A strip folding mechanism of a resistance strip folding machine

Abstract

The utility model discloses a kind of strip folding mechanism of resistance strip folding machine, including mounting seat, lifting assembly and knife edge mould, the lifting assembly is fixed in the top of mounting seat, knife edge mould includes upper knife edge mould and lower knife edge mould, wherein upper knife edge mould bottom surface is equipped with horizontal mould groove, upper end cooperation mould mounting block is connected with lifting assembly assembly, lower knife edge mould is fixed on the surface of mounting seat, upper surface is equipped with horizontal ridge, the lower knife edge mould and upper knife edge mould are set to be opposite up and down, chip resistance strip folding line is located between upper mould groove and ridge, when upper knife edge mould is lowered under the control of lifting assembly, the mould groove of upper knife edge mould and the ridge of lower knife edge mould mutually coincide to realize the breaking of chip resistance.This utility model provides a kind of strip folding mechanism of resistance strip folding machine, realize the high-precision strip folding processing of small size chip resistance, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of resistance processing, specifically to a strip-folding mechanism for a resistance strip-folding machine. Background Technology

[0002] Currently, the chip resistors used in electronic substrates are mainly separated from a chip resistor ceramic sheet. This chip resistor ceramic sheet is formed with chip resistors, and each chip resistor is separated by a folding line. In order to remove the chip resistors one by one from the chip resistor ceramic sheet and arrange them as expected, a resistor folding machine is needed to perform continuous folding operations.

[0003] However, in actual production, due to the small size of the chip resistors, existing resistor folding machines cannot accurately fold the folding lines, and the folding distance is inconvenient to adjust, resulting in unstable processing quality and low folding yield, which cannot meet the actual production needs. Manual folding of small-sized chip resistor ceramic sheets is still required, which not only has high processing costs but also prolongs processing time and affects the company's production efficiency. Utility Model Content

[0004] To address the deficiencies and shortcomings of existing technologies, this utility model provides a folding mechanism for a resistor folding machine, enabling high-precision folding processing of small-sized chip resistors and improving production efficiency.

[0005] A folding mechanism for a resistor folding machine includes a mounting base, a lifting assembly, and a cutting die. The lifting assembly is fixed above the mounting base. The cutting die includes an upper cutting die and a lower cutting die. The bottom surface of the upper cutting die has a transverse groove, and its upper end is connected and assembled with the lifting assembly in conjunction with a die mounting block. The lower cutting die is fixed on the surface of the mounting base, and its upper surface has a transverse protrusion. The lower cutting die and the upper cutting die are arranged vertically opposite each other. The folding line of the chip resistor is located between the upper groove and the protrusion. When the upper cutting die descends under the control of the lifting assembly, the groove of the upper cutting die and the protrusion of the lower cutting die engage with each other to break the chip resistor.

[0006] Preferably, the mounting base has a base and a gantry frame, the base is provided with a rear stop strip and two sets of side limiting blocks, and an installation area is formed between the rear stop strip and the two sets of side limiting blocks.

[0007] Preferably, the mold mounting block is provided with a limiting plate around its perimeter, and a positioning post is provided on the side of the upper cutting edge mold. When the upper cutting edge mold is installed, its upper end face abuts against the limiting plate, and the positioning hole on the side of the upper cutting edge mold cooperates with the positioning post on the side of the mold mounting block.

[0008] Preferably, the lower cutting edge mold is installed within the installation area formed by the rear stop bar and the side limiting block.

[0009] Preferably, the mold groove has a triangular structure with an arc-shaped bottom, and the protrusion cooperates with the mold groove to form a triangular structure with an arc-shaped top.

[0010] Preferably, the lifting assembly is a lifting cylinder mounted on a portal frame, with its telescopic end passing through the portal frame and fixed to the mold mounting block, and the lifting cylinder is provided with a protective cover.

[0011] Beneficial effects: The strip folding mechanism of the resistance strip folding machine disclosed in this utility model has the following beneficial effects: by combining multiple limiting structures with the cutting edge mold, the cutting edge mold can be installed quickly and with high precision, reducing the installation difficulty, and subsequent replacement of the cutting edge mold does not require repeated adjustment of the position;

[0012] The design of the cutting edge mold enables precise positioning of the folding line. The mold groove with a specific structure cooperates with the convex strip to achieve efficient and high-precision folding processing of small-sized chip resistors. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of an embodiment of the present utility model;

[0014] Figure 2 This is a partial structural diagram of an embodiment of the present utility model;

[0015] Figure 3 This is a structural diagram of the cutting edge mold in an embodiment of this utility model. Detailed Implementation

[0016] To further understand this utility model, preferred embodiments of this utility model are described below in conjunction with the accompanying drawings and examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the scope of the utility model claims.

