JPH0525860Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to an elevating mold setting device for injection molding equipment, and in particular, the invention relates to an elevating mold setting device for an injection molding machine, and in particular, a mold is placed on a mold mounting board from the outside in a direction parallel to the board surface and approximately horizontally. The present invention relates to a setting device that is carried into a mold, raised and lowered, and fixed in a predetermined position, and a setting device that fixes a carried mold in a predetermined position.

[Prior art]

In horizontal injection molding machines, various devices are used as mold setting devices to carry the mold into the fixed platen and movable platen from the outside parallel to the platen surface in a substantially horizontal direction, position it on the platen surface, and fix it. For example, in Japanese Patent Publication No. 56-19251,
This is a typical device in which three sets of receiving guides are installed at appropriate intervals in the transport direction on the lower part of the platen surface of a fixed platen and a movable platen, and two sets of clamping devices for fixing molds are placed between the receiving guides. A flat slide that supports the lower end of the mold movably in the transport direction is attached to the upper end of each receiving guide, and two sets of clamp devices are installed on the upper parts of the fixed platen and movable platen respectively. A mold setting device is described which is provided with a pair of upper and lower stoppers for receiving and positioning the molds at the forward end positions of the mold carrying-in forward end position on the board surface.

[The problem that the idea aims to solve]

In general, injection molding machines use molds of various sizes to perform molding, and the center of each mold must be positioned accurately at the center of the board, so each time the size of the mold changes, the above It is necessary to change the mounting positions of the set of receiving guides, the four sets of clamp devices, and the four sets of stoppers, so the receiving guides, clamp devices, and stoppers are usually removably fixed to the panel surface with bolts. For example, when fixing each receiving guide with two bolts, each clamping device with four bolts, and each stopper with two bolts, a total of 26 bolts are used on each board surface, and each size is different. A large number of bolt holes are required to accommodate this mold. Although a number of bolt holes are generally pre-prepared in a standardized arrangement pattern on the board surface, depending on the size of the mold, it is often impossible to utilize the bolt holes from now on, and in that case, tapping on the board surface is necessary. For example, six bolt holes for three sets of receiving guides must be machined.

Moreover, each time the size of the mold changes, a total of 52 bolts must be installed and removed to change the positions of the receiving guide, clamp device, and stopper, which requires a great deal of labor and time and reduces the operating rate of the molding machine. is unavoidable.

In addition, in the case of a relatively small molding machine, the board is small and guide rods are inserted through the four corners of the board, so the receiving guide and clamping device must be installed in a very narrow space. The individual receiving guides and clamping devices require a large amount of space as a whole, so it is often difficult to mount them because there is insufficient space to arrange them on the board.

Furthermore, since the receiving guide and the clamping device have separate structures, their individual manufacturing costs are high.
The total manufacturing cost of the mold setting device becomes very high.

The purpose of the present invention is to provide an elevating type mold setting device for an injection molding machine, which allows the height position on the board surface to be easily changed using the elevating device, which can be downsized and manufactured at low cost. It is.

[Means to solve the problem]

The elevating type mold setting device for an injection molding machine according to the first claim is such that a mold is conveyed from the outside in a direction parallel to and substantially horizontally to a board surface between a pair of mold mounting boards of a horizontal injection molding machine. In a device for fixing a mold to a mold, an integrated main body member extending in the transport direction is provided at the bottom of the board surface of each mold mounting board so as to be movable in the vertical direction. Provided with a transport support mechanism that supports movably,
A clamp device for fixing the mold is incorporated into the main body member, a guide mechanism is provided to guide the main body member vertically movably and restrain the movement out of the board surface, and an elevating device is provided to drive the main body member up and down. It is something that

The elevating type mold setting device for an injection molding machine according to the second aspect of the present invention provides a mold setting device for an injection molding machine, in which a mold carried in from the outside in a direction parallel to and substantially horizontally to the board surface is placed between a pair of mold mounting boards of a horizontal injection molding machine. In the device for fixing the mold to the mold mounting board, an integrated main body member extending in the conveying direction is provided on the top of the board surface of each mold mounting board so as to be movable in the vertical direction, and a clamping device for mold fixing is incorporated into the main body member, and A guide mechanism is provided to guide the main body member vertically movably and restrain the movement out of the board surface, and an elevating device is provided to drive the main body member up and down.

[Effect]

In the elevating type mold setting device for an injection molding machine according to the first claim, when a mold is carried from the outside in parallel to the plate surface and in a substantially horizontal direction between a pair of mold mounting plates of a horizontal injection molding machine. The mold is carried in while being supported so as to be able to move smoothly in the transport direction by transport support mechanisms for the main body members provided at the lower part of the board surfaces of a pair of mold mounting boards, and the main member is moved to the guide mechanism by an elevating device. The mold is raised and lowered together with the main body member to a predetermined position, and then fixed to the board surface by a clamp device.

