CN114472077A - Dispensing valve and dispensing device - Google Patents
Dispensing valve and dispensing device Download PDFInfo
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- CN114472077A CN114472077A CN202210093154.4A CN202210093154A CN114472077A CN 114472077 A CN114472077 A CN 114472077A CN 202210093154 A CN202210093154 A CN 202210093154A CN 114472077 A CN114472077 A CN 114472077A
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- glue
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- assembly
- glue injection
- inlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
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Abstract
The invention relates to a dispensing valve and a dispensing device with the dispensing valve. The dispensing valve of the invention comprises: the glue injection assembly is provided with a glue injection opening; the nozzle assembly is provided with a first nozzle and a second nozzle, the first nozzle is provided with a first glue inlet, and the second nozzle is provided with a second glue inlet; the nozzle assembly is provided with a first working position and a second working position, and when the nozzle assembly is located at the first working position, the first glue inlet is communicated with the glue injection port; when the nozzle assembly is located at a second working position, the second glue inlet is communicated with the glue injection port; the switching power assembly provides power for switching the nozzle assembly between the first working position and the second working position. The dispensing valve is provided with a plurality of nozzle firing pin combinations with different specifications, so that various combinations can be quickly switched according to requirements, and the working efficiency is effectively improved.
Description
Technical Field
The invention relates to the technical field of dispensing, in particular to a dispensing valve and a dispensing device with the dispensing valve.
Background
At present, when dispensing is performed on a piezoelectric valve, a firing pin and a nozzle with certain specifications are installed, and the glue spraying specification is limited to the range of the glue spraying specification that can be adjusted by the current nozzle firing pin combination, such as chinese patent nos. CN113102178A, CN112206935A, CN110548649A, and the like. In actual production, if a larger, wider or smaller and thinner glue line, glue dot and the like are required, glue spraying needs to be stopped first, and then the nozzle and the firing pin with corresponding specifications need to be replaced, so that the production efficiency is greatly reduced, and extra manpower is wasted.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a dispensing valve and a dispensing device having the same, wherein the dispensing valve is provided with a plurality of nozzle and striker combinations with different specifications, so as to realize fast switching of various combinations according to requirements, thereby effectively improving working efficiency.
A dispensing valve, comprising: the glue injection assembly is provided with a glue injection opening; the nozzle assembly is provided with a first nozzle and a second nozzle, the first nozzle is provided with a first glue inlet, and the second nozzle is provided with a second glue inlet; the nozzle assembly is provided with a first working position and a second working position, and when the nozzle assembly is located at the first working position, the first glue inlet is communicated with the glue injection port; when the nozzle assembly is located at a second working position, the second glue inlet is communicated with the glue injection port; the switching power assembly provides power for switching the nozzle assembly between the first working position and the second working position.
Further, when the nozzle assembly is located at a first working position, the first glue inlet is corresponding to and communicated with the glue injection port, and the second glue inlet is not communicated with the glue injection port; when the nozzle assembly is located at the second working position, the second glue inlet corresponds to and is communicated with the glue injection port, and the first glue inlet is not communicated with the glue injection port.
Further, the dispensing valve further comprises a glue blocking assembly, wherein the glue blocking assembly comprises: the stopper is provided with a first position and a second position, and when the first stopper is positioned at the first position, the glue injection assembly is disconnected from the nozzle assembly, so that liquid in the glue injection assembly is not allowed to flow into the nozzle assembly; when the second baffle is at the second position, the glue injection assembly is communicated with the nozzle assembly, and liquid in the glue injection assembly is allowed to flow into the nozzle assembly; the glue blocking power source provides power for the blocking piece to switch between the first position and the second position.
Furthermore, the glue injection assembly comprises a glue injection base, a glue injection channel is arranged in the glue injection base, a glue injection opening is formed in the first end of the glue injection channel, and the stopper is arranged on the glue injection base in a sliding mode so as to disconnect or open the glue injection channel.
Further, the glue injection assembly further comprises a glue cylinder, the glue cylinder is installed on the glue injection base, and the glue cylinder is communicated with the second end of the glue injection runner.
Furthermore, a limiting groove is formed in the stopper, the groove length of the limiting groove is parallel to the sliding direction of the stopper, a limiting pin is arranged on the glue injection base, the limiting pin is arranged in the limiting groove, and the limiting pin slides along the limiting groove;
further, the glue blocking assembly further comprises a glue blocking reset piece, and the glue blocking reset piece is used for driving the blocking piece to deflect to the second position.
Further, the dispensing valve further comprises a valve body, the nozzle assembly comprises a nozzle base, the first nozzle and the second nozzle are arranged on the nozzle base, and the nozzle base slides or rotates on the valve body; be provided with the locating hole on the nozzle base be provided with reference column, location on the valve body and reset the piece, the reference column slides and sets up on the valve body, the reference column can insert in the locating hole, the location resets and is used for the drive the reference column inserts in the locating hole.
Furthermore, the nozzle base rotates on the valve body, and a plurality of positioning holes are circumferentially arrayed on the nozzle base.
Further, the dispensing valve further comprises a valve body, the nozzle assembly is rotatably arranged on the valve body, and the switching power assembly drives the nozzle assembly to rotate.
