CN213000971U

CN213000971U - Improved hot melt adhesive spray head

Info

Publication number: CN213000971U
Application number: CN202020949118.XU
Authority: CN
Inventors: 张洪雷; 黄凡; 李炎和
Original assignee: Dongguan Donnelley Printing Co Ltd
Current assignee: Dongguan Donnelley Printing Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-04-20
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses an improved hot melt adhesive spray head, which comprises a mounting seat, a reinforcing body and a column body; the mounting seat is provided with a mounting cavity with an upward opening, and internal threads are arranged in the mounting cavity; the center of the reinforcing body is provided with a glue spraying channel, and the upper end of the glue spraying channel is communicated with the installation cavity; the column body integrally extends downwards from the lower end surface of the reinforcing body, and the glue spraying channel penetrates through the lower end surface of the column body; through being equipped with between mount pad and main part and strengthening the solid, should strengthen the solid and extend downwards in the bottom surface of mount pad an organic whole, strengthen solid and the coaxial setting of mount pad, the external diameter that strengthens the solid from top to bottom reduces gradually, and the periphery side that strengthens the solid is the cambered surface of indent, thereby the stress that the shower nozzle lower extreme received is through strengthening the even lower surface of dispersing the mount pad of solid, make the shower nozzle be difficult to appear stress too concentrated and the cracked condition, the periphery side that strengthens the solid simultaneously is the cambered surface of indent, make still have the flexibility under the condition of shower nozzle reinforcing strength.

Description

Improved hot melt adhesive spray head

Technical Field

The utility model belongs to the technical field of the hot melt adhesive rifle and specifically relates to indicate an improvement type hot melt adhesive shower nozzle.

Background

The hot melt adhesive rifle is a fitment instrument, and it extrudes to the region that needs the adhesion after melting solid-state hot melt adhesive to glue the rifle head, and the hot melt adhesive rifle head is the important part of going out gluey in the hot melt adhesive rifle, and the shower nozzle of the hot melt adhesive rifle commonly used in the existing market directly extends the main part that has the length at the lower surface of mount pad for in the use, because of the shower nozzle contact treat spout gluey position and stress too concentrates on the condition that leads to the cylinder easily to break in mount pad and main part junction and take place.

There is a need for a new technique to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an improved hot melt adhesive nozzle head, which can effectively solve the problem of the existing hot melt adhesive nozzle head that the cylinder is easy to break due to the stress concentrated between the cylinder and the mounting seat when spraying glue.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an improved hot melt adhesive spray head comprises a mounting seat, a reinforcing body and a column body; the mounting seat is provided with a mounting cavity with an upward opening, and internal threads are arranged in the mounting cavity; the reinforcing body integrally extends downwards from the bottom surface of the mounting seat, the reinforcing body and the mounting seat are coaxially arranged, the outer diameter of the reinforcing body is gradually reduced from top to bottom, the peripheral side surface of the reinforcing body is an inwards concave cambered surface, a glue spraying channel is formed in the center of the reinforcing body, and the upper end of the glue spraying channel is communicated with the mounting cavity; the cylinder extends downwards integrally from the lower end face of the reinforcing body, and the glue spraying channel penetrates through the lower end face of the cylinder.

As a preferred embodiment: the outer contour of the mounting seat is in a hexagonal prism shape, and chamfers are formed on the upper side edge and the lower side edge of the mounting seat.

As a preferred embodiment: the outer edge of the upper end of the reinforcing body is close to the periphery of the bottom surface of the mounting seat.

As a preferred embodiment: the cylinder is of a cylindrical structure.

As a preferred embodiment: the axial length of the cylinder is smaller than that of the reinforcing body.

As a preferred embodiment: the outer edge of the lower end of the cylinder is provided with a chamfer.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

through being equipped with between mount pad and main part and strengthening the solid, should strengthen the solid and extend downwards in the bottom surface of mount pad an organic whole, strengthen solid and the coaxial setting of mount pad, the external diameter that strengthens the solid from top to bottom reduces gradually, and the periphery side that strengthens the solid is the cambered surface of indent, thereby the stress that the shower nozzle lower extreme received is through strengthening the even lower surface of dispersing the mount pad of solid, make the shower nozzle be difficult to appear stress too concentrated and the cracked condition, the periphery side that strengthens the solid simultaneously is the cambered surface of indent, make still have the flexibility under the condition of shower nozzle reinforcing strength.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is an assembled perspective view of a preferred embodiment of the present invention;

FIG. 2 is a front view of the preferred embodiment of the present invention;

fig. 3 is a cross-sectional view of a preferred embodiment of the present invention.

The attached drawings indicate the following:

10. mounting seat 101 and mounting cavity

11. Inner screw thread 12, chamfer

20. Reinforcing body 201 and glue spraying channel

21. Cambered surface 30, cylinder

31. And (6) chamfering.

Detailed Description

Referring to fig. 1 to 3, a specific structure of a preferred embodiment of the present invention is shown, which includes a mounting base 10, a reinforcing body 20 and a column 30.

