CN108501303B - Double-mold single-injection system forming machine - Google Patents
Double-mold single-injection system forming machine Download PDFInfo
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- CN108501303B CN108501303B CN201810133699.7A CN201810133699A CN108501303B CN 108501303 B CN108501303 B CN 108501303B CN 201810133699 A CN201810133699 A CN 201810133699A CN 108501303 B CN108501303 B CN 108501303B
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- 238000001746 injection moulding Methods 0.000 claims abstract description 31
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- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000000465 moulding Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000003292 glue Substances 0.000 abstract description 5
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Images
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
- B29C45/03—Injection moulding apparatus
- B29C45/12—Injection moulding apparatus using two or more fixed moulds, e.g. in tandem
-
- 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
-
- 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
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
- B29C45/661—Mould opening, closing or clamping devices mechanical using a toggle mechanism for mould clamping
-
- 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
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
- B29C2045/328—Moulds having several axially spaced mould cavities, i.e. for making several separated articles having a movable mould plate between two fixed mould plates
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The application belongs to the technical field of injection molding equipment, and discloses a double-mold single-injection system molding machine which comprises a movable double-mold installation fixed mold closing structure, an injection molding unit and an inclined injection machine injection platform structure; oblique formula injection machine penetrates a structure, including the platform seat, sliding connection has the stand of penetrating on the platform seat, the cartridge that slides on the fixed die plate has drive push rod, drive push rod's one end and second movable mould board, the other end with penetrate the pedestal and be connected, it has the installation face to the slope of second movable mould board to penetrate on the stand, it sets up the plastify system to slide along the incline direction on the installation face, the injection system is connected to the plastify system, the extrusion feed cylinder of injection system has and corresponds the complex nozzle with the mouth of moulding plastics, the nozzle is following the second movable mould board and is removed in the mould moving process that opens and shuts, no action of returning, glue leakage probability has been reduced, cycle time has been. The scheme reduces the cost, improves the effective usability of the die, improves the production efficiency, saves the occupied area, and has high product qualification rate and uniform and consistent quality of products in various cavities.
Description
Technical Field
The application relates to the technical field of injection molding equipment, in particular to a double-mold single-injection system forming machine.
Background
With the development of society and the continuous abundance of materials, in order to meet the ever-increasing material requirements of people, higher requirements are put forward on the yield and variety of plastic products, the price is continuously reduced, and the challenge to manufacturers is larger and larger, so that the product yield per unit time is improved on the premise of ensuring the quality, and the effort of reducing the cost becomes the consensus of each manufacturer.
In order to further improve the product yield, more equipment manufacturers research a plurality of methods to solve the problems, such as increasing the cavity number of the mould, designing a laminated mould with multiple parting surfaces, and the like.
However, the increase in the number of cavities means an increase in the parting surface of the mold and an increase in the overall shape of the mold, and therefore, equipment with a larger clamping force is required, and therefore, it is necessary to purchase larger injection molding equipment at a higher cost to meet the demand. In addition, the laminated mold with multiple parting surfaces is difficult to manufacture due to the complex structure of the laminated mold, expensive in manufacturing cost and difficult to maintain compared with a general mold.
When the double-mold injection molding equipment in the market opens the mold each time, the injection nozzle system needs to be separated from the shunting template, so that the production efficiency is reduced. And the shunting template can not be movably adjusted relative to the movable template, and can only meet the requirements of specific double molds.
Disclosure of Invention
In view of the above-mentioned deficiencies or inadequacies of the prior art, it would be desirable to provide a dual-mold, single-injection-system molding machine that reduces equipment costs.
The application provides a double-mold single-injection system forming machine, which comprises a movable double-mold installation fixed mold closing structure, an injection molding unit and an inclined injection machine injection platform structure;
the movable double-die installation and fixed die assembly structure comprises a guide post, wherein a die adjusting plate, a first movable die plate and a fixed die plate are sequentially arranged on the guide post, the adjusting template and the first movable template are in sliding fit with the guide post, the fixed template is fixedly connected with the guide post, the mould adjusting plate is connected with a mould adjusting mechanism and a mould locking mechanism, a second movable mould plate which is in sliding fit with the guide post is arranged between the first movable mould plate and the fixed mould plate, the second movable mould plate is provided with a first half mould mounting surface facing the first movable mould plate and a second half mould mounting surface facing the fixed mould plate, the first half mold mounting surface and the second half mold mounting surface are both provided with runner outlets, the side surface of the second movable mold plate is provided with an injection molding port, the injection molding opening is communicated with outlets of the runners through the runners, and a mold opening and closing driving mechanism is arranged between the second movable mold plate and the fixed mold plate;
the injection molding unit comprises a plasticizing system and an injection system;
the inclined injection machine penetrates a structure, including the platform seat, sliding connection has the stand of penetrating on the platform seat, the cartridge that slides on the fixed die plate has drive push rod, drive push rod's one end with the second movable mould board, the other end with it connects to penetrate the pedestal, penetrate to have on the pedestal to the installation face of second movable mould board slope, slide along the incline direction on the installation face and set up the plastify system, the injection system is connected to the plastify system, the extrusion feed cylinder of injection system has the nozzle, the nozzle is opening and shutting the mould removal process and is following the second movable mould board removes, and with the mouth of moulding plastics keeps the butt joint cooperation.
