CN211339363U - Double-sided adhesive tape for flexible circuit board - Google Patents
Double-sided adhesive tape for flexible circuit board Download PDFInfo
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- CN211339363U CN211339363U CN201921860486.0U CN201921860486U CN211339363U CN 211339363 U CN211339363 U CN 211339363U CN 201921860486 U CN201921860486 U CN 201921860486U CN 211339363 U CN211339363 U CN 211339363U
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Abstract
The utility model relates to a double-sided tape for flexible circuit board, this double-sided tape include finished product material area (1), finished product and supplementary material area (2), finished product material area (1) and supplementary material area (2) press from both sides the finished product in the centre, double-sided tape is still including increasing strip (3), it is close to the finished product setting to increase strip (3), one end and supplementary material area (2) fixed connection, the other end and finished product material area (1) separable connection, the thickness that increases strip (3) is greater than off-the-shelf thickness. Compared with the prior art, the utility model discloses can effectively avoid the automaton can't get the material or the sticky tape the condition of excessive glue appears to simple structure, easily popularization.
Description
Technical Field
The utility model relates to a cross cutting field, concretely relates to double-sided tape for flexible circuit board.
Background
The application of the current automation degree is accelerated, the synchronous requirement of a coiled material supply mode is on the rising trend in the die cutting industry, and the double-sided adhesive tape mainly plays a role in fixing a flexible circuit board, which is called FPC for short, in the current mobile phone, notebook and digital products.
Fig. 1 is a schematic diagram of a conventional die cutting process of a double-sided tape, in which a core 9 is disposed in the middle, an arrow without a numeral label on a side is an acting force, and fig. 2 is an enlarged view of a position a in fig. 1, i.e., a common double-sided tape structure applied to fig. 1, and sequentially includes a finished tape 1, a double-sided tape 5, a handle film 4, and an auxiliary tape 2. It can be seen that, under the state that the die-cut product supplies for the coiled material, because roll core is circular, the product covers on roll core, every book all can have a relative power, when roll number increases the product relative power of interior roll core can increase along with to, further result in finished product and the adhesion that the material area is more "firm", after further adhesion, the customer when using, need tear the product from the material area and leave, lead to interior roll position bad, the proportion is about 5%.
The existing technology is direct with supplementary material area from the type face to the type face of releasing in finished product material area, and the finished product presss from both sides between supplementary material area and finished product material area, along with roll up the change of core diameter size and produce the effort of corresponding size, leads to the abnormal conditions to appear in the finished product, and common abnormal conditions includes: when a user uses a finished product, the automatic machine cannot take the material; the finished product has glue overflow due to extrusion.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a double-sided tape for flexible circuit board in order to solve above-mentioned problem, avoid rolling up the core and produce the effort to the finished product.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a double-sided tape for flexible circuit board, this double-sided tape includes finished product material area, finished product and supplementary material area, finished product material area and supplementary material area press from both sides the finished product in the centre, double-sided tape is still including increasing the strip, it is close to the finished product setting to increase the strip, one end and supplementary material area fixed connection, other end and finished product material area separable connection, the thickness that increases the strip is greater than off-the-shelf thickness. The strip that will increase adheres to the side in supplementary material area, fixes the finished product on finished product material area, connects finished product material area and supplementary material area again, supplementary material area includes from the profile and does not leave the profile, adopts silicon oil to paint from the profile, will increase the strip and fix when supplementary material area, from the profile with increase the stiff end that the strip is equipped with the adhesion coating openly relative, the finished product material area includes from the profile and does not leave the profile, adopts silicon oil to paint from the profile, locate the finished product material area on the profile, when connecting finished product material area and supplementary material area, the finished product orientation increases the strip.
Furthermore, the height increasing strip comprises a fixed end and a free end, an adhesive layer is arranged on the end face, connected with the auxiliary material strip, of the fixed end, the height increasing strip is fixed on the auxiliary material strip through the adhesive layer, the adhesive layer is connected with one end of a release face of the auxiliary material strip, the release face is coated with silicone oil, the adhesive force of the adhesive layer and the release face coated with the silicone oil needs to be 60-130G, when the adhesive layer is independently tested on a steel plate, the adhesive force of the adhesive layer can be larger than 800G, the height increasing strip is guaranteed not to deviate in the process of rolling, and after a user uses the auxiliary material strip and the height increasing strip are used as industrial waste products together. Further preferably, the height-increasing strips are made of a plurality of synthetic materials, so that the height-increasing strips are not extruded and deformed when the double-sided adhesive tape is processed, and the double-sided adhesive tape is not deformed due to gravity.
