CN116714272A - Preparation method of air spring capsule shell assembly, mold and air spring - Google Patents

Preparation method of air spring capsule shell assembly, mold and air spring Download PDF

Info

Publication number
CN116714272A
CN116714272A CN202310699532.8A CN202310699532A CN116714272A CN 116714272 A CN116714272 A CN 116714272A CN 202310699532 A CN202310699532 A CN 202310699532A CN 116714272 A CN116714272 A CN 116714272A
Authority
CN
China
Prior art keywords
bag
main body
skin
inner bag
tooling
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.)
Pending
Application number
CN202310699532.8A
Other languages
Chinese (zh)
Inventor
李耀超
孙华阳
李俊伟
郑文博
冯正杨
王永乐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FAW Group Corp
Original Assignee
FAW Group Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FAW Group Corp filed Critical FAW Group Corp
Priority to CN202310699532.8A priority Critical patent/CN116714272A/en
Publication of CN116714272A publication Critical patent/CN116714272A/en
Pending legal-status Critical Current

Links

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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • B29L2031/721—Vibration dampening equipment, e.g. shock absorbers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/40—Weight reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

The application provides a preparation method of a capsule shell component of an air spring, a die and the air spring, wherein the preparation method of the capsule shell component of the air spring comprises the following steps: adhesive coating, material feeding, inner bag expanding, thermal bonding, pressure maintaining and cooling, inner bag recovering and demolding. The adhesive is coated on the inner surface of the buckling ring, the buckling ring is placed on the positioning surface of the main body die tooling, the bottom surface of the bag skin is in plane contact with the lower seat and is positioned, the inside of the inner bag tooling is inflated through an inflation pipeline at the bottom of the expanding inner bag tooling, the rubber-cord compound fabric of the inner net is contacted with the bag skin and drives the bag skin to expand after being expanded under the action of internal air pressure until the outer surface of the bag skin is attached to the inner surface of the main body die tooling and the inner surface of the buckling ring, thermal bonding is realized, and the inner bag is restored and demolded after pressure maintaining and cooling. The bag skin is driven to be bonded with the buckling ring by applying inflation inside the inflation type inner bag tool, so that the problem that the air spring preparation technology is limited in the prior art is solved.

