CN215471660U

CN215471660U - FPC cutting die

Info

Publication number: CN215471660U
Application number: CN202121493916.7U
Authority: CN
Inventors: 付迪飞; 徐贤强; 潘连兴
Original assignee: Shenzhen Australis Electronic Technology Co Ltd
Current assignee: Shenzhen Australis Electronic Technology Co Ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2022-01-11
Anticipated expiration: 2031-07-01

Abstract

The utility model discloses an FPC cutting die which is used for cutting an FPC board, wherein a plurality of FPC elements are arranged on the FPC board, and installation parts for installing LED lamps are arranged on the FPC elements. The FPC cutting die can avoid the uneven appearance of a cut product, and improves the cutting quality and the yield.

Description

FPC cutting die

Technical Field

The utility model relates to the technical field of FPC cutting, in particular to an FPC cutting die.

Background

The FPC (Flexible Printed Circuit), namely a flexible circuit board, is suitable for the fields of MP3, DVD, digital cameras, mobile phone medical treatment, automobiles, aerospace and the like, and has the characteristics of free bending, folding, winding, small volume, thinness, random movement, stretching and the like. In the related technology, the FPC is cut in a mode of pressing and cutting by a male die and a female die, and the FPC is subjected to subsequent processing such as rubberizing after cutting. By adopting the method, the appearance of the product is uneven, and the yield is low.

The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an FPC cutting die, and aims to solve the technical problems that the existing cutting mode can cause uneven appearance of a product and low yield.

In order to achieve the purpose, the utility model provides an FPC cutting die which is used for cutting an FPC board, wherein a plurality of FPC elements are arranged on the FPC board, and installation parts for installing LED lamps are arranged on the FPC elements. The FPC cutting die comprises a die frame, a first die and a second die. The first die is arranged on the die frame, and the first die is provided with a cutting knife. The second mould is located on the die carrier, the second mould is located the first mould is close to one side of cutting the sword, be equipped with a plurality of grooves of dodging on the second mould, dodge the groove with the installation department corresponds the setting.

Optionally, the avoidance groove is a strip-shaped groove extending along a first direction, and the first direction and the horizontal direction are arranged at an included angle.

Optionally, the mold frame is provided with a positioning column, the first mold is provided with a first positioning hole, the second mold is provided with a second positioning hole, the first positioning hole and the second positioning hole are correspondingly arranged, and the positioning column penetrates through the first positioning hole and the second positioning hole.

Optionally, the die carrier is provided with a positioning needle, the second die is provided with a first through hole for the positioning needle to pass through, and the first die is provided with an avoiding hole for avoiding the positioning needle.

Optionally, the formwork further includes a first mounting frame and a second mounting frame, the first mounting frame is movably connected with the second mounting frame, the first mounting frame is movable up and down relative to the second mounting frame, the first mold is detachably mounted on the first mounting frame, and the second mold is detachably mounted on the second mounting frame.

Optionally, the first die is provided with a first threaded hole, the first mounting frame is provided with a second threaded hole, and a first bolt is inserted into the first threaded hole and the second threaded hole to fix the first die and the first mounting frame;

and/or a third threaded hole is formed in the second die, a fourth threaded hole is formed in the second mounting frame, and a second bolt is inserted into the third threaded hole and the fourth threaded hole to fix the second die and the second mounting frame.

Optionally, when the FPC cutting die cuts, a gap is formed between the cutting knife and the second die.

Optionally, a gap between the cutting knife and the second die is 0.1mm to 0.3 mm.

Optionally, the FPC component is equipped with electric connection portion, the sword that cuts includes first cutting portion and second cutting portion, the shape of first cutting portion with the shape of installation department is imitative, the shape of second cutting portion with the shape of electric connection portion is imitative.

Optionally, the cutting blade is a single peak blade, and/or the cutting blade is a double peak blade.

