Expansion cone mechanism

Abstract

The invention provides a cone expanding mechanism which can adapt to various sizes in a certain aperture range for cone expanding operation, the adaptation universality of a single cone expanding mechanism is improved, the time for switching and assembling the cone expanding mechanism is shortened, and the production precision of a production line is ensured. The device comprises: a vertical support; a transverse mounting seat; the plurality of expansion cone rows are annularly distributed, and at least comprise four same expansion cone rows; a central driving rod; the cam driving mechanism comprises a servo power assembly and a cam; a pressing rod assembly is driven; and the upper expansion taper sleeve and the lower expansion taper sleeve are respectively provided with expansion taper guide surfaces which radially expand outwards from bottom to top.

Claims

1. A cone expansion mechanism, characterized in that: It includes: Vertical stand; Horizontal mounting seat; A plurality of expansion cone rows of the ring cloth, which are composed of at least four identical expansion cone rows; Center drive rod; A cam driving mechanism, comprising a servo power assembly and a cam; Actuating the compression rod assembly; and an ascending cone sleeve and a descending cone sleeve, each of which is provided with an ascending cone guide surface that expands radially outward from bottom to top; A transverse mounting seat is provided on the top of the vertical bracket, and a cam driving mechanism is provided on the transverse mounting seat, the top of the center driving rod is located in the transverse mounting seat, the outer peripheral surface of the cam is pressed on the driving pressure rod assembly, and then the pressing stroke is applied to the top of the center driving rod, and the lower end of the center driving rod penetrates into the central cavity of a plurality of circular expansion cone rows, and the center driving rod is respectively provided with a rising cone sleeve and a lower rising cone sleeve corresponding to the upper space and the lower space of the expansion cone row, and each group of expansion cone rows is respectively provided with an expansion cone guide wheel corresponding to the position of the expansion cone guide surface of the rising cone sleeve and the lower expansion cone sleeve, and the servo power assembly drives the cam to rotate to different angles, and then switches the expansion cone guide surface height corresponding position of the rising cone sleeve and the lower expansion cone sleeve to fit the corresponding expansion cone guide wheel, thereby driving the outward expansion aperture of the expansion cone row.

2. The expansion cone mechanism according to claim 1, characterized in that: The driving pressure rod assembly includes a connecting rod, a first pivotal fulcrum, an active pressure wheel, and a driven pressure wheel. One end of the connecting rod in the length direction is connected to the side plate of the horizontal mounting seat through the first pivotal fulcrum. The driven pressure wheel is installed at the center driving of the connecting rod in the length direction, and the active pressure wheel is installed at the other end of the connecting rod in the length direction. The cam is located in the inner cavity of the horizontal mounting seat, and the outer periphery of the cam is pressed against the active pressure wheel. The outer periphery of the cam is pressed against the active pressure wheel, thereby driving the driven pressure wheel to press against the top of the central driving rod to perform a descending action.

3. The expansion cone mechanism according to claim 2, characterized in that: The driving pressure rod assembly also includes a limiting connecting rod, the top of which is connected to the piston end of the telescopic cylinder, the cylinder body of the telescopic cylinder is pivotally connected to the top lower convex seat body of the transverse mounting seat, and the bottom of the limiting connecting rod is pivotally connected to the connecting rod at a lengthwise position between the first pivot fulcrum and the driven pressure wheel.

4. The expansion cone mechanism according to claim 1, characterized in that: The central driving rod is also fixedly sleeved with a reset connecting plate, which is arranged horizontally and has two sides that protrude from the side plates of the transverse mounting seat respectively. The bottom plate of the transverse mounting seat is provided with reset springs at positions corresponding to the reset connecting plate. The top of the reset spring is mounted on the lower surface of the reset connecting plate, and the reset springs on both sides are identical linear springs.

5. The expansion cone mechanism according to claim 4, characterized in that: A side convex guide block is also provided at the end of the reset connecting plate in the length direction, a linear pressure cylinder seat is fixedly provided on the bottom plate, the lifting end of the linear pressure cylinder is convex and closely attached to the downward pressing surface of the side convex guide block, and the linear pressure cylinders on both sides are the same pressure cylinders.

6. The expansion cone mechanism according to claim 4, characterized in that: A track retaining block is fixedly provided at the lower part of the base plate, and a linear outward expansion track is respectively provided in the track retaining block corresponding to the top of each expansion cone row, and a guide support wheel is respectively provided on the top of each expansion cone row, and the guide support wheel is arranged in the linear outward expansion track.

7. The expansion cone mechanism according to claim 4, characterized in that: A guide sleeve is fixedly provided at the lower part of the bottom plate corresponding to the position of the central driving rod, and the guide sleeve includes a guide cavity for penetrating the central driving rod.

8. The expansion cone mechanism according to claim 1, characterized in that: The central driving rod is provided with a stop and limit ring and a locking external thread corresponding to the rising cone sleeve. The rising cone sleeve is sleeved on the stop and limit ring from bottom to top, and is threadedly locked by a locking nut and a locking external thread so that the locking nut is tightly attached to the lower surface of the rising cone sleeve to complete the assembly of the rising cone sleeve.

9. The expansion cone mechanism according to claim 1, characterized in that: The central driving rod is a hollow rod, and an internal threaded hole is provided at the bottom of the central driving rod corresponding to the lower expansion cone sleeve. The lower expansion cone sleeve is reliably fastened to the lower end of the central driving rod through a locking mounting piece.

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