JP4276960B2 - Method for molding a plurality of molded products and molding apparatus therefor - Google Patents

Description

  The present invention relates to a molding method for molding a plurality of molded products simultaneously and a molding apparatus therefor.

  Conventionally, for example, when molding an interior material composed of an interior material main body and small parts, a mold for injection-molding the interior material main body and small parts is provided, and supply of molten resin in each mold A molding method and molding apparatus for an interior material in which the gate for the interior is connected to the same resin supply source, and the interior material body and the small parts are simultaneously injection compression molded by both molding dies are known (for example, Patent Document 1).

A plurality of interior materials can be simultaneously molded by the molding method and the molding apparatus.
Japanese Patent Laid-Open No. 9-169038

  However, in the conventional method for molding an interior material and its molding apparatus, the supply balance of the molten resin is lost between the molding dies, and there is a tendency that a uniform molding pressure cannot be applied. For this reason, if the amount of the supplied resin is less than the required capacity, a lack of thickness tends to occur particularly in a resin molded product having a complicated shape. On the other hand, when the capacity is larger than the required capacity, the slide structure may not work normally due to the loss of the pressure of the molten resin when the slide mold is provided. If only one mold has a large amount of supplied resin, the movable mold may tilt and adversely affect the resin flow.

  The present invention has been made in view of such points, and the object of the present invention is to uniformly mold the molten resin between the molding surfaces by devising the configuration of the movable mold that forms the molding surfaces. The object is to form a molded article of stable quality by applying pressure.

  In order to achieve the above object, according to the present invention, a plurality of divided molds are provided in the movable mold, and the divided molds are held individually movable.

Specifically, in the first invention, a fixed mold having a plurality of molding surfaces and a molding surface that can be fitted to each molding surface of the fixed mold, and a predetermined pressure is applied to the molding surface. Sometimes it has a plurality of divided molds that are individually movable by the load adjusting means, and is composed of a movable mold that can be brought into contact with and separated from the fixed mold, and a molten resin supply gate that communicates with the resin supply means Provided with a mold that molds a plurality of molded products having different shapes that are opened on each molding surface of the fixed mold ,
The load adjusting means is a hydraulic cylinder having a cylinder area corresponding to the shape of the molding surface of each split mold,
A liquid supply pipe is connected to the side of each cylinder that pushes the piston rod so that the corresponding split mold approaches the fixed mold when liquid is supplied, and the liquid supply pipe is connected to prevent backflow of liquid. A hydraulic circuit having a function and a pressure adjustment function is individually provided,
On the side where the piston rod of each cylinder is pushed back , prepare a molding device to which a liquid discharge pipe for discharging the liquid in the cylinder is connected ,
In a state where the mold is opened the upper SL mold, by feeding the liquid to the liquid supply line, in advance of each split of the movable die, the position of the molding surface to the resin supply amount set in advance when clamping of the mold than the reference position serving as to set to a predetermined amount of protrusion on the fixed mold side,
While the upper Symbol mold movable type is brought closer to the fixed mold fitted with each molding surface of the fixed mold and the respective division type of the molding surface by the resin supplying means a molten resin from the gate of the respective molding surface supplied,
While the movable molds are approaching the fixed mold and during mold clamping, the liquid supply pipe continues to be supplied with liquid, and the movable mold is divided according to the amount of molten resin supplied. A plurality of molded products are molded at the same time so as to be pushed back .

  According to the above configuration, even if the supply amount of the molten resin is non-uniform for each molding surface, the split mold is more than the reference position on the molding surface to which more molten resin is supplied than the preset resin amount. On the other hand, on the molding surface to which a molten resin less than a preset amount of resin is supplied, the split mold is originally pushed out from the reference position, so the split mold is pushed back slightly. In this way, since the molding pressure between the molding surfaces is kept uniform, the tilt of the movable mold can be prevented without being affected by the shape of the molding surface, the temperature of the supplied resin, etc., and stable quality The resin molded product can be molded. In addition, when a slide mold is used, pressure is not generated more than necessary on the molding surface, so that the slide structure can function normally.

