JP2007038495A - Die reversing hook and die reversing base - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an implement for reversing a die that is small-sized, lightweight and simple in the structure, that is simple in maintenance and operation and easy to transfer, and that is safe and costs low. <P>SOLUTION: A hook is provided, which can be directly attached to a die main body and is constituted by a hook part, a horizontal contact plate and a vertical contact plate orthogonal to the horizontal contact plate and having a bolt through hole for linkage with the die. A base for reversing the die is also provided, in which one pair of supports are erected through a reinforcing angle, a rotary shaft is installed between the supports, and, between one pair of the support arms fitted to the rotary shaft, there is equipped at least one hanger part fitted with a securing pipe to stop the die reversing hook. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an instrument for reversing a mold used for press molding or injection molding, and more particularly to a mold reversing hook and a mold reversing base.

  Molds used for press molding, injection molding, etc. must be subjected to some maintenance work as needed according to the frequency of use, maintenance of accuracy, finished product status, etc. Work is done. Conventionally, such mold reversal work has been performed by lifting one end or both ends of the mold with a lifting device such as a hoist crane. If you try to reverse the mold with only one lifting device, if there are protrusions such as angular pins outside the mold frame, there is a risk of damaging such protrusions, which is very careful and time consuming. There was a need to do the work. Also, in order to lift both ends of the mold at the same time, multiple lifting devices such as hoist cranes are required, which requires a lot of equipment costs and space, and the fulcrum for lifting both ends of the mold is the lower part of the mold. In the case of being positioned at the position, there has been a problem that, during the reversing operation, the weight of the mold rotates around the fulcrum and becomes upside down. Many mold reversing devices have been proposed according to the shape and specifications of the intended use.

  In view of this situation, several mold reversing devices have been proposed in the past. Specific examples of the mold reversing apparatus include a mold reversing mold reversing carriage (Patent Publication 9-174615), a cylinder reversing mold maintenance apparatus (Patent Publication 2001-310337), and a cylinder reversing type. A work reversing device (Patent Publication No. 7-309579) as a crane device combination device has been proposed. These devices are both large and expensive, and require a lifting device such as a large hoist crane and a moving track such as a rail. It was difficult to install in a small factory with many small work sites.

  Therefore, in a small factory where a lifting device such as a large hoist crane or a moving track such as a rail cannot be laid, there are many cases of working in a narrow site where there is no maintenance space and complicated processing machines are arranged. The actual situation is that the mold is lifted using a chain block or a forklift that is normally used in a factory, and then moved or reversed from the lifted dangerous state. In doing so, there was a risk of damaging the mold itself and impairing accuracy, as well as risk of personal injury.

In this situation, there is no need for large, multiple lifting devices or rails and other facilities, and it is small, lightweight, simple in structure, easy to maintain and operate, easy to move, and safe. There has been a demand for a low-cost tool for reversing molds.
JP-A-9-174615 Japanese Patent Laid-Open No. 2001-310337 Japanese Patent Laid-Open No. 7-309579

  In view of the above problems, the present invention is to provide a tool for reversing a mold that is small and light in weight, simple in structure, easy in maintenance and operation, easy to move, and safe and low in cost. It is the purpose.

  To achieve the above object, the present invention provides a mold reversing hook that is directly attached to a mold body, and is connected to the mold perpendicular to the horizontal contact plate and the hook portion, the horizontal contact plate. A mold reversing hook having a vertical abutting plate provided with a bolt through hole.

  Further, according to the present invention, the mold reversing hook may be provided with an adjustment mechanism in which the vertical contact plate can be adjusted in the vertical direction with respect to the horizontal contact plate.

  Furthermore, the present invention provides a mold reversal base, in which a pair of support bases are connected to each other via a reinforcing angle, and a rotary shaft is constructed between the support bases, and is attached to the rotary shaft. A mold reversal base having a structure including at least one hanger portion in which a locking pipe for receiving a mold reversal hook is installed between a pair of supported arms.

  Furthermore, the present invention can employ a structure in which the height of the support base can be adjusted by providing a lifting mechanism in the frame of the support base in the mold reversal base.

  According to the mold reversing hook and the mold reversing base according to the present invention, it is small and light in weight and simple in structure, and does not require a large and multiple track equipment such as lifting devices and rails. Therefore, it is possible to provide a tool for reversing the mold which is simple and easy to operate and can be moved easily, and which is safe and low cost.

