CN215781691U - Conductive adhesive is cylinder fixing device for planet deaeration - Google Patents
Conductive adhesive is cylinder fixing device for planet deaeration Download PDFInfo
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- CN215781691U CN215781691U CN202122346193.4U CN202122346193U CN215781691U CN 215781691 U CN215781691 U CN 215781691U CN 202122346193 U CN202122346193 U CN 202122346193U CN 215781691 U CN215781691 U CN 215781691U
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Abstract
The utility model discloses a needle cylinder fixing device for conductive adhesive planetary defoaming, which comprises a base and a needle cylinder mounting mechanism arranged on the base, wherein the needle cylinder mounting mechanism is used for limiting and mounting a plurality of needle cylinders; the needle cylinder mounting mechanism comprises a needle cylinder limiting mounting part and a limiting convex part, the needle cylinder limiting mounting part comprises a mounting cylinder seat and a plurality of mounting positions, the mounting cylinder seat is mounted in the base, and the mounting positions are arranged in the mounting cylinder seat; the limiting protruding part is arranged at the bottom of the needle cylinder limiting installation part and used for fixing the needle cylinder in the installation position, and when the installation cylinder seat is installed on the base, the limiting protruding part and the bottom of the needle cylinder are both installed in the base. The utility model limits the needle cylinder by arranging the needle cylinder limiting installation part, fixes the needle cylinder by the limiting bulge part, realizes stable limiting and fixing of a plurality of needle cylinders by the needle cylinder installation mechanism which is arranged in the base in a matching way, prevents the needle cylinder from shifting or rotating in the centrifugal defoaming process, and improves the defoaming effect and efficiency.
Description
Technical Field
The utility model relates to the technical field of a paster process, in particular to a needle cylinder fixing device for conductive adhesive planet defoaming.
Background
In the electronics industry, conductive adhesives have become an essential bonding material. The chip mounting process is a critical step in the packaging of the IC chip, i.e., the chip is fixed on the base or frame of the tube shell in a manner of pasting after dispensing, wherein the amount of glue discharged during dispensing and the stability thereof have an important influence on the bonding strength and reliability of the chip.
Generally, the conductive adhesive is dispensed into a syringe and then dispensed for use, but when the conductive adhesive is dispensed into a dispensing syringe, air is easily introduced into the adhesive to form bubbles, and the bubbles in the adhesive cause the conductive adhesive to be incapable of being continuously and stably supplied, so that dispensing deterioration occurs, and therefore the conductive adhesive needs to be defoamed.
In the prior art, a centrifugal method is often used to perform planetary defoaming on conductive adhesive, and in the prior art, for example, patent No. CN 109663389 a discloses an inverted defoaming device for conductive adhesive and a using method thereof, bubbles in the conductive adhesive are separated from a tip by adopting a defoaming method in which the tip of a needle tube faces upward, and air above the needle tube is discharged by pushing a piston after defoaming. But this utility model can only carry out single cylinder deaeration at every turn, and is inefficient, is not suitable for the producer who needs to carry out a large amount of cylinder deaeration.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a needle cylinder fixing device for conductive adhesive planet defoaming and a using method thereof, and aims to solve the technical problem that in the prior art, only a single needle cylinder is defoamed each time, so that the defoaming efficiency is low.
In order to solve the technical problems, the utility model specifically provides the following technical scheme:
a needle cylinder fixing device for conductive adhesive planetary defoaming comprises a base and a needle cylinder mounting mechanism arranged on the base, wherein the needle cylinder mounting mechanism is used for limiting and mounting a plurality of needle cylinders;
the needle cylinder mounting mechanism comprises a needle cylinder limiting mounting part and a limiting convex part, the needle cylinder limiting mounting part comprises a mounting cylinder seat and a plurality of mounting positions, the mounting cylinder seat is mounted in the base, and the mounting positions are arranged in the mounting cylinder seat;
the limiting protruding part is arranged at the bottom of the limiting installation part of the needle cylinder, the limiting protruding part is used for fixing the needle cylinder in the installation position, the installation cylinder seat is installed on the base, and the limiting protruding part and the bottom of the needle cylinder are both installed in the base.
