WO2013010456A1 - Machine à mouler par injection de la métallurgie des poudres à arbres multiples - Google Patents

Machine à mouler par injection de la métallurgie des poudres à arbres multiples Download PDF

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Publication number
WO2013010456A1
WO2013010456A1 PCT/CN2012/078602 CN2012078602W WO2013010456A1 WO 2013010456 A1 WO2013010456 A1 WO 2013010456A1 CN 2012078602 W CN2012078602 W CN 2012078602W WO 2013010456 A1 WO2013010456 A1 WO 2013010456A1
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WO
WIPO (PCT)
Prior art keywords
mold
mould
main board
powder metallurgy
cylinder
Prior art date
Application number
PCT/CN2012/078602
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English (en)
Chinese (zh)
Inventor
刘军
Original Assignee
Liu Jun
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 Liu Jun filed Critical Liu Jun
Publication of WO2013010456A1 publication Critical patent/WO2013010456A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding

Definitions

  • the invention relates to a powder metallurgy molding machine, in particular to a multi-axis powder metallurgy injection molding machine which can quickly open and close a mold and is suitable for producing high precision and complicated powder metallurgy products.
  • Powder metallurgy forming technology the basic process is: firstly, the solid powder and the organic binder are uniformly kneaded, and then heated and plasticized, pressed into the cavity by the powder metallurgy molding machine to form and solidify, and then removed. The binder and sintering are densified to obtain the final product.
  • the product has the characteristics of high precision, uniform organization, excellent performance and low production cost. Its products are widely used in electronic information engineering, biomedical devices, office equipment, automobiles, machinery, hardware, weapons and aerospace industries; therefore, It is widely believed that the development of this technology will lead to a revolution in the forming and processing technology of parts, and is known as "the hottest part forming technology of today" and "forming technology of the 21st century".
  • the traditional powder metallurgy molding machine has two molds, one of which is a fixed mold and a movable mold.
  • the movable mold is reciprocated along the guide column under the driving of the oil cylinder, and the function of closing the mold and opening the mold is completed, and only one mold opening direction is obtained.
  • this method is commonly used in powder metallurgy molding.
  • it still has many shortcomings, such as high proportion of finished products and scraps, slow production speed (relative to all-round mold metallurgy molding machine), easy to produce burrs, high mold manufacturing costs, and high energy consumption. More importantly, it is extremely difficult to produce small, precise and three-dimensionally complex parts, and the production cost and mold cost are extremely high.
  • the object of the present invention is to overcome the deficiencies of the above technology and to provide a multi-axis powder metallurgy injection molding machine with high production efficiency, simple operation, high efficiency, stable production, high product quality, complicated three-dimensional shape and low production cost.
  • the technical solution adopted by the present invention to solve the technical problem is: a base body, a main board is disposed above, and four sets of guiding modes are connected to form a whole body, which is installed on the front surface of the main board, and is erected on the periphery of the front center hole of the main board.
  • a ten-slot chute mold assembly, an injection device assembly, is placed on the back of the main plate for injecting pressurized powder metallurgical material into the mold cavity of the sliding mold when the sliding mold is in the closed position.
  • the main board includes a cooling system for lowering the temperature of the main board, and is fixed on the back of the main board by a cover plate, and the front surface of the main board is used for fixing the base support, the toggle joint mechanism assembly, the installation of the cross slide mold base and the mold slippery.
  • the block, the back of the motherboard is used to install the relevant components of the injection system, and the hole in the middle portion of the main plate is used to fit the nozzle of the injection device to the mold carried in the 'Ten' sliding block mold base.
  • the guiding device comprises a basic support, a toggle connecting rod mechanism, a stop block, a cylinder, a hydraulic cylinder and a position detecting device;
  • the hydraulic cylinder is fixed on the central support at the central hole of the locking mechanism, each elbow
  • the link mechanism is locked with the hydraulic cylinder fixed on the base support by the locking mechanism, and is respectively pivotally connected with the cylinder shaft and each slider mold by a pin, and the slider mold is placed in the 'ten' model frame In the chute, and by the interlocking of the cylinder and the toggle link mechanism, the reciprocating linear sliding in the chute completes the function of closing and opening the mold, and at the same time, the oil connected to the other end of the toggle link mechanism
  • the pressure cylinder applies an additional clamping force to the mold; each stop block is fixed on the base support to ensure that the elbow links are linearly arranged longitudinally during the clamping to provide a stable support for the slider
  • the mold is always in a stable mold clamping state.
  • the toggle toggle mechanism assembly is composed of a link adjustment mechanism, a rear link, an intermediate link, a front link and a connecting pin, and the link adjusting mechanism is fixed to the base by a threaded sleeve and a locking mechanism.
  • the hydraulic cylinder shaft on the other side of the support is connected; one end of the front link is pivotally connected to a sliding mold by a pin, and the other end is pivotally connected with the cylinder shaft by a pin; each component of the toggle link is pinned Pivot connection.
  • the cross slide mold assembly comprises a mold frame of 'ten' four-way four slides, two mold covers, two positioning sleeves and four guide columns, at least two sets of slider molds in the mold base The chute is guided, and the cross slide mold assembly is accurately positioned and fixed on the main board through the positioning sleeve and the guide post.
  • the mechanical structure of the multi-axis powder metallurgy injection molding machine can conveniently install, replace and adjust the driving device, the toggle linkage mechanism component and the position detecting device.
  • the slider molds of the multi-axis powder metallurgy injection molding machine are closed under the linkage of the driving device and the toggle link mechanism according to the set closing procedure, and then the injection system enters the injection step, and the screw is in Under the action of the injection drive device, the powdered metallurgy material heated and plasticized in the storage chamber is injected into the cavity of the mold through the nozzle at high speed and high pressure, and after holding, cooling, solidifying and setting, according to the set order
