阅读说明：本技术 双面胶包裹泡棉组件及其生产工艺、精确定位包裹设备 (Double-sided adhesive tape wrapping foam assembly, production process thereof and accurate positioning wrapping equipment ) 是由 何荣 殷冠明 于 2020-05-13 设计创作，主要内容包括：本发明涉及一种双面胶包裹泡棉组件,该双面胶包裹泡棉组件依次包括底层离型膜、双面胶、泡棉,双面胶沿泡棉两侧朝上翻折包裹泡棉的上表面,双面胶的两侧边缘翻折后贴合于泡棉中线处并且双面胶两边缘端面之间形成0.2mm±0.2mm的间隙；于双面胶的翻折面上表面覆盖有面层离型膜。本发明生产工艺包括如下步骤：a：采用旋转模切机生产泡棉双面胶复合料带：b：利用包裹治具对步骤a生产的泡棉双面胶复合料带进行包裹；c：采用平刀模切模组制备底层离型膜料带；d：将包裹料带分切成条状复合在底层离型膜料带表面进行套位模切。本发明采用上述生产工艺以及包裹治具,能使双面胶主材与泡棉主材实现精确定位包裹,使产品更适合精密装配。(The invention relates to a double-sided adhesive tape wrapped foam assembly which sequentially comprises a bottom layer release film, a double-sided adhesive tape and foam, wherein the double-sided adhesive tape is upwards turned over along two sides of the foam to wrap the upper surface of the foam, edges of two sides of the double-sided adhesive tape are attached to the central line of the foam after being turned over, and a gap of 0.2mm +/-0.2 mm is formed between end surfaces of two edges of the double-sided adhesive tape; the upper surface of the turnover face of the double-sided adhesive tape is covered with a surface layer release film. The production process comprises the following steps: a: producing the foam double-sided adhesive tape composite material belt by adopting a rotary die cutting machine: b: b, wrapping the foam double-sided adhesive tape composite material tape produced in the step a by using a wrapping jig; c: preparing a bottom release film material belt by adopting a flat-cutter die-cutting module; d: and cutting the wrapping material belt into strips, and compounding the strips on the surface of the release film material belt at the bottom layer for sleeve position die cutting. By adopting the production process and the wrapping jig, the double-sided adhesive main material and the foam main material can be precisely positioned and wrapped, so that the product is more suitable for precise assembly.)

1. The utility model provides a cotton subassembly of double faced adhesive tape parcel bubble which characterized in that: the double-sided adhesive tape wrapped foam assembly sequentially comprises a bottom layer release film, a double-sided adhesive tape attached to the bottom layer release film and foam attached to the double-sided adhesive tape, wherein the double-sided adhesive tape is upwards turned along two sides of the foam to wrap the upper surface of the foam, edges of two sides of the double-sided adhesive tape are turned over and then attached to the center line of the foam, and a gap of 0.2mm +/-0.2 mm is formed between end faces of two edges of the double-sided adhesive tape; the upper surface of the turnover face of the double-sided adhesive tape is covered with a surface layer release film.

2. The process for producing a double-sided adhesive tape-wrapped foam assembly according to claim 1, wherein: the production process comprises the following steps:

step a: producing the foam double-sided adhesive tape composite material belt by adopting a rotary die cutting machine: stripping a discharged foam material belt from release paper of a foam material roll with single-sided adhesive to enable the adhesive surface to face downwards to be compounded with the release surface of a blue release film through a first compound roller set, simultaneously compounding a first PET protective film material belt on the non-release surface of the blue release film through a first compound roller set, and die-cutting the three-layer compounded material belt through a first die-cutting roller set to remove foam waste on two sides and keep the three-layer compounded material belt of a middle foam main material;

