Chip module reinforcing steel sheet full-circle deburring die and punching process

Abstract

The application discloses a full-peripheral deburring die for a chip module reinforcing steel sheet, which comprises a steel belt and a deburring workpiece arranged above the steel belt, a plurality of punching holes are punched on the steel belt at equal intervals, positioning holes are punched on both sides of each punching hole, a punch die corresponding to the outer contour of the punching hole is arranged at the bottom of the deburring workpiece, a protrusion is arranged at the front end and the rear end of the side surface of the deburring workpiece along the height direction, and a protruding strip is arranged at the middle part along the height direction, the inner side of the protrusion is a circular arc surface, and the two sides of the protruding strip are both circular arc surfaces. The application further discloses a processing technology of a 5G chip circuit board three-dimensional steel reinforcing tape glue, which mainly comprises the following steps: cleaning the material, hot pressing and gluing, punching the long edge, chamfering and deburring the long edge, film coating, punching the short edge, chamfering and deburring the short edge, full inspection, waste sorting, winding and packaging. The deburring workpiece can remove the burrs of the punching holes with the round corners on the four sides, the punching holes of the steel belt are ensured to be free of burrs, the production capacity is improved, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of FPC board reinforcing steel strips, in particular to a full-circle deburring die for chip module reinforcing steel sheets and a punching process. BACKGROUND

[0002] Currently, the following methods are usually used for deburring the back adhesive steel strip:

[0003] 1. First, punch the bare steel strip, then use the magnetic fluid process to grind the burrs, then manually position the adhesive and perform sheet hot pressing on the steel strip, and finally manually roll the steel strip to form the finished product. This process has high labor costs and low efficiency, and the grinding burrs affect the thickness of the nickel layer and the appearance effect.

[0004] 2. Although the etching process can meet the requirements of no burrs on the steel strip, it cannot effectively ensure the size tolerance and CPK value of the punched hole, and can only produce a steel strip with inwardly retracted adhesive;

[0005] 3. The current deburring process can only remove large burrs, and the small-diameter round corner burrs in the punched hole of the steel strip cannot be removed. SUMMARY

[0006] The main purpose of the present application is to provide a full-circle deburring die for chip module reinforcing steel sheets, which solves the problems of high cost, low efficiency and inability to remove small-diameter round corner burrs of the existing steel reinforcing strip adhesive punching die.

[0007] To achieve the above purpose, the present application provides a full-circle deburring die for chip module reinforcing steel sheets, comprising a steel strip and a deburring workpiece arranged above the steel strip, wherein a plurality of punched holes are punched equidistantly on the steel strip, positioning holes are punched on both sides of each punched hole, a punch is arranged on the bottom of the deburring workpiece and matched with the outer contour of the punched hole, a protrusion is arranged on the front end and the rear end of the side surface of the deburring workpiece along the height direction, and a protruding strip is arranged on the middle part along the height direction. The inner side of the protrusion is a circular arc surface, and the two sides of the protruding strip are circular arc surfaces.

[0008] Preferably, the punch is arranged in the length direction of the deburring workpiece and has a strip-shaped structure, and one side of the punch is a bevel surface connected with one side of the deburring workpiece.

[0009] Preferably, the punched hole is a square hole with four rounded corners, and the rounded corners are matched with the protrusions.

[0010] Preferably, the radius of the rounded corner is 0.3-0.6mm.

[0011] Preferably, the deburring workpiece can be swung by 0-90°.

[0012] Preferably, the length and width of the die are both smaller than the length and width of the deburred workpiece.

[0013] The chip module reinforcing steel strip full-circle deburring die stamping process provided by the application is characterized by comprising the following steps:

[0014] S1: cleaning the material, cleaning the steel strip;

[0015] S2: hot pressing and gluing, hot pressing and gluing the steel strip and the protective film by using a hot press,

[0016] S3: punching long edges, punching long edges of positioning holes and punching holes by using a stamping die,

[0017] S4: long edge chamfering and deburring, removing the chamfer burrs of the long edges of the punching holes by using a deburring workpiece die;

[0018] S5: applying a film, applying a layer of slightly sticky film on the steel strip after cutting the long edges;

[0019] S6: punching short edges, placing the stamping die between the long edges of the punching holes and punching short edges of the punching holes;

[0020] S7: short edge chamfering and deburring, removing the burrs of the short edges of the punching holes by using a deburring workpiece die;

[0021] S8: full inspection, quality inspection of the formed steel strip;

[0022] S9: waste removal, separating the steel strip after stamping from the slightly sticky film to form a steel strip product;

[0023] S10: coiling, coiling the steel strip product together;

[0024] S11: packaging, packaging the coiled steel strip product.