  • the mold is opened, and the product is fed into the drum through the demolding and blowing mechanism, and the next cycle is started.
  • the process is simple, stable and efficient.
  • Various temperature sensors and position sensors in the control system detect the position signals of each component and the temperature signals of the injection system in real time, and transmit these signals to the control system.
  • the control system realizes the coordinated action of various components and mechanisms of the system according to a pre-programmed program. .
  • the multi-axis powder metallurgy injection molding machine greatly improves the production efficiency of the powder metallurgy product, makes the operation simpler, safer and more efficient, improves the production stability and the quality of the product, and reduces the manufacturing cost of the product. It is suitable for the production of powder metallurgy products with high precision, complex three-dimensional shape, uniform structure and excellent performance.
  • Fig. 1 is a side cross-sectional view of the present invention.
  • Fig. 2 is a front elevational view showing the components of the mold guiding device and the molds which are mounted on the main board in a mold opening state.
  • Fig. 3 is a front elevational view showing the components of the mold guiding device and the molds which are mounted on the main board in a mold clamping state.
  • Figure 4 is a front elevational view of a single guided mode device.
  • Figure 5 is a cross-sectional view taken along line A-A of Figure 4.
  • Figure 6 is a side view in the direction B of Figure 4.
  • the multi-axis powder metallurgy injection molding machine has a body 19 that is integral with the structural frame 10. There is a power and control system inside the base body (it is not the subject of this new type of claim, so it is only for implementation instructions here).
  • a main board 2 a cooling tube 2b mounted on the back thereof, is sealed by a cover 2a which is obliquely placed on the structural frame 10.
  • the base support, the toggle link mechanism, the cross slide formwork, and the like are mounted on the front surface of the main board 2, and the base support and the toggle link mechanism will be described later with reference to FIGS. 5 and 7.
  • the injection system assembly 22 is composed of a device such as kneading, thermoplasticizing, and injection driving (which is not the subject of the present invention, and therefore is only used as an application specification), and is mounted on the column support 21 in the displacement cylinder 20 Under the action of the reciprocating movement along the guide post 21, the advancement or retreat of the injection seat is realized, and the nozzle is ensured to be in close contact with the mold through the central hole of the main plate 2, thereby generating an injection seat pressure capable of closing the melt.
  • a device such as kneading, thermoplasticizing, and injection driving
  • FIGs 2 through 4 a completed mold guiding device system is shown.
  • the four base supports 1a, 1b, 1c, and 1d are integrally connected to each other, and are mounted on the front surface of the main board 2 by screws 12 and positioning keys.
  • the four sets of toggle link assembly 7 are fixed to the shaft of the hydraulic cylinder 8 by a locking mechanism through a threaded sleeve on the base support.
  • the four cylinders are fixed on the base support by the L-shaped connecting plate 23, and the shaft is pivotally connected by the pin 14 and the toggle link, and the cylinder and the hydraulic cylinder are controlled by the control system.
  • the cross-slot formwork is fixed to the main plate 2 by a cylindrical pin 5, and the slider mold is placed in the chute of the cross-slot formwork and is pivotally connected to the corresponding toggle link by the pin 15.
  • Two cover plates 17 lock the cross slide formwork to the main board and ensure a precise sliding position of the slider mold. In this way, the operation of the cylinder drives the slider mold by interlocking the toggle link mechanism to complete the opening-closing motion.
  • the hydraulic cylinder 6 intervenes after the mold is closed, applying an additional clamping force.
  • the toggle link mechanism includes a threaded sleeve 8c connecting the threaded rod, the rear link 7a, the two intermediate webs 7b, and the front link 7c.
  • the connecting rod assemblies are rotatably connected by pins 15 to form a toggle link.
  • one end of the front link 7c is pivotally connected to a sliding die by a pin, and the other end is pivotally connected to the shaft of the cylinder by a pin 14.
  • the threaded sleeve 8c is fixed in a corresponding threaded hole in the base bracket 1, and the hydraulic cylinder 8 is fixed at the center of the threaded hole on the base bracket, and the threaded hole of the rear link 7a is bent by the screw 8b and the lock nut.
  • the link mechanism is fixed to the hydraulic cylinder shaft 8a.
  • a stopper 9 fixed to the base bracket 1 serves to ensure that the toggle link is aligned in the mold clamping to ensure a precise molding position of the sliding mold, and allows a major portion of the locking force to be applied to the base bracket Upper, and counterbalance the cavity back pressure at the time of injection.
  • the cylinder 3 is fixed to the attachment 23b, and the pin 23c is rotatably coupled to the L-shaped connecting plate 23, and the L-shaped connecting plate 23 to which the cylinder 3 is mounted is fixed to the base bracket 1 by screws 23a.
  • the position of the adjusting screw 23a can adjust the position of the cylinder 3, thereby adjusting the opening distance of the corresponding slider mold.
  • the driving devices When the slider mold reaches the clamping position by the action of the four sets of guiding modes, the driving devices maintain a considerable pressure at this time, ensuring that the elbow links are arranged in a straight line (as shown in FIG. 4) to have a stable support.
  • the action, such clamping force and the instantaneous diffusing force generated by the cavity during injection will be transmitted to the base bracket and resisted, so that the slider mold always maintains a stable mold clamping state, ensuring the production of high-precision products with high precision.
  • the multi-axis powder metallurgy injection molding machine provided by the invention can achieve the intended purpose of increasing production capacity, reducing cost, saving energy, and improving product quality.
  • This technology is capable of handling extremely complex multi-faceted three-dimensional shape parts and high-precision required parts, meeting the modern and ever-changing market requirements. Its high precision and high complexity are difficult to achieve in traditional powder molding methods.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

