CN112659449B - Conversion type polyurethane injection gun head - Google Patents
Conversion type polyurethane injection gun head Download PDFInfo
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- CN112659449B CN112659449B CN202011398149.1A CN202011398149A CN112659449B CN 112659449 B CN112659449 B CN 112659449B CN 202011398149 A CN202011398149 A CN 202011398149A CN 112659449 B CN112659449 B CN 112659449B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a conversion type polyurethane injection gun head, and relates to the technical field of foaming equipment. The invention comprises a gun head body and an adjusting rod; a hydraulic cavity and an adjusting hole are arranged in the gun head body; a first white material feeding hole and a first white material returning hole, a second white material feeding hole and a second white material returning hole are formed in one side of the gun head body, and a first black material feeding hole and a first black material returning hole, a second black material feeding hole and a second black material returning hole are formed in the other side of the gun head body; the adjusting rod is matched with the inner wall of the adjusting hole; a piston matched with the hydraulic chamber is fixed on the adjusting rod; the side surface of the adjusting rod is provided with two first feed back channels and two second feed back channels; the adjusting rod is radially provided with a material injection through hole; the lower end surface of the adjusting rod is provided with a material injection hole communicated with the material injection through hole. According to the invention, the switching of two groups of foaming materials is realized by adjusting the position of the adjusting rod, the process of switching the injection gun head is avoided, and the problems that the conventional injection gun head is inconvenient to switch and the production efficiency is influenced are solved.
Description
Technical Field
The invention belongs to the technical field of foaming equipment, and particularly relates to a conversion type polyurethane injection gun head.
Background
The refrigerator and the ice chest are indispensable electric appliances in life, polyurethane foaming is an indispensable link in product manufacturing, and the requirement on polyurethane foaming equipment is continuously improved in order to adapt to the development of the polyurethane foaming technology. The existing foaming system needs two groups of different polyurethane foaming materials at the same time, and at present, an additional set of premixing system is adopted, and comprises a white material tank in front of the machine, a black material tank in front of the machine, a material injection gun head and an action system of the material injection gun head.
Therefore, in the foaming process, if the foaming material needs to be switched, the material injection gun head needs to be replaced, and the material injection gun head in the other set of premixing system is used for carrying out foaming material injection operation. And annotate material rifle head and be connected with pipeline etc. more, very inconvenient when removing and switching the use, influence the convenience of operation, be unfavorable for production efficiency's improvement.
Disclosure of Invention
The invention aims to provide a conversion type polyurethane injection gun head, which realizes the switching of two groups of foaming materials by adjusting the position of an adjusting rod, avoids the process of switching the injection gun head and solves the problems that the conventional injection gun head is inconvenient to switch and the production efficiency is influenced.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a conversion type polyurethane injection gun head, which comprises an injection gun head; the material injection gun head comprises a gun head body and an adjusting rod; a hydraulic cavity and an adjusting hole are formed in the gun head body; the upper end of the adjusting hole is communicated with the inner bottom surface of the hydraulic cavity, and the lower end of the adjusting hole penetrates through the gun head body;
the gun head body is provided with a hydraulic oil port communicated with the hydraulic cavity and is communicated with a hydraulic system through a pipeline;
a first white material feeding hole and a first white material returning hole, and a second white material feeding hole and a second white material returning hole are formed in one side of the gun head body; the first white material feeding hole and the first white material returning hole, and the second white material feeding hole and the second white material returning hole are axially distributed along the adjusting hole and are communicated with the adjusting hole;
the other side of the gun head body is provided with a first black material feeding hole, a first black material returning hole, a second black material feeding hole and a second black material returning hole; the first black material feeding hole and the first black material returning hole, and the second black material feeding hole and the second black material returning hole are axially distributed along the adjusting hole and are communicated with the adjusting hole;
the adjusting rod is matched with the inner wall of the adjusting hole; the peripheral side surface of the adjusting rod is fixedly connected with a piston matched with the hydraulic chamber; the upper end of the adjusting rod penetrates through the gun head body and is in transmission connection with a driving device;
two first material return channels and two second material return channels are formed in the circumferential side of the adjusting rod; the circumferential side of the adjusting rod is radially provided with a material injection through hole; the lower end face of the adjusting rod is provided with a material injection hole communicated with the material injection through hole;
the first material return channel is used for communicating the first white material feeding hole with the first white material return hole, and the other first material return channel is used for communicating the first black material feeding hole with the first black material return hole; the first white material feed inlet is communicated with the first white material feed back port through the first feed back channel, and the second black material feed inlet is communicated with the second black material feed back port through the second feed back channel;
and the material injection through hole is used for communicating the first white material feeding hole and the first black material feeding hole with the material injection hole.
