A material-saving die-cutting device for PI products

Abstract

The application relates to a PI product material-saving die-cutting device, which comprises a first die-cutting unit and a second die-cuting unit arranged in sequence along the material belt direction; the first die-cutting unit comprises a first feeding assembly, a second feeding assembly, a first waste discharging assembly, a third feeding assembly, a first die-cutting assembly, a fourth feeding assembly, a second die-cuting assembly, a first turnover assembly, a first material collecting assembly, a second waste discharging assembly, a fifth feeding assembly, a third die-cutting assembly, a third waste discharging assembly, a second material collecting assembly and a first finished product winding assembly; the second die-cutting unit comprises a seventh feeding assembly, a fourth die-cutting assembly, a sixth feeding assembly, a second turnover assembly, a fifth waste discharging assembly, an eighth feeding assembly, a fifth die-cutting assembly, a sixth waste discharging assembly, a seventh waste discharging assembly and a second finished product winding assembly. Compared with the prior art, the application saves material and improves yield when PI film processing is carried out.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of die cutting, and particularly relates to a PI product material-saving die cutting device. BACKGROUND

[0002] PI film, also known as polyimide film, is a kind of film insulating material, which is yellow and transparent, and has a relative density of 1.39-1.45. The polyimide film has excellent high and low temperature resistance, electrical insulation, adhesion, radiation resistance and dielectric resistance, and can be used for a long time in a temperature range of -269 DEG C to 280 DEG C, and can reach a high temperature of 400 DEG C for a short time. The glass transition temperatures are 280 DEG C (Upilex R), 385 DEG C (Kapton) and above 500 DEG C (Upilex S) respectively. The tensile strength at 20 DEG C is 200 MPa, and the tensile strength at 200 DEG C is greater than 100 MPa. The polyimide film is particularly suitable for use as a flexible printed circuit board substrate and various high-temperature-resistant motor and electrical insulating materials.

[0003] As a kind of special engineering material, the polyimide film has been widely used in the fields of aviation, aerospace, electrical / electronic, microelectronic, nanometer, liquid crystal, separation membrane, laser, locomotive, automobile, precision machinery and automatic office machinery. With the rise and vigorous development of the IT industry, the flat panel display industry and the photovoltaic industry, the development of related supporting materials and the growth of market demand will be inevitably promoted. As an important material for sound quality circuit boards, integrated circuits, flat panel displays, solar cells and electronic tags, the electronic engineering (electronic grade) polyimide film plays a more and more important role in the above electronic product application fields.

[0004] As a high polymer material with great development potential, the polyimide has been fully recognized, and its application in insulating materials and structural materials is continuously expanding. In the aspect of functional materials, the polyimide is emerging, and its potential is still being explored. However, after 40 years of development, it has not become a larger variety, and the main reason is that the cost is still too high compared with other polymers.

[0005] Due to the relatively high cost of the PI film, if the utilization rate is not high during die cutting processing, the cost of each product will also be relatively high.

[0006] Nowadays, customers usually choose automatic patching in order to save labor cost and improve work efficiency. After using the automatic mode, the die cutting manufacturer is required to supply the material in the form of roll, and the gap between the products is also required. For example, the following PI product SUMMARY

[0007] The purpose of the present application is to overcome the defects of the prior art and provide a PI product material-saving die cutting device.

[0008] The object of the present application can be achieved by the following technical solutions:

[0009] The present application provides a PI product material-saving die cutting device, comprising a first die cutting unit and a second die cutting unit arranged in sequence along the direction of the material belt;

[0010] The first die cutting unit comprises a first feeding assembly, a second feeding assembly, a first waste removal assembly, a third feeding assembly, a first die cutting assembly, a fourth feeding assembly, a second die cutting assembly, a first turnover assembly, a first material receiving assembly, a second waste removal assembly, a fifth feeding assembly, a third die cutting assembly, a third waste removal assembly, a second material receiving assembly, and a first finished product winding assembly arranged in sequence along the direction of the material belt;

[0011] The second die cutting unit comprises a seventh feeding assembly, a fourth die cutting assembly, a sixth feeding assembly, a second turnover assembly, a fifth waste removal assembly, an eighth feeding assembly, a fifth die cutting assembly, a sixth waste removal assembly, a seventh waste removal assembly, and a second finished product winding assembly arranged in sequence along the direction of the material belt;

[0012] Among them, the first die cutting assembly, the second die cutting assembly, and the third die cutting assembly cut the PI product and wind the finished product through the first finished product winding assembly;

[0013] The seventh feeding assembly adheres the finished product wound by the first material receiving assembly, the second material receiving assembly, and the first finished product winding assembly to the material belt to form a first composite layer structure, and the fourth die cutting assembly cuts the first composite layer structure;

[0014] Among them, the knife lines of the fourth die cutting assembly and the knife lines of the first die cutting assembly are arranged staggered to meet the requirement that the holes punched out by the fourth die cutting assembly are located between the holes punched out by the first die cutting assembly.

[0015] Further, the first die cutting assembly comprises:

[0016] a first upper die assembly; and

[0017] a first lower die assembly;

[0018] The first upper die assembly comprises:

[0019] a first upper die assembly body; and

[0020] a plurality of rows of first knife lines arranged on the first upper die assembly body, which are in the shape of a rectangle;

[0021] The second die cutting assembly comprises knife lines for punching edge waste, which are in the shape of a straight line;

[0022] The third die cutting assembly comprises knife lines for punching edge waste, which are in the shape of a straight line;

[0023] The fourth die-cutting assembly comprises:

[0024] a fourth upper die set; and

[0025] a fourth lower die set;

[0026] The fourth upper die set comprises:

[0027] a fourth upper die set body; and

[0028] a plurality of rows of fourth knife lines arranged on the fourth upper die set body in a rectangular shape;

[0029] The fifth die-cutting assembly comprises knife lines for punching edge waste and in a straight line shape;

[0030] The first knife lines and the fourth knife lines are in the same shape, and the distance from the first knife lines to the edge of the first upper die set body perpendicular to the direction of the material belt is separated from the distance from the fourth knife lines to the edge of the fourth upper die set body perpendicular to the direction of the material belt by the width of the first knife lines or the fourth knife lines.

