JPH039863Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a mold transfer device that has a workbench disposed close to a molding press and that transfers a mold between the molding press and the workbench.

(Prior Art) Conventionally, there have been the following types of transfer devices of this type.

Utility Model No. 56-23217 (Figure 4).

This is because the transfer path 102 is formed across both the molding press 100 and the workbench 101.
A large number of rollers 104 having a length corresponding to the width of the mold 103 are arranged perpendicularly to the mold 103.
A mold 103 is placed on the mold 103 and transferred between the molding press 100 and the workbench 101.

Japanese Patent Publication No. 55-57328 (Figure 5).

In this method, rollers 204 are separately formed on both sides of a transfer path 203 formed between forming presses 200, and a forming die 205 is placed on the rollers 204 and transferred by a cylinder 206 of a cart 208. .

(Problems to be Solved by the Invention) However, the above conventional example had the following problems.

Conventional example.

(a) Since the mold 103 is simply placed on the roller 104 and transported, the mold 103 may be misaligned in the lateral direction (direction perpendicular to the transport), making it difficult to accurately position the mold press 100 at a predetermined position. Rapid transfer is inhibited.

(b) The heating platen (not shown) must be slid and guided at four locations on the side plate of the press, so if the molding press is of the type where the molded product is obtained by lifting the rollers from below, the rollers 104 and the side plate to which the rollers are attached will get in the way. It becomes impossible to raise the heating plate. Therefore, in this case, the molding must be performed at a position where the rollers 104 are not present, making transportation difficult.

(c) Since the roller 104 has a length equivalent to the width of the mold 103 (length in the direction perpendicular to the transport direction), it will tilt if a thermally deformed mold support plate or a mold with an uneven bottom is placed on it. Transfer cannot be carried out smoothly.

Conventional example.

Similar to the conventional example (a) in (d), the mold 2 is placed on the roller 204 via the adapter plate 201.
There is a problem that 05 is misaligned in the lateral direction.

(e) Since the rollers 204 are arranged separately across the transfer path 203, the problems in (b) and (c) above do not occur, but the shaft (not shown) that supported the rollers 204 pinches the rollers 204. Since it is fixed to a pair of support plates 207 provided by
Another problem is that the equipment increases in the direction perpendicular to the transport. This problem is particularly noticeable on the forming press 200 side where the hot platen for forming is raised from below the roller.

This idea is to solve the above problem,
Not only can the mold to be transferred be prevented from shifting laterally on the rollers, but also thermally deformed mold support plates or molds with uneven bottom surfaces can be transferred, and the device becomes larger in both the transport direction and the lateral direction. The object of the present invention is to provide a mold transfer device for a molding press that will never cause problems.

(Means for Solving the Problems) In order to achieve the above object, this invention consists of mutually protruding pieces that are dotted and fixed along the mold movement direction on substantially parallel both side walls of a molding press and a work table that are arranged close to each other. The roller has a supporting shaft, and includes a roller portion that is rotatably attached to the cantilever shaft and protrudes from each other, and an annular protruding portion for linearly guiding the mold formed on the side wall side of the roller portion. The apparatus further includes a roller driving means for driving the roller.

(Function) In this invention based on the above-mentioned configuration, the mold that is transferred between the parallel side walls is linearly guided on both sides by the annular protrusion of the roller, and its lateral position is regulated. Furthermore, sufficient space is ensured between the rollers mounted on the cantilever shafts of the side walls.

(Example) The present invention will be explained below based on the illustrated example. In FIGS. 1 to 3 showing a mold transfer device for a molding press according to the present invention, 1 indicates a molding press, and 2 is a device disposed at the front of the molding press 1 in close proximity to the molding press 1. It is a workbench. The forming press 1 includes a press cylinder 4 to which a lower heating plate 3 (movable side) is attached, and a head part 6 to which an upper heating plate 5 (fixed side) is attached, which is arranged at a distance above the press cylinder 4. The head part 6 is attached to both left and right sides of the press cylinder 4 and is connected to the press cylinder 4 by side walls 7, 7 rising upward.
is connected to. The side walls 7, 7 are parallel to each other,
A mold 8 is installed between the left and right side walls 7, 7 and between the lower heating plate 3 and the upper heating plate 5. The mold 8 has bearings 9a on cantilever shafts 9, which are dotted and fixed on the opposing surfaces of the side walls 7, 7 along the direction of mold movement.
Rollers 10, rotatably mounted via...
It is supported only on the bottom surface of both ends (the third
Figure) Bearings 9 are installed on the cantilever shafts 9,...
The sprocket 11 is attached toward the side walls 7 through b. Then, the boss portion 11a of the sprocket 11 is fitted to the inner circumference of the roller 10,
The roller 10 and sprocket 11 are integrally connected by a pin 11b. On the outer circumferential surface of the roller 10 on the sprocket 11 side, there are formed an annular protrusion 10a for linear guide that protrudes outward in the radial direction, and a rubber roller portion 10b.

