CN111497117B

CN111497117B - Resin molding apparatus and method for manufacturing resin molded article

Info

Publication number: CN111497117B
Application number: CN201911304380.7A
Authority: CN
Inventors: 市川敬二朗; 小河冬彦; 志牟田智之
Original assignee: Towa Corp
Current assignee: Towa Corp
Priority date: 2019-01-30
Filing date: 2019-12-17
Publication date: 2022-04-01
Anticipated expiration: 2039-12-17
Also published as: KR20200094631A; JP2020121463A; JP7034961B2; TW202028620A; KR102255882B1; CN111497117A; TWI727612B

Abstract

The present disclosure provides a resin molding apparatus and a method of manufacturing a resin molded product, which are appropriately stopped according to an abnormality of a driving mechanism. The resin molding apparatus (100) performs resin molding on a molding object (3) by using a molding die (20), and comprises: a drive mechanism for driving a plurality of portions of the resin molding apparatus (100); an abnormality detection unit (11), wherein the abnormality detection unit (11) is configured to detect an abnormality in the drive mechanism; and a control unit (10), wherein the control unit (10) is used for controlling the resin molding device (100), and the control unit (100) can select and execute a program corresponding to the abnormality from a plurality of preset device stop processing programs.

Description

Resin molding apparatus and method for manufacturing resin molded article

Technical Field

The present invention relates to a resin molding apparatus and a method for manufacturing a resin molded product.

Background

Patent document 1 describes a cylinder operating state monitoring device. The operation state monitoring device includes: a microcomputer that executes control, timing, and the like in the operation state monitoring device; a storage unit for storing reference times of the forward movement time and the return movement time of the cylinder; a PLC for controlling the reciprocating movement of the cylinder; an input/output structure part for executing input/output of signals; an operation unit to which a setting condition or the like is input by a user; a monitoring state display unit for displaying an operation state of a cylinder to be monitored and an operation state of the operation state monitoring device; and a character information display unit for displaying specific information such as design conditions or an operating state of the cylinder inputted from the operation unit. The user can set a reference time of the moving time of the cylinder, a reference value of the number of times of measurement of the moving time, and an allowable value of the number of times of error that occurs when the measured moving time is deviated from the reference time, through the operation unit.

The operation state monitoring device measures the forward movement time and the return movement time of the cylinder as the operation state of the cylinder. The operating state monitoring device accumulates the measured numbers of measurements of the forward movement time and the return movement time and the numbers of errors when the measured numbers of measurements deviate from the reference time, based on the reference time of the forward movement time and the return movement time of the cylinder, the reference values of the measured numbers of measurements of the forward movement time and the return movement time, and the allowable values of the numbers of errors when the measured respective movement times deviate from the reference time. The operating state monitoring device also grasps the operating state of the cylinder based on whether the accumulated number of measurements has reached a reference value or whether the accumulated number of errors has reached an allowable value. The operating state monitoring device simultaneously monitors the operating states of the plurality of cylinders and displays the operating states on a monitoring state display unit. This makes it possible to grasp deterioration of the cylinder in advance and realize preventive protection.

Patent document 2 describes a resin sealing device. The resin sealing device includes: a lead frame stacking portion for stacking the guide frames; a sheet stacking portion for stacking a resin material; a transfer molding machine for sealing the lead frame; a product stacking portion for stacking molded products; a lead frame transfer mechanism for transferring the lead frame; a product transfer mechanism for transferring a product; and a gate removing mechanism. In the resin sealing device, the product stacking part, the lead frame transfer mechanism and the product transfer mechanism share one common transfer mechanism. Such a lead frame transfer mechanism, a web transfer mechanism, a product transfer mechanism, and a common transfer mechanism use an air cylinder as a drive source.

Documents of the prior art

Patent document

Japanese patent application laid-open No. 2004-011722 of patent document 1

Japanese patent application laid-open No. Hei 7-241874 of patent document 2

Disclosure of Invention

Problems to be solved by the invention

As described in patent document 2, the resin molding apparatus includes a drive mechanism. Therefore, it is desirable to provide a resin molding apparatus and a method of manufacturing a resin molded article that are appropriately stopped in accordance with an abnormality of a drive mechanism.

Means for solving the problems

In view of the above, a resin molding apparatus for resin-molding a molding object by using a mold is characterized by comprising: a drive mechanism for driving a plurality of portions of the resin molding apparatus; an abnormality detection unit for detecting an abnormality of the drive mechanism; and a control unit for controlling the resin molding apparatus, the control unit being capable of selecting and executing a program corresponding to the abnormality from among a plurality of preset apparatus stop processing programs.

In view of the above, the features of the resin molding apparatus for resin-molding a molding object by using a mold can be applied to a method for manufacturing a resin molded article in which a molding object is resin-molded by using a mold. In this case, the method for producing a resin molded article is characterized by using the above resin molding apparatus.

Effects of the invention

According to the present invention, it is possible to provide a resin molding apparatus and a method of manufacturing a resin molded product, which are appropriately stopped in response to an abnormality in a drive mechanism.

Description of the reference numerals

3: lead frame (molded object) 7: inner material box

8: the storage unit 9: touch panel (input part)

10: the control unit 11: abnormality detection unit

12: the timer unit 20: forming die

21: an upper die 22: lower die

23: plunger 26: movable disc

30: molded article 31: processed molded article

40: the feeding machine 42: lead frame supply unit

44: the blanking machine 46: transfer mechanism

48: the mold locking mechanism 50: first actuator (actuator for moving in)

52: second actuator (actuator for moving in)

54: third actuator (actuator for shift)

56: first auxiliary motor 58: second auxiliary motor

70: the alignment mechanism 71: sprue removing mechanism

72: outer cartridge 100: resin molding apparatus

500: cylinder (cylinder) G: guide member

L: a piston rod La: most retracted position

Lb: most advanced position M1: inner module

M2: mold module M3: outer module

Drawings

FIG. 1 is a schematic configuration diagram of a resin molding apparatus;

FIG. 2 is a schematic configuration diagram of a molding mechanism;

FIG. 3 is a schematic view of the actuator;

FIG. 4 is a flow diagram of exception handling;

FIG. 5 is a flowchart of a first device stop processing routine;

fig. 6 is a flowchart of the second device stop processing routine.

Detailed Description

Embodiments of a resin molding apparatus and a method of manufacturing a resin molded product will be described with reference to the drawings.

Description of the entire Structure of the resin Molding apparatus

Fig. 1 shows a schematic structure of a resin molding apparatus 100 according to the present embodiment.