In addition, according to the above configuration, even if liquid continues to flow through the liquid supply pipe, the pressure adjustment function of the hydraulic circuit prevents the cylinder from being damaged by preventing excessive pressure in each cylinder. In addition, it is possible to maintain a constant pressure in each cylinder. Because each cylinder can adjust the pressure applied to the molten resin in the molding surface for each split mold, even if the difference in shape (projection area, depth, etc.) between the molding surfaces is significant, the molten resin On the molding surface where the amount of resin supplied is larger than the preset amount of resin, the piston in the cylinder is pushed and the pressure in the cylinder becomes higher than the set pressure of the pressure adjustment function of the hydraulic circuit, and the piston rod in the cylinder is pushed out. The oil on the (piston head side) is discharged through the pressure adjustment function of the hydraulic circuit until the oil becomes equal to the set pressure, and the split mold is pushed back from the reference position. On the other hand, even on the molding surface where the molten resin is supplied in an amount smaller than the preset resin amount, the split mold is originally pushed out from the reference position, so a small amount of oil in the cylinder is discharged and the split mold is pushed back slightly. It is. Thus, sufficient pressure can be applied to each molding surface, and variations in the quality of the molded product can be prevented.

In the second invention, before the fixed mold and the movable mold of the molding mold approach, the skin material provided on at least a part of the molded product is set between the molding surfaces of the fixed mold and the movable mold. Then, the molded product is molded by fitting the molded surfaces by the approach of the fixed mold and the movable mold, and at the same time, the skin material and the molded product are bonded together.

  According to the above configuration, when the skin material is affixed to the molded product, the split mold is pushed back even if the amount of the molten resin exceeds the preset amount of resin, so that the skin material is pressed more than necessary. There is no. For this reason, the skin material is not pressurized and does not hurt.

In the third invention, the skin material includes a foam layer. That is, the foam layer of the skin material is weak against pressure and easily deforms by heat. However, in the present invention, the pressure applied to the skin material is weakened by pushing back the split mold, so that the skin material is not damaged.

In 4th invention, the said molded article is a panel for decorating above the door trim of a motor vehicle. According to this configuration, the effect of the present invention is exhibited when a plurality of decorative panels on the upper side of the door trim of the automobile are simultaneously formed.

In a fifth aspect of the invention, there is provided a fixed die having a plurality of molding surfaces, and a molding surface that can be fitted to each molding surface of the stationary die, and a load adjusting means when a predetermined pressure is applied to the molding surface. A plurality of split molds that are individually movably held by the movable mold, each having a movable mold that can be brought into and out of contact with the fixed mold, and a molten resin supply gate that is opened on each molding surface of the fixed mold And a mold for molding a plurality of molded products having different shapes ,
And a resin supply means for supplying a molten resin on SL molten resin feed gate,
The load adjusting means is a hydraulic cylinder having a cylinder area corresponding to the shape of the molding surface of each split mold,
A liquid supply pipe is connected to the side of each cylinder that pushes the piston rod so that the corresponding split mold approaches the fixed mold when liquid is supplied, and the liquid supply pipe is connected to prevent backflow of liquid. A hydraulic circuit having a function and a pressure adjustment function is individually provided,
A liquid discharge pipe for discharging the liquid in the cylinder is connected to the side where the piston rod of each cylinder is pushed back.
Each split type upper Symbol movable type, while mold opening the mold, by feeding the liquid to the liquid supply pipe, the molding surface relative to beforehand resin feed amount set in advance when clamping of the mold Set so as to protrude by a predetermined amount from the reference position, which is a position, to the fixed mold side, while the movable mold of the molding mold approaches the fixed mold and fits the molding surfaces to each other by the resin supply means. When the molten resin is supplied from the gate of the molding surface, the movable molds are moved closer to the fixed mold and are clamped so that they are pushed back in accordance with the supply amount of the molten resin. The liquid supply to the liquid supply pipe is continued, and a plurality of molded products are formed at the same time.

  Also in the above configuration, the same effect as the first invention can be obtained, and a molded product molding apparatus for molding a molded product of stable quality can be obtained.

As described above, in the first and fifth inventions, the movable mold of the mold is brought close to the fixed mold, and the molding surfaces of the movable molds and the molding surfaces of the fixed mold are fitted. At times, the pressure applied to the molding surface is adjusted by pushing back the split mold in accordance with the amount of molten resin supplied. For this reason, the molding pressure between each molding surface is kept uniform, and the molded product of the stable quality can be shape | molded. Further, while the mold is being clamped, the liquid is continuously supplied to the liquid supply pipe, and the backflow of the liquid in the cylinder is prevented and the pressure is adjusted by the hydraulic circuit. For this reason, it is possible to sufficiently press the molten resin on each molding surface while preventing the cylinder from being damaged, thereby preventing quality variations.