As a preferable scheme of the present invention, the mounting position is arranged inside the mounting cylinder base along a long axis direction of the mounting cylinder base, and a long axis of the mounting position is parallel to a long axis of the mounting cylinder base;
the needle cylinder mounting device comprises a needle cylinder, a mounting position, a connecting piece and a connecting piece, wherein the mounting position is provided with five parts, the five parts comprise a middle main mounting position and four auxiliary mounting positions which are uniformly arranged on the outer peripheral side of the main mounting position at intervals, and the needle cylinder is mounted in each mounting position in a one-to-one correspondence manner.
As a preferable aspect of the present invention, the limiting protrusion is disposed at the bottom of the main mounting location, extends and protrudes outward from the bottom surface of the main mounting location, and is configured to fix the needle cylinder in the main mounting location, and is simultaneously configured to limit the needle cylinder in the four sub mounting locations on the outer peripheral side.
As a preferable scheme of the present invention, the limit protrusion includes a syringe limiting ring and two syringe limiting pins, the syringe limiting ring is connected to the bottom of the main mounting location, the syringe limiting pin is connected to the bottom end of the syringe limiting ring, and the two syringe limiting pins are symmetrically arranged on two sides of the bottom of the syringe limiting ring,
the needle cylinder limiting pin is used for fixing the needle cylinder in the main installation position, the needle cylinder limiting ring extends to protrude towards the outside of the main installation position, a height difference is formed between the needle cylinder in the main installation position and the needle cylinders in the four auxiliary installation positions, and the horizontal plane where the bottom of the needle cylinder in the main installation position is lower than the horizontal planes where the bottoms of the needle cylinders in the four auxiliary installation positions on the outer peripheral side are located.
As a preferred scheme of the utility model, the base comprises a base body, wherein a connecting groove is arranged on the base body, a limiting groove is coaxially arranged on the inner groove surface of the connecting groove, the connecting groove is used for connecting the mounting cylinder seat, and the limiting groove is used for mounting the limiting bulge and the middle cylinder;
wherein the bottom of the outer side wall of the mounting cylinder seat is provided with an external thread, the bottom of the inner wall of the connecting groove is provided with an internal thread which is matched and connected with the external thread, the mounting cylinder seat is in threaded connection with the connecting groove,
a gap is formed between the upper surface of the limiting groove and the lower surface of the mounting cylinder seat, the height of the gap is smaller than the height of the piston of the cylinder, which is exposed out of the cylinder, and the groove depth of the limiting groove is the height difference.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model limits the needle cylinder by arranging the needle cylinder limiting installation part, fixes the needle cylinder by the limiting bulge part, realizes stable limiting and fixing of a plurality of needle cylinders by the needle cylinder installation mechanism which is arranged in the base in a matching way, prevents the needle cylinder from shifting or rotating in the centrifugal defoaming process, and improves the defoaming effect and efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic view illustrating the installation and distribution of a plurality of syringes in a mounting seat according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the apparatus according to the embodiment of the present invention;
FIG. 3 is a schematic structural view of a syringe according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a portion of a mounting socket provided in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a clamping portion according to an embodiment of the present invention;
FIG. 6 is a schematic view of a mounting position of the syringe mounting mechanism on a centrifuge according to an embodiment of the present invention;
fig. 7 is a schematic view of a connection structure of a limiting protrusion according to an embodiment of the present invention;
FIG. 8 is a flow chart of a method of using a fastening device according to an embodiment of the present invention;
the reference numerals in the drawings denote the following, respectively:
1-syringe mounting mechanism; 2-a base; 3-a needle cylinder; 4-limiting and fixing the ring; 5-limiting ring buckle;
11-syringe limit mounting part; 12-a limit boss; 21-a base substrate; 22-a connecting trough;
31-a barrel body; 32-an injection head; 33-a piston; 34-a clamping part; 41-notch;
111-mounting a cartridge holder; 112-a mounting location; 121-syringe stop collar; 122-syringe stopper pin;
220-a limit groove; 341-bayonet lock; 342-flat edge flap.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the process of pasting, the conductive adhesive material is generally required to be heated up and packaged into different syringe rubber tubes for reuse. However, air mixed in the conductive adhesive affects the dispensing effect and therefore needs to be defoamed, centrifugal defoaming is usually realized by using a centrifugal action of a centrifuge, and if the syringe is unstable in the centrifugal process, the defoaming effect will be affected, so that the syringe needs to be stably fixed.