simultaneously, uncoiling the double-sided adhesive tape, compounding the double-sided adhesive tape with the white release film material tape and the second PET protective film material tape through a second compound roller set to form a four-layer compound material tape of the double-sided adhesive tape self-carrying release paper material tape, the double-sided adhesive tape, the white release film material tape and the second PET protective film material tape, carrying out die cutting on the four-layer compound material tape through a second die cutting roller set, removing waste materials of the double-sided adhesive tape and the white release film material tape on two sides, stripping the double-sided adhesive tape self-carrying release paper material tape, turning, compounding the double-sided adhesive tape with the foam main material tape through a third compound roller set to form six layers of compound material tapes which are sequentially a white PET protective film material tape, a double-sided adhesive main material tape, a foam main material tape, a blue release film material tape and a first PET protective film material tape from top to bottom, and finally removing the second PET protective film material tape, The double-faced adhesive tape comprises a double-faced adhesive tape main material tape, a foam cotton main material tape and a blue release film tape, wherein the double-faced adhesive tape main material tape is wider than the foam cotton main material tape and is in centering composition with the foam cotton double-faced adhesive tape main material tape;

step b: b, wrapping the foam double-sided adhesive tape composite material tape produced in the step a by using a wrapping jig, wherein the wrapping jig comprises a jig table-board, and a pair of side positioning guide blocks, a double-sided adhesive tape folding roller, a first guide pressing block and a second guide pressing block are sequentially arranged on the jig table-board and along two sides of the running axis of the composite material tape; the distance between the two side positioning guide blocks is equal to the width of the double-sided adhesive tape main material belt and the width of the white release film material belt, the distance between the two double-sided adhesive turning rollers is smaller than the width of the double-sided adhesive tape main material belt and larger than the width of the foam cotton main material belt, a first turning channel is formed between the two first guide press blocks, the distance between two side surfaces of the first turning channel is equal to the sum of the width of the foam cotton main material belt and the thickness of the white release film material belt twice and the thickness of the double-sided adhesive material belt, and the height of the top surface of the first turning channel from the table top of the jig is larger than the sum of the thickness of the white release film material belt twice and the thickness of the foam cotton main material belt twice and the thickness; a tapered second turnover channel and a shaping channel connected and communicated with the second turnover channel are formed between the second guide pressing blocks; the width and the height of the inlet of the second turnover channel are respectively greater than the width and the height of the double-sided adhesive tape foam assembly after being wrapped, and the width and the height of the tail end of the second turnover channel and the width and the height of the shaping channel are respectively equivalent to the width and the height of the double-sided adhesive tape foam assembly after being wrapped; firstly, placing a white release film material strip of a foam double-faced adhesive tape composite material strip below, placing a blue release film material strip above, stripping the blue release film material strip, guiding and positioning the white release film material strip, a double-faced adhesive tape main material strip and the foam cotton main material strip through a side positioning guide block, then turning over the double-faced adhesive tape strips on two sides of the material strip upwards through a double-faced adhesive tape turning-over roller, further turning over the double-faced adhesive tape strips and the foam cotton main material strip to sequentially enter a first guide pressing block, a second guide pressing block to realize accurate positioning and wrapping, forming wrapping material strips which are the white release film material strip, the double-faced adhesive tape main material strip and the foam cotton main material strip from outside to inside, and forming a gap of 0.2mm +/-0.2 mm between two edge end faces of the turning-over;

step c: preparing a bottom release film material strip by adopting a flat knife die-cutting module, die-cutting the bottom release film material strip and a third PET protection film material strip by using a first flat knife die-cutting module after the bottom release film material strip and the third PET protection film material strip are compounded, forming a rectangular bottom release film with four chamfered corners and two positioning knife-marking lines with the width equivalent to that of a wrapping material strip after die-cutting, and simultaneously punching a sleeve position hole at the edge of the material strip;

step d: the packaging material belt is cut into strips, after the outer white release film material belt is peeled off, the double faced adhesive tape packaging foam material belt is compounded on the surface of the release film material belt at the bottom along a positioning knife crease line of the release film material belt at the bottom, the gap of the double faced adhesive tape is upward, then an in-layer laminated release film is pasted on the upper surface of the double faced adhesive tape, a second flat knife die cutting module is sent to carry out sleeve position die cutting, the second flat knife die cutting module cuts off the in-layer release film and the packaging material belt completely, the part of the packaging material belt remained in the rectangular bottom release film is remained, the waste material outside the release film at the bottom is removed, finally, each bottom release film and the packaging material belt thereon are separated, and the surface layer is integrally taken off from the release film to obtain.