[0031] Further, the first feeding assembly comprises a first material feeding roller and a first material feeding roller drive motor in driving connection with the first material feeding roller, and the first feeding assembly feeds out the first auxiliary release film;

[0032] The second feeding assembly comprises a second material feeding roller and a second material feeding roller drive motor in driving connection with the second material feeding roller, and the second feeding assembly feeds out the first auxiliary protective film and the double-sided adhesive tape, and the double-sided adhesive tape and the first auxiliary release film are adhered to each other from top to bottom to form a composite layer structure of "double-sided adhesive tape-first auxiliary release film-first auxiliary protective film".

[0033] Further, the first waste removal assembly comprises a first waste removal roller and a first waste removal roller drive motor in driving connection with the first waste removal roller, and the first waste removal assembly is used for removing the original paper of the double-sided adhesive tape.

[0034] Further, the third feeding assembly comprises a third material feeding roller and a third material feeding roller drive motor in driving connection with the third material feeding roller, and the third feeding assembly feeds out the PI film, and the PI film, the double-sided adhesive tape, the first auxiliary release film and the first auxiliary protective film are adhered to each other from top to bottom to form a composite layer structure of "PI film-double-sided adhesive tape-first auxiliary release film-first auxiliary protective film".

[0035] Further, the fourth feeding assembly comprises a fourth material feeding roller and a fourth material feeding roller drive motor in driving connection with the fourth material feeding roller, and the fourth feeding assembly feeds out the second auxiliary protective film, and the second auxiliary protective film, the PI film, the double-sided adhesive tape, the first auxiliary release film and the first auxiliary protective film are adhered to each other from top to bottom to form a composite layer structure of "second auxiliary protective film-PI film-double-sided adhesive tape-first auxiliary release film-first auxiliary protective film".

[0036] Further, the first turnover assembly comprises a first turnover roller and a first turnover roller driving motor in driving connection with the first turnover roller, and the first turnover assembly turns over the material belt;

[0037] The first material collecting assembly comprises a first material collecting roller and a first material collecting roller driving motor in driving connection with the first material collecting roller, and the first material collecting assembly winds the first auxiliary material release film for standby;

[0038] The second waste discharging assembly comprises a second waste discharging roller and a second waste discharging roller driving motor in driving connection with the second waste discharging roller, and the second waste discharging assembly discharges the edge waste of the second auxiliary material protective film;

[0039] The fifth material feeding assembly comprises a fifth material feeding roller and a fifth material feeding roller driving motor in driving connection with the fifth material feeding roller, and the fifth material feeding assembly sends out the first material belt release film and mutually adheres from top to bottom to form a composite layer structure of “first material belt release film-double-sided adhesive film-PI film-second auxiliary material protective film”.

[0040] Further, the third waste discharging assembly comprises a third waste discharging roller and a third waste discharging roller driving motor in driving connection with the third waste discharging roller, and the third waste discharging assembly discharges the first material belt release film;

[0041] The second material collecting assembly comprises a second material collecting roller and a second material collecting roller driving motor in driving connection with the second material collecting roller, and the second material collecting assembly winds the second auxiliary material protective film for standby;

[0042] The first finished product winding assembly comprises a first finished product winding roller and a first finished product winding driving motor in driving connection with the first finished product winding roller, and the first finished product winding assembly winds the composite layer structure of “double-sided adhesive film-PI film”.

[0043] Further, the seventh material feeding assembly comprises a seventh material feeding roller and a seventh material feeding roller driving motor in driving connection with the seventh material feeding roller, and the seventh material feeding assembly sends out the first auxiliary material protective film wound by the first material collecting assembly, the second auxiliary material protective film wound by the second material collecting assembly, and the “double-sided adhesive film-PI film” wound by the first finished product winding assembly, and mutually adheres from top to bottom to form a first composite layer structure of “PI film-double-sided adhesive film-first auxiliary material release film-second auxiliary material protective film”;

[0044] The sixth material feeding assembly comprises a sixth material feeding roller and a sixth material feeding roller driving motor in driving connection with the sixth material feeding roller, and the sixth material feeding assembly sends out the third auxiliary material protective film;

[0045] The second turnover assembly comprises a second turnover roller and a second turnover roller driving motor in driving connection with the second turnover roller, and the second turnover assembly turns over the material belt;

[0046] The fifth waste discharge assembly comprises a fifth waste discharge roller and a fifth waste discharge roller driving motor in driving connection with the fifth waste discharge roller, and the fifth waste discharge assembly discharges the first auxiliary material release film and the second auxiliary material protective film;

[0047] The eighth material feeding assembly comprises an eighth material feeding roller and an eighth material feeding roller driving motor in driving connection with the eighth material feeding roller, and the eighth material feeding assembly sends out the second material belt release film and forms a composite layer structure of "second material belt release film-double-sided adhesive film-PI film-third auxiliary material protective film" by mutual adhesion from top to bottom.

[0048] Further, the sixth waste discharge assembly comprises a sixth waste discharge roller and a sixth waste discharge roller driving motor in driving connection with the sixth waste discharge roller, and the sixth waste discharge assembly discharges the second material belt release film;

[0049] The seventh waste discharge assembly comprises a seventh waste discharge roller and a seventh waste discharge roller driving motor in driving connection with the seventh waste discharge roller, and the seventh waste discharge assembly discharges the third auxiliary material protective film;

[0050] The second finished product winding assembly comprises a second finished product winding roller and a first finished product winding driving motor in driving connection with the first finished product winding roller, and the second finished product winding assembly winds the finished product;

[0051] The first die cutting unit and the second die cutting unit are arranged on two die cutting operation stations.

[0052] The working process of the present application is as follows:

[0053] Firstly, the first die cutting unit works, wherein the first material feeding roller driving motor controls the first material feeding roller to send out the first auxiliary material release film, the second material feeding roller driving motor controls the second material feeding roller to send out the first auxiliary material protective film and the double-sided adhesive film, and forms a composite layer structure of "double-sided adhesive film-first auxiliary material release film-first auxiliary material protective film" by mutual adhesion from top to bottom.

