CN210025398U - Moving processing equipment for traction trimming cutter - Google Patents

Abstract

The utility model provides a moving processing device for a traction trimming knife, which relates to the technical field of plastic film production, and has simple structure and convenient operation; comprises a frame beam, a support, a cutter device, a motor, a transmission mechanism and a control mechanism; the supports are symmetrically arranged on two sides of the frame beam along the central line of the film running direction, are connected to the frame beam and have freedom degree of movement on the frame beam; the cutter device is arranged on the support, and the support slides to drive the cutter device to cut different positions of the film; one end of the transmission mechanism is connected with the motor output shaft, and the other end of the transmission mechanism is connected with the support and is used for converting the rotation of the motor output shaft into the translation of the support on the frame beam; the control mechanism is connected with the motor and is used for controlling the positive and negative rotation of the motor; the utility model discloses a great limit membrane of thickness moves about the excision on to the film, reduces the film because the protruding phenomenon in rolling edge that the thickness deviation caused, improves the film and batches the quality.

Description

Swimming processing equipment for pulling edge trimming knives

technical field

The utility model relates to the technical field of plastic film production, in particular to a traveling processing device for pulling an edge trimming knife.

Background technique

In the process of transverse stretching of the plastic film, it is difficult to effectively stretch the part of the film held by the clips, resulting in a thin middle part of the film width and a relatively thick clip, and the thick edges need to be cut off in time. After the plastic film is stretched, the film needs to be further cooled and shaped, and the edge film cutting device is designed after the cooling roller and thickness gauge of the tractor. The existing edge film cutting device is generally placed at the two edges of the film, and the two are relatively independent, and the width of the cutting edge is adjusted independently. Thickness accumulation deviation causes edge protrusion, which affects the winding quality. In severe cases, the contact roller of the winder may damage the rubber layer due to local pressure.

In the prior art, for example, the installation structure of a plastic film edge trimming blade disclosed in patent CN207206490U includes a frame, a cutter seat, and a cutter blade. The cutter blade is fixedly installed on the cutter seat, and the frame is also fixed with a transverse Linear slide rail, the cutter seat can be laterally slidably installed on the horizontal linear slide rail; the cutter seat is connected with a transverse link, and the end of the transverse link is hinged with a transmission rod; a motor is also installed on the frame, The motor rotating shaft is fixedly connected with a slider support, the slider support rotates synchronously with the motor rotating shaft, a slider is installed in the slider support in a radially slidable manner, and the slider is fixedly connected with an eccentric shaft; The limit bolts are screwed, and the ends of the limit bolts touch the slider respectively; an eccentric shaft sleeve is arranged around the eccentric shaft, and a bearing is arranged between the eccentric shaft sleeve and the eccentric shaft; the eccentric shaft sleeve is fixedly connected with the transmission rod; In this patent, by periodically changing the lateral position of the edge of the film, the edge of the film is dispersed and the accumulated thickness of the thicker point of the edge of the film is weakened.

Another example is a film slitter with adjustable trimming shape disclosed in patent CN106001937A, which includes a feeding roller, a cutting roller, a cooling roller group, a winding roller, a slitting device and a frame; the feeding roller is cylindrical And both ends are connected to the frame; both ends of the cutting roller are connected to the frame, and the cutting roller is used to block excess laser light and support the plastic film; the cooling roller group is composed of at least two cooling single rollers ; The slitting device is located just above the cutting roller, and the slitting device includes a moving rod, a laser cutter, a sliding rod and a screw rod; the fine-tuning motor drives the screw rod to rotate, and then drives the moving rod to swing left and right, and the laser cutting on the moving rod The device emits a laser to cut the film on the cutting roller with different cutting edges; however, the above-mentioned patent uses a laser as a cutter, and large-scale application in factory production will cause high production costs, so it is not suitable for promotion.

Utility model content

The purpose of the utility model is to provide a traveling processing device for pulling a trimming knife, which can effectively alleviate and eliminate the protrusion phenomenon of the winding edge caused by the deviation of the film thickness, and improve the film winding quality.

