Combined firework signage wrapping frame body

Abstract

The utility model discloses a combined firework signage wrapping frame, which is characterized in that at least three rotating rollers are spliced and combined into a closed-loop frame, and the end parts of two adjacent rotating rollers are spliced, so that the splicing part of the inner ring of the frame is in a round corner shape; and one end of only one of the splicing parts of the two adjacent rotating rollers is provided with a circular truncated cone-shaped end part of which the diameter is gradually increased. The number of the circular-truncated-cone-shaped end parts of the whole frame body is reduced by 50%; meanwhile, the splicing of two adjacent rotating rollers is the splicing of one circular-truncated-cone-shaped end part and one cylindrical end part; therefore, the processing and manufacturing difficulty of the frame body can be effectively reduced; by the adoption of the technical scheme, the fillet wrapping effect of the combined fireworks can still be effectively improved; meanwhile, the frame body structure can be a closed-loop frame body structure formed by splicing three or more rotating rollers, and can adapt to the bottom illumination coating processing of the combined fireworks in different shapes, such as the combined fireworks with the cross sections in the shapes of rounded triangles, pentagons, hexagons, octagons or other polygons.

Description

Technical Field

[0001] The utility model relates to a device for covering a top sparkler and a bottom sparkler of a firework onto the firework. Background Art

[0002] After the combination fireworks products are formed, they need to be packaged in a cover, that is, plastic, paper, etc. are pasted on the surface of the product for closed packaging. This packaging material is generally called paper in the industry. The top paper pasted on the top of the product is the top paper, the bottom paper pasted on the bottom of the product is the bottom paper, and the side paper pasted on the side of the product is the surrounding paper. During processing, the bottom paper and the top paper are packaged first, and then the surrounding paper is pasted and packaged around the entire side of the product. The surrounding paper covers the surrounding area of ​​the bottom paper and the top paper on the side wall of the product.

[0003] Specifically, the pasting of bottom and top posters generally includes two basic steps: gluing and wrapping. First, glue is applied to the four side walls of the product, and then the poster paper is wrapped on the top / bottom of the fireworks. The parts of the bottom and top posters that are larger than the periphery of the product are pasted on the side walls of the product.

[0004] In the prior art, the Chinese utility model patent document with the authorization announcement number CN 218368566 U discloses "a frame mechanism for covering the top and bottom of combined fireworks". It includes a frame composed of four rollers, and the two ends of the rollers have truncated cone-shaped ends with gradually increasing diameters. The truncated cone-shaped ends of two adjacent rollers are spliced ​​so that the four corners of the inner circle of the frame are rounded. With the above technical solution, when the frame presses the paper to make it close to the combined fireworks, the overall angular velocity of the roller body is the same when it rotates, but the linear velocity of the truncated cone-shaped end increases with the increase of the diameter; the rounded corners of the inner circle of the frame formed by the truncated cone-shaped end can pull the paper to make it appear as fine wrinkles and stick to the rounded corners of the combined fireworks during rotation, avoiding large wrinkles and protrusions, effectively improving the covering effect of the rounded corners of the combined fireworks, and improving the packaging quality. The utility model refers to the above utility model patent document in its entirety.

[0005] The disadvantage is that, although it can effectively improve the packaging quality, both ends of the four rollers need to be processed or installed with truncated cone ends, and two adjacent rollers need to be spliced ​​with two truncated cone ends, which is difficult to process and manufacture, and increases the production cost; at the same time, the existing frame structure is only suitable for the bottom cover of the combination fireworks with a rounded quadrilateral cross section, and with the update and iteration of the combination fireworks products, its shape is more diverse, and its cross-sectional shape can also be other rounded polygons, such as triangles, pentagons, hexagons, heptagons, octagons or other rounded polygons with more sides. The existing frame structure composed of four rollers cannot be used for the bottom cover of these combination fireworks. Utility Model Content

[0006] In order to solve the above-mentioned drawbacks, the technical problem to be solved by the utility model is to provide a frame for covering the top and bottom fireworks of the combined fireworks, which effectively improves the rounded corner covering effect of the combined fireworks and effectively reduces the difficulty of processing and manufacturing the frame, and has a wider range of applications. In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is a combined fireworks paper covering frame, characterized in that no less than three rollers are spliced ​​and combined into a closed-loop frame, the ends of two adjacent rollers are spliced ​​so that the splicing part of the inner circle of the frame is rounded; in the splicing part of two adjacent rollers, only one end of one roller has a truncated cone-shaped end with a gradually increasing diameter.