The resin molding apparatus 100 is an apparatus for resin-molding a lead frame 3, which is an example of a molding target, with a resin 39 using a mold 20. In the present embodiment, the lead frame 3 is previously mounted with a semiconductor chip 3a (see fig. 2).

The resin molding apparatus 100 includes: a CPU1 as a central control device; a storage unit 8, the storage unit 8 storing control information such as a control program and a stop processing program of the resin molding apparatus 100; a molding mechanism 2, the molding mechanism 2 having a molding die 20; a drive mechanism for driving each of the sections described later; and a touch panel 9 (an example of an input unit) for receiving an operation command from a user or input of information related to abnormality processing and displaying various output information of the resin molding apparatus 100 on the touch panel 9. The CPU1 is realized by the control unit 10, the abnormality detection unit 11, and the timer unit 12, the control unit 10 controls the operation of each part of the resin molding apparatus 100 by executing a program or the like stored in the storage unit 8, the abnormality detection unit 11 detects an abnormality of the drive mechanism, and the timer unit 12 counts the elapsed time.

Unless otherwise specified, the operation of the resin molding apparatus 100 described below is performed based on an operation command of the control section 10. In the following description, an operation command of the control unit 10 will be omitted in principle, and an operation command of the control unit 10 will be described as necessary.

The resin molding apparatus 100 is configured by sequentially connecting the inner module M1, the mold module M2, and the outer module M3 in an integrated apparatus, wherein the inner module M1 includes an inner magazine 7 and the like for accommodating a plurality of lead frames 3, the mold module M2 includes a molding die 20, the outer module M3 includes an outer magazine 72, the outer magazine 72 accommodates a molded product 30, and the molded product 30 is formed by molding the lead frames 3 with a resin 39. The inner module M1, the mold module M2 and the outer module M3 are provided thereon with guides G arranged in a continuous line on each of the modules. The guide G is a rail-shaped member for running the loader 40 and the unloader 44, which will be described later. The guides G are respectively arranged on the back side (upper side in fig. 1) of each module.

The resin molding apparatus 100 of the present embodiment includes two mold modules M2. The resin molding apparatus 100 may have only one mold block M2, or may have three or more mold blocks M2.

Driving mechanism

As shown in fig. 1, the driving mechanism includes a feeder 40, a lead frame supply unit 42, a blanking machine 44, a transfer mechanism 46 (see fig. 2), and a mold locking mechanism 48.

The loader 40 is a transfer mechanism for transferring the lead frame 3 into the molding die 20. The lead frame supply unit 42 is a transfer mechanism that pushes out the lead frames 3 from the inner cassette 7 and transfers them to the alignment mechanism 70. The unloader 44 is a transfer mechanism that removes the molded product 30 from the molding die 20. As shown in fig. 2, the transfer mechanism 46 is a mechanism for supplying the resin 39 from the material tank 23a to the cavity 21b in the mold 20. The mold clamping mechanism 48 clamps the mold 20.

The feeder 40, the lead frame supply unit 42, and the unloader 44 respectively have a first actuator 50 (one example of a transfer-in actuator), a second actuator 52 (another example of a transfer-in actuator), and a third actuator 54 (one example of a transfer-out actuator). The transfer mechanism 46 has a first auxiliary motor 56. The clamping mechanism 48 has a second auxiliary motor 58.

The first actuator 50, the second actuator 52, and the third actuator 54 are air cylinders 500 (an example of a cylinder) adapted to respective installation positions or distances to drive respective portions, and the like. As shown in fig. 3, the cylinder 500 has a piston rod L and a cylinder tube 501 adapted to the setting position or the distance to drive each part, etc. Each actuator has sensors Sa, Sb for detecting the position of the piston rod L.

One end of the piston rod L is accommodated in the cylinder 501. The end of the piston rod L on the side received in the cylinder 501 has a piston 503. The distal end Lt of the piston rod L is provided with a detection section Ls for detecting the position of the piston rod L by each of the sensors Sa and Sb.

The cylinder 501 has gas supply and discharge

passages

505 and 506 at positions located on the front side (right side in fig. 3) and the rear side (left side in fig. 3) of the piston 503 in the extending direction of the piston rod L (hereinafter simply referred to as the extending direction). By discharging air from the gas supply and discharge passage 505 and supplying air to the gas supply and discharge passage 506, or by supplying air to the gas supply and discharge passage 505 and discharging air from the gas supply and discharge passage 506, a pressure difference is generated on the front and rear sides in the extending direction of the piston 503 in the cylinder 501, so that the piston 503 can be moved in the front and rear direction. The piston 503 moves forward and backward, and the top end Lt of the piston rod L exposed to the outside of the cylinder 501 moves forward and backward relative to the cylinder 501 to reciprocate. Hereinafter, an operation in which the distal end Lt advances in a direction away from the cylinder 501 is referred to as a forward stroke, and an operation in which the distal end Lt retreats in a direction toward the cylinder 501 is referred to as a backward stroke.

The supply and discharge of air to and from the gas supply and discharge channel 505 and the gas supply and discharge channel 506 are performed by a known method such as opening and closing of a solenoid valve (not shown) for compressing air. Therefore, the description of the advance and retreat of the piston rod L with respect to the supply and discharge of air to and from the gas supply and discharge passage 505 and the gas supply and discharge passage 506 will be omitted below. Hereinafter, the case where the control unit 10 executes an operation command for opening and closing the electromagnetic valve and advances and retreats the actuator will be simply described as the case where the control unit 10 commands the actuator to advance and retreat, and the like.

In fig. 3, the piston rod L at the most retracted position is illustrated as a most retracted position La shown by a solid line. The most advanced position Lb shown by a broken line in fig. 3 is shown as the piston rod L being at the most advanced position. In the following description, the case of driving or moving by the advancing and retreating of the piston rod L will be simply described as the case of driving, moving, operating, or the like by the actuator.

The sensors Sa and Sb are sensors for detecting that the piston rod L is located at the most retracted position La or the most advanced position Lb. The first sensor Sa detects that the piston rod L is located at the most retracted position La. The second sensor Sb detects that the piston rod L is located at the most advanced position Lb. The first sensor Sa and the second sensor Sb detect that the piston rod L is located at the most retracted position La or the most advanced position Lb, respectively, when the detected portion Ls approaches. In the present embodiment, the sensors Sa and Sb are proximity sensors for detecting the approach of the detection target portion Ls using a magnetic field or light, for example.