Further, the nozzle assembly comprises a nozzle base, the first nozzle and the second nozzle are arranged on the nozzle base, and a tooth part is arranged on the outer peripheral wall of the nozzle base; the switching power assembly comprises a gear and a switching power source, the gear is meshed with the tooth part, and the switching power source provides power for the rotation of the gear.
Furthermore, a first glue inlet flow channel and a second glue inlet flow channel are arranged on the peripheral wall of the nozzle base, the first glue inlet is arranged on the peripheral side of the first nozzle, the first glue inlet is communicated with a first end opening of the first glue inlet flow channel, the second glue inlet is arranged on the peripheral side of the second nozzle, and the second glue inlet is communicated with a first end opening of the second glue inlet flow channel; when the nozzle assembly is located at a first working position, the second end opening of the first glue inlet runner corresponds to and is communicated with the glue injection port; when the nozzle assembly is located at the second working position, the second end opening of the second glue inlet flow channel corresponds to and is communicated with the glue injection port.
Further, a first check valve is arranged in the first glue inlet flow channel, the first check valve allows glue to flow from the glue inlet to the first glue inlet, and the first check valve does not allow glue to flow from the first glue inlet to the glue inlet.
Further, a second check valve is arranged in the second glue inlet flow channel, the second check valve allows glue to flow from the glue inlet to the second glue inlet, and the second check valve does not allow glue to flow from the second glue inlet to the glue inlet.
Further, a first striker is slidably arranged in the inner cavity of the first nozzle, a second striker is slidably arranged in the inner cavity of the second nozzle, and an ejection power assembly is arranged on the valve body and used for driving the first striker or the second striker to move.
Further, the ejection power assembly comprises an ejection firing pin and an ejection power source, the ejection firing pin is slidably disposed in the valve body, the ejection firing pin can push the first firing pin or the second firing pin to move, the ejection power source is disposed on the valve body, and the ejection power source is used for driving the ejection firing pin to move.
A dispensing device comprises the dispensing valve.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a dispensing valve according to an embodiment;
FIG. 2 is an exploded view of the dispensing valve according to an embodiment;
FIG. 3 is an exploded view of a nozzle assembly according to an embodiment;
FIG. 4 is a cross-sectional view of a nozzle assembly according to an embodiment;
FIG. 5 is a schematic view of a first position of a stopper according to an embodiment;
FIG. 6 is a diagram illustrating a second position of the stop according to the exemplary embodiment;
reference numerals:
1. a valve body; 11. a positioning column; 2. a glue injection assembly; 21. a glue injection base; 211. injecting glue runner; 22. a spacing pin; 3. a nozzle assembly; 31. a first nozzle; 311. a first striker; 32. a second nozzle; 321. a second striker; 33. a nozzle base; 331. positioning holes; 332. a tooth portion; 333. a first glue inlet flow channel; 334. a second glue inlet flow channel; 335. a rotating shaft; 4. switching the power assembly; 41. a gear; 42. switching power sources; 5. glue blocking components; 51. a stopper; 511. a limiting groove; 52. a glue blocking power source; 53. a glue blocking reset piece; 6. ejecting the power assembly; 61. ejecting a firing pin; 62. and ejecting out a power source.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below are exemplary embodiments for explaining the present invention with reference to the drawings and should not be construed as limiting the present invention, and those skilled in the art can make various changes, modifications, substitutions and alterations to the embodiments without departing from the principle and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
A dispensing valve according to an embodiment of the invention is described below with reference to fig. 1.
Referring to fig. 1 to 6, a dispensing valve according to an embodiment of the present invention includes: glue injection subassembly 2, nozzle assembly 3, switch power component 4. Wherein, injecting glue subassembly 2 is used for injecting glue to nozzle assembly 3, and injecting glue subassembly 2 has the injecting glue mouth. The nozzle assembly 3 is used for outputting glue lines, glue dots and the like, the nozzle assembly 3 is provided with a first nozzle 31 and a second nozzle 32, the first nozzle 31 is provided with a first glue inlet, the second nozzle 32 is provided with a second glue inlet, and the specification of the first nozzle 31 is different from that of the second nozzle 32. The nozzle assembly 3 is provided with a first working position and a second working position, when the nozzle assembly 3 is located at the first working position, the first glue inlet is communicated with the glue injection port, and the second glue inlet is not communicated with the glue injection port; when the nozzle assembly 3 is located at the second working position, the second glue inlet is communicated with the glue injection port, and the first glue inlet is not communicated with the glue injection port. The switching power assembly 4 powers the switching of the nozzle assembly 3 between the first and second operating positions.
The piezoelectric valve structure of single nozzle is all on the existing market, if the nozzle and the firing pin combination need to be changed, the whole disassembly is needed, the process is more complicated, and the working efficiency is influenced. The dispensing valve is provided with two, three or more nozzles, and the specifications of each nozzle are different, so that the nozzles with different specifications can be switched according to the requirements of users, and the working efficiency is effectively improved. Taking the example of assembling two nozzles with a dispensing valve, the nozzle assembly 3 is located at a first working position, the first glue inlet is communicated with the glue injection port, and the glue flows into the first nozzle 31 after sequentially passing through the glue injection port and the first glue inlet; when a larger, wider or smaller and thinner glue line, glue dot and the like are required, the switching power assembly 4 drives the nozzle assembly 3 to move, the nozzle assembly 3 is switched from the first working position to the second working position, the second glue inlet is communicated with the glue injection port, and glue flows into the second nozzle 32 after sequentially passing through the glue injection port and the second glue inlet; and vice versa.
