JPS6235527Y2 - - Google Patents

Description

Detailed Description of the Invention The present invention relates to a workpiece guiding device in a roll press device.

A flat plate or cylindrical workpiece is fed from the axial direction between a roll with a protrusion on the outer periphery and a roll with a recess on the outer periphery, and the workpiece is compressed between both rolls to form the protrusion. Conventionally, roll press apparatuses have not been provided with a guide device for feeding the workpiece between the rolls, especially a guide device for preventing the workpiece from colliding with the protrusions of the rolls. That is, in order to prevent the workpiece from colliding with the roll protrusion, the guide member must be located closer to the other roll than the outer circumferential position of the roll protrusion.
This is because the guide member and the workpiece will interfere with each other during pressing.

In view of these problems, the present invention provides a workpiece guide device for a roll press machine that can guide the workpiece so that it does not collide with the protrusion of the roll, does not interfere during pressing, and has a simple configuration. The purpose is to

In order to achieve this objective, the present invention disposes a guide ring having a truncated conical outer circumferential surface whose maximum outer diameter is larger than the outer diameter of the protrusion on one side of a roll having a protrusion on the outer periphery, The guide ring is supported by a support shaft extending from one end of the roll through a plurality of support plates made of an elastic material, and when the workpiece is fed between the rolls, the outer peripheral surface of the guide ring is used to support the guide ring. The object of the present invention is to provide a workpiece guide device that guides the workpiece so as to overcome the roll protrusion and displaces the guide ring by elastic deformation of the support plate during pressing to avoid interference with the workpiece.

An embodiment in which the present invention is applied to a press roll device for forming reinforcing protrusions on the barrel cylinder of a threshing machine will be described below with reference to the drawings. First, the overall structure of the mill cylinder and its protrusion forming roll press device will be explained. As shown in FIG.
a and 3b are overlapped, and the overlapping parts 4 are fixed by spot welding 5 located at appropriate intervals in the axial direction. An annular protrusion 6 having a cross-sectional shape as shown in the figure is press-formed for reinforcement. Roll press device 8 that performs this press forming
As shown in FIG. 3, the plow cylinder cylinder 1 is placed on a cart 9 that is disposed at one end of the base 7 and moves on the base 7 in the direction of distance with respect to the roll press device 8.
A support device 10 is installed to rotatably support. The support device 10 consists of an elevating body 11 that is raised and lowered by a cylinder device 12 in order to adjust the height according to the diameter of the cylinder 1, and a pair of support rollers 13 and 14 provided on each of the elevating bodies 11. There is. The roll press device 8 includes a drive shaft 16 extending from the main body 15 toward the center in the longitudinal direction of the base 7, a forming roll 17 provided at its free end and having a protrusion on the outer periphery, and a drive shaft 16 extending parallel to the drive shaft 16. It is equipped with an idle shaft 18 that extends to the center and is pressed downward by a rolling device 19, and a rolling roll 20 provided at its free end and having a concave portion on its outer periphery. The protrusion 6 is formed by compressing the body cylinder 1. During this forming, in order to supply the milling cylinder 1 between the forming roll 17 and the reduction roll 20, the cart 9 is moved toward the roll press device 8. If the milling cylinder 1 is a perfect circle, as shown in FIG. As shown by the solid line, both rolls 1
7 and 20, but if it is oval, one end of it collides with the roll 17 or 20 as shown by the imaginary line, making it impossible to supply it smoothly. Therefore, as shown in FIG. 5, on one side of the forming roll 17 having a protrusion,
A guide ring 21 having a truncated conical outer peripheral surface 22 whose maximum outer diameter is larger than the outer diameter of the protrusion is disposed, and the guide ring 21 is supported by two support plates 23 made of an elastic material such as a rubber plate. The forming roll 17 is supported by a support shaft 24 extending from one end of the forming roll 17, and a guide device consisting of the guide ring 21, support plate 23, and support shaft 24 is attached. As shown in FIG. 7, the support plate 23 has a through hole 25 for the support shaft 24 formed in the center of the disk-shaped rubber plate, and openings 26 at multiple locations in the circumferential direction to form a radial direction. This allows for a large amount of deformation. Then, the outer periphery of the support plate 23 is connected to the guide ring 2.
The forming roller 17 and the support plate 2
3, between the support plates 23, 23, and between the support plate 23 and the auxiliary guide member 27 fixed to the free end of the support shaft 24. 21 is positioned and held. The auxiliary guide member 27 has a frustoconical outer circumferential surface 29 that is continuous with the outer circumferential surface of the guide ring 21, and its maximum outer diameter is smaller than the outer diameter of the forming roll 17. Reference numeral 30 denotes a guide member having a truncated conical outer circumferential surface 31 fixed to one end of the reduction roll 20.