Lead frame supply unit

The lead frame supply unit 42 shown in fig. 1 is a mechanism that pushes out one lead frame 3 at a time from the inner magazine 7 and transfers it to the alignment mechanism 70, wherein the inner magazine 7 is a housing container that houses a plurality of lead frames 3 at intervals in the vertical direction. The lead frame supply unit 42 has a second actuator 52. In the present embodiment, the lead frame supply unit 42 pushes out the lead frames 3 from the inner magazine 7 by the second actuator 52, and transfers the lead frames 3 to the alignment mechanism 70 disposed adjacent to the inner magazine 7. The aligning mechanism 70 includes a rotary disk 70a, and when the lead frame 3 is mounted on the rotary disk 70a, the rotary disk 70a is rotated to align the lead frames 3 in a state suitable for the feeder 40 to pick up the lead frames 3. The lead frame supply unit 42, the inner cassette 7, and the aligning mechanism 70 are provided on the inner module M1. The lead frame 42, the inner cassette 7, and the aligning mechanism 70 are arranged in the inner module M1 at a position on the front side (lower side in fig. 1) than the guide G.

Forming mechanism

The molding mechanism 2 shown in fig. 2 is a mechanism for molding the lead frame 3 by using a mold 20. The molding mechanism 2 is provided with one mold block M2. The molding mechanism 2 is disposed at a position of the mold module M2 on the front side of the guide G.

As shown in fig. 2, the molding mechanism 2 includes an upper mold 21 and a lower mold 22 as a molding die 20, a trough 23a, a transfer mechanism 46 having a plunger 23, a heater 24, an upper fixed disk 25, and a movable disk 26. A hopper 23a is formed in the lower mold 22 and temporarily stores a resin 39 for molding, a plunger 23 is used to supply the resin 39 from the hopper 23a to the cavity 21b, a heater 24 is used to heat the molding die 20, an upper fixed disk 25 fixes and supports the upper mold 21, and a movable disk 26 fixes and supports the lower mold 22. The movable platen 26 is elevated upward and downward by the second auxiliary motor 58 of the mold clamping mechanism 48. The resin 39 is supplied from the resin supply device 79 to the trough 23a according to the required amount.

In the mold 20, the lead frame 3 is mounted on a recess 22a formed on the upper surface of the lower mold 22. Fig. 2 shows a state in which the semiconductor chip 3a is mounted on the lead frame 3 and the semiconductor chip 3a is connected to the bonding wire 3 b.

The lower surface of the upper die 21 is formed with a recess 21a and a recess 21 c. The lead frame 3 is mounted on the recess 22a through the recess 21a, and a cavity 21b is formed between the lead frame 3 and the upper mold 21 in a state where the upper mold 21 and the lower mold 22 are closed. In a state where the upper die 21 and the lower die 22 are closed, a resin flow passage 21d is formed between the upper die 21 and the lower die 22 through the concave portion 21c, and the resin flow passage 21d communicates from the trough 23a to the cavity 21 b.

The molding mechanism 2 closes the upper mold 21 and the lower mold 22 by the mold clamping mechanism 48 in a state where the lead frame 3 is accommodated between the upper mold 21 and the lower mold 22. In the step of preheating the upper mold 21 and the lower mold 22 by the heater 24 and melting the resin 39 by heat transfer from the lower mold 22, the resin 39 is pushed out from the hopper 23a by the plunger 23. The melted resin 39 is supplied to the cavity 21b through the resin flow passage 21 d. Thereby, the lead frame 3 is molded (i.e., transfer molded) with the resin 39.

Feeding machine

The loader 40 shown in fig. 1 is a transfer mechanism for transferring the lead frame 3 into the molding die 20. The feeder 40 is movable along the guide G from the inner mold block M1 across to the mold block M2. The loader 40 includes a loader pickup portion 40a, and the loader pickup portion 40a is used to pick up the lead frame 3 and the resin 39.

The feeder pickup portion 40a is provided with a plurality of pairs of claws (not shown) extending downward. The feeder pickup unit 40a picks up the lead frame 3 from the drive mechanism 70 by driving the pair of grippers by the first actuator 50, transfers the lead frame onto the lower mold 22 (see fig. 2) of the mold 20, and mounts (moves in) the lead frame onto the lower mold 22. The picking operation by the loader picking section 40a will be simply described as picking hereinafter.

The picking of the lead frame 3 by the loader picking section 40a is performed as follows: first, the feeder pickup portion 40a opens the pairs of claws at a distance from each other by the first actuator 50. In this state, the loader pickup portion 40a is lowered so that the pairs of grips are along the front and rear sides in the short side direction of the lead frame 3. The feeder pickup portion 40a further folds the pairs of the claws close to each other by the first actuator 50, thereby picking up the lead frame 3 along the front and rear sides in the short side direction. The loader pickup portion 40a is lifted in a state of gripping the lead frame 3.

The feeder pickup unit 40a drives the claw by another actuator (not shown) to pick up the resin 39 from the resin supply device 79. The pickup of the resin 39 is performed in the same manner as the pickup of the lead frame 3. However, in the present embodiment, each claw picks up one resin 39.

The feeder pickup portion 40a can advance or retract from the back surface side toward the front surface side by an auxiliary motor (not shown). While the feeder 40 moves from the inner mold M1 to the mold module M2, the feeder pickup portion 40a is advanced or retreated, and the lead frame 3 is picked up from the alignment mechanism 70 and moved into the mold 20. Further, while the feeder 40 moves from the inner mold M1 to the mold module M2, the feeder pickup portion 40a is advanced or retreated, and the resin 39 is picked up from the resin supply device 79 and moved into the mold 20.

Blanking machine

The unloader 44 shown in fig. 1 is a transfer mechanism for removing the molded product 30 from the mold 20. The blanking machine 44 is movable along the guide G from the mold block M2 across the outer block M3. The unloader 44 has an unloader pickup portion 44a for picking up the molded product 30 and the like. The unloader pickup portion 44a can advance or retreat from the back side toward the front side by an auxiliary motor (not shown). While the unloader 44 moves across the outer mold block M3 from the mold block M2, the unloader pickup portion 44a is advanced or retreated to pick up the molded article 30 from the lower mold 22 (see fig. 2) of the molding die 20, and the molded article is moved into the gate removing mechanism 71 of the outer mold block M3. The feeder 44 further transfers the processed molded product 31 into the outer magazine 72, and stores the processed molded product 31, which is the molded product 30 with the gate removed by the gate removing mechanism 71.