[0054] Then, the first waste discharge roller driving motor controls the first waste discharge roller to discharge the double-sided adhesive film raw paper, the third material feeding roller driving motor controls the third material feeding roller to send out the PI film and forms a composite layer structure of "PI film-double-sided adhesive film-first auxiliary material release film-first auxiliary material protective film" by mutual adhesion from top to bottom, and the fourth material feeding roller driving motor controls the fourth material feeding roller to send out the second auxiliary material protective film and forms a composite layer structure of "second auxiliary material protective film-PI film-double-sided adhesive film-first auxiliary material release film-first auxiliary material protective film" by mutual adhesion from top to bottom.

[0055] Then, the first turnover roller driving motor controls the first turnover roller to turn over the whole material belt, after turning over, the first material receiving roller driving motor controls the first material receiving roller to wind the first auxiliary material release film for standby, the second waste roller driving motor controls the second waste roller to remove the edge waste of the second auxiliary material protective film, the fifth material feeding roller driving motor controls the fifth material feeding roller to send out the first material belt release film, and mutually adhere from top to bottom to form the composite layer structure of "first material belt release film-double sided tape-PI film-second auxiliary material protective film", the third waste roller driving motor controls the third waste roller to remove the first material belt release film, the second material receiving roller driving motor controls the second material receiving roller to wind the second auxiliary material protective film for standby, and then the first finished product winding driving motor controls the first finished product winding roller to wind the composite layer structure of "double sided tape-PI film", at this time, if the punching is not continued, the PI film product has been punched.

[0056] In order to get greater yield and save material, the second die cutting unit works, the seventh material feeding roller driving motor controls the seventh material feeding roller to send out the first auxiliary material protective film wound by the first material receiving assembly, the second auxiliary material protective film wound by the second material receiving assembly, and the "double sided tape-PI film" wound by the first finished product winding assembly, and mutually adhere from top to bottom to form the first composite layer structure of "PI film-double sided tape-first auxiliary material release film-second auxiliary material protective film", the sixth material feeding roller driving motor controls the sixth material feeding roller to send out the third auxiliary material protective film, and the second turnover roller driving motor controls the second turnover roller to turn over the material belt.

[0057] Then, the fifth waste roller driving motor controls the fifth waste roller to remove the first auxiliary material release film and the second auxiliary material protective film, the eighth material feeding roller driving motor controls the eighth material feeding roller to send out the second material belt release film, and mutually adhere from top to bottom to form the composite layer structure of "second material belt release film-double sided tape-PI film-third auxiliary material protective film", the sixth waste roller driving motor controls the sixth waste roller to remove the second material belt release film, the seventh waste roller driving motor controls the seventh waste roller to remove the third auxiliary material protective film, and finally the first finished product winding driving motor controls the first finished product winding roller to wind the punched PI product.

[0058] Compared with the prior art, the present application has the following beneficial effects:

[0059] (1) The PI film, double sided tape, first auxiliary material protective film, and second auxiliary material protective film are repeatedly used, and the material is saved.

[0060] (2) The present application improves the material production efficiency and saves the material. BRIEF DESCRIPTION OF DRAWINGS

[0061] Figure 1 It is a structure schematic view of the first die cutting unit in Example 1.

[0062] Figure 2 Structure diagram of the second die cutting unit in Example 1.

[0063] Figure 3 Structure diagram of the first upper die set of the first die cutting assembly of the first die cutting unit in Example 1.

[0064] Figure 4 Structure diagram of the upper die set of the second die cutting assembly of the first die cutting unit in Example 1.

[0065] Figure 5 Structure diagram of the upper die set of the third die cutting assembly of the first die cutting unit in Example 1.

[0066] Figure 6 Structure diagram of the fourth upper die set of the fourth die cutting assembly of the second die cutting unit in Example 1.

[0067] Figure 7 Structure diagram of the upper die set of the fifth die cutting assembly of the first die cutting unit in Example 1.

[0068] Reference numerals in the drawings:

[0069] 100 - first die cutting unit, 1 - first feeding assembly, 2 - second feeding assembly, 3 - first waste discharging assembly, 4 - third feeding assembly, 5 - first die cutting assembly, 501 - first upper die set, 502 - first upper die set body, 503 first knife line, 6 - fourth feeding assembly, 7 - second die cutting assembly, 8 - first turnover assembly, 9 - first material collecting assembly, 10 - second waste discharging assembly, 24 - fifth feeding assembly, 11 - third die cutting assembly, 12 - third waste discharging assembly, 13 - second material collecting assembly, 14 - first finished product winding assembly, 200 - second die cutting unit, 25 - seventh feeding assembly, 15 - fourth die cutting assembly, 1501 - fourth upper die set, 1502 - fourth upper die set body, 1503 - fourth knife line, 16 - sixth feeding assembly, 17 - second turnover assembly, 18 - fifth waste discharging assembly, 19 - eighth feeding assembly, 20 - fifth die cutting assembly, 21 - sixth waste discharging assembly, 22 - seventh waste discharging assembly, 23 - second finished product winding assembly. DETAILED DESCRIPTION

[0070] The present application will be described in detail below with reference to the drawings and specific embodiments. The present embodiment is implemented on the basis of the technical solution of the present application, and detailed implementation modes and specific operation processes are given, but the protection scope of the present application is not limited to the following examples.

[0071] In the technical solution, the features such as part model, material name, connection structure, control method, etc. that are not explicitly described are considered as common technical features disclosed in the prior art.

[0072] In the description of the present application, it is to be understood by those skilled in the art that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0073] In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited. In addition, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected or integrally connected; it can be bolted, or it can be welded; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0074] In order to save materials and improve yield when processing PI film, the present application provides a PI product material-saving die cutting device, the structure of which is shown in Figures 1 to 7 The device includes a first die cutting unit 100 and a second die cutting unit 200 arranged in sequence along the direction of the material belt.

[0075] The first die cutting unit 100 includes a first feeding assembly 1, a second feeding assembly 2, a first waste discharge assembly 3, a third feeding assembly 4, a first die cutting assembly 5, a fourth feeding assembly 6, a second die cutting assembly 7, a first turnover assembly 8, a first material receiving assembly 9, a second waste discharge assembly 10, a fifth feeding assembly 24, a third die cutting assembly 11, a third waste discharge assembly 12, a second material receiving assembly 13, and a first finished product winding assembly 14 arranged in sequence along the direction of the material belt.

