A processing technology for silicone rubber product coils

Abstract

The present invention provides a processing technology for silicone rubber product coils, which improves the processing yield of coil silicone products. It includes the following steps: First, punch out a first auxiliary hole arranged in an array on the bottom film compounded with the original film through A knife. Then, adhere the glue layer of the silicone rubber to the upper surface of the original film. Use the first die of B knife to punch out the first side outer contour of the silicone rubber and the glue layer, and at the same time use the second die of B knife to punch out the center hole of the silicone rubber and the glue layer. Then, use C knife to punch out the outer contour of the second side of the silicone rubber and the glue layer, so that the whole silicone rubber is punched into products. Then, discharge the waste, discharging the non-product silicone rubber and glue layer. Then, compound a silicone rubber tape on the upper layer of the silicone rubber, and use a guiding roller to turn the whole strip 180°, so that the bottom film is arranged upwards. Then, wind up the bottom film, compound a wide film on the upper surface, use D knife to punch and slit on both sides of the wide film, and then discharge the waste wide film and wind it up. While winding up the products, wind up the compounded silicone rubber tape and separate it from the production line.

Description

Technical Field

[0001] The invention relates to the technical field of silicone product manufacturing, in particular to a silicone rubber product coil processing technology. Background Art

[0002] When making VR glasses silicone products, it is necessary to arrange several silicone products in an array and then roll them into a coil. Since the thickness of silicone products is relatively thick, the existing roller knife direct punching and forming will cause the shape of the product to be squeezed, thereby reducing the defective rate of the product. Therefore, it is urgent to develop a processing technology that ensures the product yield. Summary of the invention

[0003] In view of the above problems, the present invention provides a silicone rubber product coil processing technology, which improves the processing yield of coil silicone products.

[0004] A silicone rubber product coil processing process, characterized in that it comprises the following steps:

[0005] The first auxiliary holes arranged in an array are punched out in advance on the base film compounded with the original film by knife A, and then the silicone rubber layer is adhered to the upper surface of the original film, and the first side outer contour is punched out of the silicone and the rubber layer by the first knife die of knife B, and the center hole of the silicone and the rubber layer is punched out by the second knife die of knife B, and then the outer contour of the second side of the silicone and the rubber layer is punched out by knife C, so that the entire silicone is punched into products, and then the non-product silicone and rubber layer are discharged as waste, and then a silicone belt is compounded on the upper layer of the silicone, and the entire material belt is turned 180° by the guide roller so that the base film is arranged upward, and then the base film is rolled up, and a wide film is compounded on the upper surface, and strips are punched on both sides of the wide film by knife D, and then the waste wide film is discharged and rolled up, and the composite silicone belt is rolled up and separated from the production line while the product is rolled up.

[0006] It is further characterized by:

[0007] When the product is finally rolled up, a release film is laminated on the upper surface of the wide film. The release film ensures that the silicone will not directly adhere to the wide film during rolling up, causing adhesion and difficulty in unloading.

[0008] The width of the release film is greater than the product area, and not greater than the width after being punched and divided into strips;

[0009] The A knife, B knife, C knife and D knife are all QAC punch knives;

[0010] The entire production line is operated in steps;

[0011] The area of the first auxiliary hole punched out by the A knife is larger than the area of the central hole punched out by the second die of the B knife, ensuring that waste discharge is reliable and stable;

[0012] A waste discharging and transferring film is compounded at the bottom corresponding to the bottom film directly below the B knife. The waste discharging and transferring film is used to discharge the waste of the silica gel and the adhesive layer cut by the second die of the B knife.

[0013] The die of the C knife and the first die of the B knife are combined to form the outer contour of the product, and the contour is made accurate and reliable through two - knife slitting.

[0014] The original film is composed of two strip - shaped structures with a vacancy in the center of the width, which are arranged on the upper surfaces on both sides of the bottom film. The silica gel and the adhesive layer are compounded on the upper surface of the bottom film, and the two original films are arranged outside the silica gel and the adhesive layer.

