Spray head structure of four-hole glue gun

Abstract

The utility model relates to the field of glue spraying devices, in particular to a four-hole glue gun nozzle structure which comprises a nozzle, a nozzle and a porous glue outlet block, the nozzle is arranged at the upper end of the nozzle, a heat preservation sleeve is arranged on the outer side of the nozzle, the upper end of the nozzle is communicated with the porous glue outlet block, a horizontal glue distributing channel is formed in the porous glue outlet block, and glue outlet holes are formed in the upper end of the porous glue outlet block. The glue applying device has the beneficial effects that the four glue outlet holes which can be independently controlled are formed, so that the number of the opened glue outlet holes can be selected according to different application scenes to meet different working requirements, and when finer glue applying operation is needed, part of the glue outlet holes can be closed; under the condition that a larger coverage area is needed, all the parts can be opened; the glue outlet hole is connected with the threaded column through the internal thread, so that a user can easily mount or dismount the sealing cover plate through rotation, and then the opening and closing state of the glue outlet hole is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of glue spraying devices, in particular to a four-hole glue gun nozzle structure. Background Art

[0002] A glue gun is a common tool used to apply hot melt adhesive to various materials. Hot melt adhesive, when heated, becomes liquid and can be squeezed out through the gun's nozzle, where it quickly cools and solidifies, achieving the desired bond. The nozzle is a key component of the gun.

[0003] In the related art, glue gun nozzles all discharge glue through a single hole. This method of discharging glue is too fast, difficult to control, and easy to spray glue. The glue strips produced have little contact surface with the air, slow reaction speed, slow drying speed, which affects the construction speed. The glue is discharged too much and is not economical. Therefore, we propose a four-hole glue gun nozzle structure.

[0004] The above information disclosed in this Background section is only for understanding the background of the present inventive concept and therefore it may contain information that does not constitute prior art. Utility Model Content

[0005] The purpose of the present utility model is to provide a four-hole glue gun nozzle structure to solve the problem that the glue gun nozzle proposed in the above background technology all has one hole for discharging glue, the glue discharging method has a too fast glue discharging speed, is difficult to control, is easy to spray glue, the glue strips have little contact surface with the air, have a slow reaction speed, and a slow drying speed, which affects the construction speed, and produces too much glue and is not economical.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The top of the nozzle is provided with a nozzle, and the lower end of the nozzle is provided with a nozzle.

[0008] In some embodiments, the glue outlet hole is detachably connected to a second threaded column via an internal thread, the upper end of the second threaded column is integrally formed with a sealing cover plate, the lower end of the sealing cover plate is glued with a rubber sealing plate, and the rubber sealing plate is fitted to the upper end of the glue outlet hole.

[0009] In some embodiments, a cross slot is provided at the center of the upper end of the sealing cover plate, and the size of the cross slot matches the shape of the blade of a cross screwdriver.

[0010] In some embodiments, a sealing gasket is fitted on the upper end of the nozzle, the side of the insulation sleeve is threadedly engaged with the tightening seat through an external thread, and the lower end of the tightening seat is tightly fitted with the upper end of the sealing gasket.

[0011] In some embodiments, a plurality of heating wires are installed inside the nozzle, and the heating wires are electric heating wires.

[0012] In some embodiments, the interior of the first threaded column is hollow, and the lower end of the glue discharge nozzle is connected to the horizontal glue distribution channel through the hollow portion of the first threaded column.

[0013] The beneficial effects of the utility model are:

[0014] By setting up four independently controllable glue outlet holes, the number of glue outlet holes to be opened can be selected according to different application scenarios to meet different work needs. When more delicate glue application is required, some glue outlet holes can be closed; and when a larger coverage area is required, all glue outlet holes can be opened. The glue outlet holes are connected to the threaded column through internal threads, so that users can easily install or remove the sealing cover by rotating it, thereby controlling the switch state of the glue outlet holes. The cross-slot design allows for quick disassembly and assembly using a standard cross-screwdriver, simplifying the maintenance process. The lower end of the outer side of the nozzle is covered with an insulation sleeve, which helps to reduce heat loss and protect the glue from damage. The glue is kept in an appropriate temperature range to ensure the fluidity of the glue, thereby improving the quality and efficiency of glue application; multiple sets of heating wires are installed inside the nozzle, which can effectively heat the solid hot melt adhesive to a molten state and ensure that the glue is heated evenly throughout the heating process; by setting sealing gaskets and rubber sealing plates, the glue can be effectively prevented from leaking when not in use, while also reducing air entry, further ensuring the quality and service life of the glue; the entire structural design takes into account the actual operational convenience of the user, whether it is adjusting the number of glue outlet holes or replacing components such as nozzles, it is very simple and convenient, which improves the convenience of use and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a four-hole glue gun nozzle structure proposed by the utility model;

[0016] Figure 2 This is a cross-sectional view of the interior of a porous glue discharging block of a four-hole glue gun nozzle structure proposed in the present invention;

[0017] Figure 3 This is a schematic diagram of the glue discharge nozzle structure of a four-hole glue gun nozzle structure proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the sealing cover structure of a four-hole glue gun nozzle structure proposed in the utility model.