3. The process for producing a double-sided tape-wrapped foam assembly according to claim 2, wherein: in the step a, two or more foam main material belts are formed after the foam material belt, the blue release film material belt and the first PET protection film material belt are compounded through a first die cutting roller set, correspondingly, four layers of composite material belts formed by the double-sided adhesive tape with the release paper material belt, the double-sided adhesive tape belt, the white release film material belt and the second PET protection film material belt also form double-sided adhesive main material belts in corresponding quantity and positions after passing through a second die cutting roller set, and the double-sided adhesive main material belts are compounded with the foam main material belts in corresponding positions respectively; and two or more foam double-sided adhesive tape composite material belts are formed at the tail end.

4. The utility model provides a double faced adhesive tape parcel bubble is cotton with accurate positioning parcel tool, it includes the tool mesa, its characterized in that: the table-board of the jig is sequentially provided with a side positioning guide block, a double faced adhesive tape folding roller, a first guide pressing block and a second guide pressing block which are respectively paired along two sides of the running axis of the composite material tape; the distance between the two side positioning guide blocks is equal to the width of the double-sided adhesive tape main material belt and the width of the white release film material belt, the distance between the two double-sided adhesive turning rollers is smaller than the width of the double-sided adhesive tape main material belt and larger than the width of the foam cotton main material belt, a first turning channel is formed between the two first guide press blocks, the distance between two side surfaces of the first turning channel is equal to the sum of the width of the foam cotton main material belt and the thickness of the white release film material belt twice and the thickness of the double-sided adhesive material belt, and the height of the top surface of the first turning channel from the table top of the jig is larger than the sum of the thickness of the white release film material belt twice and the thickness of the foam cotton main material belt twice and the thickness; a tapered second turnover channel and a shaping channel connected and communicated with the second turnover channel are formed between the second guide pressing blocks; the width and the height of the entrance of the second turnover channel are respectively greater than the width and the height of the double-faced adhesive tape foam component after being wrapped, and the width and the height of the tail end of the second turnover channel and the width and the height of the shaping channel are respectively equivalent to the width and the height of the double-faced adhesive tape foam component after being wrapped.

5. The precise positioning and wrapping jig for double faced adhesive tape wrapping foam of claim 4, wherein: and vacuumizing adsorption holes are formed in the table surface of the jig, along the running axis of the composite material belt, between the side positioning guide block, the double faced adhesive tape turnover roller and the first guide pressing block.

6. The precise positioning and wrapping jig for double faced adhesive tape wrapping foam of claim 4, wherein: a pinch roller is arranged behind the second guide pressing block.

7. The precise positioning and wrapping jig for double faced adhesive tape wrapping foam of claim 4, wherein: the axis of the double faced adhesive tape folding roller is perpendicular to the table surface of the jig, and is arranged on the table surface of the jig through an adjustable roller support.

The technical field is as follows:

the invention relates to the technical field of composite die-cutting materials at the periphery of electronic products, in particular to a double-sided adhesive tape wrapped foam assembly, a production process thereof and accurate positioning wrapping equipment.

Background art:

at present, electronic products such as computers, mobile phones and tablet computers are designed more and more precisely, and the size requirement is higher and higher, so that the requirements on various composite die cutting assemblies used in the electronic products are higher and higher. In some electronic products, the double-faced adhesive tape is required to wrap the foam component to realize bonding and buffering, and in the traditional double-faced adhesive tape wrapped foam component, the edge distance of the double-faced adhesive tape after wrapping is difficult to control, or the distance is too large, the wrapping effect is poor, or the overlapping phenomenon is easy to occur, so that the thickness of a finished product is deviated, and the whole effect is influenced; in addition, the production process of the current wrapping assembly is also complex, and the production efficiency is low.