Further, transfer the template with be connected with mechanical locking lever between the first movable mould board, transfer the template with be provided with first connecting hole on the two of first movable mould board, be provided with the second connecting hole on another, mechanical locking lever with first connecting hole fixed connection, mechanical locking lever with second connecting hole sliding connection, be provided with the constant head tank on the mechanical locking lever, the second connecting hole deviates from one side of first connecting hole articulates there is the locking plate, the constant head tank have towards the locating surface of first connecting hole, the locking plate with the locating surface stopping cooperation.
Furthermore, a linear driving device for driving the plasticizing system to slide along the inclined direction is arranged between the plasticizing system and the second movable mould plate.
Further, drive push rod includes mutual articulated initiative push rod and driven push rod, initiative push rod with second movable mould board fixed connection, driven push rod with it is articulated to penetrate the pedestal, initiative push rod with fixed mould board sliding fit, two articulated axes of driven push rod are at the perpendicular to the projection in the plane of driven push rod axis is crossing.
Further, the initiative push rod includes connector and two connecting rods that are parallel to each other, two fixedly connected with push rod connecting seat between the connecting rod, connector fixed connection in on the push rod connecting seat, each the connecting rod all with second movable mould board fixed connection, the connector with driven push rod is articulated, each the connecting rod with fixed die plate sliding fit, the lower part of penetrating the pedestal is provided with downwardly extending's connecting plate, the lower extreme of connecting plate with driven push rod is articulated.
Further, the sub-unit connection of second movable mould board has bearing structure, bearing structure includes a mould supporting beam, a supporting seat slider, a supporting seat slide and adjusting screw, a mould supporting beam and second movable mould board fixed connection, a first recess has been seted up on the mould supporting beam, be equipped with the supporting seat slider in the first recess, the supporting seat slider can slide from top to bottom in the first recess, a second recess has been seted up on the supporting seat slider, be equipped with the supporting seat slide in the second recess, the supporting seat slide can carry out horizontal migration on the horizontal support face, adjusting screw passes supporting seat slide, supporting seat slider and a mould supporting beam in proper order, through adjusting screw's height, promotes a mould supporting beam and carries out the adjustment of height from top to bottom.
Furthermore, the end parts of the die supporting beam and the second movable die plate are positioned through positioning pins, and fastening screws for connecting the die supporting beam and the second movable die plate are arranged on two sides of each positioning pin; or,
the mould supporting beam and the second movable mould plate are of an integrated structure.
Further, the both ends of first recess with the laminating of supporting seat slider, the both ends of second recess with the laminating of supporting seat slide, supporting seat slider, supporting seat slide and adjusting screw are two, and the symmetry sets up a mould supporting beam's lower extreme, the last adjusting nut that is equipped with of adjusting screw.
Furthermore, the tip of supporting seat slider is equipped with the scraping plate, the scraping plate is used for cleaing away the foreign matter on the horizontal plane, the scraping plate is two, sets up the both sides of supporting seat slider.
Furthermore, a boss is arranged at the bottom of the adjusting screw, a hole is formed in the upper end of the supporting seat sliding block, the boss is embedded into the hole and used for preventing the supporting seat sliding block from moving back and forth, demolding ejector rod mechanisms are arranged on the first movable mold plate and the fixed mold plate respectively, and each demolding ejector rod mechanism comprises an ejector rod and a hydraulic cylinder driving the ejector rod to move along the axis of the ejector rod.
The application provides an above-mentioned scheme, through set up the second movable mould board between first movable mould board and fixed die plate, make and to be connected one set of mould between first movable mould board and the second movable mould board, can connect one set of mould between second movable mould board and the fixed die plate, make it can use two pairs of general moulds to produce simultaneously on an injection moulding equipment, the cost is reduced has improved the effective usability of mould, has improved production efficiency, has saved area.