Here, since the transport support mechanism and the clamp device are integrally built into the main body member, the transport support mechanism and the clamp device can be moved to a predetermined height position simply by driving the main body member up and down with the lifting device. I can do it. Therefore, the height position of the mold setting device can be easily and efficiently changed in response to changes in the size of the mold.

Since the conveyance support mechanism and the clamp device are incorporated into the main body member rather than being separate, the elevating mold setting device as a whole becomes smaller.

In addition, since the conveying support mechanism and the clamping device are not separate units but are incorporated into the main body member, the number of parts of the entire elevating mold setting device can be greatly reduced.

In the elevating mold setting device for an injection molding machine according to the second aspect, when the mold is carried between the pair of mold mounting plates as described above, the main body member is moved by the guide mechanism by the elevating device. The mold is raised and lowered through the mold and held in a predetermined position, and then the mold is fixed to the board surface by a clamping device.

Here, since the clamping device is integrally built into the main body member, the clamping device can be moved to a predetermined height position simply by driving the main body member up and down using the lifting device. Similarly, the height position of the elevating mold setting device can be easily and efficiently changed in response to changes in mold size, making the elevating mold setting device more compact as a whole, and increasing the height of the elevating mold setting device. The number of parts that make up the setting device is also significantly reduced.

[Effect of idea]

According to the elevating mold setting device for an injection molding machine according to the first aspect, as explained above, the height position of the main body member in which the clamping device and the conveyance support mechanism are incorporated can be easily and easily changed by the elevating device. Since it can be done efficiently, there is no need to attach and detach multiple bolts and change the position of clamp devices etc. in response to changes in the size of the mold, improving the operating efficiency of the molding machine. By downsizing the setting device, it can be easily applied to a relatively small molding machine, and the manufacturing cost can be significantly reduced by significantly reducing the number of constituent parts.

According to the elevating mold setting device for an injection molding machine according to the second claim, as explained above, the height position of the main body member in which the clamping device is incorporated can be easily and efficiently changed by the elevating device. This eliminates the need to attach and detach multiple bolts and change the position of the clamp device in response to changes in mold size, improving the operating efficiency of the molding machine and downsizing the elevating mold setting device. Therefore, effects such as being able to be easily applied to a relatively small molding machine and significantly reducing manufacturing costs due to a significant reduction in the number of constituent parts can be obtained.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, a fixed platen 1 and a movable platen 2 of a horizontal injection molding machine I are arranged facing each other in parallel in the front and back, and the movable platen 2 is guided by four guide rods 3. It is movable in the front and back direction by a hydraulic cylinder (not shown), and an injection device (not shown) is disposed at the rear of the fixed platen 1, and the front end of the injection nozzle N is formed approximately in the center of the fixed platen 1. insertion hole 4
It is arranged so that it can be inserted into.

In the above molding machine I, a pair of molds 5 consisting of a fixed mold 5a and a movable mold 5b are used, and the fixed mold 5a is placed in the center of the plate surface 1a of the fixed platen 1, and the movable mold 5b are respectively fixed to the center of the plate surface 2a of the movable platen 2, and the pair of molds 5 are used to perform molding, but since the molding machine I itself is already well known, a detailed explanation will be omitted. .

The molding machine I has roller clamp units 6 (corresponding to the lower elevating mold setting device) attached to the lower part of the platen surface 1a of the fixed platen 1 and the lower part of the platen surface 2a of the movable platen 2. ), clamp units 7 attached to the upper part of the plate surface 1a of the fixed platen 1 and the upper part of the plate surface 2a of the movable platen 2 (this corresponds to the upper elevating type mold setting device), the fixed platen 1 and the movable platen Lifting devices 8 are disposed at the upper and lower ends of the board 2 and drive each roller clamp unit 6 or each clamp unit 7 up and down.
and a positioning guide groove 9 recessed in the plate surface 1a of the fixed plate 1. In addition, the molding machine I
On the left side, there is a mold magazine 10 that can store a plurality of molds 5, and a mold magazine 10 that transports the molds 5 horizontally and horizontally between the exchange station 11 of the mold magazine 10 and the molding machine I. intermediate conveyor 12;
A mold transfer drive device 14 that pushes and pulls the mold 5 is provided between the loading/unloading position 13 between the fixed platen 1 and the movable platen 2 and the exchange station 11.

The mold magazine 10 includes a plurality of storage sections 15A that are formed in the upper and lower sections of the two-story rectangular parallelepiped frame 15 and arranged side by side in the front and back direction.
Inside, pallet 1 contains replacement molds 5 of various sizes.
The mold 5 is stored in a state where it is placed on each pallet 6, and the mold 5 is circulated together with the pallet 16 using a plurality of hydraulic cylinders 17 and an elevating device. An idling roller 16a is provided, and the mold 5 is placed in the storage section 15.
It is designed to be carried in and out from the exchange station 11 at the rearmost part of the upper stage of A. Incidentally, since this mold magazine 10 has little to do with the present invention, a detailed explanation thereof will be omitted.

