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
  • B29C45/64—Mould opening, closing or clamping devices
  • B29C45/67—Mould opening, closing or clamping devices hydraulic
  • B29C45/6707—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement
  • B29C45/6714—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould

Definitions

• the present invention is directed to a hydraulic device for a hoof of a mold such as a movable metal mold in an injection molding machine.
• injection molding can be expanded by using a fixed mold that is fixed to the base.
• the SI mold is combined with the mold. Molded products are produced under pressure.
• the movable mold is first moved quickly with a small amount of pressurized oil by a small s cylinder, and then by a large diameter cylinder. The metal mold is going to be released into the fixed mold with a large enough force.
• a rapid-feeding 0 cylinder 4 is integrally formed with a ram 10 supporting a movable mold 1.
• the piston 3 fixed to the large-diameter cylinder 5 to which the ram 10 is fitted is fitted to the fast-forward cylinder 4 and pressurized oil is supplied to perform fast-forward. Therefore, in this rapid traversing process, the oil in the large oil cylinder 5 of the large S cylinder 5 must be balanced by relying on the pressurized oil also in the large cylinder 5 fitted with the ram 0. In other words, a large amount of oil is supplied to the large ⁇ cylinder 5 by the amount of the fast-forward process.
• Reciprocating the new ram 10 every cycle not only results in loss of plowing power, but also in hydraulic tracts to prevent switching of the sugar level and preventing window panning at the start. It is also disadvantageous in terms of cost, such as the necessity of establishing a loose bite country route.
• the ram 10 supporting the movable mold 1 combined with the fixed mold 8 is fitted into the stationary large-diameter cylinder 5 »
• a fast-forward cylinder "14" is movably supported on the large wall of the large-diameter cylinder 5, and a piston 26 is fitted into the inside thereof.
• the rod 26a fixed to the cylinder is fixed to the large diameter cylinder 5.
• the oil is supplied to the oil chamber 15 of the rapid-forward cylinder 14. ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇
• the shape of the oil chambers 18 and 20 is large, and they form a fearsome oil column in the direction of the application of the bran, so the pressure rises due to the accumulation of characteristic air groups.
• a fundamental lack of RS was the main cause of the occurrence of skulls and defects when an operation phenomenon occurred and sa pressure was released.
• an increase in hydraulic oil flow due to the transfer of heat from Yiyin Kinen 1 to the large-diameter ram 10 causes the generation of bubbles and the urgency of the medical doctor.
• the object of the present invention is to solve the above-mentioned problem of fc, and by simply supplying a small amount of pressurized oil, the next support ⁇ material for supporting the movable mold can be quickly moved, and a powerful drilling machine can be used.
• An object of the present invention is to provide a simple, radial, and highly-desirable hydraulic pressure device that can generate pressure.
• a cup-shaped hollow ram is fitted into a large-diameter cylinder fixed to the base, and the ram is fast-forwarded to the wall of the large-g cylinder or * e ram.
• the support * material is connected, and the mold support »material protrudes from the front ram, and projects between the ram's wall and the front mold support» material.
• the guide is supported by the front S-lamb fiber wall »The material is supported so as to be movable in the direction perpendicular to the loop of the front S-ram.
• the ram and the fast-forward piston are configured separately, and the three supporting materials for supporting the gold g are fast-forwarded by the fast-forward cylinder on the ram and the laying, and then the S-support is provided.
• the holding material and the ram are suspended by the inner wrapping board, and a large moving force of the ram is transmitted to the fins.
• the first is a new surface of the conventional hydraulic press for molding kneading 8
• the second @ is a sectional view of the working surface of the conventional hydraulic kneading device for foaming
• FIG. 3 is the first embodiment of the present invention.
• FIG. 6 is a perspective view of a mold kneading hydraulic apparatus according to a second embodiment of the present invention
• FIG. The new face 3, the 8th zono is the inverted face of the ram of the kimono, the 9th S is the cross section of the peripheral device showing the S-bran state, and the 10th is the present invention.
• FIG. 4 is a new front view of the next-stage hydraulic concealment related to the third actual collapse.
• the injection molding is first described as follows. As shown in FIGS. 3 and 4, the injection molding 66 is hidden on a box-shaped base 68. The synthetic material supplied from the hopper 65 attached above is combined by the kneader 66 driven by the circumstance 67, and sent to the ripening 64. Then, the heating «64 forehead» ⁇ support from the nozzle and lighten the material 62 so that it can be injected into the inner space of the simple metal S62a and the crane mold 51a. ing.
• the four upper and lower tyrodes 60 are connected in series with the 4 6a and the mold support member 62, and the mold support member 51 is maintained along its shape. .
• the mold bran hydraulic device comprises a fast-forward cylinder mounting member, a mold cylinder mounting device B, a mold supporting member 51, a charging tool or a relay. It consists of a plate 53.
• the mold rolling cylinder device B is fixed.
• the large-diameter cylinder 46 fixed to the base 68 of the injection molding machine is provided with a hollow hollow piston 48a and an integral part thereof.
• the hollow ram 48 is fitted to form oils 47 and 47a, to which pressure oil is supplied from the hydraulic generation unit of Torou.
• Fast-forward cylinder installation A is outside the large-diameter cylinder 46.
