CN112239597A - Flexible noise reduction pad for dice shaking device of automatic mahjong table - Google Patents
Flexible noise reduction pad for dice shaking device of automatic mahjong table Download PDFInfo
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- CN112239597A CN112239597A CN201910653977.6A CN201910653977A CN112239597A CN 112239597 A CN112239597 A CN 112239597A CN 201910653977 A CN201910653977 A CN 201910653977A CN 112239597 A CN112239597 A CN 112239597A
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- polyurethane
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F9/00—Games not otherwise provided for
- A63F9/20—Dominoes or like games; Mah-Jongg games
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F9/00—Games not otherwise provided for
- A63F9/20—Dominoes or like games; Mah-Jongg games
- A63F2009/205—Mah-jongg games
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The invention relates to the technical field of polymer material processing and manufacturing, and aims to provide a flexible noise reduction pad for a dice shaking device of an automatic mahjong table, which has the technical scheme that: the polyurethane adhesive comprises, by weight, 90-120 parts of polyurethane, 6-10 parts of a curing agent, 2-4 parts of a softening agent, 0.7-1.2 parts of a lubricating agent, 3-5 parts of a flow aid, 10-15 parts of chlorinated polyethylene, 0.3-0.7 part of a mineral oil defoaming agent, 0.9-1.8 parts of transparent reinforcing fibers and 2-4 parts of an antioxidant, wherein the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1 (1.5-2.2), the curing agent is any one of HJ-1885-1 type two-component polyurethane curing agent, HJ-1582-2 type two-component polyurethane curing agent, HJ-1590-2 type two-component polyurethane curing agent and HJ-3157 type two-component polyurethane curing agent, and the softening agent is at least one of dimethyl phthalate and diethyl phthalate. The flexible noise reduction pad has the advantages of transparency, softness, high tensile strength and better sound absorption and noise reduction performance.
Description
Technical Field
The invention relates to the technical field of processing and manufacturing of high polymer materials, in particular to a flexible noise reduction pad for a dice shaking device of an automatic mahjong table.
Background
The mahjong is a traditional entertainment tool in China and is popular with people. With the development of technology and the increasing requirements of people on mahjong playability, automatic mahjong tables capable of automatically shuffling are widely used. When automatic mahjong table carries out mahjong game, need put into special device with the dice and carry out the number of points and shake the throw, when the dice is in the in-process of shaking the throw, the dice can constantly bump with carousel upper surface and dustcoat inside wall to lead to the dice to shake the in-process and send great sound, and then cause the influence to people around, consequently need cushion and weaken the collision of dice and carousel surface, in order to reach the probability that the reduction noise takes place.
Chinese patent No. CN202637937U discloses a dice shaking device for an automatic mahjong table, which comprises an operation panel and a base plate connected with the operation panel, wherein the upper surface of the base plate is recessed downwards to form a cavity, a turntable is mounted at the bottom end of the cavity, dice is supported on the upper surface of the turntable, and the bottom end of the turntable is connected with a motor for driving the turntable to rotate. An operation panel is arranged at an opening of the cavity of the base plate, an outer cover is arranged on the periphery of the operation panel, a control circuit board is installed at the bottom of the operation panel, a hollow hole for observing dice is hollowed in the middle of the operation panel, and a lens is arranged on the hollow hole.
Although this kind of prior art scheme can rotate the slotted hole carousel that is more convenient than the price and shake the dice, the dice still will take place the striking with carousel upper surface, dustcoat inside wall in the in-service use process to produce great sound, if set up the transparent flexible pad of one deck at carousel surface and dustcoat inside wall, under the prerequisite that does not influence the dice process of shaking the throw, can effectively weaken the striking of dice and carousel surface and dustcoat inside wall, thereby play the effect of effectively making an uproar. Therefore, the flexible noise reduction pad for the dice shaking device of the automatic mahjong table is developed, and has a wide market and application prospect.
SUMMARY OF THE PATENT FOR INVENTION
The invention aims to provide a flexible noise reduction pad for a dice shaking device of an automatic mahjong table, which has the advantages of transparency, softness, high tensile strength and better sound absorption and noise reduction performance.
The technical purpose of the invention is realized by the following technical scheme:
a flexible noise reduction pad for a dice shaking device of an automatic mahjong table comprises the following components in parts by weight:
90-120 parts of polyurethane, 6-10 parts of a curing agent, 2-4 parts of a softening agent, 0.7-1.2 parts of a lubricating agent and 3-5 parts of a flow aid.
Through adopting above-mentioned technical scheme, the polyurethane molecule contains strong polar group, polyether, the flexible chain segment of polyester, makes polyurethane have higher mechanical strength and anti-oxidant stability, has excellent flexibility and resilience concurrently, can improve the flexibility of elasticity of the flexible pad of making an uproar that falls to reach the effect that effectively reduces the dice and shake the noise that dice device inner rotating disc surface and dustcoat inner wall collision sent.