[0015] When the bottom film is wound up, the original film is wound up at the same time, making the subsequent operations convenient and reliable.

[0016] After adopting the present invention, a first auxiliary hole is pre - punched on the bottom film, and then the silica gel and the adhesive layer are compounded onto the bottom film. The outer contour of the product is punched out in two times by the first die of the B knife and the C knife. At the same time, the central hole area is punched out by the second die of the B knife, and then the waste in the central hole area is discharged. A silica gel tape is compounded on the upper surface of the silica gel, and the non - sticky surface of the silica gel tape faces the outer surface. Then the whole composite tape is turned over 180°, making the bottom film face upward. Then the bottom film is wound up, a wide film is compounded on the upper surface, the two sides of the wide film are stamped and slit by the D knife, and then the waste wide film is discharged and wound up. When the product is wound up, the composite silica gel tape is wound up and separated from the production line. The outer contour of the product is punched out by the die in two times, and a first auxiliary hole is preset at the bottom of the waste discharge of the central hole, ensuring smooth waste discharge and improving the processing yield of the coiled silica gel product. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the product structure specifically applicable to the present invention;

[0018] Figure 2 It is a coiled material schematic diagram of the product specifically applicable to the present invention;

[0019] Figure 3 It is a process route diagram of the present invention;

[0020] Figure 4 It is a schematic diagram of the cutting edge and cutting layer of the A knife;

[0021] Figure 5 It is a schematic diagram of the cutting edge and cutting layer of the B knife;

[0022] Figure 6 It is a schematic diagram of the cutting edge and cutting layer of the C knife;

[0023] Figure 7 It is a schematic diagram of the cutting edge and cutting layer of the D knife. Detailed Embodiments

[0024] A processing technology for a roll of silicone rubber products, and the products produced thereby are shown in Figure 1 and Figure 2 , which includes the following steps:

[0025] First, a plurality of first auxiliary holes arranged in an array are punched out on a bottom film laminated with an original film by a knife A. The original film is composed of two strip-shaped structures with a central vacancy in width, and is arranged on the upper surfaces of both sides of the bottom film;

[0026] After that, the silicone and the adhesive layer below it are adhered to the upper surface of the central area in the width direction of the bottom film. The combined thickness of the silicone + adhesive layer is greater than the thickness of the original film. Then, the first side outer contour of the silicone and the adhesive layer is punched out by the first die of the knife B. At the same time, the central hole of the silicone and the adhesive layer is punched out by the second die of the knife B. A waste discharging and transporting film is laminated corresponding to the bottom of the bottom film directly below the knife B, and the waste discharging and transporting film is used to discharge the waste of the silicone and the adhesive layer punched out by the second die of the knife B;

[0027] After that, the outer contour of the second side of the silicone and the adhesive layer is punched out by a knife C, so that the whole silicone is punched into products. Then, the waste of the non-product silicone and the adhesive layer is discharged. Then, a silicone tape is laminated on the upper layer of the silicone. The whole strip of material is turned over 180° through a guiding roller, so that the bottom film is arranged upwards. Then, the bottom film is wound up, and the original film is wound up simultaneously when the bottom film is wound up;

[0028] After that, a wide film is laminated on the upper surface. The two sides of the wide film are stamped and slit by a knife D. Then, the waste wide film is discharged and wound up. The composite silicone tape is wound up and separated from the production line while the products are wound up.

[0029] Specifically, during the final winding of the products, a release film is laminated on the upper surface of the wide film at the same time. The release film ensures that the silicone will not directly adhere to the wide film during winding, making it difficult to discharge the material;

[0030] The width of the release film is greater than the product area and not greater than the width after being stamped and slit;

[0031] The knife A, the knife B, the knife C, and the knife D are all QAC punching knives, and the whole production line operates step by step;

[0032] The area of the first auxiliary holes punched out by the knife A is larger than the area of the central holes punched out by the second die of the knife B, ensuring reliable and stable waste discharging;

[0033] The die of the knife C and the first die of the knife B form the outer contour of the product, and the contour is made accurate and reliable through two-step cutting.