[0019] In the figure: 1 is the nozzle, 2 is the sealing gasket, 3 is the tightening seat, 4 is the insulation sleeve, 5 is the nozzle, 6 is the porous glue discharge block, 7 is the horizontal glue distribution channel, 8 is the connecting hole, 9 is the glue discharge hole, 10 is the first threaded column, 11 is the glue discharge nozzle, 12 is the rotating block, 13 is the glue discharge nozzle, 14 is the sealing cover plate, 15 is the cross slot, and 16 is the second threaded column. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] It should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0022] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figure 1 、 2, 3, 4, a four-hole glue gun nozzle structure, including a nozzle 1, an insulation sleeve 4, a nozzle 5 and a porous glue block 6, the upper end of the nozzle 1 is detachably mounted with a nozzle 5, the outer lower end of the nozzle 5 is sleeved with a insulation sleeve 4, the upper end of the nozzle 5 is connected to a porous glue block 6, a horizontal glue distribution channel 7 is provided inside the porous glue block 6, a connecting hole 8 is provided at the central position of the lower end of the porous glue block 6, the nozzle 5 is connected to the horizontal glue distribution channel 7 inside the porous glue block 6 through the connecting hole 8, the upper end of the porous glue block 6 is spaced apart with four groups of glue holes 9, the lower end of the glue hole 9 is connected to the horizontal distribution channel 7 The glue channel 7 is connected, and an internal thread is provided on the inner wall of the glue outlet hole 9. The glue outlet hole 9 is connected to the first threaded column 10 through the internal thread. The upper end of the first threaded column 10 is integrally formed with a glue outlet nozzle 11, and a glue outlet 13 is provided at the upper end of the glue outlet nozzle 11. A plurality of groups of rotating blocks 12 are symmetrically installed at the lower end of the side of the glue outlet nozzle 11. The rotating blocks 12 are glued to the side of the glue outlet nozzle 11. The heat loss of the glue is reduced by the provided insulation cover 4 to ensure the normal flow of the glue. The number of glue outlet holes can be selected to meet different usage requirements through the provided glue outlet holes 9 and the sealing cover plate 14.

[0024] When the embodiments of the present invention are implemented, Figure 1 、 3 As shown, the glue outlet hole 9 is detachably connected with a second threaded column 16 through an internal thread, and a sealing cover plate 14 is integrally formed at the upper end of the second threaded column 16. A rubber sealing plate is glued to the lower end of the sealing cover plate 14, and the rubber sealing plate is fitted to the upper end of the glue outlet hole 9. For some usage scenarios, the amount of glue output can be reduced, and the glue outlet hole 9 can be sealed by the sealing cover plate 14 and the second threaded column 16, thereby improving the applicability and flexibility of the device.

[0025] When the embodiments of the present invention are implemented, Figure 1 、 4 As shown, a cross slot 15 is provided at the central position of the upper end of the sealing cover 14. The size of the cross slot 15 matches the shape of the blade of a cross screwdriver. A sealing gasket 2 is fitted on the upper end of the nozzle 1. The side of the insulation sleeve 4 is threadedly engaged with the tightening seat 3 through an external thread. The lower end of the tightening seat 3 is tightly fitted with the upper end of the sealing gasket 2. Through the setting of the cross slot 15, the sealing cover 14 can be disassembled by a screwdriver, thereby realizing rapid disassembly and assembly of the sealing cover 14.

[0026] When the embodiments of the present invention are implemented, Figure 1 、 2As shown, multiple groups of heating wires are installed inside the nozzle 1, and the heating wires are electric heating wires. The interior of the first threaded column 10 is hollow, and the lower end of the glue discharge nozzle 11 is connected to the horizontal glue distribution channel 7 through the hollow part of the first threaded column 10. The solid hot melt adhesive is heated to a molten state through the electric heating wire and transported to the horizontal glue distribution channel 7 through the nozzle 5 for the gluing operation.

