TWI590938B - Mold - Google Patents

Description

Mold

The present invention relates to a die-casting mold for a die-cast machine, a mold for a resin molding die for an injection molding machine, and the like.

Patent Document 1 discloses a mold for resin molding used in an injection molding machine.

The resin molding mold includes a fixed side mold and a movable side mold, and each mold mounts a replaceable molding die (slide template) to the mold body (template body) by the fixed side mold and the movable side mold The mold is clamped so that the molding die of the fixed side mold comes into contact with the molding die of the movable side mold, thereby forming a cavity filled with the molten resin between the two molding dies.

Prior art literature

Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. Hei 9-1601

The resin molding die disclosed in Patent Document 1 mounts a molding die to a mold body by sliding a molding die in an orthogonal direction orthogonal to a mold clamping direction, and uses a sprue bush to form a mold. The direction is fixed to the mold body and the molding die, thereby joining the molding die to the mold body.

When the molding die is taken out, the fixing of the sprue bushing to the die body and the molding die is released, and the molding die is slid in the orthogonal direction orthogonal to the mold clamping direction and taken out from the die body.

As described above, when the mold is exchanged in order to mold the resin molded articles of different shapes, the fixing of the mold body and the molding die is released by manipulating the sprue bush using a tool to slide the molding die. And taking out from the mold body, sliding the new molding die to the mold body, and again using the tool to manipulate the sprue bushing, thereby fixing the mold body and the molding die, thereby using the tool to manipulate the sprue bushing The operation is troublesome and time consuming, and the mold replacement operation time is prolonged.

The present invention has been made to solve the above problems, and an object of the invention is to provide a mold which can fix a mold to a mold and release it in a short time, thereby shortening the mold replacement operation time.

The present invention is a mold to be replaceably mounted with a molding die 2b including a cavity, and a molding die 3b, the mold being characterized in that the mold 1 includes a molding die mounting portion 4 for mounting a molding die 2b, a molding die 3b; and a clamper 6, a molding die 2b, a molding die 3b The holder 6 is fixed to the molding die mounting portion 4; the holder 6 is fixed to the molding die mounting portion 4 at a position where the molding die 2b and the molding die 3b are fixed to the molding die mounting portion 4, and the molding die 2b and the molding die 3b are not fixed to the molding die mounting portion 4. Moving between the positions, a stopper 7 for holding and releasing the movable gripper 6 is provided on the mold 1, and the brake 7 is mounted to be held in a release position and a holding position. Moving between, the holding release position is a position for releasing the holding of the holder 6 at a position where the molding die 2b and the molding die 3b are fixed to the molding die mounting portion 4, the holding position is The position at which the holder 6 is held is not fixed to the position where the molding die 2b and the molding die 3b are fixed to the molding die attaching portion 4.

In the mold of the present invention, the molding die mounting portion 4 includes a base surface 4a that is in contact with the molding die 2b and the molding die 3b, and a contacted portion 4b that is disposed on the base surface 4a for the molding die 2b and the molding die. The periphery of the 3b is abutted; the holder 6 is freely movable between the abutting position and the retracted position, and the abutting position is protruded from the base surface 4a to abut against the molding die 2b and the periphery of the molding die 3b. In some cases, the molding die 2b and the molding die 3b are fixed to the position of the molding die mounting portion 4, and the retracting position is such that the molding die 2b and the molding die 3b are not fixed to the molding die mounting portion 4 from the base surface 4a. In position, the brake 7 can hold the gripper 6 in the retracted position.

In this way, the molding die 2b and the molding die 3b can be moved and moved in a direction orthogonal to the mold clamping direction of the mold 1, so that the mold can be opened. The mold can be replaced.

Further, by bringing the holder 6 into the abutting position, the molding die 2b and the formed die 3b can be fixed by the holder 6 and the abutted portion 4b, and the holder 6 can be placed in the retracted position. The mold can be removed by lifting the mold.

In the mold of the present invention, the molding die mounting portion 4 includes a base surface 4a, the molding die 2b, the molding die 3b are in contact with and moved with the base surface 4a, and the molding die 2b and the periphery of the molding die 3b include a molding die. 2b, one end surface of the both ends of the molding die 3b in the moving direction, the other end surface, and a pair of side faces on both sides in the direction orthogonal to the moving direction, the abutted portion 4b of the molding die mounting portion 4 includes one end face of the molding die The abutting end is abutted by the abutting portion 4c and the pair of side portions abutting against the pair of side faces of the molding die, and the holder 6 can abut against the other end surface of the molding die.

In this way, the molding die 2b, the one end surface and the pair of side faces of the molding die 3b can be fixed by abutting the one end abutting portion 4c and the pair of side abutting portions 4d, and the holder 6 can be held. It is fixed to the other end surface of the molding die 2b and the molding die 3b.

In the mold of the present invention, the abutting portions of the molding die 2b and the molding die 3b and the holder 6 can be inclined surfaces facing the moving direction of the molding die 2b and the molding die 3b, respectively.

In this way, one end surface of the molding die 2b and the molding die 3b can be strongly resisted. The one end abutted portion 4b is attached to the other end surface, and the molding die 2b and the molding die 3b are firmly fixed.

