CN117139064A - Multi-needle dispensing device and method for adjusting dispensing speed of multi-needle dispensing device - Google Patents
Multi-needle dispensing device and method for adjusting dispensing speed of multi-needle dispensing device Download PDFInfo
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- CN117139064A CN117139064A CN202311397080.4A CN202311397080A CN117139064A CN 117139064 A CN117139064 A CN 117139064A CN 202311397080 A CN202311397080 A CN 202311397080A CN 117139064 A CN117139064 A CN 117139064A
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- flow channel
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000003292 glue Substances 0.000 claims abstract description 350
- 238000004513 sizing Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 13
- 238000007599 discharging Methods 0.000 description 12
- 239000000047 product Substances 0.000 description 11
- 230000008859 change Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 241001232346 Gymnosperma glutinosum Species 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- 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
- B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
- B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
- B05C5/0279—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve independently, e.g. individually, flow controlled
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- Coating Apparatus (AREA)
Abstract
The invention discloses a multi-needle dispensing device, which comprises a dispensing head internally provided with a glue inlet flow channel and at least two glue outlet flow channels; the adjusting parts are movably connected with the dispensing heads and correspond to the dispensing flow passages one by one, the adjusting parts and the inner walls of the corresponding dispensing flow passages enclose to form adjusting flow passages, and the adjusting parts which are movably arranged on the dispensing heads are used for adjusting the resistance of the sizing material passing through the adjusting flow passages so as to adjust the speed of the sizing material passing through the dispensing openings. The invention also discloses a glue outlet speed adjusting method of the multi-needle glue dispensing device. According to the multi-needle glue dispensing device and the glue outlet speed adjusting method thereof, the position of the adjusting piece is changed, and the adjusting piece and the inner wall of the glue outlet flow channel are changed to form the adjusting flow channel, so that the resistance of glue passing through the adjusting flow channel is changed, the extrusion speed of glue at the glue outlet is adjusted, the glue quantity at each glue outlet of the device can be output according to different specific proportions, and the glue dispensing precision is improved while the glue coating requirements of different workpieces are met.
Description
Technical Field
The invention relates to the technical field of dispensing, in particular to a multi-needle dispensing device and a dispensing speed adjusting method thereof.
Background
Dispensing is a common process in industrial production, and mainly comprises the step of smearing glue, oil or other liquid on the surface of a product to enable the product to have the functions of pasting, filling, insulating, fixing, smoothing the surface and the like. The traditional dispensing device generally adopts a single dispensing head to glue the surface of a workpiece, when the dispensing head dispenses glue, the glue outlet speed is kept constant by controlling the pressure in the dispensing head, and the dispensing quantity on the surface of the workpiece is controlled by controlling the dispensing time.
In some special cases, two or more than two positions of the surface of the workpiece are required to be glued, and in order to improve the working efficiency, two or more than two needle tubes are adopted at the output end of the glue dispensing device so as to realize the glue dispensing operation on the two or more positions of the surface of the workpiece.
However, due to the difference of the needle products, the actual dispensing output of the dispensing device is inconsistent with the preset dispensing amount, for example, when two parts of the workpiece are required to be dispensed and the dispensing amounts are required to be the same, a dispensing device with two needles is generally adopted, but the difference exists between the inner cavities of the two needles, and finally, the dispensing amount of the needle with the smaller cross section of the inner cavity is smaller than that of the needle with the larger cross section of the inner cavity, so that the actual dispensing amounts of the two parts of the workpiece are inconsistent; or, when a plurality of positions of the workpiece are required to be glued and the surface glue dispensing amount of a final product is ensured to be in a specific proportion, in the adopted glue dispensing device, although the number of the needles which are the same as the number of positions to be glued and correspond to the number of the positions to be glued are arranged, the cross section size proportion of the inner tube cavity of the needle is different from the specific proportion, the difference between the actual glue amount on the surface of the workpiece after glue dispensing and the specific proportion is finally caused, and when the difference between the cross section size proportion and the characteristic proportion of the inner tube cavity of each needle is larger, the product quality is seriously influenced, so that the product is disqualified; in addition, if the positions of the needed point glue on the surface of the workpiece are not on the same plane, the glue discharging resistance is different due to inconsistent lengths of the needle heads, so that the glue discharging speed is affected, and the surface of the product is difficult to be subjected to glue discharging according to a preset proportion.
Accordingly, there is a need for an improvement over the prior art multi-needle dispensing devices.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a multi-needle dispensing device capable of outputting sizing materials according to different specific proportions so as to improve the dispensing precision and further improve the product quality and a dispensing speed adjusting method thereof.
In order to solve the technical problems, the invention provides a multi-needle dispensing device, which comprises a dispensing head internally provided with a glue inlet flow channel and at least two glue outlet flow channels, wherein one end of each glue outlet flow channel is communicated with the glue inlet flow channel, the other end of each glue outlet flow channel extends downwards to the surface of the corresponding dispensing head to form a glue outlet, and one end of each glue inlet flow channel, which is far away from the corresponding glue outlet flow channel, extends to the surface of the corresponding dispensing head to form a glue inlet;
the glue dispensing head is movably connected with adjusting parts which are in one-to-one correspondence with the glue outlet flow channels, the adjusting parts are enclosed with the inner walls of the corresponding glue outlet flow channels to form adjusting flow channels, and the adjusting parts which are movable on the glue dispensing head are used for adjusting the resistance of glue stock passing through the adjusting flow channels so as to adjust the speed of the glue stock passing through the glue outlet.
Preferably, in order to realize adjustment of the extrusion pressure of the sizing material, thereby adjusting the glue discharge speed of the glue outlet, the adjusting runner comprises a first runner and a second runner which are communicated, the extending direction of the first runner is consistent with the extending direction of a central shaft of the second runner, and the cross section area of the first runner is larger than that of the second runner; the adjusting piece is used for adjusting at least one parameter in the first flow channel length, the second flow channel length and the second flow channel cross-sectional area.
Preferably, in order to adjust the cross-sectional area of the second flow channel, thereby adjust the extrusion speed of the glue outlet glue stock, the adjusting part is arranged on the glue dispensing head in a sliding manner along the length direction perpendicular to the adjusting flow channel so as to adjust the cross-sectional area of the second flow channel, and the adjusting part is connected with a locking assembly, and the locking assembly is used for locking the adjusting part on the glue dispensing head.
Preferably, in order to conveniently adjust the resistance of the glue passing through the adjusting flow channel so as to adjust the glue discharge speed of the glue outlet, the adjusting piece comprises an adjusting rod which extends along the length direction parallel to the first flow channel and stretches into the inner side of the glue outlet flow channel, and the inner wall of the adjusting flow channel comprises the circumferential outer edge of the adjusting rod; the adjusting piece is used for adjusting the length of the first flow channel and the length of the second flow channel.
Preferably, in order to adjust the length of the first flow channel and the length of the second flow channel at the same time, two ends of the adjusting rod are a first end and a second end respectively, the size of the first end is smaller than that of the second end, and the first end is gradually transitionally arranged towards the second end.
Preferably, in order to expand the adjustable range of the second flow channel, the adjusting rod is in clearance fit with the inner wall of the glue outlet flow channel, closed-loop diversion trenches distributed along the axial direction of the adjusting rod are densely distributed at the circumferential outer edge of the adjusting rod, the diversion trenches are mutually communicated to form a diversion channel, the part of the diversion channel in the glue outlet flow channel forms the second flow channel, and a diversion port communicated with the diversion trench is arranged at the end part of the adjusting rod.
