CN220813179U

CN220813179U - Cutting device

Info

Publication number: CN220813179U
Application number: CN202322727161.8U
Authority: CN
Inventors: 张秀菊
Original assignee: Wuhu Shangyao Clothing Design Co ltd
Current assignee: Wuhu Shangyao Clothing Design Co ltd
Priority date: 2023-10-10
Filing date: 2023-10-10
Publication date: 2024-04-19
Anticipated expiration: 2033-10-10

Abstract

The utility model discloses a cutting device, which comprises: the cloth cutting machine comprises a frame, a workbench and a cutting mechanism, wherein the workbench is arranged on one side of the frame, and the cutting mechanism is arranged on the frame and used for cutting cloth on the workbench; wherein, cutting mechanism includes: the cutting straight knife rest comprises a first driving motor, a rotating wheel, a sliding installation assembly, a connecting plate, a connecting rod and a cutting straight knife rest, wherein the first driving motor is arranged at the top of a frame, and the rotating wheel is arranged at the end part of an output shaft of the first driving motor. The utility model overcomes the defects that the movement speed of the air cylinder is generally slower and difficult to control accurately, the working efficiency is very limited when the assembly line operation is carried out on the high-speed conveyor belt, and the cutting speed cannot keep up with the conveying speed of the high-speed conveyor belt, thereby influencing the quality and the production efficiency of the garment cutting. Therefore, the cutting device is easy to adjust in cutting efficiency, can adapt to operation in a quick conveying state and a slow conveying state, and can ensure cutting quality and production efficiency.

Description

Cutting device

Technical Field

The utility model relates to the technical field of clothing production, in particular to a cutting device.

Background

With the improvement of living standard, in daily life, people are considering whether to ventilate or keep warm, and cutting, shape, material and the like are also becoming important factors considered gradually, wherein, as a basic step in the clothing production process, the quality of cutting has important influence on the subsequent production steps of clothing, the cutting size is accurate, the edge is flat, the quality of the clothing can be almost improved by one grade, but in actual production, various reasons, such as poor cloth fixing effect and insufficient sharpness of cutting parts, often result in not obtaining higher cutting quality, and thus influencing the final clothing quality, which is unfavorable for the long-standing development of clothing factories, therefore, a cutting device with better cutting effect is urgently needed to be provided for the technicians in the field.

Chinese patent CN210215971U discloses a garment cutting device, the device pushes the pressing plate and the cutting layer to move downwards through opening the air cylinder, the cutting needle on the surface of the cutting layer will contact the cloth pushed up by the protruding portion of the template first, the cutting of the cloth can be completed along with the continuous downward movement of the cutting layer, the second spring is in a compressed state in this process, and fixes the cloth through the pressing block, if the cutting work needs to be continued, the pressing plate can be reset through the air cylinder to enter the next working cycle, if the cutting work does not need to be continued any more, the air cylinder can be closed, the first spring in a compressed state will slowly reset the pressing plate, and the pressing plate is ensured to be in a suspended state under a non-working state and not to contact with the flexible supporting layer.

However, since the movement speed of the cylinder is generally slow and is not easy to control accurately, when the assembly line operation is performed on the high-speed conveying mechanism, the device has very limited working efficiency, and the cutting speed cannot keep up with the conveying speed of the high-speed conveying mechanism, so that the quality and the production efficiency of garment cutting are affected.

Therefore, the cutting device provided by the utility model is easy to adjust, can adapt to the operation of the conveyor belt in the fast state and the slow state, and can ensure the cutting quality and the production efficiency, and the problems to be solved are urgent.

Disclosure of utility model

Aiming at the technical problems, the utility model aims to overcome the defects that the movement speed of the air cylinder is generally slower and is not easy to control accurately in the prior art, the working efficiency of the device is very limited when the assembly line operation is carried out on the high-speed conveying mechanism, and the cutting speed cannot keep up with the conveying speed of the high-speed conveying mechanism, so that the quality and the production efficiency of garment cutting are affected. Therefore, the cutting device is easy to adjust in cutting efficiency, can adapt to operation in a quick conveying state and a slow conveying state, and can ensure cutting quality and production efficiency.

