CN218475513U - Screw type quantitative needle valve - Google Patents
Screw type quantitative needle valve Download PDFInfo
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- CN218475513U CN218475513U CN202222120347.2U CN202222120347U CN218475513U CN 218475513 U CN218475513 U CN 218475513U CN 202222120347 U CN202222120347 U CN 202222120347U CN 218475513 U CN218475513 U CN 218475513U
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- needle
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- flow channel
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Abstract
The utility model discloses a screw ration needle valve, include: advance gluey seat, play gluey seat and needle, it is provided with a screw valve to advance gluey seat outside, advance to set up a first through-hole and the gluey runner of advancing of one end and this first through-hole intercommunication that link up from top to bottom on gluey seat, advance gluey runner other end through a switching seat and screw valve's play jiao kou intercommunication, form first runner, the second runner that communicates in proper order between needle and first through-hole, second through-hole, the lower extreme that goes out gluey seat is provided with a jiao zui, works as when the needle is in the extension state, the lower terminal surface of needle and the upper end in close contact with who goes out gluey runner make go out the runner disconnection between gluey runner and the second runner, work as when the needle is in the shrink state, go out the runner intercommunication between gluey runner and the second runner. The utility model discloses both can realize the accurate regulation of the volume of dispensing through the frequency of control needle motion, can improve the precision that the point was glued again.
Description
Technical Field
The utility model relates to a dispensing valve technical field, in particular to screw formula ration needle valve.
Background
In industrial production, dispensing is required in many places, such as integrated circuits, semiconductor packages, printed circuit boards, color liquid crystal displays, electronic components, automobile parts, and the like, and therefore, dispensing equipment is widely used. The dispensing valve is one of important components in dispensing equipment, and has the main functions of realizing transportation of a glue medium and controlling glue stop. The existing dispensing valve has low dispensing precision and cannot meet the requirement of precision equipment processing.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a screw quantitative needle valve, this screw quantitative needle valve both can realize the accurate regulation of the point gum volume through the frequency of control valve needle motion, can improve the precision of point gum again.
In order to solve the technical problem, the utility model discloses a technical scheme is: a screw-type quantitative needle valve, comprising: the glue feeding device comprises a glue feeding seat, a glue discharging seat and a valve needle, wherein a screw valve is arranged outside the glue feeding seat, a first through hole which is communicated up and down and a glue feeding runner of which one end is communicated with the first through hole are formed in the glue feeding seat, the other end of the glue feeding runner is communicated with a glue discharging port of the screw valve through a transfer seat, a second through hole communicated with the first through hole is formed in the glue discharging seat arranged below the glue feeding seat, and the lower end of the valve needle of which the upper end is connected with a driving mechanism is sequentially embedded into the first through hole and the second through hole;
the outer surface of the valve needle is arranged in a clearance with the inner walls of the first through hole and the second through hole respectively, so that a first flow passage and a second flow passage which are communicated in sequence are formed between the valve needle and the first through hole and between the valve needle and the second through hole;
when the valve needle is in an extension state, the lower end face of the valve needle is in close contact with the upper end of the glue outlet flow passage, so that the flow passage between the glue outlet flow passage and the second flow passage is disconnected, and when the valve needle is in a contraction state, the flow passage between the glue outlet flow passage and the second flow passage is communicated.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the horizontal part of the adapter is connected with the rubber inlet seat, and the vertical part of the adapter is connected with the screw valve.
2. In the above scheme, a horizontal runner with one end communicated with the glue inlet runner horizontally arranged is arranged in the horizontal part, the other end of the horizontal runner is communicated with a vertical runner arranged in the vertical part, and one end of the vertical runner, which is far away from the horizontal runner, is communicated with the glue outlet of the screw valve.
3. In the above scheme, a guide seat is installed on the upper surface of the glue inlet seat, and the valve needle penetrates through the guide seat and is in sliding fit with the inner wall of the guide seat.
