JP2007030218A - Press device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a press device capable of enhancing the maintenance properties of a mold. <P>SOLUTION: A tiltable support 22 is fixed on the support stand 21 of a pressurizing press device 2 in an immovable manner and a tiltable support 23 is attached to the tiltable support 22 so as to be relatively movable in a horizontal direction. A core mold MM and a cavity mold FM are held to mold holders 26 and 27 and respectively attached to the tiltable supports 22 and 23 in a revolvable manner so that the upper end parts of them are tilted in a mutually separated direction. By this constitution, both of the molds MM and FM can be opened and closed by moving the tiltable support 23 and the mold mating surfaces of them can be turned upward by revolving the mold holders 26 and 27. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a press apparatus capable of checking the matching condition of male and female molds.

A mold for resin molding has to be reversed to repair the corresponding portion, and there has been a conventional technique related to a mold reversing device for this purpose (see, for example, Patent Document 1). In this conventional mold reversing device, a sprocket is rotated with a mold placed on a rotary mounting table having a substantially L-shaped support, and a plurality of pins attached to the outer peripheral edge of the rotary mounting table are used. Then, the rotary mounting table is rotated, and the mold on the rotating mounting table is inverted 90 degrees.
By using this conventional mold reversing device, there is no need to lift the mold with a wire or the like and reverse it as before, so the reversing workability can be improved and the mold can be safely and quickly. Can be reversed.
Registered Utility Model No. 3001251 (FIGS. 1 and 2)

  Usually, the male and female molds have to be matched with each other, and after checking the condition of both mating surfaces, it has been necessary to correct them based on the results. That is, after opening the pair of molds in the closed mold state, it is necessary to invert them so that both mating surfaces face upward. However, the above-described conventional mold reversing device is for reversing a pair of molds in a closed mold state, and does not meet such a need. The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a press apparatus capable of improving the maintainability of a mold.

  As means for achieving the above object, the invention of claim 1 is characterized in that a pair of mold holders for holding male and female molds and the mold holders are moved relative to each other in a substantially horizontal direction to open and close the male and female molds. The mold slide mechanism and the pair of mold holders attached to each other, and by rotating the mold holders in directions in which the upper ends thereof are separated from each other, the mating surfaces of the male and female molds in the open state are moved upward. A pressing device characterized by including a turning mechanism to be directed.

  According to a second aspect of the present invention, the mold holder is rotatably supported by the rotation holding portion, and a locking portion is provided between one of the mold holder and the rotation holding portion. And a latch receiving portion engageable with the latch portion is formed on the other side, and the latch portion is brought into a protruding position before the mold holder is rotated. By moving, the mold holder is fixed to the rotation holding portion by engaging with the lock receiving portion, and when the lock portion moves to the retracted position, the engagement with the lock receiving portion is 2. The press apparatus according to claim 1, wherein the press holder is released and allows the mold holder to rotate relative to the rotation holding portion.

<Invention of Claim 1>
A pair of mold holders for holding the male and female molds respectively, a mold slide mechanism for opening and closing the male and female molds by moving the mold holders relative to each other in a substantially horizontal direction, and a pair of mold holders. By turning the upper end part in a direction away from each other, and by providing a turning mechanism that turns the mating surface of the male and female molds in the open state upward, the mold sliding mechanism is operated to mold the male and female molds. After that, the rotating mechanism can be operated to check the condition of the mating surfaces of both molds, so that it is easy to perform mold repair work and improve the maintainability. Can do.

<Invention of Claim 2>
The mold holder is rotatably supported by the rotation holding portion, and an operating device is provided on one side of the mold holder and the rotation holding portion so that the locking portion can move between the protruding position and the retracted position. In addition, a lock receiving portion that can be engaged with the lock portion is formed on the other side, and the lock portion is engaged with the lock receiving portion by moving to the protruding position before the mold holder rotates. The mold holder can be fixed to the rotation holding part, and the orientation and position of the male and female molds can be fixed accurately and firmly at the time of mold matching. It can be repaired with high accuracy.