The invention content is as follows:

the invention aims to overcome the defects in the prior art and provides a double-sided adhesive tape wrapping foam assembly, a production process thereof and accurate positioning wrapping equipment.

The technical scheme adopted by the invention is as follows: a double faced adhesive tape wrapped foam assembly sequentially comprises a bottom layer release film, a double faced adhesive tape attached to the bottom layer release film and foam attached to the double faced adhesive tape, wherein the double faced adhesive tape is upwards turned along two sides of the foam to wrap the upper surface of the foam, edges of two sides of the double faced adhesive tape are turned over and then attached to the central line of the foam, and a gap of 0.2mm +/-0.2 mm is formed between end faces of two edges of the double faced adhesive tape; the upper surface of the turnover face of the double-sided adhesive tape is covered with a surface layer release film.

The invention also provides a production process of the double-sided adhesive tape wrapped foam assembly, which comprises the following steps:

step a: producing the foam double-sided adhesive tape composite material belt by adopting a rotary die cutting machine: stripping a discharged foam material belt from release paper of a foam material roll with single-sided adhesive to enable the adhesive surface to face downwards to be compounded with the release surface of a blue release film through a first compound roller set, simultaneously compounding a first PET protective film material belt on the non-release surface of the blue release film through a first compound roller set, and die-cutting the three-layer compounded material belt through a first die-cutting roller set to remove foam waste on two sides and keep the three-layer compounded material belt of a middle foam main material; (ii) a

Simultaneously, uncoiling the double-sided adhesive tape, compounding the double-sided adhesive tape with the white release film material tape and the second PET protective film material tape through a second compound roller set to form a four-layer compound material tape of the double-sided adhesive tape self-carrying release paper material tape, the double-sided adhesive tape, the white release film material tape and the second PET protective film material tape, carrying out die cutting on the four-layer compound material tape through a second die cutting roller set, removing waste materials of the double-sided adhesive tape and the white release film material tape on two sides, stripping the double-sided adhesive tape self-carrying release paper material tape, turning, compounding the double-sided adhesive tape with the foam main material tape through a third compound roller set to form six layers of compound material tapes which are sequentially a white PET protective film material tape, a double-sided adhesive main material tape, a foam main material tape, a blue release film material tape and a first PET protective film material tape from top to bottom, and finally removing the second PET protective film material tape, The double-faced adhesive tape comprises a double-faced adhesive tape main material tape, a foam cotton main material tape and a blue release film tape, wherein the double-faced adhesive tape main material tape is wider than the foam cotton main material tape and is in centering composition with the foam cotton double-faced adhesive tape main material tape;