4. In the scheme, the upper end of the valve needle is connected with the piston rod of the air cylinder through a sleeve.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
the screw type quantitative needle valve is provided with a screw valve outside a glue inlet seat, the glue inlet seat is provided with a first through hole which is communicated up and down and a glue inlet flow passage of which one end is communicated with the first through hole, the other end of the glue inlet flow passage is communicated with a glue outlet of the screw valve through a transfer seat, glue is supplied into the glue inlet seat through the screw valve, not only can the regulation and control of glue supply amount be realized, but also the stability of the glue supply amount can be ensured, and the precision of final glue dispensing is improved; furthermore, when the valve needle is in an extension state, the lower end face of the valve needle is in close contact with the upper end of the glue outlet flow channel, so that the flow channel between the glue outlet flow channel and the second flow channel is disconnected, when the valve needle is in a contraction state, the flow channel between the glue outlet flow channel and the second flow channel is communicated, the balance and stability of glue stress in the first flow channel, the second flow channel and the glue outlet flow channel are ensured through the cooperation of the screw valve capable of stably supplying glue, glue is released through the contraction of the valve needle, the accurate adjustment of glue dispensing amount can be realized by controlling the frequency of the movement of the valve needle, and the precision of glue dispensing can be improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the screw type constant needle valve of the present invention;
FIG. 2 is a schematic sectional view of a screw type constant needle valve according to the present invention;
FIG. 3 is a schematic sectional view of a partial structure of the screw type quantitative needle valve of the present invention when the needle is not installed;
fig. 4 is a schematic view of the screw type quantitative needle valve according to the present invention.
In the drawings above: 100. a screw valve; 101. a glue outlet; 1. a glue inlet flow passage; 2. a glue inlet seat; 3. a glue outlet seat; 4. a valve needle; 5. a first through hole; 51. a first flow passage; 6. a second through hole; 61. a second flow passage; 7. a glue outlet; 71. a glue outlet flow channel; 8. connecting sleeves; 9. a guide seat; 10. a sleeve; 11. a mounting seat; 12. a transfer seat; 121. a horizontal portion; 122. a vertical portion; 123. a horizontal flow channel; 124. a vertical flow channel; 13. a drive mechanism.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: a screw-type quantitative needle valve, comprising: the glue feeding device comprises a glue feeding base 2, a glue discharging base 3 and a valve needle 4, wherein a screw valve 100 is arranged on the outer side of the glue feeding base 2, a first through hole 5 which is through up and down and a glue feeding runner 1 with one end communicated with the first through hole 5 are formed in the glue feeding base 2, the other end of the glue feeding runner 1 is communicated with a glue discharging port 101 of the screw valve 100 through a transfer base 12, a second through hole 6 communicated with the first through hole 5 is formed in the glue discharging base 3 arranged below the glue feeding base 2, and the lower end of the valve needle 4, the upper end of which is connected with a driving mechanism 13, is sequentially embedded into the first through hole 5 and the second through hole 6;
the outer surface of the valve needle 4 is arranged in a clearance with the inner walls of the first through hole 5 and the second through hole 6, so that a first flow passage 51 and a second flow passage 61 which are sequentially communicated are formed between the valve needle 4 and the first through hole 5 and the second through hole 6, the lower end of the glue outlet base 3 is provided with a glue outlet nozzle 7, a glue outlet flow passage 71 arranged in the glue outlet nozzle 7 is communicated with the second flow passage 61, and the inner diameter of the glue outlet flow passage 71 is smaller than the outer diameter of the lower end of the valve needle 4;
when the valve needle 4 is in the extension state, the lower end surface of the valve needle 4 is in close contact with the upper end of the glue outlet flow channel 71, so that the flow channel between the glue outlet flow channel 71 and the second flow channel 61 is disconnected, when the valve needle 4 is in the contraction state, the flow channel between the glue outlet flow channel 71 and the second flow channel 61 is communicated, the glue outlet flow channel is directly blocked by the lower end of the valve needle, the quick glue breaking of the glue outlet nozzle can be realized, and the glue overflow situation is avoided.
The horizontal part 121 of the adapter 12 is connected to the glue inlet seat 2, and the vertical part 122 of the adapter 12 is connected to the screw valve 100;
a horizontal flow channel 123 with one end communicated with the horizontally arranged glue inlet flow channel 1 is arranged in the horizontal part 121, the other end of the horizontal flow channel 123 is communicated with a vertical flow channel 124 arranged in the vertical part 122, and one end of the vertical flow channel 124 far away from the horizontal flow channel 123 is communicated with the glue outlet 101 of the screw valve 100.
