CN205735052U - A kind of electric shear - Google Patents

Abstract

The utility model discloses a kind of electric shear, including shell, top cutter and bottom knife；Top cutter is relative with bottom knife blade, and middle part is hinged by rotating shaft, and rotating shaft is fixed on shell, and the afterbody of top cutter is hinged to drive mechanism by lower linking arm, and the afterbody of bottom knife is hinged to drive mechanism by upper linking arm；Also including reduction gearing and connecting rod, reduction gearing is fixedly attached on shell and by driving motor to drive, and is fixedly installed eccentric cylinder at reduction gearing disalignment, and eccentric cylinder is hinged with one end of connecting rod, and the other end of connecting rod is hinged to drive mechanism.This utility model simple in construction, easy to use, the working strength of operator can be substantially reduced, work efficiency is high.

Description

electric scissors

technical field

The utility model relates to an electric scissors.

Background technique

At present, most of the scissors used by tailors or barbers are manual. When using them, the two blades need to be opened and closed by opening and closing the thumb and other fingers, and the work intensity is extremely high. And it is necessary to apply a corresponding grip force according to the thickness or quantity of the items to be cut, coupled with the continuous and frequent operations brought by the amount of cutting, it is easy to cause fatigue of the fingers, and the work efficiency is also very low.

Utility model content

According to the problems mentioned above, the object of the present invention is to provide a kind of electric scissors which is easy to operate and has high working efficiency. The technical scheme is as follows:

An electric scissors, comprising a casing, an upper blade and a lower blade; the blades of the upper blade and the lower blade are opposite, and the middle part is hinged by a rotating shaft, the rotating shaft is fixed on the casing, the tail of the upper blade is hinged to the transmission mechanism through the lower connecting arm, and the The tail part is hinged to the transmission mechanism through the upper connecting arm; it also includes a reduction gear and a connecting rod. One end is hinged, and the other end of the connecting rod is hinged to the transmission mechanism.

Further, the transmission mechanism includes a connecting block and a sliding block, the connecting block and the sliding block are arranged in the guide rail and connected by a tension spring; the connecting block is hinged to the lower connecting arm and the upper connecting arm; one side of the sliding block is fixed A slider connecting rod is connected, and the end of the slider connecting rod is hinged to the connecting rod.

Further, it also includes a strain gauge and a control circuit; the strain gauge is arranged on the guide rail, and is used to convert the deformation caused by the movement of the connecting block into an electrical signal and send it to the control circuit, and the control circuit is also connected to the driving motor.

Furthermore, a compression spring is provided between the upper blade and the casing, and the compression spring is sleeved on the rotating shaft.

The beneficial effects of the utility model are: the utility model is simple in structure, easy to use, can greatly reduce the work intensity of the operator, and has high work efficiency; the tension spring is used as a buffer, which can further protect the safety of the motor, gears and operators; The strain gauge and the control circuit adjust the working state of the scissors, which can be applied to more working conditions.

Description of drawings

Fig. 1 is the structural representation of electric scissors of the present utility model.

In the figure: 1-upper blade; 2-lower blade; 3-shell; 4-upper connecting arm; 5-connection block; 6-tension spring; 7-connecting rod; 8-drive motor; 9-rotating shaft; Lower connecting arm; 11-slider; 12-slider connecting rod; 13-eccentric cylinder; 14-reduction gear; 15-guide rail.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further. As shown in Figure 1, a kind of electric scissors is characterized in that, comprises housing 3, upper blade 1 and lower blade 2; Above, the tail of the upper blade 1 is hinged to the transmission mechanism through the lower connecting arm 10, and the tail of the lower blade 2 is hinged to the transmission mechanism through the upper connecting arm 4; it also includes a reduction gear 14 and a connecting rod 7, and the reduction gear 14 is fixedly connected to the casing 3 It is driven by the driving motor 8, and the reduction gear 14 is fixedly provided with an eccentric cylinder 13 away from the axis. The eccentric cylinder 13 is hinged to one end of the connecting rod 7, and the other end of the connecting rod 7 is hinged to the transmission mechanism.