In order to achieve the above-mentioned purpose, the utility model proposes the following technical scheme: a kind of mobile processing equipment for pulling the edge trimming knife, including the frame beam perpendicular to the running direction of the film, the cutting knife device, the support, the motor, the transmission mechanism and the control mechanism The support is arranged on the frame beam, and at least one support is installed on the two ends of the frame beam which is symmetrical along the center line of the running direction of the film, and the support has a degree of freedom to move in the length direction of the frame beam; The cutter device is installed on a support, and the support moves to drive the cutter device to cut different positions of the film; the motor includes a motor output shaft, the motor output shaft is connected to a transmission mechanism, the transmission mechanism is connected to the support, and the transmission mechanism uses It is used to convert the rotation of the motor output shaft into the translation of the support on the frame beam; the control mechanism is connected to the motor, and the control mechanism is used to control the forward and reverse rotation of the motor. The utility model realizes that the cutter device performs swimming cutting on the edge of the film by precisely controlling the rotation direction of the motor.

Further, a limit structure is arranged on the frame beam, and the limit structure includes a first limit block and a second limit block respectively arranged on both sides of the support along the length direction of the frame beam, the first limit The block and the second limit block are used to limit the moving range of the support on the frame beam, so that the support can only move back and forth between the first limit block and the second limit block.

Further, at least one slide rail is provided at each end of the frame beam in its length direction, and the slide rail is parallel to the frame beam; the support is installed on the slide rail, and the support goes back and forth on the slide rail sliding, and then have the freedom of moving in the length direction of the frame beam; the sliding rail includes a plurality of sliding rods, each sliding rod is provided with at least one sliding block adapted to the sliding rod, and the sliding block is clamped on the On the sliding bar, the slider has the freedom of sliding back and forth on the sliding bar; the sliding rail is installed on the frame beam through the sliding bar, and the support is installed on the sliding block of the sliding rail; through the sliding bar and the sliding block The combination makes the support move more smoothly on the frame beam without jamming. Further, the transmission mechanism includes a screw rod, a bearing seat, a bearing, a coupling and a connecting sleeve; the screw rod is symmetrically arranged on both sides of the frame beam in the length direction along the center line of the film running direction, and the two ends of the screw rod are symmetrical. The bearing is connected to the bearing seat fixed on the frame beam; the screw rod is parallel to the slide rail, the screw rod is axially provided with a first thread, and one end of the screw rod is connected to the motor output shaft by a coupling; the connection The sleeve is provided with a through hole adapted to the diameter of the screw rod, and the inner surface of the through hole is provided with a second thread adapted to the first thread; the connecting sleeve is sleeved on the screw rod, and the connecting sleeve is connected to the support; the When the motor is started, the output shaft of the motor drives the screw to rotate, and the rotation of the screw drives the connecting sleeve fitted with the thread to move along the axial direction of the screw, thereby driving the support to move in the length direction of the frame beam. The transmission mechanism converts the rotation of the motor output shaft into the translation of the support through the cooperation of the threads, and has a simple structure.

Further, the control mechanism includes a proximity switch, an induction block, a PLC controller and a frequency converter; at least one proximity switch is provided on both sides of the support along the length direction of the frame beam, and the proximity switch is installed on the frame beam. The induction block is installed on the support for mutual induction with the proximity switch to generate electrical signals; the proximity switch is sequentially connected to the PLC controller and the frequency converter, and the frequency converter is connected to the motor; the PLC controller uses In order to receive the electrical signal sent by the proximity switch, the frequency converter is used to receive the output value of the PLC controller, and convert the output value of the PLC controller into an electrical signal used to control the steering of the motor, and the motor receives the electrical signal of the motor steering for steering; control; The process is simple and the operation is convenient.

It can be seen from the above technical solutions that the mobile processing equipment for pulling edge trimming knives provided by the technical solutions of the present utility model has obtained the following beneficial effects:

The mobile processing equipment for pulling edge trimming knives disclosed by the utility model has the advantages of simple structure and convenient operation; the equipment comprises a frame beam perpendicular to the running direction of the film, a support, a cutter device, a motor, a transmission mechanism and a control mechanism; the support The center line along the film running direction is symmetrically arranged on both sides of the length direction of the frame beam, the support is connected to the frame beam, the cutter device is installed on the support, and the support has the freedom to move in the length direction of the frame beam ;One end of the transmission mechanism is connected to the output shaft of the motor, and the other end is connected to the support, which can convert the rotation of the output shaft of the motor into the translation of the support on the frame beam; the control mechanism is connected to the motor to control the forward and reverse of the motor Rotation, the motor reciprocates and drives the support to reciprocate on the frame beam, and then drives the cutter device to cut different positions of the film to cut the edge of the film.

