JP3733959B2 - Foam molding equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a foam molding apparatus capable of continuously producing urethane foam molded articles and the like.
[0002]
[Prior art]
Foamed urethane molded products widely used as various cushioning materials are molded by injecting a predetermined amount of liquid foamed resin into the mold cavity and filling the cavity with porous resin by expansion due to foaming. Is done. Therefore, in the production line, there are a process for injecting foamed resin into the mold, a curing process for encouraging foam molding by controlling the temperature of the mold after closing the mold, and a demolding process for demolding the molded product by opening the mold after curing. Necessary.
[0003]
For example, as a method for continuously producing a foam-molded product, a conveyor-type production line is widely used as described in FIG. That is, a plurality of molds are arranged on a conveyor that circulates in the horizontal direction, and a demolding zone, an injection zone, and a cure zone are arranged in this order along the conveyor. In general, in the injection zone, the foamed resin is injected from the injection nozzle while the mold is moving together with the conveyor. Then, the foam molding is completed in the cure zone, and the foam molded product is generally demolded in the demolding zone manually by the operator.
[0004]
In Japanese Patent Laid-Open No. 54-073862 or Japanese Patent Laid-Open No. 07-124965, a mold mounting base and a mold are placed in a radial shape on a horizontal rotation shaft, and foamed resin is placed in a stopped or rotated state. An apparatus for producing a foamed molded article for injection, curing and demolding is described. According to such a vertical apparatus, it is possible to produce many foamed molded products even in a relatively narrow space.
[0005]
By the way, in foam molding, it is desirable that the liquid foamed resin injected into the mold is foamed from the lowest place in the cavity to a higher place where gas is easily released. Therefore, it is desirable to inject the liquid foamed resin into the lower part of the cavity. This is because, if the liquid foamed resin is not supplied well to the low cavity area, problems such as air traps and undercuts occur in the molded product. In insert molding in which inserts are placed in a mold and foamed, liquid foamed resin wraps around the insert and merges. There is also. Therefore, the mold is designed in consideration of the wraparound of the foamed resin.
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-109315 [Patent Document 2]
JP 54-073862 [Patent Document 3]
JP 07-124965 A [0007]
[Problems to be solved by the invention]
In the case of a conventional conveyor system that circulates in the horizontal direction, there is a problem that an area for the mounting base of the molding die originally planned is required. In other words, if the production volume decreases, it is inevitable to produce missing teeth, but in this case, it is necessary to wait for work such as demolding until the reduced mold dies around the conveyor. Very inefficient.
[0008]
In automobile interior parts, various shapes of foam molded products with an emphasis on design are used. For this reason, in the conventional technique described above, the flow of the foamed resin into the mold becomes insufficient, and there are cases in which defects such as air traps and lack of thickness occur in the molded product. Also, for example, when molding a headrest, foam molding is performed with the core material disposed in the mold, but the foamed resin expands and merges around the core material, so the flow before expansion is insufficient. If there is, a void may occur at the junction.
[0009]
In order to avoid the above problems, it is desirable to promote the flow of the liquid foamed resin by inclining the mold immediately after the foamed resin is injected. However, in the conventional production line, there is a limit to the angle at which the mold can be inclined in consideration of interference between various members existing in the vicinity and the mold, etc. Further, each mold is inclined in the conventional production line. Providing the mechanism has a problem in terms of cost.
[0010]
In addition, the accuracy of individual molds varies, and molds for molding different molded products may be mixedly loaded on the same line. Therefore, each mold is inclined at an arbitrary angle and foamed. Although it is desirable to arbitrarily adjust the flow of the resin, the conventional technique has been difficult to cope with.
[0011]
Furthermore, although rotation type manufacturing apparatuses as described in Patent Documents 2 and 3 exist, rotation control considering the flow of foamed resin in the mold is not performed, and the quality is improved. There was a need.
[0012]
The present invention has been made in view of such circumstances, and can produce many foamed molded products even in a narrow space, and can be produced efficiently even in a small amount of production, and the flow of the foamed resin in the mold. An object of the present invention is to provide a foam molding apparatus that can be arbitrarily adjusted with individual molds.