On the other hand, side walls 2 projecting upward and extending parallel to each other in the front-rear direction of the forming press 1 are disposed on the workbench 2.
a, 2a are formed. The distance between the side walls 2a, 2a is the same as the distance between the side walls 7, 7 of the forming press 1, forming a transfer path A. A molding press 1 is also installed on the opposing surfaces of both side walls 2a, 2a on the workbench 2.
Similarly to the side walls 7, 7, rollers 10, . . . are disposed horizontally via a cantilever shaft 9. Roller 1 arranged on forming press 1 and workbench 2
0, . . . all have the same diameter, and the diameter and number of teeth of the sprockets 11 are also the same. Further, at the rear of the forming press 1, pillow blocks 7a, 7b are attached to both side walls 7, 7, and a bracket 7c is attached to one side wall 7. Furthermore, both pillow blocks 7a, 7
A drive shaft 12 is supported on b, and a drive motor 13 and a coupling 12 attached to a bracket 7c are supported.
They are connected via a. Further, drive sprockets 14, 14 are respectively attached to the drive shaft 12 at positions colinear with the arrangement of the left and right rollers 10, . In this embodiment, a hydraulic motor is used as the drive motor 13. Rollers 10, ... and drive sprocket 1 arranged on the left and right
4 and 14 have idler sprocket 1 respectively.
Chains 16, 16 are suspended through rollers 10, 5, . . . , and the rollers 10, . . . rotate synchronously in the same direction.

Next, the operation of the embodiment will be explained. First, when transferring the mold 8 from the molding press 1 onto the workbench 2, when the drive motor 13 is turned on, the drive shaft 12
rotates, and the drive sprockets 14, 14 fixed to the drive shaft 12 rotate. Drive sprocket 1
By rotations 4 and 14, chain 1 on both the left and right sides
6 and 16 are rotated, and the sprockets 11, ... of each roller 10, ... are rotated, and each sprocket 11, ... is rotated.
The rollers 10, . . . are rotated via the rollers 10, . Due to the rotation of the roller 10, the mold 8 placed on the roller 10 (more precisely, the roller portion 10b),... is rotated by the roller 1.
Due to the frictional force between
When the motor reaches the predetermined position, the drive motor 13 is stopped. During this transfer, the annular protrusion 10a of the roller 10 comes into contact with both side surfaces of the mold 8 parallel to the transfer direction and guides the mold 8 straight, so that no lateral displacement of the mold 8 occurs. Transfer can be performed accurately.

When replacing the mold 8 on the workbench 2, the new mold 8 is placed on the workbench 2 with the old mold 8 facing down. Furthermore, when the mold 8 is transferred from the workbench 2 to the molding press 1, the drive motor 13 is reversed, and each roller 10, . . . is reversely rotated.

Here, if the height positions of the rollers 10,... on the molding press 1 and the rollers 10,... on the workbench 2 are different, and the tip of the mold 8 hits the rollers 10,..., etc. Also, since the rollers 10 are forcibly driven, the mold 8 is smoothly transferred.

Further, the roller 10 is connected to both side walls 2 across the transfer path A.
a, 7, only the bottom surfaces of both ends of the mold 8 are supported by the rollers 10, and the rollers support the mold support plates that have been thermally deformed due to heating during vulcanization or the molds with uneven bottom surfaces. 10, it can be transferred without tilting. Furthermore, on the forming press 1 side, the rising lower heating platen 3 must be slid and guided at four places on the press side plate, but since the roller 10 does not have a side plate, it does not get in the way when the lower heating platen rises, and the forming press 1 does not become large in length in the transport direction. Furthermore, since the roller 10 is fixed to its cantilever shaft 9, there is no side plate to support the roller, and the device does not become larger in the lateral direction, that is, in the direction orthogonal to the transport direction.

(Effects of the invention) Since this invention is constructed as described above, the annular protrusion of the roller contacts both sides of the mold parallel to the transfer direction and guides the mold in a straight line. No lateral positional deviation occurs and accurate transfer is possible.

In addition, since the rollers are arranged to protrude from both side walls, only the bottom surfaces at both ends of the mold are supported by the rollers, and a thermally deformed mold support plate or a mold with an uneven bottom surface is placed on the rollers. It can be transported without tilting. Furthermore, on the forming press side, since the rising of the lower heating platen is not obstructed by the rollers or roller supporting side plates, the length of the forming press in the transfer direction does not become large. Furthermore,
Since this roller has a fixed cantilever shaft,
Various excellent effects are achieved in that the device does not become larger in the lateral direction, that is, in the direction perpendicular to the transport direction.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway schematic side view showing a molding press and a workbench in which a mold transfer device for a molding press according to an embodiment of the present invention is used, and FIG. 2 is a cross-sectional view taken along the line -- of the device shown in FIG. 1. 3 are enlarged side sectional views of the rollers of the apparatus shown in FIG. 1, and FIGS. 4 and 5 are side and plan views showing a mold transfer device of a conventional molding press. Explanation of symbols, 1... Forming press, 2... Working table, 8... Forming mold, 9... Cantilever shaft, 10a... Annular protrusion, 2a, 7... Side wall, 10b... Roller part, 10 ……roller.

Claims (1)

[Scope of utility model registration request] The molding press and the workbench are arranged in close proximity to each other, and have mutually protruding cantilever shafts which are dotted and fixed on substantially parallel side walls along the direction of mold movement, and which are rotatably attached to the cantilever shafts so that the two cantilever shafts are rotatably attached to each other. A mold transfer device for a molding press having a roller including a protruding roller part and an annular protrusion for linearly guiding a mold formed on the side wall side of the roller part, and having a roller driving means for driving the roller. .