Furthermore, the width of the adhesive layer is 1/4-1 times of the width of the heightening strip, and when the width of the adhesive layer is 1/4 times of the width of the heightening strip, the adhesive layer is distributed on two side edges of the end face, connected with the fixed end and the auxiliary material strip, so that the heightening strip is tightly attached to the auxiliary material strip and is not easy to be torn by a foreign object; when the width of the adhesive layer is 1 time of the width of the heightening strip, the end face of the fixed end connected with the auxiliary material strip is completely covered; when the width of the adhesive layer is greater than 1/4 times of the width of the heightening strip and less than 1 time of the width of the heightening strip, the distribution mode can refer to the distribution mode of 1/4 times.
Further, the heightening strips are arranged on the side edges of the auxiliary material belt in pairs and are aligned with the side faces of the auxiliary material belt. Increase the strip and set up in pairs and can guarantee that the space height between finished product and the supplementary material area keeps unanimous at the side in supplementary material area, contactless between the two, reduce because the supplementary material area of gravity part down with the condition of finished product contact, and increase the side of strip and supplementary material area and align mutually, avoid appearing supplementary material area and increase the condition that the strip peeled off mutually.
Further, the finished product comprises a handle film and a double-sided adhesive tape, the handle film is fixed on the finished product material belt through the double-sided adhesive tape, and the width of the handle film is smaller than that of the auxiliary material belt.
Furthermore, the width of the heightening strip is 2.0-3.0mm, and the distance between the handle film and the heightening strip is 1.0-5.0 mm. The width can be set and defined according to the specific requirements of the double-sided adhesive tape.
Furthermore, the cross section of the heightening strip is rectangular and is easy to process.
Further, the handle membrane includes laminating portion and carries the portion of drawing, and laminating portion and double faced adhesive tape are laminated mutually, carry the side of the portion of drawing locating laminating portion, carry and be equipped with on the portion of drawing and carry and draw the mouth. Further preferably, the lifting opening is circular, C-shaped, cross-shaped or rice-shaped.
Furthermore, the finished products are grouped into a group and arranged along the width direction of the finished product material belt.
The utility model discloses added on the both sides edge in supplementary material area and increased the strip, should increase the strip other end and support on finished product material area, form a space, be used for holding the finished product in this space, the thickness that increases the strip is higher than off-the-shelf thickness, guarantee that the finished product does not contact with supplementary material area, only with the contact of finished product material area, unsettled between finished product and the supplementary material area promptly, thereby make the relative action power of rolling up the core act on increasing the strip, because the relative action power that the change of rolling up the core diameter produced does not act on the finished product, further can realize that the finished product does not receive the extrusion, avoid the finished product to appear overflowing glue or other circumstances because of the rolling. In order to better support the auxiliary material belt and the finished material belt by the heightening strips, the material of the heightening strips and the adhesive layer on the heightening strips are limited to a certain extent. Compared with the prior art, the utility model discloses can effectively avoid the automaton can't get the material or the sticky tape the condition of excessive glue appears to simple structure, easily popularization.
Drawings
FIG. 1 is a schematic view of a conventional double-sided adhesive tape die-cut structure;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic structural view of the double-sided adhesive tape of the present invention being die-cut;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is a top view of a double-sided adhesive tape for a flexible circuit board;
fig. 6 is a schematic structural view of the handle film.
In the figure: 1-finished material belt; 2-auxiliary material belt; 3-heightening strips; 4-handle film; 5-double sided adhesive tape; 6-a bonding part; 7-a pulling part; 8-lifting the mouth; 9-core of winding.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Examples
As shown in fig. 3, the structure of die cutting the double-sided adhesive tape of the present invention is schematically shown, the core 9 is located in the middle, and the arrow without number mark on the side is acting force.