The driving push rod is arranged between the second movable mould plate and the injection pedestal, the second movable mould plate can drive the injection pedestal to synchronously move through the driving push rod, and the injection pedestal simultaneously drives the plasticizing system and the injection system to synchronously move, so that a nozzle of the injection system can be always in a good butt joint state with an injection port of the movable mould plate, the glue leakage is avoided, and the plasticizing system and the injection system can synchronously move with the opening and closing mould when the opening and closing mould is realized. In addition, the runner is divided into two symmetrical runners, so that the injected molten material is divided into two parts and symmetrically flows to the two auxiliary mold cavities respectively in the front-back direction, the injection mode can realize the pressure balance of the front cavity and the back cavity of the two auxiliary molds, the pressure on the second movable mold plate can be mutually offset, the runner is short, the pressure in the injection process is stable, the product qualification rate is high, and the products in all the cavities have uniform and consistent quality.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a front view of a dual-mold, single-injection-system molding machine provided in accordance with an embodiment of the present invention;
FIG. 2 is a top view of a moveable dual mold mounted stationary clamp structure provided in accordance with an embodiment of the present invention;
FIG. 3 is a front view of the angled injection molding machine injection stage structure with the plasticizing and injection systems removed, in accordance with an embodiment of the present invention;
FIG. 4 is a top view of the angled injection molding machine injection stage structure provided in accordance with an embodiment of the present invention with the plasticizing system and the injection system removed;
FIG. 5 is a schematic view of a connection between a support structure and a second movable platen according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a mobile support seat according to an embodiment of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6;
FIG. 8 is a schematic structural view of a mold support beam;
FIG. 9 is a front view of another implementation of a dual-mold, single-injection-system molding machine provided in accordance with an embodiment of the present invention;
fig. 10 is a partial schematic view of an extrusion barrel portion according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1-4, the dual-mold single-injection system molding machine provided by the embodiment of the invention comprises a movable dual-mold installation fixed mold clamping structure, an injection unit and an inclined injection machine injection platform structure.
The movable double-mold mounting and fixing mold closing structure comprises a guide post 306, a mold adjusting plate 303, a first movable mold plate 305 and a fixed mold plate 308 are sequentially arranged on the guide post 306, the mold adjusting plate 303 and the first movable mold plate 305 are in sliding fit with the guide post 306, the fixed mold plate 308 is fixedly connected with the guide post 306, the mold adjusting plate 303 is connected with a mold adjusting mechanism 302 and a mold locking mechanism, a second movable mold plate 307 in sliding fit with the guide post 306 is arranged between the first movable mold plate 305 and the fixed mold plate 308, the second movable mold plate 307 is provided with a first half mold mounting surface facing the first movable mold plate 305 and a second half mold mounting surface facing the fixed mold plate 308, flow channel outlets are respectively arranged on the first half mold mounting surface and the second half mold mounting surface, an injection molding port 319 is arranged on the side surface of the second movable mold plate 307, the injection port 319 is communicated with the flow channel outlets through flow channels, and a mold opening and closing.
The injection unit 330 includes a plasticizing system and an injection system.
The inclined injection machine injection platform structure comprises a platform base 350, wherein an injection platform base is connected onto the platform base 350 in a sliding mode, a driving push rod is inserted onto a fixed template 308 in a sliding mode, one end of the driving push rod is connected with a second movable template 307, the other end of the driving push rod is connected with the injection platform base, an installation surface inclined towards the second movable template is arranged on the injection platform base, a plasticizing system is arranged on the installation surface in a sliding mode along the inclined direction and connected with an injection system, an extrusion material cylinder 332 of the injection system is provided with a nozzle 380, the nozzle 380 moves along with the second movable template 307 in the mold opening and closing moving process and keeps in butt joint fit with an injection molding port 319, namely, the nozzle and the injection molding port 319 are always in a butt joint state and do not move backwards, the nozzle and the injection molding port 319 are not separated, the glue leakage probability is reduced, the cycle time.
As an implementation manner, the dual-mold single-injection system molding machine may be provided with four parallel guide pillars 306, the four parallel guide pillars 306 are arranged in a rectangular shape, the adjusting mold plate 303 (also referred to as a back mold plate), the first moving mold plate 305 and the fixed mold plate 308 are respectively penetrated on the four guide pillars 306, the adjusting mold plate 303 and the first moving mold plate 305 are in sliding fit with the guide pillars 306, and the fixed mold plate 308 is fixedly connected with the guide pillars 306. The mold adjusting plate 303 is connected with a mold adjusting mechanism 302 and a mold locking mechanism.
