CN216817961U - Stranding machine - Google Patents

Abstract

The utility model belongs to the technical field of mechanical equipment, and discloses a wire twisting machine which comprises a supporting mechanism, a translation mechanism, a transmission mechanism and a wire twisting mechanism, wherein the translation mechanism is arranged on the supporting mechanism in a sliding manner along a first direction. The transmission mechanism comprises a support, a screw rod and a sleeve in threaded connection with the screw rod, the support is connected to the translation mechanism, a first driving piece is arranged on the support, the screw rod is installed on the support in a rotating mode and is connected to the output end of the first driving piece, the screw rod can be driven by the first driving piece to rotate along the axis of the screw rod, the axial direction of the screw is parallel to the second direction, the second direction is the height direction of the supporting mechanism, and the first direction is perpendicular to the second direction. The wire twisting mechanism comprises a bearing seat, a rotating shaft and clamping jaws, the bearing seat is connected to the sleeve, the rotating shaft is rotatably arranged on the bearing seat, and the clamping jaws are detachably connected to the rotating shaft and configured to clamp a wire. The wire stranding machine disclosed by the utility model can accurately regulate and control the clamping jaws to clamp the wire, is flexible and reliable in operation, and simultaneously saves the transverse space occupied by the wire stranding machine.

Description

Stranding machine

Technical Field

The utility model relates to the technical field of mechanical equipment, in particular to a stranding machine.

Background

The stranding machine is a mechanical device for stranding various wires, and can twist a plurality of single conductors into one strand to meet the processing technological requirements of the wires. Because the stranding machine needs to be composed of a plurality of parts such as rotating electrical machines, transmission shafts, clamping jaw cylinders, clamping plates and supporting frames, the existing stranding machine is complicated to operate and large in size, flexible operation and accurate clamping of wires and equipment occupation space saving cannot be taken into consideration, and the stranding machine cannot be suitable for processing places with limited space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a stranding machine, which can accurately regulate and control clamping jaws to clamp wires and save the transverse space occupied by the stranding machine.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a wire twisting machine comprising:

a support mechanism;

the translation mechanism is arranged on the supporting mechanism in a sliding mode along a first direction, and the first direction is perpendicular to the height direction of the supporting mechanism;

the transmission mechanism comprises a support, a screw rod and a sleeve which is in threaded connection with the screw rod, the support is connected to the translation mechanism, a first driving piece is arranged on the support, the screw rod is rotatably installed on the support and is connected to the output end of the first driving piece, the screw rod can be driven by the first driving piece to rotate along the axis of the screw rod, and the axis direction of the screw rod is parallel to the height direction of the support mechanism;

the wire twisting mechanism comprises a bearing seat, a rotating shaft and clamping jaws, wherein the bearing seat is connected with the sleeve, the rotating shaft is rotatably arranged on the bearing seat, and the clamping jaws can be detachably connected with the rotating shaft and are configured to clamp wires.

Preferably, the clamping jaw includes first splint and second splint of mutual articulated, the one end of first splint can be dismantled connect in the pivot, and the other end can be dismantled and be provided with first grip block, the one end of second splint with press from both sides between the first splint and be equipped with the elastic component, the other end can be dismantled and be provided with the second grip block, the elastic component is configured to the drive the second grip block support press in order to press from both sides tightly on the first grip block the wire rod.

Preferably, the first clamping plate is provided with a hinged support, the middle part of the second clamping plate is hinged to the hinged support, and the elastic part and the first clamping block are respectively positioned on two sides of the hinged support.

Preferably, the wire twisting mechanism further comprises an air cylinder and a push block connected to the output end of the air cylinder, the air cylinder is connected to the sleeve, the push block is located on one side, away from the first clamping plate, of the second clamping plate, and the push block can be driven by the air cylinder to abut against the second clamping plate, so that the second clamping block is far away from the first clamping block.