[0025] Preferably, the width of the steel strip is greater than the width of the protective film, the width of the protective film is greater than the width of the slightly sticky film, and the protective film and the slightly sticky film are respectively pasted on the front and back surfaces of the steel strip.

[0026] The technical scheme of the application has the following beneficial effects:

[0027] The chip module reinforcing steel sheet full-circle deburring die provided by the application mainly comprises a steel belt and a deburring workpiece, the steel belt is provided with a plurality of punching holes punched by a punching die, and a plurality of positioning holes are punched on both sides of the steel belt, wherein, two symmetrical positioning holes correspond to one punching hole, so as to facilitate punching positioning and ensure the positioning accuracy of the punching hole position. The deburring workpiece is installed above the steel belt and mainly comprises a punch die at the bottom of the deburring workpiece, the outer side of the punch die is adapted to the outer contour of the punching hole, the deburring workpiece is used for removing burrs left on the steel belt after punching by the punching die, so as to avoid the burrs on the steel belt scratching and damaging the FPC board, and the product qualified rate is high; the protrusions are arranged on the front end and the rear end of the outer side of the deburring workpiece along the height direction, the protrusions are arranged on the middle part, the inner side of the protrusion is a circular surface, and the two sides of the protrusion are both circular surfaces, so that the deburring workpiece can remove the burrs of the punching hole with a round corner on all sides, the punching hole of the steel belt is ensured to have no burrs, the production capacity is improved, and the manufacturing cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 FIG. 1 is a structural schematic view of an embodiment of the chip module reinforcing steel sheet full-circle deburring die provided by the application;

[0029] Figure 2 FIG. 2 is a structural schematic view of the deburring workpiece of the chip module reinforcing steel sheet full-circle deburring die provided by the application;

[0030] Figure 3 FIG. 3 is a side structural schematic view of the chip module reinforcing steel sheet full-circle deburring die provided by the application;

[0031] Figure 4 FIG. 4 is a state view of the deburring workpiece of the chip module reinforcing steel sheet full-circle deburring die provided by the application in a 45° swing state;

[0032] Figure 5 FIG. 5 is a top structural schematic view of the steel belt of the chip module reinforcing steel sheet full-circle deburring die provided by the application;

[0033] Figure 6 FIG. 6 is an effect view of the protective film and the micro-adhesive film of the chip module reinforcing steel sheet full-circle deburring die provided by the application pasted on the steel belt;

[0034] Figure 7 FIG. 7 is a process diagram of the chip module reinforcing steel sheet full-circle deburring die provided by the application. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described below in detail with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0036] As a preferred embodiment of the present application, referring to Figures 1-4 The present application proposes a full-circle deburring die for a reinforcing steel sheet of a chip module, which comprises a steel belt 1 and a deburring workpiece 2 arranged above the steel belt 1. A plurality of punching holes 11 are punched equidistantly on the steel belt 1. Positioning holes 12 are punched on both sides of each punching hole 11. A punch die 21 is arranged at the bottom of the deburring workpiece 2 and is adapted to the outer contour of the punching hole 11. A protrusion 22 is arranged at the front end and the rear end of the side of the deburring workpiece 2 along the height direction. A protruding strip 23 is arranged at the middle part of the side of the deburring workpiece 2 along the height direction. The inner side of the protrusion 22 is a circular arc surface. The two sides of the protruding strip 23 are both circular arc surfaces.