step b: b, wrapping the foam double-sided adhesive tape composite material tape produced in the step a by using a wrapping jig, wherein the wrapping jig comprises a jig table-board, and a pair of side positioning guide blocks, a double-sided adhesive tape folding roller, a first guide pressing block and a second guide pressing block are sequentially arranged on the jig table-board and along two sides of the running axis of the composite material tape; the distance between the two side positioning guide blocks is equal to the width of the double-sided adhesive tape main material belt and the width of the white release film material belt, the distance between the two double-sided adhesive turning rollers is smaller than the width of the double-sided adhesive tape main material belt and larger than the width of the foam cotton main material belt, a first turning channel is formed between the two first guide press blocks, the distance between two side surfaces of the first turning channel is equal to the sum of the width of the foam cotton main material belt and the two times of the thickness of the double-sided adhesive tape belt and the two times of the thickness of the white release film material belt, and the height of the top surface of the first turning channel from the table top of the jig is larger than the sum of the two times of the thickness of the white release film material belt and the; a tapered second turnover channel and a shaping channel connected and communicated with the second turnover channel are formed between the second guide pressing blocks; the width and the height of the inlet of the second turnover channel are respectively greater than the width and the height of the double-sided adhesive tape foam assembly after being wrapped, and the width and the height of the tail end of the second turnover channel and the width and the height of the shaping channel are respectively equivalent to the width and the height of the double-sided adhesive tape foam assembly after being wrapped; firstly, placing a white release film material strip of a foam double-faced adhesive tape composite material strip below and placing a blue release film material strip above, stripping the blue release film material strip, guiding and positioning the white release film material strip, a double-faced adhesive tape main material strip and the foam cotton main material strip through a side positioning guide block, then turning over the double-faced adhesive tape strips on two sides of the material strip upwards through a double-faced adhesive tape turning-over roller, further turning over the double-faced adhesive tape strips to enter a first turning-over channel of a first guide pressing block, forming bonding and positioning between two sides of the double-faced adhesive tape strips and two sides of the foam cotton main material strip after the double-faced adhesive tape strips pass through the first turning-over channel, wherein the inner surfaces of the turning-over surfaces of the double-faced; then, the double-sided adhesive tape and the foam main material tape are accurately positioned and wrapped in a progressive wrapping mode of a second guide pressing block, so that wrapping tapes which are a white release film tape, the double-sided adhesive main material tape and the foam main material tape from outside to inside are formed, and a gap of 0.2mm +/-0.2 mm is formed between the end faces of two edges of the turnover face of the double-sided adhesive main material tape;

step c: preparing a bottom release film material strip by adopting a flat knife die-cutting module, die-cutting the bottom release film material strip and a third PET protection film material strip by using a first flat knife die-cutting module after the bottom release film material strip and the third PET protection film material strip are compounded, forming a rectangular bottom release film with four chamfered corners and two positioning knife-marking lines with the width equivalent to that of a wrapping material strip after die-cutting, and simultaneously punching a sleeve position hole at the edge of the material strip;

step d: cutting the wrapping material belt into strips, peeling off the outer white release film material belt, compounding the double-sided adhesive wrapping foam material belt on the surface of the bottom release film material belt along the positioning knife-marking line of the bottom release film material belt, enabling the gap of the double-sided adhesive to be upward, adhering an upper surface laminated release film on the upper surface of the double-sided adhesive, and feeding the double-sided adhesive to a second flat knife die cutting module for sleeve position die cutting; and the second flat cutter die cutting module cuts off the surface layer release film and the wrapping material belt completely, the part of the wrapping material belt remained in the rectangular bottom layer release film is remained, the waste materials outside the bottom layer release film are removed, and finally, each bottom layer release film and the wrapping material belt and the surface layer release film on the bottom layer release film are integrally taken down to obtain a finished product.

In the production process, in the step a, two or more foam main material belts are formed after the foam material belt, the blue release film material belt and the first PET protection film material belt are compounded through the first die cutting roller set, correspondingly, four layers of composite material belts formed by the double-sided adhesive tape with the release paper material belt, the double-sided adhesive tape belt, the white release film material belt and the second PET protection film material belt also form the double-sided adhesive main material belts in corresponding quantity and positions after the four layers of composite material belts pass through the second die cutting roller set, and the two layers of composite material belts are compounded with the foam main material belts in corresponding positions respectively; two or more foam double-sided adhesive composite material belts are formed at the tail ends, namely two or more groups of cutting edges are respectively arranged on the first die cutting roller group and the second die cutting roller group for die cutting, so that the production efficiency of the foam double-sided adhesive composite material belts can be improved exponentially, the utilization rate of materials can be improved, and waste is reduced; meanwhile, two or more groups of cutting edges are arranged on the flat cutter die cutting module in the corresponding steps c and d, and the production efficiency of finished products can be improved.