Preferably, a second driving element is arranged on the supporting mechanism, the translation mechanism comprises a first sliding block and a connecting plate which are connected with each other, the connecting plate is connected to an output end of the second driving element, the first sliding block is arranged on the supporting mechanism in a sliding mode along the first direction, and the bracket is connected to the connecting plate.

Preferably, the support mechanism includes a vertical column and a support arm perpendicular to each other, the support arm is disposed at one end of the vertical column, and the first slider is slidably disposed on the support arm.

Preferably, the support arm is provided with a guide rail, the guide rail extends along the first direction, and the first slider is slidably disposed on the guide rail.

Preferably, the support includes the riser and follows the direction of height interval of supporting mechanism set up in base and footstock on the riser, first driving piece set up in on the footstock, the one end of lead screw rotate install in the base, the other end connect in the output of first driving piece, the riser connect in translation mechanism.

Preferably, the support is provided with a guide plate, the guide plate is slidably sleeved with a second sliding block along the height direction of the supporting mechanism, and the bearing seat and the sleeve are respectively connected to the second sliding block.

Preferably, the wire twisting mechanism further comprises a third driving element, a supporting portion is arranged on the second sliding block, the third driving element is arranged on the supporting portion, and the rotating shaft is connected to the output end of the third driving element.

The utility model has the beneficial effects that:

according to the wire stranding machine, the translation mechanism is arranged on the supporting mechanism in a sliding mode, so that the positions of the transmission mechanism and the wire stranding mechanism are adjusted along the first direction, the position of the bearing seat is accurately adjusted along the second direction through the matching of the screw rod of the transmission mechanism and the sleeve, the clamping jaw is further accurately regulated and controlled, the clamping jaw can accurately clamp a wire, and then the clamping jaw is driven by the rotating shaft to rotate around the axis direction of the rotating shaft so as to perform wire stranding operation on the wire on the clamping jaw, so that the wire stranding machine is simple to operate and flexible in operation. In addition, the axis direction of the screw rod is arranged along the height direction parallel to the supporting mechanism, so that the transmission mechanism and the wire twisting mechanism which are matched move on the longitudinal space to complete wire twisting operation on the wire rod, the transverse space occupied by the wire twisting machine is saved as much as possible, and the wire twisting machine is used in a limited place.

Drawings

Fig. 1 is a first schematic structural diagram of a wire twisting machine according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a wire twisting machine according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a jaw configuration for a wire twisting machine provided by an embodiment of the present invention;

fig. 4 is an exploded schematic view of a wire twisting machine according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of a wire twisting machine provided by an embodiment of the present invention.

In the figure:

1-a support mechanism; 11-upright post; 12-a support arm; 121-a second drive member; 122-a guide rail;

2-a translation mechanism; 21-a first slider; 22-a connecting plate; 221-a reinforcement part; 222-a floating joint;

3-a transmission mechanism; 31-a scaffold; 311-a riser; 3111-a fixed plate; 312-a base; 313-a top seat; 314-a guide plate; 315-second slider; 3151-a support; 32-a screw rod; 33-a cannula; 34-a first drive member;

4-a wire stranding mechanism; 41-a bearing seat; 42-a rotating shaft; 43-a jaw; 431-a first splint; 4311-free bearing; 4312-linker; 4313-first mounting hole; 432-a second splint; 4321-axle body; 4322-second mounting hole; 433-an elastic member; 434-a first clamping block; 4341-first mount; 4342-bump; 4343-pressing groove; 435-a second clamping block; 4351-second mount; 4352-briquetting; 44-a cylinder; 441-a mounting plate; 45-push block; 46-third drive member.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 3, an embodiment of the present invention provides a wire twisting machine, including a supporting mechanism 1, a translating mechanism 2, a transmission mechanism 3, and a wire twisting mechanism 4, where the translating mechanism 2 is slidably disposed on the supporting mechanism 1 along a first direction, the first direction is perpendicular to a height direction of the supporting mechanism 1, and the first direction is shown by an arrow ab in fig. 1; the transmission mechanism 3 comprises a bracket 31, a screw rod 32 and a sleeve 33 screwed on the screw rod 32, the bracket 31 is connected to the translation mechanism 2, a first driving part 34 is arranged on the bracket 31, the screw rod 32 is rotatably mounted on the bracket 31 and connected to the output end of the first driving part 34, and the screw rod 32 can be driven by the first driving part 34 to rotate along the axis thereof, the axial direction of the screw rod 32 is parallel to the height direction of the support mechanism 1, the height direction of the support mechanism 1 is a second direction, and the second direction is the direction indicated by an arrow cd shown in fig. 1; the wire twisting mechanism 4 comprises a bearing seat 41, a rotating shaft 42 and a clamping jaw 43, wherein the bearing seat 41 is connected to the sleeve 33, the rotating shaft 42 is rotatably arranged on the bearing seat 41, and the clamping jaw 43 is detachably connected to the rotating shaft 42 and is configured to clamp a wire.

