Leveling and briquetting die and production and processing equipment for precise die cutting fuse process

Abstract

The utility model discloses a leveling briquetting die and production processing equipment for a precision die-cutting fuse process, the leveling briquetting die for the precision die-cutting fuse process comprises a leveling roller and a briquetting, the briquetting is connected to the outer peripheral surface of the leveling roller, and the leveling roller is provided with a plurality of grooves. The pressing block comprises a first circuit section, a fuse section and a second circuit section which are sequentially connected, the width of the first circuit section and the width of the second circuit section are both larger than that of the fuse section, and when the pressing block rolls a fuse, the first circuit section and the second circuit section are used for rolling circuit boards at the two ends of the fuse. And the fuse section is used for carrying out rolling treatment on the cut fuse. According to the technical scheme of the utility model, the yield of fuses is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of parts production and processing equipment, in particular to a flattening block die for a precision die-cutting fuse process. Background Art

[0002] At present, precision die-cut fuses are formed in a physical way, that is, the material is cut and formed directly by a cutting knife. However, during the cutting process, the blade will squeeze the material, causing the fuse to sink into the knife cavity when it is formed, which can easily form convex points on the fuse, thereby increasing the inconsistent resistance of various parts of the fuse, thereby reducing the yield rate of the fuse.

[0003] In the prior art, after the fuse is formed, it is pressed and flattened with a flat steel rod. However, the contact area between the flat steel rod and the fuse is too large, so that the rolling effect on the fuse is not ideal. Utility Model Content

[0004] The main purpose of the utility model is to provide a flattening block die for a precision die-cutting fuse process, aiming at improving the yield rate of the fuse.

[0005] In order to achieve the above-mentioned purpose, the flattening block mold of the precision die-cutting fuse process proposed by the utility model comprises:

[0006] Smoothing rollers; and

[0007] A pressing block is connected to the outer circumference of the flattening roller, the pressing block includes a first circuit segment, a fuse segment and a second circuit segment which are connected in sequence, the width of the first circuit segment and the second circuit segment are both greater than the width of the fuse segment, when the pressing block rolls the fuse, the first circuit segment and the second circuit segment are used to roll the circuit boards at both ends of the fuse, and the fuse segment rolls the cut fuse.

[0008] Optionally, the fuse segments include at least one first fuse segment and at least one second fuse segment, the first fuse segments and the second fuse segments are alternately arranged one by one, and a width of the first fuse segment is greater than a width of the second fuse segment.

[0009] Optionally, the first fuse segment is arranged in an arc shape or a straight line; and / or the second fuse segment is arranged in an arc shape or a straight line.

[0010] Optionally, the first fuse segment includes a straight segment and a transition segment, the extension direction of the second fuse segment remains consistent, the straight segment and the second fuse segment are connected via the transition segment, and the transition segment is gradually reduced along the length direction of the second fuse segment.

[0011] Optionally, the width of the straight section is W1, 0.3mm<W1≤0.5mm.

[0012] Optionally, a width of the second fuse segment is W2, 0.1 mm≤W2≤0.3 mm.

[0013] Optionally, the sum of the areas of the first circuit segment and the second circuit segment is S1, the sum of the areas of the first fuse segment and the second fuse segment is S2, and S1≥3S2.

[0014] Optionally, the length of the fuse segment is L, 10mm≤L≤40mm.

[0015] The utility model also proposes a production and processing equipment for precision die-cutting fuse technology, comprising:

[0016] frame;

[0017] A copper foil unwinding assembly is installed on the frame and is used for unwinding the copper foil;

[0018] A bottom film unwinding assembly is installed on the frame and is used to stick the bottom film to one side of the copper foil;

[0019] A circular knife assembly, which is mounted on the frame and is used for die-cutting the copper foil;

[0020] A recovery film unwinding assembly is installed on the frame and is used to adhere the recovery film to the side of the copper foil away from the base film;

[0021] A first film tearing assembly is installed on the frame and is used to tear off the recycling film to tear off the copper foil waste except the circuit and the fuse from the base film;

[0022] A first covering film assembly, mounted on the frame, for attaching a covering film to a side of the copper foil facing away from the base film;

[0023] A second film tearing assembly, mounted on the frame, for tearing off the bottom film;

[0024] The flattening block mold for the precision die-cutting fuse process as described above, the flattening block mold for the precision die-cutting fuse process also includes a flattening motor and a matching roller, the matching roller and the flattening roller are both rotatably mounted on the frame, the flattening roller and the matching roller are spaced apart, the copper foil is sandwiched between the flattening roller and the matching roller, the flattening motor is mounted on the frame, and is in transmission connection with the flattening roller to drive the flattening roller to rotate, thereby flattening the fuse;