The mold adjusting mechanism 302 may include, for example, a gear ring, and at least three riding wheels are uniformly arranged at an inner ring of the gear ring, and the riding wheels are rotatably connected to the mold adjusting plate. The riding wheel is used for supporting the gear ring, so that the gear ring can rotate around the center of the gear ring. The gear mounting rack is arranged at the position of each guide pillar 306 and fixedly connected with the die adjusting plate, a gear is installed in the gear mounting rack in a rotating mode, an inner ring of the gear is provided with an inner thread, an outer thread is arranged on the guide pillar 306, the gear is screwed on the outer thread of the guide pillar 306, and the gear is meshed with the gear ring. The mould adjusting plate is also fixedly connected with a mould adjusting motor. After the mode locking is completed, the driving gear on the mode adjusting motor can drive the gear ring to rotate, and the gear ring drives the gear to rotate so as to adjust the position of the mode adjusting plate 303 along the axial direction of the guide pillar 306, so that the male die is in full contact with the female die.
The clamping mechanism may be, for example, a hydraulic cylinder 301 fixed on the die plate, a piston rod of the hydraulic cylinder 301 passes through the die plate 303, a first connecting rod 315 is fixedly connected to an end of the piston rod, and a second connecting rod 316 is hinged to the first connecting rod 315. The third connecting rod 317 is hinged on the adjusting plate 303, and the fourth connecting rod 318 hinged with the first movable plate 305 is hinged on the third connecting rod 317. One end of the second link 316 is hinged to the middle of the third link 317. The first movable die plate 305 is driven to slide along the guide post 306 by the extension and contraction of the piston rod of the hydraulic cylinder 301, so as to realize die opening, die closing and die locking.
A second movable die plate 307 which is in sliding fit with the guide pillar 306 is arranged between the first movable die plate 305 and the fixed die plate 308, and the second movable die plate 307 is provided with a first half die mounting surface facing the first movable die plate 305 and a second half die mounting surface facing the fixed die plate 308. For example, when in use, the female molds 311 of the two sets of molds are respectively fixed on the first half mold mounting surface and the second half mold mounting surface, and the male molds 310 of the two sets of molds are respectively and correspondingly fixed on the first movable mold plate 305 and the fixed mold plate 308. And the first half mold mounting surface and the second half mold mounting surface are both provided with runner outlets which are used for being communicated with the female molds 311 and used for conveying molten plastic raw materials into the molds. The side surface of the second movable mold plate 307 is provided with an injection molding port 319, the injection molding port 319 is communicated with outlets of the flow passages through the flow passages, the injection molding port 319 is used for being communicated with a nozzle 380 of an injection molding mechanism, and molten plastic in the injection molding machine enters the flow passages through the injection molding port 319 and then enters a cavity of a mold through an outlet of the flow passages. A mold opening and closing driving mechanism is disposed between the second movable mold plate 307 and the fixed mold plate 308 for driving the second movable mold plate 307 to move along the guide pillar 306. For example, the mold opening and closing driving mechanism may include a hydraulic cylinder 309 fixedly connected to the fixed mold plate 308, and a piston rod of the hydraulic cylinder 309 is fixedly connected to the second movable mold plate 307.
When the mold closing device works, the mold closing driving mechanism drives the first movable mold plate 305 to move back and forth, the second movable mold plate 307 and the first movable mold plate 305 move left and right under the action of the mold closing driving mechanism and the second movable mold plate 307 opening and closing hydraulic cylinder 309, the displacement speed of the second movable mold plate 307 relative to the first movable mold plate 305 can be freely adjusted according to process requirements, and the general relative movement speed of the second movable mold plate 307 is lower than that of the first movable mold plate 305.
The platform base 350 and the fixed mold plate 308 are fixedly connected to the base of the injection molding apparatus. The fixed mold plate 308 is provided with a sliding hole, and the driving push rod is inserted in the sliding hole in a transmission manner, and the specific structure and shape of the driving push rod are not specifically limited, and the driving push rod only has two connecting parts, where the transmission insertion means that the driving push rod is inserted in the sliding hole as a transmission component. One of the connecting portions of the driving rod is connected to the shooting pedestal, and the other connecting portion is connected to the second movable die plate 307. A driving mechanism may be disposed between the fixed mold plate 308 and the second movable mold plate 307 to drive the movable mold plate to move, for example, but not limited to, a driving cylinder, which may be a hydraulic cylinder or a pneumatic cylinder, is fixedly disposed on the fixed mold plate 308, a piston rod of the driving cylinder is connected to the second movable mold plate 307, and the driving cylinder drives the second movable mold plate 307 to move for mold closing or mold opening. The shooting pot base has an installation surface inclined towards the movable platen by an angle of, for example, 0-80 °, and a plasticizing system is slidably arranged in the inclined direction and connected to an injection system having a nozzle 380 corresponding to the injection port 319 of the second movable platen 307. The nozzle 380 of the extrusion cartridge 332 of the injection system can be docked or undocked from the injection port 319 by moving the plasticizing system along the tilting method.
