TW562727B - Process for centrifugally filling the blowing material in the pneumatic tire - Google Patents

Abstract

The casing for pneumatic tire is positioned in a shaft elongated from the center of the lower mold. Then, the liquid blowing agent is injected into the receiving room of the casing for pneumatic tire, and the lower mold is tightly covered by the upper mold. The shaft is subsequently driven into a rotating condition. When the blowing agent begins to react, the generated gas is diffused through an opening of the mold to the air, expelling by the centrifugal force. Therefore, the tire manufactured by the process of the invention has a better cushion effect and is perfect with no leaking of blowing material over the tire surface. Also, it is no need to form the conventional openings on the outer casings of tire for expelling the gas generated from the blowing reaction.

Description

562727 V. Explanation of the invention (1) '一 " ----- 《Overview of the Invention》 Ben :: The month is about a "foaming wheel centrifugal filling foam system II", M II, using a tire After the capacity setting is located in the lower mold of the mold and the liquid foam I 4 盍 2 upper fork is injected, the tire can be driven to rotate with the drive shaft 44 in the mold to achieve an excellent method of filling and foaming. No need to pre-streak any air holes, you can achieve natural exhaust work, uniform and dense foaming effect, improve tire cushioning, and ensure the beauty of the tire tread, reducing the use of conventional foam to seep out of the tread Hole rolling needs to be troubled by post processing, so that the whole has industrial practical value. "Background of the Invention" According to the 'P: ^', the development of a diverse society is the natural breeding of various types of sad vehicles, providing people at all levels, such as various types of children's cars, electric scooters or scooters. And according to the characteristics and needs of the vehicle driving, with the appropriate tire type. Therefore, a foam-filled tire (B) (as shown in the sixth figure) has been used in the market. It is directly injected into the inner accommodation chamber (41) of a general rubber tire (40) with PU or other liquid hair. The foam material (30) performs a foaming operation, so that the foamed material (30) expands and fills the accommodation chamber (41), and is combined with the rubber casing (40) into an integrated structure, and is foamed by the inside. The material (30) provides better cushioning and support effects for the tire (B) products, and at the same time can prevent the tire (B) from deflated by foreign body puncture and affect the safety of the vehicle's driving or operation; it is worth noting that the rubber Before the outer tire (40) is injected into the foamed material (30),

562727 V. Description of the invention (2) On the outer surface of the fetus (4 2), the method and method of driving the gas (1) dry stomata, so the stomata of (2) ooze out, and it will also be processed on the surface of the product. (3) Internally, it leads to reluctant installation and operation. Based on the above disadvantages and disadvantages of production costs, the research on the structure is located in the mold. The pores in the mold are excellently filled with pores, that is, the dense and flawless surface is properly placed at the foam material (3 0). The carcass is derived from the fact that each rubber needs to be wasted more than the foamed material, so that the shape of the carcass and carcass is beautiful, and if the production is added, if the foamed material is filled, traditional hair and appearance products will be described. Due to this, the effect of the lower mold and the injection part can be achieved with the effect of the transmission bubble, which can improve the setting cost. If the following plastic tires are housed in Foley, the foaming will remain as air holes on multiple working hours and the cost will be reduced. The uneven distribution of filling affects the filling quality of the wheel bubble or makes it very clear that it can be built into a liquid vehicle and driven by the driving method. The tire is slowly exhausted and the accommodating chamber (41) has many disadvantages: the carcass. Up and cost In the process of application, many pits overflow, improper and uniform trimming of the industry and tires, and the improvement of the performance of the tire manufacturing process and the use of shaped tires. The effect, the same punching effect, when the pores connected with the chamber (41) are expanded and foamed, they proceed smoothly; however, their foaming must be pre-stamped if the pores are made. The foam material that may pass through the rubber casing, if it does not penetrate and only affects the foam-filled tire, the relative increase in production can not be considered. It will make the gas stay in the carcass and become an invisible defect. The tyres produced have a lot of room for innovation in all aspects. For a long time, for various tires, it has been clear that after using the tire casing to cover the mold, the tire has a centrifugal force, and the tire does not need to be pre-stitched, and the filling and foaming effect is uniform. It can also ensure the beauty of the tire surface.

Page 5 562727 V. Description of the invention (3) Observation, to reduce the conventional foam from leaking out of the stomata of the tread, it is necessary to do the troubles caused by post processing, so that the whole can indeed meet the industrial applicability and practicality. The main reason is that the pressure of the tool is used to make the foam filling equipment beautiful and the purpose is to use the mold core to perform the spin. At the same time, the method of filling and reacting at the same time to achieve the purpose of the invention and the foam material to escape the hole Defects, in addition to saving the outside, and Darben foaming process can provide external liquid or impurities of the same degree and effectiveness. "", The foaming process of the present invention, by using the centrifugal force process of the mold, can ensure that the blowholes of the tires pass through the tire products, which is a secondary cause of the infiltration of the tires from the foam material, and can be used for the purpose of external tire injection. The moving shaft drives the forced gas from the tire of the foamed material. It has working hours, and also has the function of providing an internal transfer function. The foaming expansion and tilting type is better. The effect of avoiding foaming when the filling along the radius is better and the cushioning is better. This kind of foaming wheel off-axis design can also provide a solidification. The mold-free design can increase the foaming speed and the foaming wheel's centrifugal force material to rotate at a high speed to make the mold preset air uniform and dense without effect. The fetal heart force filling makes the mold not only hermetically closed, but also exposed to external dust. High opening and closing mold speed and high foaming molding. "Detailed description of the invention." For further understanding, the following constitutes the content of the present invention and