The stranding machine of this embodiment, the translation mechanism 2 that utilizes sliding setting on the supporting mechanism 1 realizes adjusting the position of drive mechanism 3 and stranding mechanism 4 along first direction, lead screw 32 and the position that the accurate adjusting bearing frame 41 of second direction is realized along in the cooperation of sleeve pipe 33 through drive mechanism 3, and then accurate regulation and control clamping jaw 43, so that clamping jaw 43 can accurate centre gripping wire rod, then drive clamping jaw 43 through pivot 42 and revolute the axis direction rotation of axle 42 and carry out the stranded conductor operation with the wire rod of centre gripping on to clamping jaw 43, and easy operation, and the operation is nimble. In addition, the axis direction of the screw rod 32 is arranged along the height direction parallel to the supporting mechanism 1, so that the transmission mechanism 3 and the wire twisting mechanism 4 which are matched move in the longitudinal space to perform wire twisting operation on the wire, the horizontal space occupied by the wire twisting machine is saved as much as possible, the wire twisting machine is used in a limited place, a plurality of wire twisting machines can be arranged in a limited place, and the processing efficiency is improved.

Alternatively, referring to fig. 1 and 3, the clamping jaw 43 includes a first clamping plate 431 and a second clamping plate 432 hinged to each other, one end of the first clamping plate 431 is detachably connected to the rotating shaft 42, the other end of the first clamping plate is detachably provided with a first clamping block 434, an elastic member 433 is sandwiched between one end of the second clamping plate 432 and the first clamping plate 431, the other end of the second clamping plate is detachably provided with a second clamping block 435, the first clamping block 434 and the second clamping block 435 are oppositely arranged, and the elastic member 433 is configured to drive the second clamping block 435 to press against the first clamping block 434 to clamp the wire. The second clamping plate 432 rotates relative to the first clamping plate 431 under the action of the elastic force of the elastic member 433, and then the second clamping plate 432 is stopped at the clamping position, so that the second clamping block 435 on the second clamping plate 432 is pressed against the first clamping block 434 on the first clamping plate 431, and the wire is clamped. Through the first clamp block 434 that can dismantle the setting on the first splint 431 and the second clamp block 435 that can dismantle the setting on the second splint 432, be convenient for change first clamp block 434 and second clamp block 435 according to the wire rod of different specifications, promote the compatibility of stranding machine to the wire rod of all kinds of dimensions of adaptation.

Alternatively, referring to fig. 1 and 3, a hinge seat 4311 is provided on the first clamping plate 431, a middle portion of the second clamping plate 432 is hinged to the hinge seat 4311 through a shaft body 4321, and the second clamping plate 432 rotates relative to the first clamping plate 431 in an axial direction of the shaft body 4321. The elastic member 433 and the first clamping block 434 are respectively located at two sides of the hinge base 4311, the elastic member 433 and the second clamping block 435 are respectively located at two ends of the second clamping plate 432, so that under the elastic force of the elastic member 433, when one end of the second clamping plate 432 is pressed by the elastic member 433, the second clamping plate 432 rotates relative to the first clamping plate 431 by the support of the hinge base 4311, so that the other end of the second clamping plate 432 is close to the first clamping plate 431, and thus the second clamping block 435 located at the other end of the second clamping plate 432 can be pressed against the first clamping block 434, and a wire between the first clamping block 434 and the second clamping block 435 is clamped.