Description

Preparation method of air spring capsule shell assembly, mold and air spring
Technical Field
The application relates to the technical field of capsule shell components of air springs, in particular to a preparation method of a capsule shell component of an air spring, a die and the air spring.
Background
In recent years, air springs are becoming popular in automotive suspensions, and the air springs are columnar air bags which are formed by buckling and assembling rubber bag covers through buckling rings and other matching pieces and can seal air. The following problems exist in the preparation process of the prior art: (1) Because of the limitation of the caliber of the capsule skin, the large-diameter air spring scheme cannot be prepared; (2) The capsule skin and the related buckling matching piece are positioned inaccurately, so that the quality of the air spring is different; (3) In the design scheme of part of the structure, the outer diameter of the bag skin is lack of constraint, so that the problems of limited performance of the air spring and the like occur
In order to solve the problems, the problems cannot be stopped in the industry at present, and the problems can be dealt with by adopting a compromising or evading mode, such as: (1) The large-caliber capsule shell air spring cannot be prepared, so that the design requirement on the caliber of the air spring is reduced; (2) The capsule skin and the matching piece are positioned inaccurately in the mass production process, and unqualified products can be prevented from flowing into the market only by adding a detection means in the later stage; (3) When the balloon Pi Waijing lacks restraint, the restraint requirements on the balloon skin can be met only by adding an auxiliary positioning assembly or reducing the axial length of the exposed portion, resulting in a significant increase in structural complexity or torsional stiffness.
Disclosure of Invention
The application mainly aims to provide a preparation method of a capsule shell component of an air spring, a die and the air spring, so as to solve the problem that the preparation technology of the air spring in the prior art is limited.
In order to achieve the above object, according to one aspect of the present application, there is provided a method for manufacturing a bladder skin assembly of an air spring, comprising the steps of: and (3) adhesive coating: coating the inner surface of the buckling ring with an adhesive; and (3) material throwing: at least one buckling ring is put into the main body die tooling, so that the buckling ring is placed at the positioning surface of the main body die tooling, a bag skin is put into the outer part of the expanding inner bag tooling, and the bottom surface of the bag skin is contacted with the upper plane of the lower seat and positioned; inner bag expansion type: the inner part of the inner bag tooling is inflated through an inflation pipeline at the bottom of the expanding inner bag tooling, and after the rubber-cord compound fabric of the inner net in the inner bag tooling is inflated under the action of internal air pressure, the rubber-cord compound fabric is contacted with the bag skin and drives the bag skin to expand until the outer surface of the bag skin is attached to the inner surface of the main body die tooling and the outer surface of the bag skin is attached to the inner surface of the buckling ring, and then the inflation is stopped; and (3) thermal bonding: the main body die tooling is heated through the heating component so as to transfer heat to the buckling ring; pressure maintaining and cooling: continuously maintaining the gas pressure in the expanding inner bag tooling for a preset time, and air-cooling the main body die tooling; recovering and demolding the inner bag: and exhausting gas in the expanding inner bag tool, and taking out the bag skin sample piece with the buckling ring to obtain the bag skin assembly.
Further, in the material throwing step, two buckling rings are thrown into the main body die tooling, and the two buckling rings are placed on the positioning surface of the main body die tooling at intervals along the height direction of the main body die tooling.
Further, in the step of heat bonding, it includes: and controlling the main body die tooling to heat until the temperature of the contact surface of the buckling ring and the capsule shell reaches T1, wherein T1 is more than or equal to 100 ℃.
Further, in the step of heat bonding, it includes: after the temperature of the contact surface of the buckling ring and the capsule shell is detected to reach T1, the heating assembly is kept to heat the main body die tool.
Further, the duration of heating operation of the heating assembly on the main die tool is kept to be H1, wherein H1 is more than or equal to 10min.
Further, in the pressure-maintaining cooling step, it includes: the preset time for continuously maintaining the gas pressure in the expanding inner bag tool is H2, wherein the H2 is more than or equal to 30min.
Further, in the pressure-maintaining cooling step, further comprising: and in the process of continuously maintaining the gas pressure in the expanding inner bag tool, controlling the temperature of the heating assembly for heating the main body die tool so as to reduce the temperature of the main body die tool.
Further, in the pressure-maintaining cooling step, further comprising: and controlling the temperature of the heating assembly to be reduced to T2 for the main body die tool, wherein T2 is less than or equal to 50 ℃.
According to another aspect of the present application, there is provided an air spring comprising a cap assembly obtained by the method of manufacturing a cap assembly of an air spring as described above.
