JPH077910U - Equipment for taking out molded products from the press mold - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a take-out device for taking out a molded article existing in a lower die of a forming die to the outside by reversing the lower die in the vertical direction. [Structure] A support base 32 rotatably supported on a machine base in a horizontal direction, an elevating member 33 movably mounted on the support base 32 in a vertical direction, and a rotary shaft rotatably supported by the elevating member 33. The arms 34a and 34b fixed to the armature 34 are projected horizontally and engage the lower die 12 of the press mold 10 to hold the lower die 12, and the supporting base 32 is rotated in the horizontal direction. Third driving means for rotating the rotating shaft 34 by rotating the lower mold 12 held by the engaging rods 35a, 35b. 38,
The lower die 12 was turned upside down and the molded product in the lower die 12 was taken out.

Description

[Detailed description of the device]

The present invention relates to a device for taking out a molded product from a press mold.

[0002]

[Industrial applications]

[0003]

[Prior art]

 Oni tiles have a more complicated outer shape than ordinary tiles, and are often large and heavy. For this reason, in a conventional press mold, a cylindrical lower mold having a molding surface on the inner peripheral surface and a lower molding surface having a molding surface on the upper surface are slidably fitted in the lower mold. A saucer-shaped core mold that forms the bottom of the mold, and a molding surface corresponding to the molding surface of the lower mold and the core mold on the outer peripheral surface and the tip surface. It also consists of three molds, an upper mold for compression molding the ogre roof, and a core mold in the lower mold that is pushed up from below and is positioned above the core mold in the lower mold. The product is designed to be taken out.

As shown in FIG. 7, the molding die is composed of a lower die 1, a core die 2 and an upper die 3. The lower mold 1 has a cylindrical shape, and the inner peripheral surface thereof is formed on the molding surface 1 a, and is fixed to the upper surface of the lower mold base 4. Further, the core mold 2 has a saucer shape and an upper surface thereof is formed as a molding surface 2a. The core mold 2 is fitted in the lower mold 1 so as to be slidable in the vertical direction, and the bottom part thereof is formed in the lower mold 1. Are configured. The upper die 3 has a large projection shape, and the entire outer peripheral surface and the front end surface thereof are formed on the molding surfaces 3a corresponding to the respective molding surfaces 1a and 2a of the lower die 1 and the core die 2.

In the mold, the upper mold 3 is fitted in the lower mold 1 to compression-mold the waste material, which is the raw material of the molded product arranged in the lower mold 1. When fitted in the lower mold 1, a predetermined space is secured between the molding surfaces 1a, 2a, 3a facing each other, and the waste is compression molded within this space to form a molded product. Becomes This molded product is located on the core mold 2 when the upper mold 3 is retracted upward. By pushing the core mold 2 from below with the knockout pin 5, the lower mold is integrated with the core mold 2. The molded product on the core mold 2 is taken out from the inside of the mold 1 to the outside, and then the worker lifts and conveys the molded product.

[0006]

[Problems to be solved by the device]

 By the way, in the molding die, since the core die 2 is configured to slide on the molding surface 1a of the lower die 1 inside the lower die 1, the core surface 2 and the molding surface 1a of the lower die 1 slide on the molding surface 1a. The outer peripheral surface of the core mold 2 coming into contact with it is worn, and a gap is generated between these two surfaces. For this reason, part of the waste material, which is the raw material of the molded product, enters this gap during molding, which causes burrs on the outer periphery of the molded product. When burrs are generated on a molded product, it is necessary to finish the molded product with deburring work, which requires time and labor to greatly reduce the productivity. If the shape is perfect, the finishing process itself will not be easy. Further, the molding surface 1a of the lower mold 1 is quickly worn and damaged by a part of the rough land that has entered the gap, so that a large repair of the molding mold is required. In addition, transportation of molded products by workers requires a great deal of labor, so transportation work is extremely heavy work.

In order to prevent abrasion damage on the molding surface of the molding die and generation of burrs in the molded product, the molding die may be configured without the core die. Also, in order to take out a molded product from a lower mold without a core mold, the lower mold may be turned upside down, and if such a take-out means is adopted, a worker can The transportation work can be eliminated. Therefore, an object of the present invention is to provide a suitable take-out device for reversing the lower mold of the press mold in the vertical direction and taking out a molded product from the lower mold.

[0008]

[Means for Solving the Problems]

 The present invention is a device for taking out a molded product from a press mold, and the taking-out device is mounted on a supporting base rotatably in a horizontal direction on a machine base and vertically movable on the supporting base. Engagement that holds the lower die by being provided on an arm that is fixed to a rotating shaft that is rotatably supported by the elevating member and that protrudes to the side and engages the lower die of the press mold. A rod, a first driving means for horizontally rotating the support base, a second driving means for vertically moving the elevating member, and a second driving means for rotating the rotation shaft and held by the engagement rod. It is characterized in that the lower mold is provided with a third driving means for reversing in the vertical direction, and the lower mold is reversed in the vertical direction to take out a molded product in the lower mold.

[0009]

[Operation and effect of the device]

 In the take-out device having such a structure, the lower die for accommodating the molded product carried out from the press-forming device after the press-forming can be held by the engaging rod, and in this state, the elevating member is actuated by the action of the second drive means. The lower die that holds the molded product is lifted from the unloading table by raising. Therefore, in this state, by rotating the support table in the horizontal direction by the action of the first drive means, the lower mold for containing the molded product can be positioned on the transfer table. After the elevating member is moved down by the action of the means, the lower die is turned upside down by the action of the third driving means, and the molded product in the lower die is taken out on the carrier.

Therefore, if the take-out device is used, it is possible to use a molding die that does not cause wear damage of the molding die itself or a burr of a molded product, that is, a molding die that does not include a core die. It is possible and does not require the operator to take out the molded product from the lower mold of the mold. In other words, it becomes possible to automatically take out the molded product in the lower mold and carry it.

[0011]

【Example】

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A molded product take-out device according to an embodiment of the present invention will be described below with reference to the drawings. A take-out device 30 according to the present invention is shown in FIGS. The take-out device 30 is for taking out a molded product from the molding die 10 shown in FIG. 6, and the molding die 10 is used for the press molding device 20 shown in FIG. As shown in FIG. 4, the take-out device 30 is arranged between a later-described support base 25 of the press molding device 20 and a conveyor belt C for transportation, and is placed on a moving base 26 on the support base 25. It functions to take out the molded product A in the lower mold 13 of the molding die 10 that is carried out and carried out.

As shown in FIGS. 4 and 6, the molding die 10 is composed of an upper die 11, a lower die 12, and a lower die stand 13. The upper die 11 has a large protrusion shape, and an outer peripheral surface 11a and a tip end surface 11b of the protrusion protruding downward are formed on the molding surface. The lower die 12 has a bottomed cylindrical shape, and the inner peripheral surface 12a and the bottom surface 12b thereof are formed on the molding surface. The forming surface of each surface 11a, 11b of the upper die 11 and the molding surface of each surface 12a, 12b of the lower die 12 correspond to each other, and when the upper die 11 is fitted in the lower die 12, A space having a predetermined width is formed between both molding surfaces, and the rough land is compression-molded within the space so as to be a molded product. The upper die 11 has a pair of guide pins 11c on both left and right sides, and the lower die 12 has guide holes 12c at portions corresponding to these guide pins 11c. The lower mold base 13 is in the shape of a saucer, and engaging holes 13a are formed at two front and rear positions on both left and right sides. The lower die 12 is fastened and fixed by the outward flange portion 13b at the upper edge of the lower die base 13.

As shown in FIG. 4, the press-molding apparatus 20 includes sliders 23 that are vertically slidably attached to respective guide columns 22 that are erected on a machine base 21, and are molded on the lower surface of the slider 23. The upper mold 11 of the mold 10 can be assembled. Therefore, the upper die 11 can be moved forward and backward by a predetermined amount by the action of the hydraulic cylinder 24 connected to the slider 23. Further, on the machine base 21, a support base 25 extending horizontally below the slider 23 is arranged. As shown in FIG. 5, a pair of left and right rails 25a and 25b are provided on the support table 25, and a moving table 26 is assembled on the rails 25a and 25b. The moving table 26 is moved by the action of the hydraulic cylinder 27, and the lower die 12 and the lower die table 13 integrated therewith are placed on the moving table 26.

The lower die 12 on the moving table 26 and the lower die table 13 integrated therewith are engaged with the moving table 26 in the moving direction, and are placed so as to be detachable in the vertical direction. . Therefore, the moving base 26 moves with the lower mold 12 and the lower mold base 13 integrated with the lower mold 12 placed thereon, and the lower mold 12 is positioned below the upper mold 11 of the press molding apparatus 20 as necessary, The raw material, which is the raw material, housed in the lower mold 12 is compression-molded together with the upper mold 11, and then the lower mold 12 is moved to the tip of the support table 25. A take-out device 30 is arranged on the front end side of the support base 25.

As shown in FIGS. 1 to 3, the take-out device 30 includes a support base 32 rotatably supported on a machine base 31 and a pair of guide columns 32 a and 32 b standing on the support base 32. An elevating member 33 assembled so as to be movable in the vertical direction, and a pair of engaging rods 35a protruding from the arms 34a, 34b fixed to both ends of a rotary shaft 34 rotatably supported by the elevating member 33. 35b, and first, second and third driving means 36, 37, 38. Each of the arms 34a and 34b is of a low isosceles triangle shape and is fixed to the rotary shaft 34 at the center of the top thereof, and engaging rods 35a and 35b are provided at the corners on both sides. The engagement rods 35a and 35b project toward the support base 25 side and the conveyor belt C side, respectively, and are removably inserted into the engagement holes 13a of the lower die base 13 on the moving base 26.

The first drive means 36 is composed of a drive motor 36 a provided on the machine base 31, a large diameter gear 36 b and a small diameter gear 36 c provided on the outer periphery of the support base 32, and the small diameter gear 36 c is the motor 36 a. And is meshed with the large-diameter gear 36b. Therefore, the first drive means 36 drives the motor 36a to rotate the support base 32 in the horizontal direction.

The second drive means 37 is composed of a drive motor 37a, a first sprocket 37b, a second sprocket 37c, a drive chain 37d, a connecting chain 37e, and a weight 37f. The motor 37a is disposed on a support bracket 32c provided on the upper ends of the guide columns 32a and 32b, the first sprocket 37b is provided on the end of the drive shaft of the motor 37a, and the support bracket 32c is rotatable. A second sprocket 37c is provided at the end of the rotatably supported rotating shaft 37g. The drive chain 37d is suspended on both sprockets 37b and 37c, and the second sprocket 37c is rotationally driven by driving the motor 37a. The connecting chain 37e is connected to the elevating member 33 and the weight 37f via the third sprocket 37h provided at the end of the rotating shaft 37g and the fourth sprocket 37i rotatably supported by the support bracket 32c, and is moved up and down. The member 33 is stopped at a predetermined position by the action of the weight 37f, and is moved in the vertical direction by driving the motor 37a.

The third drive means 38 is composed of a drive motor 38a, a small diameter gear 38b, and a large diameter gear 38c. The motor 38a is disposed below the elevating member 33, and a small diameter gear 38b is provided at the end of the drive shaft of the motor 38a. The large diameter gear 38c is integrally rotatably provided at the end of the rotary shaft 34, and meshes with the small diameter gear 38b. The large-diameter gear 38c has a substantially semi-circular shape, and the forward and reverse rotation of the motor 38a causes forward and reverse rotation of about 180 degrees to reverse both arms 34a and 34b in the vertical direction.

Among the driving means 36 to 38, in the first driving means 36, the support base 32 is rotated forward and backward by approximately 180 degrees, and the protruding direction of the engagement rods 35a and 35b is the support base 25 side. Selectively change to the conveyor belt C side. Further, in the second driving means 37, the elevating member 33 is moved in the vertical direction, and the respective engaging rods 35a, 35b are at the bottom dead center at the position shown by the solid line in FIG. The position indicated by the chain line is the top dead center. In the third drive means 38, both arms 34a, 34b are rotated 180 degrees forward and backward from the horizontal state to be inverted in the vertical direction and then returned.

In the take-out device 30 configured as described above, for example, the engaging rod 35a projects toward the support base 25 side, and the engaging rod 35b projects toward the conveyor belt C side. In such a state, after the compression molding is completed by the press molding device 20, the lower die 12 and the lower die base 13 integrated with the lower die 12 are placed on the moving base 26, and the tip of the support base 25 is operated by the action of the hydraulic cylinder 27. When moved to the position, the engagement rod 35a fits into each engagement hole 13a of the lower mold base 13 and holds the lower mold 12 and the lower mold base 13. When the second motor 37a is driven in this state, the lower die base 13 on the movable base 26 which is engaged with and retained by the engagement rod 35a and the lower die 12 integrated therewith are moved upward by a predetermined amount. The first motor 36a drives it to rotate 180 degrees to move it onto the conveyor belt C, the second motor 37a drives it downwards, and the third motor 38a drives it to reverse upwards and downwards. In this inverted state, the second motor 37a is driven to move the lower mold base 13 and the lower mold 12 integral therewith, and the molded product A in the lower mold 12 is taken out onto the conveyor belt C.

After that, the lower mold base 13 and the lower mold 12 integrated with the lower mold base 13 are vertically inverted by driving the third motor 38a, and are moved downward by driving the second motor 37a. In this state, the lower mold 12 is opened upward, and the waste land B, which is a raw material for molding, is accommodated in the lower mold 12. In this state, the other engagement rod 35b projects toward the support base 25 side, and is moved to the tip of the support base 25 while being mounted on the moving base 26 after the compression molding by the press molding device 20. The mold base 13 and the lower mold 12 integrated with the mold base 13 are held.

Therefore, in this state, the lower die 12 which is held by the one engaging rod 35a and accommodates the waste land B and the lower die base 13 which is integrated with the lower die 12 are held by the other engaging rod 35b. The lower mold 12 for accommodating the molded product and the lower mold base 13 integrated therewith are moved upward by the drive of the second motor 37a and rotated 180 degrees in the horizontal direction by the drive of the third motor 38a. As a result, the lower mold 12 accommodating the wasteland B and the lower mold base 13 integrated therewith are positioned on the moving base 26 on the support base 25, and the lower mold 12 and the lower mold base 13 accommodating the molded product A are Located on the conveyor belt C.

In this state, when the elevating member 33 is lowered by driving the second motor 37a, the lower mold 12 for accommodating the waste land B and the lower mold base 13 integrated with the lower mold 12 are placed on the moving base 26 and moved. The lower die 12 and the lower die base 13 on the base 26 are conveyed to the press molding apparatus 20 side by the operation of the hydraulic cylinder 27. On the other hand, the lower mold 12 and the lower mold base 13 accommodating the molded product A are inverted in the vertical direction by driving the third motor 38a, and the molded product A in the lower mold 12 is taken out onto the conveyor belt C.

As described above, if the take-out device 30 is adopted, the forming die 10 without the core die can be used, and the lower die 12 is in sliding contact with the inner peripheral surface 12a which is the forming surface of the same die. There is no mold, no gap is generated due to wear of the molding surface, and there is no possibility that a part of the waste land B, which is the raw material of the molded product A, enters the above-mentioned gap during molding. Therefore, burrs do not occur on the molded product A, and wear damage on the molding surface is prevented. Also, early damage to the molding surface of the molding die 10 is prevented. Further, if the take-out device 30 is adopted, the molded product A in the lower mold 12 carried out from the press molding device 20 can be automatically taken out and conveyed, and the molded product A from the lower mold 12 can be transferred. There is no need for the operator to take out the work.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a take-out device according to an embodiment of the present invention.

FIG. 2 is a partial vertical front view of the take-out device.

FIG. 3 is a cross-sectional plan view taken along the line 3-3 of FIG. 2 in the take-out device.

FIG. 4 is a process drawing of press molding showing an arrangement state of the takeout device.

FIG. 5 is a vertical cross-sectional front view showing a support base and a movable base included in the press molding apparatus.

FIG. 6 is a vertical cross-sectional front view of a lower mold of a mold used when the take-out device is adopted and a lower mold stand integrated with the lower mold.

FIG. 7 is a vertical sectional front view of a lower mold of a conventional molding die and a lower mold base integrated with the lower mold.

[Explanation of symbols]

10 ... Mold, 11 ... Upper mold, 12 ... Lower mold, 13 ... Lower mold base, 13a ... Engagement hole, 20 ... Press molding device, 25 ... Supporting base, 26 ... Moving base, 30 ... Extracting device, 31 ... Machine stand, 3
2 ... Support base, 33 ... Elevating member, 34a, 34b ... Arm, 35a, 35b ... Engaging rod, 36 ... First driving means, 37 ... Second driving means, 38 ... Third driving means.

Claims (1)

[Scope of utility model registration request] 1. A support base rotatably supported in a horizontal direction on a machine base, an elevating member movably mounted in the support base in a vertical direction, and rotatably supported by the elevating member. An engaging rod provided on an arm fixed to the rotating shaft, protruding laterally, and engaging with a lower mold of a press mold to hold the lower mold,
First drive means for rotating the support base in the horizontal direction,
The lower mold is provided with a second drive unit that raises and lowers the elevating member and a third drive unit that rotates the rotation shaft to vertically reverse the lower mold held by the engagement rod. A device for taking out a molded product from a press-molding die, which is turned upside down to take out a molded product in the lower mold.