The utility model cuts off the edge film with a larger thickness on the film, reduces the protrusion phenomenon of the winding edge caused by the thickness deviation of the film, improves the film winding quality, effectively protects the contact roller rubber layer from damage, and prolongs the contact time. service life of the rollers. In addition, the mobile processing equipment of the present invention can automatically perform the mobile cutting of the edge film, and the two sides of the film are simultaneously cut off. Compared with the edge film cutting equipment in the prior art, the production cost is low, the edge film cutting efficiency is high, and It is applied to factory production in large quantities for promotion and use.

It should be understood that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, are also considered part of the inventive subject matter of the present disclosure, provided that such concepts are not mutually inconsistent.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description when taken in conjunction with the accompanying drawings. Other additional aspects of the invention, such as features and/or benefits of the exemplary embodiments, will be apparent from the following description, or learned through practice of specific embodiments in accordance with the teachings of the invention.

Description of drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by the same reference numeral. For clarity, not every component is labeled in every figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein:

Fig. 1 is the concrete structure diagram of the utility model;

Fig. 2 is the connection diagram of the support and the transmission mechanism of the utility model;

Fig. 3 is A-A sectional view in Fig. 1;

FIG. 4 is a logic control diagram of the control mechanism of the present invention.

Among them, the specific meaning of each mark is:

1-Frame beam, 1.1-Slide rail, 1.1.1-Slide rod, 1.1.2-Slider, 2-Support, 3-Motor, 4-Transmission mechanism, 4.1-Screw, 4.2-Bearing seat, 4.3 -Bearing, 4.4-Connecting sleeve, 4.5-Coupling, 5-Control mechanism, 5.1-Proximity switch, 5.2-Induction block, 5.3-PLC controller, 5.4-Inverter, 6-Cutter device.

Detailed ways

In order to better understand the technical content of the present invention, specific embodiments are given and described in conjunction with the accompanying drawings as follows.

Aspects of the invention are described in this disclosure with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. The embodiments of the present disclosure are not defined to include all aspects of the present invention. It should be understood that the various concepts and embodiments described above, as well as those described in greater detail below, can be implemented in any of a number of ways, since the concepts and embodiments disclosed herein do not Not limited to any implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

In the film production process, the film thickness at the edge of the film is larger than that in the middle of the film. When the film is wound, the thickness accumulation deviation in the local area of the transverse section of the film is likely to cause edge protrusions and affect the quality of film winding. The film needs to be cut. However, based on the existing trimming equipment, the trimming efficiency is low, the production cost of the high-efficiency trimming equipment is high, and the safety performance needs to be further guaranteed. Therefore, the present utility model aims to provide a traction trimming knife. The automatic processing equipment can reduce the production cost of the trimming equipment and improve the film winding quality at the same time.

A traveling processing equipment for pulling a trimming knife, comprising a frame beam 1 perpendicular to the running direction of the film, a cutter device 6, a support 2, a motor 3, a transmission mechanism 4 and a control mechanism 5; the support 2 is provided with On the frame beam 1, at least one support 2 is installed on each of the symmetrical ends of the frame beam 1 along the center line of the film running direction, and the cutter device 6 is installed on the support 2. 1. The degree of freedom to move in the length direction. The movement of the support 2 on the frame beam 1 drives the cutter device 6 to move. The cutter device 6 corresponds to the film and starts to cut different positions of the film; the motor 3 includes a motor output shaft, and the motor output The shaft is connected to the transmission mechanism 4, the transmission mechanism 4 is connected to the support 2, and the transmission mechanism 4 is used to convert the rotation of the motor output shaft into the translation of the support 2 on the frame beam 1; the control mechanism 5 is connected to the motor 3, the control mechanism 5 is used to control the forward and reverse rotation of the motor 3, and the forward and reverse rotation of the motor 3 drives the support 2 to reciprocate on the frame beam 1, and then drives the cutter device 6 to cut the film edge film; the utility model Through precise control of the rotation direction of the motor 3, the cutter device 6 periodically cuts different positions of the film edge film, and cooperates with the film running process to realize the floating cutting of the film edge.

Below, with reference to the embodiments shown in the accompanying drawings, the traveling processing equipment of the traction trimmer knife of the present invention will be further described in detail.