Further optimization is carried out, when the nozzle assembly 3 is located at the first working position, the first glue inlet is corresponding to and communicated with the glue injection port, and the second glue inlet is not communicated with the glue injection port. When the nozzle assembly 3 is located at the second working position, the second glue inlet is corresponding to and communicated with the glue injection port, and the first glue inlet is not communicated with the glue injection port. Through this design, shorten the stroke between nozzle assembly 3 and the injecting glue subassembly 2, can simplify the overall structure of point gluey valve.
Referring to fig. 1-6, in some embodiments, the dispensing valve further comprises a valve body 1. The nozzle assembly 3 is arranged on the valve body 1 in a sliding connection or a rotating connection manner. Simultaneously, also can set up injecting glue subassembly 2, switching power component 4 on valve body 1, injecting glue subassembly 2 pours into glue for nozzle assembly 3, switches power component 4 drive nozzle assembly 3 and slides or rotate. By integrating a plurality of components on the valve body 1, the overall structure of the dispensing valve can be effectively simplified and the overall volume can be reduced.
Specifically, the nozzle assembly 3 includes a nozzle base 33, the first nozzle 31 and the second nozzle 32 are provided on the nozzle base 33, and the nozzle base 33 slides or rotates on the valve body 1. In one embodiment, the nozzle base 33 is mounted on the valve body 1 through a rotating shaft 335, the nozzle base 33 rotates horizontally on the valve body 1 around the rotating shaft 335, and the switching power assembly 4 drives the nozzle assembly 3 to rotate.
More specifically, in order to drive the nozzle base 33 to rotate horizontally, a tooth portion 332 is provided on the outer circumferential wall of the nozzle base 33, the switching power assembly 4 includes a gear 41, and a switching power source 42, the gear 41 is engaged with the tooth portion 332, the switching power source 42 provides power for the rotation of the gear 41, and the switching power source 42 may be an air cylinder, an oil cylinder, a motor, or the like.
Referring to fig. 1 to 6, in some embodiments, at least two positioning holes 331 are disposed on the nozzle base 33, and the valve body 1 is disposed with a positioning column 11 and a positioning resetting member (not shown), the positioning column 11 is slidably disposed on the valve body 1, the positioning column 11 can be inserted into the positioning holes 331, and the positioning resetting member is used for driving the positioning column 11 to be inserted into the positioning holes 331. In the process that the switching power assembly 4 drives the nozzle base 33 to slide or rotate, the nozzle base 33 abuts against the positioning column 11 to push the positioning column 11 to move vertically and upwards, and the positioning reset piece is in a compressed state. When the nozzle assembly 3 is located at the first working position or the second working position, the positioning reset piece drives the positioning column 11 to reset, and the positioning column 11 vertically moves downwards and is inserted into the positioning hole 331. Through the cooperation of the positioning column 11 and the positioning hole 331, the working position of the nozzle assembly 3 can be further positioned, and it is ensured that the glue injection port corresponds to and is communicated with the first glue injection port or the second glue injection port. In one embodiment, the nozzle base 33 rotates on the valve body 1, and a plurality of positioning holes 331 are circumferentially arrayed on the nozzle base 33, each positioning hole 331 corresponds to a nozzle, and when the positioning column 11 is inserted into a certain positioning hole 331, the corresponding nozzle is communicated with the glue injection assembly 2.
Referring to fig. 1-6, in some embodiments, the dispensing valve further comprises an ejection power assembly 6, the ejection power assembly 6 being used to extrude glue in the nozzle assembly 3 out of the inner cavity of the nozzle assembly 3. Specifically, a first striker 311 is slidably disposed in the inner cavity of the first nozzle 31, a second striker 321 is slidably disposed in the inner cavity of the second nozzle 32, and an ejection power assembly 6 is disposed on the valve body 1, wherein the ejection power assembly 6 is used for driving the first striker 311 or the second striker 321 to move. The ejection power assembly 6 comprises an ejection firing pin 61 and an ejection power source 62, the ejection firing pin 61 is slidably arranged in the valve body 1, the ejection firing pin 61 can push the first firing pin 311 or the second firing pin 321 to move, the ejection power source 62 is arranged on the valve body 1, and the ejection power source 62 is used for driving the ejection firing pin 61 to move.
When the nozzle assembly 3 is at the first working position, the first striker 311 is located right below the ejector striker 61, the upper end of the first striker 311 corresponds to the lower end of the ejector striker 61, the ejector power source 62 drives the ejector striker 61 to move vertically downward, the lower end surface of the ejector striker 61 abuts against the upper end surface of the first striker 311, the ejector striker 61 pushes the first striker 311 to move vertically downward, and the first striker 311 extrudes the glue in the inner cavity of the first nozzle 31. When the nozzle assembly 3 is in the second working position, the second striker 321 is located right below the ejector striker 61, the upper end of the second striker 321 corresponds to the lower end of the ejector striker 61, the ejector power source 62 drives the ejector striker 61 to move vertically downward, the lower end surface of the ejector striker 61 abuts against the upper end surface of the second striker 321, the ejector striker 61 pushes the second striker 321 to move vertically downward, and the second striker 321 extrudes the glue in the inner cavity of the second nozzle 32.