The plasticizing system and the injection system may adopt structures adopted in existing injection molding equipment, and specific structures of the plasticizing system and the injection system are not described herein again.
According to the scheme, the second movable mold plate 307 is arranged between the first movable mold plate 305 and the fixed mold plate 308, so that one set of mold can be connected between the first movable mold plate 305 and the second movable mold plate 307, and one set of mold can be connected between the second movable mold plate 307 and the fixed mold plate 308, so that two sets of universal molds can be used on one injection molding device for production, the cost is reduced, the effective usability of the mold is improved, the production efficiency is improved, and the occupied area is saved.
The driving push rod is arranged between the second movable mold plate 307 and the injection pedestal, the second movable mold plate 307 can drive the injection pedestal to move synchronously through the driving push rod, and the injection pedestal simultaneously drives the plasticizing system and the injection system to move synchronously, so that the nozzle 380 of the injection system can be always in a good butt joint state with the injection port 319 of the second movable mold plate 307, the condition of glue leakage is avoided, and the plasticizing system and the injection system can move synchronously with the mold opening and closing when the mold is opened and closed. In addition, the runner is divided into two symmetrical runners, so that the injected molten material is divided into two parts and symmetrically flows to the two auxiliary mold cavities respectively in the front-back direction, the injection mode can realize the pressure balance of the front cavity and the back cavity of the two auxiliary molds, the pressure on the second movable mold plate can be mutually offset, the runner is short, the pressure in the injection process is stable, the product qualification rate is high, and the products in all the cavities have uniform and consistent quality.
A mechanical locking bar 313 is connected between the adjusting plate 303 and the first movable plate 305, one of the adjusting plate 303 and the first movable plate 305 is provided with a first connecting hole, and the other is provided with a second connecting hole. For example, but not limiting of, the edge of the first movable platen 305 has a first connection plate extending outwardly, the first connection hole is disposed on the first connection plate, the edge of the adjustable platen 303 has a second connection plate extending outwardly, and the second connection hole is disposed on the second connection plate.
The mechanical locking rod 313 is fixedly connected with the first connecting hole, the mechanical locking rod 313 is connected with the second connecting hole in a sliding mode, and positioning grooves are formed in the mechanical locking rod 313 and can be arranged at equal intervals. One side of the second connecting hole departing from the first connecting hole is hinged with a locking piece 314, the positioning groove is provided with a positioning surface facing the first connecting hole, and the locking piece is matched with the positioning surface in a stopping way. For example, the cross-section of the positioning groove is a right trapezoid, and the right-angled waist of the right trapezoid corresponds to the positioning surface.
With the above-described structure, the mechanical lock lever 313 can freely slide leftward (referring to the view direction of fig. 1) along with the first moving platen 305, and can prevent the first moving platen 305 from abnormally moving rightward, which can only move rightward when the locking piece is wound out of the positioning groove.
Referring to fig. 10, the injection system includes an extrusion barrel 332, the nozzle 380 is connected to the extrusion barrel 332, and a linear driving device 354 is connected to the injection system for driving the whole injection system to move, so as to drive the plasticizing system to slide along the inclined surface, thereby driving the nozzle 380 to move, so as to realize the docking and undocking between the nozzle 380 and the injection port 319. For example, but not limiting of, linear drive 354 may employ a pneumatic or hydraulic cylinder. The piston rod of the linear driving device 354 is hinged with a connecting rod 353, the connecting rod 353 is hinged with the connecting piece 331, and when the piston rod contracts, the nozzle 380 can be fully contacted with the injection molding opening 319, so that the problem of glue leakage is avoided. In addition, when material cleaning or process requirements are required, the plasticizing system is slid upward by the linear drive 354, such that the nozzle 380 and the second moving die plate 307 disengage.
A linear driving device 354 for driving the plasticizing system to slide along the inclined direction is arranged between the plasticizing system and the second movable mould plate. The linear driving device 354 may be a hydraulic cylinder or a pneumatic cylinder, one end of the linear driving device 354 is connected to the plasticizing system, and the other end of the linear driving device 354 is connected to a connecting member 331 fixedly connected to the second movable mold plate 307 through a connecting rod 353, so that the nozzle 380 can be separated from or abutted to the injection port 319 by controlling the extension or retraction of the linear driving device 354.