1 and 3, at least one slide rail 1.1 is provided at each end of the frame beam 1 in the length direction, and the slide rail 1.1 is parallel to the frame beam 1; the slide rail 1.1 includes several Sliding rod 1.1.1, each sliding rod 1.1.1 is provided with at least one sliding block 1.1.2 adapted to the sliding rod 1.1.1, the sliding block 1.1.2 is clamped on the sliding rod 1.1.1, The sliding block 1.1.2 has the freedom of sliding back and forth on the sliding rod 1.1.1; the sliding rail 1.1 is installed on the frame beam 1 through the sliding rod 1.1.1, and the support 2 is installed on the sliding rail 1.1. On the block 1.1.2; the sliding block 1.1.2 of the mounting support 2 is matched with the sliding rod 1.1.1, so that the support 2 has the degree of freedom to move in the length direction of the frame beam 1, and due to the sliding effect, the support The movement of the seat 2 on the frame beam 1 is smoother, and no jamming occurs under the thrust of the transmission mechanism 4 . In the embodiment shown in the drawings, the frame beam 1 is provided with a slide rail 1.1 at both ends in the longitudinal direction, and each slide rail 1.1 is composed of a pair of parallel and corresponding slide bars 1.1.1. The slide bars 1.1 .1 is fitted with two sliders 1.1.2.

In some embodiments, the cooperation between the sliding block 1.1.2 of the slide rail 1.1 and the sliding rod 1.1.1 is set as the cooperation of the ball and the sliding groove, so as to further reduce the frictional force received during the movement of the support 2 and reduce the sliding block 1.1.1. 2 wear, prolong the service life of the slide rail 1.1; in other embodiments, the support 2 is directly slidably installed on the frame beam 1, and the frame beam 1 is provided with a limit structure, the limit structure includes The first limit block and the second limit block on both sides of the support 2 along the length direction of the frame beam 1, the first limit block and the second limit block are used to limit the movement of the support 2 on the frame beam 1 range, so that the support 2 can only move back and forth between the first limit block and the second limit block.

2 and 3, the transmission mechanism 4 includes a lead screw 4.1, a bearing seat 4.2, a bearing 4.3 and a connecting sleeve 4.4; the lead screw 4.1 is symmetrically arranged along the centerline of the film running direction at the length of the frame beam 1 On both sides of the direction, both ends of the lead screw 4.1 are connected to the bearing seat 4.2 fixed on the frame beam 1 through bearings 4.3; the lead screw 4.1 is parallel to the slide rail 1.1, and the lead screw 4.1 is axially provided with a first thread, and One end of the lead screw 4.1 is connected to the output shaft of the motor; the connecting sleeve 4.4 is provided with a through hole adapted to the diameter of the lead screw 4.1, and the inner surface of the through hole is provided with a second thread adapted to the first thread; the connecting sleeve 4.4 is sleeved on the lead screw 4.1, and the connecting sleeve 4.4 is connected to the support 2; in the embodiment shown in the drawings, the motor 3 is installed on the frame beam 1, and the end of the motor 3 and the lead screw 4.1 passes through the coupling 4.5 is fixed; the motor 3 is started, the motor output shaft drives the lead screw 4.1 to rotate, and the lead screw 4.1 rotates to drive the connecting sleeve 4.4 that is threaded with it to move along the axial direction of the lead screw 4.1, and then the connecting sleeve 4.4 drives the support 2 on the machine. The frame beam 1 moves in the longitudinal direction; the transmission mechanism 4 converts the rotation of the output shaft of the motor 3 into the translational motion of the support 2 through the cooperation of the threads, the structure is simple and the operation is convenient.

With reference to the specific embodiment shown in FIG. 4 , the control mechanism 5 includes a proximity switch 5.1, an induction block 5.2, a PLC controller 5.3 and a frequency converter 5.4; A proximity switch 5.1 is provided, and the proximity switch 5.1 is installed on the frame beam 1; the induction block 5.2 is installed on the support 2 for mutual induction with the proximity switch 5.1 to generate electrical signals; the proximity switches 5.1 are connected in sequence For the PLC controller 5.3 and the frequency converter 5.4, the frequency converter 5.4 is connected to the motor 3; the PLC controller 5.3 is used to receive the electrical signal sent by the proximity switch 5.1, and the frequency converter 5.4 is used to receive the output value of the PLC controller 5.3 , and convert the output value of the PLC controller 5.3 into an electrical signal for controlling the steering of the motor 3, and the motor 3 receives the electrical signal of the steering of the motor 3 for steering; the PLC controller 5.3 adopts Siemens S7-200 series CPU224XPSi PLC, frequency converter 5.4 The micromaster440 frequency converter is adopted; the utility model limits the width of the film edge film cut by the cutter by setting the proximity switch 5.1, the control process is simple, and the operation is convenient.