More specifically, the ejecting power source 62 drives the striker to move up and down, and reference may be made to the existing injection type dispensing valve, such as chinese patent nos. CN204544541U, CN202070458U, CN204523422U, CN204685391U, and CN 207103040U. In the existing injection type dispensing valve, the technical scheme is basically two: firstly, a firing pin is arranged in a valve body 1, a spring is abutted above the firing pin, a vent hole is further formed in the valve body 1, the firing pin pushes the firing pin to move upwards through air inflow of the vent hole and compresses the spring, then air is exhausted, the spring pushes the firing pin to move downwards so as to drive the firing pin to move upwards and downwards, and glue in the valve body 1 is pushed out through the up-and-down movement of the firing pin to be sprayed out; secondly, the valve body 1 is internally provided with a firing pin which is connected with a lever, the other end of the lever is driven by a piezoelectric mechanism, the piezoelectric mechanism drives the lever to move, and the lever drives the firing pin to move up and down. In one embodiment, the ejection power source 62 includes a lever rotatably disposed on the valve body 1, one end of the lever abuts against the upper end of the ejection pin 61, and the other end of the lever is driven by the piezoelectric mechanism.
Referring to fig. 1 to 6, in some embodiments, a first glue inlet channel 333 and a second glue inlet channel 334 are provided on the outer circumferential wall of the nozzle base 33. The first glue inlet is disposed on the peripheral side of the first nozzle 31, and the first glue inlet is communicated with the first end opening of the first glue inlet flow channel 333. The second glue inlet is disposed on the periphery of the second nozzle 32, and the second glue inlet is communicated with the first end opening of the second glue inlet channel 334. When the nozzle assembly 3 is at the first working position, the second end opening of the first glue inlet runner 333 corresponds to and is communicated with the glue injection port; when the nozzle assembly 3 is at the second working position, the second end opening of the second glue inlet channel 334 corresponds to and communicates with the glue injection port.
Specifically, a first check valve is arranged in the first glue inlet channel 333, the first check valve allows glue to flow from the glue inlet to the first glue inlet, and the first check valve does not allow glue to flow from the first glue inlet to the glue inlet. A second check valve is arranged in the second glue inlet flow passage 334, the second check valve allows glue to flow from the glue inlet to the second glue inlet, and the second check valve does not allow glue to flow from the second glue inlet to the glue inlet. Through this design, at the in-process of switching the nozzle, can prevent that the glue in the nozzle from flowing to injecting glue subassembly 2 or valve body 1.
Referring to fig. 1-6, in some embodiments, the glue injection assembly 2 includes a glue injection base 21, a glue cartridge. The glue injection base 21 is detachably mounted on the valve body 1 through bolts and the like, a glue injection flow passage 211 is arranged in the glue injection base 21, and a glue injection opening is formed in the first end of the glue injection flow passage. The glue cylinder is installed on the glue injection base 21 and communicated with the second end of the glue injection flow channel 211.
Referring to fig. 1 to 6, in some embodiments, the dispensing valve further includes a glue blocking assembly 5, where the glue blocking assembly 5 is used to control on/off between the glue injection assembly 2 and the nozzle assembly 3, that is, during the switching of the position of the nozzle assembly 3, the glue blocking assembly 5 disconnects the communication between the glue injection assembly 2 and the nozzle assembly 3; and after the switching of the nozzle assembly 3 is completed, the communication between the glue injection assembly 2 and the nozzle assembly 3 is recovered. Specifically, the glue blocking assembly 5 comprises a stopper 51 and a glue blocking power source 52. The stopper 51 is slidably disposed on the glue injection base 21 to disconnect or open the glue injection channel, the stopper 51 has a first position and a second position, when the first stopper 51 is located at the first position, the stopper 51 disconnects the glue injection channel, so that the glue injection assembly 2 is disconnected from the nozzle assembly 3, and the liquid in the glue injection assembly 2 is not allowed to flow into the nozzle assembly 3; when the second stopper 51 is in the second position, the stopper 51 opens the glue injection channel, so that the glue injection assembly 2 is communicated with the nozzle assembly 3, and the liquid in the glue injection assembly 2 is allowed to flow into the nozzle assembly 3. The glue blocking power source 52 provides power for switching the stopper 51 between the first position and the second position, and the glue blocking power source 52 may be a pneumatic valve, a motor, an air cylinder, an oil cylinder, or the like.
Further optimization is carried out, a limiting groove 511 is arranged on the stopper 51, the groove length of the limiting groove 511 is parallel to the sliding direction of the stopper 51, a limiting pin 22 is arranged on the glue injection base 21, the limiting pin 22 is arranged in the limiting groove 511, and the limiting pin 22 slides along the limiting groove 511. The stopper pin 22 and the stopper groove 511 define the moving direction and the moving distance of the stopper 51.