As shown in fig. 1 to 7, the present invention provides a syringe fixing device for conductive adhesive planetary defoaming, which includes a base 2 and a syringe mounting mechanism 1 mounted on the base 2, wherein the syringe mounting mechanism 1 is used for limiting and mounting a plurality of syringes.
According to the utility model, the needle cylinder mounting mechanism 1 and the base 2 are arranged to simultaneously fix a plurality of needle cylinders 3, then the needle cylinder mounting mechanism 1 is fixed on a mounting position of a centrifugal machine, and the conductive adhesive in the needle cylinders 3 is defoamed by using the centrifugal action of the centrifugal machine. The conductive adhesive in the plurality of needle cylinders can be defoamed simultaneously, and the defoaming efficiency is improved.
In the prior art, centrifugal defoaming is performed according to a conventional mode that the tip of the nozzle faces downwards, but the defoaming effect is not obvious. Therefore, the embodiment of the utility model defoams the conductive adhesive by adopting an inverted defoaming mode with the upward pointed end of the needle cylinder, and compared with the conventional defoaming mode with the upward pointed end, the embodiment defoams the conductive adhesive, and can effectively discharge the air in the needle cylinder, and has an obvious defoaming effect. In addition, the needle cylinder mounting mechanism 1 is provided with a plurality of needle cylinder mounting positions, so that a plurality of needle cylinders can be defoamed simultaneously, and the defoaming efficiency is improved.
Because a plurality of needle cylinders for containing the conductive adhesive are used for carrying out centrifugal deaeration together, the needle cylinders 3 are easy to rotate under the action of centrifugal force, stacking, dislocation, collision and other conditions are easy to occur among the needle cylinders 3, the safety of the deaeration process cannot be ensured, and the deaeration quality is influenced.
Therefore, the syringe is limited and fixed by the syringe limiting installation part 11 and the limiting convex part 12, and the specific implementation mode is as follows:
Wherein, spacing bellying 12 sets up in the spacing installation department 11 bottom of cylinder, and spacing bellying 12 is used for fixing the cylinder in installation position 112, and when installation tube seat 111 installed on base 2, spacing bellying 12 all installed in base 2 with the cylinder bottom.
The mounting position 112 primarily defines the position of each syringe, but during high-speed centrifugal operation, the syringe still may rotate greatly under the action of centrifugal force, which is not favorable for stable deaeration. The needle cylinder is fixed and limited by the limiting convex part 12 and the limiting mechanism and the fixing mechanism, so that the needle cylinder is prevented from rotating by a larger extent in the centrifugal defoaming process, and the defoaming safety and the defoaming quality are improved.
Specifically, the present invention will be described in detail by taking an example of setting five mounting positions 112.
The five mounting positions 112 include a middle main mounting position and four auxiliary mounting positions uniformly spaced on the outer periphery of the main mounting position, and the four auxiliary mounting positions are symmetrical in pairs by taking the main mounting position as a center. The tips of the five syringes 3 are mounted upside down one by one in each mounting position 112, so that the bubbles can be conveniently separated from the conductive adhesive during centrifugal operation.