In the said 2nd invention, the said skin material and a molded product are bonded together integrally while shape | molding the said molded product. In the third aspect of the invention, a foam layer is further provided on the skin material. According to these inventions, since the molten resin is appropriately pressurized, the skin material is not pressurized and hurt, and the effects of the present invention are remarkably exhibited.

In the said 4th invention, when the said molded article was used as the decoration panel above the door trim of a motor vehicle, when forming several decoration panels simultaneously, the effect of this invention is exhibited.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the following embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

-Configuration of molding equipment-
FIG. 1 shows a molding apparatus 1 for a molded product according to an embodiment of the present invention. This molding apparatus 1 simultaneously molds a plurality of decorative panels 3 on the door trim 2 as the molded article shown in FIG. is there. The decorating panel 3 is made of a resin such as PP (polypropylene resin), for example, and constitutes the upper end portion of the door trim 2, and a decorating skin material 4 is integrally attached to the surface thereof.

  The skin material 4 is formed, for example, in a separate process with an acrylic resin as the outermost layer, a lower layer as a sheet on which a wood grain pattern or a marble pattern is described, and a lowermost layer as a TPO (polyolefin soft resin) layer. It is a thing. In addition, the skin material 4 may have PVC (vinyl chloride resin) as an outermost layer and a PP foam layer in the lower layer.

The said shaping | molding apparatus 1 can shape | mold simultaneously the panel 3 for decorating of several (4 in this embodiment) different shape with the shaping | molding die 10. FIG . Decorative panel 3 to be formed simultaneously is because a different shape, notably the effect of the present embodiment is exhibited.

  The molding die 10 is disposed so as to be movable up and down above the lower die 12, that is, to be movable toward and away from the lower die 12. It consists of an upper die 22 as a movable die attached and fixed to the upper surface plate 21.

  Four lower mold forming surfaces 13 are formed on the upper surface of the lower mold 12. A gate 14 for supplying the molten resin 5 is opened on the lower mold forming surface 13. Each of these gates 14 is provided at the downstream end of a branch passage 15 constituting a molten resin supply passage (hot runner) for supplying the molten resin 5, and the upstream end of the branch passage 15 is in the lower mold 12 of the mold 10. After gathering in the collecting passage 16, the collecting passage 16 extends outward from the side surface of the lower mold 12, and then the upstream end is connected to a resin injection device (not shown) as resin supply means. Although not shown, for example, an opening / closing valve for supplying and stopping the resin is disposed in the branch passage 15, and the molten resin 5 measured by the resin injection device and heated and melted with a heater is collected into the collecting passage 16 and Pressure is fed to the gate 14 of the lower mold 12 through each branch passage 15 and discharged from the gate 14 to the lower mold forming surface 13.

  On the other hand, the upper mold 22 includes four divided molds 24 each having a divided mold forming surface 23 that can be fitted to each lower mold forming surface 13 of the lower mold 12 by a cylinder 25 as a load adjusting means. Are held in a state of being individually suspended. Further, the molding surface 23 of each split mold 24 of the upper mold 22 is configured so that the skin material 4 molded in advance in a separate process can be set.

  Therefore, when the upper mold 22 approaches the lower mold 12 by the downward movement and the respective lower mold forming surfaces 13 and the respective divided mold forming surfaces 23 are respectively fitted, the respective molding surfaces have a predetermined mold clearance. A molding cavity 31 (shown in FIG. 4) is formed between 13 and 23 and is a sealed space for pressure-molding the decorative panel 3. The molding apparatus 1 has a structure in which the upper mold 22 and the lower mold 12 are provided with a contact surface outside the product of the molding mold 10 and the relative positions of the upper mold 22 and the lower mold 12 are determined.

