Inverted wire drawing machine double-roll type silk pressing device
Technical field: the utility model relates to the thread pressing roller device that a kind of inverted wire drawing machine is used.
Background technology: inverted wire drawing machine is when work, there is the wire rod of a fixing turn should be close to mandrel surface, so that the tractive force that can provide drawing to use, because of inverted reel has certain tapering, for wire rod is close to mandrel surface, must be provided with the silk pressing device.At present on inverted wire drawing machine, generally the silk pressing device of Cai Yonging is single roll-in silk device, this structure is comparatively simple, but owing to only be that single roll-in is tight during silk pressing, it is that single line contacts that wire rod is pressed on the reel, in use have the phenomenon of pine silk, make troubles to operation, and the deformability of thread pressing roller is relatively poor, in some cases, can stop the position of suture introducing forcep, make troubles to operating personnel.
Summary of the invention: in order to solve the problem that above-mentioned prior art exists, the double-roll type silk pressing device that the utility model provides a kind of inverted wire drawing machine to use.
The technical scheme that the utility model is taked is as follows.
Inverted wire drawing machine double-roll type silk pressing device is made up of the cylinder that the thread pressing roller active force is provided and pivoted arm and Wirewinding roller that can freely rotate, and it comprises that a setting is fixed on the bearing on the frame and is installed on pivoted arm on the bearing; One end of pivoted arm is provided with a pair of thread pressing roller, and thread pressing roller is installed on the rotor plate of a spacing rotation of energy; The other end of pivoted arm then connects the cylinder that pressure is provided; This double-roll type silk pressing device is symmetrically distributed in the reel both sides.
The beneficial effects of the utility model are, thread pressing roller contact with reel for two sides contact can make wire rod tighter be pressed in mandrel surface, and that entire mechanism is moved in the course of the work is succinct, safe and reliable, overall structure simple, processing, assembling easily, need not during work to adjust again and can satisfy production requirement.
Further set forth the utility model content below in conjunction with drawings and Examples.
Description of drawings: Fig. 1 is a monolateral pair of roll-in silk device working state schematic representation;
Fig. 2 is a bilateral pair of roll-in silk device working state schematic representation;
Fig. 3 is a monolateral pair of roll-in silk device off working state schematic diagram.
Number in the figure is: 1-cylinder, 2-bearing, 3-pivoted arm, 4-rotor plate, 5-thread pressing roller.
The specific embodiment: as shown in the figure, the utility model comprises that a setting is fixed on the bearing 2 on the frame and is installed on pivoted arm 3 on the bearing; One end of pivoted arm 3 is provided with a pair of thread pressing roller 5, and thread pressing roller 5 is installed on the rotor plate 4 of a spacing rotation of energy; The other end of pivoted arm 3 then connects the cylinder 1 that pressure is provided; This double-roll type silk pressing device is symmetrically distributed in the reel both sides.
The utility model provides pressure by cylinder 1, by lever principle a pair of thread pressing roller at an angle to each other 5 is pressed onto mandrel surface.One end of pivoted arm 3 is provided with a pair of thread pressing roller 5, and the other end is made as provides the cylinder 1 of thread pressing roller 5 being close to mandrel surface.Two thread pressing rollers 5 are installed on the rotor plate 4, rotor plate 4 is provided with a stopper slot, only allow rotor plate 4 to rotate along the positive veer of reel, and do not allow along the reel reverse directions to rotate, this just makes in the long-pending line process of reel, when suture introducing forcep was run into thread pressing roller 5, thread pressing roller 5 can be made a concession voluntarily, can abdicate the space that the suture introducing forcep ledge turns over.And when cylinder 1 is exerted oneself two roll-ins in mandrel surface, also because this feature of rotor plate 4, can make that thread pressing roller 5 that at first contacts reel produce reaction force, force another thread pressing roller 5, be close to mandrel surface, finally then be that two thread pressing rollers 5 all are forced into mandrel surface, thereby reach the purpose that makes thread pressing roller 5 be close to mandrel surface.
As Fig. 1, be the duty of monolateral pair of roll-in silk device, cylinder 1 is for stretching out state, and this moment, cylinder 1 was pressed in mandrel surface with two thread pressing rollers 5, had in mandrel surface under the situation of wire rod, and thread pressing roller 5 can be pressed on mandrel surface with wire rod.As shown in Figure 2, the position of symmetry is provided with two silk pressing devices, has just guaranteed that the wire rod of certain volume number can be close to mandrel surface, thereby has realized the function of this double-roll type silk pressing device.As Fig. 3, the utility model is under off working state, cylinder 1 is a contraction state, thread pressing roller 5 leaves mandrel surface, is free state, and this moment, thread pressing roller 5 can be driven by rotor plate 4, in suitable angle, rotate, when suture introducing forcep was run into a thread pressing roller 5, thread pressing roller 5 can be made corresponding yielding, so that suture introducing forcep is passed through.