[0013]
[Means for Solving the Problems]
A feature of the foam molding apparatus of the present invention that solves the above problems is that a plurality of mounting tables that can rotate around a horizontal rotating shaft and project radially from the rotating shaft, and molds that are respectively held on the mounting table And a rotating means for rotating the plurality of mounting tables, and the foamed resin to the injection molding die held on the injection mounting table at the injection position when the plurality of mounting tables respectively become the injection positions of the liquid foam resin A foam molding apparatus that enables injection of
The rotating means allows the injection mold to be temporarily stopped at an arbitrary angle together with the injection mounting table between the injection of the foamed resin into the injection molding die at the injection position and the time when the subsequent mounting table reaches the injection position. It has a stop means.
[0014]
The rotating means preferably has input means capable of setting the arbitrary angle for each mounting table. Further, it is desirable that the rotating means has an input means capable of setting a time for pausing at an arbitrary angle for each mounting table. Furthermore, the foam molding apparatus of the present invention includes a pressing plate that has a pressing surface perpendicular to the rotating shaft and is fixed to the rotating shaft and rotates in synchronization with the rotating shaft, and a pressing surface when temporarily stopped at an arbitrary angle. It is preferable to further include a pressing stopper that fixes the injection mounting table via the pressing plate by pressing.
[0015]
Another feature of the foam molding apparatus of the present invention that solves the above-described problems is that a plurality of mounting tables that are rotatable about a horizontal rotating shaft and project radially from the rotating shaft, and held by the mounting table, respectively. And an injection mold held by the injection mounting table at the injection position when the plurality of mounting tables become the injection positions of the liquid foamed resin, respectively. A foam molding apparatus that enables injection of foam resin into
The rotation means is provided with transmission means that can arbitrarily adjust the rotation speed of the injection mounting table between the injection of the foamed resin and the arrival of the next mounting table at the injection position.
[0016]
In the case of this foam molding apparatus, it is desirable that the rotating means has an input means that can arbitrarily set the rotation speed of the injection mounting table for each mounting table.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
In the present specification, the mounting table at the injection position is referred to as an injection mounting table, and a molding die held on the injection mounting table is referred to as an injection molding die.
[0018]
The foam molding apparatus of the present invention is a so-called longitudinal rotation having a plurality of mounting tables that can rotate around a horizontal rotating shaft and project radially from the rotating shaft, and a rotating means that rotates the mounting tables. This is a mold forming apparatus. Therefore, it is possible to produce in a small space, and the number of production per unit area is markedly improved compared to the conveyor system.
[0019]
In the foam molding apparatus of the present invention, when one mounting table is at the injection position, the foamed resin is injected from the injection nozzle into the injection mold held by the injection mounting table. The rotating means has stop means that allows the injection mold to be temporarily stopped at an arbitrary angle together with the injection mounting table until the next mounting table reaches the injection position. Therefore, in the temporarily stopped injection mold, the foamed resin flows by gravity according to the angle. Therefore, by adjusting the arbitrary angle, the foamed resin can be flowed in any direction, and the molded product has air flow. It is possible to prevent the occurrence of defects such as traps and undercuts.
[0020]
The plurality of mounting tables are configured to fix the plurality of mounting tables to one rotating shaft and rotate in synchronization with each other by the rotation of the rotating shaft. Therefore, since the angle of the mounting table at the set position of the insert or the demolding position of the molded product can be arbitrarily set, it becomes possible to vary the angle and height of the mounting table according to the height of the operator, It becomes a working environment friendly to the worker.
[0021]
Injection can be performed or the mold can be removed while the mounting table is rotating. However, the removal of the mounting table and the mold must be stopped when removing the mold, placing the insert, and injecting the foamed resin. Is desirable. That is, it is desirable that the stopping means can stop the rotation of the mounting table at the demolding position, the insert placement position, and the foamed resin injection position.
[0022]
This stop means can be stopped by an external input signal such as a servo system that can control the rotation position with a positioning unit that can be programmed using a rotary encoder or resolver that can detect the rotation angle, a stepping motor that is pulse controlled, a proximity switch, etc. A motor with a brake that is sequence-controlled as possible can be used. Note that a servo system is more preferable in order to improve stop accuracy and perform complicated control.
[0023]
The number of mounting tables is not particularly limited, and is generally about 2 to 8. However, 4 to 6 are preferable in consideration of the tiltable angle of the mounting table (about 60 ° at the maximum) and production efficiency. Further, as the rotation means, it is preferable that the rotation can be controlled using a servo motor, and it can be configured using a drive transmission unit such as a speed reducer or a timing belt. Alternatively, it can be intermittently rotated by a cam mechanism or the like.