Each cylinder 25 is made up of a hydraulic cylinder and has a cylinder area corresponding to the shape of the split mold forming surface 23 of the split mold 24. When each cylinder 25 is supplied with liquid, the piston rod 25a is inserted into the cylinder 25. A hydraulic circuit 27 having a liquid backflow prevention function and a pressure adjustment function is provided in the liquid supply pipe 26 connected to the side where the corresponding divided mold 24 is pushed out so as to approach the lower mold 12 . Via the hydraulic circuit 27, the liquid supply pipe 26 of each cylinder 25 is connected to an upstream hydraulic pipe 29. Further, on the side to push back the piston rod 25a of each cylinder 25, the piston rod 25a is connected liquid discharge pipe 28 for discharging the liquid in the cylinder when pushed, the liquid discharge pipe 28 of this downstream pressure It is connected to the pipe 30. As a result, the inside of the cylinder 25 can be kept so as not to exceed the pressure set in the hydraulic circuit 27. The liquid is supplied from the upstream hydraulic pipe 29 to the cylinder 25 through the hydraulic circuit 27 even when the upper mold 22 is approaching the lower mold 12 and when the mold is clamped. Yes.

  That is, each of the divided molds 24 supplies liquid to the cylinders 25 before contacting the molten resin 5 in advance (before the upper mold 22 of the mold 10 approaches the lower mold 12), and the piston rod 25a It is set in the extended state. At this time, as shown in FIG. 4, a predetermined resin supply amount determined for each split mold molding surface 23 (resin as set as intended to form the decorative panel 3 having a predetermined thickness) The maximum stroke of the cylinder is set so as to be held in a state of projecting by the projecting amount h1 on the lower mold 12 side from the reference position h0 of the molding surface 23 with respect to the supply amount). The projection amount h1 has an optimum value in advance for each divided die 24 in consideration of variations in the amount of molten resin 5 supplied in the range of 0.5 mm to 2.0 mm on the lower die 12 side from the reference position h0. Is set.

  The upper surface plate 21 to which the upper mold 22 of the molding die 10 is attached and fixed is drivingly connected to a lifting cylinder (not shown) having a vertical cylinder axis. The mold 22 is moved up and down to perform pressure molding with the mold 10.

  Then, the upper mold 22 of the mold 10 is moved downward by the elongating operation of the elevating cylinder so that the divided mold forming surface 23 of each divided mold 24 approaches the lower mold forming surface 13 of the corresponding lower mold 12. The gate 14 of the lower mold 12 is formed by the resin injection device immediately before the fitting between the molding surfaces 13 and 23, that is, in a state where the molding surfaces 13 and 23 are not fitted to each other and a cavity is not formed between the molding surfaces 13 and 23. The molten resin 5 is supplied from the above, and then the molding surfaces 13 and 23 are fitted with each other while the cylinders 25 are pushed back, and the molds are clamped, so that an optimum pressure is applied to the molten resin 5 between the molding surfaces 13 and 23. The decorative panel 3 is simultaneously molded while being added.

-Molding method-
Next, a method for forming the decorative panel 3 using the forming apparatus 1 having the above configuration will be described. First, at the start of operation, the lifting cylinder in the molding apparatus 1 is contracted and the upper mold 22 of the mold 10 is raised.

  Next, the skin material 4 molded in advance in a separate process is set on the molding surface 23 of each divided mold 24 of the upper mold 22.

  Next, a liquid is supplied to the upstream hydraulic piping 29, and the piston rod 25a in each cylinder 25 of each split mold 24 is set to the maximum stroke in advance. At this time, each divided mold 24 is held in a state in which the molding surface 23 is projected by the projection amount h1 on the lower mold 12 side from the reference position h0 of the molding surface 23. Thereafter, the liquid is continuously supplied to the upstream hydraulic pipe 29, and the supplied liquid is held at the set pressure by the hydraulic circuit 27.

  Next, the upper die 22 is moved downward by the elongating operation of the elevating cylinder to approach the lower die 12.

  Next, immediately before the molding surfaces 13 and 23 of the molding die 10 are fitted to each other, the molten resin 5 melted by the resin injection device is passed through the collecting passage 16 of the lower die 12 and the branch passages 15 of the lower die 12. The molten resin 5 is supplied from the gate 14 by being pumped to the gate 14.

  Next, when the upper mold 22 is further moved downward and the molding surfaces 13 and 23 are fitted to each other, the supplied molten resin 5 is placed under the skin material 4 in the cavity formed between the molding surfaces 13 and 23. Be trapped.