As shown in fig. 4, which is an enlarged view of B in fig. 3, a double-sided adhesive tape for a flexible circuit board of the present invention, the double-sided tape comprises a finished product material belt 1, a finished product and an auxiliary material belt 2, wherein the finished product material belt 1 and the auxiliary material belt 2 clamp the finished product in the middle, the finished product comprises a handle film 4 and a double-sided adhesive tape 5, the handle film 4 is fixed on the finished product material belt 1 by the double-sided adhesive tape 5, the double-sided adhesive tape also comprises heightening strips 3, the heightening strips 3 are made of various synthetic materials and are arranged on the side edges of the auxiliary material belt 2 in pairs, aligned with the side surface of the auxiliary material belt 2 and not contacted with the finished product, the heightening strip 3 comprises a fixed end and a free end, the end surface of the fixed end connected with the auxiliary material belt 2 is provided with an adhesive layer, the adhesive layer fixes the height increasing strips 3 on the auxiliary material belt 2, the free end is not provided with the adhesive layer, the free end is detachably connected with the finished material belt 1, and the thickness of the height increasing strips 3 is larger than that of the finished product. The adhesive force between the adhesive layer on the heightening strip 3 and the release surface of the auxiliary material strip coated with the silicone oil is 60-130G, when the adhesive layer is independently tested by a steel plate, the adhesive force of the adhesive layer can be more than 800G, and the width of the adhesive layer is 1/4-1 times of the width of the heightening strip.
The width of the heightening strips 3 is 2.0-3.0mm, the width of the handle film 4 is smaller than that of the auxiliary material strip 2, and the distance between the heightening strips 3 is 1.0-5.0 mm.
As shown in fig. 5, the finished product eight are grouped and arranged along the width direction of the finished material tape 1.
As shown in fig. 6, the handle film 4 includes a bonding portion 6 and a pulling portion 7, the bonding portion 6 is bonded to the double-sided tape 5, the pulling portion 7 is provided at a side of the bonding portion 6, and a pulling opening 8 is provided in the pulling portion 7.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (8)
1. The utility model provides a double-sided tape for flexible circuit board, this double-sided tape includes finished product material area (1), finished product and supplementary material area (2), finished product material area (1) and supplementary material area (2) press from both sides the finished product in the centre, its characterized in that, double-sided tape is still including increasing strip (3), it sets up to increase strip (3) neighbouring finished product, one end and supplementary material area (2) fixed connection, the other end and finished product material area (1) separable connection, the thickness that increases strip (3) is greater than off-the-shelf thickness.
2. A double-sided adhesive tape for flexible circuit boards according to claim 1, characterized in that the height increasing strips (3) comprise fixed ends and free ends, the end surfaces of the fixed ends connected with the auxiliary material tape (2) are provided with adhesive layers, and the adhesive layers fix the height increasing strips (3) on the auxiliary material tape (2).
3. The double-sided tape for flexible circuit boards as claimed in claim 2, wherein the width of the adhesive layer is 1/4-1 times the width of the raised strip.
4. A double-sided adhesive tape for flexible circuit boards according to claim 1, characterized in that the heightening strips (3) are arranged in pairs at the side edges of the auxiliary tape (2) in alignment with the side surfaces of the auxiliary tape (2).
5. Double-sided adhesive tape for flexible circuit boards according to claim 1, characterized in that the finished product comprises a handle film (4) and a double-sided adhesive tape (5), the double-sided adhesive tape (5) fixes the handle film (4) on the finished product tape (1), the width of the handle film (4) is smaller than the width of the auxiliary tape (2).
6. A double-sided tape for flexible circuit boards according to claim 5, characterized in that the width of the heightening strip (3) is 2.0-3.0mm, and the distance between the handle film (4) and the heightening strip (3) is 1.0-5.0 mm.
7. The double-sided tape for the flexible circuit board as claimed in claim 5, wherein the handle film (4) comprises a fitting portion (6) and a lifting portion (7), the fitting portion (6) is fitted with the double-sided tape (5), the lifting portion (7) is provided at a side edge of the fitting portion (6), and a lifting opening (8) is provided on the lifting portion (7).
8. A double-sided adhesive tape for flexible circuit boards according to claim 1, characterized in that the finished plurality is in a group and arranged in the width direction of the finished strip (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860486.0U CN211339363U (en) | 2019-10-31 | 2019-10-31 | Double-sided adhesive tape for flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860486.0U CN211339363U (en) | 2019-10-31 | 2019-10-31 | Double-sided adhesive tape for flexible circuit board |
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| Publication Number | Publication Date |
|---|---|
| CN211339363U true CN211339363U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921860486.0U Active CN211339363U (en) | 2019-10-31 | 2019-10-31 | Double-sided adhesive tape for flexible circuit board |
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| CN (1) | CN211339363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112126359A (en) * | 2020-10-19 | 2020-12-25 | 苏州天华超净科技股份有限公司 | Prevent excessive gluey package structure that shifts of extrusion |
-
2019
- 2019-10-31 CN CN201921860486.0U patent/CN211339363U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112126359A (en) * | 2020-10-19 | 2020-12-25 | 苏州天华超净科技股份有限公司 | Prevent excessive gluey package structure that shifts of extrusion |
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