阅读说明：本技术 一种多层结构的pvc球的制作方法 (Manufacturing method of PVC ball with multilayer structure ) 是由 施少锋 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种多层结构的PVC球的制作方法,通过在模具的充气嘴结构处或者球体任意位置设置有二次注料的结构设计,在模具第一次外层球皮液体浆料注入模具加温成型的中途打开模具上设计好的二次注料口,把内层球皮的液体浆料再次注入模具内二次成型,让外层球皮与内层球皮融合一体,以实现双层PVC球的功能性。(The invention discloses a method for manufacturing a PVC ball with a multilayer structure, which is characterized in that a structural design of secondary material injection is arranged at an inflating nozzle structure of a mold or at any position of a ball body, a designed secondary material injection port on the mold is opened in the middle of the first time of injecting liquid slurry of an outer layer ball skin into the mold for heating and molding, the liquid slurry of an inner layer ball skin is injected into the mold again for secondary molding, and the outer layer ball skin and the inner layer ball skin are fused into a whole, so that the functionality of a double-layer PVC ball is realized.)

1. A manufacturing method of a PVC ball with a multilayer structure is characterized by comprising the following steps:

the method comprises the following steps: preparing slurry of an outer layer ball skin which is soft and comfortable in touch feeling, wherein the formula of the slurry of the outer layer ball skin is as follows: 40-50% of PVC resin, 40-65% of plasticizer, 2-5% of auxiliary agent and coloring pigment;

step two: preparing inner layer ball skin slurry with high strength and strong support property, wherein the formula of the inner layer ball skin slurry is as follows: 45-60 percent of PVC resin, 40-50 percent of plasticizer, 2-4 percent of auxiliary agent and coloring pigment;

step three: injecting the proportioned outer-layer ball skin slurry into a vinyl or rotational molding mould, covering a mould locking screw, pushing the mould into a vinyl or rotational molding heating furnace body, heating and plasticizing in the furnace body for 2-8 minutes, pulling the mould out of the furnace body, injecting the inner-layer ball skin slurry again from a secondary feeding position of the mould by using a slurry conveying gun for external use, tightly covering and sealing a secondary injection position, pushing the mould into the heating furnace body again, and heating for 5-10 minutes to plasticize and mold the slurry in the mould;

step four: and (3) pulling the mold out of the heating furnace body, putting the mold into water for cooling, then loosening the bolts to open the mold, taking out the ball body, and inflating and shaping.

2. The method for manufacturing a PVC ball with a multilayer structure according to claim 1, characterized by comprising the following steps:

the method comprises the following steps: preparing slurry of an outer layer ball skin which is soft and comfortable in touch feeling, wherein the formula of the slurry of the outer layer ball skin is as follows: 45% of PVC resin, 50% of plasticizer, 3% of auxiliary agent and coloring pigment;

step two: preparing inner layer ball skin slurry with high strength and strong support property, wherein the formula of the inner layer ball skin slurry is as follows: 45 percent of PVC resin, 45 percent of plasticizer, 3 percent of auxiliary agent and coloring pigment;

step three: injecting the proportioned outer layer ball skin slurry into a vinyl or rotational molding mould and covering a mould locking screw, pushing the mould into a vinyl or rotational molding heating furnace body, heating and plasticizing in the furnace body for 4 minutes, pulling the mould out of the furnace body, injecting the inner layer ball skin slurry again from a secondary feeding position of the mould by using a slurry conveying gun for external use, tightly covering and sealing a secondary injection position, pushing the mould into the heating furnace body again, and heating for 7 minutes to plasticize and mold the slurry in the mould;

step four: and (3) pulling the mold out of the heating furnace body, putting the mold into water for cooling, then loosening the bolts to open the mold, taking out the ball body, and inflating and shaping.

3. A method for manufacturing PVC ball of multilayer structure according to claim 1 or 2, characterized in that: the PVC ball has at least two layers.

Technical Field

The invention relates to the technical field of PVC balls, in particular to a manufacturing method of a PVC ball with a multilayer structure.

Background

PVC balls manufactured by slush molding and rotational molding processes in the current market are all of a single-layer structure, and the process for processing the PVC balls with a multi-layer structure is complex and has high cost, so that the problem of solving the same is particularly important.