562727 V. Description of the invention (4) Figure ο State. ο Graph Graph chart. Also look at the side view and turn the rotation view of the outer section. Lili side view drawing of the side of the heart of the tire from the wheel of the wheel-shaped caster tire filling solid filling filling wheel filling before and after filling foam mold bubble filling > hair closed closed hair foaming发 发 发 发 用 S The early version of the textbook This textbook is designed to act for the sake of the system Department of the system Department of the system Department diagrams Diagram diagrams Diagram diagrams One two three four five six 》 (A) • • • • Tire (10) • • • • Mold (11) • • • • Upper mold (111) • • • Receiving ring groove (112) • • • Air hole (12) • • • • Lower die (121) • •• Receiving ring groove (122) • • • Drive shaft (20) • • • • Tire (21) • • • Receiving room (22) • • • • Inner diameter wall edge ( 30) • • • • Foam (B) • • • • Tire (40) • • • Outer tire (41) • • • • Storage chamber (42) • • • • Pores "Explanation of specific embodiments" Please Referring to the first figure, the present invention refers to a method using centrifugal force

Page 7 562727 V. Description of the invention (5) ~ The manufacturing process of foamed filled tires; its main equipment includes ... (1) mold (1 0): it is made of a detachable or tiltable upper mold (丨 丨) And the lower mold (1 2), wherein the upper and lower molds (丨 i) and (丨 2) are relatively recessed on the inner mold surface with a receiving ring groove (111), (1 2 1), so that the receiving ring The grooves (丨 丨 丨) and (121) can be used for accommodating a rubber casing (20) in an accommodation chamber (21), and the lower mold (1 2) accommodates the ring groove (1 2 1) from the center. A part of the shaft is protruded by a pivotable transmission shaft (1 2 2), and the outer diameter edge of the transmission shaft (1 2 2) is just for the inner diameter wall edge (2 2) of the outer tire (2 0). Click on the design. ° ... (2) Power source: it can be a drive motor and other transmission machinery, and can use the appropriate transmission elements of # 皮 τ or # 轮 special drive elements to drive the drive shaft (1 2 2) of the lower mold (12) at a better speed Be a spinner. The manufacturing process includes the following steps (please refer to the second and third figures for cooperation) ... (a) Prepare the mold (10): When preparing the mold (丨 0), the upper mold (11) and the lower mold (1 2) ) Separate or lift the upper die (11); '(b) Position the outer tire (2 0): properly fit the outer tire (20) on the drive shaft (1 2 2) of the lower die (丨);' (c ) Injecting foam material (30): Inject an appropriate amount of pu or other liquid foam material (30) prepared in advance into the inner housing (2) of the tire (20) for development; (d) Closure Upper mold (Π) ·············································· e · e (E) turned on the power source ·········································· ··· The shaft (122) must drive the outer tire (20) to rotate at an appropriate speed to move the liquid tire (30) during the foaming reaction process

562727 V. Description of the invention (6) The bubble reaction starts from 11 seconds after injection and ends after 40 seconds). It must rotate with the outer tire (20) and be subjected to centrifugal force to ensure that it is in the inner volume of the outer tire (20). The expansion chamber (2 1) expands and solidifies into a tightly fit and compact state, and presses the internal gas in the accommodation chamber (2 1) to escape to the outside through the air holes (1 1 2) provided by the upper mold (1 1); (f ) Close the power source, open the mold, and complete the foamed filled tire (A). After the scheduled foaming time has expired, 'close the power source, mold opening, and pick-up procedures in sequence to obtain a foamed filled tire (A). Products (as shown in the fourth and 'fifth pictures). Using the centrifugal method manufacturing process of the above-mentioned foamed filled tire (A), the tire (20) can be directly filled and foamed without the need to pass through a number of air holes. The process is performed in a confined space at the same time with centrifugal rotation, so it can ensure that the foaming process does not & external interference, and will not affect the overall foam molding time, more importantly, the foaming material is dense and dense, and the cushioning effect is uniform and flawless, and The phenomenon that the foam material leaks out of the pores of the tire product tread can reduce the trouble of post-processing and trimming and ensure the aesthetics of the tire (A). " Which is the distance between the upper surface of the upper mold (11) and the lower mold (12) at the top surface of the transmission shaft (122) is approximately 2 mm, and the upper mold (丨 丨) is opposite the top of the transmission shaft (1 2 2). At least one air hole (11 2) is engraved on the end surface of the convex portion of the surface to the outside of the upper die (11) for the gas to escape. It is noted from the above description that the present invention can achieve the following many effects: (1) The tire does not need to be vented: the invention uses the tire to inject a liquid foam material to perform the foaming reaction. At the same time, the tire is driven by the power source and the mold to drive the tire. g The internal foaming material rotates to generate centrifugal force, so that the expanded foaming material is the same.

