Firecracker packaging and gluing device

Abstract

The utility model discloses a firecracker packaging and gluing device which comprises a support arranged on a conveying frame, a coating head provided with a glue pipe is rotationally arranged on the support, a discharging opening with an end opening facing the surface of a firecracker coiling ring is formed in the coating head, and a pushing block arranged circumferentially is movably arranged in the coating head. And the pushing block is provided with an embedding head which is embedded with the triangular cavity for use, and the pushing block opens the discharge port for gluing in an embedding state. According to the firecracker packaging and gluing device, the discharging opening is opened through the moving pushing block, glue is conveyed to the side wall of the next firecracker through the discharging opening, the position, where a label is attached, of the side wall of a single firecracker is coated with the glue, the operation is repeated, and embedding assembly is conducted again when the next triangular cavity reaches the position of the next embedding head; the lower discharging opening is opened, the side wall of the lower firecracker is coated with a preset amount of glue, the position, with only the firecracker, of the side wall of the firecracker coiling ring is coated with the glue, meanwhile, the glue use amount is guaranteed, and the problems of glue waste and the like are solved.

Description

Technical Field

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

[0002] Firecrackers are products that explode when lit, producing loud noises, flashes, and other effects, primarily for auditory impact. Firecrackers are usually strung together and detonated using the same fuse. Common types include strip-shaped and disc-shaped firecrackers, commonly known as hanging firecrackers and disc firecrackers. Finally, labels are glued to the surface of all types of firecrackers.

[0003] According to the publication (announcement) number: CN221593672U, the publication (announcement) date: 2024-08-23, an automatic adhesive device for firecracker packaging is disclosed.

[0004] In the prior art, including the aforementioned patent, before attaching paper labels to the curved sidewall of a firecracker, glue is usually applied to the surface of either the label or the firecracker before they are attached to each other for adhesion. However, the sidewall of a firecracker is composed of multiple cylindrical firecrackers, so a triangular gap that does not contact the label is inevitably formed between two adjacent firecrackers. This means that during the adhesion process, only the curved surface of the firecracker needs to be attached to the label, and the glue applied to the label surface will inevitably be wasted. Similarly, when applying glue to the surface of the firecracker, as the brush used to apply the glue passes through multiple firecrackers, excess glue will seep into the triangular gap, resulting in waste and increasing the processing cost of the firecracker. Utility Model Content

[0005] The purpose of this invention is to provide a firecracker encapsulation adhesive device to solve the problems mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A firecracker encapsulation adhesive device includes a conveyor frame and a disc firecracker ring with a triangular cavity, and a bracket mounted on the conveyor frame, wherein a coating head for assembling adhesive tubes is rotatably mounted on the bracket.

[0008] The coating head is provided with an outlet facing the surface of the disc ring;

[0009] The coating head is movably provided with a circumferentially arranged push block, and the push block is provided with a fitting head for engaging with the triangular cavity. In the engaged state, the push block opens the outlet for adhesive application.

[0010] Preferably, the coating head has a storage cavity for the sliding of the push block, and the storage cavity has a through hole communicating with the coating head.

[0011] Preferably, the outlet is intermittently connected to the storage cavity by the opening and closing of the push block.

[0012] Preferably, it also includes a limiting cover installed on the bracket, wherein the limiting cover has brush edges symmetrically arranged to cooperate with the adhesive application of the disc gun ring.

[0013] Preferably, a guide post is also fixedly installed on the push block, and the guide post has symmetrically arranged sides that slide against the inner wall of the through hole.

[0014] In the above technical solution, the firecracker encapsulation adhesive device provided by this utility model has the following beneficial effects: the fitting head slides its end into the triangular cavity along the side wall of the firecracker under the action of spring reset. At this time, the moving push block opens the outlet, allowing the outlet to deliver glue to the next firecracker side wall, so that the position of the label on the single firecracker side wall is coated with glue. This cycle continues, and when the next triangular cavity reaches the position of the next fitting head, it is fitted and assembled again, so that the next outlet opens and applies a predetermined amount of glue to the next firecracker side wall. This ensures that only the position of the firecracker on the side wall of the disc firecracker ring is coated with glue, avoiding and reducing seepage into the triangular cavity. This keeps the label stable on the outer ring of the disc firecracker ring, while ensuring the amount of glue used and avoiding problems such as glue waste. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the assembly of the disc spraying conveyor and coating head provided in an embodiment of the present utility model;

[0017] Figure 2 A schematic diagram of the assembly of the disc spraying conveyor and coating head provided in this embodiment of the utility model;

[0018] Figure 3 This is a front cross-sectional view of the coating head and the edge of the disc gun provided in an embodiment of the present invention;

[0019] Figure 4 for Figure 3 Enlarged view of point A;

[0020] Figure 5 A schematic diagram of the push block and its components provided in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Conveyor frame; 11. Support frame; 2. Disc spray ring; 20. Triangular cavity; 3. Coating head; 30. Rubber hose; 31. Storage cavity; 311. Through hole; 32. Push block; 321. Fitting head; 33. Outlet; 34. Guide post; 341. Side; 4. Limiting cover; 41. Brush edge. Detailed Implementation

[0023] 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.