Preferably, in order to expand the adjustable range of the second flow channel and improve the adjusting precision at the same time, the adjusting rod is in clearance fit with the inner wall of the glue outlet flow channel; the circumference periphery of adjusting the pole is provided with the heliciform guiding gutter, the guiding gutter extends to the adjusting pole stretches into the one end in the play gluey runner, the guiding gutter is located the part in the play gluey runner forms the second runner.
Preferably, in order to facilitate accurate adjustment of the length of the second flow channel, so as to control the glue discharge speed of the glue from the glue outlet, a scale mark is arranged between the adjusting rod and the glue dispensing head, and the scale mark is used for indicating the length of the second flow channel.
Preferably, in order to facilitate maintenance and replacement of the needle head and ensure long-term stable use of the device, the dispensing head comprises a dispensing head body and the needle head detachably connected with the dispensing head body, and the dispensing runner comprises an inner cavity of the needle head.
In order to solve the technical problems, the invention also provides a method for adjusting the glue outlet speed of the multi-needle point glue dispensing device, which comprises the following steps:
s10, obtaining the ratio of dispensing quantity ranges required by the positions to be dispensed on the surface of the workpiece to be dispensed;
S20, obtaining the ratio of the glue outlet speeds of the glue outlets after the glue inlets enter the glue in the multi-needle dispensing device in the technical scheme;
s30, judging whether the ratio of the glue outlet speeds obtained in the step S20 falls within the ratio of the glue dispensing amount ranges obtained in the step S10, and ending the adjustment operation if the ratio of the glue outlet speeds falls within the ratio of the glue dispensing amount ranges;
s40, adjusting the positions of adjusting parts at all positions in the multi-needle dispensing device to adjust the resistance before the glue passes through the glue outlet, so as to adjust the glue outlet speed ratio of each glue outlet after the glue inlet enters the glue, and then executing the step S20.
Preferably, in order to adjust the resistance of the glue before passing through the glue outlet, the adjusting member in step S40 is used to adjust the length of the glue flow path and/or the cross-sectional area of the glue flow path at the feed side of the glue outlet.
In summary, compared with the prior art, the multi-needle dispensing device and the dispensing speed adjusting method thereof change the position of the adjusting piece, and change the adjusting flow passage formed by surrounding the adjusting piece and the inner wall of the dispensing flow passage, so that the resistance of the glue passing through the adjusting flow passage is changed, the extrusion speed of the glue at the glue outlet is adjusted, the glue quantity at each glue outlet of the device can be output according to different specific proportions, and the dispensing precision is improved while the glue coating requirements of different workpieces are met.
Drawings
FIG. 1 is a schematic diagram of a prior art multi-needle dispensing device;
FIG. 2 is a cross-sectional view taken along the direction A-A of the top view of FIG. 1;
FIG. 3 is a schematic view of a multi-needle dispensing device according to a first embodiment;
FIG. 4 is a schematic cross-sectional view of FIG. 3;
FIG. 5 is a front view of FIG. 4;
FIG. 6 is a schematic diagram of a multi-needle dispensing device according to a second embodiment;
FIG. 7 is a cross-sectional view in the B-B direction of the top view of FIG. 6;
FIG. 8 is a schematic view of a third embodiment of a multi-needle dispensing device;
FIG. 9 is a top view of FIG. 8;
FIG. 10 is a C-C sectional view of FIG. 9;
FIG. 11 is a D-D sectional view of FIG. 9;
fig. 12 is an enlarged view of the portion E of fig. 10;
FIG. 13 is a schematic view of a fourth embodiment of a multi-needle dispensing device;
FIG. 14 is a schematic cross-sectional view of FIG. 13;
fig. 15 is an enlarged view of the portion F of fig. 14;
FIG. 16 is a schematic cross-sectional view of a fifth embodiment of a multi-needle dispensing device;
fig. 17 is an enlarged view of a portion G of fig. 16;
fig. 18 is a schematic structural view of an adjusting member in the fifth embodiment;
FIG. 19 is a schematic view of another view of the adjuster in the fifth embodiment;
FIG. 20 is a schematic cross-sectional view of a sixth embodiment of a multi-needle dispensing device;
fig. 21 is a schematic structural view of an adjusting member in the sixth embodiment;
FIG. 22 is a schematic cross-sectional view of a seventh embodiment of a multi-needle dispensing device;
fig. 23 is an enlarged view of the H portion of fig. 22;
FIG. 24 is a schematic view of a multi-needle dispensing device according to an eighth embodiment;
FIG. 25 is a schematic view of the explosive structure of FIG. 24;
FIG. 26 is a schematic cross-sectional view of FIG. 24;
fig. 27 is an enlarged view of the section I of fig. 26;
FIG. 28 is a flow chart of a method for adjusting the dispensing speed of the multi-needle dispensing device according to the present invention;
in the figure: 1. dispensing heads; 11. a glue inlet flow passage; 111. a glue inlet; 12. a glue outlet flow passage; 121. a glue outlet; 13. a glue injection cavity; 14. sealing by flooding; 15. a sealing plug; 16. a dispensing head body; 161. a first through hole; 162. a second through hole; 17. assembling a pipe; 18. a glue inlet seat; 19. a seal ring; 171. a convex ring; 2. an adjusting member; 21. an adjusting rod; 211. a first end; 212. a second end; 213. a diversion trench; 214. a diversion port; 22. a spring; 23. a slide plate; 24. a slide bar; 25. a guide rod; 26. a fixed rod; 27. a rotary sleeve; 3. adjusting the flow channel; 31. a first flow passage; 32. a second flow passage; 4. a locking assembly; 41. a locking bolt; 42. a fixed block; 5. dispensing a shell; 6. a needle; 61. a needle tube; 62. a needle stand; 63. a connecting seat; 64. a needle sleeve; 7. a workpiece; 8. scale marks; 81. a first scale line; 82. and a second graduation mark.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, in the prior art, a multi-needle dispensing device is taken as an example, and the multi-needle dispensing device comprises a dispensing head 1, wherein the dispensing head 1 comprises a dispensing shell 5 and two needles 6 fixed on the bottom surface of the dispensing shell 5 and extending downwards, the two needles 6 have the same inner diameters, the dispensing shell 5 is of a hollow structure, a glue injection cavity 13 is arranged in the dispensing shell 5, a glue inlet channel 11 communicated above the glue injection cavity 13 is also arranged in the dispensing shell 5, the top end of the glue inlet channel 11 extends upwards to the top surface of the dispensing shell 5 to form a glue inlet 111, the dispensing shell 5 and the needles 6 are enclosed to form a glue outlet channel 12, the bottom end of the glue outlet channel 12 extends downwards to the bottom of the needles 6 to form a glue outlet 121, and the top end of the glue outlet channel 12 is communicated with the glue injection cavity 13.