According to another aspect of the present application, there is provided a mold for processing the above-described capsule skin assembly, the mold comprising: the lower seat is provided with a capsule skin positioning surface; the inner bag is connected with the lower seat at one end, the plug is arranged at the other end of the inner bag, the bag skin positioning surface is arranged along the circumferential direction of the inner bag, the bottom of the lower seat is provided with a first air passage communicated with the inner cavity of the inner bag, and the inner bag is used for placing the bag skin to be adhered to the buckling ring; the main body die tooling is arranged along the circumferential direction of the inner bag, at least one positioning surface is arranged on the inner circular surface of the main body die tooling, the positioning surface is used for placing the buckling ring, and a heating assembly and a second air passage are arranged in the main body die tooling; the inner bag can drive the bag skin to move to the inner circular surface of the main body die tool by introducing gas with preset pressure into the first gas path, so that part of the outer surface of the bag skin is contacted with the inner surface of the buckling ring, and the other part of the outer surface of the bag skin is contacted with the inner circular surface of the main body die tool.
By applying the technical scheme of the application, the diameter size of the capsule skin port at the initial stage of assembly is expanded to be consistent with the size of the buckling ring by applying the capsule skin outer ring bonding process, so that the accurate positioning of the capsule skin and the buckling ring is realized, the outer diameter of the capsule skin is limited, and the problem of the limitation of the air spring preparation technology in the prior art is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 illustrates a flow diagram of an embodiment of a method of making a capsule skin assembly of an air spring according to the present application;
FIG. 2 is a schematic structural view showing an example of a manufacturing mold of a manufacturing method of a cover assembly of an air spring according to the present application;
FIG. 3 shows a schematic structural view of a first embodiment of a method of manufacturing a capsule skin assembly of an air spring according to the present application;
FIG. 4 shows a schematic structural view of a second embodiment of a method of manufacturing a capsule skin assembly of an air spring according to the present application;
FIG. 5 shows a schematic structural view of an embodiment of a capsule skin assembly of an air spring according to the present application;
fig. 6 shows a schematic structural view of a third embodiment of a method for manufacturing a capsule skin assembly of an air spring according to the present application.
Wherein the above figures include the following reference numerals:
10. a lower seat; 11. a capsule skin positioning surface; 12. a first air path;
20. an inner bag;
30. a main body die tool; 31. a positioning surface; 32. a second air path;
40. a heating assembly; 41. a temperature sensor;
50. a capsule skin;
60. a buckling ring.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.
Referring to fig. 1 to 6, a method of manufacturing a bladder assembly of an air spring is provided according to an embodiment of the present application.
Specifically, the preparation method of the capsule shell component of the air spring comprises the following steps: and (3) adhesive coating: and (5) coating the inner surface of the buckling ring with an adhesive. And (3) material throwing: at least one buckling ring is put into the main body die tooling, so that the buckling ring is placed at the positioning surface of the main body die tooling, the bag skin is put into the expanding inner bag tooling, and the bottom surface of the bag skin is contacted with the upper plane of the lower seat and positioned. Inner bag expansion type: through the inflation line of the bottom of the expansion type inner bag tooling, the inside of the inner bag tooling is inflated, after the rubber-cord compound fabric of the inner net of the inner bag tooling is inflated under the action of internal air pressure, the rubber-cord compound fabric is contacted with the bag skin and drives the bag skin to expand until the outer surface of the bag skin is attached to the inner surface of the main body die tooling, and the outer surface of the bag skin is attached to the inner surface of the buckling ring, and then the inflation is stopped. And (3) thermal bonding: the main body die tooling is heated through the heating assembly so as to transfer heat to the buckling ring. Pressure maintaining and cooling: and continuously maintaining the gas pressure in the expanding inner bag tooling for a preset time, and air-cooling the main body die tooling. Recovering and demolding the inner bag: and exhausting gas in the expanding inner bag tool, and taking out the bag skin sample piece with the buckling ring to obtain the bag skin assembly.
With reference to fig. 1 to 4, in this embodiment, the inner inflatable bag fixture is used to inflate and expand the bag skin and the buckling ring to bond, so that the diameter of the port of the bag skin at the initial stage of assembly is expanded to be consistent with the size of the buckling ring, the problem that the air spring preparation technology is limited in the prior art is solved, the positioning accuracy of the bag skin and the buckling ring is improved, the technical effect that the outer diameter of the bag skin can be limited without increasing the structural complexity and the structural rigidity is achieved, and a more practical air spring preparation technology is provided.