The FPC cutting die comprises a die frame, a first die and a second die, wherein the first die is arranged on the die frame, and a cutting knife is arranged on the first die; the second die is arranged on the die frame, the second die is positioned on one side of the first die close to the cutting knife, and an avoidance groove is formed in the second die; so, dodge the groove through setting up on the second mould for dodge the LED lamp on the FPC board, make what FPC board can lay on the second mould levels relatively, thereby makes the product that cuts out level and smooth, has avoided the product outward appearance after cutting to appear unevenness's phenomenon, has promoted quality, the yields of product.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an FPC cutting mold according to the present invention;

FIG. 2 is a schematic structural diagram of a first mold of the FPC cutting mold according to the present invention;

FIG. 3 is a schematic structural diagram of a second mold of the FPC cutting mold according to the present invention;

FIG. 4 is a schematic view of an FPC board;

FIG. 5 is a schematic view of a FPC component product;

fig. 6 is a sectional structural view of the product shown in fig. 5.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name (R)
						100	FPC cutting die	121	Dodging groove	160	FPC board
110	First die	122	Second positioning hole	161	Positioning pinhole
						111	Cutting knife	123	First through hole	170	FPC component
111a	First cut part	124	Third threaded hole	171	Electrical connection part
						111b	Second cut part	130	Die carrier	172	Mounting part
112	A first positioning hole	131	First mounting rack	173	Sub-mount
						113	Avoiding hole	132	Second mounting rack	174	FPC adhesive
114	First screw hole	140	Guide post
						120	Second mold	150	Guide pin

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

It should be noted that if the description of "first", "second", etc. is provided in the embodiment of the present invention, the description of "first", "second", etc. is only for descriptive purposes and is not to be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied.

The traditional FPC cutting process is to place an FPC board in a hardware mould for pressing and blanking, and then paste FPC glue on a punched product. So, because hardware mould uses terrace die matched with blanking mode, there is unevenness's problem in the product of blanking. Moreover, the pasted FPC adhesive also needs to be cut, the FPC adhesive is pasted on a product after cutting, integral cutting cannot be achieved, and the phenomenon of deviation pasting and glue overflow can also exist in the pasting after cutting, so that the yield of the traditional FPC board cutting process is low.

The utility model provides an FPC cutting die which is used for cutting an FPC board, wherein a plurality of FPC elements are arranged on the FPC board, installation parts for installing LED lamps are arranged on the FPC elements, and FPC glue is adhered to the upper surface and the lower surface of the FPC board before punching. Therefore, the FPC cutting die can be used for integrally cutting. Because the FPC is glued on the FPC board before cutting, the phenomena of off-position gluing and glue overflowing can be avoided, and the yield of products is improved.

In the embodiment of the present invention, as shown in fig. 1 to 6, the FPC cutting mold 100 is used to cut the FPC board 160, a plurality of FPC components 170 are disposed on the FPC board 160, and a mounting portion 172 for mounting an LED lamp is disposed on each FPC component 170. With the FPC cutting die 100, the FPC component 170 on the FPC board 160 can be cut off.

The FPC cutting mold 100 includes a mold frame 130, a first mold 110, and a second mold 120. The first die 110 is arranged on the die frame 130, and the cutting knife 111 is arranged on the first die 110. The second die 120 is arranged on the die frame 130, the second die 120 is located on the side where the first die 110 is close to the cutting knife 111, a plurality of avoiding grooves 121 are formed in the second die 120, and the avoiding grooves 121 correspond to the mounting portion 172.

Specifically, the mold frame 130 includes a first mounting frame 131 and a second mounting frame 132, the first mold 110 is mounted to the first mounting frame 131, and the second mold 120 is mounted to the second mounting frame 132. There are many structures of the first and

second mounting brackets

131 and 132, for example, the first and

second mounting brackets

131 and 132 may be mounting plates or mounting frames, and the like, without being particularly limited.

The first die 110 is generally rectangular, and the first die 110 may also be circular or other shapes, and is not particularly limited. The first mold 110 is provided with a cutting knife 111, and the shape of the cutting knife 111 is similar to that of the FPC component 170. The number of the cutting blades 110 provided on the first die 110 is not particularly limited, and the number of the cutting blades 110 may be one or more.

The second die 120 is generally rectangular, and the second die 120 may also be circular or other shapes, and is not particularly limited. Be equipped with a plurality of grooves 121 of dodging on the second mould 120, the main effect of dodging groove 121 dodges the LED lamp on FPC component 170 installation department 172, has certain thickness because of the LED lamp, if do not set up groove 121 of dodging, can make FPC 160 atress inhomogeneous when cutting, leads to the FPC component 170 unevenness who cuts out. So when cutting, the one side that has the LED lamp with FPC board 160 is towards second mould 120, makes the LED lamp fall into and dodges in the groove 121, can effectively improve the atress condition of FPC board 160 when cutting, avoids the phenomenon of unevenness to appear in the product.

