Universal double-hole spray head

Abstract

The utility model discloses a universal double-hole sprayer, which comprises a connecting seat and a distribution head, two ends of the connecting seat are respectively detachably and fixedly connected with equipment and the distribution head, a through hole for one end of the distribution head to be inserted is arranged in the connecting seat, and the other end of the distribution head is a spraying end and is convexly arranged outside the connecting seat; two spraying holes symmetrically arranged relative to the axis of the through hole are formed in the distribution head, one end of each spraying hole is communicated with the through hole, and the other end is located at the spraying end and communicated with the outside; an included angle is formed between the two spraying holes, and the two spraying holes are formed in a spaced mode and gradually get away from each other in the direction from the through hole to the spraying end; the end, away from the spraying end, of the distribution head is connected with equipment, and the equipment is used for conveying substances to be sprayed into the two spraying holes. According to the universal double-hole spray head, double-row spraying can be achieved, the structure is simple, the investment of equipment cost can be reduced, and the maintenance cost is also reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of sprinkler heads, and in particular relates to a universal double-hole sprinkler head. Background Art

[0002] At present, common nozzle assemblies used to spray fluids or other substances that need to be sprayed, such as the nozzles for hot melt adhesives used in production lines, are usually composed of a single spray gun body and a nozzle structure. Generally, the hot melt adhesive machine nozzle assembly has only one nozzle structure, and it is a single-hole nozzle. If two hot melt adhesive strips need to be sprayed at the same time, an additional set of spray gun bodies and nozzles is required to achieve this, which increases the cost.

[0003] Therefore, a new technology is needed to solve the problem of high cost of the nozzle when simultaneously spraying two hot melt adhesive strips in the prior art. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a universal double-hole sprinkler head, which has a simple structure and can reduce the production and maintenance costs of the sprinkler head.

[0005] The utility model adopts the following technical solutions:

[0006] A universal double-hole nozzle comprises a connecting seat and a distribution head, wherein the connecting seat is detachably fixedly connected to the equipment, and a through hole is provided in the connecting seat for inserting one end of the distribution head, and the other end of the distribution head is a spraying end and is protruded outside the connecting seat; two spray holes are provided in the distribution head which are symmetrically arranged relative to the axis of the through hole, and one end of each spray hole is connected to the through hole, and the other end is located at the spraying end and connected to the outside world; there is an angle between the two spray holes, and the two spray holes are arranged at intervals and gradually move away from each other in the direction from the through hole to the spraying end; the distribution head is connected to the equipment at the end away from the spraying end, and the equipment is used to transport the substance to be sprayed into the two spray holes.

[0007] As a further improvement of the technical solution of the present invention, the connecting seat is also provided with an axial hole that is coaxial with the through hole and interconnected, the diameter of the axial hole is smaller than the diameter of the through hole, and a limit plate is protruded from the outside of the distribution head, the limit plate is located in the through hole and the outer edge size is larger than the size of the axial hole, and the end of the distribution head away from the limit plate passes through the axial hole and forms the ejection end.

[0008] As a further improvement of the technical solution of the present utility model, the limiting plate is annular.

[0009] As a further improvement of the technical solution of the present invention, a side surface of the limiting plate away from the ejection end is flush with the end surface of the distribution head.

[0010] As a further improvement of the technical solution of the present invention, a threaded section threadedly connected to the device is provided in the through hole, and when the connecting seat is locked, the limiting plate is abutted and fixed to the end of the device for conveying the material to be sprayed.

[0011] As a further improvement of the technical solution of the present invention, a groove is provided on the distribution head, the notch of the groove is located on the end surface of the distribution head close to the limiting plate, the openings on each of the nozzles away from the ejection end are located at the bottom of the groove, and the material to be ejected enters each of the nozzles through the groove.

[0012] As a further improvement of the technical solution of the present invention, at least one limiting portion is convexly provided on the inner wall of the shaft hole, and a positioning portion corresponding to each limiting portion is provided on the outer side of the distribution head. When each limiting portion is matched and docked with the corresponding positioning portion, the distribution head is radially fixed to the connecting seat.

[0013] As a further improvement of the technical solution of the present invention, the distribution head is provided with a curved surface on the ejection end, and the openings of the two ejection holes at the ejection end are both located on the curved surface.

[0014] As a further improvement of the technical solution of the present utility model, the arcuate surface is a hemispherical surface.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The universal double-hole nozzle of this solution includes a connecting seat and a distribution head. The distribution head can be rotated relative to the connecting seat to adjust the spray angle. Two spray holes are provided in the distribution head. When in use, the distribution head is fixed to the equipment through the connecting seat, such as fixed on the spray gun body of a hot melt glue machine, and hot melt glue can be delivered to the two spray holes at the same time. It is only necessary to install the nozzle of this solution on a single spray gun body to achieve double-line glue spraying, thereby reducing the investment in equipment costs and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technology of the utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] Figure 1 This is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 2 It is a top view of the overall structure of the utility model when two limiting parts are symmetrically provided on the connecting base.