In the material feeding step, two buckling rings (shown in fig. 3 and 5) are fed into the main body die tooling, and the two buckling rings are placed on the positioning surface of the main body die tooling at intervals along the height direction of the main body die tooling. At the moment, the relative positions of the expanding inner bag tool and the main body die tool are fixed, the buckling rings are put into the main body die tool, and the two buckling rings can be positioned by means of the positioning surface in the main body die tool. In this embodiment, only the case that the buckling rings are metal rings is specifically described, and after the two buckling rings are bonded with the bag skin, the expansion of the initial inner diameter of the bag skin can be realized, so that the bag skin assembly can adapt to the scheme of the upper air chamber with a large diameter, and the application range of the bag skin assembly is greatly widened. Meanwhile, after the relative positioning of the buckling ring and the capsule skin is finished at the initial stage, the positioning and fixing are not needed in the subsequent process links, the problem that accurate positioning in the assembly process is difficult to realize due to softer capsule skin materials is avoided, and the practicability of the capsule skin assembly is improved.
In the step of thermal bonding, it includes: and controlling the main body die tooling to heat until the temperature of the contact surface of the buckling ring and the capsule shell reaches T1, wherein T1 is more than or equal to 100 ℃. In this embodiment, the adhesive is applied to the inner surface of the buckling ring in the prior art, so that the adhesive can achieve an optimal effect in a specific temperature range (100-120 ℃) below the vulcanization temperature, and thus, the buckling ring and the capsule skin can be bonded well.
In the step of thermal bonding, it includes: after the temperature of the contact surface of the buckling ring and the capsule shell is detected to reach T1, the heating assembly is kept to heat the main body die tool. The arrangement can promote the buckling ring and the capsule shell to be stably bonded within the optimal effect range of the adhesive.
And keeping the duration of heating operation of the heating assembly on the main body die tooling as H1, wherein H1 is more than or equal to 10min. In this embodiment, the heating assembly heats the main body mold, and the heat is transferred to the buckling ring and then to the contact surface of the buckling ring and the capsule shell, so that the temperature of the contact surface is raised to 110 ℃ and kept for 10 minutes. The setting ensures that the buckling ring and the capsule skin are positioned relatively, positioning and fixing are not needed in the subsequent process links, the problem that accurate positioning in the assembly process is difficult to realize due to softer capsule skin materials is avoided, and the practicability of the capsule skin assembly is improved.
The pressure-maintaining cooling step comprises the following steps: the preset time for continuously maintaining the gas pressure in the expanding inner bag tool is H2, wherein the H2 is more than or equal to 30min. In the embodiment, in the pressure maintaining and cooling process, the gas pressure in the expanding inner bag tooling is continuously maintained, and the die is subjected to air cooling for 30min, so that the inner bag is effectively prevented from contracting, and the ideal inner bag product quality control is realized.
In the pressure-maintaining cooling step, further comprising: and in the process of continuously maintaining the gas pressure in the expanding inner bag tool, controlling the temperature of the heating assembly for heating the main body die tool so as to reduce the temperature of the main body die tool. The temperature of the main die tooling can be controlled while air cooling is performed, and the cooling step is completed.
In the pressure-maintaining cooling step, further comprising: and controlling the temperature of the heating assembly to be reduced to T2 for the main body die tool, wherein T2 is less than or equal to 50 ℃. In the embodiment, the pressure of the gas in the expanding inner bag tooling is continuously maintained, the die is subjected to air cooling for 30min, the temperature is reduced to be below 50 ℃, the gas in the expanding inner bag tooling is discharged in the inner bag recovering and demolding process, the tooling is recovered to the original size and shape, and meanwhile, the outer adhesive ring bag Pi Yangjian can be taken out to finish demolding. This arrangement ensures that the bladder will recover and release in the optimum condition.
In another embodiment of the present application, an air spring is provided, including a capsule shell assembly, where the capsule shell assembly is obtained by the method for manufacturing the capsule shell assembly of the air spring in the foregoing embodiment. The air spring can be a large-caliber capsule shell air spring which cannot be prepared in the prior art, and compared with the air spring produced in the prior art, the air spring has the advantages of higher precision, better quality and higher qualification rate.
In another embodiment of the present application, there is also provided a mold for processing the bladder 50 assembly of the above embodiment, the mold including the lower seat 10, the inner bladder 20, and the main body mold tooling 30. The lower seat 10 has a bladder positioning surface 11. One end of the inner bag 20 is connected with the lower seat 10, the other end of the inner bag 20 is provided with a plug 22, the bag skin positioning surface 11 is arranged along the circumferential direction of the inner bag 20, the bottom of the lower seat 10 is provided with a first air passage 12 communicated with the inner cavity of the inner bag 20, and the inner bag 20 is used for placing the bag skin 50 to be adhered to the buckling ring 60. The main body die tooling 30 is arranged along the circumferential direction of the inner bag 20, at least one positioning surface 31 is arranged on the inner circular surface of the main body die tooling 30, the positioning surface 31 is used for placing the buckling ring 60, and a heating assembly 40 and a second air channel 32 are arranged in the main body die tooling 30. Wherein, the gas with preset pressure is introduced into the first air passage 12 to enable the inner bag 20 to drive the bag cover 50 to move to the inner circular surface of the main body mold tooling 30, so that part of the outer surface of the bag cover 50 contacts with the inner surface of the buckling ring 60, and the other part of the outer surface of the bag cover 50 contacts with the inner circular surface of the main body mold tooling 30.