When the dispensing device is used, the glue material enters the glue inlet flow channel 11 through the glue inlet 111 and is injected into the glue injection cavity 13, and then is discharged from the bottom end of the needle 6, namely the glue outlet 121 through the glue outlet 12, so as to be dispensed. When glue is discharged, although the lengths of the two glue discharging flow passages 12 are consistent, due to the internal difference of products of the two needle heads 6, the difference exists between the cross section sizes of the corresponding glue discharging flow passages 12 contained by the two needle heads 6, and for the glue discharging flow passage 12 with smaller cross section, the resistance of glue passing through the glue discharging flow passage 12 is larger than that of the glue passing through the other glue discharging flow passage 12, so that the glue discharging speeds of the two needle heads 6 are different finally, and the difference of glue discharging amount on the surface of a workpiece 7 is increased along with the increase of glue discharging time of a glue dispensing device, so that the quality of products formed after glue discharging treatment of the workpiece 7 is finally influenced; furthermore, in the device, the structure of the needle 6 is fixed, and the length dimension and the cross section dimension of the glue outlet runner 12 are fixed, so that when the glue dispensing device is used, the glue outlet speeds of two sides are constant, and when the glue dispensing quantity ratio of two parts of the workpiece 7 is required to be far more than 1:1, the device is obviously difficult to meet the requirements.
Based on the above factors, in order to improve the dispensing precision, the product quality formed by dispensing is finally improved, and meanwhile, the invention discloses a plurality of multi-needle dispensing devices which are applicable to different dispensing requirements, as follows.
First embodiment
As shown in fig. 3-5, the multi-needle dispensing device of the first embodiment includes a dispensing head 1 having a glue inlet channel 11 and at least two glue outlet channels 12, wherein one end of each glue outlet channel 12 is communicated with the glue inlet channel 11, the other end extends downwards to the surface of the dispensing head 1 to form a glue outlet 121, and one end of the glue inlet channel 11 away from the glue outlet channel 12 extends to the surface of the dispensing head 1 to form a glue inlet 111; the dispensing head 1 is movably connected with adjusting parts 2 corresponding to the glue outlet flow channels 12 one by one, the adjusting parts 2 and the inner walls of the corresponding glue outlet flow channels 12 are enclosed to form adjusting flow channels 3, and the adjusting parts 2 moving on the dispensing head 1 are used for adjusting the resistance of glue passing through the adjusting flow channels 3 so as to adjust the speed of the glue passing through the glue outlet 121.
In the device, the dispensing head 1 includes a dispensing shell 5 and two needles 6 extending in a vertical direction and distributed side by side (according to the number of dispensing positions, the number of the needles 6 can also be correspondingly changed according to the selection of the device, for example, when three dispensing devices with three needles 6 are needed, the dispensing device is selected), the dispensing shell 5 and a dispensing runner 11 extending in the vertical direction is arranged in the dispensing shell 5, the top of the dispensing runner 11 extends upwards to the top surface of the dispensing shell 5 to form a dispensing opening 111, the dispensing shell 5 and the needles 6 are enclosed to form a dispensing runner 12, the bottom end of the dispensing runner 12 is the bottom end of the needles 6, and the dispensing opening 121 of the dispensing head 1 is formed.
Unlike the prior art, in this embodiment, the adjusting piece 2 corresponding to the glue outlet flow channels 12 one by one is movably disposed on the glue dispensing head 1, the adjusting piece 2 can enclose with the inner wall of the glue outlet flow channels 12 to form the adjusting flow channels 3, in addition, by changing the position of the adjusting piece 2, the adjusting flow channels 3 can be changed, and then the resistance of the glue passing through the adjusting flow channels 3 is changed, so, by controlling the ratio of the resistance of the glue passing through the two adjusting flow channels 3 in the glue dispensing head 1, the ratio of the glue amount extruded from the glue outlet 121 can be adjusted, that is, the ratio of the glue outlet speeds of the two glue outlets 121 is adjusted.
Therefore, after the structure is adopted, the ratio of the glue outlet speeds of the two glue outlets 121 can be adjusted, the glue dispensing precision is improved, the glue quantity difference on the surface of the workpiece 7 is reduced, the product quality formed by glue dispensing is further improved, the ratio of the glue outlet speeds of the two glue outlets 121 is adjustable, the structure can be suitable for different use requirements, the part with large glue quantity requirement is changed, the adjusting piece 2 is changed, the two adjusting flow channels 3 are different in glue passing resistance, the resistance is large, the corresponding glue outlet 121 is low in glue dispensing speed and used for the part with small glue dispensing quantity requirement, the corresponding glue outlet 121 is high in glue dispensing speed and used for the part with large glue dispensing quantity requirement, and therefore, the different glue dispensing requirements are met.
Specifically, the adjusting flow channel 3 includes a first flow channel 31 and a second flow channel 32 which are communicated, the first flow channel 31 is a direct flow channel, the extending direction of the first flow channel 31 is consistent with the extending direction of the central axis of the second flow channel 32, and the cross-sectional area of the first flow channel 31 is larger than that of the second flow channel 32; the adjusting piece 2 is used for adjusting at least one parameter of the length of the first flow channel 31, the length of the second flow channel 32 and the cross-sectional area of the second flow channel 32; in this embodiment, the adjusting member 2 is used to adjust the cross-sectional area parameter of the second flow passage 32.
As shown in fig. 4 and 5, in the present embodiment, the glue outlet channel 12 is divided into two parts, wherein one part is vertically communicated with the glue inlet channel 11, a fixing rod 26 spaced from the circumferential inner wall and coaxial with the inner wall of the part is fixed on the inner side of the part, and a plug seal 14 is fixed on the end part of the fixing rod 26 away from the glue inlet channel 11 so as to prevent glue from flowing out of the part of the glue outlet channel 12; and the other part of the glue outlet flow passage 12 extends downwards to form part of the inner cavity of the needle 6.
The adjusting piece 2 comprises an adjusting block which slides above the fixed rod 26 along the vertical direction, the adjusting block upwards seals the penetrating dispensing shell 5, the lower part of the adjusting block is enclosed with the fixed rod 26 and the inner wall of the horizontal part of the dispensing flow passage 12 to form an adjusting flow passage 3, the adjusting flow passage 3 extends along the horizontal direction and is divided into two parts, the first part is a first flow passage 31 communicated with the dispensing flow passage 11, the second part is a second flow passage 32 communicated between the first flow passage 31 and the inner cavity of the needle 6, and due to the existence of the fixed rod 26, part space of the horizontal part of the dispensing flow passage 12 is occupied, so that the cross section area of the first flow passage 31 is larger than the cross section area of the second flow passage 32, and therefore, when the glue stock passes through the dispensing flow passage 12, the resistance born by the first flow passage 31 is smaller than the resistance born by the second flow passage 32.
When the adjusting block moves downwards, the cross-sectional area of the second flow channel 32 is further reduced, so that the resistance of the second flow channel 32 to the flow of the sizing material is further increased, and when the adjusting block moves upwards, the cross-sectional area of the second flow channel 32 is increased, and the resistance of the second flow channel 32 to the flow of the sizing material can be reduced. Therefore, before the glue is dispensed, the positions of the two adjusting blocks can be adjusted first, if the glue dispensing speed of the glue outlet 121 corresponding to the adjusting blocks is too high, the adjusting blocks are moved downwards, and then the positions of the adjusting blocks are locked by the locking assembly 4, so that the cross section size of the second flow channel 32 is reduced, the resistance of the second flow channel 32 to the flowing of the glue is increased, and the glue dispensing speed of the glue outlet 121 is reduced; if the glue outlet 121 corresponding to the adjusting block has too slow glue outlet speed, the adjusting block is moved upwards, and then the locking component 4 is used to lock the position of the adjusting block, so that the cross section size of the second flow channel 32 is increased, the resistance of the second flow channel 32 to the glue flowing is slowed down, and the glue outlet 121 glue outlet speed is increased.