The driving push rod includes a driving push rod and a driven push rod 358 hinged to each other, the driving push rod is fixedly connected to the second moving platen 307, for example, but not limited to, a connecting member 362 is provided at an end of the driving push rod, and the connecting member 362 is fixedly connected to the second moving platen 307 by a bolt. The driven push rod 358 is hinged with the shooting table seat, and the driving push rod is in sliding fit with the fixed die plate 308. The driving and driven push rods 358 may be articulated by a pin 359. The projections of the two hinge axes of the driven push rod 358 in a plane perpendicular to the axis of the driven push rod 358 intersect. Namely, the hinge axes at the two ends of the driven push rod 358 are not parallel lines, and the connection form of the driven push rod 358 forms a universal joint, so that the requirements on the motion precision of the shooting pedestal and the second movable template 307 can be reduced, the processing cost is saved, the debugging difficulty is reduced, and the sliding direction of the shooting pedestal can be adjusted according to specific conditions, so that the sliding direction of the shooting pedestal can be selected in various ways and is not parallel to the second movable template 307.
The fixed template is fixedly arranged on the sliding direction of the shooting pedestal, and the sliding direction of the driving push rod is the same as that of the shooting pedestal.
The driving push rod includes a connector 360 and two parallel connecting rods 361, a push rod connecting seat 363 is fixedly connected between the two connecting rods 361, and the push rod connecting seat 363 may be but not limited to a rod. The connecting head 360 is fixedly connected to the push rod connecting seat 363, each connecting rod 361 is fixedly connected to the second movable mold plate 307, the connecting head 360 is hinged to the driven push rod 358, and each connecting rod 361 is in sliding fit with the fixed mold plate 308. For example, the top of the fixed mold plate 308 is provided with a supporting ear, a through hole is arranged in the supporting ear, and the connecting rod 361 passes through the through hole to realize sliding fit with the fixed mold plate 308. The connector 360 may have a U-shaped connection, i.e. it may be formed by two parallel spaced apart plates fixedly attached to the base, the plates having coaxial through holes, and the follower 358 having one end located between the plates and hinged to the connector 360 by a pin 359 passing through the through holes.
The lower portion of the shooting pot base is provided with a downwardly extending coupling plate 355, and the lower end of the coupling plate 355 is hinged to a driven push rod 358. Coupling plate 355 may be hinged to driven push rod 358 by pin 357.
Fixedly connected with guide rail that is parallel to each other on the platform seat 350 shoots the pedestal and is provided with the guide slot with guide rail complex, and the inner wall of guide slot can set up the ball to form rolling guide rail pair, reduced the friction, improved life and motion accuracy.
Penetrate the pedestal and include the synchronous pallet seat 351 with platform seat 350 sliding fit, penetrate a mount pad 352 through bolt fixedly connected with in the top of synchronous pallet seat 351, the installation face sets up on penetrating a mount pad 352. For example, a linear guide may be mounted on the mounting surface, and the plasticizing system may be slidably coupled to the mounting surface via the linear guide.
Referring to fig. 3-6, the lower portion of the second movable die plate 307 is connected to a supporting structure 312, the supporting structure 312 includes a die supporting beam 1, a supporting seat slider 7, a supporting seat sliding plate 8 and an adjusting screw 3, the die supporting beam 1 is fixedly connected to the end portion of the second movable die plate 307, a first groove is formed in the die supporting beam 1, the supporting seat slider 7 is arranged in the first groove, the supporting seat slider 7 can slide up and down in the first groove, a second groove is formed in the supporting seat slider 7, the supporting seat sliding plate 8 is arranged in the second groove, the supporting seat sliding plate 8 can horizontally move on a horizontal supporting surface, the adjusting screw 3 sequentially passes through the supporting seat sliding plate 8, the supporting seat slider 7 and the die supporting beam 1, and the height of the die supporting beam 1 is adjusted by adjusting the height of the adjusting screw 3.
A movable supporting structure is arranged at the lower part of the second movable mold plate 307 to meet the requirement of the mold parallelism and improve the quality of products, and the second movable mold plate 307 passes through the guide posts 306 on the mold opening and closing system, is positioned by the guide posts 306 and can move along the guide posts 306 in the horizontal axial direction.
Referring to fig. 5-8, the ends of the mold supporting beam 1 and the second movable mold plate 307 are positioned by positioning pins 5, and fastening screws 4 for connecting the mold supporting beam 1 and the second movable mold plate 307 are disposed on two sides of the positioning pins 5. The mould supporting beam 1 can adopt an I-shaped structure.
As another way of realizing this, the mold supporting beam 1 is of an integral structure with the second movable die plate 307.
Two ends of the first groove are attached to the supporting seat sliding block 7, and the supporting seat sliding block 7 cannot move left and right; the two ends of the second groove are attached to the supporting seat sliding plate 8.
The supporting seat sliding block 7, the supporting seat sliding plate 8 and the adjusting screw 3 are two, symmetrically arranged at the lower end of the die supporting beam 1, and the adjusting screw 3 is provided with an adjusting nut 2.