The invention also provides an accurate positioning and wrapping jig for wrapping foam by using the double-sided adhesive tape, which comprises a jig table board, wherein: the table-board of the jig is sequentially provided with a side positioning guide block, a double faced adhesive tape folding roller, a first guide pressing block and a second guide pressing block which are respectively paired along two sides of the running axis of the composite material tape; the distance between the two side positioning guide blocks is equal to the width of the double-sided adhesive tape main material belt and the width of the white release film material belt, the distance between the two double-sided adhesive turning rollers is smaller than the width of the double-sided adhesive tape main material belt and larger than the width of the foam cotton main material belt, a first turning channel is formed between the two first guide press blocks, the distance between two side surfaces of the first turning channel is equal to the sum of the width of the foam cotton main material belt and the thickness of the white release film material belt twice and the thickness of the double-sided adhesive material belt, and the height of the top surface of the first turning channel from the table top of the jig is larger than the sum of the thickness of the white release film material belt twice and the thickness of the foam cotton main material belt twice and the thickness; a tapered second turnover channel and a shaping channel connected and communicated with the second turnover channel are formed between the second guide pressing blocks; the width and the height of the entrance of the second turnover channel are respectively greater than the width and the height of the double-faced adhesive tape foam component after being wrapped, and the width and the height of the tail end of the second turnover channel and the width and the height of the shaping channel are respectively equivalent to the width and the height of the double-faced adhesive tape foam component after being wrapped.

And vacuumizing adsorption holes are formed in the table surface of the jig, along the running axis of the composite material belt, between the side positioning guide block, the double faced adhesive tape turnover roller and the first guide pressing block.

A pinch roller is arranged behind the second guide pressing block.

The axis of the double faced adhesive tape folding roller is perpendicular to the table surface of the jig, and is arranged on the table surface of the jig through an adjustable roller support.

By adopting the production process and the wrapping jig, the invention can realize accurate positioning and wrapping of the double-sided adhesive main material and the foam main material, especially can form accurate tiny gaps after wrapping, has good wrapping effect, and can avoid the product thickness error caused by overlapping or wrinkling of the double-sided adhesive edges, thereby enabling the product to be more suitable for precision assembly.

Description of the drawings:

fig. 1 and 2 are schematic structural diagrams of a double-sided adhesive tape wrapped foam component of the invention;

FIG. 3 is a flow chart of the process for producing the double-sided adhesive foam composite tape of the present invention;

fig. 4 and 5 are schematic views showing the development of the cutting edges of the first and second die-cutting roller sets respectively according to the embodiment of the present invention;

fig. 6 and 7 are schematic overall structural views of the positioning and wrapping jig of the invention;

fig. 8 and 9 are respectively schematic structural diagrams (bottom view angle) of a first guide pressing block and a second guide pressing block in the positioning and wrapping jig;

FIGS. 10 and 11 are schematic diagrams of a first flat-blade die-cutting module and a second flat-blade die-cutting module according to an embodiment of the present invention;

fig. 12 is an effect diagram of superposition of the cutting dies in fig. 10 and 11.

The specific implementation mode is as follows:

as shown in fig. 1-2, the double-sided adhesive tape wrapped foam assembly of the present invention sequentially comprises a bottom release film 1, a double-sided adhesive tape 2 attached to the bottom release film 1, and a foam 3 attached to the double-sided adhesive tape 2, wherein the double-sided adhesive tape 2 is folded upwards along two sides of the foam 3 to wrap an upper surface of the foam 3, edges of two sides of the double-sided adhesive tape 2 are folded and then attached to a center line of the foam 3, and a gap 20 of 0.2mm ± 0.2mm is formed between end faces of two edges of the double-sided adhesive tape 3; the upper surface of the turnover face of the double-sided adhesive tape 3 is covered with a surface layer release film 4.