  The present invention is characterized in that it is composed of a mold reversing hook directly connected to the mold and a mold reversing base for receiving the mold reversing hook. Hereinafter, embodiments of a mold reversal hook and a mold reversal base according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a first embodiment of a mold reversing hook 1 according to the present invention, and FIGS. 1 (a) and 1 (b) each show the embodiment. 2 shows how the mold reversal hook 1 is attached to the mold W. FIG. 2 (a) is a perspective view and FIG. 2 (b) is a side view. The mold reversing hook 1 is a hook for reversing a mold that is directly attached to the mold body. The mold reversing hook 1 is a hook part 2, a horizontal abutting plate 3, and a mold W that is orthogonal to the horizontal abutting plate 3. It is comprised from the vertical contact plate 4 provided with the bolt through-hole 5 for connection.

  The hook portion 2 can be set in various shapes depending on the object to be hooked, but the object to be hooked is a pipe like a locking pipe 11b as in the mold reversal base 8 described later. In this case, the shape of the hook portion 2 is preferably a flat shape as shown in the drawing. Moreover, it is preferable that the hook width 2a in that case has a certain width | variety, in order to hold | maintain the locking pipe 11b stably. Furthermore, the material of the hook portion 2 is made of a metal having sufficient rigidity to support the weight of the mold W, and has a thickness sufficient to provide the rigidity.

  Both the horizontal abutment plate 3 and the vertical abutment plate 4 have a flat plate shape, and the material thereof is made of a metal having rigidity sufficient to support the weight of the mold W as described above. The thickness is sufficient to include. The size of the horizontal abutment plate 3 is not particularly limited, and may vary from a small area as shown in FIG. 1 (a) to a large area as shown in FIG. 1 (b). It is possible to make it the magnitude | size. The vertical abutting plate 4 has a size that covers from the upper surface of the mold W to at least the insertion position of the eyebolt 19. A bolt through hole 5 for connection with W is provided.

  The horizontal abutment plate 3 and the vertical abutment plate 4 are in an orthogonal state by abutting each other's edges, and the hook portion 2 is provided at the central portion of the corner that can be abutted. The mold reversal hook 1 according to the first embodiment of the present invention is configured. At this time, the hook part 2, the horizontal contact plate 3, and the vertical contact plate 4 can be integrated by welding separately from each other, or by forming all or a part thereof by integral molding.

  3A and 3B show a second embodiment of the mold reversal hook 1 according to the present invention, FIG. 3A is an overall perspective view, and FIG. FIG. 3 and FIG. 3C are side views showing a state in which the mold W is attached. The mold reversing hook 1 has a configuration in which an adjustment mechanism capable of adjusting the position of the vertical contact plate 4 in the first embodiment in the vertical direction with respect to the horizontal contact plate 3 is provided.

  The adjusting mechanism is not particularly limited, and various modes can be considered. In the drawing, a screw hole 6 in which a nut is welded is provided in the hook portion 2, and an adjusting screw 7 is screwed into the screw hole 6. In addition, the adjustment mechanism is configured by fixing the lower end portion of the adjustment screw 7 to the vertical contact plate 4.

  FIG. 4 is a perspective view showing the mold reversal base 8 according to the present invention. The mold reversal base 8 is a base for reversing the mold, and a pair of support bases 9 are connected to each other via a reinforcing angle 10, and a rotating shaft 12 is installed between the support bases 9. In addition, at least one hanger portion 11 in which a locking pipe 11b for receiving the mold reversal hook 2 is installed between a pair of support arms 11a attached to the rotary shaft 12 is provided.

  A pair of left and right support bases 9 are prepared, and the pair of support bases 9 are connected and fixed by a reinforcing angle 10. In addition to the reinforcing angle 10, a rotating shaft 12 is installed between the pair of support bases 9. The connecting position of the reinforcing angle 10 with respect to the support base 9 and the installation position of the rotating shaft 12 are not particularly limited. In the case of the rotating shaft 12, the mold W is supported via the mold reversing hook 1. In view of this, it is desirable to install it above the support base 9. Further, as shown in the drawing, it is desirable that an omnidirectional caster 21 or the like is provided on the lower surface of the support base 9 so that the mold reversal base 8 is movable.