In order to achieve the above object, the present utility model provides a cutting device comprising: the cloth cutting machine comprises a frame, a workbench and a cutting mechanism, wherein the workbench is arranged on one side of the frame, and the cutting mechanism is arranged on the frame and used for cutting cloth on the workbench; wherein, cutting mechanism includes: the cutting straight tool apron comprises a first driving motor, a rotating wheel, a sliding mounting assembly, a connecting plate, a connecting rod and a cutting straight tool apron body, wherein the first driving motor is arranged at the top of a frame, the rotating wheel is arranged at the end part of an output shaft of the first driving motor, the sliding mounting assembly is arranged on the frame, the connecting plate is fixed on the sliding mounting assembly, one end of the connecting rod deviates from the axis of the rotating wheel and is hinged to the axis of the rotating wheel, the other end of the connecting rod is hinged to the connecting plate, the cutting straight tool apron body is arranged on the sliding mounting assembly, and the sliding mounting assembly can slide along the length direction of the frame to cut cloth on a workbench.

Preferably, the sliding mounting assembly comprises: slide rail, slip table and mounting panel, the slide rail has a plurality of and sets up in frame one side, the slip table has a plurality of and can follow slide rail length direction sliding assembly on the slide rail, mounting panel fixed mounting is on a plurality of slip table and accessible slip table slides along slide rail length direction.

Preferably, a plurality of mounting holes are formed in the mounting plate, and the connecting plate and the cutting straight blade holder are mounted on the mounting plate through the mounting holes.

Preferably, the two ends of the sliding rail are provided with first anti-falling blocks.

Preferably, the mounting plate is also provided with a pressing assembly through a mounting hole, and the pressing assembly is provided with a plurality of pressing assemblies which are arranged at two sides of the cutting straight knife seat; wherein,

The compression assembly includes: the telescopic rod is vertically arranged on one side of the mounting plate in a penetrating mode through the mounting hole, the bottom end of the telescopic rod is provided with a compression block, the elastic piece is sleeved on the telescopic rod, one end of the elastic piece is in butt joint with the compression block, and the other end of the elastic piece is in butt joint with the mounting block.

Preferably, a second anti-falling block is arranged at the top end of the telescopic rod.

Preferably, a cutting seat is arranged on the workbench, the cutting seat is arranged right below the straight knife at the bottom of the cutting straight knife seat, and a cutting groove matched with the straight knife is formed in the upper surface of the cutting seat.

Preferably, a supporting frame for supporting the first driving motor is further arranged on one side of the frame.

Preferably, an intermittent feeding mechanism is arranged on one side of the workbench to feed cloth to the upper surface of the workbench.

Preferably, the intermittent feeding mechanism comprises; the conveying device comprises a fixing frame, transmission gears, conveying rollers, incomplete gears and a second driving motor, wherein the fixing frame is arranged on one side of a workbench, a plurality of conveying rollers are arranged at the top of the fixing frame at intervals in parallel, the transmission gears are fixedly arranged on the same sides of the plurality of conveying rollers, the second driving motor is arranged on the fixing frame, and the incomplete gears are arranged at the end part of an output shaft of the second driving motor and meshed with any transmission gear.

According to the technical scheme, compared with the prior art, the utility model has the following beneficial effects: the cutting mechanism can realize accurate cutting of cloth on the workbench. The first driving motor provides power and drives the sliding installation assembly to slide through the rotating wheel, so that the cutting straight knife holder moves on the frame. The connecting rod deviates from the axis of the rotating wheel and is hinged with the rotating wheel, and the stable movement of the cutting straight knife holder can be ensured through the hinged design of the connecting rod and the connecting plate. The sliding performance of the sliding installation component enables the cutting mechanism to cut cloth in the length direction of the frame. The first driving motor adjusts the rotating speed of the rotating wheel by adopting the servo motor, and the cutting speed can be controlled according to the conveying speed of the conveying mechanism, so that the quality and the production efficiency of garment cutting are improved.

Additional features and advantages of the utility model will be set forth in the detailed description which follows; and none of the utility models are related to the same or are capable of being practiced in the prior art.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

Fig. 1 is a perspective view of a cutting device provided in a preferred embodiment of the present utility model.