  An embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the press system 1 according to the present embodiment includes a 10-ton pressure press device 2 (corresponding to the press device of the present invention) and a 300-ton pressure press device 4. .

  A pair of tilt supports 22 and 23 (corresponding to the rotation holding portion of the present invention) are attached on the support base 21 of the pressure press device 2. The fixed-side tilt support body 22 is attached to the support base 21 so as not to move, while the mobile-side tilt support body 23 is attached to a pair of slide rails 211 extending in the length direction on the support base 21. 2 is engaged so as to be movable in the vertical direction. A slide cylinder 24 is interposed between the tilt supports 22 and 23 (shown in FIG. 4), and the moving side tilt support 23 is moved relative to the fixed side tilt support 22 in the horizontal direction.

  The slide cylinder 24 is formed by a hydraulic cylinder or a pneumatic cylinder, and constitutes the mold slide mechanism of the present invention together with the moving side tilt support 23. A magnet scale 25 is fixed to the end portion of the support base 21, and a sensor rod 251 connected to the moving side tilt support 23 is inserted into the magnet scale 25. As the movement-side tilt support 23 moves, the sensor rod 251 moves relative to the magnet scale 25 to detect the amount of movement of the movement-side tilt support 23.

  Mold holders 26 and 27 are mounted on the tilt supports 22 and 23, respectively. A die holder 27 attached to the tilt support 23 extends in the vertical direction, and a roller support portion 272 is provided at the lower end of the wall portion 271 that comes into contact with the back surface of a mold die FM that is a female die for injection molding. It is attached so that it may extend toward, and the side surface is substantially L-shaped. A pair of tilt guide portions 231 is erected on the side surface of the tilt support 23, and the mold holder 27 is attached to the tilt guide portion 231 so as to be rotatable around the lower end portion of the wall portion 271. .

  A plurality of cylindrical rollers 273 are arranged in the width direction on the roller support portion 272, and are respectively rotatably attached. The roller 273 is mounted such that the upper portion of the outer peripheral surface slightly protrudes from the upper surface of the roller support portion 272, and the mold type FM is placed thereon. Each roller 273 is driven by an electric motor (not shown) attached below the roller support portion 272. By rotating the roller 273, the mold type FM can be moved in the width direction (left and right direction in FIG. 1) on the roller support portion 272.

  A pair of positioning cylinders 28 are attached to the upper end of the wall portion 271. The positioning cylinder 28 is formed by a hydraulic cylinder or a pneumatic cylinder, and when operated, the lower end engaging portion 281 (shown in FIG. 4) descends to a forward position, engages with a fixing hole on the upper surface of the cavity type FM, The mold type FM is fixed on the mold holder 27. Further, when the engaging portion 281 moves upward to the retracted position and the engagement with the mold FM is released, the movement in the width direction on the mold holder 27 of the mold FM is allowed.

  Ends of slide rods 291 of a pair of tilt cylinders 29 (corresponding to the rotation mechanism of the present invention) are connected to the back surface of the wall portion 271 so as to be rotatable. On the other hand, the lower end portion of the tilt cylinder 29 is rotatably attached to the tilt support 23. The tilt cylinder 29 is formed by a hydraulic cylinder or a pneumatic cylinder, and the slide rod 291 expands and contracts by the operation thereof, and the mold holder 27 is rotated clockwise with respect to the tilt support 23 in FIG.

  A fixed cylinder 30 is attached to each of the tilt guide portions 231 of the moving side tilt support 23. The fixed cylinder 30 corresponds to the operating device of the present invention, and is formed by a hydraulic cylinder or a pneumatic cylinder. The fixed cylinder 30 is operated when the mold holder 27 is in a standing state before the rotation, and the upper fixed rod 301 (the present invention). (Corresponding to the locking portion of the present invention) is raised (projecting position), fitted into the engaging hole (corresponding to the locking receiving portion of the present invention) of the fixing piece 274 protruding from the side surface of the wall portion 271 and tilted. The position of the mold holder 27 is fixed with respect to the support body 23. Further, when the fixed rod 301 moves downward to the retracted position and the engagement with the fixed piece 274 is released, the mold holder 27 is allowed to rotate with respect to the tilt support body 23.