The intermediate conveyor 12 includes a first conveying section 18 provided on the conveyor table, and a first conveying section 1 fixed to the lower left side of the fixed platen 1 and the movable platen 2, respectively.
It consists of a pair of front and rear second conveyance sections 19 protruding leftward so as to be continuous with the pallet 8, and each of the conveyance sections 18 and 19 is composed of an idling roller conveyor, and the conveying surface thereof is connected to the idle rotation of the pallet 16. The die 5 is provided to be in line with and on the same level as the conveying surface of the rollers 16a, and the mold 5 is conveyed from the exchange station 11 to the loading/unloading position 13 via each idle roller 16a and the intermediate conveyor 12. The first conveying section 18 includes a guide bar 20 with vertical guide wheels, and a hydraulic cylinder 2 that drives the guide bar 20 in the front and back direction.
A positioning device 22 consisting of a
In, the fixed side mold 5a and the plate surface 1a of the fixed platen 1
The movable side mold 5b and the plate surface 2a of the movable plate 2 are positioned so that the gap between them is several mm, and the gap between the movable mold 5b and the plate surface 2a of the movable plate 2 is approximately 10 mm.

The mold transfer drive device 14 includes an idling roller 16
a and a guide frame 23 arranged from near the rear left end of the exchange station 11 to the left end of the carry-in/out position 13 at a position slightly above the conveyance surface of the intermediate conveyor 12;
A windable steel drive band plate 24 is pushed and pulled in the left-right direction in a guide groove (not shown) formed in the guide frame 23, and a drive band plate 24 is disposed near the left end of the guide frame 23. It is equipped with a push-pull drive device 25 that moves forward and backward with respect to the guide groove, and a push-pull tool 26 that is connected to the right end of the drive band plate 24 and configured to be able to be attracted to the mold 5 by an electromagnet.

Next, the roller clamp units 6 provided at the lower part of the fixed platen 1 and the lower part of the movable platen 2 will be explained, but since both are the same, the roller clamp unit 6 on the fixed platen 1 side will be explained.

As shown in FIGS. 2 to 4, a main body member 51 in the form of a rectangular parallelepiped block is attached to the lower part of the plate surface 1a of the stationary platen 1 in the area where the mold 5 is attached and to fit between the left and right guide rods 3. 1a, and four sets of idle rollers 52 are installed at appropriate intervals in the left-right direction near the upper end of the main body member 51 and near the board surface 1a. A clamping device 53 is installed in each of the right parts. Panel surface 1 corresponding to each clamp device 53
A has a T-groove 54 of a predetermined length recessed upward from the lower end of the T-shaped leg portion 51a of the main body member 51.
is slidably engaged with the T-slot 54, and the main body member 51
can move up and down while remaining in contact with the board surface 1a. Note that the four sets of idle rollers 52 are connected to the mold 10.
This corresponds to the transport support mechanism 52A that supports the T-slot 5 so as to be able to move smoothly in the transport direction.
4 and the T-shaped leg portion 51a correspond to a guide mechanism 55 that guides the main body member 51 so as to be movable in the vertical direction and restrains its movement outside the board surface 1a.

As shown in FIGS. 3 and 4, each of the clamp devices 53 includes a clamp lever 59 that presses and fixes the mold 5, a clamp cylinder 60 that drives the clamp lever 59, and a clamp lever 59 that is indicated by a solid line in the figure. It is equipped with a return mechanism 66 for returning to the rest position.

The clamp lever 59 is approximately T-shaped and the main body member 5
1, and is rotatably connected to the main body member 51 at its fulcrum portion 59a via a horizontal support shaft 62, and the force point portion 59b of the clamp lever 59 is connected to the piston member 60B. When it comes into contact with the upper end surface and the clamp lever 59 is swung upward by the clamp cylinder 60 and switched to the clamp position shown by the chain line, the flange 5c of the mold 5 is pressed and fixed to the board surface 1a by the action point 59c. However, when the clamp lever 59 is returned to the rest position by the return mechanism 66, the clamp lever 59 retracts into the housing portion 61.

Regarding the clamp cylinder 60, a cylinder hole 60 is formed in the lower half of the front part of the main body member 51 in the vertical direction.
A is formed in the cylinder hole 60A, and a piston member 60B is slidably and oil-tightly installed in the cylinder hole 60A, and an elongated hole 63 elongated in the vertical direction is formed in the upper half of the piston member 60B.
is formed, and a retaining pin 64 whose both ends are fixed to the main body member 51 is attached to the elongated hole 63, and the piston member 60B is retained by the retaining pin 64 so as to be movable up and down a predetermined distance in the cylinder hole 60A. ing. In this way, since the stroke of the piston member 60B is restricted by the elongated hole 63 and the retaining pin 64, the structure of the cylinder hole 60A and the piston member 60B can be simplified. Each clamp device 5
A hydraulic oil chamber 65 formed on the lower side of the piston member 60B of No. 3 is communicated with an oil passage 60a formed in the left-right direction in the lower part of the main body member 51, and is connected to an oil passage 60a through a hydraulic hose at the end of the main body member 51. and connected to the hydraulic supply system.