Fig. 2 is a perspective view of a cutting device according to a preferred embodiment of the present utility model.

Fig. 3 is a partial perspective view of a cutting device provided in a preferred embodiment of the present utility model.

Fig. 4 is a partial perspective view of a cutting device provided in a preferred embodiment of the present utility model.

Fig. 5 is a partial perspective view of a cutting device provided in a preferred embodiment of the present utility model.

Fig. 6 is a partial perspective view of a cutting device provided in a preferred embodiment of the present utility model.

Reference numerals illustrate:

1-a frame; 5-supporting frames; 2-a cutting mechanism; 6-a first drive motor; 7-rotating wheels; 8-a sliding mounting assembly; 801-sliding rails; 80101-first anti-slip block; 802-slipway; 803-mounting plate; 80301-mounting holes; 9-connecting plates; 10-connecting rods; 11-cutting a straight cutter holder; 1101-straight blade; 12-a compression assembly; 1201—mounting blocks; 1202-telescoping rod; 120201-a compression block; 120202-a second anti-slip block; 1203-resilient members; 3-a workbench; 13, cutting the base; 1301-cutting groove; 4-intermittent feeding mechanism; 14-fixing frame; 15-a transmission gear; 16-transporting rollers; 17-incomplete gear; 18-a second drive motor.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the present utility model, unless otherwise indicated, terms such as "upper, lower, inner, outer" and the like are used merely to denote orientations of the term in a normal use state or are commonly understood by those skilled in the art, and should not be construed as limitations of the term.

The utility model will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the utility model and the specific objects and functions achieved.

Referring to fig. 1 and 2: a cutting device, the device comprising: the cloth cutting machine comprises a frame 1, a workbench 3 and a cutting mechanism 2, wherein the workbench 3 is arranged on one side of the frame 1, and the cutting mechanism 2 is arranged on the frame 1 and used for cutting cloth on the workbench 3; wherein,

The cutting mechanism 2 includes: the utility model provides a straight blade holder 11 is tailor to first driving motor 6, rotor 7, slidable mounting subassembly 8, connecting plate 9, connecting rod 10, first driving motor 6 sets up at frame 1 top, rotor 7 sets up at first driving motor 6 output shaft tip, slidable mounting subassembly 8 sets up on frame 1, connecting plate 9 is fixed on slidable mounting subassembly 8, connecting rod 10 one end skew is rather than articulated in rotor 7 axle center, and the other end is articulated with connecting plate 9, straight blade holder 11 sets up on slidable mounting subassembly 8, and accessible slidable mounting subassembly 8 slides along frame 1 length direction in order to tailor the cloth on the workstation 3.

The cutting mechanism 2 can realize accurate cutting of cloth on the workbench 3. The first driving motor 6 provides power, and the sliding mounting assembly 8 is driven to slide through the rotating wheel 7, so that the cutting straight knife holder 11 moves on the frame 1. The connecting rod 10 deviates from the axle center of the rotating wheel 7 and is hinged with the axle center, and the stable movement of the cutting straight knife rest 11 can be ensured through the hinged design of the connecting rod 10 and the connecting plate 9. The sliding performance of the sliding mounting assembly 8 enables the cutting mechanism 2 to cut cloth in the length direction of the frame 1. The first driving motor 6 adjusts the rotation speed of the rotating wheel 7 by adopting a servo motor, and can control the cutting speed according to the transmission speed of the transmission mechanism, thereby improving the quality and the production efficiency of garment cutting.

Referring to fig. 3: the slide mount assembly 8 includes: slide rail 801, slip table 802 and mounting panel 803, slide rail 801 has a plurality of and sets up in frame 1 one side, slip table 802 has a plurality of and can follow slide rail 801 length direction sliding fit on slide rail 801, mounting panel 803 fixed mounting is on a plurality of slip table 802 and accessible slip table 802 slides along slide rail 801 length direction.

