Hemming and bottom sealing device for firework outer cylinder
By designing a fireworks outer barrel crimping bottom cover device including a crimping mechanism and a material withdrawal mechanism, the traditional device has been solved in terms of crimping effect and material withdrawal convenience, and better crimping effect and higher working efficiency are achieved.
Patent Information
- Application Number
- CN202421442128.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The traditional fireworks coiling device is not convenient to roll the paper barrel from multiple angles at the same time. The coiling effect is not good, and it is not convenient to remove the material of the rolled paper barrel, which affects the working efficiency.
A curled back cover device for the outer cylinder of fireworks is designed, including a base frame, rubber column, limit frame, curled mechanism and material withdrawal mechanism. The edge rolling mechanism can facilitate rolling the paper barrel from multiple angles simultaneously through the cooperation of the electric slider, the extrusion ring and the contact frame; the material withdrawal mechanism can facilitate rolling the paper barrel completed by the rolling through the cooperation of the locking frame, the horizontal spring and the power spring.
The multi-angle curling of the paper barrel is achieved, which improves the curling effect; at the same time, it is convenient to remove the material of the curling paper barrel, which improves the working efficiency.
Smart Images
Figure CN222652041U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fireworks production, in particular to a curling bottom sealing device for a fireworks outer tube. Background Art
[0002] Fireworks are a traditional Chinese entertainment product, often used in festive occasions, and have a strong atmosphere-building effect. Fireworks are mostly composed of a gunpowder part and a packaging part. The gunpowder part is composed of a variety of different chemical raw materials that can produce flame color reactions, and the packaging part is mostly a paper firework tube.
[0003] Firework tubes are usually made of paper with good hardness and are rolled into a tube-shaped structure. When produced, both ends of the firework tubes are open. The firework tubes need to be curled. One end of the firework tube is squeezed and inserted into the firework tube, and then sealed with clay or other materials so that the firework tube can hold gunpowder. Traditional curling devices are not convenient for curling the paper tube from multiple angles at the same time, and the curling effect is not good. It is also inconvenient to return the curled paper tube, and it is not convenient for the staff to take away the curled paper tube. Utility Model Content
[0004] In order to overcome the shortcomings of traditional devices that it is inconvenient to curl the paper tube from multiple angles at the same time, the curling effect is not good, it is inconvenient to return the paper tube after the curling is completed, and it is inconvenient for staff to take away the paper tube after the curling is completed, the utility model provides a curling bottom sealing device for the outer tube of a firework that can conveniently curl the paper tube from multiple angles at the same time, has a better curling effect, and is convenient to return the paper tube after the curling is completed, so that the staff can take away the paper tube after the curling is completed.
[0005] The technical solution is: a curling and bottom sealing device for a firework outer tube, comprising a base frame, a rubber column fixedly connected to the upper part of the base frame, a limiting frame slidably connected to the upper part of the base frame, the limiting frame and the rubber column are slidably connected, a paper tube is inserted on the rubber column, the top of the paper tube is in contact with the bottom of the limiting frame, a curling mechanism is provided on the base frame, a material return mechanism is provided on the base frame, the curling mechanism can conveniently curl the paper tube from multiple angles at the same time, and the curling effect is better, the material return mechanism can conveniently return the paper tube after the curling is completed, so that the staff can take away the paper tube after the curling is completed.
[0006] As an improvement of the above-mentioned scheme, the curling mechanism includes an electric slider, which is slidably connected to the base frame, an extrusion ring is fixedly connected to one side of the electric slider, an inclined surface is provided on the extrusion ring, a mounting frame is fixedly connected to the bottom of the extrusion ring, a pushing frame is fixedly connected to the mounting frame, and the pushing frame is located below the extrusion ring.
[0007] As an improvement of the above solution, the curling mechanism also includes a fixed frame, the upper part of the base frame is fixedly connected to the fixed frame, the lower part of the fixed frame is slidably connected to four contact frames, the four contact frames are arranged at even intervals, the contact frames will contact the inclined surface on the extrusion ring, and a reset spring is provided between each of the contact frames and the fixed frame.
[0008] As an improvement of the above-mentioned scheme, the material return mechanism includes a locking frame, the locking frame is slidably connected to the upper part of the base frame, the locking frame is provided with an inclined surface, the locking frame clamps the limit frame, the limit frame and the inclined surface on the locking frame will contact, a horizontal spring is provided between the locking frame and the base frame, and a force storage spring is provided between the limit frame and the base frame.