[0027] In this embodiment, the components are all universal standard parts or components known to those skilled in the art, and their structures and connection principles are all known to those skilled in the art through technical manuals or conventional experimental methods. The nozzle 5 is detachably mounted on the upper end of the nozzle 1, and an insulation sleeve 4 is put on the lower end of the outer side of the nozzle 5. The porous glue discharge block 6 is connected to the upper end of the nozzle 5 to ensure that the nozzle 5 is connected to the horizontal glue distribution channel 7 inside the porous glue discharge block 6 through the connecting hole 8; four glue discharge holes 9 are spaced apart at the upper end of the porous glue discharge block 6, and the glue discharge holes 9 are connected to the first threaded column 10 through an internal thread. The upper end of the first threaded column 10 is integrally formed with a glue discharge nozzle 11. The number of glue discharge holes 9 to be opened is selected according to needs, and the remaining unused glue discharge holes 9 are sealed by the second threaded column 16 and the sealing cover plate 14. The lower end of the sealing cover plate 14 is glued with a rubber sealing plate. To ensure the sealing effect; the side of the insulation sleeve 4 is threadedly engaged with the tightening seat 3 through an external thread, and the lower end of the tightening seat 3 fits tightly with the upper end of the sealing gasket 2 to ensure the sealing of the entire structure; turn on the power, activate the electric heating wire inside the nozzle 1, and heat the solid hot melt adhesive to a molten state; the molten glue is transported to the horizontal glue distribution channel 7 through the nozzle 5, and the glue then passes through the opened glue hole 9 and the hollow part in the first threaded column 10, and finally squeezed out from the glue nozzle 11. If the number of glue holes 9 needs to be changed, the sealing cover 14 can be removed with a cross screwdriver, and the position of the sealing cover 14 can be adjusted to open or close the glue hole 9; after the gluing is completed, disconnect the power, wait for the nozzle 1 to cool completely, remove the nozzle 5, insulation sleeve 4 and other related components for cleaning and maintenance; reassemble after cleaning, and store them properly for next use.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A four-hole glue gun nozzle structure, comprising a nozzle (1), a heat-insulating sleeve (4), a nozzle (5) and a porous glue outlet block (6), characterized in that: The upper end of the nozzle (1) is detachably mounted with a nozzle (5), the lower end of the outer side of the nozzle (5) is sleeved with a heat-insulating sleeve (4), the upper end of the nozzle (5) is connected with a multi-porous glue-discharging block (6), a horizontal glue-distributing channel (7) is provided inside the multi-porous glue-discharging block (6), a connecting hole (8) is provided at the center of the lower end of the multi-porous glue-discharging block (6), the nozzle (5) is connected with the horizontal glue-distributing channel (7) inside the multi-porous glue-discharging block (6) through the connecting hole (8), and the upper end of the multi-porous glue-discharging block (6) is spaced apart with four groups of A glue outlet hole (9), the lower end of the glue outlet hole (9) is connected to the horizontal glue distribution channel (7), an internal thread is provided on the inner wall of the glue outlet hole (9), the glue outlet hole (9) is connected to the first threaded column (10) through the internal thread, the upper end of the first threaded column (10) is integrally formed with a glue outlet nozzle (11), the upper end of the glue outlet nozzle (11) is provided with a glue outlet (13), and a plurality of rotating blocks (12) are symmetrically installed at the lower end of the side of the glue outlet nozzle (11), and the rotating blocks (12) are glued to the side of the glue outlet nozzle (11).

2. A four-hole glue gun nozzle structure according to claim 1, characterized in that: The glue outlet hole (9) is detachably connected to a second threaded column (16) via an internal thread, and a sealing cover plate (14) is integrally formed on the upper end of the second threaded column (16). A rubber sealing plate is glued to the lower end of the sealing cover plate (14), and the rubber sealing plate is fitted to the upper end of the glue outlet hole (9).

3. A four-hole glue gun nozzle structure according to claim 2, characterized in that: A cross slot (15) is provided at the center of the upper end of the sealing cover plate (14), and the size of the cross slot (15) matches the shape of the blade of a cross screwdriver.

4. The four-hole glue gun nozzle structure according to claim 1, characterized in that: The upper end of the nozzle (1) is fitted with a sealing gasket (2), the side of the thermal insulation sleeve (4) is threadedly engaged with the tightening seat (3) via an external thread, and the lower end of the tightening seat (3) is tightly fitted with the upper end of the sealing gasket (2).

5. The four-hole glue gun nozzle structure according to claim 1, characterized in that: A plurality of groups of heating wires are installed inside the nozzle (1), and the heating wires are electric heating wires.

6. The four-hole glue gun nozzle structure according to claim 1, characterized in that: The interior of the first threaded column (10) is hollow, and the lower end of the glue discharge nozzle (11) is connected to the horizontal glue distribution channel (7) through the hollow portion of the first threaded column (10).

Images