Sliding sealing device for firework charging machine

Abstract

The utility model discloses a sliding sealing device for a firework charging machine, which belongs to the technical field of firework charging machine equipment and comprises a gunpowder temporary storage box, long notches are arranged on two sides of the gunpowder temporary storage box, and each long notch is provided with a scraper mechanism through a sliding sealing mechanism. The sliding sealing mechanism comprises a sealing block and a sealing shaft which are arranged on the outer side of the long notch; a first notch matched with the long notch is formed in one side of the sealing block, a second notch matched with the sealing shaft is formed in the other side of the sealing block, and the first notch is communicated with the second notch; the scraper mechanism is arranged on the sealing shaft, and the sealing shaft slides along the second notch to drive the scraper mechanism to slide. The powder charging machine is used for solving the problems that an existing powder charging machine is inconvenient to seal, and propellant powder dust can escape to a production workshop.

Description

Technical Field

[0001] This utility model belongs to the technical field of fireworks loading machine equipment, specifically a sliding sealing device for fireworks loading machines. Background Technology

[0002] Combination fireworks typically consist of a launch tube and an effect inner tube. During the production of combination fireworks, gunpowder needs to be filled into the launch tube. Traditionally, gunpowder filling is done manually using special molds. However, some existing systems use mechanical equipment for gunpowder filling. For example, patent document CN117490503A discloses a combination fireworks propellant filling device and process. The device uses a propellant metering plate to determine and dispense the amount of propellant into the launch tube. Then, a suction plate and a discharge plate guide the propellant from the discharge hole of the metering plate into the launch tube. After one propellant filling, a scraper motor and a reducer drive a scraper to rotate and scrape the remaining propellant into the discharge hole of the metering plate for a second filling.

[0003] However, the device has the following problems: the space where the scraper is temporarily stored with the propellant is not sealed. During the movement of the scraper, dust will be carried up. Since the scraping assembly is not sealed, the dust carried up will enter the production workshop. Since the propellant is a high explosive, the dust carried up from the scraping assembly will pose a safety hazard in the workshop. Utility Model Content

[0004] To address the above problems, this utility model provides a sliding sealing device for fireworks loading machines, which solves the problem that existing loading machines are not easy to seal, resulting in propellant dust escaping into the production workshop.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A sliding sealing device for a fireworks loading machine includes a gunpowder storage box. The gunpowder storage box has elongated slots on both sides, and a scraper mechanism is installed in each slot via a sliding sealing mechanism. The sliding sealing mechanism includes a sealing block and a sealing shaft located outside the elongated slots. One side of the sealing block has a first slot that mates with the elongated slots, and the other side has a second slot that mates with the sealing shaft. The first slot and the second slot are connected. The scraper mechanism is mounted on the sealing shaft, and the sealing shaft slides along the second slot, causing the scraper mechanism to slide.

[0007] As a further improvement to the above technical solution, a sealing sheet is provided on the outer side of the second groove, and the end face of the sealing sheet is in contact with the sealing shaft.

[0008] As a further improvement to the above technical solution, the lower side of the long slot is inclined, the lower part of the first slot is inclined, and the inclined surface of the first slot and the inclined surface of the long slot are located on the same plane.

[0009] As a further improvement to the above technical solution, bushings are provided on the side plates at both ends of the long slot, and the sealing shaft is slidably disposed within the bushings.

[0010] As a further improvement to the above technical solution, a sealing ring is provided inside the bushing, the inner diameter of the sealing ring is matched with the diameter of the sealing shaft, and the outer diameter of the sealing ring is matched with the inner diameter of the bushing.

[0011] As a further improvement to the above technical solution, the scraper mechanism includes a flipping shaft and a scraper, and the width of the connection between the first slot and the second slot matches the diameter of the flipping shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: Since a groove matching the shape of the sealing shaft is provided on one side of the sealing block, the connection between the second groove and the first groove can be sealed through the cooperation of the second groove and the sealing shaft during the sliding process of the sealing shaft. This can prevent the propellant dust carried up during the scraper movement from escaping into the production workshop from the long groove opening. In order to prevent dust from escaping into the production workshop from the front and rear ends of the sealing block, a sealing ring is provided in the bushing. The inner diameter and outer diameter of the sealing ring are respectively matched with the sealing shaft and the bushing to achieve sealing of the front and rear ends of the sealing block. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention installed on the equipment.

[0014] Figure 2 This is a top view of the structure of this utility model.

[0015] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA.

[0016] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0017] Figure 5 This is a three-dimensional structural diagram of the sliding sealing mechanism of this utility model.

[0018] Figure 6 This is a three-dimensional structural diagram of the sliding sealing mechanism of this utility model from another perspective.

[0019] Figure 7 This is a three-dimensional structural diagram of the present invention (without the gunpowder storage box).

[0020] Figure 8 This is a three-dimensional structural diagram of the gunpowder storage box of this utility model (with half of the side wall removed).

