JP2021011076A - Molded product take-out device, molded product taking-out method, molded product manufacturing method using molded product taking-out device, and attachment parts removing device - Google Patents

Abstract

To provide a device that properly and reliably removes attachment parts such as a gate, a runner and a sprue from semi-cured molded products.SOLUTION: There is provided a device that comprises: a molded product holding unit 41 for holding a semi-cured molded product molded inside a movable mold 21 and a fixed mold 22; and an air injection unit 53 that blows air to attachment parts of the molded product held by the molded product holding unit 41, and that is configured to blow attachment parts from the molded product by air blowing from the air injection unit 53. In addition, air blowing is preferably performed from the air injection unit 53 to the attachment parts while the molded product is held by the molded product holding unit 41.SELECTED DRAWING: Figure 5

Description

The present invention comprises a molded product take-out device for taking out a molded product of a thermosetting resin composition from a molding mold, a molded product taking-out method, a method for manufacturing a molded product using this molded product taking-out device, and removing an accessory from the molded product. Regarding the accessory removal device.

When a molded product is manufactured using a mold device for injection molding, first, a molding material (heat) is formed in a cavity formed inside by combining a pair of molding dies in the injection molding device of the mold device on a divided surface. A curable resin composition, a thermoplastic resin composition) is injected to inject a molded product. Subsequently, after the molded product is separated from the mold by the molded product extruder in the mold apparatus, the accessory portion (runner, sprue) formed integrally with the molded product at the time of molding by the accessory portion removing device of the mold apparatus. , Gate, etc.) are removed. Further, the molded product is manufactured by taking out the molded product from the mold device using the molded product taking-out device of the mold device.

As an accessory removing device for removing an accessory from such a molded product, a predetermined portion is turned by a cutting blade to remove the accessory such as a gate (Patent Document 1), or the gate is cut by a cutting mechanism. A device for cutting a gate by separating a resin product and a runner (Patent Document 2) has been proposed.

Japanese Unexamined Patent Publication No. 2015-174245 JP-A-2018-134769

Here, in recent years, as an injection molding method capable of continuously injection molding a thermosetting resin composition and reusing an accessory portion of a molded product at the time of molding, the thermosetting resin composition is injection molded in a cavity. The molded product is taken out in a semi-cured state (see, for example, International Publication No. WO2016 / 171099). According to such an injection molding method, after removing the accessory part from the semi-cured molded product taken out from the molding mold, the part of the molded product to be the product is heated to perform a thermosetting reaction of the thermosetting resin composition. The removed appendages can be used as a recycled raw material.

However, when removing the accessory from the semi-cured molded product taken out from the mold, if the accessory is to be removed by cutting or cutting as in the past, the semi-cured molded product is properly attached because of its low strength. The part cannot be cut or cut, and the accessory part may remain in the molded product, or the boundary between the semi-cured molded product and the accessory part may be deformed. It was difficult.

The present invention provides a molded article taking-out device, a molded article taking-out method, and this molded article taking-out device having a function of appropriately and surely removing reusable accessories such as a runner from a molded article in a semi-cured state. An object of the present invention is to provide a method for manufacturing a molded product used, and an accessory removing device for removing an accessory from the molded product.

Hereinafter, in order to facilitate understanding of the present invention, the drawings will be described with reference numerals corresponding to the drawings showing the embodiments of the present invention, but the present invention is not limited thereto.

In order to achieve the above object, the feature of the molded article taking-out device according to the first invention is
A molded product take-out device (4) for taking out a molded product of a thermosetting resin composition molded inside the molding mold (21, 22) from the molding mold (21, 22).
A molded product holding portion (41) for holding the semi-cured molded product molded inside the molding mold (21, 22), and a molded product holding portion (41).
It has an air injection part (5) that blows air to an accessory part of the molded product held by the molded product holding part (41).
The point is that the accessory part is blown off from the molded product by the air blown from the air injection part (5).

According to the first invention, the semi-cured molded product molded inside the molding mold (21, 22) is held by the molded product holding portion (41), and the air injection portion (5) is held with respect to the accessory portion of the molded product. ) By blowing air from the molded product to blow off the accessory part, without causing problems such as the debris of the accessory part remaining on the molded product or deforming the boundary between the molded product and the accessory part. It is possible to remove accessories such as runners from a semi-cured molded product having low strength.

In the molded product taking-out device (4) according to the first invention, the molded product holding portion (41) is attached to the arm (42), and the air injection portion (5) is attached to the arm (42) for molding. Air may be blown from the air injection part (5) to the accessory part while the molded product is held by the product holding part (41).
By adopting such a configuration, it is possible to remove the accessory part from the semi-cured molded product in the flow of the process of taking out the semi-cured molded product from the mold, and to facilitate the manufacturing process of the molded product. Can be done. Further, since air is blown from the air injection portion (5) attached to the arm (42) to the accessory portion of the molded product held by the molded product holding portion (41) of the arm (42), air is blown to the accessory portion. The direction of the air injection part (5) can be easily adjusted.

In the molded product taking-out device (4) according to the first invention, the molded product holding portion (41) may be configured by a suction means (41) that holds the molded product by suction.
By adopting such a configuration, it is possible to securely hold the semi-cured molded product and accessories that are weak and difficult to pinch and take them out from the molding molds (21, 22), and by extension, firmly hold them. However, air can be injected into the accessory to remove the accessory from the semi-cured molded product.

In the molded product taking-out device (4) according to the first invention, the molding material is a thermosetting resin composition containing magnetic particles, an electromagnet is used as the adsorption means (41), and the molded product is attracted and held by the magnetism of the electromagnet. It is good to do.
By adopting such a configuration, the attractive force due to the magnetic force can be adjusted in consideration of the type of material and the strength of the semi-cured molded product, so that the molded product in the semi-cured state can be appropriately and surely held. be able to.

In the molded product taking-out device (4) according to the first invention, it is preferable that the molded product is manufactured by an injection molding method. As a result, air is blown to the accessory part of the semi-cured molded product molded by the injection molding method by the air injection part means (5) to blow off the accessory part from the molded product, so that the debris of the accessory part is molded. It is possible to remove accessories such as runners from a semi-cured molded product with low strength without causing problems such as remaining in the product or deforming the boundary between the molded product and the accessory. ..

The feature of the molded article taking-out method according to the second invention is
This is a method for taking out a molded product from a molding die (21, 22) by a molded product taking-out device (4).
A step of holding the semi-cured molded product molded inside the molding mold (21, 22) by the molded product holding unit (41), and
It has a point of having an air injection step of blowing air to an accessory portion of the molded product and blowing off the accessory portion from the molded product depending on the state in which the molded product is held by the molded product holding portion (41).

The feature of the method for manufacturing a molded product according to the third invention is
A method for producing a molded product of a thermosetting resin composition using a molded product extraction device (4).
The process of molding a semi-cured molded product using a molding die (21, 22), and
The process of holding the molded product by the molded product holding unit (41) and
The point is that it has an air injection step of blowing air to an accessory portion of the molded product and blowing off the accessory portion from the molded product while the molded product is held by the molded product holding portion (41).

According to the second invention and the third invention, air is blown to the accessory portion of the semi-cured molded product taken out from the movable mold (21) among the molding dies (21, 22), and the molded product is used. By blowing off the accessory part, the debris of the accessory part does not remain in the molded product, and the boundary between the molded product and the accessory part is not deformed. Attachments such as runners can be removed.

The feature of the accessory removing device (5) according to the fourth invention is
An accessory removing device (5) for removing an accessory formed integrally with a molded product of a thermosetting resin composition from the molded product during molding.
It has an air injection part (53) that blows air to the accessory part of the semi-cured molded product.
The point is that the accessory portion is blown off from the molded product by the air blown from the air injection portion (53).

According to the fourth invention, by blowing air to the accessory part of the semi-cured molded product to blow off the accessory part from the molded product, the debris of the accessory part remains in the molded product, or the molded product and the accessory part It is possible to remove an accessory such as a runner from a semi-cured molded product having low strength without causing a problem such as deforming the boundary between the two.

According to the molded article taking-out device, the molded article taking-out method, the molded article manufacturing method, and the accessory part removing device according to the first to fourth inventions, accessories such as a runner, a sprue, and a gate of the semi-cured molded article are provided. It can be properly and reliably removed from the article.

It is sectional drawing which shows one state (mold tightening state) of the mold apparatus provided with the molded article take-out apparatus which concerns on one Embodiment of this invention. It is sectional drawing which shows one state (mold opening state) of the mold apparatus shown in FIG. It is sectional drawing which shows one state (extrusion process) of the mold apparatus shown in FIG. It is sectional drawing which shows one state (holding process) of the mold apparatus shown in FIG. It is sectional drawing which shows one state (attachment part removal process) of the mold apparatus shown in FIG. It is sectional drawing which shows one state (the process of taking out a molded product) of the mold apparatus shown in FIG. It is a flowchart which shows the process of manufacturing the molded article made from the resin composition using the mold apparatus shown in FIGS. 1 to 6. It is a flowchart which shows the taking-out process of FIG.

Hereinafter, an example of the molded product taking-out device and the accessory removing device according to the present invention will be described with reference to FIGS. 1 to 8.

As shown in FIGS. 1 to 6, the molded product taking-out device 4 and the accessory removing device 5 according to the present embodiment are provided in the mold device 1 for manufacturing the molded product, and the mold device according to the present embodiment. 1 is an injection molding device 2 for injection molding a molded product of a thermosetting resin composition as a molding material, and an injection molded product from a mold, in addition to a molded product taking-out device 4 and an accessory removing device 5. It has a molded product extruder 3 to be separated.

The injection molding apparatus 2 has a movable mold 21 and a fixed mold 22 as molding dies 21 and 22 for molding a molded product, and in the present embodiment, the movable mold 21 is based on a mold driving device (not shown). By driving, the position of the mold-tightened state pressed against the fixed mold 22 shown in FIG. 1 and the position of the mold-opened state separated from the fixed mold 22 shown in FIG. 2 are moved in contact with each other.

A cavity 23 filled with a molding material is formed in the inside formed by combining the movable mold 21 and the fixed mold 22 on a split surface so that the fixed mold 22 and the movable mold 21 are in a molded state. The fixed mold 22 is formed with an injection path 24 for injecting a molding material into the cavity 23 from outside the fixed mold 22.

The thermosetting resin composition as a molding material used in the present embodiment contains at least a thermosetting resin and a curing agent. Examples of the thermosetting resin include epoxy resin, phenol resin, melamine resin, polyimide resin, urea resin, unsaturated polyester resin, polyurethane resin, silicone resin and the like. Only one type of thermosetting resin may be used, or two or more types may be used in combination. The curing agent is not particularly limited, and for example, an amine compound, an imidazole compound, an imidazoline compound, a urea compound, an acid anhydride compound, an amide compound, a hydrazide compound, a phenol compound, and a polysulfide compound. Examples include compounds. When a curing agent is used, the content of the curing agent is preferably 0.05% by mass to 1% by mass, more preferably 0.2% by mass to 0.5% by mass, based on the thermosetting resin. Only one type of curing agent may be used, or two or more types may be used in combination.

The thermosetting resin composition as a molding material used in the present embodiment may further contain other components in addition to the above components as long as the effects in the present embodiment are not impaired. Examples of other components include magnetic particles, non-magnetic particles, curing accelerators, mold release agents, foaming agents, pigments, fillers, antioxidants, processing aids and the like. Further, at least a part of the surface of the magnetic particles may be coated with a dispersant. Examples of the magnetic particles include magnetite, γ-iron oxide, manganese ferrite, cobalt ferrite, ferromagnetic oxides such as composite ferrites of zinc and nickel and barium ferrite, and ferromagnetic metals such as iron, cobalt and rare earths. , Magnetic particles such as metal nitride. Examples of the dispersant include known surfactants and polymer dispersants. Hereinafter, a case where magnetic particles are contained will be described as an example.

Then, the injection molding apparatus 2 fills the cavity 23 in the movable mold 21 and the fixed mold 22 with the thermosetting resin composition containing the magnetic particles via the injection path 24, and is a molded product in a semi-cured state. Is designed to be molded.

Here, the semi-cured state means that in the reaction of a certain thermosetting resin, the material swells when it comes into contact with a certain liquid and softens when it is heated, but completely melts or melts. It means an intermediate stage in which the heat is not generated, and is, for example, a state in which heat generation of 20% or more and less than 60% of the total curing calorific value is completed. On the other hand, the main cured state is the final state of curing of the thermosetting resin, which is insoluble and insoluble, and the completely cured thermosetting resin is in this state. For example, a state in which heat generation of 60% or more to 100% of the total heat generation amount of curing is completed can be said to be a main curing state.

There is an initial state before the semi-cured state. The initial state is an initial state of the formation reaction of the thermosetting resin, which is completely dissolved in a solvent and melts when heated. In addition to the case where the calorific value is zero, for example, a heat generation state of less than 20% of the total curing calorific value is also included in the initial state. The total curing calorific value and calorific value are measured using differential scanning calorimetry (DSC).

Further, the molded product extrusion device 3 of the mold device 1 according to the present embodiment includes a first passage 31 for inserting a pin formed inside the movable mold 21 so as to communicate with the cavity 23. The extrusion pin 32 is inserted into the first passage 31 so as to be movable back and forth between the storage position in the first passage 31 and the extrusion position protruding from the first opening on the cavity 23 side in the first passage 31. ing. The other end (rear end) of the extrusion pin 32 is connected to a pin drive device 33 that drives the extrusion pin 32 via a transmission member 34, and the extrusion pin 32 is driven by the pin drive device 33 to a storage position. It is designed to move forward and backward between the and extrusion positions.

In the present embodiment, the injection path 24 for supplying the molding material is formed in the fixed mold 22, and the first passage 31 through which the extrusion pin 32 is inserted is formed in the movable mold 21. Is not limited to this.

Further, the molded product take-out device 4 of the mold device 1 according to the present embodiment is fixedly attached to the upper surface of a fixed platen (not shown) to which the fixed mold 22 of the injection molding device 2 is fixed.

The molded product taking-out device 4 has a suction means 41 for holding the molded product by suction as a molded product holding unit 41 for holding the molded product. The suction means 41 is adapted to control the generation of magnetic force by energization by an energization control device (not shown), and is attached to the tip of the arm 42.

The arm 42 is driven by an arm driving device (not shown) including a traveling body traveling along the frame or an electric motor for driving the traveling body, so that the suction means 41 attached to the tip of the arm 42 is in a mold-opened state. It moves up and down so that it is located between the two molds 21 and 22, and the tip of the arm between the two molds 21 and 22 is close to the detached position where the molded product is pushed out from the movable mold 21 by the extrusion pin 32. It moves in the direction of separation, and further moves to the take-out position for taking out the molded product outside the injection molding apparatus 2. Then, as shown in FIG. 4, the molded product taking-out device 4 attracts when a magnetic force is generated in the adsorbent by energization by the energization control device in a state where the tip of the arm 42 is located at the detached position and approaches the molded product. The molded product is attracted to the suction means 41 by the attractive force of the magnetic force of the means 41. Further, as shown in FIG. 6, while the molded product is held by the suction means 41, the tip of the arm 42 is moved to the take-out position by being driven by the arm driving device, so that the molded product is between the molds 21 and 22. It is designed to be taken out from. Further, the molded product taking-out device 4 is removed from the suction means 41 so that the molded product is stored in a predetermined position by releasing the energization by the energization control device and eliminating the attractive force due to the magnetic force of the suction means 41. It has become like.

The adsorption means 41 is not limited to the above configuration. The adsorption means 41 has, for example, a transmitter made of a non-magnetic material and an adsorbent made of a magnetic material such as an electromagnet, and the adsorbent moves so as to be removable from the transmitter. By adjusting the attractive force due to the magnetic force of the adsorbent according to the distance between the body and the transmitter, the molded product may be adsorbed on the adsorbing means 41 or removed from the adsorbing means 41.

Further, the molding material of the present embodiment is a thermosetting resin composition containing magnetic particles and has magnetism, and the molded product taking-out device 4 uses the molded product as a holding portion by an attractive force due to a magnetic force. By adsorbing it on the adsorbing means 41, it is taken out from between the molds 21 and 22, but the present invention is not limited to this. For example, the molded product is adsorbed on the suction means 41 by air suction or vacuum suction, or the molded product is sucked on the suction means 41 by the suction means 41 made of, for example, an adhesive body, and is taken out from between the molds 21 and 22. You may do so.

Here, considering the strength of the molded product, it is preferable that the molded product having magnetism is attracted to the adsorption means 41 by magnetism. According to such a molded product taking-out device 4, the suction force of the suction means 41 can be easily adjusted by the contact / detachment of the adsorbent and the energization, the molded product can be held reliably and stably, and the movable mold 21 can be held. Can be taken out from.

Furthermore, the molded article taking-out device 4 according to the present embodiment has an accessory removing device 5. The accessory removing device 5 includes an air injection section 53 having an air nozzle 52 formed with an air injection port 51 for injecting compressed air into the accessory portion of the molded product, and an air supply unit (not shown) that supplies air to the air nozzle 52. It has a body that connects the air nozzle 52 and the air supply unit, and a valve (not shown) that controls the supply of compressed air from the air supply unit to the air nozzle 52.

The air injection unit 53 is attached to the arm 42 of the molded product take-out device 4, and the air injection port 51 is an accessory portion of the molded product when the molded product in a semi-cured state is held by the suction means 41. (In this embodiment, it is arranged so as to face the gate G). Then, in the air injection unit 53, as shown in FIG. 5, air is blown to the accessory portion of the molded product held by the suction means 41 of the molded product extraction device 4. The accessory part is blown off from the product body of the molded product so that the accessory part is removed from the molded product. Here, the fact that the molded product taking-out device 4 is attached to the arm 42 is not limited to the case where the air injection portion 53 is directly attached to the arm 42 itself, but also to the molded product holding portion 41 attached to the tip of the arm 42. By being attached, it may be attached to the arm 42 via the molded article holding portion 41, and may be attached directly to the arm 42 itself or to both the molded article holding portion 41. Further, in FIGS. 1 to 6, two air injection parts 53 are attached, but the number of air injection parts 53 is not limited to that of the present embodiment, and the molded product molded by the injection molding apparatus 2 And it is appropriately determined according to the shape of the accessory part.

The air nozzle 52 may be connected to the body so that the angle and position can be adjusted so that the injection direction of the air injected from the air injection port 51 can be changed. As a result, the air injection portion 53 can direct the air injection port 51 toward the accessory portion according to the shape, position, and size of the molded product and the accessory portion. It is preferable that the air injection unit 53 blows air onto the gate G portion of the accessory portions. This is because the thickness of the gate G is thinner than that of the sprue S and the runner R, so that the accessory portion can be removed with a lower air pressure. In the present embodiment, the air injection direction is changed by connecting the air nozzle 52 to the body so that the angle and position can be adjusted. For example, the air injection unit 53 is attached to the arm 42. On the other hand, the air injection direction may be changed by mounting the angle and position in an adjustable manner.

The air pressure injected from the air injection unit 53 is, for example, 0.6 to 1.0 MPa. The air pressure and injection time are set based on the shape and strength of the accessory part in the molded product.

Subsequently, based on FIG. 7, a method for producing a molded product of a thermosetting resin composition containing magnetic particles using a mold device 1 provided with a molded product taking-out device 4 in the present embodiment, and molding based on FIG. A method of taking out a molded product using the product taking-out device 4 will be described.

First, the movable mold 21 is moved to a position where it is in contact with the fixed mold 22 on the split surface by being driven by the mold drive device, and the movable mold 21 and the fixed mold 22 are combined on the split surface to be in a mold clamping state. As a result, the cavity 23 is formed between the movable mold 21 and the fixed mold 22 (STEP 1).

Subsequently, as shown in FIG. 1, a thermosetting resin composition containing magnetic particles is supplied from the injection path 24 of the fixed mold 22 and filled in the cavity 23 to mold a molded product (STEP 2). The cured state of the molded product obtained here is a semi-cured state. If it is in a semi-cured state, it is possible to reuse unnecessary accessories. Further, in the semi-cured state, there is no concern about explosion due to gasification of the dispersant consisting of the surfactant or the like adhering to the magnetic particles as compared with the case in the main cured state, and the movable mold 21 It is also expected to have the advantage that the molded product can be easily peeled off.

Next, in a semi-cured state, the thermosetting resin composition filled in the cavity 23 is relative to a position where the movable mold 21 is separated from the fixed mold 22 by being driven by the mold driving device as shown in FIG. The movable mold 21 and the fixed mold 22 are moved to open the mold (STEP 3). As a result, the fixed mold 22 is separated from the semi-cured molded product molded in the movable mold 21 and the cavity 23, and the semi-cured molded product remains in the movable mold 21.

When the temperature of the thermosetting resin composition becomes 50 ° C. or more lower than the curing temperature, preferably 75 to 100 ° C. lower, the extrusion pin 32 is extruded into the cavity 23 as shown in FIG. The tip of the pin 32 is brought into contact with the semi-cured molded product itself, and the semi-cured molded product is pushed out from the movable mold 21. As a result, the semi-cured molded product is separated from the movable mold 21 (STEP 4). When the thermosetting resin composition is cooled to the above-mentioned temperature and then separated from the movable mold 21, the thermosetting resin composition can be released from the mold well. In the present embodiment, the extrusion pin 32 is brought into contact with the semi-cured molded product itself and extruded from the movable mold 21, but the present invention is not limited to this, and the runner R and the gate are not limited to this. It may be brought into contact with G.

Subsequently, the molded product taken out from the movable mold 21 is taken out from the mold device 1 by the molded product taking-out device 4 (STEP 5).

In the take-out step (STEP 5), as shown in FIG. 4, the tip of the arm 42 is first moved to the detached position by driving by the arm driving device to bring the suction means 41 closer to the semi-cured molded product, and the suction means 41 is brought closer to the semi-cured molded product by the energization control device. By generating an attractive force by the magnetic force of the adsorption means 41, the semi-cured molded product is attracted to and held by the adsorption means 41 (STEP 51).

In the state where the semi-cured molded product is held by the suction means 41 in this way, compressed air is supplied from the air supply unit of the air injection unit 53 to the air nozzle 52 via the valve as shown in FIG. 5, and from the air injection port 51. Inject air. Here, the air nozzle 52 is arranged in advance so that the air injection port 51 faces the accessory portion of the semi-cured molded product held by the suction means 41 according to the size and shape of the semi-cured molded product and the accessory portion. By injecting air from the air injection port 51 and spraying it onto the accessory portion, the accessory portion is blown off and the accessory portion is removed from the semi-cured molded product (STEP 52). In the present embodiment, the accessory portion of the molded product is continuously formed, and by blowing air on a part of the accessory portion (gate G in the present embodiment), the entire accessory portion (gate G, runner R, Sprue S) can be removed from the molded product.

After that, while the semi-cured molded product is held by the suction means 41, the tip of the arm 42 is moved to the take-out position by driving by the arm driving device as shown in FIG. Separated from between 22 (STEP 53), the magnetic force of the suction means 41 is weakened at a predetermined position, and the semi-cured molded product is removed from the suction means 41 (STEP 54).

In the present embodiment, in the flow of the process of holding and taking out the semi-cured molded product extruded from the movable mold 21, the attached portion of the semi-cured molded product held by the suction means 41 of the molded product taking-out device 4 , Air is injected by the accessory removing device 5. By performing the process of removing the accessory portion in a series of steps of the taking-out process in this way, the manufacturing process can be smoothly advanced.

The present invention is not limited to the process of the present embodiment. For example, the above-mentioned accessory removal step (STEP 52) is a separation step (STEP 53) of taking out a molded product from between the molds 21 and 22. Air may be injected to the accessory portion of the semi-cured molded product separated from the fixed mold 22, such as after the removal step (STEP 54) of being removed from the suction means 41.

Then, the molded product from which the accessory portion has been removed is heated to cure the molded product in the semi-cured state (STEP 6). On the other hand, the accessory part removed from the molded product is crushed and used for injection molding as a recycled raw material (STEP 7).

Here, in the present embodiment, the reason why the molded product is separated from the movable mold 21 in a semi-cured state and taken out from the mold apparatus 1 is as follows.

First, by removing the accessory portion from the molded product in the semi-cured state, the molded product in the semi-cured state can be crushed and used again as a recycled raw material for injection molding. Therefore, it is possible to reduce the amount of waste and to reduce the manufacturing cost of the molded product by injection molding.

Further, when a thermosetting resin composition containing magnetic particles whose surface is coated with a dispersant at least in part as a molding material as in the present embodiment is used, the movable mold 21 is fixed. This is because when the temperature of the mold 22 is set to a high temperature, the dispersant that coats the surface of the magnetic particles disappears, the magnetic particles agglomerate, and the magnetic characteristics may deteriorate.

Here, when the resin composition is heated in the cavity 23 to a temperature higher than the injection temperature and the dispersant does not disappear and is finally cured, the movable mold 21 and the fixed mold 22 are heated and then subjected to heating. Since it is necessary to cool the mold device 1, workability is lowered and temperature control is difficult. Further, when the thermosetting resin composition is heated to a temperature at which the thermosetting resin composition is finally cured, a large amount of gas derived from the dispersant that coats the surface of the magnetic particles is generated depending on the temperature adjustment, and the molded product is generated in the cavity 23 by this gas. There is a risk that the mold device 1 will be damaged due to distortion or the opening of the movable mold 21 and the fixed mold 22 that are molded with a pressure of about 40 tons.

For this reason, the molded product is separated from the movable mold 21 in a semi-cured state, and the accessory portion is removed from the molded product.

According to the mold device 1 according to the present embodiment, the semi-cured molded product taken out from the movable mold 21 is molded by blowing air from the air injection portion 53 of the accessory removing device 5. The accessory can be blown off from the item. As a result, from a semi-cured molded product that is not suitable for cutting or cutting due to insufficient strength, the accessory part remains in the molded product, and the boundary between the semi-cured molded product and the accessory part is deformed. It is possible to properly and surely remove an accessory such as a runner without generating a runner.

Further, according to the present embodiment, by attaching the air injection unit 53 to the arm 42 of the molded product extraction device 4, the accessory portion can be removed from the semi-cured molded product in the flow of the extraction process, and the semi-cured molded product can be removed. The manufacturing process can be carried out smoothly. Further, since air is blown from the air injection port 51 of the air injection portion 53 attached to the arm 42 to the accessory portion of the semi-cured molded product held by the suction means 41 provided at the tip end portion of the arm 42, the accessory portion. The angle of the direction of the air injection port 51 for blowing air on the air can be easily adjusted.

By using the suction means 41 for holding the semi-cured molded product by suction as the holding portion of the molded product taking-out device 4, the movable mold can reliably hold the semi-cured molded product and accessories that are weak and difficult to pinch. It can be taken out from 21, and by extension, it is possible to remove the accessory part from the semi-cured molded product by injecting air into the accessory part while holding it firmly.

Further, by using a thermosetting resin composition containing magnetic particles as a molding target, using an electromagnet as an adsorption means 41, and adsorbing and holding the molded product by the magnetism of the electromagnet, the type of material and the semi-cured molded product can be obtained. Since the attractive force due to the magnetic force can be adjusted in consideration of the strength and the like, the semi-cured molded product can be held appropriately and surely.

The present invention is not limited to the above-described embodiment, and the above-described embodiment is appropriately modified or improved based on the ordinary knowledge of those skilled in the art without departing from the spirit of the present invention. Is also included in the scope of the present invention.

For example, the molded product taking-out device 4 and the accessory removing device 5 have a detection means such as a sensor for confirming that the accessory has been removed, and laser marking for marking the result of the detection means on the molded product. A printing means such as a unit may be provided.

1 ... Mold device 2 ... Injection molding device 21 ... Movable mold (molding mold)
22 ... Fixed mold (molding mold)
23 ... Cavity 24 ... Injection path 3 ... Molded product extrusion device 31 ... Pin insertion passage 32 ... Extrusion pin 33 ... Pin drive device 34 ... Transmission member 35 ... Spring 4 ... Molded product extraction device 41 ... Suction means (molded product holding unit) )
42 ... Arm 5 ... Attached part removal device 51 ... Air injection port 52 ... Air nozzle 53 ... Air injection part 54 ... Body

Claims (8)

A molded product take-out device for taking out a molded product of a thermosetting resin composition molded inside a molding mold from the molding mold.
A molded product holding portion that holds the molded product in a semi-cured state molded inside the molding mold,
It has an air injection part that blows air to the accessory part of the molded product held by the molded product holding part.
A molded product take-out device configured to blow off accessories from a molded product by the air blown from the air injection unit. Equipped with an arm equipped with a molded product holder
The molded product removal according to claim 1, wherein the air injection portion is attached to the arm, and air is blown from the air injection portion to the accessory portion while the molded product is held by the molded product holding portion. apparatus. The molded product taking-out device according to claim 1 or 2, wherein the molded product holding portion comprises a suction means for holding the molded product by adsorption. The molding material is a thermosetting resin composition containing magnetic particles.
The molded product taking-out device according to claim 3, wherein an electromagnet is used as the suction means, and the molded product is attracted and held by the magnetism of the electromagnet. The molded product taking-out device according to any one of claims 1 to 4, wherein the molded product is manufactured by an injection molding method. A method for taking out a molded product from the molding mold by the molded product taking-out device according to any one of claims 1 to 5.
A step of holding a semi-cured molded product molded inside the molding mold by a molded product holding portion, and
An air injection process in which air is blown to the accessory part of the molded product and the accessory part is blown off from the molded product depending on the state in which the molded product is held by the molded product holding portion.
A method for taking out a molded product having. A method for producing a molded product of a thermosetting resin composition by using the molded product taking-out device according to any one of claims 1 to 5.
The process of molding a semi-cured molded product using a molding mold,
The process of holding the molded product by the molded product holding unit,
An air injection process in which air is blown to the accessory part of the molded product while the molded product is held by the molded product holding portion to blow off the accessory part from the molded product.
A method for manufacturing a molded product having. An accessory removing device for removing an accessory formed integrally with a molded product of a thermosetting resin composition from the molded product during molding.
It has an air injection part that blows air to the accessory part of the semi-cured molded product.
An accessory removal device configured to blow off the accessory from the molded product by the air blown from the air injection part.

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