The adjustability of the sliding mounting assembly 8 enables the cutting mechanism 2 to slide freely in the length direction of the frame 1, so that cloth is cut. Meanwhile, due to the structural design of the sliding rail 801 and the sliding table 802, sliding stability and stability are guaranteed. This design allows the slide mount assembly 8 to have an adjustable function, allowing the positions of the slide table 802 and the mounting plate 803 to be mounted or adjusted on the slide rail 801 as required. The provision of the slide rail 801 provides a function of supporting and guiding so that the slide table 802 can smoothly slide along the length direction of the slide rail 801. The fixed mounting of the mounting plate 803 on the slide table 802 ensures the stability of the cutting straight blade holder 11.

Referring to fig. 3: the mounting plate 803 is provided with a plurality of mounting holes 80301, and the connecting plate 9 and the cutting straight blade holder 11 are mounted on the mounting plate 803 through the mounting holes 80301.

The connecting plate 9 and the cutting straight blade holder 11 can be flexibly arranged and adjusted on the mounting plate 803 so as to realize accurate cutting of cloth. The placement of the mounting holes 80301 provides for a variety of mounting location options that can be adjusted and positioned as desired. The attachment of the connecting plate 9 and the cutting straight blade holder 11 to the mounting plate 803 ensures their stability and reliability.

Referring to fig. 3: the two ends of the sliding rail 801 are provided with first anti-falling blocks 80101.

According to the application, through the arrangement of the first anti-falling block 80101, the cutting device can effectively prevent the sliding table 802 from falling off, and the stability and the safety of the sliding mounting assembly 8 are ensured. The design of the first anti-drop block 80101 can be adjusted according to practical requirements to adapt to different lengths and sliding ranges of the sliding rail 801.

Referring to fig. 2 and 4: the mounting plate 803 is also provided with a pressing component 12 through a mounting hole 80301, and the pressing component 12 is provided with a plurality of pressing components which are arranged on two sides of the cutting straight blade seat 11; wherein,

The hold-down assembly 12 includes: the mounting block 1201 is horizontally mounted on one side of the mounting plate 803 through the mounting hole 80301, the telescopic rod 1202 vertically penetrates through the mounting block 1201 and is provided with the compression block 120201 at the bottom end, and the elastic piece 1203 is sleeved on the telescopic rod 1202 and one end of the elastic piece 1203 is abutted to the compression block 120201, and the other end of the elastic piece 1203 is abutted to the mounting block 1201.

When the telescopic rod 1202 moves downwards, the compression block 120201 can apply pressure to the cutting straight knife holder 11, so that the position of the cutting straight knife holder 11 is fixed. Meanwhile, the elastic piece 1203 can provide certain elasticity, so that pressure is uniformly distributed, and the stability of the cutting straight blade seat 11 is ensured. Through the combination of the mounting block 1201, the telescopic rod 1202 and the elastic piece 1203, the pressing assembly 12 can effectively fix the cutting straight blade holder 11, and the accuracy and stability of cutting are improved. The provision of mounting holes 80301 also allows the position of the compression assembly 12 to be adjusted to accommodate different cutting requirements.

Referring to fig. 4: the top end of the telescopic rod 1202 is provided with a second anti-falling block 120202.

The second anti-falling block 120202 is used for preventing the elastic piece 1203 from ejecting the telescopic rod 1202 out of the mounting block 1201, so that the telescopic rod 1202 is separated, and the pressing block 120201 cannot press the fabric.

Referring to fig. 2, 4 and 6: the workbench 3 is provided with a cutting seat 13, the cutting seat 13 is arranged right below a straight knife 1101 at the bottom of the cutting straight knife seat 11, and the upper surface of the cutting seat is provided with a cutting groove 1301 matched with the straight knife 1101.

The cutting seat 13 is mainly used for supporting and positioning the bottom straight knife 1101 of the cutting straight knife seat 11 so as to ensure the stability and accuracy of the cutting straight knife seat 11 in the working process. The upper surface of tailorring seat 13 is provided with tailorring groove 1301, and its shape and size and straight sword 1101 looks adaptation to ensure that straight sword 1101 can insert in tailorring groove 1301, when the surface fabric through tailorring groove 1301 upper surface, compress tightly subassembly 12 compress tightly the surface fabric of tailorring groove 1301 both sides, tailorring straight blade holder 11 drive straight sword 1101 and tailorring groove 1301 cooperation on tailorring seat 13 and realize tailorring the surface fabric.

