CN112870467A - Negative pressure centrifugal glue injection encapsulation process and device - Google Patents
Negative pressure centrifugal glue injection encapsulation process and device Download PDFInfo
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- CN112870467A CN112870467A CN202110045875.3A CN202110045875A CN112870467A CN 112870467 A CN112870467 A CN 112870467A CN 202110045875 A CN202110045875 A CN 202110045875A CN 112870467 A CN112870467 A CN 112870467A
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- 239000003292 glue Substances 0.000 title claims abstract description 116
- 238000002347 injection Methods 0.000 title claims abstract description 105
- 239000007924 injection Substances 0.000 title claims abstract description 105
- 238000005538 encapsulation Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 15
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims description 56
- 239000004945 silicone rubber Substances 0.000 claims description 23
- 238000009423 ventilation Methods 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 9
- 238000004382 potting Methods 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005119 centrifugation Methods 0.000 claims description 2
- 108700028490 CAP protocol 2 Proteins 0.000 claims 3
- 239000000243 solution Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 description 4
- 239000012510 hollow fiber Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001631 haemodialysis Methods 0.000 description 1
- 230000000322 hemodialysis Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1621—Constructional aspects thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1621—Constructional aspects thereof
- A61M1/1623—Disposition or location of membranes relative to fluids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1698—Blood oxygenators with or without heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Emergency Medicine (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- External Artificial Organs (AREA)
Abstract
The invention belongs to the technical field of medical equipment production, and particularly relates to a negative pressure centrifugal glue injection encapsulation process and a device, wherein the process comprises the following steps: the upper cover, the lower box, the glue injection encapsulation assembly and the rotating assembly; the upper cover comprises first screw, first flange, first through-hole, first dynamic seal circle and first lid, first screw hole, first step groove and exhaust through-hole. According to the mechanical follow-up steering device for the vehicle-mounted radar, the method and the device are used for injecting glue and encapsulating, a glue injection opening is not required to be formed in the shell, and glue can be directly injected and encapsulated through the silicon rubber injection pad; when the fluidity of the glue solution is poor, the glue solution in the glue injection cylinder is sucked into the shell through negative pressure, so that a good filling effect can be ensured; the glue injection encapsulation can be simultaneously carried out on different side surfaces of the square shell and different areas of the same side surface through a plurality of pipelines.
Description
Technical Field
The invention relates to the technical field of medical equipment production, in particular to a negative-pressure centrifugal glue injection encapsulation process and a negative-pressure centrifugal glue injection encapsulation device.
Background
The invention aims at the condition that the edge of a product needs to be injected and encapsulated by a membrane oxygenator for extracorporeal circulation, a dialyzer for hemodialysis and the like. The membrane oxygenator and dialyzer generally mainly comprise a shell and hollow fibers arranged inside the shell, and glue solution needs to be injected into the joint of the shell and the ends of the hollow fibers in the preparation process so as to achieve the functions of connection and sealing. In the prior art, in order to prevent the glue solution from permeating into the gaps between the fibers under the action of surface tension, a centrifugal treatment is generally adopted, that is, the glue solution is injected into two port positions of a membrane oxygenator or a dialyzer through a glue injection port on a shell in advance, and then the whole assembly is rotated until the glue solution is cured and encapsulated.
The method has the following limitations: firstly, a glue injection port must be arranged on the shell, so that the structural design of the shell of the membrane oxygenator dialyzer is limited; secondly, the driving force for injecting the glue solution is self gravity, and if the glue solution has high viscosity and poor fluidity, the filling effect of the encapsulation is poor; thirdly, the current method is only suitable for potting openings at two ends of a cylindrical shell, and is difficult to simultaneously pot openings at four sides of the cylindrical shell; fourthly, the effect of partition encapsulation of a unilateral encapsulation surface is difficult to realize by the current method.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
Therefore, the invention aims to provide a negative pressure centrifugal glue injection encapsulation process and a device, the method and the device of the invention carry out glue injection encapsulation, glue injection encapsulation can be directly carried out through a silicon rubber glue injection pad without arranging a glue injection port on a shell; when the fluidity of the glue solution is poor, the glue solution in the glue injection cylinder is sucked into the shell through negative pressure, so that a good filling effect can be ensured; the glue injection encapsulation can be simultaneously carried out on different side surfaces of the square shell and different areas of the same side surface through a plurality of pipelines. .