[0025] A second covering film assembly is installed on the frame and is used to stick a second covering film to a side of the copper foil away from the first covering film, so as to process the copper foil into a flexible circuit board;

[0026] A molding assembly, mounted on the frame, for cutting and molding the flexible circuit board; and

[0027] A transport assembly is installed on the frame, and is used to transport the copper foil in sequence to the copper foil unwinding assembly, the base film unwinding assembly, the circular knife assembly, the recovery film unwinding assembly, the first film tearing assembly, the first covering film assembly, the second film tearing assembly, the second covering film assembly and the forming assembly for processing.

[0028] Optionally, the recovery film unwinding assembly comprises a recovery motor and a recovery roller, the output shaft of the recovery motor is drivingly connected to the recovery roller, and the recovery film is wound around the recovery roller.

[0029] The flattening block mold of the precision die-cutting fuse process in the technical solution of the utility model includes a flattening roller and a block, the block is connected to the outer peripheral surface of the flattening roller, the block includes a first circuit segment, a fuse segment and a second circuit segment connected in sequence, the width of the first circuit segment and the second circuit segment are both greater than the width of the fuse segment, when the block rolls the fuse, the first circuit segment and the second circuit segment are used to roll the circuit boards at both ends of the fuse, and the fuse segment rolls the cut fuse. Before rolling the fuse, it is shown that the circuit board is cut by a cutting knife, so that the fuse is cut out on the circuit board, and then the flattening roller is rotated, and further, the circuit board and the fuse are rolled by the block on the flattening roller, so that the fuse is rolled more neatly, thereby reducing the bumps on the surface of the fuse, thereby improving the yield and stability of the fuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of a flattening roller in an embodiment of a flattening block mold for a precision die-cutting fuse process of the utility model;

[0032] Figure 2 It is a structural schematic diagram of a pressing block in an embodiment of a flattening pressing block mold of a precision die-cutting fuse process of the utility model;

[0033] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0034] Description of Figure Numbers:

[0035] Label name Label name 10 Leveling roller 231 First fuse section 21 First circuit segment 2311 Straight section 22 Second circuit segment 2312 Transition 23 Fuse segment 232 Second fuse section

[0036] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B; in addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0041] Reference Figure 1 and Figure 2 The utility model provides a flattening block die for precision die-cutting fuse technology, comprising:

[0042] a leveling roller 10; and

[0043] A pressing block, wherein the pressing block is connected to the outer peripheral surface of the flattening roller 10, and the pressing block includes a first circuit segment 21, a fuse segment 23, and a second circuit segment 22 which are connected in sequence, wherein the widths of the first circuit segment 21 and the second circuit segment 22 are both greater than the width of the fuse segment 23, and when the pressing block rolls the fuse, the first circuit segment 21 and the second circuit segment 22 are used to roll and fix the circuit boards at both ends of the fuse, and the fuse segment 23 rolls the cut fuse.

[0044] The flattening block mold of the precision die-cutting fuse process in the technical solution of the utility model includes a flattening roller 10 and a block, the block is connected to the outer peripheral surface of the flattening roller 10, the block includes a first circuit segment 21, a fuse segment 23 and a second circuit segment 22 connected in sequence, the width of the first circuit segment 21 and the second circuit segment 22 are both greater than the width of the fuse segment 23, when the block rolls the fuse, the first circuit segment 21 and the second circuit segment 22 are used to roll the circuit boards at both ends of the fuse, and the fuse segment 23 rolls the cut fuse. Before rolling the fuse, it is shown that the circuit board is cut by a cutting knife, so that the fuse is cut out on the circuit board, and then the flattening roller 10 is rotated, and further, the circuit board and the fuse are rolled by the block on the flattening roller 10, so that the fuse is rolled more neatly, thereby reducing the bumps on the surface of the fuse, thereby improving the yield and stability of the fuse.

[0045] It can be understood that the cutting knife mainly cuts the two sides of the fuse in the width direction, so the convex points on the two sides of the fuse in the width direction are generally less, and the flattening roller 10 mainly rolls the sides of the fuse in the thickness direction, thereby reducing the convex points on both sides of the thickness direction.