The production process of the double-sided adhesive tape wrapped foam component comprises the following steps:

step a, as shown in figures 3-5, a rotary die cutting machine is adopted to produce a foam double-sided adhesive composite tape, wherein a self-carrying release paper P11 of a foam roll P1 with adhesive on one side is peeled off from a discharge foam tape P2, so that the adhesive surface faces downwards to be compounded with a release surface of a blue release film tape L1 through a first compound roller set F1, meanwhile, a non-release surface of the blue release film tape L1 is compounded with a first PET protective film tape B1 through a first compound roller set F1, after the three-layer compounded tape is subjected to die cutting through a first die cutting roller set Q1, foam waste on two sides is removed, and a three-layer compound tape M1 with a middle foam main material is reserved, the waste P3 is arranged on the outer side of the foam roll Q1, the blue release film tape L1 is not cut, and the foam main material tape with a required width is arranged in the middle;

simultaneously, the double-sided tape with the self-release layer is uncoiled and is compounded with a white release film material strip L and a second PET protection film material strip B2 through a second compound roller set F2 to form a double-sided tape self-release paper material strip S11, a double-sided tape S12, a white release film material strip L and a second PET protection film material strip B2, the four layers of compound material strips are subjected to die cutting through a second die cutting roller set Q2 to discharge double-sided tape waste materials and white release film material strip waste materials at two sides and peel off the double-sided tape self-release paper material strip S11, then the double-sided tape main material strip and the foam main material strip are subjected to composite material strip turning through a third compound roller set F3 to form six layers of compound material strips which are sequentially a second PET protection film material strip B2, a white film material strip L, a double-sided tape main material strip, a foam main material strip, a blue release film material strip L and a first PET protection film B1 from top to bottom, and finally, a second PET protection film B2, a first PET protection film B1, a white release film strip M356 and a blue compound material strip M2 and a double-sided tape M2, and a double-sided tape M3 is formed in the compound material strip composite material strip of the double-sided tape, and the double-sided tape composite material strip M2, and the double-sided tape composite material strip M2, and the;

b, as shown in fig. 6-9, wrapping the foam double-sided adhesive composite tape produced in the step a by using a wrapping jig, wherein the wrapping jig comprises a jig table-board 5, a pair of side positioning guide blocks 51, a double-sided adhesive folding roller 52, a first guide pressing block 53 and a second guide pressing block 54 are sequentially arranged on the jig table-board 5 along two sides of a running axis of the composite tape, wherein the distance between the two side positioning guide blocks 51 is equal to the width of the double-sided adhesive main tape, the distance between the two double-sided adhesive folding rollers 52 is smaller than the width of the double-sided adhesive main tape and larger than the width of the foam main tape, a first folding channel 530 is formed between the two first guide pressing blocks 53, the distance between two side surfaces of the first folding channel 530 is equal to the sum of the thickness of the foam main tape L and twice of the thickness of the white foam film tape 34 and the thickness of the double-sided adhesive main tape, the thickness of the double-sided adhesive tape, the first folding channel 530 is equal to the sum of the thickness of the double-sided adhesive tape 54 of the double-sided adhesive tape, the main folding tape, the folding tape 2, the folding tape is formed by sequentially adhering the first folding tape 5 and the folding tape, the folding tape 5, the folding tape is formed by the folding tape, the folding tape forming a first folding tape 2, the folding tape is formed by the folding tape, the folding tape forming a first folding tape is formed by the folding tape, the folding tape forming a first folding tape forming a folding tape by the folding tape forming a first folding tape forming a first folding tape forming a folding tape by a folding tape forming a folding tape by the folding tape forming a first folding tape forming a folding tape by a folding tape forming a first folding tape forming a folding tape forming machine, a folding machine, a;

step c: as shown in fig. 10-11, a bottom release film material tape is prepared by using a flat-knife die-cutting module, the bottom release film material tape is die-cut by using a first flat-knife die-cutting module after being compounded with a third PET protective film material tape, a rectangular bottom release film with four corners chamfered and two positioning knife-scored lines with the width equivalent to that of a wrapping material tape are formed after die-cutting, and simultaneously, a nesting hole is punched at the edge of the material tape; the first flat cutter die cutting module is provided with three groups of blades, one rectangular blade R11 with a chamfer cuts the bottom layer release film material strip to form a bottom layer release film, and the other two linear blades R12 do not cut the bottom layer release film material strip and only form a positioning knife crease line on the bottom layer release film material strip; a group of circular blades R13 for punching sleeve position through holes on the edge of the third PET protective film material belt and a pair of positioning columns for sleeve position are arranged;

