Angle-adjustable nozzle assembly of fuse machine

Abstract

The utility model discloses an angle-adjustable nozzle assembly of a fuse machine, which comprises a nozzle threaded pipe and an operating nut, the operating nut is fixedly mounted at the upper end of the nozzle threaded pipe, and a release spraying structure is mounted at the bottom end of the nozzle threaded pipe. The release spraying structure comprises a spraying pipe, a plurality of spraying holes, a dispersion disc, a control connecting assembly, a mounting sleeve and a closing assembly; the mode that the spraying holes are matched with the dispersion disc is adopted, the overall spraying uniformity of the hot melt material can be guaranteed when a fire breaks out, a release spraying structure is adopted, the installation mode of an external glass tube is adopted, in daily installation, the glass tube is located below the dispersion disc, and in the spraying process of the hot melt material, the glass tube is not prone to falling off. Mounting parts of the glass tube cannot block the hot melt material, so that the spraying uniformity of the hot melt material is ensured.

Description

Technical Field

[0001] This utility model relates to the field of nozzle assembly technology, specifically to an adjustable angle nozzle assembly for a hot melt machine. Background Technology

[0002] Hot melt adhesive machines are automated application equipment mainly used for hot melt adhesive spraying, scraping, rolling, coating, and injection. They are widely used in household products (diapers, sanitary napkins, mousetraps, cockroach traps, and other disposable products), the automotive industry (interior sealing, headlight manufacturing, windshield assembly, air filters, non-woven fabric lamination, footwear, printing, electronic product assembly, clothing, self-adhesive labels), the packaging industry (carton packaging, cigarette box packaging, Tetra Pak beverage packaging), the coating and lamination industry (trademark paper, double-sided label tape, medical breathable tape), bookbinding, and other industries.

[0003] Existing hot melt machine nozzles mostly adopt a frame structure. The presence of the frame obstructs the smooth flow of the removal and release mechanism and the path of the plug, which is very likely to cause accumulation and affect the uniformity of the material sprayed from the nozzle to the surrounding area. Furthermore, the fusible alloy is located in the middle of the nozzle and is blocked by the splash plate, resulting in a relatively unsatisfactory temperature sensing effect. Therefore, a new technical solution needs to be designed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable angle nozzle assembly for a hot melt machine, in order to solve the problems mentioned in the background art. The existing hot melt machine nozzles mostly adopt a frame structure. The presence of the frame hinders the smooth flow of the removal and release mechanism and the path of the plug, which is very likely to cause accumulation and affect the uniformity of the material spraying from the nozzle to the surrounding area. Furthermore, the fusible alloy is located in the middle of the nozzle and is blocked by the splash plate, resulting in a relatively unsatisfactory temperature sensing effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable angle nozzle assembly for a hot melt machine, comprising a nozzle threaded tube and an operating nut, wherein the operating nut is fixedly installed on the upper end of the nozzle threaded tube, and a release spraying structure is installed at the bottom end of the nozzle threaded tube, wherein the release spraying structure comprises a spraying tube, a plurality of spraying holes, a dispersion disc, a control connection assembly, an installation sleeve, and a closing assembly;

[0006] The control connection assembly includes: two threaded rods, a support plate, two limiting nuts, a support disc, and a glass tube. The two threaded rods are respectively installed on both sides of the lower end of the dispersion disc. The two ends of the support plate are respectively movably fitted onto the upper ends of the two threaded rods. The two limiting nuts are respectively movably fitted onto the upper ends of the two threaded rods.

[0007] A retaining ring is fixedly installed on the upper outer end of the threaded rod, and an annular pressure plate, a spring and an annular rubber sheet are fitted on the circumferential surface of the threaded rod, with the annular pressure plate located above the retaining ring.

[0008] As a preferred embodiment of the adjustable angle nozzle assembly for a hot melt machine according to this utility model, the nozzles are respectively located on both sides of the lower end of the support plate, the support plate is fixedly installed at the center of the upper end of the support plate, the bottom end of the glass tube is movably embedded in the support plate, and the top end is movably embedded in the mounting sleeve.

[0009] As a preferred embodiment of the adjustable angle nozzle assembly for a hot melt machine according to this utility model, the closing assembly includes: a blocking block, a material passage hole, a sealing plug, and a connecting rod;

[0010] The blocking block is fixedly installed inside the spray pipe, the material passage is opened at the center of the blocking block, the sealing plug is movably embedded in the material passage, the top end of the connecting rod is connected to the sealing plug, and the bottom end of the connecting rod is movably embedded in the mounting sleeve and fits against the top end of the glass tube.

[0011] As a preferred embodiment of the adjustable angle nozzle assembly of the hot melt machine of this utility model, the upper end of the dispersing disc is provided with several material passage grooves evenly distributed.

[0012] As a preferred embodiment of the adjustable angle nozzle assembly for a hot melt machine according to this utility model, a sealing sleeve is installed on the inner wall of the mounting sleeve.

[0013] In a preferred embodiment of the adjustable angle nozzle assembly for a hot melt machine according to this utility model, the threaded rod and the dispersing disc are connected by welding.

[0014] As a preferred embodiment of the adjustable angle nozzle assembly for a hot melt machine according to this utility model, the bottom end of the connecting rod is machined with an arc-shaped groove.

[0015] As a preferred embodiment of the adjustable angle nozzle assembly for a hot melt machine according to this utility model, an extrusion plate is fixedly installed at the lower edge of the annular pressure plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the adjustable angle nozzle assembly of the hot melt machine has a reasonable structural design;

[0017] 1. The system employs a combination of several spray holes and a dispersion disc, and utilizes a release spray structure with an external glass tube installation method. During routine installation, the glass tube is positioned below the dispersion disc. When the hot melt material is sprayed, the installation components of the glass tube will not obstruct the hot melt material, ensuring the uniformity of the hot melt material spraying.

[0018] 2. The sealing plug is connected to the glass tube by a connecting rod, and the connecting rod is guided and limited by the installation sleeve. When the glass tube is broken by high temperature, the sealing plug moves downward under the pressure of the hot melt material. The connecting rod and the installation sleeve cooperate to keep the sealing plug in the center position inside the spray pipe, so as to avoid clogging the hot melt material. Attached Figure Description

[0019] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of the closed state of this utility model;

[0021] Figure 3 This is a schematic cross-sectional view of the interconnected structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the threaded rod structure of this utility model.

[0023] In the diagram: 1. Nozzle threaded tube, 2. Operating nut, 3. Spray pipe, 4. Spray hole, 5. Dispersion disc, 6. Mounting sleeve, 7. Threaded rod, 72. Annular rubber sheet, 74. Annular pressure plate, 75. Extrusion plate, 76. Fixing ring, 77. Spring, 8. Support plate, 9. Limit nut, 10. Support disc, 11. Glass tube, 12. Blocking block, 13. Material passage hole, 14. Sealing plug, 15. Connecting rod, 16. Material passage groove, 17. Sealing sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution:

[0026] In this technical solution, an adjustable angle nozzle assembly for a hot melt machine includes a nozzle threaded tube 1 and an operating nut 2. The operating nut 2 is fixedly installed on the upper end of the nozzle threaded tube 1. A release spraying structure is installed at the bottom end of the nozzle threaded tube 1. The release spraying structure includes a spraying tube 3, several spraying holes 4, a dispersion disc 5, a control connection assembly, an installation sleeve 6, and a closing assembly.

[0027] The top end of the spray pipe 3 is connected to the lower end of the nozzle threaded pipe 1. Several spray holes 4 are respectively opened on the lower end of the side wall of the spray pipe 3. The dispersion plate 5 is fixedly installed at the lower end of the spray pipe 3. The control connection component is installed at the lower end of the dispersion plate 5. The mounting sleeve 6 is fixedly embedded in the center of the dispersion plate 5 and communicates with the lower end of the nozzle threaded pipe 1. The closing component is installed inside the nozzle threaded pipe 1 and is connected to the control connection component.

[0028] In this technical solution, during installation, the operator first installs the control connection component at the lower end of the dispersing disc 5, and then closes the closing component through the control connection component to seal the spray pipe 3. Subsequently, by turning the operating nut 2, the threaded rod 7 is tightened and fixed to the upper end of the hot melt machine's feeding end, connecting it to the hot melt machine's feeding end. During use, after the control connection component located at the lower end of the dispersing disc 5 is subjected to high temperature expansion and rupture, the closing component inside the spray pipe 3 opens under the pressure of the hot melt material. The hot melt material enters the spray pipe 3 through the nozzle threaded pipe 1, and is sprayed out through several spray holes 4 on the side wall of the spray pipe 3. The sprayed hot melt material is then dispersed by the dispersing disc 5.