Disclosure of Invention

Aiming at the problems, the invention provides a manufacturing method of a PVC ball with a multilayer structure, which is characterized in that a structural design of secondary material injection is arranged at an inflating nozzle structure of a mould or at any position of a ball body, a secondary material injection port designed on the mould is opened in the middle of the first time of injecting liquid slurry of an outer layer ball skin into the mould for heating and forming, the liquid slurry of an inner layer ball skin is injected into the mould again for secondary forming, and the outer layer ball skin and the inner layer ball skin are fused into a whole, so that the functionality of a double-layer PVC ball is realized.

In order to realize the technical scheme, the invention provides a method for manufacturing a PVC ball with a multilayer structure, which comprises the following steps:

the method comprises the following steps: preparing slurry of an outer layer ball skin which is soft and comfortable in touch feeling, wherein the formula of the slurry of the outer layer ball skin is as follows: 40-50% of PVC resin, 40-65% of plasticizer, 2-5% of auxiliary agent and coloring pigment;

step two: preparing inner layer ball skin slurry with high strength and strong support property, wherein the formula of the inner layer ball skin slurry is as follows: 45-60 percent of PVC resin, 40-50 percent of plasticizer, 2-4 percent of auxiliary agent and coloring pigment;

step three: injecting the proportioned outer-layer ball skin slurry into a vinyl or rotational molding mould, covering a mould locking screw, pushing the mould into a vinyl or rotational molding heating furnace body, heating and plasticizing in the furnace body for 2-8 minutes, pulling the mould out of the furnace body, injecting the inner-layer ball skin slurry again from a secondary feeding position of the mould by using a slurry conveying gun for external use, tightly covering and sealing a secondary injection position, pushing the mould into the heating furnace body again, and heating for 5-10 minutes to plasticize and mold the slurry in the mould;

step four: and (3) pulling the mold out of the heating furnace body, putting the mold into water for cooling, then loosening the bolts to open the mold, taking out the ball body, and inflating and shaping.

The improvement is that the method comprises the following steps:

the method comprises the following steps: preparing slurry of an outer layer ball skin which is soft and comfortable in touch feeling, wherein the formula of the slurry of the outer layer ball skin is as follows: 45% of PVC resin, 50% of plasticizer, 3% of auxiliary agent and coloring pigment;

step two: preparing inner layer ball skin slurry with high strength and strong support property, wherein the formula of the inner layer ball skin slurry is as follows: 45 percent of PVC resin, 45 percent of plasticizer, 3 percent of auxiliary agent and coloring pigment;

step three: injecting the proportioned outer layer ball skin slurry into a vinyl or rotational molding mould and covering a mould locking screw, pushing the mould into a vinyl or rotational molding heating furnace body, heating and plasticizing in the furnace body for 4 minutes, pulling the mould out of the furnace body, injecting the inner layer ball skin slurry again from a secondary feeding position of the mould by using a slurry conveying gun for external use, tightly covering and sealing a secondary injection position, pushing the mould into the heating furnace body again, and heating for 7 minutes to plasticize and mold the slurry in the mould;

step four: and (3) pulling the mold out of the heating furnace body, putting the mold into water for cooling, then loosening the bolts to open the mold, taking out the ball body, and inflating and shaping.

The further improvement lies in that: the PVC ball has at least two layers.

The invention has the beneficial effects that:

1. with intensity height, the strong PVC formula material of support is as inlayer ball skin, and outer ball skin then uses the softness, the comfortable PVC formula material of sense of touch, structural design through the charging connector structure department at the mould or spheroid optional position is provided with the secondary and annotates the material, at the mould first outer ball skin liquid thick liquids pour into mould heating shaping open the secondary sprue mouth that designs on the mould midway, pour into the liquid thick liquids of inlayer ball skin into the mould secondary again in, let outer ball skin and inlayer ball skin fuse integratively, in order to realize the functionality of double-deck PVC ball, the spheroid surface still possesses the softness when having realized the spheroid and having possessed good holding power like this, comfortable excellent sense of touch.

2. The invention uses the foaming formula material with the explosion-proof function as the inner layer ball skin, the outer layer ball skin uses the material without foaming and smooth surface, the designed secondary injection port is opened midway when the liquid slurry of the outer layer ball skin is injected into the mould for the first time of the mould for heating and forming, the liquid slurry of the inner layer ball skin is injected into the mould again for secondary forming, and the outer layer ball skin and the inner layer ball skin are integrated, thus solving the problem that the prior ball with the smooth surface of the ball skin has no explosion-proof function and the surface bubble is very easy to be dirty due to foaming.

Drawings

FIG. 1 is a block diagram of the present invention.

Detailed Description

In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.