The FPC cutting die comprises a die frame 130, a first die 110 and a second die 120, wherein the first die 110 is arranged on the die frame 130, and a cutting knife 111 is arranged on the first die 110; the second die 120 is disposed on the die carrier 130, the second die 120 is disposed on one side of the first die 110 close to the cutting knife 111, and the second die 120 is provided with an avoiding groove 121; so, dodge groove 121 through setting up on second mould 120 for dodge the LED lamp on the FPC board 160, make FPC board 160 can lay on second mould 120 smooth relatively, thereby avoided the product appearance after cutting to appear unevenness's phenomenon, promoted quality, the yields of product.

In an embodiment, the avoiding groove 121 is a strip-shaped groove extending along a first direction, and the first direction and the horizontal direction form an included angle.

The FPC device 170 is a strip, and an electrical connection portion 171 is disposed on one side of the FPC device 170. The FPC component 170 is disposed at an angle to the horizontal direction, so that the electrical connection portion 171 and the mounting portion 172 are located on different horizontal lines, thereby making the FPC component 170 more closely arranged on the FPC board 160, and increasing the utilization rate of the material of the FPC board 160.

Considering that there is a difference in parameters between different FPC boards 160, the angle of the included angle formed is not particularly limited, and the included angle formed may be determined according to an actual product. In other embodiments, considering the difference of the actual parameters of the FPC board 160, the avoiding groove 121 may be parallel to the length direction of the second mold 120, and the avoiding groove 121 may also be perpendicular to the length direction of the second mold 120.

Regarding the shape of the escape groove 121, the escape groove 121 is a sink groove or a through groove. Optionally, the installation portion 172 of the FPC component 170 is provided with a cutting corner in the length direction, and the avoiding groove 121 is correspondingly provided with a cutting corner, so that when the cutting knife 111 cuts, the cutting knife 111 cuts to the position of the avoiding groove 121, which causes a phenomenon of incomplete cutting.

In an embodiment, the mold frame 130 is provided with a positioning post, the first mold 110 is provided with a first positioning hole 112, the second mold 120 is provided with a second positioning hole 122, the first positioning hole 112 and the second positioning hole 122 are correspondingly disposed, and the positioning post passes through the first positioning hole 112 and the second positioning hole 122.

Referring to fig. 2 to 5, the FPC device 170 processed has a smaller size, and the cutting knife 111 is also sharper, so that the cutting is easily deviated during the cutting process, resulting in poor cutting quality. Therefore, the first die 110 is provided with the first positioning hole 112, the second die 120 is provided with the second positioning hole 122, the positioning post of the die frame 130 passes through the first positioning hole 112 when the die frame is not cut, and the positioning hole of the die frame 130 simultaneously passes through the first positioning hole 112 and the second positioning hole 122 when the die frame is cut. Because the first positioning hole 112 and the second positioning hole 122 are correspondingly arranged, and the positioning holes simultaneously penetrate through the first positioning hole 112 and the second positioning hole 122 during cutting, the relative positions of the first die 110 and the second die 120 during cutting can be positioned, so that the cutting knife 111 on the first die 110 can accurately cut the corresponding position of the second die 120 during cutting, the occurrence of deviation in cutting is avoided, and the cutting quality is improved. Regarding the number of the first positioning holes 112 and the second positioning holes 122, considering the different kinds of the cut FPC boards 160, the sizes of the first die 110 and the second die 120 are different, and the number of the positioning holes of the first die 110 and the second die 120 should be set according to the sizes of the first die 110 and the second die 120.

In an embodiment of the present invention, the mold frame 130 is provided with a positioning pin, the second mold 120 is provided with a first through hole 123 for the positioning pin to pass through, and the first mold 110 is provided with an avoiding hole 113 for avoiding the positioning pin.