[0046] Furthermore, when the first circuit segment 21 and the second circuit segment 22 are rolling the circuit board, they play a role in leveling the circuit board and also play a role in fixing the fuse. Because the size of the fuse is small, if the fuse is directly rolled by the fuse segment 23, it is easy for the fuse to deviate after being rolled, and the size of the circuit board is large, so the first circuit segment 21 and / or the second circuit segment 22 are first rolled and fixed to achieve positioning of the fuse, thereby reducing the possibility of deviation of the fuse when the pressing block is rolled. The leveling effect of the flattening block mold is thereby improved, thereby improving the yield rate of the fuse. It can be understood that since the round roller is cylindrical, when the pressing block is rolling the fuse, at least one of the first circuit segment 21 and the second circuit segment 22 rolls the circuit board corresponding to the two ends of the corresponding fuse, thereby playing the role of fixing the fuse.

[0047] In this embodiment, the fuse segment 23 includes at least one first fuse segment 231 and at least one second fuse segment 232. The first fuse segments 231 and the second fuse segments 232 are arranged alternately one by one, and the width of the first fuse segment 231 is greater than the width of the second fuse segment 232. Through two fuses of different widths, the first fuse segment 231 with a larger width is used to connect the circuit board, thereby increasing the stability and reliability of the connection between the fuse and the circuit board; while the second fuse segment 232 with a smaller width mainly plays a role in protecting the circuit. When the current flowing through the fuse is too large, the second fuse segment 232 will be melted to protect the device connected to the circuit board.

[0048] Specifically, the first fuse segment 231 is arranged in an arc shape or a straight line; and / or the second fuse segment 232 is arranged in an arc shape or a straight line. It can be understood that the circuit on the circuit board is complicated, so the first fuse and the second fuse may need to be arranged in an arc shape in a section with a complicated circuit, so the first fuse and the second fuse can be either arc-shaped or straight-line.

[0049] Optionally, the first fuse segment 231 includes a straight segment 2311 and a transition segment 2312, the extension direction of the second fuse segment 232 remains consistent, the straight segment 2311 and the second fuse segment 232 are connected by the transition segment 2312, and the transition segment 2312 is gradually reduced along the length direction of the second fuse segment 232.

[0050] Since the fuse is made by setting a circular knife on the outer circumference of a circular roller, and then driving the circular knife roller to rotate, thereby driving the circular knife to cut the circuit board, thereby cutting a corresponding shape fuse on the circuit board, if no transition section 2312 is set between the second fuse section 232 and the straight section 2311, that is, the connection between the first straight section and the straight section 2311 is set vertically, it is not convenient for the circular knife to cut the connection between the first straight section and the straight section 2311, thereby reducing the yield rate of the fuse.

[0051] Reference Figure 3 In this embodiment, the width of the straight section 2311 is W1, 0.3mm<W1≤0.5mm; the width of the second fuse section 232 is W2, 0.1mm≤W2≤0.3mm. In this way, when the fuse meets the voltage of 5V to 30V and the current of 5A, the straight fuse cut by the first circular knife section and the second circular knife section can be fused within 1S to 3S. It can be understood that when the voltage and current are different, the first fuse section 231 and the second fuse section 232 of corresponding size can be set.

[0052] Specifically, the sum of the areas of the first circuit segment 21 and the second circuit segment 22 is S1, the sum of the areas of the first fuse segment 231 and the second fuse segment 232 is S2, and S1 ≥ 3S2. It can be understood that when the flattening roller 10 rolls the fuse segment 23, since the flattening roller 10 is cylindrical, the flattening roller 10 always presses only a portion of the flattening roller 10 during rolling, thereby increasing the areas of the first circuit segment 21 and the second circuit segment 22, thereby increasing the contact area between the first circuit segment 21 and the second circuit segment 22 of the flattening roller 10 and the circuit board, thereby reducing the possibility of the fuse segment 23 being offset during the rolling process, thereby improving the rolling effect of the fuse, and thereby improving the yield rate of the fuse.

[0053] In this embodiment, the length of the fuse segment 23 is L, 10mm≤L≤40mm. It can be understood that the fuse only plays the role of melting the fuse to protect the circuit when the current is overloaded. Therefore, if the length of the fuse L>40mm, the fuse needs to occupy a large space, which is not conducive to the miniaturization of the circuit board. If L<10mm, after the first fuse segment 231 is melted, the melted metal liquid may still connect the circuit boards at both ends of the fuse, thereby reducing the protection effect of the fuse and the safety of the circuit board.