Regarding the return mechanism 66, a spring accommodation hole 66a is formed in the main body member 51 in the vertical direction behind and parallel to the cylinder hole 60A.
A compressed return spring 66c is inserted into 6a,
A rod 66d with a nut 66b screwed onto its lower end is inserted through the return spring 66c, and its upper end protrudes from the spring receiving portion 66e, and its upper end is connected to the middle part of the clamp lever 59 by a link 66f. When clamping, the rod 66d moves upward and the return spring 66c is compressed by the nut 66b, and when the clamp is released, the return spring 66c is compressed.
Due to the strong spring force, the rod 66d retracts downward and returns the clamp lever 59 to the rest position.

In the clamp device 53, when the clamp is released, the clamp lever 59 retracts to the rest position and does not protrude outside the upper end of the main body member 51, so that it does not interfere with the mold 5 being transported.

The clamp units 7 attached to the upper part of the fixed platen 1 and the upper part of the movable platen 2 are connected to the rollers and the movable platen 2.
Since this is the same as the clamp unit 6 except for the idle roller 52, which is mounted in an inverted manner, a detailed explanation thereof will be omitted.

The elevating device 8 is disposed approximately at the center of the lower end of the fixed platen 1 and the movable platen 2, and approximately at the center of the upper end of the fixed platen 1 and the movable platen 2, and each roller clamp unit 6 is disposed at a substantially central portion of the upper end of the fixed platen 1 and the movable platen 2. Since each lifting device 8 is the same and is separately driven up and down along the T-groove 54, the lifting device 8 disposed approximately at the center of the lower end of the stationary platen 1 will be described.

As shown in FIGS. 2 to 4, a support plate 70 extending downward is fixed to the lower end surface of the stationary platen 1 with bolts at its upper end.
A hydraulic cylinder 71 is fixed in the vertical direction to the front end surface of the body member 51, and a substantially U-shaped connecting plate 72 is fixed to the bottom surface of the main body member 51, and the piston rod 71a of the hydraulic cylinder 71 has an upper end portion. is connected to the main body member 51 through a connecting plate 72 so as not to be relatively vertically movable, and guide rods 73 are arranged parallel to the hydraulic cylinder 71 on both left and right sides of the hydraulic cylinder 71, and the upper end of the guide rod 73 is connected to the main body member 51. The guide rod 7 is fixed to the member 51.
3 is guided so as to be vertically movable by passing through a pair of receiving members 74 disposed near both upper and lower ends of the support plate 70, and when the hydraulic cylinder 71 is driven, the main body member 51 is moved to the piston rod 71a. It is adapted to be driven up and down along the T-slot 54 via the connecting plate 72.

As shown in FIGS. 1 and 2, the positioning guide groove 9 is formed on the plate surface of the fixed platen 1 so as to allow the engagement protrusion 5d that protrudes rearward from the approximate center of the fixed mold 5a to enter. The upper circumferential wall 80 of the positioning guide groove 9 is recessed in the horizontal direction from the center part of the board 1a to the left end surface, and the upper peripheral wall 80 of the positioning guide groove 9 is formed on the board surface 1a in a state where the mold 5 is injection molded.
The right peripheral wall 81 of the positioning guide groove 9 is formed at a height that contacts the upper end of the circumferential surface of the engaging protrusion 5d when the mold 5 is centered. The connecting portion between the upper circumferential wall 80 and the right circumferential wall 81 is formed in a 1/4 circumferential surface having the same shape as the circumferential surface of the engagement protrusion 5d. That is, the right peripheral wall 81 forms a horizontal regulating part 81a for positioning the mold 5 in the horizontal direction, and the right end of the upper peripheral wall 80 forms a vertical regulating part for positioning the mold 5 in the vertical direction. 80a.

The lower peripheral wall 82 of the positioning guide groove 9 is formed at a position that does not prevent the engagement protrusion 5d from entering even when the smallest mold 5 is carried in.

Next, the operation of the lifting device 8 will be explained.

When carrying the mold 5 into the molding machine I, first, each roller/clamp unit 6 is held at the lowest position so that the conveyance surface of the idle roller 52 is at the same level as the conveyance surface of the intermediate conveyor 12, and With each clamp unit 7 held at the uppermost position, the molds 5 stored in the mold magazine 10 are driven in circulation to move a desired mold 5 to the exchange station 11, and the push/pull drive device 25 is driven. The mold 5 placed on the pallet 16 of the exchange station 11 is transported to the loading/unloading position 1 via the intermediate conveyor 12.
Transport to 3. At this time, the mold 5 moves as shown by the two-dot chain line in FIG. , loading/unloading position 13
It is positioned in the horizontal direction (that is, in the left-right direction).