[0076] The second die cutting unit 200 includes a seventh feeding assembly 25, a fourth die cutting assembly 15, a sixth feeding assembly 16, a second turnover assembly 17, a fifth waste discharge assembly 18, an eighth feeding assembly 19, a fifth die cutting assembly 20, a sixth waste discharge assembly 21, a seventh waste discharge assembly 22, and a second finished product winding assembly 23 arranged in sequence along the direction of the material belt.

[0077] Among them, the first die cutting assembly 5, the second die cutting assembly 7, and the third die cutting assembly 11 cut out the PI product and wind the finished product through the first finished product winding assembly 14;

[0078] The seventh feeding assembly 25 adheres the finished product wound by the first material receiving assembly 9, the second material receiving assembly 13, and the first finished product winding assembly 14 to the material belt to form a first composite layer structure, and the fourth die cutting assembly 15 cuts the first composite layer structure.

[0079] The knife lines of the fourth die-cutting assembly 15 are staggered with the knife lines of the first die-cutting assembly 5 to meet the requirement that the holes punched out by the fourth die-cutting assembly 15 are located between the holes punched by the first die-cutting assembly 5.

[0080] In some specific embodiments, please refer to Figures 1 to 7 As shown, the first die-cutting assembly 5 comprises:

[0081] a first upper die set 501; and

[0082] a first lower die set;

[0083] The first upper die set 501 comprises:

[0084] a first upper die set body 502; and

[0085] a plurality of rows of first knife lines 503 arranged on the first upper die set body 502 in a rectangular shape;

[0086] The second die-cutting assembly 7 comprises knife lines for punching edge waste in a straight line shape;

[0087] The third die-cutting assembly 11 comprises knife lines for punching edge waste in a straight line shape;

[0088] The fourth die-cutting assembly 15 comprises:

[0089] a fourth upper die set 1501; and

[0090] a fourth lower die set;

[0091] The fourth upper die set 1501 comprises:

[0092] a fourth upper die set body 1502; and

[0093] a plurality of rows of fourth knife lines 1503 arranged on the fourth upper die set body 1502 in a rectangular shape;

[0094] The fifth die-cutting assembly 20 comprises knife lines for punching edge waste in a straight line shape;

[0095] The first knife lines 503 and the fourth knife lines 1503 are in the same shape, and the distance from the first knife lines 503 to the edge of the first upper die set body 502 perpendicular to the direction of the material belt is separated from the distance from the fourth knife lines 1503 to the edge of the fourth upper die set body 1502 perpendicular to the direction of the material belt by the width of the first knife lines 503 or the fourth knife lines 1503.

[0096] In some specific embodiments, please refer to Figure 1As shown, the first feeding assembly 1 includes a first material feeding roller and a first material feeding roller drive motor in driving connection with the first material feeding roller, and the first feeding assembly 1 feeds out the first auxiliary material release film;

[0097] The second feeding assembly 2 includes a second material feeding roller and a second material feeding roller drive motor in driving connection with the second material feeding roller, and the second feeding assembly 2 feeds out the first auxiliary material protective film and the double-sided adhesive tape, and the double-sided adhesive tape and the first auxiliary material release film are adhered to each other from top to bottom to form a composite layer structure of “double-sided adhesive tape-first auxiliary material release film-first auxiliary material protective film”.

[0098] In some specific embodiments, please refer to Figure 1 As shown, the first waste discharge assembly 3 includes a first waste discharge roller and a first waste discharge roller drive motor in driving connection with the first waste discharge roller, and the first waste discharge assembly 3 is used to discharge the double-sided adhesive tape raw paper.

[0099] In some specific embodiments, please refer to Figure 1 As shown, the third feeding assembly 4 includes a third material feeding roller and a third material feeding roller drive motor in driving connection with the third material feeding roller, and the third feeding assembly 4 feeds out the PI film, and the PI film, the double-sided adhesive tape, the first auxiliary material release film and the first auxiliary material protective film are adhered to each other from top to bottom to form a composite layer structure of “PI film-double-sided adhesive tape-first auxiliary material release film-first auxiliary material protective film”.

[0100] In some specific embodiments, please refer to Figure 1 As shown, the fourth feeding assembly 6 includes a fourth material feeding roller and a fourth material feeding roller drive motor in driving connection with the fourth material feeding roller, and the fourth feeding assembly 6 feeds out the second auxiliary material protective film, and the second auxiliary material protective film, the PI film, the double-sided adhesive tape, the first auxiliary material release film and the first auxiliary material protective film are adhered to each other from top to bottom to form a composite layer structure of “second auxiliary material protective film-PI film-double-sided adhesive tape-first auxiliary material release film-first auxiliary material protective film”.

[0101] In some specific embodiments, please refer to Figure 1 As shown, the first turnover assembly 8 includes a first turnover roller and a first turnover roller drive motor in driving connection with the first turnover roller, and the first turnover assembly 8 turns over the material belt;

[0102] The first material collecting assembly 9 includes a first material collecting roller and a first material collecting roller drive motor in driving connection with the first material collecting roller, and the first material collecting assembly 9 winds the first auxiliary material release film for standby use;

[0103] The second waste discharge assembly 10 includes a second waste discharge roller and a second waste discharge roller drive motor in driving connection with the second waste discharge roller, and the second waste discharge assembly 10 discharges the second auxiliary material protective film edge waste;

[0104] The fifth feeding assembly 24 comprises a fifth material feeding roller and a fifth material feeding roller driving motor in driving connection with the fifth material feeding roller. The fifth feeding assembly 10 sends out the first material tape release film and forms a composite layer structure of "first material tape release film-double-sided adhesive tape-PI film-second auxiliary material protective film" by mutual lamination from top to bottom.

[0105] In some specific embodiments, please refer to Figure 1 As shown, the third waste discharging assembly 12 comprises a third waste discharging roller and a third waste discharging roller driving motor in driving connection with the third waste discharging roller. The third waste discharging assembly 12 discharges the first material tape release film.