To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:
the utility model provides a negative pressure centrifugation injecting glue embedment device which includes: the upper cover, the lower box, the glue injection encapsulation assembly and the rotating assembly;
the upper cover consists of a first screw, a first flange, a first through hole, a first dynamic sealing ring, a first cover body, a first screw hole, a first step groove and an exhaust through hole;
the lower box consists of a box body, a sealing ring, a clamping groove, a second screw, a second flange, a second through hole, a second dynamic sealing ring, a second screw hole, a second stepped groove, a key groove, a flat key, a rotating shaft and a second cover body, and the upper end of the rotating shaft is provided with an end head with a smaller diameter;
the glue injection encapsulation assembly consists of a dialyzer shell, a region to be encapsulated, a silicon rubber glue injection pad, a glue injection joint, a rubber pad protrusion, a shell groove, a lateral fixing block, a third through hole, a third screw, a fourth through hole, an upper fixing block, a third screw hole, a fourth screw, a fifth through hole, a lower fixing block, a fourth screw hole, a first side end cover combination, a second side end cover combination, a third side end cover combination, a first ventilation through hole, a second ventilation through hole and a circular boss;
the rotating assembly is composed of a rotating seat, an upright post, a third through hole, an adhesive injection cylinder, an adhesive outlet joint, a first silicon rubber connecting pipe, a second silicon rubber connecting pipe, a fifth screw, a fixed cylinder, a sixth through hole and a positioning screw.
A negative pressure centrifugal glue injection encapsulation process comprises the following steps:
s1: a first screw penetrates through a first through hole in the first flange and is screwed into a first screw hole in the first cover body, so that the first dynamic sealing ring is arranged in a first step groove in the center of the cover body, and the exhaust through hole is connected with a vacuum pump through a joint and a pipeline;
s2: the sealing ring is arranged in a clamping groove at the upper edge of the box body, a second screw passes through a second through hole on the second flange and is screwed into a second screw hole at the bottom of the box body, so that a second dynamic sealing ring is arranged in a second step groove at the center of the bottom of a second cover body, a part with a smaller diameter above the rotating shaft passes through the second dynamic sealing ring, and then the flat key is arranged in the key groove;
s3: the dialyzer shell is provided with four sides to be encapsulated, each side is provided with two different regions to be encapsulated, an upper fixed block is buckled on the upper surface of the shell, the upper fixed block is provided with four ventilation through holes and a circular boss, a lower fixed block is buckled on the lower surface of the shell, the lower fixed block is provided with four second ventilation through holes, a silicon rubber injection pad is buckled at the side port of the shell, a side fixed block is buckled on the silicon rubber injection pad, an injection connector penetrates through a third through hole, a third screw penetrates through a fourth through hole and is screwed into a third screw hole of the upper fixed block, and a fourth screw penetrates through a fifth through hole and is screwed into a fourth screw hole of the upper fixed block;
s4: placing the combined glue injection encapsulation assembly on a rotary seat, wherein stand columns are arranged at four end angles of the rotary seat and used for fixing the glue injection encapsulation assembly, four third through holes are formed in the rotary seat and are opposite to second through holes of a lower fixed block, fifth screws penetrate through sixth through holes in a fixed cylinder and are screwed into third screw holes of an upper fixed block, a glue injection cylinder is fixed on a circular boss of the upper fixed block, positioning screws are uniformly distributed on the side surface of the fixed cylinder and used for fixing the glue injection cylinder, and a glue outlet joint is connected with the glue injection joint through a first silicon rubber connecting pipe;
s5: a lower box, an upper cover and a rotating assembly of the negative pressure centrifugal glue injection filling and sealing device are arranged together in a concentric mode;
s6: the rotating assembly is rotated by external rotating power through the rotating shaft, the sealing state is maintained by the second dynamic sealing ring and the end head with the smaller diameter above the rotating shaft, the sealing state is maintained by the first dynamic sealing ring and the fixed cylinder, the sealing state of the upper cover and the lower box is maintained by the sealing ring, glue liquid is poured into the glue injection when the rotating assembly rotates, air in the lower box is pumped out from the exhaust hole through the vacuum pump, and under the dual action of centrifugal force and negative pressure, the glue liquid is injected into the silicone rubber injection pad through the silicone rubber connecting pipe and the glue injection encapsulation of four side surfaces of the dialyzer shell is completed.