Next, as shown in FIG. 3, when the hydraulic cylinder 71 of the lifting device 8 disposed at the lower part of the fixed platen 1 and the movable platen 2 is driven, each roller clamp unit is moved through the piston rod 71a and the connecting plate 72. 6 is driven upward along the T-slot 54.
The engaging protrusion 5d moves upward in the positioning guide groove 9 and comes into contact with the vertical restriction part 80a, and the mold 5 is placed in the loading/unloading position 13 as shown by the dashed line in FIG. Stops rising when positioned in the vertical direction.

With the mold 5 positioned in this manner, the lifting device 8 disposed above the fixed platen 1 and the movable platen 2
After lowering the clamp unit 7 to the vicinity of the mold 5, all the clamp devices 53 of the units 6 and 7 are driven to move the mold 5 onto the plate surfaces 1a, Fixed to 2a.

When carrying out the mold 5 from the molding machine I, in contrast to the above, the drive of the clamp device 53 is released, the clamp unit 7 is driven upward to the uppermost position, and the roller clamp unit 6 is driven downward to the lowermost position. After that, the mold 5 is transported from the loading/unloading position 13 to the exchange station 11 by the push/pull drive device 25.

As described above, the simply constructed lifting device 8 consisting of the hydraulic cylinder 71 drives the mold 5 up and down via the roller clamp unit 6, and also drives the roller clamp unit 6 and the clamp unit 7 up and down. Since the mold 5 can be clamped at a height position corresponding to its size, there is no need to reinstall the clamping device 53 and idle roller 52 each time the mold 5 is replaced with one of a different size.
It is possible to improve the work efficiency of replacement.

Furthermore, by forming the pair of clamp devices 53, the four idle rollers 52, and the pair of clamp devices 53 into units, these can be connected to the board surface 1a,
There is no shortage of bolt holes formed on the panels 1a and 2a, unlike when attaching with a large number of bolts separately to the bolt holes formed on 2a, and even a relatively small molding machine I with few bolt holes can easily be used. Can be attached.

In addition, the mold 5 is positioned by the engagement protrusion 5d coming into contact with the horizontal direction regulating section 81a and the vertical direction regulating section 80a when being carried in and when being driven up and down, so that it can be easily positioned even if the mold 5 has a complicated structure equipped with an air cylinder or the like. No positioning device is required.

Here, the elevating device 8 may be replaced with one having various configurations as described below. In addition, here, fixed plate 1
The one at the lower end approximately in the center will be explained.

Regarding the lifting device 8A according to the first modification, the fifth
As shown in the figure, a vertically oriented cylinder hole 75 is formed approximately at the center of the main body member 51A, and a piston member 76 is slidably and oil-tightly mounted in the cylinder hole 75. Member 51
A piston rod 76a oil-tightly penetrates through A and extends downward, and a hydraulic cylinder 71A is constituted by the cylinder hole 75 and the piston member 76. A support plate 77 protrudes forward at the lower end of the stationary plate 1, approximately at the center thereof. The lower end of the piston rod 76a is fixed to a support plate 77, and when pressure oil is supplied from an oil passage 78a to a hydraulic chamber 78 on the lower side of the piston member 76, the hydraulic chamber 78 is
8 expands and the main body member 51A is driven downward, and when pressure oil is supplied from the oil passage 79a to the upper hydraulic working chamber 79, the hydraulic working chamber 79 expands and the main body member 51A is driven upward as shown by the two-dot chain line. It is becoming more and more common. In the lifting device 8A, the main body member 51
Since the cylinder hole 75 of the hydraulic cylinder 71A is formed inside A, the hydraulic cylinder 71A does not protrude outward from the fixed platen 1 and the movable platen 2.
The elevating device 8A can be configured compactly.