  On the other hand, the wall portion 261 of the mold holder 26 extends in the vertical direction in the same manner as the wall portion 271, and abuts on the back surface of the core mold MM which is a male mold. It is attached to extend toward. A pair of tilt guide portions 221 are erected on the side surface of the tilt support body 22, and the mold holder 26 is rotatably attached to the tilt guide portion 221, so that the upper end portion of the wall portion 261 is a mold. It can be tilted away from the holder 27.

  A plurality of rollers 263 are arranged in the width direction on the roller support portion 262 and are rotatably attached to each other, and the core type MM is placed on the rollers 263. Each roller 263 is driven by an electric motor (not shown) attached below the roller support portion 262 so that the core type MM can move on the roller support portion 262 in the width direction (left-right direction in FIG. 1). .

  A pair of positioning cylinders 28 are attached to the upper end portion of the wall portion 261, and when this is operated, the engaging portion 281 (shown in FIG. 4) at the lower end descends to the forward position, and the upper surface of the core type MM is fixed. The core mold MM is fixed on the mold holder 26 by engaging with the hole. Further, when the engaging portion 281 moves upward to the retracted position and the engagement with the core mold MM is released, the movement in the width direction on the mold holder 26 of the core mold MM is allowed.

  Ends of slide rods 291 of a pair of tilt cylinders 29 (corresponding to the rotation mechanism of the present invention) are also connected to the rear surface of the wall 261 so as to be rotatable. The tilt support 22 is rotatably attached. By operating the tilt cylinder 29, the slide rod 291 expands and contracts, and the mold holder 26 is rotated counterclockwise in FIG.

  Similarly to the moving side tilt support member 23, fixed cylinders 30 are attached to the tilt guide portions 221 of the fixed side tilt support member 22. The fixed cylinder 30 operates when the mold holder 26 is in a standing state before turning, and the fixed rod 301 at the upper end is raised (projecting position), and the fixed piece 264 protruding from the side surface of the wall portion 261 is engaged. The position of the mold holder 26 is fixed with respect to the tilt support 22 by fitting into the hole. Further, when the fixed rod 301 moves downward to the retracted position and the engagement with the fixed piece 264 is released, the mold holder 26 is allowed to rotate with respect to the tilt support body 22.

  Next, the 300-ton pressure press apparatus 4 will be described. A pair of mold holding parts 42 and 43 are attached on the support base 41. Each of the mold holding portions 42 and 43 includes vertically extending wall portions 421 and 431 and roller support portions 422 and 432 that are connected to the lower ends of the wall portions 421 and 431 and extend in directions approaching each other. A plurality of rollers 423 and 433 are arranged in the width direction on the roller support portions 422 and 432, respectively, and these are rotatably attached. The rollers 423 and 433 can be driven by an electric motor (not shown) attached below the roller support portions 422 and 432. The core type MM and the cavity type FM are respectively placed on the rollers 423 and 433 and are held by the mold holding parts 42 and 43 by contacting the wall parts 421 and 431. A pair of positioning cylinders 44 are attached to the upper ends of the wall portions 421 and 431, similarly to the 10-ton pressure press apparatus 2. The positioning cylinder 44 engages with the fixing hole on the upper surface of the core mold MM or the cavity mold FM by operating, and fixes the core mold MM and the cavity mold FM on the mold holding portions 42 and 43.