The curing agent can effectively shorten the polyurethane solidification time, adjust the polyurethane solidification hardness, and improve the polyurethane solidification uniformity, thereby increasing the elasticity and strength of the flexible noise reduction pad after molding.
The softener has good softening effect and good compatibility with polyurethane, improves the film forming property, adhesive force and waterproof property of the polyurethane, can promote the fluidity of a blending system, increases the softness and elasticity of the blending system after solidification, and has the function of adjusting the hardness of the polyurethane after molding in cooperation with a curing agent.
The lubricant can reduce the intermolecular internal friction in the blending system, thereby improving the fluidity of each component in the blending system and further being beneficial to improving the mixing uniformity of each component in the blending system.
The flow assistant can further increase the fluidity of the blending system, thereby further improving the intermiscibility of the polyurethane and each component, and being beneficial to the uniformity and the stability of the reaction process.
Further, the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1 (1.5-2.2).
By adopting the technical scheme, the polyester polyurethane has better tensile property, flexibility and wear resistance, can improve the tensile strength and flexibility of the formed flexible noise reduction pad, and can improve the wear resistance of the flexible noise reduction pad; the polyether polyurethane has higher strength and good rebound resilience, so that the rebound resilience of the flexible wear-resistant pad can be improved, the impact strength of dice is effectively relieved, and the noise reduction effect is achieved.
Further, the curing agent is any one of an HJ-1885-1 type two-component polyurethane curing agent, an HJ-1582-2 type two-component polyurethane curing agent, an HJ-1590-2 type two-component polyurethane curing agent and an HJ-3157 type two-component polyurethane curing agent.
By adopting the technical scheme, the compatibility of the two-component polyurethane curing agent and polyurethane is good, the polar groups in the curing agent and the groups in polyurethane molecules are subjected to a crosslinking effect, the polyurethane solidification speed and the solidification effect are improved, and meanwhile, the two-component polyurethane curing agent and a softening agent can be cooperated to play a role in adjusting the solidification hardness of a polyurethane matrix.
Further, the softener is at least one of dimethyl phthalate and diethyl phthalate.
By adopting the technical scheme, the dimethyl phthalate has strong dissolving power, has lubricating and softening functions, can be well dissolved with polyurethane, improves the film forming property, adhesive force and waterproof property of the polyurethane, can promote the fluidity of a blending system, and increases the softness of the system after solidification, so that the flexible noise reduction pad has better hand feeling, and meanwhile, dice and the flexible noise reduction pad are elastically collided but not rigidly collided, thereby effectively improving the mute effect of the dice toss; diethyl phthalate and polyurethane can be well dissolved mutually, and the hardness of the solidified blending system can be adjusted while the polyurethane is softened, so that the anti-aging degree of the flexible noise reduction pad is improved, and the service life of the flexible noise reduction pad is prolonged.
Furthermore, the flexible noise reduction pad for the dice shaking device of the automatic mahjong table further comprises 10-15 parts of chlorinated polyethylene.
By adopting the technical scheme, the chlorinated polyethylene is a saturated high polymer material, is non-toxic and tasteless, has excellent weather resistance and aging resistance, and has good toughness, and the chlorinated polyethylene has good compatibility with other high polymer materials, so that the flexibility of the flexible noise reduction pad can be further improved by adding the chlorinated polyethylene.
Further, the flexible noise reduction pad for the dice shaking device of the automatic mahjong table further comprises 0.3-0.7 part of defoaming agent, and the defoaming agent is preferably a mineral oil defoaming agent.
By adopting the technical scheme, when the polyurethane is blended with auxiliaries such as a curing agent and the like, a plurality of small bubbles can be generated in a blending system, and the small bubbles can easily influence the mixing uniformity and interaction among the components, so that the elasticity of the polyurethane after solidification and forming is reduced. The mineral oil defoaming agent has good diffusivity and permeability, can effectively inhibit the generation of foam in a system with poor fluidity, forms a synergistic effect with a binder, increases the overall shock absorption capacity, improves the toughness of polyurethane, and increases the hand feeling of the dice.
Further, the flexible noise reduction pad for the dice shaking device of the automatic mahjong table further comprises 0.9-1.8 parts of transparent reinforcing fibers, and the transparent reinforcing fibers are at least one of polymethyl methacrylate fibers and glass fibers.
By adopting the technical scheme, the polymethyl methacrylate fiber and the glass fiber have certain transparency, can react with the polyurethane and the groups in the blending system, and are condensed in the polyurethane matrix together, so that a multi-fiber three-dimensional net structure is formed, and the structural strength and the impact strength in the polyurethane matrix are effectively improved. Meanwhile, the multi-fiber three-dimensional net structure can effectively absorb noise emitted by dice impact, so that the effects of absorbing sound and reducing noise and improving the dice silencing effect are achieved.