  Further, the support base 9 may be provided with an elevating mechanism so that the height of the support base 9 can be adjusted. The method of the lifting mechanism is not particularly limited, and a jack type or a rack and pinion method can be considered. FIG. 5 shows a mold reversal base 8 provided with such an elevating mechanism. FIG. 5 (a) adopts a jack type elevating mechanism, and FIG. 5 (b) adopts a rack and pinion type elevating mechanism. Shows the case.

  As shown in FIG. 5 (a), when a jack type lifting mechanism is employed, the jack 15 is attached to the base of the mold reversal base 8, and the reinforcing angle portion 10 connected to the outer frame 18 of the support base 9 is attached. The right and left outer frames 18 are lifted and lowered by the jack 15. In the drawings, the lifting / lowering means for the jack 15 is shown manually by rotating the handle H. However, the lifting / lowering means is not limited to such lifting / lowering means, and may be an electric jack 15 lifting / lowering means by hydraulic pressure or the like.

  In addition, as shown in FIG. 5B, when the rack and pinion type lifting mechanism is adopted, the rack 16 is fixed to the base of the mold reversal base 8 and the handle H connected to the pinion 17 is turned. Thus, the left and right outer frames 18 are manually lifted.

  The hanger portion 11 includes a pair of support arms 11a and a locking pipe 11b installed between the support arms 11a. The pair of support arms 11a are respectively attached to the rotary shaft 12, so that the locking pipe 11b It functions as a hanger that receives the mold reversal hook 2. At least one hanger portion 11 is provided, and the hanger portion 11 is rotatable about the rotation shaft 12. FIG. 6 shows an operation state of rotation by the hanger portion 11. By making the hanger part 11 rotatable, when two or more hanger parts 11 are provided on the mold reversal base 8, the unnecessary hanger part 11 interferes with the reversing work of the mold W. It is possible to rotate to a position where it does not become a stand-by, and to have a function of releasing the upward tensile force when removing the hook portion 2 from the locking pipe 11b in the reversing operation of the mold W. .

  As for the rotation method of the hanger part 11, the support arm 11 a is fixed to the rotary shaft 12 and the rotary shaft 12 is rotatably mounted between the support bases 9 by a bearing or the like. A system in which the support arm 11a is mounted on the rotary shaft 12 so as to be pivotable while being fixed to the rotary shaft 12 can be considered, but any system may be used. At this time, in order to perform the reversing operation of the mold W, a structure for fixing the rotatable hanger portion 11 at a predetermined position is required. However, such a structure is not particularly limited. In the drawing, the support arm 11a has a substantially right triangle shape, a notch portion 11c is provided at one apex portion of the support arm 11a, and the notch portion 11c is brought into contact with the reinforcing angle 10 to thereby attach the hanger. A structure for fixing the portion 11 at a predetermined position is shown.

  The material, shape, and structure of each member in the mold reversal base 8 are not particularly limited except that it is made of metal and has rigidity.

  Next, an operation process for reversing the mold W using the mold reversal hook 1 and the mold reversal base 8 according to the present invention having the above-described configuration will be described in order based on the drawings.

  First, an eye bolt 19 is screwed into one end of the mold W, and a hanging hook 20 suspended by a chain block or a forklift is hooked onto the eye bolt 19 (FIG. 7). Then, by raising the chain block or the forklift, the mold W is rotated about 90 degrees, and is moved upward and lifted with one end to which the eyebolt 19 is attached facing upward (FIG. 8). At this time, the mold W is slowly lifted up with care so that the lowermost end of the mold W is not damaged.

  The mold reversal hook 1 is fixed to the other end of the mold W in a lifted state by an eyebolt or the like, and the mold reversal base 8 is moved and installed in a space below the mold W. Thereafter, the chain block or forklift is lowered to move the mold W downward. At this time, the position adjustment of the mold reversal base 8 is adjusted so that the hook portion 2 of the mold reversal hook 1 fixed to the mold W is caught by the locking pipe 11b of the hanger portion 11 in the mold reversal base 8. While performing, the mold W is slowly moved downward with a human hand in some cases (FIG. 9).

  In a state where the hook portion 2 is hooked on the locking pipe 11b of the hanger portion 11, the mold W moves downward so that one end tilts with the locking pipe 11b as a fulcrum by further lowering the chain block or the forklift. (FIG. 10). Finally, the mold W is rotated 180 degrees from the original state and turned upside down, and the mold W in that state is placed on a pedestal such as the movable carriage 14 or on the floor (FIG. 11). .

  Finally, the suspension hook 20 is removed from the eyebolt 19, the chain block or the forklift is raised, the mold reversing hook 1 is removed from the mold W, and further, the mold reversing base 8 is moved, The work process for inverting the mold W is completed (FIG. 12). Thereafter, in some cases, the mold W is moved to the maintenance work place using the movable carriage 14, and the mold W is maintained.

  As described above, the mold reversal hook 1 and the mold reversal base 8 according to the present invention are large and do not require a plurality of lifting devices or rail facilities such as rails, are small and light in weight, and have a simple structure. Maintenance and operation are simple and easy to move, and can be realized safely and at low cost. Therefore, a very excellent instrument can be provided in the field of mold reversal.

It is a figure which shows 1st embodiment of the metal mold | die inversion hook concerning this invention. It is a figure which shows 1st embodiment of the metal mold | die inversion hook concerning this invention. It is a figure which shows 2nd embodiment of the metal mold | die inversion hook concerning this invention. It is a perspective view which shows the metal mold inversion base concerning this invention. It is explanatory drawing which shows the raising / lowering mechanism of a mold inversion base. It is explanatory drawing which shows rotation operation | movement of the hanger part in a metal mold | die inversion base. It is explanatory drawing which shows the operation | work process which reverses a metal mold | die. It is explanatory drawing which shows the operation | work process which reverses a metal mold | die. It is explanatory drawing which shows the operation | work process which reverses a metal mold | die. It is explanatory drawing which shows the operation | work process which reverses a metal mold | die. It is explanatory drawing which shows the operation | work process which reverses a metal mold | die. It is explanatory drawing which shows the operation | work process which reverses a metal mold | die.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mold reversing hook 2 Hook 2a Hook width 3 Horizontal contact plate 4 Vertical contact plate 5 Bolt through hole 6 Screw hole 7 Adjustment screw 8 Mold reversal base 9 Support base 10 Reinforcement angle 11 Hanger part 11a Support arm 11b Engagement Stop pipe 11c Notch 12 Rotating shaft 14 Moving carriage 15 Jack 16 Rack 17 Pinion 18 Outer frame 19 Eye bolt 20 Suspension hook
21 Caster H Handle W Mold

Claims (6)

  A hook for reversing a mold that is directly attached to a mold body, and includes a hook portion, a horizontal abutting plate, and a vertical abutment that is perpendicular to the horizontal abutting plate and is connected to the die through a bolt hole. A mold reversing hook comprising a contact plate.   2. The mold reversing hook according to claim 1, wherein the mold reversing hook is provided with an adjusting mechanism capable of adjusting a position of the vertical contact plate in a direction perpendicular to the horizontal contact plate.   A base for reversing a mold, wherein a pair of support bases are connected via a reinforcing angle, and a rotary shaft is installed between the support bases, and a pair of support arms mounted on the rotary shaft A mold reversal base comprising at least one hanger part between which a latch pipe for receiving a mold reversal hook is installed. The mold reversal base according to claim 3, wherein in the mold reversal base, a height adjustment mechanism is provided in a frame of the support base, so that the height of the support base can be adjusted.












Delete (Does not rotate)
In the hanger part, a locking pipe is provided in the vicinity of the horizontal end point with the right side of the support arm of a substantially right triangle facing up, the long side part being horizontal, and the short side part being vertically opposed. 4. The rotary shaft according to claim 3, comprising a rotating shaft that is connected, has a notch portion near the lowermost end of the vertical portion of the short side, and allows the connecting shaft at the upper end of the vertical portion to rotate from a substantially vertical state to a horizontal state. Mobile mold reversal base. (rotation)
In the hanger part, a locking pipe is provided in the vicinity of the horizontal end point with the right side of the support arm of a substantially right triangle facing up, the long side part being horizontal, and the short side part being vertically opposed. 4. The rotary shaft according to claim 3, comprising a rotating shaft that is connected, has a notch portion near the lowermost end of the vertical portion of the short side, and allows the connecting shaft at the upper end of the vertical portion to rotate from a substantially vertical state to a horizontal state. Mobile mold reversal base.

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