[0024] like Figure 1-5 As shown, a firecracker packaging adhesive device includes a conveyor frame 1 and a disc firecracker ring 2 with a triangular cavity 20, and also includes a bracket 11 disposed on the conveyor frame 1, with a coating head 3 for assembling adhesive tube 30 rotatably disposed on the bracket 11.

[0025] The coating head 3 is provided with an outlet 33 with its port facing the surface of the disc ring 2;

[0026] The coating head 3 is movably provided with a circumferentially arranged push block 32. The push block 32 is provided with a fitting head 321 for fitting with the triangular cavity 20. In the fitting state, the push block 32 opens the outlet 33 for applying adhesive.

[0027] Specifically, the groove of the conveyor frame 1 is equipped with an arc-shaped belt that compresses the firecracker ring 2 so that the whole ring rotates. The purpose is to provide friction to the outer ring of the firecracker ring 2 so that it can rotate and ensure the combination of multiple firecrackers inside the firecracker ring 2.

[0028] Furthermore, the coating head 3 rotates on the support 11, so that the support 11 provides the coating head 3 with stable delivery of glue. The glue tube 30 is specifically a rubber hose that delivers glue in a pressurized state. The material is existing technology and will not be described in detail here. It delivers the glue into the coating head 3 so that the glue can enter the outlet 33.

[0029] Furthermore, a spring is fixedly installed on the push block 32. The spring is in a compressed state by default, and the fitting head 321 abuts against the firecracker side wall surface on the disc firecracker ring 2. When the fitting head 321 moves to the port of the triangular cavity 20, the spring restores its deformation and inserts the fitting head 321 into the triangular cavity 20. The end of the fitting head 321 is rounded so that the fitting head 321 can quickly slide into the triangular cavity 20.

[0030] The disc firecracker ring 2, located in the conveyor frame 1, is rotated so that the firecracker sidewall of the outer ring of the disc firecracker ring 2 abuts against the fitting head 321. Under the restoring deformation of the spring, the pushing block 32 is pushed onto the fitting head 321, causing the end of the fitting head 321 to slide into the triangular cavity 20 along the firecracker sidewall. At this time, the moving pushing block 32 opens the outlet 33, allowing the outlet 33 to deliver glue to the next firecracker sidewall, so that the position of the label on the individual firecracker sidewall is coated with glue. This cycle continues, and when the next triangular cavity 20 reaches the position of the next fitting head 321, the fitting is re-assembled, so that the next outlet 33 opens and applies a predetermined amount of glue to the next firecracker sidewall. This ensures that only the firecracker position on the sidewall of the disc firecracker ring 2 is coated with glue, preventing reduced seepage into the triangular cavity 20, keeping the label stable on the outer ring of the disc firecracker ring 2, and ensuring sufficient glue usage to avoid glue waste.

[0031] As a further embodiment of this utility model, the coating head 3 is provided with a storage cavity 31 for the push block 32 to slide, and the storage cavity 31 is provided with a through hole 311 communicating with the coating head 3.

[0032] Specifically, the storage cavity 31 is arranged circumferentially on the side wall of the coating head 3, and a rubber ring is fixedly fitted on the push block 32 so that the glue in the storage cavity 31 will not leak during the movement of the push block 32.

[0033] Furthermore, the outlet 33 maintains a predetermined angle with the storage cavity 31, and when the storage cavity 31 is vertically downward, the outlet 33 is tilted toward one of the firecracker sidewalls of the triangular cavity 20 so that the outlet 33 delivers glue to the next firecracker sidewall in sequence.

[0034] The adhesive inside the coating head 3 enters the storage cavity 31 through the through hole 311 and is stored there. This allows the adhesive to be pre-processed by the push block 32, enabling the adhesive in multiple storage cavities 31 to circulate and ensuring the coating efficiency of the outer ring of the disc gun ring 2.

[0035] As another embodiment further provided in this utility model, the outlet 33 is intermittently connected to the storage cavity 31 by the opening and closing of the push block 32.

[0036] Specifically, the outlet 33 has a stepped opening with increased volume so that the glue has a larger mating surface, which improves the glue coating effect on the side wall of the firecracker.

[0037] The adhesive in the storage cavity 31 is squeezed out by the push block 32, so that the outlet 33 is opened by the push block 32 to deliver the adhesive. The enlarged port of the outlet 33 makes it easier to apply the adhesive to the side wall of the firecracker, avoiding the problem of adhesive jamming. Under the rotation of the coating head 3, a predetermined amount of adhesive is applied to the side wall of each firecracker.