Furthermore, a long shaft gear is fixedly connected to the upper end face of the adjusting rod; the driving device comprises a motor; and an output shaft of the motor is fixedly connected with a gear meshed with the long shaft gear.
Furthermore, the included angle between the rotation center of the material injection through hole and the first material return channel on the horizontal plane is less than 90 degrees, and the material injection through hole and the first material return channel are not communicated.
Further, the lower end of the material injection hole is provided with a one-way valve.
The invention has the following beneficial effects:
according to the invention, the first white material feeding hole, the first white material returning hole, the second white material feeding hole, the second white material returning hole, the first black material feeding hole, the first black material returning hole and the second black material returning hole are formed in the material injection gun head, and the switching between two groups of foaming materials is realized through the adjusting rod, so that the switching between two groups of foaming materials is avoided by switching the material injection gun head, the convenience of operation is effectively improved, and the whole production efficiency is favorably improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a structure of an adjusting lever according to the present invention;
FIG. 2 is a schematic bottom view of the structure of FIG. 1;
FIG. 3 is a schematic structural view of the injection lance head of the present invention in a non-foaming state;
FIG. 4 is a schematic structural view of a second group of foaming materials of the injection gun head according to the present invention in a foaming state;
FIG. 5 is a schematic structural view of a first group of foaming materials of the injection gun head according to the present invention in a foaming state;
in the drawings, the components represented by the respective reference numerals are listed below:
1-a gun head body, 2-an adjusting rod, 3-a driving device, 101-a hydraulic chamber, 102-an adjusting hole, 103-a hydraulic oil port, 104-a first white material feeding hole, 105-a first white material returning hole, 106-a second white material feeding hole, 107-a second white material returning hole, 108-a first black material feeding hole, 109-a first black material returning hole, 110-a second black material feeding hole, 111-a second black material returning hole, 201-a piston, 202-a long shaft gear, 203-a first returning channel, 204-a second returning channel, 205-an injection through hole, 206-an injection hole, 301-a motor and 302-a gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1-5, the present invention is a conversion type polyurethane injection gun head, which comprises an injection gun head; the material injection gun head comprises a gun head body 1 and an adjusting rod 2; a hydraulic cavity 101 and an adjusting hole 102 are arranged in the gun head body 1; the upper end of the adjusting hole 102 is communicated with the inner bottom surface of the hydraulic chamber 101, and the lower end of the adjusting hole penetrates through the gun head body 1.
The gun head body 1 is provided with a hydraulic oil port 103 communicated with the hydraulic chamber 101 and communicated with a hydraulic system through a pipeline. A first white material feeding hole 104 and a first white material returning hole 105, and a second white material feeding hole 106 and a second white material returning hole 107 are formed in one side of the gun head body 1; the first white material inlet 104 and the first white material return opening 105, and the second white material inlet 106 and the second white material return opening 107 are axially distributed along the adjusting hole 102 and are communicated with the adjusting hole 102.
The other side of the gun head body 1 is provided with a first black material feeding hole 108, a first black material returning hole 109, a second black material feeding hole 110 and a second black material returning hole 111; the first black material inlet 108 and the first black material feed back opening 109, and the second black material inlet 110 and the second black material feed back opening 111 are axially distributed along the adjusting hole 102, and are all communicated with the adjusting hole 102.
Meanwhile, the first white material inlet 104 is located below the first white material return opening 105, and the first black material inlet 108 is located below the first black material return opening 109. And the second white material inlet 106 is located below the second white material return 107, and the second black material inlet 110 is located below the second black material return 111.
As shown in fig. 1 and 2, the adjusting rod 2 is fitted to the inner wall of the adjusting hole 102; the side surface of the adjusting rod 2 is welded with a piston 201 matched with the hydraulic chamber 101, and a hydraulic system injects or returns hydraulic oil through a hydraulic oil port 103 and acts with the piston 201 to realize the axial movement of the adjusting rod 2.
The upper end of the adjusting rod 2 penetrates through the gun head body 1 and is connected with a driving device 3 in a transmission manner. Specifically, the upper end surface of the adjusting rod 2 is fixedly connected with a long shaft gear 202, and the driving device 3 comprises a motor 301; a gear 302 engaged with the long shaft gear 202 is fixedly connected to an output shaft of the motor 301. The rotation of the adjusting lever 2 in the circumferential direction is achieved by the motor 301.
Two first material return channels 203 and two second material return channels 204 are formed in the circumferential side surface of the adjusting rod 2; the circumferential side surface of the adjusting rod 2 is radially provided with a material injection through hole 205; the lower end surface of the adjusting rod 2 is provided with a material injection hole 206 communicated with the material injection through hole 205, and the lower end of the material injection hole 206 is provided with a one-way valve.
One of the first feed back channels 203 is used for communicating the first white material inlet 104 with the first white material return opening 105, and the other first feed back channel 203 is used for communicating the first black material inlet 108 with the first black material return opening 109.
One of the second feed back channels 204 is used for communicating the second white material feed inlet 106 with the second white material feed back opening 107, and the other second feed back channel 204 is used for communicating the second black material feed inlet 110 with the second black material feed back opening 111;
the injection through hole 205 is used for communicating the first white material inlet 104 and the first black material inlet 108 with the injection hole 206.
As shown in fig. 3, the injection lance head is in a non-foaming state. Specifically, when the adjusting rod 2 is located at the lowest end, the first white material feeding hole 104 and the first white material returning hole 105 are communicated through the first returning material channel 203 on one side of the adjusting rod 2, the first group of white materials realize circulation backflow, and meanwhile, the first black material feeding hole 108 and the first black material returning hole 109 are communicated through the first returning material channel 203 on the other side, so that the first group of black material circulation backflow is realized.
Meanwhile, the second white material inlet 106 and the second white material return opening 107 are communicated through a second return channel 204 on one side of the adjusting rod 2, so that circulating reflux of the second group of white materials is realized. The second black material feed inlet 110 and the second black material feed back opening 111 are communicated through a second feed back channel 204 on the other side, so that the circulation reflux of the black materials of the second group is realized. So that the injection lance head is now in an unfoamed state.
As shown in fig. 4, the injection lance head is in a second set of foam blowing states. Specifically, when the adjusting rod 2 is located at the top, the first white material feeding hole 104 and the first white material returning hole 105 are still communicated through the first returning material channel 203 on one side of the adjusting rod 2, the first group of white materials realize circulation reflux, and meanwhile, the first black material feeding hole 108 and the first black material returning hole 109 are still communicated through the other first returning material channel 203, so that the first group of black materials realize circulation reflux. The length of the first feed back channel 203 is greater than or equal to the moving distance of the adjusting rod 2 at the lowest end and the lowest end, so that the foaming materials of the first group are not in a foaming state.
At this moment, adjust 2 lower extreme positions in the top of second white material feed inlet 106 and second black material feed inlet 110 of pole, make second white material feed back 107 and second black material feed back 111 blocked, thereby make the second group white material get into notes material hole 206 through second white material feed inlet 106, the second group black material gets into through second black material feed inlet 110 and annotates in the material hole 206, thereby realize the mixed foaming of the white material of second group and black material, and by annotating in the material hole 206 lower extreme blowout injection foaming mould, realize the foaming operation.
As shown in fig. 5, when the adjusting rod 2 is located at the lowermost end, the driving device 3 drives the adjusting rod 2 to rotate circumferentially by a certain angle in a non-foaming state, so that two ends of the injecting through hole 205 are respectively communicated with the first white material feeding hole 104 and the first black material feeding hole 108, and the first group of white materials and the first group of black materials enter the injecting hole 206 simultaneously, thereby realizing mixed foaming of the first group of white materials and the first group of black materials, and realizing foaming operation by ejecting from the lower end of the injecting hole 206.
At this time, the second white material inlet 106 and the second white material return 107 are still communicated through the second return channel 204 on one side of the adjusting rod 2, so as to realize circulation reflux of the second group of white materials. The second black material feed inlet 110 and the second black material feed back opening 111 are still communicated through the second feed back channel 204 on the other side, so that the circulation reflux of the black materials of the second group is realized.
Preferably, the included angle between the rotation center of the injecting through hole 205 and the first material returning channel 203 on the horizontal plane is smaller than 90 degrees, and is not communicated, such as 30 degrees or 45 degrees, so that the adjusting rod 2 can rotate by a smaller angle to enable the two ends of the injecting through hole 205 to be respectively communicated with the first white material feeding hole 104 and the first black material feeding hole 108, and the opening width of the second material returning channel 204 can be reduced.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A conversion type polyurethane injection gun head comprises an injection gun head; the method is characterized in that: the material injection gun head comprises a gun head body (1) and an adjusting rod (2); a hydraulic cavity (101) and an adjusting hole (102) are arranged in the gun head body (1); the upper end of the adjusting hole (102) is communicated with the inner bottom surface of the hydraulic cavity (101), and the lower end of the adjusting hole penetrates through the gun head body (1);
the gun head body (1) is provided with a hydraulic oil port (103) communicated with the hydraulic cavity (101) and is communicated with a hydraulic system through a pipeline;
a first white material feeding hole (104), a first white material returning hole (105), a second white material feeding hole (106) and a second white material returning hole (107) are formed in one side of the gun head body (1); the first white material feeding hole (104), the first white material returning hole (105), the second white material feeding hole (106) and the second white material returning hole (107) are axially distributed along the adjusting hole (102) and are communicated with the adjusting hole (102);
the other side of the gun head body (1) is provided with a first black material feeding hole (108), a first black material returning hole (109), a second black material feeding hole (110) and a second black material returning hole (111); the first black material feeding hole (108), the first black material returning hole (109), the second black material feeding hole (110) and the second black material returning hole (111) are axially distributed along the adjusting hole (102) and are communicated with the adjusting hole (102);
the adjusting rod (2) is matched with the inner wall of the adjusting hole (102); the circumferential side surface of the adjusting rod (2) is fixedly connected with a piston (201) matched with the hydraulic chamber (101); the upper end of the adjusting rod (2) penetrates through the gun head body (1) and is in transmission connection with a driving device (3);
the side surface of the adjusting rod (2) is provided with two first feed back channels (203) and two second feed back channels (204); the circumferential side surface of the adjusting rod (2) is radially provided with a material injection through hole (205); the lower end surface of the adjusting rod (2) is provided with a material injection hole (206) communicated with the material injection through hole (205);
one first material returning channel (203) is used for enabling the first white material inlet (104) to be communicated with the first white material returning opening (105), and the other first material returning channel (203) is used for enabling the first black material inlet (108) to be communicated with the first black material returning opening (109);
one second feed back channel (204) is used for communicating the second white material feeding hole (106) with the second white material feed back hole (107), and the other second feed back channel (204) is used for communicating the second black material feeding hole (110) with the second black material feed back hole (111);
when two ends of the material injection through hole (205) are respectively communicated with the first white material feeding hole (104) and the first black material feeding hole (108), the first white material feeding hole (104) and the first black material feeding hole (108) are communicated with the material injection hole (206).
2. The conversion type polyurethane injection lance head according to claim 1, wherein a long shaft gear (202) is fixedly connected to the upper end surface of the adjusting rod (2); the drive device (3) comprises a motor (301); the output shaft of the motor (301) is fixedly connected with a gear (302) meshed with the long shaft gear (202).
3. The converting polyurethane injection lance head according to claim 1 or 2, wherein the centre of rotation of the injection through-hole (205) is at an angle of less than 90 ° to the horizontal plane of the first runner channel (203) and is not connected thereto.
4. The conversion polyurethane injection lance head according to claim 1, wherein the lower end of the injection orifice (206) is provided with a one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011398149.1A CN112659449B (en) | 2020-12-03 | 2020-12-03 | Conversion type polyurethane injection gun head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011398149.1A CN112659449B (en) | 2020-12-03 | 2020-12-03 | Conversion type polyurethane injection gun head |
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| CN112659449A CN112659449A (en) | 2021-04-16 |
| CN112659449B true CN112659449B (en) | 2022-06-07 |
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| CN112659449A (en) | 2021-04-16 |
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