Page 9 562727 V. Description of the invention (7) When the compressed gas escapes from the upper mold pores, the holes can save the pore processing and drawing work and pre-engraved the air on the outer tire (2) has a better cushioning effect and can Effectively reduce production costs. At the same time, the foaming reaction is also subject to centrifugal force = after the liquid foaming material of the present invention is foamed and solidified, it can be used with the outer volume w +, so the foaming material can be ensured to make the overall foaming material "closely fit the filling effect" , The liters of cushioning and absorption of tire products are flawless ... (3) It can be said that it has better aesthetics. 诘 小 吉 # The centrifugal foam filling process = processing trouble: the invention is beneficial to avoid the occurrence of customary hair. The fact that the foam material leaks from the pores can not only improve the aesthetics of the tire product, but also save the added life of processing and trimming. Provide the centrifugal force filling foaming process of the foaming wheel of the present invention. After foaming ^ °, the tire can be rotated inside the mold to generate a centrifugal force with the drive shaft driving to achieve the best method of filling and foaming. The side tire does not need to have any air holes in advance to achieve natural discharge. Qigong Lingli fills and sends 7 packs on the same day. The effect is even and dense. It can improve the cushioning of the tire1. It can also ensure the beauty of the tire surface and reduce the use of conventional foam to seep the tire lice. Disturbance, so the whole can meet the industrial reality = cost and profitability, and its structure has not been seen in books or publications, and is in line with the requirements of the invention patent application. For those who need to know, the above are the specific embodiments of the present invention and their operation. Page 10 562727 V. Description of the invention (8) The technical principles used, if the changes are made according to the concept of the present invention, the functions they produce When the effect does not exceed the spirit covered by the description and drawings, they should all be brought together within the scope of the present invention.

Claims (1)

562727 VI. Application for patent scope 1. A centrifugal force filling foaming process of a foaming wheel, which includes the following method steps: (a) Prepare a mold: prepare a mold that can separate the upper and lower molds, and There is an accommodation ring groove between the opposite mold surfaces for the tire to be accommodated, and a transmission shaft for the tire to be embedded and fixed is protruded at the center of the lower mold. The 4-moving shaft = driven by an appropriate power source, and the upper mold is previously Separated from the lower mold; (b) Positioning the outer tube: The inner diameter wall edge of the outer tube is appropriately embedded and positioned on the drive shaft of the lower mold; (c) Injecting liquid foam material: Injecting an appropriate amount of liquid foam material prepared in advance The foaming reaction operation is performed in the inner housing of the outer tire; (d) Closing the upper mold ... After the foam material is injected, the upper mold is closed immediately; (e) Turn on the power source: Turn on the power source such as the drive motor So that the lower mold drive shaft can drive the tire to rotate at a proper speed, so that the liquid foaming material can rotate with the tire and be subjected to centrifugal force during the foaming reaction process to ensure that it expands and solidifies in the inner chamber of the tire. Close Closed and compact state 'and pressurize the gas inside the accommodating chamber to escape from the air holes provided by the upper mold to the outside; (f) Close the power source, open the mold, and complete the foam-filled tire product: after the predetermined time of foaming expires, continue By executing the procedures of shutting down the power source, opening the mold, and picking up, a foamed filled tire product can be obtained. Using the centrifugal process of the foamed filled tire can not only ensure that the foaming of the foamed material is more dense, uniform, and flawless. In order to increase the cushioning effect of the tire, at the same time, it can save the man-hour of making the tire stomata, and avoid excessive foaming reaction. Page 12 562727 6. The scope of patent application is subject to external interference, which can prevent the occurrence of foaming materials from leaking out of the conventional tire surface, and achieve better tire aesthetics. 2. According to the foaming wheel centrifugal force f-type foaming process described in item 1 of the scope of the patent application, the upper mold and the lower mold can adopt a tilt-type structure to make the opening and closing operations more efficient. Easy and fast. 3. According to the filling foaming process described in item i of the patent application scope, wherein the foaming material is a centrifugal force type material. In order to fill foam or other plastic foams, according to the i-filled foaming process described in item i of the patent application scope, wherein the centrifugal force of the bubble wheel is formed by the upper mold and the lower mold, and a distance of about 2mm is formed between the upper mold and the lower mold. At least one air hole is engraved on the end surface of the top end surface of the shaft to the protruding end of the upper end surface of the upper mold. ° ’for gas to escape Page 13