CN115027009B - Waterproof packaging box forming die for automobile flat connector and forming method of waterproof packaging box forming die - Google Patents
Waterproof packaging box forming die for automobile flat connector and forming method of waterproof packaging box forming die Download PDFInfo
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- CN115027009B CN115027009B CN202210885782.6A CN202210885782A CN115027009B CN 115027009 B CN115027009 B CN 115027009B CN 202210885782 A CN202210885782 A CN 202210885782A CN 115027009 B CN115027009 B CN 115027009B
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- die
- injection molding
- molding
- positioning
- waterproof
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- 238000000034 method Methods 0.000 title claims description 12
- 238000004806 packaging method and process Methods 0.000 title claims description 12
- 238000001746 injection moulding Methods 0.000 claims abstract description 53
- 238000003466 welding Methods 0.000 claims abstract description 20
- 239000003292 glue Substances 0.000 claims description 36
- 238000002347 injection Methods 0.000 claims description 31
- 239000007924 injection Substances 0.000 claims description 31
- 238000000465 moulding Methods 0.000 claims description 14
- 239000000084 colloidal system Substances 0.000 claims description 10
- 235000011837 pasties Nutrition 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 5
- 239000002390 adhesive tape Substances 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000005022 packaging material Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012778 molding material Substances 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012858 packaging process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14131—Positioning or centering articles in the mould using positioning or centering means forming part of the insert
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/36—Plugs, connectors, or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a waterproof injection molding box forming die for an automobile flat connector, which comprises a die composed of an upper die and a lower die, wherein round cables and flat cables are arranged in a plurality of grooves formed in the die, positioning protruding points are arranged on the upper die and the lower die, the positioning protruding points are added at one injection molding position according to size calculation, a gap between the upper die and the lower die after closing is basically and completely fixed at a position to be molded without damaging the position to be molded, so that the movement of the welding spot position in the injection molding process is prevented, and meanwhile, two injection molding positioning points are arranged at the first injection molding position and the second injection molding position in the die, so that positioning points are formed for two injection molding, and the two injection molding workpieces can be ensured to be fully positioned. The welding spot is prevented from moving up and down and left and right in the injection molding body, the insulation film is prevented from leaking, the insulation film is prevented from being damaged, and the reliability of the waterproof performance can be improved.
Description
Technical Field
The invention belongs to the technical field of molds, and particularly relates to a waterproof packaging box forming mold for an automobile flat connector and a forming method thereof.
Background
At present, the waterproof technology of a non-flat connector in the automobile wire harness industry is mature, but the waterproof problem solution of the flat connector is not mature. This is mainly because flat connectors have been used only in high-end vehicles to support high-end functions, and have come into widespread use in recent years. The waterproof technology of the flat connector is relatively slow to develop. The water resistance mentioned here is mainly the welding point of the electric wire and the flat cable. This is an unavoidable welding spot.
The current waterproof technology mainly uses plastic to directly encapsulate the welding spot.
While the prior art has drawbacks and deficiencies:
1. the waterproof function of the connector is mainly realized by virtue of the protection of welding spots, and the packaging of the welding spots is basically not independently designed according to the waterproof requirement of the connector, so burrs can be generated on the periphery of packaging materials in the injection molding process, and the burrs can press the insulating film to cause the damage of the insulating film. The waterproof performance is unstable.
2. The solder joint protection of the connector mainly depends on tape adhesion protection, and the adhesive tape is small in area and generally not more than 0.5mm in thickness due to the requirement of the packaging space, so that the adhesive tape is easily damaged by the impact force of packaging materials in the plastic injection packaging process, and the waterproof performance can be invalid.
3. The connectors are different in the number of connected circuits, and on connectors with a plurality of channels, due to the shrink nature of packaging materials, multiple flat cables are not parallel, the spacing between the tail ends of the cables is changed, and the connector is unqualified in size.