d, combining the drawings 11-12, cutting the wrapping material belt into strips, compounding the double-sided adhesive-wrapped foam material belt on the surface of the bottom release film material belt along the positioning knife-marking line of the bottom release film material belt after peeling off the outer white release film material belt L2, pasting a layer-layer release film 4 on the upper surface of the double-sided adhesive, feeding the layer-layer release film into a second plane-cutter die-cutting module for sleeve position die-cutting, wherein the second plane-cutter die-cutting module is provided with a group of approximately square blades R21 with chamfers corresponding to the required shape of the double-sided adhesive-wrapped foam, and a pair of positioning columns for sleeve position, the second plane-cutter die-cutting module cuts off the surface layer film and the wrapping material belt completely, the part of the wrapping material belt remained in the rectangular bottom layer release film is reserved, waste materials outside the bottom layer release film 1 are removed, and finally, the whole wrapping release film 1 and the surface layer release film 4 on the bottom layer release film are removed to obtain a finished product.

In the production process, in the step a, the foam material belt P2, the blue release film material belt L and the first PET protection film material belt B1 are compounded and then pass through the first die-cutting roller group Q1 to form two or more foam main material belts, correspondingly, four layers of composite material belts formed by the double-sided adhesive tape from the release paper material belt S11, the double-sided adhesive tape belt S12, the white release film material belt 632 and the second PET protection film material belt B2 also form corresponding quantity and position double-sided adhesive main material belts after passing through the second die-cutting roller group Q2, and are compounded with the foam main material belts in corresponding positions respectively, and two or more foam double-sided adhesive composite material belts are formed at the tail ends, namely, two or more groups of blades are respectively arranged on the first die-cutting roller group Q1 and the second die-cutting roller group Q2 for carrying out, as shown in figures 4 and 5 linear blades, one blade belt is respectively arranged on the upper and the lower blade group, one blade of the middle blade group Q2 is correspondingly, the two groups of the first die-cutting roller group Q1 are correspondingly, the two linear blades of the double-sided adhesive main material belts, the two groups of the double-sided adhesive main material belts can be correspondingly, the waste of the double-sided adhesive main material belts can be eliminated, the double-sided adhesive tape belt is eliminated correspondingly, the middle-sided adhesive tape manufacturing efficiency of the double-sided adhesive main material belt is increased, the double-sided adhesive tape belt, the double-sided adhesive tape manufacturing step Q2, the double-sided adhesive tape belt is increased, the same, the double-sided adhesive.

The positioning and wrapping jig adopted by the invention is detailed in the step b, and therefore, the detailed description is omitted. Furthermore, on the jig table-board 5, along the composite material strip operation axis, between the side positioning guide blocks 51, between the double-faced adhesive tape folding rollers 52, and between the first guide pressing blocks 53, vacuumized adsorption holes 50 are arranged, so that the material strip can be accurately positioned in the operation process, and the package positioning precision is improved.

The axis of the double faced adhesive tape folding roller 52 is vertical to the jig table surface and is arranged on the jig table surface 5 through the adjustable roller bracket 521; meanwhile, the distance between the side positioning guide plate 51, the first guide pressing block 53 and the second guide pressing block 54 can be adjusted and controlled according to the requirement.

By adopting the production process and the wrapping jig, the invention can realize accurate positioning and wrapping of the double-faced adhesive tape main material and the foam main material, especially can form accurate tiny gaps after wrapping, has good wrapping effect, and can avoid the product thickness error caused by overlapping or wrinkling of the double-faced adhesive tape edges, thereby enabling the product to be more suitable for precision assembly. The process and the jig can obviously improve the production efficiency of products.

It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.