Firecracker lead fixed-length cutting device

By using the wire feeding and limiting design of the firecracker fuse length cutting device, continuous length cutting and straight conveying of the fuse are achieved, solving the problems of low cutting efficiency and insufficient precision in the existing technology, and improving cutting efficiency and precision.

CN223685497UActive Publication Date: 2025-12-19WANZAI XINRONG FIREWORKS MFG CO LTD
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Patent Information

Application Number
CN202423311014.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-19
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing methods for cutting firecracker fuses are difficult to achieve continuous and fixed-length cuts, resulting in low cutting efficiency. Furthermore, the fuse is prone to bending during cutting, affecting cutting accuracy.

Method used

A firecracker fuse length-cutting device was designed, including a wire feeding assembly, a limiting assembly, and a tension assembly. Through the cooperation of the wire feeding roller, cam, and cutter, continuous length-cutting of the fuse is achieved, and the fuse is kept in a straight line by a sliding plate and a rotating wheel to ensure cutting accuracy.

Benefits of technology

It improves the efficiency and precision of lead wire cutting, ensures that the lead wire remains straight during cutting, avoids errors caused by bending, and enhances the cutting effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of firecracker processing, in particular to a firecracker lead fixed-length cutting device. The technical problems that when cutting is carried out in an existing cutting mode, continuous and fixed-length cutting is difficult to carry out on a lead, so that the lead cutting efficiency is low, the lead cannot be conveyed and cut in a straight and straight mode conveniently when the lead is cut, the lead is prone to bending, the cutting precision is reduced, and the cutting efficiency is high are solved. Therefore, the lead cutting effect is not good. A firecracker lead fixed-length cutting device comprises a base, a cutter connected to the base in a sliding mode and two connecting plates fixedly connected to the cutter. When the feeding roller conveys the lead to one side, the sliding plate can linearly convey the lead to one side, and the lead is stably and straightly conveyed under the action of the rotating wheel, so that the lead is ensured to be in a straight state during cutting, errors caused by bending of the lead during cutting are prevented, and the lead cutting effect is enhanced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a firecracker processing technical field especially relates to a firecracker fuse fixed length cutting device. BACKGROUND

[0002] Firecracker as a kind of traditional folk custom goods, it is widely applied in various celebrations, festival activities, its production process involves multiple key links, and the cutting of firecracker fuse is a crucial process, when cutting fuse, usually through the staff handwork using cutting tool according to the length required cutting, to achieve the purpose of fixed length cutting.

[0003] Because the fuse is relatively soft, and the existing cutting mode is difficult to cut continuously and fixed length to the fuse, thereby leading to the low efficiency of fuse cutting, and it is not convenient to keep the fuse straight and linearly conveying cutting when cutting fuse, in turn leading to the fuse bending, in turn leading to the precision reduction when cutting, thereby leading to the poor effect of fuse cutting. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned shortcomings, the utility model provides a firecracker fuse fixed length cutting device, can continuously and fixed length cutting to the fuse to improve the efficiency of fuse cutting, and can keep the fuse straight and linearly conveying cutting when cutting to improve cutting precision, thereby enhancing the effect of cutting.

[0005] Technical scheme is as follows: a firecracker fuse fixed length cutting device, it includes:

[0006] Base;

[0007] Sliding type connecting cutter on base;

[0008] Two connecting plates fixedly connected on cutter;

[0009] Compression spring is connected between two connecting plates and cutter respectively;

[0010] Two fuses are placed on base;

[0011] Send line assembly, be equipped with on base;

[0012] Limiting assembly, be equipped with on base;

[0013] Tension assembly, be equipped with on base.

[0014] As a further preferred scheme, the base is provided with two limiting grooves.

[0015] As a further preferred, the wire feeding assembly comprises a motor fixed to one side of the base; a rotating rod fixed to the output shaft of the motor, the rotating rod being rotatably connected to the base; a wire feeding roller fixed to the rotating rod; and cams fixed to both sides of the rotating rod.

[0016] As a further preferred, the wire feeding roller is made of rubber, and the rubber wire feeding roller is used for feeding the lead wire.

[0017] As a further preferred, the limiting assembly comprises a fixed frame fixed to the base; two sliding plates slidably connected to the fixed frame, the bottom of each of the two sliding plates being rotatably connected to a plurality of rotating wheels; and a tension spring connected between each of the two sliding plates and the fixed frame.

[0018] As a further preferred, the tension assembly comprises a first mounting frame fixed to the base; a tension roller rotatably connected to the first mounting frame; a second mounting frame fixed to the base; and an infeed roller rotatably connected to the second mounting frame.

[0019] The present application has the following advantages: 1. The rotating rod drives the wire feeding roller to rotate one circle, and simultaneously drives the cams to rotate one circle to press the cutting knife to cut the fed lead wire, thereby continuously cutting the lead wire to a fixed length, so as to improve the cutting efficiency of the lead wire.

[0020] 2. The feeding roller feeds the lead wire to one side, and under the action of the tension spring, the sliding plate keeps feeding the lead wire to one side in a straight line, and under the action of the rotating wheel, the lead wire is stably and flatly fed, thereby ensuring that the lead wire is in a flat state during cutting, thereby preventing the lead wire from bending to cause errors during cutting, so as to enhance the cutting effect of the lead wire. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic view of the present application.

[0022] Figure 2 It is a first partial three-dimensional structure schematic view of the present application.

[0023] Figure 3 It is a second partial three-dimensional structure schematic view of the present application.

[0024] Figure 4 It is a third partial three-dimensional structure schematic view of the present application.

[0025] Figure 5 It is a fourth partial three-dimensional structure schematic view of the present application.

[0026] Figure 6 This is a three-dimensional structural diagram of the fourth part of this utility model.

[0027] Wherein: 0-lead wire, 1-base, 2-cutter, 3-connecting plate, 4-compression spring, 5-motor, 6-rotating rod, 7-feeding roller, 8-cam, 9-fixed frame, 10-sliding plate, 11-rotating wheel, 12-tension spring, 13-first mounting frame, 14-tension roller, 15-second mounting frame, 16-feeding roller. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installing," "connecting," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0029] Example 1: A firecracker fuse length cutting device, such as Figures 1-6 As shown, it includes:

[0030] Base 1;

[0031] A cutter 2 is slidably connected to the base 1;

[0032] Two connecting plates 3 are fixedly connected to the cutter 2;

[0033] Compression springs 4 are respectively connected between the two connecting plates 3 and the cutter 2;

[0034] Two leads 0 are placed on base 1;

[0035] A wire feeding assembly, used to feed lead 0, is mounted on base 1;

[0036] A limiting component, used to limit lead 0, is provided on base 1;

[0037] Tension assembly, used to keep lead 0 taut, is located on base 1.

[0038] The base 1 has two limiting grooves, which are used to limit the lead wire 0.

[0039] The wire feeding assembly comprises a motor 5 fixed to one side of the base 1; a rotating rod 6 fixed to the output shaft of the motor 5, which is rotatably connected to the base 1; a wire feeding roller 7 fixed to the rotating rod 6; and cams 8 fixed to both sides of the rotating rod 6.

[0040] The wire feeding roller 7 is made of rubber, which is used to convey the lead wire 0.

[0041] The limiting assembly comprises a fixed frame 9 fixed to the base 1; two sliding plates 10 slidably connected to the fixed frame 9, the bottom of each of the two sliding plates 10 being rotatably connected to a plurality of rotating wheels 11; and a tension spring 12 connected between each of the two sliding plates 10 and the fixed frame 9.

[0042] The tension assembly comprises a first mounting frame 13 fixed to the base 1; a tension roller 14 rotatably connected to the first mounting frame 13; a second mounting frame 15 fixed to the base 1; and an infeed roller 16 rotatably connected to the second mounting frame 15.