In the mold of the present invention, the holder 6 reciprocates in a through hole 27 formed in the base surface 4a of the molding die mounting portion 4, and the holder 6 is moved by the elongation of the spring 6a to An abutting position projecting from the base surface 4a, and by the contraction of the spring 6a, the gripper 6 is moved to a retracted position immersed from the base surface 4a, and a tab 64 is provided on the gripper 6, the brake 7 includes a support piece 70 that is in contact with the upper surface of the tab 64 of the holder 6 of the retracted position, the brake 7 being movable between a holding position and a holding release position, the holding position being the support piece 70 and the clip The tabs 64 of the holder 6 are brought into contact to maintain the holder 6 in the retracted position, which is the separation position of the support piece 70 from the tab 64 and the retracted position of the holder 6. Keep the position for release.

In the mold of the present invention, the mold 1 includes a fixed side mold 2 and a movable side mold 3, and the fixed side mold 2 includes a replaceable molding die 2b, a molding die mounting portion 4 on which the molding die 2b is mounted, and a holder 6 The brake 7, the movable side mold 3 may include a replaceable molding die 3b, a molding die mounting portion 4 on which the molding die 3b is mounted, a holder 6, and a stopper 7.

In the mold of the present invention, the movable side mold 3 of the mold 1 includes a movable body 34 including a discharge pin 8 for discharging a molded product from the molding die 3b of the movable side mold 3, and a through molding is provided on the molding die 3b. The pin of the die 3b is inserted through the hole 9, The movable body 34 is movable to a discharge position of the molded article, a discharge standby position, and a mold replacement position, and the discharge position of the molded product is a position at which the discharge pin 8 protrudes from the pin insertion hole 9 of the molding die 3b, and the discharge The standby position is a position at which the discharge pin 8 is immersed in the pin insertion hole 9, and the mold replacement position is a position at which the discharge pin 8 is immersed from the base surface 4a of the molding die mounting portion 4, and the movable body 34 can be made during the molding operation. The movement is performed between the discharge standby position and the discharge position, and the movable body 34 is moved to the mold replacement position when the mold is changed.

In this way, the discharge stroke of the discharge pin 8 can be shortened, and the discharge pin 8 can be prevented from becoming an obstacle when the mold is replaced.

According to the present invention, by providing the molding die 2b and the molding die 3b in the molding die mounting portion 4, the holder 6 and the stopper 7 are operated, and the molding die 2b and the molding die 3b can be fixed to the molding die mounting portion 4 and Since the fixing is released, the molding die 2b and the molding die 3b can be easily fixed to the mold 1 and released in a short time, so that the mold replacement operation time can be shortened.

1‧‧‧Mold

2‧‧‧Fixed side mould

2a‧‧‧Fixed side template

2a-1‧‧‧End face of the fixed side formwork (the side of the fixed side formwork orthogonal to the mold clamping direction) End face)

2b‧‧‧forming mould

2b-1‧‧‧One end of the molding die

2b-2‧‧‧The other end of the molding die

2b-2a‧‧‧The lower part of the other end face of the molding die 2b

2b-3‧‧‧A pair of sides of the mould

3‧‧‧Active side mould

3a‧‧‧active side template

3a-1‧‧‧End face of the movable side template in the direction orthogonal to the clamping direction

3b‧‧‧forming mould

3b-1‧‧‧One end of the molding die

3b-2‧‧‧The other end of the molding die

3b-3‧‧‧A pair of sides of the mould

4‧‧‧Forming part installation department

4a‧‧‧Base surface

4b‧‧‧Departed

4c‧‧‧ One end abutted portion (end abutment portion, end abutment surface)

4d‧‧‧ Side part abutment

6‧‧‧Clamps

6a‧‧‧ Spring

7‧‧‧ brake

8‧‧‧Discharge

9‧‧‧ Pin through hole

20a‧‧‧Mold face

20b‧‧‧Side side of the fixed side template

21‧‧‧Depression

21a‧‧‧ Left recess

21b‧‧‧Right depression

22‧‧‧Lower inserts

22a‧‧‧End face of the lower insert in the left and right direction

22b‧‧‧gate

23‧‧‧ Guide

23a‧‧‧Substrate

23b‧‧‧Bumps

23c‧‧‧ left and right end faces of the guide plates

24‧‧‧Pressing tablets

24a‧‧‧ Guide

24b‧‧‧ Left and right end faces of the pressing piece

25‧‧‧Molding module mounting member

26‧‧‧ Groove

26a‧‧‧Low and shallow portion of the groove at the open end

27‧‧‧through hole

28‧‧‧Flange

30‧‧‧ Space Department

31‧‧‧Next template

32‧‧‧Upper template

33‧‧‧ Connecting rod

34‧‧‧Active body

35‧‧‧ action rod

36‧‧‧through hole

37‧‧‧through hole

38‧‧‧ spacers

50‧‧‧Operating equipment

50a‧‧‧One end of the operating appliance

50b‧‧‧The other end of the operating appliance

51‧‧‧ refers to the hook

52‧‧‧ screws

53‧‧‧ recess

54‧‧‧ Space Department

60‧‧‧One end of the holder in the left and right direction

60a‧‧‧ Upper part of one end of the holder

61‧‧‧The other end of the holder in the left and right direction

62‧‧‧One side of the front and rear of the holder

63‧‧‧The other side of the holder in the front and rear direction

64‧‧‧1

70‧‧‧Support film

71‧‧‧Cards

A‧‧‧ arrow

B‧‧‧ arrow

Fig. 1 is a side view of the mold of the present invention as seen from a direction orthogonal to a mold clamping direction.