The invention can be fastened by more than two groups of adjusting screws 3. Two groups of adjusting screws 3 penetrate through the mold supporting beam 1 and are distributed on two sides of the mold supporting beam 1; a threaded hole is formed in the die supporting beam 1, the adjusting screw 3 is connected with the threaded hole, the lower end plane of the adjusting screw 3 is in contact with the supporting seat sliding block 7, and when the adjusting screw 3 is rotated, the die supporting beam 1 can move upwards under the action of the thrust of the thread pair; the parallelism of the second movable die plate 307, the first movable die plate 305 and the fixed die plate 308 is adjusted by adjusting the heights of the four groups of adjusting screws 3, and when the parallelism is adjusted to meet the process requirement, the adjusting nuts 2 are fastened downwards to prevent the adjusting screws 3 from loosening.
The lower part of the support seat sliding plate 8 is contacted with the horizontal plane and is rigidly connected with the support seat sliding block 7; the supporting seat sliding plate 8 can be made of wear-resistant materials, preferably tin bronze materials are used for greasing and lubricating, and other wear-resistant materials can be used for reducing moving friction.
Referring also to fig. 7, the end of the supporting seat slider 7 is provided with a scraping plate 9, and the scraping plate 9 is used for removing foreign matters on a horizontal plane.
The scraping plates 9 are arranged on two sides of the supporting seat sliding block 7, and one scraping plate is arranged on one side of the supporting seat sliding block to ensure that the whole moving supporting mechanism is not involved in foreign matters in the moving process and ensure the cleanness of a moving horizontal plane (the dotted line in figures 3 and 5 represents the horizontal plane).
The bottom of the adjusting screw 3 is provided with a boss, the upper end of the supporting seat sliding block 7 is provided with a hole, and the boss is embedded into the hole and used for preventing the supporting seat sliding block 7 from moving back and forth.
The boss can be a circular boss, and the boss is embedded into a hole at the upper end of the supporting seat sliding block to prevent the supporting seat sliding block from moving back and forth and separating from the mold supporting beam.
The first movable die plate 305 and the fixed die plate 308 are both provided with a demolding mandril mechanism 304, and the two dies are demolded through the demolding mandril mechanism 304. The ejector mechanism 304 includes an ejector pin for ejecting the product from the mold and a hydraulic cylinder for driving the ejector pin to move along its axis.
The injection unit 330 and the movable two-mold mounting and fixing mold clamping structure may be arranged at an included angle of 0-90 ° on a vertically downward projection plane, for example, the above embodiment shows an arrangement at an included angle of 0 °, but it is also possible to refer to fig. 9, and the injection unit 330 and the movable two-mold mounting and fixing mold clamping structure may be arranged at an included angle of 90 ° on a vertically downward projection plane, for example, referring to the extrusion cylinder 332 and the guide pillar 306, which are arranged at an included angle of 90 ° on a vertically downward projection plane.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (8)
1. A double-mold single-injection system forming machine is characterized by comprising a movable double-mold installation fixed mold closing structure, an injection molding unit and an inclined injection machine injection platform structure;
the movable double-die installation and fixed die assembly structure comprises a guide post, wherein a die adjusting plate, a first movable die plate and a fixed die plate are sequentially arranged on the guide post, the adjusting template and the first movable template are in sliding fit with the guide post, the fixed template is fixedly connected with the guide post, the mould adjusting plate is connected with a mould adjusting mechanism and a mould locking mechanism, a second movable mould plate which is in sliding fit with the guide post is arranged between the first movable mould plate and the fixed mould plate, the second movable mould plate is provided with a first half mould mounting surface facing the first movable mould plate and a second half mould mounting surface facing the fixed mould plate, the first half mold mounting surface and the second half mold mounting surface are both provided with runner outlets, the side surface of the second movable mold plate is provided with an injection molding port, the injection molding opening is communicated with outlets of the runners through the runners, and a mold opening and closing driving mechanism is arranged between the second movable mold plate and the fixed mold plate; the die opening and closing driving mechanism comprises a hydraulic cylinder fixedly connected to the fixed die plate, a piston rod of the hydraulic cylinder is fixedly connected to the second movable die plate,
the injection molding unit comprises a plasticizing system and an injection system;
the inclined injection machine injection platform structure comprises a platform seat, wherein an injection platform seat is connected to the platform seat in a sliding mode, a driving push rod is inserted onto a fixed template in a sliding mode, one end of the driving push rod is connected with a second movable template, the other end of the driving push rod is connected with the injection platform seat, an installation surface inclined towards the second movable template is arranged on the injection platform seat, a plasticizing system is arranged on the installation surface in a sliding mode along the inclined direction and is connected with an injection system, an extrusion material cylinder of the injection system is provided with a nozzle, and the nozzle moves along with the second movable template in the mold opening and closing moving process and keeps butt joint fit with an injection molding opening;
the lower part of the second movable template is connected with a supporting structure, the supporting structure comprises a mold supporting beam, a supporting seat sliding block, a supporting seat sliding plate and an adjusting screw, the mold supporting beam is fixedly connected with the second movable template, a first groove is formed in the mold supporting beam, the supporting seat sliding block is arranged in the first groove and can slide up and down in the first groove, a second groove is formed in the supporting seat sliding block, the supporting seat sliding plate is arranged in the second groove and can horizontally move on a horizontal supporting surface, the adjusting screw sequentially penetrates through the supporting seat sliding plate, the supporting seat sliding block and the mold supporting beam, and the mold supporting beam is pushed to adjust the vertical height by adjusting the height of the adjusting screw;
the bottom of the adjusting screw is provided with a boss, the upper end of the supporting seat sliding block is provided with a hole, the boss is embedded into the hole and used for preventing the supporting seat sliding block from moving back and forth, the first movable die plate and the fixed die plate are both provided with a demolding ejector rod mechanism, and the demolding ejector rod mechanism comprises an ejector rod and a hydraulic cylinder driving the ejector rod to move along the axis of the ejector rod.