[0007] The beneficial effect of the utility model lies in that, in the joint of two adjacent rollers, only one end of one roller has a truncated cone-shaped end portion with a gradually increasing diameter, and the number of truncated cone-shaped ends of the entire frame is reduced by 50%; at the same time, the joint of two adjacent rollers is the joint of a truncated cone-shaped end portion and a cylindrical end portion; therefore, the difficulty of processing and manufacturing the frame can be effectively reduced; and the adoption of the above technical scheme can still effectively improve the rounded corner covering effect of the combined fireworks; at the same time, the frame structure can be a closed-loop frame structure composed of three or more rollers, which can adapt to the top and bottom covering processing of combined fireworks of different shapes, such as combined fireworks with cross sections in the shape of rounded triangles, pentagons, hexagons, octagons or other polygons.

[0008] In one embodiment, the A end of each roller has a truncated cone-shaped end with a gradually increasing diameter, and the B end is a cylindrical end; the A end of each roller is spliced ​​with the B end of another roller so that the splicing part of the inner circle of the frame is rounded. The purpose of the invention can be effectively achieved.

[0009] In one embodiment, the frame is composed of a plurality of first rollers and second rollers, the two ends of the first rollers have truncated cone-shaped ends with gradually increasing diameters, and the two ends of the second rollers are cylindrical ends; the two ends of the first rollers are respectively spliced ​​with the two ends of the two second rollers so that the inner circle splicing part of the frame is rounded. It is suitable for combined fireworks with polygonal cross-sections such as rounded quadrilaterals, hexagons, octagons, etc. with an even number of sides. It can effectively achieve the purpose of the invention.

[0010] In one embodiment, the frame is composed of a plurality of first rollers, a second roller, and a third roller; the two ends of the first roller have truncated cone-shaped ends with gradually increasing diameters, and the two ends of the second roller are cylindrical ends; the M end of the third roller has a truncated cone-shaped end with gradually increasing diameters, and the N end is a cylindrical end; the M end of the third roller is spliced ​​with the end of the second roller, the N end of the third roller is spliced ​​with the end of the first roller, and the end of the first roller is also spliced ​​with the end of the second roller, so that the inner circle splicing part of the frame is rounded. It is suitable for combined fireworks with a cross section of a polygon with an odd number of sides such as a rounded triangle, a pentagon, and a heptagon. It can effectively achieve the purpose of the invention.

[0011] In one embodiment, the joint of two adjacent rollers is provided with a connector, and the shafts of the two adjacent rollers are mounted on the connector. Further, the connector has two mutually perpendicular mounting surfaces, and the shafts of the two adjacent rollers are mounted on the mounting surfaces in a rotatable manner. The installation is convenient.

[0012] In one embodiment, the central axes of two adjacent rollers are perpendicular to each other. The operation is reliable.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time.

[0014] In the description of this specification, the description of reference terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items. When an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a central element at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the frame of Example 1;

[0016] Figure 2 It is a structural schematic diagram of the frame of Example 2;

[0017] Figure 3 This is a schematic diagram of the principle structure of the frame of Example 3;

[0018] Figure 4 This is a schematic diagram of the principle structure of the frame of Example 4;

[0019] Figure 5 This is a schematic diagram of the principle structure of the frame of Example 5;

[0020] Figure 6 This is a schematic diagram of the principle structure of the frame of Example 6;

[0021] Figure 7This is a schematic diagram of the principle structure of the frame of Example 7;

[0022] Figure 8 Schematic diagram of the principle structure of the frame of Example 8. DETAILED DESCRIPTION

[0023] Example 1: See attached Figure 1 , reflecting a specific structure of the utility model. The combined firework paper covering frame includes a frame composed of four rollers, the ends of two adjacent rollers 101 are spliced ​​so that the four corners of the inner circle of the frame are rounded; in the spliced ​​portion of two adjacent rollers 101, only one end of one roller 101 has a truncated cone-shaped end with a gradually increasing diameter.