Fig. 2 is a front view of the fixed side mold as viewed from the mold clamping direction.

Fig. 3 is a front view of the movable side mold as viewed from the mold clamping direction.

Fig. 4 is a perspective view showing a state in which the mold of the side mold is removed.

Fig. 5 is a cross-sectional view taken along line A-A of Fig. 4;

Figure 6 is a perspective view of the gripper and the brake.

Fig. 7 is a cross-sectional view taken along line B-B of Fig. 4;

Figure 8 is a cross-sectional view of the holder and the brake portion.

Fig. 9 is an explanatory view of the operation of the gripper and the brake portion.

Fig. 10 is an external view of a mold clamping direction in a state in which a mold is attached to a fixed side mold.

Figure 11 is a cross-sectional view taken along line C-C of Figure 10 .

Fig. 12 is a partial enlarged view of Fig. 11;

Fig. 13 is a perspective view showing a state of the detached molding die of the movable side mold.

Fig. 14 is a front view of the movable side mold in a state in which a molding die is attached, as viewed from a mold clamping direction.

Fig. 15 is a sectional view taken along line D-D of Fig. 13;

Fig. 16 is an operation explanatory view of the discharge pin.

Fig. 17 is an operation explanatory view of the discharge pin.

1 is a side view of the mold of the present invention as seen from a direction orthogonal to a mold clamping direction, and the mold 1 of the present invention includes a fixed side mold 2 and a movable side mold 3.

The fixed side mold 2 includes a fixed side die plate 2a and a molding die 2b.

The movable side mold 3 includes a movable side mold 3a and a molding die 3b.

Further, the movable side mold 3 is moved in the mold clamping direction between a mold clamping position indicated by a solid line in FIG. 1 and a mold opening position indicated by a virtual line by a mold clamping cylinder (not shown).

The mold is clamped by moving the movable side mold 3 to the mold clamping position, so that the molding die 2b of the fixed side mold 2 comes into contact with the molding die 3b of the movable side mold 3 to form a cavity (not shown) therebetween. .

The mold is opened by moving the movable side mold 3 to the mold opening position, so that the molding die 2b of the fixed side mold 2 is separated from the molding die 3b of the movable side mold 3, and the molding die 2b is replaced in the mold opening state, Molding die 3b.

In the above embodiment, the fixed side die plate 2a of the fixed side mold 2 is attached to the die casting machine by a die plate (not shown), and the molten metal is filled to a molding die from a nozzle (not shown). A cavity (not shown) between 2b and the molding die 3b.

The fixed side die plate 2a and the movable side die plate 3a respectively include a molding die mounting portion 4.

The molding die 2b of the fixed side die 2 and the molding die 3b of the movable side die 3 are formed by the molding die mounting portion 4 of the template 2a and the template 3a in the orthogonal direction orthogonal to the mold clamping direction. Inserted and extracted for installation and disassembly.

2 is a front view of the fixed side mold 2 as viewed from the mold clamping direction, and FIG. 3 is a front view of the movable side mold as viewed from the mold clamping direction.

The molding die 2b can be detachably attached to the molding die mounting portion 4 of the fixed side die plate 2a, and the molding die 3b can be opposed to the molding die mounting portion 4 of the movable side die plate 3a. Disassembly and assembly.

The molding die 2b and the molding die 3b of the fixed side die 2 and the movable side die 3 are movable in the insertion direction and the extraction direction, and the insertion direction and the extraction direction are orthogonal to the mold clamping direction. direction.

Each of the molding die 2b and the molding die 3b has a rectangular shape surrounded by four faces: an insertion direction in a direction orthogonal to the insertion direction and the extraction direction, an end surface 2b-1 in the extraction direction, and an end surface 3b-1. The other end surface 2b-2 and the other end surface 3b-2, and a pair of side faces 2b-3 and a pair of side faces 3b-3 that face the direction orthogonal to the insertion direction and the extraction direction in the same direction as the insertion direction and the extraction direction. .

Further, the molding die 2b and the molding die 3b are inserted into the molding die mounting portion 4 by moving in the direction (insertion direction) indicated by the arrow a which is orthogonal to the mold clamping direction of the respective template 2a and the template 3a, and One end surface 2b-1 of the molding die 2b, one end surface 3b-1 of the molding die 3b, a pair of side faces 2b-3, and a pair of side faces 3b-3 abut against the molding die attaching portion 4 and are fixed.

By moving the molding die 2b and the molding die 3b attached to the molding die mounting portion 4 in the direction indicated by the arrow b (extraction direction), the molding die 2b and the molding die 3b can be taken out from the molding die mounting portion 4 and detached. .