[0037] The full-circle deburring die for the reinforcing steel sheet of the present application mainly comprises the steel belt 1 and the deburring workpiece 2. A plurality of punching holes 11 are punched on the steel belt 1 by a punching die. A plurality of positioning holes 12 are punched on both sides of the steel belt. Among them, two symmetrical positioning holes 12 correspond to one punching hole 11, which facilitates punching positioning and ensures accurate positioning of the punching hole 11. The deburring workpiece 2 is arranged above the steel belt 1 and mainly comprises a punch die 21 arranged at the bottom of the deburring workpiece 2. The outer side of the punch die 21 is adapted to the outer contour of the punching hole 11. The deburring workpiece 2 is used to remove the burrs left on the steel belt 1 after punching by the punching die, so as to avoid scratching and damaging the FPC board by the burrs on the steel belt and to improve the product qualification rate. The protrusion 22 is arranged at the front end and the rear end of the outer side of the deburring workpiece 2 along the height direction, and the protruding strip 23 is arranged at the middle part of the outer side of the deburring workpiece 2 along the height direction. The inner side of the protrusion 22 is a circular arc surface, and the two sides of the protruding strip 23 are both circular arc surfaces. The deburring workpiece 2 can remove the burrs of the punching hole 11 with a round corner around the punching hole 11, so as to ensure that the punching hole of the steel belt has no burrs, improve the production capacity and reduce the manufacturing cost.

[0038] In a preferred embodiment, referring to Figure 1 and Figure 3 The punch die 21 of the full-circle deburring die for the reinforcing steel sheet is arranged along the length direction of the deburring workpiece 2 and has a strip-shaped structure. One side of the punch die 21 is a bevel surface and is connected with one side of the deburring workpiece 2. The punch die 21 is arranged at the bottom of the deburring workpiece and has a long strip-shaped structure along the length direction. The outer side of the punch die 21 is a bevel surface with an inclination angle of 45-50°, usually 45°, and is connected with the outer side of the deburring workpiece 2. When deburring, the punch die 21 is punched into the punching hole 11 of the steel belt 1.

[0039] In a preferred embodiment, referring to Figure 2The punch 11 of the reinforcing steel sheet full-circle deburring die is a square hole, and the four corners are rounded corners, which are adapted to the protrusions 22. The radius of the rounded corners is 0.3-0.6 mm.

[0040] Figure 2 The punch 11 in the figure is a semi-finished product punch, only the long side of the punch is punched, and the short side of the punch has not been punched, and two symmetrical finished products of the punch 11 will be formed after the short side is punched. The four corners of the punch 11 are rounded corners, which are punched by the protrusions 22 of the deburring workpiece 2. When the radius of the rounded corners of the punch 11 of the steel strip is greater than or equal to 0.4 mm, the deburring workpiece 2 can be precisely carved by CNC processing in one circle, and the 45° bevel can be used to remove the burrs of the product cut edge; when the radius of the rounded corners of the punch 11 of the steel strip is less than 0.4 mm, the inner corner of the bevel of the deburring workpiece 2 cannot be processed because the diameter of the CNC tool is greater than or equal to 0.4 mm. At this time, the projection line can be obtained by swinging the deburring workpiece by a certain angle on the 3D software, and the deburring workpiece 2 is side-cut to complete the deburring action.

[0041] In a preferred embodiment, referring to Figure 4 The deburring workpiece of the reinforcing steel sheet full-circle deburring die can swing 0-90°. The swing angle of the deburring workpiece can be adjusted according to the size of the radius of the rounded corners of the punch 11.

[0042] In a preferred embodiment, referring to Figure 1 The length and width of the punch 21 of the reinforcing steel sheet full-circle deburring die are smaller than the length and width of the deburring workpiece 2. By setting the size of the surface area of the punch 21 to be smaller than the size of the surface area of the deburring workpiece 2, the size of the punch 21 is more accurate when punching the punch 11.

[0043] The chip module reinforcing steel sheet full-circle deburring die punching process provided by the present application, referring to Figures 5-7 , comprises the following steps:

[0044] S1: cleaning the material, cleaning the steel strip 1;

[0045] S2: hot pressing and gluing, hot pressing and gluing the steel strip 1 and the protective film 3 by using the glue 31,

[0046] S3: cutting the long side, using a punching die to punch out the positioning hole 12 and the long side 111 of the punch 11,

[0047] S4: long side chamfering and deburring, using the punch of the deburring workpiece to remove the burrs of the rounded corners of the long side of the punch;

[0048] S5: film coating, coating a layer of slightly sticky film 4 on the steel strip after cutting the long side;

[0049] S6: punching the short side, placing the punching die between the long sides of the two punching holes 11, and punching out the short side 112 of the punching hole;

[0050] S7: chamfering the short side, using a deburring die to remove the burrs of the short side of the punching hole;

[0051] S8: full inspection, quality inspection of the formed steel strip;

[0052] S9: waste removal, separating the steel strip 1 from the micro-adhesive film 4 after the punching is completed, forming a steel strip product;

[0053] S10: roll, roll up the steel strip product;

[0054] S11: packaging, packaging the rolled steel strip product.