Referring to fig. 2: a supporting frame 5 for supporting the first driving motor 6 is further arranged on one side of the frame 1.

The support 5 according to the application is mainly provided for supporting and fixing the first drive motor 6 to ensure its stability and reliability during operation. The support 5 can be designed according to practical needs to adapt to the size and weight of the first drive motor 6. By means of the arrangement of the support frame 5, the first drive motor 6 can be firmly mounted on the frame 1 and maintained in correct position and alignment with the other components of the cutting device. Thus, the first driving motor 6 can stably provide power and driving force when the cutting operation is performed, and the normal operation of the cutting device is ensured.

Referring to fig. 1: an intermittent feeding mechanism 4 is arranged on one side of the workbench 3 to feed cloth to the upper surface of the workbench 3.

The cloth can be precisely fed to the upper surface of the table 3 by the intermittent feeding mechanism 4 and maintained at a desired position and posture. Thus, the cutting operation can be performed on the workbench 3 with fixed cloth, and the accuracy and stability of cutting are improved.

Referring to fig. 6: the intermittent feeding mechanism 4 comprises; the automatic conveying device comprises a fixing frame 14, transmission gears 15, conveying rollers 16, an incomplete gear 17 and a second driving motor 18, wherein the fixing frame 14 is arranged on one side of a workbench 3, a plurality of conveying rollers 16 are arranged at the top of the fixing frame 14 at intervals in parallel, the transmission gears 15 are fixedly arranged on the same sides of the plurality of conveying rollers 16, the second driving motor 18 is arranged on the fixing frame 14, and the incomplete gear 17 is arranged at the end part of an output shaft of the second driving motor 18 and is meshed with any transmission gear 15.

The transport roller 16 of the present application is used to support and transport the fabric so that it can smoothly move to the upper surface of the table 3. The same side of the plurality of conveying rollers 16 is fixedly provided with transmission gears 15, and the transmission gears 15 are connected with the conveying rollers 16 and push cloth forwards through transmission force. A second drive motor 18 is provided on the mount 14 which provides power to drive the operation of the intermittent feed mechanism 4. The incomplete gear 17 is provided at the output shaft end of the second drive motor 18, and meshes with any of the transmission gears 15. By the movement of the incomplete gear 17, the transmission force can be transmitted to the transmission gear 15, thereby driving the movement of the transport roller 16. Since the incomplete gear 17 has no rack, when the portion without rack is meshed with the transmission gear 15, the transmission gear 15 does not rotate, and the rotating roller does not continue to convey the fabric, thereby realizing intermittent conveyance of the fabric.

When the device provided by the utility model is used, the first driving motor 6 adopts the servo motor to adjust the rotation speed of the rotating wheel 7, and the cutting speed can be controlled according to the transmission speed of the transmission mechanism, so that the quality and the production efficiency of garment cutting are improved. The provision of the slide rail 801 provides a function of supporting and guiding so that the slide table 802 can smoothly slide along the length direction of the slide rail 801. The placement of the mounting holes 80301 provides for a variety of mounting location options that can be adjusted and positioned as desired. The setting of the first anti-drop block 80101 can effectively prevent the sliding table 802 from being separated by the cutting device, and ensures the stability and safety of the sliding installation assembly 8. When the mounting block moves downward, the pressing block 120201 applies pressure to the trimming straight blade holder 11, thereby fixing the position of the trimming straight blade holder 11. The upper surface of tailorring seat 13 is provided with tailorring groove 1301, and its shape and size and straight sword 1101 looks adaptation to ensure that straight sword 1101 can insert in tailorring groove 1301, when the surface fabric through tailorring groove 1301 upper surface, compress tightly subassembly 12 compress tightly the surface fabric of tailorring groove 1301 both sides, tailorring straight blade holder 11 drive straight sword 1101 and tailorring groove 1301 cooperation on tailorring seat 13 and realize tailorring the surface fabric. By the action of the intermittent feeding mechanism 4, the cloth can be accurately fed to the upper surface of the table 3 and maintained at a desired position and posture. By the movement of the incomplete gear 17, the transmission force can be transmitted to the transmission gear 15, thereby driving the movement of the transport roller 16. Since the incomplete gear 17 has no rack, when the portion without rack is meshed with the transmission gear 15, the transmission gear 15 does not rotate, and the rotating roller does not continue to convey the fabric, thereby realizing intermittent conveyance of the fabric.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.