[0024]
It is desirable that the rotating means has an input means that can set an arbitrary angle for temporary suspension for each mounting table. If it does in this way, the angle which stops temporarily according to the dispersion | variation in the precision of each shaping | molding die can be set, respectively. In addition, it is possible to cope with a case where molding dies for molding different types of molded products are mixedly mounted.
[0025]
It is also preferable that the rotating means has an input means that can set a time for pausing at an arbitrary angle for each mounting table. In other words, by adjusting the pause time, it is possible to adjust the time for the foamed resin to flow, enabling finer control and further preventing the occurrence of defects such as air traps and undercuts in the molded product. Can do. Further, adjustment according to variations in accuracy of individual molds becomes easier, and even if molds for molding different types of molded products are mixedly mounted, it is easy to cope with them.
[0026]
As this input means, a keyboard, touch panel, dial switch, volume switch, or the like that can arbitrarily input parameters for controlling the rotation means by human operation can be employed.
[0027]
Further, the rotation means may finely oscillate or vibrate the pouring table at that position when it is temporarily stopped at an arbitrary angle. By doing in this way, the fluidity | liquidity of a foamed resin may improve further.
[0028]
The foam molding apparatus of the present invention also has a pressing plate that has a pressing surface perpendicular to the rotating shaft and is fixed to the rotating shaft and rotates in synchronization with the rotating shaft, and presses the pressing surface when temporarily stopped at an arbitrary angle. It is preferable to further include a pressing stopper for fixing the injection mounting table via the pressing plate. In this way, it is possible to prevent backlash at the stop position caused by backlash of the drive transmission part of the rotating means such as the speed reducer and the timing belt, and looseness of the belt, and to stably flow the foamed resin. .
[0029]
Furthermore, since the surface on which the pressing stopper presses the pressing surface has a circular locus on the pressing surface, even if the pause angle is arbitrarily changed by forming the pressing surface at least in a ring shape along the locus It can be surely pressed. Therefore, the shape of the pressing plate is not particularly limited as long as it has at least a ring-shaped pressing surface. The pressing plate may be fixed to the rotating shaft and rotate in synchronization with the rotating shaft, and can be joined to at least one of the rotating shaft and the mounting table. In consideration of the stress acting when the pressing stopper presses the pressing surface, it is preferable to bond to a mounting table that can increase the bonding area.
[0030]
In another foam molding apparatus of the present invention, the rotation means can arbitrarily adjust the rotation speed of the injection mounting table from the injection of the foamed resin at the injection position until the next mounting table reaches the injection position. A suitable speed change means. If the rotation speed is increased, the change in the flow direction of the foamed resin in the casting mold is accelerated, and the flow amount is reduced. Also, if the rotation speed is reduced, the change in the flow direction becomes slower and the flow amount becomes larger. Therefore, by adjusting the rotation speed, it is possible to adjust the flow of the foamed resin, and it is possible to prevent the occurrence of defects such as air traps and lack of thickness in the molded product.
[0031]
As this speed change means, a servo system having a servo amplifier for realizing speed control, an inverter unit capable of changing the frequency by an external signal, or the like can be used. A servo system is more preferable for performing complex speed control.
[0032]
In this foam molding apparatus, it is desirable that the rotating means has an input means that can arbitrarily set the rotation speed of the injection mounting table for each mounting table. That is, the flow of the foamed resin can be adjusted by adjusting the rotation speed in accordance with the variation in accuracy of individual molds. In addition, it is possible to cope with a case where molding dies for molding different types of molded products are mixedly mounted.
[0033]
【Example】
Hereinafter, the present invention will be described specifically by way of examples.
[0034]
Example 1
FIG. 1 shows a perspective view of a foam molding apparatus according to an embodiment of the present invention. The foam molding apparatus includes a base 1, a pair of legs 2 erected vertically from the base 1, each having a bearing 20 at the top, and both ends rotatably supported by a pair of bearings 20 in a horizontal direction. The rotating shaft 21 extends, and four plate-like mounting tables 3a to 3d fixed to the rotating shaft 21 at an angle of 90 ° to each other. A servo motor 4 is connected to one end of the rotating shaft 21, and the rotating shaft 21 and the mounting tables 3 a to 3 d are rotated and stopped in the direction of the arrow in FIG. 1 by the servo motor 4.
[0035]
The four mounting tables 3a to 3d hold the molds 5a to 5d, respectively, and are rotated and stopped together with the mounting tables 3a to 3d. The molds 5a to 5d are composed of a first mold 50 and a second mold 51 that is closed with the first mold 50, and foam-molded with the core material, stay, and skin being inserted, so that the headrest of an automobile Is formed.
