阅读说明：本技术 一种聚氨酯自结皮的生产工艺 (A kind of production technology of polyurethane from skinning ) 是由 吴利省 王庆文 于 2019-08-29 设计创作，主要内容包括：一种聚氨酯自结皮的生产工艺,本发明涉及装饰件技术领域,将模具通过水循环的方式加热到40-65摄氏度；在模具内壁喷上开稀好的脱模剂；从注料孔进行注入调配好的原料；产品熟化后,先将废料取出并喷上脱模剂；打开模具；取出产品后,放置在冷却架上进行冷却固定并进行初检；冷却4个小时后,对产品进行修剪废边的工序；修剪后,放置定型架上进行后熟化并做好记录流程卡；后熟化时间达到后,进行最终的品检并做好记录；装箱入库并做好记录。其操作简单,且加工出的聚氨酯产品具有一定的缓冲性；当人碰撞时,会有防护的作用,更好的保护作业者的安全。(A kind of polyurethane is from the production technology of skinning, and the present invention relates to decoration technical fields, and mold is heated to 40-65 degrees Celsius in such a way that water recycles；Dilute good release agent is sprayed out in mould inner wall；It carries out injecting deployed raw material from material hole；After product curing, first waste material is taken out and sprays release agent；Open mold；After taking out product, it is placed on cooling frame and carries out cooling fixed and carry out initial survey；After cooling 4 hours, the process for trimming edge grinding is carried out to product；After trimming, places and carry out post curing on shaping rack and make a record traveler；After the post curing time reaches, carries out final product examine and make a record；Vanning is put in storage and makes a record.Its is easy to operate, and the polyurethane products processed have certain resiliency；When people's collision, the effect of protection is had, preferably protects the safety of operator.)

1. a kind of polyurethane is from the production technology of skinning, it is characterised in that: its operating procedure is as follows:

(1), mold is heated to 40-65 degrees Celsius in such a way that water recycles；

(2), dilute good release agent is sprayed out in mould inner wall；

(3), inject deployed raw material from material hole, raw material uses polyethers and isocyanates according to weight ratio for 100: The proportion of 30-55 mixes；

(4), after raw material injection, product curing is waited；

(5), after product curing, first waste material is taken out and sprays release agent；

(6), mold is opened；

(7), it after taking out product, is placed on cooling frame and carries out cooling fixed and carry out initial survey；

(8), after cooling 4 hours, the process for trimming edge grinding is carried out to product；

(9), it after trimming, places and carries out post curing on shaping rack and make a record traveler；

(10), it after the post curing time reaches, carries out final product examine and makes a record；

(11), vanning is put in storage and makes a record.

2. a kind of polyurethane according to claim 1 is from the production technology of skinning, it is characterised in that: the step (1) In preheating time be 2-3 hours.

3. a kind of polyurethane according to claim 1 is from the production technology of skinning, it is characterised in that: the step (7) Movement needs slowly when middle opening mold, and pays attention to that waste material is avoided to pull open product.

4. a kind of polyurethane according to claim 1 is from the production technology of skinning, it is characterised in that: the step (10) In the post curing time be 24-48 hours.

Technical field

The present invention relates to decoration technical fields, and in particular to a kind of production technology of polyurethane from skinning.

Background technique

Currently, most of ornamental component uses plastic products and roto casting system on agricultural machinery and engineering machinery It forms.

The texture of plastic products is harder, and in operation, people is easy injury when colliding component, can not play protection Effect.

The comparison of roto casting mold is expensive, compares and is suitble to large batch of production；And agricultural machinery and engineering machinery It is all the equipment of minority's type, will not be as there is so much amount on automobile, and a kind of cheap and feel is needed preferably to protect function The product of energy, for protecting agricultural machinery and engineering machinery.

Summary of the invention

In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of reasonable polyurethane of design to tie certainly The production technology of skin, it is easy to operate, and the polyurethane products processed have certain resiliency；When people's collision, have The safety of operator is preferably protected in the effect of protection.

In order to achieve the above objectives, present invention employs following technical proposals: its operating procedure is as follows:

1, mold is heated to 40-65 degrees Celsius in such a way that water recycles；

2, dilute good release agent is sprayed out in mould inner wall；

3, it carries out injecting deployed raw material from material hole, raw material uses polyethers and isocyanates according to weight ratio for 100:30- 55 proportion mixes；

4, after raw material injection, product curing is waited；

5, after product curing, first waste material is taken out and sprays release agent；

6, mold is opened；

7, it after taking out product, is placed on cooling frame and carries out cooling fixed and carry out initial survey；

8, after cooling 4 hours, the process for trimming edge grinding is carried out to product；

9, it after trimming, places and carries out post curing on shaping rack and make a record traveler；

10, it after the post curing time reaches, carries out final product examine and makes a record；

11, vanning is put in storage and makes a record.

Further, the preheating time in the step 1 is 2-3 hours.

Further, movement needs slowly when mold is opened in the step 7, and pays attention to that fertilizer is avoided to pull open production Product.

Further, the post curing time in the step 10 is 24-48 hours.

After above-mentioned technique, the beneficial effects of the present invention are: the present invention provides a kind of polyurethane from the production of skinning Technique, it is easy to operate, and the polyurethane products processed have certain resiliency；When people's collision, the work of protection is had With the better safety for protecting operator.

Specific embodiment:

Present embodiment adopts the following technical scheme that its operating procedure is as follows:

1, mold is heated to 60 degrees Celsius in such a way that water recycles, it is contemplated that 2-3 hours；

2, dilute good oil-based release agent is sprayed out in mould inner wall, waited 3 minutes；

3, required color is sprayed on mould inner wall, die surface is from patterned；

4, it carries out injecting deployed raw material from material hole, raw material uses polyethers and isocyanates according to weight ratio for 100:30- 55 proportion mixes；

5, after raw material injection.

6, it waits 20 minutes, product curing；

7, after product curing, first waste material is taken out and sprays release agent；

8, mold is opened, notices that waste material can pull open product.

9, it after taking out product, is placed on cooling frame and carries out cooling fixed and carry out initial survey；

10, after cooling 4 hours, the process for trimming edge grinding is carried out to product；

11, it after trimming, places and is carried out post curing 36 hours on shaping rack, and make a record traveler；

12, it after the post curing time reaches, carries out final product examine and makes a record；

13, vanning is put in storage and makes a record.

After above-mentioned technique, present embodiment is had the beneficial effect that:

1, the polyurethane products being processed into are formed according to specific mass ratio proportion using polyethers and isocyanates, has one Fixed flexibility increases the luxurious sense and comfort of product；

2, since polyurethane products have certain resilience, so that it preferably protects operator.