[0034] In specific implementation, the original film is a structure of two release films with a thickness of 0.1 mm and a width of 20 mm; the width of the bottom film is 75 mm, the silicone is KE 951 A50 with a thickness of 0.75 mm, the adhesive layer is 3M GTM 705BP and its width is 36 mm; the width of the silicone tape is 40 mm, the width of the wide film is 50 mm, and the width of the release film is 44 mm.

[0035] Its working principle is as follows: First, punch the first auxiliary hole on the bottom film, then compound the silicone and the adhesive layer onto the bottom film. Cut out the outer contour of the product in two steps with the first die of the B knife and the C knife, and at the same time cut out the center hole area with the second die of the B knife. Then discharge the waste of the center hole area. Compound the silicone tape on the upper surface of the silicone, making the non-adhesive surface of the silicone tape face the outer surface. Then turn the entire composite tape 180°, making the bottom film face up. Then wind up the bottom film, compound the wide film on the upper surface, punch and separate the strips on both sides of the wide film with the D knife, then discharge the waste wide film and wind it up. When winding up the product, wind up the composite silicone tape and separate it from the production line; it cuts out the outer contour of the product with two dies, and pre-sets the first auxiliary hole at the bottom of the center hole waste, ensuring smooth waste discharge and improving the processing yield of the coiled silicone product.

[0036] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0037] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A processing technology for silicone rubber product coils, characterized in that, It includes the following steps: The first auxiliary holes arranged in an array are punched out in advance on the base film compounded with the original film by knife A. The original film is two strip-shaped structures with a vacant center in the width, which are arranged on the upper surfaces of both sides of the base film. The silicone and the adhesive layer are compounded on the upper surface of the base film. The two original films are arranged on the outer sides of the silicone and the adhesive layer. The combined thickness of the silicone + adhesive layer is greater than the thickness of the original film. The first cutting die of knife B is used to punch out the first side outer contour of the silicone and the adhesive layer. At the same time, the center holes of the silicone and the adhesive layer are punched out by the second cutting die of knife B. Then, The outer contour of the second side of the silicone and the rubber layer is cut by the C knife, so that the entire silicone is cut into products, and then the non-product silicone and rubber layer are discarded, and then the silicone belt is compounded on the upper layer of the silicone, and the entire material belt is turned 180° by the guide roller, so that the bottom film is arranged upward, and then the bottom film is rolled up, and the original film is rolled up at the same time when the bottom film is rolled up, and a wide film is compounded on the upper surface, and the two sides of the wide film are punched and divided by the D knife, and then the waste wide film is discharged and rolled up, and the composite silicone belt is rolled up and separated from the production line while the product is rolled up; When the product is finally rolled up, a release film is laminated on the upper surface of the wide film. The release film ensures that the silicone will not directly adhere to the wide film during rolling up, causing adhesion and difficulty in unloading. The width of the release film is greater than the product area, and not greater than the width after being punched and divided into strips; A waste transport film is compounded at the bottom of the base film just below the B knife, and the waste transport film is used to discharge the silicone and the adhesive layer punched out by the second cutting die of the B knife.

2. The processing technology of a silicone rubber product coil as described in claim 1, characterized in that: The A knife, B knife, C knife and D knife are all QAC punch knives.

3. A processing technology for silicone rubber product coils as described in claim 1, characterized in that: The entire production line operates in steps.

4. The processing technology of a silicone rubber product coil as described in claim 1, characterized in that: The area of the first auxiliary hole punched out by the A knife is larger than the area of the central hole punched out by the second die of the B knife.

5. A processing technology for silicone rubber product coils as described in claim 1, characterized in that: The cutting die of the C knife and the first cutting die of the B knife are combined to form the outer contour of the product.

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