Self-adhesion membrane blowing production equipment and production method

Abstract

The invention provides self-adhesion membrane blowing production equipment. The equipment comprises a nose, a herringbone splint, membrane tube traction pinch rolls, a sectioning cutter, a left set of membrane coiling mechanism and a right set of membrane coiling mechanism, wherein the herringbone splint is positioned above the nose; a membrane tube traction pinch roll is positioned above the herringbone splint; the left set of membrane coiling mechanism and the right set of membrane coiling mechanism are positioned under the sectioning cutter; and a pair of membrane traction pinch rolls are arranged under the sectioning cutter, two pairs of opening pinch rollers are bilaterally and symmetrically arranged under the membrane traction pinch rolls, the left opening pinch rollers are positioned above the left membrane coiling mechanism, and the right opening pinch rollers are positioned above the right membrane coiling mechanism. The production equipment can smoothly coil the self-adhesion membrane, protects the self-adhesion membrane against wrinkle and fluctuation due to adhesion to the surfaces of a foam stabilizing device, the herringbone splint and the membrane tube traction pinch rolls, and ensures enough adhesion of the self-adhesion membrane finished product. The invention also provides a self-adhesion membrane blowing production method.

Description

technical field [0001] The invention belongs to the technical field of self-adhesive film production equipment and production methods, in particular to a self-adhesive film blown film production equipment and a blown film production method. Background technique [0002] Self-adhesive film, also known as self-adhesive protective film, has a sticky adhesive layer on one surface. The self-adhesive film is widely used in the surface protection of electrical and electronic equipment such as mobile phones and computers, as well as plastics, glass, building materials and other objects. The advantage of no residual adhesive substances on the surface. The self-adhesive film can be produced by gluing method, salivation method and co-extrusion blown film method. [0003] The existing self-adhesive film blown film production equipment includes a machine head, a herringbone splint, a film tube pulling and clamping roller, a slitting knife, and two sets of film winding mechanisms. When...

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Problems solved by technology

[0004] In the self-adhesive film blown film production process of the prior art, when the self-adhesive film bubble is extruded, the adhesive layer is generally located on the outer layer, otherwise, if the adhesive layer is located on the inner layer, the ring-shaped self-adhesive film will be flattened by the splint Finally, the adhesive layers of the annular self-adhesive film will face each other and stick together, so in the subsequent process, it is difficult to rely on the traction force of the take-up mechanism to separate the two adhesive layers, because as we all know, when the take-up mechanism takes up , the surface tension of the coil must be accurately controlled within a certain value range, and the surface tension of the coil in this value range is difficult to separate the two adhesive layers, so it cannot be rolled smoothly

[0005] Based on the above reasons, in the production process of the self-adhesive film blown film method in the prior art, the adhesive layer is generally arranged on the outer layer of the annular bubble, but this will cause the following problems: when the self-adhesive film is advancing, the adhesive layer must pass through And come into contact with the surface of many parts such as foam stabilizer, herringbone splint, film tube traction nip roller, etc., so that the adhesive layer will stick to the surface of many of the above parts, which will not only easily cause wrinkles and shakes of the self-adhesive film, but also affect the self-adhesive film. Viscosity (cohesive force) of the finished mucosa

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