CN215612410U - Polyurethane spraying device - Google Patents
Polyurethane spraying device Download PDFInfo
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- CN215612410U CN215612410U CN202122376716.XU CN202122376716U CN215612410U CN 215612410 U CN215612410 U CN 215612410U CN 202122376716 U CN202122376716 U CN 202122376716U CN 215612410 U CN215612410 U CN 215612410U
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- cylindrical shell
- screw
- conical
- polyurethane
- conical head
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Abstract
The utility model discloses a polyurethane spraying device, which comprises a cylindrical shell, wherein a screw rod penetrating hole positioned in the center is arranged in the cylindrical shell, and the polyurethane spraying device is characterized in that: the front end of the cylindrical shell is provided with a conical head and an end cap, the conical head is provided with a central hole, the conical surface of the conical head is provided with longitudinal grooves which are distributed in the circumferential direction and inclined in the same direction, the front end surface of the cylindrical shell is provided with an annular groove, and the annular groove is communicated with the longitudinal grooves; the end cover cap is provided with a nozzle positioned in the center, the end cover cap is matched with and covers the conical head and the front end face of the cylindrical shell, the corresponding annular groove and the longitudinal groove form a guide gas path, the gas outlet of the guide gas path is communicated with the nozzle, and the gas inlet of the guide gas path is arranged on the cylindrical shell. The utility model has good atomization effect and controllable spraying range.
Description
Technical Field
The utility model relates to an improved invention of shoe making equipment, in particular to an improved invention of a polyurethane spraying device.
Background
In the production process of safety shoes, a special process is sometimes needed, namely a technology of mixing, foaming and atomizing two stock solutions of polyurethane AB materials on vamps, and at the moment, if conventional equipment and technology for injecting polyurethane soles are used, the matched equipment is heavy and the quality is difficult to control, so that the required refinement level cannot be achieved; however, if a common spray gun is used, the spray gun pipeline is too narrow, the flow supply is limited, and the requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a polyurethane spraying device with good atomization effect and controllable spraying range.
In order to solve the technical problems, the utility model is realized by adopting the following technical scheme: this kind of polyurethane spraying device, including the cylindricality casing, be equipped with the screw rod that is located the center in the cylindricality casing and wear hole, its characterized in that: the front end of the cylindrical shell is provided with a conical head and an end cap, the conical head is provided with a central hole, the conical surface of the conical head is provided with longitudinal grooves which are distributed in the circumferential direction and inclined in the same direction, the front end surface of the cylindrical shell is provided with an annular groove, and the annular groove is communicated with the longitudinal grooves; the end cover cap is provided with a nozzle positioned in the center, the end cover cap is matched with and covers the conical head and the front end face of the cylindrical shell, the corresponding annular groove and the longitudinal groove form a guide gas path, the gas outlet of the guide gas path is communicated with the nozzle, and the gas inlet of the guide gas path is arranged on the cylindrical shell.
The end cap is provided with a circle of restraint air holes, and the corresponding cylindrical shell is provided with an air inlet hole and a restraint air path communicated with the restraint air holes and the air inlet hole.
Still be equipped with the cooling water chamber in the cylindricality casing, outside the cooling water chamber was around locating the bell mouth, be equipped with cooling water circulation mouth on the periphery wall of corresponding cylindricality casing.
The front end of the screw is provided with a flow guide column, the flow guide column extends into the nozzle, and a gap is reserved between the outer circle of the flow guide column and the inner circle of the nozzle.
The screw penetrating hole is a conical hole, and the front end of the conical screw can be matched and stretched into the conical hole.
The tail end of the screw is provided with an internal thread, and the internal thread is in transmission connection with the mixing motor.
The tail end of the screw is provided with a taper shank, and the taper shank is in transmission connection with the hybrid motor.
The rear end of the cylindrical shell is provided with a screw cap which can be matched and connected with the mixing chamber.
The longitudinal groove is a triangular groove.
The improved polyurethane spraying device has the advantages that the conical head and the guide gas path are arranged, so that the spraying fluid can be controlled to form a spiral shape, the atomization degree is high, the end cap is provided with the constraint gas path, the outer boundary of the fluid is controlled, the raw materials are saved, and the speed is high and the efficiency is high.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial structural view of the present invention.
Fig. 3 is a view showing the structure of the cylindrical casing of the present invention.
Fig. 4 is a right side view of fig. 3 of the present invention.
FIG. 5 is a view showing the construction of the taper shank type screw according to the present invention.
Detailed Description
The drawings show the structure of the utility model, and the details thereof are further described below with reference to the drawings. In the embodiment, the polyurethane spraying device comprises a cylindrical shell 5, a screw 8 penetrating hole located at the center is arranged in the cylindrical shell 5, a conical head 2 and an end cover cap 1 are arranged at the front end of the cylindrical shell 5, the conical head 2 is provided with a central hole, longitudinal grooves 13 which are circumferentially distributed and inclined in the same direction are arranged on the conical surface of the conical head 2, an annular groove 15 is arranged on the front end surface of the cylindrical shell 5, and the annular groove 15 is communicated with the longitudinal grooves 13; the end cap 1 is provided with a nozzle 14 positioned in the center, the end cap 1 is matched with and covers the front end face of the conical head 2 and the cylindrical shell 5, a corresponding annular groove 15 and the longitudinal groove 13 form a guide gas path, the gas outlet of the guide gas path is communicated with the nozzle 14, and the gas inlet 3 of the guide gas path is arranged on the cylindrical shell 5.