L'invention concerne une machine à mouler par injection de la métallurgie des poudres à arbres multiples appropriée pour produire des produits de la métallurgie des poudres qui possèdent une haute précision et une forme tridimensionnelle complexe. La machine comprend : une base de machine (19), un plateau principal (2), quatre jeux de dispositifs de guidage de moule, un ensemble moule à rainure coulissante en forme de croix, et un ensemble dispositif d'injection. Les quatre jeux de dispositifs de guidage de moule sont montés sur la face avant de la machine et sont couplés entre eux ; un moule à bloc coulissant est emboîté dans la rainure coulissante du châssis de moule en forme de croix et est relié à un mécanisme à vilebrequin et bielle des dispositifs de guidage de moule, pour décrire un mouvement alternatif linéaire dans la rainure coulissante sous l'effet de l'accouplement d'un cylindre et du mécanisme à vilebrequin et bielle, en exécutant la fonction d'ouverture et de fermeture du moule ; et un cylindre hydraulique est relié au mécanisme à vilebrequin et bielle pour appliquer une force additionnelle pour verrouiller le moule dans la mesure nécessaire. Le moule spécial de cette machine possède une structure de moule à blocs coulissants multiples à interférence et une ouverture de moule multidirectionnelle ; ledit moule est capable de produire des produits de la métallurgie des poudres qui possèdent des structures complexes et répondent à des exigences de haute précision ; et, tout en réduisant les coûts et en augmentant considérablement la capacité de production, garantit la stabilité de la qualité de la production.
PCT/CN2012/078602 2011-07-17 2012-07-13 Machine à mouler par injection de la métallurgie des poudres à arbres multiples WO2013010456A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011202510157U CN202239629U (zh) 2011-07-17 2011-07-17 多轴式粉末冶金注射成型机
CN201120251015.7 2011-07-17