As described above, the molding die 2b and the molding die 3b can be attached and detached as long as the mold opening state is performed, and the movable side die 3 is moved to the state where the fixed side die 2 is attached to the die casting machine. The mold is opened and the mold is cut, and the mold 2b and the mold 3b can be replaced.

In the embodiment, as shown in FIGS. 2 and 3, the fixed side mold 2 The fixed side template 2a and the movable side template 3a of the movable side mold 3 respectively include a pair of molding die mounting portions 4, and a pair of molding dies 2b and a pair of molding dies 3b are respectively mounted on the respective molding die mounting portions 4, but Since the pair of molding die attaching portions 4, the pair of molding dies 2b, and the pair of molding dies 3b are the same, one molding die attaching portion 4, one molding die 2b, and one molding die 3b will be described.

As shown in Figs. 1 and 2, the molding die attaching portion 4 of the fixed side die 2 includes a base surface 4a, and the back surface of the molding die 2b is slidably attached to the base surface 4a, and supports the molding die 2b at the time of mold clamping. And the abutted portion 4b is provided along the base surface 4a.

The abutted portion 4b is a pair of side portions slidably abutted by the end portion abutting portion 4c abutting on the one end surface 2b-1 of the molding die 2b and the pair of side faces 2b-3 of the molding die 2b. The abutting portion 4d is formed to open the end surface 2a-1 of the fixed side die plate 2a in the direction orthogonal to the mold clamping direction. Word shape.

As shown in FIG. 3, the molding die attaching portion 4 of the movable side die 3 is the same as the molding die attaching portion 4 of the fixed side die 2, and includes a base surface 4a and a rough surface. The abutted portion 4b of the shape of the word is provided along the base surface 4a, and the end surface 3a-1 of the movable side die plate 3a in the direction orthogonal to the mold clamping direction is opened and abutted. The portion 4b is formed by the end abutting surface 4c and the pair of side abutted portions 4d. Word shape.

A holder 6 that abuts against the other end surface 2b-2 of the molding die 2b is attached to the molding die attaching portion 4 of the fixed side die 2.

The gripper 6 is movable between the abutting position and the retracted position, and the The contact position protrudes from the base surface 4a and abuts against the other end surface 2b-2 of the molding die 2b, thereby fixing the molding die 2b to the position of the molding die mounting portion 4 which does not protrude from the base surface 4a. It is not in contact with the other end surface 2b-2 of the molding die 2b, so that the molding die 2b is not fixed to the position of the molding die mounting portion 4.

The holder 6 is supported by the spring 6a to reciprocate in the through hole 27 formed in the base surface 4a, and the spring 6a is extended to cause the holder 6 to protrude from the base surface 4a and be held at the abutment position by The gripper 6 is manually pressed to contract the spring 6a, thereby moving the gripper 6 to the retracted position.

A brake 7 that holds the gripper 6 at the retracted position is attached to the fixed side die plate 2a.

The brake 7 is movable between a holding position in which the holder 6 is held in the retracted position and a holding release position which is released by the spring 6a. The gripper 6 is moved to the position of the abutment position.

For example, the brake 7 is moved between the holding position and the holding release position in a direction orthogonal to the mold clamping direction, that is, in a direction in which the molding die 2b is inserted and withdrawn with respect to the molding die mounting portion 4.

The holder 6 is located on one side of the molding die 2b. The holder 6 can be pressed from the upper direction of the base surface 4a of the fixed side die plate 2a to the retracted position in a state where the molding die 2b is attached to the molding die attaching portion 4.

The stopper 7 protrudes from the end surface 2a-1 of the fixed side die plate 2a toward the insertion direction and the extraction direction of the molding die 2b.

In a state where the molding die 2b is attached to the molding die mounting portion 4, the one end surface 2b-1 of the molding die 2b and the pair of side faces 2b-3 abut against the molding die mounting portion 4 The abutted portion 4b of the shape of the word and the other end surface 2b-2 of the molding die 2b abut against the holder 6, and the four faces of the molding die 2b can be fixed and attached to the fixed side die plate 2a.

Further, by moving the holder 6 to the retracted position, the fixing of the molding die 2b can be released, and the back surface of the molding die 2b can be slid along the base surface 4a, so that the molding die 2b can be attached to the molding die mounting portion. 4, insert and withdraw.

As shown in FIG. 3, a holder 6 is provided on the molding die attaching portion 4 of the movable side mold 3 in the same manner as the holder 6 of the fixed side mold 3, and a brake is provided similarly to the brake 7 of the fixed mold 2. 7.

Next, the operation of attaching and detaching the molding die 2b will be described.

When the molding die 2b is attached to the fixed side die plate 2a, the gripper 6 protruding from the base face 4a is pressed by hand, and the stopper 7 is moved to a holding position for pressing the gripper 6 so that the gripper 6 does not It will protrude from the through hole 27 of the base surface 4a. Thereby, the gripper 6 is pressed by the brake 7, and the gripper 6 is held at the retracted position.

In this state, the hand is released from the holder 6, and the molding die 2b is inserted into the molding die mounting portion 4 so that the one end surface 2b-1 and the pair of side surfaces 2b-3 abut against the molding die mounting portion 4. The end portion abutting portion 4c and the pair of side portions are abutted portions 4d.

In this state, the brake 7 is moved to a hold release position where the gripper 6 is not pressed, whereby the spring 6a is extended to move the gripper 6 to the abutment position, The holder 6 abuts against the other end surface 2b-2 of the molding die 2b, thereby causing the holder 6 to protrude from the through hole 27 of the base surface 4a to fix the molding die 2b to the molding die mounting portion 4, thereby molding The die 2b is mounted to the fixed side die plate 2a.

When the molding die 2b is detached, the gripper 6 is moved to the retracted position by hand pressing, and the stopper 7 is moved to the holding position to hold the gripper 6 in the retracted position, thereby fixing the molding die 2b. Released.

In the state described above, the molding die 2b is taken out from the molding die mounting portion 4 and detached from the fixed side die plate 2a.

The molding die 3b of the movable side mold 3 can also be attached and detached in the same manner.

As described above, the mold 2 and the mold 3 can be fixed to the respective templates 2a and 3a in a short time by simply operating the holder 6 and the brake 7 by hand or a jig or a tool. Fixed so that mold replacement operation time can be shortened.

Next, the molding die attaching portion 4 and the molding die 2b of the fixed mold 2 will be described in detail. In addition, a direction orthogonal to the mold clamping direction is referred to as a left-right direction, and a direction orthogonal to the left-right direction is referred to as a front-back direction.

As shown in FIGS. 4 and 5, the fixed side die plate 2a of the fixed side mold 2 is formed with a recessed portion 21 in the left-right direction on the mold clamping surface 20a.

A lower core block 22 is attached to a central portion of the recessed portion 21 in the left-right direction, and the recessed portion 21 is divided into two in the left-right direction to form a left recessed portion 21a and a right recessed portion 21b.

A guide plate 23 is fitted to each of the left recessed portion 21a and the right recessed portion 21b.

The guide plate 23 is formed by a substrate 23a and a pair of protruding strips 23b integrally formed on both sides in the front-rear direction of the substrate 23a, and has a substantially uniform cross section. In the shape of a plate having a shape of a word, the pressing piece 24 is attached to each of the pair of protruding pieces 23b to form the molding die attaching member 25.

Each of the pressing pieces 24 is extended to the inner side surface of the protruding piece 23b, and a guide groove 24a continuous in the left-right direction is formed by the substrate 23a, the protruding piece 23b, and the pressing piece 24.

The molding die mounting member 25 includes a guide plate 23 and a pressing piece 24.

As shown in FIG. 4, the molding die mounting members 25 are respectively fitted into the left recessed portion 21a and the right recessed portion 21b, and the left and right end faces 23c of the guide plate 23 and the left and right end faces 24b of the pair of pressing pieces 24 and the lower die inserts are respectively inserted. The end surface 22a of the right and left direction of 22 is fixed to each other, whereby the mold mounting member 25 is attached to the main body 20, and the lower mold insert 22 and the mold mounting member 25 are formed into the mold mounting portion 4.

In other words, the surface of the substrate 23a of the guide 23 is the base surface 4a, and the abutted portion 4b is formed by the lower die insert 22 and the pair of pressing pieces 24.

The end surface 22a of the lower mold insert 22 is an end portion abutted portion 4c, and the opposing inner side surface of the pressing piece 24 is a pair of side portion abutted portions 4d.

As shown in FIG. 6, the holder 6 has a prismatic shape of a predetermined height, and includes one end surface 60 in the left-right direction, the other end surface 61, a side surface 62 in the front-rear direction, and the other side surface 63, on one side 62 and the other side. 63 of the height direction side of the package separately A pair of tabs 64 projecting toward the front-rear direction of the holder 6 are protruded.

As shown in FIG. 6, the brake 7 includes a pair of support pieces 70 at one end portion in the left-right direction, and includes a hook portion 71 at the other end portion in the left-right direction, for example, a plate shape including discontinuous circular holes. The pair of support pieces 70 are formed with an opening in the front-rear direction, and penetrate from the upper surface to the lower surface of the brake 7 in the same manner as the hook portion 71.

As shown in FIGS. 7 and 8, a groove 26 into which a pair of projecting pieces 64 of the holder 6 are fitted is formed on the bottom surface of the recessed portion 21 of the fixed side die plate 2a.

A through hole 27 in which the holder 6 is movably fitted is formed on the substrate 23a of the guide 23 so as to penetrate the front surface and the back surface of the substrate 23a (base surface 4a).

Further, as shown in FIGS. 7 and 8, the holder 6 is attached such that the pair of protruding pieces 64 are partially fitted to the recess 26 and movably fitted to the through hole 27 of the substrate 23a, and the spring 6a is elongated. On the other hand, the holder 6 is moved toward the substrate 23a while being held at the abutting position protruding from the surface of the substrate 23a.

The brake 7 is disposed in the recess 26 so that the support piece 70 faces the holder 6, and is movable in the left-right direction along the low-profile portion 26a of the open end of the recess 26 and the back surface of the substrate 23a, and the hook portion 71 The side surface 20b in the left-right direction of the fixed side template 2a is more protruded.

As shown in the right side of Fig. 4 and Fig. 8, the spring 6a is extended to hold the holder 6 at a more abutting position than the base surface 4a.

By pressing the holder 6 against the spring 6a with a hand or a jig or a tool, the holder 6 can be moved so as not to protrude from the base surface 4a and immersed in the through hole as shown in the left side of FIG. 4 and as shown in FIG. 27 retreat position.

When the gripper 6 is in the retracted position, the brake 7 is pressed, and the brake 7 is moved toward the gripper 6, whereby the pair of support pieces 70 enter between the pair of tabs 64 and the substrate 23a, when the slave clip When the holder 6 releases the hand, the tab 64 is in contact with the support piece 70 to hold the holder 6 in the retracted position. That is, the position of the brake 7 at this time is the holding position of the brake 7.

The finger or the jig is hooked on the hook portion 71 to stretch the brake 7 in the state shown in Fig. 9, and as shown in Fig. 8, the support piece 70 is in the holding release position separated from the tab 64 of the holder 6. Thereby, the gripper 6 is moved to the abutment position via the spring 6a.

Further, it is also possible to connect the rope or the like to the brake 7 without using the hook portion 71, and to hold the rope and stretch it.

The lower die insert 22 includes a gate 22b for the molten metal to flow in. The gate 22b is opened on the left and right end faces 22a, respectively, so that the molten metal flows to the left and right molding dies 2b.

As shown in FIG. 4, the molding die 2b includes a flange 28 at each of the back surface faces of the pair of side faces 2b-3.

The molding die 2b is attached by bringing the back surface into contact with the substrate 23a (base surface 4a) and inserting a pair of flanges 28 into the guide grooves 24a.

The operation tool 50 is attached to the molding die 2b, and the operation tool 50 is used to easily insert and extract the molding die 2b with respect to the molding die mounting portion 4.

For example, one end surface 50a of the operating tool 50 including the T-shaped finger hook portion 51 is brought into contact with the other end surface 2b-2 of the molding die 2b, from the other of the operating tool 50 The end surface 50b is screwed to the molding die 2b by screwing the bolt 52, and the finger is hooked on the finger hook portion 51, and the molding die 2b is pressed or stretched in the left-right direction of the molding die mounting portion 4. The molding die 2b can also be pressed or stretched by a jig without a finger.

When the molding die 2b to which the operating tool 50 is attached is attached to the molding die mounting portion 4, as shown in FIG. 10, the operating tool 50 is placed on the holder 6, and the holder 6 abuts against the molding die 2b. At the end face 2b-2, the operating tool 50 becomes an obstacle.

Therefore, as shown in FIG. 11, on the back surface of the operating tool 50, a concave portion 53 is formed to open on one end surface 50a of the operating tool 50, and the size of the concave portion 53 in the front-rear direction is larger than the front and rear dimensions of the holder 6, A space portion 54 into which the holder 6 can be inserted is formed between the other end surface 2b-2 of the molding die 2b and one end surface 50a of the operating tool 50.

By the manner as described above, when the holder 6 is moved to the abutting position in a state where the molding die 2b is mounted on the molding die mounting portion 4, the holder 6 enters into the space portion 54, and the holder The upper portion 60a of one end surface 60 of 6 abuts against the lower portion 2b-2a of the other end surface 2b-2 of the molding die 2b.

The lower portion 2b-2a of the other end surface 2b-2 of the molding die 2b and the upper portion 60a of the one end surface 60 of the holder 6, that is, the portions abutting each other respectively include an inclined surface, and the holder 6 is surely abutted The other end surface 2b-2 of the molding die 2b allows the molding die 2b to be firmly fixed in the left-right direction by the lower die insert 22 and the holder 6 (see Fig. 12).

Next, the movable side mold 3 will be described.

As shown in FIGS. 13 and 14, the movable side mold 3 is the same as the fixed side mold 2, and the movable side mold 3a is below the mold insert 22 and includes left and right molding molds. In the portion 4, the molding die attaching portion 4 includes a base surface 4a and a contacted portion 4b provided on the base surface 4a, which is the same as the molding die attaching portion 4 of the fixed side die 2.

The gripper 6 and the brake 7 are the same as the gripper 6 and the brake 7 of the fixed side mold 2.

The molding die 3b is the same as the molding die 2b of the fixed side die 2, and the operating tool 50 is attached.

A molded article discharge device that discharges a molded article from a cavity is attached to the movable mold 3.

As shown in FIG. 13, the molded product discharge device includes a discharge pin 8 which is provided on the movable side die plate 3a and protrudes from the base surface 4a of the molding die mounting portion 4, and the discharge pin 8 is passed through the molding die. The pin insertion hole 9 of the surface and the back surface of 3b protrudes from the discharge position of the surface of the molding die 3b, and the molded article is discharged.

At the time of the molding operation, the discharge pin 8 is placed at a discharge standby position that does not protrude from the surface of the molding die 3b and is immersed in the pin insertion hole 9.

At the time of changing the mold, the discharge pin 8 is placed at a mold replacement position that does not protrude from the base surface 4a of the molding die mounting portion 4.

Next, a configuration in which the discharge pin 8 is moved to each position will be described. In addition, the direction in which the discharge pin 8 moves is shown in the up-down direction.

As shown in FIG. 15, the movable side die plate 3a of the movable side mold 3 includes the space part 30 in the up-down direction.

For example, the lower template 31 and the upper template 32 are vertically separated and connected by the connecting rod 33 to form the movable side template 3a, and the lower template 31 and the upper template. A space portion 30 in the vertical direction is formed between 32.

In the space portion 30, the movable body 34 is movably attached to the lower position, the intermediate position, and the upper position in the vertical direction along the connecting rod 33, so that the actuating rod 35 attached to the movable body 34 is lower. The template 31 protrudes downward and moves the action lever 35 in the vertical direction by a cylinder (not shown).

A through hole that reciprocates in the vertical direction of the action lever 35 is provided in the lower die plate 31.

The discharge pin 8 is attached to the movable body 34, and the discharge pin 8 is inserted into the through hole 36 of the upper die plate 32 and the through hole 37 of the guide plate 23 to protrude to the upper surface of the guide plate 23, that is, the molding die mounting portion 4 The base surface 4a protrudes upward or falls below.

When the mold is changed, as shown in Fig. 15, the movable body 34 is placed at a lower position in contact with the upper surface of the lower die plate 31, so that the discharge pin 8 is placed in a mold which is further downward than the base surface 4a of the molding die mounting portion 4. Replace the location.

Thereby, when the movable molding die 3b is moved along the base surface 4a, it does not collide with the discharge pin 8, and the discharge pin 8 does not become an obstacle when the mold is changed.

In the molding operation, as shown in Fig. 16, the movable body 34 is placed at an intermediate position separated from the upper surface of the lower die plate 31, so that the discharge pin 8 is inserted into the pin insertion hole 9 of the molding die 3b and is not from the molding die 3b. The surface of the surface is highlighted and immersed in the discharge standby position.

At this time, a spacer 38 is interposed between the upper surface of the lower die plate 31 and the lower surface of the movable body 34, so that the movable body 34 is held at the intermediate position.

When the molded article is discharged, as shown in FIG. 17, the movable body 34 is moved to and from the upper side. The discharge pin 8 is moved to a discharge position protruding from the surface of the molding die 3b until the lower surface of the die plate 32 is in contact with the upper surface, and the molded article in the cavity is pressed and discharged.

As described above, the discharge pin 8 can be moved from the discharge standby position that has entered the pin insertion hole 9 of the molding die 3b to the discharge position protruding from the surface of the molding die 3b during the molding operation, thereby shortening The discharge operation stroke of the discharge pin 8.

Further, by placing the movable body 34 at a lower position in contact with the upper surface of the lower die plate 31, the discharge pin 8 is placed at a mold replacement position that is lower than the base surface 4a of the molded body mounting portion 4, and thus The discharge pin 8 does not become an obstacle when the mold is replaced.

That is, when the movable body 34 is moved between the lower position shown in FIG. 15 and the upper position shown in FIG. 17 and the molded product is discharged, the discharge operation stroke of the discharge pin 8 is extended, so that in the molding operation in the present invention The movable body 34 is held at the intermediate position, thereby shortening the discharge operation stroke of the discharge pin 8.

In the embodiment, the illustration of the concave portion of the cavity forming the surface of the molding die 2b and the molding die 3b is omitted. The molten metal or resin of a high temperature flows from the gate 22b of the lower mold insert 22 to the cavity.

In the above embodiment, the two molding die attaching portions 4 are provided on the fixed side die plate 2a and the movable side die plate 3a. However, one molding die attaching portion 4 may be provided.

The abutted portion 4b of the molding die attaching portion 4 is formed by the three abutted portions that are continuous in a straight line shape as Although the shape is a word, each of the abutted portions or any of the abutted portions may be discontinuous.

For example, the end portion abutted portion 4c is constituted by a plurality of pins or projections, and the pair of side portions abutted portions 4d are formed in a continuous shape.

In the above-described embodiment, since each of the template 2a, the template 3a, and the molding die attaching member 25 is made of a different member, a molding die having a different size can be attached by replacing the molding die attaching member 25.

Further, each of the template 2a, the template 3a, and the molding die attaching member 25 may be integrally formed.

In the above-described embodiment, the molding die 2b and the molding die 3b are moved in the direction orthogonal to the mold clamping direction, and are attached to or detached from the molding die mounting portion 4, but may be formed as a molding die. 2b, the molding die 3b is moved in the mold clamping direction and attached to or detached from the molding die mounting portion 4.

In the above embodiment, both the molding die 2b of the fixed side die 2 and the molding die 3b of the movable side die 3 are replaced. However, it is also possible to replace only one of the molding die.

2‧‧‧Fixed side mould

2a‧‧‧Fixed side template

2a-1‧‧‧End face of the fixed side formwork (end face of the fixed side formwork in the direction orthogonal to the mold clamping direction)

2b‧‧‧forming mould

2b-1‧‧‧One end of the molding die

2b-2‧‧‧The other end of the molding die

2b-3‧‧‧A pair of sides of the mould

4‧‧‧Forming part installation department

4a‧‧‧Base surface

4b‧‧‧Departed

4c‧‧‧ One end abutted portion (end abutment portion, end abutment surface)

4d‧‧‧ Side part abutment

6‧‧‧Clamps

6a‧‧‧ Spring

7‧‧‧ brake

A‧‧‧ arrow

B‧‧‧ arrow

Claims (6)

A mold, replaceably mounted with a molding die (2b, 3b) including a cavity, the mold being characterized in that the mold (1) comprises: a molding die mounting portion (4) for mounting a molding die (2b) And 3b); and a holder (6) for fixing the molding die (2b, 3b) to the molding die mounting portion (4); and the holder (6) fixing the molding die (2b, 3b) to The position of the molding die mounting portion (4) is movable between a position where the molding die (2b, 3b) is not fixed to the molding die mounting portion (4), and the movable mold is provided on the mold (1). The gripper (6) performs a brake (7) for holding and releasing the brake, and the brake (7) is mounted to be movable between a holding release position and a holding position, and the holding release position is a pair of forming molds ( 2b, 3b) a position at which the holding of the holder (6) fixed at a position of the molding die mounting portion (4) is released, the holding position being such that the molding die (2b, 3b) is not fixed to the molding a position at which the mold mounting portion (4) holds the holder (6), the molding die mounting portion (4) includes: a base surface (4a) that is in contact with the molding die (2b, 3b); And arrived The connecting portion (4b) is disposed on the base surface (4a) for abutting around the molding die (2b, 3b), and the holder (6) is movable between the abutting position and the retracted position. The abutting position is a portion that protrudes from the base surface (4a) and abuts against the periphery of the molding die (2b, 3b), thereby fixing the molding die (2b, 3b) to the molding die mounting portion (4) The position of the retreat is a position where the molding die (2b, 3b) is not fixed to the molding die mounting portion (4) from the base surface (4a), and the stopper (7) causes the holder (6) Holding in the retracted position, a through hole (27) is formed in the base surface (4a) of the molding die mounting portion (4), and the holder (6) reciprocates in the through hole (27). A tab (64) is disposed on the holder (6), and the brake (7) includes a support piece (70) that is in contact with an upper surface of the tab (64) of the holder (6) in the retracted position, The brake (7) is moved between a holding position in which the support piece (70) is in contact with a tab (64) of the holder (6) and a holder ( 6) Position maintained at the retracted position, which is a position at which the support piece (70) is separated from the tab (64) to release the holding of the holder (6) at the retracted position. The mold according to claim 1, wherein: the molding die (2b, 3b) is in contact with and moves with the base surface (4a), and the periphery of the molding die (2b, 3b) includes a molding die. (2b, 3b) one end surface at both ends in the moving direction, the other end surface, and a pair of side surfaces on both sides in the direction orthogonal to the moving direction, the abutted portion (4b) of the molding die mounting portion (4) includes molding One end of the die (2b, 3b) abuts against the abutting portion (4c) and a pair of side abutting portions (4d) abutting against a pair of side faces of the molding die, the holder ( 6) Set to abut against the other end surface of the molding die (2b, 3b). For example, the mold described in claim 2, wherein: The abutting portions of the abutting portions of the molding dies (2b, 3b) and the holder (6) are respectively inclined surfaces that face the moving direction of the molding dies (2b, 3b). The mold according to any one of claims 1 to 3, wherein: the holder (6) is formed on the base surface (4a) of the molding die mounting portion (4) The through hole (27) reciprocates, the spring (6a) is elongated to move the holder (6) to an abutment position protruding from the base surface (4a), and by the spring (6a) The contraction causes the gripper (6) to move to a retracted position that is immersed from the base surface (4a). The mold according to any one of claims 1 to 3, wherein the mold (1) comprises a fixed side mold (2) and a movable side mold (3), the fixed side mold (2) comprising a replaceable molding die (2b), a molding die mounting portion (4) for mounting the molding die (2b), a holder (6), a brake (7), and the movable side die (3) including a replaceable molding die (3b), a molding die mounting portion (4) for mounting the molding die (3b), a holder (6), and a stopper (7). The mold according to claim 5, wherein in the movable side mold (3) of the mold (1), the discharge containing the molded product discharged from the molding die (3b) of the movable side mold (3) is included. a movable body (34) of the pin (8), and a pin insertion hole (9) penetrating the molding die (3b) provided on the molding die (3b), the movable body (34) being movable to discharge of the molded article a position, a discharge standby position, and a mold replacement position, wherein the discharge position of the molded product is a position at which the discharge pin (8) protrudes from the pin insertion hole (9) of the molding die (3b), and the discharge standby position is a discharge pin ( 8) immersed in the position of the pin insertion hole (9), the mold replacement position is discharged When the pin (8) is immersed from the base surface (4a) of the molding die attaching portion (4), the moving body (34) is moved between the discharge standby position and the discharge position during the molding operation and when the mold is changed. Move to the mold change position.