In order to fix the height position of the adjusting part 2 through the locking component 4, as shown in fig. 5, a sliding plate 23 is fixed above the adjusting part 2, a sliding rod 24 is fixed above the sliding plate 23, guide rods 25 are arranged at two ends of the sliding plate 23, the guide rods 25 penetrate through the sliding plate 23 in a sealing manner and are fixedly connected with the dispensing shell 5, the locking component 4 comprises a fixed block 42 fixed at the top ends of the two guide rods 25 and in sliding fit with the sliding rod 24, a locking bolt 41 is connected to the fixed block 42 in a threaded manner, a spring 22 is sleeved outside the guide rods 25, two ends of the spring 22 are respectively connected with the sliding plate 23 and the fixed block 42, and the spring 22 is a pressure spring.
After the structure is adopted, the pressure spring is utilized to apply downward pressure to the sliding plate 23, after the locking bolt 41 is unscrewed, the locking bolt 41 is separated from the sliding rod 24, the adjusting piece 2 moves downwards under the pressure of the spring 22, the cross-sectional area of the second flow channel 32 is reduced, so that the resistance to passing of sizing materials can be increased, if the resistance needs to be reduced, the sliding rod 24 moves upwards, then the locking bolt 41 is screwed again, the end part of the locking bolt 41 is abutted on the sliding rod 24, finally, the position of the sliding rod 24 is fixed, and the position of the adjusting piece 2 is locked, so that the cross-sectional size of the second flow channel 32 is fixed, and the upper and lower position offset of the adjusting piece 2 in the use process of the dispensing device is avoided, so that the glue outlet speed of the glue outlet 121 is influenced.
Second embodiment
As shown in fig. 6 and 7, the multi-needle dispensing device of the second embodiment is different from the first embodiment in that the regulating member 2 is used to regulate the length of the first flow path 31 and the length of the second flow path 32.
In the dispensing device, the glue outlet flow channel 12 is elongated, so that the cross section size of the adjusting flow channel 3 is smaller, usually in the level of square millimeter of a single digit, and correspondingly, the length size of the adjusting flow channel 3 is larger than the cross section size thereof, usually in the level of millimeter of two digits or even more than three digits, therefore, the length of the first flow channel 31 and the length of the second flow channel 32 are adjusted by using the adjusting piece 2, the adjusting precision of the glue flowing resistance of the adjusting flow channel 3 is improved, and the accurate adjustment of the glue outlet speed of the glue outlet 121 is realized.
Specifically, the adjusting member 2 includes an adjusting rod 21 extending in a direction parallel to the length direction of the first flow path 31 and extending into the inside of the glue outlet flow path 12, and the inner wall of the adjusting flow path 3 includes a circumferential outer edge of the adjusting rod 21; further specifically, the regulating member 2 includes a regulating rod 21 that penetrates through the flood seal 14 and extends into the horizontal portion of the glue flow path 12, that is, the radial position of the regulating rod 21 corresponds to the radial position of the fixing rod 26 in the first embodiment.
The further improvement is that the two ends of the adjusting rod 21 are respectively a first end 211 and a second end 212, the size of the first end 211 is smaller than that of the second end 212, the first end 211 is gradually transitionally arranged towards the second end 212, specifically, in the adjusting rod 21, the first end 211 is adjacent to the glue inlet flow channel 11, the second end 212 is adjacent to the vertical part of the glue outlet flow channel 12, the curved surface where the circumferential outer edge of the adjusting rod 21 is located is a conical surface, and the adjusting rod 21 is in threaded connection with the glue dispensing head 1.
Firstly, after adjusting the pole 21 and the first 1 threaded connection of point gum, through rotating the position of adjusting the pole 21, can change the axial position of adjusting the pole 21, compare in first embodiment adjusting part 2 slip setting and utilize locking component 4 locking position, adjust pole 21 and first 1 threaded connection of point gum, when realizing adjusting the sizing material and passing through resistance, the structure is simpler, and conditional operation is more convenient.
Secondly, the adjusting rod 21 adopts a conical structure, the horizontal part of the glue outlet flow channel 12 adopts a cylindrical structure, the inner walls of the horizontal part of the adjusting rod 21 and the glue outlet flow channel 12 are enclosed to form a second flow channel 32, and in the horizontal part of the glue outlet flow channel 12, a first flow channel 31 is formed at a part between the adjusting rod 21 and the glue inlet flow channel 11, therefore, after the axial position of the adjusting rod 21 is changed by rotating the adjusting rod 21, the length of the first flow channel 31 and the length of the second flow channel 32 are changed in opposite directions, specifically, when the part of the adjusting rod 21 extending into the glue outlet flow channel 12 is increased, namely, after the part of the adjusting rod 21 approaches the glue inlet flow channel 11, the length of the first flow channel 31 is reduced, the length of the second flow channel 32 is increased, so that the glue stock is increased through the resistance of the adjusting flow channel 3, and then the glue outlet speed of the adjusting flow channel 3 corresponding to the glue outlet 121 is reduced, and conversely, when the part of the adjusting rod 21 extending into the glue outlet flow channel 12 is reduced, namely, after the length of the adjusting rod 21 is far from the glue inlet flow channel 11, the length of the first flow channel 31 is increased, the length of the second flow channel 32 is reduced, so that the glue outlet speed is correspondingly increased.
Third embodiment
As shown in fig. 8-12, the multi-needle dispensing device of the third embodiment is based on the second embodiment, and is different in that four needles 6 are arranged in an annular array with the axis of the glue inlet channel 11 as the center line at equal intervals, and the lengths of two needles 6 are inconsistent with the lengths of the other two needles 6, that is, the bottom ends of two needles 6 are located on one horizontal plane, and the bottom ends of the other two needles 6 are located on the other horizontal plane.
The multi-needle dispensing device of this embodiment is a four-needle dispensing device, and is mainly used for dispensing a workpiece 7 with an uneven top surface, as shown in the figure, the top surface of the workpiece 7 is stepped, so that in the dispensing device, two lower glue outlets 121 correspond to the lower position of the top surface of the workpiece 7, the other two glue outlets 121 correspond to the higher position of the top surface, so that the overall lengths of four glue outlet channels 12 are inconsistent, an adjusting rod 21 in an adjusting piece 2 extends along the vertical direction, the bottom extends into the vertical part of the glue outlet channel 12, the adjusting piece 2 and the inner wall of the glue outlet channel 12 enclose an adjusting channel 3 formed by the inner walls of the adjusting rod 21 and the vertical part of the glue outlet channel 12, a second channel 32 is formed by enclosing the inner walls of the adjusting rod 21 and the glue outlet channel 12, and is adjacent to the glue inlet channel 11, and a first channel 31 is communicated between the needle 6 and the second channel 32.