Furthermore, the flexible noise reduction pad for the dice shaking device of the automatic mahjong table further comprises 2-4 parts of antioxidant.
By adopting the technical scheme, the antioxidant can effectively reduce the speed of the flexible noise reduction pad subjected to oxidative degradation, so that the anti-aging performance of the flexible noise reduction pad is improved, and the service life of the flexible noise reduction pad is prolonged.
In conclusion, the invention has the following beneficial effects:
1. according to the invention, polyurethane is used as a base material, and a curing agent, a softening agent, a lubricant and a flow aid are added, so that the mechanical strength and the wear resistance of the formed flexible noise reduction pad are increased, and meanwhile, the flexible noise reduction pad is endowed with excellent flexibility and resilience, so that the rigidity of the flexible noise reduction pad during collision is effectively reduced, and the purpose of improving the dice silencing effect is achieved;
2. according to the invention, the reinforcing fibers are added into the polyurethane matrix, so that the reinforcing fibers and the polyurethane matrix are bonded, and the structural strength and the impact strength inside the polyurethane matrix can be improved; on the other hand, the reinforcing fibers form a multi-fiber three-dimensional net structure in the polyurethane matrix, so that noise generated by dice collision can be effectively absorbed, and the effects of effectively reducing noise and absorbing sound are achieved;
3. according to the invention, chlorinated polyethylene is added into the polyurethane matrix, and the characteristics of excellent weather resistance, ageing resistance and good toughness of the chlorinated polyethylene and good compatibility of the chlorinated polyethylene and other high polymer materials are utilized, so that the effect of further improving the flexibility of the flexible noise reduction pad is achieved, and the silencing effect in the dice rolling process is further improved.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
Example (b):
example 1: a flexible noise reduction pad for a dice shaking device of an automatic mahjong table comprises the following components in parts by weight: 90 parts of polyurethane, 6 parts of curing agent, 2 parts of softener, 0.7 part of lubricant, 3 parts of flow aid, 10 parts of chlorinated polyethylene, 0.3 part of mineral oil defoamer, 0.9 part of transparent reinforcing fiber and 2 parts of antioxidant, wherein the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1: 1.5.
Example 2: a flexible noise reduction pad for a dice shaking device of an automatic mahjong table comprises the following components in parts by weight: 100 parts of polyurethane, 7 parts of curing agent, 2.5 parts of softener, 0.8 part of lubricant, 3.5 parts of flow aid, 11 parts of chlorinated polyethylene, 0.4 part of mineral oil defoamer, 1.2 parts of transparent reinforcing fiber and 2.5 parts of antioxidant, wherein the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1: 1.7.
Example 3: a flexible noise reduction pad for a dice shaking device of an automatic mahjong table comprises the following components in parts by weight: 110 parts of polyurethane, 8 parts of curing agent, 3 parts of softener, 0.9 part of lubricant, 4 parts of flow assistant, 12 parts of chlorinated polyethylene, 0.5 part of mineral oil defoamer, 1.4 parts of transparent reinforcing fiber and 3 parts of antioxidant, wherein the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1: 1.9.
Example 4: a flexible noise reduction pad for a dice shaking device of an automatic mahjong table comprises the following components in parts by weight: 115 parts of polyurethane, 9 parts of curing agent, 3.5 parts of softener, 1.0 part of lubricant, 4.5 parts of flow aid, 13 parts of chlorinated polyethylene, 0.6 part of mineral oil defoamer, 1.6 parts of transparent reinforcing fiber and 3.5 parts of antioxidant, wherein the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1: 2.2.
Example 5: a flexible noise reduction pad for a dice shaking device of an automatic mahjong table comprises the following components in parts by weight: 120 parts of polyurethane, 10 parts of curing agent, 4 parts of softener, 1.2 parts of lubricant, 5 parts of flow aid, 15 parts of chlorinated polyethylene, 0.7 part of mineral oil defoamer, 1.8 parts of transparent reinforcing fiber and 4 parts of antioxidant, wherein the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1: 2.2.
Example 6: a flexible noise reduction pad for a dice shaking device of an automatic mahjong table comprises the following components in parts by weight: 90 parts of polyurethane, 6 parts of curing agent, 2 parts of softener, 0.7 part of lubricant, 3 parts of flow aid, 10 parts of chlorinated polyethylene, 0.3 part of mineral oil defoamer, 0.9 part of transparent reinforcing fiber and 2 parts of antioxidant, wherein the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1: 1.7.
Example 7: a flexible noise reduction pad for a dice shaking device of an automatic mahjong table comprises the following components in parts by weight: 100 parts of polyurethane, 7 parts of curing agent, 2.5 parts of softener, 0.8 part of lubricant, 3.5 parts of flow aid, 11 parts of chlorinated polyethylene, 0.4 part of mineral oil defoamer, 1.2 parts of transparent reinforcing fiber and 2.5 parts of antioxidant, wherein the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1: 1.9.
