CN111113791A - Air conditioner pipeline flange assembly machining process - Google Patents
Air conditioner pipeline flange assembly machining process Download PDFInfo
- Publication number
- CN111113791A CN111113791A CN201911418157.5A CN201911418157A CN111113791A CN 111113791 A CN111113791 A CN 111113791A CN 201911418157 A CN201911418157 A CN 201911418157A CN 111113791 A CN111113791 A CN 111113791A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- injection molding
- flange assembly
- air conditioner
- connecting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
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- 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
- B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
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- 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1671—Making multilayered or multicoloured articles with an insert
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2201/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as reinforcement
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
A processing technology for an air conditioner pipeline flange assembly belongs to the technical field of air conditioner pipeline accessory processing. The invention comprises the following steps: and performing injection molding on the end part of the air-conditioning pipeline twice to enable the end part of the air-conditioning pipeline to coat the flange assembly. According to the invention, one-time injection molding is changed into two-time injection molding, and the pipeline pier head and the connecting plate are respectively injected, so that the production time is shortened, the rapid production is realized, the production operation is convenient, the quality of the flange assembly is easier to control, the product quality is improved, and the production efficiency is improved. Through twice injection molding, the wall thickness of the mold is not limited by the core rod any more, the wall thickness of the mold is increased, and the service life of the mold is greatly prolonged. Through twice injection molding, the flange assembly is divided into two parts, so that the gram weight of the flange assembly is shared by the pipeline pier head and the connecting plate, the injection molding gram weight is reduced, the whole mold can be filled with injection molding raw materials without a press during injection molding, and the product quality is stable.
Description
Technical Field
The invention belongs to the technical field of air conditioner pipeline accessory processing, and particularly relates to a processing technology of an air conditioner pipeline flange assembly.
Background
The air-conditioning refrigerating system is composed of compressor, condenser, liquid storage drier, expansion valve, evaporator and blower, etc. all the components are connected into a closed system by adopting copper pipe (or aluminium pipe) and high-pressure rubber pipe. When the refrigeration system works, the refrigerant circulates in the closed system in different states, and each circulation has four basic processes: 1. and (3) a compression process: the compressor sucks the low-temperature and low-pressure refrigerant gas at the outlet of the evaporator, compresses the refrigerant gas into high-temperature and high-pressure gas and discharges the gas out of the compressor; 2. the heat dissipation process: the high-temperature and high-pressure superheated refrigerant gas enters a condenser, and is condensed into liquid due to the reduction of pressure and temperature, and a large amount of heat is discharged; 3. and (3) throttling process: the refrigerant liquid with higher temperature and pressure passes through the expansion device, the volume is increased, the pressure and temperature are sharply reduced, and the refrigerant liquid is discharged out of the expansion device in a mist shape (fine liquid drops); 4. and (3) heat absorption process: the atomized refrigerant liquid enters the evaporator, so that the boiling point of the refrigerant is far lower than the temperature in the evaporator, the refrigerant liquid is evaporated into gas, a large amount of ambient heat is absorbed in the evaporation process, and then the low-temperature and low-pressure refrigerant vapor enters the compressor. The above process is repeated to achieve the purpose of reducing the temperature of the air around the evaporator. The flange assembly is one of indispensable parts in an air-conditioning refrigeration system, the flange assembly is coated on a copper pipe (or an aluminum pipe), the copper pipe (or the aluminum pipe) is in butt joint assembly with air-conditioning system parts such as an expansion valve, a compressor and the like through the flange assembly, the connection of a pipeline and air-conditioning core parts such as the expansion valve, the compressor and the like is realized, and the smooth flowing of a refrigerant in the air-conditioning system is realized.
As shown in fig. 1-2, the existing flange assembly includes an integrally formed pipeline pier head and a connecting plate, the pipeline pier head is respectively located at two sides of the connecting plate, and the pipeline pier head respectively covers the end portions of an air-conditioning liquid inlet pipe and an air-conditioning liquid outlet pipe, and is used for butt-joint assembly with air-conditioning system components such as an expansion valve and a compressor; the two pipeline pier heads are connected through a connecting plate, so that the air conditioner liquid inlet pipe and the air conditioner liquid outlet pipe are connected into a whole, and the pipelines are convenient to install and distinguish. At present, the flange assembly is processed by adopting a one-time injection molding method, namely, the flange assembly is coated on the air conditioner liquid inlet pipe and the air conditioner liquid outlet pipe through one-time injection molding. Although the production process can complete the preparation of the flange assembly, the production process has a plurality of problems: 1. in order to facilitate the extraction of the core rod, the wall thickness of the die around the core rod is generally very thin (the thinnest part is 2mm), so that high requirements are put on the precision of the die, and the service life of the die is seriously influenced; 2. the injection molding time is too long, about 1 minute, and wastes time and energy; 3. when using and moulding plastics with flange assembly grammes per square metre assorted injection molding machine, need just can fill up whole mould with the raw materials of moulding plastics with the help of the press, product quality is unstable, easily at the surperficial gassing that produces, if the injection molding machine that adopts to be greater than flange assembly grammes per square metre moulds plastics, manufacturing cost greatly increased is unfavorable for the enterprise development.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a processing technology of an air conditioner pipeline flange assembly.
The technical problem of the invention is mainly solved by the following technical scheme: a processing technology of an air conditioner pipeline flange assembly comprises the following steps: and performing injection molding on the end part of the air-conditioning pipeline twice to enable the end part of the air-conditioning pipeline to coat the flange assembly.
Preferably, the method specifically comprises the following steps:
(1) loading the end part of the air-conditioning pipeline in a pipeline pier head mould for injection moulding, and coating the end part of the air-conditioning pipeline with a pipeline pier head after injection moulding;
(2) one side of the air conditioner pipeline, which is coated with the pipeline pier head, is loaded in a connecting plate mold for injection molding, after injection molding, the pipeline pier head is connected with a connecting plate in an injection molding mode, and the pipeline pier head and the connecting plate are matched to form a flange assembly.
Preferably, the raw material for injection molding is reinforced plastic.
Preferably, the injection molding raw material is PA66 plastic containing 30% of glass fiber.
Preferably, the air-conditioning pipeline comprises an air-conditioning liquid inlet pipe and an air-conditioning liquid outlet pipe, and the flange assembly is coated on the air-conditioning liquid inlet pipe and the air-conditioning liquid outlet pipe.
Preferably, the pipeline pier heads are sleeved with the connecting plate, and the two pipeline pier heads are connected through the connecting plate.
Preferably, through holes are formed in the left side and the right side of the connecting plate, a first clamping groove and a second clamping groove are formed in the front side and the rear side of the inner wall of each through hole respectively, at least one limiting rib is arranged on each first clamping groove, a mandrel groove is formed in the middle of the connecting plate, and grooves are formed in the connecting plate on the upper side and the lower side of each mandrel groove.
The invention has the following beneficial effects: according to the invention, one-time injection molding is changed into two-time injection molding, and the pipeline pier head and the connecting plate are respectively injected, so that the production time is shortened, the rapid production is realized, the production operation is convenient, the quality of the flange assembly is easier to control, the product quality is improved, and the production efficiency is improved. Through twice injection molding, the wall thickness of the mold is not limited by the core rod any more, the wall thickness of the mold is increased, and the service life of the mold is greatly prolonged. Through twice injection molding, the flange assembly is divided into two parts, the gram weight of the flange assembly is distributed on the pipeline pier head and the connecting plate, the injection molding gram weight is reduced, during injection molding, the whole mold can be filled with injection molding raw materials without a pressure machine, the product quality is stable, even an injection molding machine with the gram weight smaller than that of the flange assembly can be adopted for injection molding, the production cost is reduced, and the development of enterprises is facilitated.
Drawings
FIG. 1 is a schematic view of a prior art flange assembly;
FIG. 2 is a schematic cross-sectional view of a prior art flange assembly;
FIG. 3 is a schematic view of a construction of the web of the present invention;
FIG. 4 is a schematic cross-sectional view A-A of FIG. 3;
FIG. 5 is a rear view of the web of the present invention;
FIG. 6 is a schematic cross-sectional view of a web of the present invention;
FIG. 7 is a schematic view of one configuration of the flange assembly of the present invention.
In the figure: 1. an air-conditioning liquid inlet pipe; 2. an air conditioner liquid outlet pipe; 3. a pipeline pier head; 4. a connecting plate; 5. a through hole; 6. a first clamping groove; 7. a second clamping groove; 8. limiting ribs; 9. a mandrel slot; 10. a groove; 11. a first clamp ring; 12. a second clamping ring.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): a processing technology for an air conditioner pipeline flange assembly is shown in figures 3-7 and comprises the following steps: and performing injection molding on the end part of the air-conditioning pipeline twice to enable the end part of the air-conditioning pipeline to coat the flange assembly.
The air conditioner pipeline comprises an air conditioner liquid inlet pipe 1 and an air conditioner liquid outlet pipe 2, wherein the air conditioner liquid inlet pipe 1 and the air conditioner liquid outlet pipe 2 are used for being in butt joint assembly with air conditioning system components such as an expansion valve and a compressor. The processing technology specifically comprises the following steps:
(1) loading the end parts of the air conditioner liquid inlet pipe 1 and the air conditioner liquid outlet pipe 2 in a pipeline pier head mold for injection molding, and coating the end parts of the air conditioner liquid inlet pipe 1 and the air conditioner liquid outlet pipe 2 with a pipeline pier head 3 after injection molding;
(2) load the one side that has the cladding of air conditioner feed liquor pipe 1 pipeline pier nose 3, the one side that 2 claddings of air conditioner drain pipes have pipeline pier nose 3 and mould plastics in the connecting plate mould, through moulding plastics the back, the even connecting plate 4 of pipeline pier nose 3 moulding plastics, pipeline pier nose 3 and connecting plate 4 cooperate and constitute the flange assembly.
And before injection molding, the air conditioner liquid inlet pipe 1 and the air conditioner liquid outlet pipe 2 are bent and molded by a pipe bending machine according to production requirements. The raw material for injection molding is reinforced plastic, such as PA66 plastic containing 30% glass fiber. The processing time of the pipeline pier head 3 is about 10-15S, and the processing time of the connecting plate 4 is about 20-30S. Through twice injection molding, the processing time of the flange assembly is far shorter than the existing processing time, so that the rapid production is realized, the production is convenient, the quality of the flange assembly is easier to control, and the quality of the product is better.
The left and right sides of connecting plate 4 is equipped with through-hole 5, both sides are equipped with first clamping groove 6 and second clamping groove 7 respectively around the through-hole 5 inner wall. The end of the pipeline pier head 3 is matched with the through hole 5, the connecting plate 4 is sleeved with the end of the pipeline pier head 3 through the through hole 5, the end of the pipeline pier head 3 is respectively provided with a first clamping ring 11 and a second clamping ring 12, the first clamping ring 11 is matched with the first clamping groove 6, the second clamping ring 12 is matched with the second clamping groove 7, the pipeline pier head 3 clamps the connecting plate 4 in a mode that the first clamping ring 11 is abutted against the first clamping groove 6 and the second clamping ring 12 is abutted against the second clamping groove 7, and the connecting plate 4 is prevented from falling off from the end of the pipeline pier head 3. For preventing taking place to skid between pipeline pier nose 3 and the connecting plate 4, be equipped with a spacing muscle 8 on the first tight groove 6 of clamp at least, be equipped with on the pipeline pier nose 3 with spacing muscle 8 assorted spacing groove (not shown), through the cooperation of spacing muscle 8 and spacing groove, link to each other pipeline pier nose 3 and connecting plate 4. The middle part of the connecting plate 4 is provided with a core rod groove 9 for placing a core rod, the core rod cannot influence the wall thickness of the pipeline pier head 3 by adopting twice injection molding, and the position of the core rod groove 9 can be slightly adjusted according to production requirements. The upper and lower both sides of mandrel groove 9 are in be equipped with recess 10 on the connecting plate 4, this design has not only reduced the use amount of the raw materials of moulding plastics, has reduced the cost of production, has reduced the gram weight of connecting plate 4 moreover, and the connecting plate mould is filled up to the raw materials of being convenient for mould plastics to the connecting plate 4 of being convenient for moulds plastics.
In conclusion, the pipeline pier head and the connecting plate are respectively injected by changing one-time injection molding into two-time injection molding, so that the production time is shortened, the rapid production is realized, the production operation is convenient, the quality of the flange assembly is easier to control, the product quality is improved, and the production efficiency is improved. Through twice injection molding, the wall thickness of the mold is not limited by the core rod any more, the wall thickness of the mold is increased, and the service life of the mold is greatly prolonged. Through twice injection molding, the flange assembly is divided into two parts, the gram weight of the flange assembly is distributed on the pipeline pier head and the connecting plate, the injection molding gram weight is reduced, during injection molding, the whole mold can be filled with injection molding raw materials without a pressure machine, the product quality is stable, even an injection molding machine with the gram weight smaller than that of the flange assembly can be adopted for injection molding, the production cost is reduced, and the development of enterprises is facilitated.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.
Claims (7)
1. The processing technology of the air conditioner pipeline flange assembly is characterized by comprising the following steps: and performing injection molding on the end part of the air-conditioning pipeline twice to enable the end part of the air-conditioning pipeline to coat the flange assembly.
2. The air conditioner pipeline flange assembly machining process according to claim 1, characterized by comprising the following steps:
(1) loading the end part of the air-conditioning pipeline in a pipeline pier head mould for injection moulding, and coating the end part of the air-conditioning pipeline with a pipeline pier head after injection moulding;
(2) one side of the air conditioner pipeline, which is coated with the pipeline pier head, is loaded in a connecting plate mold for injection molding, after injection molding, the pipeline pier head is connected with a connecting plate in an injection molding mode, and the pipeline pier head and the connecting plate are matched to form a flange assembly.
3. The air conditioner pipeline flange assembly processing technology as claimed in claim 1 or 2, wherein the injection molding raw material is reinforced plastic.
4. The air conditioner pipeline flange assembly processing technology of claim 3, wherein the injection molding raw material is PA66 plastic containing 30% glass fiber.
5. The air conditioner pipeline flange assembly machining process as claimed in claim 1 or 2, wherein the air conditioner pipeline comprises an air conditioner liquid inlet pipe and an air conditioner liquid outlet pipe, and the flange assembly is coated by the air conditioner liquid inlet pipe and the air conditioner liquid outlet pipe.
6. The air conditioner pipeline flange assembly machining process according to claim 2, wherein the pipeline pier heads are sleeved with a connecting plate, and the two pipeline pier heads are connected through the connecting plate.
7. The air conditioner pipeline flange assembly machining process according to claim 2 or 6, wherein through holes are formed in the left side and the right side of the connecting plate, a first clamping groove and a second clamping groove are formed in the front side and the rear side of the inner wall of each through hole respectively, at least one limiting rib is arranged on each first clamping groove, a mandrel groove is formed in the middle of the connecting plate, and grooves are formed in the connecting plate on the upper side and the lower side of each mandrel groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418157.5A CN111113791B (en) | 2019-12-31 | 2019-12-31 | Air conditioner pipeline flange assembly machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418157.5A CN111113791B (en) | 2019-12-31 | 2019-12-31 | Air conditioner pipeline flange assembly machining process |
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| Publication Number | Publication Date |
|---|---|
| CN111113791A true CN111113791A (en) | 2020-05-08 |
| CN111113791B CN111113791B (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911418157.5A Active CN111113791B (en) | 2019-12-31 | 2019-12-31 | Air conditioner pipeline flange assembly machining process |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4360841B2 (en) * | 2003-06-13 | 2009-11-11 | 株式会社イノアックコーポレーション | U-shaped pipe joint and manufacturing method thereof |
| CN203215088U (en) * | 2013-05-03 | 2013-09-25 | 无锡同捷汽车设计有限公司 | Refrigeration pipeline interface of automobile air conditioner |
| DE202015103455U1 (en) * | 2015-07-01 | 2015-07-14 | Ti Automotive Engineering Centre (Heidelberg) Gmbh | Connecting element for connecting a pipe end to a component of an air conditioning system |
| CN204471738U (en) * | 2015-01-29 | 2015-07-15 | 浙江伟星新型建材股份有限公司 | A kind of quadric injection mould flange head mould structure |
| CN205239074U (en) * | 2015-12-27 | 2016-05-18 | 安徽中鼎橡塑制品有限公司 | Vehicle air conditioner ventilation pipe joint assembly |
| CN206019084U (en) * | 2016-08-31 | 2017-03-15 | 新昌县天亚制冷配件有限公司 | A kind of air-conditioner refrigeration pipe |
| CN206723645U (en) * | 2016-07-05 | 2017-12-08 | 重庆松芝汽车空调有限公司 | Pipelines of automobile air conditioner upsetting pressure double sealing structure |
| CN207364502U (en) * | 2017-08-31 | 2018-05-15 | 上海仪达空调有限公司 | Air conditioning warm air water inlet pipe and water outlet pipe and vehicle water inlet pipe and water outlet pipe pressing plate connection component |
| CN108916380A (en) * | 2018-08-07 | 2018-11-30 | 南安闽塑卫浴有限公司 | One kind inlaying tube sealing device and its processing technology |
| CN109228387A (en) * | 2018-09-14 | 2019-01-18 | 常州腾龙汽车零部件股份有限公司 | Air-conditioning pipeline processing technology |
-
2019
- 2019-12-31 CN CN201911418157.5A patent/CN111113791B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4360841B2 (en) * | 2003-06-13 | 2009-11-11 | 株式会社イノアックコーポレーション | U-shaped pipe joint and manufacturing method thereof |
| CN203215088U (en) * | 2013-05-03 | 2013-09-25 | 无锡同捷汽车设计有限公司 | Refrigeration pipeline interface of automobile air conditioner |
| CN204471738U (en) * | 2015-01-29 | 2015-07-15 | 浙江伟星新型建材股份有限公司 | A kind of quadric injection mould flange head mould structure |
| DE202015103455U1 (en) * | 2015-07-01 | 2015-07-14 | Ti Automotive Engineering Centre (Heidelberg) Gmbh | Connecting element for connecting a pipe end to a component of an air conditioning system |
| CN205239074U (en) * | 2015-12-27 | 2016-05-18 | 安徽中鼎橡塑制品有限公司 | Vehicle air conditioner ventilation pipe joint assembly |
| CN206723645U (en) * | 2016-07-05 | 2017-12-08 | 重庆松芝汽车空调有限公司 | Pipelines of automobile air conditioner upsetting pressure double sealing structure |
| CN206019084U (en) * | 2016-08-31 | 2017-03-15 | 新昌县天亚制冷配件有限公司 | A kind of air-conditioner refrigeration pipe |
| CN207364502U (en) * | 2017-08-31 | 2018-05-15 | 上海仪达空调有限公司 | Air conditioning warm air water inlet pipe and water outlet pipe and vehicle water inlet pipe and water outlet pipe pressing plate connection component |
| CN108916380A (en) * | 2018-08-07 | 2018-11-30 | 南安闽塑卫浴有限公司 | One kind inlaying tube sealing device and its processing technology |
| CN109228387A (en) * | 2018-09-14 | 2019-01-18 | 常州腾龙汽车零部件股份有限公司 | Air-conditioning pipeline processing technology |
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