[0106] The second material collecting assembly 13 comprises a second material collecting roller and a second material collecting roller driving motor in driving connection with the second material collecting roller. The second material collecting assembly 13 winds the second auxiliary material protective film for standby use.

[0107] The first finished product winding assembly 14 comprises a first finished product winding roller and a first finished product winding driving motor in driving connection with the first finished product winding roller. The first finished product winding assembly 14 winds the composite layer structure of "double-sided adhesive tape-PI film".

[0108] In some specific embodiments, please refer to Figure 1 As shown, the seventh feeding assembly 25 comprises a seventh material feeding roller and a seventh material feeding roller driving motor in driving connection with the seventh material feeding roller. The seventh feeding assembly 25 sends out the first auxiliary material protective film wound by the first material collecting assembly 9, the second auxiliary material protective film wound by the second material collecting assembly 13 and the "double-sided adhesive tape-PI film" wound by the first finished product winding assembly 14, and forms a first composite layer structure of "PI film-double-sided adhesive tape-first auxiliary material release film-second auxiliary material protective film" by mutual lamination from top to bottom.

[0109] The sixth feeding assembly 16 comprises a sixth material feeding roller and a sixth material feeding roller driving motor in driving connection with the sixth material feeding roller. The sixth feeding assembly 16 sends out the third auxiliary material protective film.

[0110] The second turnover assembly 17 comprises a second turnover roller and a second turnover roller driving motor in driving connection with the second turnover roller. The second turnover assembly 17 turns over the material tape.

[0111] The fifth waste discharging assembly 18 comprises a fifth waste discharging roller and a fifth waste discharging roller driving motor in driving connection with the fifth waste discharging roller. The fifth waste discharging assembly 18 discharges the first auxiliary material release film and the second auxiliary material protective film.

[0112] The eighth feeding assembly 19 comprises an eighth material feeding roller and an eighth material feeding roller driving motor in driving connection with the eighth material feeding roller. The eighth feeding assembly 19 sends out the second material tape release film and forms a composite layer structure of "second material tape release film-double-sided adhesive tape-PI film-third auxiliary material protective film" by mutual lamination from top to bottom.

[0113] In some specific embodiments, referring again to Figure 2 The sixth waste discharge assembly 21 comprises a sixth waste discharge roller and a sixth waste discharge roller driving motor in driving connection with the sixth waste discharge roller. The sixth waste discharge assembly 21 discharges the second material tape release film.

[0114] The seventh waste discharge assembly 22 comprises a seventh waste discharge roller and a seventh waste discharge roller driving motor in driving connection with the seventh waste discharge roller. The seventh waste discharge assembly 22 discharges the third auxiliary material protective film.

[0115] The second finished product winding assembly 23 comprises a second finished product winding roller and a first finished product winding driving motor in driving connection with the first finished product winding roller. The second finished product winding assembly 23 winds the finished product.

[0116] The first die cutting unit 100 and the second die cutting unit 200 are arranged on two die cutting work stations.

[0117] The above embodiments can be implemented individually or in any two or more combinations.

[0118] The above embodiments will be described in more detail below in combination with specific examples.

[0119] Embodiment 1

[0120] In order to save materials and improve yield during PI film processing, the present embodiment provides a PI product material-saving die cutting device. The structure thereof is shown in Figure 2 The first die cutting unit 100 and the second die cutting unit 200 are arranged in sequence along the material tape direction.

[0121] The first die cutting unit 100 comprises a first feeding assembly 1, a second feeding assembly 2, a first waste discharge assembly 3, a third feeding assembly 4, a first die cutting assembly 5, a fourth feeding assembly 6, a second die cutting assembly 7, a first turnover assembly 8, a first material receiving assembly 9, a second waste discharge assembly 10, a fifth feeding assembly 24, a third die cutting assembly 11, a third waste discharge assembly 12, a second material receiving assembly 13, and a first finished product winding assembly 14 arranged in sequence along the material tape direction.

[0122] The second die-cutting unit 200 comprises, in sequence along the material tape direction, a seventh feeding assembly 25, a fourth die-cutting assembly 15, a sixth feeding assembly 16, a second turnover assembly 17, a fifth waste-removing assembly 18, an eighth feeding assembly 19, a fifth die-cutting assembly 20, a sixth waste-removing assembly 21, a seventh waste-removing assembly 22, and a second finished product winding assembly 23;

[0123] The first die-cutting assembly 5, the second die-cutting assembly 7, and the third die-cutting assembly 11 cut out the PI product and the finished product is wound by the first finished product winding assembly 14;

[0124] The seventh feeding assembly 25 adheres the finished product wound by the first material winding assembly 9, the second material winding assembly 13, and the first finished product winding assembly 14 to the material tape to form a first composite layer structure, and the fourth die-cutting assembly 15 cuts the first composite layer structure;

[0125] The knife lines of the fourth die-cutting assembly 15 are arranged staggeredly with the knife lines of the first die-cutting assembly 5 to satisfy that the material piece holes punched out by the fourth die-cutting assembly 15 are located between the material piece holes punched by the first die-cutting assembly 5.

[0126] Please refer to Figures 1 to 7 As shown in the figure, the first die-cutting assembly 5 comprises:

[0127] a first upper die set 501; and

[0128] a first lower die set;

[0129] The first upper die set 501 comprises:

[0130] a first upper die set body 502; and

[0131] a plurality of rows of first knife lines 503 arranged on the first upper die set body 502, which are in a rectangular shape;

[0132] The second die-cutting assembly 7 comprises knife lines for punching edge waste, which are in a straight line shape;

[0133] The third die-cutting assembly 11 comprises knife lines for punching edge waste, which are in a straight line shape;

[0134] The fourth die-cutting assembly 15 comprises:

[0135] a fourth upper die set 1501; and

[0136] a fourth lower die set;

[0137] The fourth upper die set 1501 comprises:

[0138] a fourth upper die set body 1502; and

[0139] a plurality of rows of fourth knife lines 1503 arranged on the fourth upper die set body 1502, which are in a rectangular shape;

[0140] The fifth die-cutting assembly 20 includes a straight-line-shaped knife line for punching the edge waste;

[0141] The first knife line 503 and the fourth knife line 1503 are shaped identically, and the distance from the first knife line 503 to the edge of the first upper die set body 502 perpendicular to the direction of the material belt is separated from the distance from the fourth knife line 1503 to the edge of the fourth upper die set body 1502 perpendicular to the direction of the material belt by the width of the first knife line 503 or the fourth knife line 1503.