In detail, the limit protrusion 12 is disposed at the bottom of the main mounting position, the limit protrusion 12 extends and protrudes outward of the mounting position, the limit protrusion 12 is used for fixing the syringe 3 in the main mounting position, and the limit protrusion 12 is simultaneously used for limiting the syringe 3 in the four sub mounting positions on the outer peripheral side.
In detail, the limit protrusion 12 includes a syringe limit ring 121 and a syringe limit pin 122, the syringe limit ring 121 is connected to the bottom of the main mounting location, and the syringe limit pin 122 is connected to the bottom end of the syringe limit ring 121. And two syringe limit pins 122 are arranged, and the two syringe limit pins 122 are symmetrically arranged at two sides of the bottom of the syringe limit ring 121.
The syringe stopper 122 is used to fix the syringe 3 in the main mounting position, and the syringe stopper 121 is hollow and cylindrical and extends to protrude outside the main mounting position. Because the syringe spacing ring 121 protrudes outwards, the syringe 3 in the main mounting position and the syringes 3 in the four auxiliary mounting positions have height differences, the heights of the bottoms of the syringes in the auxiliary mounting positions are parallel and level, and the horizontal plane where the bottom of the syringe 3 in the main mounting position is lower than the horizontal plane where the bottoms of the syringes 3 in the four auxiliary mounting positions on the peripheral side are located.
When the syringe 3 in the main mounting position is mounted in a limited manner by the syringe limiting ring 121 and the syringe limiting pin 122, the clamping portion 34 on the syringe in the main mounting position is correspondingly mounted on the base, and a certain blocking and limiting effect is achieved on the bottoms of the syringes in the four auxiliary mounting positions.
The base 2 is connected with the mounting barrel seat 111 through threads, and the base is connected with the clamping portion 34 in an adaptive mode. Specifically, base 2 includes base body 21, is provided with spread groove 22 on base body 21, is provided with spacing recess 220 on the internal groove face of spread groove 22 is coaxial, and spread groove 22 is used for connecting installation tube seat 111, and spacing recess 220 is used for spacing the interior syringe 3 of fixed main installation position.
In detail, an external thread is arranged at the bottom of the outer side wall of the mounting cylinder seat 111, an internal thread adapted to be connected with the external thread is arranged at the bottom of the inner wall of the connecting groove 22, and the mounting cylinder seat 111 is in threaded connection with the connecting groove 22.
When the syringe is mounted in the mounting seat 111, a gap is formed between the upper surface of the limiting groove 220 and the lower surface of the mounting seat 111, the height of the gap is smaller than the height of the piston 33 of the syringe 3 exposed out of the cylinder 31, and the groove depth of the limiting groove 220 is the height difference between the syringe 3 in the main mounting position and the syringe 3 in the four sub mounting positions.
The syringe used for fixing in the utility model is a common syringe in the existing market, and for the convenience of description, the syringe adapted to be installed in the fixing device of the embodiment of the utility model is described as follows:
the syringe 3 comprises a barrel 31, an injection head 32 with a small hole, a piston 33 and a clamping portion 34, wherein the injection head 32 is arranged at one end of the barrel 31, the clamping portion 34 is arranged at the other end of the barrel 31, the piston 33 is arranged in the barrel 31 at one side close to the clamping portion 34, and the piston 33 is used for preventing conductive adhesive from flowing out of the barrel 31 in the centrifugal defoaming process.
The clamping part 34 comprises a pair of clamping pins 341 and a pair of flat side fins 342, the two clamping pins 341 are symmetrically arranged on two sides of the end part of the cylinder 31, the clamping pins 341 radially extend outwards along the cylinder 31, the clamping pins 341 on two sides are connected through the flat side fins 342, the outer side lines of the flat side fins 342 on two sides are parallel long straight lines, wherein the outer diameter of the syringe limiting ring 121 is smaller than the length between the outer end parts of the clamping pins 341 on two sides, the length between the outer side lines of the flat side fins 342 on two sides is larger than the inner diameter length of the syringe limiting ring 121, and the height of the syringe limiting ring 121 is larger than the thickness of the clamping pins 341.