[0036]
The servo motor 4 is controlled by the control device shown in FIG. This control device includes a CPU 42 to which a touch panel 41 is connected, a CPU 42 and a positioning unit 40, a servo amplifier 44 connected to the positioning unit 40, and a RAM 45 connected to the CPU 42. Servo motor 4 is "HC-SF102B" (Mitsubishi Electric, 1.0Kw), positioning unit 40 is "A1SD75M3" (Mitsubishi Electric, assembled with sequencer rack), servo amplifier 44 is "MR-J2S-100B" (Mitsubishi Electric) And touch panel 41 uses “Pro-face GP477R-EG11” (manufactured by Digital).
[0037]
Based on the table stored in the RAM 45 and the input from the touch panel 41, the positioning unit 40 can stop the servo motor 4 at an arbitrary rotation amount and change the rotation speed at an arbitrary position during the rotation. It is possible.
[0038]
In the mounting table setting screen of the touch panel 41, as shown in FIG. 3, the type of molding molded by the molds 5a to 5d and the presence / absence of injection of foamed resin are input, and the corresponding curing time is set. “None” of the injection of the foamed resin means tooth missing production that is not performed with the corresponding mold.
[0039]
On the product type setting screen, the table stored in the RAM 45 is read and displayed as shown in FIG. In other words, for each type, it corresponds to the injection time, presence or absence of primary stop, relationship between rotation angle and speed, tilt angle of mounting tables 3a to 3d at the primary stop, and tilt angle and tilt angle of mounting tables 3a to 3d at the work position The rotation speed that has been displayed is displayed. Therefore, the operator selects and inputs each type set on the mounting table setting screen, and inputs it when there is a special change condition.
[0040]
First, the case where the kind 3 is manufactured with all the molds 5a to 5d will be described. In the case of the product type 3, as shown in FIG. 4, it is set to stop for 2.0 seconds at an inclination angle of 30 °. Therefore, the servo motor 4 is controlled to repeat rotation and stop as shown in FIG. That is, the rotation is stopped while the worker is performing mold removal, insertion, and the like, and the urethane foam resin is injected by operating the switch (not shown), and then the rotation is started. 30 °) The rotation is automatically paused at the rotated pause position. Then, after stopping for a predetermined time (2.0 seconds), the rotation is automatically started again, and when it rotates 90 ° in total from the previous stop state, the rotation is automatically stopped until the operator operates the switch next time. Continue to stop.
[0041]
At the position A shown in FIGS. 1 and 6, the injection mounting table 3 a is in a stopped state with the surface being a horizontal surface. The operator opens the second mold 51 held on the injection mounting table 3a in the direction of the arrow in FIG. After the molded product is removed from the mold, the core material, stay and skin are inserted and the temporary mold is closed. Thereafter, the operator operates a switch (not shown). Then, the injection nozzle 6 descends and is inserted into the injection mold 5a to inject a predetermined amount of foamed urethane resin, and then rises. When the injection nozzle 6 comes out of the mold 5, the injection port (not shown) of the injection mold 5a is closed by the elasticity of the skin, and the mold is completely closed.
[0042]
Then, the servo motor 4 is driven, the rotating shaft 21 rotates at a speed of 12 rpm, and the four mounting tables 3a to 3d are simultaneously driven to rotate. At this time, the servo motor 4 automatically pauses after rotating 30 °, and the paused state is maintained for 2 seconds. In the temporarily stopped state, as shown in FIG. 7, the injection mounting table 3a stops at an angle of 30 ° with respect to the horizontal line, and in the injection mold 5a held by the injection mounting table 3a, liquid foamed urethane The resin flows toward the first mold 50 side by gravity. By flowing in this way, it is possible to prevent problems such as air traps and missing parts from occurring in the molded product.
[0043]
After the temporary stop state has been maintained for 2 seconds, the servo motor 4 resumes rotating again, and after further 60 ° rotation, automatically stops completely. In this state, the mounting table 3d at the D position is in a horizontal state, and the operator performs the same operation as described above on the molding die 5d mounted thereon.
[0044]
The servo motor 4 rotates and stops in the same manner as described above, and stops by rotating 360 ° in total for about 480 seconds, so that the injection mounting table 3a makes a round and returns to the A position. Since foaming / curing of the urethane resin has been completed, the headrest that has undergone foam molding is removed from the A position.