Example 8: a flexible noise reduction pad for a dice shaking device of an automatic mahjong table comprises the following components in parts by weight: 110 parts of polyurethane, 8 parts of curing agent, 3 parts of softener, 0.9 part of lubricant, 4 parts of flow assistant, 12 parts of chlorinated polyethylene, 0.5 part of mineral oil defoamer, 1.4 parts of transparent reinforcing fiber and 3 parts of antioxidant, wherein the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1: 2.2.
Example 9: a flexible noise reduction pad for a dice shaking device of an automatic mahjong table comprises the following components in parts by weight: 115 parts of polyurethane, 9 parts of curing agent, 3.5 parts of softener, 1.0 part of lubricant, 4.5 parts of flow aid, 13 parts of chlorinated polyethylene, 0.6 part of mineral oil defoamer, 1.6 parts of transparent reinforcing fiber and 3.5 parts of antioxidant, wherein the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1: 1.5.
Example 10: a flexible noise reduction pad for a dice shaking device of an automatic mahjong table comprises the following components in parts by weight: 120 parts of polyurethane, 10 parts of curing agent, 4 parts of softener, 1.2 parts of lubricant, 5 parts of flow aid, 15 parts of chlorinated polyethylene, 0.7 part of mineral oil defoamer, 1.8 parts of transparent reinforcing fiber and 4 parts of antioxidant, wherein the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1: 1.5.
The present embodiment is only for explaining the patent of the present invention, and it is not limited to the patent of the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as required after reading the present specification, but all are protected by the patent law within the scope of the claims of the present patent.
Claims (8)
1. The utility model provides a flexible pad of making an uproar falls that is used for automatic mahjong table to shake dice device which characterized in that: the composition comprises the following components in parts by weight:
90-120 parts of polyurethane, 6-10 parts of a curing agent, 2-4 parts of a softening agent, 0.7-1.2 parts of a lubricating agent and 3-5 parts of a flow aid.
2. A flexible noise-reducing mat for a dice shaking apparatus of an automatic mahjong table according to claim 1, wherein: the polyurethane comprises polyester polyurethane and polyether polyurethane in a mass ratio of 1 (1.5-2.2).
3. A flexible noise-reducing mat for a dice shaking apparatus of an automatic mahjong table according to claim 1, wherein: the curing agent is any one of HJ-1885-1 type two-component polyurethane curing agents, HJ-1582-2 type two-component polyurethane curing agents, HJ-1590-2 type two-component polyurethane curing agents and HJ-3157 type two-component polyurethane curing agents.
4. A flexible noise-reducing mat for a dice shaking apparatus of an automatic mahjong table according to claim 1, wherein: the softener is at least one of dimethyl phthalate and diethyl phthalate.
5. The flexible noise reduction mat for a dice shaking apparatus of an automatic mahjong table according to claim 4, wherein: the flexible noise reduction pad for the dice shaking device of the automatic mahjong table further comprises 10-15 parts of chlorinated polyethylene.
6. A flexible noise-reducing mat for a dice shaking apparatus of an automatic mahjong table according to claim 5, wherein: the flexible noise reduction pad for the dice shaking device of the automatic mahjong table further comprises 0.3-0.7 part of defoaming agent, and the defoaming agent is preferably a mineral oil defoaming agent.
7. The flexible noise reduction mat for a dice shaking apparatus of an automatic mahjong table according to claim 6, wherein: the flexible noise reduction pad for the dice shaking device of the automatic mahjong table further comprises 0.9-1.8 parts of transparent reinforcing fibers, and the transparent reinforcing fibers are at least one of polymethyl methacrylate fibers and glass fibers.
8. The flexible noise reduction mat for a dice shaking apparatus of an automatic mahjong table according to claim 7, wherein: the flexible noise reduction pad for the dice shaking device of the automatic mahjong table further comprises 2-4 parts of antioxidant.
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| CN201910653977.6A CN112239597A (en) | 2019-07-19 | 2019-07-19 | Flexible noise reduction pad for dice shaking device of automatic mahjong table |
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| CN201910653977.6A CN112239597A (en) | 2019-07-19 | 2019-07-19 | Flexible noise reduction pad for dice shaking device of automatic mahjong table |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113214769A (en) * | 2021-05-21 | 2021-08-06 | 武汉市科达云石护理材料有限公司 | High-thixotropy high-strength jade glue |
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| CN113214769A (en) * | 2021-05-21 | 2021-08-06 | 武汉市科达云石护理材料有限公司 | High-thixotropy high-strength jade glue |
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Application publication date: 20210119 |
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| RJ01 | Rejection of invention patent application after publication |