As a preferred scheme of the negative pressure centrifugal glue injection encapsulation process, the invention comprises the following steps: in the step S3, a rubber pad protrusion is arranged on the silicon rubber injection pad, and the rubber pad protrusion and the shell groove on the shell have the same outline.
As a preferred scheme of the negative pressure centrifugal glue injection encapsulation process, the invention comprises the following steps: in the step S3, the third screw and the fourth screw connect the side fixing block with the upper fixing block and the lower fixing block, and the silicone rubber injection pad and the shell can be tightly buckled together by screwing the screws; the glue injection joint is an inlet for glue to flow into the potting part of the shell.
As a preferable aspect of the mechanical follow-up steering apparatus for a vehicle-mounted radar according to the present invention, wherein: in the step S3, the first side end cap assembly, the second side end cap assembly, and the third side end cap assembly are combined with the upper fixing block and the lower fixing block in the same manner.
As a preferred scheme of the negative pressure centrifugal glue injection encapsulation process, the invention comprises the following steps: in the step S4, a second silicone rubber connecting pipe and other silicone rubber connecting pipes are installed in the same manner as the first silicone rubber connecting pipe.
Compared with the prior art: the rotating component is rotated through the rotating shaft by external rotating power, the dynamic sealing ring and the part with smaller diameter above the rotating shaft maintain a sealing state, the dynamic sealing ring and the fixed cylinder maintain a sealing state, and the sealing ring maintains the sealing state of the upper cover and the box body. When the rotating assembly rotates, glue is poured into the glue injection, and air in the box is pumped out from the exhaust hole through the vacuum pump. Under the dual action of centrifugal force and negative pressure, glue solution is injected into the silicon rubber injection pad through the silicon rubber connecting pipe and the glue injection encapsulation of the four side surfaces of the square shell is completed; when the fluidity of the glue solution is poor, the glue solution in the glue injection cylinder is sucked into the shell through negative pressure, so that a good filling effect can be ensured; the glue injection encapsulation can be simultaneously carried out on different side surfaces of the square shell and different areas of the same side surface through a plurality of pipelines.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:
FIG. 1 is an exploded view of the upper cover of the present invention;
FIG. 2 is an exploded view of the lower case of the present invention;
FIG. 3 is an exploded view of the glue injection potting assembly of the present invention;
FIG. 4 is a cross-sectional view of the glue injection potting assembly of the present invention;
FIG. 5 is a schematic view of a connection structure of the rotary assembly and the glue injection encapsulation assembly according to the present invention;
FIG. 6 is a schematic structural view of the present invention;
fig. 7 is a cross-sectional view of the present invention.
In the figure:
the upper cover 59: the sealing structure comprises a first screw 1, a first flange 2, a first through hole 3, a first dynamic sealing ring 4, a first cover body 5, a first screw hole 6, a first step groove 7 and an exhaust through hole 8;
the lower box 58: the sealing device comprises a box body 10, a sealing ring 9, a clamping groove 11, a second screw 12, a second flange 13, a second through hole 14, a second dynamic sealing ring 15, a second screw hole 16, a second stepped groove 17, a key groove 19, a flat key 20, a rotating shaft 21, a second cover body 22 and an end head 18;
glue injection encapsulation assembly 48: the dialyzer comprises a dialyzer shell 23, a region to be encapsulated 24, a silicone rubber injection pad 25, an injection joint 26, a rubber pad protrusion 27, a shell groove 28, a side fixing block 29, a third through hole 30, a third screw 31, a fourth through hole 32, an upper fixing block 33, a third screw hole 34, a fourth screw 35, a fifth through hole 36, a lower fixing block 37, a fourth screw hole 38, a first side end cover combination 39, a second side end cover combination 40, a third side end cover combination 41, a first ventilation through hole 42 and a second ventilation through hole 43, wherein the circular boss 44 is a circular boss;
the rotating assembly 57: the rubber injection device comprises a rotating seat 45, a vertical column 46, a third through hole 47, a rubber injection cylinder 49, a rubber outlet joint 50, a first silicon rubber connecting pipe 51, a second silicon rubber connecting pipe 52, a fifth screw 53, a fixed cylinder 54, a sixth through hole 55 and a positioning screw 56.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The invention provides a mechanical follow-up steering device for a vehicle-mounted radar, and the method and the device can be used for injecting glue and encapsulating, do not need to arrange a glue injection port on a shell, and can be used for directly injecting glue and encapsulating through a silicon rubber glue injection pad; when the fluidity of the glue solution is poor, the glue solution in the glue injection cylinder is sucked into the shell through negative pressure, so that a good filling effect can be ensured; through many pipelines can carry out injecting glue embedment to different sides of square casing to and the different regions of same side simultaneously, please refer to fig. 1-7, include: an upper cover 59, a lower box 58, a glue injection encapsulation assembly 48 and a rotating assembly 57;
referring to fig. 1 to 7 again, the upper cover 59 is composed of a first screw 1, a first flange 2, a first through hole 3, a first dynamic seal ring 4, a first cover body 5, a first screw hole 6, a first stepped groove 7 and an exhaust through hole 8;
the lower box 58 is composed of a box body 10, a sealing ring 9, a clamping groove 11, a second screw 12, a second flange 13, a second through hole 14, a second dynamic sealing ring 15, a second screw hole 16, a second step groove 17, a key groove 19, a flat key 20, a rotating shaft 21 and a second cover body 22, and the upper end of the rotating shaft 21 is provided with a tip 18 with a smaller diameter;
the glue injection encapsulation assembly 48 consists of a dialyzer shell 23, a region to be encapsulated 24, a silicon rubber glue injection pad 25, a glue injection joint 26, a rubber pad bulge 27, a shell groove 28, a side fixing block 29, a third through hole 30, a third screw 31, a fourth through hole 32, an upper fixing block 33, a third screw hole 34, a fourth screw 35, a fifth through hole 36, a lower fixing block 37, a fourth screw hole 38, a first side end cover combination 39, a second side end cover combination 40, a third side end cover combination 41, a first ventilation through hole 42, a second ventilation through hole 43 and a circular boss 44;
the rotating assembly 57 is composed of a rotating base 45, an upright column 46, a third through hole 47, a glue injection cylinder 49, a glue outlet joint 50, a first silicon rubber connecting pipe 51, a second silicon rubber connecting pipe 52, a fifth screw 53, a fixed cylinder 54, a sixth through hole 55 and a positioning screw 56.
Referring to fig. 1-7 again, a negative pressure centrifugal glue injection encapsulation device includes the following steps:
s1: a first screw 1 penetrates through a first through hole 3 on a first flange 2 and is screwed into a first screw hole 6 on a first cover body 5, so that a first dynamic sealing ring 4 is arranged in a first step groove 7 in the center of the cover body 5, and an exhaust through hole 8 is connected with a vacuum pump through a joint and a pipeline;
s2: the sealing ring 9 is arranged in a clamping groove 11 on the upper edge of the box body 10, a second screw 12 passes through a second through hole 14 on a second flange 13 and is screwed into a second screw hole 16 on the bottom of the box body, so that a second dynamic sealing ring 15 is arranged in a second step groove 17 in the center of the bottom of a second cover body 22, a part 18 with a smaller diameter above a rotating shaft 21 passes through the second dynamic sealing ring 15, and then a flat key 20 is arranged in a key groove 19;
s3: the dialyzer shell 23 is provided with four sides to be encapsulated, each side is provided with two different regions 24 to be encapsulated, an upper fixing block 33 is buckled on the upper surface of the shell 23, the upper fixing block 33 is provided with four ventilation through holes 42 and a circular boss 44, a lower fixing block 37 is buckled on the lower surface of the shell 23, the lower fixing block 37 is provided with four second ventilation through holes 43, a silicone rubber injection pad 25 is buckled on the side port of the shell 23, a side fixing block 29 is buckled on the silicone rubber injection pad 25, an injection connector 26 penetrates through a third through hole 30, a third screw 31 penetrates through a fourth through hole 32 and is screwed into a third screw hole 34 of the upper fixing block 33, and a fourth screw 35 penetrates through a fifth through hole 36 and is screwed into a fourth screw hole 38 of the upper fixing block 33;
s4: placing the combined glue injection encapsulation assembly 48 on a rotating base 45, wherein stand columns 46 are arranged at four end corners of the rotating base 45 and used for fixing the glue injection encapsulation assembly 48, four third through holes 47 are formed in the rotating base 45 and are opposite to second through holes 43 of a lower fixed block 37, fifth screws 53 penetrate through sixth through holes 55 in a fixed cylinder 54 and are screwed into third screw holes 34 of an upper fixed block 33, a glue injection cylinder 49 is fixed on a circular boss 44 of the upper fixed block 33, 4 positioning screws 56 are uniformly distributed on the side surface of the fixed cylinder 54 and used for fixing the glue injection cylinder 49, and a glue outlet connector 50 is connected with a glue injection connector 26 through a first silicon rubber connecting pipe 51;
s5: the lower box 58, the upper cover 59 and the rotating assembly 57 of the negative pressure centrifugal glue injection filling and sealing device are concentrically arranged together;
s6: the rotating assembly 57 is rotated by external rotation power through the rotating shaft 21, the second dynamic sealing ring 15 and the end head 18 with a smaller diameter above the rotating shaft 21 maintain a sealing state, the first dynamic sealing ring 4 and the fixed cylinder 54 maintain a sealing state, the sealing ring 9 maintains a sealing state of the upper cover 59 and the lower box 58, glue is poured into the glue injection while the rotating assembly 57 rotates, air in the lower box 58 is pumped out from the exhaust hole 8 through the vacuum pump, and the glue 60 is injected into the silicone rubber injection pad 25 through the silicone rubber connecting pipe under the dual action of centrifugal force and negative pressure, so that the glue injection and encapsulation on four sides of the dialyzer shell 23 are completed.
Referring to fig. 3 again, in step S3, the silicone rubber injection pad 25 has a pad protrusion 27 with a contour identical to the housing recess 28 of the housing 23.
Referring to fig. 3 again, in the step S3, the third screw 31 and the fourth screw 35 connect the side fixing block 29 with the upper fixing block 33 and the lower fixing block 37, and the silicone rubber injection pad 25 and the housing 23 can be tightly fastened together by screwing the screws; the glue injection joint 26 is the inlet for glue to flow into the potting of the housing.
Referring to fig. 3 again, in step S4, the first side end cap assembly 39, the second side end cap assembly 40, and the third side end cap assembly 41 are combined with the upper fixing block 33 and the lower fixing block 37 in the same manner.
Referring to fig. 4 again, in the step S5, the second silicone rubber connecting tube 52 and other silicone rubber connecting tubes are installed in the same manner as the first silicone rubber connecting tube 51.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. The utility model provides a negative pressure centrifugation injecting glue embedment device which characterized in that includes: the upper cover, the lower box, the glue injection encapsulation assembly and the rotating assembly;
the upper cover consists of a first screw, a first flange, a first through hole, a first dynamic sealing ring, a first cover body, a first screw hole, a first step groove and an exhaust through hole;
the lower box consists of a box body, a sealing ring, a clamping groove, a second screw, a second flange, a second through hole, a second dynamic sealing ring, a second screw hole, a second stepped groove, a key groove, a flat key, a rotating shaft and a second cover body, and the upper end of the rotating shaft is provided with an end head with a smaller diameter;
the glue injection encapsulation assembly consists of a dialyzer shell, a region to be encapsulated, a silicon rubber glue injection pad, a glue injection joint, a rubber pad protrusion, a shell groove, a lateral fixing block, a third through hole, a third screw, a fourth through hole, an upper fixing block, a third screw hole, a fourth screw, a fifth through hole, a lower fixing block, a fourth screw hole, a first side end cover combination, a second side end cover combination, a third side end cover combination, a first ventilation through hole, a second ventilation through hole and a circular boss;
the rotating assembly is composed of a rotating seat, an upright post, a third through hole, an adhesive injection cylinder, an adhesive outlet joint, a first silicon rubber connecting pipe, a second silicon rubber connecting pipe, a fifth screw, a fixed cylinder, a sixth through hole and a positioning screw.
2. A negative pressure centrifugal glue injection encapsulation process is characterized by comprising the following steps:
s1: a first screw penetrates through a first through hole in the first flange and is screwed into a first screw hole in the first cover body, so that the first dynamic sealing ring is arranged in a first step groove in the center of the cover body, and the exhaust through hole is connected with a vacuum pump through a joint and a pipeline;
s2: the sealing ring is arranged in a clamping groove at the upper edge of the box body, a second screw passes through a second through hole on the second flange and is screwed into a second screw hole at the bottom of the box body, so that a second dynamic sealing ring is arranged in a second step groove at the center of the bottom of a second cover body, a part with a smaller diameter above the rotating shaft passes through the second dynamic sealing ring, and then the flat key is arranged in the key groove;
s3: the dialyzer shell is provided with four sides to be encapsulated, each side is provided with two different regions to be encapsulated, an upper fixed block is buckled on the upper surface of the shell, the upper fixed block is provided with four ventilation through holes and a circular boss, a lower fixed block is buckled on the lower surface of the shell, the lower fixed block is provided with four second ventilation through holes, a silicon rubber injection pad is buckled at the side port of the shell, a side fixed block is buckled on the silicon rubber injection pad, an injection connector penetrates through a third through hole, a third screw penetrates through a fourth through hole and is screwed into a third screw hole of the upper fixed block, and a fourth screw penetrates through a fifth through hole and is screwed into a fourth screw hole of the upper fixed block;
s4: placing the combined glue injection encapsulation assembly on a rotary seat, wherein stand columns are arranged at four end angles of the rotary seat and used for fixing the glue injection encapsulation assembly, four third through holes are formed in the rotary seat and are opposite to second through holes of a lower fixed block, fifth screws penetrate through sixth through holes in a fixed cylinder and are screwed into third screw holes of an upper fixed block, a glue injection cylinder is fixed on a circular boss of the upper fixed block, positioning screws are uniformly distributed on the side surface of the fixed cylinder and used for fixing the glue injection cylinder, and a glue outlet joint is connected with the glue injection joint through a first silicon rubber connecting pipe;
s5: a lower box, an upper cover and a rotating assembly of the negative pressure centrifugal glue injection filling and sealing device are arranged together in a concentric mode;
s6: the rotating assembly is rotated by external rotating power through the rotating shaft, the sealing state is maintained by the second dynamic sealing ring and the end head with the smaller diameter above the rotating shaft, the sealing state is maintained by the first dynamic sealing ring and the fixed cylinder, the sealing state of the upper cover and the lower box is maintained by the sealing ring, glue liquid is poured into the glue injection when the rotating assembly rotates, air in the lower box is pumped out from the exhaust hole through the vacuum pump, and under the dual action of centrifugal force and negative pressure, the glue liquid is injected into the silicone rubber injection pad through the silicone rubber connecting pipe and the glue injection encapsulation of four side surfaces of the dialyzer shell is completed.
3. The negative-pressure centrifugal glue injection potting process according to claim 2, wherein the silicone rubber glue injection pad in the step S3 has a pad protrusion with a contour identical to that of the housing groove on the housing.
4. The negative-pressure centrifugal glue injection, encapsulation and sealing process of claim 2, wherein in the step S3, the lateral fixing blocks, the upper fixing block and the lower fixing block are connected by the third screw and the fourth screw, and the silicone rubber injection pad and the shell can be tightly buckled together by screwing the screws; the glue injection joint is an inlet for glue to flow into the potting part of the shell.
5. The negative-pressure centrifugal glue injection, potting and sealing process of claim 2, wherein the first side end cap combination, the second side end cap combination and the third side end cap combination in the step S3 are combined with the upper fixing block and the lower fixing block in the same manner.
6. The negative-pressure centrifugal glue injection, potting and sealing process of claim 2, wherein in step S4, a second silicone rubber connecting pipe and other silicone rubber connecting pipes are installed in the same manner as the first silicone rubber connecting pipe.
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Application publication date: 20210601 |