[0020] Reference numerals:

[0021] 1-connecting seat; 11-through hole; 12-axial hole; 121-limiting portion; 13-threaded section;

[0022] 2-distribution head; 21-spray end; 22-spray hole; 23-groove; 24-arc surface; 25-limiting plate. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0024] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. In addition, the terms "upper," "lower," "left," and "right" used in this utility model are only used with respect to the relative positions of the components of the utility model in the accompanying drawings.

[0025] Reference Figure 1 and Figure 2A universal double-hole nozzle, which can be used on a variety of other devices that require nozzles, such as hot melt glue machines, comprises a connecting base 1 and a distribution head 2. The connecting base 1 can be detachably fixedly connected to the device to be connected. Taking the hot melt glue machine as an example, the connecting base 1 can be detachably fixedly connected to the spray gun body of the hot melt glue machine, and the distribution head is rotatably fixedly connected to the connecting base. The connecting base 1 is provided with a through hole 11 for inserting one end of the distribution head 2, and the other end of the distribution head 2 is a spraying end 21 and is protruded from the outside of the connecting base 1; the distribution head 2 is provided with two spray holes 22 symmetrically arranged relative to the axis of the through hole 11, and one end of each spray hole 22 is connected to the through hole 11, and the other end is located at the spraying end 21 and is connected to the outside. There is an angle between the two nozzle holes 22. The two nozzle holes 22 are spaced apart and gradually move away from each other in the direction from the through hole 11 to the ejection end 21. The distribution head 2 is connected to a hot melt glue machine or other equipment at the end away from the ejection end 21. The equipment can deliver the material to be ejected into the two nozzle holes 22. For example, the hot melt glue machine delivers hot melt glue into the two nozzle holes 22. The universal double-hole nozzle of this solution can adjust the spray angle by adjusting the corresponding equipment or rotating the distribution head 2 relative to the connecting base 1. When in use, the distribution head 2 is fixed to the corresponding equipment through the connecting base 1 to achieve dual-line spraying or coating. For example, when installed on the spray gun body of the hot melt glue machine, the spray gun body on the hot melt glue machine can be adjusted and installed together with the connecting base 1 through a threaded connection. The distribution head 2 is provided with two nozzle holes 22. The hot melt glue machine can simultaneously deliver hot melt glue into the two nozzle holes 22. Only the nozzle of this solution needs to be installed on a single spray gun body to achieve dual-line glue spraying, thereby reducing equipment investment and maintenance costs.

[0026] Specifically, the aperture of the nozzle 22 can preferably be φ0.5㎜, and the angle between the two nozzle holes 22 can be set according to actual conditions, for example, the angle between the two nozzle holes 22 can be set to 30°. The position of the opening of the nozzle hole 22 on the curved surface 24 can also be adjusted by setting different angles, that is, the horizontal spacing of the axis centers of the openings of the two nozzle holes 22 on the curved surface 24 can be adjusted.

[0027] Specifically, the connecting seat 1 is also provided with an axial hole 12 which is coaxial with the through hole 11 and is interconnected. The diameter of the axial hole 12 is smaller than the diameter of the through hole 11. A limit plate 25 is protruded from the outside of the distribution head 2. The limit plate 25 is located in the through hole 11 and the outer edge size is larger than the size of the axial hole 12. The end of the distribution head 2 away from the limit plate 25 passes through the axial hole 12 and forms the ejection end 21. The setting of the limit plate 25 can limit the distribution head 2 from escaping from the axial hole 12.

[0028] Specifically, the limiting plate 25 is annular, and the limiting plate 25 and the distribution head 2 are integrally formed, so that the connection structure between the limiting plate 25 and the distribution head 2 is relatively stable.

[0029] Specifically, a side surface of the limiting plate 25 away from the ejection end 21 is flush with the end surface of the distribution head 2 , and has a simple structure and is easy to manufacture.

[0030] Specifically, the through hole 11 is provided with a threaded section 13 that is threadedly connected to a device, such as a hot melt adhesive dispenser. When the connector 1 is locked with the device, the limit plate 25 abuts and secures against the end of the device used to convey the material to be dispensed. The connector 1 can preferably be a locking nut structure with an internal thread, and the cross-section of the connector 1 can be a regular hexagonal shape for easy screwing.

[0031] Specifically, a groove 23 is provided on the distribution head 2, and the notch of the groove 23 is located on the end surface of the distribution head 2 close to the limiting plate 25. The openings on each of the nozzles 22 away from the ejection end 21 are all located at the bottom of the groove 23. The substance to be ejected, such as hot melt adhesive, can enter each of the nozzles 22 through the groove 23.