[0055] In a preferred embodiment, the protective film in S2 is usually a PET film, which protects the steel strip, and the micro-adhesive film 4 in S5 is a release film, which is separated from the steel strip 1 after the reinforcing steel strip is processed into a finished product, completing the waste removal.

[0056] In a preferred embodiment, referring to Figures 5-7 , the width of the steel strip 1 is greater than the width of the protective film 3, the width of the protective film 3 is greater than the width of the micro-adhesive film 4, and the protective film 3 and the micro-adhesive film 4 are respectively pasted on the front and back of the steel strip 1. By setting the width of the steel strip 1 to be greater than the width of the protective film 3, the protective film 3 can be tightly attached to the middle part of the steel strip 1, playing a protective role for the steel strip 1, and by pasting the protective film 3 and the micro-adhesive film 4 on the front and back of the steel strip 1 respectively, the micro-adhesive film is convenient for waste removal.

[0057] The above only describes some or preferred embodiments of the present application, neither the text nor the drawings can limit the scope of protection of the present application, any equivalent structural transformation using the content of the present application specification and drawings, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.

Claims

1. A chip module reinforcing steel sheet full circumference deburring die punching process, the punching process using a die comprising a steel belt and a deburring workpiece arranged above the steel belt, characterized in that, The steel belt is punched with a plurality of punching holes at equal intervals, positioning holes are punched on both sides of each punching hole, the deburring workpiece bottom is provided with a punch die matched with the outer contour of the punching hole, the front end and the rear end of the side surface of the deburring workpiece are provided with protrusions along the height direction, and the middle part is provided with a protrusion along the height direction, the inner side of the protrusion is a circular arc surface, and the two sides of the protrusion are circular arc surfaces; The mold is used to perform the following punching process: S1: cleaning the material, cleaning the steel belt; S2: hot pressing and gluing, hot pressing and gluing the steel belt and the protective film by using a hot press, S3: punching long edges, punching long edges of positioning holes and punching holes by using a punching die, S4: long edge chamfering and deburring, removing the burrs of the long edge chamfer of the punching hole by using the punch die of the deburring workpiece; S5: film coating, coating a layer of slightly sticky film on the steel belt after cutting the long edge; S6: punching short edges, placing the punching die between the long edges of the two punching holes and punching the short edges of the punching holes; S7: short edge chamfering and deburring, removing the burrs of the short edge of the punching hole by using the punch die of the deburring workpiece; S8: full inspection, quality inspection of the formed steel belt; S9: waste removal, separating the steel belt from the slightly sticky film after punching to form a steel belt product; S10: roll, roll the steel belt product together; S11: packaging, packaging the rolled steel belt product. The width of the steel belt is greater than the width of the protective film, the width of the protective film is greater than the width of the slightly sticky film, and the protective film and the slightly sticky film are respectively pasted on the front and back of the steel belt.

2. The chip module reinforcement sheet full circumference deburring die stamping process of claim 1, wherein, The punch die is provided along the length direction of the deburring workpiece and has a strip structure, and one side of the punch die is a bevel surface connected with one side of the deburring workpiece.

3. The chip module reinforcement sheet full perimeter deburring die stamping process of claim 1 wherein, The punching hole is a square hole, and the four corners are rounded corners matched with the protrusions.

4. The chip module reinforcement sheet full perimeter deburring die stamping process of claim 3 wherein, The radius of the rounded corner is 0.3-0.6mm.

5. The chip module reinforcement sheet full perimeter deburring die stamping process of claim 1 wherein, The deburring workpiece can swing 0-90°.

6. The chip module reinforcement sheet full perimeter deburring die stamping process of claim 1 wherein, The length and width of the punch die are smaller than the length and width of the deburring workpiece.

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