[0142] Please refer to Figures 1 to 7 As shown, the first feeding assembly 1 includes a first material feeding roller and a first material feeding roller drive motor in driving connection with the first material feeding roller, and the first feeding assembly 1 sends out the first auxiliary release film;

[0143] The second feeding assembly 2 includes a second material feeding roller and a second material feeding roller drive motor in driving connection with the second material feeding roller, and the second feeding assembly 2 sends out the first auxiliary protective film and the double-sided adhesive tape, and the double-sided adhesive tape and the first auxiliary release film are adhered to each other from top to bottom to form a composite layer structure of “double-sided adhesive tape-first auxiliary release film-first auxiliary protective film”.

[0144] Please refer to Figure 1 As shown, the first waste removal assembly 3 includes a first waste removal roller and a first waste removal roller drive motor in driving connection with the first waste removal roller, and the first waste removal assembly 3 is used for removing the original paper of the double-sided adhesive tape.

[0145] Please refer to Figure 1 As shown, the third feeding assembly 4 includes a third material feeding roller and a third material feeding roller drive motor in driving connection with the third material feeding roller, and the third feeding assembly 4 sends out the PI film, and the PI film, the double-sided adhesive tape, the first auxiliary release film, and the first auxiliary protective film are adhered to each other from top to bottom to form a composite layer structure of “PI film-double-sided adhesive tape-first auxiliary release film-first auxiliary protective film”.

[0146] Please refer to Figure 1 As shown, the fourth feeding assembly 6 includes a fourth material feeding roller and a fourth material feeding roller drive motor in driving connection with the fourth material feeding roller, and the fourth feeding assembly 6 sends out the second auxiliary protective film, and the second auxiliary protective film, the PI film, the double-sided adhesive tape, the first auxiliary release film, and the first auxiliary protective film are adhered to each other from top to bottom to form a composite layer structure of “second auxiliary protective film-PI film-double-sided adhesive tape-first auxiliary release film-first auxiliary protective film”.

[0147] Please refer to Figure 1 As shown, the first turnover assembly 8 includes a first turnover roller and a first turnover roller drive motor in driving connection with the first turnover roller, and the first turnover assembly 8 turns over the material belt;

[0148] The first material receiving assembly 9 comprises a first material receiving roller and a first material receiving roller driving motor in driving connection with the first material receiving roller. The first material receiving assembly 9 winds the first auxiliary release film for standby;

[0149] The second waste discharging assembly 10 comprises a second waste discharging roller and a second waste discharging roller driving motor in driving connection with the second waste discharging roller. The second waste discharging assembly 10 discharges the edge waste of the second auxiliary protective film;

[0150] The fifth material feeding assembly 24 comprises a fifth material feeding roller and a fifth material feeding roller driving motor in driving connection with the fifth material feeding roller. The fifth material feeding assembly 10 feeds out the first material belt release film and mutually laminates from top to bottom to form a composite layer structure of “first material belt release film-double-sided adhesive film-PI film-second auxiliary protective film”.

[0151] Please refer to Figure 1 As shown, the third waste discharging assembly 12 comprises a third waste discharging roller and a third waste discharging roller driving motor in driving connection with the third waste discharging roller. The third waste discharging assembly 12 discharges the first material belt release film;

[0152] The second material receiving assembly 13 comprises a second material receiving roller and a second material receiving roller driving motor in driving connection with the second material receiving roller. The second material receiving assembly 13 winds the second auxiliary protective film for standby;

[0153] The first finished product winding assembly 14 comprises a first finished product winding roller and a first finished product winding driving motor in driving connection with the first finished product winding roller. The first finished product winding assembly 14 winds the composite layer structure of “double-sided adhesive film-PI film”.

[0154] Please refer to Figure 1 As shown, the seventh material feeding assembly 25 comprises a seventh material feeding roller and a seventh material feeding roller driving motor in driving connection with the seventh material feeding roller. The seventh material feeding assembly 25 feeds out the first auxiliary protective film wound by the first material receiving assembly 9, the second auxiliary protective film wound by the second material receiving assembly 13, and the “double-sided adhesive film-PI film” wound by the first finished product winding assembly 14, and mutually laminates from top to bottom to form a first composite layer structure of “PI film-double-sided adhesive film-first auxiliary release film-second auxiliary protective film”;

[0155] The sixth material feeding assembly 16 comprises a sixth material feeding roller and a sixth material feeding roller driving motor in driving connection with the sixth material feeding roller. The sixth material feeding assembly 16 feeds out the third auxiliary protective film;

[0156] The second turnover assembly 17 comprises a second turnover roller and a second turnover roller driving motor in driving connection with the second turnover roller. The second turnover assembly 17 turns over the material belt;

[0157] The fifth waste component 18 includes a fifth waste roller and a fifth waste roller driving motor in driving connection with the fifth waste roller, and the fifth waste component 18 removes the first auxiliary material release film and the second auxiliary material protective film.

[0158] The eighth material feeding component 19 includes an eighth material feeding roller and an eighth material feeding roller driving motor in driving connection with the eighth material feeding roller, and the eighth material feeding component 19 feeds out the second material belt release film and is self-adhered from top to bottom to form a composite layer structure of “second material belt release film-double-sided adhesive-PI film-third auxiliary material protective film”.

[0159] Please refer to Figure 2 Figure 2 As shown, the sixth waste component 21 includes a sixth waste roller and a sixth waste roller driving motor in driving connection with the sixth waste roller, and the sixth waste component 21 removes the second material belt release film.

[0160] The seventh waste component 22 includes a seventh waste roller and a seventh waste roller driving motor in driving connection with the seventh waste roller, and the seventh waste component 22 removes the third auxiliary material protective film.

[0161] The second finished product winding component 23 includes a second finished product winding roller and a first finished product winding driving motor in driving connection with the first finished product winding roller, and the second finished product winding component 23 winds the finished product.