[0054] The utility model also proposes a production and processing equipment for precision die-cutting fuse technology, comprising:

[0055] frame;

[0056] A copper foil unwinding assembly is installed on the frame and is used for unwinding the copper foil;

[0057] A bottom film unwinding assembly is installed on the frame and is used to stick the bottom film to one side of the copper foil;

[0058] A circular knife assembly, which is mounted on the frame and is used for die-cutting the copper foil;

[0059] A recovery film unwinding assembly is installed on the frame and is used to adhere the recovery film to the side of the copper foil away from the base film;

[0060] A first film tearing assembly is installed on the frame and is used to tear off the recycling film to tear off the copper foil waste except the circuit and the fuse from the base film;

[0061] A first covering film assembly, mounted on the frame, for attaching a covering film to a side of the copper foil facing away from the base film;

[0062] A second film tearing assembly, mounted on the frame, for tearing off the bottom film;

[0063] The flattening block mold for the precision die-cutting fuse process as described above, the flattening block mold for the precision die-cutting fuse process also includes a flattening motor and a matching roller, the matching roller and the flattening roller 10 are both rotatably mounted on the frame, the flattening roller 10 and the matching roller are arranged at intervals, the copper foil is clamped between the flattening roller 10 and the matching roller, the flattening motor is installed on the frame, and is in transmission connection with the flattening roller 10 to drive the flattening roller 10 to rotate, thereby flattening the fuse;

[0064] A second covering film assembly is installed on the frame and is used to stick a second covering film to a side of the copper foil away from the first covering film, so as to process the copper foil into a flexible circuit board;

[0065] A molding assembly, mounted on the frame, for cutting and molding the flexible circuit board; and

[0066] A transport assembly is installed on the frame, and is used to transport the copper foil in sequence to the copper foil unwinding assembly, the base film unwinding assembly, the circular knife assembly, the recovery film unwinding assembly, the first film tearing assembly, the first covering film assembly, the second film tearing assembly, the second covering film assembly and the forming assembly for processing.

[0067] Optionally, the recycling film unwinding assembly includes a recycling motor and a recycling roller, the output shaft of the recycling motor is in driving connection with the recycling roller, and the recycling film is wound on the recycling roller. The recycling film unwinding assembly and the first film tearing assembly are arranged opposite to each other, the first film tearing assembly includes a first film tearing motor and a first film tearing roller, the output shaft of the first film tearing motor is in driving connection with the first film tearing roller, and the end of the recycling film away from the recycling roller is wound on the first film tearing roller.

[0068] It can be understood that the two ends of the recycling film are respectively wound around the recycling roller and the first film tearing roller, and then the recycling film is moved from the recycling roller toward the first film tearing roller driven by the recycling motor and the first film tearing motor, thereby continuously adhering the copper foil waste after die-cutting on the circuit board to the recycling film, thereby realizing the recycling of waste.

[0069] Similarly, the principles of the base film unwinding assembly and the second film tearing assembly are the same as those of the recovery film unwinding assembly and the first film tearing assembly; and the function of the base film unwinding assembly is to adhere the waste to the base film after the fuse is die-cut to avoid the waste from splashing after cutting and affecting the subsequent cutting of the fuse.

[0070] Among them, the circular knife assembly includes a circular knife roller, a circular knife motor and a circular blade. The output shaft of the circular knife motor is transmission-connected to the circular knife roller. The circular blade is arranged on the outer circumferential surface of the circular knife roller. The circular knife motor drives the circular knife roller to rotate, so that the circular blade cuts the copper foil located at the circular knife assembly to process a fuse of a predetermined shape and size.

[0071] In this embodiment, the forming assembly includes a forming roller, a forming motor and a forming blade. The output shaft of the forming motor is transmission-connected to the forming roller. The forming blade is arranged on the outer peripheral surface of the forming roller. The forming motor drives the forming roller to rotate so that the forming blade cuts the copper foil to form multiple small flexible circuit boards at the copper foil after the fuse is processed.

[0072] Furthermore, the transport component includes a transport motor, a driving roller and a driven roller, the transport motor is installed on the frame, the driving roller is drivingly connected to the output shaft of the transport motor, and the driven roller is drivingly connected to the driving roller, wherein the transport motor drives the driving roller to rotate, thereby driving the driven roller to rotate, and the copper foil is placed on the driven roller, so that the driven roller can drive the copper foil to move horizontally in a predetermined direction, and then move to the corresponding processing position of the fuse for corresponding processing.