  The mold holding part 43 is attached to a slide rail 411 (shown in FIG. 1) on the support base 41 so as to be movable in the vertical direction in FIG. A slide rod 451 of a pair of slide cylinders 45 is connected to the back surface of the wall part 431 of the mold holding part 43, and the other end of the slide cylinder 45 is fixed to a fixed object near the pressure press device 4. . The slide cylinder 45 is formed by a hydraulic cylinder or a pneumatic cylinder, and by operating the slide cylinder 45, the slide rod 451 is expanded and contracted to move the mold holder 43 relative to the mold holder 42 in the horizontal direction. On the other hand, the mold holding part 42 is fixed on the support base 41 so as not to move. Note that a plurality of rotatable rollers 46 are installed between the pressure press apparatuses 2 and 4 in order to allow the movement of the mold type FM and the core type MM between them.

  Next, a repair method for the core type MM and the cabinet type FM using the press system 1 according to the present embodiment will be described. First, the slide cylinder 24 is operated so that the mold holders 26 and 27 of the 10-ton pressure press apparatus 2 are separated from each other as shown in FIG. Etc. and are held on the mold holders 26 and 27, respectively. At this time, the positioning cylinder 28 is operated to fix the core mold MM and the cavity mold FM on the mold holders 26 and 27, respectively, and the fixed cylinder 30 is also operated, so that the mold holders 26 and 27 are respectively connected to the tilt support body 22, 23.

  Next, after applying Komyotan (Pendan) to the mold matching surface (surface on which the mold engages the other side) on one side of the core type MM and the cavity type FM, the slide cylinder 24 is operated to move The side tilt support 23 is moved closer to the fixed tilt support 22, and the core mold MM and the cavity mold FM on the mold holders 26, 27 are closed (matched) with each other with a load of about 10 tons ( 3 to 6). After closing the mold for a predetermined time, the slide cylinder 24 is actuated again, and the moving side tilt support body 23 is separated from the fixed side tilt support body 22 to open the core type MM and the cavity type FM (FIG. 7). To FIG. 9).

  Next, the fixed cylinder 30 is operated to release the mold holders 26 and 27 from being fixed to the tilt supports 22 and 23 (shown in FIG. 10). Thereafter, the tilt cylinder 29 is operated, and the mold holders 26 and 27 are rotated with respect to the tilt supports 22 and 23 so that the wall portions 261 and 271 are tilted in the direction in which the upper end portions are separated from each other (shown in FIG. 11). . As a result, the mold matching surfaces of the core mold MM and the cavity mold FM are directed upward, so that the condition of the mold alignment surfaces due to mold closing can be easily checked. The state of the mold mating surface is determined by whether or not the light agar applied to the mold on one side is attached to the mating surface of the mold on the other side. For parts with poor mold alignment, mold repair is performed.

  Next, after applying Komyotan to the mold matching surface on one side of the repaired core mold MM and the mold mold FM, both the molds MM and FM in the open mold state are rotated by the rollers 263 and 273. As a result, they are moved onto the mold holding portions 42 and 43 of the pressure press device 4 respectively. The positioning cylinder 44 is operated to fix the core mold MM and the cavity mold FM on the mold holding portions 42 and 43, and then the slide cylinder 45 is operated to load both molds MM and FM with a load of about 300 tons. The mold is closed for a predetermined time (shown in FIG. 2).

  Thereafter, the slide cylinder 45 is operated to open both the molds MM and FM, and then the positioning cylinder 44 is operated to release the fixing to the mold holding portions 42 and 43 of the core mold MM and the cavity type FM. Thereafter, the rollers 423 and 433 are rotated to return the respective molds MM and FM onto the mold holders 26 and 27 of the pressure press apparatus 2. Thereafter, as described above, the positioning cylinder 28 is operated to fix both the molds MM and FM on the mold holders 26 and 27, and then the tilt cylinder 29 is operated to rotate the mold holders 26 and 27. The condition of the mold matching surface by mold closing is inspected, and the mold is repaired as appropriate. In mold closing by the pressure press device 4, an inspection is mainly performed on the state near the parting line of both the molds MM and FM.