[0162] The first die cutting unit 100 and the second die cutting unit 200 are arranged on two die cutting operation stations.

[0163] The working process of the embodiment is as follows:

[0164] First, the first die cutting unit 100 works, wherein the first material feeding roller driving motor controls the first material feeding roller to feed out the first auxiliary material release film, the second material feeding roller driving motor controls the second material feeding roller to feed out the first auxiliary material protective film and the double-sided adhesive, and the double-sided adhesive is self-adhered from top to bottom to form a composite layer structure of “double-sided adhesive-first auxiliary material release film-first auxiliary material protective film”.

[0165] Then, the first waste roller driving motor controls the first waste roller to remove the double-sided adhesive raw paper, the third material feeding roller driving motor controls the third material feeding roller to feed out the PI film and self-adhere from top to bottom to form a composite layer structure of “PI film-double-sided adhesive-first auxiliary material release film-first auxiliary material protective film”, and the fourth material feeding roller driving motor controls the fourth material feeding roller to feed out the second auxiliary material protective film and self-adhere from top to bottom to form a composite layer structure of “second auxiliary material protective film-PI film-double-sided adhesive-first auxiliary material release film-first auxiliary material protective film”.

[0166] Then, the first turnover roller driving motor controls the first turnover roller to turn over the whole material belt. After turning over, the first material receiving roller driving motor controls the first material receiving roller to wind the first auxiliary material release film for standby, the second waste roller driving motor controls the second waste roller to remove the edge waste of the second auxiliary material protective film, the fifth material feeding roller driving motor controls the fifth material feeding roller to send out the first material belt release film and mutually adhere from top to bottom to form the composite layer structure of "first material belt release film-double sided adhesive tape-PI film-second auxiliary material protective film", the third waste roller driving motor controls the third waste roller to remove the first material belt release film, the second material receiving roller driving motor controls the second material receiving roller to wind the second auxiliary material protective film for standby, and then the first finished product winding driving motor controls the first finished product winding roller to wind the composite layer structure of "double sided adhesive tape-PI film". At this time, if the punching is not continued, the PI film product has been punched.

[0167] In order to obtain greater yield and save material, the second die cutting unit 200 works, the seventh material feeding roller driving motor controls the seventh material feeding roller to send out the first auxiliary material protective film wound by the first material receiving assembly 9, the second auxiliary material protective film wound by the second material receiving assembly 13, and the "double sided adhesive tape-PI film" wound by the first finished product winding assembly 14, and mutually adhere from top to bottom to form the first composite layer structure of "PI film-double sided adhesive tape-first auxiliary material release film-second auxiliary material protective film", the sixth material feeding roller driving motor controls the sixth material feeding roller to send out the third auxiliary material protective film, and the second turnover roller driving motor controls the second turnover roller to turn over the material belt.

[0168] Then, the fifth waste roller driving motor controls the fifth waste roller to remove the first auxiliary material release film and the second auxiliary material protective film, the eighth material feeding roller driving motor controls the eighth material feeding roller to send out the second material belt release film and mutually adhere from top to bottom to form the composite layer structure of "second material belt release film-double sided adhesive tape-PI film-third auxiliary material protective film", the sixth waste roller driving motor controls the sixth waste roller to remove the second material belt release film, the seventh waste roller driving motor controls the seventh waste roller to remove the third auxiliary material protective film, and finally the first finished product winding driving motor controls the first finished product winding roller to wind the punched PI product.

[0169] The above description of the embodiments is to facilitate the ordinary skilled person in the art to understand and use the invention. The person skilled in the art can obviously easily make various modifications to these embodiments, and apply the general principles described herein to other embodiments without having to go through creative labor. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by the person skilled in the art according to the disclosure of the present invention should be within the scope of protection of the present invention.

Claims

1. A material-saving die-cutting device for PI products, characterized in that, It includes a first die-cutting unit (100) and a second die-cutting unit (200) arranged sequentially along the material strip direction; The first die-cutting unit (100) includes a first feeding assembly (1), a second feeding assembly (2), a first waste removal assembly (3), a third feeding assembly (4), a first die-cutting assembly (5), a fourth feeding assembly (6), a second die-cutting assembly (7), a first flipping assembly (8), a first take-up assembly (9), a second waste removal assembly (10), a fifth feeding assembly (24), a third die-cutting assembly (11), a third waste removal assembly (12), a second take-up assembly (13), and a first finished product winding assembly (14) arranged sequentially along the material strip direction. The second die-cutting unit (200) includes a seventh feeding assembly (25), a fourth die-cutting assembly (15), a sixth feeding assembly (16), a second flipping assembly (17), a fifth waste removal assembly (18), an eighth feeding assembly (19), a fifth die-cutting assembly (20), a sixth waste removal assembly (21), a seventh waste removal assembly (22), and a second finished product winding assembly (23) arranged sequentially along the material strip direction. The first die-cutting component (5), the second die-cutting component (7), and the third die-cutting component (11) die-cut PI products and then rewind the finished products using the first finished product winding component (14). The seventh feeding component (25) attaches the finished product wound by the first receiving component (9), the second receiving component (13), and the first finished product winding component (14) onto the material strip to form a first composite layer structure, and the fourth die-cutting component (15) performs die-cutting on the first composite layer structure. The cutting lines of the fourth die-cutting component (15) are staggered with those of the first die-cutting component (5) to ensure that the part holes punched by the fourth die-cutting component (15) are located between the part holes punched by the first die-cutting component (5).

2. The PI product material-saving die-cutting device according to claim 1, characterized in that, The first die-cutting component (5) includes: First upper module (501); and First module; The first upper module (501) includes: First upper module body (502); and A plurality of rows of first cutting lines (503) are provided on the first upper module body (502), which are rectangular in shape; The second die-cutting assembly (7) includes a straight cutting edge for punching out edge waste; The third die-cutting assembly (11) includes a straight cutting edge for punching out edge waste; The fourth die-cutting component (15) includes: Fourth upper module (1501); and Fourth module; The fourth upper module (1501) includes: Fourth upper module body (1502); and A plurality of rows of fourth cutting lines (1503) are provided on the fourth upper module body (1502), which are rectangular in shape; The fifth die-cutting assembly (20) includes a straight cutting edge for punching out edge waste; The first cutting line (503) and the fourth cutting line (1503) have the same shape, and the distance from the first cutting line (503) to the edge of the first upper module body (502) perpendicular to the strip direction is the same as the distance from the fourth cutting line (1503) to the edge of the fourth upper module body (1502) perpendicular to the strip direction, which is separated by the width of the first cutting line (503) or the fourth cutting line (1503).