[0009] As an improvement of the above scheme, it also includes a double-groove frame, the upper part of the base frame is slidably connected to the double-groove frame, the double-groove frame has two contact grooves, the two contact grooves on the double-groove frame are symmetrically arranged, the upper part of the base frame is slidably connected to two clamping frames, the two clamping frames are symmetrically arranged, the clamping frames will contact the outer side wall of the paper tube, the top of each clamping frame is fixedly connected to a contact shaft, and the upper end of the contact shaft is located in the contact groove on the double-groove frame.
[0010] Beneficial effects: 1. The contact frame is contacted by the extrusion ring, and the inclined surface on the extrusion ring will squeeze the contact frame toward the direction close to the paper tube. The movement of the contact frame toward the direction close to the paper tube will squeeze the lower edge of the paper tube, causing the lower edge of the paper tube to shrink. The edge pushing frame continues to move upward to push the shrinking lower edge of the paper tube upward into the paper tube, which can facilitate the curling of the paper tube from multiple angles at the same time, and the curling effect is better.
[0011] 2. The staff pulls the locking frame horizontally, and the locking frame is disengaged from the limit frame. The locking frame no longer clamps the limit frame, and the force storage spring rebounds and drives the limit frame to move downward. The limit frame moves downward and pushes the paper tube to disengage from the rubber column, which makes it easy to return the paper tube with the curled edge, and the staff can take away the paper tube with the curled edge. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0013] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.
[0014] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model.
[0015] Figure 4 This is a schematic diagram of a partially cutaway three-dimensional structure of the first type of the utility model.
[0016] Figure 5 It is a schematic diagram of a second partially cutaway three-dimensional structure of the utility model.
[0017] The numbers in the figure are as follows: 1. Base frame, 2. Rubber column, 3. Limit frame, 31. Paper tube, 4. Electric slider, 5. Extrusion ring, 6. Mounting frame, 7. Pushing frame, 8. Fixed frame, 9. Contact frame, 10. Reset spring, 11. Locking frame, 12. Horizontal spring, 13. Storage spring, 14. Double-slot frame, 15. Clamping frame, 16. Contact shaft. DETAILED DESCRIPTION
[0018] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.
[0019] Embodiment 1: A curling and bottom sealing device for a firework outer tube, such as Figure 1-Figure 5 As shown, it includes a base frame 1, a rubber column 2 is fixedly connected to the upper part of the base frame 1, the upper part of the base frame 1 is slidably connected to a limiting frame 3, the limiting frame 3 is slidably connected to the rubber column 2, a paper tube 31 is inserted on the rubber column 2, the top of the paper tube 31 is in contact with the bottom of the limiting frame 3, a curling mechanism is provided on the base frame 1, and a material return mechanism is provided on the base frame 1, the curling mechanism can conveniently curl the paper tube 31 from multiple angles at the same time, and the curling effect is better, the material return mechanism can conveniently return the paper tube 31 after the curling is completed, so that the staff can take away the paper tube 31 after the curling is completed.
[0020] The curling mechanism includes an electric slider 4, which is slidably connected to the base frame 1, and a squeezing ring 5 is fixedly connected to one side of the electric slider 4. The electric slider 4 is used to drive the squeezing ring 5 to move up and down. The squeezing ring 5 is provided with an inclined surface, and a mounting frame 6 is fixedly connected to the bottom of the squeezing ring 5. A pushing frame 7 is fixedly connected to the mounting frame 6, and the pushing frame 7 is located below the squeezing ring 5. The squeezing ring 5 drives the mounting frame 6 to move up and down, thereby driving the pushing frame 7 to move up and down.
[0021] The curling mechanism also includes a fixed frame 8, the upper part of the base frame 1 is fixedly connected to the fixed frame 8, and the lower part of the fixed frame 8 is slidably connected to four contact frames 9, the four contact frames 9 are evenly spaced, the contact frames 9 will contact the inclined surface on the extrusion ring 5, and a reset spring 10 is provided between each of the contact frames 9 and the fixed frame 8. The electric slider 4 drives the extrusion ring 5 to move upward, thereby driving the contact frames 9 to extrude the paper tube 31.
