Cone rolling device for four-roller plate rolling machine

Abstract

The invention belongs to the technical field of plate rolling machines, and particularly relates to a cone rolling device for a four-roller plate rolling machine. The cone rolling device for the four-roller plate rolling machine comprises a lower roller and an upper roller, the lower roller is installed on a lower roller bearing seat, a plate is arranged between the lower roller and the upper roller, and the cone rolling device is characterized in that a cone rolling seat is fixed on the lower roller bearing seat, a catch wheel is installed in the cone rolling seat, a pin shaft is arranged in the center of the catch wheel in a penetrating mode, and the pin shaft is inserted into the lower roller bearing seat. The rolling device has the beneficial effects that the rolling efficiency of the conical cylinder workpiece is effectively improved, damage to the plate edge of the workpiece is reduced, safety is improved, the structure is simple, installation and use are convenient, and operation is safe and reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of plate rolling machines, and particularly relates to a coning device for a four-roll plate rolling machine. Background Art

[0002] Rolling a conical workpiece using a plate rolling machine has always been an operational problem in the industry. During the actual production process, a coning device is often required to assist in forming the cone when using a four-roll plate rolling machine. Currently, the coning devices for four-roll plate rolling machines are mainly divided into two categories: coning blocks and coning wheels. Among them, the coning blocks cause more damage to the edge of the workpiece plate than the coning wheels, and the coning blocks also have relatively large wear during use; although the coning wheels have relatively less wear, problems such as the coning wheels being easily overturned and the fixing bolts being cut off often occur when rolling large workpieces with the existing structural forms. Summary of the Invention

[0003] The present invention provides a coning device for a four-roll plate rolling machine with high rolling efficiency, safety and reliability, and high rolling accuracy and quality to make up for the deficiencies of the prior art.

[0004] The present invention is realized by the following technical solutions: A coning device for a four-roll plate rolling machine includes a lower roll and an upper roll. The lower roll is installed on a lower roll bearing seat, and a plate is provided between the lower roll and the upper roll. The feature is that a coning seat is fixed on the lower roll bearing seat, a retaining wheel is installed in the coning seat, a pin shaft passes through the center of the retaining wheel, and the pin shaft is inserted into the lower roll bearing seat.

[0005] The upper end of the pin shaft is fixed on the coning seat through a gland.

[0006] A step is provided on the lower end face of the coning seat, and the step is clamped on the end face of the lower roll bearing seat.

[0007] The beneficial effects of the present invention are: effectively improving the rolling efficiency of the conical workpiece, reducing the damage to the edge of the workpiece plate, increasing safety, having a simple structure, being convenient for installation and use, expanding the rolling range of the cone, and making the operation of the coning wheel safe and reliable due to its load-bearing structure. Brief Description of the Drawings

[0008] The following further describes the present invention with reference to the drawings.

[0009] Att Figure 1 is the front view structural schematic diagram of the present invention; Att Figure 2 is the side view structural schematic diagram of the present invention; Att Figure 3 is the top view structural schematic diagram of the present invention; Att Figure 4 is the installation structural schematic diagram of the present invention; Att Figure 5Schematic diagram of the usage state of the present invention; In the figure, 1 is the lower roll, 2 is the upper roll, 3 is the lower roll bearing seat, 4 is the sheet material, 5 is the conical roll seat, 6 is the retaining wheel, 7 is the pin shaft, 8 is the gland, and 9 is the step. Specific implementation manner

[0010] The attached drawing is a specific embodiment of the present invention. This embodiment includes a conical roll seat 5, a retaining wheel 6, a pin shaft 7 and a gland 8. The conical roll seat 5 is fixedly connected to the lower roll bearing seat 3 with screws. The retaining wheel 6 is installed in the conical roll seat 5. The pin shaft 7 passes through the center of the lower end of the retaining wheel 6 and then inserts into the lower roll bearing seat 3. The gland 8 fixes the upper end of the pin shaft 7 on the conical roll seat 5 with screws. The conical roll seat 5 is installed in the groove on the upper end face of the lower roll bearing seat 3, and part of the radial force is offset by means of the lower roll bearing seat 3. A step 9 is machined on the lower end face of the conical roll seat 5, so that the step 9 is stuck on the right end face of the lower roll bearing seat 3, and part of the axial force is offset by means of the lower roll bearing seat 3. The lower end face of the pin shaft 7 inserts into the lower roll bearing seat 3, and part of the radial force, axial force and the generated overturning moment are offset by means of the lower roll bearing seat 3. The retaining wheel 6 rotates around the pin shaft 7, and the retaining wheel 6 is quenched, reducing the damage to the plate edge during the rolling of the conical cylinder.

[0011] The conical roll device of the four-roll plate rolling machine adopting the present invention is installed on the lower roll bearing seat 3 and rises and falls synchronously with the lower roll 2, and can be adapted to the rolling of conical workpieces with various plate thicknesses and various diameters. The fan-shaped sheet material 4 to be rolled into a conical cylinder is fed between the upper roll 2 and the lower roll 1 of the four-roll plate rolling machine, and the sheet material 4 is moved so that the plate edge contacts the retaining wheel 6 of the conical roll device; the lower roll lifting oil cylinder rises, so that the upper roll 2 and the lower roll 1 of the four-roll plate rolling machine clamp the sheet material 4, and the conical roll device rises synchronously so that the retaining wheel 6 always blocks the plate edge; during the process of rolling the conical workpiece, the conical roll device is always in contact with the plate edge, assisting the four-roll plate rolling machine to complete the rolling of the conical workpiece; after the rolling is completed, the lower roll lifting oil cylinder descends, and the conical roll device descends synchronously, and the workpiece can be taken out.

Claims

1. A cone rolling device for a four-roll plate bending machine, comprising a lower roll (1) and an upper roll (2), the lower roll (1) is installed on a lower roll bearing seat (3), and a plate (4) is arranged between the lower roll (1) and the upper roll (2), and it is characterized in that: A coiling cone seat (5) is fixed on the lower roll bearing seat (3). A retaining wheel (6) is installed in the coiling cone seat (5). A pin shaft (7) passes through the center of the retaining wheel (6), and the pin shaft (7) is inserted into the lower roll bearing seat (3).

2. The conical rolling device for a four-roll plate rolling machine according to claim 1, wherein: The upper end of the pin shaft (7) is fixed on the coiling cone seat (5) through a gland (8).

3. The cone rolling device for a four-roll plate bending machine according to claim 1, characterized in that: A step (9) is provided on the lower end face of the coiling cone seat (5), and the step (9) is clamped on the end face of the lower roll bearing seat (3).

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