Regarding the lifting device 8B according to the second modification, the sixth
As shown in FIG. 7, each T-slot 54 of the fixed platen 1
A support member 87 having a substantially T-shaped cross section is disposed at the lower end portion corresponding to the plate portion 85 and a flat support portion 86 extending downward from the substantially central portion of the plate portion 85. The rear end of the portion 85 is fixed to the lower end surface of the stationary platen 1 with bolts, and a pivot portion 85a extending a predetermined distance forward from the platen surface 1a is formed at the front end thereof. A guide hole 85b opening in the vertical direction is formed near the groove 54, and a guide hole 86a communicating with the guide hole 85b is formed in the support part 86 up to the vicinity of its lower end, between the lower ends of the left and right support parts 86. A gear case 88 that protrudes forward is fixed to the
A screw shaft 89 oriented in the vertical direction is disposed in front of each support portion 86, respectively. Screw shaft 7
The upper end portion of 4 is rotatably supported by the pivot portion 70a via a bearing 90, and the portion near the lower end extends into the gear case 88 and is connected to the upper wall portion 7 of the gear case 88.
8a and the lower wall portion 78b via a pair of bearings 91, the screw shaft is supported rotatably and immovably in the vertical direction, and between the pivot portion 85a of the screw shaft 89 and the gear case 88 is a screw shaft having a male thread on its outer periphery. A portion 89a is formed. gear case 8
An electric motor 92 is disposed approximately at the center of the upper part of the gear case 88, and a first gear 83 is fixed to the lower end of a rotational drive shaft 92a extending in the vertical direction and extending into the gear case 88. At the three equal positions, a shaft member 94 oriented in the vertical direction is attached to the upper wall portion 88a.
and the lower wall portion 88b, and a second gear 95 meshing with the first gear 93 is provided in the middle of the shaft member 94.
are arranged rotatably, and a third gear 96 that meshes with the second gear 95 is fixed in the gear case 88 near the lower end of each screw shaft 89. When the electric motor 92 is driven, the first gear 93 and Second
Each screw shaft 89 is rotationally driven in the same direction as the rotary drive shaft 92a via the gear 95 and the third gear 96. A female threaded member 97 is externally fitted into the middle of the screw shaft 89, and a connection extending upward from the plate portion 85 is provided at the rear end of the female threaded member 97 through each guide hole 85b, 86a of the support member 87. Part 97a
is integrally formed, and the T of the lower end surface of the main body member 51 is
Connecting blocks 98 each having a substantially U-shaped cross section are fixed at positions corresponding to the grooves 54 , and a pin member 99 oriented in the front-rear direction is installed on an arm portion 98 a extending downward of the connecting block 98 . The female threaded member 97 is connected to the main body member 51 via a pin member 99 and a connecting block 98.

When the electric motor 92A is rotationally driven in the lifting device 8B, the first gear 93, the second gear 95,
The screw shaft 89 is rotationally driven via the third gear 96, and the female threaded member 97 moves upward or downward while engaging with the screw shaft 89, and the main body member 51
is driven up and down. Therefore, compared to the case of driving with a hydraulic cylinder, the height position of the mold 5 can be easily finely adjusted, and the height position of the mold 5 does not fluctuate due to hydraulic leakage or the like.

Regarding the lifting device 8C according to the third modification, the eighth
As shown in the figure, a gear case 88A is fixed to the lower end of the stationary platen 1, an electric motor 92A is fixed to the substantially central part of the lower end of the gear case 88A, and the main body member 5
1, the upper end of a screw shaft 89A oriented in the vertical direction is connected non-rotatably and non-vertically movably to a position corresponding to the T-groove 54 on the lower end surface of the screw shaft 89A.
A male thread is formed on the outer circumferential portion of the gear case 88A except for the upper end thereof, and the third gear 86A has bearings 91A on the upper wall portion 88a and the lower wall portion 88b of the gear case 88A, respectively.
is arranged so as to be rotatable and immovable up and down through the
An intermediate portion of the screw shaft 89A is inserted into and screwed into the third gear 96A.

When the electric motor 92A is rotationally driven in the lifting device 8C, the third gear 96A is rotationally driven via the first gear 93 and the second gear 95, and the screw shaft 89A engages with the third gear 96A and moves upward or downward. The main body member 51 is moved up and down.

Here, the clamp device 53 may be replaced with various configurations as described below. In addition, each roller
Since the lamp unit 6 and each positioning/clamping unit 7 are similar in structure, the roller/clamping unit 6 attached to the lower part of the stationary platen 1 will be described.

As shown in FIG. 9, the clamping device 100 according to the first modification is incorporated into the right and left parts of the main body member 51, respectively, and has cylinder holes 1 oriented in the vertical direction.
A piston member 102 is slidably mounted in an oil-tight manner in the cylinder hole 101 and the piston member 1.
02 and the first hydraulic oil chamber 103 and the second hydraulic oil chamber 1
04 is constructed, and a piston member 10 is disposed within the first hydraulic oil chamber 103.
A strong assisting spring 106 is provided which always urges the piston member 102 upwardly, and
07, a substantially T-shaped clamp lever 108 is rotatably supported at its fulcrum portion 108a via a support shaft 109, and the clamp lever 108 is connected to a link member 110, a return spring 111, and a rod member 112.
A return mechanism 113 consisting of the like allows it to be held at the rest position shown by the solid line. In the clamping device 100, the piston member 102 that supplies hydraulic pressure to the first hydraulic oil chamber 103 is driven upward, and the force point portion 108b of the clamp lever 108 is pushed upward on the upper end surface of the piston member 102. As shown in , the clamp lever 108 rotates upward around the fulcrum portion 108a,
At 08c, the flange 5c of the stationary mold 5a is clamped, and when pressure oil is supplied to the second hydraulic oil chamber 104, the piston member 102 resists the biasing force of the assisting spring 106.
is driven downward, and the return mechanism 113 returns the clamp lever 108 to the rest position. In this clamping device 100, even if the supply of pressure oil to the first hydraulic oil chamber 103 decreases during clamp driving, an appropriate clamping force is maintained by the assisting spring 106.