[0022] The material return mechanism includes a locking frame 11, and the locking frame 11 is slidably connected to the upper part of the base frame 1. The locking frame 11 is provided with an inclined surface. The locking frame 11 clamps the limiting frame 3, and the limiting frame 3 contacts the inclined surface on the locking frame 11. A horizontal spring 12 is provided between the locking frame 11 and the base frame 1, and a force storage spring 13 is provided between the limiting frame 3 and the base frame 1. The force storage spring 13 drives the limiting frame 3 to move downward, thereby driving the paper tube 31 to disengage from the rubber column 2.
[0023] Initially, the locking frame 11 clamps the limiting frame 3, the storage spring 13 is compressed, and the staff inserts the paper tube 31 upward from the bottom of the fixing frame 8 onto the rubber column 2, so that the top of the paper tube 31 contacts the limiting frame 3, and the rubber column 2 limits the paper tube 31 through friction. After the paper tube 31 is inserted, the staff starts the electric slider 4 to move upward, and the upward movement of the electric slider 4 drives the squeezing ring 5 to move upward, and the upward movement of the squeezing ring 5 drives the mounting frame 6 to move upward, and the upward movement of the mounting frame 6 drives the edge pushing frame 7 to move upward, and the squeezing ring 5 moves upward and contacts the contact frame 9, and the inclined surface on the squeezing ring 5 will move the contact frame 9 toward the paper tube 31. The return spring 10 is compressed, and the contact frame 9 moves toward the direction close to the paper tube 31 to squeeze the lower edge of the paper tube 31, so that the lower edge of the paper tube 31 shrinks, and the edge pushing frame 7 continues to move upward to push the shrinking lower edge of the paper tube 31 upward into the paper tube 31. Through the above operation, the paper tube 31 can be curled from multiple angles at the same time, and the curling effect is better. After the curling is completed, the staff adjusts the electric slider 4 to move downward and reset, and the electric slider 4 moves downward and resets to drive the squeezing ring 5 to move downward and reset, and the squeezing ring 5 moves downward and resets to drive the mounting frame 6 to move downward and reset, and the mounting frame 6 moves downward and resets with The push edge frame 7 moves downward to reset, the extrusion ring 5 moves downward to disengage from the contact frame 9, the reset spring 10 will rebound and drive the contact frame 9 to move in the direction away from the paper tube 31 to reset, and after the electric slider 4 is reset, the staff will pull the locking frame 11 horizontally, the horizontal spring 12 is stretched, the locking frame 11 moves horizontally to disengage from the limit frame 3, the locking frame 11 no longer clamps the limit frame 3, the storage spring 13 will rebound and drive the limit frame 3 to move downward, and the limit frame 3 moves downward to push the paper tube 31 out of contact with the rubber column 2. Through the above operation, the paper tube 31 with the curled edge completed can be easily returned, which is convenient for the staff to take After the paper tube 31 with the curling completed is removed and the paper tube 31 is unloaded, the staff releases the locking frame 11, the horizontal spring 12 will rebound and drive the locking frame 11 to move in the opposite direction and reset, and then the staff pushes the limit frame 3 upward, the storage spring 13 is compressed, the limit frame 3 moves upward and contacts the inclined surface on the locking frame 11, and pushes the locking frame 11 horizontally, the horizontal spring 12 is stretched, the limit frame 3 continues to move upward and disengages from the inclined surface on the locking frame 11, the horizontal spring 12 will rebound and drive the locking frame 11 to move in the opposite direction and reset, the locking frame 11 moves in the opposite direction and resets to contact the limit frame 3, and the locking frame 11 re-jams the limit frame 3.
[0024] Embodiment 2: Based on embodiment 1, Figure 1 and Figure 3-Figure 5As shown, it also includes a double-groove frame 14, the upper part of the base frame 1 is slidably connected to the double-groove frame 14, the double-groove frame 14 has two contact grooves, the two contact grooves on the double-groove frame 14 are symmetrically arranged, the upper part of the base frame 1 is slidably connected to two clamping frames 15, the two clamping frames 15 are symmetrically arranged, the clamping frames 15 will contact the outer side wall of the paper tube 31, the clamping frames 15 are used to clamp the paper tube 31, and the top of each of the clamping frames 15 is fixedly connected to a contact shaft 16, the upper end of the contact shaft 16 is located in the contact groove on the double-groove frame 14, the double-groove frame 14 drives the two contact shafts 16 to move in a direction approaching each other, thereby driving the two clamping frames 15 to move in a direction approaching each other.
[0025] After the paper tube 31 is placed, the staff pushes the double-groove frame 14, and the contact grooves on the double-groove frame 14 will squeeze the two contact shafts 16 in the direction of approaching each other, and the two contact shafts 16 move in the direction of approaching each other, driving the two clamping frames 15 to move in the direction of approaching each other, and the two clamping frames 15 move in the direction of approaching each other, and the outer wall of the paper tube 31 is contacted and clamped to prevent the upper part of the paper tube 31 from being deformed during the curling process. After the curling is completed, the staff pushes the double-groove frame 14 in the opposite direction, and the contact grooves on the double-groove frame 14 will squeeze the two contact shafts 16 in the direction of moving away from each other, and the two contact shafts 16 move in the direction of moving away from each other, driving the two clamping frames 15 to move in the direction of moving away from each other, and the two clamping frames 15 move in the direction of moving away from each other and disengage from the outer wall of the paper tube 31, so as to facilitate the paper tube 31 to be withdrawn.
[0026] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.
Claims
1. A curling bottom sealing device for a fireworks outer tube, characterized in that: The invention comprises a base frame (1), a rubber column (2) is fixedly connected to the upper part of the base frame (1), a limiting frame (3) is slidably connected to the upper part of the base frame (1), the limiting frame (3) is slidably connected to the rubber column (2), a paper tube (31) is inserted on the rubber column (2), the top of the paper tube (31) contacts the bottom of the limiting frame (3), a curling mechanism is provided on the base frame (1), a material return mechanism is provided on the base frame (1), the curling mechanism can conveniently curl the paper tube (31) from multiple angles at the same time, and the curling effect is better, the material return mechanism can conveniently return the paper tube (31) after curling, so that the staff can take away the paper tube (31) after curling.
2. A curling bottom sealing device for a firework outer tube as claimed in claim 1, characterized in that: The curling mechanism comprises an electric slider (4), the electric slider (4) is slidably connected to the base frame (1), an extrusion ring (5) is fixedly connected to one side of the electric slider (4), an inclined surface is provided on the extrusion ring (5), a mounting frame (6) is fixedly connected to the bottom of the extrusion ring (5), an edge pushing frame (7) is fixedly connected to the mounting frame (6), and the edge pushing frame (7) is located below the extrusion ring (5).
3. A curling bottom sealing device for a firework outer tube as claimed in claim 2, characterized in that: The curling mechanism also includes a fixing frame (8), the fixing frame (8) is fixedly connected to the upper part of the base frame (1), and the lower part of the fixing frame (8) is slidably connected to four contact frames (9), the four contact frames (9) are arranged at even intervals, the contact frames (9) will contact the inclined surface on the extrusion ring (5), and a return spring (10) is arranged between each of the contact frames (9) and the fixing frame (8).
4. A curling bottom sealing device for a firework outer tube as claimed in claim 1, characterized in that: The material return mechanism comprises a locking frame (11), the upper part of the base frame (1) is slidably connected to the locking frame (11), an inclined surface is provided on the locking frame (11), the locking frame (11) clamps the limiting frame (3), the limiting frame (3) and the inclined surface on the locking frame (11) are in contact, a horizontal spring (12) is provided between the locking frame (11) and the base frame (1), and a force storage spring (13) is provided between the limiting frame (3) and the base frame (1).
5. The curling bottom sealing device for a firework outer tube as claimed in claim 1, characterized in that: The invention also comprises a double-groove frame (14), the upper part of the base frame (1) is slidably connected to the double-groove frame (14), the double-groove frame (14) is provided with two contact grooves, the two contact grooves on the double-groove frame (14) are symmetrically arranged, the upper part of the base frame (1) is slidably connected to two clamping frames (15), the two clamping frames (15) are symmetrically arranged, the clamping frames (15) are in contact with the outer side wall of the paper tube (31), the top of each clamping frame (15) is fixedly connected to a contact shaft (16), the upper end of the contact shaft (16) is located in the contact groove on the double-groove frame (14).