Optionally, referring to fig. 1, 2 and 4, the wire twisting mechanism 4 further comprises a cylinder 44 and a pushing block 45 connected to an output end of the cylinder 44, the cylinder 44 being connected to the sleeve 33 such that the pushing block 45 keeps moving synchronously with the clamping jaw 43 in the second direction. The push block 45 is located on one side, away from the first clamping plate 431, of the second clamping plate 432, the push block 45 can be driven by the air cylinder 44 to abut against the surface, away from the first clamping plate 431, of the second clamping plate 432, the acting force of the push block 45 abutting against the second clamping plate 432 is opposite to the direction of the elastic force of the elastic piece 433 on the second clamping plate 432, the position, abutting against the second clamping plate 432, of the push block 45 is opposite to the elastic piece 433, so that when the push block 45 acts on the second clamping plate 432, the second clamping block 435 on the second clamping plate 432 is far away from the first clamping block 434 on the first clamping plate 431, the wire is taken down from the clamping jaw 43, or the wire is placed in a clamping station between the first clamping block 434 and the second clamping block 435.

Alternatively, the axial direction of the rotating shaft 42 in the present embodiment is parallel to the second direction, and the axial direction of the shaft body 4321 is perpendicular to the first direction and the second direction, respectively. In other embodiments, the axial direction of the rotating shaft 42 and the axial direction of the shaft body 4321 can be set according to the orientation of the stranded wire required by the stranding machine.

Optionally, referring to fig. 1 and 3, one end of the first clamping plate 431 is provided with two connecting portions 4312 at intervals, the rotating shaft 42 is clamped between the two connecting portions 4312, and the two connecting portions 4312 are fastened and connected by a fastener to fasten the first clamping plate 431 and the rotating shaft 42, so that the clamping jaw 43 can be maintained and replaced conveniently.

Optionally, referring to fig. 3, the other end of the first clamping plate 431 is provided with a first mounting hole 4313, the first clamping block 434 has a first mounting seat 4341 and a projection 4342 arranged on the first mounting seat 4341, two sides of the projection 4342 have press grooves 4343, and the first mounting seat 4341 can be screwed in the first mounting hole 4313 on the first clamping plate 431 by a screw. One end of the second clamping plate 432 is provided with a second mounting hole 4322, the second clamping block 435 has a second mounting seat 4351 and a pressing block 4352 arranged on the second mounting seat 4351, the second mounting seat 4351 can be screwed to the second mounting hole 4322 on the second clamping plate 432 through a screw, when the second clamping block 435 is pressed against the first clamping block 434, the pressing block 4352 is accommodated in the pressing groove 4343, and the bump 4342 is pressed against the pressing block 4352, so that the wire is clamped.

Alternatively, referring to fig. 1 and 4, the translating mechanism 2 includes a first sliding block 21, a second driving member 121, and a connecting plate 22 connected to an output end of the second driving member 121, the second driving member 121 is disposed on the supporting mechanism 1, the first sliding block 21 is slidably disposed on the supporting mechanism 1 along a first direction, and the first sliding block 21 and the bracket 31 are respectively connected to the connecting plate 22. The above structure is that the second driving part 121 drives the connecting plate 22 to move along the first direction, and the connecting plate 22 drives the first slider 21 to slide on the supporting mechanism 1 along the first direction, so as to drive the bracket 31 to move along the first direction.

Optionally, referring to fig. 4, a reinforcing portion 221 is disposed on the connecting plate 22, and the connecting plate 22 and the reinforcing portion 221 are respectively connected to the bracket 31 to ensure that the transmission mechanism 3 is firmly connected to the translation mechanism 2.