Example 2: a screw-type quantitative needle valve, comprising: the glue feeding device comprises a glue feeding base 2, a glue discharging base 3 and a valve needle 4, wherein a screw valve 100 is arranged on the outer side of the glue feeding base 2, a first through hole 5 which is through up and down and a glue feeding runner 1 with one end communicated with the first through hole 5 are formed in the glue feeding base 2, the other end of the glue feeding runner 1 is communicated with a glue discharging port 101 of the screw valve 100 through a transfer base 12, a second through hole 6 communicated with the first through hole 5 is formed in the glue discharging base 3 arranged below the glue feeding base 2, and the lower end of the valve needle 4, the upper end of which is connected with a driving mechanism 13, is sequentially embedded into the first through hole 5 and the second through hole 6;
the outer surface of the valve needle 4 is arranged in a clearance with the inner walls of the first through hole 5 and the second through hole 6 respectively, so that a first flow passage 51 and a second flow passage 61 which are sequentially communicated are formed between the valve needle 4 and the first through hole 5 and the second through hole 6, the lower end of the glue outlet base 3 is provided with a glue outlet nozzle 7, a glue outlet flow passage 71 arranged in the glue outlet nozzle 7 is communicated with the second flow passage 61, and the inner diameter of the glue outlet flow passage 71 is smaller than the outer diameter of the lower end of the valve needle 4;
when the valve needle 4 is in the extended state, the lower end surface of the valve needle 4 is in close contact with the upper end of the glue outlet flow passage 71, so that the flow passage between the glue outlet flow passage 71 and the second flow passage 61 is disconnected, and when the valve needle 4 is in the retracted state, the flow passage between the glue outlet flow passage 71 and the second flow passage 61 is communicated.
The upper surface of the glue inlet seat 2 is provided with a guide seat 9, and the valve needle 4 penetrates through the guide seat 9 and is in sliding fit with the inner wall of the guide seat 9;
the upper end of the valve needle 4 is connected with a piston rod of the cylinder through a sleeve 10;
the glue outlet nozzle 7 and the glue outlet base 3 are of an integrated structure; the glue outlet flow passage 71 is communicated with the second flow passage 61 through a conical flow passage;
the upper end of the glue inlet seat 2 is provided with a flange part which extends outwards along the radial direction, and the glue inlet runner 1 which is horizontally arranged is arranged on the flange part; the upper part of the glue outlet seat 3 is connected with the lower part of the glue inlet seat 2 through a connecting sleeve 8;
the driving mechanism 13 is a cylinder; the upper end of the valve needle 4 is connected with a piston rod of the cylinder; the cylinder is fixedly mounted on the guide base 9 through a mounting base 11.
The working principle is as follows: the valve needle is in an initial extension state under the action of the cylinder and is blocked at the upper end of the glue outlet flow channel; the screw valve capable of quantitatively and stably supplying glue is used for continuously injecting glue to be glued from the glue inlet at one end of the glue inlet flow passage, so that the regulation and control of glue supply amount can be realized, the stability of the glue supply amount can be ensured, and the final glue dispensing precision is improved;
glue flows through the first flow passage and the second flow passage; during glue dispensing, the valve needle reciprocates under the action of the cylinder, when the valve needle is in a contraction state, the glue outlet flow channel is communicated with the flow channel between the second flow channels, and glue continuously flows into the glue outlet flow channel and then flows out from the lower end of the glue outlet nozzle; through with can stably supply the screw valve's of gluing cooperation, guarantee the equilibrium and the stability of glue atress in first runner, second runner, the play runner of gluing, rethread needle's shrink releases glue, both can realize the accurate regulation to the point volume of gluing through the frequency of control needle motion, can improve the precision of gluing again.