4. Because the flat cable is softer and the current thinnest total thickness position is 0.17mm, in the injection molding process, the flat cable at the packaging position is easy to be impacted by packaging materials, so that curling or deflection occurs at the injection molding position, and the flat cable can be naked to leak to the outer side of the packaging body, thereby causing the failure of waterproof performance.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a waterproof packaging box forming mold for an automotive flat connector and a forming method thereof.
The invention provides the following technical scheme:
the utility model provides a waterproof encapsulation box forming die for automobile flat connector, includes the mould that comprises last mould and lower mould, arranges in circular cable and flat cable in a plurality of recess that the mould was equipped with, go up all to be equipped with the location bump on mould and the lower mould to and mould interior injection molding department and secondary injection molding department in the mould all are equipped with the locating point of moulding plastics for the second time.
Specifically, the lower die is provided with a plurality of positioning bulges at the corresponding positions of the round cable and the flat cable, a soft fixing pad is arranged at the lower part of the lower die corresponding to the round cable and the flat cable, and a position sensor is arranged in a cavity arranged in the positioning bulge at the end part of the corresponding flat cable.
Specifically, a plurality of glue inlets are arranged on the die.
Specifically, the auxiliary glue injection device is further included, and the die is installed in the auxiliary glue injection device.
Specifically, supplementary injecting glue device includes the shelf, and the mould is installed on the shelf, and the guiding axle is installed on the shelf, and fixed block movable mounting is on the guiding axle, and the fixed block passes through the bottom plate to be installed subaerial, and screw bolt one end passes through nut thread to be installed on the shelf, and the screw bolt other end passes through bearing frame subassembly movable mounting on the bottom plate, and installs the hand wheel on the screw bolt.
Specifically, the mould is installed on the shelf through placing the board, and the fixed block passes through bearing fit retaining ring movable mounting on the guiding axle.
Specifically, the glue injection pipeline is arranged outside the auxiliary glue injection device through a fixed column outside the frame.
Based on the device, the invention also provides a molding method using the waterproof packaging box molding die for the automobile flat connector, which comprises the following steps:
s1, processing a die by using high-precision processing equipment, wherein burrs on the inner surface of the die are smaller than 0.1mmm;
s2, uniformly coating high-temperature-resistant pasty colloid on the surface and the periphery of a welding spot before injection molding, so that the periphery of the welding spot is completely covered, standing for 4-5 hours at the temperature of 20-30 ℃, and performing injection molding again after the colloid is completely solidified;
s3, after the primary injection molding is finished, manually rotating a hand wheel, and driving a glue inlet at the secondary injection molding position to be right below the glue injection pipeline for secondary injection molding.
Specifically, the high-temperature-resistant pasty colloid is a silica gel paste.
The beneficial effects of the invention are as follows:
1. considering that the stability of the packaging process needs to be ensured, the precision machining is carried out on the cavity, the whole cavity adopts precise modularized design and adjustment, the molding size is more precise, burrs can be generated by the molding size to be less than 0.1mm, the insulation film can be prevented from being damaged by the burrs, and the waterproof reliability is improved.
2. The adhesive tape for protecting the welding spots is replaced by the high-temperature-resistant pasty colloid, and the plastic is encapsulated after the colloid is solidified, so that the adhesive force of the colloid coated on the two sides of the welding spots is increased by 4-5 times compared with that of the adhesive tape, the protection glue for the welding spots is prevented from being damaged by impact force in the encapsulation process, and the waterproof performance of the welding spots is ensured.
3. The design of the positioning protrusions in the die realizes that a plurality of flat cables subjected to injection molding simultaneously are still parallel after injection molding, so that deformation is reduced, and the reliability of the product size is improved.
4. The positioning protruding points are added in the die cavity through calculation, so that the packaged position can be prevented from curling and moving, cable damage is avoided, and waterproof reliability is improved.
5. The special positioning and fixing pad and the position sensor are additionally arranged on the outer side of the cavity on the die, so that the cable is prevented from being extruded and damaged, and the waterproof reliability is improved. Meanwhile, an auxiliary glue injection device is designed, so that the secondary glue injection of the die is convenient to control, the working efficiency is improved, and the consumption of labor force is reduced.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the structural relationship between a lower mold and a round cable, and a flat cable in the present invention;
FIG. 2 is a three-dimensional view of a lower die in the present invention;
FIG. 3 is a three-dimensional view of the upper die of the present invention;
FIG. 4 is a three-dimensional view of a mold in accordance with the present invention;
FIG. 5 is a schematic diagram of the overall structure of an auxiliary glue injection device according to a second embodiment of the present invention;
fig. 6 is a cross-sectional view at A-A in fig. 5.
Detailed Description
Example 1
As shown in fig. 1 to 3, the invention provides a waterproof injection molding box forming mold for an automobile flat connector, which comprises a mold 14 composed of an upper mold 1 and a lower mold 2, wherein round cables 9 and flat cables 4 are arranged in a plurality of grooves 6 formed in the mold 14, positioning protruding points 3 are arranged on the upper mold 1 and the lower mold 2, the positioning protruding points 3 are added at a primary injection molding position 12 according to size calculation, a gap between the upper mold and the lower mold after closing is basically and completely fixed at a position to be molded without damaging the position to be molded, so that the movement of a welding spot position in the injection molding process is prevented, and meanwhile, secondary injection molding positioning points 10 are arranged in the mold 14 at the primary injection molding position 12 and the secondary injection molding position 11, so that positioning points are formed for two injection molding, and the two injection molding workpieces can be ensured to be fully positioned. The welding spot is prevented from moving up and down and left and right in the injection molding body, the insulation film is prevented from leaking, the insulation film is prevented from being damaged, and the reliability of the waterproof performance can be improved.
Referring to fig. 1, the lower die 2 is provided with a plurality of positioning protrusions 5 at the positions corresponding to the round cable 9 and the flat cable 4, so that the structures for positioning the round cable 9 and the flat cable 4 prevent lateral movement; and the lower mould 2 is equipped with soft fixed bolster 8 corresponding to circular cable 9 and flat cable 4 below department, installs position sensor 7 in the cavity that corresponds being equipped with in the protruding 5 of flat cable 4 tip department location simultaneously, and position sensor 7 can guarantee circular cable 9 and flat cable 4 and fully fix when the mould is closed, can send out the warning again when flat cable 4 position skew, stops moulding plastics to avoid the cable to be extrudeed the damage, improved waterproof reliability.
The positioning protruding points 3 are added in the die cavity through calculation, so that the molded position can be prevented from curling and moving, cable damage is avoided, and waterproof reliability is improved. Meanwhile, the special positioning bulge 5, the soft fixing pad 8 and the position sensor 7 are additionally arranged on the outer side of the cavity of the die, so that the cable is prevented from being extruded and damaged, and the waterproof reliability is further improved.
The design of the positioning protrusion 5 in the mold 14 realizes that a plurality of flat cables which are simultaneously injection molded are still parallel after injection molding, so that deformation is reduced, and the reliability of the product size is increased.
Referring to fig. 4, a plurality of glue inlets 13 are formed in a mold 14, and a hot runner with accurate temperature control is formed in the mold, so that the temperature stability of the injection molding material in the runner can be ensured; because of the multi-point glue feeding, the flow channel is relatively complex, the hot runner heaters are uniformly distributed on the periphery of the flow channel, and the precise temperature control of the hot runner is realized by using a precise temperature controller with the precision of 0.1 level.
Meanwhile, the flow channel and the glue inlet take the shrinkage into consideration, so that the influence of material shrinkage can be avoided to the greatest extent after molding, the shrinkage of the injection molding material is 0.5%, and the volume of the cavity is increased by 0.5% according to the shrinkage of the material. Meanwhile, in order to ensure uniform glue feeding, four glue feeding ports are respectively distributed at a certain angle on the outer sides of the primary injection molding body and the secondary injection molding body, and meanwhile, a plurality of cables still keep parallel.
Based on the above device, the first embodiment of the invention also provides a molding method using the waterproof injection molding box molding mold for the automobile flat connector, which comprises the following steps:
firstly, processing the die 14 by using high-precision processing equipment, wherein burrs on the inner surface of the die 14 are smaller than 0.1mmm, so that the burrs on the surface of the plastic after injection molding are smaller than 0.1mmm, the damage of the injection molding burrs to the insulating film with the thickness of only 0.05mm can be avoided, the risk of damage of the insulating film is reduced, and the waterproof performance is improved;
secondly, the adhesive tape commonly used at the welding point in the prior art is replaced by high-temperature resistant pasty colloid, namely, high-temperature resistant silica gel paste is uniformly coated on the surface and the periphery of the welding point before injection molding, so that the periphery of the welding point is completely covered, and the adhesive tape is kept stand for 4-5 hours under the environment of 20-30 ℃ until the colloid is completely solidified and then injection molding is carried out. Because the silicone adhesive has strong adhesive force and elasticity and high temperature resistance, the sealing silica gel cannot be damaged due to the impact of injection molding materials in the injection molding process, so that the waterproof performance is fundamentally ensured;
finally, the workpiece subjected to primary injection molding is subjected to secondary injection molding, so that the shape and the process of the workpiece meet the required requirements.
Example two
As shown in fig. 5 and 6, the second embodiment discloses a waterproof injection molding box forming mold for an automotive flat connector, which further includes an auxiliary glue injection device 20, and the mold 14 is installed in the auxiliary glue injection device 20, so that the control of the secondary glue injection of the mold 14 is facilitated.
The auxiliary glue injection device 20 comprises a frame 21, a die 14 is arranged on the frame 21 through a placing plate 22, a guide shaft 31 is arranged on the frame 21, a fixed block 24 is movably arranged on the guide shaft 31 through a bearing 25 and a check ring 26 in a matching manner, the fixed block 24 is arranged on the ground through a bottom plate 23, one end of a stud 28 is arranged on the frame 21 through a screw cap 27 in a threaded manner, the other end of the stud 28 is movably arranged on the bottom plate 23 through a bearing seat assembly 29, and a hand wheel 30 is arranged on the stud 28; the worker rotates the hand wheel 30 to drive the stud 28 to rotate, and drive the rack 21 to move back and forth along the length direction of the stud 28.
The glue injection pipeline is arranged outside the auxiliary glue injection device 20 through a fixed column outside the frame 21, so that the auxiliary glue injection device 20 can drive the die 14 to move relative to the glue injection pipeline; when the workpiece is subjected to primary injection at the primary injection part 12 on the die 14 and then secondary injection is required at the secondary injection part 11, the hand wheel 30 is manually rotated, and the glue inlet 13 of the secondary injection part 11 is driven to be directly below the glue injection pipeline for glue injection, so that the working efficiency is improved, and the consumption of labor force is reduced.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A molding method of a waterproof packaging box molding die for an automobile flat connector comprises a die (14) consisting of an upper die (1) and a lower die (2), a round cable (9) and a flat cable (4) which are arranged in a plurality of grooves (6) formed in the die (14),
characterized in that it also comprises
Positioning protruding points (3) are arranged on the upper die (1) and the lower die (2), and secondary injection molding positioning points (10) are arranged on the primary injection molding position (12) and the secondary injection molding position (11) in the die (14);
the auxiliary glue injection device (20), the mould (14) is installed in the auxiliary glue injection device (20), the auxiliary glue injection device (20) comprises a frame (21), the mould (14) is installed on the frame (21), a guide shaft (31) is installed on the frame (21), a fixed block (24) is movably installed on the guide shaft (31), the fixed block (24) is installed on the ground through a bottom plate (23), one end of a stud (28) is installed on the frame (21) through a screw cap (27) in a threaded manner, the other end of the stud (28) is movably installed on the bottom plate (23) through a bearing seat assembly (29), and a hand wheel (30) is installed on the stud (28);
the lower die (2) is provided with a plurality of positioning bulges (5) at the positions corresponding to the round cables (9) and the flat cables (4), soft fixing pads (8) are arranged at the positions, corresponding to the round cables (9) and the flat cables (4), of the lower die (2), and a position sensor (7) is arranged in a cavity arranged in the positioning bulge (5) at the end part of the corresponding flat cable (4);
a plurality of glue inlets (13) are arranged on the die (14); the glue injection pipeline is arranged outside the auxiliary glue injection device (20) through a fixed column outside the frame (21);
the molding method is realized by the molding die and comprises the following steps:
s1, processing a die (14) by using high-precision processing equipment, wherein burrs on the inner surface of the die (14) are smaller than 0.1mmm;
s2, uniformly coating high-temperature-resistant pasty colloid on the surface and the periphery of a welding spot before injection molding, so that the periphery of the welding spot is completely covered, standing for 4-5 hours at the temperature of 20-30 ℃, and performing injection molding again after the colloid is completely solidified;
s3, after the primary injection molding is finished, the hand wheel (30) is manually rotated, and the glue inlet (13) of the secondary injection molding part (11) is driven to the position right below the glue injection pipeline for secondary injection molding.
2. A forming method according to claim 1, characterized in that the mould (14) is mounted on the shelf (21) by means of a placement plate (22), and the fixed block (24) is movably mounted on the guide shaft (31) by means of a bearing (25) in cooperation with a retainer ring (26).
3. The molding method of claim 1, wherein the high temperature resistant paste is a silicone paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210885782.6A CN115027009B (en) | 2022-07-26 | 2022-07-26 | Waterproof packaging box forming die for automobile flat connector and forming method of waterproof packaging box forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210885782.6A CN115027009B (en) | 2022-07-26 | 2022-07-26 | Waterproof packaging box forming die for automobile flat connector and forming method of waterproof packaging box forming die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115027009A CN115027009A (en) | 2022-09-09 |
| CN115027009B true CN115027009B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210885782.6A Active CN115027009B (en) | 2022-07-26 | 2022-07-26 | Waterproof packaging box forming die for automobile flat connector and forming method of waterproof packaging box forming die |
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| CN (1) | CN115027009B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116572461A (en) * | 2023-05-18 | 2023-08-11 | 乐清市合达电子有限公司 | Rotary injection molding machine and injection molding process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5720316A (en) * | 1994-09-12 | 1998-02-24 | Kwc Ag | Sanitary fitting |
| JP2010123513A (en) * | 2008-11-21 | 2010-06-03 | Furukawa Electric Co Ltd:The | Flat cable and its manufacturing method, and connector of flat cable |
| CN206551442U (en) * | 2016-12-14 | 2017-10-13 | 白玉智 | The long-range and local control monitoring of ejaculator and data storage system |
| CN208643123U (en) * | 2018-04-27 | 2019-03-26 | 青岛波瑞特工程材料有限公司 | A kind of multipoint mode sequential injection glue injecting device |
| CN210838253U (en) * | 2019-09-26 | 2020-06-23 | 汇聚科技（惠州）有限公司 | Glue injection waterproof assembly of automobile connector |
-
2022
- 2022-07-26 CN CN202210885782.6A patent/CN115027009B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5720316A (en) * | 1994-09-12 | 1998-02-24 | Kwc Ag | Sanitary fitting |
| JP2010123513A (en) * | 2008-11-21 | 2010-06-03 | Furukawa Electric Co Ltd:The | Flat cable and its manufacturing method, and connector of flat cable |
| CN206551442U (en) * | 2016-12-14 | 2017-10-13 | 白玉智 | The long-range and local control monitoring of ejaculator and data storage system |
| CN208643123U (en) * | 2018-04-27 | 2019-03-26 | 青岛波瑞特工程材料有限公司 | A kind of multipoint mode sequential injection glue injecting device |
| CN210838253U (en) * | 2019-09-26 | 2020-06-23 | 汇聚科技（惠州）有限公司 | Glue injection waterproof assembly of automobile connector |
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| CN115027009A (en) | 2022-09-09 |
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