Specifically, the syringe 3 is mounted and connected in the mounting position 112 with the injection head 32 facing upward and the engaging portion 34 facing downward. For the five syringes installed in the five installation positions 112, only the main installation position with the large middle is provided with the syringe limiting ring 121 and the syringe limiting pin 122, the syringe limiting pin 122 in the middle is buckled on the flat side wing 342 to fix the syringe in the middle, and the syringe limiting pin 122 has a certain blocking effect on the two syringes installed on the same side to prevent excessive rotation in centrifugal operation. The middle syringe is lower than the four syringes, the two lateral bayonet locks are correspondingly arranged in the notch of the base, the flat side fins 342 at the bottom of the four syringes are abutted around the side wall of the syringe spacing ring 121, and the outer side of the flat side fins 342 is arranged to be a straight line (actually, a curve with a slight radian is approximately seen as a straight line), so that the rotation is not easy to occur during the centrifugal defoaming.
Like this, tentatively inject the position of five cylinders through mount cylinder seat 111, when rethread cylinder spacing ring 121 and cylinder spacer pin 122 are fixed to middle cylinder, owing to formed the difference in height and all around with the characteristics of the cylinder distribution butt in the middle of, also spacing four cylinders on every side, improve the spacing stability of cylinder, wholly realized simultaneously five cylinders in three-dimensional direction spacing fixed.
Further, the present invention also provides an embodiment of a method for using the fixing device provided by the present invention, as shown in the block diagram in fig. 8, including the following steps:
step 100, subpackaging conductive adhesive into each needle cylinder, installing a piston into the needle cylinders from one end of a clamping part, wherein the volume of the conductive adhesive subpackaged in each needle cylinder each time is 1/3-2/3 of the volume of each needle cylinder;
step 200, correspondingly installing each syringe filled with conductive adhesive in an installation position provided by a syringe installation mechanism in a mode that a needle head faces upwards;
step 300, mounting the base and the syringe mounting mechanism in a threaded connection manner;
step 400, mounting the syringe mounting mechanism on a centrifuge, and centrifuging by the centrifuge to discharge bubbles in the conductive adhesive from the front-end injection head of the syringe;
and 500, after the centrifugal defoaming is finished, taking out the needle cylinder, pushing the piston to discharge air in the needle cylinder from the front end injection head, and installing the needle head.
Wherein, for easy dismounting, be provided with spacing solid fixed ring 4 on the lateral wall of installation cylinder seat 111 of syringe installation mechanism 1, be provided with notch 41 on spacing solid fixed ring 4, be provided with on the centrifuge with spacing solid fixed ring 4 on the spacing latch closure 5 of notch 41 looks adaptation connection, thereby spacing latch closure 5 corresponds the installation with spacing solid fixed ring 4 and will install cylinder seat 111 fixed connection on centrifuge.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (5)
1. A needle cylinder fixing device for conductive adhesive planetary defoaming is characterized by comprising a base (2) and a needle cylinder mounting mechanism (1) arranged on the base (2), wherein the needle cylinder mounting mechanism (1) is used for limiting and mounting a plurality of needle cylinders;
the needle cylinder mounting mechanism (1) comprises a needle cylinder limiting mounting part (11) and a limiting protruding part (12), the needle cylinder limiting mounting part (11) comprises a mounting cylinder seat (111) and a plurality of mounting positions (112), the mounting cylinder seat (111) is mounted in the base (2), and the mounting positions (112) are arranged in the mounting cylinder seat (111);
spacing bellying (12) set up spacing installation department of cylinder (11) bottom, spacing bellying (12) are used for fixing the cylinder in installation position (112), just installation tube socket (111) are installed when base (2) are gone up, spacing bellying (12) with the cylinder bottom is all installed in base (2).