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WO2013010456A1 true WO2013010456A1 (fr) 2013-01-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113458392A (zh) * 2021-07-20 2021-10-01 深圳市深广达数控五金精密有限公司 一种冶金粉末模具压制装置
CN117900471A (zh) * 2023-12-11 2024-04-19 广东益成科技有限公司 一种铝合金粉末冶金注射成型烧结装置及其工艺

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102886518A (zh) * 2011-07-17 2013-01-23 刘亚 多轴式粉末冶金注射成型机
CN202239629U (zh) * 2011-07-17 2012-05-30 刘军 多轴式粉末冶金注射成型机
CN202239632U (zh) * 2011-08-11 2012-05-30 刘军 电动多方位金属粉末压射成型机
CN104439242B (zh) * 2014-12-10 2016-05-25 华中科技大学 一种快速成形自动铺粉机构及自动铺粉烧结方法

Citations (5)

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Publication number Priority date Publication date Assignee Title
CN2491207Y (zh) * 2001-07-10 2002-05-15 广州市时代橡胶实业有限公司 橡胶－金属复合高压模
CN1662330A (zh) * 2003-04-03 2005-08-31 太盛工业株式会社 粉末烧结成形体的制造方法、粉末烧结成形体、粉末注射成形体的制造方法、粉末注射成形体及粉末注射成形用金属模
CN2885460Y (zh) * 2005-12-29 2007-04-04 刘亚 多滑块压铸机
CN201308994Y (zh) * 2008-11-10 2009-09-16 王明喜 信号隔离器腔体粉末注射成型模具
CN202239629U (zh) * 2011-07-17 2012-05-30 刘军 多轴式粉末冶金注射成型机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2491207Y (zh) * 2001-07-10 2002-05-15 广州市时代橡胶实业有限公司 橡胶－金属复合高压模
CN1662330A (zh) * 2003-04-03 2005-08-31 太盛工业株式会社 粉末烧结成形体的制造方法、粉末烧结成形体、粉末注射成形体的制造方法、粉末注射成形体及粉末注射成形用金属模
CN2885460Y (zh) * 2005-12-29 2007-04-04 刘亚 多滑块压铸机
CN201308994Y (zh) * 2008-11-10 2009-09-16 王明喜 信号隔离器腔体粉末注射成型模具
CN202239629U (zh) * 2011-07-17 2012-05-30 刘军 多轴式粉末冶金注射成型机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113458392A (zh) * 2021-07-20 2021-10-01 深圳市深广达数控五金精密有限公司 一种冶金粉末模具压制装置
CN117900471A (zh) * 2023-12-11 2024-04-19 广东益成科技有限公司 一种铝合金粉末冶金注射成型烧结装置及其工艺

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