By adopting the screw type quantitative needle valve, a screw valve is arranged outside the glue inlet seat, the glue inlet seat is provided with a first through hole which is communicated up and down and a glue inlet flow passage of which one end is communicated with the first through hole, the other end of the glue inlet flow passage is communicated with a glue outlet of the screw valve through a transfer seat, and glue is supplied into the glue inlet seat through the screw valve, so that the regulation and control of glue supply quantity can be realized, the stability of the glue supply quantity can be ensured, and the precision of final glue dispensing is improved;
furthermore, when the valve needle is in an extension state, the lower end face of the valve needle is in close contact with the upper end of the glue outlet flow channel, so that the flow channel between the glue outlet flow channel and the second flow channel is disconnected, when the valve needle is in a contraction state, the flow channel between the glue outlet flow channel and the second flow channel is communicated, the balance and stability of glue stress in the first flow channel, the second flow channel and the glue outlet flow channel are ensured through the cooperation of the screw valve capable of stably supplying glue, glue is released through the contraction of the valve needle, the accurate adjustment of glue dispensing amount can be realized by controlling the frequency of the movement of the valve needle, and the precision of glue dispensing can be improved.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. A screw-type quantitative needle valve, comprising: advance gluey seat (2), go out gluey seat (3) and needle (4), its characterized in that: a screw valve (100) is arranged on the outer side of the rubber inlet seat (2), a first through hole (5) which is through up and down and a rubber inlet flow channel (1) with one end communicated with the first through hole (5) are formed in the rubber inlet seat (2), the other end of the rubber inlet flow channel (1) is communicated with a rubber outlet (101) of the screw valve (100) through a transfer seat (12), a second through hole (6) communicated with the first through hole (5) is formed in the rubber outlet seat (3) which is arranged below the rubber inlet seat (2), and the lower end of the valve needle (4) with the upper end connected with a driving mechanism (13) is sequentially embedded into the first through hole (5) and the second through hole (6);
the outer surface of the valve needle (4) is arranged in a clearance with the inner walls of the first through hole (5) and the second through hole (6), so that a first flow passage (51) and a second flow passage (61) which are sequentially communicated are formed between the valve needle (4) and the first through hole (5) and between the valve needle and the second through hole (6), a glue outlet nozzle (7) is arranged at the lower end of the glue outlet seat (3), a glue outlet flow passage (71) formed in the glue outlet nozzle (7) is communicated with the second flow passage (61), and the inner diameter of the glue outlet flow passage (71) is smaller than the outer diameter of the lower end of the valve needle (4);
when the valve needle (4) is in an extension state, the lower end face of the valve needle (4) is in close contact with the upper end of the glue outlet flow channel (71), so that the flow channel between the glue outlet flow channel (71) and the second flow channel (61) is disconnected, and when the valve needle (4) is in a contraction state, the flow channel between the glue outlet flow channel (71) and the second flow channel (61) is communicated.
2. The screw-type quantitative needle valve according to claim 1, characterized in that: horizontal part (121) and the gluey seat (2) of advancing of adapter (12) are connected, vertical portion (122) and the screw-down valve (100) of adapter (12) are connected.
3. The screw-type quantitative needle valve of claim 2, wherein: a horizontal flow channel (123) with one end communicated with the glue inlet flow channel (1) horizontally arranged is formed in the horizontal portion (121), the other end of the horizontal flow channel (123) is communicated with a vertical flow channel (124) formed in the vertical portion (122), and one end, far away from the horizontal flow channel (123), of the vertical flow channel (124) is communicated with a glue outlet (101) of the screw valve (100).
4. The screw-type quantitative needle valve according to claim 1, characterized in that: a guide seat (9) is installed on the upper surface of the rubber inlet seat (2), and the valve needle (4) penetrates through the guide seat (9) and is in sliding fit with the inner wall of the guide seat.
5. The screw type needle valve according to claim 1, wherein: the upper end of the valve needle (4) is connected with a piston rod of the cylinder through a sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222120347.2U CN218475513U (en) | 2022-08-12 | 2022-08-12 | Screw type quantitative needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222120347.2U CN218475513U (en) | 2022-08-12 | 2022-08-12 | Screw type quantitative needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218475513U true CN218475513U (en) | 2023-02-14 |
Family
ID=85166011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222120347.2U Active CN218475513U (en) | 2022-08-12 | 2022-08-12 | Screw type quantitative needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218475513U (en) |
-
2022
- 2022-08-12 CN CN202222120347.2U patent/CN218475513U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 189, Wutaishan Road, High tech Zone, Suzhou City, Jiangsu Province, 215002 Patentee after: Suzhou Zhuozhao dispensing Co.,Ltd. Address before: 215002 No. 3, Phase I, Standard Plant, No. 588, Wutaishan Road, High-tech Zone, Suzhou, Jiangsu Province Patentee before: Suzhou Zhuozhao dispensing Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |