CN114803659A - High-efficiency belt production equipment and production process thereof - Google Patents

Abstract

The invention discloses a high-efficiency belt production equipment, comprising an L-shaped main frame, a belt roll is arranged on the L-shaped main frame, and an L-shaped connecting frame and a vertical installation plate are arranged on both sides of the belt roll, and the vertical installation plate A fixed clamping seat and a T-shaped guide rail are arranged on the front end wall of the L-shaped connecting frame, and the movable clamping seat is slidably arranged on the T-shaped guide rail. A belt drive mechanism is installed on the horizontal part of the L-shaped connecting frame, and the belt driving mechanism drives the movable clamping seat to pull Belts are rolled and cut. The advantage of the present invention is that the equipment cleverly combines the belt discharging and cutting process and the punching process, and when the movable clamping seat clamps the belt roll and discharges the material, the puncher can automatically press the belt through the transmission. Relying on the punching force plate to punch holes, and the movable clamping seat can cut the belt roll when it is lowered to the lowest point, which is convenient and fast. In addition, when the movable clamping seat is raised and reset, the punch can make The belt shakes to remove the waste in the hole, with a high degree of automation.

Description

A kind of high-efficiency belt production equipment and its production process

Technical field:

The invention relates to the technical field of belt processing, in particular to a high-efficiency belt production equipment and a production process thereof.

Background technique:

The belt refers to the leather belt, which is one of the main daily necessities of the people. During the production and processing of the belt, the belt needs to be punched. The existing belt processing method is to cut the belt roll first, and then cut it off. The raw material of the belt is punched, and the punching is generally done manually with a puncher, which is labor-intensive and the accuracy is not high. In addition, waste will be generated during punching, which requires extra effort to clean, and the efficiency is not high. .

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a high-efficiency belt production equipment and a production process for the deficiencies of the prior art. A fixed clamping seat and a movable clamping seat are used for discharging, and the movable clamping seat is driven by the transmission belt in front to realize up and down lifting. There is a puncher, when the movable clamping seat clamps the belt roll and discharges the material, the puncher can automatically press the belt against the punching force plate to punch holes through the transmission, and the movable clamping seat is lowered to the lowest point. At the same time, the cutting blade can cut the belt roll to obtain the belt, which is convenient and quick, the equipment cost is reduced, and the efficiency is greatly improved. In addition, the cutting blade is used to cut at the pulling end of the belt, so only after the next discharge cutting Therefore, when the movable clamping seat is raised and reset, the belt is in a slack state, and the elastic guide seat on the hole punch can hit the belt quickly and continuously during the rising process. The belt shakes slightly, so the waste in the hole can be automatically shaken off, and automatic cleaning can be realized, so that the belt with holes can be obtained after the next pulling and cutting, which has an unexpected technical effect.

In order to realize the above-mentioned technical scheme, the present invention provides the following technical scheme:

A high-efficiency belt production equipment includes an L-shaped main frame, a belt roll is arranged between a pair of convex plates above the front end wall of the side plate of the L-shaped main frame, and the left and right sides of the belt roll are respectively provided with synchronously adjustable The L-shaped connecting frame and the vertical mounting plate are provided with a fixed clamping seat and a T-shaped guide rail on the front end wall of the vertical installation plate. Correspondingly, a belt driving mechanism is installed on the horizontal part of the L-shaped connecting frame, and the belt driving mechanism drives the movable clamping base to pull the belt roll and cut it.

As a preferred option of the above technical solution, the movable clamping base is located directly below the fixed clamping base and is connected by a reset tension spring, the bottom surface of the fixed clamping base is provided with a punch, and the front end of the movable clamping base is provided with a cutting The clamping seat, the top surface and the front end surface of the cutting clamping seat are respectively provided with a clamping transmission plate and a cutting transmission seat, a pair of fixed arms are evenly arranged on the transmission belt in the belt drive mechanism, and a telescopic arm is elastically inserted in each fixed arm The outer end of each telescopic arm is rotatably provided with a driving wheel, and the driving wheel presses against the clamping transmission plate when passing through the movable clamping seat and drives the movable clamping seat to move downward.