A compression spring is also provided between the upper blade 1 and the housing 3 of this embodiment, and the compression spring is sleeved on the rotating shaft 9, and the compression spring sleeve is used to provide the required compression force between the two scissor blades to improve the cutting quality . The driving motor is fixed on the casing, the driving gear of the driving motor 8 meshes with the reduction gear 14, the driving gear drives the reduction gear to rotate freely around the axis, and the reduction gear is a crown tooth to achieve the purpose of deceleration and reversing; the eccentric cylinder 13 on the reduction gear , The eccentricity is adjustable during manufacture to achieve different opening angles of the scissor blades to adapt to different working conditions. One end of the connecting rod 7 rotates around the axis of the reduction gear 14 with the eccentric cylinder 13, thereby driving the transmission mechanism to reciprocate left and right, and then driving the opening and closing of the upper blade 1 and the lower blade 2, imitating manual operation.

The transmission mechanism of this embodiment includes a connecting block 5 and a slide block 11, the connecting block 5 and the sliding block 11 are arranged in the guide rail 15 and connected by the tension spring 6; the connecting block 5 is connected to the lower connecting arm 10 and the upper connecting arm 4 hinged; one side of the slider 11 is fixedly connected with a slider connecting rod 12, and the end 12 of the slider connecting rod is hinged to the connecting rod 7.

There is a small hole on the slider 11, which provides the installation position of the tension spring 6; the tension spring 6 can play the role of providing pre-tightening force, when the scissors are closed, the tension spring 6 is in a stretched state , when in use, if misoperation, a certain amount of energy can be absorbed by the tension and compression of the tension spring, that is, when the scissor blade is accidentally fixed, the drive motor can also drive the reduction gear to rotate, which protects the motor, gear and User safety.

This embodiment also includes a strain gauge and a control circuit; the strain gauge is arranged on the guide rail 15, and is used to convert the deformation caused by the movement of the connecting block 5 into an electrical signal and send it to the control circuit, and the control circuit is also connected to the drive motor 8 , the control circuit controls the operation of the reduction gear by driving the motor, and then adjusts the working state of the scissors to apply to more working conditions. For example, control the reduction gear to run for one week to realize one cutting, and run it for two weeks to realize two cuts, or control the reduction gear to run continuously to realize continuous cutting.

Working process: After the power is turned on, the drive motor drives the reduction gear to rotate around its axis, the reduction gear drives the connecting rod to move in a plane, and the connecting rod pushes the slider to drive the connecting block to reciprocate in the guide rail, that is, under the action of the connecting rod, the sliding The block, the tension spring, and the connecting block all reciprocate; the connecting block then pushes the upper and lower connecting arms, and the connecting arm drives the scissor blades, which realizes the cutting action of the scissors constantly opening and closing.

Claims (4)

1. an electric shear, it is characterised in that include shell (3), top cutter (1) and bottom knife (2)；Top cutter (1) and under Blade (2) blade is relative, and middle part is hinged by rotating shaft (9), and rotating shaft (9) is fixed on shell (3), the afterbody of top cutter (1) Being hinged to drive mechanism by lower linking arm (10), the afterbody of bottom knife (2) is hinged to drive mechanism by upper linking arm (4)； Also including reduction gearing (14) and connecting rod (7), reduction gearing (14) is fixedly attached to shell (3) and above and is driven by driving motor (8) Dynamic, and at reduction gearing (14) disalignment, it is fixedly installed eccentric cylinder (13), eccentric cylinder (13) and one end of connecting rod (7) Hinged, the other end of connecting rod (7) is hinged to drive mechanism.

Electric shear the most according to claim 1, it is characterised in that described drive mechanism includes contiguous block (5) and slide block (11), contiguous block (5) and slide block (11) are arranged in guided way (15) and are connected by tensioning spring (6)；Contiguous block (5) and institute State lower linking arm (10) and upper linking arm (4) is hinged；Slide block (11) side is fixedly connected with slide block connecting rod (12), and slide block connects Bar (12) end is hinged to connecting rod (7).

Electric shear the most according to claim 2, it is characterised in that also include foil gauge and control circuit；Foil gauge sets Put on guided way (15), be sent to control circuit for the deformation that contiguous block (5) motion brings is converted to the signal of telecommunication, described Control circuit is also connected to drive motor (8).

Electric shear the most according to claim 1, it is characterised in that be additionally provided with between described top cutter (1) and shell (3) Holddown spring, and holddown spring is sleeved in rotating shaft (9).