Alternatively, referring to fig. 4, the connecting plate 22 is connected to the output end of the second driving member 121 through a floating joint 222, which improves the stability of the sliding operation of the second driving member 121 for driving the connecting plate 22 and the first slider 21.

Alternatively, referring to fig. 4 and 5, the supporting mechanism 1 includes a vertical column 11 and a supporting arm 12 perpendicular to each other, the supporting arm 12 is disposed at a top end of the vertical column 11, a height direction of the vertical column 11 is a second direction, the first sliding block 21 is slidably disposed on the supporting arm 12, and a length of the supporting arm 12 can be determined according to a space occupied by the stranding machine and a range of movement of the transmission mechanism 3 along the first direction. The structure of the supporting mechanism 1 is arranged, so that the transmission mechanism 3 and the stranding mechanism 4 are arranged along the height direction of the stand column 11, the horizontal space occupied by the stranding machine is saved as much as possible, the use in a limited field is met, and meanwhile, the position of the transmission mechanism 3 and the position of the stranding mechanism 4 can be flexibly adjusted by the translation mechanism 2.

Alternatively, referring to fig. 4 and 5, the supporting arm 12 is provided with a guide rail 122, the guide rail 122 extends along the first direction, and the first slider 21 is slidably disposed on the guide rail 122. Through the cooperation of the guide rail 122 and the first slider 21, the sliding resistance of the first slider 21 can be reduced, and the first slider 21 can be prevented from shaking or shifting.

Optionally, two guide rails 122 and two first sliders 21 are respectively provided, one first slider 21 is slidably provided on each guide rail 122, and the connecting plate 22 is connected to the two first sliders 21, so as to further improve the operation stability of the translation mechanism 2.

Optionally, referring to fig. 4 and 5, the bracket 31 includes a vertical plate 311, and a base 312 and a top seat 313 that are disposed on the vertical plate 311 at intervals along the height direction of the column 11, the first driving member 34 is disposed on the top seat 313, one end of the screw rod 32 is rotatably mounted on the base 312, and the other end is connected to the output end of the first driving member 34, the screw rod 32 is driven by the first driving member 34 to rotate around its axis direction, and then the sleeve 33 screwed on the screw rod 32 moves up and down along the axis direction of the screw rod 32, so as to drive the wire twisting mechanism 4 to move along the second direction.

Optionally, a fixing plate 3111 is disposed on the vertical plate 311, the fixing plate 3111 is connected to the connecting plate 22 and the reinforcing portion 221 of the translation mechanism 2, and the bracket 31 is moved along the first direction by the connecting plate 22 moving along the first direction.

Optionally, referring to fig. 4 and 5, a guide plate 314 is disposed on the bracket 31, the guide plate 314 extends along the second direction, and the guide plate 314 is slidably sleeved with a second sliding block 315 along the second direction, and the bearing seat 41 and the sleeve 33 are respectively connected to the second sliding block 315. The guide plate 314 and the second sliding block 315 cooperate to ensure that the second sliding block 315 slides stably in the second direction.

Alternatively, referring to fig. 2 and 4, the cylinder 44 is connected to the second slider 315 through the mounting plate 441, and the cylinder 44 can be driven by the second slider 315 to move in the second direction along with the movement of the sleeve 33.

Optionally, referring to fig. 4 and 5, the wire twisting mechanism 4 further includes a third driving member 46, a supporting portion 3151 is disposed on the second slider 315, the third driving member 46 is disposed on the supporting portion 3151, and the rotating shaft 42 is connected to an output end of the third driving member 46. The third driving member 46 drives the rotating shaft 42 to rotate around the axis direction thereof, and further drives the clamping jaw 43 to rotate around the axis direction of the rotating shaft 42 so as to perform wire stranding operation on the wire clamped on the clamping jaw 43.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A wire twisting machine, comprising:

a support mechanism (1);

the translation mechanism (2) is arranged on the support mechanism (1) in a sliding mode along a first direction, and the first direction is perpendicular to the height direction of the support mechanism (1);