[0038] As another embodiment of this utility model, it also includes a limiting cover 4 installed on the bracket 11, and the limiting cover 4 has brush edges 41 symmetrically arranged on it to cooperate with the adhesive coating of the disc ring 2.

[0039] Specifically, the brush edge 41 on the limiting cover 4 is shaped like an "Ohm" symbol, and a soft brush is fixedly installed on the inner side wall of the brush edge 41 so that the bristles can wipe the dust on the side wall of the firecracker and smooth it after the firecracker is coated with glue, increasing the cleanliness and coating area of ​​the glue coating surface, so that the two brush edges 41 can coat and compact the outer ring of the firecracker ring 2.

[0040] By abutting the rounded corner between the brush edge 41 and the limiting cover 4 against the fitting head 321, the multiple fitting heads 321 rotated down and slide into the limiting cover 4 in sequence, causing the push block 32 to retract into the storage cavity 31, and using the side wall of the push block 32 to block the outlet 33, preventing glue leakage from the outlet 33 that enters the limiting cover 4. At the same time, the rotating coating head 3 causes the multiple fitting heads 321 to continuously couple / decouple the triangular cavity 20, so that the coating head 3 and the disc ring 2 form a gear-like meshing effect, which can not only meet the stability during the docking process, but also make the glue coating efficiency higher and less prone to jamming.

[0041] As another embodiment of this utility model, a guide post 34 is also fixedly installed on the push block 32, and the guide post 34 has symmetrically arranged side edges 341 that slide against the inner wall of the through hole 311.

[0042] Specifically, the side 341 has a curved arc, which makes the side 341 form a blade-like shape similar to an impeller, so that the side 341 has the ability to stir the glue when moving axially.

[0043] The two sides 341 on the guide post 34 are used to increase the stability of the push block 32 during movement. At the same time, the sides 341 are used to agitate the adhesive in the coating head 3, through hole 311 and storage cavity 31 to avoid problems such as adhesive coagulation, ensure the viscosity of the adhesive, and make it more stable when the label is attached to the surface of the disc ring 2.

[0044] Working principle: The disc firecracker ring 2, located in the conveyor frame 1, is driven to rotate, causing the outer wall of the disc firecracker ring 2 to abut against the fitting head 321. Under the restoring deformation of the spring, the pushing block 32 experiences a pushing force on the fitting head 321, causing the end of the fitting head 321 to slide along the firecracker sidewall into the triangular cavity 20. At this time, the moving pushing block 32 opens the outlet 33, allowing the outlet 33 to deliver glue to the next firecracker sidewall, so that the position of the label on the individual firecracker sidewall is coated with glue. This cycle continues, and the glue is applied to the next triangular cavity 20. When the next fitting head 321 is reached, the assembly is re-fitted, opening the next outlet 33 and applying a predetermined amount of glue to the side wall of the next firecracker. This ensures that only the firecracker's position on the side wall of the disc firecracker ring 2 is covered with glue, preventing and reducing seepage into the triangular cavity 20. This keeps the label stable on the outer ring of the disc firecracker ring 2 while ensuring sufficient glue usage. A soft brush is fixedly installed on the inner side wall of the brush edge 41 so that the bristles can wipe the dust on the side wall of the firecracker and smooth it after the glue is applied, increasing the cleanliness and coverage of the glue coating surface.

[0045] The above 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 firecracker packaging and gluing device, comprising a conveying frame (1) and a disc-shaped cracker ring (2) provided with a triangular cavity (20), characterized in that, It also includes a support (11) arranged on the conveying frame (1), and a coating head (3) with a rubber pipe (30) arranged rotatably on the support (11); The coating head (3) is provided with a discharge port (33) with a port surface facing the surface of the disc cannon ring (2); The coating head (3) is movably provided with a circumferentially arranged push block (32), and the push block (32) is provided with an embedding head (321) used in combination with the triangular cavity (20), and in the embedded state, the push block (32) opens the discharge port (33) to coat rubber.

2. The firecracker packing adhesive device according to claim 1, wherein, The coating head (3) is provided with a storage cavity (31) for the sliding of the push block (32), and the storage cavity (31) is provided with a through hole (311) communicated with the coating head (3).

3. The device according to claim 2, wherein the device is characterized by: The discharge port (33) is intermittently communicated with the storage cavity (31) by the opening and closing of the push block (32).

4. The firecracker packing adhesive device according to claim 3, wherein, It also includes a limiting cover (4) mounted on the support (11), and the limiting cover (4) is symmetrically provided with a brush edge (41) matched with the disc cannon ring (2) for rubber coating.

5. The device according to claim 3, wherein the device is characterized by: The push block (32) is also fixedly provided with a guide column (34), and the guide column (34) is symmetrically provided with a side edge (341) slidingly abutting the inner wall of the through hole (311).

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