The mounting seat 10 has a mounting cavity 101 with an upward opening, an internal thread 11 is arranged in the mounting cavity 101, and when the nozzle is in butt joint with external glue spraying equipment, the nozzle is in threaded mounting connection with the external glue spraying equipment through the internal thread 11 in the mounting cavity 101. In the embodiment, the outer contour of the mounting seat 10 is hexagonal prism shape, and chamfers 12 are formed on both upper and lower sides of the mounting seat 10, and the chamfers 12 can reduce the possibility that the nozzle damages other equipment components.

This reinforcement body 20 extends downwards in the integrative bottom surface of mount pad 10, and reinforcement body 20 and the coaxial setting of mount pad 10, and the external diameter of reinforcement body 20 from top to bottom reduces gradually, and the periphery side of reinforcement body 20 is the cambered surface 21 of indent, can be like this at the influence shower nozzle flexibility as little as possible to can also the at utmost consolidate the shower nozzle. The center of the reinforcing body 20 is provided with a glue spraying channel 201, the upper end of the glue spraying channel 201 is communicated with the installation cavity 101, and the glue spraying channel 201 is used for conveying hot melt glue in glue spraying equipment to the outside of the spray head. In the present embodiment, the outer edge of the upper end of the reinforcing body 20 is close to the periphery of the bottom surface of the mounting seat 10, so that the stress applied to the lower end of the spray head can be distributed to the whole lower surface of the mounting seat 10 to the maximum extent, and the spray head can be prevented from being broken due to too concentrated stress.

The column 30 integrally extends downward from the lower end surface of the reinforcing body 20, and the glue spraying channel 201 penetrates the lower end surface of the column 30. In the present embodiment, the axial length of the column 30 is smaller than the axial length of the reinforcing body 20, which can improve the strength of the spray head and prevent the spray head from being too long to easily break the column 30 and the reinforcing body 20. Further, the cylinder 30 has a cylindrical structure. The lower outer edge of the column 30 is formed with a chamfer 31, and the chamfer 31 can reduce the possibility of damage to other equipment components caused by the spray head.

Detailed description the working principle of the present embodiment is as follows:

firstly, a mounting cavity 101 on a nozzle mounting seat 10 is in threaded mounting connection with external glue spraying equipment, then a column 30 of the nozzle is aligned to a position needing glue spraying, at the moment, the lower end of the column 30 touches the glue spraying position, external stress is generated on the column 30, the stress is transmitted from the lower end of the column 30 to the lower end of a reinforcing body 20 at the upper end of the column 30, the outer diameter of the reinforcing body 20 is gradually reduced from top to bottom, so that the stress at the lower end of the reinforcing body 20 is averagely dispersed to the lower surface of the mounting seat 10 through the reinforcing body 20, the stress at the lower end of the column 30 is averagely dispersed, the occurrence of breakage of the column 30 due to too large stress is greatly reduced, and the peripheral side surface of the reinforcing body 20 is a concave cambered surface 21, so that the nozzle has flexibility under the condition of enhancing strength; and finally, spraying the hot melt adhesive in the adhesive spraying equipment to the position needing to be sprayed with the adhesive through the adhesive spraying channel 201.

The utility model discloses a design focus lies in:

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an improvement type hot melt adhesive shower nozzle which characterized in that: comprises a mounting seat, a reinforcing body and a column body; the mounting seat is provided with a mounting cavity with an upward opening, and internal threads are arranged in the mounting cavity; the reinforcing body integrally extends downwards from the bottom surface of the mounting seat, the reinforcing body and the mounting seat are coaxially arranged, the outer diameter of the reinforcing body is gradually reduced from top to bottom, the peripheral side surface of the reinforcing body is an inwards concave cambered surface, a glue spraying channel is formed in the center of the reinforcing body, and the upper end of the glue spraying channel is communicated with the mounting cavity; the cylinder extends downwards integrally from the lower end face of the reinforcing body, and the glue spraying channel penetrates through the lower end face of the cylinder.

2. The improved hot melt adhesive spray head as claimed in claim 1, wherein: the outer contour of the mounting seat is in a hexagonal prism shape, and chamfers are formed on the upper side edge and the lower side edge of the mounting seat.

3. The improved hot melt adhesive spray head as claimed in claim 1, wherein: the outer edge of the upper end of the reinforcing body is close to the periphery of the bottom surface of the mounting seat.

4. The improved hot melt adhesive spray head as claimed in claim 1, wherein: the cylinder is of a cylindrical structure.

5. The improved hot melt adhesive spray head as claimed in claim 1, wherein: the axial length of the cylinder is smaller than that of the reinforcing body.