[0073] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A flattening block die for precision die-cutting fuse technology, characterized in that: include: Leveling roller (10); and A pressing block, the pressing block is connected to the outer peripheral surface of the flattening roller (10), the pressing block comprises a first circuit segment (21), a fuse segment (23) and a second circuit segment (22) which are connected in sequence, the width of the first circuit segment (21) and the second circuit segment (22) are both greater than the width of the fuse segment (23), when the pressing block rolls the fuse, the first circuit segment (21) and the second circuit segment (22) are used to roll the circuit boards at both ends of the fuse, and the fuse segment (23) rolls the cut fuse.

2. The flattening block mold for the precision die-cutting fuse process according to claim 1, characterized in that: The fuse segment (23) comprises at least one first fuse segment (231) and at least one second fuse segment (232), the first fuse segments (231) and the second fuse segments (232) are arranged alternately one by one, and the width of the first fuse segment (231) is greater than the width of the second fuse segment (232).

3. The flattening block mold for the precision die-cutting fuse process according to claim 2, characterized in that: The first fuse segment (231) is arranged in an arc shape or a straight line shape; and / or The second fuse segment (232) is arranged in an arc shape or a straight line shape.

4. The flattening block mold for the precision die-cutting fuse process according to claim 2, characterized in that: The first fuse segment (231) comprises a straight segment (2311) and a transition segment (2312); the extension direction of the second fuse segment (232) remains consistent; the straight segment (2311) and the second fuse segment (232) are connected via the transition segment (2312); and the transition segment (2312) is gradually reduced along the length direction of the second fuse segment (232).

5. The flattening block mold for the precision die-cutting fuse process according to claim 4, characterized in that: The width of the straight section (2311) is W1, 0.3mm<W1≤0.5mm.

6. The flattening block mold for the precision die-cutting fuse process according to claim 2, characterized in that: The width of the second fuse segment (232) is W2, 0.1 mm≤W2≤0.3 mm.

7. The flattening block mold for the precision die-cutting fuse process according to claim 2, characterized in that: The sum of the areas of the first circuit segment (21) and the second circuit segment (22) is S1, the sum of the areas of the first fuse segment (231) and the second fuse segment (232) is S2, and S1≥3S2.

8. The flattening block mold for the precision die-cutting fuse process according to claim 1, characterized in that: The length of the fuse segment (23) is L, 10 mm ≤ L ≤ 40 mm.

9. A production and processing equipment for precision die-cutting fuse technology, characterized in that: include: frame; A copper foil unwinding assembly is installed on the frame and is used for unwinding the copper foil; A bottom film unwinding assembly is installed on the frame and is used to stick the bottom film to one side of the copper foil; A circular knife assembly, which is mounted on the frame and is used for die-cutting the copper foil; A recovery film unwinding assembly is installed on the frame and is used to adhere the recovery film to the side of the copper foil away from the base film; A first film tearing assembly is installed on the frame and is used to tear off the recycling film to tear off the copper foil waste except the circuit and the fuse from the base film; A first covering film assembly, mounted on the frame, for attaching a covering film to a side of the copper foil facing away from the base film; A second film tearing assembly, mounted on the frame, for tearing off the bottom film; The flattening block mold for the precision die-cutting fuse process according to any one of claims 2 to 8, the flattening block mold for the precision die-cutting fuse process also includes a flattening motor and a matching roller, the matching roller and the flattening roller (10) are both rotatably mounted on the frame, the flattening roller (10) and the matching roller are arranged at intervals, the copper foil is clamped between the flattening roller (10) and the matching roller, the flattening motor is installed on the frame, and is transmission-connected to the flattening roller (10) to drive the flattening roller (10) to rotate, thereby flattening the fuse; A second covering film assembly is installed on the frame and is used to adhere the second covering film to the side of the copper foil away from the first covering film, so as to process the copper foil into a flexible circuit board; A molding assembly, mounted on the frame, for cutting and molding the flexible circuit board; as well as A transport assembly is installed on the frame, and is used to transport the copper foil in sequence to the copper foil unwinding assembly, the base film unwinding assembly, the circular knife assembly, the recovery film unwinding assembly, the first film tearing assembly, the first covering film assembly, the second film tearing assembly, the second covering film assembly and the forming assembly for processing.

10. The production and processing equipment for the precision die-cutting fuse process according to claim 9, characterized in that: The recycling film unwinding assembly comprises a recycling motor and a recycling roller. The output shaft of the recycling motor is drivingly connected to the recycling roller, and the recycling film is wound around the recycling roller.

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