Thermal shrinkage film forming device
A molding device, heat shrinkable film technology, applied in flat products, household appliances, other household appliances, etc., can solve problems such as affecting the quality of cast pieces, and achieve the effects of reducing human participation, reducing costs, and minimizing costs
Pending Publication Date: 2017-10-24
贵州亿博科技有限公司
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The present invention intends to provide a heat-shrinkable film forming device to solve the problem in the prior art that excess melt sticks to the side wall of the casting roll and affects the quality of the casting during the casting process.
Method used
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Embodiment Construction
[0018] The present invention will be described in further detail below by means of specific embodiments:
[0019] The reference signs in the accompanying drawings include: die head 1, first casting roll 2, second casting roll 3, guide roll 4, conveying roll 5, pressure roll 6, nozzle 7, waist 31, wings 32, Air intake hole 33 .
[0020] The embodiment is basically as figure 1 Shown:
[0021] The heat-shrinkable film forming device includes a die head 1, a casting roll, a guide roll 4, a conveying roll 5 and a pressing roll 6, and the casting roll includes a first casting roll 2 and a second casting roll 3, and the first casting roll includes a casting roll 2 and a second casting roll 3. A casting roll 2, a second casting roll 3 and a guide roll 4 are arranged side by side in parallel successively, the first casting roll 2 and the second casting roll 3 rotate in opposite directions, and the guide roll 4 and the second casting roll 3 Reverse rotation, the first casting roll 2 ...
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The invention discloses a thermal shrinkage film forming device. The thermal shrinkage film forming device comprises a die head, strip casting rolls, a guiding roll, a conveying roll and a pressing roll, wherein a circle of groove for strip casting is formed in the edge of the second strip casting roll; the first strip casting roll and the guiding roll respectively penetrate in the groove; the second strip casting roll comprises a waist part and a wing part; a first gap for casting is formed between the first strip casting roll and the waist; a second gap for secondary pressing of casting strips is formed between the guiding roll and the waist part; the casting strips can penetrate through the second gap; a third gap which ensures that the first strip casting roll and the second strip casting roll rotate mutually is formed between the inner side wall of the wing part and the side wall of the first strip casting roll; the die head is arranged over the first gap; a sprayer which faces the third gap is arranged on the wing part; and a gas inlet hole which is used for feeding gas to the second strip casting roll is formed in the outer side wall of the wing part. By the scheme, the problem that residual fused matters are adhered on side walls of the two strip casting rolls to affect the quality of the casting strips in a strip casting process in the prior art is solved.
Description
technical field [0001] The invention relates to the field of plastic film production equipment, in particular to a heat shrinkable film forming device. Background technique [0002] The production process of plastic film is as follows: firstly, the high polymer raw material is heated and melted by the extruder and then extruded into a thick sheet, and then the plastic thick sheet is stretched by a certain multiple through a longitudinal drawing machine and a horizontal drawing machine within an appropriate temperature range. Plastic film can be produced by heat setting under tension, cooling and subsequent processing. [0003] The existing casting sheet mainly depends on the casting roller. The casting roller is to extrude the heated and molten plastic into a thick sheet, and then quickly quench the thick sheet to increase the number of crystals and make it meet the requirements of uniform and fine crystals. In this way, the transparency and gloss of the product are improve...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B29C47/32B29C47/86B29C47/88B29C47/92B29L7/00B29C48/35B29C48/92
CPCB29C48/30B29C48/35B29C48/87B29C48/9135B29C48/92B29C2945/76531B29L2007/00
Inventor 李云学
Owner 贵州亿博科技有限公司