[0045]
Therefore, according to the foam molding apparatus of the present embodiment, the liquid foamed urethane resin flows by gravity by the temporary suspension of the injection mounting table 3a at 30 ° with respect to the horizontal line for 2 seconds. Therefore, it is possible to prevent the occurrence of defects such as air traps and lack of thickness in the molded product.
[0046]
In addition, the angle and time at which the injection mounting table 3a is paused can be arbitrarily set on the product type setting screen, so by appropriately setting according to the shape of the molded product, the accuracy of the molding die, etc. Regardless of mold variation, it is possible to reliably prevent defects such as air traps and undercuts from occurring in the molded product.
[0047]
(Example 2)
The foam molding apparatus of this example is shown in FIG. In the foam molding apparatus of the present embodiment, circular pressing plates 7 are joined and fixed to both side surfaces of the four mounting tables 3a to 3d, and the cylinder devices 8 are held on the pair of leg portions 2, respectively. A pressing member 80 (pressing stopper) attached to the tip of the piston rod can press the surface (pressing surface) of the pressing plate 7. Other configurations are the same as those of the first embodiment. An elastic body is joined to the front end of the pressing member 80, and the impact during pressing is reduced.
[0048]
That is, in the foam molding apparatus of the present embodiment, when the injection mounting table 3a is temporarily stopped for 2 seconds in a state inclined by 30 ° with respect to the horizontal line, the pair of cylinder devices 8 are driven, and the pressing members 80 of the cylinder devices 8 are respectively moved. The surface of the pressing plate 7 is pressed. As a result, the mounting tables 3a to 3d are held by the pair of pressing members 80, and rattling is prevented, so that the flow of the urethane foam resin in the injection mold 5a is stabilized. Further, the portion of the pressing plate 7 that is pressed by the pressing member 80 draws a circular locus on the surface of the pressing plate 7, and the surface of the pressing member 80 is surely present along the locus. Therefore, even if the temporary stop angle is changed, the pressing plate 7 can be reliably pressed.
[0049]
Example 3
The foam molding apparatus of the present embodiment has the same configuration as that of the first embodiment except that the control content of the servo motor 4 is different. This embodiment relates to the case where the product type 9 in FIG. 4 is manufactured. The servo motor 4 is not temporarily stopped but the speed is varied and controlled as shown in the time chart of FIG.
[0050]
That is, after the urethane foam resin is injected at the position A in the stopped state, the rotation starts at a high rotation speed (15 rpm), and the rotation speed is reduced when the angle of the injection mounting table 3a is inclined by 20 ° with respect to the horizontal line. The rotation speed becomes small (5 rpm), and the rotation speed becomes large (15 rpm) when the angle of the injection mounting table 3a is inclined to 45 °. Accordingly, the urethane foam resin smoothly flows in the inclined direction in the injection mold 5a.
[0051]
Thereafter, the rotation speed increases again, and the rotation is stopped when the injection mounting table 3a reaches the B position (90 °). Even if it does in this way, the effect similar to Example 1 is show | played. Compared to the first embodiment, the deceleration and acceleration time for stopping can be omitted, which is effective when it is desired to shorten the rotational movement time.
[0052]
(Example 4)
The foam molding apparatus of the present embodiment has the same configuration as that of the first embodiment except that the control content of the servo motor 4 is different. The present embodiment relates to the case where the first and third embodiments are combined, and the servo motor 4 is controlled as shown in the time chart of FIG.
[0053]
That is, when the urethane foam resin is injected into the injection mold 5a at the A position in the stopped state, the rotation is started at a large rotational speed (15 rpm), and when the angle of the injection mounting table 3a is inclined by 20 ° with respect to the horizontal line, The rotational speed is decelerated to a small rotational speed (5 rpm), and when the angle of the injection mounting table 3a is inclined 45 °, the rotational speed is large (15 rpm). Accordingly, the urethane foam resin smoothly flows in the inclined direction in the injection mold 5a.
[0054]
Thereafter, the rotation speed again increases, the angle of the injection mounting table 3a stops at 80 ° with respect to the horizontal line, and the mounting table 3d is positioned 10 ° below the A position. As a result, the operator can easily remove the mold from the mold 5d and insert it.
[0055]
After the insertion is completed, the operator operates the switch to rotate, and stops again with the mounting table 3d in the horizontal position. Thereafter, urethane foam resin is injected into the mold 5d, and thereafter, it is rotationally driven in the same manner as in the first embodiment.
