual material is a moderate choice; the condition of the dazzling fusion is mainly to make the plastic plate 31 and foam 32 shape ^ 2; the material of the contact site The molecules intersect with each other. The internal I t of 32 has the limitation of a closed mold cavity of 10. The heating causes the foam body 32 to generate an internal pressure toward the mold cavity to squeeze the melted foam body on the periphery. ~ Move to fill the entire mold cavity to form a complete and full non-agglomeration good: E: VJE plastic plate body 31 and foam body 32 with the addition of this embodiment ::, the combination strength of the two is equivalent Good; again,…, condition 'As long as the peripheral foam 3 2 and the plastic plate body page 7

It can effectively achieve the purpose of joining with each other and achieving a predetermined shape 31 to form a molten state. Compared with the first and w: the temperature of the branch is lowered to a predetermined third temperature, and the third temperature step is: iif, the temperature is lower, is about 20 ~ 40. ° ′ Cooling step A J: In the process, the steam in the heating tube 21 may be released, and then injected into the V port 7 to cool and shape the material in the mold.丄 罔 (Open the fork, take out the finished product of the protector 40; the finished product after the mold opening is as described in-and the plastic plate body 31 and the foam body 32 have been fully combined, and have the appearance of several complete tools.

Each step and technique of the protective method and the plastic plate forming method of the second special ft invention: the outline of the points; then, the effect expected of the present invention is stated, and the technical hand 32 of the present invention is mainly used to form a molten state. The natural physical properties of the plastic plate body 31 and the foam body 32 which are mutually compatible with each other have relatively good non-bonding strength and no interface occurs, so the finished product has a lot of fixation and weather resistance, and effectively improves the excellent quality. The present invention simultaneously utilizes and completes the upper mold 11 and the lower mold 12 at the same time by first heating the temperature at the same time, then cooperating with this step to slowly lean the rubber plate body 31 and the foam body 32 in a specific baking, and gradually soften them. The segment “makes the plastic molecules 31 and the material molecules of the foaming contact parts reach phase” and uses the often good compatibility made of EVA and PE, so the repulsion between the two causes the phenomenon of peeling and use Another technical means that the life span is much longer than conventional, is to keep the heat and keep it in a relatively low pre-connection process and time, so that the shape of the material in the plastic interval, time and temperature state is first shaped, and

Page 8 524704 V. Description of the invention (6) --- Can reduce the incidence of bad rate. The present invention is based on the limitation of the closed cavity after the mold is closed, so that the internal air of the foam body 32 in the cavity is expanded, and the internal pressure squeezes the molten foam body 32 at the periphery to flow into the cavity of the cavity. Fill the entire cavity, in addition to forming a full and complete structure; and shape the appearance, pattern and pattern of the plastic plate body 31 and the foam body 32 at one time; for example, the upper cavity 丨 丨 丨 has a predetermined number of bars Slot 113, and the lower mold cavity 121 is provided with symmetrical long convex strips 1 2 3, so that a predetermined number of convex strips 41 are formed on the outer side of the plastic plate 31 of the finished protector 40, and the foam 32 A designer with a groove on the opposite side will be formed. Stomach λ In addition, the present invention limits the closed mold cavity after the mold 10 is closed, so that a higher density protective film 屛 is formed on the outer surface of the foam in the mold cavity, so as to prevent the foam from absorbing sweat and producing odor. phenomenon. In summary, the present invention has very good progress and usability in similar products. At the same time, it has not been found that the same technical means existed in literature S in domestic and foreign technical data on such structures. That is, 'The present invention has the elements of an invention patent, and applied in accordance with the law. However, the above are only one of the best and feasible implementations of the present invention. Therefore, any structural changes made by applying the description of the present invention and the scope of patent application should be included in the patent scope of the present invention. ,Xi

524704 Brief description of the drawings The first diagram is a perspective view of the protective gear of the present invention. The second figure is a schematic diagram of the operation of placing a plastic plate and a foam in the mold of the present invention. The third diagram is a schematic diagram of the action of the upper mold and the lower mold of the present invention slowly abutting each other. The fourth figure is a schematic diagram of the heating operation after the mold is closed according to the present invention. The fifth figure is a cross-sectional view of the protective gear of the present invention. The sixth figure is a partially cutaway perspective view of the protective gear of the present invention.

Page ίο

Claims (1)

524704 Case No. 90130601_Year_Month_Amendment VI. Those who apply for a foam board made of patents. Page 12