In the above embodiment, the main body mold tooling 30 has a positioning surface 31 (shown in fig. 2), a heating element 40 and a temperature monitoring point set (shown in fig. 6). The width of the positioning surface 31 is slightly smaller than the thickness (0.8 mm plus or minus 0.1 mm) of the buckling ring 60, so that the inner side of the buckling ring 60 can protrude out of the local inner surface of the main body die while being positioned. In this embodiment, only the case where the heating element 40 is an annular matrix heating source is specifically described, the edge of the annular matrix heating source is 10mm away from the inner surface of the mold, the number of the annular matrix heating sources is determined according to the diameter size of the inner circle of the main mold, and at least 10 power heating sources above 20kw are required to be uniformly arranged along the axial direction in order to ensure the temperature rising speed and smaller temperature fluctuation tolerance. The temperature monitoring point group comprises temperature sensors 41, wherein the temperature sensors 41 are arranged in the main body die tooling 30 close to the mounting position of the buckling ring 60, and at least 4 temperature sensors are uniformly arranged along the circumferential direction of the main body die tooling 30. The expanding inner bag tooling consists of a rubber-cord composite fabric, an upper plug and a lower seat 10. The inflatable inner bag needs to ensure good air tightness and can support the inflation of more than 10bar without explosion or leakage. The second air passage 32 is arranged, so that the expansion inner bag forms negative pressure through the second air passage 32 in the expansion process, and the phenomenon of air nest is avoided due to partial air retention when the bag cover 50 is attached to the outer side main body die tooling 30. The upper surface of the lower seat 10 of the inner bag tool is provided with a bag skin positioning surface 11, so that the bag skin positioning is better realized. Through the technical scheme of the embodiment, the capsule shell 50 assembly with better quality and higher qualification rate in the embodiment can be processed, and the application field of the capsule shell 50 assembly is widened.
In another embodiment of the present application, there is also provided a bladder skin with an outer ring bonding process, where the bladder skin is a bladder skin in the bladder skin assembly produced in the foregoing embodiment, and the bladder skin has the following application scenarios:
1) The outer ring bonding process bag skin is applied to the upper point buckling ring, after the upper buckling ring is bonded with the bag skin, the initial inner diameter of the bag skin is enlarged, the method can adapt to a large-diameter upper air chamber scheme, the application range of the bag skin is greatly expanded, meanwhile, the relative positioning is finished between the upper buckling ring and the bag skin at the initial stage, the positioning and fixing in the subsequent process link are not needed, and the problem that the accurate positioning of the bag skin in the assembly process is difficult to realize due to softer material of the bag skin is avoided.
2) The outer ring bonding process bag skin is applied to the outer casing support ring, so that the scheme of the inner support ring and the corresponding assembly process are omitted, and the problem that accurate positioning of the bag skin in the assembly process is difficult to realize due to softer bag skin materials is avoided.
3) The outer ring bonding process capsule shell is applied to the capsule shell expansion limiting ring, so that the expansion outer diameter of the capsule shell can be well limited, and other auxiliary components are not needed to position the limiting ring. In the prior art, the stop collar of the non-adhesive scheme needs to be additionally provided with a layer of positioning rubber sleeve to ensure the position of the stop collar, but if the rubber sleeve is additionally provided, the abrasion of the rubber sleeve and the bag skin can be caused, so that the scheme cannot be realized all the time, and the technical scheme can be realized in the embodiment.
From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:
after the outer surface of the bag cover is adhered to the buckling ring, the diameter of the bag cover port at the initial stage of assembly is expanded to be consistent with the size of the buckling ring, the expansion of the bag cover port at the initial stage can ensure that the assembly process is smoothly carried out when the large-caliber upper air chamber is adapted, and the preparation of a large-caliber air spring scheme can be realized.
The bonding of the buckling ring and the capsule skin is carried out in the die in the early stage, so that the relative position relation of the buckling ring and the capsule skin can be accurately ensured, the capsule skin is not required to be positioned and fixed in the assembly process, and the accurate positioning of the capsule skin in the assembly process is difficult to realize because the capsule skin is softer, so that the bonding process in the die in the early stage can well ensure the assembly positioning precision.
Through the implementation of the process, the bag skin can be restrained at any position required by design without depending on other auxiliary positioning components or cutting the axial exposed length of the bag skin in the design scheme, the structure of the air spring can be simplified, the performance of the air spring is ensured, and the problem that the air spring preparation technology in the prior art is limited is solved.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., indicate that the particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application, as generally described. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the application.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A method for manufacturing a bladder assembly of an air spring, the method comprising the steps of:
and (3) adhesive coating: coating the inner surface of the buckling ring with an adhesive;
and (3) material throwing: at least one buckling ring is put into a main body die tooling, so that the buckling ring is placed at the positioning surface of the main body die tooling, a bag skin is put into the outer part of an expanding inner bag tooling, and the bottom surface of the bag skin is contacted with the upper plane of a lower seat and positioned;
inner bag expansion type: the inner part of the inner bag tooling is inflated through an inflation pipeline at the bottom of the expanding inner bag tooling, and after the rubber-cord compound fabric of the inner net in the inner bag tooling is inflated under the action of internal air pressure, the rubber-cord compound fabric is contacted with the bag skin and drives the bag skin to expand until the outer surface of the bag skin is attached to the inner surface of the main body die tooling and the outer surface of the bag skin is attached to the inner surface of the buckling ring, and then the inflation is stopped;
and (3) thermal bonding: the main body die tooling is heated through the heating component so as to transfer heat to the buckling ring;
pressure maintaining and cooling: continuously maintaining the gas pressure in the expanding inner bag tooling for a preset time, and air-cooling the main body die tooling;
recovering and demolding the inner bag: and exhausting gas in the expanding inner bag tool, and taking out the bag skin sample piece with the buckling ring to obtain the bag skin assembly.
2. The method according to claim 1, wherein in the material feeding step, two pressing rings are fed into the main body mold tool, and the two pressing rings are placed on the positioning surface of the main body mold tool at intervals along the height direction of the main body mold tool.
3. The method of manufacturing according to claim 1, wherein in the step of thermal bonding, comprising:
and controlling the main body die tooling to heat until the temperature of the contact surface of the buckling ring and the capsule shell reaches T1, wherein T1 is more than or equal to 100 ℃.
4. A method of manufacturing according to claim 3, wherein in the step of thermal bonding, it comprises:
after the temperature of the contact surface of the buckling ring and the capsule shell is detected to reach T1, the heating assembly is kept to heat the main body die tool.
5. The method of claim 4, wherein the length of time that the heating assembly is maintained to heat the main body mold tooling is H1, wherein H1 is greater than or equal to 10 minutes.
6. A method of manufacturing according to claim 3, characterized in that in the pressure-maintaining cooling step, it comprises:
the preset time for continuously maintaining the gas pressure in the expanding inner bag tool is H2, wherein the H2 is more than or equal to 30min.
7. The method according to claim 6, further comprising, in the pressure-maintaining cooling step:
and in the process of continuously maintaining the gas pressure in the expanding inner bag tool, controlling the temperature of the heating assembly for heating the main body die tool so as to reduce the temperature of the main body die tool.
8. The method according to claim 6, further comprising, in the pressure-maintaining cooling step:
and controlling the temperature of the heating assembly to be reduced to T2 for the main body die tool, wherein T2 is less than or equal to 50 ℃.
9. An air spring comprising a capsule assembly, characterized in that it is obtained from a method of manufacturing a capsule assembly of an air spring according to any one of claims 1 to 8.
10. A mold for processing the bladder assembly of claim 9, the mold comprising:
a lower seat (10), wherein the lower seat (10) is provided with a capsule skin positioning surface (11);
the inner bag (20), one end of the inner bag (20) is connected with the lower seat (10), a plug (22) is arranged at the other end of the inner bag (20), the bag skin positioning surface (11) is arranged along the circumferential direction of the inner bag (20), a first air passage (12) communicated with the inner cavity of the inner bag (20) is arranged at the bottom of the lower seat (10), and the inner bag (20) is used for placing a bag skin (50) to be adhered to the buckling ring;
the main body mold tool (30), the main body mold tool (30) is arranged along the circumferential direction of the inner bag (20), at least one positioning surface (31) is arranged on the inner circular surface of the main body mold tool (30), the positioning surface (31) is used for placing a buckling ring, and a heating assembly (40) and a second air passage (32) are arranged in the main body mold tool (30);
the inner bag (20) drives the bag cover (50) to move to the inner circular surface of the main body die tool (30) by introducing gas with preset pressure into the first gas path (12), so that part of the outer surface of the bag cover (50) is contacted with the inner surface of the buckling ring, and the other part of the outer surface of the bag cover (50) is contacted with the inner circular surface of the main body die tool (30).
CN202310699532.8A 2023-06-13 2023-06-13 Preparation method of air spring capsule shell assembly, mold and air spring Pending CN116714272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310699532.8A CN116714272A (en) 2023-06-13 2023-06-13 Preparation method of air spring capsule shell assembly, mold and air spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310699532.8A CN116714272A (en) 2023-06-13 2023-06-13 Preparation method of air spring capsule shell assembly, mold and air spring

Publications (1)

Publication Number Publication Date
CN116714272A true CN116714272A (en) 2023-09-08

Family

ID=87869369

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310699532.8A Pending CN116714272A (en) 2023-06-13 2023-06-13 Preparation method of air spring capsule shell assembly, mold and air spring

Country Status (1)

Country Link
CN (1) CN116714272A (en)

Similar Documents

Publication Publication Date Title
US6682687B1 (en) Method for manufacturing a tire
EP3397465B1 (en) Method of forming non-pneumatic tire including pressure application between an intermediate section and an outer shear band ring
US3076737A (en) Corrugated annularly reinforced hose and method for its manufacture
CN101484303B (en) Method and apparatus for manufacturing aerated tyre
JP2001524891A (en) Method and apparatus for manufacturing a pneumatic tire in an improved tire mold
KR102390899B1 (en) Flexible conductive element and method of shaping of flexible conductive element
US2962757A (en) Method of and apparatus for molding and vulcanizing a fabric reinforced rubber air spring bellows
CN116714272A (en) Preparation method of air spring capsule shell assembly, mold and air spring
CN107718576A (en) The ring piecemeal assembly method of insert nozzle larynx lining
KR20080038257A (en) Tire vulcanizer
JP2013163285A (en) Folding method of resin tube and method of manufacturing resin tube covered roll
JP2003340824A (en) Method for vulcanizing and molding tire, and mold for molding tire
JP6233453B1 (en) Method and apparatus for attaching sound absorbing material to inner surface of tire
JP5105012B1 (en) Rubber roll manufacturing apparatus and rubber roll manufacturing method
JP2007030273A (en) Manufacturing method of rubber cylindrical body
JPH01278317A (en) Molding method and assmblying method for unvulcanized elastomer molded product and its device
EP2295231B1 (en) Method for securing a tread to a tire casing
US20220118720A1 (en) Methods and apparatuses for forming composite parts from multi-ply prepreg composite charges
JP4474263B2 (en) Tire manufacturing method and green tire molding apparatus
JPH1034751A (en) Patch vulcanizing method for large rubber product
JP2018118421A (en) Pneumatic tire manufacturing method and separation device
KR20190055458A (en) Device of matching bladder center and green-case center
JP5675572B2 (en) In-mold molding method and resin molded product formed by the method
JP2010030242A (en) Production process of tire
EP2677154B1 (en) Line system for a fluid, method of manufacturing a line system and apparatus for manufacturing a line system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination