JP2727416B2 - Mold structure and in-mold molding machine used in in-mold molding method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold structure and an in-mold molding machine used in an in-mold molding method for forming a sheet and then performing in-mold injection molding on the sheet molded product.

[0002]

2. Description of the Related Art According to a conventional in-mold molding method,
A sheet molding machine, for example, a vacuum molding machine is used to form a sheet molded product from a raw plastic sheet with a predetermined mold, the obtained sheet molded product is removed from the mold, and then a predetermined in-mold of an independent injection molding machine. It is installed at a predetermined location in a dedicated mold and performs in-mold injection molding. In this method, the transfer of the insert of the sheet molded article to the injection molding mold requires human labor or an alternative robot operation, and also requires a considerable transfer time. If this transition time is long,
The molding shrinkage of the sheet molded product occurs, and the influence of the shrinkage of the installation (set) with respect to the injection molding die and the possibility of the fitting are increased. Moreover, even if the sheet molding is set without displacement at the time of insertion, the sheet molded product inserted immediately before injection is displaced from a predetermined position due to inevitable mold vibration during the injection molding operation, or the injection molding machine is a horizontal type. Yes, and therefore, since the parting surface of the injection mold is a vertical surface, there is a risk that such a situation may occur in which the mold falls. Such a situation leads to poor molding of the in-mold molded product.

[0003]

SUMMARY OF THE INVENTION In view of the above situation, the transfer of a sheet molded product quickly, avoidance of set deviation, securing a predetermined set against mold vibration, substantially eliminating the work of transferring a sheet molded product, and The purpose of the present invention is to solve at least two of these problems, and preferably all of them, if possible, by synchronizing the sheet molding of a new sheet molded product and the in-mold injection molding of the preceding sheet molded product. The primary goal is to provide a high quality, high productivity automated in-mold molding method and apparatus that can be performed without the need for human or robotic operations.

[0004]

The basic means of the present invention is:
The raw material sheet is formed into a desired shape from the sheet using a sheet molding die, and the obtained sheet molded product is stored as an insert product in a predetermined location of a predetermined injection molding die and subjected to in-mold injection molding. In the in-mold molding, the mold half of the sheet molding die while holding the sheet molded product is diverted to the mold half for injection molding, and this is used as a mold having the remaining predetermined gate. The purpose of the present invention is to form the injection mold and thereby perform the in-mold injection molding. The second means is that the diversion is performed in a state where the sheet molded product is held on the sheet molding half by vacuum suction. The third means is to use the sheet forming half supporting the sheet formed product as a trimming sheet forming half combined with a trimming half, and to complete the trimmed sheet formed product from the sheet forming step. Transfer to the in-mold injection molding process as a product. The fourth means is to use a double-sided half-type mold in which the contours of the same surface of the molded product are formed on both front and back surfaces for the sheet-forming half-type mold, and invert the double-sided half-type mold in each sheet forming cycle. Performing the diversion, performing the sheet molding process on one side of the double-sided half mold, and performing the in-mold injection molding process on the other side. Fifth
Means, each time the two-sided half mold is turned over, using both sides thereof, a sheet forming step for a new raw material sheet and an in-mold injection molding step for a sheet formed article formed in a preceding cycle before turning over. It is to carry out at the same time.

According to the present invention, the first half forming the injection mold and the second half having the gate communicating with the injection nozzle are provided with a tie bar extending from the fixed plate having the injection nozzle receiving hole. A first mold plate attached to a movable plate slidably supported on the piston and driven by a piston, and a second mold plate attached to a fixed plate and having a channel means for communicating the nozzle with the gate. By applying the mold component according to the present invention to an injection molding machine of a type mounted to face each other, an in-mold molding machine having the following configuration is provided. That is, the injection molding machine is provided with a sheet heating means and a vacuum suction means (suction means) for softening the raw material sheet of the sheet molding machine; a movable body consisting of a movable plate and a first mold plate is now parallel to the diver. And a track body having a stopper at the end thereof is disposed; between the first and second mold plates, the track body is slidably supported up to the stopper end. A hollow mold having a through-hole shape provided therein; a trimming half of a trimming sheet forming machine is mounted on the first mold instead of the first mold for injection molding; Providing means;
A double-sided core half, which is pivotally supported by the rotary drive means so as to be able to be turned inside out, is inserted into the through-hole of the intermediate mold plate; A contoured surface portion on which the same surface contour is formed, and a partitioning surface portion capable of abutting on both the trimming mold half and the second mold half in the inserted state; The injection molding machine has an intermediate mold plate movable on the raceway when the movable plate retreats relative to the fixed plate. Means for preventing frictional follow-up of the movable plate until it is pressed against the end of the track body stopper, and the distance between the first mold plate and the intermediate mold plate and the intermediate mold Trimming seam between the board and the second die Before the forming, prior to injection molding and post-processing,
An in-mold molding machine including a sheet molding machine incorporated into an injection molding machine having such a configuration, which is set so as to be capable of performing post-processing, is provided for performing the above method.

[0006]

According to the above-mentioned in-mold molding machine, in each molding cycle, one side of the double-sided core half holding the trimmed sheet molded product formed in the preceding cycle as it is is facing the second half. The double-sided core half is turned over by the rotation driving means, and in this state, the trimming half and the double-sided core half are clamped by the forward movement of the movable plate toward the fixed plate, and the double-sided core is clamped. The mold clamping of the mold half and the mold half of the second mold are performed synchronously, whereby the trimmed sheet formed from the raw material sheet pretreated by the heating means and the trimmed sheet molded product formed in the preceding cycle are inserted into the insert product. And the in-mold injection molding by the injection molding machine itself can be performed synchronously in cooperation with the vacuum suction means. Therefore, the first to fifth method means can be executed. Can.

[0007] The most preferred embodiment of the method and apparatus of the present invention is where the sheet forming is performed by vacuum forming. This is because one of the two sides of the double-sided core half mold can exert a suction function for vacuum forming and, on the other hand, can simultaneously exert a suction function for suction holding of a sheet molded product. However, the present invention is not limited to the sheet forming of this vacuum forming method, for example, by pressing a heat-softened raw material sheet using a core trimming mold against one surface of a double-sided core mold, Accordingly, the present invention can be applied to a press molding method of sheet molding.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An in-mold molding machine according to the present invention is one in which a conventional vertical trimming vacuum molding machine is incorporated in a horizontal system as an example of a sheet molding machine suitable for a conventional horizontal (horizontal) injection molding machine. The injection molding machine, as shown in FIGS.
Including a fixed plate (platen) 10, a movable plate (platen) 20 slidably supported by a tie bar 30 extending therefrom, a hydraulic piston cylinder (not shown), and an injection machine main body (not shown) having a nozzle 5. It is configured. The movable plate 20 connected to the piston has the first
A mold plate 25 is mounted, and a first mold for injection molding is mounted on the mold plate if it is a machine dedicated to injection molding. In the present invention, instead of this, a trimming mold 40 (vertical mold) of a vacuum molding machine is used. In the formula, it is referred to as the upper mold). A second mold plate 15 is attached to the fixed plate 10, and a half mold 50 having a gate for injection molding (hereinafter referred to as a second mold half) is mounted on the mold plate. You.

The in-mold molding machine is provided with a hot plate device 60 shown in FIG. 2 for lowering and rising from above when the mold is opened, and a vacuum suction device (not shown) for vacuum forming. The movable plate 20 is provided with four support pins 70 extending in parallel with the tie bar 30 and a nut-shaped stopper 75 is screwed to a free end of the pin. An intermediate die plate 80 having a hollow through shape is disposed between the first and second die plates 25 and 15. This mold plate 80 is a square body, and has a pneumatic rotary actuator 100 of a rotary drive means disposed on the top surface as shown in FIG. 7, and each corner has a support pin hole as shown in other figures. 81 are drilled. The support pin 70 penetrates through the support pin hole 81 of the intermediate die 80, and the stopper 7 protrudes therefrom.
5 are attached. In this state, the intermediate die 80 is slidably supported by the support pins 70. The intermediate mold plate 80 further has a guide pin hole 82 for positioning in which the guide pins 16 of the second mold plate 15 can be inserted. The second mold plate 15 has a support pin receiving hole 17 that slidably receives the support pin 70 from the stopper 75 when the mold is clamped.

The substantially rectangular through hollow portion 85 of the intermediate mold plate 80
The lower and upper shaft portions 9 at the upper and lower ends on the vertical center line (axis) are provided with a substantially square double-sided core half 90.
It is pivotally mounted by 1,92 for pivoting by 180 °, i.e. it can be turned over with respect to the trimming half. The upper shaft portion 92 extends upward from a mold plate through a shaft hole formed in the mold plate, and forms a shaft of the rotary actuator 100. Double-sided core half 90
Has a profile surface portion 93 in which one profile (contour) of a vacuum-formed product is formed on both surfaces A and B on the front and back sides thereof, and a partitioning surface portion 94 is formed on the periphery thereof. Furthermore, this half mold 90 has its contour surface 93
A suction hole is formed which is open to the inside, and this hole communicates with a conduction path portion formed inside. The aforementioned lower shaft portion 91
Is a tube penetrating the intermediate mold plate, and is a double-sided core half mold 9
The tube extends into a shaft hole (concave portion) formed at the lower end of the tube 0, and the inside of the tube communicates with the above-described conduction path portion. The tubular lower shaft portion 91 is fixed to the intermediate mold plate 80 and functions as a thrust bearing for the double-sided core half mold 90. The lower shaft portion 91 can be connected to the vacuum source side of the vacuum suction device via a joint 95, that is, to a conductive path portion outside the intermediate mold plate.

The present invention relates to the rotary actuator 10
It is not limited to 0, and it is sufficient if the double-sided core half 90 can be accurately rotated by 180 °. Therefore, it may be a hydraulic motor, an electric motor, or other driving means using a driving source and a belt or a chain.

As shown in FIG. 1, two sets of latch lock interlock elements 101 and 102 are provided on the top surface and the bottom surface of both the movable intermediate mold 80 and the fixed second mold 15, respectively. The latch locks (101, 102) are means for anchoring the intermediate mold plate 80 and the second mold plate 15 to each other. Has a function of preventing the mold from opening between the movable mold plate and the intermediate mold plate 80 until the intermediate mold plate 80 is pushed in the retreat direction by the retraction force of the movable plate. Therefore,
This latch lock (101, 102) is
This serves as a means for preventing the movable plate 20 from being driven by friction with the support pin 70 until the intermediate mold plate 80 is pressed against the zero stopper 75.

The second mold 15 is of a conventional type, and includes a block portion 51 for mounting the second half 50 and a plate portion 52 for mounting on the fixed plate 10, and a bridge extending in the mold opening direction for bridging between the two. A block portion 51 and a plate portion 5
An air gap is defined between the two. A conventional ejector plate 110 is inserted into the gap of the second die plate. The plate 110 has a central hole through which the hot runner member 130 can penetrate, and penetrates so as to open to a pin hole formed in the second die 15 and a corresponding contour surface of the second half 50. It has an ejector pin 111 that can penetrate and protrude through each of the pin holes, and a guide pin 112 that can be inserted into a guide hole formed in the second half 50. A coil spring 11 surrounding a guide pin 112 is provided between the ejector plate 110 and the block portion 51 of the second mold 15.
3 is interposed, and the ejector plate 110 prevents the resilient force of the coil spring 113 from acting on the block portion 51.
The ejector pin 111 protrudes from the contour surface of the second mold half 50 by this movement, and the molded product on this surface can be released.

According to the present invention, the conventional ejector plate 110 and the intermediate mold plate 80 are provided with a chain 120 at the bottom surface thereof in a bridging manner as shown in FIG. The present invention is not limited to the chain 120, but in this example, three chain rings each having a long and flattened ring plate are used, and the center chain ring is connected to the chain rings at both ends by link connectors. Let
The connector is movable in the longitudinal direction within the long hollow portion of the chain link concerned. According to the chain 120 having this configuration, the chain can be extended on the same horizontal plane. When the movable plate 20 opens and retracts, the latch locks (101, 102) are released from each other when the stopper 75 of the support pin 70 comes into contact with the intermediate mold plate 80, whereby the second mold plate 15 is disengaged. When the opening of the double-sided core half 90 on the intermediate mold 80 with respect to the second mold 50 is started, the intermediate mold 80 moves the chain 120 in the retreating direction against the elastic force of the coil spring 113. As a result of the pulling, the ejector pin 111 exhibits the above-mentioned releasing function.

The length of the support pin 70 and the movable plate 2
The retracting stroke of the hydraulic piston for retracting 0 is set in relation to the dimension of the other related members in the direction of the center axis of the molding machine. The mold opening gap between the double mold half 40 and the double-sided core half 90 and the mold gap between the second half mold 50 and the double-sided core half 90 before trimming vacuum forming, before post-processing and in-mold injection molding, The post-processing work is secured to a size as small as possible.

The injection molding method of this embodiment is of a hot runner type, and therefore, a hot runner member 130 is provided for communicating from the nozzle 5 to the gate of the second half mold 50 via the inside of the second mold plate 15. ing. However, the molding machine of the present invention is not limited to this, and a cold runner type can also be adopted.

The present invention provides an in-mold injection-molded article,
It is suitable for molding automotive interior moldings such as switch bases, console uppers, center clusters, and meter clusters, but is also open to various other molded products. As a trimming half mold of a type applicable to the above-listed specific examples, in the example of the present invention, as is apparent from FIG. 1, a first blade portion 41 for cutting off the remaining portion of the raw material sheet at the outer peripheral edge of the vacuum formed product. And a second blade portion 42 for cutting off the remaining portion of the sheet at the inner peripheral edge of at least one hole having a desired shape to be formed in the molded article.

The in-mold molding machine having the above configuration can execute a process including the following steps in one cycle. (1) In the mold open state of FIG. 1, FIG. 3 or FIG. 6, a new raw material sheet (also referred to as a film) 1 is trimmed by the trimming mold 40 emptied at the end of the preceding cycle of the double-sided core mold 90. Is set as shown in FIG. At this stage, on the other surface B of the double-sided core half 90, the molded article 2 for the insert, which has been trimmed and vacuum-formed in the preceding cycle, is retained on the other surface B as it is. In order to ensure this holding against the vibration of the mold, the vacuum suction device is operated to perform the vacuum suction on the contour surface of the insert 2 continuously from the preceding cycle. (2) Next, the hot plate device 60 is lowered as shown in FIG. 2 so that the hot plate faces the raw material sheet 1, thereby softening the sheet. In the meantime, vacuum suction is performed on the first surface A of the double-sided core half 90 on the sheet side in the same manner as the other surface B. In this case, preferably, the hot plate device is provided with a micro-pressure air device to assist the pressing of the sheet against the first surface A. At this stage, the sheet 1 has been deformed into a shape substantially along the contour surface portion of one surface A, and the insert product 2 has been deformed on the other surface B.
Adsorption is maintained. (3) Next, the hot plate device 60 is raised and taken out of the system, and while continuing the vacuum suction operation, the movable plate 20 is closed and advanced to move the two dies (40, 90; 90, 50). The mold closing is performed synchronously, and the plasticizing raw material is injected from the nozzle 5 of the injection machine to the in-mold injection molding die (90, 50) through the hot runner 130 and the gate. At this stage, the trimming mold 40 cuts the sheet 1 on the first surface A of the double-sided core half 90 at the first and second blade portions 41 and 42, and cuts the sheet 1 on the first surface A of the core half 90. Performs the final stage of vacuum forming of the sheet. (4) Next, the two molds (40, 90; 90, 50) are opened synchronously, and the completed in-mold injection-molded product is ejected by the ejector pins 111 as shown in FIG. Is automatically released from the mold. On the other hand, the trimmed mold 40 that has been opened is accompanied by the separated sheet remainder, which falls off the trimming mold 40 due to mold vibration. At this stage, vacuum suction is applied to the double-sided core half mold 90-1.
Persist only in side A. (5) Next, the double-sided core half 90 is rotated by 180 ° by the rotation of the rotary actuator 100 in a state where the new insert product 2 formed by trimming vacuum forming is continuously held on one surface A while continuing vacuum suction. Then, the two sides A and B are turned over such that one side A faces the second half mold 15 and the other vacant side B of the insert 2 faces the trimming half mold 40. At this stage, one of synchronous execution of the trimming vacuum forming process and the in-mold injection molding process
A cycle, that is, one cycle of the in-mold molding process is completed.

For the above-mentioned in-mold molding step, a vacuum suction device is used so that a vacuum suction operation can be individually performed on each surface from suction holes provided on the contour surfaces of both surfaces A and B of the double-sided core half mold 90. It is preferable to divide the conduction path system and efficiently control the vacuum suction of each surface. However, depending on the required cavity profile of the double-sided core half according to the present invention, the dislocation and injection molding of the core half for in-mold injection molding without intentionally performing vacuum suction,
There may be such a core half that is effectively held in the cavity without the sheet molded product being shifted or dropped. Therefore, as far as the double-sided core half according to the pressing sheet forming method is concerned, it is not necessary to arrange a suction hole in the contour surface portion depending on the condition of the cavity contour.

[0020]

According to the present invention, a sheet molding cycle and an in-mold injection molding cycle are automatically related to both cycles by a single in-mold molding machine without the need for human operation or robot operation. Sheet molding inserts can be performed synchronously while being properly secured in place in the in-mold mold, so that in-mold sheet molding inserts can be produced with unprecedented productivity and quality. Can be manufactured. Although the present invention encompasses press-type sheet forming, it is particularly beneficial when performed in a vacuum forming manner.

[Brief description of the drawings]

FIG. 1 shows a first mold plate on which a trimming mold on the movable plate side of an in-mold molding machine according to the present invention is mounted, an intermediate mold plate on which core molds on both sides are inserted, and a second mold on a fixed plate side. It is a perspective explanatory view which shows the 2nd type | mold board mounted.

FIG. 2 is a partial cross-sectional plan view of the molding machine showing pretreatment steps of both trimming vacuum molding and in-mold injection molding performed synchronously in the in-mold molding machine according to the present invention.

FIG. 3 is a partial cross-sectional plan view of the molding machine showing the mold open state of the in-mold molding machine according to the present invention in a configuration in which the three types of mold plates of FIG.

4 is a partial cross-sectional plan view of a molding machine showing a process of rotating and turning a double-sided core half for a pretreatment stage of vacuum molding and injection molding in the mold opened state of the configuration of FIG. 3;

FIG. 5 is a partial cross-sectional plan view of the molding machine showing the mold closed state of the configuration of FIG. 3;

FIG. 6 is a partial bottom view of the molding machine showing a release mechanism of the in-mold injection-molded product when the mold is opened in the configuration of FIG. 3;

FIG. 7 is an explanatory front view of the movable intermediate mold plate according to the present invention, showing a part of a double-sided core half mold, a rotary actuator and a vacuum suction mechanism inserted therein when the mold is opened.

[Description of Signs] 1 ... Sheet of raw material 2 ... Insert product 5 ... Injection nozzle 10 ... Fixed plate 15 ... Second die plate (fixed) 16 ... Guide pin 17 ... Support pin accommodation hole 20 ... Movable plate 25 ... First die Board (movable) 30 ... Tie bar 40 ... Trimming half mold (movable) 41 ... First blade part 42 ... Second blade part 50 ... Second half mold (fixed) 51 ... Block part 52 ... Plate part 53 ... Bridged piece part Reference Signs List 60 hot plate device 70 support pin 75 stopper 80 intermediate plate (movable) 81 support pin hole 82 guide pin hole 85 through hollow portion 90 double-sided core half mold (rotation) A, B ... Half-sided surfaces 91, 92 ... Lower and upper shafts 93 ... Contour surface 94 ... Parting surface 95 ... Joint 100 ... Rotary actuator 101, 102 ... Interlock element (latch lock) 110 ... Edge Kuta plates 111 ... ejector pins 112 ... guide pin 113 ... coil spring 120 ... chain 130 ... hot runner member

Claims (6)