[0032] Specifically, the inner wall of the shaft hole 12 is provided with at least one limiting portion 121. At this time, the radial cross section of the shaft hole 12 is non-circular, and this radial cross section is parallel to the radial cross section of the through hole 11. The top view of the overall structure when two limiting portions 121 are symmetrically provided in the shaft hole 12 on the connecting seat 1 is shown in FIG. Figure 2 As shown, the outer side of the dispensing head 2 is provided with a positioning portion corresponding to each of the limiting portions 121. When each limiting portion 121 is mated with the corresponding positioning portion, the dispensing head 2 and the connecting base 1 are radially fixed. At this time, the dispensing head 2 cannot rotate within the shaft hole 12. Within the shaft hole 12, the outer side of the dispensing head 2 is tightly connected to the connecting base 1 to prevent leakage of the hot melt adhesive. When used on a hot melt glue machine, the connecting seat 1 is put on the outside of the distribution head 2, and then the end of the hot melt glue delivery on the hot melt glue machine spray gun body is inserted into the through hole 11 and threadedly connected to the connecting seat 1. Before tightening the connecting seat 1 and the spray gun body, the openings of the two spray holes 22 can be adjusted to the appropriate position by rotating the distribution head 2. When the connecting seat 1 is tightened, the distribution head 2 is pressed tightly against the spray gun body, and the glue outlet on the spray gun body is located in the notch of the groove 23. The glue outlet on the spray gun body is connected to the two spray holes 22 through the groove 23. The spray gun body can seal the notch of the groove 23, so that the distribution head 2 and the spray gun body can be locked and not easy to leak.

[0033] Specifically, the dispensing head 2 is provided with a curved surface 24 on the ejection end 21, and the openings of the two ejection holes 22 at the ejection end 21 are both located on the curved surface 24. The curved surface 24 is a hemispherical surface.

[0034] Specifically, during manufacturing, the horizontal spacing between the axes of the openings of the two nozzle holes 22 on the arc surface 24 can be adjusted by adjusting the relative positions of the two nozzle holes according to actual conditions, so as to manufacture a nozzle product that meets the spraying requirements.

[0035] This solution achieves a single-head dual-spray effect, reducing the number of nozzles used and reducing the labor intensity of operators and maintenance personnel during use and installation and removal. For example, when using a hot melt glue machine, after connecting the power, press the "Start" button on the screen to start the hot melt glue machine. The hot melt glue machine enters the automatic operation state. When it detects that cardboard and glass bottles automatically enter the packaging area, the nozzle can simultaneously spray two hot melt glue strips. When production is completed, press the "Stop" button after confirming that the hot melt glue machine is no longer in use. Simply install the nozzle of this solution on a single spray gun body to achieve dual-line glue spraying, thereby reducing equipment investment and maintenance costs.

[0036] For other details of the universal double-hole nozzle described in the present invention, please refer to the prior art and will not be described in detail here.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A universal double-hole nozzle, characterized by: It includes a connecting seat and a distribution head, the connecting seat is detachably fixedly connected to the equipment, the connecting seat is provided with a through hole for one end of the distribution head to be inserted, and the other end of the distribution head is a spraying end and is protruded outside the connecting seat; the distribution head is provided with two spray holes symmetrically arranged relative to the axis of the through hole, one end of each spray hole is connected to the through hole, and the other end is located at the spraying end and connected to the outside world; there is an angle between the two spray holes, the two spray holes are arranged at intervals and gradually move away from each other in the direction from the through hole to the spraying end; the distribution head is connected to the equipment at the end away from the spraying end, and the equipment is used to transport the substance to be sprayed into the two spray holes.

2. The universal double-hole nozzle according to claim 1, characterized in that: The connecting seat is also provided with an axial hole that is coaxial with the through hole and interconnected with each other. The diameter of the axial hole is smaller than the diameter of the through hole. A limit plate is protruded from the outside of the distribution head. The limit plate is located in the through hole and the outer edge size is larger than the size of the axial hole. The end of the distribution head away from the limit plate passes through the axial hole and forms the ejection end.

3. The universal double-hole nozzle according to claim 2, characterized in that: The limiting plate is ring-shaped.

4. The universal double-hole nozzle according to claim 3, characterized in that: A side surface of the limiting plate away from the ejection end is flush with an end surface of the distribution head.

5. The universal double-hole nozzle according to claim 4, characterized in that: A threaded section threadedly connected to the device is provided in the through hole. When the connecting seat is locked with the device, the limiting plate is fixedly abutted against the end of the device for conveying the material to be sprayed.

6. The universal double-hole nozzle according to claim 4, characterized in that: A groove is provided on the distribution head, the notch of the groove is located on the end surface of the distribution head close to the limit plate, the opening of each nozzle away from the ejection end is located at the bottom of the groove, and the material to be ejected enters each nozzle through the groove.

7. The universal double-hole nozzle according to claim 2, characterized in that: At least one limiting portion is protruded from the inner wall of the shaft hole, and a positioning portion corresponding to each limiting portion is provided on the outer side of the distribution head. When each limiting portion is matched with the corresponding positioning portion, the distribution head is radially fixed to the connecting seat.

8. The universal double-hole nozzle according to claim 1, characterized in that: The distribution head is provided with an arc surface at the ejection end, and the openings of the two ejection holes at the ejection end are both located on the arc surface.

9. The universal double-hole nozzle according to claim 8, characterized in that: The arc-shaped surface is a hemispherical surface.

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