After the structure is adopted, the adjusting piece 2 is rotated, so that the adjusting rod 21 moves upwards or downwards, when the adjusting rod 21 moves upwards, the length of the first flow channel 31 is increased, the length of the second flow channel 32 is reduced, the resistance of sizing materials passing through the adjusting flow channel 3 is reduced, and the sizing speed of the sizing outlet 121 corresponding to the adjusting flow channel 3 is increased; correspondingly, when the adjusting rod 21 moves downwards, the length of the first flow channel 31 is reduced, and the length of the second flow channel 32 is increased, so that the resistance of the sizing material passing through the adjusting flow channel 3 is increased, and the sizing speed of the sizing outlet 121 corresponding to the adjusting flow channel 3 is reduced; therefore, the adjusting function of the glue outlet speed of the multi-needle glue dispensing device is realized.
Four sealing plugs 15 are arranged on the periphery of the dispensing shell 5, and the four sealing plugs 15 are in one-to-one correspondence with the four needle heads 6 and are used for sealing the end parts of the horizontal parts of the dispensing flow channels 12 to prevent glue leakage.
Fourth embodiment
As shown in fig. 13 to 15, the multi-needle dispensing device of the fourth embodiment is based on the second embodiment, and is different in that the adjusting rod 21 is cylindrical, and the coaxial line is disposed inside the horizontal portion of the dispensing flow channel 12.
Compared with the adjusting rod 21 of the second embodiment adopting a conical structure, after the adjusting rod 21 of the present embodiment adopts a cylindrical structure, the cross section size of the second flow channel 32 formed by enclosing the horizontal part of the adjusting rod 21 and the glue outlet flow channel 12 is fixed, and the cross section area shape of the second flow channel 32 is kept unchanged all the time in the process of rotating the adjusting rod 21, so that the precise control of the resistance of the adjusting flow channel 3 to the passing of glue stock is facilitated, and the precise adjustment of the glue outlet speed of the glue outlet 121 is realized.
Fifth embodiment
As shown in fig. 16-19, the multi-needle dispensing device of the fifth embodiment is based on the fourth embodiment, and is different in that the adjusting rod 21 is in clearance fit with the inner wall of the glue outlet flow channel 12, closed-loop diversion trenches 213 distributed along the axial direction of the adjusting rod 21 are densely distributed at the circumferential outer edge of the adjusting rod 21, the diversion trenches 213 are mutually communicated to form a diversion channel, the part of the diversion channel located in the glue outlet flow channel 12 forms a second flow channel 32, and the end part of the adjusting rod 21 is provided with a diversion port 214 communicated with the diversion trench 213.
Specifically, the outer diameter of the adjusting rod 21 is consistent with the inner diameter of the horizontal part of the glue outlet flow channel 12, so that the circumferential outer edge of the adjusting rod 21 is in sealing connection with the circumferential inner wall of the horizontal part of the glue outlet flow channel 12, a plurality of guide grooves 213 are densely distributed on the adjusting rod 21, gaps are formed in the side walls of the guide grooves 213, two adjacent guide grooves 213 are communicated with each other, a guide opening 214 is formed in the part of the adjusting rod 21 extending into the glue outlet flow channel 12, so that glue material can enter the guide grooves 213 through the guide opening 214 after entering the first flow channel 31 from the glue inlet flow channel 11, then flows downwards from the top end of the vertical part of the glue outlet flow channel 12 after sequentially passing through the guide grooves 213, and finally is discharged from the glue outlet 121 through the needle 6.
Compared with the fourth embodiment, in this embodiment, the number of the diversion trenches 213 located at the horizontal portion of the glue outlet flow channel 12 can be controlled by rotating the adjusting rod 21, so as to change the length of the second flow channel 32, when glue passes through the second flow channel 32, the glue firstly rotates around the adjusting rod 21 circumferentially and then enters the next diversion trench 213, thus greatly prolonging the adjustable range of the second flow channel 32, expanding the adjusting range of the glue outlet speed of the glue outlet 121, and ensuring the stable rotation of the adjusting rod 21 due to the sealing connection of the adjusting rod 21 and the horizontal portion of the glue outlet flow channel 12, and avoiding the pressed bending deformation of the adjusting rod 21.
Sixth embodiment
As shown in fig. 20 and 21, the multi-needle dispensing device of the sixth embodiment is based on the fifth embodiment, and is different in that a spiral guide groove 213 is provided at the circumferential outer edge of the adjusting rod 21, the guide groove 213 extends to one end of the adjusting rod 21 extending into the glue outlet flow channel 12, and a portion of the guide groove 213 located in the glue outlet flow channel 12 forms the second flow channel 32.
After the structure is adopted, the first flow channel 31 is positioned at one side of the adjusting rod 21 adjacent to the glue inlet flow channel 11, the second flow channel 32 is formed by encircling the circumferential outer edge of the adjusting rod 21 and the inner wall of the horizontal part of the glue outlet flow channel 12, the adjusting rod 21 is rotated, the length of the adjusting rod 21 in the horizontal part of the glue outlet flow channel 12 can be controlled, and then the length of the spiral flow guide groove 213 in the horizontal part of the glue outlet flow channel 12 is controlled, so that the length of the second flow channel 32 is changed.
It should be noted that, in the present invention, the needles 6 in the multi-needle dispensing device are not limited to two or four, and the needles 6 may be three or more according to different dispensing requirements. After the multi-needle dispensing device is used, the dispensing speed of each needle 6 can be accurately controlled, and the dispensing speed of the needle 6 can be correspondingly regulated according to specific glue amount requirements of different positions of the workpiece 7 so as to meet different use requirements.
Seventh embodiment
As shown in fig. 22 and 23, the multi-needle dispensing device of the seventh embodiment is based on the fifth embodiment, except that the regulating member 2 is used to regulate the cross-sectional area of the first flow path 31 at a part position and the cross-sectional area of the second flow path 32.
Specifically, the dispensing head 1 comprises a dispensing head body 16 with a T-shaped structure, a needle head 6 is fixedly connected to the lower side of the dispensing head body 16, a glue inlet flow channel 11 is arranged at the upper end of the dispensing head body 16, a through hole communicated with the bottom end of the glue inlet flow channel 11 is further formed in the dispensing head body 16, the axial lead of the through hole is perpendicular to the axial lead of the glue inlet flow channel 11, the end part of the through hole is of a stepped structure and is fixedly provided with an assembly pipe 17 coaxial with the through hole, the pipe cavity of the assembly pipe 17 is communicated with the inner cavity of the needle head 6, and a convex ring 171 fixedly connected with the inner wall coaxial with the assembly pipe 17 is integrally connected with one end of the assembly pipe 17 adjacent to the glue inlet flow channel 11. The dispensing head 1 preferably adopts a split type assembling structure of the dispensing head body 16 and the assembling pipe 17, and when the dispensing head 1 is manufactured, the dispensing head body 16 and the assembling pipe 17 with the convex ring 171 at the end part are respectively and independently produced, and then the dispensing head body 16 and the assembling pipe 17 are spliced and fixedly connected.
The adjusting member 2 includes an adjusting rod 21 extending along a length direction parallel to the through hole and penetrating through an inner side of the convex ring 171, two ends of the adjusting rod 21 are respectively a first end 211 and a second end 212, a size of the first end 211 is smaller than that of the second end 212, the first end 211 is gradually transitionally arranged towards the second end 212, specifically, in the adjusting rod 21, the first end 211 is adjacent to the glue inlet flow channel 11, the second end 212 is adjacent to a vertical portion of the glue outlet flow channel 12, the adjusting rod 21 is a conical rod, and the convex ring 171 is located between the first end 211 and the second end 212. One end of the adjusting piece 2 far away from the glue inlet flow channel 11 is in threaded connection with the glue dispensing head 1.