2. The syringe fixing device for conductive adhesive planetary defoaming as claimed in claim 1, wherein said mounting position (112) is disposed inside said mounting cylinder base (111) along the long axis direction of said mounting cylinder base (111), and the long axis of said mounting position (112) is parallel to the long axis of said mounting cylinder base (111);
the number of the installation positions (112) is five, the five installation positions (112) comprise a middle main installation position and four auxiliary installation positions which are uniformly arranged on the outer peripheral side of the main installation position at intervals, and the syringes are installed in each installation position (112) in a one-to-one correspondence mode.
3. The needle cylinder fixing device for conductive adhesive planetary defoaming as claimed in claim 2, wherein said limiting protrusion (12) is disposed at the bottom of said main mounting position, and said limiting protrusion (12) extends and protrudes to the outside of the bottom surface of said main mounting position, said limiting protrusion (12) is used for fixing said needle cylinder in said main mounting position, and said limiting protrusion (12) is simultaneously used for limiting said needle cylinder in four auxiliary mounting positions on the outer peripheral side.
4. The needle cylinder fixing device for conductive adhesive planet defoaming as claimed in claim 3, wherein the limiting boss (12) comprises a needle cylinder limiting ring (121) and a needle cylinder limiting pin (122), the needle cylinder limiting ring (121) is connected to the bottom of the main mounting position, the needle cylinder limiting pin (122) is connected to the bottom end of the needle cylinder limiting ring (121), two needle cylinder limiting pins (122) are provided, the two needle cylinder limiting pins (122) are symmetrically arranged on two sides of the bottom of the needle cylinder limiting ring (121),
the needle cylinder limiting pin (122) is used for fixing the needle cylinder in the main installation position, the needle cylinder limiting ring (121) extends to the outside of the main installation position to form a protrusion, the needle cylinder installed in the main installation position and the needle cylinders in the four auxiliary installation positions form a height difference, and the horizontal plane where the bottom of the needle cylinder in the main installation position is lower than the horizontal plane where the bottom of the needle cylinder in the four auxiliary installation positions on the outer peripheral side is located.
5. The needle cylinder fixing device for conductive adhesive planetary defoaming as claimed in claim 4, wherein said base (2) comprises a base body (21), a connecting groove (22) is disposed on said base body (21), a limiting groove (220) is coaxially disposed on an inner groove surface of said connecting groove (22), said connecting groove (22) is used for connecting said mounting cylinder seat (111), said limiting groove (220) is used for mounting said limiting protrusion (12) and said needle cylinder in the middle;
wherein, the bottom of the outer side wall of the mounting cylinder seat (111) is provided with an external thread, the bottom of the inner wall of the connecting groove (22) is provided with an internal thread which is matched and connected with the external thread, the mounting cylinder seat (111) is in threaded connection with the connecting groove (22),
a gap is formed between the upper surface of the limiting groove (220) and the lower surface of the mounting cylinder seat (111), the height of the gap is smaller than the height of the piston of the cylinder exposed out of the cylinder body of the cylinder, and the groove depth of the limiting groove (220) is the height difference formed by the cylinder in the main mounting position and the cylinders in the four auxiliary mounting positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122346193.4U CN215781691U (en) | 2021-09-27 | 2021-09-27 | Conductive adhesive is cylinder fixing device for planet deaeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122346193.4U CN215781691U (en) | 2021-09-27 | 2021-09-27 | Conductive adhesive is cylinder fixing device for planet deaeration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215781691U true CN215781691U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122346193.4U Active CN215781691U (en) | 2021-09-27 | 2021-09-27 | Conductive adhesive is cylinder fixing device for planet deaeration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215781691U (en) |
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2021
- 2021-09-27 CN CN202122346193.4U patent/CN215781691U/en active Active
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