As a preferred option of the above technical solution, the transmission belt is installed between two pairs of mounting convex plates at the upper and lower ends of the belt mounting frame and is driven by a belt motor. The outer side wall of the lower right mounting convex plate is fixed with an outer mounting arm and a rotating The inner transmission arm and the inner end of the outer installation arm are rotated with a transmission column. The transmission column is provided with a reset torsion spring, a cam support block and a first transmission gear. Electromagnetic switch, the cam support block vertically presses against the bottom surface of the inner transmission arm and presses against the electromagnetic switch after rotation, the first transmission gear meshes with the two flexible racks on the transmission belt, and the inner end of the outer installation arm is provided with There is a transmission pressure wheel, and the transmission pressure wheel corresponds to the transmission inclined surface on the front end wall of the cutting transmission seat.

As a preferred option of the above technical solution, the cutting holder is elastically inserted on the lateral clamping portion of the movable holder through a telescopic connecting block, and the cutting transmission base is inserted into the receiving groove at the front end of the cutting holder and is connected to the receiving groove. The two are connected by a shearing spring, and the cutting blade is installed in the groove in the cutting transmission base and faces the cutting groove on the lateral clamping part of the movable clamping base.

As a preferred option of the above technical solution, the rear side wall of the clamping transmission plate is connected with an upwardly extending punched force-bearing plate through a buffer compression spring, the front end of the punched force-bearing plate is provided with a limit post, and the fixing clip The bottom surface of the lateral part of the holder is provided with a guide convex plate, and the hole punch is inserted in the guide convex plate and connected by a punching spring. The small pressing spring is connected with an elastic guide seat, the puncher is located in the elastic guide seat, the belt is located between the elastic guide seat and the punching force plate, the rear end of the puncher is provided with an intermediate transmission block, and the intermediate transmission block There is a transmission guide rod on it, a transmission shaft is inserted in the longitudinal part of the right side of the fixed clamping seat, the inner end of the transmission shaft is provided with a transmission cam abutting against the middle transmission block, and the outer end of the transmission shaft is provided with a second A transmission gear, the right side wall of the movable clamping seat is provided with a vertical rack extending upward and meshing with the second transmission gear.

As a preferred option of the above technical solution, a pair of synchronizing adjusting frames are arranged on the front end wall of the side plate of the L-shaped main frame and located on both sides of the convex plate, and a synchronizing wire is rotated between each synchronizing adjusting frame and the L-shaped main frame. The front end of each synchronous screw rod is provided with a synchronous bevel gear, the two ends of the central rotating shaft of the belt reel are provided with a pair of driving bevel gears respectively meshing with the two synchronous bevel gears, and the vertical part of the L-shaped connecting frame is screwed on the On the left synchronous screw rod, the vertical installation plate is screwed on the right synchronous screw rod, and both the L-shaped connecting frame and the vertical installation plate are provided with guide rods inserted in the L-shaped main frame.

As a preference of the above technical solution, the horizontal part of the L-shaped connecting frame is provided with a reinforcing beam connected to the belt drive mechanism, the top surface of the bottom plate of the L-shaped main frame is provided with a support seat, and the top surface of the support seat is provided with a support The bottom surface of the horizontal part of the L-shaped connecting frame is pressed against the supporting wheel.

The beneficial effect of the invention is that: the equipment skillfully combines the discharging and cutting process of the belt with the punching process, the belt roll is discharged through a fixed clamping seat and a movable clamping seat, and the movable clamping seat is The front drive belt drives up and down to move up and down. The movable clamping seat is provided with a punching force plate and a cutting plate. The fixed clamping seat is provided with a puncher. The movable clamping seat is punched when the clamping belt rolls out. The puncher can automatically press the belt against the punching force plate for punching through the transmission, and the movable clamping seat can cut the belt roll by the cutting blade when it is lowered to the lowest point to obtain the belt, which is convenient and fast. The cost is reduced and the efficiency is greatly improved. In addition, the use of the cutting blade is to cut at the pulling end of the belt, so the perforated belt will only be obtained after the next discharge cutting. Therefore, the movable clamping seat is raised and reset. At this time, the belt is in a slack state, and the elastic guide seat on the hole punch can hit the belt quickly and continuously during the rising process, causing the belt to shake slightly, and the waste in the hole can automatically shake off, thus After the next pulling and cutting, the perforated belt can be obtained, and automatic cleaning can be realized, which has an unexpected technical effect.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings:

Fig. 1 is the structural representation of a kind of high-efficiency belt production equipment of the present invention;

2 is a three-dimensional perspective view of another perspective of the present invention;

Fig. 3 is the left side view of the present invention;

Fig. 4 is the front view of the present invention;

Fig. 5 is the structural representation of the belt drive mechanism in the present invention;

6 is a schematic structural diagram of the fixed clamping seat and the movable clamping seat installed on the vertical mounting plate in the present invention;

7 is a schematic structural diagram of a fixed clamping seat in the present invention;

8 is an internal cross-sectional view of the cutting holder in the present invention.