the transmission mechanism (3) comprises a support (31), a screw rod (32) and a sleeve (33) which is in threaded connection with the screw rod (32), the support (31) is connected to the translation mechanism (2), a first driving piece (34) is arranged on the support (31), the screw rod (32) is rotatably installed on the support (31) and is connected to the output end of the first driving piece (34), the screw rod (32) can be driven by the first driving piece (34) to rotate along the axis of the screw rod, and the axis direction of the screw rod (32) is parallel to the height direction of the support mechanism (1);

stranding mechanism (4), including bearing frame (41), pivot (42) and clamping jaw (43), bearing frame (41) connect in sleeve pipe (33), pivot (42) rotate set up in on bearing frame (41), clamping jaw (43) can dismantle connect in pivot (42) are configured to the centre gripping wire rod.

2. The stranding machine according to claim 1, characterized in that the clamping jaw (43) includes a first clamping plate (431) and a second clamping plate (432) hinged to each other, one end of the first clamping plate (431) is detachably connected to the rotating shaft (42), the other end of the first clamping plate is detachably provided with a first clamping block (434), an elastic member (433) is clamped between one end of the second clamping plate (432) and the first clamping plate (431), the other end of the second clamping plate is detachably provided with a second clamping block (435), and the elastic member (433) is configured to drive the second clamping block (435) to press against the first clamping block (434) so as to clamp the wire.

3. The stranding machine according to claim 2, characterized in that a hinge base (4311) is provided on the first clamp plate (431), the middle of the second clamp plate (432) is hinged to the hinge base (4311), and the elastic element (433) and the first clamping block (434) are respectively located on both sides of the hinge base (4311).

4. A machine according to claim 2, characterized in that the stranding mechanism (4) further comprises a cylinder (44) and a pusher (45) connected to the output of the cylinder (44), the cylinder (44) being connected to the sleeve (33), the pusher (45) being located on the side of the second jaw (432) facing away from the first jaw (431), the pusher (45) being drivable by the cylinder (44) against the second jaw (432) to move the second jaw (435) away from the first jaw (434).

5. The stranding machine according to claim 1, characterized in that a second drive (121) is provided on the support mechanism (1), in that the translation mechanism (2) comprises a first slider (21) and a connecting plate (22) connected to each other, in that the connecting plate (22) is connected to the output of the second drive (121), in that the first slider (21) is slidably provided on the support mechanism (1) in the first direction, and in that the bracket (31) is connected to the connecting plate (22).

6. A machine according to claim 5, characterized in that said supporting mechanism (1) comprises a vertical column (11) and a supporting arm (12) perpendicular to each other, said supporting arm (12) being arranged at one end of said vertical column (11), said first slider (21) being slidingly arranged on said supporting arm (12).

7. A wire twisting machine according to claim 6, wherein the supporting arm (12) is provided with a guide rail (122), the guide rail (122) extending in the first direction, the first slider (21) being slidably arranged on the guide rail (122).

8. The wire twisting machine according to claim 1, wherein the support (31) comprises a vertical plate (311) and a base (312) and a top seat (313) which are arranged on the vertical plate (311) at intervals along the height direction of the support mechanism (1), the first driving member (34) is arranged on the top seat (313), one end of the screw rod (32) is rotatably mounted on the base (312), the other end is connected to the output end of the first driving member (34), and the vertical plate (311) is connected to the translation mechanism (2).

9. The stranding machine according to claim 1, characterized in that a guide plate (314) is provided on the carriage (31), the guide plate (314) is slidably sleeved with a second slider (315) in the height direction of the support mechanism (1), and the bearing block (41) and the sleeve (33) are respectively connected to the second slider (315).

10. The wire twisting machine according to claim 9, wherein the wire twisting mechanism (4) further comprises a third driving member (46), a supporting portion (3151) is provided on the second slider (315), the third driving member (46) is provided on the supporting portion (3151), and the rotating shaft (42) is connected to an output end of the third driving member (46).

Images