[0029] In some technical solutions, the control connection assembly includes: two threaded rods 7, a support plate 8, two limit nuts 9, a support disc 10, and a glass tube 11;

[0030] Two threaded rods 7 are respectively installed on both sides of the lower end of the dispersing disc 5. The two ends of the support plate 8 are respectively movably fitted onto the upper ends of the two threaded rods 7. Two limit nuts 9 are respectively movably fitted onto the upper ends of the two threaded rods 7 and are respectively located on both sides of the lower end of the support plate 8. The support disc 10 is fixedly installed at the center of the upper end of the support plate 8. The bottom end of the glass tube 11 is movably embedded in the support disc 10, and the top end is movably embedded in the mounting sleeve 6.

[0031] In this technical solution, during assembly, the top of the glass tube 11 is first inserted into the mounting sleeve 6. Then, the support plate 8 is fitted onto the upper ends of the two threaded rods 7. The glass tube 11 is supported by the support plate 10 at the upper end of the support plate 8. Then, two limiting nuts 9 are fitted onto the upper ends of the two threaded rods 7 to support and limit the support plate 8. The liquid or gas inside the glass tube 11 will expand due to high temperature, causing the glass tube 11 to rupture and unable to continuously support the connecting rod 15. Therefore, the connecting rod 15 can move downward within the mounting sleeve 6.

[0032] In some technical solutions, the closing component includes: a blocking block 12, a material passage hole 13, a sealing plug 14, and a connecting rod 15;

[0033] The blocking block 12 is fixedly installed inside the spray pipe 3. The material passage hole 13 is opened at the center of the blocking block 12. The sealing plug 14 is movably embedded in the material passage hole 13. The top end of the connecting rod 15 is connected to the sealing plug 14. The bottom end of the connecting rod 15 is movably embedded in the mounting sleeve 6 and fits against the top end of the glass tube 11.

[0034] In this technical solution, when the glass tube 11 breaks, the sealing plug 14 is dislodged from the material passage 13 inside the blocking block 12 under the pressure of the hot melt material. With the impact of the material flow, the connecting rod 15 and the sealing plug 14 continue to move downward until the top of the sealing plug 14 contacts the upper end of the mounting sleeve 6, thus sealing the top of the mounting sleeve 6.

[0035] In some technical solutions, the upper end of the dispersing disc 5 is evenly provided with several material passage grooves 16, the inner wall of the mounting sleeve 6 is provided with a sealing sleeve 17, the threaded rod 7 is connected to the dispersing disc 5 by welding, and the bottom end of the connecting rod 15 is machined with an arc groove.

[0036] In some technical solutions, a retaining ring 76 is fixedly installed on the upper outer end of the threaded rod 7, and an annular pressure plate 74, a spring 77 and an annular rubber sheet 72 are fitted on the circumferential surface of the threaded rod 7. The annular pressure plate 74 is located on the upper side of the retaining ring 76, and a compression plate 75 is fixedly installed at the lower edge of the annular pressure plate 74.

[0037] In this technical solution, the spring 77 is located on the upper side of the annular pressure plate 74, and the annular rubber sheet 72 is located on the lower side of the fixing ring 7.

[0038] Working principle:

[0039] First, the worker inserts the top of the glass tube 11 into the mounting sleeve 6. Then, the support plate 8 is fitted onto the upper ends of the two threaded rods 7. The support plate 10 on the upper end of the support plate 8 supports the glass tube 11. Next, two limiting nuts 9 are fitted onto the upper ends of the two threaded rods 7 to support and limit the support plate 8. This, in conjunction with the closing assembly, seals the spray pipe 3. Then, by turning the operating nut 2, the threaded rods 7 are tightened and fixed to the upper end of the hot melt machine's feeding end, connecting to the feeding end of the hot melt machine. During use, the liquid or gas inside the glass tube 11 will expand due to the high temperature, leading to… When the glass tube 11 breaks, it can no longer provide continuous support for the connecting rod 15. After the glass tube 11 breaks, the sealing plug 14 is dislodged from the material passage hole 13 inside the blocking block 12 under the pressure of the hot melt material. With the impact of the material flow, the connecting rod 15 and the sealing plug 14 continue to move downward until the top of the sealing plug 14 contacts the upper end of the mounting sleeve 6, sealing the top of the mounting sleeve 6. The hot melt material enters the spray pipe 3 through the nozzle threaded tube 1 and is sprayed out through several spray holes 4 on the side wall of the spray pipe 3. The sprayed hot melt material is dispersed by the set dispersion plate 5.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.

[0041] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An adjustable angle nozzle assembly for a hot melt machine, comprising a nozzle threaded tube (1) and an operating nut (2), characterized in that, The operating nut (2) is fixedly installed on the upper end of the nozzle threaded tube (1). The bottom end of the nozzle threaded tube (1) is equipped with a release spraying structure. The release spraying structure includes a spraying tube (3), several spraying holes (4), a dispersion disc (5), a control connection component, an installation sleeve (6), and a closing component. The top end of the spray pipe (3) is connected to the lower end of the nozzle threaded pipe (1), and a plurality of spray holes (4) are respectively opened on the lower end of the side wall of the spray pipe (3). The dispersion plate (5) is fixedly installed on the lower end of the spray pipe (3). The control connection assembly is installed on the lower end of the dispersion plate (5). The mounting sleeve (6) is fixedly embedded in the center of the dispersion plate (5) and communicates with the lower end of the nozzle threaded pipe (1). The closing assembly is installed inside the nozzle threaded pipe (1) and is connected to the control connection assembly. The control connection assembly includes: two threaded rods (7), a support plate (8), two limiting nuts (9), a support plate (10), and a glass tube (11). The two threaded rods (7) are respectively installed on both sides of the lower end of the dispersion plate (5). The two ends of the support plate (8) are respectively movably fitted onto the upper ends of the two threaded rods (7). The two limiting nuts (9) are respectively movably fitted onto the upper ends of the two threaded rods (7). A fixing ring (76) is fixedly installed on the upper outer end of the threaded rod (7). An annular pressure plate (74), a spring (77) and an annular rubber sheet (72) are fitted on the circumferential surface of the threaded rod (7). The annular pressure plate (74) is located on the upper side of the fixing ring (76).

2. The adjustable angle nozzle assembly for a hot melt machine according to claim 1, characterized in that, Located on both sides of the lower end of the support plate (8), the support plate (10) is fixedly installed at the center of the upper end of the support plate (8), the bottom end of the glass tube (11) is movably embedded in the support plate (10), and the top end is movably embedded in the mounting sleeve (6).

3. The adjustable angle nozzle assembly for a hot melt machine according to claim 2, characterized in that, The closing assembly includes: a blocking block (12), a material passage (13), a sealing plug (14), and a connecting rod (15). The blocking block (12) is fixedly installed inside the spray pipe (3), the material passage hole (13) is opened at the center of the blocking block (12), the sealing plug (14) is movably embedded in the material passage hole (13), the top end of the connecting rod (15) is connected to the sealing plug (14), the bottom end of the connecting rod (15) is movably embedded in the mounting sleeve (6) and fits against the top end of the glass tube (11).

4. The adjustable angle nozzle assembly for a hot melt machine according to claim 1, characterized in that, The upper end of the dispersing disc (5) is evenly provided with several material passage grooves (16).

5. The adjustable angle nozzle assembly for a hot melt machine according to claim 1, characterized in that, A sealing sleeve (17) is installed on the inner wall of the mounting sleeve (6).

6. The adjustable angle nozzle assembly for a hot melt machine according to claim 2, characterized in that, The threaded rod (7) and the dispersion disc (5) are connected by welding.

7. The adjustable angle nozzle assembly for a hot melt machine according to claim 3, characterized in that, The bottom end of the connecting rod (15) is machined with an arc-shaped groove.

8. The adjustable angle nozzle assembly for a hot melt machine according to claim 1, characterized in that, An extrusion sheet (75) is fixedly installed at the lower edge of the annular pressure plate (74).

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