3. The PI product material-saving die-cutting device according to claim 1, characterized in that, The first feeding assembly (1) includes a first material feeding roller and a first material feeding roller drive motor that is connected to the first material feeding roller in a transmission. The first feeding assembly (1) feeds out the first auxiliary material release film. The second feeding assembly (2) includes a second material feeding roller and a second material feeding roller drive motor that is connected to the second material feeding roller. The second feeding assembly (2) feeds out a first auxiliary material protective film and double-sided adhesive, and they are bonded together from top to bottom to form a composite layer structure of "double-sided adhesive - first auxiliary material release film - first auxiliary material protective film".

4. The PI product material-saving die-cutting device according to claim 1, characterized in that, The first waste removal component (3) includes a first waste removal roller and a first waste removal roller drive motor that is connected to the first waste removal roller. The first waste removal component (3) is used to remove double-sided adhesive paper.

5. The PI product material-saving die-cutting device according to claim 1, characterized in that, The third feeding assembly (4) includes a third material feeding roller and a third material feeding roller drive motor that is connected to the third material feeding roller. The third feeding assembly (4) feeds out PI film and they are bonded together from top to bottom to form a composite layer structure of "PI film-double-sided adhesive-first auxiliary material release film-first auxiliary material protective film".

6. The PI product material-saving die-cutting device according to claim 1, characterized in that, The fourth feeding assembly (6) includes a fourth material feeding roller and a fourth material feeding roller drive motor that is connected to the fourth material feeding roller. The fourth feeding assembly (6) feeds out the second auxiliary material protective film and they are bonded together from top to bottom to form a composite layer structure of "second auxiliary material protective film-PI film-double-sided adhesive-first auxiliary material release film-first auxiliary material protective film".

7. The PI product material-saving die-cutting device according to claim 1, characterized in that, The first flipping assembly (8) includes a first flipping roller and a first flipping roller drive motor that is connected to the first flipping roller in a transmission. The first flipping assembly (8) flips the material strip. The first receiving assembly (9) includes a first receiving roller and a first receiving roller drive motor that is connected to the first receiving roller in a transmission. The first receiving assembly (9) winds up the first auxiliary release film for later use. The second waste discharge assembly (10) includes a second waste discharge roller and a second waste discharge roller drive motor that is connected to the second waste discharge roller in a transmission manner. The second waste discharge assembly (10) discharges waste material from the edge of the second auxiliary material protective film. The fifth feeding assembly (24) includes a fifth material feeding roller and a fifth material feeding roller drive motor that is connected to the fifth material feeding roller. The fifth feeding assembly (24) feeds out the first material strip release film and they are bonded together from top to bottom to form a composite layer structure of "first material strip release film-double-sided adhesive-PI film-second auxiliary material protective film".

8. A material-saving die-cutting device for PI products according to claim 1, characterized in that, The third waste removal assembly (12) includes a third waste removal roller and a third waste removal roller drive motor that is connected to the third waste removal roller in a transmission. The third waste removal assembly (12) removes the first material strip release film. The second receiving assembly (13) includes a second receiving roller and a second receiving roller drive motor that is connected to the second receiving roller drive motor. The second receiving assembly (13) winds up the second auxiliary material protective film for later use. The first finished product winding assembly (14) includes a first finished product winding roller and a first finished product winding drive motor that is connected to the first finished product winding roller. The first finished product winding assembly (14) is wound into a composite layer structure of "double-sided adhesive-PI film".

9. A material-saving die-cutting device for PI products according to claim 1, characterized in that, The seventh feeding assembly (25) includes a seventh material feeding roller and a seventh material feeding roller drive motor connected to the seventh material feeding roller. The seventh feeding assembly (25) feeds out the first auxiliary material protective film wound by the first receiving assembly (9), the second auxiliary material protective film wound by the second receiving assembly (13), and the "double-sided adhesive-PI film" wound by the first finished product receiving assembly (14), and they are bonded together from top to bottom to form a first composite layer structure of "PI film-double-sided adhesive-first auxiliary material release film-second auxiliary material protective film". The sixth feeding assembly (16) includes a sixth material feeding roller and a sixth material feeding roller drive motor that is connected to the sixth material feeding roller in a transmission. The sixth feeding assembly (16) feeds out the third auxiliary material protective film. The second flipping assembly (17) includes a second flipping roller and a second flipping roller drive motor that is connected to the second flipping roller in a transmission. The second flipping assembly (17) flips the material strip. The fifth waste removal assembly (18) includes a fifth waste removal roller and a fifth waste removal roller drive motor that is connected to the fifth waste removal roller in a transmission. The fifth waste removal assembly (18) removes the first auxiliary material release film and the second auxiliary material protective film. The eighth feeding assembly (19) includes an eighth material feeding roller and an eighth material feeding roller drive motor that is connected to the eighth material feeding roller. The eighth feeding assembly (19) feeds out the second material strip release film and they are bonded together from top to bottom to form a composite layer structure of "second material strip release film - double-sided adhesive - PI film - third auxiliary material protective film".

10. A material-saving die-cutting device for PI products according to claim 1, characterized in that, The sixth waste removal assembly (21) includes a sixth waste removal roller and a sixth waste removal roller drive motor that is connected to the sixth waste removal roller in a transmission. The sixth waste removal assembly (21) removes the second material strip release film. The seventh waste removal component (22) includes a seventh waste removal roller and a seventh waste removal roller drive motor that is connected to the seventh waste removal roller in a transmission. The seventh waste removal component (22) removes the third auxiliary material protective film. The second finished product winding assembly (23) includes a second finished product winding roller, and the second finished product winding assembly (23) winds up the finished product; The first die-cutting unit (100) and the second die-cutting unit (200) are located on two die-cutting workstations.

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