Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/1761—Means for guiding movable mould supports or injection units on the machine base or frame; Machine bases or frames
• • 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
  • B29C45/1761—Means for guiding movable mould supports or injection units on the machine base or frame; Machine bases or frames
  • B29C2045/1765—Machine bases
  • B29C2045/1767—Machine bases connecting means for machine base parts

Definitions

• the invention relates to an injection molding machine with a machine base according to the preamble of claim 1.
• Such an injection molding machine is known, for example, from the Arburg Selecta series. Different parts of the machine stand are arranged below the mold closing unit and injection molding unit, which are connected to each other to operate the machine. When setting up the machine, however, the two parts of the machine base must be leveled independently of one another, which requires a certain amount of assembly work. If no corresponding adjustment is made, inaccuracies in the operation of the injection molding machine can result, which also negatively influence the quality of the injection molded parts.
• the present invention has for its object to provide an injection molding machine of the type mentioned with a machine base that is easy to set up and yet meets the requirements that exist when operating the injection molding machine.
• the machine base has several parts, which can be connected to the stationary mold carrier independently of one another.
• the stationary mold carrier thus specifies the point around which the machine foot is to be leveled.
• the division has the advantage, particularly in the case of larger machines, that a decision can be made at a later point in time for a larger or smaller partial foot, especially with regard to the injection molding unit.
• the machine base can be adapted to the respective needs according to the customer's requirements, which is also reflected in the cost of the entire machine. Nevertheless, forces can be reliably introduced where necessary, namely in the transition area between the stationary mold carrier and the injection molding unit.
• REPLACEMENT BLADE (RULE 26) 1 is a front view of the injection molding machine
• FIG. 2 shows the parts of the machine base with the stationary mold carrier removed to illustrate the interfaces
• FIG. 3 shows an enlarged detail from FIG. 2.
• Figure 1 shows a front view of an injection molding machine for processing plastics and other plasticizable materials such as ceramic or powdery masses.
• the injection molding machine has a mold closing unit F and an injection molding unit S on a machine base 10.
• the plasticizable materials are plasticized in the injection molding unit S and then injected into a mold cavity of an injection mold 13.
• This injection mold is accommodated in a mold clamping space R between a movable mold carrier 11 and a stationary mold carrier 12.
• the plastifiable masses are plasticized and injected along an injection axis s-s of the injection molding unit S.
• the machine base 10 has at least two adjacent parts 10a, 10b in the operating state.
• the injection molding unit is arranged above one part 10a, while the mold closing unit is arranged above the other part 10b.
• the stationary mold carrier 12 can be fastened to the other part 10b of the machine base. 2
• the parts 10a, 10b of the machine base 10 below and in the vertical projection of at least the base 12a of the stationary mold carrier 12 can be connected to it independently of one another. This allows the parts to be manufactured separately and connected to one another during assembly. This connection can only be late At the time of the manufacturing process, so that the parts can be prefabricated, but the customer can especially adapt the part 10a of the machine base on the injection molding side to the respective requirements.
• the size of the injection molding unit strongly depends on which material is processed and which parts are to be manufactured, its size can vary greatly.
• the machine base can be easily adapted to this - also for cost reasons. Due to the connection in the transition area between the two parts 10a, 10b of the machine base 10 through the stationary mold carrier, which itself is relatively stiff, a rest point is created, so to speak, around which the parts of the machine base can be aligned essentially independently of one another.
• connection of the part 10a on the injection molding side and the other part 10b of the machine base on the form-locking side is preferably carried out via two fastening options 14, 15 arranged transversely to the injection axis s-s.
• a limitation to only two fastening options in each case has the advantage that two points determine a straight line, so that in connection with the stationary mold carrier there is thus a "hinge axis" for easier leveling of the two machine stands relative to one another.
• FIG. 3 shows that the fastening options 14 for the other part 10b of the machine base with the stationary mold carrier 12 via the fastening means 22 and the fastening options 15 for the one part 10a of the machine base with the stationary mold carrier 12 by means of the fastening means 23 in each case parallel to one another are arranged. Furthermore, the straight lines given by the fastening options 14, 15 lie transversely, preferably at right angles to a vertical plane through the spray axis s-s.
• the manufacturer ensures that there is easy leveling around the axes.