Specifically, when the FPC cutting mold 100 cuts the FPC board 160, a designated position of the FPC board 160, that is, a position of the FPC component 170 on the FPC board 160 needs to be cut, and in order to realize that the designated position of the full-page FPC board 160 can be cut, the FPC board 160 needs to be positioned. The FPC board 160 has a plurality of FPC components 170 provided thereon in advance, and the FPC board 160 is also provided with positioning pin holes 161 in advance for positioning the FPC board 160. When the cutting is not performed, the positioning pin penetrates through the first through hole 123, the FPC board 160 to be cut is placed on the second die 120, the positioning pin penetrates through the positioning pin hole 161 in the FPC board 160, and the positioning pin penetrates through the first through hole 123 and the positioning pin hole 161 in the FPC board 160 and then protrudes out of the FPC board 160, so that the avoiding hole 113 for avoiding the positioning pin is formed in the first die 110. When cutting, the positioning pin passes through the first through hole 123 and the positioning pin hole 161 on the FPC board 160 and then extends into the avoiding hole 113 on the first die 110, so as to achieve the positioning effect on the cut FPC board 160 and avoid the problem of cutting dislocation. The positioning needle is arranged to help improve cutting quality.

In an embodiment, the first mounting bracket 131 is movably connected to the second mounting bracket 132, and the first mounting bracket 131 is movable up and down relative to the second mounting bracket 132, the first mold 110 is detachably mounted on the first mounting bracket 131, and the second mold 120 is detachably mounted on the second mounting bracket 132.

Specifically, considering that the FPC component 170 has a plurality of different forms according to different needs, when producing different FPC components 170, the FPC cutting mold 100 needs to be newly manufactured, which is costly and inefficient. In the utility model, the first die 110 and the die frame 130, and the second die 120 and the die frame 130 are detachably connected, so that if different FPC elements 170 are processed, only different first dies 110 and second dies 120 need to be processed, and the first dies 110 and second dies 120 on the die frame 130 are replaced, so that the die frame 130 can be shared, thereby reducing the cost.

Regarding the structure of the mold frame 130, the mold frame 130 includes guide posts 140 and guide sleeves to enable the first and

second holders

131 and 132 to move relative to each other and the first and

second molds

110 and 120 to move relative to each other. The relative movement of the first mounting bracket 131 and the second mounting bracket 132 can be realized by external pressurization under the action of the guide post 140 and the guide sleeve. The die carrier is still including leading positive round pin 150, leads positive round pin 150 and is used for fixing a position FPC board 160's pay-off direction, when FPC board 160 pay-off, plays the guide effect to FPC board 160 to guarantee the pay-off degree of accuracy, thereby avoid producing the waste material because of the pay-off is inaccurate, lead to the mould to block up.

In an embodiment, a first threaded hole 114 is formed in the first die 110, a second threaded hole is formed in the first mounting bracket 131, and a first bolt is inserted into the first threaded hole 114 and the second threaded hole to fix the first die 110 to the first mounting bracket 131; and/or a third threaded hole 124 is formed in the second die 120, a fourth threaded hole is formed in the second mounting bracket 132, and a second bolt is inserted into the third threaded hole 124 and the fourth threaded hole to fix the second die 120 and the second mounting bracket 132.

Alternatively, the first die 110 is bolted to the first mounting bracket 131, and the second die 120 is bolted to the second mounting bracket 132. In other embodiments, the first die 110 and the first mounting frame 131, and the second die 120 and the second mounting frame 132 may be connected by interference connection or slide rail clamping grooves, which is not particularly limited.

In an embodiment, when the FPC cutting mold 100 cuts, a gap is formed between the cutting blade 111 and the second mold 120.

Specifically, referring to fig. 4 to 6, the FPC board 160 is generally divided into three layers, and after the FPC component 170 is cut, the FPC component 170 is not directly punched out of the FPC board 160 for convenient storage, transportation, and use. Instead, a half-cut mode is selected, that is, only two layers are cut without cutting, and the FPC component 170 is used by being peeled off from the FPC board 160 when the FPC component 170 is used. Therefore, the FPC element 170 can be conveniently taken and used, and the storage and transportation of the FPC board 160 are convenient. When cutting, the blade of the cutting blade 111 and the second mold 120 have a gap, and the gap enables the FPC board 160 to be incompletely cut. In other embodiments, the thickness of the material stacked on the FPC components 170 is different, so that the distance between the cutting blade 111 and the second mold 120 is different depending on the thickness of the stacked FPC components 170. Optionally, in an embodiment, a distance between the blade of the cutting knife 111 and the second die 120 is 0.1mm to 0.3 mm.

In an embodiment, the FPC component 170 is further provided with an electrical connection portion 171, the cutting blade 111 includes a first cutting portion 111a and a second cutting portion 111b, the first cutting portion 111a is similar to the mounting portion 172, and the second cutting portion 111b is similar to the electrical connection portion 171.

The FPC 170 includes a mounting portion 172 for mounting the LED lamp and an electrical connection portion 171 for connecting a power supply or an external electronic component, and the mounting portion 172 and the electrical connection portion 171 have different sizes, so that the cutting blade 111 of the first die 110 is divided into a first cutting portion 111a and a second cutting portion 111b, the first cutting portion 111a is used for cutting the mounting portion 172, and the second cutting portion 111b is used for cutting the electrical connection portion 171.

Optionally, the cutting blade 111 is a single peak blade, and/or the cutting blade 111 is a double peak blade. A single-peak knife can cut workpieces with narrower sizes, and a double-peak knife can cut workpieces with wider sizes. Alternatively, a single-peak knife or a double-peak knife may be used for the first cutting portion 111a and a single-peak knife or a double-peak knife may be used for the second cutting portion 111b, and in this embodiment, a single-peak knife may be used for the first cutting portion 111a and a double-peak knife may be used for the electrical connection portion 171 in consideration of the narrow size of the FPC member 170 mounting portion 172. The angle of the single-peak knife is 30-45 degrees, and the angle of the double-peak knife is 45-60 degrees.

Further, the cutting blade 111 is generally annularly disposed, and various structures are engraved in the annular region to fit different shapes of the FPC components 170.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a FPC cutting die for cut the FPC board, be equipped with a plurality of FPC components on the FPC board, be equipped with the installation department that supplies the LED lamp installation on the FPC component, its characterized in that, FPC cutting die includes:

a mold frame;

the first die is arranged on the die frame, and cutting knives are arranged on the first die; and

the second mould is arranged on the mould frame and is positioned at one side of the cutting knife, a plurality of avoiding grooves are formed in the second mould and correspond to the installation part.

2. The FPC cutting die of claim 1, wherein the avoiding groove is a bar-shaped groove extending along a first direction, and the first direction is disposed at an angle with a horizontal direction.

3. The FPC cutting mold according to claim 1, wherein a positioning post is disposed on the mold frame, a first positioning hole is disposed on the first mold, a second positioning hole is disposed on the second mold, the first positioning hole and the second positioning hole are disposed correspondingly, and the positioning post passes through the first positioning hole and the second positioning hole.

4. The FPC cutting mold according to claim 1, wherein the mold frame is provided with a positioning pin, the second mold is provided with a first through hole for the positioning pin to pass through, and the first mold is provided with an avoiding hole for avoiding the positioning pin.

5. The FPC cutting mold of claim 1, wherein the mold base comprises a first mounting frame and a second mounting frame, the first mounting frame is movably connected with the second mounting frame, the first mounting frame can move up and down relative to the second mounting frame, the first mold is detachably mounted on the first mounting frame, and the second mold is detachably mounted on the second mounting frame.

6. The FPC cutting die of claim 5, wherein the first die is provided with a first threaded hole, the first mounting frame is provided with a second threaded hole, and a first bolt is inserted into the first threaded hole and the second threaded hole to fix the first die with the first mounting frame;

7. The FPC cutting die of claim 1, wherein a gap is formed between the cutting blade and the second die when the FPC cutting die is cutting.

8. The FPC cutting die of claim 7, wherein a gap between the cutting blade and the second die is 0.1mm to 0.3 mm.

9. The FPC cutting die of any one of claims 1 to 8, wherein the FPC component is provided with an electrical connection portion, and the cutting blade includes a first cutting portion having a shape similar to that of the mounting portion and a second cutting portion having a shape similar to that of the electrical connection portion.

10. The FPC cutting die of claim 9, wherein the cutting blade is a single peak blade, and/or the cutting blade is a double peak blade.