Thereafter, by further downward movement of the upper mold 22, the mold 10 is clamped while leaving a slight clearance between the lower mold and the upper mold. At this time, even if the supply amount of the molten resin 5 becomes uneven for each of the molding surfaces 13 and 23, the resin of the molten resin 5 is formed on the molding surface 23 in which the molten resin 5 is supplied in a predetermined amount or more. Under pressure, the liquid in the cylinder 25 is discharged to the downstream hydraulic pipe 30 via the hydraulic circuit 27, the piston rod is pushed back, and the molding surface 23 of the split mold 24 is, for example, 0.5 mm or more from the reference position h0. It is pushed back to the range of 1.0 mm or less (indicated by h2 in FIG. 4). On the other hand, since the split mold 24 is originally pushed out from the reference position h0 by the projection amount h1 on the molding surface 23 to which the molten resin 5 smaller than the preset resin amount is supplied, the force applied to the cylinder 25 is As a result, a small amount of liquid is discharged from the cylinder 25 and the split mold 24 is pushed back slightly. The position of the molding surface 23 at that time is slightly below the reference position h0. In this way, the molding pressures between the molding surfaces 13 and 23 are kept uniform to apply pressure, and the four decorative panels 3 are simultaneously attached so that the skin material 4 is integrally bonded to the decorative panel 3. Mold.

  Thereafter, the molten resin 5 is cured by cooling for a predetermined time in the above-mentioned mold-clamped state, and then the upper mold 22 is moved up and down by the contraction operation of the elevating cylinder to open the mold 10 to open the mold 4 Each of the three decorative panels 3 is taken out from the mold 10.

-Effect of the embodiment-
When the upper mold 22 of the mold 10 is brought close to the lower mold 12 and the molding surfaces 23 of the divided molds 24 of the upper mold 22 and the molding surfaces 13 of the lower mold 12 are fitted, the molten resin 5 is supplied. The pressure applied to the molding surfaces 13 and 23 is adjusted so as to push back the split mold 24 in accordance with the amount. For this reason, the molding pressure 3 between the molding surfaces 13 and 23 can be kept uniform, and the decorative panel 3 having a stable quality can be molded.

  Further, while the mold 10 is being clamped, the liquid is continuously supplied to the upstream side hydraulic piping 29, and the hydraulic circuit 27 prevents the back flow of the liquid in the cylinder 25 and adjusts the pressure. For this reason, it is possible to sufficiently press the molten resin 5 on the molding surfaces 13 and 23 while preventing the cylinder 25 from being damaged, thereby preventing quality variations.

  Furthermore, at the same time that the decorative panel 3 is molded, the skin material 4 is integrally bonded to the decorative panel 3, but according to the present embodiment, the molten resin 5 is appropriately pressurized and the skin material 4 is applied. Since the pressure does not hurt due to excessive pressure, the effect of the present invention is remarkably exhibited.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

That is, in the above embodiment, a structure for determining the relative positions of the upper mold 22 and the lower mold 12 is provided between the upper mold 22 and the lower mold 12 in order to apply a sufficient pressure to the molten resin 5 as in the prior art. However, the structure for determining the relative position of the upper mold 22 and the lower mold 12 is not necessarily provided. By adjusting the protrusion amount h1 of the cylinder 25 and the pressure of the hydraulic circuit 27, it is possible to cope with variations in the supply amount of the molten resin 5, so that even if there is no structure for determining the relative positions of the upper mold 22 and the lower mold 12, the molten resin 5 Sufficient pressure can be applied .

Also, in the above embodiment, when it is described a case where a plurality simultaneously molded decorative panel 3 of a motor vehicle door trim 2, the present invention, a plurality molding the decorative panel 3 other than the molded article Alternatively, the present invention can also be applied to the case where a plurality of molded products having only a portion of the skin material 4 and a plurality of molded products having no skin material 4 are simultaneously molded.

  Furthermore, in the above embodiment, a hydraulic cylinder is used as the load adjusting means, but a cylinder that operates by water pressure may be used.

  Further, even when the upper mold is a fixed mold and the lower mold is a movable mold, the same effect as the above embodiment can be obtained.

  As described above, the present invention is useful for a molded product molding method and a molding apparatus for molding a plurality of molded products simultaneously.

It is a side view which cut | disconnects and shows a part of shaping | molding apparatus of the molded article concerning embodiment of this invention. It is a side view of the door trim provided with the panel for decorating. FIG. 2 is a view corresponding to FIG. 1 during mold clamping. It is explanatory drawing which shows the positional relationship of a split mold surface.