When the proximity switch 5.1 on the side of the support 2 senses that the distance between the sensing block 5.2 on the support 2 reaches the set sensing value, the proximity switch 5.1 acts to generate an electrical signal indicating the arrival of the cutting width and send it to the PLC controller 5.3, PLC The controller 5.3 controls the direction of the motor 3 through the signal conversion of the frequency converter 5.4, and the support 2 runs in the opposite direction under the drive of the motor 3 until the proximity switch 5.1 on the other side of the support 2 senses the sensing block 5.2 on the support 2 The distance reaches the set point. It will act when the induction value is fixed. The action of the proximity switches 5.1 on both sides of the support 2 controls the forward and reverse rotation of the motor 3, which limits the action direction of the motor 3, so that the support 2 drives the cutter device 6 to reciprocate and periodically move between the proximity switches 5.1 on both sides. In the running state, when the cutter device 6 cuts on the film, the cutting effect of the swimming process is realized; the action position of the proximity switches 5.1 on both sides defines the maximum width and the minimum width of the cutting edge film width of the cutter device on the film, The cutting width of the film by the cutter device 6 always fluctuates between the maximum width and the minimum width. The present invention is not limited to the above disclosed PLC controller 5.3 and frequency converter 5.4, as long as the PLC controller 5.3 and frequency converter 5.4 that can achieve the above-mentioned functions are within the protection scope of the present invention.

In other embodiments, the control mechanism adopts an absolute value encoder, a PLC controller 5.3 and a frequency converter 5.4; the absolute value encoder is installed on the motor 3 and runs synchronously with the rotating shaft of the motor 3, and the absolute value encoder is internally The steering position of the motor 3 is directly set in the program. When the motor 3 moves to the position set by the absolute value encoder, the electrical signal representing the steering position of the motor 3 is sent to the PLC controller 5.3, and the PLC controller 5.3 is used to receive the absolute value The electrical signal sent by the encoder, the frequency converter 5.4 is used to receive the output value of the PLC controller 5.3, and convert the output value of the PLC controller 5.3 into an electrical signal used to control the steering of the motor 3 to control the steering of the motor 3; this method does not Proximity switch 5.1 is used, the absolute encoder multiplies the number of turns of the screw 4.1 by the tooth pitch to set the steering position of the motor 3 in the program, the cutter device 6 is more accurate in the film cutting and positioning at the edge of the film, and the control process is simpler and more convenient concise.

The floating processing equipment of the traction edge trimmer of the utility model cuts off the edge film with a larger thickness on the film, thereby reducing the protrusion phenomenon of the winding edge caused by the thickness deviation of the film, improving the winding quality of the film, and effectively protecting the film. The rubber layer of the contact roller is not damaged, which prolongs the service life of the contact roller. In addition, the moving processing equipment can automatically and synchronously remove the film on both sides of the film. Compared with the edge film cutting equipment in the prior art, the production cost is low, and the edge film cutting efficiency is high, and can be applied to factory production in large quantities. , to promote the use.

The utility model also discloses a traveling processing process of the traction trimming knife using the above-mentioned traveling processing equipment of the traction trimming knife. The specific process includes the following steps: 1) According to the production requirements of the film on the film production line, determine the film needs 2) Calculate the width of the film cut by the cutter device on one side of the film, respectively install two proximity switches 5.1 on one side of the film, and the support 2 is installed between the two proximity switches 5.1 on one side of the film. The cutter device 6 on the base 2 corresponds to the position where the film edge film is to be cut; manually adjust the distance between the induction block 5.2 on the support 2 and the proximity switch 5.1, so that the moving distance of the support 2 between the two proximity switches 5.1 Satisfy the width of the cutter device 6 to cut the film on one side of the film; 3) By adjusting the speed of the motor 3, and then adjusting the operating cycle of the support 2 between the two proximity switches 5.1, so that the operating cycle of the support 2 matches the running speed of the film 4) Start the motor 3, the control mechanism 5 controls the reciprocating direction of the motor 3, the output shaft of the motor 3 rotates, and drives the cutter device 6 on the support 2 to periodically reciprocate the edge film of the film between the two proximity switches 5.1. Swimming treatment of the edge film of the film; finally, a wavy or zigzag fringe is formed at the edge film position of the film, and the accumulation of the thickness of the wavy or zigzag fringe at the edge film position is significantly reduced when the film is wound. Edge protrusions are caused by thickness build-up deviations in localized areas.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field of the present invention can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present utility model shall be determined by what is defined in the claims.