As shown in FIGS. 10 and 11, regarding the clamp device 123 according to the second modification, the main body member 5
Clamp levers 121 and
A single-acting hydraulic cylinder 12 oriented in the front-rear direction inserts the
The piston rod 122a of the hydraulic cylinder 122 passes through the main body member 51 and is movable in the vertical direction into the T-groove 54 at the T-shaped leg portion 122b formed at the rear end thereof, and is mounted outside the panel surface 1a. A predetermined gap is formed between the front end surface of the housing 124 of the hydraulic cylinder 122 and the main body member 51, and the clamp lever 121 is engaged with the movement restraint at its fulcrum portion 121a.
The housing 124 is rotatably supported via a pair of support shafts 125 . When pressure oil is supplied to the hydraulic oil chamber 126 of the hydraulic cylinder 122 in the clamp device 123, the housing 124 and the clamp lever 121
is pulled toward the board surface 1a side, the force point part 121b comes into contact with the main body member 51, the clamp lever 121 rotates around the fulcrum part 121a, and the force point part 121
The flange 5c of the stationary mold 5a is clamped at c,
Furthermore, when the pressure oil is removed, the housing 124 is urged forward by the spring member 127, and the clamp lever 1
21 rotates under its own weight and enters the unclamped state shown by the solid line.

As shown in FIG. 12, regarding the clamp device 131 according to the third modification, the clamp device 131 is installed in the accommodation portions 130 formed on the right and left sides of the main body member 51, and A single-acting hydraulic cylinder 133 oriented in the front-rear direction is incorporated in the upper part of the cylinder 132, and its piston rod 133a passes through the main body member 51 and engages the T-slot 5 in a T-shaped leg 133b formed at its rear end.
A spring member 134 made of a tension coil spring is installed in the lower part of the housing 132 between the T-shaped leg 133b and the housing 132 via a connecting member 135. It is strung up. The above clamp device 1
31, the hydraulic oil chamber 1 of the hydraulic cylinder 133
When pressure oil is supplied to 36, the housing 132 is drawn toward the panel surface 1a as shown by the imaginary line, and the application point 1 formed at the upper end of the housing 132
32a clamps the flange 5c of the stationary mold 5a, and even when pressure oil leaks, the housing 132 is urged backward by the spring member 134 to maintain a predetermined clamping force, and the pressure oil in the hydraulic oil chamber 136 is When pressure oil is supplied to the release/return hydraulic oil chamber 137, an unclamped state is achieved as shown by a solid line.

As shown in FIGS. 13 to 15, regarding the clamp device 141 according to the fourth modification, the main body member 5
A clamp device 141 is installed in the housing portion 140 formed on the left and right sides of the clamp lever 142, and the clamp lever 142 is rotatable on the main body member 51 via a support shaft 143 oriented in the left-right direction at its support portion 142a. A double-acting hydraulic cylinder 144 oriented in the longitudinal direction is incorporated in the lower part of the main body member 51, and the front end of the piston rod 144a is connected to a force point 142b formed at the lower end of the clamp lever 142.
The main body member 51 has a support spring 145 and a pressing pin 146 on the side of the hydraulic cylinder 144. A support mechanism 147 consisting of the following is incorporated. In the clamping device 141, when pressure oil is supplied to the first hydraulic oil chamber 148, the piston rod 144a is driven forward as shown by the chain line in FIG. 14, and the force point portion 142b is pressed by its front end surface. , the clamp lever 142 is the fulcrum part 142a
The flange 5c of the stationary side mold 5a is clamped by the action point 142c formed at the upper end thereof, and when pressure oil is supplied to the second hydraulic oil chamber 149, the piston rod 144a is retracted. The hook member 144b engages with the pin 142d, and the clamp lever 142 is rotated to the unclamped state shown by the solid line. Note that the clamp lever 142 is connected to the assisting mechanism 14.
7, it is always pressed toward the clamp side, and the first hydraulic oil chamber 1
Even if the supply of pressure oil to 48 is reduced, an appropriate clamping force can be maintained.

As shown in FIG. 16, in a clamping device 152 according to a fifth modification, a protrusion 150 is formed at the upper front end of the main body member 51, extending upward from the flange from the left end to the right end. Projection part 15
A single-acting hydraulic cylinder 151 oriented in the front-rear direction is incorporated in the right and left parts, and the main body member 51 and the hydraulic cylinder 151 constitute a clamping device 152, which supplies pressurized oil to the hydraulic oil chamber 153 of the hydraulic cylinder 151. Then, as shown by the chain line, the piston rod 151a protrudes toward the panel surface 1a and its front end clamps the flange 5c of the stationary mold 5a. The piston rod 151a is moved back and forth by the spring member 154, resulting in the unclamped state shown by the solid line.

Next, a modification of the main body members 51, 51A will be described. Here, the main body member 51 provided at the lower part of the fixed platen 1 will be explained.

As shown in FIGS. 17 and 18, the main body member 5
1 is composed of a pair of left and right dividing members 170, and both dividing members 170 include a pair of upper and lower pin members 171a, 1.
71b, and the lower pin member 171a is formed into a hollow pipe shape and is oil-tightly attached to the main body member 51 via a seal ring 172. The oil passages 60a are connected to each other.
In this case, since the main body member 51 can be composed of the relatively compact divided member 170, the cylinder hole 60
A. It becomes easier to process the oil passage 60a and the like into the main body member 51. A pair of guide plates 180 bent in a crank shape are fixed to the board surface 1a on both sides of the main body member 51, and guide plates 180 formed on both sides of the main body member 51 are attached to the inner end of each guide plate 180. The guide plate 180 and the guide mechanism 181 constitute a guide mechanism 55A which is inserted into the guide groove 181 and which allows the main body member 51 to move in the vertical direction and restrains the main body member 51 from moving outside the board surface 1a.

[Brief explanation of the drawing]

The drawings relate to an embodiment of the present invention, and Fig. 1 is a longitudinal sectional front view of a horizontal injection molding machine and a mold magazine, Fig. 2 is a cross-sectional view taken along the line shown in Fig. 1, and Fig. 3 is a horizontal injection molding machine and a mold magazine installed on a fixed plate. A longitudinal sectional front view of the roller clamp unit and the lifting device, FIG. 4 is a cross-sectional view taken along the line of FIG. 3, and FIGS. The third part of the lifting device related to
Figure 6 is a diagram equivalent to Figure 3 of the lifting device according to the second modification, Figure 7 is a sectional view taken along the line of Figure 6,
FIG. 8 is a diagram corresponding to FIG. 3 of the lifting device according to the third modification, FIGS. 9 to 16 are diagrams corresponding to modifications of the clamp device, and FIG. 9 is a diagram of the clamp device according to the first modification. 4 is a view corresponding to FIG. 4, FIG. 10 is a front view of a roller clamp unit incorporating a clamp device according to a second modification, and FIG. 11 is a view corresponding to FIG. 12 is a view corresponding to FIG. 4 of the clamping device according to the third modification, FIG. 13 is a front view of a roller clamp unit incorporating the clamping device according to the fourth modification, and FIG. 14 is a diagram corresponding to the fourth modification.
A view corresponding to FIG. 4 of the clamp device according to the modification, No. 1
3 is a sectional view taken along the line of FIG. 13, and FIG. 16 is a view corresponding to FIG. 4 of the clamping device according to the fifth modification.
17 and 18 relate to a modification of the main body member 51, FIG. 17 is a view corresponding to FIG. 3 of the main body member according to the modification, and FIG. 18 is a longitudinal sectional front view of the main part near the pin member. be. I...Horizontal injection molding machine, 1...Fixed plate, 1a...
...Plate surface, 2...Movable platen, 2a...Plate surface, 5...Mold, 6...Roller clamp unit, 7...Clamp unit, 8, 8A, 8B, 8C...Elevating device, 51...Main body Member, 52... idle roller,
52A...Transportation support mechanism, 53, 100, 12
3,131,141,152...clamp device,
55, 55A...Guidance mechanism.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a device for transporting a mold from the outside between a pair of mold mounting plates of a horizontal injection molding machine in a substantially horizontal direction parallel to the plate surface and fixing it to the plate surface. , An integrated main body member extending in the transport direction is provided at the bottom of the board surface of each mold mounting board so as to be movable in the vertical direction, and a transport support is provided at the upper end of the main body member to support the mold so that it can move smoothly in the transport direction. A mechanism is provided, a clamp device for fixing the mold is incorporated in the main body member, a guide mechanism is provided for guiding the main body member so as to be movable in the vertical direction and restraining movement out of the board surface, and driving the main body member up and down. An elevating mold setting device for an injection molding machine characterized by being equipped with an elevating device. (2) In a device for fixing a mold to a pair of mold mounting plates of a horizontal injection molding machine from the outside parallel to and approximately horizontally with the plate surface, the plate surface of each mold mounting plate. An integrated main body member extending in the conveyance direction is provided on the upper part of the board so as to be movable in the vertical direction, and a clamping device for fixing the mold is built into the main body member, so that the main body member is guided in a vertically movable manner and is moved out of the board surface. 1. An elevating mold setting device for an injection molding machine, characterized in that a guide mechanism for restricting movement is provided, and an elevating device for driving the main body member up and down is provided.