After the structure is adopted, the through hole is positioned at one side part of the feeding flow channel 11, the gap between the convex ring 171 and the adjusting rod 21, the inner cavity of the assembling pipe 17 and the inner cavity of the needle 6 to form the glue flow channel 12, more specifically, the inner wall of the through hole and the part of the adjusting rod 21, which is positioned at the convex ring 171 and is close to the glue feeding flow channel 11, enclose to form a first flow channel 31, the gap part between the adjusting rod 21 and the convex ring 171 forms a second flow channel 32, and the first flow channel 31 and the second flow channel 32 are mutually communicated to form the adjusting flow channel 3.
After the adjusting piece 2 is rotated, the axial position of the adjusting rod 21 can be changed, because the adjusting rod 21 is a conical rod, after the adjusting rod 21 moves, the position of the adjusting rod corresponding to the convex ring 171 is changed, the depth of the adjusting rod is changed in the through hole, so that the cross section area of the second flow channel 32 is changed, and meanwhile, the cross section area of the part, close to the convex ring 171, of the first flow channel 31 is correspondingly changed, namely, the cross section area of the part, close to the convex ring 171, of the first flow channel 31 and the cross section area of the second flow channel 32 can be changed through controlling the position of the adjusting piece 2, and then the speed of the alternating current passing through the glue outlet flow channel 12 is changed, so that the glue outlet speed adjustment of the positions of the glue outlet 121 of all the needle heads 6 is realized.
For example, when the adjusting rod 21 is close to the glue inlet channel 11, the portion of the adjusting rod 21 extending into the through hole, that is, the portion passing through the convex ring 171 increases, resulting in a decrease in the cross section of the portion of the first channel 31 near the convex ring 171, and an increase in the outer diameter of the portion of the adjusting rod 21 located inside the convex ring 171, resulting in a decrease in the gap size between the convex ring 171 and the adjusting rod 21, that is, the cross section of the second channel 32, and therefore, the cross sections of the first channel 31 and the second channel 32 are both decreased, increasing the resistance of glue passing, and decreasing the glue outlet speed from the glue outlet 121 of the corresponding needle 6.
Eighth embodiment
As shown in fig. 24 to 27, the multi-needle dispensing device of the eighth embodiment is based on the sixth embodiment, and is different in that a scale mark 8 is provided between the adjusting lever 21 and the dispensing head 1, and the scale mark 8 is used for indicating the length of the second flow channel 32; the dispensing head 1 comprises a dispensing head body 16 and a needle head 6 detachably connected with the dispensing head body 16, and the dispensing runner 12 comprises an inner cavity of the needle head 6.
Based on the above difference, through the scale mark 8, a user can clearly determine the insertion depth of the adjusting rod 21 relative to the dispensing head body 16, further determine the length of the second flow channel 36, and conveniently adjust the outflow speed of the glue from the two glue outlet flow channels 12; in addition, the dispensing head 1 adopts a split structure in which the dispensing head body 16 and the needle 6 are detachably connected, and the needle 6 is convenient to replace and maintain, so that the long-term stable use of the dispensing device is ensured.
Specifically, in the invention, the dispensing head 1 mainly comprises a dispensing head body 16, a dispensing seat 19 arranged above the dispensing head body 16, and two needle heads 6 arranged below the dispensing head body 16, wherein a dispensing runner 11 is arranged on the dispensing seat 19 along the vertical direction, and two ends of the dispensing runner extend to the top end and the bottom end of the dispensing seat 19 respectively; the dispensing head 1 is provided with a second through hole 162 extending along the length direction of the dispensing head and a first through hole 161 extending along the height direction of the dispensing head, the first through hole 161 is communicated with the middle part of the second through hole 162, and the top of the first through hole 161 is communicated with a glue inlet flow channel on the glue inlet seat 19; the both ends of some gum head body 16 all have sealing connection in proper order and have pan stopper to seal 14 and sealing plug 15, both inboard has run through regulating part 2, regulating part 2 is including stretching into the inboard regulation pole 21 of second through-hole 162, the circumference outward flange of regulation pole 21 is provided with heliciform guiding gutter 213, the circumference outer fringe of regulation pole 21 and the circumference inner wall sealing connection of second through-hole 162 for the inner wall of guiding gutter 213 encloses with the inner wall of second through-hole 162 and closes and form second runner 32, the one end fixedly connected with of the runner 11 is kept away from to the regulating part revolves the cover 27, the axial of revolve the cover 27 is unanimous with the axial of second through-hole 162, revolve the cover 27 seal cover locates the one end of some gum head body 16.
The scale marks 8 comprise first scale marks 81 and second scale marks 82, specifically, the first scale marks 81 are annularly distributed on the circumferential outer edge of one end of the spin sleeve 27 adjacent to the dispensing head body 16, the first scale marks 81 are uniformly distributed along the circumferential direction of the spin sleeve 27 at equal intervals, the second scale marks 82 are axially distributed along the adjusting rod 21 at equal intervals, and the second scale marks 82 are annular scale marks and are arranged on the end of the dispensing head body 16 adjacent to the spin sleeve 27.
The second graduation line 82 is used for indicating the rotation cycle number of the turncap 27 and the adjusting rod 21, that is, the quotient obtained by dividing the rotation angle of the turncap 27 and the adjusting rod 21 by 360 is an integer (it is to be noted that the extending track of the diversion trench 213 on the adjusting rod 21 is equidistant spiral), and correspondingly, the first graduation line 81 is used for indicating the remainder obtained by dividing the rotation angle of the turncap 27 and the adjusting rod 21 by 360 degrees, so that the first graduation line 81 and the second graduation line 82 are combined with each other, the depth of the adjusting rod 21 inserted into the second through hole 162 can be conveniently determined by a user, and the length of the second flow channel 32 formed by the enclosing of the adjusting rod 21 and the inner wall of the second through hole 162 can be further determined.
For the convenience of accurately identifying the indication position of the first scale mark 81, in this embodiment, the rotary sleeve 27 includes a conical sleeve disposed at the end of the rotary sleeve and sealed and arranged outside the end of the dispensing head body 16, the outer diameter of one end of the conical sleeve adjacent to the glue inlet runner 11 is smaller than that of the other end, the first scale mark 81 is disposed at the circumferential outer edge of the conical sleeve, so that the positions of the first scale mark 81 and the second scale mark 82 of the dispensing head body 16 are adjacent, the position indicated by the first scale mark 81 is accurately identified by a user conveniently, and the second scale mark 82 is matched, so that the effect of precisely confirming the length of the second runner 32 is achieved, and the precision adjustment of the glue discharge speed of the glue outlet 121 is realized.
When the length of the second flow channel 32 is adjusted, the rotating sleeve 27 is controlled to rotate, so that the adjusting piece 2 can be driven to rotate, the depth of the adjusting rod 21 inserted into the second through hole 162 is changed, the depth of the guide groove 213 on the adjusting rod 21 positioned in the second through hole 162 is changed, namely the length of the second flow channel 32 is changed, and the speed of the glue stock discharged from the needle 6 is adjusted.