Further preferably, the glue blocking assembly 5 further comprises a glue blocking reset member 53, and the glue blocking reset member 53 is used for driving the blocking member 51 to deflect to the second position. In the process of switching the nozzles, the glue blocking power source 52 drives the first stopper 51 to move downwards, and the stopper 51 cuts off the glue injection channel, so that the liquid in the glue injection assembly 2 cannot flow into the nozzle assembly 3. After the nozzle switching is completed, the glue blocking power source 52 is exhausted, the glue blocking reset piece 53 drives the stopper 51 to move upwards, and the stopper 51 opens the glue injection channel, so that the liquid in the glue injection assembly 2 can flow into the nozzle assembly 3.
A specific embodiment according to the present invention is described below with reference to fig. 1.
Referring to fig. 1 to 6, a dispensing valve according to an embodiment of the present invention includes: the automatic glue injection valve comprises a valve body 1, a glue injection assembly 2, a nozzle assembly 3, a switching power assembly 4, a glue blocking assembly 5 and an ejection power assembly 6, wherein the glue injection assembly 2, the nozzle assembly 3, the switching power assembly 4, the glue blocking assembly 5 and the ejection power assembly 6 are arranged on the valve body 1. Wherein, injecting glue subassembly 2 is used for injecting glue to nozzle assembly 3, and injecting glue subassembly 2 has the injecting glue mouth. The nozzle assembly 3 is used for outputting glue lines, glue dots and the like, the nozzle assembly 3 is provided with a first nozzle 31 and a second nozzle 32, the first nozzle 31 is provided with a first glue inlet, the second nozzle 32 is provided with a second glue inlet, and the specification of the first nozzle 31 is different from that of the second nozzle 32. The nozzle assembly 3 is provided with a first working position and a second working position, when the nozzle assembly 3 is located at the first working position, the first glue inlet is corresponding to and communicated with the glue injection port, and the second glue inlet is not communicated with the glue injection port; when the nozzle assembly 3 is located at the second working position, the second glue inlet is corresponding to and communicated with the glue injection port, and the first glue inlet is not communicated with the glue injection port. The switching power assembly 4 powers the switching of the nozzle assembly 3 between the first and second operating positions. The glue resisting assembly 5 is used for controlling the connection and disconnection between the glue injection assembly 2 and the nozzle assembly 3, namely in the process of switching the positions of the nozzle assembly 3, the glue resisting assembly 5 disconnects the connection between the glue injection assembly 2 and the nozzle assembly 3; and after the switching of the nozzle assembly 3 is completed, the communication between the glue injection assembly 2 and the nozzle assembly 3 is recovered. The ejection power assembly 6 is used for extruding glue in the nozzle assembly 3 out of the inner cavity of the nozzle assembly 3.
Referring to fig. 1 to 6, a positioning column 11 and a positioning reset member are disposed on the bottom surface of the valve body 1. Wherein, reference column 11 slides and sets up in the bottom of valve body 1, and reference column 11 reciprocates in the bottom of valve body 1. The positioning reset piece is arranged between the valve body 1 and the positioning column 11 and used for driving the positioning column 11 to vertically move downwards.
Referring to fig. 1 to 6, the glue injection assembly 2 is detachably mounted on the left side surface of the valve body 1. The glue injection assembly 2 includes a glue injection base 21 and a glue cartridge (not shown). The glue injection base 21 is detachably mounted on the left side surface of the valve body 1 through bolts and the like, a glue injection flow passage 211 is arranged in the glue injection base 21, and the right end of the glue injection flow passage is a glue injection port. The packing element is installed on the injecting glue base 21, and the packing element is communicated with the left end of the injecting glue runner 211.
Referring to fig. 1 to 6, the nozzle assembly 3 is rotatably coupled to a bottom surface of the valve body 1. Specifically, the nozzle assembly 3 includes a nozzle base 33, the nozzle base 33 is mounted on the bottom of the valve body 1 by a rotating shaft 335, and the nozzle base 33 horizontally rotates on the valve body 1 about the rotating shaft 335. The nozzle base 33 is provided with the first nozzle 31 and the second nozzle 32.
In order to accurately position the nozzle assembly 3, a plurality of positioning holes 331 are formed in a circumferential array on the top surface of the nozzle base 33, and each positioning hole 331 corresponds to one nozzle. In the process that the switching power assembly 4 drives the nozzle base 33 to rotate, the nozzle base 33 abuts against the positioning column 11 to push the positioning column 11 to move vertically and upwards, and the positioning resetting piece is in a compressed state. When the nozzle assembly 3 is located at the first working position or the second working position, the positioning reset piece drives the positioning column 11 to reset, and the positioning column 11 vertically moves downwards and is inserted into the positioning hole 331.
In order to communicate the glue injection base 21 with the nozzle assembly 3, a first glue inlet channel 333 and a second glue inlet channel 334 are provided on the outer peripheral wall of the nozzle base 33. The first glue inlet is disposed on the peripheral side of the first nozzle 31, and the first glue inlet is communicated with the first end opening of the first glue inlet flow channel 333. The second glue inlet is disposed on the periphery of the second nozzle 32, and the second glue inlet is communicated with the first end opening of the second glue inlet channel 334. When the nozzle assembly 3 is at the first working position, the second end opening of the first glue inlet runner 333 corresponds to and is communicated with the glue injection port; when the nozzle assembly 3 is at the second working position, the second end opening of the second glue inlet channel 334 corresponds to and communicates with the glue injection port.