[0017] This utility model discloses a folding mechanism for a resistor folding machine, which realizes the folding processing of chip resistors. The specific structure is as follows: Figures 1-2 As shown, the device includes a mounting base 1, a lifting assembly 2, and a cutting edge mold 3. The mounting base has a base 11 and a gantry frame 12. The lifting assembly is fixed on the gantry frame. The cutting edge mold includes an upper cutting edge mold 31 and a lower cutting edge mold 32. The upper end of the upper cutting edge mold is connected and assembled with the lifting assembly in conjunction with a mold mounting block 4. The lower cutting edge mold is fixed on the surface of the base. The lower cutting edge mold and the upper cutting edge mold are arranged vertically opposite each other. The chip resistor fold line is located between the two. When the upper cutting edge mold descends under the control of the lifting assembly, the upper cutting edge mold and the lower cutting edge mold cooperate to break the chip resistor.

[0018] Specifically, the lifting assembly is a lifting cylinder installed on the gantry frame, with its telescopic end passing through the gantry frame and fixed to the mold mounting block. The lifting cylinder is provided with a protective cover 5.

[0019] The base surface is provided with a rear stop bar 13 and two sets of side limiting blocks 14. An installation area is formed between the rear stop bar and the two sets of side limiting blocks. The lower cutting die is assembled in the installation area. The cooperation between the rear stop bar and the side limiting blocks limits the installation position of the lower cutting die. When the cutting die is replaced in the future, there is no need to repeatedly adjust the installation position.

[0020] The upper end of the mold mounting block is connected to the telescopic end of the lifting assembly, and the mold mounting block is provided with a limiting plate 41 around its perimeter. The side of the upper cutting edge mold is provided with a positioning post. When the upper cutting edge mold is installed, its upper end face abuts against the limiting plate, and the positioning hole 311 on the side of the upper cutting edge mold cooperates with the positioning post on the side of the mold mounting block. When the upper cutting edge mold is installed, the positioning post limits the left and right position, while the limiting plate limits the up and down position, thereby accurately determining the installation position of the upper cutting edge mold and reducing the difficulty of its installation and subsequent position adjustment.

[0021] like Figure 3 As shown, the bottom surface of the upper cutting edge mold is provided with a horizontal mold groove 312, while the upper surface of the lower cutting edge mold is provided with a horizontal protrusion 321. The mold groove is a triangular structure with an arc-shaped bottom. The protrusion cooperates with the mold groove to form a triangular structure, and the top is arc-shaped. When in use, the upper cutting edge mold is subjected to external force and cooperates with the lower cutting edge mold, and the protrusion cooperates with the mold groove to realize the strip bending processing of the chip resistor.

[0022] This utility model combines multiple limiting structures with the cutting edge mold to achieve rapid and high-precision installation of the cutting edge mold, reducing installation difficulty. Subsequent replacement of the cutting edge mold also eliminates the need for repeated position adjustments. The design of the cutting edge mold enables precise positioning of the folding line. The mold groove and protrusion of a specific structure cooperate with each other to achieve efficient and high-precision folding processing of small-sized chip resistors.

[0023] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the scope of the utility model's technical solution.

Claims

1. A strip-folding mechanism for a resistance strip-folding machine, characterized in that: The device includes a mounting base, a lifting assembly, and a cutting edge mold. The lifting assembly is fixed above the mounting base. The cutting edge mold includes an upper cutting edge mold and a lower cutting edge mold. The bottom surface of the upper cutting edge mold has a horizontal groove, and its upper end is connected and assembled with the lifting assembly in conjunction with a mold mounting block. The lower cutting edge mold is fixed on the surface of the mounting base, and its upper surface has a horizontal protrusion. The lower cutting edge mold and the upper cutting edge mold are arranged vertically opposite each other. The chip resistor breakage line is located between the upper groove and the protrusion. When the upper cutting edge mold descends under the control of the lifting assembly, the groove of the upper cutting edge mold and the protrusion of the lower cutting edge mold engage with each other to break the chip resistor.

2. The strip-folding mechanism of a resistance strip-folding machine according to claim 1, characterized in that: The mounting base has a base and a gantry frame. The base is provided with a rear stop strip and two sets of side limiting blocks, and an installation area is formed between the rear stop strip and the two sets of side limiting blocks.

3. The strip-folding mechanism of a resistance strip-folding machine according to claim 1, characterized in that: The mold mounting block is provided with limiting plates around its perimeter, and positioning posts are provided on the side where the upper cutting edge mold is installed. When the upper cutting edge mold is installed, its upper end face abuts against the limiting plates, and the positioning holes on the side of the upper cutting edge mold cooperate with the positioning posts on the side of the mold mounting block.

4. The strip-folding mechanism of a resistance strip-folding machine according to claim 2, characterized in that: The lower cutting edge mold is installed in the installation area formed by the rear stop bar and the side limiting block.

5. The strip-folding mechanism of a resistance strip-folding machine according to claim 1, characterized in that: The mold groove has a triangular structure with an arc-shaped bottom. The protrusion matches the mold groove and has a triangular structure with an arc-shaped top.

6. The strip-folding mechanism of a resistance strip-folding machine according to claim 2, characterized in that: The lifting assembly is a lifting cylinder installed on a portal frame. Its telescopic end passes through the portal frame and is fixed to the mold mounting block. The lifting cylinder is provided with a protective cover.

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