(57) [Claims] 1. A heat-softened raw material sheet is formed into a predetermined shape from a sheet by using a sheet forming die, and the obtained sheet molded product is inserted into a predetermined portion of a predetermined injection molding die as an insert product. A mold structure used in an in-mold molding method of housing and in-mold injection molding, wherein the mold structure includes: 1) a fixed mold plate and a half mold for injection molding mounted on the fixed mold plate; A movable mold plate having a hollow through-hole, and a double-sided core half inserted rotatably in the hollow through-hole, the core half being a half for sheet forming and injection molding. What is claimed is: 1. A mold structure for in-mold molding, wherein contours of the same surface of a sheet molded product are respectively formed on both surfaces thereof. 2. The double-sided core half between the trimming half and the injection-molding half, further comprising a second movable die plate and a trimming half for sheet molding mounted on the second movable half-plate. The mold structure for in-mold molding according to claim 1, wherein the mold is coordinated. 3. A first half forming an injection mold and a second half having a gate communicating with an injection nozzle can slide on a tie bar extending from a fixed plate having an injection nozzle receiving hole. A first mold plate attached to a movable plate supported by a piston and driven by a piston, and a second mold plate having a channel means for communicating the nozzle and the gate attached to a fixed plate so as to face each other. An injection molding machine of a type mounted thereon, the injection molding machine comprising sheet heating means for softening a raw material sheet of the sheet molding machine and vacuum suction means; a movable body comprising a movable plate and a first mold plate Is provided with a track extending parallel to the tie bar and having a stopper at the tip; between the first and second mold plates, the track is limited to the stopper end. Slidable A hollow mold having a through-hole shape provided therein; a trimming half of a trimming sheet forming machine is mounted on the first mold instead of the first mold for injection molding; Providing means;
A double-sided core half, which is pivotally supported by the rotary drive means so as to be able to be turned over, is inserted into the through hollow portion of the intermediate mold plate; A contoured surface portion on which the same surface contour is formed, and a partitioning surface portion capable of abutting on both the trimming mold half and the second mold half in the inserted state; The injection molding machine has an intermediate mold plate movable on the raceway when the movable plate retreats relative to the fixed plate. Means for preventing frictional follow-up of the movable plate until it is pressed against the end of the track body stopper, and the distance between the first mold plate and the intermediate mold plate and the intermediate mold Trim the gap between the board and the second die Before and after molding, the distance is set so as to enable each of before and after injection molding and before and after injection molding. In each molding cycle, the trimming sheet molded article molded in the preceding cycle is set to the vacuum suction means. The two-sided core half is turned upside down by the rotation driving means so that one surface of the double-sided core half in the state of being supported faces the second half in cooperation with the fixing plate. The trimming half mold and the double-sided core half mold and the double-sided core half and the second half mold are simultaneously clamped by the movable plate toward the movable plate. The trimming sheet molding of the raw material sheet pre-treated by the heating means and the in-mold injection molding by the injection molding machine itself using the trimming sheet molded product molded in the preceding cycle as an insert product can be simultaneously performed. It characterized the door, in-mold forming machine comprising incorporating a vacuum forming machine in an injection forming machine. 4. A pivot for pivotally supporting the double-sided core half comprises a first shaft and a second shaft which are separately disposed at both ends on the center line thereof, wherein the first shaft is an intermediate mold. The vacuum suction extends from the board into the recess formed in the double-sided core half, and the vacuum suction provided inside the inside of the intermediate mold board and the inside of the double-sided core half, respectively. A passage is formed connecting the two conductive passage portions of the means, while the second shaft extends from a double-sided core half through a shaft hole drilled in the intermediate mold to form a shaft of the rotary drive means. The in-mold molding machine according to claim 3, wherein 5. Two kinds of pin holes formed in a region corresponding to a contour surface portion of a second mold and a second half mold mounted on the second mold in a space provided in the second mold. Ejector plates each having a penetrable ejector pin and having a hole for permitting injection are provided on the second mold plate and the ejector plate against the elastic force of a spring disposed between the ejector plates.
The ejector pin is loosely fitted so that the ejector pin can be relatively protruded from the contour surface of the mold half; the track body having the stopper end is a support pin that penetrates a pin hole formed in the intermediate mold board; The leading end is slidably received in a guide hole formed in the second mold plate when the mold is closed; the driven preventing means is provided on both the intermediate mold plate and the second mold plate, and is provided in the mold opening direction. It consists of two types of interlocking elements that can be released from each other with a specific force; both the intermediate mold and the ejector plate are provided with a chain in a chain; the intermediate mold is located at the stopper end of the support pin. At the start point where the movable plate being retracted integrally with the movable plate that is being moved backward in the pressed state, the interlocking of the driven preventing means elements is released, and during the integral retreat from the start point, the intermediate mold plate is connected with the chain. Pull against the spring force of the spring. The in-mold molding machine according to claim 3 or 4, wherein the in-mold injection-molded product is released from the second half by the ejector pin. 6. The trimming half mold includes a first blade portion that cuts off the remaining portion of the outer package of the sheet at an outer peripheral edge of the trimmed mold and at least one hole of a desired shape formed in the molded product. The in-mold molding machine according to any one of claims 3 to 5, further comprising a second blade portion that cuts off the remaining portion of the sheet at the periphery.