2. The molding machine of claim 1, wherein a mechanical locking bar is connected between the mold adjusting plate and the first movable plate, one of the mold adjusting plate and the first movable plate is provided with a first connecting hole, the other one of the mold adjusting plate and the first movable plate is provided with a second connecting hole, the mechanical locking bar is fixedly connected with the first connecting hole, the mechanical locking bar is connected with the second connecting hole in a sliding manner, a positioning groove is arranged on the mechanical locking bar, one side of the second connecting hole departing from the first connecting hole is hinged with a locking piece, the positioning groove is provided with a positioning surface facing the first connecting hole, and the locking piece is matched with the positioning surface in a stopping manner.
3. The molding machine of claim 1 or 2, wherein a linear driving device for driving the plasticizing system to slide in the inclined direction is disposed between the plasticizing system and the second movable platen.
4. The molding machine of claim 3, wherein the driving rod comprises a driving rod and a driven rod hinged to each other, the driving rod is fixedly connected to the second movable mold plate, the driven rod is hinged to the injection pedestal, the driving rod is in sliding fit with the fixed mold plate, and projections of two hinge axes of the driven rod are perpendicular to a plane of the axis of the driven rod.
5. The molding machine of claim 4, wherein the driving rod comprises a connecting head and two parallel connecting rods, a connecting rod connecting seat is fixedly connected between the two connecting rods, the connecting head is fixedly connected to the connecting rod connecting seat, each connecting rod is fixedly connected to the second movable mold plate, the connecting head is hinged to the driven rod, each connecting rod is in sliding fit with the fixed mold plate, a connecting plate extending downwards is arranged at the lower part of the shooting table seat, and the lower end of the connecting plate is hinged to the driven rod.
6. The molding machine with double molds and single injection system according to claim 1, wherein the ends of the mold supporting beam and the second movable mold plate are positioned by positioning pins, and fastening screws for connecting the mold supporting beam and the second movable mold plate are arranged on two sides of the positioning pins; or,
the mould supporting beam and the second movable mould plate are of an integrated structure.
7. The molding machine of claim 1, wherein two ends of the first groove are attached to the support block, two ends of the second groove are attached to the support slide, two support blocks, two support slide and two adjusting screws are symmetrically disposed at the lower end of the mold support beam, and adjusting nuts are disposed on the adjusting screws.
8. The molding machine of claim 1, wherein two scraping plates are provided at the end of the support block for removing foreign matter on a horizontal plane, and are provided at both sides of the support block.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810133699.7A CN108501303B (en) | 2018-02-09 | 2018-02-09 | Double-mold single-injection system forming machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810133699.7A CN108501303B (en) | 2018-02-09 | 2018-02-09 | Double-mold single-injection system forming machine |
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| CN108501303B true CN108501303B (en) | 2021-06-22 |
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| CN109177061A (en) * | 2018-10-06 | 2019-01-11 | 孙美玲 | A kind of injection mold with increase workpiece strength |
| CN109366857A (en) * | 2018-10-25 | 2019-02-22 | 广东伟达智能装备股份有限公司 | A kind of singly injection double molds injection-moulding device and its injection molding forming method |
| CN112721072B (en) * | 2020-11-19 | 2022-08-23 | 宁波华城橡塑机械有限公司 | Energy-saving injection molding machine |
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