Firecracker lead threading device

Abstract

The utility model discloses a firecracker lead threading device, and particularly relates to the technical field of firecracker lead threading, the firecracker lead threading device comprises a supporting seat and a vertical plate vertically arranged on the supporting seat, the vertical plate is axially and rotatably provided with a mounting cylinder for inserting a lead roll, and the first end of a main shaft rod fixedly mounted on the mounting cylinder is positioned on one side, opposite to the lead roll, of the supporting seat; the first end of the main shaft rod is fixedly provided with a resistance disc, and the resistance disc is fixedly provided with top air plates arranged in a circular array. According to the firecracker lead threading device provided by the utility model, the firecracker lead on the lead roll drives the resistance disc on the mounting cylinder to rotate when being stretched, and the air blowing assembly is started to blow air to the top air plate, so that the resistance disc is blocked when rotating; the effect of threading and tensioning the lead on the lead roll can be achieved by increasing or decreasing the blast resistance of the blast assembly to the resistance disc, and therefore adjustment is conducted according to the actual requirement of the lead to improve the threading stability of the lead.

Description

Technical Field

[0001] This utility model relates to the field of firecracker fuse threading technology, specifically to a firecracker fuse threading device. Background Technology

[0002] Threading the firecracker fuse is an important part of the firecracker production process. It involves guiding and combing the rolled fuse, and then cutting the fuse so that the cut fuse is inserted into the corresponding threading hole on the firecracker casing.

[0003] According to patent publication number CN203824441U, published on 2014-09-10, a fully automatic firecracker insertion machine is disclosed, including a frame, a firecracker fuse guide plate, a firecracker fuse diverter plate, a fuse cutting system, a firecracker fuse insertion plate, a firecracker insertion mold, a power system, a CNC system, etc. The number of fuse guide holes in the firecracker fuse guide plate is double that of the existing firecracker insertion machines; the number of fuse diverter holes in the firecracker fuse diverter plate is the same as that in the firecracker fuse guide plate, arranged in a single row on one side and in a triangular arrangement on the other side; the number of fuse insertion holes in the firecracker fuse insertion plate is the same as that in the firecracker fuse diverter plate, arranged in two rows in a triangular arrangement.

[0004] In the existing technology, including the aforementioned patents, current firecracker fuse-inserting machines can automatically thread firecracker fuses. Multiple rolls of firecracker fuse are laid on the machine, facilitating stretching and subsequent cutting. The fuse is fed into the machine via a specific supply device to ensure it maintains appropriate tension and position. Currently, fuse tension adjustment is mostly achieved through friction between the fuse roll and the mounting frame. However, this friction itself often cannot guarantee a stable tension range for the fuse. Excessive fuse tension can lead to fuse breakage, while insufficient tension can cause excessive fuse leakage and breakage. Utility Model Content

[0005] The purpose of this invention is to provide a firecracker fuse threading device that maintains the fuse tension within a stable range, thereby ensuring the stability of the fuse threading process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a firecracker fuse threading device, comprising a support base and a vertically arranged upright plate thereon, wherein an axially rotatable mounting cylinder for inserting fuse coils is provided on the upright plate, the first end of a main shaft fixedly mounted on the mounting cylinder is located on the side of the support base opposite to the fuse coil, and a resistance plate is fixedly mounted on the first end of the main shaft, wherein a top wind plate arranged in a circular array is fixedly mounted on the resistance plate, and a blower assembly is also included, wherein the top wind plate is located on the path of the blower assembly.

[0007] Preferably, the blower assembly includes a blower and an air guide, the air guide includes a ventilation pipe and an air adjustment port that are interconnected between the two, and the air guide is fixedly installed on the support base by a support rod. The blower is inserted into one end of the ventilation pipe opposite to the air adjustment port, and the port of the air adjustment port faces the top wind plate.

[0008] Preferably, an air regulating plate is provided inside the air regulating vent, and the air regulating plate is hinged inside the air regulating vent via a hinge shaft fixedly installed thereon.

[0009] Preferably, a force-bearing rod is fixedly installed on the hinge shaft, and a contact rod is axially rotatably provided on the force-bearing rod, the contact rod being movably disposed on the lead wire stretched on the lead wire coil.

[0010] Preferably, the outer wall of the mounting cylinder is hinged with multiple limiting plates, and the multiple limiting plates rotate synchronously to squeeze the lead coil. A baffle is fixedly installed on the mounting cylinder.

[0011] Preferably, the end of the mounting cylinder is provided with a pressing block for rotatable thread, and a push plate is slidably provided inside the mounting cylinder. A connecting rod is respectively hinged between the push plate and multiple limiting plates, and a main spring is symmetrically fixedly installed on the push plate.

[0012] Preferably, a bearing is provided between the main shaft and the vertical plate.

[0013] Preferably, the force-bearing rod is a rigid plastic rod.

[0014] Preferably, the contact rod is a plastic tube.

[0015] Preferably, the air regulating plate is a rigid plastic plate.

[0016] In the above technical solution, the firecracker fuse threading device provided by this utility model has the following beneficial effects: by fixing the fuse roll to the mounting cylinder, when the firecracker fuse on the fuse roll is stretched and threaded, the resistance plate on the mounting cylinder is rotated. By activating the blower assembly to blow air onto the top wind plate, the rotation of the resistance plate is obstructed. The increase or decrease of the blower assembly's air resistance to the resistance plate can achieve the effect of tensioning the fuse on the fuse roll, thereby adjusting according to the actual needs of the fuse to improve the stability of the fuse threading. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the upright plate provided in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the upright plate structure provided in an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the vertical plate provided in an embodiment of the present utility model;

[0021] Figure 4 This is an enlarged structural diagram of point A provided in an embodiment of the present utility model;

[0022] Figure 5 This is an enlarged structural diagram of section B provided in an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Support base; 2. Hinge shaft; 3. Lead wire reel; 4. Mounting cylinder; 5. Limiting plate; 6. Blower; 11. Vertical plate; 12. Support rod; 13. Ventilation duct; 14. Air outlet; 21. Air regulating plate; 22. Force rod; 23. Contact rod; 41. Main shaft; 42. Bearing; 43. Resistance plate; 44. Top air plate; 45. Baffle; 51. Connecting rod; 52. Push plate; 53. Main spring; 54. Extrusion block. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-5 As shown, a firecracker fuse threading device includes a support base 1 and a vertically arranged upright plate 11 thereon. An axially rotatable mounting cylinder 4 for inserting fuse coil 3 is provided on the upright plate 11. The first end of the main shaft 41 fixedly mounted on the mounting cylinder 4 is located on the side of the support base 1 opposite to the fuse coil 3, and a resistance plate 43 is fixedly mounted on the first end of the main shaft 41. A top wind plate 44 arranged in a circular array is fixedly mounted on the resistance plate 43. The device also includes a blower assembly, and the top wind plate 44 is located on the path of the blower assembly. By fixing the lead coil 3 to the mounting cylinder 4, when the firecracker lead on the lead coil 3 is stretched and threaded, the resistance plate 43 on the mounting cylinder 4 rotates. By activating the blower assembly to blow air onto the top wind plate 44, the rotation of the resistance plate 43 is obstructed. The increase or decrease of the blower assembly's resistance to the resistance plate 43 can achieve the effect of tensioning the lead on the lead coil 3. This can be adjusted according to the actual needs of the lead to improve the stability of the lead threading.

[0027] As a further technical solution provided by this utility model, the blower assembly includes a blower 6 and an air guide. The air guide includes a ventilation pipe 13 and an air regulating port 14 that are interconnected between the two. The air guide is fixedly installed on the support base 1 by a support rod 12. The blower 6 is inserted into one end of the ventilation pipe 13 opposite to the air regulating port 14. The port of the air regulating port 14 faces the top wind plate 44.

[0028] Specifically, the blower 6 is fixedly installed on the ventilation pipe 13. By aligning the port of the air regulating port 14 with the top wind plate 44 and positioning it in the direction of rotation when the top wind plate 44 is threaded, the blower 6 ventilates the ventilation pipe 13 when the top wind plate 44 rotates with the resistance plate 43. The blown air then blows along the air regulating port 14 towards the top wind plate 44, thereby creating wind resistance in the direction of rotation of the top wind plate 44, so that the firecracker fuse can be tensioned.

[0029] Furthermore, an air regulating plate 21 is provided inside the air regulating port 14, and the air regulating plate 21 is hinged inside the air regulating port 14 through a hinge shaft 2 fixedly installed thereon.

[0030] Specifically, by driving the air regulating plate 21 to flip inside the air regulating plate 21, the size of the air outlet 14 can be adjusted. When the air outlet 14 becomes smaller, then... Figure 4 As shown, the air velocity at the outlet of the air regulating vent 14 increases, and the increased air velocity increases the resistance of the top wind plate 44, thereby increasing the resistance that hinders the rotation of the mounting cylinder 4, and the firecracker fuse on the fuse reel 3 gradually straightens when stretched.

[0031] Furthermore, a force-bearing rod 22 is fixedly installed on the hinge shaft 2, and a contact rod 23 is axially rotatably provided on the force-bearing rod 22. The contact rod 23 is movably mounted on the lead wire stretched on the lead wire coil 3.

[0032] Specifically, such as Figure 1 and Figure 2 As shown, the lead wire is stretched on the lead wire reel 3 via the contact rod 23. When the stretched lead wire on the lead wire reel 3 relaxes and sinks, the contact rod 23 sinks accordingly, which in turn drives the force-bearing rod 22 to swing downwards. At this time, as... Figure 4As shown, when the force rod 22 swings down, it drives the hinge shaft 2 to rotate. The hinge shaft 2 drives the air regulating plate 21 to flip up to reduce the air outlet of the air regulating port 14. At this time, the air outlet of the air regulating port 14 becomes smaller, and the air speed at the air outlet of the air regulating port 14 increases. The increase in air speed increases the resistance of the top wind plate 44, which increases the resistance to the rotation of the mounting cylinder 4. As a result, the firecracker fuse on the fuse reel 3 is stretched and gradually straightens. Similarly, as the lead coil 3 gradually straightens, it drives the contact rod 23 to move upward, while the air regulating plate 21 and the contact rod 23 move downward in sync. At this time, the air outlet of the air regulating port 14 becomes larger, and the wind speed decreases to reduce the resistance to the top air plate 44. Then, the contact rod 23 moves according to the tension of the firecracker lead, and the wind speed at the air outlet of the air regulating port 14 is adjusted in time, thereby adjusting the resistance to the rotation of the mounting cylinder 4 in a timely manner, so that the firecracker lead is in a relatively stable tension range, improving the stability of the firecracker lead threading.

[0033] Furthermore, the outer wall of the mounting cylinder 4 is hinged with multiple limiting plates 5, and the multiple limiting plates 5 rotate synchronously to squeeze the lead wire coil 3. A baffle 45 is fixedly installed on the mounting cylinder 4.

[0034] Specifically, multiple limiting plates 5 are rotated synchronously to squeeze the lead coil 3, thereby causing the lead coil 3 to adhere to the baffle 45. At this time, the lead coil 3 is clamped and fixed by the baffle 45 and multiple limiting plates 5, so that the mounting cylinder 4 can rotate synchronously with the lead coil 3.

[0035] Furthermore, the end of the mounting cylinder 4 is threadedly provided with a pressing block 54, and a push plate 52 is slidably provided inside the mounting cylinder 4. A connecting rod 51 is hinged between the push plate 52 and multiple limiting plates 5 respectively, and a main spring 53 is symmetrically fixedly installed on the push plate 52.

[0036] Specifically, the lead coil 3 is fitted onto the outer wall of the mounting cylinder 4, and then the pressing block 54 is rotated by a thread to make the pressing block 54 press the push plate 52 to slide. Then, the push plate 52, in conjunction with multiple connecting rods 51, pushes multiple limiting plates 5 to rotate synchronously, thereby making the limiting plates 5, in conjunction with the baffle 45, quickly clamp and fix the lead coil 3. The main spring 53 is compressed and stored when the push plate 52 pushes the limiting plate 5, and when the pressing block 54 resets, the main spring 53 releases the stored force to push the push plate 52 to reset, and the limiting plate 5 rotates and resets to release the clamping and obstruction of the lead coil 3.

[0037] Furthermore, a bearing 42 is provided between the main shaft 41 and the vertical plate 11.

[0038] Specifically, the inner shaft of bearing 42 is fixedly installed on the main shaft 41, and the outer shaft of bearing 42 is fixedly installed on the vertical plate 11. By utilizing bearing 42, the resistance to the rotation of mounting cylinder 4 is reduced, thereby making the rotation of mounting cylinder 4 smoother.

[0039] Furthermore, the load-bearing rod 22 is a rigid plastic rod.

[0040] Furthermore, the contact rod 23 is made of plastic tubing.

[0041] Furthermore, the air regulating plate 21 is made of rigid plastic.

[0042] Specifically, by using plastics for the force-bearing rod 22, the contact rod 23, and the air regulating plate 21, the downward pressure on the lead wire is reduced, allowing for more sensitive capture of the lead wire tension state when the lead wire is tensioned, and better adjustment of the air regulating plate 21's flip angle.

[0043] Working principle: The lead wire roll 3 is sleeved on the outer wall of the mounting cylinder 4. Then, the pressing block 54 is rotated by the thread to make the pressing block 54 press the push plate 52 to slide. Then, the push plate 52, in conjunction with multiple connecting rods 51, pushes multiple limiting plates 5 to rotate synchronously, thereby making the limiting plates 5, in conjunction with the baffle 45, quickly clamp and fix the lead wire roll 3. The lead wire is stretched on the lead wire roll 3 by the contact rod 23. When the stretched lead wire on the lead wire roll 3 relaxes and sinks, the contact rod 23 sinks accordingly, which then drives the force rod 22 to swing down. At this time, if Figure 4 As shown, when the force rod 22 swings down, it drives the hinge shaft 2 to rotate. The hinge shaft 2 drives the air regulating plate 21 to flip up to reduce the air outlet of the air regulating port 14. At this time, the air outlet of the air regulating port 14 becomes smaller, and the air speed at the air outlet of the air regulating port 14 increases. The increase in air speed increases the resistance of the top wind plate 44, which increases the resistance to the rotation of the mounting cylinder 4. As a result, the firecracker fuse on the fuse reel 3 is stretched and gradually straightens. Similarly, as the lead coil 3 gradually straightens, it drives the contact rod 23 to move upward, while the air regulating plate 21 and the contact rod 23 move downward in sync. At this time, the air outlet of the air regulating port 14 becomes larger, and the wind speed decreases to reduce the resistance to the top air plate 44. Then, the contact rod 23 moves according to the tension of the firecracker lead, and the wind speed at the air outlet of the air regulating port 14 is adjusted in time, thereby adjusting the resistance to the rotation of the mounting cylinder 4 in a timely manner, so that the firecracker lead is in a relatively stable tension range, improving the stability of the firecracker lead threading.

[0044] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for threading a fuse into a firecracker, characterized in that, The application relates to a lead winding device, which comprises a support base (1) and a vertical plate (11) vertically arranged on the support base (1), an installation cylinder (4) for inserting a lead winding (3) is axially arranged on the vertical plate (11), a first end of a main shaft rod (41) fixedly arranged on the installation cylinder (4) is located on a side of the support base (1) opposite to the lead winding (3), a resistance disc (43) is fixedly arranged on the first end of the main shaft rod (41), a plurality of top wind plates (44) arranged in a circular array are fixedly arranged on the resistance disc (43), and an air blowing assembly is arranged, and the top wind plates (44) are located on a blowing path of the air blowing assembly.

2. The firecracker fuse threading device according to claim 1, wherein, The air blowing assembly comprises an air blower (6) and an air guide part, the air guide part comprises a ventilation pipe (13) and an air adjusting port (14) which are communicated with each other, the air guide part is fixedly arranged on the support base (1) through a support rod (12), the air blower (6) is inserted into one end of the ventilation pipe (13) opposite to the air adjusting port (14), and the port of the air adjusting port (14) faces the top wind plates (44).

3. The firecracker fuse threading device according to claim 2, wherein, An air adjusting plate (21) is arranged in the air adjusting port (14), and the air adjusting plate (21) is hingedly arranged in the air adjusting port (14) through a hinge shaft (2) fixedly arranged on the air adjusting plate (21).

4. The firecracker fuse threading device according to claim 3, wherein, A force receiving rod (22) is fixedly arranged on the hinge shaft (2), and a contact round rod (23) is axially arranged on the force receiving rod (22), and the contact round rod (23) is movably arranged on the lead wire of the lead winding (3).

5. The firecracker fuse threading device according to claim 1, wherein, A plurality of limiting plates (5) are hingedly arranged on the outer wall of the installation cylinder (4), and the plurality of limiting plates (5) are synchronously flipped to extrude the lead winding (3), and a baffle (45) is fixedly arranged on the installation cylinder (4).

6. The firecracker fuse threading device according to claim 1, wherein, An extrusion block (54) is threadedly arranged on the end of the installation cylinder (4), a push plate part (52) is slidably arranged in the installation cylinder (4), a connecting rod (51) is hingedly arranged between the push plate part (52) and the plurality of limiting plates (5) respectively, and a main spring (53) is symmetrically fixedly arranged on the push plate part (52).

7. The firecracker fuse threading device according to claim 1, wherein, A bearing (42) is arranged between the main shaft rod (41) and the vertical plate (11).

8. The firecracker fuse threading device according to claim 4, wherein, The force receiving rod (22) is a hard plastic rod.

9. The firecracker fuse threading device according to claim 4, wherein, The contact round rod (23) is a plastic pipe.

10. The firecracker fuse threading device according to claim 3, wherein, The air adjusting plate (21) is a hard plastic plate.

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