Detailed ways

The embodiments of the present invention are described below by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The “above” and “below” mentioned in this embodiment are consistent with the directions above and below the accompanying drawings, which are only for the convenience of description and are not used to limit the scope of the present invention. Changes or adjustments in their relative relationships , in the absence of substantial changes to the technical content, it should also be regarded as the scope of the present invention.

As shown in Figures 1 and 2, a high-efficiency belt production equipment includes an L-shaped main frame 1, and a belt roll 2 is provided between a pair of convex plates 11 above the front end wall of the side plate of the L-shaped main frame 1. On the front end wall of the side plate of the main frame 1 and located on both sides of the convex plate 11 are a pair of synchronizing adjusting frames 13, and a synchronizing screw 14 is rotated between each synchronizing adjusting frame 13 and the L-shaped main frame 1, and each The front end of the synchronous screw 14 is provided with a synchronous bevel gear 141, the two ends of the central rotating shaft of the belt reel 2 are provided with a pair of driving bevel gears 12 respectively meshing with the two synchronous bevel gears 141, and the vertical part of the L-shaped connecting frame 15 is screwed. Connected to the synchronization screw 14 on the left, the vertical mounting plate 17 is screwed on the synchronization screw 14 on the right, and the L-shaped connecting frame 15 and the vertical mounting plate 17 are both provided with L-shaped main frame. 1; the front end wall of the vertical mounting plate 17 is provided with a fixed clamping seat 41 and a T-shaped guide rail 171, and the movable clamping seat 42 is slidably arranged on the T-shaped Corresponding to the iron 18, a belt drive mechanism 3 is installed on the horizontal part of the L-shaped connecting frame 15, and the belt drive mechanism 3 drives the movable clamping seat 42 to pull the belt roll 2 and cut it.

As shown in FIG. 5 , FIG. 6 and FIG. 8 , the movable clamping base 42 is located directly below the fixed clamping base 41 and is connected by a reset tension spring 411 , and the bottom surface of the fixed clamping base 41 is provided with a punch 46 . , the front end of the movable clamping seat 42 is provided with a cutting clamp seat 43, the top surface and the front end surface of the cutting clamp seat 43 are respectively provided with a clamping transmission plate 431 and a cutting transmission seat 44, and the cutting clamp seat 43 is connected by a telescopic connection block 432. Elastically inserted on the lateral clamping portion of the movable clamping base 42, the cutting transmission base 44 is inserted in the receiving groove 433 at the front end of the cutting clamping base 43 and is connected with the receiving groove 312 by a shearing spring 442, and the cutting piece 443 is installed in the groove in the cutting transmission seat 44 and faces the cutting groove 422 on the lateral clamping portion of the movable clamping seat 42;

A pair of fixed arms 34 are evenly arranged on the transmission belt 33 in the belt drive mechanism 3 , a telescopic arm 341 is elastically inserted in each fixed arm 34 , and a driving wheel 342 is provided at the outer end of each telescopic arm 341 , and the driving wheel 342 When passing through the movable clamping base 42, it presses against the clamping transmission plate 431 and drives the movable clamping base 42 to move downward; the transmission belt 33 is installed between the two pairs of installation convex plates 311 at the upper and lower ends of the belt mounting frame 31 and passes through the belt motor. 32 drive, the outer side wall of the mounting convex plate 311 on the lower right side is fixed with an outer mounting arm 35 and a rotating inner transmission arm 38, the inner end of the outer mounting arm 35 is rotated with a transmission column 37, and the transmission column 37 is provided with reset The torsion spring 373, the cam support block 371 and the first transmission gear 372, the switch plate 361 on the bottom surface of the outer mounting arm 35 is provided with an electromagnetic switch 36 for controlling the start and stop of the electromagnet 18, and the cam support block 371 vertically abuts against the inner transmission arm 38 The bottom surface of the outer mounting arm 35 is pressed against the electromagnetic switch 36 after rotation, and the first transmission gear 372 meshes with the two flexible racks 331 on the transmission belt 33. The wheel 381 corresponds to the drive slope 441 on the front end wall of the cutting drive seat 44 .