The needle head 6 comprises a needle tube 61, a needle seat 62, a connecting seat 63 and a needle sleeve 64, wherein the needle tube 61, the needle seat 62 and the connecting seat 63 are sequentially connected with each other along the coaxial line and are provided with glue outlet through holes which are consistent with the own axial line so as to form a glue outlet flow channel 12; one end of the connecting seat 63 is in threaded connection with the dispensing head body 16, the other end of the connecting seat 63 is in threaded connection with the needle sleeve 64, and elastic sealing rings 19 are arranged between the connecting seat 63 and the dispensing head body 16 and between the glue inlet seat 18 and the dispensing head body 16 so as to ensure sealing performance; needle tube 61 is connected with needle holder 62 an organic whole, and needle holder 62 seal cover locates the one end of connecting seat 63 far away from some glued head body 16, and needle holder 62 presss from both sides and locates between connecting seat 63 and needle tube 61, and needle tube 61 passes through needle cover 64. After adopting above-mentioned structure for syringe needle 6 is formed by a plurality of spare parts detachable connection, and through the mode with the gluey head body 16 threaded connection of point, make things convenient for a plurality of spare parts dismantlement of syringe needle 6, in order to maintain or change, thereby guarantee the stability and the reliability that this many syringe needles adhesive deposite device used for a long time.
The invention also discloses a glue outlet speed adjusting method of the multi-needle point glue dispensing device, as shown in fig. 28, comprising the following steps:
s10, obtaining the ratio of dispensing quantity ranges required by the positions to be dispensed on the surface of the workpiece to be dispensed;
s20, acquiring the ratio of the glue outlet speeds of the glue outlets 121 after the glue inlet 111 enters the glue in the multi-needle glue dispensing device;
s30, judging whether the ratio of the glue outlet speeds obtained in the step S20 falls within the ratio of the glue dispensing amount ranges obtained in the step S10, and ending the adjustment operation if the ratio of the glue outlet speeds falls within the ratio of the glue dispensing amount ranges;
s40, adjusting the positions of the adjusting parts 2 at all positions in the multi-needle dispensing device to adjust the resistance before the glue passes through the glue outlet 121, so as to adjust the glue outlet speed ratio of each glue outlet 121 after the glue inlet 111 enters the glue, and then executing the step S20;
the adjusting member 2 is used in step S40 to adjust the length of the stock flow path and/or the cross-sectional area of the stock flow path at the feed side of the outlet 121.
According to the method for adjusting the glue outlet speed, before glue is discharged from the glue outlet 121, the length of a circulation path and/or the cross-sectional area of the circulation path formed by flowing in the glue dispensing head 1 can be changed, so that the resistance born by the glue during flowing can be changed, and the glue outlet speed at the glue outlet 121 can be further adjusted, the accurate adjustment of the glue outlet speed of a glue dispensing device can be realized, and different glue dispensing use requirements can be met.
In step S20 of the present invention, when the glue outlet speed of each glue outlet 121 of the multi-needle glue dispensing device is obtained, a detection plate with the same and consistent quality is usually placed under each glue outlet 121, glue is input into the glue inlet 111, such that the glue falls onto the detection plate from the glue outlet 121, after a period of glue is dispensed, the input of glue is stopped, then the detection plate filled with glue is weighed, and the obtained quality is subtracted from the quality of the detection plate, such that the glue dispensing amount of each glue outlet 121 at the same time can be determined, and the ratio of the glue dispensing speeds of each glue outlet 121 can be determined.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (11)
1. The utility model provides a many needles point gum device, is including interior glue dispensing head (1) of establishing into runner (11) and two at least play runner (12), go out one of them one end of runner (12) with advance runner (11) intercommunication, the other end downwardly extending extremely the surface that glues head (1) forms out of glue mouth (121), it keeps away from to advance runner (11) one end that goes out runner (12) extends to the surface that glues head (1) forms into glue mouth (111), its characterized in that:
The glue dispensing head (1) is movably connected with adjusting parts (2) corresponding to the glue outlet flow channels (12) one by one, the adjusting parts (2) and the inner walls of the corresponding glue outlet flow channels (12) are enclosed to form adjusting flow channels (3), and the adjusting parts (2) moving on the glue dispensing head (1) are used for adjusting the resistance of glue stock passing through the adjusting flow channels (3) so as to adjust the speed of the glue stock passing through the glue outlet ports (121).
2. The multi-needle dispensing device of claim 1, wherein: the regulating flow passage (3) comprises a first flow passage (31) and a second flow passage (32) which are communicated, the extending direction of the first flow passage (31) is consistent with the extending direction of a central shaft of the second flow passage (32), and the cross section area of the first flow passage (31) is larger than that of the second flow passage (32); the adjusting piece (2) is used for adjusting at least one parameter of the length of the first flow channel (31), the length of the second flow channel (32) and the cross-sectional area of the second flow channel (32).
3. The multi-needle dispensing device of claim 2, wherein: the adjusting piece (2) is arranged on the dispensing head (1) in a sliding mode along the length direction perpendicular to the adjusting flow channel (3) so as to adjust the cross section area of the second flow channel (32), the adjusting piece (2) is connected with a locking assembly (4), and the locking assembly (4) is used for locking the adjusting piece (2) on the dispensing head (1).
4. A multi-needle dispensing device as defined in claim 2 or 3, wherein: the adjusting piece (2) comprises an adjusting rod (21) which extends along the length direction parallel to the first flow channel (31) and stretches into the inner side of the glue outlet flow channel (12), and the inner wall of the adjusting flow channel (3) comprises the circumferential outer edge of the adjusting rod (21); the adjusting member (2) is used for adjusting the length of the first flow channel (31) and the length of the second flow channel (32).
5. The multi-needle dispensing device of claim 4, wherein: the two ends of the adjusting rod (21) are respectively provided with a first end (211) and a second end (212), the size of the first end (211) is smaller than that of the second end (212), and the first end (211) is gradually transitionally arranged towards the second end (212).
6. The multi-needle dispensing device of claim 4, wherein: the adjusting rod (21) is in clearance fit with the inner wall of the glue outlet flow channel (12), closed-loop diversion trenches (213) distributed along the axial direction of the adjusting rod (21) are densely distributed at the peripheral outer edge of the adjusting rod, the diversion trenches (213) are mutually communicated to form a diversion channel, the part of the diversion channel in the glue outlet flow channel (12) forms a second flow channel (32), and a diversion opening (214) communicated with the diversion trenches (213) is formed at the end part of the adjusting rod (21).
7. The multi-needle dispensing device of claim 4, wherein: the adjusting rod (21) is in clearance fit with the inner wall of the glue outlet flow channel (12); the periphery of the adjusting rod (21) is provided with a spiral guide groove (213), the guide groove (213) extends to one end of the adjusting rod (21) extending into the glue outlet flow passage (12), and the part of the guide groove (213) located in the glue outlet flow passage (12) forms the second flow passage (32).
8. The multi-needle dispensing device of claim 4, wherein: a scale mark (8) is arranged between the adjusting rod (21) and the dispensing head (1), and the scale mark (8) is used for indicating the length of the second flow channel (32).
9. The multi-needle dispensing device of claim 1, wherein: the dispensing head (1) comprises a dispensing head body (16) and a needle head (6) detachably connected with the dispensing head body (16), and the dispensing runner (12) comprises an inner cavity of the needle head (6).