In the above configuration, when the plow cylinder cylinder 1 is placed on the support device 10 and the cart 9 is moved toward the roll press device 9, even if the plow cylinder cylinder 1 is ovalized, one end of the plow cylinder 1 is attached to the forming roll. Guided by the outer circumferential surface 29 of the auxiliary guide member 27 on the 17 side and the outer circumferential surface 22 of the guide ring 21, or the outer circumferential surface 31 of the guide member 30 on the reduction roll 20 side, the mill cylinder 1 smoothly moves between the forming roll 17 and the reduction roll. Supplied between 20 and 20 minutes. When the plow cylinder cylinder 1 moves to a predetermined position, the cart 9 stops moving, the drive shaft 16 is driven to rotate, and the free rotating shaft 18 is pushed down by the lowering device 19, as shown in FIG. 1 is pressed between a forming roll 17 and a reduction roll 20,
A protrusion 6 is formed on the cylindrical plow barrel 1 between the protrusion and the recess, and as the rolls 17 and 20 rotate, the protrusion 6 is formed around the entire periphery of the cylindrical plow barrel 1. During this press forming, the plow barrel cylinder 1 is pressed against the outer circumferential surface of the forming roller 17, so a downward force acts on the guide ring 21, so that the support plate 23 is deformed and the guide ring 21 is pushed down.
1 is displaced until its maximum outer diameter position is the same as the outer periphery of the forming roller 17. In this way, the guide ring 21
Even if the protrusion 6 is provided, the protrusion 6 can be formed without any problem.

According to the workpiece guide device of the roll press apparatus of the present invention, as is clear from the above description, the guide ring having the truncated conical outer peripheral surface is connected from one end of the roll through a plurality of support plates made of an elastic material. Since it is supported by an extended support shaft, the workpiece can be guided on the outer circumferential surface of the guide ring to prevent it from colliding with the protrusion, and the displacement of the guide ring during pressing prevents the workpiece from colliding with the guide ring. No interference. In addition, since the guide ring is supported by multiple support plates, the guide ring can be stably held while allowing large displacements without compromising the guiding function.Moreover, the structure is simple and can be attached to the roll at low cost. .

[Brief explanation of drawings]

Figure 1 is a perspective view of the plow cylinder, Figure 2 is a sectional view taken along the - arrow in Figure 1, Figure 3 is an overall front view of the roll press, and Figure 4 is a front view of the main parts of a conventional roll press. Figure 5 is a partial cross-sectional front view of the main parts of a roll press device equipped with a guide device according to the present invention; Figure 6 is a partial cross-sectional front view similar to Figure 5 showing the state during pressing; The figure is a perspective view of the support plate. DESCRIPTION OF SYMBOLS 1... Throttle barrel cylinder, 6... Protrusion, 8... Roll press device, 17... Forming roll, 20... Reduction roll, 21... Guide ring, 22... Frame-shaped outer circumferential surface, 23... Support plate, 24... support shaft.

Claims (1)

[Scope of utility model registration request] A guide ring having a truncated conical outer circumference whose maximum outer diameter is larger than the outer diameter of the protrusion is disposed on one side of the roll having a protrusion on the outer periphery, and the guide ring is supported by a plurality of sheets made of an elastic material. A workpiece guide device for a roll press machine, characterized in that the workpiece guide device is supported by a support shaft extending from one end of the roll via a plate.