Claims

1. A cutting device, the device comprising: the cloth cutting machine comprises a frame (1), a workbench (3) and a cutting mechanism (2), wherein the workbench (3) is arranged on one side of the frame (1), and the cutting mechanism (2) is arranged on the frame (1) and is used for cutting cloth on the workbench (3); wherein,

The cutting mechanism (2) comprises: first driving motor (6), rotor (7), slidable mounting subassembly (8), connecting plate (9), connecting rod (10) and tailors straight blade holder (11), first driving motor (6) set up at frame (1) top, rotor (7) set up at first driving motor (6) output shaft tip, slidable mounting subassembly (8) set up on frame (1), connecting plate (9) are fixed on slidable mounting subassembly (8), connecting rod (10) one end skew is articulated rather than in rotor (7) axle center, and the other end is articulated with connecting plate (9), tailors straight blade holder (11) and sets up on slidable mounting subassembly (8), and accessible slidable mounting subassembly (8) slide in order to tailor the cloth on workstation (3) along frame (1) length direction.

2. A cutting device according to claim 1, wherein the slide mounting assembly (8) comprises: slide rail (801), slip table (802) and mounting panel (803), slide rail (801) have a plurality of and set up in frame (1) one side, slip table (802) have a plurality of and can follow slide rail (801) length direction sliding fit on slide rail (801), mounting panel (803) fixed mounting just accessible slip table (802) slide along slide rail (801) length direction on a plurality of slip table (802).

3. A cutting device according to claim 2, characterized in that the mounting plate (803) is provided with a plurality of mounting holes (80301), and the connecting plate (9) and the cutting straight blade holder (11) are mounted on the mounting plate (803) through the mounting holes (80301).

4. A cutting device according to claim 3, characterized in that the slide rail (801) is provided with first anti-drop blocks (80101) at both ends.

5. A cutting device according to claim 4, characterized in that the mounting plate (803) is further provided with a pressing assembly (12) through a mounting hole (80301), and the pressing assembly (12) is provided with a plurality of pressing assemblies arranged at two sides of the cutting straight blade seat (11); wherein,

The compression assembly (12) includes: installation piece (1201), telescopic link (1202) and elastic component (1203), installation piece (1201) pass through mounting hole (80301) horizontal installation in mounting panel (803) one side, telescopic link (1202) vertically run through installation piece (1201) setting and its bottom is provided with compact heap (120201), elastic component (1203) cover is established on telescopic link (1202) and its one end and compact heap (120201) butt, the other end and installation piece (1201) butt.

6. The cutting device according to claim 5, wherein the top end of the telescopic rod (1202) is provided with a second anti-falling block (120202).

7. A cutting device according to claim 1, characterized in that the workbench (3) is provided with a cutting seat (13), the cutting seat (13) is arranged right below a straight knife (1101) at the bottom of the cutting straight knife seat (11), and the upper surface of the cutting seat is provided with a cutting groove (1301) matched with the straight knife (1101).

8. A cutting device according to claim 1, characterized in that the frame (1) is provided on one side with a support frame (5) for supporting the first drive motor (6).

9. A cutting device according to claim 8, characterized in that the table (3) is provided with an intermittent feeding mechanism (4) on one side for feeding cloth to the upper surface of the table (3).

10. A cutting device according to claim 9, characterized in that said intermittent feeding mechanism (4) comprises; mount (14), drive gear (15), transportation roller (16), incomplete gear (17) and second driving motor (18), mount (14) set up in workstation (3) one side, mount (14) top parallel interval is provided with a plurality of transportation roller (16), a plurality of transportation roller (16) homonymy is fixed to be provided with drive gear (15), second driving motor (18) set up on mount (14), incomplete gear (17) set up at second driving motor (18) output shaft tip and with arbitrary drive gear (15) meshing.