Further, the unloader pickup portion 44a includes a plurality of pairs of claws extending downward, as in the loader pickup portion 40 a. The picking action of the unloader pickup portion 44a is performed in the same manner as the picking action of the loader pickup portion 40 a.

Timing part

The timer unit 12 is a functional unit for counting the time elapsed. The timer unit 12 counts the elapsed time based on, for example, reference vibration of the vibrator or the like. In the present embodiment, the timer unit 12 counts the operation time of the process or the return when the control unit 10 commands the actuator to advance or retreat. Here, the stroke refers to a path from the most retracted position La to the most advanced position Lb of the piston rod L.

In the present embodiment, the operating time of the process is a time from when the control unit 10 commands the actuator to advance to when the second sensor Sb detects the approach of the detection target Ls. Hereinafter, the operation time of a process is referred to as a process time.

In the present embodiment, the operation time of the return stroke is a time from when the controller 10 commands the actuator to retreat to when the first sensor Sa detects the approach of the detection section Ls. Hereinafter, the operation time of the backhaul will be referred to as a backhaul time. In the following description, when any one of the progress time and the backhaul time is generally described, the description will be given by simply describing the time as an operation time.

Abnormality detection unit

The abnormality detection unit 11 is a functional unit for detecting an abnormality of the drive mechanism. The abnormality detection unit 11 compares the respective process times and return times of the respective actuator operations measured by the time measurement unit 12 with reference ranges of process times (hereinafter referred to as process references) and return times (hereinafter referred to as return references) which are preset for the respective actuators. Then, an executor, at least either of which deviates from the process reference or the backhaul reference (reference range), is identified as an abnormal executor.

The values of the process reference and the backhaul reference corresponding to the respective actuators are stored in the storage unit 8. As the process reference, for example, a lower limit value larger than zero and an upper limit value larger than the lower limit value are stored, and a range of the lower limit value or more and the upper limit value or less is defined as a reference range of the process reference. The backhaul standard stores a lower limit value larger than zero and an upper limit value larger than the lower limit value, as in the case of the process standard, and a range between the lower limit value and the upper limit value is defined as a backhaul standard reference range. In the following, when a general description is given of the schedule reference and the backhaul reference, only the description is given with reference to the ranges.

Further, the actuator for which the reference range is not set is not the object of recognition by the abnormality detection section 11 as an abnormal actuator. In the present embodiment, an actuator whose corresponding process reference or backhaul reference is not stored in the storage unit 8, or an actuator whose process reference or backhaul reference stores zero is not a target to be identified as an abnormal actuator.

Control unit

As described above, the control unit 10 is a functional unit that controls the operation of each unit of the resin molding apparatus 100. As one control operation for controlling the operations of the respective parts of the resin molding apparatus 100, the control section 10 executes the following abnormality processing. The exception processing is stop control as follows: when one of the actuators is recognized as an abnormal actuator by the abnormality detection unit 11, a program corresponding to the actuator recognized as the abnormal actuator is selected from among a plurality of device stop processing programs set in advance and executed to stop the resin molding device 100. A plurality of device stop processing programs are stored in the storage unit 8 in advance. In the present embodiment, the execution device stops the processing program when the user inputs an end instruction or when the job ends. The normal (normal) stop processing routine of the resin molding apparatus 100 is another stop processing routine, that is, a stop processing routine for performing an emergency stop or a preventive stop. The device stop processing routine will be described later.

Touch panel

The touch panel 9 is an input interface for receiving an operation command related to molding of the resin molding apparatus 100 or information related to abnormality processing from a user, and is a display device for displaying various output information of the resin molding apparatus 100. The touch panel 9 is, for example, a touch panel device that realizes double display of various output information of the resin molding device 100 and reception of input from a user setting. In addition, other combinations of input interfaces and display devices may be used instead of the touch panel.

The touch panel 9 receives user input of a progress reference or a return reference for each actuator, and stores the input in the storage unit 8. When the

actuators

50, 52, and 54 are detected as abnormal actuators, the touch panel 9 receives a selection instruction (an example of information relating to abnormal processing) from the user as to whether or not to stop the resin molding apparatus 100 according to one of the apparatus stop processing programs, and stores (presets) the selection instruction in the storage unit 8.

In the present embodiment, the

actuators

50, 52, 54 to which at least one of the process reference and the return reference is input are stored in the storage unit 8 as the objects of identification of the abnormal actuators via the touch panel 9. When the

actuators

50, 52, 54 are detected as abnormal actuators, and when the user does not input a selection instruction as to whether or not to stop the resin molding apparatus 100 according to one of the apparatus stop processing programs, the selection setting (preset) stored in advance in the storage unit 8 is selected instead of the selection instruction by the user.

In the present embodiment, the touch panel 9 displays, as one of the displays of various output information, each of the progress time and the return time of the operation of each of the

actuators

50, 52, and 54 to be recognized as an abnormal actuator. When the execution of the exception processing is started, the effect thereof and the execution content of the exception processing are displayed.

General description of operation of resin molding apparatus

A general description will be given of a method and an operation for molding the lead frame 3 by the resin molding apparatus 100. First, the lead frame supply unit 40 pushes out the lead frame 3 from the inner magazine 7 and transfers it to the alignment mechanism 70. When the lead frames 3 are mounted on the rotary disk 70a, the arraying mechanism 70 rotates the rotary disk 70a to array the lead frames 3 in a state suitable for the feeder 40 to pick up the lead frames 3. Next, the feeder 40 moves to above the aligning mechanism 70. The feeder pickup portion 40a of the feeder 40 picks up the lead frame 3. Next, the resin 39 is picked up from the resin supply device 79. The lead frame 3 and the resin 39 are moved into the molding die 20 by the feeder 40 moving from the inner die M1 to the die M2 along the guide G. After the feeder 40 moves the lead frame 3 and the resin 39 into the molding die 20, it returns to the inner module M1. The feeder 40 returning to the inner module M1 continuously picks up the lead frames 3 pushed out from the lead frame supply unit 42, picks up the resin 39 from the resin supply device 79, and waits until the molding of the lead frames 3 previously moved into the molding die 20 is completed. As shown in fig. 1, when there are a plurality of die modules M2, the loader 40 may move to another unmolded die module M2 and move the lead frame 3 and the resin 39 into the molding die 20. Thereafter, the lead frame supply unit 42, the resin supply device 79, and the loader 40 repeatedly perform the same operation.

When the lead frame 3 and the resin 39 are moved into the molding mechanism 2, the upper mold 21 and the lower mold 22 of the molding die 20 are closed by the mold locking mechanism 48. Thereafter, in the step of melting the resin 39 by the preheated molding die 20, the resin 39 is pushed out to the cavity 21b by the plunger 23. Thus, the lead frame 3 is molded with the resin 39 to obtain the molded product 30. When the molded product 30 is obtained, the molding mechanism 2 opens the upper mold 21 and the lower mold 22.

The blanking machine 44 moves from the outer mold block M3 to the mold module M2, and picks up the molded product 30 from the molding die 20. The molding mechanism 2 that picks up the molded product 30 waits for the next lead frame 3 to be moved in by the feeder 40. Thereafter, the molding mechanism 2 repeatedly performs the same operation.

The unloader 44, which picks up the molded article 30 from the molding die 20, moves from the mold block M2 to the outer block M3, and moves the molded article 30 into the gate removing mechanism 71. The molded product 30 is gated off by the gate removing mechanism 71. The processed molded product 31 is picked up by the unloader 44, transferred, and accommodated in the outer magazine 72. The blanking machine 44 stands by until the molding mechanism 2 molds the next molded product 30. Thereafter, the blanking machine 44 repeatedly performs the same operation.

Device stop processing program

In the present embodiment, as the device stop processing program for recognizing the abnormal actuator, at least the first device stop processing program and the second device stop processing program are stored (preset) in the storage unit 8.

The first device stop processing routine is as follows: the lead frame supply unit 42 or the loader 40 stops (prohibits) the movement of the lead frame 3 and the resin 39 into the molding die 20, and when the lead frame 3 is in the molding process in the molding die 20, the operation of the resin molding apparatus 100 is stopped so as not to remove the molded product 30 from the molding die 20 after the molding of the lead frame 3 in the molding process. Further, the concept in the molding process includes a case where the movement of the lead frame 3 and the resin 39 into the molding die 20 has been completed.

When the first device stop processing program is executed, the control unit 10 displays an effect (an example of execution contents of the abnormal processing) of starting execution of the first device stop processing program on the touch panel 9 as one of the displays of various output information. The effect of starting execution of the first device stop processing program is displayed, for example, as "error display".

In the first device stop process, even when the lead frame 3 is moving into the molding die 20, the movement of the lead frame 3 and the resin 39 into the molding die 20 is stopped. In the process of moving the lead frame 3, the lead frame 3 is pushed out from the inner magazine 7 by the lead frame feeding unit 42, and then the feeder 40 moves the lead frame 3 and the resin 39 into the inside of the molding die 20.

After the first apparatus stop process is completed for the lead frame 3 during the molding process, the molded product 30 remains in the mold 20. The actuator identified as the abnormal actuator returns (moves) to a preset stop state when the operation of the resin molding apparatus 100 is stopped. The preset stop state is, for example, a stop state of the actuator in a stop state of the normal (normal) resin molding apparatus 100. As a result, the actuator is stopped in the normal stop state as described above, and thus inspection and maintenance of the actuator can be appropriately performed. Further, as described above, when the molding operation is started (restarted) after the actuator is checked or the like by stopping the actuator in the normal stop state, the state at the time of stopping the actuator does not affect the start of the molding operation of the resin molding apparatus 100, and the resin molding apparatus 100 can be normally started (restarted).

The preset is set to select and execute the first device stop processing program when an actuator for moving the lead frame 3 into the molding die 20, such as the first actuator 50 of the loader 40 or the second actuator 52 of the lead frame supply unit 42, is recognized as an abnormal actuator by the abnormality detection section 11. Since the lead frame 3 transferred by the loader 40 or the lead frame supply unit 42 is not yet molded with the resin 39 and is therefore fragile, when the

actuators

50 and 52 are abnormal, for example, the lead frame 3 or the bonding wire 3b may be deformed or damaged, which may cause an inappropriate molded product 30 to be manufactured (molded). Hereinafter, the molded article 30 in which deformation, damage, or other defects of the lead frame 3 or the bonding wire 3b may occur or may occur is referred to as an "unsuitable molded article 30".

When the lead frame 3 deviates from the lead frame reference value in accordance with the progress time of the second actuator 52 being in a state of not reaching the lower limit value, the speed at which the second actuator 52 pushes out the lead frame 3 becomes excessively fast. As a result, excessive force is applied to the lead frame that is pushed out, and thus, for example, the lead frame 3 or the bonding wire 3b may be deformed or damaged. As a result, there is a risk that an unsuitable molded article 30 is produced (molded). Similarly, when the lead frame 3 is pushed out by the first actuator 50, the speed at which the lead frame 3 is pushed out by the first actuator 50 becomes too fast, even if the lead frame is deviated from the reference time of progress in a state where the progress time of the first actuator 50 has not reached the lower limit value. As a result, excessive force is applied to the lead frame 3 during the transfer, and there is a possibility that, for example, the lead frame 3 or the bonding wire 3b is deformed. However, as described above, by executing the first apparatus stop processing routine when the

actuators

50, 52 are recognized as abnormal actuators, it is possible to prevent the production of an unsuitable molded product 30. In addition, it is possible to implement preventive protection for the actuator identified as the abnormal actuator. When the process time of the

actuators

50 and 52 is not equal to the lower limit value and deviates from the process reference (abnormal operation time is too fast), an impact due to the operation of the

actuators

50 and 52 is applied to the loader 40 or the lead frame supply unit 42, which may cause a failure.

When the return time of the

actuators

50 and 52 is not equal to the lower limit value and deviates from the return reference, an impact associated with the operation of the

actuators

50 and 52 is applied to the loader 40 or the lead frame supply unit 42, which may cause a failure, as in the case of the schedule time. If the stroke time or return time of the

actuators

50 and 52 exceeds the upper limit value and deviates from the stroke reference or return reference (abnormal condition where the operation time of the actuators is too slow), the lead frame 3 is pushed out or transferred too slowly, and the throughput of the resin molding apparatus 100 is reduced.

The second device stop processing routine is as follows: after the molded product 30 is removed from the mold 20 by the unloader 44, the operation of the resin molding apparatus 100 is stopped. In the second device stop processing routine, when the feeder 40 is in the process of moving the lead frame 3 or the resin 39 into the molding die 20, the molding of the lead frame 3 and the removal of the molded article 30 are executed before the operation of the resin molding device 100 is stopped.

When the second device stop processing program is executed, the control unit 10 displays an effect (an example of execution contents of the abnormal processing) that the second device stop processing program starts to be executed, as one of the displays of various output information, on the touch panel 9. The effect of the second device stopping the start of execution of the processing program is displayed, for example, in "alarm display".

In the second apparatus stop process, when the lead frame 3 is being moved into the molding die 20, the lead frame 3 in the process is completely molded. After that, after all the molded products 3 are accommodated in the outer box 72, the operation of the resin molding apparatus 100 is stopped. In the second apparatus stop process sequence, the supply (re-movement) of a new lead frame 3 from the inner cassette 7 is not performed. When the operation of the resin molding apparatus 100 is stopped, all the actuators are moved to a predetermined stop state. The preset stop state is the same as the stop state of the actuator in the stop state of the normal (normal) resin molding apparatus 100.

The preset is set so that the second device stop processing program is selected and executed when the third actuator 54 is recognized as an abnormal actuator by the abnormality detection section 11. In the present embodiment, when the actuator for removing the molded article 30, such as the third actuator 54, is recognized as an abnormal actuator by the abnormality detection unit 11, it is set to select and execute the second apparatus stop processing program.

Even if the third actuator 54 is recognized as an abnormal actuator, the molded article 30 which is not properly molded is not immediately formed, but there is a possibility that a problem will eventually occur in removing the molded article 30. For example, when the operating time of the third actuator 54 exceeds the upper limit value and deviates from the reference range, the removal of the molded article 30 is delayed, and the throughput of the resin molding apparatus 100 is reduced. When a problem occurs in removing the molded article 30, it is necessary to stop the resin molding apparatus 100 and perform maintenance on the actuator identified as the abnormal actuator. In particular, there is a problem in that the resin molding apparatus 100 is forcibly stopped inadvertently (suddenly or unplanned). Here, as described above, when the third actuator 54 is identified as an abnormal actuator, the second device stop handler is executed without executing the first device stop handler. This makes it possible to protect actuators identified as abnormal actuators from damage.

Further, when the operating time of the third actuator 54 is out of the reference range without reaching the lower limit value, an impact associated with the operation of the third actuator 54 is applied to the blanking machine 44, which may cause a failure.

In the second apparatus stop processing routine, in order to continuously carry out the process of accommodating the molded article 30 in the outside magazine 72 immediately after the molding of the lead frame 3 in the process of being moved in, the time from the start of the second apparatus stop processing routine to the stop of the resin molding apparatus 100 is longer than the time from the start of the first apparatus stop processing routine to the stop of the resin molding apparatus 100. Therefore, when the third actuator 54 is identified as an abnormal actuator, the user can start preparation for maintenance of the third actuator 54 identified as an abnormal actuator before the resin molding apparatus 100 is stopped by executing the second apparatus stop processing program instead of the first apparatus stop processing program. Further, the user can recognize the necessity of starting maintenance preparation by the alarm information displayed on the touch panel 9.

Description of device stop processing

The flow of the apparatus stop process will be described below with reference to the flowcharts of fig. 4 to 6.

A flow chart of exception handling is shown in fig. 4. When the control unit 10 executes the operation start command to the actuator (#41), the timer unit 12 starts counting the operation time (# 42). After the timer unit 12 counts the operating time of the actuator and acquires the operating time, the control unit 10 stores the operating time in the storage unit 8 and displays the operating time on the touch panel 9 (# 43).

When the operating time of the actuator is stored in the storage unit 8, the abnormality detection unit 11 compares the operating time with the reference range corresponding to the actuator for which the operating time is acquired, and returns to #41 when the operating time is within the reference range (#44, Yes). When the operation time is out of the reference range (#44, No), the actuator is identified as an abnormal actuator and the routine moves to # 45.

When the actuator identified as the abnormal actuator is the target of the first device stop processing program (#45, Yes), the control portion 10 starts execution of the first device stop processing program (#46) and ends. When the actuator whose operation time is outside the reference range is not the target of the first device stop processing program (#45, No), the control portion 10 starts execution of the second device stop processing program (#47) and ends. If the actuator whose operation time is outside the reference range is not the target of the first device stop process program (#45, No), the control unit 10 may control to determine whether or not the actuator is the target of the second device stop process program, and if it is determined that the actuator is the target of the second device stop process program, the control unit may start executing the second device stop process program (# 47).

Fig. 5 shows a flowchart of the first device stop processing routine. When the execution of the first device stop processing program is started, the control section 10 displays the effect (error display) on the touch panel 9 (# 51). Further, the control unit 10 stops the lead frame supply unit 42 or the loader 40 to move the lead frame 3 (molding target) into the mold 20 (# 52).

When the movement of the lead frame 3 (to be molded) into the mold 20 is completed (#53, Yes), the molding is immediately performed (#54), and the mold 20 is opened after the molding. The actuator identified as the abnormal actuator moves to a preset stop state (# 55). Then, the resin molding device 100 is stopped (# 56).

When the lead frame 3 (molding target) is not moved into the mold 20 (#53, No), the control unit 10 moves the actuator identified as the abnormal actuator to a predetermined stop state (#55), and then stops the resin molding apparatus 100 (# 56).

Fig. 6 shows a flowchart of the second device stop processing routine. When the execution of the second device stop processing program is started, the control section 10 displays the effect (alarm display) on the touch panel 9 (# 61). Further, the control section 10 stops the re-movement of the lead frame from the inner box 7 (# 62).

The control portion 10 molds all the lead frames 3 in the process of moving in (#63), takes out the molded product 30 from the molding die 20 and stores it in the outer box 72 (#64), and after that, the control portion 10 stops the resin molding apparatus 100 after moving all the actuators to a preset stop state (# 65).

As described above, it is possible to provide a resin molding apparatus and a method of manufacturing a resin molded product, which are appropriately stopped in response to an abnormality in the drive mechanism.

Other embodiments

(1) In the above embodiment, the following is explained: the preset setting is such that when an actuator for moving the lead frame 3 into the molding die 20, such as the first actuator 50 or the second actuator 52, is recognized as an abnormal actuator by the abnormality detection section 11, the first device stop processing program is selected and executed. However, the case where the first device stop processing program is selected is not limited to the above-described embodiment.

It may be arranged that, when one of the second actuator 52 and the first actuator 50 is recognized as an abnormal actuator by an input from the user of the touch panel 9, the first device stop handler is selected. In addition, the first device stop processing routine may be selected when the first auxiliary motor 56 of the transfer mechanism 46 or the third actuator 54 of the blanking machine 44 is recognized as an abnormal actuator.

(2) In the above embodiment, the following is explained: the presetting is set to select the second device stop processing program when an actuator for removing the molded product 30, such as the third actuator 54, is recognized as an abnormal actuator by the abnormality detection section 11. However, the case where the second device stop processing program is selected is not limited to the above-described embodiment.

It may be arranged that the second device stop processing program is selected when the third actuator 54 is recognized as an abnormal actuator by an input from the user of the touch panel 9.

(3) In the above embodiment, the case where the first device stop processing program is the following stop processing program has been exemplarily described: when the lead frame 3 is in the process of molding in the mold 20, the operation of the resin molding apparatus 100 is stopped after the lead frame 3 in the process of molding is molded, and the molded article 30 is not removed from the mold 20. However, the first apparatus stop process is not limited to the case where the operation of the resin molding apparatus 100 is stopped and the molded product 30 is not removed from the mold 20.

The first device stop processing program may be any stop processing program as follows: the lead frame supply unit 42 or the loader 40 stops (prohibits) the lead frame 3 and the resin 39 from being moved into the molding die 20, and stops the operation of the resin molding apparatus 100 after the lead frame 3 in the molding process is molded while the lead frame 3 is in the molding process in the molding die 20. For example, the first device stop processing program may be the following stop processing program: when the lead frame 3 is in the process of molding in the molding die 20, the lead frame 3 in the process of molding is removed after molding, and the operation of the resin molding apparatus 100 is stopped after the removal.

(4) In the above embodiment, the case where each actuator is the cylinder 500 is explained. However, as the actuator, an oil cylinder, an assist motor, an electromagnetic solenoid, a combination of a reciprocating cam mechanism and a motor, or the like may be used.

(5) In the above embodiment, the case where the abnormality detection unit 11 recognizes an actuator in which at least one of the progress time and the return time deviates from the reference range as an abnormal actuator has been described. However, the abnormality detection unit 11 may recognize an actuator in which only one of the schedule time and the return time is out of the reference range as an abnormal actuator. That is, the abnormality detection unit 11 may recognize only an actuator whose process time is out of the reference range as an abnormal actuator. Or, the abnormality detection unit 11 may recognize only an actuator whose return time is out of the reference range as an abnormal actuator.

(6) In the above embodiment, the case where the abnormality detection unit 11 recognizes an actuator whose operation time deviates from the reference range as an abnormal actuator has been described. In this case, the deviation from the reference range means that the operation time does not reach the lower limit value or exceeds the upper limit value of the reference range. However, the abnormality detection unit 11 may recognize only an actuator whose operating time has not reached the lower limit value as an abnormal actuator. As described above, by only identifying an actuator having an abnormality when the operation time is too short as an abnormal actuator, it is possible to prevent an inappropriate molded product 30 from being produced.

(7) In the above embodiment, the operation time of the process is exemplified by the time from when the control unit 10 commands the actuator to advance until the second sensor Sb detects the approach of the detected portion Ls. However, as the operation time of the process, there is also a time taken until the piston rod L moves from the last retracted position La to the most advanced position Lb. In this case, the timing start reference of the operation time is set to a time when the first sensor Sa cannot detect the approach of the detected portion Ls.

(8) In the above embodiment, the operation time of the return stroke is exemplified by the time from when the controller 10 commands the actuator to retreat to when the first sensor Sa detects the approach of the detection section Ls. However, as the operation time of the return stroke, there is a time taken until the piston rod L moves from the most advanced position Lb to the most retracted position Lb, and in this case, a time when the second sensor Sb cannot detect the approach of the detection object Ls is used as a timing start reference of the operation time.

(9) In the above embodiment, the case where the resin molding apparatus 100 resin-molds the lead frame 3 with the resin 39 using the mold 20 has been described. However, the object that can be molded by the resin molding apparatus 100 is not limited to the lead frame 3. The resin molding apparatus 100 can mold a metal substrate, a resin substrate, a glass substrate, a wiring substrate, a semiconductor substrate, and other substrates.

(10) In the above embodiment, the case where the forming mechanism 2 uses the transfer forming method, which is a forming method in which: in the step of melting the resin 39 by the mold 20 heated by the heater 24 in a state where the lead frame 3 is accommodated in the mold 20, the molding mechanism 2 pushes the resin 39 out of the hopper 23a by the plunger 23 and supplies the resin into the cavity 21b, thereby molding the lead frame 3 with the resin 39. However, the molding mechanism 2 is not limited to being implemented according to the transfer molding method. For example, the molding mechanism 2 may also perform compression molding. Further, the compression molding method is, for example, a resin molding method as follows: the molding mechanism 2 supplies liquid or granular resin directly to the cavity 21b of the mold 20, melts the resin, and then immerses the molding object such as the lead frame 3 in the melted resin to perform resin molding.

(11) In the above-described embodiment, the case where the control portion 10 starts executing the second device stop processing program (#47) and ends when the actuator whose operation time is outside the reference range is not the target of the first device stop processing program (#45, No) has been exemplarily described. However, the order of starting the first device stop processing routine and the second device stop processing routine is not limited to this. For example, instead of the determination of the first device stop processing program in #45, it may be determined whether or not an actuator whose operation time is outside the reference range is the target of the second device stop processing program. In this case, the second device stop processing program is executed when it is a target of the second device stop processing program. When the second device is not a target for stopping the processing program, the first device stops the processing program. Further, when the second device does not stop the processing program, the control unit 10 may further determine whether the executor is the target of the first device to stop the processing program, and start execution of the first device to stop the processing program when the executor is the target of the first device to stop the processing program.

Note that the features disclosed in the above-described embodiments (including other embodiments, the same below) can be combined with the features disclosed in other embodiments and applied when there is no contradiction, and the embodiments disclosed in the present specification are illustrative, and the embodiments of the present invention are not limited thereto, and can be appropriately modified within a range not departing from the object of the present invention.

Summary of the above embodiments

The outline of the resin molding apparatus and the method of manufacturing a resin molded article described above will be described below.

The resin molding apparatus 100 for resin-molding the lead frame 3 (molding object) by the mold 20 includes: a drive mechanism for driving a plurality of portions of the resin molding apparatus 100; an abnormality detection unit 11, the abnormality detection unit 11 detecting an abnormality of the drive mechanism; and a control unit 10, the control unit 10 controlling the resin molding apparatus 100, the control unit 10 selecting and executing a program corresponding to the abnormality from among a plurality of apparatus stop processing programs set in advance.

With the above configuration, the resin molding apparatus 100 can be stopped by a program corresponding to an abnormality in the drive mechanism.

Here, it is preferable that the drive mechanism is capable of moving the lead frame 3 (molding object) into the molding die 20 and of moving the molded product 30 molded with the lead frame 3 out of the molding die 20; the plurality of device stop processing programs include: a first device stop process program for stopping the drive mechanism from moving the lead frame 3 into the molding die 20 and stopping the operation of the resin molding device 100 after the lead frame 3 is molded during the molding process; and a second device stop processing program for stopping the operation of the resin molding device 100 after the molded product 30 is removed from the mold 20 after the lead frame 3 which is in the process of being moved into the mold 20 by the drive mechanism is molded.

With the above configuration, the first device stop processing routine or the second device stop processing routine corresponding to the abnormality of the drive mechanism can be appropriately selected, and the resin molding device 100 can be stopped according to the selected device stop processing routine.

Further, it is preferable that the drive mechanism has a plurality of actuators disposed at different positions of the resin molding apparatus 100, and the abnormality detection portion 11 recognizes an actuator having an abnormality among the plurality of actuators as an abnormal actuator.

With the above configuration, the first device stop processing program or the second device stop processing program can be selected according to the actuator identified as the abnormal actuator, and the resin molding device 100 can be stopped according to the selected device stop processing program.

Further, it is preferable that the abnormality detection section 11 recognizes, as an abnormal actuator, an actuator whose action time of the preset action deviates from a preset reference range.

With the above configuration, the actuator that deviates from the reference range can be recognized as an abnormal actuator, and the resin molding apparatus 100 can be stopped according to the apparatus stop processing program corresponding to the recognition result.

Further, it is preferable that the abnormality detection section 11 recognizes, as an abnormal actuator, an actuator whose actuation time of the preset action does not reach a preset lower limit value.

With the above configuration, an actuator whose operation time of the preset operation has not reached the preset lower limit value can be recognized as an abnormal actuator, and the resin molding apparatus 100 can be stopped according to the apparatus stop processing program corresponding to the recognized configuration.

Further, the actuator preferably has a reciprocating cylinder 500 (cylinder), and the preset operation is at least one of the forward stroke operation and the return stroke operation.

With the above configuration, the reciprocating cylinder 500 can be used as the actuator.

Preferably, the drive mechanism includes actuators 50 and 52 (transfer-in actuators) for transferring the lead frame 3 (molding object) into the molding die 20 and a third actuator 54 (transfer-out actuator) for transferring the molded article 30 out of the molding die 20, and the control unit 10 executes the first device stop processing program when the

actuators

50 and 52 are recognized as abnormal actuators and executes the second device stop processing program when the third actuator 54 is recognized as an abnormal actuator.

With the above configuration, when the

actuators

50 and 52 are recognized as abnormal actuators, the resin molding apparatus 100 can be stopped according to the first apparatus stop processing program. When the third actuator 54 is recognized as an abnormal actuator, the resin molding apparatus 100 can be stopped according to the second apparatus stop processing program.

In addition, preferably, the resin molding apparatus further includes: a storage section 8; and a touch panel 9, wherein the touch panel 9 receives input of abnormality processing related information related to a device stop processing program to be selected correspondingly when an abnormality executor is recognized, and the control unit 10 stores the abnormality processing related information received by the touch panel 9 in the storage unit 8, and selects the device stop processing program based on the abnormality processing related information stored in the storage unit 8.

With the above configuration, when an abnormal actuator is recognized, information on an apparatus stop handler to be selected corresponding to the actuator recognized as the abnormal actuator can be input through the touch panel 9 and stored in the storage unit 8. Thereafter, the device can be selected to stop the processing program based on the information on the exception handling stored in the storage unit 8. This allows the user to select, based on his or her own intention, the device stop processing program to be selected in accordance with each actuator.

Further, according to the method for manufacturing a resin molded product using the resin molding apparatus 100, the same operational effects as those of the resin molding apparatus 100 can be obtained.

Industrial applicability

The present invention is applicable to a resin molding apparatus and a method for manufacturing a resin molded product.

Claims

1. A resin molding apparatus that resin-molds a molding object using a mold, wherein the resin molding apparatus comprises:

a drive mechanism for driving a plurality of portions of the resin molding apparatus;

an abnormality detection unit for detecting an abnormality of the drive mechanism; and

a control section for controlling the resin molding apparatus,

the control unit is capable of selecting and executing a program corresponding to the abnormality from among a plurality of device stop processing programs set in advance;

the drive mechanism is capable of moving the molding object into the molding die and removing a molded article molded from the molding die,

the device stop processing program includes, as a plurality of the device stop processing programs: a first device stop processing program that can stop the drive mechanism from moving the molding object into the mold and can stop the operation of the resin molding device after the molding object is molded during the molding process; and

and a second device stop processing program capable of stopping the operation of the resin molding device after the molded object is molded while being moved into the mold by the drive mechanism and the molded product is removed from the mold.

2. The resin molding apparatus according to claim 1,

the drive mechanism has a plurality of actuators disposed at different positions of the resin molding apparatus,

the abnormality detection unit may identify, as an abnormal actuator, the actuator in which the abnormality occurs among the plurality of actuators.

3. The resin molding apparatus according to claim 2,

the abnormality detection portion may be configured to recognize the actuator, in which an action time of a preset action deviates from a preset reference range, as the abnormal actuator.

4. The resin molding apparatus according to claim 2,

the abnormality detection portion may be configured to identify the actuator, for which an action time of a preset action does not reach a preset lower limit, as the abnormal actuator.

5. The resin molding apparatus according to claim 3 or 4,

the actuator has a cylinder that reciprocates, and the preset motion is at least any one of a stroke motion and a return motion.

6. The resin molding apparatus according to any one of claims 2 to 4,

the drive mechanism includes an actuator for moving in the molding object into the molding die and an actuator for moving out the molded article from the molding die,

the control unit executes the first device stop processing program when the transfer-in actuator is recognized as the abnormal actuator, and executes the second device stop processing program when the transfer-out actuator is recognized as the abnormal actuator.

7. The resin molding apparatus according to claim 5,

8. The resin molding apparatus according to any one of claims 2 to 4,

the resin molding apparatus further includes: a storage unit; and an input unit that receives input of information relating to abnormal processing relating to the device stop handler to be correspondingly selected when the abnormal executor is recognized,

the control unit may store the information on the abnormal processing received by the input unit in the storage unit, and may select the apparatus stop processing program based on the information on the abnormal processing stored in the storage unit.

9. The resin molding apparatus according to claim 5,

10. The resin molding apparatus according to claim 6,

11. The resin molding apparatus according to claim 7,

12. A method of manufacturing a resin molded article, wherein the resin molding apparatus according to any one of claims 1 to 11 is used.