[0021] In the diagram: 1. Gunpowder storage box; 2. Sealing block; 3. Sealing shaft; 4. Tilting shaft; 5. Scraper; 11. Long groove; 21. Sealing plate; 22. First groove; 23. Second groove; 6. Bushing; 7. Sealing ring. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the protection scope of this utility model in any way. Example

[0023] like Figure 1-8 As shown, a sliding sealing device for a fireworks charging machine includes a gunpowder storage box 1. Long slots 11 are provided on both the left and right sides of the gunpowder storage box 1. A sliding sealing mechanism is provided on the outer side of the long slots 11. The sliding sealing mechanism includes a sealing block 2 and a sealing shaft 3. Figure 5-6 As shown, the sealing block 2 is divided into upper and lower parts, respectively disposed on the upper and lower sides of the long slot 11; the upper and lower sealing blocks 2 are provided with a first slot on the side near the long slot 11, wherein the sidewall of the first slot and the sidewall of the long slot 11 are both inclined to one side to form a slope, and the side of the long slot 11 and the first slot near the interior of the temporary storage box is lower than the side away from the interior of the temporary storage box. On the other side of the sealing block 2, a semi-circular or arc-shaped second slot that matches the external shape of the sealing shaft 3 is provided, and the second slot, the first slot and the second slot are connected; as Figure 5-8 As shown, bushings 6 are provided at both ends of the sealing block 2, wherein the center of the bushing 6 coincides with the center of the second groove. The sealing shaft 3 is slidably disposed inside the bushing 6 and can slide along the axis of the bushing 6. The bushing 6 is mounted on the protruding mounting surfaces of the front and rear side walls of the gunpowder storage box 1 by bolts.

[0024] The scraper 5 mechanism includes a tilting shaft 4 mounted on the sealing shafts 3 on both sides of the gunpowder storage box 1. A scraper 5 is mounted on the tilting shaft 4. When the sealing shaft 3 moves along the axis of the second slot, the tilting shaft 4 drives the scraper 5 to move within the gunpowder storage box 1, thereby scraping the propellant into the discharge hole of the metering plate. At the same time, since a groove matching the shape of the sealing shaft 3 is provided on one side of the sealing block 2, the propellant dust carried by the scraper 5 during its movement can be prevented from escaping from the long slot 11 into the production workshop. To prevent dust from escaping into the production workshop from the front and rear ends of the sealing block 2, a sealing ring 7 is provided inside the bushing 6. The inner and outer diameters of the sealing ring 7 are respectively matched with the sealing shaft 3 and the bushing 6 to seal the front and rear ends of the sealing block 2.

[0025] To avoid excessive friction between the sealing shaft 3 and the sealing block 2 during sliding, which could lead to wear of the sealing block 2 or high resistance to movement of the sealing shaft 3, a gap is provided between the sealing shaft 3 and the second groove. To prevent dust from escaping through the gap, a sealing plate 21 is provided on the outside of the second groove. One side of the sealing plate 21 is connected to the sealing block 2 by bolts, and the end face of the sealing plate 21 at the other end is in contact with the surface of the sealing shaft 3.

[0026] To facilitate the return of dust that falls onto the long slot 11 or the first slot to the gunpowder storage box 1, the lower side of the long slot 11 needs to be inclined at a certain angle, and the lower side of the first slot also needs to be inclined at a certain angle. At the same time, to facilitate the smooth sliding of dust that falls onto the first slot into the gunpowder storage box 1, the junction of the inclined surface of the long slot 11 and the inclined surface of the first slot needs to be set in the same plane, and preferably the inclination angles of the two should be set to the same angle.

[0027] As a preferred embodiment of the above, the scraper 5 mechanism includes a flipping shaft 4 and a scraper 5, and the width of the connection between the first groove and the second groove matches the diameter of the flipping shaft 4.

[0028] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only used to help understand the method and core ideas of this utility model.

[0030] The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principle of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A sliding sealing device for a fireworks loading machine, characterized in that, The device includes a gunpowder storage box (1), which has long slots (11) on both sides. The long slots (11) are equipped with a scraper (5) mechanism through a sliding sealing mechanism. The sliding sealing mechanism includes a sealing block (2) and a sealing shaft (3) located on the outside of the long slots (11). The sealing block (2) has a first slot on one side that mates with the long slots (11) and a second slot on the other side that mates with the sealing shaft (3). The first slot and the second slot are connected. The scraper (5) mechanism is located on the sealing shaft (3). The sealing shaft (3) slides along the second slot, causing the scraper (5) mechanism to slide.

2. The sliding sealing device for a fireworks loading machine according to claim 1, characterized in that, A sealing plate (21) is provided on the outside of the second slot, and the end face of the sealing plate (21) is in contact with the sealing shaft (3).

3. The sliding sealing device for a fireworks loading machine according to claim 1, characterized in that, The lower side of the long slot (11) is inclined, and the lower part of the first slot is inclined. The inclined surface of the first slot and the inclined surface of the long slot (11) are located on the same plane.

4. The sliding sealing device for a fireworks loading machine according to claim 1, characterized in that, The long slot (11) has bushings (6) on the side plates at both ends, and the sealing shaft (3) is slidably disposed in the bushings (6).

5. The sliding sealing device for a fireworks loading machine according to claim 4, characterized in that, The bushing (6) is provided with a sealing ring (7), the inner diameter of the sealing ring (7) matches the diameter of the sealing shaft (3), and the outer diameter of the sealing ring (7) matches the inner diameter of the bushing (6).

6. The sliding sealing device for a fireworks loading machine according to claim 1, characterized in that, The scraper (5) mechanism includes a flipping shaft (4) and a scraper (5), and the width of the first slot and the second slot is matched with the diameter of the flipping shaft (4).

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