[0056]
In addition, when the mounting table 3c is in a horizontal state and the urethane foam resin is injected into the mold 5c, the rotation starts at a large rotational speed (15 rpm), and the angle of the mounting table 3c is inclined 20 ° with respect to the horizontal line. The rotational speed is decelerated. In this case, deceleration is performed in two stages. The mounting table 3b is rotated in the same manner as in the first embodiment, and one molding cycle is completed with the mounting table 3a rotated 360 °.
[0057]
Therefore, according to the foam molding apparatus of the present embodiment, the respective molds 5a to 5d can be arbitrarily switched between temporary stop and deceleration in an inclined state, and the deceleration conditions can be arbitrarily set. Therefore, even when molding errors or different types of molded products are molded, it is possible to arbitrarily adjust the flow of the liquid foamed urethane resin according to the respective molding dies.
[0058]
【The invention's effect】
That is, according to the foam molding apparatus of the present invention, the original function that can be efficiently produced in a narrow space is exhibited, and there is no need to newly add a mechanism for individually tilting the mold. Since the flow of the foamed resin inside can be arbitrarily adjusted by individual molds, it is possible to prevent the occurrence of defects such as air traps and lack of thickness in the molded product at low cost.
[Brief description of the drawings]
FIG. 1 is a perspective view of a foam molding apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram of a control device in a foam molding apparatus according to an embodiment of the present invention.
FIG. 3 is an explanatory diagram showing display contents of a touch panel in the foam molding apparatus according to an embodiment of the present invention.
FIG. 4 is an explanatory diagram showing display contents of a touch panel in a foam molding apparatus according to an embodiment of the present invention.
FIG. 5 is a drive time chart of a servo motor used in the foam molding apparatus of one embodiment of the present invention.
FIG. 6 is a side view of the foam molding apparatus according to an embodiment of the present invention in a completely stopped state.
FIG. 7 is a side view of the foam molding apparatus according to an embodiment of the present invention in a temporarily stopped state.
FIG. 8 is a perspective view of a foam molding apparatus according to a second embodiment of the present invention.
FIG. 9 is a drive time chart of a servo motor used in a foam molding apparatus according to a third embodiment of the present invention.
FIG. 10 is a drive time chart of a servo motor used in a foam molding apparatus according to a fourth embodiment of the present invention.
[Explanation of symbols]
3a to 3d: Mounting table 4: Servo motor 5a to 5d: Mold

Claims (6)

A plurality of mounting tables that are rotatable about a horizontal rotating shaft and project radially from the rotating shaft; a mold that is respectively held on the mounting table; and a rotating means that rotates the plurality of mounting tables. A foam molding apparatus that enables the injection of foamed resin into an injection mold held by the injection mounting table at the injection position when each of the plurality of mounting bases is at a liquid foam resin injection position. There,
The rotating means is configured to hold the injection mold together with the injection mounting table at an arbitrary angle between the injection of the foamed resin into the injection mold at the injection position and the time when the mounting table reaches the injection position. A foam molding apparatus characterized by having stop means that can be temporarily stopped. The foam molding apparatus according to claim 1, wherein the rotation unit includes an input unit that can set the arbitrary angle for each mounting table. 3. The foam molding apparatus according to claim 1, wherein the rotation unit includes an input unit capable of setting a time for temporarily stopping at the arbitrary angle for each mounting table. A pressing plate that has a pressing surface perpendicular to the rotating shaft and that is fixed to the rotating shaft and rotates in synchronization with the rotating shaft; and pressing the pressing surface when temporarily stopped at the arbitrary angle. The foam molding apparatus according to any one of claims 1 to 3, further comprising a pressing stopper for fixing the injection mounting table via a pressing plate. A plurality of mounting tables that are rotatable about a horizontal rotating shaft and project radially from the rotating shaft; a mold that is respectively held on the mounting table; and a rotating means that rotates the plurality of mounting tables. A foam molding apparatus that enables the injection of foamed resin into an injection mold held by the injection mounting table at the injection position when each of the plurality of mounting bases is at a liquid foam resin injection position. There,
The rotation means has a speed change means that can arbitrarily adjust the rotation speed of the injection mounting table between the injection of the foamed resin at the injection position and the time the next mounting table reaches the injection position. Foam molding device characterized by. The foam molding apparatus according to claim 5, wherein the rotation unit includes an input unit capable of arbitrarily setting a rotation speed of the injection mounting table for each mounting table.

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