According to the working principle of the utility model, the air inlet 3 is communicated with a positive pressure source, the air flow flows out from the nozzle 14 through the air inlet 3, the annular groove 15 and the longitudinal groove 13, the sprayed air flow forms a spiral shape under the action of the plurality of longitudinal grooves 13 inclined in the same direction, when the spraying fluid is extruded out of the nozzle 14, the spraying fluid can be controlled to form the spiral shape under the action of the spiral air flow, and the atomization degree is high.
As a further improved specific implementation, a circle of restricting air holes 11 is arranged on the end cap 1, an air inlet 17 and a restricting air passage 18 communicating the restricting air holes 11 with the air inlet 17 are arranged on the corresponding cylindrical shell 5, an air flow barrier is formed on the periphery of the nozzle 14 through the restricting air holes 11, the outer boundary of the fluid is controlled, and the spraying diameter of the spraying fluid can be controlled by adjusting the air pressure restriction.
As a further improved specific implementation manner, a cooling water cavity 16 is further arranged in the cylindrical shell 5, the cooling water cavity 16 is wound outside the tapered hole, and a cooling water circulation port 4, which contains a water inlet and a water outlet, is arranged on the outer peripheral wall of the corresponding cylindrical shell 5 and is used for rapidly cooling the extruded material.
As a further improved specific embodiment, the front end of the screw 8 is provided with a guide column 12, the guide column 12 extends into the nozzle 14, and a gap is left between the outer circle of the guide column 12 and the inner circle of the nozzle 14 for guiding discharging and controlling the discharging amount.
As a specific embodiment of further improvement, the penetrating hole of the screw 8 is a tapered hole, and the tapered hole can be matched with and extended into the front end of the tapered screw 8, so that the material can be extruded conveniently.
As a further improved embodiment, the tail end of the screw 8 is provided with an internal thread 19 which is in transmission connection with the mixing motor 10 and is convenient to connect and disconnect.
As a further improved embodiment, the tail end of the screw 8 is provided with a taper shank 20 which is in transmission connection with the mixing motor 10 for convenient connection and disconnection.
As a further improved specific embodiment, the rear end of the cylindrical shell 5 is provided with a screw cap 6 which can be matched and connected with the mixing chamber 7, the screw cap is connected quickly by adopting a threaded connection mode, so that the mixing chamber 7 can be detached and is convenient to clean, and the needle valve 9 and the material beating cylinder are integrated on the mixing chamber 7, so that the mixing chamber is small in size and light in weight.
As a specific embodiment of further improvement, the longitudinal groove 13 is a triangular groove, so that the structure of the airflow channel is improved, and the subsequent atomization effect is improved.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. Polyurethane spraying device, including the cylindricality casing, be equipped with the screw rod that is located the center in the cylindricality casing and wear hole, its characterized in that: the front end of the cylindrical shell is provided with a conical head and an end cap, the conical head is provided with a central hole, the conical surface of the conical head is provided with longitudinal grooves which are distributed in the circumferential direction and inclined in the same direction, the front end surface of the cylindrical shell is provided with an annular groove, and the annular groove is communicated with the longitudinal grooves; the end cover cap is provided with a nozzle positioned in the center, the end cover cap is matched with and covers the conical head and the front end face of the cylindrical shell, the corresponding annular groove and the longitudinal groove form a guide gas path, the gas outlet of the guide gas path is communicated with the nozzle, and the gas inlet of the guide gas path is arranged on the cylindrical shell.
2. The polyurethane spray coating device of claim 1, wherein: the end cap is provided with a circle of restraint air holes, and the corresponding cylindrical shell is provided with an air inlet hole and a restraint air path communicated with the restraint air holes and the air inlet hole.
3. The polyurethane spray coating device of claim 1, wherein: still be equipped with the cooling water chamber in the cylindricality casing, outside the cooling water chamber was around locating the bell mouth, be equipped with cooling water circulation mouth on the periphery wall of corresponding cylindricality casing.
4. The polyurethane spray coating device of claim 1, wherein: the front end of the screw is provided with a flow guide column, the flow guide column extends into the nozzle, and a gap is reserved between the outer circle of the flow guide column and the inner circle of the nozzle.
5. The polyurethane spray coating device of claim 1, wherein: the screw penetrating hole is a conical hole, and the front end of the conical screw can be matched and stretched into the conical hole.
6. The polyurethane spraying device according to claim 1 or 5, wherein: the tail end of the screw is provided with an internal thread, and the internal thread is in transmission connection with the mixing motor.
7. The polyurethane spraying device according to claim 1 or 5, wherein: the tail end of the screw is provided with a taper shank, and the taper shank is in transmission connection with the hybrid motor.
8. The polyurethane spray coating device of claim 1, wherein: the rear end of the cylindrical shell is provided with a screw cap which can be matched and connected with the mixing chamber.
9. The polyurethane spray coating device of claim 1, wherein: the longitudinal groove is a triangular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122376716.XU CN215612410U (en) | 2021-09-29 | 2021-09-29 | Polyurethane spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122376716.XU CN215612410U (en) | 2021-09-29 | 2021-09-29 | Polyurethane spraying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215612410U true CN215612410U (en) | 2022-01-25 |
Family
ID=79933519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122376716.XU Active CN215612410U (en) | 2021-09-29 | 2021-09-29 | Polyurethane spraying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215612410U (en) |
-
2021
- 2021-09-29 CN CN202122376716.XU patent/CN215612410U/en active Active
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