• the attachment options 14, 15 themselves lie approximately over the spaced-apart longitudinal walls 10c, 10d of the other part 10b or over the longitudinal walls 10e, 10f of one part 10a of the machine base 10.
• the actual "connecting means" is therefore the stationary
• REPLACEMENT BLADE (RULE 26) nary mold carrier 12, it only being necessary to ensure that both parts 10a, 10b of the machine foot end or lie at least within the vertical projection of the foot or feet 12a of the stationary mold carrier 12.
• the part 10a carrying the injection molding unit S is narrower than the other part 10b carrying the mold closing unit F.
• Bearing rails 16, 17 are provided on both parts 10a, 10b of the machine base for mounting the injection molding unit S and mold closing unit F.
• other bearing rails can also be arranged at a suitable location for the purpose described below.
• the bearing rails 16 of one part 10a project beyond this part in the direction of the other part 10b.
• the bearing rails 16 of one part 10a come to rest in a receiving space 18 between the bearing rails 17 of the other part 10b.
• one part 10a rests on the other part 10b in such a way that both parts are supported in the area of the stationary mold carrier 12 together on the feet 19 of the other part 10b.
• the assembly is preferably carried out in such a way that a part of the machine base is first adjusted and this is connected to the stationary mold carrier 12. Then the other part of the machine base is fastened in this pre-adjusted assembly unit so that it can be easily adjusted.
• the other part 10b of the machine base 10 is set up and set up or leveled.
• the stationary mold carrier 12 is attached to this part. This attachment is carried out by placing the stationary mold carrier 12 on the bearing rails 17 with its feet 12a.
• the connection between the fastening options 14 and the fastening means 22 is created.
• the mold carrier 12 has further projections 12b which are immersed in receptacles 17a of the bearing rails 17 in order to achieve a positive connection.
• the assembly unit thus created is thus set up with respect to the other part 10b of the machine base.
• a receiving space 18 is formed between the stationary mold carrier 12 and the other part 10b, into which the bearing rails 16 of one part 10a of the machine base can be inserted. In order to establish the connection at the
• the bearing rail 16 also has projections 16a which engage in recesses in the feet 12a of the stationary mold carrier 12, which are not shown in the drawing.
• One part 10a of the machine base is fastened to the stationary mold carrier 12 by means of the fastening options 15 in connection with the fastening means 23.
• the contact with the stationary mold carrier initially results in a rough arrangement of the one part 10a, since, however, the further movement about it the fastening options 15 formed axis, the machine base can be easily leveled and adjusted.
• the fastening options which are preferably arranged in pairs under the stationary mold carrier 12 in parallel and transversely to the machine base, thus lead to clear axes of movement, so that a further leveling of the machine base is only required in the third dimension. Then the further construction of the injection molding machine takes place until an image according to FIG. 1 is obtained.
• the different length of one part 10a of the machine base has the consequence that the center of gravity of the machine also changes depending on this machine base.
• the mold clamping unit is relatively heavy compared to the injection molding unit. Therefore, the drive motor 20 and preferably also the pump units 21 of the mold closing unit F and the injection molding unit S, which are driven by the drive motor, are arranged below the injection molding unit in one part 10a of the machine base and thus displaced under the injection molding unit, so that the center of gravity is as central as possible.
• the drive motor 20 is suspended between the bearing rails 16. According to FIG. 3, this is done in that the bearing rails 16 have cutouts 16b, in which holding elements 24 are suspended. The drive motor 20 is suspended from these holding elements.
• REPLACEMENT BLADE (RULE 26) Basically, the two parts of the machine base are only indirectly connected to one another via their bearing rails in the area of the stationary mold carrier 12. In order to implement the machine, for which the previously mentioned center of gravity is also decisive, it is therefore necessary to create further connections between the two parts 10a, 10b of the machine base. Nevertheless, the unit created as a whole must then be relocated to the customer as required.

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)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7925910

Family Applications (1)

Country Status (7)

Cited By (3)

Families Citing this family (3)

Citations (5)

Family Cites Families (8)

• 1999
  • 1999-10-16 DE DE19949959A patent/DE19949959C1/de not_active Expired - Fee Related
• 2000
  • 2000-10-11 JP JP2001531566A patent/JP4629941B2/ja not_active Expired - Fee Related
  • 2000-10-11 AT AT00969480T patent/ATE239602T1/de active
  • 2000-10-11 EP EP00969480A patent/EP1220743B1/de not_active Expired - Lifetime
  • 2000-10-11 WO PCT/EP2000/009979 patent/WO2001028749A1/de active Search and Examination
  • 2000-10-11 CA CA002387707A patent/CA2387707C/en not_active Expired - Fee Related
  • 2000-10-11 DE DE50002112T patent/DE50002112D1/de not_active Expired - Lifetime
  • 2000-10-11 US US10/110,561 patent/US6666674B1/en not_active Expired - Lifetime

Patent Citations (5)

Non-Patent Citations (2)

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