1 Molding device 3 Decorative panel (molded product)
4 Skin material 5 Molten resin 10 Mold 12 Lower mold (fixed mold)
13 Lower mold forming surface 14 Gate 22 Upper mold (movable type)
23 split mold forming surface 24 split mold 25 cylinder (load adjusting means)
26 Liquid supply pipe 28 Liquid discharge pipe 27 Hydraulic circuit (with backflow prevention function and pressure adjustment function)
29 Upstream hydraulic piping 30 Downstream hydraulic piping h0 Reference position

Claims (5)

A fixed mold having a plurality of molding surfaces, and a molding surface that can be fitted to each molding surface of the fixed mold, and can be individually moved by a load adjusting means when a predetermined pressure is applied to the molding surface. It has a plurality of held divided molds, and consists of a movable mold that can be brought into and out of contact with the fixed mold, and a molten resin supply gate that communicates with the resin supply means is opened on each molding surface of the fixed mold It has a mold that molds multiple molded products with different shapes ,
The load adjusting means is a hydraulic cylinder having a cylinder area corresponding to the shape of the molding surface of each split mold,
A liquid supply pipe is connected to the side of each cylinder that pushes the piston rod so that the corresponding split mold approaches the fixed mold when liquid is supplied, and the liquid supply pipe is connected to prevent backflow of liquid. A hydraulic circuit having a function and a pressure adjustment function is individually provided,
On the side where the piston rod of each cylinder is pushed back , prepare a molding device to which a liquid discharge pipe for discharging the liquid in the cylinder is connected ,
By supplying a liquid to the liquid supply pipe in a state where the molding die is opened, each of the movable molds can be divided into a position of the molding surface with respect to a resin supply amount set in advance when the mold is clamped. Set so that it protrudes a fixed amount from the reference position
The molten mold is supplied from the gate of each molding surface by the resin supply means while the movable mold of the molding die is brought close to the fixed mold and the molding surface of each of the divided molds is fitted to each molding surface of the fixed mold. And
While the movable molds are approaching the fixed mold and during mold clamping, the liquid supply pipe continues to be supplied with liquid, and the movable mold is divided according to the amount of molten resin supplied. A method for molding a molded product, wherein a plurality of molded products are molded at the same time so as to be pushed back . In the shaping | molding method of the molded article of Claim 1 ,
Before the fixed mold and the movable mold of the molding mold approach, set the skin material provided on at least a part of the molded product between the molding surfaces of the split mold of the fixed mold and the movable mold,
A molding method for molding a molded product, wherein the molded product is molded by fitting the molding surfaces by the approach of the fixed mold and the movable mold, and at the same time, the skin material and the molded product are bonded together. In the molding method of the molded product according to claim 2 ,
A method for forming a molded product, wherein the skin material includes a foam layer. In the shaping | molding method of any one of Claims 1-3 ,
A method for molding a molded product, wherein the molded product is a decorative panel on an upper side of a door trim of an automobile. A fixed mold having a plurality of molding surfaces, and a molding surface that can be fitted to each molding surface of the fixed mold, and can be individually moved by a load adjusting means when a predetermined pressure is applied to the molding surface. a plurality of split held, possess a movable type that can contact and separation with respect to the fixed mold and an opening molten resin feed gate on each molding surface of the fixed type, shape different phases A mold for molding a plurality of molded articles ;
A resin supply means for supplying the molten resin to the molten resin supply gate;
The load adjusting means is a hydraulic cylinder having a cylinder area corresponding to the shape of the molding surface of each split mold,
A liquid supply pipe is connected to the side of each cylinder that pushes the piston rod so that the corresponding split mold approaches the fixed mold when liquid is supplied, and the liquid supply pipe is connected to prevent backflow of liquid. A hydraulic circuit having a function and a pressure adjustment function is individually provided,
A liquid discharge pipe for discharging the liquid in the cylinder is connected to the side where the piston rod of each cylinder is pushed back.
Each of the movable molds has a mold surface position with respect to a resin supply amount set in advance when the mold is clamped by supplying liquid to the liquid supply pipe in a state where the mold is opened. Each mold is set by the resin supply means while the movable mold of the mold is close to the fixed mold so that the molding surfaces are fitted to each other. When the molten resin is supplied from the gate of the surface, the movable mold is approached toward the fixed mold and is clamped so that it is pushed back corresponding to the supply amount of the molten resin . An apparatus for molding a molded product, wherein the liquid supply to the liquid supply pipe is continued to form a plurality of molded products simultaneously.

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