• O PI 4 3 and the oil chamber 44 are divided. Then, the ⁇ -lead 42, which is connected to the piston 41, passes through the «wall and the ram 48» of the large cylinder 46, goes to the hollow »49, and in the future 8 ⁇
• the mold support member 51 is supported, and the left bran of the S support member 51 projects toward the hollow tube 49 or is guided by a retireable bell.
• the rod 42 cuts off the oil chamber 47.
• the minute plays the cylinder 48n of the piston 48a.
• a planner rail 52 extending downwardly from the hollow ram 48 at the bottom (right end) of the hollow ram 48 is fixedly supported, and a cylinder 3 ⁇ 43 ⁇ 4C for a “plate drive” is supported by the lower fiber.
• the cylinder mounting St C has a cylinder 54 with a piston 58 fitted to it, and a rod 55 with a rod 55 attached to the piston 58.
• a support plate 53 is supported by the vehicle, and can be moved up and down by a guide rail 52.
• the movable mold 51 a is supported by the right support of the mold support 51.
• a screw shaft 71 is formed in the body at the tip of the ⁇ -shaped rod 42, and it is exploded into the screw hole 72 of the mold support »material 51. Is done. Then, in order to reduce the looseness and looseness of the explosion » the mold support» material 51 is provided with a cutout 7 4 across the screw hole 7 2, and the cutout 7 4 is to be cut. A port 73 extending parallel to the screw ring 71 is attached to the bran. As a result, the stroke range of the katsuru mold 51a due to the dimensions of the kana mold 51a and the fixed mold 62a can be raised.
• FIG. 5 the work of the apparatus of the present invention will be described. In the state shown in FIG.
• the mold 51 is separated from the fixed mold 62 a and the molded product is taken out.
• the oil chamber 43 of the fast-forward cylinder 40 is used as the hydraulic pressure source and the oil chamber 44 is oil-planted.
• the piston 41 is pushed to the right, and the rod 41 supports the mold support 51 and the movable mold 51a quickly to the fixed mold 62a.
• the ram 48 does not move, and the next support member 51 protrudes from the hollow ⁇ 49 of the ram 48.
• the ram 48 and the fast-forward piston 41 The mold support »material 51 of the movable mold 51 a is fast-forwarded independently of the ram 48, and then the mold support» material 51 and the ram 48 are formed. Very large kneading force is transmitted to the movable mold 51a. Therefore, it is not necessary to move the ram 48 in the rapid traverse path as in the conventional case, so that the ram 48 can be moved slightly by the mold kneading allowance (usually a few M is sufficient. With a small supply of pressurized oil needed for a few hundred a ⁇ , for example, 700 ⁇ ⁇ ), a generous pulsating force can be obtained, and it is useful for saving power.
• the mold supporting member 51 quick stop of the mold supporting member 51 is effective, and a quick rise of the kneading force can be obtained.
• the mold kneading force is generated »The entire structure is a hydraulic plow mechanism, and no mechanical lubrication is required. Therefore, it does not require lubrication, so it is simple. Therefore, there are few failures and can withstand long-term use.
• the present invention has a simple configuration because the mold mounting cylinder hide B and the fast-forward cylinder mount A are arranged on the same center line.
• the ram 4 8 of the cylinder crab B with a mold rod is used. »The stroke is short, so processing is easy, and the parallelism of the mold to the stroke is small.
• the parallelism or ring degree of the two molds must be kept constant without any intention of ⁇ -year S conversion. Can be maintained suddenly.
• the middle plate 53 interposed in the shadow of the lumber 51 is configured to move up and down. This can be done by moving the work horizontally, or 5 3 is supported on the ram 4 8 with a hole, and the hydraulic cylinder is used to rotate the ram and the die support » Configure it as follows.
• a plurality of S fast-forward cylinders S concealed A are arranged parallel to the side of the cylinder concealed cylinder B, and in this case, 3 does not need to have a special bifurcated shape, and a rectangular shape can be adopted.
• Guide rails 52 that allow the inner covering plate 5 3 to go into and out of the ram 48 and the holy support ⁇ material 51 are fixed to the end face of the ram 48, as shown in Fig. 8. Supported.
• the other configurations are the same as those in FIG. 3 shown in FIGS. 3 to 5, and the common components are denoted by the same reference numerals. Even in this implementation, the working stroke of the ram 48 is small, and therefore, the overall length (dimension of the ram in the center tilt direction) of the moulding mist is reduced. be able to.
• the fast-forward cylinder device A is arranged in the piston 48a and the hollow of the ram 48. That is, the fast forward cylinder A of the cylinder A of the cylinder concealment A is fixed to the * 48 of the cylinder 48 a, and the port protruding from the piston 41 fitted on the cylinder 40.
• the head of the head 4 2 is the crab support »The hollow of the material 5 1» The ball player 2
• Inner rail 52 is fixed, and this is used for the relay board drive cylinder.
• the central tower 5 3 driven by the device C is supported
• composition of the foam is similar to that shown in Figs. 3 to 5.
• the stroke is slight, and the movable mold 51a is moved from the fixed mold.
• the ball right hand 2 7 is a fast forward cylinder concealed A rod 4 2
• the mold kneading hydraulic device according to the present invention is an injection molding press machine.
• a movable mold As a device for performing the operation, a movable mold or

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

Applications Claiming Priority (1)

Publications (1)

Family

ID=11669070

Family Applications (1)

Country Status (2)

Cited By (2)

Citations (2)

Family Cites Families (6)

• 1983
  • 1983-01-20 JP JP755683A patent/JPS59133027A/ja active Granted
• 1984
  • 1984-01-20 WO PCT/JP1984/000012 patent/WO1984002877A1/ja unknown

Patent Citations (2)

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