10. The method for adjusting the glue outlet speed of the multi-needle point glue dispensing device is characterized by comprising the following steps of:
s10, obtaining the ratio of dispensing quantity ranges required by the positions to be dispensed on the surface of the workpiece to be dispensed;
S20, obtaining the ratio of the glue outlet speeds of the glue outlets (121) after the glue inlet (111) enters the glue in the multi-needle glue dispensing device according to any one of claims 1 to 9;
s30, judging whether the ratio of the glue outlet speeds obtained in the step S20 falls within the ratio of the glue dispensing amount ranges obtained in the step S10, and ending the adjustment operation if the ratio of the glue outlet speeds falls within the ratio of the glue dispensing amount ranges;
s40, adjusting the positions of adjusting parts (2) at all positions in the multi-needle dispensing device to adjust the resistance before the glue passes through the glue outlet (121), so as to adjust the glue outlet speed ratio of each glue outlet (121) after the glue inlet (111) enters the glue, and then executing step S20.
11. The method for adjusting the dispensing speed of a multi-needle dispensing device of claim 10, wherein: the adjusting piece (2) in the step S40 is used for adjusting the length of the sizing material flow path and/or the cross-sectional area of the sizing material flow path at the feeding side of the sizing outlet (121).
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| CN202311397080.4A CN117139064B (en) | 2023-10-26 | 2023-10-26 | Multi-needle dispensing device and method for adjusting dispensing speed of multi-needle dispensing device |
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030173429A1 (en) * | 2002-03-12 | 2003-09-18 | Wolfgang Puffe | Rotary application head |
| CN101663103A (en) * | 2007-04-10 | 2010-03-03 | 武藏工业株式会社 | Method and device for discharging viscous liquid material |
| CN102441511A (en) * | 2011-10-28 | 2012-05-09 | 深圳翠涛自动化设备股份有限公司 | Positive displacement quantitative dispensing system for LED packaging, apparatus and method thereof |
| CN203092944U (en) * | 2012-12-12 | 2013-07-31 | 宁波无边橡塑有限公司 | Flow-regulating-type cold runner plate |
| CN203737505U (en) * | 2014-02-25 | 2014-07-30 | 冼平东 | Multi-needle dispensing valve body and multi-needle dispensing device |
| CN104959280A (en) * | 2015-07-12 | 2015-10-07 | 赵毅敏 | Multi-needle dispensing valve |
| CN205572888U (en) * | 2016-03-17 | 2016-09-14 | 东莞市晟起精密模具配件有限公司 | Circulated nature solution combination die goes out to glue balanced heat and chews structure |
| CN206083019U (en) * | 2016-10-19 | 2017-04-12 | 深圳市欧力克斯科技有限公司 | Dispensing valve with adjustable go out volume of gluing |
| CN206083035U (en) * | 2016-10-19 | 2017-04-12 | 深圳市欧力克斯科技有限公司 | Shunt with adjustable be used for point gum machine |
| TW201733684A (en) * | 2016-03-30 | 2017-10-01 | 亞克先進科技股份有限公司 | Dispensing device |
| CN209158769U (en) * | 2018-09-20 | 2019-07-26 | 惠州市华阳光电技术有限公司 | A kind of liquid state colloid guiding device |
| CN214975381U (en) * | 2020-09-30 | 2021-12-03 | 深圳市品速科技有限公司 | Device for quantitatively discharging glue |
| CN217094183U (en) * | 2022-03-18 | 2022-08-02 | 湖南新视电子技术有限公司 | Multi-needle-head glue dispensing device and glue dispensing machine |
| CN217615685U (en) * | 2021-12-31 | 2022-10-21 | 杭州迈伺特科技有限公司 | Glue bull adhesive deposite device |
| CN217699885U (en) * | 2022-04-18 | 2022-11-01 | 青岛安捷能源科技有限公司 | Multi-station dispensing valve and dispensing machine |
| CN219273549U (en) * | 2023-03-27 | 2023-06-30 | 天津市依依卫生用品股份有限公司 | Scraping device |
| CN219377750U (en) * | 2023-02-28 | 2023-07-21 | 浙江美硕电气科技股份有限公司 | Rubber valve mechanism with rubber amount adjustment function |
| CN219765847U (en) * | 2023-03-02 | 2023-09-29 | 绵阳市蝴蝶信息技术有限公司 | Electric dispenser |
-
2023
- 2023-10-26 CN CN202311397080.4A patent/CN117139064B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030173429A1 (en) * | 2002-03-12 | 2003-09-18 | Wolfgang Puffe | Rotary application head |
| CN101663103A (en) * | 2007-04-10 | 2010-03-03 | 武藏工业株式会社 | Method and device for discharging viscous liquid material |
| CN102441511A (en) * | 2011-10-28 | 2012-05-09 | 深圳翠涛自动化设备股份有限公司 | Positive displacement quantitative dispensing system for LED packaging, apparatus and method thereof |
| CN203092944U (en) * | 2012-12-12 | 2013-07-31 | 宁波无边橡塑有限公司 | Flow-regulating-type cold runner plate |
| CN203737505U (en) * | 2014-02-25 | 2014-07-30 | 冼平东 | Multi-needle dispensing valve body and multi-needle dispensing device |
| CN104959280A (en) * | 2015-07-12 | 2015-10-07 | 赵毅敏 | Multi-needle dispensing valve |
| CN205572888U (en) * | 2016-03-17 | 2016-09-14 | 东莞市晟起精密模具配件有限公司 | Circulated nature solution combination die goes out to glue balanced heat and chews structure |
| TW201733684A (en) * | 2016-03-30 | 2017-10-01 | 亞克先進科技股份有限公司 | Dispensing device |
| CN206083035U (en) * | 2016-10-19 | 2017-04-12 | 深圳市欧力克斯科技有限公司 | Shunt with adjustable be used for point gum machine |
| CN206083019U (en) * | 2016-10-19 | 2017-04-12 | 深圳市欧力克斯科技有限公司 | Dispensing valve with adjustable go out volume of gluing |
| CN209158769U (en) * | 2018-09-20 | 2019-07-26 | 惠州市华阳光电技术有限公司 | A kind of liquid state colloid guiding device |
| CN214975381U (en) * | 2020-09-30 | 2021-12-03 | 深圳市品速科技有限公司 | Device for quantitatively discharging glue |
| CN217615685U (en) * | 2021-12-31 | 2022-10-21 | 杭州迈伺特科技有限公司 | Glue bull adhesive deposite device |
| CN217094183U (en) * | 2022-03-18 | 2022-08-02 | 湖南新视电子技术有限公司 | Multi-needle-head glue dispensing device and glue dispensing machine |
| CN217699885U (en) * | 2022-04-18 | 2022-11-01 | 青岛安捷能源科技有限公司 | Multi-station dispensing valve and dispensing machine |
| CN219377750U (en) * | 2023-02-28 | 2023-07-21 | 浙江美硕电气科技股份有限公司 | Rubber valve mechanism with rubber amount adjustment function |
| CN219765847U (en) * | 2023-03-02 | 2023-09-29 | 绵阳市蝴蝶信息技术有限公司 | Electric dispenser |
| CN219273549U (en) * | 2023-03-27 | 2023-06-30 | 天津市依依卫生用品股份有限公司 | Scraping device |
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| CN117139064B (en) | 2024-02-06 |
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