[0043] When it is necessary to cut the lead wire 0, the worker first passes the lead wire 0 from below the wire feeding roller 7 along the limiting groove on the base 1, then controls the output shaft of the motor 5 to rotate, which drives the rotating rod 6 to rotate, and the rotating rod 6 drives the wire feeding roller 7 to rotate, which moves the lead wire 0 to the side close to the cutter under the action of friction. At the same time, the rotating rod 6 drives the cams 8 to rotate, which presses the two connecting plates 3 to move downward, and the connecting plates 3 drive the cutter to move downward, and the compression spring 4 is compressed. The cutter moves downward to cut the lead wire 0 fed out, the rotating rod 6 continues to rotate to drive the cams 8 to rotate and disengage from the connecting plates 3, the compression spring 4 resets to drive the cutter and the connecting plates 3 to reset. Repeating this process, the rotating rod 6 drives the wire feeding roller 7 to rotate one circle, and at the same time, the cams 8 rotate one circle to press the cutter to cut the lead wire 0 fed out, thereby continuously cutting the lead wire 0 to a fixed length, improving the cutting efficiency of the lead wire 0. The infeed roller conveys the lead wire 0 to one side, and at the same time, the sliding plates 10 keep the lead wire 0 straightly conveyed to one side under the action of the tension spring 12, and the rotating wheels 11 stably and flatly convey the lead wire 0, thereby ensuring that the lead wire 0 is flat during cutting, preventing errors caused by bending of the lead wire 0 during cutting, and enhancing the cutting effect of the lead wire 0. The wire feeding roller 7 feeds the lead wire 0 under the action of the infeed roller 16 and the tension roller 14, so that the lead wire 0 is straight, thereby keeping the lead wire 0 at an appropriate tension during feeding, avoiding relaxation of the lead wire 0 affecting the cutting accuracy, and further enhancing the cutting effect. After the lead wire 0 is cut, the worker collects the cut lead wire 0, and turns off the motor 5.

[0044] While the present disclosure has been described with respect to a limited number of embodiments, those skilled in the art will appreciate numerous modifications and variations therefrom. It is intended that the appended claims cover all such modifications and variations as fall within the scope of this present disclosure.

Claims

1. A firecracker fuse length-cutting device, characterized in that: The utility model relates to a cutting device for wire, which comprises: a base (1); a cutting device (2) slidably connected to the base (1); two connecting plates (3) fixedly connected to the cutting device (2); compression springs (4) respectively connected between the two connecting plates (3) and the cutting device (2); two wires (0) placed on the base (1); a wire feeding assembly provided on the base (1); a limiting assembly provided on the base (1); a tension assembly provided on the base (1).

2. The device according to claim 1, wherein the device is characterized by: The base (1) is provided with two limiting grooves.

3. The device according to claim 2, wherein the device is characterized by: The wire feeding assembly comprises a motor (5) fixedly connected to one side of the base (1), a rotating rod (6) fixedly connected to an output shaft of the motor (5), the rotating rod (6) being rotatably connected to the base (1), a wire feeding roller (7) fixedly connected to the rotating rod (6), and cams (8) fixedly connected to both sides of the rotating rod (6).

4. The device according to claim 3, wherein the device is characterized by: The wire feeding roller (7) is made of rubber.

5. The device according to claim 4, wherein the device is characterized by: The limiting assembly comprises a fixing frame (9) fixedly connected to the base (1), two sliding plates (10) slidably connected to the fixing frame (9), a plurality of rotating wheels (11) rotatably connected to the bottom of each of the two sliding plates (10), and a tension spring (12) connected between each of the two sliding plates (10) and the fixing frame (9).

6. The device according to claim 5, wherein the device is characterized by: The tension assembly comprises a first mounting frame (13) fixedly connected to the base (1), a tension roller (14) rotatably connected to the first mounting frame (13), a second mounting frame (15) fixedly connected to the base (1), and an incoming wire roller (16) rotatably connected to the second mounting frame (15).