As shown in FIGS. 6 and 7 , the rear side wall of the clamping transmission plate 431 is connected with an upwardly extending punching force-receiving plate 45 through a buffer compression spring 451 , and the front end surface of the punching force-receiving plate 45 is provided with a limiter. The column 452, the bottom surface of the lateral part of the fixed clamping seat 41 is provided with a guide convex plate 412, the punch 46 is inserted in the guide convex plate 412 and connected by a punch spring 461, the front end outer wall of the punch 46 It has an outer convex plate 464, the front end of the outer convex plate 464 is connected with an elastic guide seat 48 through a pair of small compression springs 465, the punch 46 is located in the elastic guide seat 48, the belt is located in the elastic guide seat 48 and the punching force plate 45, the rear end of the puncher 46 is provided with an intermediate transmission block 462, the intermediate transmission block 462 is provided with a transmission guide rod 463, and a transmission shaft 471 is inserted in the right longitudinal portion of the fixed clamping seat 41 The inner end of the transmission shaft 471 is provided with a transmission cam 47 abutting against the intermediate transmission block 462, the outer end of the transmission shaft 471 is provided with a second transmission gear 472, and the right side wall of the movable clamping seat 42 is provided with upward The vertical rack 421 extending and meshing with the second transmission gear 472 .

1 to 8 to illustrate the working principle of the present invention:

Step 1. Pull the lower end of the belt roll 2 between the cutting clamp base 43 and the movable clamp base 42, start the belt motor 32, the transmission belt 33 drives the driving wheel 342 to rotate and move vertically, and the driving wheel 342 passes through the rotating movement. The movable clamping base 42 is pressed against the clamping transmission plate 431, and the elastic force of the telescopic arm 341 is much greater than that of the telescopic connecting block 432, so the cutting clamp base 43 and the movable clamping base 42 can clamp the belt, and then the driving wheel 342 Because it is restricted by the cutting transmission seat 44, the entire movable clamping seat 42 is driven to move down to realize the discharging of the belt;

Step 2: The punched force-receiving plate 45 is elastically pressed against the front surface of the belt and the rear end is restricted by the limit post 452. When the movable clamping seat 42 is lowered, the vertical rack 421 drives the second transmission gear 472 to rotate. Due to the action of the transmission cam 47 and the punching spring 461, the punching device 46 can be continuously stretched back and forth. Since the punching force plate 45 is restricted by the limit post 452 and cannot move, the punching device 46 can bear the force of the punching hole against the belt. The plate 45 is punched, and the elastic guide seat 48 will first press the belt when punching to ensure the quality of the punching;

Step 3: When the movable clamping base 42 descends to the bottom end, it is adsorbed by the electromagnet 18. At the same time, the transmission pressing wheel 381 is pressed against the transmission inclined surface 441 of the cutting transmission base 44 so that the cutting transmission base 44 is pressed against. The cutting blade 443 extends into the cutting groove 422 to cut the belt, and the cam support block 371 and the bottom surface of the inner transmission arm 38 are connected more firmly by means of bead and groove;

Step 4. After the cutting transmission seat 44 moves, the driving wheel 342 is not restricted by it, and the telescopic arm 341 is stretched to continue to move. Then the driving wheel 342 moves until it does not intersect with the movable clamping seat 42 at all. When the rack 331 passes by, it drives the first transmission gear 372 to rotate. At this time, the cam support block 371 rotates and then presses against the electromagnetic switch 36. Since the inner transmission arm 38 is not supported by the cam support block 371, the transmission pressure wheel 381 will not move downward first. The cutting drive seat 44 and the cutting clamp seat 43 are both automatically reset, and then the electromagnet 18 is turned off, and the movable clamp seat 42 automatically moves upward under the action of the reset tension spring 411;

Step 5. When the movable clamping seat 42 is raised and reset, the vertical rack 421 drives the second transmission gear 472 to rotate again, and the puncher 46 continuously expands and contracts back and forth again, but the belt is not clamped by any object at this time. In the relaxed state, the elastic guide seat 48 can make the belt shake slightly when hitting the belt, so as to automatically clean the waste in the hole;

Step 6: After the movable clamping base 42 is reset, the next driving wheel 342 repeats the above steps to drive the movable clamping base 42 to pull, punch and cut the belt.

In addition, in the process of continuous consumption of the belt roll 2, the size of the belt roll 2 has changed. Therefore, through the drive of the driving bevel gear 12, the synchronous bevel gear 141 and the synchronous screw 14, the belt roll 2 is gradually thinning. At the same time, the displacement adjustment of the belt drive mechanism 3, the fixed clamping seat 41 and the movable clamping seat 42 will also occur simultaneously, so as to ensure that the positional relationship between the belt and these mechanisms will not be too different, and ultimately ensure the stability and stability of the processing. quality.

Claims (8)

1. The utility model provides a high efficiency belt production facility, includes L shape body frame (1), is equipped with belt roll (2), its characterized in that between a pair of flange (11) that L shape body frame (1) curb plate front end wall top has: but the left and right sides of belt roll (2) is equipped with synchronous regulation's L shape link (15) and vertical mounting panel (17) respectively, is equipped with fixed grip slipper (41) and T shape guide rail (171) on the front end wall of vertical mounting panel (17), and activity grip slipper (42) slide to set up on T shape guide rail (171) and corresponding with electro-magnet (18) of T shape guide rail (171) bottom, install belt actuating mechanism (3) on the horizontal part of L shape link (15), belt actuating mechanism (3) drive activity grip slipper (42) and pull belt roll (2) and cutting.

2. A high efficiency belt production apparatus as claimed in claim 1, wherein: the movable clamping seat (42) is located under the fixed clamping seat (41) and is connected through a reset tension spring (411), a puncher (46) is arranged on the bottom surface of the fixed clamping seat (41), a cutting clamping seat (43) is arranged at the front end of the movable clamping seat (42), a clamping transmission plate (431) and a cutting transmission seat (44) are respectively arranged on the top surface and the front end surface of the cutting clamping seat (43), a pair of fixing arms (34) are uniformly arranged on a transmission belt (33) in the belt driving mechanism (3), a telescopic arm (341) is elastically inserted in each fixing arm (34), a driving wheel (342) is arranged at the outer end of each telescopic arm (341) in a rotating mode, and the driving wheel (342) presses the clamping transmission plate (431) when passing through the movable clamping seat (42) and drives the movable clamping seat (42) to move downwards.

3. A high efficiency belt production apparatus as claimed in claim 2, wherein: the transmission belt (33) is installed between two pairs of installation convex plates (311) at the upper end and the lower end of the belt installation frame (31) and driven by a belt motor (32), an outer installation arm (35) and an inner transmission arm (38) are fixed on the outer side wall of the installation convex plate (311) on the right side of the lower portion, a transmission column (37) is rotatably arranged at the inner end of the outer installation arm (35), a reset torsion spring (373), a cam supporting block (371) and a first transmission gear (372) are arranged on the transmission column (37), an electromagnetic switch (36) for controlling the start and stop of an electromagnet (18) is arranged on a switch plate (361) on the bottom surface of the outer installation arm (35), the cam supporting block (371) vertically abuts against the bottom surface of the inner transmission arm (38) and presses against the electromagnetic switch (36) after rotation, the first transmission gear (372) is meshed with two flexible racks (331) on the transmission belt (33), a transmission pinch roller (381) is arranged at the inner end of the outer installation arm (35), the transmission press wheel (381) corresponds to the transmission inclined plane (441) on the front end wall of the cutting transmission seat (44).

4. A high efficiency belt production apparatus as claimed in claim 2, wherein: the cutting clamping seat (43) is elastically inserted in a transverse clamping part of the movable clamping seat (42) through a telescopic connecting block (432), the cutting transmission seat (44) is inserted in an accommodating groove (433) in the front end of the cutting clamping seat (43) and connected with the accommodating groove (312) through a shearing spring (442), and the cutting blade (443) is installed in a groove in the cutting transmission seat (44) and faces a cutting groove (422) in the transverse clamping part of the movable clamping seat (42).

5. A high efficiency belt production apparatus as claimed in claim 2, wherein: the punching device is characterized in that a punching stress plate (45) extending upwards is connected to the rear side wall of the clamping transmission plate (431) through a buffer pressure spring (451), a limiting column (452) is arranged on the front end face of the punching stress plate (45), a guide convex plate (412) is arranged on the bottom face of the transverse portion of the fixed clamping seat (41), a puncher (46) is inserted into the guide convex plate (412) and connected through a punching spring (461), an outer convex plate (464) is arranged on the outer wall of the front end of the puncher (46), the front end of the outer convex plate (464) is connected with an elastic guide seat (48) through a pair of small compression springs (465), the puncher (46) is located in the elastic guide seat (48), a belt is located between the elastic guide seat (48) and the punching stress plate (45), a middle transmission block (462) is arranged at the rear end of the puncher (46), a transmission guide rod (463) is arranged on the middle transmission block (462), a transmission rotating shaft (471) is inserted into the longitudinal portion of the right side of the fixed clamping seat (41), the inside end of the transmission rotating shaft (471) is provided with a transmission cam (47) attached to the middle transmission block (462), the outside end of the transmission rotating shaft (471) is provided with a second transmission gear (472), and the right side wall of the movable clamping seat (42) is provided with a vertical rack (421) which extends upwards and is meshed with the second transmission gear (472).

6. A high efficiency belt production apparatus as claimed in claim 1, wherein: the utility model discloses a belt winding machine, including L shape body frame (1), the curb plate front end wall of L shape body frame (1) just is located the both sides of flange (11) and is equipped with a pair of synchronous control frame (13), it is equipped with synchronous lead screw (14) to rotate between every synchronous control frame (13) and L shape body frame (1), the front end of every synchronous lead screw (14) is equipped with synchro bevel gear (141), the central pivot both ends of belt book (2) are equipped with a pair of initiative bevel gear (12) with two synchro bevel gear (141) engaged with respectively, the vertical portion spiro union of L shape link (15) is on left synchro bevel gear (14), vertical mounting panel (17) spiro union is on right synchro bevel gear (14), all be equipped with on L shape link (15) and vertical mounting panel (17) and insert the guide bar of establishing in L shape body frame (1).

7. A high efficiency belt production apparatus as claimed in claim 1, wherein: a reinforcing beam (151) connected with the belt driving mechanism (3) is arranged on the horizontal part of the L-shaped connecting frame (15), a supporting seat (16) is arranged on the top surface of the bottom plate of the L-shaped main frame (1), a supporting wheel (161) is arranged on the top surface of the supporting seat (16), and the bottom surface of the horizontal part of the L-shaped connecting frame (15) is pressed against the supporting wheel (161).

8. A high-efficiency belt production process is characterized in that: the method comprises the following steps:

firstly, a driving belt (33) drives a driving wheel (342) to rotate and vertically move, the driving wheel (342) presses against a clamping driving plate (431) when passing through a movable clamping seat (42), a cutting clamping seat (43) and the movable clamping seat (42) clamp the belt, and then the driving wheel (342) is limited by the cutting driving seat (44) so as to drive the whole movable clamping seat (42) to move downwards to realize the discharging of the belt;

secondly, the punching stress plate (45) is elastically pressed on the front surface of the belt, the rear end of the punching stress plate is limited by a limiting column (452), when the movable clamping seat (42) descends, the vertical rack (421) drives the second transmission gear (472) to rotate, the puncher (46) continuously stretches back and forth under the action of the transmission cam (47) and the punching spring (461), and when the puncher (46) pushes the belt to punch holes on the punching stress plate (45), the elastic guide seat (48) firstly compresses the belt, so that the punching quality is ensured;

step three, the movable clamping seat (42) is adsorbed by the electromagnet (18) when descending to the bottommost end, and meanwhile, the transmission press wheel (381) presses against the transmission inclined surface (441) of the cutting transmission seat (44) so that the cutting transmission seat (44) is pressed against the belt to cut the belt by the cutting blade (443);

fourthly, after the cutting transmission seat (44) moves, the driving wheel (342) is not limited by the driving wheel to continue moving, then the flexible rack (331) drives the first transmission gear (372) to rotate when passing through, at the moment, the cam supporting block (371) presses against the electromagnetic switch (36) after rotating, the transmission press wheel (381) moves downwards firstly and does not abut against the cutting transmission seat (44), the cutting transmission seat (44) and the cutting clamping seat (43) are reset automatically, then the electromagnet (18) is closed, and the movable clamping seat (42) moves upwards automatically under the action of the reset tension spring (411);

step five, when the movable clamping seat (42) is lifted and reset, the vertical rack (421) drives the second transmission gear (472) to rotate again, the puncher (46) continuously stretches back and forth again, but the belt is not clamped by any object and is in a relaxed state at the moment, so that the elastic guide seat (48) can enable the belt to shake in a small amplitude when the belt is hit, and waste materials in holes can be automatically cleaned;

and sixthly, after the movable clamping seat (42) is reset, the next driving wheel (342) repeats the steps to drive the movable clamping seat (42) to pull, punch and cut the belt.

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