Claims (7)

1. A moving processing device for a traction trimming cutter comprises a frame beam perpendicular to the running direction of a film, a cutter device, a support and a motor, and is characterized by further comprising a transmission mechanism and a control mechanism;

the supports are arranged on the frame beam, at least one support is respectively arranged at two ends of the frame beam which are symmetrical along the center line of the film running direction, and the supports have the freedom degree of moving in the length direction of the frame beam; the cutter device is arranged on the support, and the support moves to drive the cutter device to cut different positions of the film;

the motor is arranged on the frame beam and comprises a motor output shaft; the motor output shaft is connected with the transmission mechanism, the transmission mechanism is connected with the support, and the transmission mechanism is used for converting the rotation of the motor output shaft into the translation of the support on the frame beam;

the control mechanism is connected to the motor and used for controlling the forward and reverse rotation of the motor.

2. The traveling treatment equipment for the trailing trim knife according to claim 1, characterized in that the frame beam is provided with at least one slide rail at each of its longitudinal ends, the slide rails being parallel to the frame beam; the support is arranged on the slide rail, and the support slides back and forth on the slide rail, so that the support has the freedom degree of movement in the length direction of the frame beam.

3. The floating treatment device for the traction trimming knife according to claim 2, wherein the slide rail comprises a plurality of slide bars and slide blocks matched with the slide bars, the slide blocks are clamped on the slide bars, and the support is mounted on the slide blocks.

4. The traveling treatment equipment of the trailing trim knife according to claim 1, characterized in that the transmission mechanism comprises a screw, a bearing block, a bearing and a connecting sleeve;

the screw rods are symmetrically arranged on two sides of the length direction of the frame cross beam along the central line of the film running direction, and two ends of the screw rods are connected to bearing blocks fixed on the frame cross beam through bearings; the screw rod is parallel to the sliding rail, a first thread is axially arranged on the screw rod, and one end of the screw rod is connected to the output shaft of the motor;

a through hole with the diameter matched with that of the screw rod is formed in the connecting sleeve, and second threads matched with the first threads are formed in the inner side face of the through hole; the connecting sleeve is sleeved on the screw rod and connected to the support; the motor is started, the motor output shaft drives the screw rod to rotate, the connecting sleeve matched with the screw threads of the screw rod is driven to move axially along the screw rod, and then the support is driven to move in the length direction of the cross beam of the frame.

5. The traveling treatment equipment of the trailing trim knife according to claim 4, characterized in that the transmission mechanism further comprises a coupling, and the lead screw is connected to the motor output shaft through the coupling.

6. The floating treatment apparatus of a trailing trim knife according to claim 1 wherein the control mechanism comprises a proximity switch, an induction block, a PLC controller and a frequency converter; at least one proximity switch is arranged on each of two sides of the support along the length direction of the frame beam, and the proximity switches are installed on the frame beam; the induction block is arranged on the support and used for mutually inducing with the proximity switch to generate an electric signal;

the proximity switch is sequentially connected with the PLC and the frequency converter, and the frequency converter is connected with the motor; the PLC controller is used for receiving the electric signal sent by the proximity switch, the frequency converter is used for receiving the output value of the PLC controller and converting the output value of the PLC controller into the electric signal for controlling the motor to turn, and the motor receives the electric signal for controlling the motor to turn.

7. The traveling processing device for the trailing edge trimmer according to claim 1, wherein the frame beam is provided with a limiting structure, the limiting structure comprises a first limiting block and a second limiting block which are respectively arranged on two sides of the support in the length direction of the frame beam, and the first limiting block and the second limiting block are used for limiting the moving range of the support on the frame beam.

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