[0024] In the example, the A ends 102 of the four rollers 101 have truncated cone-shaped ends with gradually increasing diameters, and the B ends 106 are cylindrical ends; the A end 102 of each roller is spliced ​​with the B end 106 of another roller so that the four corner splicing parts of the inner circle of the frame are rounded.

[0025] It can be seen from the above that, compared with the technical solution of patent document CN 218368566 U which requires eight truncated cone-shaped ends, the entire frame only needs to process or install four truncated cone-shaped ends, reducing the number of truncated cone-shaped ends by 50%.

[0026] At the same time, the splicing of two adjacent rollers 101 is the splicing of a truncated cone end (A end 102) and a cylindrical end (B end 106); it is no longer the splicing of two truncated cone ends, so the difficulty of processing and manufacturing the frame can be effectively reduced.

[0027] In the example, the joint of two adjacent rollers 101 is provided with a connector 105, and the connector 105 has two mutually perpendicular mounting surfaces, namely, a first mounting surface 1051 and a second mounting surface 1052. The rotating shafts of the two adjacent rollers 101 are respectively named as a first rotating shaft 104 and a second rotating shaft 103. In the figure, the first rotating shaft 104 is rotatably mounted on the first mounting surface 1051 (such as through a bearing), and the second rotating shaft 103 is rotatably mounted on the second mounting surface 1052. The installation is convenient.

[0028] In the utility model, the four corners of the inner circle of the frame are still rounded by splicing a truncated cone end (A end 102) and a cylindrical end (B end 106). When the roller rotates, the overall angular velocity is the same, but the linear velocity of the truncated cone end increases with the increase of the diameter. However, it has been verified by experiments that the inner circle fillet can still involve the corresponding part of the top stroke to be distributed more evenly during rotation, so that it forms a small wrinkle combination and sticks on the fillet of the combined fireworks, which can also avoid the generation of large wrinkles or bulges. Therefore, the utility model can effectively improve the covering effect of the fillet of the combined fireworks.

[0029] Example 2: See attached Figure 2 , reflecting another specific structure of the utility model. The difference from Example 1 is that in this example, the two oppositely disposed first rollers 201 have two ends with a truncated cone-shaped end portion 202 with a gradually increasing diameter, and the two oppositely disposed second rollers 207 have two ends with a cylindrical end portion 206; the two ends of the two first rollers 201 and the two ends of the two second rollers 207 are spliced ​​respectively so that the four corners of the frame inner circle are rounded. The purpose of the invention can also be effectively achieved.

[0030] In the example, the first rotating shaft 204 of the adjacent first rotating roller 201 and the second rotating shaft 203 of the second rotating roller 207 are rotatably mounted on the connecting member 205. The central axes of the first rotating shaft 204 and the second rotating shaft 203 are perpendicular to each other, so that the rotation does not interfere with each other and the working reliability is improved.

[0031] Example 3-5: See attached Figure 3-5 , reflecting another specific structure of the utility model. The difference from Example 1 is that in the example, the cross section of the combined fireworks can be Figure 3 The rounded triangle shown, Figure 4 The rounded pentagon shown, Figure 5 In the rounded hexagonal shape shown in the examples, the A end of each roller 301, 401, 501 has a truncated cone-shaped end with a gradually increasing diameter, and the B end is a cylindrical end; the A end of each roller is spliced ​​with the B end of another roller so that the splicing part of the inner circle of the frame is rounded. The purpose of the invention can be effectively achieved.

[0032] Example 6: See attached Figure 6 , reflecting another specific structure of the utility model. The difference from Example 1 is that in the example, the cross section of the combined fireworks is a rounded triangle, and the frame is composed of a first roller 601, a second roller 602, and a third roller 603; the two ends of the first roller 601 have truncated cone-shaped ends with gradually increasing diameters, and the two ends of the second roller 602 are cylindrical ends; the M end of the third roller 603 has a truncated cone-shaped end with gradually increasing diameters, and the N end is a cylindrical end; the M end of the third roller 603 is spliced ​​with the end of the second roller 602, the N end of the third roller 603 is spliced ​​with the end of the first roller 601, and the end of the first roller 601 is also spliced ​​with the end of the second roller 602, so that the inner triangular splicing part of the frame is rounded.