  According to this embodiment, the pair of mold holders 26 and 27 and the mold holders 26 and 27 that respectively hold both molds MM and FM are moved relative to each other in a substantially horizontal direction to open and close both molds MM and FM. The mold cylinders 26 and 27 are attached to the slide cylinder 24 and the pair of mold holders 26 and 27, and the upper surfaces of the mold holders 26 and 27 are tilted away from each other. Since the tilt cylinder 29 directed upward is provided, the slide cylinder 24 is operated to align both molds MM and FM, and then the tilt cylinder 29 is operated to align both molds MM and FM. It is possible to check the condition of the press, so that the press device 2 can be easily repaired and the maintenance can be improved. It can be.

  The mold holders 26 and 27 are rotatably supported by the tilt supports 22 and 23, and a fixed cylinder 30 on which the fixed rod 301 can move between the protruding position and the retracted position is mounted on the tilt supports 22 and 23. In addition, fixing pieces 264 and 274 that can be engaged with the fixing rod 301 are formed on the mold holders 26 and 27, and the fixing rod 301 moves to the protruding position when the mold holders 26 and 27 are standing. Thus, the mold holders 26 and 27 are engaged with the fixing pieces 264 and 274 to hold the mold holders 26 and 27 on the tilt supports 22 and 23, and the directions and positions of both molds MM and FM can be fixed accurately and firmly at the time of mold matching. Therefore, mold matching can be performed accurately, and both molds MM and FM can be repaired with high accuracy.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) The mechanism for horizontally moving the tilt support and the mechanism for rotating the mold holder with respect to the tilt support are not limited to hydraulic cylinders or pneumatic cylinders, but include link mechanisms driven by electric motors, etc. Any actuator mechanism is applicable.
(2) By using the press apparatus according to the present invention, all types of molds such as injection molds and press molds can be repaired.
(3) A fixed cylinder may be provided on the mold holder, and a member that engages with the fixed cylinder may be formed on the tilt support.
(4) A slide cylinder may be provided between both of the pair of tilt supports and the support, and the both tilt supports may be moved relative to each other.

It is a front view of the press system to which the press apparatus by this embodiment is applied. It is a top view of the press system shown in FIG. It is a whole perspective view of the 10-ton pressure press apparatus shown in FIG. It is a side view of the press apparatus shown in FIG. FIG. 5 is a plan view of FIG. 4. It is a right view of FIG. It is the perspective view showing the place where the press apparatus shown in FIG. 3 opened. It is a side view of the press apparatus shown in FIG. It is a top view of FIG. FIG. 9 is a side view illustrating a state where the engagement between the fixed cylinder and the mold holder of the press device illustrated in FIG. 8 is released. It is the side view showing the place which rotated the type | mold holder of the press apparatus shown in FIG.

Explanation of symbols

2 ... Pressure pressing device 22, 23 ... Tilt support 24 ... Slide cylinder 26, 27 ... Die holder 29 ... Tilt cylinder 30 ... Fixed cylinder 264,274 ... Fixed piece 301 ... Fixed rod FM ... Cabinet type MM ... Core type

Claims (2)

A pair of mold holders for holding male and female molds,
A mold slide mechanism that opens and closes the male and female molds by relatively moving the mold holders relative to each other in the horizontal direction, and a pair of mold holders, and the mold holders are rotated in directions in which their upper ends are separated from each other. A press apparatus comprising a rotation mechanism that moves the mating surfaces of the male and female molds in an open state upward by moving them. The mold holder is rotatably supported by a rotation holding portion, and an operating device in which a locking portion can be moved between a protruding position and a retracted position on one side of the mold holder and the rotation holding portion. And a latch receiving portion engageable with the latching portion is formed on the other side, and the latching portion moves to the protruding position before the mold holder rotates. The mold holder is fixed to the rotation holding portion by engaging with a stop receiving portion, and when the locking portion moves to the retracted position, the engagement with the locking receiving portion is released and the rotation holding is performed. The press apparatus according to claim 1, wherein the mold holder is allowed to rotate with respect to the portion.

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