In addition, a first check valve is arranged in the first glue inlet channel 333, the first check valve allows glue to flow from the glue inlet to the first glue inlet, and the first check valve does not allow glue to flow from the first glue inlet to the glue inlet. A second check valve is arranged in the second glue inlet flow passage 334, the second check valve allows glue to flow from the glue inlet to the second glue inlet, and the second check valve does not allow glue to flow from the second glue inlet to the glue inlet.
In order to horizontally rotate the nozzle base 33, a tooth 332 is provided on the circumferential side surface of the nozzle base 33, and the switching power unit 4 engages with the tooth 332 to rotationally drive the nozzle base 33.
In order to achieve that the nozzle assembly 3 outputs glue, a first striker 311 is arranged in the inner cavity of the first nozzle 31 and a second striker 321 is arranged in the inner cavity of the second nozzle 32.
Referring to fig. 1 to 6, switching power assembly 4 includes a switching power source 42, a gear 41. Wherein, switching power source 42 is installed in valve body 1, and switching power source 42 is the motor. The gear 41 is attached to the output shaft of the switching power source 42, the gear 41 is located at the bottom of the valve body 1, the gear 41 is located on the right side of the nozzle base 33, and the gear 41 is engaged with the tooth portion 332 of the nozzle base 33.
Referring to fig. 1 to 6, the glue blocking assembly 5 is disposed on the left side of the valve body 1. The glue-resisting assembly 5 comprises a stopper 51 and a glue-resisting power source 52. The stopper 51 is slidably disposed on the glue injection base 21 to disconnect or open the glue injection channel, the stopper 51 has a first position and a second position, when the first stopper 51 is located at the first position, the stopper 51 disconnects the glue injection channel, so that the glue injection assembly 2 is disconnected from the nozzle assembly 3, and the liquid in the glue injection assembly 2 is not allowed to flow into the nozzle assembly 3; when the second stopper 51 is in the second position, the stopper 51 opens the glue injection channel, so that the glue injection assembly 2 is communicated with the nozzle assembly 3, and the liquid in the glue injection assembly 2 is allowed to flow into the nozzle assembly 3. The glue blocking power source 52 provides power for switching the stopper 51 between the first position and the second position, and the glue blocking power source 52 is a pneumatic valve.
Specifically, a limiting groove 511 is arranged on the stopper 51, the groove length of the limiting groove 511 is parallel to the sliding direction of the stopper 51, a limiting pin 22 is arranged on the glue injection base 21, the limiting pin 22 is arranged in the limiting groove 511, and the limiting pin 22 slides along the limiting groove 511. The stopper pin 22 and the stopper groove 511 define the moving direction and the moving distance of the stopper 51.
More specifically, the glue blocking assembly 5 further comprises a glue blocking reset 53, and the glue blocking reset 53 is used for driving the blocking member 51 to be biased to the second position. In the process of switching the nozzles, the glue blocking power source 52 drives the first stopper 51 to move downwards, and the stopper 51 cuts off the glue injection channel, so that the liquid in the glue injection assembly 2 cannot flow into the nozzle assembly 3. After the nozzle switching is completed, the glue blocking power source 52 is exhausted, the glue blocking reset piece 53 drives the stopper 51 to move upwards, and the stopper 51 opens the glue injection channel, so that the liquid in the glue injection assembly 2 can flow into the nozzle assembly 3.
Referring to fig. 1 to 6, an ejection power assembly 6 is provided in the valve body 1. The ejection power assembly 6 comprises an ejection striker 61 and an ejection power source 62. The ejector striker 61 is slidably disposed in the valve body 1, and the ejector striker 61 can push the first striker 311 or the second striker 321 to move. The ejection power source 62 is arranged in the valve body 1, and the ejection power source 62 is used for driving the ejection firing pin 61 to move; in this embodiment, the ejection power source 62 includes a lever and a piezoelectric mechanism, the lever is rotatably disposed on the valve body 1, one end of the lever abuts against the upper end of the ejection pin 61, and the other end of the lever is driven by the piezoelectric mechanism.
When the nozzle assembly 3 is at the first working position, the first striker 311 is located right below the ejector striker 61, the upper end of the first striker 311 corresponds to the lower end of the ejector striker 61, the ejector power source 62 drives the ejector striker 61 to move vertically downward, the lower end surface of the ejector striker 61 abuts against the upper end surface of the first striker 311, the ejector striker 61 pushes the first striker 311 to move vertically downward, and the first striker 311 extrudes the glue in the inner cavity of the first nozzle 31. When the nozzle assembly 3 is in the second working position, the second striker 321 is located right below the ejector striker 61, the upper end of the second striker 321 corresponds to the lower end of the ejector striker 61, the ejector power source 62 drives the ejector striker 61 to move vertically downward, the lower end surface of the ejector striker 61 abuts against the upper end surface of the second striker 321, the ejector striker 61 pushes the second striker 321 to move vertically downward, and the second striker 321 extrudes the glue in the inner cavity of the second nozzle 32.
The nozzle switching process of the dispensing valve described in this embodiment: firstly, the pneumatic valve drives the stopper 51 to move downwards, and the stopper 51 stops the glue from flowing from the glue injection flow channel 211 to the nozzle assembly 3; then, the motor drives the gear 41 to rotate, and the gear 41 is engaged with the tooth portion 332 to drive the nozzle base 33 to rotate horizontally; in the process of rotating the nozzle base 33, the nozzle base 33 pushes the positioning column 11 to move upwards, and the positioning reset piece is in a compressed state; after the nozzle base 33 rotates to the working position, the positioning reset piece drives the positioning column 11 to move downwards and insert into the positioning hole 331, the glue injection port of the glue injection base 21 corresponds to and is communicated with the glue injection flow channel of the nozzle base 33, and the glue injection port of the glue injection base 21 also corresponds to and is communicated with the glue injection port of the nozzle; finally, the pneumatic valve is deflated, the glue blocking reset piece 53 drives the blocking piece 51 to move upwards, and glue enters the inner cavity of the nozzle after sequentially passing through the glue injection flow passage 211, the glue injection port, the glue inlet flow passage and the glue inlet port.
In addition, the invention also provides a glue dispensing device which can be a glue dispenser, a mechanical arm with a glue dispensing function, a robot with a glue dispensing function and the like in the market. Specifically, the dispensing device has the dispensing valve, and the rest of the construction and operation of the dispensing device can be known to those skilled in the art and will not be described in detail herein.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the terms "embodiment," "particular embodiment," "example," etc., 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 without interference or contradiction.
Claims (10)
1. A dispensing valve, comprising:
the glue injection assembly (2), the glue injection assembly (2) is provided with a glue injection port;
the nozzle assembly (3) is provided with a first nozzle (31) and a second nozzle (32), the first nozzle (31) is provided with a first glue inlet, and the second nozzle (32) is provided with a second glue inlet; the nozzle assembly (3) is provided with a first working position and a second working position, and when the nozzle assembly (3) is located at the first working position, the first glue inlet is communicated with the glue injection port; when the nozzle assembly (3) is located at a second working position, the second glue inlet is communicated with the glue injection port;
a switching power assembly (4), wherein the switching power assembly (4) provides power for switching the nozzle assembly (3) between the first working position and the second working position.
2. The dispensing valve of claim 1, wherein:
when the nozzle assembly (3) is located at a first working position, the first glue inlet is corresponding to and communicated with the glue injection port, and the second glue inlet is not communicated with the glue injection port;
when the nozzle assembly (3) is located at the second working position, the second glue inlet corresponds to and is communicated with the glue injection port, and the first glue inlet is not communicated with the glue injection port.
3. The dispensing valve of claim 1, further comprising a glue blocking assembly (5), wherein the glue blocking assembly (5):
the stopper (51) is provided with a first position and a second position, when the first stopper (51) is located at the first position, the glue injection assembly (2) is disconnected from the nozzle assembly (3), and liquid in the glue injection assembly (2) is not allowed to flow into the nozzle assembly (3); when the second stopper (51) is in the second position, the glue injection assembly (2) is communicated with the nozzle assembly (3) to allow the liquid in the glue injection assembly (2) to flow into the nozzle assembly (3);
the glue blocking power source (52), and the glue blocking power source (52) provides power for switching the blocking piece (51) between the first position and the second position.
4. The dispensing valve of claim 3, wherein: the glue injection assembly (2) comprises a glue injection base (21), a glue injection flow channel (211) is arranged in the glue injection base (21), a glue injection opening is formed in the first end of the glue injection channel, and the stopper (51) is arranged on the glue injection base (21) in a sliding mode to disconnect or open the glue injection channel.
5. The dispensing valve of claim 4, wherein:
the glue injection assembly (2) further comprises a glue cylinder, the glue cylinder is mounted on the glue injection base (21), and the glue cylinder is communicated with the second end of the glue injection flow channel (211);
a limiting groove (511) is formed in the stopper (51), the groove length of the limiting groove (511) is parallel to the sliding direction of the stopper (51), a limiting pin (22) is arranged on the glue injection base (21), the limiting pin (22) is arranged in the limiting groove (511), and the limiting pin (22) slides along the limiting groove (511);
the glue blocking assembly (5) further comprises a glue blocking reset piece (53), and the glue blocking reset piece (53) is used for driving the blocking piece (51) to deflect to the second position.
6. The dispensing valve of claim 1, wherein:
the dispensing valve further comprises a valve body (1), the nozzle assembly (3) comprises a nozzle base (33), the first nozzle (31) and the second nozzle (32) are arranged on the nozzle base (33), and the nozzle base (33) slides or rotates on the valve body (1);
be provided with locating hole (331) on nozzle base (33) be provided with reference column (11), location on valve body (1) and reset the piece, reference column (11) slide and set up on valve body (1), reference column (11) can insert in locating hole (331), the location resets and is used for the drive reference column (11) insert in locating hole (331).
7. The dispensing valve of claim 6, wherein: the nozzle base (33) rotates on the valve body (1), and a plurality of positioning holes (331) are circumferentially arrayed on the nozzle base (33).
8. The dispensing valve of claim 1, wherein: the dispensing valve further comprises a valve body (1), the nozzle assembly (3) is rotatably arranged on the valve body (1), and the switching power assembly (4) drives the nozzle assembly (3) to rotate.
9. The dispensing valve of claim 8, wherein:
the nozzle assembly (3) comprises a nozzle base (33), the first nozzle (31) and the second nozzle (32) are arranged on the nozzle base (33), and a tooth part (332) is arranged on the outer peripheral wall of the nozzle base (33);
the switching power assembly (4) comprises a gear (41) and a switching power source (42), the gear (41) is meshed with the tooth part (332), and the switching power source (42) provides power for the rotation of the gear (41);
a first glue inlet flow channel (333) and a second glue inlet flow channel (334) are arranged on the peripheral wall of the nozzle base (33), the first glue inlet is arranged on the peripheral side of the first nozzle (31), the first glue inlet is communicated with a first end opening of the first glue inlet flow channel (333), the second glue inlet is arranged on the peripheral side of the second nozzle (32), and the second glue inlet is communicated with a first end opening of the second glue inlet flow channel (334); when the nozzle assembly (3) is located at a first working position, a second end opening of the first glue inlet runner (333) corresponds to and is communicated with the glue injection port; when the nozzle assembly (3) is in a second working position, a second end opening of the second glue inlet flow channel (334) corresponds to and is communicated with the glue injection port;
a first check valve is arranged in the first glue inlet flow channel (333), the first check valve allows glue to flow from the glue inlet to the first glue inlet, and the first check valve does not allow the glue to flow from the first glue inlet to the glue inlet;
a second check valve is arranged in the second glue inlet flow channel (334), the second check valve allows glue to flow from the glue inlet to the second glue inlet, and the second check valve does not allow the glue to flow from the second glue inlet to the glue inlet;
a first striker (311) is arranged in the inner cavity of the first nozzle (31) in a sliding manner, a second striker (321) is arranged in the inner cavity of the second nozzle (32) in a sliding manner, an ejection power assembly (6) is arranged on the valve body (1), and the ejection power assembly (6) is used for driving the first striker (311) or the second striker (321) to move;
the ejection power assembly (6) comprises an ejection firing pin (61) and an ejection power source (62), the ejection firing pin (61) is arranged in the valve body (1) in a sliding mode, the ejection firing pin (61) can push the first firing pin (311) or the second firing pin (321) to move, the ejection power source (62) is arranged on the valve body (1), and the ejection power source (62) is used for driving the ejection firing pin (61) to move.
10. A kind of glue dropping apparatus, its characterized in that: the dispensing device comprises the dispensing valve of any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210093154.4A CN114472077B (en) | 2022-01-26 | 2022-01-26 | Dispensing valve and dispensing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210093154.4A CN114472077B (en) | 2022-01-26 | 2022-01-26 | Dispensing valve and dispensing device |
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| CN114472077A true CN114472077A (en) | 2022-05-13 |
| CN114472077B CN114472077B (en) | 2022-11-01 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014112381A1 (en) * | 2013-01-16 | 2014-07-24 | ＰＲＩＭＥｄｏｔ株式会社 | Discharge device for liquid substance |
| CN204052046U (en) * | 2014-09-02 | 2014-12-31 | 江西科技学院 | A kind of Multi needle glue dispensing valve for point gum machine |
| KR101715234B1 (en) * | 2015-09-08 | 2017-03-13 | (주)세라토크 | Separable module type dispenser |
| CN207401664U (en) * | 2017-09-27 | 2018-05-25 | 深圳市鹏创达自动化有限公司 | Split type pneumatic glue dispensing valve |
| CN209663639U (en) * | 2019-02-22 | 2019-11-22 | 深圳市新枝科技有限公司 | A kind of automated needle changeover head dispenser |
| CN111515082A (en) * | 2020-04-30 | 2020-08-11 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Ultrasonic vibration stirring type piezoelectric injection valve |
| CN211247165U (en) * | 2019-11-11 | 2020-08-14 | 苏州市黄浦空调净化设备有限公司 | High-efficient glue-pouring machine |
| CN112958385A (en) * | 2021-03-16 | 2021-06-15 | 东莞创兆智能设备有限公司 | Rotatable dispensing valve |
-
2022
- 2022-01-26 CN CN202210093154.4A patent/CN114472077B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014112381A1 (en) * | 2013-01-16 | 2014-07-24 | ＰＲＩＭＥｄｏｔ株式会社 | Discharge device for liquid substance |
| CN204052046U (en) * | 2014-09-02 | 2014-12-31 | 江西科技学院 | A kind of Multi needle glue dispensing valve for point gum machine |
| KR101715234B1 (en) * | 2015-09-08 | 2017-03-13 | (주)세라토크 | Separable module type dispenser |
| CN207401664U (en) * | 2017-09-27 | 2018-05-25 | 深圳市鹏创达自动化有限公司 | Split type pneumatic glue dispensing valve |
| CN209663639U (en) * | 2019-02-22 | 2019-11-22 | 深圳市新枝科技有限公司 | A kind of automated needle changeover head dispenser |
| CN211247165U (en) * | 2019-11-11 | 2020-08-14 | 苏州市黄浦空调净化设备有限公司 | High-efficient glue-pouring machine |
| CN111515082A (en) * | 2020-04-30 | 2020-08-11 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Ultrasonic vibration stirring type piezoelectric injection valve |
| CN112958385A (en) * | 2021-03-16 | 2021-06-15 | 东莞创兆智能设备有限公司 | Rotatable dispensing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114472077B (en) | 2022-11-01 |
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