[0033] Example 7: See attached Figure 7, reflecting another specific structure of the utility model. The difference from Example 1 is that in the example, the cross section of the combined fireworks is a rounded pentagon, and the frame is composed of two first rollers 701, two second rollers 702, and one third roller 703; the two ends of the first roller 701 have truncated cone-shaped ends with gradually increasing diameters, and the two ends of the second roller 702 are cylindrical ends; the M end of the third roller 703 has a truncated cone-shaped end with gradually increasing diameters, and the N end is a cylindrical end; the M end of the third roller 703 is spliced ​​with the end of the second roller 702, the N end of the third roller 703 is spliced ​​with the end of the first roller 701, and the end of the first roller 701 is also spliced ​​with the end of the second roller 702, so that the pentagonal splicing part of the inner circle of the frame is rounded.

[0034] Example 8: See attached Figure 8 , reflecting another specific structure of the utility model. The difference from Example 1 is that in the example, the cross section of the combined fireworks is a rounded hexagon, the frame is composed of three first rollers 801 and three second rollers 802, the two ends of the first roller 801 have truncated cone-shaped ends with gradually increasing diameters, and the two ends of the second roller 802 are cylindrical ends; the two ends of the first roller 801 and the two ends of the two second rollers 802 are spliced ​​respectively so that the hexagonal splicing part of the inner circle of the frame is rounded.

[0035] The embodiments of the utility model disclosed above are only used to help illustrate the utility model. The embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and describes these embodiments in detail in conjunction with the accompanying drawings in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can understand and use the utility model well. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is only limited by the claims and their full scope and equivalents, and is not limited by the specific embodiments disclosed.

Claims

1. A combined fireworks paper-wrapped frame, characterized in that: No less than three rollers are spliced ​​to form a closed-loop frame, and the ends of two adjacent rollers are spliced ​​so that the spliced ​​portion of the inner circle of the frame is rounded; in the spliced ​​portion of two adjacent rollers, only one end of one roller has a truncated cone-shaped end with a gradually increasing diameter.

2. The combined firework paper covering frame according to claim 1, characterized in that: The A end of each roller has a truncated cone-shaped end with a gradually increasing diameter, and the B end is a cylindrical end; the A end of each roller is spliced ​​with the B end of another roller so that the splicing part of the inner circle of the frame is rounded.

3. The combined firework paper covering frame according to claim 1, characterized in that: The frame is composed of a plurality of first rollers and second rollers, the two ends of the first rollers have truncated cone-shaped ends with gradually increasing diameters, and the two ends of the second rollers are cylindrical ends; the two ends of the first rollers are respectively spliced ​​with the two ends of the two second rollers so that the inner ring splicing part of the frame is rounded.

4. The combined firework paper covering frame according to claim 1, characterized in that: The frame is composed of a plurality of first rollers, a second roller and a third roller; both ends of the first roller have truncated cone-shaped ends with gradually increasing diameters, and both ends of the second roller are cylindrical ends; the M end of the third roller has a truncated cone-shaped end with gradually increasing diameters, and the N end is a cylindrical end; the M end of the third roller is spliced ​​with the end of the second roller, the N end of the third roller is spliced ​​with the end of the first roller, and the end of the first roller is also spliced ​​with the end of the second roller, so that the inner ring splicing part of the frame is rounded.

5. The combined firework paper covering frame according to claim 1, characterized in that: A connecting piece is provided at the joint portion of two adjacent rotating rollers, and the rotating shafts of the two adjacent rotating rollers are installed on the connecting piece.

6. The combined firework paper covering frame according to claim 5, characterized in that: The connecting member has two mutually perpendicular mounting surfaces, and the rotating shafts of two adjacent rotating rollers are rotatably mounted on the mounting surfaces.

7. The combined firework paper covering frame according to claim 1, characterized in that: The central axes of two adjacent rollers are perpendicular to each other.

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